'uml-2_6_7-2um'.
+++ /dev/null
-Kernel Low-Level PCMCIA Interface Documentation
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-John G Dorsey <john+@cs.cmu.edu>
-Updated: 30 June, 2000
-
-
-Note: this interface has not been finalized!
-See also: http://www.cs.cmu.edu/~wearable/software/pcmcia-arm.html
-
-
-Introduction
-
-Early versions of PCMCIA Card Services for StrongARM were designed to
-permit a single socket driver to run on a variety of SA-1100 boards by
-using a userland configuration process. During the conversion to the 2.3
-kernel series, all of the configuration has moved into sub-drivers in the
-kernel proper (see linux/drivers/pcmcia/sa1100*). This document describes
-the low-level interface between those sub-drivers and the sa1100 socket
-driver module.
-
-Presently, there are six operations which must be provided by the
-board-specific code. Only functions whose implementation is likely to
-differ across board designs are required at this level. Some examples
-include:
-
- - configuring card detect lines to generate interrupts
- - sensing the legal voltage levels for inserted cards
- - asserting the reset signal for a card
-
-Functions which are assumed to be the same across all designs are
-performed within the generic socket driver itself. Some examples of these
-kinds of operations include:
-
- - configuring memory access times based on the core clock frequency
- - reads/writes on memory, byte swizzling, ...
-
-The current implementation allows the specific per-board set of low-level
-operations to be determined at run time. For each specific board, the
-following structure should be filled in:
-
- struct pcmcia_low_level {
- int (*init)(struct pcmcia_init *);
- int (*shutdown)(void);
- int (*socket_state)(struct pcmcia_state_array *);
- int (*get_irq_info)(struct pcmcia_irq_info *);
- int (*configure_socket)(const struct pcmcia_configure *);
- };
-
-The component functions are described in detail below. Using the
-machine_is_*() tests, the pointer `pcmcia_low_level' should be assigned to
-the location of the table for your board.
-
-
-0. init(struct pcmcia_init *init)
-
-This operation has three responsibilities:
-
- - perform any board-specific initialization tasks
- - associate the given handler with any interrupt-generating signals
- such as card detection, or battery voltage detection
- - set up any necessary edge detection for card ready signals
-
-Argument passing for this operation is implemented by the following
-structure:
-
- struct pcmcia_init {
- void (*handler)(int irq, void *dev, struct pt_regs *regs);
- struct pcmcia_maps *maps;
- };
-
-Here, `handler' is provided by the socket driver, and `maps' must be
-modified if the default mapping isn't appropriate. This operation should
-return one of two values:
-
- - the highest-numbered socket available, plus one
- - a negative number, indicating an error in configuration
-
-Note that the former case is _not_ the same as "the number of sockets
-available." In particular, if your design uses SA-1100 slot "one" but
-not slot "zero," you MUST report "2" to the socket driver.
-
-
-1. shutdown(void)
-
-This operation takes no arguments, and will be called during cleanup for
-the socket driver module. Any state associated with the socket controller,
-including allocated data structures, reserved IRQs, etc. should be
-released in this routine.
-
-The return value for this operation is not examined.
-
-
-2. socket_state(struct pcmcia_state_array *state_array)
-
-This operation will be invoked from the interrupt handler which was set up
-in the earlier call to init(). Note, however, that it should not include
-any side effects which would be inappropriate if the operation were to
-occur when no interrupt is pending. (An extra invocation of this operation
-currently takes place to initialize state in the socket driver.)
-
-Argument passing for this operation is handled by a structure which
-contains an array of the following type:
-
- struct pcmcia_state {
- unsigned detect: 1,
- ready: 1,
- bvd1: 1,
- bvd2: 1,
- wrprot: 1,
- vs_3v: 1,
- vs_Xv: 1;
- };
-
-Upon return from the operation, a struct pcmcia_state should be filled in
-for each socket available in the hardware. For every array element (up to
-`size' in the struct pcmcia_state_saarray) which does not correspond to an
-available socket, zero the element bits. (This includes element [0] if
-socket zero is not used.)
-
-Regardless of how the various signals are routed to the SA-1100, the bits
-in struct pcmcia_state always have the following semantics:
-
- detect - 1 if a card is fully inserted, 0 otherwise
- ready - 1 if the card ready signal is asserted, 0 otherwise
- bvd1 - the value of the Battery Voltage Detect 1 signal
- bvd2 - the value of the Battery Voltage Detect 2 signal
- wrprot - 1 if the card is write-protected, 0 otherwise
- vs_3v - 1 if the card must be operated at 3.3V, 0 otherwise
- vs_Xv - 1 if the card must be operated at X.XV, 0 otherwise
-
-A note about the BVD signals: if your board does not make both lines
-directly observable to the processor, just return reasonable values. The
-standard interpretation of the BVD signals is:
-
- BVD1 BVD2
-
- 0 x battery is dead
- 1 0 battery warning
- 1 1 battery ok
-
-Regarding the voltage sense flags (vs_3v, vs_Xv), these bits should be set
-based on a sampling of the Voltage Sense pins, if available. The standard
-interpretation of the VS signals (for a "low-voltage" socket) is:
-
- VS1 VS2
-
- 0 0 X.XV, else 3.3V, else none
- 0 1 3.3V, else none
- 1 0 X.XV, else none
- 1 1 5V, else none
-
-More information about the BVD and VS conventions is available in chapter
-5 of "PCMCIA System Architecture," 2nd ed., by Don Anderson.
-
-This operation should return 1 if an IRQ is actually pending for the
-socket controller, 0 if no IRQ is pending (but no error condition exists,
-such as an undersized state array), or -1 on any error.
-
-
-3. get_irq_info(struct pcmcia_irq_info *info)
-
-This operation obtains the IRQ assignment which is legal for the given
-socket. An argument of the following type is passed:
-
- struct pcmcia_irq_info {
- unsigned int sock;
- unsigned int irq ;
- };
-
-The `sock' field contains the socket index being queried. The `irq' field
-should contain the IRQ number corresponding to the card ready signal from
-the device.
-
-This operation should return 0 on success, or -1 on any error.
-
-
-4. configure_socket(const struct pcmcia_configure *configure)
-
-This operation allows the caller to apply power to the socket, issue a
-reset, or enable various outputs. The argument is of the following type:
-
- struct pcmcia_configure {
- unsigned sock: 8,
- vcc: 8,
- vpp: 8,
- output: 1,
- speaker: 1,
- reset: 1;
- };
-
-The `sock' field contains the index of the socket to be configured. The
-`vcc' and `vpp' fields contain the voltages to be applied for Vcc and Vpp,
-respectively, in units of 0.1V. (Note that vpp==120 indicates that
-programming voltage should be applied.)
-
-The two output enables, `output' and `speaker', refer to the card data
-signal enable and the card speaker enable, respectively. The `reset' bit,
-when set, indicates that the card reset should be asserted.
-
-This operation should return 0 on success, or -1 on any error.
-
-
-Board-Specific Notes
-
-The following information is known about various SA-11x0 board designs
-which may be used as reference while adding support to the kernel.
-
-
-Carnegie Mellon Itsy/Cue (http://www.cs.cmu.edu/~wearable/itsy/)
-
- Itsy Chip Select 3 (CS3) Interface
- ("ITSY MEMORY/PCMCIA ADD-ON BOARD with BATTERY and CHARGER CIRCUITRY,"
- memo dated 5-20-99, from Tim Manns to Richard Martin, et. al)
-
- Read:
- ABVD2 (SS)D0 A slot, Battery Voltage Detect
- ABVD1 (SS)D1
- AVSS2 (SS)D2 A slot, Voltage Sense
- AVSS1 (SS)D3
- GND (SS)D4
- GND (SS)D5
- GND (SS)D6
- GND (SS)D7
-
- BBVD2 (SS)D8 B slot, Battery Voltage Detect
- BBVD1 (SS)D9
- BVSS2 (SS)D10 B slot, Voltage Sense
- BVSS1 (SS)D11
- GND (SS)D12
- GND (SS)D13
- GND (SS)D14
- GND (SS)D15
-
- Write:
- (SS)D0 A_VPP_VCC LTC1472 VPPEN1
- (SS)D1 A_VPP_PGM LTC1472 VPPEN0
- (SS)D2 A_VCC_3 LTC1472 VCCEN0
- (SS)D3 A_VCC_5 LTC1472 VCCEN1
- (SS)D4 RESET (A SLOT)
- (SS)D5 GND
- (SS)D6 GND
- (SS)D7 GND
-
- (SS)D8 B_VPP_VCC LTC1472 VPPEN1
- (SS)D9 B_VPP_PGM LTC1472 VPPEN0
- (SS)D10 B_VCC_3 LTC1472 VCCEN0
- (SS)D11 B_VCC_5 LTC1472 VCCEN1
- (SS)D12 RESET (B SLOT)
- (SS)D13 GND
- (SS)D14 GND
- (SS)D15 GND
-
- GPIO pin assignments are as follows: (from schematics)
-
- GPIO 10 Slot 0 Card Detect
- GPIO 11 Slot 1 Card Detect
- GPIO 12 Slot 0 Ready/Interrupt
- GPIO 13 Slot 1 Ready/Interrupt
-
-
-
-Intel SA-1100 Multimedia Board (http://developer.intel.com/design/strong/)
-
- CPLD Registers
- SA-1100 Multimedia Development Board with Companion SA-1101 Development
- Board User's Guide, p.4-42
-
- This SA-1100/1101 development package uses only one GPIO pin (24) to
- signal changes in card status, and requires software to inspect a
- PCMCIA status register to determine the source.
-
- Read: (PCMCIA Power Sense Register - 0x19400000)
- S0VS1 0 Slot 0 voltage sense
- S0VS2 1
- S0BVD1 2 Slot 0 battery voltage sense
- S0BVD2 3
- S1VS1 4 Slot 1 voltage sense
- S1VS2 5
- S1BVD1 6 Slot 1 battery voltage sense
- S1BVD2 7
-
- Read/Write: (PCMCIA Power Control Register - 0x19400002)
- S0VPP0 0 Slot 0 Vpp
- S0VPP1 1
- S0VCC0 2 Slot 0 Vcc
- S0VCC1 3
- S1VPP0 4 Slot 1 Vpp
- S1VPP1 5
- S1VCC0 6 Slot 1 Vcc
- S1VCC1 7
-
- Read: (PCMCIA Status Register - 0x19400004)
- S0CD1 0 Slot 0 Card Detect 1
- S0RDY 1 Slot 0 Ready/Interrupt
- S0STSCHG 2 Slot 0 Status Change
- S0Reset 3 Slot 0 Reset (RW)
- S1CD1 4 Slot 1 Card Detect 1
- S1RDY 5 Slot 1 Ready/Interrupt
- S1STSCHG 6 Slot 1 Status Change
- S1Reset 7 Slot 1 Reset (RW)
-
-
-
-Intel SA-1100 Evaluation Platform (http://developer.intel.com/design/strong/)
-
- Brutus I/O Pins and Chipselect Register
- pcmcia-brutus.c, by Ivo Clarysse
- (What's the official reference for this info?)
-
- This SA-1100 development board uses more GPIO pins than say, the Itsy
- or the SA-1100/1101 multimedia package. The pin assignments are as
- follows:
-
- GPIO 2 Slot 0 Battery Voltage Detect 1
- GPIO 3 Slot 0 Ready/Interrupt
- GPIO 4 Slot 0 Card Detect
- GPIO 5 Slot 1 Battery Voltage Detect 1
- GPIO 6 Slot 1 Ready/Interrupt
- GPIO 7 Slot 1 Card Detect
-
- Like the Itsy, Brutus uses a chipselect register in static memory
- bank 3 for the other signals, such as voltage sense or reset:
-
- Read:
- P0_VS1 8 Slot 0 Voltage Sense
- P0_VS2 9
- P0_STSCHG 10 Slot 0 Status Change
- P1_VS1 12 Slot 1 Voltage Sense
- P1_VS2 13
- P1_STSCHG 14 Slot 1 Status Change
-
- Read/Write:
- P0_ 16 Slot 0 MAX1600EAI control line
- P0_ 17 Slot 0 MAX1600EAI control line
- P0_ 18 Slot 0 MAX1600EAI control line
- P0_ 19 Slot 0 MAX1600EAI control line
- P0_ 20 Slot 0 12V
- P0_ 21 Slot 0 Vpp to Vcc (CONFIRM?)
- P0_ 22 Slot 0 enable fan-out drivers & xcvrs
- P0_SW_RST 23 Slot 0 Reset
- P1_ 24 Slot 1 MAX1600EAI control line
- P1_ 25 Slot 1 MAX1600EAI control line
- P1_ 26 Slot 1 MAX1600EAI control line
- P1_ 27 Slot 1 MAX1600EAI control line
- P1_ 28 Slot 1 12V
- P1_ 29 Slot 1 Vpp to Vcc (CONFIRM?)
- P1_ 30 Slot 1 enable fan-out drivers & xcvrs
- P1_SW_RST 31 Slot 1 Reset
-
- For each slot, the bits labelled "MAX1600EAI" should (apparently)
- be written with the value 0101 for Vcc 3.3V, and 1001 for Vcc 5V.
-
-
-
-Intel SA-1110 Development Platform (http://developer.intel.com/design/strong/)
-
- GPIO Pin Descriptions and Board Control Register
- SA-1110 Microprocessor Development Board User's Guide, p.4-7, 4-10
-
- The Assabet board contains only a single Compact Flash slot,
- attached to slot 1 on the SA-1110. Card detect, ready, and BVD
- signals are routed through GPIO, with power and reset placed in a
- control register. Note that the CF bus must be enabled before use.
-
- GPIO 21 Slot 1 Compact Flash interrupt
- GPIO 22 Slot 1 card detect (CD1 NOR CD2)
- GPIO 24 Slot 1 Battery Voltage Detect 2
- GPIO 25 Slot 1 Battery Voltage Detect 1
-
- Write-only: (Board Control Register - 0x12000000)
- CF_PWR 0 CF bus power (3.3V)
- CF_RST 1 CF reset
- CF_Bus_On 7 CF bus enable
-
+++ /dev/null
-README on the SDRAM Controller for the LH7a40X
-==============================================
-
-The standard configuration for the SDRAM controller generates a sparse
-memory array. The precise layout is determined by the SDRAM chips. A
-default kernel configuration assembles the discontiguous memory
-regions into separate memory nodes via the NUMA (Non-Uniform Memory
-Architecture) facilities. In this default configuration, the kernel
-is forgiving about the precise layout. As long as it is given an
-accurate picture of available memory by the bootloader the kernel will
-execute correctly.
-
-The SDRC supports a mode where some of the chip select lines are
-swapped in order to make SDRAM look like a synchronous ROM. Setting
-this bit means that the RAM will present as a contiguous array. Some
-programmers prefer this to the discontiguous layout. Be aware that
-may be a penalty for this feature where some some configurations of
-memory are significantly reduced; i.e. 64MiB of RAM appears as only 32
-MiB.
-
-There are a couple of configuration options to override the default
-behavior. When the SROMLL bit is set and memory appears as a
-contiguous array, there is no reason to support NUMA.
-CONFIG_LH7A40X_CONTIGMEM disables NUMA support. When physical memory
-is discontiguous, the memory tables are organized such that there are
-two banks per nodes with a small gap between them. This layout wastes
-some kernel memory for page tables representing non-existent memory.
-CONFIG_LH7A40X_ONE_BANK_PER_NODE optimizes the node tables such that
-there are no gaps. These options control the low level organization
-of the memory management tables in ways that may prevent the kernel
-from booting or may cause the kernel to allocated excessively large
-page tables. Be warned. Only change these options if you know what
-you are doing. The default behavior is a reasonable compromise that
-will suit all users.
-
---
-
-A typical 32MiB system with the default configuration options will
-find physical memory managed as follows.
-
- node 0: 0xc0000000 4MiB
- 0xc1000000 4MiB
- node 1: 0xc4000000 4MiB
- 0xc5000000 4MiB
- node 2: 0xc8000000 4MiB
- 0xc9000000 4MiB
- node 3: 0xcc000000 4MiB
- 0xcd000000 4MiB
-
-Setting CONFIG_LH7A40X_ONE_BANK_PER_NODE will put each bank into a
-separate node.
+++ /dev/null
-Release notes for Linux Kernel VFP support code
------------------------------------------------
-
-Date: 20 May 2004
-Author: Russell King
-
-This is the first release of the Linux Kernel VFP support code. It
-provides support for the exceptions bounced from VFP hardware found
-on ARM926EJ-S.
-
-This release has been validated against the SoftFloat-2b library by
-John R. Hauser using the TestFloat-2a test suite. Details of this
-library and test suite can be found at:
-
- http://www.cs.berkeley.edu/~jhauser/arithmetic/SoftFloat.html
-
-The operations which have been tested with this package are:
-
- - fdiv
- - fsub
- - fadd
- - fmul
- - fcmp
- - fcmpe
- - fcvtd
- - fcvts
- - fsito
- - ftosi
- - fsqrt
-
-All the above pass softfloat tests with the following exceptions:
-
-- fadd/fsub shows some differences in the handling of +0 / -0 results
- when input operands differ in signs.
-- the handling of underflow exceptions is slightly different. If a
- result underflows before rounding, but becomes a normalised number
- after rounding, we do not signal an underflow exception.
-
-Other operations which have been tested by basic assembly-only tests
-are:
-
- - fcpy
- - fabs
- - fneg
- - ftoui
- - ftosiz
- - ftouiz
-
-The combination operations have not been tested:
-
- - fmac
- - fnmac
- - fmsc
- - fnmsc
- - fnmul
+++ /dev/null
-
-Board Overview
------------------------------
-
-This is an beta release of the Xscale Linux port to the ADI 80200EVB
-evaluation board.
-
-The 80200EVB is an evaluation platform for ADI Engineering's high-performance
-80200FCC chipset for the Intel 80200 XScale CPU. The 80200FCC is an open
-source FPGA based system that contains a PCI unit and a high performance
-memory controller.
-
-In addition to the 80200FCC, the board also contains a 16C550 UART, and 4MB
-of flash.
-
-The board is still under development and currently only the UART is functional
-as the PCI bits have not been programmed into the FPGA.
-
-For more information on the board, see http://www.adiengineering.com
-
-Port Status
------------------------------
-
-Supported:
-
-- Onboard UART (Polled operation only)
-- Cache/TLB locking on 80200 CPU
-
-TODO:
-
-- PCI when hardware supports it
-
-Building the Kernel
------------------------------
-change Linux makefile
-make adi_evb_config
-make oldconfig
-make zImage
-
-Loading Linux
------------------------------
-
-Before you can use Linux on the ADI board, you need to grab the following:
-
-ADI 80200EVB Monitor:
- ftp://source.mvista.com/pub/xscale/ADI_EVB/monitor.srec
-
-ADI JFFS2 Image:
- ftp://source.mvista.com/pub/xscale/ADI_EVB/adi.jffs2
-
-Once you've got the Cygnus prompt, type in the following command:
-
- load
-
-On another terminal window:
-
- cat monitor.srec > /dev/ttyS0
-
-(replace ttyS0 with the serial port you are using)
-
-Once completed, just type 'go' at the cygmon prompt and you should see:
-
- MontaVista IQ80310 Monitor Version 0.1
- monitor>
-
-Type 'b 115200' at the prompt and change your terminal speed to 115200
-
-The first thing to do is to upload and burn the jffs2 filesystem image
-onto the boards 4MB of flash:
-
- monitor> u c1000000
- Uploading file at 0xc1000000
- Now send file with ymodem
-
-Do as the monitor says and transfer the file adi.jffs2. Once complete,
-the following will copy the jffs2 image to location 0x80000 in the flash.
-
- monitor> f 8000 c1000000 200000
- Erasing sector 0x00080000
- Writing sector 0x00080000 with data at 0xC1000000
- Erasing sector 0x000A0000
- Writing sector 0x000A0000 with data at 0xC1020000
- Erasing sector 0x000C0000
- ...
-
-Now use the same command as above to upload your zImage to location c1000000.
-When you've done that, type 'j c1000000' to run Linux. Login as
-root and you're all set to go.
-
-Misc Notes
------------------------------
-
-The current version of the HW does not have an onboard timer, so the 80200
-PMU is not available for general use as it is being used for a timer source.
-
-By default, the MTD driver reserves the first 512K for bootloaders and
-the remaining 3.5MB for the filesystem. You can edit drivers/mtd/map/adi_evb.c
-to change this as needed for your application.
-
-Contributors
------------------------------
-
-Thanks to ADI Engineering for providing the hardware for development
-
-Deepak Saxena <dsaxena@mvista.com> - Initial port
-
------------------------------
-Enjoy. If you have any problem please contact Deepak Saxena
-dsaxena@mvista.com
-
+++ /dev/null
-
-Board Overview
------------------------------
-
-The Cyclone IQ80310 board is an evaluation platform for Intel's 80200 Xscale
-CPU and 80312 Intelligent I/O chipset (collectively called IOP310 chipset).
-
-The 80312 contains dual PCI hoses (called the ATUs), a PCI-to-PCI bridge,
-three DMA channels (1 on secondary PCI, one on primary PCI ), I2C, I2O
-messaging unit, XOR unit for RAID operations, a bus performance monitoring
-unit, and a memory controller with ECC features.
-
-For more information on the board, see http://developer.intel.com/iio
-
-Port Status
------------------------------
-
-Supported:
-
-- MTD/JFFS/JFFS2
-- NFS root
-- RAMDISK root
-- 2ndary PCI slots
-- Onboard ethernet
-- Serial ports (ttyS0/S1)
-- Cache/TLB locking on 80200 CPU
-- Performance monitoring unit on 80200 CPU
-- 80200 Performance Monitoring Unit
-- Acting as a system controller on Cyclone 80303BP PCI backplane
-- DMA engines (EXPERIMENTAL)
-- 80312 Bus Performance Monitor (EXPERIMENTAL)
-- Application Accelerator Unit (XOR engine for RAID) (EXPERIMENTAL)
-- Messaging Unit (EXPERIMENTAL)
-
-TODO:
-- I2C
-
-Building the Kernel
------------------------------
-make iq80310_config
-make oldconfig
-make zImage
-
-This will build an image setup for BOOTP/NFS root support. To change this,
-just run make menuconfig and disable nfs root or add a "root=" option.
-
-Preparing the Hardware
------------------------------
-
-This document assumes you're using a Rev D or newer board running
-Redboot as the bootloader. Note that the version of RedBoot provided
-with the boards has a major issue and you need to replace it with the
-latest RedBoot. You can grab the source from the ECOS CVS or you can
-get a prebuilt image and burn it in using FRU at:
-
- ftp://source.mvista.com/pub/xscale/iq80310/redboot.bin
-
-Make sure you do an 'fis init' command once you boot with the new
-RedBoot image.
-
-
-
-Downloading Linux
------------------------------
-
-Assuming you have your development system setup to act as a bootp/dhcp
-server and running tftp:
-
- RedBoot> load -r -b 0xa1008000 /tftpboot/zImage.xs
- Raw file loaded 0xa1008000-0xa1094bd8
-
-If you're not using dhcp/tftp, you can use y-modem instead:
-
- RedBoot> load -r -b 0xa1008000 -m y
-
-Note that on Rev D. of the board, tftp does not work due to intermittent
-interrupt issues, so you need to download using ymodem.
-
-Once the download is completed:
-
- RedBoot> go 0xa1008000
-
-Root Devices
------------------------------
-
-A kernel is not useful without a root filesystem, and you have several
-choices with this board: NFS root, RAMDISK, or JFFS/JFFS2. For development
-purposes, it is suggested that you use NFS root for easy access to various
-tools. Once you're ready to deploy, probably want to utilize JFFS/JFFS2 on
-the flash device.
-
-MTD on the IQ80310
------------------------------
-
-Linux on the IQ80310 supports RedBoot FIS paritioning if it is enabled.
-Out of the box, once you've done 'fis init' on RedBoot, you will get
-the following partitioning scheme:
-
- root@192.168.0.14:~# cat /proc/mtd
- dev: size erasesize name
- mtd0: 00040000 00020000 "RedBoot"
- mtd1: 00040000 00020000 "RedBoot[backup]"
- mtd2: 0075f000 00020000 "unallocated space"
- mtd3: 00001000 00020000 "RedBoot config"
- mtd4: 00020000 00020000 "FIS directory"
-
-To create an FIS directory, you need to use the fis command in RedBoot.
-As an example, you can burn the kernel into the flash once it's downloaded:
-
- RedBoot> fis create -b 0xa1008000 -l 0x8CBAC -r 0xa1008000 -f 0x80000 kernel
- ... Erase from 0x00080000-0x00120000: .....
- ... Program from 0xa1008000-0xa1094bac at 0x00080000: .....
- ... Unlock from 0x007e0000-0x00800000: .
- ... Erase from 0x007e0000-0x00800000: .
- ... Program from 0xa1fdf000-0xa1fff000 at 0x007e0000: .
- ... Lock from 0x007e0000-0x00800000: .
-
- RedBoot> fis list
- Name FLASH addr Mem addr Length Entry point
- RedBoot 0x00000000 0x00000000 0x00040000 0x00000000
- RedBoot[backup] 0x00040000 0x00040000 0x00040000 0x00000000
- RedBoot config 0x007DF000 0x007DF000 0x00001000 0x00000000
- FIS directory 0x007E0000 0x007E0000 0x00020000 0x00000000
- kernel 0x00080000 0xA1008000 0x000A0000 0x00000000
-
-This leads to the following Linux MTD setup:
-
- mtroot@192.168.0.14:~# cat /proc/mtd
- dev: size erasesize name
- mtd0: 00040000 00020000 "RedBoot"
- mtd1: 00040000 00020000 "RedBoot[backup]"
- mtd2: 000a0000 00020000 "kernel"
- mtd3: 006bf000 00020000 "unallocated space"
- mtd4: 00001000 00020000 "RedBoot config"
- mtd5: 00020000 00020000 "FIS directory"
-
-Note that there is not a 1:1 mapping to the number of RedBoot paritions to
-MTD partitions as unused space also gets allocated into MTD partitions.
-
-As an aside, the -r option when creating the Kernel entry allows you to
-simply do an 'fis load kernel' to copy the image from flash into memory.
-You can then do an 'fis go 0xa1008000' to start Linux.
-
-If you choose to use static partitioning instead of the RedBoot partioning:
-
- /dev/mtd0 0x00000000 - 0x0007ffff: Boot Monitor (512k)
- /dev/mtd1 0x00080000 - 0x0011ffff: Kernel Image (640K)
- /dev/mtd2 0x00120000 - 0x0071ffff: File System (6M)
- /dev/mtd3 0x00720000 - 0x00800000: RedBoot Reserved (896K)
-
-To use a JFFS1/2 root FS, you need to donwload the JFFS image using either
-tftp or ymodem, and then copy it to flash:
-
- RedBoot> load -r -b 0xa1000000 /tftpboot/jffs.img
- Raw file loaded 0xa1000000-0xa1600000
- RedBoot> fis create -b 0xa1000000 -l 0x600000 -f 0x120000 jffs
- ... Erase from 0x00120000-0x00720000: ..................................
- ... Program from 0xa1000000-0xa1600000 at 0x00120000: ..................
- ......................
- ... Unlock from 0x007e0000-0x00800000: .
- ... Erase from 0x007e0000-0x00800000: .
- ... Program from 0xa1fdf000-0xa1fff000 at 0x007e0000: .
- ... Lock from 0x007e0000-0x00800000: .
- RedBoot> fis list
- Name FLASH addr Mem addr Length Entry point
- RedBoot 0x00000000 0x00000000 0x00040000 0x00000000
- RedBoot[backup] 0x00040000 0x00040000 0x00040000 0x00000000
- RedBoot config 0x007DF000 0x007DF000 0x00001000 0x00000000
- FIS directory 0x007E0000 0x007E0000 0x00020000 0x00000000
- kernel 0x00080000 0xA1008000 0x000A0000 0xA1008000
- jffs 0x00120000 0x00120000 0x00600000 0x00000000
-
-This looks like this in Linux:
-
- root@192.168.0.14:~# cat /proc/mtd
- dev: size erasesize name
- mtd0: 00040000 00020000 "RedBoot"
- mtd1: 00040000 00020000 "RedBoot[backup]"
- mtd2: 000a0000 00020000 "kernel"
- mtd3: 00600000 00020000 "jffs"
- mtd4: 000bf000 00020000 "unallocated space"
- mtd5: 00001000 00020000 "RedBoot config"
- mtd6: 00020000 00020000 "FIS directory"
-
-You need to boot the kernel once and watch the boot messages to see how the
-JFFS RedBoot partition mapped into the MTD partition scheme.
-
-You can grab a pre-built JFFS image to use as a root file system at:
-
- ftp://source.mvista.com/pub/xscale/iq80310/jffs.img
-
-For detailed info on using MTD and creating a JFFS image go to:
-
- http://www.linux-mtd.infradead.org.
-
-For details on using RedBoot's FIS commands, type 'fis help' or consult
-your RedBoot manual.
-
-Contributors
------------------------------
-
-Thanks to Intel Corporation for providing the hardware.
-
-John Clark <jclark@teamasa.com> - Initial discovery of RedBoot issues
-Dave Jiang <dave.jiang@intel.com> - IRQ demux fixes, AAU, DMA, MU
-Nicolas Pitre <nico@cam.org> - Initial port, cleanup, debugging
-Matt Porter <mporter@mvista.com> - PCI subsystem development, debugging
-Tim Sanders <tsanders@sanders.org> - Initial PCI code
-Mark Salter <msalter@redhat.com> - RedBoot fixes
-Deepak Saxena <dsaxena@mvista.com> - Cleanup, debug, cache lock, PMU
-
------------------------------
-Enjoy.
-
-If you have any problems please contact Deepak Saxena <dsaxena@mvista.com>
-
-A few notes from rmk
------------------------------
-
-These are notes of my initial experience getting the IQ80310 Rev D up and
-running. In total, it has taken many hours to work out what's going on...
-The version of redboot used is:
-
- RedBoot(tm) bootstrap and debug environment, version UNKNOWN - built 14:58:21, Aug 15 2001
-
-
-1. I've had a corrupted download of the redboot.bin file from Montavista's
- FTP site. It would be a good idea if there were md5sums, sum or gpg
- signatures available to ensure the integrity of the downloaded files.
- The result of this was an apparantly 100% dead card.
-
-2. RedBoot Intel EtherExpress Pro 100 driver seems to be very unstable -
- I've had it take out the whole of a 100mbit network for several minutes.
- The Hub indiates ZERO activity, despite machines attempting to communicate.
- Further to this, while tftping the kernel, the transfer will stall regularly,
- and might even drop the link LED.
-
-3. There appears to be a bug in the Intel Documentation Pack that comes with
- the IQ80310 board. Serial port 1, which is the socket next to the LEDs
- is address 0xfe810000, not 0xfe800000.
-
- Note that RedBoot uses either serial port 1 OR serial port 2, so if you
- have your console connected to the wrong port, you'll see redboot messages
- but not kernel boot messages.
-
-4. Trying to use fconfig to setup a boot script fails - it hangs when trying
- to erase the flash.
+++ /dev/null
-
-Board Overview
------------------------------
-
-The Worcester IQ80321 board is an evaluation platform for Intel's 80321 Xscale
-CPU (sometimes called IOP321 chipset).
-
-The 80321 contains a single PCI hose (called the ATUs), a PCI-to-PCI bridge,
-two DMA channels, I2C, I2O messaging unit, XOR unit for RAID operations,
-a bus performance monitoring unit, and a memory controller with ECC features.
-
-For more information on the board, see http://developer.intel.com/iio
-
-Port Status
------------------------------
-
-Supported:
-
-- MTD/JFFS/JFFS2 root
-- NFS root
-- RAMDISK root
-- Serial port (ttyS0)
-- Cache/TLB locking on 80321 CPU
-- Performance monitoring unit on 80321 CPU
-
-TODO:
-
-- DMA engines
-- I2C
-- 80321 Bus Performance Monitor
-- Application Accelerator Unit (XOR engine for RAID)
-- I2O Messaging Unit
-- I2C unit
-- SSP
-
-Building the Kernel
------------------------------
-make iq80321_config
-make oldconfig
-make zImage
-
-This will build an image setup for BOOTP/NFS root support. To change this,
-just run make menuconfig and disable nfs root or add a "root=" option.
-
-Preparing the Hardware
------------------------------
-
-Make sure you do an 'fis init' command once you boot with the new
-RedBoot image.
-
-Downloading Linux
------------------------------
-
-Assuming you have your development system setup to act as a bootp/dhcp
-server and running tftp:
-
-NOTE: The 80321 board uses a different default memory map than the 80310.
-
- RedBoot> load -r -b 0x01008000 -m y
-
-Once the download is completed:
-
- RedBoot> go 0x01008000
-
-There is a version of RedBoot floating around that has DHCP support, but
-I've never been able to cleanly transfer a kernel image and have it run.
-
-Root Devices
------------------------------
-
-A kernel is not useful without a root filesystem, and you have several
-choices with this board: NFS root, RAMDISK, or JFFS/JFFS2. For development
-purposes, it is suggested that you use NFS root for easy access to various
-tools. Once you're ready to deploy, probably want to utilize JFFS/JFFS2 on
-the flash device.
-
-MTD on the IQ80321
------------------------------
-
-Linux on the IQ80321 supports RedBoot FIS paritioning if it is enabled.
-Out of the box, once you've done 'fis init' on RedBoot, you will get
-the following partitioning scheme:
-
- root@192.168.0.14:~# cat /proc/mtd
- dev: size erasesize name
- mtd0: 00040000 00020000 "RedBoot"
- mtd1: 00040000 00020000 "RedBoot[backup]"
- mtd2: 0075f000 00020000 "unallocated space"
- mtd3: 00001000 00020000 "RedBoot config"
- mtd4: 00020000 00020000 "FIS directory"
-
-To create an FIS directory, you need to use the fis command in RedBoot.
-As an example, you can burn the kernel into the flash once it's downloaded:
-
- RedBoot> fis create -b 0x01008000 -l 0x8CBAC -r 0x01008000 -f 0x80000 kernel
- ... Erase from 0x00080000-0x00120000: .....
- ... Program from 0x01008000-0x01094bac at 0x00080000: .....
- ... Unlock from 0x007e0000-0x00800000: .
- ... Erase from 0x007e0000-0x00800000: .
- ... Program from 0x01fdf000-0x01fff000 at 0x007e0000: .
- ... Lock from 0x007e0000-0x00800000: .
-
- RedBoot> fis list
- Name FLASH addr Mem addr Length Entry point
- RedBoot 0x00000000 0x00000000 0x00040000 0x00000000
- RedBoot[backup] 0x00040000 0x00040000 0x00040000 0x00000000
- RedBoot config 0x007DF000 0x007DF000 0x00001000 0x00000000
- FIS directory 0x007E0000 0x007E0000 0x00020000 0x00000000
- kernel 0x00080000 0x01008000 0x000A0000 0x00000000
-
-This leads to the following Linux MTD setup:
-
- mtroot@192.168.0.14:~# cat /proc/mtd
- dev: size erasesize name
- mtd0: 00040000 00020000 "RedBoot"
- mtd1: 00040000 00020000 "RedBoot[backup]"
- mtd2: 000a0000 00020000 "kernel"
- mtd3: 006bf000 00020000 "unallocated space"
- mtd4: 00001000 00020000 "RedBoot config"
- mtd5: 00020000 00020000 "FIS directory"
-
-Note that there is not a 1:1 mapping to the number of RedBoot paritions to
-MTD partitions as unused space also gets allocated into MTD partitions.
-
-As an aside, the -r option when creating the Kernel entry allows you to
-simply do an 'fis load kernel' to copy the image from flash into memory.
-You can then do an 'fis go 0x01008000' to start Linux.
-
-If you choose to use static partitioning instead of the RedBoot partioning:
-
- /dev/mtd0 0x00000000 - 0x0007ffff: Boot Monitor (512k)
- /dev/mtd1 0x00080000 - 0x0011ffff: Kernel Image (640K)
- /dev/mtd2 0x00120000 - 0x0071ffff: File System (6M)
- /dev/mtd3 0x00720000 - 0x00800000: RedBoot Reserved (896K)
-
-To use a JFFS1/2 root FS, you need to donwload the JFFS image using either
-tftp or ymodem, and then copy it to flash:
-
- RedBoot> load -r -b 0x01000000 /tftpboot/jffs.img
- Raw file loaded 0x01000000-0x01600000
- RedBoot> fis create -b 0x01000000 -l 0x600000 -f 0x120000 jffs
- ... Erase from 0x00120000-0x00720000: ..................................
- ... Program from 0x01000000-0x01600000 at 0x00120000: ..................
- ......................
- ... Unlock from 0x007e0000-0x00800000: .
- ... Erase from 0x007e0000-0x00800000: .
- ... Program from 0x01fdf000-0x01fff000 at 0x007e0000: .
- ... Lock from 0x007e0000-0x00800000: .
- RedBoot> fis list
- Name FLASH addr Mem addr Length Entry point
- RedBoot 0x00000000 0x00000000 0x00040000 0x00000000
- RedBoot[backup] 0x00040000 0x00040000 0x00040000 0x00000000
- RedBoot config 0x007DF000 0x007DF000 0x00001000 0x00000000
- FIS directory 0x007E0000 0x007E0000 0x00020000 0x00000000
- kernel 0x00080000 0x01008000 0x000A0000 0x01008000
- jffs 0x00120000 0x00120000 0x00600000 0x00000000
-
-This looks like this in Linux:
-
- root@192.168.0.14:~# cat /proc/mtd
- dev: size erasesize name
- mtd0: 00040000 00020000 "RedBoot"
- mtd1: 00040000 00020000 "RedBoot[backup]"
- mtd2: 000a0000 00020000 "kernel"
- mtd3: 00600000 00020000 "jffs"
- mtd4: 000bf000 00020000 "unallocated space"
- mtd5: 00001000 00020000 "RedBoot config"
- mtd6: 00020000 00020000 "FIS directory"
-
-You need to boot the kernel once and watch the boot messages to see how the
-JFFS RedBoot partition mapped into the MTD partition scheme.
-
-You can grab a pre-built JFFS image to use as a root file system at:
-
- ftp://source.mvista.com/pub/xscale/iq80310/jffs.img
-
-For detailed info on using MTD and creating a JFFS image go to:
-
- http://www.linux-mtd.infradead.org.
-
-For details on using RedBoot's FIS commands, type 'fis help' or consult
-your RedBoot manual.
-
-BUGS and ISSUES
------------------------------
-
-* As shipped from Intel, pre-production boards have two issues:
-
-- The on board ethernet is disabled S8E1-2 is off. You will need to turn it on.
-
-- The PCIXCAPs are configured for a 100Mhz clock, but the clock selected is
- actually only 66Mhz. This causes the wrong PPL multiplier to be used and the
- board only runs at 400Mhz instead of 600Mhz. The way to observe this is to
- use a independent clock to time a "sleep 10" command from the prompt. If it
- takes 15 seconds instead of 10, you are running at 400Mhz.
-
-- The experimental IOP310 drivers for the AAU, DMA, etc. are not supported yet.
-
-Contributors
------------------------------
-The port to the IQ80321 was performed by:
-
-Rory Bolt <rorybolt@pacbell.net> - Initial port, debugging.
-
-This port was based on the IQ80310 port with the following contributors:
-
-Nicolas Pitre <nico@cam.org> - Initial port, cleanup, debugging
-Matt Porter <mporter@mvista.com> - PCI subsystem development, debugging
-Tim Sanders <tsanders@sanders.org> - Initial PCI code
-Deepak Saxena <dsaxena@mvista.com> - Cleanup, debug, cache lock, PMU
-
-The port is currently maintained by Deepak Saxena <dsaxena@mvista.com>
-
------------------------------
-Enjoy.
+++ /dev/null
-Support functions for the Intel 80310 AAU
-===========================================
-
-Dave Jiang <dave.jiang@intel.com>
-Last updated: 09/18/2001
-
-The Intel 80312 companion chip in the 80310 chipset contains an AAU. The
-AAU is capable of processing up to 8 data block sources and perform XOR
-operations on them. This unit is typically used to accelerated XOR
-operations utilized by RAID storage device drivers such as RAID 5. This
-API is designed to provide a set of functions to take adventage of the
-AAU. The AAU can also be used to transfer data blocks and used as a memory
-copier. The AAU transfer the memory faster than the operation performed by
-using CPU copy therefore it is recommended to use the AAU for memory copy.
-
-------------------
-int aau_request(u32 *aau_context, const char *device_id);
-This function allows the user the acquire the control of the the AAU. The
-function will return a context of AAU to the user and allocate
-an interrupt for the AAU. The user must pass the context as a parameter to
-various AAU API calls.
-
-int aau_queue_buffer(u32 aau_context, aau_head_t *listhead);
-This function starts the AAU operation. The user must create a SGL
-header with a SGL attached. The format is presented below. The SGL is
-built from kernel memory.
-
-/* hardware descriptor */
-typedef struct _aau_desc
-{
- u32 NDA; /* next descriptor address [READONLY] */
- u32 SAR[AAU_SAR_GROUP]; /* src addrs */
- u32 DAR; /* destination addr */
- u32 BC; /* byte count */
- u32 DC; /* descriptor control */
- u32 SARE[AAU_SAR_GROUP]; /* extended src addrs */
-} aau_desc_t;
-
-/* user SGL format */
-typedef struct _aau_sgl
-{
- aau_desc_t aau_desc; /* AAU HW Desc */
- u32 status; /* status of SGL [READONLY] */
- struct _aau_sgl *next; /* pointer to next SG [READONLY] */
- void *dest; /* destination addr */
- void *src[AAU_SAR_GROUP]; /* source addr[4] */
- void *ext_src[AAU_SAR_GROUP]; /* ext src addr[4] */
- u32 total_src; /* total number of source */
-} aau_sgl_t;
-
-/* header for user SGL */
-typedef struct _aau_head
-{
- u32 total; /* total descriptors allocated */
- u32 status; /* SGL status */
- aau_sgl_t *list; /* ptr to head of list */
- aau_callback_t callback; /* callback func ptr */
-} aau_head_t;
-
-
-The function will call aau_start() and start the AAU after it queues
-the SGL to the processing queue. When the function will either
-a. Sleep on the wait queue aau->wait_q if no callback has been provided, or
-b. Continue and then call the provided callback function when DMA interrupt
- has been triggered.
-
-int aau_suspend(u32 aau_context);
-Stops/Suspends the AAU operation
-
-int aau_free(u32 aau_context);
-Frees the ownership of AAU. Called when no longer need AAU service.
-
-aau_sgl_t * aau_get_buffer(u32 aau_context, int num_buf);
-This function obtains an AAU SGL for the user. User must specify the number
-of descriptors to be allocated in the chain that is returned.
-
-void aau_return_buffer(u32 aau_context, aau_sgl_t *list);
-This function returns all SGL back to the API after user is done.
-
-int aau_memcpy(void *dest, void *src, u32 size);
-This function is a short cut for user to do memory copy utilizing the AAU for
-better large block memory copy vs using the CPU. This is similar to using
-typical memcpy() call.
-
-* User is responsible for the source address(es) and the destination address.
- The source and destination should all be cached memory.
-
-
-
-void aau_test()
-{
- u32 aau;
- char dev_id[] = "AAU";
- int size = 2;
- int err = 0;
- aau_head_t *head;
- aau_sgl_t *list;
- u32 i;
- u32 result = 0;
- void *src, *dest;
-
- printk("Starting AAU test\n");
- if((err = aau_request(&aau, dev_id))<0)
- {
- printk("test - AAU request failed: %d\n", err);
- return;
- }
- else
- {
- printk("test - AAU request successful\n");
- }
-
- head = kmalloc(sizeof(aau_head_t), GFP_KERNEL);
- head->total = size;
- head->status = 0;
- head->callback = NULL;
-
- list = aau_get_buffer(aau, size);
- if(!list)
- {
- printk("Can't get buffers\n");
- return;
- }
- head->list = list;
-
- src = kmalloc(1024, GFP_KERNEL);
- dest = kmalloc(1024, GFP_KERNEL);
-
- while(list)
- {
- list->status = 0;
- list->aau_desc->SAR[0] = (u32)src;
- list->aau_desc->DAR = (u32)dest;
- list->aau_desc->BC = 1024;
-
- /* see iop310-aau.h for more DCR commands */
- list->aau_desc->DC = AAU_DCR_WRITE | AAU_DCR_BLKCTRL_1_DF;
- if(!list->next)
- {
- list->aau_desc->DC = AAU_DCR_IE;
- break;
- }
- list = list->next;
- }
-
- printk("test- Queueing buffer for AAU operation\n");
- err = aau_queue_buffer(aau, head);
- if(err >= 0)
- {
- printk("AAU Queue Buffer is done...\n");
- }
- else
- {
- printk("AAU Queue Buffer failed...: %d\n", err);
- }
-
-
-
-#if 1
- printk("freeing the AAU\n");
- aau_return_buffer(aau, head->list);
- aau_free(aau);
- kfree(src);
- kfree(dest);
- kfree((void *)head);
-#endif
-}
-
-All Disclaimers apply. Use this at your own discretion. Neither Intel nor I
-will be responsible if anything goes wrong. =)
-
-
-TODO
-____
-* Testing
-* Do zero-size AAU transfer/channel at init
- so all we have to do is chainining
-
+++ /dev/null
-Support functions forthe Intel 80310 DMA channels
-==================================================
-
-Dave Jiang <dave.jiang@intel.com>
-Last updated: 09/18/2001
-
-The Intel 80310 XScale chipset provides 3 DMA channels via the 80312 I/O
-companion chip. Two of them resides on the primary PCI bus and one on the
-secondary PCI bus.
-
-The DMA API provided is not compatible with the generic interface in the
-ARM tree unfortunately due to how the 80312 DMACs work. Hopefully some time
-in the near future a software interface can be done to bridge the differences.
-The DMA API has been modeled after Nicholas Pitre's SA11x0 DMA API therefore
-they will look somewhat similar.
-
-
-80310 DMA API
--------------
-
-int dma_request(dmach_t channel, const char *device_id);
-
-This function will attempt to allocate the channel depending on what the
-user requests:
-
-IOP310_DMA_P0: PCI Primary 1
-IOP310_DMA_P1: PCI Primary 2
-IOP310_DMA_S0: PCI Secondary 1
-/*EOF*/
-
-Once the user allocates the DMA channel it is owned until released. Although
-other users can also use the same DMA channel, but no new resources will be
-allocated. The function will return the allocated channel number if successful.
-
-int dma_queue_buffer(dmach_t channel, dma_sghead_t *listhead);
-
-The user will construct a SGL in the form of below:
-/*
- * Scattered Gather DMA List for user
- */
-typedef struct _dma_desc
-{
- u32 NDAR; /* next descriptor adress [READONLY] */
- u32 PDAR; /* PCI address */
- u32 PUADR; /* upper PCI address */
- u32 LADR; /* local address */
- u32 BC; /* byte count */
- u32 DC; /* descriptor control */
-} dma_desc_t;
-
-typedef struct _dma_sgl
-{
- dma_desc_t dma_desc; /* DMA descriptor */
- u32 status; /* descriptor status [READONLY] */
- u32 data; /* user defined data */
- struct _dma_sgl *next; /* next descriptor [READONLY] */
-} dma_sgl_t;
-
-/* dma sgl head */
-typedef struct _dma_head
-{
- u32 total; /* total elements in SGL */
- u32 status; /* status of sgl */
- u32 mode; /* read or write mode */
- dma_sgl_t *list; /* pointer to list */
- dma_callback_t callback; /* callback function */
-} dma_head_t;
-
-
-The user shall allocate user SGL elements by calling the function:
-dma_get_buffer(). This function will give the user an SGL element. The user
-is responsible for creating the SGL head however. The user is also
-responsible for allocating the memory for DMA data. The following code segment
-shows how a DMA operation can be performed:
-
-#include <asm/arch/iop310-dma.h>
-
-void dma_test(void)
-{
- char dev_id[] = "Primary 0";
- dma_head_t *sgl_head = NULL;
- dma_sgl_t *sgl = NULL;
- int err = 0;
- int channel = -1;
- u32 *test_ptr = 0;
- DECLARE_WAIT_QUEUE_HEAD(wait_q);
-
-
- *(IOP310_ATUCR) = (IOP310_ATUCR_PRIM_OUT_ENAB |
- IOP310_ATUCR_DIR_ADDR_ENAB);
-
- channel = dma_request(IOP310_DMA_P0, dev_id);
-
- sgl_head = (dma_head_t *)kmalloc(sizeof(dma_head_t), GFP_KERNEL);
- sgl_head->callback = NULL; /* no callback created */
- sgl_head->total = 2; /* allocating 2 DMA descriptors */
- sgl_head->mode = (DMA_MOD_WRITE);
- sgl_head->status = 0;
-
- /* now we get the two descriptors */
- sgl = dma_get_buffer(channel, 2);
-
- /* we set the header to point to the list we allocated */
- sgl_head->list = sgl;
-
- /* allocate 1k of DMA data */
- sgl->data = (u32)kmalloc(1024, GFP_KERNEL);
-
- /* Local address is physical */
- sgl->dma_desc.LADR = (u32)virt_to_phys(sgl->data);
-
- /* write to arbitrary location over the PCI bus */
- sgl->dma_desc.PDAR = 0x00600000;
- sgl->dma_desc.PUADR = 0;
- sgl->dma_desc.BC = 1024;
-
- /* set write & invalidate PCI command */
- sgl->dma_desc.DC = DMA_DCR_PCI_MWI;
- sgl->status = 0;
-
- /* set a pattern */
- memset(sgl->data, 0xFF, 1024);
-
- /* User's responsibility to keep buffers cached coherent */
- cpu_dcache_clean(sgl->data, sgl->data + 1024);
-
- sgl = sgl->next;
-
- sgl->data = (u32)kmalloc(1024, GFP_KERNEL);
- sgl->dma_desc.LADR = (u32)virt_to_phys(sgl->data);
- sgl->dma_desc.PDAR = 0x00610000;
- sgl->dma_desc.PUADR = 0;
- sgl->dma_desc.BC = 1024;
-
- /* second descriptor has interrupt flag enabled */
- sgl->dma_desc.DC = (DMA_DCR_PCI_MWI | DMA_DCR_IE);
-
- /* must set end of chain flag */
- sgl->status = DMA_END_CHAIN; /* DO NOT FORGET THIS!!!! */
-
- memset(sgl->data, 0x0f, 1024);
- /* User's responsibility to keep buffers cached coherent */
- cpu_dcache_clean(sgl->data, sgl->data + 1024);
-
- /* queuing the buffer, this function will sleep since no callback */
- err = dma_queue_buffer(channel, sgl_head);
-
- /* now we are woken from DMA complete */
-
- /* do data operations here */
-
- /* free DMA data if necessary */
-
- /* return the descriptors */
- dma_return_buffer(channel, sgl_head->list);
-
- /* free the DMA */
- dma_free(channel);
-
- kfree((void *)sgl_head);
-}
-
-
-dma_sgl_t * dma_get_buffer(dmach_t channel, int buf_num);
-
-This call allocates DMA descriptors for the user.
-
-
-void dma_return_buffer(dmach_t channel, dma_sgl_t *list);
-
-This call returns the allocated descriptors back to the API.
-
-
-int dma_suspend(dmach_t channel);
-
-This call suspends any DMA transfer on the given channel.
-
-
-
-int dma_resume(dmach_t channel);
-
-This call resumes a DMA transfer which would have been stopped through
-dma_suspend().
-
-
-int dma_flush_all(dmach_t channel);
-
-This completely flushes all queued buffers and on-going DMA transfers on a
-given channel. This is called when DMA channel errors have occurred.
-
-
-void dma_free(dmach_t channel);
-
-This clears all activities on a given DMA channel and releases it for future
-requests.
-
-
-
-Buffer Allocation
------------------
-It is the user's responsibility to allocate, free, and keep track of the
-allocated DMA data memory. Upon calling dma_queue_buffer() the user must
-relinquish the control of the buffers to the kernel and not change the
-state of the buffers that it has passed to the kernel. The user will regain
-the control of the buffers when it has been woken up by the bottom half of
-the DMA interrupt handler. The user can allocate cached buffers or non-cached
-via pci_alloc_consistent(). It is the user's responsibility to ensure that
-the data is cache coherent.
-
-*Reminder*
-The user is responsble to ensure the ATU is setup properly for DMA transfers.
-
-All Disclaimers apply. Use this at your own discretion. Neither Intel nor I
-will be responsible ifanything goes wrong.
+++ /dev/null
-Support functions for the Intel 80310 MU
-===========================================
-
-Dave Jiang <dave.jiang@intel.com>
-Last updated: 10/11/2001
-
-The messaging unit of the IOP310 contains 4 components and is utilized for
-passing messages between the PCI agents on the primary bus and the Intel(R)
-80200 CPU. The four components are:
-Messaging Component
-Doorbell Component
-Circular Queues Component
-Index Registers Component
-
-Messaging Component:
-Contains 4 32bit registers, 2 in and 2 out. Writing to the registers assert
-interrupt on the PCI bus or to the 80200 depend on incoming or outgoing.
-
-int mu_msg_request(u32 *mu_context);
-Request the usage of Messaging Component. mu_context is written back by the
-API. The MU context is passed to other Messaging calls as a parameter.
-
-int mu_msg_set_callback(u32 mu_context, u8 reg, mu_msg_cb_t func);
-Setup the callback function for incoming messages. Callback can be setup for
-outbound 0, 1, or both outbound registers.
-
-int mu_msg_post(u32 mu_context, u32 val, u8 reg);
-Posting a message in the val parameter. The reg parameter denotes whether
-to use register 0, 1.
-
-int mu_msg_free(u32 mu_context, u8 mode);
-Free the usage of messaging component. mode can be specified soft or hard. In
-hardmode all resources are unallocated.
-
-Doorbell Component:
-The doorbell registers contains 1 inbound and 1 outbound. Depending on the bits
-being set different interrupts are asserted.
-
-int mu_db_request(u32 *mu_context);
-Request the usage of the doorbell register.
-
-int mu_db_set_callback(u32 mu_context, mu_db_cb_t func);
-Setting up the inbound callback.
-
-void mu_db_ring(u32 mu_context, u32 mask);
-Write to the outbound db register with mask.
-
-int mu_db_free(u32 mu_context);
-Free the usage of doorbell component.
-
-Circular Queues Component:
-The circular queue component has 4 circular queues. Inbound post, inbound free,
-outbound post, outbound free. These queues are used to pass messages.
-
-int mu_cq_request(u32 *mu_context, u32 q_size);
-Request the usage of the queue. See code comment header for q_size. It tells
-the API how big of queues to setup.
-
-int mu_cq_inbound_init(u32 mu_context, mfa_list_t *list, u32 size,
- mu_cq_cb_t func);
-Init inbound queues. The user must provide a list of free message frames to
-be put in inbound free queue and the callback function to handle the inbound
-messages.
-
-int mu_cq_enable(u32 mu_context);
-Enables the circular queues mechanism. Called once all the setup functions
-are called.
-
-u32 mu_cq_get_frame(u32 mu_context);
-Obtain the address of an outbound free frame for the user.
-
-int mu_cq_post_frame(u32 mu_context, u32 mfa);
-The user can post the frame once getting the frame and put information in the
-frame.
-
-int mu_cq_free(u32 mu_context);
-Free the usage of circular queues mechanism.
-
-Index Registers Component:
-The index register provides the mechanism to receive inbound messages.
-
-int mu_ir_request(u32 *mu_context);
-Request of Index Register component usage.
-
-int mu_ir_set_callback(u32 mu_context, mu_ir_cb_t callback);
-Setting up callback for inbound messages. The callback will receive the
-value of the register that IAR offsets to.
-
-int mu_ir_free(u32 mu_context);
-Free the usage of Index Registers component.
-
-void mu_set_irq_threshold(u32 mu_context, int thresh);
-Setup the IRQ threshold before relinquish processing in IRQ space. Default
-is set at 10 loops.
-
-
-*NOTE: Example of host driver that utilize the MU can be found in the Linux I2O
-driver. Specifically i2o_pci and some functions of i2o_core. The I2O driver
-only utilize the circular queues mechanism. The other 3 components are simple
-enough that they can be easily setup. The MU API provides no flow control for
-the messaging mechanism. Flow control of the messaging needs to be established
-by a higher layer of software on the IOP or the host driver.
-
-All Disclaimers apply. Use this at your own discretion. Neither Intel nor I
-will be responsible if anything goes wrong. =)
-
-
-TODO
-____
-
+++ /dev/null
-
-Intel's XScale Microarchitecture 80312 companion processor provides a
-Performance Monitoring Unit (PMON) that can be utilized to provide
-information that can be useful for fine tuning of code. This text
-file describes the API that's been developed for use by Linux kernel
-programmers. Note that to get the most usage out of the PMON,
-I highly reccomend getting the XScale reference manual from Intel[1]
-and looking at chapter 12.
-
-To use the PMON, you must #include <asm-arm/arch-iop310/pmon.h> in your
-source file.
-
-Since there's only one PMON, only one user can currently use the PMON
-at a given time. To claim the PMON for usage, call iop310_pmon_claim() which
-returns an identifier. When you are done using the PMON, call
-iop310_pmon_release() with the id you were given earlier.
-
-The PMON consists of 14 registers that can be used for performance measurements.
-By combining different statistics, you can derive complex performance metrics.
-
-To start the PMON, just call iop310_pmon_start(mode). Mode tells the PMON what
-statistics to capture and can each be one of:
-
- IOP310_PMU_MODE0
- Performance Monitoring Disabled
-
- IOP310_PMU_MODE1
- Primary PCI bus and internal agents (bridge, dma Ch0, dam Ch1, patu)
-
- IOP310_PMU_MODE2
- Secondary PCI bus and internal agents (bridge, dma Ch0, dam Ch1, patu)
-
- IOP310_PMU_MODE3
- Secondary PCI bus and internal agents (external masters 0..2 and Intel
- 80312 I/O companion chip)
-
- IOP310_PMU_MODE4
- Secondary PCI bus and internal agents (external masters 3..5 and Intel
- 80312 I/O companion chip)
-
- IOP310_PMU_MODE5
- Intel 80312 I/O companion chip internal bus, DMA Channels and Application
- Accelerator
-
- IOP310_PMU_MODE6
- Intel 80312 I/O companion chip internal bus, PATU, SATU and Intel 80200
- processor
-
- IOP310_PMU_MODE7
- Intel 80312 I/O companion chip internal bus, Primary PCI bus, Secondary
- PCI bus and Secondary PCI agents (external masters 0..5 & Intel 80312 I/O
- companion chip)
-
-To get the results back, call iop310_pmon_stop(&results) where results is
-defined as follows:
-
-typedef struct _iop310_pmon_result
-{
- u32 timestamp; /* Global Time Stamp Register */
- u32 timestamp_overflow; /* Time Stamp overflow count */
- u32 event_count[14]; /* Programmable Event Counter
- Registers 1-14 */
- u32 event_overflow[14]; /* Overflow counter for PECR1-14 */
-} iop310_pmon_res_t;
-
-
---
-This code is still under development, so please feel free to send patches,
-questions, comments, etc to me.
-
-Deepak Saxena <dsaxena@mvista.com>
+++ /dev/null
-
-Intel's XScale Microarchitecture provides support for locking of data
-and instructions into the appropriate caches. This file provides
-an overview of the API that has been developed to take advantage of this
-feature from kernel space. Note that there is NO support for user space
-cache locking.
-
-For example usage of this code, grab:
-
- ftp://source.mvista.com/pub/xscale/cache-test.c
-
-If you have any questions, comments, patches, etc, please contact me.
-
-Deepak Saxena <dsaxena@mvista.com>
-
-API DESCRIPTION
-
-
-I. Header File
-
- #include <asm/xscale-lock.h>
-
-II. Cache Capability Discovery
-
- SYNOPSIS
-
- int cache_query(u8 cache_type,
- struct cache_capabilities *pcache);
-
- struct cache_capabilities
- {
- u32 flags; /* Flags defining capabilities */
- u32 cache_size; /* Cache size in K (1024 bytes) */
- u32 max_lock; /* Maximum lockable region in K */
- }
-
- /*
- * Flags
- */
-
- /*
- * Bit 0: Cache lockability
- * Bits 1-31: Reserved for future use
- */
- #define CACHE_LOCKABLE 0x00000001 /* Cache can be locked */
-
- /*
- * Cache Types
- */
- #define ICACHE 0x00
- #define DCACHE 0x01
-
- DESCRIPTION
-
- This function fills out the pcache capability identifier for the
- requested cache. cache_type is either DCACHE or ICACHE. This
- function is not very useful at the moment as all XScale CPU's
- have the same size Cache, but is is provided for future XScale
- based processors that may have larger cache sizes.
-
- RETURN VALUE
-
- This function returns 0 if no error occurs, otherwise it returns
- a negative, errno compatible value.
-
- -EIO Unknown hardware error
-
-III. Cache Locking
-
- SYNOPSIS
-
- int cache_lock(void *addr, u32 len, u8 cache_type, const char *desc);
-
- DESCRIPTION
-
- This function locks a physically contigous portion of memory starting
- at the virtual address pointed to by addr into the cache referenced
- by cache_type.
-
- The address of the data/instruction that is to be locked must be
- aligned on a cache line boundary (L1_CACHE_ALIGNEMENT).
-
- The desc parameter is an optional (pass NULL if not used) human readable
- descriptor of the locked memory region that is used by the cache
- management code to build the /proc/cache_locks table.
-
- Note that this function does not check whether the address is valid
- or not before locking it into the cache. That duty is up to the
- caller. Also, it does not check for duplicate or overlaping
- entries.
-
- RETURN VALUE
-
- If the function is successful in locking the entry into cache, a
- zero is returned.
-
- If an error occurs, an appropriate error value is returned.
-
- -EINVAL The memory address provided was not cache line aligned
- -ENOMEM Could not allocate memory to complete operation
- -ENOSPC Not enough space left on cache to lock in requested region
- -EIO Unknown error
-
-III. Cache Unlocking
-
- SYNOPSIS
-
- int cache_unlock(void *addr)
-
- DESCRIPTION
-
- This function unlocks a portion of memory that was previously locked
- into either the I or D cache.
-
- RETURN VALUE
-
- If the entry is cleanly unlocked from the cache, a 0 is returned.
- In the case of an error, an appropriate error is returned.
-
- -ENOENT No entry with given address associated with this cache
- -EIO Unknown error
-
-
+++ /dev/null
-
-Intel's XScale Microarchitecture processors provide a Performance
-Monitoring Unit (PMU) that can be utilized to provide information
-that can be useful for fine tuning of code. This text file describes
-the API that's been developed for use by Linux kernel programmers.
-When I have some extra time on my hand, I will extend the code to
-provide support for user mode performance monitoring (which is
-probably much more useful). Note that to get the most usage out
-of the PMU, I highly reccomend getting the XScale reference manual
-from Intel and looking at chapter 12.
-
-To use the PMU, you must #include <asm/xscale-pmu.h> in your source file.
-
-Since there's only one PMU, only one user can currently use the PMU
-at a given time. To claim the PMU for usage, call pmu_claim() which
-returns an identifier. When you are done using the PMU, call
-pmu_release() with the identifier that you were given by pmu_claim.
-
-In addition, the PMU can only be used on XScale based systems that
-provide an external timer. Systems that the PMU is currently supported
-on are:
-
- - Cyclone IQ80310
-
-Before delving into how to use the PMU code, let's do a quick overview
-of the PMU itself. The PMU consists of three registers that can be
-used for performance measurements. The first is the CCNT register with
-provides the number of clock cycles elapsed since the PMU was started.
-The next two register, PMN0 and PMN1, are eace user programmable to
-provide 1 of 20 different performance statistics. By combining different
-statistics, you can derive complex performance metrics.
-
-To start the PMU, just call pmu_start(pm0, pmn1). pmn0 and pmn1 tell
-the PMU what statistics to capture and can each be one of:
-
-EVT_ICACHE_MISS
- Instruction fetches requiring access to external memory
-
-EVT_ICACHE_NO_DELIVER
- Instruction cache could not deliver an instruction. Either an
- ICACHE miss or an instruction TLB miss.
-
-EVT_ICACHE_DATA_STALL
- Stall in execution due to a data dependency. This counter is
- incremented each cycle in which the condition is present.
-
-EVT_ITLB_MISS
- Instruction TLB miss
-
-EVT_DTLB_MISS
- Data TLB miss
-
-EVT_BRANCH
- A branch instruction was executed and it may or may not have
- changed program flow
-
-EVT_BRANCH_MISS
- A branch (B or BL instructions only) was mispredicted
-
-EVT_INSTRUCTION
- An instruction was executed
-
-EVT_DCACHE_FULL_STALL
- Stall because data cache buffers are full. Incremented on every
- cycle in which condition is present.
-
-EVT_DCACHE_FULL_STALL_CONTIG
- Stall because data cache buffers are full. Incremented on every
- cycle in which condition is contigous.
-
-EVT_DCACHE_ACCESS
- Data cache access (data fetch)
-
-EVT_DCACHE_MISS
- Data cache miss
-
-EVT_DCACHE_WRITE_BACK
- Data cache write back. This counter is incremented for every
- 1/2 line (four words) that are written back.
-
-EVT_PC_CHANGED
- Software changed the PC. This is incremented only when the
- software changes the PC and there is no mode change. For example,
- a MOV instruction that targets the PC would increment the counter.
- An SWI would not as it triggers a mode change.
-
-EVT_BCU_REQUEST
- The Bus Control Unit(BCU) received a request from the core
-
-EVT_BCU_FULL
- The BCU request queue if full. A high value for this event means
- that the BCU is often waiting for to complete on the external bus.
-
-EVT_BCU_DRAIN
- The BCU queues were drained due to either a Drain Write Buffer
- command or an I/O transaction for a page that was marked as
- uncacheable and unbufferable.
-
-EVT_BCU_ECC_NO_ELOG
- The BCU detected an ECC error on the memory bus but noe ELOG
- register was available to to log the errors.
-
-EVT_BCU_1_BIT_ERR
- The BCU detected a 1-bit error while reading from the bus.
-
-EVT_RMW
- An RMW cycle occurred due to narrow write on ECC protected memory.
-
-To get the results back, call pmu_stop(&results) where results is defined
-as a struct pmu_results:
-
- struct pmu_results
- {
- u32 ccnt; /* Clock Counter Register */
- u32 ccnt_of; /
- u32 pmn0; /* Performance Counter Register 0 */
- u32 pmn0_of;
- u32 pmn1; /* Performance Counter Register 1 */
- u32 pmn1_of;
- };
-
-Pretty simple huh? Following are some examples of how to get some commonly
-wanted numbers out of the PMU data. Note that since you will be dividing
-things, this isn't super useful from the kernel and you need to printk the
-data out to syslog. See [1] for more examples.
-
-Instruction Cache Efficiency
-
- pmu_start(EVT_INSTRUCTION, EVT_ICACHE_MISS);
- ...
- pmu_stop(&results);
-
- icache_miss_rage = results.pmn1 / results.pmn0;
- cycles_per_instruction = results.ccnt / results.pmn0;
-
-Data Cache Efficiency
-
- pmu_start(EVT_DCACHE_ACCESS, EVT_DCACHE_MISS);
- ...
- pmu_stop(&results);
-
- dcache_miss_rage = results.pmn1 / results.pmn0;
-
-Instruction Fetch Latency
-
- pmu_start(EVT_ICACHE_NO_DELIVER, EVT_ICACHE_MISS);
- ...
- pmu_stop(&results);
-
- average_stall_waiting_for_instruction_fetch =
- results.pmn0 / results.pmn1;
-
- percent_stall_cycles_due_to_instruction_fetch =
- results.pmn0 / results.ccnt;
-
-
-ToDo:
-
-- Add support for usermode PMU usage. This might require hooking into
- the scheduler so that we pause the PMU when the task that requested
- statistics is scheduled out.
-
---
-This code is still under development, so please feel free to send patches,
-questions, comments, etc to me.
-
-Deepak Saxena <dsaxena@mvista.com>
-
+++ /dev/null
-
-Intel's XScale Microarchitecture provides support for locking of TLB
-entries in both the instruction and data TLBs. This file provides
-an overview of the API that has been developed to take advantage of this
-feature from kernel space. Note that there is NO support for user space.
-
-In general, this feature should be used in conjunction with locking
-data or instructions into the appropriate caches. See the file
-cache-lock.txt in this directory.
-
-If you have any questions, comments, patches, etc, please contact me.
-
-Deepak Saxena <dsaxena@mvista.com>
-
-
-API DESCRIPTION
-
-I. Header file
-
- #include <asm/xscale-lock.h>
-
-II. Locking an entry into the TLB
-
- SYNOPSIS
-
- xscale_tlb_lock(u8 tlb_type, u32 addr);
-
- /*
- * TLB types
- */
- #define ITLB 0x0
- #define DTLB 0x1
-
- DESCRIPTION
-
- This function locks the virtual to physical mapping for virtual
- address addr into the requested TLB.
-
- RETURN VALUE
-
- If the entry is properly locked into the TLB, a 0 is returned.
- In case of an error, an appropriate error is returned.
-
- -ENOSPC No more entries left in the TLB
- -EIO Unknown error
-
-III. Unlocking an entry from a TLB
-
- SYNOPSIS
-
- xscale_tlb_unlock(u8 tlb_type, u32 addr);
-
- DESCRIPTION
-
- This function unlocks the entry for virtual address addr from the
- specified cache.
-
- RETURN VALUE
-
- If the TLB entry is properly unlocked, a 0 is returned.
- In case of an error, an appropriate error is returned.
-
- -ENOENT No entry for given address in specified TLB
-
+++ /dev/null
-Anticipatory IO scheduler
--------------------------
-Nick Piggin <piggin@cyberone.com.au> 13 Sep 2003
-
-Attention! Database servers, especially those using "TCQ" disks should
-investigate performance with the 'deadline' IO scheduler. Any system with high
-disk performance requirements should do so, in fact.
-
-If you see unusual performance characteristics of your disk systems, or you
-see big performance regressions versus the deadline scheduler, please email
-me. Database users don't bother unless you're willing to test a lot of patches
-from me ;) its a known issue.
-
-Also, users with hardware RAID controllers, doing striping, may find
-highly variable performance results with using the as-iosched. The
-as-iosched anticipatory implementation is based on the notion that a disk
-device has only one physical seeking head. A striped RAID controller
-actually has a head for each physical device in the logical RAID device.
-
-However, setting the antic_expire (see tunable parameters below) produces
-very similar behavior to the deadline IO scheduler.
-
-
-Selecting IO schedulers
------------------------
-To choose IO schedulers at boot time, use the argument 'elevator=deadline'.
-'noop' and 'as' (the default) are also available. IO schedulers are assigned
-globally at boot time only presently.
-
-
-Anticipatory IO scheduler Policies
-----------------------------------
-The as-iosched implementation implements several layers of policies
-to determine when an IO request is dispatched to the disk controller.
-Here are the policies outlined, in order of application.
-
-1. one-way Elevator algorithm.
-
-The elevator algorithm is similar to that used in deadline scheduler, with
-the addition that it allows limited backward movement of the elevator
-(i.e. seeks backwards). A seek backwards can occur when choosing between
-two IO requests where one is behind the elevator's current position, and
-the other is in front of the elevator's position. If the seek distance to
-the request in back of the elevator is less than half the seek distance to
-the request in front of the elevator, then the request in back can be chosen.
-Backward seeks are also limited to a maximum of MAXBACK (1024*1024) sectors.
-This favors forward movement of the elevator, while allowing opportunistic
-"short" backward seeks.
-
-2. FIFO expiration times for reads and for writes.
-
-This is again very similar to the deadline IO scheduler. The expiration
-times for requests on these lists is tunable using the parameters read_expire
-and write_expire discussed below. When a read or a write expires in this way,
-the IO scheduler will interrupt its current elevator sweep or read anticipation
-to service the expired request.
-
-3. Read and write request batching
-
-A batch is a collection of read requests or a collection of write
-requests. The as scheduler alternates dispatching read and write batches
-to the driver. In the case a read batch, the scheduler submits read
-requests to the driver as long as there are read requests to submit, and
-the read batch time limit has not been exceeded (read_batch_expire).
-The read batch time limit begins counting down only when there are
-competing write requests pending.
-
-In the case of a write batch, the scheduler submits write requests to
-the driver as long as there are write requests available, and the
-write batch time limit has not been exceeded (write_batch_expire).
-However, the length of write batches will be gradually shortened
-when read batches frequently exceed their time limit.
-
-When changing between batch types, the scheduler waits for all requests
-from the previous batch to complete before scheduling requests for the
-next batch.
-
-The read and write fifo expiration times described in policy 2 above
-are checked only when in scheduling IO of a batch for the corresponding
-(read/write) type. So for example, the read FIFO timeout values are
-tested only during read batches. Likewise, the write FIFO timeout
-values are tested only during write batches. For this reason,
-it is generally not recommended for the read batch time
-to be longer than the write expiration time, nor for the write batch
-time to exceed the read expiration time (see tunable parameters below).
-
-When the IO scheduler changes from a read to a write batch,
-it begins the elevator from the request that is on the head of the
-write expiration FIFO. Likewise, when changing from a write batch to
-a read batch, scheduler begins the elevator from the first entry
-on the read expiration FIFO.
-
-4. Read anticipation.
-
-Read anticipation occurs only when scheduling a read batch.
-This implementation of read anticipation allows only one read request
-to be dispatched to the disk controller at a time. In
-contrast, many write requests may be dispatched to the disk controller
-at a time during a write batch. It is this characteristic that can make
-the anticipatory scheduler perform anomalously with controllers supporting
-TCQ, or with hardware striped RAID devices. Setting the antic_expire
-queue paramter (see below) to zero disables this behavior, and the anticipatory
-scheduler behaves essentially like the deadline scheduler.
-
-When read anticipation is enabled (antic_expire is not zero), reads
-are dispatched to the disk controller one at a time.
-At the end of each read request, the IO scheduler examines its next
-candidate read request from its sorted read list. If that next request
-is from the same process as the request that just completed,
-or if the next request in the queue is "very close" to the
-just completed request, it is dispatched immediately. Otherwise,
-statistics (average think time, average seek distance) on the process
-that submitted the just completed request are examined. If it seems
-likely that that process will submit another request soon, and that
-request is likely to be near the just completed request, then the IO
-scheduler will stop dispatching more read requests for up time (antic_expire)
-milliseconds, hoping that process will submit a new request near the one
-that just completed. If such a request is made, then it is dispatched
-immediately. If the antic_expire wait time expires, then the IO scheduler
-will dispatch the next read request from the sorted read queue.
-
-To decide whether an anticipatory wait is worthwhile, the scheduler
-maintains statistics for each process that can be used to compute
-mean "think time" (the time between read requests), and mean seek
-distance for that process. One observation is that these statistics
-are associated with each process, but those statistics are not associated
-with a specific IO device. So for example, if a process is doing IO
-on several file systems on separate devices, the statistics will be
-a combination of IO behavior from all those devices.
-
-
-Tuning the anticipatory IO scheduler
-------------------------------------
-When using 'as', the anticipatory IO scheduler there are 5 parameters under
-/sys/block/*/iosched/. All are units of milliseconds.
-
-The parameters are:
-* read_expire
- Controls how long until a read request becomes "expired". It also controls the
- interval between which expired requests are served, so set to 50, a request
- might take anywhere < 100ms to be serviced _if_ it is the next on the
- expired list. Obviously request expiration strategies won't make the disk
- go faster. The result basically equates to the timeslice a single reader
- gets in the presence of other IO. 100*((seek time / read_expire) + 1) is
- very roughly the % streaming read efficiency your disk should get with
- multiple readers.
-
-* read_batch_expire
- Controls how much time a batch of reads is given before pending writes are
- served. A higher value is more efficient. This might be set below read_expire
- if writes are to be given higher priority than reads, but reads are to be
- as efficient as possible when there are no writes. Generally though, it
- should be some multiple of read_expire.
-
-* write_expire, and
-* write_batch_expire are equivalent to the above, for writes.
-
-* antic_expire
- Controls the maximum amount of time we can anticipate a good read (one
- with a short seek distance from the most recently completed request) before
- giving up. Many other factors may cause anticipation to be stopped early,
- or some processes will not be "anticipated" at all. Should be a bit higher
- for big seek time devices though not a linear correspondence - most
- processes have only a few ms thinktime.
-
+++ /dev/null
-Deadline IO scheduler tunables
-==============================
-
-This little file attempts to document how the deadline io scheduler works.
-In particular, it will clarify the meaning of the exposed tunables that may be
-of interest to power users.
-
-Each io queue has a set of io scheduler tunables associated with it. These
-tunables control how the io scheduler works. You can find these entries
-in:
-
-/sys/block/<device>/iosched
-
-assuming that you have sysfs mounted on /sys. If you don't have sysfs mounted,
-you can do so by typing:
-
-# mount none /sys -t sysfs
-
-
-********************************************************************************
-
-
-read_expire (in ms)
------------
-
-The goal of the deadline io scheduler is to attempt to guarentee a start
-service time for a request. As we focus mainly on read latencies, this is
-tunable. When a read request first enters the io scheduler, it is assigned
-a deadline that is the current time + the read_expire value in units of
-miliseconds.
-
-
-write_expire (in ms)
------------
-
-Similar to read_expire mentioned above, but for writes.
-
-
-fifo_batch
-----------
-
-When a read request expires its deadline, we must move some requests from
-the sorted io scheduler list to the block device dispatch queue. fifo_batch
-controls how many requests we move, based on the cost of each request. A
-request is either qualified as a seek or a stream. The io scheduler knows
-the last request that was serviced by the drive (or will be serviced right
-before this one). See seek_cost and stream_unit.
-
-
-write_starved (number of dispatches)
--------------
-
-When we have to move requests from the io scheduler queue to the block
-device dispatch queue, we always give a preference to reads. However, we
-don't want to starve writes indefinitely either. So writes_starved controls
-how many times we give preference to reads over writes. When that has been
-done writes_starved number of times, we dispatch some writes based on the
-same criteria as reads.
-
-
-front_merges (bool)
-------------
-
-Sometimes it happens that a request enters the io scheduler that is contigious
-with a request that is already on the queue. Either it fits in the back of that
-request, or it fits at the front. That is called either a back merge candidate
-or a front merge candidate. Due to the way files are typically laid out,
-back merges are much more common than front merges. For some work loads, you
-may even know that it is a waste of time to spend any time attempting to
-front merge requests. Setting front_merges to 0 disables this functionality.
-Front merges may still occur due to the cached last_merge hint, but since
-that comes at basically 0 cost we leave that on. We simply disable the
-rbtree front sector lookup when the io scheduler merge function is called.
-
-
-Nov 11 2002, Jens Axboe <axboe@suse.de>
-
-
+++ /dev/null
-dm-io
-=====
-
-Dm-io provides synchronous and asynchronous I/O services. There are three
-types of I/O services available, and each type has a sync and an async
-version.
-
-The user must set up an io_region structure to describe the desired location
-of the I/O. Each io_region indicates a block-device along with the starting
-sector and size of the region.
-
- struct io_region {
- struct block_device *bdev;
- sector_t sector;
- sector_t count;
- };
-
-Dm-io can read from one io_region or write to one or more io_regions. Writes
-to multiple regions are specified by an array of io_region structures.
-
-The first I/O service type takes a list of memory pages as the data buffer for
-the I/O, along with an offset into the first page.
-
- struct page_list {
- struct page_list *next;
- struct page *page;
- };
-
- int dm_io_sync(unsigned int num_regions, struct io_region *where, int rw,
- struct page_list *pl, unsigned int offset,
- unsigned long *error_bits);
- int dm_io_async(unsigned int num_regions, struct io_region *where, int rw,
- struct page_list *pl, unsigned int offset,
- io_notify_fn fn, void *context);
-
-The second I/O service type takes an array of bio vectors as the data buffer
-for the I/O. This service can be handy if the caller has a pre-assembled bio,
-but wants to direct different portions of the bio to different devices.
-
- int dm_io_sync_bvec(unsigned int num_regions, struct io_region *where,
- int rw, struct bio_vec *bvec,
- unsigned long *error_bits);
- int dm_io_async_bvec(unsigned int num_regions, struct io_region *where,
- int rw, struct bio_vec *bvec,
- io_notify_fn fn, void *context);
-
-The third I/O service type takes a pointer to a vmalloc'd memory buffer as the
-data buffer for the I/O. This service can be handy if the caller needs to do
-I/O to a large region but doesn't want to allocate a large number of individual
-memory pages.
-
- int dm_io_sync_vm(unsigned int num_regions, struct io_region *where, int rw,
- void *data, unsigned long *error_bits);
- int dm_io_async_vm(unsigned int num_regions, struct io_region *where, int rw,
- void *data, io_notify_fn fn, void *context);
-
-Callers of the asynchronous I/O services must include the name of a completion
-callback routine and a pointer to some context data for the I/O.
-
- typedef void (*io_notify_fn)(unsigned long error, void *context);
-
-The "error" parameter in this callback, as well as the "*error" parameter in
-all of the synchronous versions, is a bitset (instead of a simple error value).
-In the case of an write-I/O to multiple regions, this bitset allows dm-io to
-indicate success or failure on each individual region.
-
-Before using any of the dm-io services, the user should call dm_io_get()
-and specify the number of pages they expect to perform I/O on concurrently.
-Dm-io will attempt to resize its mempool to make sure enough pages are
-always available in order to avoid unnecessary waiting while performing I/O.
-
-When the user is finished using the dm-io services, they should call
-dm_io_put() and specify the same number of pages that were given on the
-dm_io_get() call.
-
+++ /dev/null
-kcopyd
-======
-
-Kcopyd provides the ability to copy a range of sectors from one block-device
-to one or more other block-devices, with an asynchronous completion
-notification. It is used by dm-snapshot and dm-mirror.
-
-Users of kcopyd must first create a client and indicate how many memory pages
-to set aside for their copy jobs. This is done with a call to
-kcopyd_client_create().
-
- int kcopyd_client_create(unsigned int num_pages,
- struct kcopyd_client **result);
-
-To start a copy job, the user must set up io_region structures to describe
-the source and destinations of the copy. Each io_region indicates a
-block-device along with the starting sector and size of the region. The source
-of the copy is given as one io_region structure, and the destinations of the
-copy are given as an array of io_region structures.
-
- struct io_region {
- struct block_device *bdev;
- sector_t sector;
- sector_t count;
- };
-
-To start the copy, the user calls kcopyd_copy(), passing in the client
-pointer, pointers to the source and destination io_regions, the name of a
-completion callback routine, and a pointer to some context data for the copy.
-
- int kcopyd_copy(struct kcopyd_client *kc, struct io_region *from,
- unsigned int num_dests, struct io_region *dests,
- unsigned int flags, kcopyd_notify_fn fn, void *context);
-
- typedef void (*kcopyd_notify_fn)(int read_err, unsigned int write_err,
- void *context);
-
-When the copy completes, kcopyd will call the user's completion routine,
-passing back the user's context pointer. It will also indicate if a read or
-write error occurred during the copy.
-
-When a user is done with all their copy jobs, they should call
-kcopyd_client_destroy() to delete the kcopyd client, which will release the
-associated memory pages.
-
- void kcopyd_client_destroy(struct kcopyd_client *kc);
-
+++ /dev/null
-dm-linear
-=========
-
-Device-Mapper's "linear" target maps a linear range of the Device-Mapper
-device onto a linear range of another device. This is the basic building
-block of logical volume managers.
-
-Parameters: <dev path> <offset>
- <dev path>: Full pathname to the underlying block-device, or a
- "major:minor" device-number.
- <offset>: Starting sector within the device.
-
-
-Example scripts
-===============
-[[
-#!/bin/sh
-# Create an identity mapping for a device
-echo "0 `blockdev --getsize $1` linear $1 0" | dmsetup create identity
-]]
-
-
-[[
-#!/bin/sh
-# Join 2 devices together
-size1=`blockdev --getsize $1`
-size2=`blockdev --getsize $2`
-echo "0 $size1 linear $1 0
-$size1 $size2 linear $2 0" | dmsetup create joined
-]]
-
-
-[[
-#!/usr/bin/perl -w
-# Split a device into 4M chunks and then join them together in reverse order.
-
-my $name = "reverse";
-my $extent_size = 4 * 1024 * 2;
-my $dev = $ARGV[0];
-my $table = "";
-my $count = 0;
-
-if (!defined($dev)) {
- die("Please specify a device.\n");
-}
-
-my $dev_size = `blockdev --getsize $dev`;
-my $extents = int($dev_size / $extent_size) -
- (($dev_size % $extent_size) ? 1 : 0);
-
-while ($extents > 0) {
- my $this_start = $count * $extent_size;
- $extents--;
- $count++;
- my $this_offset = $extents * $extent_size;
-
- $table .= "$this_start $extent_size linear $dev $this_offset\n";
-}
-
-`echo \"$table\" | dmsetup create $name`;
-]]
+++ /dev/null
-dm-stripe
-=========
-
-Device-Mapper's "striped" target is used to create a striped (i.e. RAID-0)
-device across one or more underlying devices. Data is written in "chunks",
-with consecutive chunks rotating among the underlying devices. This can
-potentially provide improved I/O throughput by utilizing several physical
-devices in parallel.
-
-Parameters: <num devs> <chunk size> [<dev path> <offset>]+
- <num devs>: Number of underlying devices.
- <chunk size>: Size of each chunk of data. Must be a power-of-2 and at
- least as large as the system's PAGE_SIZE.
- <dev path>: Full pathname to the underlying block-device, or a
- "major:minor" device-number.
- <offset>: Starting sector within the device.
-
-One or more underlying devices can be specified. The striped device size must
-be a multiple of the chunk size and a multiple of the number of underlying
-devices.
-
-
-Example scripts
-===============
-
-[[
-#!/usr/bin/perl -w
-# Create a striped device across any number of underlying devices. The device
-# will be called "stripe_dev" and have a chunk-size of 128k.
-
-my $chunk_size = 128 * 2;
-my $dev_name = "stripe_dev";
-my $num_devs = @ARGV;
-my @devs = @ARGV;
-my ($min_dev_size, $stripe_dev_size, $i);
-
-if (!$num_devs) {
- die("Specify at least one device\n");
-}
-
-$min_dev_size = `blockdev --getsize $devs[0]`;
-for ($i = 1; $i < $num_devs; $i++) {
- my $this_size = `blockdev --getsize $devs[$i]`;
- $min_dev_size = ($min_dev_size < $this_size) ?
- $min_dev_size : $this_size;
-}
-
-$stripe_dev_size = $min_dev_size * $num_devs;
-$stripe_dev_size -= $stripe_dev_size % ($chunk_size * $num_devs);
-
-$table = "0 $stripe_dev_size striped $num_devs $chunk_size";
-for ($i = 0; $i < $num_devs; $i++) {
- $table .= " $devs[$i] 0";
-}
-
-`echo $table | dmsetup create $dev_name`;
-]]
-
+++ /dev/null
-dm-zero
-=======
-
-Device-Mapper's "zero" target provides a block-device that always returns
-zero'd data on reads and silently drops writes. This is similar behavior to
-/dev/zero, but as a block-device instead of a character-device.
-
-Dm-zero has no target-specific parameters.
-
-One very interesting use of dm-zero is for creating "sparse" devices in
-conjunction with dm-snapshot. A sparse device reports a device-size larger
-than the amount of actual storage space available for that device. A user can
-write data anywhere within the sparse device and read it back like a normal
-device. Reads to previously unwritten areas will return a zero'd buffer. When
-enough data has been written to fill up the actual storage space, the sparse
-device is deactivated. This can be very useful for testing device and
-filesystem limitations.
-
-To create a sparse device, start by creating a dm-zero device that's the
-desired size of the sparse device. For this example, we'll assume a 10TB
-sparse device.
-
-TEN_TERABYTES=`expr 10 \* 1024 \* 1024 \* 1024 \* 2` # 10 TB in sectors
-echo "0 $TEN_TERABYTES zero" | dmsetup create zero1
-
-Then create a snapshot of the zero device, using any available block-device as
-the COW device. The size of the COW device will determine the amount of real
-space available to the sparse device. For this example, we'll assume /dev/sdb1
-is an available 10GB partition.
-
-echo "0 $TEN_TERABYTES snapshot /dev/mapper/zero1 /dev/sdb1 p 128" | \
- dmsetup create sparse1
-
-This will create a 10TB sparse device called /dev/mapper/sparse1 that has
-10GB of actual storage space available. If more than 10GB of data is written
-to this device, it will start returning I/O errors.
-
+++ /dev/null
-
-What is sisfb?
-==============
-
-sisfb is a framebuffer device driver for SiS (Silicon Integrated Systems)
-graphics chips. Supported are:
-
-- SiS 300 series: SiS 300/305, 540, 630(S), 730(S)
-- SiS 315 series: SiS 315/H/PRO, 55x, (M)65x, 740, (M)661(F/M)X, (M)741(GX)
-- SiS 330 series: SiS 330 ("Xabre"), (M)760
-
-
-Why do I need a framebuffer driver?
-===================================
-
-sisfb is eg. useful if you want a high-resolution text console. Besides that,
-sisfb is required to run DirectFB (which comes with an additional, dedicated
-driver for the 315 series).
-
-On the 300 series, sisfb on kernels older than 2.6.3 furthermore plays an
-important role in connection with DRM/DRI: Sisfb manages the memory heap
-used by DRM/DRI for 3D texture and other data. This memory management is
-required for using DRI/DRM.
-
-Kernels >= around 2.6.3 do not need sisfb any longer for DRI/DRM memory
-management. The SiS DRM driver has been updated and features a memory manager
-of its own (which will be used if sisfb is not compiled). So unless you want
-a graphical console, you don't need sisfb on kernels >=2.6.3.
-
-Sidenote: Since this seems to be a commonly made mistake: sisfb and vesafb
-cannot be active at the same time! Do only select one of them in your kernel
-configuration.
-
-
-How are parameters passed to sisfb?
-===================================
-
-Well, it depends: If compiled statically into the kernel, use lilo's append
-statement to add the parameters to the kernel command line. Please see lilo's
-(or GRUB's) documentation for more information. If sisfb is a kernel module,
-parameters are given with the modprobe (or insmod) command.
-
-Example for sisfb as part of the static kernel: Add the following line to your
-lilo.conf:
-
- append="video=sisfb:mode:1024x768x16,mem:12288,rate:75"
-
-Example for sisfb as a module: Start sisfb by typing
-
- modprobe sisfb mode=1024x768x16 rate=75 mem=12288
-
-A common mistake is that folks use a wrong parameter format when using the
-driver compiled into the kernel. Please note: If compiled into the kernel,
-the parameter format is video=sisfb:mode:none or video=sisfb:mode:1024x768x16
-(or whatever mode you want to use, alternatively using any other format
-described above or the vesa keyword instead of mode). If compiled as a module,
-the parameter format reads mode=none or mode=1024x768x16 (or whatever mode you
-want to use). Using a "=" for a ":" (and vice versa) is a huge difference!
-Additionally: If you give more than one argument to the in-kernel sisfb, the
-arguments are separated with ",". For example:
-
- video=sisfb:mode:1024x768x16,rate:75,mem:12288
-
-
-How do I use it?
-================
-
-Preface statement: This file only covers very little of the driver's
-capabilities and features. Please refer to the author's and maintainer's
-website at http://www.winischhofer.net/linuxsisvga.shtml for more
-information. Additionally, "modinfo sisfb" gives an overview over all
-supported options including some explanation.
-
-The desired display mode can be specified using the keyword "mode" with
-a parameter in one of the follwing formats:
- - XxYxDepth or
- - XxY-Depth or
- - XxY-Depth@Rate or
- - XxY
- - or simply use the VESA mode number in hexadecimal or decimal.
-
-For example: 1024x768x16, 1024x768-16@75, 1280x1024-16. If no depth is
-specified, it defaults to 8. If no rate is given, it defaults to 60Hz. Depth 32
-means 24bit color depth (but 32 bit framebuffer depth, which is not relevant
-to the user).
-
-Additionally, sisfb understands the keyword "vesa" followed by a VESA mode
-number in decimal or hexadecimal. For example: vesa=791 or vesa=0x117. Please
-use either "mode" or "vesa" but not both.
-
-Linux 2.4 only: If no mode is given, sisfb defaults to "no mode" (mode=none) if
-compiled as a module; if sisfb is statically compiled into the kernel, it
-defaults to 800x600x8 unless CRT2 type is LCD, in which case the LCD's native
-resolution is used. If you want to switch to a different mode, use the fbset
-shell command.
-
-Linux 2.6 only: If no mode is given, sisfb defaults to 800x600x8 unless CRT2
-type is LCD, in which case it defaults to the LCD's native resolution. If
-you want to switch to another mode, use the stty shell command.
-
-You should compile in both vgacon (to boot if you remove you SiS card from
-your system) and sisfb (for graphics mode). Under Linux 2.6, also "Framebuffer
-console support" (fbcon) is needed for a graphical console.
-
-You should *not* compile-in vesafb. And please do not use the "vga=" keyword
-in lilo's or grub's configuration file; mode selection is done using the
-"mode" or "vesa" keywords as a parameter. See above and below.
-
-
-X11
-===
-
-If using XFree86 or X.org, it is recommended that you don't use the "fbdev"
-driver but the dedicated "sis" X driver. The "sis" X driver and sisfb are
-developed by the same person (Thomas Winischhofer) and cooperate well with
-each other.
-
-
-SVGALib
-=======
-
-SVGALib, if directly accessing the hardware, never restores the screen
-correctly, especially on laptops or if the output devices are LCD or TV.
-Therefore, use the chipset "FBDEV" in SVGALib configuration. This will make
-SVGALib use the framebuffer device for mode switches and restoration.
-
-
-Configuration
-=============
-
-(Some) accepted options:
-
-off - Disable sisfb. This option is only understood if sisfb is
- in-kernel, not a module.
-mem:X - size of memory for the console, rest will be used for DRI/DRM. X
- is in kilobytes. On 300 series, the default is 4096, 8192 or
- 16384 (each in kilobyte) depending on how much video ram the card
- has. On 315/330 series, the default is the maximum available ram
- (since DRI/DRM is not supported for these chipsets).
-noaccel - do not use 2D acceleration engine. (Default: use acceleration)
-noypan - disable y-panning and scroll by redrawing the entire screen.
- This is much slower than y-panning. (Default: use y-panning)
-vesa:X - selects startup videomode. X is number from 0 to 0x1FF and
- represents the VESA mode number (can be given in decimal or
- hexadecimal form, the latter prefixed with "0x").
-mode:X - selects startup videomode. Please see above for the format of
- "X".
-
-Boolean options such as "noaccel" or "noypan" are to be given without a
-parameter if sisfb is in-kernel (for example "video=sisfb:noypan). If
-sisfb is a module, these are to be set to 1 (for example "modprobe sisfb
-noypan=1").
-
---
-Thomas Winischhofer <thomas@winischhofer.net>
-May 27, 2004
-
-
+++ /dev/null
-Support is available for filesystems that wish to do automounting support (such
-as kAFS which can be found in fs/afs/). This facility includes allowing
-in-kernel mounts to be performed and mountpoint degradation to be
-requested. The latter can also be requested by userspace.
-
-
-======================
-IN-KERNEL AUTOMOUNTING
-======================
-
-A filesystem can now mount another filesystem on one of its directories by the
-following procedure:
-
- (1) Give the directory a follow_link() operation.
-
- When the directory is accessed, the follow_link op will be called, and
- it will be provided with the location of the mountpoint in the nameidata
- structure (vfsmount and dentry).
-
- (2) Have the follow_link() op do the following steps:
-
- (a) Call do_kern_mount() to call the appropriate filesystem to set up a
- superblock and gain a vfsmount structure representing it.
-
- (b) Copy the nameidata provided as an argument and substitute the dentry
- argument into it the copy.
-
- (c) Call do_add_mount() to install the new vfsmount into the namespace's
- mountpoint tree, thus making it accessible to userspace. Use the
- nameidata set up in (b) as the destination.
-
- If the mountpoint will be automatically expired, then do_add_mount()
- should also be given the location of an expiration list (see further
- down).
-
- (d) Release the path in the nameidata argument and substitute in the new
- vfsmount and its root dentry. The ref counts on these will need
- incrementing.
-
-Then from userspace, you can just do something like:
-
- [root@andromeda root]# mount -t afs \#root.afs. /afs
- [root@andromeda root]# ls /afs
- asd cambridge cambridge.redhat.com grand.central.org
- [root@andromeda root]# ls /afs/cambridge
- afsdoc
- [root@andromeda root]# ls /afs/cambridge/afsdoc/
- ChangeLog html LICENSE pdf RELNOTES-1.2.2
-
-And then if you look in the mountpoint catalogue, you'll see something like:
-
- [root@andromeda root]# cat /proc/mounts
- ...
- #root.afs. /afs afs rw 0 0
- #root.cell. /afs/cambridge.redhat.com afs rw 0 0
- #afsdoc. /afs/cambridge.redhat.com/afsdoc afs rw 0 0
-
-
-===========================
-AUTOMATIC MOUNTPOINT EXPIRY
-===========================
-
-Automatic expiration of mountpoints is easy, provided you've mounted the
-mountpoint to be expired in the automounting procedure outlined above.
-
-To do expiration, you need to follow these steps:
-
- (3) Create at least one list off which the vfsmounts to be expired can be
- hung. Access to this list will be governed by the vfsmount_lock.
-
- (4) In step (2c) above, the call to do_add_mount() should be provided with a
- pointer to this list. It will hang the vfsmount off of it if it succeeds.
-
- (5) When you want mountpoints to be expired, call mark_mounts_for_expiry()
- with a pointer to this list. This will process the list, marking every
- vfsmount thereon for potential expiry on the next call.
-
- If a vfsmount was already flagged for expiry, and if its usage count is 1
- (it's only referenced by its parent vfsmount), then it will be deleted
- from the namespace and thrown away (effectively unmounted).
-
- It may prove simplest to simply call this at regular intervals, using
- some sort of timed event to drive it.
-
-The expiration flag is cleared by calls to mntput. This means that expiration
-will only happen on the second expiration request after the last time the
-mountpoint was accessed.
-
-If a mountpoint is moved, it gets removed from the expiration list. If a bind
-mount is made on an expirable mount, the new vfsmount will not be on the
-expiration list and will not expire.
-
-If a namespace is copied, all mountpoints contained therein will be copied,
-and the copies of those that are on an expiration list will be added to the
-same expiration list.
-
-
-=======================
-USERSPACE DRIVEN EXPIRY
-=======================
-
-As an alternative, it is possible for userspace to request expiry of any
-mountpoint (though some will be rejected - the current process's idea of the
-rootfs for example). It does this by passing the MNT_EXPIRE flag to
-umount(). This flag is considered incompatible with MNT_FORCE and MNT_DETACH.
-
-If the mountpoint in question is in referenced by something other than
-umount() or its parent mountpoint, an EBUSY error will be returned and the
-mountpoint will not be marked for expiration or unmounted.
-
-If the mountpoint was not already marked for expiry at that time, an EAGAIN
-error will be given and it won't be unmounted.
-
-Otherwise if it was already marked and it wasn't referenced, unmounting will
-take place as usual.
-
-Again, the expiration flag is cleared every time anything other than umount()
-looks at a mountpoint.
+++ /dev/null
- High Precision Event Timer Driver for Linux
-
-The High Precision Event Timer (HPET) hardware is the future replacement for the 8254 and Real
-Time Clock (RTC) periodic timer functionality. Each HPET can have up two 32 timers. It is possible
-to configure the first two timers as legacy replacements for 8254 and RTC periodic. A specification
-done by INTEL and Microsoft can be found at http://www.intel.com/labs/platcomp/hpet/hpetspec.htm.
-
-The driver supports detection of HPET driver allocation and initialization of the HPET before the
-driver module_init routine is called. This enables platform code which uses timer 0 or 1 as the
-main timer to intercept HPET initialization. An example of this initialization can be found in
-arch/i386/kernel/time_hpet.c.
-
-The driver provides two APIs which are very similar to the API found in the rtc.c driver.
-There is a user space API and a kernel space API. An example user space program is provided
-below.
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <memory.h>
-#include <malloc.h>
-#include <time.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <linux/hpet.h>
-
-
-extern void hpet_open_close(int, const char **);
-extern void hpet_info(int, const char **);
-extern void hpet_poll(int, const char **);
-extern void hpet_fasync(int, const char **);
-extern void hpet_read(int, const char **);
-
-#include <sys/poll.h>
-#include <sys/ioctl.h>
-#include <signal.h>
-
-struct hpet_command {
- char *command;
- void (*func)(int argc, const char ** argv);
-} hpet_command[] = {
- {
- "open-close",
- hpet_open_close
- },
- {
- "info",
- hpet_info
- },
- {
- "poll",
- hpet_poll
- },
- {
- "fasync",
- hpet_fasync
- },
-};
-
-int
-main(int argc, const char ** argv)
-{
- int i;
-
- argc--;
- argv++;
-
- if (!argc) {
- fprintf(stderr, "-hpet: requires command\n");
- return -1;
- }
-
-
- for (i = 0; i < (sizeof (hpet_command) / sizeof (hpet_command[0])); i++)
- if (!strcmp(argv[0], hpet_command[i].command)) {
- argc--;
- argv++;
- fprintf(stderr, "-hpet: executing %s\n",
- hpet_command[i].command);
- hpet_command[i].func(argc, argv);
- return 0;
- }
-
- fprintf(stderr, "do_hpet: command %s not implemented\n", argv[0]);
-
- return -1;
-}
-
-void
-hpet_open_close(int argc, const char **argv)
-{
- int fd;
-
- if (argc != 1) {
- fprintf(stderr, "hpet_open_close: device-name\n");
- return;
- }
-
- fd = open(argv[0], O_RDWR);
- if (fd < 0)
- fprintf(stderr, "hpet_open_close: open failed\n");
- else
- close(fd);
-
- return;
-}
-
-void
-hpet_info(int argc, const char **argv)
-{
-}
-
-void
-hpet_poll(int argc, const char **argv)
-{
- unsigned long freq;
- int iterations, i, fd;
- struct pollfd pfd;
- struct hpet_info info;
- struct timeval stv, etv;
- struct timezone tz;
- long usec;
-
- if (argc != 3) {
- fprintf(stderr, "hpet_poll: device-name freq iterations\n");
- return;
- }
-
- freq = atoi(argv[1]);
- iterations = atoi(argv[2]);
-
- fd = open(argv[0], O_RDWR);
-
- if (fd < 0) {
- fprintf(stderr, "hpet_poll: open of %s failed\n", argv[0]);
- return;
- }
-
- if (ioctl(fd, HPET_IRQFREQ, freq) < 0) {
- fprintf(stderr, "hpet_poll: HPET_IRQFREQ failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_INFO, &info) < 0) {
- fprintf(stderr, "hpet_poll: failed to get info\n");
- goto out;
- }
-
- fprintf(stderr, "hpet_poll: info.hi_flags 0x%lx\n", info.hi_flags);
-
- if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) {
- fprintf(stderr, "hpet_poll: HPET_EPI failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_IE_ON, 0) < 0) {
- fprintf(stderr, "hpet_poll, HPET_IE_ON failed\n");
- goto out;
- }
-
- pfd.fd = fd;
- pfd.events = POLLIN;
-
- for (i = 0; i < iterations; i++) {
- pfd.revents = 0;
- gettimeofday(&stv, &tz);
- if (poll(&pfd, 1, -1) < 0)
- fprintf(stderr, "hpet_poll: poll failed\n");
- else {
- long data;
-
- gettimeofday(&etv, &tz);
- usec = stv.tv_sec * 1000000 + stv.tv_usec;
- usec = (etv.tv_sec * 1000000 + etv.tv_usec) - usec;
-
- fprintf(stderr,
- "hpet_poll: expired time = 0x%lx\n", usec);
-
- fprintf(stderr, "hpet_poll: revents = 0x%x\n",
- pfd.revents);
-
- if (read(fd, &data, sizeof(data)) != sizeof(data)) {
- fprintf(stderr, "hpet_poll: read failed\n");
- }
- else
- fprintf(stderr, "hpet_poll: data 0x%lx\n",
- data);
- }
- }
-
-out:
- close(fd);
- return;
-}
-
-static int hpet_sigio_count;
-
-static void
-hpet_sigio(int val)
-{
- fprintf(stderr, "hpet_sigio: called\n");
- hpet_sigio_count++;
-}
-
-void
-hpet_fasync(int argc, const char **argv)
-{
- unsigned long freq;
- int iterations, i, fd, value;
- sig_t oldsig;
- struct hpet_info info;
-
- hpet_sigio_count = 0;
- fd = -1;
-
- if ((oldsig = signal(SIGIO, hpet_sigio)) == SIG_ERR) {
- fprintf(stderr, "hpet_fasync: failed to set signal handler\n");
- return;
- }
-
- if (argc != 3) {
- fprintf(stderr, "hpet_fasync: device-name freq iterations\n");
- goto out;
- }
-
- fd = open(argv[0], O_RDWR);
-
- if (fd < 0) {
- fprintf(stderr, "hpet_fasync: failed to open %s\n", argv[0]);
- return;
- }
-
-
- if ((fcntl(fd, F_SETOWN, getpid()) == 1) ||
- ((value = fcntl(fd, F_GETFL)) == 1) ||
- (fcntl(fd, F_SETFL, value | O_ASYNC) == 1)) {
- fprintf(stderr, "hpet_fasync: fcntl failed\n");
- goto out;
- }
-
- freq = atoi(argv[1]);
- iterations = atoi(argv[2]);
-
- if (ioctl(fd, HPET_IRQFREQ, freq) < 0) {
- fprintf(stderr, "hpet_fasync: HPET_IRQFREQ failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_INFO, &info) < 0) {
- fprintf(stderr, "hpet_fasync: failed to get info\n");
- goto out;
- }
-
- fprintf(stderr, "hpet_fasync: info.hi_flags 0x%lx\n", info.hi_flags);
-
- if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) {
- fprintf(stderr, "hpet_fasync: HPET_EPI failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_IE_ON, 0) < 0) {
- fprintf(stderr, "hpet_fasync, HPET_IE_ON failed\n");
- goto out;
- }
-
- for (i = 0; i < iterations; i++) {
- (void) pause();
- fprintf(stderr, "hpet_fasync: count = %d\n", hpet_sigio_count);
- }
-
-out:
- signal(SIGIO, oldsig);
-
- if (fd >= 0)
- close(fd);
-
- return;
-}
-
-The kernel API has three interfaces exported from the driver:
-
- hpet_register(struct hpet_task *tp, int periodic)
- hpet_unregister(struct hpet_task *tp)
- hpet_control(struct hpet_task *tp, unsigned int cmd, unsigned long arg)
-
-The kernel module using this interface fills in the ht_func and ht_data members of the
-hpet_task structure before calling hpet_register. hpet_control simply vectors to the hpet_ioctl
-routine and has the same commands and respective arguments as the user API. hpet_unregister
-is used to terminate usage of the HPET timer reserved by hpet_register.
-
-
+++ /dev/null
-==================
-i2c-parport driver
-==================
-
-2004-07-06, Jean Delvare
-
-This is a unified driver for several i2c-over-parallel-port adapters,
-such as the ones made by Philips, Velleman or ELV. This driver is
-meant as a replacement for the older, individual drivers:
- * i2c-philips-par
- * i2c-elv
- * i2c-velleman
- * video/i2c-parport (NOT the same as this one, dedicated to home brew
- teletext adapters)
-
-It currently supports the following devices:
- * Philips adapter
- * home brew teletext adapter
- * Velleman K8000 adapter
- * ELV adapter
- * Analog Devices evaluation boards (ADM1025, ADM1030, ADM1031, ADM1032)
-
-These devices use different pinout configurations, so you have to tell
-the driver what you have, using the type module parameter. There is no
-way to autodetect the devices. Support for different pinout configurations
-can be easily added when needed.
-
-
-Building your own adapter
--------------------------
-
-If you want to build you own i2c-over-parallel-port adapter, here is
-a sample electronics schema (credits go to Sylvain Munaut):
-
-Device PC
-Side ___________________Vdd (+) Side
- | | |
- --- --- ---
- | | | | | |
- |R| |R| |R|
- | | | | | |
- --- --- ---
- | | |
- | | /| |
-SCL ----------x--------o |-----------x------------------- pin 2
- | \| | |
- | | |
- | |\ | |
-SDA ----------x----x---| o---x--------------------------- pin 13
- | |/ |
- | |
- | /| |
- ---------o |----------------x-------------- pin 3
- \| | |
- | |
- --- ---
- | | | |
- |R| |R|
- | | | |
- --- ---
- | |
- ### ###
- GND GND
-
-Remarks:
- - This is the exact pinout and electronics used on the Analog Devices
- evaluation boards.
- /|
- - All inverters -o |- must be 74HC05, they must be open collector output.
- \|
- - All resitors are 10k.
- - Pins 18-25 of the parallel port connected to GND.
- - Pins 4-9 (D2-D7) could be used as VDD is the driver drives them high.
- The ADM1032 evaluation board uses D4-D7. Beware that the amount of
- current you can draw from the parallel port is limited. Also note that
- all connected lines MUST BE driven at the same state, else you'll short
- circuit the output buffers! So plugging the I2C adapter after loading
- the i2c-parport module might be a good safety since data line state
- prior to init may be unknown.
- - This is 5V!
- - Obviously you cannot read SCL (so it's not really standard-compliant).
- Pretty easy to add, just copy the SDA part and use another input pin.
- That would give (ELV compatible pinout):
-
-
-Device PC
-Side ______________________________Vdd (+) Side
- | | | |
- --- --- --- ---
- | | | | | | | |
- |R| |R| |R| |R|
- | | | | | | | |
- --- --- --- ---
- | | | |
- | | |\ | |
-SCL ----------x--------x--| o---x------------------------ pin 15
- | | |/ |
- | | |
- | | /| |
- | ---o |-------------x-------------- pin 2
- | \| | |
- | | |
- | | |
- | |\ | |
-SDA ---------------x---x--| o--------x------------------- pin 10
- | |/ |
- | |
- | /| |
- ---o |------------------x--------- pin 3
- \| | |
- | |
- --- ---
- | | | |
- |R| |R|
- | | | |
- --- ---
- | |
- ### ###
- GND GND
-
-
-If possible, you should use the same pinout configuration as existing
-adapters do, so you won't even have to change the code.
-
-
-Similar (but different) drivers
--------------------------------
-
-This driver is NOT the same as the i2c-pport driver found in the i2c package.
-The i2c-pport driver makes use of modern parallel port features so that
-you don't need additional electronics. It has other restrictions however, and
-was not ported to Linux 2.6 (yet).
-
-This driver is also NOT the same as the i2c-pcf-epp driver found in the
-lm_sensors package. The i2c-pcf-epp driver doesn't use the parallel port
-as an I2C bus directly. Instead, it uses it to control an external I2C bus
-master. That driver was not ported to Linux 2.6 (yet) either.
-
-
-Legacy documentation for Velleman adapter
------------------------------------------
-
-Useful links:
-Velleman http://www.velleman.be/
-Velleman K8000 Howto http://howto.htlw16.ac.at/k8000-howto.html
-
-The project has lead to new libs for the Velleman K8000 and K8005:
- LIBK8000 v1.99.1 and LIBK8005 v0.21
-With these libs, you can control the K8000 interface card and the K8005
-stepper motor card with the simple commands which are in the original
-Velleman software, like SetIOchannel, ReadADchannel, SendStepCCWFull and
-many more, using /dev/velleman.
- http://home.wanadoo.nl/hihihi/libk8000.htm
- http://home.wanadoo.nl/hihihi/libk8005.htm
- http://struyve.mine.nu:8080/index.php?block=k8000
- http://sourceforge.net/projects/libk8005/
+++ /dev/null
-===========================================================================
- HVCS
- IBM "Hypervisor Virtual Console Server" Installation Guide
- for Linux Kernel 2.6.4+
- Copyright (C) 2004 IBM Corporation
-
-===========================================================================
-NOTE:Eight space tabs are the optimum editor setting for reading this file.
-===========================================================================
-
- Author(s) : Ryan S. Arnold <rsa@us.ibm.com>
- Date Created: March, 02, 2004
- Last Changed: July, 07, 2004
-
----------------------------------------------------------------------------
-Table of contents:
-
- 1. Driver Introduction:
- 2. System Requirements
- 3. Build Options:
- 3.1 Built-in:
- 3.2 Module:
- 4. Installation:
- 5. Connection:
- 6. Disconnection:
- 7. Configuration:
- 8. Questions & Answers:
- 9. Reporting Bugs:
-
----------------------------------------------------------------------------
-1. Driver Introduction:
-
-This is the device driver for the IBM Hypervisor Virtual Console Server,
-"hvcs". The IBM hvcs provides a tty driver interface to allow Linux user
-space applications access to the system consoles of logically partitioned
-operating systems (Linux and AIX) running on the same partitioned Power5
-ppc64 system. Physical hardware consoles per partition are not practical
-on this hardware so system consoles are accessed by this driver using
-firmware interfaces to virtual terminal devices.
-
----------------------------------------------------------------------------
-2. System Requirements:
-
-This device driver was written using 2.6.4 Linux kernel APIs and will only
-build and run on kernels of this version or later.
-
-This driver was written to operate solely on IBM Power5 ppc64 hardware
-though some care was taken to abstract the architecture dependent firmware
-calls from the driver code.
-
-Sysfs must be mounted on the system so that the user can determine which
-major and minor numbers are associated with each vty-server. Directions
-for sysfs mounting are outside the scope of this document.
-
----------------------------------------------------------------------------
-3. Build Options:
-
-The hvcs driver registers itself as a tty driver. The tty layer
-dynamically allocates a block of major and minor numbers in a quantity
-requested by the registering driver. The hvcs driver asks the tty layer
-for 64 of these major/minor numbers by default to use for hvcs device node
-entries.
-
-If the default number of device entries is adequate then this driver can be
-built into the kernel. If not, the default can be over-ridden by inserting
-the driver as a module with insmod parameters.
-
----------------------------------------------------------------------------
-3.1 Built-in:
-
-The following menuconfig example demonstrates selecting to build this
-driver into the kernel.
-
- Device Drivers --->
- Character devices --->
- <*> IBM Hypervisor Virtual Console Server Support
-
-Begin the kernel make process.
-
----------------------------------------------------------------------------
-3.2 Module:
-
-The following menuconfig example demonstrates selecting to build this
-driver as a kernel module.
-
- Device Drivers --->
- Character devices --->
- <M> IBM Hypervisor Virtual Console Server Support
-
-The make process will build the following kernel modules:
-
- hvcs.ko
- hvcserver.ko
-
-To insert the module with the default allocation execute the following
-commands in the order they appear:
-
- insmod hvcserver.ko
- insmod hvcs.ko
-
-The hvcserver module contains architecture specific firmware calls and must
-be inserted first, otherwise the hvcs module will not find some of the
-symbols it expects.
-
-To override the default use an insmod parameter as follows (requesting 4
-tty devices as an example):
-
- insmod hvcs.ko hvcs_parm_num_devs=4
-
-There is a maximum number of dev entries that can be specified on insmod.
-We think that 1024 is currently a decent maximum number of server adapters
-to allow. This can always be changed by modifying the constant in the
-source file before building.
-
-NOTE: The length of time it takes to insmod the driver seems to be related
-to the number of tty interfaces the registering driver requests.
-
-In order to remove the driver module execute the following command:
-
- rmmod hvcs.ko
-
-The recommended method for installing hvcs as a module is to use depmod to
-build a current modules.dep file in /lib/modules/`uname -r` and then
-execute:
-
-modprobe hvcs hvcs_parm_num_devs=4
-
-The modules.dep file indicates that hvcserver.ko needs to be inserted
-before hvcs.ko and modprobe uses this file to smartly insert the modules in
-the proper order.
-
-The following modprobe command is used to remove hvcs and hvcserver in the
-proper order:
-
-modprobe -r hvcs
-
----------------------------------------------------------------------------
-4. Installation:
-
-The tty layer creates sysfs entries which contain the major and minor
-numbers allocated for the hvcs driver. The following snippet of "tree"
-output of the sysfs directory shows where these numbers are presented:
-
- sys/
- |-- *other sysfs base dirs*
- |
- |-- class
- | |-- *other classes of devices*
- | |
- | `-- tty
- | |-- *other tty devices*
- | |
- | |-- hvcs0
- | | `-- dev
- | |-- hvcs1
- | | `-- dev
- | |-- hvcs2
- | | `-- dev
- | |-- hvcs3
- | | `-- dev
- | |
- | |-- *other tty devices*
- |
- |-- *other sysfs base dirs*
-
-For the above examples the following output is a result of cat'ing the
-"dev" entry in the hvcs directory:
-
- Pow5:/sys/class/tty/hvcs0/ # cat dev
- 254:0
-
- Pow5:/sys/class/tty/hvcs1/ # cat dev
- 254:1
-
- Pow5:/sys/class/tty/hvcs2/ # cat dev
- 254:2
-
- Pow5:/sys/class/tty/hvcs3/ # cat dev
- 254:3
-
-The output from reading the "dev" attribute is the char device major and
-minor numbers that the tty layer has allocated for this driver's use. Most
-systems running hvcs will already have the device entries created or udev
-will do it automatically.
-
-Given the example output above, to manually create a /dev/hvcs* node entry
-mknod can be used as follows:
-
- mknod /dev/hvcs0 c 254 0
- mknod /dev/hvcs1 c 254 1
- mknod /dev/hvcs2 c 254 2
- mknod /dev/hvcs3 c 254 3
-
-Using mknod to manually create the device entries makes these device nodes
-persistent. Once created they will exist prior to the driver insmod.
-
-Attempting to connect an application to /dev/hvcs* prior to insertion of
-the hvcs module will result in an error message similar to the following:
-
- "/dev/hvcs*: No such device".
-
-NOTE: Just because there is a device node present doesn't mean that there
-is a vty-server device configured for that node.
-
----------------------------------------------------------------------------
-5. Connection
-
-Since this driver controls devices that provide a tty interface a user can
-interact with the device node entries using any standard tty-interactive
-method (e.g. "cat", "dd", "echo"). The intent of this driver however, is
-to provide real time console interaction with a Linux partition's console,
-which requires the use of applications that provide bi-directional,
-interactive I/O with a tty device.
-
-Applications (e.g. "minicom" and "screen") that act as terminal emulators
-or perform terminal type control sequence conversion on the data being
-passed through them are NOT acceptable for providing interactive console
-I/O. These programs often emulate antiquated terminal types (vt100 and
-ANSI) and expect inbound data to take the form of one of these supported
-terminal types but they either do not convert, or do not _adequately_
-convert, outbound data into the terminal type of the terminal which invoked
-them (though screen makes an attempt and can apparently be configured with
-much termcap wrestling.)
-
-For this reason kermit and cu are two of the recommended applications for
-interacting with a Linux console via an hvcs device. These programs simply
-act as a conduit for data transfer to and from the tty device. They do not
-require inbound data to take the form of a particular terminal type, nor do
-they cook outbound data to a particular terminal type.
-
-In order to ensure proper functioning of console applications one must make
-sure that once connected to a /dev/hvcs console that the console's $TERM
-env variable is set to the exact terminal type of the terminal emulator
-used to launch the interactive I/O application. If one is using xterm and
-kermit to connect to /dev/hvcs0 when the console prompt becomes available
-one should "export TERM=xterm" on the console. This tells ncurses
-applications that are invoked from the console that they should output
-control sequences that xterm can understand.
-
-As a precautionary measure an hvcs user should always "exit" from their
-session before disconnecting an application such as kermit from the device
-node. If this is not done, the next user to connect to the console will
-continue using the previous user's logged in session which includes
-using the $TERM variable that the previous user supplied.
-
----------------------------------------------------------------------------
-6. Disconnection
-
-As a security feature to prevent the delivery of stale data to an
-unintended target the Power5 system firmware disables the fetching of data
-and discards that data when a connection between a vty-server and a vty has
-been severed. As an example, when a vty-server is immediately disconnected
-from a vty following output of data to the vty the vty adapter may not have
-enough time between when it received the data interrupt and when the
-connection was severed to fetch the data from firmware before the fetch is
-disabled by firmware.
-
-When hvcs is being used to serve consoles this behavior is not a huge issue
-because the adapter stays connected for large amounts of time following
-almost all data writes. When hvcs is being used as a tty conduit to tunnel
-data between two partitions [see Q & A below] this is a huge problem
-because the standard Linux behavior when cat'ing or dd'ing data to a device
-is to open the tty, send the data, and then close the tty. If this driver
-manually terminated vty-server connections on tty close this would close
-the vty-server and vty connection before the target vty has had a chance to
-fetch the data.
-
-Additionally, disconnecting a vty-server and vty only on module removal or
-adapter removal is impractical because other vty-servers in other
-partitions may require the usage of the target vty at any time.
-
-Due to this behavioral restriction disconnection of vty-servers from the
-connected vty is a manual procedure using a write to a sysfs attribute
-outlined below, on the other hand the initial vty-server connection to a
-vty is established automatically by this driver. Manual vty-server
-connection is never required.
-
-In order to terminate the connection between a vty-server and vty the
-"vterm_state" sysfs attribute within each vty-server's sysfs entry is used.
-Reading this attribute reveals the current connection state of the
-vty-server adapter. A zero means that the vty-server is not connected to a
-vty. A one indicates that a connection is active.
-
-Writing a '0' (zero) to the vterm_state attribute will disconnect the VTERM
-connection between the vty-server and target vty ONLY if the vterm_state
-previously read '1'. The write directive is ignored if the vterm_state
-read '0' or if any value other than '0' was written to the vterm_state
-attribute. The following example will show the method used for verifying
-the vty-server connection status and disconnecting a vty-server connection.
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000004 # cat vterm_state
- 1
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000004 # echo 0 > vterm_state
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000004 # cat vterm_state
- 0
-
-All vty-server connections are automatically terminated when the device is
-hotplug removed and when the module is removed.
-
----------------------------------------------------------------------------
-7. Configuration
-
-Each vty-server has a sysfs entry in the /sys/devices/vio directory, which
-is symlinked in several other sysfs tree directories, notably under the
-hvcs driver entry, which looks like the following example:
-
- Pow5:/sys/bus/vio/drivers/hvcs # ls
- . .. 30000003 30000004 rescan
-
-By design, firmware notifies the hvcs driver of vty-server lifetimes and
-partner vty removals but not the addition of partner vtys. Since an HMC
-Super Admin can add partner info dynamically we have provided the hvcs
-driver sysfs directory with the "rescan" update attribute which will query
-firmware and update the partner info for all the vty-servers that this
-driver manages. Writing a '1' to the attribute triggers the update. An
-explicit example follows:
-
- Pow5:/sys/bus/vio/drivers/hvcs # echo 1 > rescan
-
-Reading the attribute will indicate a state of '1' or '0'. A one indicates
-that an update is in process. A zero indicates that an update has
-completed or was never executed.
-
-Vty-server entries in this directory are a 32 bit partition unique unit
-address that is created by firmware. An example vty-server sysfs entry
-looks like the following:
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000004 # ls
- . current_vty devspec partner_clcs vterm_state
- .. detach_state name partner_vtys
-
-Each entry is provided, by default with a "name" attribute. Reading the
-"name" attribute will reveal the device type as shown in the following
-example:
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000003 # cat name
- vty-server
-
-Each entry is also provided, by default, with a "devspec" attribute which
-reveals the full device specification when read, as shown in the following
-example:
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000004 # cat devspec
- /vdevice/vty-server@30000004
-
-Each vty-server sysfs dir is provided with two read-only attributes that
-provide lists of easily parsed partner vty data: "partner_vtys" and
-"partner_clcs".
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000004 # cat partner_vtys
- 30000000
- 30000001
- 30000002
- 30000000
- 30000000
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000004 # cat partner_clcs
- U5112.428.103048A-V3-C0
- U5112.428.103048A-V3-C2
- U5112.428.103048A-V3-C3
- U5112.428.103048A-V4-C0
- U5112.428.103048A-V5-C0
-
-Reading partner_vtys returns a list of partner vtys. Vty unit address
-numbering is only per-partition-unique so entries will frequently repeat.
-
-Reading partner_clcs returns a list of "converged location codes" which are
-composed of a system serial number followed by "-V*", where the '*' is the
-target partition number, and "-C*", where the '*' is the slot of the
-adapter. The first vty partner corresponds to the first clc item, the
-second vty partner to the second clc item, etc.
-
-A vty-server can only be connected to a single vty at a time. The entry,
-"current_vty" prints the clc of the currently selected partner vty when
-read.
-
-The current_vty can be changed by writing a valid partner clc to the entry
-as in the following example:
-
- Pow5:/sys/bus/vio/drivers/hvcs/30000004 # echo U5112.428.10304
- 8A-V4-C0 > current_vty
-
-Changing the current_vty when a vty-server is already connected to a vty
-does not affect the current connection. The change takes effect when the
-currently open connection is freed.
-
-Information on the "vterm_state" attribute was covered earlier on the
-chapter entitled "disconnection".
-
----------------------------------------------------------------------------
-8. Questions & Answers:
-===========================================================================
-Q: What are the security concerns involving hvcs?
-
-A: There are three main security concerns:
-
- 1. The creator of the /dev/hvcs* nodes has the ability to restrict
- the access of the device entries to certain users or groups. It
- may be best to create a special hvcs group privilege for providing
- access to system consoles.
-
- 2. To provide network security when grabbing the console it is
- suggested that the user connect to the console hosting partition
- using a secure method, such as SSH or sit at a hardware console.
-
- 3. Make sure to exit the user session when done with a console or
- the next vty-server connection (which may be from another
- partition) will experience the previously logged in session.
-
----------------------------------------------------------------------------
-Q: How do I multiplex a console that I grab through hvcs so that other
-people can see it:
-
-A: You can use "screen" to directly connect to the /dev/hvcs* device and
-setup a session on your machine with the console group privileges. As
-pointed out earlier by default screen doesn't provide the termcap settings
-for most terminal emulators to provide adequate character conversion from
-term type "screen" to others. This means that curses based programs may
-not display properly in screen sessions.
-
----------------------------------------------------------------------------
-Q: Why are the colors all messed up?
-Q: Why are the control characters acting strange or not working?
-Q: Why is the console output all strange and unintelligible?
-
-A: Please see the preceding section on "Connection" for a discussion of how
-applications can affect the display of character control sequences.
-Additionally, just because you logged into the console using and xterm
-doesn't mean someone else didn't log into the console with the HMC console
-(vt320) before you and leave the session logged in. The best thing to do
-is to export TERM to the terminal type of your terminal emulator when you
-get the console. Additionally make sure to "exit" the console before you
-disconnect from the console. This will ensure that the next user gets
-their own TERM type set when they login.
-
----------------------------------------------------------------------------
-Q: When I try to CONNECT kermit to an hvcs device I get:
-"Sorry, can't open connection: /dev/hvcs*"What is happening?
-
-A: Some other Power5 console mechanism has a connection to the vty and
-isn't giving it up. You can try to force disconnect the consoles from the
-HMC by right clicking on the partition and then selecting "close terminal".
-Otherwise you have to hunt down the people who have console authority. It
-is possible that you already have the console open using another kermit
-session and just forgot about it. Please review the console options for
-Power5 systems to determine the many ways a system console can be held.
-
-OR
-
-A: Another user may not have a connectivity method currently attached to a
-/dev/hvcs device but the vterm_state may reveal that they still have the
-vty-server connection established. They need to free this using the method
-outlined in the section on "Disconnection" in order for others to connect
-to the target vty.
-
-OR
-
-A: The user profile you are using to execute kermit probably doesn't have
-permissions to use the /dev/hvcs* device.
-
-OR
-
-A: You probably haven't inserted the hvcs.ko module yet but the /dev/hvcs*
-entry still exists (on systems without udev).
-
-OR
-
-A: There is not a corresponding vty-server device that maps to an existing
-/dev/hvcs* entry.
-
----------------------------------------------------------------------------
-Q: When I try to CONNECT kermit to an hvcs device I get:
-"Sorry, write access to UUCP lockfile directory denied."
-
-A: The /dev/hvcs* entry you have specified doesn't exist where you said it
-does? Maybe you haven't inserted the module (on systems with udev).
-
----------------------------------------------------------------------------
-Q: If I already have one Linux partition installed can I use hvcs on said
-partition to provide the console for the install of a second Linux
-partition?
-
-A: Yes granted that your are connected to the /dev/hvcs* device using
-kermit or cu or some other program that doesn't provide terminal emulation.
-
----------------------------------------------------------------------------
-Q: Can I connect to more than one partition's console at a time using this
-driver?
-
-A: Yes. Of course this means that there must be more than one vty-server
-configured for this partition and each must point to a disconnected vty.
-
----------------------------------------------------------------------------
-Q: Does the hvcs driver support dynamic (hotplug) addition of devices?
-
-A: Yes, if you have dlpar and hotplug enabled for your system and it has
-been built into the kernel the hvcs drivers is configured to dynamically
-handle additions of new devices and removals of unused devices.
-
----------------------------------------------------------------------------
-Q: Can I use /dev/hvcs* as a conduit to another partition and use a tty
-device on that partition as the other end of the pipe?
-
-A: Yes, on Power5 platforms the hvc_console driver provides a tty interface
-for extra /dev/hvc* devices (where /dev/hvc0 is most likely the console).
-In order to get a tty conduit working between the two partitions the HMC
-Super Admin must create an additional "serial server" for the target
-partition with the HMC gui which will show up as /dev/hvc* when the target
-partition is rebooted.
-
-The HMC Super Admin then creates an additional "serial client" for the
-current partition and points this at the target partition's newly created
-"serial server" adapter (remember the slot). This shows up as an
-additional /dev/hvcs* device.
-
-Now a program on the target system can be configured to read or write to
-/dev/hvc* and another program on the current partition can be configured to
-read or write to /dev/hvcs*. Now you have a tty conduit between two
-partitions.
-
----------------------------------------------------------------------------
-9. Reporting Bugs:
-
-The proper channel for reporting bugs is either through the Linux OS
-distribution company that provided your OS or by posting issues to the
-ppc64 development mailing list at:
-
-linuxppc64-dev@lists.linuxppc.org
-
-This request is to provide a documented and searchable public exchange
-of the problems and solutions surrounding this driver for the benefit of
-all users.
+++ /dev/null
-Linux 2.6.x on MPC52xx family
------------------------------
-
-For the latest info, go to http://www.246tNt.com/mpc52xx/state.txt
-
-To compile/use :
-
- - U-Boot:
- # <edit Makefile to set ARCH=ppc & CROSS_COMPILE=... ( also EXTRAVERSION
- if you wish to ).
- # make lite5200_defconfig
- # make uImage
-
- then, on U-boot:
- => tftpboot 200000 uImage
- => tftpboot 400000 pRamdisk
- => bootm 200000 400000
-
- - DBug:
- # <edit Makefile to set ARCH=ppc & CROSS_COMPILE=... ( also EXTRAVERSION
- if you wish to ).
- # make lite5200_defconfig
- # cp your_initrd.gz arch/ppc/boot/images/ramdisk.image.gz
- # make zImage.initrd
- # make
-
- then in DBug:
- DBug> dn -i zImage.initrd.lite5200
-
-
-Some remarks :
- - The port is named mpc52xxx, and config options are PPC_MPC52xx. The MGT5100
- is not supported, and I'm not sure anyone is interesting in working on it
- so. I didn't took 5xxx because there's apparently a lot of 5xxx that have
- nothing to do with the MPC5200. I also included the 'MPC' for the same
- reason.
- - Of course, I inspired myself from the 2.4 port. If you think I forgot to
- mention you/your company in the copyright of some code, I'll correct it
- ASAP.
- - The codes wants the MBAR to be set at 0xf0000000 by the bootloader. It's
- mapped 1:1 with the MMU. If for whatever reason, you want to change this,
- beware that some code depends on the 0xf0000000 address and other depends
- on the 1:1 mapping.
- - Most of the code assumes that port multiplexing, frequency selection, ...
- has already been done. IMHO this should be done as early as possible, in
- the bootloader. If for whatever reason you can't do it there, do it in the
- platform setup code (if U-Boot) or in the arch/ppc/boot/simple/... (if
- DBug)
+++ /dev/null
-
- SN9C10[12] PC Camera Controllers
- Driver for Linux
- ================================
-
- - Documentation -
-
-
-Index
-=====
-1. Copyright
-2. License
-3. Overview
-4. Module dependencies
-5. Module loading
-6. Module parameters
-7. Device control through "sysfs"
-8. Supported devices
-9. How to add support for new image sensors
-10. Note for V4L2 developers
-11. Contact information
-12. Credits
-
-
-1. Copyright
-============
-Copyright (C) 2004 by Luca Risolia <luca.risolia@studio.unibo.it>
-
-SONiX is a trademark of SONiX Technology Company Limited, inc.
-This driver is not sponsored or developed by SONiX.
-
-
-2. License
-==========
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-
-3. Overview
-===========
-This driver attempts to support the video streaming capabilities of the devices
-mounting the SONiX SN9C101 or SONiX SN9C102 PC Camera Controllers.
-
-- It's worth to note that SONiX has never collaborated with me during the
-development of this project, despite of several requests for enough detailed
-specifications of the register tables, compression engine and video data format
-of the above chips -
-
-Up to 64 cameras can be handled at the same time. They can be connected and
-disconnected from the host many times without turning off the computer, if
-your system supports the hotplug facility.
-
-The driver relies on the Video4Linux2 and USB core modules. It has been
-designed to run properly on SMP systems as well.
-
-The latest version of the SN9C10[12] driver can be found at the following URL:
-http://go.lamarinapunto.com/
-
-
-4. Module dependencies
-======================
-For it to work properly, the driver needs kernel support for Video4Linux and
-USB.
-
-The following options of the kernel configuration file must be enabled and
-corresponding modules must be compiled:
-
- # Multimedia devices
- #
- CONFIG_VIDEO_DEV=m
-
- # USB support
- #
- CONFIG_USB=m
-
-In addition, depending on the hardware being used, the modules below are
-necessary:
-
- # USB Host Controller Drivers
- #
- CONFIG_USB_EHCI_HCD=m
- CONFIG_USB_UHCI_HCD=m
- CONFIG_USB_OHCI_HCD=m
-
-And finally:
-
- # USB Multimedia devices
- #
- CONFIG_USB_SN9C102=m
-
-
-5. Module loading
-=================
-To use the driver, it is necessary to load the "sn9c102" module into memory
-after every other module required: "videodev", "usbcore" and, depending on
-the USB host controller you have, "ehci-hcd", "uhci-hcd" or "ohci-hcd".
-
-Loading can be done as shown below:
-
- [root@localhost home]# modprobe usbcore
- [root@localhost home]# modprobe sn9c102
-
-At this point the devices should be recognized. You can invoke "dmesg" to
-analyze kernel messages and verify that the loading process has gone well:
-
- [user@localhost home]$ dmesg
-
-
-6. Module parameters
-====================
-Module parameters are listed below:
--------------------------------------------------------------------------------
-Name: video_nr
-Type: int array (min = 0, max = 32)
-Syntax: <-1|n[,...]>
-Description: Specify V4L2 minor mode number:
- -1 = use next available
- n = use minor number n
- You can specify up to 32 cameras this way.
- For example:
- video_nr=-1,2,-1 would assign minor number 2 to the second
- recognized camera and use auto for the first one and for every
- other camera.
-Default: -1
--------------------------------------------------------------------------------
-Name: debug
-Type: int
-Syntax: <n>
-Description: Debugging information level, from 0 to 3:
- 0 = none (use carefully)
- 1 = critical errors
- 2 = significant informations
- 3 = more verbose messages
- Level 3 is useful for testing only, when just one device
- is used.
-Default: 2
--------------------------------------------------------------------------------
-
-
-7. Device control through "sysfs"
-=================================
-It is possible to read and write both the SN9C10[12] and the image sensor
-registers by using the "sysfs" filesystem interface.
-
-Every time a supported device is recognized, read-only files named "redblue"
-and "green" are created in the /sys/class/video4linux/videoX directory. You can
-set the red, blue and green channel's gain by writing the desired value to
-them. The value may range from 0 to 15 for each channel; this means that
-"redblue" accepts 8-bit values, where the low 4 bits are reserved for red and
-the others for blue.
-
-There are other four entries in the directory above for each registered camera:
-"reg", "val", "i2c_reg" and "i2c_val". The first two files control the
-SN9C10[12] bridge, while the other two control the sensor chip. "reg" and
-"i2c_reg" hold the values of the current register index where the following
-reading/writing operations are addressed at through "val" and "i2c_val". Their
-use is not intended for end-users, unless you know what you are doing. Note
-that "i2c_reg" and "i2c_val" won't be created if the sensor does not actually
-support the standard I2C protocol. Also, remember that you must be logged in as
-root before writing to them.
-
-As an example, suppose we were to want to read the value contained in the
-register number 1 of the sensor register table - which usually is the product
-identifier - of the camera registered as "/dev/video0":
-
- [root@localhost #] cd /sys/class/video4linux/video0
- [root@localhost #] echo 1 > i2c_reg
- [root@localhost #] cat i2c_val
-
-Now let's set the green gain's register of the SN9C10[12] chip to 2:
-
- [root@localhost #] echo 0x11 > reg
- [root@localhost #] echo 2 > val
-
-Note that the SN9C10[12] always returns 0 when some of its registers are read.
-To avoid race conditions, all the I/O accesses to the files are serialized.
-
-
-8. Supported devices
-====================
-- I won't mention any of the names of the companies as well as their products
-here. They have never collaborated with me, so no advertising -
-
-From the point of view of a driver, what unambiguously identify a device are
-its vendor and product USB identifiers. Below is a list of known identifiers of
-devices mounting the SN9C10[12] PC camera controllers:
-
-Vendor ID Product ID
---------- ----------
-0xc45 0x6001
-0xc45 0x6005
-0xc45 0x6009
-0xc45 0x600d
-0xc45 0x6024
-0xc45 0x6025
-0xc45 0x6028
-0xc45 0x6029
-0xc45 0x602a
-0xc45 0x602c
-0xc45 0x8001
-
-The list above does NOT imply that all those devices work with this driver: up
-until now only the ones that mount the following image sensors are supported.
-Kernel messages will always tell you whether this is the case:
-
-Model Manufacturer
------ ------------
-PAS106B PixArt Imaging Inc.
-TAS5110C1B Taiwan Advanced Sensor Corporation
-TAS5130D1B Taiwan Advanced Sensor Corporation
-
-If you think your camera is based on the above hardware and is not actually
-listed in the above table, you may try to add the specific USB VendorID and
-ProductID identifiers to the sn9c102_id_table[] in the file "sn9c102_sensor.h";
-then compile, load the module again and look at the kernel output.
-If this works, please send an email to me reporting the kernel messages, so
-that I will add a new entry in the list of supported devices.
-
-Donations of new models for further testing and support would be much
-appreciated. I won't add official support for hardware that I don't actually
-have.
-
-
-9. How to add support for new image sensors
-===========================================
-It should be easy to write code for new sensors by using the small API that I
-have created for this purpose, which is present in "sn9c102_sensor.h"
-(documentation is included there). As an example, have a look at the code in
-"sn9c102_pas106b.c", which uses the mentioned interface.
-
-At the moment, not yet supported image sensors are: PAS202B (VGA),
-HV7131[D|E1] (VGA), MI03 (VGA), OV7620 (VGA).
-
-
-10. Note for V4L2 developers
-============================
-This driver follows the V4L2 API specifications. In particular, it enforces two
-rules:
-
-1) Exactly one I/O method, either "mmap" or "read", is associated with each
-file descriptor. Once it is selected, the application must close and reopen the
-device to switch to the other I/O method.
-
-2) Previously mapped buffer memory must always be unmapped before calling any
-of the "VIDIOC_S_CROP", "VIDIOC_TRY_FMT" and "VIDIOC_S_FMT" ioctl's. In case,
-the same number of buffers as before will be allocated again to match the size
-of the new video frames, so you have to map them again before any I/O attempts.
-
-
-11. Contact information
-=======================
-I may be contacted by e-mail at <luca.risolia@studio.unibo.it>.
-
-I can accept GPG/PGP encrypted e-mail. My GPG key ID is 'FCE635A4'.
-My public 1024-bit key should be available at any keyserver; the fingerprint
-is: '88E8 F32F 7244 68BA 3958 5D40 99DA 5D2A FCE6 35A4'.
-
-
-12. Credits
-===========
-I would thank the following persons:
-
-- Stefano Mozzi, who donated 45 EU;
-- Luca Capello for the donation of a webcam;
-- Mizuno Takafumi for the donation of a webcam.
+++ /dev/null
- .type initrd_start,#object
- .globl initrd_start
-initrd_start:
- .incbin INITRD
- .globl initrd_end
-initrd_end:
+++ /dev/null
- .globl kernel_start
-kernel_start:
- .incbin "arch/arm/boot/zImage"
- .globl kernel_end
-kernel_end:
- .align 2
+++ /dev/null
- .section .piggydata,#alloc
- .globl input_data
-input_data:
- .incbin "arch/arm/boot/compressed/piggy.gz"
- .globl input_data_end
-input_data_end:
+++ /dev/null
-/*
- * linux/arch/arm/common/locomo.c
- *
- * Sharp LoCoMo support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This file contains all generic LoCoMo support.
- *
- * All initialization functions provided here are intended to be called
- * from machine specific code with proper arguments when required.
- *
- * Based on sa1111.c
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-
-#include <asm/hardware.h>
-#include <asm/mach-types.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-
-#include <asm/hardware/locomo.h>
-
-/* the following is the overall data for the locomo chip */
-struct locomo {
- struct device *dev;
- unsigned long phys;
- unsigned int irq;
- void *base;
-};
-
-struct locomo_dev_info {
- unsigned long offset;
- unsigned long length;
- unsigned int devid;
- unsigned int irq[1];
- const char * name;
-};
-
-static struct locomo_dev_info locomo_devices[] = {
-};
-
-
-/** LoCoMo interrupt handling stuff.
- * NOTE: LoCoMo has a 1 to many mapping on all of its IRQs.
- * that is, there is only one real hardware interrupt
- * we determine which interrupt it is by reading some IO memory.
- * We have two levels of expansion, first in the handler for the
- * hardware interrupt we generate an interrupt
- * IRQ_LOCOMO_*_BASE and those handlers generate more interrupts
- *
- * hardware irq reads LOCOMO_ICR & 0x0f00
- * IRQ_LOCOMO_KEY_BASE
- * IRQ_LOCOMO_GPIO_BASE
- * IRQ_LOCOMO_LT_BASE
- * IRQ_LOCOMO_SPI_BASE
- * IRQ_LOCOMO_KEY_BASE reads LOCOMO_KIC & 0x0001
- * IRQ_LOCOMO_KEY
- * IRQ_LOCOMO_GPIO_BASE reads LOCOMO_GIR & LOCOMO_GPD & 0xffff
- * IRQ_LOCOMO_GPIO[0-15]
- * IRQ_LOCOMO_LT_BASE reads LOCOMO_LTINT & 0x0001
- * IRQ_LOCOMO_LT
- * IRQ_LOCOMO_SPI_BASE reads LOCOMO_SPIIR & 0x000F
- * IRQ_LOCOMO_SPI_RFR
- * IRQ_LOCOMO_SPI_RFW
- * IRQ_LOCOMO_SPI_OVRN
- * IRQ_LOCOMO_SPI_TEND
- */
-
-#define LOCOMO_IRQ_START (IRQ_LOCOMO_KEY_BASE)
-#define LOCOMO_IRQ_KEY_START (IRQ_LOCOMO_KEY)
-#define LOCOMO_IRQ_GPIO_START (IRQ_LOCOMO_GPIO0)
-#define LOCOMO_IRQ_LT_START (IRQ_LOCOMO_LT)
-#define LOCOMO_IRQ_SPI_START (IRQ_LOCOMO_SPI_RFR)
-
-static void locomo_handler(unsigned int irq, struct irqdesc *desc,
- struct pt_regs *regs)
-{
- int req, i;
- struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
-
- /* Acknowledge the parent IRQ */
- desc->chip->ack(irq);
-
- /* check why this interrupt was generated */
- req = locomo_readl(mapbase + LOCOMO_ICR) & 0x0f00;
-
- if (req) {
- /* generate the next interrupt(s) */
- irq = LOCOMO_IRQ_START;
- d = irq_desc + irq;
- for (i = 0; i <= 3; i++, d++, irq++) {
- if (req & (0x0100 << i)) {
- d->handle(irq, d, regs);
- }
-
- }
- }
-}
-
-static void locomo_ack_irq(unsigned int irq)
-{
-}
-
-static void locomo_mask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_ICR);
- r &= ~(0x0010 << (irq - LOCOMO_IRQ_START));
- locomo_writel(r, mapbase + LOCOMO_ICR);
-}
-
-static void locomo_unmask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_ICR);
- r |= (0x0010 << (irq - LOCOMO_IRQ_START));
- locomo_writel(r, mapbase + LOCOMO_ICR);
-}
-
-static struct irqchip locomo_chip = {
- .ack = locomo_ack_irq,
- .mask = locomo_mask_irq,
- .unmask = locomo_unmask_irq,
-};
-
-static void locomo_key_handler(unsigned int irq, struct irqdesc *desc,
- struct pt_regs *regs)
-{
- struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
-
- if (locomo_readl(mapbase + LOCOMO_KIC) & 0x0001) {
- d = irq_desc + LOCOMO_IRQ_KEY_START;
- d->handle(LOCOMO_IRQ_KEY_START, d, regs);
- }
-}
-
-static void locomo_key_ack_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_KIC);
- r &= ~(0x0100 << (irq - LOCOMO_IRQ_KEY_START));
- locomo_writel(r, mapbase + LOCOMO_KIC);
-}
-
-static void locomo_key_mask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_KIC);
- r &= ~(0x0010 << (irq - LOCOMO_IRQ_KEY_START));
- locomo_writel(r, mapbase + LOCOMO_KIC);
-}
-
-static void locomo_key_unmask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_KIC);
- r |= (0x0010 << (irq - LOCOMO_IRQ_KEY_START));
- locomo_writel(r, mapbase + LOCOMO_KIC);
-}
-
-static struct irqchip locomo_key_chip = {
- .ack = locomo_key_ack_irq,
- .mask = locomo_key_mask_irq,
- .unmask = locomo_key_unmask_irq,
-};
-
-static void locomo_gpio_handler(unsigned int irq, struct irqdesc *desc,
- struct pt_regs *regs)
-{
- int req, i;
- struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
-
- req = locomo_readl(mapbase + LOCOMO_GIR) &
- locomo_readl(mapbase + LOCOMO_GPD) &
- 0xffff;
-
- if (req) {
- irq = LOCOMO_IRQ_GPIO_START;
- d = irq_desc + LOCOMO_IRQ_GPIO_START;
- for (i = 0; i <= 15; i++, irq++, d++) {
- if (req & (0x0001 << i)) {
- d->handle(irq, d, regs);
- }
- }
- }
-}
-
-static void locomo_gpio_ack_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_GWE);
- r |= (0x0001 << (irq - LOCOMO_IRQ_GPIO_START));
- locomo_writel(r, mapbase + LOCOMO_GWE);
-
- r = locomo_readl(mapbase + LOCOMO_GIS);
- r &= ~(0x0001 << (irq - LOCOMO_IRQ_GPIO_START));
- locomo_writel(r, mapbase + LOCOMO_GIS);
-
- r = locomo_readl(mapbase + LOCOMO_GWE);
- r &= ~(0x0001 << (irq - LOCOMO_IRQ_GPIO_START));
- locomo_writel(r, mapbase + LOCOMO_GWE);
-}
-
-static void locomo_gpio_mask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_GIE);
- r &= ~(0x0001 << (irq - LOCOMO_IRQ_GPIO_START));
- locomo_writel(r, mapbase + LOCOMO_GIE);
-}
-
-static void locomo_gpio_unmask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_GIE);
- r |= (0x0001 << (irq - LOCOMO_IRQ_GPIO_START));
- locomo_writel(r, mapbase + LOCOMO_GIE);
-}
-
-static struct irqchip locomo_gpio_chip = {
- .ack = locomo_gpio_ack_irq,
- .mask = locomo_gpio_mask_irq,
- .unmask = locomo_gpio_unmask_irq,
-};
-
-static void locomo_lt_handler(unsigned int irq, struct irqdesc *desc,
- struct pt_regs *regs)
-{
- struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
-
- if (locomo_readl(mapbase + LOCOMO_LTINT) & 0x0001) {
- d = irq_desc + LOCOMO_IRQ_LT_START;
- d->handle(LOCOMO_IRQ_LT_START, d, regs);
- }
-}
-
-static void locomo_lt_ack_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_LTINT);
- r &= ~(0x0100 << (irq - LOCOMO_IRQ_LT_START));
- locomo_writel(r, mapbase + LOCOMO_LTINT);
-}
-
-static void locomo_lt_mask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_LTINT);
- r &= ~(0x0010 << (irq - LOCOMO_IRQ_LT_START));
- locomo_writel(r, mapbase + LOCOMO_LTINT);
-}
-
-static void locomo_lt_unmask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_LTINT);
- r |= (0x0010 << (irq - LOCOMO_IRQ_LT_START));
- locomo_writel(r, mapbase + LOCOMO_LTINT);
-}
-
-static struct irqchip locomo_lt_chip = {
- .ack = locomo_lt_ack_irq,
- .mask = locomo_lt_mask_irq,
- .unmask = locomo_lt_unmask_irq,
-};
-
-static void locomo_spi_handler(unsigned int irq, struct irqdesc *desc,
- struct pt_regs *regs)
-{
- int req, i;
- struct irqdesc *d;
- void *mapbase = get_irq_chipdata(irq);
-
- req = locomo_readl(mapbase + LOCOMO_SPIIR) & 0x000F;
- if (req) {
- irq = LOCOMO_IRQ_SPI_START;
- d = irq_desc + irq;
-
- for (i = 0; i <= 3; i++, irq++, d++) {
- if (req & (0x0001 << i)) {
- d->handle(irq, d, regs);
- }
- }
- }
-}
-
-static void locomo_spi_ack_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_SPIWE);
- r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START));
- locomo_writel(r, mapbase + LOCOMO_SPIWE);
-
- r = locomo_readl(mapbase + LOCOMO_SPIIS);
- r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START));
- locomo_writel(r, mapbase + LOCOMO_SPIIS);
-
- r = locomo_readl(mapbase + LOCOMO_SPIWE);
- r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START));
- locomo_writel(r, mapbase + LOCOMO_SPIWE);
-}
-
-static void locomo_spi_mask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_SPIIE);
- r &= ~(0x0001 << (irq - LOCOMO_IRQ_SPI_START));
- locomo_writel(r, mapbase + LOCOMO_SPIIE);
-}
-
-static void locomo_spi_unmask_irq(unsigned int irq)
-{
- void *mapbase = get_irq_chipdata(irq);
- unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_SPIIE);
- r |= (0x0001 << (irq - LOCOMO_IRQ_SPI_START));
- locomo_writel(r, mapbase + LOCOMO_SPIIE);
-}
-
-static struct irqchip locomo_spi_chip = {
- .ack = locomo_spi_ack_irq,
- .mask = locomo_spi_mask_irq,
- .unmask = locomo_spi_unmask_irq,
-};
-
-static void locomo_setup_irq(struct locomo *lchip)
-{
- int irq;
- void *irqbase = lchip->base;
-
- /*
- * Install handler for IRQ_LOCOMO_HW.
- */
- set_irq_type(lchip->irq, IRQT_FALLING);
- set_irq_chipdata(lchip->irq, irqbase);
- set_irq_chained_handler(lchip->irq, locomo_handler);
-
- /* Install handlers for IRQ_LOCOMO_*_BASE */
- set_irq_chip(IRQ_LOCOMO_KEY_BASE, &locomo_chip);
- set_irq_chipdata(IRQ_LOCOMO_KEY_BASE, irqbase);
- set_irq_chained_handler(IRQ_LOCOMO_KEY_BASE, locomo_key_handler);
- set_irq_flags(IRQ_LOCOMO_KEY_BASE, IRQF_VALID | IRQF_PROBE);
-
- set_irq_chip(IRQ_LOCOMO_GPIO_BASE, &locomo_chip);
- set_irq_chipdata(IRQ_LOCOMO_GPIO_BASE, irqbase);
- set_irq_chained_handler(IRQ_LOCOMO_GPIO_BASE, locomo_gpio_handler);
- set_irq_flags(IRQ_LOCOMO_GPIO_BASE, IRQF_VALID | IRQF_PROBE);
-
- set_irq_chip(IRQ_LOCOMO_LT_BASE, &locomo_chip);
- set_irq_chipdata(IRQ_LOCOMO_LT_BASE, irqbase);
- set_irq_chained_handler(IRQ_LOCOMO_LT_BASE, locomo_lt_handler);
- set_irq_flags(IRQ_LOCOMO_LT_BASE, IRQF_VALID | IRQF_PROBE);
-
- set_irq_chip(IRQ_LOCOMO_SPI_BASE, &locomo_chip);
- set_irq_chipdata(IRQ_LOCOMO_SPI_BASE, irqbase);
- set_irq_chained_handler(IRQ_LOCOMO_SPI_BASE, locomo_spi_handler);
- set_irq_flags(IRQ_LOCOMO_SPI_BASE, IRQF_VALID | IRQF_PROBE);
-
- /* install handlers for IRQ_LOCOMO_KEY_BASE generated interrupts */
- set_irq_chip(LOCOMO_IRQ_KEY_START, &locomo_key_chip);
- set_irq_chipdata(LOCOMO_IRQ_KEY_START, irqbase);
- set_irq_handler(LOCOMO_IRQ_KEY_START, do_edge_IRQ);
- set_irq_flags(LOCOMO_IRQ_KEY_START, IRQF_VALID | IRQF_PROBE);
-
- /* install handlers for IRQ_LOCOMO_GPIO_BASE generated interrupts */
- for (irq = LOCOMO_IRQ_GPIO_START; irq < LOCOMO_IRQ_GPIO_START + 16; irq++) {
- set_irq_chip(irq, &locomo_gpio_chip);
- set_irq_chipdata(irq, irqbase);
- set_irq_handler(irq, do_edge_IRQ);
- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
- }
-
- /* install handlers for IRQ_LOCOMO_LT_BASE generated interrupts */
- set_irq_chip(LOCOMO_IRQ_LT_START, &locomo_lt_chip);
- set_irq_chipdata(LOCOMO_IRQ_LT_START, irqbase);
- set_irq_handler(LOCOMO_IRQ_LT_START, do_edge_IRQ);
- set_irq_flags(LOCOMO_IRQ_LT_START, IRQF_VALID | IRQF_PROBE);
-
- /* install handlers for IRQ_LOCOMO_SPI_BASE generated interrupts */
- for (irq = LOCOMO_IRQ_SPI_START; irq < LOCOMO_IRQ_SPI_START + 3; irq++) {
- set_irq_chip(irq, &locomo_spi_chip);
- set_irq_chipdata(irq, irqbase);
- set_irq_handler(irq, do_edge_IRQ);
- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
- }
-}
-
-
-static void locomo_dev_release(struct device *_dev)
-{
- struct locomo_dev *dev = LOCOMO_DEV(_dev);
-
- release_resource(&dev->res);
- kfree(dev);
-}
-
-static int
-locomo_init_one_child(struct locomo *lchip, struct resource *parent,
- struct locomo_dev_info *info)
-{
- struct locomo_dev *dev;
- int ret;
-
- dev = kmalloc(sizeof(struct locomo_dev), GFP_KERNEL);
- if (!dev) {
- ret = -ENOMEM;
- goto out;
- }
- memset(dev, 0, sizeof(struct locomo_dev));
-
- strncpy(dev->dev.bus_id,info->name,sizeof(dev->dev.bus_id));
- /*
- * If the parent device has a DMA mask associated with it,
- * propagate it down to the children.
- */
- if (lchip->dev->dma_mask) {
- dev->dma_mask = *lchip->dev->dma_mask;
- dev->dev.dma_mask = &dev->dma_mask;
- }
-
- dev->devid = info->devid;
- dev->dev.parent = lchip->dev;
- dev->dev.bus = &locomo_bus_type;
- dev->dev.release = locomo_dev_release;
- dev->dev.coherent_dma_mask = lchip->dev->coherent_dma_mask;
- dev->res.start = lchip->phys + info->offset;
- dev->res.end = dev->res.start + info->length;
- dev->res.name = dev->dev.bus_id;
- dev->res.flags = IORESOURCE_MEM;
- dev->mapbase = lchip->base + info->offset;
- memmove(dev->irq, info->irq, sizeof(dev->irq));
-
- if (info->length) {
- ret = request_resource(parent, &dev->res);
- if (ret) {
- printk("LoCoMo: failed to allocate resource for %s\n",
- dev->res.name);
- goto out;
- }
- }
-
- ret = device_register(&dev->dev);
- if (ret) {
- release_resource(&dev->res);
- out:
- kfree(dev);
- }
- return ret;
-}
-
-/**
- * locomo_probe - probe for a single LoCoMo chip.
- * @phys_addr: physical address of device.
- *
- * Probe for a LoCoMo chip. This must be called
- * before any other locomo-specific code.
- *
- * Returns:
- * %-ENODEV device not found.
- * %-EBUSY physical address already marked in-use.
- * %0 successful.
- */
-static int
-__locomo_probe(struct device *me, struct resource *mem, int irq)
-{
- struct locomo *lchip;
- unsigned long r;
- int i, ret = -ENODEV;
-
- lchip = kmalloc(sizeof(struct locomo), GFP_KERNEL);
- if (!lchip)
- return -ENOMEM;
-
- memset(lchip, 0, sizeof(struct locomo));
-
- lchip->dev = me;
- dev_set_drvdata(lchip->dev, lchip);
-
- lchip->phys = mem->start;
- lchip->irq = irq;
-
- /*
- * Map the whole region. This also maps the
- * registers for our children.
- */
- lchip->base = ioremap(mem->start, PAGE_SIZE);
- if (!lchip->base) {
- ret = -ENOMEM;
- goto out;
- }
-
- /* locomo initialize */
- locomo_writel(0, lchip->base + LOCOMO_ICR);
- /* KEYBOARD */
- locomo_writel(0, lchip->base + LOCOMO_KIC);
-
- /* GPIO */
- locomo_writel(0, lchip->base + LOCOMO_GPO);
- locomo_writel( (LOCOMO_GPIO(2) | LOCOMO_GPIO(3) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
- , lchip->base + LOCOMO_GPE);
- locomo_writel( (LOCOMO_GPIO(2) | LOCOMO_GPIO(3) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
- , lchip->base + LOCOMO_GPD);
- locomo_writel(0, lchip->base + LOCOMO_GIE);
-
- /* FrontLight */
- locomo_writel(0, lchip->base + LOCOMO_ALS);
- locomo_writel(0, lchip->base + LOCOMO_ALD);
- /* Longtime timer */
- locomo_writel(0, lchip->base + LOCOMO_LTINT);
- /* SPI */
- locomo_writel(0, lchip->base + LOCOMO_SPIIE);
-
- locomo_writel(6 + 8 + 320 + 30 - 10, lchip->base + LOCOMO_ASD);
- r = locomo_readl(lchip->base + LOCOMO_ASD);
- r |= 0x8000;
- locomo_writel(r, lchip->base + LOCOMO_ASD);
-
- locomo_writel(6 + 8 + 320 + 30 - 10 - 128 + 4, lchip->base + LOCOMO_HSD);
- r = locomo_readl(lchip->base + LOCOMO_HSD);
- r |= 0x8000;
- locomo_writel(r, lchip->base + LOCOMO_HSD);
-
- locomo_writel(128 / 8, lchip->base + LOCOMO_HSC);
-
- /* XON */
- locomo_writel(0x80, lchip->base + LOCOMO_TADC);
- udelay(1000);
- /* CLK9MEN */
- r = locomo_readl(lchip->base + LOCOMO_TADC);
- r |= 0x10;
- locomo_writel(r, lchip->base + LOCOMO_TADC);
- udelay(100);
-
- /* init DAC */
- r = locomo_readl(lchip->base + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
- locomo_writel(r, lchip->base + LOCOMO_DAC);
-
- r = locomo_readl(lchip->base + LOCOMO_VER);
- printk(KERN_INFO "LoCoMo Chip: %lu%lu\n", (r >> 8), (r & 0xff));
-
- /*
- * The interrupt controller must be initialised before any
- * other device to ensure that the interrupts are available.
- */
- if (lchip->irq != NO_IRQ)
- locomo_setup_irq(lchip);
-
- for (i = 0; i < ARRAY_SIZE(locomo_devices); i++)
- locomo_init_one_child(lchip, mem, &locomo_devices[i]);
-
- return 0;
-
- out:
- kfree(lchip);
- return ret;
-}
-
-static void __locomo_remove(struct locomo *lchip)
-{
- struct list_head *l, *n;
-
- list_for_each_safe(l, n, &lchip->dev->children) {
- struct device *d = list_to_dev(l);
-
- device_unregister(d);
- }
-
- if (lchip->irq != NO_IRQ) {
- set_irq_chained_handler(lchip->irq, NULL);
- set_irq_data(lchip->irq, NULL);
- }
-
- iounmap(lchip->base);
- kfree(lchip);
-}
-
-static int locomo_probe(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct resource *mem = NULL, *irq = NULL;
- int i;
-
- for (i = 0; i < pdev->num_resources; i++) {
- if (pdev->resource[i].flags & IORESOURCE_MEM)
- mem = &pdev->resource[i];
- if (pdev->resource[i].flags & IORESOURCE_IRQ)
- irq = &pdev->resource[i];
- }
-
- return __locomo_probe(dev, mem, irq ? irq->start : NO_IRQ);
-}
-
-static int locomo_remove(struct device *dev)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
-
- if (lchip) {
- __locomo_remove(lchip);
- dev_set_drvdata(dev, NULL);
-
- kfree(dev->saved_state);
- dev->saved_state = NULL;
- }
-
- return 0;
-}
-
-/*
- * Not sure if this should be on the system bus or not yet.
- * We really want some way to register a system device at
- * the per-machine level, and then have this driver pick
- * up the registered devices.
- */
-static struct device_driver locomo_device_driver = {
- .name = "locomo",
- .bus = &platform_bus_type,
- .probe = locomo_probe,
- .remove = locomo_remove,
-};
-
-/*
- * Get the parent device driver (us) structure
- * from a child function device
- */
-static inline struct locomo *locomo_chip_driver(struct locomo_dev *ldev)
-{
- return (struct locomo *)dev_get_drvdata(ldev->dev.parent);
-}
-
-/*
- * LoCoMo "Register Access Bus."
- *
- * We model this as a regular bus type, and hang devices directly
- * off this.
- */
-static int locomo_match(struct device *_dev, struct device_driver *_drv)
-{
- struct locomo_dev *dev = LOCOMO_DEV(_dev);
- struct locomo_driver *drv = LOCOMO_DRV(_drv);
-
- return dev->devid == drv->devid;
-}
-
-static int locomo_bus_suspend(struct device *dev, u32 state)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv && drv->suspend)
- ret = drv->suspend(ldev, state);
- return ret;
-}
-
-static int locomo_bus_resume(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv && drv->resume)
- ret = drv->resume(ldev);
- return ret;
-}
-
-static int locomo_bus_probe(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = -ENODEV;
-
- if (drv->probe)
- ret = drv->probe(ldev);
- return ret;
-}
-
-static int locomo_bus_remove(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv->remove)
- ret = drv->remove(ldev);
- return ret;
-}
-
-struct bus_type locomo_bus_type = {
- .name = "locomo-bus",
- .match = locomo_match,
- .suspend = locomo_bus_suspend,
- .resume = locomo_bus_resume,
-};
-
-int locomo_driver_register(struct locomo_driver *driver)
-{
- driver->drv.probe = locomo_bus_probe;
- driver->drv.remove = locomo_bus_remove;
- driver->drv.bus = &locomo_bus_type;
- return driver_register(&driver->drv);
-}
-
-void locomo_driver_unregister(struct locomo_driver *driver)
-{
- driver_unregister(&driver->drv);
-}
-
-static int __init locomo_init(void)
-{
- int ret = bus_register(&locomo_bus_type);
- if (ret == 0)
- driver_register(&locomo_device_driver);
- return ret;
-}
-
-static void __exit locomo_exit(void)
-{
- driver_unregister(&locomo_device_driver);
- bus_unregister(&locomo_bus_type);
-}
-
-module_init(locomo_init);
-module_exit(locomo_exit);
-
-MODULE_DESCRIPTION("Sharp LoCoMo core driver");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("John Lenz <jelenz@students.wisc.edu>");
-
-EXPORT_SYMBOL(locomo_driver_register);
-EXPORT_SYMBOL(locomo_driver_unregister);
+++ /dev/null
-/*
- * linux/arch/arm/common/time-acorn.c
- *
- * Copyright (c) 1996-2000 Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Changelog:
- * 24-Sep-1996 RMK Created
- * 10-Oct-1996 RMK Brought up to date with arch-sa110eval
- * 04-Dec-1997 RMK Updated for new arch/arm/time.c
- * 13=Jun-2004 DS Moved to arch/arm/common b/c shared w/CLPS7500
- */
-#include <linux/timex.h>
-#include <linux/init.h>
-
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/hardware/ioc.h>
-
-#include <asm/mach/time.h>
-
-static unsigned long ioctime_gettimeoffset(void)
-{
- unsigned int count1, count2, status;
- long offset;
-
- ioc_writeb (0, IOC_T0LATCH);
- barrier ();
- count1 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
- barrier ();
- status = ioc_readb(IOC_IRQREQA);
- barrier ();
- ioc_writeb (0, IOC_T0LATCH);
- barrier ();
- count2 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
-
- offset = count2;
- if (count2 < count1) {
- /*
- * We have not had an interrupt between reading count1
- * and count2.
- */
- if (status & (1 << 5))
- offset -= LATCH;
- } else if (count2 > count1) {
- /*
- * We have just had another interrupt between reading
- * count1 and count2.
- */
- offset -= LATCH;
- }
-
- offset = (LATCH - offset) * (tick_nsec / 1000);
- return (offset + LATCH/2) / LATCH;
-}
-
-void __init ioctime_init(void)
-{
- ioc_writeb(LATCH & 255, IOC_T0LTCHL);
- ioc_writeb(LATCH >> 8, IOC_T0LTCHH);
- ioc_writeb(0, IOC_T0GO);
-
- gettimeoffset = ioctime_gettimeoffset;
-}
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-ebsa285/time.h
- *
- * Copyright (C) 1998 Russell King.
- * Copyright (C) 1998 Phil Blundell
- *
- * CATS has a real-time clock, though the evaluation board doesn't.
- *
- * Changelog:
- * 21-Mar-1998 RMK Created
- * 27-Aug-1998 PJB CATS support
- * 28-Dec-1998 APH Made leds optional
- * 20-Jan-1999 RMK Started merge of EBSA285, CATS and NetWinder
- * 16-Mar-1999 RMK More support for EBSA285-like machines with RTCs in
- */
-
-#define RTC_PORT(x) (rtc_base+(x))
-#define RTC_ALWAYS_BCD 0
-
-#include <linux/timex.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/mc146818rtc.h>
-#include <linux/bcd.h>
-
-#include <asm/hardware/dec21285.h>
-
-#include <asm/hardware.h>
-#include <asm/irq.h>
-#include <asm/leds.h>
-#include <asm/mach-types.h>
-#include <asm/io.h>
-#include <asm/hardware/clps7111.h>
-
-#include <asm/mach/time.h>
-
-static int rtc_base;
-
-#define mSEC_10_from_14 ((14318180 + 100) / 200)
-
-static unsigned long isa_gettimeoffset(void)
-{
- int count;
-
- static int count_p = (mSEC_10_from_14/6); /* for the first call after boot */
- static unsigned long jiffies_p = 0;
-
- /*
- * cache volatile jiffies temporarily; we have IRQs turned off.
- */
- unsigned long jiffies_t;
-
- /* timer count may underflow right here */
- outb_p(0x00, 0x43); /* latch the count ASAP */
-
- count = inb_p(0x40); /* read the latched count */
-
- /*
- * We do this guaranteed double memory access instead of a _p
- * postfix in the previous port access. Wheee, hackady hack
- */
- jiffies_t = jiffies;
-
- count |= inb_p(0x40) << 8;
-
- /* Detect timer underflows. If we haven't had a timer tick since
- the last time we were called, and time is apparently going
- backwards, the counter must have wrapped during this routine. */
- if ((jiffies_t == jiffies_p) && (count > count_p))
- count -= (mSEC_10_from_14/6);
- else
- jiffies_p = jiffies_t;
-
- count_p = count;
-
- count = (((mSEC_10_from_14/6)-1) - count) * (tick_nsec / 1000);
- count = (count + (mSEC_10_from_14/6)/2) / (mSEC_10_from_14/6);
-
- return count;
-}
-
-static irqreturn_t
-isa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- timer_tick(regs);
-
- return IRQ_HANDLED;
-}
-
-static unsigned long __init get_isa_cmos_time(void)
-{
- unsigned int year, mon, day, hour, min, sec;
- int i;
-
- // check to see if the RTC makes sense.....
- if ((CMOS_READ(RTC_VALID) & RTC_VRT) == 0)
- return mktime(1970, 1, 1, 0, 0, 0);
-
- /* The Linux interpretation of the CMOS clock register contents:
- * When the Update-In-Progress (UIP) flag goes from 1 to 0, the
- * RTC registers show the second which has precisely just started.
- * Let's hope other operating systems interpret the RTC the same way.
- */
- /* read RTC exactly on falling edge of update flag */
- for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
- if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
- break;
-
- for (i = 0 ; i < 1000000 ; i++) /* must try at least 2.228 ms */
- if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
- break;
-
- do { /* Isn't this overkill ? UIP above should guarantee consistency */
- sec = CMOS_READ(RTC_SECONDS);
- min = CMOS_READ(RTC_MINUTES);
- hour = CMOS_READ(RTC_HOURS);
- day = CMOS_READ(RTC_DAY_OF_MONTH);
- mon = CMOS_READ(RTC_MONTH);
- year = CMOS_READ(RTC_YEAR);
- } while (sec != CMOS_READ(RTC_SECONDS));
-
- if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
- BCD_TO_BIN(sec);
- BCD_TO_BIN(min);
- BCD_TO_BIN(hour);
- BCD_TO_BIN(day);
- BCD_TO_BIN(mon);
- BCD_TO_BIN(year);
- }
- if ((year += 1900) < 1970)
- year += 100;
- return mktime(year, mon, day, hour, min, sec);
-}
-
-static int
-set_isa_cmos_time(void)
-{
- int retval = 0;
- int real_seconds, real_minutes, cmos_minutes;
- unsigned char save_control, save_freq_select;
- unsigned long nowtime = xtime.tv_sec;
-
- save_control = CMOS_READ(RTC_CONTROL); /* tell the clock it's being set */
- CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
-
- save_freq_select = CMOS_READ(RTC_FREQ_SELECT); /* stop and reset prescaler */
- CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
- cmos_minutes = CMOS_READ(RTC_MINUTES);
- if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- BCD_TO_BIN(cmos_minutes);
-
- /*
- * since we're only adjusting minutes and seconds,
- * don't interfere with hour overflow. This avoids
- * messing with unknown time zones but requires your
- * RTC not to be off by more than 15 minutes
- */
- real_seconds = nowtime % 60;
- real_minutes = nowtime / 60;
- if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
- real_minutes += 30; /* correct for half hour time zone */
- real_minutes %= 60;
-
- if (abs(real_minutes - cmos_minutes) < 30) {
- if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
- BIN_TO_BCD(real_seconds);
- BIN_TO_BCD(real_minutes);
- }
- CMOS_WRITE(real_seconds,RTC_SECONDS);
- CMOS_WRITE(real_minutes,RTC_MINUTES);
- } else
- retval = -1;
-
- /* The following flags have to be released exactly in this order,
- * otherwise the DS12887 (popular MC146818A clone with integrated
- * battery and quartz) will not reset the oscillator and will not
- * update precisely 500 ms later. You won't find this mentioned in
- * the Dallas Semiconductor data sheets, but who believes data
- * sheets anyway ... -- Markus Kuhn
- */
- CMOS_WRITE(save_control, RTC_CONTROL);
- CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-
- return retval;
-}
-
-
-static unsigned long timer1_latch;
-
-static unsigned long timer1_gettimeoffset (void)
-{
- unsigned long value = timer1_latch - *CSR_TIMER1_VALUE;
-
- return ((tick_nsec / 1000) * value) / timer1_latch;
-}
-
-static irqreturn_t
-timer1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- *CSR_TIMER1_CLR = 0;
-
- timer_tick(regs);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction footbridge_timer_irq = {
- .flags = SA_INTERRUPT
-};
-
-/*
- * Set up timer interrupt.
- */
-void __init footbridge_init_time(void)
-{
- if (machine_is_co285() ||
- machine_is_personal_server())
- /*
- * Add-in 21285s shouldn't access the RTC
- */
- rtc_base = 0;
- else
- rtc_base = 0x70;
-
- if (rtc_base) {
- int reg_d, reg_b;
-
- /*
- * Probe for the RTC.
- */
- reg_d = CMOS_READ(RTC_REG_D);
-
- /*
- * make sure the divider is set
- */
- CMOS_WRITE(RTC_REF_CLCK_32KHZ, RTC_REG_A);
-
- /*
- * Set control reg B
- * (24 hour mode, update enabled)
- */
- reg_b = CMOS_READ(RTC_REG_B) & 0x7f;
- reg_b |= 2;
- CMOS_WRITE(reg_b, RTC_REG_B);
-
- if ((CMOS_READ(RTC_REG_A) & 0x7f) == RTC_REF_CLCK_32KHZ &&
- CMOS_READ(RTC_REG_B) == reg_b) {
- struct timespec tv;
-
- /*
- * We have a RTC. Check the battery
- */
- if ((reg_d & 0x80) == 0)
- printk(KERN_WARNING "RTC: *** warning: CMOS battery bad\n");
-
- tv.tv_nsec = 0;
- tv.tv_sec = get_isa_cmos_time();
- do_settimeofday(&tv);
- set_rtc = set_isa_cmos_time;
- } else
- rtc_base = 0;
- }
-
- if (machine_is_ebsa285() ||
- machine_is_co285() ||
- machine_is_personal_server()) {
- gettimeoffset = timer1_gettimeoffset;
-
- timer1_latch = (mem_fclk_21285 + 8 * HZ) / (16 * HZ);
-
- *CSR_TIMER1_CLR = 0;
- *CSR_TIMER1_LOAD = timer1_latch;
- *CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_AUTORELOAD | TIMER_CNTL_DIV16;
-
- footbridge_timer_irq.name = "Timer1 Timer Tick";
- footbridge_timer_irq.handler = timer1_interrupt;
-
- setup_irq(IRQ_TIMER1, &footbridge_timer_irq);
-
- } else {
- /* enable PIT timer */
- /* set for periodic (4) and LSB/MSB write (0x30) */
- outb(0x34, 0x43);
- outb((mSEC_10_from_14/6) & 0xFF, 0x40);
- outb((mSEC_10_from_14/6) >> 8, 0x40);
-
- gettimeoffset = isa_gettimeoffset;
-
- footbridge_timer_irq.name = "ISA Timer Tick";
- footbridge_timer_irq.handler = isa_timer_interrupt;
-
- setup_irq(IRQ_ISA_TIMER, &footbridge_timer_irq);
- }
-}
+++ /dev/null
-/*
- * linux/arch/arm/mach-integrator/clock.c
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-
-#include <asm/semaphore.h>
-#include <asm/hardware/clock.h>
-#include <asm/hardware/icst525.h>
-
-#include "clock.h"
-
-static LIST_HEAD(clocks);
-static DECLARE_MUTEX(clocks_sem);
-
-struct clk *clk_get(struct device *dev, const char *id)
-{
- struct clk *p, *clk = ERR_PTR(-ENOENT);
-
- down(&clocks_sem);
- list_for_each_entry(p, &clocks, node) {
- if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
- clk = p;
- break;
- }
- }
- up(&clocks_sem);
-
- return clk;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
- module_put(clk->owner);
-}
-EXPORT_SYMBOL(clk_put);
-
-int clk_enable(struct clk *clk)
-{
- return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_disable);
-
-int clk_use(struct clk *clk)
-{
- return 0;
-}
-EXPORT_SYMBOL(clk_use);
-
-void clk_unuse(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_unuse);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
- return clk->rate;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-long clk_round_rate(struct clk *clk, unsigned long rate)
-{
- return rate;
-}
-EXPORT_SYMBOL(clk_round_rate);
-
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
- int ret = -EIO;
- if (clk->setvco) {
- struct icst525_vco vco;
-
- vco = icst525_khz_to_vco(clk->params, rate);
- clk->rate = icst525_khz(clk->params, vco);
-
- printk("Clock %s: setting VCO reg params: S=%d R=%d V=%d\n",
- clk->name, vco.s, vco.r, vco.v);
-
- clk->setvco(clk, vco);
- ret = 0;
- }
- return 0;
-}
-EXPORT_SYMBOL(clk_set_rate);
-
-/*
- * These are fixed clocks.
- */
-static struct clk kmi_clk = {
- .name = "KMIREFCLK",
- .rate = 24000000,
-};
-
-static struct clk uart_clk = {
- .name = "UARTCLK",
- .rate = 14745600,
-};
-
-int clk_register(struct clk *clk)
-{
- down(&clocks_sem);
- list_add(&clk->node, &clocks);
- up(&clocks_sem);
- return 0;
-}
-EXPORT_SYMBOL(clk_register);
-
-void clk_unregister(struct clk *clk)
-{
- down(&clocks_sem);
- list_del(&clk->node);
- up(&clocks_sem);
-}
-EXPORT_SYMBOL(clk_unregister);
-
-static int __init clk_init(void)
-{
- clk_register(&kmi_clk);
- clk_register(&uart_clk);
- return 0;
-}
-arch_initcall(clk_init);
+++ /dev/null
-/*
- * linux/arch/arm/mach-integrator/clock.h
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-struct module;
-struct icst525_params;
-
-struct clk {
- struct list_head node;
- unsigned long rate;
- struct module *owner;
- const char *name;
- const struct icst525_params *params;
- void *data;
- void (*setvco)(struct clk *, struct icst525_vco vco);
-};
-
-int clk_register(struct clk *clk);
-void clk_unregister(struct clk *clk);
+++ /dev/null
-/*
- * arch/arm/mach-lh7a40x/time.c
- *
- * Copyright (C) 2004 Logic Product Development
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- */
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/leds.h>
-
-#include <asm/mach/time.h>
-
-#if HZ < 100
-# define TIMER_CONTROL TIMER_CONTROL1
-# define TIMER_LOAD TIMER_LOAD1
-# define TIMER_CONSTANT (508469/HZ)
-# define TIMER_MODE (TIMER_C_ENABLE | TIMER_C_PERIODIC | TIMER_C_508KHZ)
-# define TIMER_EOI TIMER_EOI1
-# define TIMER_IRQ IRQ_T1UI
-#else
-# define TIMER_CONTROL TIMER_CONTROL3
-# define TIMER_LOAD TIMER_LOAD3
-# define TIMER_CONSTANT (3686400/HZ)
-# define TIMER_MODE (TIMER_C_ENABLE | TIMER_C_PERIODIC)
-# define TIMER_EOI TIMER_EOI3
-# define TIMER_IRQ IRQ_T3UI
-#endif
-
-static irqreturn_t
-lh7a40x_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- TIMER_EOI = 0;
- timer_tick(regs);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction lh7a40x_timer_irq = {
- .name = "LHA740x Timer Tick",
- .flags = SA_INTERRUPT,
- .handler = lh7a40x_timer_interrupt
-};
-
-void __init lh7a40x_init_time(void)
-{
- /* Stop/disable all timers */
- TIMER_CONTROL1 = 0;
- TIMER_CONTROL2 = 0;
- TIMER_CONTROL3 = 0;
-
- setup_irq (TIMER_IRQ, &lh7a40x_timer_irq);
-
- TIMER_LOAD = TIMER_CONSTANT;
- TIMER_CONTROL = TIMER_MODE;
-}
-
+++ /dev/null
-/*
- * linux/arch/arm/mach-omap/innovator1510.c
- *
- * Board specific inits for OMAP-1510 Innovator
- *
- * Copyright (C) 2001 RidgeRun, Inc.
- * Author: Greg Lonnon <glonnon@ridgerun.com>
- *
- * Copyright (C) 2002 MontaVista Software, Inc.
- *
- * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
- * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony@atomide.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/device.h>
-
-#include <asm/hardware.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include <asm/arch/clocks.h>
-#include <asm/arch/gpio.h>
-#include <asm/arch/fpga.h>
-
-#include "common.h"
-
-extern int omap_gpio_init(void);
-
-void innovator_init_irq(void)
-{
- omap_init_irq();
- omap_gpio_init();
- fpga_init_irq();
-}
-
-static struct resource smc91x_resources[] = {
- [0] = {
- .start = OMAP1510P1_FPGA_ETHR_START, /* Physical */
- .end = OMAP1510P1_FPGA_ETHR_START + 16,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = INT_ETHER,
- .end = INT_ETHER,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device smc91x_device = {
- .name = "smc91x",
- .id = 0,
- .num_resources = ARRAY_SIZE(smc91x_resources),
- .resource = smc91x_resources,
-};
-
-static struct platform_device *devices[] __initdata = {
- &smc91x_device,
-};
-
-static void __init innovator_init(void)
-{
- if (!machine_is_innovator())
- return;
-
- (void) platform_add_devices(devices, ARRAY_SIZE(devices));
-}
-
-/* Only FPGA needs to be mapped here. All others are done with ioremap */
-static struct map_desc innovator_io_desc[] __initdata = {
-{ OMAP1510P1_FPGA_BASE, OMAP1510P1_FPGA_START, OMAP1510P1_FPGA_SIZE,
- MT_DEVICE },
-};
-
-static void __init innovator_map_io(void)
-{
- omap_map_io();
- iotable_init(innovator_io_desc, ARRAY_SIZE(innovator_io_desc));
-
- /* Dump the Innovator FPGA rev early - useful info for support. */
- printk("Innovator FPGA Rev %d.%d Board Rev %d\n",
- fpga_read(OMAP1510P1_FPGA_REV_HIGH),
- fpga_read(OMAP1510P1_FPGA_REV_LOW),
- fpga_read(OMAP1510P1_FPGA_BOARD_REV));
-}
-
-MACHINE_START(INNOVATOR, "TI-Innovator/OMAP1510")
- MAINTAINER("MontaVista Software, Inc.")
- BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
- BOOT_PARAMS(0x10000100)
- MAPIO(innovator_map_io)
- INITIRQ(innovator_init_irq)
- INIT_MACHINE(innovator_init)
-MACHINE_END
+++ /dev/null
-/*
- * linux/arch/arm/mach-omap/innovator1610.c
- *
- * This file contains Innovator-specific code.
- *
- * Copyright (C) 2002 MontaVista Software, Inc.
- *
- * Copyright (C) 2001 RidgeRun, Inc.
- * Author: Greg Lonnon <glonnon@ridgerun.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/major.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/errno.h>
-
-#include <asm/setup.h>
-#include <asm/page.h>
-#include <asm/hardware.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <asm/arch/irqs.h>
-
-#include "common.h"
-
-void
-innovator_init_irq(void)
-{
- omap_init_irq();
-}
-
-static struct resource smc91x_resources[] = {
- [0] = {
- .start = OMAP1610_ETHR_START, /* Physical */
- .end = OMAP1610_ETHR_START + SZ_4K,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = 0, /* Really GPIO 0 */
- .end = 0,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device smc91x_device = {
- .name = "smc91x",
- .id = 0,
- .num_resources = ARRAY_SIZE(smc91x_resources),
- .resource = smc91x_resources,
-};
-
-static struct platform_device *devices[] __initdata = {
- &smc91x_device,
-};
-
-static void __init innovator_init(void)
-{
- if (!machine_is_innovator())
- return;
-
- (void) platform_add_devices(devices, ARRAY_SIZE(devices));
-}
-
-static struct map_desc innovator_io_desc[] __initdata = {
-{ OMAP1610_ETHR_BASE, OMAP1610_ETHR_START, OMAP1610_ETHR_SIZE,MT_DEVICE },
-{ OMAP1610_NOR_FLASH_BASE, OMAP1610_NOR_FLASH_START, OMAP1610_NOR_FLASH_SIZE,
- MT_DEVICE },
-};
-
-static void __init innovator_map_io(void)
-{
- omap_map_io();
- iotable_init(innovator_io_desc, ARRAY_SIZE(innovator_io_desc));
-}
-
-MACHINE_START(INNOVATOR, "TI-Innovator/OMAP1610")
- MAINTAINER("MontaVista Software, Inc.")
- BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
- BOOT_PARAMS(0x10000100)
- MAPIO(innovator_map_io)
- INITIRQ(innovator_init_irq)
- INIT_MACHINE(innovator_init)
-MACHINE_END
-
+++ /dev/null
-/*
- * linux/arch/arm/mach-omap/irq.h
- *
- * OMAP specific interrupt bank definitions
- *
- * Copyright (C) 2004 Nokia Corporation
- * Written by Tony Lindgren <tony@atomide.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#define OMAP_IRQ_TYPE710 1
-#define OMAP_IRQ_TYPE730 2
-#define OMAP_IRQ_TYPE1510 3
-#define OMAP_IRQ_TYPE1610 4
-#define OMAP_IRQ_TYPE1710 5
-
-#define MAX_NR_IRQ_BANKS 4
-
-#define BANK_NR_IRQS 32
-
-struct omap_irq_desc {
- unsigned int cpu_type;
- unsigned int start_irq;
- unsigned long level_map;
- unsigned long base_reg;
- unsigned long mask_reg;
- unsigned long ack_reg;
- struct irqchip *handler;
-};
-
-struct omap_irq_bank {
- unsigned int start_irq;
- unsigned long level_map;
- unsigned long base_reg;
- unsigned long mask_reg;
- unsigned long ack_reg;
- struct irqchip *handler;
-};
-
-static void omap_offset_ack_irq(unsigned int irq);
-static void omap_offset_mask_irq(unsigned int irq);
-static void omap_offset_unmask_irq(unsigned int irq);
-static void omap_offset_mask_ack_irq(unsigned int irq);
-
-/* NOTE: These will not work if irq bank offset != 0x100 */
-#define IRQ_TO_BANK(irq) (irq >> 5)
-#define IRQ_BIT(irq) (irq & 0x1f)
-#define BANK_OFFSET(bank) ((bank - 1) * 0x100)
-
-static struct irqchip omap_offset_irq = {
- .ack = omap_offset_mask_ack_irq,
- .mask = omap_offset_mask_irq,
- .unmask = omap_offset_unmask_irq,
-};
-
-/*
- * OMAP-730 interrupt banks
- */
-static struct omap_irq_desc omap730_bank0_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE730,
- .start_irq = 0,
- .level_map = 0xb3f8e22f,
- .base_reg = OMAP_IH1_BASE,
- .mask_reg = OMAP_IH1_BASE + IRQ_MIR,
- .ack_reg = OMAP_IH1_BASE + IRQ_CONTROL_REG,
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap730_bank1_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE730,
- .start_irq = 32,
- .level_map = 0xfdb9c1f2,
- .base_reg = OMAP_IH2_BASE,
- .mask_reg = OMAP_IH2_BASE + IRQ_MIR,
- .ack_reg = OMAP_IH2_BASE + IRQ_CONTROL_REG,
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap730_bank2_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE730,
- .start_irq = 64,
- .level_map = 0x800040f3,
- .base_reg = OMAP_IH2_BASE + 0x100,
- .mask_reg = OMAP_IH2_BASE + 0x100 + IRQ_MIR,
- .ack_reg = OMAP_IH2_BASE + IRQ_CONTROL_REG, /* Not replicated */
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
-
-/*
- * OMAP-1510 interrupt banks
- */
-static struct omap_irq_desc omap1510_bank0_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE1510,
- .start_irq = 0,
- .level_map = 0xb3febfff,
- .base_reg = OMAP_IH1_BASE,
- .mask_reg = OMAP_IH1_BASE + IRQ_MIR,
- .ack_reg = OMAP_IH1_BASE + IRQ_CONTROL_REG,
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap1510_bank1_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE1510,
- .start_irq = 32,
- .level_map = 0xffbfffed,
- .base_reg = OMAP_IH2_BASE,
- .mask_reg = OMAP_IH2_BASE + IRQ_MIR,
- .ack_reg = OMAP_IH2_BASE + IRQ_CONTROL_REG,
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
-
-/*
- * OMAP-1610 interrupt banks
- */
-static struct omap_irq_desc omap1610_bank0_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE1610,
- .start_irq = 0,
- .level_map = 0xb3fefe8f,
- .base_reg = OMAP_IH1_BASE,
- .mask_reg = OMAP_IH1_BASE + IRQ_MIR,
- .ack_reg = OMAP_IH1_BASE + IRQ_CONTROL_REG,
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap1610_bank1_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE1610,
- .start_irq = 32,
- .level_map = 0xfffff7ff,
- .base_reg = OMAP_IH2_BASE,
- .mask_reg = OMAP_IH2_BASE + IRQ_MIR,
- .ack_reg = OMAP_IH2_BASE + IRQ_CONTROL_REG,
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap1610_bank2_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE1610,
- .start_irq = 64,
- .level_map = 0xffffffff,
- .base_reg = OMAP_IH2_BASE + 0x100,
- .mask_reg = OMAP_IH2_BASE + 0x100 + IRQ_MIR,
- .ack_reg = OMAP_IH2_BASE + IRQ_CONTROL_REG, /* Not replicated */
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap1610_bank3_irqs __initdata = {
- .cpu_type = OMAP_IRQ_TYPE1610,
- .start_irq = 96,
- .level_map = 0xffffffff,
- .base_reg = OMAP_IH2_BASE + 0x200,
- .mask_reg = OMAP_IH2_BASE + 0x200 + IRQ_MIR,
- .ack_reg = OMAP_IH2_BASE + IRQ_CONTROL_REG, /* Not replicated */
- .handler = &omap_offset_irq, /* IH2 regs at 0x100 offsets */
-};
+++ /dev/null
-/*
- * linux/arch/arm/mach-omap/generic.c
- *
- * Modified from innovator.c
- *
- * Code for generic OMAP board. Should work on many OMAP systems where
- * the device drivers take care of all the necessary hardware initialization.
- * Do not put any board specific code to this file; create a new machine
- * type if you need custom low-level initializations.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/device.h>
-
-#include <asm/hardware.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include <asm/arch/clocks.h>
-#include <asm/arch/gpio.h>
-#include <asm/arch/mux.h>
-
-#include "common.h"
-
-static void __init omap_generic_init_irq(void)
-{
- omap_init_irq();
-}
-
-/*
- * Muxes the serial ports on
- */
-static void __init omap_early_serial_init(void)
-{
- omap_cfg_reg(UART1_TX);
- omap_cfg_reg(UART1_RTS);
-
- omap_cfg_reg(UART2_TX);
- omap_cfg_reg(UART2_RTS);
-
- omap_cfg_reg(UART3_TX);
- omap_cfg_reg(UART3_RX);
-}
-
-static void __init omap_generic_init(void)
-{
- if (!machine_is_omap_generic())
- return;
-
- /*
- * Make sure the serial ports are muxed on at this point.
- * You have to mux them off in device drivers later on
- * if not needed.
- */
- if (cpu_is_omap1510()) {
- omap_early_serial_init();
- }
-}
-
-static void __init omap_generic_map_io(void)
-{
- omap_map_io();
-}
-
-MACHINE_START(OMAP_GENERIC, "Generic OMAP-1510/1610")
- MAINTAINER("Tony Lindgren <tony@atomide.com>")
- BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
- BOOT_PARAMS(0x10000100)
- MAPIO(omap_generic_map_io)
- INITIRQ(omap_generic_init_irq)
- INIT_MACHINE(omap_generic_init)
-MACHINE_END
+++ /dev/null
-/*
- * linux/arch/arm/mach-omap/omap-perseus2.c
- *
- * Modified from omap-generic.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/device.h>
-
-#include <asm/hardware.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include <asm/arch/clocks.h>
-#include <asm/arch/gpio.h>
-#include <asm/arch/mux.h>
-
-#include <asm/arch/omap-perseus2.h>
-
-#include "common.h"
-
-void omap_perseus2_init_irq(void)
-{
- omap_init_irq();
-}
-
-static struct resource smc91x_resources[] = {
- [0] = {
- .start = OMAP730_FPGA_ETHR_START, /* Physical */
- .end = OMAP730_FPGA_ETHR_START + SZ_4K,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = 0,
- .end = 0,
- .flags = INT_ETHER,
- },
-};
-
-static struct platform_device smc91x_device = {
- .name = "smc91x",
- .id = 0,
- .num_resources = ARRAY_SIZE(smc91x_resources),
- .resource = smc91x_resources,
-};
-
-static struct platform_device *devices[] __initdata = {
- &smc91x_device,
-};
-
-static void __init omap_perseus2_init(void)
-{
- if (!machine_is_omap_perseus2())
- return;
-
- (void) platform_add_devices(devices, ARRAY_SIZE(devices));
-}
-
-/* Only FPGA needs to be mapped here. All others are done with ioremap */
-static struct map_desc omap_perseus2_io_desc[] __initdata = {
- {OMAP730_FPGA_BASE, OMAP730_FPGA_START, OMAP730_FPGA_SIZE,
- MT_DEVICE},
-};
-
-static void __init omap_perseus2_map_io(void)
-{
- omap_map_io();
- iotable_init(omap_perseus2_io_desc,
- ARRAY_SIZE(omap_perseus2_io_desc));
-
- /* Early, board-dependent init */
-
- /*
- * Hold GSM Reset until needed
- */
- *DSP_M_CTL &= ~1;
-
- /*
- * UARTs -> done automagically by 8250 driver
- */
-
- /*
- * CSx timings, GPIO Mux ... setup
- */
-
- /* Flash: CS0 timings setup */
- *((volatile __u32 *) OMAP_FLASH_CFG_0) = 0x0000fff3;
- *((volatile __u32 *) OMAP_FLASH_ACFG_0) = 0x00000088;
-
- /*
- * Ethernet support trough the debug board
- * CS1 timings setup
- */
- *((volatile __u32 *) OMAP_FLASH_CFG_1) = 0x0000fff3;
- *((volatile __u32 *) OMAP_FLASH_ACFG_1) = 0x00000000;
-
- /*
- * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
- * It is used as the Ethernet controller interrupt
- */
- *((volatile __u32 *) PERSEUS2_IO_CONF_9) &= 0x1FFFFFFF;
-}
-
-MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
- MAINTAINER("Kevin Hilman <k-hilman@ti.com>")
- BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
- BOOT_PARAMS(0x10000100)
- MAPIO(omap_perseus2_map_io)
- INITIRQ(omap_perseus2_init_irq)
- INIT_MACHINE(omap_perseus2_init)
-MACHINE_END
+++ /dev/null
-/*
- * arch/arm/mach-omap/time.c
- *
- * OMAP Timer Tick
- *
- * Copyright (C) 2000 RidgeRun, Inc.
- * Author: Greg Lonnon <glonnon@ridgerun.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-
-#include <asm/system.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/leds.h>
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-#include <asm/mach/time.h>
-#include <asm/arch/clocks.h>
-
-#ifndef __instrument
-#define __instrument
-#define __noinstrument __attribute__ ((no_instrument_function))
-#endif
-
-typedef struct {
- u32 cntl; /* CNTL_TIMER, R/W */
- u32 load_tim; /* LOAD_TIM, W */
- u32 read_tim; /* READ_TIM, R */
-} mputimer_regs_t;
-
-#define mputimer_base(n) \
- ((volatile mputimer_regs_t*)IO_ADDRESS(OMAP_MPUTIMER_BASE + \
- (n)*OMAP_MPUTIMER_OFFSET))
-
-static inline unsigned long timer32k_read(int reg) {
- unsigned long val;
- val = omap_readw(reg + OMAP_32kHz_TIMER_BASE);
- return val;
-}
-static inline void timer32k_write(int reg,int val) {
- omap_writew(val, reg + OMAP_32kHz_TIMER_BASE);
-}
-
-/*
- * How long is the timer interval? 100 HZ, right...
- * IRQ rate = (TVR + 1) / 32768 seconds
- * TVR = 32768 * IRQ_RATE -1
- * IRQ_RATE = 1/100
- * TVR = 326
- */
-#define TIMER32k_PERIOD 326
-//#define TIMER32k_PERIOD 0x7ff
-
-static inline void start_timer32k(void) {
- timer32k_write(TIMER32k_CR,
- TIMER32k_TSS | TIMER32k_TRB |
- TIMER32k_INT | TIMER32k_ARL);
-}
-
-#ifdef CONFIG_MACH_OMAP_PERSEUS2
-/*
- * After programming PTV with 0 and setting the MPUTIM_CLOCK_ENABLE
- * (external clock enable) bit, the timer count rate is 6.5 MHz (13
- * MHZ input/2). !! The divider by 2 is undocumented !!
- */
-#define MPUTICKS_PER_SEC (13000000/2)
-#else
-/*
- * After programming PTV with 0, the timer count rate is 6 MHz.
- * WARNING! this must be an even number, or machinecycles_to_usecs
- * below will break.
- */
-#define MPUTICKS_PER_SEC (12000000/2)
-#endif
-
-static int mputimer_started[3] = {0,0,0};
-
-static inline void __noinstrument start_mputimer(int n,
- unsigned long load_val)
-{
- volatile mputimer_regs_t* timer = mputimer_base(n);
-
- mputimer_started[n] = 0;
- timer->cntl = MPUTIM_CLOCK_ENABLE;
- udelay(1);
-
- timer->load_tim = load_val;
- udelay(1);
- timer->cntl = (MPUTIM_CLOCK_ENABLE | MPUTIM_AR | MPUTIM_ST);
- mputimer_started[n] = 1;
-}
-
-static inline unsigned long __noinstrument
-read_mputimer(int n)
-{
- volatile mputimer_regs_t* timer = mputimer_base(n);
- return (mputimer_started[n] ? timer->read_tim : 0);
-}
-
-void __noinstrument start_mputimer1(unsigned long load_val)
-{
- start_mputimer(0, load_val);
-}
-void __noinstrument start_mputimer2(unsigned long load_val)
-{
- start_mputimer(1, load_val);
-}
-void __noinstrument start_mputimer3(unsigned long load_val)
-{
- start_mputimer(2, load_val);
-}
-
-unsigned long __noinstrument read_mputimer1(void)
-{
- return read_mputimer(0);
-}
-unsigned long __noinstrument read_mputimer2(void)
-{
- return read_mputimer(1);
-}
-unsigned long __noinstrument read_mputimer3(void)
-{
- return read_mputimer(2);
-}
-
-unsigned long __noinstrument do_getmachinecycles(void)
-{
- return 0 - read_mputimer(0);
-}
-
-unsigned long __noinstrument machinecycles_to_usecs(unsigned long mputicks)
-{
- /* Round up to nearest usec */
- return ((mputicks * 1000) / (MPUTICKS_PER_SEC / 2 / 1000) + 1) >> 1;
-}
-
-/*
- * This marks the time of the last system timer interrupt
- * that was *processed by the ISR* (timer 2).
- */
-static unsigned long systimer_mark;
-
-static unsigned long omap_gettimeoffset(void)
-{
- /* Return elapsed usecs since last system timer ISR */
- return machinecycles_to_usecs(do_getmachinecycles() - systimer_mark);
-}
-
-static irqreturn_t
-omap_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned long now, ilatency;
-
- /*
- * Mark the time at which the timer interrupt ocurred using
- * timer1. We need to remove interrupt latency, which we can
- * retrieve from the current system timer2 counter. Both the
- * offset timer1 and the system timer2 are counting at 6MHz,
- * so we're ok.
- */
- now = 0 - read_mputimer1();
- ilatency = MPUTICKS_PER_SEC / 100 - read_mputimer2();
- systimer_mark = now - ilatency;
-
- timer_tick(regs);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction omap_timer_irq = {
- .name = "OMAP Timer Tick",
- .flags = SA_INTERRUPT,
- .handler = omap_timer_interrupt
-};
-
-void __init omap_init_time(void)
-{
- /* Since we don't call request_irq, we must init the structure */
- gettimeoffset = omap_gettimeoffset;
-
-#ifdef OMAP1510_USE_32KHZ_TIMER
- timer32k_write(TIMER32k_CR, 0x0);
- timer32k_write(TIMER32k_TVR,TIMER32k_PERIOD);
- setup_irq(INT_OS_32kHz_TIMER, &omap_timer_irq);
- start_timer32k();
-#else
- setup_irq(INT_TIMER2, &omap_timer_irq);
- start_mputimer2(MPUTICKS_PER_SEC / 100 - 1);
-#endif
-}
-
+++ /dev/null
-/*
- * arch/arm/mach-pxa/time.c
- *
- * Author: Nicolas Pitre
- * Created: Jun 15, 2001
- * Copyright: MontaVista Software Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-
-#include <asm/system.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/leds.h>
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-#include <asm/mach/time.h>
-
-
-static inline unsigned long pxa_get_rtc_time(void)
-{
- return RCNR;
-}
-
-static int pxa_set_rtc(void)
-{
- unsigned long current_time = xtime.tv_sec;
-
- if (RTSR & RTSR_ALE) {
- /* make sure not to forward the clock over an alarm */
- unsigned long alarm = RTAR;
- if (current_time >= alarm && alarm >= RCNR)
- return -ERESTARTSYS;
- }
- RCNR = current_time;
- return 0;
-}
-
-/* IRQs are disabled before entering here from do_gettimeofday() */
-static unsigned long pxa_gettimeoffset (void)
-{
- long ticks_to_match, elapsed, usec;
-
- /* Get ticks before next timer match */
- ticks_to_match = OSMR0 - OSCR;
-
- /* We need elapsed ticks since last match */
- elapsed = LATCH - ticks_to_match;
-
- /* don't get fooled by the workaround in pxa_timer_interrupt() */
- if (elapsed <= 0)
- return 0;
-
- /* Now convert them to usec */
- usec = (unsigned long)(elapsed * (tick_nsec / 1000))/LATCH;
-
- return usec;
-}
-
-static irqreturn_t
-pxa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- int next_match;
-
- /* Loop until we get ahead of the free running timer.
- * This ensures an exact clock tick count and time accuracy.
- * IRQs are disabled inside the loop to ensure coherence between
- * lost_ticks (updated in do_timer()) and the match reg value, so we
- * can use do_gettimeofday() from interrupt handlers.
- *
- * HACK ALERT: it seems that the PXA timer regs aren't updated right
- * away in all cases when a write occurs. We therefore compare with
- * 8 instead of 0 in the while() condition below to avoid missing a
- * match if OSCR has already reached the next OSMR value.
- * Experience has shown that up to 6 ticks are needed to work around
- * this problem, but let's use 8 to be conservative. Note that this
- * affect things only when the timer IRQ has been delayed by nearly
- * exactly one tick period which should be a pretty rare event.
- */
- do {
- timer_tick(regs);
- OSSR = OSSR_M0; /* Clear match on timer 0 */
- next_match = (OSMR0 += LATCH);
- } while( (signed long)(next_match - OSCR) <= 8 );
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction pxa_timer_irq = {
- .name = "PXA Timer Tick",
- .flags = SA_INTERRUPT,
- .handler = pxa_timer_interrupt
-};
-
-void __init pxa_init_time(void)
-{
- struct timespec tv;
-
- gettimeoffset = pxa_gettimeoffset;
- set_rtc = pxa_set_rtc;
-
- tv.tv_nsec = 0;
- tv.tv_sec = pxa_get_rtc_time();
- do_settimeofday(&tv);
-
- OSMR0 = 0; /* set initial match at 0 */
- OSSR = 0xf; /* clear status on all timers */
- setup_irq(IRQ_OST0, &pxa_timer_irq);
- OIER |= OIER_E0; /* enable match on timer 0 to cause interrupts */
- OSCR = 0; /* initialize free-running timer, force first match */
-}
-
+++ /dev/null
-/* linux/arch/arm/mach-s3c2410/gpio.c
- *
- * Copyright (c) 2004 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C2410 GPIO support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-
-#include <asm/hardware.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-
-#include <asm/arch/regs-gpio.h>
-
-void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function)
-{
- unsigned long base = S3C2410_GPIO_BASE(pin);
- unsigned long shift = 1;
- unsigned long mask = 3;
- unsigned long con;
- unsigned long flags;
-
- if (pin < S3C2410_GPIO_BANKB) {
- shift = 0;
- mask = 1;
- }
-
- mask <<= S3C2410_GPIO_OFFSET(pin);
-
- local_irq_save(flags);
-
- con = __raw_readl(base + 0x00);
-
- con &= mask << shift;
- con |= function;
-
- __raw_writel(con, base + 0x00);
-
- local_irq_restore(flags);
-}
-
-void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
-{
- unsigned long base = S3C2410_GPIO_BASE(pin);
- unsigned long offs = S3C2410_GPIO_OFFSET(pin);
- unsigned long flags;
- unsigned long up;
-
- if (pin < S3C2410_GPIO_BANKB)
- return;
-
- local_irq_save(flags);
-
- up = __raw_readl(base + 0x08);
- up &= 1 << offs;
- up |= to << offs;
- __raw_writel(up, base + 0x08);
-
- local_irq_restore(flags);
-}
-
-void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
-{
- unsigned long base = S3C2410_GPIO_BASE(pin);
- unsigned long offs = S3C2410_GPIO_OFFSET(pin);
- unsigned long flags;
- unsigned long dat;
-
- local_irq_save(flags);
-
- dat = __raw_readl(base + 0x04);
- dat &= 1 << offs;
- dat |= to << offs;
- __raw_writel(dat, base + 0x04);
-
- local_irq_restore(flags);
-}
+++ /dev/null
-/* linux/include/asm-arm/arch-s3c2410/time.h
- *
- * Copyright (C) 2003 Simtec Electronics <linux@simtec.co.uk>
- * Ben Dooks, <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <asm/system.h>
-#include <asm/leds.h>
-#include <asm/mach-types.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/arch/map.h>
-#include <asm/arch/regs-timer.h>
-#include <asm/mach/time.h>
-
-static unsigned long timer_startval;
-static unsigned long timer_ticks_usec;
-
-#ifdef CONFIG_S3C2410_RTC
-extern void s3c2410_rtc_check();
-#endif
-
-/* with an 12MHz clock, we get 12 ticks per-usec
- */
-
-
-/***
- * Returns microsecond since last clock interrupt. Note that interrupts
- * will have been disabled by do_gettimeoffset()
- * IRQs are disabled before entering here from do_gettimeofday()
- */
-static unsigned long s3c2410_gettimeoffset (void)
-{
- unsigned long tdone;
- unsigned long usec;
-
- /* work out how many ticks have gone since last timer interrupt */
-
- tdone = timer_startval - __raw_readl(S3C2410_TCNTO(4));
-
- /* currently, tcnt is in 12MHz units, but this may change
- * for non-bast machines...
- */
-
- usec = tdone / timer_ticks_usec;
-
- return usec;
-}
-
-
-/*
- * IRQ handler for the timer
- */
-static irqreturn_t
-s3c2410_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- timer_tick(regs);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction s3c2410_timer_irq = {
- .name = "S32410 Timer Tick",
- .flags = SA_INTERRUPT,
- .handler = s3c2410_timer_interrupt
-};
-
-/*
- * Set up timer interrupt, and return the current time in seconds.
- *
- * Currently we only use timer4, as it is the only timer which has no
- * other function that can be exploited externally
- */
-void __init s3c2410_init_time (void)
-{
- unsigned long tcon;
- unsigned long tcnt;
- unsigned long tcfg1;
- unsigned long tcfg0;
-
- gettimeoffset = s3c2410_gettimeoffset;
-
- tcnt = 0xffff; /* default value for tcnt */
-
- /* read the current timer configuration bits */
-
- tcon = __raw_readl(S3C2410_TCON);
- tcfg1 = __raw_readl(S3C2410_TCFG1);
- tcfg0 = __raw_readl(S3C2410_TCFG0);
-
- /* configure the system for whichever machine is in use */
-
- if (machine_is_bast() || machine_is_vr1000()) {
- timer_ticks_usec = 12; /* timer is at 12MHz */
- tcnt = (timer_ticks_usec * (1000*1000)) / HZ;
- }
-
- /* for the h1940, we use the pclk from the core to generate
- * the timer values. since 67.5MHz is not a value we can directly
- * generate the timer value from, we need to pre-scale and
- * divied before using it.
- *
- * overall divsior to get 200Hz is 337500
- * we can fit tcnt if we pre-scale by 6, producing a tick rate
- * of 11.25MHz, and a tcnt of 56250.
- */
-
- if (machine_is_h1940() || machine_is_smdk2410() ) {
- timer_ticks_usec = s3c2410_pclk / (1000*1000);
- timer_ticks_usec /= 6;
-
- tcfg1 &= ~S3C2410_TCFG1_MUX4_MASK;
- tcfg1 |= S3C2410_TCFG1_MUX4_DIV2;
-
- tcfg0 &= ~S3C2410_TCFG_PRESCALER1_MASK;
- tcfg0 |= ((6 - 1) / 2) << S3C2410_TCFG_PRESCALER1_SHIFT;
-
- tcnt = (s3c2410_pclk / 6) / HZ;
- }
-
-
- printk("setup_timer tcon=%08lx, tcnt %04lx, tcfg %08lx,%08lx\n",
- tcon, tcnt, tcfg0, tcfg1);
-
- /* check to see if timer is within 16bit range... */
- if (tcnt > 0xffff) {
- panic("setup_timer: HZ is too small, cannot configure timer!");
- return;
- }
-
- __raw_writel(tcfg1, S3C2410_TCFG1);
- __raw_writel(tcfg0, S3C2410_TCFG0);
-
- timer_startval = tcnt;
- __raw_writel(tcnt, S3C2410_TCNTB(4));
-
- /* ensure timer is stopped... */
-
- tcon &= ~(7<<20);
- tcon |= S3C2410_TCON_T4RELOAD;
- tcon |= S3C2410_TCON_T4MANUALUPD;
-
- __raw_writel(tcon, S3C2410_TCON);
- __raw_writel(tcnt, S3C2410_TCNTB(4));
- __raw_writel(tcnt, S3C2410_TCMPB(4));
-
- setup_irq(IRQ_TIMER4, &s3c2410_timer_irq);
-
- /* start the timer running */
- tcon |= S3C2410_TCON_T4START;
- tcon &= ~S3C2410_TCON_T4MANUALUPD;
- __raw_writel(tcon, S3C2410_TCON);
-}
-
-
-
+++ /dev/null
-/*
- * linux/arch/arm/mach-sa1100/collie.c
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * This file contains all Collie-specific tweaks.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * ChangeLog:
- * 03-06-2004 John Lenz <jelenz@wisc.edu>
- * 06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
- * 04-16-2001 Lineo Japan,Inc. ...
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/tty.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/timer.h>
-
-#include <asm/hardware.h>
-#include <asm/mach-types.h>
-#include <asm/irq.h>
-#include <asm/setup.h>
-#include <asm/arch/collie.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <asm/mach/serial_sa1100.h>
-
-#include <asm/hardware/locomo.h>
-
-#include "generic.h"
-
-static void __init scoop_init(void)
-{
-
-#define COLLIE_SCP_INIT_DATA(adr,dat) (((adr)<<16)|(dat))
-#define COLLIE_SCP_INIT_DATA_END ((unsigned long)-1)
- static const unsigned long scp_init[] = {
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_MCR, 0x0140), // 00
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_MCR, 0x0100),
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_CDR, 0x0000), // 04
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_CPR, 0x0000), // 0C
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_CCR, 0x0000), // 10
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_IMR, 0x0000), // 18
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_IRM, 0x00FF), // 14
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_ISR, 0x0000), // 1C
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_IRM, 0x0000),
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_GPCR, COLLIE_SCP_IO_DIR), // 20
- COLLIE_SCP_INIT_DATA(COLLIE_SCP_GPWR, COLLIE_SCP_IO_OUT), // 24
- COLLIE_SCP_INIT_DATA_END
- };
- int i;
- for (i = 0; scp_init[i] != COLLIE_SCP_INIT_DATA_END; i++) {
- int adr = scp_init[i] >> 16;
- COLLIE_SCP_REG(adr) = scp_init[i] & 0xFFFF;
- }
-
-}
-
-static struct resource locomo_resources[] = {
- [0] = {
- .start = 0x40000000,
- .end = 0x40001fff,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = IRQ_GPIO25,
- .end = IRQ_GPIO25,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device locomo_device = {
- .name = "locomo",
- .id = 0,
- .num_resources = ARRAY_SIZE(locomo_resources),
- .resource = locomo_resources,
-};
-
-static struct platform_device *devices[] __initdata = {
- &locomo_device,
-};
-
-static void __init collie_init(void)
-{
- int ret = 0;
-
- /* cpu initialize */
- GAFR = ( GPIO_SSP_TXD | \
- GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \
- GPIO_32_768kHz );
-
- GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \
- GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \
- GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \
- GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz );
- GPLR = GPIO_GPIO18;
-
- // PPC pin setting
- PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \
- PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \
- PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM );
-
- PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 );
-
- GAFR |= GPIO_32_768kHz;
- GPDR |= GPIO_32_768kHz;
- TUCR = TUCR_32_768kHz;
-
- scoop_init();
-
- ret = platform_add_devices(devices, ARRAY_SIZE(devices));
- if (ret) {
- printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
- }
-}
-
-static struct map_desc collie_io_desc[] __initdata = {
- /* virtual physical length type */
- {0xe8000000, 0x00000000, 0x02000000, MT_DEVICE}, /* 32M main flash (cs0) */
- {0xea000000, 0x08000000, 0x02000000, MT_DEVICE}, /* 32M boot flash (cs1) */
- {0xf0000000, 0x40000000, 0x01000000, MT_DEVICE}, /* 16M LOCOMO & SCOOP (cs4) */
-};
-
-static void __init collie_map_io(void)
-{
- sa1100_map_io();
- iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
-}
-
-MACHINE_START(COLLIE, "Sharp-Collie")
- BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
- MAPIO(collie_map_io)
- INITIRQ(sa1100_init_irq)
- INIT_MACHINE(collie_init)
-MACHINE_END
+++ /dev/null
-/*
- * linux/arch/arm/mach-sa1100/time.c
- *
- * Copyright (C) 1998 Deborah Wallach.
- * Twiddles (C) 1999 Hugo Fiennes <hugo@empeg.com>
- *
- * 2000/03/29 (C) Nicolas Pitre <nico@cam.org>
- * Rewritten: big cleanup, much simpler, better HZ accuracy.
- *
- */
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/signal.h>
-
-#include <asm/mach/time.h>
-#include <asm/hardware.h>
-
-#define RTC_DEF_DIVIDER (32768 - 1)
-#define RTC_DEF_TRIM 0
-
-static unsigned long __init sa1100_get_rtc_time(void)
-{
- /*
- * According to the manual we should be able to let RTTR be zero
- * and then a default diviser for a 32.768KHz clock is used.
- * Apparently this doesn't work, at least for my SA1110 rev 5.
- * If the clock divider is uninitialized then reset it to the
- * default value to get the 1Hz clock.
- */
- if (RTTR == 0) {
- RTTR = RTC_DEF_DIVIDER + (RTC_DEF_TRIM << 16);
- printk(KERN_WARNING "Warning: uninitialized Real Time Clock\n");
- /* The current RTC value probably doesn't make sense either */
- RCNR = 0;
- return 0;
- }
- return RCNR;
-}
-
-static int sa1100_set_rtc(void)
-{
- unsigned long current_time = xtime.tv_sec;
-
- if (RTSR & RTSR_ALE) {
- /* make sure not to forward the clock over an alarm */
- unsigned long alarm = RTAR;
- if (current_time >= alarm && alarm >= RCNR)
- return -ERESTARTSYS;
- }
- RCNR = current_time;
- return 0;
-}
-
-/* IRQs are disabled before entering here from do_gettimeofday() */
-static unsigned long sa1100_gettimeoffset (void)
-{
- unsigned long ticks_to_match, elapsed, usec;
-
- /* Get ticks before next timer match */
- ticks_to_match = OSMR0 - OSCR;
-
- /* We need elapsed ticks since last match */
- elapsed = LATCH - ticks_to_match;
-
- /* Now convert them to usec */
- usec = (unsigned long)(elapsed * (tick_nsec / 1000))/LATCH;
-
- return usec;
-}
-
-/*
- * We will be entered with IRQs enabled.
- *
- * Loop until we get ahead of the free running timer.
- * This ensures an exact clock tick count and time accuracy.
- * IRQs are disabled inside the loop to ensure coherence between
- * lost_ticks (updated in do_timer()) and the match reg value, so we
- * can use do_gettimeofday() from interrupt handlers.
- */
-static irqreturn_t
-sa1100_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned int next_match;
-
- do {
- timer_tick(regs);
- OSSR = OSSR_M0; /* Clear match on timer 0 */
- next_match = (OSMR0 += LATCH);
- } while ((signed long)(next_match - OSCR) <= 0);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction sa1100_timer_irq = {
- .name = "SA11xx Timer Tick",
- .flags = SA_INTERRUPT,
- .handler = sa1100_timer_interrupt
-};
-
-void __init sa1100_init_time(void)
-{
- struct timespec tv;
-
- gettimeoffset = sa1100_gettimeoffset;
- set_rtc = sa1100_set_rtc;
-
- tv.tv_nsec = 0;
- tv.tv_sec = sa1100_get_rtc_time();
- do_settimeofday(&tv);
-
- OSMR0 = 0; /* set initial match at 0 */
- OSSR = 0xf; /* clear status on all timers */
- setup_irq(IRQ_OST0, &sa1100_timer_irq);
- OIER |= OIER_E0; /* enable match on timer 0 to cause interrupts */
- OSCR = 0; /* initialize free-running timer, force first match */
-}
-
+++ /dev/null
-/*
- * linux/arch/arm/mach-versatile/clock.c
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-
-#include <asm/semaphore.h>
-#include <asm/hardware/clock.h>
-#include <asm/hardware/icst525.h>
-
-#include "clock.h"
-
-static LIST_HEAD(clocks);
-static DECLARE_MUTEX(clocks_sem);
-
-struct clk *clk_get(struct device *dev, const char *id)
-{
- struct clk *p, *clk = ERR_PTR(-ENOENT);
-
- down(&clocks_sem);
- list_for_each_entry(p, &clocks, node) {
- if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
- clk = p;
- break;
- }
- }
- up(&clocks_sem);
-
- return clk;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
- module_put(clk->owner);
-}
-EXPORT_SYMBOL(clk_put);
-
-int clk_enable(struct clk *clk)
-{
- return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_disable);
-
-int clk_use(struct clk *clk)
-{
- return 0;
-}
-EXPORT_SYMBOL(clk_use);
-
-void clk_unuse(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_unuse);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
- return clk->rate;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-long clk_round_rate(struct clk *clk, unsigned long rate)
-{
- return rate;
-}
-EXPORT_SYMBOL(clk_round_rate);
-
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
- int ret = -EIO;
-#if 0 // Not yet
- if (clk->setvco) {
- struct icst525_vco vco;
-
- vco = icst525_khz_to_vco(clk->params, rate);
- clk->rate = icst525_khz(clk->params, vco);
-
- printk("Clock %s: setting VCO reg params: S=%d R=%d V=%d\n",
- clk->name, vco.s, vco.r, vco.v);
-
- clk->setvco(clk, vco);
- ret = 0;
- }
-#endif
- return 0;
-}
-EXPORT_SYMBOL(clk_set_rate);
-
-/*
- * These are fixed clocks.
- */
-static struct clk kmi_clk = {
- .name = "KMIREFCLK",
- .rate = 24000000,
-};
-
-static struct clk uart_clk = {
- .name = "UARTCLK",
- .rate = 24000000,
-};
-
-static struct clk mmci_clk = {
- .name = "MCLK",
- .rate = 33000000,
-};
-
-int clk_register(struct clk *clk)
-{
- down(&clocks_sem);
- list_add(&clk->node, &clocks);
- up(&clocks_sem);
- return 0;
-}
-EXPORT_SYMBOL(clk_register);
-
-void clk_unregister(struct clk *clk)
-{
- down(&clocks_sem);
- list_del(&clk->node);
- up(&clocks_sem);
-}
-EXPORT_SYMBOL(clk_unregister);
-
-static int __init clk_init(void)
-{
- clk_register(&kmi_clk);
- clk_register(&uart_clk);
- clk_register(&mmci_clk);
- return 0;
-}
-arch_initcall(clk_init);
+++ /dev/null
-/*
- * linux/arch/arm/mach-versatile/clock.h
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-struct module;
-struct icst525_params;
-
-struct clk {
- struct list_head node;
- unsigned long rate;
- struct module *owner;
- const char *name;
- const struct icst525_params *params;
- void *data;
- void (*setvco)(struct clk *, struct icst525_vco vco);
-};
-
-int clk_register(struct clk *clk);
-void clk_unregister(struct clk *clk);
+++ /dev/null
-#
-# linux/arch/arm/vfp/Makefile
-#
-# Copyright (C) 2001 ARM Limited
-#
-
-# EXTRA_CFLAGS := -DDEBUG
-# EXTRA_AFLAGS := -DDEBUG
-
-obj-y += vfp.o
-
-vfp-$(CONFIG_VFP) += entry.o vfpmodule.o vfphw.o vfpsingle.o vfpdouble.o
+++ /dev/null
-/*
- * linux/arch/arm/vfp/entry.S
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Basic entry code, called from the kernel's undefined instruction trap.
- * r0 = faulted instruction
- * r5 = faulted PC+4
- * r9 = successful return
- * r10 = thread_info structure
- * lr = failure return
- */
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <asm/thread_info.h>
-#include <asm/vfpmacros.h>
-
- .globl do_vfp
-do_vfp:
- ldr r4, .LCvfp
- add r10, r10, #TI_VFPSTATE @ r10 = workspace
- ldr pc, [r4] @ call VFP entry point
-
-.LCvfp:
- .word vfp_vector
-
-@ This code is called if the VFP does not exist. It needs to flag the
-@ failure to the VFP initialisation code.
-
- __INIT
- .globl vfp_testing_entry
-vfp_testing_entry:
- ldr r0, VFP_arch_address
- str r5, [r0] @ known non-zero value
- mov pc, r9 @ we have handled the fault
-
-VFP_arch_address:
- .word VFP_arch
-
- __FINIT
+++ /dev/null
-/*
- * linux/arch/arm/vfp/vfp.h
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-static inline u32 vfp_shiftright32jamming(u32 val, unsigned int shift)
-{
- if (shift) {
- if (shift < 32)
- val = val >> shift | ((val << (32 - shift)) != 0);
- else
- val = val != 0;
- }
- return val;
-}
-
-static inline u64 vfp_shiftright64jamming(u64 val, unsigned int shift)
-{
- if (shift) {
- if (shift < 64)
- val = val >> shift | ((val << (64 - shift)) != 0);
- else
- val = val != 0;
- }
- return val;
-}
-
-static inline u32 vfp_hi64to32jamming(u64 val)
-{
- u32 v;
-
- asm(
- "cmp %Q1, #1 @ vfp_hi64to32jamming\n\t"
- "movcc %0, %R1\n\t"
- "orrcs %0, %R1, #1"
- : "=r" (v) : "r" (val) : "cc");
-
- return v;
-}
-
-static inline void add128(u64 *resh, u64 *resl, u64 nh, u64 nl, u64 mh, u64 ml)
-{
- asm( "adds %Q0, %Q2, %Q4\n\t"
- "adcs %R0, %R2, %R4\n\t"
- "adcs %Q1, %Q3, %Q5\n\t"
- "adc %R1, %R3, %R5"
- : "=r" (nl), "=r" (nh)
- : "0" (nl), "1" (nh), "r" (ml), "r" (mh)
- : "cc");
- *resh = nh;
- *resl = nl;
-}
-
-static inline void sub128(u64 *resh, u64 *resl, u64 nh, u64 nl, u64 mh, u64 ml)
-{
- asm( "subs %Q0, %Q2, %Q4\n\t"
- "sbcs %R0, %R2, %R4\n\t"
- "sbcs %Q1, %Q3, %Q5\n\t"
- "sbc %R1, %R3, %R5\n\t"
- : "=r" (nl), "=r" (nh)
- : "0" (nl), "1" (nh), "r" (ml), "r" (mh)
- : "cc");
- *resh = nh;
- *resl = nl;
-}
-
-static inline void mul64to128(u64 *resh, u64 *resl, u64 n, u64 m)
-{
- u32 nh, nl, mh, ml;
- u64 rh, rma, rmb, rl;
-
- nl = n;
- ml = m;
- rl = (u64)nl * ml;
-
- nh = n >> 32;
- rma = (u64)nh * ml;
-
- mh = m >> 32;
- rmb = (u64)nl * mh;
- rma += rmb;
-
- rh = (u64)nh * mh;
- rh += ((u64)(rma < rmb) << 32) + (rma >> 32);
-
- rma <<= 32;
- rl += rma;
- rh += (rl < rma);
-
- *resl = rl;
- *resh = rh;
-}
-
-static inline void shift64left(u64 *resh, u64 *resl, u64 n)
-{
- *resh = n >> 63;
- *resl = n << 1;
-}
-
-static inline u64 vfp_hi64multiply64(u64 n, u64 m)
-{
- u64 rh, rl;
- mul64to128(&rh, &rl, n, m);
- return rh | (rl != 0);
-}
-
-static inline u64 vfp_estimate_div128to64(u64 nh, u64 nl, u64 m)
-{
- u64 mh, ml, remh, reml, termh, terml, z;
-
- if (nh >= m)
- return ~0ULL;
- mh = m >> 32;
- z = (mh << 32 <= nh) ? 0xffffffff00000000ULL : (nh / mh) << 32;
- mul64to128(&termh, &terml, m, z);
- sub128(&remh, &reml, nh, nl, termh, terml);
- ml = m << 32;
- while ((s64)remh < 0) {
- z -= 0x100000000ULL;
- add128(&remh, &reml, remh, reml, mh, ml);
- }
- remh = (remh << 32) | (reml >> 32);
- z |= (mh << 32 <= remh) ? 0xffffffff : remh / mh;
- return z;
-}
-
-/*
- * Operations on unpacked elements
- */
-#define vfp_sign_negate(sign) (sign ^ 0x8000)
-
-/*
- * Single-precision
- */
-struct vfp_single {
- s16 exponent;
- u16 sign;
- u32 significand;
-};
-
-extern s32 vfp_get_float(unsigned int reg);
-extern void vfp_put_float(unsigned int reg, s32 val);
-
-/*
- * VFP_SINGLE_MANTISSA_BITS - number of bits in the mantissa
- * VFP_SINGLE_EXPONENT_BITS - number of bits in the exponent
- * VFP_SINGLE_LOW_BITS - number of low bits in the unpacked significand
- * which are not propagated to the float upon packing.
- */
-#define VFP_SINGLE_MANTISSA_BITS (23)
-#define VFP_SINGLE_EXPONENT_BITS (8)
-#define VFP_SINGLE_LOW_BITS (32 - VFP_SINGLE_MANTISSA_BITS - 2)
-#define VFP_SINGLE_LOW_BITS_MASK ((1 << VFP_SINGLE_LOW_BITS) - 1)
-
-/*
- * The bit in an unpacked float which indicates that it is a quiet NaN
- */
-#define VFP_SINGLE_SIGNIFICAND_QNAN (1 << (VFP_SINGLE_MANTISSA_BITS - 1 + VFP_SINGLE_LOW_BITS))
-
-/*
- * Operations on packed single-precision numbers
- */
-#define vfp_single_packed_sign(v) ((v) & 0x80000000)
-#define vfp_single_packed_negate(v) ((v) ^ 0x80000000)
-#define vfp_single_packed_abs(v) ((v) & ~0x80000000)
-#define vfp_single_packed_exponent(v) (((v) >> VFP_SINGLE_MANTISSA_BITS) & ((1 << VFP_SINGLE_EXPONENT_BITS) - 1))
-#define vfp_single_packed_mantissa(v) ((v) & ((1 << VFP_SINGLE_MANTISSA_BITS) - 1))
-
-/*
- * Unpack a single-precision float. Note that this returns the magnitude
- * of the single-precision float mantissa with the 1. if necessary,
- * aligned to bit 30.
- */
-static inline void vfp_single_unpack(struct vfp_single *s, s32 val)
-{
- u32 significand;
-
- s->sign = vfp_single_packed_sign(val) >> 16,
- s->exponent = vfp_single_packed_exponent(val);
-
- significand = (u32) val;
- significand = (significand << (32 - VFP_SINGLE_MANTISSA_BITS)) >> 2;
- if (s->exponent && s->exponent != 255)
- significand |= 0x40000000;
- s->significand = significand;
-}
-
-/*
- * Re-pack a single-precision float. This assumes that the float is
- * already normalised such that the MSB is bit 30, _not_ bit 31.
- */
-static inline s32 vfp_single_pack(struct vfp_single *s)
-{
- u32 val;
- val = (s->sign << 16) +
- (s->exponent << VFP_SINGLE_MANTISSA_BITS) +
- (s->significand >> VFP_SINGLE_LOW_BITS);
- return (s32)val;
-}
-
-#define VFP_NUMBER (1<<0)
-#define VFP_ZERO (1<<1)
-#define VFP_DENORMAL (1<<2)
-#define VFP_INFINITY (1<<3)
-#define VFP_NAN (1<<4)
-#define VFP_NAN_SIGNAL (1<<5)
-
-#define VFP_QNAN (VFP_NAN)
-#define VFP_SNAN (VFP_NAN|VFP_NAN_SIGNAL)
-
-static inline int vfp_single_type(struct vfp_single *s)
-{
- int type = VFP_NUMBER;
- if (s->exponent == 255) {
- if (s->significand == 0)
- type = VFP_INFINITY;
- else if (s->significand & VFP_SINGLE_SIGNIFICAND_QNAN)
- type = VFP_QNAN;
- else
- type = VFP_SNAN;
- } else if (s->exponent == 0) {
- if (s->significand == 0)
- type |= VFP_ZERO;
- else
- type |= VFP_DENORMAL;
- }
- return type;
-}
-
-#ifndef DEBUG
-#define vfp_single_normaliseround(sd,vsd,fpscr,except,func) __vfp_single_normaliseround(sd,vsd,fpscr,except)
-u32 __vfp_single_normaliseround(int sd, struct vfp_single *vs, u32 fpscr, u32 exceptions);
-#else
-u32 vfp_single_normaliseround(int sd, struct vfp_single *vs, u32 fpscr, u32 exceptions, const char *func);
-#endif
-
-/*
- * Double-precision
- */
-struct vfp_double {
- s16 exponent;
- u16 sign;
- u64 significand;
-};
-
-extern u64 vfp_get_double(unsigned int reg);
-extern void vfp_put_double(unsigned int reg, u64 val);
-
-#define VFP_DOUBLE_MANTISSA_BITS (52)
-#define VFP_DOUBLE_EXPONENT_BITS (11)
-#define VFP_DOUBLE_LOW_BITS (64 - VFP_DOUBLE_MANTISSA_BITS - 2)
-#define VFP_DOUBLE_LOW_BITS_MASK ((1 << VFP_DOUBLE_LOW_BITS) - 1)
-
-/*
- * The bit in an unpacked double which indicates that it is a quiet NaN
- */
-#define VFP_DOUBLE_SIGNIFICAND_QNAN (1ULL << (VFP_DOUBLE_MANTISSA_BITS - 1 + VFP_DOUBLE_LOW_BITS))
-
-/*
- * Operations on packed single-precision numbers
- */
-#define vfp_double_packed_sign(v) ((v) & (1ULL << 63))
-#define vfp_double_packed_negate(v) ((v) ^ (1ULL << 63))
-#define vfp_double_packed_abs(v) ((v) & ~(1ULL << 63))
-#define vfp_double_packed_exponent(v) (((v) >> VFP_DOUBLE_MANTISSA_BITS) & ((1 << VFP_DOUBLE_EXPONENT_BITS) - 1))
-#define vfp_double_packed_mantissa(v) ((v) & ((1ULL << VFP_DOUBLE_MANTISSA_BITS) - 1))
-
-/*
- * Unpack a double-precision float. Note that this returns the magnitude
- * of the double-precision float mantissa with the 1. if necessary,
- * aligned to bit 62.
- */
-static inline void vfp_double_unpack(struct vfp_double *s, s64 val)
-{
- u64 significand;
-
- s->sign = vfp_double_packed_sign(val) >> 48;
- s->exponent = vfp_double_packed_exponent(val);
-
- significand = (u64) val;
- significand = (significand << (64 - VFP_DOUBLE_MANTISSA_BITS)) >> 2;
- if (s->exponent && s->exponent != 2047)
- significand |= (1ULL << 62);
- s->significand = significand;
-}
-
-/*
- * Re-pack a double-precision float. This assumes that the float is
- * already normalised such that the MSB is bit 30, _not_ bit 31.
- */
-static inline s64 vfp_double_pack(struct vfp_double *s)
-{
- u64 val;
- val = ((u64)s->sign << 48) +
- ((u64)s->exponent << VFP_DOUBLE_MANTISSA_BITS) +
- (s->significand >> VFP_DOUBLE_LOW_BITS);
- return (s64)val;
-}
-
-static inline int vfp_double_type(struct vfp_double *s)
-{
- int type = VFP_NUMBER;
- if (s->exponent == 2047) {
- if (s->significand == 0)
- type = VFP_INFINITY;
- else if (s->significand & VFP_DOUBLE_SIGNIFICAND_QNAN)
- type = VFP_QNAN;
- else
- type = VFP_SNAN;
- } else if (s->exponent == 0) {
- if (s->significand == 0)
- type |= VFP_ZERO;
- else
- type |= VFP_DENORMAL;
- }
- return type;
-}
-
-u32 vfp_double_normaliseround(int dd, struct vfp_double *vd, u32 fpscr, u32 exceptions, const char *func);
-
-/*
- * System registers
- */
-extern u32 vfp_get_sys(unsigned int reg);
-extern void vfp_put_sys(unsigned int reg, u32 val);
-
-u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand);
+++ /dev/null
-/*
- * linux/arch/arm/vfp/vfpdouble.c
- *
- * This code is derived in part from John R. Housers softfloat library, which
- * carries the following notice:
- *
- * ===========================================================================
- * This C source file is part of the SoftFloat IEC/IEEE Floating-point
- * Arithmetic Package, Release 2.
- *
- * Written by John R. Hauser. This work was made possible in part by the
- * International Computer Science Institute, located at Suite 600, 1947 Center
- * Street, Berkeley, California 94704. Funding was partially provided by the
- * National Science Foundation under grant MIP-9311980. The original version
- * of this code was written as part of a project to build a fixed-point vector
- * processor in collaboration with the University of California at Berkeley,
- * overseen by Profs. Nelson Morgan and John Wawrzynek. More information
- * is available through the web page `http://HTTP.CS.Berkeley.EDU/~jhauser/
- * arithmetic/softfloat.html'.
- *
- * THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort
- * has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
- * TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO
- * PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
- * AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
- *
- * Derivative works are acceptable, even for commercial purposes, so long as
- * (1) they include prominent notice that the work is derivative, and (2) they
- * include prominent notice akin to these three paragraphs for those parts of
- * this code that are retained.
- * ===========================================================================
- */
-#include <linux/kernel.h>
-#include <asm/bitops.h>
-#include <asm/ptrace.h>
-#include <asm/vfp.h>
-
-#include "vfpinstr.h"
-#include "vfp.h"
-
-static struct vfp_double vfp_double_default_qnan = {
- .exponent = 2047,
- .sign = 0,
- .significand = VFP_DOUBLE_SIGNIFICAND_QNAN,
-};
-
-static void vfp_double_dump(const char *str, struct vfp_double *d)
-{
- pr_debug("VFP: %s: sign=%d exponent=%d significand=%016llx\n",
- str, d->sign != 0, d->exponent, d->significand);
-}
-
-static void vfp_double_normalise_denormal(struct vfp_double *vd)
-{
- int bits = 31 - fls(vd->significand >> 32);
- if (bits == 31)
- bits = 62 - fls(vd->significand);
-
- vfp_double_dump("normalise_denormal: in", vd);
-
- if (bits) {
- vd->exponent -= bits - 1;
- vd->significand <<= bits;
- }
-
- vfp_double_dump("normalise_denormal: out", vd);
-}
-
-u32 vfp_double_normaliseround(int dd, struct vfp_double *vd, u32 fpscr, u32 exceptions, const char *func)
-{
- u64 significand, incr;
- int exponent, shift, underflow;
- u32 rmode;
-
- vfp_double_dump("pack: in", vd);
-
- /*
- * Infinities and NaNs are a special case.
- */
- if (vd->exponent == 2047 && (vd->significand == 0 || exceptions))
- goto pack;
-
- /*
- * Special-case zero.
- */
- if (vd->significand == 0) {
- vd->exponent = 0;
- goto pack;
- }
-
- exponent = vd->exponent;
- significand = vd->significand;
-
- shift = 32 - fls(significand >> 32);
- if (shift == 32)
- shift = 64 - fls(significand);
- if (shift) {
- exponent -= shift;
- significand <<= shift;
- }
-
-#ifdef DEBUG
- vd->exponent = exponent;
- vd->significand = significand;
- vfp_double_dump("pack: normalised", vd);
-#endif
-
- /*
- * Tiny number?
- */
- underflow = exponent < 0;
- if (underflow) {
- significand = vfp_shiftright64jamming(significand, -exponent);
- exponent = 0;
-#ifdef DEBUG
- vd->exponent = exponent;
- vd->significand = significand;
- vfp_double_dump("pack: tiny number", vd);
-#endif
- if (!(significand & ((1ULL << (VFP_DOUBLE_LOW_BITS + 1)) - 1)))
- underflow = 0;
- }
-
- /*
- * Select rounding increment.
- */
- incr = 0;
- rmode = fpscr & FPSCR_RMODE_MASK;
-
- if (rmode == FPSCR_ROUND_NEAREST) {
- incr = 1ULL << VFP_DOUBLE_LOW_BITS;
- if ((significand & (1ULL << (VFP_DOUBLE_LOW_BITS + 1))) == 0)
- incr -= 1;
- } else if (rmode == FPSCR_ROUND_TOZERO) {
- incr = 0;
- } else if ((rmode == FPSCR_ROUND_PLUSINF) ^ (vd->sign != 0))
- incr = (1ULL << (VFP_DOUBLE_LOW_BITS + 1)) - 1;
-
- pr_debug("VFP: rounding increment = 0x%08llx\n", incr);
-
- /*
- * Is our rounding going to overflow?
- */
- if ((significand + incr) < significand) {
- exponent += 1;
- significand = (significand >> 1) | (significand & 1);
- incr >>= 1;
-#ifdef DEBUG
- vd->exponent = exponent;
- vd->significand = significand;
- vfp_double_dump("pack: overflow", vd);
-#endif
- }
-
- /*
- * If any of the low bits (which will be shifted out of the
- * number) are non-zero, the result is inexact.
- */
- if (significand & ((1 << (VFP_DOUBLE_LOW_BITS + 1)) - 1))
- exceptions |= FPSCR_IXC;
-
- /*
- * Do our rounding.
- */
- significand += incr;
-
- /*
- * Infinity?
- */
- if (exponent >= 2046) {
- exceptions |= FPSCR_OFC | FPSCR_IXC;
- if (incr == 0) {
- vd->exponent = 2045;
- vd->significand = 0x7fffffffffffffffULL;
- } else {
- vd->exponent = 2047; /* infinity */
- vd->significand = 0;
- }
- } else {
- if (significand >> (VFP_DOUBLE_LOW_BITS + 1) == 0)
- exponent = 0;
- if (exponent || significand > 0x8000000000000000ULL)
- underflow = 0;
- if (underflow)
- exceptions |= FPSCR_UFC;
- vd->exponent = exponent;
- vd->significand = significand >> 1;
- }
-
- pack:
- vfp_double_dump("pack: final", vd);
- {
- s64 d = vfp_double_pack(vd);
- pr_debug("VFP: %s: d(d%d)=%016llx exceptions=%08x\n", func,
- dd, d, exceptions);
- vfp_put_double(dd, d);
- }
- return exceptions;
-}
-
-/*
- * Propagate the NaN, setting exceptions if it is signalling.
- * 'n' is always a NaN. 'm' may be a number, NaN or infinity.
- */
-static u32
-vfp_propagate_nan(struct vfp_double *vdd, struct vfp_double *vdn,
- struct vfp_double *vdm, u32 fpscr)
-{
- struct vfp_double *nan;
- int tn, tm = 0;
-
- tn = vfp_double_type(vdn);
-
- if (vdm)
- tm = vfp_double_type(vdm);
-
- if (fpscr & FPSCR_DEFAULT_NAN)
- /*
- * Default NaN mode - always returns a quiet NaN
- */
- nan = &vfp_double_default_qnan;
- else {
- /*
- * Contemporary mode - select the first signalling
- * NAN, or if neither are signalling, the first
- * quiet NAN.
- */
- if (tn == VFP_SNAN || (tm != VFP_SNAN && tn == VFP_QNAN))
- nan = vdn;
- else
- nan = vdm;
- /*
- * Make the NaN quiet.
- */
- nan->significand |= VFP_DOUBLE_SIGNIFICAND_QNAN;
- }
-
- *vdd = *nan;
-
- /*
- * If one was a signalling NAN, raise invalid operation.
- */
- return tn == VFP_SNAN || tm == VFP_SNAN ? FPSCR_IOC : 0x100;
-}
-
-/*
- * Extended operations
- */
-static u32 vfp_double_fabs(int dd, int unused, int dm, u32 fpscr)
-{
- vfp_put_double(dd, vfp_double_packed_abs(vfp_get_double(dm)));
- return 0;
-}
-
-static u32 vfp_double_fcpy(int dd, int unused, int dm, u32 fpscr)
-{
- vfp_put_double(dd, vfp_get_double(dm));
- return 0;
-}
-
-static u32 vfp_double_fneg(int dd, int unused, int dm, u32 fpscr)
-{
- vfp_put_double(dd, vfp_double_packed_negate(vfp_get_double(dm)));
- return 0;
-}
-
-static u32 vfp_double_fsqrt(int dd, int unused, int dm, u32 fpscr)
-{
- struct vfp_double vdm, vdd;
- int ret, tm;
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
- tm = vfp_double_type(&vdm);
- if (tm & (VFP_NAN|VFP_INFINITY)) {
- struct vfp_double *vdp = &vdd;
-
- if (tm & VFP_NAN)
- ret = vfp_propagate_nan(vdp, &vdm, NULL, fpscr);
- else if (vdm.sign == 0) {
- sqrt_copy:
- vdp = &vdm;
- ret = 0;
- } else {
- sqrt_invalid:
- vdp = &vfp_double_default_qnan;
- ret = FPSCR_IOC;
- }
- vfp_put_double(dd, vfp_double_pack(vdp));
- return ret;
- }
-
- /*
- * sqrt(+/- 0) == +/- 0
- */
- if (tm & VFP_ZERO)
- goto sqrt_copy;
-
- /*
- * Normalise a denormalised number
- */
- if (tm & VFP_DENORMAL)
- vfp_double_normalise_denormal(&vdm);
-
- /*
- * sqrt(<0) = invalid
- */
- if (vdm.sign)
- goto sqrt_invalid;
-
- vfp_double_dump("sqrt", &vdm);
-
- /*
- * Estimate the square root.
- */
- vdd.sign = 0;
- vdd.exponent = ((vdm.exponent - 1023) >> 1) + 1023;
- vdd.significand = (u64)vfp_estimate_sqrt_significand(vdm.exponent, vdm.significand >> 32) << 31;
-
- vfp_double_dump("sqrt estimate1", &vdd);
-
- vdm.significand >>= 1 + (vdm.exponent & 1);
- vdd.significand += 2 + vfp_estimate_div128to64(vdm.significand, 0, vdd.significand);
-
- vfp_double_dump("sqrt estimate2", &vdd);
-
- /*
- * And now adjust.
- */
- if ((vdd.significand & VFP_DOUBLE_LOW_BITS_MASK) <= 5) {
- if (vdd.significand < 2) {
- vdd.significand = ~0ULL;
- } else {
- u64 termh, terml, remh, reml;
- vdm.significand <<= 2;
- mul64to128(&termh, &terml, vdd.significand, vdd.significand);
- sub128(&remh, &reml, vdm.significand, 0, termh, terml);
- while ((s64)remh < 0) {
- vdd.significand -= 1;
- shift64left(&termh, &terml, vdd.significand);
- terml |= 1;
- add128(&remh, &reml, remh, reml, termh, terml);
- }
- vdd.significand |= (remh | reml) != 0;
- }
- }
- vdd.significand = vfp_shiftright64jamming(vdd.significand, 1);
-
- return vfp_double_normaliseround(dd, &vdd, fpscr, 0, "fsqrt");
-}
-
-/*
- * Equal := ZC
- * Less than := N
- * Greater than := C
- * Unordered := CV
- */
-static u32 vfp_compare(int dd, int signal_on_qnan, int dm, u32 fpscr)
-{
- s64 d, m;
- u32 ret = 0;
-
- m = vfp_get_double(dm);
- if (vfp_double_packed_exponent(m) == 2047 && vfp_double_packed_mantissa(m)) {
- ret |= FPSCR_C | FPSCR_V;
- if (signal_on_qnan || !(vfp_double_packed_mantissa(m) & (1ULL << (VFP_DOUBLE_MANTISSA_BITS - 1))))
- /*
- * Signalling NaN, or signalling on quiet NaN
- */
- ret |= FPSCR_IOC;
- }
-
- d = vfp_get_double(dd);
- if (vfp_double_packed_exponent(d) == 2047 && vfp_double_packed_mantissa(d)) {
- ret |= FPSCR_C | FPSCR_V;
- if (signal_on_qnan || !(vfp_double_packed_mantissa(d) & (1ULL << (VFP_DOUBLE_MANTISSA_BITS - 1))))
- /*
- * Signalling NaN, or signalling on quiet NaN
- */
- ret |= FPSCR_IOC;
- }
-
- if (ret == 0) {
- if (d == m || vfp_double_packed_abs(d | m) == 0) {
- /*
- * equal
- */
- ret |= FPSCR_Z | FPSCR_C;
- } else if (vfp_double_packed_sign(d ^ m)) {
- /*
- * different signs
- */
- if (vfp_double_packed_sign(d))
- /*
- * d is negative, so d < m
- */
- ret |= FPSCR_N;
- else
- /*
- * d is positive, so d > m
- */
- ret |= FPSCR_C;
- } else if ((vfp_double_packed_sign(d) != 0) ^ (d < m)) {
- /*
- * d < m
- */
- ret |= FPSCR_N;
- } else if ((vfp_double_packed_sign(d) != 0) ^ (d > m)) {
- /*
- * d > m
- */
- ret |= FPSCR_C;
- }
- }
-
- return ret;
-}
-
-static u32 vfp_double_fcmp(int dd, int unused, int dm, u32 fpscr)
-{
- return vfp_compare(dd, 0, dm, fpscr);
-}
-
-static u32 vfp_double_fcmpe(int dd, int unused, int dm, u32 fpscr)
-{
- return vfp_compare(dd, 1, dm, fpscr);
-}
-
-static u32 vfp_double_fcmpz(int dd, int unused, int dm, u32 fpscr)
-{
- return vfp_compare(dd, 0, -1, fpscr);
-}
-
-static u32 vfp_double_fcmpez(int dd, int unused, int dm, u32 fpscr)
-{
- return vfp_compare(dd, 1, -1, fpscr);
-}
-
-static u32 vfp_double_fcvts(int sd, int unused, int dm, u32 fpscr)
-{
- struct vfp_double vdm;
- struct vfp_single vsd;
- int tm;
- u32 exceptions = 0;
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
-
- tm = vfp_double_type(&vdm);
-
- /*
- * If we have a signalling NaN, signal invalid operation.
- */
- if (tm == VFP_SNAN)
- exceptions = FPSCR_IOC;
-
- if (tm & VFP_DENORMAL)
- vfp_double_normalise_denormal(&vdm);
-
- vsd.sign = vdm.sign;
- vsd.significand = vfp_hi64to32jamming(vdm.significand);
-
- /*
- * If we have an infinity or a NaN, the exponent must be 255
- */
- if (tm & (VFP_INFINITY|VFP_NAN)) {
- vsd.exponent = 255;
- if (tm & VFP_NAN)
- vsd.significand |= VFP_SINGLE_SIGNIFICAND_QNAN;
- goto pack_nan;
- } else if (tm & VFP_ZERO)
- vsd.exponent = 0;
- else
- vsd.exponent = vdm.exponent - (1023 - 127);
-
- return vfp_single_normaliseround(sd, &vsd, fpscr, exceptions, "fcvts");
-
- pack_nan:
- vfp_put_float(sd, vfp_single_pack(&vsd));
- return exceptions;
-}
-
-static u32 vfp_double_fuito(int dd, int unused, int dm, u32 fpscr)
-{
- struct vfp_double vdm;
- u32 m = vfp_get_float(dm);
-
- vdm.sign = 0;
- vdm.exponent = 1023 + 63 - 1;
- vdm.significand = (u64)m;
-
- return vfp_double_normaliseround(dd, &vdm, fpscr, 0, "fuito");
-}
-
-static u32 vfp_double_fsito(int dd, int unused, int dm, u32 fpscr)
-{
- struct vfp_double vdm;
- u32 m = vfp_get_float(dm);
-
- vdm.sign = (m & 0x80000000) >> 16;
- vdm.exponent = 1023 + 63 - 1;
- vdm.significand = vdm.sign ? -m : m;
-
- return vfp_double_normaliseround(dd, &vdm, fpscr, 0, "fsito");
-}
-
-static u32 vfp_double_ftoui(int sd, int unused, int dm, u32 fpscr)
-{
- struct vfp_double vdm;
- u32 d, exceptions = 0;
- int rmode = fpscr & FPSCR_RMODE_MASK;
- int tm;
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
-
- /*
- * Do we have a denormalised number?
- */
- tm = vfp_double_type(&vdm);
- if (tm & VFP_DENORMAL)
- exceptions |= FPSCR_IDC;
-
- if (tm & VFP_NAN)
- vdm.sign = 0;
-
- if (vdm.exponent >= 1023 + 32) {
- d = vdm.sign ? 0 : 0xffffffff;
- exceptions = FPSCR_IOC;
- } else if (vdm.exponent >= 1023 - 1) {
- int shift = 1023 + 63 - vdm.exponent;
- u64 rem, incr = 0;
-
- /*
- * 2^0 <= m < 2^32-2^8
- */
- d = (vdm.significand << 1) >> shift;
- rem = vdm.significand << (65 - shift);
-
- if (rmode == FPSCR_ROUND_NEAREST) {
- incr = 0x8000000000000000ULL;
- if ((d & 1) == 0)
- incr -= 1;
- } else if (rmode == FPSCR_ROUND_TOZERO) {
- incr = 0;
- } else if ((rmode == FPSCR_ROUND_PLUSINF) ^ (vdm.sign != 0)) {
- incr = ~0ULL;
- }
-
- if ((rem + incr) < rem) {
- if (d < 0xffffffff)
- d += 1;
- else
- exceptions |= FPSCR_IOC;
- }
-
- if (d && vdm.sign) {
- d = 0;
- exceptions |= FPSCR_IOC;
- } else if (rem)
- exceptions |= FPSCR_IXC;
- } else {
- d = 0;
- if (vdm.exponent | vdm.significand) {
- exceptions |= FPSCR_IXC;
- if (rmode == FPSCR_ROUND_PLUSINF && vdm.sign == 0)
- d = 1;
- else if (rmode == FPSCR_ROUND_MINUSINF && vdm.sign) {
- d = 0;
- exceptions |= FPSCR_IOC;
- }
- }
- }
-
- pr_debug("VFP: ftoui: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions);
-
- vfp_put_float(sd, d);
-
- return exceptions;
-}
-
-static u32 vfp_double_ftouiz(int sd, int unused, int dm, u32 fpscr)
-{
- return vfp_double_ftoui(sd, unused, dm, FPSCR_ROUND_TOZERO);
-}
-
-static u32 vfp_double_ftosi(int sd, int unused, int dm, u32 fpscr)
-{
- struct vfp_double vdm;
- u32 d, exceptions = 0;
- int rmode = fpscr & FPSCR_RMODE_MASK;
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
- vfp_double_dump("VDM", &vdm);
-
- /*
- * Do we have denormalised number?
- */
- if (vfp_double_type(&vdm) & VFP_DENORMAL)
- exceptions |= FPSCR_IDC;
-
- if (vdm.exponent >= 1023 + 32) {
- d = 0x7fffffff;
- if (vdm.sign)
- d = ~d;
- exceptions |= FPSCR_IOC;
- } else if (vdm.exponent >= 1023 - 1) {
- int shift = 1023 + 63 - vdm.exponent; /* 58 */
- u64 rem, incr = 0;
-
- d = (vdm.significand << 1) >> shift;
- rem = vdm.significand << (65 - shift);
-
- if (rmode == FPSCR_ROUND_NEAREST) {
- incr = 0x8000000000000000ULL;
- if ((d & 1) == 0)
- incr -= 1;
- } else if (rmode == FPSCR_ROUND_TOZERO) {
- incr = 0;
- } else if ((rmode == FPSCR_ROUND_PLUSINF) ^ (vdm.sign != 0)) {
- incr = ~0ULL;
- }
-
- if ((rem + incr) < rem && d < 0xffffffff)
- d += 1;
- if (d > 0x7fffffff + (vdm.sign != 0)) {
- d = 0x7fffffff + (vdm.sign != 0);
- exceptions |= FPSCR_IOC;
- } else if (rem)
- exceptions |= FPSCR_IXC;
-
- if (vdm.sign)
- d = -d;
- } else {
- d = 0;
- if (vdm.exponent | vdm.significand) {
- exceptions |= FPSCR_IXC;
- if (rmode == FPSCR_ROUND_PLUSINF && vdm.sign == 0)
- d = 1;
- else if (rmode == FPSCR_ROUND_MINUSINF && vdm.sign)
- d = -1;
- }
- }
-
- pr_debug("VFP: ftosi: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions);
-
- vfp_put_float(sd, (s32)d);
-
- return exceptions;
-}
-
-static u32 vfp_double_ftosiz(int dd, int unused, int dm, u32 fpscr)
-{
- return vfp_double_ftosi(dd, unused, dm, FPSCR_ROUND_TOZERO);
-}
-
-
-static u32 (* const fop_extfns[32])(int dd, int unused, int dm, u32 fpscr) = {
- [FEXT_TO_IDX(FEXT_FCPY)] = vfp_double_fcpy,
- [FEXT_TO_IDX(FEXT_FABS)] = vfp_double_fabs,
- [FEXT_TO_IDX(FEXT_FNEG)] = vfp_double_fneg,
- [FEXT_TO_IDX(FEXT_FSQRT)] = vfp_double_fsqrt,
- [FEXT_TO_IDX(FEXT_FCMP)] = vfp_double_fcmp,
- [FEXT_TO_IDX(FEXT_FCMPE)] = vfp_double_fcmpe,
- [FEXT_TO_IDX(FEXT_FCMPZ)] = vfp_double_fcmpz,
- [FEXT_TO_IDX(FEXT_FCMPEZ)] = vfp_double_fcmpez,
- [FEXT_TO_IDX(FEXT_FCVT)] = vfp_double_fcvts,
- [FEXT_TO_IDX(FEXT_FUITO)] = vfp_double_fuito,
- [FEXT_TO_IDX(FEXT_FSITO)] = vfp_double_fsito,
- [FEXT_TO_IDX(FEXT_FTOUI)] = vfp_double_ftoui,
- [FEXT_TO_IDX(FEXT_FTOUIZ)] = vfp_double_ftouiz,
- [FEXT_TO_IDX(FEXT_FTOSI)] = vfp_double_ftosi,
- [FEXT_TO_IDX(FEXT_FTOSIZ)] = vfp_double_ftosiz,
-};
-
-
-
-
-static u32
-vfp_double_fadd_nonnumber(struct vfp_double *vdd, struct vfp_double *vdn,
- struct vfp_double *vdm, u32 fpscr)
-{
- struct vfp_double *vdp;
- u32 exceptions = 0;
- int tn, tm;
-
- tn = vfp_double_type(vdn);
- tm = vfp_double_type(vdm);
-
- if (tn & tm & VFP_INFINITY) {
- /*
- * Two infinities. Are they different signs?
- */
- if (vdn->sign ^ vdm->sign) {
- /*
- * different signs -> invalid
- */
- exceptions = FPSCR_IOC;
- vdp = &vfp_double_default_qnan;
- } else {
- /*
- * same signs -> valid
- */
- vdp = vdn;
- }
- } else if (tn & VFP_INFINITY && tm & VFP_NUMBER) {
- /*
- * One infinity and one number -> infinity
- */
- vdp = vdn;
- } else {
- /*
- * 'n' is a NaN of some type
- */
- return vfp_propagate_nan(vdd, vdn, vdm, fpscr);
- }
- *vdd = *vdp;
- return exceptions;
-}
-
-static u32
-vfp_double_add(struct vfp_double *vdd, struct vfp_double *vdn,
- struct vfp_double *vdm, u32 fpscr)
-{
- u32 exp_diff;
- u64 m_sig;
-
- if (vdn->significand & (1ULL << 63) ||
- vdm->significand & (1ULL << 63)) {
- pr_info("VFP: bad FP values in %s\n", __func__);
- vfp_double_dump("VDN", vdn);
- vfp_double_dump("VDM", vdm);
- }
-
- /*
- * Ensure that 'n' is the largest magnitude number. Note that
- * if 'n' and 'm' have equal exponents, we do not swap them.
- * This ensures that NaN propagation works correctly.
- */
- if (vdn->exponent < vdm->exponent) {
- struct vfp_double *t = vdn;
- vdn = vdm;
- vdm = t;
- }
-
- /*
- * Is 'n' an infinity or a NaN? Note that 'm' may be a number,
- * infinity or a NaN here.
- */
- if (vdn->exponent == 2047)
- return vfp_double_fadd_nonnumber(vdd, vdn, vdm, fpscr);
-
- /*
- * We have two proper numbers, where 'vdn' is the larger magnitude.
- *
- * Copy 'n' to 'd' before doing the arithmetic.
- */
- *vdd = *vdn;
-
- /*
- * Align 'm' with the result.
- */
- exp_diff = vdn->exponent - vdm->exponent;
- m_sig = vfp_shiftright64jamming(vdm->significand, exp_diff);
-
- /*
- * If the signs are different, we are really subtracting.
- */
- if (vdn->sign ^ vdm->sign) {
- m_sig = vdn->significand - m_sig;
- if ((s64)m_sig < 0) {
- vdd->sign = vfp_sign_negate(vdd->sign);
- m_sig = -m_sig;
- }
- } else {
- m_sig += vdn->significand;
- }
- vdd->significand = m_sig;
-
- return 0;
-}
-
-static u32
-vfp_double_multiply(struct vfp_double *vdd, struct vfp_double *vdn,
- struct vfp_double *vdm, u32 fpscr)
-{
- vfp_double_dump("VDN", vdn);
- vfp_double_dump("VDM", vdm);
-
- /*
- * Ensure that 'n' is the largest magnitude number. Note that
- * if 'n' and 'm' have equal exponents, we do not swap them.
- * This ensures that NaN propagation works correctly.
- */
- if (vdn->exponent < vdm->exponent) {
- struct vfp_double *t = vdn;
- vdn = vdm;
- vdm = t;
- pr_debug("VFP: swapping M <-> N\n");
- }
-
- vdd->sign = vdn->sign ^ vdm->sign;
-
- /*
- * If 'n' is an infinity or NaN, handle it. 'm' may be anything.
- */
- if (vdn->exponent == 2047) {
- if (vdn->significand || (vdm->exponent == 2047 && vdm->significand))
- return vfp_propagate_nan(vdd, vdn, vdm, fpscr);
- if ((vdm->exponent | vdm->significand) == 0) {
- *vdd = vfp_double_default_qnan;
- return FPSCR_IOC;
- }
- vdd->exponent = vdn->exponent;
- vdd->significand = 0;
- return 0;
- }
-
- /*
- * If 'm' is zero, the result is always zero. In this case,
- * 'n' may be zero or a number, but it doesn't matter which.
- */
- if ((vdm->exponent | vdm->significand) == 0) {
- vdd->exponent = 0;
- vdd->significand = 0;
- return 0;
- }
-
- /*
- * We add 2 to the destination exponent for the same reason
- * as the addition case - though this time we have +1 from
- * each input operand.
- */
- vdd->exponent = vdn->exponent + vdm->exponent - 1023 + 2;
- vdd->significand = vfp_hi64multiply64(vdn->significand, vdm->significand);
-
- vfp_double_dump("VDD", vdd);
- return 0;
-}
-
-#define NEG_MULTIPLY (1 << 0)
-#define NEG_SUBTRACT (1 << 1)
-
-static u32
-vfp_double_multiply_accumulate(int dd, int dn, int dm, u32 fpscr, u32 negate, char *func)
-{
- struct vfp_double vdd, vdp, vdn, vdm;
- u32 exceptions;
-
- vfp_double_unpack(&vdn, vfp_get_double(dn));
- if (vdn.exponent == 0 && vdn.significand)
- vfp_double_normalise_denormal(&vdn);
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
- if (vdm.exponent == 0 && vdm.significand)
- vfp_double_normalise_denormal(&vdm);
-
- exceptions = vfp_double_multiply(&vdp, &vdn, &vdm, fpscr);
- if (negate & NEG_MULTIPLY)
- vdp.sign = vfp_sign_negate(vdp.sign);
-
- vfp_double_unpack(&vdn, vfp_get_double(dd));
- if (negate & NEG_SUBTRACT)
- vdn.sign = vfp_sign_negate(vdn.sign);
-
- exceptions |= vfp_double_add(&vdd, &vdn, &vdp, fpscr);
-
- return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, func);
-}
-
-/*
- * Standard operations
- */
-
-/*
- * sd = sd + (sn * sm)
- */
-static u32 vfp_double_fmac(int dd, int dn, int dm, u32 fpscr)
-{
- return vfp_double_multiply_accumulate(dd, dn, dm, fpscr, 0, "fmac");
-}
-
-/*
- * sd = sd - (sn * sm)
- */
-static u32 vfp_double_fnmac(int dd, int dn, int dm, u32 fpscr)
-{
- return vfp_double_multiply_accumulate(dd, dn, dm, fpscr, NEG_MULTIPLY, "fnmac");
-}
-
-/*
- * sd = -sd + (sn * sm)
- */
-static u32 vfp_double_fmsc(int dd, int dn, int dm, u32 fpscr)
-{
- return vfp_double_multiply_accumulate(dd, dn, dm, fpscr, NEG_SUBTRACT, "fmsc");
-}
-
-/*
- * sd = -sd - (sn * sm)
- */
-static u32 vfp_double_fnmsc(int dd, int dn, int dm, u32 fpscr)
-{
- return vfp_double_multiply_accumulate(dd, dn, dm, fpscr, NEG_SUBTRACT | NEG_MULTIPLY, "fnmsc");
-}
-
-/*
- * sd = sn * sm
- */
-static u32 vfp_double_fmul(int dd, int dn, int dm, u32 fpscr)
-{
- struct vfp_double vdd, vdn, vdm;
- u32 exceptions;
-
- vfp_double_unpack(&vdn, vfp_get_double(dn));
- if (vdn.exponent == 0 && vdn.significand)
- vfp_double_normalise_denormal(&vdn);
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
- if (vdm.exponent == 0 && vdm.significand)
- vfp_double_normalise_denormal(&vdm);
-
- exceptions = vfp_double_multiply(&vdd, &vdn, &vdm, fpscr);
- return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, "fmul");
-}
-
-/*
- * sd = -(sn * sm)
- */
-static u32 vfp_double_fnmul(int dd, int dn, int dm, u32 fpscr)
-{
- struct vfp_double vdd, vdn, vdm;
- u32 exceptions;
-
- vfp_double_unpack(&vdn, vfp_get_double(dn));
- if (vdn.exponent == 0 && vdn.significand)
- vfp_double_normalise_denormal(&vdn);
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
- if (vdm.exponent == 0 && vdm.significand)
- vfp_double_normalise_denormal(&vdm);
-
- exceptions = vfp_double_multiply(&vdd, &vdn, &vdm, fpscr);
- vdd.sign = vfp_sign_negate(vdd.sign);
-
- return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, "fnmul");
-}
-
-/*
- * sd = sn + sm
- */
-static u32 vfp_double_fadd(int dd, int dn, int dm, u32 fpscr)
-{
- struct vfp_double vdd, vdn, vdm;
- u32 exceptions;
-
- vfp_double_unpack(&vdn, vfp_get_double(dn));
- if (vdn.exponent == 0 && vdn.significand)
- vfp_double_normalise_denormal(&vdn);
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
- if (vdm.exponent == 0 && vdm.significand)
- vfp_double_normalise_denormal(&vdm);
-
- exceptions = vfp_double_add(&vdd, &vdn, &vdm, fpscr);
-
- return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, "fadd");
-}
-
-/*
- * sd = sn - sm
- */
-static u32 vfp_double_fsub(int dd, int dn, int dm, u32 fpscr)
-{
- struct vfp_double vdd, vdn, vdm;
- u32 exceptions;
-
- vfp_double_unpack(&vdn, vfp_get_double(dn));
- if (vdn.exponent == 0 && vdn.significand)
- vfp_double_normalise_denormal(&vdn);
-
- vfp_double_unpack(&vdm, vfp_get_double(dm));
- if (vdm.exponent == 0 && vdm.significand)
- vfp_double_normalise_denormal(&vdm);
-
- /*
- * Subtraction is like addition, but with a negated operand.
- */
- vdm.sign = vfp_sign_negate(vdm.sign);
-
- exceptions = vfp_double_add(&vdd, &vdn, &vdm, fpscr);
-
- return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, "fsub");
-}
-
-/*
- * sd = sn / sm
- */
-static u32 vfp_double_fdiv(int dd, int dn, int dm, u32 fpscr)
-{
- struct vfp_double vdd, vdn, vdm;
- u32 exceptions = 0;
- int tm, tn;
-
- vfp_double_unpack(&vdn, vfp_get_double(dn));
- vfp_double_unpack(&vdm, vfp_get_double(dm));
-
- vdd.sign = vdn.sign ^ vdm.sign;
-
- tn = vfp_double_type(&vdn);
- tm = vfp_double_type(&vdm);
-
- /*
- * Is n a NAN?
- */
- if (tn & VFP_NAN)
- goto vdn_nan;
-
- /*
- * Is m a NAN?
- */
- if (tm & VFP_NAN)
- goto vdm_nan;
-
- /*
- * If n and m are infinity, the result is invalid
- * If n and m are zero, the result is invalid
- */
- if (tm & tn & (VFP_INFINITY|VFP_ZERO))
- goto invalid;
-
- /*
- * If n is infinity, the result is infinity
- */
- if (tn & VFP_INFINITY)
- goto infinity;
-
- /*
- * If m is zero, raise div0 exceptions
- */
- if (tm & VFP_ZERO)
- goto divzero;
-
- /*
- * If m is infinity, or n is zero, the result is zero
- */
- if (tm & VFP_INFINITY || tn & VFP_ZERO)
- goto zero;
-
- if (tn & VFP_DENORMAL)
- vfp_double_normalise_denormal(&vdn);
- if (tm & VFP_DENORMAL)
- vfp_double_normalise_denormal(&vdm);
-
- /*
- * Ok, we have two numbers, we can perform division.
- */
- vdd.exponent = vdn.exponent - vdm.exponent + 1023 - 1;
- vdm.significand <<= 1;
- if (vdm.significand <= (2 * vdn.significand)) {
- vdn.significand >>= 1;
- vdd.exponent++;
- }
- vdd.significand = vfp_estimate_div128to64(vdn.significand, 0, vdm.significand);
- if ((vdd.significand & 0x1ff) <= 2) {
- u64 termh, terml, remh, reml;
- mul64to128(&termh, &terml, vdm.significand, vdd.significand);
- sub128(&remh, &reml, vdn.significand, 0, termh, terml);
- while ((s64)remh < 0) {
- vdd.significand -= 1;
- add128(&remh, &reml, remh, reml, 0, vdm.significand);
- }
- vdd.significand |= (reml != 0);
- }
- return vfp_double_normaliseround(dd, &vdd, fpscr, 0, "fdiv");
-
- vdn_nan:
- exceptions = vfp_propagate_nan(&vdd, &vdn, &vdm, fpscr);
- pack:
- vfp_put_double(dd, vfp_double_pack(&vdd));
- return exceptions;
-
- vdm_nan:
- exceptions = vfp_propagate_nan(&vdd, &vdm, &vdn, fpscr);
- goto pack;
-
- zero:
- vdd.exponent = 0;
- vdd.significand = 0;
- goto pack;
-
- divzero:
- exceptions = FPSCR_DZC;
- infinity:
- vdd.exponent = 2047;
- vdd.significand = 0;
- goto pack;
-
- invalid:
- vfp_put_double(dd, vfp_double_pack(&vfp_double_default_qnan));
- return FPSCR_IOC;
-}
-
-static u32 (* const fop_fns[16])(int dd, int dn, int dm, u32 fpscr) = {
- [FOP_TO_IDX(FOP_FMAC)] = vfp_double_fmac,
- [FOP_TO_IDX(FOP_FNMAC)] = vfp_double_fnmac,
- [FOP_TO_IDX(FOP_FMSC)] = vfp_double_fmsc,
- [FOP_TO_IDX(FOP_FNMSC)] = vfp_double_fnmsc,
- [FOP_TO_IDX(FOP_FMUL)] = vfp_double_fmul,
- [FOP_TO_IDX(FOP_FNMUL)] = vfp_double_fnmul,
- [FOP_TO_IDX(FOP_FADD)] = vfp_double_fadd,
- [FOP_TO_IDX(FOP_FSUB)] = vfp_double_fsub,
- [FOP_TO_IDX(FOP_FDIV)] = vfp_double_fdiv,
-};
-
-#define FREG_BANK(x) ((x) & 0x0c)
-#define FREG_IDX(x) ((x) & 3)
-
-u32 vfp_double_cpdo(u32 inst, u32 fpscr)
-{
- u32 op = inst & FOP_MASK;
- u32 exceptions = 0;
- unsigned int dd = vfp_get_sd(inst);
- unsigned int dn = vfp_get_sn(inst);
- unsigned int dm = vfp_get_sm(inst);
- unsigned int vecitr, veclen, vecstride;
- u32 (*fop)(int, int, s32, u32);
-
- veclen = fpscr & FPSCR_LENGTH_MASK;
- vecstride = (1 + ((fpscr & FPSCR_STRIDE_MASK) == FPSCR_STRIDE_MASK)) * 2;
-
- /*
- * If destination bank is zero, vector length is always '1'.
- * ARM DDI0100F C5.1.3, C5.3.2.
- */
- if (FREG_BANK(dd) == 0)
- veclen = 0;
-
- pr_debug("VFP: vecstride=%u veclen=%u\n", vecstride,
- (veclen >> FPSCR_LENGTH_BIT) + 1);
-
- fop = (op == FOP_EXT) ? fop_extfns[dn] : fop_fns[FOP_TO_IDX(op)];
- if (!fop)
- goto invalid;
-
- for (vecitr = 0; vecitr <= veclen; vecitr += 1 << FPSCR_LENGTH_BIT) {
- u32 except;
-
- if (op == FOP_EXT)
- pr_debug("VFP: itr%d (d%u.%u) = op[%u] (d%u.%u)\n",
- vecitr >> FPSCR_LENGTH_BIT,
- dd >> 1, dd & 1, dn,
- dm >> 1, dm & 1);
- else
- pr_debug("VFP: itr%d (d%u.%u) = (d%u.%u) op[%u] (d%u.%u)\n",
- vecitr >> FPSCR_LENGTH_BIT,
- dd >> 1, dd & 1,
- dn >> 1, dn & 1,
- FOP_TO_IDX(op),
- dm >> 1, dm & 1);
-
- except = fop(dd, dn, dm, fpscr);
- pr_debug("VFP: itr%d: exceptions=%08x\n",
- vecitr >> FPSCR_LENGTH_BIT, except);
-
- exceptions |= except;
-
- /*
- * This ensures that comparisons only operate on scalars;
- * comparisons always return with one FPSCR status bit set.
- */
- if (except & (FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V))
- break;
-
- /*
- * CHECK: It appears to be undefined whether we stop when
- * we encounter an exception. We continue.
- */
-
- dd = FREG_BANK(dd) + ((FREG_IDX(dd) + vecstride) & 6);
- dn = FREG_BANK(dn) + ((FREG_IDX(dn) + vecstride) & 6);
- if (FREG_BANK(dm) != 0)
- dm = FREG_BANK(dm) + ((FREG_IDX(dm) + vecstride) & 6);
- }
- return exceptions;
-
- invalid:
- return ~0;
-}
+++ /dev/null
-/*
- * linux/arch/arm/vfp/vfphw.S
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This code is called from the kernel's undefined instruction trap.
- * r9 holds the return address for successful handling.
- * lr holds the return address for unrecognised instructions.
- * r10 points at the start of the private FP workspace in the thread structure
- * sp points to a struct pt_regs (as defined in include/asm/proc/ptrace.h)
- */
-#include <asm/thread_info.h>
-#include <asm/vfpmacros.h>
-#include "../kernel/entry-header.S"
-
- .macro DBGSTR, str
-#ifdef DEBUG
- stmfd sp!, {r0-r3, ip, lr}
- add r0, pc, #4
- bl printk
- b 1f
- .asciz "<7>VFP: \str\n"
- .balign 4
-1: ldmfd sp!, {r0-r3, ip, lr}
-#endif
- .endm
-
- .macro DBGSTR1, str, arg
-#ifdef DEBUG
- stmfd sp!, {r0-r3, ip, lr}
- mov r1, \arg
- add r0, pc, #4
- bl printk
- b 1f
- .asciz "<7>VFP: \str\n"
- .balign 4
-1: ldmfd sp!, {r0-r3, ip, lr}
-#endif
- .endm
-
- .macro DBGSTR3, str, arg1, arg2, arg3
-#ifdef DEBUG
- stmfd sp!, {r0-r3, ip, lr}
- mov r3, \arg3
- mov r2, \arg2
- mov r1, \arg1
- add r0, pc, #4
- bl printk
- b 1f
- .asciz "<7>VFP: \str\n"
- .balign 4
-1: ldmfd sp!, {r0-r3, ip, lr}
-#endif
- .endm
-
-
-@ VFP hardware support entry point.
-@
-@ r0 = faulted instruction
-@ r5 = faulted PC+4
-@ r9 = successful return
-@ r10 = vfp_state union
-@ lr = failure return
-
- .globl vfp_support_entry
-vfp_support_entry:
- DBGSTR3 "instr %08x pc %08x state %p", r0, r5, r10
-
- VFPFMRX r1, FPEXC @ Is the VFP enabled?
- DBGSTR1 "fpexc %08x", r1
- tst r1, #FPEXC_ENABLE
- bne look_for_VFP_exceptions @ VFP is already enabled
-
- DBGSTR1 "enable %x", r10
- ldr r3, last_VFP_context_address
- orr r1, r1, #FPEXC_ENABLE @ user FPEXC has the enable bit set
- ldr r4, [r3] @ last_VFP_context pointer
- bic r2, r1, #FPEXC_EXCEPTION @ make sure exceptions are disabled
- cmp r4, r10
- beq check_for_exception @ we are returning to the same
- @ process, so the registers are
- @ still there. In this case, we do
- @ not want to drop a pending exception.
-
- VFPFMXR FPEXC, r2 @ enable VFP, disable any pending
- @ exceptions, so we can get at the
- @ rest of it
-
- @ Save out the current registers to the old thread state
-
- DBGSTR1 "save old state %p", r4
- cmp r4, #0
- beq no_old_VFP_process
- VFPFMRX r2, FPSCR @ current status
- VFPFMRX r6, FPINST @ FPINST (always there, rev0 onwards)
- tst r1, #FPEXC_FPV2 @ is there an FPINST2 to read?
- VFPFMRX r8, FPINST2, NE @ FPINST2 if needed - avoids reading
- @ nonexistant reg on rev0
- VFPFSTMIA r4 @ save the working registers
- add r4, r4, #8*16+4
- stmia r4, {r1, r2, r6, r8} @ save FPEXC, FPSCR, FPINST, FPINST2
- @ and point r4 at the word at the
- @ start of the register dump
-
-no_old_VFP_process:
- DBGSTR1 "load state %p", r10
- str r10, [r3] @ update the last_VFP_context pointer
- @ Load the saved state back into the VFP
- add r4, r10, #8*16+4
- ldmia r4, {r1, r2, r6, r8} @ load FPEXC, FPSCR, FPINST, FPINST2
- VFPFLDMIA r10 @ reload the working registers while
- @ FPEXC is in a safe state
- tst r1, #FPEXC_FPV2 @ is there an FPINST2 to write?
- VFPFMXR FPINST2, r8, NE @ FPINST2 if needed - avoids writing
- @ nonexistant reg on rev0
- VFPFMXR FPINST, r6
- VFPFMXR FPSCR, r2 @ restore status
-
-check_for_exception:
- tst r1, #FPEXC_EXCEPTION
- bne process_exception @ might as well handle the pending
- @ exception before retrying branch
- @ out before setting an FPEXC that
- @ stops us reading stuff
- VFPFMXR FPEXC, r1 @ restore FPEXC last
- sub r5, r5, #4
- str r5, [sp, #S_PC] @ retry the instruction
- mov pc, r9 @ we think we have handled things
-
-
-look_for_VFP_exceptions:
- tst r1, #FPEXC_EXCEPTION
- bne process_exception
- VFPFMRX r2, FPSCR
- tst r2, #FPSCR_IXE @ IXE doesn't set FPEXC_EXCEPTION !
- bne process_exception
-
- @ Fall into hand on to next handler - appropriate coproc instr
- @ not recognised by VFP
-
- DBGSTR "not VFP"
- mov pc, lr
-
-process_exception:
- DBGSTR "bounce"
- sub r5, r5, #4
- str r5, [sp, #S_PC] @ retry the instruction on exit from
- @ the imprecise exception handling in
- @ the support code
- mov r2, sp @ nothing stacked - regdump is at TOS
- mov lr, r9 @ setup for a return to the user code.
-
- @ Now call the C code to package up the bounce to the support code
- @ r0 holds the trigger instruction
- @ r1 holds the FPEXC value
- @ r2 pointer to register dump
- b VFP9_bounce @ we have handled this - the support
- @ code will raise an exception if
- @ required. If not, the user code will
- @ retry the faulted instruction
-
-last_VFP_context_address:
- .word last_VFP_context
-
- .globl vfp_get_float
-vfp_get_float:
- add pc, pc, r0, lsl #3
- mov r0, r0
- .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- mrc p10, 0, r0, c\dr, c0, 0 @ fmrs r0, s0
- mov pc, lr
- mrc p10, 0, r0, c\dr, c0, 4 @ fmrs r0, s1
- mov pc, lr
- .endr
-
- .globl vfp_put_float
-vfp_put_float:
- add pc, pc, r0, lsl #3
- mov r0, r0
- .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- mcr p10, 0, r1, c\dr, c0, 0 @ fmsr r0, s0
- mov pc, lr
- mcr p10, 0, r1, c\dr, c0, 4 @ fmsr r0, s1
- mov pc, lr
- .endr
-
- .globl vfp_get_double
-vfp_get_double:
- mov r0, r0, lsr #1
- add pc, pc, r0, lsl #3
- mov r0, r0
- .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- mrrc p10, 1, r0, r1, c\dr @ fmrrd r0, r1, d\dr
- mov pc, lr
- .endr
-
- .globl vfp_put_double
-vfp_put_double:
- mov r0, r0, lsr #1
- add pc, pc, r0, lsl #3
- mov r0, r0
- .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- mcrr p10, 1, r1, r2, c\dr @ fmrrd r1, r2, d\dr
- mov pc, lr
- .endr
+++ /dev/null
-/*
- * linux/arch/arm/vfp/vfpinstr.h
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * VFP instruction masks.
- */
-#define INST_CPRTDO(inst) (((inst) & 0x0f000000) == 0x0e000000)
-#define INST_CPRT(inst) ((inst) & (1 << 4))
-#define INST_CPRT_L(inst) ((inst) & (1 << 20))
-#define INST_CPRT_Rd(inst) (((inst) & (15 << 12)) >> 12)
-#define INST_CPRT_OP(inst) (((inst) >> 21) & 7)
-#define INST_CPNUM(inst) ((inst) & 0xf00)
-#define CPNUM(cp) ((cp) << 8)
-
-#define FOP_MASK (0x00b00040)
-#define FOP_FMAC (0x00000000)
-#define FOP_FNMAC (0x00000040)
-#define FOP_FMSC (0x00100000)
-#define FOP_FNMSC (0x00100040)
-#define FOP_FMUL (0x00200000)
-#define FOP_FNMUL (0x00200040)
-#define FOP_FADD (0x00300000)
-#define FOP_FSUB (0x00300040)
-#define FOP_FDIV (0x00800000)
-#define FOP_EXT (0x00b00040)
-
-#define FOP_TO_IDX(inst) ((inst & 0x00b00000) >> 20 | (inst & (1 << 6)) >> 4)
-
-#define FEXT_MASK (0x000f0080)
-#define FEXT_FCPY (0x00000000)
-#define FEXT_FABS (0x00000080)
-#define FEXT_FNEG (0x00010000)
-#define FEXT_FSQRT (0x00010080)
-#define FEXT_FCMP (0x00040000)
-#define FEXT_FCMPE (0x00040080)
-#define FEXT_FCMPZ (0x00050000)
-#define FEXT_FCMPEZ (0x00050080)
-#define FEXT_FCVT (0x00070080)
-#define FEXT_FUITO (0x00080000)
-#define FEXT_FSITO (0x00080080)
-#define FEXT_FTOUI (0x000c0000)
-#define FEXT_FTOUIZ (0x000c0080)
-#define FEXT_FTOSI (0x000d0000)
-#define FEXT_FTOSIZ (0x000d0080)
-
-#define FEXT_TO_IDX(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7)
-
-#define vfp_get_sd(inst) ((inst & 0x0000f000) >> 11 | (inst & (1 << 22)) >> 22)
-#define vfp_get_dd(inst) ((inst & 0x0000f000) >> 12)
-#define vfp_get_sm(inst) ((inst & 0x0000000f) << 1 | (inst & (1 << 5)) >> 5)
-#define vfp_get_dm(inst) ((inst & 0x0000000f))
-#define vfp_get_sn(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7)
-#define vfp_get_dn(inst) ((inst & 0x000f0000) >> 16)
-
-#define vfp_single(inst) (((inst) & 0x0000f00) == 0xa00)
-
-#define FPSCR_N (1 << 31)
-#define FPSCR_Z (1 << 30)
-#define FPSCR_C (1 << 29)
-#define FPSCR_V (1 << 28)
-
-/*
- * Since we aren't building with -mfpu=vfp, we need to code
- * these instructions using their MRC/MCR equivalents.
- */
-#define vfpreg(_vfp_) #_vfp_
-
-#define fmrx(_vfp_) ({ \
- u32 __v; \
- asm("mrc%? p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmrx %0, " #_vfp_ \
- : "=r" (__v)); \
- __v; \
- })
-
-#define fmxr(_vfp_,_var_) \
- asm("mcr%? p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmxr " #_vfp_ ", %0" \
- : : "r" (_var_))
-
-u32 vfp_single_cpdo(u32 inst, u32 fpscr);
-u32 vfp_single_cprt(u32 inst, u32 fpscr, struct pt_regs *regs);
-
-u32 vfp_double_cpdo(u32 inst, u32 fpscr);
+++ /dev/null
-/*
- * linux/arch/arm/vfp/vfpmodule.c
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <asm/vfp.h>
-
-#include "vfpinstr.h"
-#include "vfp.h"
-
-/*
- * Our undef handlers (in entry.S)
- */
-void vfp_testing_entry(void);
-void vfp_support_entry(void);
-
-void (*vfp_vector)(void) = vfp_testing_entry;
-union vfp_state *last_VFP_context;
-
-/*
- * Dual-use variable.
- * Used in startup: set to non-zero if VFP checks fail
- * After startup, holds VFP architecture
- */
-unsigned int VFP_arch;
-
-/*
- * Per-thread VFP initialisation.
- */
-void vfp_flush_thread(union vfp_state *vfp)
-{
- memset(vfp, 0, sizeof(union vfp_state));
-
- vfp->hard.fpexc = FPEXC_ENABLE;
- vfp->hard.fpscr = FPSCR_ROUND_NEAREST;
-
- /*
- * Disable VFP to ensure we initialise it first.
- */
- fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_ENABLE);
-
- /*
- * Ensure we don't try to overwrite our newly initialised
- * state information on the first fault.
- */
- if (last_VFP_context == vfp)
- last_VFP_context = NULL;
-}
-
-/*
- * Per-thread VFP cleanup.
- */
-void vfp_release_thread(union vfp_state *vfp)
-{
- if (last_VFP_context == vfp)
- last_VFP_context = NULL;
-}
-
-/*
- * Raise a SIGFPE for the current process.
- * sicode describes the signal being raised.
- */
-void vfp_raise_sigfpe(unsigned int sicode, struct pt_regs *regs)
-{
- siginfo_t info;
-
- memset(&info, 0, sizeof(info));
-
- info.si_signo = SIGFPE;
- info.si_code = sicode;
- info.si_addr = (void *)(instruction_pointer(regs) - 4);
-
- /*
- * This is the same as NWFPE, because it's not clear what
- * this is used for
- */
- current->thread.error_code = 0;
- current->thread.trap_no = 6;
-
- force_sig_info(SIGFPE, &info, current);
-}
-
-static void vfp_panic(char *reason)
-{
- int i;
-
- printk(KERN_ERR "VFP: Error: %s\n", reason);
- printk(KERN_ERR "VFP: EXC 0x%08x SCR 0x%08x INST 0x%08x\n",
- fmrx(FPEXC), fmrx(FPSCR), fmrx(FPINST));
- for (i = 0; i < 32; i += 2)
- printk(KERN_ERR "VFP: s%2u: 0x%08x s%2u: 0x%08x\n",
- i, vfp_get_float(i), i+1, vfp_get_float(i+1));
-}
-
-/*
- * Process bitmask of exception conditions.
- */
-static void vfp_raise_exceptions(u32 exceptions, u32 inst, u32 fpscr, struct pt_regs *regs)
-{
- int si_code = 0;
-
- pr_debug("VFP: raising exceptions %08x\n", exceptions);
-
- if (exceptions == (u32)-1) {
- vfp_panic("unhandled bounce");
- vfp_raise_sigfpe(0, regs);
- return;
- }
-
- /*
- * If any of the status flags are set, update the FPSCR.
- * Comparison instructions always return at least one of
- * these flags set.
- */
- if (exceptions & (FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V))
- fpscr &= ~(FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V);
-
- fpscr |= exceptions;
-
- fmxr(FPSCR, fpscr);
-
-#define RAISE(stat,en,sig) \
- if (exceptions & stat && fpscr & en) \
- si_code = sig;
-
- /*
- * These are arranged in priority order, least to highest.
- */
- RAISE(FPSCR_IXC, FPSCR_IXE, FPE_FLTRES);
- RAISE(FPSCR_UFC, FPSCR_UFE, FPE_FLTUND);
- RAISE(FPSCR_OFC, FPSCR_OFE, FPE_FLTOVF);
- RAISE(FPSCR_IOC, FPSCR_IOE, FPE_FLTINV);
-
- if (si_code)
- vfp_raise_sigfpe(si_code, regs);
-}
-
-/*
- * Emulate a VFP instruction.
- */
-static u32 vfp_emulate_instruction(u32 inst, u32 fpscr, struct pt_regs *regs)
-{
- u32 exceptions = (u32)-1;
-
- pr_debug("VFP: emulate: INST=0x%08x SCR=0x%08x\n", inst, fpscr);
-
- if (INST_CPRTDO(inst)) {
- if (!INST_CPRT(inst)) {
- /*
- * CPDO
- */
- if (vfp_single(inst)) {
- exceptions = vfp_single_cpdo(inst, fpscr);
- } else {
- exceptions = vfp_double_cpdo(inst, fpscr);
- }
- } else {
- /*
- * A CPRT instruction can not appear in FPINST2, nor
- * can it cause an exception. Therefore, we do not
- * have to emulate it.
- */
- }
- } else {
- /*
- * A CPDT instruction can not appear in FPINST2, nor can
- * it cause an exception. Therefore, we do not have to
- * emulate it.
- */
- }
- return exceptions;
-}
-
-/*
- * Package up a bounce condition.
- */
-void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
-{
- u32 fpscr, orig_fpscr, exceptions, inst;
-
- pr_debug("VFP: bounce: trigger %08x fpexc %08x\n", trigger, fpexc);
-
- /*
- * Enable access to the VFP so we can handle the bounce.
- */
- fmxr(FPEXC, fpexc & ~(FPEXC_EXCEPTION|FPEXC_INV|FPEXC_UFC|FPEXC_IOC));
-
- orig_fpscr = fpscr = fmrx(FPSCR);
-
- /*
- * If we are running with inexact exceptions enabled, we need to
- * emulate the trigger instruction. Note that as we're emulating
- * the trigger instruction, we need to increment PC.
- */
- if (fpscr & FPSCR_IXE) {
- regs->ARM_pc += 4;
- goto emulate;
- }
-
- barrier();
-
- /*
- * Modify fpscr to indicate the number of iterations remaining
- */
- if (fpexc & FPEXC_EXCEPTION) {
- u32 len;
-
- len = fpexc + (1 << FPEXC_LENGTH_BIT);
-
- fpscr &= ~FPSCR_LENGTH_MASK;
- fpscr |= (len & FPEXC_LENGTH_MASK) << (FPSCR_LENGTH_BIT - FPEXC_LENGTH_BIT);
- }
-
- /*
- * Handle the first FP instruction. We used to take note of the
- * FPEXC bounce reason, but this appears to be unreliable.
- * Emulate the bounced instruction instead.
- */
- inst = fmrx(FPINST);
- exceptions = vfp_emulate_instruction(inst, fpscr, regs);
- if (exceptions)
- vfp_raise_exceptions(exceptions, inst, orig_fpscr, regs);
-
- /*
- * If there isn't a second FP instruction, exit now.
- */
- if (!(fpexc & FPEXC_FPV2))
- return;
-
- /*
- * The barrier() here prevents fpinst2 being read
- * before the condition above.
- */
- barrier();
- trigger = fmrx(FPINST2);
- fpscr = fmrx(FPSCR);
-
- emulate:
- exceptions = vfp_emulate_instruction(trigger, fpscr, regs);
- if (exceptions)
- vfp_raise_exceptions(exceptions, trigger, orig_fpscr, regs);
-}
-
-/*
- * VFP support code initialisation.
- */
-static int __init vfp_init(void)
-{
- unsigned int vfpsid;
-
- /*
- * First check that there is a VFP that we can use.
- * The handler is already setup to just log calls, so
- * we just need to read the VFPSID register.
- */
- vfpsid = fmrx(FPSID);
-
- printk(KERN_INFO "VFP support v0.3: ");
- if (VFP_arch) {
- printk("not present\n");
- } else if (vfpsid & FPSID_NODOUBLE) {
- printk("no double precision support\n");
- } else {
- VFP_arch = (vfpsid & FPSID_ARCH_MASK) >> FPSID_ARCH_BIT; /* Extract the architecture version */
- printk("implementor %02x architecture %d part %02x variant %x rev %x\n",
- (vfpsid & FPSID_IMPLEMENTER_MASK) >> FPSID_IMPLEMENTER_BIT,
- (vfpsid & FPSID_ARCH_MASK) >> FPSID_ARCH_BIT,
- (vfpsid & FPSID_PART_MASK) >> FPSID_PART_BIT,
- (vfpsid & FPSID_VARIANT_MASK) >> FPSID_VARIANT_BIT,
- (vfpsid & FPSID_REV_MASK) >> FPSID_REV_BIT);
- vfp_vector = vfp_support_entry;
- }
- return 0;
-}
-
-late_initcall(vfp_init);
+++ /dev/null
-/*
- * linux/arch/arm/vfp/vfpsingle.c
- *
- * This code is derived in part from John R. Housers softfloat library, which
- * carries the following notice:
- *
- * ===========================================================================
- * This C source file is part of the SoftFloat IEC/IEEE Floating-point
- * Arithmetic Package, Release 2.
- *
- * Written by John R. Hauser. This work was made possible in part by the
- * International Computer Science Institute, located at Suite 600, 1947 Center
- * Street, Berkeley, California 94704. Funding was partially provided by the
- * National Science Foundation under grant MIP-9311980. The original version
- * of this code was written as part of a project to build a fixed-point vector
- * processor in collaboration with the University of California at Berkeley,
- * overseen by Profs. Nelson Morgan and John Wawrzynek. More information
- * is available through the web page `http://HTTP.CS.Berkeley.EDU/~jhauser/
- * arithmetic/softfloat.html'.
- *
- * THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort
- * has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
- * TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO
- * PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
- * AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
- *
- * Derivative works are acceptable, even for commercial purposes, so long as
- * (1) they include prominent notice that the work is derivative, and (2) they
- * include prominent notice akin to these three paragraphs for those parts of
- * this code that are retained.
- * ===========================================================================
- */
-#include <linux/kernel.h>
-#include <asm/bitops.h>
-#include <asm/ptrace.h>
-#include <asm/vfp.h>
-
-#include "vfpinstr.h"
-#include "vfp.h"
-
-static struct vfp_single vfp_single_default_qnan = {
- .exponent = 255,
- .sign = 0,
- .significand = VFP_SINGLE_SIGNIFICAND_QNAN,
-};
-
-static void vfp_single_dump(const char *str, struct vfp_single *s)
-{
- pr_debug("VFP: %s: sign=%d exponent=%d significand=%08x\n",
- str, s->sign != 0, s->exponent, s->significand);
-}
-
-static void vfp_single_normalise_denormal(struct vfp_single *vs)
-{
- int bits = 31 - fls(vs->significand);
-
- vfp_single_dump("normalise_denormal: in", vs);
-
- if (bits) {
- vs->exponent -= bits - 1;
- vs->significand <<= bits;
- }
-
- vfp_single_dump("normalise_denormal: out", vs);
-}
-
-#ifndef DEBUG
-#define vfp_single_normaliseround(sd,vsd,fpscr,except,func) __vfp_single_normaliseround(sd,vsd,fpscr,except)
-u32 __vfp_single_normaliseround(int sd, struct vfp_single *vs, u32 fpscr, u32 exceptions)
-#else
-u32 vfp_single_normaliseround(int sd, struct vfp_single *vs, u32 fpscr, u32 exceptions, const char *func)
-#endif
-{
- u32 significand, incr, rmode;
- int exponent, shift, underflow;
-
- vfp_single_dump("pack: in", vs);
-
- /*
- * Infinities and NaNs are a special case.
- */
- if (vs->exponent == 255 && (vs->significand == 0 || exceptions))
- goto pack;
-
- /*
- * Special-case zero.
- */
- if (vs->significand == 0) {
- vs->exponent = 0;
- goto pack;
- }
-
- exponent = vs->exponent;
- significand = vs->significand;
-
- /*
- * Normalise first. Note that we shift the significand up to
- * bit 31, so we have VFP_SINGLE_LOW_BITS + 1 below the least
- * significant bit.
- */
- shift = 32 - fls(significand);
- if (shift < 32 && shift) {
- exponent -= shift;
- significand <<= shift;
- }
-
-#ifdef DEBUG
- vs->exponent = exponent;
- vs->significand = significand;
- vfp_single_dump("pack: normalised", vs);
-#endif
-
- /*
- * Tiny number?
- */
- underflow = exponent < 0;
- if (underflow) {
- significand = vfp_shiftright32jamming(significand, -exponent);
- exponent = 0;
-#ifdef DEBUG
- vs->exponent = exponent;
- vs->significand = significand;
- vfp_single_dump("pack: tiny number", vs);
-#endif
- if (!(significand & ((1 << (VFP_SINGLE_LOW_BITS + 1)) - 1)))
- underflow = 0;
- }
-
- /*
- * Select rounding increment.
- */
- incr = 0;
- rmode = fpscr & FPSCR_RMODE_MASK;
-
- if (rmode == FPSCR_ROUND_NEAREST) {
- incr = 1 << VFP_SINGLE_LOW_BITS;
- if ((significand & (1 << (VFP_SINGLE_LOW_BITS + 1))) == 0)
- incr -= 1;
- } else if (rmode == FPSCR_ROUND_TOZERO) {
- incr = 0;
- } else if ((rmode == FPSCR_ROUND_PLUSINF) ^ (vs->sign != 0))
- incr = (1 << (VFP_SINGLE_LOW_BITS + 1)) - 1;
-
- pr_debug("VFP: rounding increment = 0x%08x\n", incr);
-
- /*
- * Is our rounding going to overflow?
- */
- if ((significand + incr) < significand) {
- exponent += 1;
- significand = (significand >> 1) | (significand & 1);
- incr >>= 1;
-#ifdef DEBUG
- vs->exponent = exponent;
- vs->significand = significand;
- vfp_single_dump("pack: overflow", vs);
-#endif
- }
-
- /*
- * If any of the low bits (which will be shifted out of the
- * number) are non-zero, the result is inexact.
- */
- if (significand & ((1 << (VFP_SINGLE_LOW_BITS + 1)) - 1))
- exceptions |= FPSCR_IXC;
-
- /*
- * Do our rounding.
- */
- significand += incr;
-
- /*
- * Infinity?
- */
- if (exponent >= 254) {
- exceptions |= FPSCR_OFC | FPSCR_IXC;
- if (incr == 0) {
- vs->exponent = 253;
- vs->significand = 0x7fffffff;
- } else {
- vs->exponent = 255; /* infinity */
- vs->significand = 0;
- }
- } else {
- if (significand >> (VFP_SINGLE_LOW_BITS + 1) == 0)
- exponent = 0;
- if (exponent || significand > 0x80000000)
- underflow = 0;
- if (underflow)
- exceptions |= FPSCR_UFC;
- vs->exponent = exponent;
- vs->significand = significand >> 1;
- }
-
- pack:
- vfp_single_dump("pack: final", vs);
- {
- s32 d = vfp_single_pack(vs);
- pr_debug("VFP: %s: d(s%d)=%08x exceptions=%08x\n", func,
- sd, d, exceptions);
- vfp_put_float(sd, d);
- }
-
- return exceptions;
-}
-
-/*
- * Propagate the NaN, setting exceptions if it is signalling.
- * 'n' is always a NaN. 'm' may be a number, NaN or infinity.
- */
-static u32
-vfp_propagate_nan(struct vfp_single *vsd, struct vfp_single *vsn,
- struct vfp_single *vsm, u32 fpscr)
-{
- struct vfp_single *nan;
- int tn, tm = 0;
-
- tn = vfp_single_type(vsn);
-
- if (vsm)
- tm = vfp_single_type(vsm);
-
- if (fpscr & FPSCR_DEFAULT_NAN)
- /*
- * Default NaN mode - always returns a quiet NaN
- */
- nan = &vfp_single_default_qnan;
- else {
- /*
- * Contemporary mode - select the first signalling
- * NAN, or if neither are signalling, the first
- * quiet NAN.
- */
- if (tn == VFP_SNAN || (tm != VFP_SNAN && tn == VFP_QNAN))
- nan = vsn;
- else
- nan = vsm;
- /*
- * Make the NaN quiet.
- */
- nan->significand |= VFP_SINGLE_SIGNIFICAND_QNAN;
- }
-
- *vsd = *nan;
-
- /*
- * If one was a signalling NAN, raise invalid operation.
- */
- return tn == VFP_SNAN || tm == VFP_SNAN ? FPSCR_IOC : 0x100;
-}
-
-
-/*
- * Extended operations
- */
-static u32 vfp_single_fabs(int sd, int unused, s32 m, u32 fpscr)
-{
- vfp_put_float(sd, vfp_single_packed_abs(m));
- return 0;
-}
-
-static u32 vfp_single_fcpy(int sd, int unused, s32 m, u32 fpscr)
-{
- vfp_put_float(sd, m);
- return 0;
-}
-
-static u32 vfp_single_fneg(int sd, int unused, s32 m, u32 fpscr)
-{
- vfp_put_float(sd, vfp_single_packed_negate(m));
- return 0;
-}
-
-static const u16 sqrt_oddadjust[] = {
- 0x0004, 0x0022, 0x005d, 0x00b1, 0x011d, 0x019f, 0x0236, 0x02e0,
- 0x039c, 0x0468, 0x0545, 0x0631, 0x072b, 0x0832, 0x0946, 0x0a67
-};
-
-static const u16 sqrt_evenadjust[] = {
- 0x0a2d, 0x08af, 0x075a, 0x0629, 0x051a, 0x0429, 0x0356, 0x029e,
- 0x0200, 0x0179, 0x0109, 0x00af, 0x0068, 0x0034, 0x0012, 0x0002
-};
-
-u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand)
-{
- int index;
- u32 z, a;
-
- if ((significand & 0xc0000000) != 0x40000000) {
- printk(KERN_WARNING "VFP: estimate_sqrt: invalid significand\n");
- }
-
- a = significand << 1;
- index = (a >> 27) & 15;
- if (exponent & 1) {
- z = 0x4000 + (a >> 17) - sqrt_oddadjust[index];
- z = ((a / z) << 14) + (z << 15);
- a >>= 1;
- } else {
- z = 0x8000 + (a >> 17) - sqrt_evenadjust[index];
- z = a / z + z;
- z = (z >= 0x20000) ? 0xffff8000 : (z << 15);
- if (z <= a)
- return (s32)a >> 1;
- }
- return (u32)(((u64)a << 31) / z) + (z >> 1);
-}
-
-static u32 vfp_single_fsqrt(int sd, int unused, s32 m, u32 fpscr)
-{
- struct vfp_single vsm, vsd;
- int ret, tm;
-
- vfp_single_unpack(&vsm, m);
- tm = vfp_single_type(&vsm);
- if (tm & (VFP_NAN|VFP_INFINITY)) {
- struct vfp_single *vsp = &vsd;
-
- if (tm & VFP_NAN)
- ret = vfp_propagate_nan(vsp, &vsm, NULL, fpscr);
- else if (vsm.sign == 0) {
- sqrt_copy:
- vsp = &vsm;
- ret = 0;
- } else {
- sqrt_invalid:
- vsp = &vfp_single_default_qnan;
- ret = FPSCR_IOC;
- }
- vfp_put_float(sd, vfp_single_pack(vsp));
- return ret;
- }
-
- /*
- * sqrt(+/- 0) == +/- 0
- */
- if (tm & VFP_ZERO)
- goto sqrt_copy;
-
- /*
- * Normalise a denormalised number
- */
- if (tm & VFP_DENORMAL)
- vfp_single_normalise_denormal(&vsm);
-
- /*
- * sqrt(<0) = invalid
- */
- if (vsm.sign)
- goto sqrt_invalid;
-
- vfp_single_dump("sqrt", &vsm);
-
- /*
- * Estimate the square root.
- */
- vsd.sign = 0;
- vsd.exponent = ((vsm.exponent - 127) >> 1) + 127;
- vsd.significand = vfp_estimate_sqrt_significand(vsm.exponent, vsm.significand) + 2;
-
- vfp_single_dump("sqrt estimate", &vsd);
-
- /*
- * And now adjust.
- */
- if ((vsd.significand & VFP_SINGLE_LOW_BITS_MASK) <= 5) {
- if (vsd.significand < 2) {
- vsd.significand = 0xffffffff;
- } else {
- u64 term;
- s64 rem;
- vsm.significand <<= !(vsm.exponent & 1);
- term = (u64)vsd.significand * vsd.significand;
- rem = ((u64)vsm.significand << 32) - term;
-
- pr_debug("VFP: term=%016llx rem=%016llx\n", term, rem);
-
- while (rem < 0) {
- vsd.significand -= 1;
- rem += ((u64)vsd.significand << 1) | 1;
- }
- vsd.significand |= rem != 0;
- }
- }
- vsd.significand = vfp_shiftright32jamming(vsd.significand, 1);
-
- return vfp_single_normaliseround(sd, &vsd, fpscr, 0, "fsqrt");
-}
-
-/*
- * Equal := ZC
- * Less than := N
- * Greater than := C
- * Unordered := CV
- */
-static u32 vfp_compare(int sd, int signal_on_qnan, s32 m, u32 fpscr)
-{
- s32 d;
- u32 ret = 0;
-
- d = vfp_get_float(sd);
- if (vfp_single_packed_exponent(m) == 255 && vfp_single_packed_mantissa(m)) {
- ret |= FPSCR_C | FPSCR_V;
- if (signal_on_qnan || !(vfp_single_packed_mantissa(m) & (1 << (VFP_SINGLE_MANTISSA_BITS - 1))))
- /*
- * Signalling NaN, or signalling on quiet NaN
- */
- ret |= FPSCR_IOC;
- }
-
- if (vfp_single_packed_exponent(d) == 255 && vfp_single_packed_mantissa(d)) {
- ret |= FPSCR_C | FPSCR_V;
- if (signal_on_qnan || !(vfp_single_packed_mantissa(d) & (1 << (VFP_SINGLE_MANTISSA_BITS - 1))))
- /*
- * Signalling NaN, or signalling on quiet NaN
- */
- ret |= FPSCR_IOC;
- }
-
- if (ret == 0) {
- if (d == m || vfp_single_packed_abs(d | m) == 0) {
- /*
- * equal
- */
- ret |= FPSCR_Z | FPSCR_C;
- } else if (vfp_single_packed_sign(d ^ m)) {
- /*
- * different signs
- */
- if (vfp_single_packed_sign(d))
- /*
- * d is negative, so d < m
- */
- ret |= FPSCR_N;
- else
- /*
- * d is positive, so d > m
- */
- ret |= FPSCR_C;
- } else if ((vfp_single_packed_sign(d) != 0) ^ (d < m)) {
- /*
- * d < m
- */
- ret |= FPSCR_N;
- } else if ((vfp_single_packed_sign(d) != 0) ^ (d > m)) {
- /*
- * d > m
- */
- ret |= FPSCR_C;
- }
- }
- return ret;
-}
-
-static u32 vfp_single_fcmp(int sd, int unused, s32 m, u32 fpscr)
-{
- return vfp_compare(sd, 0, m, fpscr);
-}
-
-static u32 vfp_single_fcmpe(int sd, int unused, s32 m, u32 fpscr)
-{
- return vfp_compare(sd, 1, m, fpscr);
-}
-
-static u32 vfp_single_fcmpz(int sd, int unused, s32 m, u32 fpscr)
-{
- return vfp_compare(sd, 0, 0, fpscr);
-}
-
-static u32 vfp_single_fcmpez(int sd, int unused, s32 m, u32 fpscr)
-{
- return vfp_compare(sd, 1, 0, fpscr);
-}
-
-static u32 vfp_single_fcvtd(int dd, int unused, s32 m, u32 fpscr)
-{
- struct vfp_single vsm;
- struct vfp_double vdd;
- int tm;
- u32 exceptions = 0;
-
- vfp_single_unpack(&vsm, m);
-
- tm = vfp_single_type(&vsm);
-
- /*
- * If we have a signalling NaN, signal invalid operation.
- */
- if (tm == VFP_SNAN)
- exceptions = FPSCR_IOC;
-
- if (tm & VFP_DENORMAL)
- vfp_single_normalise_denormal(&vsm);
-
- vdd.sign = vsm.sign;
- vdd.significand = (u64)vsm.significand << 32;
-
- /*
- * If we have an infinity or NaN, the exponent must be 2047.
- */
- if (tm & (VFP_INFINITY|VFP_NAN)) {
- vdd.exponent = 2047;
- if (tm & VFP_NAN)
- vdd.significand |= VFP_DOUBLE_SIGNIFICAND_QNAN;
- goto pack_nan;
- } else if (tm & VFP_ZERO)
- vdd.exponent = 0;
- else
- vdd.exponent = vsm.exponent + (1023 - 127);
-
- /*
- * Technically, if bit 0 of dd is set, this is an invalid
- * instruction. However, we ignore this for efficiency.
- */
- return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, "fcvtd");
-
- pack_nan:
- vfp_put_double(dd, vfp_double_pack(&vdd));
- return exceptions;
-}
-
-static u32 vfp_single_fuito(int sd, int unused, s32 m, u32 fpscr)
-{
- struct vfp_single vs;
-
- vs.sign = 0;
- vs.exponent = 127 + 31 - 1;
- vs.significand = (u32)m;
-
- return vfp_single_normaliseround(sd, &vs, fpscr, 0, "fuito");
-}
-
-static u32 vfp_single_fsito(int sd, int unused, s32 m, u32 fpscr)
-{
- struct vfp_single vs;
-
- vs.sign = (m & 0x80000000) >> 16;
- vs.exponent = 127 + 31 - 1;
- vs.significand = vs.sign ? -m : m;
-
- return vfp_single_normaliseround(sd, &vs, fpscr, 0, "fsito");
-}
-
-static u32 vfp_single_ftoui(int sd, int unused, s32 m, u32 fpscr)
-{
- struct vfp_single vsm;
- u32 d, exceptions = 0;
- int rmode = fpscr & FPSCR_RMODE_MASK;
- int tm;
-
- vfp_single_unpack(&vsm, m);
- vfp_single_dump("VSM", &vsm);
-
- /*
- * Do we have a denormalised number?
- */
- tm = vfp_single_type(&vsm);
- if (tm & VFP_DENORMAL)
- exceptions |= FPSCR_IDC;
-
- if (tm & VFP_NAN)
- vsm.sign = 0;
-
- if (vsm.exponent >= 127 + 32) {
- d = vsm.sign ? 0 : 0xffffffff;
- exceptions = FPSCR_IOC;
- } else if (vsm.exponent >= 127 - 1) {
- int shift = 127 + 31 - vsm.exponent;
- u32 rem, incr = 0;
-
- /*
- * 2^0 <= m < 2^32-2^8
- */
- d = (vsm.significand << 1) >> shift;
- rem = vsm.significand << (33 - shift);
-
- if (rmode == FPSCR_ROUND_NEAREST) {
- incr = 0x80000000;
- if ((d & 1) == 0)
- incr -= 1;
- } else if (rmode == FPSCR_ROUND_TOZERO) {
- incr = 0;
- } else if ((rmode == FPSCR_ROUND_PLUSINF) ^ (vsm.sign != 0)) {
- incr = ~0;
- }
-
- if ((rem + incr) < rem) {
- if (d < 0xffffffff)
- d += 1;
- else
- exceptions |= FPSCR_IOC;
- }
-
- if (d && vsm.sign) {
- d = 0;
- exceptions |= FPSCR_IOC;
- } else if (rem)
- exceptions |= FPSCR_IXC;
- } else {
- d = 0;
- if (vsm.exponent | vsm.significand) {
- exceptions |= FPSCR_IXC;
- if (rmode == FPSCR_ROUND_PLUSINF && vsm.sign == 0)
- d = 1;
- else if (rmode == FPSCR_ROUND_MINUSINF && vsm.sign) {
- d = 0;
- exceptions |= FPSCR_IOC;
- }
- }
- }
-
- pr_debug("VFP: ftoui: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions);
-
- vfp_put_float(sd, d);
-
- return exceptions;
-}
-
-static u32 vfp_single_ftouiz(int sd, int unused, s32 m, u32 fpscr)
-{
- return vfp_single_ftoui(sd, unused, m, FPSCR_ROUND_TOZERO);
-}
-
-static u32 vfp_single_ftosi(int sd, int unused, s32 m, u32 fpscr)
-{
- struct vfp_single vsm;
- u32 d, exceptions = 0;
- int rmode = fpscr & FPSCR_RMODE_MASK;
-
- vfp_single_unpack(&vsm, m);
- vfp_single_dump("VSM", &vsm);
-
- /*
- * Do we have a denormalised number?
- */
- if (vfp_single_type(&vsm) & VFP_DENORMAL)
- exceptions |= FPSCR_IDC;
-
- if (vsm.exponent >= 127 + 32) {
- /*
- * m >= 2^31-2^7: invalid
- */
- d = 0x7fffffff;
- if (vsm.sign)
- d = ~d;
- exceptions |= FPSCR_IOC;
- } else if (vsm.exponent >= 127 - 1) {
- int shift = 127 + 31 - vsm.exponent;
- u32 rem, incr = 0;
-
- /* 2^0 <= m <= 2^31-2^7 */
- d = (vsm.significand << 1) >> shift;
- rem = vsm.significand << (33 - shift);
-
- if (rmode == FPSCR_ROUND_NEAREST) {
- incr = 0x80000000;
- if ((d & 1) == 0)
- incr -= 1;
- } else if (rmode == FPSCR_ROUND_TOZERO) {
- incr = 0;
- } else if ((rmode == FPSCR_ROUND_PLUSINF) ^ (vsm.sign != 0)) {
- incr = ~0;
- }
-
- if ((rem + incr) < rem && d < 0xffffffff)
- d += 1;
- if (d > 0x7fffffff + (vsm.sign != 0)) {
- d = 0x7fffffff + (vsm.sign != 0);
- exceptions |= FPSCR_IOC;
- } else if (rem)
- exceptions |= FPSCR_IXC;
-
- if (vsm.sign)
- d = -d;
- } else {
- d = 0;
- if (vsm.exponent | vsm.significand) {
- exceptions |= FPSCR_IXC;
- if (rmode == FPSCR_ROUND_PLUSINF && vsm.sign == 0)
- d = 1;
- else if (rmode == FPSCR_ROUND_MINUSINF && vsm.sign)
- d = -1;
- }
- }
-
- pr_debug("VFP: ftosi: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions);
-
- vfp_put_float(sd, (s32)d);
-
- return exceptions;
-}
-
-static u32 vfp_single_ftosiz(int sd, int unused, s32 m, u32 fpscr)
-{
- return vfp_single_ftosi(sd, unused, m, FPSCR_ROUND_TOZERO);
-}
-
-static u32 (* const fop_extfns[32])(int sd, int unused, s32 m, u32 fpscr) = {
- [FEXT_TO_IDX(FEXT_FCPY)] = vfp_single_fcpy,
- [FEXT_TO_IDX(FEXT_FABS)] = vfp_single_fabs,
- [FEXT_TO_IDX(FEXT_FNEG)] = vfp_single_fneg,
- [FEXT_TO_IDX(FEXT_FSQRT)] = vfp_single_fsqrt,
- [FEXT_TO_IDX(FEXT_FCMP)] = vfp_single_fcmp,
- [FEXT_TO_IDX(FEXT_FCMPE)] = vfp_single_fcmpe,
- [FEXT_TO_IDX(FEXT_FCMPZ)] = vfp_single_fcmpz,
- [FEXT_TO_IDX(FEXT_FCMPEZ)] = vfp_single_fcmpez,
- [FEXT_TO_IDX(FEXT_FCVT)] = vfp_single_fcvtd,
- [FEXT_TO_IDX(FEXT_FUITO)] = vfp_single_fuito,
- [FEXT_TO_IDX(FEXT_FSITO)] = vfp_single_fsito,
- [FEXT_TO_IDX(FEXT_FTOUI)] = vfp_single_ftoui,
- [FEXT_TO_IDX(FEXT_FTOUIZ)] = vfp_single_ftouiz,
- [FEXT_TO_IDX(FEXT_FTOSI)] = vfp_single_ftosi,
- [FEXT_TO_IDX(FEXT_FTOSIZ)] = vfp_single_ftosiz,
-};
-
-
-
-
-
-static u32
-vfp_single_fadd_nonnumber(struct vfp_single *vsd, struct vfp_single *vsn,
- struct vfp_single *vsm, u32 fpscr)
-{
- struct vfp_single *vsp;
- u32 exceptions = 0;
- int tn, tm;
-
- tn = vfp_single_type(vsn);
- tm = vfp_single_type(vsm);
-
- if (tn & tm & VFP_INFINITY) {
- /*
- * Two infinities. Are they different signs?
- */
- if (vsn->sign ^ vsm->sign) {
- /*
- * different signs -> invalid
- */
- exceptions = FPSCR_IOC;
- vsp = &vfp_single_default_qnan;
- } else {
- /*
- * same signs -> valid
- */
- vsp = vsn;
- }
- } else if (tn & VFP_INFINITY && tm & VFP_NUMBER) {
- /*
- * One infinity and one number -> infinity
- */
- vsp = vsn;
- } else {
- /*
- * 'n' is a NaN of some type
- */
- return vfp_propagate_nan(vsd, vsn, vsm, fpscr);
- }
- *vsd = *vsp;
- return exceptions;
-}
-
-static u32
-vfp_single_add(struct vfp_single *vsd, struct vfp_single *vsn,
- struct vfp_single *vsm, u32 fpscr)
-{
- u32 exp_diff, m_sig;
-
- if (vsn->significand & 0x80000000 ||
- vsm->significand & 0x80000000) {
- pr_info("VFP: bad FP values in %s\n", __func__);
- vfp_single_dump("VSN", vsn);
- vfp_single_dump("VSM", vsm);
- }
-
- /*
- * Ensure that 'n' is the largest magnitude number. Note that
- * if 'n' and 'm' have equal exponents, we do not swap them.
- * This ensures that NaN propagation works correctly.
- */
- if (vsn->exponent < vsm->exponent) {
- struct vfp_single *t = vsn;
- vsn = vsm;
- vsm = t;
- }
-
- /*
- * Is 'n' an infinity or a NaN? Note that 'm' may be a number,
- * infinity or a NaN here.
- */
- if (vsn->exponent == 255)
- return vfp_single_fadd_nonnumber(vsd, vsn, vsm, fpscr);
-
- /*
- * We have two proper numbers, where 'vsn' is the larger magnitude.
- *
- * Copy 'n' to 'd' before doing the arithmetic.
- */
- *vsd = *vsn;
-
- /*
- * Align both numbers.
- */
- exp_diff = vsn->exponent - vsm->exponent;
- m_sig = vfp_shiftright32jamming(vsm->significand, exp_diff);
-
- /*
- * If the signs are different, we are really subtracting.
- */
- if (vsn->sign ^ vsm->sign) {
- m_sig = vsn->significand - m_sig;
- if ((s32)m_sig < 0) {
- vsd->sign = vfp_sign_negate(vsd->sign);
- m_sig = -m_sig;
- } else if (m_sig == 0) {
- vsd->sign = (fpscr & FPSCR_RMODE_MASK) ==
- FPSCR_ROUND_MINUSINF ? 0x8000 : 0;
- }
- } else {
- m_sig = vsn->significand + m_sig;
- }
- vsd->significand = m_sig;
-
- return 0;
-}
-
-static u32
-vfp_single_multiply(struct vfp_single *vsd, struct vfp_single *vsn, struct vfp_single *vsm, u32 fpscr)
-{
- vfp_single_dump("VSN", vsn);
- vfp_single_dump("VSM", vsm);
-
- /*
- * Ensure that 'n' is the largest magnitude number. Note that
- * if 'n' and 'm' have equal exponents, we do not swap them.
- * This ensures that NaN propagation works correctly.
- */
- if (vsn->exponent < vsm->exponent) {
- struct vfp_single *t = vsn;
- vsn = vsm;
- vsm = t;
- pr_debug("VFP: swapping M <-> N\n");
- }
-
- vsd->sign = vsn->sign ^ vsm->sign;
-
- /*
- * If 'n' is an infinity or NaN, handle it. 'm' may be anything.
- */
- if (vsn->exponent == 255) {
- if (vsn->significand || (vsm->exponent == 255 && vsm->significand))
- return vfp_propagate_nan(vsd, vsn, vsm, fpscr);
- if ((vsm->exponent | vsm->significand) == 0) {
- *vsd = vfp_single_default_qnan;
- return FPSCR_IOC;
- }
- vsd->exponent = vsn->exponent;
- vsd->significand = 0;
- return 0;
- }
-
- /*
- * If 'm' is zero, the result is always zero. In this case,
- * 'n' may be zero or a number, but it doesn't matter which.
- */
- if ((vsm->exponent | vsm->significand) == 0) {
- vsd->exponent = 0;
- vsd->significand = 0;
- return 0;
- }
-
- /*
- * We add 2 to the destination exponent for the same reason as
- * the addition case - though this time we have +1 from each
- * input operand.
- */
- vsd->exponent = vsn->exponent + vsm->exponent - 127 + 2;
- vsd->significand = vfp_hi64to32jamming((u64)vsn->significand * vsm->significand);
-
- vfp_single_dump("VSD", vsd);
- return 0;
-}
-
-#define NEG_MULTIPLY (1 << 0)
-#define NEG_SUBTRACT (1 << 1)
-
-static u32
-vfp_single_multiply_accumulate(int sd, int sn, s32 m, u32 fpscr, u32 negate, char *func)
-{
- struct vfp_single vsd, vsp, vsn, vsm;
- u32 exceptions;
- s32 v;
-
- v = vfp_get_float(sn);
- pr_debug("VFP: s%u = %08x\n", sn, v);
- vfp_single_unpack(&vsn, v);
- if (vsn.exponent == 0 && vsn.significand)
- vfp_single_normalise_denormal(&vsn);
-
- vfp_single_unpack(&vsm, m);
- if (vsm.exponent == 0 && vsm.significand)
- vfp_single_normalise_denormal(&vsm);
-
- exceptions = vfp_single_multiply(&vsp, &vsn, &vsm, fpscr);
- if (negate & NEG_MULTIPLY)
- vsp.sign = vfp_sign_negate(vsp.sign);
-
- v = vfp_get_float(sd);
- pr_debug("VFP: s%u = %08x\n", sd, v);
- vfp_single_unpack(&vsn, v);
- if (negate & NEG_SUBTRACT)
- vsn.sign = vfp_sign_negate(vsn.sign);
-
- exceptions |= vfp_single_add(&vsd, &vsn, &vsp, fpscr);
-
- return vfp_single_normaliseround(sd, &vsd, fpscr, exceptions, func);
-}
-
-/*
- * Standard operations
- */
-
-/*
- * sd = sd + (sn * sm)
- */
-static u32 vfp_single_fmac(int sd, int sn, s32 m, u32 fpscr)
-{
- return vfp_single_multiply_accumulate(sd, sn, m, fpscr, 0, "fmac");
-}
-
-/*
- * sd = sd - (sn * sm)
- */
-static u32 vfp_single_fnmac(int sd, int sn, s32 m, u32 fpscr)
-{
- return vfp_single_multiply_accumulate(sd, sn, m, fpscr, NEG_MULTIPLY, "fnmac");
-}
-
-/*
- * sd = -sd + (sn * sm)
- */
-static u32 vfp_single_fmsc(int sd, int sn, s32 m, u32 fpscr)
-{
- return vfp_single_multiply_accumulate(sd, sn, m, fpscr, NEG_SUBTRACT, "fmsc");
-}
-
-/*
- * sd = -sd - (sn * sm)
- */
-static u32 vfp_single_fnmsc(int sd, int sn, s32 m, u32 fpscr)
-{
- return vfp_single_multiply_accumulate(sd, sn, m, fpscr, NEG_SUBTRACT | NEG_MULTIPLY, "fnmsc");
-}
-
-/*
- * sd = sn * sm
- */
-static u32 vfp_single_fmul(int sd, int sn, s32 m, u32 fpscr)
-{
- struct vfp_single vsd, vsn, vsm;
- u32 exceptions;
- s32 n = vfp_get_float(sn);
-
- pr_debug("VFP: s%u = %08x\n", sn, n);
-
- vfp_single_unpack(&vsn, n);
- if (vsn.exponent == 0 && vsn.significand)
- vfp_single_normalise_denormal(&vsn);
-
- vfp_single_unpack(&vsm, m);
- if (vsm.exponent == 0 && vsm.significand)
- vfp_single_normalise_denormal(&vsm);
-
- exceptions = vfp_single_multiply(&vsd, &vsn, &vsm, fpscr);
- return vfp_single_normaliseround(sd, &vsd, fpscr, exceptions, "fmul");
-}
-
-/*
- * sd = -(sn * sm)
- */
-static u32 vfp_single_fnmul(int sd, int sn, s32 m, u32 fpscr)
-{
- struct vfp_single vsd, vsn, vsm;
- u32 exceptions;
- s32 n = vfp_get_float(sn);
-
- pr_debug("VFP: s%u = %08x\n", sn, n);
-
- vfp_single_unpack(&vsn, n);
- if (vsn.exponent == 0 && vsn.significand)
- vfp_single_normalise_denormal(&vsn);
-
- vfp_single_unpack(&vsm, m);
- if (vsm.exponent == 0 && vsm.significand)
- vfp_single_normalise_denormal(&vsm);
-
- exceptions = vfp_single_multiply(&vsd, &vsn, &vsm, fpscr);
- vsd.sign = vfp_sign_negate(vsd.sign);
- return vfp_single_normaliseround(sd, &vsd, fpscr, exceptions, "fnmul");
-}
-
-/*
- * sd = sn + sm
- */
-static u32 vfp_single_fadd(int sd, int sn, s32 m, u32 fpscr)
-{
- struct vfp_single vsd, vsn, vsm;
- u32 exceptions;
- s32 n = vfp_get_float(sn);
-
- pr_debug("VFP: s%u = %08x\n", sn, n);
-
- /*
- * Unpack and normalise denormals.
- */
- vfp_single_unpack(&vsn, n);
- if (vsn.exponent == 0 && vsn.significand)
- vfp_single_normalise_denormal(&vsn);
-
- vfp_single_unpack(&vsm, m);
- if (vsm.exponent == 0 && vsm.significand)
- vfp_single_normalise_denormal(&vsm);
-
- exceptions = vfp_single_add(&vsd, &vsn, &vsm, fpscr);
-
- return vfp_single_normaliseround(sd, &vsd, fpscr, exceptions, "fadd");
-}
-
-/*
- * sd = sn - sm
- */
-static u32 vfp_single_fsub(int sd, int sn, s32 m, u32 fpscr)
-{
- /*
- * Subtraction is addition with one sign inverted.
- */
- return vfp_single_fadd(sd, sn, vfp_single_packed_negate(m), fpscr);
-}
-
-/*
- * sd = sn / sm
- */
-static u32 vfp_single_fdiv(int sd, int sn, s32 m, u32 fpscr)
-{
- struct vfp_single vsd, vsn, vsm;
- u32 exceptions = 0;
- s32 n = vfp_get_float(sn);
- int tm, tn;
-
- pr_debug("VFP: s%u = %08x\n", sn, n);
-
- vfp_single_unpack(&vsn, n);
- vfp_single_unpack(&vsm, m);
-
- vsd.sign = vsn.sign ^ vsm.sign;
-
- tn = vfp_single_type(&vsn);
- tm = vfp_single_type(&vsm);
-
- /*
- * Is n a NAN?
- */
- if (tn & VFP_NAN)
- goto vsn_nan;
-
- /*
- * Is m a NAN?
- */
- if (tm & VFP_NAN)
- goto vsm_nan;
-
- /*
- * If n and m are infinity, the result is invalid
- * If n and m are zero, the result is invalid
- */
- if (tm & tn & (VFP_INFINITY|VFP_ZERO))
- goto invalid;
-
- /*
- * If n is infinity, the result is infinity
- */
- if (tn & VFP_INFINITY)
- goto infinity;
-
- /*
- * If m is zero, raise div0 exception
- */
- if (tm & VFP_ZERO)
- goto divzero;
-
- /*
- * If m is infinity, or n is zero, the result is zero
- */
- if (tm & VFP_INFINITY || tn & VFP_ZERO)
- goto zero;
-
- if (tn & VFP_DENORMAL)
- vfp_single_normalise_denormal(&vsn);
- if (tm & VFP_DENORMAL)
- vfp_single_normalise_denormal(&vsm);
-
- /*
- * Ok, we have two numbers, we can perform division.
- */
- vsd.exponent = vsn.exponent - vsm.exponent + 127 - 1;
- vsm.significand <<= 1;
- if (vsm.significand <= (2 * vsn.significand)) {
- vsn.significand >>= 1;
- vsd.exponent++;
- }
- vsd.significand = ((u64)vsn.significand << 32) / vsm.significand;
- if ((vsd.significand & 0x3f) == 0)
- vsd.significand |= ((u64)vsm.significand * vsd.significand != (u64)vsn.significand << 32);
-
- return vfp_single_normaliseround(sd, &vsd, fpscr, 0, "fdiv");
-
- vsn_nan:
- exceptions = vfp_propagate_nan(&vsd, &vsn, &vsm, fpscr);
- pack:
- vfp_put_float(sd, vfp_single_pack(&vsd));
- return exceptions;
-
- vsm_nan:
- exceptions = vfp_propagate_nan(&vsd, &vsm, &vsn, fpscr);
- goto pack;
-
- zero:
- vsd.exponent = 0;
- vsd.significand = 0;
- goto pack;
-
- divzero:
- exceptions = FPSCR_DZC;
- infinity:
- vsd.exponent = 255;
- vsd.significand = 0;
- goto pack;
-
- invalid:
- vfp_put_float(sd, vfp_single_pack(&vfp_single_default_qnan));
- return FPSCR_IOC;
-}
-
-static u32 (* const fop_fns[16])(int sd, int sn, s32 m, u32 fpscr) = {
- [FOP_TO_IDX(FOP_FMAC)] = vfp_single_fmac,
- [FOP_TO_IDX(FOP_FNMAC)] = vfp_single_fnmac,
- [FOP_TO_IDX(FOP_FMSC)] = vfp_single_fmsc,
- [FOP_TO_IDX(FOP_FNMSC)] = vfp_single_fnmsc,
- [FOP_TO_IDX(FOP_FMUL)] = vfp_single_fmul,
- [FOP_TO_IDX(FOP_FNMUL)] = vfp_single_fnmul,
- [FOP_TO_IDX(FOP_FADD)] = vfp_single_fadd,
- [FOP_TO_IDX(FOP_FSUB)] = vfp_single_fsub,
- [FOP_TO_IDX(FOP_FDIV)] = vfp_single_fdiv,
-};
-
-#define FREG_BANK(x) ((x) & 0x18)
-#define FREG_IDX(x) ((x) & 7)
-
-u32 vfp_single_cpdo(u32 inst, u32 fpscr)
-{
- u32 op = inst & FOP_MASK;
- u32 exceptions = 0;
- unsigned int sd = vfp_get_sd(inst);
- unsigned int sn = vfp_get_sn(inst);
- unsigned int sm = vfp_get_sm(inst);
- unsigned int vecitr, veclen, vecstride;
- u32 (*fop)(int, int, s32, u32);
-
- veclen = fpscr & FPSCR_LENGTH_MASK;
- vecstride = 1 + ((fpscr & FPSCR_STRIDE_MASK) == FPSCR_STRIDE_MASK);
-
- /*
- * If destination bank is zero, vector length is always '1'.
- * ARM DDI0100F C5.1.3, C5.3.2.
- */
- if (FREG_BANK(sd) == 0)
- veclen = 0;
-
- pr_debug("VFP: vecstride=%u veclen=%u\n", vecstride,
- (veclen >> FPSCR_LENGTH_BIT) + 1);
-
- fop = (op == FOP_EXT) ? fop_extfns[sn] : fop_fns[FOP_TO_IDX(op)];
- if (!fop)
- goto invalid;
-
- for (vecitr = 0; vecitr <= veclen; vecitr += 1 << FPSCR_LENGTH_BIT) {
- s32 m = vfp_get_float(sm);
- u32 except;
-
- if (op == FOP_EXT)
- pr_debug("VFP: itr%d (s%u) = op[%u] (s%u=%08x)\n",
- vecitr >> FPSCR_LENGTH_BIT, sd, sn, sm, m);
- else
- pr_debug("VFP: itr%d (s%u) = (s%u) op[%u] (s%u=%08x)\n",
- vecitr >> FPSCR_LENGTH_BIT, sd, sn,
- FOP_TO_IDX(op), sm, m);
-
- except = fop(sd, sn, m, fpscr);
- pr_debug("VFP: itr%d: exceptions=%08x\n",
- vecitr >> FPSCR_LENGTH_BIT, except);
-
- exceptions |= except;
-
- /*
- * This ensures that comparisons only operate on scalars;
- * comparisons always return with one FPSCR status bit set.
- */
- if (except & (FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V))
- break;
-
- /*
- * CHECK: It appears to be undefined whether we stop when
- * we encounter an exception. We continue.
- */
-
- sd = FREG_BANK(sd) + ((FREG_IDX(sd) + vecstride) & 7);
- sn = FREG_BANK(sn) + ((FREG_IDX(sn) + vecstride) & 7);
- if (FREG_BANK(sm) != 0)
- sm = FREG_BANK(sm) + ((FREG_IDX(sm) + vecstride) & 7);
- }
- return exceptions;
-
- invalid:
- return (u32)-1;
-}
+++ /dev/null
-#include <stdio.h>
-
-
-void main()
-{
- int c;
- int comma=0;
- int count=0;
- while((c=getchar())!=EOF)
- {
- unsigned char x=c;
- if(comma)
- printf(",");
- else
- comma=1;
- if(count==8)
- {
- count=0;
- printf("\n");
- }
- if(count==0)
- printf("\t");
- printf("0x%02X",c);
- count++;
- }
- if(count)
- printf("\n");
- exit(0);
-}
-
-
+++ /dev/null
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <linux/sched.h>
-#include <linux/in6.h>
-#include <linux/interrupt.h>
-#include <linux/smp_lock.h>
-#include <linux/pm.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/tty.h>
-
-#include <asm/semaphore.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/checksum.h>
-#include <asm/io.h>
-#include <asm/hardirq.h>
-#include <asm/delay.h>
-#include <asm/irq.h>
-#include <asm/pgtable.h>
-
-extern void dump_thread(struct pt_regs *, struct user *);
-extern unsigned long get_cmos_time(void);
-extern void __Udiv(void);
-extern void __Umod(void);
-extern void __Div(void);
-extern void __Mod(void);
-extern void __ashrdi3(void);
-extern void iounmap(void *addr);
-
-/* Platform dependent support */
-EXPORT_SYMBOL(dump_thread);
-EXPORT_SYMBOL(enable_irq);
-EXPORT_SYMBOL(disable_irq);
-EXPORT_SYMBOL(kernel_thread);
-EXPORT_SYMBOL(get_cmos_time);
-EXPORT_SYMBOL(loops_per_usec);
-
-/* String functions */
-EXPORT_SYMBOL(memcmp);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(strpbrk);
-EXPORT_SYMBOL(strstr);
-EXPORT_SYMBOL(strcpy);
-EXPORT_SYMBOL(strchr);
-EXPORT_SYMBOL(strcmp);
-EXPORT_SYMBOL(strlen);
-EXPORT_SYMBOL(strcat);
-EXPORT_SYMBOL(strncat);
-EXPORT_SYMBOL(strncmp);
-EXPORT_SYMBOL(strncpy);
-
-/* Math functions */
-EXPORT_SYMBOL(__Udiv);
-EXPORT_SYMBOL(__Umod);
-EXPORT_SYMBOL(__Div);
-EXPORT_SYMBOL(__Mod);
-EXPORT_SYMBOL(__ashrdi3);
-
-/* Memory functions */
-EXPORT_SYMBOL(__ioremap);
-EXPORT_SYMBOL(iounmap);
-
-/* Semaphore functions */
-EXPORT_SYMBOL(__up);
-EXPORT_SYMBOL(__down);
-EXPORT_SYMBOL(__down_interruptible);
-EXPORT_SYMBOL(__down_trylock);
-
-/* Export shadow registers for the CPU I/O pins */
-EXPORT_SYMBOL(genconfig_shadow);
-EXPORT_SYMBOL(port_pa_data_shadow);
-EXPORT_SYMBOL(port_pa_dir_shadow);
-EXPORT_SYMBOL(port_pb_data_shadow);
-EXPORT_SYMBOL(port_pb_dir_shadow);
-EXPORT_SYMBOL(port_pb_config_shadow);
-EXPORT_SYMBOL(port_g_data_shadow);
-
-/* Userspace access functions */
-EXPORT_SYMBOL(__copy_user_zeroing);
-EXPORT_SYMBOL(__copy_user);
-
-/* Cache flush functions */
-EXPORT_SYMBOL(flush_etrax_cache);
-EXPORT_SYMBOL(prepare_rx_descriptor);
-
-#undef memcpy
-#undef memset
-extern void * memset(void *, int, __kernel_size_t);
-extern void * memcpy(void *, const void *, __kernel_size_t);
-EXPORT_SYMBOL_NOVERS(memcpy);
-EXPORT_SYMBOL_NOVERS(memset);
-
-
+++ /dev/null
-#
-# i386/crypto/Makefile
-#
-# Arch-specific CryptoAPI modules.
-#
-
-obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
-
-aes-i586-y := aes-i586-asm.o aes.o
+++ /dev/null
-// -------------------------------------------------------------------------
-// Copyright (c) 2001, Dr Brian Gladman < >, Worcester, UK.
-// All rights reserved.
-//
-// LICENSE TERMS
-//
-// The free distribution and use of this software in both source and binary
-// form is allowed (with or without changes) provided that:
-//
-// 1. distributions of this source code include the above copyright
-// notice, this list of conditions and the following disclaimer//
-//
-// 2. distributions in binary form include the above copyright
-// notice, this list of conditions and the following disclaimer
-// in the documentation and/or other associated materials//
-//
-// 3. the copyright holder's name is not used to endorse products
-// built using this software without specific written permission.
-//
-//
-// ALTERNATIVELY, provided that this notice is retained in full, this product
-// may be distributed under the terms of the GNU General Public License (GPL),
-// in which case the provisions of the GPL apply INSTEAD OF those given above.
-//
-// Copyright (c) 2004 Linus Torvalds <torvalds@osdl.org>
-// Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
-
-// DISCLAIMER
-//
-// This software is provided 'as is' with no explicit or implied warranties
-// in respect of its properties including, but not limited to, correctness
-// and fitness for purpose.
-// -------------------------------------------------------------------------
-// Issue Date: 29/07/2002
-
-.file "aes-i586-asm.S"
-.text
-
-// aes_rval aes_enc_blk(const unsigned char in_blk[], unsigned char out_blk[], const aes_ctx cx[1])//
-// aes_rval aes_dec_blk(const unsigned char in_blk[], unsigned char out_blk[], const aes_ctx cx[1])//
-
-#define tlen 1024 // length of each of 4 'xor' arrays (256 32-bit words)
-
-// offsets to parameters with one register pushed onto stack
-
-#define in_blk 8 // input byte array address parameter
-#define out_blk 12 // output byte array address parameter
-#define ctx 16 // AES context structure
-
-// offsets in context structure
-
-#define ekey 0 // encryption key schedule base address
-#define nrnd 256 // number of rounds
-#define dkey 260 // decryption key schedule base address
-
-// register mapping for encrypt and decrypt subroutines
-
-#define r0 eax
-#define r1 ebx
-#define r2 ecx
-#define r3 edx
-#define r4 esi
-#define r5 edi
-#define r6 ebp
-
-#define eaxl al
-#define eaxh ah
-#define ebxl bl
-#define ebxh bh
-#define ecxl cl
-#define ecxh ch
-#define edxl dl
-#define edxh dh
-
-#define _h(reg) reg##h
-#define h(reg) _h(reg)
-
-#define _l(reg) reg##l
-#define l(reg) _l(reg)
-
-// This macro takes a 32-bit word representing a column and uses
-// each of its four bytes to index into four tables of 256 32-bit
-// words to obtain values that are then xored into the appropriate
-// output registers r0, r1, r4 or r5.
-
-// Parameters:
-// %1 out_state[0]
-// %2 out_state[1]
-// %3 out_state[2]
-// %4 out_state[3]
-// %5 table base address
-// %6 input register for the round (destroyed)
-// %7 scratch register for the round
-
-#define do_col(a1, a2, a3, a4, a5, a6, a7) \
- movzx %l(a6),%a7; \
- xor a5(,%a7,4),%a1; \
- movzx %h(a6),%a7; \
- shr $16,%a6; \
- xor a5+tlen(,%a7,4),%a2; \
- movzx %l(a6),%a7; \
- movzx %h(a6),%a6; \
- xor a5+2*tlen(,%a7,4),%a3; \
- xor a5+3*tlen(,%a6,4),%a4;
-
-// initialise output registers from the key schedule
-
-#define do_fcol(a1, a2, a3, a4, a5, a6, a7, a8) \
- mov 0 a8,%a1; \
- movzx %l(a6),%a7; \
- mov 12 a8,%a2; \
- xor a5(,%a7,4),%a1; \
- mov 4 a8,%a4; \
- movzx %h(a6),%a7; \
- shr $16,%a6; \
- xor a5+tlen(,%a7,4),%a2; \
- movzx %l(a6),%a7; \
- movzx %h(a6),%a6; \
- xor a5+3*tlen(,%a6,4),%a4; \
- mov %a3,%a6; \
- mov 8 a8,%a3; \
- xor a5+2*tlen(,%a7,4),%a3;
-
-// initialise output registers from the key schedule
-
-#define do_icol(a1, a2, a3, a4, a5, a6, a7, a8) \
- mov 0 a8,%a1; \
- movzx %l(a6),%a7; \
- mov 4 a8,%a2; \
- xor a5(,%a7,4),%a1; \
- mov 12 a8,%a4; \
- movzx %h(a6),%a7; \
- shr $16,%a6; \
- xor a5+tlen(,%a7,4),%a2; \
- movzx %l(a6),%a7; \
- movzx %h(a6),%a6; \
- xor a5+3*tlen(,%a6,4),%a4; \
- mov %a3,%a6; \
- mov 8 a8,%a3; \
- xor a5+2*tlen(,%a7,4),%a3;
-
-
-// original Gladman had conditional saves to MMX regs.
-#define save(a1, a2) \
- mov %a2,4*a1(%esp)
-
-#define restore(a1, a2) \
- mov 4*a2(%esp),%a1
-
-// This macro performs a forward encryption cycle. It is entered with
-// the first previous round column values in r0, r1, r4 and r5 and
-// exits with the final values in the same registers, using the MMX
-// registers mm0-mm1 or the stack for temporary storage
-
-// mov current column values into the MMX registers
-#define fwd_rnd(arg, table) \
- /* mov current column values into the MMX registers */ \
- mov %r0,%r2; \
- save (0,r1); \
- save (1,r5); \
- \
- /* compute new column values */ \
- do_fcol(r0,r5,r4,r1,table, r2,r3, arg); \
- do_col (r4,r1,r0,r5,table, r2,r3); \
- restore(r2,0); \
- do_col (r1,r0,r5,r4,table, r2,r3); \
- restore(r2,1); \
- do_col (r5,r4,r1,r0,table, r2,r3);
-
-// This macro performs an inverse encryption cycle. It is entered with
-// the first previous round column values in r0, r1, r4 and r5 and
-// exits with the final values in the same registers, using the MMX
-// registers mm0-mm1 or the stack for temporary storage
-
-#define inv_rnd(arg, table) \
- /* mov current column values into the MMX registers */ \
- mov %r0,%r2; \
- save (0,r1); \
- save (1,r5); \
- \
- /* compute new column values */ \
- do_icol(r0,r1,r4,r5, table, r2,r3, arg); \
- do_col (r4,r5,r0,r1, table, r2,r3); \
- restore(r2,0); \
- do_col (r1,r4,r5,r0, table, r2,r3); \
- restore(r2,1); \
- do_col (r5,r0,r1,r4, table, r2,r3);
-
-// AES (Rijndael) Encryption Subroutine
-
-.global aes_enc_blk
-
-.extern ft_tab
-.extern fl_tab
-
-.align 4
-
-aes_enc_blk:
- push %ebp
- mov ctx(%esp),%ebp // pointer to context
- xor %eax,%eax
-
-// CAUTION: the order and the values used in these assigns
-// rely on the register mappings
-
-1: push %ebx
- mov in_blk+4(%esp),%r2
- push %esi
- mov nrnd(%ebp),%r3 // number of rounds
- push %edi
- lea ekey(%ebp),%r6 // key pointer
-
-// input four columns and xor in first round key
-
- mov (%r2),%r0
- mov 4(%r2),%r1
- mov 8(%r2),%r4
- mov 12(%r2),%r5
- xor (%r6),%r0
- xor 4(%r6),%r1
- xor 8(%r6),%r4
- xor 12(%r6),%r5
-
- sub $8,%esp // space for register saves on stack
- add $16,%r6 // increment to next round key
- sub $10,%r3
- je 4f // 10 rounds for 128-bit key
- add $32,%r6
- sub $2,%r3
- je 3f // 12 rounds for 128-bit key
- add $32,%r6
-
-2: fwd_rnd( -64(%r6) ,ft_tab) // 14 rounds for 128-bit key
- fwd_rnd( -48(%r6) ,ft_tab)
-3: fwd_rnd( -32(%r6) ,ft_tab) // 12 rounds for 128-bit key
- fwd_rnd( -16(%r6) ,ft_tab)
-4: fwd_rnd( (%r6) ,ft_tab) // 10 rounds for 128-bit key
- fwd_rnd( +16(%r6) ,ft_tab)
- fwd_rnd( +32(%r6) ,ft_tab)
- fwd_rnd( +48(%r6) ,ft_tab)
- fwd_rnd( +64(%r6) ,ft_tab)
- fwd_rnd( +80(%r6) ,ft_tab)
- fwd_rnd( +96(%r6) ,ft_tab)
- fwd_rnd(+112(%r6) ,ft_tab)
- fwd_rnd(+128(%r6) ,ft_tab)
- fwd_rnd(+144(%r6) ,fl_tab) // last round uses a different table
-
-// move final values to the output array. CAUTION: the
-// order of these assigns rely on the register mappings
-
- add $8,%esp
- mov out_blk+12(%esp),%r6
- mov %r5,12(%r6)
- pop %edi
- mov %r4,8(%r6)
- pop %esi
- mov %r1,4(%r6)
- pop %ebx
- mov %r0,(%r6)
- pop %ebp
- mov $1,%eax
- ret
-
-// AES (Rijndael) Decryption Subroutine
-
-.global aes_dec_blk
-
-.extern it_tab
-.extern il_tab
-
-.align 4
-
-aes_dec_blk:
- push %ebp
- mov ctx(%esp),%ebp // pointer to context
- xor %eax,%eax
-
-// CAUTION: the order and the values used in these assigns
-// rely on the register mappings
-
-1: push %ebx
- mov in_blk+4(%esp),%r2
- push %esi
- mov nrnd(%ebp),%r3 // number of rounds
- push %edi
- lea dkey(%ebp),%r6 // key pointer
- mov %r3,%r0
- shl $4,%r0
- add %r0,%r6
-
-// input four columns and xor in first round key
-
- mov (%r2),%r0
- mov 4(%r2),%r1
- mov 8(%r2),%r4
- mov 12(%r2),%r5
- xor (%r6),%r0
- xor 4(%r6),%r1
- xor 8(%r6),%r4
- xor 12(%r6),%r5
-
- sub $8,%esp // space for register saves on stack
- sub $16,%r6 // increment to next round key
- sub $10,%r3
- je 4f // 10 rounds for 128-bit key
- sub $32,%r6
- sub $2,%r3
- je 3f // 12 rounds for 128-bit key
- sub $32,%r6
-
-2: inv_rnd( +64(%r6), it_tab) // 14 rounds for 128-bit key
- inv_rnd( +48(%r6), it_tab)
-3: inv_rnd( +32(%r6), it_tab) // 12 rounds for 128-bit key
- inv_rnd( +16(%r6), it_tab)
-4: inv_rnd( (%r6), it_tab) // 10 rounds for 128-bit key
- inv_rnd( -16(%r6), it_tab)
- inv_rnd( -32(%r6), it_tab)
- inv_rnd( -48(%r6), it_tab)
- inv_rnd( -64(%r6), it_tab)
- inv_rnd( -80(%r6), it_tab)
- inv_rnd( -96(%r6), it_tab)
- inv_rnd(-112(%r6), it_tab)
- inv_rnd(-128(%r6), it_tab)
- inv_rnd(-144(%r6), il_tab) // last round uses a different table
-
-// move final values to the output array. CAUTION: the
-// order of these assigns rely on the register mappings
-
- add $8,%esp
- mov out_blk+12(%esp),%r6
- mov %r5,12(%r6)
- pop %edi
- mov %r4,8(%r6)
- pop %esi
- mov %r1,4(%r6)
- pop %ebx
- mov %r0,(%r6)
- pop %ebp
- mov $1,%eax
- ret
-
+++ /dev/null
-/*
- *
- * Glue Code for optimized 586 assembler version of AES
- *
- * Copyright (c) 2002, Dr Brian Gladman <>, Worcester, UK.
- * All rights reserved.
- *
- * LICENSE TERMS
- *
- * The free distribution and use of this software in both source and binary
- * form is allowed (with or without changes) provided that:
- *
- * 1. distributions of this source code include the above copyright
- * notice, this list of conditions and the following disclaimer;
- *
- * 2. distributions in binary form include the above copyright
- * notice, this list of conditions and the following disclaimer
- * in the documentation and/or other associated materials;
- *
- * 3. the copyright holder's name is not used to endorse products
- * built using this software without specific written permission.
- *
- * ALTERNATIVELY, provided that this notice is retained in full, this product
- * may be distributed under the terms of the GNU General Public License (GPL),
- * in which case the provisions of the GPL apply INSTEAD OF those given above.
- *
- * DISCLAIMER
- *
- * This software is provided 'as is' with no explicit or implied warranties
- * in respect of its properties, including, but not limited to, correctness
- * and/or fitness for purpose.
- *
- * Copyright (c) 2003, Adam J. Richter <adam@yggdrasil.com> (conversion to
- * 2.5 API).
- * Copyright (c) 2003, 2004 Fruhwirth Clemens <clemens@endorphin.org>
- * Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
- *
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include <linux/linkage.h>
-
-asmlinkage void aes_enc_blk(const u8 *src, u8 *dst, void *ctx);
-asmlinkage void aes_dec_blk(const u8 *src, u8 *dst, void *ctx);
-
-#define AES_MIN_KEY_SIZE 16
-#define AES_MAX_KEY_SIZE 32
-#define AES_BLOCK_SIZE 16
-#define AES_KS_LENGTH 4 * AES_BLOCK_SIZE
-#define RC_LENGTH 29
-
-struct aes_ctx {
- u32 ekey[AES_KS_LENGTH];
- u32 rounds;
- u32 dkey[AES_KS_LENGTH];
-};
-
-#define WPOLY 0x011b
-#define u32_in(x) le32_to_cpu(*(const u32 *)(x))
-#define bytes2word(b0, b1, b2, b3) \
- (((u32)(b3) << 24) | ((u32)(b2) << 16) | ((u32)(b1) << 8) | (b0))
-
-/* define the finite field multiplies required for Rijndael */
-#define f2(x) ((x) ? pow[log[x] + 0x19] : 0)
-#define f3(x) ((x) ? pow[log[x] + 0x01] : 0)
-#define f9(x) ((x) ? pow[log[x] + 0xc7] : 0)
-#define fb(x) ((x) ? pow[log[x] + 0x68] : 0)
-#define fd(x) ((x) ? pow[log[x] + 0xee] : 0)
-#define fe(x) ((x) ? pow[log[x] + 0xdf] : 0)
-#define fi(x) ((x) ? pow[255 - log[x]]: 0)
-
-static inline u32 upr(u32 x, int n)
-{
- return (x << 8 * n) | (x >> (32 - 8 * n));
-}
-
-static inline u8 bval(u32 x, int n)
-{
- return x >> 8 * n;
-}
-
-/* The forward and inverse affine transformations used in the S-box */
-#define fwd_affine(x) \
- (w = (u32)x, w ^= (w<<1)^(w<<2)^(w<<3)^(w<<4), 0x63^(u8)(w^(w>>8)))
-
-#define inv_affine(x) \
- (w = (u32)x, w = (w<<1)^(w<<3)^(w<<6), 0x05^(u8)(w^(w>>8)))
-
-static u32 rcon_tab[RC_LENGTH];
-
-u32 ft_tab[4][256];
-u32 fl_tab[4][256];
-u32 ls_tab[4][256];
-u32 im_tab[4][256];
-u32 il_tab[4][256];
-u32 it_tab[4][256];
-
-void gen_tabs(void)
-{
- u32 i, w;
- u8 pow[512], log[256];
-
- /*
- * log and power tables for GF(2^8) finite field with
- * WPOLY as modular polynomial - the simplest primitive
- * root is 0x03, used here to generate the tables.
- */
- i = 0; w = 1;
-
- do {
- pow[i] = (u8)w;
- pow[i + 255] = (u8)w;
- log[w] = (u8)i++;
- w ^= (w << 1) ^ (w & 0x80 ? WPOLY : 0);
- } while (w != 1);
-
- for(i = 0, w = 1; i < RC_LENGTH; ++i) {
- rcon_tab[i] = bytes2word(w, 0, 0, 0);
- w = f2(w);
- }
-
- for(i = 0; i < 256; ++i) {
- u8 b;
-
- b = fwd_affine(fi((u8)i));
- w = bytes2word(f2(b), b, b, f3(b));
-
- /* tables for a normal encryption round */
- ft_tab[0][i] = w;
- ft_tab[1][i] = upr(w, 1);
- ft_tab[2][i] = upr(w, 2);
- ft_tab[3][i] = upr(w, 3);
- w = bytes2word(b, 0, 0, 0);
-
- /*
- * tables for last encryption round
- * (may also be used in the key schedule)
- */
- fl_tab[0][i] = w;
- fl_tab[1][i] = upr(w, 1);
- fl_tab[2][i] = upr(w, 2);
- fl_tab[3][i] = upr(w, 3);
-
- /*
- * table for key schedule if fl_tab above is
- * not of the required form
- */
- ls_tab[0][i] = w;
- ls_tab[1][i] = upr(w, 1);
- ls_tab[2][i] = upr(w, 2);
- ls_tab[3][i] = upr(w, 3);
-
- b = fi(inv_affine((u8)i));
- w = bytes2word(fe(b), f9(b), fd(b), fb(b));
-
- /* tables for the inverse mix column operation */
- im_tab[0][b] = w;
- im_tab[1][b] = upr(w, 1);
- im_tab[2][b] = upr(w, 2);
- im_tab[3][b] = upr(w, 3);
-
- /* tables for a normal decryption round */
- it_tab[0][i] = w;
- it_tab[1][i] = upr(w,1);
- it_tab[2][i] = upr(w,2);
- it_tab[3][i] = upr(w,3);
-
- w = bytes2word(b, 0, 0, 0);
-
- /* tables for last decryption round */
- il_tab[0][i] = w;
- il_tab[1][i] = upr(w,1);
- il_tab[2][i] = upr(w,2);
- il_tab[3][i] = upr(w,3);
- }
-}
-
-#define four_tables(x,tab,vf,rf,c) \
-( tab[0][bval(vf(x,0,c),rf(0,c))] ^ \
- tab[1][bval(vf(x,1,c),rf(1,c))] ^ \
- tab[2][bval(vf(x,2,c),rf(2,c))] ^ \
- tab[3][bval(vf(x,3,c),rf(3,c))] \
-)
-
-#define vf1(x,r,c) (x)
-#define rf1(r,c) (r)
-#define rf2(r,c) ((r-c)&3)
-
-#define inv_mcol(x) four_tables(x,im_tab,vf1,rf1,0)
-#define ls_box(x,c) four_tables(x,fl_tab,vf1,rf2,c)
-
-#define ff(x) inv_mcol(x)
-
-#define ke4(k,i) \
-{ \
- k[4*(i)+4] = ss[0] ^= ls_box(ss[3],3) ^ rcon_tab[i]; \
- k[4*(i)+5] = ss[1] ^= ss[0]; \
- k[4*(i)+6] = ss[2] ^= ss[1]; \
- k[4*(i)+7] = ss[3] ^= ss[2]; \
-}
-
-#define kel4(k,i) \
-{ \
- k[4*(i)+4] = ss[0] ^= ls_box(ss[3],3) ^ rcon_tab[i]; \
- k[4*(i)+5] = ss[1] ^= ss[0]; \
- k[4*(i)+6] = ss[2] ^= ss[1]; k[4*(i)+7] = ss[3] ^= ss[2]; \
-}
-
-#define ke6(k,i) \
-{ \
- k[6*(i)+ 6] = ss[0] ^= ls_box(ss[5],3) ^ rcon_tab[i]; \
- k[6*(i)+ 7] = ss[1] ^= ss[0]; \
- k[6*(i)+ 8] = ss[2] ^= ss[1]; \
- k[6*(i)+ 9] = ss[3] ^= ss[2]; \
- k[6*(i)+10] = ss[4] ^= ss[3]; \
- k[6*(i)+11] = ss[5] ^= ss[4]; \
-}
-
-#define kel6(k,i) \
-{ \
- k[6*(i)+ 6] = ss[0] ^= ls_box(ss[5],3) ^ rcon_tab[i]; \
- k[6*(i)+ 7] = ss[1] ^= ss[0]; \
- k[6*(i)+ 8] = ss[2] ^= ss[1]; \
- k[6*(i)+ 9] = ss[3] ^= ss[2]; \
-}
-
-#define ke8(k,i) \
-{ \
- k[8*(i)+ 8] = ss[0] ^= ls_box(ss[7],3) ^ rcon_tab[i]; \
- k[8*(i)+ 9] = ss[1] ^= ss[0]; \
- k[8*(i)+10] = ss[2] ^= ss[1]; \
- k[8*(i)+11] = ss[3] ^= ss[2]; \
- k[8*(i)+12] = ss[4] ^= ls_box(ss[3],0); \
- k[8*(i)+13] = ss[5] ^= ss[4]; \
- k[8*(i)+14] = ss[6] ^= ss[5]; \
- k[8*(i)+15] = ss[7] ^= ss[6]; \
-}
-
-#define kel8(k,i) \
-{ \
- k[8*(i)+ 8] = ss[0] ^= ls_box(ss[7],3) ^ rcon_tab[i]; \
- k[8*(i)+ 9] = ss[1] ^= ss[0]; \
- k[8*(i)+10] = ss[2] ^= ss[1]; \
- k[8*(i)+11] = ss[3] ^= ss[2]; \
-}
-
-#define kdf4(k,i) \
-{ \
- ss[0] = ss[0] ^ ss[2] ^ ss[1] ^ ss[3]; \
- ss[1] = ss[1] ^ ss[3]; \
- ss[2] = ss[2] ^ ss[3]; \
- ss[3] = ss[3]; \
- ss[4] = ls_box(ss[(i+3) % 4], 3) ^ rcon_tab[i]; \
- ss[i % 4] ^= ss[4]; \
- ss[4] ^= k[4*(i)]; \
- k[4*(i)+4] = ff(ss[4]); \
- ss[4] ^= k[4*(i)+1]; \
- k[4*(i)+5] = ff(ss[4]); \
- ss[4] ^= k[4*(i)+2]; \
- k[4*(i)+6] = ff(ss[4]); \
- ss[4] ^= k[4*(i)+3]; \
- k[4*(i)+7] = ff(ss[4]); \
-}
-
-#define kd4(k,i) \
-{ \
- ss[4] = ls_box(ss[(i+3) % 4], 3) ^ rcon_tab[i]; \
- ss[i % 4] ^= ss[4]; \
- ss[4] = ff(ss[4]); \
- k[4*(i)+4] = ss[4] ^= k[4*(i)]; \
- k[4*(i)+5] = ss[4] ^= k[4*(i)+1]; \
- k[4*(i)+6] = ss[4] ^= k[4*(i)+2]; \
- k[4*(i)+7] = ss[4] ^= k[4*(i)+3]; \
-}
-
-#define kdl4(k,i) \
-{ \
- ss[4] = ls_box(ss[(i+3) % 4], 3) ^ rcon_tab[i]; \
- ss[i % 4] ^= ss[4]; \
- k[4*(i)+4] = (ss[0] ^= ss[1]) ^ ss[2] ^ ss[3]; \
- k[4*(i)+5] = ss[1] ^ ss[3]; \
- k[4*(i)+6] = ss[0]; \
- k[4*(i)+7] = ss[1]; \
-}
-
-#define kdf6(k,i) \
-{ \
- ss[0] ^= ls_box(ss[5],3) ^ rcon_tab[i]; \
- k[6*(i)+ 6] = ff(ss[0]); \
- ss[1] ^= ss[0]; \
- k[6*(i)+ 7] = ff(ss[1]); \
- ss[2] ^= ss[1]; \
- k[6*(i)+ 8] = ff(ss[2]); \
- ss[3] ^= ss[2]; \
- k[6*(i)+ 9] = ff(ss[3]); \
- ss[4] ^= ss[3]; \
- k[6*(i)+10] = ff(ss[4]); \
- ss[5] ^= ss[4]; \
- k[6*(i)+11] = ff(ss[5]); \
-}
-
-#define kd6(k,i) \
-{ \
- ss[6] = ls_box(ss[5],3) ^ rcon_tab[i]; \
- ss[0] ^= ss[6]; ss[6] = ff(ss[6]); \
- k[6*(i)+ 6] = ss[6] ^= k[6*(i)]; \
- ss[1] ^= ss[0]; \
- k[6*(i)+ 7] = ss[6] ^= k[6*(i)+ 1]; \
- ss[2] ^= ss[1]; \
- k[6*(i)+ 8] = ss[6] ^= k[6*(i)+ 2]; \
- ss[3] ^= ss[2]; \
- k[6*(i)+ 9] = ss[6] ^= k[6*(i)+ 3]; \
- ss[4] ^= ss[3]; \
- k[6*(i)+10] = ss[6] ^= k[6*(i)+ 4]; \
- ss[5] ^= ss[4]; \
- k[6*(i)+11] = ss[6] ^= k[6*(i)+ 5]; \
-}
-
-#define kdl6(k,i) \
-{ \
- ss[0] ^= ls_box(ss[5],3) ^ rcon_tab[i]; \
- k[6*(i)+ 6] = ss[0]; \
- ss[1] ^= ss[0]; \
- k[6*(i)+ 7] = ss[1]; \
- ss[2] ^= ss[1]; \
- k[6*(i)+ 8] = ss[2]; \
- ss[3] ^= ss[2]; \
- k[6*(i)+ 9] = ss[3]; \
-}
-
-#define kdf8(k,i) \
-{ \
- ss[0] ^= ls_box(ss[7],3) ^ rcon_tab[i]; \
- k[8*(i)+ 8] = ff(ss[0]); \
- ss[1] ^= ss[0]; \
- k[8*(i)+ 9] = ff(ss[1]); \
- ss[2] ^= ss[1]; \
- k[8*(i)+10] = ff(ss[2]); \
- ss[3] ^= ss[2]; \
- k[8*(i)+11] = ff(ss[3]); \
- ss[4] ^= ls_box(ss[3],0); \
- k[8*(i)+12] = ff(ss[4]); \
- ss[5] ^= ss[4]; \
- k[8*(i)+13] = ff(ss[5]); \
- ss[6] ^= ss[5]; \
- k[8*(i)+14] = ff(ss[6]); \
- ss[7] ^= ss[6]; \
- k[8*(i)+15] = ff(ss[7]); \
-}
-
-#define kd8(k,i) \
-{ \
- u32 __g = ls_box(ss[7],3) ^ rcon_tab[i]; \
- ss[0] ^= __g; \
- __g = ff(__g); \
- k[8*(i)+ 8] = __g ^= k[8*(i)]; \
- ss[1] ^= ss[0]; \
- k[8*(i)+ 9] = __g ^= k[8*(i)+ 1]; \
- ss[2] ^= ss[1]; \
- k[8*(i)+10] = __g ^= k[8*(i)+ 2]; \
- ss[3] ^= ss[2]; \
- k[8*(i)+11] = __g ^= k[8*(i)+ 3]; \
- __g = ls_box(ss[3],0); \
- ss[4] ^= __g; \
- __g = ff(__g); \
- k[8*(i)+12] = __g ^= k[8*(i)+ 4]; \
- ss[5] ^= ss[4]; \
- k[8*(i)+13] = __g ^= k[8*(i)+ 5]; \
- ss[6] ^= ss[5]; \
- k[8*(i)+14] = __g ^= k[8*(i)+ 6]; \
- ss[7] ^= ss[6]; \
- k[8*(i)+15] = __g ^= k[8*(i)+ 7]; \
-}
-
-#define kdl8(k,i) \
-{ \
- ss[0] ^= ls_box(ss[7],3) ^ rcon_tab[i]; \
- k[8*(i)+ 8] = ss[0]; \
- ss[1] ^= ss[0]; \
- k[8*(i)+ 9] = ss[1]; \
- ss[2] ^= ss[1]; \
- k[8*(i)+10] = ss[2]; \
- ss[3] ^= ss[2]; \
- k[8*(i)+11] = ss[3]; \
-}
-
-static int
-aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
-{
- int i;
- u32 ss[8];
- struct aes_ctx *ctx = ctx_arg;
-
- /* encryption schedule */
-
- ctx->ekey[0] = ss[0] = u32_in(in_key);
- ctx->ekey[1] = ss[1] = u32_in(in_key + 4);
- ctx->ekey[2] = ss[2] = u32_in(in_key + 8);
- ctx->ekey[3] = ss[3] = u32_in(in_key + 12);
-
- switch(key_len) {
- case 16:
- for (i = 0; i < 9; i++)
- ke4(ctx->ekey, i);
- kel4(ctx->ekey, 9);
- ctx->rounds = 10;
- break;
-
- case 24:
- ctx->ekey[4] = ss[4] = u32_in(in_key + 16);
- ctx->ekey[5] = ss[5] = u32_in(in_key + 20);
- for (i = 0; i < 7; i++)
- ke6(ctx->ekey, i);
- kel6(ctx->ekey, 7);
- ctx->rounds = 12;
- break;
-
- case 32:
- ctx->ekey[4] = ss[4] = u32_in(in_key + 16);
- ctx->ekey[5] = ss[5] = u32_in(in_key + 20);
- ctx->ekey[6] = ss[6] = u32_in(in_key + 24);
- ctx->ekey[7] = ss[7] = u32_in(in_key + 28);
- for (i = 0; i < 6; i++)
- ke8(ctx->ekey, i);
- kel8(ctx->ekey, 6);
- ctx->rounds = 14;
- break;
-
- default:
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
-
- /* decryption schedule */
-
- ctx->dkey[0] = ss[0] = u32_in(in_key);
- ctx->dkey[1] = ss[1] = u32_in(in_key + 4);
- ctx->dkey[2] = ss[2] = u32_in(in_key + 8);
- ctx->dkey[3] = ss[3] = u32_in(in_key + 12);
-
- switch (key_len) {
- case 16:
- kdf4(ctx->dkey, 0);
- for (i = 1; i < 9; i++)
- kd4(ctx->dkey, i);
- kdl4(ctx->dkey, 9);
- break;
-
- case 24:
- ctx->dkey[4] = ff(ss[4] = u32_in(in_key + 16));
- ctx->dkey[5] = ff(ss[5] = u32_in(in_key + 20));
- kdf6(ctx->dkey, 0);
- for (i = 1; i < 7; i++)
- kd6(ctx->dkey, i);
- kdl6(ctx->dkey, 7);
- break;
-
- case 32:
- ctx->dkey[4] = ff(ss[4] = u32_in(in_key + 16));
- ctx->dkey[5] = ff(ss[5] = u32_in(in_key + 20));
- ctx->dkey[6] = ff(ss[6] = u32_in(in_key + 24));
- ctx->dkey[7] = ff(ss[7] = u32_in(in_key + 28));
- kdf8(ctx->dkey, 0);
- for (i = 1; i < 6; i++)
- kd8(ctx->dkey, i);
- kdl8(ctx->dkey, 6);
- break;
- }
- return 0;
-}
-
-static inline void aes_encrypt(void *ctx, u8 *dst, const u8 *src)
-{
- aes_enc_blk(src, dst, ctx);
-}
-static inline void aes_decrypt(void *ctx, u8 *dst, const u8 *src)
-{
- aes_dec_blk(src, dst, ctx);
-}
-
-
-static struct crypto_alg aes_alg = {
- .cra_name = "aes",
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct aes_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(aes_alg.cra_list),
- .cra_u = {
- .cipher = {
- .cia_min_keysize = AES_MIN_KEY_SIZE,
- .cia_max_keysize = AES_MAX_KEY_SIZE,
- .cia_setkey = aes_set_key,
- .cia_encrypt = aes_encrypt,
- .cia_decrypt = aes_decrypt
- }
- }
-};
-
-static int __init aes_init(void)
-{
- gen_tabs();
- return crypto_register_alg(&aes_alg);
-}
-
-static void __exit aes_fini(void)
-{
- crypto_unregister_alg(&aes_alg);
-}
-
-module_init(aes_init);
-module_exit(aes_fini);
-
-MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, i586 asm optimized");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("Fruhwirth Clemens, James Morris, Brian Gladman, Adam Richter");
-MODULE_ALIAS("aes");
+++ /dev/null
-#include <linux/bitops.h>
-#include <linux/module.h>
-
-/**
- * find_next_bit - find the first set bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The maximum size to search
- */
-int find_next_bit(const unsigned long *addr, int size, int offset)
-{
- const unsigned long *p = addr + (offset >> 5);
- int set = 0, bit = offset & 31, res;
-
- if (bit) {
- /*
- * Look for nonzero in the first 32 bits:
- */
- __asm__("bsfl %1,%0\n\t"
- "jne 1f\n\t"
- "movl $32, %0\n"
- "1:"
- : "=r" (set)
- : "r" (*p >> bit));
- if (set < (32 - bit))
- return set + offset;
- set = 32 - bit;
- p++;
- }
- /*
- * No set bit yet, search remaining full words for a bit
- */
- res = find_first_bit (p, size - 32 * (p - addr));
- return (offset + set + res);
-}
-EXPORT_SYMBOL(find_next_bit);
-
-/**
- * find_next_zero_bit - find the first zero bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The maximum size to search
- */
-int find_next_zero_bit(const unsigned long *addr, int size, int offset)
-{
- unsigned long * p = ((unsigned long *) addr) + (offset >> 5);
- int set = 0, bit = offset & 31, res;
-
- if (bit) {
- /*
- * Look for zero in the first 32 bits.
- */
- __asm__("bsfl %1,%0\n\t"
- "jne 1f\n\t"
- "movl $32, %0\n"
- "1:"
- : "=r" (set)
- : "r" (~(*p >> bit)));
- if (set < (32 - bit))
- return set + offset;
- set = 32 - bit;
- p++;
- }
- /*
- * No zero yet, search remaining full bytes for a zero
- */
- res = find_first_zero_bit (p, size - 32 * (p - (unsigned long *) addr));
- return (offset + set + res);
-}
-EXPORT_SYMBOL(find_next_zero_bit);
+++ /dev/null
-/*
- * Written by: Garry Forsgren, Unisys Corporation
- * Natalie Protasevich, Unisys Corporation
- * This file contains the code to configure and interface
- * with Unisys ES7000 series hardware system manager.
- *
- * Copyright (c) 2003 Unisys Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Unisys Corporation, Township Line & Union Meeting
- * Roads-A, Unisys Way, Blue Bell, Pennsylvania, 19424, or:
- *
- * http://www.unisys.com
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/smp.h>
-#include <linux/string.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/acpi.h>
-#include <asm/io.h>
-#include <asm/nmi.h>
-#include <asm/smp.h>
-#include <asm/apicdef.h>
-#include "es7000.h"
-
-/*
- * ES7000 Globals
- */
-
-volatile unsigned long *psai = NULL;
-struct mip_reg *mip_reg;
-struct mip_reg *host_reg;
-int mip_port;
-unsigned long mip_addr, host_addr;
-
-/*
- * Parse the OEM Table
- */
-
-void __init
-parse_unisys_oem (char *oemptr, int oem_entries)
-{
- int i;
- int success = 0;
- unsigned char type, size;
- unsigned long val;
- char *tp = NULL;
- struct psai *psaip = NULL;
- struct mip_reg_info *mi;
- struct mip_reg *host, *mip;
-
- tp = oemptr;
-
- tp += 8;
-
- for (i=0; i <= oem_entries; i++) {
- type = *tp++;
- size = *tp++;
- tp -= 2;
- switch (type) {
- case MIP_REG:
- mi = (struct mip_reg_info *)tp;
- val = MIP_RD_LO(mi->host_reg);
- host_addr = val;
- host = (struct mip_reg *)val;
- host_reg = __va(host);
- val = MIP_RD_LO(mi->mip_reg);
- mip_addr = val;
- mip = (struct mip_reg *)val;
- mip_reg = __va(mip);
- Dprintk("es7000_mipcfg: host_reg = 0x%lx \n",
- (unsigned long)host_reg);
- Dprintk("es7000_mipcfg: mip_reg = 0x%lx \n",
- (unsigned long)mip_reg);
- success++;
- break;
- case MIP_PSAI_REG:
- psaip = (struct psai *)tp;
- if (tp != NULL) {
- if (psaip->addr)
- psai = __va(psaip->addr);
- else
- psai = NULL;
- success++;
- }
- break;
- default:
- break;
- }
- if (i == 6) break;
- tp += size;
- }
-
- if (success < 2) {
- printk("\nNo ES7000 found.\n");
- es7000_plat = 0;
- } else {
- printk("\nEnabling ES7000 specific features...\n");
- es7000_plat = 1;
- }
- return;
-}
-
-int __init
-find_unisys_acpi_oem_table(unsigned long *oem_addr, int *length)
-{
- struct acpi_table_rsdp *rsdp = NULL;
- unsigned long rsdp_phys = 0;
- struct acpi_table_header *header = NULL;
- int i;
- struct acpi_table_sdt sdt;
-
- rsdp_phys = acpi_find_rsdp();
- rsdp = __va(rsdp_phys);
- if (rsdp->rsdt_address) {
- struct acpi_table_rsdt *mapped_rsdt = NULL;
- sdt.pa = rsdp->rsdt_address;
-
- header = (struct acpi_table_header *)
- __acpi_map_table(sdt.pa, sizeof(struct acpi_table_header));
- if (!header)
- return -ENODEV;
-
- sdt.count = (header->length - sizeof(struct acpi_table_header)) >> 3;
- mapped_rsdt = (struct acpi_table_rsdt *)
- __acpi_map_table(sdt.pa, header->length);
- if (!mapped_rsdt)
- return -ENODEV;
-
- header = &mapped_rsdt->header;
-
- for (i = 0; i < sdt.count; i++)
- sdt.entry[i].pa = (unsigned long) mapped_rsdt->entry[i];
- };
- for (i = 0; i < sdt.count; i++) {
-
- header = (struct acpi_table_header *)
- __acpi_map_table(sdt.entry[i].pa,
- sizeof(struct acpi_table_header));
- if (!header)
- continue;
- if (!strncmp((char *) &header->signature, "OEM1", 4)) {
- if (!strncmp((char *) &header->oem_id, "UNISYS", 6)) {
- void *addr;
- struct oem_table *t;
- acpi_table_print(header, sdt.entry[i].pa);
- t = (struct oem_table *) __acpi_map_table(sdt.entry[i].pa, header->length);
- addr = (void *) __acpi_map_table(t->OEMTableAddr, t->OEMTableSize);
- *length = header->length;
- *oem_addr = (unsigned long) addr;
- return 0;
- }
- }
- }
- printk("ES7000: did not find Unisys ACPI OEM table!\n");
- return -1;
-}
-
-static void
-es7000_spin(int n)
-{
- int i = 0;
-
- while (i++ < n)
- rep_nop();
-}
-
-static int __init
-es7000_mip_write(struct mip_reg *mip_reg)
-{
- int status = 0;
- int spin;
-
- spin = MIP_SPIN;
- while (((unsigned long long)host_reg->off_38 &
- (unsigned long long)MIP_VALID) != 0) {
- if (--spin <= 0) {
- printk("es7000_mip_write: Timeout waiting for Host Valid Flag");
- return -1;
- }
- es7000_spin(MIP_SPIN);
- }
-
- memcpy(host_reg, mip_reg, sizeof(struct mip_reg));
- outb(1, mip_port);
-
- spin = MIP_SPIN;
-
- while (((unsigned long long)mip_reg->off_38 &
- (unsigned long long)MIP_VALID) == 0) {
- if (--spin <= 0) {
- printk("es7000_mip_write: Timeout waiting for MIP Valid Flag");
- return -1;
- }
- es7000_spin(MIP_SPIN);
- }
-
- status = ((unsigned long long)mip_reg->off_0 &
- (unsigned long long)0xffff0000000000) >> 48;
- mip_reg->off_38 = ((unsigned long long)mip_reg->off_38 &
- (unsigned long long)~MIP_VALID);
- return status;
-}
-
-int
-es7000_start_cpu(int cpu, unsigned long eip)
-{
- unsigned long vect = 0, psaival = 0;
-
- if (psai == NULL)
- return -1;
-
- vect = ((unsigned long)__pa(eip)/0x1000) << 16;
- psaival = (0x1000000 | vect | cpu);
-
- while (*psai & 0x1000000)
- ;
-
- *psai = psaival;
-
- return 0;
-
-}
-
-int
-es7000_stop_cpu(int cpu)
-{
- int startup;
-
- if (psai == NULL)
- return -1;
-
- startup= (0x1000000 | cpu);
-
- while ((*psai & 0xff00ffff) != startup)
- ;
-
- startup = (*psai & 0xff0000) >> 16;
- *psai &= 0xffffff;
-
- return 0;
-
-}
-
-void __init
-es7000_sw_apic()
-{
- if (es7000_plat) {
- int mip_status;
- struct mip_reg es7000_mip_reg;
-
- printk("ES7000: Enabling APIC mode.\n");
- memset(&es7000_mip_reg, 0, sizeof(struct mip_reg));
- es7000_mip_reg.off_0 = MIP_SW_APIC;
- es7000_mip_reg.off_38 = (MIP_VALID);
- while ((mip_status = es7000_mip_write(&es7000_mip_reg)) != 0)
- printk("es7000_sw_apic: command failed, status = %x\n",
- mip_status);
- return;
- }
-}
+++ /dev/null
-/*
- * Machine specific setup for es7000
- */
-
-#include <linux/config.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <asm/acpi.h>
-#include <asm/arch_hooks.h>
-
-/**
- * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
- *
- * Description:
- * Perform any necessary interrupt initialisation prior to setting up
- * the "ordinary" interrupt call gates. For legacy reasons, the ISA
- * interrupts should be initialised here if the machine emulates a PC
- * in any way.
- **/void __init pre_intr_init_hook(void)
-{
- init_ISA_irqs();
-}
-
-/*
- * IRQ2 is cascade interrupt to second interrupt controller
- */
-static struct irqaction irq2 = { no_action, 0, 0, "cascade", NULL, NULL};
-
-/**
- * intr_init_hook - post gate setup interrupt initialisation
- *
- * Description:
- * Fill in any interrupts that may have been left out by the general
- * init_IRQ() routine. interrupts having to do with the machine rather
- * than the devices on the I/O bus (like APIC interrupts in intel MP
- * systems) are started here.
- **/
-void __init intr_init_hook(void)
-{
-#ifdef CONFIG_X86_LOCAL_APIC
- apic_intr_init();
-#endif
-
- if (!acpi_ioapic)
- setup_irq(2, &irq2);
-}
-
-/**
- * pre_setup_arch_hook - hook called prior to any setup_arch() execution
- *
- * Description:
- * generally used to activate any machine specific identification
- * routines that may be needed before setup_arch() runs. On VISWS
- * this is used to get the board revision and type.
- **/
-void __init pre_setup_arch_hook(void)
-{
-}
-
-/**
- * trap_init_hook - initialise system specific traps
- *
- * Description:
- * Called as the final act of trap_init(). Used in VISWS to initialise
- * the various board specific APIC traps.
- **/
-void __init trap_init_hook(void)
-{
-}
-
-static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, 0, "timer", NULL, NULL};
-
-/**
- * time_init_hook - do any specific initialisations for the system timer.
- *
- * Description:
- * Must plug the system timer interrupt source at HZ into the IRQ listed
- * in irq_vectors.h:TIMER_IRQ
- **/
-void __init time_init_hook(void)
-{
- setup_irq(0, &irq0);
-}
-
-#ifdef CONFIG_MCA
-/**
- * mca_nmi_hook - hook into MCA specific NMI chain
- *
- * Description:
- * The MCA (Microchannel Arcitecture) has an NMI chain for NMI sources
- * along the MCA bus. Use this to hook into that chain if you will need
- * it.
- **/
-void __init mca_nmi_hook(void)
-{
- /* If I recall correctly, there's a whole bunch of other things that
- * we can do to check for NMI problems, but that's all I know about
- * at the moment.
- */
-
- printk("NMI generated from unknown source!\n");
-}
-
-#endif
+++ /dev/null
-/*
- * arch/i386/mach-generic/topology.c - Populate driverfs with topology information
- *
- * Written by: Matthew Dobson, IBM Corporation
- * Original Code: Paul Dorwin, IBM Corporation, Patrick Mochel, OSDL
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <colpatch@us.ibm.com>
- */
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <asm/cpu.h>
-
-struct i386_cpu cpu_devices[NR_CPUS];
-
-#ifdef CONFIG_NUMA
-#include <linux/mmzone.h>
-#include <asm/node.h>
-
-struct i386_node node_devices[MAX_NUMNODES];
-
-static int __init topology_init(void)
-{
- int i;
-
- for (i = 0; i < num_online_nodes(); i++)
- arch_register_node(i);
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_possible(i)) arch_register_cpu(i);
- return 0;
-}
-
-#else /* !CONFIG_NUMA */
-
-static int __init topology_init(void)
-{
- int i;
-
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_possible(i)) arch_register_cpu(i);
- return 0;
-}
-
-#endif /* CONFIG_NUMA */
-
-subsys_initcall(topology_init);
+++ /dev/null
-/*
- * This file contains the HP SKI Simulator PMU register description tables
- * and pmc checkers used by perfmon.c.
- *
- * Copyright (C) 2002-2003 Hewlett Packard Co
- * Stephane Eranian <eranian@hpl.hp.com>
- *
- * File mostly contributed by Ian Wienand <ianw@gelato.unsw.edu.au>
- *
- * This file is included as a dummy template so the kernel does not
- * try to initalize registers the simulator can't handle.
- *
- * Note the simulator does not (currently) implement these registers, i.e.,
- * they do not count anything. But you can read/write them.
- */
-
-#define RDEP(x) (1UL<<(x))
-
-#ifndef CONFIG_IA64_HP_SIM
-#error "This file should only be included for the HP Simulator"
-#endif
-
-static pfm_reg_desc_t pfm_hpsim_pmc_desc[PMU_MAX_PMCS]={
-/* pmc0 */ { PFM_REG_CONTROL , 0, 0x1UL, -1UL, NULL, NULL, {0UL, 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc1 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL, 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc2 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL, 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc3 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL, 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc4 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(4), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc5 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(5), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc6 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(6), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc7 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(7), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc8 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(8), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc9 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(9), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc10 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(10), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc11 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(11), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc12 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(12), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc13 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(13), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc14 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(14), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc15 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {RDEP(15), 0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
- { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
-};
-
-static pfm_reg_desc_t pfm_hpsim_pmd_desc[PMU_MAX_PMDS]={
-/* pmd0 */ { PFM_REG_BUFFER, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmd1 */ { PFM_REG_BUFFER, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmd2 */ { PFM_REG_BUFFER, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmd3 */ { PFM_REG_BUFFER, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmd4 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(4),0UL, 0UL, 0UL}},
-/* pmd5 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(5),0UL, 0UL, 0UL}},
-/* pmd6 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(6),0UL, 0UL, 0UL}},
-/* pmd7 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(7),0UL, 0UL, 0UL}},
-/* pmd8 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(8),0UL, 0UL, 0UL}},
-/* pmd9 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(9),0UL, 0UL, 0UL}},
-/* pmd10 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}},
-/* pmd11 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(11),0UL, 0UL, 0UL}},
-/* pmd12 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(12),0UL, 0UL, 0UL}},
-/* pmd13 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(13),0UL, 0UL, 0UL}},
-/* pmd14 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(14),0UL, 0UL, 0UL}},
-/* pmd15 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(15),0UL, 0UL, 0UL}},
- { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
-};
-
-/*
- * impl_pmcs, impl_pmds are computed at runtime to minimize errors!
- */
-static pmu_config_t pmu_conf={
- .pmu_name = "hpsim",
- .pmu_family = 0x7, /* ski emulator reports as Itanium */
- .enabled = 0,
- .ovfl_val = (1UL << 32) - 1,
- .num_ibrs = 0, /* does not use */
- .num_dbrs = 0, /* does not use */
- .pmd_desc = pfm_hpsim_pmd_desc,
- .pmc_desc = pfm_hpsim_pmc_desc
-};
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_MIPS=y
-CONFIG_MIPS64=y
-CONFIG_64BIT=y
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
-CONFIG_STANDALONE=y
-CONFIG_BROKEN_ON_SMP=y
-
-#
-# General setup
-#
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-# CONFIG_POSIX_MQUEUE is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-# CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_EMBEDDED=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-
-#
-# Loadable module support
-#
-# CONFIG_MODULES is not set
-
-#
-# Machine selection
-#
-# CONFIG_MACH_JAZZ is not set
-# CONFIG_MACH_VR41XX is not set
-# CONFIG_MIPS_COBALT is not set
-# CONFIG_MACH_DECSTATION is not set
-# CONFIG_MIPS_EV64120 is not set
-# CONFIG_MIPS_EV96100 is not set
-# CONFIG_MIPS_IVR is not set
-# CONFIG_LASAT is not set
-# CONFIG_MIPS_ITE8172 is not set
-# CONFIG_MIPS_ATLAS is not set
-# CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
-# CONFIG_MOMENCO_OCELOT is not set
-CONFIG_MOMENCO_OCELOT_G=y
-# CONFIG_MOMENCO_OCELOT_C is not set
-# CONFIG_MOMENCO_JAGUAR_ATX is not set
-# CONFIG_PMC_YOSEMITE is not set
-# CONFIG_DDB5074 is not set
-# CONFIG_DDB5476 is not set
-# CONFIG_DDB5477 is not set
-# CONFIG_NEC_OSPREY is not set
-# CONFIG_SGI_IP22 is not set
-# CONFIG_SGI_IP27 is not set
-# CONFIG_SGI_IP32 is not set
-# CONFIG_SIBYTE_SB1xxx_SOC is not set
-# CONFIG_SNI_RM200_PCI is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_HAVE_DEC_LOCK=y
-CONFIG_DMA_NONCOHERENT=y
-# CONFIG_CPU_LITTLE_ENDIAN is not set
-CONFIG_IRQ_CPU=y
-CONFIG_IRQ_CPU_RM7K=y
-CONFIG_PCI_MARVELL=y
-CONFIG_SWAP_IO_SPACE=y
-# CONFIG_SYSCLK_75 is not set
-# CONFIG_SYSCLK_83 is not set
-CONFIG_SYSCLK_100=y
-CONFIG_MIPS_L1_CACHE_SHIFT=5
-# CONFIG_FB is not set
-
-#
-# CPU selection
-#
-# CONFIG_CPU_MIPS32 is not set
-# CONFIG_CPU_MIPS64 is not set
-# CONFIG_CPU_R3000 is not set
-# CONFIG_CPU_TX39XX is not set
-# CONFIG_CPU_VR41XX is not set
-# CONFIG_CPU_R4300 is not set
-# CONFIG_CPU_R4X00 is not set
-# CONFIG_CPU_TX49XX is not set
-# CONFIG_CPU_R5000 is not set
-# CONFIG_CPU_R5432 is not set
-# CONFIG_CPU_R6000 is not set
-# CONFIG_CPU_NEVADA is not set
-# CONFIG_CPU_R8000 is not set
-# CONFIG_CPU_R10000 is not set
-CONFIG_CPU_RM7000=y
-# CONFIG_CPU_RM9000 is not set
-# CONFIG_CPU_SB1 is not set
-CONFIG_PAGE_SIZE_4KB=y
-# CONFIG_PAGE_SIZE_8KB is not set
-# CONFIG_PAGE_SIZE_16KB is not set
-# CONFIG_PAGE_SIZE_64KB is not set
-CONFIG_BOARD_SCACHE=y
-CONFIG_RM7000_CPU_SCACHE=y
-CONFIG_CPU_HAS_PREFETCH=y
-CONFIG_CPU_HAS_LLSC=y
-CONFIG_CPU_HAS_LLDSCD=y
-CONFIG_CPU_HAS_SYNC=y
-# CONFIG_PREEMPT is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-
-#
-# Bus options (PCI, PCMCIA, EISA, ISA, TC)
-#
-CONFIG_HW_HAS_PCI=y
-CONFIG_PCI=y
-CONFIG_PCI_LEGACY_PROC=y
-CONFIG_PCI_NAMES=y
-CONFIG_MMU=y
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-CONFIG_MIPS32_COMPAT=y
-CONFIG_COMPAT=y
-CONFIG_MIPS32_O32=y
-CONFIG_MIPS32_N32=y
-CONFIG_BINFMT_ELF32=y
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-# CONFIG_BLK_DEV_RAM is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Networking support
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-# CONFIG_PACKET is not set
-CONFIG_NETLINK_DEV=y
-CONFIG_UNIX=y
-CONFIG_NET_KEY=y
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_IPV6 is not set
-# CONFIG_NETFILTER is not set
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_FASTROUTE is not set
-# CONFIG_NET_HW_FLOWCONTROL is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-# CONFIG_NET_CLS_ROUTE is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-# CONFIG_ETHERTAP is not set
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-CONFIG_GALILEO_64240_ETH=y
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_NET_VENDOR_3COM is not set
-
-#
-# Tulip family network device support
-#
-# CONFIG_NET_TULIP is not set
-# CONFIG_HP100 is not set
-# CONFIG_NET_PCI is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_TIGON3 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_CT82C710 is not set
-# CONFIG_SERIO_PCIPS2 is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=4
-# CONFIG_SERIAL_8250_EXTENDED is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_QIC02_TAPE is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# Misc devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-
-#
-# Console display driver support
-#
-# CONFIG_VGA_CONSOLE is not set
-# CONFIG_MDA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB is not set
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_FAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-CONFIG_DEVPTS_FS_XATTR=y
-CONFIG_DEVPTS_FS_SECURITY=y
-# CONFIG_TMPFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-# CONFIG_NFS_V3 is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-CONFIG_NFSD=y
-# CONFIG_NFSD_V3 is not set
-# CONFIG_NFSD_TCP is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_EXPORTFS=y
-CONFIG_SUNRPC=y
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Kernel hacking
-#
-CONFIG_CROSSCOMPILE=y
-CONFIG_CMDLINE=""
-# CONFIG_DEBUG_KERNEL is not set
-
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_CRC16=y
-# CONFIG_CRC32 is not set
-# CONFIG_LIBCRC32C is not set
+++ /dev/null
-#include <linux/module.h>
-#include <linux/spinlock.h>
-
-static LIST_HEAD(dbe_list);
-static spinlock_t dbe_lock = SPIN_LOCK_UNLOCKED;
-
-/* Given an address, look for it in the module exception tables. */
-const struct exception_table_entry *search_module_dbetables(unsigned long addr)
-{
- unsigned long flags;
- const struct exception_table_entry *e = NULL;
- struct mod_arch_specific *dbe;
-
- spin_lock_irqsave(&dbe_lock, flags);
- list_for_each_entry(dbe, &dbe_list, dbe_list) {
- e = search_extable(dbe->dbe_start, dbe->dbe_end - 1, addr);
- if (e)
- break;
- }
- spin_unlock_irqrestore(&dbe_lock, flags);
-
- /* Now, if we found one, we are running inside it now, hence
- we cannot unload the module, hence no refcnt needed. */
- return e;
-}
-
-/* Put in dbe list if neccessary. */
-int module_finalize(const Elf_Ehdr *hdr,
- const Elf_Shdr *sechdrs,
- struct module *me)
-{
- const Elf_Shdr *s;
- char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
-
- INIT_LIST_HEAD(&me->arch.dbe_list);
- for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) {
- if (strcmp("__dbe_table", secstrings + s->sh_name) != 0)
- continue;
- me->arch.dbe_start = (void *)s->sh_addr;
- me->arch.dbe_end = (void *)s->sh_addr + s->sh_size;
- spin_lock_irq(&dbe_lock);
- list_add(&me->arch.dbe_list, &dbe_list);
- spin_unlock_irq(&dbe_lock);
- }
- return 0;
-}
-
-void module_arch_cleanup(struct module *mod)
-{
- spin_lock_irq(&dbe_lock);
- list_del(&mod->arch.dbe_list);
- spin_unlock_irq(&dbe_lock);
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle ralf@gnu.org
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2002 MIPS Technologies, Inc. All rights reserved.
- */
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-
-#include <asm/cpu.h>
-#include <asm/bootinfo.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-
-extern void except_vec0_generic(void);
-extern void except_vec1_r8k(void);
-
-#define TFP_TLB_SIZE 384
-#define TFP_TLB_SET_SHIFT 7
-
-/* CP0 hazard avoidance. */
-#define BARRIER __asm__ __volatile__(".set noreorder\n\t" \
- "nop; nop; nop; nop; nop; nop;\n\t" \
- ".set reorder\n\t")
-
-void local_flush_tlb_all(void)
-{
- unsigned long flags;
- unsigned long old_ctx;
- int entry;
-
- local_irq_save(flags);
- /* Save old context and create impossible VPN2 value */
- old_ctx = read_c0_entryhi();
- write_c0_entrylo(0);
-
- for (entry = 0; entry < TFP_TLB_SIZE; entry++) {
- write_c0_tlbset(entry >> TFP_TLB_SET_SHIFT);
- write_c0_vaddr(entry << PAGE_SHIFT);
- write_c0_entryhi(CKSEG0 + (entry << (PAGE_SHIFT + 1)));
- mtc0_tlbw_hazard();
- tlb_write();
- }
- tlbw_use_hazard();
- write_c0_entryhi(old_ctx);
- local_irq_restore(flags);
-}
-
-void local_flush_tlb_mm(struct mm_struct *mm)
-{
- int cpu = smp_processor_id();
-
- if (cpu_context(cpu, mm) != 0)
- drop_mmu_context(mm,cpu);
-}
-
-void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end)
-{
- struct mm_struct *mm = vma->vm_mm;
- int cpu = smp_processor_id();
- unsigned long flags;
- int oldpid, newpid, size;
-
- if (!cpu_context(cpu, mm))
- return;
-
- size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
- size = (size + 1) >> 1;
-
- local_irq_save(flags);
-
- if (size > TFP_TLB_SIZE / 2) {
- drop_mmu_context(mm, cpu);
- goto out_restore;
- }
-
- oldpid = read_c0_entryhi();
- newpid = cpu_asid(cpu, mm);
-
- write_c0_entrylo(0);
-
- start &= PAGE_MASK;
- end += (PAGE_SIZE - 1);
- end &= PAGE_MASK;
- while (start < end) {
- signed long idx;
-
- write_c0_vaddr(start);
- write_c0_entryhi(start);
- start += PAGE_SIZE;
- tlb_probe();
- idx = read_c0_tlbset();
- if (idx < 0)
- continue;
-
- write_c0_entryhi(CKSEG0 + (idx << (PAGE_SHIFT + 1)));
- tlb_write();
- }
- write_c0_entryhi(oldpid);
-
-out_restore:
- local_irq_restore(flags);
-}
-
-/* Usable for KV1 addresses only! */
-void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
- unsigned long flags;
- int size;
-
- size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
- size = (size + 1) >> 1;
-
- if (size > TFP_TLB_SIZE / 2) {
- local_flush_tlb_all();
- return;
- }
-
- local_irq_save(flags);
-
- write_c0_entrylo(0);
-
- start &= PAGE_MASK;
- end += (PAGE_SIZE - 1);
- end &= PAGE_MASK;
- while (start < end) {
- signed long idx;
-
- write_c0_vaddr(start);
- write_c0_entryhi(start);
- start += PAGE_SIZE;
- tlb_probe();
- idx = read_c0_tlbset();
- if (idx < 0)
- continue;
-
- write_c0_entryhi(CKSEG0 + (idx << (PAGE_SHIFT + 1)));
- tlb_write();
- }
-
- local_irq_restore(flags);
-}
-
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
- int cpu = smp_processor_id();
- unsigned long flags;
- int oldpid, newpid;
- signed long idx;
-
- if (!cpu_context(cpu, vma->vm_mm))
- return;
-
- newpid = cpu_asid(cpu, vma->vm_mm);
- page &= PAGE_MASK;
- local_irq_save(flags);
- oldpid = read_c0_entryhi();
- write_c0_vaddr(page);
- write_c0_entryhi(newpid);
- tlb_probe();
- idx = read_c0_tlbset();
- if (idx < 0)
- goto finish;
-
- write_c0_entrylo(0);
- write_c0_entryhi(CKSEG0 + (idx << (PAGE_SHIFT + 1)));
- tlb_write();
-
-finish:
- write_c0_entryhi(oldpid);
- local_irq_restore(flags);
-}
-
-/*
- * We will need multiple versions of update_mmu_cache(), one that just
- * updates the TLB with the new pte(s), and another which also checks
- * for the R4k "end of page" hardware bug and does the needy.
- */
-void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
-{
- unsigned long flags;
- pgd_t *pgdp;
- pmd_t *pmdp;
- pte_t *ptep;
- int pid;
-
- /*
- * Handle debugger faulting in for debugee.
- */
- if (current->active_mm != vma->vm_mm)
- return;
-
- pid = read_c0_entryhi() & ASID_MASK;
-
- local_irq_save(flags);
- address &= PAGE_MASK;
- write_c0_vaddr(address);
- write_c0_entryhi(pid);
- pgdp = pgd_offset(vma->vm_mm, address);
- pmdp = pmd_offset(pgdp, address);
- ptep = pte_offset_map(pmdp, address);
- tlb_probe();
-
- write_c0_entrylo(pte_val(*ptep++) >> 6);
- tlb_write();
-
- write_c0_entryhi(pid);
- local_irq_restore(flags);
-}
-
-static void __init probe_tlb(unsigned long config)
-{
- struct cpuinfo_mips *c = ¤t_cpu_data;
-
- c->tlbsize = 3 * 128; /* 3 sets each 128 entries */
-}
-
-void __init tlb_init(void)
-{
- unsigned int config = read_c0_config();
- unsigned long status;
-
- probe_tlb(config);
-
- status = read_c0_status();
- status &= ~(ST0_UPS | ST0_KPS);
-#ifdef CONFIG_PAGE_SIZE_4KB
- status |= (TFP_PAGESIZE_4K << 32) | (TFP_PAGESIZE_4K << 36);
-#elif defined(CONFIG_PAGE_SIZE_8KB)
- status |= (TFP_PAGESIZE_8K << 32) | (TFP_PAGESIZE_8K << 36);
-#elif defined(CONFIG_PAGE_SIZE_16KB)
- status |= (TFP_PAGESIZE_16K << 32) | (TFP_PAGESIZE_16K << 36);
-#elif defined(CONFIG_PAGE_SIZE_64KB)
- status |= (TFP_PAGESIZE_64K << 32) | (TFP_PAGESIZE_64K << 36);
-#endif
- write_c0_status(status);
-
- write_c0_wired(0);
-
- local_flush_tlb_all();
-
- memcpy((void *)(CKSEG0 + 0x00), &except_vec0_generic, 0x80);
- memcpy((void *)(CKSEG0 + 0x80), except_vec1_r8k, 0x80);
- flush_icache_range(CKSEG0 + 0x80, CKSEG0 + 0x100);
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1999 Ralf Baechle
- * Copyright (C) 1999 Silicon Graphics, Inc.
- */
-#include <linux/init.h>
-#include <asm/mipsregs.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-
- .macro __BUILD_cli
- CLI
- .endm
-
- .macro __BUILD_sti
- STI
- .endm
-
- .macro __BUILD_kmode
- KMODE
- .endm
-
- .macro tlb_handler name interruptible writebit
- NESTED(__\name, PT_SIZE, sp)
- SAVE_ALL
- dmfc0 a2, CP0_BADVADDR
- __BUILD_\interruptible
- li a1, \writebit
- sd a2, PT_BVADDR(sp)
- move a0, sp
- jal do_page_fault
- j ret_from_exception
- END(__\name)
- .endm
-
- tlb_handler xtlb_mod kmode 1
- tlb_handler xtlb_tlbl kmode 0
- tlb_handler xtlb_tlbs kmode 1
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1999 Ralf Baechle
- * Copyright (C) 1999 Silicon Graphics, Inc.
- */
-#include <linux/init.h>
-#include <asm/mipsregs.h>
-#include <asm/page.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-#include <asm/war.h>
-
- .macro __BUILD_cli
- CLI
- .endm
-
- .macro __BUILD_sti
- STI
- .endm
-
- .macro __BUILD_kmode
- KMODE
- .endm
-
- .macro tlb_handler name interruptible writebit
- NESTED(__\name, PT_SIZE, sp)
- SAVE_ALL
- dmfc0 a2, CP0_BADVADDR
- __BUILD_\interruptible
- li a1, \writebit
- sd a2, PT_BVADDR(sp)
- move a0, sp
- jal do_page_fault
- j ret_from_exception
- END(__\name)
- .endm
-
- .macro tlb_handler_m3 name interruptible writebit
- NESTED(__\name, PT_SIZE, sp)
- dmfc0 k0, CP0_BADVADDR
- dmfc0 k1, CP0_ENTRYHI
- xor k0, k1
- dsrl k0, k0, PAGE_SHIFT + 1
- bnez k0, 1f
- SAVE_ALL
- dmfc0 a2, CP0_BADVADDR
- __BUILD_\interruptible
- li a1, \writebit
- sd a2, PT_BVADDR(sp)
- move a0, sp
- jal do_page_fault
-1:
- j ret_from_exception
- END(__\name)
- .endm
-
- tlb_handler xtlb_mod kmode 1
-#if BCM1250_M3_WAR
- tlb_handler_m3 xtlb_tlbl kmode 0
-#else
- tlb_handler xtlb_tlbl kmode 0
-#endif
- tlb_handler xtlb_tlbs kmode 1
+++ /dev/null
-/*
- * TLB exception handling code for R2000/R3000.
- *
- * Copyright (C) 1994, 1995, 1996 by Ralf Baechle and Andreas Busse
- *
- * Multi-CPU abstraction reworking:
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- *
- * Further modifications to make this work:
- * Copyright (c) 1998 Harald Koerfgen
- * Copyright (c) 1998, 1999 Gleb Raiko & Vladimir Roganov
- * Copyright (c) 2001 Ralf Baechle
- * Copyright (c) 2001 MIPS Technologies, Inc.
- */
-#include <linux/init.h>
-#include <asm/asm.h>
-#include <asm/cachectl.h>
-#include <asm/fpregdef.h>
-#include <asm/mipsregs.h>
-#include <asm/page.h>
-#include <asm/pgtable-bits.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-
-#define TLB_OPTIMIZE /* If you are paranoid, disable this. */
-
- .text
- .set mips1
- .set noreorder
-
- __INIT
-
- /* TLB refill, R[23]00 version */
- LEAF(except_vec0_r2300)
- .set noat
- .set mips1
- mfc0 k0, CP0_BADVADDR
- lw k1, pgd_current # get pgd pointer
- srl k0, k0, 22
- sll k0, k0, 2
- addu k1, k1, k0
- mfc0 k0, CP0_CONTEXT
- lw k1, (k1)
- and k0, k0, 0xffc
- addu k1, k1, k0
- lw k0, (k1)
- nop
- mtc0 k0, CP0_ENTRYLO0
- mfc0 k1, CP0_EPC
- tlbwr
- jr k1
- rfe
- END(except_vec0_r2300)
-
- __FINIT
-
- /* ABUSE of CPP macros 101. */
-
- /* After this macro runs, the pte faulted on is
- * in register PTE, a ptr into the table in which
- * the pte belongs is in PTR.
- */
-#define LOAD_PTE(pte, ptr) \
- mfc0 pte, CP0_BADVADDR; \
- lw ptr, pgd_current; \
- srl pte, pte, 22; \
- sll pte, pte, 2; \
- addu ptr, ptr, pte; \
- mfc0 pte, CP0_CONTEXT; \
- lw ptr, (ptr); \
- andi pte, pte, 0xffc; \
- addu ptr, ptr, pte; \
- lw pte, (ptr); \
- nop;
-
- /* This places the even/odd pte pair in the page
- * table at PTR into ENTRYLO0 and ENTRYLO1 using
- * TMP as a scratch register.
- */
-#define PTE_RELOAD(ptr) \
- lw ptr, (ptr) ; \
- nop ; \
- mtc0 ptr, CP0_ENTRYLO0; \
- nop;
-
-#define DO_FAULT(write) \
- .set noat; \
- .set macro; \
- SAVE_ALL; \
- mfc0 a2, CP0_BADVADDR; \
- KMODE; \
- .set at; \
- move a0, sp; \
- jal do_page_fault; \
- li a1, write; \
- j ret_from_exception; \
- nop; \
- .set noat; \
- .set nomacro;
-
- /* Check is PTE is present, if not then jump to LABEL.
- * PTR points to the page table where this PTE is located,
- * when the macro is done executing PTE will be restored
- * with it's original value.
- */
-#define PTE_PRESENT(pte, ptr, label) \
- andi pte, pte, (_PAGE_PRESENT | _PAGE_READ); \
- xori pte, pte, (_PAGE_PRESENT | _PAGE_READ); \
- bnez pte, label; \
- .set push; \
- .set reorder; \
- lw pte, (ptr); \
- .set pop;
-
- /* Make PTE valid, store result in PTR. */
-#define PTE_MAKEVALID(pte, ptr) \
- ori pte, pte, (_PAGE_VALID | _PAGE_ACCESSED); \
- sw pte, (ptr);
-
- /* Check if PTE can be written to, if not branch to LABEL.
- * Regardless restore PTE with value from PTR when done.
- */
-#define PTE_WRITABLE(pte, ptr, label) \
- andi pte, pte, (_PAGE_PRESENT | _PAGE_WRITE); \
- xori pte, pte, (_PAGE_PRESENT | _PAGE_WRITE); \
- bnez pte, label; \
- .set push; \
- .set reorder; \
- lw pte, (ptr); \
- .set pop;
-
-
- /* Make PTE writable, update software status bits as well,
- * then store at PTR.
- */
-#define PTE_MAKEWRITE(pte, ptr) \
- ori pte, pte, (_PAGE_ACCESSED | _PAGE_MODIFIED | \
- _PAGE_VALID | _PAGE_DIRTY); \
- sw pte, (ptr);
-
-/*
- * The index register may have the probe fail bit set,
- * because we would trap on access kseg2, i.e. without refill.
- */
-#define TLB_WRITE(reg) \
- mfc0 reg, CP0_INDEX; \
- nop; \
- bltz reg, 1f; \
- nop; \
- tlbwi; \
- j 2f; \
- nop; \
-1: tlbwr; \
-2:
-
-#define RET(reg) \
- mfc0 reg, CP0_EPC; \
- nop; \
- jr reg; \
- rfe
-
- .set noreorder
-
- .align 5
-NESTED(handle_tlbl, PT_SIZE, sp)
- .set noat
-
-#ifdef TLB_OPTIMIZE
- /* Test present bit in entry. */
- LOAD_PTE(k0, k1)
- tlbp
- PTE_PRESENT(k0, k1, nopage_tlbl)
- PTE_MAKEVALID(k0, k1)
- PTE_RELOAD(k1)
- TLB_WRITE(k0)
- RET(k0)
-nopage_tlbl:
-#endif
-
- DO_FAULT(0)
-END(handle_tlbl)
-
-NESTED(handle_tlbs, PT_SIZE, sp)
- .set noat
-
-#ifdef TLB_OPTIMIZE
- LOAD_PTE(k0, k1)
- tlbp # find faulting entry
- PTE_WRITABLE(k0, k1, nopage_tlbs)
- PTE_MAKEWRITE(k0, k1)
- PTE_RELOAD(k1)
- TLB_WRITE(k0)
- RET(k0)
-nopage_tlbs:
-#endif
-
- DO_FAULT(1)
-END(handle_tlbs)
-
- .align 5
-NESTED(handle_mod, PT_SIZE, sp)
- .set noat
-#ifdef TLB_OPTIMIZE
- LOAD_PTE(k0, k1)
- tlbp # find faulting entry
- andi k0, k0, _PAGE_WRITE
- beqz k0, nowrite_mod
- .set push
- .set reorder
- lw k0, (k1)
- .set pop
-
- /* Present and writable bits set, set accessed and dirty bits. */
- PTE_MAKEWRITE(k0, k1)
-
- /* Now reload the entry into the tlb. */
- PTE_RELOAD(k1)
- tlbwi
- RET(k0)
-#endif
-
-nowrite_mod:
- DO_FAULT(1)
-END(handle_mod)
+++ /dev/null
-/*
- * TLB exception handling code for r4k.
- *
- * Copyright (C) 1994, 1995, 1996 by Ralf Baechle and Andreas Busse
- *
- * Multi-cpu abstraction and reworking:
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- *
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
- */
-#include <linux/init.h>
-#include <linux/config.h>
-
-#include <asm/asm.h>
-#include <asm/offset.h>
-#include <asm/cachectl.h>
-#include <asm/fpregdef.h>
-#include <asm/mipsregs.h>
-#include <asm/page.h>
-#include <asm/pgtable-bits.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-#include <asm/war.h>
-
-#define TLB_OPTIMIZE /* If you are paranoid, disable this. */
-
-#ifdef CONFIG_64BIT_PHYS_ADDR
-#define PTE_L ld
-#define PTE_S sd
-#define PTE_SRL dsrl
-#define P_MTC0 dmtc0
-#define PTE_SIZE 8
-#define PTEP_INDX_MSK 0xff0
-#define PTE_INDX_MSK 0xff8
-#define PTE_INDX_SHIFT 9
-#else
-#define PTE_L lw
-#define PTE_S sw
-#define PTE_SRL srl
-#define P_MTC0 mtc0
-#define PTE_SIZE 4
-#define PTEP_INDX_MSK 0xff8
-#define PTE_INDX_MSK 0xffc
-#define PTE_INDX_SHIFT 10
-#endif
-
-/*
- * ABUSE of CPP macros 101.
- *
- * After this macro runs, the pte faulted on is
- * in register PTE, a ptr into the table in which
- * the pte belongs is in PTR.
- */
-
-#ifdef CONFIG_SMP
-#define GET_PGD(scratch, ptr) \
- mfc0 ptr, CP0_CONTEXT; \
- la scratch, pgd_current;\
- srl ptr, 23; \
- sll ptr, 2; \
- addu ptr, scratch, ptr; \
- lw ptr, (ptr);
-#else
-#define GET_PGD(scratch, ptr) \
- lw ptr, pgd_current;
-#endif
-
-#define LOAD_PTE(pte, ptr) \
- GET_PGD(pte, ptr) \
- mfc0 pte, CP0_BADVADDR; \
- srl pte, pte, _PGDIR_SHIFT; \
- sll pte, pte, 2; \
- addu ptr, ptr, pte; \
- mfc0 pte, CP0_BADVADDR; \
- lw ptr, (ptr); \
- srl pte, pte, PTE_INDX_SHIFT; \
- and pte, pte, PTE_INDX_MSK; \
- addu ptr, ptr, pte; \
- PTE_L pte, (ptr);
-
- /* This places the even/odd pte pair in the page
- * table at PTR into ENTRYLO0 and ENTRYLO1 using
- * TMP as a scratch register.
- */
-#define PTE_RELOAD(ptr, tmp) \
- ori ptr, ptr, PTE_SIZE; \
- xori ptr, ptr, PTE_SIZE; \
- PTE_L tmp, PTE_SIZE(ptr); \
- PTE_L ptr, 0(ptr); \
- PTE_SRL tmp, tmp, 6; \
- P_MTC0 tmp, CP0_ENTRYLO1; \
- PTE_SRL ptr, ptr, 6; \
- P_MTC0 ptr, CP0_ENTRYLO0;
-
-#define DO_FAULT(write) \
- .set noat; \
- SAVE_ALL; \
- mfc0 a2, CP0_BADVADDR; \
- KMODE; \
- .set at; \
- move a0, sp; \
- jal do_page_fault; \
- li a1, write; \
- j ret_from_exception; \
- nop; \
- .set noat;
-
- /* Check is PTE is present, if not then jump to LABEL.
- * PTR points to the page table where this PTE is located,
- * when the macro is done executing PTE will be restored
- * with it's original value.
- */
-#define PTE_PRESENT(pte, ptr, label) \
- andi pte, pte, (_PAGE_PRESENT | _PAGE_READ); \
- xori pte, pte, (_PAGE_PRESENT | _PAGE_READ); \
- bnez pte, label; \
- PTE_L pte, (ptr);
-
- /* Make PTE valid, store result in PTR. */
-#define PTE_MAKEVALID(pte, ptr) \
- ori pte, pte, (_PAGE_VALID | _PAGE_ACCESSED); \
- PTE_S pte, (ptr);
-
- /* Check if PTE can be written to, if not branch to LABEL.
- * Regardless restore PTE with value from PTR when done.
- */
-#define PTE_WRITABLE(pte, ptr, label) \
- andi pte, pte, (_PAGE_PRESENT | _PAGE_WRITE); \
- xori pte, pte, (_PAGE_PRESENT | _PAGE_WRITE); \
- bnez pte, label; \
- PTE_L pte, (ptr);
-
- /* Make PTE writable, update software status bits as well,
- * then store at PTR.
- */
-#define PTE_MAKEWRITE(pte, ptr) \
- ori pte, pte, (_PAGE_ACCESSED | _PAGE_MODIFIED | \
- _PAGE_VALID | _PAGE_DIRTY); \
- PTE_S pte, (ptr);
-
- __INIT
-
-#ifdef CONFIG_64BIT_PHYS_ADDR
-#define GET_PTE_OFF(reg)
-#elif CONFIG_CPU_VR41XX
-#define GET_PTE_OFF(reg) srl reg, reg, 3
-#else
-#define GET_PTE_OFF(reg) srl reg, reg, 1
-#endif
-
-/*
- * These handlers much be written in a relocatable manner
- * because based upon the cpu type an arbitrary one of the
- * following pieces of code will be copied to the KSEG0
- * vector location.
- */
- /* TLB refill, EXL == 0, R4xx0, non-R4600 version */
- .set noreorder
- .set noat
- LEAF(except_vec0_r4000)
- .set mips3
- GET_PGD(k0, k1) # get pgd pointer
- mfc0 k0, CP0_BADVADDR # Get faulting address
- srl k0, k0, _PGDIR_SHIFT # get pgd only bits
-
- sll k0, k0, 2
- addu k1, k1, k0 # add in pgd offset
- mfc0 k0, CP0_CONTEXT # get context reg
- lw k1, (k1)
- GET_PTE_OFF(k0) # get pte offset
- and k0, k0, PTEP_INDX_MSK
- addu k1, k1, k0 # add in offset
- PTE_L k0, 0(k1) # get even pte
- PTE_L k1, PTE_SIZE(k1) # get odd pte
- PTE_SRL k0, k0, 6 # convert to entrylo0
- P_MTC0 k0, CP0_ENTRYLO0 # load it
- PTE_SRL k1, k1, 6 # convert to entrylo1
- P_MTC0 k1, CP0_ENTRYLO1 # load it
- mtc0_tlbw_hazard
- tlbwr # write random tlb entry
- tlbw_eret_hazard
- eret # return from trap
- END(except_vec0_r4000)
-
- /* TLB refill, EXL == 0, R4600 version */
- LEAF(except_vec0_r4600)
- .set mips3
- GET_PGD(k0, k1) # get pgd pointer
- mfc0 k0, CP0_BADVADDR
- srl k0, k0, _PGDIR_SHIFT
- sll k0, k0, 2 # log2(sizeof(pgd_t)
- addu k1, k1, k0
- mfc0 k0, CP0_CONTEXT
- lw k1, (k1)
- GET_PTE_OFF(k0) # get pte offset
- and k0, k0, PTEP_INDX_MSK
- addu k1, k1, k0
- PTE_L k0, 0(k1)
- PTE_L k1, PTE_SIZE(k1)
- PTE_SRL k0, k0, 6
- P_MTC0 k0, CP0_ENTRYLO0
- PTE_SRL k1, k1, 6
- P_MTC0 k1, CP0_ENTRYLO1
- nop
- tlbwr
- nop
- eret
- END(except_vec0_r4600)
-
- /* TLB refill, EXL == 0, R52x0 "Nevada" version */
- /*
- * This version has a bug workaround for the Nevada. It seems
- * as if under certain circumstances the move from cp0_context
- * might produce a bogus result when the mfc0 instruction and
- * it's consumer are in a different cacheline or a load instruction,
- * probably any memory reference, is between them. This is
- * potencially slower than the R4000 version, so we use this
- * special version.
- */
- .set noreorder
- .set noat
- LEAF(except_vec0_nevada)
- .set mips3
- mfc0 k0, CP0_BADVADDR # Get faulting address
- srl k0, k0, _PGDIR_SHIFT # get pgd only bits
- lw k1, pgd_current # get pgd pointer
- sll k0, k0, 2 # log2(sizeof(pgd_t)
- addu k1, k1, k0 # add in pgd offset
- lw k1, (k1)
- mfc0 k0, CP0_CONTEXT # get context reg
- GET_PTE_OFF(k0) # get pte offset
- and k0, k0, PTEP_INDX_MSK
- addu k1, k1, k0 # add in offset
- PTE_L k0, 0(k1) # get even pte
- PTE_L k1, PTE_SIZE(k1) # get odd pte
- PTE_SRL k0, k0, 6 # convert to entrylo0
- P_MTC0 k0, CP0_ENTRYLO0 # load it
- PTE_SRL k1, k1, 6 # convert to entrylo1
- P_MTC0 k1, CP0_ENTRYLO1 # load it
- nop # QED specified nops
- nop
- tlbwr # write random tlb entry
- nop # traditional nop
- eret # return from trap
- END(except_vec0_nevada)
-
- /* TLB refill, EXL == 0, SB1 with M3 errata handling version */
- LEAF(except_vec0_sb1)
-#if BCM1250_M3_WAR
- mfc0 k0, CP0_BADVADDR
- mfc0 k1, CP0_ENTRYHI
- xor k0, k1
- srl k0, k0, PAGE_SHIFT+1
- bnez k0, 1f
-#endif
- GET_PGD(k0, k1) # get pgd pointer
- mfc0 k0, CP0_BADVADDR # Get faulting address
- srl k0, k0, _PGDIR_SHIFT # get pgd only bits
- sll k0, k0, 2
- addu k1, k1, k0 # add in pgd offset
- mfc0 k0, CP0_CONTEXT # get context reg
- lw k1, (k1)
- GET_PTE_OFF(k0) # get pte offset
- and k0, k0, PTEP_INDX_MSK
- addu k1, k1, k0 # add in offset
- PTE_L k0, 0(k1) # get even pte
- PTE_L k1, PTE_SIZE(k1) # get odd pte
- PTE_SRL k0, k0, 6 # convert to entrylo0
- P_MTC0 k0, CP0_ENTRYLO0 # load it
- PTE_SRL k1, k1, 6 # convert to entrylo1
- P_MTC0 k1, CP0_ENTRYLO1 # load it
- tlbwr # write random tlb entry
-1: eret # return from trap
- END(except_vec0_sb1)
-
- /* TLB refill, EXL == 0, R4[40]00/R5000 badvaddr hwbug version */
- LEAF(except_vec0_r45k_bvahwbug)
- .set mips3
- GET_PGD(k0, k1) # get pgd pointer
- mfc0 k0, CP0_BADVADDR
- srl k0, k0, _PGDIR_SHIFT
- sll k0, k0, 2 # log2(sizeof(pgd_t)
- addu k1, k1, k0
- mfc0 k0, CP0_CONTEXT
- lw k1, (k1)
-#ifndef CONFIG_64BIT_PHYS_ADDR
- srl k0, k0, 1
-#endif
- and k0, k0, PTEP_INDX_MSK
- addu k1, k1, k0
- PTE_L k0, 0(k1)
- PTE_L k1, PTE_SIZE(k1)
- nop /* XXX */
- tlbp
- PTE_SRL k0, k0, 6
- P_MTC0 k0, CP0_ENTRYLO0
- PTE_SRL k1, k1, 6
- mfc0 k0, CP0_INDEX
- P_MTC0 k1, CP0_ENTRYLO1
- bltzl k0, 1f
- tlbwr
-1:
- nop
- eret
- END(except_vec0_r45k_bvahwbug)
-
-#ifdef CONFIG_SMP
- /* TLB refill, EXL == 0, R4000 MP badvaddr hwbug version */
- LEAF(except_vec0_r4k_mphwbug)
- .set mips3
- GET_PGD(k0, k1) # get pgd pointer
- mfc0 k0, CP0_BADVADDR
- srl k0, k0, _PGDIR_SHIFT
- sll k0, k0, 2 # log2(sizeof(pgd_t)
- addu k1, k1, k0
- mfc0 k0, CP0_CONTEXT
- lw k1, (k1)
-#ifndef CONFIG_64BIT_PHYS_ADDR
- srl k0, k0, 1
-#endif
- and k0, k0, PTEP_INDX_MSK
- addu k1, k1, k0
- PTE_L k0, 0(k1)
- PTE_L k1, PTE_SIZE(k1)
- nop /* XXX */
- tlbp
- PTE_SRL k0, k0, 6
- P_MTC0 k0, CP0_ENTRYLO0
- PTE_SRL k1, k1, 6
- mfc0 k0, CP0_INDEX
- P_MTC0 k1, CP0_ENTRYLO1
- bltzl k0, 1f
- tlbwr
-1:
- nop
- eret
- END(except_vec0_r4k_mphwbug)
-#endif
-
- /* TLB refill, EXL == 0, R4000 UP 250MHZ entrylo[01] hwbug version */
- LEAF(except_vec0_r4k_250MHZhwbug)
- .set mips3
- GET_PGD(k0, k1) # get pgd pointer
- mfc0 k0, CP0_BADVADDR
- srl k0, k0, _PGDIR_SHIFT
- sll k0, k0, 2 # log2(sizeof(pgd_t)
- addu k1, k1, k0
- mfc0 k0, CP0_CONTEXT
- lw k1, (k1)
-#ifndef CONFIG_64BIT_PHYS_ADDR
- srl k0, k0, 1
-#endif
- and k0, k0, PTEP_INDX_MSK
- addu k1, k1, k0
- PTE_L k0, 0(k1)
- PTE_L k1, PTE_SIZE(k1)
- PTE_SRL k0, k0, 6
- P_MTC0 zero, CP0_ENTRYLO0
- P_MTC0 k0, CP0_ENTRYLO0
- PTE_SRL k1, k1, 6
- P_MTC0 zero, CP0_ENTRYLO1
- P_MTC0 k1, CP0_ENTRYLO1
- b 1f
- tlbwr
-1:
- nop
- eret
- END(except_vec0_r4k_250MHZhwbug)
-
-#ifdef CONFIG_SMP
- /* TLB refill, EXL == 0, R4000 MP 250MHZ entrylo[01]+badvaddr bug version */
- LEAF(except_vec0_r4k_MP250MHZhwbug)
- .set mips3
- GET_PGD(k0, k1) # get pgd pointer
- mfc0 k0, CP0_BADVADDR
- srl k0, k0, _PGDIR_SHIFT
- sll k0, k0, 2 # log2(sizeof(pgd_t)
- addu k1, k1, k0
- mfc0 k0, CP0_CONTEXT
- lw k1, (k1)
-#ifndef CONFIG_64BIT_PHYS_ADDR
- srl k0, k0, 1
-#endif
- and k0, k0, PTEP_INDX_MSK
- addu k1, k1, k0
- PTE_L k0, 0(k1)
- PTE_L k1, PTE_SIZE(k1)
- nop /* XXX */
- tlbp
- PTE_SRL k0, k0, 6
- P_MTC0 zero, CP0_ENTRYLO0
- P_MTC0 k0, CP0_ENTRYLO0
- mfc0 k0, CP0_INDEX
- PTE_SRL k1, k1, 6
- P_MTC0 zero, CP0_ENTRYLO1
- P_MTC0 k1, CP0_ENTRYLO1
- bltzl k0, 1f
- tlbwr
-1:
- nop
- eret
- END(except_vec0_r4k_MP250MHZhwbug)
-#endif
-
- __FINIT
-
- .set noreorder
-
-/*
- * From the IDT errata for the QED RM5230 (Nevada), processor revision 1.0:
- * 2. A timing hazard exists for the TLBP instruction.
- *
- * stalling_instruction
- * TLBP
- *
- * The JTLB is being read for the TLBP throughout the stall generated by the
- * previous instruction. This is not really correct as the stalling instruction
- * can modify the address used to access the JTLB. The failure symptom is that
- * the TLBP instruction will use an address created for the stalling instruction
- * and not the address held in C0_ENHI and thus report the wrong results.
- *
- * The software work-around is to not allow the instruction preceding the TLBP
- * to stall - make it an NOP or some other instruction guaranteed not to stall.
- *
- * Errata 2 will not be fixed. This errata is also on the R5000.
- *
- * As if we MIPS hackers wouldn't know how to nop pipelines happy ...
- */
-#define R5K_HAZARD nop
-
- /*
- * Note for many R4k variants tlb probes cannot be executed out
- * of the instruction cache else you get bogus results.
- */
- .align 5
- NESTED(handle_tlbl, PT_SIZE, sp)
- .set noat
-#if BCM1250_M3_WAR
- mfc0 k0, CP0_BADVADDR
- mfc0 k1, CP0_ENTRYHI
- xor k0, k1
- srl k0, k0, PAGE_SHIFT+1
- beqz k0, 1f
- nop
- .set mips3
- eret
- .set mips0
-1:
-#endif
-invalid_tlbl:
-#ifdef TLB_OPTIMIZE
- .set mips3
- /* Test present bit in entry. */
- LOAD_PTE(k0, k1)
- R5K_HAZARD
- tlbp
- PTE_PRESENT(k0, k1, nopage_tlbl)
- PTE_MAKEVALID(k0, k1)
- PTE_RELOAD(k1, k0)
- mtc0_tlbw_hazard
- tlbwi
- tlbw_eret_hazard
- .set mips3
- eret
- .set mips0
-#endif
-
-nopage_tlbl:
- DO_FAULT(0)
- END(handle_tlbl)
-
- .align 5
- NESTED(handle_tlbs, PT_SIZE, sp)
- .set noat
-#ifdef TLB_OPTIMIZE
- .set mips3
- li k0,0
- LOAD_PTE(k0, k1)
- R5K_HAZARD
- tlbp # find faulting entry
- PTE_WRITABLE(k0, k1, nopage_tlbs)
- PTE_MAKEWRITE(k0, k1)
- PTE_RELOAD(k1, k0)
- mtc0_tlbw_hazard
- tlbwi
- tlbw_eret_hazard
- .set mips3
- eret
- .set mips0
-#endif
-
-nopage_tlbs:
- DO_FAULT(1)
- END(handle_tlbs)
-
- .align 5
- NESTED(handle_mod, PT_SIZE, sp)
- .set noat
-#ifdef TLB_OPTIMIZE
- .set mips3
- LOAD_PTE(k0, k1)
- R5K_HAZARD
- tlbp # find faulting entry
- andi k0, k0, _PAGE_WRITE
- beqz k0, nowrite_mod
- PTE_L k0, (k1)
-
- /* Present and writable bits set, set accessed and dirty bits. */
- PTE_MAKEWRITE(k0, k1)
-
- /* Now reload the entry into the tlb. */
- PTE_RELOAD(k1, k0)
- mtc0_tlbw_hazard
- tlbwi
- tlbw_eret_hazard
- .set mips3
- eret
- .set mips0
-#endif
-
-nowrite_mod:
- DO_FAULT(1)
- END(handle_mod)
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2000 Silicon Graphics, Inc.
- * Written by Ulf Carlsson (ulfc@engr.sgi.com)
- * Copyright (C) 2002 Maciej W. Rozycki
- */
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/threads.h>
-
-#include <asm/asm.h>
-#include <asm/hazards.h>
-#include <asm/regdef.h>
-#include <asm/mipsregs.h>
-#include <asm/stackframe.h>
-#include <asm/war.h>
-
-#define _VMALLOC_START 0xc000000000000000
-
- /*
- * After this macro runs we have a pointer to the pte of the address
- * that caused the fault in PTR.
- */
- .macro LOAD_PTE2, ptr, tmp, kaddr
-#ifdef CONFIG_SMP
- dmfc0 \ptr, CP0_CONTEXT
- dmfc0 \tmp, CP0_BADVADDR
- dsra \ptr, 23 # get pgd_current[cpu]
-#else
- dmfc0 \tmp, CP0_BADVADDR
- dla \ptr, pgd_current
-#endif
- bltz \tmp, \kaddr
- ld \ptr, (\ptr)
- dsrl \tmp, (_PGDIR_SHIFT-3) # get pgd offset in bytes
- andi \tmp, ((_PTRS_PER_PGD - 1)<<3)
- daddu \ptr, \tmp # add in pgd offset
- dmfc0 \tmp, CP0_BADVADDR
- ld \ptr, (\ptr) # get pmd pointer
- dsrl \tmp, (_PMD_SHIFT-3) # get pmd offset in bytes
- andi \tmp, ((_PTRS_PER_PMD - 1)<<3)
- daddu \ptr, \tmp # add in pmd offset
- dmfc0 \tmp, CP0_XCONTEXT
- ld \ptr, (\ptr) # get pte pointer
- andi \tmp, 0xff0 # get pte offset
- daddu \ptr, \tmp
- .endm
-
-
- /*
- * Ditto for the kernel table.
- */
- .macro LOAD_KPTE2, ptr, tmp, not_vmalloc
- /*
- * First, determine that the address is in/above vmalloc range.
- */
- dmfc0 \tmp, CP0_BADVADDR
- dli \ptr, _VMALLOC_START
-
- /*
- * Now find offset into kptbl.
- */
- dsubu \tmp, \tmp, \ptr
- dla \ptr, kptbl
- dsrl \tmp, (_PAGE_SHIFT+1) # get vpn2
- dsll \tmp, 4 # byte offset of pte
- daddu \ptr, \ptr, \tmp
-
- /*
- * Determine that fault address is within vmalloc range.
- */
- dla \tmp, ekptbl
- slt \tmp, \ptr, \tmp
- beqz \tmp, \not_vmalloc # not vmalloc
- nop
- .endm
-
-
- /*
- * This places the even/odd pte pair in the page table at the pte
- * entry pointed to by PTE into ENTRYLO0 and ENTRYLO1.
- */
- .macro PTE_RELOAD, pte0, pte1
- dsrl \pte0, 6 # convert to entrylo0
- dmtc0 \pte0, CP0_ENTRYLO0 # load it
- dsrl \pte1, 6 # convert to entrylo1
- dmtc0 \pte1, CP0_ENTRYLO1 # load it
- .endm
-
-
- .text
- .set noreorder
- .set mips3
-
- __INIT
-
- /*
- * TLB refill handlers for the R4000 and SB1.
- * Attention: We may only use 32 instructions / 128 bytes.
- */
- .align 5
-LEAF(except_vec1_r4k)
- .set noat
- dla k0, handle_vec1_r4k
- jr k0
- nop
-END(except_vec1_r4k)
-
-LEAF(except_vec1_sb1)
-#if BCM1250_M3_WAR
- dmfc0 k0, CP0_BADVADDR
- dmfc0 k1, CP0_ENTRYHI
- xor k0, k1
- dsrl k0, k0, _PAGE_SHIFT+1
- bnez k0, 1f
-#endif
- .set noat
- dla k0, handle_vec1_r4k
- jr k0
- nop
-
-1: eret
- nop
-END(except_vec1_sb1)
-
- __FINIT
-
- .align 5
-LEAF(handle_vec1_r4k)
- .set noat
- LOAD_PTE2 k1 k0 9f
- ld k0, 0(k1) # get even pte
- ld k1, 8(k1) # get odd pte
- PTE_RELOAD k0 k1
- mtc0_tlbw_hazard
- tlbwr
- tlbw_eret_hazard
- eret
-
-9: # handle the vmalloc range
- LOAD_KPTE2 k1 k0 invalid_vmalloc_address
- ld k0, 0(k1) # get even pte
- ld k1, 8(k1) # get odd pte
- PTE_RELOAD k0 k1
- mtc0_tlbw_hazard
- tlbwr
- tlbw_eret_hazard
- eret
-END(handle_vec1_r4k)
-
-
- __INIT
-
- /*
- * TLB refill handler for the R10000.
- * Attention: We may only use 32 instructions / 128 bytes.
- */
- .align 5
-LEAF(except_vec1_r10k)
- .set noat
- dla k0, handle_vec1_r10k
- jr k0
- nop
-END(except_vec1_r10k)
-
- __FINIT
-
- .align 5
-LEAF(handle_vec1_r10k)
- .set noat
- LOAD_PTE2 k1 k0 9f
- ld k0, 0(k1) # get even pte
- ld k1, 8(k1) # get odd pte
- PTE_RELOAD k0 k1
- nop
- tlbwr
- eret
-
-9: # handle the vmalloc range
- LOAD_KPTE2 k1 k0 invalid_vmalloc_address
- ld k0, 0(k1) # get even pte
- ld k1, 8(k1) # get odd pte
- PTE_RELOAD k0 k1
- nop
- tlbwr
- eret
-END(handle_vec1_r10k)
-
-
- .align 5
-LEAF(invalid_vmalloc_address)
- .set noat
- SAVE_ALL
- CLI
- dmfc0 t0, CP0_BADVADDR
- sd t0, PT_BVADDR(sp)
- move a0, sp
- jal show_regs
- PANIC("Invalid kernel address")
-END(invalid_vmalloc_address)
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Marvell MV64340 interrupt fixup code.
- *
- * Marvell wants an NDA for their docs so this was written without
- * documentation. You've been warned.
- *
- * Copyright (C) 2004 Ralf Baechle
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-
-#include <asm/mipsregs.h>
-#include <asm/pci_channel.h>
-
-/*
- * WARNING: Example of how _NOT_ to do it.
- */
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- int bus = dev->bus->number;
-
- if (bus == 0 && slot == 1)
- return 3; /* PCI-X A */
- if (bus == 0 && slot == 2)
- return 4; /* PCI-X B */
- if (bus == 1 && slot == 1)
- return 5; /* PCI A */
- if (bus == 1 && slot == 2)
- return 6; /* PCI B */
-
-return 0;
- panic("Whooops in pcibios_map_irq");
-}
-
-struct pci_fixup pcibios_fixups[] = {
- {0}
-};
+++ /dev/null
-/*
- * fixup-mpc30x.c, The Victor MP-C303/304 specific PCI fixups.
- *
- * Copyright (C) 2002,2004 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include <linux/init.h>
-#include <linux/pci.h>
-
-#include <asm/vr41xx/mpc30x.h>
-#include <asm/vr41xx/vrc4173.h>
-
-static const int internal_func_irqs[] __initdata = {
- VRC4173_CASCADE_IRQ,
- VRC4173_AC97_IRQ,
- VRC4173_USB_IRQ,
-};
-
-static char irq_tab_mpc30x[] __initdata = {
- [12] = VRC4173_PCMCIA1_IRQ,
- [13] = VRC4173_PCMCIA2_IRQ,
- [29] = MQ200_IRQ,
-};
-
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- if (slot == 30)
- return internal_func_irqs[PCI_FUNC(dev->devfn)];
-
- return irq_tab_mpc30x[slot];
-}
-
-struct pci_fixup pcibios_fixups[] __initdata = {
- { .pass = 0, },
-};
+++ /dev/null
-/*
- * Copyright 2002 Momentum Computer Inc.
- * Author: Matthew Dharm <mdharm@momenco.com>
- *
- * Based on work for the Linux port to the Ocelot board, which is
- * Copyright 2001 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- *
- * arch/mips/momentum/ocelot_g/pci.c
- * Board-specific PCI routines for mv64340 controller.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- int bus = dev->bus->number;
-
- if (bus == 0 && slot == 1)
- return 2; /* PCI-X A */
- if (bus == 1 && slot == 1)
- return 12; /* PCI-X B */
- if (bus == 1 && slot == 2)
- return 4; /* PCI B */
-
-return 0;
- panic("Whooops in pcibios_map_irq");
-}
-
-struct pci_fixup pcibios_fixups[] = {
- {0}
-};
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * Copyright (C) 2004 Ralf Baechle (ralf@linux-mips.org)
- */
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- int bus = dev->bus->number;
-
- if (bus == 0 && slot == 1) /* Intel 82543 Gigabit MAC */
- return 2; /* irq_nr is 2 for INT0 */
-
- if (bus == 0 && slot == 2) /* Intel 82543 Gigabit MAC */
- return 3; /* irq_nr is 3 for INT1 */
-
- if (bus == 1 && slot == 3) /* Intel 21555 bridge */
- return 5; /* irq_nr is 8 for INT6 */
-
- if (bus == 1 && slot == 4) /* PMC Slot */
- return 9; /* irq_nr is 9 for INT7 */
-
- return -1;
-}
-
-struct pci_fixup pcibios_fixups[] = {
- {0}
-};
+++ /dev/null
-/*
- * fixup-tb0219.c, The TANBAC TB0219 specific PCI fixups.
- *
- * Copyright (C) 2003 Megasolution Inc. <matsu@megasolution.jp>
- * Copyright (C) 2004 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include <linux/init.h>
-#include <linux/pci.h>
-
-#include <asm/vr41xx/tb0219.h>
-
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- int irq = -1;
-
- switch (slot) {
- case 12:
- vr41xx_set_irq_trigger(TB0219_PCI_SLOT1_PIN,
- TRIGGER_LEVEL,
- SIGNAL_THROUGH);
- vr41xx_set_irq_level(TB0219_PCI_SLOT1_PIN,
- LEVEL_LOW);
- irq = TB0219_PCI_SLOT1_IRQ;
- break;
- case 13:
- vr41xx_set_irq_trigger(TB0219_PCI_SLOT2_PIN,
- TRIGGER_LEVEL,
- SIGNAL_THROUGH);
- vr41xx_set_irq_level(TB0219_PCI_SLOT2_PIN,
- LEVEL_LOW);
- irq = TB0219_PCI_SLOT2_IRQ;
- break;
- case 14:
- vr41xx_set_irq_trigger(TB0219_PCI_SLOT3_PIN,
- TRIGGER_LEVEL,
- SIGNAL_THROUGH);
- vr41xx_set_irq_level(TB0219_PCI_SLOT3_PIN,
- LEVEL_LOW);
- irq = TB0219_PCI_SLOT3_IRQ;
- break;
- default:
- break;
- }
-
- return irq;
-}
-
-struct pci_fixup pcibios_fixups[] __initdata = {
- { .pass = 0, },
-};
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2003, 2004 Ralf Baechle (ralf@linux-mips.org)
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-
-#include <asm/marvell.h>
-
-static int mv_read_config(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 * val)
-{
- struct mv_pci_controller *mvbc = bus->sysdata;
- unsigned long address_reg, data_reg;
- u32 address;
-
- address_reg = mvbc->config_addr;
- data_reg = mvbc->config_vreg;
-
- /* Accessing device 31 crashes those Marvells. Since years.
- Will they ever make sane controllers ... */
- if (PCI_SLOT(devfn) == 31)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- address = (bus->number << 16) | (devfn << 8) |
- (where & 0xfc) | 0x80000000;
-
- /* start the configuration cycle */
- MV_WRITE(address_reg, address);
-
- switch (size) {
- case 1:
- *val = MV_READ_8(data_reg + (where & 0x3));
- break;
-
- case 2:
- *val = MV_READ_16(data_reg + (where & 0x3));
- break;
-
- case 4:
- *val = MV_READ(data_reg);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int mv_write_config(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 val)
-{
- struct mv_pci_controller *mvbc = bus->sysdata;
- unsigned long address_reg, data_reg;
- u32 address;
-
- address_reg = mvbc->config_addr;
- data_reg = mvbc->config_vreg;
-
- /* Accessing device 31 crashes those Marvells. Since years.
- Will they ever make sane controllers ... */
- if (PCI_SLOT(devfn) == 31)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- address = (bus->number << 16) | (devfn << 8) |
- (where & 0xfc) | 0x80000000;
-
- /* start the configuration cycle */
- MV_WRITE(address_reg, address);
-
- switch (size) {
- case 1:
- MV_WRITE_8(data_reg + (where & 0x3), val);
- break;
-
- case 2:
- MV_WRITE_16(data_reg + (where & 0x3), val);
- break;
-
- case 4:
- MV_WRITE(data_reg, val);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-struct pci_ops mv_pci_ops = {
- .read = mv_read_config,
- .write = mv_write_config
-};
+++ /dev/null
-/*
- * Copyright 2003 PMC-Sierra
- * Author: Manish Lachwani (lachwani@pmc-sierra.com)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-
-#include <asm/titan_dep.h>
-
-static int titan_ht_config_read_dword(struct pci_bus *bus, unsigned int devfn,
- int offset, u32 * val)
-{
- volatile uint32_t address;
- int busno;
-
- busno = bus->number;
-
- address = (busno << 16) | (devfn << 8) | (offset & 0xfc) | 0x80000000;
- if (busno != 0)
- address |= 1;
-
- /*
- * RM9000 HT Errata: Issue back to back HT config
- * transcations. Issue a BIU sync before and
- * after the HT cycle
- */
-
- *(volatile int32_t *) 0xfb0000f0 |= 0x2;
-
- udelay(30);
-
- *(volatile int32_t *) 0xfb0006f8 = address;
- *(val) = *(volatile int32_t *) 0xfb0006fc;
-
- udelay(30);
-
- * (volatile int32_t *) 0xfb0000f0 |= 0x2;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int titan_ht_config_read(struct pci_bus *bus, unsigned int devfn,
- int offset, int size, u32 * val)
-{
- uint32_t dword;
-
- titan_ht_config_read_dword(bus, devfn, offset, &dword);
-
- dword >>= ((offset & 3) << 3);
- dword &= (0xffffffffU >> ((4 - size) << 8));
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static inline int titan_ht_config_write_dword(struct pci_bus *bus,
- unsigned int devfn, int offset, u32 val)
-{
- volatile uint32_t address;
- int busno;
-
- busno = bus->number;
-
- address = (busno << 16) | (devfn << 8) | (offset & 0xfc) | 0x80000000;
- if (busno != 0)
- address |= 1;
-
- *(volatile int32_t *) 0xfb0000f0 |= 0x2;
-
- udelay(30);
-
- *(volatile int32_t *) 0xfb0006f8 = address;
- *(volatile int32_t *) 0xfb0006fc = val;
-
- udelay(30);
-
- *(volatile int32_t *) 0xfb0000f0 |= 0x2;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int titan_ht_config_write(struct pci_bus *bus, unsigned int devfn,
- int offset, int size, u32 val)
-{
- uint32_t val1, val2, mask;
-
- titan_ht_config_read_dword(bus, devfn, offset, &val2);
-
- val1 = val << ((offset & 3) << 3);
- mask = ~(0xffffffffU >> ((4 - size) << 8));
- val2 &= ~(mask << ((offset & 3) << 8));
-
- titan_ht_config_write_dword(bus, devfn, offset, val1 | val2);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-struct pci_ops titan_ht_pci_ops = {
- .read = titan_ht_config_read,
- .write = titan_ht_config_write,
-};
+++ /dev/null
-/*
- * ops-vr41xx.c, PCI configuration routines for the PCIU of NEC VR4100 series.
- *
- * Copyright (C) 2001-2003 MontaVista Software Inc.
- * Author: Yoichi Yuasa <yyuasa@mvista.com or source@mvista.com>
- * Copyright (C) 2004 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-/*
- * Changes:
- * MontaVista Software Inc. <yyuasa@mvista.com> or <source@mvista.com>
- * - New creation, NEC VR4122 and VR4131 are supported.
- */
-#include <linux/pci.h>
-#include <linux/types.h>
-
-#include <asm/io.h>
-
-#define PCICONFDREG KSEG1ADDR(0x0f000c14)
-#define PCICONFAREG KSEG1ADDR(0x0f000c18)
-
-static inline int set_pci_configuration_address(unsigned char number,
- unsigned int devfn, int where)
-{
- if (number == 0) {
- /*
- * Type 0 configuration
- */
- if (PCI_SLOT(devfn) < 11 || where > 0xff)
- return -EINVAL;
-
- writel((1U << PCI_SLOT(devfn)) | (PCI_FUNC(devfn) << 8) |
- (where & 0xfc), PCICONFAREG);
- } else {
- /*
- * Type 1 configuration
- */
- if (where > 0xff)
- return -EINVAL;
-
- writel(((uint32_t)number << 16) | ((devfn & 0xff) << 8) |
- (where & 0xfc) | 1U, PCICONFAREG);
- }
-
- return 0;
-}
-
-static int pci_config_read(struct pci_bus *bus, unsigned int devfn, int where,
- int size, uint32_t *val)
-{
- uint32_t data;
-
- *val = 0xffffffffU;
- if (set_pci_configuration_address(bus->number, devfn, where) < 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- data = readl(PCICONFDREG);
-
- switch (size) {
- case 1:
- *val = (data >> ((where & 3) << 3)) & 0xffU;
- break;
- case 2:
- *val = (data >> ((where & 2) << 3)) & 0xffffU;
- break;
- case 4:
- *val = data;
- break;
- default:
- return PCIBIOS_FUNC_NOT_SUPPORTED;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_config_write(struct pci_bus *bus, unsigned int devfn, int where,
- int size, uint32_t val)
-{
- uint32_t data;
- int shift;
-
- if (set_pci_configuration_address(bus->number, devfn, where) < 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- data = readl(PCICONFDREG);
-
- switch (size) {
- case 1:
- shift = (where & 3) << 3;
- data &= ~(0xffU << shift);
- data |= ((val & 0xffU) << shift);
- break;
- case 2:
- shift = (where & 2) << 3;
- data &= ~(0xffffU << shift);
- data |= ((val & 0xffffU) << shift);
- break;
- case 4:
- data = val;
- break;
- default:
- return PCIBIOS_FUNC_NOT_SUPPORTED;
- }
-
- writel(data, PCICONFDREG);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-struct pci_ops vr41xx_pci_ops = {
- .read = pci_config_read,
- .write = pci_config_write,
-};
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2004 by Ralf Baechle
- *
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <asm/gt64240.h>
-#include <asm/pci_channel.h>
-
-extern struct pci_ops titan_pci_ops;
-
-static struct resource py_mem_resource = {
- "Titan PCI MEM", 0xe0000000UL, 0xe3ffffffUL, IORESOURCE_MEM
-};
-
-static struct resource py_io_resource = {
- "Titan IO MEM", 0x00000000UL, 0x00ffffffUL, IORESOURCE_IO,
-};
-
-static struct pci_controller py_controller = {
- .pci_ops = &titan_pci_ops,
- .mem_resource = &py_mem_resource,
- .mem_offset = 0x10000000UL,
- .io_resource = &py_io_resource,
- .io_offset = 0x00000000UL
-};
-
-static int __init pmc_yosemite_setup(void)
-{
- register_pci_controller(&py_controller);
-}
+++ /dev/null
-/*
- * Copyright 2003 PMC-Sierra
- * Author: Manish Lachwani (lachwani@pmc-sierra.com)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * Support for KGDB for the Yosemite board. We make use of single serial
- * port to be used for KGDB as well as console. The second serial port
- * seems to be having a problem. Single IRQ is allocated for both the
- * ports. Hence, the interrupt routing code needs to figure out whether
- * the interrupt came from channel A or B.
- */
-
-#include <linux/config.h>
-
-#if defined(CONFIG_KGDB)
-#include <asm/serial.h>
-
-/*
- * Baud rate, Parity, Data and Stop bit settings for the
- * serial port on the Yosemite. Note that the Early printk
- * patch has been added. So, we should be all set to go
- */
-#define YOSEMITE_BAUD_2400 2400
-#define YOSEMITE_BAUD_4800 4800
-#define YOSEMITE_BAUD_9600 9600
-#define YOSEMITE_BAUD_19200 19200
-#define YOSEMITE_BAUD_38400 38400
-#define YOSEMITE_BAUD_57600 57600
-#define YOSEMITE_BAUD_115200 115200
-
-#define YOSEMITE_PARITY_NONE 0
-#define YOSEMITE_PARITY_ODD 0x08
-#define YOSEMITE_PARITY_EVEN 0x18
-#define YOSEMITE_PARITY_MARK 0x28
-#define YOSEMITE_PARITY_SPACE 0x38
-
-#define YOSEMITE_DATA_5BIT 0x0
-#define YOSEMITE_DATA_6BIT 0x1
-#define YOSEMITE_DATA_7BIT 0x2
-#define YOSEMITE_DATA_8BIT 0x3
-
-#define YOSEMITE_STOP_1BIT 0x0
-#define YOSEMITE_STOP_2BIT 0x4
-
-/* This is crucial */
-#define SERIAL_REG_OFS 0x1
-
-#define SERIAL_RCV_BUFFER 0x0
-#define SERIAL_TRANS_HOLD 0x0
-#define SERIAL_SEND_BUFFER 0x0
-#define SERIAL_INTR_ENABLE (1 * SERIAL_REG_OFS)
-#define SERIAL_INTR_ID (2 * SERIAL_REG_OFS)
-#define SERIAL_DATA_FORMAT (3 * SERIAL_REG_OFS)
-#define SERIAL_LINE_CONTROL (3 * SERIAL_REG_OFS)
-#define SERIAL_MODEM_CONTROL (4 * SERIAL_REG_OFS)
-#define SERIAL_RS232_OUTPUT (4 * SERIAL_REG_OFS)
-#define SERIAL_LINE_STATUS (5 * SERIAL_REG_OFS)
-#define SERIAL_MODEM_STATUS (6 * SERIAL_REG_OFS)
-#define SERIAL_RS232_INPUT (6 * SERIAL_REG_OFS)
-#define SERIAL_SCRATCH_PAD (7 * SERIAL_REG_OFS)
-
-#define SERIAL_DIVISOR_LSB (0 * SERIAL_REG_OFS)
-#define SERIAL_DIVISOR_MSB (1 * SERIAL_REG_OFS)
-
-/*
- * Functions to READ and WRITE to serial port 0
- */
-#define SERIAL_READ(ofs) (*((volatile unsigned char*) \
- (TITAN_SERIAL_BASE + ofs)))
-
-#define SERIAL_WRITE(ofs, val) ((*((volatile unsigned char*) \
- (TITAN_SERIAL_BASE + ofs))) = val)
-
-/*
- * Functions to READ and WRITE to serial port 1
- */
-#define SERIAL_READ_1(ofs) (*((volatile unsigned char*) \
- (TITAN_SERIAL_BASE_1 + ofs)
-
-#define SERIAL_WRITE_1(ofs, val) ((*((volatile unsigned char*) \
- (TITAN_SERIAL_BASE_1 + ofs))) = val)
-
-/*
- * Second serial port initialization
- */
-void init_second_port(void)
-{
- /* Disable Interrupts */
- SERIAL_WRITE_1(SERIAL_LINE_CONTROL, 0x0);
- SERIAL_WRITE_1(SERIAL_INTR_ENABLE, 0x0);
-
- {
- unsigned int divisor;
-
- SERIAL_WRITE_1(SERIAL_LINE_CONTROL, 0x80);
- divisor = TITAN_SERIAL_BASE_BAUD / YOSEMITE_BAUD_115200;
- SERIAL_WRITE_1(SERIAL_DIVISOR_LSB, divisor & 0xff);
-
- SERIAL_WRITE_1(SERIAL_DIVISOR_MSB,
- (divisor & 0xff00) >> 8);
- SERIAL_WRITE_1(SERIAL_LINE_CONTROL, 0x0);
- }
-
- SERIAL_WRITE_1(SERIAL_DATA_FORMAT, YOSEMITE_DATA_8BIT |
- YOSEMITE_PARITY_NONE | YOSEMITE_STOP_1BIT);
-
- /* Enable Interrupts */
- SERIAL_WRITE_1(SERIAL_INTR_ENABLE, 0xf);
-}
-
-/* Initialize the serial port for KGDB debugging */
-void debugInit(unsigned int baud, unsigned char data, unsigned char parity,
- unsigned char stop)
-{
- /* Disable Interrupts */
- SERIAL_WRITE(SERIAL_LINE_CONTROL, 0x0);
- SERIAL_WRITE(SERIAL_INTR_ENABLE, 0x0);
-
- {
- unsigned int divisor;
-
- SERIAL_WRITE(SERIAL_LINE_CONTROL, 0x80);
-
- divisor = TITAN_SERIAL_BASE_BAUD / baud;
- SERIAL_WRITE(SERIAL_DIVISOR_LSB, divisor & 0xff);
-
- SERIAL_WRITE(SERIAL_DIVISOR_MSB, (divisor & 0xff00) >> 8);
- SERIAL_WRITE(SERIAL_LINE_CONTROL, 0x0);
- }
-
- SERIAL_WRITE(SERIAL_DATA_FORMAT, data | parity | stop);
-}
-
-static int remoteDebugInitialized = 0;
-
-unsigned char getDebugChar(void)
-{
- if (!remoteDebugInitialized) {
- remoteDebugInitialized = 1;
- debugInit(YOSEMITE_BAUD_115200,
- YOSEMITE_DATA_8BIT,
- YOSEMITE_PARITY_NONE, YOSEMITE_STOP_1BIT);
- }
-
- while ((SERIAL_READ(SERIAL_LINE_STATUS) & 0x1) == 0);
- return SERIAL_READ(SERIAL_RCV_BUFFER);
-}
-
-int putDebugChar(unsigned char byte)
-{
- if (!remoteDebugInitialized) {
- remoteDebugInitialized = 1;
- debugInit(YOSEMITE_BAUD_115200,
- YOSEMITE_DATA_8BIT,
- YOSEMITE_PARITY_NONE, YOSEMITE_STOP_1BIT);
- }
-
- while ((SERIAL_READ(SERIAL_LINE_STATUS) & 0x20) == 0);
- SERIAL_WRITE(SERIAL_SEND_BUFFER, byte);
-
- return 1;
-}
-#endif
+++ /dev/null
-/*
- * Copyright (C) 2003 PMC-Sierra Inc.
- * Author: Manish Lachwani (lachwani@pmc-sierra.com)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * Detailed Description:
- *
- * This block implements the I2C interface to the slave devices like the
- * Atmel 24C32 EEPROM and the MAX 1619 Sensors device. The I2C Master interface
- * can be controlled by the SCMB block. And the SCMB block kicks in only when
- * using the Ethernet Mode of operation and __not__ the SysAD mode
- *
- * The SCMB controls the two modes: MDIO and the I2C. The MDIO mode is used to
- * communicate with the Quad-PHY from Marvel. The I2C is used to communicate
- * with the I2C slave devices. It seems that the driver does not explicitly
- * deal with the control of SDA and SCL serial lines. So, the driver will set
- * the slave address, drive the command and then the data. The SCMB will then
- * control the two serial lines as required.
- *
- * It seems the documents are very unclear abt this. Hence, I took some time
- * out to write the desciption to have an idea of how the I2C can actually
- * work. Currently, this Linux driver wont be integrated into the generic Linux
- * I2C framework. And finally, the I2C interface is also known as the 2BI
- * interface. 2BI means 2-bit interface referring to SDA and SCL serial lines
- * respectively.
- *
- * - Manish Lachwani (12/09/2003)
- */
-
-#include "i2c-yosemite.h"
-
-/*
- * Poll the I2C interface for the BUSY bit.
- */
-static int titan_i2c_poll(void)
-{
- int i = 0;
- unsigned long val = 0;
-
- for (i = 0; i < TITAN_I2C_MAX_POLL; i++) {
- val = TITAN_I2C_READ(TITAN_I2C_COMMAND);
-
- if (!(val & 0x8000))
- return 0;
- }
-
- return TITAN_I2C_ERR_TIMEOUT;
-}
-
-/*
- * Execute the I2C command
- */
-int titan_i2c_xfer(unsigned int slave_addr, titan_i2c_command * cmd,
- int size, unsigned int *addr)
-{
- int loop = 0, bytes, i;
- unsigned int *write_data, data, *read_data;
- unsigned long reg_val, val;
-
- write_data = cmd->data;
- read_data = addr;
-
- TITAN_I2C_WRITE(TITAN_I2C_SLAVE_ADDRESS, slave_addr);
-
- if (cmd->type == TITAN_I2C_CMD_WRITE)
- loop = cmd->write_size;
- else
- loop = size;
-
- while (loop > 0) {
- if ((cmd->type == TITAN_I2C_CMD_WRITE) ||
- (cmd->type == TITAN_I2C_CMD_READ_WRITE)) {
-
- reg_val = TITAN_I2C_DATA;
- for (i = 0; i < TITAN_I2C_MAX_WORDS_PER_RW;
- ++i, write_data += 2, reg_val += 4) {
- if (bytes < cmd->write_size) {
- data = write_data[0];
- ++data;
- }
-
- if (bytes < cmd->write_size) {
- data = write_data[1];
- ++data;
- }
-
- TITAN_I2C_WRITE(reg_val, data);
- }
- }
-
- TITAN_I2C_WRITE(TITAN_I2C_COMMAND,
- (unsigned int) (cmd->type << 13));
- if (titan_i2c_poll() != TITAN_I2C_ERR_OK)
- return TITAN_I2C_ERR_TIMEOUT;
-
- if ((cmd->type == TITAN_I2C_CMD_READ) ||
- (cmd->type == TITAN_I2C_CMD_READ_WRITE)) {
-
- reg_val = TITAN_I2C_DATA;
- for (i = 0; i < TITAN_I2C_MAX_WORDS_PER_RW;
- ++i, read_data += 2, reg_val += 4) {
- data = TITAN_I2C_READ(reg_val);
-
- if (bytes < size) {
- read_data[0] = data & 0xff;
- ++bytes;
- }
-
- if (bytes < size) {
- read_data[1] =
- ((data >> 8) & 0xff);
- ++bytes;
- }
- }
- }
-
- loop -= (TITAN_I2C_MAX_WORDS_PER_RW * 2);
- }
-
- /*
- * Read the Interrupt status and then return the appropriate error code
- */
-
- val = TITAN_I2C_READ(TITAN_I2C_INTERRUPTS);
- if (val & 0x0020)
- return TITAN_I2C_ERR_ARB_LOST;
-
- if (val & 0x0040)
- return TITAN_I2C_ERR_NO_RESP;
-
- if (val & 0x0080)
- return TITAN_I2C_ERR_DATA_COLLISION;
-
- return TITAN_I2C_ERR_OK;
-}
-
-/*
- * Init the I2C subsystem of the PMC-Sierra Yosemite board
- */
-int titan_i2c_init(titan_i2c_config * config)
-{
- unsigned int val;
-
- /*
- * Reset the SCMB and program into the I2C mode
- */
- TITAN_I2C_WRITE(TITAN_I2C_SCMB_CONTROL, 0xA000);
- TITAN_I2C_WRITE(TITAN_I2C_SCMB_CONTROL, 0x2000);
-
- /*
- * Configure the filtera and clka values
- */
- val = TITAN_I2C_READ(TITAN_I2C_SCMB_CLOCK_A);
- val |= ((val & ~(0xF000)) | ((config->filtera << 12) & 0xF000));
- val |= ((val & ~(0x03FF)) | (config->clka & 0x03FF));
- TITAN_I2C_WRITE(TITAN_I2C_SCMB_CLOCK_A, val);
-
- /*
- * Configure the filterb and clkb values
- */
- val = TITAN_I2C_READ(TITAN_I2C_SCMB_CLOCK_B);
- val |= ((val & ~(0xF000)) | ((config->filterb << 12) & 0xF000));
- val |= ((val & ~(0x03FF)) | (config->clkb & 0x03FF));
- TITAN_I2C_WRITE(TITAN_I2C_SCMB_CLOCK_B, val);
-
- return TITAN_I2C_ERR_OK;
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001, 2002, 2004 Ralf Baechle
- */
-#include <linux/init.h>
-#include <linux/console.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/termios.h>
-#include <linux/sched.h>
-#include <linux/tty.h>
-
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-#include <asm/serial.h>
-#include <asm/io.h>
-
-/* SUPERIO uart register map */
-struct yo_uartregs {
- union {
- volatile u8 rbr; /* read only, DLAB == 0 */
- volatile u8 thr; /* write only, DLAB == 0 */
- volatile u8 dll; /* DLAB == 1 */
- } u1;
- union {
- volatile u8 ier; /* DLAB == 0 */
- volatile u8 dlm; /* DLAB == 1 */
- } u2;
- union {
- volatile u8 iir; /* read only */
- volatile u8 fcr; /* write only */
- } u3;
- volatile u8 iu_lcr;
- volatile u8 iu_mcr;
- volatile u8 iu_lsr;
- volatile u8 iu_msr;
- volatile u8 iu_scr;
-} yo_uregs_t;
-
-#define iu_rbr u1.rbr
-#define iu_thr u1.thr
-#define iu_dll u1.dll
-#define iu_ier u2.ier
-#define iu_dlm u2.dlm
-#define iu_iir u3.iir
-#define iu_fcr u3.fcr
-
-extern unsigned long uart_base;
-
-#define IO_BASE_64 0x9000000000000000ULL
-
-static unsigned char readb_outer_space(unsigned long phys)
-{
- unsigned long long vaddr = IO_BASE_64 | phys;
- unsigned char res;
- unsigned int sr;
-
- sr = read_c0_status();
- write_c0_status((sr | ST0_KX) & ~ ST0_IE);
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
-
- __asm__ __volatile__ (
- " .set mips3 \n"
- " ld %0, (%0) \n"
- " lbu %0, (%0) \n"
- " .set mips0 \n"
- : "=r" (res)
- : "0" (&vaddr));
-
- write_c0_status(sr);
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
-
- return res;
-}
-
-static void writeb_outer_space(unsigned long phys, unsigned char c)
-{
- unsigned long long vaddr = IO_BASE_64 | phys;
- unsigned long tmp;
- unsigned int sr;
-
- sr = read_c0_status();
- write_c0_status((sr | ST0_KX) & ~ ST0_IE);
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
-
- __asm__ __volatile__ (
- " .set mips3 \n"
- " ld %0, (%1) \n"
- " sb %2, (%0) \n"
- " .set mips0 \n"
- : "=r" (tmp)
- : "r" (&vaddr), "r" (c));
-
- write_c0_status(sr);
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
- __asm__("sll $0, $0, 2\n");
-}
-
-static inline struct yo_uartregs *console_uart(void)
-{
- return (struct yo_uartregs *) (uart_base + 8);
-}
-
-void prom_putchar(char c)
-{
- unsigned long lsr = 0xfd000008UL + offsetof(struct yo_uartregs, iu_lsr);
- unsigned long thr = 0xfd000008UL + offsetof(struct yo_uartregs, iu_thr);
-
- while ((readb_outer_space(lsr) & 0x20) == 0);
- writeb_outer_space(thr, c);
-}
-
-char __init prom_getchar(void)
-{
- return 0;
-}
+++ /dev/null
-/*
- * tb0219.c, Setup for the TANBAC TB0219
- *
- * Copyright (C) 2003 Megasolution Inc. <matsu@megasolution.jp>
- * Copyright (C) 2004 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/reboot.h>
-
-#define TB0219_RESET_REGS KSEG1ADDR(0x0a00000e)
-
-#define tb0219_hard_reset() writew(0, TB0219_RESET_REGS)
-
-static void tanbac_tb0219_restart(char *command)
-{
- local_irq_disable();
- tb0219_hard_reset();
- while (1);
-}
-
-static int __init tanbac_tb0219_setup(void)
-{
- _machine_restart = tanbac_tb0219_restart;
-
- return 0;
-}
-
-early_initcall(tanbac_tb0219_setup);
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_PARISC=y
-CONFIG_MMU=y
-CONFIG_STACK_GROWSUP=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-# CONFIG_CLEAN_COMPILE is not set
-# CONFIG_STANDALONE is not set
-CONFIG_BROKEN=y
-CONFIG_BROKEN_ON_SMP=y
-
-#
-# General setup
-#
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-CONFIG_POSIX_MQUEUE=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-# CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=16
-CONFIG_HOTPLUG=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_EMBEDDED=y
-CONFIG_KALLSYMS=y
-CONFIG_KALLSYMS_ALL=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULE_FORCE_UNLOAD=y
-CONFIG_OBSOLETE_MODPARM=y
-# CONFIG_MODVERSIONS is not set
-CONFIG_KMOD=y
-
-#
-# Processor type and features
-#
-# CONFIG_PA7000 is not set
-# CONFIG_PA7100LC is not set
-# CONFIG_PA7200 is not set
-# CONFIG_PA7300LC is not set
-CONFIG_PA8X00=y
-CONFIG_PA20=y
-CONFIG_PREFETCH=y
-CONFIG_PARISC64=y
-CONFIG_64BIT=y
-# CONFIG_SMP is not set
-CONFIG_DISCONTIGMEM=y
-# CONFIG_PREEMPT is not set
-CONFIG_COMPAT=y
-
-#
-# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
-#
-# CONFIG_GSC is not set
-CONFIG_PCI=y
-CONFIG_PCI_LEGACY_PROC=y
-CONFIG_PCI_NAMES=y
-CONFIG_PCI_LBA=y
-CONFIG_IOSAPIC=y
-CONFIG_IOMMU_SBA=y
-# CONFIG_SUPERIO is not set
-CONFIG_CHASSIS_LCD_LED=y
-# CONFIG_PDC_CHASSIS is not set
-
-#
-# PCMCIA/CardBus support
-#
-CONFIG_PCMCIA=m
-CONFIG_PCMCIA_DEBUG=y
-CONFIG_YENTA=m
-CONFIG_CARDBUS=y
-# CONFIG_I82092 is not set
-# CONFIG_TCIC is not set
-
-#
-# PCI Hotplug Support
-#
-# CONFIG_HOTPLUG_PCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-# CONFIG_FW_LOADER is not set
-CONFIG_DEBUG_DRIVER=y
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-CONFIG_BLK_DEV_UMEM=m
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_CARMEL is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=6144
-CONFIG_BLK_DEV_INITRD=y
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-CONFIG_SCSI=y
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-CONFIG_CHR_DEV_ST=y
-# CONFIG_CHR_DEV_OSST is not set
-CONFIG_BLK_DEV_SR=y
-# CONFIG_BLK_DEV_SR_VENDOR is not set
-CONFIG_CHR_DEV_SG=y
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-
-#
-# SCSI Transport Attributes
-#
-CONFIG_SCSI_SPI_ATTRS=y
-CONFIG_SCSI_FC_ATTRS=m
-
-#
-# SCSI low-level drivers
-#
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AACRAID is not set
-# CONFIG_SCSI_AIC7XXX is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-# CONFIG_SCSI_ADVANSYS is not set
-# CONFIG_SCSI_MEGARAID is not set
-# CONFIG_SCSI_SATA is not set
-# CONFIG_SCSI_BUSLOGIC is not set
-# CONFIG_SCSI_CPQFCTS is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_EATA is not set
-# CONFIG_SCSI_EATA_PIO is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_GDTH is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-CONFIG_SCSI_SYM53C8XX_2=y
-CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
-CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
-CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
-CONFIG_SCSI_SYM53C8XX_IOMAPPED=y
-# CONFIG_SCSI_IPR is not set
-# CONFIG_SCSI_PCI2000 is not set
-# CONFIG_SCSI_PCI2220I is not set
-# CONFIG_SCSI_QLOGIC_ISP is not set
-CONFIG_SCSI_QLOGIC_FC=m
-# CONFIG_SCSI_QLOGIC_FC_FIRMWARE is not set
-CONFIG_SCSI_QLOGIC_1280=m
-CONFIG_SCSI_QLA2XXX=y
-# CONFIG_SCSI_QLA21XX is not set
-# CONFIG_SCSI_QLA22XX is not set
-CONFIG_SCSI_QLA2300=m
-CONFIG_SCSI_QLA2322=m
-CONFIG_SCSI_QLA6312=m
-CONFIG_SCSI_QLA6322=m
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-CONFIG_SCSI_DEBUG=m
-
-#
-# PCMCIA SCSI adapter support
-#
-# CONFIG_PCMCIA_FDOMAIN is not set
-# CONFIG_PCMCIA_QLOGIC is not set
-# CONFIG_PCMCIA_SYM53C500 is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-CONFIG_MD=y
-CONFIG_BLK_DEV_MD=y
-CONFIG_MD_LINEAR=y
-CONFIG_MD_RAID0=y
-CONFIG_MD_RAID1=y
-# CONFIG_MD_RAID5 is not set
-# CONFIG_MD_RAID6 is not set
-# CONFIG_MD_MULTIPATH is not set
-# CONFIG_BLK_DEV_DM is not set
-
-#
-# Fusion MPT device support
-#
-CONFIG_FUSION=m
-CONFIG_FUSION_MAX_SGE=40
-CONFIG_FUSION_ISENSE=m
-CONFIG_FUSION_CTL=m
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Networking support
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-CONFIG_PACKET_MMAP=y
-CONFIG_NETLINK_DEV=y
-CONFIG_UNIX=y
-CONFIG_NET_KEY=m
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_IP_MROUTE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-CONFIG_INET_AH=m
-CONFIG_INET_ESP=m
-# CONFIG_INET_IPCOMP is not set
-
-#
-# IP: Virtual Server Configuration
-#
-# CONFIG_IP_VS is not set
-# CONFIG_IPV6 is not set
-CONFIG_NETFILTER=y
-# CONFIG_NETFILTER_DEBUG is not set
-
-#
-# IP: Netfilter Configuration
-#
-CONFIG_IP_NF_CONNTRACK=m
-CONFIG_IP_NF_FTP=m
-CONFIG_IP_NF_IRC=m
-CONFIG_IP_NF_TFTP=m
-CONFIG_IP_NF_AMANDA=m
-CONFIG_IP_NF_QUEUE=m
-CONFIG_IP_NF_IPTABLES=m
-CONFIG_IP_NF_MATCH_LIMIT=m
-CONFIG_IP_NF_MATCH_IPRANGE=m
-CONFIG_IP_NF_MATCH_MAC=m
-CONFIG_IP_NF_MATCH_PKTTYPE=m
-CONFIG_IP_NF_MATCH_MARK=m
-CONFIG_IP_NF_MATCH_MULTIPORT=m
-CONFIG_IP_NF_MATCH_TOS=m
-CONFIG_IP_NF_MATCH_RECENT=m
-CONFIG_IP_NF_MATCH_ECN=m
-CONFIG_IP_NF_MATCH_DSCP=m
-CONFIG_IP_NF_MATCH_AH_ESP=m
-CONFIG_IP_NF_MATCH_LENGTH=m
-CONFIG_IP_NF_MATCH_TTL=m
-CONFIG_IP_NF_MATCH_TCPMSS=m
-CONFIG_IP_NF_MATCH_HELPER=m
-CONFIG_IP_NF_MATCH_STATE=m
-CONFIG_IP_NF_MATCH_CONNTRACK=m
-CONFIG_IP_NF_MATCH_OWNER=m
-CONFIG_IP_NF_FILTER=m
-CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_NAT=m
-CONFIG_IP_NF_NAT_NEEDED=y
-CONFIG_IP_NF_TARGET_MASQUERADE=m
-CONFIG_IP_NF_TARGET_REDIRECT=m
-CONFIG_IP_NF_TARGET_NETMAP=m
-CONFIG_IP_NF_TARGET_SAME=m
-# CONFIG_IP_NF_NAT_LOCAL is not set
-CONFIG_IP_NF_NAT_SNMP_BASIC=m
-CONFIG_IP_NF_NAT_IRC=m
-CONFIG_IP_NF_NAT_FTP=m
-CONFIG_IP_NF_NAT_TFTP=m
-CONFIG_IP_NF_NAT_AMANDA=m
-CONFIG_IP_NF_MANGLE=m
-CONFIG_IP_NF_TARGET_TOS=m
-CONFIG_IP_NF_TARGET_ECN=m
-CONFIG_IP_NF_TARGET_DSCP=m
-CONFIG_IP_NF_TARGET_MARK=m
-CONFIG_IP_NF_TARGET_CLASSIFY=m
-CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
-CONFIG_IP_NF_TARGET_TCPMSS=m
-CONFIG_IP_NF_ARPTABLES=m
-CONFIG_IP_NF_ARPFILTER=m
-CONFIG_IP_NF_ARP_MANGLE=m
-# CONFIG_IP_NF_COMPAT_IPCHAINS is not set
-# CONFIG_IP_NF_COMPAT_IPFWADM is not set
-CONFIG_IP_NF_TARGET_NOTRACK=m
-CONFIG_IP_NF_RAW=m
-CONFIG_XFRM=y
-CONFIG_XFRM_USER=m
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-CONFIG_LLC=m
-CONFIG_LLC2=m
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_FASTROUTE is not set
-# CONFIG_NET_HW_FLOWCONTROL is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-CONFIG_NET_PKTGEN=m
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
-CONFIG_BONDING=m
-# CONFIG_EQUALIZER is not set
-CONFIG_TUN=m
-# CONFIG_ETHERTAP is not set
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=m
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-CONFIG_NET_VENDOR_3COM=y
-CONFIG_VORTEX=m
-CONFIG_TYPHOON=m
-
-#
-# Tulip family network device support
-#
-CONFIG_NET_TULIP=y
-CONFIG_DE2104X=y
-CONFIG_TULIP=y
-# CONFIG_TULIP_MWI is not set
-CONFIG_TULIP_MMIO=y
-# CONFIG_TULIP_NAPI is not set
-# CONFIG_DE4X5 is not set
-# CONFIG_WINBOND_840 is not set
-# CONFIG_DM9102 is not set
-CONFIG_PCMCIA_XIRCOM=m
-CONFIG_PCMCIA_XIRTULIP=m
-CONFIG_HP100=m
-CONFIG_NET_PCI=y
-CONFIG_PCNET32=m
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_DGRS is not set
-CONFIG_EEPRO100=m
-# CONFIG_EEPRO100_PIO is not set
-CONFIG_E100=m
-CONFIG_E100_NAPI=y
-# CONFIG_FEALNX is not set
-CONFIG_NATSEMI=m
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139CP is not set
-CONFIG_8139TOO=m
-# CONFIG_8139TOO_PIO is not set
-# CONFIG_8139TOO_TUNE_TWISTER is not set
-# CONFIG_8139TOO_8129 is not set
-# CONFIG_8139_OLD_RX_RESET is not set
-# CONFIG_SIS900 is not set
-CONFIG_EPIC100=m
-# CONFIG_SUNDANCE is not set
-CONFIG_VIA_RHINE=m
-CONFIG_VIA_RHINE_MMIO=y
-
-#
-# Ethernet (1000 Mbit)
-#
-CONFIG_ACENIC=m
-CONFIG_ACENIC_OMIT_TIGON_I=y
-CONFIG_DL2K=m
-CONFIG_E1000=m
-CONFIG_E1000_NAPI=y
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SK98LIN is not set
-CONFIG_TIGON3=m
-
-#
-# Ethernet (10000 Mbit)
-#
-CONFIG_IXGB=m
-CONFIG_IXGB_NAPI=y
-CONFIG_S2IO=m
-CONFIG_S2IO_NAPI=y
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-CONFIG_NET_RADIO=y
-
-#
-# Obsolete Wireless cards support (pre-802.11)
-#
-# CONFIG_STRIP is not set
-CONFIG_PCMCIA_WAVELAN=m
-CONFIG_PCMCIA_NETWAVE=m
-
-#
-# Wireless 802.11 Frequency Hopping cards support
-#
-# CONFIG_PCMCIA_RAYCS is not set
-
-#
-# Wireless 802.11b ISA/PCI cards support
-#
-# CONFIG_AIRO is not set
-CONFIG_HERMES=m
-CONFIG_PLX_HERMES=m
-CONFIG_TMD_HERMES=m
-CONFIG_PCI_HERMES=m
-# CONFIG_ATMEL is not set
-
-#
-# Wireless 802.11b Pcmcia/Cardbus cards support
-#
-CONFIG_PCMCIA_HERMES=m
-CONFIG_AIRO_CS=m
-# CONFIG_PCMCIA_WL3501 is not set
-
-#
-# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support
-#
-# CONFIG_PRISM54 is not set
-CONFIG_NET_WIRELESS=y
-
-#
-# PCMCIA network device support
-#
-CONFIG_NET_PCMCIA=y
-CONFIG_PCMCIA_3C589=m
-CONFIG_PCMCIA_3C574=m
-# CONFIG_PCMCIA_FMVJ18X is not set
-# CONFIG_PCMCIA_PCNET is not set
-# CONFIG_PCMCIA_NMCLAN is not set
-CONFIG_PCMCIA_SMC91C92=m
-CONFIG_PCMCIA_XIRC2PS=m
-# CONFIG_PCMCIA_AXNET is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-CONFIG_PPP=m
-# CONFIG_PPP_MULTILINK is not set
-# CONFIG_PPP_FILTER is not set
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
-CONFIG_PPP_BSDCOMP=m
-# CONFIG_PPPOE is not set
-# CONFIG_SLIP is not set
-# CONFIG_NET_FC is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-# CONFIG_SERIO is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-# CONFIG_SERIAL_8250_CS is not set
-CONFIG_SERIAL_8250_NR_UARTS=8
-CONFIG_SERIAL_8250_EXTENDED=y
-CONFIG_SERIAL_8250_MANY_PORTS=y
-CONFIG_SERIAL_8250_SHARE_IRQ=y
-# CONFIG_SERIAL_8250_DETECT_IRQ is not set
-# CONFIG_SERIAL_8250_MULTIPORT is not set
-# CONFIG_SERIAL_8250_RSA is not set
-
-#
-# Non-8250 serial port support
-#
-# CONFIG_SERIAL_MUX is not set
-CONFIG_PDC_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-# CONFIG_LEGACY_PTYS is not set
-# CONFIG_QIC02_TAPE is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-CONFIG_GEN_RTC=y
-CONFIG_GEN_RTC_X=y
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-
-#
-# PCMCIA character devices
-#
-# CONFIG_SYNCLINK_CS is not set
-CONFIG_RAW_DRIVER=y
-CONFIG_MAX_RAW_DEVS=256
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# Misc devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-
-#
-# Console display driver support
-#
-# CONFIG_MDA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE_COLUMNS=160
-CONFIG_DUMMY_CONSOLE_ROWS=64
-CONFIG_DUMMY_CONSOLE=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB is not set
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-# CONFIG_REISERFS_FS is not set
-CONFIG_JFS_FS=m
-# CONFIG_JFS_POSIX_ACL is not set
-# CONFIG_JFS_DEBUG is not set
-# CONFIG_JFS_STATISTICS is not set
-CONFIG_XFS_FS=m
-# CONFIG_XFS_RT is not set
-# CONFIG_XFS_QUOTA is not set
-# CONFIG_XFS_SECURITY is not set
-# CONFIG_XFS_POSIX_ACL is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-CONFIG_ISO9660_FS=y
-CONFIG_JOLIET=y
-# CONFIG_ZISOFS is not set
-CONFIG_UDF_FS=m
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=m
-CONFIG_MSDOS_FS=m
-CONFIG_VFAT_FS=m
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_DEVPTS_FS_XATTR is not set
-CONFIG_TMPFS=y
-# CONFIG_HUGETLBFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-CONFIG_UFS_FS=m
-# CONFIG_UFS_FS_WRITE is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-CONFIG_NFS_V4=y
-CONFIG_NFS_DIRECTIO=y
-CONFIG_NFSD=m
-CONFIG_NFSD_V3=y
-CONFIG_NFSD_V4=y
-CONFIG_NFSD_TCP=y
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_EXPORTFS=m
-CONFIG_SUNRPC=y
-CONFIG_SUNRPC_GSS=y
-CONFIG_RPCSEC_GSS_KRB5=y
-CONFIG_SMB_FS=m
-CONFIG_SMB_NLS_DEFAULT=y
-CONFIG_SMB_NLS_REMOTE="cp437"
-CONFIG_CIFS=m
-# CONFIG_CIFS_STATS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS=y
-CONFIG_NLS_DEFAULT="iso8859-1"
-CONFIG_NLS_CODEPAGE_437=m
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-CONFIG_NLS_CODEPAGE_850=m
-CONFIG_NLS_CODEPAGE_852=m
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-CONFIG_NLS_CODEPAGE_863=m
-# CONFIG_NLS_CODEPAGE_864 is not set
-CONFIG_NLS_CODEPAGE_865=m
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-# CONFIG_NLS_CODEPAGE_932 is not set
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-CONFIG_NLS_ISO8859_1=m
-CONFIG_NLS_ISO8859_2=m
-CONFIG_NLS_ISO8859_3=m
-CONFIG_NLS_ISO8859_4=m
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-CONFIG_NLS_ISO8859_15=m
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-CONFIG_NLS_UTF8=m
-
-#
-# Profiling support
-#
-CONFIG_PROFILING=y
-CONFIG_OPROFILE=m
-
-#
-# Kernel hacking
-#
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SLAB is not set
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_FRAME_POINTER is not set
-# CONFIG_DEBUG_INFO is not set
-
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_NULL=m
-CONFIG_CRYPTO_MD4=m
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_SHA1=m
-CONFIG_CRYPTO_SHA256=m
-CONFIG_CRYPTO_SHA512=m
-CONFIG_CRYPTO_DES=y
-CONFIG_CRYPTO_BLOWFISH=m
-CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_SERPENT=m
-CONFIG_CRYPTO_AES=m
-CONFIG_CRYPTO_CAST5=m
-CONFIG_CRYPTO_CAST6=m
-# CONFIG_CRYPTO_ARC4 is not set
-CONFIG_CRYPTO_DEFLATE=m
-# CONFIG_CRYPTO_MICHAEL_MIC is not set
-CONFIG_CRYPTO_CRC32C=m
-CONFIG_CRYPTO_TEST=m
-
-#
-# Library routines
-#
-CONFIG_CRC32=y
-CONFIG_LIBCRC32C=m
-CONFIG_ZLIB_INFLATE=m
-CONFIG_ZLIB_DEFLATE=m
+++ /dev/null
-/*
- * Debugging versions of SMP locking primitives.
- *
- * Copyright (C) 2004 Thibaut VARENE <varenet@esiee.fr>
- *
- * Some code stollen from alpha & sparc64 ;)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <asm/system.h>
-#include <asm/hardirq.h> /* in_interrupt() */
-
-#undef INIT_STUCK
-#define INIT_STUCK 1L << 30
-
-#ifdef CONFIG_DEBUG_SPINLOCK
-
-void _dbg_spin_lock(spinlock_t * lock, const char *base_file, int line_no)
-{
- volatile unsigned int *a;
- long stuck = INIT_STUCK;
- void *inline_pc = __builtin_return_address(0);
- unsigned long started = jiffies;
- int printed = 0;
- int cpu = smp_processor_id();
-
-try_again:
-
- /* Do the actual locking */
- /* <T-Bone> ggg: we can't get stuck on the outter loop?
- * <ggg> T-Bone: We can hit the outer loop
- * alot if multiple CPUs are constantly racing for a lock
- * and the backplane is NOT fair about which CPU sees
- * the update first. But it won't hang since every failed
- * attempt will drop us back into the inner loop and
- * decrement `stuck'.
- * <ggg> K-class and some of the others are NOT fair in the HW
- * implementation so we could see false positives.
- * But fixing the lock contention is easier than
- * fixing the HW to be fair.
- * <tausq> __ldcw() returns 1 if we get the lock; otherwise we
- * spin until the value of the lock changes, or we time out.
- */
- a = __ldcw_align(lock);
- while (stuck && (__ldcw(a) == 0))
- while ((*a == 0) && --stuck);
-
- if (unlikely(stuck <= 0)) {
- printk(KERN_WARNING
- "%s:%d: spin_lock(%s/%p) stuck in %s at %p(%d)"
- " owned by %s:%d in %s at %p(%d)\n",
- base_file, line_no, lock->module, lock,
- current->comm, inline_pc, cpu,
- lock->bfile, lock->bline, lock->task->comm,
- lock->previous, lock->oncpu);
- stuck = INIT_STUCK;
- printed = 1;
- goto try_again;
- }
-
- /* Exiting. Got the lock. */
- lock->oncpu = cpu;
- lock->previous = inline_pc;
- lock->task = current;
- lock->bfile = (char *)base_file;
- lock->bline = line_no;
-
- if (unlikely(printed)) {
- printk(KERN_WARNING
- "%s:%d: spin_lock grabbed in %s at %p(%d) %ld ticks\n",
- base_file, line_no, current->comm, inline_pc,
- cpu, jiffies - started);
- }
-}
-
-void _dbg_spin_unlock(spinlock_t * lock, const char *base_file, int line_no)
-{
- CHECK_LOCK(lock);
- volatile unsigned int *a = __ldcw_align(lock);
- if (unlikely((*a != 0) && lock->babble)) {
- lock->babble--;
- printk(KERN_WARNING
- "%s:%d: spin_unlock(%s:%p) not locked\n",
- base_file, line_no, lock->module, lock);
- }
- *a = 1;
-}
-
-int _dbg_spin_trylock(spinlock_t * lock, const char *base_file, int line_no)
-{
- int ret;
- volatile unsigned int *a = __ldcw_align(lock);
- if ((ret = (__ldcw(a) != 0))) {
- lock->oncpu = smp_processor_id();
- lock->previous = __builtin_return_address(0);
- lock->task = current;
- } else {
- lock->bfile = (char *)base_file;
- lock->bline = line_no;
- }
- return ret;
-}
-
-#endif /* CONFIG_DEBUG_SPINLOCK */
-
-#ifdef CONFIG_DEBUG_RWLOCK
-
-/* Interrupts trouble detailed explanation, thx Grant:
- *
- * o writer (wants to modify data) attempts to acquire the rwlock
- * o He gets the write lock.
- * o Interupts are still enabled, we take an interrupt with the
- * write still holding the lock.
- * o interrupt handler tries to acquire the rwlock for read.
- * o deadlock since the writer can't release it at this point.
- *
- * In general, any use of spinlocks that competes between "base"
- * level and interrupt level code will risk deadlock. Interrupts
- * need to be disabled in the base level routines to avoid it.
- * Or more precisely, only the IRQ the base level routine
- * is competing with for the lock. But it's more efficient/faster
- * to just disable all interrupts on that CPU to guarantee
- * once it gets the lock it can release it quickly too.
- */
-
-void _dbg_write_lock(rwlock_t *rw, const char *bfile, int bline)
-{
- void *inline_pc = __builtin_return_address(0);
- unsigned long started = jiffies;
- long stuck = INIT_STUCK;
- int printed = 0;
- int cpu = smp_processor_id();
-
- if(unlikely(in_interrupt())) { /* acquiring write lock in interrupt context, bad idea */
- printk(KERN_WARNING "write_lock caller: %s:%d, IRQs enabled,\n", bfile, bline);
- BUG();
- }
-
- /* Note: if interrupts are disabled (which is most likely), the printk
- will never show on the console. We might need a polling method to flush
- the dmesg buffer anyhow. */
-
-retry:
- _raw_spin_lock(&rw->lock);
-
- if(rw->counter != 0) {
- /* this basically never happens */
- _raw_spin_unlock(&rw->lock);
-
- stuck--;
- if ((unlikely(stuck <= 0)) && (rw->counter < 0)) {
- printk(KERN_WARNING
- "%s:%d: write_lock stuck on writer"
- " in %s at %p(%d) %ld ticks\n",
- bfile, bline, current->comm, inline_pc,
- cpu, jiffies - started);
- stuck = INIT_STUCK;
- printed = 1;
- }
- else if (unlikely(stuck <= 0)) {
- printk(KERN_WARNING
- "%s:%d: write_lock stuck on reader"
- " in %s at %p(%d) %ld ticks\n",
- bfile, bline, current->comm, inline_pc,
- cpu, jiffies - started);
- stuck = INIT_STUCK;
- printed = 1;
- }
-
- while(rw->counter != 0);
-
- goto retry;
- }
-
- /* got it. now leave without unlocking */
- rw->counter = -1; /* remember we are locked */
-
- if (unlikely(printed)) {
- printk(KERN_WARNING
- "%s:%d: write_lock grabbed in %s at %p(%d) %ld ticks\n",
- bfile, bline, current->comm, inline_pc,
- cpu, jiffies - started);
- }
-}
-
-void _dbg_read_lock(rwlock_t * rw, const char *bfile, int bline)
-{
-#if 0
- void *inline_pc = __builtin_return_address(0);
- unsigned long started = jiffies;
- int cpu = smp_processor_id();
-#endif
- unsigned long flags;
-
- local_irq_save(flags);
- _raw_spin_lock(&rw->lock);
-
- rw->counter++;
-#if 0
- printk(KERN_WARNING
- "%s:%d: read_lock grabbed in %s at %p(%d) %ld ticks\n",
- bfile, bline, current->comm, inline_pc,
- cpu, jiffies - started);
-#endif
- _raw_spin_unlock(&rw->lock);
- local_irq_restore(flags);
-}
-
-#endif /* CONFIG_DEBUG_RWLOCK */
+++ /dev/null
-/*
- * arch/ppc/boot/simple/mpc52xx_tty.c
- *
- * Minimal serial functions needed to send messages out a MPC52xx
- * Programmable Serial Controller (PSC).
- *
- * Author: Dale Farnsworth <dfarnsworth@mvista.com>
- *
- * 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is licensed
- * "as is" without any warranty of any kind, whether express or implied.
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <asm/uaccess.h>
-#include <asm/mpc52xx.h>
-#include <asm/mpc52xx_psc.h>
-#include <asm/serial.h>
-#include <asm/time.h>
-
-#if MPC52xx_PF_CONSOLE_PORT == 0
-#define MPC52xx_CONSOLE MPC52xx_PSC1
-#define MPC52xx_PSC_CONFIG_SHIFT 0
-#elif MPC52xx_PF_CONSOLE_PORT == 1
-#define MPC52xx_CONSOLE MPC52xx_PSC2
-#define MPC52xx_PSC_CONFIG_SHIFT 4
-#elif MPC52xx_PF_CONSOLE_PORT == 2
-#define MPC52xx_CONSOLE MPC52xx_PSC3
-#define MPC52xx_PSC_CONFIG_SHIFT 8
-#else
-#error "MPC52xx_PF_CONSOLE_PORT not defined"
-#endif
-
-static struct mpc52xx_psc *psc = (struct mpc52xx_psc *)MPC52xx_CONSOLE;
-
-/* The decrementer counts at the system bus clock frequency
- * divided by four. The most accurate time base is connected to the
- * rtc. We read the decrementer change during one rtc tick (one second)
- * and multiply by 4 to get the system bus clock frequency.
- */
-int
-mpc52xx_ipbfreq(void)
-{
- struct mpc52xx_rtc *rtc = (struct mpc52xx_rtc*)MPC52xx_RTC;
- struct mpc52xx_cdm *cdm = (struct mpc52xx_cdm*)MPC52xx_CDM;
- int current_time, previous_time;
- int tbl_start, tbl_end;
- int xlbfreq, ipbfreq;
-
- out_be32(&rtc->dividers, 0x8f1f0000); /* Set RTC 64x faster */
- previous_time = in_be32(&rtc->time);
- while ((current_time = in_be32(&rtc->time)) == previous_time) ;
- tbl_start = get_tbl();
- previous_time = current_time;
- while ((current_time = in_be32(&rtc->time)) == previous_time) ;
- tbl_end = get_tbl();
- out_be32(&rtc->dividers, 0xffff0000); /* Restore RTC */
-
- xlbfreq = (tbl_end - tbl_start) << 8;
- ipbfreq = (in_8(&cdm->ipb_clk_sel) & 1) ? xlbfreq / 2 : xlbfreq;
-
- return ipbfreq;
-}
-
-unsigned long
-serial_init(int ignored, void *ignored2)
-{
- struct mpc52xx_gpio *gpio = (struct mpc52xx_gpio *)MPC52xx_GPIO;
- int divisor;
- int mode1;
- int mode2;
- u32 val32;
-
- static int been_here = 0;
-
- if (been_here)
- return 0;
-
- been_here = 1;
-
- val32 = in_be32(&gpio->port_config);
- val32 &= ~(0x7 << MPC52xx_PSC_CONFIG_SHIFT);
- val32 |= MPC52xx_GPIO_PSC_CONFIG_UART_WITHOUT_CD
- << MPC52xx_PSC_CONFIG_SHIFT;
- out_be32(&gpio->port_config, val32);
-
- out_8(&psc->command, MPC52xx_PSC_RST_TX
- | MPC52xx_PSC_RX_DISABLE | MPC52xx_PSC_TX_ENABLE);
- out_8(&psc->command, MPC52xx_PSC_RST_RX);
-
- out_be32(&psc->sicr, 0x0);
- out_be16(&psc->mpc52xx_psc_clock_select, 0xdd00);
- out_be16(&psc->tfalarm, 0xf8);
-
- out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1
- | MPC52xx_PSC_RX_ENABLE
- | MPC52xx_PSC_TX_ENABLE);
-
- divisor = ((mpc52xx_ipbfreq()
- / (CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD * 16)) + 1) >> 1;
-
- mode1 = MPC52xx_PSC_MODE_8_BITS | MPC52xx_PSC_MODE_PARNONE
- | MPC52xx_PSC_MODE_ERR;
- mode2 = MPC52xx_PSC_MODE_ONE_STOP;
-
- out_8(&psc->ctur, divisor>>8);
- out_8(&psc->ctlr, divisor);
- out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1);
- out_8(&psc->mode, mode1);
- out_8(&psc->mode, mode2);
-
- return 0; /* ignored */
-}
-
-void
-serial_putc(void *ignored, const char c)
-{
- serial_init(0, 0);
-
- while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP)) ;
- out_8(&psc->mpc52xx_psc_buffer_8, c);
- while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP)) ;
-}
-
-char
-serial_getc(void *ignored)
-{
- while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_RXRDY)) ;
-
- return in_8(&psc->mpc52xx_psc_buffer_8);
-}
-
-int
-serial_tstc(void *ignored)
-{
- return (in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_RXRDY) != 0;
-}
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_MMU=y
-CONFIG_RWSEM_XCHGADD_ALGORITHM=y
-CONFIG_HAVE_DEC_LOCK=y
-CONFIG_PPC=y
-CONFIG_PPC32=y
-CONFIG_GENERIC_NVRAM=y
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
-CONFIG_STANDALONE=y
-CONFIG_BROKEN_ON_SMP=y
-
-#
-# General setup
-#
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-# CONFIG_POSIX_MQUEUE is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-# CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_EMBEDDED=y
-# CONFIG_KALLSYMS is not set
-CONFIG_FUTEX=y
-# CONFIG_EPOLL is not set
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-
-#
-# Loadable module support
-#
-# CONFIG_MODULES is not set
-
-#
-# Processor
-#
-CONFIG_6xx=y
-# CONFIG_40x is not set
-# CONFIG_44x is not set
-# CONFIG_POWER3 is not set
-# CONFIG_POWER4 is not set
-# CONFIG_8xx is not set
-# CONFIG_CPU_FREQ is not set
-CONFIG_EMBEDDEDBOOT=y
-CONFIG_PPC_STD_MMU=y
-
-#
-# Platform options
-#
-# CONFIG_PPC_MULTIPLATFORM is not set
-# CONFIG_APUS is not set
-# CONFIG_WILLOW is not set
-# CONFIG_PCORE is not set
-# CONFIG_POWERPMC250 is not set
-# CONFIG_EV64260 is not set
-# CONFIG_SPRUCE is not set
-# CONFIG_LOPEC is not set
-# CONFIG_MCPN765 is not set
-# CONFIG_MVME5100 is not set
-# CONFIG_PPLUS is not set
-# CONFIG_PRPMC750 is not set
-# CONFIG_PRPMC800 is not set
-# CONFIG_SANDPOINT is not set
-# CONFIG_ADIR is not set
-# CONFIG_K2 is not set
-# CONFIG_PAL4 is not set
-# CONFIG_GEMINI is not set
-# CONFIG_EST8260 is not set
-# CONFIG_SBC82xx is not set
-# CONFIG_SBS8260 is not set
-# CONFIG_RPX6 is not set
-# CONFIG_TQM8260 is not set
-CONFIG_ADS8272=y
-CONFIG_PQ2ADS=y
-CONFIG_8260=y
-CONFIG_8272=y
-CONFIG_CPM2=y
-# CONFIG_PC_KEYBOARD is not set
-CONFIG_SERIAL_CONSOLE=y
-# CONFIG_SMP is not set
-# CONFIG_PREEMPT is not set
-# CONFIG_HIGHMEM is not set
-CONFIG_KERNEL_ELF=y
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-# CONFIG_CMDLINE_BOOL is not set
-
-#
-# Bus options
-#
-CONFIG_PCI=y
-CONFIG_PCI_DOMAINS=y
-# CONFIG_PCI_LEGACY_PROC is not set
-# CONFIG_PCI_NAMES is not set
-
-#
-# Advanced setup
-#
-# CONFIG_ADVANCED_OPTIONS is not set
-
-#
-# Default settings for advanced configuration options are used
-#
-CONFIG_HIGHMEM_START=0xfe000000
-CONFIG_LOWMEM_SIZE=0x30000000
-CONFIG_KERNEL_START=0xc0000000
-CONFIG_TASK_SIZE=0x80000000
-CONFIG_BOOT_LOAD=0x00400000
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_CARMEL is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=32768
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_LBD is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Macintosh device drivers
-#
-
-#
-# Networking support
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
-CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_IP_MROUTE is not set
-# CONFIG_ARPD is not set
-CONFIG_SYN_COOKIES=y
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_IPV6 is not set
-# CONFIG_NETFILTER is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_FASTROUTE is not set
-# CONFIG_NET_HW_FLOWCONTROL is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
-# CONFIG_OAKNET is not set
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_NET_VENDOR_3COM is not set
-
-#
-# Tulip family network device support
-#
-# CONFIG_NET_TULIP is not set
-# CONFIG_HP100 is not set
-# CONFIG_NET_PCI is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_TIGON3 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-# CONFIG_SERIO is not set
-# CONFIG_SERIO_I8042 is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_QIC02_TAPE is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_NVRAM is not set
-CONFIG_GEN_RTC=y
-# CONFIG_GEN_RTC_X is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# Misc devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB is not set
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_FAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_DEVPTS_FS_XATTR is not set
-CONFIG_TMPFS=y
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-# CONFIG_NFS_V3 is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-# CONFIG_EXPORTFS is not set
-CONFIG_SUNRPC=y
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-# CONFIG_MSDOS_PARTITION is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_NEC98_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-# CONFIG_SCC_ENET is not set
-CONFIG_FEC_ENET=y
-# CONFIG_USE_MDIO is not set
-
-#
-# CPM2 Options
-#
-CONFIG_SCC_CONSOLE=y
-CONFIG_FCC1_ENET=y
-# CONFIG_FCC2_ENET is not set
-# CONFIG_FCC3_ENET is not set
-
-#
-# Library routines
-#
-# CONFIG_CRC32 is not set
-# CONFIG_LIBCRC32C is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_DEBUG_KERNEL is not set
-# CONFIG_KGDB_CONSOLE is not set
-
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_MMU=y
-CONFIG_RWSEM_XCHGADD_ALGORITHM=y
-CONFIG_HAVE_DEC_LOCK=y
-CONFIG_PPC=y
-CONFIG_PPC32=y
-CONFIG_GENERIC_NVRAM=y
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
-CONFIG_STANDALONE=y
-CONFIG_BROKEN_ON_SMP=y
-#
-# General setup
-#
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-# CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-# CONFIG_EMBEDDED is not set
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-CONFIG_OBSOLETE_MODPARM=y
-CONFIG_MODVERSIONS=y
-CONFIG_KMOD=y
-#
-# Processor
-#
-CONFIG_6xx=y
-# CONFIG_40x is not set
-# CONFIG_44x is not set
-# CONFIG_POWER3 is not set
-# CONFIG_POWER4 is not set
-# CONFIG_8xx is not set
-# CONFIG_E500 is not set
-# CONFIG_ALTIVEC is not set
-# CONFIG_TAU is not set
-# CONFIG_CPU_FREQ is not set
-CONFIG_FSL_OCP=y
-CONFIG_PPC_STD_MMU=y
-#
-# Platform options
-#
-# CONFIG_PPC_MULTIPLATFORM is not set
-# CONFIG_APUS is not set
-# CONFIG_WILLOW is not set
-# CONFIG_PCORE is not set
-# CONFIG_POWERPMC250 is not set
-# CONFIG_EV64260 is not set
-# CONFIG_SPRUCE is not set
-# CONFIG_LOPEC is not set
-# CONFIG_MCPN765 is not set
-# CONFIG_MVME5100 is not set
-# CONFIG_PPLUS is not set
-# CONFIG_PRPMC750 is not set
-# CONFIG_PRPMC800 is not set
-# CONFIG_SANDPOINT is not set
-# CONFIG_ADIR is not set
-# CONFIG_K2 is not set
-# CONFIG_PAL4 is not set
-# CONFIG_GEMINI is not set
-# CONFIG_EST8260 is not set
-# CONFIG_SBC82xx is not set
-# CONFIG_SBS8260 is not set
-# CONFIG_RPX6 is not set
-# CONFIG_TQM8260 is not set
-# CONFIG_ADS8272 is not set
-CONFIG_LITE5200=y
-CONFIG_PPC_MPC52xx=y
-# CONFIG_SMP is not set
-# CONFIG_PREEMPT is not set
-# CONFIG_HIGHMEM is not set
-CONFIG_KERNEL_ELF=y
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-CONFIG_CMDLINE_BOOL=y
-CONFIG_CMDLINE="console=ttyS0 root=/dev/ram0 rw"
-#
-# Bus options
-#
-CONFIG_GENERIC_ISA_DMA=y
-CONFIG_PCI=y
-CONFIG_PCI_DOMAINS=y
-# CONFIG_PCI_LEGACY_PROC is not set
-# CONFIG_PCI_NAMES is not set
-#
-# Advanced setup
-#
-CONFIG_ADVANCED_OPTIONS=y
-CONFIG_HIGHMEM_START=0xfe000000
-# CONFIG_LOWMEM_SIZE_BOOL is not set
-CONFIG_LOWMEM_SIZE=0x30000000
-# CONFIG_KERNEL_START_BOOL is not set
-CONFIG_KERNEL_START=0xc0000000
-# CONFIG_TASK_SIZE_BOOL is not set
-CONFIG_TASK_SIZE=0x80000000
-# CONFIG_BOOT_LOAD_BOOL is not set
-CONFIG_BOOT_LOAD=0x00800000
-#
-# Device Drivers
-#
-#
-# Generic Driver Options
-#
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_DEBUG_DRIVER is not set
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-#
-# Plug and Play support
-#
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_SX8 is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_LBD is not set
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-#
-# Fusion MPT device support
-#
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-#
-# Macintosh device drivers
-#
-#
-# Networking support
-#
-# CONFIG_NET is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-#
-# ISDN subsystem
-#
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-#
-# Input device support
-#
-CONFIG_INPUT=y
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-CONFIG_INPUT_EVDEV=y
-CONFIG_INPUT_EVBUG=y
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_CT82C710 is not set
-# CONFIG_SERIO_PCIPS2 is not set
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_SERIAL_NONSTANDARD is not set
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_SERIAL_MPC52xx=y
-CONFIG_SERIAL_MPC52xx_CONSOLE=y
-CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD=9600
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_QIC02_TAPE is not set
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_NVRAM is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-#
-# Misc devices
-#
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-#
-# Digital Video Broadcasting Devices
-#
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-#
-# Console display driver support
-#
-CONFIG_VGA_CONSOLE=y
-# CONFIG_MDA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE=y
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-#
-# USB support
-#
-# CONFIG_USB is not set
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_FAT_FS is not set
-# CONFIG_NTFS_FS is not set
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_DEVPTS_FS_XATTR is not set
-CONFIG_TMPFS=y
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-#
-# Native Language Support
-#
-CONFIG_NLS=y
-CONFIG_NLS_DEFAULT="iso8859-1"
-# CONFIG_NLS_CODEPAGE_437 is not set
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-# CONFIG_NLS_CODEPAGE_850 is not set
-# CONFIG_NLS_CODEPAGE_852 is not set
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-# CONFIG_NLS_CODEPAGE_863 is not set
-# CONFIG_NLS_CODEPAGE_864 is not set
-# CONFIG_NLS_CODEPAGE_865 is not set
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-# CONFIG_NLS_CODEPAGE_932 is not set
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-# CONFIG_NLS_ASCII is not set
-CONFIG_NLS_ISO8859_1=m
-# CONFIG_NLS_ISO8859_2 is not set
-# CONFIG_NLS_ISO8859_3 is not set
-# CONFIG_NLS_ISO8859_4 is not set
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-# CONFIG_NLS_ISO8859_15 is not set
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-# CONFIG_NLS_UTF8 is not set
-#
-# Library routines
-#
-# CONFIG_CRC16 is not set
-# CONFIG_CRC32 is not set
-# CONFIG_LIBCRC32C is not set
-#
-# Profiling support
-#
-# CONFIG_PROFILING is not set
-#
-# Kernel hacking
-#
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SLAB is not set
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_DEBUG_SPINLOCK is not set
-CONFIG_DEBUG_SPINLOCK_SLEEP=y
-# CONFIG_KGDB is not set
-# CONFIG_XMON is not set
-# CONFIG_BDI_SWITCH is not set
-CONFIG_DEBUG_INFO=y
-CONFIG_SERIAL_TEXT_DEBUG=y
-CONFIG_PPC_OCP=y
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_MMU=y
-CONFIG_RWSEM_XCHGADD_ALGORITHM=y
-CONFIG_HAVE_DEC_LOCK=y
-CONFIG_PPC=y
-CONFIG_PPC32=y
-CONFIG_GENERIC_NVRAM=y
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
-CONFIG_STANDALONE=y
-CONFIG_BROKEN_ON_SMP=y
-
-#
-# General setup
-#
-# CONFIG_SWAP is not set
-CONFIG_SYSVIPC=y
-# CONFIG_POSIX_MQUEUE is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-# CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_EMBEDDED=y
-# CONFIG_KALLSYMS is not set
-CONFIG_FUTEX=y
-# CONFIG_EPOLL is not set
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-
-#
-# Loadable module support
-#
-# CONFIG_MODULES is not set
-
-#
-# Processor
-#
-CONFIG_6xx=y
-# CONFIG_40x is not set
-# CONFIG_44x is not set
-# CONFIG_POWER3 is not set
-# CONFIG_POWER4 is not set
-# CONFIG_8xx is not set
-# CONFIG_E500 is not set
-# CONFIG_CPU_FREQ is not set
-CONFIG_EMBEDDEDBOOT=y
-CONFIG_PPC_STD_MMU=y
-
-#
-# Platform options
-#
-# CONFIG_PPC_MULTIPLATFORM is not set
-# CONFIG_APUS is not set
-# CONFIG_WILLOW is not set
-# CONFIG_PCORE is not set
-# CONFIG_POWERPMC250 is not set
-# CONFIG_EV64260 is not set
-# CONFIG_SPRUCE is not set
-# CONFIG_LOPEC is not set
-# CONFIG_MCPN765 is not set
-# CONFIG_MVME5100 is not set
-# CONFIG_PPLUS is not set
-# CONFIG_PRPMC750 is not set
-# CONFIG_PRPMC800 is not set
-# CONFIG_SANDPOINT is not set
-# CONFIG_ADIR is not set
-# CONFIG_K2 is not set
-# CONFIG_PAL4 is not set
-# CONFIG_GEMINI is not set
-# CONFIG_EST8260 is not set
-# CONFIG_SBC82xx is not set
-# CONFIG_SBS8260 is not set
-CONFIG_RPX8260=y
-# CONFIG_TQM8260 is not set
-# CONFIG_ADS8272 is not set
-CONFIG_8260=y
-CONFIG_CPM2=y
-# CONFIG_PC_KEYBOARD is not set
-# CONFIG_SMP is not set
-# CONFIG_PREEMPT is not set
-# CONFIG_HIGHMEM is not set
-CONFIG_KERNEL_ELF=y
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-# CONFIG_CMDLINE_BOOL is not set
-
-#
-# Bus options
-#
-# CONFIG_PCI is not set
-# CONFIG_PCI_DOMAINS is not set
-
-#
-# Advanced setup
-#
-# CONFIG_ADVANCED_OPTIONS is not set
-
-#
-# Default settings for advanced configuration options are used
-#
-CONFIG_HIGHMEM_START=0xfe000000
-CONFIG_LOWMEM_SIZE=0x30000000
-CONFIG_KERNEL_START=0xc0000000
-CONFIG_TASK_SIZE=0x80000000
-CONFIG_BOOT_LOAD=0x00400000
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_LBD is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-
-#
-# Macintosh device drivers
-#
-
-#
-# Networking support
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
-CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_PNP=y
-# CONFIG_IP_PNP_DHCP is not set
-CONFIG_IP_PNP_BOOTP=y
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_IP_MROUTE is not set
-# CONFIG_ARPD is not set
-CONFIG_SYN_COOKIES=y
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_IPV6 is not set
-# CONFIG_NETFILTER is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_FASTROUTE is not set
-# CONFIG_NET_HW_FLOWCONTROL is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-# CONFIG_NET_CLS_ROUTE is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
-# CONFIG_OAKNET is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-
-#
-# Ethernet (10000 Mbit)
-#
-
-#
-# Token Ring devices
-#
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-# CONFIG_INPUT is not set
-
-#
-# Userland interfaces
-#
-
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-# CONFIG_SERIO is not set
-# CONFIG_SERIO_I8042 is not set
-
-#
-# Input Device Drivers
-#
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_SERIAL_CPM=y
-CONFIG_SERIAL_CPM_CONSOLE=y
-# CONFIG_SERIAL_CPM_SCC1 is not set
-# CONFIG_SERIAL_CPM_SCC2 is not set
-# CONFIG_SERIAL_CPM_SCC3 is not set
-# CONFIG_SERIAL_CPM_SCC4 is not set
-CONFIG_SERIAL_CPM_SMC1=y
-# CONFIG_SERIAL_CPM_SMC2 is not set
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_QIC02_TAPE is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_NVRAM is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# Dallas's 1-wire bus
-#
-# CONFIG_W1 is not set
-
-#
-# Misc devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_DEVPTS_FS_XATTR is not set
-CONFIG_TMPFS=y
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-# CONFIG_EXPORTFS is not set
-CONFIG_SUNRPC=y
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-# CONFIG_MSDOS_PARTITION is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-# CONFIG_SCC_ENET is not set
-CONFIG_FEC_ENET=y
-# CONFIG_USE_MDIO is not set
-
-#
-# CPM2 Options
-#
-# CONFIG_FCC1_ENET is not set
-# CONFIG_FCC2_ENET is not set
-CONFIG_FCC3_ENET=y
-
-#
-# Library routines
-#
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC32 is not set
-# CONFIG_LIBCRC32C is not set
-
-#
-# Profiling support
-#
-# CONFIG_PROFILING is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_DEBUG_KERNEL is not set
-# CONFIG_KGDB_CONSOLE is not set
-
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
+++ /dev/null
-/*
- * arch/ppc/kernel/head_e500.S
- *
- * Kernel execution entry point code.
- *
- * Copyright (c) 1995-1996 Gary Thomas <gdt@linuxppc.org>
- * Initial PowerPC version.
- * Copyright (c) 1996 Cort Dougan <cort@cs.nmt.edu>
- * Rewritten for PReP
- * Copyright (c) 1996 Paul Mackerras <paulus@cs.anu.edu.au>
- * Low-level exception handers, MMU support, and rewrite.
- * Copyright (c) 1997 Dan Malek <dmalek@jlc.net>
- * PowerPC 8xx modifications.
- * Copyright (c) 1998-1999 TiVo, Inc.
- * PowerPC 403GCX modifications.
- * Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
- * PowerPC 403GCX/405GP modifications.
- * Copyright 2000 MontaVista Software Inc.
- * PPC405 modifications
- * PowerPC 403GCX/405GP modifications.
- * Author: MontaVista Software, Inc.
- * frank_rowand@mvista.com or source@mvista.com
- * debbie_chu@mvista.com
- * Copyright 2002-2004 MontaVista Software, Inc.
- * PowerPC 44x support, Matt Porter <mporter@kernel.crashing.org>
- * Copyright 2004 Freescale Semiconductor, Inc
- * PowerPC e500 modifications, Kumar Gala <kumar.gala@freescale.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/cputable.h>
-#include <asm/thread_info.h>
-#include <asm/ppc_asm.h>
-#include <asm/offsets.h>
-
-/*
- * Macros
- */
-
-#define SET_IVOR(vector_number, vector_label) \
- li r26,vector_label@l; \
- mtspr SPRN_IVOR##vector_number,r26; \
- sync
-
-/* As with the other PowerPC ports, it is expected that when code
- * execution begins here, the following registers contain valid, yet
- * optional, information:
- *
- * r3 - Board info structure pointer (DRAM, frequency, MAC address, etc.)
- * r4 - Starting address of the init RAM disk
- * r5 - Ending address of the init RAM disk
- * r6 - Start of kernel command line string (e.g. "mem=128")
- * r7 - End of kernel command line string
- *
- */
- .text
-_GLOBAL(_stext)
-_GLOBAL(_start)
- /*
- * Reserve a word at a fixed location to store the address
- * of abatron_pteptrs
- */
- nop
-/*
- * Save parameters we are passed
- */
- mr r31,r3
- mr r30,r4
- mr r29,r5
- mr r28,r6
- mr r27,r7
- li r24,0 /* CPU number */
-
-/* We try to not make any assumptions about how the boot loader
- * setup or used the TLBs. We invalidate all mappings from the
- * boot loader and load a single entry in TLB1[0] to map the
- * first 16M of kernel memory. Any boot info passed from the
- * bootloader needs to live in this first 16M.
- *
- * Requirement on bootloader:
- * - The page we're executing in needs to reside in TLB1 and
- * have IPROT=1. If not an invalidate broadcast could
- * evict the entry we're currently executing in.
- *
- * r3 = Index of TLB1 were executing in
- * r4 = Current MSR[IS]
- * r5 = Index of TLB1 temp mapping
- *
- * Later in mapin_ram we will correctly map lowmem, and resize TLB1[0]
- * if needed
- */
-
-/* 1. Find the index of the entry we're executing in */
- bl invstr /* Find our address */
-invstr: mflr r6 /* Make it accessible */
- mfmsr r7
- rlwinm r4,r7,27,31,31 /* extract MSR[IS] */
- mfspr r7, SPRN_PID0
- slwi r7,r7,16
- or r7,r7,r4
- mtspr SPRN_MAS6,r7
- tlbsx 0,r6 /* search MSR[IS], SPID=PID0 */
- mfspr r7,SPRN_MAS1
- andis. r7,r7,MAS1_VALID@h
- bne match_TLB
- mfspr r7,SPRN_PID1
- slwi r7,r7,16
- or r7,r7,r4
- mtspr SPRN_MAS6,r7
- tlbsx 0,r6 /* search MSR[IS], SPID=PID1 */
- mfspr r7,SPRN_MAS1
- andis. r7,r7,MAS1_VALID@h
- bne match_TLB
- mfspr r7, SPRN_PID2
- slwi r7,r7,16
- or r7,r7,r4
- mtspr SPRN_MAS6,r7
- tlbsx 0,r6 /* Fall through, we had to match */
-match_TLB:
- mfspr r7,SPRN_MAS0
- rlwinm r3,r7,16,28,31 /* Extract MAS0(Entry) */
-
- mfspr r7,SPRN_MAS1 /* Insure IPROT set */
- oris r7,r7,MAS1_IPROT@h
- mtspr SPRN_MAS1,r7
- tlbwe
-
-/* 2. Invalidate all entries except the entry we're executing in */
- mfspr r9,SPRN_TLB1CFG
- andi. r9,r9,0xfff
- li r6,0 /* Set Entry counter to 0 */
-1: lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r6,16,12,15 /* Setup MAS0 = TLBSEL | ESEL(r6) */
- mtspr SPRN_MAS0,r7
- tlbre
- mfspr r7,SPRN_MAS1
- rlwinm r7,r7,0,2,31 /* Clear MAS1 Valid and IPROT */
- cmpw r3,r6
- beq skpinv /* Dont update the current execution TLB */
- mtspr SPRN_MAS1,r7
- tlbwe
- isync
-skpinv: addi r6,r6,1 /* Increment */
- cmpw r6,r9 /* Are we done? */
- bne 1b /* If not, repeat */
-
- /* Invalidate TLB0 */
- li r6,0x04
- tlbivax 0,r6
-#ifdef CONFIG_SMP
- tlbsync
-#endif
- /* Invalidate TLB1 */
- li r6,0x0c
- tlbivax 0,r6
-#ifdef CONFIG_SMP
- tlbsync
-#endif
- msync
-
-/* 3. Setup a temp mapping and jump to it */
- andi. r5, r3, 0x1 /* Find an entry not used and is non-zero */
- addi r5, r5, 0x1
- lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r3,16,12,15 /* Setup MAS0 = TLBSEL | ESEL(r3) */
- mtspr SPRN_MAS0,r7
- tlbre
-
- /* Just modify the entry ID and EPN for the temp mapping */
- lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r5,16,12,15 /* Setup MAS0 = TLBSEL | ESEL(r5) */
- mtspr SPRN_MAS0,r7
- xori r6,r4,1 /* Setup TMP mapping in the other Address space */
- slwi r6,r6,12
- oris r6,r6,(MAS1_VALID|MAS1_IPROT)@h
- ori r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_4K))@l
- mtspr SPRN_MAS1,r6
- mfspr r6,SPRN_MAS2
- li r7,0 /* temp EPN = 0 */
- rlwimi r7,r6,0,20,31
- mtspr SPRN_MAS2,r7
- tlbwe
-
- xori r6,r4,1
- slwi r6,r6,5 /* setup new context with other address space */
- bl 1f /* Find our address */
-1: mflr r9
- rlwimi r7,r9,0,20,31
- addi r7,r7,24
- mtspr SRR0,r7
- mtspr SRR1,r6
- rfi
-
-/* 4. Clear out PIDs & Search info */
- li r6,0
- mtspr SPRN_PID0,r6
- mtspr SPRN_PID1,r6
- mtspr SPRN_PID2,r6
- mtspr SPRN_MAS6,r6
-
-/* 5. Invalidate mapping we started in */
- lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r3,16,12,15 /* Setup MAS0 = TLBSEL | ESEL(r3) */
- mtspr SPRN_MAS0,r7
- tlbre
- li r6,0
- mtspr SPRN_MAS1,r6
- tlbwe
- /* Invalidate TLB1 */
- li r9,0x0c
- tlbivax 0,r9
-#ifdef CONFIG_SMP
- tlbsync
-#endif
- msync
-
-/* 6. Setup KERNELBASE mapping in TLB1[0] */
- lis r6,0x1000 /* Set MAS0(TLBSEL) = TLB1(1), ESEL = 0 */
- mtspr SPRN_MAS0,r6
- lis r6,(MAS1_VALID|MAS1_IPROT)@h
- ori r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_16M))@l
- mtspr SPRN_MAS1,r6
- li r7,0
- lis r6,KERNELBASE@h
- ori r6,r6,KERNELBASE@l
- rlwimi r6,r7,0,20,31
- mtspr SPRN_MAS2,r6
- li r7,(MAS3_SX|MAS3_SW|MAS3_SR)
- mtspr SPRN_MAS3,r7
- tlbwe
-
-/* 7. Jump to KERNELBASE mapping */
- li r7,0
- bl 1f /* Find our address */
-1: mflr r9
- rlwimi r6,r9,0,20,31
- addi r6,r6,24
- mtspr SRR0,r6
- mtspr SRR1,r7
- rfi /* start execution out of TLB1[0] entry */
-
-/* 8. Clear out the temp mapping */
- lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */
- rlwimi r7,r5,16,12,15 /* Setup MAS0 = TLBSEL | ESEL(r5) */
- mtspr SPRN_MAS0,r7
- tlbre
- mtspr SPRN_MAS1,r8
- tlbwe
- /* Invalidate TLB1 */
- li r9,0x0c
- tlbivax 0,r9
-#ifdef CONFIG_SMP
- tlbsync
-#endif
- msync
-
- /* Establish the interrupt vector offsets */
- SET_IVOR(0, CriticalInput);
- SET_IVOR(1, MachineCheck);
- SET_IVOR(2, DataStorage);
- SET_IVOR(3, InstructionStorage);
- SET_IVOR(4, ExternalInput);
- SET_IVOR(5, Alignment);
- SET_IVOR(6, Program);
- SET_IVOR(7, FloatingPointUnavailable);
- SET_IVOR(8, SystemCall);
- SET_IVOR(9, AuxillaryProcessorUnavailable);
- SET_IVOR(10, Decrementer);
- SET_IVOR(11, FixedIntervalTimer);
- SET_IVOR(12, WatchdogTimer);
- SET_IVOR(13, DataTLBError);
- SET_IVOR(14, InstructionTLBError);
- SET_IVOR(15, Debug);
- SET_IVOR(32, SPEUnavailable);
- SET_IVOR(33, SPEFloatingPointData);
- SET_IVOR(34, SPEFloatingPointRound);
- SET_IVOR(35, PerformanceMonitor);
-
- /* Establish the interrupt vector base */
- lis r4,interrupt_base@h /* IVPR only uses the high 16-bits */
- mtspr SPRN_IVPR,r4
-
- /* Setup the defaults for TLB entries */
- li r2,MAS4_TSIZED(BOOKE_PAGESZ_4K)
- mtspr SPRN_MAS4, r2
-
-#if 0
- /* Enable DOZE */
- mfspr r2,SPRN_HID0
- oris r2,r2,HID0_DOZE@h
- mtspr SPRN_HID0, r2
-#endif
-
- /*
- * This is where the main kernel code starts.
- */
-
- /* ptr to current */
- lis r2,init_task@h
- ori r2,r2,init_task@l
-
- /* ptr to current thread */
- addi r4,r2,THREAD /* init task's THREAD */
- mtspr SPRG3,r4
-
- /* stack */
- lis r1,init_thread_union@h
- ori r1,r1,init_thread_union@l
- li r0,0
- stwu r0,THREAD_SIZE-STACK_FRAME_OVERHEAD(r1)
-
- bl early_init
-
- mfspr r3,SPRN_TLB1CFG
- andi. r3,r3,0xfff
- lis r4,num_tlbcam_entries@ha
- stw r3,num_tlbcam_entries@l(r4)
-/*
- * Decide what sort of machine this is and initialize the MMU.
- */
- mr r3,r31
- mr r4,r30
- mr r5,r29
- mr r6,r28
- mr r7,r27
- bl machine_init
- bl MMU_init
-
- /* Setup PTE pointers for the Abatron bdiGDB */
- lis r6, swapper_pg_dir@h
- ori r6, r6, swapper_pg_dir@l
- lis r5, abatron_pteptrs@h
- ori r5, r5, abatron_pteptrs@l
- lis r4, KERNELBASE@h
- ori r4, r4, KERNELBASE@l
- stw r5, 0(r4) /* Save abatron_pteptrs at a fixed location */
- stw r6, 0(r5)
-
- /* Let's move on */
- lis r4,start_kernel@h
- ori r4,r4,start_kernel@l
- lis r3,MSR_KERNEL@h
- ori r3,r3,MSR_KERNEL@l
- mtspr SRR0,r4
- mtspr SRR1,r3
- rfi /* change context and jump to start_kernel */
-
-/*
- * Interrupt vector entry code
- *
- * The Book E MMUs are always on so we don't need to handle
- * interrupts in real mode as with previous PPC processors. In
- * this case we handle interrupts in the kernel virtual address
- * space.
- *
- * Interrupt vectors are dynamically placed relative to the
- * interrupt prefix as determined by the address of interrupt_base.
- * The interrupt vectors offsets are programmed using the labels
- * for each interrupt vector entry.
- *
- * Interrupt vectors must be aligned on a 16 byte boundary.
- * We align on a 32 byte cache line boundary for good measure.
- */
-
-#define NORMAL_EXCEPTION_PROLOG \
- mtspr SPRN_SPRG0,r10; /* save two registers to work with */\
- mtspr SPRN_SPRG1,r11; \
- mtspr SPRN_SPRG4W,r1; \
- mfcr r10; /* save CR in r10 for now */\
- mfspr r11,SPRN_SRR1; /* check whether user or kernel */\
- andi. r11,r11,MSR_PR; \
- beq 1f; \
- mfspr r1,SPRG3; /* if from user, start at top of */\
- lwz r1,THREAD_INFO-THREAD(r1); /* this thread's kernel stack */\
- addi r1,r1,THREAD_SIZE; \
-1: subi r1,r1,INT_FRAME_SIZE; /* Allocate an exception frame */\
- tophys(r11,r1); \
- stw r10,_CCR(r11); /* save various registers */\
- stw r12,GPR12(r11); \
- stw r9,GPR9(r11); \
- mfspr r10,SPRG0; \
- stw r10,GPR10(r11); \
- mfspr r12,SPRG1; \
- stw r12,GPR11(r11); \
- mflr r10; \
- stw r10,_LINK(r11); \
- mfspr r10,SPRG4R; \
- mfspr r12,SRR0; \
- stw r10,GPR1(r11); \
- mfspr r9,SRR1; \
- stw r10,0(r11); \
- rlwinm r9,r9,0,14,12; /* clear MSR_WE (necessary?) */\
- stw r0,GPR0(r11); \
- SAVE_4GPRS(3, r11); \
- SAVE_2GPRS(7, r11)
-
-/*
- * Exception prolog for critical exceptions. This is a little different
- * from the normal exception prolog above since a critical exception
- * can potentially occur at any point during normal exception processing.
- * Thus we cannot use the same SPRG registers as the normal prolog above.
- * Instead we use a couple of words of memory at low physical addresses.
- * This is OK since we don't support SMP on these processors. For Book E
- * processors, we also have a reserved register (SPRG2) that is only used
- * in critical exceptions so we can free up a GPR to use as the base for
- * indirect access to the critical exception save area. This is necessary
- * since the MMU is always on and the save area is offset from KERNELBASE.
- */
-#define CRITICAL_EXCEPTION_PROLOG \
- mtspr SPRG2,r8; /* SPRG2 only used in criticals */ \
- lis r8,crit_save@ha; \
- stw r10,crit_r10@l(r8); \
- stw r11,crit_r11@l(r8); \
- mfspr r10,SPRG0; \
- stw r10,crit_sprg0@l(r8); \
- mfspr r10,SPRG1; \
- stw r10,crit_sprg1@l(r8); \
- mfspr r10,SPRG4R; \
- stw r10,crit_sprg4@l(r8); \
- mfspr r10,SPRG5R; \
- stw r10,crit_sprg5@l(r8); \
- mfspr r10,SPRG7R; \
- stw r10,crit_sprg7@l(r8); \
- mfspr r10,SPRN_PID; \
- stw r10,crit_pid@l(r8); \
- mfspr r10,SRR0; \
- stw r10,crit_srr0@l(r8); \
- mfspr r10,SRR1; \
- stw r10,crit_srr1@l(r8); \
- mfspr r8,SPRG2; /* SPRG2 only used in criticals */ \
- mfcr r10; /* save CR in r10 for now */\
- mfspr r11,SPRN_CSRR1; /* check whether user or kernel */\
- andi. r11,r11,MSR_PR; \
- lis r11,critical_stack_top@h; \
- ori r11,r11,critical_stack_top@l; \
- beq 1f; \
- /* COMING FROM USER MODE */ \
- mfspr r11,SPRG3; /* if from user, start at top of */\
- lwz r11,THREAD_INFO-THREAD(r11); /* this thread's kernel stack */\
- addi r11,r11,THREAD_SIZE; \
-1: subi r11,r11,INT_FRAME_SIZE; /* Allocate an exception frame */\
- stw r10,_CCR(r11); /* save various registers */\
- stw r12,GPR12(r11); \
- stw r9,GPR9(r11); \
- mflr r10; \
- stw r10,_LINK(r11); \
- mfspr r12,SPRN_DEAR; /* save DEAR and ESR in the frame */\
- stw r12,_DEAR(r11); /* since they may have had stuff */\
- mfspr r9,SPRN_ESR; /* in them at the point where the */\
- stw r9,_ESR(r11); /* exception was taken */\
- mfspr r12,CSRR0; \
- stw r1,GPR1(r11); \
- mfspr r9,CSRR1; \
- stw r1,0(r11); \
- tovirt(r1,r11); \
- rlwinm r9,r9,0,14,12; /* clear MSR_WE (necessary?) */\
- stw r0,GPR0(r11); \
- SAVE_4GPRS(3, r11); \
- SAVE_2GPRS(7, r11)
-
-/*
- * Exception prolog for machine check exceptions. This is similar to
- * the critical exception prolog, except that machine check exceptions
- * have their own save area. For Book E processors, we also have a
- * reserved register (SPRG6) that is only used in machine check exceptions
- * so we can free up a GPR to use as the base for indirect access to the
- * machine check exception save area. This is necessary since the MMU
- * is always on and the save area is offset from KERNELBASE.
- */
-#define MCHECK_EXCEPTION_PROLOG \
- mtspr SPRG6W,r8; /* SPRG6 used in machine checks */ \
- lis r8,mcheck_save@ha; \
- stw r10,mcheck_r10@l(r8); \
- stw r11,mcheck_r11@l(r8); \
- mfspr r10,SPRG0; \
- stw r10,mcheck_sprg0@l(r8); \
- mfspr r10,SPRG1; \
- stw r10,mcheck_sprg1@l(r8); \
- mfspr r10,SPRG4R; \
- stw r10,mcheck_sprg4@l(r8); \
- mfspr r10,SPRG5R; \
- stw r10,mcheck_sprg5@l(r8); \
- mfspr r10,SPRG7R; \
- stw r10,mcheck_sprg7@l(r8); \
- mfspr r10,SPRN_PID; \
- stw r10,mcheck_pid@l(r8); \
- mfspr r10,SRR0; \
- stw r10,mcheck_srr0@l(r8); \
- mfspr r10,SRR1; \
- stw r10,mcheck_srr1@l(r8); \
- mfspr r10,CSRR0; \
- stw r10,mcheck_csrr0@l(r8); \
- mfspr r10,CSRR1; \
- stw r10,mcheck_csrr1@l(r8); \
- mfspr r8,SPRG6R; /* SPRG6 used in machine checks */ \
- mfcr r10; /* save CR in r10 for now */\
- mfspr r11,SPRN_MCSRR1; /* check whether user or kernel */\
- andi. r11,r11,MSR_PR; \
- lis r11,mcheck_stack_top@h; \
- ori r11,r11,mcheck_stack_top@l; \
- beq 1f; \
- /* COMING FROM USER MODE */ \
- mfspr r11,SPRG3; /* if from user, start at top of */\
- lwz r11,THREAD_INFO-THREAD(r11); /* this thread's kernel stack */\
- addi r11,r11,THREAD_SIZE; \
-1: subi r11,r11,INT_FRAME_SIZE; /* Allocate an exception frame */\
- stw r10,_CCR(r11); /* save various registers */\
- stw r12,GPR12(r11); \
- stw r9,GPR9(r11); \
- mflr r10; \
- stw r10,_LINK(r11); \
- mfspr r12,SPRN_DEAR; /* save DEAR and ESR in the frame */\
- stw r12,_DEAR(r11); /* since they may have had stuff */\
- mfspr r9,SPRN_ESR; /* in them at the point where the */\
- stw r9,_ESR(r11); /* exception was taken */\
- mfspr r12,MCSRR0; \
- stw r1,GPR1(r11); \
- mfspr r9,MCSRR1; \
- stw r1,0(r11); \
- tovirt(r1,r11); \
- rlwinm r9,r9,0,14,12; /* clear MSR_WE (necessary?) */\
- stw r0,GPR0(r11); \
- SAVE_4GPRS(3, r11); \
- SAVE_2GPRS(7, r11)
-
-/*
- * Exception vectors.
- */
-#define START_EXCEPTION(label) \
- .align 5; \
-label:
-
-#define FINISH_EXCEPTION(func) \
- bl transfer_to_handler_full; \
- .long func; \
- .long ret_from_except_full
-
-#define EXCEPTION(n, label, hdlr, xfer) \
- START_EXCEPTION(label); \
- NORMAL_EXCEPTION_PROLOG; \
- addi r3,r1,STACK_FRAME_OVERHEAD; \
- xfer(n, hdlr)
-
-#define CRITICAL_EXCEPTION(n, label, hdlr) \
- START_EXCEPTION(label); \
- CRITICAL_EXCEPTION_PROLOG; \
- addi r3,r1,STACK_FRAME_OVERHEAD; \
- EXC_XFER_TEMPLATE(hdlr, n+2, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), \
- NOCOPY, transfer_to_handler_full, \
- ret_from_except_full)
-
-#define MCHECK_EXCEPTION(n, label, hdlr) \
- START_EXCEPTION(label); \
- MCHECK_EXCEPTION_PROLOG; \
- mfspr r5,SPRN_ESR; \
- stw r5,_ESR(r11); \
- addi r3,r1,STACK_FRAME_OVERHEAD; \
- EXC_XFER_TEMPLATE(hdlr, n+2, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), \
- NOCOPY, mcheck_transfer_to_handler, \
- ret_from_mcheck_exc)
-
-#define EXC_XFER_TEMPLATE(hdlr, trap, msr, copyee, tfer, ret) \
- li r10,trap; \
- stw r10,TRAP(r11); \
- lis r10,msr@h; \
- ori r10,r10,msr@l; \
- copyee(r10, r9); \
- bl tfer; \
- .long hdlr; \
- .long ret
-
-#define COPY_EE(d, s) rlwimi d,s,0,16,16
-#define NOCOPY(d, s)
-
-#define EXC_XFER_STD(n, hdlr) \
- EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, NOCOPY, transfer_to_handler_full, \
- ret_from_except_full)
-
-#define EXC_XFER_LITE(n, hdlr) \
- EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, NOCOPY, transfer_to_handler, \
- ret_from_except)
-
-#define EXC_XFER_EE(n, hdlr) \
- EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, COPY_EE, transfer_to_handler_full, \
- ret_from_except_full)
-
-#define EXC_XFER_EE_LITE(n, hdlr) \
- EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, COPY_EE, transfer_to_handler, \
- ret_from_except)
-
-interrupt_base:
- /* Critical Input Interrupt */
- CRITICAL_EXCEPTION(0x0100, CriticalInput, UnknownException)
-
- /* Machine Check Interrupt */
- MCHECK_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
-
- /* Data Storage Interrupt */
- START_EXCEPTION(DataStorage)
- mtspr SPRG0, r10 /* Save some working registers */
- mtspr SPRG1, r11
- mtspr SPRG4W, r12
- mtspr SPRG5W, r13
- mfcr r11
- mtspr SPRG7W, r11
-
- /*
- * Check if it was a store fault, if not then bail
- * because a user tried to access a kernel or
- * read-protected page. Otherwise, get the
- * offending address and handle it.
- */
- mfspr r10, SPRN_ESR
- andis. r10, r10, ESR_ST@h
- beq 2f
-
- mfspr r10, SPRN_DEAR /* Get faulting address */
-
- /* If we are faulting a kernel address, we have to use the
- * kernel page tables.
- */
- lis r11, TASK_SIZE@h
- ori r11, r11, TASK_SIZE@l
- cmplw 0, r10, r11
- bge 2f
-
- /* Get the PGD for the current thread */
-3:
- mfspr r11,SPRG3
- lwz r11,PGDIR(r11)
-4:
- rlwimi r11, r10, 12, 20, 29 /* Create L1 (pgdir/pmd) address */
- lwz r11, 0(r11) /* Get L1 entry */
- rlwinm. r12, r11, 0, 0, 19 /* Extract L2 (pte) base address */
- beq 2f /* Bail if no table */
-
- rlwimi r12, r10, 22, 20, 29 /* Compute PTE address */
- lwz r11, 0(r12) /* Get Linux PTE */
-
- /* Are _PAGE_USER & _PAGE_RW set & _PAGE_HWWRITE not? */
- andi. r13, r11, _PAGE_RW|_PAGE_USER|_PAGE_HWWRITE
- cmpwi 0, r13, _PAGE_RW|_PAGE_USER
- bne 2f /* Bail if not */
-
- /* Update 'changed'. */
- ori r11, r11, _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE
- stw r11, 0(r12) /* Update Linux page table */
-
- /* MAS2 not updated as the entry does exist in the tlb, this
- fault taken to detect state transition (eg: COW -> DIRTY)
- */
- lis r12, MAS3_RPN@h
- ori r12, r12, _PAGE_HWEXEC | MAS3_RPN@l
- and r11, r11, r12
- rlwimi r11, r11, 31, 27, 27 /* SX <- _PAGE_HWEXEC */
- ori r11, r11, (MAS3_UW|MAS3_SW|MAS3_UR|MAS3_SR)@l /* set static perms */
-
- /* update search PID in MAS6, AS = 0 */
- mfspr r12, SPRN_PID0
- slwi r12, r12, 16
- mtspr SPRN_MAS6, r12
-
- /* find the TLB index that caused the fault. It has to be here. */
- tlbsx 0, r10
-
- mtspr SPRN_MAS3,r11
- tlbwe
-
- /* Done...restore registers and get out of here. */
- mfspr r11, SPRG7R
- mtcr r11
- mfspr r13, SPRG5R
- mfspr r12, SPRG4R
- mfspr r11, SPRG1
- mfspr r10, SPRG0
- rfi /* Force context change */
-
-2:
- /*
- * The bailout. Restore registers to pre-exception conditions
- * and call the heavyweights to help us out.
- */
- mfspr r11, SPRG7R
- mtcr r11
- mfspr r13, SPRG5R
- mfspr r12, SPRG4R
- mfspr r11, SPRG1
- mfspr r10, SPRG0
- b data_access
-
- /* Instruction Storage Interrupt */
- START_EXCEPTION(InstructionStorage)
- NORMAL_EXCEPTION_PROLOG
- mfspr r5,SPRN_ESR /* Grab the ESR and save it */
- stw r5,_ESR(r11)
- mr r4,r12 /* Pass SRR0 as arg2 */
- li r5,0 /* Pass zero as arg3 */
- EXC_XFER_EE_LITE(0x0400, handle_page_fault)
-
- /* External Input Interrupt */
- EXCEPTION(0x0500, ExternalInput, do_IRQ, EXC_XFER_LITE)
-
- /* Alignment Interrupt */
- START_EXCEPTION(Alignment)
- NORMAL_EXCEPTION_PROLOG
- mfspr r4,SPRN_DEAR /* Grab the DEAR and save it */
- stw r4,_DEAR(r11)
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_EE(0x0600, AlignmentException)
-
- /* Program Interrupt */
- START_EXCEPTION(Program)
- NORMAL_EXCEPTION_PROLOG
- mfspr r4,SPRN_ESR /* Grab the ESR and save it */
- stw r4,_ESR(r11)
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_STD(0x0700, ProgramCheckException)
-
- /* Floating Point Unavailable Interrupt */
- EXCEPTION(0x0800, FloatingPointUnavailable, UnknownException, EXC_XFER_EE)
-
- /* System Call Interrupt */
- START_EXCEPTION(SystemCall)
- NORMAL_EXCEPTION_PROLOG
- EXC_XFER_EE_LITE(0x0c00, DoSyscall)
-
- /* Auxillary Processor Unavailable Interrupt */
- EXCEPTION(0x2900, AuxillaryProcessorUnavailable, UnknownException, EXC_XFER_EE)
-
- /* Decrementer Interrupt */
- START_EXCEPTION(Decrementer)
- NORMAL_EXCEPTION_PROLOG
- lis r0,TSR_DIS@h /* Setup the DEC interrupt mask */
- mtspr SPRN_TSR,r0 /* Clear the DEC interrupt */
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_LITE(0x0900, timer_interrupt)
-
- /* Fixed Internal Timer Interrupt */
- /* TODO: Add FIT support */
- EXCEPTION(0x3100, FixedIntervalTimer, UnknownException, EXC_XFER_EE)
-
- /* Watchdog Timer Interrupt */
- /* TODO: Add watchdog support */
- CRITICAL_EXCEPTION(0x3200, WatchdogTimer, UnknownException)
-
- /* Data TLB Error Interrupt */
- START_EXCEPTION(DataTLBError)
- mtspr SPRG0, r10 /* Save some working registers */
- mtspr SPRG1, r11
- mtspr SPRG4W, r12
- mtspr SPRG5W, r13
- mfcr r11
- mtspr SPRG7W, r11
- mfspr r10, SPRN_DEAR /* Get faulting address */
-
- /* If we are faulting a kernel address, we have to use the
- * kernel page tables.
- */
- lis r11, TASK_SIZE@h
- ori r11, r11, TASK_SIZE@l
- cmplw 5, r10, r11
- blt 5, 3f
- lis r11, swapper_pg_dir@h
- ori r11, r11, swapper_pg_dir@l
-
- mfspr r12,SPRN_MAS1 /* Set TID to 0 */
- li r13,MAS1_TID@l
- andc r12,r12,r13
- mtspr SPRN_MAS1,r12
-
- b 4f
-
- /* Get the PGD for the current thread */
-3:
- mfspr r11,SPRG3
- lwz r11,PGDIR(r11)
-
-4:
- rlwimi r11, r10, 12, 20, 29 /* Create L1 (pgdir/pmd) address */
- lwz r11, 0(r11) /* Get L1 entry */
- rlwinm. r12, r11, 0, 0, 19 /* Extract L2 (pte) base address */
- beq 2f /* Bail if no table */
-
- rlwimi r12, r10, 22, 20, 29 /* Compute PTE address */
- lwz r11, 0(r12) /* Get Linux PTE */
- andi. r13, r11, _PAGE_PRESENT
- beq 2f
-
- ori r11, r11, _PAGE_ACCESSED
- stw r11, 0(r12)
-
- /* Jump to common tlb load */
- b finish_tlb_load
-2:
- /* The bailout. Restore registers to pre-exception conditions
- * and call the heavyweights to help us out.
- */
- mfspr r11, SPRG7R
- mtcr r11
- mfspr r13, SPRG5R
- mfspr r12, SPRG4R
- mfspr r11, SPRG1
- mfspr r10, SPRG0
- b data_access
-
- /* Instruction TLB Error Interrupt */
- /*
- * Nearly the same as above, except we get our
- * information from different registers and bailout
- * to a different point.
- */
- START_EXCEPTION(InstructionTLBError)
- mtspr SPRG0, r10 /* Save some working registers */
- mtspr SPRG1, r11
- mtspr SPRG4W, r12
- mtspr SPRG5W, r13
- mfcr r11
- mtspr SPRG7W, r11
- mfspr r10, SRR0 /* Get faulting address */
-
- /* If we are faulting a kernel address, we have to use the
- * kernel page tables.
- */
- lis r11, TASK_SIZE@h
- ori r11, r11, TASK_SIZE@l
- cmplw 5, r10, r11
- blt 5, 3f
- lis r11, swapper_pg_dir@h
- ori r11, r11, swapper_pg_dir@l
-
- mfspr r12,SPRN_MAS1 /* Set TID to 0 */
- li r13,MAS1_TID@l
- andc r12,r12,r13
- mtspr SPRN_MAS1,r12
-
- b 4f
-
- /* Get the PGD for the current thread */
-3:
- mfspr r11,SPRG3
- lwz r11,PGDIR(r11)
-
-4:
- rlwimi r11, r10, 12, 20, 29 /* Create L1 (pgdir/pmd) address */
- lwz r11, 0(r11) /* Get L1 entry */
- rlwinm. r12, r11, 0, 0, 19 /* Extract L2 (pte) base address */
- beq 2f /* Bail if no table */
-
- rlwimi r12, r10, 22, 20, 29 /* Compute PTE address */
- lwz r11, 0(r12) /* Get Linux PTE */
- andi. r13, r11, _PAGE_PRESENT
- beq 2f
-
- ori r11, r11, _PAGE_ACCESSED
- stw r11, 0(r12)
-
- /* Jump to common TLB load point */
- b finish_tlb_load
-
-2:
- /* The bailout. Restore registers to pre-exception conditions
- * and call the heavyweights to help us out.
- */
- mfspr r11, SPRG7R
- mtcr r11
- mfspr r13, SPRG5R
- mfspr r12, SPRG4R
- mfspr r11, SPRG1
- mfspr r10, SPRG0
- b InstructionStorage
-
-#ifdef CONFIG_SPE
- /* SPE Unavailable */
- START_EXCEPTION(SPEUnavailable)
- NORMAL_EXCEPTION_PROLOG
- bne load_up_spe
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_EE_LITE(0x2010, KernelSPE)
-#else
- EXCEPTION(0x2020, SPEUnavailable, UnknownException, EXC_XFER_EE)
-#endif /* CONFIG_SPE */
-
- /* SPE Floating Point Data */
-#ifdef CONFIG_SPE
- EXCEPTION(0x2030, SPEFloatingPointData, SPEFloatingPointException, EXC_XFER_EE);
-#else
- EXCEPTION(0x2040, SPEFloatingPointData, UnknownException, EXC_XFER_EE)
-#endif /* CONFIG_SPE */
-
- /* SPE Floating Point Round */
- EXCEPTION(0x2050, SPEFloatingPointRound, UnknownException, EXC_XFER_EE)
-
- /* Performance Monitor */
- EXCEPTION(0x2060, PerformanceMonitor, UnknownException, EXC_XFER_EE)
-
-/* Check for a single step debug exception while in an exception
- * handler before state has been saved. This is to catch the case
- * where an instruction that we are trying to single step causes
- * an exception (eg ITLB/DTLB miss) and thus the first instruction of
- * the exception handler generates a single step debug exception.
- *
- * If we get a debug trap on the first instruction of an exception handler,
- * we reset the MSR_DE in the _exception handler's_ MSR (the debug trap is
- * a critical exception, so we are using SPRN_CSRR1 to manipulate the MSR).
- * The exception handler was handling a non-critical interrupt, so it will
- * save (and later restore) the MSR via SPRN_SRR1, which will still have
- * the MSR_DE bit set.
- */
- /* Debug Interrupt */
- START_EXCEPTION(Debug)
- CRITICAL_EXCEPTION_PROLOG
-
- /*
- * If this is a single step or branch-taken exception in an
- * exception entry sequence, it was probably meant to apply to
- * the code where the exception occurred (since exception entry
- * doesn't turn off DE automatically). We simulate the effect
- * of turning off DE on entry to an exception handler by turning
- * off DE in the CSRR1 value and clearing the debug status.
- */
- mfspr r10,SPRN_DBSR /* check single-step/branch taken */
- andis. r10,r10,(DBSR_IC|DBSR_BT)@h
- beq+ 1f
- andi. r0,r9,MSR_PR /* check supervisor */
- beq 2f /* branch if we need to fix it up... */
-
- /* continue normal handling for a critical exception... */
-1: mfspr r4,SPRN_DBSR
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_TEMPLATE(DebugException, 0x2002, \
- (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), \
- NOCOPY, crit_transfer_to_handler, ret_from_crit_exc)
-
- /* here it looks like we got an inappropriate debug exception. */
-2: rlwinm r9,r9,0,~MSR_DE /* clear DE in the CSRR1 value */
- mtspr SPRN_DBSR,r10 /* clear the IC/BT debug intr status */
- /* restore state and get out */
- lwz r10,_CCR(r11)
- lwz r0,GPR0(r11)
- lwz r1,GPR1(r11)
- mtcrf 0x80,r10
- mtspr CSRR0,r12
- mtspr CSRR1,r9
- lwz r9,GPR9(r11)
-
- mtspr SPRG2,r8; /* SPRG2 only used in criticals */
- lis r8,crit_save@ha;
- lwz r10,crit_r10@l(r8)
- lwz r11,crit_r11@l(r8)
- mfspr r8,SPRG2
-
- rfci
- b .
-
-/*
- * Local functions
- */
- /*
- * Data TLB exceptions will bail out to this point
- * if they can't resolve the lightweight TLB fault.
- */
-data_access:
- NORMAL_EXCEPTION_PROLOG
- mfspr r5,SPRN_ESR /* Grab the ESR, save it, pass arg3 */
- stw r5,_ESR(r11)
- mfspr r4,SPRN_DEAR /* Grab the DEAR, save it, pass arg2 */
- andis. r10,r5,(ESR_ILK|ESR_DLK)@h
- bne 1f
- EXC_XFER_EE_LITE(0x0300, handle_page_fault)
-1:
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_EE_LITE(0x0300, CacheLockingException)
-
-/*
-
- * Both the instruction and data TLB miss get to this
- * point to load the TLB.
- * r10 - EA of fault
- * r11 - TLB (info from Linux PTE)
- * r12, r13 - available to use
- * CR5 - results of addr < TASK_SIZE
- * MAS0, MAS1 - loaded with proper value when we get here
- * MAS2, MAS3 - will need additional info from Linux PTE
- * Upon exit, we reload everything and RFI.
- */
-finish_tlb_load:
- /*
- * We set execute, because we don't have the granularity to
- * properly set this at the page level (Linux problem).
- * Many of these bits are software only. Bits we don't set
- * here we (properly should) assume have the appropriate value.
- */
-
- mfspr r12, SPRN_MAS2
- rlwimi r12, r11, 26, 27, 31 /* extract WIMGE from pte */
- mtspr SPRN_MAS2, r12
-
- bge 5, 1f
-
- /* addr > TASK_SIZE */
- li r10, (MAS3_UX | MAS3_UW | MAS3_UR)
- andi. r13, r11, (_PAGE_USER | _PAGE_HWWRITE | _PAGE_HWEXEC)
- andi. r12, r11, _PAGE_USER /* Test for _PAGE_USER */
- iseleq r12, 0, r10
- and r10, r12, r13
- srwi r12, r10, 1
- or r12, r12, r10 /* Copy user perms into supervisor */
- b 2f
-
- /* addr <= TASK_SIZE */
-1: rlwinm r12, r11, 31, 29, 29 /* Extract _PAGE_HWWRITE into SW */
- ori r12, r12, (MAS3_SX | MAS3_SR)
-
-2: rlwimi r11, r12, 0, 20, 31 /* Extract RPN from PTE and merge with perms */
- mtspr SPRN_MAS3, r11
- tlbwe
-
- /* Done...restore registers and get out of here. */
- mfspr r11, SPRG7R
- mtcr r11
- mfspr r13, SPRG5R
- mfspr r12, SPRG4R
- mfspr r11, SPRG1
- mfspr r10, SPRG0
- rfi /* Force context change */
-
-#ifdef CONFIG_SPE
-/* Note that the SPE support is closely modeled after the AltiVec
- * support. Changes to one are likely to be applicable to the
- * other! */
-load_up_spe:
-/*
- * Disable SPE for the task which had SPE previously,
- * and save its SPE registers in its thread_struct.
- * Enables SPE for use in the kernel on return.
- * On SMP we know the SPE units are free, since we give it up every
- * switch. -- Kumar
- */
- mfmsr r5
- oris r5,r5,MSR_SPE@h
- mtmsr r5 /* enable use of SPE now */
- isync
-/*
- * For SMP, we don't do lazy SPE switching because it just gets too
- * horrendously complex, especially when a task switches from one CPU
- * to another. Instead we call giveup_spe in switch_to.
- */
-#ifndef CONFIG_SMP
- lis r3,last_task_used_spe@ha
- lwz r4,last_task_used_spe@l(r3)
- cmpi 0,r4,0
- beq 1f
- addi r4,r4,THREAD /* want THREAD of last_task_used_spe */
- SAVE_32EVR(0,r10,r4)
- evxor evr10, evr10, evr10 /* clear out evr10 */
- evmwumiaa evr10, evr10, evr10 /* evr10 <- ACC = 0 * 0 + ACC */
- li r5,THREAD_ACC
- evstddx evr10, r4, r5 /* save off accumulator */
- lwz r5,PT_REGS(r4)
- lwz r4,_MSR-STACK_FRAME_OVERHEAD(r5)
- lis r10,MSR_SPE@h
- andc r4,r4,r10 /* disable SPE for previous task */
- stw r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-1:
-#endif /* CONFIG_SMP */
- /* enable use of SPE after return */
- oris r9,r9,MSR_SPE@h
- mfspr r5,SPRG3 /* current task's THREAD (phys) */
- li r4,1
- li r10,THREAD_ACC
- stw r4,THREAD_USED_SPE(r5)
- evlddx evr4,r10,r5
- evmra evr4,evr4
- REST_32EVR(0,r10,r5)
-#ifndef CONFIG_SMP
- subi r4,r5,THREAD
- stw r4,last_task_used_spe@l(r3)
-#endif /* CONFIG_SMP */
- /* restore registers and return */
-2: REST_4GPRS(3, r11)
- lwz r10,_CCR(r11)
- REST_GPR(1, r11)
- mtcr r10
- lwz r10,_LINK(r11)
- mtlr r10
- REST_GPR(10, r11)
- mtspr SRR1,r9
- mtspr SRR0,r12
- REST_GPR(9, r11)
- REST_GPR(12, r11)
- lwz r11,GPR11(r11)
- SYNC
- rfi
-
-
-
-/*
- * SPE unavailable trap from kernel - print a message, but let
- * the task use SPE in the kernel until it returns to user mode.
- */
-KernelSPE:
- lwz r3,_MSR(r1)
- oris r3,r3,MSR_SPE@h
- stw r3,_MSR(r1) /* enable use of SPE after return */
- lis r3,87f@h
- ori r3,r3,87f@l
- mr r4,r2 /* current */
- lwz r5,_NIP(r1)
- bl printk
- b ret_from_except
-87: .string "SPE used in kernel (task=%p, pc=%x) \n"
- .align 4,0
-
-#endif /* CONFIG_SPE */
-
-/*
- * Global functions
- */
-
-/*
- * extern void loadcam_entry(unsigned int index)
- *
- * Load TLBCAM[index] entry in to the L2 CAM MMU
- */
-_GLOBAL(loadcam_entry)
- lis r4,TLBCAM@ha
- addi r4,r4,TLBCAM@l
- mulli r5,r3,20
- add r3,r5,r4
- lwz r4,0(r3)
- mtspr SPRN_MAS0,r4
- lwz r4,4(r3)
- mtspr SPRN_MAS1,r4
- lwz r4,8(r3)
- mtspr SPRN_MAS2,r4
- lwz r4,12(r3)
- mtspr SPRN_MAS3,r4
- tlbwe
- isync
- blr
-
-/*
- * extern void giveup_altivec(struct task_struct *prev)
- *
- * The e500 core does not have an AltiVec unit.
- */
-_GLOBAL(giveup_altivec)
- blr
-
-#ifdef CONFIG_SPE
-/*
- * extern void giveup_spe(struct task_struct *prev)
- *
- */
-_GLOBAL(giveup_spe)
- mfmsr r5
- oris r5,r5,MSR_SPE@h
- SYNC
- mtmsr r5 /* enable use of SPE now */
- isync
- cmpi 0,r3,0
- beqlr- /* if no previous owner, done */
- addi r3,r3,THREAD /* want THREAD of task */
- lwz r5,PT_REGS(r3)
- cmpi 0,r5,0
- SAVE_32EVR(0, r4, r3)
- evxor evr6, evr6, evr6 /* clear out evr6 */
- evmwumiaa evr6, evr6, evr6 /* evr6 <- ACC = 0 * 0 + ACC */
- li r4,THREAD_ACC
- evstddx evr6, r4, r3 /* save off accumulator */
- beq 1f
- lwz r4,_MSR-STACK_FRAME_OVERHEAD(r5)
- lis r3,MSR_SPE@h
- andc r4,r4,r3 /* disable SPE for previous task */
- stw r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-1:
-#ifndef CONFIG_SMP
- li r5,0
- lis r4,last_task_used_spe@ha
- stw r5,last_task_used_spe@l(r4)
-#endif /* CONFIG_SMP */
- blr
-#endif /* CONFIG_SPE */
-
-/*
- * extern void giveup_fpu(struct task_struct *prev)
- *
- * The e500 core does not have an FPU.
- */
-_GLOBAL(giveup_fpu)
- blr
-
-/*
- * extern void abort(void)
- *
- * At present, this routine just applies a system reset.
- */
-_GLOBAL(abort)
- li r13,0
- mtspr SPRN_DBCR0,r13 /* disable all debug events */
- mfmsr r13
- ori r13,r13,MSR_DE@l /* Enable Debug Events */
- mtmsr r13
- mfspr r13,SPRN_DBCR0
- lis r13,(DBCR0_IDM|DBCR0_RST_CHIP)@h
- mtspr SPRN_DBCR0,r13
-
-_GLOBAL(set_context)
-
-#ifdef CONFIG_BDI_SWITCH
- /* Context switch the PTE pointer for the Abatron BDI2000.
- * The PGDIR is the second parameter.
- */
- lis r5, abatron_pteptrs@h
- ori r5, r5, abatron_pteptrs@l
- stw r4, 0x4(r5)
-#endif
- mtspr SPRN_PID,r3
- isync /* Force context change */
- blr
-
-/*
- * We put a few things here that have to be page-aligned. This stuff
- * goes at the beginning of the data segment, which is page-aligned.
- */
- .data
-_GLOBAL(sdata)
-_GLOBAL(empty_zero_page)
- .space 4096
-_GLOBAL(swapper_pg_dir)
- .space 4096
-
- .section .bss
-/* Stack for handling critical exceptions from kernel mode */
-critical_stack_bottom:
- .space 4096
-critical_stack_top:
- .previous
-
-/* Stack for handling machine check exceptions from kernel mode */
-mcheck_stack_bottom:
- .space 4096
-mcheck_stack_top:
- .previous
-
-/*
- * This area is used for temporarily saving registers during the
- * critical and machine check exception prologs. It must always
- * follow the page aligned allocations, so it starts on a page
- * boundary, ensuring that all crit_save areas are in a single
- * page.
- */
-
-/* crit_save */
-_GLOBAL(crit_save)
- .space 4
-_GLOBAL(crit_r10)
- .space 4
-_GLOBAL(crit_r11)
- .space 4
-_GLOBAL(crit_sprg0)
- .space 4
-_GLOBAL(crit_sprg1)
- .space 4
-_GLOBAL(crit_sprg4)
- .space 4
-_GLOBAL(crit_sprg5)
- .space 4
-_GLOBAL(crit_sprg7)
- .space 4
-_GLOBAL(crit_pid)
- .space 4
-_GLOBAL(crit_srr0)
- .space 4
-_GLOBAL(crit_srr1)
- .space 4
-
-/* mcheck_save */
-_GLOBAL(mcheck_save)
- .space 4
-_GLOBAL(mcheck_r10)
- .space 4
-_GLOBAL(mcheck_r11)
- .space 4
-_GLOBAL(mcheck_sprg0)
- .space 4
-_GLOBAL(mcheck_sprg1)
- .space 4
-_GLOBAL(mcheck_sprg4)
- .space 4
-_GLOBAL(mcheck_sprg5)
- .space 4
-_GLOBAL(mcheck_sprg7)
- .space 4
-_GLOBAL(mcheck_pid)
- .space 4
-_GLOBAL(mcheck_srr0)
- .space 4
-_GLOBAL(mcheck_srr1)
- .space 4
-_GLOBAL(mcheck_csrr0)
- .space 4
-_GLOBAL(mcheck_csrr1)
- .space 4
-
-/*
- * This space gets a copy of optional info passed to us by the bootstrap
- * which is used to pass parameters into the kernel like root=/dev/sda1, etc.
- */
-_GLOBAL(cmd_line)
- .space 512
-
-/*
- * Room for two PTE pointers, usually the kernel and current user pointers
- * to their respective root page table.
- */
-abatron_pteptrs:
- .space 8
-
-
+++ /dev/null
-/*
- * arch/ppc/syslib/rheap.c
- *
- * A Remote Heap. Remote means that we don't touch the memory that the
- * heap points to. Normal heap implementations use the memory they manage
- * to place their list. We cannot do that because the memory we manage may
- * have special properties, for example it is uncachable or of different
- * endianess.
- *
- * Author: Pantelis Antoniou <panto@intracom.gr>
- *
- * 2004 (c) INTRACOM S.A. Greece. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-
-#include <asm/rheap.h>
-
-/*
- * Fixup a list_head, needed when copying lists. If the pointers fall
- * between s and e, apply the delta. This assumes that
- * sizeof(struct list_head *) == sizeof(unsigned long *).
- */
-static inline void fixup(unsigned long s, unsigned long e, int d,
- struct list_head *l)
-{
- unsigned long *pp;
-
- pp = (unsigned long *)&l->next;
- if (*pp >= s && *pp < e)
- *pp += d;
-
- pp = (unsigned long *)&l->prev;
- if (*pp >= s && *pp < e)
- *pp += d;
-}
-
-/* Grow the allocated blocks */
-static int grow(rh_info_t * info, int max_blocks)
-{
- rh_block_t *block, *blk;
- int i, new_blocks;
- int delta;
- unsigned long blks, blke;
-
- if (max_blocks <= info->max_blocks)
- return -EINVAL;
-
- new_blocks = max_blocks - info->max_blocks;
-
- block = kmalloc(sizeof(rh_block_t) * max_blocks, GFP_KERNEL);
- if (block == NULL)
- return -ENOMEM;
-
- if (info->max_blocks > 0) {
-
- /* copy old block area */
- memcpy(block, info->block,
- sizeof(rh_block_t) * info->max_blocks);
-
- delta = (char *)block - (char *)info->block;
-
- /* and fixup list pointers */
- blks = (unsigned long)info->block;
- blke = (unsigned long)(info->block + info->max_blocks);
-
- for (i = 0, blk = block; i < info->max_blocks; i++, blk++)
- fixup(blks, blke, delta, &blk->list);
-
- fixup(blks, blke, delta, &info->empty_list);
- fixup(blks, blke, delta, &info->free_list);
- fixup(blks, blke, delta, &info->taken_list);
-
- /* free the old allocated memory */
- if ((info->flags & RHIF_STATIC_BLOCK) == 0)
- kfree(info->block);
- }
-
- info->block = block;
- info->empty_slots += new_blocks;
- info->max_blocks = max_blocks;
- info->flags &= ~RHIF_STATIC_BLOCK;
-
- /* add all new blocks to the free list */
- for (i = 0, blk = block + info->max_blocks; i < new_blocks; i++, blk++)
- list_add(&blk->list, &info->empty_list);
-
- return 0;
-}
-
-/*
- * Assure at least the required amount of empty slots. If this function
- * causes a grow in the block area then all pointers kept to the block
- * area are invalid!
- */
-static int assure_empty(rh_info_t * info, int slots)
-{
- int max_blocks;
-
- /* This function is not meant to be used to grow uncontrollably */
- if (slots >= 4)
- return -EINVAL;
-
- /* Enough space */
- if (info->empty_slots >= slots)
- return 0;
-
- /* Next 16 sized block */
- max_blocks = ((info->max_blocks + slots) + 15) & ~15;
-
- return grow(info, max_blocks);
-}
-
-static rh_block_t *get_slot(rh_info_t * info)
-{
- rh_block_t *blk;
-
- /* If no more free slots, and failure to extend. */
- /* XXX: You should have called assure_empty before */
- if (info->empty_slots == 0) {
- printk(KERN_ERR "rh: out of slots; crash is imminent.\n");
- return NULL;
- }
-
- /* Get empty slot to use */
- blk = list_entry(info->empty_list.next, rh_block_t, list);
- list_del_init(&blk->list);
- info->empty_slots--;
-
- /* Initialize */
- blk->start = NULL;
- blk->size = 0;
- blk->owner = NULL;
-
- return blk;
-}
-
-static inline void release_slot(rh_info_t * info, rh_block_t * blk)
-{
- list_add(&blk->list, &info->empty_list);
- info->empty_slots++;
-}
-
-static void attach_free_block(rh_info_t * info, rh_block_t * blkn)
-{
- rh_block_t *blk;
- rh_block_t *before;
- rh_block_t *after;
- rh_block_t *next;
- int size;
- unsigned long s, e, bs, be;
- struct list_head *l;
-
- /* We assume that they are aligned properly */
- size = blkn->size;
- s = (unsigned long)blkn->start;
- e = s + size;
-
- /* Find the blocks immediately before and after the given one
- * (if any) */
- before = NULL;
- after = NULL;
- next = NULL;
-
- list_for_each(l, &info->free_list) {
- blk = list_entry(l, rh_block_t, list);
-
- bs = (unsigned long)blk->start;
- be = bs + blk->size;
-
- if (next == NULL && s >= bs)
- next = blk;
-
- if (be == s)
- before = blk;
-
- if (e == bs)
- after = blk;
-
- /* If both are not null, break now */
- if (before != NULL && after != NULL)
- break;
- }
-
- /* Now check if they are really adjacent */
- if (before != NULL && s != (unsigned long)before->start + before->size)
- before = NULL;
-
- if (after != NULL && e != (unsigned long)after->start)
- after = NULL;
-
- /* No coalescing; list insert and return */
- if (before == NULL && after == NULL) {
-
- if (next != NULL)
- list_add(&blkn->list, &next->list);
- else
- list_add(&blkn->list, &info->free_list);
-
- return;
- }
-
- /* We don't need it anymore */
- release_slot(info, blkn);
-
- /* Grow the before block */
- if (before != NULL && after == NULL) {
- before->size += size;
- return;
- }
-
- /* Grow the after block backwards */
- if (before == NULL && after != NULL) {
- (int8_t *) after->start -= size;
- after->size += size;
- return;
- }
-
- /* Grow the before block, and release the after block */
- before->size += size + after->size;
- list_del(&after->list);
- release_slot(info, after);
-}
-
-static void attach_taken_block(rh_info_t * info, rh_block_t * blkn)
-{
- rh_block_t *blk;
- struct list_head *l;
-
- /* Find the block immediately before the given one (if any) */
- list_for_each(l, &info->taken_list) {
- blk = list_entry(l, rh_block_t, list);
- if (blk->start > blkn->start) {
- list_add_tail(&blkn->list, &blk->list);
- return;
- }
- }
-
- list_add_tail(&blkn->list, &info->taken_list);
-}
-
-/*
- * Create a remote heap dynamically. Note that no memory for the blocks
- * are allocated. It will upon the first allocation
- */
-rh_info_t *rh_create(unsigned int alignment)
-{
- rh_info_t *info;
-
- /* Alignment must be a power of two */
- if ((alignment & (alignment - 1)) != 0)
- return NULL;
-
- info = kmalloc(sizeof(*info), GFP_KERNEL);
- if (info == NULL)
- return NULL;
-
- info->alignment = alignment;
-
- /* Initially everything as empty */
- info->block = NULL;
- info->max_blocks = 0;
- info->empty_slots = 0;
- info->flags = 0;
-
- INIT_LIST_HEAD(&info->empty_list);
- INIT_LIST_HEAD(&info->free_list);
- INIT_LIST_HEAD(&info->taken_list);
-
- return info;
-}
-
-/*
- * Destroy a dynamically created remote heap. Deallocate only if the areas
- * are not static
- */
-void rh_destroy(rh_info_t * info)
-{
- if ((info->flags & RHIF_STATIC_BLOCK) == 0 && info->block != NULL)
- kfree(info->block);
-
- if ((info->flags & RHIF_STATIC_INFO) == 0)
- kfree(info);
-}
-
-/*
- * Initialize in place a remote heap info block. This is needed to support
- * operation very early in the startup of the kernel, when it is not yet safe
- * to call kmalloc.
- */
-void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks,
- rh_block_t * block)
-{
- int i;
- rh_block_t *blk;
-
- /* Alignment must be a power of two */
- if ((alignment & (alignment - 1)) != 0)
- return;
-
- info->alignment = alignment;
-
- /* Initially everything as empty */
- info->block = block;
- info->max_blocks = max_blocks;
- info->empty_slots = max_blocks;
- info->flags = RHIF_STATIC_INFO | RHIF_STATIC_BLOCK;
-
- INIT_LIST_HEAD(&info->empty_list);
- INIT_LIST_HEAD(&info->free_list);
- INIT_LIST_HEAD(&info->taken_list);
-
- /* Add all new blocks to the free list */
- for (i = 0, blk = block; i < max_blocks; i++, blk++)
- list_add(&blk->list, &info->empty_list);
-}
-
-/* Attach a free memory region, coalesces regions if adjuscent */
-int rh_attach_region(rh_info_t * info, void *start, int size)
-{
- rh_block_t *blk;
- unsigned long s, e, m;
- int r;
-
- /* The region must be aligned */
- s = (unsigned long)start;
- e = s + size;
- m = info->alignment - 1;
-
- /* Round start up */
- s = (s + m) & ~m;
-
- /* Round end down */
- e = e & ~m;
-
- /* Take final values */
- start = (void *)s;
- size = (int)(e - s);
-
- /* Grow the blocks, if needed */
- r = assure_empty(info, 1);
- if (r < 0)
- return r;
-
- blk = get_slot(info);
- blk->start = start;
- blk->size = size;
- blk->owner = NULL;
-
- attach_free_block(info, blk);
-
- return 0;
-}
-
-/* Detatch given address range, splits free block if needed. */
-void *rh_detach_region(rh_info_t * info, void *start, int size)
-{
- struct list_head *l;
- rh_block_t *blk, *newblk;
- unsigned long s, e, m, bs, be;
-
- /* Validate size */
- if (size <= 0)
- return NULL;
-
- /* The region must be aligned */
- s = (unsigned long)start;
- e = s + size;
- m = info->alignment - 1;
-
- /* Round start up */
- s = (s + m) & ~m;
-
- /* Round end down */
- e = e & ~m;
-
- if (assure_empty(info, 1) < 0)
- return NULL;
-
- blk = NULL;
- list_for_each(l, &info->free_list) {
- blk = list_entry(l, rh_block_t, list);
- /* The range must lie entirely inside one free block */
- bs = (unsigned long)blk->start;
- be = (unsigned long)blk->start + blk->size;
- if (s >= bs && e <= be)
- break;
- blk = NULL;
- }
-
- if (blk == NULL)
- return NULL;
-
- /* Perfect fit */
- if (bs == s && be == e) {
- /* Delete from free list, release slot */
- list_del(&blk->list);
- release_slot(info, blk);
- return (void *)s;
- }
-
- /* blk still in free list, with updated start and/or size */
- if (bs == s || be == e) {
- if (bs == s)
- (int8_t *) blk->start += size;
- blk->size -= size;
-
- } else {
- /* The front free fragment */
- blk->size = s - bs;
-
- /* the back free fragment */
- newblk = get_slot(info);
- newblk->start = (void *)e;
- newblk->size = be - e;
-
- list_add(&newblk->list, &blk->list);
- }
-
- return (void *)s;
-}
-
-void *rh_alloc(rh_info_t * info, int size, const char *owner)
-{
- struct list_head *l;
- rh_block_t *blk;
- rh_block_t *newblk;
- void *start;
-
- /* Validate size */
- if (size <= 0)
- return NULL;
-
- /* Align to configured alignment */
- size = (size + (info->alignment - 1)) & ~(info->alignment - 1);
-
- if (assure_empty(info, 1) < 0)
- return NULL;
-
- blk = NULL;
- list_for_each(l, &info->free_list) {
- blk = list_entry(l, rh_block_t, list);
- if (size <= blk->size)
- break;
- blk = NULL;
- }
-
- if (blk == NULL)
- return NULL;
-
- /* Just fits */
- if (blk->size == size) {
- /* Move from free list to taken list */
- list_del(&blk->list);
- blk->owner = owner;
- start = blk->start;
-
- attach_taken_block(info, blk);
-
- return start;
- }
-
- newblk = get_slot(info);
- newblk->start = blk->start;
- newblk->size = size;
- newblk->owner = owner;
-
- /* blk still in free list, with updated start, size */
- (int8_t *) blk->start += size;
- blk->size -= size;
-
- start = newblk->start;
-
- attach_taken_block(info, newblk);
-
- return start;
-}
-
-/* allocate at precisely the given address */
-void *rh_alloc_fixed(rh_info_t * info, void *start, int size, const char *owner)
-{
- struct list_head *l;
- rh_block_t *blk, *newblk1, *newblk2;
- unsigned long s, e, m, bs, be;
-
- /* Validate size */
- if (size <= 0)
- return NULL;
-
- /* The region must be aligned */
- s = (unsigned long)start;
- e = s + size;
- m = info->alignment - 1;
-
- /* Round start up */
- s = (s + m) & ~m;
-
- /* Round end down */
- e = e & ~m;
-
- if (assure_empty(info, 2) < 0)
- return NULL;
-
- blk = NULL;
- list_for_each(l, &info->free_list) {
- blk = list_entry(l, rh_block_t, list);
- /* The range must lie entirely inside one free block */
- bs = (unsigned long)blk->start;
- be = (unsigned long)blk->start + blk->size;
- if (s >= bs && e <= be)
- break;
- }
-
- if (blk == NULL)
- return NULL;
-
- /* Perfect fit */
- if (bs == s && be == e) {
- /* Move from free list to taken list */
- list_del(&blk->list);
- blk->owner = owner;
-
- start = blk->start;
- attach_taken_block(info, blk);
-
- return start;
-
- }
-
- /* blk still in free list, with updated start and/or size */
- if (bs == s || be == e) {
- if (bs == s)
- (int8_t *) blk->start += size;
- blk->size -= size;
-
- } else {
- /* The front free fragment */
- blk->size = s - bs;
-
- /* The back free fragment */
- newblk2 = get_slot(info);
- newblk2->start = (void *)e;
- newblk2->size = be - e;
-
- list_add(&newblk2->list, &blk->list);
- }
-
- newblk1 = get_slot(info);
- newblk1->start = (void *)s;
- newblk1->size = e - s;
- newblk1->owner = owner;
-
- start = newblk1->start;
- attach_taken_block(info, newblk1);
-
- return start;
-}
-
-int rh_free(rh_info_t * info, void *start)
-{
- rh_block_t *blk, *blk2;
- struct list_head *l;
- int size;
-
- /* Linear search for block */
- blk = NULL;
- list_for_each(l, &info->taken_list) {
- blk2 = list_entry(l, rh_block_t, list);
- if (start < blk2->start)
- break;
- blk = blk2;
- }
-
- if (blk == NULL || start > (blk->start + blk->size))
- return -EINVAL;
-
- /* Remove from taken list */
- list_del(&blk->list);
-
- /* Get size of freed block */
- size = blk->size;
- attach_free_block(info, blk);
-
- return size;
-}
-
-int rh_get_stats(rh_info_t * info, int what, int max_stats, rh_stats_t * stats)
-{
- rh_block_t *blk;
- struct list_head *l;
- struct list_head *h;
- int nr;
-
- switch (what) {
-
- case RHGS_FREE:
- h = &info->free_list;
- break;
-
- case RHGS_TAKEN:
- h = &info->taken_list;
- break;
-
- default:
- return -EINVAL;
- }
-
- /* Linear search for block */
- nr = 0;
- list_for_each(l, h) {
- blk = list_entry(l, rh_block_t, list);
- if (stats != NULL && nr < max_stats) {
- stats->start = blk->start;
- stats->size = blk->size;
- stats->owner = blk->owner;
- stats++;
- }
- nr++;
- }
-
- return nr;
-}
-
-int rh_set_owner(rh_info_t * info, void *start, const char *owner)
-{
- rh_block_t *blk, *blk2;
- struct list_head *l;
- int size;
-
- /* Linear search for block */
- blk = NULL;
- list_for_each(l, &info->taken_list) {
- blk2 = list_entry(l, rh_block_t, list);
- if (start < blk2->start)
- break;
- blk = blk2;
- }
-
- if (blk == NULL || start > (blk->start + blk->size))
- return -EINVAL;
-
- blk->owner = owner;
-
- return size;
-}
-
-void rh_dump(rh_info_t * info)
-{
- static rh_stats_t st[32]; /* XXX maximum 32 blocks */
- int maxnr;
- int i, nr;
-
- maxnr = sizeof(st) / sizeof(st[0]);
-
- printk(KERN_INFO
- "info @0x%p (%d slots empty / %d max)\n",
- info, info->empty_slots, info->max_blocks);
-
- printk(KERN_INFO " Free:\n");
- nr = rh_get_stats(info, RHGS_FREE, maxnr, st);
- if (nr > maxnr)
- nr = maxnr;
- for (i = 0; i < nr; i++)
- printk(KERN_INFO
- " 0x%p-0x%p (%u)\n",
- st[i].start, (int8_t *) st[i].start + st[i].size,
- st[i].size);
- printk(KERN_INFO "\n");
-
- printk(KERN_INFO " Taken:\n");
- nr = rh_get_stats(info, RHGS_TAKEN, maxnr, st);
- if (nr > maxnr)
- nr = maxnr;
- for (i = 0; i < nr; i++)
- printk(KERN_INFO
- " 0x%p-0x%p (%u) %s\n",
- st[i].start, (int8_t *) st[i].start + st[i].size,
- st[i].size, st[i].owner != NULL ? st[i].owner : "");
- printk(KERN_INFO "\n");
-}
-
-void rh_dump_blk(rh_info_t * info, rh_block_t * blk)
-{
- printk(KERN_INFO
- "blk @0x%p: 0x%p-0x%p (%u)\n",
- blk, blk->start, (int8_t *) blk->start + blk->size, blk->size);
-}
+++ /dev/null
-/*
- * PowerPC version derived from arch/arm/mm/consistent.c
- * Copyright (C) 2001 Dan Malek (dmalek@jlc.net)
- *
- * arch/ppc/mm/cachemap.c
- *
- * Copyright (C) 2000 Russell King
- *
- * Consistent memory allocators. Used for DMA devices that want to
- * share uncached memory with the processor core. The function return
- * is the virtual address and 'dma_handle' is the physical address.
- * Mostly stolen from the ARM port, with some changes for PowerPC.
- * -- Dan
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/stddef.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/bootmem.h>
-#include <linux/highmem.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/pgalloc.h>
-#include <asm/prom.h>
-#include <asm/io.h>
-#include <asm/hardirq.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <asm/uaccess.h>
-#include <asm/smp.h>
-#include <asm/machdep.h>
-
-int map_page(unsigned long va, phys_addr_t pa, int flags);
-
-/* This function will allocate the requested contiguous pages and
- * map them into the kernel's vmalloc() space. This is done so we
- * get unique mapping for these pages, outside of the kernel's 1:1
- * virtual:physical mapping. This is necessary so we can cover large
- * portions of the kernel with single large page TLB entries, and
- * still get unique uncached pages for consistent DMA.
- */
-void *consistent_alloc(int gfp, size_t size, dma_addr_t *dma_handle)
-{
- int order, err;
- struct page *page, *free, *end;
- phys_addr_t pa;
- unsigned long flags, offset;
- struct vm_struct *area = NULL;
- unsigned long va = 0;
-
- BUG_ON(in_interrupt());
-
- /* Only allocate page size areas */
- size = PAGE_ALIGN(size);
- order = get_order(size);
-
- free = page = alloc_pages(gfp, order);
- if (! page)
- return NULL;
-
- pa = page_to_phys(page);
- *dma_handle = page_to_bus(page);
- end = page + (1 << order);
-
- /*
- * we need to ensure that there are no cachelines in use,
- * or worse dirty in this area.
- */
- invalidate_dcache_range((unsigned long)page_address(page),
- (unsigned long)page_address(page) + size);
-
- /*
- * alloc_pages() expects the block to be handled as a unit, so
- * it only sets the page count on the first page. We set the
- * counts on each page so they can be freed individually
- */
- for (; page < end; page++)
- set_page_count(page, 1);
-
-
- /* Allocate some common virtual space to map the new pages*/
- area = get_vm_area(size, VM_ALLOC);
- if (! area)
- goto out;
-
- va = (unsigned long) area->addr;
-
- flags = _PAGE_KERNEL | _PAGE_NO_CACHE;
-
- for (offset = 0; offset < size; offset += PAGE_SIZE) {
- err = map_page(va+offset, pa+offset, flags);
- if (err) {
- vfree((void *)va);
- va = 0;
- goto out;
- }
-
- free++;
- }
-
- out:
- /* Free pages which weren't mapped */
- for (; free < end; free++) {
- __free_page(free);
- }
-
- return (void *)va;
-}
-
-/*
- * free page(s) as defined by the above mapping.
- */
-void consistent_free(void *vaddr)
-{
- BUG_ON(in_interrupt());
- vfree(vaddr);
-}
-
-/*
- * make an area consistent.
- */
-void consistent_sync(void *vaddr, size_t size, int direction)
-{
- unsigned long start = (unsigned long)vaddr;
- unsigned long end = start + size;
-
- switch (direction) {
- case DMA_NONE:
- BUG();
- case DMA_FROM_DEVICE: /* invalidate only */
- invalidate_dcache_range(start, end);
- break;
- case DMA_TO_DEVICE: /* writeback only */
- clean_dcache_range(start, end);
- break;
- case DMA_BIDIRECTIONAL: /* writeback and invalidate */
- flush_dcache_range(start, end);
- break;
- }
-}
-
-/*
- * consistent_sync_page make a page are consistent. identical
- * to consistent_sync, but takes a struct page instead of a virtual address
- */
-
-void consistent_sync_page(struct page *page, unsigned long offset,
- size_t size, int direction)
-{
- unsigned long start;
-
- start = (unsigned long)page_address(page) + offset;
- consistent_sync((void *)start, size, direction);
-}
-
-EXPORT_SYMBOL(consistent_sync_page);
+++ /dev/null
-/*
- * Modifications by Kumar Gala (kumar.gala@freescale.com) to support
- * E500 Book E processors.
- *
- * Copyright 2004 Freescale Semiconductor, Inc
- *
- * This file contains the routines for initializing the MMU
- * on the 4xx series of chips.
- * -- paulus
- *
- * Derived from arch/ppc/mm/init.c:
- * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- * Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
- * and Cort Dougan (PReP) (cort@cs.nmt.edu)
- * Copyright (C) 1996 Paul Mackerras
- * Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
- *
- * Derived from "arch/i386/mm/init.c"
- * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/config.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/stddef.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/bootmem.h>
-#include <linux/highmem.h>
-
-#include <asm/pgalloc.h>
-#include <asm/prom.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <asm/uaccess.h>
-#include <asm/smp.h>
-#include <asm/bootx.h>
-#include <asm/machdep.h>
-#include <asm/setup.h>
-
-extern void loadcam_entry(unsigned int index);
-unsigned int tlbcam_index;
-unsigned int num_tlbcam_entries;
-static unsigned long __cam0, __cam1, __cam2;
-extern unsigned long total_lowmem;
-extern unsigned long __max_low_memory;
-#define MAX_LOW_MEM CONFIG_LOWMEM_SIZE
-
-struct tlbcam {
- u32 MAS0;
- u32 MAS1;
- u32 MAS2;
- u32 MAS3;
- u32 MAS7;
-} TLBCAM[NUM_TLBCAMS];
-
-struct tlbcamrange {
- unsigned long start;
- unsigned long limit;
- phys_addr_t phys;
-} tlbcam_addrs[NUM_TLBCAMS];
-
-extern unsigned int tlbcam_index;
-
-/*
- * Return PA for this VA if it is mapped by a CAM, or 0
- */
-unsigned long v_mapped_by_tlbcam(unsigned long va)
-{
- int b;
- for (b = 0; b < tlbcam_index; ++b)
- if (va >= tlbcam_addrs[b].start && va < tlbcam_addrs[b].limit)
- return tlbcam_addrs[b].phys + (va - tlbcam_addrs[b].start);
- return 0;
-}
-
-/*
- * Return VA for a given PA or 0 if not mapped
- */
-unsigned long p_mapped_by_tlbcam(unsigned long pa)
-{
- int b;
- for (b = 0; b < tlbcam_index; ++b)
- if (pa >= tlbcam_addrs[b].phys
- && pa < (tlbcam_addrs[b].limit-tlbcam_addrs[b].start)
- +tlbcam_addrs[b].phys)
- return tlbcam_addrs[b].start+(pa-tlbcam_addrs[b].phys);
- return 0;
-}
-
-/*
- * Set up one of the I/D BAT (block address translation) register pairs.
- * The parameters are not checked; in particular size must be a power
- * of 4 between 4k and 256M.
- */
-void settlbcam(int index, unsigned long virt, phys_addr_t phys,
- unsigned int size, int flags, unsigned int pid)
-{
- unsigned int tsize, lz;
-
- asm ("cntlzw %0,%1" : "=r" (lz) : "r" (size));
- tsize = (21 - lz) / 2;
-
-#ifdef CONFIG_SMP
- if ((flags & _PAGE_NO_CACHE) == 0)
- flags |= _PAGE_COHERENT;
-#endif
-
- TLBCAM[index].MAS0 = MAS0_TLBSEL | (index << 16);
- TLBCAM[index].MAS1 = MAS1_VALID | MAS1_IPROT | MAS1_TSIZE(tsize) | ((pid << 16) & MAS1_TID);
- TLBCAM[index].MAS2 = virt & PAGE_MASK;
-
- TLBCAM[index].MAS2 |= (flags & _PAGE_WRITETHRU) ? MAS2_W : 0;
- TLBCAM[index].MAS2 |= (flags & _PAGE_NO_CACHE) ? MAS2_I : 0;
- TLBCAM[index].MAS2 |= (flags & _PAGE_COHERENT) ? MAS2_M : 0;
- TLBCAM[index].MAS2 |= (flags & _PAGE_GUARDED) ? MAS2_G : 0;
- TLBCAM[index].MAS2 |= (flags & _PAGE_ENDIAN) ? MAS2_E : 0;
-
- TLBCAM[index].MAS3 = (phys & PAGE_MASK) | MAS3_SX | MAS3_SR;
- TLBCAM[index].MAS3 |= ((flags & _PAGE_RW) ? MAS3_SW : 0);
-
-#ifndef CONFIG_KGDB /* want user access for breakpoints */
- if (flags & _PAGE_USER) {
- TLBCAM[index].MAS3 |= MAS3_UX | MAS3_UR;
- TLBCAM[index].MAS3 |= ((flags & _PAGE_RW) ? MAS3_UW : 0);
- }
-#else
- TLBCAM[index].MAS3 |= MAS3_UX | MAS3_UR;
- TLBCAM[index].MAS3 |= ((flags & _PAGE_RW) ? MAS3_UW : 0);
-#endif
-
- tlbcam_addrs[index].start = virt;
- tlbcam_addrs[index].limit = virt + size - 1;
- tlbcam_addrs[index].phys = phys;
-
- loadcam_entry(index);
-}
-
-void invalidate_tlbcam_entry(int index)
-{
- TLBCAM[index].MAS0 = MAS0_TLBSEL | (index << 16);
- TLBCAM[index].MAS1 = ~MAS1_VALID;
-
- loadcam_entry(index);
-}
-
-void __init cam_mapin_ram(unsigned long cam0, unsigned long cam1,
- unsigned long cam2)
-{
- settlbcam(0, KERNELBASE, PPC_MEMSTART, cam0, _PAGE_KERNEL, 0);
- tlbcam_index++;
- if (cam1) {
- tlbcam_index++;
- settlbcam(1, KERNELBASE+cam0, PPC_MEMSTART+cam0, cam1, _PAGE_KERNEL, 0);
- }
- if (cam2) {
- tlbcam_index++;
- settlbcam(2, KERNELBASE+cam0+cam1, PPC_MEMSTART+cam0+cam1, cam2, _PAGE_KERNEL, 0);
- }
-}
-
-/*
- * MMU_init_hw does the chip-specific initialization of the MMU hardware.
- */
-void __init MMU_init_hw(void)
-{
- flush_instruction_cache();
-}
-
-unsigned long __init mmu_mapin_ram(void)
-{
- cam_mapin_ram(__cam0, __cam1, __cam2);
-
- return __cam0 + __cam1 + __cam2;
-}
-
-
-void __init
-adjust_total_lowmem(void)
-{
- unsigned long max_low_mem = MAX_LOW_MEM;
- unsigned long cam_max = 0x10000000;
- unsigned long ram;
-
- /* adjust CAM size to max_low_mem */
- if (max_low_mem < cam_max)
- cam_max = max_low_mem;
-
- /* adjust lowmem size to max_low_mem */
- if (max_low_mem < total_lowmem)
- ram = max_low_mem;
- else
- ram = total_lowmem;
-
- /* Calculate CAM values */
- __cam0 = 1UL << 2 * (__ilog2(ram) / 2);
- if (__cam0 > cam_max)
- __cam0 = cam_max;
- ram -= __cam0;
- if (ram) {
- __cam1 = 1UL << 2 * (__ilog2(ram) / 2);
- if (__cam1 > cam_max)
- __cam1 = cam_max;
- ram -= __cam1;
- }
- if (ram) {
- __cam2 = 1UL << 2 * (__ilog2(ram) / 2);
- if (__cam2 > cam_max)
- __cam2 = cam_max;
- ram -= __cam2;
- }
-
- printk(KERN_INFO "Memory CAM mapping: CAM0=%ldMb, CAM1=%ldMb,"
- " CAM2=%ldMb residual: %ldMb\n",
- __cam0 >> 20, __cam1 >> 20, __cam2 >> 20,
- (total_lowmem - __cam0 - __cam1 - __cam2) >> 20);
- __max_low_memory = max_low_mem = __cam0 + __cam1 + __cam2;
-}
+++ /dev/null
-#
-# Makefile for the linux kernel.
-#
-
-obj-y := ocp.o ocp-driver.o ocp-probe.o
-
+++ /dev/null
-/*
- * FILE NAME: ocp-driver.c
- *
- * BRIEF MODULE DESCRIPTION:
- * driver callback, id matching and registration
- * Based on drivers/pci/pci-driver, Copyright (c) 1997--1999 Martin Mares
- *
- * Maintained by: Armin <akuster@mvista.com>
- *
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <asm/ocp.h>
-#include <linux/module.h>
-#include <linux/init.h>
-
-/*
- * Registration of OCP drivers and handling of hot-pluggable devices.
- */
-
-static int
-ocp_device_probe(struct device *dev)
-{
- int error = 0;
- struct ocp_driver *drv;
- struct ocp_device *ocp_dev;
-
- drv = to_ocp_driver(dev->driver);
- ocp_dev = to_ocp_dev(dev);
-
- if (drv->probe) {
- error = drv->probe(ocp_dev);
- DBG("probe return code %d\n", error);
- if (error >= 0) {
- ocp_dev->driver = drv;
- error = 0;
- }
- }
- return error;
-}
-
-static int
-ocp_device_remove(struct device *dev)
-{
- struct ocp_device *ocp_dev = to_ocp_dev(dev);
-
- if (ocp_dev->driver) {
- if (ocp_dev->driver->remove)
- ocp_dev->driver->remove(ocp_dev);
- ocp_dev->driver = NULL;
- }
- return 0;
-}
-
-static int
-ocp_device_suspend(struct device *dev, u32 state, u32 level)
-{
- struct ocp_device *ocp_dev = to_ocp_dev(dev);
-
- int error = 0;
-
- if (ocp_dev->driver) {
- if (level == SUSPEND_SAVE_STATE && ocp_dev->driver->save_state)
- error = ocp_dev->driver->save_state(ocp_dev, state);
- else if (level == SUSPEND_POWER_DOWN
- && ocp_dev->driver->suspend)
- error = ocp_dev->driver->suspend(ocp_dev, state);
- }
- return error;
-}
-
-static int
-ocp_device_resume(struct device *dev, u32 level)
-{
- struct ocp_device *ocp_dev = to_ocp_dev(dev);
-
- if (ocp_dev->driver) {
- if (level == RESUME_POWER_ON && ocp_dev->driver->resume)
- ocp_dev->driver->resume(ocp_dev);
- }
- return 0;
-}
-
-/**
- * ocp_bus_match - Works out whether an OCP device matches any
- * of the IDs listed for a given OCP driver.
- * @dev: the generic device struct for the OCP device
- * @drv: the generic driver struct for the OCP driver
- *
- * Used by a driver to check whether a OCP device present in the
- * system is in its list of supported devices. Returns 1 for a
- * match, or 0 if there is no match.
- */
-static int
-ocp_bus_match(struct device *dev, struct device_driver *drv)
-{
- struct ocp_device *ocp_dev = to_ocp_dev(dev);
- struct ocp_driver *ocp_drv = to_ocp_driver(drv);
- const struct ocp_device_id *ids = ocp_drv->id_table;
-
- if (!ids)
- return 0;
-
- while (ids->vendor || ids->device) {
- if ((ids->vendor == OCP_ANY_ID
- || ids->vendor == ocp_dev->vendor)
- && (ids->device == OCP_ANY_ID
- || ids->device == ocp_dev->device)) {
- DBG("Bus match -vendor:%x device:%x\n", ids->vendor,
- ids->device);
- return 1;
- }
- ids++;
- }
- return 0;
-}
-
-struct bus_type ocp_bus_type = {
- .name = "ocp",
- .match = ocp_bus_match,
-};
-
-static int __init
-ocp_driver_init(void)
-{
- return bus_register(&ocp_bus_type);
-}
-
-postcore_initcall(ocp_driver_init);
-
-/**
- * ocp_register_driver - register a new ocp driver
- * @drv: the driver structure to register
- *
- * Adds the driver structure to the list of registered drivers
- * Returns the number of ocp devices which were claimed by the driver
- * during registration. The driver remains registered even if the
- * return value is zero.
- */
-int
-ocp_register_driver(struct ocp_driver *drv)
-{
- int count = 0;
-
- /* initialize common driver fields */
- drv->driver.name = drv->name;
- drv->driver.bus = &ocp_bus_type;
- drv->driver.probe = ocp_device_probe;
- drv->driver.resume = ocp_device_resume;
- drv->driver.suspend = ocp_device_suspend;
- drv->driver.remove = ocp_device_remove;
-
- /* register with core */
- count = driver_register(&drv->driver);
- return count ? count : 1;
-}
-
-/**
- * ocp_unregister_driver - unregister a ocp driver
- * @drv: the driver structure to unregister
- *
- * Deletes the driver structure from the list of registered OCP drivers,
- * gives it a chance to clean up by calling its remove() function for
- * each device it was responsible for, and marks those devices as
- * driverless.
- */
-
-void
-ocp_unregister_driver(struct ocp_driver *drv)
-{
- driver_unregister(&drv->driver);
-}
-
-EXPORT_SYMBOL(ocp_register_driver);
-EXPORT_SYMBOL(ocp_unregister_driver);
-EXPORT_SYMBOL(ocp_bus_type);
+++ /dev/null
-/*
- * FILE NAME: ocp-probe.c
- *
- * BRIEF MODULE DESCRIPTION:
- * Device scanning & bus set routines
- * Based on drivers/pci/probe, Copyright (c) 1997--1999 Martin Mares
- *
- * Maintained by: Armin <akuster@mvista.com>
- *
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <asm/ocp.h>
-
-LIST_HEAD(ocp_devices);
-struct device *ocp_bus;
-
-static struct ocp_device * __devinit
-ocp_setup_dev(struct ocp_def *odef, unsigned int index)
-{
- struct ocp_device *dev;
-
- dev = kmalloc(sizeof(*dev), GFP_KERNEL);
- if (!dev)
- return NULL;
- memset(dev, 0, sizeof(*dev));
-
- dev->vendor = odef->vendor;
- dev->device = odef->device;
- dev->num = ocp_get_num(dev->device);
- dev->paddr = odef->paddr;
- dev->irq = odef->irq;
- dev->pm = odef->pm;
- dev->current_state = 4;
-
- sprintf(dev->name, "OCP device %04x:%04x", dev->vendor, dev->device);
-
- DBG("%s %s 0x%lx irq:%d pm:0x%lx \n", dev->slot_name, dev->name,
- (unsigned long) dev->paddr, dev->irq, dev->pm);
-
- /* now put in global tree */
- sprintf(dev->dev.bus_id, "%d", index);
- dev->dev.parent = ocp_bus;
- dev->dev.bus = &ocp_bus_type;
- device_register(&dev->dev);
-
- return dev;
-}
-
-static struct device * __devinit ocp_alloc_primary_bus(void)
-{
- struct device *b;
-
- b = kmalloc(sizeof(struct device), GFP_KERNEL);
- if (b == NULL)
- return NULL;
- memset(b, 0, sizeof(struct device));
- strcpy(b->bus_id, "ocp");
-
- device_register(b);
-
- return b;
-}
-
-void __devinit ocp_setup_devices(struct ocp_def *odef)
-{
- int index;
- struct ocp_device *dev;
-
- if (ocp_bus == NULL)
- ocp_bus = ocp_alloc_primary_bus();
- for (index = 0; odef->vendor != OCP_VENDOR_INVALID; ++index, ++odef) {
- dev = ocp_setup_dev(odef, index);
- if (dev != NULL)
- list_add_tail(&dev->global_list, &ocp_devices);
- }
-}
-
-extern struct ocp_def core_ocp[];
-
-static int __init
-ocparch_init(void)
-{
- ocp_setup_devices(core_ocp);
- return 0;
-}
-
-subsys_initcall(ocparch_init);
-
-EXPORT_SYMBOL(ocp_devices);
+++ /dev/null
-/*
- * ocp.c
- *
- * The is drived from pci.c
- *
- * Current Maintainer
- * Armin Kuster akuster@dslextreme.com
- * Jan, 2002
- *
- *
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/list.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <asm/io.h>
-#include <asm/ocp.h>
-#include <asm/errno.h>
-
-/**
- * ocp_get_num - This determines how many OCP devices of a given
- * device are registered
- * @device: OCP device such as HOST, PCI, GPT, UART, OPB, IIC, GPIO, EMAC, ZMII,
- *
- * The routine returns the number that devices which is registered
- */
-unsigned int ocp_get_num(unsigned int device)
-{
- unsigned int count = 0;
- struct ocp_device *ocp;
- struct list_head *ocp_l;
-
- list_for_each(ocp_l, &ocp_devices) {
- ocp = list_entry(ocp_l, struct ocp_device, global_list);
- if (device == ocp->device)
- count++;
- }
- return count;
-}
-
-/**
- * ocp_get_dev - get ocp driver pointer for ocp device and instance of it
- * @device: OCP device such as PCI, GPT, UART, OPB, IIC, GPIO, EMAC, ZMII
- * @dev_num: ocp device number whos paddr you want
- *
- * The routine returns ocp device pointer
- * in list based on device and instance of that device
- *
- */
-struct ocp_device *
-ocp_get_dev(unsigned int device, int dev_num)
-{
- struct ocp_device *ocp;
- struct list_head *ocp_l;
- int count = 0;
-
- list_for_each(ocp_l, &ocp_devices) {
- ocp = list_entry(ocp_l, struct ocp_device, global_list);
- if (device == ocp->device) {
- if (dev_num == count)
- return ocp;
- count++;
- }
- }
- return NULL;
-}
-
-EXPORT_SYMBOL(ocp_get_dev);
-EXPORT_SYMBOL(ocp_get_num);
-
-#ifdef CONFIG_PM
-int ocp_generic_suspend(struct ocp_device *pdev, u32 state)
-{
- ocp_force_power_off(pdev);
- return 0;
-}
-
-int ocp_generic_resume(struct ocp_device *pdev)
-{
- ocp_force_power_on(pdev);
-}
-
-EXPORT_SYMBOL(ocp_generic_suspend);
-EXPORT_SYMBOL(ocp_generic_resume);
-#endif /* CONFIG_PM */
+++ /dev/null
-
-menu "Profiling support"
- depends on EXPERIMENTAL
-
-config PROFILING
- bool "Profiling support (EXPERIMENTAL)"
- help
- Say Y here to enable the extended profiling support mechanisms used
- by profilers such as OProfile.
-
-
-config OPROFILE
- tristate "OProfile system profiling (EXPERIMENTAL)"
- depends on PROFILING
- help
- OProfile is a profiling system capable of profiling the
- whole system, include the kernel, kernel modules, libraries,
- and applications.
-
- If unsure, say N.
-
-endmenu
-
+++ /dev/null
-obj-$(CONFIG_OPROFILE) += oprofile.o
-
-DRIVER_OBJS := $(addprefix ../../../drivers/oprofile/, \
- oprof.o cpu_buffer.o buffer_sync.o \
- event_buffer.o oprofile_files.o \
- oprofilefs.o oprofile_stats.o \
- timer_int.o )
-
-oprofile-y := $(DRIVER_OBJS) init.o
+++ /dev/null
-/**
- * @file init.c
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author John Levon <levon@movementarian.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/oprofile.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-
-int __init oprofile_arch_init(struct oprofile_operations ** ops)
-{
- return -ENODEV;
-}
-
-
-void oprofile_arch_exit(void)
-{
-}
+++ /dev/null
-config 85xx
- bool
- depends on E500
- default y
-
-config PPC_INDIRECT_PCI_BE
- bool
- depends on 85xx
- default y
-
-menu "Freescale 85xx options"
- depends on E500
-
-choice
- prompt "Machine Type"
- depends on 85xx
- default MPC8540_ADS
-
-config MPC8540_ADS
- bool "MPC8540ADS"
- help
- This option enables support for the MPC 8540 ADS evaluation board.
-
-endchoice
-
-# It's often necessary to know the specific 85xx processor type.
-# Fortunately, it is implied (so far) from the board type, so we
-# don't need to ask more redundant questions.
-config MPC8540
- bool
- depends on MPC8540_ADS
- default y
-
-config FSL_OCP
- bool
- depends on 85xx
- default y
-
-config PPC_GEN550
- bool
- depends on MPC8540
- default y
-
-endmenu
+++ /dev/null
-#
-# Makefile for the PowerPC 85xx linux kernel.
-#
-
-obj-$(CONFIG_MPC8540_ADS) += mpc85xx_ads_common.o mpc8540_ads.o
-
-obj-$(CONFIG_MPC8540) += mpc8540.o
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/mpc8540.c
- *
- * MPC8540 I/O descriptions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <asm/mpc85xx.h>
-#include <asm/ocp.h>
-
-/* These should be defined in platform code */
-extern struct ocp_gfar_data mpc85xx_tsec1_def;
-extern struct ocp_gfar_data mpc85xx_tsec2_def;
-extern struct ocp_gfar_data mpc85xx_fec_def;
-extern struct ocp_mpc_i2c_data mpc85xx_i2c1_def;
-
-/* We use offsets for paddr since we do not know at compile time
- * what CCSRBAR is, platform code should fix this up in
- * setup_arch
- *
- * Only the first IRQ is given even if a device has
- * multiple lines associated with ita
- */
-struct ocp_def core_ocp[] = {
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_IIC,
- .index = 0,
- .paddr = MPC85xx_IIC1_OFFSET,
- .irq = MPC85xx_IRQ_IIC1,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_i2c1_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_16550,
- .index = 0,
- .paddr = MPC85xx_UART0_OFFSET,
- .irq = MPC85xx_IRQ_DUART,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_16550,
- .index = 1,
- .paddr = MPC85xx_UART1_OFFSET,
- .irq = MPC85xx_IRQ_DUART,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_GFAR,
- .index = 0,
- .paddr = MPC85xx_ENET1_OFFSET,
- .irq = MPC85xx_IRQ_TSEC1_TX,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_tsec1_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_GFAR,
- .index = 1,
- .paddr = MPC85xx_ENET2_OFFSET,
- .irq = MPC85xx_IRQ_TSEC2_TX,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_tsec2_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_GFAR,
- .index = 2,
- .paddr = MPC85xx_ENET3_OFFSET,
- .irq = MPC85xx_IRQ_FEC,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_fec_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_DMA,
- .index = 0,
- .paddr = MPC85xx_DMA_OFFSET,
- .irq = MPC85xx_IRQ_DMA0,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_PERFMON,
- .index = 0,
- .paddr = MPC85xx_PERFMON_OFFSET,
- .irq = MPC85xx_IRQ_PERFMON,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_INVALID
- }
-};
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/mpc8540_ads.c
- *
- * MPC8540ADS board specific routines
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/reboot.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/serial.h>
-#include <linux/tty.h> /* for linux/serial_core.h */
-#include <linux/serial_core.h>
-#include <linux/module.h>
-
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/prom.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/pci-bridge.h>
-#include <asm/mpc85xx.h>
-#include <asm/irq.h>
-#include <asm/immap_85xx.h>
-#include <asm/kgdb.h>
-#include <asm/ocp.h>
-#include <mm/mmu_decl.h>
-
-#include <syslib/ppc85xx_common.h>
-#include <syslib/ppc85xx_setup.h>
-
-struct ocp_gfar_data mpc85xx_tsec1_def = {
- .interruptTransmit = MPC85xx_IRQ_TSEC1_TX,
- .interruptError = MPC85xx_IRQ_TSEC1_ERROR,
- .interruptReceive = MPC85xx_IRQ_TSEC1_RX,
- .interruptPHY = MPC85xx_IRQ_EXT5,
- .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR
- | GFAR_HAS_RMON
- | GFAR_HAS_PHY_INTR | GFAR_HAS_COALESCE),
- .phyid = 0,
- .phyregidx = 0,
-};
-
-struct ocp_gfar_data mpc85xx_tsec2_def = {
- .interruptTransmit = MPC85xx_IRQ_TSEC2_TX,
- .interruptError = MPC85xx_IRQ_TSEC2_ERROR,
- .interruptReceive = MPC85xx_IRQ_TSEC2_RX,
- .interruptPHY = MPC85xx_IRQ_EXT5,
- .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR
- | GFAR_HAS_RMON
- | GFAR_HAS_PHY_INTR | GFAR_HAS_COALESCE),
- .phyid = 1,
- .phyregidx = 0,
-};
-
-struct ocp_gfar_data mpc85xx_fec_def = {
- .interruptTransmit = MPC85xx_IRQ_FEC,
- .interruptError = MPC85xx_IRQ_FEC,
- .interruptReceive = MPC85xx_IRQ_FEC,
- .interruptPHY = MPC85xx_IRQ_EXT5,
- .flags = 0,
- .phyid = 3,
- .phyregidx = 0,
-};
-
-struct ocp_fs_i2c_data mpc85xx_i2c1_def = {
- .flags = FS_I2C_SEPARATE_DFSRR,
-};
-
-/* ************************************************************************
- *
- * Setup the architecture
- *
- */
-static void __init
-mpc8540ads_setup_arch(void)
-{
- struct ocp_def *def;
- struct ocp_gfar_data *einfo;
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq;
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- if (ppc_md.progress)
- ppc_md.progress("mpc8540ads_setup_arch()", 0);
-
- /* Set loops_per_jiffy to a half-way reasonable value,
- for use until calibrate_delay gets called. */
- loops_per_jiffy = freq / HZ;
-
-#ifdef CONFIG_PCI
- /* setup PCI host bridges */
- mpc85xx_setup_hose();
-#endif
-
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
-#ifdef CONFIG_SERIAL_8250
- mpc85xx_early_serial_map();
-#endif
-
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- /* Invalidate the entry we stole earlier the serial ports
- * should be properly mapped */
- invalidate_tlbcam_entry(NUM_TLBCAMS - 1);
-#endif
-
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 0);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enetaddr, 6);
- }
-
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 1);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enet1addr, 6);
- }
-
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 2);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enet2addr, 6);
- }
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
-#ifdef CONFIG_ROOT_NFS
- ROOT_DEV = Root_NFS;
-#else
- ROOT_DEV = Root_HDA1;
-#endif
-
- ocp_for_each_device(mpc85xx_update_paddr_ocp, &(binfo->bi_immr_base));
-}
-
-/* ************************************************************************ */
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- /* parse_bootinfo must always be called first */
- parse_bootinfo(find_bootinfo());
-
- /*
- * If we were passed in a board information, copy it into the
- * residual data area.
- */
- if (r3) {
- memcpy((void *) __res, (void *) (r3 + KERNELBASE),
- sizeof (bd_t));
- }
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- {
- bd_t *binfo = (bd_t *) __res;
-
- /* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */
- settlbcam(NUM_TLBCAMS - 1, binfo->bi_immr_base,
- binfo->bi_immr_base, MPC85xx_CCSRBAR_SIZE, _PAGE_IO, 0);
- }
-#endif
-
-#if defined(CONFIG_BLK_DEV_INITRD)
- /*
- * If the init RAM disk has been configured in, and there's a valid
- * starting address for it, set it up.
- */
- if (r4) {
- initrd_start = r4 + KERNELBASE;
- initrd_end = r5 + KERNELBASE;
- }
-#endif /* CONFIG_BLK_DEV_INITRD */
-
- /* Copy the kernel command line arguments to a safe place. */
-
- if (r6) {
- *(char *) (r7 + KERNELBASE) = 0;
- strcpy(cmd_line, (char *) (r6 + KERNELBASE));
- }
-
- /* setup the PowerPC module struct */
- ppc_md.setup_arch = mpc8540ads_setup_arch;
- ppc_md.show_cpuinfo = mpc85xx_ads_show_cpuinfo;
-
- ppc_md.init_IRQ = mpc85xx_ads_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
-
- ppc_md.restart = mpc85xx_restart;
- ppc_md.power_off = mpc85xx_power_off;
- ppc_md.halt = mpc85xx_halt;
-
- ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
-
- ppc_md.time_init = NULL;
- ppc_md.set_rtc_time = NULL;
- ppc_md.get_rtc_time = NULL;
- ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
-
-#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
- ppc_md.progress = gen550_progress;
-#endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
-
- if (ppc_md.progress)
- ppc_md.progress("mpc8540ads_init(): exit", 0);
-
- return;
-}
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/mpc8540_ads.h
- *
- * MPC8540ADS board definitions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __MACH_MPC8540ADS_H__
-#define __MACH_MPC8540ADS_H__
-
-#include <linux/config.h>
-#include <linux/serial.h>
-#include <linux/initrd.h>
-#include <syslib/ppc85xx_setup.h>
-#include <platforms/85xx/mpc85xx_ads_common.h>
-
-#define SERIAL_PORT_DFNS \
- STD_UART_OP(0) \
- STD_UART_OP(1)
-
-#endif /* __MACH_MPC8540ADS_H__ */
+++ /dev/null
-/*
- * arch/ppc/platform/85xx/mpc8555.c
- *
- * MPC8555 I/O descriptions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <asm/mpc85xx.h>
-#include <asm/ocp.h>
-
-/* These should be defined in platform code */
-extern struct ocp_gfar_data mpc85xx_tsec1_def;
-extern struct ocp_gfar_data mpc85xx_tsec2_def;
-extern struct ocp_mpc_i2c_data mpc85xx_i2c1_def;
-
-/* We use offsets for paddr since we do not know at compile time
- * what CCSRBAR is, platform code should fix this up in
- * setup_arch
- *
- * Only the first IRQ is given even if a device has
- * multiple lines associated with ita
- */
-struct ocp_def core_ocp[] = {
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_IIC,
- .index = 0,
- .paddr = MPC85xx_IIC1_OFFSET,
- .irq = MPC85xx_IRQ_IIC1,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_i2c1_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_16550,
- .index = 0,
- .paddr = MPC85xx_UART0_OFFSET,
- .irq = MPC85xx_IRQ_DUART,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_16550,
- .index = 1,
- .paddr = MPC85xx_UART1_OFFSET,
- .irq = MPC85xx_IRQ_DUART,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_GFAR,
- .index = 0,
- .paddr = MPC85xx_ENET1_OFFSET,
- .irq = MPC85xx_IRQ_TSEC1_TX,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_tsec1_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_GFAR,
- .index = 1,
- .paddr = MPC85xx_ENET2_OFFSET,
- .irq = MPC85xx_IRQ_TSEC2_TX,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_tsec2_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_DMA,
- .index = 0,
- .paddr = MPC85xx_DMA_OFFSET,
- .irq = MPC85xx_IRQ_DMA0,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_PERFMON,
- .index = 0,
- .paddr = MPC85xx_PERFMON_OFFSET,
- .irq = MPC85xx_IRQ_PERFMON,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_INVALID
- }
-};
+++ /dev/null
-/*
- * arch/ppc/platforms/mpc8555_cds.h
- *
- * MPC8555CDS board definitions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __MACH_MPC8555CDS_H__
-#define __MACH_MPC8555CDS_H__
-
-#include <linux/config.h>
-#include <linux/serial.h>
-#include <platforms/85xx/mpc85xx_cds_common.h>
-
-#define CPM_MAP_ADDR (CCSRBAR + MPC85xx_CPM_OFFSET)
-
-#endif /* __MACH_MPC8555CDS_H__ */
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/mpc8560.c
- *
- * MPC8560 I/O descriptions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <asm/mpc85xx.h>
-#include <asm/ocp.h>
-
-/* These should be defined in platform code */
-extern struct ocp_gfar_data mpc85xx_tsec1_def;
-extern struct ocp_gfar_data mpc85xx_tsec2_def;
-extern struct ocp_mpc_i2c_data mpc85xx_i2c1_def;
-
-/* We use offsets for paddr since we do not know at compile time
- * what CCSRBAR is, platform code should fix this up in
- * setup_arch
- *
- * Only the first IRQ is given even if a device has
- * multiple lines associated with ita
- */
-struct ocp_def core_ocp[] = {
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_IIC,
- .index = 0,
- .paddr = MPC85xx_IIC1_OFFSET,
- .irq = MPC85xx_IRQ_IIC1,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_i2c1_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_GFAR,
- .index = 0,
- .paddr = MPC85xx_ENET1_OFFSET,
- .irq = MPC85xx_IRQ_TSEC1_TX,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_tsec1_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_GFAR,
- .index = 1,
- .paddr = MPC85xx_ENET2_OFFSET,
- .irq = MPC85xx_IRQ_TSEC2_TX,
- .pm = OCP_CPM_NA,
- .additions = &mpc85xx_tsec2_def,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_DMA,
- .index = 0,
- .paddr = MPC85xx_DMA_OFFSET,
- .irq = MPC85xx_IRQ_DMA0,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_PERFMON,
- .index = 0,
- .paddr = MPC85xx_PERFMON_OFFSET,
- .irq = MPC85xx_IRQ_PERFMON,
- .pm = OCP_CPM_NA,
- },
- { .vendor = OCP_VENDOR_INVALID
- }
-};
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/mpc8560_ads.c
- *
- * MPC8560ADS board specific routines
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/reboot.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/serial.h>
-#include <linux/tty.h> /* for linux/serial_core.h */
-#include <linux/serial_core.h>
-#include <linux/initrd.h>
-#include <linux/module.h>
-
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/prom.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/pci-bridge.h>
-#include <asm/mpc85xx.h>
-#include <asm/irq.h>
-#include <asm/immap_85xx.h>
-#include <asm/kgdb.h>
-#include <asm/ocp.h>
-#include <asm/cpm2.h>
-#include <mm/mmu_decl.h>
-
-#include <syslib/cpm2_pic.h>
-#include <syslib/ppc85xx_common.h>
-#include <syslib/ppc85xx_setup.h>
-
-extern void cpm2_reset(void);
-
-struct ocp_gfar_data mpc85xx_tsec1_def = {
- .interruptTransmit = MPC85xx_IRQ_TSEC1_TX,
- .interruptError = MPC85xx_IRQ_TSEC1_ERROR,
- .interruptReceive = MPC85xx_IRQ_TSEC1_RX,
- .interruptPHY = MPC85xx_IRQ_EXT5,
- .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR
- | GFAR_HAS_RMON | GFAR_HAS_COALESCE
- | GFAR_HAS_PHY_INTR),
- .phyid = 0,
- .phyregidx = 0,
-};
-
-struct ocp_gfar_data mpc85xx_tsec2_def = {
- .interruptTransmit = MPC85xx_IRQ_TSEC2_TX,
- .interruptError = MPC85xx_IRQ_TSEC2_ERROR,
- .interruptReceive = MPC85xx_IRQ_TSEC2_RX,
- .interruptPHY = MPC85xx_IRQ_EXT5,
- .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR
- | GFAR_HAS_RMON | GFAR_HAS_COALESCE
- | GFAR_HAS_PHY_INTR),
- .phyid = 1,
- .phyregidx = 0,
-};
-
-struct ocp_fs_i2c_data mpc85xx_i2c1_def = {
- .flags = FS_I2C_SEPARATE_DFSRR,
-};
-
-/* ************************************************************************
- *
- * Setup the architecture
- *
- */
-
-static void __init
-mpc8560ads_setup_arch(void)
-{
- struct ocp_def *def;
- struct ocp_gfar_data *einfo;
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq;
-
- cpm2_reset();
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- if (ppc_md.progress)
- ppc_md.progress("mpc8560ads_setup_arch()", 0);
-
- /* Set loops_per_jiffy to a half-way reasonable value,
- for use until calibrate_delay gets called. */
- loops_per_jiffy = freq / HZ;
-
-#ifdef CONFIG_PCI
- /* setup PCI host bridges */
- mpc85xx_setup_hose();
-#endif
-
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 0);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enetaddr, 6);
- }
-
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 1);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enet1addr, 6);
- }
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
-#ifdef CONFIG_ROOT_NFS
- ROOT_DEV = Root_NFS;
-#else
- ROOT_DEV = Root_HDA1;
-#endif
-
- ocp_for_each_device(mpc85xx_update_paddr_ocp, &(binfo->bi_immr_base));
-}
-
-static irqreturn_t cpm2_cascade(int irq, void *dev_id, struct pt_regs *regs)
-{
- while ((irq = cpm2_get_irq(regs)) >= 0) {
- ppc_irq_dispatch_handler(regs, irq);
- }
- return IRQ_HANDLED;
-}
-
-static void __init
-mpc8560_ads_init_IRQ(void)
-{
- int i;
- volatile cpm2_map_t *immap = cpm2_immr;
-
- /* Setup OpenPIC */
- mpc85xx_ads_init_IRQ();
-
- /* disable all CPM interupts */
- immap->im_intctl.ic_simrh = 0x0;
- immap->im_intctl.ic_simrl = 0x0;
-
- for (i = CPM_IRQ_OFFSET; i < (NR_CPM_INTS + CPM_IRQ_OFFSET); i++)
- irq_desc[i].handler = &cpm2_pic;
-
- /* Initialize the default interrupt mapping priorities,
- * in case the boot rom changed something on us.
- */
- immap->im_intctl.ic_sicr = 0;
- immap->im_intctl.ic_scprrh = 0x05309770;
- immap->im_intctl.ic_scprrl = 0x05309770;
-
- request_irq(MPC85xx_IRQ_CPM, cpm2_cascade, SA_INTERRUPT, "cpm2_cascade", NULL);
-
- return;
-}
-
-
-
-/* ************************************************************************ */
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- /* parse_bootinfo must always be called first */
- parse_bootinfo(find_bootinfo());
-
- /*
- * If we were passed in a board information, copy it into the
- * residual data area.
- */
- if (r3) {
- memcpy((void *) __res, (void *) (r3 + KERNELBASE),
- sizeof (bd_t));
-
- }
-#if defined(CONFIG_BLK_DEV_INITRD)
- /*
- * If the init RAM disk has been configured in, and there's a valid
- * starting address for it, set it up.
- */
- if (r4) {
- initrd_start = r4 + KERNELBASE;
- initrd_end = r5 + KERNELBASE;
- }
-#endif /* CONFIG_BLK_DEV_INITRD */
-
- /* Copy the kernel command line arguments to a safe place. */
-
- if (r6) {
- *(char *) (r7 + KERNELBASE) = 0;
- strcpy(cmd_line, (char *) (r6 + KERNELBASE));
- }
-
- /* setup the PowerPC module struct */
- ppc_md.setup_arch = mpc8560ads_setup_arch;
- ppc_md.show_cpuinfo = mpc85xx_ads_show_cpuinfo;
-
- ppc_md.init_IRQ = mpc8560_ads_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
-
- ppc_md.restart = mpc85xx_restart;
- ppc_md.power_off = mpc85xx_power_off;
- ppc_md.halt = mpc85xx_halt;
-
- ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
-
- ppc_md.time_init = NULL;
- ppc_md.set_rtc_time = NULL;
- ppc_md.get_rtc_time = NULL;
- ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
-
- if (ppc_md.progress)
- ppc_md.progress("mpc8560ads_init(): exit", 0);
-
- return;
-}
+++ /dev/null
-/*
- * arch/ppc/platforms/mpc8560_ads.h
- *
- * MPC8540ADS board definitions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __MACH_MPC8560ADS_H
-#define __MACH_MPC8560ADS_H
-
-#include <linux/config.h>
-#include <syslib/ppc85xx_setup.h>
-#include <platforms/85xx/mpc85xx_ads_common.h>
-
-#define CPM_MAP_ADDR (CCSRBAR + MPC85xx_CPM_OFFSET)
-#define PHY_INTERRUPT MPC85xx_IRQ_EXT7
-
-#endif /* __MACH_MPC8560ADS_H */
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/mpc85xx_ads_common.c
- *
- * MPC85xx ADS board common routines
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/reboot.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/serial.h>
-#include <linux/module.h>
-
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/prom.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/pci-bridge.h>
-#include <asm/mpc85xx.h>
-#include <asm/irq.h>
-#include <asm/immap_85xx.h>
-#include <asm/ocp.h>
-
-#include <mm/mmu_decl.h>
-
-#include <platforms/85xx/mpc85xx_ads_common.h>
-
-#ifndef CONFIG_PCI
-unsigned long isa_io_base = 0;
-unsigned long isa_mem_base = 0;
-#endif
-
-extern unsigned long total_memory; /* in mm/init */
-
-unsigned char __res[sizeof (bd_t)];
-
-/* Internal interrupts are all Level Sensitive, and Positive Polarity */
-
-static u_char mpc85xx_ads_openpic_initsenses[] __initdata = {
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 0: L2 Cache */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 1: ECM */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 2: DDR DRAM */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 3: LBIU */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 4: DMA 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 5: DMA 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 6: DMA 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 7: DMA 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 8: PCI/PCI-X */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 9: RIO Inbound Port Write Error */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 10: RIO Doorbell Inbound */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 11: RIO Outbound Message */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 12: RIO Inbound Message */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 13: TSEC 0 Transmit */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 14: TSEC 0 Receive */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 15: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 16: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 17: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 18: TSEC 0 Receive/Transmit Error */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 19: TSEC 1 Transmit */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 20: TSEC 1 Receive */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 21: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 22: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 23: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 24: TSEC 1 Receive/Transmit Error */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 25: Fast Ethernet */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 26: DUART */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 27: I2C */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 28: Performance Monitor */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 29: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 30: CPM */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 31: Unused */
- 0x0, /* External 0: */
-#if defined(CONFIG_PCI)
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 1: PCI slot 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 2: PCI slot 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 3: PCI slot 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 4: PCI slot 3 */
-#else
- 0x0, /* External 1: */
- 0x0, /* External 2: */
- 0x0, /* External 3: */
- 0x0, /* External 4: */
-#endif
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 5: PHY */
- 0x0, /* External 6: */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 7: PHY */
- 0x0, /* External 8: */
- 0x0, /* External 9: */
- 0x0, /* External 10: */
- 0x0, /* External 11: */
-};
-
-/* ************************************************************************ */
-int
-mpc85xx_ads_show_cpuinfo(struct seq_file *m)
-{
- uint pvid, svid, phid1;
- uint memsize = total_memory;
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq;
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- pvid = mfspr(PVR);
- svid = mfspr(SVR);
-
- seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n");
-
- switch (svid & 0xffff0000) {
- case SVR_8540:
- seq_printf(m, "Machine\t\t: mpc8540ads\n");
- break;
- case SVR_8560:
- seq_printf(m, "Machine\t\t: mpc8560ads\n");
- break;
- default:
- seq_printf(m, "Machine\t\t: unknown\n");
- break;
- }
- seq_printf(m, "bus freq\t: %u.%.6u MHz\n", freq / 1000000,
- freq % 1000000);
- seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
- seq_printf(m, "SVR\t\t: 0x%x\n", svid);
-
- /* Display cpu Pll setting */
- phid1 = mfspr(HID1);
- seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
-
- /* Display the amount of memory */
- seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
-
- return 0;
-}
-
-void __init
-mpc85xx_ads_init_IRQ(void)
-{
- bd_t *binfo = (bd_t *) __res;
- /* Determine the Physical Address of the OpenPIC regs */
- phys_addr_t OpenPIC_PAddr =
- binfo->bi_immr_base + MPC85xx_OPENPIC_OFFSET;
- OpenPIC_Addr = ioremap(OpenPIC_PAddr, MPC85xx_OPENPIC_SIZE);
- OpenPIC_InitSenses = mpc85xx_ads_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof (mpc85xx_ads_openpic_initsenses);
-
- /* Skip reserved space and internal sources */
- openpic_set_sources(0, 32, OpenPIC_Addr + 0x10200);
- /* Map PIC IRQs 0-11 */
- openpic_set_sources(32, 12, OpenPIC_Addr + 0x10000);
-
- /* we let openpic interrupts starting from an offset, to
- * leave space for cascading interrupts underneath.
- */
- openpic_init(MPC85xx_OPENPIC_IRQ_OFFSET);
-
- return;
-}
-
-#ifdef CONFIG_PCI
-/*
- * interrupt routing
- */
-
-int
-mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
-{
- static char pci_irq_table[][4] =
- /*
- * This is little evil, but works around the fact
- * that revA boards have IDSEL starting at 18
- * and others boards (older) start at 12
- *
- * PCI IDSEL/INTPIN->INTLINE
- * A B C D
- */
- {
- {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 2 */
- {PIRQD, PIRQA, PIRQB, PIRQC},
- {PIRQC, PIRQD, PIRQA, PIRQB},
- {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 5 */
- {0, 0, 0, 0}, /* -- */
- {0, 0, 0, 0}, /* -- */
- {0, 0, 0, 0}, /* -- */
- {0, 0, 0, 0}, /* -- */
- {0, 0, 0, 0}, /* -- */
- {0, 0, 0, 0}, /* -- */
- {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 12 */
- {PIRQD, PIRQA, PIRQB, PIRQC},
- {PIRQC, PIRQD, PIRQA, PIRQB},
- {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 15 */
- {0, 0, 0, 0}, /* -- */
- {0, 0, 0, 0}, /* -- */
- {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 18 */
- {PIRQD, PIRQA, PIRQB, PIRQC},
- {PIRQC, PIRQD, PIRQA, PIRQB},
- {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 21 */
- };
-
- const long min_idsel = 2, max_idsel = 21, irqs_per_slot = 4;
- return PCI_IRQ_TABLE_LOOKUP;
-}
-
-int
-mpc85xx_exclude_device(u_char bus, u_char devfn)
-{
- if (bus == 0 && PCI_SLOT(devfn) == 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
- else
- return PCIBIOS_SUCCESSFUL;
-}
-
-#endif /* CONFIG_PCI */
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/mpc85xx_ads_common.h
- *
- * MPC85XX ADS common board definitions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __MACH_MPC85XX_ADS_H__
-#define __MACH_MPC85XX_ADS_H__
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <asm/ppcboot.h>
-
-#define BOARD_CCSRBAR ((uint)0xe0000000)
-#define BCSR_ADDR ((uint)0xf8000000)
-#define BCSR_SIZE ((uint)(32 * 1024))
-
-extern int mpc85xx_ads_show_cpuinfo(struct seq_file *m);
-extern void mpc85xx_ads_init_IRQ(void) __init;
-extern void mpc85xx_ads_map_io(void) __init;
-
-/* PCI interrupt controller */
-#define PIRQA MPC85xx_IRQ_EXT1
-#define PIRQB MPC85xx_IRQ_EXT2
-#define PIRQC MPC85xx_IRQ_EXT3
-#define PIRQD MPC85xx_IRQ_EXT4
-
-#define MPC85XX_PCI1_LOWER_IO 0x00000000
-#define MPC85XX_PCI1_UPPER_IO 0x00ffffff
-
-#define MPC85XX_PCI1_LOWER_MEM 0x80000000
-#define MPC85XX_PCI1_UPPER_MEM 0x9fffffff
-
-#define MPC85XX_PCI1_IO_BASE 0xe2000000
-#define MPC85XX_PCI1_MEM_OFFSET 0x00000000
-
-#define MPC85XX_PCI1_IO_SIZE 0x01000000
-
-#endif /* __MACH_MPC85XX_ADS_H__ */
+++ /dev/null
-/*
- * arch/ppc/platform/85xx/mpc85xx_cds_common.c
- *
- * MPC85xx CDS board specific routines
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor, Inc
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/reboot.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/serial.h>
-#include <linux/module.h>
-#include <linux/root_dev.h>
-#include <linux/initrd.h>
-#include <linux/tty.h>
-#include <linux/serial_core.h>
-
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/prom.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/pci-bridge.h>
-#include <asm/mpc85xx.h>
-#include <asm/irq.h>
-#include <asm/immap_85xx.h>
-#include <asm/immap_cpm2.h>
-#include <asm/ocp.h>
-#include <asm/kgdb.h>
-
-#include <mm/mmu_decl.h>
-#include <syslib/cpm2_pic.h>
-#include <syslib/ppc85xx_common.h>
-#include <syslib/ppc85xx_setup.h>
-
-
-#ifndef CONFIG_PCI
-unsigned long isa_io_base = 0;
-unsigned long isa_mem_base = 0;
-#endif
-
-extern unsigned long total_memory; /* in mm/init */
-
-unsigned char __res[sizeof (bd_t)];
-
-static int cds_pci_slot = 2;
-static volatile u8 * cadmus;
-
-/* Internal interrupts are all Level Sensitive, and Positive Polarity */
-
-static u_char mpc85xx_cds_openpic_initsenses[] __initdata = {
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 0: L2 Cache */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 1: ECM */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 2: DDR DRAM */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 3: LBIU */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 4: DMA 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 5: DMA 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 6: DMA 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 7: DMA 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 8: PCI/PCI-X */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 9: RIO Inbound Port Write Error */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 10: RIO Doorbell Inbound */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 11: RIO Outbound Message */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 12: RIO Inbound Message */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 13: TSEC 0 Transmit */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 14: TSEC 0 Receive */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 15: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 16: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 17: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 18: TSEC 0 Receive/Transmit Error */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 19: TSEC 1 Transmit */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 20: TSEC 1 Receive */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 21: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 22: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 23: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 24: TSEC 1 Receive/Transmit Error */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 25: Fast Ethernet */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 26: DUART */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 27: I2C */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 28: Performance Monitor */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 29: Unused */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 30: CPM */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* Internal 31: Unused */
-#if defined(CONFIG_PCI)
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 0: PCI1 slot */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 1: PCI1 slot */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 2: PCI1 slot */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 3: PCI1 slot */
-#else
- 0x0, /* External 0: */
- 0x0, /* External 1: */
- 0x0, /* External 2: */
- 0x0, /* External 3: */
-#endif
- 0x0, /* External 4: */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 5: PHY */
- 0x0, /* External 6: */
- 0x0, /* External 7: */
- 0x0, /* External 8: */
- 0x0, /* External 9: */
- 0x0, /* External 10: */
-#if defined(CONFIG_85xx_PCI2) && defined(CONFIG_PCI)
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 11: PCI2 slot 0 */
-#else
- 0x0, /* External 11: */
-#endif
-};
-
-struct ocp_gfar_data mpc85xx_tsec1_def = {
- .interruptTransmit = MPC85xx_IRQ_TSEC1_TX,
- .interruptError = MPC85xx_IRQ_TSEC1_ERROR,
- .interruptReceive = MPC85xx_IRQ_TSEC1_RX,
- .interruptPHY = MPC85xx_IRQ_EXT5,
- .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR |
- GFAR_HAS_PHY_INTR),
- .phyid = 0,
- .phyregidx = 0,
-};
-
-struct ocp_gfar_data mpc85xx_tsec2_def = {
- .interruptTransmit = MPC85xx_IRQ_TSEC2_TX,
- .interruptError = MPC85xx_IRQ_TSEC2_ERROR,
- .interruptReceive = MPC85xx_IRQ_TSEC2_RX,
- .interruptPHY = MPC85xx_IRQ_EXT5,
- .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR |
- GFAR_HAS_PHY_INTR),
- .phyid = 1,
- .phyregidx = 0,
-};
-
-struct ocp_fs_i2c_data mpc85xx_i2c1_def = {
- .flags = FS_I2C_SEPARATE_DFSRR,
-};
-
-/* ************************************************************************ */
-int
-mpc85xx_cds_show_cpuinfo(struct seq_file *m)
-{
- uint pvid, svid, phid1;
- uint memsize = total_memory;
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq;
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- pvid = mfspr(PVR);
- svid = mfspr(SVR);
-
- seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n");
- seq_printf(m, "Machine\t\t: CDS (%x)\n", cadmus[CM_VER]);
- seq_printf(m, "bus freq\t: %u.%.6u MHz\n", freq / 1000000,
- freq % 1000000);
- seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
- seq_printf(m, "SVR\t\t: 0x%x\n", svid);
-
- /* Display cpu Pll setting */
- phid1 = mfspr(HID1);
- seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
-
- /* Display the amount of memory */
- seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
-
- return 0;
-}
-
-#ifdef CONFIG_CPM2
-static void cpm2_cascade(int irq, void *dev_id, struct pt_regs *regs)
-{
- while((irq = cpm2_get_irq(regs)) >= 0)
- {
- ppc_irq_dispatch_handler(regs,irq);
- }
-}
-#endif /* CONFIG_CPM2 */
-
-void __init
-mpc85xx_cds_init_IRQ(void)
-{
- bd_t *binfo = (bd_t *) __res;
-#ifdef CONFIG_CPM2
- volatile cpm2_map_t *immap = cpm2_immr;
- int i;
-#endif
-
- /* Determine the Physical Address of the OpenPIC regs */
- phys_addr_t OpenPIC_PAddr = binfo->bi_immr_base + MPC85xx_OPENPIC_OFFSET;
- OpenPIC_Addr = ioremap(OpenPIC_PAddr, MPC85xx_OPENPIC_SIZE);
- OpenPIC_InitSenses = mpc85xx_cds_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof (mpc85xx_cds_openpic_initsenses);
-
- /* Skip reserved space and internal sources */
- openpic_set_sources(0, 32, OpenPIC_Addr + 0x10200);
- /* Map PIC IRQs 0-11 */
- openpic_set_sources(32, 12, OpenPIC_Addr + 0x10000);
-
- /* we let openpic interrupts starting from an offset, to
- * leave space for cascading interrupts underneath.
- */
- openpic_init(MPC85xx_OPENPIC_IRQ_OFFSET);
-
-#ifdef CONFIG_CPM2
- /* disable all CPM interupts */
- immap->im_intctl.ic_simrh = 0x0;
- immap->im_intctl.ic_simrl = 0x0;
-
- for (i = CPM_IRQ_OFFSET; i < (NR_CPM_INTS + CPM_IRQ_OFFSET); i++)
- irq_desc[i].handler = &cpm2_pic;
-
- /* Initialize the default interrupt mapping priorities,
- * in case the boot rom changed something on us.
- */
- immap->im_intctl.ic_sicr = 0;
- immap->im_intctl.ic_scprrh = 0x05309770;
- immap->im_intctl.ic_scprrl = 0x05309770;
-
- request_irq(MPC85xx_IRQ_CPM, cpm2_cascade, SA_INTERRUPT, "cpm2_cascade", NULL);
-#endif
-
- return;
-}
-
-#ifdef CONFIG_PCI
-/*
- * interrupt routing
- */
-int
-mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
-{
- struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
-
- if (!hose->index)
- {
- /* Handle PCI1 interrupts */
- char pci_irq_table[][4] =
- /*
- * PCI IDSEL/INTPIN->INTLINE
- * A B C D
- */
-
- /* Note IRQ assignment for slots is based on which slot the elysium is
- * in -- in this setup elysium is in slot #2 (this PIRQA as first
- * interrupt on slot */
- {
- { 0, 1, 2, 3 }, /* 16 - PMC */
- { 3, 0, 0, 0 }, /* 17 P2P (Tsi320) */
- { 0, 1, 2, 3 }, /* 18 - Slot 1 */
- { 1, 2, 3, 0 }, /* 19 - Slot 2 */
- { 2, 3, 0, 1 }, /* 20 - Slot 3 */
- { 3, 0, 1, 2 }, /* 21 - Slot 4 */
- };
-
- const long min_idsel = 16, max_idsel = 21, irqs_per_slot = 4;
- int i, j;
-
- for (i = 0; i < 6; i++)
- for (j = 0; j < 4; j++)
- pci_irq_table[i][j] =
- ((pci_irq_table[i][j] + 5 -
- cds_pci_slot) & 0x3) + PIRQ0A;
-
- return PCI_IRQ_TABLE_LOOKUP;
- } else {
- /* Handle PCI2 interrupts (if we have one) */
- char pci_irq_table[][4] =
- {
- /*
- * We only have one slot and one interrupt
- * going to PIRQA - PIRQD */
- { PIRQ1A, PIRQ1A, PIRQ1A, PIRQ1A }, /* 21 - slot 0 */
- };
-
- const long min_idsel = 21, max_idsel = 21, irqs_per_slot = 4;
-
- return PCI_IRQ_TABLE_LOOKUP;
- }
-}
-
-#define ARCADIA_HOST_BRIDGE_IDSEL 17
-#define ARCADIA_2ND_BRIDGE_IDSEL 3
-
-int
-mpc85xx_exclude_device(u_char bus, u_char devfn)
-{
- if (bus == 0 && PCI_SLOT(devfn) == 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-#if CONFIG_85xx_PCI2
- /* With the current code we know PCI2 will be bus 2, however this may
- * not be guarnteed */
- if (bus == 2 && PCI_SLOT(devfn) == 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-#endif
- /* We explicitly do not go past the Tundra 320 Bridge */
- if (bus == 1)
- return PCIBIOS_DEVICE_NOT_FOUND;
- if ((bus == 0) && (PCI_SLOT(devfn) == ARCADIA_2ND_BRIDGE_IDSEL))
- return PCIBIOS_DEVICE_NOT_FOUND;
- else
- return PCIBIOS_SUCCESSFUL;
-}
-#endif /* CONFIG_PCI */
-
-/* ************************************************************************
- *
- * Setup the architecture
- *
- */
-static void __init
-mpc85xx_cds_setup_arch(void)
-{
- struct ocp_def *def;
- struct ocp_gfar_data *einfo;
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq;
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- printk("mpc85xx_cds_setup_arch\n");
-
-#ifdef CONFIG_CPM2
- cpm2_reset();
-#endif
-
- cadmus = ioremap(CADMUS_BASE, CADMUS_SIZE);
- cds_pci_slot = ((cadmus[CM_CSR] >> 6) & 0x3) + 1;
- printk("CDS Version = %x in PCI slot %d\n", cadmus[CM_VER], cds_pci_slot);
-
- /* Set loops_per_jiffy to a half-way reasonable value,
- for use until calibrate_delay gets called. */
- loops_per_jiffy = freq / HZ;
-
-#ifdef CONFIG_PCI
- /* setup PCI host bridges */
- mpc85xx_setup_hose();
-#endif
-
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
-#ifdef CONFIG_SERIAL_8250
- mpc85xx_early_serial_map();
-#endif
-
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- /* Invalidate the entry we stole earlier the serial ports
- * should be properly mapped */
- invalidate_tlbcam_entry(NUM_TLBCAMS - 1);
-#endif
-
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 0);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enetaddr, 6);
- }
-
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 1);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enet1addr, 6);
- }
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
-#ifdef CONFIG_ROOT_NFS
- ROOT_DEV = Root_NFS;
-#else
- ROOT_DEV = Root_HDA1;
-#endif
-
- ocp_for_each_device(mpc85xx_update_paddr_ocp, &(binfo->bi_immr_base));
-}
-
-/* ************************************************************************ */
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- /* parse_bootinfo must always be called first */
- parse_bootinfo(find_bootinfo());
-
- /*
- * If we were passed in a board information, copy it into the
- * residual data area.
- */
- if (r3) {
- memcpy((void *) __res, (void *) (r3 + KERNELBASE),
- sizeof (bd_t));
-
- }
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- {
- bd_t *binfo = (bd_t *) __res;
-
- /* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */
- settlbcam(NUM_TLBCAMS - 1, binfo->bi_immr_base,
- binfo->bi_immr_base, MPC85xx_CCSRBAR_SIZE, _PAGE_IO, 0);
-
- }
-#endif
-
-#if defined(CONFIG_BLK_DEV_INITRD)
- /*
- * If the init RAM disk has been configured in, and there's a valid
- * starting address for it, set it up.
- */
- if (r4) {
- initrd_start = r4 + KERNELBASE;
- initrd_end = r5 + KERNELBASE;
- }
-#endif /* CONFIG_BLK_DEV_INITRD */
-
- /* Copy the kernel command line arguments to a safe place. */
-
- if (r6) {
- *(char *) (r7 + KERNELBASE) = 0;
- strcpy(cmd_line, (char *) (r6 + KERNELBASE));
- }
-
- /* setup the PowerPC module struct */
- ppc_md.setup_arch = mpc85xx_cds_setup_arch;
- ppc_md.show_cpuinfo = mpc85xx_cds_show_cpuinfo;
-
- ppc_md.init_IRQ = mpc85xx_cds_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
-
- ppc_md.restart = mpc85xx_restart;
- ppc_md.power_off = mpc85xx_power_off;
- ppc_md.halt = mpc85xx_halt;
-
- ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
-
- ppc_md.time_init = NULL;
- ppc_md.set_rtc_time = NULL;
- ppc_md.get_rtc_time = NULL;
- ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
-
-#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
- ppc_md.progress = gen550_progress;
-#endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
-
- if (ppc_md.progress)
- ppc_md.progress("mpc85xx_cds_init(): exit", 0);
-
- return;
-}
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/mpc85xx_cds_common.h
- *
- * MPC85xx CDS board definitions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor, Inc
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __MACH_MPC85XX_CDS_H__
-#define __MACH_MPC85XX_CDS_H__
-
-#include <linux/config.h>
-#include <linux/serial.h>
-#include <asm/ppcboot.h>
-#include <linux/initrd.h>
-#include <syslib/ppc85xx_setup.h>
-
-#define BOARD_CCSRBAR ((uint)0xe0000000)
-#define CCSRBAR_SIZE ((uint)1024*1024)
-
-/* CADMUS info */
-#define CADMUS_BASE (0xf8004000)
-#define CADMUS_SIZE (256)
-#define CM_VER (0)
-#define CM_CSR (1)
-#define CM_RST (2)
-
-/* PCI config */
-#define PCI1_CFG_ADDR_OFFSET (0x8000)
-#define PCI1_CFG_DATA_OFFSET (0x8004)
-
-#define PCI2_CFG_ADDR_OFFSET (0x9000)
-#define PCI2_CFG_DATA_OFFSET (0x9004)
-
-/* PCI interrupt controller */
-#define PIRQ0A MPC85xx_IRQ_EXT0
-#define PIRQ0B MPC85xx_IRQ_EXT1
-#define PIRQ0C MPC85xx_IRQ_EXT2
-#define PIRQ0D MPC85xx_IRQ_EXT3
-#define PIRQ1A MPC85xx_IRQ_EXT11
-
-/* PCI 1 memory map */
-#define MPC85XX_PCI1_LOWER_IO 0x00000000
-#define MPC85XX_PCI1_UPPER_IO 0x00ffffff
-
-#define MPC85XX_PCI1_LOWER_MEM 0x80000000
-#define MPC85XX_PCI1_UPPER_MEM 0x9fffffff
-
-#define MPC85XX_PCI1_IO_BASE 0xe2000000
-#define MPC85XX_PCI1_MEM_OFFSET 0x00000000
-
-#define MPC85XX_PCI1_IO_SIZE 0x01000000
-
-/* PCI 2 memory map */
-#define MPC85XX_PCI2_LOWER_IO 0x01000000
-#define MPC85XX_PCI2_UPPER_IO 0x01ffffff
-
-#define MPC85XX_PCI2_LOWER_MEM 0xa0000000
-#define MPC85XX_PCI2_UPPER_MEM 0xbfffffff
-
-#define MPC85XX_PCI2_IO_BASE 0xe3000000
-#define MPC85XX_PCI2_MEM_OFFSET 0x00000000
-
-#define MPC85XX_PCI2_IO_SIZE 0x01000000
-
-#define SERIAL_PORT_DFNS \
- STD_UART_OP(0) \
- STD_UART_OP(1)
-
-#endif /* __MACH_MPC85XX_CDS_H__ */
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/sbc8560.c
- *
- * Wind River SBC8560 board specific routines
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/reboot.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/serial.h>
-#include <linux/tty.h> /* for linux/serial_core.h */
-#include <linux/serial_core.h>
-#include <linux/module.h>
-
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/prom.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/pci-bridge.h>
-#include <asm/mpc85xx.h>
-#include <asm/irq.h>
-#include <asm/immap_85xx.h>
-#include <asm/kgdb.h>
-#include <asm/ocp.h>
-#include <mm/mmu_decl.h>
-
-#include <syslib/ppc85xx_common.h>
-#include <syslib/ppc85xx_setup.h>
-
-struct ocp_gfar_data mpc85xx_tsec1_def = {
- .interruptTransmit = MPC85xx_IRQ_TSEC1_TX,
- .interruptError = MPC85xx_IRQ_TSEC1_ERROR,
- .interruptReceive = MPC85xx_IRQ_TSEC1_RX,
- .interruptPHY = MPC85xx_IRQ_EXT6,
- .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR | GFAR_HAS_PHY_INTR),
- .phyid = 25,
- .phyregidx = 0,
-};
-
-struct ocp_gfar_data mpc85xx_tsec2_def = {
- .interruptTransmit = MPC85xx_IRQ_TSEC2_TX,
- .interruptError = MPC85xx_IRQ_TSEC2_ERROR,
- .interruptReceive = MPC85xx_IRQ_TSEC2_RX,
- .interruptPHY = MPC85xx_IRQ_EXT7,
- .flags = (GFAR_HAS_GIGABIT | GFAR_HAS_MULTI_INTR | GFAR_HAS_PHY_INTR),
- .phyid = 26,
- .phyregidx = 0,
-};
-
-struct ocp_fs_i2c_data mpc85xx_i2c1_def = {
- .flags = FS_I2C_SEPARATE_DFSRR,
-};
-
-
-#ifdef CONFIG_SERIAL_8250
-static void __init
-sbc8560_early_serial_map(void)
-{
- struct uart_port uart_req;
-
- /* Setup serial port access */
- memset(&uart_req, 0, sizeof (uart_req));
- uart_req.irq = MPC85xx_IRQ_EXT9;
- uart_req.flags = STD_COM_FLAGS;
- uart_req.uartclk = BASE_BAUD * 16;
- uart_req.iotype = SERIAL_IO_MEM;
- uart_req.mapbase = UARTA_ADDR;
- uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART0_SIZE);
-
-#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
- gen550_init(0, &uart_req);
-#endif
-
- if (early_serial_setup(&uart_req) != 0)
- printk("Early serial init of port 0 failed\n");
-
- /* Assume early_serial_setup() doesn't modify uart_req */
- uart_req.line = 1;
- uart_req.mapbase = UARTB_ADDR;
- uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART1_SIZE);
- uart_req.irq = MPC85xx_IRQ_EXT10;
-
-#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
- gen550_init(1, &uart_req);
-#endif
-
- if (early_serial_setup(&uart_req) != 0)
- printk("Early serial init of port 1 failed\n");
-}
-#endif
-
-/* ************************************************************************
- *
- * Setup the architecture
- *
- */
-static void __init
-sbc8560_setup_arch(void)
-{
- struct ocp_def *def;
- struct ocp_gfar_data *einfo;
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq;
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- if (ppc_md.progress)
- ppc_md.progress("sbc8560_setup_arch()", 0);
-
- /* Set loops_per_jiffy to a half-way reasonable value,
- for use until calibrate_delay gets called. */
- loops_per_jiffy = freq / HZ;
-
-#ifdef CONFIG_PCI
- /* setup PCI host bridges */
- mpc85xx_setup_hose();
-#endif
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-#ifdef CONFIG_SERIAL_8250
- sbc8560_early_serial_map();
-#endif
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- /* Invalidate the entry we stole earlier the serial ports
- * should be properly mapped */
- invalidate_tlbcam_entry(NUM_TLBCAMS - 1);
-#endif
-
- /* Set up MAC addresses for the Ethernet devices */
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 0);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enetaddr, 6);
- }
-
- def = ocp_get_one_device(OCP_VENDOR_FREESCALE, OCP_FUNC_GFAR, 1);
- if (def) {
- einfo = (struct ocp_gfar_data *) def->additions;
- memcpy(einfo->mac_addr, binfo->bi_enet1addr, 6);
- }
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
-#ifdef CONFIG_ROOT_NFS
- ROOT_DEV = Root_NFS;
-#else
- ROOT_DEV = Root_HDA1;
-#endif
-
- ocp_for_each_device(mpc85xx_update_paddr_ocp, &(binfo->bi_immr_base));
-}
-
-/* ************************************************************************ */
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- /* parse_bootinfo must always be called first */
- parse_bootinfo(find_bootinfo());
-
- /*
- * If we were passed in a board information, copy it into the
- * residual data area.
- */
- if (r3) {
- memcpy((void *) __res, (void *) (r3 + KERNELBASE),
- sizeof (bd_t));
- }
-
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- /* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */
- settlbcam(NUM_TLBCAMS - 1, UARTA_ADDR,
- UARTA_ADDR, 0x1000, _PAGE_IO, 0);
-#endif
-
-#if defined(CONFIG_BLK_DEV_INITRD)
- /*
- * If the init RAM disk has been configured in, and there's a valid
- * starting address for it, set it up.
- */
- if (r4) {
- initrd_start = r4 + KERNELBASE;
- initrd_end = r5 + KERNELBASE;
- }
-#endif /* CONFIG_BLK_DEV_INITRD */
-
- /* Copy the kernel command line arguments to a safe place. */
-
- if (r6) {
- *(char *) (r7 + KERNELBASE) = 0;
- strcpy(cmd_line, (char *) (r6 + KERNELBASE));
- }
-
- /* setup the PowerPC module struct */
- ppc_md.setup_arch = sbc8560_setup_arch;
- ppc_md.show_cpuinfo = sbc8560_show_cpuinfo;
-
- ppc_md.init_IRQ = sbc8560_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
-
- ppc_md.restart = mpc85xx_restart;
- ppc_md.power_off = mpc85xx_power_off;
- ppc_md.halt = mpc85xx_halt;
-
- ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
-
- ppc_md.time_init = NULL;
- ppc_md.set_rtc_time = NULL;
- ppc_md.get_rtc_time = NULL;
- ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
-
-#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
- ppc_md.progress = gen550_progress;
-#endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
-
- if (ppc_md.progress)
- ppc_md.progress("sbc8560_init(): exit", 0);
-}
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/sbc8560.h
- *
- * Wind River SBC8560 board definitions
- *
- * Copyright 2003 Motorola Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __MACH_SBC8560_H__
-#define __MACH_SBC8560_H__
-
-#include <linux/config.h>
-#include <linux/serial.h>
-#include <platforms/85xx/sbc85xx.h>
-
-#ifdef CONFIG_SERIAL_MANY_PORTS
-#define RS_TABLE_SIZE 64
-#else
-#define RS_TABLE_SIZE 2
-#endif
-
-/* Rate for the 1.8432 Mhz clock for the onboard serial chip */
-#define BASE_BAUD ( 1843200 / 16 )
-
-#ifdef CONFIG_SERIAL_DETECT_IRQ
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_SKIP_TEST|ASYNC_AUTO_IRQ)
-#else
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_SKIP_TEST)
-#endif
-
-#define STD_SERIAL_PORT_DFNS \
- { 0, BASE_BAUD, UARTA_ADDR, MPC85xx_IRQ_EXT9, STD_COM_FLAGS, /* ttyS0 */ \
- iomem_base: (u8 *)UARTA_ADDR, \
- io_type: SERIAL_IO_MEM }, \
- { 0, BASE_BAUD, UARTB_ADDR, MPC85xx_IRQ_EXT10, STD_COM_FLAGS, /* ttyS1 */ \
- iomem_base: (u8 *)UARTB_ADDR, \
- io_type: SERIAL_IO_MEM },
-
-#define SERIAL_PORT_DFNS \
- STD_SERIAL_PORT_DFNS
-
-#endif /* __MACH_SBC8560_H__ */
+++ /dev/null
-/*
- * arch/ppc/platform/85xx/sbc85xx.c
- *
- * WindRiver PowerQUICC III SBC85xx board common routines
- *
- * Copyright 2002, 2003 Motorola Inc.
- * Copyright 2004 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/reboot.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/serial.h>
-#include <linux/module.h>
-
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/prom.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/pci-bridge.h>
-#include <asm/mpc85xx.h>
-#include <asm/irq.h>
-#include <asm/immap_85xx.h>
-#include <asm/ocp.h>
-
-#include <mm/mmu_decl.h>
-
-#include <platforms/85xx/sbc85xx.h>
-
-unsigned char __res[sizeof (bd_t)];
-
-#ifndef CONFIG_PCI
-unsigned long isa_io_base = 0;
-unsigned long isa_mem_base = 0;
-unsigned long pci_dram_offset = 0;
-#endif
-
-extern unsigned long total_memory; /* in mm/init */
-
-/* Internal interrupts are all Level Sensitive, and Positive Polarity */
-
-static u_char sbc8560_openpic_initsenses[] __initdata = {
- (IRQ_POLARITY_POSITIVE), /* Internal 0: L2 Cache */
- (IRQ_POLARITY_POSITIVE), /* Internal 1: ECM */
- (IRQ_POLARITY_POSITIVE), /* Internal 2: DDR DRAM */
- (IRQ_POLARITY_POSITIVE), /* Internal 3: LBIU */
- (IRQ_POLARITY_POSITIVE), /* Internal 4: DMA 0 */
- (IRQ_POLARITY_POSITIVE), /* Internal 5: DMA 1 */
- (IRQ_POLARITY_POSITIVE), /* Internal 6: DMA 2 */
- (IRQ_POLARITY_POSITIVE), /* Internal 7: DMA 3 */
- (IRQ_POLARITY_POSITIVE), /* Internal 8: PCI/PCI-X */
- (IRQ_POLARITY_POSITIVE), /* Internal 9: RIO Inbound Port Write Error */
- (IRQ_POLARITY_POSITIVE), /* Internal 10: RIO Doorbell Inbound */
- (IRQ_POLARITY_POSITIVE), /* Internal 11: RIO Outbound Message */
- (IRQ_POLARITY_POSITIVE), /* Internal 12: RIO Inbound Message */
- (IRQ_POLARITY_POSITIVE), /* Internal 13: TSEC 0 Transmit */
- (IRQ_POLARITY_POSITIVE), /* Internal 14: TSEC 0 Receive */
- (IRQ_POLARITY_POSITIVE), /* Internal 15: Unused */
- (IRQ_POLARITY_POSITIVE), /* Internal 16: Unused */
- (IRQ_POLARITY_POSITIVE), /* Internal 17: Unused */
- (IRQ_POLARITY_POSITIVE), /* Internal 18: TSEC 0 Receive/Transmit Error */
- (IRQ_POLARITY_POSITIVE), /* Internal 19: TSEC 1 Transmit */
- (IRQ_POLARITY_POSITIVE), /* Internal 20: TSEC 1 Receive */
- (IRQ_POLARITY_POSITIVE), /* Internal 21: Unused */
- (IRQ_POLARITY_POSITIVE), /* Internal 22: Unused */
- (IRQ_POLARITY_POSITIVE), /* Internal 23: Unused */
- (IRQ_POLARITY_POSITIVE), /* Internal 24: TSEC 1 Receive/Transmit Error */
- (IRQ_POLARITY_POSITIVE), /* Internal 25: Fast Ethernet */
- (IRQ_POLARITY_POSITIVE), /* Internal 26: DUART */
- (IRQ_POLARITY_POSITIVE), /* Internal 27: I2C */
- (IRQ_POLARITY_POSITIVE), /* Internal 28: Performance Monitor */
- (IRQ_POLARITY_POSITIVE), /* Internal 29: Unused */
- (IRQ_POLARITY_POSITIVE), /* Internal 30: CPM */
- (IRQ_POLARITY_POSITIVE), /* Internal 31: Unused */
- 0x0, /* External 0: */
- 0x0, /* External 1: */
-#if defined(CONFIG_PCI)
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 2: PCI slot 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 3: PCI slot 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 4: PCI slot 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 5: PCI slot 3 */
-#else
- 0x0, /* External 2: */
- 0x0, /* External 3: */
- 0x0, /* External 4: */
- 0x0, /* External 5: */
-#endif
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 6: PHY */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 7: PHY */
- 0x0, /* External 8: */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* External 9: PHY */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* External 10: PHY */
- 0x0, /* External 11: */
-};
-
-/* ************************************************************************ */
-int
-sbc8560_show_cpuinfo(struct seq_file *m)
-{
- uint pvid, svid, phid1;
- uint memsize = total_memory;
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq;
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- pvid = mfspr(PVR);
- svid = mfspr(SVR);
-
- seq_printf(m, "Vendor\t\t: Wind River\n");
-
- switch (svid & 0xffff0000) {
- case SVR_8540:
- seq_printf(m, "Machine\t\t: hhmmm, this board isn't made yet!\n");
- break;
- case SVR_8560:
- seq_printf(m, "Machine\t\t: SBC8560\n");
- break;
- default:
- seq_printf(m, "Machine\t\t: unknown\n");
- break;
- }
- seq_printf(m, "bus freq\t: %u.%.6u MHz\n", freq / 1000000,
- freq % 1000000);
- seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
- seq_printf(m, "SVR\t\t: 0x%x\n", svid);
-
- /* Display cpu Pll setting */
- phid1 = mfspr(HID1);
- seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
-
- /* Display the amount of memory */
- seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
-
- return 0;
-}
-
-void __init
-sbc8560_init_IRQ(void)
-{
- bd_t *binfo = (bd_t *) __res;
- /* Determine the Physical Address of the OpenPIC regs */
- phys_addr_t OpenPIC_PAddr =
- binfo->bi_immr_base + MPC85xx_OPENPIC_OFFSET;
- OpenPIC_Addr = ioremap(OpenPIC_PAddr, MPC85xx_OPENPIC_SIZE);
- OpenPIC_InitSenses = sbc8560_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof (sbc8560_openpic_initsenses);
-
- /* Skip reserved space and internal sources */
- openpic_set_sources(0, 32, OpenPIC_Addr + 0x10200);
- /* Map PIC IRQs 0-11 */
- openpic_set_sources(32, 12, OpenPIC_Addr + 0x10000);
-
- /* we let openpic interrupts starting from an offset, to
- * leave space for cascading interrupts underneath.
- */
- openpic_init(MPC85xx_OPENPIC_IRQ_OFFSET);
-
- return;
-}
-
-/*
- * interrupt routing
- */
-
-#ifdef CONFIG_PCI
-int mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel,
- unsigned char pin)
-{
- static char pci_irq_table[][4] =
- /*
- * PCI IDSEL/INTPIN->INTLINE
- * A B C D
- */
- {
- {PIRQA, PIRQB, PIRQC, PIRQD},
- {PIRQD, PIRQA, PIRQB, PIRQC},
- {PIRQC, PIRQD, PIRQA, PIRQB},
- {PIRQB, PIRQC, PIRQD, PIRQA},
- };
-
- const long min_idsel = 12, max_idsel = 15, irqs_per_slot = 4;
- return PCI_IRQ_TABLE_LOOKUP;
-}
-
-int mpc85xx_exclude_device(u_char bus, u_char devfn)
-{
- if (bus == 0 && PCI_SLOT(devfn) == 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
- else
- return PCIBIOS_SUCCESSFUL;
-}
-#endif /* CONFIG_PCI */
+++ /dev/null
-/*
- * arch/ppc/platforms/85xx/sbc85xx.h
- *
- * WindRiver PowerQUICC III SBC85xx common board definitions
- *
- * Copyright 2003 Motorola Inc.
- * Copyright 2004 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __PLATFORMS_85XX_SBC85XX_H__
-#define __PLATFORMS_85XX_SBC85XX_H__
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <asm/ppcboot.h>
-
-#define BOARD_CCSRBAR ((uint)0xff700000)
-#define CCSRBAR_SIZE ((uint)1024*1024)
-
-#define BCSR_ADDR ((uint)0xfc000000)
-#define BCSR_SIZE ((uint)(16 * 1024 * 1024))
-
-#define UARTA_ADDR (BCSR_ADDR + 0x00700000)
-#define UARTB_ADDR (BCSR_ADDR + 0x00800000)
-#define RTC_DEVICE_ADDR (BCSR_ADDR + 0x00900000)
-#define EEPROM_ADDR (BCSR_ADDR + 0x00b00000)
-
-extern int sbc8560_show_cpuinfo(struct seq_file *m);
-extern void sbc8560_init_IRQ(void) __init;
-
-/* PCI interrupt controller */
-#define PIRQA MPC85xx_IRQ_EXT1
-#define PIRQB MPC85xx_IRQ_EXT2
-#define PIRQC MPC85xx_IRQ_EXT3
-#define PIRQD MPC85xx_IRQ_EXT4
-
-#define MPC85XX_PCI1_LOWER_IO 0x00000000
-#define MPC85XX_PCI1_UPPER_IO 0x00ffffff
-
-#define MPC85XX_PCI1_LOWER_MEM 0x80000000
-#define MPC85XX_PCI1_UPPER_MEM 0x9fffffff
-
-#define MPC85XX_PCI1_IO_BASE 0xe2000000
-#define MPC85XX_PCI1_MEM_OFFSET 0x00000000
-
-#define MPC85XX_PCI1_IO_SIZE 0x01000000
-
-#endif /* __PLATFORMS_85XX_SBC85XX_H__ */
+++ /dev/null
-/*
- * arch/ppc/platforms/lite5200.c
- *
- * Platform support file for the Freescale LITE5200 based on MPC52xx.
- * A maximum of this file should be moved to syslib/mpc52xx_?????
- * so that new platform based on MPC52xx need a minimal platform file
- * ( avoid code duplication )
- *
- *
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Based on the 2.4 code written by Kent Borg,
- * Dale Farnsworth <dale.farnsworth@mvista.com> and
- * Wolfgang Denk <wd@denx.de>
- *
- * Copyright 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright 2003 Motorola Inc.
- * Copyright 2003 MontaVista Software Inc.
- * Copyright 2003 DENX Software Engineering (wd@denx.de)
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#include <linux/config.h>
-#include <linux/initrd.h>
-#include <linux/seq_file.h>
-#include <linux/kdev_t.h>
-#include <linux/root_dev.h>
-#include <linux/console.h>
-
-#include <asm/bootinfo.h>
-#include <asm/io.h>
-#include <asm/ocp.h>
-#include <asm/mpc52xx.h>
-
-
-/* Board data given by U-Boot */
-bd_t __res;
-EXPORT_SYMBOL(__res); /* For modules */
-
-
-/* ======================================================================== */
-/* OCP device definition */
-/* For board/shared resources like PSCs */
-/* ======================================================================== */
-/* Be sure not to load conficting devices : e.g. loading the UART drivers for
- * PSC1 and then also loading a AC97 for this same PSC.
- * For details about how to create an entry, look in the doc of the concerned
- * driver ( eg drivers/serial/mpc52xx_uart.c for the PSC in uart mode )
- */
-
-struct ocp_def board_ocp[] = {
- {
- .vendor = OCP_VENDOR_FREESCALE,
- .function = OCP_FUNC_PSC_UART,
- .index = 0,
- .paddr = MPC52xx_PSC1,
- .irq = MPC52xx_PSC1_IRQ,
- .pm = OCP_CPM_NA,
- },
- { /* Terminating entry */
- .vendor = OCP_VENDOR_INVALID
- }
-};
-
-
-/* ======================================================================== */
-/* Platform specific code */
-/* ======================================================================== */
-
-static int
-icecube_show_cpuinfo(struct seq_file *m)
-{
- seq_printf(m, "machine\t\t: Freescale LITE5200\n");
- return 0;
-}
-
-static void __init
-icecube_setup_arch(void)
-{
-
- /* Add board OCP definitions */
- mpc52xx_add_board_devices(board_ocp);
-}
-
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- /* Generic MPC52xx platform initialization */
- /* TODO Create one and move a max of stuff in it.
- Put this init in the syslib */
-
- struct bi_record *bootinfo = find_bootinfo();
-
- if (bootinfo)
- parse_bootinfo(bootinfo);
- else {
- /* Load the bd_t board info structure */
- if (r3)
- memcpy((void*)&__res,(void*)(r3+KERNELBASE),
- sizeof(bd_t));
-
-#ifdef CONFIG_BLK_DEV_INITRD
- /* Load the initrd */
- if (r4) {
- initrd_start = r4 + KERNELBASE;
- initrd_end = r5 + KERNELBASE;
- }
-#endif
-
- /* Load the command line */
- if (r6) {
- *(char *)(r7+KERNELBASE) = 0;
- strcpy(cmd_line, (char *)(r6+KERNELBASE));
- }
- }
-
- /* BAT setup */
- mpc52xx_set_bat();
-
- /* No ISA bus AFAIK */
- isa_io_base = 0;
- isa_mem_base = 0;
-
- /* Setup the ppc_md struct */
- ppc_md.setup_arch = icecube_setup_arch;
- ppc_md.show_cpuinfo = icecube_show_cpuinfo;
- ppc_md.show_percpuinfo = NULL;
- ppc_md.init_IRQ = mpc52xx_init_irq;
- ppc_md.get_irq = mpc52xx_get_irq;
-
- ppc_md.find_end_of_memory = mpc52xx_find_end_of_memory;
- ppc_md.setup_io_mappings = mpc52xx_map_io;
-
- ppc_md.restart = mpc52xx_restart;
- ppc_md.power_off = mpc52xx_power_off;
- ppc_md.halt = mpc52xx_halt;
-
- /* No time keeper on the IceCube */
- ppc_md.time_init = NULL;
- ppc_md.get_rtc_time = NULL;
- ppc_md.set_rtc_time = NULL;
-
- ppc_md.calibrate_decr = mpc52xx_calibrate_decr;
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- ppc_md.progress = mpc52xx_progress;
-#endif
-}
-
+++ /dev/null
-/*
- * arch/ppc/platforms/lite5200.h
- *
- * Definitions for Freescale LITE5200 : MPC52xx Standard Development
- * Platform board support
- *
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#ifndef __PLATFORMS_LITE5200_H__
-#define __PLATFORMS_LITE5200_H__
-
-/* Serial port used for low-level debug */
-#define MPC52xx_PF_CONSOLE_PORT 0 /* PSC1 */
-
-
-#endif /* __PLATFORMS_LITE5200_H__ */
+++ /dev/null
-/*
- * arch/ppc/platforms/mpc5200.c
- *
- * OCP Definitions for the boards based on MPC5200 processor. Contains
- * definitions for every common peripherals. (Mostly all but PSCs)
- *
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Copyright 2004 Sylvain Munaut <tnt@246tNt.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#include <asm/ocp.h>
-#include <asm/mpc52xx.h>
-
-/* Here is the core_ocp struct.
- * With all the devices common to all board. Even if port multiplexing is
- * not setup for them (if the user don't want them, just don't select the
- * config option). The potentially conflicting devices (like PSCs) goes in
- * board specific file.
- */
-struct ocp_def core_ocp[] = {
- { /* Terminating entry */
- .vendor = OCP_VENDOR_INVALID
- }
-};
+++ /dev/null
-/*
- * A collection of structures, addresses, and values associated with
- * the Motorola MPC8260ADS/MPC8266ADS-PCI boards.
- * Copied from the RPX-Classic and SBS8260 stuff.
- *
- * Copyright (c) 2001 Dan Malek (dan@mvista.com)
- */
-#ifdef __KERNEL__
-#ifndef __MACH_ADS8260_DEFS
-#define __MACH_ADS8260_DEFS
-
-#include <linux/config.h>
-
-#include <asm/ppcboot.h>
-
-/* Memory map is configured by the PROM startup.
- * We just map a few things we need. The CSR is actually 4 byte-wide
- * registers that can be accessed as 8-, 16-, or 32-bit values.
- */
-#define CPM_MAP_ADDR ((uint)0xf0000000)
-#define BCSR_ADDR ((uint)0xf4500000)
-#define BCSR_SIZE ((uint)(32 * 1024))
-
-#define BOOTROM_RESTART_ADDR ((uint)0xff000104)
-
-/* The ADS8260 has 16, 32-bit wide control/status registers, accessed
- * only on word boundaries.
- * Not all are used (yet), or are interesting to us (yet).
- */
-
-/* Things of interest in the CSR.
-*/
-#define BCSR0_LED0 ((uint)0x02000000) /* 0 == on */
-#define BCSR0_LED1 ((uint)0x01000000) /* 0 == on */
-#define BCSR1_FETHIEN ((uint)0x08000000) /* 0 == enable */
-#define BCSR1_FETH_RST ((uint)0x04000000) /* 0 == reset */
-#define BCSR1_RS232_EN1 ((uint)0x02000000) /* 0 == enable */
-#define BCSR1_RS232_EN2 ((uint)0x01000000) /* 0 == enable */
-
-#define PHY_INTERRUPT SIU_INT_IRQ7
-
-#ifdef CONFIG_PCI
-/* PCI interrupt controller */
-#define PCI_INT_STAT_REG 0xF8200000
-#define PCI_INT_MASK_REG 0xF8200004
-#define PIRQA (NR_SIU_INTS + 0)
-#define PIRQB (NR_SIU_INTS + 1)
-#define PIRQC (NR_SIU_INTS + 2)
-#define PIRQD (NR_SIU_INTS + 3)
-
-/*
- * PCI memory map definitions for MPC8266ADS-PCI.
- *
- * processor view
- * local address PCI address target
- * 0x80000000-0x9FFFFFFF 0x80000000-0x9FFFFFFF PCI mem with prefetch
- * 0xA0000000-0xBFFFFFFF 0xA0000000-0xBFFFFFFF PCI mem w/o prefetch
- * 0xF4000000-0xF7FFFFFF 0x00000000-0x03FFFFFF PCI IO
- *
- * PCI master view
- * local address PCI address target
- * 0x00000000-0x1FFFFFFF 0x00000000-0x1FFFFFFF MPC8266 local memory
- */
-
-/* window for a PCI master to access MPC8266 memory */
-#define PCI_SLV_MEM_LOCAL 0x00000000 /* Local base */
-#define PCI_SLV_MEM_BUS 0x00000000 /* PCI base */
-
-/* window for the processor to access PCI memory with prefetching */
-#define PCI_MSTR_MEM_LOCAL 0x80000000 /* Local base */
-#define PCI_MSTR_MEM_BUS 0x80000000 /* PCI base */
-#define PCI_MSTR_MEM_SIZE 0x20000000 /* 512MB */
-
-/* window for the processor to access PCI memory without prefetching */
-#define PCI_MSTR_MEMIO_LOCAL 0xA0000000 /* Local base */
-#define PCI_MSTR_MEMIO_BUS 0xA0000000 /* PCI base */
-#define PCI_MSTR_MEMIO_SIZE 0x20000000 /* 512MB */
-
-/* window for the processor to access PCI I/O */
-#define PCI_MSTR_IO_LOCAL 0xF4000000 /* Local base */
-#define PCI_MSTR_IO_BUS 0x00000000 /* PCI base */
-#define PCI_MSTR_IO_SIZE 0x04000000 /* 64MB */
-
-#define _IO_BASE PCI_MSTR_IO_LOCAL
-#define _ISA_MEM_BASE PCI_MSTR_MEMIO_LOCAL
-#define PCI_DRAM_OFFSET PCI_SLV_MEM_BUS
-#endif /* CONFIG_PCI */
-
-#endif /* __MACH_ADS8260_DEFS */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * arch/ppc/platforms/pq2ads_setup.c
- *
- * PQ2ADS platform support
- *
- * Author: Kumar Gala <kumar.gala@freescale.com>
- * Derived from: est8260_setup.c by Allen Curtis
- *
- * Copyright 2004 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/seq_file.h>
-
-#include <asm/mpc8260.h>
-#include <asm/machdep.h>
-
-static void (*callback_setup_arch)(void);
-
-extern unsigned char __res[sizeof(bd_t)];
-
-extern void m8260_init(unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, unsigned long r7);
-
-static int
-pq2ads_show_cpuinfo(struct seq_file *m)
-{
- bd_t *binfo = (bd_t *)__res;
-
- seq_printf(m, "vendor\t\t: Motorola\n"
- "machine\t\t: PQ2 ADS PowerPC\n"
- "\n"
- "mem size\t\t: 0x%08lx\n"
- "console baud\t\t: %ld\n"
- "\n",
- binfo->bi_memsize,
- binfo->bi_baudrate);
- return 0;
-}
-
-static void __init
-pq2ads_setup_arch(void)
-{
- printk("PQ2 ADS Port\n");
- callback_setup_arch();
- *(volatile uint *)(BCSR_ADDR + 4) &= ~BCSR1_RS232_EN2;
-}
-
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- /* Generic 8260 platform initialization */
- m8260_init(r3, r4, r5, r6, r7);
-
- /* Anything special for this platform */
- ppc_md.show_cpuinfo = pq2ads_show_cpuinfo;
-
- callback_setup_arch = ppc_md.setup_arch;
- ppc_md.setup_arch = pq2ads_setup_arch;
-}
+++ /dev/null
-/*
- * arch/ppc/platforms/rpx8260.c
- *
- * RPC EP8260 platform support
- *
- * Author: Dan Malek <dan@embeddededge.com>
- * Derived from: pq2ads_setup.c by Kumar
- *
- * Copyright 2004 Embedded Edge, LLC
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/seq_file.h>
-
-#include <asm/mpc8260.h>
-#include <asm/machdep.h>
-
-static void (*callback_setup_arch)(void);
-
-extern unsigned char __res[sizeof(bd_t)];
-
-extern void m8260_init(unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, unsigned long r7);
-
-static int
-ep8260_show_cpuinfo(struct seq_file *m)
-{
- bd_t *binfo = (bd_t *)__res;
-
- seq_printf(m, "vendor\t\t: RPC\n"
- "machine\t\t: EP8260 PPC\n"
- "\n"
- "mem size\t\t: 0x%08x\n"
- "console baud\t\t: %d\n"
- "\n",
- binfo->bi_memsize,
- binfo->bi_baudrate);
- return 0;
-}
-
-static void __init
-ep8260_setup_arch(void)
-{
- printk("RPC EP8260 Port\n");
- callback_setup_arch();
-}
-
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- /* Generic 8260 platform initialization */
- m8260_init(r3, r4, r5, r6, r7);
-
- /* Anything special for this platform */
- ppc_md.show_cpuinfo = ep8260_show_cpuinfo;
-
- callback_setup_arch = ppc_md.setup_arch;
- ppc_md.setup_arch = ep8260_setup_arch;
-}
+++ /dev/null
-/*
- * A collection of structures, addresses, and values associated with
- * the Embedded Planet RPX6 (or RPX Super) MPC8260 board.
- * Copied from the RPX-Classic and SBS8260 stuff.
- *
- * Copyright (c) 2001 Dan Malek <dan@embeddededge.com>
- */
-#ifdef __KERNEL__
-#ifndef __ASM_PLATFORMS_RPX8260_H__
-#define __ASM_PLATFORMS_RPX8260_H__
-
-/* A Board Information structure that is given to a program when
- * prom starts it up.
- */
-typedef struct bd_info {
- unsigned int bi_memstart; /* Memory start address */
- unsigned int bi_memsize; /* Memory (end) size in bytes */
- unsigned int bi_nvsize; /* NVRAM size in bytes (can be 0) */
- unsigned int bi_intfreq; /* Internal Freq, in Hz */
- unsigned int bi_busfreq; /* Bus Freq, in MHz */
- unsigned int bi_cpmfreq; /* CPM Freq, in MHz */
- unsigned int bi_brgfreq; /* BRG Freq, in MHz */
- unsigned int bi_vco; /* VCO Out from PLL */
- unsigned int bi_baudrate; /* Default console baud rate */
- unsigned int bi_immr; /* IMMR when called from boot rom */
- unsigned char bi_enetaddr[6];
-} bd_t;
-
-extern bd_t m8xx_board_info;
-
-/* Memory map is configured by the PROM startup.
- * We just map a few things we need. The CSR is actually 4 byte-wide
- * registers that can be accessed as 8-, 16-, or 32-bit values.
- */
-#define CPM_MAP_ADDR ((uint)0xf0000000)
-#define RPX_CSR_ADDR ((uint)0xfa000000)
-#define RPX_CSR_SIZE ((uint)(512 * 1024))
-#define RPX_NVRTC_ADDR ((uint)0xfa080000)
-#define RPX_NVRTC_SIZE ((uint)(512 * 1024))
-
-/* The RPX6 has 16, byte wide control/status registers.
- * Not all are used (yet).
- */
-extern volatile u_char *rpx6_csr_addr;
-
-/* Things of interest in the CSR.
-*/
-#define BCSR0_ID_MASK ((u_char)0xf0) /* Read only */
-#define BCSR0_SWITCH_MASK ((u_char)0x0f) /* Read only */
-#define BCSR1_XCVR_SMC1 ((u_char)0x80)
-#define BCSR1_XCVR_SMC2 ((u_char)0x40)
-#define BCSR2_FLASH_WENABLE ((u_char)0x20)
-#define BCSR2_NVRAM_ENABLE ((u_char)0x10)
-#define BCSR2_ALT_IRQ2 ((u_char)0x08)
-#define BCSR2_ALT_IRQ3 ((u_char)0x04)
-#define BCSR2_PRST ((u_char)0x02) /* Force reset */
-#define BCSR2_ENPRST ((u_char)0x01) /* Enable POR */
-#define BCSR3_MODCLK_MASK ((u_char)0xe0)
-#define BCSR3_ENCLKHDR ((u_char)0x10)
-#define BCSR3_LED5 ((u_char)0x04) /* 0 == on */
-#define BCSR3_LED6 ((u_char)0x02) /* 0 == on */
-#define BCSR3_LED7 ((u_char)0x01) /* 0 == on */
-#define BCSR4_EN_PHY ((u_char)0x80) /* Enable PHY */
-#define BCSR4_EN_MII ((u_char)0x40) /* Enable PHY */
-#define BCSR4_MII_READ ((u_char)0x04)
-#define BCSR4_MII_MDC ((u_char)0x02)
-#define BCSR4_MII_MDIO ((u_char)0x01)
-#define BCSR13_FETH_IRQMASK ((u_char)0xf0)
-#define BCSR15_FETH_IRQ ((u_char)0x20)
-
-#define PHY_INTERRUPT SIU_INT_IRQ7
-
-#endif /* __ASM_PLATFORMS_RPX8260_H__ */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * General Purpose functions for the global management of the
- * 8260 Communication Processor Module.
- * Copyright (c) 1999 Dan Malek (dmalek@jlc.net)
- * Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com)
- * 2.3.99 Updates
- *
- * In addition to the individual control of the communication
- * channels, there are a few functions that globally affect the
- * communication processor.
- *
- * Buffer descriptors must be allocated from the dual ported memory
- * space. The allocator for that is here. When the communication
- * process is reset, we reclaim the memory available. There is
- * currently no deallocator for this memory.
- */
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/bootmem.h>
-#include <linux/module.h>
-#include <asm/irq.h>
-#include <asm/mpc8260.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/immap_cpm2.h>
-#include <asm/cpm2.h>
-#include <asm/rheap.h>
-
-static void cpm2_dpinit(void);
-cpm_cpm2_t *cpmp; /* Pointer to comm processor space */
-
-/* We allocate this here because it is used almost exclusively for
- * the communication processor devices.
- */
-cpm2_map_t *cpm2_immr;
-
-void
-cpm2_reset(void)
-{
- cpm2_immr = (cpm2_map_t *)CPM_MAP_ADDR;
-
- /* Reclaim the DP memory for our use.
- */
- cpm2_dpinit();
-
- /* Tell everyone where the comm processor resides.
- */
- cpmp = &cpm2_immr->im_cpm;
-}
-
-/* Set a baud rate generator. This needs lots of work. There are
- * eight BRGs, which can be connected to the CPM channels or output
- * as clocks. The BRGs are in two different block of internal
- * memory mapped space.
- * The baud rate clock is the system clock divided by something.
- * It was set up long ago during the initial boot phase and is
- * is given to us.
- * Baud rate clocks are zero-based in the driver code (as that maps
- * to port numbers). Documentation uses 1-based numbering.
- */
-#define BRG_INT_CLK (((bd_t *)__res)->bi_brgfreq)
-#define BRG_UART_CLK (BRG_INT_CLK/16)
-
-/* This function is used by UARTS, or anything else that uses a 16x
- * oversampled clock.
- */
-void
-cpm2_setbrg(uint brg, uint rate)
-{
- volatile uint *bp;
-
- /* This is good enough to get SMCs running.....
- */
- if (brg < 4) {
- bp = (uint *)&cpm2_immr->im_brgc1;
- }
- else {
- bp = (uint *)&cpm2_immr->im_brgc5;
- brg -= 4;
- }
- bp += brg;
- *bp = ((BRG_UART_CLK / rate) << 1) | CPM_BRG_EN;
-}
-
-/* This function is used to set high speed synchronous baud rate
- * clocks.
- */
-void
-cpm2_fastbrg(uint brg, uint rate, int div16)
-{
- volatile uint *bp;
-
- if (brg < 4) {
- bp = (uint *)&cpm2_immr->im_brgc1;
- }
- else {
- bp = (uint *)&cpm2_immr->im_brgc5;
- brg -= 4;
- }
- bp += brg;
- *bp = ((BRG_INT_CLK / rate) << 1) | CPM_BRG_EN;
- if (div16)
- *bp |= CPM_BRG_DIV16;
-}
-
-/*
- * dpalloc / dpfree bits.
- */
-static spinlock_t cpm_dpmem_lock;
-/* 16 blocks should be enough to satisfy all requests
- * until the memory subsystem goes up... */
-static rh_block_t cpm_boot_dpmem_rh_block[16];
-static rh_info_t cpm_dpmem_info;
-
-static void cpm2_dpinit(void)
-{
- void *dprambase = &((cpm2_map_t *)CPM_MAP_ADDR)->im_dprambase;
-
- spin_lock_init(&cpm_dpmem_lock);
-
- /* initialize the info header */
- rh_init(&cpm_dpmem_info, 1,
- sizeof(cpm_boot_dpmem_rh_block) /
- sizeof(cpm_boot_dpmem_rh_block[0]),
- cpm_boot_dpmem_rh_block);
-
- /* Attach the usable dpmem area */
- /* XXX: This is actually crap. CPM_DATAONLY_BASE and
- * CPM_DATAONLY_SIZE is only a subset of the available dpram. It
- * varies with the processor and the microcode patches activated.
- * But the following should be at least safe.
- */
- rh_attach_region(&cpm_dpmem_info, dprambase + CPM_DATAONLY_BASE,
- CPM_DATAONLY_SIZE);
-}
-
-/* This function used to return an index into the DPRAM area.
- * Now it returns the actuall physical address of that area.
- * use cpm2_dpram_offset() to get the index
- */
-void *cpm2_dpalloc(uint size, uint align)
-{
- void *start;
- unsigned long flags;
-
- spin_lock_irqsave(&cpm_dpmem_lock, flags);
- cpm_dpmem_info.alignment = align;
- start = rh_alloc(&cpm_dpmem_info, size, "commproc");
- spin_unlock_irqrestore(&cpm_dpmem_lock, flags);
-
- return start;
-}
-EXPORT_SYMBOL(cpm2_dpalloc);
-
-int cpm2_dpfree(void *addr)
-{
- int ret;
- unsigned long flags;
-
- spin_lock_irqsave(&cpm_dpmem_lock, flags);
- ret = rh_free(&cpm_dpmem_info, addr);
- spin_unlock_irqrestore(&cpm_dpmem_lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(cpm2_dpfree);
-
-/* not sure if this is ever needed */
-void *cpm2_dpalloc_fixed(void *addr, uint size, uint align)
-{
- void *start;
- unsigned long flags;
-
- spin_lock_irqsave(&cpm_dpmem_lock, flags);
- cpm_dpmem_info.alignment = align;
- start = rh_alloc_fixed(&cpm_dpmem_info, addr, size, "commproc");
- spin_unlock_irqrestore(&cpm_dpmem_lock, flags);
-
- return start;
-}
-EXPORT_SYMBOL(cpm2_dpalloc_fixed);
-
-void cpm2_dpdump(void)
-{
- rh_dump(&cpm_dpmem_info);
-}
-EXPORT_SYMBOL(cpm2_dpdump);
-
-uint cpm2_dpram_offset(void *addr)
-{
- return (uint)((u_char *)addr -
- ((uint)((cpm2_map_t *)CPM_MAP_ADDR)->im_dprambase));
-}
-EXPORT_SYMBOL(cpm2_dpram_offset);
-
-void *cpm2_dpram_addr(int offset)
-{
- return (void *)&((cpm2_map_t *)CPM_MAP_ADDR)->im_dprambase[offset];
-}
-EXPORT_SYMBOL(cpm2_dpram_addr);
+++ /dev/null
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <asm/irq.h>
-#include <asm/immap_cpm2.h>
-#include <asm/mpc8260.h>
-#include "cpm2_pic.h"
-
-/* The CPM2 internal interrupt controller. It is usually
- * the only interrupt controller.
- * There are two 32-bit registers (high/low) for up to 64
- * possible interrupts.
- *
- * Now, the fun starts.....Interrupt Numbers DO NOT MAP
- * in a simple arithmetic fashion to mask or pending registers.
- * That is, interrupt 4 does not map to bit position 4.
- * We create two tables, indexed by vector number, to indicate
- * which register to use and which bit in the register to use.
- */
-static u_char irq_to_siureg[] = {
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-static u_char irq_to_siubit[] = {
- 31, 16, 17, 18, 19, 20, 21, 22,
- 23, 24, 25, 26, 27, 28, 29, 30,
- 29, 30, 16, 17, 18, 19, 20, 21,
- 22, 23, 24, 25, 26, 27, 28, 31,
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 9, 10, 11, 12, 13, 14, 15,
- 15, 14, 13, 12, 11, 10, 9, 8,
- 7, 6, 5, 4, 3, 2, 1, 0
-};
-
-static void cpm2_mask_irq(unsigned int irq_nr)
-{
- int bit, word;
- volatile uint *simr;
-
- bit = irq_to_siubit[irq_nr];
- word = irq_to_siureg[irq_nr];
-
- simr = &(cpm2_immr->im_intctl.ic_simrh);
- ppc_cached_irq_mask[word] &= ~(1 << (31 - bit));
- simr[word] = ppc_cached_irq_mask[word];
-}
-
-static void cpm2_unmask_irq(unsigned int irq_nr)
-{
- int bit, word;
- volatile uint *simr;
-
- bit = irq_to_siubit[irq_nr];
- word = irq_to_siureg[irq_nr];
-
- simr = &(cpm2_immr->im_intctl.ic_simrh);
- ppc_cached_irq_mask[word] |= (1 << (31 - bit));
- simr[word] = ppc_cached_irq_mask[word];
-}
-
-static void cpm2_mask_and_ack(unsigned int irq_nr)
-{
- int bit, word;
- volatile uint *simr, *sipnr;
-
- bit = irq_to_siubit[irq_nr];
- word = irq_to_siureg[irq_nr];
-
- simr = &(cpm2_immr->im_intctl.ic_simrh);
- sipnr = &(cpm2_immr->im_intctl.ic_sipnrh);
- ppc_cached_irq_mask[word] &= ~(1 << (31 - bit));
- simr[word] = ppc_cached_irq_mask[word];
- sipnr[word] = 1 << (31 - bit);
-}
-
-static void cpm2_end_irq(unsigned int irq_nr)
-{
- int bit, word;
- volatile uint *simr;
-
- if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))
- && irq_desc[irq_nr].action) {
-
- bit = irq_to_siubit[irq_nr];
- word = irq_to_siureg[irq_nr];
-
- simr = &(cpm2_immr->im_intctl.ic_simrh);
- ppc_cached_irq_mask[word] |= (1 << (31 - bit));
- simr[word] = ppc_cached_irq_mask[word];
- }
-}
-
-struct hw_interrupt_type cpm2_pic = {
- " CPM2 SIU ",
- NULL,
- NULL,
- cpm2_unmask_irq,
- cpm2_mask_irq,
- cpm2_mask_and_ack,
- cpm2_end_irq,
- 0
-};
-
-
-int
-cpm2_get_irq(struct pt_regs *regs)
-{
- int irq;
- unsigned long bits;
-
- /* For CPM2, read the SIVEC register and shift the bits down
- * to get the irq number. */
- bits = cpm2_immr->im_intctl.ic_sivec;
- irq = bits >> 26;
-
- if (irq == 0)
- return(-1);
-#if 0
- irq += ppc8260_pic.irq_offset;
-#endif
- return irq;
-}
-
+++ /dev/null
-#ifndef _PPC_KERNEL_CPM2_H
-#define _PPC_KERNEL_CPM2_H
-
-#include <linux/irq.h>
-
-extern struct hw_interrupt_type cpm2_pic;
-
-void cpm2_pic_init(void);
-void cpm2_do_IRQ(struct pt_regs *regs,
- int cpu);
-int cpm2_get_irq(struct pt_regs *regs);
-
-#endif /* _PPC_KERNEL_CPM2_H */
+++ /dev/null
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004 Red Hat, Inc.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-
-#include <asm/byteorder.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <asm/immap_cpm2.h>
-#include <asm/mpc8260.h>
-
-#include "m8260_pci.h"
-
-
-/* PCI bus configuration registers.
- */
-
-static void __init m8260_setup_pci(struct pci_controller *hose)
-{
- volatile cpm2_map_t *immap = cpm2_immr;
- unsigned long pocmr;
- u16 tempShort;
-
-#ifndef CONFIG_ATC /* already done in U-Boot */
- /*
- * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]),
- * and local bus for PCI (SIUMCR [LBPC]).
- */
- immap->im_siu_conf.siu_82xx.sc_siumcr = 0x00640000;
-#endif
-
- /* Make PCI lowest priority */
- /* Each 4 bits is a device bus request and the MS 4bits
- is highest priority */
- /* Bus 4bit value
- --- ----------
- CPM high 0b0000
- CPM middle 0b0001
- CPM low 0b0010
- PCI reguest 0b0011
- Reserved 0b0100
- Reserved 0b0101
- Internal Core 0b0110
- External Master 1 0b0111
- External Master 2 0b1000
- External Master 3 0b1001
- The rest are reserved */
- immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x61207893;
-
- /* Park bus on core while modifying PCI Bus accesses */
- immap->im_siu_conf.siu_82xx.sc_ppc_acr = 0x6;
-
- /*
- * Set up master window that allows the CPU to access PCI space. This
- * window is set up using the first SIU PCIBR registers.
- */
- immap->im_memctl.memc_pcimsk0 = MPC826x_PCI_MASK;
- immap->im_memctl.memc_pcibr0 = MPC826x_PCI_BASE | PCIBR_ENABLE;
-
- /* Disable machine check on no response or target abort */
- immap->im_pci.pci_emr = cpu_to_le32(0x1fe7);
- /* Release PCI RST (by default the PCI RST signal is held low) */
- immap->im_pci.pci_gcr = cpu_to_le32(PCIGCR_PCI_BUS_EN);
-
- /* give it some time */
- mdelay(1);
-
- /*
- * Set up master window that allows the CPU to access PCI Memory (prefetch)
- * space. This window is set up using the first set of Outbound ATU registers.
- */
- immap->im_pci.pci_potar0 = cpu_to_le32(MPC826x_PCI_LOWER_MEM >> 12);
- immap->im_pci.pci_pobar0 = cpu_to_le32((MPC826x_PCI_LOWER_MEM - MPC826x_PCI_MEM_OFFSET) >> 12);
- pocmr = ((MPC826x_PCI_UPPER_MEM - MPC826x_PCI_LOWER_MEM) >> 12) ^ 0xfffff;
- immap->im_pci.pci_pocmr0 = cpu_to_le32(pocmr | POCMR_ENABLE | POCMR_PREFETCH_EN);
-
- /*
- * Set up master window that allows the CPU to access PCI Memory (non-prefetch)
- * space. This window is set up using the second set of Outbound ATU registers.
- */
- immap->im_pci.pci_potar1 = cpu_to_le32(MPC826x_PCI_LOWER_MMIO >> 12);
- immap->im_pci.pci_pobar1 = cpu_to_le32((MPC826x_PCI_LOWER_MMIO - MPC826x_PCI_MMIO_OFFSET) >> 12);
- pocmr = ((MPC826x_PCI_UPPER_MMIO - MPC826x_PCI_LOWER_MMIO) >> 12) ^ 0xfffff;
- immap->im_pci.pci_pocmr1 = cpu_to_le32(pocmr | POCMR_ENABLE);
-
- /*
- * Set up master window that allows the CPU to access PCI IO space. This window
- * is set up using the third set of Outbound ATU registers.
- */
- immap->im_pci.pci_potar2 = cpu_to_le32(MPC826x_PCI_IO_BASE >> 12);
- immap->im_pci.pci_pobar2 = cpu_to_le32(MPC826x_PCI_LOWER_IO >> 12);
- pocmr = ((MPC826x_PCI_UPPER_IO - MPC826x_PCI_LOWER_IO) >> 12) ^ 0xfffff;
- immap->im_pci.pci_pocmr2 = cpu_to_le32(pocmr | POCMR_ENABLE | POCMR_PCI_IO);
-
- /*
- * Set up slave window that allows PCI masters to access MPC826x local memory.
- * This window is set up using the first set of Inbound ATU registers
- */
-
- immap->im_pci.pci_pitar0 = cpu_to_le32(MPC826x_PCI_SLAVE_MEM_LOCAL >> 12);
- immap->im_pci.pci_pibar0 = cpu_to_le32(MPC826x_PCI_SLAVE_MEM_BUS >> 12);
- pocmr = ((MPC826x_PCI_SLAVE_MEM_SIZE-1) >> 12) ^ 0xfffff;
- immap->im_pci.pci_picmr0 = cpu_to_le32(pocmr | PICMR_ENABLE | PICMR_PREFETCH_EN);
-
- /* See above for description - puts PCI request as highest priority */
- immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x03124567;
-
- /* Park the bus on the PCI */
- immap->im_siu_conf.siu_82xx.sc_ppc_acr = PPC_ACR_BUS_PARK_PCI;
-
- /* Host mode - specify the bridge as a host-PCI bridge */
- early_write_config_word(hose, 0, 0, PCI_CLASS_DEVICE, PCI_CLASS_BRIDGE_HOST);
-
- /* Enable the host bridge to be a master on the PCI bus, and to act as a PCI memory target */
- early_read_config_word(hose, 0, 0, PCI_COMMAND, &tempShort);
- early_write_config_word(hose, 0, 0, PCI_COMMAND,
- tempShort | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
-}
-
-void __init m8260_find_bridges(void)
-{
- extern int pci_assign_all_busses;
- struct pci_controller * hose;
-
- pci_assign_all_busses = 1;
-
- hose = pcibios_alloc_controller();
-
- if (!hose)
- return;
-
- ppc_md.pci_swizzle = common_swizzle;
-
- hose->first_busno = 0;
- hose->bus_offset = 0;
- hose->last_busno = 0xff;
-
- setup_m8260_indirect_pci(hose,
- (unsigned long)&cpm2_immr->im_pci.pci_cfg_addr,
- (unsigned long)&cpm2_immr->im_pci.pci_cfg_data);
-
- m8260_setup_pci(hose);
- hose->pci_mem_offset = MPC826x_PCI_MEM_OFFSET;
-
- isa_io_base =
- (unsigned long) ioremap(MPC826x_PCI_IO_BASE,
- MPC826x_PCI_IO_SIZE);
- hose->io_base_virt = (void *) isa_io_base;
-
- /* setup resources */
- pci_init_resource(&hose->mem_resources[0],
- MPC826x_PCI_LOWER_MEM,
- MPC826x_PCI_UPPER_MEM,
- IORESOURCE_MEM|IORESOURCE_PREFETCH, "PCI prefetchable memory");
-
- pci_init_resource(&hose->mem_resources[1],
- MPC826x_PCI_LOWER_MMIO,
- MPC826x_PCI_UPPER_MMIO,
- IORESOURCE_MEM, "PCI memory");
-
- pci_init_resource(&hose->io_resource,
- MPC826x_PCI_LOWER_IO,
- MPC826x_PCI_UPPER_IO,
- IORESOURCE_IO, "PCI I/O");
-}
+++ /dev/null
-
-#ifndef _PPC_KERNEL_M8260_PCI_H
-#define _PPC_KERNEL_M8260_PCI_H
-
-#include <asm/m8260_pci.h>
-
-/*
- * Local->PCI map (from CPU) controlled by
- * MPC826x master window
- *
- * 0x80000000 - 0xBFFFFFFF Total CPU2PCI space PCIBR0
- *
- * 0x80000000 - 0x9FFFFFFF PCI Mem with prefetch (Outbound ATU #1)
- * 0xA0000000 - 0xAFFFFFFF PCI Mem w/o prefetch (Outbound ATU #2)
- * 0xB0000000 - 0xB0FFFFFF 32-bit PCI IO (Outbound ATU #3)
- *
- * PCI->Local map (from PCI)
- * MPC826x slave window controlled by
- *
- * 0x00000000 - 0x07FFFFFF MPC826x local memory (Inbound ATU #1)
- */
-
-/*
- * Slave window that allows PCI masters to access MPC826x local memory.
- * This window is set up using the first set of Inbound ATU registers
- */
-
-#ifndef MPC826x_PCI_SLAVE_MEM_LOCAL
-#define MPC826x_PCI_SLAVE_MEM_LOCAL (((struct bd_info *)__res)->bi_memstart)
-#define MPC826x_PCI_SLAVE_MEM_BUS (((struct bd_info *)__res)->bi_memstart)
-#define MPC826x_PCI_SLAVE_MEM_SIZE (((struct bd_info *)__res)->bi_memsize)
-#endif
-
-/*
- * This is the window that allows the CPU to access PCI address space.
- * It will be setup with the SIU PCIBR0 register. All three PCI master
- * windows, which allow the CPU to access PCI prefetch, non prefetch,
- * and IO space (see below), must all fit within this window.
- */
-#ifndef MPC826x_PCI_BASE
-#define MPC826x_PCI_BASE 0x80000000
-#define MPC826x_PCI_MASK 0xc0000000
-#endif
-
-#ifndef MPC826x_PCI_LOWER_MEM
-#define MPC826x_PCI_LOWER_MEM 0x80000000
-#define MPC826x_PCI_UPPER_MEM 0x9fffffff
-#define MPC826x_PCI_MEM_OFFSET 0x00000000
-#endif
-
-#ifndef MPC826x_PCI_LOWER_MMIO
-#define MPC826x_PCI_LOWER_MMIO 0xa0000000
-#define MPC826x_PCI_UPPER_MMIO 0xafffffff
-#define MPC826x_PCI_MMIO_OFFSET 0x00000000
-#endif
-
-#ifndef MPC826x_PCI_LOWER_IO
-#define MPC826x_PCI_LOWER_IO 0x00000000
-#define MPC826x_PCI_UPPER_IO 0x00ffffff
-#define MPC826x_PCI_IO_BASE 0xb0000000
-#define MPC826x_PCI_IO_SIZE 0x01000000
-#endif
-
-#ifndef _IO_BASE
-#define _IO_BASE isa_io_base
-#endif
-
-#ifdef CONFIG_8260_PCI9
-extern void setup_m8260_indirect_pci(struct pci_controller* hose,
- u32 cfg_addr, u32 cfg_data);
-#else
-#define setup_m8260_indirect_pci setup_indirect_pci
-#endif
-
-#endif /* _PPC_KERNEL_M8260_PCI_H */
+++ /dev/null
-/*
- * arch/ppc/platforms/mpc8260_pci9.c
- *
- * Workaround for device erratum PCI 9.
- * See Motorola's "XPC826xA Family Device Errata Reference."
- * The erratum applies to all 8260 family Hip4 processors. It is scheduled
- * to be fixed in HiP4 Rev C. Erratum PCI 9 states that a simultaneous PCI
- * inbound write transaction and PCI outbound read transaction can result in a
- * bus deadlock. The suggested workaround is to use the IDMA controller to
- * perform all reads from PCI configuration, memory, and I/O space.
- *
- * Author: andy_lowe@mvista.com
- *
- * 2003 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-#include <linux/kernel.h>
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/types.h>
-#include <linux/string.h>
-
-#include <asm/io.h>
-#include <asm/pci-bridge.h>
-#include <asm/machdep.h>
-#include <asm/byteorder.h>
-#include <asm/mpc8260.h>
-#include <asm/immap_cpm2.h>
-#include <asm/cpm2.h>
-
-#include "m8260_pci.h"
-
-#ifdef CONFIG_8260_PCI9
-/*#include <asm/mpc8260_pci9.h>*/ /* included in asm/io.h */
-
-#define IDMA_XFER_BUF_SIZE 64 /* size of the IDMA transfer buffer */
-
-/* define a structure for the IDMA dpram usage */
-typedef struct idma_dpram_s {
- idma_t pram; /* IDMA parameter RAM */
- u_char xfer_buf[IDMA_XFER_BUF_SIZE]; /* IDMA transfer buffer */
- idma_bd_t bd; /* buffer descriptor */
-} idma_dpram_t;
-
-/* define offsets relative to start of IDMA dpram */
-#define IDMA_XFER_BUF_OFFSET (sizeof(idma_t))
-#define IDMA_BD_OFFSET (sizeof(idma_t) + IDMA_XFER_BUF_SIZE)
-
-/* define globals */
-static volatile idma_dpram_t *idma_dpram;
-
-/* Exactly one of CONFIG_8260_PCI9_IDMAn must be defined,
- * where n is 1, 2, 3, or 4. This selects the IDMA channel used for
- * the PCI9 workaround.
- */
-#ifdef CONFIG_8260_PCI9_IDMA1
-#define IDMA_CHAN 0
-#define PROFF_IDMA PROFF_IDMA1_BASE
-#define IDMA_PAGE CPM_CR_IDMA1_PAGE
-#define IDMA_SBLOCK CPM_CR_IDMA1_SBLOCK
-#endif
-#ifdef CONFIG_8260_PCI9_IDMA2
-#define IDMA_CHAN 1
-#define PROFF_IDMA PROFF_IDMA2_BASE
-#define IDMA_PAGE CPM_CR_IDMA2_PAGE
-#define IDMA_SBLOCK CPM_CR_IDMA2_SBLOCK
-#endif
-#ifdef CONFIG_8260_PCI9_IDMA3
-#define IDMA_CHAN 2
-#define PROFF_IDMA PROFF_IDMA3_BASE
-#define IDMA_PAGE CPM_CR_IDMA3_PAGE
-#define IDMA_SBLOCK CPM_CR_IDMA3_SBLOCK
-#endif
-#ifdef CONFIG_8260_PCI9_IDMA4
-#define IDMA_CHAN 3
-#define PROFF_IDMA PROFF_IDMA4_BASE
-#define IDMA_PAGE CPM_CR_IDMA4_PAGE
-#define IDMA_SBLOCK CPM_CR_IDMA4_SBLOCK
-#endif
-
-void idma_pci9_init(void)
-{
- uint dpram_offset;
- volatile idma_t *pram;
- volatile im_idma_t *idma_reg;
- volatile cpm2_map_t *immap = cpm2_immr;
-
- /* allocate IDMA dpram */
- dpram_offset = cpm2_dpalloc(sizeof(idma_dpram_t), 64);
- idma_dpram =
- (volatile idma_dpram_t *)&immap->im_dprambase[dpram_offset];
-
- /* initialize the IDMA parameter RAM */
- memset((void *)idma_dpram, 0, sizeof(idma_dpram_t));
- pram = &idma_dpram->pram;
- pram->ibase = dpram_offset + IDMA_BD_OFFSET;
- pram->dpr_buf = dpram_offset + IDMA_XFER_BUF_OFFSET;
- pram->ss_max = 32;
- pram->dts = 32;
-
- /* initialize the IDMA_BASE pointer to the IDMA parameter RAM */
- *((ushort *) &immap->im_dprambase[PROFF_IDMA]) = dpram_offset;
-
- /* initialize the IDMA registers */
- idma_reg = (volatile im_idma_t *) &immap->im_sdma.sdma_idsr1;
- idma_reg[IDMA_CHAN].idmr = 0; /* mask all IDMA interrupts */
- idma_reg[IDMA_CHAN].idsr = 0xff; /* clear all event flags */
-
- printk("<4>Using IDMA%d for MPC8260 device erratum PCI 9 workaround\n",
- IDMA_CHAN + 1);
-
- return;
-}
-
-/* Use the IDMA controller to transfer data from I/O memory to local RAM.
- * The src address must be a physical address suitable for use by the DMA
- * controller with no translation. The dst address must be a kernel virtual
- * address. The dst address is translated to a physical address via
- * virt_to_phys().
- * The sinc argument specifies whether or not the source address is incremented
- * by the DMA controller. The source address is incremented if and only if sinc
- * is non-zero. The destination address is always incremented since the
- * destination is always host RAM.
- */
-static void
-idma_pci9_read(u8 *dst, u8 *src, int bytes, int unit_size, int sinc)
-{
- unsigned long flags;
- volatile idma_t *pram = &idma_dpram->pram;
- volatile idma_bd_t *bd = &idma_dpram->bd;
- volatile cpm2_map_t *immap = cpm2_immr;
-
- local_irq_save(flags);
-
- /* initialize IDMA parameter RAM for this transfer */
- if (sinc)
- pram->dcm = IDMA_DCM_DMA_WRAP_64 | IDMA_DCM_SINC
- | IDMA_DCM_DINC | IDMA_DCM_SD_MEM2MEM;
- else
- pram->dcm = IDMA_DCM_DMA_WRAP_64 | IDMA_DCM_DINC
- | IDMA_DCM_SD_MEM2MEM;
- pram->ibdptr = pram->ibase;
- pram->sts = unit_size;
- pram->istate = 0;
-
- /* initialize the buffer descriptor */
- bd->dst = virt_to_phys(dst);
- bd->src = (uint) src;
- bd->len = bytes;
- bd->flags = IDMA_BD_V | IDMA_BD_W | IDMA_BD_I | IDMA_BD_L | IDMA_BD_DGBL
- | IDMA_BD_DBO_BE | IDMA_BD_SBO_BE | IDMA_BD_SDTB;
-
- /* issue the START_IDMA command to the CP */
- while (immap->im_cpm.cp_cpcr & CPM_CR_FLG);
- immap->im_cpm.cp_cpcr = mk_cr_cmd(IDMA_PAGE, IDMA_SBLOCK, 0,
- CPM_CR_START_IDMA) | CPM_CR_FLG;
- while (immap->im_cpm.cp_cpcr & CPM_CR_FLG);
-
- /* wait for transfer to complete */
- while(bd->flags & IDMA_BD_V);
-
- local_irq_restore(flags);
-
- return;
-}
-
-/* Use the IDMA controller to transfer data from I/O memory to local RAM.
- * The dst address must be a physical address suitable for use by the DMA
- * controller with no translation. The src address must be a kernel virtual
- * address. The src address is translated to a physical address via
- * virt_to_phys().
- * The dinc argument specifies whether or not the dest address is incremented
- * by the DMA controller. The source address is incremented if and only if sinc
- * is non-zero. The source address is always incremented since the
- * source is always host RAM.
- */
-static void
-idma_pci9_write(u8 *dst, u8 *src, int bytes, int unit_size, int dinc)
-{
- unsigned long flags;
- volatile idma_t *pram = &idma_dpram->pram;
- volatile idma_bd_t *bd = &idma_dpram->bd;
- volatile cpm2_map_t *immap = cpm2_immr;
-
- local_irq_save(flags);
-
- /* initialize IDMA parameter RAM for this transfer */
- if (dinc)
- pram->dcm = IDMA_DCM_DMA_WRAP_64 | IDMA_DCM_SINC
- | IDMA_DCM_DINC | IDMA_DCM_SD_MEM2MEM;
- else
- pram->dcm = IDMA_DCM_DMA_WRAP_64 | IDMA_DCM_SINC
- | IDMA_DCM_SD_MEM2MEM;
- pram->ibdptr = pram->ibase;
- pram->sts = unit_size;
- pram->istate = 0;
-
- /* initialize the buffer descriptor */
- bd->dst = (uint) dst;
- bd->src = virt_to_phys(src);
- bd->len = bytes;
- bd->flags = IDMA_BD_V | IDMA_BD_W | IDMA_BD_I | IDMA_BD_L | IDMA_BD_DGBL
- | IDMA_BD_DBO_BE | IDMA_BD_SBO_BE | IDMA_BD_SDTB;
-
- /* issue the START_IDMA command to the CP */
- while (immap->im_cpm.cp_cpcr & CPM_CR_FLG);
- immap->im_cpm.cp_cpcr = mk_cr_cmd(IDMA_PAGE, IDMA_SBLOCK, 0,
- CPM_CR_START_IDMA) | CPM_CR_FLG;
- while (immap->im_cpm.cp_cpcr & CPM_CR_FLG);
-
- /* wait for transfer to complete */
- while(bd->flags & IDMA_BD_V);
-
- local_irq_restore(flags);
-
- return;
-}
-
-/* Same as idma_pci9_read, but 16-bit little-endian byte swapping is performed
- * if the unit_size is 2, and 32-bit little-endian byte swapping is performed if
- * the unit_size is 4.
- */
-static void
-idma_pci9_read_le(u8 *dst, u8 *src, int bytes, int unit_size, int sinc)
-{
- int i;
- u8 *p;
-
- idma_pci9_read(dst, src, bytes, unit_size, sinc);
- switch(unit_size) {
- case 2:
- for (i = 0, p = dst; i < bytes; i += 2, p += 2)
- swab16s((u16 *) p);
- break;
- case 4:
- for (i = 0, p = dst; i < bytes; i += 4, p += 4)
- swab32s((u32 *) p);
- break;
- default:
- break;
- }
-}
-EXPORT_SYMBOL(idma_pci9_init);
-EXPORT_SYMBOL(idma_pci9_read);
-EXPORT_SYMBOL(idma_pci9_read_le);
-
-static inline int is_pci_mem(unsigned long addr)
-{
- if (addr >= MPC826x_PCI_LOWER_MMIO &&
- addr <= MPC826x_PCI_UPPER_MMIO)
- return 1;
- if (addr >= MPC826x_PCI_LOWER_MEM &&
- addr <= MPC826x_PCI_UPPER_MEM)
- return 1;
- return 0;
-}
-
-#define is_pci_mem(pa) ( (pa > 0x80000000) && (pa < 0xc0000000))
-int readb(volatile unsigned char *addr)
-{
- u8 val;
- unsigned long pa = iopa((unsigned long) addr);
-
- if (!is_pci_mem(pa))
- return in_8(addr);
-
- idma_pci9_read((u8 *)&val, (u8 *)pa, sizeof(val), sizeof(val), 0);
- return val;
-}
-
-int readw(volatile unsigned short *addr)
-{
- u16 val;
- unsigned long pa = iopa((unsigned long) addr);
-
- if (!is_pci_mem(pa))
- return in_le16(addr);
-
- idma_pci9_read((u8 *)&val, (u8 *)pa, sizeof(val), sizeof(val), 0);
- return swab16(val);
-}
-
-unsigned readl(volatile unsigned *addr)
-{
- u32 val;
- unsigned long pa = iopa((unsigned long) addr);
-
- if (!is_pci_mem(pa))
- return in_le32(addr);
-
- idma_pci9_read((u8 *)&val, (u8 *)pa, sizeof(val), sizeof(val), 0);
- return swab32(val);
-}
-
-int inb(unsigned port)
-{
- u8 val;
- u8 *addr = (u8 *)(port + _IO_BASE);
-
- idma_pci9_read((u8 *)&val, (u8 *)addr, sizeof(val), sizeof(val), 0);
- return val;
-}
-
-int inw(unsigned port)
-{
- u16 val;
- u8 *addr = (u8 *)(port + _IO_BASE);
-
- idma_pci9_read((u8 *)&val, (u8 *)addr, sizeof(val), sizeof(val), 0);
- return swab16(val);
-}
-
-unsigned inl(unsigned port)
-{
- u32 val;
- u8 *addr = (u8 *)(port + _IO_BASE);
-
- idma_pci9_read((u8 *)&val, (u8 *)addr, sizeof(val), sizeof(val), 0);
- return swab32(val);
-}
-
-void insb(unsigned port, void *buf, int ns)
-{
- u8 *addr = (u8 *)(port + _IO_BASE);
-
- idma_pci9_read((u8 *)buf, (u8 *)addr, ns*sizeof(u8), sizeof(u8), 0);
-}
-
-void insw(unsigned port, void *buf, int ns)
-{
- u8 *addr = (u8 *)(port + _IO_BASE);
-
- idma_pci9_read((u8 *)buf, (u8 *)addr, ns*sizeof(u16), sizeof(u16), 0);
-}
-
-void insl(unsigned port, void *buf, int nl)
-{
- u8 *addr = (u8 *)(port + _IO_BASE);
-
- idma_pci9_read((u8 *)buf, (u8 *)addr, nl*sizeof(u32), sizeof(u32), 0);
-}
-
-void insw_ns(unsigned port, void *buf, int ns)
-{
- u8 *addr = (u8 *)(port + _IO_BASE);
-
- idma_pci9_read((u8 *)buf, (u8 *)addr, ns*sizeof(u16), sizeof(u16), 0);
-}
-
-void insl_ns(unsigned port, void *buf, int nl)
-{
- u8 *addr = (u8 *)(port + _IO_BASE);
-
- idma_pci9_read((u8 *)buf, (u8 *)addr, nl*sizeof(u32), sizeof(u32), 0);
-}
-
-void *memcpy_fromio(void *dest, unsigned long src, size_t count)
-{
- unsigned long pa = iopa((unsigned long) src);
-
- if (is_pci_mem(pa))
- idma_pci9_read((u8 *)dest, (u8 *)pa, count, 32, 1);
- else
- memcpy(dest, (void *)src, count);
- return dest;
-}
-
-EXPORT_SYMBOL(readb);
-EXPORT_SYMBOL(readw);
-EXPORT_SYMBOL(readl);
-EXPORT_SYMBOL(inb);
-EXPORT_SYMBOL(inw);
-EXPORT_SYMBOL(inl);
-EXPORT_SYMBOL(insb);
-EXPORT_SYMBOL(insw);
-EXPORT_SYMBOL(insl);
-EXPORT_SYMBOL(insw_ns);
-EXPORT_SYMBOL(insl_ns);
-EXPORT_SYMBOL(memcpy_fromio);
-
-#endif /* ifdef CONFIG_8260_PCI9 */
-
-/* Indirect PCI routines adapted from arch/ppc/kernel/indirect_pci.c.
- * Copyright (C) 1998 Gabriel Paubert.
- */
-#ifndef CONFIG_8260_PCI9
-#define cfg_read(val, addr, type, op) *val = op((type)(addr))
-#else
-#define cfg_read(val, addr, type, op) \
- idma_pci9_read_le((u8*)(val),(u8*)(addr),sizeof(*(val)),sizeof(*(val)),0)
-#endif
-
-#define cfg_write(val, addr, type, op) op((type *)(addr), (val))
-
-static int indirect_write_config(struct pci_bus *pbus, unsigned int devfn, int where,
- int size, u32 value)
-{
- struct pci_controller *hose = pbus->sysdata;
- u8 cfg_type = 0;
- if (ppc_md.pci_exclude_device)
- if (ppc_md.pci_exclude_device(pbus->number, devfn))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (hose->set_cfg_type)
- if (pbus->number != hose->first_busno)
- cfg_type = 1;
-
- out_be32(hose->cfg_addr,
- (((where & 0xfc) | cfg_type) << 24) | (devfn << 16)
- | ((pbus->number - hose->bus_offset) << 8) | 0x80);
-
- switch (size)
- {
- case 1:
- cfg_write(value, hose->cfg_data + (where & 3), u8, out_8);
- break;
- case 2:
- cfg_write(value, hose->cfg_data + (where & 2), u16, out_le16);
- break;
- case 4:
- cfg_write(value, hose->cfg_data + (where & 0), u32, out_le32);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int indirect_read_config(struct pci_bus *pbus, unsigned int devfn, int where,
- int size, u32 *value)
-{
- struct pci_controller *hose = pbus->sysdata;
- u8 cfg_type = 0;
- if (ppc_md.pci_exclude_device)
- if (ppc_md.pci_exclude_device(pbus->number, devfn))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (hose->set_cfg_type)
- if (pbus->number != hose->first_busno)
- cfg_type = 1;
-
- out_be32(hose->cfg_addr,
- (((where & 0xfc) | cfg_type) << 24) | (devfn << 16)
- | ((pbus->number - hose->bus_offset) << 8) | 0x80);
-
- switch (size)
- {
- case 1:
- cfg_read(value, hose->cfg_data + (where & 3), u8 *, in_8);
- break;
- case 2:
- cfg_read(value, hose->cfg_data + (where & 2), u16 *, in_le16);
- break;
- case 4:
- cfg_read(value, hose->cfg_data + (where & 0), u32 *, in_le32);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops indirect_pci_ops =
-{
- .read = indirect_read_config,
- .write = indirect_write_config,
-};
-
-void
-setup_m8260_indirect_pci(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
-{
- hose->ops = &indirect_pci_ops;
- hose->cfg_addr = (unsigned int *) ioremap(cfg_addr, 4);
- hose->cfg_data = (unsigned char *) ioremap(cfg_data, 4);
-}
+++ /dev/null
-/*
- * arch/ppc/syslib/mpc52xx_pic.c
- *
- * Programmable Interrupt Controller functions for the Freescale MPC52xx
- * embedded CPU.
- *
- *
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Based on (well, mostly copied from) the code from the 2.4 kernel by
- * Dale Farnsworth <dfarnsworth@mvista.com> and Kent Borg.
- *
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 Montavista Software, Inc
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/stddef.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/mpc52xx.h>
-
-
-static struct mpc52xx_intr *intr;
-static struct mpc52xx_sdma *sdma;
-
-static void
-mpc52xx_ic_disable(unsigned int irq)
-{
- u32 val;
-
- if (irq == MPC52xx_IRQ0) {
- val = in_be32(&intr->ctrl);
- val &= ~(1 << 11);
- out_be32(&intr->ctrl, val);
- }
- else if (irq < MPC52xx_IRQ1) {
- BUG();
- }
- else if (irq <= MPC52xx_IRQ3) {
- val = in_be32(&intr->ctrl);
- val &= ~(1 << (10 - (irq - MPC52xx_IRQ1)));
- out_be32(&intr->ctrl, val);
- }
- else if (irq < MPC52xx_SDMA_IRQ_BASE) {
- val = in_be32(&intr->main_mask);
- val |= 1 << (16 - (irq - MPC52xx_MAIN_IRQ_BASE));
- out_be32(&intr->main_mask, val);
- }
- else if (irq < MPC52xx_PERP_IRQ_BASE) {
- val = in_be32(&sdma->IntMask);
- val |= 1 << (irq - MPC52xx_SDMA_IRQ_BASE);
- out_be32(&sdma->IntMask, val);
- }
- else {
- val = in_be32(&intr->per_mask);
- val |= 1 << (31 - (irq - MPC52xx_PERP_IRQ_BASE));
- out_be32(&intr->per_mask, val);
- }
-}
-
-static void
-mpc52xx_ic_enable(unsigned int irq)
-{
- u32 val;
-
- if (irq == MPC52xx_IRQ0) {
- val = in_be32(&intr->ctrl);
- val |= 1 << 11;
- out_be32(&intr->ctrl, val);
- }
- else if (irq < MPC52xx_IRQ1) {
- BUG();
- }
- else if (irq <= MPC52xx_IRQ3) {
- val = in_be32(&intr->ctrl);
- val |= 1 << (10 - (irq - MPC52xx_IRQ1));
- out_be32(&intr->ctrl, val);
- }
- else if (irq < MPC52xx_SDMA_IRQ_BASE) {
- val = in_be32(&intr->main_mask);
- val &= ~(1 << (16 - (irq - MPC52xx_MAIN_IRQ_BASE)));
- out_be32(&intr->main_mask, val);
- }
- else if (irq < MPC52xx_PERP_IRQ_BASE) {
- val = in_be32(&sdma->IntMask);
- val &= ~(1 << (irq - MPC52xx_SDMA_IRQ_BASE));
- out_be32(&sdma->IntMask, val);
- }
- else {
- val = in_be32(&intr->per_mask);
- val &= ~(1 << (31 - (irq - MPC52xx_PERP_IRQ_BASE)));
- out_be32(&intr->per_mask, val);
- }
-}
-
-static void
-mpc52xx_ic_ack(unsigned int irq)
-{
- u32 val;
-
- /*
- * Only some irqs are reset here, others in interrupting hardware.
- */
-
- switch (irq) {
- case MPC52xx_IRQ0:
- val = in_be32(&intr->ctrl);
- val |= 0x08000000;
- out_be32(&intr->ctrl, val);
- break;
- case MPC52xx_CCS_IRQ:
- val = in_be32(&intr->enc_status);
- val |= 0x00000400;
- out_be32(&intr->enc_status, val);
- break;
- case MPC52xx_IRQ1:
- val = in_be32(&intr->ctrl);
- val |= 0x04000000;
- out_be32(&intr->ctrl, val);
- break;
- case MPC52xx_IRQ2:
- val = in_be32(&intr->ctrl);
- val |= 0x02000000;
- out_be32(&intr->ctrl, val);
- break;
- case MPC52xx_IRQ3:
- val = in_be32(&intr->ctrl);
- val |= 0x01000000;
- out_be32(&intr->ctrl, val);
- break;
- default:
- if (irq >= MPC52xx_SDMA_IRQ_BASE
- && irq < (MPC52xx_SDMA_IRQ_BASE + MPC52xx_SDMA_IRQ_NUM)) {
- out_be32(&sdma->IntPend,
- 1 << (irq - MPC52xx_SDMA_IRQ_BASE));
- }
- break;
- }
-}
-
-static void
-mpc52xx_ic_disable_and_ack(unsigned int irq)
-{
- mpc52xx_ic_disable(irq);
- mpc52xx_ic_ack(irq);
-}
-
-static void
-mpc52xx_ic_end(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
- mpc52xx_ic_enable(irq);
-}
-
-static struct hw_interrupt_type mpc52xx_ic = {
- "MPC52xx",
- NULL, /* startup(irq) */
- NULL, /* shutdown(irq) */
- mpc52xx_ic_enable, /* enable(irq) */
- mpc52xx_ic_disable, /* disable(irq) */
- mpc52xx_ic_disable_and_ack, /* disable_and_ack(irq) */
- mpc52xx_ic_end, /* end(irq) */
- 0 /* set_affinity(irq, cpumask) SMP. */
-};
-
-void __init
-mpc52xx_init_irq(void)
-{
- int i;
-
- /* Remap the necessary zones */
- intr = (struct mpc52xx_intr *)
- ioremap(MPC52xx_INTR, sizeof(struct mpc52xx_intr));
- sdma = (struct mpc52xx_sdma *)
- ioremap(MPC52xx_SDMA, sizeof(struct mpc52xx_sdma));
-
- if ((intr==NULL) || (sdma==NULL))
- panic("Can't ioremap PIC/SDMA register for init_irq !");
-
- /* Disable all interrupt sources. */
- out_be32(&sdma->IntPend, 0xffffffff); /* 1 means clear pending */
- out_be32(&sdma->IntMask, 0xffffffff); /* 1 means disabled */
- out_be32(&intr->per_mask, 0x7ffffc00); /* 1 means disabled */
- out_be32(&intr->main_mask, 0x00010fff); /* 1 means disabled */
- out_be32(&intr->ctrl,
- 0x0f000000 | /* clear IRQ 0-3 */
- 0x00c00000 | /* IRQ0: level-sensitive, active low */
- 0x00001000 | /* MEE master external enable */
- 0x00000000 | /* 0 means disable IRQ 0-3 */
- 0x00000001); /* CEb route critical normally */
-
- /* Zero a bunch of the priority settings. */
- out_be32(&intr->per_pri1, 0);
- out_be32(&intr->per_pri2, 0);
- out_be32(&intr->per_pri3, 0);
- out_be32(&intr->main_pri1, 0);
- out_be32(&intr->main_pri2, 0);
-
- /* Initialize irq_desc[i].handler's with mpc52xx_ic. */
- for (i = 0; i < NR_IRQS; i++) {
- irq_desc[i].handler = &mpc52xx_ic;
- irq_desc[i].status = IRQ_LEVEL;
- }
-}
-
-int
-mpc52xx_get_irq(struct pt_regs *regs)
-{
- u32 status;
- int irq = -1;
-
- status = in_be32(&intr->enc_status);
-
- if (status & 0x00000400) { /* critical */
- irq = (status >> 8) & 0x3;
- if (irq == 2) /* high priority peripheral */
- goto peripheral;
- irq += MPC52xx_CRIT_IRQ_BASE;
- }
- else if (status & 0x00200000) { /* main */
- irq = (status >> 16) & 0x1f;
- if (irq == 4) /* low priority peripheral */
- goto peripheral;
- irq += MPC52xx_MAIN_IRQ_BASE;
- }
- else if (status & 0x20000000) { /* peripheral */
-peripheral:
- irq = (status >> 24) & 0x1f;
- if (irq == 0) { /* bestcomm */
- status = in_be32(&sdma->IntPend);
- irq = ffs(status) + MPC52xx_SDMA_IRQ_BASE-1;
- }
- else
- irq += MPC52xx_PERP_IRQ_BASE;
- }
-
- return irq;
-}
-
+++ /dev/null
-/*
- * arch/ppc/syslib/mpc52xx_common.c
- *
- * Common code for the boards based on Freescale MPC52xx embedded CPU.
- *
- *
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Support for other bootloaders than UBoot by Dale Farnsworth
- * <dfarnsworth@mvista.com>
- *
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 Montavista Software, Inc
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#include <linux/config.h>
-
-#include <asm/time.h>
-#include <asm/mpc52xx.h>
-#include <asm/mpc52xx_psc.h>
-#include <asm/ocp.h>
-#include <asm/ppcboot.h>
-
-extern bd_t __res;
-
-static int core_mult[] = { /* CPU Frequency multiplier, taken */
- 0, 0, 0, 10, 20, 20, 25, 45, /* from the datasheet used to compute */
- 30, 55, 40, 50, 0, 60, 35, 0, /* CPU frequency from XLB freq and */
- 30, 25, 65, 10, 70, 20, 75, 45, /* external jumper config */
- 0, 55, 40, 50, 80, 60, 35, 0
-};
-
-void
-mpc52xx_restart(char *cmd)
-{
- struct mpc52xx_gpt* gpt0 = (struct mpc52xx_gpt*) MPC52xx_GPTx(0);
-
- local_irq_disable();
-
- /* Turn on the watchdog and wait for it to expire. It effectively
- does a reset */
- if (gpt0 != NULL) {
- out_be32(&gpt0->count, 0x000000ff);
- out_be32(&gpt0->mode, 0x00009004);
- } else
- printk(KERN_ERR "mpc52xx_restart: Unable to ioremap GPT0 registers, -> looping ...");
-
- while (1);
-}
-
-void
-mpc52xx_halt(void)
-{
- local_irq_disable();
-
- while (1);
-}
-
-void
-mpc52xx_power_off(void)
-{
- /* By default we don't have any way of shut down.
- If a specific board wants to, it can set the power down
- code to any hardware implementation dependent code */
- mpc52xx_halt();
-}
-
-
-void __init
-mpc52xx_set_bat(void)
-{
- /* Set BAT 2 to map the 0xf0000000 area */
- /* This mapping is used during mpc52xx_progress,
- * mpc52xx_find_end_of_memory, and UARTs/GPIO access for debug
- */
- mb();
- mtspr(DBAT2U, 0xf0001ffe);
- mtspr(DBAT2L, 0xf000002a);
- mb();
-}
-
-void __init
-mpc52xx_map_io(void)
-{
- /* Here we only map the MBAR */
- io_block_mapping(
- MPC52xx_MBAR_VIRT, MPC52xx_MBAR, MPC52xx_MBAR_SIZE, _PAGE_IO);
-}
-
-
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
-#ifdef MPC52xx_PF_CONSOLE_PORT
-#define MPC52xx_CONSOLE MPC52xx_PSCx(MPC52xx_PF_CONSOLE_PORT)
-#else
-#error "mpc52xx PSC for console not selected"
-#endif
-
-void
-mpc52xx_progress(char *s, unsigned short hex)
-{
- struct mpc52xx_psc *psc = (struct mpc52xx_psc *)MPC52xx_CONSOLE;
- char c;
-
- /* Don't we need to disable serial interrupts ? */
-
- while ((c = *s++) != 0) {
- if (c == '\n') {
- while (!(in_be16(&psc->mpc52xx_psc_status) &
- MPC52xx_PSC_SR_TXRDY)) ;
- out_8(&psc->mpc52xx_psc_buffer_8, '\r');
- }
- while (!(in_be16(&psc->mpc52xx_psc_status) &
- MPC52xx_PSC_SR_TXRDY)) ;
- out_8(&psc->mpc52xx_psc_buffer_8, c);
- }
-}
-
-#endif /* CONFIG_SERIAL_TEXT_DEBUG */
-
-
-unsigned long __init
-mpc52xx_find_end_of_memory(void)
-{
- u32 ramsize = __res.bi_memsize;
-
- /*
- * if bootloader passed a memsize, just use it
- * else get size from sdram config registers
- */
- if (ramsize == 0) {
- struct mpc52xx_mmap_ctl *mmap_ctl;
- u32 sdram_config_0, sdram_config_1;
-
- /* Temp BAT2 mapping active when this is called ! */
- mmap_ctl = (struct mpc52xx_mmap_ctl*) MPC52xx_MMAP_CTL;
-
- sdram_config_0 = in_be32(&mmap_ctl->sdram0);
- sdram_config_1 = in_be32(&mmap_ctl->sdram1);
-
- if ((sdram_config_0 & 0x1f) >= 0x13)
- ramsize = 1 << ((sdram_config_0 & 0xf) + 17);
-
- if (((sdram_config_1 & 0x1f) >= 0x13) &&
- ((sdram_config_1 & 0xfff00000) == ramsize))
- ramsize += 1 << ((sdram_config_1 & 0xf) + 17);
-
- iounmap(mmap_ctl);
- }
-
- return ramsize;
-}
-
-void __init
-mpc52xx_calibrate_decr(void)
-{
- int current_time, previous_time;
- int tbl_start, tbl_end;
- unsigned int xlbfreq, cpufreq, ipbfreq, pcifreq, divisor;
-
- xlbfreq = __res.bi_busfreq;
- /* if bootloader didn't pass bus frequencies, calculate them */
- if (xlbfreq == 0) {
- /* Get RTC & Clock manager modules */
- struct mpc52xx_rtc *rtc;
- struct mpc52xx_cdm *cdm;
-
- rtc = (struct mpc52xx_rtc*)
- ioremap(MPC52xx_RTC, sizeof(struct mpc52xx_rtc));
- cdm = (struct mpc52xx_cdm*)
- ioremap(MPC52xx_CDM, sizeof(struct mpc52xx_cdm));
-
- if ((rtc==NULL) || (cdm==NULL))
- panic("Can't ioremap RTC/CDM while computing bus freq");
-
- /* Count bus clock during 1/64 sec */
- out_be32(&rtc->dividers, 0x8f1f0000); /* Set RTC 64x faster */
- previous_time = in_be32(&rtc->time);
- while ((current_time = in_be32(&rtc->time)) == previous_time) ;
- tbl_start = get_tbl();
- previous_time = current_time;
- while ((current_time = in_be32(&rtc->time)) == previous_time) ;
- tbl_end = get_tbl();
- out_be32(&rtc->dividers, 0xffff0000); /* Restore RTC */
-
- /* Compute all frequency from that & CDM settings */
- xlbfreq = (tbl_end - tbl_start) << 8;
- cpufreq = (xlbfreq * core_mult[in_be32(&cdm->rstcfg)&0x1f])/10;
- ipbfreq = (in_8(&cdm->ipb_clk_sel) & 1) ?
- xlbfreq / 2 : xlbfreq;
- switch (in_8(&cdm->pci_clk_sel) & 3) {
- case 0:
- pcifreq = ipbfreq;
- break;
- case 1:
- pcifreq = ipbfreq / 2;
- break;
- default:
- pcifreq = xlbfreq / 4;
- break;
- }
- __res.bi_busfreq = xlbfreq;
- __res.bi_intfreq = cpufreq;
- __res.bi_ipbfreq = ipbfreq;
- __res.bi_pcifreq = pcifreq;
-
- /* Release mapping */
- iounmap((void*)rtc);
- iounmap((void*)cdm);
- }
-
- divisor = 4;
-
- tb_ticks_per_jiffy = xlbfreq / HZ / divisor;
- tb_to_us = mulhwu_scale_factor(xlbfreq / divisor, 1000000);
-}
-
-
-void __init
-mpc52xx_add_board_devices(struct ocp_def board_ocp[]) {
- while (board_ocp->vendor != OCP_VENDOR_INVALID)
- if(ocp_add_one_device(board_ocp++))
- printk("mpc5200-ocp: Failed to add board device !\n");
-}
-
+++ /dev/null
-/*
- * arch/ppc/kernel/ppc4xx_sgdma.c
- *
- * IBM PPC4xx DMA engine scatter/gather library
- *
- * Copyright 2002-2003 MontaVista Software Inc.
- *
- * Cleaned up and converted to new DCR access
- * Matt Porter <mporter@kernel.crashing.org>
- *
- * Original code by Armin Kuster <akuster@mvista.com>
- * and Pete Popov <ppopov@mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/ppc4xx_dma.h>
-
-void
-ppc4xx_set_sg_addr(int dmanr, phys_addr_t sg_addr)
-{
- if (dmanr >= MAX_PPC4xx_DMA_CHANNELS) {
- printk("ppc4xx_set_sg_addr: bad channel: %d\n", dmanr);
- return;
- }
-
-#ifdef PPC4xx_DMA_64BIT
- mtdcr(DCRN_ASGH0 + (dmanr * 0x8), (u32)(sg_addr >> 32));
-#endif
- mtdcr(DCRN_ASG0 + (dmanr * 0x8), (u32)sg_addr);
-}
-
-/*
- * Add a new sgl descriptor to the end of a scatter/gather list
- * which was created by alloc_dma_handle().
- *
- * For a memory to memory transfer, both dma addresses must be
- * valid. For a peripheral to memory transfer, one of the addresses
- * must be set to NULL, depending on the direction of the transfer:
- * memory to peripheral: set dst_addr to NULL,
- * peripheral to memory: set src_addr to NULL.
- */
-int
-ppc4xx_add_dma_sgl(sgl_handle_t handle, phys_addr_t src_addr, phys_addr_t dst_addr,
- unsigned int count)
-{
- sgl_list_info_t *psgl = (sgl_list_info_t *) handle;
- ppc_dma_ch_t *p_dma_ch;
-
- if (!handle) {
- printk("ppc4xx_add_dma_sgl: null handle\n");
- return DMA_STATUS_BAD_HANDLE;
- }
-
- if (psgl->dmanr >= MAX_PPC4xx_DMA_CHANNELS) {
- printk("ppc4xx_add_dma_sgl: bad channel: %d\n", psgl->dmanr);
- return DMA_STATUS_BAD_CHANNEL;
- }
-
- p_dma_ch = &dma_channels[psgl->dmanr];
-
-#ifdef DEBUG_4xxDMA
- {
- int error = 0;
- unsigned int aligned =
- (unsigned) src_addr | (unsigned) dst_addr | count;
- switch (p_dma_ch->pwidth) {
- case PW_8:
- break;
- case PW_16:
- if (aligned & 0x1)
- error = 1;
- break;
- case PW_32:
- if (aligned & 0x3)
- error = 1;
- break;
- case PW_64:
- if (aligned & 0x7)
- error = 1;
- break;
- default:
- printk("ppc4xx_add_dma_sgl: invalid bus width: 0x%x\n",
- p_dma_ch->pwidth);
- return DMA_STATUS_GENERAL_ERROR;
- }
- if (error)
- printk
- ("Alignment warning: ppc4xx_add_dma_sgl src 0x%x dst 0x%x count 0x%x bus width var %d\n",
- src_addr, dst_addr, count, p_dma_ch->pwidth);
-
- }
-#endif
-
- if ((unsigned) (psgl->ptail + 1) >= ((unsigned) psgl + SGL_LIST_SIZE)) {
- printk("sgl handle out of memory \n");
- return DMA_STATUS_OUT_OF_MEMORY;
- }
-
- if (!psgl->ptail) {
- psgl->phead = (ppc_sgl_t *)
- ((unsigned) psgl + sizeof (sgl_list_info_t));
- psgl->phead_dma = psgl->dma_addr + sizeof(sgl_list_info_t);
- psgl->ptail = psgl->phead;
- psgl->ptail_dma = psgl->phead_dma;
- } else {
- psgl->ptail->next = psgl->ptail_dma + sizeof(ppc_sgl_t);
- psgl->ptail++;
- psgl->ptail_dma += sizeof(ppc_sgl_t);
- }
-
- psgl->ptail->control = psgl->control;
- psgl->ptail->src_addr = src_addr;
- psgl->ptail->dst_addr = dst_addr;
- psgl->ptail->control_count = (count >> p_dma_ch->shift) |
- psgl->sgl_control;
- psgl->ptail->next = (uint32_t) NULL;
-
- return DMA_STATUS_GOOD;
-}
-
-/*
- * Enable (start) the DMA described by the sgl handle.
- */
-void
-ppc4xx_enable_dma_sgl(sgl_handle_t handle)
-{
- sgl_list_info_t *psgl = (sgl_list_info_t *) handle;
- ppc_dma_ch_t *p_dma_ch;
- uint32_t sg_command;
-
- if (!handle) {
- printk("ppc4xx_enable_dma_sgl: null handle\n");
- return;
- } else if (psgl->dmanr > (MAX_PPC4xx_DMA_CHANNELS - 1)) {
- printk("ppc4xx_enable_dma_sgl: bad channel in handle %d\n",
- psgl->dmanr);
- return;
- } else if (!psgl->phead) {
- printk("ppc4xx_enable_dma_sgl: sg list empty\n");
- return;
- }
-
- p_dma_ch = &dma_channels[psgl->dmanr];
- psgl->ptail->control_count &= ~SG_LINK; /* make this the last dscrptr */
- sg_command = mfdcr(DCRN_ASGC);
-
- ppc4xx_set_sg_addr(psgl->dmanr, psgl->phead_dma);
-
- sg_command |= SSG_ENABLE(psgl->dmanr);
-
- mtdcr(DCRN_ASGC, sg_command); /* start transfer */
-}
-
-/*
- * Halt an active scatter/gather DMA operation.
- */
-void
-ppc4xx_disable_dma_sgl(sgl_handle_t handle)
-{
- sgl_list_info_t *psgl = (sgl_list_info_t *) handle;
- uint32_t sg_command;
-
- if (!handle) {
- printk("ppc4xx_enable_dma_sgl: null handle\n");
- return;
- } else if (psgl->dmanr > (MAX_PPC4xx_DMA_CHANNELS - 1)) {
- printk("ppc4xx_enable_dma_sgl: bad channel in handle %d\n",
- psgl->dmanr);
- return;
- }
-
- sg_command = mfdcr(DCRN_ASGC);
- sg_command &= ~SSG_ENABLE(psgl->dmanr);
- mtdcr(DCRN_ASGC, sg_command); /* stop transfer */
-}
-
-/*
- * Returns number of bytes left to be transferred from the entire sgl list.
- * *src_addr and *dst_addr get set to the source/destination address of
- * the sgl descriptor where the DMA stopped.
- *
- * An sgl transfer must NOT be active when this function is called.
- */
-int
-ppc4xx_get_dma_sgl_residue(sgl_handle_t handle, phys_addr_t * src_addr,
- phys_addr_t * dst_addr)
-{
- sgl_list_info_t *psgl = (sgl_list_info_t *) handle;
- ppc_dma_ch_t *p_dma_ch;
- ppc_sgl_t *pnext, *sgl_addr;
- uint32_t count_left;
-
- if (!handle) {
- printk("ppc4xx_get_dma_sgl_residue: null handle\n");
- return DMA_STATUS_BAD_HANDLE;
- } else if (psgl->dmanr > (MAX_PPC4xx_DMA_CHANNELS - 1)) {
- printk("ppc4xx_get_dma_sgl_residue: bad channel in handle %d\n",
- psgl->dmanr);
- return DMA_STATUS_BAD_CHANNEL;
- }
-
- sgl_addr = (ppc_sgl_t *) __va(mfdcr(DCRN_ASG0 + (psgl->dmanr * 0x8)));
- count_left = mfdcr(DCRN_DMACT0 + (psgl->dmanr * 0x8));
-
- if (!sgl_addr) {
- printk("ppc4xx_get_dma_sgl_residue: sgl addr register is null\n");
- goto error;
- }
-
- pnext = psgl->phead;
- while (pnext &&
- ((unsigned) pnext < ((unsigned) psgl + SGL_LIST_SIZE) &&
- (pnext != sgl_addr))
- ) {
- pnext++;
- }
-
- if (pnext == sgl_addr) { /* found the sgl descriptor */
-
- *src_addr = pnext->src_addr;
- *dst_addr = pnext->dst_addr;
-
- /*
- * Now search the remaining descriptors and add their count.
- * We already have the remaining count from this descriptor in
- * count_left.
- */
- pnext++;
-
- while ((pnext != psgl->ptail) &&
- ((unsigned) pnext < ((unsigned) psgl + SGL_LIST_SIZE))
- ) {
- count_left += pnext->control_count & SG_COUNT_MASK;
- }
-
- if (pnext != psgl->ptail) { /* should never happen */
- printk
- ("ppc4xx_get_dma_sgl_residue error (1) psgl->ptail 0x%x handle 0x%x\n",
- (unsigned int) psgl->ptail, (unsigned int) handle);
- goto error;
- }
-
- /* success */
- p_dma_ch = &dma_channels[psgl->dmanr];
- return (count_left << p_dma_ch->shift); /* count in bytes */
-
- } else {
- /* this shouldn't happen */
- printk
- ("get_dma_sgl_residue, unable to match current address 0x%x, handle 0x%x\n",
- (unsigned int) sgl_addr, (unsigned int) handle);
-
- }
-
- error:
- *src_addr = (phys_addr_t) NULL;
- *dst_addr = (phys_addr_t) NULL;
- return 0;
-}
-
-/*
- * Returns the address(es) of the buffer(s) contained in the head element of
- * the scatter/gather list. The element is removed from the scatter/gather
- * list and the next element becomes the head.
- *
- * This function should only be called when the DMA is not active.
- */
-int
-ppc4xx_delete_dma_sgl_element(sgl_handle_t handle, phys_addr_t * src_dma_addr,
- phys_addr_t * dst_dma_addr)
-{
- sgl_list_info_t *psgl = (sgl_list_info_t *) handle;
-
- if (!handle) {
- printk("ppc4xx_delete_sgl_element: null handle\n");
- return DMA_STATUS_BAD_HANDLE;
- } else if (psgl->dmanr > (MAX_PPC4xx_DMA_CHANNELS - 1)) {
- printk("ppc4xx_delete_sgl_element: bad channel in handle %d\n",
- psgl->dmanr);
- return DMA_STATUS_BAD_CHANNEL;
- }
-
- if (!psgl->phead) {
- printk("ppc4xx_delete_sgl_element: sgl list empty\n");
- *src_dma_addr = (phys_addr_t) NULL;
- *dst_dma_addr = (phys_addr_t) NULL;
- return DMA_STATUS_SGL_LIST_EMPTY;
- }
-
- *src_dma_addr = (phys_addr_t) psgl->phead->src_addr;
- *dst_dma_addr = (phys_addr_t) psgl->phead->dst_addr;
-
- if (psgl->phead == psgl->ptail) {
- /* last descriptor on the list */
- psgl->phead = NULL;
- psgl->ptail = NULL;
- } else {
- psgl->phead++;
- psgl->phead_dma += sizeof(ppc_sgl_t);
- }
-
- return DMA_STATUS_GOOD;
-}
-
-
-/*
- * Create a scatter/gather list handle. This is simply a structure which
- * describes a scatter/gather list.
- *
- * A handle is returned in "handle" which the driver should save in order to
- * be able to access this list later. A chunk of memory will be allocated
- * to be used by the API for internal management purposes, including managing
- * the sg list and allocating memory for the sgl descriptors. One page should
- * be more than enough for that purpose. Perhaps it's a bit wasteful to use
- * a whole page for a single sg list, but most likely there will be only one
- * sg list per channel.
- *
- * Interrupt notes:
- * Each sgl descriptor has a copy of the DMA control word which the DMA engine
- * loads in the control register. The control word has a "global" interrupt
- * enable bit for that channel. Interrupts are further qualified by a few bits
- * in the sgl descriptor count register. In order to setup an sgl, we have to
- * know ahead of time whether or not interrupts will be enabled at the completion
- * of the transfers. Thus, enable_dma_interrupt()/disable_dma_interrupt() MUST
- * be called before calling alloc_dma_handle(). If the interrupt mode will never
- * change after powerup, then enable_dma_interrupt()/disable_dma_interrupt()
- * do not have to be called -- interrupts will be enabled or disabled based
- * on how the channel was configured after powerup by the hw_init_dma_channel()
- * function. Each sgl descriptor will be setup to interrupt if an error occurs;
- * however, only the last descriptor will be setup to interrupt. Thus, an
- * interrupt will occur (if interrupts are enabled) only after the complete
- * sgl transfer is done.
- */
-int
-ppc4xx_alloc_dma_handle(sgl_handle_t * phandle, unsigned int mode, unsigned int dmanr)
-{
- sgl_list_info_t *psgl;
- dma_addr_t dma_addr;
- ppc_dma_ch_t *p_dma_ch = &dma_channels[dmanr];
- uint32_t sg_command;
- void *ret;
-
- if (dmanr >= MAX_PPC4xx_DMA_CHANNELS) {
- printk("ppc4xx_alloc_dma_handle: invalid channel 0x%x\n", dmanr);
- return DMA_STATUS_BAD_CHANNEL;
- }
-
- if (!phandle) {
- printk("ppc4xx_alloc_dma_handle: null handle pointer\n");
- return DMA_STATUS_NULL_POINTER;
- }
-
- /* Get a page of memory, which is zeroed out by consistent_alloc() */
- ret = dma_alloc_coherent(NULL, DMA_PPC4xx_SIZE, &dma_addr, GFP_KERNEL);
- if (ret != NULL) {
- memset(ret, 0, DMA_PPC4xx_SIZE);
- psgl = (sgl_list_info_t *) ret;
- }
-
- if (psgl == NULL) {
- *phandle = (sgl_handle_t) NULL;
- return DMA_STATUS_OUT_OF_MEMORY;
- }
-
- psgl->dma_addr = dma_addr;
- psgl->dmanr = dmanr;
-
- /*
- * Modify and save the control word. These words will be
- * written to each sgl descriptor. The DMA engine then
- * loads this control word into the control register
- * every time it reads a new descriptor.
- */
- psgl->control = p_dma_ch->control;
- /* Clear all mode bits */
- psgl->control &= ~(DMA_TM_MASK | DMA_TD);
- /* Save control word and mode */
- psgl->control |= (mode | DMA_CE_ENABLE);
-
- /* In MM mode, we must set ETD/TCE */
- if (mode == DMA_MODE_MM)
- psgl->control |= DMA_ETD_OUTPUT | DMA_TCE_ENABLE;
-
- if (p_dma_ch->int_enable) {
- /* Enable channel interrupt */
- psgl->control |= DMA_CIE_ENABLE;
- } else {
- psgl->control &= ~DMA_CIE_ENABLE;
- }
-
- sg_command = mfdcr(DCRN_ASGC);
- sg_command |= SSG_MASK_ENABLE(dmanr);
-
- /* Enable SGL control access */
- mtdcr(DCRN_ASGC, sg_command);
- psgl->sgl_control = SG_ERI_ENABLE | SG_LINK;
-
- if (p_dma_ch->int_enable) {
- if (p_dma_ch->tce_enable)
- psgl->sgl_control |= SG_TCI_ENABLE;
- else
- psgl->sgl_control |= SG_ETI_ENABLE;
- }
-
- *phandle = (sgl_handle_t) psgl;
- return DMA_STATUS_GOOD;
-}
-
-/*
- * Destroy a scatter/gather list handle that was created by alloc_dma_handle().
- * The list must be empty (contain no elements).
- */
-void
-ppc4xx_free_dma_handle(sgl_handle_t handle)
-{
- sgl_list_info_t *psgl = (sgl_list_info_t *) handle;
-
- if (!handle) {
- printk("ppc4xx_free_dma_handle: got NULL\n");
- return;
- } else if (psgl->phead) {
- printk("ppc4xx_free_dma_handle: list not empty\n");
- return;
- } else if (!psgl->dma_addr) { /* should never happen */
- printk("ppc4xx_free_dma_handle: no dma address\n");
- return;
- }
-
- dma_free_coherent(NULL, DMA_PPC4xx_SIZE, (void *) psgl, 0);
-}
-
-EXPORT_SYMBOL(ppc4xx_alloc_dma_handle);
-EXPORT_SYMBOL(ppc4xx_free_dma_handle);
-EXPORT_SYMBOL(ppc4xx_add_dma_sgl);
-EXPORT_SYMBOL(ppc4xx_delete_dma_sgl_element);
-EXPORT_SYMBOL(ppc4xx_enable_dma_sgl);
-EXPORT_SYMBOL(ppc4xx_disable_dma_sgl);
-EXPORT_SYMBOL(ppc4xx_get_dma_sgl_residue);
+++ /dev/null
-/*
- * arch/ppc/syslib/ppc85xx_common.c
- *
- * MPC85xx support routines
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/init.h>
-
-#include <asm/mpc85xx.h>
-#include <asm/mmu.h>
-#include <asm/ocp.h>
-
-/* ************************************************************************ */
-/* Return the value of CCSRBAR for the current board */
-
-phys_addr_t
-get_ccsrbar(void)
-{
- return BOARD_CCSRBAR;
-}
-
-/* ************************************************************************ */
-/* Update the 85xx OCP tables paddr field */
-void
-mpc85xx_update_paddr_ocp(struct ocp_device *dev, void *arg)
-{
- phys_addr_t ccsrbar;
- if (arg) {
- ccsrbar = *(phys_addr_t *)arg;
- dev->def->paddr += ccsrbar;
- }
-}
-
-EXPORT_SYMBOL(get_ccsrbar);
+++ /dev/null
-/*
- * arch/ppc/syslib/ppc85xx_common.h
- *
- * MPC85xx support routines
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef __PPC_SYSLIB_PPC85XX_COMMON_H
-#define __PPC_SYSLIB_PPC85XX_COMMON_H
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <asm/ocp.h>
-
-/* Provide access to ccsrbar for any modules, etc */
-phys_addr_t get_ccsrbar(void);
-
-/* Update the 85xx OCP tables paddr field */
-void mpc85xx_update_paddr_ocp(struct ocp_device *dev, void *ccsrbar);
-
-#endif /* __PPC_SYSLIB_PPC85XX_COMMON_H */
+++ /dev/null
-/*
- * arch/ppc/syslib/ppc85xx_setup.c
- *
- * MPC85XX common board code
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/serial.h>
-#include <linux/tty.h> /* for linux/serial_core.h */
-#include <linux/serial_core.h>
-
-#include <asm/prom.h>
-#include <asm/time.h>
-#include <asm/mpc85xx.h>
-#include <asm/immap_85xx.h>
-#include <asm/mmu.h>
-#include <asm/ocp.h>
-#include <asm/kgdb.h>
-
-/* Return the amount of memory */
-unsigned long __init
-mpc85xx_find_end_of_memory(void)
-{
- bd_t *binfo;
-
- binfo = (bd_t *) __res;
-
- return binfo->bi_memsize;
-}
-
-/* The decrementer counts at the system (internal) clock freq divided by 8 */
-void __init
-mpc85xx_calibrate_decr(void)
-{
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq, divisor;
-
- /* get the core frequency */
- freq = binfo->bi_busfreq;
-
- /* The timebase is updated every 8 bus clocks, HID0[SEL_TBCLK] = 0 */
- divisor = 8;
- tb_ticks_per_jiffy = freq / divisor / HZ;
- tb_to_us = mulhwu_scale_factor(freq / divisor, 1000000);
-
- /* Set the time base to zero */
- mtspr(SPRN_TBWL, 0);
- mtspr(SPRN_TBWU, 0);
-
- /* Clear any pending timer interrupts */
- mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);
-
- /* Enable decrementer interrupt */
- mtspr(SPRN_TCR, TCR_DIE);
-}
-
-#ifdef CONFIG_SERIAL_8250
-void __init
-mpc85xx_early_serial_map(void)
-{
- struct uart_port serial_req;
- bd_t *binfo = (bd_t *) __res;
- phys_addr_t duart_paddr = binfo->bi_immr_base + MPC85xx_UART0_OFFSET;
-
- /* Setup serial port access */
- memset(&serial_req, 0, sizeof (serial_req));
- serial_req.uartclk = binfo->bi_busfreq;
- serial_req.line = 0;
- serial_req.irq = MPC85xx_IRQ_DUART;
- serial_req.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
- serial_req.iotype = SERIAL_IO_MEM;
- serial_req.membase = ioremap(duart_paddr, MPC85xx_UART0_SIZE);
- serial_req.mapbase = duart_paddr;
- serial_req.regshift = 0;
-
-#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
- gen550_init(0, &serial_req);
-#endif
-
- if (early_serial_setup(&serial_req) != 0)
- printk("Early serial init of port 0 failed\n");
-
- /* Assume early_serial_setup() doesn't modify serial_req */
- duart_paddr = binfo->bi_immr_base + MPC85xx_UART1_OFFSET;
- serial_req.line = 1;
- serial_req.mapbase = duart_paddr;
- serial_req.membase = ioremap(duart_paddr, MPC85xx_UART1_SIZE);
-
-#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
- gen550_init(1, &serial_req);
-#endif
-
- if (early_serial_setup(&serial_req) != 0)
- printk("Early serial init of port 1 failed\n");
-}
-#endif
-
-void
-mpc85xx_restart(char *cmd)
-{
- local_irq_disable();
- abort();
-}
-
-void
-mpc85xx_power_off(void)
-{
- local_irq_disable();
- for(;;);
-}
-
-void
-mpc85xx_halt(void)
-{
- local_irq_disable();
- for(;;);
-}
-
-#ifdef CONFIG_PCI
-static void __init
-mpc85xx_setup_pci1(struct pci_controller *hose)
-{
- volatile struct ccsr_pci *pci;
- volatile struct ccsr_guts *guts;
- unsigned short temps;
- bd_t *binfo = (bd_t *) __res;
-
- pci = ioremap(binfo->bi_immr_base + MPC85xx_PCI1_OFFSET,
- MPC85xx_PCI1_SIZE);
-
- guts = ioremap(binfo->bi_immr_base + MPC85xx_GUTS_OFFSET,
- MPC85xx_GUTS_SIZE);
-
- early_read_config_word(hose, 0, 0, PCI_COMMAND, &temps);
- temps |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- early_write_config_word(hose, 0, 0, PCI_COMMAND, temps);
-
-#define PORDEVSR_PCI (0x00800000) /* PCI Mode */
- if (guts->pordevsr & PORDEVSR_PCI) {
- early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80);
- } else {
- /* PCI-X init */
- temps = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
- | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
- early_write_config_word(hose, 0, 0, PCIX_COMMAND, temps);
- }
-
- /* Disable all windows (except powar0 since its ignored) */
- pci->powar1 = 0;
- pci->powar2 = 0;
- pci->powar3 = 0;
- pci->powar4 = 0;
- pci->piwar1 = 0;
- pci->piwar2 = 0;
- pci->piwar3 = 0;
-
- /* Setup 512M Phys:PCI 1:1 outbound mem window @ 0x80000000 */
- pci->potar1 = (MPC85XX_PCI1_LOWER_MEM >> 12) & 0x000fffff;
- pci->potear1 = 0x00000000;
- pci->powbar1 = (MPC85XX_PCI1_LOWER_MEM >> 12) & 0x000fffff;
- pci->powar1 = 0x8004401c; /* Enable, Mem R/W, 512M */
-
- /* Setup 16M outboud IO windows @ 0xe2000000 */
- pci->potar2 = 0x00000000;
- pci->potear2 = 0x00000000;
- pci->powbar2 = (MPC85XX_PCI1_IO_BASE >> 12) & 0x000fffff;
- pci->powar2 = 0x80088017; /* Enable, IO R/W, 16M */
-
- /* Setup 2G inbound Memory Window @ 0 */
- pci->pitar1 = 0x00000000;
- pci->piwbar1 = 0x00000000;
- pci->piwar1 = 0xa0f5501e; /* Enable, Prefetch, Local
- Mem, Snoop R/W, 2G */
-}
-
-
-extern int mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin);
-extern int mpc85xx_exclude_device(u_char bus, u_char devfn);
-
-#if CONFIG_85xx_PCI2
-static void __init
-mpc85xx_setup_pci2(struct pci_controller *hose)
-{
- volatile struct ccsr_pci *pci;
- unsigned short temps;
- bd_t *binfo = (bd_t *) __res;
-
- pci = ioremap(binfo->bi_immr_base + MPC85xx_PCI2_OFFSET,
- MPC85xx_PCI2_SIZE);
-
- early_read_config_word(hose, 0, 0, PCI_COMMAND, &temps);
- temps |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- early_write_config_word(hose, 0, 0, PCI_COMMAND, temps);
- early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80);
-
- /* Disable all windows (except powar0 since its ignored) */
- pci->powar1 = 0;
- pci->powar2 = 0;
- pci->powar3 = 0;
- pci->powar4 = 0;
- pci->piwar1 = 0;
- pci->piwar2 = 0;
- pci->piwar3 = 0;
-
- /* Setup 512M Phys:PCI 1:1 outbound mem window @ 0xa0000000 */
- pci->potar1 = (MPC85XX_PCI2_LOWER_MEM >> 12) & 0x000fffff;
- pci->potear1 = 0x00000000;
- pci->powbar1 = (MPC85XX_PCI2_LOWER_MEM >> 12) & 0x000fffff;
- pci->powar1 = 0x8004401c; /* Enable, Mem R/W, 512M */
-
- /* Setup 16M outboud IO windows @ 0xe3000000 */
- pci->potar2 = 0x00000000;
- pci->potear2 = 0x00000000;
- pci->powbar2 = (MPC85XX_PCI2_IO_BASE >> 12) & 0x000fffff;
- pci->powar2 = 0x80088017; /* Enable, IO R/W, 16M */
-
- /* Setup 2G inbound Memory Window @ 0 */
- pci->pitar1 = 0x00000000;
- pci->piwbar1 = 0x00000000;
- pci->piwar1 = 0xa0f5501e; /* Enable, Prefetch, Local
- Mem, Snoop R/W, 2G */
-}
-#endif /* CONFIG_85xx_PCI2 */
-
-void __init
-mpc85xx_setup_hose(void)
-{
- struct pci_controller *hose_a;
-#ifdef CONFIG_85xx_PCI2
- struct pci_controller *hose_b;
-#endif
- bd_t *binfo = (bd_t *) __res;
-
- hose_a = pcibios_alloc_controller();
-
- if (!hose_a)
- return;
-
- ppc_md.pci_swizzle = common_swizzle;
- ppc_md.pci_map_irq = mpc85xx_map_irq;
-
- hose_a->first_busno = 0;
- hose_a->bus_offset = 0;
- hose_a->last_busno = 0xff;
-
- setup_indirect_pci(hose_a, binfo->bi_immr_base + PCI1_CFG_ADDR_OFFSET,
- binfo->bi_immr_base + PCI1_CFG_DATA_OFFSET);
- hose_a->set_cfg_type = 1;
-
- mpc85xx_setup_pci1(hose_a);
-
- hose_a->pci_mem_offset = MPC85XX_PCI1_MEM_OFFSET;
- hose_a->mem_space.start = MPC85XX_PCI1_LOWER_MEM;
- hose_a->mem_space.end = MPC85XX_PCI1_UPPER_MEM;
-
- hose_a->io_space.start = MPC85XX_PCI1_LOWER_IO;
- hose_a->io_space.end = MPC85XX_PCI1_UPPER_IO;
- hose_a->io_base_phys = MPC85XX_PCI1_IO_BASE;
-#if CONFIG_85xx_PCI2
- isa_io_base =
- (unsigned long) ioremap(MPC85XX_PCI1_IO_BASE,
- MPC85XX_PCI1_IO_SIZE +
- MPC85XX_PCI2_IO_SIZE);
-#else
- isa_io_base =
- (unsigned long) ioremap(MPC85XX_PCI1_IO_BASE,
- MPC85XX_PCI1_IO_SIZE);
-#endif
- hose_a->io_base_virt = (void *) isa_io_base;
-
- /* setup resources */
- pci_init_resource(&hose_a->mem_resources[0],
- MPC85XX_PCI1_LOWER_MEM,
- MPC85XX_PCI1_UPPER_MEM,
- IORESOURCE_MEM, "PCI1 host bridge");
-
- pci_init_resource(&hose_a->io_resource,
- MPC85XX_PCI1_LOWER_IO,
- MPC85XX_PCI1_UPPER_IO,
- IORESOURCE_IO, "PCI1 host bridge");
-
- ppc_md.pci_exclude_device = mpc85xx_exclude_device;
-
- hose_a->last_busno = pciauto_bus_scan(hose_a, hose_a->first_busno);
-
-#if CONFIG_85xx_PCI2
- hose_b = pcibios_alloc_controller();
-
- if (!hose_b)
- return;
-
- hose_b->bus_offset = hose_a->last_busno + 1;
- hose_b->first_busno = hose_a->last_busno + 1;
- hose_b->last_busno = 0xff;
-
- setup_indirect_pci(hose_b, binfo->bi_immr_base + PCI2_CFG_ADDR_OFFSET,
- binfo->bi_immr_base + PCI2_CFG_DATA_OFFSET);
- hose_b->set_cfg_type = 1;
-
- mpc85xx_setup_pci2(hose_b);
-
- hose_b->pci_mem_offset = MPC85XX_PCI2_MEM_OFFSET;
- hose_b->mem_space.start = MPC85XX_PCI2_LOWER_MEM;
- hose_b->mem_space.end = MPC85XX_PCI2_UPPER_MEM;
-
- hose_b->io_space.start = MPC85XX_PCI2_LOWER_IO;
- hose_b->io_space.end = MPC85XX_PCI2_UPPER_IO;
- hose_b->io_base_phys = MPC85XX_PCI2_IO_BASE;
- hose_b->io_base_virt = (void *) isa_io_base + MPC85XX_PCI1_IO_SIZE;
-
- /* setup resources */
- pci_init_resource(&hose_b->mem_resources[0],
- MPC85XX_PCI2_LOWER_MEM,
- MPC85XX_PCI2_UPPER_MEM,
- IORESOURCE_MEM, "PCI2 host bridge");
-
- pci_init_resource(&hose_b->io_resource,
- MPC85XX_PCI2_LOWER_IO,
- MPC85XX_PCI2_UPPER_IO,
- IORESOURCE_IO, "PCI2 host bridge");
-
- hose_b->last_busno = pciauto_bus_scan(hose_b, hose_b->first_busno);
-#endif
- return;
-}
-#endif /* CONFIG_PCI */
-
-
+++ /dev/null
-/*
- * arch/ppc/syslib/ppc85xx_setup.h
- *
- * MPC85XX common board definitions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __PPC_SYSLIB_PPC85XX_SETUP_H
-#define __PPC_SYSLIB_PPC85XX_SETUP_H
-
-#include <linux/config.h>
-#include <linux/serial.h>
-#include <linux/init.h>
-#include <asm/ppcboot.h>
-
-extern unsigned long mpc85xx_find_end_of_memory(void) __init;
-extern void mpc85xx_calibrate_decr(void) __init;
-extern void mpc85xx_early_serial_map(void) __init;
-extern void mpc85xx_restart(char *cmd);
-extern void mpc85xx_power_off(void);
-extern void mpc85xx_halt(void);
-extern void mpc85xx_setup_hose(void) __init;
-
-/* PCI config */
-#define PCI1_CFG_ADDR_OFFSET (0x8000)
-#define PCI1_CFG_DATA_OFFSET (0x8004)
-
-#define PCI2_CFG_ADDR_OFFSET (0x9000)
-#define PCI2_CFG_DATA_OFFSET (0x9004)
-
-/* Additional register for PCI-X configuration */
-#define PCIX_NEXT_CAP 0x60
-#define PCIX_CAP_ID 0x61
-#define PCIX_COMMAND 0x62
-#define PCIX_STATUS 0x64
-
-/* Serial Config */
-#define MPC85XX_0_SERIAL (CCSRBAR + 0x4500)
-#define MPC85XX_1_SERIAL (CCSRBAR + 0x4600)
-
-#ifdef CONFIG_SERIAL_MANY_PORTS
-#define RS_TABLE_SIZE 64
-#else
-#define RS_TABLE_SIZE 2
-#endif
-
-#define BASE_BAUD 0
-
-#define STD_UART_OP(num) \
- { 0, BASE_BAUD, num, MPC85xx_IRQ_DUART, \
- (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST), \
- iomem_base: (u8 *)MPC85XX_##num##_SERIAL, \
- io_type: SERIAL_IO_MEM},
-
-/* Offset of CPM register space */
-#define CPM_MAP_ADDR (CCSRBAR + MPC85xx_CPM_OFFSET)
-
-#endif /* __PPC_SYSLIB_PPC85XX_SETUP_H */
+++ /dev/null
-/*
- * hvcserver.c
- * Copyright (C) 2004 Ryan S Arnold, IBM Corporation
- *
- * PPC64 virtual I/O console server support.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <asm/hvcall.h>
-#include <asm/hvcserver.h>
-#include <asm/io.h>
-
-#define HVCS_ARCH_VERSION "1.0.0"
-
-MODULE_AUTHOR("Ryan S. Arnold <rsa@us.ibm.com>");
-MODULE_DESCRIPTION("IBM hvcs ppc64 API");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(HVCS_ARCH_VERSION);
-
-/*
- * Convert arch specific return codes into relevant errnos. The hvcs
- * functions aren't performance sensitive, so this conversion isn't an
- * issue.
- */
-int hvcs_convert(long to_convert)
-{
- switch (to_convert) {
- case H_Success:
- return 0;
- case H_Parameter:
- return -EINVAL;
- case H_Hardware:
- return -EIO;
- case H_Busy:
- case H_LongBusyOrder1msec:
- case H_LongBusyOrder10msec:
- case H_LongBusyOrder100msec:
- case H_LongBusyOrder1sec:
- case H_LongBusyOrder10sec:
- case H_LongBusyOrder100sec:
- return -EBUSY;
- case H_Function: /* fall through */
- default:
- return -EPERM;
- }
-}
-
-int hvcs_free_partner_info(struct list_head *head)
-{
- struct hvcs_partner_info *pi;
- struct list_head *element;
-
- if (!head) {
- return -EINVAL;
- }
-
- while (!list_empty(head)) {
- element = head->next;
- pi = list_entry(element, struct hvcs_partner_info, node);
- list_del(element);
- kfree(pi);
- }
-
- return 0;
-}
-EXPORT_SYMBOL(hvcs_free_partner_info);
-
-/* Helper function for hvcs_get_partner_info */
-int hvcs_next_partner(unsigned int unit_address,
- unsigned long last_p_partition_ID,
- unsigned long last_p_unit_address, unsigned long *pi_buff)
-
-{
- long retval;
- retval = plpar_hcall_norets(H_VTERM_PARTNER_INFO, unit_address,
- last_p_partition_ID,
- last_p_unit_address, virt_to_phys(pi_buff));
- return hvcs_convert(retval);
-}
-
-/*
- * The unit_address parameter is the unit address of the vty-server vdevice
- * in whose partner information the caller is interested. This function
- * uses a pointer to a list_head instance in which to store the partner info.
- * This function returns non-zero on success, or if there is no partner info.
- *
- * Invocation of this function should always be followed by an invocation of
- * hvcs_free_partner_info() using a pointer to the SAME list head instance
- * that was used to store the partner_info list.
- */
-int hvcs_get_partner_info(unsigned int unit_address, struct list_head *head,
- unsigned long *pi_buff)
-{
- /*
- * This is a page sized buffer to be passed to hvcall per invocation.
- * NOTE: the first long returned is unit_address. The second long
- * returned is the partition ID and starting with pi_buff[2] are
- * HVCS_CLC_LENGTH characters, which are diff size than the unsigned
- * long, hence the casting mumbojumbo you see later.
- */
- unsigned long last_p_partition_ID;
- unsigned long last_p_unit_address;
- struct hvcs_partner_info *next_partner_info = NULL;
- int more = 1;
- int retval;
-
- memset(pi_buff, 0x00, PAGE_SIZE);
- /* invalid parameters */
- if (!head)
- return -EINVAL;
-
- last_p_partition_ID = last_p_unit_address = ~0UL;
- INIT_LIST_HEAD(head);
-
- if (!pi_buff)
- return -ENOMEM;
-
- do {
- retval = hvcs_next_partner(unit_address, last_p_partition_ID,
- last_p_unit_address, pi_buff);
- if (retval) {
- /*
- * Don't indicate that we've failed if we have
- * any list elements.
- */
- if (!list_empty(head))
- return 0;
- return retval;
- }
-
- last_p_partition_ID = pi_buff[0];
- last_p_unit_address = pi_buff[1];
-
- /* This indicates that there are no further partners */
- if (last_p_partition_ID == ~0UL
- && last_p_unit_address == ~0UL)
- break;
-
- /* This is a very small struct and will be freed soon in
- * hvcs_free_partner_info(). */
- next_partner_info = kmalloc(sizeof(struct hvcs_partner_info),
- GFP_ATOMIC);
-
- if (!next_partner_info) {
- printk(KERN_WARNING "HVCONSOLE: kmalloc() failed to"
- " allocate partner info struct.\n");
- hvcs_free_partner_info(head);
- return -ENOMEM;
- }
-
- next_partner_info->unit_address
- = (unsigned int)last_p_unit_address;
- next_partner_info->partition_ID
- = (unsigned int)last_p_partition_ID;
-
- /* copy the Null-term char too */
- strncpy(&next_partner_info->location_code[0],
- (char *)&pi_buff[2],
- strlen((char *)&pi_buff[2]) + 1);
-
- list_add_tail(&(next_partner_info->node), head);
- next_partner_info = NULL;
-
- } while (more);
-
- return 0;
-}
-EXPORT_SYMBOL(hvcs_get_partner_info);
-
-/*
- * If this function is called once and -EINVAL is returned it may
- * indicate that the partner info needs to be refreshed for the
- * target unit address at which point the caller must invoke
- * hvcs_get_partner_info() and then call this function again. If,
- * for a second time, -EINVAL is returned then it indicates that
- * there is probably already a partner connection registered to a
- * different vty-server@ vdevice. It is also possible that a second
- * -EINVAL may indicate that one of the parms is not valid, for
- * instance if the link was removed between the vty-server@ vdevice
- * and the vty@ vdevice that you are trying to open. Don't shoot the
- * messenger. Firmware implemented it this way.
- */
-int hvcs_register_connection( unsigned int unit_address,
- unsigned int p_partition_ID, unsigned int p_unit_address)
-{
- long retval;
- retval = plpar_hcall_norets(H_REGISTER_VTERM, unit_address,
- p_partition_ID, p_unit_address);
- return hvcs_convert(retval);
-}
-EXPORT_SYMBOL(hvcs_register_connection);
-
-/*
- * If -EBUSY is returned continue to call this function
- * until 0 is returned.
- */
-int hvcs_free_connection(unsigned int unit_address)
-{
- long retval;
- retval = plpar_hcall_norets(H_FREE_VTERM, unit_address);
- return hvcs_convert(retval);
-}
-EXPORT_SYMBOL(hvcs_free_connection);
+++ /dev/null
-/*
- * Routines to emulate some Altivec/VMX instructions, specifically
- * those that can trap when given denormalized operands in Java mode.
- */
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-
-/* Functions in vector.S */
-extern void vaddfp(vector128 *dst, vector128 *a, vector128 *b);
-extern void vsubfp(vector128 *dst, vector128 *a, vector128 *b);
-extern void vmaddfp(vector128 *dst, vector128 *a, vector128 *b, vector128 *c);
-extern void vnmsubfp(vector128 *dst, vector128 *a, vector128 *b, vector128 *c);
-extern void vrefp(vector128 *dst, vector128 *src);
-extern void vrsqrtefp(vector128 *dst, vector128 *src);
-extern void vexptep(vector128 *dst, vector128 *src);
-
-static unsigned int exp2s[8] = {
- 0x800000,
- 0x8b95c2,
- 0x9837f0,
- 0xa5fed7,
- 0xb504f3,
- 0xc5672a,
- 0xd744fd,
- 0xeac0c7
-};
-
-/*
- * Computes an estimate of 2^x. The `s' argument is the 32-bit
- * single-precision floating-point representation of x.
- */
-static unsigned int eexp2(unsigned int s)
-{
- int exp, pwr;
- unsigned int mant, frac;
-
- /* extract exponent field from input */
- exp = ((s >> 23) & 0xff) - 127;
- if (exp > 7) {
- /* check for NaN input */
- if (exp == 128 && (s & 0x7fffff) != 0)
- return s | 0x400000; /* return QNaN */
- /* 2^-big = 0, 2^+big = +Inf */
- return (s & 0x80000000)? 0: 0x7f800000; /* 0 or +Inf */
- }
- if (exp < -23)
- return 0x3f800000; /* 1.0 */
-
- /* convert to fixed point integer in 9.23 representation */
- pwr = (s & 0x7fffff) | 0x800000;
- if (exp > 0)
- pwr <<= exp;
- else
- pwr >>= -exp;
- if (s & 0x80000000)
- pwr = -pwr;
-
- /* extract integer part, which becomes exponent part of result */
- exp = (pwr >> 23) + 126;
- if (exp >= 254)
- return 0x7f800000;
- if (exp < -23)
- return 0;
-
- /* table lookup on top 3 bits of fraction to get mantissa */
- mant = exp2s[(pwr >> 20) & 7];
-
- /* linear interpolation using remaining 20 bits of fraction */
- asm("mulhwu %0,%1,%2" : "=r" (frac)
- : "r" (pwr << 12), "r" (0x172b83ff));
- asm("mulhwu %0,%1,%2" : "=r" (frac) : "r" (frac), "r" (mant));
- mant += frac;
-
- if (exp >= 0)
- return mant + (exp << 23);
-
- /* denormalized result */
- exp = -exp;
- mant += 1 << (exp - 1);
- return mant >> exp;
-}
-
-/*
- * Computes an estimate of log_2(x). The `s' argument is the 32-bit
- * single-precision floating-point representation of x.
- */
-static unsigned int elog2(unsigned int s)
-{
- int exp, mant, lz, frac;
-
- exp = s & 0x7f800000;
- mant = s & 0x7fffff;
- if (exp == 0x7f800000) { /* Inf or NaN */
- if (mant != 0)
- s |= 0x400000; /* turn NaN into QNaN */
- return s;
- }
- if ((exp | mant) == 0) /* +0 or -0 */
- return 0xff800000; /* return -Inf */
-
- if (exp == 0) {
- /* denormalized */
- asm("cntlzw %0,%1" : "=r" (lz) : "r" (mant));
- mant <<= lz - 8;
- exp = (-118 - lz) << 23;
- } else {
- mant |= 0x800000;
- exp -= 127 << 23;
- }
-
- if (mant >= 0xb504f3) { /* 2^0.5 * 2^23 */
- exp |= 0x400000; /* 0.5 * 2^23 */
- asm("mulhwu %0,%1,%2" : "=r" (mant)
- : "r" (mant), "r" (0xb504f334)); /* 2^-0.5 * 2^32 */
- }
- if (mant >= 0x9837f0) { /* 2^0.25 * 2^23 */
- exp |= 0x200000; /* 0.25 * 2^23 */
- asm("mulhwu %0,%1,%2" : "=r" (mant)
- : "r" (mant), "r" (0xd744fccb)); /* 2^-0.25 * 2^32 */
- }
- if (mant >= 0x8b95c2) { /* 2^0.125 * 2^23 */
- exp |= 0x100000; /* 0.125 * 2^23 */
- asm("mulhwu %0,%1,%2" : "=r" (mant)
- : "r" (mant), "r" (0xeac0c6e8)); /* 2^-0.125 * 2^32 */
- }
- if (mant > 0x800000) { /* 1.0 * 2^23 */
- /* calculate (mant - 1) * 1.381097463 */
- /* 1.381097463 == 0.125 / (2^0.125 - 1) */
- asm("mulhwu %0,%1,%2" : "=r" (frac)
- : "r" ((mant - 0x800000) << 1), "r" (0xb0c7cd3a));
- exp += frac;
- }
- s = exp & 0x80000000;
- if (exp != 0) {
- if (s)
- exp = -exp;
- asm("cntlzw %0,%1" : "=r" (lz) : "r" (exp));
- lz = 8 - lz;
- if (lz > 0)
- exp >>= lz;
- else if (lz < 0)
- exp <<= -lz;
- s += ((lz + 126) << 23) + exp;
- }
- return s;
-}
-
-#define VSCR_SAT 1
-
-static int ctsxs(unsigned int x, int scale, unsigned int *vscrp)
-{
- int exp, mant;
-
- exp = (x >> 23) & 0xff;
- mant = x & 0x7fffff;
- if (exp == 255 && mant != 0)
- return 0; /* NaN -> 0 */
- exp = exp - 127 + scale;
- if (exp < 0)
- return 0; /* round towards zero */
- if (exp >= 31) {
- /* saturate, unless the result would be -2^31 */
- if (x + (scale << 23) != 0xcf000000)
- *vscrp |= VSCR_SAT;
- return (x & 0x80000000)? 0x80000000: 0x7fffffff;
- }
- mant |= 0x800000;
- mant = (mant << 7) >> (30 - exp);
- return (x & 0x80000000)? -mant: mant;
-}
-
-static unsigned int ctuxs(unsigned int x, int scale, unsigned int *vscrp)
-{
- int exp;
- unsigned int mant;
-
- exp = (x >> 23) & 0xff;
- mant = x & 0x7fffff;
- if (exp == 255 && mant != 0)
- return 0; /* NaN -> 0 */
- exp = exp - 127 + scale;
- if (exp < 0)
- return 0; /* round towards zero */
- if (x & 0x80000000) {
- /* negative => saturate to 0 */
- *vscrp |= VSCR_SAT;
- return 0;
- }
- if (exp >= 32) {
- /* saturate */
- *vscrp |= VSCR_SAT;
- return 0xffffffff;
- }
- mant |= 0x800000;
- mant = (mant << 8) >> (31 - exp);
- return mant;
-}
-
-/* Round to floating integer, towards 0 */
-static unsigned int rfiz(unsigned int x)
-{
- int exp;
-
- exp = ((x >> 23) & 0xff) - 127;
- if (exp == 128 && (x & 0x7fffff) != 0)
- return x | 0x400000; /* NaN -> make it a QNaN */
- if (exp >= 23)
- return x; /* it's an integer already (or Inf) */
- if (exp < 0)
- return x & 0x80000000; /* |x| < 1.0 rounds to 0 */
- return x & ~(0x7fffff >> exp);
-}
-
-/* Round to floating integer, towards +/- Inf */
-static unsigned int rfii(unsigned int x)
-{
- int exp, mask;
-
- exp = ((x >> 23) & 0xff) - 127;
- if (exp == 128 && (x & 0x7fffff) != 0)
- return x | 0x400000; /* NaN -> make it a QNaN */
- if (exp >= 23)
- return x; /* it's an integer already (or Inf) */
- if ((x & 0x7fffffff) == 0)
- return x; /* +/-0 -> +/-0 */
- if (exp < 0)
- /* 0 < |x| < 1.0 rounds to +/- 1.0 */
- return (x & 0x80000000) | 0x3f800000;
- mask = 0x7fffff >> exp;
- /* mantissa overflows into exponent - that's OK,
- it can't overflow into the sign bit */
- return (x + mask) & ~mask;
-}
-
-/* Round to floating integer, to nearest */
-static unsigned int rfin(unsigned int x)
-{
- int exp, half;
-
- exp = ((x >> 23) & 0xff) - 127;
- if (exp == 128 && (x & 0x7fffff) != 0)
- return x | 0x400000; /* NaN -> make it a QNaN */
- if (exp >= 23)
- return x; /* it's an integer already (or Inf) */
- if (exp < -1)
- return x & 0x80000000; /* |x| < 0.5 -> +/-0 */
- if (exp == -1)
- /* 0.5 <= |x| < 1.0 rounds to +/- 1.0 */
- return (x & 0x80000000) | 0x3f800000;
- half = 0x400000 >> exp;
- /* add 0.5 to the magnitude and chop off the fraction bits */
- return (x + half) & ~(0x7fffff >> exp);
-}
-
-int
-emulate_altivec(struct pt_regs *regs)
-{
- unsigned int instr, i;
- unsigned int va, vb, vc, vd;
- vector128 *vrs;
-
- if (get_user(instr, (unsigned int *) regs->nip))
- return -EFAULT;
- if ((instr >> 26) != 4)
- return -EINVAL; /* not an altivec instruction */
- vd = (instr >> 21) & 0x1f;
- va = (instr >> 16) & 0x1f;
- vb = (instr >> 11) & 0x1f;
- vc = (instr >> 6) & 0x1f;
-
- vrs = current->thread.vr;
- switch (instr & 0x3f) {
- case 10:
- switch (vc) {
- case 0: /* vaddfp */
- vaddfp(&vrs[vd], &vrs[va], &vrs[vb]);
- break;
- case 1: /* vsubfp */
- vsubfp(&vrs[vd], &vrs[va], &vrs[vb]);
- break;
- case 4: /* vrefp */
- vrefp(&vrs[vd], &vrs[vb]);
- break;
- case 5: /* vrsqrtefp */
- vrsqrtefp(&vrs[vd], &vrs[vb]);
- break;
- case 6: /* vexptefp */
- for (i = 0; i < 4; ++i)
- vrs[vd].u[i] = eexp2(vrs[vb].u[i]);
- break;
- case 7: /* vlogefp */
- for (i = 0; i < 4; ++i)
- vrs[vd].u[i] = elog2(vrs[vb].u[i]);
- break;
- case 8: /* vrfin */
- for (i = 0; i < 4; ++i)
- vrs[vd].u[i] = rfin(vrs[vb].u[i]);
- break;
- case 9: /* vrfiz */
- for (i = 0; i < 4; ++i)
- vrs[vd].u[i] = rfiz(vrs[vb].u[i]);
- break;
- case 10: /* vrfip */
- for (i = 0; i < 4; ++i) {
- u32 x = vrs[vb].u[i];
- x = (x & 0x80000000)? rfiz(x): rfii(x);
- vrs[vd].u[i] = x;
- }
- break;
- case 11: /* vrfim */
- for (i = 0; i < 4; ++i) {
- u32 x = vrs[vb].u[i];
- x = (x & 0x80000000)? rfii(x): rfiz(x);
- vrs[vd].u[i] = x;
- }
- break;
- case 14: /* vctuxs */
- for (i = 0; i < 4; ++i)
- vrs[vd].u[i] = ctuxs(vrs[vb].u[i], va,
- ¤t->thread.vscr.u[3]);
- break;
- case 15: /* vctsxs */
- for (i = 0; i < 4; ++i)
- vrs[vd].u[i] = ctsxs(vrs[vb].u[i], va,
- ¤t->thread.vscr.u[3]);
- break;
- default:
- return -EINVAL;
- }
- break;
- case 46: /* vmaddfp */
- vmaddfp(&vrs[vd], &vrs[va], &vrs[vb], &vrs[vc]);
- break;
- case 47: /* vnmsubfp */
- vnmsubfp(&vrs[vd], &vrs[va], &vrs[vb], &vrs[vc]);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
+++ /dev/null
-#include <asm/ppc_asm.h>
-#include <asm/processor.h>
-
-/*
- * The routines below are in assembler so we can closely control the
- * usage of floating-point registers. These routines must be called
- * with preempt disabled.
- */
- .section ".toc","aw"
-fpzero:
- .tc FD_0_0[TC],0
-fpone:
- .tc FD_3ff00000_0[TC],0x3ff0000000000000 /* 1.0 */
-fphalf:
- .tc FD_3fe00000_0[TC],0x3fe0000000000000 /* 0.5 */
-
- .text
-/*
- * Internal routine to enable floating point and set FPSCR to 0.
- * Don't call it from C; it doesn't use the normal calling convention.
- */
-fpenable:
- mfmsr r10
- ori r11,r10,MSR_FP
- mtmsr r11
- isync
- stfd fr31,-8(r1)
- stfd fr0,-16(r1)
- stfd fr1,-24(r1)
- mffs fr31
- lfd fr1,fpzero@toc(r2)
- mtfsf 0xff,fr1
- blr
-
-fpdisable:
- mtlr r12
- mtfsf 0xff,fr31
- lfd fr1,-24(r1)
- lfd fr0,-16(r1)
- lfd fr31,-8(r1)
- mtmsr r10
- isync
- blr
-
-/*
- * Vector add, floating point.
- */
-_GLOBAL(vaddfp)
- mflr r12
- bl fpenable
- li r0,4
- mtctr r0
- li r6,0
-1: lfsx fr0,r4,r6
- lfsx fr1,r5,r6
- fadds fr0,fr0,fr1
- stfsx fr0,r3,r6
- addi r6,r6,4
- bdnz 1b
- b fpdisable
-
-/*
- * Vector subtract, floating point.
- */
-_GLOBAL(vsubfp)
- mflr r12
- bl fpenable
- li r0,4
- mtctr r0
- li r6,0
-1: lfsx fr0,r4,r6
- lfsx fr1,r5,r6
- fsubs fr0,fr0,fr1
- stfsx fr0,r3,r6
- addi r6,r6,4
- bdnz 1b
- b fpdisable
-
-/*
- * Vector multiply and add, floating point.
- */
-_GLOBAL(vmaddfp)
- mflr r12
- bl fpenable
- stfd fr2,-32(r1)
- li r0,4
- mtctr r0
- li r7,0
-1: lfsx fr0,r4,r7
- lfsx fr1,r5,r7
- lfsx fr2,r6,r7
- fmadds fr0,fr0,fr1,fr2
- stfsx fr0,r3,r7
- addi r7,r7,4
- bdnz 1b
- lfd fr2,-32(r1)
- b fpdisable
-
-/*
- * Vector negative multiply and subtract, floating point.
- */
-_GLOBAL(vnmsubfp)
- mflr r12
- bl fpenable
- stfd fr2,-32(r1)
- li r0,4
- mtctr r0
- li r7,0
-1: lfsx fr0,r4,r7
- lfsx fr1,r5,r7
- lfsx fr2,r6,r7
- fnmsubs fr0,fr0,fr1,fr2
- stfsx fr0,r3,r7
- addi r7,r7,4
- bdnz 1b
- lfd fr2,-32(r1)
- b fpdisable
-
-/*
- * Vector reciprocal estimate. We just compute 1.0/x.
- * r3 -> destination, r4 -> source.
- */
-_GLOBAL(vrefp)
- mflr r12
- bl fpenable
- li r0,4
- lfd fr1,fpone@toc(r2)
- mtctr r0
- li r6,0
-1: lfsx fr0,r4,r6
- fdivs fr0,fr1,fr0
- stfsx fr0,r3,r6
- addi r6,r6,4
- bdnz 1b
- b fpdisable
-
-/*
- * Vector reciprocal square-root estimate, floating point.
- * We use the frsqrte instruction for the initial estimate followed
- * by 2 iterations of Newton-Raphson to get sufficient accuracy.
- * r3 -> destination, r4 -> source.
- */
-_GLOBAL(vrsqrtefp)
- mflr r12
- bl fpenable
- stfd fr2,-32(r1)
- stfd fr3,-40(r1)
- stfd fr4,-48(r1)
- stfd fr5,-56(r1)
- li r0,4
- lfd fr4,fpone@toc(r2)
- lfd fr5,fphalf@toc(r2)
- mtctr r0
- li r6,0
-1: lfsx fr0,r4,r6
- frsqrte fr1,fr0 /* r = frsqrte(s) */
- fmuls fr3,fr1,fr0 /* r * s */
- fmuls fr2,fr1,fr5 /* r * 0.5 */
- fnmsubs fr3,fr1,fr3,fr4 /* 1 - s * r * r */
- fmadds fr1,fr2,fr3,fr1 /* r = r + 0.5 * r * (1 - s * r * r) */
- fmuls fr3,fr1,fr0 /* r * s */
- fmuls fr2,fr1,fr5 /* r * 0.5 */
- fnmsubs fr3,fr1,fr3,fr4 /* 1 - s * r * r */
- fmadds fr1,fr2,fr3,fr1 /* r = r + 0.5 * r * (1 - s * r * r) */
- stfsx fr1,r3,r6
- addi r6,r6,4
- bdnz 1b
- lfd fr5,-56(r1)
- lfd fr4,-48(r1)
- lfd fr3,-40(r1)
- lfd fr2,-32(r1)
- b fpdisable
+++ /dev/null
-/*
- * arch/ppc64/lib/e2a.c
- *
- * EBCDIC to ASCII conversion
- *
- * This function moved here from arch/ppc64/kernel/viopath.c
- *
- * (C) Copyright 2000-2004 IBM Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) anyu later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/module.h>
-
-unsigned char e2a(unsigned char x)
-{
- switch (x) {
- case 0xF0:
- return '0';
- case 0xF1:
- return '1';
- case 0xF2:
- return '2';
- case 0xF3:
- return '3';
- case 0xF4:
- return '4';
- case 0xF5:
- return '5';
- case 0xF6:
- return '6';
- case 0xF7:
- return '7';
- case 0xF8:
- return '8';
- case 0xF9:
- return '9';
- case 0xC1:
- return 'A';
- case 0xC2:
- return 'B';
- case 0xC3:
- return 'C';
- case 0xC4:
- return 'D';
- case 0xC5:
- return 'E';
- case 0xC6:
- return 'F';
- case 0xC7:
- return 'G';
- case 0xC8:
- return 'H';
- case 0xC9:
- return 'I';
- case 0xD1:
- return 'J';
- case 0xD2:
- return 'K';
- case 0xD3:
- return 'L';
- case 0xD4:
- return 'M';
- case 0xD5:
- return 'N';
- case 0xD6:
- return 'O';
- case 0xD7:
- return 'P';
- case 0xD8:
- return 'Q';
- case 0xD9:
- return 'R';
- case 0xE2:
- return 'S';
- case 0xE3:
- return 'T';
- case 0xE4:
- return 'U';
- case 0xE5:
- return 'V';
- case 0xE6:
- return 'W';
- case 0xE7:
- return 'X';
- case 0xE8:
- return 'Y';
- case 0xE9:
- return 'Z';
- }
- return ' ';
-}
-EXPORT_SYMBOL(e2a);
-
-
+++ /dev/null
-/*
- * Functions which are too large to be inlined.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- if (likely(access_ok(VERIFY_READ, from, n)))
- n = __copy_from_user(to, from, n);
- else
- memset(to, 0, n);
- return n;
-}
-
-unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- if (likely(access_ok(VERIFY_WRITE, to, n)))
- n = __copy_to_user(to, from, n);
- return n;
-}
-
-unsigned long copy_in_user(void __user *to, const void __user *from,
- unsigned long n)
-{
- might_sleep();
- if (likely(access_ok(VERIFY_READ, from, n) &&
- access_ok(VERIFY_WRITE, to, n)))
- n =__copy_tofrom_user(to, from, n);
- return n;
-}
-
-EXPORT_SYMBOL(copy_from_user);
-EXPORT_SYMBOL(copy_to_user);
-EXPORT_SYMBOL(copy_in_user);
-
+++ /dev/null
-/*
- * PowerPC64 SLB support.
- *
- * Copyright (C) 2004 David Gibson <dwg@au.ibm.com>, IBM
- * Based on earlier code writteh by:
- * Dave Engebretsen and Mike Corrigan {engebret|mikejc}@us.ibm.com
- * Copyright (c) 2001 Dave Engebretsen
- * Copyright (C) 2002 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <asm/mmu_context.h>
-#include <asm/paca.h>
-#include <asm/naca.h>
-#include <asm/cputable.h>
-
-extern void slb_allocate(unsigned long ea);
-
-static inline void create_slbe(unsigned long ea, unsigned long vsid,
- unsigned long flags, unsigned long entry)
-{
- ea = (ea & ESID_MASK) | SLB_ESID_V | entry;
- vsid = (vsid << SLB_VSID_SHIFT) | flags;
- asm volatile("slbmte %0,%1" :
- : "r" (vsid), "r" (ea)
- : "memory" );
-}
-
-static void slb_add_bolted(void)
-{
-#ifndef CONFIG_PPC_ISERIES
- WARN_ON(!irqs_disabled());
-
- /* If you change this make sure you change SLB_NUM_BOLTED
- * appropriately too */
-
- /* Slot 1 - first VMALLOC segment
- * Since modules end up there it gets hit very heavily.
- */
- create_slbe(VMALLOCBASE, get_kernel_vsid(VMALLOCBASE),
- SLB_VSID_KERNEL, 1);
-
- asm volatile("isync":::"memory");
-#endif
-}
-
-/* Flush all user entries from the segment table of the current processor. */
-void switch_slb(struct task_struct *tsk, struct mm_struct *mm)
-{
- unsigned long offset = get_paca()->slb_cache_ptr;
- unsigned long esid_data;
- unsigned long pc = KSTK_EIP(tsk);
- unsigned long stack = KSTK_ESP(tsk);
- unsigned long unmapped_base;
-
- if (offset <= SLB_CACHE_ENTRIES) {
- int i;
- asm volatile("isync" : : : "memory");
- for (i = 0; i < offset; i++) {
- esid_data = (unsigned long)get_paca()->slb_cache[i]
- << SID_SHIFT;
- asm volatile("slbie %0" : : "r" (esid_data));
- }
- asm volatile("isync" : : : "memory");
- } else {
- asm volatile("isync; slbia; isync" : : : "memory");
- slb_add_bolted();
- }
-
- /* Workaround POWER5 < DD2.1 issue */
- if (offset == 1 || offset > SLB_CACHE_ENTRIES) {
- /* flush segment in EEH region, we shouldn't ever
- * access addresses in this region. */
- asm volatile("slbie %0" : : "r"(EEHREGIONBASE));
- }
-
- get_paca()->slb_cache_ptr = 0;
- get_paca()->context = mm->context;
-
- /*
- * preload some userspace segments into the SLB.
- */
- if (test_tsk_thread_flag(tsk, TIF_32BIT))
- unmapped_base = TASK_UNMAPPED_BASE_USER32;
- else
- unmapped_base = TASK_UNMAPPED_BASE_USER64;
-
- if (pc >= KERNELBASE)
- return;
- slb_allocate(pc);
-
- if (GET_ESID(pc) == GET_ESID(stack))
- return;
-
- if (stack >= KERNELBASE)
- return;
- slb_allocate(stack);
-
- if ((GET_ESID(pc) == GET_ESID(unmapped_base))
- || (GET_ESID(stack) == GET_ESID(unmapped_base)))
- return;
-
- if (unmapped_base >= KERNELBASE)
- return;
- slb_allocate(unmapped_base);
-}
-
-void slb_initialize(void)
-{
-#ifdef CONFIG_PPC_ISERIES
- asm volatile("isync; slbia; isync":::"memory");
-#else
- unsigned long flags = SLB_VSID_KERNEL;
-
- /* Invalidate the entire SLB (even slot 0) & all the ERATS */
- if (cur_cpu_spec->cpu_features & CPU_FTR_16M_PAGE)
- flags |= SLB_VSID_L;
-
- asm volatile("isync":::"memory");
- asm volatile("slbmte %0,%0"::"r" (0) : "memory");
- asm volatile("isync; slbia; isync":::"memory");
- create_slbe(KERNELBASE, get_kernel_vsid(KERNELBASE),
- flags, 0);
-
-#endif
- slb_add_bolted();
- get_paca()->stab_rr = SLB_NUM_BOLTED;
-}
+++ /dev/null
-/*
- * arch/ppc64/mm/slb_low.S
- *
- * Low-level SLB routines
- *
- * Copyright (C) 2004 David Gibson <dwg@au.ibm.com>, IBM
- *
- * Based on earlier C version:
- * Dave Engebretsen and Mike Corrigan {engebret|mikejc}@us.ibm.com
- * Copyright (c) 2001 Dave Engebretsen
- * Copyright (C) 2002 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/mmu.h>
-#include <asm/ppc_asm.h>
-#include <asm/offsets.h>
-#include <asm/cputable.h>
-
-/* void slb_allocate(unsigned long ea);
- *
- * Create an SLB entry for the given EA (user or kernel).
- * r3 = faulting address, r13 = PACA
- * r9, r10, r11 are clobbered by this function
- * No other registers are examined or changed.
- */
-_GLOBAL(slb_allocate)
- /*
- * First find a slot, round robin. Previously we tried to find
- * a free slot first but that took too long. Unfortunately we
- * dont have any LRU information to help us choose a slot.
- */
- ld r10,PACASTABRR(r13)
-3:
- addi r10,r10,1
- /* use a cpu feature mask if we ever change our slb size */
- cmpldi r10,SLB_NUM_ENTRIES
-
- blt+ 4f
- li r10,SLB_NUM_BOLTED
-
- /*
- * Never cast out the segment for our kernel stack. Since we
- * dont invalidate the ERAT we could have a valid translation
- * for the kernel stack during the first part of exception exit
- * which gets invalidated due to a tlbie from another cpu at a
- * non recoverable point (after setting srr0/1) - Anton
- */
-4: slbmfee r11,r10
- srdi r11,r11,27
- /*
- * Use paca->ksave as the value of the kernel stack pointer,
- * because this is valid at all times.
- * The >> 27 (rather than >> 28) is so that the LSB is the
- * valid bit - this way we check valid and ESID in one compare.
- * In order to completely close the tiny race in the context
- * switch (between updating r1 and updating paca->ksave),
- * we check against both r1 and paca->ksave.
- */
- srdi r9,r1,27
- ori r9,r9,1 /* mangle SP for later compare */
- cmpd r11,r9
- beq- 3b
- ld r9,PACAKSAVE(r13)
- srdi r9,r9,27
- ori r9,r9,1
- cmpd r11,r9
- beq- 3b
-
- std r10,PACASTABRR(r13)
-
- /* r3 = faulting address, r10 = entry */
-
- srdi r9,r3,60 /* get region */
- srdi r3,r3,28 /* get esid */
- cmpldi cr7,r9,0xc /* cmp KERNELBASE for later use */
-
- /* r9 = region, r3 = esid, cr7 = <>KERNELBASE */
-
- rldicr. r11,r3,32,16
- bne- 8f /* invalid ea bits set */
- addi r11,r9,-1
- cmpldi r11,0xb
- blt- 8f /* invalid region */
-
- /* r9 = region, r3 = esid, r10 = entry, cr7 = <>KERNELBASE */
-
- blt cr7,0f /* user or kernel? */
-
- /* kernel address */
- li r11,SLB_VSID_KERNEL
-BEGIN_FTR_SECTION
- bne cr7,9f
- li r11,(SLB_VSID_KERNEL|SLB_VSID_L)
-END_FTR_SECTION_IFSET(CPU_FTR_16M_PAGE)
- b 9f
-
-0: /* user address */
- li r11,SLB_VSID_USER
-#ifdef CONFIG_HUGETLB_PAGE
-BEGIN_FTR_SECTION
- /* check against the hugepage ranges */
- cmpldi r3,(TASK_HPAGE_END>>SID_SHIFT)
- bge 6f /* >= TASK_HPAGE_END */
- cmpldi r3,(TASK_HPAGE_BASE>>SID_SHIFT)
- bge 5f /* TASK_HPAGE_BASE..TASK_HPAGE_END */
- cmpldi r3,16
- bge 6f /* 4GB..TASK_HPAGE_BASE */
-
- lhz r9,PACAHTLBSEGS(r13)
- srd r9,r9,r3
- andi. r9,r9,1
- beq 6f
-
-5: /* this is a hugepage user address */
- li r11,(SLB_VSID_USER|SLB_VSID_L)
-END_FTR_SECTION_IFSET(CPU_FTR_16M_PAGE)
-#endif /* CONFIG_HUGETLB_PAGE */
-
-6: ld r9,PACACONTEXTID(r13)
-
-9: /* r9 = "context", r3 = esid, r11 = flags, r10 = entry */
-
- rldimi r9,r3,15,0 /* r9= VSID ordinal */
-
-7: rldimi r10,r3,28,0 /* r10= ESID<<28 | entry */
- oris r10,r10,SLB_ESID_V@h /* r10 |= SLB_ESID_V */
-
- /* r9 = ordinal, r3 = esid, r11 = flags, r10 = esid_data */
-
- li r3,VSID_RANDOMIZER@higher
- sldi r3,r3,32
- oris r3,r3,VSID_RANDOMIZER@h
- ori r3,r3,VSID_RANDOMIZER@l
-
- mulld r9,r3,r9 /* r9 = ordinal * VSID_RANDOMIZER */
- clrldi r9,r9,28 /* r9 &= VSID_MASK */
- sldi r9,r9,SLB_VSID_SHIFT /* r9 <<= SLB_VSID_SHIFT */
- or r9,r9,r11 /* r9 |= flags */
-
- /* r9 = vsid_data, r10 = esid_data, cr7 = <>KERNELBASE */
-
- /*
- * No need for an isync before or after this slbmte. The exception
- * we enter with and the rfid we exit with are context synchronizing.
- */
- slbmte r9,r10
-
- bgelr cr7 /* we're done for kernel addresses */
-
- /* Update the slb cache */
- lhz r3,PACASLBCACHEPTR(r13) /* offset = paca->slb_cache_ptr */
- cmpldi r3,SLB_CACHE_ENTRIES
- bge 1f
-
- /* still room in the slb cache */
- sldi r11,r3,1 /* r11 = offset * sizeof(u16) */
- rldicl r10,r10,36,28 /* get low 16 bits of the ESID */
- add r11,r11,r13 /* r11 = (u16 *)paca + offset */
- sth r10,PACASLBCACHE(r11) /* paca->slb_cache[offset] = esid */
- addi r3,r3,1 /* offset++ */
- b 2f
-1: /* offset >= SLB_CACHE_ENTRIES */
- li r3,SLB_CACHE_ENTRIES+1
-2:
- sth r3,PACASLBCACHEPTR(r13) /* paca->slb_cache_ptr = offset */
- blr
-
-8: /* invalid EA */
- li r9,0 /* 0 VSID ordinal -> BAD_VSID */
- li r11,SLB_VSID_USER /* flags don't much matter */
- b 7b
+++ /dev/null
-/*
- * arch/s390/kernel/vtime.c
- * Virtual cpu timer based timer functions.
- *
- * S390 version
- * Copyright (C) 2004 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Jan Glauber <jan.glauber@de.ibm.com>
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/types.h>
-#include <linux/timex.h>
-#include <linux/notifier.h>
-
-#include <asm/s390_ext.h>
-#include <asm/timer.h>
-
-#define VTIMER_MAGIC (0x4b87ad6e + 1)
-static ext_int_info_t ext_int_info_timer;
-DEFINE_PER_CPU(struct vtimer_queue, virt_cpu_timer);
-
-void start_cpu_timer(void)
-{
- struct vtimer_queue *vt_list;
-
- vt_list = &per_cpu(virt_cpu_timer, smp_processor_id());
- set_vtimer(vt_list->idle);
-}
-
-void stop_cpu_timer(void)
-{
- __u64 done;
- struct vtimer_queue *vt_list;
-
- vt_list = &per_cpu(virt_cpu_timer, smp_processor_id());
-
- /* nothing to do */
- if (list_empty(&vt_list->list)) {
- vt_list->idle = VTIMER_MAX_SLICE;
- goto fire;
- }
-
- /* store progress */
- asm volatile ("STPT %0" : "=m" (done));
-
- /*
- * If done is negative we do not stop the CPU timer
- * because we will get instantly an interrupt that
- * will start the CPU timer again.
- */
- if (done & 1LL<<63)
- return;
- else
- vt_list->offset += vt_list->to_expire - done;
-
- /* save the actual expire value */
- vt_list->idle = done;
-
- /*
- * We cannot halt the CPU timer, we just write a value that
- * nearly never expires (only after 71 years) and re-write
- * the stored expire value if we continue the timer
- */
- fire:
- set_vtimer(VTIMER_MAX_SLICE);
-}
-
-void set_vtimer(__u64 expires)
-{
- asm volatile ("SPT %0" : : "m" (expires));
-
- /* store expire time for this CPU timer */
- per_cpu(virt_cpu_timer, smp_processor_id()).to_expire = expires;
-}
-
-/*
- * Sorted add to a list. List is linear searched until first bigger
- * element is found.
- */
-void list_add_sorted(struct vtimer_list *timer, struct list_head *head)
-{
- struct vtimer_list *event;
-
- list_for_each_entry(event, head, entry) {
- if (event->expires > timer->expires) {
- list_add_tail(&timer->entry, &event->entry);
- return;
- }
- }
- list_add_tail(&timer->entry, head);
-}
-
-/*
- * Do the callback functions of expired vtimer events.
- * Called from within the interrupt handler.
- */
-static void do_callbacks(struct list_head *cb_list, struct pt_regs *regs)
-{
- struct vtimer_queue *vt_list;
- struct vtimer_list *event, *tmp;
- void (*fn)(unsigned long, struct pt_regs*);
- unsigned long data;
-
- if (list_empty(cb_list))
- return;
-
- vt_list = &per_cpu(virt_cpu_timer, smp_processor_id());
-
- list_for_each_entry_safe(event, tmp, cb_list, entry) {
- fn = event->function;
- data = event->data;
- fn(data, regs);
-
- if (!event->interval)
- /* delete one shot timer */
- list_del_init(&event->entry);
- else {
- /* move interval timer back to list */
- spin_lock(&vt_list->lock);
- list_del_init(&event->entry);
- list_add_sorted(event, &vt_list->list);
- spin_unlock(&vt_list->lock);
- }
- }
-}
-
-/*
- * Handler for the virtual CPU timer.
- */
-static void do_cpu_timer_interrupt(struct pt_regs *regs, __u16 error_code)
-{
- int cpu;
- __u64 next, delta;
- struct vtimer_queue *vt_list;
- struct vtimer_list *event, *tmp;
- struct list_head *ptr;
- /* the callback queue */
- struct list_head cb_list;
-
- INIT_LIST_HEAD(&cb_list);
- cpu = smp_processor_id();
- vt_list = &per_cpu(virt_cpu_timer, cpu);
-
- /* walk timer list, fire all expired events */
- spin_lock(&vt_list->lock);
-
- if (vt_list->to_expire < VTIMER_MAX_SLICE)
- vt_list->offset += vt_list->to_expire;
-
- list_for_each_entry_safe(event, tmp, &vt_list->list, entry) {
- if (event->expires > vt_list->offset)
- /* found first unexpired event, leave */
- break;
-
- /* re-charge interval timer, we have to add the offset */
- if (event->interval)
- event->expires = event->interval + vt_list->offset;
-
- /* move expired timer to the callback queue */
- list_move_tail(&event->entry, &cb_list);
- }
- spin_unlock(&vt_list->lock);
- do_callbacks(&cb_list, regs);
-
- /* next event is first in list */
- spin_lock(&vt_list->lock);
- if (!list_empty(&vt_list->list)) {
- ptr = vt_list->list.next;
- event = list_entry(ptr, struct vtimer_list, entry);
- next = event->expires - vt_list->offset;
-
- /* add the expired time from this interrupt handler
- * and the callback functions
- */
- asm volatile ("STPT %0" : "=m" (delta));
- delta = 0xffffffffffffffffLL - delta + 1;
- vt_list->offset += delta;
- next -= delta;
- } else {
- vt_list->offset = 0;
- next = VTIMER_MAX_SLICE;
- }
- spin_unlock(&vt_list->lock);
- set_vtimer(next);
-}
-
-void init_virt_timer(struct vtimer_list *timer)
-{
- timer->magic = VTIMER_MAGIC;
- timer->function = NULL;
- INIT_LIST_HEAD(&timer->entry);
- spin_lock_init(&timer->lock);
-}
-EXPORT_SYMBOL(init_virt_timer);
-
-static inline int check_vtimer(struct vtimer_list *timer)
-{
- if (timer->magic != VTIMER_MAGIC)
- return -EINVAL;
- return 0;
-}
-
-static inline int vtimer_pending(struct vtimer_list *timer)
-{
- return (!list_empty(&timer->entry));
-}
-
-/*
- * this function should only run on the specified CPU
- */
-static void internal_add_vtimer(struct vtimer_list *timer)
-{
- unsigned long flags;
- __u64 done;
- struct vtimer_list *event;
- struct vtimer_queue *vt_list;
-
- vt_list = &per_cpu(virt_cpu_timer, timer->cpu);
- spin_lock_irqsave(&vt_list->lock, flags);
-
- if (timer->cpu != smp_processor_id())
- printk("internal_add_vtimer: BUG, running on wrong CPU");
-
- /* if list is empty we only have to set the timer */
- if (list_empty(&vt_list->list)) {
- /* reset the offset, this may happen if the last timer was
- * just deleted by mod_virt_timer and the interrupt
- * didn't happen until here
- */
- vt_list->offset = 0;
- goto fire;
- }
-
- /* save progress */
- asm volatile ("STPT %0" : "=m" (done));
-
- /* calculate completed work */
- done = vt_list->to_expire - done + vt_list->offset;
- vt_list->offset = 0;
-
- list_for_each_entry(event, &vt_list->list, entry)
- event->expires -= done;
-
- fire:
- list_add_sorted(timer, &vt_list->list);
-
- /* get first element, which is the next vtimer slice */
- event = list_entry(vt_list->list.next, struct vtimer_list, entry);
-
- set_vtimer(event->expires);
- spin_unlock_irqrestore(&vt_list->lock, flags);
- /* release CPU aquired in prepare_vtimer or mod_virt_timer() */
- put_cpu();
-}
-
-static inline int prepare_vtimer(struct vtimer_list *timer)
-{
- if (check_vtimer(timer) || !timer->function) {
- printk("add_virt_timer: uninitialized timer\n");
- return -EINVAL;
- }
-
- if (!timer->expires || timer->expires > VTIMER_MAX_SLICE) {
- printk("add_virt_timer: invalid timer expire value!\n");
- return -EINVAL;
- }
-
- if (vtimer_pending(timer)) {
- printk("add_virt_timer: timer pending\n");
- return -EBUSY;
- }
-
- timer->cpu = get_cpu();
- return 0;
-}
-
-/*
- * add_virt_timer - add an oneshot virtual CPU timer
- */
-void add_virt_timer(void *new)
-{
- struct vtimer_list *timer;
-
- timer = (struct vtimer_list *)new;
-
- if (prepare_vtimer(timer) < 0)
- return;
-
- timer->interval = 0;
- internal_add_vtimer(timer);
-}
-EXPORT_SYMBOL(add_virt_timer);
-
-/*
- * add_virt_timer_int - add an interval virtual CPU timer
- */
-void add_virt_timer_periodic(void *new)
-{
- struct vtimer_list *timer;
-
- timer = (struct vtimer_list *)new;
-
- if (prepare_vtimer(timer) < 0)
- return;
-
- timer->interval = timer->expires;
- internal_add_vtimer(timer);
-}
-EXPORT_SYMBOL(add_virt_timer_periodic);
-
-/*
- * If we change a pending timer the function must be called on the CPU
- * where the timer is running on, e.g. by smp_call_function_on()
- *
- * The original mod_timer adds the timer if it is not pending. For compatibility
- * we do the same. The timer will be added on the current CPU as a oneshot timer.
- *
- * returns whether it has modified a pending timer (1) or not (0)
- */
-int mod_virt_timer(struct vtimer_list *timer, __u64 expires)
-{
- struct vtimer_queue *vt_list;
- unsigned long flags;
- int cpu;
-
- if (check_vtimer(timer) || !timer->function) {
- printk("mod_virt_timer: uninitialized timer\n");
- return -EINVAL;
- }
-
- if (!expires || expires > VTIMER_MAX_SLICE) {
- printk("mod_virt_timer: invalid expire range\n");
- return -EINVAL;
- }
-
- /*
- * This is a common optimization triggered by the
- * networking code - if the timer is re-modified
- * to be the same thing then just return:
- */
- if (timer->expires == expires && vtimer_pending(timer))
- return 1;
-
- cpu = get_cpu();
- vt_list = &per_cpu(virt_cpu_timer, cpu);
-
- /* disable interrupts before test if timer is pending */
- spin_lock_irqsave(&vt_list->lock, flags);
-
- /* if timer isn't pending add it on the current CPU */
- if (!vtimer_pending(timer)) {
- spin_unlock_irqrestore(&vt_list->lock, flags);
- /* we do not activate an interval timer with mod_virt_timer */
- timer->interval = 0;
- timer->expires = expires;
- timer->cpu = cpu;
- internal_add_vtimer(timer);
- return 0;
- }
-
- /* check if we run on the right CPU */
- if (timer->cpu != cpu) {
- printk("mod_virt_timer: running on wrong CPU, check your code\n");
- spin_unlock_irqrestore(&vt_list->lock, flags);
- put_cpu();
- return -EINVAL;
- }
-
- list_del_init(&timer->entry);
- timer->expires = expires;
-
- /* also change the interval if we have an interval timer */
- if (timer->interval)
- timer->interval = expires;
-
- /* the timer can't expire anymore so we can release the lock */
- spin_unlock_irqrestore(&vt_list->lock, flags);
- internal_add_vtimer(timer);
- return 1;
-}
-EXPORT_SYMBOL(mod_virt_timer);
-
-/*
- * delete a virtual timer
- *
- * returns whether the deleted timer was pending (1) or not (0)
- */
-int del_virt_timer(struct vtimer_list *timer)
-{
- unsigned long flags;
- struct vtimer_queue *vt_list;
-
- if (check_vtimer(timer)) {
- printk("del_virt_timer: timer not initialized\n");
- return -EINVAL;
- }
-
- /* check if timer is pending */
- if (!vtimer_pending(timer))
- return 0;
-
- vt_list = &per_cpu(virt_cpu_timer, timer->cpu);
- spin_lock_irqsave(&vt_list->lock, flags);
-
- /* we don't interrupt a running timer, just let it expire! */
- list_del_init(&timer->entry);
-
- /* last timer removed */
- if (list_empty(&vt_list->list)) {
- vt_list->to_expire = 0;
- vt_list->offset = 0;
- }
-
- spin_unlock_irqrestore(&vt_list->lock, flags);
- return 1;
-}
-EXPORT_SYMBOL(del_virt_timer);
-
-/*
- * Start the virtual CPU timer on the current CPU.
- */
-void init_cpu_vtimer(void)
-{
- struct vtimer_queue *vt_list;
- unsigned long cr0;
- __u64 timer;
-
- /* kick the virtual timer */
- timer = VTIMER_MAX_SLICE;
- asm volatile ("SPT %0" : : "m" (timer));
- __ctl_store(cr0, 0, 0);
- cr0 |= 0x400;
- __ctl_load(cr0, 0, 0);
-
- vt_list = &per_cpu(virt_cpu_timer, smp_processor_id());
- INIT_LIST_HEAD(&vt_list->list);
- spin_lock_init(&vt_list->lock);
- vt_list->to_expire = 0;
- vt_list->offset = 0;
- vt_list->idle = 0;
-
-}
-
-static int vtimer_idle_notify(struct notifier_block *self,
- unsigned long action, void *hcpu)
-{
- switch (action) {
- case CPU_IDLE:
- stop_cpu_timer();
- break;
- case CPU_NOT_IDLE:
- start_cpu_timer();
- break;
- }
- return NOTIFY_OK;
-}
-
-static struct notifier_block vtimer_idle_nb = {
- .notifier_call = vtimer_idle_notify,
-};
-
-void __init vtime_init(void)
-{
- /* request the cpu timer external interrupt */
- if (register_early_external_interrupt(0x1005, do_cpu_timer_interrupt,
- &ext_int_info_timer) != 0)
- panic("Couldn't request external interrupt 0x1005");
-
- if (register_idle_notifier(&vtimer_idle_nb))
- panic("Couldn't register idle notifier");
-
- init_cpu_vtimer();
-}
-
+++ /dev/null
-/*
- * arch/s390/lib/memset.S
- * S390 fast memset routine
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
-/*
- * R2 = address to memory area
- * R3 = byte to fill memory with
- * R4 = number of bytes to fill
- */
- .globl memset
-memset:
- LTR 4,4
- JZ memset_end
- LR 0,2 # save pointer to memory area
- LR 1,3 # move pad byte to R1
- LR 3,4
- SR 4,4 # no source for MVCLE, only a pad byte
- SR 5,5
- MVCLE 2,4,0(1) # thats it, MVCLE is your friend
- JO .-4
- LR 2,0 # return pointer to mem.
-memset_end:
- BR 14
-
-
+++ /dev/null
-/*
- * arch/s390/lib/memset.S
- * S390 fast memset routine
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
-/*
- * R2 = address to memory area
- * R3 = byte to fill memory with
- * R4 = number of bytes to fill
- */
- .globl memset
-memset:
- LTGR 4,4
- JZ memset_end
- LGR 0,2 # save pointer to memory area
- LGR 1,3 # move pad byte to R1
- LGR 3,4
- SGR 4,4 # no source for MVCLE, only a pad byte
- SGR 5,5
- MVCLE 2,4,0(1) # thats it, MVCLE is your friend
- JO .-4
- LGR 2,0 # return pointer to mem.
-memset_end:
- BR 14
-
-
+++ /dev/null
-/*
- * arch/s390/lib/strcmp.S
- * S390 strcmp routine
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
-/*
- * R2 = address of compare string
- * R3 = address of test string
- */
- .globl strcmp
-strcmp:
- SR 0,0
- SR 1,1
- CLST 2,3
- JO .-4
- JE strcmp_equal
- IC 0,0(3)
- IC 1,0(2)
- SR 1,0
-strcmp_equal:
- LR 2,1
- BR 14
-
+++ /dev/null
-/*
- * arch/s390/lib/strcmp.S
- * S390 strcmp routine
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
-/*
- * R2 = address of compare string
- * R3 = address of test string
- */
- .globl strcmp
-strcmp:
- SGR 0,0
- SGR 1,1
- CLST 2,3
- JO .-4
- JE strcmp_equal
- IC 0,0(3)
- IC 1,0(2)
- SGR 1,0
-strcmp_equal:
- LGR 2,1
- BR 14
-
+++ /dev/null
-/*
- * arch/s390/kernel/strcpy.S
- * S390 strcpy routine
- *
- * S390 version
- * Copyright (C) 2004 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
-/*
- * R2 = address of destination
- * R3 = address of source string
- */
- .globl strcpy
-strcpy:
- sr %r0,%r0
-0: mvst %r2,%r3
- jo 0b
- br %r14
-
+++ /dev/null
-/*
- * arch/s390/kernel/strcpy.S
- * S390 strcpy routine
- *
- * S390 version
- * Copyright (C) 2004 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
-/*
- * R2 = address of destination
- * R3 = address of source string
- */
- .globl strcpy
-strcpy:
- sgr %r0,%r0
-0: mvst %r2,%r3
- jo 0b
- br %r14
-
+++ /dev/null
-/*
- * arch/s390/kernel/strncpy.S
- * S390 strncpy routine
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
-/*
- * R2 = address of destination
- * R3 = address of source string
- * R4 = max number of bytes to copy
- */
- .globl strncpy
-strncpy:
- LR 1,2 # don't touch address in R2
- LTR 4,4
- JZ strncpy_exit # 0 bytes -> nothing to do
- SR 0,0
-strncpy_loop:
- ICM 0,1,0(3) # ICM sets the cc, IC does not
- LA 3,1(3)
- STC 0,0(1)
- LA 1,1(1)
- JZ strncpy_pad # ICM inserted a 0x00
- BRCT 4,strncpy_loop # R4 -= 1, jump to strncpy_loop if > 0
-strncpy_exit:
- BR 14
-strncpy_clear:
- STC 0,0(1)
- LA 1,1(1)
-strncpy_pad:
- BRCT 4,strncpy_clear
- BR 14
+++ /dev/null
-/*
- * arch/s390/kernel/strncpy.S
- * S390 strncpy routine
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
-/*
- * R2 = address of destination
- * R3 = address of source string
- * R4 = max number of bytes to copy
- */
- .globl strncpy
-strncpy:
- LGR 1,2 # don't touch address in R2
- LTR 4,4
- JZ strncpy_exit # 0 bytes -> nothing to do
- SGR 0,0
-strncpy_loop:
- ICM 0,1,0(3) # ICM sets the cc, IC does not
- LA 3,1(3)
- STC 0,0(1)
- LA 1,1(1)
- JZ strncpy_pad # ICM inserted a 0x00
- BRCTG 4,strncpy_loop # R4 -= 1, jump to strncpy_loop if > 0
-strncpy_exit:
- BR 14
-strncpy_clear:
- STC 0,0(1)
- LA 1,1(1)
-strncpy_pad:
- BRCTG 4,strncpy_clear
- BR 14
+++ /dev/null
-#
-# Makefile for the HS7751RVoIP specific parts of the kernel
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-obj-y := mach.o setup.o io.o irq.o led.o
-
-obj-$(CONFIG_PCI) += pci.o
-
+++ /dev/null
-/*
- * linux/arch/sh/kernel/io_hs7751rvoip.c
- *
- * Copyright (C) 2001 Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routine for Renesas Technology sales HS7751RVoIP
- *
- * Initial version only to support LAN access; some
- * placeholder code from io_hs7751rvoip.c left in with the
- * expectation of later SuperIO and PCMCIA access.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <asm/io.h>
-#include <asm/hs7751rvoip/hs7751rvoip.h>
-#include <asm/addrspace.h>
-
-#include <linux/module.h>
-#include <linux/pci.h>
-#include "../../../drivers/pci/pci-sh7751.h"
-
-extern void *area5_io8_base; /* Area 5 8bit I/O Base address */
-extern void *area6_io8_base; /* Area 6 8bit I/O Base address */
-extern void *area5_io16_base; /* Area 5 16bit I/O Base address */
-extern void *area6_io16_base; /* Area 6 16bit I/O Base address */
-
-/*
- * The 7751R HS7751RVoIP uses the built-in PCI controller (PCIC)
- * of the 7751R processor, and has a SuperIO accessible via the PCI.
- * The board also includes a PCMCIA controller on its memory bus,
- * like the other Solution Engine boards.
- */
-
-#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR)
-#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR)
-#define PCI_IO_AREA SH7751_PCI_IO_BASE
-#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE
-
-#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK))
-
-#if defined(CONFIG_HS7751RVOIP_CODEC)
-#define CODEC_IO_BASE 0x1000
-#endif
-
-#define maybebadio(name,port) \
- printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \
- #name, (port), (__u32) __builtin_return_address(0))
-
-static inline void delay(void)
-{
- ctrl_inw(0xa0000000);
-}
-
-static inline unsigned long port2adr(unsigned int port)
-{
- if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
- if (port == 0x3f6)
- return ((unsigned long)area5_io16_base + 0x0c);
- else
- return ((unsigned long)area5_io16_base + 0x800 + ((port-0x1f0) << 1));
- else
- maybebadio(port2adr, (unsigned long)port);
- return port;
-}
-
-/* The 7751R HS7751RVoIP seems to have everything hooked */
-/* up pretty normally (nothing on high-bytes only...) so this */
-/* shouldn't be needed */
-static inline int shifted_port(unsigned long port)
-{
- /* For IDE registers, value is not shifted */
- if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
- return 0;
- else
- return 1;
-}
-
-#if defined(CONFIG_HS7751RVOIP_CODEC)
-static inline int
-codec_port(unsigned long port)
-{
- if (CODEC_IO_BASE <= port && port < (CODEC_IO_BASE+0x20))
- return 1;
- else
- return 0;
-}
-#endif
-
-/* In case someone configures the kernel w/o PCI support: in that */
-/* scenario, don't ever bother to check for PCI-window addresses */
-
-/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */
-#if defined(CONFIG_PCI)
-#define CHECK_SH7751_PCIIO(port) \
- ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE)))
-#else
-#define CHECK_SH7751_PCIIO(port) (0)
-#endif
-
-/*
- * General outline: remap really low stuff [eventually] to SuperIO,
- * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
- * is mapped through the PCI IO window. Stuff with high bits (PXSEG)
- * should be way beyond the window, and is used w/o translation for
- * compatibility.
- */
-unsigned char hs7751rvoip_inb(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned char *)port;
-#if defined(CONFIG_HS7751RVOIP_CODEC)
- else if (codec_port(port))
- return *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
-#endif
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- return *(volatile unsigned char *)PCI_IOMAP(port);
- else
- return (*(volatile unsigned short *)port2adr(port) & 0xff);
-}
-
-unsigned char hs7751rvoip_inb_p(unsigned long port)
-{
- unsigned char v;
-
- if (PXSEG(port))
- v = *(volatile unsigned char *)port;
-#if defined(CONFIG_HS7751RVOIP_CODEC)
- else if (codec_port(port))
- v = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
-#endif
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- v = *(volatile unsigned char *)PCI_IOMAP(port);
- else
- v = (*(volatile unsigned short *)port2adr(port) & 0xff);
- delay();
- return v;
-}
-
-unsigned short hs7751rvoip_inw(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned short *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- return *(volatile unsigned short *)PCI_IOMAP(port);
- else
- maybebadio(inw, port);
- return 0;
-}
-
-unsigned int hs7751rvoip_inl(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned long *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- return *(volatile unsigned long *)PCI_IOMAP(port);
- else
- maybebadio(inl, port);
- return 0;
-}
-
-void hs7751rvoip_outb(unsigned char value, unsigned long port)
-{
-
- if (PXSEG(port))
- *(volatile unsigned char *)port = value;
-#if defined(CONFIG_HS7751RVOIP_CIDEC)
- else if (codec_port(port))
- *(volatile unsigned cjar *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value;
-#endif
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- *(unsigned char *)PCI_IOMAP(port) = value;
- else
- *(volatile unsigned short *)port2adr(port) = value;
-}
-
-void hs7751rvoip_outb_p(unsigned char value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned char *)port = value;
-#if defined(CONFIG_HS7751RVOIP_CIDEC)
- else if (codec_port(port))
- *(volatile unsigned cjar *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value;
-#endif
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- *(unsigned char *)PCI_IOMAP(port) = value;
- else
- *(volatile unsigned short *)port2adr(port) = value;
- delay();
-}
-
-void hs7751rvoip_outw(unsigned short value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned short *)port = value;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- *(unsigned short *)PCI_IOMAP(port) = value;
- else
- maybebadio(outw, port);
-}
-
-void hs7751rvoip_outl(unsigned int value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned long *)port = value;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- *((unsigned long *)PCI_IOMAP(port)) = value;
- else
- maybebadio(outl, port);
-}
-
-void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count)
-{
- if (PXSEG(port))
- while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)port;
-#if defined(CONFIG_HS7751RVOIP_CODEC)
- else if (codec_port(port))
- while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
-#endif
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
- volatile __u8 *bp = (__u8 *)PCI_IOMAP(port);
-
- while (count--) *((volatile unsigned char *) addr)++ = *bp;
- } else {
- volatile __u16 *p = (volatile unsigned short *)port2adr(port);
-
- while (count--) *((unsigned char *) addr)++ = *p & 0xff;
- }
-}
-
-void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count)
-{
- volatile __u16 *p;
-
- if (PXSEG(port))
- p = (volatile unsigned short *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- p = (volatile unsigned short *)PCI_IOMAP(port);
- else
- p = (volatile unsigned short *)port2adr(port);
- while (count--) *((__u16 *) addr)++ = *p;
-}
-
-void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count)
-{
- if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
- volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
-
- while (count--) *((__u32 *) addr)++ = *p;
- } else
- maybebadio(insl, port);
-}
-
-void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count)
-{
- if (PXSEG(port))
- while (count--) *(volatile unsigned char *)port = *((unsigned char *) addr)++;
-#if defined(CONFIG_HS7751RVOIP_CODEC)
- else if (codec_port(port))
- while (count--) *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = *((unsigned char *) addr)++;
-#endif
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
- volatile __u8 *bp = (__u8 *)PCI_IOMAP(port);
-
- while (count--) *bp = *((volatile unsigned char *) addr)++;
- } else {
- volatile __u16 *p = (volatile unsigned short *)port2adr(port);
-
- while (count--) *p = *((unsigned char *) addr)++;
- }
-}
-
-void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count)
-{
- volatile __u16 *p;
-
- if (PXSEG(port))
- p = (volatile unsigned short *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- p = (volatile unsigned short *)PCI_IOMAP(port);
- else
- p = (volatile unsigned short *)port2adr(port);
- while (count--) *p = *((__u16 *) addr)++;
-}
-
-void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count)
-{
- if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
- volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
-
- while (count--) *p = *((__u32 *) addr)++;
- } else
- maybebadio(outsl, port);
-}
-
-void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size)
-{
- if (offset >= 0xfd000000)
- return (void *)offset;
- else
- return (void *)P2SEGADDR(offset);
-}
-EXPORT_SYMBOL(hs7751rvoip_ioremap);
-
-unsigned long hs7751rvoip_isa_port2addr(unsigned long offset)
-{
- return port2adr(offset);
-}
+++ /dev/null
-/*
- * linux/arch/sh/boards/renesas/hs7751rvoip/irq.c
- *
- * Copyright (C) 2000 Kazumoto Kojima
- *
- * Renesas Technology Sales HS7751RVoIP Support.
- *
- * Modified for HS7751RVoIP by
- * Atom Create Engineering Co., Ltd. 2002.
- * Lineo uSolutions, Inc. 2003.
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/hs7751rvoip/hs7751rvoip.h>
-
-static int mask_pos[] = {8, 9, 10, 11, 12, 13, 0, 1, 2, 3, 4, 5, 6, 7};
-
-static void enable_hs7751rvoip_irq(unsigned int irq);
-static void disable_hs7751rvoip_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_hs7751rvoip_irq disable_hs7751rvoip_irq
-
-static void ack_hs7751rvoip_irq(unsigned int irq);
-static void end_hs7751rvoip_irq(unsigned int irq);
-
-static unsigned int startup_hs7751rvoip_irq(unsigned int irq)
-{
- enable_hs7751rvoip_irq(irq);
- return 0; /* never anything pending */
-}
-
-static void disable_hs7751rvoip_irq(unsigned int irq)
-{
- unsigned long flags;
- unsigned short val;
- unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]);
-
- /* Set the priority in IPR to 0 */
- local_irq_save(flags);
- val = ctrl_inw(IRLCNTR3);
- val &= mask;
- ctrl_outw(val, IRLCNTR3);
- local_irq_restore(flags);
-}
-
-static void enable_hs7751rvoip_irq(unsigned int irq)
-{
- unsigned long flags;
- unsigned short val;
- unsigned short value = (0x0001 << mask_pos[irq]);
-
- /* Set priority in IPR back to original value */
- local_irq_save(flags);
- val = ctrl_inw(IRLCNTR3);
- val |= value;
- ctrl_outw(val, IRLCNTR3);
- local_irq_restore(flags);
-}
-
-static void ack_hs7751rvoip_irq(unsigned int irq)
-{
- disable_hs7751rvoip_irq(irq);
-}
-
-static void end_hs7751rvoip_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_hs7751rvoip_irq(irq);
-}
-
-static struct hw_interrupt_type hs7751rvoip_irq_type = {
- "HS7751RVoIP IRQ",
- startup_hs7751rvoip_irq,
- shutdown_hs7751rvoip_irq,
- enable_hs7751rvoip_irq,
- disable_hs7751rvoip_irq,
- ack_hs7751rvoip_irq,
- end_hs7751rvoip_irq,
-};
-
-static void make_hs7751rvoip_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_desc[irq].handler = &hs7751rvoip_irq_type;
- disable_hs7751rvoip_irq(irq);
-}
-
-/*
- * Initialize IRQ setting
- */
-void __init init_hs7751rvoip_IRQ(void)
-{
- int i;
-
- /* IRL0=ON HOOK1
- * IRL1=OFF HOOK1
- * IRL2=ON HOOK2
- * IRL3=OFF HOOK2
- * IRL4=Ringing Detection
- * IRL5=CODEC
- * IRL6=Ethernet
- * IRL7=Ethernet Hub
- * IRL8=USB Communication
- * IRL9=USB Connection
- * IRL10=USB DMA
- * IRL11=CF Card
- * IRL12=PCMCIA
- * IRL13=PCI Slot
- */
- ctrl_outw(0x9876, IRLCNTR1);
- ctrl_outw(0xdcba, IRLCNTR2);
- ctrl_outw(0x0050, IRLCNTR4);
- ctrl_outw(0x4321, IRLCNTR5);
-
- for (i=0; i<14; i++)
- make_hs7751rvoip_irq(i);
-}
+++ /dev/null
-/*
- * linux/arch/sh/kernel/setup_hs7751rvoip.c
- *
- * Copyright (C) 2000 Kazumoto Kojima
- *
- * Renesas Technology Sales HS7751RVoIP Support.
- *
- * Modified for HS7751RVoIP by
- * Atom Create Engineering Co., Ltd. 2002.
- * Lineo uSolutions, Inc. 2003.
- */
-
-#include <linux/config.h>
-#include <asm/io.h>
-#include <asm/hs7751rvoip/hs7751rvoip.h>
-
-extern unsigned int debug_counter;
-
-void debug_led_disp(void)
-{
- unsigned short value;
-
- value = (unsigned char)debug_counter++;
- ctrl_outb((0xf0|value), PA_OUTPORTR);
- if (value == 0x0f)
- debug_counter = 0;
-}
+++ /dev/null
-/*
- * linux/arch/sh/kernel/mach_hs7751rvoip.c
- *
- * Minor tweak of mach_se.c file to reference hs7751rvoip-specific items.
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Machine vector for the Renesas Technology sales HS7751RVoIP
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-
-#include <asm/machvec.h>
-#include <asm/rtc.h>
-#include <asm/irq.h>
-#include <asm/hs7751rvoip/io.h>
-
-extern void init_hs7751rvoip_IRQ(void);
-extern void *hs7751rvoip_ioremap(unsigned long, unsigned long);
-
-/*
- * The Machine Vector
- */
-
-struct sh_machine_vector mv_hs7751rvoip __initmv = {
- .mv_nr_irqs = 72,
-
- .mv_inb = hs7751rvoip_inb,
- .mv_inw = hs7751rvoip_inw,
- .mv_inl = hs7751rvoip_inl,
- .mv_outb = hs7751rvoip_outb,
- .mv_outw = hs7751rvoip_outw,
- .mv_outl = hs7751rvoip_outl,
-
- .mv_inb_p = hs7751rvoip_inb_p,
- .mv_inw_p = hs7751rvoip_inw,
- .mv_inl_p = hs7751rvoip_inl,
- .mv_outb_p = hs7751rvoip_outb_p,
- .mv_outw_p = hs7751rvoip_outw,
- .mv_outl_p = hs7751rvoip_outl,
-
- .mv_insb = hs7751rvoip_insb,
- .mv_insw = hs7751rvoip_insw,
- .mv_insl = hs7751rvoip_insl,
- .mv_outsb = hs7751rvoip_outsb,
- .mv_outsw = hs7751rvoip_outsw,
- .mv_outsl = hs7751rvoip_outsl,
-
- .mv_ioremap = hs7751rvoip_ioremap,
- .mv_isa_port2addr = hs7751rvoip_isa_port2addr,
- .mv_init_irq = init_hs7751rvoip_IRQ,
-};
-ALIAS_MV(hs7751rvoip)
+++ /dev/null
-/*
- * linux/arch/sh/kernel/pci-hs7751rvoip.c
- *
- * Author: Ian DaSilva (idasilva@mvista.com)
- *
- * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * PCI initialization for the Renesas SH7751R HS7751RVoIP board
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/module.h>
-
-#include <asm/io.h>
-#include "../../../drivers/pci/pci-sh7751.h"
-#include <asm/hs7751rvoip/hs7751rvoip.h>
-
-#define PCIMCR_MRSET_OFF 0xBFFFFFFF
-#define PCIMCR_RFSH_OFF 0xFFFFFFFB
-
-/*
- * Only long word accesses of the PCIC's internal local registers and the
- * configuration registers from the CPU is supported.
- */
-#define PCIC_WRITE(x,v) writel((v), PCI_REG(x))
-#define PCIC_READ(x) readl(PCI_REG(x))
-
-/*
- * Description: This function sets up and initializes the pcic, sets
- * up the BARS, maps the DRAM into the address space etc, etc.
- */
-int __init pcibios_init_platform(void)
-{
- unsigned long bcr1, wcr1, wcr2, wcr3, mcr;
- unsigned short bcr2, bcr3;
-
- /*
- * Initialize the slave bus controller on the pcic. The values used
- * here should not be hardcoded, but they should be taken from the bsc
- * on the processor, to make this function as generic as possible.
- * (i.e. Another sbc may usr different SDRAM timing settings -- in order
- * for the pcic to work, its settings need to be exactly the same.)
- */
- bcr1 = (*(volatile unsigned long *)(SH7751_BCR1));
- bcr2 = (*(volatile unsigned short *)(SH7751_BCR2));
- bcr3 = (*(volatile unsigned short *)(SH7751_BCR3));
- wcr1 = (*(volatile unsigned long *)(SH7751_WCR1));
- wcr2 = (*(volatile unsigned long *)(SH7751_WCR2));
- wcr3 = (*(volatile unsigned long *)(SH7751_WCR3));
- mcr = (*(volatile unsigned long *)(SH7751_MCR));
-
- bcr1 = bcr1 | 0x00080000; /* Enable Bit 19, BREQEN */
- (*(volatile unsigned long *)(SH7751_BCR1)) = bcr1;
-
- bcr1 = bcr1 | 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */
- PCIC_WRITE(SH7751_PCIBCR1, bcr1); /* PCIC BCR1 */
- PCIC_WRITE(SH7751_PCIBCR2, bcr2); /* PCIC BCR2 */
- PCIC_WRITE(SH7751_PCIBCR3, bcr3); /* PCIC BCR3 */
- PCIC_WRITE(SH7751_PCIWCR1, wcr1); /* PCIC WCR1 */
- PCIC_WRITE(SH7751_PCIWCR2, wcr2); /* PCIC WCR2 */
- PCIC_WRITE(SH7751_PCIWCR3, wcr3); /* PCIC WCR3 */
- mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
- PCIC_WRITE(SH7751_PCIMCR, mcr); /* PCIC MCR */
-
- /* Enable all interrupts, so we know what to fix */
- PCIC_WRITE(SH7751_PCIINTM, 0x0000c3ff);
- PCIC_WRITE(SH7751_PCIAINTM, 0x0000380f);
-
- /* Set up standard PCI config registers */
- PCIC_WRITE(SH7751_PCICONF1, 0xFB900047); /* Bus Master, Mem & I/O access */
- PCIC_WRITE(SH7751_PCICONF2, 0x00000000); /* PCI Class code & Revision ID */
- PCIC_WRITE(SH7751_PCICONF4, 0xab000001); /* PCI I/O address (local regs) */
- PCIC_WRITE(SH7751_PCICONF5, 0x0c000000); /* PCI MEM address (local RAM) */
- PCIC_WRITE(SH7751_PCICONF6, 0xd0000000); /* PCI MEM address (unused) */
- PCIC_WRITE(SH7751_PCICONF11, 0x35051054); /* PCI Subsystem ID & Vendor ID */
- PCIC_WRITE(SH7751_PCILSR0, 0x03f00000); /* MEM (full 64M exposed) */
- PCIC_WRITE(SH7751_PCILSR1, 0x00000000); /* MEM (unused) */
- PCIC_WRITE(SH7751_PCILAR0, 0x0c000000); /* MEM (direct map from PCI) */
- PCIC_WRITE(SH7751_PCILAR1, 0x00000000); /* MEM (unused) */
-
- /* Now turn it on... */
- PCIC_WRITE(SH7751_PCICR, 0xa5000001);
-
- /*
- * Set PCIMBR and PCIIOBR here, assuming a single window
- * (16M MEM, 256K IO) is enough. If a larger space is
- * needed, the readx/writex and inx/outx functions will
- * have to do more (e.g. setting registers for each call).
- */
-
- /*
- * Set the MBR so PCI address is one-to-one with window,
- * meaning all calls go straight through... use ifdef to
- * catch erroneous assumption.
- */
- BUG_ON(PCIBIOS_MIN_MEM != SH7751_PCI_MEMORY_BASE);
-
- PCIC_WRITE(SH7751_PCIMBR, PCIBIOS_MIN_MEM);
-
- /* Set IOBR for window containing area specified in pci.h */
- PCIC_WRITE(SH7751_PCIIOBR, (PCIBIOS_MIN_IO & SH7751_PCIIOBR_MASK));
-
- /* All done, may as well say so... */
- printk("SH7751R PCI: Finished initialization of the PCI controller\n");
-
- return 1;
-}
-
-int __init pcibios_map_platform_irq(u8 slot, u8 pin)
-{
- switch (slot) {
- case 0: return IRQ_PCISLOT; /* PCI Extend slot */
- case 1: return IRQ_PCMCIA; /* PCI Cardbus Bridge */
- case 2: return IRQ_PCIETH; /* Realtek Ethernet controller */
- case 3: return IRQ_PCIHUB; /* Realtek Ethernet Hub controller */
- default:
- printk("PCI: Bad IRQ mapping request for slot %d\n", slot);
- return -1;
- }
-}
-
-static struct resource sh7751_io_resource = {
- .name = "SH7751_IO",
- .start = 0x4000,
- .end = 0x4000 + SH7751_PCI_IO_SIZE - 1,
- .flags = IORESOURCE_IO
-};
-
-static struct resource sh7751_mem_resource = {
- .name = "SH7751_mem",
- .start = SH7751_PCI_MEMORY_BASE,
- .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
- .flags = IORESOURCE_MEM
-};
-
-extern struct pci_ops sh7751_pci_ops;
-
-struct pci_channel board_pci_channels[] = {
- { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
- { NULL, NULL, NULL, 0, 0 },
-};
-EXPORT_SYMBOL(board_pci_channels);
+++ /dev/null
-/*
- * linux/arch/sh/kernel/setup_hs7751rvoip.c
- *
- * Copyright (C) 2000 Kazumoto Kojima
- *
- * Renesas Technology Sales HS7751RVoIP Support.
- *
- * Modified for HS7751RVoIP by
- * Atom Create Engineering Co., Ltd. 2002.
- * Lineo uSolutions, Inc. 2003.
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#include <asm/io.h>
-#include <asm/hs7751rvoip/hs7751rvoip.h>
-
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-
-/* defined in mm/ioremap.c */
-extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags);
-
-unsigned int debug_counter;
-
-const char *get_system_type(void)
-{
- return "HS7751RVoIP";
-}
-
-/*
- * Initialize the board
- */
-void __init platform_setup(void)
-{
- printk(KERN_INFO "Renesas Technology Sales HS7751RVoIP-2 support.\n");
- ctrl_outb(0xf0, PA_OUTPORTR);
- debug_counter = 0;
-}
-
-void *area5_io8_base;
-void *area6_io8_base;
-void *area5_io16_base;
-void *area6_io16_base;
-
-int __init cf_init(void)
-{
- pgprot_t prot;
- unsigned long paddrbase, psize;
-
- /* open I/O area window */
- paddrbase = virt_to_phys((void *)(PA_AREA5_IO+0x00000800));
- psize = PAGE_SIZE;
- prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_COM16);
- area5_io16_base = p3_ioremap(paddrbase, psize, prot.pgprot);
- if (!area5_io16_base) {
- printk("allocate_cf_area : can't open CF I/O window!\n");
- return -ENOMEM;
- }
-
- /* XXX : do we need attribute and common-memory area also? */
-
- paddrbase = virt_to_phys((void *)PA_AREA6_IO);
- psize = PAGE_SIZE;
-#if defined(CONFIG_HS7751RVOIP_CODEC)
- prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_COM8);
-#else
- prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO8);
-#endif
- area6_io8_base = p3_ioremap(paddrbase, psize, prot.pgprot);
- if (!area6_io8_base) {
- printk("allocate_cf_area : can't open CODEC I/O 8bit window!\n");
- return -ENOMEM;
- }
- prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16);
- area6_io16_base = p3_ioremap(paddrbase, psize, prot.pgprot);
- if (!area6_io16_base) {
- printk("allocate_cf_area : can't open CODEC I/O 16bit window!\n");
- return -ENOMEM;
- }
-
- return 0;
-}
-
-__initcall (cf_init);
+++ /dev/null
-#
-# Makefile for the RTS7751R2D specific parts of the kernel
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-obj-y := mach.o setup.o io.o irq.o led.o
-
+++ /dev/null
-/*
- * linux/arch/sh/kernel/io_rts7751r2d.c
- *
- * Copyright (C) 2001 Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routine for Renesas Technology sales RTS7751R2D.
- *
- * Initial version only to support LAN access; some
- * placeholder code from io_rts7751r2d.c left in with the
- * expectation of later SuperIO and PCMCIA access.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <asm/io.h>
-#include <asm/rts7751r2d/rts7751r2d.h>
-#include <asm/addrspace.h>
-
-#include <linux/module.h>
-#include <linux/pci.h>
-#include "../../../drivers/pci/pci-sh7751.h"
-
-/*
- * The 7751R RTS7751R2D uses the built-in PCI controller (PCIC)
- * of the 7751R processor, and has a SuperIO accessible via the PCI.
- * The board also includes a PCMCIA controller on its memory bus,
- * like the other Solution Engine boards.
- */
-
-#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR)
-#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR)
-#define PCI_IO_AREA SH7751_PCI_IO_BASE
-#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE
-
-#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK))
-
-#define maybebadio(name,port) \
- printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \
- #name, (port), (__u32) __builtin_return_address(0))
-
-static inline void delay(void)
-{
- ctrl_inw(0xa0000000);
-}
-
-static inline unsigned long port2adr(unsigned int port)
-{
- if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
- if (port == 0x3f6)
- return (PA_AREA5_IO + 0x80c);
- else
- return (PA_AREA5_IO + 0x1000 + ((port-0x1f0) << 1));
- else
- maybebadio(port2adr, (unsigned long)port);
-
- return port;
-}
-
-static inline unsigned long port88796l(unsigned int port, int flag)
-{
- unsigned long addr;
-
- if (flag)
- addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1);
- else
- addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1) + 0x1000;
-
- return addr;
-}
-
-/* The 7751R RTS7751R2D seems to have everything hooked */
-/* up pretty normally (nothing on high-bytes only...) so this */
-/* shouldn't be needed */
-static inline int shifted_port(unsigned long port)
-{
- /* For IDE registers, value is not shifted */
- if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
- return 0;
- else
- return 1;
-}
-
-/* In case someone configures the kernel w/o PCI support: in that */
-/* scenario, don't ever bother to check for PCI-window addresses */
-
-/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */
-#if defined(CONFIG_PCI)
-#define CHECK_SH7751_PCIIO(port) \
- ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE)))
-#else
-#define CHECK_SH7751_PCIIO(port) (0)
-#endif
-
-#if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE)
-#define CHECK_AX88796L_PORT(port) \
- ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20)))
-#else
-#define CHECK_AX88796L_PORT(port) (0)
-#endif
-
-/*
- * General outline: remap really low stuff [eventually] to SuperIO,
- * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
- * is mapped through the PCI IO window. Stuff with high bits (PXSEG)
- * should be way beyond the window, and is used w/o translation for
- * compatibility.
- */
-unsigned char rts7751r2d_inb(unsigned long port)
-{
- if (CHECK_AX88796L_PORT(port))
- return (*(volatile unsigned short *)port88796l(port, 0)) & 0xff;
- else if (PXSEG(port))
- return *(volatile unsigned char *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- return *(volatile unsigned char *)PCI_IOMAP(port);
- else
- return (*(volatile unsigned short *)port2adr(port) & 0xff);
-}
-
-unsigned char rts7751r2d_inb_p(unsigned long port)
-{
- unsigned char v;
-
- if (CHECK_AX88796L_PORT(port))
- v = (*(volatile unsigned short *)port88796l(port, 0)) & 0xff;
- else if (PXSEG(port))
- v = *(volatile unsigned char *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- v = *(volatile unsigned char *)PCI_IOMAP(port);
- else
- v = (*(volatile unsigned short *)port2adr(port) & 0xff);
- delay();
-
- return v;
-}
-
-unsigned short rts7751r2d_inw(unsigned long port)
-{
- if (CHECK_AX88796L_PORT(port))
- maybebadio(inw, port);
- else if (PXSEG(port))
- return *(volatile unsigned short *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- return *(volatile unsigned short *)PCI_IOMAP(port);
- else
- maybebadio(inw, port);
-
- return 0;
-}
-
-unsigned int rts7751r2d_inl(unsigned long port)
-{
- if (CHECK_AX88796L_PORT(port))
- maybebadio(inl, port);
- else if (PXSEG(port))
- return *(volatile unsigned long *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- return *(volatile unsigned long *)PCI_IOMAP(port);
- else
- maybebadio(inl, port);
-
- return 0;
-}
-
-void rts7751r2d_outb(unsigned char value, unsigned long port)
-{
- if (CHECK_AX88796L_PORT(port))
- *((volatile unsigned short *)port88796l(port, 0)) = value;
- else if (PXSEG(port))
- *(volatile unsigned char *)port = value;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- *(volatile unsigned char *)PCI_IOMAP(port) = value;
- else
- *(volatile unsigned short *)port2adr(port) = value;
-}
-
-void rts7751r2d_outb_p(unsigned char value, unsigned long port)
-{
- if (CHECK_AX88796L_PORT(port))
- *((volatile unsigned short *)port88796l(port, 0)) = value;
- else if (PXSEG(port))
- *(volatile unsigned char *)port = value;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- *(volatile unsigned char *)PCI_IOMAP(port) = value;
- else
- *(volatile unsigned short *)port2adr(port) = value;
- delay();
-}
-
-void rts7751r2d_outw(unsigned short value, unsigned long port)
-{
- if (CHECK_AX88796L_PORT(port))
- maybebadio(outw, port);
- else if (PXSEG(port))
- *(volatile unsigned short *)port = value;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- *(volatile unsigned short *)PCI_IOMAP(port) = value;
- else
- maybebadio(outw, port);
-}
-
-void rts7751r2d_outl(unsigned int value, unsigned long port)
-{
- if (CHECK_AX88796L_PORT(port))
- maybebadio(outl, port);
- else if (PXSEG(port))
- *(volatile unsigned long *)port = value;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- *(volatile unsigned long *)PCI_IOMAP(port) = value;
- else
- maybebadio(outl, port);
-}
-
-void rts7751r2d_insb(unsigned long port, void *addr, unsigned long count)
-{
- volatile __u8 *bp;
- volatile __u16 *p;
-
- if (CHECK_AX88796L_PORT(port)) {
- p = (volatile unsigned short *)port88796l(port, 0);
- while (count--) *((unsigned char *) addr)++ = *p & 0xff;
- } else if (PXSEG(port))
- while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
- bp = (__u8 *)PCI_IOMAP(port);
- while (count--) *((volatile unsigned char *) addr)++ = *bp;
- } else {
- p = (volatile unsigned short *)port2adr(port);
- while (count--) *((unsigned char *) addr)++ = *p & 0xff;
- }
-}
-
-void rts7751r2d_insw(unsigned long port, void *addr, unsigned long count)
-{
- volatile __u16 *p;
-
- if (CHECK_AX88796L_PORT(port))
- p = (volatile unsigned short *)port88796l(port, 1);
- else if (PXSEG(port))
- p = (volatile unsigned short *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- p = (volatile unsigned short *)PCI_IOMAP(port);
- else
- p = (volatile unsigned short *)port2adr(port);
- while (count--) *((__u16 *) addr)++ = *p;
-}
-
-void rts7751r2d_insl(unsigned long port, void *addr, unsigned long count)
-{
- if (CHECK_AX88796L_PORT(port))
- maybebadio(insl, port);
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
- volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
-
- while (count--) *((__u32 *) addr)++ = *p;
- } else
- maybebadio(insl, port);
-}
-
-void rts7751r2d_outsb(unsigned long port, const void *addr, unsigned long count)
-{
- volatile __u8 *bp;
- volatile __u16 *p;
-
- if (CHECK_AX88796L_PORT(port)) {
- p = (volatile unsigned short *)port88796l(port, 0);
- while (count--) *p = *((unsigned char *) addr)++;
- } else if (PXSEG(port))
- while (count--) *(volatile unsigned char *)port = *((unsigned char *) addr)++;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
- bp = (__u8 *)PCI_IOMAP(port);
- while (count--) *bp = *((volatile unsigned char *) addr)++;
- } else {
- p = (volatile unsigned short *)port2adr(port);
- while (count--) *p = *((unsigned char *) addr)++;
- }
-}
-
-void rts7751r2d_outsw(unsigned long port, const void *addr, unsigned long count)
-{
- volatile __u16 *p;
-
- if (CHECK_AX88796L_PORT(port))
- p = (volatile unsigned short *)port88796l(port, 1);
- else if (PXSEG(port))
- p = (volatile unsigned short *)port;
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
- p = (volatile unsigned short *)PCI_IOMAP(port);
- else
- p = (volatile unsigned short *)port2adr(port);
- while (count--) *p = *((__u16 *) addr)++;
-}
-
-void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count)
-{
- if (CHECK_AX88796L_PORT(port))
- maybebadio(outsl, port);
- else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
- volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
-
- while (count--) *p = *((__u32 *) addr)++;
- } else
- maybebadio(outsl, port);
-}
-
-void *rts7751r2d_ioremap(unsigned long offset, unsigned long size)
-{
- if (offset >= 0xfd000000)
- return (void *)offset;
- else
- return (void *)P2SEGADDR(offset);
-}
-EXPORT_SYMBOL(rts7751r2d_ioremap);
-
-unsigned long rts7751r2d_isa_port2addr(unsigned long offset)
-{
- return port2adr(offset);
-}
+++ /dev/null
-/*
- * linux/arch/sh/boards/renesas/rts7751r2d/irq.c
- *
- * Copyright (C) 2000 Kazumoto Kojima
- *
- * Renesas Technology Sales RTS7751R2D Support.
- *
- * Modified for RTS7751R2D by
- * Atom Create Engineering Co., Ltd. 2002.
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/rts7751r2d/rts7751r2d.h>
-
-#if defined(CONFIG_RTS7751R2D_REV11)
-static int mask_pos[] = {11, 9, 8, 12, 10, 6, 5, 4, 7, 14, 13, 0, 0, 0, 0};
-#else
-static int mask_pos[] = {6, 11, 9, 8, 12, 10, 5, 4, 7, 14, 13, 0, 0, 0, 0};
-#endif
-
-extern int voyagergx_irq_demux(int irq);
-extern void setup_voyagergx_irq(void);
-
-static void enable_rts7751r2d_irq(unsigned int irq);
-static void disable_rts7751r2d_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_rts7751r2d_irq disable_rts7751r2d_irq
-
-static void ack_rts7751r2d_irq(unsigned int irq);
-static void end_rts7751r2d_irq(unsigned int irq);
-
-static unsigned int startup_rts7751r2d_irq(unsigned int irq)
-{
- enable_rts7751r2d_irq(irq);
- return 0; /* never anything pending */
-}
-
-static void disable_rts7751r2d_irq(unsigned int irq)
-{
- unsigned long flags;
- unsigned short val;
- unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]);
-
- /* Set the priority in IPR to 0 */
- local_irq_save(flags);
- val = ctrl_inw(IRLCNTR1);
- val &= mask;
- ctrl_outw(val, IRLCNTR1);
- local_irq_restore(flags);
-}
-
-static void enable_rts7751r2d_irq(unsigned int irq)
-{
- unsigned long flags;
- unsigned short val;
- unsigned short value = (0x0001 << mask_pos[irq]);
-
- /* Set priority in IPR back to original value */
- local_irq_save(flags);
- val = ctrl_inw(IRLCNTR1);
- val |= value;
- ctrl_outw(val, IRLCNTR1);
- local_irq_restore(flags);
-}
-
-int rts7751r2d_irq_demux(int irq)
-{
- int demux_irq;
-
- demux_irq = voyagergx_irq_demux(irq);
- return demux_irq;
-}
-
-static void ack_rts7751r2d_irq(unsigned int irq)
-{
- disable_rts7751r2d_irq(irq);
-}
-
-static void end_rts7751r2d_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_rts7751r2d_irq(irq);
-}
-
-static struct hw_interrupt_type rts7751r2d_irq_type = {
- "RTS7751R2D IRQ",
- startup_rts7751r2d_irq,
- shutdown_rts7751r2d_irq,
- enable_rts7751r2d_irq,
- disable_rts7751r2d_irq,
- ack_rts7751r2d_irq,
- end_rts7751r2d_irq,
-};
-
-static void make_rts7751r2d_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_desc[irq].handler = &rts7751r2d_irq_type;
- disable_rts7751r2d_irq(irq);
-}
-
-/*
- * Initialize IRQ setting
- */
-void __init init_rts7751r2d_IRQ(void)
-{
- int i;
-
- /* IRL0=KEY Input
- * IRL1=Ethernet
- * IRL2=CF Card
- * IRL3=CF Card Insert
- * IRL4=PCMCIA
- * IRL5=VOYAGER
- * IRL6=RTC Alarm
- * IRL7=RTC Timer
- * IRL8=SD Card
- * IRL9=PCI Slot #1
- * IRL10=PCI Slot #2
- * IRL11=Extention #0
- * IRL12=Extention #1
- * IRL13=Extention #2
- * IRL14=Extention #3
- */
-
- for (i=0; i<15; i++)
- make_rts7751r2d_irq(i);
-
- setup_voyagergx_irq();
-}
+++ /dev/null
-/*
- * linux/arch/sh/kernel/led_rts7751r2d.c
- *
- * Copyright (C) Atom Create Engineering Co., Ltd.
- *
- * May be copied or modified under the terms of GNU General Public
- * License. See linux/COPYING for more information.
- *
- * This file contains Renesas Technology Sales RTS7751R2D specific LED code.
- */
-
-#include <linux/config.h>
-#include <asm/io.h>
-#include <asm/rts7751r2d/rts7751r2d.h>
-
-extern unsigned int debug_counter;
-
-#ifdef CONFIG_HEARTBEAT
-
-#include <linux/sched.h>
-
-/* Cycle the LED's in the clasic Knightriger/Sun pattern */
-void heartbeat_rts7751r2d(void)
-{
- static unsigned int cnt = 0, period = 0;
- volatile unsigned short *p = (volatile unsigned short *)PA_OUTPORT;
- static unsigned bit = 0, up = 1;
-
- cnt += 1;
- if (cnt < period)
- return;
-
- cnt = 0;
-
- /* Go through the points (roughly!):
- * f(0)=10, f(1)=16, f(2)=20, f(5)=35, f(int)->110
- */
- period = 110 - ((300 << FSHIFT)/((avenrun[0]/5) + (3<<FSHIFT)));
-
- *p = 1 << bit;
- if (up)
- if (bit == 7) {
- bit--;
- up = 0;
- } else
- bit++;
- else if (bit == 0)
- up = 1;
- else
- bit--;
-}
-#endif /* CONFIG_HEARTBEAT */
-
-void rts7751r2d_led(unsigned short value)
-{
- ctrl_outw(value, PA_OUTPORT);
-}
-
-void debug_led_disp(void)
-{
- unsigned short value;
-
- value = (unsigned short)debug_counter++;
- rts7751r2d_led(value);
- if (value == 0xff)
- debug_counter = 0;
-}
+++ /dev/null
-/*
- * linux/arch/sh/kernel/mach_rts7751r2d.c
- *
- * Minor tweak of mach_se.c file to reference rts7751r2d-specific items.
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Machine vector for the Renesas Technology sales RTS7751R2D
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/types.h>
-
-#include <asm/machvec.h>
-#include <asm/rtc.h>
-#include <asm/irq.h>
-#include <asm/rts7751r2d/io.h>
-
-extern void heartbeat_rts7751r2d(void);
-extern void init_rts7751r2d_IRQ(void);
-extern void *rts7751r2d_ioremap(unsigned long, unsigned long);
-extern int rts7751r2d_irq_demux(int irq);
-
-extern void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, int);
-extern void voyagergx_consistent_free(struct device *, size_t, void *, dma_addr_t);
-
-/*
- * The Machine Vector
- */
-
-struct sh_machine_vector mv_rts7751r2d __initmv = {
- .mv_nr_irqs = 72,
-
- .mv_inb = rts7751r2d_inb,
- .mv_inw = rts7751r2d_inw,
- .mv_inl = rts7751r2d_inl,
- .mv_outb = rts7751r2d_outb,
- .mv_outw = rts7751r2d_outw,
- .mv_outl = rts7751r2d_outl,
-
- .mv_inb_p = rts7751r2d_inb_p,
- .mv_inw_p = rts7751r2d_inw,
- .mv_inl_p = rts7751r2d_inl,
- .mv_outb_p = rts7751r2d_outb_p,
- .mv_outw_p = rts7751r2d_outw,
- .mv_outl_p = rts7751r2d_outl,
-
- .mv_insb = rts7751r2d_insb,
- .mv_insw = rts7751r2d_insw,
- .mv_insl = rts7751r2d_insl,
- .mv_outsb = rts7751r2d_outsb,
- .mv_outsw = rts7751r2d_outsw,
- .mv_outsl = rts7751r2d_outsl,
-
- .mv_ioremap = rts7751r2d_ioremap,
- .mv_isa_port2addr = rts7751r2d_isa_port2addr,
- .mv_init_irq = init_rts7751r2d_IRQ,
-#ifdef CONFIG_HEARTBEAT
- .mv_heartbeat = heartbeat_rts7751r2d,
-#endif
- .mv_irq_demux = rts7751r2d_irq_demux,
-
- .mv_consistent_alloc = voyagergx_consistent_alloc,
- .mv_consistent_free = voyagergx_consistent_free,
-};
-ALIAS_MV(rts7751r2d)
+++ /dev/null
-/*
- * linux/arch/sh/kernel/setup_rts7751r2d.c
- *
- * Copyright (C) 2000 Kazumoto Kojima
- *
- * Renesas Technology Sales RTS7751R2D Support.
- *
- * Modified for RTS7751R2D by
- * Atom Create Engineering Co., Ltd. 2002.
- */
-
-#include <linux/init.h>
-#include <asm/io.h>
-#include <asm/rts7751r2d/rts7751r2d.h>
-
-unsigned int debug_counter;
-
-const char *get_system_type(void)
-{
- return "RTS7751R2D";
-}
-
-/*
- * Initialize the board
- */
-void __init platform_setup(void)
-{
- printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
- ctrl_outw(0x0000, PA_OUTPORT);
- debug_counter = 0;
-}
+++ /dev/null
-#
-# Makefile for the SystemH specific parts of the kernel
-#
-
-obj-y := setup.o irq.o io.o
-
-# XXX: This wants to be consolidated in arch/sh/drivers/pci, and more
-# importantly, with the generic sh7751_pcic_init() code. For now, we'll
-# just abuse the hell out of kbuild, because we can..
-
-obj-$(CONFIG_PCI) += pci.o
-pci-y := ../../se/7751/pci.o
-
+++ /dev/null
-/*
- * linux/arch/sh/boards/systemh/io.c
- *
- * Copyright (C) 2001 Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routine for Hitachi 7751 Systemh.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <asm/systemh/7751systemh.h>
-#include <asm/addrspace.h>
-#include <asm/io.h>
-
-#include <linux/pci.h>
-#include "../../drivers/pci/pci-sh7751.h"
-
-/*
- * The 7751 SystemH Engine uses the built-in PCI controller (PCIC)
- * of the 7751 processor, and has a SuperIO accessible on its memory
- * bus.
- */
-
-#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR)
-#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR)
-#define PCI_IO_AREA SH7751_PCI_IO_BASE
-#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE
-
-#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK))
-#define ETHER_IOMAP(adr) (0xB3000000 + (adr)) /*map to 16bits access area
- of smc lan chip*/
-
-#define maybebadio(name,port) \
- printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \
- #name, (port), (__u32) __builtin_return_address(0))
-
-static inline void delay(void)
-{
- ctrl_inw(0xa0000000);
-}
-
-static inline volatile __u16 *
-port2adr(unsigned int port)
-{
- if (port >= 0x2000)
- return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
-#if 0
- else
- return (volatile __u16 *) (PA_SUPERIO + (port << 1));
-#endif
- maybebadio(name,(unsigned long)port);
- return (volatile __u16*)port;
-}
-
-/* In case someone configures the kernel w/o PCI support: in that */
-/* scenario, don't ever bother to check for PCI-window addresses */
-
-/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */
-#if defined(CONFIG_PCI)
-#define CHECK_SH7751_PCIIO(port) \
- ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE)))
-#else
-#define CHECK_SH7751_PCIIO(port) (0)
-#endif
-
-/*
- * General outline: remap really low stuff [eventually] to SuperIO,
- * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
- * is mapped through the PCI IO window. Stuff with high bits (PXSEG)
- * should be way beyond the window, and is used w/o translation for
- * compatibility.
- */
-unsigned char sh7751systemh_inb(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned char *)port;
- else if (CHECK_SH7751_PCIIO(port))
- return *(volatile unsigned char *)PCI_IOMAP(port);
- else if (port <= 0x3F1)
- return *(volatile unsigned char *)ETHER_IOMAP(port);
- else
- return (*port2adr(port))&0xff;
-}
-
-unsigned char sh7751systemh_inb_p(unsigned long port)
-{
- unsigned char v;
-
- if (PXSEG(port))
- v = *(volatile unsigned char *)port;
- else if (CHECK_SH7751_PCIIO(port))
- v = *(volatile unsigned char *)PCI_IOMAP(port);
- else if (port <= 0x3F1)
- v = *(volatile unsigned char *)ETHER_IOMAP(port);
- else
- v = (*port2adr(port))&0xff;
- delay();
- return v;
-}
-
-unsigned short sh7751systemh_inw(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned short *)port;
- else if (CHECK_SH7751_PCIIO(port))
- return *(volatile unsigned short *)PCI_IOMAP(port);
- else if (port >= 0x2000)
- return *port2adr(port);
- else if (port <= 0x3F1)
- return *(volatile unsigned int *)ETHER_IOMAP(port);
- else
- maybebadio(inw, port);
- return 0;
-}
-
-unsigned int sh7751systemh_inl(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned long *)port;
- else if (CHECK_SH7751_PCIIO(port))
- return *(volatile unsigned int *)PCI_IOMAP(port);
- else if (port >= 0x2000)
- return *port2adr(port);
- else if (port <= 0x3F1)
- return *(volatile unsigned int *)ETHER_IOMAP(port);
- else
- maybebadio(inl, port);
- return 0;
-}
-
-void sh7751systemh_outb(unsigned char value, unsigned long port)
-{
-
- if (PXSEG(port))
- *(volatile unsigned char *)port = value;
- else if (CHECK_SH7751_PCIIO(port))
- *((unsigned char*)PCI_IOMAP(port)) = value;
- else if (port <= 0x3F1)
- *(volatile unsigned char *)ETHER_IOMAP(port) = value;
- else
- *(port2adr(port)) = value;
-}
-
-void sh7751systemh_outb_p(unsigned char value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned char *)port = value;
- else if (CHECK_SH7751_PCIIO(port))
- *((unsigned char*)PCI_IOMAP(port)) = value;
- else if (port <= 0x3F1)
- *(volatile unsigned char *)ETHER_IOMAP(port) = value;
- else
- *(port2adr(port)) = value;
- delay();
-}
-
-void sh7751systemh_outw(unsigned short value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned short *)port = value;
- else if (CHECK_SH7751_PCIIO(port))
- *((unsigned short *)PCI_IOMAP(port)) = value;
- else if (port >= 0x2000)
- *port2adr(port) = value;
- else if (port <= 0x3F1)
- *(volatile unsigned short *)ETHER_IOMAP(port) = value;
- else
- maybebadio(outw, port);
-}
-
-void sh7751systemh_outl(unsigned int value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned long *)port = value;
- else if (CHECK_SH7751_PCIIO(port))
- *((unsigned long*)PCI_IOMAP(port)) = value;
- else
- maybebadio(outl, port);
-}
-
-void sh7751systemh_insb(unsigned long port, void *addr, unsigned long count)
-{
- unsigned char *p = addr;
- while (count--) *p++ = sh7751systemh_inb(port);
-}
-
-void sh7751systemh_insw(unsigned long port, void *addr, unsigned long count)
-{
- unsigned short *p = addr;
- while (count--) *p++ = sh7751systemh_inw(port);
-}
-
-void sh7751systemh_insl(unsigned long port, void *addr, unsigned long count)
-{
- maybebadio(insl, port);
-}
-
-void sh7751systemh_outsb(unsigned long port, const void *addr, unsigned long count)
-{
- unsigned char *p = (unsigned char*)addr;
- while (count--) sh7751systemh_outb(*p++, port);
-}
-
-void sh7751systemh_outsw(unsigned long port, const void *addr, unsigned long count)
-{
- unsigned short *p = (unsigned short*)addr;
- while (count--) sh7751systemh_outw(*p++, port);
-}
-
-void sh7751systemh_outsl(unsigned long port, const void *addr, unsigned long count)
-{
- maybebadio(outsw, port);
-}
-
-/* For read/write calls, just copy generic (pass-thru); PCIMBR is */
-/* already set up. For a larger memory space, these would need to */
-/* reset PCIMBR as needed on a per-call basis... */
-
-unsigned char sh7751systemh_readb(unsigned long addr)
-{
- return *(volatile unsigned char*)addr;
-}
-
-unsigned short sh7751systemh_readw(unsigned long addr)
-{
- return *(volatile unsigned short*)addr;
-}
-
-unsigned int sh7751systemh_readl(unsigned long addr)
-{
- return *(volatile unsigned long*)addr;
-}
-
-void sh7751systemh_writeb(unsigned char b, unsigned long addr)
-{
- *(volatile unsigned char*)addr = b;
-}
-
-void sh7751systemh_writew(unsigned short b, unsigned long addr)
-{
- *(volatile unsigned short*)addr = b;
-}
-
-void sh7751systemh_writel(unsigned int b, unsigned long addr)
-{
- *(volatile unsigned long*)addr = b;
-}
-
-\f
-
-/* Map ISA bus address to the real address. Only for PCMCIA. */
-
-/* ISA page descriptor. */
-static __u32 sh_isa_memmap[256];
-
-#if 0
-static int
-sh_isa_mmap(__u32 start, __u32 length, __u32 offset)
-{
- int idx;
-
- if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000))
- return -1;
-
- idx = start >> 12;
- sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff);
- printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n",
- start, length, offset, idx, sh_isa_memmap[idx]);
- return 0;
-}
-#endif
-
-unsigned long
-sh7751systemh_isa_port2addr(unsigned long offset)
-{
- int idx;
-
- idx = (offset >> 12) & 0xff;
- offset &= 0xfff;
- return sh_isa_memmap[idx] + offset;
-}
+++ /dev/null
-/*
- * linux/arch/sh/boards/systemh/irq.c
- *
- * Copyright (C) 2000 Kazumoto Kojima
- *
- * Hitachi SystemH Support.
- *
- * Modified for 7751 SystemH by
- * Jonathan Short.
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#include <asm/io.h>
-#include <asm/mach/7751systemh.h>
-#include <asm/smc37c93x.h>
-
-/* address of external interrupt mask register
- * address must be set prior to use these (maybe in init_XXX_irq())
- * XXX : is it better to use .config than specifying it in code? */
-static unsigned long *systemh_irq_mask_register = (unsigned long *)0xB3F10004;
-static unsigned long *systemh_irq_request_register = (unsigned long *)0xB3F10000;
-
-/* forward declaration */
-static unsigned int startup_systemh_irq(unsigned int irq);
-static void shutdown_systemh_irq(unsigned int irq);
-static void enable_systemh_irq(unsigned int irq);
-static void disable_systemh_irq(unsigned int irq);
-static void mask_and_ack_systemh(unsigned int);
-static void end_systemh_irq(unsigned int irq);
-
-/* hw_interrupt_type */
-static struct hw_interrupt_type systemh_irq_type = {
- " SystemH Register",
- startup_systemh_irq,
- shutdown_systemh_irq,
- enable_systemh_irq,
- disable_systemh_irq,
- mask_and_ack_systemh,
- end_systemh_irq
-};
-
-static unsigned int startup_systemh_irq(unsigned int irq)
-{
- enable_systemh_irq(irq);
- return 0; /* never anything pending */
-}
-
-static void shutdown_systemh_irq(unsigned int irq)
-{
- disable_systemh_irq(irq);
-}
-
-static void disable_systemh_irq(unsigned int irq)
-{
- if (systemh_irq_mask_register) {
- unsigned long flags;
- unsigned long val, mask = 0x01 << 1;
-
- /* Clear the "irq"th bit in the mask and set it in the request */
- local_irq_save(flags);
-
- val = ctrl_inl((unsigned long)systemh_irq_mask_register);
- val &= ~mask;
- ctrl_outl(val, (unsigned long)systemh_irq_mask_register);
-
- val = ctrl_inl((unsigned long)systemh_irq_request_register);
- val |= mask;
- ctrl_outl(val, (unsigned long)systemh_irq_request_register);
-
- local_irq_restore(flags);
- }
-}
-
-static void enable_systemh_irq(unsigned int irq)
-{
- if (systemh_irq_mask_register) {
- unsigned long flags;
- unsigned long val, mask = 0x01 << 1;
-
- /* Set "irq"th bit in the mask register */
- local_irq_save(flags);
- val = ctrl_inl((unsigned long)systemh_irq_mask_register);
- val |= mask;
- ctrl_outl(val, (unsigned long)systemh_irq_mask_register);
- local_irq_restore(flags);
- }
-}
-
-static void mask_and_ack_systemh(unsigned int irq)
-{
- disable_systemh_irq(irq);
-}
-
-static void end_systemh_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_systemh_irq(irq);
-}
-
-void make_systemh_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_desc[irq].handler = &systemh_irq_type;
- disable_systemh_irq(irq);
-}
-
+++ /dev/null
-/*
- * linux/arch/sh/boards/systemh/setup.c
- *
- * Copyright (C) 2000 Kazumoto Kojima
- * Copyright (C) 2003 Paul Mundt
- *
- * Hitachi SystemH Support.
- *
- * Modified for 7751 SystemH by Jonathan Short.
- *
- * Rewritten for 2.6 by Paul Mundt.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <asm/mach/7751systemh.h>
-#include <asm/mach/io.h>
-#include <asm/machvec.h>
-
-extern void make_systemh_irq(unsigned int irq);
-
-const char *get_system_type(void)
-{
- return "7751 SystemH";
-}
-
-/*
- * Initialize IRQ setting
- */
-void __init init_7751systemh_IRQ(void)
-{
-/* make_ipr_irq(10, BCR_ILCRD, 1, 0x0f-10); LAN */
-/* make_ipr_irq(14, BCR_ILCRA, 2, 0x0f-4); */
- make_systemh_irq(0xb); /* Ethernet interrupt */
-}
-
-struct sh_machine_vector mv_7751systemh __initmv = {
- .mv_nr_irqs = 72,
-
- .mv_inb = sh7751systemh_inb,
- .mv_inw = sh7751systemh_inw,
- .mv_inl = sh7751systemh_inl,
- .mv_outb = sh7751systemh_outb,
- .mv_outw = sh7751systemh_outw,
- .mv_outl = sh7751systemh_outl,
-
- .mv_inb_p = sh7751systemh_inb_p,
- .mv_inw_p = sh7751systemh_inw,
- .mv_inl_p = sh7751systemh_inl,
- .mv_outb_p = sh7751systemh_outb_p,
- .mv_outw_p = sh7751systemh_outw,
- .mv_outl_p = sh7751systemh_outl,
-
- .mv_insb = sh7751systemh_insb,
- .mv_insw = sh7751systemh_insw,
- .mv_insl = sh7751systemh_insl,
- .mv_outsb = sh7751systemh_outsb,
- .mv_outsw = sh7751systemh_outsw,
- .mv_outsl = sh7751systemh_outsl,
-
- .mv_readb = sh7751systemh_readb,
- .mv_readw = sh7751systemh_readw,
- .mv_readl = sh7751systemh_readl,
- .mv_writeb = sh7751systemh_writeb,
- .mv_writew = sh7751systemh_writew,
- .mv_writel = sh7751systemh_writel,
-
- .mv_isa_port2addr = sh7751systemh_isa_port2addr,
-
- .mv_init_irq = init_7751systemh_IRQ,
-};
-ALIAS_MV(7751systemh)
-
-int __init platform_setup(void)
-{
- return 0;
-}
-
+++ /dev/null
-#
-# Makefile for the 7300 SolutionEngine specific parts of the kernel
-#
-
-obj-y := setup.o io.o irq.o
-
-obj-$(CONFIG_HEARTBEAT) += led.o
+++ /dev/null
-/*
- * linux/arch/sh/boards/se/7300/io.c
- *
- * Copyright (C) 2003 YOSHII Takashi <yoshii-takashi@hitachi-ul.co.jp>
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <asm/se7300/se7300.h>
-#include <asm/io.h>
-
-#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a)
-
-struct iop {
- unsigned long start, end;
- unsigned long base;
- struct iop *(*check) (struct iop * p, unsigned long port);
- unsigned char (*inb) (struct iop * p, unsigned long port);
- unsigned short (*inw) (struct iop * p, unsigned long port);
- void (*outb) (struct iop * p, unsigned char value, unsigned long port);
- void (*outw) (struct iop * p, unsigned short value, unsigned long port);
-};
-
-struct iop *
-simple_check(struct iop *p, unsigned long port)
-{
- if ((p->start <= port) && (port <= p->end))
- return p;
- else
- badio(check, port);
-}
-
-struct iop *
-ide_check(struct iop *p, unsigned long port)
-{
- if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7))
- return p;
- return NULL;
-}
-
-unsigned char
-simple_inb(struct iop *p, unsigned long port)
-{
- return *(unsigned char *) (p->base + port);
-}
-
-unsigned short
-simple_inw(struct iop *p, unsigned long port)
-{
- return *(unsigned short *) (p->base + port);
-}
-
-void
-simple_outb(struct iop *p, unsigned char value, unsigned long port)
-{
- *(unsigned char *) (p->base + port) = value;
-}
-
-void
-simple_outw(struct iop *p, unsigned short value, unsigned long port)
-{
- *(unsigned short *) (p->base + port) = value;
-}
-
-unsigned char
-pcc_inb(struct iop *p, unsigned long port)
-{
- unsigned long addr = p->base + port + 0x40000;
- unsigned long v;
-
- if (port & 1)
- addr += 0x00400000;
- v = *(volatile unsigned char *) addr;
- return v;
-}
-
-void
-pcc_outb(struct iop *p, unsigned char value, unsigned long port)
-{
- unsigned long addr = p->base + port + 0x40000;
-
- if (port & 1)
- addr += 0x00400000;
- *(volatile unsigned char *) addr = value;
-}
-
-unsigned char
-bad_inb(struct iop *p, unsigned long port)
-{
- badio(inb, port);
-}
-
-void
-bad_outb(struct iop *p, unsigned char value, unsigned long port)
-{
- badio(inw, port);
-}
-
-/* MSTLANEX01 LAN at 0xb400:0000 */
-static struct iop laniop = {
- .start = 0x300,
- .end = 0x30f,
- .base = 0xb4000000,
- .check = simple_check,
- .inb = simple_inb,
- .inw = simple_inw,
- .outb = simple_outb,
- .outw = simple_outw,
-};
-
-/* NE2000 pc card NIC */
-static struct iop neiop = {
- .start = 0x280,
- .end = 0x29f,
- .base = 0xb0600000 + 0x80, /* soft 0x280 -> hard 0x300 */
- .check = simple_check,
- .inb = pcc_inb,
- .inw = simple_inw,
- .outb = pcc_outb,
- .outw = simple_outw,
-};
-
-/* CF in CF slot */
-static struct iop cfiop = {
- .base = 0xb0600000,
- .check = ide_check,
- .inb = pcc_inb,
- .inw = simple_inw,
- .outb = pcc_outb,
- .outw = simple_outw,
-};
-
-static __inline__ struct iop *
-port2iop(unsigned long port)
-{
- if (0) ;
-#if defined(CONFIG_SMC91111)
- else if (laniop.check(&laniop, port))
- return &laniop;
-#endif
-#if defined(CONFIG_NE2000)
- else if (neiop.check(&neiop, port))
- return &neiop;
-#endif
-#if defined(CONFIG_IDE)
- else if (cfiop.check(&cfiop, port))
- return &cfiop;
-#endif
- else
- return &neiop; /* fallback */
-}
-
-static inline void
-delay(void)
-{
- ctrl_inw(0xac000000);
- ctrl_inw(0xac000000);
-}
-
-unsigned char
-sh7300se_inb(unsigned long port)
-{
- struct iop *p = port2iop(port);
- return (p->inb) (p, port);
-}
-
-unsigned char
-sh7300se_inb_p(unsigned long port)
-{
- unsigned char v = sh7300se_inb(port);
- delay();
- return v;
-}
-
-unsigned short
-sh7300se_inw(unsigned long port)
-{
- struct iop *p = port2iop(port);
- return (p->inw) (p, port);
-}
-
-unsigned int
-sh7300se_inl(unsigned long port)
-{
- badio(inl, port);
-}
-
-void
-sh7300se_outb(unsigned char value, unsigned long port)
-{
- struct iop *p = port2iop(port);
- (p->outb) (p, value, port);
-}
-
-void
-sh7300se_outb_p(unsigned char value, unsigned long port)
-{
- sh7300se_outb(value, port);
- delay();
-}
-
-void
-sh7300se_outw(unsigned short value, unsigned long port)
-{
- struct iop *p = port2iop(port);
- (p->outw) (p, value, port);
-}
-
-void
-sh7300se_outl(unsigned int value, unsigned long port)
-{
- badio(outl, port);
-}
-
-void
-sh7300se_insb(unsigned long port, void *addr, unsigned long count)
-{
- unsigned char *a = addr;
- struct iop *p = port2iop(port);
- while (count--)
- *a++ = (p->inb) (p, port);
-}
-
-void
-sh7300se_insw(unsigned long port, void *addr, unsigned long count)
-{
- unsigned short *a = addr;
- struct iop *p = port2iop(port);
- while (count--)
- *a++ = (p->inw) (p, port);
-}
-
-void
-sh7300se_insl(unsigned long port, void *addr, unsigned long count)
-{
- badio(insl, port);
-}
-
-void
-sh7300se_outsb(unsigned long port, const void *addr, unsigned long count)
-{
- unsigned char *a = (unsigned char *) addr;
- struct iop *p = port2iop(port);
- while (count--)
- (p->outb) (p, *a++, port);
-}
-
-void
-sh7300se_outsw(unsigned long port, const void *addr, unsigned long count)
-{
- unsigned short *a = (unsigned short *) addr;
- struct iop *p = port2iop(port);
- while (count--)
- (p->outw) (p, *a++, port);
-}
-
-void
-sh7300se_outsl(unsigned long port, const void *addr, unsigned long count)
-{
- badio(outsw, port);
-}
+++ /dev/null
-/*
- * linux/arch/sh/boards/se/7300/irq.c
- *
- * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
- *
- * SH-Mobile SolutionEngine 7300 Support.
- *
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/mach/se7300.h>
-
-/*
- * Initialize IRQ setting
- */
-void __init
-init_7300se_IRQ(void)
-{
- ctrl_outw(0x0028, PA_EPLD_MODESET); /* mode set IRQ0,1 active low. */
- ctrl_outw(0xa000, INTC_ICR1); /* IRQ mode; IRQ0,1 enable. */
- ctrl_outw(0x0000, PORT_PFCR); /* use F for IRQ[3:0] and SIU. */
-
- /* PC_IRQ[0-3] -> IRQ0 (32) */
- make_ipr_irq(IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, 0x0f - IRQ0_IRQ);
- /* A_IRQ[0-3] -> IRQ1 (33) */
- make_ipr_irq(IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, 0x0f - IRQ1_IRQ);
- make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY);
- make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
- make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
- make_ipr_irq(VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
-
- ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */
-}
+++ /dev/null
-/*
- * linux/arch/sh/boards/se/7300/led.c
- *
- * Derived from linux/arch/sh/boards/se/770x/led.c
- *
- * Copyright (C) 2000 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * This file contains Solution Engine specific LED code.
- */
-
-#include <linux/config.h>
-#include <linux/sched.h>
-#include <asm/mach/se7300.h>
-
-static void
-mach_led(int position, int value)
-{
- volatile unsigned short *p = (volatile unsigned short *) PA_LED;
-
- if (value) {
- *p |= (1 << 8);
- } else {
- *p &= ~(1 << 8);
- }
-}
-
-
-/* Cycle the LED's in the clasic Knightrider/Sun pattern */
-void
-heartbeat_7300se(void)
-{
- static unsigned int cnt = 0, period = 0;
- volatile unsigned short *p = (volatile unsigned short *) PA_LED;
- static unsigned bit = 0, up = 1;
-
- cnt += 1;
- if (cnt < period) {
- return;
- }
-
- cnt = 0;
-
- /* Go through the points (roughly!):
- * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
- */
- period = 110 - ((300 << FSHIFT) / ((avenrun[0] / 5) + (3 << FSHIFT)));
-
- if (up) {
- if (bit == 7) {
- bit--;
- up = 0;
- } else {
- bit++;
- }
- } else {
- if (bit == 0) {
- bit++;
- up = 1;
- } else {
- bit--;
- }
- }
- *p = 1 << (bit + 8);
-
-}
-
+++ /dev/null
-/*
- * linux/arch/sh/boards/se/7300/setup.c
- *
- * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
- *
- * SH-Mobile SolutionEngine 7300 Support.
- *
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <asm/machvec.h>
-#include <asm/machvec_init.h>
-#include <asm/mach/io.h>
-
-void heartbeat_7300se(void);
-void init_7300se_IRQ(void);
-
-const char *
-get_system_type(void)
-{
- return "SolutionEngine 7300";
-}
-
-/*
- * The Machine Vector
- */
-
-struct sh_machine_vector mv_7300se __initmv = {
- .mv_nr_irqs = 109,
- .mv_inb = sh7300se_inb,
- .mv_inw = sh7300se_inw,
- .mv_inl = sh7300se_inl,
- .mv_outb = sh7300se_outb,
- .mv_outw = sh7300se_outw,
- .mv_outl = sh7300se_outl,
-
- .mv_inb_p = sh7300se_inb_p,
- .mv_inw_p = sh7300se_inw,
- .mv_inl_p = sh7300se_inl,
- .mv_outb_p = sh7300se_outb_p,
- .mv_outw_p = sh7300se_outw,
- .mv_outl_p = sh7300se_outl,
-
- .mv_insb = sh7300se_insb,
- .mv_insw = sh7300se_insw,
- .mv_insl = sh7300se_insl,
- .mv_outsb = sh7300se_outsb,
- .mv_outsw = sh7300se_outsw,
- .mv_outsl = sh7300se_outsl,
-
- .mv_init_irq = init_7300se_IRQ,
-#ifdef CONFIG_HEARTBEAT
- .mv_heartbeat = heartbeat_7300se,
-#endif
-};
-
-ALIAS_MV(7300se)
-/*
- * Initialize the board
- */
-void __init
-platform_setup(void)
-{
-
-}
+++ /dev/null
-#
-# Makefile for VoyagerGX
-#
-
-obj-y := irq.o setup.o
-
-obj-$(CONFIG_USB_OHCI_HCD) += consistent.o
-
+++ /dev/null
-/*
- * arch/sh/cchips/voyagergx/consistent.c
- *
- * Copyright (C) 2004 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/mm.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <asm/io.h>
-#include <asm/bus-sh.h>
-
-struct voya_alloc_entry {
- struct list_head list;
- unsigned long ofs;
- unsigned long len;
-};
-
-static spinlock_t voya_list_lock = SPIN_LOCK_UNLOCKED;
-static LIST_HEAD(voya_alloc_list);
-
-#define OHCI_SRAM_START 0xb0000000
-#define OHCI_HCCA_SIZE 0x100
-#define OHCI_SRAM_SIZE 0x10000
-
-void *voyagergx_consistent_alloc(struct device *dev, size_t size,
- dma_addr_t *handle, int flag)
-{
- struct list_head *list = &voya_alloc_list;
- struct voya_alloc_entry *entry;
- struct sh_dev *shdev = to_sh_dev(dev);
- unsigned long start, end;
- unsigned long flags;
-
- /*
- * The SM501 contains an integrated 8051 with its own SRAM.
- * Devices within the cchip can all hook into the 8051 SRAM.
- * We presently use this for the OHCI.
- *
- * Everything else goes through consistent_alloc().
- */
- if (!dev || dev->bus != &sh_bus_types[SH_BUS_VIRT] ||
- (dev->bus == &sh_bus_types[SH_BUS_VIRT] &&
- shdev->dev_id != SH_DEV_ID_USB_OHCI))
- return consistent_alloc(flag, size, handle);
-
- start = OHCI_SRAM_START + OHCI_HCCA_SIZE;
-
- entry = kmalloc(sizeof(struct voya_alloc_entry), GFP_ATOMIC);
- if (!entry)
- return NULL;
-
- entry->len = (size + 15) & ~15;
-
- /*
- * The basis for this allocator is dwmw2's malloc.. the
- * Matrox allocator :-)
- */
- spin_lock_irqsave(&voya_list_lock, flags);
- list_for_each(list, &voya_alloc_list) {
- struct voya_alloc_entry *p;
-
- p = list_entry(list, struct voya_alloc_entry, list);
-
- if (p->ofs - start >= size)
- goto out;
-
- start = p->ofs + p->len;
- }
-
- end = start + (OHCI_SRAM_SIZE - OHCI_HCCA_SIZE);
- list = &voya_alloc_list;
-
- if (end - start >= size) {
-out:
- entry->ofs = start;
- list_add_tail(&entry->list, list);
- spin_unlock_irqrestore(&voya_list_lock, flags);
-
- *handle = start;
- return (void *)start;
- }
-
- kfree(entry);
- spin_unlock_irqrestore(&voya_list_lock, flags);
-
- return NULL;
-}
-
-void voyagergx_consistent_free(struct device *dev, size_t size,
- void *vaddr, dma_addr_t handle)
-{
- struct voya_alloc_entry *entry;
- struct sh_dev *shdev = to_sh_dev(dev);
- unsigned long flags;
-
- if (!dev || dev->bus != &sh_bus_types[SH_BUS_VIRT] ||
- (dev->bus == &sh_bus_types[SH_BUS_VIRT] &&
- shdev->dev_id != SH_DEV_ID_USB_OHCI)) {
- consistent_free(vaddr, size);
- return;
- }
-
- spin_lock_irqsave(&voya_list_lock, flags);
- list_for_each_entry(entry, &voya_alloc_list, list) {
- if (entry->ofs != handle)
- continue;
-
- list_del(&entry->list);
- kfree(entry);
-
- break;
- }
- spin_unlock_irqrestore(&voya_list_lock, flags);
-}
-
-EXPORT_SYMBOL(voyagergx_consistent_alloc);
-EXPORT_SYMBOL(voyagergx_consistent_free);
-
+++ /dev/null
-/* -------------------------------------------------------------------- */
-/* setup_voyagergx.c: */
-/* -------------------------------------------------------------------- */
-/* This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Copyright 2003 (c) Lineo uSolutions,Inc.
-*/
-/* -------------------------------------------------------------------- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/sched.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/rts7751r2d/rts7751r2d.h>
-#include <asm/rts7751r2d/voyagergx_reg.h>
-
-static void disable_voyagergx_irq(unsigned int irq)
-{
- unsigned long flags, val;
- unsigned long mask = 1 << (irq - VOYAGER_IRQ_BASE);
-
- pr_debug("disable_voyagergx_irq(%d): mask=%x\n", irq, mask);
- local_irq_save(flags);
- val = inl(VOYAGER_INT_MASK);
- val &= ~mask;
- outl(val, VOYAGER_INT_MASK);
- local_irq_restore(flags);
-}
-
-
-static void enable_voyagergx_irq(unsigned int irq)
-{
- unsigned long flags, val;
- unsigned long mask = 1 << (irq - VOYAGER_IRQ_BASE);
-
- pr_debug("disable_voyagergx_irq(%d): mask=%x\n", irq, mask);
- local_irq_save(flags);
- val = inl(VOYAGER_INT_MASK);
- val |= mask;
- outl(val, VOYAGER_INT_MASK);
- local_irq_restore(flags);
-}
-
-
-static void mask_and_ack_voyagergx(unsigned int irq)
-{
- disable_voyagergx_irq(irq);
-}
-
-static void end_voyagergx_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_voyagergx_irq(irq);
-}
-
-static unsigned int startup_voyagergx_irq(unsigned int irq)
-{
- enable_voyagergx_irq(irq);
- return 0;
-}
-
-static void shutdown_voyagergx_irq(unsigned int irq)
-{
- disable_voyagergx_irq(irq);
-}
-
-static struct hw_interrupt_type voyagergx_irq_type = {
- "VOYAGERGX-IRQ",
- startup_voyagergx_irq,
- shutdown_voyagergx_irq,
- enable_voyagergx_irq,
- disable_voyagergx_irq,
- mask_and_ack_voyagergx,
- end_voyagergx_irq,
-};
-
-static irqreturn_t voyagergx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- printk(KERN_INFO
- "VoyagerGX: spurious interrupt, status: 0x%x\n",
- inl(INT_STATUS));
- return IRQ_HANDLED;
-}
-
-
-/*====================================================*/
-
-static struct {
- int (*func)(int, void *);
- void *dev;
-} voyagergx_demux[VOYAGER_IRQ_NUM];
-
-void voyagergx_register_irq_demux(int irq,
- int (*demux)(int irq, void *dev), void *dev)
-{
- voyagergx_demux[irq - VOYAGER_IRQ_BASE].func = demux;
- voyagergx_demux[irq - VOYAGER_IRQ_BASE].dev = dev;
-}
-
-void voyagergx_unregister_irq_demux(int irq)
-{
- voyagergx_demux[irq - VOYAGER_IRQ_BASE].func = 0;
-}
-
-int voyagergx_irq_demux(int irq)
-{
-
- if (irq == IRQ_VOYAGER ) {
- unsigned long i = 0, bit __attribute__ ((unused));
- unsigned long val = inl(INT_STATUS);
-#if 1
- if ( val & ( 1 << 1 )){
- i = 1;
- } else if ( val & ( 1 << 2 )){
- i = 2;
- } else if ( val & ( 1 << 6 )){
- i = 6;
- } else if( val & ( 1 << 10 )){
- i = 10;
- } else if( val & ( 1 << 11 )){
- i = 11;
- } else if( val & ( 1 << 12 )){
- i = 12;
- } else if( val & ( 1 << 17 )){
- i = 17;
- } else {
- printk("Unexpected IRQ irq = %d status = 0x%08lx\n", irq, val);
- }
- pr_debug("voyagergx_irq_demux %d \n", i);
-#else
- for (bit = 1, i = 0 ; i < VOYAGER_IRQ_NUM ; bit <<= 1, i++)
- if (val & bit)
- break;
-#endif
- if (i < VOYAGER_IRQ_NUM) {
- irq = VOYAGER_IRQ_BASE + i;
- if (voyagergx_demux[i].func != 0)
- irq = voyagergx_demux[i].func(irq, voyagergx_demux[i].dev);
- }
- }
- return irq;
-}
-
-static struct irqaction irq0 = { voyagergx_interrupt, SA_INTERRUPT, 0, "VOYAGERGX", NULL, NULL};
-
-void __init setup_voyagergx_irq(void)
-{
- int i, flag;
-
- printk(KERN_INFO "VoyagerGX configured at 0x%x on irq %d(mapped into %d to %d)\n",
- VOYAGER_BASE,
- IRQ_VOYAGER,
- VOYAGER_IRQ_BASE,
- VOYAGER_IRQ_BASE + VOYAGER_IRQ_NUM - 1);
-
- for (i=0; i<VOYAGER_IRQ_NUM; i++) {
- flag = 0;
- switch (VOYAGER_IRQ_BASE + i) {
- case VOYAGER_USBH_IRQ:
- case VOYAGER_8051_IRQ:
- case VOYAGER_UART0_IRQ:
- case VOYAGER_UART1_IRQ:
- case VOYAGER_AC97_IRQ:
- flag = 1;
- }
- if (flag == 1)
- irq_desc[VOYAGER_IRQ_BASE + i].handler = &voyagergx_irq_type;
- }
-
- setup_irq(IRQ_VOYAGER, &irq0);
-}
-
+++ /dev/null
-/*
- * arch/sh/cchips/voyagergx/setup.c
- *
- * Setup routines for VoyagerGX cchip.
- *
- * Copyright (C) 2003 Lineo uSolutions, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <asm/io.h>
-#include <asm/rts7751r2d/voyagergx_reg.h>
-
-static int __init setup_voyagergx(void)
-{
- unsigned long val;
-
- val = inl(DRAM_CTRL);
- val |= (DRAM_CTRL_CPU_COLUMN_SIZE_256 |
- DRAM_CTRL_CPU_ACTIVE_PRECHARGE |
- DRAM_CTRL_CPU_RESET |
- DRAM_CTRL_REFRESH_COMMAND |
- DRAM_CTRL_BLOCK_WRITE_TIME |
- DRAM_CTRL_BLOCK_WRITE_PRECHARGE |
- DRAM_CTRL_ACTIVE_PRECHARGE |
- DRAM_CTRL_RESET |
- DRAM_CTRL_REMAIN_ACTIVE);
- outl(val, DRAM_CTRL);
-
- return 0;
-}
-
-module_init(setup_voyagergx);
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_SUPERH=y
-CONFIG_UID16=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
-CONFIG_STANDALONE=y
-CONFIG_BROKEN_ON_SMP=y
-
-#
-# General setup
-#
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_IKCONFIG is not set
-CONFIG_EMBEDDED=y
-CONFIG_KALLSYMS=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-# CONFIG_MODULE_UNLOAD is not set
-CONFIG_OBSOLETE_MODPARM=y
-# CONFIG_MODVERSIONS is not set
-# CONFIG_KMOD is not set
-
-#
-# System type
-#
-# CONFIG_SH_SOLUTION_ENGINE is not set
-# CONFIG_SH_7751_SOLUTION_ENGINE is not set
-# CONFIG_SH_7751_SYSTEMH is not set
-# CONFIG_SH_STB1_HARP is not set
-# CONFIG_SH_STB1_OVERDRIVE is not set
-# CONFIG_SH_HP620 is not set
-# CONFIG_SH_HP680 is not set
-# CONFIG_SH_HP690 is not set
-# CONFIG_SH_CQREEK is not set
-# CONFIG_SH_DMIDA is not set
-# CONFIG_SH_EC3104 is not set
-# CONFIG_SH_SATURN is not set
-# CONFIG_SH_DREAMCAST is not set
-# CONFIG_SH_CAT68701 is not set
-# CONFIG_SH_BIGSUR is not set
-# CONFIG_SH_SH2000 is not set
-# CONFIG_SH_ADX is not set
-# CONFIG_SH_MPC1211 is not set
-# CONFIG_SH_SECUREEDGE5410 is not set
-CONFIG_SH_RTS7751R2D=y
-# CONFIG_SH_UNKNOWN is not set
-# CONFIG_CPU_SH2 is not set
-# CONFIG_CPU_SH3 is not set
-CONFIG_CPU_SH4=y
-# CONFIG_CPU_SUBTYPE_SH7604 is not set
-# CONFIG_CPU_SUBTYPE_SH7300 is not set
-# CONFIG_CPU_SUBTYPE_SH7707 is not set
-# CONFIG_CPU_SUBTYPE_SH7708 is not set
-# CONFIG_CPU_SUBTYPE_SH7709 is not set
-# CONFIG_CPU_SUBTYPE_SH7750 is not set
-CONFIG_CPU_SUBTYPE_SH7751=y
-# CONFIG_CPU_SUBTYPE_SH7760 is not set
-# CONFIG_CPU_SUBTYPE_ST40STB1 is not set
-CONFIG_MMU=y
-CONFIG_CMDLINE_BOOL=y
-CONFIG_CMDLINE="mem=64M console=ttySC0,115200 root=/dev/hda1"
-CONFIG_MEMORY_START=0x0c000000
-CONFIG_MEMORY_SIZE=0x04000000
-CONFIG_MEMORY_SET=y
-# CONFIG_MEMORY_OVERRIDE is not set
-CONFIG_SH_RTC=y
-CONFIG_ZERO_PAGE_OFFSET=0x00010000
-CONFIG_BOOT_LINK_OFFSET=0x00800000
-CONFIG_CPU_LITTLE_ENDIAN=y
-# CONFIG_PREEMPT is not set
-# CONFIG_UBC_WAKEUP is not set
-# CONFIG_SH_WRITETHROUGH is not set
-# CONFIG_SH_OCRAM is not set
-# CONFIG_SH_STORE_QUEUES is not set
-# CONFIG_SMP is not set
-CONFIG_VOYAGERGX=y
-CONFIG_RTS7751R2D_REV11=y
-CONFIG_SH_PCLK_FREQ=60000000
-# CONFIG_CPU_FREQ is not set
-CONFIG_SH_DMA=y
-CONFIG_NR_ONCHIP_DMA_CHANNELS=8
-# CONFIG_NR_DMA_CHANNELS_BOOL is not set
-# CONFIG_DMA_PAGE_OPS is not set
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-CONFIG_ISA=y
-CONFIG_PCI=y
-CONFIG_SH_PCIDMA_NONCOHERENT=y
-CONFIG_PCI_AUTO=y
-CONFIG_PCI_AUTO_UPDATE_RESOURCES=y
-CONFIG_PCI_DMA=y
-# CONFIG_PCI_LEGACY_PROC is not set
-CONFIG_PCI_NAMES=y
-CONFIG_HOTPLUG=y
-
-#
-# PCMCIA/CardBus support
-#
-CONFIG_PCMCIA=m
-CONFIG_YENTA=m
-CONFIG_CARDBUS=y
-# CONFIG_I82092 is not set
-# CONFIG_I82365 is not set
-# CONFIG_TCIC is not set
-CONFIG_PCMCIA_PROBE=y
-
-#
-# PCI Hotplug Support
-#
-CONFIG_HOTPLUG_PCI=y
-# CONFIG_HOTPLUG_PCI_FAKE is not set
-# CONFIG_HOTPLUG_PCI_CPCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Generic Driver Options
-#
-# CONFIG_FW_LOADER is not set
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_DEV_XD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=4096
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_LBD is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDE=y
-
-#
-# Please see Documentation/ide.txt for help/info on IDE drives
-#
-CONFIG_BLK_DEV_IDEDISK=y
-# CONFIG_IDEDISK_MULTI_MODE is not set
-# CONFIG_IDEDISK_STROKE is not set
-CONFIG_BLK_DEV_IDECS=m
-# CONFIG_BLK_DEV_IDECD is not set
-# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_BLK_DEV_IDEFLOPPY is not set
-# CONFIG_IDE_TASK_IOCTL is not set
-# CONFIG_IDE_TASKFILE_IO is not set
-
-#
-# IDE chipset support/bugfixes
-#
-# CONFIG_BLK_DEV_IDEPCI is not set
-# CONFIG_IDE_CHIPSETS is not set
-# CONFIG_BLK_DEV_IDEDMA is not set
-# CONFIG_IDEDMA_AUTO is not set
-# CONFIG_DMA_NONPCI is not set
-# CONFIG_BLK_DEV_HD is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Old CD-ROM drivers (not SCSI, not IDE)
-#
-# CONFIG_CD_NO_IDESCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# IEEE 1394 (FireWire) support (EXPERIMENTAL)
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# Networking support
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
-CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-# CONFIG_IP_PNP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_INET_ECN is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_IPV6 is not set
-# CONFIG_DECNET is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_NETFILTER is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-CONFIG_IPV6_SCTP__=y
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_FASTROUTE is not set
-# CONFIG_NET_HW_FLOWCONTROL is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-CONFIG_NETDEVICES=y
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-# CONFIG_STNIC is not set
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_LANCE is not set
-# CONFIG_NET_VENDOR_SMC is not set
-# CONFIG_NET_VENDOR_RACAL is not set
-
-#
-# Tulip family network device support
-#
-# CONFIG_NET_TULIP is not set
-# CONFIG_AT1700 is not set
-# CONFIG_DEPCA is not set
-# CONFIG_HP100 is not set
-CONFIG_NET_ISA=y
-# CONFIG_E2100 is not set
-# CONFIG_EWRK3 is not set
-# CONFIG_EEXPRESS is not set
-# CONFIG_EEXPRESS_PRO is not set
-# CONFIG_HPLAN_PLUS is not set
-# CONFIG_HPLAN is not set
-# CONFIG_LP486E is not set
-# CONFIG_ETH16I is not set
-CONFIG_NE2000=m
-# CONFIG_ZNET is not set
-# CONFIG_SEEQ8005 is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_AC3200 is not set
-# CONFIG_APRICOT is not set
-# CONFIG_B44 is not set
-# CONFIG_CS89x0 is not set
-# CONFIG_DGRS is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139CP is not set
-CONFIG_8139TOO=y
-# CONFIG_8139TOO_PIO is not set
-# CONFIG_8139TOO_TUNE_TWISTER is not set
-# CONFIG_8139TOO_8129 is not set
-# CONFIG_8139_OLD_RX_RESET is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-# CONFIG_NET_POCKET is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_TIGON3 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_IXGB is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-CONFIG_NET_RADIO=y
-
-#
-# Obsolete Wireless cards support (pre-802.11)
-#
-# CONFIG_STRIP is not set
-# CONFIG_ARLAN is not set
-# CONFIG_WAVELAN is not set
-# CONFIG_PCMCIA_WAVELAN is not set
-# CONFIG_PCMCIA_NETWAVE is not set
-
-#
-# Wireless 802.11 Frequency Hopping cards support
-#
-# CONFIG_PCMCIA_RAYCS is not set
-
-#
-# Wireless 802.11b ISA/PCI cards support
-#
-# CONFIG_AIRO is not set
-CONFIG_HERMES=m
-# CONFIG_PLX_HERMES is not set
-# CONFIG_TMD_HERMES is not set
-# CONFIG_PCI_HERMES is not set
-
-#
-# Wireless 802.11b Pcmcia/Cardbus cards support
-#
-CONFIG_PCMCIA_HERMES=m
-# CONFIG_AIRO_CS is not set
-# CONFIG_PCMCIA_ATMEL is not set
-# CONFIG_PCMCIA_WL3501 is not set
-CONFIG_NET_WIRELESS=y
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-# CONFIG_RCPCI is not set
-# CONFIG_SHAPER is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-
-#
-# PCMCIA network device support
-#
-# CONFIG_NET_PCMCIA is not set
-
-#
-# Amateur Radio support
-#
-# CONFIG_HAMRADIO is not set
-
-#
-# IrDA (infrared) support
-#
-# CONFIG_IRDA is not set
-
-#
-# Bluetooth support
-#
-# CONFIG_BT is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN_BOOL is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-# CONFIG_INPUT is not set
-
-#
-# Userland interfaces
-#
-
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-# CONFIG_SERIO is not set
-# CONFIG_SERIO_I8042 is not set
-
-#
-# Input Device Drivers
-#
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL is not set
-CONFIG_SH_SCI=y
-CONFIG_SERIAL_CONSOLE=y
-CONFIG_RTC_9701JE=y
-
-#
-# Unix 98 PTY support
-#
-# CONFIG_UNIX98_PTYS is not set
-CONFIG_HEARTBEAT=y
-# CONFIG_PSMOUSE is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_RTC is not set
-
-#
-# PCMCIA character devices
-#
-# CONFIG_SYNCLINK_CS is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-# CONFIG_SERIAL_SH_SCI is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# I2C Algorithms
-#
-
-#
-# I2C Hardware Bus support
-#
-
-#
-# I2C Hardware Sensors Chip support
-#
-# CONFIG_I2C_SENSOR is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-CONFIG_MINIX_FS=y
-# CONFIG_ROMFS_FS is not set
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=y
-CONFIG_MSDOS_FS=y
-CONFIG_VFAT_FS=y
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_TMPFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-# CONFIG_NFS_FS is not set
-# CONFIG_NFSD is not set
-# CONFIG_EXPORTFS is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_INTERMEZZO_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-CONFIG_NLS=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS_DEFAULT="iso8859-1"
-# CONFIG_NLS_CODEPAGE_437 is not set
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-# CONFIG_NLS_CODEPAGE_850 is not set
-# CONFIG_NLS_CODEPAGE_852 is not set
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-# CONFIG_NLS_CODEPAGE_863 is not set
-# CONFIG_NLS_CODEPAGE_864 is not set
-# CONFIG_NLS_CODEPAGE_865 is not set
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-CONFIG_NLS_CODEPAGE_932=y
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-# CONFIG_NLS_ISO8859_1 is not set
-# CONFIG_NLS_ISO8859_2 is not set
-# CONFIG_NLS_ISO8859_3 is not set
-# CONFIG_NLS_ISO8859_4 is not set
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-# CONFIG_NLS_ISO8859_15 is not set
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-# CONFIG_NLS_UTF8 is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-CONFIG_SOUND=y
-
-#
-# Advanced Linux Sound Architecture
-#
-CONFIG_SND=m
-# CONFIG_SND_SEQUENCER is not set
-# CONFIG_SND_OSSEMUL is not set
-# CONFIG_SND_VERBOSE_PRINTK is not set
-# CONFIG_SND_DEBUG is not set
-
-#
-# Generic devices
-#
-# CONFIG_SND_DUMMY is not set
-# CONFIG_SND_MTPAV is not set
-# CONFIG_SND_SERIAL_U16550 is not set
-# CONFIG_SND_MPU401 is not set
-
-#
-# ISA devices
-#
-# CONFIG_SND_AD1848 is not set
-# CONFIG_SND_CS4231 is not set
-# CONFIG_SND_CS4232 is not set
-# CONFIG_SND_CS4236 is not set
-# CONFIG_SND_ES1688 is not set
-# CONFIG_SND_ES18XX is not set
-# CONFIG_SND_GUSCLASSIC is not set
-# CONFIG_SND_GUSEXTREME is not set
-# CONFIG_SND_GUSMAX is not set
-# CONFIG_SND_INTERWAVE is not set
-# CONFIG_SND_INTERWAVE_STB is not set
-# CONFIG_SND_OPTI92X_AD1848 is not set
-# CONFIG_SND_OPTI92X_CS4231 is not set
-# CONFIG_SND_OPTI93X is not set
-# CONFIG_SND_SB8 is not set
-# CONFIG_SND_SB16 is not set
-# CONFIG_SND_SBAWE is not set
-# CONFIG_SND_WAVEFRONT is not set
-# CONFIG_SND_CMI8330 is not set
-# CONFIG_SND_OPL3SA2 is not set
-# CONFIG_SND_SGALAXY is not set
-# CONFIG_SND_SSCAPE is not set
-
-#
-# PCI devices
-#
-# CONFIG_SND_ALI5451 is not set
-# CONFIG_SND_AZT3328 is not set
-# CONFIG_SND_CS46XX is not set
-# CONFIG_SND_CS4281 is not set
-# CONFIG_SND_EMU10K1 is not set
-# CONFIG_SND_KORG1212 is not set
-# CONFIG_SND_NM256 is not set
-# CONFIG_SND_RME32 is not set
-# CONFIG_SND_RME96 is not set
-# CONFIG_SND_RME9652 is not set
-# CONFIG_SND_HDSP is not set
-# CONFIG_SND_TRIDENT is not set
-CONFIG_SND_YMFPCI=m
-# CONFIG_SND_ALS4000 is not set
-# CONFIG_SND_CMIPCI is not set
-# CONFIG_SND_ENS1370 is not set
-# CONFIG_SND_ENS1371 is not set
-# CONFIG_SND_ES1938 is not set
-# CONFIG_SND_ES1968 is not set
-# CONFIG_SND_MAESTRO3 is not set
-# CONFIG_SND_FM801 is not set
-# CONFIG_SND_ICE1712 is not set
-# CONFIG_SND_ICE1724 is not set
-# CONFIG_SND_INTEL8X0 is not set
-# CONFIG_SND_SONICVIBES is not set
-# CONFIG_SND_VIA82XX is not set
-# CONFIG_SND_VX222 is not set
-
-#
-# PCMCIA devices
-#
-# CONFIG_SND_VXPOCKET is not set
-# CONFIG_SND_VXP440 is not set
-
-#
-# Open Sound System
-#
-CONFIG_SOUND_PRIME=m
-# CONFIG_SOUND_BT878 is not set
-CONFIG_SOUND_CMPCI=m
-# CONFIG_SOUND_CMPCI_FM is not set
-# CONFIG_SOUND_CMPCI_MIDI is not set
-# CONFIG_SOUND_CMPCI_JOYSTICK is not set
-# CONFIG_SOUND_CMPCI_CM8738 is not set
-# CONFIG_SOUND_EMU10K1 is not set
-# CONFIG_SOUND_FUSION is not set
-# CONFIG_SOUND_CS4281 is not set
-# CONFIG_SOUND_ES1370 is not set
-# CONFIG_SOUND_ES1371 is not set
-# CONFIG_SOUND_ESSSOLO1 is not set
-# CONFIG_SOUND_MAESTRO is not set
-# CONFIG_SOUND_MAESTRO3 is not set
-# CONFIG_SOUND_ICH is not set
-# CONFIG_SOUND_SONICVIBES is not set
-# CONFIG_SOUND_TRIDENT is not set
-# CONFIG_SOUND_MSNDCLAS is not set
-# CONFIG_SOUND_MSNDPIN is not set
-# CONFIG_SOUND_VIA82CXXX is not set
-# CONFIG_SOUND_OSS is not set
-# CONFIG_SOUND_ALI5455 is not set
-# CONFIG_SOUND_FORTE is not set
-# CONFIG_SOUND_RME96XX is not set
-# CONFIG_SOUND_AD1980 is not set
-CONFIG_SOUND_VOYAGERGX=m
-
-#
-# USB support
-#
-# CONFIG_USB is not set
-# CONFIG_USB_GADGET is not set
-
-#
-# Profiling support
-#
-# CONFIG_PROFILING is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_SH_STANDARD_BIOS is not set
-# CONFIG_KGDB is not set
-# CONFIG_FRAME_POINTER is not set
-
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_CRC32=y
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_SUPERH=y
-CONFIG_UID16=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
-CONFIG_STANDALONE=y
-CONFIG_BROKEN_ON_SMP=y
-
-#
-# General setup
-#
-# CONFIG_SWAP is not set
-# CONFIG_SYSVIPC is not set
-# CONFIG_POSIX_MQUEUE is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-# CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_EMBEDDED=y
-# CONFIG_KALLSYMS is not set
-# CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
-CONFIG_IOSCHED_NOOP=y
-# CONFIG_IOSCHED_AS is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-
-#
-# Loadable module support
-#
-# CONFIG_MODULES is not set
-
-#
-# System type
-#
-# CONFIG_SH_SOLUTION_ENGINE is not set
-# CONFIG_SH_7751_SOLUTION_ENGINE is not set
-CONFIG_SH_7300_SOLUTION_ENGINE=y
-# CONFIG_SH_7751_SYSTEMH is not set
-# CONFIG_SH_STB1_HARP is not set
-# CONFIG_SH_STB1_OVERDRIVE is not set
-# CONFIG_SH_HP620 is not set
-# CONFIG_SH_HP680 is not set
-# CONFIG_SH_HP690 is not set
-# CONFIG_SH_CQREEK is not set
-# CONFIG_SH_DMIDA is not set
-# CONFIG_SH_EC3104 is not set
-# CONFIG_SH_SATURN is not set
-# CONFIG_SH_DREAMCAST is not set
-# CONFIG_SH_CAT68701 is not set
-# CONFIG_SH_BIGSUR is not set
-# CONFIG_SH_SH2000 is not set
-# CONFIG_SH_ADX is not set
-# CONFIG_SH_MPC1211 is not set
-# CONFIG_SH_SECUREEDGE5410 is not set
-# CONFIG_SH_HS7751RVOIP is not set
-# CONFIG_SH_RTS7751R2D is not set
-# CONFIG_SH_UNKNOWN is not set
-# CONFIG_CPU_SH2 is not set
-CONFIG_CPU_SH3=y
-# CONFIG_CPU_SH4 is not set
-# CONFIG_CPU_SUBTYPE_SH7604 is not set
-CONFIG_CPU_SUBTYPE_SH7300=y
-# CONFIG_CPU_SUBTYPE_SH7707 is not set
-# CONFIG_CPU_SUBTYPE_SH7708 is not set
-# CONFIG_CPU_SUBTYPE_SH7709 is not set
-# CONFIG_CPU_SUBTYPE_SH7750 is not set
-# CONFIG_CPU_SUBTYPE_SH7751 is not set
-# CONFIG_CPU_SUBTYPE_SH7760 is not set
-# CONFIG_CPU_SUBTYPE_ST40STB1 is not set
-# CONFIG_CPU_SUBTYPE_ST40GX1 is not set
-CONFIG_MMU=y
-CONFIG_CMDLINE_BOOL=y
-CONFIG_CMDLINE="console=ttySC0,38400 root=/dev/ram0"
-CONFIG_MEMORY_START=0x0c000000
-CONFIG_MEMORY_SIZE=0x04000000
-# CONFIG_MEMORY_OVERRIDE is not set
-CONFIG_SH_DSP=y
-# CONFIG_SH_ADC is not set
-CONFIG_ZERO_PAGE_OFFSET=0x00001000
-CONFIG_BOOT_LINK_OFFSET=0x00210000
-CONFIG_CPU_LITTLE_ENDIAN=y
-# CONFIG_PREEMPT is not set
-# CONFIG_UBC_WAKEUP is not set
-# CONFIG_SH_WRITETHROUGH is not set
-# CONFIG_SH_OCRAM is not set
-# CONFIG_SMP is not set
-# CONFIG_SH_PCLK_CALC is not set
-CONFIG_SH_PCLK_FREQ=33333333
-
-#
-# CPU Frequency scaling
-#
-# CONFIG_CPU_FREQ is not set
-
-#
-# DMA support
-#
-# CONFIG_SH_DMA is not set
-
-#
-# Companion Chips
-#
-# CONFIG_HD6446X_SERIES is not set
-CONFIG_HEARTBEAT=y
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-# CONFIG_PCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# SH initrd options
-#
-CONFIG_EMBEDDED_RAMDISK=y
-CONFIG_EMBEDDED_RAMDISK_IMAGE="ramdisk.gz"
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_DEV_LOOP is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_LBD is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-
-#
-# Networking support
-#
-# CONFIG_NET is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-# CONFIG_SERIO_SERPORT is not set
-# CONFIG_SERIO_CT82C710 is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_UNIX98_PTYS is not set
-# CONFIG_LEGACY_PTYS is not set
-# CONFIG_QIC02_TAPE is not set
-
-#
-# IPMI
-#
-CONFIG_IPMI_HANDLER=y
-# CONFIG_IPMI_PANIC_EVENT is not set
-CONFIG_IPMI_DEVICE_INTERFACE=y
-# CONFIG_IPMI_SI is not set
-CONFIG_IPMI_WATCHDOG=y
-
-#
-# Watchdog Cards
-#
-CONFIG_WATCHDOG=y
-# CONFIG_WATCHDOG_NOWAYOUT is not set
-
-#
-# Watchdog Device Drivers
-#
-CONFIG_SOFT_WATCHDOG=y
-# CONFIG_SH_WDT is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# Misc devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_FAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_SYSFS=y
-CONFIG_DEVFS_FS=y
-CONFIG_DEVFS_MOUNT=y
-# CONFIG_DEVFS_DEBUG is not set
-# CONFIG_TMPFS is not set
-# CONFIG_HUGETLBFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Profiling support
-#
-# CONFIG_PROFILING is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_INFO is not set
-CONFIG_SH_STANDARD_BIOS=y
-CONFIG_EARLY_PRINTK=y
-CONFIG_KGDB=y
-
-#
-# KGDB configuration options
-#
-# CONFIG_MORE_COMPILE_OPTIONS is not set
-# CONFIG_KGDB_NMI is not set
-# CONFIG_KGDB_THREAD is not set
-# CONFIG_SH_KGDB_CONSOLE is not set
-# CONFIG_KGDB_SYSRQ is not set
-# CONFIG_KGDB_KERNEL_ASSERTS is not set
-
-#
-# Serial port setup
-#
-CONFIG_KGDB_DEFPORT=1
-CONFIG_KGDB_DEFBAUD=115200
-CONFIG_KGDB_DEFPARITY_N=y
-# CONFIG_KGDB_DEFPARITY_E is not set
-# CONFIG_KGDB_DEFPARITY_O is not set
-CONFIG_KGDB_DEFBITS_8=y
-# CONFIG_KGDB_DEFBITS_7 is not set
-# CONFIG_FRAME_POINTER is not set
-
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_CRC32=y
-# CONFIG_LIBCRC32C is not set
+++ /dev/null
-/*
- * arch/sh/drivers/dma/dma-sysfs.c
- *
- * sysfs interface for SH DMA API
- *
- * Copyright (C) 2004 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/sysdev.h>
-#include <linux/module.h>
-#include <asm/dma.h>
-
-static struct sysdev_class dma_sysclass = {
- set_kset_name("dma"),
-};
-
-EXPORT_SYMBOL(dma_sysclass);
-
-static ssize_t dma_show_devices(struct sys_device *dev, char *buf)
-{
- ssize_t len = 0;
- int i;
-
- for (i = 0; i < MAX_DMA_CHANNELS; i++) {
- struct dma_info *info = get_dma_info(i);
- struct dma_channel *channel = &info->channels[i];
-
- len += sprintf(buf + len, "%2d: %14s %s\n",
- channel->chan, info->name,
- channel->dev_id);
- }
-
- return len;
-}
-
-static SYSDEV_ATTR(devices, S_IRUGO, dma_show_devices, NULL);
-
-static int __init dma_sysclass_init(void)
-{
- int ret;
-
- ret = sysdev_class_register(&dma_sysclass);
- if (ret == 0)
- sysfs_create_file(&dma_sysclass.kset.kobj, &attr_devices.attr);
-
- return ret;
-}
-
-postcore_initcall(dma_sysclass_init);
-
-static ssize_t dma_show_dev_id(struct sys_device *dev, char *buf)
-{
- struct dma_channel *channel = to_dma_channel(dev);
- return sprintf(buf, "%s\n", channel->dev_id);
-}
-
-static ssize_t dma_store_dev_id(struct sys_device *dev,
- const char *buf, size_t count)
-{
- struct dma_channel *channel = to_dma_channel(dev);
- strcpy(channel->dev_id, buf);
- return count;
-}
-
-static SYSDEV_ATTR(dev_id, S_IRUGO | S_IWUSR, dma_show_dev_id, dma_store_dev_id);
-
-static ssize_t dma_store_config(struct sys_device *dev,
- const char *buf, size_t count)
-{
- struct dma_channel *channel = to_dma_channel(dev);
- unsigned long config;
-
- config = simple_strtoul(buf, NULL, 0);
- dma_configure_channel(channel->chan, config);
-
- return count;
-}
-
-static SYSDEV_ATTR(config, S_IWUSR, NULL, dma_store_config);
-
-static ssize_t dma_show_mode(struct sys_device *dev, char *buf)
-{
- struct dma_channel *channel = to_dma_channel(dev);
- return sprintf(buf, "0x%08x\n", channel->mode);
-}
-
-static ssize_t dma_store_mode(struct sys_device *dev,
- const char *buf, size_t count)
-{
- struct dma_channel *channel = to_dma_channel(dev);
- channel->mode = simple_strtoul(buf, NULL, 0);
- return count;
-}
-
-static SYSDEV_ATTR(mode, S_IRUGO | S_IWUSR, dma_show_mode, dma_store_mode);
-
-#define dma_ro_attr(field, fmt) \
-static ssize_t dma_show_##field(struct sys_device *dev, char *buf) \
-{ \
- struct dma_channel *channel = to_dma_channel(dev); \
- return sprintf(buf, fmt, channel->field); \
-} \
-static SYSDEV_ATTR(field, S_IRUGO, dma_show_##field, NULL);
-
-dma_ro_attr(count, "0x%08x\n");
-dma_ro_attr(flags, "0x%08lx\n");
-
-int __init dma_create_sysfs_files(struct dma_channel *chan)
-{
- struct sys_device *dev = &chan->dev;
- int ret;
-
- dev->id = chan->chan;
- dev->cls = &dma_sysclass;
-
- ret = sysdev_register(dev);
- if (ret)
- return ret;
-
- sysdev_create_file(dev, &attr_dev_id);
- sysdev_create_file(dev, &attr_count);
- sysdev_create_file(dev, &attr_mode);
- sysdev_create_file(dev, &attr_flags);
- sysdev_create_file(dev, &attr_config);
-
- return 0;
-}
-
+++ /dev/null
-/*
- * arch/sh/drivers/pci/fixups-rts7751r2d.c
- *
- * RTS7751R2D PCI fixups
- *
- * Copyright (C) 2003 Lineo uSolutions, Inc.
- * Copyright (C) 2004 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include "pci-sh7751.h"
-#include <asm/io.h>
-
-#define PCIMCR_MRSET_OFF 0xBFFFFFFF
-#define PCIMCR_RFSH_OFF 0xFFFFFFFB
-
-int pci_fixup_pcic(void)
-{
- unsigned long mcr;
-
- outl(0xfb900047, SH7751_PCICONF1);
- outl(0xab000001, SH7751_PCICONF4);
-
- mcr = inl(SH7751_MCR);
- mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
- outl(mcr, SH7751_PCIMCR);
-
- return 0;
-}
-
+++ /dev/null
-/*
- * linux/arch/sh/kernel/pci-rts7751r2d.c
- *
- * Author: Ian DaSilva (idasilva@mvista.com)
- *
- * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * PCI initialization for the Renesas SH7751R RTS7751R2D board
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/module.h>
-
-#include <asm/io.h>
-#include "pci-sh7751.h"
-#include <asm/rts7751r2d/rts7751r2d.h>
-
-int __init pcibios_map_platform_irq(u8 slot, u8 pin)
-{
- switch (slot) {
- case 0: return IRQ_PCISLOT1; /* PCI Extend slot #1 */
- case 1: return IRQ_PCISLOT2; /* PCI Extend slot #2 */
- case 2: return IRQ_PCMCIA; /* PCI Cardbus Bridge */
- case 3: return IRQ_PCIETH; /* Realtek Ethernet controller */
- default:
- printk("PCI: Bad IRQ mapping request for slot %d\n", slot);
- return -1;
- }
-}
-
-static struct resource sh7751_io_resource = {
- .name = "SH7751_IO",
- .start = 0x4000,
- .end = 0x4000 + SH7751_PCI_IO_SIZE - 1,
- .flags = IORESOURCE_IO
-};
-
-static struct resource sh7751_mem_resource = {
- .name = "SH7751_mem",
- .start = SH7751_PCI_MEMORY_BASE,
- .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
- .flags = IORESOURCE_MEM
-};
-
-extern struct pci_ops sh7751_pci_ops;
-
-struct pci_channel board_pci_channels[] = {
- { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
- { NULL, NULL, NULL, 0, 0 },
-};
-EXPORT_SYMBOL(board_pci_channels);
-
-static struct sh7751_pci_address_map sh7751_pci_map = {
- .window0 = {
- .base = SH7751_CS3_BASE_ADDR,
- .size = 0x03f00000,
- },
-
- .flags = SH7751_PCIC_NO_RESET,
-};
-
-int __init pcibios_init_platform(void)
-{
- return sh7751_pcic_init(&sh7751_pci_map);
-}
-
+++ /dev/null
-/*
- * linux/arch/sh/kernel/adc.c -- SH3 on-chip ADC support
- *
- * Copyright (C) 2004 Andriy Skulysh <askulysh@image.kiev.ua>
- */
-
-#include <linux/module.h>
-#include <asm/adc.h>
-#include <asm/io.h>
-
-
-int adc_single(unsigned int channel)
-{
- int off;
- unsigned char csr;
-
- if (channel >= 8) return -1;
-
- off = (channel & 0x03) << 2;
-
- csr = ctrl_inb(ADCSR);
- csr = channel | ADCSR_ADST | ADCSR_CKS;
- ctrl_outb(csr, ADCSR);
-
- do {
- csr = ctrl_inb(ADCSR);
- } while ((csr & ADCSR_ADF) == 0);
-
- csr &= ~(ADCSR_ADF | ADCSR_ADST);
- ctrl_outb(csr, ADCSR);
-
- return (((ctrl_inb(ADDRAH + off) << 8) |
- ctrl_inb(ADDRAL + off)) >> 6);
-}
-
-EXPORT_SYMBOL(adc_single);
+++ /dev/null
-/*
- * arch/sh/kernel/cpu/bus.c
- *
- * Virtual bus for SuperH.
- *
- * Copyright (C) 2004 Paul Mundt
- *
- * Shamelessly cloned from arch/arm/mach-omap/bus.c, which was written
- * by:
- *
- * Copyright (C) 2003 - 2004 Nokia Corporation
- * Written by Tony Lindgren <tony@atomide.com>
- * Portions of code based on sa1111.c.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <asm/bus-sh.h>
-
-static int sh_bus_match(struct device *dev, struct device_driver *drv)
-{
- struct sh_driver *shdrv = to_sh_driver(drv);
- struct sh_dev *shdev = to_sh_dev(dev);
-
- return shdev->dev_id == shdrv->dev_id;
-}
-
-static int sh_bus_suspend(struct device *dev, u32 state)
-{
- struct sh_dev *shdev = to_sh_dev(dev);
- struct sh_driver *shdrv = to_sh_driver(dev->driver);
-
- if (shdrv && shdrv->suspend)
- return shdrv->suspend(shdev, state);
-
- return 0;
-}
-
-static int sh_bus_resume(struct device *dev)
-{
- struct sh_dev *shdev = to_sh_dev(dev);
- struct sh_driver *shdrv = to_sh_driver(dev->driver);
-
- if (shdrv && shdrv->resume)
- return shdrv->resume(shdev);
-
- return 0;
-}
-
-static struct device sh_bus_devices[SH_NR_BUSES] = {
- {
- .bus_id = SH_BUS_NAME_VIRT,
- },
-};
-
-struct bus_type sh_bus_types[SH_NR_BUSES] = {
- {
- .name = SH_BUS_NAME_VIRT,
- .match = sh_bus_match,
- .suspend = sh_bus_suspend,
- .resume = sh_bus_resume,
- },
-};
-
-static int sh_device_probe(struct device *dev)
-{
- struct sh_dev *shdev = to_sh_dev(dev);
- struct sh_driver *shdrv = to_sh_driver(dev->driver);
-
- if (shdrv && shdrv->probe)
- return shdrv->probe(shdev);
-
- return -ENODEV;
-}
-
-static int sh_device_remove(struct device *dev)
-{
- struct sh_dev *shdev = to_sh_dev(dev);
- struct sh_driver *shdrv = to_sh_driver(dev->driver);
-
- if (shdrv && shdrv->remove)
- return shdrv->remove(shdev);
-
- return 0;
-}
-
-int sh_device_register(struct sh_dev *dev)
-{
- if (!dev)
- return -EINVAL;
-
- if (dev->bus_id < 0 || dev->bus_id >= SH_NR_BUSES) {
- printk(KERN_ERR "%s: bus_id invalid: %s bus: %d\n",
- __FUNCTION__, dev->name, dev->bus_id);
- return -EINVAL;
- }
-
- dev->dev.parent = &sh_bus_devices[dev->bus_id];
- dev->dev.bus = &sh_bus_types[dev->bus_id];
-
- /* This is needed for USB OHCI to work */
- if (dev->dma_mask)
- dev->dev.dma_mask = dev->dma_mask;
-
- snprintf(dev->dev.bus_id, BUS_ID_SIZE, "%s%u",
- dev->name, dev->dev_id);
-
- printk(KERN_INFO "Registering SH device '%s'. Parent at %s\n",
- dev->dev.bus_id, dev->dev.parent->bus_id);
-
- return device_register(&dev->dev);
-}
-
-void sh_device_unregister(struct sh_dev *dev)
-{
- device_unregister(&dev->dev);
-}
-
-int sh_driver_register(struct sh_driver *drv)
-{
- if (!drv)
- return -EINVAL;
-
- if (drv->bus_id < 0 || drv->bus_id >= SH_NR_BUSES) {
- printk(KERN_ERR "%s: bus_id invalid: bus: %d device %d\n",
- __FUNCTION__, drv->bus_id, drv->dev_id);
- return -EINVAL;
- }
-
- drv->drv.probe = sh_device_probe;
- drv->drv.remove = sh_device_remove;
- drv->drv.bus = &sh_bus_types[drv->bus_id];
-
- return driver_register(&drv->drv);
-}
-
-void sh_driver_unregister(struct sh_driver *drv)
-{
- driver_unregister(&drv->drv);
-}
-
-static int __init sh_bus_init(void)
-{
- int i, ret = 0;
-
- for (i = 0; i < SH_NR_BUSES; i++) {
- ret = device_register(&sh_bus_devices[i]);
- if (ret != 0) {
- printk(KERN_ERR "Unable to register bus device %s\n",
- sh_bus_devices[i].bus_id);
- continue;
- }
-
- ret = bus_register(&sh_bus_types[i]);
- if (ret != 0) {
- printk(KERN_ERR "Unable to register bus %s\n",
- sh_bus_types[i].name);
- device_unregister(&sh_bus_devices[i]);
- }
- }
-
- printk(KERN_INFO "SH Virtual Bus initialized\n");
-
- return ret;
-}
-
-static void __exit sh_bus_exit(void)
-{
- int i;
-
- for (i = 0; i < SH_NR_BUSES; i++) {
- bus_unregister(&sh_bus_types[i]);
- device_unregister(&sh_bus_devices[i]);
- }
-}
-
-module_init(sh_bus_init);
-module_exit(sh_bus_exit);
-
-MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>");
-MODULE_DESCRIPTION("SH Virtual Bus");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(sh_bus_types);
-EXPORT_SYMBOL(sh_device_register);
-EXPORT_SYMBOL(sh_device_unregister);
-EXPORT_SYMBOL(sh_driver_register);
-EXPORT_SYMBOL(sh_driver_unregister);
-
+++ /dev/null
-/*
- * arch/sh/kernel/early_printk.c
- *
- * Copyright (C) 1999, 2000 Niibe Yutaka
- * Copyright (C) 2002 M. R. Brown
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/console.h>
-#include <linux/tty.h>
-#include <linux/init.h>
-#include <asm/io.h>
-
-#ifdef CONFIG_SH_STANDARD_BIOS
-#include <asm/sh_bios.h>
-
-/*
- * Print a string through the BIOS
- */
-static void sh_console_write(struct console *co, const char *s,
- unsigned count)
-{
- sh_bios_console_write(s, count);
-}
-
-/*
- * Setup initial baud/bits/parity. We do two things here:
- * - construct a cflag setting for the first rs_open()
- * - initialize the serial port
- * Return non-zero if we didn't find a serial port.
- */
-static int __init sh_console_setup(struct console *co, char *options)
-{
- int cflag = CREAD | HUPCL | CLOCAL;
-
- /*
- * Now construct a cflag setting.
- * TODO: this is a totally bogus cflag, as we have
- * no idea what serial settings the BIOS is using, or
- * even if its using the serial port at all.
- */
- cflag |= B115200 | CS8 | /*no parity*/0;
-
- co->cflag = cflag;
-
- return 0;
-}
-
-static struct console early_console = {
- .name = "bios",
- .write = sh_console_write,
- .setup = sh_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-#endif
-
-#ifdef CONFIG_EARLY_SCIF_CONSOLE
-#define SCIF_REG 0xffe80000
-
-static void scif_sercon_putc(int c)
-{
- while (!(ctrl_inw(SCIF_REG + 0x10) & 0x20)) ;
-
- ctrl_outb(c, SCIF_REG + 12);
- ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0x9f), SCIF_REG + 0x10);
-
- if (c == '\n')
- scif_sercon_putc('\r');
-}
-
-static void scif_sercon_flush(void)
-{
- ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0xbf), SCIF_REG + 0x10);
-
- while (!(ctrl_inw(SCIF_REG + 0x10) & 0x40)) ;
-
- ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0xbf), SCIF_REG + 0x10);
-}
-
-static void scif_sercon_write(struct console *con, const char *s, unsigned count)
-{
- while (count-- > 0)
- scif_sercon_putc(*s++);
-
- scif_sercon_flush();
-}
-
-static int __init scif_sercon_setup(struct console *con, char *options)
-{
- con->cflag = CREAD | HUPCL | CLOCAL | B115200 | CS8;
-
- return 0;
-}
-
-static struct console early_console = {
- .name = "sercon",
- .write = scif_sercon_write,
- .setup = scif_sercon_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-void scif_sercon_init(int baud)
-{
- ctrl_outw(0, SCIF_REG + 8);
- ctrl_outw(0, SCIF_REG);
-
- /* Set baud rate */
- ctrl_outb((50000000 / (32 * baud)) - 1, SCIF_REG + 4);
-
- ctrl_outw(12, SCIF_REG + 24);
- ctrl_outw(8, SCIF_REG + 24);
- ctrl_outw(0, SCIF_REG + 32);
- ctrl_outw(0x60, SCIF_REG + 16);
- ctrl_outw(0, SCIF_REG + 36);
- ctrl_outw(0x30, SCIF_REG + 8);
-}
-#endif
-
-void __init enable_early_printk(void)
-{
-#ifdef CONFIG_EARLY_SCIF_CONSOLE
- scif_sercon_init(115200);
-#endif
- register_console(&early_console);
-}
-
-void disable_early_printk(void)
-{
- unregister_console(&early_console);
-}
-
+++ /dev/null
-#
-# Makefile for a ramdisk image
-#
-
-obj-y += ramdisk.o
-
-
-O_FORMAT = $(shell $(OBJDUMP) -i | head -n 2 | grep elf32)
-img := $(subst ",,$(CONFIG_EMBEDDED_RAMDISK_IMAGE))
-# add $(src) when $(img) is relative
-img := $(subst $(src)//,/,$(src)/$(img))
-
-quiet_cmd_ramdisk = LD $@
-define cmd_ramdisk
- $(LD) -T $(src)/ld.script -b binary --oformat $(O_FORMAT) -o $@ $(img)
-endef
-
-$(obj)/ramdisk.o: $(img) $(src)/ld.script
- $(call cmd,ramdisk)
+++ /dev/null
-OUTPUT_ARCH(sh)
-SECTIONS
-{
- .initrd :
- {
- *(.data)
- }
-}
-
+++ /dev/null
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/config-language.txt.
-#
-
-mainmenu "Linux/SH64 Kernel Configuration"
-
-config SUPERH
- bool
- default y
-
-config SUPERH64
- bool
- default y
-
-config MMU
- bool
- default y
-
-config UID16
- bool
- default y
-
-config RWSEM_GENERIC_SPINLOCK
- bool
- default y
-
-config LOG_BUF_SHIFT
- int
- default 14
-
-config RWSEM_XCHGADD_ALGORITHM
- bool
-
-config GENERIC_ISA_DMA
- bool
-
-source init/Kconfig
-
-menu "System type"
-
-choice
- prompt "SuperH system type"
- default SH_SIMULATOR
-
-config SH_GENERIC
- bool "Generic"
-
-config SH_SIMULATOR
- bool "Simulator"
-
-config SH_CAYMAN
- bool "Cayman"
-
-config SH_ROMRAM
- bool "ROM/RAM"
-
-config SH_HARP
- bool "ST50-Harp"
-
-endchoice
-
-choice
- prompt "Processor family"
- default CPU_SH5
-
-config CPU_SH5
- bool "SH-5"
-
-endchoice
-
-choice
- prompt "Processor type"
-
-config CPU_SUBTYPE_SH5_101
- bool "SH5-101"
- depends on CPU_SH5
-
-config CPU_SUBTYPE_SH5_103
- bool "SH5-103"
- depends on CPU_SH5
-
-endchoice
-
-choice
- prompt "Endianness"
- default LITTLE_ENDIAN
-
-config LITTLE_ENDIAN
- bool "Little-Endian"
-
-config BIG_ENDIAN
- bool "Big-Endian"
-
-endchoice
-
-config SH64_FPU_DENORM_FLUSH
- bool "Flush floating point denorms to zero"
-
-choice
- prompt "Page table levels"
- default SH64_PGTABLE_2_LEVEL
-
-config SH64_PGTABLE_2_LEVEL
- bool "2"
-
-config SH64_PGTABLE_3_LEVEL
- bool "3"
-
-endchoice
-
-choice
- prompt "HugeTLB page size"
- depends on HUGETLB_PAGE && MMU
- default HUGETLB_PAGE_SIZE_64K
-
-config HUGETLB_PAGE_SIZE_64K
- bool "64K"
-
-config HUGETLB_PAGE_SIZE_1MB
- bool "1MB"
-
-config HUGETLB_PAGE_SIZE_512MB
- bool "512MB"
-
-endchoice
-
-config SH64_USER_MISALIGNED_FIXUP
- bool "Fixup misaligned loads/stores occurring in user mode"
-
-comment "Memory options"
-
-config CACHED_MEMORY_OFFSET
- hex "Cached Area Offset"
- depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
- default "20000000"
-
-config MEMORY_START
- hex "Physical memory start address"
- depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
- default "80000000"
-
-config MEMORY_SIZE_IN_MB
- int "Memory size (in MB)" if SH_HARP || SH_CAYMAN || SH_SIMULATOR
- default "64" if SH_HARP || SH_CAYMAN
- default "8" if SH_SIMULATOR
-
-comment "Cache options"
-
-config DCACHE_DISABLED
- bool "DCache Disabling"
- depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
-
-choice
- prompt "DCache mode"
- depends on !DCACHE_DISABLED && !SH_SIMULATOR
- default DCACHE_WRITE_BACK
-
-config DCACHE_WRITE_BACK
- bool "Write-back"
-
-config DCACHE_WRITE_THROUGH
- bool "Write-through"
-
-endchoice
-
-config ICACHE_DISABLED
- bool "ICache Disabling"
- depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
-
-config PCIDEVICE_MEMORY_START
- hex
- depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
- default "C0000000"
-
-config DEVICE_MEMORY_START
- hex
- depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
- default "E0000000"
-
-config FLASH_MEMORY_START
- hex "Flash memory/on-chip devices start address"
- depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
- default "00000000"
-
-config PCI_BLOCK_START
- hex "PCI block start address"
- depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
- default "40000000"
-
-comment "CPU Subtype specific options"
-
-config SH64_ID2815_WORKAROUND
- bool "Include workaround for SH5-101 cut2 silicon defect ID2815"
-
-comment "Misc options"
-config HEARTBEAT
- bool "Heartbeat LED"
-
-config HDSP253_LED
- bool "Support for HDSP-253 LED"
- depends on SH_CAYMAN
-
-config SH_DMA
- tristate "DMA controller (DMAC) support"
-
-config PREEMPT
- bool "Preemptible Kernel (EXPERIMENTAL)"
- depends on EXPERIMENTAL
-
-endmenu
-
-menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
-
-config ISA
- bool
-
-config SBUS
- bool
-
-config PCI
- bool "PCI support"
- help
- Find out whether you have a PCI motherboard. PCI is the name of a
- bus system, i.e. the way the CPU talks to the other stuff inside
- your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
- VESA. If you have PCI, say Y, otherwise N.
-
- The PCI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, contains valuable
- information about which PCI hardware does work under Linux and which
- doesn't.
-
-config SH_PCIDMA_NONCOHERENT
- bool "Cache and PCI noncoherent"
- depends on PCI
- default y
- help
- Enable this option if your platform does not have a CPU cache which
- remains coherent with PCI DMA. It is safest to say 'Y', although you
- will see better performance if you can say 'N', because the PCI DMA
- code will not have to flush the CPU's caches. If you have a PCI host
- bridge integrated with your SH CPU, refer carefully to the chip specs
- to see if you can say 'N' here. Otherwise, leave it as 'Y'.
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-source "drivers/pci/hotplug/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/sh64/oprofile/Kconfig"
-
-menu "Kernel hacking"
-
-config MAGIC_SYSRQ
- bool "Magic SysRq key"
- help
- If you say Y here, you will have some control over the system even
- if the system crashes for example during kernel debugging (e.g., you
- will be able to flush the buffer cache to disk, reboot the system
- immediately or dump some status information). This is accomplished
- by pressing various keys while holding SysRq (Alt+PrintScreen). It
- also works on a serial console (on PC hardware at least), if you
- send a BREAK and then within 5 seconds a command keypress. The
- keys are documented in Documentation/sysrq.txt. Don't say Y unless
- you really know what this hack does.
-
-config EARLY_PRINTK
- bool "Early SCIF console support"
-
-config DEBUG_KERNEL_WITH_GDB_STUB
- bool "GDB Stub kernel debug"
-
-config SH64_PROC_TLB
- bool "Debug: report TLB fill/purge activity through /proc/tlb"
- depends on PROC_FS
-
-config SH64_PROC_ASIDS
- bool "Debug: report ASIDs through /proc/asids"
- depends on PROC_FS
-
-config SH64_SR_WATCH
- bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
-
-config SH_ALPHANUMERIC
- bool "Enable debug outputs to on-board alphanumeric display"
-
-config SH_NO_BSS_INIT
- bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
-
-config FRAME_POINTER
- bool "Compile the kernel with frame pointers"
- default y if KGDB
- help
- If you say Y here the resulting kernel image will be slightly larger
- and slower, but it will give very useful debugging information.
- If you don't debug the kernel, you can say N, but we may not be able
- to solve problems without frame pointers.
-
-endmenu
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
-
+++ /dev/null
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001 Paolo Alberelli
-# Copyright (C) 2003, 2004 Paul Mundt
-#
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" and "archdep" for cleaning up and making dependencies for
-# this architecture
-#
-# Note that top level Makefile automagically builds dependencies for SUBDIRS
-# but does not automagically clean SUBDIRS. Therefore "archclean" should clean
-# up all, "archdep" does nothing on added SUBDIRS.
-#
-ifndef include_config
--include .config
-endif
-
-cpu-y := -mb
-cpu-$(CONFIG_LITTLE_ENDIAN) := -ml
-
-cpu-$(CONFIG_CPU_SH5) += -m5-32media-nofpu
-
-ifdef CONFIG_LITTLE_ENDIAN
-LDFLAGS_vmlinux += --defsym 'jiffies=jiffies_64'
-LDFLAGS += -EL -mshlelf32_linux
-else
-LDFLAGS_vmlinux += --defsym 'jiffies=jiffies_64+4'
-LDFLAGS += -EB -mshelf32_linux
-endif
-
-# No requirements for endianess support from AFLAGS, 'as' always run through gcc
-AFLAGS += -m5 -isa=sh64 -traditional
-CFLAGS += $(cpu-y)
-
-LDFLAGS_vmlinux += --defsym phys_stext=_stext-$(CONFIG_CACHED_MEMORY_OFFSET) \
- -e phys_stext
-
-OBJCOPYFLAGS := -O binary -R .note -R .comment -R .stab -R .stabstr -S
-
-ifdef LOADADDR
-LINKFLAGS += -Ttext $(word 1,$(LOADADDR))
-endif
-
-machine-$(CONFIG_SH_CAYMAN) := cayman
-machine-$(CONFIG_SH_SIMULATOR) := sim
-machine-$(CONFIG_SH_HARP) := harp
-machine-$(CONFIG_SH_ROMRAM) := romram
-
-head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o
-
-core-y += $(addprefix arch/$(ARCH)/, kernel/ mm/ mach-$(machine-y)/)
-
-LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
-libs-y += arch/$(ARCH)/lib/ $(LIBGCC)
-
-drivers-$(CONFIG_OPROFILE) += arch/sh64/oprofile/
-
-boot := arch/$(ARCH)/boot
-
-zImage: vmlinux
- $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-
-compressed: zImage
-
-archclean:
- $(Q)$(MAKE) $(clean)=$(boot)
-
-prepare: include/asm-$(ARCH)/asm-offsets.h arch/$(ARCH)/lib/syscalltab.h
-
-include/asm-$(ARCH)/asm-offsets.h: arch/$(ARCH)/kernel/asm-offsets.s \
- include/asm include/linux/version.h
- $(call filechk,gen-asm-offsets)
-
-define filechk_gen-syscalltab
- (set -e; \
- echo "/*"; \
- echo " * DO NOT MODIFY."; \
- echo " *"; \
- echo " * This file was generated by arch/$(ARCH)/Makefile"; \
- echo " * Any changes will be reverted at build time."; \
- echo " */"; \
- echo ""; \
- echo "#ifndef __SYSCALLTAB_H"; \
- echo "#define __SYSCALLTAB_H"; \
- echo ""; \
- echo "#include <linux/kernel.h>"; \
- echo ""; \
- echo "struct syscall_info {"; \
- echo " const char *name;"; \
- echo "} syscall_info_table[] = {"; \
- sed -e '/^.*\.long /!d;s//\t{ "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
- s/[ \t]*$$//g;s/$$/" },/;s/\("\)sys_/\1/g'; \
- echo "};"; \
- echo ""; \
- echo "#define NUM_SYSCALL_INFO_ENTRIES ARRAY_SIZE(syscall_info_table)"; \
- echo ""; \
- echo "#endif /* __SYSCALLTAB_H */" )
-endef
-
-arch/$(ARCH)/lib/syscalltab.h: arch/sh64/kernel/syscalls.S
- $(call filechk,gen-syscalltab)
-
-CLEAN_FILES += include/asm-$(ARCH)/asm-offsets.h arch/$(ARCH)/lib/syscalltab.h
-
-define archhelp
- @echo ' zImage - Compressed kernel image (arch/sh64/boot/zImage)'
-endef
-
+++ /dev/null
-#
-# arch/sh64/boot/Makefile
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2002 Stuart Menefy
-#
-
-targets := zImage
-subdir- := compressed
-
-$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
- $(call if_changed,objcopy)
- @echo 'Kernel: $@ is ready'
-
-$(obj)/compressed/vmlinux: FORCE
- $(Q)$(MAKE) $(build)=$(obj)/compressed $@
-
+++ /dev/null
-#
-# linux/arch/sh64/boot/compressed/Makefile
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2002 Stuart Menefy
-# Copyright (C) 2004 Paul Mundt
-#
-# create a compressed vmlinux image from the original vmlinux
-#
-
-targets := vmlinux vmlinux.bin vmlinux.bin.gz \
- head.o misc.o cache.o piggy.o vmlinux.lds.o
-
-EXTRA_AFLAGS := -traditional
-
-OBJECTS := $(obj)/head.o $(obj)/misc.o $(obj)/cache.o
-
-#
-# ZIMAGE_OFFSET is the load offset of the compression loader
-# (4M for the kernel plus 64K for this loader)
-#
-ZIMAGE_OFFSET = $(shell printf "0x%8x" $$[$(CONFIG_MEMORY_START)+0x400000+0x10000])
-
-LDFLAGS_vmlinux := -Ttext $(ZIMAGE_OFFSET) -e startup \
- -T $(obj)/../../kernel/vmlinux.lds.s \
- --no-warn-mismatch
-
-$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
- $(call if_changed,ld)
- @:
-
-$(obj)/vmlinux.bin: vmlinux FORCE
- $(call if_changed,objcopy)
-
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
- $(call if_changed,gzip)
-
-LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh64-linux -T
-OBJCOPYFLAGS += -R .empty_zero_page
-
-$(obj)/piggy.o: $(obj)/vmlinux.lds.s $(obj)/vmlinux.bin.gz FORCE
- $(call if_changed,ld)
-
+++ /dev/null
-/*
- * arch/shmedia/boot/compressed/cache.c -- simple cache management functions
- *
- * Code extracted from sh-ipl+g, sh-stub.c, which has the copyright:
- *
- * This is originally based on an m68k software stub written by Glenn
- * Engel at HP, but has changed quite a bit.
- *
- * Modifications for the SH by Ben Lee and Steve Chamberlain
- *
-****************************************************************************
-
- THIS SOFTWARE IS NOT COPYRIGHTED
-
- HP offers the following for use in the public domain. HP makes no
- warranty with regard to the software or it's performance and the
- user accepts the software "AS IS" with all faults.
-
- HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
- TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-
-****************************************************************************/
-
-#define CACHE_ENABLE 0
-#define CACHE_DISABLE 1
-
-int cache_control(unsigned int command)
-{
- volatile unsigned int *p = (volatile unsigned int *) 0x80000000;
- int i;
-
- for (i = 0; i < (32 * 1024); i += 32) {
- (void *) *p;
- p += (32 / sizeof (int));
- }
-
- return 0;
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/shmedia/boot/compressed/head.S
- *
- * Copied from
- * arch/shmedia/kernel/head.S
- * which carried the copyright:
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * Modification for compressed loader:
- * Copyright (C) 2002 Stuart Menefy (stuart.menefy@st.com)
- */
-
-#include <linux/linkage.h>
-#include <asm/registers.h>
-#include <asm/cache.h>
-#include <asm/mmu_context.h>
-
-/*
- * Fixed TLB entries to identity map the beginning of RAM
- */
-#define MMUIR_TEXT_H 0x0000000000000003 | CONFIG_MEMORY_START
- /* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-#define MMUIR_TEXT_L 0x000000000000009a | CONFIG_MEMORY_START
- /* 512 Mb, Cacheable (Write-back), execute, Not User, Ph. Add. */
-
-#define MMUDR_CACHED_H 0x0000000000000003 | CONFIG_MEMORY_START
- /* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-#define MMUDR_CACHED_L 0x000000000000015a | CONFIG_MEMORY_START
- /* 512 Mb, Cacheable (Write-back), read/write, Not User, Ph. Add. */
-
-#define ICCR0_INIT_VAL ICCR0_ON | ICCR0_ICI /* ICE + ICI */
-#define ICCR1_INIT_VAL ICCR1_NOLOCK /* No locking */
-
-#if 1
-#define OCCR0_INIT_VAL OCCR0_ON | OCCR0_OCI | OCCR0_WB /* OCE + OCI + WB */
-#else
-#define OCCR0_INIT_VAL OCCR0_OFF
-#endif
-#define OCCR1_INIT_VAL OCCR1_NOLOCK /* No locking */
-
- .text
-
- .global startup
-startup:
- /*
- * Prevent speculative fetch on device memory due to
- * uninitialized target registers.
- * This must be executed before the first branch.
- */
- ptabs/u ZERO, tr0
- ptabs/u ZERO, tr1
- ptabs/u ZERO, tr2
- ptabs/u ZERO, tr3
- ptabs/u ZERO, tr4
- ptabs/u ZERO, tr5
- ptabs/u ZERO, tr6
- ptabs/u ZERO, tr7
- synci
-
- /*
- * Set initial TLB entries for cached and uncached regions.
- * Note: PTA/BLINK is PIC code, PTABS/BLINK isn't !
- */
- /* Clear ITLBs */
- pta 1f, tr1
- movi ITLB_FIXED, r21
- movi ITLB_LAST_VAR_UNRESTRICTED+TLB_STEP, r22
-1: putcfg r21, 0, ZERO /* Clear MMUIR[n].PTEH.V */
- addi r21, TLB_STEP, r21
- bne r21, r22, tr1
-
- /* Clear DTLBs */
- pta 1f, tr1
- movi DTLB_FIXED, r21
- movi DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP, r22
-1: putcfg r21, 0, ZERO /* Clear MMUDR[n].PTEH.V */
- addi r21, TLB_STEP, r21
- bne r21, r22, tr1
-
- /* Map one big (512Mb) page for ITLB */
- movi ITLB_FIXED, r21
- movi MMUIR_TEXT_L, r22 /* PTEL first */
- putcfg r21, 1, r22 /* Set MMUIR[0].PTEL */
- movi MMUIR_TEXT_H, r22 /* PTEH last */
- putcfg r21, 0, r22 /* Set MMUIR[0].PTEH */
-
- /* Map one big CACHED (512Mb) page for DTLB */
- movi DTLB_FIXED, r21
- movi MMUDR_CACHED_L, r22 /* PTEL first */
- putcfg r21, 1, r22 /* Set MMUDR[0].PTEL */
- movi MMUDR_CACHED_H, r22 /* PTEH last */
- putcfg r21, 0, r22 /* Set MMUDR[0].PTEH */
-
- /* ICache */
- movi ICCR_BASE, r21
- movi ICCR0_INIT_VAL, r22
- movi ICCR1_INIT_VAL, r23
- putcfg r21, ICCR_REG0, r22
- putcfg r21, ICCR_REG1, r23
- synci
-
- /* OCache */
- movi OCCR_BASE, r21
- movi OCCR0_INIT_VAL, r22
- movi OCCR1_INIT_VAL, r23
- putcfg r21, OCCR_REG0, r22
- putcfg r21, OCCR_REG1, r23
- synco
-
- /*
- * Enable the MMU.
- * From here-on code can be non-PIC.
- */
- movi SR_HARMLESS | SR_ENABLE_MMU, r22
- putcon r22, SSR
- movi 1f, r22
- putcon r22, SPC
- synco
- rte /* And now go into the hyperspace ... */
-1: /* ... that's the next instruction ! */
-
- /* Set initial stack pointer */
- movi datalabel stack_start, r0
- ld.l r0, 0, r15
-
- /*
- * Clear bss
- */
- pt 1f, tr1
- movi datalabel __bss_start, r22
- movi datalabel _end, r23
-1: st.l r22, 0, ZERO
- addi r22, 4, r22
- bne r22, r23, tr1
-
- /*
- * Decompress the kernel.
- */
- pt decompress_kernel, tr0
- blink tr0, r18
-
- /*
- * Disable the MMU.
- */
- movi SR_HARMLESS, r22
- putcon r22, SSR
- movi 1f, r22
- putcon r22, SPC
- synco
- rte /* And now go into the hyperspace ... */
-1: /* ... that's the next instruction ! */
-
- /* Jump into the decompressed kernel */
- movi datalabel (CONFIG_MEMORY_START + 0x2000)+1, r19
- ptabs r19, tr0
- blink tr0, r18
-
- /* Shouldn't return here, but just in case, loop forever */
- pt 1f, tr0
-1: blink tr0, ZERO
+++ /dev/null
-#!/bin/sh
-#
-# arch/sh/boot/install.sh
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 1995 by Linus Torvalds
-#
-# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
-# Adapted from code in arch/i386/boot/install.sh by Russell King
-# Adapted from code in arch/arm/boot/install.sh by Stuart Menefy
-#
-# "make install" script for sh architecture
-#
-# Arguments:
-# $1 - kernel version
-# $2 - kernel image file
-# $3 - kernel map file
-# $4 - default install path (blank if root directory)
-#
-
-# User may have a custom install script
-
-if [ -x /sbin/installkernel ]; then
- exec /sbin/installkernel "$@"
-fi
-
-if [ "$2" = "zImage" ]; then
-# Compressed install
- echo "Installing compressed kernel"
- if [ -f $4/vmlinuz-$1 ]; then
- mv $4/vmlinuz-$1 $4/vmlinuz.old
- fi
-
- if [ -f $4/System.map-$1 ]; then
- mv $4/System.map-$1 $4/System.old
- fi
-
- cat $2 > $4/vmlinuz-$1
- cp $3 $4/System.map-$1
-else
-# Normal install
- echo "Installing normal kernel"
- if [ -f $4/vmlinux-$1 ]; then
- mv $4/vmlinux-$1 $4/vmlinux.old
- fi
-
- if [ -f $4/System.map ]; then
- mv $4/System.map $4/System.old
- fi
-
- cat $2 > $4/vmlinux-$1
- cp $3 $4/System.map
-fi
+++ /dev/null
-/*
- * arch/shmedia/boot/compressed/misc.c
- *
- * This is a collection of several routines from gzip-1.0.3
- * adapted for Linux.
- *
- * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
- *
- * Adapted for SHmedia from sh by Stuart Menefy, May 2002
- */
-
-#include <linux/config.h>
-#include <asm/uaccess.h>
-
-/* cache.c */
-#define CACHE_ENABLE 0
-#define CACHE_DISABLE 1
-int cache_control(unsigned int command);
-
-/*
- * gzip declarations
- */
-
-#define OF(args) args
-#define STATIC static
-
-#undef memset
-#undef memcpy
-#define memzero(s, n) memset ((s), 0, (n))
-
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-#define WSIZE 0x8000 /* Window size must be at least 32k, */
- /* and a power of two */
-
-static uch *inbuf; /* input buffer */
-static uch window[WSIZE]; /* Sliding window buffer */
-
-static unsigned insize = 0; /* valid bytes in inbuf */
-static unsigned inptr = 0; /* index of next byte to be processed in inbuf */
-static unsigned outcnt = 0; /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
-#define RESERVED 0xC0 /* bit 6,7: reserved */
-
-#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-
-/* Diagnostic functions */
-#ifdef DEBUG
-# define Assert(cond,msg) {if(!(cond)) error(msg);}
-# define Trace(x) fprintf x
-# define Tracev(x) {if (verbose) fprintf x ;}
-# define Tracevv(x) {if (verbose>1) fprintf x ;}
-# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-# define Assert(cond,msg)
-# define Trace(x)
-# define Tracev(x)
-# define Tracevv(x)
-# define Tracec(c,x)
-# define Tracecv(c,x)
-#endif
-
-static int fill_inbuf(void);
-static void flush_window(void);
-static void error(char *m);
-static void gzip_mark(void **);
-static void gzip_release(void **);
-
-extern char input_data[];
-extern int input_len;
-
-static long bytes_out = 0;
-static uch *output_data;
-static unsigned long output_ptr = 0;
-
-static void *malloc(int size);
-static void free(void *where);
-static void error(char *m);
-static void gzip_mark(void **);
-static void gzip_release(void **);
-
-static void puts(const char *);
-
-extern int _text; /* Defined in vmlinux.lds.S */
-extern int _end;
-static unsigned long free_mem_ptr;
-static unsigned long free_mem_end_ptr;
-
-#define HEAP_SIZE 0x10000
-
-#include "../../../../lib/inflate.c"
-
-static void *malloc(int size)
-{
- void *p;
-
- if (size < 0)
- error("Malloc error\n");
- if (free_mem_ptr == 0)
- error("Memory error\n");
-
- free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */
-
- p = (void *) free_mem_ptr;
- free_mem_ptr += size;
-
- if (free_mem_ptr >= free_mem_end_ptr)
- error("\nOut of memory\n");
-
- return p;
-}
-
-static void free(void *where)
-{ /* Don't care */
-}
-
-static void gzip_mark(void **ptr)
-{
- *ptr = (void *) free_mem_ptr;
-}
-
-static void gzip_release(void **ptr)
-{
- free_mem_ptr = (long) *ptr;
-}
-
-void puts(const char *s)
-{
-}
-
-void *memset(void *s, int c, size_t n)
-{
- int i;
- char *ss = (char *) s;
-
- for (i = 0; i < n; i++)
- ss[i] = c;
- return s;
-}
-
-void *memcpy(void *__dest, __const void *__src, size_t __n)
-{
- int i;
- char *d = (char *) __dest, *s = (char *) __src;
-
- for (i = 0; i < __n; i++)
- d[i] = s[i];
- return __dest;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf(void)
-{
- if (insize != 0) {
- error("ran out of input data\n");
- }
-
- inbuf = input_data;
- insize = input_len;
- inptr = 1;
- return inbuf[0];
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window(void)
-{
- ulg c = crc; /* temporary variable */
- unsigned n;
- uch *in, *out, ch;
-
- in = window;
- out = &output_data[output_ptr];
- for (n = 0; n < outcnt; n++) {
- ch = *out++ = *in++;
- c = crc_32_tab[((int) c ^ ch) & 0xff] ^ (c >> 8);
- }
- crc = c;
- bytes_out += (ulg) outcnt;
- output_ptr += (ulg) outcnt;
- outcnt = 0;
- puts(".");
-}
-
-static void error(char *x)
-{
- puts("\n\n");
- puts(x);
- puts("\n\n -- System halted");
-
- while (1) ; /* Halt */
-}
-
-#define STACK_SIZE (4096)
-long __attribute__ ((aligned(8))) user_stack[STACK_SIZE];
-long *stack_start = &user_stack[STACK_SIZE];
-
-void decompress_kernel(void)
-{
- output_data = (uch *) (CONFIG_MEMORY_START + 0x2000);
- free_mem_ptr = (unsigned long) &_end;
- free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
-
- makecrc();
- puts("Uncompressing Linux... ");
- cache_control(CACHE_ENABLE);
- gunzip();
- puts("\n");
-
-#if 0
- /* When booting from ROM may want to do something like this if the
- * boot loader doesn't.
- */
-
- /* Set up the parameters and command line */
- {
- volatile unsigned int *parambase =
- (int *) (CONFIG_MEMORY_START + 0x1000);
-
- parambase[0] = 0x1; /* MOUNT_ROOT_RDONLY */
- parambase[1] = 0x0; /* RAMDISK_FLAGS */
- parambase[2] = 0x0200; /* ORIG_ROOT_DEV */
- parambase[3] = 0x0; /* LOADER_TYPE */
- parambase[4] = 0x0; /* INITRD_START */
- parambase[5] = 0x0; /* INITRD_SIZE */
- parambase[6] = 0;
-
- strcpy((char *) ((int) parambase + 0x100),
- "console=ttySC0,38400");
- }
-#endif
-
- puts("Ok, booting the kernel.\n");
-
- cache_control(CACHE_DISABLE);
-}
+++ /dev/null
-/*
- * ld script to make compressed SuperH/shmedia Linux kernel+decompression
- * bootstrap
- * Modified by Stuart Menefy from arch/sh/vmlinux.lds.S written by Niibe Yutaka
- */
-
-#include <linux/config.h>
-
-#ifdef CONFIG_LITTLE_ENDIAN
-/* OUTPUT_FORMAT("elf32-sh64l-linux", "elf32-sh64l-linux", "elf32-sh64l-linux") */
-#define NOP 0x6ff0fff0
-#else
-/* OUTPUT_FORMAT("elf32-sh64", "elf32-sh64", "elf32-sh64") */
-#define NOP 0xf0fff06f
-#endif
-
-OUTPUT_FORMAT("elf32-sh64-linux")
-OUTPUT_ARCH(sh)
-ENTRY(_start)
-
-#define ALIGNED_GAP(section, align) (((ADDR(section)+SIZEOF(section)+(align)-1) & ~((align)-1))-ADDR(section))
-#define FOLLOWING(section, align) AT (LOADADDR(section) + ALIGNED_GAP(section,align))
-
-SECTIONS
-{
- _text = .; /* Text and read-only data */
-
- .text : {
- *(.text)
- *(.text64)
- *(.text..SHmedia32)
- *(.fixup)
- *(.gnu.warning)
- } = NOP
- . = ALIGN(4);
- .rodata : { *(.rodata) }
-
- /* There is no 'real' reason for eight byte alignment, four would work
- * as well, but gdb downloads much (*4) faster with this.
- */
- . = ALIGN(8);
- .image : { *(.image) }
- . = ALIGN(4);
- _etext = .; /* End of text section */
-
- .data : /* Data */
- FOLLOWING(.image, 4)
- {
- _data = .;
- *(.data)
- }
- _data_image = LOADADDR(.data);/* Address of data section in ROM */
-
- _edata = .; /* End of data section */
-
- .stack : { stack = .; _stack = .; }
-
- . = ALIGN(4);
- __bss_start = .; /* BSS */
- .bss : {
- *(.bss)
- }
- . = ALIGN(4);
- _end = . ;
-}
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_SUPERH=y
-CONFIG_SUPERH64=y
-CONFIG_MMU=y
-CONFIG_UID16=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_LOG_BUF_SHIFT=14
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
-CONFIG_STANDALONE=y
-CONFIG_BROKEN_ON_SMP=y
-
-#
-# General setup
-#
-CONFIG_SWAP=y
-# CONFIG_SYSVIPC is not set
-CONFIG_POSIX_MQUEUE=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-# CONFIG_AUDIT is not set
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-# CONFIG_EMBEDDED is not set
-CONFIG_KALLSYMS=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-
-#
-# Loadable module support
-#
-# CONFIG_MODULES is not set
-
-#
-# System type
-#
-# CONFIG_SH_GENERIC is not set
-# CONFIG_SH_SIMULATOR is not set
-CONFIG_SH_CAYMAN=y
-# CONFIG_SH_ROMRAM is not set
-# CONFIG_SH_HARP is not set
-
-#
-# Processor type and features
-#
-CONFIG_CPU_SH5=y
-CONFIG_CPU_SUBTYPE_SH5_101=y
-# CONFIG_CPU_SUBTYPE_SH5_103 is not set
-CONFIG_LITTLE_ENDIAN=y
-# CONFIG_BIG_ENDIAN is not set
-# CONFIG_SH64_FPU_DENORM_FLUSH is not set
-CONFIG_SH64_PGTABLE_2_LEVEL=y
-# CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
-CONFIG_SH64_USER_MISALIGNED_FIXUP=y
-
-#
-# Memory options
-#
-CONFIG_CACHED_MEMORY_OFFSET=0x20000000
-CONFIG_MEMORY_START=0x80000000
-CONFIG_MEMORY_SIZE_IN_MB=128
-
-#
-# Cache options
-#
-# CONFIG_DCACHE_DISABLED is not set
-CONFIG_DCACHE_WRITE_BACK=y
-# CONFIG_DCACHE_WRITE_THROUGH is not set
-# CONFIG_ICACHE_DISABLED is not set
-CONFIG_PCIDEVICE_MEMORY_START=C0000000
-CONFIG_DEVICE_MEMORY_START=E0000000
-CONFIG_FLASH_MEMORY_START=0x00000000
-CONFIG_PCI_BLOCK_START=0x40000000
-
-#
-# CPU Subtype specific options
-#
-CONFIG_SH64_ID2815_WORKAROUND=y
-
-#
-# Misc options
-#
-CONFIG_HEARTBEAT=y
-CONFIG_HDSP253_LED=y
-CONFIG_SH_DMA=y
-CONFIG_PREEMPT=y
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-CONFIG_PCI=y
-CONFIG_SH_PCIDMA_NONCOHERENT=y
-CONFIG_PCI_LEGACY_PROC=y
-CONFIG_PCI_NAMES=y
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_CARMEL is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=4096
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_LBD is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Networking support
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
-CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_PNP=y
-# CONFIG_IP_PNP_DHCP is not set
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_IPV6 is not set
-# CONFIG_NETFILTER is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_FASTROUTE is not set
-# CONFIG_NET_HW_FLOWCONTROL is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
-# CONFIG_STNIC is not set
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_NET_VENDOR_3COM is not set
-
-#
-# Tulip family network device support
-#
-CONFIG_NET_TULIP=y
-# CONFIG_DE2104X is not set
-CONFIG_TULIP=y
-# CONFIG_TULIP_MWI is not set
-# CONFIG_TULIP_MMIO is not set
-# CONFIG_TULIP_NAPI is not set
-# CONFIG_DE4X5 is not set
-# CONFIG_WINBOND_840 is not set
-# CONFIG_DM9102 is not set
-# CONFIG_HP100 is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_DGRS is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139CP is not set
-# CONFIG_8139TOO is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_TIGON3 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-CONFIG_SERIO=y
-CONFIG_SERIO_I8042=y
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_CT82C710 is not set
-# CONFIG_SERIO_PCIPS2 is not set
-
-#
-# Input Device Drivers
-#
-CONFIG_INPUT_KEYBOARD=y
-CONFIG_KEYBOARD_ATKBD=y
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-CONFIG_INPUT_MOUSE=y
-CONFIG_MOUSE_PS2=y
-# CONFIG_MOUSE_SERIAL is not set
-# CONFIG_MOUSE_VSXXXAA is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_QIC02_TAPE is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-CONFIG_WATCHDOG=y
-# CONFIG_WATCHDOG_NOWAYOUT is not set
-
-#
-# Watchdog Device Drivers
-#
-# CONFIG_SOFT_WATCHDOG is not set
-# CONFIG_SH_WDT is not set
-
-#
-# PCI-based Watchdog Cards
-#
-# CONFIG_PCIPCWATCHDOG is not set
-# CONFIG_WDTPCI is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# Misc devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-CONFIG_FB=y
-# CONFIG_FB_PM2 is not set
-# CONFIG_FB_CYBER2000 is not set
-# CONFIG_FB_ASILIANT is not set
-# CONFIG_FB_IMSTT is not set
-# CONFIG_FB_E1355 is not set
-# CONFIG_FB_RIVA is not set
-# CONFIG_FB_MATROX is not set
-# CONFIG_FB_RADEON_OLD is not set
-# CONFIG_FB_RADEON is not set
-# CONFIG_FB_ATY128 is not set
-# CONFIG_FB_ATY is not set
-# CONFIG_FB_SIS is not set
-# CONFIG_FB_NEOMAGIC is not set
-CONFIG_FB_KYRO=y
-# CONFIG_FB_3DFX is not set
-# CONFIG_FB_VOODOO1 is not set
-# CONFIG_FB_TRIDENT is not set
-# CONFIG_FB_VIRTUAL is not set
-
-#
-# Console display driver support
-#
-# CONFIG_VGA_CONSOLE is not set
-# CONFIG_MDA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_PCI_CONSOLE=y
-CONFIG_FONTS=y
-# CONFIG_FONT_8x8 is not set
-CONFIG_FONT_8x16=y
-# CONFIG_FONT_6x11 is not set
-# CONFIG_FONT_PEARL_8x8 is not set
-# CONFIG_FONT_ACORN_8x8 is not set
-# CONFIG_FONT_MINI_4x6 is not set
-# CONFIG_FONT_SUN8x16 is not set
-# CONFIG_FONT_SUN12x22 is not set
-
-#
-# Logo configuration
-#
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_LOGO_LINUX_CLUT224 is not set
-# CONFIG_LOGO_SUPERH_MONO is not set
-# CONFIG_LOGO_SUPERH_VGA16 is not set
-CONFIG_LOGO_SUPERH_CLUT224=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB is not set
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-CONFIG_MINIX_FS=y
-CONFIG_ROMFS_FS=y
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_FAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_DEVPTS_FS_XATTR is not set
-CONFIG_TMPFS=y
-CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-# CONFIG_EXPORTFS is not set
-CONFIG_SUNRPC=y
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Kernel hacking
-#
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_EARLY_PRINTK is not set
-# CONFIG_DEBUG_KERNEL_WITH_GDB_STUB is not set
-# CONFIG_SH64_PROC_TLB is not set
-# CONFIG_SH64_PROC_ASIDS is not set
-CONFIG_SH64_SR_WATCH=y
-# CONFIG_SH_ALPHANUMERIC is not set
-# CONFIG_SH_NO_BSS_INIT is not set
-CONFIG_FRAME_POINTER=y
-
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_CRC32=y
-# CONFIG_LIBCRC32C is not set
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_SUPERH=y
-CONFIG_SUPERH64=y
-CONFIG_MMU=y
-CONFIG_UID16=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_LOG_BUF_SHIFT=14
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
-CONFIG_STANDALONE=y
-CONFIG_BROKEN_ON_SMP=y
-
-#
-# General setup
-#
-CONFIG_SWAP=y
-# CONFIG_SYSVIPC is not set
-CONFIG_POSIX_MQUEUE=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-# CONFIG_AUDIT is not set
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-# CONFIG_EMBEDDED is not set
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-
-#
-# Loadable module support
-#
-# CONFIG_MODULES is not set
-
-#
-# System type
-#
-# CONFIG_SH_GENERIC is not set
-# CONFIG_SH_SIMULATOR is not set
-CONFIG_SH_CAYMAN=y
-# CONFIG_SH_ROMRAM is not set
-# CONFIG_SH_HARP is not set
-CONFIG_CPU_SH5=y
-CONFIG_CPU_SUBTYPE_SH5_101=y
-# CONFIG_CPU_SUBTYPE_SH5_103 is not set
-CONFIG_LITTLE_ENDIAN=y
-# CONFIG_BIG_ENDIAN is not set
-# CONFIG_SH64_FPU_DENORM_FLUSH is not set
-CONFIG_SH64_PGTABLE_2_LEVEL=y
-# CONFIG_SH64_PGTABLE_3_LEVEL is not set
-CONFIG_HUGETLB_PAGE_SIZE_64K=y
-# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set
-# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set
-CONFIG_SH64_USER_MISALIGNED_FIXUP=y
-
-#
-# Memory options
-#
-CONFIG_CACHED_MEMORY_OFFSET=0x20000000
-CONFIG_MEMORY_START=0x80000000
-CONFIG_MEMORY_SIZE_IN_MB=128
-
-#
-# Cache options
-#
-# CONFIG_DCACHE_DISABLED is not set
-CONFIG_DCACHE_WRITE_BACK=y
-# CONFIG_DCACHE_WRITE_THROUGH is not set
-# CONFIG_ICACHE_DISABLED is not set
-CONFIG_PCIDEVICE_MEMORY_START=C0000000
-CONFIG_DEVICE_MEMORY_START=E0000000
-CONFIG_FLASH_MEMORY_START=0x00000000
-CONFIG_PCI_BLOCK_START=0x40000000
-
-#
-# CPU Subtype specific options
-#
-CONFIG_SH64_ID2815_WORKAROUND=y
-
-#
-# Misc options
-#
-CONFIG_HEARTBEAT=y
-CONFIG_HDSP253_LED=y
-CONFIG_SH_DMA=y
-CONFIG_PREEMPT=y
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-CONFIG_PCI=y
-CONFIG_SH_PCIDMA_NONCOHERENT=y
-CONFIG_PCI_LEGACY_PROC=y
-CONFIG_PCI_NAMES=y
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=4096
-# CONFIG_BLK_DEV_INITRD is not set
-# CONFIG_LBD is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Networking support
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
-CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_PNP=y
-# CONFIG_IP_PNP_DHCP is not set
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_IPV6 is not set
-# CONFIG_NETFILTER is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_NET_FASTROUTE is not set
-# CONFIG_NET_HW_FLOWCONTROL is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-# CONFIG_NET_CLS_ROUTE is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
-# CONFIG_STNIC is not set
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_NET_VENDOR_3COM is not set
-
-#
-# Tulip family network device support
-#
-CONFIG_NET_TULIP=y
-# CONFIG_DE2104X is not set
-CONFIG_TULIP=y
-# CONFIG_TULIP_MWI is not set
-# CONFIG_TULIP_MMIO is not set
-# CONFIG_TULIP_NAPI is not set
-# CONFIG_DE4X5 is not set
-# CONFIG_WINBOND_840 is not set
-# CONFIG_DM9102 is not set
-# CONFIG_HP100 is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_DGRS is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139CP is not set
-# CONFIG_8139TOO is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-# CONFIG_VIA_VELOCITY is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_TIGON3 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-CONFIG_SERIO=y
-CONFIG_SERIO_I8042=y
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_CT82C710 is not set
-# CONFIG_SERIO_PCIPS2 is not set
-
-#
-# Input Device Drivers
-#
-CONFIG_INPUT_KEYBOARD=y
-CONFIG_KEYBOARD_ATKBD=y
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-CONFIG_INPUT_MOUSE=y
-CONFIG_MOUSE_PS2=y
-# CONFIG_MOUSE_SERIAL is not set
-# CONFIG_MOUSE_VSXXXAA is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_SH_SCI=y
-CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_QIC02_TAPE is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-CONFIG_WATCHDOG=y
-# CONFIG_WATCHDOG_NOWAYOUT is not set
-
-#
-# Watchdog Device Drivers
-#
-# CONFIG_SOFT_WATCHDOG is not set
-# CONFIG_SH_WDT is not set
-
-#
-# PCI-based Watchdog Cards
-#
-# CONFIG_PCIPCWATCHDOG is not set
-# CONFIG_WDTPCI is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# Misc devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-CONFIG_FB=y
-# CONFIG_FB_CIRRUS is not set
-# CONFIG_FB_PM2 is not set
-# CONFIG_FB_CYBER2000 is not set
-# CONFIG_FB_ASILIANT is not set
-# CONFIG_FB_IMSTT is not set
-# CONFIG_FB_E1355 is not set
-# CONFIG_FB_RIVA is not set
-# CONFIG_FB_MATROX is not set
-# CONFIG_FB_RADEON_OLD is not set
-# CONFIG_FB_RADEON is not set
-# CONFIG_FB_ATY128 is not set
-# CONFIG_FB_ATY is not set
-# CONFIG_FB_SIS is not set
-# CONFIG_FB_NEOMAGIC is not set
-CONFIG_FB_KYRO=y
-# CONFIG_FB_3DFX is not set
-# CONFIG_FB_VOODOO1 is not set
-# CONFIG_FB_TRIDENT is not set
-# CONFIG_FB_VIRTUAL is not set
-
-#
-# Console display driver support
-#
-# CONFIG_VGA_CONSOLE is not set
-# CONFIG_MDA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_PCI_CONSOLE=y
-CONFIG_FONTS=y
-# CONFIG_FONT_8x8 is not set
-CONFIG_FONT_8x16=y
-# CONFIG_FONT_6x11 is not set
-# CONFIG_FONT_PEARL_8x8 is not set
-# CONFIG_FONT_ACORN_8x8 is not set
-# CONFIG_FONT_MINI_4x6 is not set
-# CONFIG_FONT_SUN8x16 is not set
-# CONFIG_FONT_SUN12x22 is not set
-
-#
-# Logo configuration
-#
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_LOGO_LINUX_CLUT224 is not set
-# CONFIG_LOGO_SUPERH_MONO is not set
-# CONFIG_LOGO_SUPERH_VGA16 is not set
-CONFIG_LOGO_SUPERH_CLUT224=y
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB is not set
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-CONFIG_MINIX_FS=y
-CONFIG_ROMFS_FS=y
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_FAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_DEVPTS_FS_XATTR is not set
-CONFIG_TMPFS=y
-CONFIG_HUGETLBFS=y
-CONFIG_HUGETLB_PAGE=y
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-# CONFIG_EXPORTFS is not set
-CONFIG_SUNRPC=y
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Profiling support
-#
-CONFIG_PROFILING=y
-# CONFIG_OPROFILE is not set
-
-#
-# Kernel hacking
-#
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_EARLY_PRINTK is not set
-# CONFIG_DEBUG_KERNEL_WITH_GDB_STUB is not set
-# CONFIG_SH64_PROC_TLB is not set
-# CONFIG_SH64_PROC_ASIDS is not set
-CONFIG_SH64_SR_WATCH=y
-# CONFIG_SH_ALPHANUMERIC is not set
-# CONFIG_SH_NO_BSS_INIT is not set
-CONFIG_FRAME_POINTER=y
-
-#
-# Security options
-#
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-# CONFIG_CRC16 is not set
-CONFIG_CRC32=y
-# CONFIG_LIBCRC32C is not set
+++ /dev/null
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001 Paolo Alberelli
-# Copyright (C) 2003 Paul Mundt
-#
-# Makefile for the Linux sh64 kernel.
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-extra-y := head.o init_task.o vmlinux.lds.s
-
-obj-y := process.o signal.o entry.o traps.o irq.o irq_intc.o \
- ptrace.o setup.o time.o sys_sh64.o semaphore.o sh_ksyms.o \
- switchto.o syscalls.o
-
-obj-$(CONFIG_HEARTBEAT) += led.o
-obj-$(CONFIG_SH_ALPHANUMERIC) += alphanum.o
-obj-$(CONFIG_SH_DMA) += dma.o
-obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-obj-$(CONFIG_KALLSYMS) += unwind.o
-obj-$(CONFIG_PCI) += pci-dma.o pcibios.o
-
-ifeq ($(CONFIG_PCI),y)
-obj-$(CONFIG_CPU_SH5) += pci_sh5.o
-endif
-
-ifndef CONFIG_NOFPU_SUPPORT
-obj-y += fpu.o
-endif
-
-USE_STANDARD_AS_RULE := true
-
+++ /dev/null
-/*
- * arch/sh64/kernel/alpanum.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Machine-independent functions for handling 8-digit alphanumeric display
- * (e.g. Agilent HDSP-253x)
- */
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/sched.h>
-
-void mach_alphanum(int pos, unsigned char val);
-void mach_led(int pos, int val);
-
-void print_seg(char *file, int line)
-{
- int i;
- unsigned int nibble;
-
- for (i = 0; i < 5; i++) {
- mach_alphanum(i, file[i]);
- }
-
- for (i = 0; i < 3; i++) {
- nibble = ((line >> (i * 4)) & 0xf);
- mach_alphanum(7 - i, nibble + ((nibble > 9) ? 55 : 48));
- }
-}
-
-void print_seg_num(unsigned num)
-{
- int i;
- unsigned int nibble;
-
- for (i = 0; i < 8; i++) {
- nibble = ((num >> (i * 4)) & 0xf);
-
- mach_alphanum(7 - i, nibble + ((nibble > 9) ? 55 : 48));
- }
-}
-
+++ /dev/null
-/*
- * This program is used to generate definitions needed by
- * assembly language modules.
- *
- * We use the technique used in the OSF Mach kernel code:
- * generate asm statements containing #defines,
- * compile this file to assembler, and then extract the
- * #defines from the assembly-language output.
- */
-
-#include <linux/stddef.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <asm/thread_info.h>
-
-#define DEFINE(sym, val) \
- asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-
-#define BLANK() asm volatile("\n->" : : )
-
-int main(void)
-{
- /* offsets into the thread_info struct */
- DEFINE(TI_TASK, offsetof(struct thread_info, task));
- DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
- DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
- DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
- DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
- DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
- DEFINE(TI_RESTART_BLOCK,offsetof(struct thread_info, restart_block));
-
- return 0;
-}
+++ /dev/null
-/*
- * arch/sh64/kernel/dma.c
- *
- * DMA routines for the SH-5 DMAC.
- *
- * Copyright (C) 2003 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/types.h>
-#include <linux/irq.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <asm/hardware.h>
-#include <asm/dma.h>
-#include <asm/signal.h>
-#include <asm/errno.h>
-#include <asm/io.h>
-
-typedef struct {
- unsigned long dev_addr;
- unsigned long mem_addr;
-
- unsigned int mode;
- unsigned int count;
-} dma_info_t;
-
-static dma_info_t dma_info[MAX_DMA_CHANNELS];
-extern spinlock_t dma_spin_lock;
-
-/* arch/sh64/kernel/irq_intc.c */
-extern void make_intc_irq(unsigned int irq);
-
-/* DMAC Interrupts */
-#define DMA_IRQ_DMTE0 18
-#define DMA_IRQ_DERR 22
-
-#define DMAC_COMMON_BASE (dmac_base + 0x08)
-#define DMAC_SAR_BASE (dmac_base + 0x10)
-#define DMAC_DAR_BASE (dmac_base + 0x18)
-#define DMAC_COUNT_BASE (dmac_base + 0x20)
-#define DMAC_CTRL_BASE (dmac_base + 0x28)
-#define DMAC_STATUS_BASE (dmac_base + 0x30)
-
-#define DMAC_SAR(n) (DMAC_SAR_BASE + ((n) * 0x28))
-#define DMAC_DAR(n) (DMAC_DAR_BASE + ((n) * 0x28))
-#define DMAC_COUNT(n) (DMAC_COUNT_BASE + ((n) * 0x28))
-#define DMAC_CTRL(n) (DMAC_CTRL_BASE + ((n) * 0x28))
-#define DMAC_STATUS(n) (DMAC_STATUS_BASE + ((n) * 0x28))
-
-/* DMAC.COMMON Bit Definitions */
-#define DMAC_COMMON_PR 0x00000001 /* Priority */
- /* Bits 1-2 Reserved */
-#define DMAC_COMMON_ME 0x00000008 /* Master Enable */
-#define DMAC_COMMON_NMI 0x00000010 /* NMI Flag */
- /* Bits 5-6 Reserved */
-#define DMAC_COMMON_ER 0x00000780 /* Error Response */
-#define DMAC_COMMON_AAE 0x00007800 /* Address Alignment Error */
- /* Bits 15-63 Reserved */
-
-/* DMAC.SAR Bit Definitions */
-#define DMAC_SAR_ADDR 0xffffffff /* Source Address */
-
-/* DMAC.DAR Bit Definitions */
-#define DMAC_DAR_ADDR 0xffffffff /* Destination Address */
-
-/* DMAC.COUNT Bit Definitions */
-#define DMAC_COUNT_CNT 0xffffffff /* Transfer Count */
-
-/* DMAC.CTRL Bit Definitions */
-#define DMAC_CTRL_TS 0x00000007 /* Transfer Size */
-#define DMAC_CTRL_SI 0x00000018 /* Source Increment */
-#define DMAC_CTRL_DI 0x00000060 /* Destination Increment */
-#define DMAC_CTRL_RS 0x00000780 /* Resource Select */
-#define DMAC_CTRL_IE 0x00000800 /* Interrupt Enable */
-#define DMAC_CTRL_TE 0x00001000 /* Transfer Enable */
- /* Bits 15-63 Reserved */
-
-/* DMAC.STATUS Bit Definitions */
-#define DMAC_STATUS_TE 0x00000001 /* Transfer End */
-#define DMAC_STATUS_AAE 0x00000002 /* Address Alignment Error */
- /* Bits 2-63 Reserved */
-
-static unsigned long dmac_base;
-
-void set_dma_count(unsigned int chan, unsigned int count);
-void set_dma_addr(unsigned int chan, unsigned int addr);
-
-static irqreturn_t dma_mte(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned int chan = irq - DMA_IRQ_DMTE0;
- dma_info_t *info = dma_info + chan;
- u64 status;
-
- if (info->mode & DMA_MODE_WRITE) {
- sh64_out64(info->mem_addr & DMAC_SAR_ADDR, DMAC_SAR(chan));
- } else {
- sh64_out64(info->mem_addr & DMAC_DAR_ADDR, DMAC_DAR(chan));
- }
-
- set_dma_count(chan, info->count);
-
- /* Clear the TE bit */
- status = sh64_in64(DMAC_STATUS(chan));
- status &= ~DMAC_STATUS_TE;
- sh64_out64(status, DMAC_STATUS(chan));
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction irq_dmte = {
- .handler = dma_mte,
- .flags = SA_INTERRUPT,
- .name = "DMA MTE",
-};
-
-static irqreturn_t dma_err(int irq, void *dev_id, struct pt_regs *regs)
-{
- u64 tmp;
- u8 chan;
-
- printk(KERN_NOTICE "DMAC: Got a DMA Error!\n");
-
- tmp = sh64_in64(DMAC_COMMON_BASE);
-
- /* Check for the type of error */
- if ((chan = tmp & DMAC_COMMON_AAE)) {
- /* It's an address alignment error.. */
- printk(KERN_NOTICE "DMAC: Alignment error on channel %d, ", chan);
-
- printk(KERN_NOTICE "SAR: 0x%08llx, DAR: 0x%08llx, COUNT: %lld\n",
- (sh64_in64(DMAC_SAR(chan)) & DMAC_SAR_ADDR),
- (sh64_in64(DMAC_DAR(chan)) & DMAC_DAR_ADDR),
- (sh64_in64(DMAC_COUNT(chan)) & DMAC_COUNT_CNT));
-
- } else if ((chan = tmp & DMAC_COMMON_ER)) {
- /* Something else went wrong.. */
- printk(KERN_NOTICE "DMAC: Error on channel %d\n", chan);
- }
-
- /* Reset the ME bit to clear the interrupt */
- tmp |= DMAC_COMMON_ME;
- sh64_out64(tmp, DMAC_COMMON_BASE);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction irq_derr = {
- .handler = dma_err,
- .flags = SA_INTERRUPT,
- .name = "DMA Error",
-};
-
-static inline unsigned long calc_xmit_shift(unsigned int chan)
-{
- return sh64_in64(DMAC_CTRL(chan)) & 0x03;
-}
-
-void setup_dma(unsigned int chan, dma_info_t *info)
-{
- unsigned int irq = DMA_IRQ_DMTE0 + chan;
- dma_info_t *dma = dma_info + chan;
-
- make_intc_irq(irq);
- setup_irq(irq, &irq_dmte);
- dma = info;
-}
-
-void enable_dma(unsigned int chan)
-{
- u64 ctrl;
-
- ctrl = sh64_in64(DMAC_CTRL(chan));
- ctrl |= DMAC_CTRL_TE;
- sh64_out64(ctrl, DMAC_CTRL(chan));
-}
-
-void disable_dma(unsigned int chan)
-{
- u64 ctrl;
-
- ctrl = sh64_in64(DMAC_CTRL(chan));
- ctrl &= ~DMAC_CTRL_TE;
- sh64_out64(ctrl, DMAC_CTRL(chan));
-}
-
-void set_dma_mode(unsigned int chan, char mode)
-{
- dma_info_t *info = dma_info + chan;
-
- info->mode = mode;
-
- set_dma_addr(chan, info->mem_addr);
- set_dma_count(chan, info->count);
-}
-
-void set_dma_addr(unsigned int chan, unsigned int addr)
-{
- dma_info_t *info = dma_info + chan;
- unsigned long sar, dar;
-
- info->mem_addr = addr;
- sar = (info->mode & DMA_MODE_WRITE) ? info->mem_addr : info->dev_addr;
- dar = (info->mode & DMA_MODE_WRITE) ? info->dev_addr : info->mem_addr;
-
- sh64_out64(sar & DMAC_SAR_ADDR, DMAC_SAR(chan));
- sh64_out64(dar & DMAC_SAR_ADDR, DMAC_DAR(chan));
-}
-
-void set_dma_count(unsigned int chan, unsigned int count)
-{
- dma_info_t *info = dma_info + chan;
- u64 tmp;
-
- info->count = count;
-
- tmp = (info->count >> calc_xmit_shift(chan)) & DMAC_COUNT_CNT;
-
- sh64_out64(tmp, DMAC_COUNT(chan));
-}
-
-unsigned long claim_dma_lock(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&dma_spin_lock, flags);
-
- return flags;
-}
-
-void release_dma_lock(unsigned long flags)
-{
- spin_unlock_irqrestore(&dma_spin_lock, flags);
-}
-
-int get_dma_residue(unsigned int chan)
-{
- return sh64_in64(DMAC_COUNT(chan) << calc_xmit_shift(chan));
-}
-
-int __init init_dma(void)
-{
- struct vcr_info vcr;
- u64 tmp;
-
- /* Remap the DMAC */
- dmac_base = onchip_remap(PHYS_DMAC_BLOCK, 1024, "DMAC");
- if (!dmac_base) {
- printk(KERN_ERR "Unable to remap DMAC\n");
- return -ENOMEM;
- }
-
- /* Report DMAC.VCR Info */
- vcr = sh64_get_vcr_info(dmac_base);
- printk("DMAC: Module ID: 0x%04x, Module version: 0x%04x\n",
- vcr.mod_id, vcr.mod_vers);
-
- /* Set the ME bit */
- tmp = sh64_in64(DMAC_COMMON_BASE);
- tmp |= DMAC_COMMON_ME;
- sh64_out64(tmp, DMAC_COMMON_BASE);
-
- /* Enable the DMAC Error Interrupt */
- make_intc_irq(DMA_IRQ_DERR);
- setup_irq(DMA_IRQ_DERR, &irq_derr);
-
- return 0;
-}
-
-static void __exit exit_dma(void)
-{
- onchip_unmap(dmac_base);
- free_irq(DMA_IRQ_DERR, 0);
-}
-
-module_init(init_dma);
-module_exit(exit_dma);
-
-MODULE_AUTHOR("Paul Mundt");
-MODULE_DESCRIPTION("DMA API for SH-5 DMAC");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(setup_dma);
-EXPORT_SYMBOL(claim_dma_lock);
-EXPORT_SYMBOL(release_dma_lock);
-EXPORT_SYMBOL(enable_dma);
-EXPORT_SYMBOL(disable_dma);
-EXPORT_SYMBOL(set_dma_mode);
-EXPORT_SYMBOL(set_dma_addr);
-EXPORT_SYMBOL(set_dma_count);
-EXPORT_SYMBOL(get_dma_residue);
-
+++ /dev/null
-/*
- * arch/sh64/kernel/early_printk.c
- *
- * SH-5 Early SCIF console (cloned and hacked from sh implementation)
- *
- * Copyright (C) 2003, 2004 Paul Mundt <lethal@linux-sh.org>
- * Copyright (C) 2002 M. R. Brown <mrbrown@0xd6.org>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/console.h>
-#include <linux/tty.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <asm/hardware.h>
-
-extern void cpu_relax(void);
-
-#define SCIF_BASE_ADDR 0x01030000
-#define SCIF_ADDR_SH5 PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
-
-/*
- * Fixed virtual address where SCIF is mapped (should already be done
- * in arch/sh64/kernel/head.S!).
- */
-#define SCIF_REG 0xfa030000
-
-enum {
- SCIF_SCSMR2 = SCIF_REG + 0x00,
- SCIF_SCBRR2 = SCIF_REG + 0x04,
- SCIF_SCSCR2 = SCIF_REG + 0x08,
- SCIF_SCFTDR2 = SCIF_REG + 0x0c,
- SCIF_SCFSR2 = SCIF_REG + 0x10,
- SCIF_SCFRDR2 = SCIF_REG + 0x14,
- SCIF_SCFCR2 = SCIF_REG + 0x18,
- SCIF_SCFDR2 = SCIF_REG + 0x1c,
- SCIF_SCSPTR2 = SCIF_REG + 0x20,
- SCIF_SCLSR2 = SCIF_REG + 0x24,
-};
-
-static void sh_console_putc(int c)
-{
- while (!(ctrl_inw(SCIF_SCFSR2) & 0x20))
- cpu_relax();
-
- ctrl_outb(c, SCIF_SCFTDR2);
- ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0x9f), SCIF_SCFSR2);
-
- if (c == '\n')
- sh_console_putc('\r');
-}
-
-static void sh_console_flush(void)
-{
- ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2);
-
- while (!(ctrl_inw(SCIF_SCFSR2) & 0x40))
- cpu_relax();
-
- ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2);
-}
-
-static void sh_console_write(struct console *con, const char *s, unsigned count)
-{
- while (count-- > 0)
- sh_console_putc(*s++);
-
- sh_console_flush();
-}
-
-static int __init sh_console_setup(struct console *con, char *options)
-{
- con->cflag = CREAD | HUPCL | CLOCAL | B19200 | CS8;
-
- return 0;
-}
-
-static struct console sh_console = {
- .name = "scifcon",
- .write = sh_console_write,
- .setup = sh_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-void __init enable_early_printk(void)
-{
- ctrl_outb(0x2a, SCIF_SCBRR2); /* 19200bps */
-
- ctrl_outw(0x04, SCIF_SCFCR2); /* Reset TFRST */
- ctrl_outw(0x10, SCIF_SCFCR2); /* TTRG0=1 */
-
- ctrl_outw(0, SCIF_SCSPTR2);
- ctrl_outw(0x60, SCIF_SCFSR2);
- ctrl_outw(0, SCIF_SCLSR2);
- ctrl_outw(0x30, SCIF_SCSCR2);
-
- register_console(&sh_console);
-}
-
-void disable_early_printk(void)
-{
- unregister_console(&sh_console);
-}
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/entry.S
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2004 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sys.h>
-
-#include <asm/processor.h>
-#include <asm/registers.h>
-#include <asm/unistd.h>
-#include <asm/thread_info.h>
-#include <asm/asm-offsets.h>
-
-/*
- * SR fields.
- */
-#define SR_ASID_MASK 0x00ff0000
-#define SR_FD_MASK 0x00008000
-#define SR_SS 0x08000000
-#define SR_BL 0x10000000
-#define SR_MD 0x40000000
-
-/*
- * Event code.
- */
-#define EVENT_INTERRUPT 0
-#define EVENT_FAULT_TLB 1
-#define EVENT_FAULT_NOT_TLB 2
-#define EVENT_DEBUG 3
-
-/* EXPEVT values */
-#define RESET_CAUSE 0x20
-#define DEBUGSS_CAUSE 0x980
-
-/*
- * Frame layout. Quad index.
- */
-#define FRAME_T(x) FRAME_TBASE+(x*8)
-#define FRAME_R(x) FRAME_RBASE+(x*8)
-#define FRAME_S(x) FRAME_SBASE+(x*8)
-#define FSPC 0
-#define FSSR 1
-#define FSYSCALL_ID 2
-
-/* Arrange the save frame to be a multiple of 32 bytes long */
-#define FRAME_SBASE 0
-#define FRAME_RBASE (FRAME_SBASE+(3*8)) /* SYSCALL_ID - SSR - SPC */
-#define FRAME_TBASE (FRAME_RBASE+(63*8)) /* r0 - r62 */
-#define FRAME_PBASE (FRAME_TBASE+(8*8)) /* tr0 -tr7 */
-#define FRAME_SIZE (FRAME_PBASE+(2*8)) /* pad0-pad1 */
-
-#define FP_FRAME_SIZE FP_FRAME_BASE+(33*8) /* dr0 - dr31 + fpscr */
-#define FP_FRAME_BASE 0
-
-#define SAVED_R2 0*8
-#define SAVED_R3 1*8
-#define SAVED_R4 2*8
-#define SAVED_R5 3*8
-#define SAVED_R18 4*8
-#define SAVED_R6 5*8
-#define SAVED_TR0 6*8
-
-/* These are the registers saved in the TLB path that aren't saved in the first
- level of the normal one. */
-#define TLB_SAVED_R25 7*8
-#define TLB_SAVED_TR1 8*8
-#define TLB_SAVED_TR2 9*8
-#define TLB_SAVED_TR3 10*8
-#define TLB_SAVED_TR4 11*8
-/* Save R0/R1 : PT-migrating compiler currently dishounours -ffixed-r0 and -ffixed-r1 causing
- breakage otherwise. */
-#define TLB_SAVED_R0 12*8
-#define TLB_SAVED_R1 13*8
-
-#define CLI() \
- getcon SR, r6; \
- ori r6, 0xf0, r6; \
- putcon r6, SR;
-
-#define STI() \
- getcon SR, r6; \
- andi r6, ~0xf0, r6; \
- putcon r6, SR;
-
-#ifdef CONFIG_PREEMPT
-# define preempt_stop() CLI()
-#else
-# define preempt_stop()
-# define resume_kernel restore_all
-#endif
-
- .section .data, "aw"
-
-#define FAST_TLBMISS_STACK_CACHELINES 4
-#define FAST_TLBMISS_STACK_QUADWORDS (4*FAST_TLBMISS_STACK_CACHELINES)
-
-/* Register back-up area for all exceptions */
- .balign 32
- /* Allow for 16 quadwords to be pushed by fast tlbmiss handling
- * register saves etc. */
- .fill FAST_TLBMISS_STACK_QUADWORDS, 8, 0x0
-/* This is 32 byte aligned by construction */
-/* Register back-up area for all exceptions */
-reg_save_area:
- .quad 0
- .quad 0
- .quad 0
- .quad 0
-
- .quad 0
- .quad 0
- .quad 0
- .quad 0
-
- .quad 0
- .quad 0
- .quad 0
- .quad 0
-
- .quad 0
- .quad 0
-
-/* Save area for RESVEC exceptions. We cannot use reg_save_area because of
- * reentrancy. Note this area may be accessed via physical address.
- * Align so this fits a whole single cache line, for ease of purging.
- */
- .balign 32,0,32
-resvec_save_area:
- .quad 0
- .quad 0
- .quad 0
- .quad 0
- .quad 0
- .balign 32,0,32
-
-/* Jump table of 3rd level handlers */
-trap_jtable:
- .long do_exception_error /* 0x000 */
- .long do_exception_error /* 0x020 */
- .long tlb_miss_load /* 0x040 */
- .long tlb_miss_store /* 0x060 */
- ! ARTIFICIAL pseudo-EXPEVT setting
- .long do_debug_interrupt /* 0x080 */
- .long tlb_miss_load /* 0x0A0 */
- .long tlb_miss_store /* 0x0C0 */
- .long do_address_error_load /* 0x0E0 */
- .long do_address_error_store /* 0x100 */
-#ifndef CONFIG_NOFPU_SUPPORT
- .long do_fpu_error /* 0x120 */
-#else
- .long do_exception_error /* 0x120 */
-#endif
- .long do_exception_error /* 0x140 */
- .long system_call /* 0x160 */
- .long do_reserved_inst /* 0x180 */
- .long do_illegal_slot_inst /* 0x1A0 */
- .long do_NMI /* 0x1C0 */
- .long do_exception_error /* 0x1E0 */
- .rept 15
- .long do_IRQ /* 0x200 - 0x3C0 */
- .endr
- .long do_exception_error /* 0x3E0 */
- .rept 32
- .long do_IRQ /* 0x400 - 0x7E0 */
- .endr
- .long fpu_error_or_IRQA /* 0x800 */
- .long fpu_error_or_IRQB /* 0x820 */
- .long do_IRQ /* 0x840 */
- .long do_IRQ /* 0x860 */
- .rept 6
- .long do_exception_error /* 0x880 - 0x920 */
- .endr
- .long do_software_break_point /* 0x940 */
- .long do_exception_error /* 0x960 */
- .long do_single_step /* 0x980 */
-
- .rept 3
- .long do_exception_error /* 0x9A0 - 0x9E0 */
- .endr
- .long do_IRQ /* 0xA00 */
- .long do_IRQ /* 0xA20 */
- .long itlb_miss_or_IRQ /* 0xA40 */
- .long do_IRQ /* 0xA60 */
- .long do_IRQ /* 0xA80 */
- .long itlb_miss_or_IRQ /* 0xAA0 */
- .long do_exception_error /* 0xAC0 */
- .long do_address_error_exec /* 0xAE0 */
- .rept 8
- .long do_exception_error /* 0xB00 - 0xBE0 */
- .endr
- .rept 18
- .long do_IRQ /* 0xC00 - 0xE20 */
- .endr
-
- .section .text64, "ax"
-
-/*
- * --- Exception/Interrupt/Event Handling Section
- */
-
-/*
- * VBR and RESVEC blocks.
- *
- * First level handler for VBR-based exceptions.
- *
- * To avoid waste of space, align to the maximum text block size.
- * This is assumed to be at most 128 bytes or 32 instructions.
- * DO NOT EXCEED 32 instructions on the first level handlers !
- *
- * Also note that RESVEC is contained within the VBR block
- * where the room left (1KB - TEXT_SIZE) allows placing
- * the RESVEC block (at most 512B + TEXT_SIZE).
- *
- * So first (and only) level handler for RESVEC-based exceptions.
- *
- * Where the fault/interrupt is handled (not_a_tlb_miss, tlb_miss
- * and interrupt) we are a lot tight with register space until
- * saving onto the stack frame, which is done in handle_exception().
- *
- */
-
-#define TEXT_SIZE 128
-#define BLOCK_SIZE 1664 /* Dynamic check, 13*128 */
-
- .balign TEXT_SIZE
-LVBR_block:
- .space 256, 0 /* Power-on class handler, */
- /* not required here */
-not_a_tlb_miss:
- /* Save original stack pointer into KCR1 */
- putcon SP, KCR1
-
- /* Save other original registers into reg_save_area */
- movi reg_save_area, SP
- st.q SP, SAVED_R2, r2
- st.q SP, SAVED_R3, r3
- st.q SP, SAVED_R4, r4
- st.q SP, SAVED_R5, r5
- st.q SP, SAVED_R6, r6
- st.q SP, SAVED_R18, r18
- gettr tr0, r3
- st.q SP, SAVED_TR0, r3
-
- /* Set args for Non-debug, Not a TLB miss class handler */
- getcon EXPEVT, r2
- movi ret_from_exception, r3
- ori r3, 1, r3
- movi EVENT_FAULT_NOT_TLB, r4
- or SP, ZERO, r5
- getcon KCR1, SP
- pta handle_exception, tr0
- blink tr0, ZERO
-
- .balign 256
- ! VBR+0x200
- nop
- .balign 256
- ! VBR+0x300
- nop
- .balign 256
- /*
- * Instead of the natural .balign 1024 place RESVEC here
- * respecting the final 1KB alignment.
- */
- .balign TEXT_SIZE
- /*
- * Instead of '.space 1024-TEXT_SIZE' place the RESVEC
- * block making sure the final alignment is correct.
- */
-tlb_miss:
- putcon SP, KCR1
- movi reg_save_area, SP
- /* SP is guaranteed 32-byte aligned. */
- st.q SP, TLB_SAVED_R0 , r0
- st.q SP, TLB_SAVED_R1 , r1
- st.q SP, SAVED_R2 , r2
- st.q SP, SAVED_R3 , r3
- st.q SP, SAVED_R4 , r4
- st.q SP, SAVED_R5 , r5
- st.q SP, SAVED_R6 , r6
- st.q SP, SAVED_R18, r18
-
- /* Save R25 for safety; as/ld may want to use it to achieve the call to
- * the code in mm/tlbmiss.c */
- st.q SP, TLB_SAVED_R25, r25
- gettr tr0, r2
- gettr tr1, r3
- gettr tr2, r4
- gettr tr3, r5
- gettr tr4, r18
- st.q SP, SAVED_TR0 , r2
- st.q SP, TLB_SAVED_TR1 , r3
- st.q SP, TLB_SAVED_TR2 , r4
- st.q SP, TLB_SAVED_TR3 , r5
- st.q SP, TLB_SAVED_TR4 , r18
-
- pt do_fast_page_fault, tr0
- getcon SSR, r2
- getcon EXPEVT, r3
- getcon TEA, r4
- shlri r2, 30, r2
- andi r2, 1, r2 /* r2 = SSR.MD */
- blink tr0, LINK
-
- pt fixup_to_invoke_general_handler, tr1
-
- /* If the fast path handler fixed the fault, just drop through quickly
- to the restore code right away to return to the excepting context.
- */
- beqi/u r2, 0, tr1
-
-fast_tlb_miss_restore:
- ld.q SP, SAVED_TR0, r2
- ld.q SP, TLB_SAVED_TR1, r3
- ld.q SP, TLB_SAVED_TR2, r4
-
- ld.q SP, TLB_SAVED_TR3, r5
- ld.q SP, TLB_SAVED_TR4, r18
-
- ptabs r2, tr0
- ptabs r3, tr1
- ptabs r4, tr2
- ptabs r5, tr3
- ptabs r18, tr4
-
- ld.q SP, TLB_SAVED_R0, r0
- ld.q SP, TLB_SAVED_R1, r1
- ld.q SP, SAVED_R2, r2
- ld.q SP, SAVED_R3, r3
- ld.q SP, SAVED_R4, r4
- ld.q SP, SAVED_R5, r5
- ld.q SP, SAVED_R6, r6
- ld.q SP, SAVED_R18, r18
- ld.q SP, TLB_SAVED_R25, r25
-
- getcon KCR1, SP
- rte
- nop /* for safety, in case the code is run on sh5-101 cut1.x */
-
-fixup_to_invoke_general_handler:
-
- /* OK, new method. Restore stuff that's not expected to get saved into
- the 'first-level' reg save area, then just fall through to setting
- up the registers and calling the second-level handler. */
-
- /* 2nd level expects r2,3,4,5,6,18,tr0 to be saved. So we must restore
- r25,tr1-4 and save r6 to get into the right state. */
-
- ld.q SP, TLB_SAVED_TR1, r3
- ld.q SP, TLB_SAVED_TR2, r4
- ld.q SP, TLB_SAVED_TR3, r5
- ld.q SP, TLB_SAVED_TR4, r18
- ld.q SP, TLB_SAVED_R25, r25
-
- ld.q SP, TLB_SAVED_R0, r0
- ld.q SP, TLB_SAVED_R1, r1
-
- ptabs/u r3, tr1
- ptabs/u r4, tr2
- ptabs/u r5, tr3
- ptabs/u r18, tr4
-
- /* Set args for Non-debug, TLB miss class handler */
- getcon EXPEVT, r2
- movi ret_from_exception, r3
- ori r3, 1, r3
- movi EVENT_FAULT_TLB, r4
- or SP, ZERO, r5
- getcon KCR1, SP
- pta handle_exception, tr0
- blink tr0, ZERO
-
-/* NB TAKE GREAT CARE HERE TO ENSURE THAT THE INTERRUPT CODE
- DOES END UP AT VBR+0x600 */
- nop
- nop
- nop
- nop
- nop
- nop
-
- .balign 256
- /* VBR + 0x600 */
-
-interrupt:
- /* Save original stack pointer into KCR1 */
- putcon SP, KCR1
-
- /* Save other original registers into reg_save_area */
- movi reg_save_area, SP
- st.q SP, SAVED_R2, r2
- st.q SP, SAVED_R3, r3
- st.q SP, SAVED_R4, r4
- st.q SP, SAVED_R5, r5
- st.q SP, SAVED_R6, r6
- st.q SP, SAVED_R18, r18
- gettr tr0, r3
- st.q SP, SAVED_TR0, r3
-
- /* Set args for interrupt class handler */
- getcon INTEVT, r2
- movi ret_from_irq, r3
- ori r3, 1, r3
- movi EVENT_INTERRUPT, r4
- or SP, ZERO, r5
- getcon KCR1, SP
- pta handle_exception, tr0
- blink tr0, ZERO
- .balign TEXT_SIZE /* let's waste the bare minimum */
-
-LVBR_block_end: /* Marker. Used for total checking */
-
- .balign 256
-LRESVEC_block:
- /* Panic handler. Called with MMU off. Possible causes/actions:
- * - Reset: Jump to program start.
- * - Single Step: Turn off Single Step & return.
- * - Others: Call panic handler, passing PC as arg.
- * (this may need to be extended...)
- */
-reset_or_panic:
- putcon SP, DCR
- /* First save r0-1 and tr0, as we need to use these */
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
- st.q SP, 0, r0
- st.q SP, 8, r1
- gettr tr0, r0
- st.q SP, 32, r0
-
- /* Check cause */
- getcon EXPEVT, r0
- movi RESET_CAUSE, r1
- sub r1, r0, r1 /* r1=0 if reset */
- movi _stext-CONFIG_CACHED_MEMORY_OFFSET, r0
- ori r0, 1, r0
- ptabs r0, tr0
- beqi r1, 0, tr0 /* Jump to start address if reset */
-
- getcon EXPEVT, r0
- movi DEBUGSS_CAUSE, r1
- sub r1, r0, r1 /* r1=0 if single step */
- pta single_step_panic, tr0
- beqi r1, 0, tr0 /* jump if single step */
-
- /* Now jump to where we save the registers. */
- movi panic_stash_regs-CONFIG_CACHED_MEMORY_OFFSET, r1
- ptabs r1, tr0
- blink tr0, r63
-
-single_step_panic:
- /* We are in a handler with Single Step set. We need to resume the
- * handler, by turning on MMU & turning off Single Step. */
- getcon SSR, r0
- movi SR_MMU, r1
- or r0, r1, r0
- movi ~SR_SS, r1
- and r0, r1, r0
- putcon r0, SSR
- /* Restore EXPEVT, as the rte won't do this */
- getcon PEXPEVT, r0
- putcon r0, EXPEVT
- /* Restore regs */
- ld.q SP, 32, r0
- ptabs r0, tr0
- ld.q SP, 0, r0
- ld.q SP, 8, r1
- getcon DCR, SP
- synco
- rte
-
-
- .balign 256
-debug_exception:
- /*
- * Single step/software_break_point first level handler.
- * Called with MMU off, so the first thing we do is enable it
- * by doing an rte with appropriate SSR.
- */
- putcon SP, DCR
- /* Save SSR & SPC, together with R0 & R1, as we need to use 2 regs. */
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
-
- /* With the MMU off, we are bypassing the cache, so purge any
- * data that will be made stale by the following stores.
- */
- ocbp SP, 0
- synco
-
- st.q SP, 0, r0
- st.q SP, 8, r1
- getcon SPC, r0
- st.q SP, 16, r0
- getcon SSR, r0
- st.q SP, 24, r0
-
- /* Enable MMU, block exceptions, set priv mode, disable single step */
- movi SR_MMU | SR_BL | SR_MD, r1
- or r0, r1, r0
- movi ~SR_SS, r1
- and r0, r1, r0
- putcon r0, SSR
- /* Force control to debug_exception_2 when rte is executed */
- movi debug_exeception_2, r0
- ori r0, 1, r0 /* force SHmedia, just in case */
- putcon r0, SPC
- getcon DCR, SP
- synco
- rte
-debug_exeception_2:
- /* Restore saved regs */
- putcon SP, KCR1
- movi resvec_save_area, SP
- ld.q SP, 24, r0
- putcon r0, SSR
- ld.q SP, 16, r0
- putcon r0, SPC
- ld.q SP, 0, r0
- ld.q SP, 8, r1
-
- /* Save other original registers into reg_save_area */
- movi reg_save_area, SP
- st.q SP, SAVED_R2, r2
- st.q SP, SAVED_R3, r3
- st.q SP, SAVED_R4, r4
- st.q SP, SAVED_R5, r5
- st.q SP, SAVED_R6, r6
- st.q SP, SAVED_R18, r18
- gettr tr0, r3
- st.q SP, SAVED_TR0, r3
-
- /* Set args for debug class handler */
- getcon EXPEVT, r2
- movi ret_from_exception, r3
- ori r3, 1, r3
- movi EVENT_DEBUG, r4
- or SP, ZERO, r5
- getcon KCR1, SP
- pta handle_exception, tr0
- blink tr0, ZERO
-
- .balign 256
-debug_interrupt:
- /* !!! WE COME HERE IN REAL MODE !!! */
- /* Hook-up debug interrupt to allow various debugging options to be
- * hooked into its handler. */
- /* Save original stack pointer into KCR1 */
- synco
- putcon SP, KCR1
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
- ocbp SP, 0
- ocbp SP, 32
- synco
-
- /* Save other original registers into reg_save_area thru real addresses */
- st.q SP, SAVED_R2, r2
- st.q SP, SAVED_R3, r3
- st.q SP, SAVED_R4, r4
- st.q SP, SAVED_R5, r5
- st.q SP, SAVED_R6, r6
- st.q SP, SAVED_R18, r18
- gettr tr0, r3
- st.q SP, SAVED_TR0, r3
-
- /* move (spc,ssr)->(pspc,pssr). The rte will shift
- them back again, so that they look like the originals
- as far as the real handler code is concerned. */
- getcon spc, r6
- putcon r6, pspc
- getcon ssr, r6
- putcon r6, pssr
-
- ! construct useful SR for handle_exception
- movi 3, r6
- shlli r6, 30, r6
- getcon sr, r18
- or r18, r6, r6
- putcon r6, ssr
-
- ! SSR is now the current SR with the MD and MMU bits set
- ! i.e. the rte will switch back to priv mode and put
- ! the mmu back on
-
- ! construct spc
- movi handle_exception, r18
- ori r18, 1, r18 ! for safety (do we need this?)
- putcon r18, spc
-
- /* Set args for Non-debug, Not a TLB miss class handler */
-
- ! EXPEVT==0x80 is unused, so 'steal' this value to put the
- ! debug interrupt handler in the vectoring table
- movi 0x80, r2
- movi ret_from_exception, r3
- ori r3, 1, r3
- movi EVENT_FAULT_NOT_TLB, r4
-
- or SP, ZERO, r5
- movi CONFIG_CACHED_MEMORY_OFFSET, r6
- add r6, r5, r5
- getcon KCR1, SP
-
- synco ! for safety
- rte ! -> handle_exception, switch back to priv mode again
-
-LRESVEC_block_end: /* Marker. Unused. */
-
- .balign TEXT_SIZE
-
-/*
- * Second level handler for VBR-based exceptions. Pre-handler.
- * In common to all stack-frame sensitive handlers.
- *
- * Inputs:
- * (KCR0) Current [current task union]
- * (KCR1) Original SP
- * (r2) INTEVT/EXPEVT
- * (r3) appropriate return address
- * (r4) Event (0 = interrupt, 1 = TLB miss fault, 2 = Not TLB miss fault, 3=debug)
- * (r5) Pointer to reg_save_area
- * (SP) Original SP
- *
- * Available registers:
- * (r6)
- * (r18)
- * (tr0)
- *
- */
-handle_exception:
- /* Common 2nd level handler. */
-
- /* First thing we need an appropriate stack pointer */
- getcon SSR, r6
- shlri r6, 30, r6
- andi r6, 1, r6
- pta stack_ok, tr0
- bne r6, ZERO, tr0 /* Original stack pointer is fine */
-
- /* Set stack pointer for user fault */
- getcon KCR0, SP
- movi THREAD_SIZE, r6 /* Point to the end */
- add SP, r6, SP
-
-stack_ok:
-
-/* DEBUG : check for underflow/overflow of the kernel stack */
- pta no_underflow, tr0
- getcon KCR0, r6
- movi 1024, r18
- add r6, r18, r6
- bge SP, r6, tr0 ! ? below 1k from bottom of stack : danger zone
-
-/* Just panic to cause a crash. */
-bad_sp:
- ld.b r63, 0, r6
- nop
-
-no_underflow:
- pta bad_sp, tr0
- getcon kcr0, r6
- movi THREAD_SIZE, r18
- add r18, r6, r6
- bgt SP, r6, tr0 ! sp above the stack
-
- /* Make some room for the BASIC frame. */
- movi -(FRAME_SIZE), r6
- add SP, r6, SP
-
-/* Could do this with no stalling if we had another spare register, but the
- code below will be OK. */
- ld.q r5, SAVED_R2, r6
- ld.q r5, SAVED_R3, r18
- st.q SP, FRAME_R(2), r6
- ld.q r5, SAVED_R4, r6
- st.q SP, FRAME_R(3), r18
- ld.q r5, SAVED_R5, r18
- st.q SP, FRAME_R(4), r6
- ld.q r5, SAVED_R6, r6
- st.q SP, FRAME_R(5), r18
- ld.q r5, SAVED_R18, r18
- st.q SP, FRAME_R(6), r6
- ld.q r5, SAVED_TR0, r6
- st.q SP, FRAME_R(18), r18
- st.q SP, FRAME_T(0), r6
-
- /* Keep old SP around */
- getcon KCR1, r6
-
- /* Save the rest of the general purpose registers */
- st.q SP, FRAME_R(0), r0
- st.q SP, FRAME_R(1), r1
- st.q SP, FRAME_R(7), r7
- st.q SP, FRAME_R(8), r8
- st.q SP, FRAME_R(9), r9
- st.q SP, FRAME_R(10), r10
- st.q SP, FRAME_R(11), r11
- st.q SP, FRAME_R(12), r12
- st.q SP, FRAME_R(13), r13
- st.q SP, FRAME_R(14), r14
-
- /* SP is somewhere else */
- st.q SP, FRAME_R(15), r6
-
- st.q SP, FRAME_R(16), r16
- st.q SP, FRAME_R(17), r17
- /* r18 is saved earlier. */
- st.q SP, FRAME_R(19), r19
- st.q SP, FRAME_R(20), r20
- st.q SP, FRAME_R(21), r21
- st.q SP, FRAME_R(22), r22
- st.q SP, FRAME_R(23), r23
- st.q SP, FRAME_R(24), r24
- st.q SP, FRAME_R(25), r25
- st.q SP, FRAME_R(26), r26
- st.q SP, FRAME_R(27), r27
- st.q SP, FRAME_R(28), r28
- st.q SP, FRAME_R(29), r29
- st.q SP, FRAME_R(30), r30
- st.q SP, FRAME_R(31), r31
- st.q SP, FRAME_R(32), r32
- st.q SP, FRAME_R(33), r33
- st.q SP, FRAME_R(34), r34
- st.q SP, FRAME_R(35), r35
- st.q SP, FRAME_R(36), r36
- st.q SP, FRAME_R(37), r37
- st.q SP, FRAME_R(38), r38
- st.q SP, FRAME_R(39), r39
- st.q SP, FRAME_R(40), r40
- st.q SP, FRAME_R(41), r41
- st.q SP, FRAME_R(42), r42
- st.q SP, FRAME_R(43), r43
- st.q SP, FRAME_R(44), r44
- st.q SP, FRAME_R(45), r45
- st.q SP, FRAME_R(46), r46
- st.q SP, FRAME_R(47), r47
- st.q SP, FRAME_R(48), r48
- st.q SP, FRAME_R(49), r49
- st.q SP, FRAME_R(50), r50
- st.q SP, FRAME_R(51), r51
- st.q SP, FRAME_R(52), r52
- st.q SP, FRAME_R(53), r53
- st.q SP, FRAME_R(54), r54
- st.q SP, FRAME_R(55), r55
- st.q SP, FRAME_R(56), r56
- st.q SP, FRAME_R(57), r57
- st.q SP, FRAME_R(58), r58
- st.q SP, FRAME_R(59), r59
- st.q SP, FRAME_R(60), r60
- st.q SP, FRAME_R(61), r61
- st.q SP, FRAME_R(62), r62
-
- /*
- * Save the S* registers.
- */
- getcon SSR, r61
- st.q SP, FRAME_S(FSSR), r61
- getcon SPC, r62
- st.q SP, FRAME_S(FSPC), r62
- movi -1, r62 /* Reset syscall_nr */
- st.q SP, FRAME_S(FSYSCALL_ID), r62
-
- /* Save the rest of the target registers */
- gettr tr1, r6
- st.q SP, FRAME_T(1), r6
- gettr tr2, r6
- st.q SP, FRAME_T(2), r6
- gettr tr3, r6
- st.q SP, FRAME_T(3), r6
- gettr tr4, r6
- st.q SP, FRAME_T(4), r6
- gettr tr5, r6
- st.q SP, FRAME_T(5), r6
- gettr tr6, r6
- st.q SP, FRAME_T(6), r6
- gettr tr7, r6
- st.q SP, FRAME_T(7), r6
-
- ! setup FP so that unwinder can wind back through nested kernel mode
- ! exceptions
- add SP, ZERO, r14
-
-#define POOR_MANS_STRACE 0
-
-#if POOR_MANS_STRACE
- /* We've pushed all the registers now, so only r2-r4 hold anything
- * useful. Move them into callee save registers */
- or r2, ZERO, r28
- or r3, ZERO, r29
- or r4, ZERO, r30
-
- /* Preserve r2 as the event code */
- movi evt_debug, r3
- ori r3, 1, r3
- ptabs r3, tr0
-
- or SP, ZERO, r6
- getcon TRA, r5
- blink tr0, LINK
-
- or r28, ZERO, r2
- or r29, ZERO, r3
- or r30, ZERO, r4
-#endif
-
-
- /* For syscall and debug race condition, get TRA now */
- getcon TRA, r5
-
- /* We are in a safe position to turn SR.BL off, but set IMASK=0xf
- * Also set FD, to catch FPU usage in the kernel.
- *
- * benedict.gaster@superh.com 29/07/2002
- *
- * On all SH5-101 revisions it is unsafe to raise the IMASK and at the
- * same time change BL from 1->0, as any pending interrupt of a level
- * higher than he previous value of IMASK will leak through and be
- * taken unexpectedly.
- *
- * To avoid this we raise the IMASK and then issue another PUTCON to
- * enable interrupts.
- */
- getcon SR, r6
- movi SR_IMASK | SR_FD, r7
- or r6, r7, r6
- putcon r6, SR
- movi SR_UNBLOCK_EXC, r7
- and r6, r7, r6
- putcon r6, SR
-
-
- /* Now call the appropriate 3rd level handler */
- or r3, ZERO, LINK
- movi trap_jtable, r3
- shlri r2, 3, r2
- ldx.l r2, r3, r3
- shlri r2, 2, r2
- ptabs r3, tr0
- or SP, ZERO, r3
- blink tr0, ZERO
-
-/*
- * Second level handler for VBR-based exceptions. Post-handlers.
- *
- * Post-handlers for interrupts (ret_from_irq), exceptions
- * (ret_from_exception) and common reentrance doors (restore_all
- * to get back to the original context, ret_from_syscall loop to
- * check kernel exiting).
- *
- * ret_with_reschedule and work_notifysig are an inner lables of
- * the ret_from_syscall loop.
- *
- * In common to all stack-frame sensitive handlers.
- *
- * Inputs:
- * (SP) struct pt_regs *, original register's frame pointer (basic)
- *
- */
- .global ret_from_irq
-ret_from_irq:
-#if POOR_MANS_STRACE
- pta evt_debug_ret_from_irq, tr0
- ori SP, 0, r2
- blink tr0, LINK
-#endif
- ld.q SP, FRAME_S(FSSR), r6
- shlri r6, 30, r6
- andi r6, 1, r6
- pta resume_kernel, tr0
- bne r6, ZERO, tr0 /* no further checks */
- STI()
- pta ret_with_reschedule, tr0
- blink tr0, ZERO /* Do not check softirqs */
-
- .global ret_from_exception
-ret_from_exception:
- preempt_stop()
-
-#if POOR_MANS_STRACE
- pta evt_debug_ret_from_exc, tr0
- ori SP, 0, r2
- blink tr0, LINK
-#endif
-
- ld.q SP, FRAME_S(FSSR), r6
- shlri r6, 30, r6
- andi r6, 1, r6
- pta resume_kernel, tr0
- bne r6, ZERO, tr0 /* no further checks */
-
- /* Check softirqs */
-
-#ifdef CONFIG_PREEMPT
- pta ret_from_syscall, tr0
- blink tr0, ZERO
-
-resume_kernel:
- pta restore_all, tr0
-
- getcon KCR0, r6
- ld.l r6, TI_PRE_COUNT, r7
- beq/u r7, ZERO, tr0
-
-need_resched:
- ld.l r6, TI_FLAGS, r7
- movi (1 << TIF_NEED_RESCHED), r8
- and r8, r7, r8
- bne r8, ZERO, tr0
-
- getcon SR, r7
- andi r7, 0xf0, r7
- bne r7, ZERO, tr0
-
- movi ((PREEMPT_ACTIVE >> 16) & 65535), r8
- shori (PREEMPT_ACTIVE & 65535), r8
- st.l r6, TI_PRE_COUNT, r8
-
- STI()
- movi schedule, r7
- ori r7, 1, r7
- ptabs r7, tr1
- blink tr1, LINK
-
- st.l r6, TI_PRE_COUNT, ZERO
- CLI()
-
- pta need_resched, tr1
- blink tr1, ZERO
-#endif
-
- .global ret_from_syscall
-ret_from_syscall:
-
-ret_with_reschedule:
- getcon KCR0, r6 ! r6 contains current_thread_info
- ld.l r6, TI_FLAGS, r7 ! r7 contains current_thread_info->flags
-
- ! FIXME:!!!
- ! no handling of TIF_SYSCALL_TRACE yet!!
-
- movi (1 << TIF_NEED_RESCHED), r8
- and r8, r7, r8
- pta work_resched, tr0
- bne r8, ZERO, tr0
-
- pta restore_all, tr1
-
- movi (1 << TIF_SIGPENDING), r8
- and r8, r7, r8
- pta work_notifysig, tr0
- bne r8, ZERO, tr0
-
- blink tr1, ZERO
-
-work_resched:
- pta ret_from_syscall, tr0
- gettr tr0, LINK
- movi schedule, r6
- ptabs r6, tr0
- blink tr0, ZERO /* Call schedule(), return on top */
-
-work_notifysig:
- gettr tr1, LINK
-
- movi do_signal, r6
- ptabs r6, tr0
- or SP, ZERO, r2
- or ZERO, ZERO, r3
- blink tr0, LINK /* Call do_signal(regs, 0), return here */
-
-restore_all:
- /* Do prefetches */
-
- ld.q SP, FRAME_T(0), r6
- ld.q SP, FRAME_T(1), r7
- ld.q SP, FRAME_T(2), r8
- ld.q SP, FRAME_T(3), r9
- ptabs r6, tr0
- ptabs r7, tr1
- ptabs r8, tr2
- ptabs r9, tr3
- ld.q SP, FRAME_T(4), r6
- ld.q SP, FRAME_T(5), r7
- ld.q SP, FRAME_T(6), r8
- ld.q SP, FRAME_T(7), r9
- ptabs r6, tr4
- ptabs r7, tr5
- ptabs r8, tr6
- ptabs r9, tr7
-
- ld.q SP, FRAME_R(0), r0
- ld.q SP, FRAME_R(1), r1
- ld.q SP, FRAME_R(2), r2
- ld.q SP, FRAME_R(3), r3
- ld.q SP, FRAME_R(4), r4
- ld.q SP, FRAME_R(5), r5
- ld.q SP, FRAME_R(6), r6
- ld.q SP, FRAME_R(7), r7
- ld.q SP, FRAME_R(8), r8
- ld.q SP, FRAME_R(9), r9
- ld.q SP, FRAME_R(10), r10
- ld.q SP, FRAME_R(11), r11
- ld.q SP, FRAME_R(12), r12
- ld.q SP, FRAME_R(13), r13
- ld.q SP, FRAME_R(14), r14
-
- ld.q SP, FRAME_R(16), r16
- ld.q SP, FRAME_R(17), r17
- ld.q SP, FRAME_R(18), r18
- ld.q SP, FRAME_R(19), r19
- ld.q SP, FRAME_R(20), r20
- ld.q SP, FRAME_R(21), r21
- ld.q SP, FRAME_R(22), r22
- ld.q SP, FRAME_R(23), r23
- ld.q SP, FRAME_R(24), r24
- ld.q SP, FRAME_R(25), r25
- ld.q SP, FRAME_R(26), r26
- ld.q SP, FRAME_R(27), r27
- ld.q SP, FRAME_R(28), r28
- ld.q SP, FRAME_R(29), r29
- ld.q SP, FRAME_R(30), r30
- ld.q SP, FRAME_R(31), r31
- ld.q SP, FRAME_R(32), r32
- ld.q SP, FRAME_R(33), r33
- ld.q SP, FRAME_R(34), r34
- ld.q SP, FRAME_R(35), r35
- ld.q SP, FRAME_R(36), r36
- ld.q SP, FRAME_R(37), r37
- ld.q SP, FRAME_R(38), r38
- ld.q SP, FRAME_R(39), r39
- ld.q SP, FRAME_R(40), r40
- ld.q SP, FRAME_R(41), r41
- ld.q SP, FRAME_R(42), r42
- ld.q SP, FRAME_R(43), r43
- ld.q SP, FRAME_R(44), r44
- ld.q SP, FRAME_R(45), r45
- ld.q SP, FRAME_R(46), r46
- ld.q SP, FRAME_R(47), r47
- ld.q SP, FRAME_R(48), r48
- ld.q SP, FRAME_R(49), r49
- ld.q SP, FRAME_R(50), r50
- ld.q SP, FRAME_R(51), r51
- ld.q SP, FRAME_R(52), r52
- ld.q SP, FRAME_R(53), r53
- ld.q SP, FRAME_R(54), r54
- ld.q SP, FRAME_R(55), r55
- ld.q SP, FRAME_R(56), r56
- ld.q SP, FRAME_R(57), r57
- ld.q SP, FRAME_R(58), r58
-
- getcon SR, r59
- movi SR_BLOCK_EXC, r60
- or r59, r60, r59
- putcon r59, SR /* SR.BL = 1, keep nesting out */
- ld.q SP, FRAME_S(FSSR), r61
- ld.q SP, FRAME_S(FSPC), r62
- movi SR_ASID_MASK, r60
- and r59, r60, r59
- andc r61, r60, r61 /* Clear out older ASID */
- or r59, r61, r61 /* Retain current ASID */
- putcon r61, SSR
- putcon r62, SPC
-
- /* Ignore FSYSCALL_ID */
-
- ld.q SP, FRAME_R(59), r59
- ld.q SP, FRAME_R(60), r60
- ld.q SP, FRAME_R(61), r61
- ld.q SP, FRAME_R(62), r62
-
- /* Last touch */
- ld.q SP, FRAME_R(15), SP
- rte
- nop
-
-/*
- * Third level handlers for VBR-based exceptions. Adapting args to
- * and/or deflecting to fourth level handlers.
- *
- * Fourth level handlers interface.
- * Most are C-coded handlers directly pointed by the trap_jtable.
- * (Third = Fourth level)
- * Inputs:
- * (r2) fault/interrupt code, entry number (e.g. NMI = 14,
- * IRL0-3 (0000) = 16, RTLBMISS = 2, SYSCALL = 11, etc ...)
- * (r3) struct pt_regs *, original register's frame pointer
- * (r4) Event (0 = interrupt, 1 = TLB miss fault, 2 = Not TLB miss fault)
- * (r5) TRA control register (for syscall/debug benefit only)
- * (LINK) return address
- * (SP) = r3
- *
- * Kernel TLB fault handlers will get a slightly different interface.
- * (r2) struct pt_regs *, original register's frame pointer
- * (r3) writeaccess, whether it's a store fault as opposed to load fault
- * (r4) execaccess, whether it's a ITLB fault as opposed to DTLB fault
- * (r5) Effective Address of fault
- * (LINK) return address
- * (SP) = r2
- *
- * fpu_error_or_IRQ? is a helper to deflect to the right cause.
- *
- */
-tlb_miss_load:
- or SP, ZERO, r2
- or ZERO, ZERO, r3 /* Read */
- or ZERO, ZERO, r4 /* Data */
- getcon TEA, r5
- pta call_do_page_fault, tr0
- beq ZERO, ZERO, tr0
-
-tlb_miss_store:
- or SP, ZERO, r2
- movi 1, r3 /* Write */
- or ZERO, ZERO, r4 /* Data */
- getcon TEA, r5
- pta call_do_page_fault, tr0
- beq ZERO, ZERO, tr0
-
-itlb_miss_or_IRQ:
- pta its_IRQ, tr0
- beqi/u r4, EVENT_INTERRUPT, tr0
- or SP, ZERO, r2
- or ZERO, ZERO, r3 /* Read */
- movi 1, r4 /* Text */
- getcon TEA, r5
- /* Fall through */
-
-call_do_page_fault:
- movi do_page_fault, r6
- ptabs r6, tr0
- blink tr0, ZERO
-
-fpu_error_or_IRQA:
- pta its_IRQ, tr0
- beqi/l r4, EVENT_INTERRUPT, tr0
-#ifndef CONFIG_NOFPU_SUPPORT
- movi do_fpu_state_restore, r6
-#else
- movi do_exception_error, r6
-#endif
- ptabs r6, tr0
- blink tr0, ZERO
-
-fpu_error_or_IRQB:
- pta its_IRQ, tr0
- beqi/l r4, EVENT_INTERRUPT, tr0
-#ifndef CONFIG_NOFPU_SUPPORT
- movi do_fpu_state_restore, r6
-#else
- movi do_exception_error, r6
-#endif
- ptabs r6, tr0
- blink tr0, ZERO
-
-its_IRQ:
- movi do_IRQ, r6
- ptabs r6, tr0
- blink tr0, ZERO
-
-/*
- * system_call/unknown_trap third level handler:
- *
- * Inputs:
- * (r2) fault/interrupt code, entry number (TRAP = 11)
- * (r3) struct pt_regs *, original register's frame pointer
- * (r4) Not used. Event (0=interrupt, 1=TLB miss fault, 2=Not TLB miss fault)
- * (r5) TRA Control Reg (0x00xyzzzz: x=1 SYSCALL, y = #args, z=nr)
- * (SP) = r3
- * (LINK) return address: ret_from_exception
- * (*r3) Syscall parms: SC#, arg0, arg1, ..., arg5 in order (Saved r2/r7)
- *
- * Outputs:
- * (*r3) Syscall reply (Saved r2)
- * (LINK) In case of syscall only it can be scrapped.
- * Common second level post handler will be ret_from_syscall.
- * Common (non-trace) exit point to that is syscall_ret (saving
- * result to r2). Common bad exit point is syscall_bad (returning
- * ENOSYS then saved to r2).
- *
- */
-
-unknown_trap:
- /* Unknown Trap or User Trace */
- movi do_unknown_trapa, r6
- ptabs r6, tr0
- ld.q r3, FRAME_R(9), r2 /* r2 = #arg << 16 | syscall # */
- andi r2, 0x1ff, r2 /* r2 = syscall # */
- blink tr0, LINK
-
- pta syscall_ret, tr0
- blink tr0, ZERO
-
- /* New syscall implementation*/
-system_call:
- pta unknown_trap, tr0
- or r5, ZERO, r4 /* TRA (=r5) -> r4 */
- shlri r4, 20, r4
- bnei r4, 1, tr0 /* unknown_trap if not 0x1yzzzz */
-
- /* It's a system call */
- st.q r3, FRAME_S(FSYSCALL_ID), r5 /* ID (0x1yzzzz) -> stack */
- andi r5, 0x1ff, r5 /* syscall # -> r5 */
-
- STI()
-
- pta syscall_allowed, tr0
- movi NR_syscalls - 1, r4 /* Last valid */
- bgeu/l r4, r5, tr0
-
-syscall_bad:
- /* Return ENOSYS ! */
- movi -(ENOSYS), r2 /* Fall-through */
-
- .global syscall_ret
-syscall_ret:
- st.q SP, FRAME_R(9), r2 /* Expecting SP back to BASIC frame */
-
-#if POOR_MANS_STRACE
- /* nothing useful in registers at this point */
-
- movi evt_debug2, r5
- ori r5, 1, r5
- ptabs r5, tr0
- ld.q SP, FRAME_R(9), r2
- or SP, ZERO, r3
- blink tr0, LINK
-#endif
-
- ld.q SP, FRAME_S(FSPC), r2
- addi r2, 4, r2 /* Move PC, being pre-execution event */
- st.q SP, FRAME_S(FSPC), r2
- pta ret_from_syscall, tr0
- blink tr0, ZERO
-
-
-/* A different return path for ret_from_fork, because we now need
- * to call schedule_tail with the later kernels. Because prev is
- * loaded into r2 by switch_to() means we can just call it straight away
- */
-
-.global ret_from_fork
-ret_from_fork:
-
- movi schedule_tail,r5
- ori r5, 1, r5
- ptabs r5, tr0
- blink tr0, LINK
-
-#if POOR_MANS_STRACE
- /* nothing useful in registers at this point */
-
- movi evt_debug2, r5
- ori r5, 1, r5
- ptabs r5, tr0
- ld.q SP, FRAME_R(9), r2
- or SP, ZERO, r3
- blink tr0, LINK
-#endif
-
- ld.q SP, FRAME_S(FSPC), r2
- addi r2, 4, r2 /* Move PC, being pre-execution event */
- st.q SP, FRAME_S(FSPC), r2
- pta ret_from_syscall, tr0
- blink tr0, ZERO
-
-
-
-syscall_allowed:
- /* Use LINK to deflect the exit point, default is syscall_ret */
- pta syscall_ret, tr0
- gettr tr0, LINK
- pta syscall_notrace, tr0
-
- getcon KCR0, r2
- ld.l r2, TI_FLAGS, r4
- movi (1 << TIF_SYSCALL_TRACE), r6
- and r6, r4, r6
- beq/l r6, ZERO, tr0
-
- /* Trace it by calling syscall_trace before and after */
- movi syscall_trace, r4
- ptabs r4, tr0
- blink tr0, LINK
- /* Reload syscall number as r5 is trashed by syscall_trace */
- ld.q SP, FRAME_S(FSYSCALL_ID), r5
- andi r5, 0x1ff, r5
-
- pta syscall_ret_trace, tr0
- gettr tr0, LINK
-
-syscall_notrace:
- /* Now point to the appropriate 4th level syscall handler */
- movi sys_call_table, r4
- shlli r5, 2, r5
- ldx.l r4, r5, r5
- ptabs r5, tr0
-
- /* Prepare original args */
- ld.q SP, FRAME_R(2), r2
- ld.q SP, FRAME_R(3), r3
- ld.q SP, FRAME_R(4), r4
- ld.q SP, FRAME_R(5), r5
- ld.q SP, FRAME_R(6), r6
- ld.q SP, FRAME_R(7), r7
-
- /* And now the trick for those syscalls requiring regs * ! */
- or SP, ZERO, r8
-
- /* Call it */
- blink tr0, ZERO /* LINK is already properly set */
-
-syscall_ret_trace:
- /* We get back here only if under trace */
- st.q SP, FRAME_R(9), r2 /* Save return value */
-
- movi syscall_trace, LINK
- ptabs LINK, tr0
- blink tr0, LINK
-
- /* This needs to be done after any syscall tracing */
- ld.q SP, FRAME_S(FSPC), r2
- addi r2, 4, r2 /* Move PC, being pre-execution event */
- st.q SP, FRAME_S(FSPC), r2
-
- pta ret_from_syscall, tr0
- blink tr0, ZERO /* Resume normal return sequence */
-
-/*
- * --- Switch to running under a particular ASID and return the previous ASID value
- * --- The caller is assumed to have done a cli before calling this.
- *
- * Input r2 : new ASID
- * Output r2 : old ASID
- */
-
- .global switch_and_save_asid
-switch_and_save_asid:
- getcon sr, r0
- movi 255, r4
- shlli r4, 16, r4 /* r4 = mask to select ASID */
- and r0, r4, r3 /* r3 = shifted old ASID */
- andi r2, 255, r2 /* mask down new ASID */
- shlli r2, 16, r2 /* align new ASID against SR.ASID */
- andc r0, r4, r0 /* efface old ASID from SR */
- or r0, r2, r0 /* insert the new ASID */
- putcon r0, ssr
- movi 1f, r0
- putcon r0, spc
- rte
- nop
-1:
- ptabs LINK, tr0
- shlri r3, 16, r2 /* r2 = old ASID */
- blink tr0, r63
-
- .global route_to_panic_handler
-route_to_panic_handler:
- /* Switch to real mode, goto panic_handler, don't return. Useful for
- last-chance debugging, e.g. if no output wants to go to the console.
- */
-
- movi panic_handler - CONFIG_CACHED_MEMORY_OFFSET, r1
- ptabs r1, tr0
- pta 1f, tr1
- gettr tr1, r0
- putcon r0, spc
- getcon sr, r0
- movi 1, r1
- shlli r1, 31, r1
- andc r0, r1, r0
- putcon r0, ssr
- rte
- nop
-1: /* Now in real mode */
- blink tr0, r63
- nop
-
- .global peek_real_address_q
-peek_real_address_q:
- /* Two args:
- r2 : real mode address to peek
- r2(out) : result quadword
-
- This is provided as a cheapskate way of manipulating device
- registers for debugging (to avoid the need to onchip_remap the debug
- module, and to avoid the need to onchip_remap the watchpoint
- controller in a way that identity maps sufficient bits to avoid the
- SH5-101 cut2 silicon defect).
-
- This code is not performance critical
- */
-
- add.l r2, r63, r2 /* sign extend address */
- getcon sr, r0 /* r0 = saved original SR */
- movi 1, r1
- shlli r1, 28, r1
- or r0, r1, r1 /* r0 with block bit set */
- putcon r1, sr /* now in critical section */
- movi 1, r36
- shlli r36, 31, r36
- andc r1, r36, r1 /* turn sr.mmu off in real mode section */
-
- putcon r1, ssr
- movi .peek0 - CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
- movi 1f, r37 /* virtual mode return addr */
- putcon r36, spc
-
- synco
- rte
- nop
-
-.peek0: /* come here in real mode, don't touch caches!!
- still in critical section (sr.bl==1) */
- putcon r0, ssr
- putcon r37, spc
- /* Here's the actual peek. If the address is bad, all bets are now off
- * what will happen (handlers invoked in real-mode = bad news) */
- ld.q r2, 0, r2
- synco
- rte /* Back to virtual mode */
- nop
-
-1:
- ptabs LINK, tr0
- blink tr0, r63
-
- .global poke_real_address_q
-poke_real_address_q:
- /* Two args:
- r2 : real mode address to poke
- r3 : quadword value to write.
-
- This is provided as a cheapskate way of manipulating device
- registers for debugging (to avoid the need to onchip_remap the debug
- module, and to avoid the need to onchip_remap the watchpoint
- controller in a way that identity maps sufficient bits to avoid the
- SH5-101 cut2 silicon defect).
-
- This code is not performance critical
- */
-
- add.l r2, r63, r2 /* sign extend address */
- getcon sr, r0 /* r0 = saved original SR */
- movi 1, r1
- shlli r1, 28, r1
- or r0, r1, r1 /* r0 with block bit set */
- putcon r1, sr /* now in critical section */
- movi 1, r36
- shlli r36, 31, r36
- andc r1, r36, r1 /* turn sr.mmu off in real mode section */
-
- putcon r1, ssr
- movi .poke0-CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
- movi 1f, r37 /* virtual mode return addr */
- putcon r36, spc
-
- synco
- rte
- nop
-
-.poke0: /* come here in real mode, don't touch caches!!
- still in critical section (sr.bl==1) */
- putcon r0, ssr
- putcon r37, spc
- /* Here's the actual poke. If the address is bad, all bets are now off
- * what will happen (handlers invoked in real-mode = bad news) */
- st.q r2, 0, r3
- synco
- rte /* Back to virtual mode */
- nop
-
-1:
- ptabs LINK, tr0
- blink tr0, r63
-
-/*
- * --- User Access Handling Section
- */
-
-/*
- * User Access support. It all moved to non inlined Assembler
- * functions in here.
- *
- * __kernel_size_t __copy_user(void *__to, const void *__from,
- * __kernel_size_t __n)
- *
- * Inputs:
- * (r2) target address
- * (r3) source address
- * (r4) size in bytes
- *
- * Ouputs:
- * (*r2) target data
- * (r2) non-copied bytes
- *
- * If a fault occurs on the user pointer, bail out early and return the
- * number of bytes not copied in r2.
- * Strategy : for large blocks, call a real memcpy function which can
- * move >1 byte at a time using unaligned ld/st instructions, and can
- * manipulate the cache using prefetch + alloco to improve the speed
- * further. If a fault occurs in that function, just revert to the
- * byte-by-byte approach used for small blocks; this is rare so the
- * performance hit for that case does not matter.
- *
- * For small blocks it's not worth the overhead of setting up and calling
- * the memcpy routine; do the copy a byte at a time.
- *
- */
- .global __copy_user
-__copy_user:
- pta __copy_user_byte_by_byte, tr1
- movi 16, r0 ! this value is a best guess, should tune it by benchmarking
- bge/u r0, r4, tr1
- pta copy_user_memcpy, tr0
- addi SP, -32, SP
- /* Save arguments in case we have to fix-up unhandled page fault */
- st.q SP, 0, r2
- st.q SP, 8, r3
- st.q SP, 16, r4
- st.q SP, 24, r35 ! r35 is callee-save
- /* Save LINK in a register to reduce RTS time later (otherwise
- ld SP,*,LINK;ptabs LINK;trn;blink trn,r63 becomes a critical path) */
- ori LINK, 0, r35
- blink tr0, LINK
-
- /* Copy completed normally if we get back here */
- ptabs r35, tr0
- ld.q SP, 24, r35
- /* don't restore r2-r4, pointless */
- /* set result=r2 to zero as the copy must have succeeded. */
- or r63, r63, r2
- addi SP, 32, SP
- blink tr0, r63 ! RTS
-
- .global __copy_user_fixup
-__copy_user_fixup:
- /* Restore stack frame */
- ori r35, 0, LINK
- ld.q SP, 24, r35
- ld.q SP, 16, r4
- ld.q SP, 8, r3
- ld.q SP, 0, r2
- addi SP, 32, SP
- /* Fall through to original code, in the 'same' state we entered with */
-
-/* The slow byte-by-byte method is used if the fast copy traps due to a bad
- user address. In that rare case, the speed drop can be tolerated. */
-__copy_user_byte_by_byte:
- pta ___copy_user_exit, tr1
- pta ___copy_user1, tr0
- beq/u r4, r63, tr1 /* early exit for zero length copy */
- sub r2, r3, r0
- addi r0, -1, r0
-
-___copy_user1:
- ld.b r3, 0, r5 /* Fault address 1 */
-
- /* Could rewrite this to use just 1 add, but the second comes 'free'
- due to load latency */
- addi r3, 1, r3
- addi r4, -1, r4 /* No real fixup required */
-___copy_user2:
- stx.b r3, r0, r5 /* Fault address 2 */
- bne r4, ZERO, tr0
-
-___copy_user_exit:
- or r4, ZERO, r2
- ptabs LINK, tr0
- blink tr0, ZERO
-
-/*
- * __kernel_size_t __clear_user(void *addr, __kernel_size_t size)
- *
- * Inputs:
- * (r2) target address
- * (r3) size in bytes
- *
- * Ouputs:
- * (*r2) zero-ed target data
- * (r2) non-zero-ed bytes
- */
- .global __clear_user
-__clear_user:
- pta ___clear_user_exit, tr1
- pta ___clear_user1, tr0
- beq/u r3, r63, tr1
-
-___clear_user1:
- st.b r2, 0, ZERO /* Fault address */
- addi r2, 1, r2
- addi r3, -1, r3 /* No real fixup required */
- bne r3, ZERO, tr0
-
-___clear_user_exit:
- or r3, ZERO, r2
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
-/*
- * int __strncpy_from_user(unsigned long __dest, unsigned long __src,
- * int __count)
- *
- * Inputs:
- * (r2) target address
- * (r3) source address
- * (r4) maximum size in bytes
- *
- * Ouputs:
- * (*r2) copied data
- * (r2) -EFAULT (in case of faulting)
- * copied data (otherwise)
- */
- .global __strncpy_from_user
-__strncpy_from_user:
- pta ___strncpy_from_user1, tr0
- pta ___strncpy_from_user_done, tr1
- or r4, ZERO, r5 /* r5 = original count */
- beq/u r4, r63, tr1 /* early exit if r4==0 */
- movi -(EFAULT), r6 /* r6 = reply, no real fixup */
- or ZERO, ZERO, r7 /* r7 = data, clear top byte of data */
-
-___strncpy_from_user1:
- ld.b r3, 0, r7 /* Fault address: only in reading */
- st.b r2, 0, r7
- addi r2, 1, r2
- addi r3, 1, r3
- beq/u ZERO, r7, tr1
- addi r4, -1, r4 /* return real number of copied bytes */
- bne/l ZERO, r4, tr0
-
-___strncpy_from_user_done:
- sub r5, r4, r6 /* If done, return copied */
-
-___strncpy_from_user_exit:
- or r6, ZERO, r2
- ptabs LINK, tr0
- blink tr0, ZERO
-
-/*
- * extern long __strnlen_user(const char *__s, long __n)
- *
- * Inputs:
- * (r2) source address
- * (r3) source size in bytes
- *
- * Ouputs:
- * (r2) -EFAULT (in case of faulting)
- * string length (otherwise)
- */
- .global __strnlen_user
-__strnlen_user:
- pta ___strnlen_user_set_reply, tr0
- pta ___strnlen_user1, tr1
- or ZERO, ZERO, r5 /* r5 = counter */
- movi -(EFAULT), r6 /* r6 = reply, no real fixup */
- or ZERO, ZERO, r7 /* r7 = data, clear top byte of data */
- beq r3, ZERO, tr0
-
-___strnlen_user1:
- ldx.b r2, r5, r7 /* Fault address: only in reading */
- addi r3, -1, r3 /* No real fixup */
- addi r5, 1, r5
- beq r3, ZERO, tr0
- bne r7, ZERO, tr1
-! The line below used to be active. This meant led to a junk byte lying between each pair
-! of entries in the argv & envp structures in memory. Whilst the program saw the right data
-! via the argv and envp arguments to main, it meant the 'flat' representation visible through
-! /proc/$pid/cmdline was corrupt, causing trouble with ps, for example.
-! addi r5, 1, r5 /* Include '\0' */
-
-___strnlen_user_set_reply:
- or r5, ZERO, r6 /* If done, return counter */
-
-___strnlen_user_exit:
- or r6, ZERO, r2
- ptabs LINK, tr0
- blink tr0, ZERO
-
-/*
- * extern long __get_user_asm_?(void *val, long addr)
- *
- * Inputs:
- * (r2) dest address
- * (r3) source address (in User Space)
- *
- * Ouputs:
- * (r2) -EFAULT (faulting)
- * 0 (not faulting)
- */
- .global __get_user_asm_b
-__get_user_asm_b:
- or r2, ZERO, r4
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___get_user_asm_b1:
- ld.b r3, 0, r5 /* r5 = data */
- st.b r4, 0, r5
- or ZERO, ZERO, r2
-
-___get_user_asm_b_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __get_user_asm_w
-__get_user_asm_w:
- or r2, ZERO, r4
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___get_user_asm_w1:
- ld.w r3, 0, r5 /* r5 = data */
- st.w r4, 0, r5
- or ZERO, ZERO, r2
-
-___get_user_asm_w_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __get_user_asm_l
-__get_user_asm_l:
- or r2, ZERO, r4
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___get_user_asm_l1:
- ld.l r3, 0, r5 /* r5 = data */
- st.l r4, 0, r5
- or ZERO, ZERO, r2
-
-___get_user_asm_l_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __get_user_asm_q
-__get_user_asm_q:
- or r2, ZERO, r4
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___get_user_asm_q1:
- ld.q r3, 0, r5 /* r5 = data */
- st.q r4, 0, r5
- or ZERO, ZERO, r2
-
-___get_user_asm_q_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-/*
- * extern long __put_user_asm_?(void *pval, long addr)
- *
- * Inputs:
- * (r2) kernel pointer to value
- * (r3) dest address (in User Space)
- *
- * Ouputs:
- * (r2) -EFAULT (faulting)
- * 0 (not faulting)
- */
- .global __put_user_asm_b
-__put_user_asm_b:
- ld.b r2, 0, r4 /* r4 = data */
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___put_user_asm_b1:
- st.b r3, 0, r4
- or ZERO, ZERO, r2
-
-___put_user_asm_b_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __put_user_asm_w
-__put_user_asm_w:
- ld.w r2, 0, r4 /* r4 = data */
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___put_user_asm_w1:
- st.w r3, 0, r4
- or ZERO, ZERO, r2
-
-___put_user_asm_w_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __put_user_asm_l
-__put_user_asm_l:
- ld.l r2, 0, r4 /* r4 = data */
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___put_user_asm_l1:
- st.l r3, 0, r4
- or ZERO, ZERO, r2
-
-___put_user_asm_l_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __put_user_asm_q
-__put_user_asm_q:
- ld.q r2, 0, r4 /* r4 = data */
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___put_user_asm_q1:
- st.q r3, 0, r4
- or ZERO, ZERO, r2
-
-___put_user_asm_q_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-panic_stash_regs:
- /* The idea is : when we get an unhandled panic, we dump the registers
- to a known memory location, the just sit in a tight loop.
- This allows the human to look at the memory region through the GDB
- session (assuming the debug module's SHwy initiator isn't locked up
- or anything), to hopefully analyze the cause of the panic. */
-
- /* On entry, former r15 (SP) is in DCR
- former r0 is at resvec_saved_area + 0
- former r1 is at resvec_saved_area + 8
- former tr0 is at resvec_saved_area + 32
- DCR is the only register whose value is lost altogether.
- */
-
- movi 0xffffffff80000000, r0 ! phy of dump area
- ld.q SP, 0x000, r1 ! former r0
- st.q r0, 0x000, r1
- ld.q SP, 0x008, r1 ! former r1
- st.q r0, 0x008, r1
- st.q r0, 0x010, r2
- st.q r0, 0x018, r3
- st.q r0, 0x020, r4
- st.q r0, 0x028, r5
- st.q r0, 0x030, r6
- st.q r0, 0x038, r7
- st.q r0, 0x040, r8
- st.q r0, 0x048, r9
- st.q r0, 0x050, r10
- st.q r0, 0x058, r11
- st.q r0, 0x060, r12
- st.q r0, 0x068, r13
- st.q r0, 0x070, r14
- getcon dcr, r14
- st.q r0, 0x078, r14
- st.q r0, 0x080, r16
- st.q r0, 0x088, r17
- st.q r0, 0x090, r18
- st.q r0, 0x098, r19
- st.q r0, 0x0a0, r20
- st.q r0, 0x0a8, r21
- st.q r0, 0x0b0, r22
- st.q r0, 0x0b8, r23
- st.q r0, 0x0c0, r24
- st.q r0, 0x0c8, r25
- st.q r0, 0x0d0, r26
- st.q r0, 0x0d8, r27
- st.q r0, 0x0e0, r28
- st.q r0, 0x0e8, r29
- st.q r0, 0x0f0, r30
- st.q r0, 0x0f8, r31
- st.q r0, 0x100, r32
- st.q r0, 0x108, r33
- st.q r0, 0x110, r34
- st.q r0, 0x118, r35
- st.q r0, 0x120, r36
- st.q r0, 0x128, r37
- st.q r0, 0x130, r38
- st.q r0, 0x138, r39
- st.q r0, 0x140, r40
- st.q r0, 0x148, r41
- st.q r0, 0x150, r42
- st.q r0, 0x158, r43
- st.q r0, 0x160, r44
- st.q r0, 0x168, r45
- st.q r0, 0x170, r46
- st.q r0, 0x178, r47
- st.q r0, 0x180, r48
- st.q r0, 0x188, r49
- st.q r0, 0x190, r50
- st.q r0, 0x198, r51
- st.q r0, 0x1a0, r52
- st.q r0, 0x1a8, r53
- st.q r0, 0x1b0, r54
- st.q r0, 0x1b8, r55
- st.q r0, 0x1c0, r56
- st.q r0, 0x1c8, r57
- st.q r0, 0x1d0, r58
- st.q r0, 0x1d8, r59
- st.q r0, 0x1e0, r60
- st.q r0, 0x1e8, r61
- st.q r0, 0x1f0, r62
- st.q r0, 0x1f8, r63 ! bogus, but for consistency's sake...
-
- ld.q SP, 0x020, r1 ! former tr0
- st.q r0, 0x200, r1
- gettr tr1, r1
- st.q r0, 0x208, r1
- gettr tr2, r1
- st.q r0, 0x210, r1
- gettr tr3, r1
- st.q r0, 0x218, r1
- gettr tr4, r1
- st.q r0, 0x220, r1
- gettr tr5, r1
- st.q r0, 0x228, r1
- gettr tr6, r1
- st.q r0, 0x230, r1
- gettr tr7, r1
- st.q r0, 0x238, r1
-
- getcon sr, r1
- getcon ssr, r2
- getcon pssr, r3
- getcon spc, r4
- getcon pspc, r5
- getcon intevt, r6
- getcon expevt, r7
- getcon pexpevt, r8
- getcon tra, r9
- getcon tea, r10
- getcon kcr0, r11
- getcon kcr1, r12
- getcon vbr, r13
- getcon resvec, r14
-
- st.q r0, 0x240, r1
- st.q r0, 0x248, r2
- st.q r0, 0x250, r3
- st.q r0, 0x258, r4
- st.q r0, 0x260, r5
- st.q r0, 0x268, r6
- st.q r0, 0x270, r7
- st.q r0, 0x278, r8
- st.q r0, 0x280, r9
- st.q r0, 0x288, r10
- st.q r0, 0x290, r11
- st.q r0, 0x298, r12
- st.q r0, 0x2a0, r13
- st.q r0, 0x2a8, r14
-
- getcon SPC,r2
- getcon SSR,r3
- getcon EXPEVT,r4
- /* Prepare to jump to C - physical address */
- movi panic_handler-CONFIG_CACHED_MEMORY_OFFSET, r1
- ori r1, 1, r1
- ptabs r1, tr0
- getcon DCR, SP
- blink tr0, ZERO
- nop
- nop
- nop
- nop
-
-
-
-
-/*
- * --- Signal Handling Section
- */
-
-/*
- * extern long long _sa_default_rt_restorer
- * extern long long _sa_default_restorer
- *
- * or, better,
- *
- * extern void _sa_default_rt_restorer(void)
- * extern void _sa_default_restorer(void)
- *
- * Code prototypes to do a sys_rt_sigreturn() or sys_sysreturn()
- * from user space. Copied into user space by signal management.
- * Both must be quad aligned and 2 quad long (4 instructions).
- *
- */
- .balign 8
- .global sa_default_rt_restorer
-sa_default_rt_restorer:
- movi 0x10, r9
- shori __NR_rt_sigreturn, r9
- trapa r9
- nop
-
- .balign 8
- .global sa_default_restorer
-sa_default_restorer:
- movi 0x10, r9
- shori __NR_sigreturn, r9
- trapa r9
- nop
-
-/*
- * --- __ex_table Section
- */
-
-/*
- * User Access Exception Table.
- */
- .section __ex_table, "a"
-
- .global asm_uaccess_start /* Just a marker */
-asm_uaccess_start:
-
- .long ___copy_user1, ___copy_user_exit
- .long ___copy_user2, ___copy_user_exit
- .long ___clear_user1, ___clear_user_exit
- .long ___strncpy_from_user1, ___strncpy_from_user_exit
- .long ___strnlen_user1, ___strnlen_user_exit
- .long ___get_user_asm_b1, ___get_user_asm_b_exit
- .long ___get_user_asm_w1, ___get_user_asm_w_exit
- .long ___get_user_asm_l1, ___get_user_asm_l_exit
- .long ___get_user_asm_q1, ___get_user_asm_q_exit
- .long ___put_user_asm_b1, ___put_user_asm_b_exit
- .long ___put_user_asm_w1, ___put_user_asm_w_exit
- .long ___put_user_asm_l1, ___put_user_asm_l_exit
- .long ___put_user_asm_q1, ___put_user_asm_q_exit
-
- .global asm_uaccess_end /* Just a marker */
-asm_uaccess_end:
-
-
-
-
-/*
- * --- .text.init Section
- */
-
- .section .text.init, "ax"
-
-/*
- * void trap_init (void)
- *
- */
- .global trap_init
-trap_init:
- addi SP, -24, SP /* Room to save r28/r29/r30 */
- st.q SP, 0, r28
- st.q SP, 8, r29
- st.q SP, 16, r30
-
- /* Set VBR and RESVEC */
- movi LVBR_block, r19
- andi r19, -4, r19 /* reset MMUOFF + reserved */
- /* For RESVEC exceptions we force the MMU off, which means we need the
- physical address. */
- movi LRESVEC_block-CONFIG_CACHED_MEMORY_OFFSET, r20
- andi r20, -4, r20 /* reset reserved */
- ori r20, 1, r20 /* set MMUOFF */
- putcon r19, VBR
- putcon r20, RESVEC
-
- /* Sanity check */
- movi LVBR_block_end, r21
- andi r21, -4, r21
- movi BLOCK_SIZE, r29 /* r29 = expected size */
- or r19, ZERO, r30
- add r19, r29, r19
-
- /*
- * Ugly, but better loop forever now than crash afterwards.
- * We should print a message, but if we touch LVBR or
- * LRESVEC blocks we should not be surprised if we get stuck
- * in trap_init().
- */
- pta trap_init_loop, tr1
- gettr tr1, r28 /* r28 = trap_init_loop */
- sub r21, r30, r30 /* r30 = actual size */
-
- /*
- * VBR/RESVEC handlers overlap by being bigger than
- * allowed. Very bad. Just loop forever.
- * (r28) panic/loop address
- * (r29) expected size
- * (r30) actual size
- */
-trap_init_loop:
- bne r19, r21, tr1
-
- /* Now that exception vectors are set up reset SR.BL */
- getcon SR, r22
- movi SR_UNBLOCK_EXC, r23
- and r22, r23, r22
- putcon r22, SR
-
- addi SP, 24, SP
- ptabs LINK, tr0
- blink tr0, ZERO
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/fpu.c
- *
- * Copyright (C) 2001 Manuela Cirronis, Paolo Alberelli
- * Copyright (C) 2002 STMicroelectronics Limited
- * Author : Stuart Menefy
- *
- * Started from SH4 version:
- * Copyright (C) 1999, 2000 Kaz Kojima & Niibe Yutaka
- *
- */
-
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <asm/processor.h>
-#include <asm/user.h>
-#include <asm/io.h>
-
-/*
- * Initially load the FPU with signalling NANS. This bit pattern
- * has the property that no matter whether considered as single or as
- * double precision, it still represents a signalling NAN.
- */
-#define sNAN64 0xFFFFFFFFFFFFFFFFULL
-#define sNAN32 0xFFFFFFFFUL
-
-static union sh_fpu_union init_fpuregs = {
- .hard = {
- .fp_regs = { [0 ... 63] = sNAN32 },
- .fpscr = FPSCR_INIT
- }
-};
-
-inline void fpsave(struct sh_fpu_hard_struct *fpregs)
-{
- asm volatile("fst.p %0, (0*8), fp0\n\t"
- "fst.p %0, (1*8), fp2\n\t"
- "fst.p %0, (2*8), fp4\n\t"
- "fst.p %0, (3*8), fp6\n\t"
- "fst.p %0, (4*8), fp8\n\t"
- "fst.p %0, (5*8), fp10\n\t"
- "fst.p %0, (6*8), fp12\n\t"
- "fst.p %0, (7*8), fp14\n\t"
- "fst.p %0, (8*8), fp16\n\t"
- "fst.p %0, (9*8), fp18\n\t"
- "fst.p %0, (10*8), fp20\n\t"
- "fst.p %0, (11*8), fp22\n\t"
- "fst.p %0, (12*8), fp24\n\t"
- "fst.p %0, (13*8), fp26\n\t"
- "fst.p %0, (14*8), fp28\n\t"
- "fst.p %0, (15*8), fp30\n\t"
- "fst.p %0, (16*8), fp32\n\t"
- "fst.p %0, (17*8), fp34\n\t"
- "fst.p %0, (18*8), fp36\n\t"
- "fst.p %0, (19*8), fp38\n\t"
- "fst.p %0, (20*8), fp40\n\t"
- "fst.p %0, (21*8), fp42\n\t"
- "fst.p %0, (22*8), fp44\n\t"
- "fst.p %0, (23*8), fp46\n\t"
- "fst.p %0, (24*8), fp48\n\t"
- "fst.p %0, (25*8), fp50\n\t"
- "fst.p %0, (26*8), fp52\n\t"
- "fst.p %0, (27*8), fp54\n\t"
- "fst.p %0, (28*8), fp56\n\t"
- "fst.p %0, (29*8), fp58\n\t"
- "fst.p %0, (30*8), fp60\n\t"
- "fst.p %0, (31*8), fp62\n\t"
-
- "fgetscr fr63\n\t"
- "fst.s %0, (32*8), fr63\n\t"
- : /* no output */
- : "r" (fpregs)
- : "memory");
-}
-
-
-static inline void
-fpload(struct sh_fpu_hard_struct *fpregs)
-{
- asm volatile("fld.p %0, (0*8), fp0\n\t"
- "fld.p %0, (1*8), fp2\n\t"
- "fld.p %0, (2*8), fp4\n\t"
- "fld.p %0, (3*8), fp6\n\t"
- "fld.p %0, (4*8), fp8\n\t"
- "fld.p %0, (5*8), fp10\n\t"
- "fld.p %0, (6*8), fp12\n\t"
- "fld.p %0, (7*8), fp14\n\t"
- "fld.p %0, (8*8), fp16\n\t"
- "fld.p %0, (9*8), fp18\n\t"
- "fld.p %0, (10*8), fp20\n\t"
- "fld.p %0, (11*8), fp22\n\t"
- "fld.p %0, (12*8), fp24\n\t"
- "fld.p %0, (13*8), fp26\n\t"
- "fld.p %0, (14*8), fp28\n\t"
- "fld.p %0, (15*8), fp30\n\t"
- "fld.p %0, (16*8), fp32\n\t"
- "fld.p %0, (17*8), fp34\n\t"
- "fld.p %0, (18*8), fp36\n\t"
- "fld.p %0, (19*8), fp38\n\t"
- "fld.p %0, (20*8), fp40\n\t"
- "fld.p %0, (21*8), fp42\n\t"
- "fld.p %0, (22*8), fp44\n\t"
- "fld.p %0, (23*8), fp46\n\t"
- "fld.p %0, (24*8), fp48\n\t"
- "fld.p %0, (25*8), fp50\n\t"
- "fld.p %0, (26*8), fp52\n\t"
- "fld.p %0, (27*8), fp54\n\t"
- "fld.p %0, (28*8), fp56\n\t"
- "fld.p %0, (29*8), fp58\n\t"
- "fld.p %0, (30*8), fp60\n\t"
-
- "fld.s %0, (32*8), fr63\n\t"
- "fputscr fr63\n\t"
-
- "fld.p %0, (31*8), fp62\n\t"
- : /* no output */
- : "r" (fpregs) );
-}
-
-void fpinit(struct sh_fpu_hard_struct *fpregs)
-{
- *fpregs = init_fpuregs.hard;
-}
-
-asmlinkage void
-do_fpu_error(unsigned long ex, struct pt_regs *regs)
-{
- struct task_struct *tsk = current;
-
- regs->pc += 4;
-
- tsk->thread.trap_no = 11;
- tsk->thread.error_code = 0;
- force_sig(SIGFPE, tsk);
-}
-
-
-asmlinkage void
-do_fpu_state_restore(unsigned long ex, struct pt_regs *regs)
-{
- void die(const char *str, struct pt_regs *regs, long err);
-
- if (! user_mode(regs))
- die("FPU used in kernel", regs, ex);
-
- regs->sr &= ~SR_FD;
-
- if (last_task_used_math == current)
- return;
-
- grab_fpu();
- if (last_task_used_math != NULL) {
- /* Other processes fpu state, save away */
- fpsave(&last_task_used_math->thread.fpu.hard);
- }
- last_task_used_math = current;
- if (current->used_math) {
- fpload(¤t->thread.fpu.hard);
- } else {
- /* First time FPU user. */
- fpload(&init_fpuregs.hard);
- current->used_math = 1;
- }
- release_fpu();
-}
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/head.S
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- *
- * benedict.gaster@superh.com: 2nd May 2002
- * Moved definition of empty_zero_page to its own section allowing
- * it to be placed at an absolute address known at load time.
- *
- * lethal@linux-sh.org: 9th May 2003
- * Kill off GLOBAL_NAME() usage.
- *
- * lethal@linux-sh.org: 8th May 2004
- * Add early SCIF console DTLB mapping.
- */
-
-#include <linux/config.h>
-
-#include <asm/page.h>
-#include <asm/mmu_context.h>
-#include <asm/cache.h>
-#include <asm/tlb.h>
-#include <asm/processor.h>
-#include <asm/registers.h>
-#include <asm/thread_info.h>
-
-/*
- * MMU defines: TLB boundaries.
- */
-
-#define MMUIR_FIRST ITLB_FIXED
-#define MMUIR_END ITLB_LAST_VAR_UNRESTRICTED+TLB_STEP
-#define MMUIR_STEP TLB_STEP
-
-#define MMUDR_FIRST DTLB_FIXED
-#define MMUDR_END DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP
-#define MMUDR_STEP TLB_STEP
-
-/* Safety check : CONFIG_CACHED_MEMORY_OFFSET has to be a multiple of 512Mb */
-#if (CONFIG_CACHED_MEMORY_OFFSET & ((1UL<<29)-1))
-#error "CONFIG_CACHED_MEMORY_OFFSET must be a multiple of 512Mb"
-#endif
-
-/*
- * MMU defines: Fixed TLBs.
- */
-/* Deal safely with the case where the base of RAM is not 512Mb aligned */
-
-#define ALIGN_512M_MASK (0xffffffffe0000000)
-#define ALIGNED_EFFECTIVE ((CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START) & ALIGN_512M_MASK)
-#define ALIGNED_PHYSICAL (CONFIG_MEMORY_START & ALIGN_512M_MASK)
-
-#define MMUIR_TEXT_H (0x0000000000000003 | ALIGNED_EFFECTIVE)
- /* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-
-#define MMUIR_TEXT_L (0x000000000000009a | ALIGNED_PHYSICAL)
- /* 512 Mb, Cacheable, Write-back, execute, Not User, Ph. Add. */
-
-#define MMUDR_CACHED_H 0x0000000000000003 | ALIGNED_EFFECTIVE
- /* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-#define MMUDR_CACHED_L 0x000000000000015a | ALIGNED_PHYSICAL
- /* 512 Mb, Cacheable, Write-back, read/write, Not User, Ph. Add. */
-
-#ifdef CONFIG_ICACHE_DISABLED
-#define ICCR0_INIT_VAL ICCR0_OFF /* ICACHE off */
-#else
-#define ICCR0_INIT_VAL ICCR0_ON | ICCR0_ICI /* ICE + ICI */
-#endif
-#define ICCR1_INIT_VAL ICCR1_NOLOCK /* No locking */
-
-#if defined (CONFIG_DCACHE_DISABLED)
-#define OCCR0_INIT_VAL OCCR0_OFF /* D-cache: off */
-#elif defined (CONFIG_DCACHE_WRITE_THROUGH)
-#define OCCR0_INIT_VAL OCCR0_ON | OCCR0_OCI | OCCR0_WT /* D-cache: on, */
- /* WT, invalidate */
-#elif defined (CONFIG_DCACHE_WRITE_BACK)
-#define OCCR0_INIT_VAL OCCR0_ON | OCCR0_OCI | OCCR0_WB /* D-cache: on, */
- /* WB, invalidate */
-#else
-#error preprocessor flag CONFIG_DCACHE_... not recognized!
-#endif
-
-#define OCCR1_INIT_VAL OCCR1_NOLOCK /* No locking */
-
- .section .empty_zero_page, "aw"
- .global empty_zero_page
-
-empty_zero_page:
- .long 1 /* MOUNT_ROOT_RDONLY */
- .long 0 /* RAMDISK_FLAGS */
- .long 0x0200 /* ORIG_ROOT_DEV */
- .long 1 /* LOADER_TYPE */
- .long 0x00360000 /* INITRD_START */
- .long 0x000a0000 /* INITRD_SIZE */
- .long 0
-
- .text
- .balign 4096,0,4096
-
- .section .data, "aw"
- .balign PAGE_SIZE
-
- .section .data, "aw"
- .balign PAGE_SIZE
-
- .global swapper_pg_dir
-swapper_pg_dir:
- .space PAGE_SIZE, 0
-
- .global empty_bad_page
-empty_bad_page:
- .space PAGE_SIZE, 0
-
- .global empty_bad_pte_table
-empty_bad_pte_table:
- .space PAGE_SIZE, 0
-
- .global fpu_in_use
-fpu_in_use: .quad 0
-
-
- .section .text, "ax"
- .balign L1_CACHE_BYTES
-/*
- * Condition at the entry of __stext:
- * . Reset state:
- * . SR.FD = 1 (FPU disabled)
- * . SR.BL = 1 (Exceptions disabled)
- * . SR.MD = 1 (Privileged Mode)
- * . SR.MMU = 0 (MMU Disabled)
- * . SR.CD = 0 (CTC User Visible)
- * . SR.IMASK = Undefined (Interrupt Mask)
- *
- * Operations supposed to be performed by __stext:
- * . prevent speculative fetch onto device memory while MMU is off
- * . reflect as much as possible SH5 ABI (r15, r26, r27, r18)
- * . first, save CPU state and set it to something harmless
- * . any CPU detection and/or endianness settings (?)
- * . initialize EMI/LMI (but not TMU/RTC/INTC/SCIF): TBD
- * . set initial TLB entries for cached and uncached regions
- * (no fine granularity paging)
- * . set initial cache state
- * . enable MMU and caches
- * . set CPU to a consistent state
- * . registers (including stack pointer and current/KCR0)
- * . NOT expecting to set Exception handling nor VBR/RESVEC/DCR
- * at this stage. This is all to later Linux initialization steps.
- * . initialize FPU
- * . clear BSS
- * . jump into start_kernel()
- * . be prepared to hopeless start_kernel() returns.
- *
- */
- .global _stext
-_stext:
- /*
- * Prevent speculative fetch on device memory due to
- * uninitialized target registers.
- */
- ptabs/u ZERO, tr0
- ptabs/u ZERO, tr1
- ptabs/u ZERO, tr2
- ptabs/u ZERO, tr3
- ptabs/u ZERO, tr4
- ptabs/u ZERO, tr5
- ptabs/u ZERO, tr6
- ptabs/u ZERO, tr7
- synci
-
- /*
- * Read/Set CPU state. After this block:
- * r29 = Initial SR
- */
- getcon SR, r29
- movi SR_HARMLESS, r20
- putcon r20, SR
-
- /*
- * Initialize EMI/LMI. To Be Done.
- */
-
- /*
- * CPU detection and/or endianness settings (?). To Be Done.
- * Pure PIC code here, please ! Just save state into r30.
- * After this block:
- * r30 = CPU type/Platform Endianness
- */
-
- /*
- * Set initial TLB entries for cached and uncached regions.
- * Note: PTA/BLINK is PIC code, PTABS/BLINK isn't !
- */
- /* Clear ITLBs */
- pta clear_ITLB, tr1
- movi MMUIR_FIRST, r21
- movi MMUIR_END, r22
-clear_ITLB:
- putcfg r21, 0, ZERO /* Clear MMUIR[n].PTEH.V */
- addi r21, MMUIR_STEP, r21
- bne r21, r22, tr1
-
- /* Clear DTLBs */
- pta clear_DTLB, tr1
- movi MMUDR_FIRST, r21
- movi MMUDR_END, r22
-clear_DTLB:
- putcfg r21, 0, ZERO /* Clear MMUDR[n].PTEH.V */
- addi r21, MMUDR_STEP, r21
- bne r21, r22, tr1
-
- /* Map one big (512Mb) page for ITLB */
- movi MMUIR_FIRST, r21
- movi MMUIR_TEXT_L, r22 /* PTEL first */
- add.l r22, r63, r22 /* Sign extend */
- putcfg r21, 1, r22 /* Set MMUIR[0].PTEL */
- movi MMUIR_TEXT_H, r22 /* PTEH last */
- add.l r22, r63, r22 /* Sign extend */
- putcfg r21, 0, r22 /* Set MMUIR[0].PTEH */
-
- /* Map one big CACHED (512Mb) page for DTLB */
- movi MMUDR_FIRST, r21
- movi MMUDR_CACHED_L, r22 /* PTEL first */
- add.l r22, r63, r22 /* Sign extend */
- putcfg r21, 1, r22 /* Set MMUDR[0].PTEL */
- movi MMUDR_CACHED_H, r22 /* PTEH last */
- add.l r22, r63, r22 /* Sign extend */
- putcfg r21, 0, r22 /* Set MMUDR[0].PTEH */
-
-#ifdef CONFIG_EARLY_PRINTK
- /*
- * Setup a DTLB translation for SCIF phys.
- */
- addi r21, MMUDR_STEP, r21
- movi 0x0a03, r22 /* SCIF phys */
- shori 0x0148, r22
- putcfg r21, 1, r22 /* PTEL first */
- movi 0xfa03, r22 /* 0xfa030000, fixed SCIF virt */
- shori 0x0003, r22
- putcfg r21, 0, r22 /* PTEH last */
-#endif
-
- /*
- * Set cache behaviours.
- */
- /* ICache */
- movi ICCR_BASE, r21
- movi ICCR0_INIT_VAL, r22
- movi ICCR1_INIT_VAL, r23
- putcfg r21, ICCR_REG0, r22
- putcfg r21, ICCR_REG1, r23
-
- /* OCache */
- movi OCCR_BASE, r21
- movi OCCR0_INIT_VAL, r22
- movi OCCR1_INIT_VAL, r23
- putcfg r21, OCCR_REG0, r22
- putcfg r21, OCCR_REG1, r23
-
-
- /*
- * Enable Caches and MMU. Do the first non-PIC jump.
- * Now head.S global variables, constants and externs
- * can be used.
- */
- getcon SR, r21
- movi SR_ENABLE_MMU, r22
- or r21, r22, r21
- putcon r21, SSR
- movi hyperspace, r22
- ori r22, 1, r22 /* Make it SHmedia, not required but..*/
- putcon r22, SPC
- synco
- rte /* And now go into the hyperspace ... */
-hyperspace: /* ... that's the next instruction ! */
-
- /*
- * Set CPU to a consistent state.
- * r31 = FPU support flag
- * tr0/tr7 in use. Others give a chance to loop somewhere safe
- */
- movi start_kernel, r32
- ori r32, 1, r32
-
- ptabs r32, tr0 /* r32 = _start_kernel address */
- pta/u hopeless, tr1
- pta/u hopeless, tr2
- pta/u hopeless, tr3
- pta/u hopeless, tr4
- pta/u hopeless, tr5
- pta/u hopeless, tr6
- pta/u hopeless, tr7
- gettr tr1, r28 /* r28 = hopeless address */
-
- /* Set initial stack pointer */
- movi init_thread_union, SP
- putcon SP, KCR0 /* Set current to init_task */
- movi THREAD_SIZE, r22 /* Point to the end */
- add SP, r22, SP
-
- /*
- * Initialize FPU.
- * Keep FPU flag in r31. After this block:
- * r31 = FPU flag
- */
- movi fpu_in_use, r31 /* Temporary */
-
-#ifndef CONFIG_NOFPU_SUPPORT
- getcon SR, r21
- movi SR_ENABLE_FPU, r22
- and r21, r22, r22
- putcon r22, SR /* Try to enable */
- getcon SR, r22
- xor r21, r22, r21
- shlri r21, 15, r21 /* Supposedly 0/1 */
- st.q r31, 0 , r21 /* Set fpu_in_use */
-#else
- movi 0, r21
- st.q r31, 0 , r21 /* Set fpu_in_use */
-#endif
- or r21, ZERO, r31 /* Set FPU flag at last */
-
-#ifndef CONFIG_SH_NO_BSS_INIT
-/* Don't clear BSS if running on slow platforms such as an RTL simulation,
- remote memory via SHdebug link, etc. For these the memory can be guaranteed
- to be all zero on boot anyway. */
- /*
- * Clear bss
- */
- pta clear_quad, tr1
- movi __bss_start, r22
- movi _end, r23
-clear_quad:
- st.q r22, 0, ZERO
- addi r22, 8, r22
- bne r22, r23, tr1 /* Both quad aligned, see vmlinux.lds.S */
-#endif
- pta/u hopeless, tr1
-
- /* Say bye to head.S but be prepared to wrongly get back ... */
- blink tr0, LINK
-
- /* If we ever get back here through LINK/tr1-tr7 */
- pta/u hopeless, tr7
-
-hopeless:
- /*
- * Something's badly wrong here. Loop endlessly,
- * there's nothing more we can do about it.
- *
- * Note on hopeless: it can be jumped into invariably
- * before or after jumping into hyperspace. The only
- * requirement is to be PIC called (PTA) before and
- * any way (PTA/PTABS) after. According to Virtual
- * to Physical mapping a simulator/emulator can easily
- * tell where we came here from just looking at hopeless
- * (PC) address.
- *
- * For debugging purposes:
- * (r28) hopeless/loop address
- * (r29) Original SR
- * (r30) CPU type/Platform endianness
- * (r31) FPU Support
- * (r32) _start_kernel address
- */
- blink tr7, ZERO
-
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/init_task.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-#include <linux/rwsem.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-
-struct pt_regs fake_swapper_regs;
-
-/*
- * Initial thread structure.
- *
- * We need to make sure that this is THREAD_SIZE-byte aligned due
- * to the way process stacks are handled. This is done by having a
- * special "init_task" linker map entry..
- */
-union thread_union init_thread_union
- __attribute__((__section__(".data.init_task"))) =
- { INIT_THREAD_INFO(init_task) };
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK(init_task);
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-
-/*
- * IRQs are in fact implemented a bit like signal handlers for the kernel.
- * Naturally it's not a 1:1 relation, but there are similarities.
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/bitops.h>
-#include <asm/smp.h>
-#include <asm/pgalloc.h>
-#include <asm/delay.h>
-#include <asm/irq.h>
-#include <linux/irq.h>
-
-/*
- * Controller mappings for all interrupt sources:
- */
-irq_desc_t irq_desc[NR_IRQS] __cacheline_aligned = {
- [0 ... NR_IRQS-1] = {
- .handler = &no_irq_type,
- .lock = SPIN_LOCK_UNLOCKED
- }
-};
-
-
-/*
- * Special irq handlers.
- */
-
-irqreturn_t no_action(int cpl, void *dev_id, struct pt_regs *regs)
-{
- return IRQ_NONE;
-}
-
-/*
- * Generic no controller code
- */
-
-static void enable_none(unsigned int irq) { }
-static unsigned int startup_none(unsigned int irq) { return 0; }
-static void disable_none(unsigned int irq) { }
-static void ack_none(unsigned int irq)
-{
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves, it doesnt deserve
- * a generic callback i think.
- */
- printk("unexpected IRQ trap at irq %02x\n", irq);
-}
-
-/* startup is the same as "enable", shutdown is same as "disable" */
-#define shutdown_none disable_none
-#define end_none enable_none
-
-struct hw_interrupt_type no_irq_type = {
- "none",
- startup_none,
- shutdown_none,
- enable_none,
- disable_none,
- ack_none,
- end_none
-};
-
-#if defined(CONFIG_PROC_FS)
-int show_interrupts(struct seq_file *p, void *v)
-{
- int i = *(loff_t *) v, j;
- struct irqaction * action;
- unsigned long flags;
-
- if (i == 0) {
- seq_puts(p, " ");
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
- seq_putc(p, '\n');
- }
-
- if (i < NR_IRQS) {
- spin_lock_irqsave(&irq_desc[i].lock, flags);
- action = irq_desc[i].action;
- if (!action)
- goto unlock;
- seq_printf(p, "%3d: ",i);
- seq_printf(p, "%10u ", kstat_irqs(i));
- seq_printf(p, " %14s", irq_desc[i].handler->typename);
- seq_printf(p, " %s", action->name);
-
- for (action=action->next; action; action = action->next)
- seq_printf(p, ", %s", action->name);
- seq_putc(p, '\n');
-unlock:
- spin_unlock_irqrestore(&irq_desc[i].lock, flags);
- }
- return 0;
-}
-#endif
-
-/*
- * do_NMI handles all Non-Maskable Interrupts.
- */
-asmlinkage void do_NMI(unsigned long vector_num, struct pt_regs * regs)
-{
- if (regs->sr & 0x40000000)
- printk("unexpected NMI trap in system mode\n");
- else
- printk("unexpected NMI trap in user mode\n");
-
- /* No statistics */
-}
-
-/*
- * This should really return information about whether
- * we should do bottom half handling etc. Right now we
- * end up _always_ checking the bottom half, which is a
- * waste of time and is not what some drivers would
- * prefer.
- */
-int handle_IRQ_event(unsigned int irq, struct pt_regs * regs, struct irqaction * action)
-{
- int status;
-
- status = 1; /* Force the "do bottom halves" bit */
-
- if (!(action->flags & SA_INTERRUPT))
- local_irq_enable();
-
- do {
- status |= action->flags;
- action->handler(irq, action->dev_id, regs);
- action = action->next;
- } while (action);
- if (status & SA_SAMPLE_RANDOM)
- add_interrupt_randomness(irq);
-
- local_irq_disable();
-
- return status;
-}
-
-/*
- * Generic enable/disable code: this just calls
- * down into the PIC-specific version for the actual
- * hardware disable after having gotten the irq
- * controller lock.
- */
-
-/**
- * disable_irq_nosync - disable an irq without waiting
- * @irq: Interrupt to disable
- *
- * Disable the selected interrupt line. Disables of an interrupt
- * stack. Unlike disable_irq(), this function does not ensure existing
- * instances of the IRQ handler have completed before returning.
- *
- * This function may be called from IRQ context.
- */
-void disable_irq_nosync(unsigned int irq)
-{
- irq_desc_t *desc = irq_desc + irq;
- unsigned long flags;
-
- spin_lock_irqsave(&desc->lock, flags);
- if (!desc->depth++) {
- desc->status |= IRQ_DISABLED;
- desc->handler->disable(irq);
- }
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-/**
- * disable_irq - disable an irq and wait for completion
- * @irq: Interrupt to disable
- *
- * Disable the selected interrupt line. Disables of an interrupt
- * stack. That is for two disables you need two enables. This
- * function waits for any pending IRQ handlers for this interrupt
- * to complete before returning. If you use this function while
- * holding a resource the IRQ handler may need you will deadlock.
- *
- * This function may be called - with care - from IRQ context.
- */
-void disable_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- synchronize_irq(irq);
-}
-
-/**
- * enable_irq - enable interrupt handling on an irq
- * @irq: Interrupt to enable
- *
- * Re-enables the processing of interrupts on this IRQ line
- * providing no disable_irq calls are now in effect.
- *
- * This function may be called from IRQ context.
- */
-void enable_irq(unsigned int irq)
-{
- irq_desc_t *desc = irq_desc + irq;
- unsigned long flags;
-
- spin_lock_irqsave(&desc->lock, flags);
- switch (desc->depth) {
- case 1: {
- unsigned int status = desc->status & ~IRQ_DISABLED;
- desc->status = status;
- if ((status & (IRQ_PENDING | IRQ_REPLAY)) == IRQ_PENDING) {
- desc->status = status | IRQ_REPLAY;
- hw_resend_irq(desc->handler,irq);
- }
- desc->handler->enable(irq);
- /* fall-through */
- }
- default:
- desc->depth--;
- break;
- case 0:
- printk("enable_irq() unbalanced from %p\n",
- __builtin_return_address(0));
- }
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-/*
- * do_IRQ handles all normal device IRQ's.
- */
-asmlinkage int do_IRQ(unsigned long vector_num, struct pt_regs * regs)
-{
- /*
- * We ack quickly, we don't want the irq controller
- * thinking we're snobs just because some other CPU has
- * disabled global interrupts (we have already done the
- * INT_ACK cycles, it's too late to try to pretend to the
- * controller that we aren't taking the interrupt).
- *
- * 0 return value means that this irq is already being
- * handled by some other CPU. (or is disabled)
- */
- int irq;
- int cpu = smp_processor_id();
- irq_desc_t *desc = NULL;
- struct irqaction * action;
- unsigned int status;
-
- irq_enter();
-
-#ifdef CONFIG_PREEMPT
- /*
- * At this point we're now about to actually call handlers,
- * and interrupts might get reenabled during them... bump
- * preempt_count to prevent any preemption while the handler
- * called here is pending...
- */
- preempt_disable();
-#endif
-
- irq = irq_demux(vector_num);
-
- /*
- * Should never happen, if it does check
- * vectorN_to_IRQ[] against trap_jtable[].
- */
- if (irq == -1) {
- printk("unexpected IRQ trap at vector %03lx\n", vector_num);
- goto out;
- }
-
- desc = irq_desc + irq;
-
- kstat_cpu(cpu).irqs[irq]++;
- spin_lock(&desc->lock);
- desc->handler->ack(irq);
- /*
- REPLAY is when Linux resends an IRQ that was dropped earlier
- WAITING is used by probe to mark irqs that are being tested
- */
- status = desc->status & ~(IRQ_REPLAY | IRQ_WAITING | IRQ_INPROGRESS);
- status |= IRQ_PENDING; /* we _want_ to handle it */
-
- /*
- * If the IRQ is disabled for whatever reason, we cannot
- * use the action we have.
- */
- action = NULL;
- if (!(status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
- action = desc->action;
- status &= ~IRQ_PENDING; /* we commit to handling */
- status |= IRQ_INPROGRESS; /* we are handling it */
- }
- desc->status = status;
-
- /*
- * If there is no IRQ handler or it was disabled, exit early.
- Since we set PENDING, if another processor is handling
- a different instance of this same irq, the other processor
- will take care of it.
- */
- if (!action)
- goto out;
-
- /*
- * Edge triggered interrupts need to remember
- * pending events.
- * This applies to any hw interrupts that allow a second
- * instance of the same irq to arrive while we are in do_IRQ
- * or in the handler. But the code here only handles the _second_
- * instance of the irq, not the third or fourth. So it is mostly
- * useful for irq hardware that does not mask cleanly in an
- * SMP environment.
- */
- for (;;) {
- spin_unlock(&desc->lock);
- handle_IRQ_event(irq, regs, action);
- spin_lock(&desc->lock);
-
- if (!(desc->status & IRQ_PENDING))
- break;
- desc->status &= ~IRQ_PENDING;
- }
- desc->status &= ~IRQ_INPROGRESS;
-out:
- /*
- * The ->end() handler has to deal with interrupts which got
- * disabled while the handler was running.
- */
- if (desc) {
- desc->handler->end(irq);
- spin_unlock(&desc->lock);
- }
-
- irq_exit();
-
-#ifdef CONFIG_PREEMPT
- /*
- * We're done with the handlers, interrupts should be
- * currently disabled; decrement preempt_count now so
- * as we return preemption may be allowed...
- */
- preempt_enable_no_resched();
-#endif
-
- return 1;
-}
-
-/**
- * request_irq - allocate an interrupt line
- * @irq: Interrupt line to allocate
- * @handler: Function to be called when the IRQ occurs
- * @irqflags: Interrupt type flags
- * @devname: An ascii name for the claiming device
- * @dev_id: A cookie passed back to the handler function
- *
- * This call allocates interrupt resources and enables the
- * interrupt line and IRQ handling. From the point this
- * call is made your handler function may be invoked. Since
- * your handler function must clear any interrupt the board
- * raises, you must take care both to initialise your hardware
- * and to set up the interrupt handler in the right order.
- *
- * Dev_id must be globally unique. Normally the address of the
- * device data structure is used as the cookie. Since the handler
- * receives this value it makes sense to use it.
- *
- * If your interrupt is shared you must pass a non NULL dev_id
- * as this is required when freeing the interrupt.
- *
- * Flags:
- *
- * SA_SHIRQ Interrupt is shared
- *
- * SA_INTERRUPT Disable local interrupts while processing
- *
- * SA_SAMPLE_RANDOM The interrupt can be used for entropy
- *
- */
-int request_irq(unsigned int irq,
- irqreturn_t (*handler)(int, void *, struct pt_regs *),
- unsigned long irqflags,
- const char * devname,
- void *dev_id)
-{
- int retval;
- struct irqaction * action;
-
-#if 1
- /*
- * Sanity-check: shared interrupts should REALLY pass in
- * a real dev-ID, otherwise we'll have trouble later trying
- * to figure out which interrupt is which (messes up the
- * interrupt freeing logic etc).
- */
- if (irqflags & SA_SHIRQ) {
- if (!dev_id)
- printk("Bad boy: %s (at 0x%x) called us without a dev_id!\n", devname, (&irq)[-1]);
- }
-#endif
-
- if (irq >= NR_IRQS)
- return -EINVAL;
- if (!handler)
- return -EINVAL;
-
- action = (struct irqaction *)
- kmalloc(sizeof(struct irqaction), GFP_KERNEL);
- if (!action)
- return -ENOMEM;
-
- action->handler = handler;
- action->flags = irqflags;
- cpus_clear(action->mask);
- action->name = devname;
- action->next = NULL;
- action->dev_id = dev_id;
-
- retval = setup_irq(irq, action);
- if (retval)
- kfree(action);
- return retval;
-}
-
-/**
- * free_irq - free an interrupt
- * @irq: Interrupt line to free
- * @dev_id: Device identity to free
- *
- * Remove an interrupt handler. The handler is removed and if the
- * interrupt line is no longer in use by any driver it is disabled.
- * On a shared IRQ the caller must ensure the interrupt is disabled
- * on the card it drives before calling this function. The function
- * does not return until any executing interrupts for this IRQ
- * have completed.
- *
- * This function may be called from interrupt context.
- *
- * Bugs: Attempting to free an irq in a handler for the same irq hangs
- * the machine.
- */
-void free_irq(unsigned int irq, void *dev_id)
-{
- irq_desc_t *desc;
- struct irqaction **p;
- unsigned long flags;
-
- if (irq >= NR_IRQS)
- return;
-
- desc = irq_desc + irq;
- spin_lock_irqsave(&desc->lock,flags);
- p = &desc->action;
- for (;;) {
- struct irqaction * action = *p;
- if (action) {
- struct irqaction **pp = p;
- p = &action->next;
- if (action->dev_id != dev_id)
- continue;
-
- /* Found it - now remove it from the list of entries */
- *pp = action->next;
- if (!desc->action) {
- desc->status |= IRQ_DISABLED;
- desc->handler->shutdown(irq);
- }
- spin_unlock_irqrestore(&desc->lock,flags);
- kfree(action);
- return;
- }
- printk("Trying to free free IRQ%d\n",irq);
- spin_unlock_irqrestore(&desc->lock,flags);
- return;
- }
-}
-
-/*
- * IRQ autodetection code..
- *
- * This depends on the fact that any interrupt that
- * comes in on to an unassigned handler will get stuck
- * with "IRQ_WAITING" cleared and the interrupt
- * disabled.
- */
-
-/**
- * probe_irq_on - begin an interrupt autodetect
- *
- * Commence probing for an interrupt. The interrupts are scanned
- * and a mask of potential interrupt lines is returned.
- *
- */
-unsigned long probe_irq_on(void)
-{
- unsigned int i;
- irq_desc_t *desc;
- unsigned long val;
- unsigned long delay;
-
- /*
- * something may have generated an irq long ago and we want to
- * flush such a longstanding irq before considering it as spurious.
- */
- for (i = NR_IRQS-1; i >= 0; i--) {
- desc = irq_desc + i;
-
- spin_lock_irq(&desc->lock);
- if (!irq_desc[i].action) {
- irq_desc[i].handler->startup(i);
- }
- spin_unlock_irq(&desc->lock);
- }
-
- /* Wait for longstanding interrupts to trigger. */
- for (delay = jiffies + HZ/50; time_after(delay, jiffies); )
- /* about 20ms delay */ synchronize_irq();
-
- /*
- * enable any unassigned irqs
- * (we must startup again here because if a longstanding irq
- * happened in the previous stage, it may have masked itself)
- */
- for (i = NR_IRQS-1; i >= 0; i--) {
- desc = irq_desc + 1;
-
- spin_lock_irq(&desc->lock);
- if (!desc->action) {
- desc->status |= IRQ_AUTODETECT | IRQ_WAITING;
- if (desc->handler->startup(i))
- desc->status |= IRQ_PENDING;
- }
- spin_unlock_irq(&desc->lock);
- }
-
- /*
- * Wait for spurious interrupts to trigger
- */
- for (delay = jiffies + HZ/10; time_after(delay, jiffies); )
- /* about 100ms delay */ synchronize_irq();
-
- /*
- * Now filter out any obviously spurious interrupts
- */
- val = 0;
- for (i = 0; i < NR_IRQS; i++) {
- irq_desc_t *desc = irq_desc + i;
- unsigned int status;
-
- spin_lock_irq(&desc->lock);
- status = desc->status;
-
- if (status & IRQ_AUTODETECT) {
- /* It triggered already - consider it spurious. */
- if (!(status & IRQ_WAITING)) {
- desc->status = status & ~IRQ_AUTODETECT;
- desc->handler->shutdown(i);
- } else
- if (i < 32)
- val |= 1 << i;
- }
- spin_unlock_irq(&desc->lock);
- }
-
- return val;
-}
-
-/*
- * Return the one interrupt that triggered (this can
- * handle any interrupt source).
- */
-
-/**
- * probe_irq_off - end an interrupt autodetect
- * @val: mask of potential interrupts (unused)
- *
- * Scans the unused interrupt lines and returns the line which
- * appears to have triggered the interrupt. If no interrupt was
- * found then zero is returned. If more than one interrupt is
- * found then minus the first candidate is returned to indicate
- * their is doubt.
- *
- * The interrupt probe logic state is returned to its previous
- * value.
- *
- * BUGS: When used in a module (which arguably shouldnt happen)
- * nothing prevents two IRQ probe callers from overlapping. The
- * results of this are non-optimal.
- */
-int probe_irq_off(unsigned long val)
-{
- int i, irq_found, nr_irqs;
-
- nr_irqs = 0;
- irq_found = 0;
- for (i=0; i<NR_IRQS; i++) {
- irq_desc_t *desc = irq_desc + i;
- unsigned int status;
-
- spin_lock_irq(&desc->lock);
- status = desc->status;
- if (!(status & IRQ_AUTODETECT))
- continue;
-
- if (status & IRQ_AUTODETECT) {
- if (!(status & IRQ_WAITING)) {
- if (!nr_irqs)
- irq_found = i;
- nr_irqs++;
- }
-
- desc->status = status & ~IRQ_AUTODETECT;
- desc->handler->shutdown(i);
- }
- spin_unlock_irq(&desc->lock);
- }
-
- if (nr_irqs > 1)
- irq_found = -irq_found;
- return irq_found;
-}
-
-int setup_irq(unsigned int irq, struct irqaction * new)
-{
- int shared = 0;
- unsigned long flags;
- struct irqaction *old, **p;
- irq_desc_t *desc = irq_desc + irq;
-
- /*
- * Some drivers like serial.c use request_irq() heavily,
- * so we have to be careful not to interfere with a
- * running system.
- */
- if (new->flags & SA_SAMPLE_RANDOM) {
- /*
- * This function might sleep, we want to call it first,
- * outside of the atomic block.
- * Yes, this might clear the entropy pool if the wrong
- * driver is attempted to be loaded, without actually
- * installing a new handler, but is this really a problem,
- * only the sysadmin is able to do this.
- */
- rand_initialize_irq(irq);
- }
-
- /*
- * The following block of code has to be executed atomically
- */
- spin_lock_irqsave(&desc->lock,flags);
- p = &desc->action;
- if ((old = *p) != NULL) {
- /* Can't share interrupts unless both agree to */
- if (!(old->flags & new->flags & SA_SHIRQ)) {
- spin_unlock_irqrestore(&desc->lock,flags);
- return -EBUSY;
- }
-
- /* add new interrupt at end of irq queue */
- do {
- p = &old->next;
- old = *p;
- } while (old);
- shared = 1;
- }
-
- *p = new;
-
- if (!shared) {
- desc->depth = 0;
- desc->status &= ~IRQ_DISABLED;
- desc->handler->startup(irq);
- }
- spin_unlock_irqrestore(&desc->lock,flags);
-
- /*
- * No PROC FS support for interrupts.
- * For improvements in this area please check
- * the i386 branch.
- */
- return 0;
-}
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
-
-void init_irq_proc(void)
-{
- /*
- * No PROC FS support for interrupts.
- * For improvements in this area please check
- * the i386 branch.
- */
-}
-#endif
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq_intc.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- * Interrupt Controller support for SH5 INTC.
- * Per-interrupt selective. IRLM=0 (Fixed priority) is not
- * supported being useless without a cascaded interrupt
- * controller.
- *
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-
-#include <asm/hardware.h>
-#include <asm/platform.h>
-#include <asm/bitops.h> /* this includes also <asm/registers.h */
- /* which is required to remap register */
- /* names used into __asm__ blocks... */
-#include <asm/page.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-/*
- * Maybe the generic Peripheral block could move to a more
- * generic include file. INTC Block will be defined here
- * and only here to make INTC self-contained in a single
- * file.
- */
-#define INTC_BLOCK_OFFSET 0x01000000
-
-/* Base */
-#define INTC_BASE PHYS_PERIPHERAL_BLOCK + \
- INTC_BLOCK_OFFSET
-
-/* Address */
-#define INTC_ICR_SET (intc_virt + 0x0)
-#define INTC_ICR_CLEAR (intc_virt + 0x8)
-#define INTC_INTPRI_0 (intc_virt + 0x10)
-#define INTC_INTSRC_0 (intc_virt + 0x50)
-#define INTC_INTSRC_1 (intc_virt + 0x58)
-#define INTC_INTREQ_0 (intc_virt + 0x60)
-#define INTC_INTREQ_1 (intc_virt + 0x68)
-#define INTC_INTENB_0 (intc_virt + 0x70)
-#define INTC_INTENB_1 (intc_virt + 0x78)
-#define INTC_INTDSB_0 (intc_virt + 0x80)
-#define INTC_INTDSB_1 (intc_virt + 0x88)
-
-#define INTC_ICR_IRLM 0x1
-#define INTC_INTPRI_PREGS 8 /* 8 Priority Registers */
-#define INTC_INTPRI_PPREG 8 /* 8 Priorities per Register */
-
-
-/*
- * Mapper between the vector ordinal and the IRQ number
- * passed to kernel/device drivers.
- */
-int intc_evt_to_irq[(0xE20/0x20)+1] = {
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0x000 - 0x0E0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0x100 - 0x1E0 */
- 0, 0, 0, 0, 0, 1, 0, 0, /* 0x200 - 0x2E0 */
- 2, 0, 0, 3, 0, 0, 0, -1, /* 0x300 - 0x3E0 */
- 32, 33, 34, 35, 36, 37, 38, -1, /* 0x400 - 0x4E0 */
- -1, -1, -1, 63, -1, -1, -1, -1, /* 0x500 - 0x5E0 */
- -1, -1, 18, 19, 20, 21, 22, -1, /* 0x600 - 0x6E0 */
- 39, 40, 41, 42, -1, -1, -1, -1, /* 0x700 - 0x7E0 */
- 4, 5, 6, 7, -1, -1, -1, -1, /* 0x800 - 0x8E0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0x900 - 0x9E0 */
- 12, 13, 14, 15, 16, 17, -1, -1, /* 0xA00 - 0xAE0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0xB00 - 0xBE0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0xC00 - 0xCE0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0xD00 - 0xDE0 */
- -1, -1 /* 0xE00 - 0xE20 */
-};
-
-/*
- * Opposite mapper.
- */
-static int IRQ_to_vectorN[NR_INTC_IRQS] = {
- 0x12, 0x15, 0x18, 0x1B, 0x40, 0x41, 0x42, 0x43, /* 0- 7 */
- -1, -1, -1, -1, 0x50, 0x51, 0x52, 0x53, /* 8-15 */
- 0x54, 0x55, 0x32, 0x33, 0x34, 0x35, 0x36, -1, /* 16-23 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 24-31 */
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x38, /* 32-39 */
- 0x39, 0x3A, 0x3B, -1, -1, -1, -1, -1, /* 40-47 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 48-55 */
- -1, -1, -1, -1, -1, -1, -1, 0x2B, /* 56-63 */
-
-};
-
-static unsigned long intc_virt;
-
-static unsigned int startup_intc_irq(unsigned int irq);
-static void shutdown_intc_irq(unsigned int irq);
-static void enable_intc_irq(unsigned int irq);
-static void disable_intc_irq(unsigned int irq);
-static void mask_and_ack_intc(unsigned int);
-static void end_intc_irq(unsigned int irq);
-
-static struct hw_interrupt_type intc_irq_type = {
- "INTC",
- startup_intc_irq,
- shutdown_intc_irq,
- enable_intc_irq,
- disable_intc_irq,
- mask_and_ack_intc,
- end_intc_irq
-};
-
-static int irlm; /* IRL mode */
-
-static unsigned int startup_intc_irq(unsigned int irq)
-{
- enable_intc_irq(irq);
- return 0; /* never anything pending */
-}
-
-static void shutdown_intc_irq(unsigned int irq)
-{
- disable_intc_irq(irq);
-}
-
-static void enable_intc_irq(unsigned int irq)
-{
- unsigned long reg;
- unsigned long bitmask;
-
- if ((irq <= IRQ_IRL3) && (irlm == NO_PRIORITY))
- printk("Trying to use straight IRL0-3 with an encoding platform.\n");
-
- if (irq < 32) {
- reg = INTC_INTENB_0;
- bitmask = 1 << irq;
- } else {
- reg = INTC_INTENB_1;
- bitmask = 1 << (irq - 32);
- }
-
- ctrl_outl(bitmask, reg);
-}
-
-static void disable_intc_irq(unsigned int irq)
-{
- unsigned long reg;
- unsigned long bitmask;
-
- if (irq < 32) {
- reg = INTC_INTDSB_0;
- bitmask = 1 << irq;
- } else {
- reg = INTC_INTDSB_1;
- bitmask = 1 << (irq - 32);
- }
-
- ctrl_outl(bitmask, reg);
-}
-
-static void mask_and_ack_intc(unsigned int irq)
-{
- disable_intc_irq(irq);
-}
-
-static void end_intc_irq(unsigned int irq)
-{
- enable_intc_irq(irq);
-}
-
-/* For future use, if we ever support IRLM=0) */
-void make_intc_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_desc[irq].handler = &intc_irq_type;
- disable_intc_irq(irq);
-}
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
-int intc_irq_describe(char* p, int irq)
-{
- if (irq < NR_INTC_IRQS)
- return sprintf(p, "(0x%3x)", IRQ_to_vectorN[irq]*0x20);
- else
- return 0;
-}
-#endif
-
-void __init init_IRQ(void)
-{
- unsigned long long __dummy0, __dummy1=~0x00000000100000f0;
- unsigned long reg;
- unsigned long data;
- int i;
-
- intc_virt = onchip_remap(INTC_BASE, 1024, "INTC");
- if (!intc_virt) {
- panic("Unable to remap INTC\n");
- }
-
-
- /* Set default: per-line enable/disable, priority driven ack/eoi */
- for (i = 0; i < NR_INTC_IRQS; i++) {
- if (platform_int_priority[i] != NO_PRIORITY) {
- irq_desc[i].handler = &intc_irq_type;
- }
- }
-
-
- /* Disable all interrupts and set all priorities to 0 to avoid trouble */
- ctrl_outl(-1, INTC_INTDSB_0);
- ctrl_outl(-1, INTC_INTDSB_1);
-
- for (reg = INTC_INTPRI_0, i = 0; i < INTC_INTPRI_PREGS; i++, reg += 8)
- ctrl_outl( NO_PRIORITY, reg);
-
-
- /* Set IRLM */
- /* If all the priorities are set to 'no priority', then
- * assume we are using encoded mode.
- */
- irlm = platform_int_priority[IRQ_IRL0] + platform_int_priority[IRQ_IRL1] + \
- platform_int_priority[IRQ_IRL2] + platform_int_priority[IRQ_IRL3];
-
- if (irlm == NO_PRIORITY) {
- /* IRLM = 0 */
- reg = INTC_ICR_CLEAR;
- i = IRQ_INTA;
- printk("Trying to use encoded IRL0-3. IRLs unsupported.\n");
- } else {
- /* IRLM = 1 */
- reg = INTC_ICR_SET;
- i = IRQ_IRL0;
- }
- ctrl_outl(INTC_ICR_IRLM, reg);
-
- /* Set interrupt priorities according to platform description */
- for (data = 0, reg = INTC_INTPRI_0; i < NR_INTC_IRQS; i++) {
- data |= platform_int_priority[i] << ((i % INTC_INTPRI_PPREG) * 4);
- if ((i % INTC_INTPRI_PPREG) == (INTC_INTPRI_PPREG - 1)) {
- /* Upon the 7th, set Priority Register */
- ctrl_outl(data, reg);
- data = 0;
- reg += 8;
- }
- }
-
-#ifdef CONFIG_SH_CAYMAN
- {
- extern void init_cayman_irq(void);
-
- init_cayman_irq();
- }
-#endif
-
- /*
- * And now let interrupts come in.
- * sti() is not enough, we need to
- * lower priority, too.
- */
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "and %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy0)
- : "r" (__dummy1));
-}
+++ /dev/null
-/*
- * arch/sh64/kernel/led.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Flash the LEDs
- */
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/sched.h>
-
-void mach_led(int pos, int val);
-
-/* acts like an actual heart beat -- ie thump-thump-pause... */
-void heartbeat(void)
-{
- static unsigned int cnt = 0, period = 0, dist = 0;
-
- if (cnt == 0 || cnt == dist) {
- mach_led(-1, 1);
- } else if (cnt == 7 || cnt == dist + 7) {
- mach_led(-1, 0);
- }
-
- if (++cnt > period) {
- cnt = 0;
-
- /*
- * The hyperbolic function below modifies the heartbeat period
- * length in dependency of the current (5min) load. It goes
- * through the points f(0)=126, f(1)=86, f(5)=51, f(inf)->30.
- */
- period = ((672 << FSHIFT) / (5 * avenrun[0] +
- (7 << FSHIFT))) + 30;
- dist = period / 4;
- }
-}
-
+++ /dev/null
-/*
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- * Copyright (C) 2003 Paul Mundt (lethal@linux-sh.org)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Dynamic DMA mapping support.
- */
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-
-void *consistent_alloc(struct pci_dev *hwdev, size_t size,
- dma_addr_t *dma_handle)
-{
- void *ret;
- int gfp = GFP_ATOMIC;
- void *vp;
-
- if (hwdev == NULL || hwdev->dma_mask != 0xffffffff)
- gfp |= GFP_DMA;
-
- ret = (void *)__get_free_pages(gfp, get_order(size));
-
- /* now call our friend ioremap_nocache to give us an uncached area */
- vp = ioremap_nocache(virt_to_phys(ret), size);
-
- if (vp != NULL) {
- memset(vp, 0, size);
- *dma_handle = virt_to_bus(ret);
- dma_cache_wback_inv((unsigned long)ret, size);
- }
-
- return vp;
-}
-
-void consistent_free(struct pci_dev *hwdev, size_t size,
- void *vaddr, dma_addr_t dma_handle)
-{
- void *alloc;
-
- alloc = bus_to_virt((unsigned long)dma_handle);
- free_pages((unsigned long)alloc, get_order(size));
-
- iounmap(vaddr);
-}
-
+++ /dev/null
-/*
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Support functions for the SH5 PCI hardware.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/rwsem.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/types.h>
-#include <asm/pci.h>
-#include <linux/irq.h>
-
-#include <asm/io.h>
-#include <asm/hardware.h>
-#include "pci_sh5.h"
-
-static unsigned long pcicr_virt;
-unsigned long pciio_virt;
-
-static void __init pci_fixup_ide_bases(struct pci_dev *d)
-{
- int i;
-
- /*
- * PCI IDE controllers use non-standard I/O port decoding, respect it.
- */
- if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
- return;
- printk("PCI: IDE base address fixup for %s\n", d->slot_name);
- for(i=0; i<4; i++) {
- struct resource *r = &d->resource[i];
- if ((r->start & ~0x80) == 0x374) {
- r->start |= 2;
- r->end = r->start;
- }
- }
-}
-
-/* Add future fixups here... */
-struct pci_fixup pcibios_fixups[] = {
- { PCI_FIXUP_HEADER, PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases },
- { 0 }
-};
-
-char * __init pcibios_setup(char *str)
-{
- return str;
-}
-
-/* Rounds a number UP to the nearest power of two. Used for
- * sizing the PCI window.
- */
-static u32 __init r2p2(u32 num)
-{
- int i = 31;
- u32 tmp = num;
-
- if (num == 0)
- return 0;
-
- do {
- if (tmp & (1 << 31))
- break;
- i--;
- tmp <<= 1;
- } while (i >= 0);
-
- tmp = 1 << i;
- /* If the original number isn't a power of 2, round it up */
- if (tmp != num)
- tmp <<= 1;
-
- return tmp;
-}
-
-extern unsigned long long memory_start, memory_end;
-
-int __init sh5pci_init(unsigned memStart, unsigned memSize)
-{
- u32 lsr0;
- u32 uval;
-
- pcicr_virt = onchip_remap(SH5PCI_ICR_BASE, 1024, "PCICR");
- if (!pcicr_virt) {
- panic("Unable to remap PCICR\n");
- }
-
- pciio_virt = onchip_remap(SH5PCI_IO_BASE, 0x10000, "PCIIO");
- if (!pciio_virt) {
- panic("Unable to remap PCIIO\n");
- }
-
- pr_debug("Register base addres is 0x%08lx\n", pcicr_virt);
-
- /* Clear snoop registers */
- SH5PCI_WRITE(CSCR0, 0);
- SH5PCI_WRITE(CSCR1, 0);
-
- pr_debug("Wrote to reg\n");
-
- /* Switch off interrupts */
- SH5PCI_WRITE(INTM, 0);
- SH5PCI_WRITE(AINTM, 0);
- SH5PCI_WRITE(PINTM, 0);
-
- /* Set bus active, take it out of reset */
- uval = SH5PCI_READ(CR);
-
- /* Set command Register */
- SH5PCI_WRITE(CR, uval | CR_LOCK_MASK | CR_CFINT| CR_FTO | CR_PFE | CR_PFCS | CR_BMAM);
-
- uval=SH5PCI_READ(CR);
- pr_debug("CR is actually 0x%08x\n",uval);
-
- /* Allow it to be a master */
- /* NB - WE DISABLE I/O ACCESS to stop overlap */
- /* set WAIT bit to enable stepping, an attempt to improve stability */
- SH5PCI_WRITE_SHORT(CSR_CMD,
- PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_WAIT);
-
- /*
- ** Set translation mapping memory in order to convert the address
- ** used for the main bus, to the PCI internal address.
- */
- SH5PCI_WRITE(MBR,0x40000000);
-
- /* Always set the max size 512M */
- SH5PCI_WRITE(MBMR, PCISH5_MEM_SIZCONV(512*1024*1024));
-
- /*
- ** I/O addresses are mapped at internal PCI specific address
- ** as is described into the configuration bridge table.
- ** These are changed to 0, to allow cards that have legacy
- ** io such as vga to function correctly. We set the SH5 IOBAR to
- ** 256K, which is a bit big as we can only have 64K of address space
- */
-
- SH5PCI_WRITE(IOBR,0x0);
-
- pr_debug("PCI:Writing 0x%08x to IOBR\n",0);
-
- /* Set up a 256K window. Totally pointless waste of address space */
- SH5PCI_WRITE(IOBMR,0);
- pr_debug("PCI:Writing 0x%08x to IOBMR\n",0);
-
- /* The SH5 has a HUGE 256K I/O region, which breaks the PCI spec. Ideally,
- * we would want to map the I/O region somewhere, but it is so big this is not
- * that easy!
- */
- SH5PCI_WRITE(CSR_IBAR0,~0);
- /* Set memory size value */
- memSize = memory_end - memory_start;
-
- /* Now we set up the mbars so the PCI bus can see the memory of the machine */
- if (memSize < (1024 * 1024)) {
- printk(KERN_ERR "PCISH5: Ridiculous memory size of 0x%x?\n", memSize);
- return -EINVAL;
- }
-
- /* Set LSR 0 */
- lsr0 = (memSize > (512 * 1024 * 1024)) ? 0x1ff00001 : ((r2p2(memSize) - 0x100000) | 0x1);
- SH5PCI_WRITE(LSR0, lsr0);
-
- pr_debug("PCI:Writing 0x%08x to LSR0\n",lsr0);
-
- /* Set MBAR 0 */
- SH5PCI_WRITE(CSR_MBAR0, memory_start);
- SH5PCI_WRITE(LAR0, memory_start);
-
- SH5PCI_WRITE(CSR_MBAR1,0);
- SH5PCI_WRITE(LAR1,0);
- SH5PCI_WRITE(LSR1,0);
-
- pr_debug("PCI:Writing 0x%08llx to CSR_MBAR0\n",memory_start);
- pr_debug("PCI:Writing 0x%08llx to LAR0\n",memory_start);
-
- /* Enable the PCI interrupts on the device */
- SH5PCI_WRITE(INTM, ~0);
- SH5PCI_WRITE(AINTM, ~0);
- SH5PCI_WRITE(PINTM, ~0);
-
- pr_debug("Switching on all error interrupts\n");
-
- return(0);
-}
-
-static int sh5pci_read(struct pci_bus *bus, unsigned int devfn, int where,
- int size, u32 *val)
-{
- SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
- switch (size) {
- case 1:
- *val = (u8)SH5PCI_READ_BYTE(PDR + (where & 3));
- break;
- case 2:
- *val = (u16)SH5PCI_READ_SHORT(PDR + (where & 2));
- break;
- case 4:
- *val = SH5PCI_READ(PDR);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int sh5pci_write(struct pci_bus *bus, unsigned int devfn, int where,
- int size, u32 val)
-{
- SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
- switch (size) {
- case 1:
- SH5PCI_WRITE_BYTE(PDR + (where & 3), (u8)val);
- break;
- case 2:
- SH5PCI_WRITE_SHORT(PDR + (where & 2), (u16)val);
- break;
- case 4:
- SH5PCI_WRITE(PDR, val);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_config_ops = {
- .read = sh5pci_read,
- .write = sh5pci_write,
-};
-
-/* Everything hangs off this */
-static struct pci_bus *pci_root_bus;
-
-
-static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin)
-{
- pr_debug("swizzle for dev %d on bus %d slot %d pin is %d\n",
- dev->devfn,dev->bus->number, PCI_SLOT(dev->devfn),*pin);
- return PCI_SLOT(dev->devfn);
-}
-
-static inline u8 bridge_swizzle(u8 pin, u8 slot)
-{
- return (((pin-1) + slot) % 4) + 1;
-}
-
-u8 __init common_swizzle(struct pci_dev *dev, u8 *pinp)
-{
- if (dev->bus->number != 0) {
- u8 pin = *pinp;
- do {
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
- /* Move up the chain of bridges. */
- dev = dev->bus->self;
- } while (dev->bus->self);
- *pinp = pin;
-
- /* The slot is the slot of the last bridge. */
- }
-
- return PCI_SLOT(dev->devfn);
-}
-
-/* This needs to be shunted out of here into the board specific bit */
-
-static int __init map_cayman_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- int result = -1;
-
- /* The complication here is that the PCI IRQ lines from the Cayman's 2
- 5V slots get into the CPU via a different path from the IRQ lines
- from the 3 3.3V slots. Thus, we have to detect whether the card's
- interrupts go via the 5V or 3.3V path, i.e. the 'bridge swizzling'
- at the point where we cross from 5V to 3.3V is not the normal case.
-
- The added complication is that we don't know that the 5V slots are
- always bus 2, because a card containing a PCI-PCI bridge may be
- plugged into a 3.3V slot, and this changes the bus numbering.
-
- Also, the Cayman has an intermediate PCI bus that goes a custom
- expansion board header (and to the secondary bridge). This bus has
- never been used in practice.
-
- The 1ary onboard PCI-PCI bridge is device 3 on bus 0
- The 2ary onboard PCI-PCI bridge is device 0 on the 2ary bus of the 1ary bridge.
- */
-
- struct slot_pin {
- int slot;
- int pin;
- } path[4];
- int i=0;
-
- while (dev->bus->number > 0) {
-
- slot = path[i].slot = PCI_SLOT(dev->devfn);
- pin = path[i].pin = bridge_swizzle(pin, slot);
- dev = dev->bus->self;
- i++;
- if (i > 3) panic("PCI path to root bus too long!\n");
- }
-
- slot = PCI_SLOT(dev->devfn);
- /* This is the slot on bus 0 through which the device is eventually
- reachable. */
-
- /* Now work back up. */
- if ((slot < 3) || (i == 0)) {
- /* Bus 0 (incl. PCI-PCI bridge itself) : perform the final
- swizzle now. */
- result = IRQ_INTA + bridge_swizzle(pin, slot) - 1;
- } else {
- i--;
- slot = path[i].slot;
- pin = path[i].pin;
- if (slot > 0) {
- panic("PCI expansion bus device found - not handled!\n");
- } else {
- if (i > 0) {
- /* 5V slots */
- i--;
- slot = path[i].slot;
- pin = path[i].pin;
- /* 'pin' was swizzled earlier wrt slot, don't do it again. */
- result = IRQ_P2INTA + (pin - 1);
- } else {
- /* IRQ for 2ary PCI-PCI bridge : unused */
- result = -1;
- }
- }
- }
-
- return result;
-}
-
-irqreturn_t pcish5_err_irq(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned pci_int, pci_air, pci_cir, pci_aint;
-
- pci_int = SH5PCI_READ(INT);
- pci_cir = SH5PCI_READ(CIR);
- pci_air = SH5PCI_READ(AIR);
-
- if (pci_int) {
- printk("PCI INTERRUPT (at %08llx)!\n", regs->pc);
- printk("PCI INT -> 0x%x\n", pci_int & 0xffff);
- printk("PCI AIR -> 0x%x\n", pci_air);
- printk("PCI CIR -> 0x%x\n", pci_cir);
- SH5PCI_WRITE(INT, ~0);
- }
-
- pci_aint = SH5PCI_READ(AINT);
- if (pci_aint) {
- printk("PCI ARB INTERRUPT!\n");
- printk("PCI AINT -> 0x%x\n", pci_aint);
- printk("PCI AIR -> 0x%x\n", pci_air);
- printk("PCI CIR -> 0x%x\n", pci_cir);
- SH5PCI_WRITE(AINT, ~0);
- }
-
- return IRQ_HANDLED;
-}
-
-irqreturn_t pcish5_serr_irq(int irq, void *dev_id, struct pt_regs *regs)
-{
- printk("SERR IRQ\n");
-
- return IRQ_NONE;
-}
-
-#define ROUND_UP(x, a) (((x) + (a) - 1) & ~((a) - 1))
-
-static void __init
-pcibios_size_bridge(struct pci_bus *bus, struct resource *ior,
- struct resource *memr)
-{
- struct resource io_res, mem_res;
- struct pci_dev *dev;
- struct pci_dev *bridge = bus->self;
- struct list_head *ln;
-
- if (!bridge)
- return; /* host bridge, nothing to do */
-
- /* set reasonable default locations for pcibios_align_resource */
- io_res.start = PCIBIOS_MIN_IO;
- mem_res.start = PCIBIOS_MIN_MEM;
-
- io_res.end = io_res.start;
- mem_res.end = mem_res.start;
-
- /* Collect information about how our direct children are layed out. */
- for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
- int i;
- dev = pci_dev_b(ln);
-
- /* Skip bridges for now */
- if (dev->class >> 8 == PCI_CLASS_BRIDGE_PCI)
- continue;
-
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource res;
- unsigned long size;
-
- memcpy(&res, &dev->resource[i], sizeof(res));
- size = res.end - res.start + 1;
-
- if (res.flags & IORESOURCE_IO) {
- res.start = io_res.end;
- pcibios_align_resource(dev, &res, size, 0);
- io_res.end = res.start + size;
- } else if (res.flags & IORESOURCE_MEM) {
- res.start = mem_res.end;
- pcibios_align_resource(dev, &res, size, 0);
- mem_res.end = res.start + size;
- }
- }
- }
-
- /* And for all of the subordinate busses. */
- for (ln=bus->children.next; ln != &bus->children; ln=ln->next)
- pcibios_size_bridge(pci_bus_b(ln), &io_res, &mem_res);
-
- /* turn the ending locations into sizes (subtract start) */
- io_res.end -= io_res.start;
- mem_res.end -= mem_res.start;
-
- /* Align the sizes up by bridge rules */
- io_res.end = ROUND_UP(io_res.end, 4*1024) - 1;
- mem_res.end = ROUND_UP(mem_res.end, 1*1024*1024) - 1;
-
- /* Adjust the bridge's allocation requirements */
- bridge->resource[0].end = bridge->resource[0].start + io_res.end;
- bridge->resource[1].end = bridge->resource[1].start + mem_res.end;
-
- bridge->resource[PCI_BRIDGE_RESOURCES].end =
- bridge->resource[PCI_BRIDGE_RESOURCES].start + io_res.end;
- bridge->resource[PCI_BRIDGE_RESOURCES+1].end =
- bridge->resource[PCI_BRIDGE_RESOURCES+1].start + mem_res.end;
-
- /* adjust parent's resource requirements */
- if (ior) {
- ior->end = ROUND_UP(ior->end, 4*1024);
- ior->end += io_res.end;
- }
-
- if (memr) {
- memr->end = ROUND_UP(memr->end, 1*1024*1024);
- memr->end += mem_res.end;
- }
-}
-
-#undef ROUND_UP
-
-static void __init pcibios_size_bridges(void)
-{
- struct resource io_res, mem_res;
-
- memset(&io_res, 0, sizeof(io_res));
- memset(&mem_res, 0, sizeof(mem_res));
-
- pcibios_size_bridge(pci_root_bus, &io_res, &mem_res);
-}
-
-static int __init pcibios_init(void)
-{
- if (request_irq(IRQ_ERR, pcish5_err_irq,
- SA_INTERRUPT, "PCI Error",NULL) < 0) {
- printk(KERN_ERR "PCISH5: Cannot hook PCI_PERR interrupt\n");
- return -EINVAL;
- }
-
- if (request_irq(IRQ_SERR, pcish5_serr_irq,
- SA_INTERRUPT, "PCI SERR interrupt", NULL) < 0) {
- printk(KERN_ERR "PCISH5: Cannot hook PCI_SERR interrupt\n");
- return -EINVAL;
- }
-
- /* The pci subsytem needs to know where memory is and how much
- * of it there is. I've simply made these globals. A better mechanism
- * is probably needed.
- */
- sh5pci_init(__pa(memory_start),
- __pa(memory_end) - __pa(memory_start));
-
- pci_root_bus = pci_scan_bus(0, &pci_config_ops, NULL);
- pcibios_size_bridges();
- pci_assign_unassigned_resources();
- pci_fixup_irqs(no_swizzle, map_cayman_irq);
-
- return 0;
-}
-
-subsys_initcall(pcibios_init);
-
-void __init pcibios_fixup_bus(struct pci_bus *bus)
-{
- struct pci_dev *dev = bus->self;
- int i;
-
-#if 1
- if(dev) {
- for(i=0; i<3; i++) {
- bus->resource[i] =
- &dev->resource[PCI_BRIDGE_RESOURCES+i];
- bus->resource[i]->name = bus->name;
- }
- bus->resource[0]->flags |= IORESOURCE_IO;
- bus->resource[1]->flags |= IORESOURCE_MEM;
-
- /* For now, propogate host limits to the bus;
- * we'll adjust them later. */
-
-#if 1
- bus->resource[0]->end = 64*1024 - 1 ;
- bus->resource[1]->end = PCIBIOS_MIN_MEM+(256*1024*1024)-1;
- bus->resource[0]->start = PCIBIOS_MIN_IO;
- bus->resource[1]->start = PCIBIOS_MIN_MEM;
-#else
- bus->resource[0]->end = 0
- bus->resource[1]->end = 0
- bus->resource[0]->start =0
- bus->resource[1]->start = 0;
-#endif
- /* Turn off downstream PF memory address range by default */
- bus->resource[2]->start = 1024*1024;
- bus->resource[2]->end = bus->resource[2]->start - 1;
- }
-#endif
-
-}
-
+++ /dev/null
-/*
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Defintions for the SH5 PCI hardware.
- */
-
-/* Product ID */
-#define PCISH5_PID 0x350d
-
-/* vendor ID */
-#define PCISH5_VID 0x1054
-
-/* Configuration types */
-#define ST_TYPE0 0x00 /* Configuration cycle type 0 */
-#define ST_TYPE1 0x01 /* Configuration cycle type 1 */
-
-/* VCR data */
-#define PCISH5_VCR_STATUS 0x00
-#define PCISH5_VCR_VERSION 0x08
-
-/*
-** ICR register offsets and bits
-*/
-#define PCISH5_ICR_CR 0x100 /* PCI control register values */
-#define CR_PBAM (1<<12)
-#define CR_PFCS (1<<11)
-#define CR_FTO (1<<10)
-#define CR_PFE (1<<9)
-#define CR_TBS (1<<8)
-#define CR_SPUE (1<<7)
-#define CR_BMAM (1<<6)
-#define CR_HOST (1<<5)
-#define CR_CLKEN (1<<4)
-#define CR_SOCS (1<<3)
-#define CR_IOCS (1<<2)
-#define CR_RSTCTL (1<<1)
-#define CR_CFINT (1<<0)
-#define CR_LOCK_MASK 0xa5000000
-
-#define PCISH5_ICR_INT 0x114 /* Interrupt registert values */
-#define INT_MADIM (1<<2)
-
-#define PCISH5_ICR_LSR0 0X104 /* Local space register values */
-#define PCISH5_ICR_LSR1 0X108 /* Local space register values */
-#define PCISH5_ICR_LAR0 0x10c /* Local address register values */
-#define PCISH5_ICR_LAR1 0x110 /* Local address register values */
-#define PCISH5_ICR_INTM 0x118 /* Interrupt mask register values */
-#define PCISH5_ICR_AIR 0x11c /* Interrupt error address information register values */
-#define PCISH5_ICR_CIR 0x120 /* Interrupt error command information register values */
-#define PCISH5_ICR_AINT 0x130 /* Interrupt error arbiter interrupt register values */
-#define PCISH5_ICR_AINTM 0x134 /* Interrupt error arbiter interrupt mask register values */
-#define PCISH5_ICR_BMIR 0x138 /* Interrupt error info register of bus master values */
-#define PCISH5_ICR_PAR 0x1c0 /* Pio address register values */
-#define PCISH5_ICR_MBR 0x1c4 /* Memory space bank register values */
-#define PCISH5_ICR_IOBR 0x1c8 /* I/O space bank register values */
-#define PCISH5_ICR_PINT 0x1cc /* power management interrupt register values */
-#define PCISH5_ICR_PINTM 0x1d0 /* power management interrupt mask register values */
-#define PCISH5_ICR_MBMR 0x1d8 /* memory space bank mask register values */
-#define PCISH5_ICR_IOBMR 0x1dc /* I/O space bank mask register values */
-#define PCISH5_ICR_CSCR0 0x210 /* PCI cache snoop control register 0 */
-#define PCISH5_ICR_CSCR1 0x214 /* PCI cache snoop control register 1 */
-#define PCISH5_ICR_PDR 0x220 /* Pio data register values */
-
-/* These are configs space registers */
-#define PCISH5_ICR_CSR_VID 0x000 /* Vendor id */
-#define PCISH5_ICR_CSR_DID 0x002 /* Device id */
-#define PCISH5_ICR_CSR_CMD 0x004 /* Command register */
-#define PCISH5_ICR_CSR_STATUS 0x006 /* Stautus */
-#define PCISH5_ICR_CSR_IBAR0 0x010 /* I/O base address register */
-#define PCISH5_ICR_CSR_MBAR0 0x014 /* First Memory base address register */
-#define PCISH5_ICR_CSR_MBAR1 0x018 /* Second Memory base address register */
-
-
-
-/* Base address of registers */
-#define SH5PCI_ICR_BASE (PHYS_PCI_BLOCK + 0x00040000)
-#define SH5PCI_IO_BASE (PHYS_PCI_BLOCK + 0x00800000)
-/* #define SH5PCI_VCR_BASE (P2SEG_PCICB_BLOCK + P2SEG) */
-
-/* Register selection macro */
-#define PCISH5_ICR_REG(x) ( pcicr_virt + (PCISH5_ICR_##x))
-/* #define PCISH5_VCR_REG(x) ( SH5PCI_VCR_BASE (PCISH5_VCR_##x)) */
-
-/* Write I/O functions */
-#define SH5PCI_WRITE(reg,val) ctrl_outl((u32)(val),PCISH5_ICR_REG(reg))
-#define SH5PCI_WRITE_SHORT(reg,val) ctrl_outw((u16)(val),PCISH5_ICR_REG(reg))
-#define SH5PCI_WRITE_BYTE(reg,val) ctrl_outb((u8)(val),PCISH5_ICR_REG(reg))
-
-/* Read I/O functions */
-#define SH5PCI_READ(reg) ctrl_inl(PCISH5_ICR_REG(reg))
-#define SH5PCI_READ_SHORT(reg) ctrl_inw(PCISH5_ICR_REG(reg))
-#define SH5PCI_READ_BYTE(reg) ctrl_inb(PCISH5_ICR_REG(reg))
-
-/* Set PCI config bits */
-#define SET_CONFIG_BITS(bus,devfn,where) ((((bus) << 16) | ((devfn) << 8) | ((where) & ~3)) | 0x80000000)
-
-/* Set PCI command register */
-#define CONFIG_CMD(bus, devfn, where) SET_CONFIG_BITS(bus->number,devfn,where)
-
-/* Size converters */
-#define PCISH5_MEM_SIZCONV(x) (((x / 0x40000) - 1) << 18)
-#define PCISH5_IO_SIZCONV(x) (((x / 0x40000) - 1) << 18)
-
-
+++ /dev/null
-/*
- * $Id: pcibios.c,v 1.1 2001/08/24 12:38:19 dwmw2 Exp $
- *
- * arch/sh/kernel/pcibios.c
- *
- * Copyright (C) 2002 STMicroelectronics Limited
- * Author : David J. McKay
- *
- * Copyright (C) 2004 Richard Curnow, SuperH UK Limited
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- * This is GPL'd.
- *
- * Provided here are generic versions of:
- * pcibios_update_resource()
- * pcibios_align_resource()
- * pcibios_enable_device()
- * pcibios_set_master()
- * pcibios_update_irq()
- *
- * These functions are collected here to reduce duplication of common
- * code amongst the many platform-specific PCI support code files.
- *
- * Platform-specific files are expected to provide:
- * pcibios_fixup_bus()
- * pcibios_init()
- * pcibios_setup()
- * pcibios_fixup_pbus_ranges()
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-
-void
-pcibios_update_resource(struct pci_dev *dev, struct resource *root,
- struct resource *res, int resource)
-{
- u32 new, check;
- int reg;
-
- new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
- if (resource < 6) {
- reg = PCI_BASE_ADDRESS_0 + 4*resource;
- } else if (resource == PCI_ROM_RESOURCE) {
- res->flags |= PCI_ROM_ADDRESS_ENABLE;
- new |= PCI_ROM_ADDRESS_ENABLE;
- reg = dev->rom_base_reg;
- } else {
- /* Somebody might have asked allocation of a non-standard resource */
- return;
- }
-
- pci_write_config_dword(dev, reg, new);
- pci_read_config_dword(dev, reg, &check);
- if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) {
- printk(KERN_ERR "PCI: Error while updating region "
- "%s/%d (%08x != %08x)\n", dev->slot_name, resource,
- new, check);
- }
-}
-
-/*
- * We need to avoid collisions with `mirrored' VGA ports
- * and other strange ISA hardware, so we always want the
- * addresses to be allocated in the 0x000-0x0ff region
- * modulo 0x400.
- */
-void pcibios_align_resource(void *data, struct resource *res,
- unsigned long size, unsigned long align)
-{
- if (res->flags & IORESOURCE_IO) {
- unsigned long start = res->start;
-
- if (start & 0x300) {
- start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
- }
-}
-
-static void pcibios_enable_bridge(struct pci_dev *dev)
-{
- struct pci_bus *bus = dev->subordinate;
- u16 cmd, old_cmd;
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
-
- if (bus->resource[0]->flags & IORESOURCE_IO) {
- cmd |= PCI_COMMAND_IO;
- }
- if ((bus->resource[1]->flags & IORESOURCE_MEM) ||
- (bus->resource[2]->flags & IORESOURCE_PREFETCH)) {
- cmd |= PCI_COMMAND_MEMORY;
- }
-
- if (cmd != old_cmd) {
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- }
-
- printk("PCI bridge %s, command register -> %04x\n",
- pci_name(dev), cmd);
-
-}
-
-
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
- u16 cmd, old_cmd;
- int idx;
- struct resource *r;
-
- if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
- pcibios_enable_bridge(dev);
- }
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
- for(idx=0; idx<6; idx++) {
- if (!(mask & (1 << idx)))
- continue;
- r = &dev->resource[idx];
- if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", dev->slot_name);
- return -EINVAL;
- }
- if (r->flags & IORESOURCE_IO)
- cmd |= PCI_COMMAND_IO;
- if (r->flags & IORESOURCE_MEM)
- cmd |= PCI_COMMAND_MEMORY;
- }
- if (dev->resource[PCI_ROM_RESOURCE].start)
- cmd |= PCI_COMMAND_MEMORY;
- if (cmd != old_cmd) {
- printk(KERN_INFO "PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- }
- return 0;
-}
-
-/*
- * If we set up a device for bus mastering, we need to check and set
- * the latency timer as it may not be properly set.
- */
-unsigned int pcibios_max_latency = 255;
-
-void pcibios_set_master(struct pci_dev *dev)
-{
- u8 lat;
- pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
- if (lat < 16)
- lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
- else if (lat > pcibios_max_latency)
- lat = pcibios_max_latency;
- else
- return;
- printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat);
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
-}
-
-void __init pcibios_update_irq(struct pci_dev *dev, int irq)
-{
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/process.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- * Started from SH3/4 version:
- * Copyright (C) 1999, 2000 Niibe Yutaka & Kaz Kojima
- *
- * In turn started from i386 version:
- * Copyright (C) 1995 Linus Torvalds
- *
- */
-
-/*
- * This file handles the architecture-dependent parts of process handling..
- */
-
-/* Temporary flags/tests. All to be removed/undefined. BEGIN */
-#define IDLE_TRACE
-#define VM_SHOW_TABLES
-#define VM_TEST_FAULT
-#define VM_TEST_RTLBMISS
-#define VM_TEST_WTLBMISS
-
-#undef VM_SHOW_TABLES
-#undef IDLE_TRACE
-/* Temporary flags/tests. All to be removed/undefined. END */
-
-#define __KERNEL_SYSCALLS__
-#include <stdarg.h>
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/rwsem.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/interrupt.h>
-#include <linux/unistd.h>
-#include <linux/delay.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/processor.h> /* includes also <asm/registers.h> */
-#include <asm/mmu_context.h>
-#include <asm/elf.h>
-#include <asm/page.h>
-
-#include <linux/irq.h>
-
-struct task_struct *last_task_used_math = NULL;
-
-#ifdef IDLE_TRACE
-#ifdef VM_SHOW_TABLES
-/* For testing */
-static void print_PTE(long base)
-{
- int i, skip=0;
- long long x, y, *p = (long long *) base;
-
- for (i=0; i< 512; i++, p++){
- if (*p == 0) {
- if (!skip) {
- skip++;
- printk("(0s) ");
- }
- } else {
- skip=0;
- x = (*p) >> 32;
- y = (*p) & 0xffffffff;
- printk("%08Lx%08Lx ", x, y);
- if (!((i+1)&0x3)) printk("\n");
- }
- }
-}
-
-/* For testing */
-static void print_DIR(long base)
-{
- int i, skip=0;
- long *p = (long *) base;
-
- for (i=0; i< 512; i++, p++){
- if (*p == 0) {
- if (!skip) {
- skip++;
- printk("(0s) ");
- }
- } else {
- skip=0;
- printk("%08lx ", *p);
- if (!((i+1)&0x7)) printk("\n");
- }
- }
-}
-
-/* For testing */
-static void print_vmalloc_first_tables(void)
-{
-
-#define PRESENT 0x800 /* Bit 11 */
-
- /*
- * Do it really dirty by looking at raw addresses,
- * raw offsets, no types. If we used pgtable/pgalloc
- * macros/definitions we could hide potential bugs.
- *
- * Note that pointers are 32-bit for CDC.
- */
- long pgdt, pmdt, ptet;
-
- pgdt = (long) &swapper_pg_dir;
- printk("-->PGD (0x%08lx):\n", pgdt);
- print_DIR(pgdt);
- printk("\n");
-
- /* VMALLOC pool is mapped at 0xc0000000, second (pointer) entry in PGD */
- pgdt += 4;
- pmdt = (long) (* (long *) pgdt);
- if (!(pmdt & PRESENT)) {
- printk("No PMD\n");
- return;
- } else pmdt &= 0xfffff000;
-
- printk("-->PMD (0x%08lx):\n", pmdt);
- print_DIR(pmdt);
- printk("\n");
-
- /* Get the pmdt displacement for 0xc0000000 */
- pmdt += 2048;
-
- /* just look at first two address ranges ... */
- /* ... 0xc0000000 ... */
- ptet = (long) (* (long *) pmdt);
- if (!(ptet & PRESENT)) {
- printk("No PTE0\n");
- return;
- } else ptet &= 0xfffff000;
-
- printk("-->PTE0 (0x%08lx):\n", ptet);
- print_PTE(ptet);
- printk("\n");
-
- /* ... 0xc0001000 ... */
- ptet += 4;
- if (!(ptet & PRESENT)) {
- printk("No PTE1\n");
- return;
- } else ptet &= 0xfffff000;
- printk("-->PTE1 (0x%08lx):\n", ptet);
- print_PTE(ptet);
- printk("\n");
-}
-#else
-#define print_vmalloc_first_tables()
-#endif /* VM_SHOW_TABLES */
-
-static void test_VM(void)
-{
- void *a, *b, *c;
-
-#ifdef VM_SHOW_TABLES
- printk("Initial PGD/PMD/PTE\n");
-#endif
- print_vmalloc_first_tables();
-
- printk("Allocating 2 bytes\n");
- a = vmalloc(2);
- print_vmalloc_first_tables();
-
- printk("Allocating 4100 bytes\n");
- b = vmalloc(4100);
- print_vmalloc_first_tables();
-
- printk("Allocating 20234 bytes\n");
- c = vmalloc(20234);
- print_vmalloc_first_tables();
-
-#ifdef VM_TEST_FAULT
- /* Here you may want to fault ! */
-
-#ifdef VM_TEST_RTLBMISS
- printk("Ready to fault upon read.\n");
- if (* (char *) a) {
- printk("RTLBMISSed on area a !\n");
- }
- printk("RTLBMISSed on area a !\n");
-#endif
-
-#ifdef VM_TEST_WTLBMISS
- printk("Ready to fault upon write.\n");
- *((char *) b) = 'L';
- printk("WTLBMISSed on area b !\n");
-#endif
-
-#endif /* VM_TEST_FAULT */
-
- printk("Deallocating the 4100 byte chunk\n");
- vfree(b);
- print_vmalloc_first_tables();
-
- printk("Deallocating the 2 byte chunk\n");
- vfree(a);
- print_vmalloc_first_tables();
-
- printk("Deallocating the last chunk\n");
- vfree(c);
- print_vmalloc_first_tables();
-}
-
-extern unsigned long volatile jiffies;
-int once = 0;
-unsigned long old_jiffies;
-int pid = -1, pgid = -1;
-
-void idle_trace(void)
-{
-
- _syscall0(int, getpid)
- _syscall1(int, getpgid, int, pid)
-
- if (!once) {
- /* VM allocation/deallocation simple test */
- test_VM();
- pid = getpid();
-
- printk("Got all through to Idle !!\n");
- printk("I'm now going to loop forever ...\n");
- printk("Any ! below is a timer tick.\n");
- printk("Any . below is a getpgid system call from pid = %d.\n", pid);
-
-
- old_jiffies = jiffies;
- once++;
- }
-
- if (old_jiffies != jiffies) {
- old_jiffies = jiffies - old_jiffies;
- switch (old_jiffies) {
- case 1:
- printk("!");
- break;
- case 2:
- printk("!!");
- break;
- case 3:
- printk("!!!");
- break;
- case 4:
- printk("!!!!");
- break;
- default:
- printk("(%d!)", (int) old_jiffies);
- }
- old_jiffies = jiffies;
- }
- pgid = getpgid(pid);
- printk(".");
-}
-#else
-#define idle_trace() do { } while (0)
-#endif /* IDLE_TRACE */
-
-static int hlt_counter = 1;
-
-#define HARD_IDLE_TIMEOUT (HZ / 3)
-
-void disable_hlt(void)
-{
- hlt_counter++;
-}
-
-void enable_hlt(void)
-{
- hlt_counter--;
-}
-
-static int __init nohlt_setup(char *__unused)
-{
- hlt_counter = 1;
- return 1;
-}
-
-static int __init hlt_setup(char *__unused)
-{
- hlt_counter = 0;
- return 1;
-}
-
-__setup("nohlt", nohlt_setup);
-__setup("hlt", hlt_setup);
-
-static inline void hlt(void)
-{
- if (hlt_counter)
- return;
-
- __asm__ __volatile__ ("sleep" : : : "memory");
-}
-
-/*
- * The idle loop on a uniprocessor SH..
- */
-void default_idle(void)
-{
- /* endless idle loop with no priority at all */
- while (1) {
- if (hlt_counter) {
- while (1)
- if (need_resched())
- break;
- } else {
- local_irq_disable();
- while (!need_resched()) {
- local_irq_enable();
- idle_trace();
- hlt();
- local_irq_disable();
- }
- local_irq_enable();
- }
- schedule();
- }
-}
-
-void cpu_idle(void *unused)
-{
- default_idle();
-}
-
-void machine_restart(char * __unused)
-{
- extern void phys_stext(void);
-
- phys_stext();
-}
-
-void machine_halt(void)
-{
- for (;;);
-}
-
-void machine_power_off(void)
-{
- extern void enter_deep_standby(void);
-
- enter_deep_standby();
-}
-
-void show_regs(struct pt_regs * regs)
-{
- unsigned long long ah, al, bh, bl, ch, cl;
-
- printk("\n");
-
- ah = (regs->pc) >> 32;
- al = (regs->pc) & 0xffffffff;
- bh = (regs->regs[18]) >> 32;
- bl = (regs->regs[18]) & 0xffffffff;
- ch = (regs->regs[15]) >> 32;
- cl = (regs->regs[15]) & 0xffffffff;
- printk("PC : %08Lx%08Lx LINK: %08Lx%08Lx SP : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->sr) >> 32;
- al = (regs->sr) & 0xffffffff;
- asm volatile ("getcon " __TEA ", %0" : "=r" (bh));
- asm volatile ("getcon " __TEA ", %0" : "=r" (bl));
- bh = (bh) >> 32;
- bl = (bl) & 0xffffffff;
- asm volatile ("getcon " __KCR0 ", %0" : "=r" (ch));
- asm volatile ("getcon " __KCR0 ", %0" : "=r" (cl));
- ch = (ch) >> 32;
- cl = (cl) & 0xffffffff;
- printk("SR : %08Lx%08Lx TEA : %08Lx%08Lx KCR0: %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[0]) >> 32;
- al = (regs->regs[0]) & 0xffffffff;
- bh = (regs->regs[1]) >> 32;
- bl = (regs->regs[1]) & 0xffffffff;
- ch = (regs->regs[2]) >> 32;
- cl = (regs->regs[2]) & 0xffffffff;
- printk("R0 : %08Lx%08Lx R1 : %08Lx%08Lx R2 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[3]) >> 32;
- al = (regs->regs[3]) & 0xffffffff;
- bh = (regs->regs[4]) >> 32;
- bl = (regs->regs[4]) & 0xffffffff;
- ch = (regs->regs[5]) >> 32;
- cl = (regs->regs[5]) & 0xffffffff;
- printk("R3 : %08Lx%08Lx R4 : %08Lx%08Lx R5 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[6]) >> 32;
- al = (regs->regs[6]) & 0xffffffff;
- bh = (regs->regs[7]) >> 32;
- bl = (regs->regs[7]) & 0xffffffff;
- ch = (regs->regs[8]) >> 32;
- cl = (regs->regs[8]) & 0xffffffff;
- printk("R6 : %08Lx%08Lx R7 : %08Lx%08Lx R8 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[9]) >> 32;
- al = (regs->regs[9]) & 0xffffffff;
- bh = (regs->regs[10]) >> 32;
- bl = (regs->regs[10]) & 0xffffffff;
- ch = (regs->regs[11]) >> 32;
- cl = (regs->regs[11]) & 0xffffffff;
- printk("R9 : %08Lx%08Lx R10 : %08Lx%08Lx R11 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[12]) >> 32;
- al = (regs->regs[12]) & 0xffffffff;
- bh = (regs->regs[13]) >> 32;
- bl = (regs->regs[13]) & 0xffffffff;
- ch = (regs->regs[14]) >> 32;
- cl = (regs->regs[14]) & 0xffffffff;
- printk("R12 : %08Lx%08Lx R13 : %08Lx%08Lx R14 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[16]) >> 32;
- al = (regs->regs[16]) & 0xffffffff;
- bh = (regs->regs[17]) >> 32;
- bl = (regs->regs[17]) & 0xffffffff;
- ch = (regs->regs[19]) >> 32;
- cl = (regs->regs[19]) & 0xffffffff;
- printk("R16 : %08Lx%08Lx R17 : %08Lx%08Lx R19 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[20]) >> 32;
- al = (regs->regs[20]) & 0xffffffff;
- bh = (regs->regs[21]) >> 32;
- bl = (regs->regs[21]) & 0xffffffff;
- ch = (regs->regs[22]) >> 32;
- cl = (regs->regs[22]) & 0xffffffff;
- printk("R20 : %08Lx%08Lx R21 : %08Lx%08Lx R22 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[23]) >> 32;
- al = (regs->regs[23]) & 0xffffffff;
- bh = (regs->regs[24]) >> 32;
- bl = (regs->regs[24]) & 0xffffffff;
- ch = (regs->regs[25]) >> 32;
- cl = (regs->regs[25]) & 0xffffffff;
- printk("R23 : %08Lx%08Lx R24 : %08Lx%08Lx R25 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[26]) >> 32;
- al = (regs->regs[26]) & 0xffffffff;
- bh = (regs->regs[27]) >> 32;
- bl = (regs->regs[27]) & 0xffffffff;
- ch = (regs->regs[28]) >> 32;
- cl = (regs->regs[28]) & 0xffffffff;
- printk("R26 : %08Lx%08Lx R27 : %08Lx%08Lx R28 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[29]) >> 32;
- al = (regs->regs[29]) & 0xffffffff;
- bh = (regs->regs[30]) >> 32;
- bl = (regs->regs[30]) & 0xffffffff;
- ch = (regs->regs[31]) >> 32;
- cl = (regs->regs[31]) & 0xffffffff;
- printk("R29 : %08Lx%08Lx R30 : %08Lx%08Lx R31 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[32]) >> 32;
- al = (regs->regs[32]) & 0xffffffff;
- bh = (regs->regs[33]) >> 32;
- bl = (regs->regs[33]) & 0xffffffff;
- ch = (regs->regs[34]) >> 32;
- cl = (regs->regs[34]) & 0xffffffff;
- printk("R32 : %08Lx%08Lx R33 : %08Lx%08Lx R34 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[35]) >> 32;
- al = (regs->regs[35]) & 0xffffffff;
- bh = (regs->regs[36]) >> 32;
- bl = (regs->regs[36]) & 0xffffffff;
- ch = (regs->regs[37]) >> 32;
- cl = (regs->regs[37]) & 0xffffffff;
- printk("R35 : %08Lx%08Lx R36 : %08Lx%08Lx R37 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[38]) >> 32;
- al = (regs->regs[38]) & 0xffffffff;
- bh = (regs->regs[39]) >> 32;
- bl = (regs->regs[39]) & 0xffffffff;
- ch = (regs->regs[40]) >> 32;
- cl = (regs->regs[40]) & 0xffffffff;
- printk("R38 : %08Lx%08Lx R39 : %08Lx%08Lx R40 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[41]) >> 32;
- al = (regs->regs[41]) & 0xffffffff;
- bh = (regs->regs[42]) >> 32;
- bl = (regs->regs[42]) & 0xffffffff;
- ch = (regs->regs[43]) >> 32;
- cl = (regs->regs[43]) & 0xffffffff;
- printk("R41 : %08Lx%08Lx R42 : %08Lx%08Lx R43 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[44]) >> 32;
- al = (regs->regs[44]) & 0xffffffff;
- bh = (regs->regs[45]) >> 32;
- bl = (regs->regs[45]) & 0xffffffff;
- ch = (regs->regs[46]) >> 32;
- cl = (regs->regs[46]) & 0xffffffff;
- printk("R44 : %08Lx%08Lx R45 : %08Lx%08Lx R46 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[47]) >> 32;
- al = (regs->regs[47]) & 0xffffffff;
- bh = (regs->regs[48]) >> 32;
- bl = (regs->regs[48]) & 0xffffffff;
- ch = (regs->regs[49]) >> 32;
- cl = (regs->regs[49]) & 0xffffffff;
- printk("R47 : %08Lx%08Lx R48 : %08Lx%08Lx R49 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[50]) >> 32;
- al = (regs->regs[50]) & 0xffffffff;
- bh = (regs->regs[51]) >> 32;
- bl = (regs->regs[51]) & 0xffffffff;
- ch = (regs->regs[52]) >> 32;
- cl = (regs->regs[52]) & 0xffffffff;
- printk("R50 : %08Lx%08Lx R51 : %08Lx%08Lx R52 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[53]) >> 32;
- al = (regs->regs[53]) & 0xffffffff;
- bh = (regs->regs[54]) >> 32;
- bl = (regs->regs[54]) & 0xffffffff;
- ch = (regs->regs[55]) >> 32;
- cl = (regs->regs[55]) & 0xffffffff;
- printk("R53 : %08Lx%08Lx R54 : %08Lx%08Lx R55 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[56]) >> 32;
- al = (regs->regs[56]) & 0xffffffff;
- bh = (regs->regs[57]) >> 32;
- bl = (regs->regs[57]) & 0xffffffff;
- ch = (regs->regs[58]) >> 32;
- cl = (regs->regs[58]) & 0xffffffff;
- printk("R56 : %08Lx%08Lx R57 : %08Lx%08Lx R58 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[59]) >> 32;
- al = (regs->regs[59]) & 0xffffffff;
- bh = (regs->regs[60]) >> 32;
- bl = (regs->regs[60]) & 0xffffffff;
- ch = (regs->regs[61]) >> 32;
- cl = (regs->regs[61]) & 0xffffffff;
- printk("R59 : %08Lx%08Lx R60 : %08Lx%08Lx R61 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[62]) >> 32;
- al = (regs->regs[62]) & 0xffffffff;
- bh = (regs->tregs[0]) >> 32;
- bl = (regs->tregs[0]) & 0xffffffff;
- ch = (regs->tregs[1]) >> 32;
- cl = (regs->tregs[1]) & 0xffffffff;
- printk("R62 : %08Lx%08Lx T0 : %08Lx%08Lx T1 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->tregs[2]) >> 32;
- al = (regs->tregs[2]) & 0xffffffff;
- bh = (regs->tregs[3]) >> 32;
- bl = (regs->tregs[3]) & 0xffffffff;
- ch = (regs->tregs[4]) >> 32;
- cl = (regs->tregs[4]) & 0xffffffff;
- printk("T2 : %08Lx%08Lx T3 : %08Lx%08Lx T4 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->tregs[5]) >> 32;
- al = (regs->tregs[5]) & 0xffffffff;
- bh = (regs->tregs[6]) >> 32;
- bl = (regs->tregs[6]) & 0xffffffff;
- ch = (regs->tregs[7]) >> 32;
- cl = (regs->tregs[7]) & 0xffffffff;
- printk("T5 : %08Lx%08Lx T6 : %08Lx%08Lx T7 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- /*
- * If we're in kernel mode, dump the stack too..
- */
- if (!user_mode(regs)) {
- void show_stack(struct task_struct *tsk, unsigned long *sp);
- unsigned long sp = regs->regs[15] & 0xffffffff;
- struct task_struct *tsk = get_current();
-
- tsk->thread.kregs = regs;
-
- show_stack(tsk, (unsigned long *)sp);
- }
-}
-
-struct task_struct * alloc_task_struct(void)
-{
- /* Get task descriptor pages */
- return (struct task_struct *)
- __get_free_pages(GFP_KERNEL, get_order(THREAD_SIZE));
-}
-
-void free_task_struct(struct task_struct *p)
-{
- free_pages((unsigned long) p, get_order(THREAD_SIZE));
-}
-
-/*
- * Create a kernel thread
- */
-
-/*
- * This is the mechanism for creating a new kernel thread.
- *
- * NOTE! Only a kernel-only process(ie the swapper or direct descendants
- * who haven't done an "execve()") should use this: it will work within
- * a system call from a "real" process, but the process memory space will
- * not be free'd until both the parent and the child have exited.
- */
-int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
-{
- /* A bit less processor dependent than older sh ... */
-
- unsigned int reply;
-
-static __inline__ _syscall2(int,clone,unsigned long,flags,unsigned long,newsp)
-static __inline__ _syscall1(int,exit,int,ret)
-
- reply = clone(flags | CLONE_VM, 0);
- if (!reply) {
- /* Child */
- reply = exit(fn(arg));
- }
-
- return reply;
-}
-
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
- /* See arch/sparc/kernel/process.c for the precedent for doing this -- RPC.
-
- The SH-5 FPU save/restore approach relies on last_task_used_math
- pointing to a live task_struct. When another task tries to use the
- FPU for the 1st time, the FPUDIS trap handling (see
- arch/sh64/kernel/fpu.c) will save the existing FPU state to the
- FP regs field within last_task_used_math before re-loading the new
- task's FPU state (or initialising it if the FPU has been used
- before). So if last_task_used_math is stale, and its page has already been
- re-allocated for another use, the consequences are rather grim. Unless we
- null it here, there is no other path through which it would get safely
- nulled. */
-
-#ifndef CONFIG_NOFPU_SUPPORT
- if (last_task_used_math == current) {
- last_task_used_math = NULL;
- }
-#endif
-}
-
-void flush_thread(void)
-{
-
- /* Called by fs/exec.c (flush_old_exec) to remove traces of a
- * previously running executable. */
-#ifndef CONFIG_NOFPU_SUPPORT
- if (last_task_used_math == current) {
- last_task_used_math = NULL;
- }
- /* Force FPU state to be reinitialised after exec */
- current->used_math = 0;
-#endif
-
- /* if we are a kernel thread, about to change to user thread,
- * update kreg
- */
- if(current->thread.kregs==&fake_swapper_regs) {
- current->thread.kregs =
- ((struct pt_regs *)(THREAD_SIZE + (unsigned long) current) - 1);
- current->thread.uregs = current->thread.kregs;
- }
-}
-
-void release_thread(struct task_struct *dead_task)
-{
- /* do nothing */
-}
-
-/* Fill in the fpu structure for a core dump.. */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
-{
-#ifndef CONFIG_NOFPU_SUPPORT
- int fpvalid;
- struct task_struct *tsk = current;
-
- fpvalid = tsk->used_math;
- if (fpvalid) {
- if (current == last_task_used_math) {
- grab_fpu();
- fpsave(&tsk->thread.fpu.hard);
- release_fpu();
- last_task_used_math = 0;
- regs->sr |= SR_FD;
- }
-
- memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
- }
-
- return fpvalid;
-#else
- return 0; /* Task didn't use the fpu at all. */
-#endif
-}
-
-asmlinkage void ret_from_fork(void);
-
-int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
- unsigned long unused,
- struct task_struct *p, struct pt_regs *regs)
-{
- struct pt_regs *childregs;
- unsigned long long se; /* Sign extension */
-
-#ifndef CONFIG_NOFPU_SUPPORT
- if(last_task_used_math == current) {
- grab_fpu();
- fpsave(¤t->thread.fpu.hard);
- release_fpu();
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-#endif
- /* Copy from sh version */
- childregs = ((struct pt_regs *)(THREAD_SIZE + (unsigned long) p->thread_info )) - 1;
-
- *childregs = *regs;
-
- if (user_mode(regs)) {
- childregs->regs[15] = usp;
- p->thread.uregs = childregs;
- } else {
- childregs->regs[15] = (unsigned long)p->thread_info + THREAD_SIZE;
- }
-
- childregs->regs[9] = 0; /* Set return value for child */
- childregs->sr |= SR_FD; /* Invalidate FPU flag */
-
- /* From sh */
- p->set_child_tid = p->clear_child_tid = NULL;
-
- p->thread.sp = (unsigned long) childregs;
- p->thread.pc = (unsigned long) ret_from_fork;
-
- /*
- * Sign extend the edited stack.
- * Note that thread.pc and thread.pc will stay
- * 32-bit wide and context switch must take care
- * of NEFF sign extension.
- */
-
- se = childregs->regs[15];
- se = (se & NEFF_SIGN) ? (se | NEFF_MASK) : se;
- childregs->regs[15] = se;
-
- return 0;
-}
-
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
- dump->magic = CMAGIC;
- dump->start_code = current->mm->start_code;
- dump->start_data = current->mm->start_data;
- dump->start_stack = regs->regs[15] & ~(PAGE_SIZE - 1);
- dump->u_tsize = (current->mm->end_code - dump->start_code) >> PAGE_SHIFT;
- dump->u_dsize = (current->mm->brk + (PAGE_SIZE-1) - dump->start_data) >> PAGE_SHIFT;
- dump->u_ssize = (current->mm->start_stack - dump->start_stack +
- PAGE_SIZE - 1) >> PAGE_SHIFT;
- /* Debug registers will come here. */
-
- dump->regs = *regs;
-
- dump->u_fpvalid = dump_fpu(regs, &dump->fpu);
-}
-
-asmlinkage int sys_fork(unsigned long r2, unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs *pregs)
-{
- return do_fork(SIGCHLD, pregs->regs[15], pregs, 0, 0, 0);
-}
-
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs *pregs)
-{
- if (!newsp)
- newsp = pregs->regs[15];
- return do_fork(clone_flags & ~CLONE_IDLETASK, newsp, pregs, 0, 0, 0);
-}
-
-/*
- * This is trivial, and on the face of it looks like it
- * could equally well be done in user mode.
- *
- * Not so, for quite unobvious reasons - register pressure.
- * In user mode vfork() cannot have a stack frame, and if
- * done by calling the "clone()" system call directly, you
- * do not have enough call-clobbered registers to hold all
- * the information you need.
- */
-asmlinkage int sys_vfork(unsigned long r2, unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs *pregs)
-{
- return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, pregs->regs[15], pregs, 0, 0, 0);
-}
-
-/*
- * sys_execve() executes a new program.
- */
-asmlinkage int sys_execve(char *ufilename, char **uargv,
- char **uenvp, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs *pregs)
-{
- int error;
- char *filename;
-
- lock_kernel();
- filename = getname((char __user *)ufilename);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- goto out;
-
- error = do_execve(filename,
- (char __user * __user *)uargv,
- (char __user * __user *)uenvp,
- pregs);
- if (error == 0)
- current->ptrace &= ~PT_DTRACE;
- putname(filename);
-out:
- unlock_kernel();
- return error;
-}
-
-/*
- * These bracket the sleeping functions..
- */
-extern void interruptible_sleep_on(wait_queue_head_t *q);
-
-#define mid_sched ((unsigned long) interruptible_sleep_on)
-
-static int in_sh64_switch_to(unsigned long pc)
-{
- extern char __sh64_switch_to_end;
- /* For a sleeping task, the PC is somewhere in the middle of the function,
- so we don't have to worry about masking the LSB off */
- return (pc >= (unsigned long) sh64_switch_to) &&
- (pc < (unsigned long) &__sh64_switch_to_end);
-}
-
-unsigned long get_wchan(struct task_struct *p)
-{
- unsigned long schedule_fp;
- unsigned long sh64_switch_to_fp;
- unsigned long schedule_caller_pc;
- unsigned long pc;
-
- if (!p || p == current || p->state == TASK_RUNNING)
- return 0;
-
- /*
- * The same comment as on the Alpha applies here, too ...
- */
- pc = thread_saved_pc(p);
-
-#if CONFIG_FRAME_POINTER
- if (in_sh64_switch_to(pc)) {
- sh64_switch_to_fp = (long) p->thread.sp;
- /* r14 is saved at offset 4 in the sh64_switch_to frame */
- schedule_fp = *(unsigned long *) (long)(sh64_switch_to_fp + 4);
-
- /* and the caller of 'schedule' is (currently!) saved at offset 24
- in the frame of schedule (from disasm) */
- schedule_caller_pc = *(unsigned long *) (long)(schedule_fp + 24);
- return schedule_caller_pc;
- }
-#endif
- return pc;
-}
-
-/* Provide a /proc/asids file that lists out the
- ASIDs currently associated with the processes. (If the DM.PC register is
- examined through the debug link, this shows ASID + PC. To make use of this,
- the PID->ASID relationship needs to be known. This is primarily for
- debugging.)
- */
-
-#if defined(CONFIG_SH64_PROC_ASIDS)
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-
-static int
-asids_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void *data)
-{
- int len=0;
- struct task_struct *p;
- read_lock(&tasklist_lock);
- for_each_task(p) {
- int pid = p->pid;
- struct mm_struct *mm;
- if (!pid) continue;
- mm = p->mm;
- if (mm) {
- unsigned long asid, context;
- context = mm->context;
- asid = (context & 0xff);
- len += sprintf(buf+len, "%5d : %02x\n", pid, asid);
- } else {
- len += sprintf(buf+len, "%5d : (none)\n", pid);
- }
- }
- read_unlock(&tasklist_lock);
- *eof = 1;
- return len;
-}
-
-static int __init register_proc_asids(void)
-{
- create_proc_read_entry("asids", 0, NULL, asids_proc_info, NULL);
- return 0;
-}
-
-__initcall(register_proc_asids);
-#endif
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/ptrace.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- * Started from SH3/4 version:
- * SuperH version: Copyright (C) 1999, 2000 Kaz Kojima & Niibe Yutaka
- *
- * Original x86 implementation:
- * By Ross Biro 1/23/92
- * edited by Linus Torvalds
- *
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/mmu_context.h>
-
-/* This mask defines the bits of the SR which the user is not allowed to
- change, which are everything except S, Q, M, PR, SZ, FR. */
-#define SR_MASK (0xffff8cfd)
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/*
- * This routine will get a word from the user area in the process kernel stack.
- */
-static inline int get_stack_long(struct task_struct *task, int offset)
-{
- unsigned char *stack;
-
- stack = (unsigned char *)(task->thread.uregs);
- stack += offset;
- return (*((int *)stack));
-}
-
-static inline unsigned long
-get_fpu_long(struct task_struct *task, unsigned long addr)
-{
- unsigned long tmp;
- struct pt_regs *regs;
- regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
-
- if (!task->used_math) {
- if (addr == offsetof(struct user_fpu_struct, fpscr)) {
- tmp = FPSCR_INIT;
- } else {
- tmp = 0xffffffffUL; /* matches initial value in fpu.c */
- }
- return tmp;
- }
-
- if (last_task_used_math == task) {
- grab_fpu();
- fpsave(&task->thread.fpu.hard);
- release_fpu();
- last_task_used_math = 0;
- regs->sr |= SR_FD;
- }
-
- tmp = ((long *)&task->thread.fpu)[addr / sizeof(unsigned long)];
- return tmp;
-}
-
-/*
- * This routine will put a word into the user area in the process kernel stack.
- */
-static inline int put_stack_long(struct task_struct *task, int offset,
- unsigned long data)
-{
- unsigned char *stack;
-
- stack = (unsigned char *)(task->thread.uregs);
- stack += offset;
- *(unsigned long *) stack = data;
- return 0;
-}
-
-static inline int
-put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
-{
- struct pt_regs *regs;
-
- regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
-
- if (!task->used_math) {
- fpinit(&task->thread.fpu.hard);
- task->used_math = 1;
- } else if (last_task_used_math == task) {
- grab_fpu();
- fpsave(&task->thread.fpu.hard);
- release_fpu();
- last_task_used_math = 0;
- regs->sr |= SR_FD;
- }
-
- ((long *)&task->thread.fpu)[addr / sizeof(unsigned long)] = data;
- return 0;
-}
-
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
-{
- struct task_struct *child;
- int ret;
-
- lock_kernel();
- ret = -EPERM;
- if (request == PTRACE_TRACEME) {
- /* are we already being traced? */
- if (current->ptrace & PT_PTRACED)
- goto out;
- /* set the ptrace bit in the process flags. */
- current->ptrace |= PT_PTRACED;
- ret = 0;
- goto out;
- }
- ret = -ESRCH;
- read_lock(&tasklist_lock);
- child = find_task_by_pid(pid);
- if (child)
- get_task_struct(child);
- read_unlock(&tasklist_lock);
- if (!child)
- goto out;
-
- ret = -EPERM;
- if (pid == 1) /* you may not mess with init */
- goto out_tsk;
-
- if (request == PTRACE_ATTACH) {
- ret = ptrace_attach(child);
- goto out_tsk;
- }
-
- ret = ptrace_check_attach(child, request == PTRACE_KILL);
- if (ret < 0)
- goto out_tsk;
-
- switch (request) {
- /* when I and D space are separate, these will need to be fixed. */
- case PTRACE_PEEKTEXT: /* read word at location addr. */
- case PTRACE_PEEKDATA: {
- unsigned long tmp;
- int copied;
-
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
- ret = -EIO;
- if (copied != sizeof(tmp))
- break;
- ret = put_user(tmp,(unsigned long *) data);
- break;
- }
-
- /* read the word at location addr in the USER area. */
- case PTRACE_PEEKUSR: {
- unsigned long tmp;
-
- ret = -EIO;
- if ((addr & 3) || addr < 0)
- break;
-
- if (addr < sizeof(struct pt_regs))
- tmp = get_stack_long(child, addr);
- else if ((addr >= offsetof(struct user, fpu)) &&
- (addr < offsetof(struct user, u_fpvalid))) {
- tmp = get_fpu_long(child, addr - offsetof(struct user, fpu));
- } else if (addr == offsetof(struct user, u_fpvalid)) {
- tmp = child->used_math;
- } else {
- break;
- }
- ret = put_user(tmp, (unsigned long *)data);
- break;
- }
-
- /* when I and D space are separate, this will have to be fixed. */
- case PTRACE_POKETEXT: /* write the word at location addr. */
- case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- break;
- ret = -EIO;
- break;
-
- case PTRACE_POKEUSR:
- /* write the word at location addr in the USER area. We must
- disallow any changes to certain SR bits or u_fpvalid, since
- this could crash the kernel or result in a security
- loophole. */
- ret = -EIO;
- if ((addr & 3) || addr < 0)
- break;
-
- if (addr < sizeof(struct pt_regs)) {
- /* Ignore change of top 32 bits of SR */
- if (addr == offsetof (struct pt_regs, sr)+4)
- {
- ret = 0;
- break;
- }
- /* If lower 32 bits of SR, ignore non-user bits */
- if (addr == offsetof (struct pt_regs, sr))
- {
- long cursr = get_stack_long(child, addr);
- data &= ~(SR_MASK);
- data |= (cursr & SR_MASK);
- }
- ret = put_stack_long(child, addr, data);
- }
- else if ((addr >= offsetof(struct user, fpu)) &&
- (addr < offsetof(struct user, u_fpvalid))) {
- ret = put_fpu_long(child, addr - offsetof(struct user, fpu), data);
- }
- break;
-
- case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
- case PTRACE_CONT: { /* restart after signal. */
- ret = -EIO;
- if ((unsigned long) data > _NSIG)
- break;
- if (request == PTRACE_SYSCALL)
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- else
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- child->exit_code = data;
- wake_up_process(child);
- ret = 0;
- break;
- }
-
-/*
- * make the child exit. Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
- case PTRACE_KILL: {
- ret = 0;
- if (child->state == TASK_ZOMBIE) /* already dead */
- break;
- child->exit_code = SIGKILL;
- wake_up_process(child);
- break;
- }
-
- case PTRACE_SINGLESTEP: { /* set the trap flag. */
- struct pt_regs *regs;
-
- ret = -EIO;
- if ((unsigned long) data > _NSIG)
- break;
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- if ((child->ptrace & PT_DTRACE) == 0) {
- /* Spurious delayed TF traps may occur */
- child->ptrace |= PT_DTRACE;
- }
-
- regs = child->thread.uregs;
-
- regs->sr |= SR_SSTEP; /* auto-resetting upon exception */
-
- child->exit_code = data;
- /* give it a chance to run. */
- wake_up_process(child);
- ret = 0;
- break;
- }
-
- case PTRACE_DETACH: /* detach a process that was attached. */
- ret = ptrace_detach(child, data);
- break;
-
- default:
- ret = ptrace_request(child, request, addr, data);
- break;
- }
-out_tsk:
- put_task_struct(child);
-out:
- unlock_kernel();
- return ret;
-}
-
-asmlinkage void syscall_trace(void)
-{
- struct task_struct *tsk = current;
-
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- return;
- if (!(tsk->ptrace & PT_PTRACED))
- return;
-
- tsk->exit_code = SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
- ? 0x80 : 0);
- tsk->state = TASK_STOPPED;
- notify_parent(tsk, SIGCHLD);
- schedule();
- /*
- * this isn't the same as continuing with a signal, but it will do
- * for normal use. strace only continues with a signal if the
- * stopping signal is not SIGTRAP. -brl
- */
- if (tsk->exit_code) {
- send_sig(tsk->exit_code, tsk, 1);
- tsk->exit_code = 0;
- }
-}
-
-/* Called with interrupts disabled */
-asmlinkage void do_single_step(unsigned long long vec, struct pt_regs *regs)
-{
- /* This is called after a single step exception (DEBUGSS).
- There is no need to change the PC, as it is a post-execution
- exception, as entry.S does not do anything to the PC for DEBUGSS.
- We need to clear the Single Step setting in SR to avoid
- continually stepping. */
- local_irq_enable();
- regs->sr &= ~SR_SSTEP;
- force_sig(SIGTRAP, current);
-}
-
-/* Called with interrupts disabled */
-asmlinkage void do_software_break_point(unsigned long long vec,
- struct pt_regs *regs)
-{
- /* We need to forward step the PC, to counteract the backstep done
- in signal.c. */
- local_irq_enable();
- force_sig(SIGTRAP, current);
- regs->pc += 4;
-}
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
- /* nothing to do.. */
-}
+++ /dev/null
-/*
- * Just taken from alpha implementation.
- * This can't work well, perhaps.
- */
-/*
- * Generic semaphore code. Buyer beware. Do your own
- * specific changes in <asm/semaphore-helper.h>
- */
-
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/init.h>
-#include <asm/semaphore.h>
-#include <asm/semaphore-helper.h>
-
-spinlock_t semaphore_wake_lock;
-
-/*
- * Semaphores are implemented using a two-way counter:
- * The "count" variable is decremented for each process
- * that tries to sleep, while the "waking" variable is
- * incremented when the "up()" code goes to wake up waiting
- * processes.
- *
- * Notably, the inline "up()" and "down()" functions can
- * efficiently test if they need to do any extra work (up
- * needs to do something only if count was negative before
- * the increment operation.
- *
- * waking_non_zero() (from asm/semaphore.h) must execute
- * atomically.
- *
- * When __up() is called, the count was negative before
- * incrementing it, and we need to wake up somebody.
- *
- * This routine adds one to the count of processes that need to
- * wake up and exit. ALL waiting processes actually wake up but
- * only the one that gets to the "waking" field first will gate
- * through and acquire the semaphore. The others will go back
- * to sleep.
- *
- * Note that these functions are only called when there is
- * contention on the lock, and as such all this is the
- * "non-critical" part of the whole semaphore business. The
- * critical part is the inline stuff in <asm/semaphore.h>
- * where we want to avoid any extra jumps and calls.
- */
-void __up(struct semaphore *sem)
-{
- wake_one_more(sem);
- wake_up(&sem->wait);
-}
-
-/*
- * Perform the "down" function. Return zero for semaphore acquired,
- * return negative for signalled out of the function.
- *
- * If called from __down, the return is ignored and the wait loop is
- * not interruptible. This means that a task waiting on a semaphore
- * using "down()" cannot be killed until someone does an "up()" on
- * the semaphore.
- *
- * If called from __down_interruptible, the return value gets checked
- * upon return. If the return value is negative then the task continues
- * with the negative value in the return register (it can be tested by
- * the caller).
- *
- * Either form may be used in conjunction with "up()".
- *
- */
-
-#define DOWN_VAR \
- struct task_struct *tsk = current; \
- wait_queue_t wait; \
- init_waitqueue_entry(&wait, tsk);
-
-#define DOWN_HEAD(task_state) \
- \
- \
- tsk->state = (task_state); \
- add_wait_queue(&sem->wait, &wait); \
- \
- /* \
- * Ok, we're set up. sem->count is known to be less than zero \
- * so we must wait. \
- * \
- * We can let go the lock for purposes of waiting. \
- * We re-acquire it after awaking so as to protect \
- * all semaphore operations. \
- * \
- * If "up()" is called before we call waking_non_zero() then \
- * we will catch it right away. If it is called later then \
- * we will have to go through a wakeup cycle to catch it. \
- * \
- * Multiple waiters contend for the semaphore lock to see \
- * who gets to gate through and who has to wait some more. \
- */ \
- for (;;) {
-
-#define DOWN_TAIL(task_state) \
- tsk->state = (task_state); \
- } \
- tsk->state = TASK_RUNNING; \
- remove_wait_queue(&sem->wait, &wait);
-
-void __sched __down(struct semaphore * sem)
-{
- DOWN_VAR
- DOWN_HEAD(TASK_UNINTERRUPTIBLE)
- if (waking_non_zero(sem))
- break;
- schedule();
- DOWN_TAIL(TASK_UNINTERRUPTIBLE)
-}
-
-int __sched __down_interruptible(struct semaphore * sem)
-{
- int ret = 0;
- DOWN_VAR
- DOWN_HEAD(TASK_INTERRUPTIBLE)
-
- ret = waking_non_zero_interruptible(sem, tsk);
- if (ret)
- {
- if (ret == 1)
- /* ret != 0 only if we get interrupted -arca */
- ret = 0;
- break;
- }
- schedule();
- DOWN_TAIL(TASK_INTERRUPTIBLE)
- return ret;
-}
-
-int __down_trylock(struct semaphore * sem)
-{
- return waking_non_zero_trylock(sem);
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/setup.c
- *
- * sh64 Arch Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- * benedict.gaster@superh.com: 2nd May 2002
- * Modified to use the empty_zero_page to pass command line arguments.
- *
- * benedict.gaster@superh.com: 3rd May 2002
- * Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org: 15th May 2003
- * Added generic procfs cpuinfo reporting. Make boards just export their name.
- *
- * lethal@linux-sh.org: 25th May 2003
- * Added generic get_cpu_subtype() for subtype reporting from cpu_data->type.
- *
- */
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/tty.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <linux/blkdev.h>
-#include <linux/bootmem.h>
-#include <linux/console.h>
-#include <linux/root_dev.h>
-#include <linux/cpu.h>
-#include <linux/initrd.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/platform.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/sections.h>
-#include <asm/setup.h>
-#include <asm/smp.h>
-
-#ifdef CONFIG_VT
-#include <linux/console.h>
-#endif
-
-struct screen_info screen_info;
-
-/* On a PC this would be initialised as a result of the BIOS detecting the
- * mouse. */
-unsigned char aux_device_present = 0xaa;
-
-#ifdef CONFIG_BLK_DEV_RAM
-extern int rd_doload; /* 1 = load ramdisk, 0 = don't load */
-extern int rd_prompt; /* 1 = prompt for ramdisk, 0 = don't prompt */
-extern int rd_image_start; /* starting block # of image */
-#endif
-
-extern int root_mountflags;
-extern char *get_system_type(void);
-extern void platform_setup(void);
-extern void platform_monitor(void);
-extern void platform_reserve(void);
-extern int sh64_cache_init(void);
-extern int sh64_tlb_init(void);
-
-#define RAMDISK_IMAGE_START_MASK 0x07FF
-#define RAMDISK_PROMPT_FLAG 0x8000
-#define RAMDISK_LOAD_FLAG 0x4000
-
-static char command_line[COMMAND_LINE_SIZE] = { 0, };
-unsigned long long memory_start = CONFIG_MEMORY_START;
-unsigned long long memory_end = CONFIG_MEMORY_START + (CONFIG_MEMORY_SIZE_IN_MB * 1024 * 1024);
-
-struct sh_cpuinfo boot_cpu_data;
-
-static inline void parse_mem_cmdline (char ** cmdline_p)
-{
- char c = ' ', *to = command_line, *from = COMMAND_LINE;
- int len = 0;
-
- /* Save unparsed command line copy for /proc/cmdline */
- memcpy(saved_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
- saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
-
- for (;;) {
- /*
- * "mem=XXX[kKmM]" defines a size of memory.
- */
- if (c == ' ' && !memcmp(from, "mem=", 4)) {
- if (to != command_line)
- to--;
- {
- unsigned long mem_size;
-
- mem_size = memparse(from+4, &from);
- memory_end = memory_start + mem_size;
- }
- }
- c = *(from++);
- if (!c)
- break;
- if (COMMAND_LINE_SIZE <= ++len)
- break;
- *(to++) = c;
- }
- *to = '\0';
-
- *cmdline_p = command_line;
-}
-
-static void __init sh64_cpu_type_detect(void)
-{
- extern unsigned long long peek_real_address_q(unsigned long long addr);
- unsigned long long cir;
- /* Do peeks in real mode to avoid having to set up a mapping for the
- WPC registers. On SH5-101 cut2, such a mapping would be exposed to
- an address translation erratum which would make it hard to set up
- correctly. */
- cir = peek_real_address_q(0x0d000008);
-
- if ((cir & 0xffff) == 0x5103) {
- boot_cpu_data.type = CPU_SH5_103;
- } else if (((cir >> 32) & 0xffff) == 0x51e2) {
- /* CPU.VCR aliased at CIR address on SH5-101 */
- boot_cpu_data.type = CPU_SH5_101;
- } else {
- boot_cpu_data.type = CPU_SH_NONE;
- }
-}
-
-void __init setup_arch(char **cmdline_p)
-{
- unsigned long bootmap_size, i;
- unsigned long first_pfn, start_pfn, last_pfn, pages;
-
-#ifdef CONFIG_EARLY_PRINTK
- extern void enable_early_printk(void);
-
- /*
- * Setup Early SCIF console
- */
- enable_early_printk();
-#endif
-
- /*
- * Setup TLB mappings
- */
- sh64_tlb_init();
-
- /*
- * Caches are already initialized by the time we get here, so we just
- * fill in cpu_data info for the caches.
- */
- sh64_cache_init();
-
- platform_setup();
- platform_monitor();
-
- sh64_cpu_type_detect();
-
- ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
-
-#ifdef CONFIG_BLK_DEV_RAM
- rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
- rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
- rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
-#endif
-
- if (!MOUNT_ROOT_RDONLY)
- root_mountflags &= ~MS_RDONLY;
- init_mm.start_code = (unsigned long) _text;
- init_mm.end_code = (unsigned long) _etext;
- init_mm.end_data = (unsigned long) _edata;
- init_mm.brk = (unsigned long) _end;
-
- code_resource.start = __pa(_text);
- code_resource.end = __pa(_etext)-1;
- data_resource.start = __pa(_etext);
- data_resource.end = __pa(_edata)-1;
-
- parse_mem_cmdline(cmdline_p);
-
- /*
- * Find the lowest and highest page frame numbers we have available
- */
- first_pfn = PFN_DOWN(memory_start);
- last_pfn = PFN_DOWN(memory_end);
- pages = last_pfn - first_pfn;
-
- /*
- * Partially used pages are not usable - thus
- * we are rounding upwards:
- */
- start_pfn = PFN_UP(__pa(_end));
-
- /*
- * Find a proper area for the bootmem bitmap. After this
- * bootstrap step all allocations (until the page allocator
- * is intact) must be done via bootmem_alloc().
- */
- bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
- first_pfn,
- last_pfn);
- /*
- * Round it up.
- */
- bootmap_size = PFN_PHYS(PFN_UP(bootmap_size));
-
- /*
- * Register fully available RAM pages with the bootmem allocator.
- */
- free_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn), PFN_PHYS(pages));
-
- /*
- * Reserve all kernel sections + bootmem bitmap + a guard page.
- */
- reserve_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn),
- (PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE) - PFN_PHYS(first_pfn));
-
- /*
- * Reserve platform dependent sections
- */
- platform_reserve();
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (LOADER_TYPE && INITRD_START) {
- if (INITRD_START + INITRD_SIZE <= (PFN_PHYS(last_pfn))) {
- reserve_bootmem_node(NODE_DATA(0), INITRD_START + __MEMORY_START, INITRD_SIZE);
-
- initrd_start =
- (long) INITRD_START ? INITRD_START + PAGE_OFFSET + __MEMORY_START : 0;
-
- initrd_end = initrd_start + INITRD_SIZE;
- } else {
- printk("initrd extends beyond end of memory "
- "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
- (long) INITRD_START + INITRD_SIZE,
- PFN_PHYS(last_pfn));
- initrd_start = 0;
- }
- }
-#endif
-
- /*
- * Claim all RAM, ROM, and I/O resources.
- */
-
- /* Kernel RAM */
- request_resource(&iomem_resource, &code_resource);
- request_resource(&iomem_resource, &data_resource);
-
- /* Other KRAM space */
- for (i = 0; i < STANDARD_KRAM_RESOURCES - 2; i++)
- request_resource(&iomem_resource,
- &platform_parms.kram_res_p[i]);
-
- /* XRAM space */
- for (i = 0; i < STANDARD_XRAM_RESOURCES; i++)
- request_resource(&iomem_resource,
- &platform_parms.xram_res_p[i]);
-
- /* ROM space */
- for (i = 0; i < STANDARD_ROM_RESOURCES; i++)
- request_resource(&iomem_resource,
- &platform_parms.rom_res_p[i]);
-
- /* I/O space */
- for (i = 0; i < STANDARD_IO_RESOURCES; i++)
- request_resource(&ioport_resource,
- &platform_parms.io_res_p[i]);
-
-
-#ifdef CONFIG_VT
-#if defined(CONFIG_VGA_CONSOLE)
- conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-#endif
-
- printk("Hardware FPU: %s\n", fpu_in_use ? "enabled" : "disabled");
-
- paging_init();
-}
-
-void __xchg_called_with_bad_pointer(void)
-{
- printk(KERN_EMERG "xchg() called with bad pointer !\n");
-}
-
-static struct cpu cpu[1];
-
-static int __init topology_init(void)
-{
- return register_cpu(cpu, 0, NULL);
-}
-
-subsys_initcall(topology_init);
-
-/*
- * Get CPU information
- */
-static const char *cpu_name[] = {
- [CPU_SH5_101] = "SH5-101",
- [CPU_SH5_103] = "SH5-103",
- [CPU_SH_NONE] = "Unknown",
-};
-
-const char *get_cpu_subtype(void)
-{
- return cpu_name[boot_cpu_data.type];
-}
-
-#ifdef CONFIG_PROC_FS
-static int show_cpuinfo(struct seq_file *m,void *v)
-{
- unsigned int cpu = smp_processor_id();
-
- if (!cpu)
- seq_printf(m, "machine\t\t: %s\n", get_system_type());
-
- seq_printf(m, "processor\t: %d\n", cpu);
- seq_printf(m, "cpu family\t: SH-5\n");
- seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());
-
- seq_printf(m, "icache size\t: %dK-bytes\n",
- (boot_cpu_data.icache.ways *
- boot_cpu_data.icache.sets *
- boot_cpu_data.icache.linesz) >> 10);
- seq_printf(m, "dcache size\t: %dK-bytes\n",
- (boot_cpu_data.dcache.ways *
- boot_cpu_data.dcache.sets *
- boot_cpu_data.dcache.linesz) >> 10);
- seq_printf(m, "itlb entries\t: %d\n", boot_cpu_data.itlb.entries);
- seq_printf(m, "dtlb entries\t: %d\n", boot_cpu_data.dtlb.entries);
-
-#define PRINT_CLOCK(name, value) \
- seq_printf(m, name " clock\t: %d.%02dMHz\n", \
- ((value) / 1000000), ((value) % 1000000)/10000)
-
- PRINT_CLOCK("cpu", boot_cpu_data.cpu_clock);
- PRINT_CLOCK("bus", boot_cpu_data.bus_clock);
- PRINT_CLOCK("module", boot_cpu_data.module_clock);
-
- seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
- (loops_per_jiffy*HZ+2500)/500000,
- ((loops_per_jiffy*HZ+2500)/5000) % 100);
-
- return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
- return (void*)(*pos == 0);
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
- return NULL;
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-struct seq_operations cpuinfo_op = {
- .start = c_start,
- .next = c_next,
- .stop = c_stop,
- .show = show_cpuinfo,
-};
-#endif /* CONFIG_PROC_FS */
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/sh_ksyms.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <linux/config.h>
-#include <linux/rwsem.h>
-#include <linux/module.h>
-#include <linux/smp.h>
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <linux/sched.h>
-#include <linux/in6.h>
-#include <linux/interrupt.h>
-#include <linux/smp_lock.h>
-
-#include <asm/semaphore.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/checksum.h>
-#include <asm/io.h>
-#include <asm/hardirq.h>
-#include <asm/delay.h>
-#include <asm/irq.h>
-
-extern void dump_thread(struct pt_regs *, struct user *);
-extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
-
-#if 0
-/* Not yet - there's no declaration of drive_info anywhere. */
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE)
-extern struct drive_info_struct drive_info;
-EXPORT_SYMBOL(drive_info);
-#endif
-#endif
-
-/* platform dependent support */
-EXPORT_SYMBOL(dump_thread);
-EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(iounmap);
-EXPORT_SYMBOL(enable_irq);
-EXPORT_SYMBOL(disable_irq);
-EXPORT_SYMBOL(kernel_thread);
-
-/* Networking helper routines. */
-EXPORT_SYMBOL(csum_partial_copy);
-
-EXPORT_SYMBOL(strtok);
-EXPORT_SYMBOL(strpbrk);
-EXPORT_SYMBOL(strstr);
-
-#ifdef CONFIG_VT
-EXPORT_SYMBOL(screen_info);
-#endif
-
-EXPORT_SYMBOL_NOVERS(__down);
-EXPORT_SYMBOL_NOVERS(__down_trylock);
-EXPORT_SYMBOL_NOVERS(__up);
-EXPORT_SYMBOL_NOVERS(__put_user_asm_l);
-EXPORT_SYMBOL_NOVERS(__get_user_asm_l);
-EXPORT_SYMBOL_NOVERS(memcmp);
-EXPORT_SYMBOL_NOVERS(memcpy);
-EXPORT_SYMBOL_NOVERS(memset);
-EXPORT_SYMBOL_NOVERS(memscan);
-EXPORT_SYMBOL_NOVERS(strchr);
-EXPORT_SYMBOL_NOVERS(strlen);
-
-EXPORT_SYMBOL(flush_dcache_page);
-
-/* Ugh. These come in from libgcc.a at link time. */
-
-extern void __sdivsi3(void);
-extern void __muldi3(void);
-extern void __udivsi3(void);
-EXPORT_SYMBOL_NOVERS(__sdivsi3);
-EXPORT_SYMBOL_NOVERS(__muldi3);
-EXPORT_SYMBOL_NOVERS(__udivsi3);
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/signal.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- * Started from sh version.
- *
- */
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/personality.h>
-#include <linux/suspend.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/personality.h>
-#include <asm/ucontext.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-
-#define REG_RET 9
-#define REG_ARG1 2
-#define REG_ARG2 3
-#define REG_ARG3 4
-#define REG_SP 15
-#define REG_PR 18
-#define REF_REG_RET regs->regs[REG_RET]
-#define REF_REG_SP regs->regs[REG_SP]
-#define DEREF_REG_PR regs->regs[REG_PR]
-
-#define DEBUG_SIG 0
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-
-asmlinkage int
-sys_sigsuspend(old_sigset_t mask,
- unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs * regs)
-{
- sigset_t saveset;
-
- mask &= _BLOCKABLE;
- spin_lock_irq(¤t->sighand->siglock);
- saveset = current->blocked;
- siginitset(¤t->blocked, mask);
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- REF_REG_RET = -EINTR;
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- regs->pc += 4; /* because sys_sigreturn decrements the pc */
- if (do_signal(regs, &saveset)) {
- /* pc now points at signal handler. Need to decrement
- it because entry.S will increment it. */
- regs->pc -= 4;
- return -EINTR;
- }
- }
-}
-
-asmlinkage int
-sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
- unsigned long r4, unsigned long r5, unsigned long r6,
- unsigned long r7,
- struct pt_regs * regs)
-{
- sigset_t saveset, newset;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
-
- if (copy_from_user(&newset, unewset, sizeof(newset)))
- return -EFAULT;
- sigdelsetmask(&newset, ~_BLOCKABLE);
- spin_lock_irq(¤t->sighand->siglock);
- saveset = current->blocked;
- current->blocked = newset;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- REF_REG_RET = -EINTR;
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- regs->pc += 4; /* because sys_sigreturn decrements the pc */
- if (do_signal(regs, &saveset)) {
- /* pc now points at signal handler. Need to decrement
- it because entry.S will increment it. */
- regs->pc -= 4;
- return -EINTR;
- }
- }
-}
-
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
- struct old_sigaction __user *oact)
-{
- struct k_sigaction new_ka, old_ka;
- int ret;
-
- if (act) {
- old_sigset_t mask;
- if (verify_area(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
- return -EFAULT;
- __get_user(new_ka.sa.sa_flags, &act->sa_flags);
- __get_user(mask, &act->sa_mask);
- siginitset(&new_ka.sa.sa_mask, mask);
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
- return -EFAULT;
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
- }
-
- return ret;
-}
-
-asmlinkage int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
- unsigned long r4, unsigned long r5, unsigned long r6,
- unsigned long r7,
- struct pt_regs * regs)
-{
- return do_sigaltstack(uss, uoss, REF_REG_SP);
-}
-
-
-/*
- * Do a signal return; undo the signal stack.
- */
-
-struct sigframe
-{
- struct sigcontext sc;
- unsigned long extramask[_NSIG_WORDS-1];
- long long retcode[2];
-};
-
-struct rt_sigframe
-{
- struct siginfo __user *pinfo;
- void *puc;
- struct siginfo info;
- struct ucontext uc;
- long long retcode[2];
-};
-
-#ifndef CONFIG_NOFPU_SUPPORT
-static inline int
-restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{
- int err = 0;
- int fpvalid;
-
- err |= __get_user (fpvalid, &sc->sc_fpvalid);
- current->used_math = fpvalid;
- if (! fpvalid)
- return err;
-
- if (current == last_task_used_math) {
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-
- err |= __copy_from_user(¤t->thread.fpu.hard, &sc->sc_fpregs[0],
- (sizeof(long long) * 32) + (sizeof(int) * 1));
-
- return err;
-}
-
-static inline int
-setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{
- int err = 0;
- int fpvalid;
-
- fpvalid = current->used_math;
- err |= __put_user(fpvalid, &sc->sc_fpvalid);
- if (! fpvalid)
- return err;
-
- if (current == last_task_used_math) {
- grab_fpu();
- fpsave(¤t->thread.fpu.hard);
- release_fpu();
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-
- err |= __copy_to_user(&sc->sc_fpregs[0], ¤t->thread.fpu.hard,
- (sizeof(long long) * 32) + (sizeof(int) * 1));
- current->used_math = 0;
-
- return err;
-}
-#else
-static inline int
-restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{}
-static inline int
-setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{}
-#endif
-
-static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, long long *r2_p)
-{
- unsigned int err = 0;
- unsigned long long current_sr, new_sr;
-#define SR_MASK 0xffff8cfd
-
-#define COPY(x) err |= __get_user(regs->x, &sc->sc_##x)
-
- COPY(regs[0]); COPY(regs[1]); COPY(regs[2]); COPY(regs[3]);
- COPY(regs[4]); COPY(regs[5]); COPY(regs[6]); COPY(regs[7]);
- COPY(regs[8]); COPY(regs[9]); COPY(regs[10]); COPY(regs[11]);
- COPY(regs[12]); COPY(regs[13]); COPY(regs[14]); COPY(regs[15]);
- COPY(regs[16]); COPY(regs[17]); COPY(regs[18]); COPY(regs[19]);
- COPY(regs[20]); COPY(regs[21]); COPY(regs[22]); COPY(regs[23]);
- COPY(regs[24]); COPY(regs[25]); COPY(regs[26]); COPY(regs[27]);
- COPY(regs[28]); COPY(regs[29]); COPY(regs[30]); COPY(regs[31]);
- COPY(regs[32]); COPY(regs[33]); COPY(regs[34]); COPY(regs[35]);
- COPY(regs[36]); COPY(regs[37]); COPY(regs[38]); COPY(regs[39]);
- COPY(regs[40]); COPY(regs[41]); COPY(regs[42]); COPY(regs[43]);
- COPY(regs[44]); COPY(regs[45]); COPY(regs[46]); COPY(regs[47]);
- COPY(regs[48]); COPY(regs[49]); COPY(regs[50]); COPY(regs[51]);
- COPY(regs[52]); COPY(regs[53]); COPY(regs[54]); COPY(regs[55]);
- COPY(regs[56]); COPY(regs[57]); COPY(regs[58]); COPY(regs[59]);
- COPY(regs[60]); COPY(regs[61]); COPY(regs[62]);
- COPY(tregs[0]); COPY(tregs[1]); COPY(tregs[2]); COPY(tregs[3]);
- COPY(tregs[4]); COPY(tregs[5]); COPY(tregs[6]); COPY(tregs[7]);
-
- /* Prevent the signal handler manipulating SR in a way that can
- crash the kernel. i.e. only allow S, Q, M, PR, SZ, FR to be
- modified */
- current_sr = regs->sr;
- err |= __get_user(new_sr, &sc->sc_sr);
- regs->sr &= SR_MASK;
- regs->sr |= (new_sr & ~SR_MASK);
-
- COPY(pc);
-
-#undef COPY
-
- /* Must do this last in case it sets regs->sr.fd (i.e. after rest of sr
- * has been restored above.) */
- err |= restore_sigcontext_fpu(regs, sc);
-
- regs->syscall_nr = -1; /* disable syscall checks */
- err |= __get_user(*r2_p, &sc->sc_regs[REG_RET]);
- return err;
-}
-
-asmlinkage int sys_sigreturn(unsigned long r2, unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs * regs)
-{
- struct sigframe __user *frame = (struct sigframe __user *) (long) REF_REG_SP;
- sigset_t set;
- long long ret;
-
- if (verify_area(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
-
- if (__get_user(set.sig[0], &frame->sc.oldmask)
- || (_NSIG_WORDS > 1
- && __copy_from_user(&set.sig[1], &frame->extramask,
- sizeof(frame->extramask))))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
-
- spin_lock_irq(¤t->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- if (restore_sigcontext(regs, &frame->sc, &ret))
- goto badframe;
- regs->pc -= 4;
-
- return (int) ret;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs * regs)
-{
- struct rt_sigframe __user *frame = (struct rt_sigframe __user *) (long) REF_REG_SP;
- sigset_t set;
- stack_t __user st;
- long long ret;
-
- if (verify_area(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
-
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(¤t->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ret))
- goto badframe;
- regs->pc -= 4;
-
- if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
- goto badframe;
- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
- do_sigaltstack(&st, NULL, REF_REG_SP);
-
- return (int) ret;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-/*
- * Set up a signal frame.
- */
-
-static int
-setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
- unsigned long mask)
-{
- int err = 0;
-
- /* Do this first, otherwise is this sets sr->fd, that value isn't preserved. */
- err |= setup_sigcontext_fpu(regs, sc);
-
-#define COPY(x) err |= __put_user(regs->x, &sc->sc_##x)
-
- COPY(regs[0]); COPY(regs[1]); COPY(regs[2]); COPY(regs[3]);
- COPY(regs[4]); COPY(regs[5]); COPY(regs[6]); COPY(regs[7]);
- COPY(regs[8]); COPY(regs[9]); COPY(regs[10]); COPY(regs[11]);
- COPY(regs[12]); COPY(regs[13]); COPY(regs[14]); COPY(regs[15]);
- COPY(regs[16]); COPY(regs[17]); COPY(regs[18]); COPY(regs[19]);
- COPY(regs[20]); COPY(regs[21]); COPY(regs[22]); COPY(regs[23]);
- COPY(regs[24]); COPY(regs[25]); COPY(regs[26]); COPY(regs[27]);
- COPY(regs[28]); COPY(regs[29]); COPY(regs[30]); COPY(regs[31]);
- COPY(regs[32]); COPY(regs[33]); COPY(regs[34]); COPY(regs[35]);
- COPY(regs[36]); COPY(regs[37]); COPY(regs[38]); COPY(regs[39]);
- COPY(regs[40]); COPY(regs[41]); COPY(regs[42]); COPY(regs[43]);
- COPY(regs[44]); COPY(regs[45]); COPY(regs[46]); COPY(regs[47]);
- COPY(regs[48]); COPY(regs[49]); COPY(regs[50]); COPY(regs[51]);
- COPY(regs[52]); COPY(regs[53]); COPY(regs[54]); COPY(regs[55]);
- COPY(regs[56]); COPY(regs[57]); COPY(regs[58]); COPY(regs[59]);
- COPY(regs[60]); COPY(regs[61]); COPY(regs[62]);
- COPY(tregs[0]); COPY(tregs[1]); COPY(tregs[2]); COPY(tregs[3]);
- COPY(tregs[4]); COPY(tregs[5]); COPY(tregs[6]); COPY(tregs[7]);
- COPY(sr); COPY(pc);
-
-#undef COPY
-
- err |= __put_user(mask, &sc->oldmask);
-
- return err;
-}
-
-/*
- * Determine which stack to use..
- */
-static inline void __user *
-get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
-{
- if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! on_sig_stack(sp))
- sp = current->sas_ss_sp + current->sas_ss_size;
-
- return (void __user *)((sp - frame_size) & -8ul);
-}
-
-void sa_default_restorer(void); /* See comments below */
-void sa_default_rt_restorer(void); /* See comments below */
-
-static void setup_frame(int sig, struct k_sigaction *ka,
- sigset_t *set, struct pt_regs *regs)
-{
- struct sigframe __user *frame;
- int err = 0;
- int signal;
-
- frame = get_sigframe(ka, regs->regs[REG_SP], sizeof(*frame));
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
-
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
- err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
-
- /* Give up earlier as i386, in case */
- if (err)
- goto give_sigsegv;
-
- if (_NSIG_WORDS > 1) {
- err |= __copy_to_user(frame->extramask, &set->sig[1],
- sizeof(frame->extramask)); }
-
- /* Give up earlier as i386, in case */
- if (err)
- goto give_sigsegv;
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- if (ka->sa.sa_flags & SA_RESTORER) {
- DEREF_REG_PR = (unsigned long) ka->sa.sa_restorer | 0x1;
-
- /*
- * On SH5 all edited pointers are subject to NEFF
- */
- DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
- (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
- } else {
- /*
- * Different approach on SH5.
- * . Endianness independent asm code gets placed in entry.S .
- * This is limited to four ASM instructions corresponding
- * to two long longs in size.
- * . err checking is done on the else branch only
- * . flush_icache_range() is called upon __put_user() only
- * . all edited pointers are subject to NEFF
- * . being code, linker turns ShMedia bit on, always
- * dereference index -1.
- */
- DEREF_REG_PR = (unsigned long) frame->retcode | 0x01;
- DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
- (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
-
- if (__copy_to_user(frame->retcode,
- (unsigned long long)sa_default_restorer & (~1), 16) != 0)
- goto give_sigsegv;
-
- /* Cohere the trampoline with the I-cache. */
- flush_cache_sigtramp(DEREF_REG_PR-1, DEREF_REG_PR-1+16);
- }
-
- /*
- * Set up registers for signal handler.
- * All edited pointers are subject to NEFF.
- */
- regs->regs[REG_SP] = (unsigned long) frame;
- regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ?
- (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP];
- regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
-
- /* FIXME:
- The glibc profiling support for SH-5 needs to be passed a sigcontext
- so it can retrieve the PC. At some point during 2003 the glibc
- support was changed to receive the sigcontext through the 2nd
- argument, but there are still versions of libc.so in use that use
- the 3rd argument. Until libc.so is stabilised, pass the sigcontext
- through both 2nd and 3rd arguments.
- */
-
- regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->sc;
- regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->sc;
-
- regs->pc = (unsigned long) ka->sa.sa_handler;
- regs->pc = (regs->pc & NEFF_SIGN) ? (regs->pc | NEFF_MASK) : regs->pc;
-
- set_fs(USER_DS);
-
-#if DEBUG_SIG
- /* Broken %016Lx */
- printk("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
- signal,
- current->comm, current->pid, frame,
- regs->pc >> 32, regs->pc & 0xffffffff,
- DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
-#endif
-
- return;
-
-give_sigsegv:
- if (sig == SIGSEGV)
- ka->sa.sa_handler = SIG_DFL;
- force_sig(SIGSEGV, current);
-}
-
-static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *set, struct pt_regs *regs)
-{
- struct rt_sigframe __user *frame;
- int err = 0;
- int signal;
-
- frame = get_sigframe(ka, regs->regs[REG_SP], sizeof(*frame));
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
-
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
- err |= __put_user(&frame->info, &frame->pinfo);
- err |= __put_user(&frame->uc, &frame->puc);
- err |= copy_siginfo_to_user(&frame->info, info);
-
- /* Give up earlier as i386, in case */
- if (err)
- goto give_sigsegv;
-
- /* Create the ucontext. */
- err |= __put_user(0, &frame->uc.uc_flags);
- err |= __put_user(0, &frame->uc.uc_link);
- err |= __put_user((void *)current->sas_ss_sp,
- &frame->uc.uc_stack.ss_sp);
- err |= __put_user(sas_ss_flags(regs->regs[REG_SP]),
- &frame->uc.uc_stack.ss_flags);
- err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
- err |= setup_sigcontext(&frame->uc.uc_mcontext,
- regs, set->sig[0]);
- err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
- /* Give up earlier as i386, in case */
- if (err)
- goto give_sigsegv;
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- if (ka->sa.sa_flags & SA_RESTORER) {
- DEREF_REG_PR = (unsigned long) ka->sa.sa_restorer | 0x1;
-
- /*
- * On SH5 all edited pointers are subject to NEFF
- */
- DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
- (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
- } else {
- /*
- * Different approach on SH5.
- * . Endianness independent asm code gets placed in entry.S .
- * This is limited to four ASM instructions corresponding
- * to two long longs in size.
- * . err checking is done on the else branch only
- * . flush_icache_range() is called upon __put_user() only
- * . all edited pointers are subject to NEFF
- * . being code, linker turns ShMedia bit on, always
- * dereference index -1.
- */
-
- DEREF_REG_PR = (unsigned long) frame->retcode | 0x01;
- DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
- (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
-
- if (__copy_to_user(frame->retcode,
- (unsigned long long)sa_default_rt_restorer & (~1), 16) != 0)
- goto give_sigsegv;
-
- flush_icache_range(DEREF_REG_PR-1, DEREF_REG_PR-1+15);
- }
-
- /*
- * Set up registers for signal handler.
- * All edited pointers are subject to NEFF.
- */
- regs->regs[REG_SP] = (unsigned long) frame;
- regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ?
- (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP];
- regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
- regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->info;
- regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->uc.uc_mcontext;
- regs->pc = (unsigned long) ka->sa.sa_handler;
- regs->pc = (regs->pc & NEFF_SIGN) ? (regs->pc | NEFF_MASK) : regs->pc;
-
- set_fs(USER_DS);
-
-#if DEBUG_SIG
- /* Broken %016Lx */
- printk("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
- signal,
- current->comm, current->pid, frame,
- regs->pc >> 32, regs->pc & 0xffffffff,
- DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
-#endif
-
- return;
-
-give_sigsegv:
- if (sig == SIGSEGV)
- ka->sa.sa_handler = SIG_DFL;
- force_sig(SIGSEGV, current);
-}
-
-/*
- * OK, we're invoking a handler
- */
-
-static void
-handle_signal(unsigned long sig, siginfo_t *info, sigset_t *oldset,
- struct pt_regs * regs)
-{
- struct k_sigaction *ka = ¤t->sighand->action[sig-1];
-
- /* Are we from a system call? */
- if (regs->syscall_nr >= 0) {
- /* If so, check system call restarting.. */
- switch (regs->regs[REG_RET]) {
- case -ERESTARTNOHAND:
- regs->regs[REG_RET] = -EINTR;
- break;
-
- case -ERESTARTSYS:
- if (!(ka->sa.sa_flags & SA_RESTART)) {
- regs->regs[REG_RET] = -EINTR;
- break;
- }
- /* fallthrough */
- case -ERESTARTNOINTR:
- /* Decode syscall # */
- regs->regs[REG_RET] = regs->syscall_nr;
- regs->pc -= 4;
- }
- }
-
- /* Set up the stack frame */
- if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame(sig, ka, info, oldset, regs);
- else
- setup_frame(sig, ka, oldset, regs);
-
- if (ka->sa.sa_flags & SA_ONESHOT)
- ka->sa.sa_handler = SIG_DFL;
-
- if (!(ka->sa.sa_flags & SA_NODEFER)) {
- spin_lock_irq(¤t->sighand->siglock);
- sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask);
- sigaddset(¤t->blocked,sig);
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
- }
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- *
- * Note that we go through the signals twice: once to check the signals that
- * the kernel can handle, and then we build all the user-level signal handling
- * stack-frames in one go after that.
- */
-int do_signal(struct pt_regs *regs, sigset_t *oldset)
-{
- siginfo_t info;
- int signr;
-
- /*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so.
- */
- if (!user_mode(regs))
- return 1;
-
- if (current->flags & PF_FREEZE) {
- refrigerator(0);
- goto no_signal;
- }
-
- if (!oldset)
- oldset = ¤t->blocked;
-
- signr = get_signal_to_deliver(&info, regs, 0);
-
- if (signr > 0) {
- /* Whee! Actually deliver the signal. */
- handle_signal(signr, &info, oldset, regs);
- return 1;
- }
-
-no_signal:
- /* Did we come from a system call? */
- if (regs->syscall_nr >= 0) {
- /* Restart the system call - no handlers present */
- if (regs->regs[REG_RET] == -ERESTARTNOHAND ||
- regs->regs[REG_RET] == -ERESTARTSYS ||
- regs->regs[REG_RET] == -ERESTARTNOINTR) {
- /* Decode Syscall # */
- regs->regs[REG_RET] = regs->syscall_nr;
- regs->pc -= 4;
- }
- }
- return 0;
-}
+++ /dev/null
-/*
- * arch/sh64/kernel/switchto.S
- *
- * sh64 context switch
- *
- * Copyright (C) 2004 Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
-*/
-
- .section .text..SHmedia32,"ax"
- .little
-
- .balign 32
-
- .type sh64_switch_to,@function
- .global sh64_switch_to
- .global __sh64_switch_to_end
-sh64_switch_to:
-
-/* Incoming args
- r2 - prev
- r3 - &prev->thread
- r4 - next
- r5 - &next->thread
-
- Outgoing results
- r2 - last (=prev)
-
- Want to create a full (struct pt_regs) on the stack to allow backtracing
- functions to work. However, we only need to populate the callee-save
- register slots in this structure; since we're a function our ancestors must
- have themselves preserved all caller saved state in the stack. This saves
- some wasted effort since we won't need to look at the values.
-
- In particular, all caller-save registers are immediately available for
- scratch use.
-
-*/
-
-#define FRAME_SIZE (76*8 + 8)
-
- movi FRAME_SIZE, r0
- sub.l r15, r0, r15
- ! Do normal-style register save to support backtrace
-
- st.l r15, 0, r18 ! save link reg
- st.l r15, 4, r14 ! save fp
- add.l r15, r63, r14 ! setup frame pointer
-
- ! hopefully this looks normal to the backtrace now.
-
- addi.l r15, 8, r1 ! base of pt_regs
- addi.l r1, 24, r0 ! base of pt_regs.regs
- addi.l r0, (63*8), r8 ! base of pt_regs.trregs
-
- /* Note : to be fixed?
- struct pt_regs is really designed for holding the state on entry
- to an exception, i.e. pc,sr,regs etc. However, for the context
- switch state, some of this is not required. But the unwinder takes
- struct pt_regs * as an arg so we have to build this structure
- to allow unwinding switched tasks in show_state() */
-
- st.q r0, ( 9*8), r9
- st.q r0, (10*8), r10
- st.q r0, (11*8), r11
- st.q r0, (12*8), r12
- st.q r0, (13*8), r13
- st.q r0, (14*8), r14 ! for unwind, want to look as though we took a trap at
- ! the point where the process is left in suspended animation, i.e. current
- ! fp here, not the saved one.
- st.q r0, (16*8), r16
-
- st.q r0, (24*8), r24
- st.q r0, (25*8), r25
- st.q r0, (26*8), r26
- st.q r0, (27*8), r27
- st.q r0, (28*8), r28
- st.q r0, (29*8), r29
- st.q r0, (30*8), r30
- st.q r0, (31*8), r31
- st.q r0, (32*8), r32
- st.q r0, (33*8), r33
- st.q r0, (34*8), r34
- st.q r0, (35*8), r35
-
- st.q r0, (44*8), r44
- st.q r0, (45*8), r45
- st.q r0, (46*8), r46
- st.q r0, (47*8), r47
- st.q r0, (48*8), r48
- st.q r0, (49*8), r49
- st.q r0, (50*8), r50
- st.q r0, (51*8), r51
- st.q r0, (52*8), r52
- st.q r0, (53*8), r53
- st.q r0, (54*8), r54
- st.q r0, (55*8), r55
- st.q r0, (56*8), r56
- st.q r0, (57*8), r57
- st.q r0, (58*8), r58
- st.q r0, (59*8), r59
-
- ! do this early as pta->gettr has no pipeline forwarding (=> 5 cycle latency)
- ! Use a local label to avoid creating a symbol that will confuse the !
- ! backtrace
- pta .Lsave_pc, tr0
-
- gettr tr5, r45
- gettr tr6, r46
- gettr tr7, r47
- st.q r8, (5*8), r45
- st.q r8, (6*8), r46
- st.q r8, (7*8), r47
-
- ! Now switch context
- gettr tr0, r9
- st.l r3, 0, r15 ! prev->thread.sp
- st.l r3, 8, r1 ! prev->thread.kregs
- st.l r3, 4, r9 ! prev->thread.pc
- st.q r1, 0, r9 ! save prev->thread.pc into pt_regs->pc
-
- ! Load PC for next task (init value or save_pc later)
- ld.l r5, 4, r18 ! next->thread.pc
- ! Switch stacks
- ld.l r5, 0, r15 ! next->thread.sp
- ptabs r18, tr0
-
- ! Update current
- ld.l r4, 4, r9 ! next->thread_info (2nd element of next task_struct)
- putcon r9, kcr0 ! current = next->thread_info
-
- ! go to save_pc for a reschedule, or the initial thread.pc for a new process
- blink tr0, r63
-
- ! Restore (when we come back to a previously saved task)
-.Lsave_pc:
- addi.l r15, 32, r0 ! r0 = next's regs
- addi.l r0, (63*8), r8 ! r8 = next's tr_regs
-
- ld.q r8, (5*8), r45
- ld.q r8, (6*8), r46
- ld.q r8, (7*8), r47
- ptabs r45, tr5
- ptabs r46, tr6
- ptabs r47, tr7
-
- ld.q r0, ( 9*8), r9
- ld.q r0, (10*8), r10
- ld.q r0, (11*8), r11
- ld.q r0, (12*8), r12
- ld.q r0, (13*8), r13
- ld.q r0, (14*8), r14
- ld.q r0, (16*8), r16
-
- ld.q r0, (24*8), r24
- ld.q r0, (25*8), r25
- ld.q r0, (26*8), r26
- ld.q r0, (27*8), r27
- ld.q r0, (28*8), r28
- ld.q r0, (29*8), r29
- ld.q r0, (30*8), r30
- ld.q r0, (31*8), r31
- ld.q r0, (32*8), r32
- ld.q r0, (33*8), r33
- ld.q r0, (34*8), r34
- ld.q r0, (35*8), r35
-
- ld.q r0, (44*8), r44
- ld.q r0, (45*8), r45
- ld.q r0, (46*8), r46
- ld.q r0, (47*8), r47
- ld.q r0, (48*8), r48
- ld.q r0, (49*8), r49
- ld.q r0, (50*8), r50
- ld.q r0, (51*8), r51
- ld.q r0, (52*8), r52
- ld.q r0, (53*8), r53
- ld.q r0, (54*8), r54
- ld.q r0, (55*8), r55
- ld.q r0, (56*8), r56
- ld.q r0, (57*8), r57
- ld.q r0, (58*8), r58
- ld.q r0, (59*8), r59
-
- ! epilogue
- ld.l r15, 0, r18
- ld.l r15, 4, r14
- ori r4, 0, r2 ! last = prev
- ptabs r18, tr0
- movi FRAME_SIZE, r0
- add r15, r0, r15
- blink tr0, r63
-__sh64_switch_to_end:
-.LFE1:
- .size sh64_switch_to,.LFE1-sh64_switch_to
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/sys_sh64.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/SH5
- * platform.
- *
- * Mostly taken from i386 version.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/mman.h>
-#include <linux/file.h>
-#include <linux/utsname.h>
-#include <linux/syscalls.h>
-#include <asm/uaccess.h>
-#include <asm/ipc.h>
-#include <asm/ptrace.h>
-
-#define REG_3 3
-
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way Unix traditionally does this, though.
- */
-#ifdef NEW_PIPE_IMPLEMENTATION
-asmlinkage int sys_pipe(unsigned long * fildes,
- unsigned long dummy_r3,
- unsigned long dummy_r4,
- unsigned long dummy_r5,
- unsigned long dummy_r6,
- unsigned long dummy_r7,
- struct pt_regs * regs) /* r8 = pt_regs forced by entry.S */
-{
- int fd[2];
- int ret;
-
- ret = do_pipe(fd);
- if (ret == 0)
- /*
- ***********************************************************************
- * To avoid the copy_to_user we prefer to break the ABIs convention, *
- * packing the valid pair of file IDs into a single register (r3); *
- * while r2 is the return code as defined by the sh5-ABIs. *
- * BE CAREFUL: pipe stub, into glibc, must be aware of this solution *
- ***********************************************************************
-
-#ifdef __LITTLE_ENDIAN__
- regs->regs[REG_3] = (((unsigned long long) fd[1]) << 32) | ((unsigned long long) fd[0]);
-#else
- regs->regs[REG_3] = (((unsigned long long) fd[0]) << 32) | ((unsigned long long) fd[1]);
-#endif
-
- */
- /* although not very clever this is endianess independent */
- regs->regs[REG_3] = (unsigned long long) *((unsigned long long *) fd);
-
- return ret;
-}
-
-#else
-asmlinkage int sys_pipe(unsigned long * fildes)
-{
- int fd[2];
- int error;
-
- error = do_pipe(fd);
- if (!error) {
- if (copy_to_user(fildes, fd, 2*sizeof(int)))
- error = -EFAULT;
- }
- return error;
-}
-
-#endif
-
-/*
- * To avoid cache alias, we map the shard page with same color.
- */
-#define COLOUR_ALIGN(addr) (((addr)+SHMLBA-1)&~(SHMLBA-1))
-
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
- unsigned long len, unsigned long pgoff, unsigned long flags)
-{
- struct vm_area_struct *vma;
-
- if (flags & MAP_FIXED) {
- /* We do not accept a shared mapping if it would violate
- * cache aliasing constraints.
- */
- if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1)))
- return -EINVAL;
- return addr;
- }
-
- if (len > TASK_SIZE)
- return -ENOMEM;
- if (!addr)
- addr = TASK_UNMAPPED_BASE;
-
- if (flags & MAP_PRIVATE)
- addr = PAGE_ALIGN(addr);
- else
- addr = COLOUR_ALIGN(addr);
-
- for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
- /* At this point: (!vma || addr < vma->vm_end). */
- if (TASK_SIZE - len < addr)
- return -ENOMEM;
- if (!vma || addr + len <= vma->vm_start)
- return addr;
- addr = vma->vm_end;
- if (!(flags & MAP_PRIVATE))
- addr = COLOUR_ALIGN(addr);
- }
-}
-
-/* common code for old and new mmaps */
-static inline long do_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- int error = -EBADF;
- struct file * file = NULL;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- down_write(¤t->mm->mmap_sem);
- error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(¤t->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return error;
-}
-
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
-asmlinkage int old_mmap(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- int fd, unsigned long off)
-{
- if (off & ~PAGE_MASK)
- return -EINVAL;
- return do_mmap2(addr, len, prot, flags, fd, off>>PAGE_SHIFT);
-}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
- int third, void __user *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- if (call <= SEMCTL)
- switch (call) {
- case SEMOP:
- return sys_semtimedop(first, (struct sembuf __user *)ptr,
- second, NULL);
- case SEMTIMEDOP:
- return sys_semtimedop(first, (struct sembuf __user *)ptr,
- second,
- (const struct timespec __user *)fifth);
- case SEMGET:
- return sys_semget (first, second, third);
- case SEMCTL: {
- union semun fourth;
- if (!ptr)
- return -EINVAL;
- if (get_user(fourth.__pad, (void * __user *) ptr))
- return -EFAULT;
- return sys_semctl (first, second, third, fourth);
- }
- default:
- return -EINVAL;
- }
-
- if (call <= MSGCTL)
- switch (call) {
- case MSGSND:
- return sys_msgsnd (first, (struct msgbuf __user *) ptr,
- second, third);
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
- if (!ptr)
- return -EINVAL;
-
- if (copy_from_user(&tmp,
- (struct ipc_kludge __user *) ptr,
- sizeof (tmp)))
- return -EFAULT;
- return sys_msgrcv (first, tmp.msgp, second,
- tmp.msgtyp, third);
- }
- default:
- return sys_msgrcv (first,
- (struct msgbuf __user *) ptr,
- second, fifth, third);
- }
- case MSGGET:
- return sys_msgget ((key_t) first, second);
- case MSGCTL:
- return sys_msgctl (first, second,
- (struct msqid_ds __user *) ptr);
- default:
- return -EINVAL;
- }
- if (call <= SHMCTL)
- switch (call) {
- case SHMAT:
- switch (version) {
- default: {
- ulong raddr;
- ret = do_shmat (first, (char __user *) ptr,
- second, &raddr);
- if (ret)
- return ret;
- return put_user (raddr, (ulong __user *) third);
- }
- case 1: /* iBCS2 emulator entry point */
- if (!segment_eq(get_fs(), get_ds()))
- return -EINVAL;
- return do_shmat (first, (char __user *) ptr,
- second, (ulong *) third);
- }
- case SHMDT:
- return sys_shmdt ((char __user *)ptr);
- case SHMGET:
- return sys_shmget (first, second, third);
- case SHMCTL:
- return sys_shmctl (first, second,
- (struct shmid_ds __user *) ptr);
- default:
- return -EINVAL;
- }
-
- return -EINVAL;
-}
-
-asmlinkage int sys_uname(struct old_utsname * name)
-{
- int err;
- if (!name)
- return -EFAULT;
- down_read(&uts_sem);
- err=copy_to_user(name, &system_utsname, sizeof (*name));
- up_read(&uts_sem);
- return err?-EFAULT:0;
-}
-
+++ /dev/null
-/*
- * arch/sh64/kernel/syscalls.S
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2004 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/sys.h>
-
- .section .data, "aw"
- .balign 32
-
-/*
- * System calls jump table
- */
- .globl sys_call_table
-sys_call_table:
- .long sys_ni_syscall /* 0 - old "setup()" system call */
- .long sys_exit
- .long sys_fork
- .long sys_read
- .long sys_write
- .long sys_open /* 5 */
- .long sys_close
- .long sys_waitpid
- .long sys_creat
- .long sys_link
- .long sys_unlink /* 10 */
- .long sys_execve
- .long sys_chdir
- .long sys_time
- .long sys_mknod
- .long sys_chmod /* 15 */
- .long sys_lchown16
- .long sys_ni_syscall /* old break syscall holder */
- .long sys_stat
- .long sys_lseek
- .long sys_getpid /* 20 */
- .long sys_mount
- .long sys_oldumount
- .long sys_setuid16
- .long sys_getuid16
- .long sys_stime /* 25 */
- .long sys_ptrace
- .long sys_alarm
- .long sys_fstat
- .long sys_pause
- .long sys_utime /* 30 */
- .long sys_ni_syscall /* old stty syscall holder */
- .long sys_ni_syscall /* old gtty syscall holder */
- .long sys_access
- .long sys_nice
- .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */
- .long sys_sync
- .long sys_kill
- .long sys_rename
- .long sys_mkdir
- .long sys_rmdir /* 40 */
- .long sys_dup
- .long sys_pipe
- .long sys_times
- .long sys_ni_syscall /* old prof syscall holder */
- .long sys_brk /* 45 */
- .long sys_setgid16
- .long sys_getgid16
- .long sys_signal
- .long sys_geteuid16
- .long sys_getegid16 /* 50 */
- .long sys_acct
- .long sys_umount /* recycled never used phys( */
- .long sys_ni_syscall /* old lock syscall holder */
- .long sys_ioctl
- .long sys_fcntl /* 55 */
- .long sys_ni_syscall /* old mpx syscall holder */
- .long sys_setpgid
- .long sys_ni_syscall /* old ulimit syscall holder */
- .long sys_ni_syscall /* sys_olduname */
- .long sys_umask /* 60 */
- .long sys_chroot
- .long sys_ustat
- .long sys_dup2
- .long sys_getppid
- .long sys_getpgrp /* 65 */
- .long sys_setsid
- .long sys_sigaction
- .long sys_sgetmask
- .long sys_ssetmask
- .long sys_setreuid16 /* 70 */
- .long sys_setregid16
- .long sys_sigsuspend
- .long sys_sigpending
- .long sys_sethostname
- .long sys_setrlimit /* 75 */
- .long sys_old_getrlimit
- .long sys_getrusage
- .long sys_gettimeofday
- .long sys_settimeofday
- .long sys_getgroups16 /* 80 */
- .long sys_setgroups16
- .long sys_ni_syscall /* sys_oldselect */
- .long sys_symlink
- .long sys_lstat
- .long sys_readlink /* 85 */
- .long sys_uselib
- .long sys_swapon
- .long sys_reboot
- .long old_readdir
- .long old_mmap /* 90 */
- .long sys_munmap
- .long sys_truncate
- .long sys_ftruncate
- .long sys_fchmod
- .long sys_fchown16 /* 95 */
- .long sys_getpriority
- .long sys_setpriority
- .long sys_ni_syscall /* old profil syscall holder */
- .long sys_statfs
- .long sys_fstatfs /* 100 */
- .long sys_ni_syscall /* ioperm */
- .long sys_socketcall /* Obsolete implementation of socket syscall */
- .long sys_syslog
- .long sys_setitimer
- .long sys_getitimer /* 105 */
- .long sys_newstat
- .long sys_newlstat
- .long sys_newfstat
- .long sys_uname
- .long sys_ni_syscall /* 110 */ /* iopl */
- .long sys_vhangup
- .long sys_ni_syscall /* idle */
- .long sys_ni_syscall /* vm86old */
- .long sys_wait4
- .long sys_swapoff /* 115 */
- .long sys_sysinfo
- .long sys_ipc /* Obsolete ipc syscall implementation */
- .long sys_fsync
- .long sys_sigreturn
- .long sys_clone /* 120 */
- .long sys_setdomainname
- .long sys_newuname
- .long sys_ni_syscall /* sys_modify_ldt */
- .long sys_adjtimex
- .long sys_mprotect /* 125 */
- .long sys_sigprocmask
- .long sys_ni_syscall /* old "create_module" */
- .long sys_init_module
- .long sys_delete_module
- .long sys_ni_syscall /* 130: old "get_kernel_syms" */
- .long sys_quotactl
- .long sys_getpgid
- .long sys_fchdir
- .long sys_bdflush
- .long sys_sysfs /* 135 */
- .long sys_personality
- .long sys_ni_syscall /* for afs_syscall */
- .long sys_setfsuid16
- .long sys_setfsgid16
- .long sys_llseek /* 140 */
- .long sys_getdents
- .long sys_select
- .long sys_flock
- .long sys_msync
- .long sys_readv /* 145 */
- .long sys_writev
- .long sys_getsid
- .long sys_fdatasync
- .long sys_sysctl
- .long sys_mlock /* 150 */
- .long sys_munlock
- .long sys_mlockall
- .long sys_munlockall
- .long sys_sched_setparam
- .long sys_sched_getparam /* 155 */
- .long sys_sched_setscheduler
- .long sys_sched_getscheduler
- .long sys_sched_yield
- .long sys_sched_get_priority_max
- .long sys_sched_get_priority_min /* 160 */
- .long sys_sched_rr_get_interval
- .long sys_nanosleep
- .long sys_mremap
- .long sys_setresuid16
- .long sys_getresuid16 /* 165 */
- .long sys_ni_syscall /* vm86 */
- .long sys_ni_syscall /* old "query_module" */
- .long sys_poll
- .long sys_nfsservctl
- .long sys_setresgid16 /* 170 */
- .long sys_getresgid16
- .long sys_prctl
- .long sys_rt_sigreturn
- .long sys_rt_sigaction
- .long sys_rt_sigprocmask /* 175 */
- .long sys_rt_sigpending
- .long sys_rt_sigtimedwait
- .long sys_rt_sigqueueinfo
- .long sys_rt_sigsuspend
- .long sys_pread64 /* 180 */
- .long sys_pwrite64
- .long sys_chown16
- .long sys_getcwd
- .long sys_capget
- .long sys_capset /* 185 */
- .long sys_sigaltstack
- .long sys_sendfile
- .long sys_ni_syscall /* streams1 */
- .long sys_ni_syscall /* streams2 */
- .long sys_vfork /* 190 */
- .long sys_getrlimit
- .long sys_mmap2
- .long sys_truncate64
- .long sys_ftruncate64
- .long sys_stat64 /* 195 */
- .long sys_lstat64
- .long sys_fstat64
- .long sys_lchown
- .long sys_getuid
- .long sys_getgid /* 200 */
- .long sys_geteuid
- .long sys_getegid
- .long sys_setreuid
- .long sys_setregid
- .long sys_getgroups /* 205 */
- .long sys_setgroups
- .long sys_fchown
- .long sys_setresuid
- .long sys_getresuid
- .long sys_setresgid /* 210 */
- .long sys_getresgid
- .long sys_chown
- .long sys_setuid
- .long sys_setgid
- .long sys_setfsuid /* 215 */
- .long sys_setfsgid
- .long sys_pivot_root
- .long sys_mincore
- .long sys_madvise
- /* Broken-out socket family (maintain backwards compatibility in syscall
- numbering with 2.4) */
- .long sys_socket /* 220 */
- .long sys_bind
- .long sys_connect
- .long sys_listen
- .long sys_accept
- .long sys_getsockname /* 225 */
- .long sys_getpeername
- .long sys_socketpair
- .long sys_send
- .long sys_sendto
- .long sys_recv /* 230*/
- .long sys_recvfrom
- .long sys_shutdown
- .long sys_setsockopt
- .long sys_getsockopt
- .long sys_sendmsg /* 235 */
- .long sys_recvmsg
- /* Broken-out IPC family (maintain backwards compatibility in syscall
- numbering with 2.4) */
- .long sys_semop
- .long sys_semget
- .long sys_semctl
- .long sys_msgsnd /* 240 */
- .long sys_msgrcv
- .long sys_msgget
- .long sys_msgctl
- .long sys_ni_syscall /* sys_shmatcall */
- .long sys_shmdt /* 245 */
- .long sys_shmget
- .long sys_shmctl
- /* Rest of syscalls listed in 2.4 i386 unistd.h */
- .long sys_getdents64
- .long sys_fcntl64
- .long sys_ni_syscall /* 250 reserved for TUX */
- .long sys_ni_syscall /* Reserved for Security */
- .long sys_gettid
- .long sys_readahead
- .long sys_setxattr
- .long sys_lsetxattr /* 255 */
- .long sys_fsetxattr
- .long sys_getxattr
- .long sys_lgetxattr
- .long sys_fgetxattr
- .long sys_listxattr /* 260 */
- .long sys_llistxattr
- .long sys_flistxattr
- .long sys_removexattr
- .long sys_lremovexattr
- .long sys_fremovexattr /* 265 */
- .long sys_tkill
- .long sys_sendfile64
- .long sys_futex
- .long sys_sched_setaffinity
- .long sys_sched_getaffinity /* 270 */
- .long sys_ni_syscall
- .long sys_ni_syscall
- .long sys_io_setup
- .long sys_io_destroy
- .long sys_io_getevents /* 275 */
- .long sys_io_submit
- .long sys_io_cancel
- .long sys_fadvise64
- .long sys_ni_syscall
- .long sys_exit_group /* 280 */
- /* Rest of new 2.6 syscalls */
- .long sys_lookup_dcookie
- .long sys_epoll_create
- .long sys_epoll_ctl
- .long sys_epoll_wait
- .long sys_remap_file_pages /* 285 */
- .long sys_set_tid_address
- .long sys_timer_create
- .long sys_timer_settime
- .long sys_timer_gettime
- .long sys_timer_getoverrun /* 290 */
- .long sys_timer_delete
- .long sys_clock_settime
- .long sys_clock_gettime
- .long sys_clock_getres
- .long sys_clock_nanosleep /* 295 */
- .long sys_statfs64
- .long sys_fstatfs64
- .long sys_tgkill
- .long sys_utimes
- .long sys_fadvise64_64 /* 300 */
- .long sys_ni_syscall /* Reserved for vserver */
- .long sys_ni_syscall /* Reserved for mbind */
- .long sys_ni_syscall /* get_mempolicy */
- .long sys_ni_syscall /* set_mempolicy */
- .long sys_mq_open /* 305 */
- .long sys_mq_unlink
- .long sys_mq_timedsend
- .long sys_mq_timedreceive
- .long sys_mq_notify
- .long sys_mq_getsetattr /* 310 */
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/time.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2003 Richard Curnow
- *
- * Original TMU/RTC code taken from sh version.
- * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka
- * Some code taken from i386 version.
- * Copyright (C) 1991, 1992, 1995 Linus Torvalds
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/profile.h>
-#include <linux/smp.h>
-
-#include <asm/registers.h> /* required by inline __asm__ stmt. */
-
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/delay.h>
-
-#include <linux/timex.h>
-#include <linux/irq.h>
-#include <asm/hardware.h>
-
-#define TMU_TOCR_INIT 0x00
-#define TMU0_TCR_INIT 0x0020
-#define TMU_TSTR_INIT 1
-
-/* RCR1 Bits */
-#define RCR1_CF 0x80 /* Carry Flag */
-#define RCR1_CIE 0x10 /* Carry Interrupt Enable */
-#define RCR1_AIE 0x08 /* Alarm Interrupt Enable */
-#define RCR1_AF 0x01 /* Alarm Flag */
-
-/* RCR2 Bits */
-#define RCR2_PEF 0x80 /* PEriodic interrupt Flag */
-#define RCR2_PESMASK 0x70 /* Periodic interrupt Set */
-#define RCR2_RTCEN 0x08 /* ENable RTC */
-#define RCR2_ADJ 0x04 /* ADJustment (30-second) */
-#define RCR2_RESET 0x02 /* Reset bit */
-#define RCR2_START 0x01 /* Start bit */
-
-/* Clock, Power and Reset Controller */
-#define CPRC_BLOCK_OFF 0x01010000
-#define CPRC_BASE PHYS_PERIPHERAL_BLOCK + CPRC_BLOCK_OFF
-
-#define FRQCR (cprc_base+0x0)
-#define WTCSR (cprc_base+0x0018)
-#define STBCR (cprc_base+0x0030)
-
-/* Time Management Unit */
-#define TMU_BLOCK_OFF 0x01020000
-#define TMU_BASE PHYS_PERIPHERAL_BLOCK + TMU_BLOCK_OFF
-#define TMU0_BASE tmu_base + 0x8 + (0xc * 0x0)
-#define TMU1_BASE tmu_base + 0x8 + (0xc * 0x1)
-#define TMU2_BASE tmu_base + 0x8 + (0xc * 0x2)
-
-#define TMU_TOCR tmu_base+0x0 /* Byte access */
-#define TMU_TSTR tmu_base+0x4 /* Byte access */
-
-#define TMU0_TCOR TMU0_BASE+0x0 /* Long access */
-#define TMU0_TCNT TMU0_BASE+0x4 /* Long access */
-#define TMU0_TCR TMU0_BASE+0x8 /* Word access */
-
-/* Real Time Clock */
-#define RTC_BLOCK_OFF 0x01040000
-#define RTC_BASE PHYS_PERIPHERAL_BLOCK + RTC_BLOCK_OFF
-
-#define R64CNT rtc_base+0x00
-#define RSECCNT rtc_base+0x04
-#define RMINCNT rtc_base+0x08
-#define RHRCNT rtc_base+0x0c
-#define RWKCNT rtc_base+0x10
-#define RDAYCNT rtc_base+0x14
-#define RMONCNT rtc_base+0x18
-#define RYRCNT rtc_base+0x1c /* 16bit */
-#define RSECAR rtc_base+0x20
-#define RMINAR rtc_base+0x24
-#define RHRAR rtc_base+0x28
-#define RWKAR rtc_base+0x2c
-#define RDAYAR rtc_base+0x30
-#define RMONAR rtc_base+0x34
-#define RCR1 rtc_base+0x38
-#define RCR2 rtc_base+0x3c
-
-#ifndef BCD_TO_BIN
-#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10)
-#endif
-
-#ifndef BIN_TO_BCD
-#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10)
-#endif
-
-#define TICK_SIZE (tick_nsec / 1000)
-
-extern unsigned long wall_jiffies;
-
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-static unsigned long tmu_base, rtc_base;
-unsigned long cprc_base;
-
-/* Variables to allow interpolation of time of day to resolution better than a
- * jiffy. */
-
-/* This is effectively protected by xtime_lock */
-static unsigned long ctc_last_interrupt;
-static unsigned long long usecs_per_jiffy = 1000000/HZ; /* Approximation */
-
-#define CTC_JIFFY_SCALE_SHIFT 40
-
-/* 2**CTC_JIFFY_SCALE_SHIFT / ctc_ticks_per_jiffy */
-static unsigned long long scaled_recip_ctc_ticks_per_jiffy;
-
-/* Estimate number of microseconds that have elapsed since the last timer tick,
- by scaling the delta that has occured in the CTC register.
-
- WARNING WARNING WARNING : This algorithm relies on the CTC decrementing at
- the CPU clock rate. If the CPU sleeps, the CTC stops counting. Bear this
- in mind if enabling SLEEP_WORKS in process.c. In that case, this algorithm
- probably needs to use TMU.TCNT0 instead. This will work even if the CPU is
- sleeping, though will be coarser.
-
- FIXME : What if usecs_per_tick is moving around too much, e.g. if an adjtime
- is running or if the freq or tick arguments of adjtimex are modified after
- we have calibrated the scaling factor? This will result in either a jump at
- the end of a tick period, or a wrap backwards at the start of the next one,
- if the application is reading the time of day often enough. I think we
- ought to do better than this. For this reason, usecs_per_jiffy is left
- separated out in the calculation below. This allows some future hook into
- the adjtime-related stuff in kernel/timer.c to remove this hazard.
-
-*/
-
-static unsigned long usecs_since_tick(void)
-{
- unsigned long long current_ctc;
- long ctc_ticks_since_interrupt;
- unsigned long long ull_ctc_ticks_since_interrupt;
- unsigned long result;
-
- unsigned long long mul1_out;
- unsigned long long mul1_out_high;
- unsigned long long mul2_out_low, mul2_out_high;
-
- /* Read CTC register */
- asm ("getcon cr62, %0" : "=r" (current_ctc));
- /* Note, the CTC counts down on each CPU clock, not up.
- Note(2), use long type to get correct wraparound arithmetic when
- the counter crosses zero. */
- ctc_ticks_since_interrupt = (long) ctc_last_interrupt - (long) current_ctc;
- ull_ctc_ticks_since_interrupt = (unsigned long long) ctc_ticks_since_interrupt;
-
- /* Inline assembly to do 32x32x32->64 multiplier */
- asm volatile ("mulu.l %1, %2, %0" :
- "=r" (mul1_out) :
- "r" (ull_ctc_ticks_since_interrupt), "r" (usecs_per_jiffy));
-
- mul1_out_high = mul1_out >> 32;
-
- asm volatile ("mulu.l %1, %2, %0" :
- "=r" (mul2_out_low) :
- "r" (mul1_out), "r" (scaled_recip_ctc_ticks_per_jiffy));
-
-#if 1
- asm volatile ("mulu.l %1, %2, %0" :
- "=r" (mul2_out_high) :
- "r" (mul1_out_high), "r" (scaled_recip_ctc_ticks_per_jiffy));
-#endif
-
- result = (unsigned long) (((mul2_out_high << 32) + mul2_out_low) >> CTC_JIFFY_SCALE_SHIFT);
-
- return result;
-}
-
-void do_gettimeofday(struct timeval *tv)
-{
- unsigned long flags;
- unsigned long seq;
- unsigned long usec, sec;
-
- do {
- seq = read_seqbegin_irqsave(&xtime_lock, flags);
- usec = usecs_since_tick();
- {
- unsigned long lost = jiffies - wall_jiffies;
-
- if (lost)
- usec += lost * (1000000 / HZ);
- }
-
- sec = xtime.tv_sec;
- usec += xtime.tv_nsec / 1000;
- } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
- while (usec >= 1000000) {
- usec -= 1000000;
- sec++;
- }
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-
-int do_settimeofday(struct timespec *tv)
-{
- time_t wtm_sec, sec = tv->tv_sec;
- long wtm_nsec, nsec = tv->tv_nsec;
-
- if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
- return -EINVAL;
-
- write_seqlock_irq(&xtime_lock);
- /*
- * This is revolting. We need to set "xtime" correctly. However, the
- * value in this location is the value at the most recent update of
- * wall time. Discover what correction gettimeofday() would have
- * made, and then undo it!
- */
- nsec -= 1000 * (usecs_since_tick() +
- (jiffies - wall_jiffies) * (1000000 / HZ));
-
- wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
- wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
- set_normalized_timespec(&xtime, sec, nsec);
- set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
- time_adjust = 0; /* stop active adjtime() */
- time_status |= STA_UNSYNC;
- time_maxerror = NTP_PHASE_LIMIT;
- time_esterror = NTP_PHASE_LIMIT;
- write_sequnlock_irq(&xtime_lock);
- clock_was_set();
-
- return 0;
-}
-
-static int set_rtc_time(unsigned long nowtime)
-{
- int retval = 0;
- int real_seconds, real_minutes, cmos_minutes;
-
- ctrl_outb(RCR2_RESET, RCR2); /* Reset pre-scaler & stop RTC */
-
- cmos_minutes = ctrl_inb(RMINCNT);
- BCD_TO_BIN(cmos_minutes);
-
- /*
- * since we're only adjusting minutes and seconds,
- * don't interfere with hour overflow. This avoids
- * messing with unknown time zones but requires your
- * RTC not to be off by more than 15 minutes
- */
- real_seconds = nowtime % 60;
- real_minutes = nowtime / 60;
- if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
- real_minutes += 30; /* correct for half hour time zone */
- real_minutes %= 60;
-
- if (abs(real_minutes - cmos_minutes) < 30) {
- BIN_TO_BCD(real_seconds);
- BIN_TO_BCD(real_minutes);
- ctrl_outb(real_seconds, RSECCNT);
- ctrl_outb(real_minutes, RMINCNT);
- } else {
- printk(KERN_WARNING
- "set_rtc_time: can't update from %d to %d\n",
- cmos_minutes, real_minutes);
- retval = -1;
- }
-
- ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start RTC */
-
- return retval;
-}
-
-/* last time the RTC clock got updated */
-static long last_rtc_update = 0;
-
-static inline void sh64_do_profile(struct pt_regs *regs)
-{
- extern int _stext;
- unsigned long pc;
-
- profile_hook(regs);
-
- if (user_mode(regs))
- return;
-
- /* Don't profile cpu_idle.. */
- if (!prof_buffer || !current->pid)
- return;
-
- pc = instruction_pointer(regs);
- pc -= (unsigned long) &_stext;
- pc >>= prof_shift;
-
- /*
- * Don't ignore out-of-bounds PC values silently, put them into the
- * last histogram slot, so if present, they will show up as a sharp
- * peak.
- */
- if (pc > prof_len - 1)
- pc = prof_len - 1;
-
- /* We could just be sloppy and not lock against a re-entry on this
- increment, but the profiling code won't always be linked in anyway. */
- atomic_inc((atomic_t *)&prof_buffer[pc]);
-}
-
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-static inline void do_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned long long current_ctc;
- asm ("getcon cr62, %0" : "=r" (current_ctc));
- ctc_last_interrupt = (unsigned long) current_ctc;
-
- do_timer(regs);
-
- sh64_do_profile(regs);
-
-#ifdef CONFIG_HEARTBEAT
- {
- extern void heartbeat(void);
-
- heartbeat();
- }
-#endif
-
- /*
- * If we have an externally synchronized Linux clock, then update
- * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
- * called as close as possible to 500 ms before the new second starts.
- */
- if ((time_status & STA_UNSYNC) == 0 &&
- xtime.tv_sec > last_rtc_update + 660 &&
- (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
- (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
- if (set_rtc_time(xtime.tv_sec) == 0)
- last_rtc_update = xtime.tv_sec;
- else
- last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
- }
-}
-
-/*
- * This is the same as the above, except we _also_ save the current
- * Time Stamp Counter value at the time of the timer interrupt, so that
- * we later on can estimate the time of day more exactly.
- */
-static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned long timer_status;
-
- /* Clear UNF bit */
- timer_status = ctrl_inw(TMU0_TCR);
- timer_status &= ~0x100;
- ctrl_outw(timer_status, TMU0_TCR);
-
- /*
- * Here we are in the timer irq handler. We just have irqs locally
- * disabled but we don't know if the timer_bh is running on the other
- * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
- * the irq version of write_lock because as just said we have irq
- * locally disabled. -arca
- */
- write_lock(&xtime_lock);
- do_timer_interrupt(irq, NULL, regs);
- write_unlock(&xtime_lock);
-
- return IRQ_HANDLED;
-}
-
-static unsigned long get_rtc_time(void)
-{
- unsigned int sec, min, hr, wk, day, mon, yr, yr100;
-
- again:
- do {
- ctrl_outb(0, RCR1); /* Clear CF-bit */
- sec = ctrl_inb(RSECCNT);
- min = ctrl_inb(RMINCNT);
- hr = ctrl_inb(RHRCNT);
- wk = ctrl_inb(RWKCNT);
- day = ctrl_inb(RDAYCNT);
- mon = ctrl_inb(RMONCNT);
- yr = ctrl_inw(RYRCNT);
- yr100 = (yr >> 8);
- yr &= 0xff;
- } while ((ctrl_inb(RCR1) & RCR1_CF) != 0);
-
- BCD_TO_BIN(yr100);
- BCD_TO_BIN(yr);
- BCD_TO_BIN(mon);
- BCD_TO_BIN(day);
- BCD_TO_BIN(hr);
- BCD_TO_BIN(min);
- BCD_TO_BIN(sec);
-
- if (yr > 99 || mon < 1 || mon > 12 || day > 31 || day < 1 ||
- hr > 23 || min > 59 || sec > 59) {
- printk(KERN_ERR
- "SH RTC: invalid value, resetting to 1 Jan 2000\n");
- ctrl_outb(RCR2_RESET, RCR2); /* Reset & Stop */
- ctrl_outb(0, RSECCNT);
- ctrl_outb(0, RMINCNT);
- ctrl_outb(0, RHRCNT);
- ctrl_outb(6, RWKCNT);
- ctrl_outb(1, RDAYCNT);
- ctrl_outb(1, RMONCNT);
- ctrl_outw(0x2000, RYRCNT);
- ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start */
- goto again;
- }
-
- return mktime(yr100 * 100 + yr, mon, day, hr, min, sec);
-}
-
-static __init unsigned int get_cpu_hz(void)
-{
- unsigned int count;
- unsigned long __dummy;
- unsigned long ctc_val_init, ctc_val;
-
- /*
- ** Regardless the toolchain, force the compiler to use the
- ** arbitrary register r3 as a clock tick counter.
- ** NOTE: r3 must be in accordance with rtc_interrupt()
- */
- register unsigned long long __rtc_irq_flag __asm__ ("r3");
-
- sti();
- do {} while (ctrl_inb(R64CNT) != 0);
- ctrl_outb(RCR1_CIE, RCR1); /* Enable carry interrupt */
-
- /*
- * r3 is arbitrary. CDC does not support "=z".
- */
- ctc_val_init = 0xffffffff;
- ctc_val = ctc_val_init;
-
- asm volatile("gettr tr0, %1\n\t"
- "putcon %0, " __CTC "\n\t"
- "and %2, r63, %2\n\t"
- "pta $+4, tr0\n\t"
- "beq/l %2, r63, tr0\n\t"
- "ptabs %1, tr0\n\t"
- "getcon " __CTC ", %0\n\t"
- : "=r"(ctc_val), "=r" (__dummy), "=r" (__rtc_irq_flag)
- : "0" (0));
- cli();
- /*
- * SH-3:
- * CPU clock = 4 stages * loop
- * tst rm,rm if id ex
- * bt/s 1b if id ex
- * add #1,rd if id ex
- * (if) pipe line stole
- * tst rm,rm if id ex
- * ....
- *
- *
- * SH-4:
- * CPU clock = 6 stages * loop
- * I don't know why.
- * ....
- *
- * SH-5:
- * Use CTC register to count. This approach returns the right value
- * even if the I-cache is disabled (e.g. whilst debugging.)
- *
- */
-
- count = ctc_val_init - ctc_val; /* CTC counts down */
-
-#if defined (CONFIG_SH_SIMULATOR)
- /*
- * Let's pretend we are a 5MHz SH-5 to avoid a too
- * little timer interval. Also to keep delay
- * calibration within a reasonable time.
- */
- return 5000000;
-#else
- /*
- * This really is count by the number of clock cycles
- * by the ratio between a complete R64CNT
- * wrap-around (128) and CUI interrupt being raised (64).
- */
- return count*2;
-#endif
-}
-
-static irqreturn_t rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- ctrl_outb(0, RCR1); /* Disable Carry Interrupts */
- regs->regs[3] = 1; /* Using r3 */
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "timer", NULL, NULL};
-static struct irqaction irq1 = { rtc_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "rtc", NULL, NULL};
-
-void __init time_init(void)
-{
- unsigned int cpu_clock, master_clock, bus_clock, module_clock;
- unsigned long interval;
- unsigned long frqcr, ifc, pfc;
- static int ifc_table[] = { 2, 4, 6, 8, 10, 12, 16, 24 };
-#define bfc_table ifc_table /* Same */
-#define pfc_table ifc_table /* Same */
-
- tmu_base = onchip_remap(TMU_BASE, 1024, "TMU");
- if (!tmu_base) {
- panic("Unable to remap TMU\n");
- }
-
- rtc_base = onchip_remap(RTC_BASE, 1024, "RTC");
- if (!rtc_base) {
- panic("Unable to remap RTC\n");
- }
-
- cprc_base = onchip_remap(CPRC_BASE, 1024, "CPRC");
- if (!cprc_base) {
- panic("Unable to remap CPRC\n");
- }
-
- xtime.tv_sec = get_rtc_time();
- xtime.tv_nsec = 0;
-
- setup_irq(TIMER_IRQ, &irq0);
- setup_irq(RTC_IRQ, &irq1);
-
- /* Check how fast it is.. */
- cpu_clock = get_cpu_hz();
-
- /* Note careful order of operations to maintain reasonable precision and avoid overflow. */
- scaled_recip_ctc_ticks_per_jiffy = ((1ULL << CTC_JIFFY_SCALE_SHIFT) / (unsigned long long)(cpu_clock / HZ));
-
- disable_irq(RTC_IRQ);
-
- printk("CPU clock: %d.%02dMHz\n",
- (cpu_clock / 1000000), (cpu_clock % 1000000)/10000);
- {
- unsigned short bfc;
- frqcr = ctrl_inl(FRQCR);
- ifc = ifc_table[(frqcr>> 6) & 0x0007];
- bfc = bfc_table[(frqcr>> 3) & 0x0007];
- pfc = pfc_table[(frqcr>> 12) & 0x0007];
- master_clock = cpu_clock * ifc;
- bus_clock = master_clock/bfc;
- }
-
- printk("Bus clock: %d.%02dMHz\n",
- (bus_clock/1000000), (bus_clock % 1000000)/10000);
- module_clock = master_clock/pfc;
- printk("Module clock: %d.%02dMHz\n",
- (module_clock/1000000), (module_clock % 1000000)/10000);
- interval = (module_clock/(HZ*4));
-
- printk("Interval = %ld\n", interval);
-
- current_cpu_data.cpu_clock = cpu_clock;
- current_cpu_data.master_clock = master_clock;
- current_cpu_data.bus_clock = bus_clock;
- current_cpu_data.module_clock = module_clock;
-
- /* Start TMU0 */
- ctrl_outb(TMU_TOCR_INIT, TMU_TOCR);
- ctrl_outw(TMU0_TCR_INIT, TMU0_TCR);
- ctrl_outl(interval, TMU0_TCOR);
- ctrl_outl(interval, TMU0_TCNT);
- ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
-}
-
-void enter_deep_standby(void)
-{
- /* Disable watchdog timer */
- ctrl_outl(0xa5000000, WTCSR);
- /* Configure deep standby on sleep */
- ctrl_outl(0x03, STBCR);
-
-#ifdef CONFIG_SH_ALPHANUMERIC
- {
- extern void mach_alphanum(int position, unsigned char value);
- extern void mach_alphanum_brightness(int setting);
- char halted[] = "Halted. ";
- int i;
- mach_alphanum_brightness(6); /* dimmest setting above off */
- for (i=0; i<8; i++) {
- mach_alphanum(i, halted[i]);
- }
- asm __volatile__ ("synco");
- }
-#endif
-
- asm __volatile__ ("sleep");
- asm __volatile__ ("synci");
- asm __volatile__ ("nop");
- asm __volatile__ ("nop");
- asm __volatile__ ("nop");
- asm __volatile__ ("nop");
- panic("Unexpected wakeup!\n");
-}
-
-/*
- * Scheduler clock - returns current time in nanosec units.
- */
-unsigned long long sched_clock(void)
-{
- return (unsigned long long)jiffies * (1000000000 / HZ);
-}
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/traps.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- */
-
-/*
- * 'Traps.c' handles hardware traps and faults after we have saved some
- * state in 'entry.S'.
- */
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/kallsyms.h>
-#include <linux/interrupt.h>
-#include <linux/sysctl.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/atomic.h>
-#include <asm/processor.h>
-#include <asm/pgtable.h>
-
-#undef DEBUG_EXCEPTION
-#ifdef DEBUG_EXCEPTION
-/* implemented in ../lib/dbg.c */
-extern void show_excp_regs(char *fname, int trapnr, int signr,
- struct pt_regs *regs);
-#else
-#define show_excp_regs(a, b, c, d)
-#endif
-
-static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
- unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk);
-
-#define DO_ERROR(trapnr, signr, str, name, tsk) \
-asmlinkage void do_##name(unsigned long error_code, struct pt_regs *regs) \
-{ \
- do_unhandled_exception(trapnr, signr, str, __stringify(name), error_code, regs, current); \
-}
-
-spinlock_t die_lock;
-
-void die(const char * str, struct pt_regs * regs, long err)
-{
- console_verbose();
- spin_lock_irq(&die_lock);
- printk("%s: %lx\n", str, (err & 0xffffff));
- show_regs(regs);
- spin_unlock_irq(&die_lock);
- do_exit(SIGSEGV);
-}
-
-static inline void die_if_kernel(const char * str, struct pt_regs * regs, long err)
-{
- if (!user_mode(regs))
- die(str, regs, err);
-}
-
-static void die_if_no_fixup(const char * str, struct pt_regs * regs, long err)
-{
- if (!user_mode(regs)) {
- const struct exception_table_entry *fixup;
- fixup = search_exception_tables(regs->pc);
- if (fixup) {
- regs->pc = fixup->fixup;
- return;
- }
- die(str, regs, err);
- }
-}
-
-DO_ERROR(13, SIGILL, "illegal slot instruction", illegal_slot_inst, current)
-DO_ERROR(87, SIGSEGV, "address error (exec)", address_error_exec, current)
-
-
-/* Implement misaligned load/store handling for kernel (and optionally for user
- mode too). Limitation : only SHmedia mode code is handled - there is no
- handling at all for misaligned accesses occurring in SHcompact code yet. */
-
-static int misaligned_fixup(struct pt_regs *regs);
-
-asmlinkage void do_address_error_load(unsigned long error_code, struct pt_regs *regs)
-{
- if (misaligned_fixup(regs) < 0) {
- do_unhandled_exception(7, SIGSEGV, "address error(load)",
- "do_address_error_load",
- error_code, regs, current);
- }
- return;
-}
-
-asmlinkage void do_address_error_store(unsigned long error_code, struct pt_regs *regs)
-{
- if (misaligned_fixup(regs) < 0) {
- do_unhandled_exception(8, SIGSEGV, "address error(store)",
- "do_address_error_store",
- error_code, regs, current);
- }
- return;
-}
-
-#if defined(CONFIG_SH64_ID2815_WORKAROUND)
-
-#define OPCODE_INVALID 0
-#define OPCODE_USER_VALID 1
-#define OPCODE_PRIV_VALID 2
-
-/* getcon/putcon - requires checking which control register is referenced. */
-#define OPCODE_CTRL_REG 3
-
-/* Table of valid opcodes for SHmedia mode.
- Form a 10-bit value by concatenating the major/minor opcodes i.e.
- opcode[31:26,20:16]. The 6 MSBs of this value index into the following
- array. The 4 LSBs select the bit-pair in the entry (bits 1:0 correspond to
- LSBs==4'b0000 etc). */
-static unsigned long shmedia_opcode_table[64] = {
- 0x55554044,0x54445055,0x15141514,0x14541414,0x00000000,0x10001000,0x01110055,0x04050015,
- 0x00000444,0xc0000000,0x44545515,0x40405555,0x55550015,0x10005555,0x55555505,0x04050000,
- 0x00000555,0x00000404,0x00040445,0x15151414,0x00000000,0x00000000,0x00000000,0x00000000,
- 0x00000055,0x40404444,0x00000404,0xc0009495,0x00000000,0x00000000,0x00000000,0x00000000,
- 0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
- 0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
- 0x80005050,0x04005055,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
- 0x81055554,0x00000404,0x55555555,0x55555555,0x00000000,0x00000000,0x00000000,0x00000000
-};
-
-void do_reserved_inst(unsigned long error_code, struct pt_regs *regs)
-{
- /* Workaround SH5-101 cut2 silicon defect #2815 :
- in some situations, inter-mode branches from SHcompact -> SHmedia
- which should take ITLBMISS or EXECPROT exceptions at the target
- falsely take RESINST at the target instead. */
-
- unsigned long opcode = 0x6ff4fff0; /* guaranteed reserved opcode */
- unsigned long pc, aligned_pc;
- int get_user_error;
- int trapnr = 12;
- int signr = SIGILL;
- char *exception_name = "reserved_instruction";
-
- pc = regs->pc;
- if ((pc & 3) == 1) {
- /* SHmedia : check for defect. This requires executable vmas
- to be readable too. */
- aligned_pc = pc & ~3;
- if (!access_ok(VERIFY_READ, aligned_pc, sizeof(unsigned long))) {
- get_user_error = -EFAULT;
- } else {
- get_user_error = __get_user(opcode, (unsigned long *)aligned_pc);
- }
- if (get_user_error >= 0) {
- unsigned long index, shift;
- unsigned long major, minor, combined;
- unsigned long reserved_field;
- reserved_field = opcode & 0xf; /* These bits are currently reserved as zero in all valid opcodes */
- major = (opcode >> 26) & 0x3f;
- minor = (opcode >> 16) & 0xf;
- combined = (major << 4) | minor;
- index = major;
- shift = minor << 1;
- if (reserved_field == 0) {
- int opcode_state = (shmedia_opcode_table[index] >> shift) & 0x3;
- switch (opcode_state) {
- case OPCODE_INVALID:
- /* Trap. */
- break;
- case OPCODE_USER_VALID:
- /* Restart the instruction : the branch to the instruction will now be from an RTE
- not from SHcompact so the silicon defect won't be triggered. */
- return;
- case OPCODE_PRIV_VALID:
- if (!user_mode(regs)) {
- /* Should only ever get here if a module has
- SHcompact code inside it. If so, the same fix up is needed. */
- return; /* same reason */
- }
- /* Otherwise, user mode trying to execute a privileged instruction -
- fall through to trap. */
- break;
- case OPCODE_CTRL_REG:
- /* If in privileged mode, return as above. */
- if (!user_mode(regs)) return;
- /* In user mode ... */
- if (combined == 0x9f) { /* GETCON */
- unsigned long regno = (opcode >> 20) & 0x3f;
- if (regno >= 62) {
- return;
- }
- /* Otherwise, reserved or privileged control register, => trap */
- } else if (combined == 0x1bf) { /* PUTCON */
- unsigned long regno = (opcode >> 4) & 0x3f;
- if (regno >= 62) {
- return;
- }
- /* Otherwise, reserved or privileged control register, => trap */
- } else {
- /* Trap */
- }
- break;
- default:
- /* Fall through to trap. */
- break;
- }
- }
- /* fall through to normal resinst processing */
- } else {
- /* Error trying to read opcode. This typically means a
- real fault, not a RESINST any more. So change the
- codes. */
- trapnr = 87;
- exception_name = "address error (exec)";
- signr = SIGSEGV;
- }
- }
-
- do_unhandled_exception(trapnr, signr, exception_name, "do_reserved_inst", error_code, regs, current);
-}
-
-#else /* CONFIG_SH64_ID2815_WORKAROUND */
-
-/* If the workaround isn't needed, this is just a straightforward reserved
- instruction */
-DO_ERROR(12, SIGILL, "reserved instruction", reserved_inst, current)
-
-#endif /* CONFIG_SH64_ID2815_WORKAROUND */
-
-
-#include <asm/system.h>
-
-/* Called with interrupts disabled */
-asmlinkage void do_exception_error(unsigned long ex, struct pt_regs *regs)
-{
- PLS();
- show_excp_regs(__FUNCTION__, -1, -1, regs);
- die_if_kernel("exception", regs, ex);
-}
-
-int do_unknown_trapa(unsigned long scId, struct pt_regs *regs)
-{
- /* Syscall debug */
- printk("System call ID error: [0x1#args:8 #syscall:16 0x%lx]\n", scId);
-
- die_if_kernel("unknown trapa", regs, scId);
-
- return -ENOSYS;
-}
-
-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
-#ifdef CONFIG_KALLSYMS
- extern void sh64_unwind(struct pt_regs *regs);
- struct pt_regs *regs;
-
- regs = tsk ? tsk->thread.kregs : NULL;
-
- sh64_unwind(regs);
-#else
- printk(KERN_ERR "Can't backtrace on sh64 without CONFIG_KALLSYMS\n");
-#endif
-}
-
-void show_task(unsigned long *sp)
-{
- show_stack(NULL, sp);
-}
-
-void dump_stack(void)
-{
- show_task(NULL);
-}
-
-static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
- unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk)
-{
- show_excp_regs(fn_name, trapnr, signr, regs);
- tsk->thread.error_code = error_code;
- tsk->thread.trap_no = trapnr;
-
- if (user_mode(regs))
- force_sig(signr, tsk);
-
- die_if_no_fixup(str, regs, error_code);
-}
-
-static int read_opcode(unsigned long long pc, unsigned long *result_opcode, int from_user_mode)
-{
- int get_user_error;
- unsigned long aligned_pc;
- unsigned long opcode;
-
- if ((pc & 3) == 1) {
- /* SHmedia */
- aligned_pc = pc & ~3;
- if (from_user_mode) {
- if (!access_ok(VERIFY_READ, aligned_pc, sizeof(unsigned long))) {
- get_user_error = -EFAULT;
- } else {
- get_user_error = __get_user(opcode, (unsigned long *)aligned_pc);
- *result_opcode = opcode;
- }
- return get_user_error;
- } else {
- /* If the fault was in the kernel, we can either read
- * this directly, or if not, we fault.
- */
- *result_opcode = *(unsigned long *) aligned_pc;
- return 0;
- }
- } else if ((pc & 1) == 0) {
- /* SHcompact */
- /* TODO : provide handling for this. We don't really support
- user-mode SHcompact yet, and for a kernel fault, this would
- have to come from a module built for SHcompact. */
- return -EFAULT;
- } else {
- /* misaligned */
- return -EFAULT;
- }
-}
-
-static int address_is_sign_extended(__u64 a)
-{
- __u64 b;
-#if (NEFF == 32)
- b = (__u64)(__s64)(__s32)(a & 0xffffffffUL);
- return (b == a) ? 1 : 0;
-#else
-#error "Sign extend check only works for NEFF==32"
-#endif
-}
-
-static int generate_and_check_address(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift,
- __u64 *address)
-{
- /* return -1 for fault, 0 for OK */
-
- __u64 base_address, addr;
- int basereg;
-
- basereg = (opcode >> 20) & 0x3f;
- base_address = regs->regs[basereg];
- if (displacement_not_indexed) {
- __s64 displacement;
- displacement = (opcode >> 10) & 0x3ff;
- displacement = ((displacement << 54) >> 54); /* sign extend */
- addr = (__u64)((__s64)base_address + (displacement << width_shift));
- } else {
- __u64 offset;
- int offsetreg;
- offsetreg = (opcode >> 10) & 0x3f;
- offset = regs->regs[offsetreg];
- addr = base_address + offset;
- }
-
- /* Check sign extended */
- if (!address_is_sign_extended(addr)) {
- return -1;
- }
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- /* Check accessible. For misaligned access in the kernel, assume the
- address is always accessible (and if not, just fault when the
- load/store gets done.) */
- if (user_mode(regs)) {
- if (addr >= TASK_SIZE) {
- return -1;
- }
- /* Do access_ok check later - it depends on whether it's a load or a store. */
- }
-#endif
-
- *address = addr;
- return 0;
-}
-
-/* Default value as for sh */
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-static int user_mode_unaligned_fixup_count = 10;
-static int user_mode_unaligned_fixup_enable = 1;
-#endif
-
-static int kernel_mode_unaligned_fixup_count = 32;
-
-static void misaligned_kernel_word_load(__u64 address, int do_sign_extend, __u64 *result)
-{
- unsigned short x;
- unsigned char *p, *q;
- p = (unsigned char *) (int) address;
- q = (unsigned char *) &x;
- q[0] = p[0];
- q[1] = p[1];
-
- if (do_sign_extend) {
- *result = (__u64)(__s64) *(short *) &x;
- } else {
- *result = (__u64) x;
- }
-}
-
-static void misaligned_kernel_word_store(__u64 address, __u64 value)
-{
- unsigned short x;
- unsigned char *p, *q;
- p = (unsigned char *) (int) address;
- q = (unsigned char *) &x;
-
- x = (__u16) value;
- p[0] = q[0];
- p[1] = q[1];
-}
-
-static int misaligned_load(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift,
- int do_sign_extend)
-{
- /* Return -1 for a fault, 0 for OK */
- int error;
- int destreg;
- __u64 address;
-
- error = generate_and_check_address(regs, opcode,
- displacement_not_indexed, width_shift, &address);
- if (error < 0) {
- return error;
- }
-
- destreg = (opcode >> 4) & 0x3f;
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- if (user_mode(regs)) {
- __u64 buffer;
-
- if (!access_ok(VERIFY_READ, (unsigned long) address, 1UL<<width_shift)) {
- return -1;
- }
-
- if (__copy_user(&buffer, (const void *)(int)address, (1 << width_shift)) > 0) {
- return -1; /* fault */
- }
- switch (width_shift) {
- case 1:
- if (do_sign_extend) {
- regs->regs[destreg] = (__u64)(__s64) *(__s16 *) &buffer;
- } else {
- regs->regs[destreg] = (__u64) *(__u16 *) &buffer;
- }
- break;
- case 2:
- regs->regs[destreg] = (__u64)(__s64) *(__s32 *) &buffer;
- break;
- case 3:
- regs->regs[destreg] = buffer;
- break;
- default:
- printk("Unexpected width_shift %d in misaligned_load, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
- } else
-#endif
- {
- /* kernel mode - we can take short cuts since if we fault, it's a genuine bug */
- __u64 lo, hi;
-
- switch (width_shift) {
- case 1:
- misaligned_kernel_word_load(address, do_sign_extend, ®s->regs[destreg]);
- break;
- case 2:
- asm ("ldlo.l %1, 0, %0" : "=r" (lo) : "r" (address));
- asm ("ldhi.l %1, 3, %0" : "=r" (hi) : "r" (address));
- regs->regs[destreg] = lo | hi;
- break;
- case 3:
- asm ("ldlo.q %1, 0, %0" : "=r" (lo) : "r" (address));
- asm ("ldhi.q %1, 7, %0" : "=r" (hi) : "r" (address));
- regs->regs[destreg] = lo | hi;
- break;
-
- default:
- printk("Unexpected width_shift %d in misaligned_load, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
- }
-
- return 0;
-
-}
-
-static int misaligned_store(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift)
-{
- /* Return -1 for a fault, 0 for OK */
- int error;
- int srcreg;
- __u64 address;
-
- error = generate_and_check_address(regs, opcode,
- displacement_not_indexed, width_shift, &address);
- if (error < 0) {
- return error;
- }
-
- srcreg = (opcode >> 4) & 0x3f;
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- if (user_mode(regs)) {
- __u64 buffer;
-
- if (!access_ok(VERIFY_WRITE, (unsigned long) address, 1UL<<width_shift)) {
- return -1;
- }
-
- switch (width_shift) {
- case 1:
- *(__u16 *) &buffer = (__u16) regs->regs[srcreg];
- break;
- case 2:
- *(__u32 *) &buffer = (__u32) regs->regs[srcreg];
- break;
- case 3:
- buffer = regs->regs[srcreg];
- break;
- default:
- printk("Unexpected width_shift %d in misaligned_store, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
-
- if (__copy_user((void *)(int)address, &buffer, (1 << width_shift)) > 0) {
- return -1; /* fault */
- }
- } else
-#endif
- {
- /* kernel mode - we can take short cuts since if we fault, it's a genuine bug */
- __u64 val = regs->regs[srcreg];
-
- switch (width_shift) {
- case 1:
- misaligned_kernel_word_store(address, val);
- break;
- case 2:
- asm ("stlo.l %1, 0, %0" : : "r" (val), "r" (address));
- asm ("sthi.l %1, 3, %0" : : "r" (val), "r" (address));
- break;
- case 3:
- asm ("stlo.q %1, 0, %0" : : "r" (val), "r" (address));
- asm ("sthi.q %1, 7, %0" : : "r" (val), "r" (address));
- break;
-
- default:
- printk("Unexpected width_shift %d in misaligned_store, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
- }
-
- return 0;
-
-}
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-/* Never need to fix up misaligned FPU accesses within the kernel since that's a real
- error. */
-static int misaligned_fpu_load(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift,
- int do_paired_load)
-{
- /* Return -1 for a fault, 0 for OK */
- int error;
- int destreg;
- __u64 address;
-
- error = generate_and_check_address(regs, opcode,
- displacement_not_indexed, width_shift, &address);
- if (error < 0) {
- return error;
- }
-
- destreg = (opcode >> 4) & 0x3f;
- if (user_mode(regs)) {
- __u64 buffer;
- __u32 buflo, bufhi;
-
- if (!access_ok(VERIFY_READ, (unsigned long) address, 1UL<<width_shift)) {
- return -1;
- }
-
- if (__copy_user(&buffer, (const void *)(int)address, (1 << width_shift)) > 0) {
- return -1; /* fault */
- }
- /* 'current' may be the current owner of the FPU state, so
- context switch the registers into memory so they can be
- indexed by register number. */
- if (last_task_used_math == current) {
- grab_fpu();
- fpsave(¤t->thread.fpu.hard);
- release_fpu();
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-
- buflo = *(__u32*) &buffer;
- bufhi = *(1 + (__u32*) &buffer);
-
- switch (width_shift) {
- case 2:
- current->thread.fpu.hard.fp_regs[destreg] = buflo;
- break;
- case 3:
- if (do_paired_load) {
- current->thread.fpu.hard.fp_regs[destreg] = buflo;
- current->thread.fpu.hard.fp_regs[destreg+1] = bufhi;
- } else {
-#if defined(CONFIG_LITTLE_ENDIAN)
- current->thread.fpu.hard.fp_regs[destreg] = bufhi;
- current->thread.fpu.hard.fp_regs[destreg+1] = buflo;
-#else
- current->thread.fpu.hard.fp_regs[destreg] = buflo;
- current->thread.fpu.hard.fp_regs[destreg+1] = bufhi;
-#endif
- }
- break;
- default:
- printk("Unexpected width_shift %d in misaligned_fpu_load, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
- return 0;
- } else {
- die ("Misaligned FPU load inside kernel", regs, 0);
- return -1;
- }
-
-
-}
-
-static int misaligned_fpu_store(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift,
- int do_paired_load)
-{
- /* Return -1 for a fault, 0 for OK */
- int error;
- int srcreg;
- __u64 address;
-
- error = generate_and_check_address(regs, opcode,
- displacement_not_indexed, width_shift, &address);
- if (error < 0) {
- return error;
- }
-
- srcreg = (opcode >> 4) & 0x3f;
- if (user_mode(regs)) {
- __u64 buffer;
- /* Initialise these to NaNs. */
- __u32 buflo=0xffffffffUL, bufhi=0xffffffffUL;
-
- if (!access_ok(VERIFY_WRITE, (unsigned long) address, 1UL<<width_shift)) {
- return -1;
- }
-
- /* 'current' may be the current owner of the FPU state, so
- context switch the registers into memory so they can be
- indexed by register number. */
- if (last_task_used_math == current) {
- grab_fpu();
- fpsave(¤t->thread.fpu.hard);
- release_fpu();
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-
- switch (width_shift) {
- case 2:
- buflo = current->thread.fpu.hard.fp_regs[srcreg];
- break;
- case 3:
- if (do_paired_load) {
- buflo = current->thread.fpu.hard.fp_regs[srcreg];
- bufhi = current->thread.fpu.hard.fp_regs[srcreg+1];
- } else {
-#if defined(CONFIG_LITTLE_ENDIAN)
- bufhi = current->thread.fpu.hard.fp_regs[srcreg];
- buflo = current->thread.fpu.hard.fp_regs[srcreg+1];
-#else
- buflo = current->thread.fpu.hard.fp_regs[srcreg];
- bufhi = current->thread.fpu.hard.fp_regs[srcreg+1];
-#endif
- }
- break;
- default:
- printk("Unexpected width_shift %d in misaligned_fpu_store, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
-
- *(__u32*) &buffer = buflo;
- *(1 + (__u32*) &buffer) = bufhi;
- if (__copy_user((void *)(int)address, &buffer, (1 << width_shift)) > 0) {
- return -1; /* fault */
- }
- return 0;
- } else {
- die ("Misaligned FPU load inside kernel", regs, 0);
- return -1;
- }
-}
-#endif
-
-static int misaligned_fixup(struct pt_regs *regs)
-{
- unsigned long opcode;
- int error;
- int major, minor;
-
-#if !defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- /* Never fixup user mode misaligned accesses without this option enabled. */
- return -1;
-#else
- if (!user_mode_unaligned_fixup_enable) return -1;
-#endif
-
- error = read_opcode(regs->pc, &opcode, user_mode(regs));
- if (error < 0) {
- return error;
- }
- major = (opcode >> 26) & 0x3f;
- minor = (opcode >> 16) & 0xf;
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- if (user_mode(regs) && (user_mode_unaligned_fixup_count > 0)) {
- --user_mode_unaligned_fixup_count;
- /* Only do 'count' worth of these reports, to remove a potential DoS against syslog */
- printk("Fixing up unaligned userspace access in \"%s\" pid=%d pc=0x%08x ins=0x%08lx\n",
- current->comm, current->pid, (__u32)regs->pc, opcode);
- } else
-#endif
- if (!user_mode(regs) && (kernel_mode_unaligned_fixup_count > 0)) {
- --kernel_mode_unaligned_fixup_count;
- if (in_interrupt()) {
- printk("Fixing up unaligned kernelspace access in interrupt pc=0x%08x ins=0x%08lx\n",
- (__u32)regs->pc, opcode);
- } else {
- printk("Fixing up unaligned kernelspace access in \"%s\" pid=%d pc=0x%08x ins=0x%08lx\n",
- current->comm, current->pid, (__u32)regs->pc, opcode);
- }
- }
-
-
- switch (major) {
- case (0x84>>2): /* LD.W */
- error = misaligned_load(regs, opcode, 1, 1, 1);
- break;
- case (0xb0>>2): /* LD.UW */
- error = misaligned_load(regs, opcode, 1, 1, 0);
- break;
- case (0x88>>2): /* LD.L */
- error = misaligned_load(regs, opcode, 1, 2, 1);
- break;
- case (0x8c>>2): /* LD.Q */
- error = misaligned_load(regs, opcode, 1, 3, 0);
- break;
-
- case (0xa4>>2): /* ST.W */
- error = misaligned_store(regs, opcode, 1, 1);
- break;
- case (0xa8>>2): /* ST.L */
- error = misaligned_store(regs, opcode, 1, 2);
- break;
- case (0xac>>2): /* ST.Q */
- error = misaligned_store(regs, opcode, 1, 3);
- break;
-
- case (0x40>>2): /* indexed loads */
- switch (minor) {
- case 0x1: /* LDX.W */
- error = misaligned_load(regs, opcode, 0, 1, 1);
- break;
- case 0x5: /* LDX.UW */
- error = misaligned_load(regs, opcode, 0, 1, 0);
- break;
- case 0x2: /* LDX.L */
- error = misaligned_load(regs, opcode, 0, 2, 1);
- break;
- case 0x3: /* LDX.Q */
- error = misaligned_load(regs, opcode, 0, 3, 0);
- break;
- default:
- error = -1;
- break;
- }
- break;
-
- case (0x60>>2): /* indexed stores */
- switch (minor) {
- case 0x1: /* STX.W */
- error = misaligned_store(regs, opcode, 0, 1);
- break;
- case 0x2: /* STX.L */
- error = misaligned_store(regs, opcode, 0, 2);
- break;
- case 0x3: /* STX.Q */
- error = misaligned_store(regs, opcode, 0, 3);
- break;
- default:
- error = -1;
- break;
- }
- break;
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- case (0x94>>2): /* FLD.S */
- error = misaligned_fpu_load(regs, opcode, 1, 2, 0);
- break;
- case (0x98>>2): /* FLD.P */
- error = misaligned_fpu_load(regs, opcode, 1, 3, 1);
- break;
- case (0x9c>>2): /* FLD.D */
- error = misaligned_fpu_load(regs, opcode, 1, 3, 0);
- break;
- case (0x1c>>2): /* floating indexed loads */
- switch (minor) {
- case 0x8: /* FLDX.S */
- error = misaligned_fpu_load(regs, opcode, 0, 2, 0);
- break;
- case 0xd: /* FLDX.P */
- error = misaligned_fpu_load(regs, opcode, 0, 3, 1);
- break;
- case 0x9: /* FLDX.D */
- error = misaligned_fpu_load(regs, opcode, 0, 3, 0);
- break;
- default:
- error = -1;
- break;
- }
- break;
- case (0xb4>>2): /* FLD.S */
- error = misaligned_fpu_store(regs, opcode, 1, 2, 0);
- break;
- case (0xb8>>2): /* FLD.P */
- error = misaligned_fpu_store(regs, opcode, 1, 3, 1);
- break;
- case (0xbc>>2): /* FLD.D */
- error = misaligned_fpu_store(regs, opcode, 1, 3, 0);
- break;
- case (0x3c>>2): /* floating indexed stores */
- switch (minor) {
- case 0x8: /* FSTX.S */
- error = misaligned_fpu_store(regs, opcode, 0, 2, 0);
- break;
- case 0xd: /* FSTX.P */
- error = misaligned_fpu_store(regs, opcode, 0, 3, 1);
- break;
- case 0x9: /* FSTX.D */
- error = misaligned_fpu_store(regs, opcode, 0, 3, 0);
- break;
- default:
- error = -1;
- break;
- }
- break;
-#endif
-
- default:
- /* Fault */
- error = -1;
- break;
- }
-
- if (error < 0) {
- return error;
- } else {
- regs->pc += 4; /* Skip the instruction that's just been emulated */
- return 0;
- }
-
-}
-
-static ctl_table unaligned_table[] = {
- {1, "kernel_reports", &kernel_mode_unaligned_fixup_count,
- sizeof(int), 0644, NULL, &proc_dointvec},
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- {2, "user_reports", &user_mode_unaligned_fixup_count,
- sizeof(int), 0644, NULL, &proc_dointvec},
- {3, "user_enable", &user_mode_unaligned_fixup_enable,
- sizeof(int), 0644, NULL, &proc_dointvec},
-#endif
- {0}
-};
-
-static ctl_table unaligned_root[] = {
- {1, "unaligned_fixup", NULL, 0, 0555, unaligned_table},
- {0}
-};
-
-static ctl_table sh64_root[] = {
- {1, "sh64", NULL, 0, 0555, unaligned_root},
- {0}
-};
-static struct ctl_table_header *sysctl_header;
-static int __init init_sysctl(void)
-{
- sysctl_header = register_sysctl_table(sh64_root, 0);
- return 0;
-}
-
-__initcall(init_sysctl);
-
-
-asmlinkage void do_debug_interrupt(unsigned long code, struct pt_regs *regs)
-{
- u64 peek_real_address_q(u64 addr);
- u64 poke_real_address_q(u64 addr, u64 val);
- unsigned long long DM_EXP_CAUSE_PHY = 0x0c100010;
- unsigned long long exp_cause;
- /* It's not worth ioremapping the debug module registers for the amount
- of access we make to them - just go direct to their physical
- addresses. */
- exp_cause = peek_real_address_q(DM_EXP_CAUSE_PHY);
- if (exp_cause & ~4) {
- printk("DM.EXP_CAUSE had unexpected bits set (=%08lx)\n",
- (unsigned long)(exp_cause & 0xffffffff));
- }
- show_state();
- /* Clear all DEBUGINT causes */
- poke_real_address_q(DM_EXP_CAUSE_PHY, 0x0);
-}
-
+++ /dev/null
-/*
- * arch/sh64/kernel/unwind.c
- *
- * Copyright (C) 2004 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kallsyms.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <asm/page.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-
-static u8 regcache[63];
-
-/*
- * Finding the previous stack frame isn't horribly straightforward as it is
- * on some other platforms. In the sh64 case, we don't have "linked" stack
- * frames, so we need to do a bit of work to determine the previous frame,
- * and in turn, the previous r14/r18 pair.
- *
- * There are generally a few cases which determine where we can find out
- * the r14/r18 values. In the general case, this can be determined by poking
- * around the prologue of the symbol PC is in (note that we absolutely must
- * have frame pointer support as well as the kernel symbol table mapped,
- * otherwise we can't even get this far).
- *
- * In other cases, such as the interrupt/exception path, we can poke around
- * the sp/fp.
- *
- * Notably, this entire approach is somewhat error prone, and in the event
- * that the previous frame cannot be determined, that's all we can do.
- * Either way, this still leaves us with a more correct backtrace then what
- * we would be able to come up with by walking the stack (which is garbage
- * for anything beyond the first frame).
- * -- PFM.
- */
-static int lookup_prev_stack_frame(unsigned long fp, unsigned long pc,
- unsigned long *pprev_fp, unsigned long *pprev_pc,
- struct pt_regs *regs)
-{
- const char *sym;
- char *modname, namebuf[128];
- unsigned long offset, size;
- unsigned long prologue = 0;
- unsigned long fp_displacement = 0;
- unsigned long fp_prev = 0;
- unsigned long offset_r14 = 0, offset_r18 = 0;
- int i, found_prologue_end = 0;
-
- sym = kallsyms_lookup(pc, &size, &offset, &modname, namebuf);
- if (!sym)
- return -EINVAL;
-
- prologue = pc - offset;
- if (!prologue)
- return -EINVAL;
-
- /* Validate fp, to avoid risk of dereferencing a bad pointer later.
- Assume 128Mb since that's the amount of RAM on a Cayman. Modify
- when there is an SH-5 board with more. */
- if ((fp < (unsigned long) phys_to_virt(__MEMORY_START)) ||
- (fp >= (unsigned long)(phys_to_virt(__MEMORY_START)) + 128*1024*1024) ||
- ((fp & 7) != 0)) {
- return -EINVAL;
- }
-
- /*
- * Depth to walk, depth is completely arbitrary.
- */
- for (i = 0; i < 100; i++, prologue += sizeof(unsigned long)) {
- unsigned long op;
- u8 major, minor;
- u8 src, dest, disp;
-
- op = *(unsigned long *)prologue;
-
- major = (op >> 26) & 0x3f;
- src = (op >> 20) & 0x3f;
- minor = (op >> 16) & 0xf;
- disp = (op >> 10) & 0x3f;
- dest = (op >> 4) & 0x3f;
-
- /*
- * Stack frame creation happens in a number of ways.. in the
- * general case when the stack frame is less than 511 bytes,
- * it's generally created by an addi or addi.l:
- *
- * addi/addi.l r15, -FRAME_SIZE, r15
- *
- * in the event that the frame size is bigger than this, it's
- * typically created using a movi/sub pair as follows:
- *
- * movi FRAME_SIZE, rX
- * sub r15, rX, r15
- */
-
- switch (major) {
- case (0x00 >> 2):
- switch (minor) {
- case 0x8: /* add.l */
- case 0x9: /* add */
- /* Look for r15, r63, r14 */
- if (src == 15 && disp == 63 && dest == 14)
- found_prologue_end = 1;
-
- break;
- case 0xa: /* sub.l */
- case 0xb: /* sub */
- if (src != 15 || dest != 15)
- continue;
-
- fp_displacement -= regcache[disp];
- fp_prev = fp - fp_displacement;
- break;
- }
- break;
- case (0xa8 >> 2): /* st.l */
- if (src != 15)
- continue;
-
- switch (dest) {
- case 14:
- if (offset_r14 || fp_displacement == 0)
- continue;
-
- offset_r14 = (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
- offset_r14 *= sizeof(unsigned long);
- offset_r14 += fp_displacement;
- break;
- case 18:
- if (offset_r18 || fp_displacement == 0)
- continue;
-
- offset_r18 = (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
- offset_r18 *= sizeof(unsigned long);
- offset_r18 += fp_displacement;
- break;
- }
-
- break;
- case (0xcc >> 2): /* movi */
- if (dest >= 63) {
- printk(KERN_NOTICE "%s: Invalid dest reg %d "
- "specified in movi handler. Failed "
- "opcode was 0x%lx: ", __FUNCTION__,
- dest, op);
-
- continue;
- }
-
- /* Sign extend */
- regcache[dest] =
- ((((s64)(u64)op >> 10) & 0xffff) << 54) >> 54;
- break;
- case (0xd0 >> 2): /* addi */
- case (0xd4 >> 2): /* addi.l */
- /* Look for r15, -FRAME_SIZE, r15 */
- if (src != 15 || dest != 15)
- continue;
-
- /* Sign extended frame size.. */
- fp_displacement +=
- (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
- fp_prev = fp - fp_displacement;
- break;
- }
-
- if (found_prologue_end && offset_r14 && (offset_r18 || *pprev_pc) && fp_prev)
- break;
- }
-
- if (offset_r14 == 0 || fp_prev == 0) {
- if (!offset_r14)
- pr_debug("Unable to find r14 offset\n");
- if (!fp_prev)
- pr_debug("Unable to find previous fp\n");
-
- return -EINVAL;
- }
-
- /* For innermost leaf function, there might not be a offset_r18 */
- if (!*pprev_pc && (offset_r18 == 0))
- return -EINVAL;
-
- *pprev_fp = *(unsigned long *)(fp_prev + offset_r14);
-
- if (offset_r18)
- *pprev_pc = *(unsigned long *)(fp_prev + offset_r18);
-
- *pprev_pc &= ~1;
-
- return 0;
-}
-
-/* Don't put this on the stack since we'll want to call sh64_unwind
- * when we're close to underflowing the stack anyway. */
-static struct pt_regs here_regs;
-
-extern const char syscall_ret;
-extern const char ret_from_syscall;
-extern const char ret_from_exception;
-extern const char ret_from_irq;
-
-static void sh64_unwind_inner(struct pt_regs *regs);
-
-static void unwind_nested (unsigned long pc, unsigned long fp)
-{
- if ((fp >= __MEMORY_START) &&
- ((fp & 7) == 0)) {
- sh64_unwind_inner((struct pt_regs *) fp);
- }
-}
-
-static void sh64_unwind_inner(struct pt_regs *regs)
-{
- unsigned long pc, fp;
- int ofs = 0;
- int first_pass;
-
- pc = regs->pc & ~1;
- fp = regs->regs[14];
-
- first_pass = 1;
- for (;;) {
- int cond;
- unsigned long next_fp, next_pc;
-
- if (pc == ((unsigned long) &syscall_ret & ~1)) {
- printk("SYSCALL\n");
- unwind_nested(pc,fp);
- return;
- }
-
- if (pc == ((unsigned long) &ret_from_syscall & ~1)) {
- printk("SYSCALL (PREEMPTED)\n");
- unwind_nested(pc,fp);
- return;
- }
-
- /* In this case, the PC is discovered by lookup_prev_stack_frame but
- it has 4 taken off it to look like the 'caller' */
- if (pc == ((unsigned long) &ret_from_exception & ~1)) {
- printk("EXCEPTION\n");
- unwind_nested(pc,fp);
- return;
- }
-
- if (pc == ((unsigned long) &ret_from_irq & ~1)) {
- printk("IRQ\n");
- unwind_nested(pc,fp);
- return;
- }
-
- cond = ((pc >= __MEMORY_START) && (fp >= __MEMORY_START) &&
- ((pc & 3) == 0) && ((fp & 7) == 0));
-
- pc -= ofs;
-
- printk("[<%08lx>] ", pc);
- print_symbol("%s\n", pc);
-
- if (first_pass) {
- /* If the innermost frame is a leaf function, it's
- * possible that r18 is never saved out to the stack.
- */
- next_pc = regs->regs[18];
- } else {
- next_pc = 0;
- }
-
- if (lookup_prev_stack_frame(fp, pc, &next_fp, &next_pc, regs) == 0) {
- ofs = sizeof(unsigned long);
- pc = next_pc & ~1;
- fp = next_fp;
- } else {
- printk("Unable to lookup previous stack frame\n");
- break;
- }
- first_pass = 0;
- }
-
- printk("\n");
-
-}
-
-void sh64_unwind(struct pt_regs *regs)
-{
- if (!regs) {
- /*
- * Fetch current regs if we have no other saved state to back
- * trace from.
- */
- regs = &here_regs;
-
- __asm__ __volatile__ ("ori r14, 0, %0" : "=r" (regs->regs[14]));
- __asm__ __volatile__ ("ori r15, 0, %0" : "=r" (regs->regs[15]));
- __asm__ __volatile__ ("ori r18, 0, %0" : "=r" (regs->regs[18]));
-
- __asm__ __volatile__ ("gettr tr0, %0" : "=r" (regs->tregs[0]));
- __asm__ __volatile__ ("gettr tr1, %0" : "=r" (regs->tregs[1]));
- __asm__ __volatile__ ("gettr tr2, %0" : "=r" (regs->tregs[2]));
- __asm__ __volatile__ ("gettr tr3, %0" : "=r" (regs->tregs[3]));
- __asm__ __volatile__ ("gettr tr4, %0" : "=r" (regs->tregs[4]));
- __asm__ __volatile__ ("gettr tr5, %0" : "=r" (regs->tregs[5]));
- __asm__ __volatile__ ("gettr tr6, %0" : "=r" (regs->tregs[6]));
- __asm__ __volatile__ ("gettr tr7, %0" : "=r" (regs->tregs[7]));
-
- __asm__ __volatile__ (
- "pta 0f, tr0\n\t"
- "blink tr0, %0\n\t"
- "0: nop"
- : "=r" (regs->pc)
- );
- }
-
- printk("\nCall Trace:\n");
- sh64_unwind_inner(regs);
-}
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh5/vmlinux.lds.S
- *
- * ld script to make ST50 Linux kernel
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * benedict.gaster@superh.com: 2nd May 2002
- * Add definition of empty_zero_page to be the first page of kernel image.
- *
- * benedict.gaster@superh.com: 3rd May 2002
- * Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org: 9th May 2003
- * Kill off GLOBAL_NAME() usage and other CDC-isms.
- *
- * lethal@linux-sh.org: 19th May 2003
- * Remove support for ancient toolchains.
- */
-
-#include <linux/config.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/processor.h>
-#include <asm/thread_info.h>
-
-#define LOAD_OFFSET CONFIG_CACHED_MEMORY_OFFSET
-#include <asm-generic/vmlinux.lds.h>
-
-#ifdef NOTDEF
-#ifdef CONFIG_LITTLE_ENDIAN
-OUTPUT_FORMAT("elf32-sh64l-linux", "elf32-sh64l-linux", "elf32-sh64l-linux")
-#else
-OUTPUT_FORMAT("elf32-sh64", "elf32-sh64", "elf32-sh64")
-#endif
-#endif
-
-OUTPUT_ARCH(sh:sh5)
-
-#define C_PHYS(x) AT (ADDR(x) - LOAD_OFFSET)
-
-ENTRY(__start)
-SECTIONS
-{
- . = CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
- _text = .; /* Text and read-only data */
- text = .; /* Text and read-only data */
-
- .empty_zero_page : C_PHYS(.empty_zero_page) {
- *(.empty_zero_page)
- } = 0
-
- .text : C_PHYS(.text) {
- *(.text)
- *(.text64)
- *(.text..SHmedia32)
- SCHED_TEXT
- *(.fixup)
- *(.gnu.warning)
-#ifdef CONFIG_LITTLE_ENDIAN
- } = 0x6ff0fff0
-#else
- } = 0xf0fff06f
-#endif
-
- /* We likely want __ex_table to be Cache Line aligned */
- . = ALIGN(L1_CACHE_BYTES); /* Exception table */
- __start___ex_table = .;
- __ex_table : C_PHYS(__ex_table) { *(__ex_table) }
- __stop___ex_table = .;
-
- RODATA
-
- _etext = .; /* End of text section */
-
- .data : C_PHYS(.data) { /* Data */
- *(.data)
- CONSTRUCTORS
- }
-
- . = ALIGN(PAGE_SIZE);
- .data.page_aligned : C_PHYS(.data.page_aligned) { *(.data.page_aligned) }
-
- . = ALIGN(L1_CACHE_BYTES);
- __per_cpu_start = .;
- .data.percpu : C_PHYS(.data.percpu) { *(.data.percpu) }
- __per_cpu_end = . ;
- .data.cacheline_aligned : C_PHYS(.data.cacheline_aligned) { *(.data.cacheline_aligned) }
-
- _edata = .; /* End of data section */
-
- . = ALIGN(THREAD_SIZE); /* init_task: structure size aligned */
- .data.init_task : C_PHYS(.data.init_task) { *(.data.init_task) }
-
- . = ALIGN(PAGE_SIZE); /* Init code and data */
- __init_begin = .;
- _sinittext = .;
- .init.text : C_PHYS(.init.text) { *(.init.text) }
- _einittext = .;
- .init.data : C_PHYS(.init.data) { *(.init.data) }
- . = ALIGN(L1_CACHE_BYTES); /* Better if Cache Line aligned */
- __setup_start = .;
- .init.setup : C_PHYS(.init.setup) { *(.init.setup) }
- __setup_end = .;
- __start___param = .;
- __param : C_PHYS(__param) { *(__param) }
- __stop___param = .;
- __initcall_start = .;
- .initcall.init : C_PHYS(.initcall.init) {
- *(.initcall1.init)
- *(.initcall2.init)
- *(.initcall3.init)
- *(.initcall4.init)
- *(.initcall5.init)
- *(.initcall6.init)
- *(.initcall7.init)
- }
- __initcall_end = .;
- __con_initcall_start = .;
- .con_initcall.init : C_PHYS(.con_initcall.init) { *(.con_initcall.init) }
- __con_initcall_end = .;
- SECURITY_INIT
- __initramfs_start = .;
- .init.ramfs : C_PHYS(.init.ramfs) { *(.init.ramfs) }
- __initramfs_end = .;
- . = ALIGN(PAGE_SIZE);
- __init_end = .;
-
- /* Align to the biggest single data representation, head and tail */
- . = ALIGN(8);
- __bss_start = .; /* BSS */
- .bss : C_PHYS(.bss) {
- *(.bss)
- }
- . = ALIGN(8);
- _end = . ;
-
- /* Sections to be discarded */
- /DISCARD/ : {
- *(.exit.text)
- *(.exit.data)
- *(.exitcall.exit)
- }
-
- /* Stabs debugging sections. */
- .stab 0 : C_PHYS(.stab) { *(.stab) }
- .stabstr 0 : C_PHYS(.stabstr) { *(.stabstr) }
- .stab.excl 0 : C_PHYS(.stab.excl) { *(.stab.excl) }
- .stab.exclstr 0 : C_PHYS(.stab.exclstr) { *(.stab.exclstr) }
- .stab.index 0 : C_PHYS(.stab.index) { *(.stab.index) }
- .stab.indexstr 0 : C_PHYS(.stab.indexstr) { *(.stab.indexstr) }
- .comment 0 : C_PHYS(.comment) { *(.comment) }
- /* DWARF debug sections.
- Symbols in the DWARF debugging section are relative to the beginning
- of the section so we begin .debug at 0. */
- /* DWARF 1 */
- .debug 0 : C_PHYS(.debug) { *(.debug) }
- .line 0 : C_PHYS(.line) { *(.line) }
- /* GNU DWARF 1 extensions */
- .debug_srcinfo 0 : C_PHYS(.debug_srcinfo) { *(.debug_srcinfo) }
- .debug_sfnames 0 : C_PHYS(.debug_sfnames) { *(.debug_sfnames) }
- /* DWARF 1.1 and DWARF 2 */
- .debug_aranges 0 : C_PHYS(.debug_aranges) { *(.debug_aranges) }
- .debug_pubnames 0 : C_PHYS(.debug_pubnames) { *(.debug_pubnames) }
- /* DWARF 2 */
- .debug_info 0 : C_PHYS(.debug_info) { *(.debug_info) }
- .debug_abbrev 0 : C_PHYS(.debug_abbrev) { *(.debug_abbrev) }
- .debug_line 0 : C_PHYS(.debug_line) { *(.debug_line) }
- .debug_frame 0 : C_PHYS(.debug_frame) { *(.debug_frame) }
- .debug_str 0 : C_PHYS(.debug_str) { *(.debug_str) }
- .debug_loc 0 : C_PHYS(.debug_loc) { *(.debug_loc) }
- .debug_macinfo 0 : C_PHYS(.debug_macinfo) { *(.debug_macinfo) }
- /* SGI/MIPS DWARF 2 extensions */
- .debug_weaknames 0 : C_PHYS(.debug_weaknames) { *(.debug_weaknames) }
- .debug_funcnames 0 : C_PHYS(.debug_funcnames) { *(.debug_funcnames) }
- .debug_typenames 0 : C_PHYS(.debug_typenames) { *(.debug_typenames) }
- .debug_varnames 0 : C_PHYS(.debug_varnames) { *(.debug_varnames) }
- /* These must appear regardless of . */
-}
+++ /dev/null
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001 Paolo Alberelli
-# Coprygith (C) 2003 Paul Mundt
-#
-# Makefile for the SH-5 specific library files..
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-# Panic should really be compiled as PIC
-lib-y := udelay.o c-checksum.o dbg.o io.o panic.o memcpy.o copy_user_memcpy.o \
- page_copy.o page_clear.o
-
+++ /dev/null
-/*
- * arch/sh/lib/csum_parial.c
- *
- * This file contains network checksum routines that are better done
- * in an architecture-specific manner due to speed..
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <asm/byteorder.h>
-#include <asm/uaccess.h>
-
-static inline unsigned short from64to16(unsigned long long x)
-{
- /* add up 32-bit words for 33 bits */
- x = (x & 0xffffffff) + (x >> 32);
- /* add up 16-bit and 17-bit words for 17+c bits */
- x = (x & 0xffff) + (x >> 16);
- /* add up 16-bit and 2-bit for 16+c bit */
- x = (x & 0xffff) + (x >> 16);
- /* add up carry.. */
- x = (x & 0xffff) + (x >> 16);
- return x;
-}
-
-static inline unsigned short foldto16(unsigned long x)
-{
- /* add up 16-bit for 17 bits */
- x = (x & 0xffff) + (x >> 16);
- /* add up carry.. */
- x = (x & 0xffff) + (x >> 16);
- return x;
-}
-
-static inline unsigned short myfoldto16(unsigned long long x)
-{
- /* Fold down to 32-bits so we don't loose in the typedef-less
- network stack. */
- /* 64 to 33 */
- x = (x & 0xffffffff) + (x >> 32);
- /* 33 to 32 */
- x = (x & 0xffffffff) + (x >> 32);
-
- /* add up 16-bit for 17 bits */
- x = (x & 0xffff) + (x >> 16);
- /* add up carry.. */
- x = (x & 0xffff) + (x >> 16);
- return x;
-}
-
-#define odd(x) ((x)&1)
-#define U16(x) ntohs(x)
-
-static unsigned long do_csum(const unsigned char *buff, int len)
-{
- int odd, count;
- unsigned long result = 0;
-
- pr_debug("do_csum buff %p, len %d (0x%x)\n", buff, len, len);
-#ifdef DEBUG
- for (i = 0; i < len; i++) {
- if ((i % 26) == 0)
- printk("\n");
- printk("%02X ", buff[i]);
- }
-#endif
-
- if (len <= 0)
- goto out;
-
- odd = 1 & (unsigned long) buff;
- if (odd) {
- result = *buff << 8;
- len--;
- buff++;
- }
- count = len >> 1; /* nr of 16-bit words.. */
- if (count) {
- if (2 & (unsigned long) buff) {
- result += *(unsigned short *) buff;
- count--;
- len -= 2;
- buff += 2;
- }
- count >>= 1; /* nr of 32-bit words.. */
- if (count) {
- unsigned long carry = 0;
- do {
- unsigned long w = *(unsigned long *) buff;
- buff += 4;
- count--;
- result += carry;
- result += w;
- carry = (w > result);
- } while (count);
- result += carry;
- result = (result & 0xffff) + (result >> 16);
- }
- if (len & 2) {
- result += *(unsigned short *) buff;
- buff += 2;
- }
- }
- if (len & 1)
- result += *buff;
- result = foldto16(result);
- if (odd)
- result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
-
- pr_debug("\nCHECKSUM is 0x%x\n", result);
-
- out:
- return result;
-}
-
-/* computes the checksum of a memory block at buff, length len,
- and adds in "sum" (32-bit) */
-unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum)
-{
- unsigned long long result = do_csum(buff, len);
-
- /* add in old sum, and carry.. */
- result += sum;
- /* 32+c bits -> 32 bits */
- result = (result & 0xffffffff) + (result >> 32);
-
- pr_debug("csum_partial, buff %p len %d sum 0x%x result=0x%016Lx\n",
- buff, len, sum, result);
-
- return result;
-}
-
-/* Copy while checksumming, otherwise like csum_partial. */
-unsigned int
-csum_partial_copy(const char *src, char *dst, int len, unsigned int sum)
-{
- sum = csum_partial(src, len, sum);
- memcpy(dst, src, len);
-
- return sum;
-}
-
-/* Copy from userspace and compute checksum. If we catch an exception
- then zero the rest of the buffer. */
-unsigned int
-csum_partial_copy_from_user(const char *src, char *dst, int len,
- unsigned int sum, int *err_ptr)
-{
- int missing;
-
- pr_debug
- ("csum_partial_copy_from_user src %p, dest %p, len %d, sum %08x, err_ptr %p\n",
- src, dst, len, sum, err_ptr);
- missing = copy_from_user(dst, src, len);
- pr_debug(" access_ok %d\n", __access_ok((unsigned long) src, len));
- pr_debug(" missing %d\n", missing);
- if (missing) {
- memset(dst + len - missing, 0, missing);
- *err_ptr = -EFAULT;
- }
-
- return csum_partial(dst, len, sum);
-}
-
-/* Copy to userspace and compute checksum. */
-unsigned int
-csum_partial_copy_to_user(const char *src, char *dst, int len,
- unsigned int sum, int *err_ptr)
-{
- sum = csum_partial(src, len, sum);
-
- if (copy_to_user(dst, src, len))
- *err_ptr = -EFAULT;
-
- return sum;
-}
-
-/*
- * This is a version of ip_compute_csum() optimized for IP headers,
- * which always checksum on 4 octet boundaries.
- */
-unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl)
-{
- pr_debug("ip_fast_csum %p,%d\n", iph, ihl);
-
- return ~do_csum(iph, ihl * 4);
-}
-
-unsigned int csum_tcpudp_nofold(unsigned long saddr,
- unsigned long daddr,
- unsigned short len,
- unsigned short proto, unsigned int sum)
-{
- unsigned long long result;
-
- pr_debug("ntohs(0x%x)=0x%x\n", 0xdead, ntohs(0xdead));
- pr_debug("htons(0x%x)=0x%x\n", 0xdead, htons(0xdead));
-
- result = ((unsigned long long) saddr +
- (unsigned long long) daddr +
- (unsigned long long) sum +
- ((unsigned long long) ntohs(len) << 16) +
- ((unsigned long long) proto << 8));
-
- /* Fold down to 32-bits so we don't loose in the typedef-less
- network stack. */
- /* 64 to 33 */
- result = (result & 0xffffffff) + (result >> 32);
- /* 33 to 32 */
- result = (result & 0xffffffff) + (result >> 32);
-
- pr_debug("%s saddr %x daddr %x len %x proto %x sum %x result %08Lx\n",
- __FUNCTION__, saddr, daddr, len, proto, sum, result);
-
- return result;
-}
-
-// Post SIM:
-unsigned int
-csum_partial_copy_nocheck(const char *src, char *dst, int len, unsigned int sum)
-{
- // unsigned dummy;
- pr_debug("csum_partial_copy_nocheck src %p dst %p len %d\n", src, dst,
- len);
-
- return csum_partial_copy(src, dst, len, sum);
-}
+++ /dev/null
-!
-! Fast SH memcpy
-!
-! by Toshiyasu Morita (tm@netcom.com)
-! hacked by J"orn Rernnecke (joern.rennecke@superh.com) ("o for o-umlaut)
-! SH5 code Copyright 2002 SuperH Ltd.
-!
-! Entry: ARG0: destination pointer
-! ARG1: source pointer
-! ARG2: byte count
-!
-! Exit: RESULT: destination pointer
-! any other registers in the range r0-r7: trashed
-!
-! Notes: Usually one wants to do small reads and write a longword, but
-! unfortunately it is difficult in some cases to concatanate bytes
-! into a longword on the SH, so this does a longword read and small
-! writes.
-!
-! This implementation makes two assumptions about how it is called:
-!
-! 1.: If the byte count is nonzero, the address of the last byte to be
-! copied is unsigned greater than the address of the first byte to
-! be copied. This could be easily swapped for a signed comparison,
-! but the algorithm used needs some comparison.
-!
-! 2.: When there are two or three bytes in the last word of an 11-or-more
-! bytes memory chunk to b copied, the rest of the word can be read
-! without side effects.
-! This could be easily changed by increasing the minumum size of
-! a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2,
-! however, this would cost a few extra cyles on average.
-! For SHmedia, the assumption is that any quadword can be read in its
-! enirety if at least one byte is included in the copy.
-
-/* Imported into Linux kernel by Richard Curnow. This is used to implement the
- __copy_user function in the general case, so it has to be a distinct
- function from intra-kernel memcpy to allow for exception fix-ups in the
- event that the user pointer is bad somewhere in the copy (e.g. due to
- running off the end of the vma).
-
- Note, this algorithm will be slightly wasteful in the case where the source
- and destination pointers are equally aligned, because the stlo/sthi pairs
- could then be merged back into single stores. If there are a lot of cache
- misses, this is probably offset by the stall lengths on the preloads.
-
-*/
-
- .section .text..SHmedia32,"ax"
- .little
- .balign 32
- .global copy_user_memcpy
- .global copy_user_memcpy_end
-copy_user_memcpy:
-
-#define LDUAQ(P,O,D0,D1) ldlo.q P,O,D0; ldhi.q P,O+7,D1
-#define STUAQ(P,O,D0,D1) stlo.q P,O,D0; sthi.q P,O+7,D1
-#define LDUAL(P,O,D0,D1) ldlo.l P,O,D0; ldhi.l P,O+3,D1
-#define STUAL(P,O,D0,D1) stlo.l P,O,D0; sthi.l P,O+3,D1
-
- ld.b r3,0,r63
- pta/l Large,tr0
- movi 25,r0
- bgeu/u r4,r0,tr0
- nsb r4,r0
- shlli r0,5,r0
- movi (L1-L0+63*32 + 1) & 0xffff,r1
- sub r1, r0, r0
-L0: ptrel r0,tr0
- add r2,r4,r5
- ptabs r18,tr1
- add r3,r4,r6
- blink tr0,r63
-
-/* Rearranged to make cut2 safe */
- .balign 8
-L4_7: /* 4..7 byte memcpy cntd. */
- stlo.l r2, 0, r0
- or r6, r7, r6
- sthi.l r5, -1, r6
- stlo.l r5, -4, r6
- blink tr1,r63
-
- .balign 8
-L1: /* 0 byte memcpy */
- nop
- blink tr1,r63
- nop
- nop
- nop
- nop
-
-L2_3: /* 2 or 3 byte memcpy cntd. */
- st.b r5,-1,r6
- blink tr1,r63
-
- /* 1 byte memcpy */
- ld.b r3,0,r0
- st.b r2,0,r0
- blink tr1,r63
-
-L8_15: /* 8..15 byte memcpy cntd. */
- stlo.q r2, 0, r0
- or r6, r7, r6
- sthi.q r5, -1, r6
- stlo.q r5, -8, r6
- blink tr1,r63
-
- /* 2 or 3 byte memcpy */
- ld.b r3,0,r0
- ld.b r2,0,r63
- ld.b r3,1,r1
- st.b r2,0,r0
- pta/l L2_3,tr0
- ld.b r6,-1,r6
- st.b r2,1,r1
- blink tr0, r63
-
- /* 4 .. 7 byte memcpy */
- LDUAL (r3, 0, r0, r1)
- pta L4_7, tr0
- ldlo.l r6, -4, r7
- or r0, r1, r0
- sthi.l r2, 3, r0
- ldhi.l r6, -1, r6
- blink tr0, r63
-
- /* 8 .. 15 byte memcpy */
- LDUAQ (r3, 0, r0, r1)
- pta L8_15, tr0
- ldlo.q r6, -8, r7
- or r0, r1, r0
- sthi.q r2, 7, r0
- ldhi.q r6, -1, r6
- blink tr0, r63
-
- /* 16 .. 24 byte memcpy */
- LDUAQ (r3, 0, r0, r1)
- LDUAQ (r3, 8, r8, r9)
- or r0, r1, r0
- sthi.q r2, 7, r0
- or r8, r9, r8
- sthi.q r2, 15, r8
- ldlo.q r6, -8, r7
- ldhi.q r6, -1, r6
- stlo.q r2, 8, r8
- stlo.q r2, 0, r0
- or r6, r7, r6
- sthi.q r5, -1, r6
- stlo.q r5, -8, r6
- blink tr1,r63
-
-Large:
- ld.b r2, 0, r63
- pta/l Loop_ua, tr1
- ori r3, -8, r7
- sub r2, r7, r22
- sub r3, r2, r6
- add r2, r4, r5
- ldlo.q r3, 0, r0
- addi r5, -16, r5
- movi 64+8, r27 ! could subtract r7 from that.
- stlo.q r2, 0, r0
- sthi.q r2, 7, r0
- ldx.q r22, r6, r0
- bgtu/l r27, r4, tr1
-
- addi r5, -48, r27
- pta/l Loop_line, tr0
- addi r6, 64, r36
- addi r6, -24, r19
- addi r6, -16, r20
- addi r6, -8, r21
-
-Loop_line:
- ldx.q r22, r36, r63
- synco
- alloco r22, 32
- synco
- addi r22, 32, r22
- ldx.q r22, r19, r23
- sthi.q r22, -25, r0
- ldx.q r22, r20, r24
- ldx.q r22, r21, r25
- stlo.q r22, -32, r0
- ldx.q r22, r6, r0
- sthi.q r22, -17, r23
- sthi.q r22, -9, r24
- sthi.q r22, -1, r25
- stlo.q r22, -24, r23
- stlo.q r22, -16, r24
- stlo.q r22, -8, r25
- bgeu r27, r22, tr0
-
-Loop_ua:
- addi r22, 8, r22
- sthi.q r22, -1, r0
- stlo.q r22, -8, r0
- ldx.q r22, r6, r0
- bgtu/l r5, r22, tr1
-
- add r3, r4, r7
- ldlo.q r7, -8, r1
- sthi.q r22, 7, r0
- ldhi.q r7, -1, r7
- ptabs r18,tr1
- stlo.q r22, 0, r0
- or r1, r7, r1
- sthi.q r5, 15, r1
- stlo.q r5, 8, r1
- blink tr1, r63
-copy_user_memcpy_end:
- nop
+++ /dev/null
-/*--------------------------------------------------------------------------
---
--- Identity : Linux50 Debug Funcions
---
--- File : arch/sh64/lib/dbg.C
---
--- Copyright 2000, 2001 STMicroelectronics Limited.
--- Copyright 2004 Richard Curnow (evt_debug etc)
---
---------------------------------------------------------------------------*/
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/mmu_context.h>
-
-typedef u64 regType_t;
-
-static regType_t getConfigReg(u64 id)
-{
- register u64 reg __asm__("r2");
- asm volatile ("getcfg %1, 0, %0":"=r" (reg):"r"(id));
- return (reg);
-}
-
-/* ======================================================================= */
-
-static char *szTab[] = { "4k", "64k", "1M", "512M" };
-static char *protTab[] = { "----",
- "---R",
- "--X-",
- "--XR",
- "-W--",
- "-W-R",
- "-WX-",
- "-WXR",
- "U---",
- "U--R",
- "U-X-",
- "U-XR",
- "UW--",
- "UW-R",
- "UWX-",
- "UWXR"
-};
-#define ITLB_BASE 0x00000000
-#define DTLB_BASE 0x00800000
-#define MAX_TLBs 64
-/* PTE High */
-#define GET_VALID(pte) ((pte) & 0x1)
-#define GET_SHARED(pte) ((pte) & 0x2)
-#define GET_ASID(pte) ((pte >> 2) & 0x0ff)
-#define GET_EPN(pte) ((pte) & 0xfffff000)
-
-/* PTE Low */
-#define GET_CBEHAVIOR(pte) ((pte) & 0x3)
-#define GET_PAGE_SIZE(pte) szTab[((pte >> 3) & 0x3)]
-#define GET_PROTECTION(pte) protTab[((pte >> 6) & 0xf)]
-#define GET_PPN(pte) ((pte) & 0xfffff000)
-
-#define PAGE_1K_MASK 0x00000000
-#define PAGE_4K_MASK 0x00000010
-#define PAGE_64K_MASK 0x00000080
-#define MMU_PAGESIZE_MASK (PAGE_64K_MASK | PAGE_4K_MASK)
-#define PAGE_1MB_MASK MMU_PAGESIZE_MASK
-#define PAGE_1K (1024)
-#define PAGE_4K (1024 * 4)
-#define PAGE_64K (1024 * 64)
-#define PAGE_1MB (1024 * 1024)
-
-#define HOW_TO_READ_TLB_CONTENT \
- "[ ID] PPN EPN ASID Share CB P.Size PROT.\n"
-
-void print_single_tlb(unsigned long tlb, int single_print)
-{
- regType_t pteH;
- regType_t pteL;
- unsigned int valid, shared, asid, epn, cb, ppn;
- char *pSize;
- char *pProt;
-
- /*
- ** in case of single print <single_print> is true, this implies:
- ** 1) print the TLB in any case also if NOT VALID
- ** 2) print out the header
- */
-
- pteH = getConfigReg(tlb);
- valid = GET_VALID(pteH);
- if (single_print)
- printk(HOW_TO_READ_TLB_CONTENT);
- else if (!valid)
- return;
-
- pteL = getConfigReg(tlb + 1);
-
- shared = GET_SHARED(pteH);
- asid = GET_ASID(pteH);
- epn = GET_EPN(pteH);
- cb = GET_CBEHAVIOR(pteL);
- pSize = GET_PAGE_SIZE(pteL);
- pProt = GET_PROTECTION(pteL);
- ppn = GET_PPN(pteL);
- printk("[%c%2ld] 0x%08x 0x%08x %03d %02x %02x %4s %s\n",
- ((valid) ? ' ' : 'u'), ((tlb & 0x0ffff) / TLB_STEP),
- ppn, epn, asid, shared, cb, pSize, pProt);
-}
-
-void print_dtlb(void)
-{
- int count;
- unsigned long tlb;
-
- printk(" ================= SH-5 D-TLBs Status ===================\n");
- printk(HOW_TO_READ_TLB_CONTENT);
- tlb = DTLB_BASE;
- for (count = 0; count < MAX_TLBs; count++, tlb += TLB_STEP)
- print_single_tlb(tlb, 0);
- printk
- (" =============================================================\n");
-}
-
-void print_itlb(void)
-{
- int count;
- unsigned long tlb;
-
- printk(" ================= SH-5 I-TLBs Status ===================\n");
- printk(HOW_TO_READ_TLB_CONTENT);
- tlb = ITLB_BASE;
- for (count = 0; count < MAX_TLBs; count++, tlb += TLB_STEP)
- print_single_tlb(tlb, 0);
- printk
- (" =============================================================\n");
-}
-
-/* ======================================================================= */
-
-#include "syscalltab.h"
-
-struct ring_node {
- int evt;
- int ret_addr;
- int event;
- int tra;
- int pid;
- unsigned long sp;
- unsigned long pc;
-};
-
-static struct ring_node event_ring[16];
-static int event_ptr = 0;
-
-void evt_debug(int evt, int ret_addr, int event, int tra, struct pt_regs *regs)
-{
- int syscallno = tra & 0xff;
- unsigned long sp;
- unsigned long stack_bottom;
- int pid;
- struct ring_node *rr;
-
- pid = current->pid;
- stack_bottom = (unsigned long) current->thread_info;
- asm volatile("ori r15, 0, %0" : "=r" (sp));
- rr = event_ring + event_ptr;
- rr->evt = evt;
- rr->ret_addr = ret_addr;
- rr->event = event;
- rr->tra = tra;
- rr->pid = pid;
- rr->sp = sp;
- rr->pc = regs->pc;
-
- if (sp < stack_bottom + 3092) {
- printk("evt_debug : stack underflow report\n");
- int i, j;
- for (j=0, i = event_ptr; j<16; j++) {
- rr = event_ring + i;
- printk("evt=%08x event=%08x tra=%08x pid=%5d sp=%08lx pc=%08lx\n",
- rr->evt, rr->event, rr->tra, rr->pid, rr->sp, rr->pc);
- i--;
- i &= 15;
- }
- panic("STACK UNDERFLOW\n");
- }
-
- event_ptr = (event_ptr + 1) & 15;
-
- if ((event == 2) && (evt == 0x160)) {
- if (syscallno < NUM_SYSCALL_INFO_ENTRIES)
- printk("Task %d: %s()\n",
- current->pid,
- syscall_info_table[syscallno].name);
- }
-}
-
-void evt_debug2(unsigned int ret)
-{
- printk("Task %d: syscall returns %08x\n", current->pid, ret);
-}
-
-void evt_debug_ret_from_irq(struct pt_regs *regs)
-{
- int pid;
- struct ring_node *rr;
-
- pid = current->pid;
- rr = event_ring + event_ptr;
- rr->evt = 0xffff;
- rr->ret_addr = 0;
- rr->event = 0;
- rr->tra = 0;
- rr->pid = pid;
- rr->pc = regs->pc;
- event_ptr = (event_ptr + 1) & 15;
-}
-
-void evt_debug_ret_from_exc(struct pt_regs *regs)
-{
- int pid;
- struct ring_node *rr;
-
- pid = current->pid;
- rr = event_ring + event_ptr;
- rr->evt = 0xfffe;
- rr->ret_addr = 0;
- rr->event = 0;
- rr->tra = 0;
- rr->pid = pid;
- rr->pc = regs->pc;
- event_ptr = (event_ptr + 1) & 15;
-}
-
-/* ======================================================================= */
-
-void show_excp_regs(char *from, int trapnr, int signr, struct pt_regs *regs)
-{
-
- unsigned long long ah, al, bh, bl, ch, cl;
-
- printk("\n");
- printk("EXCEPTION - %s: task %d; Linux trap # %d; signal = %d\n",
- ((from) ? from : "???"), current->pid, trapnr, signr);
-
- asm volatile ("getcon " __EXPEVT ", %0":"=r"(ah));
- asm volatile ("getcon " __EXPEVT ", %0":"=r"(al));
- ah = (ah) >> 32;
- al = (al) & 0xffffffff;
- asm volatile ("getcon " __KCR1 ", %0":"=r"(bh));
- asm volatile ("getcon " __KCR1 ", %0":"=r"(bl));
- bh = (bh) >> 32;
- bl = (bl) & 0xffffffff;
- asm volatile ("getcon " __INTEVT ", %0":"=r"(ch));
- asm volatile ("getcon " __INTEVT ", %0":"=r"(cl));
- ch = (ch) >> 32;
- cl = (cl) & 0xffffffff;
- printk("EXPE: %08Lx%08Lx KCR1: %08Lx%08Lx INTE: %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- asm volatile ("getcon " __PEXPEVT ", %0":"=r"(ah));
- asm volatile ("getcon " __PEXPEVT ", %0":"=r"(al));
- ah = (ah) >> 32;
- al = (al) & 0xffffffff;
- asm volatile ("getcon " __PSPC ", %0":"=r"(bh));
- asm volatile ("getcon " __PSPC ", %0":"=r"(bl));
- bh = (bh) >> 32;
- bl = (bl) & 0xffffffff;
- asm volatile ("getcon " __PSSR ", %0":"=r"(ch));
- asm volatile ("getcon " __PSSR ", %0":"=r"(cl));
- ch = (ch) >> 32;
- cl = (cl) & 0xffffffff;
- printk("PEXP: %08Lx%08Lx PSPC: %08Lx%08Lx PSSR: %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->pc) >> 32;
- al = (regs->pc) & 0xffffffff;
- bh = (regs->regs[18]) >> 32;
- bl = (regs->regs[18]) & 0xffffffff;
- ch = (regs->regs[15]) >> 32;
- cl = (regs->regs[15]) & 0xffffffff;
- printk("PC : %08Lx%08Lx LINK: %08Lx%08Lx SP : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->sr) >> 32;
- al = (regs->sr) & 0xffffffff;
- asm volatile ("getcon " __TEA ", %0":"=r"(bh));
- asm volatile ("getcon " __TEA ", %0":"=r"(bl));
- bh = (bh) >> 32;
- bl = (bl) & 0xffffffff;
- asm volatile ("getcon " __KCR0 ", %0":"=r"(ch));
- asm volatile ("getcon " __KCR0 ", %0":"=r"(cl));
- ch = (ch) >> 32;
- cl = (cl) & 0xffffffff;
- printk("SR : %08Lx%08Lx TEA : %08Lx%08Lx KCR0: %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[0]) >> 32;
- al = (regs->regs[0]) & 0xffffffff;
- bh = (regs->regs[1]) >> 32;
- bl = (regs->regs[1]) & 0xffffffff;
- ch = (regs->regs[2]) >> 32;
- cl = (regs->regs[2]) & 0xffffffff;
- printk("R0 : %08Lx%08Lx R1 : %08Lx%08Lx R2 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[3]) >> 32;
- al = (regs->regs[3]) & 0xffffffff;
- bh = (regs->regs[4]) >> 32;
- bl = (regs->regs[4]) & 0xffffffff;
- ch = (regs->regs[5]) >> 32;
- cl = (regs->regs[5]) & 0xffffffff;
- printk("R3 : %08Lx%08Lx R4 : %08Lx%08Lx R5 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[6]) >> 32;
- al = (regs->regs[6]) & 0xffffffff;
- bh = (regs->regs[7]) >> 32;
- bl = (regs->regs[7]) & 0xffffffff;
- ch = (regs->regs[8]) >> 32;
- cl = (regs->regs[8]) & 0xffffffff;
- printk("R6 : %08Lx%08Lx R7 : %08Lx%08Lx R8 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[9]) >> 32;
- al = (regs->regs[9]) & 0xffffffff;
- bh = (regs->regs[10]) >> 32;
- bl = (regs->regs[10]) & 0xffffffff;
- ch = (regs->regs[11]) >> 32;
- cl = (regs->regs[11]) & 0xffffffff;
- printk("R9 : %08Lx%08Lx R10 : %08Lx%08Lx R11 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
- printk("....\n");
-
- ah = (regs->tregs[0]) >> 32;
- al = (regs->tregs[0]) & 0xffffffff;
- bh = (regs->tregs[1]) >> 32;
- bl = (regs->tregs[1]) & 0xffffffff;
- ch = (regs->tregs[2]) >> 32;
- cl = (regs->tregs[2]) & 0xffffffff;
- printk("T0 : %08Lx%08Lx T1 : %08Lx%08Lx T2 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
- printk("....\n");
-
- print_dtlb();
- print_itlb();
-}
-
-/* ======================================================================= */
-
-/*
-** Depending on <base> scan the MMU, Data or Instrction side
-** looking for a valid mapping matching Eaddr & asid.
-** Return -1 if not found or the TLB id entry otherwise.
-** Note: it works only for 4k pages!
-*/
-static unsigned long
-lookup_mmu_side(unsigned long base, unsigned long Eaddr, unsigned long asid)
-{
- regType_t pteH;
- unsigned long epn;
- int count;
-
- epn = Eaddr & 0xfffff000;
-
- for (count = 0; count < MAX_TLBs; count++, base += TLB_STEP) {
- pteH = getConfigReg(base);
- if (GET_VALID(pteH))
- if ((unsigned long) GET_EPN(pteH) == epn)
- if ((unsigned long) GET_ASID(pteH) == asid)
- break;
- }
- return ((unsigned long) ((count < MAX_TLBs) ? base : -1));
-}
-
-unsigned long lookup_dtlb(unsigned long Eaddr)
-{
- unsigned long asid = get_asid();
- return (lookup_mmu_side((u64) DTLB_BASE, Eaddr, asid));
-}
-
-unsigned long lookup_itlb(unsigned long Eaddr)
-{
- unsigned long asid = get_asid();
- return (lookup_mmu_side((u64) ITLB_BASE, Eaddr, asid));
-}
-
-void print_page(struct page *page)
-{
- printk(" page[%p] -> index 0x%lx, count 0x%x, flags 0x%lx\n",
- page, page->index, page_count(page), page->flags);
- printk(" address_space = %p, pages =%ld\n", page->mapping,
- page->mapping->nrpages);
-
-}
+++ /dev/null
-/*
- * Copyright (C) 2000 David J. Mckay (david.mckay@st.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * This file contains the I/O routines for use on the overdrive board
- *
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#ifdef CONFIG_SH_CAYMAN
-#include <asm/cayman.h>
-#endif
-
-/*
- * readX/writeX() are used to access memory mapped devices. On some
- * architectures the memory mapped IO stuff needs to be accessed
- * differently. On the SuperH architecture, we just read/write the
- * memory location directly.
- */
-
-#define dprintk(x...)
-
-static int io_addr(int x) {
- if (x < 0x400) {
-#ifdef CONFIG_SH_CAYMAN
- return (x << 2) | smsc_superio_virt;
-#else
- panic ("Illegal access to I/O port 0x%04x\n", x);
- return 0;
-#endif
- } else {
-#ifdef CONFIG_PCI
- return (x + pciio_virt);
-#else
- panic ("Illegal access to I/O port 0x%04x\n", x);
- return 0;
-#endif
- }
-}
-
-unsigned long inb(unsigned long port)
-{
- unsigned long r;
-
- r = ctrl_inb(io_addr(port));
- dprintk("inb(0x%x)=0x%x (0x%x)\n", port, r, io_addr(port));
- return r;
-}
-
-unsigned long inw(unsigned long port)
-{
- unsigned long r;
-
- r = ctrl_inw(io_addr(port));
- dprintk("inw(0x%x)=0x%x (0x%x)\n", port, r, io_addr(port));
- return r;
-}
-
-unsigned long inl(unsigned long port)
-{
- unsigned long r;
-
- r = ctrl_inl(io_addr(port));
- dprintk("inl(0x%x)=0x%x (0x%x)\n", port, r, io_addr(port));
- return r;
-}
-
-void outb(unsigned long value, unsigned long port)
-{
- dprintk("outb(0x%x,0x%x) (0x%x)\n", value, port, io_addr(port));
- ctrl_outb(value, io_addr(port));
-}
-
-void outw(unsigned long value, unsigned long port)
-{
- dprintk("outw(0x%x,0x%x) (0x%x)\n", value, port, io_addr(port));
- ctrl_outw(value, io_addr(port));
-}
-
-void outl(unsigned long value, unsigned long port)
-{
- dprintk("outw(0x%x,0x%x) (0x%x)\n", value, port, io_addr(port));
- ctrl_outl(value, io_addr(port));
-}
-
-/* This is horrible at the moment - needs more work to do something sensible */
-#define IO_DELAY()
-
-#define OUT_DELAY(x,type) \
-void out##x##_p(unsigned type value,unsigned long port){out##x(value,port);IO_DELAY();}
-
-#define IN_DELAY(x,type) \
-unsigned type in##x##_p(unsigned long port) {unsigned type tmp=in##x(port);IO_DELAY();return tmp;}
-
-#if 1
-OUT_DELAY(b, long) OUT_DELAY(w, long) OUT_DELAY(l, long)
- IN_DELAY(b, long) IN_DELAY(w, long) IN_DELAY(l, long)
-#endif
-/* Now for the string version of these functions */
-void outsb(unsigned long port, const void *addr, unsigned long count)
-{
- int i;
- unsigned char *p = (unsigned char *) addr;
-
- for (i = 0; i < count; i++, p++) {
- outb(*p, port);
- }
-}
-
-void insb(unsigned long port, void *addr, unsigned long count)
-{
- int i;
- unsigned char *p = (unsigned char *) addr;
-
- for (i = 0; i < count; i++, p++) {
- *p = inb(port);
- }
-}
-
-/* For the 16 and 32 bit string functions, we have to worry about alignment.
- * The SH does not do unaligned accesses, so we have to read as bytes and
- * then write as a word or dword.
- * This can be optimised a lot more, especially in the case where the data
- * is aligned
- */
-
-void outsw(unsigned long port, const void *addr, unsigned long count)
-{
- int i;
- unsigned short tmp;
- unsigned char *p = (unsigned char *) addr;
-
- for (i = 0; i < count; i++, p += 2) {
- tmp = (*p) | ((*(p + 1)) << 8);
- outw(tmp, port);
- }
-}
-
-void insw(unsigned long port, void *addr, unsigned long count)
-{
- int i;
- unsigned short tmp;
- unsigned char *p = (unsigned char *) addr;
-
- for (i = 0; i < count; i++, p += 2) {
- tmp = inw(port);
- p[0] = tmp & 0xff;
- p[1] = (tmp >> 8) & 0xff;
- }
-}
-
-void outsl(unsigned long port, const void *addr, unsigned long count)
-{
- int i;
- unsigned tmp;
- unsigned char *p = (unsigned char *) addr;
-
- for (i = 0; i < count; i++, p += 4) {
- tmp = (*p) | ((*(p + 1)) << 8) | ((*(p + 2)) << 16) |
- ((*(p + 3)) << 24);
- outl(tmp, port);
- }
-}
-
-void insl(unsigned long port, void *addr, unsigned long count)
-{
- int i;
- unsigned tmp;
- unsigned char *p = (unsigned char *) addr;
-
- for (i = 0; i < count; i++, p += 4) {
- tmp = inl(port);
- p[0] = tmp & 0xff;
- p[1] = (tmp >> 8) & 0xff;
- p[2] = (tmp >> 16) & 0xff;
- p[3] = (tmp >> 24) & 0xff;
-
- }
-}
-
-void memcpy_toio(unsigned long to, const void *from, long count)
-{
- unsigned char *p = (unsigned char *) from;
-
- while (count) {
- count--;
- writeb(*p++, to++);
- }
-}
-
-void memcpy_fromio(void *to, unsigned long from, long count)
-{
- int i;
- unsigned char *p = (unsigned char *) to;
-
- for (i = 0; i < count; i++) {
- p[i] = readb(from);
- from++;
- }
-}
+++ /dev/null
-/*
- * Copyright (C) 2002 Mark Debbage (Mark.Debbage@superh.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <asm/string.h>
-
-// This is a simplistic optimization of memcpy to increase the
-// granularity of access beyond one byte using aligned
-// loads and stores. This is not an optimal implementation
-// for SH-5 (especially with regard to prefetching and the cache),
-// and a better version should be provided later ...
-
-void *memcpy(void *dest, const void *src, size_t count)
-{
- char *d = (char *) dest, *s = (char *) src;
-
- if (count >= 32) {
- int i = 8 - (((unsigned long) d) & 0x7);
-
- if (i != 8)
- while (i-- && count--) {
- *d++ = *s++;
- }
-
- if (((((unsigned long) d) & 0x7) == 0) &&
- ((((unsigned long) s) & 0x7) == 0)) {
- while (count >= 32) {
- unsigned long long t1, t2, t3, t4;
- t1 = *(unsigned long long *) (s);
- t2 = *(unsigned long long *) (s + 8);
- t3 = *(unsigned long long *) (s + 16);
- t4 = *(unsigned long long *) (s + 24);
- *(unsigned long long *) (d) = t1;
- *(unsigned long long *) (d + 8) = t2;
- *(unsigned long long *) (d + 16) = t3;
- *(unsigned long long *) (d + 24) = t4;
- d += 32;
- s += 32;
- count -= 32;
- }
- while (count >= 8) {
- *(unsigned long long *) d =
- *(unsigned long long *) s;
- d += 8;
- s += 8;
- count -= 8;
- }
- }
-
- if (((((unsigned long) d) & 0x3) == 0) &&
- ((((unsigned long) s) & 0x3) == 0)) {
- while (count >= 4) {
- *(unsigned long *) d = *(unsigned long *) s;
- d += 4;
- s += 4;
- count -= 4;
- }
- }
-
- if (((((unsigned long) d) & 0x1) == 0) &&
- ((((unsigned long) s) & 0x1) == 0)) {
- while (count >= 2) {
- *(unsigned short *) d = *(unsigned short *) s;
- d += 2;
- s += 2;
- count -= 2;
- }
- }
- }
-
- while (count--) {
- *d++ = *s++;
- }
-
- return d;
-}
+++ /dev/null
-/*
- * FIXME: old compatibility stuff, will be removed soon.
- */
-
-#include <net/checksum.h>
-
-unsigned int csum_partial_copy( const char *src, char *dst, int len, int sum)
-{
- int src_err=0, dst_err=0;
-
- sum = csum_partial_copy_generic ( src, dst, len, sum, &src_err, &dst_err);
-
- if (src_err || dst_err)
- printk("old csum_partial_copy_fromuser(), tell mingo to convert me.\n");
-
- return sum;
-}
+++ /dev/null
-/*
- Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
-
- This file is subject to the terms and conditions of the GNU General Public
- License. See the file "COPYING" in the main directory of this archive
- for more details.
-
- Tight version of memset for the case of just clearing a page. It turns out
- that having the alloco's spaced out slightly due to the increment/branch
- pair causes them to contend less for access to the cache. Similarly,
- keeping the stores apart from the allocos causes less contention. => Do two
- separate loops. Do multiple stores per loop to amortise the
- increment/branch cost a little.
-
- Parameters:
- r2 : source effective address (start of page)
-
- Always clears 4096 bytes.
-
-*/
-
- .section .text..SHmedia32,"ax"
- .little
-
- .balign 8
- .global sh64_page_clear
-sh64_page_clear:
- pta/l 1f, tr1
- pta/l 2f, tr2
- ptabs/l r18, tr0
-
- movi 4096, r7
- add r2, r7, r7
- add r2, r63, r6
-1:
- alloco r6, 0
- addi r6, 32, r6
- bgt/l r7, r6, tr1
-
- add r2, r63, r6
-2:
- st.q r6, 0, r63
- st.q r6, 8, r63
- st.q r6, 16, r63
- st.q r6, 24, r63
- addi r6, 32, r6
- bgt/l r7, r6, tr2
-
- blink tr0, r63
-
-
+++ /dev/null
-/*
- Copyright 2003 Richard Curnow, SuperH (UK) Ltd.
-
- This file is subject to the terms and conditions of the GNU General Public
- License. See the file "COPYING" in the main directory of this archive
- for more details.
-
- Tight version of mempy for the case of just copying a page.
- Prefetch strategy empirically optimised against RTL simulations
- of SH5-101 cut2 eval chip with Cayman board DDR memory.
-
- Parameters:
- r2 : source effective address (start of page)
- r3 : destination effective address (start of page)
-
- Always copies 4096 bytes.
-
- Points to review.
- * Currently the prefetch is 4 lines ahead and the alloco is 2 lines ahead.
- It seems like the prefetch needs to be at at least 4 lines ahead to get
- the data into the cache in time, and the allocos contend with outstanding
- prefetches for the same cache set, so it's better to have the numbers
- different.
- */
-
- .section .text..SHmedia32,"ax"
- .little
-
- .balign 8
- .global sh64_page_copy
-sh64_page_copy:
-
- /* Copy 4096 bytes worth of data from r2 to r3.
- Do prefetches 4 lines ahead.
- Do alloco 2 lines ahead */
-
- pta 1f, tr1
- pta 2f, tr2
- pta 3f, tr3
- ptabs r18, tr0
-
- ld.q r2, 0x00, r63
- ld.q r2, 0x20, r63
- ld.q r2, 0x40, r63
- ld.q r2, 0x60, r63
- alloco r3, 0x00
- alloco r3, 0x20
-
- movi 3968, r6
- add r3, r6, r6
- addi r6, 64, r7
- addi r7, 64, r8
- sub r2, r3, r60
- addi r60, 8, r61
- addi r61, 8, r62
- addi r62, 8, r23
- addi r60, 0x80, r22
-
-/* Minimal code size. The extra branches inside the loop don't cost much
- because they overlap with the time spent waiting for prefetches to
- complete. */
-1:
- bge/u r3, r6, tr2 ! skip prefetch for last 4 lines
- ldx.q r3, r22, r63 ! prefetch 4 lines hence
-2:
- bge/u r3, r7, tr3 ! skip alloco for last 2 lines
- alloco r3, 0x40 ! alloc destination line 2 lines ahead
-3:
- ldx.q r3, r60, r36
- ldx.q r3, r61, r37
- ldx.q r3, r62, r38
- ldx.q r3, r23, r39
- st.q r3, 0, r36
- st.q r3, 8, r37
- st.q r3, 16, r38
- st.q r3, 24, r39
- addi r3, 32, r3
- bgt/l r8, r3, tr1
-
- blink tr0, r63 ! return
-
-
+++ /dev/null
-/*
- * Copyright (C) 2003 Richard Curnow, SuperH UK Limited
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/kernel.h>
-#include <asm/io.h>
-#include <asm/registers.h>
-
-/* THIS IS A PHYSICAL ADDRESS */
-#define HDSP2534_ADDR (0x04002100)
-
-#ifdef CONFIG_SH_CAYMAN
-
-static void poor_mans_delay(void)
-{
- int i;
- for (i = 0; i < 2500000; i++) {
- } /* poor man's delay */
-}
-
-static void show_value(unsigned long x)
-{
- int i;
- unsigned nibble;
- for (i = 0; i < 8; i++) {
- nibble = ((x >> (i * 4)) & 0xf);
-
- ctrl_outb(nibble + ((nibble > 9) ? 55 : 48),
- HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));
- }
-}
-
-#endif
-
-void
-panic_handler(unsigned long panicPC, unsigned long panicSSR,
- unsigned long panicEXPEVT)
-{
-#ifdef CONFIG_SH_CAYMAN
- while (1) {
- /* This piece of code displays the PC on the LED display */
- show_value(panicPC);
- poor_mans_delay();
- show_value(panicSSR);
- poor_mans_delay();
- show_value(panicEXPEVT);
- poor_mans_delay();
- }
-#endif
-
- /* Never return from the panic handler */
- for (;;) ;
-
-}
+++ /dev/null
-/*
- * arch/sh64/lib/udelay.c
- *
- * Delay routines, using a pre-computed "loops_per_jiffy" value.
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/config.h>
-#include <linux/sched.h>
-#include <asm/param.h>
-
-extern unsigned long loops_per_jiffy;
-
-/*
- * Use only for very small delays (< 1 msec).
- *
- * The active part of our cycle counter is only 32-bits wide, and
- * we're treating the difference between two marks as signed. On
- * a 1GHz box, that's about 2 seconds.
- */
-
-void __delay(int loops)
-{
- long long dummy;
- __asm__ __volatile__("gettr tr0, %1\n\t"
- "pta $+4, tr0\n\t"
- "addi %0, -1, %0\n\t"
- "bne %0, r63, tr0\n\t"
- "ptabs %1, tr0\n\t":"=r"(loops),
- "=r"(dummy)
- :"0"(loops));
-}
-
-void __udelay(unsigned long long usecs, unsigned long lpj)
-{
- usecs *= (((unsigned long long) HZ << 32) / 1000000) * lpj;
- __delay((long long) usecs >> 32);
-}
-
-void __ndelay(unsigned long long nsecs, unsigned long lpj)
-{
- nsecs *= (((unsigned long long) HZ << 32) / 1000000000) * lpj;
- __delay((long long) nsecs >> 32);
-}
-
-void udelay(unsigned long usecs)
-{
- __udelay(usecs, loops_per_jiffy);
-}
-
-void ndelay(unsigned long nsecs)
-{
- __ndelay(nsecs, loops_per_jiffy);
-}
-
+++ /dev/null
-#
-# Makefile for the Hitachi Cayman specific parts of the kernel
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-obj-y := setup.o irq.o
-obj-$(CONFIG_HEARTBEAT) += led.o
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq_cayman.c
- *
- * SH-5 Cayman Interrupt Support
- *
- * This file handles the board specific parts of the Cayman interrupt system
- *
- * Copyright (C) 2002 Stuart Menefy
- */
-
-#include <linux/config.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/io.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/signal.h>
-#include <asm/cayman.h>
-
-unsigned long epld_virt;
-
-#define EPLD_BASE 0x04002000
-#define EPLD_STATUS_BASE (epld_virt + 0x10)
-#define EPLD_MASK_BASE (epld_virt + 0x20)
-
-/* Note the SMSC SuperIO chip and SMSC LAN chip interrupts are all muxed onto
- the same SH-5 interrupt */
-
-static irqreturn_t cayman_interrupt_smsc(int irq, void *dev_id, struct pt_regs *regs)
-{
- printk(KERN_INFO "CAYMAN: spurious SMSC interrupt\n");
- return IRQ_NONE;
-}
-
-static irqreturn_t cayman_interrupt_pci2(int irq, void *dev_id, struct pt_regs *regs)
-{
- printk(KERN_INFO "CAYMAN: spurious PCI interrupt, IRQ %d\n", irq);
- return IRQ_NONE;
-}
-
-static struct irqaction cayman_action_smsc = {
- .name = "Cayman SMSC Mux",
- .handler = cayman_interrupt_smsc,
- .flags = SA_INTERRUPT,
-};
-
-static struct irqaction cayman_action_pci2 = {
- .name = "Cayman PCI2 Mux",
- .handler = cayman_interrupt_pci2,
- .flags = SA_INTERRUPT,
-};
-
-static void enable_cayman_irq(unsigned int irq)
-{
- unsigned long flags;
- unsigned long mask;
- unsigned int reg;
- unsigned char bit;
-
- irq -= START_EXT_IRQS;
- reg = EPLD_MASK_BASE + ((irq / 8) << 2);
- bit = 1<<(irq % 8);
- save_and_cli(flags);
- mask = ctrl_inl(reg);
- mask |= bit;
- ctrl_outl(mask, reg);
- restore_flags(flags);
-}
-
-void disable_cayman_irq(unsigned int irq)
-{
- unsigned long flags;
- unsigned long mask;
- unsigned int reg;
- unsigned char bit;
-
- irq -= START_EXT_IRQS;
- reg = EPLD_MASK_BASE + ((irq / 8) << 2);
- bit = 1<<(irq % 8);
- save_and_cli(flags);
- mask = ctrl_inl(reg);
- mask &= ~bit;
- ctrl_outl(mask, reg);
- restore_flags(flags);
-}
-
-static void ack_cayman_irq(unsigned int irq)
-{
- disable_cayman_irq(irq);
-}
-
-static void end_cayman_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_cayman_irq(irq);
-}
-
-static unsigned int startup_cayman_irq(unsigned int irq)
-{
- enable_cayman_irq(irq);
- return 0; /* never anything pending */
-}
-
-static void shutdown_cayman_irq(unsigned int irq)
-{
- disable_cayman_irq(irq);
-}
-
-struct hw_interrupt_type cayman_irq_type = {
- .typename = "Cayman-IRQ",
- .startup = startup_cayman_irq,
- .shutdown = shutdown_cayman_irq,
- .enable = enable_cayman_irq,
- .disable = disable_cayman_irq,
- .ack = ack_cayman_irq,
- .end = end_cayman_irq,
-};
-
-int cayman_irq_demux(int evt)
-{
- int irq = intc_evt_to_irq[evt];
-
- if (irq == SMSC_IRQ) {
- unsigned long status;
- int i;
-
- status = ctrl_inl(EPLD_STATUS_BASE) &
- ctrl_inl(EPLD_MASK_BASE) & 0xff;
- if (status == 0) {
- irq = -1;
- } else {
- for (i=0; i<8; i++) {
- if (status & (1<<i))
- break;
- }
- irq = START_EXT_IRQS + i;
- }
- }
-
- if (irq == PCI2_IRQ) {
- unsigned long status;
- int i;
-
- status = ctrl_inl(EPLD_STATUS_BASE + 3 * sizeof(u32)) &
- ctrl_inl(EPLD_MASK_BASE + 3 * sizeof(u32)) & 0xff;
- if (status == 0) {
- irq = -1;
- } else {
- for (i=0; i<8; i++) {
- if (status & (1<<i))
- break;
- }
- irq = START_EXT_IRQS + (3 * 8) + i;
- }
- }
-
- return irq;
-}
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
-int cayman_irq_describe(char* p, int irq)
-{
- if (irq < NR_INTC_IRQS) {
- return intc_irq_describe(p, irq);
- } else if (irq < NR_INTC_IRQS + 8) {
- return sprintf(p, "(SMSC %d)", irq - NR_INTC_IRQS);
- } else if ((irq >= NR_INTC_IRQS + 24) && (irq < NR_INTC_IRQS + 32)) {
- return sprintf(p, "(PCI2 %d)", irq - (NR_INTC_IRQS + 24));
- }
-
- return 0;
-}
-#endif
-
-void init_cayman_irq(void)
-{
- int i;
-
- epld_virt = onchip_remap(EPLD_BASE, 1024, "EPLD");
- if (!epld_virt) {
- printk(KERN_ERR "Cayman IRQ: Unable to remap EPLD\n");
- return;
- }
-
- for (i=0; i<NR_EXT_IRQS; i++) {
- irq_desc[START_EXT_IRQS + i].handler = &cayman_irq_type;
- }
-
- /* Setup the SMSC interrupt */
- setup_irq(SMSC_IRQ, &cayman_action_smsc);
- setup_irq(PCI2_IRQ, &cayman_action_pci2);
-}
+++ /dev/null
-/*
- * arch/sh64/kernel/led_cayman.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Flash the LEDs
- */
-#include <asm/io.h>
-
-/*
-** It is supposed these functions to be used for a low level
-** debugging (via Cayman LEDs), hence to be available as soon
-** as possible.
-** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
-** (this happen when IRQ are initialized... quite late).
-** These triky dependencies should be removed. Temporary, it
-** may be enough to NOP until EPLD is mapped.
-*/
-
-extern unsigned long epld_virt;
-
-#define LED_ADDR (epld_virt + 0x008)
-#define HDSP2534_ADDR (epld_virt + 0x100)
-
-void mach_led(int position, int value)
-{
- if (!epld_virt)
- return;
-
- if (value)
- ctrl_outl(0, LED_ADDR);
- else
- ctrl_outl(1, LED_ADDR);
-
-}
-
-void mach_alphanum(int position, unsigned char value)
-{
- if (!epld_virt)
- return;
-
- ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
-}
-
-void mach_alphanum_brightness(int setting)
-{
- ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-cayman/setup.c
- *
- * SH5 Cayman support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright David J. Mckay.
- * Needs major work!
- *
- * benedict.gaster@superh.com: 3rd May 2002
- * Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org: 15th May 2003
- * Use the generic procfs cpuinfo interface, just return a valid board name.
- */
-
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/config.h>
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <linux/seq_file.h>
-#include <asm/processor.h>
-#include <asm/platform.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-
-#define RES_COUNT(res) ((sizeof((res))/sizeof(struct resource)))
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define RES NO_PRIORITY /* Disabled */
-#define IR0 IRL0_PRIORITY /* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY /* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY /* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY /* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY /* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY /* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY /* WDT Ints */
-
-/* Setup for the SMSC FDC37C935 */
-#define SMSC_SUPERIO_BASE 0x04000000
-#define SMSC_CONFIG_PORT_ADDR 0x3f0
-#define SMSC_INDEX_PORT_ADDR SMSC_CONFIG_PORT_ADDR
-#define SMSC_DATA_PORT_ADDR 0x3f1
-
-#define SMSC_ENTER_CONFIG_KEY 0x55
-#define SMSC_EXIT_CONFIG_KEY 0xaa
-
-#define SMCS_LOGICAL_DEV_INDEX 0x07
-#define SMSC_DEVICE_ID_INDEX 0x20
-#define SMSC_DEVICE_REV_INDEX 0x21
-#define SMSC_ACTIVATE_INDEX 0x30
-#define SMSC_PRIMARY_INT_INDEX 0x70
-#define SMSC_SECONDARY_INT_INDEX 0x72
-
-#define SMSC_KEYBOARD_DEVICE 7
-
-#define SMSC_SUPERIO_READ_INDEXED(index) ({ \
- outb((index), SMSC_INDEX_PORT_ADDR); \
- inb(SMSC_DATA_PORT_ADDR); })
-#define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
- outb((index), SMSC_INDEX_PORT_ADDR); \
- outb((val), SMSC_DATA_PORT_ADDR); })
-
-unsigned long smsc_superio_virt;
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
- /* To be updated with external devices */
-};
-
-struct resource kram_resources[] = {
- { "Kernel code", 0, 0 }, /* These must be last in the array */
- { "Kernel data", 0, 0 } /* These must be last in the array */
-};
-
-struct resource xram_resources[] = {
- /* To be updated with external devices */
-};
-
-struct resource rom_resources[] = {
- /* To be updated with external devices */
-};
-
-struct sh64_platform platform_parms = {
- .readonly_rootfs = 1,
- .initial_root_dev = 0x0100,
- .loader_type = 1,
- .io_res_p = io_resources,
- .io_res_count = RES_COUNT(io_resources),
- .kram_res_p = kram_resources,
- .kram_res_count = RES_COUNT(kram_resources),
- .xram_res_p = xram_resources,
- .xram_res_count = RES_COUNT(xram_resources),
- .rom_res_p = rom_resources,
- .rom_res_count = RES_COUNT(rom_resources),
-};
-
-int platform_int_priority[NR_INTC_IRQS] = {
- IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ 0- 7 */
- RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ 8-15 */
- PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */
- RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */
- TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */
- RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */
- RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */
- RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */
-};
-
-static int __init smsc_superio_setup(void)
-{
- unsigned char devid, devrev;
-
- smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
- if (!smsc_superio_virt) {
- panic("Unable to remap SMSC SuperIO\n");
- }
-
- /* Initially the chip is in run state */
- /* Put it into configuration state */
- outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
- outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
-
- /* Read device ID info */
- devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
- devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
- printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);
-
- /* Select the keyboard device */
- SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);
-
- /* enable it */
- SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
-
- /* Select the interrupts */
- /* On a PC keyboard is IRQ1, mouse is IRQ12 */
- SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
- SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);
-
- /* Exit the configuraton state */
- outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
-
- return 0;
-}
-
-/* This is grotty, but, because kernel is always referenced on the link line
- * before any devices, this is safe.
- */
-__initcall(smsc_superio_setup);
-
-void __init platform_setup(void)
-{
- /* Cayman platform leaves the decision to head.S, for now */
- platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
- /* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
- /* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
- return "Hitachi Cayman";
-}
-
+++ /dev/null
-#
-# Makefile for the ST50 Harp specific parts of the kernel
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-O_TARGET := harp.o
-
-obj-y := setup.o
-
-include $(TOPDIR)/Rules.make
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-harp/setup.c
- *
- * SH-5 Simulator Platform Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * benedict.gaster@superh.com: 3rd May 2002
- * Added support for ramdisk, removing statically linked romfs at the same time. *
- *
- * lethal@linux-sh.org: 15th May 2003
- * Use the generic procfs cpuinfo interface, just return a valid board name.
- */
-
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/config.h>
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <asm/processor.h>
-#include <asm/platform.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-
-#define RES_COUNT(res) ((sizeof((res))/sizeof(struct resource)))
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define RES NO_PRIORITY /* Disabled */
-#define IR0 IRL0_PRIORITY /* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY /* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY /* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY /* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY /* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY /* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY /* WDT Ints */
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
- /* To be updated with external devices */
-};
-
-struct resource kram_resources[] = {
- { "Kernel code", 0, 0 }, /* These must be last in the array */
- { "Kernel data", 0, 0 } /* These must be last in the array */
-};
-
-struct resource xram_resources[] = {
- /* To be updated with external devices */
-};
-
-struct resource rom_resources[] = {
- /* To be updated with external devices */
-};
-
-struct sh64_platform platform_parms = {
- .readonly_rootfs = 1,
- .initial_root_dev = 0x0100,
- .loader_type = 1,
- .io_res_p = io_resources,
- .io_res_count = RES_COUNT(io_resources),
- .kram_res_p = kram_resources,
- .kram_res_count = RES_COUNT(kram_resources),
- .xram_res_p = xram_resources,
- .xram_res_count = RES_COUNT(xram_resources),
- .rom_res_p = rom_resources,
- .rom_res_count = RES_COUNT(rom_resources),
-};
-
-int platform_int_priority[NR_INTC_IRQS] = {
- IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ 0- 7 */
- RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ 8-15 */
- PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */
- RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */
- TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */
- RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */
- RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */
- RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */
-};
-
-void __init platform_setup(void)
-{
- /* Harp platform leaves the decision to head.S, for now */
- platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
- /* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
- /* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
- return "ST50 Harp";
-}
-
+++ /dev/null
-#
-# Makefile for the SH-5 ROM/RAM specific parts of the kernel
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-O_TARGET := romram.o
-
-obj-y := setup.o
-
-include $(TOPDIR)/Rules.make
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-romram/setup.c
- *
- * SH-5 ROM/RAM Platform Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * benedict.gaster@superh.com: 3rd May 2002
- * Added support for ramdisk, removing statically linked romfs at the same time. *
- *
- * lethal@linux-sh.org: 15th May 2003
- * Use the generic procfs cpuinfo interface, just return a valid board name.
- *
- * Sean.McGoogan@superh.com 17th Feb 2004
- * copied from arch/sh64/mach-harp/setup.c
- */
-
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/config.h>
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <asm/processor.h>
-#include <asm/platform.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-
-#define RES_COUNT(res) ((sizeof((res))/sizeof(struct resource)))
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define RES NO_PRIORITY /* Disabled */
-#define IR0 IRL0_PRIORITY /* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY /* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY /* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY /* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY /* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY /* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY /* WDT Ints */
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
- /* To be updated with external devices */
-};
-
-struct resource kram_resources[] = {
- { "Kernel code", 0, 0 }, /* These must be last in the array */
- { "Kernel data", 0, 0 } /* These must be last in the array */
-};
-
-struct resource xram_resources[] = {
- /* To be updated with external devices */
-};
-
-struct resource rom_resources[] = {
- /* To be updated with external devices */
-};
-
-struct sh64_platform platform_parms = {
- .readonly_rootfs = 1,
- .initial_root_dev = 0x0100,
- .loader_type = 1,
- .io_res_p = io_resources,
- .io_res_count = RES_COUNT(io_resources),
- .kram_res_p = kram_resources,
- .kram_res_count = RES_COUNT(kram_resources),
- .xram_res_p = xram_resources,
- .xram_res_count = RES_COUNT(xram_resources),
- .rom_res_p = rom_resources,
- .rom_res_count = RES_COUNT(rom_resources),
-};
-
-int platform_int_priority[NR_INTC_IRQS] = {
- IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ 0- 7 */
- RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ 8-15 */
- PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */
- RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */
- TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */
- RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */
- RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */
- RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */
-};
-
-void __init platform_setup(void)
-{
- /* ROM/RAM platform leaves the decision to head.S, for now */
- platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
- /* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
- /* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
- return "ROM/RAM";
-}
-
+++ /dev/null
-#
-# Makefile for the SH-5 Simulator specific parts of the kernel
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-O_TARGET := sim.o
-
-obj-y := setup.o
-
-include $(TOPDIR)/Rules.make
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mach-sim/setup.c
- *
- * ST50 Simulator Platform Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * lethal@linux-sh.org: 15th May 2003
- * Use the generic procfs cpuinfo interface, just return a valid board name.
- */
-
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/config.h>
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <asm/addrspace.h>
-#include <asm/processor.h>
-#include <asm/platform.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-
-#ifdef CONFIG_BLK_DEV_INITRD
-#include "../rootfs/rootfs.h"
-#endif
-
-static __init void platform_monitor(void);
-static __init void platform_setup(void);
-static __init void platform_reserve(void);
-
-
-#define PHYS_MEMORY CONFIG_MEMORY_SIZE_IN_MB*1024*1024
-
-#if (PHYS_MEMORY < P1SEG_FOOTPRINT_RAM)
-#error "Invalid kernel configuration. Physical memory below footprint requirements."
-#endif
-
-#define RAM_DISK_START CONFIG_MEMORY_START+P1SEG_INITRD_BLOCK /* Top of 4MB */
-#ifdef PLATFORM_ROMFS_SIZE
-#define RAM_DISK_SIZE (PAGE_ALIGN(PLATFORM_ROMFS_SIZE)) /* Variable Top */
-#if ((RAM_DISK_START + RAM_DISK_SIZE) > (CONFIG_MEMORY_START + PHYS_MEMORY))
-#error "Invalid kernel configuration. ROM RootFS exceeding physical memory."
-#endif
-#else
-#define RAM_DISK_SIZE P1SEG_INITRD_BLOCK_SIZE /* Top of 4MB */
-#endif
-
-#define RES_COUNT(res) ((sizeof((res))/sizeof(struct resource)))
-
-/*
- * Platform Dependent Interrupt Priorities.
- */
-
-/* Using defaults defined in irq.h */
-#define RES NO_PRIORITY /* Disabled */
-#define IR0 IRL0_PRIORITY /* IRLs */
-#define IR1 IRL1_PRIORITY
-#define IR2 IRL2_PRIORITY
-#define IR3 IRL3_PRIORITY
-#define PCA INTA_PRIORITY /* PCI Ints */
-#define PCB INTB_PRIORITY
-#define PCC INTC_PRIORITY
-#define PCD INTD_PRIORITY
-#define SER TOP_PRIORITY
-#define ERR TOP_PRIORITY
-#define PW0 TOP_PRIORITY
-#define PW1 TOP_PRIORITY
-#define PW2 TOP_PRIORITY
-#define PW3 TOP_PRIORITY
-#define DM0 NO_PRIORITY /* DMA Ints */
-#define DM1 NO_PRIORITY
-#define DM2 NO_PRIORITY
-#define DM3 NO_PRIORITY
-#define DAE NO_PRIORITY
-#define TU0 TIMER_PRIORITY /* TMU Ints */
-#define TU1 NO_PRIORITY
-#define TU2 NO_PRIORITY
-#define TI2 NO_PRIORITY
-#define ATI NO_PRIORITY /* RTC Ints */
-#define PRI NO_PRIORITY
-#define CUI RTC_PRIORITY
-#define ERI SCIF_PRIORITY /* SCIF Ints */
-#define RXI SCIF_PRIORITY
-#define BRI SCIF_PRIORITY
-#define TXI SCIF_PRIORITY
-#define ITI TOP_PRIORITY /* WDT Ints */
-
-/*
- * Platform dependent structures: maps and parms block.
- */
-struct resource io_resources[] = {
- /* Nothing yet .. */
-};
-
-struct resource kram_resources[] = {
- { "Kernel code", 0, 0 }, /* These must be last in the array */
- { "Kernel data", 0, 0 } /* These must be last in the array */
-};
-
-struct resource xram_resources[] = {
- /* Nothing yet .. */
-};
-
-struct resource rom_resources[] = {
- /* Nothing yet .. */
-};
-
-struct sh64_platform platform_parms = {
- .readonly_rootfs = 1,
- .initial_root_dev = 0x0100,
- .loader_type = 1,
- .initrd_start = RAM_DISK_START,
- .initrd_size = RAM_DISK_SIZE,
- .io_res_p = io_resources,
- .io_res_count = RES_COUNT(io_resources),
- .kram_res_p = kram_resources,
- .kram_res_count = RES_COUNT(kram_resources),
- .xram_res_p = xram_resources,
- .xram_res_count = RES_COUNT(xram_resources),
- .rom_res_p = rom_resources,
- .rom_res_count = RES_COUNT(rom_resources),
-};
-
-int platform_int_priority[NR_IRQS] = {
- IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ 0- 7 */
- RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ 8-15 */
- PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */
- RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */
- TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */
- RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */
- RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */
- RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */
-};
-
-void __init platform_setup(void)
-{
- /* Simulator platform leaves the decision to head.S */
- platform_parms.fpu_flags = fpu_in_use;
-}
-
-void __init platform_monitor(void)
-{
- /* Nothing yet .. */
-}
-
-void __init platform_reserve(void)
-{
- /* Nothing yet .. */
-}
-
-const char *get_system_type(void)
-{
- return "SH-5 Simulator";
-}
-
+++ /dev/null
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001 Paolo Alberelli
-# Copyright (C) 2003, 2004 Paul Mundt
-#
-# Makefile for the sh64-specific parts of the Linux memory manager.
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-obj-y := init.o fault.o ioremap.o extable.o cache.o tlbmiss.o tlb.o
-
-obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
-
-# Special flags for tlbmiss.o. This puts restrictions on the number of
-# caller-save registers that the compiler can target when building this file.
-# This is required because the code is called from a context in entry.S where
-# very few registers have been saved in the exception handler (for speed
-# reasons).
-# The caller save registers that have been saved and which can be used are
-# r2,r3,r4,r5 : argument passing
-# r15, r18 : SP and LINK
-# tr0-4 : allow all caller-save TR's. The compiler seems to be able to make
-# use of them, so it's probably beneficial to performance to save them
-# and have them available for it.
-#
-# The resources not listed below are callee save, i.e. the compiler is free to
-# use any of them and will spill them to the stack itself.
-
-CFLAGS_tlbmiss.o += -ffixed-r7 \
- -ffixed-r8 -ffixed-r9 -ffixed-r10 -ffixed-r11 -ffixed-r12 \
- -ffixed-r13 -ffixed-r14 -ffixed-r16 -ffixed-r17 -ffixed-r19 \
- -ffixed-r20 -ffixed-r21 -ffixed-r22 -ffixed-r23 \
- -ffixed-r24 -ffixed-r25 -ffixed-r26 -ffixed-r27 \
- -ffixed-r36 -ffixed-r37 -ffixed-r38 -ffixed-r39 -ffixed-r40 \
- -ffixed-r41 -ffixed-r42 -ffixed-r43 \
- -ffixed-r60 -ffixed-r61 -ffixed-r62 \
- -fomit-frame-pointer
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/cache.c
- *
- * Original version Copyright (C) 2000, 2001 Paolo Alberelli
- * Second version Copyright (C) benedict.gaster@superh.com 2002
- * Third version Copyright Richard.Curnow@superh.com 2003
- * Hacks to third version Copyright (C) 2003 Paul Mundt
- */
-
-/****************************************************************************/
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/threads.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/cache.h>
-#include <asm/tlb.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/mmu_context.h>
-#include <asm/pgalloc.h> /* for flush_itlb_range */
-
-#include <linux/proc_fs.h>
-
-/* This function is in entry.S */
-extern unsigned long switch_and_save_asid(unsigned long new_asid);
-
-/* Wired TLB entry for the D-cache */
-static unsigned long long dtlb_cache_slot;
-
-/**
- * sh64_cache_init()
- *
- * This is pretty much just a straightforward clone of the SH
- * detect_cpu_and_cache_system().
- *
- * This function is responsible for setting up all of the cache
- * info dynamically as well as taking care of CPU probing and
- * setting up the relevant subtype data.
- *
- * FIXME: For the time being, we only really support the SH5-101
- * out of the box, and don't support dynamic probing for things
- * like the SH5-103 or even cut2 of the SH5-101. Implement this
- * later!
- */
-int __init sh64_cache_init(void)
-{
- /*
- * First, setup some sane values for the I-cache.
- */
- cpu_data->icache.ways = 4;
- cpu_data->icache.sets = 256;
- cpu_data->icache.linesz = L1_CACHE_BYTES;
-
- /*
- * FIXME: This can probably be cleaned up a bit as well.. for example,
- * do we really need the way shift _and_ the way_step_shift ?? Judging
- * by the existing code, I would guess no.. is there any valid reason
- * why we need to be tracking this around?
- */
- cpu_data->icache.way_shift = 13;
- cpu_data->icache.entry_shift = 5;
- cpu_data->icache.set_shift = 4;
- cpu_data->icache.way_step_shift = 16;
- cpu_data->icache.asid_shift = 2;
-
- /*
- * way offset = cache size / associativity, so just don't factor in
- * associativity in the first place..
- */
- cpu_data->icache.way_ofs = cpu_data->icache.sets *
- cpu_data->icache.linesz;
-
- cpu_data->icache.asid_mask = 0x3fc;
- cpu_data->icache.idx_mask = 0x1fe0;
- cpu_data->icache.epn_mask = 0xffffe000;
- cpu_data->icache.flags = 0;
-
- /*
- * Next, setup some sane values for the D-cache.
- *
- * On the SH5, these are pretty consistent with the I-cache settings,
- * so we just copy over the existing definitions.. these can be fixed
- * up later, especially if we add runtime CPU probing.
- *
- * Though in the meantime it saves us from having to duplicate all of
- * the above definitions..
- */
- cpu_data->dcache = cpu_data->icache;
-
- /*
- * Setup any cache-related flags here
- */
-#if defined(CONFIG_DCACHE_WRITE_THROUGH)
- set_bit(SH_CACHE_MODE_WT, &(cpu_data->dcache.flags));
-#elif defined(CONFIG_DCACHE_WRITE_BACK)
- set_bit(SH_CACHE_MODE_WB, &(cpu_data->dcache.flags));
-#endif
-
- /*
- * We also need to reserve a slot for the D-cache in the DTLB, so we
- * do this now ..
- */
- dtlb_cache_slot = sh64_get_wired_dtlb_entry();
-
- return 0;
-}
-
-/*##########################################################################*/
-
-/* From here onwards, a rewrite of the implementation,
- by Richard.Curnow@superh.com.
-
- The major changes in this compared to the old version are;
- 1. use more selective purging through OCBP instead of using ALLOCO to purge
- by natural replacement. This avoids purging out unrelated cache lines
- that happen to be in the same set.
- 2. exploit the APIs copy_user_page and clear_user_page better
- 3. be more selective about I-cache purging, in particular use invalidate_all
- more sparingly.
-
- */
-
-/*##########################################################################
- SUPPORT FUNCTIONS
- ##########################################################################*/
-
-/****************************************************************************/
-/* The following group of functions deal with mapping and unmapping a temporary
- page into the DTLB slot that have been set aside for our exclusive use. */
-/* In order to accomplish this, we use the generic interface for adding and
- removing a wired slot entry as defined in arch/sh64/mm/tlb.c */
-/****************************************************************************/
-
-static unsigned long slot_own_flags;
-
-static inline void sh64_setup_dtlb_cache_slot(unsigned long eaddr, unsigned long asid, unsigned long paddr)
-{
- local_irq_save(slot_own_flags);
- sh64_setup_tlb_slot(dtlb_cache_slot, eaddr, asid, paddr);
-}
-
-static inline void sh64_teardown_dtlb_cache_slot(void)
-{
- sh64_teardown_tlb_slot(dtlb_cache_slot);
- local_irq_restore(slot_own_flags);
-}
-
-/****************************************************************************/
-
-#ifndef CONFIG_ICACHE_DISABLED
-
-static void __inline__ sh64_icache_inv_all(void)
-{
- unsigned long long addr, flag, data;
- unsigned int flags;
-
- addr=ICCR0;
- flag=ICCR0_ICI;
- data=0;
-
- /* Make this a critical section for safety (probably not strictly necessary.) */
- local_irq_save(flags);
-
- /* Without %1 it gets unexplicably wrong */
- asm volatile("getcfg %3, 0, %0\n\t"
- "or %0, %2, %0\n\t"
- "putcfg %3, 0, %0\n\t"
- "synci"
- : "=&r" (data)
- : "0" (data), "r" (flag), "r" (addr));
-
- local_irq_restore(flags);
-}
-
-static void sh64_icache_inv_kernel_range(unsigned long start, unsigned long end)
-{
- /* Invalidate range of addresses [start,end] from the I-cache, where
- * the addresses lie in the kernel superpage. */
-
- unsigned long long ullend, addr, aligned_start;
-#if (NEFF == 32)
- aligned_start = (unsigned long long)(signed long long)(signed long) start;
-#else
-#error "NEFF != 32"
-#endif
- aligned_start &= L1_CACHE_ALIGN_MASK;
- addr = aligned_start;
-#if (NEFF == 32)
- ullend = (unsigned long long) (signed long long) (signed long) end;
-#else
-#error "NEFF != 32"
-#endif
- while (addr <= ullend) {
- asm __volatile__ ("icbi %0, 0" : : "r" (addr));
- addr += L1_CACHE_BYTES;
- }
-}
-
-static void sh64_icache_inv_user_page(struct vm_area_struct *vma, unsigned long eaddr)
-{
- /* If we get called, we know that vma->vm_flags contains VM_EXEC.
- Also, eaddr is page-aligned. */
-
- unsigned long long addr, end_addr;
- unsigned long flags = 0;
- unsigned long running_asid, vma_asid;
- addr = eaddr;
- end_addr = addr + PAGE_SIZE;
-
- /* Check whether we can use the current ASID for the I-cache
- invalidation. For example, if we're called via
- access_process_vm->flush_cache_page->here, (e.g. when reading from
- /proc), 'running_asid' will be that of the reader, not of the
- victim.
-
- Also, note the risk that we might get pre-empted between the ASID
- compare and blocking IRQs, and before we regain control, the
- pid->ASID mapping changes. However, the whole cache will get
- invalidated when the mapping is renewed, so the worst that can
- happen is that the loop below ends up invalidating somebody else's
- cache entries.
- */
-
- running_asid = get_asid();
- vma_asid = (vma->vm_mm->context & MMU_CONTEXT_ASID_MASK);
- if (running_asid != vma_asid) {
- local_irq_save(flags);
- switch_and_save_asid(vma_asid);
- }
- while (addr < end_addr) {
- /* Worth unrolling a little */
- asm __volatile__("icbi %0, 0" : : "r" (addr));
- asm __volatile__("icbi %0, 32" : : "r" (addr));
- asm __volatile__("icbi %0, 64" : : "r" (addr));
- asm __volatile__("icbi %0, 96" : : "r" (addr));
- addr += 128;
- }
- if (running_asid != vma_asid) {
- switch_and_save_asid(running_asid);
- local_irq_restore(flags);
- }
-}
-
-/****************************************************************************/
-
-static void sh64_icache_inv_user_page_range(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
- /* Used for invalidating big chunks of I-cache, i.e. assume the range
- is whole pages. If 'start' or 'end' is not page aligned, the code
- is conservative and invalidates to the ends of the enclosing pages.
- This is functionally OK, just a performance loss. */
-
- /* See the comments below in sh64_dcache_purge_user_range() regarding
- the choice of algorithm. However, for the I-cache option (2) isn't
- available because there are no physical tags so aliases can't be
- resolved. The icbi instruction has to be used through the user
- mapping. Because icbi is cheaper than ocbp on a cache hit, it
- would be cheaper to use the selective code for a large range than is
- possible with the D-cache. Just assume 64 for now as a working
- figure.
- */
-
- int n_pages;
-
- if (!mm) return;
-
- n_pages = ((end - start) >> PAGE_SHIFT);
- if (n_pages >= 64) {
- sh64_icache_inv_all();
- } else {
- unsigned long aligned_start;
- unsigned long eaddr;
- unsigned long after_last_page_start;
- unsigned long mm_asid, current_asid;
- unsigned long long flags = 0ULL;
-
- mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
- current_asid = get_asid();
-
- if (mm_asid != current_asid) {
- /* Switch ASID and run the invalidate loop under cli */
- local_irq_save(flags);
- switch_and_save_asid(mm_asid);
- }
-
- aligned_start = start & PAGE_MASK;
- after_last_page_start = PAGE_SIZE + ((end - 1) & PAGE_MASK);
-
- while (aligned_start < after_last_page_start) {
- struct vm_area_struct *vma;
- unsigned long vma_end;
- vma = find_vma(mm, aligned_start);
- if (!vma || (aligned_start <= vma->vm_end)) {
- /* Avoid getting stuck in an error condition */
- aligned_start += PAGE_SIZE;
- continue;
- }
- vma_end = vma->vm_end;
- if (vma->vm_flags & VM_EXEC) {
- /* Executable */
- eaddr = aligned_start;
- while (eaddr < vma_end) {
- sh64_icache_inv_user_page(vma, eaddr);
- eaddr += PAGE_SIZE;
- }
- }
- aligned_start = vma->vm_end; /* Skip to start of next region */
- }
- if (mm_asid != current_asid) {
- switch_and_save_asid(current_asid);
- local_irq_restore(flags);
- }
- }
-}
-
-static void sh64_icache_inv_user_small_range(struct mm_struct *mm,
- unsigned long start, int len)
-{
-
- /* Invalidate a small range of user context I-cache, not necessarily
- page (or even cache-line) aligned. */
-
- unsigned long long eaddr = start;
- unsigned long long eaddr_end = start + len;
- unsigned long current_asid, mm_asid;
- unsigned long long flags;
- unsigned long long epage_start;
-
- /* Since this is used inside ptrace, the ASID in the mm context
- typically won't match current_asid. We'll have to switch ASID to do
- this. For safety, and given that the range will be small, do all
- this under cli.
-
- Note, there is a hazard that the ASID in mm->context is no longer
- actually associated with mm, i.e. if the mm->context has started a
- new cycle since mm was last active. However, this is just a
- performance issue: all that happens is that we invalidate lines
- belonging to another mm, so the owning process has to refill them
- when that mm goes live again. mm itself can't have any cache
- entries because there will have been a flush_cache_all when the new
- mm->context cycle started. */
-
- /* Align to start of cache line. Otherwise, suppose len==8 and start
- was at 32N+28 : the last 4 bytes wouldn't get invalidated. */
- eaddr = start & L1_CACHE_ALIGN_MASK;
- eaddr_end = start + len;
-
- local_irq_save(flags);
- mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
- current_asid = switch_and_save_asid(mm_asid);
-
- epage_start = eaddr & PAGE_MASK;
-
- while (eaddr < eaddr_end)
- {
- asm __volatile__("icbi %0, 0" : : "r" (eaddr));
- eaddr += L1_CACHE_BYTES;
- }
- switch_and_save_asid(current_asid);
- local_irq_restore(flags);
-}
-
-static void sh64_icache_inv_current_user_range(unsigned long start, unsigned long end)
-{
- /* The icbi instruction never raises ITLBMISS. i.e. if there's not a
- cache hit on the virtual tag the instruction ends there, without a
- TLB lookup. */
-
- unsigned long long aligned_start;
- unsigned long long ull_end;
- unsigned long long addr;
-
- ull_end = end;
-
- /* Just invalidate over the range using the natural addresses. TLB
- miss handling will be OK (TBC). Since it's for the current process,
- either we're already in the right ASID context, or the ASIDs have
- been recycled since we were last active in which case we might just
- invalidate another processes I-cache entries : no worries, just a
- performance drop for him. */
- aligned_start = start & L1_CACHE_ALIGN_MASK;
- addr = aligned_start;
- while (addr < ull_end) {
- asm __volatile__ ("icbi %0, 0" : : "r" (addr));
- asm __volatile__ ("nop");
- asm __volatile__ ("nop");
- addr += L1_CACHE_BYTES;
- }
-}
-
-#endif /* !CONFIG_ICACHE_DISABLED */
-
-/****************************************************************************/
-
-#ifndef CONFIG_DCACHE_DISABLED
-
-/* Buffer used as the target of alloco instructions to purge data from cache
- sets by natural eviction. -- RPC */
-#define DUMMY_ALLOCO_AREA_SIZE L1_CACHE_SIZE_BYTES + (1024 * 4)
-static unsigned char dummy_alloco_area[DUMMY_ALLOCO_AREA_SIZE] __cacheline_aligned = { 0, };
-
-/****************************************************************************/
-
-static void __inline__ sh64_dcache_purge_sets(int sets_to_purge_base, int n_sets)
-{
- /* Purge all ways in a particular block of sets, specified by the base
- set number and number of sets. Can handle wrap-around, if that's
- needed. */
-
- int dummy_buffer_base_set;
- unsigned long long eaddr, eaddr0, eaddr1;
- int j;
- int set_offset;
-
- dummy_buffer_base_set = ((int)&dummy_alloco_area & cpu_data->dcache.idx_mask) >> cpu_data->dcache.entry_shift;
- set_offset = sets_to_purge_base - dummy_buffer_base_set;
-
- for (j=0; j<n_sets; j++, set_offset++) {
- set_offset &= (cpu_data->dcache.sets - 1);
- eaddr0 = (unsigned long long)dummy_alloco_area + (set_offset << cpu_data->dcache.entry_shift);
-
- /* Do one alloco which hits the required set per cache way. For
- write-back mode, this will purge the #ways resident lines. There's
- little point unrolling this loop because the allocos stall more if
- they're too close together. */
- eaddr1 = eaddr0 + cpu_data->dcache.way_ofs * cpu_data->dcache.ways;
- for (eaddr=eaddr0; eaddr<eaddr1; eaddr+=cpu_data->dcache.way_ofs) {
- asm __volatile__ ("alloco %0, 0" : : "r" (eaddr));
- }
-
- eaddr1 = eaddr0 + cpu_data->dcache.way_ofs * cpu_data->dcache.ways;
- for (eaddr=eaddr0; eaddr<eaddr1; eaddr+=cpu_data->dcache.way_ofs) {
- /* Load from each address. Required because alloco is a NOP if
- the cache is write-through. Write-through is a config option. */
- if (test_bit(SH_CACHE_MODE_WT, &(cpu_data->dcache.flags)))
- *(volatile unsigned char *)(int)eaddr;
- }
- }
-
- /* Don't use OCBI to invalidate the lines. That costs cycles directly.
- If the dummy block is just left resident, it will naturally get
- evicted as required. */
-
- return;
-}
-
-/****************************************************************************/
-
-static void sh64_dcache_purge_all(void)
-{
- /* Purge the entire contents of the dcache. The most efficient way to
- achieve this is to use alloco instructions on a region of unused
- memory equal in size to the cache, thereby causing the current
- contents to be discarded by natural eviction. The alternative,
- namely reading every tag, setting up a mapping for the corresponding
- page and doing an OCBP for the line, would be much more expensive.
- */
-
- sh64_dcache_purge_sets(0, cpu_data->dcache.sets);
-
- return;
-
-}
-
-/****************************************************************************/
-
-static void sh64_dcache_purge_kernel_range(unsigned long start, unsigned long end)
-{
- /* Purge the range of addresses [start,end] from the D-cache. The
- addresses lie in the superpage mapping. There's no harm if we
- overpurge at either end - just a small performance loss. */
- unsigned long long ullend, addr, aligned_start;
-#if (NEFF == 32)
- aligned_start = (unsigned long long)(signed long long)(signed long) start;
-#else
-#error "NEFF != 32"
-#endif
- aligned_start &= L1_CACHE_ALIGN_MASK;
- addr = aligned_start;
-#if (NEFF == 32)
- ullend = (unsigned long long) (signed long long) (signed long) end;
-#else
-#error "NEFF != 32"
-#endif
- while (addr <= ullend) {
- asm __volatile__ ("ocbp %0, 0" : : "r" (addr));
- addr += L1_CACHE_BYTES;
- }
- return;
-}
-
-/* Assumes this address (+ (2**n_synbits) pages up from it) aren't used for
- anything else in the kernel */
-#define MAGIC_PAGE0_START 0xffffffffec000000ULL
-
-static void sh64_dcache_purge_coloured_phy_page(unsigned long paddr, unsigned long eaddr)
-{
- /* Purge the physical page 'paddr' from the cache. It's known that any
- cache lines requiring attention have the same page colour as the the
- address 'eaddr'.
-
- This relies on the fact that the D-cache matches on physical tags
- when no virtual tag matches. So we create an alias for the original
- page and purge through that. (Alternatively, we could have done
- this by switching ASID to match the original mapping and purged
- through that, but that involves ASID switching cost + probably a
- TLBMISS + refill anyway.)
- */
-
- unsigned long long magic_page_start;
- unsigned long long magic_eaddr, magic_eaddr_end;
-
- magic_page_start = MAGIC_PAGE0_START + (eaddr & CACHE_OC_SYN_MASK);
-
- /* As long as the kernel is not pre-emptible, this doesn't need to be
- under cli/sti. */
-
- sh64_setup_dtlb_cache_slot(magic_page_start, get_asid(), paddr);
-
- magic_eaddr = magic_page_start;
- magic_eaddr_end = magic_eaddr + PAGE_SIZE;
- while (magic_eaddr < magic_eaddr_end) {
- /* Little point in unrolling this loop - the OCBPs are blocking
- and won't go any quicker (i.e. the loop overhead is parallel
- to part of the OCBP execution.) */
- asm __volatile__ ("ocbp %0, 0" : : "r" (magic_eaddr));
- magic_eaddr += L1_CACHE_BYTES;
- }
-
- sh64_teardown_dtlb_cache_slot();
-}
-
-/****************************************************************************/
-
-static void sh64_dcache_purge_phy_page(unsigned long paddr)
-{
- /* Pure a page given its physical start address, by creating a
- temporary 1 page mapping and purging across that. Even if we know
- the virtual address (& vma or mm) of the page, the method here is
- more elegant because it avoids issues of coping with page faults on
- the purge instructions (i.e. no special-case code required in the
- critical path in the TLB miss handling). */
-
- unsigned long long eaddr_start, eaddr, eaddr_end;
- int i;
-
- /* As long as the kernel is not pre-emptible, this doesn't need to be
- under cli/sti. */
-
- eaddr_start = MAGIC_PAGE0_START;
- for (i=0; i < (1 << CACHE_OC_N_SYNBITS); i++) {
- sh64_setup_dtlb_cache_slot(eaddr_start, get_asid(), paddr);
-
- eaddr = eaddr_start;
- eaddr_end = eaddr + PAGE_SIZE;
- while (eaddr < eaddr_end) {
- asm __volatile__ ("ocbp %0, 0" : : "r" (eaddr));
- eaddr += L1_CACHE_BYTES;
- }
-
- sh64_teardown_dtlb_cache_slot();
- eaddr_start += PAGE_SIZE;
- }
-}
-
-static void sh64_dcache_purge_virt_page(struct mm_struct *mm, unsigned long eaddr)
-{
- unsigned long phys;
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte;
- pte_t entry;
-
- pgd = pgd_offset(mm, eaddr);
- pmd = pmd_offset(pgd, eaddr);
-
- if (pmd_none(*pmd) || pmd_bad(*pmd))
- return;
-
- pte = pte_offset_kernel(pmd, eaddr);
- entry = *pte;
-
- if (pte_none(entry) || !pte_present(entry))
- return;
-
- phys = pte_val(entry) & PAGE_MASK;
-
- sh64_dcache_purge_phy_page(phys);
-}
-
-static void sh64_dcache_purge_user_page(struct mm_struct *mm, unsigned long eaddr)
-{
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte;
- pte_t entry;
- unsigned long paddr;
-
- /* NOTE : all the callers of this have mm->page_table_lock held, so the
- following page table traversal is safe even on SMP/pre-emptible. */
-
- if (!mm) return; /* No way to find physical address of page */
- pgd = pgd_offset(mm, eaddr);
- if (pgd_bad(*pgd)) return;
-
- pmd = pmd_offset(pgd, eaddr);
- if (pmd_none(*pmd) || pmd_bad(*pmd)) return;
-
- pte = pte_offset_kernel(pmd, eaddr);
- entry = *pte;
- if (pte_none(entry) || !pte_present(entry)) return;
-
- paddr = pte_val(entry) & PAGE_MASK;
-
- sh64_dcache_purge_coloured_phy_page(paddr, eaddr);
-
-}
-/****************************************************************************/
-
-static void sh64_dcache_purge_user_range(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
- /* There are at least 5 choices for the implementation of this, with
- pros (+), cons(-), comments(*):
-
- 1. ocbp each line in the range through the original user's ASID
- + no lines spuriously evicted
- - tlbmiss handling (must either handle faults on demand => extra
- special-case code in tlbmiss critical path), or map the page in
- advance (=> flush_tlb_range in advance to avoid multiple hits)
- - ASID switching
- - expensive for large ranges
-
- 2. temporarily map each page in the range to a special effective
- address and ocbp through the temporary mapping; relies on the
- fact that SH-5 OCB* always do TLB lookup and match on ptags (they
- never look at the etags)
- + no spurious evictions
- - expensive for large ranges
- * surely cheaper than (1)
-
- 3. walk all the lines in the cache, check the tags, if a match
- occurs create a page mapping to ocbp the line through
- + no spurious evictions
- - tag inspection overhead
- - (especially for small ranges)
- - potential cost of setting up/tearing down page mapping for
- every line that matches the range
- * cost partly independent of range size
-
- 4. walk all the lines in the cache, check the tags, if a match
- occurs use 4 * alloco to purge the line (+3 other probably
- innocent victims) by natural eviction
- + no tlb mapping overheads
- - spurious evictions
- - tag inspection overhead
-
- 5. implement like flush_cache_all
- + no tag inspection overhead
- - spurious evictions
- - bad for small ranges
-
- (1) can be ruled out as more expensive than (2). (2) appears best
- for small ranges. The choice between (3), (4) and (5) for large
- ranges and the range size for the large/small boundary need
- benchmarking to determine.
-
- For now use approach (2) for small ranges and (5) for large ones.
-
- */
-
- int n_pages;
-
- n_pages = ((end - start) >> PAGE_SHIFT);
- if (n_pages >= 64) {
-#if 1
- sh64_dcache_purge_all();
-#else
- unsigned long long set, way;
- unsigned long mm_asid = mm->context & MMU_CONTEXT_ASID_MASK;
- for (set = 0; set < cpu_data->dcache.sets; set++) {
- unsigned long long set_base_config_addr = CACHE_OC_ADDRESS_ARRAY + (set << cpu_data->dcache.set_shift);
- for (way = 0; way < cpu_data->dcache.ways; way++) {
- unsigned long long config_addr = set_base_config_addr + (way << cpu_data->dcache.way_step_shift);
- unsigned long long tag0;
- unsigned long line_valid;
-
- asm __volatile__("getcfg %1, 0, %0" : "=r" (tag0) : "r" (config_addr));
- line_valid = tag0 & SH_CACHE_VALID;
- if (line_valid) {
- unsigned long cache_asid;
- unsigned long epn;
-
- cache_asid = (tag0 & cpu_data->dcache.asid_mask) >> cpu_data->dcache.asid_shift;
- /* The next line needs some
- explanation. The virtual tags
- encode bits [31:13] of the virtual
- address, bit [12] of the 'tag' being
- implied by the cache set index. */
- epn = (tag0 & cpu_data->dcache.epn_mask) | ((set & 0x80) << cpu_data->dcache.entry_shift);
-
- if ((cache_asid == mm_asid) && (start <= epn) && (epn < end)) {
- /* TODO : could optimise this
- call by batching multiple
- adjacent sets together. */
- sh64_dcache_purge_sets(set, 1);
- break; /* Don't waste time inspecting other ways for this set */
- }
- }
- }
- }
-#endif
- } else {
- /* 'Small' range */
- unsigned long aligned_start;
- unsigned long eaddr;
- unsigned long last_page_start;
-
- aligned_start = start & PAGE_MASK;
- /* 'end' is 1 byte beyond the end of the range */
- last_page_start = (end - 1) & PAGE_MASK;
-
- eaddr = aligned_start;
- while (eaddr <= last_page_start) {
- sh64_dcache_purge_user_page(mm, eaddr);
- eaddr += PAGE_SIZE;
- }
- }
- return;
-}
-
-static void sh64_dcache_wback_current_user_range(unsigned long start, unsigned long end)
-{
- unsigned long long aligned_start;
- unsigned long long ull_end;
- unsigned long long addr;
-
- ull_end = end;
-
- /* Just wback over the range using the natural addresses. TLB miss
- handling will be OK (TBC) : the range has just been written to by
- the signal frame setup code, so the PTEs must exist.
-
- Note, if we have CONFIG_PREEMPT and get preempted inside this loop,
- it doesn't matter, even if the pid->ASID mapping changes whilst
- we're away. In that case the cache will have been flushed when the
- mapping was renewed. So the writebacks below will be nugatory (and
- we'll doubtless have to fault the TLB entry/ies in again with the
- new ASID), but it's a rare case.
- */
- aligned_start = start & L1_CACHE_ALIGN_MASK;
- addr = aligned_start;
- while (addr < ull_end) {
- asm __volatile__ ("ocbwb %0, 0" : : "r" (addr));
- addr += L1_CACHE_BYTES;
- }
-}
-
-#endif /* !CONFIG_DCACHE_DISABLED */
-
-/****************************************************************************/
-
-/* These *MUST* lie in an area of virtual address space that's otherwise unused. */
-#define UNIQUE_EADDR_START 0xe0000000UL
-#define UNIQUE_EADDR_END 0xe8000000UL
-
-static unsigned long sh64_make_unique_eaddr(unsigned long user_eaddr, unsigned long paddr)
-{
- /* Given a physical address paddr, and a user virtual address
- user_eaddr which will eventually be mapped to it, create a one-off
- kernel-private eaddr mapped to the same paddr. This is used for
- creating special destination pages for copy_user_page and
- clear_user_page */
-
- static unsigned long current_pointer = UNIQUE_EADDR_START;
- unsigned long coloured_pointer;
-
- if (current_pointer == UNIQUE_EADDR_END) {
- sh64_dcache_purge_all();
- current_pointer = UNIQUE_EADDR_START;
- }
-
- coloured_pointer = (current_pointer & ~CACHE_OC_SYN_MASK) | (user_eaddr & CACHE_OC_SYN_MASK);
- sh64_setup_dtlb_cache_slot(coloured_pointer, get_asid(), paddr);
-
- current_pointer += (PAGE_SIZE << CACHE_OC_N_SYNBITS);
-
- return coloured_pointer;
-}
-
-/****************************************************************************/
-
-static void sh64_copy_user_page_coloured(void *to, void *from, unsigned long address)
-{
- void *coloured_to;
-
- /* Discard any existing cache entries of the wrong colour. These are
- present quite often, if the kernel has recently used the page
- internally, then given it up, then it's been allocated to the user.
- */
- sh64_dcache_purge_coloured_phy_page(__pa(to), (unsigned long) to);
-
- coloured_to = (void *) sh64_make_unique_eaddr(address, __pa(to));
- sh64_page_copy(from, coloured_to);
-
- sh64_teardown_dtlb_cache_slot();
-}
-
-static void sh64_clear_user_page_coloured(void *to, unsigned long address)
-{
- void *coloured_to;
-
- /* Discard any existing kernel-originated lines of the wrong colour (as
- above) */
- sh64_dcache_purge_coloured_phy_page(__pa(to), (unsigned long) to);
-
- coloured_to = (void *) sh64_make_unique_eaddr(address, __pa(to));
- sh64_page_clear(coloured_to);
-
- sh64_teardown_dtlb_cache_slot();
-}
-
-/****************************************************************************/
-
-/*##########################################################################
- EXTERNALLY CALLABLE API.
- ##########################################################################*/
-
-/* These functions are described in Documentation/cachetlb.txt.
- Each one of these functions varies in behaviour depending on whether the
- I-cache and/or D-cache are configured out.
-
- Note that the Linux term 'flush' corresponds to what is termed 'purge' in
- the sh/sh64 jargon for the D-cache, i.e. write back dirty data then
- invalidate the cache lines, and 'invalidate' for the I-cache.
- */
-
-#undef FLUSH_TRACE
-
-void flush_cache_all(void)
-{
- /* Invalidate the entire contents of both caches, after writing back to
- memory any dirty data from the D-cache. */
- sh64_dcache_purge_all();
- sh64_icache_inv_all();
-}
-
-/****************************************************************************/
-
-void flush_cache_mm(struct mm_struct *mm)
-{
- /* Invalidate an entire user-address space from both caches, after
- writing back dirty data (e.g. for shared mmap etc). */
-
- /* This could be coded selectively by inspecting all the tags then
- doing 4*alloco on any set containing a match (as for
- flush_cache_range), but fork/exit/execve (where this is called from)
- are expensive anyway. */
-
- /* Have to do a purge here, despite the comments re I-cache below.
- There could be odd-coloured dirty data associated with the mm still
- in the cache - if this gets written out through natural eviction
- after the kernel has reused the page there will be chaos.
- */
-
- sh64_dcache_purge_all();
-
- /* The mm being torn down won't ever be active again, so any Icache
- lines tagged with its ASID won't be visible for the rest of the
- lifetime of this ASID cycle. Before the ASID gets reused, there
- will be a flush_cache_all. Hence we don't need to touch the
- I-cache. This is similar to the lack of action needed in
- flush_tlb_mm - see fault.c. */
-}
-
-/****************************************************************************/
-
-void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end)
-{
- struct mm_struct *mm = vma->vm_mm;
-
- /* Invalidate (from both caches) the range [start,end) of virtual
- addresses from the user address space specified by mm, after writing
- back any dirty data.
-
- Note(1), 'end' is 1 byte beyond the end of the range to flush.
-
- Note(2), this is called with mm->page_table_lock held.*/
-
- sh64_dcache_purge_user_range(mm, start, end);
- sh64_icache_inv_user_page_range(mm, start, end);
-}
-
-/****************************************************************************/
-
-void flush_cache_page(struct vm_area_struct *vma, unsigned long eaddr)
-{
- /* Invalidate any entries in either cache for the vma within the user
- address space vma->vm_mm for the page starting at virtual address
- 'eaddr'. This seems to be used primarily in breaking COW. Note,
- the I-cache must be searched too in case the page in question is
- both writable and being executed from (e.g. stack trampolines.)
-
- Note(1), this is called with mm->page_table_lock held.
- */
-
- sh64_dcache_purge_virt_page(vma->vm_mm, eaddr);
-
- if (vma->vm_flags & VM_EXEC) {
- sh64_icache_inv_user_page(vma, eaddr);
- }
-}
-
-/****************************************************************************/
-
-#ifndef CONFIG_DCACHE_DISABLED
-
-void copy_user_page(void *to, void *from, unsigned long address, struct page *page)
-{
- /* 'from' and 'to' are kernel virtual addresses (within the superpage
- mapping of the physical RAM). 'address' is the user virtual address
- where the copy 'to' will be mapped after. This allows a custom
- mapping to be used to ensure that the new copy is placed in the
- right cache sets for the user to see it without having to bounce it
- out via memory. Note however : the call to flush_page_to_ram in
- (generic)/mm/memory.c:(break_cow) undoes all this good work in that one
- very important case!
-
- TBD : can we guarantee that on every call, any cache entries for
- 'from' are in the same colour sets as 'address' also? i.e. is this
- always used just to deal with COW? (I suspect not). */
-
- /* There are two possibilities here for when the page 'from' was last accessed:
- * by the kernel : this is OK, no purge required.
- * by the/a user (e.g. for break_COW) : need to purge.
-
- If the potential user mapping at 'address' is the same colour as
- 'from' there is no need to purge any cache lines from the 'from'
- page mapped into cache sets of colour 'address'. (The copy will be
- accessing the page through 'from').
- */
-
- if (((address ^ (unsigned long) from) & CACHE_OC_SYN_MASK) != 0) {
- sh64_dcache_purge_coloured_phy_page(__pa(from), address);
- }
-
- if (((address ^ (unsigned long) to) & CACHE_OC_SYN_MASK) == 0) {
- /* No synonym problem on destination */
- sh64_page_copy(from, to);
- } else {
- sh64_copy_user_page_coloured(to, from, address);
- }
-
- /* Note, don't need to flush 'from' page from the cache again - it's
- done anyway by the generic code */
-}
-
-void clear_user_page(void *to, unsigned long address, struct page *page)
-{
- /* 'to' is a kernel virtual address (within the superpage
- mapping of the physical RAM). 'address' is the user virtual address
- where the 'to' page will be mapped after. This allows a custom
- mapping to be used to ensure that the new copy is placed in the
- right cache sets for the user to see it without having to bounce it
- out via memory.
- */
-
- if (((address ^ (unsigned long) to) & CACHE_OC_SYN_MASK) == 0) {
- /* No synonym problem on destination */
- sh64_page_clear(to);
- } else {
- sh64_clear_user_page_coloured(to, address);
- }
-}
-
-#endif /* !CONFIG_DCACHE_DISABLED */
-
-/****************************************************************************/
-
-void flush_dcache_page(struct page *page)
-{
- sh64_dcache_purge_phy_page(page_to_phys(page));
- wmb();
-}
-
-/****************************************************************************/
-
-void flush_icache_range(unsigned long start, unsigned long end)
-{
- /* Flush the range [start,end] of kernel virtual adddress space from
- the I-cache. The corresponding range must be purged from the
- D-cache also because the SH-5 doesn't have cache snooping between
- the caches. The addresses will be visible through the superpage
- mapping, therefore it's guaranteed that there no cache entries for
- the range in cache sets of the wrong colour.
-
- Primarily used for cohering the I-cache after a module has
- been loaded. */
-
- /* We also make sure to purge the same range from the D-cache since
- flush_page_to_ram() won't be doing this for us! */
-
- sh64_dcache_purge_kernel_range(start, end);
- wmb();
- sh64_icache_inv_kernel_range(start, end);
-}
-
-/****************************************************************************/
-
-void flush_icache_user_range(struct vm_area_struct *vma,
- struct page *page, unsigned long addr, int len)
-{
- /* Flush the range of user (defined by vma->vm_mm) address space
- starting at 'addr' for 'len' bytes from the cache. The range does
- not straddle a page boundary, the unique physical page containing
- the range is 'page'. This seems to be used mainly for invalidating
- an address range following a poke into the program text through the
- ptrace() call from another process (e.g. for BRK instruction
- insertion). */
-
- sh64_dcache_purge_coloured_phy_page(page_to_phys(page), addr);
- mb();
-
- if (vma->vm_flags & VM_EXEC) {
- sh64_icache_inv_user_small_range(vma->vm_mm, addr, len);
- }
-}
-
-/*##########################################################################
- ARCH/SH64 PRIVATE CALLABLE API.
- ##########################################################################*/
-
-void flush_cache_sigtramp(unsigned long start, unsigned long end)
-{
- /* For the address range [start,end), write back the data from the
- D-cache and invalidate the corresponding region of the I-cache for
- the current process. Used to flush signal trampolines on the stack
- to make them executable. */
-
- sh64_dcache_wback_current_user_range(start, end);
- wmb();
- sh64_icache_inv_current_user_range(start, end);
-}
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/extable.c
- *
- * Copyright (C) 2003 Richard Curnow
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- * Cloned from the 2.5 SH version..
- */
-#include <linux/config.h>
-#include <linux/rwsem.h>
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-extern unsigned long copy_user_memcpy, copy_user_memcpy_end, __copy_user_fixup;
-
-static const struct exception_table_entry __copy_user_fixup_ex = {
- .fixup = (unsigned long)&__copy_user_fixup,
-};
-
-/* Some functions that may trap due to a bad user-mode address have too many loads
- and stores in them to make it at all practical to label each one and put them all in
- the main exception table.
-
- In particular, the fast memcpy routine is like this. It's fix-up is just to fall back
- to a slow byte-at-a-time copy, which is handled the conventional way. So it's functionally
- OK to just handle any trap occurring in the fast memcpy with that fixup. */
-static const struct exception_table_entry *check_exception_ranges(unsigned long addr)
-{
- if ((addr >= (unsigned long)©_user_memcpy) &&
- (addr <= (unsigned long)©_user_memcpy_end))
- return &__copy_user_fixup_ex;
-
- return NULL;
-}
-
-/* Simple binary search */
-const struct exception_table_entry *
-search_extable(const struct exception_table_entry *first,
- const struct exception_table_entry *last,
- unsigned long value)
-{
- const struct exception_table_entry *mid;
-
- mid = check_exception_ranges(value);
- if (mid)
- return mid;
-
- while (first <= last) {
- long diff;
-
- mid = (last - first) / 2 + first;
- diff = mid->insn - value;
- if (diff == 0)
- return mid;
- else if (diff < 0)
- first = mid+1;
- else
- last = mid-1;
- }
-
- return NULL;
-}
-
-int fixup_exception(struct pt_regs *regs)
-{
- const struct exception_table_entry *fixup;
-
- fixup = search_exception_tables(regs->pc);
- if (fixup) {
- regs->pc = fixup->fixup;
- return 1;
- }
-
- return 0;
-}
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/fault.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Richard Curnow (/proc/tlb, bug fixes)
- * Copyright (C) 2003 Paul Mundt
- *
- */
-
-#include <linux/signal.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/tlb.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/hardirq.h>
-#include <asm/mmu_context.h>
-#include <asm/registers.h> /* required by inline asm statements */
-
-#if defined(CONFIG_SH64_PROC_TLB)
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-/* Count numbers of tlb refills in each region */
-static unsigned long long calls_to_update_mmu_cache = 0ULL;
-static unsigned long long calls_to_flush_tlb_page = 0ULL;
-static unsigned long long calls_to_flush_tlb_range = 0ULL;
-static unsigned long long calls_to_flush_tlb_mm = 0ULL;
-static unsigned long long calls_to_flush_tlb_all = 0ULL;
-unsigned long long calls_to_do_slow_page_fault = 0ULL;
-unsigned long long calls_to_do_fast_page_fault = 0ULL;
-
-/* Count size of ranges for flush_tlb_range */
-static unsigned long long flush_tlb_range_1 = 0ULL;
-static unsigned long long flush_tlb_range_2 = 0ULL;
-static unsigned long long flush_tlb_range_3_4 = 0ULL;
-static unsigned long long flush_tlb_range_5_7 = 0ULL;
-static unsigned long long flush_tlb_range_8_11 = 0ULL;
-static unsigned long long flush_tlb_range_12_15 = 0ULL;
-static unsigned long long flush_tlb_range_16_up = 0ULL;
-
-static unsigned long long page_not_present = 0ULL;
-
-#endif
-
-extern void die(const char *,struct pt_regs *,long);
-
-#define PFLAG(val,flag) (( (val) & (flag) ) ? #flag : "" )
-#define PPROT(flag) PFLAG(pgprot_val(prot),flag)
-
-static inline void print_prots(pgprot_t prot)
-{
- printk("prot is 0x%08lx\n",pgprot_val(prot));
-
- printk("%s %s %s %s %s\n",PPROT(_PAGE_SHARED),PPROT(_PAGE_READ),
- PPROT(_PAGE_EXECUTE),PPROT(_PAGE_WRITE),PPROT(_PAGE_USER));
-}
-
-static inline void print_vma(struct vm_area_struct *vma)
-{
- printk("vma start 0x%08lx\n", vma->vm_start);
- printk("vma end 0x%08lx\n", vma->vm_end);
-
- print_prots(vma->vm_page_prot);
- printk("vm_flags 0x%08lx\n", vma->vm_flags);
-}
-
-static inline void print_task(struct task_struct *tsk)
-{
- printk("Task pid %d\n", tsk->pid);
-}
-
-static pte_t *lookup_pte(struct mm_struct *mm, unsigned long address)
-{
- pgd_t *dir;
- pmd_t *pmd;
- pte_t *pte;
- pte_t entry;
-
- dir = pgd_offset(mm, address);
- if (pgd_none(*dir)) {
- return NULL;
- }
-
- pmd = pmd_offset(dir, address);
- if (pmd_none(*pmd)) {
- return NULL;
- }
-
- pte = pte_offset_kernel(pmd, address);
- entry = *pte;
-
- if (pte_none(entry)) {
- return NULL;
- }
- if (!pte_present(entry)) {
- return NULL;
- }
-
- return pte;
-}
-
-/*
- * This routine handles page faults. It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- */
-asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
- unsigned long textaccess, unsigned long address)
-{
- struct task_struct *tsk;
- struct mm_struct *mm;
- struct vm_area_struct * vma;
- const struct exception_table_entry *fixup;
- pte_t *pte;
-
-#if defined(CONFIG_SH64_PROC_TLB)
- ++calls_to_do_slow_page_fault;
-#endif
-
- /* SIM
- * Note this is now called with interrupts still disabled
- * This is to cope with being called for a missing IO port
- * address with interupts disabled. This should be fixed as
- * soon as we have a better 'fast path' miss handler.
- *
- * Plus take care how you try and debug this stuff.
- * For example, writing debug data to a port which you
- * have just faulted on is not going to work.
- */
-
- tsk = current;
- mm = tsk->mm;
-
- /* Not an IO address, so reenable interrupts */
- sti();
-
- /*
- * If we're in an interrupt or have no user
- * context, we must not take the fault..
- */
- if (in_interrupt() || !mm)
- goto no_context;
-
- /* TLB misses upon some cache flushes get done under cli() */
- down_read(&mm->mmap_sem);
-
- vma = find_vma(mm, address);
-
- if (!vma) {
-#ifdef DEBUG_FAULT
- print_task(tsk);
- printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
- __FUNCTION__,__LINE__,
- address,regs->pc,textaccess,writeaccess);
- show_regs(regs);
-#endif
- goto bad_area;
- }
- if (vma->vm_start <= address) {
- goto good_area;
- }
-
- if (!(vma->vm_flags & VM_GROWSDOWN)) {
-#ifdef DEBUG_FAULT
- print_task(tsk);
- printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
- __FUNCTION__,__LINE__,
- address,regs->pc,textaccess,writeaccess);
- show_regs(regs);
-
- print_vma(vma);
-#endif
- goto bad_area;
- }
- if (expand_stack(vma, address)) {
-#ifdef DEBUG_FAULT
- print_task(tsk);
- printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n",
- __FUNCTION__,__LINE__,
- address,regs->pc,textaccess,writeaccess);
- show_regs(regs);
-#endif
- goto bad_area;
- }
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
- if (writeaccess) {
- if (!(vma->vm_flags & VM_WRITE))
- goto bad_area;
- } else {
- if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
- goto bad_area;
- }
-
- if (textaccess) {
- if (!(vma->vm_flags & VM_EXEC))
- goto bad_area;
- }
-
- /*
- * If for any reason at all we couldn't handle the fault,
- * make sure we exit gracefully rather than endlessly redo
- * the fault.
- */
-survive:
- switch (handle_mm_fault(mm, vma, address, writeaccess)) {
- case 1:
- tsk->min_flt++;
- break;
- case 2:
- tsk->maj_flt++;
- break;
- case 0:
- goto do_sigbus;
- default:
- goto out_of_memory;
- }
- /* If we get here, the page fault has been handled. Do the TLB refill
- now from the newly-setup PTE, to avoid having to fault again right
- away on the same instruction. */
- pte = lookup_pte (mm, address);
- if (!pte) {
- /* From empirical evidence, we can get here, due to
- !pte_present(pte). (e.g. if a swap-in occurs, and the page
- is swapped back out again before the process that wanted it
- gets rescheduled?) */
- goto no_pte;
- }
-
- __do_tlb_refill(address, textaccess, pte);
-
-no_pte:
-
- up_read(&mm->mmap_sem);
- return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
-#ifdef DEBUG_FAULT
- printk("fault:bad area\n");
-#endif
- up_read(&mm->mmap_sem);
-
- if (user_mode(regs)) {
- printk("user mode bad_area address=%08lx pid=%d (%s) pc=%08lx opcode=%08lx\n",
- address, current->pid, current->comm,
- (unsigned long) regs->pc,
- *(unsigned long *)(u32)(regs->pc & ~3));
- show_regs(regs);
- if (tsk->pid == 1) {
- panic("INIT had user mode bad_area\n");
- }
- tsk->thread.address = address;
- tsk->thread.error_code = writeaccess;
- force_sig(SIGSEGV, tsk);
- return;
- }
-
-no_context:
-#ifdef DEBUG_FAULT
- printk("fault:No context\n");
-#endif
- /* Are we prepared to handle this kernel fault? */
- fixup = search_exception_tables(regs->pc);
- if (fixup) {
- regs->pc = fixup->fixup;
- return;
- }
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- *
- */
- if (address < PAGE_SIZE)
- printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
- else
- printk(KERN_ALERT "Unable to handle kernel paging request");
- printk(" at virtual address %08lx\n", address);
- printk(KERN_ALERT "pc = %08Lx%08Lx\n", regs->pc >> 32, regs->pc & 0xffffffff);
- die("Oops", regs, writeaccess);
- do_exit(SIGKILL);
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
- if (current->pid == 1) {
- panic("INIT out of memory\n");
- yield();
- goto survive;
- }
- printk("fault:Out of memory\n");
- up_read(&mm->mmap_sem);
- if (current->pid == 1) {
- yield();
- down_read(&mm->mmap_sem);
- goto survive;
- }
- printk("VM: killing process %s\n", tsk->comm);
- if (user_mode(regs))
- do_exit(SIGKILL);
- goto no_context;
-
-do_sigbus:
- printk("fault:Do sigbus\n");
- up_read(&mm->mmap_sem);
-
- /*
- * Send a sigbus, regardless of whether we were in kernel
- * or user mode.
- */
- tsk->thread.address = address;
- tsk->thread.error_code = writeaccess;
- tsk->thread.trap_no = 14;
- force_sig(SIGBUS, tsk);
-
- /* Kernel mode? Handle exceptions or die */
- if (!user_mode(regs))
- goto no_context;
-}
-
-
-void flush_tlb_all(void);
-
-void update_mmu_cache(struct vm_area_struct * vma,
- unsigned long address, pte_t pte)
-{
-#if defined(CONFIG_SH64_PROC_TLB)
- ++calls_to_update_mmu_cache;
-#endif
-
- /*
- * This appears to get called once for every pte entry that gets
- * established => I don't think it's efficient to try refilling the
- * TLBs with the pages - some may not get accessed even. Also, for
- * executable pages, it is impossible to determine reliably here which
- * TLB they should be mapped into (or both even).
- *
- * So, just do nothing here and handle faults on demand. In the
- * TLBMISS handling case, the refill is now done anyway after the pte
- * has been fixed up, so that deals with most useful cases.
- */
-}
-
-static void __flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
- unsigned long long match, pteh=0, lpage;
- unsigned long tlb;
- struct mm_struct *mm;
-
- mm = vma->vm_mm;
-
- if (mm->context == NO_CONTEXT)
- return;
-
- /*
- * Sign-extend based on neff.
- */
- lpage = (page & NEFF_SIGN) ? (page | NEFF_MASK) : page;
- match = ((mm->context & MMU_CONTEXT_ASID_MASK) << PTEH_ASID_SHIFT) | PTEH_VALID;
- match |= lpage;
-
- /* Do ITLB : don't bother for pages in non-exectutable VMAs */
- if (vma->vm_flags & VM_EXEC) {
- for_each_itlb_entry(tlb) {
- asm volatile ("getcfg %1, 0, %0"
- : "=r" (pteh)
- : "r" (tlb) );
-
- if (pteh == match) {
- __flush_tlb_slot(tlb);
- break;
- }
-
- }
- }
-
- /* Do DTLB : any page could potentially be in here. */
- for_each_dtlb_entry(tlb) {
- asm volatile ("getcfg %1, 0, %0"
- : "=r" (pteh)
- : "r" (tlb) );
-
- if (pteh == match) {
- __flush_tlb_slot(tlb);
- break;
- }
-
- }
-}
-
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
- unsigned long flags;
-
-#if defined(CONFIG_SH64_PROC_TLB)
- ++calls_to_flush_tlb_page;
-#endif
-
- if (vma->vm_mm) {
- page &= PAGE_MASK;
- local_irq_save(flags);
- __flush_tlb_page(vma, page);
- local_irq_restore(flags);
- }
-}
-
-void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end)
-{
- unsigned long flags;
- unsigned long long match, pteh=0, pteh_epn, pteh_low;
- unsigned long tlb;
- struct mm_struct *mm;
-
- mm = vma->vm_mm;
-
-#if defined(CONFIG_SH64_PROC_TLB)
- ++calls_to_flush_tlb_range;
-
- {
- unsigned long size = (end - 1) - start;
- size >>= 12; /* divide by PAGE_SIZE */
- size++; /* end=start+4096 => 1 page */
- switch (size) {
- case 1 : flush_tlb_range_1++; break;
- case 2 : flush_tlb_range_2++; break;
- case 3 ... 4 : flush_tlb_range_3_4++; break;
- case 5 ... 7 : flush_tlb_range_5_7++; break;
- case 8 ... 11 : flush_tlb_range_8_11++; break;
- case 12 ... 15 : flush_tlb_range_12_15++; break;
- default : flush_tlb_range_16_up++; break;
- }
- }
-#endif
-
- if (mm->context == NO_CONTEXT)
- return;
-
- local_irq_save(flags);
-
- start &= PAGE_MASK;
- end &= PAGE_MASK;
-
- match = ((mm->context & MMU_CONTEXT_ASID_MASK) << PTEH_ASID_SHIFT) | PTEH_VALID;
-
- /* Flush ITLB */
- for_each_itlb_entry(tlb) {
- asm volatile ("getcfg %1, 0, %0"
- : "=r" (pteh)
- : "r" (tlb) );
-
- pteh_epn = pteh & PAGE_MASK;
- pteh_low = pteh & ~PAGE_MASK;
-
- if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
- __flush_tlb_slot(tlb);
- }
-
- /* Flush DTLB */
- for_each_dtlb_entry(tlb) {
- asm volatile ("getcfg %1, 0, %0"
- : "=r" (pteh)
- : "r" (tlb) );
-
- pteh_epn = pteh & PAGE_MASK;
- pteh_low = pteh & ~PAGE_MASK;
-
- if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
- __flush_tlb_slot(tlb);
- }
-
- local_irq_restore(flags);
-}
-
-void flush_tlb_mm(struct mm_struct *mm)
-{
- unsigned long flags;
-
-#if defined(CONFIG_SH64_PROC_TLB)
- ++calls_to_flush_tlb_mm;
-#endif
-
- if (mm->context == NO_CONTEXT)
- return;
-
- local_irq_save(flags);
-
- mm->context=NO_CONTEXT;
- if(mm==current->mm)
- activate_context(mm);
-
- local_irq_restore(flags);
-
-}
-
-void flush_tlb_all(void)
-{
- /* Invalidate all, including shared pages, excluding fixed TLBs */
-
- unsigned long flags, tlb;
-
-#if defined(CONFIG_SH64_PROC_TLB)
- ++calls_to_flush_tlb_all;
-#endif
-
- local_irq_save(flags);
-
- /* Flush each ITLB entry */
- for_each_itlb_entry(tlb) {
- __flush_tlb_slot(tlb);
- }
-
- /* Flush each DTLB entry */
- for_each_dtlb_entry(tlb) {
- __flush_tlb_slot(tlb);
- }
-
- local_irq_restore(flags);
-}
-
-void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
- /* FIXME: Optimize this later.. */
- flush_tlb_all();
-}
-
-#if defined(CONFIG_SH64_PROC_TLB)
-/* Procfs interface to read the performance information */
-
-static int
-tlb_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void *data)
-{
- int len=0;
- len += sprintf(buf+len, "do_fast_page_fault called %12lld times\n", calls_to_do_fast_page_fault);
- len += sprintf(buf+len, "do_slow_page_fault called %12lld times\n", calls_to_do_slow_page_fault);
- len += sprintf(buf+len, "update_mmu_cache called %12lld times\n", calls_to_update_mmu_cache);
- len += sprintf(buf+len, "flush_tlb_page called %12lld times\n", calls_to_flush_tlb_page);
- len += sprintf(buf+len, "flush_tlb_range called %12lld times\n", calls_to_flush_tlb_range);
- len += sprintf(buf+len, "flush_tlb_mm called %12lld times\n", calls_to_flush_tlb_mm);
- len += sprintf(buf+len, "flush_tlb_all called %12lld times\n", calls_to_flush_tlb_all);
- len += sprintf(buf+len, "flush_tlb_range_sizes\n"
- " 1 : %12lld\n"
- " 2 : %12lld\n"
- " 3 - 4 : %12lld\n"
- " 5 - 7 : %12lld\n"
- " 8 - 11 : %12lld\n"
- "12 - 15 : %12lld\n"
- "16+ : %12lld\n",
- flush_tlb_range_1, flush_tlb_range_2, flush_tlb_range_3_4,
- flush_tlb_range_5_7, flush_tlb_range_8_11, flush_tlb_range_12_15,
- flush_tlb_range_16_up);
- len += sprintf(buf+len, "page not present %12lld times\n", page_not_present);
- *eof = 1;
- return len;
-}
-
-static int __init register_proc_tlb(void)
-{
- create_proc_read_entry("tlb", 0, NULL, tlb_proc_info, NULL);
- return 0;
-}
-
-__initcall(register_proc_tlb);
-
-#endif
+++ /dev/null
-/*
- * arch/sh64/mm/hugetlbpage.c
- *
- * SuperH HugeTLB page support.
- *
- * Cloned from sparc64 by Paul Mundt.
- *
- * Copyright (C) 2002, 2003 David S. Miller (davem@redhat.com)
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/hugetlb.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-#include <linux/slab.h>
-#include <linux/sysctl.h>
-
-#include <asm/mman.h>
-#include <asm/pgalloc.h>
-#include <asm/tlb.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-
-static pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
-{
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte = NULL;
-
- pgd = pgd_offset(mm, addr);
- if (pgd) {
- pmd = pmd_alloc(mm, pgd, addr);
- if (pmd)
- pte = pte_alloc_map(mm, pmd, addr);
- }
- return pte;
-}
-
-static pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
-{
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte = NULL;
-
- pgd = pgd_offset(mm, addr);
- if (pgd) {
- pmd = pmd_offset(pgd, addr);
- if (pmd)
- pte = pte_offset_map(pmd, addr);
- }
- return pte;
-}
-
-#define mk_pte_huge(entry) do { pte_val(entry) |= _PAGE_SZHUGE; } while (0)
-
-static void set_huge_pte(struct mm_struct *mm, struct vm_area_struct *vma,
- struct page *page, pte_t * page_table, int write_access)
-{
- unsigned long i;
- pte_t entry;
-
- mm->rss += (HPAGE_SIZE / PAGE_SIZE);
-
- if (write_access)
- entry = pte_mkwrite(pte_mkdirty(mk_pte(page,
- vma->vm_page_prot)));
- else
- entry = pte_wrprotect(mk_pte(page, vma->vm_page_prot));
- entry = pte_mkyoung(entry);
- mk_pte_huge(entry);
-
- for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
- set_pte(page_table, entry);
- page_table++;
-
- pte_val(entry) += PAGE_SIZE;
- }
-}
-
-/*
- * This function checks for proper alignment of input addr and len parameters.
- */
-int is_aligned_hugepage_range(unsigned long addr, unsigned long len)
-{
- if (len & ~HPAGE_MASK)
- return -EINVAL;
- if (addr & ~HPAGE_MASK)
- return -EINVAL;
- return 0;
-}
-
-int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
- struct vm_area_struct *vma)
-{
- pte_t *src_pte, *dst_pte, entry;
- struct page *ptepage;
- unsigned long addr = vma->vm_start;
- unsigned long end = vma->vm_end;
- int i;
-
- while (addr < end) {
- dst_pte = huge_pte_alloc(dst, addr);
- if (!dst_pte)
- goto nomem;
- src_pte = huge_pte_offset(src, addr);
- BUG_ON(!src_pte || pte_none(*src_pte));
- entry = *src_pte;
- ptepage = pte_page(entry);
- get_page(ptepage);
- for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
- set_pte(dst_pte, entry);
- pte_val(entry) += PAGE_SIZE;
- dst_pte++;
- }
- dst->rss += (HPAGE_SIZE / PAGE_SIZE);
- addr += HPAGE_SIZE;
- }
- return 0;
-
-nomem:
- return -ENOMEM;
-}
-
-int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
- struct page **pages, struct vm_area_struct **vmas,
- unsigned long *position, int *length, int i)
-{
- unsigned long vaddr = *position;
- int remainder = *length;
-
- WARN_ON(!is_vm_hugetlb_page(vma));
-
- while (vaddr < vma->vm_end && remainder) {
- if (pages) {
- pte_t *pte;
- struct page *page;
-
- pte = huge_pte_offset(mm, vaddr);
-
- /* hugetlb should be locked, and hence, prefaulted */
- BUG_ON(!pte || pte_none(*pte));
-
- page = pte_page(*pte);
-
- WARN_ON(!PageCompound(page));
-
- get_page(page);
- pages[i] = page;
- }
-
- if (vmas)
- vmas[i] = vma;
-
- vaddr += PAGE_SIZE;
- --remainder;
- ++i;
- }
-
- *length = remainder;
- *position = vaddr;
-
- return i;
-}
-
-struct page *follow_huge_addr(struct mm_struct *mm,
- unsigned long address, int write)
-{
- return ERR_PTR(-EINVAL);
-}
-
-int pmd_huge(pmd_t pmd)
-{
- return 0;
-}
-
-struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
- pmd_t *pmd, int write)
-{
- return NULL;
-}
-
-void unmap_hugepage_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- struct mm_struct *mm = vma->vm_mm;
- unsigned long address;
- pte_t *pte;
- struct page *page;
- int i;
-
- BUG_ON(start & (HPAGE_SIZE - 1));
- BUG_ON(end & (HPAGE_SIZE - 1));
-
- for (address = start; address < end; address += HPAGE_SIZE) {
- pte = huge_pte_offset(mm, address);
- BUG_ON(!pte);
- if (pte_none(*pte))
- continue;
- page = pte_page(*pte);
- put_page(page);
- for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
- pte_clear(pte);
- pte++;
- }
- }
- mm->rss -= (end - start) >> PAGE_SHIFT;
- flush_tlb_range(vma, start, end);
-}
-
-int hugetlb_prefault(struct address_space *mapping, struct vm_area_struct *vma)
-{
- struct mm_struct *mm = current->mm;
- unsigned long addr;
- int ret = 0;
-
- BUG_ON(vma->vm_start & ~HPAGE_MASK);
- BUG_ON(vma->vm_end & ~HPAGE_MASK);
-
- spin_lock(&mm->page_table_lock);
- for (addr = vma->vm_start; addr < vma->vm_end; addr += HPAGE_SIZE) {
- unsigned long idx;
- pte_t *pte = huge_pte_alloc(mm, addr);
- struct page *page;
-
- if (!pte) {
- ret = -ENOMEM;
- goto out;
- }
- if (!pte_none(*pte))
- continue;
-
- idx = ((addr - vma->vm_start) >> HPAGE_SHIFT)
- + (vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT));
- page = find_get_page(mapping, idx);
- if (!page) {
- /* charge the fs quota first */
- if (hugetlb_get_quota(mapping)) {
- ret = -ENOMEM;
- goto out;
- }
- page = alloc_huge_page();
- if (!page) {
- hugetlb_put_quota(mapping);
- ret = -ENOMEM;
- goto out;
- }
- ret = add_to_page_cache(page, mapping, idx, GFP_ATOMIC);
- if (! ret) {
- unlock_page(page);
- } else {
- hugetlb_put_quota(mapping);
- free_huge_page(page);
- goto out;
- }
- }
- set_huge_pte(mm, vma, page, pte, vma->vm_flags & VM_WRITE);
- }
-out:
- spin_unlock(&mm->page_table_lock);
- return ret;
-}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/init.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- */
-
-#include <linux/init.h>
-#include <linux/rwsem.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-
-#include <asm/mmu_context.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
-#include <asm/tlb.h>
-
-#ifdef CONFIG_BLK_DEV_INITRD
-#include <linux/blk.h>
-#endif
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
-/*
- * Cache of MMU context last used.
- */
-unsigned long mmu_context_cache;
-pgd_t * mmu_pdtp_cache;
-int after_bootmem = 0;
-
-/*
- * BAD_PAGE is the page that is used for page faults when linux
- * is out-of-memory. Older versions of linux just did a
- * do_exit(), but using this instead means there is less risk
- * for a process dying in kernel mode, possibly leaving an inode
- * unused etc..
- *
- * BAD_PAGETABLE is the accompanying page-table: it is initialized
- * to point to BAD_PAGE entries.
- *
- * ZERO_PAGE is a special page that is used for zero-initialized
- * data and COW.
- */
-
-extern unsigned char empty_zero_page[PAGE_SIZE];
-extern unsigned char empty_bad_page[PAGE_SIZE];
-extern pte_t empty_bad_pte_table[PTRS_PER_PTE];
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
-extern char _text, _etext, _edata, __bss_start, _end;
-extern char __init_begin, __init_end;
-
-/* It'd be good if these lines were in the standard header file. */
-#define START_PFN (NODE_DATA(0)->bdata->node_boot_start >> PAGE_SHIFT)
-#define MAX_LOW_PFN (NODE_DATA(0)->bdata->node_low_pfn)
-
-
-void show_mem(void)
-{
- int i, total = 0, reserved = 0;
- int shared = 0, cached = 0;
-
- printk("Mem-info:\n");
- show_free_areas();
- printk("Free swap: %6ldkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
- i = max_mapnr;
- while (i-- > 0) {
- total++;
- if (PageReserved(mem_map+i))
- reserved++;
- else if (PageSwapCache(mem_map+i))
- cached++;
- else if (page_count(mem_map+i))
- shared += page_count(mem_map+i) - 1;
- }
- printk("%d pages of RAM\n",total);
- printk("%d reserved pages\n",reserved);
- printk("%d pages shared\n",shared);
- printk("%d pages swap cached\n",cached);
- printk("%ld pages in page table cache\n",pgtable_cache_size);
-}
-
-/*
- * paging_init() sets up the page tables.
- *
- * head.S already did a lot to set up address translation for the kernel.
- * Here we comes with:
- * . MMU enabled
- * . ASID set (SR)
- * . some 512MB regions being mapped of which the most relevant here is:
- * . CACHED segment (ASID 0 [irrelevant], shared AND NOT user)
- * . possible variable length regions being mapped as:
- * . UNCACHED segment (ASID 0 [irrelevant], shared AND NOT user)
- * . All of the memory regions are placed, independently from the platform
- * on high addresses, above 0x80000000.
- * . swapper_pg_dir is already cleared out by the .space directive
- * in any case swapper does not require a real page directory since
- * it's all kernel contained.
- *
- * Those pesky NULL-reference errors in the kernel are then
- * dealt with by not mapping address 0x00000000 at all.
- *
- */
-void __init paging_init(void)
-{
- unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0};
-
- pgd_init((unsigned long)swapper_pg_dir);
- pgd_init((unsigned long)swapper_pg_dir +
- sizeof(pgd_t) * USER_PTRS_PER_PGD);
-
- mmu_context_cache = MMU_CONTEXT_FIRST_VERSION;
-
- /*
- * All memory is good as ZONE_NORMAL (fall-through) and ZONE_DMA.
- */
- zones_size[ZONE_DMA] = MAX_LOW_PFN - START_PFN;
-
- free_area_init_node(0, NODE_DATA(0), 0, zones_size, __MEMORY_START >> PAGE_SHIFT, 0);
-
- /* XXX: MRB-remove - this doesn't seem sane, should this be done somewhere else ?*/
- mem_map = NODE_DATA(0)->node_mem_map;
-}
-
-void __init mem_init(void)
-{
- int codesize, reservedpages, datasize, initsize;
- int tmp;
-
- max_mapnr = num_physpages = MAX_LOW_PFN - START_PFN;
- high_memory = (void *)__va(MAX_LOW_PFN * PAGE_SIZE);
-
- /*
- * Clear the zero-page.
- * This is not required but we might want to re-use
- * this very page to pass boot parameters, one day.
- */
- memset(empty_zero_page, 0, PAGE_SIZE);
-
- /* this will put all low memory onto the freelists */
- totalram_pages += free_all_bootmem_node(NODE_DATA(0));
- reservedpages = 0;
- for (tmp = 0; tmp < num_physpages; tmp++)
- /*
- * Only count reserved RAM pages
- */
- if (PageReserved(mem_map+tmp))
- reservedpages++;
-
- after_bootmem = 1;
-
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_etext;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk("Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
- (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
- max_mapnr << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10);
-}
-
-void free_initmem(void)
-{
- unsigned long addr;
-
- addr = (unsigned long)(&__init_begin);
- for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- set_page_count(virt_to_page(addr), 1);
- free_page(addr);
- totalram_pages++;
- }
- printk ("Freeing unused kernel memory: %ldk freed\n", (&__init_end - &__init_begin) >> 10);
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- unsigned long p;
- for (p = start; p < end; p += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(p));
- set_page_count(virt_to_page(p), 1);
- free_page(p);
- totalram_pages++;
- }
- printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
-}
-#endif
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/ioremap.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- * Mostly derived from arch/sh/mm/ioremap.c which, in turn is mostly
- * derived from arch/i386/mm/ioremap.c .
- *
- * (C) Copyright 1995 1996 Linus Torvalds
- */
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <asm/io.h>
-#include <asm/pgalloc.h>
-#include <asm/tlbflush.h>
-#include <linux/ioport.h>
-#include <linux/bootmem.h>
-#include <linux/proc_fs.h>
-
-static void shmedia_mapioaddr(unsigned long, unsigned long);
-static unsigned long shmedia_ioremap(struct resource *, u32, int);
-
-static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
- unsigned long phys_addr, unsigned long flags)
-{
- unsigned long end;
- unsigned long pfn;
- pgprot_t pgprot = __pgprot(_PAGE_PRESENT | _PAGE_READ |
- _PAGE_WRITE | _PAGE_DIRTY |
- _PAGE_ACCESSED | _PAGE_SHARED | flags);
-
- address &= ~PMD_MASK;
- end = address + size;
- if (end > PMD_SIZE)
- end = PMD_SIZE;
- if (address >= end)
- BUG();
-
- pfn = phys_addr >> PAGE_SHIFT;
-
- pr_debug(" %s: pte %p address %lx size %lx phys_addr %lx\n",
- __FUNCTION__,pte,address,size,phys_addr);
-
- do {
- if (!pte_none(*pte)) {
- printk("remap_area_pte: page already exists\n");
- BUG();
- }
-
- set_pte(pte, pfn_pte(pfn, pgprot));
- address += PAGE_SIZE;
- pfn++;
- pte++;
- } while (address && (address < end));
-}
-
-static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
- unsigned long phys_addr, unsigned long flags)
-{
- unsigned long end;
-
- address &= ~PGDIR_MASK;
- end = address + size;
-
- if (end > PGDIR_SIZE)
- end = PGDIR_SIZE;
-
- phys_addr -= address;
-
- if (address >= end)
- BUG();
-
- do {
- pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
- if (!pte)
- return -ENOMEM;
- remap_area_pte(pte, address, end - address, address + phys_addr, flags);
- address = (address + PMD_SIZE) & PMD_MASK;
- pmd++;
- } while (address && (address < end));
- return 0;
-}
-
-static int remap_area_pages(unsigned long address, unsigned long phys_addr,
- unsigned long size, unsigned long flags)
-{
- int error;
- pgd_t * dir;
- unsigned long end = address + size;
-
- phys_addr -= address;
- dir = pgd_offset_k(address);
- flush_cache_all();
- if (address >= end)
- BUG();
- spin_lock(&init_mm.page_table_lock);
- do {
- pmd_t *pmd = pmd_alloc(&init_mm, dir, address);
- error = -ENOMEM;
- if (!pmd)
- break;
- if (remap_area_pmd(pmd, address, end - address,
- phys_addr + address, flags)) {
- break;
- }
- error = 0;
- address = (address + PGDIR_SIZE) & PGDIR_MASK;
- dir++;
- } while (address && (address < end));
- spin_unlock(&init_mm.page_table_lock);
- flush_tlb_all();
- return 0;
-}
-
-/*
- * Generic mapping function (not visible outside):
- */
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
-{
- void * addr;
- struct vm_struct * area;
- unsigned long offset, last_addr;
-
- /* Don't allow wraparound or zero size */
- last_addr = phys_addr + size - 1;
- if (!size || last_addr < phys_addr)
- return NULL;
-
- /*
- * Mappings have to be page-aligned
- */
- offset = phys_addr & ~PAGE_MASK;
- phys_addr &= PAGE_MASK;
- size = PAGE_ALIGN(last_addr + 1) - phys_addr;
-
- /*
- * Ok, go for it..
- */
- area = get_vm_area(size, VM_IOREMAP);
- pr_debug("Get vm_area returns %p addr %p\n",area,area->addr);
- if (!area)
- return NULL;
- area->phys_addr = phys_addr;
- addr = area->addr;
- if (remap_area_pages((unsigned long)addr, phys_addr, size, flags)) {
- vunmap(addr);
- return NULL;
- }
- return (void *) (offset + (char *)addr);
-}
-
-void iounmap(void *addr)
-{
- struct vm_struct *area;
-
- vfree((void *) (PAGE_MASK & (unsigned long) addr));
- area = remove_vm_area((void *) (PAGE_MASK & (unsigned long) addr));
- if (!area) {
- printk(KERN_ERR "iounmap: bad address %p\n", addr);
- return;
- }
-
- kfree(area);
-}
-
-static struct resource shmedia_iomap = {
- .name = "shmedia_iomap",
- .start = IOBASE_VADDR,
- .end = IOBASE_END - 1,
-};
-
-static void shmedia_mapioaddr(unsigned long pa, unsigned long va);
-static void shmedia_unmapioaddr(unsigned long vaddr);
-static unsigned long shmedia_ioremap(struct resource *res, u32 pa, int sz);
-
-/*
- * We have the same problem as the SPARC, so lets have the same comment:
- * Our mini-allocator...
- * Boy this is gross! We need it because we must map I/O for
- * timers and interrupt controller before the kmalloc is available.
- */
-
-#define XNMLN 15
-#define XNRES 10
-
-struct xresource {
- struct resource xres; /* Must be first */
- int xflag; /* 1 == used */
- char xname[XNMLN+1];
-};
-
-static struct xresource xresv[XNRES];
-
-static struct xresource *xres_alloc(void)
-{
- struct xresource *xrp;
- int n;
-
- xrp = xresv;
- for (n = 0; n < XNRES; n++) {
- if (xrp->xflag == 0) {
- xrp->xflag = 1;
- return xrp;
- }
- xrp++;
- }
- return NULL;
-}
-
-static void xres_free(struct xresource *xrp)
-{
- xrp->xflag = 0;
-}
-
-static struct resource *shmedia_find_resource(struct resource *root,
- unsigned long vaddr)
-{
- struct resource *res;
-
- for (res = root->child; res; res = res->sibling)
- if (res->start <= vaddr && res->end >= vaddr)
- return res;
-
- return NULL;
-}
-
-static unsigned long shmedia_alloc_io(unsigned long phys, unsigned long size,
- const char *name)
-{
- static int printed_full = 0;
- struct xresource *xres;
- struct resource *res;
- char *tack;
- int tlen;
-
- if (name == NULL) name = "???";
-
- if ((xres = xres_alloc()) != 0) {
- tack = xres->xname;
- res = &xres->xres;
- } else {
- if (!printed_full) {
- printk("%s: done with statics, switching to kmalloc\n",
- __FUNCTION__);
- printed_full = 1;
- }
- tlen = strlen(name);
- tack = kmalloc(sizeof (struct resource) + tlen + 1, GFP_KERNEL);
- if (!tack)
- return -ENOMEM;
- memset(tack, 0, sizeof(struct resource));
- res = (struct resource *) tack;
- tack += sizeof (struct resource);
- }
-
- strncpy(tack, name, XNMLN);
- tack[XNMLN] = 0;
- res->name = tack;
-
- return shmedia_ioremap(res, phys, size);
-}
-
-static unsigned long shmedia_ioremap(struct resource *res, u32 pa, int sz)
-{
- unsigned long offset = ((unsigned long) pa) & (~PAGE_MASK);
- unsigned long round_sz = (offset + sz + PAGE_SIZE-1) & PAGE_MASK;
- unsigned long va;
- unsigned int psz;
-
- if (allocate_resource(&shmedia_iomap, res, round_sz,
- shmedia_iomap.start, shmedia_iomap.end,
- PAGE_SIZE, NULL, NULL) != 0) {
- panic("alloc_io_res(%s): cannot occupy\n",
- (res->name != NULL)? res->name: "???");
- }
-
- va = res->start;
- pa &= PAGE_MASK;
-
- psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE;
-
- /* log at boot time ... */
- printk("mapioaddr: %6s [%2d page%s] va 0x%08lx pa 0x%08x\n",
- ((res->name != NULL) ? res->name : "???"),
- psz, psz == 1 ? " " : "s", va, pa);
-
- for (psz = res->end - res->start + 1; psz != 0; psz -= PAGE_SIZE) {
- shmedia_mapioaddr(pa, va);
- va += PAGE_SIZE;
- pa += PAGE_SIZE;
- }
-
- res->start += offset;
- res->end = res->start + sz - 1; /* not strictly necessary.. */
-
- return res->start;
-}
-
-static void shmedia_free_io(struct resource *res)
-{
- unsigned long len = res->end - res->start + 1;
-
- BUG_ON((len & (PAGE_SIZE - 1)) != 0);
-
- while (len) {
- len -= PAGE_SIZE;
- shmedia_unmapioaddr(res->start + len);
- }
-
- release_resource(res);
-}
-
-static void *sh64_get_page(void)
-{
- extern int after_bootmem;
- void *page;
-
- if (after_bootmem) {
- page = (void *)get_zeroed_page(GFP_ATOMIC);
- } else {
- page = alloc_bootmem_pages(PAGE_SIZE);
- }
-
- if (!page || ((unsigned long)page & ~PAGE_MASK))
- panic("sh64_get_page: Out of memory already?\n");
-
- return page;
-}
-
-static void shmedia_mapioaddr(unsigned long pa, unsigned long va)
-{
- pgd_t *pgdp;
- pmd_t *pmdp;
- pte_t *ptep, pte;
- pgprot_t prot;
- unsigned long flags = 1; /* 1 = CB0-1 device */
-
- pr_debug("shmedia_mapiopage pa %08lx va %08lx\n", pa, va);
-
- pgdp = pgd_offset_k(va);
- if (pgd_none(*pgdp) || !pgd_present(*pgdp)) {
- pmdp = (pmd_t *)sh64_get_page();
- set_pgd(pgdp, __pgd((unsigned long)pmdp | _KERNPG_TABLE));
- }
-
- pmdp = pmd_offset(pgdp, va);
- if (pmd_none(*pmdp) || !pmd_present(*pmdp) ) {
- ptep = (pte_t *)sh64_get_page();
- set_pmd(pmdp, __pmd((unsigned long)ptep + _PAGE_TABLE));
- }
-
- prot = __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE |
- _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_SHARED | flags);
-
- pte = pfn_pte(pa >> PAGE_SHIFT, prot);
- ptep = pte_offset_kernel(pmdp, va);
-
- if (!pte_none(*ptep) &&
- pte_val(*ptep) != pte_val(pte))
- pte_ERROR(*ptep);
-
- set_pte(ptep, pte);
-
- flush_tlb_kernel_range(va, PAGE_SIZE);
-}
-
-static void shmedia_unmapioaddr(unsigned long vaddr)
-{
- pgd_t *pgdp;
- pmd_t *pmdp;
- pte_t *ptep;
-
- pgdp = pgd_offset_k(vaddr);
- pmdp = pmd_offset(pgdp, vaddr);
-
- if (pmd_none(*pmdp) || pmd_bad(*pmdp))
- return;
-
- ptep = pte_offset_kernel(pmdp, vaddr);
-
- if (pte_none(*ptep) || !pte_present(*ptep))
- return;
-
- clear_page((void *)ptep);
- pte_clear(ptep);
-}
-
-unsigned long onchip_remap(unsigned long phys, unsigned long size, const char *name)
-{
- if (size < PAGE_SIZE)
- size = PAGE_SIZE;
-
- return shmedia_alloc_io(phys, size, name);
-}
-
-void onchip_unmap(unsigned long vaddr)
-{
- struct resource *res;
- unsigned int psz;
-
- res = shmedia_find_resource(&shmedia_iomap, vaddr);
- if (!res) {
- printk(KERN_ERR "%s: Failed to free 0x%08lx\n",
- __FUNCTION__, vaddr);
- return;
- }
-
- psz = (res->end - res->start + (PAGE_SIZE - 1)) / PAGE_SIZE;
-
- printk(KERN_DEBUG "unmapioaddr: %6s [%2d page%s] freed\n",
- res->name, psz, psz == 1 ? " " : "s");
-
- shmedia_free_io(res);
-
- if ((char *)res >= (char *)xresv &&
- (char *)res < (char *)&xresv[XNRES]) {
- xres_free((struct xresource *)res);
- } else {
- kfree(res);
- }
-}
-
-#ifdef CONFIG_PROC_FS
-static int
-ioremap_proc_info(char *buf, char **start, off_t fpos, int length, int *eof,
- void *data)
-{
- char *p = buf, *e = buf + length;
- struct resource *r;
- const char *nm;
-
- for (r = ((struct resource *)data)->child; r != NULL; r = r->sibling) {
- if (p + 32 >= e) /* Better than nothing */
- break;
- if ((nm = r->name) == 0) nm = "???";
- p += sprintf(p, "%08lx-%08lx: %s\n", r->start, r->end, nm);
- }
-
- return p-buf;
-}
-#endif /* CONFIG_PROC_FS */
-
-static int __init register_proc_onchip(void)
-{
-#ifdef CONFIG_PROC_FS
- create_proc_read_entry("io_map",0,0, ioremap_proc_info, &shmedia_iomap);
-#endif
- return 0;
-}
-
-__initcall(register_proc_onchip);
+++ /dev/null
-/*
- * arch/sh64/mm/tlb.c
- *
- * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org>
- * Copyright (C) 2003 Richard Curnow <richard.curnow@superh.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <asm/page.h>
-#include <asm/tlb.h>
-#include <asm/mmu_context.h>
-
-/**
- * sh64_tlb_init
- *
- * Perform initial setup for the DTLB and ITLB.
- */
-int __init sh64_tlb_init(void)
-{
- /* Assign some sane DTLB defaults */
- cpu_data->dtlb.entries = 64;
- cpu_data->dtlb.step = 0x10;
-
- cpu_data->dtlb.first = DTLB_FIXED | cpu_data->dtlb.step;
- cpu_data->dtlb.next = cpu_data->dtlb.first;
-
- cpu_data->dtlb.last = DTLB_FIXED |
- ((cpu_data->dtlb.entries - 1) *
- cpu_data->dtlb.step);
-
- /* And again for the ITLB */
- cpu_data->itlb.entries = 64;
- cpu_data->itlb.step = 0x10;
-
- cpu_data->itlb.first = ITLB_FIXED | cpu_data->itlb.step;
- cpu_data->itlb.next = cpu_data->itlb.first;
- cpu_data->itlb.last = ITLB_FIXED |
- ((cpu_data->itlb.entries - 1) *
- cpu_data->itlb.step);
-
- return 0;
-}
-
-/**
- * sh64_next_free_dtlb_entry
- *
- * Find the next available DTLB entry
- */
-unsigned long long sh64_next_free_dtlb_entry(void)
-{
- return cpu_data->dtlb.next;
-}
-
-/**
- * sh64_get_wired_dtlb_entry
- *
- * Allocate a wired (locked-in) entry in the DTLB
- */
-unsigned long long sh64_get_wired_dtlb_entry(void)
-{
- unsigned long long entry = sh64_next_free_dtlb_entry();
-
- cpu_data->dtlb.first += cpu_data->dtlb.step;
- cpu_data->dtlb.next += cpu_data->dtlb.step;
-
- return entry;
-}
-
-/**
- * sh64_put_wired_dtlb_entry
- *
- * @entry: Address of TLB slot.
- *
- * Free a wired (locked-in) entry in the DTLB.
- *
- * Works like a stack, last one to allocate must be first one to free.
- */
-int sh64_put_wired_dtlb_entry(unsigned long long entry)
-{
- __flush_tlb_slot(entry);
-
- /*
- * We don't do any particularly useful tracking of wired entries,
- * so this approach works like a stack .. last one to be allocated
- * has to be the first one to be freed.
- *
- * We could potentially load wired entries into a list and work on
- * rebalancing the list periodically (which also entails moving the
- * contents of a TLB entry) .. though I have a feeling that this is
- * more trouble than it's worth.
- */
-
- /*
- * Entry must be valid .. we don't want any ITLB addresses!
- */
- if (entry <= DTLB_FIXED)
- return -EINVAL;
-
- /*
- * Next, check if we're within range to be freed. (ie, must be the
- * entry beneath the first 'free' entry!
- */
- if (entry < (cpu_data->dtlb.first - cpu_data->dtlb.step))
- return -EINVAL;
-
- /* If we are, then bring this entry back into the list */
- cpu_data->dtlb.first -= cpu_data->dtlb.step;
- cpu_data->dtlb.next = entry;
-
- return 0;
-}
-
-/**
- * sh64_setup_tlb_slot
- *
- * @config_addr: Address of TLB slot.
- * @eaddr: Virtual address.
- * @asid: Address Space Identifier.
- * @paddr: Physical address.
- *
- * Load up a virtual<->physical translation for @eaddr<->@paddr in the
- * pre-allocated TLB slot @config_addr (see sh64_get_wired_dtlb_entry).
- */
-inline void sh64_setup_tlb_slot(unsigned long long config_addr,
- unsigned long eaddr,
- unsigned long asid,
- unsigned long paddr)
-{
- unsigned long long pteh, ptel;
-
- /* Sign extension */
-#if (NEFF == 32)
- pteh = (unsigned long long)(signed long long)(signed long) eaddr;
-#else
-#error "Can't sign extend more than 32 bits yet"
-#endif
- pteh &= PAGE_MASK;
- pteh |= (asid << PTEH_ASID_SHIFT) | PTEH_VALID;
-#if (NEFF == 32)
- ptel = (unsigned long long)(signed long long)(signed long) paddr;
-#else
-#error "Can't sign extend more than 32 bits yet"
-#endif
- ptel &= PAGE_MASK;
- ptel |= (_PAGE_CACHABLE | _PAGE_READ | _PAGE_WRITE);
-
- asm volatile("putcfg %0, 1, %1\n\t"
- "putcfg %0, 0, %2\n"
- : : "r" (config_addr), "r" (ptel), "r" (pteh));
-}
-
-/**
- * sh64_teardown_tlb_slot
- *
- * @config_addr: Address of TLB slot.
- *
- * Teardown any existing mapping in the TLB slot @config_addr.
- */
-inline void sh64_teardown_tlb_slot(unsigned long long config_addr)
- __attribute__ ((alias("__flush_tlb_slot")));
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/tlbmiss.c
- *
- * Original code from fault.c
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * Fast PTE->TLB refill path
- * Copyright (C) 2003 Richard.Curnow@superh.com
- *
- * IMPORTANT NOTES :
- * The do_fast_page_fault function is called from a context in entry.S where very few registers
- * have been saved. In particular, the code in this file must be compiled not to use ANY
- * caller-save regiseters that are not part of the restricted save set. Also, it means that
- * code in this file must not make calls to functions elsewhere in the kernel, or else the
- * excepting context will see corruption in its caller-save registers. Plus, the entry.S save
- * area is non-reentrant, so this code has to run with SR.BL==1, i.e. no interrupts taken inside
- * it and panic on any exception.
- *
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-
-#include <asm/system.h>
-#include <asm/tlb.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/hardirq.h>
-#include <asm/mmu_context.h>
-#include <asm/registers.h> /* required by inline asm statements */
-
-/* Callable from fault.c, so not static */
-inline void __do_tlb_refill(unsigned long address,
- unsigned long long is_text_not_data, pte_t *pte)
-{
- unsigned long long ptel;
- unsigned long long pteh=0;
- struct tlb_info *tlbp;
- unsigned long long next;
-
- /* Get PTEL first */
- ptel = pte_val(*pte);
-
- /*
- * Set PTEH register
- */
- pteh = address & MMU_VPN_MASK;
-
- /* Sign extend based on neff. */
-#if (NEFF == 32)
- /* Faster sign extension */
- pteh = (unsigned long long)(signed long long)(signed long)pteh;
-#else
- /* General case */
- pteh = (pteh & NEFF_SIGN) ? (pteh | NEFF_MASK) : pteh;
-#endif
-
- /* Set the ASID. */
- pteh |= get_asid() << PTEH_ASID_SHIFT;
- pteh |= PTEH_VALID;
-
- /* Set PTEL register, set_pte has performed the sign extension */
- ptel &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */
- ptel |= _PAGE_FLAGS_HARDWARE_DEFAULT; /* add default flags */
-
- tlbp = is_text_not_data ? &(cpu_data->itlb) : &(cpu_data->dtlb);
- next = tlbp->next;
- __flush_tlb_slot(next);
- asm volatile ("putcfg %0,1,%2\n\n\t"
- "putcfg %0,0,%1\n"
- : : "r" (next), "r" (pteh), "r" (ptel) );
-
- next += TLB_STEP;
- if (next > tlbp->last) next = tlbp->first;
- tlbp->next = next;
-
-}
-
-static int handle_vmalloc_fault(struct mm_struct *mm, unsigned long protection_flags,
- unsigned long long textaccess,
- unsigned long address)
-{
- pgd_t *dir;
- pmd_t *pmd;
- static pte_t *pte;
- pte_t entry;
-
- dir = pgd_offset_k(address);
- pmd = pmd_offset(dir, address);
-
- if (pmd_none(*pmd)) {
- return 0;
- }
-
- if (pmd_bad(*pmd)) {
- pmd_clear(pmd);
- return 0;
- }
-
- pte = pte_offset_kernel(pmd, address);
- entry = *pte;
-
- if (pte_none(entry) || !pte_present(entry)) {
- return 0;
- }
-
- if ((pte_val(entry) & protection_flags) != protection_flags) {
- return 0;
- }
-
- __do_tlb_refill(address, textaccess, pte);
-
- return 1;
-}
-
-static int handle_tlbmiss(struct mm_struct *mm, unsigned long long protection_flags,
- unsigned long long textaccess,
- unsigned long address)
-{
- pgd_t *dir;
- pmd_t *pmd;
- pte_t *pte;
- pte_t entry;
-
- /* NB. The PGD currently only contains a single entry - there is no
- page table tree stored for the top half of the address space since
- virtual pages in that region should never be mapped in user mode.
- (In kernel mode, the only things in that region are the 512Mb super
- page (locked in), and vmalloc (modules) + I/O device pages (handled
- by handle_vmalloc_fault), so no PGD for the upper half is required
- by kernel mode either).
-
- See how mm->pgd is allocated and initialised in pgd_alloc to see why
- the next test is necessary. - RPC */
- if (address >= (unsigned long) TASK_SIZE) {
- /* upper half - never has page table entries. */
- return 0;
- }
- dir = pgd_offset(mm, address);
- if (pgd_none(*dir)) {
- return 0;
- }
- if (!pgd_present(*dir)) {
- return 0;
- }
-
- pmd = pmd_offset(dir, address);
- if (pmd_none(*pmd)) {
- return 0;
- }
- if (!pmd_present(*pmd)) {
- return 0;
- }
- pte = pte_offset_kernel(pmd, address);
- entry = *pte;
- if (pte_none(entry)) {
- return 0;
- }
- if (!pte_present(entry)) {
- return 0;
- }
-
- /* If the page doesn't have sufficient protection bits set to service the
- kind of fault being handled, there's not much point doing the TLB refill.
- Punt the fault to the general handler. */
- if ((pte_val(entry) & protection_flags) != protection_flags) {
- return 0;
- }
-
- __do_tlb_refill(address, textaccess, pte);
-
- return 1;
-}
-
-/* Put all this information into one structure so that everything is just arithmetic
- relative to a single base address. This reduces the number of movi/shori pairs needed
- just to load addresses of static data. */
-struct expevt_lookup {
- unsigned short protection_flags[8];
- unsigned char is_text_access[8];
- unsigned char is_write_access[8];
-};
-
-#define PRU (1<<9)
-#define PRW (1<<8)
-#define PRX (1<<7)
-#define PRR (1<<6)
-
-#define DIRTY (_PAGE_DIRTY | _PAGE_ACCESSED)
-#define YOUNG (_PAGE_ACCESSED)
-
-/* Sized as 8 rather than 4 to allow checking the PTE's PRU bit against whether
- the fault happened in user mode or privileged mode. */
-static struct expevt_lookup expevt_lookup_table = {
- .protection_flags = {PRX, PRX, 0, 0, PRR, PRR, PRW, PRW},
- .is_text_access = {1, 1, 0, 0, 0, 0, 0, 0}
-};
-
-/*
- This routine handles page faults that can be serviced just by refilling a
- TLB entry from an existing page table entry. (This case represents a very
- large majority of page faults.) Return 1 if the fault was successfully
- handled. Return 0 if the fault could not be handled. (This leads into the
- general fault handling in fault.c which deals with mapping file-backed
- pages, stack growth, segmentation faults, swapping etc etc)
- */
-asmlinkage int do_fast_page_fault(unsigned long long ssr_md, unsigned long long expevt,
- unsigned long address)
-{
- struct task_struct *tsk;
- struct mm_struct *mm;
- unsigned long long textaccess;
- unsigned long long protection_flags;
- unsigned long long index;
- unsigned long long expevt4;
-
- /* The next few lines implement a way of hashing EXPEVT into a small array index
- which can be used to lookup parameters specific to the type of TLBMISS being
- handled. Note:
- ITLBMISS has EXPEVT==0xa40
- RTLBMISS has EXPEVT==0x040
- WTLBMISS has EXPEVT==0x060
- */
-
- expevt4 = (expevt >> 4);
- /* TODO : xor ssr_md into this expression too. Then we can check that PRU is set
- when it needs to be. */
- index = expevt4 ^ (expevt4 >> 5);
- index &= 7;
- protection_flags = expevt_lookup_table.protection_flags[index];
- textaccess = expevt_lookup_table.is_text_access[index];
-
-#ifdef CONFIG_SH64_PROC_TLB
- ++calls_to_do_fast_page_fault;
-#endif
-
- /* SIM
- * Note this is now called with interrupts still disabled
- * This is to cope with being called for a missing IO port
- * address with interupts disabled. This should be fixed as
- * soon as we have a better 'fast path' miss handler.
- *
- * Plus take care how you try and debug this stuff.
- * For example, writing debug data to a port which you
- * have just faulted on is not going to work.
- */
-
- tsk = current;
- mm = tsk->mm;
-
- if ((address >= VMALLOC_START && address < VMALLOC_END) ||
- (address >= IOBASE_VADDR && address < IOBASE_END)) {
- if (ssr_md) {
- /* Process-contexts can never have this address range mapped */
- if (handle_vmalloc_fault(mm, protection_flags, textaccess, address)) {
- return 1;
- }
- }
- } else if (!in_interrupt() && mm) {
- if (handle_tlbmiss(mm, protection_flags, textaccess, address)) {
- return 1;
- }
- }
-
- return 0;
-}
-
+++ /dev/null
-
-menu "Profiling support"
- depends on EXPERIMENTAL
-
-config PROFILING
- bool "Profiling support (EXPERIMENTAL)"
- help
- Say Y here to enable the extended profiling support mechanisms used
- by profilers such as OProfile.
-
-
-config OPROFILE
- tristate "OProfile system profiling (EXPERIMENTAL)"
- depends on PROFILING
- help
- OProfile is a profiling system capable of profiling the
- whole system, include the kernel, kernel modules, libraries,
- and applications.
-
- If unsure, say N.
-
-endmenu
-
+++ /dev/null
-obj-$(CONFIG_OPROFILE) += oprofile.o
-
-DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
- oprof.o cpu_buffer.o buffer_sync.o \
- event_buffer.o oprofile_files.o \
- oprofilefs.o oprofile_stats.o \
- timer_int.o )
-
-profdrvr-y := op_model_null.o
-
-oprofile-y := $(DRIVER_OBJS) $(profdrvr-y)
-
+++ /dev/null
-/*
- * arch/sh/oprofile/op_model_null.c
- *
- * Copyright (C) 2003 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kernel.h>
-#include <linux/oprofile.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-
-int __init oprofile_arch_init(struct oprofile_operations **ops)
-{
- return -ENODEV;
-}
-
-void oprofile_arch_exit(void)
-{
-}
-
+++ /dev/null
-/* clear_page.S: UltraSparc optimized clear page.
- *
- * Copyright (C) 1996, 1998, 1999, 2000, 2004 David S. Miller (davem@redhat.com)
- * Copyright (C) 1997 Jakub Jelinek (jakub@redhat.com)
- */
-
-#include <asm/visasm.h>
-#include <asm/thread_info.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/spitfire.h>
-
- /* What we used to do was lock a TLB entry into a specific
- * TLB slot, clear the page with interrupts disabled, then
- * restore the original TLB entry. This was great for
- * disturbing the TLB as little as possible, but it meant
- * we had to keep interrupts disabled for a long time.
- *
- * Now, we simply use the normal TLB loading mechanism,
- * and this makes the cpu choose a slot all by itself.
- * Then we do a normal TLB flush on exit. We need only
- * disable preemption during the clear.
- */
-
-#define TTE_BITS_TOP (_PAGE_VALID | _PAGE_SZBITS)
-#define TTE_BITS_BOTTOM (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W)
-
- .text
-
- .globl _clear_page
-_clear_page: /* %o0=dest */
- ba,pt %xcc, clear_page_common
- clr %o4
-
- /* This thing is pretty important, it shows up
- * on the profiles via do_anonymous_page().
- */
- .align 32
- .globl clear_user_page
-clear_user_page: /* %o0=dest, %o1=vaddr */
- lduw [%g6 + TI_PRE_COUNT], %o2
- sethi %uhi(PAGE_OFFSET), %g2
- sethi %hi(PAGE_SIZE), %o4
-
- sllx %g2, 32, %g2
- sethi %uhi(TTE_BITS_TOP), %g3
-
- sllx %g3, 32, %g3
- sub %o0, %g2, %g1 ! paddr
-
- or %g3, TTE_BITS_BOTTOM, %g3
- and %o1, %o4, %o0 ! vaddr D-cache alias bit
-
- or %g1, %g3, %g1 ! TTE data
- sethi %hi(TLBTEMP_BASE), %o3
-
- add %o2, 1, %o4
- add %o0, %o3, %o0 ! TTE vaddr
-
- /* Disable preemption. */
- mov TLB_TAG_ACCESS, %g3
- stw %o4, [%g6 + TI_PRE_COUNT]
-
- /* Load TLB entry. */
- rdpr %pstate, %o4
- wrpr %o4, PSTATE_IE, %pstate
- stxa %o0, [%g3] ASI_DMMU
- stxa %g1, [%g0] ASI_DTLB_DATA_IN
- flush %g6
- wrpr %o4, 0x0, %pstate
-
- mov 1, %o4
-
-clear_page_common:
- VISEntryHalf
- membar #StoreLoad | #StoreStore | #LoadStore
- fzero %f0
- sethi %hi(PAGE_SIZE/64), %o1
- mov %o0, %g1 ! remember vaddr for tlbflush
- fzero %f2
- or %o1, %lo(PAGE_SIZE/64), %o1
- faddd %f0, %f2, %f4
- fmuld %f0, %f2, %f6
- faddd %f0, %f2, %f8
- fmuld %f0, %f2, %f10
-
- faddd %f0, %f2, %f12
- fmuld %f0, %f2, %f14
-1: stda %f0, [%o0 + %g0] ASI_BLK_P
- subcc %o1, 1, %o1
- bne,pt %icc, 1b
- add %o0, 0x40, %o0
- membar #Sync
- VISExitHalf
-
- brz,pn %o4, out
- nop
-
- stxa %g0, [%g1] ASI_DMMU_DEMAP
- membar #Sync
- stw %o2, [%g6 + TI_PRE_COUNT]
-
-out: retl
- nop
-
+++ /dev/null
-/* clear_page.S: UltraSparc optimized copy page.
- *
- * Copyright (C) 1996, 1998, 1999, 2000, 2004 David S. Miller (davem@redhat.com)
- * Copyright (C) 1997 Jakub Jelinek (jakub@redhat.com)
- */
-
-#include <asm/visasm.h>
-#include <asm/thread_info.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/spitfire.h>
-#include <asm/head.h>
-
- /* What we used to do was lock a TLB entry into a specific
- * TLB slot, clear the page with interrupts disabled, then
- * restore the original TLB entry. This was great for
- * disturbing the TLB as little as possible, but it meant
- * we had to keep interrupts disabled for a long time.
- *
- * Now, we simply use the normal TLB loading mechanism,
- * and this makes the cpu choose a slot all by itself.
- * Then we do a normal TLB flush on exit. We need only
- * disable preemption during the clear.
- */
-
-#define TTE_BITS_TOP (_PAGE_VALID | _PAGE_SZBITS)
-#define TTE_BITS_BOTTOM (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W)
-#define DCACHE_SIZE (PAGE_SIZE * 2)
-
-#if (PAGE_SHIFT == 13) || (PAGE_SHIFT == 19)
-#define PAGE_SIZE_REM 0x80
-#elif (PAGE_SHIFT == 16) || (PAGE_SHIFT == 22)
-#define PAGE_SIZE_REM 0x100
-#else
-#error Wrong PAGE_SHIFT specified
-#endif
-
-#define TOUCH(reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7) \
- fmovd %reg0, %f48; fmovd %reg1, %f50; \
- fmovd %reg2, %f52; fmovd %reg3, %f54; \
- fmovd %reg4, %f56; fmovd %reg5, %f58; \
- fmovd %reg6, %f60; fmovd %reg7, %f62;
-
- .text
-
- .align 32
- .globl copy_user_page
-copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */
- lduw [%g6 + TI_PRE_COUNT], %o4
- sethi %uhi(PAGE_OFFSET), %g2
- sethi %hi(PAGE_SIZE), %o3
-
- sllx %g2, 32, %g2
- sethi %uhi(TTE_BITS_TOP), %g3
-
- sllx %g3, 32, %g3
- sub %o0, %g2, %g1 ! dest paddr
-
- sub %o1, %g2, %g2 ! src paddr
- or %g3, TTE_BITS_BOTTOM, %g3
-
- and %o2, %o3, %o0 ! vaddr D-cache alias bit
- or %g1, %g3, %g1 ! dest TTE data
-
- or %g2, %g3, %g2 ! src TTE data
- sethi %hi(TLBTEMP_BASE), %o3
-
- sethi %hi(DCACHE_SIZE), %o1
- add %o0, %o3, %o0 ! dest TTE vaddr
-
- add %o4, 1, %o2
- add %o0, %o1, %o1 ! src TTE vaddr
-
- /* Disable preemption. */
- mov TLB_TAG_ACCESS, %g3
- stw %o2, [%g6 + TI_PRE_COUNT]
-
- /* Load TLB entries. */
- rdpr %pstate, %o2
- wrpr %o2, PSTATE_IE, %pstate
- stxa %o0, [%g3] ASI_DMMU
- stxa %g1, [%g0] ASI_DTLB_DATA_IN
- membar #Sync
- stxa %o1, [%g3] ASI_DMMU
- stxa %g2, [%g0] ASI_DTLB_DATA_IN
- membar #Sync
- wrpr %o2, 0x0, %pstate
-
- BRANCH_IF_ANY_CHEETAH(g3,o2,1f)
- ba,pt %xcc, 9f
- nop
-
-1:
- VISEntryHalf
- membar #StoreLoad | #StoreStore | #LoadStore
- sethi %hi((PAGE_SIZE/64)-2), %o2
- mov %o0, %g1
- prefetch [%o1 + 0x000], #one_read
- or %o2, %lo((PAGE_SIZE/64)-2), %o2
- prefetch [%o1 + 0x040], #one_read
- prefetch [%o1 + 0x080], #one_read
- prefetch [%o1 + 0x0c0], #one_read
- ldd [%o1 + 0x000], %f0
- prefetch [%o1 + 0x100], #one_read
- ldd [%o1 + 0x008], %f2
- prefetch [%o1 + 0x140], #one_read
- ldd [%o1 + 0x010], %f4
- prefetch [%o1 + 0x180], #one_read
- fmovd %f0, %f16
- ldd [%o1 + 0x018], %f6
- fmovd %f2, %f18
- ldd [%o1 + 0x020], %f8
- fmovd %f4, %f20
- ldd [%o1 + 0x028], %f10
- fmovd %f6, %f22
- ldd [%o1 + 0x030], %f12
- fmovd %f8, %f24
- ldd [%o1 + 0x038], %f14
- fmovd %f10, %f26
- ldd [%o1 + 0x040], %f0
-1: ldd [%o1 + 0x048], %f2
- fmovd %f12, %f28
- ldd [%o1 + 0x050], %f4
- fmovd %f14, %f30
- stda %f16, [%o0] ASI_BLK_P
- ldd [%o1 + 0x058], %f6
- fmovd %f0, %f16
- ldd [%o1 + 0x060], %f8
- fmovd %f2, %f18
- ldd [%o1 + 0x068], %f10
- fmovd %f4, %f20
- ldd [%o1 + 0x070], %f12
- fmovd %f6, %f22
- ldd [%o1 + 0x078], %f14
- fmovd %f8, %f24
- ldd [%o1 + 0x080], %f0
- prefetch [%o1 + 0x180], #one_read
- fmovd %f10, %f26
- subcc %o2, 1, %o2
- add %o0, 0x40, %o0
- bne,pt %xcc, 1b
- add %o1, 0x40, %o1
-
- ldd [%o1 + 0x048], %f2
- fmovd %f12, %f28
- ldd [%o1 + 0x050], %f4
- fmovd %f14, %f30
- stda %f16, [%o0] ASI_BLK_P
- ldd [%o1 + 0x058], %f6
- fmovd %f0, %f16
- ldd [%o1 + 0x060], %f8
- fmovd %f2, %f18
- ldd [%o1 + 0x068], %f10
- fmovd %f4, %f20
- ldd [%o1 + 0x070], %f12
- fmovd %f6, %f22
- add %o0, 0x40, %o0
- ldd [%o1 + 0x078], %f14
- fmovd %f8, %f24
- fmovd %f10, %f26
- fmovd %f12, %f28
- fmovd %f14, %f30
- stda %f16, [%o0] ASI_BLK_P
- membar #Sync
- VISExitHalf
- ba,pt %xcc, 5f
- nop
-
-9:
- VISEntry
- ldub [%g6 + TI_FAULT_CODE], %g3
- mov %o0, %g1
- cmp %g3, 0
- rd %asi, %g3
- be,a,pt %icc, 1f
- wr %g0, ASI_BLK_P, %asi
- wr %g0, ASI_BLK_COMMIT_P, %asi
-1: ldda [%o1] ASI_BLK_P, %f0
- add %o1, 0x40, %o1
- ldda [%o1] ASI_BLK_P, %f16
- add %o1, 0x40, %o1
- sethi %hi(PAGE_SIZE), %o2
-1: TOUCH(f0, f2, f4, f6, f8, f10, f12, f14)
- ldda [%o1] ASI_BLK_P, %f32
- stda %f48, [%o0] %asi
- add %o1, 0x40, %o1
- sub %o2, 0x40, %o2
- add %o0, 0x40, %o0
- TOUCH(f16, f18, f20, f22, f24, f26, f28, f30)
- ldda [%o1] ASI_BLK_P, %f0
- stda %f48, [%o0] %asi
- add %o1, 0x40, %o1
- sub %o2, 0x40, %o2
- add %o0, 0x40, %o0
- TOUCH(f32, f34, f36, f38, f40, f42, f44, f46)
- ldda [%o1] ASI_BLK_P, %f16
- stda %f48, [%o0] %asi
- sub %o2, 0x40, %o2
- add %o1, 0x40, %o1
- cmp %o2, PAGE_SIZE_REM
- bne,pt %xcc, 1b
- add %o0, 0x40, %o0
-#if (PAGE_SHIFT == 16) || (PAGE_SHIFT == 22)
- TOUCH(f0, f2, f4, f6, f8, f10, f12, f14)
- ldda [%o1] ASI_BLK_P, %f32
- stda %f48, [%o0] %asi
- add %o1, 0x40, %o1
- sub %o2, 0x40, %o2
- add %o0, 0x40, %o0
- TOUCH(f16, f18, f20, f22, f24, f26, f28, f30)
- ldda [%o1] ASI_BLK_P, %f0
- stda %f48, [%o0] %asi
- add %o1, 0x40, %o1
- sub %o2, 0x40, %o2
- add %o0, 0x40, %o0
- membar #Sync
- stda %f32, [%o0] %asi
- add %o0, 0x40, %o0
- stda %f0, [%o0] %asi
-#else
- membar #Sync
- stda %f0, [%o0] %asi
- add %o0, 0x40, %o0
- stda %f16, [%o0] %asi
-#endif
- membar #Sync
- wr %g3, 0x0, %asi
- VISExit
-
-5:
- stxa %g0, [%g1] ASI_DMMU_DEMAP
- membar #Sync
-
- sethi %hi(DCACHE_SIZE), %g2
- stxa %g0, [%g1 + %g2] ASI_DMMU_DEMAP
- membar #Sync
-
- retl
- stw %o4, [%g6 + TI_PRE_COUNT]
+++ /dev/null
-/* arch/sparc64/mm/tlb.c
- *
- * Copyright (C) 2004 David S. Miller <davem@redhat.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/percpu.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-#include <asm/mmu_context.h>
-#include <asm/tlb.h>
-
-/* Heavily inspired by the ppc64 code. */
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers) =
- { NULL, 0, 0, 0, 0, 0, { 0 }, { NULL }, };
-
-void flush_tlb_pending(void)
-{
- struct mmu_gather *mp = &__get_cpu_var(mmu_gathers);
-
- if (mp->tlb_nr) {
- unsigned long context = mp->mm->context;
-
- if (CTX_VALID(context)) {
-#ifdef CONFIG_SMP
- smp_flush_tlb_pending(mp->mm, mp->tlb_nr,
- &mp->vaddrs[0]);
-#else
- __flush_tlb_pending(CTX_HWBITS(context), mp->tlb_nr,
- &mp->vaddrs[0]);
-#endif
- }
- mp->tlb_nr = 0;
- }
-}
-
-void tlb_batch_add(pte_t *ptep, pte_t orig)
-{
- struct mmu_gather *mp = &__get_cpu_var(mmu_gathers);
- struct page *ptepage;
- struct mm_struct *mm;
- unsigned long vaddr, nr;
-
- ptepage = virt_to_page(ptep);
- mm = (struct mm_struct *) ptepage->mapping;
-
- /* It is more efficient to let flush_tlb_kernel_range()
- * handle these cases.
- */
- if (mm == &init_mm)
- return;
-
- vaddr = ptepage->index +
- (((unsigned long)ptep & ~PAGE_MASK) * PTRS_PER_PTE);
- if (pte_exec(orig))
- vaddr |= 0x1UL;
-
- if (pte_dirty(orig)) {
- unsigned long paddr, pfn = pte_pfn(orig);
- struct address_space *mapping;
- struct page *page;
-
- if (!pfn_valid(pfn))
- goto no_cache_flush;
-
- page = pfn_to_page(pfn);
- if (PageReserved(page))
- goto no_cache_flush;
-
- /* A real file page? */
- mapping = page_mapping(page);
- if (!mapping)
- goto no_cache_flush;
-
- paddr = (unsigned long) page_address(page);
- if ((paddr ^ vaddr) & (1 << 13))
- flush_dcache_page_all(mm, page);
- }
-
-no_cache_flush:
- if (mp->tlb_frozen)
- return;
-
- nr = mp->tlb_nr;
-
- if (unlikely(nr != 0 && mm != mp->mm)) {
- flush_tlb_pending();
- nr = 0;
- }
-
- if (nr == 0)
- mp->mm = mm;
-
- mp->vaddrs[nr] = vaddr;
- mp->tlb_nr = ++nr;
- if (nr >= TLB_BATCH_NR)
- flush_tlb_pending();
-}
-
-void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)
-{
- struct mmu_gather *mp = &__get_cpu_var(mmu_gathers);
- unsigned long nr = mp->tlb_nr;
- long s = start, e = end, vpte_base;
-
- if (mp->tlb_frozen)
- return;
-
- /* Nobody should call us with start below VM hole and end above.
- * See if it is really true.
- */
- BUG_ON(s > e);
-
-#if 0
- /* Currently free_pgtables guarantees this. */
- s &= PMD_MASK;
- e = (e + PMD_SIZE - 1) & PMD_MASK;
-#endif
- vpte_base = (tlb_type == spitfire ?
- VPTE_BASE_SPITFIRE :
- VPTE_BASE_CHEETAH);
-
- if (unlikely(nr != 0 && mm != mp->mm)) {
- flush_tlb_pending();
- nr = 0;
- }
-
- if (nr == 0)
- mp->mm = mm;
-
- start = vpte_base + (s >> (PAGE_SHIFT - 3));
- end = vpte_base + (e >> (PAGE_SHIFT - 3));
- while (start < end) {
- mp->vaddrs[nr] = start;
- mp->tlb_nr = ++nr;
- if (nr >= TLB_BATCH_NR) {
- flush_tlb_pending();
- nr = 0;
- }
- start += PAGE_SIZE;
- }
- if (nr)
- flush_tlb_pending();
-}
-
-unsigned long __ptrs_per_pmd(void)
-{
- if (test_thread_flag(TIF_32BIT))
- return (1UL << (32 - (PAGE_SHIFT-3) - PAGE_SHIFT));
- return REAL_PTRS_PER_PMD;
-}
+++ /dev/null
-/*
- * Copyright (C) 2002 Steve Schmidtke
- * Licensed under the GPL
- */
-
-#include <sys/types.h>
-#include <unistd.h>
-#include <errno.h>
-#include "hostaudio.h"
-#include "user_util.h"
-#include "kern_util.h"
-#include "user.h"
-#include "os.h"
-
-/* /dev/dsp file operations */
-
-ssize_t hostaudio_read_user(struct hostaudio_state *state, char *buffer,
- size_t count, loff_t *ppos)
-{
-#ifdef DEBUG
- printk("hostaudio: read_user called, count = %d\n", count);
-#endif
-
- return(os_read_file(state->fd, buffer, count));
-}
-
-ssize_t hostaudio_write_user(struct hostaudio_state *state, const char *buffer,
- size_t count, loff_t *ppos)
-{
-#ifdef DEBUG
- printk("hostaudio: write_user called, count = %d\n", count);
-#endif
-
- return(os_write_file(state->fd, buffer, count));
-}
-
-int hostaudio_ioctl_user(struct hostaudio_state *state, unsigned int cmd,
- unsigned long arg)
-{
-#ifdef DEBUG
- printk("hostaudio: ioctl_user called, cmd = %u\n", cmd);
-#endif
-
- return(os_ioctl_generic(state->fd, cmd, arg));
-}
-
-int hostaudio_open_user(struct hostaudio_state *state, int r, int w, char *dsp)
-{
-#ifdef DEBUG
- printk("hostaudio: open_user called\n");
-#endif
-
- state->fd = os_open_file(dsp, of_set_rw(OPENFLAGS(), r, w), 0);
-
- if(state->fd < 0) {
- printk("hostaudio_open_user failed to open '%s', err = %d\n",
- dsp, -state->fd);
- return(state->fd);
- }
-
- return(0);
-}
-
-int hostaudio_release_user(struct hostaudio_state *state)
-{
-#ifdef DEBUG
- printk("hostaudio: release called\n");
-#endif
- if(state->fd >= 0){
- os_close_file(state->fd);
- state->fd = -1;
- }
-
- return(0);
-}
-
-/* /dev/mixer file operations */
-
-int hostmixer_ioctl_mixdev_user(struct hostmixer_state *state,
- unsigned int cmd, unsigned long arg)
-{
-#ifdef DEBUG
- printk("hostmixer: ioctl_user called cmd = %u\n",cmd);
-#endif
-
- return(os_ioctl_generic(state->fd, cmd, arg));
-}
-
-int hostmixer_open_mixdev_user(struct hostmixer_state *state, int r, int w,
- char *mixer)
-{
-#ifdef DEBUG
- printk("hostmixer: open_user called\n");
-#endif
-
- state->fd = os_open_file(mixer, of_set_rw(OPENFLAGS(), r, w), 0);
-
- if(state->fd < 0) {
- printk("hostaudio_open_mixdev_user failed to open '%s', "
- "err = %d\n", mixer, state->fd);
- return(state->fd);
- }
-
- return(0);
-}
-
-int hostmixer_release_mixdev_user(struct hostmixer_state *state)
-{
-#ifdef DEBUG
- printk("hostmixer: release_user called\n");
-#endif
-
- if(state->fd >= 0){
- os_close_file(state->fd);
- state->fd = -1;
- }
-
- return 0;
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-/*
- * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
- * James Leu (jleu@mindspring.net).
- * Copyright (C) 2001 by various other people who didn't put their name here.
- * Licensed under the GPL.
- */
-
-#include "linux/config.h"
-#include "linux/kernel.h"
-#include "linux/netdevice.h"
-#include "linux/rtnetlink.h"
-#include "linux/skbuff.h"
-#include "linux/socket.h"
-#include "linux/spinlock.h"
-#include "linux/module.h"
-#include "linux/init.h"
-#include "linux/etherdevice.h"
-#include "linux/list.h"
-#include "linux/inetdevice.h"
-#include "linux/ctype.h"
-#include "linux/bootmem.h"
-#include "user_util.h"
-#include "kern_util.h"
-#include "net_kern.h"
-#include "net_user.h"
-#include "mconsole_kern.h"
-#include "init.h"
-#include "irq_user.h"
-
-static spinlock_t opened_lock = SPIN_LOCK_UNLOCKED;
-LIST_HEAD(opened);
-
-static int uml_net_rx(struct net_device *dev)
-{
- struct uml_net_private *lp = dev->priv;
- int pkt_len;
- struct sk_buff *skb;
-
- /* If we can't allocate memory, try again next round. */
- if ((skb = dev_alloc_skb(dev->mtu)) == NULL) {
- lp->stats.rx_dropped++;
- return 0;
- }
-
- skb->dev = dev;
- skb_put(skb, dev->mtu);
- skb->mac.raw = skb->data;
- pkt_len = (*lp->read)(lp->fd, &skb, lp);
-
- if (pkt_len > 0) {
- skb_trim(skb, pkt_len);
- skb->protocol = (*lp->protocol)(skb);
- netif_rx(skb);
-
- lp->stats.rx_bytes += skb->len;
- lp->stats.rx_packets++;
- return pkt_len;
- }
-
- kfree_skb(skb);
- return pkt_len;
-}
-
-void uml_net_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *dev = dev_id;
- struct uml_net_private *lp = dev->priv;
- int err;
-
- if(!netif_running(dev))
- return;
-
- spin_lock(&lp->lock);
- while((err = uml_net_rx(dev)) > 0) ;
- if(err < 0) {
- printk(KERN_ERR
- "Device '%s' read returned %d, shutting it down\n",
- dev->name, err);
- dev_close(dev);
- goto out;
- }
- reactivate_fd(lp->fd, UM_ETH_IRQ);
-
- out:
- spin_unlock(&lp->lock);
-}
-
-static int uml_net_open(struct net_device *dev)
-{
- struct uml_net_private *lp = dev->priv;
- char addr[sizeof("255.255.255.255\0")];
- int err;
-
- spin_lock(&lp->lock);
-
- if(lp->fd >= 0){
- err = -ENXIO;
- goto out;
- }
-
- if(!lp->have_mac){
- dev_ip_addr(dev, addr, &lp->mac[2]);
- set_ether_mac(dev, lp->mac);
- }
-
- lp->fd = (*lp->open)(&lp->user);
- if(lp->fd < 0){
- err = lp->fd;
- goto out;
- }
-
- err = um_request_irq(dev->irq, lp->fd, IRQ_READ, uml_net_interrupt,
- SA_INTERRUPT | SA_SHIRQ, dev->name, dev);
- if(err != 0){
- printk(KERN_ERR "uml_net_open: failed to get irq(%d)\n", err);
- if(lp->close != NULL) (*lp->close)(lp->fd, &lp->user);
- lp->fd = -1;
- err = -ENETUNREACH;
- }
-
- lp->tl.data = (unsigned long) &lp->user;
- netif_start_queue(dev);
-
- spin_lock(&opened_lock);
- list_add(&lp->list, &opened);
- spin_unlock(&opened_lock);
- MOD_INC_USE_COUNT;
- out:
- spin_unlock(&lp->lock);
- return(err);
-}
-
-static int uml_net_close(struct net_device *dev)
-{
- struct uml_net_private *lp = dev->priv;
-
- netif_stop_queue(dev);
- spin_lock(&lp->lock);
-
- free_irq(dev->irq, dev);
- if(lp->close != NULL) (*lp->close)(lp->fd, &lp->user);
- lp->fd = -1;
- spin_lock(&opened_lock);
- list_del(&lp->list);
- spin_unlock(&opened_lock);
-
- MOD_DEC_USE_COUNT;
- spin_unlock(&lp->lock);
- return 0;
-}
-
-static int uml_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct uml_net_private *lp = dev->priv;
- unsigned long flags;
- int len;
-
- netif_stop_queue(dev);
-
- spin_lock_irqsave(&lp->lock, flags);
-
- len = (*lp->write)(lp->fd, &skb, lp);
-
- if(len == skb->len) {
- lp->stats.tx_packets++;
- lp->stats.tx_bytes += skb->len;
- dev->trans_start = jiffies;
- netif_start_queue(dev);
-
- /* this is normally done in the interrupt when tx finishes */
- netif_wake_queue(dev);
- }
- else if(len == 0){
- netif_start_queue(dev);
- lp->stats.tx_dropped++;
- }
- else {
- netif_start_queue(dev);
- printk(KERN_ERR "uml_net_start_xmit: failed(%d)\n", len);
- }
-
- spin_unlock_irqrestore(&lp->lock, flags);
-
- dev_kfree_skb(skb);
-
- return 0;
-}
-
-static struct net_device_stats *uml_net_get_stats(struct net_device *dev)
-{
- struct uml_net_private *lp = dev->priv;
- return &lp->stats;
-}
-
-static void uml_net_set_multicast_list(struct net_device *dev)
-{
- if (dev->flags & IFF_PROMISC) return;
- else if (dev->mc_count) dev->flags |= IFF_ALLMULTI;
- else dev->flags &= ~IFF_ALLMULTI;
-}
-
-static void uml_net_tx_timeout(struct net_device *dev)
-{
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
-}
-
-static int uml_net_set_mac(struct net_device *dev, void *addr)
-{
- struct uml_net_private *lp = dev->priv;
- struct sockaddr *hwaddr = addr;
-
- spin_lock(&lp->lock);
- memcpy(dev->dev_addr, hwaddr->sa_data, ETH_ALEN);
- spin_unlock(&lp->lock);
-
- return(0);
-}
-
-static int uml_net_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct uml_net_private *lp = dev->priv;
- int err = 0;
-
- spin_lock(&lp->lock);
-
- new_mtu = (*lp->set_mtu)(new_mtu, &lp->user);
- if(new_mtu < 0){
- err = new_mtu;
- goto out;
- }
-
- dev->mtu = new_mtu;
-
- out:
- spin_unlock(&lp->lock);
- return err;
-}
-
-static int uml_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- return(-EINVAL);
-}
-
-void uml_net_user_timer_expire(unsigned long _conn)
-{
-#ifdef undef
- struct connection *conn = (struct connection *)_conn;
-
- dprintk(KERN_INFO "uml_net_user_timer_expire [%p]\n", conn);
- do_connect(conn);
-#endif
-}
-
-/*
- * default do nothing hard header packet routines for struct net_device init.
- * real ethernet transports will overwrite with real routines.
- */
-static int uml_net_hard_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, void *daddr, void *saddr, unsigned len)
-{
- return(0); /* no change */
-}
-
-static int uml_net_rebuild_header(struct sk_buff *skb)
-{
- return(0); /* ignore */
-}
-
-static int uml_net_header_cache(struct neighbour *neigh, struct hh_cache *hh)
-{
- return(-1); /* fail */
-}
-
-static void uml_net_header_cache_update(struct hh_cache *hh,
- struct net_device *dev, unsigned char * haddr)
-{
- /* ignore */
-}
-
-static int uml_net_header_parse(struct sk_buff *skb, unsigned char *haddr)
-{
- return(0); /* nothing */
-}
-
-static spinlock_t devices_lock = SPIN_LOCK_UNLOCKED;
-static struct list_head devices = LIST_HEAD_INIT(devices);
-
-static int eth_configure(int n, void *init, char *mac,
- struct transport *transport)
-{
- struct uml_net *device;
- struct net_device *dev;
- struct uml_net_private *lp;
- int err, size;
-
- size = transport->private_size + sizeof(struct uml_net_private) +
- sizeof(((struct uml_net_private *) 0)->user);
-
- device = kmalloc(sizeof(*device), GFP_KERNEL);
- if (device == NULL) {
- printk(KERN_ERR "eth_configure failed to allocate uml_net\n");
- return(1);
- }
-
- memset(device, 0, sizeof(*device));
- INIT_LIST_HEAD(&device->list);
- device->index = n;
-
- spin_lock(&devices_lock);
- list_add(&device->list, &devices);
- spin_unlock(&devices_lock);
-
- if (setup_etheraddr(mac, device->mac))
- device->have_mac = 1;
-
- printk(KERN_INFO "Netdevice %d ", n);
- if (device->have_mac)
- printk("(%02x:%02x:%02x:%02x:%02x:%02x) ",
- device->mac[0], device->mac[1],
- device->mac[2], device->mac[3],
- device->mac[4], device->mac[5]);
- printk(": ");
- dev = alloc_etherdev(size);
- if (dev == NULL) {
- printk(KERN_ERR "eth_configure: failed to allocate device\n");
- return 1;
- }
-
- /* If this name ends up conflicting with an existing registered
- * netdevice, that is OK, register_netdev{,ice}() will notice this
- * and fail.
- */
- snprintf(dev->name, sizeof(dev->name), "eth%d", n);
- device->dev = dev;
-
- dev->hard_header = uml_net_hard_header;
- dev->rebuild_header = uml_net_rebuild_header;
- dev->hard_header_cache = uml_net_header_cache;
- dev->header_cache_update= uml_net_header_cache_update;
- dev->hard_header_parse = uml_net_header_parse;
-
- (*transport->kern->init)(dev, init);
-
- dev->mtu = transport->user->max_packet;
- dev->open = uml_net_open;
- dev->hard_start_xmit = uml_net_start_xmit;
- dev->stop = uml_net_close;
- dev->get_stats = uml_net_get_stats;
- dev->set_multicast_list = uml_net_set_multicast_list;
- dev->tx_timeout = uml_net_tx_timeout;
- dev->set_mac_address = uml_net_set_mac;
- dev->change_mtu = uml_net_change_mtu;
- dev->do_ioctl = uml_net_ioctl;
- dev->watchdog_timeo = (HZ >> 1);
- dev->irq = UM_ETH_IRQ;
-
- rtnl_lock();
- err = register_netdevice(dev);
- rtnl_unlock();
- if (err) {
- device->dev = NULL;
- /* XXX: should we call ->remove() here? */
- free_netdev(dev);
- return 1;
- }
- lp = dev->priv;
-
- INIT_LIST_HEAD(&lp->list);
- spin_lock_init(&lp->lock);
- lp->dev = dev;
- lp->fd = -1;
- lp->mac = { 0xfe, 0xfd, 0x0, 0x0, 0x0, 0x0 };
- lp->have_mac = device->have_mac;
- lp->protocol = transport->kern->protocol;
- lp->open = transport->user->open;
- lp->close = transport->user->close;
- lp->remove = transport->user->remove;
- lp->read = transport->kern->read;
- lp->write = transport->kern->write;
- lp->add_address = transport->user->add_address;
- lp->delete_address = transport->user->delete_address;
- lp->set_mtu = transport->user->set_mtu;
-
- init_timer(&lp->tl);
- lp->tl.function = uml_net_user_timer_expire;
- if (lp->have_mac)
- memcpy(lp->mac, device->mac, sizeof(lp->mac));
-
- if (transport->user->init)
- (*transport->user->init)(&lp->user, dev);
-
- if (device->have_mac)
- set_ether_mac(dev, device->mac);
- return(0);
-}
-
-static struct uml_net *find_device(int n)
-{
- struct uml_net *device;
- struct list_head *ele;
-
- spin_lock(&devices_lock);
- list_for_each(ele, &devices){
- device = list_entry(ele, struct uml_net, list);
- if(device->index == n)
- goto out;
- }
- device = NULL;
- out:
- spin_unlock(&devices_lock);
- return(device);
-}
-
-static int eth_parse(char *str, int *index_out, char **str_out)
-{
- char *end;
- int n;
-
- n = simple_strtoul(str, &end, 0);
- if(end == str){
- printk(KERN_ERR "eth_setup: Failed to parse '%s'\n", str);
- return(1);
- }
- if(n < 0){
- printk(KERN_ERR "eth_setup: device %d is negative\n", n);
- return(1);
- }
- str = end;
- if(*str != '='){
- printk(KERN_ERR
- "eth_setup: expected '=' after device number\n");
- return(1);
- }
- str++;
- if(find_device(n)){
- printk(KERN_ERR "eth_setup: Device %d already configured\n",
- n);
- return(1);
- }
- if(index_out) *index_out = n;
- *str_out = str;
- return(0);
-}
-
-struct eth_init {
- struct list_head list;
- char *init;
- int index;
-};
-
-/* Filled in at boot time. Will need locking if the transports become
- * modular.
- */
-struct list_head transports = LIST_HEAD_INIT(transports);
-
-/* Filled in during early boot */
-struct list_head eth_cmd_line = LIST_HEAD_INIT(eth_cmd_line);
-
-static int check_transport(struct transport *transport, char *eth, int n,
- void **init_out, char **mac_out)
-{
- int len;
-
- len = strlen(transport->name);
- if(strncmp(eth, transport->name, len))
- return(0);
-
- eth += len;
- if(*eth == ',')
- eth++;
- else if(*eth != '\0')
- return(0);
-
- *init_out = kmalloc(transport->setup_size, GFP_KERNEL);
- if(*init_out == NULL)
- return(1);
-
- if(!transport->setup(eth, mac_out, *init_out)){
- kfree(*init_out);
- *init_out = NULL;
- }
- return(1);
-}
-
-void register_transport(struct transport *new)
-{
- struct list_head *ele, *next;
- struct eth_init *eth;
- void *init;
- char *mac = NULL;
- int match;
-
- list_add(&new->list, &transports);
-
- list_for_each_safe(ele, next, ð_cmd_line){
- eth = list_entry(ele, struct eth_init, list);
- match = check_transport(new, eth->init, eth->index, &init,
- &mac);
- if(!match)
- continue;
- else if(init != NULL){
- eth_configure(eth->index, init, mac, new);
- kfree(init);
- }
- list_del(ð->list);
- }
-}
-
-static int eth_setup_common(char *str, int index)
-{
- struct list_head *ele;
- struct transport *transport;
- void *init;
- char *mac = NULL;
-
- list_for_each(ele, &transports){
- transport = list_entry(ele, struct transport, list);
- if(!check_transport(transport, str, index, &init, &mac))
- continue;
- if(init != NULL){
- eth_configure(index, init, mac, transport);
- kfree(init);
- }
- return(1);
- }
- return(0);
-}
-
-static int eth_setup(char *str)
-{
- struct eth_init *new;
- int n, err;
-
- err = eth_parse(str, &n, &str);
- if(err) return(1);
-
- new = alloc_bootmem(sizeof(new));
- if (new == NULL){
- printk("eth_init : alloc_bootmem failed\n");
- return(1);
- }
-
- INIT_LIST_HEAD(&new->list);
- new->index = n;
- new->init = str;
-
- list_add_tail(&new->list, ð_cmd_line);
- return(1);
-}
-
-__setup("eth", eth_setup);
-__uml_help(eth_setup,
-"eth[0-9]+=<transport>,<options>\n"
-" Configure a network device.\n\n"
-);
-
-static int eth_init(void)
-{
- struct list_head *ele, *next;
- struct eth_init *eth;
-
- list_for_each_safe(ele, next, ð_cmd_line){
- eth = list_entry(ele, struct eth_init, list);
-
- if(eth_setup_common(eth->init, eth->index))
- list_del(ð->list);
- }
-
- return(1);
-}
-
-__initcall(eth_init);
-
-static int net_config(char *str)
-{
- int n, err;
-
- err = eth_parse(str, &n, &str);
- if(err) return(err);
-
- str = uml_strdup(str);
- if(str == NULL){
- printk(KERN_ERR "net_config failed to strdup string\n");
- return(-1);
- }
- err = !eth_setup_common(str, n);
- if(err)
- kfree(str);
- return(err);
-}
-
-static int net_remove(char *str)
-{
- struct uml_net *device;
- struct net_device *dev;
- struct uml_net_private *lp;
- char *end;
- int n;
-
- n = simple_strtoul(str, &end, 0);
- if((*end != '\0') || (end == str))
- return(-1);
-
- device = find_device(n);
- if(device == NULL)
- return(0);
-
- dev = device->dev;
- lp = dev->priv;
- if(lp->fd > 0) return(-1);
- if(lp->remove != NULL) (*lp->remove)(&lp->user);
- unregister_netdev(dev);
-
- list_del(&device->list);
- free_netdev(device);
- return(0);
-}
-
-static struct mc_device net_mc = {
- .name = "eth",
- .config = net_config,
- .get_config = NULL,
- .remove = net_remove,
-};
-
-static int uml_inetaddr_event(struct notifier_block *this, unsigned long event,
- void *ptr)
-{
- struct in_ifaddr *ifa = ptr;
- u32 addr = ifa->ifa_address;
- u32 netmask = ifa->ifa_mask;
- struct net_device *dev = ifa->ifa_dev->dev;
- struct uml_net_private *lp;
- void (*proc)(unsigned char *, unsigned char *, void *);
- unsigned char addr_buf[4], netmask_buf[4];
-
- if(dev->open != uml_net_open) return(NOTIFY_DONE);
-
- lp = dev->priv;
-
- proc = NULL;
- switch (event){
- case NETDEV_UP:
- proc = lp->add_address;
- break;
- case NETDEV_DOWN:
- proc = lp->delete_address;
- break;
- }
- if(proc != NULL){
- addr_buf[0] = addr & 0xff;
- addr_buf[1] = (addr >> 8) & 0xff;
- addr_buf[2] = (addr >> 16) & 0xff;
- addr_buf[3] = addr >> 24;
- netmask_buf[0] = netmask & 0xff;
- netmask_buf[1] = (netmask >> 8) & 0xff;
- netmask_buf[2] = (netmask >> 16) & 0xff;
- netmask_buf[3] = netmask >> 24;
- (*proc)(addr_buf, netmask_buf, &lp->user);
- }
- return(NOTIFY_DONE);
-}
-
-struct notifier_block uml_inetaddr_notifier = {
- .notifier_call = uml_inetaddr_event,
-};
-
-static int uml_net_init(void)
-{
- struct list_head *ele;
- struct uml_net_private *lp;
- struct in_device *ip;
- struct in_ifaddr *in;
-
- mconsole_register_dev(&net_mc);
- register_inetaddr_notifier(¨_inetaddr_notifier);
-
- /* Devices may have been opened already, so the uml_inetaddr_notifier
- * didn't get a chance to run for them. This fakes it so that
- * addresses which have already been set up get handled properly.
- */
- list_for_each(ele, &opened){
- lp = list_entry(ele, struct uml_net_private, list);
- ip = lp->dev->ip_ptr;
- if(ip == NULL) continue;
- in = ip->ifa_list;
- while(in != NULL){
- uml_inetaddr_event(NULL, NETDEV_UP, in);
- in = in->ifa_next;
- }
- }
-
- return(0);
-}
-
-__initcall(uml_net_init);
-
-static void close_devices(void)
-{
- struct list_head *ele;
- struct uml_net_private *lp;
-
- list_for_each(ele, &opened){
- lp = list_entry(ele, struct uml_net_private, list);
- if(lp->close != NULL) (*lp->close)(lp->fd, &lp->user);
- if(lp->remove != NULL) (*lp->remove)(&lp->user);
- }
-}
-
-__uml_exitcall(close_devices);
-
-int setup_etheraddr(char *str, unsigned char *addr)
-{
- char *end;
- int i;
-
- if(str == NULL)
- return(0);
- for(i=0;i<6;i++){
- addr[i] = simple_strtoul(str, &end, 16);
- if((end == str) ||
- ((*end != ':') && (*end != ',') && (*end != '\0'))){
- printk(KERN_ERR
- "setup_etheraddr: failed to parse '%s' "
- "as an ethernet address\n", str);
- return(0);
- }
- str = end + 1;
- }
- if(addr[0] & 1){
- printk(KERN_ERR
- "Attempt to assign a broadcast ethernet address to a "
- "device disallowed\n");
- return(0);
- }
- return(1);
-}
-
-void dev_ip_addr(void *d, char *buf, char *bin_buf)
-{
- struct net_device *dev = d;
- struct in_device *ip = dev->ip_ptr;
- struct in_ifaddr *in;
- u32 addr;
-
- if((ip == NULL) || ((in = ip->ifa_list) == NULL)){
- printk(KERN_WARNING "dev_ip_addr - device not assigned an "
- "IP address\n");
- return;
- }
- addr = in->ifa_address;
- sprintf(buf, "%d.%d.%d.%d", addr & 0xff, (addr >> 8) & 0xff,
- (addr >> 16) & 0xff, addr >> 24);
- if(bin_buf){
- bin_buf[0] = addr & 0xff;
- bin_buf[1] = (addr >> 8) & 0xff;
- bin_buf[2] = (addr >> 16) & 0xff;
- bin_buf[3] = addr >> 24;
- }
-}
-
-void set_ether_mac(void *d, unsigned char *addr)
-{
- struct net_device *dev = d;
-
- memcpy(dev->dev_addr, addr, ETH_ALEN);
-}
-
-struct sk_buff *ether_adjust_skb(struct sk_buff *skb, int extra)
-{
- if((skb != NULL) && (skb_tailroom(skb) < extra)){
- struct sk_buff *skb2;
-
- skb2 = skb_copy_expand(skb, 0, extra, GFP_ATOMIC);
- dev_kfree_skb(skb);
- skb = skb2;
- }
- if(skb != NULL) skb_put(skb, extra);
- return(skb);
-}
-
-void iter_addresses(void *d, void (*cb)(unsigned char *, unsigned char *,
- void *),
- void *arg)
-{
- struct net_device *dev = d;
- struct in_device *ip = dev->ip_ptr;
- struct in_ifaddr *in;
- unsigned char address[4], netmask[4];
-
- if(ip == NULL) return;
- in = ip->ifa_list;
- while(in != NULL){
- address[0] = in->ifa_address & 0xff;
- address[1] = (in->ifa_address >> 8) & 0xff;
- address[2] = (in->ifa_address >> 16) & 0xff;
- address[3] = in->ifa_address >> 24;
- netmask[0] = in->ifa_mask & 0xff;
- netmask[1] = (in->ifa_mask >> 8) & 0xff;
- netmask[2] = (in->ifa_mask >> 16) & 0xff;
- netmask[3] = in->ifa_mask >> 24;
- (*cb)(address, netmask, arg);
- in = in->ifa_next;
- }
-}
-
-int dev_netmask(void *d, void *m)
-{
- struct net_device *dev = d;
- struct in_device *ip = dev->ip_ptr;
- struct in_ifaddr *in;
- __u32 *mask_out = m;
-
- if(ip == NULL)
- return(1);
-
- in = ip->ifa_list;
- if(in == NULL)
- return(1);
-
- *mask_out = in->ifa_mask;
- return(0);
-}
-
-void *get_output_buffer(int *len_out)
-{
- void *ret;
-
- ret = (void *) __get_free_pages(GFP_KERNEL, 0);
- if(ret) *len_out = PAGE_SIZE;
- else *len_out = 0;
- return(ret);
-}
-
-void free_output_buffer(void *buffer)
-{
- free_pages((unsigned long) buffer, 0);
-}
-
-int tap_setup_common(char *str, char *type, char **dev_name, char **mac_out,
- char **gate_addr)
-{
- char *remain;
-
- remain = split_if_spec(str, dev_name, mac_out, gate_addr, NULL);
- if(remain != NULL){
- printk("tap_setup_common - Extra garbage on specification : "
- "'%s'\n", remain);
- return(1);
- }
-
- return(0);
-}
-
-unsigned short eth_protocol(struct sk_buff *skb)
-{
- return(eth_type_trans(skb, skb->dev));
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-/*
- * Copyright (C) 2002 Steve Schmidtke
- * Licensed under the GPL
- */
-
-#ifndef HOSTAUDIO_H
-#define HOSTAUDIO_H
-
-#define HOSTAUDIO_DEV_DSP "/dev/sound/dsp"
-#define HOSTAUDIO_DEV_MIXER "/dev/sound/mixer"
-
-struct hostaudio_state {
- int fd;
-};
-
-struct hostmixer_state {
- int fd;
-};
-
-/* UML user-side protoypes */
-extern ssize_t hostaudio_read_user(struct hostaudio_state *state, char *buffer,
- size_t count, loff_t *ppos);
-extern ssize_t hostaudio_write_user(struct hostaudio_state *state,
- const char *buffer, size_t count,
- loff_t *ppos);
-extern int hostaudio_ioctl_user(struct hostaudio_state *state,
- unsigned int cmd, unsigned long arg);
-extern int hostaudio_open_user(struct hostaudio_state *state, int r, int w,
- char *dsp);
-extern int hostaudio_release_user(struct hostaudio_state *state);
-extern int hostmixer_ioctl_mixdev_user(struct hostmixer_state *state,
- unsigned int cmd, unsigned long arg);
-extern int hostmixer_open_mixdev_user(struct hostmixer_state *state, int r,
- int w, char *mixer);
-extern int hostmixer_release_mixdev_user(struct hostmixer_state *state);
-
-#endif /* HOSTAUDIO_H */
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-#ifndef __MPROT_H__
-#define __MPROT_H__
-
-extern void no_access(unsigned long addr, unsigned int len);
-
-#endif
+++ /dev/null
-/*
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include "linux/config.h"
-
-#ifdef CONFIG_SMP
-
-#include "linux/sched.h"
-#include "linux/module.h"
-#include "linux/threads.h"
-#include "linux/interrupt.h"
-#include "linux/err.h"
-#include "asm/smp.h"
-#include "asm/processor.h"
-#include "asm/spinlock.h"
-#include "asm/hardirq.h"
-#include "user_util.h"
-#include "kern_util.h"
-#include "kern.h"
-#include "irq_user.h"
-#include "os.h"
-
-/* CPU online map, set by smp_boot_cpus */
-unsigned long cpu_online_map = cpumask_of_cpu(0);
-
-EXPORT_SYMBOL(cpu_online_map);
-
-/* Per CPU bogomips and other parameters
- * The only piece used here is the ipi pipe, which is set before SMP is
- * started and never changed.
- */
-struct cpuinfo_um cpu_data[NR_CPUS];
-
-spinlock_t um_bh_lock = SPIN_LOCK_UNLOCKED;
-
-atomic_t global_bh_count;
-
-/* Not used by UML */
-unsigned char global_irq_holder = NO_PROC_ID;
-unsigned volatile long global_irq_lock;
-
-/* Set when the idlers are all forked */
-int smp_threads_ready = 0;
-
-/* A statistic, can be a little off */
-int num_reschedules_sent = 0;
-
-/* Small, random number, never changed */
-unsigned long cache_decay_ticks = 5;
-
-/* Not changed after boot */
-struct task_struct *idle_threads[NR_CPUS];
-
-void smp_send_reschedule(int cpu)
-{
- write(cpu_data[cpu].ipi_pipe[1], "R", 1);
- num_reschedules_sent++;
-}
-
-static void show(char * str)
-{
- int cpu = smp_processor_id();
-
- printk(KERN_INFO "\n%s, CPU %d:\n", str, cpu);
-}
-
-#define MAXCOUNT 100000000
-
-static inline void wait_on_bh(void)
-{
- int count = MAXCOUNT;
- do {
- if (!--count) {
- show("wait_on_bh");
- count = ~0;
- }
- /* nothing .. wait for the other bh's to go away */
- } while (atomic_read(&global_bh_count) != 0);
-}
-
-/*
- * This is called when we want to synchronize with
- * bottom half handlers. We need to wait until
- * no other CPU is executing any bottom half handler.
- *
- * Don't wait if we're already running in an interrupt
- * context or are inside a bh handler.
- */
-void synchronize_bh(void)
-{
- if (atomic_read(&global_bh_count) && !in_interrupt())
- wait_on_bh();
-}
-
-void smp_send_stop(void)
-{
- int i;
-
- printk(KERN_INFO "Stopping all CPUs...");
- for(i = 0; i < num_online_cpus(); i++){
- if(i == current->thread_info->cpu)
- continue;
- write(cpu_data[i].ipi_pipe[1], "S", 1);
- }
- printk("done\n");
-}
-
-static cpumask_t smp_commenced_mask;
-static cpumask_t smp_callin_map = CPU_MASK_NONE;
-
-static int idle_proc(void *cpup)
-{
- int cpu = (int) cpup, err;
-
- err = os_pipe(cpu_data[cpu].ipi_pipe, 1, 1);
- if(err)
- panic("CPU#%d failed to create IPI pipe, errno = %d", cpu,
- -err);
-
- activate_ipi(cpu_data[cpu].ipi_pipe[0],
- current->thread.mode.tt.extern_pid);
-
- wmb();
- if (cpu_test_and_set(cpu, &smp_callin_map)) {
- printk("huh, CPU#%d already present??\n", cpu);
- BUG();
- }
-
- while (!cpu_isset(cpu, &smp_commenced_mask))
- cpu_relax();
-
- cpu_set(cpu, cpu_online_map);
- default_idle();
- return(0);
-}
-
-static struct task_struct *idle_thread(int cpu)
-{
- struct task_struct *new_task;
- unsigned char c;
-
- current->thread.request.u.thread.proc = idle_proc;
- current->thread.request.u.thread.arg = (void *) cpu;
- new_task = do_fork(CLONE_VM | CLONE_IDLETASK, 0, NULL, 0, NULL, NULL);
- if(IS_ERR(new_task)) panic("do_fork failed in idle_thread");
-
- cpu_tasks[cpu] = ((struct cpu_task)
- { .pid = new_task->thread.mode.tt.extern_pid,
- .task = new_task } );
- idle_threads[cpu] = new_task;
- CHOOSE_MODE(write(new_task->thread.mode.tt.switch_pipe[1], &c,
- sizeof(c)),
- ({ panic("skas mode doesn't support SMP"); }));
- return(new_task);
-}
-
-void smp_prepare_cpus(unsigned int maxcpus)
-{
- struct task_struct *idle;
- unsigned long waittime;
- int err, cpu;
-
- cpu_set(0, cpu_online_map);
- cpu_set(0, smp_callin_map);
-
- err = os_pipe(cpu_data[0].ipi_pipe, 1, 1);
- if(err) panic("CPU#0 failed to create IPI pipe, errno = %d", -err);
-
- activate_ipi(cpu_data[0].ipi_pipe[0],
- current->thread.mode.tt.extern_pid);
-
- for(cpu = 1; cpu < ncpus; cpu++){
- printk("Booting processor %d...\n", cpu);
-
- idle = idle_thread(cpu);
-
- init_idle(idle, cpu);
- unhash_process(idle);
-
- waittime = 200000000;
- while (waittime-- && !cpu_isset(cpu, smp_callin_map))
- cpu_relax();
-
- if (cpu_isset(cpu, smp_callin_map))
- printk("done\n");
- else printk("failed\n");
- }
-}
-
-void smp_prepare_boot_cpu(void)
-{
- cpu_set(smp_processor_id(), cpu_online_map);
-}
-
-int __cpu_up(unsigned int cpu)
-{
- cpu_set(cpu, smp_commenced_mask);
- while (!cpu_isset(cpu, cpu_online_map))
- mb();
- return(0);
-}
-
-int setup_profiling_timer(unsigned int multiplier)
-{
- printk(KERN_INFO "setup_profiling_timer\n");
- return(0);
-}
-
-void smp_call_function_slave(int cpu);
-
-void IPI_handler(int cpu)
-{
- unsigned char c;
- int fd;
-
- fd = cpu_data[cpu].ipi_pipe[0];
- while (read(fd, &c, 1) == 1) {
- switch (c) {
- case 'C':
- smp_call_function_slave(cpu);
- break;
-
- case 'R':
- set_tsk_need_resched(current);
- break;
-
- case 'S':
- printk("CPU#%d stopping\n", cpu);
- while(1)
- pause();
- break;
-
- default:
- printk("CPU#%d received unknown IPI [%c]!\n", cpu, c);
- break;
- }
- }
-}
-
-int hard_smp_processor_id(void)
-{
- return(pid_to_processor_id(os_getpid()));
-}
-
-static spinlock_t call_lock = SPIN_LOCK_UNLOCKED;
-static atomic_t scf_started;
-static atomic_t scf_finished;
-static void (*func)(void *info);
-static void *info;
-
-void smp_call_function_slave(int cpu)
-{
- atomic_inc(&scf_started);
- (*func)(info);
- atomic_inc(&scf_finished);
-}
-
-int smp_call_function(void (*_func)(void *info), void *_info, int nonatomic,
- int wait)
-{
- int cpus = num_online_cpus() - 1;
- int i;
-
- if (!cpus)
- return 0;
-
- spin_lock_bh(&call_lock);
- atomic_set(&scf_started, 0);
- atomic_set(&scf_finished, 0);
- func = _func;
- info = _info;
-
- for (i=0;i<NR_CPUS;i++)
- if((i != current->thread_info->cpu) &&
- cpu_isset(i, cpu_online_map))
- write(cpu_data[i].ipi_pipe[1], "C", 1);
-
- while (atomic_read(&scf_started) != cpus)
- barrier();
-
- if (wait)
- while (atomic_read(&scf_finished) != cpus)
- barrier();
-
- spin_unlock_bh(&call_lock);
- return 0;
-}
-
-#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-#include <linux/bitops.h>
-#include <linux/module.h>
-
-/**
- * find_next_bit - find the first set bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The maximum size to search
- */
-int find_next_bit(const unsigned long *addr, int size, int offset)
-{
- const unsigned long *p = addr + (offset >> 5);
- int set = 0, bit = offset & 31, res;
-
- if (bit) {
- /*
- * Look for nonzero in the first 32 bits:
- */
- __asm__("bsfl %1,%0\n\t"
- "jne 1f\n\t"
- "movl $32, %0\n"
- "1:"
- : "=r" (set)
- : "r" (*p >> bit));
- if (set < (32 - bit))
- return set + offset;
- set = 32 - bit;
- p++;
- }
- /*
- * No set bit yet, search remaining full words for a bit
- */
- res = find_first_bit (p, size - 32 * (p - addr));
- return (offset + set + res);
-}
-EXPORT_SYMBOL(find_next_bit);
-
-/**
- * find_next_zero_bit - find the first zero bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The maximum size to search
- */
-int find_next_zero_bit(const unsigned long *addr, int size, int offset)
-{
- unsigned long * p = ((unsigned long *) addr) + (offset >> 5);
- int set = 0, bit = offset & 31, res;
-
- if (bit) {
- /*
- * Look for zero in the first 32 bits.
- */
- __asm__("bsfl %1,%0\n\t"
- "jne 1f\n\t"
- "movl $32, %0\n"
- "1:"
- : "=r" (set)
- : "r" (~(*p >> bit)));
- if (set < (32 - bit))
- return set + offset;
- set = 32 - bit;
- p++;
- }
- /*
- * No zero yet, search remaining full bytes for a zero
- */
- res = find_first_zero_bit (p, size - 32 * (p - (unsigned long *) addr));
- return (offset + set + res);
-}
-EXPORT_SYMBOL(find_next_zero_bit);
+++ /dev/null
-/*
- * sys-i386/time.c
- * Created 25.9.2002 Sapan Bhatia
- *
- */
-
-unsigned long long time_stamp(void)
-{
- unsigned long low, high;
-
- asm("rdtsc" : "=a" (low), "=d" (high));
- return((((unsigned long long) high) << 32) + low);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-/*
- * Cryptographic API.
- *
- * Khazad Algorithm
- *
- * The Khazad algorithm was developed by Paulo S. L. M. Barreto and
- * Vincent Rijmen. It was a finalist in the NESSIE encryption contest.
- *
- * The original authors have disclaimed all copyright interest in this
- * code and thus put it in the public domain. The subsequent authors
- * have put this under the GNU General Public License.
- *
- * By Aaron Grothe ajgrothe@yahoo.com, August 1, 2004
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <asm/scatterlist.h>
-#include <linux/crypto.h>
-
-#define KHAZAD_KEY_SIZE 16
-#define KHAZAD_BLOCK_SIZE 8
-#define KHAZAD_ROUNDS 8
-
-struct khazad_ctx {
- u64 E[KHAZAD_ROUNDS + 1];
- u64 D[KHAZAD_ROUNDS + 1];
-};
-
-static const u64 T0[256] = {
- 0xbad3d268bbb96a01ULL, 0x54fc4d19e59a66b1ULL, 0x2f71bc93e26514cdULL,
- 0x749ccdb925871b51ULL, 0x53f55102f7a257a4ULL, 0xd3686bb8d0d6be03ULL,
- 0xd26b6fbdd6deb504ULL, 0x4dd72964b35285feULL, 0x50f05d0dfdba4aadULL,
- 0xace98a26cf09e063ULL, 0x8d8a0e83091c9684ULL, 0xbfdcc679a5914d1aULL,
- 0x7090ddad3da7374dULL, 0x52f65507f1aa5ca3ULL, 0x9ab352c87ba417e1ULL,
- 0x4cd42d61b55a8ef9ULL, 0xea238f65460320acULL, 0xd56273a6c4e68411ULL,
- 0x97a466f155cc68c2ULL, 0xd16e63b2dcc6a80dULL, 0x3355ccffaa85d099ULL,
- 0x51f35908fbb241aaULL, 0x5bed712ac7e20f9cULL, 0xa6f7a204f359ae55ULL,
- 0xde7f5f81febec120ULL, 0x48d83d75ad7aa2e5ULL, 0xa8e59a32d729cc7fULL,
- 0x99b65ec771bc0ae8ULL, 0xdb704b90e096e63bULL, 0x3256c8faac8ddb9eULL,
- 0xb7c4e65195d11522ULL, 0xfc19d72b32b3aaceULL, 0xe338ab48704b7393ULL,
- 0x9ebf42dc63843bfdULL, 0x91ae7eef41fc52d0ULL, 0x9bb056cd7dac1ce6ULL,
- 0xe23baf4d76437894ULL, 0xbbd0d66dbdb16106ULL, 0x41c319589b32f1daULL,
- 0x6eb2a5cb7957e517ULL, 0xa5f2ae0bf941b35cULL, 0xcb400bc08016564bULL,
- 0x6bbdb1da677fc20cULL, 0x95a26efb59dc7eccULL, 0xa1febe1fe1619f40ULL,
- 0xf308eb1810cbc3e3ULL, 0xb1cefe4f81e12f30ULL, 0x0206080a0c10160eULL,
- 0xcc4917db922e675eULL, 0xc45137f3a26e3f66ULL, 0x1d2774694ee8cf53ULL,
- 0x143c504478a09c6cULL, 0xc3582be8b0560e73ULL, 0x63a591f2573f9a34ULL,
- 0xda734f95e69eed3cULL, 0x5de76934d3d2358eULL, 0x5fe1613edfc22380ULL,
- 0xdc79578bf2aed72eULL, 0x7d87e99413cf486eULL, 0xcd4a13de94266c59ULL,
- 0x7f81e19e1fdf5e60ULL, 0x5aee752fc1ea049bULL, 0x6cb4adc17547f319ULL,
- 0x5ce46d31d5da3e89ULL, 0xf704fb0c08ebefffULL, 0x266a98bed42d47f2ULL,
- 0xff1cdb2438abb7c7ULL, 0xed2a937e543b11b9ULL, 0xe825876f4a1336a2ULL,
- 0x9dba4ed3699c26f4ULL, 0x6fb1a1ce7f5fee10ULL, 0x8e8f028c03048b8dULL,
- 0x192b647d56c8e34fULL, 0xa0fdba1ae7699447ULL, 0xf00de7171ad3deeaULL,
- 0x89861e97113cba98ULL, 0x0f113c332278692dULL, 0x07091c1b12383115ULL,
- 0xafec8629c511fd6aULL, 0xfb10cb30208b9bdbULL, 0x0818202830405838ULL,
- 0x153f54417ea8976bULL, 0x0d1734392e687f23ULL, 0x040c101418202c1cULL,
- 0x0103040506080b07ULL, 0x64ac8de94507ab21ULL, 0xdf7c5b84f8b6ca27ULL,
- 0x769ac5b329970d5fULL, 0x798bf9800bef6472ULL, 0xdd7a538ef4a6dc29ULL,
- 0x3d47f4c98ef5b2b3ULL, 0x163a584e74b08a62ULL, 0x3f41fcc382e5a4bdULL,
- 0x3759dcebb2a5fc85ULL, 0x6db7a9c4734ff81eULL, 0x3848e0d890dd95a8ULL,
- 0xb9d6de67b1a17708ULL, 0x7395d1a237bf2a44ULL, 0xe926836a4c1b3da5ULL,
- 0x355fd4e1beb5ea8bULL, 0x55ff491ce3926db6ULL, 0x7193d9a83baf3c4aULL,
- 0x7b8df18a07ff727cULL, 0x8c890a860f149d83ULL, 0x7296d5a731b72143ULL,
- 0x88851a921734b19fULL, 0xf607ff090ee3e4f8ULL, 0x2a7ea882fc4d33d6ULL,
- 0x3e42f8c684edafbaULL, 0x5ee2653bd9ca2887ULL, 0x27699cbbd2254cf5ULL,
- 0x46ca0543890ac0cfULL, 0x0c14303c28607424ULL, 0x65af89ec430fa026ULL,
- 0x68b8bdd56d67df05ULL, 0x61a399f85b2f8c3aULL, 0x03050c0f0a181d09ULL,
- 0xc15e23e2bc46187dULL, 0x57f94116ef827bb8ULL, 0xd6677fa9cefe9918ULL,
- 0xd976439aec86f035ULL, 0x58e87d25cdfa1295ULL, 0xd875479fea8efb32ULL,
- 0x66aa85e34917bd2fULL, 0xd7647bacc8f6921fULL, 0x3a4ee8d29ccd83a6ULL,
- 0xc84507cf8a0e4b42ULL, 0x3c44f0cc88fdb9b4ULL, 0xfa13cf35268390dcULL,
- 0x96a762f453c463c5ULL, 0xa7f4a601f551a552ULL, 0x98b55ac277b401efULL,
- 0xec29977b52331abeULL, 0xb8d5da62b7a97c0fULL, 0xc7543bfca876226fULL,
- 0xaeef822cc319f66dULL, 0x69bbb9d06b6fd402ULL, 0x4bdd317aa762bfecULL,
- 0xabe0963ddd31d176ULL, 0xa9e69e37d121c778ULL, 0x67a981e64f1fb628ULL,
- 0x0a1e28223c504e36ULL, 0x47c901468f02cbc8ULL, 0xf20bef1d16c3c8e4ULL,
- 0xb5c2ee5b99c1032cULL, 0x226688aacc0d6beeULL, 0xe532b356647b4981ULL,
- 0xee2f9f715e230cb0ULL, 0xbedfc27ca399461dULL, 0x2b7dac87fa4538d1ULL,
- 0x819e3ebf217ce2a0ULL, 0x1236485a6c90a67eULL, 0x839836b52d6cf4aeULL,
- 0x1b2d6c775ad8f541ULL, 0x0e1238362470622aULL, 0x23658cafca0560e9ULL,
- 0xf502f30604fbf9f1ULL, 0x45cf094c8312ddc6ULL, 0x216384a5c61576e7ULL,
- 0xce4f1fd19e3e7150ULL, 0x49db3970ab72a9e2ULL, 0x2c74b09ce87d09c4ULL,
- 0xf916c33a2c9b8dd5ULL, 0xe637bf596e635488ULL, 0xb6c7e25493d91e25ULL,
- 0x2878a088f05d25d8ULL, 0x17395c4b72b88165ULL, 0x829b32b02b64ffa9ULL,
- 0x1a2e68725cd0fe46ULL, 0x8b80169d1d2cac96ULL, 0xfe1fdf213ea3bcc0ULL,
- 0x8a8312981b24a791ULL, 0x091b242d3648533fULL, 0xc94603ca8c064045ULL,
- 0x879426a1354cd8b2ULL, 0x4ed2256bb94a98f7ULL, 0xe13ea3427c5b659dULL,
- 0x2e72b896e46d1fcaULL, 0xe431b75362734286ULL, 0xe03da7477a536e9aULL,
- 0xeb208b60400b2babULL, 0x90ad7aea47f459d7ULL, 0xa4f1aa0eff49b85bULL,
- 0x1e22786644f0d25aULL, 0x85922eab395ccebcULL, 0x60a09dfd5d27873dULL,
- 0x0000000000000000ULL, 0x256f94b1de355afbULL, 0xf401f70302f3f2f6ULL,
- 0xf10ee3121cdbd5edULL, 0x94a16afe5fd475cbULL, 0x0b1d2c273a584531ULL,
- 0xe734bb5c686b5f8fULL, 0x759fc9bc238f1056ULL, 0xef2c9b74582b07b7ULL,
- 0x345cd0e4b8bde18cULL, 0x3153c4f5a695c697ULL, 0xd46177a3c2ee8f16ULL,
- 0xd06d67b7dacea30aULL, 0x869722a43344d3b5ULL, 0x7e82e59b19d75567ULL,
- 0xadea8e23c901eb64ULL, 0xfd1ad32e34bba1c9ULL, 0x297ba48df6552edfULL,
- 0x3050c0f0a09dcd90ULL, 0x3b4decd79ac588a1ULL, 0x9fbc46d9658c30faULL,
- 0xf815c73f2a9386d2ULL, 0xc6573ff9ae7e2968ULL, 0x13354c5f6a98ad79ULL,
- 0x060a181e14303a12ULL, 0x050f14111e28271bULL, 0xc55233f6a4663461ULL,
- 0x113344556688bb77ULL, 0x7799c1b62f9f0658ULL, 0x7c84ed9115c74369ULL,
- 0x7a8ef58f01f7797bULL, 0x7888fd850de76f75ULL, 0x365ad8eeb4adf782ULL,
- 0x1c24706c48e0c454ULL, 0x394be4dd96d59eafULL, 0x59eb7920cbf21992ULL,
- 0x1828607850c0e848ULL, 0x56fa4513e98a70bfULL, 0xb3c8f6458df1393eULL,
- 0xb0cdfa4a87e92437ULL, 0x246c90b4d83d51fcULL, 0x206080a0c01d7de0ULL,
- 0xb2cbf2408bf93239ULL, 0x92ab72e04be44fd9ULL, 0xa3f8b615ed71894eULL,
- 0xc05d27e7ba4e137aULL, 0x44cc0d49851ad6c1ULL, 0x62a695f751379133ULL,
- 0x103040506080b070ULL, 0xb4c1ea5e9fc9082bULL, 0x84912aae3f54c5bbULL,
- 0x43c511529722e7d4ULL, 0x93a876e54dec44deULL, 0xc25b2fedb65e0574ULL,
- 0x4ade357fa16ab4ebULL, 0xbddace73a9815b14ULL, 0x8f8c0689050c808aULL,
- 0x2d77b499ee7502c3ULL, 0xbcd9ca76af895013ULL, 0x9cb94ad66f942df3ULL,
- 0x6abeb5df6177c90bULL, 0x40c01d5d9d3afaddULL, 0xcf4c1bd498367a57ULL,
- 0xa2fbb210eb798249ULL, 0x809d3aba2774e9a7ULL, 0x4fd1216ebf4293f0ULL,
- 0x1f217c6342f8d95dULL, 0xca430fc5861e5d4cULL, 0xaae39238db39da71ULL,
- 0x42c61557912aecd3ULL
-};
-
-static const u64 T1[256] = {
- 0xd3ba68d2b9bb016aULL, 0xfc54194d9ae5b166ULL, 0x712f93bc65e2cd14ULL,
- 0x9c74b9cd8725511bULL, 0xf5530251a2f7a457ULL, 0x68d3b86bd6d003beULL,
- 0x6bd2bd6fded604b5ULL, 0xd74d642952b3fe85ULL, 0xf0500d5dbafdad4aULL,
- 0xe9ac268a09cf63e0ULL, 0x8a8d830e1c098496ULL, 0xdcbf79c691a51a4dULL,
- 0x9070addda73d4d37ULL, 0xf6520755aaf1a35cULL, 0xb39ac852a47be117ULL,
- 0xd44c612d5ab5f98eULL, 0x23ea658f0346ac20ULL, 0x62d5a673e6c41184ULL,
- 0xa497f166cc55c268ULL, 0x6ed1b263c6dc0da8ULL, 0x5533ffcc85aa99d0ULL,
- 0xf3510859b2fbaa41ULL, 0xed5b2a71e2c79c0fULL, 0xf7a604a259f355aeULL,
- 0x7fde815fbefe20c1ULL, 0xd848753d7aade5a2ULL, 0xe5a8329a29d77fccULL,
- 0xb699c75ebc71e80aULL, 0x70db904b96e03be6ULL, 0x5632fac88dac9edbULL,
- 0xc4b751e6d1952215ULL, 0x19fc2bd7b332ceaaULL, 0x38e348ab4b709373ULL,
- 0xbf9edc428463fd3bULL, 0xae91ef7efc41d052ULL, 0xb09bcd56ac7de61cULL,
- 0x3be24daf43769478ULL, 0xd0bb6dd6b1bd0661ULL, 0xc3415819329bdaf1ULL,
- 0xb26ecba5577917e5ULL, 0xf2a50bae41f95cb3ULL, 0x40cbc00b16804b56ULL,
- 0xbd6bdab17f670cc2ULL, 0xa295fb6edc59cc7eULL, 0xfea11fbe61e1409fULL,
- 0x08f318ebcb10e3c3ULL, 0xceb14ffee181302fULL, 0x06020a08100c0e16ULL,
- 0x49ccdb172e925e67ULL, 0x51c4f3376ea2663fULL, 0x271d6974e84e53cfULL,
- 0x3c144450a0786c9cULL, 0x58c3e82b56b0730eULL, 0xa563f2913f57349aULL,
- 0x73da954f9ee63cedULL, 0xe75d3469d2d38e35ULL, 0xe15f3e61c2df8023ULL,
- 0x79dc8b57aef22ed7ULL, 0x877d94e9cf136e48ULL, 0x4acdde132694596cULL,
- 0x817f9ee1df1f605eULL, 0xee5a2f75eac19b04ULL, 0xb46cc1ad477519f3ULL,
- 0xe45c316ddad5893eULL, 0x04f70cfbeb08ffefULL, 0x6a26be982dd4f247ULL,
- 0x1cff24dbab38c7b7ULL, 0x2aed7e933b54b911ULL, 0x25e86f87134aa236ULL,
- 0xba9dd34e9c69f426ULL, 0xb16fcea15f7f10eeULL, 0x8f8e8c0204038d8bULL,
- 0x2b197d64c8564fe3ULL, 0xfda01aba69e74794ULL, 0x0df017e7d31aeadeULL,
- 0x8689971e3c1198baULL, 0x110f333c78222d69ULL, 0x09071b1c38121531ULL,
- 0xecaf298611c56afdULL, 0x10fb30cb8b20db9bULL, 0x1808282040303858ULL,
- 0x3f154154a87e6b97ULL, 0x170d3934682e237fULL, 0x0c04141020181c2cULL,
- 0x030105040806070bULL, 0xac64e98d074521abULL, 0x7cdf845bb6f827caULL,
- 0x9a76b3c597295f0dULL, 0x8b7980f9ef0b7264ULL, 0x7add8e53a6f429dcULL,
- 0x473dc9f4f58eb3b2ULL, 0x3a164e58b074628aULL, 0x413fc3fce582bda4ULL,
- 0x5937ebdca5b285fcULL, 0xb76dc4a94f731ef8ULL, 0x4838d8e0dd90a895ULL,
- 0xd6b967dea1b10877ULL, 0x9573a2d1bf37442aULL, 0x26e96a831b4ca53dULL,
- 0x5f35e1d4b5be8beaULL, 0xff551c4992e3b66dULL, 0x9371a8d9af3b4a3cULL,
- 0x8d7b8af1ff077c72ULL, 0x898c860a140f839dULL, 0x9672a7d5b7314321ULL,
- 0x8588921a34179fb1ULL, 0x07f609ffe30ef8e4ULL, 0x7e2a82a84dfcd633ULL,
- 0x423ec6f8ed84baafULL, 0xe25e3b65cad98728ULL, 0x6927bb9c25d2f54cULL,
- 0xca4643050a89cfc0ULL, 0x140c3c3060282474ULL, 0xaf65ec890f4326a0ULL,
- 0xb868d5bd676d05dfULL, 0xa361f8992f5b3a8cULL, 0x05030f0c180a091dULL,
- 0x5ec1e22346bc7d18ULL, 0xf957164182efb87bULL, 0x67d6a97ffece1899ULL,
- 0x76d99a4386ec35f0ULL, 0xe858257dfacd9512ULL, 0x75d89f478eea32fbULL,
- 0xaa66e38517492fbdULL, 0x64d7ac7bf6c81f92ULL, 0x4e3ad2e8cd9ca683ULL,
- 0x45c8cf070e8a424bULL, 0x443cccf0fd88b4b9ULL, 0x13fa35cf8326dc90ULL,
- 0xa796f462c453c563ULL, 0xf4a701a651f552a5ULL, 0xb598c25ab477ef01ULL,
- 0x29ec7b973352be1aULL, 0xd5b862daa9b70f7cULL, 0x54c7fc3b76a86f22ULL,
- 0xefae2c8219c36df6ULL, 0xbb69d0b96f6b02d4ULL, 0xdd4b7a3162a7ecbfULL,
- 0xe0ab3d9631dd76d1ULL, 0xe6a9379e21d178c7ULL, 0xa967e6811f4f28b6ULL,
- 0x1e0a2228503c364eULL, 0xc9474601028fc8cbULL, 0x0bf21defc316e4c8ULL,
- 0xc2b55beec1992c03ULL, 0x6622aa880dccee6bULL, 0x32e556b37b648149ULL,
- 0x2fee719f235eb00cULL, 0xdfbe7cc299a31d46ULL, 0x7d2b87ac45fad138ULL,
- 0x9e81bf3e7c21a0e2ULL, 0x36125a48906c7ea6ULL, 0x9883b5366c2daef4ULL,
- 0x2d1b776cd85a41f5ULL, 0x120e363870242a62ULL, 0x6523af8c05cae960ULL,
- 0x02f506f3fb04f1f9ULL, 0xcf454c091283c6ddULL, 0x6321a58415c6e776ULL,
- 0x4fced11f3e9e5071ULL, 0xdb49703972abe2a9ULL, 0x742c9cb07de8c409ULL,
- 0x16f93ac39b2cd58dULL, 0x37e659bf636e8854ULL, 0xc7b654e2d993251eULL,
- 0x782888a05df0d825ULL, 0x39174b5cb8726581ULL, 0x9b82b032642ba9ffULL,
- 0x2e1a7268d05c46feULL, 0x808b9d162c1d96acULL, 0x1ffe21dfa33ec0bcULL,
- 0x838a9812241b91a7ULL, 0x1b092d2448363f53ULL, 0x46c9ca03068c4540ULL,
- 0x9487a1264c35b2d8ULL, 0xd24e6b254ab9f798ULL, 0x3ee142a35b7c9d65ULL,
- 0x722e96b86de4ca1fULL, 0x31e453b773628642ULL, 0x3de047a7537a9a6eULL,
- 0x20eb608b0b40ab2bULL, 0xad90ea7af447d759ULL, 0xf1a40eaa49ff5bb8ULL,
- 0x221e6678f0445ad2ULL, 0x9285ab2e5c39bcceULL, 0xa060fd9d275d3d87ULL,
- 0x0000000000000000ULL, 0x6f25b19435defb5aULL, 0x01f403f7f302f6f2ULL,
- 0x0ef112e3db1cedd5ULL, 0xa194fe6ad45fcb75ULL, 0x1d0b272c583a3145ULL,
- 0x34e75cbb6b688f5fULL, 0x9f75bcc98f235610ULL, 0x2cef749b2b58b707ULL,
- 0x5c34e4d0bdb88ce1ULL, 0x5331f5c495a697c6ULL, 0x61d4a377eec2168fULL,
- 0x6dd0b767ceda0aa3ULL, 0x9786a4224433b5d3ULL, 0x827e9be5d7196755ULL,
- 0xeaad238e01c964ebULL, 0x1afd2ed3bb34c9a1ULL, 0x7b298da455f6df2eULL,
- 0x5030f0c09da090cdULL, 0x4d3bd7ecc59aa188ULL, 0xbc9fd9468c65fa30ULL,
- 0x15f83fc7932ad286ULL, 0x57c6f93f7eae6829ULL, 0x35135f4c986a79adULL,
- 0x0a061e183014123aULL, 0x0f051114281e1b27ULL, 0x52c5f63366a46134ULL,
- 0x33115544886677bbULL, 0x9977b6c19f2f5806ULL, 0x847c91edc7156943ULL,
- 0x8e7a8ff5f7017b79ULL, 0x887885fde70d756fULL, 0x5a36eed8adb482f7ULL,
- 0x241c6c70e04854c4ULL, 0x4b39dde4d596af9eULL, 0xeb592079f2cb9219ULL,
- 0x28187860c05048e8ULL, 0xfa5613458ae9bf70ULL, 0xc8b345f6f18d3e39ULL,
- 0xcdb04afae9873724ULL, 0x6c24b4903dd8fc51ULL, 0x6020a0801dc0e07dULL,
- 0xcbb240f2f98b3932ULL, 0xab92e072e44bd94fULL, 0xf8a315b671ed4e89ULL,
- 0x5dc0e7274eba7a13ULL, 0xcc44490d1a85c1d6ULL, 0xa662f79537513391ULL,
- 0x30105040806070b0ULL, 0xc1b45eeac99f2b08ULL, 0x9184ae2a543fbbc5ULL,
- 0xc54352112297d4e7ULL, 0xa893e576ec4dde44ULL, 0x5bc2ed2f5eb67405ULL,
- 0xde4a7f356aa1ebb4ULL, 0xdabd73ce81a9145bULL, 0x8c8f89060c058a80ULL,
- 0x772d99b475eec302ULL, 0xd9bc76ca89af1350ULL, 0xb99cd64a946ff32dULL,
- 0xbe6adfb577610bc9ULL, 0xc0405d1d3a9dddfaULL, 0x4ccfd41b3698577aULL,
- 0xfba210b279eb4982ULL, 0x9d80ba3a7427a7e9ULL, 0xd14f6e2142bff093ULL,
- 0x211f637cf8425dd9ULL, 0x43cac50f1e864c5dULL, 0xe3aa389239db71daULL,
- 0xc64257152a91d3ecULL
-};
-
-static const u64 T2[256] = {
- 0xd268bad36a01bbb9ULL, 0x4d1954fc66b1e59aULL, 0xbc932f7114cde265ULL,
- 0xcdb9749c1b512587ULL, 0x510253f557a4f7a2ULL, 0x6bb8d368be03d0d6ULL,
- 0x6fbdd26bb504d6deULL, 0x29644dd785feb352ULL, 0x5d0d50f04aadfdbaULL,
- 0x8a26ace9e063cf09ULL, 0x0e838d8a9684091cULL, 0xc679bfdc4d1aa591ULL,
- 0xddad7090374d3da7ULL, 0x550752f65ca3f1aaULL, 0x52c89ab317e17ba4ULL,
- 0x2d614cd48ef9b55aULL, 0x8f65ea2320ac4603ULL, 0x73a6d5628411c4e6ULL,
- 0x66f197a468c255ccULL, 0x63b2d16ea80ddcc6ULL, 0xccff3355d099aa85ULL,
- 0x590851f341aafbb2ULL, 0x712a5bed0f9cc7e2ULL, 0xa204a6f7ae55f359ULL,
- 0x5f81de7fc120febeULL, 0x3d7548d8a2e5ad7aULL, 0x9a32a8e5cc7fd729ULL,
- 0x5ec799b60ae871bcULL, 0x4b90db70e63be096ULL, 0xc8fa3256db9eac8dULL,
- 0xe651b7c4152295d1ULL, 0xd72bfc19aace32b3ULL, 0xab48e3387393704bULL,
- 0x42dc9ebf3bfd6384ULL, 0x7eef91ae52d041fcULL, 0x56cd9bb01ce67dacULL,
- 0xaf4de23b78947643ULL, 0xd66dbbd06106bdb1ULL, 0x195841c3f1da9b32ULL,
- 0xa5cb6eb2e5177957ULL, 0xae0ba5f2b35cf941ULL, 0x0bc0cb40564b8016ULL,
- 0xb1da6bbdc20c677fULL, 0x6efb95a27ecc59dcULL, 0xbe1fa1fe9f40e161ULL,
- 0xeb18f308c3e310cbULL, 0xfe4fb1ce2f3081e1ULL, 0x080a0206160e0c10ULL,
- 0x17dbcc49675e922eULL, 0x37f3c4513f66a26eULL, 0x74691d27cf534ee8ULL,
- 0x5044143c9c6c78a0ULL, 0x2be8c3580e73b056ULL, 0x91f263a59a34573fULL,
- 0x4f95da73ed3ce69eULL, 0x69345de7358ed3d2ULL, 0x613e5fe12380dfc2ULL,
- 0x578bdc79d72ef2aeULL, 0xe9947d87486e13cfULL, 0x13decd4a6c599426ULL,
- 0xe19e7f815e601fdfULL, 0x752f5aee049bc1eaULL, 0xadc16cb4f3197547ULL,
- 0x6d315ce43e89d5daULL, 0xfb0cf704efff08ebULL, 0x98be266a47f2d42dULL,
- 0xdb24ff1cb7c738abULL, 0x937eed2a11b9543bULL, 0x876fe82536a24a13ULL,
- 0x4ed39dba26f4699cULL, 0xa1ce6fb1ee107f5fULL, 0x028c8e8f8b8d0304ULL,
- 0x647d192be34f56c8ULL, 0xba1aa0fd9447e769ULL, 0xe717f00ddeea1ad3ULL,
- 0x1e978986ba98113cULL, 0x3c330f11692d2278ULL, 0x1c1b070931151238ULL,
- 0x8629afecfd6ac511ULL, 0xcb30fb109bdb208bULL, 0x2028081858383040ULL,
- 0x5441153f976b7ea8ULL, 0x34390d177f232e68ULL, 0x1014040c2c1c1820ULL,
- 0x040501030b070608ULL, 0x8de964acab214507ULL, 0x5b84df7cca27f8b6ULL,
- 0xc5b3769a0d5f2997ULL, 0xf980798b64720befULL, 0x538edd7adc29f4a6ULL,
- 0xf4c93d47b2b38ef5ULL, 0x584e163a8a6274b0ULL, 0xfcc33f41a4bd82e5ULL,
- 0xdceb3759fc85b2a5ULL, 0xa9c46db7f81e734fULL, 0xe0d8384895a890ddULL,
- 0xde67b9d67708b1a1ULL, 0xd1a273952a4437bfULL, 0x836ae9263da54c1bULL,
- 0xd4e1355fea8bbeb5ULL, 0x491c55ff6db6e392ULL, 0xd9a871933c4a3bafULL,
- 0xf18a7b8d727c07ffULL, 0x0a868c899d830f14ULL, 0xd5a77296214331b7ULL,
- 0x1a928885b19f1734ULL, 0xff09f607e4f80ee3ULL, 0xa8822a7e33d6fc4dULL,
- 0xf8c63e42afba84edULL, 0x653b5ee22887d9caULL, 0x9cbb27694cf5d225ULL,
- 0x054346cac0cf890aULL, 0x303c0c1474242860ULL, 0x89ec65afa026430fULL,
- 0xbdd568b8df056d67ULL, 0x99f861a38c3a5b2fULL, 0x0c0f03051d090a18ULL,
- 0x23e2c15e187dbc46ULL, 0x411657f97bb8ef82ULL, 0x7fa9d6679918cefeULL,
- 0x439ad976f035ec86ULL, 0x7d2558e81295cdfaULL, 0x479fd875fb32ea8eULL,
- 0x85e366aabd2f4917ULL, 0x7bacd764921fc8f6ULL, 0xe8d23a4e83a69ccdULL,
- 0x07cfc8454b428a0eULL, 0xf0cc3c44b9b488fdULL, 0xcf35fa1390dc2683ULL,
- 0x62f496a763c553c4ULL, 0xa601a7f4a552f551ULL, 0x5ac298b501ef77b4ULL,
- 0x977bec291abe5233ULL, 0xda62b8d57c0fb7a9ULL, 0x3bfcc754226fa876ULL,
- 0x822caeeff66dc319ULL, 0xb9d069bbd4026b6fULL, 0x317a4bddbfeca762ULL,
- 0x963dabe0d176dd31ULL, 0x9e37a9e6c778d121ULL, 0x81e667a9b6284f1fULL,
- 0x28220a1e4e363c50ULL, 0x014647c9cbc88f02ULL, 0xef1df20bc8e416c3ULL,
- 0xee5bb5c2032c99c1ULL, 0x88aa22666beecc0dULL, 0xb356e5324981647bULL,
- 0x9f71ee2f0cb05e23ULL, 0xc27cbedf461da399ULL, 0xac872b7d38d1fa45ULL,
- 0x3ebf819ee2a0217cULL, 0x485a1236a67e6c90ULL, 0x36b58398f4ae2d6cULL,
- 0x6c771b2df5415ad8ULL, 0x38360e12622a2470ULL, 0x8caf236560e9ca05ULL,
- 0xf306f502f9f104fbULL, 0x094c45cfddc68312ULL, 0x84a5216376e7c615ULL,
- 0x1fd1ce4f71509e3eULL, 0x397049dba9e2ab72ULL, 0xb09c2c7409c4e87dULL,
- 0xc33af9168dd52c9bULL, 0xbf59e63754886e63ULL, 0xe254b6c71e2593d9ULL,
- 0xa088287825d8f05dULL, 0x5c4b1739816572b8ULL, 0x32b0829bffa92b64ULL,
- 0x68721a2efe465cd0ULL, 0x169d8b80ac961d2cULL, 0xdf21fe1fbcc03ea3ULL,
- 0x12988a83a7911b24ULL, 0x242d091b533f3648ULL, 0x03cac94640458c06ULL,
- 0x26a18794d8b2354cULL, 0x256b4ed298f7b94aULL, 0xa342e13e659d7c5bULL,
- 0xb8962e721fcae46dULL, 0xb753e43142866273ULL, 0xa747e03d6e9a7a53ULL,
- 0x8b60eb202bab400bULL, 0x7aea90ad59d747f4ULL, 0xaa0ea4f1b85bff49ULL,
- 0x78661e22d25a44f0ULL, 0x2eab8592cebc395cULL, 0x9dfd60a0873d5d27ULL,
- 0x0000000000000000ULL, 0x94b1256f5afbde35ULL, 0xf703f401f2f602f3ULL,
- 0xe312f10ed5ed1cdbULL, 0x6afe94a175cb5fd4ULL, 0x2c270b1d45313a58ULL,
- 0xbb5ce7345f8f686bULL, 0xc9bc759f1056238fULL, 0x9b74ef2c07b7582bULL,
- 0xd0e4345ce18cb8bdULL, 0xc4f53153c697a695ULL, 0x77a3d4618f16c2eeULL,
- 0x67b7d06da30adaceULL, 0x22a48697d3b53344ULL, 0xe59b7e82556719d7ULL,
- 0x8e23adeaeb64c901ULL, 0xd32efd1aa1c934bbULL, 0xa48d297b2edff655ULL,
- 0xc0f03050cd90a09dULL, 0xecd73b4d88a19ac5ULL, 0x46d99fbc30fa658cULL,
- 0xc73ff81586d22a93ULL, 0x3ff9c6572968ae7eULL, 0x4c5f1335ad796a98ULL,
- 0x181e060a3a121430ULL, 0x1411050f271b1e28ULL, 0x33f6c5523461a466ULL,
- 0x44551133bb776688ULL, 0xc1b6779906582f9fULL, 0xed917c84436915c7ULL,
- 0xf58f7a8e797b01f7ULL, 0xfd8578886f750de7ULL, 0xd8ee365af782b4adULL,
- 0x706c1c24c45448e0ULL, 0xe4dd394b9eaf96d5ULL, 0x792059eb1992cbf2ULL,
- 0x60781828e84850c0ULL, 0x451356fa70bfe98aULL, 0xf645b3c8393e8df1ULL,
- 0xfa4ab0cd243787e9ULL, 0x90b4246c51fcd83dULL, 0x80a020607de0c01dULL,
- 0xf240b2cb32398bf9ULL, 0x72e092ab4fd94be4ULL, 0xb615a3f8894eed71ULL,
- 0x27e7c05d137aba4eULL, 0x0d4944ccd6c1851aULL, 0x95f762a691335137ULL,
- 0x40501030b0706080ULL, 0xea5eb4c1082b9fc9ULL, 0x2aae8491c5bb3f54ULL,
- 0x115243c5e7d49722ULL, 0x76e593a844de4decULL, 0x2fedc25b0574b65eULL,
- 0x357f4adeb4eba16aULL, 0xce73bdda5b14a981ULL, 0x06898f8c808a050cULL,
- 0xb4992d7702c3ee75ULL, 0xca76bcd95013af89ULL, 0x4ad69cb92df36f94ULL,
- 0xb5df6abec90b6177ULL, 0x1d5d40c0fadd9d3aULL, 0x1bd4cf4c7a579836ULL,
- 0xb210a2fb8249eb79ULL, 0x3aba809de9a72774ULL, 0x216e4fd193f0bf42ULL,
- 0x7c631f21d95d42f8ULL, 0x0fc5ca435d4c861eULL, 0x9238aae3da71db39ULL,
- 0x155742c6ecd3912aULL
-};
-
-static const u64 T3[256] = {
- 0x68d2d3ba016ab9bbULL, 0x194dfc54b1669ae5ULL, 0x93bc712fcd1465e2ULL,
- 0xb9cd9c74511b8725ULL, 0x0251f553a457a2f7ULL, 0xb86b68d303bed6d0ULL,
- 0xbd6f6bd204b5ded6ULL, 0x6429d74dfe8552b3ULL, 0x0d5df050ad4abafdULL,
- 0x268ae9ac63e009cfULL, 0x830e8a8d84961c09ULL, 0x79c6dcbf1a4d91a5ULL,
- 0xaddd90704d37a73dULL, 0x0755f652a35caaf1ULL, 0xc852b39ae117a47bULL,
- 0x612dd44cf98e5ab5ULL, 0x658f23eaac200346ULL, 0xa67362d51184e6c4ULL,
- 0xf166a497c268cc55ULL, 0xb2636ed10da8c6dcULL, 0xffcc553399d085aaULL,
- 0x0859f351aa41b2fbULL, 0x2a71ed5b9c0fe2c7ULL, 0x04a2f7a655ae59f3ULL,
- 0x815f7fde20c1befeULL, 0x753dd848e5a27aadULL, 0x329ae5a87fcc29d7ULL,
- 0xc75eb699e80abc71ULL, 0x904b70db3be696e0ULL, 0xfac856329edb8dacULL,
- 0x51e6c4b72215d195ULL, 0x2bd719fcceaab332ULL, 0x48ab38e393734b70ULL,
- 0xdc42bf9efd3b8463ULL, 0xef7eae91d052fc41ULL, 0xcd56b09be61cac7dULL,
- 0x4daf3be294784376ULL, 0x6dd6d0bb0661b1bdULL, 0x5819c341daf1329bULL,
- 0xcba5b26e17e55779ULL, 0x0baef2a55cb341f9ULL, 0xc00b40cb4b561680ULL,
- 0xdab1bd6b0cc27f67ULL, 0xfb6ea295cc7edc59ULL, 0x1fbefea1409f61e1ULL,
- 0x18eb08f3e3c3cb10ULL, 0x4ffeceb1302fe181ULL, 0x0a0806020e16100cULL,
- 0xdb1749cc5e672e92ULL, 0xf33751c4663f6ea2ULL, 0x6974271d53cfe84eULL,
- 0x44503c146c9ca078ULL, 0xe82b58c3730e56b0ULL, 0xf291a563349a3f57ULL,
- 0x954f73da3ced9ee6ULL, 0x3469e75d8e35d2d3ULL, 0x3e61e15f8023c2dfULL,
- 0x8b5779dc2ed7aef2ULL, 0x94e9877d6e48cf13ULL, 0xde134acd596c2694ULL,
- 0x9ee1817f605edf1fULL, 0x2f75ee5a9b04eac1ULL, 0xc1adb46c19f34775ULL,
- 0x316de45c893edad5ULL, 0x0cfb04f7ffefeb08ULL, 0xbe986a26f2472dd4ULL,
- 0x24db1cffc7b7ab38ULL, 0x7e932aedb9113b54ULL, 0x6f8725e8a236134aULL,
- 0xd34eba9df4269c69ULL, 0xcea1b16f10ee5f7fULL, 0x8c028f8e8d8b0403ULL,
- 0x7d642b194fe3c856ULL, 0x1abafda0479469e7ULL, 0x17e70df0eaded31aULL,
- 0x971e868998ba3c11ULL, 0x333c110f2d697822ULL, 0x1b1c090715313812ULL,
- 0x2986ecaf6afd11c5ULL, 0x30cb10fbdb9b8b20ULL, 0x2820180838584030ULL,
- 0x41543f156b97a87eULL, 0x3934170d237f682eULL, 0x14100c041c2c2018ULL,
- 0x05040301070b0806ULL, 0xe98dac6421ab0745ULL, 0x845b7cdf27cab6f8ULL,
- 0xb3c59a765f0d9729ULL, 0x80f98b797264ef0bULL, 0x8e537add29dca6f4ULL,
- 0xc9f4473db3b2f58eULL, 0x4e583a16628ab074ULL, 0xc3fc413fbda4e582ULL,
- 0xebdc593785fca5b2ULL, 0xc4a9b76d1ef84f73ULL, 0xd8e04838a895dd90ULL,
- 0x67ded6b90877a1b1ULL, 0xa2d19573442abf37ULL, 0x6a8326e9a53d1b4cULL,
- 0xe1d45f358beab5beULL, 0x1c49ff55b66d92e3ULL, 0xa8d993714a3caf3bULL,
- 0x8af18d7b7c72ff07ULL, 0x860a898c839d140fULL, 0xa7d596724321b731ULL,
- 0x921a85889fb13417ULL, 0x09ff07f6f8e4e30eULL, 0x82a87e2ad6334dfcULL,
- 0xc6f8423ebaafed84ULL, 0x3b65e25e8728cad9ULL, 0xbb9c6927f54c25d2ULL,
- 0x4305ca46cfc00a89ULL, 0x3c30140c24746028ULL, 0xec89af6526a00f43ULL,
- 0xd5bdb86805df676dULL, 0xf899a3613a8c2f5bULL, 0x0f0c0503091d180aULL,
- 0xe2235ec17d1846bcULL, 0x1641f957b87b82efULL, 0xa97f67d61899feceULL,
- 0x9a4376d935f086ecULL, 0x257de8589512facdULL, 0x9f4775d832fb8eeaULL,
- 0xe385aa662fbd1749ULL, 0xac7b64d71f92f6c8ULL, 0xd2e84e3aa683cd9cULL,
- 0xcf0745c8424b0e8aULL, 0xccf0443cb4b9fd88ULL, 0x35cf13fadc908326ULL,
- 0xf462a796c563c453ULL, 0x01a6f4a752a551f5ULL, 0xc25ab598ef01b477ULL,
- 0x7b9729ecbe1a3352ULL, 0x62dad5b80f7ca9b7ULL, 0xfc3b54c76f2276a8ULL,
- 0x2c82efae6df619c3ULL, 0xd0b9bb6902d46f6bULL, 0x7a31dd4becbf62a7ULL,
- 0x3d96e0ab76d131ddULL, 0x379ee6a978c721d1ULL, 0xe681a96728b61f4fULL,
- 0x22281e0a364e503cULL, 0x4601c947c8cb028fULL, 0x1def0bf2e4c8c316ULL,
- 0x5beec2b52c03c199ULL, 0xaa886622ee6b0dccULL, 0x56b332e581497b64ULL,
- 0x719f2feeb00c235eULL, 0x7cc2dfbe1d4699a3ULL, 0x87ac7d2bd13845faULL,
- 0xbf3e9e81a0e27c21ULL, 0x5a4836127ea6906cULL, 0xb5369883aef46c2dULL,
- 0x776c2d1b41f5d85aULL, 0x3638120e2a627024ULL, 0xaf8c6523e96005caULL,
- 0x06f302f5f1f9fb04ULL, 0x4c09cf45c6dd1283ULL, 0xa5846321e77615c6ULL,
- 0xd11f4fce50713e9eULL, 0x7039db49e2a972abULL, 0x9cb0742cc4097de8ULL,
- 0x3ac316f9d58d9b2cULL, 0x59bf37e68854636eULL, 0x54e2c7b6251ed993ULL,
- 0x88a07828d8255df0ULL, 0x4b5c39176581b872ULL, 0xb0329b82a9ff642bULL,
- 0x72682e1a46fed05cULL, 0x9d16808b96ac2c1dULL, 0x21df1ffec0bca33eULL,
- 0x9812838a91a7241bULL, 0x2d241b093f534836ULL, 0xca0346c94540068cULL,
- 0xa1269487b2d84c35ULL, 0x6b25d24ef7984ab9ULL, 0x42a33ee19d655b7cULL,
- 0x96b8722eca1f6de4ULL, 0x53b731e486427362ULL, 0x47a73de09a6e537aULL,
- 0x608b20ebab2b0b40ULL, 0xea7aad90d759f447ULL, 0x0eaaf1a45bb849ffULL,
- 0x6678221e5ad2f044ULL, 0xab2e9285bcce5c39ULL, 0xfd9da0603d87275dULL,
- 0x0000000000000000ULL, 0xb1946f25fb5a35deULL, 0x03f701f4f6f2f302ULL,
- 0x12e30ef1edd5db1cULL, 0xfe6aa194cb75d45fULL, 0x272c1d0b3145583aULL,
- 0x5cbb34e78f5f6b68ULL, 0xbcc99f7556108f23ULL, 0x749b2cefb7072b58ULL,
- 0xe4d05c348ce1bdb8ULL, 0xf5c4533197c695a6ULL, 0xa37761d4168feec2ULL,
- 0xb7676dd00aa3cedaULL, 0xa4229786b5d34433ULL, 0x9be5827e6755d719ULL,
- 0x238eeaad64eb01c9ULL, 0x2ed31afdc9a1bb34ULL, 0x8da47b29df2e55f6ULL,
- 0xf0c0503090cd9da0ULL, 0xd7ec4d3ba188c59aULL, 0xd946bc9ffa308c65ULL,
- 0x3fc715f8d286932aULL, 0xf93f57c668297eaeULL, 0x5f4c351379ad986aULL,
- 0x1e180a06123a3014ULL, 0x11140f051b27281eULL, 0xf63352c5613466a4ULL,
- 0x5544331177bb8866ULL, 0xb6c1997758069f2fULL, 0x91ed847c6943c715ULL,
- 0x8ff58e7a7b79f701ULL, 0x85fd8878756fe70dULL, 0xeed85a3682f7adb4ULL,
- 0x6c70241c54c4e048ULL, 0xdde44b39af9ed596ULL, 0x2079eb599219f2cbULL,
- 0x7860281848e8c050ULL, 0x1345fa56bf708ae9ULL, 0x45f6c8b33e39f18dULL,
- 0x4afacdb03724e987ULL, 0xb4906c24fc513dd8ULL, 0xa0806020e07d1dc0ULL,
- 0x40f2cbb23932f98bULL, 0xe072ab92d94fe44bULL, 0x15b6f8a34e8971edULL,
- 0xe7275dc07a134ebaULL, 0x490dcc44c1d61a85ULL, 0xf795a66233913751ULL,
- 0x5040301070b08060ULL, 0x5eeac1b42b08c99fULL, 0xae2a9184bbc5543fULL,
- 0x5211c543d4e72297ULL, 0xe576a893de44ec4dULL, 0xed2f5bc274055eb6ULL,
- 0x7f35de4aebb46aa1ULL, 0x73cedabd145b81a9ULL, 0x89068c8f8a800c05ULL,
- 0x99b4772dc30275eeULL, 0x76cad9bc135089afULL, 0xd64ab99cf32d946fULL,
- 0xdfb5be6a0bc97761ULL, 0x5d1dc040ddfa3a9dULL, 0xd41b4ccf577a3698ULL,
- 0x10b2fba2498279ebULL, 0xba3a9d80a7e97427ULL, 0x6e21d14ff09342bfULL,
- 0x637c211f5dd9f842ULL, 0xc50f43ca4c5d1e86ULL, 0x3892e3aa71da39dbULL,
- 0x5715c642d3ec2a91ULL
-};
-
-static const u64 T4[256] = {
- 0xbbb96a01bad3d268ULL, 0xe59a66b154fc4d19ULL, 0xe26514cd2f71bc93ULL,
- 0x25871b51749ccdb9ULL, 0xf7a257a453f55102ULL, 0xd0d6be03d3686bb8ULL,
- 0xd6deb504d26b6fbdULL, 0xb35285fe4dd72964ULL, 0xfdba4aad50f05d0dULL,
- 0xcf09e063ace98a26ULL, 0x091c96848d8a0e83ULL, 0xa5914d1abfdcc679ULL,
- 0x3da7374d7090ddadULL, 0xf1aa5ca352f65507ULL, 0x7ba417e19ab352c8ULL,
- 0xb55a8ef94cd42d61ULL, 0x460320acea238f65ULL, 0xc4e68411d56273a6ULL,
- 0x55cc68c297a466f1ULL, 0xdcc6a80dd16e63b2ULL, 0xaa85d0993355ccffULL,
- 0xfbb241aa51f35908ULL, 0xc7e20f9c5bed712aULL, 0xf359ae55a6f7a204ULL,
- 0xfebec120de7f5f81ULL, 0xad7aa2e548d83d75ULL, 0xd729cc7fa8e59a32ULL,
- 0x71bc0ae899b65ec7ULL, 0xe096e63bdb704b90ULL, 0xac8ddb9e3256c8faULL,
- 0x95d11522b7c4e651ULL, 0x32b3aacefc19d72bULL, 0x704b7393e338ab48ULL,
- 0x63843bfd9ebf42dcULL, 0x41fc52d091ae7eefULL, 0x7dac1ce69bb056cdULL,
- 0x76437894e23baf4dULL, 0xbdb16106bbd0d66dULL, 0x9b32f1da41c31958ULL,
- 0x7957e5176eb2a5cbULL, 0xf941b35ca5f2ae0bULL, 0x8016564bcb400bc0ULL,
- 0x677fc20c6bbdb1daULL, 0x59dc7ecc95a26efbULL, 0xe1619f40a1febe1fULL,
- 0x10cbc3e3f308eb18ULL, 0x81e12f30b1cefe4fULL, 0x0c10160e0206080aULL,
- 0x922e675ecc4917dbULL, 0xa26e3f66c45137f3ULL, 0x4ee8cf531d277469ULL,
- 0x78a09c6c143c5044ULL, 0xb0560e73c3582be8ULL, 0x573f9a3463a591f2ULL,
- 0xe69eed3cda734f95ULL, 0xd3d2358e5de76934ULL, 0xdfc223805fe1613eULL,
- 0xf2aed72edc79578bULL, 0x13cf486e7d87e994ULL, 0x94266c59cd4a13deULL,
- 0x1fdf5e607f81e19eULL, 0xc1ea049b5aee752fULL, 0x7547f3196cb4adc1ULL,
- 0xd5da3e895ce46d31ULL, 0x08ebeffff704fb0cULL, 0xd42d47f2266a98beULL,
- 0x38abb7c7ff1cdb24ULL, 0x543b11b9ed2a937eULL, 0x4a1336a2e825876fULL,
- 0x699c26f49dba4ed3ULL, 0x7f5fee106fb1a1ceULL, 0x03048b8d8e8f028cULL,
- 0x56c8e34f192b647dULL, 0xe7699447a0fdba1aULL, 0x1ad3deeaf00de717ULL,
- 0x113cba9889861e97ULL, 0x2278692d0f113c33ULL, 0x1238311507091c1bULL,
- 0xc511fd6aafec8629ULL, 0x208b9bdbfb10cb30ULL, 0x3040583808182028ULL,
- 0x7ea8976b153f5441ULL, 0x2e687f230d173439ULL, 0x18202c1c040c1014ULL,
- 0x06080b0701030405ULL, 0x4507ab2164ac8de9ULL, 0xf8b6ca27df7c5b84ULL,
- 0x29970d5f769ac5b3ULL, 0x0bef6472798bf980ULL, 0xf4a6dc29dd7a538eULL,
- 0x8ef5b2b33d47f4c9ULL, 0x74b08a62163a584eULL, 0x82e5a4bd3f41fcc3ULL,
- 0xb2a5fc853759dcebULL, 0x734ff81e6db7a9c4ULL, 0x90dd95a83848e0d8ULL,
- 0xb1a17708b9d6de67ULL, 0x37bf2a447395d1a2ULL, 0x4c1b3da5e926836aULL,
- 0xbeb5ea8b355fd4e1ULL, 0xe3926db655ff491cULL, 0x3baf3c4a7193d9a8ULL,
- 0x07ff727c7b8df18aULL, 0x0f149d838c890a86ULL, 0x31b721437296d5a7ULL,
- 0x1734b19f88851a92ULL, 0x0ee3e4f8f607ff09ULL, 0xfc4d33d62a7ea882ULL,
- 0x84edafba3e42f8c6ULL, 0xd9ca28875ee2653bULL, 0xd2254cf527699cbbULL,
- 0x890ac0cf46ca0543ULL, 0x286074240c14303cULL, 0x430fa02665af89ecULL,
- 0x6d67df0568b8bdd5ULL, 0x5b2f8c3a61a399f8ULL, 0x0a181d0903050c0fULL,
- 0xbc46187dc15e23e2ULL, 0xef827bb857f94116ULL, 0xcefe9918d6677fa9ULL,
- 0xec86f035d976439aULL, 0xcdfa129558e87d25ULL, 0xea8efb32d875479fULL,
- 0x4917bd2f66aa85e3ULL, 0xc8f6921fd7647bacULL, 0x9ccd83a63a4ee8d2ULL,
- 0x8a0e4b42c84507cfULL, 0x88fdb9b43c44f0ccULL, 0x268390dcfa13cf35ULL,
- 0x53c463c596a762f4ULL, 0xf551a552a7f4a601ULL, 0x77b401ef98b55ac2ULL,
- 0x52331abeec29977bULL, 0xb7a97c0fb8d5da62ULL, 0xa876226fc7543bfcULL,
- 0xc319f66daeef822cULL, 0x6b6fd40269bbb9d0ULL, 0xa762bfec4bdd317aULL,
- 0xdd31d176abe0963dULL, 0xd121c778a9e69e37ULL, 0x4f1fb62867a981e6ULL,
- 0x3c504e360a1e2822ULL, 0x8f02cbc847c90146ULL, 0x16c3c8e4f20bef1dULL,
- 0x99c1032cb5c2ee5bULL, 0xcc0d6bee226688aaULL, 0x647b4981e532b356ULL,
- 0x5e230cb0ee2f9f71ULL, 0xa399461dbedfc27cULL, 0xfa4538d12b7dac87ULL,
- 0x217ce2a0819e3ebfULL, 0x6c90a67e1236485aULL, 0x2d6cf4ae839836b5ULL,
- 0x5ad8f5411b2d6c77ULL, 0x2470622a0e123836ULL, 0xca0560e923658cafULL,
- 0x04fbf9f1f502f306ULL, 0x8312ddc645cf094cULL, 0xc61576e7216384a5ULL,
- 0x9e3e7150ce4f1fd1ULL, 0xab72a9e249db3970ULL, 0xe87d09c42c74b09cULL,
- 0x2c9b8dd5f916c33aULL, 0x6e635488e637bf59ULL, 0x93d91e25b6c7e254ULL,
- 0xf05d25d82878a088ULL, 0x72b8816517395c4bULL, 0x2b64ffa9829b32b0ULL,
- 0x5cd0fe461a2e6872ULL, 0x1d2cac968b80169dULL, 0x3ea3bcc0fe1fdf21ULL,
- 0x1b24a7918a831298ULL, 0x3648533f091b242dULL, 0x8c064045c94603caULL,
- 0x354cd8b2879426a1ULL, 0xb94a98f74ed2256bULL, 0x7c5b659de13ea342ULL,
- 0xe46d1fca2e72b896ULL, 0x62734286e431b753ULL, 0x7a536e9ae03da747ULL,
- 0x400b2babeb208b60ULL, 0x47f459d790ad7aeaULL, 0xff49b85ba4f1aa0eULL,
- 0x44f0d25a1e227866ULL, 0x395ccebc85922eabULL, 0x5d27873d60a09dfdULL,
- 0x0000000000000000ULL, 0xde355afb256f94b1ULL, 0x02f3f2f6f401f703ULL,
- 0x1cdbd5edf10ee312ULL, 0x5fd475cb94a16afeULL, 0x3a5845310b1d2c27ULL,
- 0x686b5f8fe734bb5cULL, 0x238f1056759fc9bcULL, 0x582b07b7ef2c9b74ULL,
- 0xb8bde18c345cd0e4ULL, 0xa695c6973153c4f5ULL, 0xc2ee8f16d46177a3ULL,
- 0xdacea30ad06d67b7ULL, 0x3344d3b5869722a4ULL, 0x19d755677e82e59bULL,
- 0xc901eb64adea8e23ULL, 0x34bba1c9fd1ad32eULL, 0xf6552edf297ba48dULL,
- 0xa09dcd903050c0f0ULL, 0x9ac588a13b4decd7ULL, 0x658c30fa9fbc46d9ULL,
- 0x2a9386d2f815c73fULL, 0xae7e2968c6573ff9ULL, 0x6a98ad7913354c5fULL,
- 0x14303a12060a181eULL, 0x1e28271b050f1411ULL, 0xa4663461c55233f6ULL,
- 0x6688bb7711334455ULL, 0x2f9f06587799c1b6ULL, 0x15c743697c84ed91ULL,
- 0x01f7797b7a8ef58fULL, 0x0de76f757888fd85ULL, 0xb4adf782365ad8eeULL,
- 0x48e0c4541c24706cULL, 0x96d59eaf394be4ddULL, 0xcbf2199259eb7920ULL,
- 0x50c0e84818286078ULL, 0xe98a70bf56fa4513ULL, 0x8df1393eb3c8f645ULL,
- 0x87e92437b0cdfa4aULL, 0xd83d51fc246c90b4ULL, 0xc01d7de0206080a0ULL,
- 0x8bf93239b2cbf240ULL, 0x4be44fd992ab72e0ULL, 0xed71894ea3f8b615ULL,
- 0xba4e137ac05d27e7ULL, 0x851ad6c144cc0d49ULL, 0x5137913362a695f7ULL,
- 0x6080b07010304050ULL, 0x9fc9082bb4c1ea5eULL, 0x3f54c5bb84912aaeULL,
- 0x9722e7d443c51152ULL, 0x4dec44de93a876e5ULL, 0xb65e0574c25b2fedULL,
- 0xa16ab4eb4ade357fULL, 0xa9815b14bddace73ULL, 0x050c808a8f8c0689ULL,
- 0xee7502c32d77b499ULL, 0xaf895013bcd9ca76ULL, 0x6f942df39cb94ad6ULL,
- 0x6177c90b6abeb5dfULL, 0x9d3afadd40c01d5dULL, 0x98367a57cf4c1bd4ULL,
- 0xeb798249a2fbb210ULL, 0x2774e9a7809d3abaULL, 0xbf4293f04fd1216eULL,
- 0x42f8d95d1f217c63ULL, 0x861e5d4cca430fc5ULL, 0xdb39da71aae39238ULL,
- 0x912aecd342c61557ULL
-};
-
-static const u64 T5[256] = {
- 0xb9bb016ad3ba68d2ULL, 0x9ae5b166fc54194dULL, 0x65e2cd14712f93bcULL,
- 0x8725511b9c74b9cdULL, 0xa2f7a457f5530251ULL, 0xd6d003be68d3b86bULL,
- 0xded604b56bd2bd6fULL, 0x52b3fe85d74d6429ULL, 0xbafdad4af0500d5dULL,
- 0x09cf63e0e9ac268aULL, 0x1c0984968a8d830eULL, 0x91a51a4ddcbf79c6ULL,
- 0xa73d4d379070adddULL, 0xaaf1a35cf6520755ULL, 0xa47be117b39ac852ULL,
- 0x5ab5f98ed44c612dULL, 0x0346ac2023ea658fULL, 0xe6c4118462d5a673ULL,
- 0xcc55c268a497f166ULL, 0xc6dc0da86ed1b263ULL, 0x85aa99d05533ffccULL,
- 0xb2fbaa41f3510859ULL, 0xe2c79c0fed5b2a71ULL, 0x59f355aef7a604a2ULL,
- 0xbefe20c17fde815fULL, 0x7aade5a2d848753dULL, 0x29d77fcce5a8329aULL,
- 0xbc71e80ab699c75eULL, 0x96e03be670db904bULL, 0x8dac9edb5632fac8ULL,
- 0xd1952215c4b751e6ULL, 0xb332ceaa19fc2bd7ULL, 0x4b70937338e348abULL,
- 0x8463fd3bbf9edc42ULL, 0xfc41d052ae91ef7eULL, 0xac7de61cb09bcd56ULL,
- 0x437694783be24dafULL, 0xb1bd0661d0bb6dd6ULL, 0x329bdaf1c3415819ULL,
- 0x577917e5b26ecba5ULL, 0x41f95cb3f2a50baeULL, 0x16804b5640cbc00bULL,
- 0x7f670cc2bd6bdab1ULL, 0xdc59cc7ea295fb6eULL, 0x61e1409ffea11fbeULL,
- 0xcb10e3c308f318ebULL, 0xe181302fceb14ffeULL, 0x100c0e1606020a08ULL,
- 0x2e925e6749ccdb17ULL, 0x6ea2663f51c4f337ULL, 0xe84e53cf271d6974ULL,
- 0xa0786c9c3c144450ULL, 0x56b0730e58c3e82bULL, 0x3f57349aa563f291ULL,
- 0x9ee63ced73da954fULL, 0xd2d38e35e75d3469ULL, 0xc2df8023e15f3e61ULL,
- 0xaef22ed779dc8b57ULL, 0xcf136e48877d94e9ULL, 0x2694596c4acdde13ULL,
- 0xdf1f605e817f9ee1ULL, 0xeac19b04ee5a2f75ULL, 0x477519f3b46cc1adULL,
- 0xdad5893ee45c316dULL, 0xeb08ffef04f70cfbULL, 0x2dd4f2476a26be98ULL,
- 0xab38c7b71cff24dbULL, 0x3b54b9112aed7e93ULL, 0x134aa23625e86f87ULL,
- 0x9c69f426ba9dd34eULL, 0x5f7f10eeb16fcea1ULL, 0x04038d8b8f8e8c02ULL,
- 0xc8564fe32b197d64ULL, 0x69e74794fda01abaULL, 0xd31aeade0df017e7ULL,
- 0x3c1198ba8689971eULL, 0x78222d69110f333cULL, 0x3812153109071b1cULL,
- 0x11c56afdecaf2986ULL, 0x8b20db9b10fb30cbULL, 0x4030385818082820ULL,
- 0xa87e6b973f154154ULL, 0x682e237f170d3934ULL, 0x20181c2c0c041410ULL,
- 0x0806070b03010504ULL, 0x074521abac64e98dULL, 0xb6f827ca7cdf845bULL,
- 0x97295f0d9a76b3c5ULL, 0xef0b72648b7980f9ULL, 0xa6f429dc7add8e53ULL,
- 0xf58eb3b2473dc9f4ULL, 0xb074628a3a164e58ULL, 0xe582bda4413fc3fcULL,
- 0xa5b285fc5937ebdcULL, 0x4f731ef8b76dc4a9ULL, 0xdd90a8954838d8e0ULL,
- 0xa1b10877d6b967deULL, 0xbf37442a9573a2d1ULL, 0x1b4ca53d26e96a83ULL,
- 0xb5be8bea5f35e1d4ULL, 0x92e3b66dff551c49ULL, 0xaf3b4a3c9371a8d9ULL,
- 0xff077c728d7b8af1ULL, 0x140f839d898c860aULL, 0xb73143219672a7d5ULL,
- 0x34179fb18588921aULL, 0xe30ef8e407f609ffULL, 0x4dfcd6337e2a82a8ULL,
- 0xed84baaf423ec6f8ULL, 0xcad98728e25e3b65ULL, 0x25d2f54c6927bb9cULL,
- 0x0a89cfc0ca464305ULL, 0x60282474140c3c30ULL, 0x0f4326a0af65ec89ULL,
- 0x676d05dfb868d5bdULL, 0x2f5b3a8ca361f899ULL, 0x180a091d05030f0cULL,
- 0x46bc7d185ec1e223ULL, 0x82efb87bf9571641ULL, 0xfece189967d6a97fULL,
- 0x86ec35f076d99a43ULL, 0xfacd9512e858257dULL, 0x8eea32fb75d89f47ULL,
- 0x17492fbdaa66e385ULL, 0xf6c81f9264d7ac7bULL, 0xcd9ca6834e3ad2e8ULL,
- 0x0e8a424b45c8cf07ULL, 0xfd88b4b9443cccf0ULL, 0x8326dc9013fa35cfULL,
- 0xc453c563a796f462ULL, 0x51f552a5f4a701a6ULL, 0xb477ef01b598c25aULL,
- 0x3352be1a29ec7b97ULL, 0xa9b70f7cd5b862daULL, 0x76a86f2254c7fc3bULL,
- 0x19c36df6efae2c82ULL, 0x6f6b02d4bb69d0b9ULL, 0x62a7ecbfdd4b7a31ULL,
- 0x31dd76d1e0ab3d96ULL, 0x21d178c7e6a9379eULL, 0x1f4f28b6a967e681ULL,
- 0x503c364e1e0a2228ULL, 0x028fc8cbc9474601ULL, 0xc316e4c80bf21defULL,
- 0xc1992c03c2b55beeULL, 0x0dccee6b6622aa88ULL, 0x7b64814932e556b3ULL,
- 0x235eb00c2fee719fULL, 0x99a31d46dfbe7cc2ULL, 0x45fad1387d2b87acULL,
- 0x7c21a0e29e81bf3eULL, 0x906c7ea636125a48ULL, 0x6c2daef49883b536ULL,
- 0xd85a41f52d1b776cULL, 0x70242a62120e3638ULL, 0x05cae9606523af8cULL,
- 0xfb04f1f902f506f3ULL, 0x1283c6ddcf454c09ULL, 0x15c6e7766321a584ULL,
- 0x3e9e50714fced11fULL, 0x72abe2a9db497039ULL, 0x7de8c409742c9cb0ULL,
- 0x9b2cd58d16f93ac3ULL, 0x636e885437e659bfULL, 0xd993251ec7b654e2ULL,
- 0x5df0d825782888a0ULL, 0xb872658139174b5cULL, 0x642ba9ff9b82b032ULL,
- 0xd05c46fe2e1a7268ULL, 0x2c1d96ac808b9d16ULL, 0xa33ec0bc1ffe21dfULL,
- 0x241b91a7838a9812ULL, 0x48363f531b092d24ULL, 0x068c454046c9ca03ULL,
- 0x4c35b2d89487a126ULL, 0x4ab9f798d24e6b25ULL, 0x5b7c9d653ee142a3ULL,
- 0x6de4ca1f722e96b8ULL, 0x7362864231e453b7ULL, 0x537a9a6e3de047a7ULL,
- 0x0b40ab2b20eb608bULL, 0xf447d759ad90ea7aULL, 0x49ff5bb8f1a40eaaULL,
- 0xf0445ad2221e6678ULL, 0x5c39bcce9285ab2eULL, 0x275d3d87a060fd9dULL,
- 0x0000000000000000ULL, 0x35defb5a6f25b194ULL, 0xf302f6f201f403f7ULL,
- 0xdb1cedd50ef112e3ULL, 0xd45fcb75a194fe6aULL, 0x583a31451d0b272cULL,
- 0x6b688f5f34e75cbbULL, 0x8f2356109f75bcc9ULL, 0x2b58b7072cef749bULL,
- 0xbdb88ce15c34e4d0ULL, 0x95a697c65331f5c4ULL, 0xeec2168f61d4a377ULL,
- 0xceda0aa36dd0b767ULL, 0x4433b5d39786a422ULL, 0xd7196755827e9be5ULL,
- 0x01c964ebeaad238eULL, 0xbb34c9a11afd2ed3ULL, 0x55f6df2e7b298da4ULL,
- 0x9da090cd5030f0c0ULL, 0xc59aa1884d3bd7ecULL, 0x8c65fa30bc9fd946ULL,
- 0x932ad28615f83fc7ULL, 0x7eae682957c6f93fULL, 0x986a79ad35135f4cULL,
- 0x3014123a0a061e18ULL, 0x281e1b270f051114ULL, 0x66a4613452c5f633ULL,
- 0x886677bb33115544ULL, 0x9f2f58069977b6c1ULL, 0xc7156943847c91edULL,
- 0xf7017b798e7a8ff5ULL, 0xe70d756f887885fdULL, 0xadb482f75a36eed8ULL,
- 0xe04854c4241c6c70ULL, 0xd596af9e4b39dde4ULL, 0xf2cb9219eb592079ULL,
- 0xc05048e828187860ULL, 0x8ae9bf70fa561345ULL, 0xf18d3e39c8b345f6ULL,
- 0xe9873724cdb04afaULL, 0x3dd8fc516c24b490ULL, 0x1dc0e07d6020a080ULL,
- 0xf98b3932cbb240f2ULL, 0xe44bd94fab92e072ULL, 0x71ed4e89f8a315b6ULL,
- 0x4eba7a135dc0e727ULL, 0x1a85c1d6cc44490dULL, 0x37513391a662f795ULL,
- 0x806070b030105040ULL, 0xc99f2b08c1b45eeaULL, 0x543fbbc59184ae2aULL,
- 0x2297d4e7c5435211ULL, 0xec4dde44a893e576ULL, 0x5eb674055bc2ed2fULL,
- 0x6aa1ebb4de4a7f35ULL, 0x81a9145bdabd73ceULL, 0x0c058a808c8f8906ULL,
- 0x75eec302772d99b4ULL, 0x89af1350d9bc76caULL, 0x946ff32db99cd64aULL,
- 0x77610bc9be6adfb5ULL, 0x3a9dddfac0405d1dULL, 0x3698577a4ccfd41bULL,
- 0x79eb4982fba210b2ULL, 0x7427a7e99d80ba3aULL, 0x42bff093d14f6e21ULL,
- 0xf8425dd9211f637cULL, 0x1e864c5d43cac50fULL, 0x39db71dae3aa3892ULL,
- 0x2a91d3ecc6425715ULL
-};
-
-static const u64 T6[256] = {
- 0x6a01bbb9d268bad3ULL, 0x66b1e59a4d1954fcULL, 0x14cde265bc932f71ULL,
- 0x1b512587cdb9749cULL, 0x57a4f7a2510253f5ULL, 0xbe03d0d66bb8d368ULL,
- 0xb504d6de6fbdd26bULL, 0x85feb35229644dd7ULL, 0x4aadfdba5d0d50f0ULL,
- 0xe063cf098a26ace9ULL, 0x9684091c0e838d8aULL, 0x4d1aa591c679bfdcULL,
- 0x374d3da7ddad7090ULL, 0x5ca3f1aa550752f6ULL, 0x17e17ba452c89ab3ULL,
- 0x8ef9b55a2d614cd4ULL, 0x20ac46038f65ea23ULL, 0x8411c4e673a6d562ULL,
- 0x68c255cc66f197a4ULL, 0xa80ddcc663b2d16eULL, 0xd099aa85ccff3355ULL,
- 0x41aafbb2590851f3ULL, 0x0f9cc7e2712a5bedULL, 0xae55f359a204a6f7ULL,
- 0xc120febe5f81de7fULL, 0xa2e5ad7a3d7548d8ULL, 0xcc7fd7299a32a8e5ULL,
- 0x0ae871bc5ec799b6ULL, 0xe63be0964b90db70ULL, 0xdb9eac8dc8fa3256ULL,
- 0x152295d1e651b7c4ULL, 0xaace32b3d72bfc19ULL, 0x7393704bab48e338ULL,
- 0x3bfd638442dc9ebfULL, 0x52d041fc7eef91aeULL, 0x1ce67dac56cd9bb0ULL,
- 0x78947643af4de23bULL, 0x6106bdb1d66dbbd0ULL, 0xf1da9b32195841c3ULL,
- 0xe5177957a5cb6eb2ULL, 0xb35cf941ae0ba5f2ULL, 0x564b80160bc0cb40ULL,
- 0xc20c677fb1da6bbdULL, 0x7ecc59dc6efb95a2ULL, 0x9f40e161be1fa1feULL,
- 0xc3e310cbeb18f308ULL, 0x2f3081e1fe4fb1ceULL, 0x160e0c10080a0206ULL,
- 0x675e922e17dbcc49ULL, 0x3f66a26e37f3c451ULL, 0xcf534ee874691d27ULL,
- 0x9c6c78a05044143cULL, 0x0e73b0562be8c358ULL, 0x9a34573f91f263a5ULL,
- 0xed3ce69e4f95da73ULL, 0x358ed3d269345de7ULL, 0x2380dfc2613e5fe1ULL,
- 0xd72ef2ae578bdc79ULL, 0x486e13cfe9947d87ULL, 0x6c59942613decd4aULL,
- 0x5e601fdfe19e7f81ULL, 0x049bc1ea752f5aeeULL, 0xf3197547adc16cb4ULL,
- 0x3e89d5da6d315ce4ULL, 0xefff08ebfb0cf704ULL, 0x47f2d42d98be266aULL,
- 0xb7c738abdb24ff1cULL, 0x11b9543b937eed2aULL, 0x36a24a13876fe825ULL,
- 0x26f4699c4ed39dbaULL, 0xee107f5fa1ce6fb1ULL, 0x8b8d0304028c8e8fULL,
- 0xe34f56c8647d192bULL, 0x9447e769ba1aa0fdULL, 0xdeea1ad3e717f00dULL,
- 0xba98113c1e978986ULL, 0x692d22783c330f11ULL, 0x311512381c1b0709ULL,
- 0xfd6ac5118629afecULL, 0x9bdb208bcb30fb10ULL, 0x5838304020280818ULL,
- 0x976b7ea85441153fULL, 0x7f232e6834390d17ULL, 0x2c1c18201014040cULL,
- 0x0b07060804050103ULL, 0xab2145078de964acULL, 0xca27f8b65b84df7cULL,
- 0x0d5f2997c5b3769aULL, 0x64720beff980798bULL, 0xdc29f4a6538edd7aULL,
- 0xb2b38ef5f4c93d47ULL, 0x8a6274b0584e163aULL, 0xa4bd82e5fcc33f41ULL,
- 0xfc85b2a5dceb3759ULL, 0xf81e734fa9c46db7ULL, 0x95a890dde0d83848ULL,
- 0x7708b1a1de67b9d6ULL, 0x2a4437bfd1a27395ULL, 0x3da54c1b836ae926ULL,
- 0xea8bbeb5d4e1355fULL, 0x6db6e392491c55ffULL, 0x3c4a3bafd9a87193ULL,
- 0x727c07fff18a7b8dULL, 0x9d830f140a868c89ULL, 0x214331b7d5a77296ULL,
- 0xb19f17341a928885ULL, 0xe4f80ee3ff09f607ULL, 0x33d6fc4da8822a7eULL,
- 0xafba84edf8c63e42ULL, 0x2887d9ca653b5ee2ULL, 0x4cf5d2259cbb2769ULL,
- 0xc0cf890a054346caULL, 0x74242860303c0c14ULL, 0xa026430f89ec65afULL,
- 0xdf056d67bdd568b8ULL, 0x8c3a5b2f99f861a3ULL, 0x1d090a180c0f0305ULL,
- 0x187dbc4623e2c15eULL, 0x7bb8ef82411657f9ULL, 0x9918cefe7fa9d667ULL,
- 0xf035ec86439ad976ULL, 0x1295cdfa7d2558e8ULL, 0xfb32ea8e479fd875ULL,
- 0xbd2f491785e366aaULL, 0x921fc8f67bacd764ULL, 0x83a69ccde8d23a4eULL,
- 0x4b428a0e07cfc845ULL, 0xb9b488fdf0cc3c44ULL, 0x90dc2683cf35fa13ULL,
- 0x63c553c462f496a7ULL, 0xa552f551a601a7f4ULL, 0x01ef77b45ac298b5ULL,
- 0x1abe5233977bec29ULL, 0x7c0fb7a9da62b8d5ULL, 0x226fa8763bfcc754ULL,
- 0xf66dc319822caeefULL, 0xd4026b6fb9d069bbULL, 0xbfeca762317a4bddULL,
- 0xd176dd31963dabe0ULL, 0xc778d1219e37a9e6ULL, 0xb6284f1f81e667a9ULL,
- 0x4e363c5028220a1eULL, 0xcbc88f02014647c9ULL, 0xc8e416c3ef1df20bULL,
- 0x032c99c1ee5bb5c2ULL, 0x6beecc0d88aa2266ULL, 0x4981647bb356e532ULL,
- 0x0cb05e239f71ee2fULL, 0x461da399c27cbedfULL, 0x38d1fa45ac872b7dULL,
- 0xe2a0217c3ebf819eULL, 0xa67e6c90485a1236ULL, 0xf4ae2d6c36b58398ULL,
- 0xf5415ad86c771b2dULL, 0x622a247038360e12ULL, 0x60e9ca058caf2365ULL,
- 0xf9f104fbf306f502ULL, 0xddc68312094c45cfULL, 0x76e7c61584a52163ULL,
- 0x71509e3e1fd1ce4fULL, 0xa9e2ab72397049dbULL, 0x09c4e87db09c2c74ULL,
- 0x8dd52c9bc33af916ULL, 0x54886e63bf59e637ULL, 0x1e2593d9e254b6c7ULL,
- 0x25d8f05da0882878ULL, 0x816572b85c4b1739ULL, 0xffa92b6432b0829bULL,
- 0xfe465cd068721a2eULL, 0xac961d2c169d8b80ULL, 0xbcc03ea3df21fe1fULL,
- 0xa7911b2412988a83ULL, 0x533f3648242d091bULL, 0x40458c0603cac946ULL,
- 0xd8b2354c26a18794ULL, 0x98f7b94a256b4ed2ULL, 0x659d7c5ba342e13eULL,
- 0x1fcae46db8962e72ULL, 0x42866273b753e431ULL, 0x6e9a7a53a747e03dULL,
- 0x2bab400b8b60eb20ULL, 0x59d747f47aea90adULL, 0xb85bff49aa0ea4f1ULL,
- 0xd25a44f078661e22ULL, 0xcebc395c2eab8592ULL, 0x873d5d279dfd60a0ULL,
- 0x0000000000000000ULL, 0x5afbde3594b1256fULL, 0xf2f602f3f703f401ULL,
- 0xd5ed1cdbe312f10eULL, 0x75cb5fd46afe94a1ULL, 0x45313a582c270b1dULL,
- 0x5f8f686bbb5ce734ULL, 0x1056238fc9bc759fULL, 0x07b7582b9b74ef2cULL,
- 0xe18cb8bdd0e4345cULL, 0xc697a695c4f53153ULL, 0x8f16c2ee77a3d461ULL,
- 0xa30adace67b7d06dULL, 0xd3b5334422a48697ULL, 0x556719d7e59b7e82ULL,
- 0xeb64c9018e23adeaULL, 0xa1c934bbd32efd1aULL, 0x2edff655a48d297bULL,
- 0xcd90a09dc0f03050ULL, 0x88a19ac5ecd73b4dULL, 0x30fa658c46d99fbcULL,
- 0x86d22a93c73ff815ULL, 0x2968ae7e3ff9c657ULL, 0xad796a984c5f1335ULL,
- 0x3a121430181e060aULL, 0x271b1e281411050fULL, 0x3461a46633f6c552ULL,
- 0xbb77668844551133ULL, 0x06582f9fc1b67799ULL, 0x436915c7ed917c84ULL,
- 0x797b01f7f58f7a8eULL, 0x6f750de7fd857888ULL, 0xf782b4add8ee365aULL,
- 0xc45448e0706c1c24ULL, 0x9eaf96d5e4dd394bULL, 0x1992cbf2792059ebULL,
- 0xe84850c060781828ULL, 0x70bfe98a451356faULL, 0x393e8df1f645b3c8ULL,
- 0x243787e9fa4ab0cdULL, 0x51fcd83d90b4246cULL, 0x7de0c01d80a02060ULL,
- 0x32398bf9f240b2cbULL, 0x4fd94be472e092abULL, 0x894eed71b615a3f8ULL,
- 0x137aba4e27e7c05dULL, 0xd6c1851a0d4944ccULL, 0x9133513795f762a6ULL,
- 0xb070608040501030ULL, 0x082b9fc9ea5eb4c1ULL, 0xc5bb3f542aae8491ULL,
- 0xe7d49722115243c5ULL, 0x44de4dec76e593a8ULL, 0x0574b65e2fedc25bULL,
- 0xb4eba16a357f4adeULL, 0x5b14a981ce73bddaULL, 0x808a050c06898f8cULL,
- 0x02c3ee75b4992d77ULL, 0x5013af89ca76bcd9ULL, 0x2df36f944ad69cb9ULL,
- 0xc90b6177b5df6abeULL, 0xfadd9d3a1d5d40c0ULL, 0x7a5798361bd4cf4cULL,
- 0x8249eb79b210a2fbULL, 0xe9a727743aba809dULL, 0x93f0bf42216e4fd1ULL,
- 0xd95d42f87c631f21ULL, 0x5d4c861e0fc5ca43ULL, 0xda71db399238aae3ULL,
- 0xecd3912a155742c6ULL
-};
-
-static const u64 T7[256] = {
- 0x016ab9bb68d2d3baULL, 0xb1669ae5194dfc54ULL, 0xcd1465e293bc712fULL,
- 0x511b8725b9cd9c74ULL, 0xa457a2f70251f553ULL, 0x03bed6d0b86b68d3ULL,
- 0x04b5ded6bd6f6bd2ULL, 0xfe8552b36429d74dULL, 0xad4abafd0d5df050ULL,
- 0x63e009cf268ae9acULL, 0x84961c09830e8a8dULL, 0x1a4d91a579c6dcbfULL,
- 0x4d37a73daddd9070ULL, 0xa35caaf10755f652ULL, 0xe117a47bc852b39aULL,
- 0xf98e5ab5612dd44cULL, 0xac200346658f23eaULL, 0x1184e6c4a67362d5ULL,
- 0xc268cc55f166a497ULL, 0x0da8c6dcb2636ed1ULL, 0x99d085aaffcc5533ULL,
- 0xaa41b2fb0859f351ULL, 0x9c0fe2c72a71ed5bULL, 0x55ae59f304a2f7a6ULL,
- 0x20c1befe815f7fdeULL, 0xe5a27aad753dd848ULL, 0x7fcc29d7329ae5a8ULL,
- 0xe80abc71c75eb699ULL, 0x3be696e0904b70dbULL, 0x9edb8dacfac85632ULL,
- 0x2215d19551e6c4b7ULL, 0xceaab3322bd719fcULL, 0x93734b7048ab38e3ULL,
- 0xfd3b8463dc42bf9eULL, 0xd052fc41ef7eae91ULL, 0xe61cac7dcd56b09bULL,
- 0x947843764daf3be2ULL, 0x0661b1bd6dd6d0bbULL, 0xdaf1329b5819c341ULL,
- 0x17e55779cba5b26eULL, 0x5cb341f90baef2a5ULL, 0x4b561680c00b40cbULL,
- 0x0cc27f67dab1bd6bULL, 0xcc7edc59fb6ea295ULL, 0x409f61e11fbefea1ULL,
- 0xe3c3cb1018eb08f3ULL, 0x302fe1814ffeceb1ULL, 0x0e16100c0a080602ULL,
- 0x5e672e92db1749ccULL, 0x663f6ea2f33751c4ULL, 0x53cfe84e6974271dULL,
- 0x6c9ca07844503c14ULL, 0x730e56b0e82b58c3ULL, 0x349a3f57f291a563ULL,
- 0x3ced9ee6954f73daULL, 0x8e35d2d33469e75dULL, 0x8023c2df3e61e15fULL,
- 0x2ed7aef28b5779dcULL, 0x6e48cf1394e9877dULL, 0x596c2694de134acdULL,
- 0x605edf1f9ee1817fULL, 0x9b04eac12f75ee5aULL, 0x19f34775c1adb46cULL,
- 0x893edad5316de45cULL, 0xffefeb080cfb04f7ULL, 0xf2472dd4be986a26ULL,
- 0xc7b7ab3824db1cffULL, 0xb9113b547e932aedULL, 0xa236134a6f8725e8ULL,
- 0xf4269c69d34eba9dULL, 0x10ee5f7fcea1b16fULL, 0x8d8b04038c028f8eULL,
- 0x4fe3c8567d642b19ULL, 0x479469e71abafda0ULL, 0xeaded31a17e70df0ULL,
- 0x98ba3c11971e8689ULL, 0x2d697822333c110fULL, 0x153138121b1c0907ULL,
- 0x6afd11c52986ecafULL, 0xdb9b8b2030cb10fbULL, 0x3858403028201808ULL,
- 0x6b97a87e41543f15ULL, 0x237f682e3934170dULL, 0x1c2c201814100c04ULL,
- 0x070b080605040301ULL, 0x21ab0745e98dac64ULL, 0x27cab6f8845b7cdfULL,
- 0x5f0d9729b3c59a76ULL, 0x7264ef0b80f98b79ULL, 0x29dca6f48e537addULL,
- 0xb3b2f58ec9f4473dULL, 0x628ab0744e583a16ULL, 0xbda4e582c3fc413fULL,
- 0x85fca5b2ebdc5937ULL, 0x1ef84f73c4a9b76dULL, 0xa895dd90d8e04838ULL,
- 0x0877a1b167ded6b9ULL, 0x442abf37a2d19573ULL, 0xa53d1b4c6a8326e9ULL,
- 0x8beab5bee1d45f35ULL, 0xb66d92e31c49ff55ULL, 0x4a3caf3ba8d99371ULL,
- 0x7c72ff078af18d7bULL, 0x839d140f860a898cULL, 0x4321b731a7d59672ULL,
- 0x9fb13417921a8588ULL, 0xf8e4e30e09ff07f6ULL, 0xd6334dfc82a87e2aULL,
- 0xbaafed84c6f8423eULL, 0x8728cad93b65e25eULL, 0xf54c25d2bb9c6927ULL,
- 0xcfc00a894305ca46ULL, 0x247460283c30140cULL, 0x26a00f43ec89af65ULL,
- 0x05df676dd5bdb868ULL, 0x3a8c2f5bf899a361ULL, 0x091d180a0f0c0503ULL,
- 0x7d1846bce2235ec1ULL, 0xb87b82ef1641f957ULL, 0x1899fecea97f67d6ULL,
- 0x35f086ec9a4376d9ULL, 0x9512facd257de858ULL, 0x32fb8eea9f4775d8ULL,
- 0x2fbd1749e385aa66ULL, 0x1f92f6c8ac7b64d7ULL, 0xa683cd9cd2e84e3aULL,
- 0x424b0e8acf0745c8ULL, 0xb4b9fd88ccf0443cULL, 0xdc90832635cf13faULL,
- 0xc563c453f462a796ULL, 0x52a551f501a6f4a7ULL, 0xef01b477c25ab598ULL,
- 0xbe1a33527b9729ecULL, 0x0f7ca9b762dad5b8ULL, 0x6f2276a8fc3b54c7ULL,
- 0x6df619c32c82efaeULL, 0x02d46f6bd0b9bb69ULL, 0xecbf62a77a31dd4bULL,
- 0x76d131dd3d96e0abULL, 0x78c721d1379ee6a9ULL, 0x28b61f4fe681a967ULL,
- 0x364e503c22281e0aULL, 0xc8cb028f4601c947ULL, 0xe4c8c3161def0bf2ULL,
- 0x2c03c1995beec2b5ULL, 0xee6b0dccaa886622ULL, 0x81497b6456b332e5ULL,
- 0xb00c235e719f2feeULL, 0x1d4699a37cc2dfbeULL, 0xd13845fa87ac7d2bULL,
- 0xa0e27c21bf3e9e81ULL, 0x7ea6906c5a483612ULL, 0xaef46c2db5369883ULL,
- 0x41f5d85a776c2d1bULL, 0x2a6270243638120eULL, 0xe96005caaf8c6523ULL,
- 0xf1f9fb0406f302f5ULL, 0xc6dd12834c09cf45ULL, 0xe77615c6a5846321ULL,
- 0x50713e9ed11f4fceULL, 0xe2a972ab7039db49ULL, 0xc4097de89cb0742cULL,
- 0xd58d9b2c3ac316f9ULL, 0x8854636e59bf37e6ULL, 0x251ed99354e2c7b6ULL,
- 0xd8255df088a07828ULL, 0x6581b8724b5c3917ULL, 0xa9ff642bb0329b82ULL,
- 0x46fed05c72682e1aULL, 0x96ac2c1d9d16808bULL, 0xc0bca33e21df1ffeULL,
- 0x91a7241b9812838aULL, 0x3f5348362d241b09ULL, 0x4540068cca0346c9ULL,
- 0xb2d84c35a1269487ULL, 0xf7984ab96b25d24eULL, 0x9d655b7c42a33ee1ULL,
- 0xca1f6de496b8722eULL, 0x8642736253b731e4ULL, 0x9a6e537a47a73de0ULL,
- 0xab2b0b40608b20ebULL, 0xd759f447ea7aad90ULL, 0x5bb849ff0eaaf1a4ULL,
- 0x5ad2f0446678221eULL, 0xbcce5c39ab2e9285ULL, 0x3d87275dfd9da060ULL,
- 0x0000000000000000ULL, 0xfb5a35deb1946f25ULL, 0xf6f2f30203f701f4ULL,
- 0xedd5db1c12e30ef1ULL, 0xcb75d45ffe6aa194ULL, 0x3145583a272c1d0bULL,
- 0x8f5f6b685cbb34e7ULL, 0x56108f23bcc99f75ULL, 0xb7072b58749b2cefULL,
- 0x8ce1bdb8e4d05c34ULL, 0x97c695a6f5c45331ULL, 0x168feec2a37761d4ULL,
- 0x0aa3cedab7676dd0ULL, 0xb5d34433a4229786ULL, 0x6755d7199be5827eULL,
- 0x64eb01c9238eeaadULL, 0xc9a1bb342ed31afdULL, 0xdf2e55f68da47b29ULL,
- 0x90cd9da0f0c05030ULL, 0xa188c59ad7ec4d3bULL, 0xfa308c65d946bc9fULL,
- 0xd286932a3fc715f8ULL, 0x68297eaef93f57c6ULL, 0x79ad986a5f4c3513ULL,
- 0x123a30141e180a06ULL, 0x1b27281e11140f05ULL, 0x613466a4f63352c5ULL,
- 0x77bb886655443311ULL, 0x58069f2fb6c19977ULL, 0x6943c71591ed847cULL,
- 0x7b79f7018ff58e7aULL, 0x756fe70d85fd8878ULL, 0x82f7adb4eed85a36ULL,
- 0x54c4e0486c70241cULL, 0xaf9ed596dde44b39ULL, 0x9219f2cb2079eb59ULL,
- 0x48e8c05078602818ULL, 0xbf708ae91345fa56ULL, 0x3e39f18d45f6c8b3ULL,
- 0x3724e9874afacdb0ULL, 0xfc513dd8b4906c24ULL, 0xe07d1dc0a0806020ULL,
- 0x3932f98b40f2cbb2ULL, 0xd94fe44be072ab92ULL, 0x4e8971ed15b6f8a3ULL,
- 0x7a134ebae7275dc0ULL, 0xc1d61a85490dcc44ULL, 0x33913751f795a662ULL,
- 0x70b0806050403010ULL, 0x2b08c99f5eeac1b4ULL, 0xbbc5543fae2a9184ULL,
- 0xd4e722975211c543ULL, 0xde44ec4de576a893ULL, 0x74055eb6ed2f5bc2ULL,
- 0xebb46aa17f35de4aULL, 0x145b81a973cedabdULL, 0x8a800c0589068c8fULL,
- 0xc30275ee99b4772dULL, 0x135089af76cad9bcULL, 0xf32d946fd64ab99cULL,
- 0x0bc97761dfb5be6aULL, 0xddfa3a9d5d1dc040ULL, 0x577a3698d41b4ccfULL,
- 0x498279eb10b2fba2ULL, 0xa7e97427ba3a9d80ULL, 0xf09342bf6e21d14fULL,
- 0x5dd9f842637c211fULL, 0x4c5d1e86c50f43caULL, 0x71da39db3892e3aaULL,
- 0xd3ec2a915715c642ULL
-};
-
-static const u64 c[KHAZAD_ROUNDS + 1] = {
- 0xba542f7453d3d24dULL, 0x50ac8dbf70529a4cULL, 0xead597d133515ba6ULL,
- 0xde48a899db32b7fcULL, 0xe39e919be2bb416eULL, 0xa5cb6b95a1f3b102ULL,
- 0xccc41d14c363da5dULL, 0x5fdc7dcd7f5a6c5cULL, 0xf726ffede89d6f8eULL
-};
-
-static int khazad_setkey(void *ctx_arg, const u8 *in_key,
- unsigned int key_len, u32 *flags)
-{
-
- struct khazad_ctx *ctx = ctx_arg;
- int r;
- const u64 *S = T7;
- u64 K2, K1;
-
- if (key_len != 16)
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
-
- K2 = ((u64)in_key[ 0] << 56) ^
- ((u64)in_key[ 1] << 48) ^
- ((u64)in_key[ 2] << 40) ^
- ((u64)in_key[ 3] << 32) ^
- ((u64)in_key[ 4] << 24) ^
- ((u64)in_key[ 5] << 16) ^
- ((u64)in_key[ 6] << 8) ^
- ((u64)in_key[ 7] );
- K1 = ((u64)in_key[ 8] << 56) ^
- ((u64)in_key[ 9] << 48) ^
- ((u64)in_key[10] << 40) ^
- ((u64)in_key[11] << 32) ^
- ((u64)in_key[12] << 24) ^
- ((u64)in_key[13] << 16) ^
- ((u64)in_key[14] << 8) ^
- ((u64)in_key[15] );
-
- /* setup the encrypt key */
- for (r = 0; r <= KHAZAD_ROUNDS; r++) {
- ctx->E[r] = T0[(int)(K1 >> 56) ] ^
- T1[(int)(K1 >> 48) & 0xff] ^
- T2[(int)(K1 >> 40) & 0xff] ^
- T3[(int)(K1 >> 32) & 0xff] ^
- T4[(int)(K1 >> 24) & 0xff] ^
- T5[(int)(K1 >> 16) & 0xff] ^
- T6[(int)(K1 >> 8) & 0xff] ^
- T7[(int)(K1 ) & 0xff] ^
- c[r] ^ K2;
- K2 = K1;
- K1 = ctx->E[r];
- }
- /* Setup the decrypt key */
- ctx->D[0] = ctx->E[KHAZAD_ROUNDS];
- for (r = 1; r < KHAZAD_ROUNDS; r++) {
- K1 = ctx->E[KHAZAD_ROUNDS - r];
- ctx->D[r] = T0[(int)S[(int)(K1 >> 56) ] & 0xff] ^
- T1[(int)S[(int)(K1 >> 48) & 0xff] & 0xff] ^
- T2[(int)S[(int)(K1 >> 40) & 0xff] & 0xff] ^
- T3[(int)S[(int)(K1 >> 32) & 0xff] & 0xff] ^
- T4[(int)S[(int)(K1 >> 24) & 0xff] & 0xff] ^
- T5[(int)S[(int)(K1 >> 16) & 0xff] & 0xff] ^
- T6[(int)S[(int)(K1 >> 8) & 0xff] & 0xff] ^
- T7[(int)S[(int)(K1 ) & 0xff] & 0xff];
- }
- ctx->D[KHAZAD_ROUNDS] = ctx->E[0];
-
- return 0;
-
-}
-
-static void khazad_crypt(const u64 roundKey[KHAZAD_ROUNDS + 1],
- u8 *ciphertext, const u8 *plaintext)
-{
-
- int r;
- u64 state;
-
- state = ((u64)plaintext[0] << 56) ^
- ((u64)plaintext[1] << 48) ^
- ((u64)plaintext[2] << 40) ^
- ((u64)plaintext[3] << 32) ^
- ((u64)plaintext[4] << 24) ^
- ((u64)plaintext[5] << 16) ^
- ((u64)plaintext[6] << 8) ^
- ((u64)plaintext[7] ) ^
- roundKey[0];
-
- for (r = 1; r < KHAZAD_ROUNDS; r++) {
- state = T0[(int)(state >> 56) ] ^
- T1[(int)(state >> 48) & 0xff] ^
- T2[(int)(state >> 40) & 0xff] ^
- T3[(int)(state >> 32) & 0xff] ^
- T4[(int)(state >> 24) & 0xff] ^
- T5[(int)(state >> 16) & 0xff] ^
- T6[(int)(state >> 8) & 0xff] ^
- T7[(int)(state ) & 0xff] ^
- roundKey[r];
- }
-
- state = (T0[(int)(state >> 56) ] & 0xff00000000000000ULL) ^
- (T1[(int)(state >> 48) & 0xff] & 0x00ff000000000000ULL) ^
- (T2[(int)(state >> 40) & 0xff] & 0x0000ff0000000000ULL) ^
- (T3[(int)(state >> 32) & 0xff] & 0x000000ff00000000ULL) ^
- (T4[(int)(state >> 24) & 0xff] & 0x00000000ff000000ULL) ^
- (T5[(int)(state >> 16) & 0xff] & 0x0000000000ff0000ULL) ^
- (T6[(int)(state >> 8) & 0xff] & 0x000000000000ff00ULL) ^
- (T7[(int)(state ) & 0xff] & 0x00000000000000ffULL) ^
- roundKey[KHAZAD_ROUNDS];
-
- ciphertext[0] = (u8)(state >> 56);
- ciphertext[1] = (u8)(state >> 48);
- ciphertext[2] = (u8)(state >> 40);
- ciphertext[3] = (u8)(state >> 32);
- ciphertext[4] = (u8)(state >> 24);
- ciphertext[5] = (u8)(state >> 16);
- ciphertext[6] = (u8)(state >> 8);
- ciphertext[7] = (u8)(state );
-
-}
-
-static void khazad_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
- struct khazad_ctx *ctx = ctx_arg;
- khazad_crypt(ctx->E, dst, src);
-}
-
-static void khazad_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
- struct khazad_ctx *ctx = ctx_arg;
- khazad_crypt(ctx->D, dst, src);
-}
-
-static struct crypto_alg khazad_alg = {
- .cra_name = "khazad",
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = KHAZAD_BLOCK_SIZE,
- .cra_ctxsize = sizeof (struct khazad_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(khazad_alg.cra_list),
- .cra_u = { .cipher = {
- .cia_min_keysize = KHAZAD_KEY_SIZE,
- .cia_max_keysize = KHAZAD_KEY_SIZE,
- .cia_setkey = khazad_setkey,
- .cia_encrypt = khazad_encrypt,
- .cia_decrypt = khazad_decrypt } }
-};
-
-static int __init init(void)
-{
- int ret = 0;
-
- ret = crypto_register_alg(&khazad_alg);
- return ret;
-}
-
-static void __exit fini(void)
-{
- crypto_unregister_alg(&khazad_alg);
-}
-
-
-module_init(init);
-module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Khazad Cryptographic Algorithm");
+++ /dev/null
-/*
- * Cryptographic API.
- *
- * TEA and Xtended TEA Algorithms
- *
- * The TEA and Xtended TEA algorithms were developed by David Wheeler
- * and Roger Needham at the Computer Laboratory of Cambridge University.
- *
- * Copyright (c) 2004 Aaron Grothe ajgrothe@yahoo.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <asm/scatterlist.h>
-#include <linux/crypto.h>
-
-#define TEA_KEY_SIZE 16
-#define TEA_BLOCK_SIZE 8
-#define TEA_ROUNDS 32
-#define TEA_DELTA 0x9e3779b9
-
-#define XTEA_KEY_SIZE 16
-#define XTEA_BLOCK_SIZE 8
-#define XTEA_ROUNDS 32
-#define XTEA_DELTA 0x9e3779b9
-
-#define u32_in(x) le32_to_cpu(*(const u32 *)(x))
-#define u32_out(to, from) (*(u32 *)(to) = cpu_to_le32(from))
-
-struct tea_ctx {
- u32 KEY[4];
-};
-
-struct xtea_ctx {
- u32 KEY[4];
-};
-
-static int tea_setkey(void *ctx_arg, const u8 *in_key,
- unsigned int key_len, u32 *flags)
-{
-
- struct tea_ctx *ctx = ctx_arg;
-
- if (key_len != 16)
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
-
- ctx->KEY[0] = u32_in (in_key);
- ctx->KEY[1] = u32_in (in_key + 4);
- ctx->KEY[2] = u32_in (in_key + 8);
- ctx->KEY[3] = u32_in (in_key + 12);
-
- return 0;
-
-}
-
-static void tea_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
- u32 y, z, n, sum = 0;
- u32 k0, k1, k2, k3;
-
- struct tea_ctx *ctx = ctx_arg;
-
- y = u32_in (src);
- z = u32_in (src + 4);
-
- k0 = ctx->KEY[0];
- k1 = ctx->KEY[1];
- k2 = ctx->KEY[2];
- k3 = ctx->KEY[3];
-
- n = TEA_ROUNDS;
-
- while (n-- > 0) {
- sum += TEA_DELTA;
- y += ((z << 4) + k0) ^ (z + sum) ^ ((z >> 5) + k1);
- z += ((y << 4) + k2) ^ (y + sum) ^ ((y >> 5) + k3);
- }
-
- u32_out (dst, y);
- u32_out (dst + 4, z);
-}
-
-static void tea_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
- u32 y, z, n, sum;
- u32 k0, k1, k2, k3;
-
- struct tea_ctx *ctx = ctx_arg;
-
- y = u32_in (src);
- z = u32_in (src + 4);
-
- k0 = ctx->KEY[0];
- k1 = ctx->KEY[1];
- k2 = ctx->KEY[2];
- k3 = ctx->KEY[3];
-
- sum = TEA_DELTA << 5;
-
- n = TEA_ROUNDS;
-
- while (n-- > 0) {
- z -= ((y << 4) + k2) ^ (y + sum) ^ ((y >> 5) + k3);
- y -= ((z << 4) + k0) ^ (z + sum) ^ ((z >> 5) + k1);
- sum -= TEA_DELTA;
- }
-
- u32_out (dst, y);
- u32_out (dst + 4, z);
-
-}
-
-static int xtea_setkey(void *ctx_arg, const u8 *in_key,
- unsigned int key_len, u32 *flags)
-{
-
- struct xtea_ctx *ctx = ctx_arg;
-
- if (key_len != 16)
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
-
- ctx->KEY[0] = u32_in (in_key);
- ctx->KEY[1] = u32_in (in_key + 4);
- ctx->KEY[2] = u32_in (in_key + 8);
- ctx->KEY[3] = u32_in (in_key + 12);
-
- return 0;
-
-}
-
-static void xtea_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
-
- u32 y, z, sum = 0;
- u32 limit = XTEA_DELTA * XTEA_ROUNDS;
-
- struct xtea_ctx *ctx = ctx_arg;
-
- y = u32_in (src);
- z = u32_in (src + 4);
-
- while (sum != limit) {
- y += (z << 4 ^ z >> 5) + (z ^ sum) + ctx->KEY[sum&3];
- sum += TEA_DELTA;
- z += (y << 4 ^ y >> 5) + (y ^ sum) + ctx->KEY[sum>>11 &3];
- }
-
- u32_out (dst, y);
- u32_out (dst + 4, z);
-
-}
-
-static void xtea_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
-{
-
- u32 y, z, sum;
- struct tea_ctx *ctx = ctx_arg;
-
- y = u32_in (src);
- z = u32_in (src + 4);
-
- sum = XTEA_DELTA * XTEA_ROUNDS;
-
- while (sum) {
- z -= (y << 4 ^ y >> 5) + (y ^ sum) + ctx->KEY[sum>>11 & 3];
- sum -= XTEA_DELTA;
- y -= (z << 4 ^ z >> 5) + (z ^ sum) + ctx->KEY[sum & 3];
- }
-
- u32_out (dst, y);
- u32_out (dst + 4, z);
-
-}
-
-static struct crypto_alg tea_alg = {
- .cra_name = "tea",
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = TEA_BLOCK_SIZE,
- .cra_ctxsize = sizeof (struct tea_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(tea_alg.cra_list),
- .cra_u = { .cipher = {
- .cia_min_keysize = TEA_KEY_SIZE,
- .cia_max_keysize = TEA_KEY_SIZE,
- .cia_setkey = tea_setkey,
- .cia_encrypt = tea_encrypt,
- .cia_decrypt = tea_decrypt } }
-};
-
-static struct crypto_alg xtea_alg = {
- .cra_name = "xtea",
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = XTEA_BLOCK_SIZE,
- .cra_ctxsize = sizeof (struct xtea_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(xtea_alg.cra_list),
- .cra_u = { .cipher = {
- .cia_min_keysize = XTEA_KEY_SIZE,
- .cia_max_keysize = XTEA_KEY_SIZE,
- .cia_setkey = xtea_setkey,
- .cia_encrypt = xtea_encrypt,
- .cia_decrypt = xtea_decrypt } }
-};
-
-static int __init init(void)
-{
- int ret = 0;
-
- ret = crypto_register_alg(&tea_alg);
- if (ret < 0)
- goto out;
-
- ret = crypto_register_alg(&xtea_alg);
- if (ret < 0) {
- crypto_unregister_alg(&tea_alg);
- goto out;
- }
-
-out:
- return ret;
-}
-
-static void __exit fini(void)
-{
- crypto_unregister_alg(&tea_alg);
- crypto_unregister_alg(&xtea_alg);
-}
-
-MODULE_ALIAS("xtea");
-
-module_init(init);
-module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("TEA & XTEA Cryptographic Algorithms");
+++ /dev/null
-/*
- * sx8.c: Driver for Promise SATA SX8 looks-like-I2O hardware
- *
- * Copyright 2004 Red Hat, Inc.
- *
- * Author/maintainer: Jeff Garzik <jgarzik@pobox.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/blkdev.h>
-#include <linux/sched.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/interrupt.h>
-#include <linux/compiler.h>
-#include <linux/workqueue.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-#include <linux/time.h>
-#include <linux/hdreg.h>
-#include <asm/io.h>
-#include <asm/semaphore.h>
-#include <asm/uaccess.h>
-
-MODULE_AUTHOR("Jeff Garzik");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Promise SATA SX8 block driver");
-
-#if 0
-#define CARM_DEBUG
-#define CARM_VERBOSE_DEBUG
-#else
-#undef CARM_DEBUG
-#undef CARM_VERBOSE_DEBUG
-#endif
-#undef CARM_NDEBUG
-
-#define DRV_NAME "sx8"
-#define DRV_VERSION "0.8"
-#define PFX DRV_NAME ": "
-
-#define NEXT_RESP(idx) ((idx + 1) % RMSG_Q_LEN)
-
-/* 0xf is just arbitrary, non-zero noise; this is sorta like poisoning */
-#define TAG_ENCODE(tag) (((tag) << 16) | 0xf)
-#define TAG_DECODE(tag) (((tag) >> 16) & 0x1f)
-#define TAG_VALID(tag) ((((tag) & 0xf) == 0xf) && (TAG_DECODE(tag) < 32))
-
-/* note: prints function name for you */
-#ifdef CARM_DEBUG
-#define DPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
-#ifdef CARM_VERBOSE_DEBUG
-#define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
-#else
-#define VPRINTK(fmt, args...)
-#endif /* CARM_VERBOSE_DEBUG */
-#else
-#define DPRINTK(fmt, args...)
-#define VPRINTK(fmt, args...)
-#endif /* CARM_DEBUG */
-
-#ifdef CARM_NDEBUG
-#define assert(expr)
-#else
-#define assert(expr) \
- if(unlikely(!(expr))) { \
- printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
- #expr,__FILE__,__FUNCTION__,__LINE__); \
- }
-#endif
-
-/* defines only for the constants which don't work well as enums */
-struct carm_host;
-
-enum {
- /* adapter-wide limits */
- CARM_MAX_PORTS = 8,
- CARM_SHM_SIZE = (4096 << 7),
- CARM_MINORS_PER_MAJOR = 256 / CARM_MAX_PORTS,
- CARM_MAX_WAIT_Q = CARM_MAX_PORTS + 1,
-
- /* command message queue limits */
- CARM_MAX_REQ = 64, /* max command msgs per host */
- CARM_MAX_Q = 1, /* one command at a time */
- CARM_MSG_LOW_WATER = (CARM_MAX_REQ / 4), /* refill mark */
-
- /* S/G limits, host-wide and per-request */
- CARM_MAX_REQ_SG = 32, /* max s/g entries per request */
- CARM_SG_BOUNDARY = 0xffffUL, /* s/g segment boundary */
- CARM_MAX_HOST_SG = 600, /* max s/g entries per host */
- CARM_SG_LOW_WATER = (CARM_MAX_HOST_SG / 4), /* re-fill mark */
-
- /* hardware registers */
- CARM_IHQP = 0x1c,
- CARM_INT_STAT = 0x10, /* interrupt status */
- CARM_INT_MASK = 0x14, /* interrupt mask */
- CARM_HMUC = 0x18, /* host message unit control */
- RBUF_ADDR_LO = 0x20, /* response msg DMA buf low 32 bits */
- RBUF_ADDR_HI = 0x24, /* response msg DMA buf high 32 bits */
- RBUF_BYTE_SZ = 0x28,
- CARM_RESP_IDX = 0x2c,
- CARM_CMS0 = 0x30, /* command message size reg 0 */
- CARM_LMUC = 0x48,
- CARM_HMPHA = 0x6c,
- CARM_INITC = 0xb5,
-
- /* bits in CARM_INT_{STAT,MASK} */
- INT_RESERVED = 0xfffffff0,
- INT_WATCHDOG = (1 << 3), /* watchdog timer */
- INT_Q_OVERFLOW = (1 << 2), /* cmd msg q overflow */
- INT_Q_AVAILABLE = (1 << 1), /* cmd msg q has free space */
- INT_RESPONSE = (1 << 0), /* response msg available */
- INT_ACK_MASK = INT_WATCHDOG | INT_Q_OVERFLOW,
- INT_DEF_MASK = INT_RESERVED | INT_Q_OVERFLOW |
- INT_RESPONSE,
-
- /* command messages, and related register bits */
- CARM_HAVE_RESP = 0x01,
- CARM_MSG_READ = 1,
- CARM_MSG_WRITE = 2,
- CARM_MSG_VERIFY = 3,
- CARM_MSG_GET_CAPACITY = 4,
- CARM_MSG_FLUSH = 5,
- CARM_MSG_IOCTL = 6,
- CARM_MSG_ARRAY = 8,
- CARM_MSG_MISC = 9,
- CARM_CME = (1 << 2),
- CARM_RME = (1 << 1),
- CARM_WZBC = (1 << 0),
- CARM_RMI = (1 << 0),
- CARM_Q_FULL = (1 << 3),
- CARM_MSG_SIZE = 288,
- CARM_Q_LEN = 48,
-
- /* CARM_MSG_IOCTL messages */
- CARM_IOC_SCAN_CHAN = 5, /* scan channels for devices */
- CARM_IOC_GET_TCQ = 13, /* get tcq/ncq depth */
- CARM_IOC_SET_TCQ = 14, /* set tcq/ncq depth */
-
- IOC_SCAN_CHAN_NODEV = 0x1f,
- IOC_SCAN_CHAN_OFFSET = 0x40,
-
- /* CARM_MSG_ARRAY messages */
- CARM_ARRAY_INFO = 0,
-
- ARRAY_NO_EXIST = (1 << 31),
-
- /* response messages */
- RMSG_SZ = 8, /* sizeof(struct carm_response) */
- RMSG_Q_LEN = 48, /* resp. msg list length */
- RMSG_OK = 1, /* bit indicating msg was successful */
- /* length of entire resp. msg buffer */
- RBUF_LEN = RMSG_SZ * RMSG_Q_LEN,
-
- PDC_SHM_SIZE = (4096 << 7), /* length of entire h/w buffer */
-
- /* CARM_MSG_MISC messages */
- MISC_GET_FW_VER = 2,
- MISC_ALLOC_MEM = 3,
- MISC_SET_TIME = 5,
-
- /* MISC_GET_FW_VER feature bits */
- FW_VER_4PORT = (1 << 2), /* 1=4 ports, 0=8 ports */
- FW_VER_NON_RAID = (1 << 1), /* 1=non-RAID firmware, 0=RAID */
- FW_VER_ZCR = (1 << 0), /* zero channel RAID (whatever that is) */
-
- /* carm_host flags */
- FL_NON_RAID = FW_VER_NON_RAID,
- FL_4PORT = FW_VER_4PORT,
- FL_FW_VER_MASK = (FW_VER_NON_RAID | FW_VER_4PORT),
- FL_DAC = (1 << 16),
- FL_DYN_MAJOR = (1 << 17),
-};
-
-enum scatter_gather_types {
- SGT_32BIT = 0,
- SGT_64BIT = 1,
-};
-
-enum host_states {
- HST_INVALID, /* invalid state; never used */
- HST_ALLOC_BUF, /* setting up master SHM area */
- HST_ERROR, /* we never leave here */
- HST_PORT_SCAN, /* start dev scan */
- HST_DEV_SCAN_START, /* start per-device probe */
- HST_DEV_SCAN, /* continue per-device probe */
- HST_DEV_ACTIVATE, /* activate devices we found */
- HST_PROBE_FINISHED, /* probe is complete */
- HST_PROBE_START, /* initiate probe */
- HST_SYNC_TIME, /* tell firmware what time it is */
- HST_GET_FW_VER, /* get firmware version, adapter port cnt */
-};
-
-#ifdef CARM_DEBUG
-static const char *state_name[] = {
- "HST_INVALID",
- "HST_ALLOC_BUF",
- "HST_ERROR",
- "HST_PORT_SCAN",
- "HST_DEV_SCAN_START",
- "HST_DEV_SCAN",
- "HST_DEV_ACTIVATE",
- "HST_PROBE_FINISHED",
- "HST_PROBE_START",
- "HST_SYNC_TIME",
- "HST_GET_FW_VER",
-};
-#endif
-
-struct carm_port {
- unsigned int port_no;
- unsigned int n_queued;
- struct gendisk *disk;
- struct carm_host *host;
-
- /* attached device characteristics */
- u64 capacity;
- char name[41];
- u16 dev_geom_head;
- u16 dev_geom_sect;
- u16 dev_geom_cyl;
-};
-
-struct carm_request {
- unsigned int tag;
- int n_elem;
- unsigned int msg_type;
- unsigned int msg_subtype;
- unsigned int msg_bucket;
- struct request *rq;
- struct carm_port *port;
- struct scatterlist sg[CARM_MAX_REQ_SG];
-};
-
-struct carm_host {
- unsigned long flags;
- void *mmio;
- void *shm;
- dma_addr_t shm_dma;
-
- int major;
- int id;
- char name[32];
-
- spinlock_t lock;
- struct pci_dev *pdev;
- unsigned int state;
- u32 fw_ver;
-
- request_queue_t *oob_q;
- unsigned int n_oob;
-
- unsigned int hw_sg_used;
-
- unsigned int resp_idx;
-
- unsigned int wait_q_prod;
- unsigned int wait_q_cons;
- request_queue_t *wait_q[CARM_MAX_WAIT_Q];
-
- unsigned int n_msgs;
- u64 msg_alloc;
- struct carm_request req[CARM_MAX_REQ];
- void *msg_base;
- dma_addr_t msg_dma;
-
- int cur_scan_dev;
- unsigned long dev_active;
- unsigned long dev_present;
- struct carm_port port[CARM_MAX_PORTS];
-
- struct work_struct fsm_task;
-
- struct semaphore probe_sem;
-};
-
-struct carm_response {
- u32 ret_handle;
- u32 status;
-} __attribute__((packed));
-
-struct carm_msg_sg {
- u32 start;
- u32 len;
-} __attribute__((packed));
-
-struct carm_msg_rw {
- u8 type;
- u8 id;
- u8 sg_count;
- u8 sg_type;
- u32 handle;
- u32 lba;
- u16 lba_count;
- u16 lba_high;
- struct carm_msg_sg sg[32];
-} __attribute__((packed));
-
-struct carm_msg_allocbuf {
- u8 type;
- u8 subtype;
- u8 n_sg;
- u8 sg_type;
- u32 handle;
- u32 addr;
- u32 len;
- u32 evt_pool;
- u32 n_evt;
- u32 rbuf_pool;
- u32 n_rbuf;
- u32 msg_pool;
- u32 n_msg;
- struct carm_msg_sg sg[8];
-} __attribute__((packed));
-
-struct carm_msg_ioctl {
- u8 type;
- u8 subtype;
- u8 array_id;
- u8 reserved1;
- u32 handle;
- u32 data_addr;
- u32 reserved2;
-} __attribute__((packed));
-
-struct carm_msg_sync_time {
- u8 type;
- u8 subtype;
- u16 reserved1;
- u32 handle;
- u32 reserved2;
- u32 timestamp;
-} __attribute__((packed));
-
-struct carm_msg_get_fw_ver {
- u8 type;
- u8 subtype;
- u16 reserved1;
- u32 handle;
- u32 data_addr;
- u32 reserved2;
-} __attribute__((packed));
-
-struct carm_fw_ver {
- u32 version;
- u8 features;
- u8 reserved1;
- u16 reserved2;
-} __attribute__((packed));
-
-struct carm_array_info {
- u32 size;
-
- u16 size_hi;
- u16 stripe_size;
-
- u32 mode;
-
- u16 stripe_blk_sz;
- u16 reserved1;
-
- u16 cyl;
- u16 head;
-
- u16 sect;
- u8 array_id;
- u8 reserved2;
-
- char name[40];
-
- u32 array_status;
-
- /* device list continues beyond this point? */
-} __attribute__((packed));
-
-static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-static void carm_remove_one (struct pci_dev *pdev);
-static int carm_bdev_ioctl(struct inode *ino, struct file *fil,
- unsigned int cmd, unsigned long arg);
-
-static struct pci_device_id carm_pci_tbl[] = {
- { PCI_VENDOR_ID_PROMISE, 0x8000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
- { PCI_VENDOR_ID_PROMISE, 0x8002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
- { } /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, carm_pci_tbl);
-
-static struct pci_driver carm_driver = {
- .name = DRV_NAME,
- .id_table = carm_pci_tbl,
- .probe = carm_init_one,
- .remove = carm_remove_one,
-};
-
-static struct block_device_operations carm_bd_ops = {
- .owner = THIS_MODULE,
- .ioctl = carm_bdev_ioctl,
-};
-
-static unsigned int carm_host_id;
-static unsigned long carm_major_alloc;
-
-
-
-static int carm_bdev_ioctl(struct inode *ino, struct file *fil,
- unsigned int cmd, unsigned long arg)
-{
- void __user *usermem = (void __user *) arg;
- struct carm_port *port = ino->i_bdev->bd_disk->private_data;
- struct hd_geometry geom;
-
- switch (cmd) {
- case HDIO_GETGEO:
- if (!usermem)
- return -EINVAL;
-
- geom.heads = (u8) port->dev_geom_head;
- geom.sectors = (u8) port->dev_geom_sect;
- geom.cylinders = port->dev_geom_cyl;
- geom.start = get_start_sect(ino->i_bdev);
-
- if (copy_to_user(usermem, &geom, sizeof(geom)))
- return -EFAULT;
- return 0;
-
- default:
- break;
- }
-
- return -EOPNOTSUPP;
-}
-
-static const u32 msg_sizes[] = { 32, 64, 128, CARM_MSG_SIZE };
-
-static inline int carm_lookup_bucket(u32 msg_size)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(msg_sizes); i++)
- if (msg_size <= msg_sizes[i])
- return i;
-
- return -ENOENT;
-}
-
-static void carm_init_buckets(void *mmio)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(msg_sizes); i++)
- writel(msg_sizes[i], mmio + CARM_CMS0 + (4 * i));
-}
-
-static inline void *carm_ref_msg(struct carm_host *host,
- unsigned int msg_idx)
-{
- return host->msg_base + (msg_idx * CARM_MSG_SIZE);
-}
-
-static inline dma_addr_t carm_ref_msg_dma(struct carm_host *host,
- unsigned int msg_idx)
-{
- return host->msg_dma + (msg_idx * CARM_MSG_SIZE);
-}
-
-static int carm_send_msg(struct carm_host *host,
- struct carm_request *crq)
-{
- void *mmio = host->mmio;
- u32 msg = (u32) carm_ref_msg_dma(host, crq->tag);
- u32 cm_bucket = crq->msg_bucket;
- u32 tmp;
- int rc = 0;
-
- VPRINTK("ENTER\n");
-
- tmp = readl(mmio + CARM_HMUC);
- if (tmp & CARM_Q_FULL) {
-#if 0
- tmp = readl(mmio + CARM_INT_MASK);
- tmp |= INT_Q_AVAILABLE;
- writel(tmp, mmio + CARM_INT_MASK);
- readl(mmio + CARM_INT_MASK); /* flush */
-#endif
- DPRINTK("host msg queue full\n");
- rc = -EBUSY;
- } else {
- writel(msg | (cm_bucket << 1), mmio + CARM_IHQP);
- readl(mmio + CARM_IHQP); /* flush */
- }
-
- return rc;
-}
-
-static struct carm_request *carm_get_request(struct carm_host *host)
-{
- unsigned int i;
-
- /* obey global hardware limit on S/G entries */
- if (host->hw_sg_used >= (CARM_MAX_HOST_SG - CARM_MAX_REQ_SG))
- return NULL;
-
- for (i = 0; i < CARM_MAX_Q; i++)
- if ((host->msg_alloc & (1ULL << i)) == 0) {
- struct carm_request *crq = &host->req[i];
- crq->port = NULL;
- crq->n_elem = 0;
-
- host->msg_alloc |= (1ULL << i);
- host->n_msgs++;
-
- assert(host->n_msgs <= CARM_MAX_REQ);
- return crq;
- }
-
- DPRINTK("no request available, returning NULL\n");
- return NULL;
-}
-
-static int carm_put_request(struct carm_host *host, struct carm_request *crq)
-{
- assert(crq->tag < CARM_MAX_Q);
-
- if (unlikely((host->msg_alloc & (1ULL << crq->tag)) == 0))
- return -EINVAL; /* tried to clear a tag that was not active */
-
- assert(host->hw_sg_used >= crq->n_elem);
-
- host->msg_alloc &= ~(1ULL << crq->tag);
- host->hw_sg_used -= crq->n_elem;
- host->n_msgs--;
-
- return 0;
-}
-
-static struct carm_request *carm_get_special(struct carm_host *host)
-{
- unsigned long flags;
- struct carm_request *crq = NULL;
- struct request *rq;
- int tries = 5000;
-
- while (tries-- > 0) {
- spin_lock_irqsave(&host->lock, flags);
- crq = carm_get_request(host);
- spin_unlock_irqrestore(&host->lock, flags);
-
- if (crq)
- break;
- msleep(10);
- }
-
- if (!crq)
- return NULL;
-
- rq = blk_get_request(host->oob_q, WRITE /* bogus */, GFP_KERNEL);
- if (!rq) {
- spin_lock_irqsave(&host->lock, flags);
- carm_put_request(host, crq);
- spin_unlock_irqrestore(&host->lock, flags);
- return NULL;
- }
-
- crq->rq = rq;
- return crq;
-}
-
-static int carm_array_info (struct carm_host *host, unsigned int array_idx)
-{
- struct carm_msg_ioctl *ioc;
- unsigned int idx;
- u32 msg_data;
- dma_addr_t msg_dma;
- struct carm_request *crq;
- int rc;
-
- crq = carm_get_special(host);
- if (!crq) {
- rc = -ENOMEM;
- goto err_out;
- }
-
- idx = crq->tag;
-
- ioc = carm_ref_msg(host, idx);
- msg_dma = carm_ref_msg_dma(host, idx);
- msg_data = (u32) (msg_dma + sizeof(struct carm_array_info));
-
- crq->msg_type = CARM_MSG_ARRAY;
- crq->msg_subtype = CARM_ARRAY_INFO;
- rc = carm_lookup_bucket(sizeof(struct carm_msg_ioctl) +
- sizeof(struct carm_array_info));
- BUG_ON(rc < 0);
- crq->msg_bucket = (u32) rc;
-
- memset(ioc, 0, sizeof(*ioc));
- ioc->type = CARM_MSG_ARRAY;
- ioc->subtype = CARM_ARRAY_INFO;
- ioc->array_id = (u8) array_idx;
- ioc->handle = cpu_to_le32(TAG_ENCODE(idx));
- ioc->data_addr = cpu_to_le32(msg_data);
-
- spin_lock_irq(&host->lock);
- assert(host->state == HST_DEV_SCAN_START ||
- host->state == HST_DEV_SCAN);
- spin_unlock_irq(&host->lock);
-
- DPRINTK("blk_insert_request, tag == %u\n", idx);
- blk_insert_request(host->oob_q, crq->rq, 1, crq, 0);
-
- return 0;
-
-err_out:
- spin_lock_irq(&host->lock);
- host->state = HST_ERROR;
- spin_unlock_irq(&host->lock);
- return rc;
-}
-
-typedef unsigned int (*carm_sspc_t)(struct carm_host *, unsigned int, void *);
-
-static int carm_send_special (struct carm_host *host, carm_sspc_t func)
-{
- struct carm_request *crq;
- struct carm_msg_ioctl *ioc;
- void *mem;
- unsigned int idx, msg_size;
- int rc;
-
- crq = carm_get_special(host);
- if (!crq)
- return -ENOMEM;
-
- idx = crq->tag;
-
- mem = carm_ref_msg(host, idx);
-
- msg_size = func(host, idx, mem);
-
- ioc = mem;
- crq->msg_type = ioc->type;
- crq->msg_subtype = ioc->subtype;
- rc = carm_lookup_bucket(msg_size);
- BUG_ON(rc < 0);
- crq->msg_bucket = (u32) rc;
-
- DPRINTK("blk_insert_request, tag == %u\n", idx);
- blk_insert_request(host->oob_q, crq->rq, 1, crq, 0);
-
- return 0;
-}
-
-static unsigned int carm_fill_sync_time(struct carm_host *host,
- unsigned int idx, void *mem)
-{
- struct timeval tv;
- struct carm_msg_sync_time *st = mem;
-
- do_gettimeofday(&tv);
-
- memset(st, 0, sizeof(*st));
- st->type = CARM_MSG_MISC;
- st->subtype = MISC_SET_TIME;
- st->handle = cpu_to_le32(TAG_ENCODE(idx));
- st->timestamp = cpu_to_le32(tv.tv_sec);
-
- return sizeof(struct carm_msg_sync_time);
-}
-
-static unsigned int carm_fill_alloc_buf(struct carm_host *host,
- unsigned int idx, void *mem)
-{
- struct carm_msg_allocbuf *ab = mem;
-
- memset(ab, 0, sizeof(*ab));
- ab->type = CARM_MSG_MISC;
- ab->subtype = MISC_ALLOC_MEM;
- ab->handle = cpu_to_le32(TAG_ENCODE(idx));
- ab->n_sg = 1;
- ab->sg_type = SGT_32BIT;
- ab->addr = cpu_to_le32(host->shm_dma + (PDC_SHM_SIZE >> 1));
- ab->len = cpu_to_le32(PDC_SHM_SIZE >> 1);
- ab->evt_pool = cpu_to_le32(host->shm_dma + (16 * 1024));
- ab->n_evt = cpu_to_le32(1024);
- ab->rbuf_pool = cpu_to_le32(host->shm_dma);
- ab->n_rbuf = cpu_to_le32(RMSG_Q_LEN);
- ab->msg_pool = cpu_to_le32(host->shm_dma + RBUF_LEN);
- ab->n_msg = cpu_to_le32(CARM_Q_LEN);
- ab->sg[0].start = cpu_to_le32(host->shm_dma + (PDC_SHM_SIZE >> 1));
- ab->sg[0].len = cpu_to_le32(65536);
-
- return sizeof(struct carm_msg_allocbuf);
-}
-
-static unsigned int carm_fill_scan_channels(struct carm_host *host,
- unsigned int idx, void *mem)
-{
- struct carm_msg_ioctl *ioc = mem;
- u32 msg_data = (u32) (carm_ref_msg_dma(host, idx) +
- IOC_SCAN_CHAN_OFFSET);
-
- memset(ioc, 0, sizeof(*ioc));
- ioc->type = CARM_MSG_IOCTL;
- ioc->subtype = CARM_IOC_SCAN_CHAN;
- ioc->handle = cpu_to_le32(TAG_ENCODE(idx));
- ioc->data_addr = cpu_to_le32(msg_data);
-
- /* fill output data area with "no device" default values */
- mem += IOC_SCAN_CHAN_OFFSET;
- memset(mem, IOC_SCAN_CHAN_NODEV, CARM_MAX_PORTS);
-
- return IOC_SCAN_CHAN_OFFSET + CARM_MAX_PORTS;
-}
-
-static unsigned int carm_fill_get_fw_ver(struct carm_host *host,
- unsigned int idx, void *mem)
-{
- struct carm_msg_get_fw_ver *ioc = mem;
- u32 msg_data = (u32) (carm_ref_msg_dma(host, idx) + sizeof(*ioc));
-
- memset(ioc, 0, sizeof(*ioc));
- ioc->type = CARM_MSG_MISC;
- ioc->subtype = MISC_GET_FW_VER;
- ioc->handle = cpu_to_le32(TAG_ENCODE(idx));
- ioc->data_addr = cpu_to_le32(msg_data);
-
- return sizeof(struct carm_msg_get_fw_ver) +
- sizeof(struct carm_fw_ver);
-}
-
-static inline void carm_end_request_queued(struct carm_host *host,
- struct carm_request *crq,
- int uptodate)
-{
- struct request *req = crq->rq;
- int rc;
-
- rc = end_that_request_first(req, uptodate, req->hard_nr_sectors);
- assert(rc == 0);
-
- end_that_request_last(req);
-
- rc = carm_put_request(host, crq);
- assert(rc == 0);
-}
-
-static inline void carm_push_q (struct carm_host *host, request_queue_t *q)
-{
- unsigned int idx = host->wait_q_prod % CARM_MAX_WAIT_Q;
-
- blk_stop_queue(q);
- VPRINTK("STOPPED QUEUE %p\n", q);
-
- host->wait_q[idx] = q;
- host->wait_q_prod++;
- BUG_ON(host->wait_q_prod == host->wait_q_cons); /* overrun */
-}
-
-static inline request_queue_t *carm_pop_q(struct carm_host *host)
-{
- unsigned int idx;
-
- if (host->wait_q_prod == host->wait_q_cons)
- return NULL;
-
- idx = host->wait_q_cons % CARM_MAX_WAIT_Q;
- host->wait_q_cons++;
-
- return host->wait_q[idx];
-}
-
-static inline void carm_round_robin(struct carm_host *host)
-{
- request_queue_t *q = carm_pop_q(host);
- if (q) {
- blk_start_queue(q);
- VPRINTK("STARTED QUEUE %p\n", q);
- }
-}
-
-static inline void carm_end_rq(struct carm_host *host, struct carm_request *crq,
- int is_ok)
-{
- carm_end_request_queued(host, crq, is_ok);
- if (CARM_MAX_Q == 1)
- carm_round_robin(host);
- else if ((host->n_msgs <= CARM_MSG_LOW_WATER) &&
- (host->hw_sg_used <= CARM_SG_LOW_WATER)) {
- carm_round_robin(host);
- }
-}
-
-static void carm_oob_rq_fn(request_queue_t *q)
-{
- struct carm_host *host = q->queuedata;
- struct carm_request *crq;
- struct request *rq;
- int rc;
-
- while (1) {
- DPRINTK("get req\n");
- rq = elv_next_request(q);
- if (!rq)
- break;
-
- blkdev_dequeue_request(rq);
-
- crq = rq->special;
- assert(crq != NULL);
- assert(crq->rq == rq);
-
- crq->n_elem = 0;
-
- DPRINTK("send req\n");
- rc = carm_send_msg(host, crq);
- if (rc) {
- blk_requeue_request(q, rq);
- carm_push_q(host, q);
- return; /* call us again later, eventually */
- }
- }
-}
-
-static void carm_rq_fn(request_queue_t *q)
-{
- struct carm_port *port = q->queuedata;
- struct carm_host *host = port->host;
- struct carm_msg_rw *msg;
- struct carm_request *crq;
- struct request *rq;
- struct scatterlist *sg;
- int writing = 0, pci_dir, i, n_elem, rc;
- u32 tmp;
- unsigned int msg_size;
-
-queue_one_request:
- VPRINTK("get req\n");
- rq = elv_next_request(q);
- if (!rq)
- return;
-
- crq = carm_get_request(host);
- if (!crq) {
- carm_push_q(host, q);
- return; /* call us again later, eventually */
- }
- crq->rq = rq;
-
- blkdev_dequeue_request(rq);
-
- if (rq_data_dir(rq) == WRITE) {
- writing = 1;
- pci_dir = PCI_DMA_TODEVICE;
- } else {
- pci_dir = PCI_DMA_FROMDEVICE;
- }
-
- /* get scatterlist from block layer */
- sg = &crq->sg[0];
- n_elem = blk_rq_map_sg(q, rq, sg);
- if (n_elem <= 0) {
- carm_end_rq(host, crq, 0);
- return; /* request with no s/g entries? */
- }
-
- /* map scatterlist to PCI bus addresses */
- n_elem = pci_map_sg(host->pdev, sg, n_elem, pci_dir);
- if (n_elem <= 0) {
- carm_end_rq(host, crq, 0);
- return; /* request with no s/g entries? */
- }
- crq->n_elem = n_elem;
- crq->port = port;
- host->hw_sg_used += n_elem;
-
- /*
- * build read/write message
- */
-
- VPRINTK("build msg\n");
- msg = (struct carm_msg_rw *) carm_ref_msg(host, crq->tag);
-
- if (writing) {
- msg->type = CARM_MSG_WRITE;
- crq->msg_type = CARM_MSG_WRITE;
- } else {
- msg->type = CARM_MSG_READ;
- crq->msg_type = CARM_MSG_READ;
- }
-
- msg->id = port->port_no;
- msg->sg_count = n_elem;
- msg->sg_type = SGT_32BIT;
- msg->handle = cpu_to_le32(TAG_ENCODE(crq->tag));
- msg->lba = cpu_to_le32(rq->sector & 0xffffffff);
- tmp = (rq->sector >> 16) >> 16;
- msg->lba_high = cpu_to_le16( (u16) tmp );
- msg->lba_count = cpu_to_le16(rq->nr_sectors);
-
- msg_size = sizeof(struct carm_msg_rw) - sizeof(msg->sg);
- for (i = 0; i < n_elem; i++) {
- struct carm_msg_sg *carm_sg = &msg->sg[i];
- carm_sg->start = cpu_to_le32(sg_dma_address(&crq->sg[i]));
- carm_sg->len = cpu_to_le32(sg_dma_len(&crq->sg[i]));
- msg_size += sizeof(struct carm_msg_sg);
- }
-
- rc = carm_lookup_bucket(msg_size);
- BUG_ON(rc < 0);
- crq->msg_bucket = (u32) rc;
-
- /*
- * queue read/write message to hardware
- */
-
- VPRINTK("send msg, tag == %u\n", crq->tag);
- rc = carm_send_msg(host, crq);
- if (rc) {
- carm_put_request(host, crq);
- blk_requeue_request(q, rq);
- carm_push_q(host, q);
- return; /* call us again later, eventually */
- }
-
- goto queue_one_request;
-}
-
-static void carm_handle_array_info(struct carm_host *host,
- struct carm_request *crq, u8 *mem,
- int is_ok)
-{
- struct carm_port *port;
- u8 *msg_data = mem + sizeof(struct carm_array_info);
- struct carm_array_info *desc = (struct carm_array_info *) msg_data;
- u64 lo, hi;
- int cur_port;
- size_t slen;
-
- DPRINTK("ENTER\n");
-
- carm_end_rq(host, crq, is_ok);
-
- if (!is_ok)
- goto out;
- if (le32_to_cpu(desc->array_status) & ARRAY_NO_EXIST)
- goto out;
-
- cur_port = host->cur_scan_dev;
-
- /* should never occur */
- if ((cur_port < 0) || (cur_port >= CARM_MAX_PORTS)) {
- printk(KERN_ERR PFX "BUG: cur_scan_dev==%d, array_id==%d\n",
- cur_port, (int) desc->array_id);
- goto out;
- }
-
- port = &host->port[cur_port];
-
- lo = (u64) le32_to_cpu(desc->size);
- hi = (u64) le32_to_cpu(desc->size_hi);
-
- port->capacity = lo | (hi << 32);
- port->dev_geom_head = le16_to_cpu(desc->head);
- port->dev_geom_sect = le16_to_cpu(desc->sect);
- port->dev_geom_cyl = le16_to_cpu(desc->cyl);
-
- host->dev_active |= (1 << cur_port);
-
- strncpy(port->name, desc->name, sizeof(port->name));
- port->name[sizeof(port->name) - 1] = 0;
- slen = strlen(port->name);
- while (slen && (port->name[slen - 1] == ' ')) {
- port->name[slen - 1] = 0;
- slen--;
- }
-
- printk(KERN_INFO DRV_NAME "(%s): port %u device %Lu sectors\n",
- pci_name(host->pdev), port->port_no,
- (unsigned long long) port->capacity);
- printk(KERN_INFO DRV_NAME "(%s): port %u device \"%s\"\n",
- pci_name(host->pdev), port->port_no, port->name);
-
-out:
- assert(host->state == HST_DEV_SCAN);
- schedule_work(&host->fsm_task);
-}
-
-static void carm_handle_scan_chan(struct carm_host *host,
- struct carm_request *crq, u8 *mem,
- int is_ok)
-{
- u8 *msg_data = mem + IOC_SCAN_CHAN_OFFSET;
- unsigned int i, dev_count = 0;
- int new_state = HST_DEV_SCAN_START;
-
- DPRINTK("ENTER\n");
-
- carm_end_rq(host, crq, is_ok);
-
- if (!is_ok) {
- new_state = HST_ERROR;
- goto out;
- }
-
- /* TODO: scan and support non-disk devices */
- for (i = 0; i < 8; i++)
- if (msg_data[i] == 0) { /* direct-access device (disk) */
- host->dev_present |= (1 << i);
- dev_count++;
- }
-
- printk(KERN_INFO DRV_NAME "(%s): found %u interesting devices\n",
- pci_name(host->pdev), dev_count);
-
-out:
- assert(host->state == HST_PORT_SCAN);
- host->state = new_state;
- schedule_work(&host->fsm_task);
-}
-
-static void carm_handle_generic(struct carm_host *host,
- struct carm_request *crq, int is_ok,
- int cur_state, int next_state)
-{
- DPRINTK("ENTER\n");
-
- carm_end_rq(host, crq, is_ok);
-
- assert(host->state == cur_state);
- if (is_ok)
- host->state = next_state;
- else
- host->state = HST_ERROR;
- schedule_work(&host->fsm_task);
-}
-
-static inline void carm_handle_rw(struct carm_host *host,
- struct carm_request *crq, int is_ok)
-{
- int pci_dir;
-
- VPRINTK("ENTER\n");
-
- if (rq_data_dir(crq->rq) == WRITE)
- pci_dir = PCI_DMA_TODEVICE;
- else
- pci_dir = PCI_DMA_FROMDEVICE;
-
- pci_unmap_sg(host->pdev, &crq->sg[0], crq->n_elem, pci_dir);
-
- carm_end_rq(host, crq, is_ok);
-}
-
-static inline void carm_handle_resp(struct carm_host *host,
- u32 ret_handle_le, u32 status)
-{
- u32 handle = le32_to_cpu(ret_handle_le);
- unsigned int msg_idx;
- struct carm_request *crq;
- int is_ok = (status == RMSG_OK);
- u8 *mem;
-
- VPRINTK("ENTER, handle == 0x%x\n", handle);
-
- if (unlikely(!TAG_VALID(handle))) {
- printk(KERN_ERR DRV_NAME "(%s): BUG: invalid tag 0x%x\n",
- pci_name(host->pdev), handle);
- return;
- }
-
- msg_idx = TAG_DECODE(handle);
- VPRINTK("tag == %u\n", msg_idx);
-
- crq = &host->req[msg_idx];
-
- /* fast path */
- if (likely(crq->msg_type == CARM_MSG_READ ||
- crq->msg_type == CARM_MSG_WRITE)) {
- carm_handle_rw(host, crq, is_ok);
- return;
- }
-
- mem = carm_ref_msg(host, msg_idx);
-
- switch (crq->msg_type) {
- case CARM_MSG_IOCTL: {
- switch (crq->msg_subtype) {
- case CARM_IOC_SCAN_CHAN:
- carm_handle_scan_chan(host, crq, mem, is_ok);
- break;
- default:
- /* unknown / invalid response */
- goto err_out;
- }
- break;
- }
-
- case CARM_MSG_MISC: {
- switch (crq->msg_subtype) {
- case MISC_ALLOC_MEM:
- carm_handle_generic(host, crq, is_ok,
- HST_ALLOC_BUF, HST_SYNC_TIME);
- break;
- case MISC_SET_TIME:
- carm_handle_generic(host, crq, is_ok,
- HST_SYNC_TIME, HST_GET_FW_VER);
- break;
- case MISC_GET_FW_VER: {
- struct carm_fw_ver *ver = (struct carm_fw_ver *)
- mem + sizeof(struct carm_msg_get_fw_ver);
- if (is_ok) {
- host->fw_ver = le32_to_cpu(ver->version);
- host->flags |= (ver->features & FL_FW_VER_MASK);
- }
- carm_handle_generic(host, crq, is_ok,
- HST_GET_FW_VER, HST_PORT_SCAN);
- break;
- }
- default:
- /* unknown / invalid response */
- goto err_out;
- }
- break;
- }
-
- case CARM_MSG_ARRAY: {
- switch (crq->msg_subtype) {
- case CARM_ARRAY_INFO:
- carm_handle_array_info(host, crq, mem, is_ok);
- break;
- default:
- /* unknown / invalid response */
- goto err_out;
- }
- break;
- }
-
- default:
- /* unknown / invalid response */
- goto err_out;
- }
-
- return;
-
-err_out:
- printk(KERN_WARNING DRV_NAME "(%s): BUG: unhandled message type %d/%d\n",
- pci_name(host->pdev), crq->msg_type, crq->msg_subtype);
- carm_end_rq(host, crq, 0);
-}
-
-static inline void carm_handle_responses(struct carm_host *host)
-{
- void *mmio = host->mmio;
- struct carm_response *resp = (struct carm_response *) host->shm;
- unsigned int work = 0;
- unsigned int idx = host->resp_idx % RMSG_Q_LEN;
-
- while (1) {
- u32 status = le32_to_cpu(resp[idx].status);
-
- if (status == 0xffffffff) {
- VPRINTK("ending response on index %u\n", idx);
- writel(idx << 3, mmio + CARM_RESP_IDX);
- break;
- }
-
- /* response to a message we sent */
- else if ((status & (1 << 31)) == 0) {
- VPRINTK("handling msg response on index %u\n", idx);
- carm_handle_resp(host, resp[idx].ret_handle, status);
- resp[idx].status = 0xffffffff;
- }
-
- /* asynchronous events the hardware throws our way */
- else if ((status & 0xff000000) == (1 << 31)) {
- u8 *evt_type_ptr = (u8 *) &resp[idx];
- u8 evt_type = *evt_type_ptr;
- printk(KERN_WARNING DRV_NAME "(%s): unhandled event type %d\n",
- pci_name(host->pdev), (int) evt_type);
- resp[idx].status = 0xffffffff;
- }
-
- idx = NEXT_RESP(idx);
- work++;
- }
-
- VPRINTK("EXIT, work==%u\n", work);
- host->resp_idx += work;
-}
-
-static irqreturn_t carm_interrupt(int irq, void *__host, struct pt_regs *regs)
-{
- struct carm_host *host = __host;
- void *mmio;
- u32 mask;
- int handled = 0;
- unsigned long flags;
-
- if (!host) {
- VPRINTK("no host\n");
- return IRQ_NONE;
- }
-
- spin_lock_irqsave(&host->lock, flags);
-
- mmio = host->mmio;
-
- /* reading should also clear interrupts */
- mask = readl(mmio + CARM_INT_STAT);
-
- if (mask == 0 || mask == 0xffffffff) {
- VPRINTK("no work, mask == 0x%x\n", mask);
- goto out;
- }
-
- if (mask & INT_ACK_MASK)
- writel(mask, mmio + CARM_INT_STAT);
-
- if (unlikely(host->state == HST_INVALID)) {
- VPRINTK("not initialized yet, mask = 0x%x\n", mask);
- goto out;
- }
-
- if (mask & CARM_HAVE_RESP) {
- handled = 1;
- carm_handle_responses(host);
- }
-
-out:
- spin_unlock_irqrestore(&host->lock, flags);
- VPRINTK("EXIT\n");
- return IRQ_RETVAL(handled);
-}
-
-static void carm_fsm_task (void *_data)
-{
- struct carm_host *host = _data;
- unsigned long flags;
- unsigned int state;
- int rc, i, next_dev;
- int reschedule = 0;
- int new_state = HST_INVALID;
-
- spin_lock_irqsave(&host->lock, flags);
- state = host->state;
- spin_unlock_irqrestore(&host->lock, flags);
-
- DPRINTK("ENTER, state == %s\n", state_name[state]);
-
- switch (state) {
- case HST_PROBE_START:
- new_state = HST_ALLOC_BUF;
- reschedule = 1;
- break;
-
- case HST_ALLOC_BUF:
- rc = carm_send_special(host, carm_fill_alloc_buf);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- break;
-
- case HST_SYNC_TIME:
- rc = carm_send_special(host, carm_fill_sync_time);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- break;
-
- case HST_GET_FW_VER:
- rc = carm_send_special(host, carm_fill_get_fw_ver);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- break;
-
- case HST_PORT_SCAN:
- rc = carm_send_special(host, carm_fill_scan_channels);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- break;
-
- case HST_DEV_SCAN_START:
- host->cur_scan_dev = -1;
- new_state = HST_DEV_SCAN;
- reschedule = 1;
- break;
-
- case HST_DEV_SCAN:
- next_dev = -1;
- for (i = host->cur_scan_dev + 1; i < CARM_MAX_PORTS; i++)
- if (host->dev_present & (1 << i)) {
- next_dev = i;
- break;
- }
-
- if (next_dev >= 0) {
- host->cur_scan_dev = next_dev;
- rc = carm_array_info(host, next_dev);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- } else {
- new_state = HST_DEV_ACTIVATE;
- reschedule = 1;
- }
- break;
-
- case HST_DEV_ACTIVATE: {
- int activated = 0;
- for (i = 0; i < CARM_MAX_PORTS; i++)
- if (host->dev_active & (1 << i)) {
- struct carm_port *port = &host->port[i];
- struct gendisk *disk = port->disk;
-
- set_capacity(disk, port->capacity);
- add_disk(disk);
- activated++;
- }
-
- printk(KERN_INFO DRV_NAME "(%s): %d ports activated\n",
- pci_name(host->pdev), activated);
-
- new_state = HST_PROBE_FINISHED;
- reschedule = 1;
- break;
- }
-
- case HST_PROBE_FINISHED:
- up(&host->probe_sem);
- break;
-
- case HST_ERROR:
- /* FIXME: TODO */
- break;
-
- default:
- /* should never occur */
- printk(KERN_ERR PFX "BUG: unknown state %d\n", state);
- assert(0);
- break;
- }
-
- if (new_state != HST_INVALID) {
- spin_lock_irqsave(&host->lock, flags);
- host->state = new_state;
- spin_unlock_irqrestore(&host->lock, flags);
- }
- if (reschedule)
- schedule_work(&host->fsm_task);
-}
-
-static int carm_init_wait(void *mmio, u32 bits, unsigned int test_bit)
-{
- unsigned int i;
-
- for (i = 0; i < 50000; i++) {
- u32 tmp = readl(mmio + CARM_LMUC);
- udelay(100);
-
- if (test_bit) {
- if ((tmp & bits) == bits)
- return 0;
- } else {
- if ((tmp & bits) == 0)
- return 0;
- }
-
- cond_resched();
- }
-
- printk(KERN_ERR PFX "carm_init_wait timeout, bits == 0x%x, test_bit == %s\n",
- bits, test_bit ? "yes" : "no");
- return -EBUSY;
-}
-
-static void carm_init_responses(struct carm_host *host)
-{
- void *mmio = host->mmio;
- unsigned int i;
- struct carm_response *resp = (struct carm_response *) host->shm;
-
- for (i = 0; i < RMSG_Q_LEN; i++)
- resp[i].status = 0xffffffff;
-
- writel(0, mmio + CARM_RESP_IDX);
-}
-
-static int carm_init_host(struct carm_host *host)
-{
- void *mmio = host->mmio;
- u32 tmp;
- u8 tmp8;
- int rc;
-
- DPRINTK("ENTER\n");
-
- writel(0, mmio + CARM_INT_MASK);
-
- tmp8 = readb(mmio + CARM_INITC);
- if (tmp8 & 0x01) {
- tmp8 &= ~0x01;
- writeb(tmp8, CARM_INITC);
- readb(mmio + CARM_INITC); /* flush */
-
- DPRINTK("snooze...\n");
- msleep(5000);
- }
-
- tmp = readl(mmio + CARM_HMUC);
- if (tmp & CARM_CME) {
- DPRINTK("CME bit present, waiting\n");
- rc = carm_init_wait(mmio, CARM_CME, 1);
- if (rc) {
- DPRINTK("EXIT, carm_init_wait 1 failed\n");
- return rc;
- }
- }
- if (tmp & CARM_RME) {
- DPRINTK("RME bit present, waiting\n");
- rc = carm_init_wait(mmio, CARM_RME, 1);
- if (rc) {
- DPRINTK("EXIT, carm_init_wait 2 failed\n");
- return rc;
- }
- }
-
- tmp &= ~(CARM_RME | CARM_CME);
- writel(tmp, mmio + CARM_HMUC);
- readl(mmio + CARM_HMUC); /* flush */
-
- rc = carm_init_wait(mmio, CARM_RME | CARM_CME, 0);
- if (rc) {
- DPRINTK("EXIT, carm_init_wait 3 failed\n");
- return rc;
- }
-
- carm_init_buckets(mmio);
-
- writel(host->shm_dma & 0xffffffff, mmio + RBUF_ADDR_LO);
- writel((host->shm_dma >> 16) >> 16, mmio + RBUF_ADDR_HI);
- writel(RBUF_LEN, mmio + RBUF_BYTE_SZ);
-
- tmp = readl(mmio + CARM_HMUC);
- tmp |= (CARM_RME | CARM_CME | CARM_WZBC);
- writel(tmp, mmio + CARM_HMUC);
- readl(mmio + CARM_HMUC); /* flush */
-
- rc = carm_init_wait(mmio, CARM_RME | CARM_CME, 1);
- if (rc) {
- DPRINTK("EXIT, carm_init_wait 4 failed\n");
- return rc;
- }
-
- writel(0, mmio + CARM_HMPHA);
- writel(INT_DEF_MASK, mmio + CARM_INT_MASK);
-
- carm_init_responses(host);
-
- /* start initialization, probing state machine */
- spin_lock_irq(&host->lock);
- assert(host->state == HST_INVALID);
- host->state = HST_PROBE_START;
- spin_unlock_irq(&host->lock);
- schedule_work(&host->fsm_task);
-
- DPRINTK("EXIT\n");
- return 0;
-}
-
-static int carm_init_disks(struct carm_host *host)
-{
- unsigned int i;
- int rc = 0;
-
- for (i = 0; i < CARM_MAX_PORTS; i++) {
- struct gendisk *disk;
- request_queue_t *q;
- struct carm_port *port;
-
- port = &host->port[i];
- port->host = host;
- port->port_no = i;
-
- disk = alloc_disk(CARM_MINORS_PER_MAJOR);
- if (!disk) {
- rc = -ENOMEM;
- break;
- }
-
- port->disk = disk;
- sprintf(disk->disk_name, DRV_NAME "%u_%u", host->id, i);
- sprintf(disk->devfs_name, DRV_NAME "/%u_%u", host->id, i);
- disk->major = host->major;
- disk->first_minor = i * CARM_MINORS_PER_MAJOR;
- disk->fops = &carm_bd_ops;
- disk->private_data = port;
-
- q = blk_init_queue(carm_rq_fn, &host->lock);
- if (!q) {
- rc = -ENOMEM;
- break;
- }
- disk->queue = q;
- blk_queue_max_hw_segments(q, CARM_MAX_REQ_SG);
- blk_queue_max_phys_segments(q, CARM_MAX_REQ_SG);
- blk_queue_segment_boundary(q, CARM_SG_BOUNDARY);
-
- q->queuedata = port;
- }
-
- return rc;
-}
-
-static void carm_free_disks(struct carm_host *host)
-{
- unsigned int i;
-
- for (i = 0; i < CARM_MAX_PORTS; i++) {
- struct gendisk *disk = host->port[i].disk;
- if (disk) {
- request_queue_t *q = disk->queue;
-
- if (disk->flags & GENHD_FL_UP)
- del_gendisk(disk);
- if (q)
- blk_cleanup_queue(q);
- put_disk(disk);
- }
- }
-}
-
-static int carm_init_shm(struct carm_host *host)
-{
- host->shm = pci_alloc_consistent(host->pdev, CARM_SHM_SIZE,
- &host->shm_dma);
- if (!host->shm)
- return -ENOMEM;
-
- host->msg_base = host->shm + RBUF_LEN;
- host->msg_dma = host->shm_dma + RBUF_LEN;
-
- memset(host->shm, 0xff, RBUF_LEN);
- memset(host->msg_base, 0, PDC_SHM_SIZE - RBUF_LEN);
-
- return 0;
-}
-
-static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- static unsigned int printed_version;
- struct carm_host *host;
- unsigned int pci_dac;
- int rc;
- request_queue_t *q;
- unsigned int i;
-
- if (!printed_version++)
- printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
-
- rc = pci_enable_device(pdev);
- if (rc)
- return rc;
-
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc)
- goto err_out;
-
-#if IF_64BIT_DMA_IS_POSSIBLE /* grrrr... */
- rc = pci_set_dma_mask(pdev, 0xffffffffffffffffULL);
- if (!rc) {
- rc = pci_set_consistent_dma_mask(pdev, 0xffffffffffffffffULL);
- if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): consistent DMA mask failure\n",
- pci_name(pdev));
- goto err_out_regions;
- }
- pci_dac = 1;
- } else {
-#endif
- rc = pci_set_dma_mask(pdev, 0xffffffffULL);
- if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): DMA mask failure\n",
- pci_name(pdev));
- goto err_out_regions;
- }
- pci_dac = 0;
-#if IF_64BIT_DMA_IS_POSSIBLE /* grrrr... */
- }
-#endif
-
- host = kmalloc(sizeof(*host), GFP_KERNEL);
- if (!host) {
- printk(KERN_ERR DRV_NAME "(%s): memory alloc failure\n",
- pci_name(pdev));
- rc = -ENOMEM;
- goto err_out_regions;
- }
-
- memset(host, 0, sizeof(*host));
- host->pdev = pdev;
- host->flags = pci_dac ? FL_DAC : 0;
- spin_lock_init(&host->lock);
- INIT_WORK(&host->fsm_task, carm_fsm_task, host);
- init_MUTEX_LOCKED(&host->probe_sem);
-
- for (i = 0; i < ARRAY_SIZE(host->req); i++)
- host->req[i].tag = i;
-
- host->mmio = ioremap(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
- if (!host->mmio) {
- printk(KERN_ERR DRV_NAME "(%s): MMIO alloc failure\n",
- pci_name(pdev));
- rc = -ENOMEM;
- goto err_out_kfree;
- }
-
- rc = carm_init_shm(host);
- if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): DMA SHM alloc failure\n",
- pci_name(pdev));
- goto err_out_iounmap;
- }
-
- q = blk_init_queue(carm_oob_rq_fn, &host->lock);
- if (!q) {
- printk(KERN_ERR DRV_NAME "(%s): OOB queue alloc failure\n",
- pci_name(pdev));
- rc = -ENOMEM;
- goto err_out_pci_free;
- }
- host->oob_q = q;
- q->queuedata = host;
-
- /*
- * Figure out which major to use: 160, 161, or dynamic
- */
- if (!test_and_set_bit(0, &carm_major_alloc))
- host->major = 160;
- else if (!test_and_set_bit(1, &carm_major_alloc))
- host->major = 161;
- else
- host->flags |= FL_DYN_MAJOR;
-
- host->id = carm_host_id;
- sprintf(host->name, DRV_NAME "%d", carm_host_id);
-
- rc = register_blkdev(host->major, host->name);
- if (rc < 0)
- goto err_out_free_majors;
- if (host->flags & FL_DYN_MAJOR)
- host->major = rc;
-
- devfs_mk_dir(DRV_NAME);
-
- rc = carm_init_disks(host);
- if (rc)
- goto err_out_blkdev_disks;
-
- pci_set_master(pdev);
-
- rc = request_irq(pdev->irq, carm_interrupt, SA_SHIRQ, DRV_NAME, host);
- if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): irq alloc failure\n",
- pci_name(pdev));
- goto err_out_blkdev_disks;
- }
-
- rc = carm_init_host(host);
- if (rc)
- goto err_out_free_irq;
-
- DPRINTK("waiting for probe_sem\n");
- down(&host->probe_sem);
-
- printk(KERN_INFO "%s: pci %s, ports %d, io %lx, irq %u, major %d\n",
- host->name, pci_name(pdev), (int) CARM_MAX_PORTS,
- pci_resource_start(pdev, 0), pdev->irq, host->major);
-
- carm_host_id++;
- pci_set_drvdata(pdev, host);
- return 0;
-
-err_out_free_irq:
- free_irq(pdev->irq, host);
-err_out_blkdev_disks:
- carm_free_disks(host);
- unregister_blkdev(host->major, host->name);
-err_out_free_majors:
- if (host->major == 160)
- clear_bit(0, &carm_major_alloc);
- else if (host->major == 161)
- clear_bit(1, &carm_major_alloc);
- blk_cleanup_queue(host->oob_q);
-err_out_pci_free:
- pci_free_consistent(pdev, CARM_SHM_SIZE, host->shm, host->shm_dma);
-err_out_iounmap:
- iounmap(host->mmio);
-err_out_kfree:
- kfree(host);
-err_out_regions:
- pci_release_regions(pdev);
-err_out:
- pci_disable_device(pdev);
- return rc;
-}
-
-static void carm_remove_one (struct pci_dev *pdev)
-{
- struct carm_host *host = pci_get_drvdata(pdev);
-
- if (!host) {
- printk(KERN_ERR PFX "BUG: no host data for PCI(%s)\n",
- pci_name(pdev));
- return;
- }
-
- free_irq(pdev->irq, host);
- carm_free_disks(host);
- devfs_remove(DRV_NAME);
- unregister_blkdev(host->major, host->name);
- if (host->major == 160)
- clear_bit(0, &carm_major_alloc);
- else if (host->major == 161)
- clear_bit(1, &carm_major_alloc);
- blk_cleanup_queue(host->oob_q);
- pci_free_consistent(pdev, CARM_SHM_SIZE, host->shm, host->shm_dma);
- iounmap(host->mmio);
- kfree(host);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
-}
-
-static int __init carm_init(void)
-{
- return pci_module_init(&carm_driver);
-}
-
-static void __exit carm_exit(void)
-{
- pci_unregister_driver(&carm_driver);
-}
-
-module_init(carm_init);
-module_exit(carm_exit);
-
-
+++ /dev/null
-/*
- * DS1286 Real Time Clock interface for Linux
- *
- * Copyright (C) 1998, 1999, 2000 Ralf Baechle
- *
- * Based on code written by Paul Gortmaker.
- *
- * This driver allows use of the real time clock (built into nearly all
- * computers) from user space. It exports the /dev/rtc interface supporting
- * various ioctl() and also the /proc/rtc pseudo-file for status
- * information.
- *
- * The ioctls can be used to set the interrupt behaviour and generation rate
- * from the RTC via IRQ 8. Then the /dev/rtc interface can be used to make
- * use of these timer interrupts, be they interval or alarm based.
- *
- * The /dev/rtc interface will block on reads until an interrupt has been
- * received. If a RTC interrupt has already happened, it will output an
- * unsigned long and then block. The output value contains the interrupt
- * status in the low byte and the number of interrupts since the last read
- * in the remaining high bytes. The /dev/rtc interface can also be used with
- * the select(2) call.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#include <linux/ds1286.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/rtc.h>
-#include <linux/spinlock.h>
-#include <linux/bcd.h>
-#include <linux/proc_fs.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#define DS1286_VERSION "1.0"
-
-/*
- * We sponge a minor off of the misc major. No need slurping
- * up another valuable major dev number for this. If you add
- * an ioctl, make sure you don't conflict with SPARC's RTC
- * ioctls.
- */
-
-static DECLARE_WAIT_QUEUE_HEAD(ds1286_wait);
-
-static ssize_t ds1286_read(struct file *file, char *buf,
- size_t count, loff_t *ppos);
-
-static int ds1286_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-
-static unsigned int ds1286_poll(struct file *file, poll_table *wait);
-
-static void ds1286_get_alm_time (struct rtc_time *alm_tm);
-static void ds1286_get_time(struct rtc_time *rtc_tm);
-static int ds1286_set_time(struct rtc_time *rtc_tm);
-
-static inline unsigned char ds1286_is_updating(void);
-
-static spinlock_t ds1286_lock = SPIN_LOCK_UNLOCKED;
-
-static int ds1286_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-
-/*
- * Bits in rtc_status. (7 bits of room for future expansion)
- */
-
-#define RTC_IS_OPEN 0x01 /* means /dev/rtc is in use */
-#define RTC_TIMER_ON 0x02 /* missed irq timer active */
-
-static unsigned char ds1286_status; /* bitmapped status byte. */
-
-static unsigned char days_in_mo[] = {
- 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
-};
-
-/*
- * Now all the various file operations that we export.
- */
-
-static ssize_t ds1286_read(struct file *file, char *buf,
- size_t count, loff_t *ppos)
-{
- return -EIO;
-}
-
-static int ds1286_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct rtc_time wtime;
-
- switch (cmd) {
- case RTC_AIE_OFF: /* Mask alarm int. enab. bit */
- {
- unsigned int flags;
- unsigned char val;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- spin_lock_irqsave(&ds1286_lock, flags);
- val = rtc_read(RTC_CMD);
- val |= RTC_TDM;
- rtc_write(val, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
- }
- case RTC_AIE_ON: /* Allow alarm interrupts. */
- {
- unsigned int flags;
- unsigned char val;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- spin_lock_irqsave(&ds1286_lock, flags);
- val = rtc_read(RTC_CMD);
- val &= ~RTC_TDM;
- rtc_write(val, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
- }
- case RTC_WIE_OFF: /* Mask watchdog int. enab. bit */
- {
- unsigned int flags;
- unsigned char val;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- spin_lock_irqsave(&ds1286_lock, flags);
- val = rtc_read(RTC_CMD);
- val |= RTC_WAM;
- rtc_write(val, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
- }
- case RTC_WIE_ON: /* Allow watchdog interrupts. */
- {
- unsigned int flags;
- unsigned char val;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- spin_lock_irqsave(&ds1286_lock, flags);
- val = rtc_read(RTC_CMD);
- val &= ~RTC_WAM;
- rtc_write(val, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
- }
- case RTC_ALM_READ: /* Read the present alarm time */
- {
- /*
- * This returns a struct rtc_time. Reading >= 0xc0
- * means "don't care" or "match all". Only the tm_hour,
- * tm_min, and tm_sec values are filled in.
- */
-
- memset(&wtime, 0, sizeof(wtime));
- ds1286_get_alm_time(&wtime);
- break;
- }
- case RTC_ALM_SET: /* Store a time into the alarm */
- {
- /*
- * This expects a struct rtc_time. Writing 0xff means
- * "don't care" or "match all". Only the tm_hour,
- * tm_min and tm_sec are used.
- */
- unsigned char hrs, min, sec;
- struct rtc_time alm_tm;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- if (copy_from_user(&alm_tm, (struct rtc_time*)arg,
- sizeof(struct rtc_time)))
- return -EFAULT;
-
- hrs = alm_tm.tm_hour;
- min = alm_tm.tm_min;
-
- if (hrs >= 24)
- hrs = 0xff;
-
- if (min >= 60)
- min = 0xff;
-
- BIN_TO_BCD(sec);
- BIN_TO_BCD(min);
- BIN_TO_BCD(hrs);
-
- spin_lock(&ds1286_lock);
- rtc_write(hrs, RTC_HOURS_ALARM);
- rtc_write(min, RTC_MINUTES_ALARM);
- spin_unlock(&ds1286_lock);
-
- return 0;
- }
- case RTC_RD_TIME: /* Read the time/date from RTC */
- {
- memset(&wtime, 0, sizeof(wtime));
- ds1286_get_time(&wtime);
- break;
- }
- case RTC_SET_TIME: /* Set the RTC */
- {
- struct rtc_time rtc_tm;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- if (copy_from_user(&rtc_tm, (struct rtc_time*)arg,
- sizeof(struct rtc_time)))
- return -EFAULT;
-
- return ds1286_set_time(&rtc_tm);
- }
- default:
- return -EINVAL;
- }
- return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
-}
-
-/*
- * We enforce only one user at a time here with the open/close.
- * Also clear the previous interrupt data on an open, and clean
- * up things on a close.
- */
-
-static int ds1286_open(struct inode *inode, struct file *file)
-{
- spin_lock_irq(&ds1286_lock);
-
- if (ds1286_status & RTC_IS_OPEN)
- goto out_busy;
-
- ds1286_status |= RTC_IS_OPEN;
-
- spin_unlock_irq(&ds1286_lock);
- return 0;
-
-out_busy:
- spin_lock_irq(&ds1286_lock);
- return -EBUSY;
-}
-
-static int ds1286_release(struct inode *inode, struct file *file)
-{
- ds1286_status &= ~RTC_IS_OPEN;
-
- return 0;
-}
-
-static unsigned int ds1286_poll(struct file *file, poll_table *wait)
-{
- poll_wait(file, &ds1286_wait, wait);
-
- return 0;
-}
-
-/*
- * The various file operations we support.
- */
-
-static struct file_operations ds1286_fops = {
- .llseek = no_llseek,
- .read = ds1286_read,
- .poll = ds1286_poll,
- .ioctl = ds1286_ioctl,
- .open = ds1286_open,
- .release = ds1286_release,
-};
-
-static struct miscdevice ds1286_dev=
-{
- .minor = RTC_MINOR,
- .name = "rtc",
- .fops = &ds1286_fops,
-};
-
-static int __init ds1286_init(void)
-{
- int err;
-
- printk(KERN_INFO "DS1286 Real Time Clock Driver v%s\n", DS1286_VERSION);
-
- err = misc_register(&ds1286_dev);
- if (err)
- goto out;
-
- if (!create_proc_read_entry("driver/rtc", 0, 0, ds1286_read_proc, NULL)) {
- err = -ENOMEM;
-
- goto out_deregister;
- }
-
- return 0;
-
-out_deregister:
- misc_deregister(&ds1286_dev);
-
-out:
- return err;
-}
-
-static void __exit ds1286_exit(void)
-{
- remove_proc_entry("driver/rtc", NULL);
- misc_deregister(&ds1286_dev);
-}
-
-static char *days[] = {
- "***", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
-};
-
-/*
- * Info exported via "/proc/rtc".
- */
-static int ds1286_proc_output(char *buf)
-{
- char *p, *s;
- struct rtc_time tm;
- unsigned char hundredth, month, cmd, amode;
-
- p = buf;
-
- ds1286_get_time(&tm);
- hundredth = rtc_read(RTC_HUNDREDTH_SECOND);
- BCD_TO_BIN(hundredth);
-
- p += sprintf(p,
- "rtc_time\t: %02d:%02d:%02d.%02d\n"
- "rtc_date\t: %04d-%02d-%02d\n",
- tm.tm_hour, tm.tm_min, tm.tm_sec, hundredth,
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
-
- /*
- * We implicitly assume 24hr mode here. Alarm values >= 0xc0 will
- * match any value for that particular field. Values that are
- * greater than a valid time, but less than 0xc0 shouldn't appear.
- */
- ds1286_get_alm_time(&tm);
- p += sprintf(p, "alarm\t\t: %s ", days[tm.tm_wday]);
- if (tm.tm_hour <= 24)
- p += sprintf(p, "%02d:", tm.tm_hour);
- else
- p += sprintf(p, "**:");
-
- if (tm.tm_min <= 59)
- p += sprintf(p, "%02d\n", tm.tm_min);
- else
- p += sprintf(p, "**\n");
-
- month = rtc_read(RTC_MONTH);
- p += sprintf(p,
- "oscillator\t: %s\n"
- "square_wave\t: %s\n",
- (month & RTC_EOSC) ? "disabled" : "enabled",
- (month & RTC_ESQW) ? "disabled" : "enabled");
-
- amode = ((rtc_read(RTC_MINUTES_ALARM) & 0x80) >> 5) |
- ((rtc_read(RTC_HOURS_ALARM) & 0x80) >> 6) |
- ((rtc_read(RTC_DAY_ALARM) & 0x80) >> 7);
- if (amode == 7) s = "each minute";
- else if (amode == 3) s = "minutes match";
- else if (amode == 1) s = "hours and minutes match";
- else if (amode == 0) s = "days, hours and minutes match";
- else s = "invalid";
- p += sprintf(p, "alarm_mode\t: %s\n", s);
-
- cmd = rtc_read(RTC_CMD);
- p += sprintf(p,
- "alarm_enable\t: %s\n"
- "wdog_alarm\t: %s\n"
- "alarm_mask\t: %s\n"
- "wdog_alarm_mask\t: %s\n"
- "interrupt_mode\t: %s\n"
- "INTB_mode\t: %s_active\n"
- "interrupt_pins\t: %s\n",
- (cmd & RTC_TDF) ? "yes" : "no",
- (cmd & RTC_WAF) ? "yes" : "no",
- (cmd & RTC_TDM) ? "disabled" : "enabled",
- (cmd & RTC_WAM) ? "disabled" : "enabled",
- (cmd & RTC_PU_LVL) ? "pulse" : "level",
- (cmd & RTC_IBH_LO) ? "low" : "high",
- (cmd & RTC_IPSW) ? "unswapped" : "swapped");
-
- return p - buf;
-}
-
-static int ds1286_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = ds1286_proc_output (page);
- if (len <= off+count) *eof = 1;
- *start = page + off;
- len -= off;
- if (len>count)
- len = count;
- if (len<0)
- len = 0;
-
- return len;
-}
-
-/*
- * Returns true if a clock update is in progress
- */
-static inline unsigned char ds1286_is_updating(void)
-{
- return rtc_read(RTC_CMD) & RTC_TE;
-}
-
-
-static void ds1286_get_time(struct rtc_time *rtc_tm)
-{
- unsigned char save_control;
- unsigned int flags;
- unsigned long uip_watchdog = jiffies;
-
- /*
- * read RTC once any update in progress is done. The update
- * can take just over 2ms. We wait 10 to 20ms. There is no need to
- * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
- * If you need to know *exactly* when a second has started, enable
- * periodic update complete interrupts, (via ioctl) and then
- * immediately read /dev/rtc which will block until you get the IRQ.
- * Once the read clears, read the RTC time (again via ioctl). Easy.
- */
-
- if (ds1286_is_updating() != 0)
- while (jiffies - uip_watchdog < 2*HZ/100)
- barrier();
-
- /*
- * Only the values that we read from the RTC are set. We leave
- * tm_wday, tm_yday and tm_isdst untouched. Even though the
- * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
- * by the RTC when initially set to a non-zero value.
- */
- spin_lock_irqsave(&ds1286_lock, flags);
- save_control = rtc_read(RTC_CMD);
- rtc_write((save_control|RTC_TE), RTC_CMD);
-
- rtc_tm->tm_sec = rtc_read(RTC_SECONDS);
- rtc_tm->tm_min = rtc_read(RTC_MINUTES);
- rtc_tm->tm_hour = rtc_read(RTC_HOURS) & 0x3f;
- rtc_tm->tm_mday = rtc_read(RTC_DATE);
- rtc_tm->tm_mon = rtc_read(RTC_MONTH) & 0x1f;
- rtc_tm->tm_year = rtc_read(RTC_YEAR);
-
- rtc_write(save_control, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- BCD_TO_BIN(rtc_tm->tm_sec);
- BCD_TO_BIN(rtc_tm->tm_min);
- BCD_TO_BIN(rtc_tm->tm_hour);
- BCD_TO_BIN(rtc_tm->tm_mday);
- BCD_TO_BIN(rtc_tm->tm_mon);
- BCD_TO_BIN(rtc_tm->tm_year);
-
- /*
- * Account for differences between how the RTC uses the values
- * and how they are defined in a struct rtc_time;
- */
- if (rtc_tm->tm_year < 45)
- rtc_tm->tm_year += 30;
- if ((rtc_tm->tm_year += 40) < 70)
- rtc_tm->tm_year += 100;
-
- rtc_tm->tm_mon--;
-}
-
-static int ds1286_set_time(struct rtc_time *rtc_tm)
-{
- unsigned char mon, day, hrs, min, sec, leap_yr;
- unsigned char save_control;
- unsigned int yrs, flags;
-
-
- yrs = rtc_tm->tm_year + 1900;
- mon = rtc_tm->tm_mon + 1; /* tm_mon starts at zero */
- day = rtc_tm->tm_mday;
- hrs = rtc_tm->tm_hour;
- min = rtc_tm->tm_min;
- sec = rtc_tm->tm_sec;
-
- if (yrs < 1970)
- return -EINVAL;
-
- leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
-
- if ((mon > 12) || (day == 0))
- return -EINVAL;
-
- if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
- return -EINVAL;
-
- if ((hrs >= 24) || (min >= 60) || (sec >= 60))
- return -EINVAL;
-
- if ((yrs -= 1940) > 255) /* They are unsigned */
- return -EINVAL;
-
- if (yrs >= 100)
- yrs -= 100;
-
- BIN_TO_BCD(sec);
- BIN_TO_BCD(min);
- BIN_TO_BCD(hrs);
- BIN_TO_BCD(day);
- BIN_TO_BCD(mon);
- BIN_TO_BCD(yrs);
-
- spin_lock_irqsave(&ds1286_lock, flags);
- save_control = rtc_read(RTC_CMD);
- rtc_write((save_control|RTC_TE), RTC_CMD);
-
- rtc_write(yrs, RTC_YEAR);
- rtc_write(mon, RTC_MONTH);
- rtc_write(day, RTC_DATE);
- rtc_write(hrs, RTC_HOURS);
- rtc_write(min, RTC_MINUTES);
- rtc_write(sec, RTC_SECONDS);
- rtc_write(0, RTC_HUNDREDTH_SECOND);
-
- rtc_write(save_control, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
-}
-
-static void ds1286_get_alm_time(struct rtc_time *alm_tm)
-{
- unsigned char cmd;
- unsigned int flags;
-
- /*
- * Only the values that we read from the RTC are set. That
- * means only tm_wday, tm_hour, tm_min.
- */
- spin_lock_irqsave(&ds1286_lock, flags);
- alm_tm->tm_min = rtc_read(RTC_MINUTES_ALARM) & 0x7f;
- alm_tm->tm_hour = rtc_read(RTC_HOURS_ALARM) & 0x1f;
- alm_tm->tm_wday = rtc_read(RTC_DAY_ALARM) & 0x07;
- cmd = rtc_read(RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- BCD_TO_BIN(alm_tm->tm_min);
- BCD_TO_BIN(alm_tm->tm_hour);
- alm_tm->tm_sec = 0;
-}
-
-module_init(ds1286_init);
-module_exit(ds1286_exit);
-
-MODULE_AUTHOR("Ralf Baechle");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(RTC_MINOR);
+++ /dev/null
-/*
- * dz.c: Serial port driver for DECStations equiped
- * with the DZ chipset.
- *
- * Copyright (C) 1998 Olivier A. D. Lebaillif
- *
- * Email: olivier.lebaillif@ifrsys.com
- *
- * [31-AUG-98] triemer
- * Changed IRQ to use Harald's dec internals interrupts.h
- * removed base_addr code - moving address assignment to setup.c
- * Changed name of dz_init to rs_init to be consistent with tc code
- * [13-NOV-98] triemer fixed code to receive characters
- * after patches by harald to irq code.
- * [09-JAN-99] triemer minor fix for schedule - due to removal of timeout
- * field from "current" - somewhere between 2.1.121 and 2.1.131
-Qua Jun 27 15:02:26 BRT 2001
- * [27-JUN-2001] Arnaldo Carvalho de Melo <acme@conectiva.com.br> - cleanups
- *
- * Parts (C) 1999 David Airlie, airlied@linux.ie
- * [07-SEP-99] Bugfixes
- */
-
-/* #define DEBUG_DZ 1 */
-
-#include <linux/module.h>
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/major.h>
-#include <linux/param.h>
-#include <linux/interrupt.h>
-#include <linux/serial.h>
-#include <linux/serialP.h>
-#include <asm-mips/wbflush.h>
-#include <asm/dec/interrupts.h> /* for definition of SERIAL */
-
-/* for definition of struct console */
-#ifdef CONFIG_SERIAL_CONSOLE
-#define CONSOLE_LINE (3)
-#endif /* ifdef CONFIG_SERIAL_CONSOLE */
-#if defined(CONFIG_SERIAL_CONSOLE) || defined(DEBUG_DZ)
-#include <linux/console.h>
-#endif /* if defined(CONFIG_SERIAL_CONSOLE) || defined(DEBUG_DZ) */
-
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-
-#include <asm/uaccess.h>
-#include <asm/irq.h>
-#include <asm/dec/machtype.h>
-#include <asm/dec/kn01.h>
-#include <asm/dec/kn02.h>
-
-#ifdef DEBUG_DZ
-#include <linux/ptrace.h>
-#include <linux/fs.h>
-#include <asm/bootinfo.h>
-
-extern int (*prom_printf) (char *,...);
-#endif
-
-
-
-#include "dz.h"
-
-#define DZ_INTR_DEBUG 1
-
-DECLARE_TASK_QUEUE(tq_serial);
-
-static struct dz_serial *lines[4];
-static unsigned char tmp_buffer[256];
-
-
-
-#ifdef DEBUG_DZ
-/*
- * debugging code to send out chars via prom
- */
-static void debug_console( const char *s,int count)
-{
- unsigned i;
-
- for (i = 0; i < count; i++) {
- if (*s == 10)
- prom_printf("%c", 13);
- prom_printf("%c", *s++);
- }
-}
-#endif
-
-/*
- * ------------------------------------------------------------
- * dz_in () and dz_out ()
- *
- * These routines are used to access the registers of the DZ
- * chip, hiding relocation differences between implementation.
- * ------------------------------------------------------------
- */
-
-static inline unsigned short dz_in (struct dz_serial *info, unsigned offset)
-{
- volatile u16 *addr = (volatile u16 *)(info->port + offset);
-
- return *addr;
-}
-
-static inline void dz_out (struct dz_serial *info, unsigned offset,
- unsigned short value)
-{
- volatile u16 *addr = (volatile u16 *)(info->port + offset);
- *addr = value;
-}
-
-/*
- * ------------------------------------------------------------
- * rs_stop () and rs_start ()
- *
- * These routines are called before setting or resetting
- * tty->stopped. They enable or disable transmitter interrupts,
- * as necessary.
- * ------------------------------------------------------------
- */
-
-static void dz_stop (struct tty_struct *tty)
-{
- struct dz_serial *info;
- unsigned short mask, tmp;
-
- if (!tty)
- return;
-
- info = (struct dz_serial *)tty->driver_data;
-
- mask = 1 << info->line;
- tmp = dz_in (info, DZ_TCR); /* read the TX flag */
-
- tmp &= ~mask; /* clear the TX flag */
- dz_out (info, DZ_TCR, tmp);
-}
-
-static void dz_start (struct tty_struct *tty)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
- unsigned short mask, tmp;
-
- mask = 1 << info->line;
- tmp = dz_in (info, DZ_TCR); /* read the TX flag */
-
- tmp |= mask; /* set the TX flag */
- dz_out (info, DZ_TCR, tmp);
-}
-
-/*
- * ------------------------------------------------------------
- * Here starts the interrupt handling routines. All of the
- * following subroutines are declared as inline and are folded
- * into dz_interrupt. They were separated out for readability's
- * sake.
- *
- * Note: rs_interrupt() is a "fast" interrupt, which means that it
- * runs with interrupts turned off. People who may want to modify
- * rs_interrupt() should try to keep the interrupt handler as fast as
- * possible. After you are done making modifications, it is not a bad
- * idea to do:
- *
- * gcc -S -DKERNEL -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer dz.c
- *
- * and look at the resulting assemble code in serial.s.
- *
- * ------------------------------------------------------------
- */
-
-/*
- * ------------------------------------------------------------
- * dz_sched_event ()
- *
- * This routine is used by the interrupt handler to schedule
- * processing in the software interrupt portion of the driver.
- * ------------------------------------------------------------
- */
-static inline void dz_sched_event (struct dz_serial *info, int event)
-{
- info->event |= 1 << event;
- queue_task(&info->tqueue, &tq_serial);
- mark_bh(SERIAL_BH);
-}
-
-/*
- * ------------------------------------------------------------
- * receive_char ()
- *
- * This routine deals with inputs from any lines.
- * ------------------------------------------------------------
- */
-static inline void receive_chars (struct dz_serial *info_in)
-{
- struct dz_serial *info;
- struct tty_struct *tty = 0;
- struct async_icount *icount;
- int ignore = 0;
- unsigned short status, tmp;
- unsigned char ch;
-
- /*
- * This code is going to be a problem... the call to tty_flip_buffer
- * is going to need to be rethought...
- */
- do {
- status = dz_in (info_in, DZ_RBUF);
- info = lines[LINE(status)];
-
- /* punt so we don't get duplicate characters */
- if (!(status & DZ_DVAL))
- goto ignore_char;
-
- ch = UCHAR(status); /* grab the char */
-
-#if 0
- if (info->is_console) {
- if (ch == 0)
- return; /* it's a break ... */
- }
-#endif
-
- tty = info->tty; /* now tty points to the proper dev */
- icount = &info->icount;
-
- if (!tty)
- break;
- if (tty->flip.count >= TTY_FLIPBUF_SIZE) break;
-
- *tty->flip.char_buf_ptr = ch;
- *tty->flip.flag_buf_ptr = 0;
- icount->rx++;
-
- /* keep track of the statistics */
- if (status & (DZ_OERR | DZ_FERR | DZ_PERR)) {
- if (status & DZ_PERR) /* parity error */
- icount->parity++;
- else if (status & DZ_FERR) /* frame error */
- icount->frame++;
- if (status & DZ_OERR) /* overrun error */
- icount->overrun++;
-
- /*
- * Check to see if we should ignore the character and
- * mask off conditions that should be ignored
- */
-
- if (status & info->ignore_status_mask) {
- if (++ignore > 100)
- break;
- goto ignore_char;
- }
-
- /* mask off the error conditions we want to ignore */
- tmp = status & info->read_status_mask;
-
- if (tmp & DZ_PERR) {
- *tty->flip.flag_buf_ptr = TTY_PARITY;
-#ifdef DEBUG_DZ
- debug_console("PERR\n",5);
-#endif /* DEBUG_DZ */
- } else if (tmp & DZ_FERR) {
- *tty->flip.flag_buf_ptr = TTY_FRAME;
-#ifdef DEBUG_DZ
- debug_console("FERR\n",5);
-#endif /* DEBUG_DZ */
- } if (tmp & DZ_OERR) {
-#ifdef DEBUG_DZ
- debug_console("OERR\n",5);
-#endif /* DEBUG_DZ */
- if (tty->flip.count < TTY_FLIPBUF_SIZE) {
- tty->flip.count++;
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- *tty->flip.flag_buf_ptr = TTY_OVERRUN;
- }
- }
- }
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
-ignore_char:
- ;
- } while (status & DZ_DVAL);
-
- if (tty)
- tty_flip_buffer_push(tty);
-}
-
-/*
- * ------------------------------------------------------------
- * transmit_char ()
- *
- * This routine deals with outputs to any lines.
- * ------------------------------------------------------------
- */
-static inline void transmit_chars (struct dz_serial *info)
-{
- unsigned char tmp;
-
- if (info->x_char) { /* XON/XOFF chars */
- dz_out(info, DZ_TDR, info->x_char);
- info->icount.tx++;
- info->x_char = 0;
- return;
- }
-
- /* if nothing to do or stopped or hardware stopped */
- if ((info->xmit_cnt <= 0) || info->tty->stopped ||
- info->tty->hw_stopped) {
- dz_stop(info->tty);
- return;
- }
-
- /*
- * If something to do ... (rember the dz has no output fifo so we go
- * one char at a time :-<
- */
- tmp = (unsigned short) info->xmit_buf[info->xmit_tail++];
- dz_out(info, DZ_TDR, tmp);
- info->xmit_tail = info->xmit_tail & (DZ_XMIT_SIZE - 1);
- info->icount.tx++;
-
- if (--info->xmit_cnt < WAKEUP_CHARS)
- dz_sched_event(info, DZ_EVENT_WRITE_WAKEUP);
-
- /* Are we done */
- if (info->xmit_cnt <= 0)
- dz_stop(info->tty);
-}
-
-/*
- * ------------------------------------------------------------
- * check_modem_status ()
- *
- * Only valid for the MODEM line duh !
- * ------------------------------------------------------------
- */
-static inline void check_modem_status (struct dz_serial *info)
-{
- unsigned short status;
-
- /* if not ne modem line just return */
- if (info->line != DZ_MODEM)
- return;
-
- status = dz_in(info, DZ_MSR);
-
- /* it's easy, since DSR2 is the only bit in the register */
- if (status)
- info->icount.dsr++;
-}
-
-/*
- * ------------------------------------------------------------
- * dz_interrupt ()
- *
- * this is the main interrupt routine for the DZ chip.
- * It deals with the multiple ports.
- * ------------------------------------------------------------
- */
-static void dz_interrupt (int irq, void *dev, struct pt_regs *regs)
-{
- struct dz_serial *info;
- unsigned short status;
-
- /* get the reason why we just got an irq */
- status = dz_in((struct dz_serial *)dev, DZ_CSR);
- info = lines[LINE(status)]; /* re-arrange info the proper port */
-
- if (status & DZ_RDONE)
- receive_chars(info); /* the receive function */
-
- if (status & DZ_TRDY)
- transmit_chars (info);
-}
-
-/*
- * -------------------------------------------------------------------
- * Here ends the DZ interrupt routines.
- * -------------------------------------------------------------------
- */
-
-/*
- * This routine is used to handle the "bottom half" processing for the
- * serial driver, known also the "software interrupt" processing.
- * This processing is done at the kernel interrupt level, after the
- * rs_interrupt() has returned, BUT WITH INTERRUPTS TURNED ON. This
- * is where time-consuming activities which can not be done in the
- * interrupt driver proper are done; the interrupt driver schedules
- * them using rs_sched_event(), and they get done here.
- */
-static void do_serial_bh (void)
-{
- run_task_queue (&tq_serial);
-}
-
-static void do_softint (void *private_data)
-{
- struct dz_serial *info = (struct dz_serial *) private_data;
- struct tty_struct *tty = info->tty;
-
- if (!tty)
- return;
-
- if (test_and_clear_bit(DZ_EVENT_WRITE_WAKEUP, &info->event)) {
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- tty->ldisc.write_wakeup)
- (tty->ldisc.write_wakeup) (tty);
- wake_up_interruptible (&tty->write_wait);
- }
-}
-
-/*
- * -------------------------------------------------------------------
- * This routine is called from the scheduler tqueue when the interrupt
- * routine has signalled that a hangup has occurred. The path of
- * hangup processing is:
- *
- * serial interrupt routine -> (scheduler tqueue) ->
- * do_serial_hangup() -> tty->hangup() -> rs_hangup()
- * -------------------------------------------------------------------
- */
-static void do_serial_hangup (void *private_data)
-{
- struct dz_serial *info = (struct dz_serial *) private_data;
- struct tty_struct *tty = info->tty;
-
- if (!tty)
- return;
-
- tty_hangup(tty);
-}
-
-/*
- * -------------------------------------------------------------------
- * startup ()
- *
- * various initialization tasks
- * -------------------------------------------------------------------
- */
-static int startup (struct dz_serial *info)
-{
- unsigned long page, flags;
- unsigned short tmp;
-
- if (info->is_initialized)
- return 0;
-
- save_and_cli(flags);
-
- if (!info->port) {
- if (info->tty) set_bit(TTY_IO_ERROR, &info->tty->flags);
- restore_flags(flags);
- return -ENODEV;
- }
-
- if (!info->xmit_buf) {
- page = get_zeroed_page(GFP_KERNEL);
- if (!page) {
- restore_flags (flags);
- return -ENOMEM;
- }
- info->xmit_buf = (unsigned char *)page;
- }
-
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
-
- /* enable the interrupt and the scanning */
- tmp = dz_in(info, DZ_CSR);
- tmp |= (DZ_RIE | DZ_TIE | DZ_MSE);
- dz_out(info, DZ_CSR, tmp);
-
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
- change_speed(info); /* set up the speed */
-
- /*
- * Clear the line transmitter buffer I can't figure out why I need to
- * do this - but its necessary - in order for the console portion and
- * the interrupt portion to live happily side by side.
- */
-
- info->is_initialized = 1;
-
- restore_flags(flags);
-
- return 0;
-}
-
-/*
- * -------------------------------------------------------------------
- * shutdown ()
- *
- * This routine will shutdown a serial port; interrupts are disabled, and
- * DTR is dropped if the hangup on close termio flag is on.
- * -------------------------------------------------------------------
- */
-static void shutdown (struct dz_serial *info)
-{
- unsigned long flags;
- unsigned short tmp;
-
- if (!info->is_initialized)
- return;
-
- save_and_cli(flags);
-
- dz_stop (info->tty);
-
- info->cflags &= ~DZ_CREAD; /* turn off receive enable flag */
- dz_out(info, DZ_LPR, info->cflags);
-
- if (info->xmit_buf) { /* free Tx buffer */
- free_page((unsigned long)info->xmit_buf);
- info->xmit_buf = 0;
- }
-
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
- tmp = dz_in(info, DZ_TCR);
- if (tmp & DZ_MODEM_DTR) {
- tmp &= ~DZ_MODEM_DTR;
- dz_out(info, DZ_TCR, tmp);
- }
- }
-
- if (info->tty)
- set_bit (TTY_IO_ERROR, &info->tty->flags);
-
- info->is_initialized = 0;
-
- restore_flags (flags);
-}
-
-/*
- * -------------------------------------------------------------------
- * change_speed ()
- *
- * set the baud rate.
- * -------------------------------------------------------------------
- */
-static void change_speed (struct dz_serial *info)
-{
- unsigned long flags;
- unsigned cflag;
- int baud;
-
- if (!info->tty || !info->tty->termios)
- return;
-
- save_and_cli(flags);
-
- info->cflags = info->line;
-
- cflag = info->tty->termios->c_cflag;
-
- switch (cflag & CSIZE) {
- case CS5:
- info->cflags |= DZ_CS5;
- break;
- case CS6:
- info->cflags |= DZ_CS6;
- break;
- case CS7:
- info->cflags |= DZ_CS7;
- break;
- case CS8:
- default:
- info->cflags |= DZ_CS8;
- }
-
- if (cflag & CSTOPB)
- info->cflags |= DZ_CSTOPB;
- if (cflag & PARENB)
- info->cflags |= DZ_PARENB;
- if (cflag & PARODD)
- info->cflags |= DZ_PARODD;
-
- baud = tty_get_baud_rate(info->tty);
- switch (baud) {
- case 50:
- info->cflags |= DZ_B50;
- break;
- case 75:
- info->cflags |= DZ_B75;
- break;
- case 110:
- info->cflags |= DZ_B110;
- break;
- case 134:
- info->cflags |= DZ_B134;
- break;
- case 150:
- info->cflags |= DZ_B150;
- break;
- case 300:
- info->cflags |= DZ_B300;
- break;
- case 600:
- info->cflags |= DZ_B600;
- break;
- case 1200:
- info->cflags |= DZ_B1200;
- break;
- case 1800:
- info->cflags |= DZ_B1800;
- break;
- case 2000:
- info->cflags |= DZ_B2000;
- break;
- case 2400:
- info->cflags |= DZ_B2400;
- break;
- case 3600:
- info->cflags |= DZ_B3600;
- break;
- case 4800:
- info->cflags |= DZ_B4800;
- break;
- case 7200:
- info->cflags |= DZ_B7200;
- break;
- case 9600:
- default:
- info->cflags |= DZ_B9600;
- }
-
- info->cflags |= DZ_RXENAB;
- dz_out(info, DZ_LPR, info->cflags);
-
- /* setup accept flag */
- info->read_status_mask = DZ_OERR;
- if (I_INPCK(info->tty))
- info->read_status_mask |= (DZ_FERR | DZ_PERR);
-
- /* characters to ignore */
- info->ignore_status_mask = 0;
- if (I_IGNPAR(info->tty))
- info->ignore_status_mask |= (DZ_FERR | DZ_PERR);
-
- restore_flags(flags);
-}
-
-/*
- * -------------------------------------------------------------------
- * dz_flush_char ()
- *
- * Flush the buffer.
- * -------------------------------------------------------------------
- */
-static void dz_flush_chars (struct tty_struct *tty)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
- unsigned long flags;
-
- if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !info->xmit_buf)
- return;
-
- save_and_cli(flags);
- dz_start (info->tty);
- restore_flags(flags);
-}
-
-
-/*
- * -------------------------------------------------------------------
- * dz_write ()
- *
- * main output routine.
- * -------------------------------------------------------------------
- */
-static int dz_write (struct tty_struct *tty, int from_user,
- const unsigned char *buf, int count)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
- unsigned long flags;
- int c, ret = 0;
-
- if (!tty )
- return ret;
- if (!info->xmit_buf)
- return ret;
- if (!tmp_buf)
- tmp_buf = tmp_buffer;
-
- if (from_user) {
- down (&tmp_buf_sem);
- while (1) {
- c = MIN(count, MIN(DZ_XMIT_SIZE - info->xmit_cnt - 1,
- DZ_XMIT_SIZE - info->xmit_head));
- if (c <= 0)
- break;
-
- c -= copy_from_user (tmp_buf, buf, c);
- if (!c) {
- if (!ret)
- ret = -EFAULT;
- break;
- }
-
- save_and_cli(flags);
-
- c = MIN(c, MIN(DZ_XMIT_SIZE - info->xmit_cnt - 1,
- DZ_XMIT_SIZE - info->xmit_head));
- memcpy(info->xmit_buf + info->xmit_head, tmp_buf, c);
- info->xmit_head = ((info->xmit_head + c) &
- (DZ_XMIT_SIZE - 1));
- info->xmit_cnt += c;
- restore_flags(flags);
-
- buf += c;
- count -= c;
- ret += c;
- }
- up(&tmp_buf_sem);
- } else {
- while (1) {
- save_and_cli(flags);
-
- c = MIN(count, MIN(DZ_XMIT_SIZE - info->xmit_cnt - 1,
- DZ_XMIT_SIZE - info->xmit_head));
- if (c <= 0) {
- restore_flags (flags);
- break;
- }
- memcpy(info->xmit_buf + info->xmit_head, buf, c);
- info->xmit_head = ((info->xmit_head + c) &
- (DZ_XMIT_SIZE-1));
- info->xmit_cnt += c;
- restore_flags(flags);
-
- buf += c;
- count -= c;
- ret += c;
- }
- }
-
- if (info->xmit_cnt) {
- if (!tty->stopped) {
- if (!tty->hw_stopped) {
- dz_start (info->tty);
- }
- }
- }
-
- return ret;
-}
-
-/*
- * -------------------------------------------------------------------
- * dz_write_room ()
- *
- * compute the amount of space available for writing.
- * -------------------------------------------------------------------
- */
-static int dz_write_room (struct tty_struct *tty)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
- int ret;
-
- ret = DZ_XMIT_SIZE - info->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
-
- return ret;
-}
-
-/*
- * -------------------------------------------------------------------
- * dz_chars_in_buffer ()
- *
- * compute the amount of char left to be transmitted
- * -------------------------------------------------------------------
- */
-static int dz_chars_in_buffer (struct tty_struct *tty)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
-
- return info->xmit_cnt;
-}
-
-/*
- * -------------------------------------------------------------------
- * dz_flush_buffer ()
- *
- * Empty the output buffer
- * -------------------------------------------------------------------
- */
-static void dz_flush_buffer (struct tty_struct *tty)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
-
- cli();
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- sti();
-
- wake_up_interruptible (&tty->write_wait);
-
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- tty->ldisc.write_wakeup)
- tty->ldisc.write_wakeup(tty);
-}
-
-/*
- * ------------------------------------------------------------
- * dz_throttle () and dz_unthrottle ()
- *
- * This routine is called by the upper-layer tty layer to signal that
- * incoming characters should be throttled (or not).
- * ------------------------------------------------------------
- */
-static void dz_throttle (struct tty_struct *tty)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
-
- if (I_IXOFF(tty))
- info->x_char = STOP_CHAR(tty);
-}
-
-static void dz_unthrottle (struct tty_struct *tty)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
-
- if (I_IXOFF(tty)) {
- if (info->x_char)
- info->x_char = 0;
- else
- info->x_char = START_CHAR(tty);
- }
-}
-
-static void dz_send_xchar (struct tty_struct *tty, char ch)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
-
- info->x_char = ch;
-
- if (ch)
- dz_start(info->tty);
-}
-
-/*
- * ------------------------------------------------------------
- * rs_ioctl () and friends
- * ------------------------------------------------------------
- */
-static int get_serial_info(struct dz_serial *info,
- struct serial_struct *retinfo)
-{
- struct serial_struct tmp;
-
- if (!retinfo)
- return -EFAULT;
-
- memset (&tmp, 0, sizeof(tmp));
-
- tmp.type = info->type;
- tmp.line = info->line;
- tmp.port = info->port;
- tmp.irq = SERIAL;
- tmp.flags = info->flags;
- tmp.baud_base = info->baud_base;
- tmp.close_delay = info->close_delay;
- tmp.closing_wait = info->closing_wait;
-
- return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
-}
-
-static int set_serial_info (struct dz_serial *info,
- struct serial_struct *new_info)
-{
- struct serial_struct new_serial;
- struct dz_serial old_info;
- int retval = 0;
-
- if (!new_info)
- return -EFAULT;
-
- if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
- return -EFAULT;
-
- old_info = *info;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (info->count > 1)
- return -EBUSY;
-
- /*
- * OK, past this point, all the error checking has been done.
- * At this point, we start making changes.....
- */
-
- info->baud_base = new_serial.baud_base;
- info->type = new_serial.type;
- info->close_delay = new_serial.close_delay;
- info->closing_wait = new_serial.closing_wait;
-
- retval = startup(info);
-
- return retval;
-}
-
-/*
- * get_lsr_info - get line status register info
- *
- * Purpose: Let user call ioctl() to get info when the UART physically
- * is emptied. On bus types like RS485, the transmitter must
- * release the bus after transmitting. This must be done when
- * the transmit shift register is empty, not be done when the
- * transmit holding register is empty. This functionality
- * allows an RS485 driver to be written in user space.
- */
-static int get_lsr_info (struct dz_serial *info, unsigned int *value)
-{
- unsigned short status = dz_in (info, DZ_LPR);
-
- return put_user (status, value);
-}
-
-/*
- * This routine sends a break character out the serial port.
- */
-static void send_break (struct dz_serial *info, int duration)
-{
- unsigned long flags;
- unsigned short tmp, mask;
-
- if (!info->port)
- return;
-
- mask = 1 << info->line;
- tmp = dz_in (info, DZ_TCR);
- tmp |= mask;
-
- current->state = TASK_INTERRUPTIBLE;
-
- save_and_cli(flags);
- dz_out(info, DZ_TCR, tmp);
- schedule_timeout(duration);
- tmp &= ~mask;
- dz_out(info, DZ_TCR, tmp);
- restore_flags(flags);
-}
-
-static int dz_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int error;
- struct dz_serial * info = (struct dz_serial *)tty->driver_data;
- int retval;
-
- if (cmd != TIOCGSERIAL && cmd != TIOCSSERIAL &&
- cmd != TIOCSERCONFIG && cmd != TIOCSERGWILD &&
- cmd != TIOCSERSWILD && cmd != TIOCSERGSTRUCT) {
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
- }
-
- switch (cmd) {
- case TCSBRK: /* SVID version: non-zero arg --> no break */
- retval = tty_check_change(tty);
- if (retval)
- return retval;
- tty_wait_until_sent(tty, 0);
- if (!arg)
- send_break(info, HZ/4); /* 1/4 second */
- return 0;
-
- case TCSBRKP: /* support for POSIX tcsendbreak() */
- retval = tty_check_change(tty);
- if (retval)
- return retval;
- tty_wait_until_sent(tty, 0);
- send_break(info, arg ? arg*(HZ/10) : HZ/4);
- return 0;
-
- case TIOCGSOFTCAR:
- return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long *)arg);
-
- case TIOCSSOFTCAR:
- if (get_user (arg, (unsigned long *)arg))
- return -EFAULT;
-
- tty->termios->c_cflag = (tty->termios->c_cflag & ~CLOCAL) |
- (arg ? CLOCAL : 0);
- return 0;
-
- case TIOCGSERIAL:
- return get_serial_info(info, (struct serial_struct *)arg);
-
- case TIOCSSERIAL:
- return set_serial_info(info, (struct serial_struct *) arg);
-
- case TIOCSERGETLSR: /* Get line status register */
- return get_lsr_info (info, (unsigned int *)arg);
-
- case TIOCSERGSTRUCT:
- return copy_to_user((struct dz_serial *)arg, info,
- sizeof(struct dz_serial)) ? -EFAULT : 0;
-
- default:
- return -ENOIOCTLCMD;
- }
-
- return 0;
-}
-
-static void dz_set_termios (struct tty_struct *tty,
- struct termios *old_termios)
-{
- struct dz_serial *info = (struct dz_serial *)tty->driver_data;
-
- if (tty->termios->c_cflag == old_termios->c_cflag)
- return;
-
- change_speed (info);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- dz_start(tty);
- }
-}
-
-/*
- * ------------------------------------------------------------
- * dz_close()
- *
- * This routine is called when the serial port gets closed. First, we
- * wait for the last remaining data to be sent. Then, we turn off
- * the transmit enable and receive enable flags.
- * ------------------------------------------------------------
- */
-static void dz_close(struct tty_struct *tty, struct file *filp)
-{
- struct dz_serial * info = (struct dz_serial *)tty->driver_data;
- unsigned long flags;
-
- if (!info)
- return;
-
- save_and_cli(flags);
-
- if (tty_hung_up_p(filp)) {
- restore_flags(flags);
- return;
- }
-
- if ((tty->count == 1) && (info->count != 1)) {
- /*
- * Uh, oh. tty->count is 1, which means that the tty structure
- * will be freed. Info->count should always be one in these
- * conditions. If it's greater than one, we've got real
- * problems, since it means the serial port won't be shutdown.
- */
- printk("dz_close: bad serial port count; tty->count is 1, "
- "info->count is %d\n", info->count);
- info->count = 1;
- }
-
- if (--info->count < 0) {
- printk("ds_close: bad serial port count for ttyS%02d: %d\n",
- info->line, info->count);
- info->count = 0;
- }
-
- if (info->count) {
- restore_flags(flags);
- return;
- }
- info->flags |= DZ_CLOSING;
- /*
- * Now we wait for the transmit buffer to clear; and we notify the line
- * discipline to only process XON/XOFF characters.
- */
- tty->closing = 1;
-
- if (info->closing_wait != DZ_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, info->closing_wait);
-
- /*
- * At this point we stop accepting input. To do this, we disable the
- * receive line status interrupts.
- */
- shutdown(info);
-
- if (tty->driver->flush_buffer)
- tty->driver->flush_buffer (tty);
- if (tty->ldisc.flush_buffer)
- tty->ldisc.flush_buffer (tty);
- tty->closing = 0;
- info->event = 0;
- info->tty = 0;
-
- if (tty->ldisc.num != ldiscs[N_TTY].num) {
- if (tty->ldisc.close)
- tty->ldisc.close(tty);
- tty->ldisc = ldiscs[N_TTY];
- tty->termios->c_line = N_TTY;
- if (tty->ldisc.open)
- tty->ldisc.open(tty);
- }
- if (info->blocked_open) {
- if (info->close_delay) {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(info->close_delay);
- }
- wake_up_interruptible(&info->open_wait);
- }
-
- info->flags &= ~(DZ_NORMAL_ACTIVE | DZ_CLOSING);
- wake_up_interruptible(&info->close_wait);
-
- restore_flags(flags);
-}
-
-/*
- * dz_hangup () --- called by tty_hangup() when a hangup is signaled.
- */
-static void dz_hangup (struct tty_struct *tty)
-{
- struct dz_serial *info = (struct dz_serial *) tty->driver_data;
-
- dz_flush_buffer(tty);
- shutdown(info);
- info->event = 0;
- info->count = 0;
- info->flags &= ~DZ_NORMAL_ACTIVE;
- info->tty = 0;
- wake_up_interruptible(&info->open_wait);
-}
-
-/*
- * ------------------------------------------------------------
- * rs_open() and friends
- * ------------------------------------------------------------
- */
-static int block_til_ready(struct tty_struct *tty, struct file *filp,
- struct dz_serial *info)
-{
- DECLARE_WAITQUEUE(wait, current);
- int retval;
- int do_clocal = 0;
-
- /*
- * If the device is in the middle of being closed, then block
- * until it's done, and then try again.
- */
- if (info->flags & DZ_CLOSING) {
- interruptible_sleep_on(&info->close_wait);
- return -EAGAIN;
- }
-
- /*
- * If non-blocking mode is set, or the port is not enabled, then make
- * the check up front and then exit.
- */
- if ((filp->f_flags & O_NONBLOCK) ||
- (tty->flags & (1 << TTY_IO_ERROR))) {
- info->flags |= DZ_NORMAL_ACTIVE;
-
- return 0;
- }
-
- if (tty->termios->c_cflag & CLOCAL)
- do_clocal = 1;
-
- /*
- * Block waiting for the carrier detect and the line to become free
- * (i.e., not in use by the callout). While we are in this loop,
- * info->count is dropped by one, so that dz_close() knows when to free
- * things. We restore it upon exit, either normal or abnormal.
- */
- retval = 0;
- add_wait_queue(&info->open_wait, &wait);
-
- info->count--;
- info->blocked_open++;
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p (filp) || !(info->is_initialized)) {
- retval = -EAGAIN;
- break;
- }
- if (!(info->flags & DZ_CLOSING) && do_clocal)
- break;
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
- schedule();
- }
-
- current->state = TASK_RUNNING;
- remove_wait_queue (&info->open_wait, &wait);
- if (!tty_hung_up_p(filp))
- info->count++;
- info->blocked_open--;
-
- if (retval)
- return retval;
- info->flags |= DZ_NORMAL_ACTIVE;
- return 0;
-}
-
-/*
- * This routine is called whenever a serial port is opened. It
- * enables interrupts for a serial port. It also performs the
- * serial-specific initialization for the tty structure.
- */
-static int dz_open (struct tty_struct *tty, struct file *filp)
-{
- struct dz_serial *info;
- int retval, line;
-
- line = tty->index;
-
- /*
- * The dz lines for the mouse/keyboard must be opened using their
- * respective drivers.
- */
- if ((line < 0) || (line >= DZ_NB_PORT))
- return -ENODEV;
-
- if ((line == DZ_KEYBOARD) || (line == DZ_MOUSE))
- return -ENODEV;
-
- info = lines[line];
- info->count++;
-
- tty->driver_data = info;
- info->tty = tty;
-
- /*
- * Start up serial port
- */
- retval = startup (info);
- if (retval)
- return retval;
-
- retval = block_til_ready (tty, filp, info);
- if (retval)
- return retval;
-
- return 0;
-}
-
-static void show_serial_version (void)
-{
- printk("%s%s\n", dz_name, dz_version);
-}
-
-static struct tty_driver *serial_driver;
-
-static struct tty_operations serial_ops = {
- .open = dz_open,
- .close = dz_close,
- .write = dz_write,
- .flush_chars = dz_flush_chars,
- .write_room = dz_write_room,
- .chars_in_buffer = dz_chars_in_buffer,
- .flush_buffer = dz_flush_buffer,
- .ioctl = dz_ioctl,
- .throttle = dz_throttle,
- .unthrottle = dz_unthrottle,
- .send_xchar = dz_send_xchar,
- .set_termios = dz_set_termios,
- .stop = dz_stop,
- .start = dz_start,
- .hangup = dz_hangup,
-};
-
-int __init dz_init(void)
-{
- int i, flags;
- struct dz_serial *info;
-
- serial_driver = alloc_tty_driver(DZ_NB_PORT);
- if (!serial_driver)
- return -ENOMEM;
-
- /* Setup base handler, and timer table. */
- init_bh(SERIAL_BH, do_serial_bh);
-
- show_serial_version();
-
- serial_driver->owner = THIS_MODULE;
- serial_driver->devfs_name = "tts/";
- serial_driver->name = "ttyS";
- serial_driver->major = TTY_MAJOR;
- serial_driver->minor_start = 64;
- serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- serial_driver->subtype = SERIAL_TYPE_NORMAL;
- serial_driver->init_termios = tty_std_termios;
- serial_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL |
- CLOCAL;
- serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
- tty_set_operations(serial_driver, &serial_ops);
-
- if (tty_register_driver(serial_driver))
- panic("Couldn't register serial driver\n");
-
- save_flags(flags); cli();
- for (i=0; i < DZ_NB_PORT; i++) {
- info = &multi[i];
- lines[i] = info;
- info->magic = SERIAL_MAGIC;
-
- if ((mips_machtype == MACH_DS23100) ||
- (mips_machtype == MACH_DS5100))
- info->port = (unsigned long) KN01_DZ11_BASE;
- else
- info->port = (unsigned long) KN02_DZ11_BASE;
-
- info->line = i;
- info->tty = 0;
- info->close_delay = 50;
- info->closing_wait = 3000;
- info->x_char = 0;
- info->event = 0;
- info->count = 0;
- info->blocked_open = 0;
- info->tqueue.routine = do_softint;
- info->tqueue.data = info;
- info->tqueue_hangup.routine = do_serial_hangup;
- info->tqueue_hangup.data = info;
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
-
- /*
- * If we are pointing to address zero then punt - not correctly
- * set up in setup.c to handle this.
- */
- if (! info->port)
- return 0;
-
- printk("ttyS%02d at 0x%08x (irq = %d)\n", info->line,
- info->port, SERIAL);
-
- tty_register_device(serial_driver, info->line, NULL);
- }
-
- /* Reset the chip */
-#ifndef CONFIG_SERIAL_CONSOLE
- {
- int tmp;
- dz_out(info, DZ_CSR, DZ_CLR);
- while ((tmp = dz_in(info,DZ_CSR)) & DZ_CLR);
- wbflush();
-
- /* Enable scanning */
- dz_out(info, DZ_CSR, DZ_MSE);
- }
-#endif
-
- /*
- * Order matters here... the trick is that flags is updated... in
- * request_irq - to immediatedly obliterate it is unwise.
- */
- restore_flags(flags);
-
- if (request_irq(SERIAL, dz_interrupt, SA_INTERRUPT, "DZ", lines[0]))
- panic("Unable to register DZ interrupt\n");
-
- return 0;
-}
-
-#ifdef CONFIG_SERIAL_CONSOLE
-static void dz_console_put_char (unsigned char ch)
-{
- unsigned long flags;
- int loops = 2500;
- unsigned short tmp = ch;
- /*
- * this code sends stuff out to serial device - spinning its wheels and
- * waiting.
- */
-
- /* force the issue - point it at lines[3]*/
- dz_console = &multi[CONSOLE_LINE];
-
- save_and_cli(flags);
-
- /* spin our wheels */
- while (((dz_in(dz_console, DZ_CSR) & DZ_TRDY) != DZ_TRDY) && loops--)
- ;
-
- /* Actually transmit the character. */
- dz_out(dz_console, DZ_TDR, tmp);
-
- restore_flags(flags);
-}
-
-/*
- * -------------------------------------------------------------------
- * dz_console_print ()
- *
- * dz_console_print is registered for printk.
- * The console must be locked when we get here.
- * -------------------------------------------------------------------
- */
-static void dz_console_print (struct console *cons,
- const char *str,
- unsigned int count)
-{
-#ifdef DEBUG_DZ
- prom_printf((char *)str);
-#endif
- while (count--) {
- if (*str == '\n')
- dz_console_put_char('\r');
- dz_console_put_char(*str++);
- }
-}
-
-static struct tty_driver *dz_console_device(struct console *c, int *index)
-{
- *index = c->index;
- return serial_driver;
-}
-
-static int __init dz_console_setup(struct console *co, char *options)
-{
- int baud = 9600;
- int bits = 8;
- int parity = 'n';
- int cflag = CREAD | HUPCL | CLOCAL;
- char *s;
- unsigned short mask,tmp;
-
- if (options) {
- baud = simple_strtoul(options, NULL, 10);
- s = options;
- while (*s >= '0' && *s <= '9')
- s++;
- if (*s)
- parity = *s++;
- if (*s)
- bits = *s - '0';
- }
-
- /*
- * Now construct a cflag setting.
- */
- switch (baud) {
- case 1200:
- cflag |= DZ_B1200;
- break;
- case 2400:
- cflag |= DZ_B2400;
- break;
- case 4800:
- cflag |= DZ_B4800;
- break;
- case 9600:
- default:
- cflag |= DZ_B9600;
- break;
- }
- switch (bits) {
- case 7:
- cflag |= DZ_CS7;
- break;
- default:
- case 8:
- cflag |= DZ_CS8;
- break;
- }
- switch (parity) {
- case 'o':
- case 'O':
- cflag |= DZ_PARODD;
- break;
- case 'e':
- case 'E':
- cflag |= DZ_PARENB;
- break;
- }
- co->cflag = cflag;
-
- /* TOFIX: force to console line */
- dz_console = &multi[CONSOLE_LINE];
- if ((mips_machtype == MACH_DS23100) || (mips_machtype == MACH_DS5100))
- dz_console->port = KN01_DZ11_BASE;
- else
- dz_console->port = KN02_DZ11_BASE;
- dz_console->line = CONSOLE_LINE;
-
- dz_out(dz_console, DZ_CSR, DZ_CLR);
- while ((tmp = dz_in(dz_console,DZ_CSR)) & DZ_CLR)
- ;
-
- /* enable scanning */
- dz_out(dz_console, DZ_CSR, DZ_MSE);
-
- /* Set up flags... */
- dz_console->cflags = 0;
- dz_console->cflags |= DZ_B9600;
- dz_console->cflags |= DZ_CS8;
- dz_console->cflags |= DZ_PARENB;
- dz_out(dz_console, DZ_LPR, dz_console->cflags);
-
- mask = 1 << dz_console->line;
- tmp = dz_in (dz_console, DZ_TCR); /* read the TX flag */
- if (!(tmp & mask)) {
- tmp |= mask; /* set the TX flag */
- dz_out (dz_console, DZ_TCR, tmp);
- }
-
- return 0;
-}
-
-static struct console dz_sercons = {
- .name = "ttyS",
- .write = dz_console_print,
- .device = dz_console_device,
- .setup = dz_console_setup,
- .flags = CON_CONSDEV | CON_PRINTBUFFER,
- .index = CONSOLE_LINE,
-};
-
-void __init dz_serial_console_init(void)
-{
- register_console(&dz_sercons);
-}
-
-#endif /* ifdef CONFIG_SERIAL_CONSOLE */
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * dz.h: Serial port driver for DECStations equiped
- * with the DZ chipset.
- *
- * Copyright (C) 1998 Olivier A. D. Lebaillif
- *
- * Email: olivier.lebaillif@ifrsys.com
- *
- */
-#ifndef DZ_SERIAL_H
-#define DZ_SERIAL_H
-
-/*
- * Definitions for the Control and Status Received.
- */
-#define DZ_TRDY 0x8000 /* Transmitter empty */
-#define DZ_TIE 0x4000 /* Transmitter Interrupt Enable */
-#define DZ_RDONE 0x0080 /* Receiver data ready */
-#define DZ_RIE 0x0040 /* Receive Interrupt Enable */
-#define DZ_MSE 0x0020 /* Master Scan Enable */
-#define DZ_CLR 0x0010 /* Master reset */
-#define DZ_MAINT 0x0008 /* Loop Back Mode */
-
-/*
- * Definitions for the Received buffer.
- */
-#define DZ_RBUF_MASK 0x00FF /* Data Mask in the Receive Buffer */
-#define DZ_LINE_MASK 0x0300 /* Line Mask in the Receive Buffer */
-#define DZ_DVAL 0x8000 /* Valid Data indicator */
-#define DZ_OERR 0x4000 /* Overrun error indicator */
-#define DZ_FERR 0x2000 /* Frame error indicator */
-#define DZ_PERR 0x1000 /* Parity error indicator */
-
-#define LINE(x) (x & DZ_LINE_MASK) >> 8 /* Get the line number from the input buffer */
-#define UCHAR(x) (unsigned char)(x & DZ_RBUF_MASK)
-
-/*
- * Definitions for the Transmit Register.
- */
-#define DZ_LINE_KEYBOARD 0x0001
-#define DZ_LINE_MOUSE 0x0002
-#define DZ_LINE_MODEM 0x0004
-#define DZ_LINE_PRINTER 0x0008
-
-#define DZ_MODEM_DTR 0x0400 /* DTR for the modem line (2) */
-
-/*
- * Definitions for the Modem Status Register.
- */
-#define DZ_MODEM_DSR 0x0200 /* DSR for the modem line (2) */
-
-/*
- * Definitions for the Transmit Data Register.
- */
-#define DZ_BRK0 0x0100 /* Break assertion for line 0 */
-#define DZ_BRK1 0x0200 /* Break assertion for line 1 */
-#define DZ_BRK2 0x0400 /* Break assertion for line 2 */
-#define DZ_BRK3 0x0800 /* Break assertion for line 3 */
-
-/*
- * Definitions for the Line Parameter Register.
- */
-#define DZ_KEYBOARD 0x0000 /* line 0 = keyboard */
-#define DZ_MOUSE 0x0001 /* line 1 = mouse */
-#define DZ_MODEM 0x0002 /* line 2 = modem */
-#define DZ_PRINTER 0x0003 /* line 3 = printer */
-
-#define DZ_CSIZE 0x0018 /* Number of bits per byte (mask) */
-#define DZ_CS5 0x0000 /* 5 bits per byte */
-#define DZ_CS6 0x0008 /* 6 bits per byte */
-#define DZ_CS7 0x0010 /* 7 bits per byte */
-#define DZ_CS8 0x0018 /* 8 bits per byte */
-
-#define DZ_CSTOPB 0x0020 /* 2 stop bits instead of one */
-
-#define DZ_PARENB 0x0040 /* Parity enable */
-#define DZ_PARODD 0x0080 /* Odd parity instead of even */
-
-#define DZ_CBAUD 0x0E00 /* Baud Rate (mask) */
-#define DZ_B50 0x0000
-#define DZ_B75 0x0100
-#define DZ_B110 0x0200
-#define DZ_B134 0x0300
-#define DZ_B150 0x0400
-#define DZ_B300 0x0500
-#define DZ_B600 0x0600
-#define DZ_B1200 0x0700
-#define DZ_B1800 0x0800
-#define DZ_B2000 0x0900
-#define DZ_B2400 0x0A00
-#define DZ_B3600 0x0B00
-#define DZ_B4800 0x0C00
-#define DZ_B7200 0x0D00
-#define DZ_B9600 0x0E00
-
-#define DZ_CREAD 0x1000 /* Enable receiver */
-#define DZ_RXENAB 0x1000 /* enable receive char */
-/*
- * Addresses for the DZ registers
- */
-#define DZ_CSR 0x00 /* Control and Status Register */
-#define DZ_RBUF 0x08 /* Receive Buffer */
-#define DZ_LPR 0x08 /* Line Parameters Register */
-#define DZ_TCR 0x10 /* Transmitter Control Register */
-#define DZ_MSR 0x18 /* Modem Status Register */
-#define DZ_TDR 0x18 /* Transmit Data Register */
-
-
-#define DZ_NB_PORT 4
-
-#define DZ_XMIT_SIZE 4096 /* buffer size */
-#define WAKEUP_CHARS DZ_XMIT_SIZE/4
-
-#define DZ_EVENT_WRITE_WAKEUP 0
-
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-
-#define DZ_INITIALIZED 0x80000000 /* Serial port was initialized */
-#define DZ_CALLOUT_ACTIVE 0x40000000 /* Call out device is active */
-#define DZ_NORMAL_ACTIVE 0x20000000 /* Normal device is active */
-#define DZ_BOOT_AUTOCONF 0x10000000 /* Autoconfigure port on bootup */
-#define DZ_CLOSING 0x08000000 /* Serial port is closing */
-#define DZ_CTS_FLOW 0x04000000 /* Do CTS flow control */
-#define DZ_CHECK_CD 0x02000000 /* i.e., CLOCAL */
-
-#define DZ_CLOSING_WAIT_INF 0
-#define DZ_CLOSING_WAIT_NONE 65535
-
-#define DZ_SPLIT_TERMIOS 0x0008 /* Separate termios for dialin/callout */
-#define DZ_SESSION_LOCKOUT 0x0100 /* Lock out cua opens based on session */
-#define DZ_PGRP_LOCKOUT 0x0200 /* Lock out cua opens based on pgrp */
-
-struct dz_serial {
- unsigned port; /* base address for the port */
- int type;
- int flags;
- int baud_base;
- int blocked_open;
- unsigned short close_delay;
- unsigned short closing_wait;
- unsigned short line; /* port/line number */
- unsigned short cflags; /* line configuration flag */
- unsigned short x_char; /* xon/xoff character */
- unsigned short read_status_mask; /* mask for read condition */
- unsigned short ignore_status_mask; /* mask for ignore condition */
- unsigned long event; /* mask used in BH */
- unsigned char *xmit_buf; /* Transmit buffer */
- int xmit_head; /* Position of the head */
- int xmit_tail; /* Position of the tail */
- int xmit_cnt; /* Count of the chars in the buffer */
- int count; /* indicates how many times it has been opened */
- int magic;
-
- struct async_icount icount; /* keep track of things ... */
- struct tty_struct *tty; /* tty associated */
- struct tq_struct tqueue; /* Queue for BH */
- struct tq_struct tqueue_hangup;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
-
- unsigned char is_console; /* flag indicating a serial console */
- unsigned char is_initialized;
-};
-
-static struct dz_serial multi[DZ_NB_PORT]; /* Four serial lines in the DZ chip */
-static struct dz_serial *dz_console;
-
-/*
- * tmp_buf is used as a temporary buffer by serial_write. We need to
- * lock it in case the copy_from_user blocks while swapping in a page,
- * and some other program tries to do a serial write at the same time.
- * Since the lock will only come under contention when the system is
- * swapping and available memory is low, it makes sense to share one
- * buffer across all the serial ports, since it significantly saves
- * memory if large numbers of serial ports are open.
- */
-static unsigned char *tmp_buf;
-static DECLARE_MUTEX(tmp_buf_sem);
-
-static char *dz_name = "DECstation DZ serial driver version ";
-static char *dz_version = "1.02";
-
-static inline unsigned short dz_in (struct dz_serial *, unsigned);
-static inline void dz_out (struct dz_serial *, unsigned, unsigned short);
-
-static inline void dz_sched_event (struct dz_serial *, int);
-static inline void receive_chars (struct dz_serial *);
-static inline void transmit_chars (struct dz_serial *);
-static inline void check_modem_status (struct dz_serial *);
-
-static void dz_stop (struct tty_struct *);
-static void dz_start (struct tty_struct *);
-static void dz_interrupt (int, void *, struct pt_regs *);
-static void do_serial_bh (void);
-static void do_softint (void *);
-static void do_serial_hangup (void *);
-static void change_speed (struct dz_serial *);
-static void dz_flush_chars (struct tty_struct *);
-static void dz_console_print (struct console *, const char *, unsigned int);
-static void dz_flush_buffer (struct tty_struct *);
-static void dz_throttle (struct tty_struct *);
-static void dz_unthrottle (struct tty_struct *);
-static void dz_send_xchar (struct tty_struct *, char);
-static void shutdown (struct dz_serial *);
-static void send_break (struct dz_serial *, int);
-static void dz_set_termios (struct tty_struct *, struct termios *);
-static void dz_close (struct tty_struct *, struct file *);
-static void dz_hangup (struct tty_struct *);
-static void show_serial_version (void);
-
-static int dz_write (struct tty_struct *, int, const unsigned char *, int);
-static int dz_write_room (struct tty_struct *);
-static int dz_chars_in_buffer (struct tty_struct *);
-static int startup (struct dz_serial *);
-static int get_serial_info (struct dz_serial *, struct serial_struct *);
-static int set_serial_info (struct dz_serial *, struct serial_struct *);
-static int get_lsr_info (struct dz_serial *, unsigned int *);
-static int dz_ioctl (struct tty_struct *, struct file *, unsigned int, unsigned long);
-static int block_til_ready (struct tty_struct *, struct file *, struct dz_serial *);
-static int dz_open (struct tty_struct *, struct file *);
-
-#ifdef MODULE
-int init_module (void)
-void cleanup_module (void)
-#endif
-
-#endif
-
-#endif /* DZ_SERIAL_H */
+++ /dev/null
-/*
- * Intel & MS High Precision Event Timer Implementation.
- * Contributors:
- * Venki Pallipadi
- * Bob Picco
- */
-
-#include <linux/config.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/miscdevice.h>
-#include <linux/major.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/spinlock.h>
-#include <linux/sysctl.h>
-#include <linux/wait.h>
-#include <linux/bcd.h>
-#include <linux/seq_file.h>
-
-#include <asm/current.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/bitops.h>
-#include <asm/div64.h>
-
-#include <linux/acpi.h>
-#include <acpi/acpi_bus.h>
-#include <linux/hpet.h>
-
-/*
- * The High Precision Event Timer driver.
- * This driver is closely modelled after the rtc.c driver.
- * http://www.intel.com/labs/platcomp/hpet/hpetspec.htm
- */
-#define HPET_USER_FREQ (64)
-#define HPET_DRIFT (500)
-
-static u32 hpet_ntimer, hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
-
-/* A lock for concurrent access by app and isr hpet activity. */
-static spinlock_t hpet_lock = SPIN_LOCK_UNLOCKED;
-/* A lock for concurrent intermodule access to hpet and isr hpet activity. */
-static spinlock_t hpet_task_lock = SPIN_LOCK_UNLOCKED;
-
-struct hpet_dev {
- struct hpets *hd_hpets;
- struct hpet *hd_hpet;
- struct hpet_timer *hd_timer;
- unsigned long hd_ireqfreq;
- unsigned long hd_irqdata;
- wait_queue_head_t hd_waitqueue;
- struct fasync_struct *hd_async_queue;
- struct hpet_task *hd_task;
- unsigned int hd_flags;
- unsigned int hd_irq;
- unsigned int hd_hdwirq;
-};
-
-struct hpets {
- struct hpets *hp_next;
- struct hpet *hp_hpet;
- unsigned long hp_period;
- unsigned long hp_delta;
- unsigned int hp_ntimer;
- unsigned int hp_which;
- struct hpet_dev hp_dev[1];
-};
-
-static struct hpets *hpets;
-
-#define HPET_OPEN 0x0001
-#define HPET_IE 0x0002 /* interrupt enabled */
-#define HPET_PERIODIC 0x0004
-
-#if BITS_PER_LONG == 64
-#define write_counter(V, MC) writeq(V, MC)
-#define read_counter(MC) readq(MC)
-#else
-#define write_counter(V, MC) writel(V, MC)
-#define read_counter(MC) readl(MC)
-#endif
-
-#ifndef readq
-static unsigned long long __inline readq(void *addr)
-{
- return readl(addr) | (((unsigned long long)readl(addr + 4)) << 32LL);
-}
-#endif
-
-#ifndef writeq
-static void __inline writeq(unsigned long long v, void *addr)
-{
- writel(v & 0xffffffff, addr);
- writel(v >> 32, addr + 4);
-}
-#endif
-
-static irqreturn_t hpet_interrupt(int irq, void *data, struct pt_regs *regs)
-{
- struct hpet_dev *devp;
- unsigned long isr;
-
- devp = data;
-
- spin_lock(&hpet_lock);
- devp->hd_irqdata++;
-
- /*
- * For non-periodic timers, increment the accumulator.
- * This has the effect of treating non-periodic like periodic.
- */
- if ((devp->hd_flags & (HPET_IE | HPET_PERIODIC)) == HPET_IE) {
- unsigned long m, t;
-
- t = devp->hd_ireqfreq;
- m = read_counter(&devp->hd_hpet->hpet_mc);
- write_counter(t + m + devp->hd_hpets->hp_delta,
- &devp->hd_timer->hpet_compare);
- }
-
- isr = (1 << (devp - devp->hd_hpets->hp_dev));
- writeq(isr, &devp->hd_hpet->hpet_isr);
- spin_unlock(&hpet_lock);
-
- spin_lock(&hpet_task_lock);
- if (devp->hd_task)
- devp->hd_task->ht_func(devp->hd_task->ht_data);
- spin_unlock(&hpet_task_lock);
-
- wake_up_interruptible(&devp->hd_waitqueue);
-
- kill_fasync(&devp->hd_async_queue, SIGIO, POLL_IN);
-
- return IRQ_HANDLED;
-}
-
-static int hpet_open(struct inode *inode, struct file *file)
-{
- struct hpet_dev *devp;
- struct hpets *hpetp;
- int i;
-
- spin_lock_irq(&hpet_lock);
-
- for (devp = NULL, hpetp = hpets; hpetp && !devp; hpetp = hpetp->hp_next)
- for (i = 0; i < hpetp->hp_ntimer; i++)
- if (hpetp->hp_dev[i].hd_flags & HPET_OPEN
- || hpetp->hp_dev[i].hd_task)
- continue;
- else {
- devp = &hpetp->hp_dev[i];
- break;
- }
-
- if (!devp) {
- spin_unlock_irq(&hpet_lock);
- return -EBUSY;
- }
-
- file->private_data = devp;
- devp->hd_irqdata = 0;
- devp->hd_flags |= HPET_OPEN;
- spin_unlock_irq(&hpet_lock);
-
- return 0;
-}
-
-static ssize_t
-hpet_read(struct file *file, char *buf, size_t count, loff_t * ppos)
-{
- DECLARE_WAITQUEUE(wait, current);
- unsigned long data;
- ssize_t retval;
- struct hpet_dev *devp;
-
- devp = file->private_data;
- if (!devp->hd_ireqfreq)
- return -EIO;
-
- if (count < sizeof(unsigned long))
- return -EINVAL;
-
- add_wait_queue(&devp->hd_waitqueue, &wait);
-
- do {
- __set_current_state(TASK_INTERRUPTIBLE);
-
- spin_lock_irq(&hpet_lock);
- data = devp->hd_irqdata;
- devp->hd_irqdata = 0;
- spin_unlock_irq(&hpet_lock);
-
- if (data)
- break;
- else if (file->f_flags & O_NONBLOCK) {
- retval = -EAGAIN;
- goto out;
- } else if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- goto out;
- }
-
- schedule();
-
- } while (1);
-
- retval = put_user(data, (unsigned long *)buf);
- if (!retval)
- retval = sizeof(unsigned long);
- out:
- current->state = TASK_RUNNING;
- remove_wait_queue(&devp->hd_waitqueue, &wait);
-
- return retval;
-}
-
-static unsigned int hpet_poll(struct file *file, poll_table * wait)
-{
- unsigned long v;
- struct hpet_dev *devp;
-
- devp = file->private_data;
-
- if (!devp->hd_ireqfreq)
- return 0;
-
- poll_wait(file, &devp->hd_waitqueue, wait);
-
- spin_lock_irq(&hpet_lock);
- v = devp->hd_irqdata;
- spin_unlock_irq(&hpet_lock);
-
- if (v != 0)
- return POLLIN | POLLRDNORM;
-
- return 0;
-}
-
-static int hpet_mmap(struct file *file, struct vm_area_struct *vma)
-{
-#ifdef CONFIG_HPET_NOMMAP
- return -ENOSYS;
-#else
- struct hpet_dev *devp;
- unsigned long addr;
-
- if (((vma->vm_end - vma->vm_start) != PAGE_SIZE) || vma->vm_pgoff)
- return -EINVAL;
-
- if (vma->vm_flags & VM_WRITE)
- return -EPERM;
-
- devp = file->private_data;
- addr = (unsigned long)devp->hd_hpet;
-
- if (addr & (PAGE_SIZE - 1))
- return -ENOSYS;
-
- vma->vm_flags |= VM_IO;
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- addr = __pa(addr);
-
- if (remap_page_range
- (vma, vma->vm_start, addr, PAGE_SIZE, vma->vm_page_prot)) {
- printk(KERN_ERR "remap_page_range failed in hpet.c\n");
- return -EAGAIN;
- }
-
- return 0;
-#endif
-}
-
-static int hpet_fasync(int fd, struct file *file, int on)
-{
- struct hpet_dev *devp;
-
- devp = file->private_data;
-
- if (fasync_helper(fd, file, on, &devp->hd_async_queue) >= 0)
- return 0;
- else
- return -EIO;
-}
-
-static int hpet_release(struct inode *inode, struct file *file)
-{
- struct hpet_dev *devp;
- struct hpet_timer *timer;
- int irq = 0;
-
- devp = file->private_data;
- timer = devp->hd_timer;
-
- spin_lock_irq(&hpet_lock);
-
- writeq((readq(&timer->hpet_config) & ~Tn_INT_ENB_CNF_MASK),
- &timer->hpet_config);
-
- irq = devp->hd_irq;
- devp->hd_irq = 0;
-
- devp->hd_ireqfreq = 0;
-
- if (devp->hd_flags & HPET_PERIODIC
- && readq(&timer->hpet_config) & Tn_TYPE_CNF_MASK) {
- unsigned long v;
-
- v = readq(&timer->hpet_config);
- v ^= Tn_TYPE_CNF_MASK;
- writeq(v, &timer->hpet_config);
- }
-
- devp->hd_flags &= ~(HPET_OPEN | HPET_IE | HPET_PERIODIC);
- spin_unlock_irq(&hpet_lock);
-
- if (irq)
- free_irq(irq, devp);
-
- if (file->f_flags & FASYNC)
- hpet_fasync(-1, file, 0);
-
- file->private_data = 0;
- return 0;
-}
-
-static int hpet_ioctl_common(struct hpet_dev *, int, unsigned long, int);
-
-static int
-hpet_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- struct hpet_dev *devp;
-
- devp = file->private_data;
- return hpet_ioctl_common(devp, cmd, arg, 0);
-}
-
-static int hpet_ioctl_ieon(struct hpet_dev *devp)
-{
- struct hpet_timer *timer;
- struct hpet *hpet;
- struct hpets *hpetp;
- int irq;
- unsigned long g, v, t, m;
- unsigned long flags, isr;
-
- timer = devp->hd_timer;
- hpet = devp->hd_hpet;
- hpetp = devp->hd_hpets;
-
- v = readq(&timer->hpet_config);
- spin_lock_irq(&hpet_lock);
-
- if (devp->hd_flags & HPET_IE) {
- spin_unlock_irq(&hpet_lock);
- return -EBUSY;
- }
-
- devp->hd_flags |= HPET_IE;
- spin_unlock_irq(&hpet_lock);
-
- t = readq(&timer->hpet_config);
- irq = devp->hd_hdwirq;
-
- if (irq) {
- char name[7];
-
- sprintf(name, "hpet%d", (int)(devp - hpetp->hp_dev));
-
- if (request_irq
- (irq, hpet_interrupt, SA_INTERRUPT, name, (void *)devp)) {
- printk(KERN_ERR "hpet: IRQ %d is not free\n", irq);
- irq = 0;
- }
- }
-
- if (irq == 0) {
- spin_lock_irq(&hpet_lock);
- devp->hd_flags ^= HPET_IE;
- spin_unlock_irq(&hpet_lock);
- return -EIO;
- }
-
- devp->hd_irq = irq;
- t = devp->hd_ireqfreq;
- v = readq(&timer->hpet_config);
- g = v | Tn_INT_ENB_CNF_MASK;
-
- if (devp->hd_flags & HPET_PERIODIC) {
- write_counter(t, &timer->hpet_compare);
- g |= Tn_TYPE_CNF_MASK;
- v |= Tn_TYPE_CNF_MASK;
- writeq(v, &timer->hpet_config);
- v |= Tn_VAL_SET_CNF_MASK;
- writeq(v, &timer->hpet_config);
- local_irq_save(flags);
- m = read_counter(&hpet->hpet_mc);
- write_counter(t + m + hpetp->hp_delta, &timer->hpet_compare);
- } else {
- local_irq_save(flags);
- m = read_counter(&hpet->hpet_mc);
- write_counter(t + m + hpetp->hp_delta, &timer->hpet_compare);
- }
-
- isr = (1 << (devp - hpets->hp_dev));
- writeq(isr, &hpet->hpet_isr);
- writeq(g, &timer->hpet_config);
- local_irq_restore(flags);
-
- return 0;
-}
-
-static inline unsigned long hpet_time_div(unsigned long dis)
-{
- unsigned long long m = 1000000000000000ULL;
-
- do_div(m, dis);
-
- return (unsigned long)m;
-}
-
-static int
-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
-{
- struct hpet_timer *timer;
- struct hpet *hpet;
- struct hpets *hpetp;
- int err;
- unsigned long v;
-
- switch (cmd) {
- case HPET_IE_OFF:
- case HPET_INFO:
- case HPET_EPI:
- case HPET_DPI:
- case HPET_IRQFREQ:
- timer = devp->hd_timer;
- hpet = devp->hd_hpet;
- hpetp = devp->hd_hpets;
- break;
- case HPET_IE_ON:
- return hpet_ioctl_ieon(devp);
- default:
- return -EINVAL;
- }
-
- err = 0;
-
- switch (cmd) {
- case HPET_IE_OFF:
- if ((devp->hd_flags & HPET_IE) == 0)
- break;
- v = readq(&timer->hpet_config);
- v &= ~Tn_INT_ENB_CNF_MASK;
- writeq(v, &timer->hpet_config);
- if (devp->hd_irq) {
- free_irq(devp->hd_irq, devp);
- devp->hd_irq = 0;
- }
- devp->hd_flags ^= HPET_IE;
- break;
- case HPET_INFO:
- {
- struct hpet_info info;
-
- info.hi_ireqfreq = hpet_time_div(hpetp->hp_period *
- devp->hd_ireqfreq);
- info.hi_flags =
- readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK;
- info.hi_hpet = devp->hd_hpets->hp_which;
- info.hi_timer = devp - devp->hd_hpets->hp_dev;
- if (copy_to_user((void *)arg, &info, sizeof(info)))
- err = -EFAULT;
- break;
- }
- case HPET_EPI:
- v = readq(&timer->hpet_config);
- if ((v & Tn_PER_INT_CAP_MASK) == 0) {
- err = -ENXIO;
- break;
- }
- devp->hd_flags |= HPET_PERIODIC;
- break;
- case HPET_DPI:
- v = readq(&timer->hpet_config);
- if ((v & Tn_PER_INT_CAP_MASK) == 0) {
- err = -ENXIO;
- break;
- }
- if (devp->hd_flags & HPET_PERIODIC &&
- readq(&timer->hpet_config) & Tn_TYPE_CNF_MASK) {
- v = readq(&timer->hpet_config);
- v ^= Tn_TYPE_CNF_MASK;
- writeq(v, &timer->hpet_config);
- }
- devp->hd_flags &= ~HPET_PERIODIC;
- break;
- case HPET_IRQFREQ:
- if (!kernel && (arg > hpet_max_freq) &&
- !capable(CAP_SYS_RESOURCE)) {
- err = -EACCES;
- break;
- }
-
- if (arg & (arg - 1)) {
- err = -EINVAL;
- break;
- }
-
- devp->hd_ireqfreq = hpet_time_div(hpetp->hp_period * arg);
- }
-
- return err;
-}
-
-static struct file_operations hpet_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = hpet_read,
- .poll = hpet_poll,
- .ioctl = hpet_ioctl,
- .open = hpet_open,
- .release = hpet_release,
- .fasync = hpet_fasync,
- .mmap = hpet_mmap,
-};
-
-EXPORT_SYMBOL(hpet_alloc);
-EXPORT_SYMBOL(hpet_register);
-EXPORT_SYMBOL(hpet_unregister);
-EXPORT_SYMBOL(hpet_control);
-
-int hpet_register(struct hpet_task *tp, int periodic)
-{
- unsigned int i;
- u64 mask;
- struct hpet_timer *timer;
- struct hpet_dev *devp;
- struct hpets *hpetp;
-
- switch (periodic) {
- case 1:
- mask = Tn_PER_INT_CAP_MASK;
- break;
- case 0:
- mask = 0;
- break;
- default:
- return -EINVAL;
- }
-
- spin_lock_irq(&hpet_task_lock);
- spin_lock(&hpet_lock);
-
- for (devp = 0, hpetp = hpets; hpetp && !devp; hpetp = hpetp->hp_next)
- for (timer = hpetp->hp_hpet->hpet_timers, i = 0;
- i < hpetp->hp_ntimer; i++, timer++) {
- if ((readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK)
- != mask)
- continue;
-
- devp = &hpetp->hp_dev[i];
-
- if (devp->hd_flags & HPET_OPEN || devp->hd_task) {
- devp = 0;
- continue;
- }
-
- tp->ht_opaque = devp;
- devp->hd_task = tp;
- break;
- }
-
- spin_unlock(&hpet_lock);
- spin_unlock_irq(&hpet_task_lock);
-
- if (tp->ht_opaque)
- return 0;
- else
- return -EBUSY;
-}
-
-static inline int hpet_tpcheck(struct hpet_task *tp)
-{
- struct hpet_dev *devp;
- struct hpets *hpetp;
-
- devp = tp->ht_opaque;
-
- if (!devp)
- return -ENXIO;
-
- for (hpetp = hpets; hpetp; hpetp = hpetp->hp_next)
- if (devp >= hpetp->hp_dev
- && devp < (hpetp->hp_dev + hpetp->hp_ntimer)
- && devp->hd_hpet == hpetp->hp_hpet)
- return 0;
-
- return -ENXIO;
-}
-
-int hpet_unregister(struct hpet_task *tp)
-{
- struct hpet_dev *devp;
- struct hpet_timer *timer;
- int err;
-
- if ((err = hpet_tpcheck(tp)))
- return err;
-
- spin_lock_irq(&hpet_task_lock);
- spin_lock(&hpet_lock);
-
- devp = tp->ht_opaque;
- if (devp->hd_task != tp) {
- spin_unlock(&hpet_lock);
- spin_unlock_irq(&hpet_task_lock);
- return -ENXIO;
- }
-
- timer = devp->hd_timer;
- writeq((readq(&timer->hpet_config) & ~Tn_INT_ENB_CNF_MASK),
- &timer->hpet_config);
- devp->hd_flags &= ~(HPET_IE | HPET_PERIODIC);
- devp->hd_task = 0;
- spin_unlock(&hpet_lock);
- spin_unlock_irq(&hpet_task_lock);
-
- return 0;
-}
-
-int hpet_control(struct hpet_task *tp, unsigned int cmd, unsigned long arg)
-{
- struct hpet_dev *devp;
- int err;
-
- if ((err = hpet_tpcheck(tp)))
- return err;
-
- spin_lock_irq(&hpet_lock);
- devp = tp->ht_opaque;
- if (devp->hd_task != tp) {
- spin_unlock_irq(&hpet_lock);
- return -ENXIO;
- }
- spin_unlock_irq(&hpet_lock);
- return hpet_ioctl_common(devp, cmd, arg, 1);
-}
-
-#ifdef CONFIG_TIME_INTERPOLATION
-
-static unsigned long hpet_offset, last_wall_hpet;
-static long hpet_nsecs_per_cycle, hpet_cycles_per_sec;
-
-static unsigned long hpet_getoffset(void)
-{
- return hpet_offset + (read_counter(&hpets->hp_hpet->hpet_mc) -
- last_wall_hpet) * hpet_nsecs_per_cycle;
-}
-
-static void hpet_update(long delta)
-{
- unsigned long mc;
- unsigned long offset;
-
- mc = read_counter(&hpets->hp_hpet->hpet_mc);
- offset = hpet_offset + (mc - last_wall_hpet) * hpet_nsecs_per_cycle;
-
- if (delta < 0 || (unsigned long)delta < offset)
- hpet_offset = offset - delta;
- else
- hpet_offset = 0;
- last_wall_hpet = mc;
-}
-
-static void hpet_reset(void)
-{
- hpet_offset = 0;
- last_wall_hpet = read_counter(&hpets->hp_hpet->hpet_mc);
-}
-
-static struct time_interpolator hpet_interpolator = {
- .get_offset = hpet_getoffset,
- .update = hpet_update,
- .reset = hpet_reset
-};
-
-#endif
-
-static ctl_table hpet_table[] = {
- {
- .ctl_name = 1,
- .procname = "max-user-freq",
- .data = &hpet_max_freq,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
- {.ctl_name = 0}
-};
-
-static ctl_table hpet_root[] = {
- {
- .ctl_name = 1,
- .procname = "hpet",
- .maxlen = 0,
- .mode = 0555,
- .child = hpet_table,
- },
- {.ctl_name = 0}
-};
-
-static ctl_table dev_root[] = {
- {
- .ctl_name = CTL_DEV,
- .procname = "dev",
- .maxlen = 0,
- .mode = 0555,
- .child = hpet_root,
- },
- {.ctl_name = 0}
-};
-
-static struct ctl_table_header *sysctl_header;
-
-static void *hpet_start(struct seq_file *s, loff_t * pos)
-{
- struct hpets *hpetp;
- loff_t n;
-
- for (n = *pos, hpetp = hpets; hpetp; hpetp = hpetp->hp_next)
- if (!n--)
- return hpetp;
-
- return 0;
-}
-
-static void *hpet_next(struct seq_file *s, void *v, loff_t * pos)
-{
- struct hpets *hpetp;
-
- hpetp = v;
- ++*pos;
- return hpetp->hp_next;
-}
-
-static void hpet_stop(struct seq_file *s, void *v)
-{
- return;
-}
-
-static int hpet_show(struct seq_file *s, void *v)
-{
- struct hpets *hpetp;
- struct hpet *hpet;
- u64 cap, vendor, period;
-
- hpetp = v;
- hpet = hpetp->hp_hpet;
-
- cap = readq(&hpet->hpet_cap);
- period = (cap & HPET_COUNTER_CLK_PERIOD_MASK) >>
- HPET_COUNTER_CLK_PERIOD_SHIFT;
- vendor = (cap & HPET_VENDOR_ID_MASK) >> HPET_VENDOR_ID_SHIFT;
-
- seq_printf(s,
- "HPET%d period = %d 10**-15 vendor = 0x%x number timer = %d\n",
- hpetp->hp_which, (u32) period, (u32) vendor,
- hpetp->hp_ntimer);
-
- return 0;
-}
-
-static struct seq_operations hpet_seq_ops = {
- .start = hpet_start,
- .next = hpet_next,
- .stop = hpet_stop,
- .show = hpet_show
-};
-
-static int hpet_proc_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &hpet_seq_ops);
-}
-
-static struct file_operations hpet_proc_fops = {
- .open = hpet_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release
-};
-
-/*
- * Adjustment for when arming the timer with
- * initial conditions. That is, main counter
- * ticks expired before interrupts are enabled.
- */
-#define TICK_CALIBRATE (1000UL)
-
-static unsigned long __init hpet_calibrate(struct hpets *hpetp)
-{
- struct hpet_timer *timer;
- unsigned long t, m, count, i, flags, start;
- struct hpet_dev *devp;
- int j;
- struct hpet *hpet;
-
- for (timer = 0, j = 0, devp = hpetp->hp_dev; j < hpetp->hp_ntimer;
- j++, devp++)
- if ((devp->hd_flags & HPET_OPEN) == 0) {
- timer = devp->hd_timer;
- break;
- }
-
- if (!timer)
- return 0;
-
- hpet = hpets->hp_hpet;
- t = read_counter(&timer->hpet_compare);
-
- i = 0;
- count = hpet_time_div(hpetp->hp_period * TICK_CALIBRATE);
-
- local_irq_save(flags);
-
- start = read_counter(&hpet->hpet_mc);
-
- do {
- m = read_counter(&hpet->hpet_mc);
- write_counter(t + m + hpetp->hp_delta, &timer->hpet_compare);
- } while (i++, (m - start) < count);
-
- local_irq_restore(flags);
-
- return (m - start) / i;
-}
-
-int __init hpet_alloc(struct hpet_data *hdp)
-{
- u64 cap, mcfg;
- struct hpet_dev *devp;
- u32 i, ntimer;
- struct hpets *hpetp;
- size_t siz;
- struct hpet *hpet;
- static struct hpets *last __initdata = (struct hpets *)0;
-
- /*
- * hpet_alloc can be called by platform dependent code.
- * if platform dependent code has allocated the hpet
- * ACPI also reports hpet, then we catch it here.
- */
- for (hpetp = hpets; hpetp; hpetp = hpetp->hp_next)
- if (hpetp->hp_hpet == (struct hpet *)(hdp->hd_address))
- return 0;
-
- siz = sizeof(struct hpets) + ((hdp->hd_nirqs - 1) *
- sizeof(struct hpet_dev));
-
- hpetp = kmalloc(siz, GFP_KERNEL);
-
- if (!hpetp)
- return -ENOMEM;
-
- memset(hpetp, 0, siz);
-
- hpetp->hp_which = hpet_nhpet++;
- hpetp->hp_hpet = (struct hpet *)hdp->hd_address;
-
- hpetp->hp_ntimer = hdp->hd_nirqs;
-
- for (i = 0; i < hdp->hd_nirqs; i++)
- hpetp->hp_dev[i].hd_hdwirq = hdp->hd_irq[i];
-
- hpet = hpetp->hp_hpet;
-
- cap = readq(&hpet->hpet_cap);
-
- ntimer = ((cap & HPET_NUM_TIM_CAP_MASK) >> HPET_NUM_TIM_CAP_SHIFT) + 1;
-
- if (hpetp->hp_ntimer != ntimer) {
- printk(KERN_WARNING "hpet: number irqs doesn't agree"
- " with number of timers\n");
- kfree(hpetp);
- return -ENODEV;
- }
-
- if (last)
- last->hp_next = hpetp;
- else
- hpets = hpetp;
-
- last = hpetp;
-
- hpetp->hp_period = (cap & HPET_COUNTER_CLK_PERIOD_MASK) >>
- HPET_COUNTER_CLK_PERIOD_SHIFT;
-
- mcfg = readq(&hpet->hpet_config);
- if ((mcfg & HPET_ENABLE_CNF_MASK) == 0) {
- write_counter(0L, &hpet->hpet_mc);
- mcfg |= HPET_ENABLE_CNF_MASK;
- writeq(mcfg, &hpet->hpet_config);
- }
-
- for (i = 0, devp = hpetp->hp_dev; i < hpetp->hp_ntimer;
- i++, hpet_ntimer++, devp++) {
- unsigned long v;
- struct hpet_timer *timer;
-
- timer = &hpet->hpet_timers[devp - hpetp->hp_dev];
- v = readq(&timer->hpet_config);
-
- devp->hd_hpets = hpetp;
- devp->hd_hpet = hpet;
- devp->hd_timer = timer;
-
- /*
- * If the timer was reserved by platform code,
- * then make timer unavailable for opens.
- */
- if (hdp->hd_state & (1 << i)) {
- devp->hd_flags = HPET_OPEN;
- continue;
- }
-
- init_waitqueue_head(&devp->hd_waitqueue);
- }
-
- hpetp->hp_delta = hpet_calibrate(hpetp);
-
- return 0;
-}
-
-static acpi_status __init hpet_resources(struct acpi_resource *res, void *data)
-{
- struct hpet_data *hdp;
- acpi_status status;
- struct acpi_resource_address64 addr;
- struct hpets *hpetp;
-
- hdp = data;
-
- status = acpi_resource_to_address64(res, &addr);
-
- if (ACPI_SUCCESS(status)) {
- unsigned long size;
-
- size = addr.max_address_range - addr.min_address_range + 1;
- hdp->hd_address =
- (unsigned long)ioremap(addr.min_address_range, size);
-
- for (hpetp = hpets; hpetp; hpetp = hpetp->hp_next)
- if (hpetp->hp_hpet == (struct hpet *)(hdp->hd_address))
- return -EBUSY;
- } else if (res->id == ACPI_RSTYPE_EXT_IRQ) {
- struct acpi_resource_ext_irq *irqp;
- int i;
-
- irqp = &res->data.extended_irq;
-
- if (irqp->number_of_interrupts > 0) {
- hdp->hd_nirqs = irqp->number_of_interrupts;
-
- for (i = 0; i < hdp->hd_nirqs; i++)
-#ifdef CONFIG_IA64
- hdp->hd_irq[i] =
- acpi_register_gsi(irqp->interrupts[i],
- irqp->edge_level,
- irqp->active_high_low);
-#else
- hdp->hd_irq[i] = irqp->interrupts[i];
-#endif
- }
- }
-
- return AE_OK;
-}
-
-static int __init hpet_acpi_add(struct acpi_device *device)
-{
- acpi_status result;
- struct hpet_data data;
-
- memset(&data, 0, sizeof(data));
-
- result =
- acpi_walk_resources(device->handle, METHOD_NAME__CRS,
- hpet_resources, &data);
-
- if (ACPI_FAILURE(result))
- return -ENODEV;
-
- if (!data.hd_address || !data.hd_nirqs) {
- printk("%s: no address or irqs in _CRS\n", __FUNCTION__);
- return -ENODEV;
- }
-
- return hpet_alloc(&data);
-}
-
-static int __init hpet_acpi_remove(struct acpi_device *device, int type)
-{
- return 0;
-}
-
-static struct acpi_driver hpet_acpi_driver __initdata = {
- .name = "hpet",
- .class = "",
- .ids = "PNP0103",
- .ops = {
- .add = hpet_acpi_add,
- .remove = hpet_acpi_remove,
- },
-};
-
-static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops };
-
-static int __init hpet_init(void)
-{
- struct proc_dir_entry *entry;
-
- (void)acpi_bus_register_driver(&hpet_acpi_driver);
-
- if (hpets) {
- if (misc_register(&hpet_misc))
- return -ENODEV;
-
- entry = create_proc_entry("driver/hpet", 0, 0);
-
- if (entry)
- entry->proc_fops = &hpet_proc_fops;
-
- sysctl_header = register_sysctl_table(dev_root, 0);
-
-#ifdef CONFIG_TIME_INTERPOLATION
- {
- struct hpet *hpet;
-
- hpet = hpets->hp_hpet;
- hpet_cycles_per_sec = hpet_time_div(hpets->hp_period);
- hpet_interpolator.frequency = hpet_cycles_per_sec;
- hpet_interpolator.drift = hpet_cycles_per_sec *
- HPET_DRIFT / 1000000;
- hpet_nsecs_per_cycle = 1000000000 / hpet_cycles_per_sec;
- register_time_interpolator(&hpet_interpolator);
- }
-#endif
- return 0;
- } else
- return -ENODEV;
-}
-
-static void __exit hpet_exit(void)
-{
- acpi_bus_unregister_driver(&hpet_acpi_driver);
-
- if (hpets) {
- unregister_sysctl_table(sysctl_header);
- remove_proc_entry("driver/hpet", NULL);
- }
-
- return;
-}
-
-module_init(hpet_init);
-module_exit(hpet_exit);
-MODULE_AUTHOR("Bob Picco <Robert.Picco@hp.com>");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * IBM eServer Hypervisor Virtual Console Server Device Driver
- * Copyright (C) 2003, 2004 IBM Corp.
- * Ryan S. Arnold (rsa@us.ibm.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author(s) : Ryan S. Arnold <rsa@us.ibm.com>
- *
- * This is the device driver for the IBM Hypervisor Virtual Console Server,
- * "hvcs". The IBM hvcs provides a tty driver interface to allow Linux
- * user space applications access to the system consoles of logically
- * partitioned operating systems, e.g. Linux, running on the same partitioned
- * Power5 ppc64 system. Physical hardware consoles per partition are not
- * practical on this hardware so system consoles are accessed by this driver
- * using inter-partition firmware interfaces to virtual terminal devices.
- *
- * A vty is known to the HMC as a "virtual serial server adapter". It is a
- * virtual terminal device that is created by firmware upon partition creation
- * to act as a partitioned OS's console device.
- *
- * Firmware dynamically (via hotplug) exposes vty-servers to a running ppc64
- * Linux system upon their creation by the HMC or their exposure during boot.
- * The non-user interactive backend of this driver is implemented as a vio
- * device driver so that it can receive notification of vty-server lifetimes
- * after it registers with the vio bus to handle vty-server probe and remove
- * callbacks.
- *
- * Many vty-servers can be configured to connect to one vty, but a vty can
- * only be actively connected to by a single vty-server, in any manner, at one
- * time. If the HMC is currently hosting the console for a target Linux
- * partition; attempts to open the tty device to the partition's console using
- * the hvcs on any partition will return -EBUSY with every open attempt until
- * the HMC frees the connection between its vty-server and the desired
- * partition's vty device. Conversely, a vty-server may only be connected to
- * a single vty at one time even though it may have several configured vty
- * partner possibilities.
- *
- * Firmware does not provide notification of vty partner changes to this
- * driver. This means that an HMC Super Admin may add or remove partner vtys
- * from a vty-server's partner list but the changes will not be signaled to
- * the vty-server. Firmware only notifies the driver when a vty-server is
- * added or removed from the system. To compensate for this deficiency, this
- * driver implements a sysfs update attribute which provides a method for
- * rescanning partner information upon a user's request.
- *
- * Each vty-server, prior to being exposed to this driver is reference counted
- * using the 2.6 Linux kernel kobject construct. This kobject is also used by
- * the vio bus to provide a vio device sysfs entry that this driver attaches
- * device specific attributes to, including partner information. The vio bus
- * framework also provides a sysfs entry for each vio driver. The hvcs driver
- * provides driver attributes in this entry.
- *
- * For direction on installation and usage of this driver please reference
- * Documentation/powerpc/hvcs.txt.
- */
-
-#include <linux/device.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/kobject.h>
-#include <linux/kthread.h>
-#include <linux/list.h>
-#include <linux/major.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/stat.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <asm/hvconsole.h>
-#include <asm/hvcserver.h>
-#include <asm/uaccess.h>
-#include <asm/vio.h>
-
-/*
- * 1.0.0 -> 1.1.0 Added kernel_thread scheduling methodology to driver to
- * replace wait_task constructs.
- *
- * 1.1.0 -> 1.2.0 Moved pi_buff initialization out of arch code into driver code
- * and added locking to share this buffer between hvcs_struct instances. This
- * is because the page_size kmalloc can't be done with a spin_lock held.
- *
- * Also added sysfs attribute to manually disconnect the vty-server from the vty
- * due to stupid firmware behavior when opening the connection then sending data
- * then then quickly closing the connection would cause data loss on the
- * receiving side. This required some reordering of the termination code.
- *
- * Fixed the hangup scenario and fixed memory leaks on module_exit.
- *
- * 1.2.0 -> 1.3.0 Moved from manual kernel thread creation & execution to
- * kthread construct which replaced in-kernel IPC for thread termination with
- * kthread_stop and kthread_should_stop. Explicit wait_queue handling was
- * removed because kthread handles this. Minor bug fix to postpone partner_info
- * clearing on hvcs_close until adapter removal to preserve context data for
- * printk on partner connection free. Added lock to protect hvcs_structs so
- * that hvcs_struct instances aren't added or removed during list traversal.
- * Cleaned up comment style, added spaces after commas, and broke function
- * declaration lines to be under 80 columns.
- */
-#define HVCS_DRIVER_VERSION "1.3.0"
-
-MODULE_AUTHOR("Ryan S. Arnold <rsa@us.ibm.com>");
-MODULE_DESCRIPTION("IBM hvcs (Hypervisor Virtual Console Server) Driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(HVCS_DRIVER_VERSION);
-
-/*
- * Since the Linux TTY code does not currently (2-04-2004) support dynamic
- * addition of tty derived devices and we shouldn't allocate thousands of
- * tty_device pointers when the number of vty-server & vty partner connections
- * will most often be much lower than this, we'll arbitrarily allocate
- * HVCS_DEFAULT_SERVER_ADAPTERS tty_structs and cdev's by default when we
- * register the tty_driver. This can be overridden using an insmod parameter.
- */
-#define HVCS_DEFAULT_SERVER_ADAPTERS 64
-
-/*
- * The user can't insmod with more than HVCS_MAX_SERVER_ADAPTERS hvcs device
- * nodes as a sanity check. Theoretically there can be over 1 Billion
- * vty-server & vty partner connections.
- */
-#define HVCS_MAX_SERVER_ADAPTERS 1024
-
-/*
- * We let Linux assign us a major number and we start the minors at zero. There
- * is no intuitive mapping between minor number and the target partition. The
- * mapping of minor number is related to the order the vty-servers are exposed
- * to this driver via the hvcs_probe function.
- */
-#define HVCS_MINOR_START 0
-
-/*
- * The hcall interface involves putting 8 chars into each of two registers.
- * We load up those 2 registers (in arch/ppc64/hvconsole.c) by casting char[16]
- * to long[2]. It would work without __ALIGNED__, but a little (tiny) bit
- * slower because an unaligned load is slower than aligned load.
- */
-#define __ALIGNED__ __attribute__((__aligned__(8)))
-
-/* Converged location code string length + 1 null terminator */
-#define CLC_LENGTH 80
-
-/*
- * How much data can firmware send with each hvc_put_chars()? Maybe this
- * should be moved into an architecture specific area.
- */
-#define HVCS_BUFF_LEN 16
-
-/*
- * This is the maximum amount of data we'll let the user send us (hvcs_write) at
- * once in a chunk as a sanity check.
- */
-#define HVCS_MAX_FROM_USER 4096
-
-/*
- * Be careful when adding flags to this line discipline. Don't add anything
- * that will cause echoing or we'll go into recursive loop echoing chars back
- * and forth with the console drivers.
- */
-static struct termios hvcs_tty_termios = {
- .c_iflag = IGNBRK | IGNPAR,
- .c_oflag = OPOST,
- .c_cflag = B38400 | CS8 | CREAD | HUPCL,
- .c_cc = INIT_C_CC
-};
-
-/*
- * This value is used to take the place of a command line parameter when the
- * module is inserted. It starts as -1 and stays as such if the user doesn't
- * specify a module insmod parameter. If they DO specify one then it is set to
- * the value of the integer passed in.
- */
-static int hvcs_parm_num_devs = -1;
-module_param(hvcs_parm_num_devs, int, 0);
-
-char hvcs_driver_name[] = "hvcs";
-char hvcs_device_node[] = "hvcs";
-char hvcs_driver_string[]
- = "IBM hvcs (Hypervisor Virtual Console Server) Driver";
-
-/* Status of partner info rescan triggered via sysfs. */
-static int hvcs_rescan_status = 0;
-
-static struct tty_driver *hvcs_tty_driver;
-
-/*
- * This is used to associate a vty-server, as it is exposed to this driver, with
- * a preallocated tty_struct.index. The dev node and hvcs index numbers are not
- * re-used after device removal otherwise removing and adding a new one would
- * link a /dev/hvcs* entry to a different vty-server than it did before the
- * removal. Incidentally, a newly exposed vty-server will always map to an
- * incrementally higher /dev/hvcs* entry than the last exposed vty-server.
- */
-static int hvcs_struct_count = -1;
-
-/*
- * Used by the khvcsd to pick up I/O operations when the kernel_thread is
- * already awake but potentially shifted to TASK_INTERRUPTIBLE state.
- */
-static int hvcs_kicked = 0;
-
-/* Used the the kthread construct for task operations */
-static struct task_struct *hvcs_task;
-
-/*
- * We allocate this for the use of all of the hvcs_structs when they fetch
- * partner info.
- */
-static unsigned long *hvcs_pi_buff;
-
-static spinlock_t hvcs_pi_lock;
-
-/* One vty-server per hvcs_struct */
-struct hvcs_struct {
- spinlock_t lock;
-
- /*
- * This index identifies this hvcs device as the complement to a
- * specific tty index.
- */
- unsigned int index;
-
- struct tty_struct *tty;
- unsigned int open_count;
-
- /*
- * Used to tell the driver kernel_thread what operations need to take
- * place upon this hvcs_struct instance.
- */
- int todo_mask;
-
- /*
- * This buffer is required so that when hvcs_write_room() reports that
- * it can send HVCS_BUFF_LEN characters that it will buffer the full
- * HVCS_BUFF_LEN characters if need be. This is essential for opost
- * writes since they do not do high level buffering and expect to be
- * able to send what the driver commits to sending buffering
- * [e.g. tab to space conversions in n_tty.c opost()].
- */
- char buffer[HVCS_BUFF_LEN];
- int chars_in_buffer;
-
- /*
- * Any variable below the kobject is valid before a tty is connected and
- * stays valid after the tty is disconnected. These shouldn't be
- * whacked until the koject refcount reaches zero though some entries
- * may be changed via sysfs initiatives.
- */
- struct kobject kobj; /* ref count & hvcs_struct lifetime */
- int connected; /* is the vty-server currently connected to a vty? */
- unsigned int p_unit_address; /* partner unit address */
- unsigned int p_partition_ID; /* partner partition ID */
- char p_location_code[CLC_LENGTH];
- struct list_head next; /* list management */
- struct vio_dev *vdev;
-};
-
-/* Required to back map a kobject to its containing object */
-#define from_kobj(kobj) container_of(kobj, struct hvcs_struct, kobj)
-
-static struct list_head hvcs_structs = LIST_HEAD_INIT(hvcs_structs);
-static spinlock_t hvcs_structs_lock;
-
-static void hvcs_unthrottle(struct tty_struct *tty);
-static void hvcs_throttle(struct tty_struct *tty);
-static irqreturn_t hvcs_handle_interrupt(int irq, void *dev_instance,
- struct pt_regs *regs);
-
-static int hvcs_write(struct tty_struct *tty, int from_user,
- const unsigned char *buf, int count);
-static int hvcs_write_room(struct tty_struct *tty);
-static int hvcs_chars_in_buffer(struct tty_struct *tty);
-
-static int hvcs_has_pi(struct hvcs_struct *hvcsd);
-static void hvcs_set_pi(struct hvcs_partner_info *pi,
- struct hvcs_struct *hvcsd);
-static int hvcs_get_pi(struct hvcs_struct *hvcsd);
-static int hvcs_rescan_devices_list(void);
-
-static int hvcs_partner_connect(struct hvcs_struct *hvcsd);
-static void hvcs_partner_free(struct hvcs_struct *hvcsd);
-
-static int hvcs_enable_device(struct hvcs_struct *hvcsd,
- uint32_t unit_address, unsigned int irq, struct vio_dev *dev);
-static void hvcs_final_close(struct hvcs_struct *hvcsd);
-
-static void destroy_hvcs_struct(struct kobject *kobj);
-static int hvcs_open(struct tty_struct *tty, struct file *filp);
-static void hvcs_close(struct tty_struct *tty, struct file *filp);
-static void hvcs_hangup(struct tty_struct * tty);
-
-static void hvcs_create_device_attrs(struct hvcs_struct *hvcsd);
-static void hvcs_remove_device_attrs(struct vio_dev *vdev);
-static void hvcs_create_driver_attrs(void);
-static void hvcs_remove_driver_attrs(void);
-
-static int __devinit hvcs_probe(struct vio_dev *dev,
- const struct vio_device_id *id);
-static int __devexit hvcs_remove(struct vio_dev *dev);
-static int __init hvcs_module_init(void);
-static void __exit hvcs_module_exit(void);
-
-#define HVCS_SCHED_READ 0x00000001
-#define HVCS_QUICK_READ 0x00000002
-#define HVCS_TRY_WRITE 0x00000004
-#define HVCS_READ_MASK (HVCS_SCHED_READ | HVCS_QUICK_READ)
-
-static void hvcs_kick(void)
-{
- hvcs_kicked = 1;
- wmb();
- wake_up_process(hvcs_task);
-}
-
-static void hvcs_unthrottle(struct tty_struct *tty)
-{
- struct hvcs_struct *hvcsd = tty->driver_data;
- unsigned long flags;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- hvcsd->todo_mask |= HVCS_SCHED_READ;
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- hvcs_kick();
-}
-
-static void hvcs_throttle(struct tty_struct *tty)
-{
- struct hvcs_struct *hvcsd = tty->driver_data;
- unsigned long flags;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- vio_disable_interrupts(hvcsd->vdev);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-}
-
-/*
- * If the device is being removed we don't have to worry about this interrupt
- * handler taking any further interrupts because they are disabled which means
- * the hvcs_struct will always be valid in this handler.
- */
-static irqreturn_t hvcs_handle_interrupt(int irq, void *dev_instance,
- struct pt_regs *regs)
-{
- struct hvcs_struct *hvcsd = dev_instance;
- unsigned long flags;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- vio_disable_interrupts(hvcsd->vdev);
- hvcsd->todo_mask |= HVCS_SCHED_READ;
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- hvcs_kick();
-
- return IRQ_HANDLED;
-}
-
-/* This function must be called with the hvcsd->lock held */
-static void hvcs_try_write(struct hvcs_struct *hvcsd)
-{
- unsigned int unit_address = hvcsd->vdev->unit_address;
- struct tty_struct *tty = hvcsd->tty;
- int sent;
-
- if (hvcsd->todo_mask & HVCS_TRY_WRITE) {
- /* won't send partial writes */
- sent = hvc_put_chars(unit_address,
- &hvcsd->buffer[0],
- hvcsd->chars_in_buffer );
- if (sent > 0) {
- hvcsd->chars_in_buffer = 0;
- wmb();
- hvcsd->todo_mask &= ~(HVCS_TRY_WRITE);
- wmb();
-
- /*
- * We are still obligated to deliver the data to the
- * hypervisor even if the tty has been closed because
- * we commited to delivering it. But don't try to wake
- * a non-existent tty.
- */
- if (tty) {
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP))
- && tty->ldisc.write_wakeup)
- (tty->ldisc.write_wakeup) (tty);
- wake_up_interruptible(&tty->write_wait);
- }
- }
- }
-}
-
-static int hvcs_io(struct hvcs_struct *hvcsd)
-{
- unsigned int unit_address;
- struct tty_struct *tty;
- char buf[HVCS_BUFF_LEN] __ALIGNED__;
- unsigned long flags;
- int got;
- int i;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
-
- unit_address = hvcsd->vdev->unit_address;
- tty = hvcsd->tty;
-
- hvcs_try_write(hvcsd);
-
- if (!tty || test_bit(TTY_THROTTLED, &tty->flags)) {
- hvcsd->todo_mask &= ~(HVCS_READ_MASK);
- goto bail;
- } else if (!(hvcsd->todo_mask & (HVCS_READ_MASK)))
- goto bail;
-
- /* remove the read masks */
- hvcsd->todo_mask &= ~(HVCS_READ_MASK);
-
- if ((tty->flip.count + HVCS_BUFF_LEN) < TTY_FLIPBUF_SIZE) {
- got = hvc_get_chars(unit_address,
- &buf[0],
- HVCS_BUFF_LEN);
- for (i=0;got && i<got;i++)
- tty_insert_flip_char(tty, buf[i], TTY_NORMAL);
- }
-
- /* Give the TTY time to process the data we just sent. */
- if (got)
- hvcsd->todo_mask |= HVCS_QUICK_READ;
-
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- if (tty->flip.count) {
- /* This is synch because tty->low_latency == 1 */
- tty_flip_buffer_push(tty);
- }
-
- if (!got) {
- /* Do this _after_ the flip_buffer_push */
- spin_lock_irqsave(&hvcsd->lock, flags);
- vio_enable_interrupts(hvcsd->vdev);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- }
-
- return hvcsd->todo_mask;
-
- bail:
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- return hvcsd->todo_mask;
-}
-
-static int khvcsd(void *unused)
-{
- struct hvcs_struct *hvcsd = NULL;
- struct list_head *element;
- struct list_head *safe_temp;
- int hvcs_todo_mask;
- unsigned long structs_flags;
-
- __set_current_state(TASK_RUNNING);
-
- do {
- hvcs_todo_mask = 0;
- hvcs_kicked = 0;
- wmb();
-
- spin_lock_irqsave(&hvcs_structs_lock, structs_flags);
- list_for_each_safe(element, safe_temp, &hvcs_structs) {
- hvcsd = list_entry(element, struct hvcs_struct, next);
- hvcs_todo_mask |= hvcs_io(hvcsd);
- }
- spin_unlock_irqrestore(&hvcs_structs_lock, structs_flags);
-
- /*
- * If any of the hvcs adapters want to try a write or quick read
- * don't schedule(), yield a smidgen then execute the hvcs_io
- * thread again for those that want the write.
- */
- if (hvcs_todo_mask & (HVCS_TRY_WRITE | HVCS_QUICK_READ)) {
- yield();
- continue;
- }
-
- set_current_state(TASK_INTERRUPTIBLE);
- if (!hvcs_kicked)
- schedule();
- __set_current_state(TASK_RUNNING);
- } while (!kthread_should_stop());
-
- return 0;
-}
-
-static struct vio_device_id hvcs_driver_table[] __devinitdata= {
- {"serial-server", "hvterm2"},
- { 0, }
-};
-MODULE_DEVICE_TABLE(vio, hvcs_driver_table);
-
-/* callback when the kboject ref count reaches zero */
-static void destroy_hvcs_struct(struct kobject *kobj)
-{
- struct hvcs_struct *hvcsd = from_kobj(kobj);
- struct vio_dev *vdev;
- unsigned long flags;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
-
- /* the list_del poisons the pointers */
- list_del(&(hvcsd->next));
-
- if (hvcsd->connected == 1) {
- hvcs_partner_free(hvcsd);
- printk(KERN_INFO "HVCS: Closed vty-server@%X and"
- " partner vty@%X:%d connection.\n",
- hvcsd->vdev->unit_address,
- hvcsd->p_unit_address,
- (unsigned int)hvcsd->p_partition_ID);
- }
- printk(KERN_INFO "HVCS: Destroyed hvcs_struct for vty-server@%X.\n",
- hvcsd->vdev->unit_address);
-
- vdev = hvcsd->vdev;
- hvcsd->vdev = NULL;
-
- hvcsd->p_unit_address = 0;
- hvcsd->p_partition_ID = 0;
- memset(&hvcsd->p_location_code[0], 0x00, CLC_LENGTH);
-
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-
- hvcs_remove_device_attrs(vdev);
-
- kfree(hvcsd);
-}
-
-/* This function must be called with hvcsd->lock held. */
-static void hvcs_final_close(struct hvcs_struct *hvcsd)
-{
- vio_disable_interrupts(hvcsd->vdev);
- free_irq(hvcsd->vdev->irq, hvcsd);
-
- hvcsd->todo_mask = 0;
-
- /* These two may be redundant if the operation was a close. */
- if (hvcsd->tty) {
- hvcsd->tty->driver_data = NULL;
- hvcsd->tty = NULL;
- }
-
- hvcsd->open_count = 0;
-
- memset(&hvcsd->buffer[0], 0x00, HVCS_BUFF_LEN);
- hvcsd->chars_in_buffer = 0;
-}
-
-static struct kobj_type hvcs_kobj_type = {
- .release = destroy_hvcs_struct,
-};
-
-static int __devinit hvcs_probe(
- struct vio_dev *dev,
- const struct vio_device_id *id)
-{
- struct hvcs_struct *hvcsd;
- unsigned long structs_flags;
-
- if (!dev || !id) {
- printk(KERN_ERR "HVCS: probed with invalid parameter.\n");
- return -EPERM;
- }
-
- hvcsd = kmalloc(sizeof(*hvcsd), GFP_KERNEL);
- if (!hvcsd) {
- return -ENODEV;
- }
-
- /* hvcsd->tty is zeroed out with the memset */
- memset(hvcsd, 0x00, sizeof(*hvcsd));
-
- hvcsd->lock = SPIN_LOCK_UNLOCKED;
- /* Automatically incs the refcount the first time */
- kobject_init(&hvcsd->kobj);
- /* Set up the callback for terminating the hvcs_struct's life */
- hvcsd->kobj.ktype = &hvcs_kobj_type;
-
- hvcsd->vdev = dev;
- dev->dev.driver_data = hvcsd;
-
- hvcsd->index = ++hvcs_struct_count;
- hvcsd->chars_in_buffer = 0;
- hvcsd->todo_mask = 0;
- hvcsd->connected = 0;
-
- /*
- * This will populate the hvcs_struct's partner info fields for the
- * first time.
- */
- if (hvcs_get_pi(hvcsd)) {
- printk(KERN_ERR "HVCS: Failed to fetch partner"
- " info for vty-server@%X on device probe.\n",
- hvcsd->vdev->unit_address);
- }
-
- /*
- * If a user app opens a tty that corresponds to this vty-server before
- * the hvcs_struct has been added to the devices list then the user app
- * will get -ENODEV.
- */
-
- spin_lock_irqsave(&hvcs_structs_lock, structs_flags);
-
- list_add_tail(&(hvcsd->next), &hvcs_structs);
-
- spin_unlock_irqrestore(&hvcs_structs_lock, structs_flags);
-
- hvcs_create_device_attrs(hvcsd);
-
- printk(KERN_INFO "HVCS: Added vty-server@%X.\n", dev->unit_address);
-
- /*
- * DON'T enable interrupts here because there is no user to receive the
- * data.
- */
- return 0;
-}
-
-static int __devexit hvcs_remove(struct vio_dev *dev)
-{
- struct hvcs_struct *hvcsd = dev->dev.driver_data;
- unsigned long flags;
- struct kobject *kobjp;
- struct tty_struct *tty;
-
- if (!hvcsd)
- return -ENODEV;
-
- /* By this time the vty-server won't be getting any more interrups */
-
- spin_lock_irqsave(&hvcsd->lock, flags);
-
- tty = hvcsd->tty;
-
- kobjp = &hvcsd->kobj;
-
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-
- /*
- * Let the last holder of this object cause it to be removed, which
- * would probably be tty_hangup below.
- */
- kobject_put (kobjp);
-
- /*
- * The hangup is a scheduled function which will auto chain call
- * hvcs_hangup. The tty should always be valid at this time unless a
- * simultaneous tty close already cleaned up the hvcs_struct.
- */
- if (tty)
- tty_hangup(tty);
-
- printk(KERN_INFO "HVCS: vty-server@%X removed from the"
- " vio bus.\n", dev->unit_address);
- return 0;
-};
-
-static struct vio_driver hvcs_vio_driver = {
- .name = hvcs_driver_name,
- .id_table = hvcs_driver_table,
- .probe = hvcs_probe,
- .remove = hvcs_remove,
-};
-
-/* Only called from hvcs_get_pi please */
-static void hvcs_set_pi(struct hvcs_partner_info *pi, struct hvcs_struct *hvcsd)
-{
- int clclength;
-
- hvcsd->p_unit_address = pi->unit_address;
- hvcsd->p_partition_ID = pi->partition_ID;
- clclength = strlen(&pi->location_code[0]);
- if (clclength > CLC_LENGTH - 1)
- clclength = CLC_LENGTH - 1;
-
- /* copy the null-term char too */
- strncpy(&hvcsd->p_location_code[0],
- &pi->location_code[0], clclength + 1);
-}
-
-/*
- * Traverse the list and add the partner info that is found to the hvcs_struct
- * struct entry. NOTE: At this time I know that partner info will return a
- * single entry but in the future there may be multiple partner info entries per
- * vty-server and you'll want to zero out that list and reset it. If for some
- * reason you have an old version of this driver but there IS more than one
- * partner info then hvcsd->p_* will hold the last partner info data from the
- * firmware query. A good way to update this code would be to replace the three
- * partner info fields in hvcs_struct with a list of hvcs_partner_info
- * instances.
- *
- * This function must be called with the hvcsd->lock held.
- */
-static int hvcs_get_pi(struct hvcs_struct *hvcsd)
-{
- /* struct hvcs_partner_info *head_pi = NULL; */
- struct hvcs_partner_info *pi = NULL;
- unsigned int unit_address = hvcsd->vdev->unit_address;
- struct list_head head;
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave(&hvcs_pi_lock, flags);
- if (!hvcs_pi_buff) {
- spin_unlock_irqrestore(&hvcs_pi_lock, flags);
- return -EFAULT;
- }
- retval = hvcs_get_partner_info(unit_address, &head, hvcs_pi_buff);
- spin_unlock_irqrestore(&hvcs_pi_lock, flags);
- if (retval) {
- printk(KERN_ERR "HVCS: Failed to fetch partner"
- " info for vty-server@%x.\n", unit_address);
- return retval;
- }
-
- /* nixes the values if the partner vty went away */
- hvcsd->p_unit_address = 0;
- hvcsd->p_partition_ID = 0;
-
- list_for_each_entry(pi, &head, node)
- hvcs_set_pi(pi, hvcsd);
-
- hvcs_free_partner_info(&head);
- return 0;
-}
-
-/*
- * This function is executed by the driver "rescan" sysfs entry. It shouldn't
- * be executed elsewhere, in order to prevent deadlock issues.
- */
-static int hvcs_rescan_devices_list(void)
-{
- struct hvcs_struct *hvcsd = NULL;
- unsigned long flags;
- unsigned long structs_flags;
-
- spin_lock_irqsave(&hvcs_structs_lock, structs_flags);
-
- list_for_each_entry(hvcsd, &hvcs_structs, next) {
- spin_lock_irqsave(&hvcsd->lock, flags);
- hvcs_get_pi(hvcsd);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- }
-
- spin_unlock_irqrestore(&hvcs_structs_lock, structs_flags);
-
- return 0;
-}
-
-/*
- * Farm this off into its own function because it could be more complex once
- * multiple partners support is added. This function should be called with
- * the hvcsd->lock held.
- */
-static int hvcs_has_pi(struct hvcs_struct *hvcsd)
-{
- if ((!hvcsd->p_unit_address) || (!hvcsd->p_partition_ID))
- return 0;
- return 1;
-}
-
-/*
- * NOTE: It is possible that the super admin removed a partner vty and then
- * added a different vty as the new partner.
- *
- * This function must be called with the hvcsd->lock held.
- */
-static int hvcs_partner_connect(struct hvcs_struct *hvcsd)
-{
- int retval;
- unsigned int unit_address = hvcsd->vdev->unit_address;
-
- /*
- * If there wasn't any pi when the device was added it doesn't meant
- * there isn't any now. This driver isn't notified when a new partner
- * vty is added to a vty-server so we discover changes on our own.
- * Please see comments in hvcs_register_connection() for justification
- * of this bizarre code.
- */
- retval = hvcs_register_connection(unit_address,
- hvcsd->p_partition_ID,
- hvcsd->p_unit_address);
- if (!retval) {
- hvcsd->connected = 1;
- return 0;
- } else if (retval != -EINVAL)
- return retval;
-
- /*
- * As per the spec re-get the pi and try again if -EINVAL after the
- * first connection attempt.
- */
- if (hvcs_get_pi(hvcsd))
- return -ENOMEM;
-
- if (!hvcs_has_pi(hvcsd))
- return -ENODEV;
-
- retval = hvcs_register_connection(unit_address,
- hvcsd->p_partition_ID,
- hvcsd->p_unit_address);
- if (retval != -EINVAL) {
- hvcsd->connected = 1;
- return retval;
- }
-
- /*
- * EBUSY is the most likely scenario though the vty could have been
- * removed or there really could be an hcall error due to the parameter
- * data but thanks to ambiguous firmware return codes we can't really
- * tell.
- */
- printk(KERN_INFO "HVCS: vty-server or partner"
- " vty is busy. Try again later.\n");
- return -EBUSY;
-}
-
-/* This function must be called with the hvcsd->lock held */
-static void hvcs_partner_free(struct hvcs_struct *hvcsd)
-{
- int retval;
- do {
- retval = hvcs_free_connection(hvcsd->vdev->unit_address);
- } while (retval == -EBUSY);
- hvcsd->connected = 0;
-}
-
-/* This helper function must be called WITHOUT the hvcsd->lock held */
-static int hvcs_enable_device(struct hvcs_struct *hvcsd, uint32_t unit_address,
- unsigned int irq, struct vio_dev *vdev)
-{
- unsigned long flags;
-
- /*
- * It is possible that the vty-server was removed between the time that
- * the conn was registered and now.
- */
- if (!request_irq(irq, &hvcs_handle_interrupt,
- SA_INTERRUPT, "ibmhvcs", hvcsd)) {
- /*
- * It is possible the vty-server was removed after the irq was
- * requested but before we have time to enable interrupts.
- */
- if (vio_enable_interrupts(vdev) == H_Success)
- return 0;
- else {
- printk(KERN_ERR "HVCS: int enable failed for"
- " vty-server@%X.\n", unit_address);
- free_irq(irq, hvcsd);
- }
- } else
- printk(KERN_ERR "HVCS: irq req failed for"
- " vty-server@%X.\n", unit_address);
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- hvcs_partner_free(hvcsd);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-
- return -ENODEV;
-
-}
-
-/*
- * This always increments the kobject ref count if the call is successful.
- * Please remember to dec when you are done with the instance.
- *
- * NOTICE: Do NOT hold either the hvcs_struct.lock or hvcs_structs_lock when
- * calling this function or you will get deadlock.
- */
-struct hvcs_struct *hvcs_get_by_index(int index)
-{
- struct hvcs_struct *hvcsd = NULL;
- struct list_head *element;
- struct list_head *safe_temp;
- unsigned long flags;
- unsigned long structs_flags;
-
- spin_lock_irqsave(&hvcs_structs_lock, structs_flags);
- /* We can immediately discard OOB requests */
- if (index >= 0 && index < HVCS_MAX_SERVER_ADAPTERS) {
- list_for_each_safe(element, safe_temp, &hvcs_structs) {
- hvcsd = list_entry(element, struct hvcs_struct, next);
- spin_lock_irqsave(&hvcsd->lock, flags);
- if (hvcsd->index == index) {
- kobject_get(&hvcsd->kobj);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- spin_unlock_irqrestore(&hvcs_structs_lock,
- structs_flags);
- return hvcsd;
- }
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- }
- hvcsd = NULL;
- }
-
- spin_unlock_irqrestore(&hvcs_structs_lock, structs_flags);
- return hvcsd;
-}
-
-/*
- * This is invoked via the tty_open interface when a user app connects to the
- * /dev node.
- */
-static int hvcs_open(struct tty_struct *tty, struct file *filp)
-{
- struct hvcs_struct *hvcsd = NULL;
- int retval = 0;
- unsigned long flags;
- unsigned int irq;
- struct vio_dev *vdev;
- unsigned long unit_address;
-
- if (tty->driver_data)
- goto fast_open;
-
- /*
- * Is there a vty-server that shares the same index?
- * This function increments the kobject index.
- */
- if (!(hvcsd = hvcs_get_by_index(tty->index))) {
- printk(KERN_WARNING "HVCS: open failed, no index.\n");
- return -ENODEV;
- }
-
- spin_lock_irqsave(&hvcsd->lock, flags);
-
- if (hvcsd->connected == 0)
- if ((retval = hvcs_partner_connect(hvcsd)))
- goto error_release;
-
- hvcsd->open_count = 1;
- hvcsd->tty = tty;
- tty->driver_data = hvcsd;
-
- /*
- * Set this driver to low latency so that we actually have a chance at
- * catching a throttled TTY after we flip_buffer_push. Otherwise the
- * flush_to_async may not execute until after the kernel_thread has
- * yielded and resumed the next flip_buffer_push resulting in data
- * loss.
- */
- tty->low_latency = 1;
-
- memset(&hvcsd->buffer[0], 0x3F, HVCS_BUFF_LEN);
-
- /*
- * Save these in the spinlock for the enable operations that need them
- * outside of the spinlock.
- */
- irq = hvcsd->vdev->irq;
- vdev = hvcsd->vdev;
- unit_address = hvcsd->vdev->unit_address;
-
- hvcsd->todo_mask |= HVCS_SCHED_READ;
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-
- /*
- * This must be done outside of the spinlock because it requests irqs
- * and will grab the spinlcok and free the connection if it fails.
- */
- if ((hvcs_enable_device(hvcsd, unit_address, irq, vdev))) {
- kobject_put(&hvcsd->kobj);
- printk(KERN_WARNING "HVCS: enable device failed.\n");
- return -ENODEV;
- }
-
- goto open_success;
-
-fast_open:
- hvcsd = tty->driver_data;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- if (!kobject_get(&hvcsd->kobj)) {
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- printk(KERN_ERR "HVCS: Kobject of open"
- " hvcs doesn't exist.\n");
- return -EFAULT; /* Is this the right return value? */
- }
-
- hvcsd->open_count++;
-
- hvcsd->todo_mask |= HVCS_SCHED_READ;
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-open_success:
- hvcs_kick();
-
- printk(KERN_INFO "HVCS: vty-server@%X opened.\n",
- hvcsd->vdev->unit_address );
-
- return 0;
-
-error_release:
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- kobject_put(&hvcsd->kobj);
-
- printk(KERN_WARNING "HVCS: HVCS partner connect failed.\n");
- return retval;
-}
-
-static void hvcs_close(struct tty_struct *tty, struct file *filp)
-{
- struct hvcs_struct *hvcsd;
- unsigned long flags;
- struct kobject *kobjp;
-
- /*
- * Is someone trying to close the file associated with this device after
- * we have hung up? If so tty->driver_data wouldn't be valid.
- */
- if (tty_hung_up_p(filp))
- return;
-
- /*
- * No driver_data means that this close was probably issued after a
- * failed hvcs_open by the tty layer's release_dev() api and we can just
- * exit cleanly.
- */
- if (!tty->driver_data)
- return;
-
- hvcsd = tty->driver_data;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- if (--hvcsd->open_count == 0) {
-
- /*
- * This line is important because it tells hvcs_open that this
- * device needs to be re-configured the next time hvcs_open is
- * called.
- */
- hvcsd->tty->driver_data = NULL;
-
- /*
- * NULL this early so that the kernel_thread doesn't try to
- * execute any operations on the TTY even though it is obligated
- * to deliver any pending I/O to the hypervisor.
- */
- hvcsd->tty = NULL;
-
- /*
- * Block the close until all the buffered data has been
- * delivered.
- */
- while(hvcsd->chars_in_buffer) {
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-
- /*
- * Give the kernel thread the hvcs_struct so that it can
- * try to deliver the remaining data but block the close
- * operation by spinning in this function so that other
- * tty operations have to wait.
- */
- yield();
- spin_lock_irqsave(&hvcsd->lock, flags);
- }
-
- hvcs_final_close(hvcsd);
-
- } else if (hvcsd->open_count < 0) {
- printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
- " is missmanaged.\n",
- hvcsd->vdev->unit_address, hvcsd->open_count);
- }
- kobjp = &hvcsd->kobj;
-
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-
- kobject_put(kobjp);
-}
-
-static void hvcs_hangup(struct tty_struct * tty)
-{
- struct hvcs_struct *hvcsd = tty->driver_data;
- unsigned long flags;
- int temp_open_count;
- struct kobject *kobjp;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- /* Preserve this so that we know how many kobject refs to put */
- temp_open_count = hvcsd->open_count;
-
- /*
- * Don't kobject put inside the spinlock because the destruction
- * callback may use the spinlock and it may get called before the
- * spinlock has been released. Get a pointer to the kobject and
- * kobject_put on that instead.
- */
- kobjp = &hvcsd->kobj;
-
- /* Calling this will drop any buffered data on the floor. */
- hvcs_final_close(hvcsd);
-
- spin_unlock_irqrestore(&hvcsd->lock, flags);
-
- /*
- * We need to kobject_put() for every open_count we have since the
- * tty_hangup() function doesn't invoke a close per open connection on a
- * non-console device.
- */
- while(temp_open_count) {
- --temp_open_count;
- /*
- * The final put will trigger destruction of the hvcs_struct.
- * NOTE: If this hangup was signaled from user space then the
- * final put will never happen.
- */
- kobject_put(kobjp);
- }
-}
-
-/*
- * NOTE: This is almost always from_user since user level apps interact with the
- * /dev nodes. I'm trusting that if hvcs_write gets called and interrupted by
- * hvcs_remove (which removes the target device and executes tty_hangup()) that
- * tty_hangup will allow hvcs_write time to complete execution before it
- * terminates our device.
- */
-static int hvcs_write(struct tty_struct *tty, int from_user,
- const unsigned char *buf, int count)
-{
- struct hvcs_struct *hvcsd = tty->driver_data;
- unsigned int unit_address;
- unsigned char *charbuf;
- unsigned long flags;
- int total_sent = 0;
- int tosend = 0;
- int result = 0;
-
- /*
- * If they don't check the return code off of their open they may
- * attempt this even if there is no connected device.
- */
- if (!hvcsd)
- return -ENODEV;
-
- /* Reasonable size to prevent user level flooding */
- if (count > HVCS_MAX_FROM_USER) {
- printk(KERN_WARNING "HVCS write: count being truncated to"
- " HVCS_MAX_FROM_USER.\n");
- count = HVCS_MAX_FROM_USER;
- }
-
- if (!from_user)
- charbuf = (unsigned char *)buf;
- else {
- charbuf = kmalloc(count, GFP_KERNEL);
- if (!charbuf) {
- printk(KERN_WARNING "HVCS: write -ENOMEM.\n");
- return -ENOMEM;
- }
-
- if (copy_from_user(charbuf, buf, count)) {
- kfree(charbuf);
- printk(KERN_WARNING "HVCS: write -EFAULT.\n");
- return -EFAULT;
- }
- }
-
- spin_lock_irqsave(&hvcsd->lock, flags);
-
- /*
- * Somehow an open succedded but the device was removed or the
- * connection terminated between the vty-server and partner vty during
- * the middle of a write operation? This is a crummy place to do this
- * but we want to keep it all in the spinlock.
- */
- if (hvcsd->open_count <= 0) {
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- if (from_user)
- kfree(charbuf);
- return -ENODEV;
- }
-
- unit_address = hvcsd->vdev->unit_address;
-
- while (count > 0) {
- tosend = min(count, (HVCS_BUFF_LEN - hvcsd->chars_in_buffer));
- /*
- * No more space, this probably means that the last call to
- * hvcs_write() didn't succeed and the buffer was filled up.
- */
- if (!tosend)
- break;
-
- memcpy(&hvcsd->buffer[hvcsd->chars_in_buffer],
- &charbuf[total_sent],
- tosend);
-
- hvcsd->chars_in_buffer += tosend;
-
- result = 0;
-
- /*
- * If this is true then we don't want to try writing to the
- * hypervisor because that is the kernel_threads job now. We'll
- * just add to the buffer.
- */
- if (!(hvcsd->todo_mask & HVCS_TRY_WRITE))
- /* won't send partial writes */
- result = hvc_put_chars(unit_address,
- &hvcsd->buffer[0],
- hvcsd->chars_in_buffer);
-
- /*
- * Since we know we have enough room in hvcsd->buffer for
- * tosend we record that it was sent regardless of whether the
- * hypervisor actually took it because we have it buffered.
- */
- total_sent+=tosend;
- count-=tosend;
- if (result == 0) {
- hvcsd->todo_mask |= HVCS_TRY_WRITE;
- hvcs_kick();
- break;
- }
-
- hvcsd->chars_in_buffer = 0;
- /*
- * Test after the chars_in_buffer reset otherwise this could
- * deadlock our writes if hvc_put_chars fails.
- */
- if (result < 0)
- break;
- }
-
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- if (from_user)
- kfree(charbuf);
-
- if (result == -1)
- return -EIO;
- else
- return total_sent;
-}
-
-/*
- * This is really asking how much can we guarentee that we can send or that we
- * absolutely WILL BUFFER if we can't send it. This driver MUST honor the
- * return value, hence the reason for hvcs_struct buffering.
- */
-static int hvcs_write_room(struct tty_struct *tty)
-{
- struct hvcs_struct *hvcsd = tty->driver_data;
- unsigned long flags;
- int retval;
-
- if (!hvcsd || hvcsd->open_count <= 0)
- return 0;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- retval = HVCS_BUFF_LEN - hvcsd->chars_in_buffer;
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- return retval;
-}
-
-static int hvcs_chars_in_buffer(struct tty_struct *tty)
-{
- struct hvcs_struct *hvcsd = tty->driver_data;
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- retval = hvcsd->chars_in_buffer;
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- return retval;
-}
-
-static struct tty_operations hvcs_ops = {
- .open = hvcs_open,
- .close = hvcs_close,
- .hangup = hvcs_hangup,
- .write = hvcs_write,
- .write_room = hvcs_write_room,
- .chars_in_buffer = hvcs_chars_in_buffer,
- .unthrottle = hvcs_unthrottle,
- .throttle = hvcs_throttle,
-};
-
-static int __init hvcs_module_init(void)
-{
- int rc;
- int num_ttys_to_alloc;
-
- printk(KERN_INFO "Initializing %s\n", hvcs_driver_string);
-
- /* Has the user specified an overload with an insmod param? */
- if (hvcs_parm_num_devs <= 0 ||
- (hvcs_parm_num_devs > HVCS_MAX_SERVER_ADAPTERS)) {
- num_ttys_to_alloc = HVCS_DEFAULT_SERVER_ADAPTERS;
- } else
- num_ttys_to_alloc = hvcs_parm_num_devs;
-
- hvcs_tty_driver = alloc_tty_driver(num_ttys_to_alloc);
- if (!hvcs_tty_driver)
- return -ENOMEM;
-
- hvcs_tty_driver->owner = THIS_MODULE;
-
- hvcs_tty_driver->driver_name = hvcs_driver_name;
- hvcs_tty_driver->name = hvcs_device_node;
-
- /*
- * We'll let the system assign us a major number, indicated by leaving
- * it blank.
- */
-
- hvcs_tty_driver->minor_start = HVCS_MINOR_START;
- hvcs_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM;
-
- /*
- * We role our own so that we DONT ECHO. We can't echo because the
- * device we are connecting to already echoes by default and this would
- * throw us into a horrible recursive echo-echo-echo loop.
- */
- hvcs_tty_driver->init_termios = hvcs_tty_termios;
- hvcs_tty_driver->flags = TTY_DRIVER_REAL_RAW;
-
- tty_set_operations(hvcs_tty_driver, &hvcs_ops);
-
- /*
- * The following call will result in sysfs entries that denote the
- * dynamically assigned major and minor numbers for our devices.
- */
- if (tty_register_driver(hvcs_tty_driver)) {
- printk(KERN_ERR "HVCS: registration "
- " as a tty driver failed.\n");
- put_tty_driver(hvcs_tty_driver);
- return rc;
- }
-
- hvcs_structs_lock = SPIN_LOCK_UNLOCKED;
-
- hvcs_pi_lock = SPIN_LOCK_UNLOCKED;
- hvcs_pi_buff = kmalloc(PAGE_SIZE, GFP_KERNEL);
-
- hvcs_task = kthread_run(khvcsd, NULL, "khvcsd");
- if (IS_ERR(hvcs_task)) {
- printk("khvcsd creation failed. Driver not loaded.\n");
- kfree(hvcs_pi_buff);
- put_tty_driver(hvcs_tty_driver);
- return -EIO;
- }
-
- rc = vio_register_driver(&hvcs_vio_driver);
-
- /*
- * This needs to be done AFTER the vio_register_driver() call or else
- * the kobjects won't be initialized properly.
- */
- hvcs_create_driver_attrs();
-
- printk(KERN_INFO "HVCS: driver module inserted.\n");
-
- return rc;
-}
-
-static void __exit hvcs_module_exit(void)
-{
- unsigned long flags;
-
- /*
- * This driver receives hvcs_remove callbacks for each device upon
- * module removal.
- */
-
- /*
- * This synchronous operation will wake the khvcsd kthread if it is
- * asleep and will return when khvcsd has terminated.
- */
- kthread_stop(hvcs_task);
-
- spin_lock_irqsave(&hvcs_pi_lock, flags);
- kfree(hvcs_pi_buff);
- hvcs_pi_buff = NULL;
- spin_unlock_irqrestore(&hvcs_pi_lock, flags);
-
- hvcs_remove_driver_attrs();
-
- vio_unregister_driver(&hvcs_vio_driver);
-
- tty_unregister_driver(hvcs_tty_driver);
-
- put_tty_driver(hvcs_tty_driver);
-
- printk(KERN_INFO "HVCS: driver module removed.\n");
-}
-
-module_init(hvcs_module_init);
-module_exit(hvcs_module_exit);
-
-static inline struct hvcs_struct *from_vio_dev(struct vio_dev *viod)
-{
- return viod->dev.driver_data;
-}
-/* The sysfs interface for the driver and devices */
-
-static ssize_t hvcs_partner_vtys_show(struct device *dev, char *buf)
-{
- struct vio_dev *viod = to_vio_dev(dev);
- struct hvcs_struct *hvcsd = from_vio_dev(viod);
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- retval = sprintf(buf, "%X\n", hvcsd->p_unit_address);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- return retval;
-}
-static DEVICE_ATTR(partner_vtys, S_IRUGO, hvcs_partner_vtys_show, NULL);
-
-static ssize_t hvcs_partner_clcs_show(struct device *dev, char *buf)
-{
- struct vio_dev *viod = to_vio_dev(dev);
- struct hvcs_struct *hvcsd = from_vio_dev(viod);
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- retval = sprintf(buf, "%s\n", &hvcsd->p_location_code[0]);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- return retval;
-}
-static DEVICE_ATTR(partner_clcs, S_IRUGO, hvcs_partner_clcs_show, NULL);
-
-static ssize_t hvcs_current_vty_store(struct device *dev, const char * buf,
- size_t count)
-{
- /*
- * Don't need this feature at the present time because firmware doesn't
- * yet support multiple partners.
- */
- printk(KERN_INFO "HVCS: Denied current_vty change: -EPERM.\n");
- return -EPERM;
-}
-
-static ssize_t hvcs_current_vty_show(struct device *dev, char *buf)
-{
- struct vio_dev *viod = to_vio_dev(dev);
- struct hvcs_struct *hvcsd = from_vio_dev(viod);
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- retval = sprintf(buf, "%s\n", &hvcsd->p_location_code[0]);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- return retval;
-}
-
-static DEVICE_ATTR(current_vty,
- S_IRUGO | S_IWUSR, hvcs_current_vty_show, hvcs_current_vty_store);
-
-static ssize_t hvcs_vterm_state_store(struct device *dev, const char *buf,
- size_t count)
-{
- struct vio_dev *viod = to_vio_dev(dev);
- struct hvcs_struct *hvcsd = from_vio_dev(viod);
- unsigned long flags;
-
- /* writing a '0' to this sysfs entry will result in the disconnect. */
- if (simple_strtol(buf, NULL, 0) != 0)
- return -EINVAL;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
-
- if (hvcsd->open_count > 0) {
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- printk(KERN_INFO "HVCS: vterm state unchanged. "
- "The hvcs device node is still in use.\n");
- return -EPERM;
- }
-
- if (hvcsd->connected == 0) {
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- printk(KERN_INFO "HVCS: vterm state unchanged. The"
- " vty-server is not connected to a vty.\n");
- return -EPERM;
- }
-
- hvcs_partner_free(hvcsd);
- printk(KERN_INFO "HVCS: Closed vty-server@%X and"
- " partner vty@%X:%d connection.\n",
- hvcsd->vdev->unit_address,
- hvcsd->p_unit_address,
- (unsigned int)hvcsd->p_partition_ID);
-
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- return count;
-}
-
-static ssize_t hvcs_vterm_state_show(struct device *dev, char *buf)
-{
- struct vio_dev *viod = to_vio_dev(dev);
- struct hvcs_struct *hvcsd = from_vio_dev(viod);
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave(&hvcsd->lock, flags);
- retval = sprintf(buf, "%d\n", hvcsd->connected);
- spin_unlock_irqrestore(&hvcsd->lock, flags);
- return retval;
-}
-static DEVICE_ATTR(vterm_state, S_IRUGO | S_IWUSR,
- hvcs_vterm_state_show, hvcs_vterm_state_store);
-
-static struct attribute *hvcs_attrs[] = {
- &dev_attr_partner_vtys.attr,
- &dev_attr_partner_clcs.attr,
- &dev_attr_current_vty.attr,
- &dev_attr_vterm_state.attr,
- NULL,
-};
-
-static struct attribute_group hvcs_attr_group = {
- .attrs = hvcs_attrs,
-};
-
-static void hvcs_create_device_attrs(struct hvcs_struct *hvcsd)
-{
- struct vio_dev *vdev = hvcsd->vdev;
- sysfs_create_group(&vdev->dev.kobj, &hvcs_attr_group);
-}
-
-static void hvcs_remove_device_attrs(struct vio_dev *vdev)
-{
- sysfs_remove_group(&vdev->dev.kobj, &hvcs_attr_group);
-}
-
-static ssize_t hvcs_rescan_show(struct device_driver *ddp, char *buf)
-{
- /* A 1 means it is updating, a 0 means it is done updating */
- return snprintf(buf, PAGE_SIZE, "%d\n", hvcs_rescan_status);
-}
-
-static ssize_t hvcs_rescan_store(struct device_driver *ddp, const char * buf,
- size_t count)
-{
- if ((simple_strtol(buf, NULL, 0) != 1)
- && (hvcs_rescan_status != 0))
- return -EINVAL;
-
- hvcs_rescan_status = 1;
- printk(KERN_INFO "HVCS: rescanning partner info for all"
- " vty-servers.\n");
- hvcs_rescan_devices_list();
- hvcs_rescan_status = 0;
- return count;
-}
-static DRIVER_ATTR(rescan,
- S_IRUGO | S_IWUSR, hvcs_rescan_show, hvcs_rescan_store);
-
-static void hvcs_create_driver_attrs(void)
-{
- struct device_driver *driverfs = &(hvcs_vio_driver.driver);
- driver_create_file(driverfs, &driver_attr_rescan);
-}
-
-static void hvcs_remove_driver_attrs(void)
-{
- struct device_driver *driverfs = &(hvcs_vio_driver.driver);
- driver_remove_file(driverfs, &driver_attr_rescan);
-}
+++ /dev/null
-/*
- * Driver for the SGS-Thomson M48T35 Timekeeper RAM chip
- *
- * Real Time Clock interface for Linux
- *
- * TODO: Implement periodic interrupts.
- *
- * Copyright (C) 2000 Silicon Graphics, Inc.
- * Written by Ulf Carlsson (ulfc@engr.sgi.com)
- *
- * Based on code written by Paul Gortmaker.
- *
- * This driver allows use of the real time clock (built into
- * nearly all computers) from user space. It exports the /dev/rtc
- * interface supporting various ioctl() and also the /proc/rtc
- * pseudo-file for status information.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#define RTC_VERSION "1.09b"
-
-#include <linux/bcd.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/miscdevice.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/rtc.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/smp_lock.h>
-
-#include <asm/m48t35.h>
-#include <asm/sn/ioc3.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/sn/klconfig.h>
-#include <asm/sn/sn0/ip27.h>
-#include <asm/sn/sn0/hub.h>
-#include <asm/sn/sn_private.h>
-
-static int rtc_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-
-static int rtc_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-
-static void get_rtc_time(struct rtc_time *rtc_tm);
-
-/*
- * Bits in rtc_status. (6 bits of room for future expansion)
- */
-
-#define RTC_IS_OPEN 0x01 /* means /dev/rtc is in use */
-#define RTC_TIMER_ON 0x02 /* missed irq timer active */
-
-static unsigned char rtc_status; /* bitmapped status byte. */
-static unsigned long rtc_freq; /* Current periodic IRQ rate */
-static struct m48t35_rtc *rtc;
-
-/*
- * If this driver ever becomes modularised, it will be really nice
- * to make the epoch retain its value across module reload...
- */
-
-static unsigned long epoch = 1970; /* year corresponding to 0x00 */
-
-static const unsigned char days_in_mo[] =
-{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-
-static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
-
- struct rtc_time wtime;
-
- switch (cmd) {
- case RTC_RD_TIME: /* Read the time/date from RTC */
- {
- get_rtc_time(&wtime);
- break;
- }
- case RTC_SET_TIME: /* Set the RTC */
- {
- struct rtc_time rtc_tm;
- unsigned char mon, day, hrs, min, sec, leap_yr;
- unsigned int yrs;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- if (copy_from_user(&rtc_tm, (struct rtc_time*)arg,
- sizeof(struct rtc_time)))
- return -EFAULT;
-
- yrs = rtc_tm.tm_year + 1900;
- mon = rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
- day = rtc_tm.tm_mday;
- hrs = rtc_tm.tm_hour;
- min = rtc_tm.tm_min;
- sec = rtc_tm.tm_sec;
-
- if (yrs < 1970)
- return -EINVAL;
-
- leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
-
- if ((mon > 12) || (day == 0))
- return -EINVAL;
-
- if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
- return -EINVAL;
-
- if ((hrs >= 24) || (min >= 60) || (sec >= 60))
- return -EINVAL;
-
- if ((yrs -= epoch) > 255) /* They are unsigned */
- return -EINVAL;
-
- if (yrs > 169)
- return -EINVAL;
-
- if (yrs >= 100)
- yrs -= 100;
-
- sec = BIN2BCD(sec);
- min = BIN2BCD(min);
- hrs = BIN2BCD(hrs);
- day = BIN2BCD(day);
- mon = BIN2BCD(mon);
- yrs = BIN2BCD(yrs);
-
- spin_lock_irq(&rtc_lock);
- rtc->control |= M48T35_RTC_SET;
- rtc->year = yrs;
- rtc->month = mon;
- rtc->date = day;
- rtc->hour = hrs;
- rtc->min = min;
- rtc->sec = sec;
- rtc->control &= ~M48T35_RTC_SET;
- spin_unlock_irq(&rtc_lock);
-
- return 0;
- }
- default:
- return -EINVAL;
- }
- return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
-}
-
-/*
- * We enforce only one user at a time here with the open/close.
- * Also clear the previous interrupt data on an open, and clean
- * up things on a close.
- */
-
-static int rtc_open(struct inode *inode, struct file *file)
-{
- spin_lock_irq(&rtc_lock);
-
- if (rtc_status & RTC_IS_OPEN) {
- spin_unlock_irq(&rtc_lock);
- return -EBUSY;
- }
-
- rtc_status |= RTC_IS_OPEN;
- spin_unlock_irq(&rtc_lock);
-
- return 0;
-}
-
-static int rtc_release(struct inode *inode, struct file *file)
-{
- /*
- * Turn off all interrupts once the device is no longer
- * in use, and clear the data.
- */
-
- spin_lock_irq(&rtc_lock);
- rtc_status &= ~RTC_IS_OPEN;
- spin_unlock_irq(&rtc_lock);
-
- return 0;
-}
-
-/*
- * The various file operations we support.
- */
-
-static struct file_operations rtc_fops = {
- .owner = THIS_MODULE,
- .ioctl = rtc_ioctl,
- .open = rtc_open,
- .release = rtc_release,
-};
-
-static struct miscdevice rtc_dev=
-{
- RTC_MINOR,
- "rtc",
- &rtc_fops
-};
-
-static int __init rtc_init(void)
-{
- rtc = (struct m48t35_rtc *)
- (KL_CONFIG_CH_CONS_INFO(master_nasid)->memory_base + IOC3_BYTEBUS_DEV0);
-
- printk(KERN_INFO "Real Time Clock Driver v%s\n", RTC_VERSION);
- if (misc_register(&rtc_dev)) {
- printk(KERN_ERR "rtc: cannot register misc device.\n");
- return -ENODEV;
- }
- if (!create_proc_read_entry("driver/rtc", 0, NULL, rtc_read_proc, NULL)) {
- printk(KERN_ERR "rtc: cannot create /proc/rtc.\n");
- misc_deregister(&rtc_dev);
- return -ENOENT;
- }
-
- rtc_freq = 1024;
-
- return 0;
-}
-
-static void __exit rtc_exit (void)
-{
- /* interrupts and timer disabled at this point by rtc_release */
-
- remove_proc_entry ("rtc", NULL);
- misc_deregister(&rtc_dev);
-}
-
-module_init(rtc_init);
-module_exit(rtc_exit);
-
-/*
- * Info exported via "/proc/rtc".
- */
-
-static int rtc_get_status(char *buf)
-{
- char *p;
- struct rtc_time tm;
-
- /*
- * Just emulate the standard /proc/rtc
- */
-
- p = buf;
-
- get_rtc_time(&tm);
-
- /*
- * There is no way to tell if the luser has the RTC set for local
- * time or for Universal Standard Time (GMT). Probably local though.
- */
- p += sprintf(p,
- "rtc_time\t: %02d:%02d:%02d\n"
- "rtc_date\t: %04d-%02d-%02d\n"
- "rtc_epoch\t: %04lu\n"
- "24hr\t\t: yes\n",
- tm.tm_hour, tm.tm_min, tm.tm_sec,
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, epoch);
-
- return p - buf;
-}
-
-static int rtc_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = rtc_get_status(page);
- if (len <= off+count) *eof = 1;
- *start = page + off;
- len -= off;
- if (len>count) len = count;
- if (len<0) len = 0;
- return len;
-}
-
-static void get_rtc_time(struct rtc_time *rtc_tm)
-{
- /*
- * Do we need to wait for the last update to finish?
- */
-
- /*
- * Only the values that we read from the RTC are set. We leave
- * tm_wday, tm_yday and tm_isdst untouched. Even though the
- * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
- * by the RTC when initially set to a non-zero value.
- */
- spin_lock_irq(&rtc_lock);
- rtc->control |= M48T35_RTC_READ;
- rtc_tm->tm_sec = rtc->sec;
- rtc_tm->tm_min = rtc->min;
- rtc_tm->tm_hour = rtc->hour;
- rtc_tm->tm_mday = rtc->date;
- rtc_tm->tm_mon = rtc->month;
- rtc_tm->tm_year = rtc->year;
- rtc->control &= ~M48T35_RTC_READ;
- spin_unlock_irq(&rtc_lock);
-
- rtc_tm->tm_sec = BCD2BIN(rtc_tm->tm_sec);
- rtc_tm->tm_min = BCD2BIN(rtc_tm->tm_min);
- rtc_tm->tm_hour = BCD2BIN(rtc_tm->tm_hour);
- rtc_tm->tm_mday = BCD2BIN(rtc_tm->tm_mday);
- rtc_tm->tm_mon = BCD2BIN(rtc_tm->tm_mon);
- rtc_tm->tm_year = BCD2BIN(rtc_tm->tm_year);
-
- /*
- * Account for differences between how the RTC uses the values
- * and how they are defined in a struct rtc_time;
- */
- if ((rtc_tm->tm_year += (epoch - 1900)) <= 69)
- rtc_tm->tm_year += 100;
-
- rtc_tm->tm_mon--;
-}
+++ /dev/null
-/*
- * LED, LCD and Button panel driver for Cobalt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996, 1997 by Andrew Bose
- *
- * Linux kernel version history:
- * March 2001: Ported from 2.0.34 by Liam Davies
- *
- */
-
-// function headers
-
-static int dqpoll(volatile unsigned long, volatile unsigned char );
-static int timeout(volatile unsigned long);
-
-#define LCD_CHARS_PER_LINE 40
-#define FLASH_SIZE 524288
-#define MAX_IDLE_TIME 120
-
-struct lcd_display {
- unsigned long buttons;
- int size1;
- int size2;
- unsigned char line1[LCD_CHARS_PER_LINE];
- unsigned char line2[LCD_CHARS_PER_LINE];
- unsigned char cursor_address;
- unsigned char character;
- unsigned char leds;
- unsigned char *RomImage;
-};
-
-
-
-#define LCD_DRIVER "Cobalt LCD Driver v2.10"
-
-#define kLCD_IR 0x0F000000
-#define kLCD_DR 0x0F000010
-#define kGPI 0x0D000000
-#define kLED 0x0C000000
-
-#define kDD_R00 0x00
-#define kDD_R01 0x27
-#define kDD_R10 0x40
-#define kDD_R11 0x67
-
-#define kLCD_Addr 0x00000080
-
-#define LCDTimeoutValue 0xfff
-
-
-// Flash definitions AMD 29F040
-#define kFlashBase 0x0FC00000
-
-#define kFlash_Addr1 0x5555
-#define kFlash_Addr2 0x2AAA
-#define kFlash_Data1 0xAA
-#define kFlash_Data2 0x55
-#define kFlash_Prog 0xA0
-#define kFlash_Erase3 0x80
-#define kFlash_Erase6 0x10
-#define kFlash_Read 0xF0
-
-#define kFlash_ID 0x90
-#define kFlash_VenAddr 0x00
-#define kFlash_DevAddr 0x01
-#define kFlash_VenID 0x01
-#define kFlash_DevID 0xA4 // 29F040
-//#define kFlash_DevID 0xAD // 29F016
-
-
-// Macros
-
-#define LCDWriteData(x) outl((x << 24), kLCD_DR)
-#define LCDWriteInst(x) outl((x << 24), kLCD_IR)
-
-#define LCDReadData (inl(kLCD_DR) >> 24)
-#define LCDReadInst (inl(kLCD_IR) >> 24)
-
-#define GPIRead (inl(kGPI) >> 24)
-
-#define LEDSet(x) outb((char)x, kLED)
-
-#define WRITE_GAL(x,y) outl(y, 0x04000000 | (x))
-#define BusyCheck() while ((LCDReadInst & 0x80) == 0x80)
-
-#define WRITE_FLASH(x,y) outb((char)y, kFlashBase | (x))
-#define READ_FLASH(x) (inb(kFlashBase | (x)))
-
-
-
-/*
- * Function command codes for io_ctl.
- */
-#define LCD_On 1
-#define LCD_Off 2
-#define LCD_Clear 3
-#define LCD_Reset 4
-#define LCD_Cursor_Left 5
-#define LCD_Cursor_Right 6
-#define LCD_Disp_Left 7
-#define LCD_Disp_Right 8
-#define LCD_Get_Cursor 9
-#define LCD_Set_Cursor 10
-#define LCD_Home 11
-#define LCD_Read 12
-#define LCD_Write 13
-#define LCD_Cursor_Off 14
-#define LCD_Cursor_On 15
-#define LCD_Get_Cursor_Pos 16
-#define LCD_Set_Cursor_Pos 17
-#define LCD_Blink_Off 18
-
-#define LED_Set 40
-#define LED_Bit_Set 41
-#define LED_Bit_Clear 42
-
-
-// Button defs
-#define BUTTON_Read 50
-
-// Flash command codes
-#define FLASH_Erase 60
-#define FLASH_Burn 61
-#define FLASH_Read 62
-
-
-// Ethernet LINK check hackaroo
-#define LINK_Check 90
-#define LINK_Check_2 91
-
-// Button patterns _B - single layer lcd boards
-
-#define BUTTON_NONE 0x3F
-#define BUTTON_NONE_B 0xFE
-
-#define BUTTON_Left 0x3B
-#define BUTTON_Left_B 0xFA
-
-#define BUTTON_Right 0x37
-#define BUTTON_Right_B 0xDE
-
-#define BUTTON_Up 0x2F
-#define BUTTON_Up_B 0xF6
-
-#define BUTTON_Down 0x1F
-#define BUTTON_Down_B 0xEE
-
-#define BUTTON_Next 0x3D
-#define BUTTON_Next_B 0x7E
-
-#define BUTTON_Enter 0x3E
-#define BUTTON_Enter_B 0xBE
-
-#define BUTTON_Reset_B 0xFC
-
-
-// debounce constants
-
-#define BUTTON_SENSE 160000
-#define BUTTON_DEBOUNCE 5000
-
-
-// Galileo register stuff
-
-#define kGal_DevBank2Cfg 0x1466DB33
-#define kGal_DevBank2PReg 0x464
-#define kGal_DevBank3Cfg 0x146FDFFB
-#define kGal_DevBank3PReg 0x468
-
-// Network
-
-#define kIPADDR 1
-#define kNETMASK 2
-#define kGATEWAY 3
-#define kDNS 4
-
-#define kClassA 5
-#define kClassB 6
-#define kClassC 7
-
+++ /dev/null
-/* $Id: sh-sci.c,v 1.16 2004/02/10 17:04:17 lethal Exp $
- *
- * linux/drivers/char/sh-sci.c
- *
- * SuperH on-chip serial module support. (SCI with no FIFO / with FIFO)
- * Copyright (C) 1999, 2000 Niibe Yutaka
- * Copyright (C) 2000 Sugioka Toshinobu
- * Modified to support multiple serial ports. Stuart Menefy (May 2000).
- * Modified to support SH7760 SCIF. Paul Mundt (Oct 2003).
- * Modified to support H8/300 Series. Yoshinori Sato (Feb 2004).
- *
- * TTY code is based on sx.c (Specialix SX driver) by:
- *
- * (C) 1998 R.E.Wolff@BitWizard.nl
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SH_KGDB_CONSOLE)
-#include <linux/console.h>
-#endif
-#ifdef CONFIG_CPU_FREQ
-#include <linux/notifier.h>
-#include <linux/cpufreq.h>
-#endif
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/bitops.h>
-
-#include <linux/generic_serial.h>
-
-#ifdef CONFIG_SH_STANDARD_BIOS
-#include <asm/sh_bios.h>
-#endif
-
-#include "sh-sci.h"
-
-#ifdef CONFIG_SH_KGDB
-#include <asm/kgdb.h>
-
-int kgdb_sci_setup(void);
-static int kgdb_get_char(struct sci_port *port);
-static void kgdb_put_char(struct sci_port *port, char c);
-static void kgdb_handle_error(struct sci_port *port);
-static struct sci_port *kgdb_sci_port;
-
-#ifdef CONFIG_SH_KGDB_CONSOLE
-static struct console kgdbcons;
-void __init kgdb_console_init(void);
-#endif /* CONFIG_SH_KGDB_CONSOLE */
-
-#endif /* CONFIG_SH_KGDB */
-
-#ifdef CONFIG_SERIAL_CONSOLE
-static struct console sercons;
-static struct sci_port* sercons_port=0;
-static int sercons_baud;
-#ifdef CONFIG_MAGIC_SYSRQ
-#include <linux/sysrq.h>
-static int break_pressed;
-#endif /* CONFIG_MAGIC_SYSRQ */
-#endif /* CONFIG_SERIAL_CONSOLE */
-
-/* Function prototypes */
-static void sci_init_pins_sci(struct sci_port* port, unsigned int cflag);
-#ifndef SCI_ONLY
-static void sci_init_pins_scif(struct sci_port* port, unsigned int cflag);
-#if defined(CONFIG_CPU_SH3)
-static void sci_init_pins_irda(struct sci_port* port, unsigned int cflag);
-#endif
-#endif
-static void sci_disable_tx_interrupts(void *ptr);
-static void sci_enable_tx_interrupts(void *ptr);
-static void sci_disable_rx_interrupts(void *ptr);
-static void sci_enable_rx_interrupts(void *ptr);
-static int sci_get_CD(void *ptr);
-static void sci_shutdown_port(void *ptr);
-static int sci_set_real_termios(void *ptr);
-static void sci_hungup(void *ptr);
-static void sci_close(void *ptr);
-static int sci_chars_in_buffer(void *ptr);
-static int sci_request_irq(struct sci_port *port);
-static void sci_free_irq(struct sci_port *port);
-static int sci_init_drivers(void);
-
-static struct tty_driver *sci_driver;
-
-static struct sci_port sci_ports[SCI_NPORTS] = SCI_INIT;
-
-static int sci_debug = 0;
-
-#ifdef MODULE
-MODULE_PARM(sci_debug, "i");
-#endif
-
-#define dprintk(x...) do { if (sci_debug) printk(x); } while(0)
-
-#ifdef CONFIG_SERIAL_CONSOLE
-static void put_char(struct sci_port *port, char c)
-{
- unsigned long flags;
- unsigned short status;
-
- local_irq_save(flags);
-
- do
- status = sci_in(port, SCxSR);
- while (!(status & SCxSR_TDxE(port)));
-
- sci_out(port, SCxTDR, c);
- sci_in(port, SCxSR); /* Dummy read */
- sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
-
- local_irq_restore(flags);
-}
-#endif
-
-#if defined(CONFIG_SH_STANDARD_BIOS) || defined(CONFIG_SH_KGDB)
-
-static void handle_error(struct sci_port *port)
-{ /* Clear error flags */
- sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port));
-}
-
-static int get_char(struct sci_port *port)
-{
- unsigned long flags;
- unsigned short status;
- int c;
-
- local_irq_save(flags);
- do {
- status = sci_in(port, SCxSR);
- if (status & SCxSR_ERRORS(port)) {
- handle_error(port);
- continue;
- }
- } while (!(status & SCxSR_RDxF(port)));
- c = sci_in(port, SCxRDR);
- sci_in(port, SCxSR); /* Dummy read */
- sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port));
- local_irq_restore(flags);
-
- return c;
-}
-
-/* Taken from sh-stub.c of GDB 4.18 */
-static const char hexchars[] = "0123456789abcdef";
-
-static __inline__ char highhex(int x)
-{
- return hexchars[(x >> 4) & 0xf];
-}
-
-static __inline__ char lowhex(int x)
-{
- return hexchars[x & 0xf];
-}
-
-#endif /* CONFIG_SH_STANDARD_BIOS || CONFIG_SH_KGDB */
-
-/*
- * Send the packet in buffer. The host gets one chance to read it.
- * This routine does not wait for a positive acknowledge.
- */
-
-#ifdef CONFIG_SERIAL_CONSOLE
-static void put_string(struct sci_port *port, const char *buffer, int count)
-{
- int i;
- const unsigned char *p = buffer;
-
-#if defined(CONFIG_SH_STANDARD_BIOS) || defined(CONFIG_SH_KGDB)
- int checksum;
- int usegdb=0;
-
-#ifdef CONFIG_SH_STANDARD_BIOS
- /* This call only does a trap the first time it is
- * called, and so is safe to do here unconditionally
- */
- usegdb |= sh_bios_in_gdb_mode();
-#endif
-#ifdef CONFIG_SH_KGDB
- usegdb |= (kgdb_in_gdb_mode && (port == kgdb_sci_port));
-#endif
-
- if (usegdb) {
- /* $<packet info>#<checksum>. */
- do {
- unsigned char c;
- put_char(port, '$');
- put_char(port, 'O'); /* 'O'utput to console */
- checksum = 'O';
-
- for (i=0; i<count; i++) { /* Don't use run length encoding */
- int h, l;
-
- c = *p++;
- h = highhex(c);
- l = lowhex(c);
- put_char(port, h);
- put_char(port, l);
- checksum += h + l;
- }
- put_char(port, '#');
- put_char(port, highhex(checksum));
- put_char(port, lowhex(checksum));
- } while (get_char(port) != '+');
- } else
-#endif /* CONFIG_SH_STANDARD_BIOS || CONFIG_SH_KGDB */
- for (i=0; i<count; i++) {
- if (*p == 10)
- put_char(port, '\r');
- put_char(port, *p++);
- }
-}
-#endif /* CONFIG_SERIAL_CONSOLE */
-
-
-#ifdef CONFIG_SH_KGDB
-
-/* Is the SCI ready, ie is there a char waiting? */
-static int kgdb_is_char_ready(struct sci_port *port)
-{
- unsigned short status = sci_in(port, SCxSR);
-
- if (status & (SCxSR_ERRORS(port) | SCxSR_BRK(port)))
- kgdb_handle_error(port);
-
- return (status & SCxSR_RDxF(port));
-}
-
-/* Write a char */
-static void kgdb_put_char(struct sci_port *port, char c)
-{
- unsigned short status;
-
- do
- status = sci_in(port, SCxSR);
- while (!(status & SCxSR_TDxE(port)));
-
- sci_out(port, SCxTDR, c);
- sci_in(port, SCxSR); /* Dummy read */
- sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
-}
-
-/* Get a char if there is one, else ret -1 */
-static int kgdb_get_char(struct sci_port *port)
-{
- int c;
-
- if (kgdb_is_char_ready(port) == 0)
- c = -1;
- else {
- c = sci_in(port, SCxRDR);
- sci_in(port, SCxSR); /* Dummy read */
- sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port));
- }
-
- return c;
-}
-
-/* Called from kgdbstub.c to get a character, i.e. is blocking */
-static int kgdb_sci_getchar(void)
-{
- volatile int c;
-
- /* Keep trying to read a character, this could be neater */
- while ((c = kgdb_get_char(kgdb_sci_port)) < 0);
-
- return c;
-}
-
-/* Called from kgdbstub.c to put a character, just a wrapper */
-static void kgdb_sci_putchar(int c)
-{
-
- kgdb_put_char(kgdb_sci_port, c);
-}
-
-/* Clear any errors on the SCI */
-static void kgdb_handle_error(struct sci_port *port)
-{
- sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port)); /* Clear error flags */
-}
-
-/* Breakpoint if there's a break sent on the serial port */
-static void kgdb_break_interrupt(int irq, void *ptr, struct pt_regs *regs)
-{
- struct sci_port *port = ptr;
- unsigned short status = sci_in(port, SCxSR);
-
- if (status & SCxSR_BRK(port)) {
-
- /* Break into the debugger if a break is detected */
- BREAKPOINT();
-
- /* Clear */
- sci_out(port, SCxSR, SCxSR_BREAK_CLEAR(port));
- return;
- }
-}
-
-#endif /* CONFIG_SH_KGDB */
-
-static struct real_driver sci_real_driver = {
- sci_disable_tx_interrupts,
- sci_enable_tx_interrupts,
- sci_disable_rx_interrupts,
- sci_enable_rx_interrupts,
- sci_get_CD,
- sci_shutdown_port,
- sci_set_real_termios,
- sci_chars_in_buffer,
- sci_close,
- sci_hungup,
- NULL
-};
-
-#if !defined(__H8300H__) && !defined(__H8300S__)
-#if defined(SCI_ONLY) || defined(SCI_AND_SCIF)
-static void sci_init_pins_sci(struct sci_port* port, unsigned int cflag)
-{
-}
-#endif
-
-#if defined(SCIF_ONLY) || defined(SCI_AND_SCIF)
-#if defined(CONFIG_CPU_SH3)
-/* For SH7707, SH7709, SH7709A, SH7729 */
-static void sci_init_pins_scif(struct sci_port* port, unsigned int cflag)
-{
- unsigned int fcr_val = 0;
-
- {
- unsigned short data;
-
- /* We need to set SCPCR to enable RTS/CTS */
- data = ctrl_inw(SCPCR);
- /* Clear out SCP7MD1,0, SCP6MD1,0, SCP4MD1,0*/
- ctrl_outw(data&0x0cff, SCPCR);
- }
- if (cflag & CRTSCTS)
- fcr_val |= SCFCR_MCE;
- else {
- unsigned short data;
-
- /* We need to set SCPCR to enable RTS/CTS */
- data = ctrl_inw(SCPCR);
- /* Clear out SCP7MD1,0, SCP4MD1,0,
- Set SCP6MD1,0 = {01} (output) */
- ctrl_outw((data&0x0cff)|0x1000, SCPCR);
-
- data = ctrl_inb(SCPDR);
- /* Set /RTS2 (bit6) = 0 */
- ctrl_outb(data&0xbf, SCPDR);
- }
- sci_out(port, SCFCR, fcr_val);
-}
-
-static void sci_init_pins_irda(struct sci_port* port, unsigned int cflag)
-{
- unsigned int fcr_val = 0;
-
- if (cflag & CRTSCTS)
- fcr_val |= SCFCR_MCE;
-
- sci_out(port, SCFCR, fcr_val);
-}
-
-#else
-
-/* For SH7750 */
-static void sci_init_pins_scif(struct sci_port* port, unsigned int cflag)
-{
- unsigned int fcr_val = 0;
-
- if (cflag & CRTSCTS) {
- fcr_val |= SCFCR_MCE;
- } else {
- ctrl_outw(0x0080, SCSPTR2); /* Set RTS = 1 */
- }
- sci_out(port, SCFCR, fcr_val);
-}
-
-#endif
-#endif /* SCIF_ONLY || SCI_AND_SCIF */
-#else /* !defined(__H8300H__) && !defined(__H8300S__) */
-static void sci_init_pins_sci(struct sci_port* port, unsigned int cflag)
-{
- int ch = (port->base - SMR0) >> 3;
- /* set DDR regs */
- H8300_GPIO_DDR(h8300_sci_pins[ch].port,h8300_sci_pins[ch].rx,H8300_GPIO_INPUT);
- H8300_GPIO_DDR(h8300_sci_pins[ch].port,h8300_sci_pins[ch].tx,H8300_GPIO_OUTPUT);
- /* tx mark output*/
- H8300_SCI_DR(ch) |= h8300_sci_pins[ch].tx;
-}
-
-#if defined(__H8300S__)
-enum {sci_disable,sci_enable};
-
-static void h8300_sci_enable(struct sci_port* port, unsigned int ctrl)
-{
- volatile unsigned char *mstpcrl=(volatile unsigned char *)MSTPCRL;
- int ch = (port->base - SMR0) >> 3;
- unsigned char mask = 1 << (ch+1);
- if (ctrl == sci_disable)
- *mstpcrl |= mask;
- else
- *mstpcrl &= ~mask;
-}
-#endif
-#endif
-
-static void sci_setsignals(struct sci_port *port, int dtr, int rts)
-{
- /* This routine is used for seting signals of: DTR, DCD, CTS/RTS */
- /* We use SCIF's hardware for CTS/RTS, so don't need any for that. */
- /* If you have signals for DTR and DCD, please implement here. */
- ;
-}
-
-static int sci_getsignals(struct sci_port *port)
-{
- /* This routine is used for geting signals of: DTR, DCD, DSR, RI,
- and CTS/RTS */
-
- return TIOCM_DTR|TIOCM_RTS|TIOCM_DSR;
-/*
- (((o_stat & OP_DTR)?TIOCM_DTR:0) |
- ((o_stat & OP_RTS)?TIOCM_RTS:0) |
- ((i_stat & IP_CTS)?TIOCM_CTS:0) |
- ((i_stat & IP_DCD)?TIOCM_CAR:0) |
- ((i_stat & IP_DSR)?TIOCM_DSR:0) |
- ((i_stat & IP_RI) ?TIOCM_RNG:0)
-*/
-}
-
-static void sci_set_baud(struct sci_port *port, int baud)
-{
- int t;
-
- switch (baud) {
- case 0:
- t = -1;
- break;
- case 2400:
- t = BPS_2400;
- break;
- case 4800:
- t = BPS_4800;
- break;
- case 9600:
- t = BPS_9600;
- break;
- case 19200:
- t = BPS_19200;
- break;
- case 38400:
- t = BPS_38400;
- break;
- case 57600:
- t = BPS_57600;
- break;
- default:
- printk(KERN_INFO "sci: unsupported baud rate: %d, using 115200 instead.\n", baud);
- case 115200:
- t = BPS_115200;
- break;
- }
-
- if (t > 0) {
- sci_setsignals (port, 1, -1);
- if(t >= 256) {
- sci_out(port, SCSMR, (sci_in(port, SCSMR) & ~3) | 1);
- t >>= 2;
- } else {
- sci_out(port, SCSMR, sci_in(port, SCSMR) & ~3);
- }
- sci_out(port, SCBRR, t);
- udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */
- } else {
- sci_setsignals (port, 0, -1);
- }
-}
-
-static void sci_set_termios_cflag(struct sci_port *port, int cflag, int baud)
-{
- unsigned int status;
- unsigned int smr_val;
-
- do
- status = sci_in(port, SCxSR);
- while (!(status & SCxSR_TEND(port)));
-
- sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */
-
-#if !defined(SCI_ONLY)
- if (port->type == PORT_SCIF) {
- sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);
- }
-#endif
-
- smr_val = sci_in(port, SCSMR) & 3;
- if ((cflag & CSIZE) == CS7)
- smr_val |= 0x40;
- if (cflag & PARENB)
- smr_val |= 0x20;
- if (cflag & PARODD)
- smr_val |= 0x30;
- if (cflag & CSTOPB)
- smr_val |= 0x08;
- sci_out(port, SCSMR, smr_val);
- sci_set_baud(port, baud);
-
- port->init_pins(port, cflag);
- sci_out(port, SCSCR, SCSCR_INIT(port));
-}
-
-static int sci_set_real_termios(void *ptr)
-{
- struct sci_port *port = ptr;
-
- if (port->old_cflag != port->gs.tty->termios->c_cflag) {
- port->old_cflag = port->gs.tty->termios->c_cflag;
- sci_set_termios_cflag(port, port->old_cflag, port->gs.baud);
- sci_enable_rx_interrupts(port);
- }
-
- return 0;
-}
-
-/* ********************************************************************** *
- * the interrupt related routines *
- * ********************************************************************** */
-
-/*
- * This routine is used by the interrupt handler to schedule
- * processing in the software interrupt portion of the driver.
- */
-static inline void sci_sched_event(struct sci_port *port, int event)
-{
- port->event |= 1 << event;
- schedule_work(&port->tqueue);
-}
-
-static void sci_transmit_chars(struct sci_port *port)
-{
- int count, i;
- int txroom;
- unsigned long flags;
- unsigned short status;
- unsigned short ctrl;
- unsigned char c;
-
- status = sci_in(port, SCxSR);
- if (!(status & SCxSR_TDxE(port))) {
- local_irq_save(flags);
- ctrl = sci_in(port, SCSCR);
- if (port->gs.xmit_cnt == 0) {
- ctrl &= ~SCI_CTRL_FLAGS_TIE;
- port->gs.flags &= ~GS_TX_INTEN;
- } else
- ctrl |= SCI_CTRL_FLAGS_TIE;
- sci_out(port, SCSCR, ctrl);
- local_irq_restore(flags);
- return;
- }
-
- while (1) {
- count = port->gs.xmit_cnt;
-#if !defined(SCI_ONLY)
- if (port->type == PORT_SCIF) {
- txroom = 16 - (sci_in(port, SCFDR)>>8);
- } else {
- txroom = (sci_in(port, SCxSR) & SCI_TDRE)?1:0;
- }
-#else
- txroom = (sci_in(port, SCxSR) & SCI_TDRE)?1:0;
-#endif
- if (count > txroom)
- count = txroom;
-
- /* Don't copy past the end of the source buffer */
- if (count > SERIAL_XMIT_SIZE - port->gs.xmit_tail)
- count = SERIAL_XMIT_SIZE - port->gs.xmit_tail;
-
- /* If for one reason or another, we can't copy more data, we're done! */
- if (count == 0)
- break;
-
- for (i=0; i<count; i++) {
- c = port->gs.xmit_buf[port->gs.xmit_tail + i];
- sci_out(port, SCxTDR, c);
- }
- sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
-
- port->icount.tx += count;
-
- /* Update the kernel buffer end */
- port->gs.xmit_tail = (port->gs.xmit_tail + count) & (SERIAL_XMIT_SIZE-1);
-
- /* This one last. (this is essential)
- It would allow others to start putting more data into the buffer! */
- port->gs.xmit_cnt -= count;
- }
-
- if (port->gs.xmit_cnt <= port->gs.wakeup_chars)
- sci_sched_event(port, SCI_EVENT_WRITE_WAKEUP);
-
- local_irq_save(flags);
- ctrl = sci_in(port, SCSCR);
- if (port->gs.xmit_cnt == 0) {
- ctrl &= ~SCI_CTRL_FLAGS_TIE;
- port->gs.flags &= ~GS_TX_INTEN;
- } else {
-#if !defined(SCI_ONLY)
- if (port->type == PORT_SCIF) {
- sci_in(port, SCxSR); /* Dummy read */
- sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
- }
-#endif
- ctrl |= SCI_CTRL_FLAGS_TIE;
- }
- sci_out(port, SCSCR, ctrl);
- local_irq_restore(flags);
-}
-
-/* On SH3, SCIF may read end-of-break as a space->mark char */
-#define STEPFN(c) ({int __c=(c); (((__c-1)|(__c)) == -1); })
-
-static inline void sci_receive_chars(struct sci_port *port,
- struct pt_regs *regs)
-{
- int i, count;
- struct tty_struct *tty;
- int copied=0;
- unsigned short status;
-
- status = sci_in(port, SCxSR);
- if (!(status & SCxSR_RDxF(port)))
- return;
-
- tty = port->gs.tty;
- while (1) {
-#if !defined(SCI_ONLY)
- if (port->type == PORT_SCIF) {
- count = sci_in(port, SCFDR)&0x001f;
- } else {
- count = (sci_in(port, SCxSR)&SCxSR_RDxF(port))?1:0;
- }
-#else
- count = (sci_in(port, SCxSR)&SCxSR_RDxF(port))?1:0;
-#endif
-
- /* Don't copy more bytes than there is room for in the buffer */
- if (tty->flip.count + count > TTY_FLIPBUF_SIZE)
- count = TTY_FLIPBUF_SIZE - tty->flip.count;
-
- /* If for any reason we can't copy more data, we're done! */
- if (count == 0)
- break;
-
- if (port->type == PORT_SCI) {
- tty->flip.char_buf_ptr[0] = sci_in(port, SCxRDR);
- tty->flip.flag_buf_ptr[0] = TTY_NORMAL;
- } else {
- for (i=0; i<count; i++) {
- char c = sci_in(port, SCxRDR);
- status = sci_in(port, SCxSR);
-#if defined(__SH3__)
- /* Skip "chars" during break */
- if (port->break_flag) {
- if ((c == 0) &&
- (status & SCxSR_FER(port))) {
- count--; i--;
- continue;
- }
- /* Nonzero => end-of-break */
- dprintk("scif: debounce<%02x>\n", c);
- port->break_flag = 0;
- if (STEPFN(c)) {
- count--; i--;
- continue;
- }
- }
-#endif /* __SH3__ */
-#if defined(CONFIG_SERIAL_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
- if (break_pressed && (port == sercons_port)) {
- if (c != 0 &&
- time_before(jiffies,
- break_pressed + HZ*5)) {
- handle_sysrq(c, regs, NULL);
- break_pressed = 0;
- count--; i--;
- continue;
- } else if (c != 0) {
- break_pressed = 0;
- }
- }
-#endif /* CONFIG_SERIAL_CONSOLE && CONFIG_MAGIC_SYSRQ */
-
- /* Store data and status */
- tty->flip.char_buf_ptr[i] = c;
- if (status&SCxSR_FER(port)) {
- tty->flip.flag_buf_ptr[i] = TTY_FRAME;
- dprintk("sci: frame error\n");
- } else if (status&SCxSR_PER(port)) {
- tty->flip.flag_buf_ptr[i] = TTY_PARITY;
- dprintk("sci: parity error\n");
- } else {
- tty->flip.flag_buf_ptr[i] = TTY_NORMAL;
- }
- }
- }
-
- sci_in(port, SCxSR); /* dummy read */
- sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port));
-
- /* Update the kernel buffer end */
- tty->flip.count += count;
- tty->flip.char_buf_ptr += count;
- tty->flip.flag_buf_ptr += count;
-
- copied += count;
- port->icount.rx += count;
- }
-
- if (copied)
- /* Tell the rest of the system the news. New characters! */
- tty_flip_buffer_push(tty);
- else {
- sci_in(port, SCxSR); /* dummy read */
- sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port));
- }
-}
-
-static inline int sci_handle_errors(struct sci_port *port)
-{
- int copied = 0;
- unsigned short status = sci_in(port, SCxSR);
- struct tty_struct *tty = port->gs.tty;
-
- if (status&SCxSR_ORER(port) && tty->flip.count<TTY_FLIPBUF_SIZE) {
- /* overrun error */
- copied++;
- *tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
- dprintk("sci: overrun error\n");
- }
-
- if (status&SCxSR_FER(port) && tty->flip.count<TTY_FLIPBUF_SIZE) {
- if (sci_rxd_in(port) == 0) {
- /* Notify of BREAK */
- copied++;
- *tty->flip.flag_buf_ptr++ = TTY_BREAK;
- dprintk("sci: BREAK detected\n");
- }
- else {
- /* frame error */
- copied++;
- *tty->flip.flag_buf_ptr++ = TTY_FRAME;
- dprintk("sci: frame error\n");
- }
- }
-
- if (status&SCxSR_PER(port) && tty->flip.count<TTY_FLIPBUF_SIZE) {
- /* parity error */
- copied++;
- *tty->flip.flag_buf_ptr++ = TTY_PARITY;
- dprintk("sci: parity error\n");
- }
-
- if (copied) {
- tty->flip.count += copied;
- tty_flip_buffer_push(tty);
- }
-
- return copied;
-}
-
-static inline int sci_handle_breaks(struct sci_port *port)
-{
- int copied = 0;
- unsigned short status = sci_in(port, SCxSR);
- struct tty_struct *tty = port->gs.tty;
-
- if (status&SCxSR_BRK(port) && tty->flip.count<TTY_FLIPBUF_SIZE) {
-#if defined(__SH3__)
- /* Debounce break */
- if (port->break_flag)
- goto break_continue;
- port->break_flag = 1;
-#endif
-#if defined(CONFIG_SERIAL_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
- if (port == sercons_port) {
- if (break_pressed == 0) {
- break_pressed = jiffies;
- dprintk("sci: implied sysrq\n");
- goto break_continue;
- }
- /* Double break implies a real break */
- break_pressed = 0;
- }
-#endif
- /* Notify of BREAK */
- copied++;
- *tty->flip.flag_buf_ptr++ = TTY_BREAK;
- dprintk("sci: BREAK detected\n");
- }
- break_continue:
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_ST40STB1) || \
- defined(CONFIG_CPU_SUBTYPE_SH7760)
- /* XXX: Handle SCIF overrun error */
- if (port->type == PORT_SCIF && (sci_in(port, SCLSR) & SCIF_ORER) != 0) {
- sci_out(port, SCLSR, 0);
- if(tty->flip.count<TTY_FLIPBUF_SIZE) {
- copied++;
- *tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
- dprintk("sci: overrun error\n");
- }
- }
-#endif
-
- if (copied) {
- tty->flip.count += copied;
- tty_flip_buffer_push(tty);
- }
-
- return copied;
-}
-
-static irqreturn_t sci_rx_interrupt(int irq, void *ptr, struct pt_regs *regs)
-{
- struct sci_port *port = ptr;
-
- if (port->gs.flags & GS_ACTIVE)
- if (!(port->gs.flags & SCI_RX_THROTTLE)) {
- sci_receive_chars(port, regs);
- return IRQ_HANDLED;
-
- }
- sci_disable_rx_interrupts(port);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t sci_tx_interrupt(int irq, void *ptr, struct pt_regs *regs)
-{
- struct sci_port *port = ptr;
-
- if (port->gs.flags & GS_ACTIVE)
- sci_transmit_chars(port);
- else {
- sci_disable_tx_interrupts(port);
- }
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t sci_er_interrupt(int irq, void *ptr, struct pt_regs *regs)
-{
- struct sci_port *port = ptr;
-
- /* Handle errors */
- if (port->type == PORT_SCI) {
- if(sci_handle_errors(port)) {
- /* discard character in rx buffer */
- sci_in(port, SCxSR);
- sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port));
- }
- }
- else
- sci_rx_interrupt(irq, ptr, regs);
-
- sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port));
-
- /* Kick the transmission */
- sci_tx_interrupt(irq, ptr, regs);
-
- return IRQ_HANDLED;
-}
-
-#if !defined(SCI_ONLY)
-static irqreturn_t sci_br_interrupt(int irq, void *ptr, struct pt_regs *regs)
-{
- struct sci_port *port = ptr;
-
- /* Handle BREAKs */
- sci_handle_breaks(port);
- sci_out(port, SCxSR, SCxSR_BREAK_CLEAR(port));
-
- return IRQ_HANDLED;
-}
-#endif
-
-static void do_softint(void *private_)
-{
- struct sci_port *port = (struct sci_port *) private_;
- struct tty_struct *tty;
-
- tty = port->gs.tty;
- if (!tty)
- return;
-
- if (test_and_clear_bit(SCI_EVENT_WRITE_WAKEUP, &port->event)) {
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- tty->ldisc.write_wakeup)
- (tty->ldisc.write_wakeup)(tty);
- wake_up_interruptible(&tty->write_wait);
- }
-}
-
-/* ********************************************************************** *
- * Here are the routines that actually *
- * interface with the generic_serial driver *
- * ********************************************************************** */
-
-static void sci_disable_tx_interrupts(void *ptr)
-{
- struct sci_port *port = ptr;
- unsigned long flags;
- unsigned short ctrl;
-
- /* Clear TIE (Transmit Interrupt Enable) bit in SCSCR */
- local_irq_save(flags);
- ctrl = sci_in(port, SCSCR);
- ctrl &= ~SCI_CTRL_FLAGS_TIE;
- sci_out(port, SCSCR, ctrl);
- local_irq_restore(flags);
-}
-
-static void sci_enable_tx_interrupts(void *ptr)
-{
- struct sci_port *port = ptr;
-
- disable_irq(port->irqs[SCIx_TXI_IRQ]);
- sci_transmit_chars(port);
- enable_irq(port->irqs[SCIx_TXI_IRQ]);
-}
-
-static void sci_disable_rx_interrupts(void * ptr)
-{
- struct sci_port *port = ptr;
- unsigned long flags;
- unsigned short ctrl;
-
- /* Clear RIE (Receive Interrupt Enable) bit in SCSCR */
- local_irq_save(flags);
- ctrl = sci_in(port, SCSCR);
- ctrl &= ~SCI_CTRL_FLAGS_RIE;
- sci_out(port, SCSCR, ctrl);
- local_irq_restore(flags);
-}
-
-static void sci_enable_rx_interrupts(void * ptr)
-{
- struct sci_port *port = ptr;
- unsigned long flags;
- unsigned short ctrl;
-
- /* Set RIE (Receive Interrupt Enable) bit in SCSCR */
- local_irq_save(flags);
- ctrl = sci_in(port, SCSCR);
- ctrl |= SCI_CTRL_FLAGS_RIE;
- sci_out(port, SCSCR, ctrl);
- local_irq_restore(flags);
-}
-
-static int sci_get_CD(void * ptr)
-{
- /* If you have signal for CD (Carrier Detect), please change here. */
- return 1;
-}
-
-static int sci_chars_in_buffer(void * ptr)
-{
- struct sci_port *port = ptr;
-
-#if !defined(SCI_ONLY)
- if (port->type == PORT_SCIF) {
- return (sci_in(port, SCFDR) >> 8) + ((sci_in(port, SCxSR) & SCxSR_TEND(port))? 0: 1);
- } else {
- return (sci_in(port, SCxSR) & SCxSR_TEND(port))? 0: 1;
- }
-#else
- return (sci_in(port, SCxSR) & SCxSR_TEND(port))? 0: 1;
-#endif
-}
-
-static void sci_shutdown_port(void * ptr)
-{
- struct sci_port *port = ptr;
-
- port->gs.flags &= ~ GS_ACTIVE;
- if (port->gs.tty && port->gs.tty->termios->c_cflag & HUPCL)
- sci_setsignals(port, 0, 0);
- sci_free_irq(port);
-#if defined(__H8300S__)
- h8300_sci_enable(port,sci_disable);
-#endif
-}
-
-/* ********************************************************************** *
- * Here are the routines that actually *
- * interface with the rest of the system *
- * ********************************************************************** */
-
-static int sci_open(struct tty_struct * tty, struct file * filp)
-{
- struct sci_port *port;
- int retval, line;
-
- line = tty->index;
-
- if ((line < 0) || (line >= SCI_NPORTS))
- return -ENODEV;
-
- port = &sci_ports[line];
-
- tty->driver_data = port;
- port->gs.tty = tty;
- port->gs.count++;
-
- port->event = 0;
- INIT_WORK(&port->tqueue, do_softint, port);
-
-#if defined(__H8300S__)
- h8300_sci_enable(port,sci_enable);
-#endif
-
- /*
- * Start up serial port
- */
- retval = gs_init_port(&port->gs);
- if (retval) {
- goto failed_1;
- }
-
- port->gs.flags |= GS_ACTIVE;
- sci_setsignals(port, 1,1);
-
- if (port->gs.count == 1) {
- retval = sci_request_irq(port);
- }
-
- retval = gs_block_til_ready(port, filp);
-
- if (retval) {
- goto failed_3;
- }
-
-#ifdef CONFIG_SERIAL_CONSOLE
- if (sercons.cflag && sercons.index == line) {
- tty->termios->c_cflag = sercons.cflag;
- port->gs.baud = sercons_baud;
- sercons.cflag = 0;
- sci_set_real_termios(port);
- }
-#endif
-
-#ifdef CONFIG_SH_KGDB_CONSOLE
- if (kgdbcons.cflag && kgdbcons.index == line) {
- tty->termios->c_cflag = kgdbcons.cflag;
- port->gs.baud = kgdb_baud;
- sercons.cflag = 0;
- sci_set_real_termios(port);
- }
-#endif
-
- sci_enable_rx_interrupts(port);
-
- return 0;
-
-failed_3:
- sci_free_irq(port);
-failed_1:
- port->gs.count--;
- return retval;
-}
-
-static void sci_hungup(void *ptr)
-{
- return;
-}
-
-static void sci_close(void *ptr)
-{
- return;
-}
-
-static int sci_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct sci_port *port = tty->driver_data;
- return sci_getsignals(port);
-}
-
-static int sci_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct sci_port *port = tty->driver_data;
- int rts = -1, dtr = -1;
-
- if (set & TIOCM_RTS)
- rts = 1;
- if (set & TIOCM_DTR)
- dtr = 1;
- if (clear & TIOCM_RTS)
- rts = 0;
- if (clear & TIOCM_DTR)
- dtr = 0;
-
- sci_setsignals(port, dtr, rts);
- return 0;
-}
-
-static int sci_ioctl(struct tty_struct * tty, struct file * filp,
- unsigned int cmd, unsigned long arg)
-{
- int rc;
- struct sci_port *port = tty->driver_data;
- int ival;
-
- rc = 0;
- switch (cmd) {
- case TIOCGSOFTCAR:
- rc = put_user(((tty->termios->c_cflag & CLOCAL) ? 1 : 0),
- (unsigned int __user *) arg);
- break;
- case TIOCSSOFTCAR:
- if ((rc = get_user(ival, (unsigned int __user *) arg)) == 0)
- tty->termios->c_cflag =
- (tty->termios->c_cflag & ~CLOCAL) |
- (ival ? CLOCAL : 0);
- break;
- case TIOCGSERIAL:
- if ((rc = verify_area(VERIFY_WRITE, (void __user *) arg,
- sizeof(struct serial_struct))) == 0)
- rc = gs_getserial(&port->gs, (struct serial_struct *) arg);
- break;
- case TIOCSSERIAL:
- if ((rc = verify_area(VERIFY_READ, (void __user *) arg,
- sizeof(struct serial_struct))) == 0)
- rc = gs_setserial(&port->gs,
- (struct serial_struct *) arg);
- break;
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
-
- return rc;
-}
-
-static void sci_throttle(struct tty_struct * tty)
-{
- struct sci_port *port = (struct sci_port *)tty->driver_data;
-
- /* If the port is using any type of input flow
- * control then throttle the port.
- */
- if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty)) )
- port->gs.flags |= SCI_RX_THROTTLE;
-}
-
-static void sci_unthrottle(struct tty_struct * tty)
-{
- struct sci_port *port = (struct sci_port *)tty->driver_data;
-
- /* Always unthrottle even if flow control is not enabled on
- * this port in case we disabled flow control while the port
- * was throttled
- */
- port->gs.flags &= ~SCI_RX_THROTTLE;
- sci_enable_rx_interrupts(port);
- return;
-}
-
-#ifdef CONFIG_PROC_FS
-static int sci_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- int i;
- struct sci_port *port;
- int len = 0;
-
- len += sprintf(page, "sciinfo:0.1\n");
- for (i = 0; i < SCI_NPORTS && len < 4000; i++) {
- port = &sci_ports[i];
- len += sprintf(page+len, "%d: uart:%s address: %08x", i,
- (port->type == PORT_SCI) ? "SCI" : "SCIF",
- port->base);
- len += sprintf(page+len, " baud:%d", port->gs.baud);
- len += sprintf(page+len, " tx:%d rx:%d",
- port->icount.tx, port->icount.rx);
-
- if (port->icount.frame)
- len += sprintf(page+len, " fe:%d", port->icount.frame);
- if (port->icount.parity)
- len += sprintf(page+len, " pe:%d", port->icount.parity);
- if (port->icount.brk)
- len += sprintf(page+len, " brk:%d", port->icount.brk);
- if (port->icount.overrun)
- len += sprintf(page+len, " oe:%d", port->icount.overrun);
- len += sprintf(page+len, "\n");
- }
- return len;
-}
-#endif
-
-#ifdef CONFIG_CPU_FREQ
-/*
- * Here we define a transistion notifier so that we can update all of our
- * ports' baud rate when the peripheral clock changes.
- */
-
-static int sci_notifier(struct notifier_block *self, unsigned long phase, void *p)
-{
- struct cpufreq_freqs *freqs = p;
- int i;
-
- if (phase == CPUFREQ_POSTCHANGE) {
- for (i = 0; i < SCI_NPORTS; i++) {
- /*
- * This will force a baud rate change in hardware.
- */
- if (sci_ports[i].gs.tty != NULL) {
- sci_set_baud(&sci_ports[i], sci_ports[i].gs.baud);
- }
- }
- printk("%s: got a postchange notification for cpu %d (old %d, new %d)\n",
- __FUNCTION__, freqs->cpu, freqs->old, freqs->new);
- }
-
- return NOTIFY_OK;
-}
-
-static struct notifier_block sci_nb = { &sci_notifier, NULL, 0 };
-#endif /* CONFIG_CPU_FREQ */
-
-static struct tty_operations sci_ops = {
- .open = sci_open,
- .close = gs_close,
- .write = gs_write,
- .put_char = gs_put_char,
- .flush_chars = gs_flush_chars,
- .write_room = gs_write_room,
- .chars_in_buffer = gs_chars_in_buffer,
- .flush_buffer = gs_flush_buffer,
- .ioctl = sci_ioctl,
- .throttle = sci_throttle,
- .unthrottle = sci_unthrottle,
- .set_termios = gs_set_termios,
- .stop = gs_stop,
- .start = gs_start,
- .hangup = gs_hangup,
-#ifdef CONFIG_PROC_FS
- .read_proc = sci_read_proc,
-#endif
- .tiocmget = sci_tiocmget,
- .tiocmset = sci_tiocmset,
-};
-
-/* ********************************************************************** *
- * Here are the initialization routines. *
- * ********************************************************************** */
-
-static int sci_init_drivers(void)
-{
- int error;
- struct sci_port *port;
- sci_driver = alloc_tty_driver(SCI_NPORTS);
- if (!sci_driver)
- return -ENOMEM;
-
- sci_driver->owner = THIS_MODULE;
- sci_driver->driver_name = "sci";
- sci_driver->name = "ttySC";
- sci_driver->devfs_name = "ttsc/";
- sci_driver->major = SCI_MAJOR;
- sci_driver->minor_start = SCI_MINOR_START;
- sci_driver->type = TTY_DRIVER_TYPE_SERIAL;
- sci_driver->subtype = SERIAL_TYPE_NORMAL;
- sci_driver->init_termios = tty_std_termios;
- sci_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL | CRTSCTS;
- sci_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(sci_driver, &sci_ops);
- if ((error = tty_register_driver(sci_driver))) {
- printk(KERN_ERR "sci: Couldn't register SCI driver, error = %d\n",
- error);
- put_tty_driver(sci_driver);
- return 1;
- }
-
- for (port = &sci_ports[0]; port < &sci_ports[SCI_NPORTS]; port++) {
- port->gs.magic = SCI_MAGIC;
- port->gs.close_delay = HZ/2;
- port->gs.closing_wait = 30 * HZ;
- port->gs.rd = &sci_real_driver;
- init_waitqueue_head(&port->gs.open_wait);
- init_waitqueue_head(&port->gs.close_wait);
- port->old_cflag = 0;
- port->icount.cts = port->icount.dsr =
- port->icount.rng = port->icount.dcd = 0;
- port->icount.rx = port->icount.tx = 0;
- port->icount.frame = port->icount.parity = 0;
- port->icount.overrun = port->icount.brk = 0;
- }
-
-#ifdef CONFIG_CPU_FREQ
- /* Setup transition notifier */
- if (cpufreq_register_notifier(&sci_nb, CPUFREQ_TRANSITION_NOTIFIER) < 0) {
- printk(KERN_ERR "sci: Unable to register CPU frequency notifier\n");
- return 1;
- }
- printk("sci: CPU frequency notifier registered\n");
-#endif
- return 0;
-}
-
-static int sci_request_irq(struct sci_port *port)
-{
- int i;
-#if !defined(SCI_ONLY)
- irqreturn_t (*handlers[4])(int irq, void *p, struct pt_regs *regs) = {
- sci_er_interrupt, sci_rx_interrupt, sci_tx_interrupt,
- sci_br_interrupt,
- };
-#else
- void (*handlers[3])(int irq, void *ptr, struct pt_regs *regs) = {
- sci_er_interrupt, sci_rx_interrupt, sci_tx_interrupt,
- };
-#endif
- for (i=0; i<(sizeof(handlers)/sizeof(handlers[0])); i++) {
- if (!port->irqs[i]) continue;
- if (request_irq(port->irqs[i], handlers[i], SA_INTERRUPT,
- "sci", port)) {
- printk(KERN_ERR "sci: Cannot allocate irq.\n");
- return -ENODEV;
- }
- }
- return 0;
-}
-
-static void sci_free_irq(struct sci_port *port)
-{
- int i;
-
- for (i=0; i<4; i++) {
- if (!port->irqs[i]) continue;
- free_irq(port->irqs[i], port);
- }
-}
-
-static char banner[] __initdata =
- KERN_INFO "SuperH SCI(F) driver initialized\n";
-
-int __init sci_init(void)
-{
- struct sci_port *port;
- int j;
-
- printk("%s", banner);
-
- for (j=0; j<SCI_NPORTS; j++) {
- port = &sci_ports[j];
- printk(KERN_INFO "ttySC%d at 0x%08x is a %s\n", j, port->base,
- (port->type == PORT_SCI) ? "SCI" : "SCIF");
- }
-
- sci_init_drivers();
-
-#ifdef CONFIG_SH_STANDARD_BIOS
- sh_bios_gdb_detach();
-#endif
- return 0; /* Return -EIO when not detected */
-}
-
-module_init(sci_init);
-
-#ifdef MODULE
-#undef func_enter
-#undef func_exit
-
-void cleanup_module(void)
-{
- tty_unregister_driver(sci_driver);
- put_tty_driver(sci_driver);
-}
-
-#include "generic_serial.c"
-#endif
-
-#ifdef CONFIG_SERIAL_CONSOLE
-/*
- * Print a string to the serial port trying not to disturb
- * any possible real use of the port...
- */
-static void serial_console_write(struct console *co, const char *s,
- unsigned count)
-{
- put_string(sercons_port, s, count);
-}
-
-static struct tty_driver *serial_console_device(struct console *c, int *index)
-{
- *index = c->index;
- return sci_driver;
-}
-
-/*
- * Setup initial baud/bits/parity. We do two things here:
- * - construct a cflag setting for the first rs_open()
- * - initialize the serial port
- * Return non-zero if we didn't find a serial port.
- */
-static int __init serial_console_setup(struct console *co, char *options)
-{
- int baud = 9600;
- int bits = 8;
- int parity = 'n';
- int cflag = CREAD | HUPCL | CLOCAL;
- char *s;
-
- sercons_port = &sci_ports[co->index];
-
- if (options) {
- baud = simple_strtoul(options, NULL, 10);
- s = options;
- while(*s >= '0' && *s <= '9')
- s++;
- if (*s) parity = *s++;
- if (*s) bits = *s - '0';
- }
-
- /*
- * Now construct a cflag setting.
- */
- switch (baud) {
- case 19200:
- cflag |= B19200;
- break;
- case 38400:
- cflag |= B38400;
- break;
- case 57600:
- cflag |= B57600;
- break;
- case 115200:
- cflag |= B115200;
- break;
- case 9600:
- default:
- cflag |= B9600;
- baud = 9600;
- break;
- }
- switch (bits) {
- case 7:
- cflag |= CS7;
- break;
- default:
- case 8:
- cflag |= CS8;
- break;
- }
- switch (parity) {
- case 'o': case 'O':
- cflag |= PARODD;
- break;
- case 'e': case 'E':
- cflag |= PARENB;
- break;
- }
-
- co->cflag = cflag;
- sercons_baud = baud;
-
-#if defined(__H8300S__)
- h8300_sci_enable(sercons_port,sci_enable);
-#endif
- sci_set_termios_cflag(sercons_port, cflag, baud);
- sercons_port->old_cflag = cflag;
-
- return 0;
-}
-
-static struct console sercons = {
- .name = "ttySC",
- .write = serial_console_write,
- .device = serial_console_device,
- .setup = serial_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-/*
- * Register console.
- */
-
-#ifdef CONFIG_SH_EARLY_PRINTK
-extern void sh_console_unregister (void);
-#endif
-
-static int __init sci_console_init(void)
-{
- register_console(&sercons);
-#ifdef CONFIG_SH_EARLY_PRINTK
- /* Now that the real console is available, unregister the one we
- * used while first booting.
- */
- sh_console_unregister();
-#endif
- return 0;
-}
-console_initcall(sci_console_init);
-
-#endif /* CONFIG_SERIAL_CONSOLE */
-
-
-#ifdef CONFIG_SH_KGDB
-
-/* Initialise the KGDB serial port */
-int kgdb_sci_setup(void)
-{
- int cflag = CREAD | HUPCL | CLOCAL;
-
- if ((kgdb_portnum < 0) || (kgdb_portnum >= SCI_NPORTS))
- return -1;
-
- kgdb_sci_port = &sci_ports[kgdb_portnum];
-
- switch (kgdb_baud) {
- case 115200:
- cflag |= B115200;
- break;
- case 57600:
- cflag |= B57600;
- break;
- case 38400:
- cflag |= B38400;
- break;
- case 19200:
- cflag |= B19200;
- break;
- case 9600:
- default:
- cflag |= B9600;
- kgdb_baud = 9600;
- break;
- }
-
- switch (kgdb_bits) {
- case '7':
- cflag |= CS7;
- break;
- default:
- case '8':
- cflag |= CS8;
- break;
- }
-
- switch (kgdb_parity) {
- case 'O':
- cflag |= PARODD;
- break;
- case 'E':
- cflag |= PARENB;
- break;
- }
-
- kgdb_cflag = cflag;
- sci_set_termios_cflag(kgdb_sci_port, kgdb_cflag, kgdb_baud);
-
- /* Set up the interrupt for BREAK from GDB */
- /* Commented out for now since it may not be possible yet...
- request_irq(kgdb_sci_port->irqs[0], kgdb_break_interrupt,
- SA_INTERRUPT, "sci", kgdb_sci_port);
- sci_enable_rx_interrupts(kgdb_sci_port);
- */
-
- /* Setup complete: initialize function pointers */
- kgdb_getchar = kgdb_sci_getchar;
- kgdb_putchar = kgdb_sci_putchar;
-
- return 0;
-}
-
-#ifdef CONFIG_SH_KGDB_CONSOLE
-
-/* Create a console device */
-static kdev_t kgdb_console_device(struct console *c)
-{
- return MKDEV(SCI_MAJOR, SCI_MINOR_START + c->index);
-}
-
-/* Set up the KGDB console */
-static int __init kgdb_console_setup(struct console *co, char *options)
-{
- /* NB we ignore 'options' because we've already done the setup */
- co->cflag = kgdb_cflag;
-
- return 0;
-}
-
-/* Register the KGDB console so we get messages (d'oh!) */
-void __init kgdb_console_init(void)
-{
- register_console(&kgdbcons);
-}
-
-/* The console structure for KGDB */
-static struct console kgdbcons = {
- name:"ttySC",
- write:kgdb_console_write,
- device:kgdb_console_device,
- wait_key:serial_console_wait_key,
- setup:kgdb_console_setup,
- flags:CON_PRINTBUFFER | CON_ENABLED,
- index:-1,
-};
-
-#endif /* CONFIG_SH_KGDB_CONSOLE */
-
-#endif /* CONFIG_SH_KGDB */
+++ /dev/null
-/* $Id: sh-sci.h,v 1.7 2004/02/10 17:04:17 lethal Exp $
- *
- * linux/drivers/char/sh-sci.h
- *
- * SuperH on-chip serial module support. (SCI with no FIFO / with FIFO)
- * Copyright (C) 1999, 2000 Niibe Yutaka
- * Copyright (C) 2000 Greg Banks
- * Modified to support multiple serial ports. Stuart Menefy (May 2000).
- * Modified to support SH7760 SCIF. Paul Mundt (Oct 2003).
- * Modified to support H8/300 Serise Yoshinori Sato (Feb 2004).
- *
- */
-#include <linux/config.h>
-
-#if defined(__H8300H__) || defined(__H8300S__)
-#include <asm/gpio.h>
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
-#include <asm/regs306x.h>
-#endif
-#if defined(CONFIG_H8S2678)
-#include <asm/regs267x.h>
-#endif
-#endif
-
-/* Values for sci_port->type */
-#define PORT_SCI 0
-#define PORT_SCIF 1
-#define PORT_IRDA 1 /* XXX: temporary assignment */
-
-/* Offsets into the sci_port->irqs array */
-#define SCIx_ERI_IRQ 0
-#define SCIx_RXI_IRQ 1
-#define SCIx_TXI_IRQ 2
-
-/* ERI, RXI, TXI, BRI */
-#define SCI_IRQS { 23, 24, 25, 0 }
-#define SH3_SCIF_IRQS { 56, 57, 59, 58 }
-#define SH3_IRDA_IRQS { 52, 53, 55, 54 }
-#define SH4_SCIF_IRQS { 40, 41, 43, 42 }
-#define STB1_SCIF1_IRQS {23, 24, 26, 25 }
-#define SH7760_SCIF0_IRQS { 52, 53, 55, 54 }
-#define SH7760_SCIF1_IRQS { 72, 73, 75, 74 }
-#define SH7760_SCIF2_IRQS { 76, 77, 79, 78 }
-#define H8300H_SCI_IRQS0 {52, 53, 54, 0 }
-#define H8300H_SCI_IRQS1 {56, 57, 58, 0 }
-#define H8300H_SCI_IRQS2 {60, 61, 62, 0 }
-#define H8S_SCI_IRQS0 {88, 89, 90, 0 }
-#define H8S_SCI_IRQS1 {92, 93, 94, 0 }
-#define H8S_SCI_IRQS2 {96, 97, 98, 0 }
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7708)
-# define SCI_NPORTS 1
-# define SCI_INIT { \
- { {}, PORT_SCI, 0xfffffe80, SCI_IRQS, sci_init_pins_sci } \
-}
-# define SCSPTR 0xffffff7c /* 8 bit */
-# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
-# define SCI_ONLY
-#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709)
-# define SCI_NPORTS 3
-# define SCI_INIT { \
- { {}, PORT_SCI, 0xfffffe80, SCI_IRQS, sci_init_pins_sci }, \
- { {}, PORT_SCIF, 0xA4000150, SH3_SCIF_IRQS, sci_init_pins_scif }, \
- { {}, PORT_SCIF, 0xA4000140, SH3_IRDA_IRQS, sci_init_pins_irda } \
-}
-# define SCPCR 0xA4000116 /* 16 bit SCI and SCIF */
-# define SCPDR 0xA4000136 /* 8 bit SCI and SCIF */
-# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
-# define SCI_AND_SCIF
-#elif defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751)
-# define SCI_NPORTS 2
-# define SCI_INIT { \
- { {}, PORT_SCI, 0xffe00000, SCI_IRQS, sci_init_pins_sci }, \
- { {}, PORT_SCIF, 0xFFE80000, SH4_SCIF_IRQS, sci_init_pins_scif } \
-}
-# define SCSPTR1 0xffe0001c /* 8 bit SCI */
-# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001 /* overrun error bit */
-# define SCSCR_INIT(port) (((port)->type == PORT_SCI) ? \
- 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
- 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )
-# define SCI_AND_SCIF
-#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
-# define SCI_NPORTS 3
-# define SCI_INIT { \
- { {}, PORT_SCIF, 0xfe600000, SH7760_SCIF0_IRQS, sci_init_pins_scif }, \
- { {}, PORT_SCIF, 0xfe610000, SH7760_SCIF1_IRQS, sci_init_pins_scif }, \
- { {}, PORT_SCIF, 0xfe620000, SH7760_SCIF2_IRQS, sci_init_pins_scif } \
-}
-# define SCSPTR0 0xfe600024 /* 16 bit SCIF */
-# define SCSPTR1 0xfe610024 /* 16 bit SCIF */
-# define SCSPTR2 0xfe620024 /* 16 bit SCIF */
-# define SCIF_ORDER 0x0001 /* overrun error bit */
-# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
-# define SCIF_ONLY
-#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
-# define SCI_NPORTS 2
-# define SCI_INIT { \
- { {}, PORT_SCIF, 0xffe00000, STB1_SCIF1_IRQS, sci_init_pins_scif }, \
- { {}, PORT_SCIF, 0xffe80000, SH4_SCIF_IRQS, sci_init_pins_scif } \
-}
-# define SCSPTR1 0xffe00020 /* 16 bit SCIF */
-# define SCSPTR2 0xffe80020 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001 /* overrun error bit */
-# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
-# define SCIF_ONLY
-#elif defined(CONFIG_H83007) || defined(CONFIG_H83068)
-# define SCI_NPORTS 3
-# define SCI_INIT { \
- { {}, PORT_SCI, 0x00ffffb0, H8300H_SCI_IRQS0, sci_init_pins_sci }, \
- { {}, PORT_SCI, 0x00ffffb8, H8300H_SCI_IRQS1, sci_init_pins_sci }, \
- { {}, PORT_SCI, 0x00ffffc0, H8300H_SCI_IRQS2, sci_init_pins_sci } \
-}
-# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
-# define SCI_ONLY
-# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
-#elif defined(CONFIG_H8S2678)
-# define SCI_NPORTS 3
-# define SCI_INIT { \
- { {}, PORT_SCI, 0x00ffff78, H8S_SCI_IRQS0, sci_init_pins_sci }, \
- { {}, PORT_SCI, 0x00ffff80, H8S_SCI_IRQS1, sci_init_pins_sci }, \
- { {}, PORT_SCI, 0x00ffff88, H8S_SCI_IRQS2, sci_init_pins_sci } \
-}
-# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
-# define SCI_ONLY
-# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
-#else
-# error CPU subtype not defined
-#endif
-
-/* SCSCR */
-#define SCI_CTRL_FLAGS_TIE 0x80 /* all */
-#define SCI_CTRL_FLAGS_RIE 0x40 /* all */
-#define SCI_CTRL_FLAGS_TE 0x20 /* all */
-#define SCI_CTRL_FLAGS_RE 0x10 /* all */
-/* SCI_CTRL_FLAGS_REIE 0x08 * 7750 SCIF */
-/* SCI_CTRL_FLAGS_MPIE 0x08 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-/* SCI_CTRL_FLAGS_TEIE 0x04 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-/* SCI_CTRL_FLAGS_CKE1 0x02 * all */
-/* SCI_CTRL_FLAGS_CKE0 0x01 * 7707 SCI/SCIF, 7708 SCI, 7709 SCI/SCIF, 7750 SCI */
-
-/* SCxSR SCI */
-#define SCI_TDRE 0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_RDRF 0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_ORER 0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_FER 0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_PER 0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_TEND 0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-/* SCI_MPB 0x02 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-/* SCI_MPBT 0x01 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-
-#define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER)
-
-/* SCxSR SCIF */
-#define SCIF_ER 0x0080 /* 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_TEND 0x0040 /* 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_TDFE 0x0020 /* 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_BRK 0x0010 /* 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_FER 0x0008 /* 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_PER 0x0004 /* 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_RDF 0x0002 /* 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_DR 0x0001 /* 7707 SCIF, 7709 SCIF, 7750 SCIF */
-
-#define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
-
-#if defined(SCI_ONLY)
-# define SCxSR_TEND(port) SCI_TEND
-# define SCxSR_ERRORS(port) SCI_ERRORS
-# define SCxSR_RDxF(port) SCI_RDRF
-# define SCxSR_TDxE(port) SCI_TDRE
-# define SCxSR_ORER(port) SCI_ORER
-# define SCxSR_FER(port) SCI_FER
-# define SCxSR_PER(port) SCI_PER
-# define SCxSR_BRK(port) 0x00
-# define SCxSR_RDxF_CLEAR(port) 0xbc
-# define SCxSR_ERROR_CLEAR(port) 0xc4
-# define SCxSR_TDxE_CLEAR(port) 0x78
-# define SCxSR_BREAK_CLEAR(port) 0xc4
-#elif defined(SCIF_ONLY)
-# define SCxSR_TEND(port) SCIF_TEND
-# define SCxSR_ERRORS(port) SCIF_ERRORS
-# define SCxSR_RDxF(port) SCIF_RDF
-# define SCxSR_TDxE(port) SCIF_TDFE
-# define SCxSR_ORER(port) 0x0000
-# define SCxSR_FER(port) SCIF_FER
-# define SCxSR_PER(port) SCIF_PER
-# define SCxSR_BRK(port) SCIF_BRK
-# define SCxSR_RDxF_CLEAR(port) 0x00fc
-# define SCxSR_ERROR_CLEAR(port) 0x0073
-# define SCxSR_TDxE_CLEAR(port) 0x00df
-# define SCxSR_BREAK_CLEAR(port) 0x00e3
-#else
-# define SCxSR_TEND(port) (((port)->type == PORT_SCI) ? SCI_TEND : SCIF_TEND)
-# define SCxSR_ERRORS(port) (((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)
-# define SCxSR_RDxF(port) (((port)->type == PORT_SCI) ? SCI_RDRF : SCIF_RDF)
-# define SCxSR_TDxE(port) (((port)->type == PORT_SCI) ? SCI_TDRE : SCIF_TDFE)
-# define SCxSR_ORER(port) (((port)->type == PORT_SCI) ? SCI_ORER : 0x0000)
-# define SCxSR_FER(port) (((port)->type == PORT_SCI) ? SCI_FER : SCIF_FER)
-# define SCxSR_PER(port) (((port)->type == PORT_SCI) ? SCI_PER : SCIF_PER)
-# define SCxSR_BRK(port) (((port)->type == PORT_SCI) ? 0x00 : SCIF_BRK)
-# define SCxSR_RDxF_CLEAR(port) (((port)->type == PORT_SCI) ? 0xbc : 0x00fc)
-# define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073)
-# define SCxSR_TDxE_CLEAR(port) (((port)->type == PORT_SCI) ? 0x78 : 0x00df)
-# define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3)
-#endif
-
-/* SCFCR */
-#define SCFCR_RFRST 0x0002
-#define SCFCR_TFRST 0x0004
-#define SCFCR_MCE 0x0008
-
-#define SCI_MAJOR 204
-#define SCI_MINOR_START 8
-
-/* Generic serial flags */
-#define SCI_RX_THROTTLE 0x0000001
-
-#define SCI_MAGIC 0xbabeface
-
-/*
- * Events are used to schedule things to happen at timer-interrupt
- * time, instead of at rs interrupt time.
- */
-#define SCI_EVENT_WRITE_WAKEUP 0
-
-struct sci_port {
- struct gs_port gs;
- int type;
- unsigned int base;
- unsigned char irqs[4]; /* ERI, RXI, TXI, BRI */
- void (*init_pins)(struct sci_port* port, unsigned int cflag);
- unsigned int old_cflag;
- struct async_icount icount;
- struct work_struct tqueue;
- unsigned long event;
- int break_flag;
-};
-
-#define SCI_IN(size, offset) \
- unsigned int addr = port->base + (offset); \
- if ((size) == 8) { \
- return ctrl_inb(addr); \
- } else { \
- return ctrl_inw(addr); \
- }
-#define SCI_OUT(size, offset, value) \
- unsigned int addr = port->base + (offset); \
- if ((size) == 8) { \
- ctrl_outb(value, addr); \
- } else { \
- ctrl_outw(value, addr); \
- }
-
-#define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
- static inline unsigned int sci_##name##_in(struct sci_port* port) \
- { \
- if (port->type == PORT_SCI) { \
- SCI_IN(sci_size, sci_offset) \
- } else { \
- SCI_IN(scif_size, scif_offset); \
- } \
- } \
- static inline void sci_##name##_out(struct sci_port* port, unsigned int value) \
- { \
- if (port->type == PORT_SCI) { \
- SCI_OUT(sci_size, sci_offset, value) \
- } else { \
- SCI_OUT(scif_size, scif_offset, value); \
- } \
- }
-
-#define CPU_SCIF_FNS(name, scif_offset, scif_size) \
- static inline unsigned int sci_##name##_in(struct sci_port* port) \
- { \
- SCI_IN(scif_size, scif_offset); \
- } \
- static inline void sci_##name##_out(struct sci_port* port, unsigned int value) \
- { \
- SCI_OUT(scif_size, scif_offset, value); \
- }
-
-#define CPU_SCI_FNS(name, sci_offset, sci_size) \
- static inline unsigned int sci_##name##_in(struct sci_port* port) \
- { \
- SCI_IN(sci_size, sci_offset); \
- } \
- static inline void sci_##name##_out(struct sci_port* port, unsigned int value) \
- { \
- SCI_OUT(sci_size, sci_offset, value); \
- }
-
-#ifdef CONFIG_CPU_SH3
-#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
- sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
- h8_sci_offset, h8_sci_size) \
- CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh3_scif_offset, sh3_scif_size)
-#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
- CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size)
-#elif defined(__H8300H__) || defined(__H8300S__)
-#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
- sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
- h8_sci_offset, h8_sci_size) \
- CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size)
-#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size)
-#else
-#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
- sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
- h8_sci_offset, h8_sci_size) \
- CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
-#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
- CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
-#endif
-
-/* reg SCI/SH3 SCI/SH4 SCIF/SH3 SCIF/SH4 SCI/H8*/
-/* name off sz off sz off sz off sz off sz*/
-SCIx_FNS(SCSMR, 0x00, 8, 0x00, 8, 0x00, 8, 0x00, 16, 0x00, 8)
-SCIx_FNS(SCBRR, 0x02, 8, 0x04, 8, 0x02, 8, 0x04, 8, 0x01, 8)
-SCIx_FNS(SCSCR, 0x04, 8, 0x08, 8, 0x04, 8, 0x08, 16, 0x02, 8)
-SCIx_FNS(SCxTDR, 0x06, 8, 0x0c, 8, 0x06, 8, 0x0C, 8, 0x03, 8)
-SCIx_FNS(SCxSR, 0x08, 8, 0x10, 8, 0x08, 16, 0x10, 16, 0x04, 8)
-SCIx_FNS(SCxRDR, 0x0a, 8, 0x14, 8, 0x0A, 8, 0x14, 8, 0x05, 8)
-SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16)
-SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16)
-SCIF_FNS(SCLSR, 0, 0, 0x24, 16)
-
-#define sci_in(port, reg) sci_##reg##_in(port)
-#define sci_out(port, reg, value) sci_##reg##_out(port, value)
-
-/* H8/300 series SCI pins assignment */
-#if defined(__H8300H__) || defined(__H8300S__)
-static const struct __attribute__((packed))
-{
- int port; /* GPIO port no */
- unsigned short rx,tx; /* GPIO bit no */
-} h8300_sci_pins[] =
-{
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
- { /* SCI0 */
- .port = H8300_GPIO_P9,
- .rx = H8300_GPIO_B2,
- .tx = H8300_GPIO_B0,
- },
- { /* SCI1 */
- .port = H8300_GPIO_P9,
- .rx = H8300_GPIO_B3,
- .tx = H8300_GPIO_B1,
- },
- { /* SCI2 */
- .port = H8300_GPIO_PB,
- .rx = H8300_GPIO_B7,
- .tx = H8300_GPIO_B6,
- }
-#elif defined(CONFIG_H8S2678)
- { /* SCI0 */
- .port = H8300_GPIO_P3,
- .rx = H8300_GPIO_B2,
- .tx = H8300_GPIO_B0,
- },
- { /* SCI1 */
- .port = H8300_GPIO_P3,
- .rx = H8300_GPIO_B3,
- .tx = H8300_GPIO_B1,
- },
- { /* SCI2 */
- .port = H8300_GPIO_P5,
- .rx = H8300_GPIO_B1,
- .tx = H8300_GPIO_B0,
- }
-#endif
-};
-#endif
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7708)
-static inline int sci_rxd_in(struct sci_port *port)
-{
- if (port->base == 0xfffffe80)
- return ctrl_inb(SCSPTR)&0x01 ? 1 : 0; /* SCI */
- return 1;
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709)
-static inline int sci_rxd_in(struct sci_port *port)
-{
- if (port->base == 0xfffffe80)
- return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCI */
- if (port->base == 0xa4000150)
- return ctrl_inb(SCPDR)&0x10 ? 1 : 0; /* SCIF */
- if (port->base == 0xa4000140)
- return ctrl_inb(SCPDR)&0x04 ? 1 : 0; /* IRDA */
- return 1;
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751)
-static inline int sci_rxd_in(struct sci_port *port)
-{
-#ifndef SCIF_ONLY
- if (port->base == 0xffe00000)
- return ctrl_inb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */
-#endif
-#ifndef SCI_ONLY
- if (port->base == 0xffe80000)
- return ctrl_inw(SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */
-#endif
- return 1;
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
-static inline int sci_rxd_in(struct sci_port *port)
-{
- if (port->base == 0xfe600000)
- return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
- if (port->base == 0xfe610000)
- return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
- if (port->base == 0xfe620000)
- return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
-}
-#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
-static inline int sci_rxd_in(struct sci_port *port)
-{
- if (port->base == 0xffe00000)
- return ctrl_inw(SCSPTR1)&0x0001 ? 1 : 0; /* SCIF */
- else
- return ctrl_inw(SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */
-
-}
-#elif defined(__H8300H__) || defined(__H8300S__)
-static inline int sci_rxd_in(struct sci_port *port)
-{
- int ch = (port->base - SMR0) >> 3;
- return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0;
-}
-#endif
-
-/*
- * Values for the BitRate Register (SCBRR)
- *
- * The values are actually divisors for a frequency which can
- * be internal to the SH3 (14.7456MHz) or derived from an external
- * clock source. This driver assumes the internal clock is used;
- * to support using an external clock source, config options or
- * possibly command-line options would need to be added.
- *
- * Also, to support speeds below 2400 (why?) the lower 2 bits of
- * the SCSMR register would also need to be set to non-zero values.
- *
- * -- Greg Banks 27Feb2000
- *
- * Answer: The SCBRR register is only eight bits, and the value in
- * it gets larger with lower baud rates. At around 2400 (depending on
- * the peripherial module clock) you run out of bits. However the
- * lower two bits of SCSMR allow the module clock to be divided down,
- * scaling the value which is needed in SCBRR.
- *
- * -- Stuart Menefy - 23 May 2000
- *
- * I meant, why would anyone bother with bitrates below 2400.
- *
- * -- Greg Banks - 7Jul2000
- *
- * You "speedist"! How will I use my 110bps ASR-33 teletype with paper
- * tape reader as a console!
- *
- * -- Mitch Davis - 15 Jul 2000
- */
-
-#define PCLK (current_cpu_data.module_clock)
-
-#if !defined(__H8300H__) && !defined(__H8300S__)
-#define SCBRR_VALUE(bps) ((PCLK+16*bps)/(32*bps)-1)
-#else
-#define SCBRR_VALUE(bps) (((CONFIG_CPU_CLOCK*1000/32)/bps)-1)
-#endif
-#define BPS_2400 SCBRR_VALUE(2400)
-#define BPS_4800 SCBRR_VALUE(4800)
-#define BPS_9600 SCBRR_VALUE(9600)
-#define BPS_19200 SCBRR_VALUE(19200)
-#define BPS_38400 SCBRR_VALUE(38400)
-#define BPS_57600 SCBRR_VALUE(57600)
-#define BPS_115200 SCBRR_VALUE(115200)
-#define BPS_230400 SCBRR_VALUE(230400)
-
+++ /dev/null
-/*
- * drivers/watchdog/ixp2000_wdt.c
- *
- * Watchdog driver for Intel IXP2000 network processors
- *
- * Adapted from the IXP4xx watchdog driver by Lennert Buytenhek.
- * The original version carries these notices:
- *
- * Author: Deepak Saxena <dsaxena@plexity.net>
- *
- * Copyright 2004 (c) MontaVista, Software, Inc.
- * Based on sa1100 driver, Copyright (C) 2000 Oleg Drokin <green@crimea.edu>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/init.h>
-
-#include <asm/hardware.h>
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
-static int nowayout = 1;
-#else
-static int nowayout = 0;
-#endif
-static unsigned int heartbeat = 60; /* (secs) Default is 1 minute */
-static unsigned long wdt_status;
-
-#define WDT_IN_USE 0
-#define WDT_OK_TO_CLOSE 1
-
-static unsigned long wdt_tick_rate;
-
-static void
-wdt_enable(void)
-{
- ixp2000_reg_write(IXP2000_RESET0, *(IXP2000_RESET0) | WDT_RESET_ENABLE);
- ixp2000_reg_write(IXP2000_TWDE, WDT_ENABLE);
- ixp2000_reg_write(IXP2000_T4_CLD, heartbeat * wdt_tick_rate);
- ixp2000_reg_write(IXP2000_T4_CTL, TIMER_DIVIDER_256 | TIMER_ENABLE);
-}
-
-static void
-wdt_disable(void)
-{
- ixp2000_reg_write(IXP2000_T4_CTL, 0);
-}
-
-static void
-wdt_keepalive(void)
-{
- ixp2000_reg_write(IXP2000_T4_CLD, heartbeat * wdt_tick_rate);
-}
-
-static int
-ixp2000_wdt_open(struct inode *inode, struct file *file)
-{
- if (test_and_set_bit(WDT_IN_USE, &wdt_status))
- return -EBUSY;
-
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- wdt_enable();
-
- return nonseekable_open(inode, file);
-}
-
-static ssize_t
-ixp2000_wdt_write(struct file *file, const char *data, size_t len, loff_t *ppos)
-{
- if (len) {
- if (!nowayout) {
- size_t i;
-
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- for (i = 0; i != len; i++) {
- char c;
-
- if (get_user(c, data + i))
- return -EFAULT;
- if (c == 'V')
- set_bit(WDT_OK_TO_CLOSE, &wdt_status);
- }
- }
- wdt_keepalive();
- }
-
- return len;
-}
-
-
-static struct watchdog_info ident = {
- .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
- WDIOF_KEEPALIVEPING,
- .identity = "IXP2000 Watchdog",
-};
-
-static int
-ixp2000_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- int ret = -ENOIOCTLCMD;
- int time;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user((struct watchdog_info *)arg, &ident,
- sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- ret = put_user(0, (int *)arg);
- break;
-
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(0, (int *)arg);
- break;
-
- case WDIOC_SETTIMEOUT:
- ret = get_user(time, (int *)arg);
- if (ret)
- break;
-
- if (time <= 0 || time > 60) {
- ret = -EINVAL;
- break;
- }
-
- heartbeat = time;
- wdt_keepalive();
- /* Fall through */
-
- case WDIOC_GETTIMEOUT:
- ret = put_user(heartbeat, (int *)arg);
- break;
-
- case WDIOC_KEEPALIVE:
- wdt_enable();
- ret = 0;
- break;
- }
-
- return ret;
-}
-
-static int
-ixp2000_wdt_release(struct inode *inode, struct file *file)
-{
- if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) {
- wdt_disable();
- } else {
- printk(KERN_CRIT "WATCHDOG: Device closed unexpectdly - "
- "timer will not stop\n");
- }
-
- clear_bit(WDT_IN_USE, &wdt_status);
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- return 0;
-}
-
-
-static struct file_operations ixp2000_wdt_fops =
-{
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = ixp2000_wdt_write,
- .ioctl = ixp2000_wdt_ioctl,
- .open = ixp2000_wdt_open,
- .release = ixp2000_wdt_release,
-};
-
-static struct miscdevice ixp2000_wdt_miscdev =
-{
- .minor = WATCHDOG_MINOR,
- .name = "IXP2000 Watchdog",
- .fops = &ixp2000_wdt_fops,
-};
-
-static int __init ixp2000_wdt_init(void)
-{
- wdt_tick_rate = (*IXP2000_T1_CLD * HZ)/ 256;;
-
- return misc_register(&ixp2000_wdt_miscdev);
-}
-
-static void __exit ixp2000_wdt_exit(void)
-{
- misc_deregister(&ixp2000_wdt_miscdev);
-}
-
-module_init(ixp2000_wdt_init);
-module_exit(ixp2000_wdt_exit);
-
-MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net">);
-MODULE_DESCRIPTION("IXP2000 Network Processor Watchdog");
-
-module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 60s)");
-
-module_param(nowayout, int, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
+++ /dev/null
-/*
- * Copyright (C) 2002, 2003, 2004 Hewlett-Packard Co.
- * Khalid Aziz <khalid_aziz@hp.com>
- * Alex Williamson <alex.williamson@hp.com>
- * Bjorn Helgaas <bjorn.helgaas@hp.com>
- *
- * Parse the EFI PCDP table to locate the console device.
- */
-
-#include <linux/acpi.h>
-#include <linux/console.h>
-#include <linux/efi.h>
-#include <linux/tty.h>
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-#include <asm/io.h>
-#include <asm/serial.h>
-#include "pcdp.h"
-
-static inline int
-uart_irq_supported(int rev, struct pcdp_uart *uart)
-{
- if (rev < 3)
- return uart->pci_func & PCDP_UART_IRQ;
- return uart->flags & PCDP_UART_IRQ;
-}
-
-static inline int
-uart_pci(int rev, struct pcdp_uart *uart)
-{
- if (rev < 3)
- return uart->pci_func & PCDP_UART_PCI;
- return uart->flags & PCDP_UART_PCI;
-}
-
-static inline int
-uart_active_high_low(int rev, struct pcdp_uart *uart)
-{
- if (uart_pci(rev, uart) || uart->flags & PCDP_UART_ACTIVE_LOW)
- return ACPI_ACTIVE_LOW;
- return ACPI_ACTIVE_HIGH;
-}
-
-static inline int
-uart_edge_level(int rev, struct pcdp_uart *uart)
-{
- if (uart_pci(rev, uart))
- return ACPI_LEVEL_SENSITIVE;
- if (rev < 3 || uart->flags & PCDP_UART_EDGE_SENSITIVE)
- return ACPI_EDGE_SENSITIVE;
- return ACPI_LEVEL_SENSITIVE;
-}
-
-static void __init
-setup_serial_console(int rev, struct pcdp_uart *uart)
-{
-#ifdef CONFIG_SERIAL_8250_CONSOLE
- struct uart_port port;
- static char options[16];
- int mapsize = 64;
-
- memset(&port, 0, sizeof(port));
- port.uartclk = uart->clock_rate;
- if (!port.uartclk) /* some FW doesn't supply this */
- port.uartclk = BASE_BAUD * 16;
-
- if (uart->addr.address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
- port.mapbase = uart->addr.address;
- port.membase = ioremap(port.mapbase, mapsize);
- if (!port.membase) {
- printk(KERN_ERR "%s: couldn't ioremap 0x%lx-0x%lx\n",
- __FUNCTION__, port.mapbase, port.mapbase + mapsize);
- return;
- }
- port.iotype = UPIO_MEM;
- } else if (uart->addr.address_space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
- port.iobase = uart->addr.address;
- port.iotype = UPIO_PORT;
- } else
- return;
-
- switch (uart->pci_prog_intfc) {
- case 0x0: port.type = PORT_8250; break;
- case 0x1: port.type = PORT_16450; break;
- case 0x2: port.type = PORT_16550; break;
- case 0x3: port.type = PORT_16650; break;
- case 0x4: port.type = PORT_16750; break;
- case 0x5: port.type = PORT_16850; break;
- case 0x6: port.type = PORT_16C950; break;
- default: port.type = PORT_UNKNOWN; break;
- }
-
- port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
-
- if (uart_irq_supported(rev, uart)) {
- port.irq = acpi_register_gsi(uart->gsi,
- uart_active_high_low(rev, uart),
- uart_edge_level(rev, uart));
- port.flags |= UPF_AUTO_IRQ; /* some FW reported wrong GSI */
- if (uart_pci(rev, uart))
- port.flags |= UPF_SHARE_IRQ;
- }
-
- if (early_serial_setup(&port) < 0)
- return;
-
- snprintf(options, sizeof(options), "%lun%d", uart->baud,
- uart->bits ? uart->bits : 8);
- add_preferred_console("ttyS", port.line, options);
-
- printk(KERN_INFO "PCDP: serial console at %s 0x%lx (ttyS%d, options %s)\n",
- port.iotype == UPIO_MEM ? "MMIO" : "I/O",
- uart->addr.address, port.line, options);
-#endif
-}
-
-static void __init
-setup_vga_console(struct pcdp_vga *vga)
-{
-#ifdef CONFIG_VT
-#ifdef CONFIG_VGA_CONSOLE
- if (efi_mem_type(0xA0000) == EFI_CONVENTIONAL_MEMORY) {
- printk(KERN_ERR "PCDP: VGA selected, but frame buffer is not MMIO!\n");
- return;
- }
-
- conswitchp = &vga_con;
- printk(KERN_INFO "PCDP: VGA console\n");
-#endif
-#endif
-}
-
-void __init
-efi_setup_pcdp_console(char *cmdline)
-{
- struct pcdp *pcdp;
- struct pcdp_uart *uart;
- struct pcdp_device *dev, *end;
- int i, serial = 0;
-
- pcdp = efi.hcdp;
- if (!pcdp)
- return;
-
- printk(KERN_INFO "PCDP: v%d at 0x%p\n", pcdp->rev, pcdp);
-
- if (pcdp->rev < 3) {
- if (strstr(cmdline, "console=ttyS0") || efi_uart_console_only())
- serial = 1;
- }
-
- for (i = 0, uart = pcdp->uart; i < pcdp->num_uarts; i++, uart++) {
- if (uart->flags & PCDP_UART_PRIMARY_CONSOLE || serial) {
- if (uart->type == PCDP_CONSOLE_UART) {
- setup_serial_console(pcdp->rev, uart);
- return;
- }
- }
- }
-
- end = (struct pcdp_device *) ((u8 *) pcdp + pcdp->length);
- for (dev = (struct pcdp_device *) (pcdp->uart + pcdp->num_uarts);
- dev < end;
- dev = (struct pcdp_device *) ((u8 *) dev + dev->length)) {
- if (dev->flags & PCDP_PRIMARY_CONSOLE) {
- if (dev->type == PCDP_CONSOLE_VGA) {
- setup_vga_console((struct pcdp_vga *) dev);
- return;
- }
- }
- }
-}
-
-#ifdef CONFIG_IA64_EARLY_PRINTK_UART
-unsigned long
-hcdp_early_uart (void)
-{
- efi_system_table_t *systab;
- efi_config_table_t *config_tables;
- unsigned long addr = 0;
- struct pcdp *pcdp = 0;
- struct pcdp_uart *uart;
- int i;
-
- systab = (efi_system_table_t *) ia64_boot_param->efi_systab;
- if (!systab)
- return 0;
- systab = __va(systab);
-
- config_tables = (efi_config_table_t *) systab->tables;
- if (!config_tables)
- return 0;
- config_tables = __va(config_tables);
-
- for (i = 0; i < systab->nr_tables; i++) {
- if (efi_guidcmp(config_tables[i].guid, HCDP_TABLE_GUID) == 0) {
- pcdp = (struct pcdp *) config_tables[i].table;
- break;
- }
- }
- if (!pcdp)
- return 0;
- pcdp = __va(pcdp);
-
- for (i = 0, uart = pcdp->uart; i < pcdp->num_uarts; i++, uart++) {
- if (uart->type == PCDP_CONSOLE_UART) {
- addr = uart->addr.address;
- break;
- }
- }
- return addr;
-}
-#endif /* CONFIG_IA64_EARLY_PRINTK_UART */
+++ /dev/null
-/*
- * Copyright (C) 2002, 2004 Hewlett-Packard Co.
- * Khalid Aziz <khalid_aziz@hp.com>
- * Bjorn Helgaas <bjorn.helgaas@hp.com>
- *
- * Definitions for PCDP-defined console devices
- *
- * v1.0a: http://www.dig64.org/specifications/DIG64_HCDPv10a_01.pdf
- * v2.0: http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf
- */
-
-#define PCDP_CONSOLE 0
-#define PCDP_DEBUG 1
-#define PCDP_CONSOLE_OUTPUT 2
-#define PCDP_CONSOLE_INPUT 3
-
-#define PCDP_UART (0 << 3)
-#define PCDP_VGA (1 << 3)
-#define PCDP_USB (2 << 3)
-
-/* pcdp_uart.type and pcdp_device.type */
-#define PCDP_CONSOLE_UART (PCDP_UART | PCDP_CONSOLE)
-#define PCDP_DEBUG_UART (PCDP_UART | PCDP_DEBUG)
-#define PCDP_CONSOLE_VGA (PCDP_VGA | PCDP_CONSOLE_OUTPUT)
-#define PCDP_CONSOLE_USB (PCDP_USB | PCDP_CONSOLE_INPUT)
-
-/* pcdp_uart.flags */
-#define PCDP_UART_EDGE_SENSITIVE (1 << 0)
-#define PCDP_UART_ACTIVE_LOW (1 << 1)
-#define PCDP_UART_PRIMARY_CONSOLE (1 << 2)
-#define PCDP_UART_IRQ (1 << 6) /* in pci_func for rev < 3 */
-#define PCDP_UART_PCI (1 << 7) /* in pci_func for rev < 3 */
-
-struct pcdp_uart {
- u8 type;
- u8 bits;
- u8 parity;
- u8 stop_bits;
- u8 pci_seg;
- u8 pci_bus;
- u8 pci_dev;
- u8 pci_func;
- u64 baud;
- struct acpi_generic_address addr;
- u16 pci_dev_id;
- u16 pci_vendor_id;
- u32 gsi;
- u32 clock_rate;
- u8 pci_prog_intfc;
- u8 flags;
-};
-
-struct pcdp_vga {
- u8 count; /* address space descriptors */
-};
-
-/* pcdp_device.flags */
-#define PCDP_PRIMARY_CONSOLE 1
-
-struct pcdp_device {
- u8 type;
- u8 flags;
- u16 length;
- u16 efi_index;
-};
-
-struct pcdp {
- u8 signature[4];
- u32 length;
- u8 rev; /* PCDP v2.0 is rev 3 */
- u8 chksum;
- u8 oemid[6];
- u8 oem_tabid[8];
- u32 oem_rev;
- u8 creator_id[4];
- u32 creator_rev;
- u32 num_uarts;
- struct pcdp_uart uart[0]; /* actual size is num_uarts */
- /* remainder of table is pcdp_device structures */
-};
+++ /dev/null
-/*
- * drivers/i2c/i2c-adap-ixp42x.c
- *
- * Intel's IXP42x XScale NPU chipsets (IXP420, 421, 422, 425) do not have
- * an on board I2C controller but provide 16 GPIO pins that are often
- * used to create an I2C bus. This driver provides an i2c_adapter
- * interface that plugs in under algo_bit and drives the GPIO pins
- * as instructed by the alogorithm driver.
- *
- * Author: Deepak Saxena <dsaxena@plexity.net>
- *
- * Copyright (c) 2003-2004 MontaVista Software Inc.
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- *
- * NOTE: Since different platforms will use different GPIO pins for
- * I2C, this driver uses an IXP42x-specific platform_data
- * pointer to pass the GPIO numbers to the driver. This
- * allows us to support all the different IXP42x platforms
- * w/o having to put #ifdefs in this driver.
- *
- * See arch/arm/mach-ixp42x/ixdp425.c for an example of building a
- * device list and filling in the ixp42x_i2c_pins data structure
- * that is passed as the platform_data to this driver.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/i2c.h>
-
-#include <asm/hardware.h> /* Pick up IXP42x-specific bits */
-
-static inline int ixp42x_scl_pin(void *data)
-{
- return ((struct ixp42x_i2c_pins*)data)->scl_pin;
-}
-
-static inline int ixp42x_sda_pin(void *data)
-{
- return ((struct ixp42x_i2c_pins*)data)->sda_pin;
-}
-
-static void ixp42x_bit_setscl(void *data, int val)
-{
- gpio_line_set(ixp42x_scl_pin(data), 0);
- gpio_line_config(ixp42x_scl_pin(data),
- val ? IXP425_GPIO_IN : IXP425_GPIO_OUT );
-}
-
-static void ixp42x_bit_setsda(void *data, int val)
-{
- gpio_line_set(ixp42x_sda_pin(data), 0);
- gpio_line_config(ixp42x_sda_pin(data),
- val ? IXP425_GPIO_IN : IXP425_GPIO_OUT );
-}
-
-static int ixp42x_bit_getscl(void *data)
-{
- int scl;
-
- gpio_line_config(ixp42x_scl_pin(data), IXP425_GPIO_IN );
- gpio_line_get(ixp42x_scl_pin(data), &scl);
-
- return scl;
-}
-
-static int ixp42x_bit_getsda(void *data)
-{
- int sda;
-
- gpio_line_config(ixp42x_sda_pin(data), IXP425_GPIO_IN );
- gpio_line_get(ixp42x_sda_pin(data), &sda);
-
- return sda;
-}
-
-struct ixp42x_i2c_data {
- struct ixp42x_i2c_pins *gpio_pins;
- struct i2c_adapter adapter;
- struct i2c_algo_bit_data algo_data;
-};
-
-static int ixp42x_i2c_remove(struct device *dev)
-{
- struct platform_device *plat_dev = to_platform_device(dev);
- struct ixp42x_i2c_data *drv_data = dev_get_drvdata(&plat_dev->dev);
-
- dev_set_drvdata(&plat_dev->dev, NULL);
-
- i2c_bit_del_bus(&drv_data->adapter);
-
- kfree(drv_data);
-
- return 0;
-}
-
-static int ixp42x_i2c_probe(struct device *dev)
-{
- int err;
- struct platform_device *plat_dev = to_platform_device(dev);
- struct ixp42x_i2c_pins *gpio = plat_dev->dev.platform_data;
- struct ixp42x_i2c_data *drv_data =
- kmalloc(sizeof(struct ixp42x_i2c_data), GFP_KERNEL);
-
- if(!drv_data)
- return -ENOMEM;
-
- memzero(drv_data, sizeof(struct ixp42x_i2c_data));
- drv_data->gpio_pins = gpio;
-
- /*
- * We could make a lot of these structures static, but
- * certain platforms may have multiple GPIO-based I2C
- * buses for various device domains, so we need per-device
- * algo_data->data.
- */
- drv_data->algo_data.data = gpio;
- drv_data->algo_data.setsda = ixp42x_bit_setsda;
- drv_data->algo_data.setscl = ixp42x_bit_setscl;
- drv_data->algo_data.getsda = ixp42x_bit_getsda;
- drv_data->algo_data.getscl = ixp42x_bit_getscl;
- drv_data->algo_data.udelay = 10;
- drv_data->algo_data.mdelay = 10;
- drv_data->algo_data.timeout = 100;
-
- drv_data->adapter.id = I2C_HW_B_IXP425,
- drv_data->adapter.algo_data = &drv_data->algo_data,
-
- drv_data->adapter.dev.parent = &plat_dev->dev;
-
- gpio_line_config(gpio->scl_pin, IXP425_GPIO_IN);
- gpio_line_config(gpio->sda_pin, IXP425_GPIO_IN);
- gpio_line_set(gpio->scl_pin, 0);
- gpio_line_set(gpio->sda_pin, 0);
-
- if ((err = i2c_bit_add_bus(&drv_data->adapter) != 0)) {
- printk(KERN_ERR "ERROR: Could not install %s\n", dev->bus_id);
-
- kfree(drv_data);
- return err;
- }
-
- dev_set_drvdata(&plat_dev->dev, drv_data);
-
- return 0;
-}
-
-static struct device_driver ixp42x_i2c_driver = {
- .name = "IXP42X-I2C",
- .bus = &platform_bus_type,
- .probe = ixp42x_i2c_probe,
- .remove = ixp42x_i2c_remove,
-};
-
-static int __init ixp42x_i2c_init(void)
-{
- return driver_register(&ixp42x_i2c_driver);
-}
-
-static void __exit ixp42x_i2c_exit(void)
-{
- driver_unregister(&ixp42x_i2c_driver);
-}
-
-module_init(ixp42x_i2c_init);
-module_exit(ixp42x_i2c_exit);
-
-MODULE_DESCRIPTION("GPIO-based I2C driver for IXP42x systems");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>");
-
+++ /dev/null
-/*
- * adm1025.c
- *
- * Copyright (C) 2000 Chen-Yuan Wu <gwu@esoft.com>
- * Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
- *
- * The ADM1025 is a sensor chip made by Analog Devices. It reports up to 6
- * voltages (including its own power source) and up to two temperatures
- * (its own plus up to one external one). Voltages are scaled internally
- * (which is not the common way) with ratios such that the nominal value
- * of each voltage correspond to a register value of 192 (which means a
- * resolution of about 0.5% of the nominal value). Temperature values are
- * reported with a 1 deg resolution and a 3 deg accuracy. Complete
- * datasheet can be obtained from Analog's website at:
- * http://www.analog.com/Analog_Root/productPage/productHome/0,2121,ADM1025,00.html
- *
- * This driver also supports the ADM1025A, which differs from the ADM1025
- * only in that it has "open-drain VID inputs while the ADM1025 has
- * on-chip 100k pull-ups on the VID inputs". It doesn't make any
- * difference for us.
- *
- * This driver also supports the NE1619, a sensor chip made by Philips.
- * That chip is similar to the ADM1025A, with a few differences. The only
- * difference that matters to us is that the NE1619 has only two possible
- * addresses while the ADM1025A has a third one. Complete datasheet can be
- * obtained from Philips's website at:
- * http://www.semiconductors.philips.com/pip/NE1619DS.html
- *
- * Since the ADM1025 was the first chipset supported by this driver, most
- * comments will refer to this chipset, but are actually general and
- * concern all supported chipsets, unless mentioned otherwise.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/i2c-sensor.h>
-#include <linux/i2c-vid.h>
-
-/*
- * Addresses to scan
- * ADM1025 and ADM1025A have three possible addresses: 0x2c, 0x2d and 0x2e.
- * NE1619 has two possible addresses: 0x2c and 0x2d.
- */
-
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
-static unsigned short normal_i2c_range[] = { 0x2c, 0x2e, I2C_CLIENT_END };
-static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
-static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
-
-/*
- * Insmod parameters
- */
-
-SENSORS_INSMOD_2(adm1025, ne1619);
-
-/*
- * The ADM1025 registers
- */
-
-#define ADM1025_REG_MAN_ID 0x3E
-#define ADM1025_REG_CHIP_ID 0x3F
-#define ADM1025_REG_CONFIG 0x40
-#define ADM1025_REG_STATUS1 0x41
-#define ADM1025_REG_STATUS2 0x42
-#define ADM1025_REG_IN(nr) (0x20 + (nr))
-#define ADM1025_REG_IN_MAX(nr) (0x2B + (nr) * 2)
-#define ADM1025_REG_IN_MIN(nr) (0x2C + (nr) * 2)
-#define ADM1025_REG_TEMP(nr) (0x26 + (nr))
-#define ADM1025_REG_TEMP_HIGH(nr) (0x37 + (nr) * 2)
-#define ADM1025_REG_TEMP_LOW(nr) (0x38 + (nr) * 2)
-#define ADM1025_REG_VID 0x47
-#define ADM1025_REG_VID4 0x49
-
-/*
- * Conversions and various macros
- * The ADM1025 uses signed 8-bit values for temperatures.
- */
-
-static int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
-
-#define IN_FROM_REG(reg,scale) (((reg) * (scale) + 96) / 192)
-#define IN_TO_REG(val,scale) ((val) <= 0 ? 0 : \
- (val) * 192 >= (scale) * 255 ? 255 : \
- ((val) * 192 + (scale)/2) / (scale))
-
-#define TEMP_FROM_REG(reg) ((reg) * 1000)
-#define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \
- (val) >= 126500 ? 127 : \
- (((val) < 0 ? (val)-500 : (val)+500) / 1000))
-
-/*
- * Functions declaration
- */
-
-static int adm1025_attach_adapter(struct i2c_adapter *adapter);
-static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind);
-static void adm1025_init_client(struct i2c_client *client);
-static int adm1025_detach_client(struct i2c_client *client);
-static struct adm1025_data *adm1025_update_device(struct device *dev);
-
-/*
- * Driver data (common to all clients)
- */
-
-static struct i2c_driver adm1025_driver = {
- .owner = THIS_MODULE,
- .name = "adm1025",
- .id = I2C_DRIVERID_ADM1025,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = adm1025_attach_adapter,
- .detach_client = adm1025_detach_client,
-};
-
-/*
- * Client data (each client gets its own)
- */
-
-struct adm1025_data {
- struct i2c_client client;
- struct semaphore update_lock;
- char valid; /* zero until following fields are valid */
- unsigned long last_updated; /* in jiffies */
-
- u8 in[6]; /* register value */
- u8 in_max[6]; /* register value */
- u8 in_min[6]; /* register value */
- s8 temp[2]; /* register value */
- s8 temp_min[2]; /* register value */
- s8 temp_max[2]; /* register value */
- u16 alarms; /* register values, combined */
- u8 vid; /* register values, combined */
- u8 vrm;
-};
-
-/*
- * Internal variables
- */
-
-static int adm1025_id = 0;
-
-/*
- * Sysfs stuff
- */
-
-#define show_in(offset) \
-static ssize_t show_in##offset(struct device *dev, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
- in_scale[offset])); \
-} \
-static ssize_t show_in##offset##_min(struct device *dev, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
- in_scale[offset])); \
-} \
-static ssize_t show_in##offset##_max(struct device *dev, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
- in_scale[offset])); \
-} \
-static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL);
-show_in(0);
-show_in(1);
-show_in(2);
-show_in(3);
-show_in(4);
-show_in(5);
-
-#define show_temp(offset) \
-static ssize_t show_temp##offset(struct device *dev, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
-} \
-static ssize_t show_temp##offset##_min(struct device *dev, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[offset-1])); \
-} \
-static ssize_t show_temp##offset##_max(struct device *dev, char *buf) \
-{ \
- struct adm1025_data *data = adm1025_update_device(dev); \
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[offset-1])); \
-}\
-static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp##offset, NULL);
-show_temp(1);
-show_temp(2);
-
-#define set_in(offset) \
-static ssize_t set_in##offset##_min(struct device *dev, const char *buf, \
- size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm1025_data *data = i2c_get_clientdata(client); \
- data->in_min[offset] = IN_TO_REG(simple_strtol(buf, NULL, 10), \
- in_scale[offset]); \
- i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MIN(offset), \
- data->in_min[offset]); \
- return count; \
-} \
-static ssize_t set_in##offset##_max(struct device *dev, const char *buf, \
- size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm1025_data *data = i2c_get_clientdata(client); \
- data->in_max[offset] = IN_TO_REG(simple_strtol(buf, NULL, 10), \
- in_scale[offset]); \
- i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(offset), \
- data->in_max[offset]); \
- return count; \
-} \
-static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
- show_in##offset##_min, set_in##offset##_min); \
-static DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
- show_in##offset##_max, set_in##offset##_max);
-set_in(0);
-set_in(1);
-set_in(2);
-set_in(3);
-set_in(4);
-set_in(5);
-
-#define set_temp(offset) \
-static ssize_t set_temp##offset##_min(struct device *dev, const char *buf, \
- size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm1025_data *data = i2c_get_clientdata(client); \
- data->temp_min[offset-1] = TEMP_TO_REG(simple_strtol(buf, NULL, 10)); \
- i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_LOW(offset-1), \
- data->temp_min[offset-1]); \
- return count; \
-} \
-static ssize_t set_temp##offset##_max(struct device *dev, const char *buf, \
- size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm1025_data *data = i2c_get_clientdata(client); \
- data->temp_max[offset-1] = TEMP_TO_REG(simple_strtol(buf, NULL, 10)); \
- i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(offset-1), \
- data->temp_max[offset-1]); \
- return count; \
-} \
-static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
- show_temp##offset##_min, set_temp##offset##_min); \
-static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
- show_temp##offset##_max, set_temp##offset##_max);
-set_temp(1);
-set_temp(2);
-
-static ssize_t show_alarms(struct device *dev, char *buf)
-{
- struct adm1025_data *data = adm1025_update_device(dev);
- return sprintf(buf, "%u\n", data->alarms);
-}
-static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
-
-static ssize_t show_vid(struct device *dev, char *buf)
-{
- struct adm1025_data *data = adm1025_update_device(dev);
- return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
-}
-static DEVICE_ATTR(in1_ref, S_IRUGO, show_vid, NULL);
-
-static ssize_t show_vrm(struct device *dev, char *buf)
-{
- struct adm1025_data *data = adm1025_update_device(dev);
- return sprintf(buf, "%u\n", data->vrm);
-}
-static ssize_t set_vrm(struct device *dev, const char *buf, size_t count)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1025_data *data = i2c_get_clientdata(client);
- data->vrm = simple_strtoul(buf, NULL, 10);
- return count;
-}
-static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
-
-/*
- * Real code
- */
-
-static int adm1025_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_detect(adapter, &addr_data, adm1025_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
-{
- struct i2c_client *new_client;
- struct adm1025_data *data;
- int err = 0;
- const char *name = "";
- u8 config;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- goto exit;
-
- if (!(data = kmalloc(sizeof(struct adm1025_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
- memset(data, 0, sizeof(struct adm1025_data));
-
- /* The common I2C client data is placed right before the
- ADM1025-specific data. */
- new_client = &data->client;
- i2c_set_clientdata(new_client, data);
- new_client->addr = address;
- new_client->adapter = adapter;
- new_client->driver = &adm1025_driver;
- new_client->flags = 0;
-
- /*
- * Now we do the remaining detection. A negative kind means that
- * the driver was loaded with no force parameter (default), so we
- * must both detect and identify the chip. A zero kind means that
- * the driver was loaded with the force parameter, the detection
- * step shall be skipped. A positive kind means that the driver
- * was loaded with the force parameter and a given kind of chip is
- * requested, so both the detection and the identification steps
- * are skipped.
- */
- config = i2c_smbus_read_byte_data(new_client, ADM1025_REG_CONFIG);
- if (kind < 0) { /* detection */
- if ((config & 0x80) != 0x00
- || (i2c_smbus_read_byte_data(new_client,
- ADM1025_REG_STATUS1) & 0xC0) != 0x00
- || (i2c_smbus_read_byte_data(new_client,
- ADM1025_REG_STATUS2) & 0xBC) != 0x00) {
- dev_dbg(&adapter->dev,
- "ADM1025 detection failed at 0x%02x.\n",
- address);
- goto exit_free;
- }
- }
-
- if (kind <= 0) { /* identification */
- u8 man_id, chip_id;
-
- man_id = i2c_smbus_read_byte_data(new_client,
- ADM1025_REG_MAN_ID);
- chip_id = i2c_smbus_read_byte_data(new_client,
- ADM1025_REG_CHIP_ID);
-
- if (man_id == 0x41) { /* Analog Devices */
- if ((chip_id & 0xF0) == 0x20) { /* ADM1025/ADM1025A */
- kind = adm1025;
- }
- } else
- if (man_id == 0xA1) { /* Philips */
- if (address != 0x2E
- && (chip_id & 0xF0) == 0x20) { /* NE1619 */
- kind = ne1619;
- }
- }
-
- if (kind <= 0) { /* identification failed */
- dev_info(&adapter->dev,
- "Unsupported chip (man_id=0x%02X, "
- "chip_id=0x%02X).\n", man_id, chip_id);
- goto exit_free;
- }
- }
-
- if (kind == adm1025) {
- name = "adm1025";
- } else if (kind == ne1619) {
- name = "ne1619";
- }
-
- /* We can fill in the remaining client fields */
- strlcpy(new_client->name, name, I2C_NAME_SIZE);
- new_client->id = adm1025_id++;
- data->valid = 0;
- init_MUTEX(&data->update_lock);
-
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(new_client)))
- goto exit_free;
-
- /* Initialize the ADM1025 chip */
- adm1025_init_client(new_client);
-
- /* Register sysfs hooks */
- device_create_file(&new_client->dev, &dev_attr_in0_input);
- device_create_file(&new_client->dev, &dev_attr_in1_input);
- device_create_file(&new_client->dev, &dev_attr_in2_input);
- device_create_file(&new_client->dev, &dev_attr_in3_input);
- device_create_file(&new_client->dev, &dev_attr_in5_input);
- device_create_file(&new_client->dev, &dev_attr_in0_min);
- device_create_file(&new_client->dev, &dev_attr_in1_min);
- device_create_file(&new_client->dev, &dev_attr_in2_min);
- device_create_file(&new_client->dev, &dev_attr_in3_min);
- device_create_file(&new_client->dev, &dev_attr_in5_min);
- device_create_file(&new_client->dev, &dev_attr_in0_max);
- device_create_file(&new_client->dev, &dev_attr_in1_max);
- device_create_file(&new_client->dev, &dev_attr_in2_max);
- device_create_file(&new_client->dev, &dev_attr_in3_max);
- device_create_file(&new_client->dev, &dev_attr_in5_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_input);
- device_create_file(&new_client->dev, &dev_attr_temp2_input);
- device_create_file(&new_client->dev, &dev_attr_temp1_min);
- device_create_file(&new_client->dev, &dev_attr_temp2_min);
- device_create_file(&new_client->dev, &dev_attr_temp1_max);
- device_create_file(&new_client->dev, &dev_attr_temp2_max);
- device_create_file(&new_client->dev, &dev_attr_alarms);
- device_create_file(&new_client->dev, &dev_attr_in1_ref);
- device_create_file(&new_client->dev, &dev_attr_vrm);
-
- /* Pin 11 is either in4 (+12V) or VID4 */
- if (!(config & 0x20)) {
- device_create_file(&new_client->dev, &dev_attr_in4_input);
- device_create_file(&new_client->dev, &dev_attr_in4_min);
- device_create_file(&new_client->dev, &dev_attr_in4_max);
- }
-
- return 0;
-
-exit_free:
- kfree(data);
-exit:
- return err;
-}
-
-static void adm1025_init_client(struct i2c_client *client)
-{
- u8 reg;
- struct adm1025_data *data = i2c_get_clientdata(client);
- int i;
-
- data->vrm = 82;
-
- /*
- * Set high limits
- * Usually we avoid setting limits on driver init, but it happens
- * that the ADM1025 comes with stupid default limits (all registers
- * set to 0). In case the chip has not gone through any limit
- * setting yet, we better set the high limits to the max so that
- * no alarm triggers.
- */
- for (i=0; i<6; i++) {
- reg = i2c_smbus_read_byte_data(client,
- ADM1025_REG_IN_MAX(i));
- if (reg == 0)
- i2c_smbus_write_byte_data(client,
- ADM1025_REG_IN_MAX(i),
- 0xFF);
- }
- for (i=0; i<2; i++) {
- reg = i2c_smbus_read_byte_data(client,
- ADM1025_REG_TEMP_HIGH(i));
- if (reg == 0)
- i2c_smbus_write_byte_data(client,
- ADM1025_REG_TEMP_HIGH(i),
- 0x7F);
- }
-
- /*
- * Start the conversions
- */
- reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
- if (!(reg & 0x01))
- i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG,
- (reg&0x7E)|0x01);
-}
-
-static int adm1025_detach_client(struct i2c_client *client)
-{
- int err;
-
- if ((err = i2c_detach_client(client))) {
- dev_err(&client->dev, "Client deregistration failed, "
- "client not detached.\n");
- return err;
- }
-
- kfree(i2c_get_clientdata(client));
- return 0;
-}
-
-static struct adm1025_data *adm1025_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1025_data *data = i2c_get_clientdata(client);
-
- down(&data->update_lock);
-
- if ((jiffies - data->last_updated > HZ * 2) ||
- (jiffies < data->last_updated) ||
- !data->valid) {
- int i;
-
- dev_dbg(&client->dev, "Updating data.\n");
- for (i=0; i<6; i++) {
- data->in[i] = i2c_smbus_read_byte_data(client,
- ADM1025_REG_IN(i));
- data->in_min[i] = i2c_smbus_read_byte_data(client,
- ADM1025_REG_IN_MIN(i));
- data->in_max[i] = i2c_smbus_read_byte_data(client,
- ADM1025_REG_IN_MAX(i));
- }
- for (i=0; i<2; i++) {
- data->temp[i] = i2c_smbus_read_byte_data(client,
- ADM1025_REG_TEMP(i));
- data->temp_min[i] = i2c_smbus_read_byte_data(client,
- ADM1025_REG_TEMP_LOW(i));
- data->temp_max[i] = i2c_smbus_read_byte_data(client,
- ADM1025_REG_TEMP_HIGH(i));
- }
- data->alarms = i2c_smbus_read_byte_data(client,
- ADM1025_REG_STATUS1)
- | (i2c_smbus_read_byte_data(client,
- ADM1025_REG_STATUS2) << 8);
- data->vid = (i2c_smbus_read_byte_data(client,
- ADM1025_REG_VID) & 0x0f)
- | ((i2c_smbus_read_byte_data(client,
- ADM1025_REG_VID4) & 0x01) << 4);
-
- data->last_updated = jiffies;
- data->valid = 1;
- }
-
- up(&data->update_lock);
-
- return data;
-}
-
-static int __init sensors_adm1025_init(void)
-{
- return i2c_add_driver(&adm1025_driver);
-}
-
-static void __exit sensors_adm1025_exit(void)
-{
- i2c_del_driver(&adm1025_driver);
-}
-
-MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
-MODULE_DESCRIPTION("ADM1025 driver");
-MODULE_LICENSE("GPL");
-
-module_init(sensors_adm1025_init);
-module_exit(sensors_adm1025_exit);
+++ /dev/null
-/*
- adm1031.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Based on lm75.c and lm85.c
- Supports adm1030 / adm1031
- Copyright (C) 2004 Alexandre d'Alton <alex@alexdalton.org>
- Reworked by Jean Delvare <khali@linux-fr.org>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/i2c-sensor.h>
-
-/* Following macros takes channel parameter starting from 0 to 2 */
-#define ADM1031_REG_FAN_SPEED(nr) (0x08 + (nr))
-#define ADM1031_REG_FAN_DIV(nr) (0x20 + (nr))
-#define ADM1031_REG_PWM (0x22)
-#define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr))
-
-#define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4*(nr))
-#define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4*(nr))
-#define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4*(nr))
-
-#define ADM1031_REG_TEMP(nr) (0xa + (nr))
-#define ADM1031_REG_AUTO_TEMP(nr) (0x24 + (nr))
-
-#define ADM1031_REG_STATUS(nr) (0x2 + (nr))
-
-#define ADM1031_REG_CONF1 0x0
-#define ADM1031_REG_CONF2 0x1
-#define ADM1031_REG_EXT_TEMP 0x6
-
-#define ADM1031_CONF1_MONITOR_ENABLE 0x01 /* Monitoring enable */
-#define ADM1031_CONF1_PWM_INVERT 0x08 /* PWM Invert */
-#define ADM1031_CONF1_AUTO_MODE 0x80 /* Auto FAN */
-
-#define ADM1031_CONF2_PWM1_ENABLE 0x01
-#define ADM1031_CONF2_PWM2_ENABLE 0x02
-#define ADM1031_CONF2_TACH1_ENABLE 0x04
-#define ADM1031_CONF2_TACH2_ENABLE 0x08
-#define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan))
-
-/* Addresses to scan */
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
-static unsigned short normal_i2c_range[] = { 0x2c, 0x2e, I2C_CLIENT_END };
-static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
-static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
-
-/* Insmod parameters */
-SENSORS_INSMOD_2(adm1030, adm1031);
-
-typedef u8 auto_chan_table_t[8][2];
-
-/* Each client has this additional data */
-struct adm1031_data {
- struct i2c_client client;
- struct semaphore update_lock;
- int chip_type;
- char valid; /* !=0 if following fields are valid */
- unsigned long last_updated; /* In jiffies */
- /* The chan_select_table contains the possible configurations for
- * auto fan control.
- */
- auto_chan_table_t *chan_select_table;
- u16 alarm;
- u8 conf1;
- u8 conf2;
- u8 fan[2];
- u8 fan_div[2];
- u8 fan_min[2];
- u8 pwm[2];
- u8 old_pwm[2];
- s8 temp[3];
- u8 ext_temp[3];
- u8 auto_temp[3];
- u8 auto_temp_min[3];
- u8 auto_temp_off[3];
- u8 auto_temp_max[3];
- s8 temp_min[3];
- s8 temp_max[3];
- s8 temp_crit[3];
-};
-
-static int adm1031_attach_adapter(struct i2c_adapter *adapter);
-static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind);
-static void adm1031_init_client(struct i2c_client *client);
-static int adm1031_detach_client(struct i2c_client *client);
-static struct adm1031_data *adm1031_update_device(struct device *dev);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver adm1031_driver = {
- .owner = THIS_MODULE,
- .name = "adm1031",
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = adm1031_attach_adapter,
- .detach_client = adm1031_detach_client,
-};
-
-static int adm1031_id;
-
-static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg)
-{
- return i2c_smbus_read_byte_data(client, reg);
-}
-
-static inline int
-adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
-{
- return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-
-#define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \
- ((val + 500) / 1000)))
-
-#define TEMP_FROM_REG(val) ((val) * 1000)
-
-#define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125)
-
-#define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0)
-
-static int FAN_TO_REG(int reg, int div)
-{
- int tmp;
- tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div);
- return tmp > 255 ? 255 : tmp;
-}
-
-#define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6))
-
-#define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4)
-#define PWM_FROM_REG(val) ((val) << 4)
-
-#define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7)
-#define FAN_CHAN_TO_REG(val, reg) \
- (((reg) & 0x1F) | (((val) << 5) & 0xe0))
-
-#define AUTO_TEMP_MIN_TO_REG(val, reg) \
- ((((val)/500) & 0xf8)|((reg) & 0x7))
-#define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7)))
-#define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2))
-
-#define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2)
-
-#define AUTO_TEMP_OFF_FROM_REG(reg) \
- (AUTO_TEMP_MIN_FROM_REG(reg) - 5000)
-
-#define AUTO_TEMP_MAX_FROM_REG(reg) \
- (AUTO_TEMP_RANGE_FROM_REG(reg) + \
- AUTO_TEMP_MIN_FROM_REG(reg))
-
-static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm)
-{
- int ret;
- int range = val - AUTO_TEMP_MIN_FROM_REG(reg);
-
- range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm);
- ret = ((reg & 0xf8) |
- (range < 10000 ? 0 :
- range < 20000 ? 1 :
- range < 40000 ? 2 : range < 80000 ? 3 : 4));
- return ret;
-}
-
-/* FAN auto control */
-#define GET_FAN_AUTO_BITFIELD(data, idx) \
- (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2]
-
-/* The tables below contains the possible values for the auto fan
- * control bitfields. the index in the table is the register value.
- * MSb is the auto fan control enable bit, so the four first entries
- * in the table disables auto fan control when both bitfields are zero.
- */
-static auto_chan_table_t auto_channel_select_table_adm1031 = {
- {0, 0}, {0, 0}, {0, 0}, {0, 0},
- {2 /*0b010 */ , 4 /*0b100 */ },
- {2 /*0b010 */ , 2 /*0b010 */ },
- {4 /*0b100 */ , 4 /*0b100 */ },
- {7 /*0b111 */ , 7 /*0b111 */ },
-};
-
-static auto_chan_table_t auto_channel_select_table_adm1030 = {
- {0, 0}, {0, 0}, {0, 0}, {0, 0},
- {2 /*0b10 */ , 0},
- {0xff /*invalid */ , 0},
- {0xff /*invalid */ , 0},
- {3 /*0b11 */ , 0},
-};
-
-/* That function checks if a bitfield is valid and returns the other bitfield
- * nearest match if no exact match where found.
- */
-static int
-get_fan_auto_nearest(struct adm1031_data *data,
- int chan, u8 val, u8 reg, u8 * new_reg)
-{
- int i;
- int first_match = -1, exact_match = -1;
- u8 other_reg_val =
- (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1];
-
- if (val == 0) {
- *new_reg = 0;
- return 0;
- }
-
- for (i = 0; i < 8; i++) {
- if ((val == (*data->chan_select_table)[i][chan]) &&
- ((*data->chan_select_table)[i][chan ? 0 : 1] ==
- other_reg_val)) {
- /* We found an exact match */
- exact_match = i;
- break;
- } else if (val == (*data->chan_select_table)[i][chan] &&
- first_match == -1) {
- /* Save the first match in case of an exact match has not been
- * found
- */
- first_match = i;
- }
- }
-
- if (exact_match >= 0) {
- *new_reg = exact_match;
- } else if (first_match >= 0) {
- *new_reg = first_match;
- } else {
- return -EINVAL;
- }
- return 0;
-}
-
-static ssize_t show_fan_auto_channel(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr));
-}
-
-static ssize_t
-set_fan_auto_channel(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
- u8 reg;
- int ret;
- u8 old_fan_mode;
-
- old_fan_mode = data->conf1;
-
- down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
-
- if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®))) {
- up(&data->update_lock);
- return ret;
- }
- if (((data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1)) & ADM1031_CONF1_AUTO_MODE) ^
- (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) {
- if (data->conf1 & ADM1031_CONF1_AUTO_MODE){
- /* Switch to Auto Fan Mode
- * Save PWM registers
- * Set PWM registers to 33% Both */
- data->old_pwm[0] = data->pwm[0];
- data->old_pwm[1] = data->pwm[1];
- adm1031_write_value(client, ADM1031_REG_PWM, 0x55);
- } else {
- /* Switch to Manual Mode */
- data->pwm[0] = data->old_pwm[0];
- data->pwm[1] = data->old_pwm[1];
- /* Restore PWM registers */
- adm1031_write_value(client, ADM1031_REG_PWM,
- data->pwm[0] | (data->pwm[1] << 4));
- }
- }
- data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1);
- adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1);
- up(&data->update_lock);
- return count;
-}
-
-#define fan_auto_channel_offset(offset) \
-static ssize_t show_fan_auto_channel_##offset (struct device *dev, char *buf) \
-{ \
- return show_fan_auto_channel(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t set_fan_auto_channel_##offset (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_fan_auto_channel(dev, buf, count, 0x##offset - 1); \
-} \
-static DEVICE_ATTR(auto_fan##offset##_channel, S_IRUGO | S_IWUSR, \
- show_fan_auto_channel_##offset, \
- set_fan_auto_channel_##offset)
-
-fan_auto_channel_offset(1);
-fan_auto_channel_offset(2);
-
-/* Auto Temps */
-static ssize_t show_auto_temp_off(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n",
- AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr]));
-}
-static ssize_t show_auto_temp_min(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n",
- AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr]));
-}
-static ssize_t
-set_auto_temp_min(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
-
- down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
- data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]);
- adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
- data->auto_temp[nr]);
- up(&data->update_lock);
- return count;
-}
-static ssize_t show_auto_temp_max(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n",
- AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr]));
-}
-static ssize_t
-set_auto_temp_max(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
-
- down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
- data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]);
- adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
- data->temp_max[nr]);
- up(&data->update_lock);
- return count;
-}
-
-#define auto_temp_reg(offset) \
-static ssize_t show_auto_temp_##offset##_off (struct device *dev, char *buf) \
-{ \
- return show_auto_temp_off(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t show_auto_temp_##offset##_min (struct device *dev, char *buf) \
-{ \
- return show_auto_temp_min(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t show_auto_temp_##offset##_max (struct device *dev, char *buf) \
-{ \
- return show_auto_temp_max(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t set_auto_temp_##offset##_min (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_auto_temp_min(dev, buf, count, 0x##offset - 1); \
-} \
-static ssize_t set_auto_temp_##offset##_max (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_auto_temp_max(dev, buf, count, 0x##offset - 1); \
-} \
-static DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO, \
- show_auto_temp_##offset##_off, NULL); \
-static DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR, \
- show_auto_temp_##offset##_min, set_auto_temp_##offset##_min);\
-static DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR, \
- show_auto_temp_##offset##_max, set_auto_temp_##offset##_max)
-
-auto_temp_reg(1);
-auto_temp_reg(2);
-auto_temp_reg(3);
-
-/* pwm */
-static ssize_t show_pwm(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
-}
-static ssize_t
-set_pwm(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
- int reg;
- down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
- if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) &&
- (((val>>4) & 0xf) != 5)) {
- /* In automatic mode, the only PWM accepted is 33% */
- up(&data->update_lock);
- return -EINVAL;
- }
- data->pwm[nr] = PWM_TO_REG(val);
- reg = adm1031_read_value(client, ADM1031_REG_PWM);
- adm1031_write_value(client, ADM1031_REG_PWM,
- nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf)
- : (data->pwm[nr] & 0xf) | (reg & 0xf0));
- up(&data->update_lock);
- return count;
-}
-
-#define pwm_reg(offset) \
-static ssize_t show_pwm_##offset (struct device *dev, char *buf) \
-{ \
- return show_pwm(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t set_pwm_##offset (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_pwm(dev, buf, count, 0x##offset - 1); \
-} \
-static DEVICE_ATTR(fan##offset##_pwm, S_IRUGO | S_IWUSR, \
- show_pwm_##offset, set_pwm_##offset)
-
-pwm_reg(1);
-pwm_reg(2);
-
-/* Fans */
-
-/*
- * That function checks the cases where the fan reading is not
- * relevent. It is used to provide 0 as fan reading when the fan is
- * not supposed to run
- */
-static int trust_fan_readings(struct adm1031_data *data, int chan)
-{
- int res = 0;
-
- if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
- switch (data->conf1 & 0x60) {
- case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */
- res = data->temp[chan+1] >=
- AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
- break;
- case 0x20: /* remote temp1 controls both fans */
- res =
- data->temp[1] >=
- AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]);
- break;
- case 0x40: /* remote temp2 controls both fans */
- res =
- data->temp[2] >=
- AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]);
- break;
- case 0x60: /* max controls both fans */
- res =
- data->temp[0] >=
- AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0])
- || data->temp[1] >=
- AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1])
- || (data->chip_type == adm1031
- && data->temp[2] >=
- AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]));
- break;
- }
- } else {
- res = data->pwm[chan] > 0;
- }
- return res;
-}
-
-
-static ssize_t show_fan(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- int value;
-
- value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr],
- FAN_DIV_FROM_REG(data->fan_div[nr])) : 0;
- return sprintf(buf, "%d\n", value);
-}
-
-static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr]));
-}
-static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n",
- FAN_FROM_REG(data->fan_min[nr],
- FAN_DIV_FROM_REG(data->fan_div[nr])));
-}
-static ssize_t
-set_fan_min(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
-
- down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
- if (val) {
- data->fan_min[nr] =
- FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr]));
- } else {
- data->fan_min[nr] = 0xff;
- }
- adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]);
- up(&data->update_lock);
- return count;
-}
-static ssize_t
-set_fan_div(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
- u8 tmp;
- int old_div = FAN_DIV_FROM_REG(data->fan_div[nr]);
- int new_min;
-
- val = simple_strtol(buf, NULL, 10);
- tmp = val == 8 ? 0xc0 :
- val == 4 ? 0x80 :
- val == 2 ? 0x40 :
- val == 1 ? 0x00 :
- 0xff;
- if (tmp == 0xff)
- return -EINVAL;
- down(&data->update_lock);
- data->fan_div[nr] = (tmp & 0xC0) | (0x3f & data->fan_div[nr]);
- new_min = data->fan_min[nr] * old_div /
- FAN_DIV_FROM_REG(data->fan_div[nr]);
- data->fan_min[nr] = new_min > 0xff ? 0xff : new_min;
- data->fan[nr] = data->fan[nr] * old_div /
- FAN_DIV_FROM_REG(data->fan_div[nr]);
-
- adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr),
- data->fan_div[nr]);
- adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr),
- data->fan_min[nr]);
- up(&data->update_lock);
- return count;
-}
-
-#define fan_offset(offset) \
-static ssize_t show_fan_##offset (struct device *dev, char *buf) \
-{ \
- return show_fan(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
-{ \
- return show_fan_min(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
-{ \
- return show_fan_div(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t set_fan_##offset##_min (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_fan_min(dev, buf, count, 0x##offset - 1); \
-} \
-static ssize_t set_fan_##offset##_div (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_fan_div(dev, buf, count, 0x##offset - 1); \
-} \
-static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, \
- NULL); \
-static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
- show_fan_##offset##_min, set_fan_##offset##_min); \
-static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
- show_fan_##offset##_div, set_fan_##offset##_div); \
-static DEVICE_ATTR(auto_fan##offset##_min_pwm, S_IRUGO | S_IWUSR, \
- show_pwm_##offset, set_pwm_##offset)
-
-fan_offset(1);
-fan_offset(2);
-
-
-/* Temps */
-static ssize_t show_temp(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- int ext;
- ext = nr == 0 ?
- ((data->ext_temp[nr] >> 6) & 0x3) * 2 :
- (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7));
- return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext));
-}
-static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
-}
-static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
-}
-static ssize_t show_temp_crit(struct device *dev, char *buf, int nr)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
-}
-static ssize_t
-set_temp_min(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
-
- val = simple_strtol(buf, NULL, 10);
- val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
- down(&data->update_lock);
- data->temp_min[nr] = TEMP_TO_REG(val);
- adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr),
- data->temp_min[nr]);
- up(&data->update_lock);
- return count;
-}
-static ssize_t
-set_temp_max(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
-
- val = simple_strtol(buf, NULL, 10);
- val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
- down(&data->update_lock);
- data->temp_max[nr] = TEMP_TO_REG(val);
- adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr),
- data->temp_max[nr]);
- up(&data->update_lock);
- return count;
-}
-static ssize_t
-set_temp_crit(struct device *dev, const char *buf, size_t count, int nr)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int val;
-
- val = simple_strtol(buf, NULL, 10);
- val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
- down(&data->update_lock);
- data->temp_crit[nr] = TEMP_TO_REG(val);
- adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr),
- data->temp_crit[nr]);
- up(&data->update_lock);
- return count;
-}
-
-#define temp_reg(offset) \
-static ssize_t show_temp_##offset (struct device *dev, char *buf) \
-{ \
- return show_temp(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t show_temp_##offset##_min (struct device *dev, char *buf) \
-{ \
- return show_temp_min(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t show_temp_##offset##_max (struct device *dev, char *buf) \
-{ \
- return show_temp_max(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t show_temp_##offset##_crit (struct device *dev, char *buf) \
-{ \
- return show_temp_crit(dev, buf, 0x##offset - 1); \
-} \
-static ssize_t set_temp_##offset##_min (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_temp_min(dev, buf, count, 0x##offset - 1); \
-} \
-static ssize_t set_temp_##offset##_max (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_temp_max(dev, buf, count, 0x##offset - 1); \
-} \
-static ssize_t set_temp_##offset##_crit (struct device *dev, \
- const char *buf, size_t count) \
-{ \
- return set_temp_crit(dev, buf, count, 0x##offset - 1); \
-} \
-static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \
- NULL); \
-static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
- show_temp_##offset##_min, set_temp_##offset##_min); \
-static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
- show_temp_##offset##_max, set_temp_##offset##_max); \
-static DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
- show_temp_##offset##_crit, set_temp_##offset##_crit)
-
-temp_reg(1);
-temp_reg(2);
-temp_reg(3);
-
-/* Alarms */
-static ssize_t show_alarms(struct device *dev, char *buf)
-{
- struct adm1031_data *data = adm1031_update_device(dev);
- return sprintf(buf, "%d\n", data->alarm);
-}
-
-static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
-
-
-static int adm1031_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_detect(adapter, &addr_data, adm1031_detect);
-}
-
-/* This function is called by i2c_detect */
-static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind)
-{
- struct i2c_client *new_client;
- struct adm1031_data *data;
- int err = 0;
- const char *name = "";
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- goto exit;
-
- if (!(data = kmalloc(sizeof(struct adm1031_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
- memset(data, 0, sizeof(struct adm1031_data));
-
- new_client = &data->client;
- i2c_set_clientdata(new_client, data);
- new_client->addr = address;
- new_client->adapter = adapter;
- new_client->driver = &adm1031_driver;
- new_client->flags = 0;
-
- if (kind < 0) {
- int id, co;
- id = i2c_smbus_read_byte_data(new_client, 0x3d);
- co = i2c_smbus_read_byte_data(new_client, 0x3e);
-
- if (!((id == 0x31 || id == 0x30) && co == 0x41))
- goto exit_free;
- kind = (id == 0x30) ? adm1030 : adm1031;
- }
-
- if (kind <= 0)
- kind = adm1031;
-
- /* Given the detected chip type, set the chip name and the
- * auto fan control helper table. */
- if (kind == adm1030) {
- name = "adm1030";
- data->chan_select_table = &auto_channel_select_table_adm1030;
- } else if (kind == adm1031) {
- name = "adm1031";
- data->chan_select_table = &auto_channel_select_table_adm1031;
- }
- data->chip_type = kind;
-
- strlcpy(new_client->name, name, I2C_NAME_SIZE);
-
- new_client->id = adm1031_id++;
- data->valid = 0;
- init_MUTEX(&data->update_lock);
-
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(new_client)))
- goto exit_free;
-
- /* Initialize the ADM1031 chip */
- adm1031_init_client(new_client);
-
- /* Register sysfs hooks */
- device_create_file(&new_client->dev, &dev_attr_fan1_input);
- device_create_file(&new_client->dev, &dev_attr_fan1_div);
- device_create_file(&new_client->dev, &dev_attr_fan1_min);
- device_create_file(&new_client->dev, &dev_attr_fan1_pwm);
- device_create_file(&new_client->dev, &dev_attr_auto_fan1_channel);
- device_create_file(&new_client->dev, &dev_attr_temp1_input);
- device_create_file(&new_client->dev, &dev_attr_temp1_min);
- device_create_file(&new_client->dev, &dev_attr_temp1_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_crit);
- device_create_file(&new_client->dev, &dev_attr_temp2_input);
- device_create_file(&new_client->dev, &dev_attr_temp2_min);
- device_create_file(&new_client->dev, &dev_attr_temp2_max);
- device_create_file(&new_client->dev, &dev_attr_temp2_crit);
-
- device_create_file(&new_client->dev, &dev_attr_auto_temp1_off);
- device_create_file(&new_client->dev, &dev_attr_auto_temp1_min);
- device_create_file(&new_client->dev, &dev_attr_auto_temp1_max);
-
- device_create_file(&new_client->dev, &dev_attr_auto_temp2_off);
- device_create_file(&new_client->dev, &dev_attr_auto_temp2_min);
- device_create_file(&new_client->dev, &dev_attr_auto_temp2_max);
-
- device_create_file(&new_client->dev, &dev_attr_auto_fan1_min_pwm);
-
- device_create_file(&new_client->dev, &dev_attr_alarms);
-
- if (kind == adm1031) {
- device_create_file(&new_client->dev, &dev_attr_fan2_input);
- device_create_file(&new_client->dev, &dev_attr_fan2_div);
- device_create_file(&new_client->dev, &dev_attr_fan2_min);
- device_create_file(&new_client->dev, &dev_attr_fan2_pwm);
- device_create_file(&new_client->dev,
- &dev_attr_auto_fan2_channel);
- device_create_file(&new_client->dev, &dev_attr_temp3_input);
- device_create_file(&new_client->dev, &dev_attr_temp3_min);
- device_create_file(&new_client->dev, &dev_attr_temp3_max);
- device_create_file(&new_client->dev, &dev_attr_temp3_crit);
- device_create_file(&new_client->dev, &dev_attr_auto_temp3_off);
- device_create_file(&new_client->dev, &dev_attr_auto_temp3_min);
- device_create_file(&new_client->dev, &dev_attr_auto_temp3_max);
- device_create_file(&new_client->dev, &dev_attr_auto_fan2_min_pwm);
- }
-
- return 0;
-
-exit_free:
- kfree(new_client);
-exit:
- return err;
-}
-
-static int adm1031_detach_client(struct i2c_client *client)
-{
- int ret;
- if ((ret = i2c_detach_client(client)) != 0) {
- return ret;
- }
- kfree(client);
- return 0;
-}
-
-static void adm1031_init_client(struct i2c_client *client)
-{
- unsigned int read_val;
- unsigned int mask;
- struct adm1031_data *data = i2c_get_clientdata(client);
-
- mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE);
- if (data->chip_type == adm1031) {
- mask |= (ADM1031_CONF2_PWM2_ENABLE |
- ADM1031_CONF2_TACH2_ENABLE);
- }
- /* Initialize the ADM1031 chip (enables fan speed reading ) */
- read_val = adm1031_read_value(client, ADM1031_REG_CONF2);
- if ((read_val | mask) != read_val) {
- adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
- }
-
- read_val = adm1031_read_value(client, ADM1031_REG_CONF1);
- if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) {
- adm1031_write_value(client, ADM1031_REG_CONF1, read_val |
- ADM1031_CONF1_MONITOR_ENABLE);
- }
-
-}
-
-static struct adm1031_data *adm1031_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- int chan;
-
- down(&data->update_lock);
-
- if ((jiffies - data->last_updated > HZ + HZ / 2) ||
- (jiffies < data->last_updated) || !data->valid) {
-
- dev_dbg(&client->dev, "Starting adm1031 update\n");
- for (chan = 0;
- chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) {
- u8 oldh, newh;
-
- oldh =
- adm1031_read_value(client, ADM1031_REG_TEMP(chan));
- data->ext_temp[chan] =
- adm1031_read_value(client, ADM1031_REG_EXT_TEMP);
- newh =
- adm1031_read_value(client, ADM1031_REG_TEMP(chan));
- if (newh != oldh) {
- data->ext_temp[chan] =
- adm1031_read_value(client,
- ADM1031_REG_EXT_TEMP);
-#ifdef DEBUG
- oldh =
- adm1031_read_value(client,
- ADM1031_REG_TEMP(chan));
-
- /* oldh is actually newer */
- if (newh != oldh)
- dev_warn(&client->dev,
- "Remote temperature may be "
- "wrong.\n");
-#endif
- }
- data->temp[chan] = newh;
-
- data->temp_min[chan] =
- adm1031_read_value(client,
- ADM1031_REG_TEMP_MIN(chan));
- data->temp_max[chan] =
- adm1031_read_value(client,
- ADM1031_REG_TEMP_MAX(chan));
- data->temp_crit[chan] =
- adm1031_read_value(client,
- ADM1031_REG_TEMP_CRIT(chan));
- data->auto_temp[chan] =
- adm1031_read_value(client,
- ADM1031_REG_AUTO_TEMP(chan));
-
- }
-
- data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1);
- data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
-
- data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
- | (adm1031_read_value(client, ADM1031_REG_STATUS(1))
- << 8);
- if (data->chip_type == adm1030) {
- data->alarm &= 0xc0ff;
- }
-
- for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) {
- data->fan_div[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan));
- data->fan_min[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan));
- data->fan[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan));
- data->pwm[chan] =
- 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >>
- (4*chan));
- }
- data->last_updated = jiffies;
- data->valid = 1;
- }
-
- up(&data->update_lock);
-
- return data;
-}
-
-static int __init sensors_adm1031_init(void)
-{
- return i2c_add_driver(&adm1031_driver);
-}
-
-static void __exit sensors_adm1031_exit(void)
-{
- i2c_del_driver(&adm1031_driver);
-}
-
-MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>");
-MODULE_DESCRIPTION("ADM1031/ADM1030 driver");
-MODULE_LICENSE("GPL");
-
-module_init(sensors_adm1031_init);
-module_exit(sensors_adm1031_exit);
+++ /dev/null
-/*
- lm77.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
-
- Copyright (c) 2004 Andras BALI <drewie@freemail.hu>
-
- Heavily based on lm75.c by Frodo Looijaard <frodol@dds.nl>. The LM77
- is a temperature sensor and thermal window comparator with 0.5 deg
- resolution made by National Semiconductor. Complete datasheet can be
- obtained at their site:
- http://www.national.com/pf/LM/LM77.html
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/i2c-sensor.h>
-
-
-/* Addresses to scan */
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
-static unsigned short normal_i2c_range[] = { 0x48, 0x4b, I2C_CLIENT_END };
-static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
-static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
-
-/* Insmod parameters */
-SENSORS_INSMOD_1(lm77);
-
-/* The LM77 registers */
-#define LM77_REG_TEMP 0x00
-#define LM77_REG_CONF 0x01
-#define LM77_REG_TEMP_HYST 0x02
-#define LM77_REG_TEMP_CRIT 0x03
-#define LM77_REG_TEMP_MIN 0x04
-#define LM77_REG_TEMP_MAX 0x05
-
-/* Each client has this additional data */
-struct lm77_data {
- struct i2c_client client;
- struct semaphore update_lock;
- char valid;
- unsigned long last_updated; /* In jiffies */
- int temp_input; /* Temperatures */
- int temp_crit;
- int temp_min;
- int temp_max;
- int temp_hyst;
- u8 alarms;
-};
-
-static int lm77_attach_adapter(struct i2c_adapter *adapter);
-static int lm77_detect(struct i2c_adapter *adapter, int address, int kind);
-static void lm77_init_client(struct i2c_client *client);
-static int lm77_detach_client(struct i2c_client *client);
-static u16 lm77_read_value(struct i2c_client *client, u8 reg);
-static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value);
-
-static struct lm77_data *lm77_update_device(struct device *dev);
-
-
-/* This is the driver that will be inserted */
-static struct i2c_driver lm77_driver = {
- .owner = THIS_MODULE,
- .name = "lm77",
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = lm77_attach_adapter,
- .detach_client = lm77_detach_client,
-};
-
-static int lm77_id = 0;
-
-/* straight from the datasheet */
-#define LM77_TEMP_MIN (-55000)
-#define LM77_TEMP_MAX 125000
-
-/* In the temperature registers, the low 3 bits are not part of the
- temperature values; they are the status bits. */
-static inline u16 LM77_TEMP_TO_REG(int temp)
-{
- int ntemp = SENSORS_LIMIT(temp, LM77_TEMP_MIN, LM77_TEMP_MAX);
- return (u16)((ntemp / 500) * 8);
-}
-
-static inline int LM77_TEMP_FROM_REG(u16 reg)
-{
- return ((int)reg / 8) * 500;
-}
-
-/* sysfs stuff */
-
-/* read routines for temperature limits */
-#define show(value) \
-static ssize_t show_##value(struct device *dev, char *buf) \
-{ \
- struct lm77_data *data = lm77_update_device(dev); \
- return sprintf(buf, "%d\n", data->value); \
-}
-
-show(temp_input);
-show(temp_crit);
-show(temp_min);
-show(temp_max);
-show(alarms);
-
-/* read routines for hysteresis values */
-static ssize_t show_temp_crit_hyst(struct device *dev, char *buf)
-{
- struct lm77_data *data = lm77_update_device(dev);
- return sprintf(buf, "%d\n", data->temp_crit - data->temp_hyst);
-}
-static ssize_t show_temp_min_hyst(struct device *dev, char *buf)
-{
- struct lm77_data *data = lm77_update_device(dev);
- return sprintf(buf, "%d\n", data->temp_min + data->temp_hyst);
-}
-static ssize_t show_temp_max_hyst(struct device *dev, char *buf)
-{
- struct lm77_data *data = lm77_update_device(dev);
- return sprintf(buf, "%d\n", data->temp_max - data->temp_hyst);
-}
-
-/* write routines */
-#define set(value, reg) \
-static ssize_t set_##value(struct device *dev, const char *buf, size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct lm77_data *data = i2c_get_clientdata(client); \
- data->value = simple_strtoul(buf, NULL, 10); \
- lm77_write_value(client, reg, LM77_TEMP_TO_REG(data->value)); \
- return count; \
-}
-
-set(temp_min, LM77_REG_TEMP_MIN);
-set(temp_max, LM77_REG_TEMP_MAX);
-
-/* hysteresis is stored as a relative value on the chip, so it has to be
- converted first */
-static ssize_t set_temp_crit_hyst(struct device *dev, const char *buf, size_t count)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm77_data *data = i2c_get_clientdata(client);
- data->temp_hyst = data->temp_crit - simple_strtoul(buf, NULL, 10);
- lm77_write_value(client, LM77_REG_TEMP_HYST,
- LM77_TEMP_TO_REG(data->temp_hyst));
- return count;
-}
-
-/* preserve hysteresis when setting T_crit */
-static ssize_t set_temp_crit(struct device *dev, const char *buf, size_t count)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm77_data *data = i2c_get_clientdata(client);
- int oldcrithyst = data->temp_crit - data->temp_hyst;
- data->temp_crit = simple_strtoul(buf, NULL, 10);
- data->temp_hyst = data->temp_crit - oldcrithyst;
- lm77_write_value(client, LM77_REG_TEMP_CRIT,
- LM77_TEMP_TO_REG(data->temp_crit));
- lm77_write_value(client, LM77_REG_TEMP_HYST,
- LM77_TEMP_TO_REG(data->temp_hyst));
- return count;
-}
-
-static DEVICE_ATTR(temp1_input, S_IRUGO,
- show_temp_input, NULL);
-static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO,
- show_temp_crit, set_temp_crit);
-static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
- show_temp_min, set_temp_min);
-static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
- show_temp_max, set_temp_max);
-
-static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO,
- show_temp_crit_hyst, set_temp_crit_hyst);
-static DEVICE_ATTR(temp1_min_hyst, S_IRUGO,
- show_temp_min_hyst, NULL);
-static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
- show_temp_max_hyst, NULL);
-
-static DEVICE_ATTR(alarms, S_IRUGO,
- show_alarms, NULL);
-
-static int lm77_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_detect(adapter, &addr_data, lm77_detect);
-}
-
-/* This function is called by i2c_detect */
-static int lm77_detect(struct i2c_adapter *adapter, int address, int kind)
-{
- struct i2c_client *new_client;
- struct lm77_data *data;
- int err = 0;
- const char *name = "";
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
- I2C_FUNC_SMBUS_WORD_DATA))
- goto exit;
-
- /* OK. For now, we presume we have a valid client. We now create the
- client structure, even though we cannot fill it completely yet.
- But it allows us to access lm77_{read,write}_value. */
- if (!(data = kmalloc(sizeof(struct lm77_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
- memset(data, 0, sizeof(struct lm77_data));
-
- new_client = &data->client;
- i2c_set_clientdata(new_client, data);
- new_client->addr = address;
- new_client->adapter = adapter;
- new_client->driver = &lm77_driver;
- new_client->flags = 0;
-
- /* Here comes the remaining detection. Since the LM77 has no
- register dedicated to identification, we have to rely on the
- following tricks:
-
- 1. the high 4 bits represent the sign and thus they should
- always be the same
- 2. the high 3 bits are unused in the configuration register
- 3. addresses 0x06 and 0x07 return the last read value
- 4. registers cycling over 8-address boundaries
-
- Word-sized registers are high-byte first. */
- if (kind < 0) {
- int i, cur, conf, hyst, crit, min, max;
-
- /* addresses cycling */
- cur = i2c_smbus_read_word_data(new_client, 0);
- conf = i2c_smbus_read_byte_data(new_client, 1);
- hyst = i2c_smbus_read_word_data(new_client, 2);
- crit = i2c_smbus_read_word_data(new_client, 3);
- min = i2c_smbus_read_word_data(new_client, 4);
- max = i2c_smbus_read_word_data(new_client, 5);
- for (i = 8; i <= 0xff; i += 8)
- if (i2c_smbus_read_byte_data(new_client, i + 1) != conf
- || i2c_smbus_read_word_data(new_client, i + 2) != hyst
- || i2c_smbus_read_word_data(new_client, i + 3) != crit
- || i2c_smbus_read_word_data(new_client, i + 4) != min
- || i2c_smbus_read_word_data(new_client, i + 5) != max)
- goto exit_free;
-
- /* sign bits */
- if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0)
- || ((hyst & 0x00f0) != 0xf0 && (hyst & 0x00f0) != 0x0)
- || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0)
- || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0)
- || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0))
- goto exit_free;
-
- /* unused bits */
- if (conf & 0xe0)
- goto exit_free;
-
- /* 0x06 and 0x07 return the last read value */
- cur = i2c_smbus_read_word_data(new_client, 0);
- if (i2c_smbus_read_word_data(new_client, 6) != cur
- || i2c_smbus_read_word_data(new_client, 7) != cur)
- goto exit_free;
- hyst = i2c_smbus_read_word_data(new_client, 2);
- if (i2c_smbus_read_word_data(new_client, 6) != hyst
- || i2c_smbus_read_word_data(new_client, 7) != hyst)
- goto exit_free;
- min = i2c_smbus_read_word_data(new_client, 4);
- if (i2c_smbus_read_word_data(new_client, 6) != min
- || i2c_smbus_read_word_data(new_client, 7) != min)
- goto exit_free;
-
- }
-
- /* Determine the chip type - only one kind supported! */
- if (kind <= 0)
- kind = lm77;
-
- if (kind == lm77) {
- name = "lm77";
- }
-
- /* Fill in the remaining client fields and put it into the global list */
- strlcpy(new_client->name, name, I2C_NAME_SIZE);
-
- new_client->id = lm77_id++;
- data->valid = 0;
- init_MUTEX(&data->update_lock);
-
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(new_client)))
- goto exit_free;
-
- /* Initialize the LM77 chip */
- lm77_init_client(new_client);
-
- /* Register sysfs hooks */
- device_create_file(&new_client->dev, &dev_attr_temp1_input);
- device_create_file(&new_client->dev, &dev_attr_temp1_crit);
- device_create_file(&new_client->dev, &dev_attr_temp1_min);
- device_create_file(&new_client->dev, &dev_attr_temp1_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_crit_hyst);
- device_create_file(&new_client->dev, &dev_attr_temp1_min_hyst);
- device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
- device_create_file(&new_client->dev, &dev_attr_alarms);
- return 0;
-
-exit_free:
- kfree(data);
-exit:
- return err;
-}
-
-static int lm77_detach_client(struct i2c_client *client)
-{
- i2c_detach_client(client);
- kfree(i2c_get_clientdata(client));
- return 0;
-}
-
-/* All registers are word-sized, except for the configuration register.
- The LM77 uses the high-byte first convention. */
-static u16 lm77_read_value(struct i2c_client *client, u8 reg)
-{
- if (reg == LM77_REG_CONF)
- return i2c_smbus_read_byte_data(client, reg);
- else
- return swab16(i2c_smbus_read_word_data(client, reg));
-}
-
-static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value)
-{
- if (reg == LM77_REG_CONF)
- return i2c_smbus_write_byte_data(client, reg, value);
- else
- return i2c_smbus_write_word_data(client, reg, swab16(value));
-}
-
-static void lm77_init_client(struct i2c_client *client)
-{
- /* Initialize the LM77 chip - turn off shutdown mode */
- int conf = lm77_read_value(client, LM77_REG_CONF);
- if (conf & 1)
- lm77_write_value(client, LM77_REG_CONF, conf & 0xfe);
-}
-
-static struct lm77_data *lm77_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm77_data *data = i2c_get_clientdata(client);
-
- down(&data->update_lock);
-
- if ((jiffies - data->last_updated > HZ + HZ / 2) ||
- (jiffies < data->last_updated) || !data->valid) {
- dev_dbg(&client->dev, "Starting lm77 update\n");
- data->temp_input =
- LM77_TEMP_FROM_REG(lm77_read_value(client,
- LM77_REG_TEMP));
- data->temp_hyst =
- LM77_TEMP_FROM_REG(lm77_read_value(client,
- LM77_REG_TEMP_HYST));
- data->temp_crit =
- LM77_TEMP_FROM_REG(lm77_read_value(client,
- LM77_REG_TEMP_CRIT));
- data->temp_min =
- LM77_TEMP_FROM_REG(lm77_read_value(client,
- LM77_REG_TEMP_MIN));
- data->temp_max =
- LM77_TEMP_FROM_REG(lm77_read_value(client,
- LM77_REG_TEMP_MAX));
- data->alarms =
- lm77_read_value(client, LM77_REG_TEMP) & 0x0007;
- data->last_updated = jiffies;
- data->valid = 1;
- }
-
- up(&data->update_lock);
-
- return data;
-}
-
-static int __init sensors_lm77_init(void)
-{
- return i2c_add_driver(&lm77_driver);
-}
-
-static void __exit sensors_lm77_exit(void)
-{
- i2c_del_driver(&lm77_driver);
-}
-
-MODULE_AUTHOR("Andras BALI <drewie@freemail.hu>");
-MODULE_DESCRIPTION("LM77 driver");
-MODULE_LICENSE("GPL");
-
-module_init(sensors_lm77_init);
-module_exit(sensors_lm77_exit);
+++ /dev/null
-/*
- * Copyright (C) 2001, 2002 Jens Axboe <axboe@suse.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/*
- * Support for the DMA queued protocol, which enables ATA disk drives to
- * use tagged command queueing.
- */
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/ide.h>
-
-#include <asm/io.h>
-#include <asm/delay.h>
-
-/*
- * warning: it will be _very_ verbose if defined
- */
-#undef IDE_TCQ_DEBUG
-
-#ifdef IDE_TCQ_DEBUG
-#define TCQ_PRINTK printk
-#else
-#define TCQ_PRINTK(x...)
-#endif
-
-/*
- * use nIEN or not
- */
-#undef IDE_TCQ_NIEN
-
-/*
- * we are leaving the SERVICE interrupt alone, IBM drives have it
- * on per default and it can't be turned off. Doesn't matter, this
- * is the sane config.
- */
-#undef IDE_TCQ_FIDDLE_SI
-
-/*
- * bad drive blacklist, for drives that raport tcq capability but don't
- * work reliably with the default config. initially from freebsd table.
- */
-struct ide_tcq_blacklist {
- char *model;
- char works;
- unsigned int max_sectors;
-};
-
-static struct ide_tcq_blacklist ide_tcq_blacklist[] = {
- {
- .model = "IBM-DTTA",
- .works = 1,
- .max_sectors = 128,
- },
- {
- .model = "IBM-DJNA",
- .works = 0,
- },
- {
- .model = "WDC AC",
- .works = 0,
- },
- {
- .model = NULL,
- },
-};
-
-ide_startstop_t ide_dmaq_intr(ide_drive_t *drive);
-ide_startstop_t ide_service(ide_drive_t *drive);
-
-static struct ide_tcq_blacklist *ide_find_drive_blacklist(ide_drive_t *drive)
-{
- struct ide_tcq_blacklist *itb;
- int i = 0;
-
- do {
- itb = &ide_tcq_blacklist[i];
-
- if (!itb->model)
- break;
-
- if (!strncmp(drive->id->model, itb->model, strlen(itb->model)))
- return itb;
-
- i++;
- } while (1);
-
- return NULL;
-}
-
-static inline void drive_ctl_nien(ide_drive_t *drive, int set)
-{
-#ifdef IDE_TCQ_NIEN
- if (IDE_CONTROL_REG) {
- int mask = set ? 0x02 : 0x00;
-
- hwif->OUTB(drive->ctl | mask, IDE_CONTROL_REG);
- }
-#endif
-}
-
-static ide_startstop_t ide_tcq_nop_handler(ide_drive_t *drive)
-{
- ide_task_t *args = HWGROUP(drive)->rq->special;
- ide_hwif_t *hwif = HWIF(drive);
- int auto_poll_check = 0;
- u8 stat, err;
-
- if (args->tfRegister[IDE_FEATURE_OFFSET] & 0x01)
- auto_poll_check = 1;
-
- local_irq_enable();
-
- stat = hwif->INB(IDE_STATUS_REG);
- err = hwif->INB(IDE_ERROR_REG);
- ide_end_drive_cmd(drive, stat, err);
-
- /*
- * do taskfile and check ABRT bit -- intelligent adapters will not
- * pass NOP with sub-code 0x01 to device, so the command will not
- * fail there
- */
- if (auto_poll_check) {
- if (!(args->tfRegister[IDE_FEATURE_OFFSET] & ABRT_ERR)) {
- HWIF(drive)->auto_poll = 1;
- printk("%s: NOP Auto-poll enabled\n",HWIF(drive)->name);
- }
- }
-
- kfree(args);
- return ide_stopped;
-}
-
-/*
- * if we encounter _any_ error doing I/O to one of the tags, we must
- * invalidate the pending queue. clear the software busy queue and requeue
- * on the request queue for restart. issue a WIN_NOP to clear hardware queue
- */
-static void ide_tcq_invalidate_queue(ide_drive_t *drive)
-{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
- request_queue_t *q = drive->queue;
- struct request *rq;
- unsigned long flags;
-
- printk("%s: invalidating tag queue (%d commands)\n", drive->name, ata_pending_commands(drive));
-
- /*
- * first kill timer and block queue
- */
- spin_lock_irqsave(&ide_lock, flags);
-
- del_timer(&hwgroup->timer);
-
- if (HWIF(drive)->dma)
- HWIF(drive)->ide_dma_end(drive);
-
- blk_queue_invalidate_tags(q);
-
- drive->using_tcq = 0;
- drive->queue_depth = 1;
- hwgroup->busy = 0;
- hwgroup->handler = NULL;
-
- spin_unlock_irqrestore(&ide_lock, flags);
-
- /*
- * now kill hardware queue with a NOP
- */
- rq = &hwgroup->wrq;
- ide_init_drive_cmd(rq);
- rq->buffer = hwgroup->cmd_buf;
- memset(rq->buffer, 0, sizeof(hwgroup->cmd_buf));
- rq->buffer[0] = WIN_NOP;
- ide_do_drive_cmd(drive, rq, ide_preempt);
-}
-
-void ide_tcq_intr_timeout(unsigned long data)
-{
- ide_drive_t *drive = (ide_drive_t *) data;
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
- ide_hwif_t *hwif = HWIF(drive);
- unsigned long flags;
-
- printk(KERN_ERR "ide_tcq_intr_timeout: timeout waiting for %s interrupt\n", hwgroup->rq ? "completion" : "service");
-
- spin_lock_irqsave(&ide_lock, flags);
-
- if (!hwgroup->busy)
- printk(KERN_ERR "ide_tcq_intr_timeout: hwgroup not busy\n");
- if (hwgroup->handler == NULL)
- printk(KERN_ERR "ide_tcq_intr_timeout: missing isr!\n");
-
- hwgroup->busy = 1;
- spin_unlock_irqrestore(&ide_lock, flags);
-
- /*
- * if pending commands, try service before giving up
- */
- if (ata_pending_commands(drive)) {
- u8 stat = hwif->INB(IDE_STATUS_REG);
-
- if ((stat & SRV_STAT) && (ide_service(drive) == ide_started))
- return;
- }
-
- if (drive)
- ide_tcq_invalidate_queue(drive);
-}
-
-void __ide_tcq_set_intr(ide_hwgroup_t *hwgroup, ide_handler_t *handler)
-{
- /*
- * always just bump the timer for now, the timeout handling will
- * have to be changed to be per-command
- */
- hwgroup->timer.function = ide_tcq_intr_timeout;
- hwgroup->timer.data = (unsigned long) hwgroup->drive;
- mod_timer(&hwgroup->timer, jiffies + 5 * HZ);
-
- hwgroup->handler = handler;
-}
-
-void ide_tcq_set_intr(ide_hwgroup_t *hwgroup, ide_handler_t *handler)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ide_lock, flags);
- __ide_tcq_set_intr(hwgroup, handler);
- spin_unlock_irqrestore(&ide_lock, flags);
-}
-
-/*
- * wait 400ns, then poll for busy_mask to clear from alt status
- */
-#define IDE_TCQ_WAIT (10000)
-int ide_tcq_wait_altstat(ide_drive_t *drive, byte *stat, byte busy_mask)
-{
- ide_hwif_t *hwif = HWIF(drive);
- int i = 0;
-
- udelay(1);
-
- do {
- *stat = hwif->INB(IDE_ALTSTATUS_REG);
-
- if (!(*stat & busy_mask))
- break;
-
- if (unlikely(i++ > IDE_TCQ_WAIT))
- return 1;
-
- udelay(10);
- } while (1);
-
- return 0;
-}
-
-/*
- * issue SERVICE command to drive -- drive must have been selected first,
- * and it must have reported a need for service (status has SRV_STAT set)
- *
- * Also, nIEN must be set as not to need protection against ide_dmaq_intr
- */
-ide_startstop_t ide_service(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = HWIF(drive);
- unsigned long flags;
- struct request *rq;
- byte feat, stat;
- int tag;
-
- TCQ_PRINTK("%s: started service\n", drive->name);
-
- /*
- * could be called with IDE_DMA in-progress from invalidate
- * handler, refuse to do anything
- */
- if (hwif->dma)
- return ide_stopped;
-
- /*
- * need to select the right drive first...
- */
- if (drive != HWGROUP(drive)->drive) {
- SELECT_DRIVE(drive);
- udelay(10);
- }
-
- drive_ctl_nien(drive, 1);
-
- /*
- * send SERVICE, wait 400ns, wait for BUSY_STAT to clear
- */
- hwif->OUTB(WIN_QUEUED_SERVICE, IDE_COMMAND_REG);
-
- if (ide_tcq_wait_altstat(drive, &stat, BUSY_STAT)) {
- printk(KERN_ERR "ide_service: BUSY clear took too long\n");
- ide_dump_status(drive, "ide_service", stat);
- ide_tcq_invalidate_queue(drive);
- return ide_stopped;
- }
-
- drive_ctl_nien(drive, 0);
-
- /*
- * FIXME, invalidate queue
- */
- if (stat & ERR_STAT) {
- ide_dump_status(drive, "ide_service", stat);
- ide_tcq_invalidate_queue(drive);
- return ide_stopped;
- }
-
- /*
- * should not happen, a buggy device could introduce loop
- */
- feat = hwif->INB(IDE_NSECTOR_REG);
- if (feat & REL) {
- HWGROUP(drive)->rq = NULL;
- printk(KERN_ERR "%s: release in service\n", drive->name);
- return ide_stopped;
- }
-
- tag = feat >> 3;
-
- TCQ_PRINTK("ide_service: stat %x, feat %x\n", stat, feat);
-
- spin_lock_irqsave(&ide_lock, flags);
-
- if ((rq = blk_queue_find_tag(drive->queue, tag))) {
- HWGROUP(drive)->rq = rq;
-
- /*
- * we'll start a dma read or write, device will trigger
- * interrupt to indicate end of transfer, release is not
- * allowed
- */
- TCQ_PRINTK("ide_service: starting command, stat=%x\n", stat);
- spin_unlock_irqrestore(&ide_lock, flags);
- return __ide_dma_queued_start(drive);
- }
-
- printk(KERN_ERR "ide_service: missing request for tag %d\n", tag);
- spin_unlock_irqrestore(&ide_lock, flags);
- return ide_stopped;
-}
-
-ide_startstop_t ide_check_service(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = HWIF(drive);
- byte stat;
-
- TCQ_PRINTK("%s: ide_check_service\n", drive->name);
-
- if (!ata_pending_commands(drive))
- return ide_stopped;
-
- stat = hwif->INB(IDE_STATUS_REG);
- if (stat & SRV_STAT)
- return ide_service(drive);
-
- /*
- * we have pending commands, wait for interrupt
- */
- TCQ_PRINTK("%s: wait for service interrupt\n", drive->name);
- ide_tcq_set_intr(HWGROUP(drive), ide_dmaq_intr);
- return ide_started;
-}
-
-ide_startstop_t ide_dmaq_complete(ide_drive_t *drive, struct request *rq, byte stat)
-{
- byte dma_stat;
-
- /*
- * transfer was in progress, stop DMA engine
- */
- dma_stat = HWIF(drive)->ide_dma_end(drive);
-
- /*
- * must be end of I/O, check status and complete as necessary
- */
- if (unlikely(!OK_STAT(stat, READY_STAT, drive->bad_wstat | DRQ_STAT))) {
- printk(KERN_ERR "ide_dmaq_intr: %s: error status %x\n",drive->name,stat);
- ide_dump_status(drive, "ide_dmaq_complete", stat);
- ide_tcq_invalidate_queue(drive);
- return ide_stopped;
- }
-
- if (dma_stat)
- printk(KERN_WARNING "%s: bad DMA status (dma_stat=%x)\n", drive->name, dma_stat);
-
- TCQ_PRINTK("ide_dmaq_complete: ending %p, tag %d\n", rq, rq->tag);
- ide_end_request(drive, 1, rq->nr_sectors);
-
- /*
- * we completed this command, check if we can service a new command
- */
- return ide_check_service(drive);
-}
-
-/*
- * intr handler for queued dma operations. this can be entered for two
- * reasons:
- *
- * 1) device has completed dma transfer
- * 2) service request to start a command
- *
- * if the drive has an active tag, we first complete that request before
- * processing any pending SERVICE.
- */
-ide_startstop_t ide_dmaq_intr(ide_drive_t *drive)
-{
- struct request *rq = HWGROUP(drive)->rq;
- ide_hwif_t *hwif = HWIF(drive);
- byte stat = hwif->INB(IDE_STATUS_REG);
-
- TCQ_PRINTK("ide_dmaq_intr: stat=%x\n", stat);
-
- /*
- * if a command completion interrupt is pending, do that first and
- * check service afterwards
- */
- if (rq) {
- TCQ_PRINTK("ide_dmaq_intr: completion\n");
- return ide_dmaq_complete(drive, rq, stat);
- }
-
- /*
- * service interrupt
- */
- if (stat & SRV_STAT) {
- TCQ_PRINTK("ide_dmaq_intr: SERV (stat=%x)\n", stat);
- return ide_service(drive);
- }
-
- printk("ide_dmaq_intr: stat=%x, not expected\n", stat);
- return ide_check_service(drive);
-}
-
-/*
- * check if the ata adapter this drive is attached to supports the
- * NOP auto-poll for multiple tcq enabled drives on one channel
- */
-static int ide_tcq_check_autopoll(ide_drive_t *drive)
-{
- ide_task_t *args;
- int i, drives;
-
- /*
- * only need to probe if both drives on a channel support tcq
- */
- for (i = 0, drives = 0; i < MAX_DRIVES; i++)
- if (HWIF(drive)->drives[i].present && drive->media == ide_disk)
- drives++;
-
- if (drives <= 1)
- return 0;
-
- /*
- * what a mess...
- */
- args = kmalloc(sizeof(*args), GFP_ATOMIC);
- if (!args)
- return 1;
-
- memset(args, 0, sizeof(*args));
-
- args->tfRegister[IDE_FEATURE_OFFSET] = 0x01;
- args->tfRegister[IDE_COMMAND_OFFSET] = WIN_NOP;
- args->command_type = IDE_DRIVE_TASK_NO_DATA;
- args->handler = ide_tcq_nop_handler;
- return ide_raw_taskfile(drive, args, NULL);
-}
-
-/*
- * configure the drive for tcq
- */
-static int ide_tcq_configure(ide_drive_t *drive)
-{
- int tcq_mask = 1 << 1 | 1 << 14;
- int tcq_bits = tcq_mask | 1 << 15;
- ide_task_t *args;
-
- /*
- * bit 14 and 1 must be set in word 83 of the device id to indicate
- * support for dma queued protocol, and bit 15 must be cleared
- */
- if ((drive->id->command_set_2 & tcq_bits) ^ tcq_mask) {
- printk(KERN_INFO "%s: TCQ not supported\n", drive->name);
- return -EIO;
- }
-
- args = kmalloc(sizeof(*args), GFP_ATOMIC);
- if (!args)
- return -ENOMEM;
-
- memset(args, 0, sizeof(ide_task_t));
- args->tfRegister[IDE_COMMAND_OFFSET] = WIN_SETFEATURES;
- args->tfRegister[IDE_FEATURE_OFFSET] = SETFEATURES_EN_WCACHE;
- args->command_type = IDE_DRIVE_TASK_NO_DATA;
- args->handler = &task_no_data_intr;
-
- if (ide_raw_taskfile(drive, args, NULL)) {
- printk(KERN_WARNING "%s: failed to enable write cache\n", drive->name);
- goto err;
- }
-
- /*
- * disable RELease interrupt, it's quicker to poll this after
- * having sent the command opcode
- */
- memset(args, 0, sizeof(ide_task_t));
- args->tfRegister[IDE_COMMAND_OFFSET] = WIN_SETFEATURES;
- args->tfRegister[IDE_FEATURE_OFFSET] = SETFEATURES_DIS_RI;
- args->command_type = IDE_DRIVE_TASK_NO_DATA;
- args->handler = &task_no_data_intr;
-
- if (ide_raw_taskfile(drive, args, NULL)) {
- printk(KERN_ERR "%s: disabling release interrupt fail\n", drive->name);
- goto err;
- }
-
-#ifdef IDE_TCQ_FIDDLE_SI
- /*
- * enable SERVICE interrupt
- */
- memset(args, 0, sizeof(ide_task_t));
- args->tfRegister[IDE_COMMAND_OFFSET] = WIN_SETFEATURES;
- args->tfRegister[IDE_FEATURE_OFFSET] = SETFEATURES_EN_SI;
- args->command_type = IDE_DRIVE_TASK_NO_DATA;
- args->handler = &task_no_data_intr;
-
- if (ide_raw_taskfile(drive, args, NULL)) {
- printk(KERN_ERR "%s: enabling service interrupt fail\n", drive->name);
- goto err;
- }
-#endif
-
- kfree(args);
- return 0;
-err:
- kfree(args);
- return -EIO;
-}
-
-/*
- * for now assume that command list is always as big as we need and don't
- * attempt to shrink it on tcq disable
- */
-static int ide_enable_queued(ide_drive_t *drive, int on)
-{
- struct ide_tcq_blacklist *itb;
- int depth = drive->using_tcq ? drive->queue_depth : 0;
-
- /*
- * disable or adjust queue depth
- */
- if (!on) {
- if (drive->using_tcq)
- printk(KERN_INFO "%s: TCQ disabled\n", drive->name);
-
- drive->using_tcq = 0;
- return 0;
- }
-
- if (ide_tcq_configure(drive)) {
- drive->using_tcq = 0;
- return 1;
- }
-
- /*
- * some drives need limited transfer size in tcq
- */
- itb = ide_find_drive_blacklist(drive);
- if (itb && itb->max_sectors) {
- if (itb->max_sectors > HWIF(drive)->rqsize)
- itb->max_sectors = HWIF(drive)->rqsize;
-
- blk_queue_max_sectors(drive->queue, itb->max_sectors);
- }
-
- /*
- * enable block tagging
- */
- if (!blk_queue_tagged(drive->queue))
- blk_queue_init_tags(drive->queue, IDE_MAX_TAG, NULL);
-
- /*
- * check auto-poll support
- */
- ide_tcq_check_autopoll(drive);
-
- if (depth != drive->queue_depth)
- printk(KERN_INFO "%s: tagged command queueing enabled, command queue depth %d\n", drive->name, drive->queue_depth);
-
- drive->using_tcq = 1;
- return 0;
-}
-
-int ide_tcq_wait_dataphase(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = HWIF(drive);
- byte stat;
- int i;
-
- do {
- stat = hwif->INB(IDE_STATUS_REG);
- if (!(stat & BUSY_STAT))
- break;
-
- udelay(10);
- } while (1);
-
- if (OK_STAT(stat, READY_STAT | DRQ_STAT, drive->bad_wstat))
- return 0;
-
- i = 0;
- udelay(1);
- do {
- stat = hwif->INB(IDE_STATUS_REG);
-
- if (OK_STAT(stat, READY_STAT | DRQ_STAT, drive->bad_wstat))
- break;
-
- ++i;
- if (unlikely(i >= IDE_TCQ_WAIT))
- return 1;
-
- udelay(10);
- } while (1);
-
- return 0;
-}
-
-static int ide_tcq_check_blacklist(ide_drive_t *drive)
-{
- struct ide_tcq_blacklist *itb = ide_find_drive_blacklist(drive);
-
- if (!itb)
- return 0;
-
- return !itb->works;
-}
-
-int __ide_dma_queued_on(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = HWIF(drive);
-
- if (drive->media != ide_disk)
- return 1;
- if (!drive->using_dma)
- return 1;
- if (hwif->chipset == ide_pdc4030)
- return 1;
- if (ide_tcq_check_blacklist(drive)) {
- printk(KERN_WARNING "%s: tcq forbidden by blacklist\n",
- drive->name);
- return 1;
- }
- if (hwif->drives[0].present && hwif->drives[1].present) {
- printk(KERN_WARNING "%s: only one drive on a channel supported"
- " for tcq\n", drive->name);
- return 1;
- }
- if (ata_pending_commands(drive)) {
- printk(KERN_WARNING "ide-tcq; can't toggle tcq feature on "
- "busy drive\n");
- return 1;
- }
-
- return ide_enable_queued(drive, 1);
-}
-
-int __ide_dma_queued_off(ide_drive_t *drive)
-{
- if (drive->media != ide_disk)
- return 1;
- if (ata_pending_commands(drive)) {
- printk("ide-tcq; can't toggle tcq feature on busy drive\n");
- return 1;
- }
-
- return ide_enable_queued(drive, 0);
-}
-
-static ide_startstop_t ide_dma_queued_rw(ide_drive_t *drive, u8 command)
-{
- ide_hwif_t *hwif = HWIF(drive);
- unsigned long flags;
- byte stat, feat;
-
- TCQ_PRINTK("%s: starting tag\n", drive->name);
-
- /*
- * set nIEN, tag start operation will enable again when
- * it is safe
- */
- drive_ctl_nien(drive, 1);
-
- TCQ_PRINTK("%s: sending cmd=%x\n", drive->name, command);
- hwif->OUTB(command, IDE_COMMAND_REG);
-
- if (ide_tcq_wait_altstat(drive, &stat, BUSY_STAT)) {
- printk("%s: alt stat timeout\n", drive->name);
- goto err;
- }
-
- drive_ctl_nien(drive, 0);
-
- if (stat & ERR_STAT)
- goto err;
-
- /*
- * bus not released, start dma
- */
- feat = hwif->INB(IDE_NSECTOR_REG);
- if (!(feat & REL)) {
- TCQ_PRINTK("IMMED in queued_start, feat=%x\n", feat);
- return __ide_dma_queued_start(drive);
- }
-
- /*
- * drive released the bus, clear active request and check for service
- */
- spin_lock_irqsave(&ide_lock, flags);
- HWGROUP(drive)->rq = NULL;
- __ide_tcq_set_intr(HWGROUP(drive), ide_dmaq_intr);
- spin_unlock_irqrestore(&ide_lock, flags);
-
- TCQ_PRINTK("REL in queued_start\n");
-
- stat = hwif->INB(IDE_STATUS_REG);
- if (stat & SRV_STAT)
- return ide_service(drive);
-
- return ide_released;
-err:
- ide_dump_status(drive, "rw_queued", stat);
- ide_tcq_invalidate_queue(drive);
- return ide_stopped;
-}
-
-ide_startstop_t __ide_dma_queued_read(ide_drive_t *drive)
-{
- u8 command = WIN_READDMA_QUEUED;
-
- if (drive->addressing == 1)
- command = WIN_READDMA_QUEUED_EXT;
-
- return ide_dma_queued_rw(drive, command);
-}
-
-ide_startstop_t __ide_dma_queued_write(ide_drive_t *drive)
-{
- u8 command = WIN_WRITEDMA_QUEUED;
-
- if (drive->addressing == 1)
- command = WIN_WRITEDMA_QUEUED_EXT;
-
- return ide_dma_queued_rw(drive, command);
-}
-
-ide_startstop_t __ide_dma_queued_start(ide_drive_t *drive)
-{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
- struct request *rq = hwgroup->rq;
- ide_hwif_t *hwif = HWIF(drive);
- unsigned int reading = 0;
-
- TCQ_PRINTK("ide_dma: setting up queued tag=%d\n", rq->tag);
-
- if (!hwgroup->busy)
- printk(KERN_ERR "queued_rw: hwgroup not busy\n");
-
- if (ide_tcq_wait_dataphase(drive)) {
- printk(KERN_WARNING "timeout waiting for data phase\n");
- return ide_stopped;
- }
-
- if (rq_data_dir(rq) == READ)
- reading = 1 << 3;
-
- if (ide_start_dma(hwif, drive, reading))
- return ide_stopped;
-
- ide_tcq_set_intr(hwgroup, ide_dmaq_intr);
-
- if (!hwif->ide_dma_begin(drive))
- return ide_started;
-
- return ide_stopped;
-}
+++ /dev/null
-#ifndef ALI15X3_H
-#define ALI15X3_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define DISPLAY_ALI_TIMINGS
-
-static unsigned int init_chipset_ali15x3(struct pci_dev *, const char *);
-static void init_hwif_common_ali15x3(ide_hwif_t *);
-static void init_hwif_ali15x3(ide_hwif_t *);
-static void init_dma_ali15x3(ide_hwif_t *, unsigned long);
-
-static ide_pci_device_t ali15x3_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_AL,
- .device = PCI_DEVICE_ID_AL_M5229,
- .name = "ALI15X3",
- .init_chipset = init_chipset_ali15x3,
- .init_iops = NULL,
- .init_hwif = init_hwif_ali15x3,
- .init_dma = init_dma_ali15x3,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* ALI15X3 */
+++ /dev/null
-#ifndef AMD74XX_H
-#define AMD74XX_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define DISPLAY_AMD_TIMINGS
-
-static unsigned int init_chipset_amd74xx(struct pci_dev *, const char *);
-static void init_hwif_amd74xx(ide_hwif_t *);
-
-static ide_pci_device_t amd74xx_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_AMD,
- .device = PCI_DEVICE_ID_AMD_COBRA_7401,
- .name = "AMD7401",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0
- },{ /* 1 */
- .vendor = PCI_VENDOR_ID_AMD,
- .device = PCI_DEVICE_ID_AMD_VIPER_7409,
- .name = "AMD7409",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0
- },{ /* 2 */
- .vendor = PCI_VENDOR_ID_AMD,
- .device = PCI_DEVICE_ID_AMD_VIPER_7411,
- .name = "AMD7411",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0
- },{ /* 3 */
- .vendor = PCI_VENDOR_ID_AMD,
- .device = PCI_DEVICE_ID_AMD_OPUS_7441,
- .name = "AMD7441",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0
- },{ /* 4 */
- .vendor = PCI_VENDOR_ID_AMD,
- .device = PCI_DEVICE_ID_AMD_8111_IDE,
- .name = "AMD8111",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .autodma = AUTODMA,
- .channels = 2,
- .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0
- },
- { /* 5 */
- .vendor = PCI_VENDOR_ID_NVIDIA,
- .device = PCI_DEVICE_ID_NVIDIA_NFORCE_IDE,
- .name = "NFORCE",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0,
- },
- { /* 6 */
- .vendor = PCI_VENDOR_ID_NVIDIA,
- .device = PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE,
- .name = "NFORCE2",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0,
- },
- { /* 7 */
- .vendor = PCI_VENDOR_ID_NVIDIA,
- .device = PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE,
- .name = "NFORCE2S",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}},
- .bootable = ON_BOARD,
- },
- { /* 8 */
- .vendor = PCI_VENDOR_ID_NVIDIA,
- .device = PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA,
- .name = "NFORCE2S-SATA",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}},
- .bootable = ON_BOARD,
- },
- { /* 9 */
- .vendor = PCI_VENDOR_ID_NVIDIA,
- .device = PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE,
- .name = "NFORCE3",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}},
- .bootable = ON_BOARD,
- },
- { /* 10 */
- .vendor = PCI_VENDOR_ID_NVIDIA,
- .device = PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE,
- .name = "NFORCE3S",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}},
- .bootable = ON_BOARD,
- },
- { /* 11 */
- .vendor = PCI_VENDOR_ID_NVIDIA,
- .device = PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA,
- .name = "NFORCE3S-SATA",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}},
- .bootable = ON_BOARD,
- },
- { /* 12 */
- .vendor = PCI_VENDOR_ID_NVIDIA,
- .device = PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2,
- .name = "NFORCE3S-SATA2",
- .init_chipset = init_chipset_amd74xx,
- .init_hwif = init_hwif_amd74xx,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}},
- .bootable = ON_BOARD,
- },
- {
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* AMD74XX_H */
+++ /dev/null
-#ifndef CMD640_H
-#define CMD640_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define IDE_IGNORE ((void *)-1)
-
-static ide_pci_device_t cmd640_chipsets[] __initdata = {
- {
- .vendor = PCI_VENDOR_ID_CMD,
- .device = PCI_DEVICE_ID_CMD_640,
- .name = "CMD640",
- .init_setup = NULL,
- .init_chipset = NULL,
- .init_iops = NULL,
- .init_hwif = IDE_IGNORE,
- .init_dma = NULL,
- .channels = 2,
- .autodma = NODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0
- },{
- .vendor = 0,
- .device = 0,
- .bootable = EOL,
- }
-}
-
-#endif /* CMD640_H */
+++ /dev/null
-#ifndef CS5520_H
-#define CS5520_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define DISPLAY_CS5520_TIMINGS
-
-static unsigned int init_chipset_cs5520(struct pci_dev *, const char *);
-static void init_hwif_cs5520(ide_hwif_t *);
-static void cs5520_init_setup_dma(struct pci_dev *dev, struct ide_pci_device_s *d, ide_hwif_t *hwif);
-
-static ide_pci_device_t cyrix_chipsets[] __devinitdata = {
- {
- .vendor = PCI_VENDOR_ID_CYRIX,
- .device = PCI_DEVICE_ID_CYRIX_5510,
- .name = "Cyrix 5510",
- .init_chipset = init_chipset_cs5520,
- .init_setup_dma = cs5520_init_setup_dma,
- .init_iops = NULL,
- .init_hwif = init_hwif_cs5520,
- .isa_ports = 1,
- .channels = 2,
- .autodma = AUTODMA,
- .bootable = ON_BOARD,
- .extra = 0,
- },
- {
- .vendor = PCI_VENDOR_ID_CYRIX,
- .device = PCI_DEVICE_ID_CYRIX_5520,
- .name = "Cyrix 5520",
- .init_chipset = init_chipset_cs5520,
- .init_setup_dma = cs5520_init_setup_dma,
- .init_iops = NULL,
- .init_hwif = init_hwif_cs5520,
- .isa_ports = 1,
- .channels = 2,
- .autodma = AUTODMA,
- .bootable = ON_BOARD,
- .extra = 0,
- }
-};
-
-
-#endif /* CS5520_H */
-
-
+++ /dev/null
-#ifndef CS5530_H
-#define CS5530_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define DISPLAY_CS5530_TIMINGS
-
-static unsigned int init_chipset_cs5530(struct pci_dev *, const char *);
-static void init_hwif_cs5530(ide_hwif_t *);
-
-static ide_pci_device_t cs5530_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_CYRIX,
- .device = PCI_DEVICE_ID_CYRIX_5530_IDE,
- .name = "CS5530",
- .init_chipset = init_chipset_cs5530,
- .init_iops = NULL,
- .init_hwif = init_hwif_cs5530,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* CS5530_H */
+++ /dev/null
-#ifndef NS87415_H
-#define NS87415_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-static void init_hwif_ns87415(ide_hwif_t *);
-
-static ide_pci_device_t ns87415_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_NS,
- .device = PCI_DEVICE_ID_NS_87415,
- .name = "NS87415",
- .init_chipset = NULL,
- .init_iops = NULL,
- .init_hwif = init_hwif_ns87415,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* NS87415_H */
+++ /dev/null
-#ifndef RZ100X_H
-#define RZ100X_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-static void init_hwif_rz1000(ide_hwif_t *);
-
-static ide_pci_device_t rz1000_chipsets[] __devinitdata = {
-{
- .vendor = PCI_VENDOR_ID_PCTECH,
- .device = PCI_DEVICE_ID_PCTECH_RZ1000,
- .name = "RZ1000",
- .init_chipset = NULL,
- .init_iops = NULL,
- .init_hwif = init_hwif_rz1000,
- .init_dma = NULL,
- .channels = 2,
- .autodma = NODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = PCI_VENDOR_ID_PCTECH,
- .device = PCI_DEVICE_ID_PCTECH_RZ1001,
- .name = "RZ1001",
- .init_chipset = NULL,
- .init_iops = NULL,
- .init_hwif = init_hwif_rz1000,
- .init_dma = NULL,
- .channels = 2,
- .autodma = NODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* RZ100X_H */
+++ /dev/null
-#ifndef SC1200_H
-#define SC1200_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define DISPLAY_SC1200_TIMINGS
-
-static unsigned int init_chipset_sc1200(struct pci_dev *, const char *);
-static void init_hwif_sc1200(ide_hwif_t *);
-
-static ide_pci_device_t sc1200_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_NS,
- .device = PCI_DEVICE_ID_NS_SCx200_IDE,
- .name = "SC1200",
- .init_chipset = init_chipset_sc1200,
- .init_iops = NULL,
- .init_hwif = init_hwif_sc1200,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* SC1200_H */
+++ /dev/null
-#ifndef SIIMAGE_H
-#define SIIMAGE_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#include <asm/io.h>
-
-#define DISPLAY_SIIMAGE_TIMINGS
-
-#undef SIIMAGE_VIRTUAL_DMAPIO
-#undef SIIMAGE_BUFFERED_TASKFILE
-#undef SIIMAGE_LARGE_DMA
-
-#define SII_DEBUG 0
-
-#if SII_DEBUG
-#define siiprintk(x...) printk(x)
-#else
-#define siiprintk(x...)
-#endif
-
-static unsigned int init_chipset_siimage(struct pci_dev *, const char *);
-static void init_iops_siimage(ide_hwif_t *);
-static void init_hwif_siimage(ide_hwif_t *);
-
-static ide_pci_device_t siimage_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_CMD,
- .device = PCI_DEVICE_ID_SII_680,
- .name = "SiI680",
- .init_chipset = init_chipset_siimage,
- .init_iops = init_iops_siimage,
- .init_hwif = init_hwif_siimage,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{ /* 1 */
- .vendor = PCI_VENDOR_ID_CMD,
- .device = PCI_DEVICE_ID_SII_3112,
- .name = "SiI3112 Serial ATA",
- .init_chipset = init_chipset_siimage,
- .init_iops = init_iops_siimage,
- .init_hwif = init_hwif_siimage,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{ /* 2 */
- .vendor = PCI_VENDOR_ID_CMD,
- .device = PCI_DEVICE_ID_SII_1210SA,
- .name = "Adaptec AAR-1210SA",
- .init_chipset = init_chipset_siimage,
- .init_iops = init_iops_siimage,
- .init_hwif = init_hwif_siimage,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* SIIMAGE_H */
+++ /dev/null
-#ifndef SIS5513_H
-#define SIS5513_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define DISPLAY_SIS_TIMINGS
-
-static unsigned int init_chipset_sis5513(struct pci_dev *, const char *);
-static void init_hwif_sis5513(ide_hwif_t *);
-
-static ide_pci_device_t sis5513_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_SI,
- .device = PCI_DEVICE_ID_SI_5513,
- .name = "SIS5513",
- .init_chipset = init_chipset_sis5513,
- .init_iops = NULL,
- .init_hwif = init_hwif_sis5513,
- .channels = 2,
- .autodma = NOAUTODMA,
- .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
- .bootable = ON_BOARD,
- .extra = 0
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* SIS5513_H */
+++ /dev/null
-#ifndef W82C105_H
-#define W82C105_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-static unsigned int init_chipset_sl82c105(struct pci_dev *, const char *);
-static void init_hwif_sl82c105(ide_hwif_t *);
-static void init_dma_sl82c105(ide_hwif_t *, unsigned long);
-
-static ide_pci_device_t sl82c105_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_WINBOND,
- .device = PCI_DEVICE_ID_WINBOND_82C105,
- .name = "W82C105",
- .init_chipset = init_chipset_sl82c105,
- .init_iops = NULL,
- .init_hwif = init_hwif_sl82c105,
- .init_dma = init_dma_sl82c105,
- .channels = 2,
- .autodma = NOAUTODMA,
- .enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* W82C105_H */
+++ /dev/null
-#ifndef SLC90E66_H
-#define SLC90E66_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define DISPLAY_SLC90E66_TIMINGS
-
-#define SLC90E66_DEBUG_DRIVE_INFO 0
-
-static unsigned int init_chipset_slc90e66(struct pci_dev *, const char *);
-static void init_hwif_slc90e66(ide_hwif_t *);
-
-static ide_pci_device_t slc90e66_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_EFAR,
- .device = PCI_DEVICE_ID_EFAR_SLC90E66_1,
- .name = "SLC90E66",
- .init_chipset = init_chipset_slc90e66,
- .init_iops = NULL,
- .init_hwif = init_hwif_slc90e66,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* SLC90E66_H */
+++ /dev/null
-/*
- * triflex.h
- *
- * Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
- * Author: Torben Mathiasen <torben.mathiasen@hp.com>
- *
- */
-#ifndef TRIFLEX_H
-#define TRIFLEX_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-static unsigned int __devinit init_chipset_triflex(struct pci_dev *, const char *);
-static void init_hwif_triflex(ide_hwif_t *);
-
-static ide_pci_device_t triflex_devices[] __devinitdata = {
- {
- .vendor = PCI_VENDOR_ID_COMPAQ,
- .device = PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE,
- .name = "TRIFLEX",
- .init_chipset = init_chipset_triflex,
- .init_iops = NULL,
- .init_hwif = init_hwif_triflex,
- .channels = 2,
- .autodma = AUTODMA,
- .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
- .bootable = ON_BOARD,
- },{
- .bootable = EOL,
- }
-};
-
-static struct pci_device_id triflex_pci_tbl[] = {
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE, PCI_ANY_ID,
- PCI_ANY_ID, 0, 0, 0 },
- { 0, },
-};
-MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
-
-#endif /* TRIFLEX_H */
+++ /dev/null
-#ifndef TRM290_H
-#define TRM290_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-extern void init_hwif_trm290(ide_hwif_t *);
-
-static ide_pci_device_t trm290_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_TEKRAM,
- .device = PCI_DEVICE_ID_TEKRAM_DC290,
- .name = "TRM290",
- .init_chipset = NULL,
- .init_iops = NULL,
- .init_hwif = init_hwif_trm290,
- .init_dma = NULL,
- .channels = 2,
- .autodma = NOAUTODMA,
- .enablebits = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* TRM290_H */
+++ /dev/null
-#ifndef VIA82CXXX_H
-#define VIA82CXXX_H
-
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#define DISPLAY_VIA_TIMINGS
-
-static unsigned int init_chipset_via82cxxx(struct pci_dev *, const char *);
-static void init_hwif_via82cxxx(ide_hwif_t *);
-
-static ide_pci_device_t via82cxxx_chipsets[] __devinitdata = {
- { /* 0 */
- .vendor = PCI_VENDOR_ID_VIA,
- .device = PCI_DEVICE_ID_VIA_82C576_1,
- .name = "VP_IDE",
- .init_chipset = init_chipset_via82cxxx,
- .init_hwif = init_hwif_via82cxxx,
- .channels = 2,
- .autodma = NOAUTODMA,
- .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{ /* 1 */
- .vendor = PCI_VENDOR_ID_VIA,
- .device = PCI_DEVICE_ID_VIA_82C586_1,
- .name = "VP_IDE",
- .init_chipset = init_chipset_via82cxxx,
- .init_hwif = init_hwif_via82cxxx,
- .channels = 2,
- .autodma = NOAUTODMA,
- .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
- .bootable = ON_BOARD,
- .extra = 0,
- },{
- .vendor = 0,
- .device = 0,
- .channels = 0,
- .bootable = EOL,
- }
-};
-
-#endif /* VIA82CXXX_H */
+++ /dev/null
-/*
- * Copyright (C) 2001 Broadcom Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/* Derived loosely from ide-pmac.c, so:
- *
- * Copyright (C) 1998 Paul Mackerras.
- * Copyright (C) 1995-1998 Mark Lord
- */
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/ide.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/sibyte/sb1250_int.h>
-
-#define __IDE_SWARM_C
-
-#include <asm/sibyte/swarm_ide.h>
-
-void __init swarm_ide_probe(void)
-{
- int i;
- ide_hwif_t *hwif;
- /*
- * Find the first untaken slot in hwifs
- */
- for (i = 0; i < MAX_HWIFS; i++) {
- if (!ide_hwifs[i].io_ports[IDE_DATA_OFFSET]) {
- break;
- }
- }
- if (i == MAX_HWIFS) {
- printk("No space for SWARM onboard IDE driver in ide_hwifs[]. Not enabled.\n");
- return;
- }
-
- /* Set up our stuff */
- hwif = &ide_hwifs[i];
- hwif->hw.io_ports[IDE_DATA_OFFSET] = SWARM_IDE_REG(0x1f0);
- hwif->hw.io_ports[IDE_ERROR_OFFSET] = SWARM_IDE_REG(0x1f1);
- hwif->hw.io_ports[IDE_NSECTOR_OFFSET] = SWARM_IDE_REG(0x1f2);
- hwif->hw.io_ports[IDE_SECTOR_OFFSET] = SWARM_IDE_REG(0x1f3);
- hwif->hw.io_ports[IDE_LCYL_OFFSET] = SWARM_IDE_REG(0x1f4);
- hwif->hw.io_ports[IDE_HCYL_OFFSET] = SWARM_IDE_REG(0x1f5);
- hwif->hw.io_ports[IDE_SELECT_OFFSET] = SWARM_IDE_REG(0x1f6);
- hwif->hw.io_ports[IDE_STATUS_OFFSET] = SWARM_IDE_REG(0x1f7);
- hwif->hw.io_ports[IDE_CONTROL_OFFSET] = SWARM_IDE_REG(0x3f6);
- hwif->hw.io_ports[IDE_IRQ_OFFSET] = SWARM_IDE_REG(0x3f7);
-// hwif->hw->ack_intr = swarm_ide_ack_intr;
- hwif->hw.irq = SWARM_IDE_INT;
-#if 0
- hwif->iops = swarm_iops;
-#else
- hwif->OUTB = hwif->OUTBP = swarm_outb;
- hwif->OUTW = hwif->OUTWP = swarm_outw;
- hwif->OUTL = hwif->OUTLP = swarm_outl;
- hwif->OUTSW = hwif->OUTSWP = swarm_outsw;
- hwif->OUTSL = hwif->OUTSLP = swarm_outsl;
- hwif->INB = hwif->INBP = swarm_inb;
- hwif->INW = hwif->INWP = swarm_inw;
- hwif->INL = hwif->INLP = swarm_inl;
- hwif->INSW = hwif->INSWP = swarm_insw;
- hwif->INSL = hwif->INSLP = swarm_insl;
-#endif
-#if 0
- hwif->pioops = swarm_pio_ops;
-#else
- hwif->ata_input_data = swarm_ata_input_data;
- hwif->ata_output_data = swarm_ata_output_data;
- hwif->atapi_input_bytes = swarm_atapi_input_bytes;
- hwif->atapi_output_bytes = swarm_atapi_output_bytes;
-#endif
- memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
- hwif->irq = hwif->hw.irq;
- printk("SWARM onboard IDE configured as device %i\n", i);
-
-#ifndef HWIF_PROBE_CLASSIC_METHOD
- probe_hwif_init(hwif->index);
-#endif /* HWIF_PROBE_CLASSIC_METHOD */
-
-}
-
+++ /dev/null
-/*
- * dm-snapshot.c
- *
- * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
- *
- * This file is released under the GPL.
- */
-
-#include "dm.h"
-#include "dm-snap.h"
-#include "dm-io.h"
-#include "kcopyd.h"
-
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-
-/*-----------------------------------------------------------------
- * Persistent snapshots, by persistent we mean that the snapshot
- * will survive a reboot.
- *---------------------------------------------------------------*/
-
-/*
- * We need to store a record of which parts of the origin have
- * been copied to the snapshot device. The snapshot code
- * requires that we copy exception chunks to chunk aligned areas
- * of the COW store. It makes sense therefore, to store the
- * metadata in chunk size blocks.
- *
- * There is no backward or forward compatibility implemented,
- * snapshots with different disk versions than the kernel will
- * not be usable. It is expected that "lvcreate" will blank out
- * the start of a fresh COW device before calling the snapshot
- * constructor.
- *
- * The first chunk of the COW device just contains the header.
- * After this there is a chunk filled with exception metadata,
- * followed by as many exception chunks as can fit in the
- * metadata areas.
- *
- * All on disk structures are in little-endian format. The end
- * of the exceptions info is indicated by an exception with a
- * new_chunk of 0, which is invalid since it would point to the
- * header chunk.
- */
-
-/*
- * Magic for persistent snapshots: "SnAp" - Feeble isn't it.
- */
-#define SNAP_MAGIC 0x70416e53
-
-/*
- * The on-disk version of the metadata.
- */
-#define SNAPSHOT_DISK_VERSION 1
-
-struct disk_header {
- uint32_t magic;
-
- /*
- * Is this snapshot valid. There is no way of recovering
- * an invalid snapshot.
- */
- uint32_t valid;
-
- /*
- * Simple, incrementing version. no backward
- * compatibility.
- */
- uint32_t version;
-
- /* In sectors */
- uint32_t chunk_size;
-};
-
-struct disk_exception {
- uint64_t old_chunk;
- uint64_t new_chunk;
-};
-
-struct commit_callback {
- void (*callback)(void *, int success);
- void *context;
-};
-
-/*
- * The top level structure for a persistent exception store.
- */
-struct pstore {
- struct dm_snapshot *snap; /* up pointer to my snapshot */
- int version;
- int valid;
- uint32_t chunk_size;
- uint32_t exceptions_per_area;
-
- /*
- * Now that we have an asynchronous kcopyd there is no
- * need for large chunk sizes, so it wont hurt to have a
- * whole chunks worth of metadata in memory at once.
- */
- void *area;
-
- /*
- * Used to keep track of which metadata area the data in
- * 'chunk' refers to.
- */
- uint32_t current_area;
-
- /*
- * The next free chunk for an exception.
- */
- uint32_t next_free;
-
- /*
- * The index of next free exception in the current
- * metadata area.
- */
- uint32_t current_committed;
-
- atomic_t pending_count;
- uint32_t callback_count;
- struct commit_callback *callbacks;
-};
-
-static inline unsigned int sectors_to_pages(unsigned int sectors)
-{
- return sectors / (PAGE_SIZE >> 9);
-}
-
-static int alloc_area(struct pstore *ps)
-{
- int r = -ENOMEM;
- size_t len;
-
- len = ps->chunk_size << SECTOR_SHIFT;
-
- /*
- * Allocate the chunk_size block of memory that will hold
- * a single metadata area.
- */
- ps->area = vmalloc(len);
- if (!ps->area)
- return r;
-
- return 0;
-}
-
-static void free_area(struct pstore *ps)
-{
- vfree(ps->area);
-}
-
-/*
- * Read or write a chunk aligned and sized block of data from a device.
- */
-static int chunk_io(struct pstore *ps, uint32_t chunk, int rw)
-{
- struct io_region where;
- unsigned long bits;
-
- where.bdev = ps->snap->cow->bdev;
- where.sector = ps->chunk_size * chunk;
- where.count = ps->chunk_size;
-
- return dm_io_sync_vm(1, &where, rw, ps->area, &bits);
-}
-
-/*
- * Read or write a metadata area. Remembering to skip the first
- * chunk which holds the header.
- */
-static int area_io(struct pstore *ps, uint32_t area, int rw)
-{
- int r;
- uint32_t chunk;
-
- /* convert a metadata area index to a chunk index */
- chunk = 1 + ((ps->exceptions_per_area + 1) * area);
-
- r = chunk_io(ps, chunk, rw);
- if (r)
- return r;
-
- ps->current_area = area;
- return 0;
-}
-
-static int zero_area(struct pstore *ps, uint32_t area)
-{
- memset(ps->area, 0, ps->chunk_size << SECTOR_SHIFT);
- return area_io(ps, area, WRITE);
-}
-
-static int read_header(struct pstore *ps, int *new_snapshot)
-{
- int r;
- struct disk_header *dh;
-
- r = chunk_io(ps, 0, READ);
- if (r)
- return r;
-
- dh = (struct disk_header *) ps->area;
-
- if (le32_to_cpu(dh->magic) == 0) {
- *new_snapshot = 1;
-
- } else if (le32_to_cpu(dh->magic) == SNAP_MAGIC) {
- *new_snapshot = 0;
- ps->valid = le32_to_cpu(dh->valid);
- ps->version = le32_to_cpu(dh->version);
- ps->chunk_size = le32_to_cpu(dh->chunk_size);
-
- } else {
- DMWARN("Invalid/corrupt snapshot");
- r = -ENXIO;
- }
-
- return r;
-}
-
-static int write_header(struct pstore *ps)
-{
- struct disk_header *dh;
-
- memset(ps->area, 0, ps->chunk_size << SECTOR_SHIFT);
-
- dh = (struct disk_header *) ps->area;
- dh->magic = cpu_to_le32(SNAP_MAGIC);
- dh->valid = cpu_to_le32(ps->valid);
- dh->version = cpu_to_le32(ps->version);
- dh->chunk_size = cpu_to_le32(ps->chunk_size);
-
- return chunk_io(ps, 0, WRITE);
-}
-
-/*
- * Access functions for the disk exceptions, these do the endian conversions.
- */
-static struct disk_exception *get_exception(struct pstore *ps, uint32_t index)
-{
- if (index >= ps->exceptions_per_area)
- return NULL;
-
- return ((struct disk_exception *) ps->area) + index;
-}
-
-static int read_exception(struct pstore *ps,
- uint32_t index, struct disk_exception *result)
-{
- struct disk_exception *e;
-
- e = get_exception(ps, index);
- if (!e)
- return -EINVAL;
-
- /* copy it */
- result->old_chunk = le64_to_cpu(e->old_chunk);
- result->new_chunk = le64_to_cpu(e->new_chunk);
-
- return 0;
-}
-
-static int write_exception(struct pstore *ps,
- uint32_t index, struct disk_exception *de)
-{
- struct disk_exception *e;
-
- e = get_exception(ps, index);
- if (!e)
- return -EINVAL;
-
- /* copy it */
- e->old_chunk = cpu_to_le64(de->old_chunk);
- e->new_chunk = cpu_to_le64(de->new_chunk);
-
- return 0;
-}
-
-/*
- * Registers the exceptions that are present in the current area.
- * 'full' is filled in to indicate if the area has been
- * filled.
- */
-static int insert_exceptions(struct pstore *ps, int *full)
-{
- int r;
- unsigned int i;
- struct disk_exception de;
-
- /* presume the area is full */
- *full = 1;
-
- for (i = 0; i < ps->exceptions_per_area; i++) {
- r = read_exception(ps, i, &de);
-
- if (r)
- return r;
-
- /*
- * If the new_chunk is pointing at the start of
- * the COW device, where the first metadata area
- * is we know that we've hit the end of the
- * exceptions. Therefore the area is not full.
- */
- if (de.new_chunk == 0LL) {
- ps->current_committed = i;
- *full = 0;
- break;
- }
-
- /*
- * Keep track of the start of the free chunks.
- */
- if (ps->next_free <= de.new_chunk)
- ps->next_free = de.new_chunk + 1;
-
- /*
- * Otherwise we add the exception to the snapshot.
- */
- r = dm_add_exception(ps->snap, de.old_chunk, de.new_chunk);
- if (r)
- return r;
- }
-
- return 0;
-}
-
-static int read_exceptions(struct pstore *ps)
-{
- uint32_t area;
- int r, full = 1;
-
- /*
- * Keeping reading chunks and inserting exceptions until
- * we find a partially full area.
- */
- for (area = 0; full; area++) {
- r = area_io(ps, area, READ);
- if (r)
- return r;
-
- r = insert_exceptions(ps, &full);
- if (r)
- return r;
- }
-
- return 0;
-}
-
-static inline struct pstore *get_info(struct exception_store *store)
-{
- return (struct pstore *) store->context;
-}
-
-static void persistent_fraction_full(struct exception_store *store,
- sector_t *numerator, sector_t *denominator)
-{
- *numerator = get_info(store)->next_free * store->snap->chunk_size;
- *denominator = get_dev_size(store->snap->cow->bdev);
-}
-
-static void persistent_destroy(struct exception_store *store)
-{
- struct pstore *ps = get_info(store);
-
- dm_io_put(sectors_to_pages(ps->chunk_size));
- vfree(ps->callbacks);
- free_area(ps);
- kfree(ps);
-}
-
-static int persistent_read_metadata(struct exception_store *store)
-{
- int r, new_snapshot;
- struct pstore *ps = get_info(store);
-
- /*
- * Read the snapshot header.
- */
- r = read_header(ps, &new_snapshot);
- if (r)
- return r;
-
- /*
- * Do we need to setup a new snapshot ?
- */
- if (new_snapshot) {
- r = write_header(ps);
- if (r) {
- DMWARN("write_header failed");
- return r;
- }
-
- r = zero_area(ps, 0);
- if (r) {
- DMWARN("zero_area(0) failed");
- return r;
- }
-
- } else {
- /*
- * Sanity checks.
- */
- if (!ps->valid) {
- DMWARN("snapshot is marked invalid");
- return -EINVAL;
- }
-
- if (ps->version != SNAPSHOT_DISK_VERSION) {
- DMWARN("unable to handle snapshot disk version %d",
- ps->version);
- return -EINVAL;
- }
-
- /*
- * Read the metadata.
- */
- r = read_exceptions(ps);
- if (r)
- return r;
- }
-
- return 0;
-}
-
-static int persistent_prepare(struct exception_store *store,
- struct exception *e)
-{
- struct pstore *ps = get_info(store);
- uint32_t stride;
- sector_t size = get_dev_size(store->snap->cow->bdev);
-
- /* Is there enough room ? */
- if (size < ((ps->next_free + 1) * store->snap->chunk_size))
- return -ENOSPC;
-
- e->new_chunk = ps->next_free;
-
- /*
- * Move onto the next free pending, making sure to take
- * into account the location of the metadata chunks.
- */
- stride = (ps->exceptions_per_area + 1);
- if ((++ps->next_free % stride) == 1)
- ps->next_free++;
-
- atomic_inc(&ps->pending_count);
- return 0;
-}
-
-static void persistent_commit(struct exception_store *store,
- struct exception *e,
- void (*callback) (void *, int success),
- void *callback_context)
-{
- int r;
- unsigned int i;
- struct pstore *ps = get_info(store);
- struct disk_exception de;
- struct commit_callback *cb;
-
- de.old_chunk = e->old_chunk;
- de.new_chunk = e->new_chunk;
- write_exception(ps, ps->current_committed++, &de);
-
- /*
- * Add the callback to the back of the array. This code
- * is the only place where the callback array is
- * manipulated, and we know that it will never be called
- * multiple times concurrently.
- */
- cb = ps->callbacks + ps->callback_count++;
- cb->callback = callback;
- cb->context = callback_context;
-
- /*
- * If there are no more exceptions in flight, or we have
- * filled this metadata area we commit the exceptions to
- * disk.
- */
- if (atomic_dec_and_test(&ps->pending_count) ||
- (ps->current_committed == ps->exceptions_per_area)) {
- r = area_io(ps, ps->current_area, WRITE);
- if (r)
- ps->valid = 0;
-
- for (i = 0; i < ps->callback_count; i++) {
- cb = ps->callbacks + i;
- cb->callback(cb->context, r == 0 ? 1 : 0);
- }
-
- ps->callback_count = 0;
- }
-
- /*
- * Have we completely filled the current area ?
- */
- if (ps->current_committed == ps->exceptions_per_area) {
- ps->current_committed = 0;
- r = zero_area(ps, ps->current_area + 1);
- if (r)
- ps->valid = 0;
- }
-}
-
-static void persistent_drop(struct exception_store *store)
-{
- struct pstore *ps = get_info(store);
-
- ps->valid = 0;
- if (write_header(ps))
- DMWARN("write header failed");
-}
-
-int dm_create_persistent(struct exception_store *store, uint32_t chunk_size)
-{
- int r;
- struct pstore *ps;
-
- r = dm_io_get(sectors_to_pages(chunk_size));
- if (r)
- return r;
-
- /* allocate the pstore */
- ps = kmalloc(sizeof(*ps), GFP_KERNEL);
- if (!ps) {
- r = -ENOMEM;
- goto bad;
- }
-
- ps->snap = store->snap;
- ps->valid = 1;
- ps->version = SNAPSHOT_DISK_VERSION;
- ps->chunk_size = chunk_size;
- ps->exceptions_per_area = (chunk_size << SECTOR_SHIFT) /
- sizeof(struct disk_exception);
- ps->next_free = 2; /* skipping the header and first area */
- ps->current_committed = 0;
-
- r = alloc_area(ps);
- if (r)
- goto bad;
-
- /*
- * Allocate space for all the callbacks.
- */
- ps->callback_count = 0;
- atomic_set(&ps->pending_count, 0);
- ps->callbacks = dm_vcalloc(ps->exceptions_per_area,
- sizeof(*ps->callbacks));
-
- if (!ps->callbacks) {
- r = -ENOMEM;
- goto bad;
- }
-
- store->destroy = persistent_destroy;
- store->read_metadata = persistent_read_metadata;
- store->prepare_exception = persistent_prepare;
- store->commit_exception = persistent_commit;
- store->drop_snapshot = persistent_drop;
- store->fraction_full = persistent_fraction_full;
- store->context = ps;
-
- return 0;
-
- bad:
- dm_io_put(sectors_to_pages(chunk_size));
- if (ps) {
- if (ps->area)
- free_area(ps);
-
- kfree(ps);
- }
- return r;
-}
-
-/*-----------------------------------------------------------------
- * Implementation of the store for non-persistent snapshots.
- *---------------------------------------------------------------*/
-struct transient_c {
- sector_t next_free;
-};
-
-static void transient_destroy(struct exception_store *store)
-{
- kfree(store->context);
-}
-
-static int transient_read_metadata(struct exception_store *store)
-{
- return 0;
-}
-
-static int transient_prepare(struct exception_store *store, struct exception *e)
-{
- struct transient_c *tc = (struct transient_c *) store->context;
- sector_t size = get_dev_size(store->snap->cow->bdev);
-
- if (size < (tc->next_free + store->snap->chunk_size))
- return -1;
-
- e->new_chunk = sector_to_chunk(store->snap, tc->next_free);
- tc->next_free += store->snap->chunk_size;
-
- return 0;
-}
-
-static void transient_commit(struct exception_store *store,
- struct exception *e,
- void (*callback) (void *, int success),
- void *callback_context)
-{
- /* Just succeed */
- callback(callback_context, 1);
-}
-
-static void transient_fraction_full(struct exception_store *store,
- sector_t *numerator, sector_t *denominator)
-{
- *numerator = ((struct transient_c *) store->context)->next_free;
- *denominator = get_dev_size(store->snap->cow->bdev);
-}
-
-int dm_create_transient(struct exception_store *store,
- struct dm_snapshot *s, int blocksize)
-{
- struct transient_c *tc;
-
- memset(store, 0, sizeof(*store));
- store->destroy = transient_destroy;
- store->read_metadata = transient_read_metadata;
- store->prepare_exception = transient_prepare;
- store->commit_exception = transient_commit;
- store->fraction_full = transient_fraction_full;
- store->snap = s;
-
- tc = kmalloc(sizeof(struct transient_c), GFP_KERNEL);
- if (!tc)
- return -ENOMEM;
-
- tc->next_free = 0;
- store->context = tc;
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2003 Sistina Software
- *
- * This file is released under the GPL.
- */
-
-#include "dm-io.h"
-
-#include <linux/bio.h>
-#include <linux/mempool.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-
-#define BIO_POOL_SIZE 256
-
-
-/*-----------------------------------------------------------------
- * Bio set, move this to bio.c
- *---------------------------------------------------------------*/
-#define BV_NAME_SIZE 16
-struct biovec_pool {
- int nr_vecs;
- char name[BV_NAME_SIZE];
- kmem_cache_t *slab;
- mempool_t *pool;
- atomic_t allocated; /* FIXME: debug */
-};
-
-#define BIOVEC_NR_POOLS 6
-struct bio_set {
- char name[BV_NAME_SIZE];
- kmem_cache_t *bio_slab;
- mempool_t *bio_pool;
- struct biovec_pool pools[BIOVEC_NR_POOLS];
-};
-
-static void bio_set_exit(struct bio_set *bs)
-{
- unsigned i;
- struct biovec_pool *bp;
-
- if (bs->bio_pool)
- mempool_destroy(bs->bio_pool);
-
- if (bs->bio_slab)
- kmem_cache_destroy(bs->bio_slab);
-
- for (i = 0; i < BIOVEC_NR_POOLS; i++) {
- bp = bs->pools + i;
- if (bp->pool)
- mempool_destroy(bp->pool);
-
- if (bp->slab)
- kmem_cache_destroy(bp->slab);
- }
-}
-
-static void mk_name(char *str, size_t len, const char *prefix, unsigned count)
-{
- snprintf(str, len, "%s-%u", prefix, count);
-}
-
-static int bio_set_init(struct bio_set *bs, const char *slab_prefix,
- unsigned pool_entries, unsigned scale)
-{
- /* FIXME: this must match bvec_index(), why not go the
- * whole hog and have a pool per power of 2 ? */
- static unsigned _vec_lengths[BIOVEC_NR_POOLS] = {
- 1, 4, 16, 64, 128, BIO_MAX_PAGES
- };
-
-
- unsigned i, size;
- struct biovec_pool *bp;
-
- /* zero the bs so we can tear down properly on error */
- memset(bs, 0, sizeof(*bs));
-
- /*
- * Set up the bio pool.
- */
- snprintf(bs->name, sizeof(bs->name), "%s-bio", slab_prefix);
-
- bs->bio_slab = kmem_cache_create(bs->name, sizeof(struct bio), 0,
- SLAB_HWCACHE_ALIGN, NULL, NULL);
- if (!bs->bio_slab) {
- DMWARN("can't init bio slab");
- goto bad;
- }
-
- bs->bio_pool = mempool_create(pool_entries, mempool_alloc_slab,
- mempool_free_slab, bs->bio_slab);
- if (!bs->bio_pool) {
- DMWARN("can't init bio pool");
- goto bad;
- }
-
- /*
- * Set up the biovec pools.
- */
- for (i = 0; i < BIOVEC_NR_POOLS; i++) {
- bp = bs->pools + i;
- bp->nr_vecs = _vec_lengths[i];
- atomic_set(&bp->allocated, 1); /* FIXME: debug */
-
-
- size = bp->nr_vecs * sizeof(struct bio_vec);
-
- mk_name(bp->name, sizeof(bp->name), slab_prefix, i);
- bp->slab = kmem_cache_create(bp->name, size, 0,
- SLAB_HWCACHE_ALIGN, NULL, NULL);
- if (!bp->slab) {
- DMWARN("can't init biovec slab cache");
- goto bad;
- }
-
- if (i >= scale)
- pool_entries >>= 1;
-
- bp->pool = mempool_create(pool_entries, mempool_alloc_slab,
- mempool_free_slab, bp->slab);
- if (!bp->pool) {
- DMWARN("can't init biovec mempool");
- goto bad;
- }
- }
-
- return 0;
-
- bad:
- bio_set_exit(bs);
- return -ENOMEM;
-}
-
-/* FIXME: blech */
-static inline unsigned bvec_index(unsigned nr)
-{
- switch (nr) {
- case 1: return 0;
- case 2 ... 4: return 1;
- case 5 ... 16: return 2;
- case 17 ... 64: return 3;
- case 65 ... 128:return 4;
- case 129 ... BIO_MAX_PAGES: return 5;
- }
-
- BUG();
- return 0;
-}
-
-static inline void bs_bio_init(struct bio *bio)
-{
- bio->bi_next = NULL;
- bio->bi_flags = 1 << BIO_UPTODATE;
- bio->bi_rw = 0;
- bio->bi_vcnt = 0;
- bio->bi_idx = 0;
- bio->bi_phys_segments = 0;
- bio->bi_hw_segments = 0;
- bio->bi_size = 0;
- bio->bi_max_vecs = 0;
- bio->bi_end_io = NULL;
- atomic_set(&bio->bi_cnt, 1);
- bio->bi_private = NULL;
-}
-
-static unsigned _bio_count = 0;
-struct bio *bio_set_alloc(struct bio_set *bs, int gfp_mask, int nr_iovecs)
-{
- struct biovec_pool *bp;
- struct bio_vec *bv = NULL;
- unsigned long idx;
- struct bio *bio;
-
- bio = mempool_alloc(bs->bio_pool, gfp_mask);
- if (unlikely(!bio))
- return NULL;
-
- bio_init(bio);
-
- if (likely(nr_iovecs)) {
- idx = bvec_index(nr_iovecs);
- bp = bs->pools + idx;
- bv = mempool_alloc(bp->pool, gfp_mask);
- if (!bv) {
- mempool_free(bio, bs->bio_pool);
- return NULL;
- }
-
- memset(bv, 0, bp->nr_vecs * sizeof(*bv));
- bio->bi_flags |= idx << BIO_POOL_OFFSET;
- bio->bi_max_vecs = bp->nr_vecs;
- atomic_inc(&bp->allocated);
- }
-
- bio->bi_io_vec = bv;
- return bio;
-}
-
-static void bio_set_free(struct bio_set *bs, struct bio *bio)
-{
- struct biovec_pool *bp = bs->pools + BIO_POOL_IDX(bio);
-
- if (atomic_dec_and_test(&bp->allocated))
- BUG();
-
- mempool_free(bio->bi_io_vec, bp->pool);
- mempool_free(bio, bs->bio_pool);
-}
-
-/*-----------------------------------------------------------------
- * dm-io proper
- *---------------------------------------------------------------*/
-static struct bio_set _bios;
-
-/* FIXME: can we shrink this ? */
-struct io {
- unsigned long error;
- atomic_t count;
- struct task_struct *sleeper;
- io_notify_fn callback;
- void *context;
-};
-
-/*
- * io contexts are only dynamically allocated for asynchronous
- * io. Since async io is likely to be the majority of io we'll
- * have the same number of io contexts as buffer heads ! (FIXME:
- * must reduce this).
- */
-static unsigned _num_ios;
-static mempool_t *_io_pool;
-
-static void *alloc_io(int gfp_mask, void *pool_data)
-{
- return kmalloc(sizeof(struct io), gfp_mask);
-}
-
-static void free_io(void *element, void *pool_data)
-{
- kfree(element);
-}
-
-static unsigned int pages_to_ios(unsigned int pages)
-{
- return 4 * pages; /* too many ? */
-}
-
-static int resize_pool(unsigned int new_ios)
-{
- int r = 0;
-
- if (_io_pool) {
- if (new_ios == 0) {
- /* free off the pool */
- mempool_destroy(_io_pool);
- _io_pool = NULL;
- bio_set_exit(&_bios);
-
- } else {
- /* resize the pool */
- r = mempool_resize(_io_pool, new_ios, GFP_KERNEL);
- }
-
- } else {
- /* create new pool */
- _io_pool = mempool_create(new_ios, alloc_io, free_io, NULL);
- if (!_io_pool)
- r = -ENOMEM;
-
- r = bio_set_init(&_bios, "dm-io", 512, 1);
- if (r) {
- mempool_destroy(_io_pool);
- _io_pool = NULL;
- }
- }
-
- if (!r)
- _num_ios = new_ios;
-
- return r;
-}
-
-int dm_io_get(unsigned int num_pages)
-{
- return resize_pool(_num_ios + pages_to_ios(num_pages));
-}
-
-void dm_io_put(unsigned int num_pages)
-{
- resize_pool(_num_ios - pages_to_ios(num_pages));
-}
-
-/*-----------------------------------------------------------------
- * We need to keep track of which region a bio is doing io for.
- * In order to save a memory allocation we store this the last
- * bvec which we know is unused (blech).
- *---------------------------------------------------------------*/
-static inline void bio_set_region(struct bio *bio, unsigned region)
-{
- bio->bi_io_vec[bio->bi_max_vecs - 1].bv_len = region;
-}
-
-static inline unsigned bio_get_region(struct bio *bio)
-{
- return bio->bi_io_vec[bio->bi_max_vecs - 1].bv_len;
-}
-
-/*-----------------------------------------------------------------
- * We need an io object to keep track of the number of bios that
- * have been dispatched for a particular io.
- *---------------------------------------------------------------*/
-static void dec_count(struct io *io, unsigned int region, int error)
-{
- if (error)
- set_bit(region, &io->error);
-
- if (atomic_dec_and_test(&io->count)) {
- if (io->sleeper)
- wake_up_process(io->sleeper);
-
- else {
- int r = io->error;
- io_notify_fn fn = io->callback;
- void *context = io->context;
-
- mempool_free(io, _io_pool);
- fn(r, context);
- }
- }
-}
-
-/* FIXME Move this to bio.h? */
-static void zero_fill_bio(struct bio *bio)
-{
- unsigned long flags;
- struct bio_vec *bv;
- int i;
-
- bio_for_each_segment(bv, bio, i) {
- char *data = bvec_kmap_irq(bv, &flags);
- memset(data, 0, bv->bv_len);
- flush_dcache_page(bv->bv_page);
- bvec_kunmap_irq(data, &flags);
- }
-}
-
-static int endio(struct bio *bio, unsigned int done, int error)
-{
- struct io *io = (struct io *) bio->bi_private;
-
- /* keep going until we've finished */
- if (bio->bi_size)
- return 1;
-
- if (error && bio_data_dir(bio) == READ)
- zero_fill_bio(bio);
-
- dec_count(io, bio_get_region(bio), error);
- bio_put(bio);
-
- return 0;
-}
-
-static void bio_dtr(struct bio *bio)
-{
- _bio_count--;
- bio_set_free(&_bios, bio);
-}
-
-/*-----------------------------------------------------------------
- * These little objects provide an abstraction for getting a new
- * destination page for io.
- *---------------------------------------------------------------*/
-struct dpages {
- void (*get_page)(struct dpages *dp,
- struct page **p, unsigned long *len, unsigned *offset);
- void (*next_page)(struct dpages *dp);
-
- unsigned context_u;
- void *context_ptr;
-};
-
-/*
- * Functions for getting the pages from a list.
- */
-static void list_get_page(struct dpages *dp,
- struct page **p, unsigned long *len, unsigned *offset)
-{
- unsigned o = dp->context_u;
- struct page_list *pl = (struct page_list *) dp->context_ptr;
-
- *p = pl->page;
- *len = PAGE_SIZE - o;
- *offset = o;
-}
-
-static void list_next_page(struct dpages *dp)
-{
- struct page_list *pl = (struct page_list *) dp->context_ptr;
- dp->context_ptr = pl->next;
- dp->context_u = 0;
-}
-
-static void list_dp_init(struct dpages *dp, struct page_list *pl, unsigned offset)
-{
- dp->get_page = list_get_page;
- dp->next_page = list_next_page;
- dp->context_u = offset;
- dp->context_ptr = pl;
-}
-
-/*
- * Functions for getting the pages from a bvec.
- */
-static void bvec_get_page(struct dpages *dp,
- struct page **p, unsigned long *len, unsigned *offset)
-{
- struct bio_vec *bvec = (struct bio_vec *) dp->context_ptr;
- *p = bvec->bv_page;
- *len = bvec->bv_len;
- *offset = bvec->bv_offset;
-}
-
-static void bvec_next_page(struct dpages *dp)
-{
- struct bio_vec *bvec = (struct bio_vec *) dp->context_ptr;
- dp->context_ptr = bvec + 1;
-}
-
-static void bvec_dp_init(struct dpages *dp, struct bio_vec *bvec)
-{
- dp->get_page = bvec_get_page;
- dp->next_page = bvec_next_page;
- dp->context_ptr = bvec;
-}
-
-static void vm_get_page(struct dpages *dp,
- struct page **p, unsigned long *len, unsigned *offset)
-{
- *p = vmalloc_to_page(dp->context_ptr);
- *offset = dp->context_u;
- *len = PAGE_SIZE - dp->context_u;
-}
-
-static void vm_next_page(struct dpages *dp)
-{
- dp->context_ptr += PAGE_SIZE - dp->context_u;
- dp->context_u = 0;
-}
-
-static void vm_dp_init(struct dpages *dp, void *data)
-{
- dp->get_page = vm_get_page;
- dp->next_page = vm_next_page;
- dp->context_u = ((unsigned long) data) & (PAGE_SIZE - 1);
- dp->context_ptr = data;
-}
-
-/*-----------------------------------------------------------------
- * IO routines that accept a list of pages.
- *---------------------------------------------------------------*/
-static void do_region(int rw, unsigned int region, struct io_region *where,
- struct dpages *dp, struct io *io)
-{
- struct bio *bio;
- struct page *page;
- unsigned long len;
- unsigned offset;
- unsigned num_bvecs;
- sector_t remaining = where->count;
-
- while (remaining) {
- /*
- * Allocate a suitably sized bio, we add an extra
- * bvec for bio_get/set_region().
- */
- num_bvecs = (remaining / (PAGE_SIZE >> 9)) + 2;
- _bio_count++;
- bio = bio_set_alloc(&_bios, GFP_NOIO, num_bvecs);
- bio->bi_sector = where->sector + (where->count - remaining);
- bio->bi_bdev = where->bdev;
- bio->bi_end_io = endio;
- bio->bi_private = io;
- bio->bi_destructor = bio_dtr;
- bio_set_region(bio, region);
-
- /*
- * Try and add as many pages as possible.
- */
- while (remaining) {
- dp->get_page(dp, &page, &len, &offset);
- len = min(len, to_bytes(remaining));
- if (!bio_add_page(bio, page, len, offset))
- break;
-
- offset = 0;
- remaining -= to_sector(len);
- dp->next_page(dp);
- }
-
- atomic_inc(&io->count);
- submit_bio(rw, bio);
- }
-}
-
-static void dispatch_io(int rw, unsigned int num_regions,
- struct io_region *where, struct dpages *dp,
- struct io *io, int sync)
-{
- int i;
- struct dpages old_pages = *dp;
-
- if (sync)
- rw |= (1 << BIO_RW_SYNC);
-
- /*
- * For multiple regions we need to be careful to rewind
- * the dp object for each call to do_region.
- */
- for (i = 0; i < num_regions; i++) {
- *dp = old_pages;
- if (where[i].count)
- do_region(rw, i, where + i, dp, io);
- }
-
- /*
- * Drop the extra refence that we were holding to avoid
- * the io being completed too early.
- */
- dec_count(io, 0, 0);
-}
-
-static int sync_io(unsigned int num_regions, struct io_region *where,
- int rw, struct dpages *dp, unsigned long *error_bits)
-{
- struct io io;
-
- if (num_regions > 1 && rw != WRITE) {
- WARN_ON(1);
- return -EIO;
- }
-
- io.error = 0;
- atomic_set(&io.count, 1); /* see dispatch_io() */
- io.sleeper = current;
-
- dispatch_io(rw, num_regions, where, dp, &io, 1);
-
- while (1) {
- set_current_state(TASK_UNINTERRUPTIBLE);
-
- if (!atomic_read(&io.count) || signal_pending(current))
- break;
-
- io_schedule();
- }
- set_current_state(TASK_RUNNING);
-
- if (atomic_read(&io.count))
- return -EINTR;
-
- *error_bits = io.error;
- return io.error ? -EIO : 0;
-}
-
-static int async_io(unsigned int num_regions, struct io_region *where, int rw,
- struct dpages *dp, io_notify_fn fn, void *context)
-{
- struct io *io;
-
- if (num_regions > 1 && rw != WRITE) {
- WARN_ON(1);
- fn(1, context);
- return -EIO;
- }
-
- io = mempool_alloc(_io_pool, GFP_NOIO);
- io->error = 0;
- atomic_set(&io->count, 1); /* see dispatch_io() */
- io->sleeper = NULL;
- io->callback = fn;
- io->context = context;
-
- dispatch_io(rw, num_regions, where, dp, io, 0);
- return 0;
-}
-
-int dm_io_sync(unsigned int num_regions, struct io_region *where, int rw,
- struct page_list *pl, unsigned int offset,
- unsigned long *error_bits)
-{
- struct dpages dp;
- list_dp_init(&dp, pl, offset);
- return sync_io(num_regions, where, rw, &dp, error_bits);
-}
-
-int dm_io_sync_bvec(unsigned int num_regions, struct io_region *where, int rw,
- struct bio_vec *bvec, unsigned long *error_bits)
-{
- struct dpages dp;
- bvec_dp_init(&dp, bvec);
- return sync_io(num_regions, where, rw, &dp, error_bits);
-}
-
-int dm_io_sync_vm(unsigned int num_regions, struct io_region *where, int rw,
- void *data, unsigned long *error_bits)
-{
- struct dpages dp;
- vm_dp_init(&dp, data);
- return sync_io(num_regions, where, rw, &dp, error_bits);
-}
-
-int dm_io_async(unsigned int num_regions, struct io_region *where, int rw,
- struct page_list *pl, unsigned int offset,
- io_notify_fn fn, void *context)
-{
- struct dpages dp;
- list_dp_init(&dp, pl, offset);
- return async_io(num_regions, where, rw, &dp, fn, context);
-}
-
-int dm_io_async_bvec(unsigned int num_regions, struct io_region *where, int rw,
- struct bio_vec *bvec, io_notify_fn fn, void *context)
-{
- struct dpages dp;
- bvec_dp_init(&dp, bvec);
- return async_io(num_regions, where, rw, &dp, fn, context);
-}
-
-int dm_io_async_vm(unsigned int num_regions, struct io_region *where, int rw,
- void *data, io_notify_fn fn, void *context)
-{
- struct dpages dp;
- vm_dp_init(&dp, data);
- return async_io(num_regions, where, rw, &dp, fn, context);
-}
-
-EXPORT_SYMBOL(dm_io_get);
-EXPORT_SYMBOL(dm_io_put);
-EXPORT_SYMBOL(dm_io_sync);
-EXPORT_SYMBOL(dm_io_async);
-EXPORT_SYMBOL(dm_io_sync_bvec);
-EXPORT_SYMBOL(dm_io_async_bvec);
-EXPORT_SYMBOL(dm_io_sync_vm);
-EXPORT_SYMBOL(dm_io_async_vm);
+++ /dev/null
-/*
- * Copyright (C) 2003 Sistina Software
- *
- * This file is released under the GPL.
- */
-
-#ifndef _DM_IO_H
-#define _DM_IO_H
-
-#include "dm.h"
-
-/* FIXME make this configurable */
-#define DM_MAX_IO_REGIONS 8
-
-struct io_region {
- struct block_device *bdev;
- sector_t sector;
- sector_t count;
-};
-
-struct page_list {
- struct page_list *next;
- struct page *page;
-};
-
-
-/*
- * 'error' is a bitset, with each bit indicating whether an error
- * occurred doing io to the corresponding region.
- */
-typedef void (*io_notify_fn)(unsigned long error, void *context);
-
-
-/*
- * Before anyone uses the IO interface they should call
- * dm_io_get(), specifying roughly how many pages they are
- * expecting to perform io on concurrently.
- *
- * This function may block.
- */
-int dm_io_get(unsigned int num_pages);
-void dm_io_put(unsigned int num_pages);
-
-/*
- * Synchronous IO.
- *
- * Please ensure that the rw flag in the next two functions is
- * either READ or WRITE, ie. we don't take READA. Any
- * regions with a zero count field will be ignored.
- */
-int dm_io_sync(unsigned int num_regions, struct io_region *where, int rw,
- struct page_list *pl, unsigned int offset,
- unsigned long *error_bits);
-
-int dm_io_sync_bvec(unsigned int num_regions, struct io_region *where, int rw,
- struct bio_vec *bvec, unsigned long *error_bits);
-
-int dm_io_sync_vm(unsigned int num_regions, struct io_region *where, int rw,
- void *data, unsigned long *error_bits);
-
-/*
- * Aynchronous IO.
- *
- * The 'where' array may be safely allocated on the stack since
- * the function takes a copy.
- */
-int dm_io_async(unsigned int num_regions, struct io_region *where, int rw,
- struct page_list *pl, unsigned int offset,
- io_notify_fn fn, void *context);
-
-int dm_io_async_bvec(unsigned int num_regions, struct io_region *where, int rw,
- struct bio_vec *bvec, io_notify_fn fn, void *context);
-
-int dm_io_async_vm(unsigned int num_regions, struct io_region *where, int rw,
- void *data, io_notify_fn fn, void *context);
-
-#endif
+++ /dev/null
-/*
- * Copyright (C) 2003 Sistina Software
- *
- * This file is released under the LGPL.
- */
-
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/vmalloc.h>
-
-#include "dm-log.h"
-#include "dm-io.h"
-
-static LIST_HEAD(_log_types);
-static spinlock_t _lock = SPIN_LOCK_UNLOCKED;
-
-int dm_register_dirty_log_type(struct dirty_log_type *type)
-{
- if (!try_module_get(type->module))
- return -EINVAL;
-
- spin_lock(&_lock);
- type->use_count = 0;
- list_add(&type->list, &_log_types);
- spin_unlock(&_lock);
-
- return 0;
-}
-
-int dm_unregister_dirty_log_type(struct dirty_log_type *type)
-{
- spin_lock(&_lock);
-
- if (type->use_count)
- DMWARN("Attempt to unregister a log type that is still in use");
- else {
- list_del(&type->list);
- module_put(type->module);
- }
-
- spin_unlock(&_lock);
-
- return 0;
-}
-
-static struct dirty_log_type *get_type(const char *type_name)
-{
- struct dirty_log_type *type;
-
- spin_lock(&_lock);
- list_for_each_entry (type, &_log_types, list)
- if (!strcmp(type_name, type->name)) {
- type->use_count++;
- spin_unlock(&_lock);
- return type;
- }
-
- spin_unlock(&_lock);
- return NULL;
-}
-
-static void put_type(struct dirty_log_type *type)
-{
- spin_lock(&_lock);
- type->use_count--;
- spin_unlock(&_lock);
-}
-
-struct dirty_log *dm_create_dirty_log(const char *type_name, struct dm_target *ti,
- unsigned int argc, char **argv)
-{
- struct dirty_log_type *type;
- struct dirty_log *log;
-
- log = kmalloc(sizeof(*log), GFP_KERNEL);
- if (!log)
- return NULL;
-
- type = get_type(type_name);
- if (!type) {
- kfree(log);
- return NULL;
- }
-
- log->type = type;
- if (type->ctr(log, ti, argc, argv)) {
- kfree(log);
- put_type(type);
- return NULL;
- }
-
- return log;
-}
-
-void dm_destroy_dirty_log(struct dirty_log *log)
-{
- log->type->dtr(log);
- put_type(log->type);
- kfree(log);
-}
-
-/*-----------------------------------------------------------------
- * Persistent and core logs share a lot of their implementation.
- * FIXME: need a reload method to be called from a resume
- *---------------------------------------------------------------*/
-/*
- * Magic for persistent mirrors: "MiRr"
- */
-#define MIRROR_MAGIC 0x4D695272
-
-/*
- * The on-disk version of the metadata.
- */
-#define MIRROR_DISK_VERSION 1
-#define LOG_OFFSET 2
-
-struct log_header {
- uint32_t magic;
-
- /*
- * Simple, incrementing version. no backward
- * compatibility.
- */
- uint32_t version;
- sector_t nr_regions;
-};
-
-struct log_c {
- struct dm_target *ti;
- int touched;
- sector_t region_size;
- unsigned int region_count;
- region_t sync_count;
-
- unsigned bitset_uint32_count;
- uint32_t *clean_bits;
- uint32_t *sync_bits;
- uint32_t *recovering_bits; /* FIXME: this seems excessive */
-
- int sync_search;
-
- /*
- * Disk log fields
- */
- struct dm_dev *log_dev;
- struct log_header header;
-
- struct io_region header_location;
- struct log_header *disk_header;
-
- struct io_region bits_location;
- uint32_t *disk_bits;
-};
-
-/*
- * The touched member needs to be updated every time we access
- * one of the bitsets.
- */
-static inline int log_test_bit(uint32_t *bs, unsigned bit)
-{
- return test_bit(bit, (unsigned long *) bs) ? 1 : 0;
-}
-
-static inline void log_set_bit(struct log_c *l,
- uint32_t *bs, unsigned bit)
-{
- set_bit(bit, (unsigned long *) bs);
- l->touched = 1;
-}
-
-static inline void log_clear_bit(struct log_c *l,
- uint32_t *bs, unsigned bit)
-{
- clear_bit(bit, (unsigned long *) bs);
- l->touched = 1;
-}
-
-/*----------------------------------------------------------------
- * Header IO
- *--------------------------------------------------------------*/
-static void header_to_disk(struct log_header *core, struct log_header *disk)
-{
- disk->magic = cpu_to_le32(core->magic);
- disk->version = cpu_to_le32(core->version);
- disk->nr_regions = cpu_to_le64(core->nr_regions);
-}
-
-static void header_from_disk(struct log_header *core, struct log_header *disk)
-{
- core->magic = le32_to_cpu(disk->magic);
- core->version = le32_to_cpu(disk->version);
- core->nr_regions = le64_to_cpu(disk->nr_regions);
-}
-
-static int read_header(struct log_c *log)
-{
- int r;
- unsigned long ebits;
-
- r = dm_io_sync_vm(1, &log->header_location, READ,
- log->disk_header, &ebits);
- if (r)
- return r;
-
- header_from_disk(&log->header, log->disk_header);
-
- if (log->header.magic != MIRROR_MAGIC) {
- log->header.magic = MIRROR_MAGIC;
- log->header.version = MIRROR_DISK_VERSION;
- log->header.nr_regions = 0;
- }
-
- if (log->header.version != MIRROR_DISK_VERSION) {
- DMWARN("incompatible disk log version");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static inline int write_header(struct log_c *log)
-{
- unsigned long ebits;
-
- header_to_disk(&log->header, log->disk_header);
- return dm_io_sync_vm(1, &log->header_location, WRITE,
- log->disk_header, &ebits);
-}
-
-/*----------------------------------------------------------------
- * Bits IO
- *--------------------------------------------------------------*/
-static inline void bits_to_core(uint32_t *core, uint32_t *disk, unsigned count)
-{
- unsigned i;
-
- for (i = 0; i < count; i++)
- core[i] = le32_to_cpu(disk[i]);
-}
-
-static inline void bits_to_disk(uint32_t *core, uint32_t *disk, unsigned count)
-{
- unsigned i;
-
- /* copy across the clean/dirty bitset */
- for (i = 0; i < count; i++)
- disk[i] = cpu_to_le32(core[i]);
-}
-
-static int read_bits(struct log_c *log)
-{
- int r;
- unsigned long ebits;
-
- r = dm_io_sync_vm(1, &log->bits_location, READ,
- log->disk_bits, &ebits);
- if (r)
- return r;
-
- bits_to_core(log->clean_bits, log->disk_bits,
- log->bitset_uint32_count);
- return 0;
-}
-
-static int write_bits(struct log_c *log)
-{
- unsigned long ebits;
- bits_to_disk(log->clean_bits, log->disk_bits,
- log->bitset_uint32_count);
- return dm_io_sync_vm(1, &log->bits_location, WRITE,
- log->disk_bits, &ebits);
-}
-
-/*----------------------------------------------------------------
- * constructor/destructor
- *--------------------------------------------------------------*/
-#define BYTE_SHIFT 3
-static int core_ctr(struct dirty_log *log, struct dm_target *ti,
- unsigned int argc, char **argv)
-{
- struct log_c *lc;
- sector_t region_size;
- unsigned int region_count;
- size_t bitset_size;
-
- if (argc != 1) {
- DMWARN("wrong number of arguments to log_c");
- return -EINVAL;
- }
-
- if (sscanf(argv[0], SECTOR_FORMAT, ®ion_size) != 1) {
- DMWARN("invalid region size string");
- return -EINVAL;
- }
-
- region_count = dm_div_up(ti->len, region_size);
-
- lc = kmalloc(sizeof(*lc), GFP_KERNEL);
- if (!lc) {
- DMWARN("couldn't allocate core log");
- return -ENOMEM;
- }
-
- lc->ti = ti;
- lc->touched = 0;
- lc->region_size = region_size;
- lc->region_count = region_count;
-
- /*
- * Work out how many words we need to hold the bitset.
- */
- bitset_size = dm_round_up(region_count,
- sizeof(*lc->clean_bits) << BYTE_SHIFT);
- bitset_size >>= BYTE_SHIFT;
-
- lc->bitset_uint32_count = bitset_size / 4;
- lc->clean_bits = vmalloc(bitset_size);
- if (!lc->clean_bits) {
- DMWARN("couldn't allocate clean bitset");
- kfree(lc);
- return -ENOMEM;
- }
- memset(lc->clean_bits, -1, bitset_size);
-
- lc->sync_bits = vmalloc(bitset_size);
- if (!lc->sync_bits) {
- DMWARN("couldn't allocate sync bitset");
- vfree(lc->clean_bits);
- kfree(lc);
- return -ENOMEM;
- }
- memset(lc->sync_bits, 0, bitset_size);
- lc->sync_count = 0;
-
- lc->recovering_bits = vmalloc(bitset_size);
- if (!lc->recovering_bits) {
- DMWARN("couldn't allocate sync bitset");
- vfree(lc->sync_bits);
- vfree(lc->clean_bits);
- kfree(lc);
- return -ENOMEM;
- }
- memset(lc->recovering_bits, 0, bitset_size);
- lc->sync_search = 0;
- log->context = lc;
- return 0;
-}
-
-static void core_dtr(struct dirty_log *log)
-{
- struct log_c *lc = (struct log_c *) log->context;
- vfree(lc->clean_bits);
- vfree(lc->sync_bits);
- vfree(lc->recovering_bits);
- kfree(lc);
-}
-
-static int disk_ctr(struct dirty_log *log, struct dm_target *ti,
- unsigned int argc, char **argv)
-{
- int r;
- size_t size;
- struct log_c *lc;
- struct dm_dev *dev;
-
- if (argc != 2) {
- DMWARN("wrong number of arguments to log_d");
- return -EINVAL;
- }
-
- r = dm_get_device(ti, argv[0], 0, 0 /* FIXME */,
- FMODE_READ | FMODE_WRITE, &dev);
- if (r)
- return r;
-
- r = core_ctr(log, ti, argc - 1, argv + 1);
- if (r) {
- dm_put_device(ti, dev);
- return r;
- }
-
- lc = (struct log_c *) log->context;
- lc->log_dev = dev;
-
- /* setup the disk header fields */
- lc->header_location.bdev = lc->log_dev->bdev;
- lc->header_location.sector = 0;
- lc->header_location.count = 1;
-
- /*
- * We can't read less than this amount, even though we'll
- * not be using most of this space.
- */
- lc->disk_header = vmalloc(1 << SECTOR_SHIFT);
- if (!lc->disk_header)
- goto bad;
-
- /* setup the disk bitset fields */
- lc->bits_location.bdev = lc->log_dev->bdev;
- lc->bits_location.sector = LOG_OFFSET;
-
- size = dm_round_up(lc->bitset_uint32_count * sizeof(uint32_t),
- 1 << SECTOR_SHIFT);
- lc->bits_location.count = size >> SECTOR_SHIFT;
- lc->disk_bits = vmalloc(size);
- if (!lc->disk_bits) {
- vfree(lc->disk_header);
- goto bad;
- }
- return 0;
-
- bad:
- dm_put_device(ti, lc->log_dev);
- core_dtr(log);
- return -ENOMEM;
-}
-
-static void disk_dtr(struct dirty_log *log)
-{
- struct log_c *lc = (struct log_c *) log->context;
- dm_put_device(lc->ti, lc->log_dev);
- vfree(lc->disk_header);
- vfree(lc->disk_bits);
- core_dtr(log);
-}
-
-static int count_bits32(uint32_t *addr, unsigned size)
-{
- int count = 0, i;
-
- for (i = 0; i < size; i++) {
- count += hweight32(*(addr+i));
- }
- return count;
-}
-
-static int disk_resume(struct dirty_log *log)
-{
- int r;
- unsigned i;
- struct log_c *lc = (struct log_c *) log->context;
- size_t size = lc->bitset_uint32_count * sizeof(uint32_t);
-
- /* read the disk header */
- r = read_header(lc);
- if (r)
- return r;
-
- /* read the bits */
- r = read_bits(lc);
- if (r)
- return r;
-
- /* zero any new bits if the mirror has grown */
- for (i = lc->header.nr_regions; i < lc->region_count; i++)
- /* FIXME: amazingly inefficient */
- log_clear_bit(lc, lc->clean_bits, i);
-
- /* copy clean across to sync */
- memcpy(lc->sync_bits, lc->clean_bits, size);
- lc->sync_count = count_bits32(lc->clean_bits, lc->bitset_uint32_count);
-
- /* write the bits */
- r = write_bits(lc);
- if (r)
- return r;
-
- /* set the correct number of regions in the header */
- lc->header.nr_regions = lc->region_count;
-
- /* write the new header */
- return write_header(lc);
-}
-
-static sector_t core_get_region_size(struct dirty_log *log)
-{
- struct log_c *lc = (struct log_c *) log->context;
- return lc->region_size;
-}
-
-static int core_is_clean(struct dirty_log *log, region_t region)
-{
- struct log_c *lc = (struct log_c *) log->context;
- return log_test_bit(lc->clean_bits, region);
-}
-
-static int core_in_sync(struct dirty_log *log, region_t region, int block)
-{
- struct log_c *lc = (struct log_c *) log->context;
- return log_test_bit(lc->sync_bits, region);
-}
-
-static int core_flush(struct dirty_log *log)
-{
- /* no op */
- return 0;
-}
-
-static int disk_flush(struct dirty_log *log)
-{
- int r;
- struct log_c *lc = (struct log_c *) log->context;
-
- /* only write if the log has changed */
- if (!lc->touched)
- return 0;
-
- r = write_bits(lc);
- if (!r)
- lc->touched = 0;
-
- return r;
-}
-
-static void core_mark_region(struct dirty_log *log, region_t region)
-{
- struct log_c *lc = (struct log_c *) log->context;
- log_clear_bit(lc, lc->clean_bits, region);
-}
-
-static void core_clear_region(struct dirty_log *log, region_t region)
-{
- struct log_c *lc = (struct log_c *) log->context;
- log_set_bit(lc, lc->clean_bits, region);
-}
-
-static int core_get_resync_work(struct dirty_log *log, region_t *region)
-{
- struct log_c *lc = (struct log_c *) log->context;
-
- if (lc->sync_search >= lc->region_count)
- return 0;
-
- do {
- *region = find_next_zero_bit((unsigned long *) lc->sync_bits,
- lc->region_count,
- lc->sync_search);
- lc->sync_search = *region + 1;
-
- if (*region == lc->region_count)
- return 0;
-
- } while (log_test_bit(lc->recovering_bits, *region));
-
- log_set_bit(lc, lc->recovering_bits, *region);
- return 1;
-}
-
-static void core_complete_resync_work(struct dirty_log *log, region_t region,
- int success)
-{
- struct log_c *lc = (struct log_c *) log->context;
-
- log_clear_bit(lc, lc->recovering_bits, region);
- if (success) {
- log_set_bit(lc, lc->sync_bits, region);
- lc->sync_count++;
- }
-}
-
-static region_t core_get_sync_count(struct dirty_log *log)
-{
- struct log_c *lc = (struct log_c *) log->context;
-
- return lc->sync_count;
-}
-
-static struct dirty_log_type _core_type = {
- .name = "core",
- .module = THIS_MODULE,
- .ctr = core_ctr,
- .dtr = core_dtr,
- .get_region_size = core_get_region_size,
- .is_clean = core_is_clean,
- .in_sync = core_in_sync,
- .flush = core_flush,
- .mark_region = core_mark_region,
- .clear_region = core_clear_region,
- .get_resync_work = core_get_resync_work,
- .complete_resync_work = core_complete_resync_work,
- .get_sync_count = core_get_sync_count
-};
-
-static struct dirty_log_type _disk_type = {
- .name = "disk",
- .module = THIS_MODULE,
- .ctr = disk_ctr,
- .dtr = disk_dtr,
- .suspend = disk_flush,
- .resume = disk_resume,
- .get_region_size = core_get_region_size,
- .is_clean = core_is_clean,
- .in_sync = core_in_sync,
- .flush = disk_flush,
- .mark_region = core_mark_region,
- .clear_region = core_clear_region,
- .get_resync_work = core_get_resync_work,
- .complete_resync_work = core_complete_resync_work,
- .get_sync_count = core_get_sync_count
-};
-
-int __init dm_dirty_log_init(void)
-{
- int r;
-
- r = dm_register_dirty_log_type(&_core_type);
- if (r)
- DMWARN("couldn't register core log");
-
- r = dm_register_dirty_log_type(&_disk_type);
- if (r) {
- DMWARN("couldn't register disk type");
- dm_unregister_dirty_log_type(&_core_type);
- }
-
- return r;
-}
-
-void dm_dirty_log_exit(void)
-{
- dm_unregister_dirty_log_type(&_disk_type);
- dm_unregister_dirty_log_type(&_core_type);
-}
-
-EXPORT_SYMBOL(dm_register_dirty_log_type);
-EXPORT_SYMBOL(dm_unregister_dirty_log_type);
-EXPORT_SYMBOL(dm_create_dirty_log);
-EXPORT_SYMBOL(dm_destroy_dirty_log);
+++ /dev/null
-/*
- * Copyright (C) 2003 Sistina Software
- *
- * This file is released under the LGPL.
- */
-
-#ifndef DM_DIRTY_LOG
-#define DM_DIRTY_LOG
-
-#include "dm.h"
-
-typedef sector_t region_t;
-
-struct dirty_log_type;
-
-struct dirty_log {
- struct dirty_log_type *type;
- void *context;
-};
-
-struct dirty_log_type {
- struct list_head list;
- const char *name;
- struct module *module;
- unsigned int use_count;
-
- int (*ctr)(struct dirty_log *log, struct dm_target *ti,
- unsigned int argc, char **argv);
- void (*dtr)(struct dirty_log *log);
-
- /*
- * There are times when we don't want the log to touch
- * the disk.
- */
- int (*suspend)(struct dirty_log *log);
- int (*resume)(struct dirty_log *log);
-
- /*
- * Retrieves the smallest size of region that the log can
- * deal with.
- */
- sector_t (*get_region_size)(struct dirty_log *log);
-
- /*
- * A predicate to say whether a region is clean or not.
- * May block.
- */
- int (*is_clean)(struct dirty_log *log, region_t region);
-
- /*
- * Returns: 0, 1, -EWOULDBLOCK, < 0
- *
- * A predicate function to check the area given by
- * [sector, sector + len) is in sync.
- *
- * If -EWOULDBLOCK is returned the state of the region is
- * unknown, typically this will result in a read being
- * passed to a daemon to deal with, since a daemon is
- * allowed to block.
- */
- int (*in_sync)(struct dirty_log *log, region_t region, int can_block);
-
- /*
- * Flush the current log state (eg, to disk). This
- * function may block.
- */
- int (*flush)(struct dirty_log *log);
-
- /*
- * Mark an area as clean or dirty. These functions may
- * block, though for performance reasons blocking should
- * be extremely rare (eg, allocating another chunk of
- * memory for some reason).
- */
- void (*mark_region)(struct dirty_log *log, region_t region);
- void (*clear_region)(struct dirty_log *log, region_t region);
-
- /*
- * Returns: <0 (error), 0 (no region), 1 (region)
- *
- * The mirrord will need perform recovery on regions of
- * the mirror that are in the NOSYNC state. This
- * function asks the log to tell the caller about the
- * next region that this machine should recover.
- *
- * Do not confuse this function with 'in_sync()', one
- * tells you if an area is synchronised, the other
- * assigns recovery work.
- */
- int (*get_resync_work)(struct dirty_log *log, region_t *region);
-
- /*
- * This notifies the log that the resync of an area has
- * been completed. The log should then mark this region
- * as CLEAN.
- */
- void (*complete_resync_work)(struct dirty_log *log,
- region_t region, int success);
-
- /*
- * Returns the number of regions that are in sync.
- */
- region_t (*get_sync_count)(struct dirty_log *log);
-};
-
-int dm_register_dirty_log_type(struct dirty_log_type *type);
-int dm_unregister_dirty_log_type(struct dirty_log_type *type);
-
-
-/*
- * Make sure you use these two functions, rather than calling
- * type->constructor/destructor() directly.
- */
-struct dirty_log *dm_create_dirty_log(const char *type_name, struct dm_target *ti,
- unsigned int argc, char **argv);
-void dm_destroy_dirty_log(struct dirty_log *log);
-
-/*
- * init/exit functions.
- */
-int dm_dirty_log_init(void);
-void dm_dirty_log_exit(void);
-
-#endif
+++ /dev/null
-/*
- * Copyright (C) 2003 Sistina Software Limited.
- *
- * This file is released under the GPL.
- */
-
-#include "dm.h"
-#include "dm-bio-list.h"
-#include "dm-io.h"
-#include "dm-log.h"
-#include "kcopyd.h"
-
-#include <linux/ctype.h>
-#include <linux/init.h>
-#include <linux/mempool.h>
-#include <linux/module.h>
-#include <linux/pagemap.h>
-#include <linux/slab.h>
-#include <linux/time.h>
-#include <linux/vmalloc.h>
-#include <linux/workqueue.h>
-
-static struct workqueue_struct *_kmirrord_wq;
-static struct work_struct _kmirrord_work;
-
-static inline void wake(void)
-{
- queue_work(_kmirrord_wq, &_kmirrord_work);
-}
-
-/*-----------------------------------------------------------------
- * Region hash
- *
- * The mirror splits itself up into discrete regions. Each
- * region can be in one of three states: clean, dirty,
- * nosync. There is no need to put clean regions in the hash.
- *
- * In addition to being present in the hash table a region _may_
- * be present on one of three lists.
- *
- * clean_regions: Regions on this list have no io pending to
- * them, they are in sync, we are no longer interested in them,
- * they are dull. rh_update_states() will remove them from the
- * hash table.
- *
- * quiesced_regions: These regions have been spun down, ready
- * for recovery. rh_recovery_start() will remove regions from
- * this list and hand them to kmirrord, which will schedule the
- * recovery io with kcopyd.
- *
- * recovered_regions: Regions that kcopyd has successfully
- * recovered. rh_update_states() will now schedule any delayed
- * io, up the recovery_count, and remove the region from the
- * hash.
- *
- * There are 2 locks:
- * A rw spin lock 'hash_lock' protects just the hash table,
- * this is never held in write mode from interrupt context,
- * which I believe means that we only have to disable irqs when
- * doing a write lock.
- *
- * An ordinary spin lock 'region_lock' that protects the three
- * lists in the region_hash, with the 'state', 'list' and
- * 'bhs_delayed' fields of the regions. This is used from irq
- * context, so all other uses will have to suspend local irqs.
- *---------------------------------------------------------------*/
-struct mirror_set;
-struct region_hash {
- struct mirror_set *ms;
- sector_t region_size;
- unsigned region_shift;
-
- /* holds persistent region state */
- struct dirty_log *log;
-
- /* hash table */
- rwlock_t hash_lock;
- mempool_t *region_pool;
- unsigned int mask;
- unsigned int nr_buckets;
- struct list_head *buckets;
-
- spinlock_t region_lock;
- struct semaphore recovery_count;
- struct list_head clean_regions;
- struct list_head quiesced_regions;
- struct list_head recovered_regions;
-};
-
-enum {
- RH_CLEAN,
- RH_DIRTY,
- RH_NOSYNC,
- RH_RECOVERING
-};
-
-struct region {
- struct region_hash *rh; /* FIXME: can we get rid of this ? */
- region_t key;
- int state;
-
- struct list_head hash_list;
- struct list_head list;
-
- atomic_t pending;
- struct bio_list delayed_bios;
-};
-
-/*
- * Conversion fns
- */
-static inline region_t bio_to_region(struct region_hash *rh, struct bio *bio)
-{
- return bio->bi_sector >> rh->region_shift;
-}
-
-static inline sector_t region_to_sector(struct region_hash *rh, region_t region)
-{
- return region << rh->region_shift;
-}
-
-/* FIXME move this */
-static void queue_bio(struct mirror_set *ms, struct bio *bio, int rw);
-
-static void *region_alloc(int gfp_mask, void *pool_data)
-{
- return kmalloc(sizeof(struct region), gfp_mask);
-}
-
-static void region_free(void *element, void *pool_data)
-{
- kfree(element);
-}
-
-#define MIN_REGIONS 64
-#define MAX_RECOVERY 1
-static int rh_init(struct region_hash *rh, struct mirror_set *ms,
- struct dirty_log *log, sector_t region_size,
- region_t nr_regions)
-{
- unsigned int nr_buckets, max_buckets;
- size_t i;
-
- /*
- * Calculate a suitable number of buckets for our hash
- * table.
- */
- max_buckets = nr_regions >> 6;
- for (nr_buckets = 128u; nr_buckets < max_buckets; nr_buckets <<= 1)
- ;
- nr_buckets >>= 1;
-
- rh->ms = ms;
- rh->log = log;
- rh->region_size = region_size;
- rh->region_shift = ffs(region_size) - 1;
- rwlock_init(&rh->hash_lock);
- rh->mask = nr_buckets - 1;
- rh->nr_buckets = nr_buckets;
-
- rh->buckets = vmalloc(nr_buckets * sizeof(*rh->buckets));
- if (!rh->buckets) {
- DMERR("unable to allocate region hash memory");
- return -ENOMEM;
- }
-
- for (i = 0; i < nr_buckets; i++)
- INIT_LIST_HEAD(rh->buckets + i);
-
- spin_lock_init(&rh->region_lock);
- sema_init(&rh->recovery_count, 0);
- INIT_LIST_HEAD(&rh->clean_regions);
- INIT_LIST_HEAD(&rh->quiesced_regions);
- INIT_LIST_HEAD(&rh->recovered_regions);
-
- rh->region_pool = mempool_create(MIN_REGIONS, region_alloc,
- region_free, NULL);
- if (!rh->region_pool) {
- vfree(rh->buckets);
- rh->buckets = NULL;
- return -ENOMEM;
- }
-
- return 0;
-}
-
-static void rh_exit(struct region_hash *rh)
-{
- unsigned int h;
- struct region *reg, *nreg;
-
- BUG_ON(!list_empty(&rh->quiesced_regions));
- for (h = 0; h < rh->nr_buckets; h++) {
- list_for_each_entry_safe(reg, nreg, rh->buckets + h, hash_list) {
- BUG_ON(atomic_read(®->pending));
- mempool_free(reg, rh->region_pool);
- }
- }
-
- if (rh->log)
- dm_destroy_dirty_log(rh->log);
- if (rh->region_pool)
- mempool_destroy(rh->region_pool);
- vfree(rh->buckets);
-}
-
-#define RH_HASH_MULT 2654435387U
-
-static inline unsigned int rh_hash(struct region_hash *rh, region_t region)
-{
- return (unsigned int) ((region * RH_HASH_MULT) >> 12) & rh->mask;
-}
-
-static struct region *__rh_lookup(struct region_hash *rh, region_t region)
-{
- struct region *reg;
-
- list_for_each_entry (reg, rh->buckets + rh_hash(rh, region), hash_list)
- if (reg->key == region)
- return reg;
-
- return NULL;
-}
-
-static void __rh_insert(struct region_hash *rh, struct region *reg)
-{
- unsigned int h = rh_hash(rh, reg->key);
- list_add(®->hash_list, rh->buckets + h);
-}
-
-static struct region *__rh_alloc(struct region_hash *rh, region_t region)
-{
- struct region *reg, *nreg;
-
- read_unlock(&rh->hash_lock);
- nreg = mempool_alloc(rh->region_pool, GFP_NOIO);
- nreg->state = rh->log->type->in_sync(rh->log, region, 1) ?
- RH_CLEAN : RH_NOSYNC;
- nreg->rh = rh;
- nreg->key = region;
-
- INIT_LIST_HEAD(&nreg->list);
-
- atomic_set(&nreg->pending, 0);
- bio_list_init(&nreg->delayed_bios);
- write_lock_irq(&rh->hash_lock);
-
- reg = __rh_lookup(rh, region);
- if (reg)
- /* we lost the race */
- mempool_free(nreg, rh->region_pool);
-
- else {
- __rh_insert(rh, nreg);
- if (nreg->state == RH_CLEAN) {
- spin_lock_irq(&rh->region_lock);
- list_add(&nreg->list, &rh->clean_regions);
- spin_unlock_irq(&rh->region_lock);
- }
- reg = nreg;
- }
- write_unlock_irq(&rh->hash_lock);
- read_lock(&rh->hash_lock);
-
- return reg;
-}
-
-static inline struct region *__rh_find(struct region_hash *rh, region_t region)
-{
- struct region *reg;
-
- reg = __rh_lookup(rh, region);
- if (!reg)
- reg = __rh_alloc(rh, region);
-
- return reg;
-}
-
-static int rh_state(struct region_hash *rh, region_t region, int may_block)
-{
- int r;
- struct region *reg;
-
- read_lock(&rh->hash_lock);
- reg = __rh_lookup(rh, region);
- read_unlock(&rh->hash_lock);
-
- if (reg)
- return reg->state;
-
- /*
- * The region wasn't in the hash, so we fall back to the
- * dirty log.
- */
- r = rh->log->type->in_sync(rh->log, region, may_block);
-
- /*
- * Any error from the dirty log (eg. -EWOULDBLOCK) gets
- * taken as a RH_NOSYNC
- */
- return r == 1 ? RH_CLEAN : RH_NOSYNC;
-}
-
-static inline int rh_in_sync(struct region_hash *rh,
- region_t region, int may_block)
-{
- int state = rh_state(rh, region, may_block);
- return state == RH_CLEAN || state == RH_DIRTY;
-}
-
-static void dispatch_bios(struct mirror_set *ms, struct bio_list *bio_list)
-{
- struct bio *bio;
-
- while ((bio = bio_list_pop(bio_list))) {
- queue_bio(ms, bio, WRITE);
- }
-}
-
-static void rh_update_states(struct region_hash *rh)
-{
- struct region *reg, *next;
-
- LIST_HEAD(clean);
- LIST_HEAD(recovered);
-
- /*
- * Quickly grab the lists.
- */
- write_lock_irq(&rh->hash_lock);
- spin_lock(&rh->region_lock);
- if (!list_empty(&rh->clean_regions)) {
- list_splice(&rh->clean_regions, &clean);
- INIT_LIST_HEAD(&rh->clean_regions);
-
- list_for_each_entry (reg, &clean, list) {
- rh->log->type->clear_region(rh->log, reg->key);
- list_del(®->hash_list);
- }
- }
-
- if (!list_empty(&rh->recovered_regions)) {
- list_splice(&rh->recovered_regions, &recovered);
- INIT_LIST_HEAD(&rh->recovered_regions);
-
- list_for_each_entry (reg, &recovered, list)
- list_del(®->hash_list);
- }
- spin_unlock(&rh->region_lock);
- write_unlock_irq(&rh->hash_lock);
-
- /*
- * All the regions on the recovered and clean lists have
- * now been pulled out of the system, so no need to do
- * any more locking.
- */
- list_for_each_entry_safe (reg, next, &recovered, list) {
- rh->log->type->clear_region(rh->log, reg->key);
- rh->log->type->complete_resync_work(rh->log, reg->key, 1);
- dispatch_bios(rh->ms, ®->delayed_bios);
- up(&rh->recovery_count);
- mempool_free(reg, rh->region_pool);
- }
-
- if (!list_empty(&recovered))
- rh->log->type->flush(rh->log);
-
- list_for_each_entry_safe (reg, next, &clean, list)
- mempool_free(reg, rh->region_pool);
-}
-
-static void rh_inc(struct region_hash *rh, region_t region)
-{
- struct region *reg;
-
- read_lock(&rh->hash_lock);
- reg = __rh_find(rh, region);
- if (reg->state == RH_CLEAN) {
- rh->log->type->mark_region(rh->log, reg->key);
-
- spin_lock_irq(&rh->region_lock);
- reg->state = RH_DIRTY;
- list_del_init(®->list); /* take off the clean list */
- spin_unlock_irq(&rh->region_lock);
- }
-
- atomic_inc(®->pending);
- read_unlock(&rh->hash_lock);
-}
-
-static void rh_inc_pending(struct region_hash *rh, struct bio_list *bios)
-{
- struct bio *bio;
-
- for (bio = bios->head; bio; bio = bio->bi_next)
- rh_inc(rh, bio_to_region(rh, bio));
-}
-
-static void rh_dec(struct region_hash *rh, region_t region)
-{
- unsigned long flags;
- struct region *reg;
- int should_wake = 0;
-
- read_lock(&rh->hash_lock);
- reg = __rh_lookup(rh, region);
- read_unlock(&rh->hash_lock);
-
- if (atomic_dec_and_test(®->pending)) {
- spin_lock_irqsave(&rh->region_lock, flags);
- if (reg->state == RH_RECOVERING) {
- list_add_tail(®->list, &rh->quiesced_regions);
- } else {
- reg->state = RH_CLEAN;
- list_add(®->list, &rh->clean_regions);
- }
- spin_unlock_irqrestore(&rh->region_lock, flags);
- should_wake = 1;
- }
-
- if (should_wake)
- wake();
-}
-
-/*
- * Starts quiescing a region in preparation for recovery.
- */
-static int __rh_recovery_prepare(struct region_hash *rh)
-{
- int r;
- struct region *reg;
- region_t region;
-
- /*
- * Ask the dirty log what's next.
- */
- r = rh->log->type->get_resync_work(rh->log, ®ion);
- if (r <= 0)
- return r;
-
- /*
- * Get this region, and start it quiescing by setting the
- * recovering flag.
- */
- read_lock(&rh->hash_lock);
- reg = __rh_find(rh, region);
- read_unlock(&rh->hash_lock);
-
- spin_lock_irq(&rh->region_lock);
- reg->state = RH_RECOVERING;
-
- /* Already quiesced ? */
- if (atomic_read(®->pending))
- list_del_init(®->list);
-
- else {
- list_del_init(®->list);
- list_add(®->list, &rh->quiesced_regions);
- }
- spin_unlock_irq(&rh->region_lock);
-
- return 1;
-}
-
-static void rh_recovery_prepare(struct region_hash *rh)
-{
- while (!down_trylock(&rh->recovery_count))
- if (__rh_recovery_prepare(rh) <= 0) {
- up(&rh->recovery_count);
- break;
- }
-}
-
-/*
- * Returns any quiesced regions.
- */
-static struct region *rh_recovery_start(struct region_hash *rh)
-{
- struct region *reg = NULL;
-
- spin_lock_irq(&rh->region_lock);
- if (!list_empty(&rh->quiesced_regions)) {
- reg = list_entry(rh->quiesced_regions.next,
- struct region, list);
- list_del_init(®->list); /* remove from the quiesced list */
- }
- spin_unlock_irq(&rh->region_lock);
-
- return reg;
-}
-
-/* FIXME: success ignored for now */
-static void rh_recovery_end(struct region *reg, int success)
-{
- struct region_hash *rh = reg->rh;
-
- spin_lock_irq(&rh->region_lock);
- list_add(®->list, ®->rh->recovered_regions);
- spin_unlock_irq(&rh->region_lock);
-
- wake();
-}
-
-static void rh_flush(struct region_hash *rh)
-{
- rh->log->type->flush(rh->log);
-}
-
-static void rh_delay(struct region_hash *rh, struct bio *bio)
-{
- struct region *reg;
-
- read_lock(&rh->hash_lock);
- reg = __rh_find(rh, bio_to_region(rh, bio));
- bio_list_add(®->delayed_bios, bio);
- read_unlock(&rh->hash_lock);
-}
-
-static void rh_stop_recovery(struct region_hash *rh)
-{
- int i;
-
- /* wait for any recovering regions */
- for (i = 0; i < MAX_RECOVERY; i++)
- down(&rh->recovery_count);
-}
-
-static void rh_start_recovery(struct region_hash *rh)
-{
- int i;
-
- for (i = 0; i < MAX_RECOVERY; i++)
- up(&rh->recovery_count);
-
- wake();
-}
-
-/*-----------------------------------------------------------------
- * Mirror set structures.
- *---------------------------------------------------------------*/
-struct mirror {
- atomic_t error_count;
- struct dm_dev *dev;
- sector_t offset;
-};
-
-struct mirror_set {
- struct dm_target *ti;
- struct list_head list;
- struct region_hash rh;
- struct kcopyd_client *kcopyd_client;
-
- spinlock_t lock; /* protects the next two lists */
- struct bio_list reads;
- struct bio_list writes;
-
- /* recovery */
- region_t nr_regions;
- int in_sync;
-
- unsigned int nr_mirrors;
- struct mirror mirror[0];
-};
-
-/*
- * Every mirror should look like this one.
- */
-#define DEFAULT_MIRROR 0
-
-/*
- * This is yucky. We squirrel the mirror_set struct away inside
- * bi_next for write buffers. This is safe since the bh
- * doesn't get submitted to the lower levels of block layer.
- */
-static struct mirror_set *bio_get_ms(struct bio *bio)
-{
- return (struct mirror_set *) bio->bi_next;
-}
-
-static void bio_set_ms(struct bio *bio, struct mirror_set *ms)
-{
- bio->bi_next = (struct bio *) ms;
-}
-
-/*-----------------------------------------------------------------
- * Recovery.
- *
- * When a mirror is first activated we may find that some regions
- * are in the no-sync state. We have to recover these by
- * recopying from the default mirror to all the others.
- *---------------------------------------------------------------*/
-static void recovery_complete(int read_err, unsigned int write_err,
- void *context)
-{
- struct region *reg = (struct region *) context;
-
- /* FIXME: better error handling */
- rh_recovery_end(reg, read_err || write_err);
-}
-
-static int recover(struct mirror_set *ms, struct region *reg)
-{
- int r;
- unsigned int i;
- struct io_region from, to[ms->nr_mirrors - 1], *dest;
- struct mirror *m;
- unsigned long flags = 0;
-
- /* fill in the source */
- m = ms->mirror + DEFAULT_MIRROR;
- from.bdev = m->dev->bdev;
- from.sector = m->offset + region_to_sector(reg->rh, reg->key);
- if (reg->key == (ms->nr_regions - 1)) {
- /*
- * The final region may be smaller than
- * region_size.
- */
- from.count = ms->ti->len & (reg->rh->region_size - 1);
- if (!from.count)
- from.count = reg->rh->region_size;
- } else
- from.count = reg->rh->region_size;
-
- /* fill in the destinations */
- for (i = 0, dest = to; i < ms->nr_mirrors; i++) {
- if (i == DEFAULT_MIRROR)
- continue;
-
- m = ms->mirror + i;
- dest->bdev = m->dev->bdev;
- dest->sector = m->offset + region_to_sector(reg->rh, reg->key);
- dest->count = from.count;
- dest++;
- }
-
- /* hand to kcopyd */
- set_bit(KCOPYD_IGNORE_ERROR, &flags);
- r = kcopyd_copy(ms->kcopyd_client, &from, ms->nr_mirrors - 1, to, flags,
- recovery_complete, reg);
-
- return r;
-}
-
-static void do_recovery(struct mirror_set *ms)
-{
- int r;
- struct region *reg;
- struct dirty_log *log = ms->rh.log;
-
- /*
- * Start quiescing some regions.
- */
- rh_recovery_prepare(&ms->rh);
-
- /*
- * Copy any already quiesced regions.
- */
- while ((reg = rh_recovery_start(&ms->rh))) {
- r = recover(ms, reg);
- if (r)
- rh_recovery_end(reg, 0);
- }
-
- /*
- * Update the in sync flag.
- */
- if (!ms->in_sync &&
- (log->type->get_sync_count(log) == ms->nr_regions)) {
- /* the sync is complete */
- dm_table_event(ms->ti->table);
- ms->in_sync = 1;
- }
-}
-
-/*-----------------------------------------------------------------
- * Reads
- *---------------------------------------------------------------*/
-static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
-{
- /* FIXME: add read balancing */
- return ms->mirror + DEFAULT_MIRROR;
-}
-
-/*
- * remap a buffer to a particular mirror.
- */
-static void map_bio(struct mirror_set *ms, struct mirror *m, struct bio *bio)
-{
- bio->bi_bdev = m->dev->bdev;
- bio->bi_sector = m->offset + (bio->bi_sector - ms->ti->begin);
-}
-
-static void do_reads(struct mirror_set *ms, struct bio_list *reads)
-{
- region_t region;
- struct bio *bio;
- struct mirror *m;
-
- while ((bio = bio_list_pop(reads))) {
- region = bio_to_region(&ms->rh, bio);
-
- /*
- * We can only read balance if the region is in sync.
- */
- if (rh_in_sync(&ms->rh, region, 0))
- m = choose_mirror(ms, bio->bi_sector);
- else
- m = ms->mirror + DEFAULT_MIRROR;
-
- map_bio(ms, m, bio);
- generic_make_request(bio);
- }
-}
-
-/*-----------------------------------------------------------------
- * Writes.
- *
- * We do different things with the write io depending on the
- * state of the region that it's in:
- *
- * SYNC: increment pending, use kcopyd to write to *all* mirrors
- * RECOVERING: delay the io until recovery completes
- * NOSYNC: increment pending, just write to the default mirror
- *---------------------------------------------------------------*/
-static void write_callback(unsigned long error, void *context)
-{
- unsigned int i;
- int uptodate = 1;
- struct bio *bio = (struct bio *) context;
- struct mirror_set *ms;
-
- ms = bio_get_ms(bio);
- bio_set_ms(bio, NULL);
-
- /*
- * NOTE: We don't decrement the pending count here,
- * instead it is done by the targets endio function.
- * This way we handle both writes to SYNC and NOSYNC
- * regions with the same code.
- */
-
- if (error) {
- /*
- * only error the io if all mirrors failed.
- * FIXME: bogus
- */
- uptodate = 0;
- for (i = 0; i < ms->nr_mirrors; i++)
- if (!test_bit(i, &error)) {
- uptodate = 1;
- break;
- }
- }
- bio_endio(bio, bio->bi_size, 0);
-}
-
-static void do_write(struct mirror_set *ms, struct bio *bio)
-{
- unsigned int i;
- struct io_region io[ms->nr_mirrors];
- struct mirror *m;
-
- for (i = 0; i < ms->nr_mirrors; i++) {
- m = ms->mirror + i;
-
- io[i].bdev = m->dev->bdev;
- io[i].sector = m->offset + (bio->bi_sector - ms->ti->begin);
- io[i].count = bio->bi_size >> 9;
- }
-
- bio_set_ms(bio, ms);
- dm_io_async_bvec(ms->nr_mirrors, io, WRITE,
- bio->bi_io_vec + bio->bi_idx,
- write_callback, bio);
-}
-
-static void do_writes(struct mirror_set *ms, struct bio_list *writes)
-{
- int state;
- struct bio *bio;
- struct bio_list sync, nosync, recover, *this_list = NULL;
-
- if (!writes->head)
- return;
-
- /*
- * Classify each write.
- */
- bio_list_init(&sync);
- bio_list_init(&nosync);
- bio_list_init(&recover);
-
- while ((bio = bio_list_pop(writes))) {
- state = rh_state(&ms->rh, bio_to_region(&ms->rh, bio), 1);
- switch (state) {
- case RH_CLEAN:
- case RH_DIRTY:
- this_list = &sync;
- break;
-
- case RH_NOSYNC:
- this_list = &nosync;
- break;
-
- case RH_RECOVERING:
- this_list = &recover;
- break;
- }
-
- bio_list_add(this_list, bio);
- }
-
- /*
- * Increment the pending counts for any regions that will
- * be written to (writes to recover regions are going to
- * be delayed).
- */
- rh_inc_pending(&ms->rh, &sync);
- rh_inc_pending(&ms->rh, &nosync);
- rh_flush(&ms->rh);
-
- /*
- * Dispatch io.
- */
- while ((bio = bio_list_pop(&sync)))
- do_write(ms, bio);
-
- while ((bio = bio_list_pop(&recover)))
- rh_delay(&ms->rh, bio);
-
- while ((bio = bio_list_pop(&nosync))) {
- map_bio(ms, ms->mirror + DEFAULT_MIRROR, bio);
- generic_make_request(bio);
- }
-}
-
-/*-----------------------------------------------------------------
- * kmirrord
- *---------------------------------------------------------------*/
-static LIST_HEAD(_mirror_sets);
-static DECLARE_RWSEM(_mirror_sets_lock);
-
-static void do_mirror(struct mirror_set *ms)
-{
- struct bio_list reads, writes;
-
- spin_lock(&ms->lock);
- reads = ms->reads;
- writes = ms->writes;
- bio_list_init(&ms->reads);
- bio_list_init(&ms->writes);
- spin_unlock(&ms->lock);
-
- rh_update_states(&ms->rh);
- do_recovery(ms);
- do_reads(ms, &reads);
- do_writes(ms, &writes);
-}
-
-static void do_work(void *ignored)
-{
- struct mirror_set *ms;
-
- down_read(&_mirror_sets_lock);
- list_for_each_entry (ms, &_mirror_sets, list)
- do_mirror(ms);
- up_read(&_mirror_sets_lock);
-}
-
-/*-----------------------------------------------------------------
- * Target functions
- *---------------------------------------------------------------*/
-static struct mirror_set *alloc_context(unsigned int nr_mirrors,
- sector_t region_size,
- struct dm_target *ti,
- struct dirty_log *dl)
-{
- size_t len;
- struct mirror_set *ms = NULL;
-
- if (array_too_big(sizeof(*ms), sizeof(ms->mirror[0]), nr_mirrors))
- return NULL;
-
- len = sizeof(*ms) + (sizeof(ms->mirror[0]) * nr_mirrors);
-
- ms = kmalloc(len, GFP_KERNEL);
- if (!ms) {
- ti->error = "dm-mirror: Cannot allocate mirror context";
- return NULL;
- }
-
- memset(ms, 0, len);
- spin_lock_init(&ms->lock);
-
- ms->ti = ti;
- ms->nr_mirrors = nr_mirrors;
- ms->nr_regions = dm_div_up(ti->len, region_size);
- ms->in_sync = 0;
-
- if (rh_init(&ms->rh, ms, dl, region_size, ms->nr_regions)) {
- ti->error = "dm-mirror: Error creating dirty region hash";
- kfree(ms);
- return NULL;
- }
-
- return ms;
-}
-
-static void free_context(struct mirror_set *ms, struct dm_target *ti,
- unsigned int m)
-{
- while (m--)
- dm_put_device(ti, ms->mirror[m].dev);
-
- rh_exit(&ms->rh);
- kfree(ms);
-}
-
-static inline int _check_region_size(struct dm_target *ti, sector_t size)
-{
- return !(size % (PAGE_SIZE >> 9) || (size & (size - 1)) ||
- size > ti->len);
-}
-
-static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
- unsigned int mirror, char **argv)
-{
- sector_t offset;
-
- if (sscanf(argv[1], SECTOR_FORMAT, &offset) != 1) {
- ti->error = "dm-mirror: Invalid offset";
- return -EINVAL;
- }
-
- if (dm_get_device(ti, argv[0], offset, ti->len,
- dm_table_get_mode(ti->table),
- &ms->mirror[mirror].dev)) {
- ti->error = "dm-mirror: Device lookup failure";
- return -ENXIO;
- }
-
- ms->mirror[mirror].offset = offset;
-
- return 0;
-}
-
-static int add_mirror_set(struct mirror_set *ms)
-{
- down_write(&_mirror_sets_lock);
- list_add_tail(&ms->list, &_mirror_sets);
- up_write(&_mirror_sets_lock);
- wake();
-
- return 0;
-}
-
-static void del_mirror_set(struct mirror_set *ms)
-{
- down_write(&_mirror_sets_lock);
- list_del(&ms->list);
- up_write(&_mirror_sets_lock);
-}
-
-/*
- * Create dirty log: log_type #log_params <log_params>
- */
-static struct dirty_log *create_dirty_log(struct dm_target *ti,
- unsigned int argc, char **argv,
- unsigned int *args_used)
-{
- unsigned int param_count;
- struct dirty_log *dl;
-
- if (argc < 2) {
- ti->error = "dm-mirror: Insufficient mirror log arguments";
- return NULL;
- }
-
- if (sscanf(argv[1], "%u", ¶m_count) != 1) {
- ti->error = "dm-mirror: Invalid mirror log argument count";
- return NULL;
- }
-
- *args_used = 2 + param_count;
-
- if (argc < *args_used) {
- ti->error = "dm-mirror: Insufficient mirror log arguments";
- return NULL;
- }
-
- dl = dm_create_dirty_log(argv[0], ti, param_count, argv + 2);
- if (!dl) {
- ti->error = "dm-mirror: Error creating mirror dirty log";
- return NULL;
- }
-
- if (!_check_region_size(ti, dl->type->get_region_size(dl))) {
- ti->error = "dm-mirror: Invalid region size";
- dm_destroy_dirty_log(dl);
- return NULL;
- }
-
- return dl;
-}
-
-/*
- * Construct a mirror mapping:
- *
- * log_type #log_params <log_params>
- * #mirrors [mirror_path offset]{2,}
- *
- * For now, #log_params = 1, log_type = "core"
- *
- */
-#define DM_IO_PAGES 64
-static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
-{
- int r;
- unsigned int nr_mirrors, m, args_used;
- struct mirror_set *ms;
- struct dirty_log *dl;
-
- dl = create_dirty_log(ti, argc, argv, &args_used);
- if (!dl)
- return -EINVAL;
-
- argv += args_used;
- argc -= args_used;
-
- if (!argc || sscanf(argv[0], "%u", &nr_mirrors) != 1 ||
- nr_mirrors < 2) {
- ti->error = "dm-mirror: Invalid number of mirrors";
- dm_destroy_dirty_log(dl);
- return -EINVAL;
- }
-
- argv++, argc--;
-
- if (argc != nr_mirrors * 2) {
- ti->error = "dm-mirror: Wrong number of mirror arguments";
- dm_destroy_dirty_log(dl);
- return -EINVAL;
- }
-
- ms = alloc_context(nr_mirrors, dl->type->get_region_size(dl), ti, dl);
- if (!ms) {
- dm_destroy_dirty_log(dl);
- return -ENOMEM;
- }
-
- /* Get the mirror parameter sets */
- for (m = 0; m < nr_mirrors; m++) {
- r = get_mirror(ms, ti, m, argv);
- if (r) {
- free_context(ms, ti, m);
- return r;
- }
- argv += 2;
- argc -= 2;
- }
-
- ti->private = ms;
-
- r = kcopyd_client_create(DM_IO_PAGES, &ms->kcopyd_client);
- if (r) {
- free_context(ms, ti, ms->nr_mirrors);
- return r;
- }
-
- add_mirror_set(ms);
- return 0;
-}
-
-static void mirror_dtr(struct dm_target *ti)
-{
- struct mirror_set *ms = (struct mirror_set *) ti->private;
-
- del_mirror_set(ms);
- kcopyd_client_destroy(ms->kcopyd_client);
- free_context(ms, ti, ms->nr_mirrors);
-}
-
-static void queue_bio(struct mirror_set *ms, struct bio *bio, int rw)
-{
- int should_wake = 0;
- struct bio_list *bl;
-
- bl = (rw == WRITE) ? &ms->writes : &ms->reads;
- spin_lock(&ms->lock);
- should_wake = !(bl->head);
- bio_list_add(bl, bio);
- spin_unlock(&ms->lock);
-
- if (should_wake)
- wake();
-}
-
-/*
- * Mirror mapping function
- */
-static int mirror_map(struct dm_target *ti, struct bio *bio,
- union map_info *map_context)
-{
- int r, rw = bio_rw(bio);
- struct mirror *m;
- struct mirror_set *ms = ti->private;
-
- map_context->ll = bio->bi_sector >> ms->rh.region_shift;
-
- if (rw == WRITE) {
- queue_bio(ms, bio, rw);
- return 0;
- }
-
- r = ms->rh.log->type->in_sync(ms->rh.log,
- bio_to_region(&ms->rh, bio), 0);
- if (r < 0 && r != -EWOULDBLOCK)
- return r;
-
- if (r == -EWOULDBLOCK) /* FIXME: ugly */
- r = 0;
-
- /*
- * We don't want to fast track a recovery just for a read
- * ahead. So we just let it silently fail.
- * FIXME: get rid of this.
- */
- if (!r && rw == READA)
- return -EIO;
-
- if (!r) {
- /* Pass this io over to the daemon */
- queue_bio(ms, bio, rw);
- return 0;
- }
-
- m = choose_mirror(ms, bio->bi_sector);
- if (!m)
- return -EIO;
-
- map_bio(ms, m, bio);
- return 1;
-}
-
-static int mirror_end_io(struct dm_target *ti, struct bio *bio,
- int error, union map_info *map_context)
-{
- int rw = bio_rw(bio);
- struct mirror_set *ms = (struct mirror_set *) ti->private;
- region_t region = map_context->ll;
-
- /*
- * We need to dec pending if this was a write.
- */
- if (rw == WRITE)
- rh_dec(&ms->rh, region);
-
- return 0;
-}
-
-static void mirror_suspend(struct dm_target *ti)
-{
- struct mirror_set *ms = (struct mirror_set *) ti->private;
- struct dirty_log *log = ms->rh.log;
- rh_stop_recovery(&ms->rh);
- if (log->type->suspend && log->type->suspend(log))
- /* FIXME: need better error handling */
- DMWARN("log suspend failed");
-}
-
-static void mirror_resume(struct dm_target *ti)
-{
- struct mirror_set *ms = (struct mirror_set *) ti->private;
- struct dirty_log *log = ms->rh.log;
- if (log->type->resume && log->type->resume(log))
- /* FIXME: need better error handling */
- DMWARN("log resume failed");
- rh_start_recovery(&ms->rh);
-}
-
-static int mirror_status(struct dm_target *ti, status_type_t type,
- char *result, unsigned int maxlen)
-{
- char buffer[32];
- unsigned int m, sz = 0;
- struct mirror_set *ms = (struct mirror_set *) ti->private;
-
-#define EMIT(x...) sz += ((sz >= maxlen) ? \
- 0 : scnprintf(result + sz, maxlen - sz, x))
-
- switch (type) {
- case STATUSTYPE_INFO:
- EMIT("%d ", ms->nr_mirrors);
-
- for (m = 0; m < ms->nr_mirrors; m++) {
- format_dev_t(buffer, ms->mirror[m].dev->bdev->bd_dev);
- EMIT("%s ", buffer);
- }
-
- EMIT(SECTOR_FORMAT "/" SECTOR_FORMAT,
- ms->rh.log->type->get_sync_count(ms->rh.log),
- ms->nr_regions);
- break;
-
- case STATUSTYPE_TABLE:
- EMIT("%s 1 " SECTOR_FORMAT " %d ",
- ms->rh.log->type->name, ms->rh.region_size,
- ms->nr_mirrors);
-
- for (m = 0; m < ms->nr_mirrors; m++) {
- format_dev_t(buffer, ms->mirror[m].dev->bdev->bd_dev);
- EMIT("%s " SECTOR_FORMAT " ",
- buffer, ms->mirror[m].offset);
- }
- }
-
- return 0;
-}
-
-static struct target_type mirror_target = {
- .name = "mirror",
- .version = {1, 0, 1},
- .module = THIS_MODULE,
- .ctr = mirror_ctr,
- .dtr = mirror_dtr,
- .map = mirror_map,
- .end_io = mirror_end_io,
- .suspend = mirror_suspend,
- .resume = mirror_resume,
- .status = mirror_status,
-};
-
-static int __init dm_mirror_init(void)
-{
- int r;
-
- r = dm_dirty_log_init();
- if (r)
- return r;
-
- _kmirrord_wq = create_workqueue("kmirrord");
- if (!_kmirrord_wq) {
- DMERR("couldn't start kmirrord");
- dm_dirty_log_exit();
- return r;
- }
- INIT_WORK(&_kmirrord_work, do_work, NULL);
-
- r = dm_register_target(&mirror_target);
- if (r < 0) {
- DMERR("%s: Failed to register mirror target",
- mirror_target.name);
- dm_dirty_log_exit();
- destroy_workqueue(_kmirrord_wq);
- }
-
- return r;
-}
-
-static void __exit dm_mirror_exit(void)
-{
- int r;
-
- r = dm_unregister_target(&mirror_target);
- if (r < 0)
- DMERR("%s: unregister failed %d", mirror_target.name, r);
-
- destroy_workqueue(_kmirrord_wq);
- dm_dirty_log_exit();
-}
-
-/* Module hooks */
-module_init(dm_mirror_init);
-module_exit(dm_mirror_exit);
-
-MODULE_DESCRIPTION(DM_NAME " mirror target");
-MODULE_AUTHOR("Joe Thornber");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * dm-snapshot.c
- *
- * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
- *
- * This file is released under the GPL.
- */
-
-#include <linux/blkdev.h>
-#include <linux/config.h>
-#include <linux/ctype.h>
-#include <linux/device-mapper.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/kdev_t.h>
-#include <linux/list.h>
-#include <linux/mempool.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-#include "dm-snap.h"
-#include "dm-bio-list.h"
-#include "kcopyd.h"
-
-/*
- * The percentage increment we will wake up users at
- */
-#define WAKE_UP_PERCENT 5
-
-/*
- * kcopyd priority of snapshot operations
- */
-#define SNAPSHOT_COPY_PRIORITY 2
-
-/*
- * Each snapshot reserves this many pages for io
- */
-#define SNAPSHOT_PAGES 256
-
-struct pending_exception {
- struct exception e;
-
- /*
- * Origin buffers waiting for this to complete are held
- * in a bio list
- */
- struct bio_list origin_bios;
- struct bio_list snapshot_bios;
-
- /*
- * Other pending_exceptions that are processing this
- * chunk. When this list is empty, we know we can
- * complete the origins.
- */
- struct list_head siblings;
-
- /* Pointer back to snapshot context */
- struct dm_snapshot *snap;
-
- /*
- * 1 indicates the exception has already been sent to
- * kcopyd.
- */
- int started;
-};
-
-/*
- * Hash table mapping origin volumes to lists of snapshots and
- * a lock to protect it
- */
-static kmem_cache_t *exception_cache;
-static kmem_cache_t *pending_cache;
-static mempool_t *pending_pool;
-
-/*
- * One of these per registered origin, held in the snapshot_origins hash
- */
-struct origin {
- /* The origin device */
- struct block_device *bdev;
-
- struct list_head hash_list;
-
- /* List of snapshots for this origin */
- struct list_head snapshots;
-};
-
-/*
- * Size of the hash table for origin volumes. If we make this
- * the size of the minors list then it should be nearly perfect
- */
-#define ORIGIN_HASH_SIZE 256
-#define ORIGIN_MASK 0xFF
-static struct list_head *_origins;
-static struct rw_semaphore _origins_lock;
-
-static int init_origin_hash(void)
-{
- int i;
-
- _origins = kmalloc(ORIGIN_HASH_SIZE * sizeof(struct list_head),
- GFP_KERNEL);
- if (!_origins) {
- DMERR("Device mapper: Snapshot: unable to allocate memory");
- return -ENOMEM;
- }
-
- for (i = 0; i < ORIGIN_HASH_SIZE; i++)
- INIT_LIST_HEAD(_origins + i);
- init_rwsem(&_origins_lock);
-
- return 0;
-}
-
-static void exit_origin_hash(void)
-{
- kfree(_origins);
-}
-
-static inline unsigned int origin_hash(struct block_device *bdev)
-{
- return bdev->bd_dev & ORIGIN_MASK;
-}
-
-static struct origin *__lookup_origin(struct block_device *origin)
-{
- struct list_head *ol;
- struct origin *o;
-
- ol = &_origins[origin_hash(origin)];
- list_for_each_entry (o, ol, hash_list)
- if (bdev_equal(o->bdev, origin))
- return o;
-
- return NULL;
-}
-
-static void __insert_origin(struct origin *o)
-{
- struct list_head *sl = &_origins[origin_hash(o->bdev)];
- list_add_tail(&o->hash_list, sl);
-}
-
-/*
- * Make a note of the snapshot and its origin so we can look it
- * up when the origin has a write on it.
- */
-static int register_snapshot(struct dm_snapshot *snap)
-{
- struct origin *o;
- struct block_device *bdev = snap->origin->bdev;
-
- down_write(&_origins_lock);
- o = __lookup_origin(bdev);
-
- if (!o) {
- /* New origin */
- o = kmalloc(sizeof(*o), GFP_KERNEL);
- if (!o) {
- up_write(&_origins_lock);
- return -ENOMEM;
- }
-
- /* Initialise the struct */
- INIT_LIST_HEAD(&o->snapshots);
- o->bdev = bdev;
-
- __insert_origin(o);
- }
-
- list_add_tail(&snap->list, &o->snapshots);
-
- up_write(&_origins_lock);
- return 0;
-}
-
-static void unregister_snapshot(struct dm_snapshot *s)
-{
- struct origin *o;
-
- down_write(&_origins_lock);
- o = __lookup_origin(s->origin->bdev);
-
- list_del(&s->list);
- if (list_empty(&o->snapshots)) {
- list_del(&o->hash_list);
- kfree(o);
- }
-
- up_write(&_origins_lock);
-}
-
-/*
- * Implementation of the exception hash tables.
- */
-static int init_exception_table(struct exception_table *et, uint32_t size)
-{
- unsigned int i;
-
- et->hash_mask = size - 1;
- et->table = dm_vcalloc(size, sizeof(struct list_head));
- if (!et->table)
- return -ENOMEM;
-
- for (i = 0; i < size; i++)
- INIT_LIST_HEAD(et->table + i);
-
- return 0;
-}
-
-static void exit_exception_table(struct exception_table *et, kmem_cache_t *mem)
-{
- struct list_head *slot;
- struct exception *ex, *next;
- int i, size;
-
- size = et->hash_mask + 1;
- for (i = 0; i < size; i++) {
- slot = et->table + i;
-
- list_for_each_entry_safe (ex, next, slot, hash_list)
- kmem_cache_free(mem, ex);
- }
-
- vfree(et->table);
-}
-
-static inline uint32_t exception_hash(struct exception_table *et, chunk_t chunk)
-{
- return chunk & et->hash_mask;
-}
-
-static void insert_exception(struct exception_table *eh, struct exception *e)
-{
- struct list_head *l = &eh->table[exception_hash(eh, e->old_chunk)];
- list_add(&e->hash_list, l);
-}
-
-static inline void remove_exception(struct exception *e)
-{
- list_del(&e->hash_list);
-}
-
-/*
- * Return the exception data for a sector, or NULL if not
- * remapped.
- */
-static struct exception *lookup_exception(struct exception_table *et,
- chunk_t chunk)
-{
- struct list_head *slot;
- struct exception *e;
-
- slot = &et->table[exception_hash(et, chunk)];
- list_for_each_entry (e, slot, hash_list)
- if (e->old_chunk == chunk)
- return e;
-
- return NULL;
-}
-
-static inline struct exception *alloc_exception(void)
-{
- struct exception *e;
-
- e = kmem_cache_alloc(exception_cache, GFP_NOIO);
- if (!e)
- e = kmem_cache_alloc(exception_cache, GFP_ATOMIC);
-
- return e;
-}
-
-static inline void free_exception(struct exception *e)
-{
- kmem_cache_free(exception_cache, e);
-}
-
-static inline struct pending_exception *alloc_pending_exception(void)
-{
- return mempool_alloc(pending_pool, GFP_NOIO);
-}
-
-static inline void free_pending_exception(struct pending_exception *pe)
-{
- mempool_free(pe, pending_pool);
-}
-
-int dm_add_exception(struct dm_snapshot *s, chunk_t old, chunk_t new)
-{
- struct exception *e;
-
- e = alloc_exception();
- if (!e)
- return -ENOMEM;
-
- e->old_chunk = old;
- e->new_chunk = new;
- insert_exception(&s->complete, e);
- return 0;
-}
-
-/*
- * Hard coded magic.
- */
-static int calc_max_buckets(void)
-{
- /* use a fixed size of 2MB */
- unsigned long mem = 2 * 1024 * 1024;
- mem /= sizeof(struct list_head);
-
- return mem;
-}
-
-/*
- * Rounds a number down to a power of 2.
- */
-static inline uint32_t round_down(uint32_t n)
-{
- while (n & (n - 1))
- n &= (n - 1);
- return n;
-}
-
-/*
- * Allocate room for a suitable hash table.
- */
-static int init_hash_tables(struct dm_snapshot *s)
-{
- sector_t hash_size, cow_dev_size, origin_dev_size, max_buckets;
-
- /*
- * Calculate based on the size of the original volume or
- * the COW volume...
- */
- cow_dev_size = get_dev_size(s->cow->bdev);
- origin_dev_size = get_dev_size(s->origin->bdev);
- max_buckets = calc_max_buckets();
-
- hash_size = min(origin_dev_size, cow_dev_size) >> s->chunk_shift;
- hash_size = min(hash_size, max_buckets);
-
- /* Round it down to a power of 2 */
- hash_size = round_down(hash_size);
- if (init_exception_table(&s->complete, hash_size))
- return -ENOMEM;
-
- /*
- * Allocate hash table for in-flight exceptions
- * Make this smaller than the real hash table
- */
- hash_size >>= 3;
- if (hash_size < 64)
- hash_size = 64;
-
- if (init_exception_table(&s->pending, hash_size)) {
- exit_exception_table(&s->complete, exception_cache);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-/*
- * Round a number up to the nearest 'size' boundary. size must
- * be a power of 2.
- */
-static inline ulong round_up(ulong n, ulong size)
-{
- size--;
- return (n + size) & ~size;
-}
-
-/*
- * Construct a snapshot mapping: <origin_dev> <COW-dev> <p/n> <chunk-size>
- */
-static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
-{
- struct dm_snapshot *s;
- unsigned long chunk_size;
- int r = -EINVAL;
- char persistent;
- char *origin_path;
- char *cow_path;
- char *value;
- int blocksize;
-
- if (argc < 4) {
- ti->error = "dm-snapshot: requires exactly 4 arguments";
- r = -EINVAL;
- goto bad1;
- }
-
- origin_path = argv[0];
- cow_path = argv[1];
- persistent = toupper(*argv[2]);
-
- if (persistent != 'P' && persistent != 'N') {
- ti->error = "Persistent flag is not P or N";
- r = -EINVAL;
- goto bad1;
- }
-
- chunk_size = simple_strtoul(argv[3], &value, 10);
- if (chunk_size == 0 || value == NULL) {
- ti->error = "Invalid chunk size";
- r = -EINVAL;
- goto bad1;
- }
-
- s = kmalloc(sizeof(*s), GFP_KERNEL);
- if (s == NULL) {
- ti->error = "Cannot allocate snapshot context private "
- "structure";
- r = -ENOMEM;
- goto bad1;
- }
-
- r = dm_get_device(ti, origin_path, 0, ti->len, FMODE_READ, &s->origin);
- if (r) {
- ti->error = "Cannot get origin device";
- goto bad2;
- }
-
- r = dm_get_device(ti, cow_path, 0, 0,
- FMODE_READ | FMODE_WRITE, &s->cow);
- if (r) {
- dm_put_device(ti, s->origin);
- ti->error = "Cannot get COW device";
- goto bad2;
- }
-
- /*
- * Chunk size must be multiple of page size. Silently
- * round up if it's not.
- */
- chunk_size = round_up(chunk_size, PAGE_SIZE >> 9);
-
- /* Validate the chunk size against the device block size */
- blocksize = s->cow->bdev->bd_disk->queue->hardsect_size;
- if (chunk_size % (blocksize >> 9)) {
- ti->error = "Chunk size is not a multiple of device blocksize";
- r = -EINVAL;
- goto bad3;
- }
-
- /* Check chunk_size is a power of 2 */
- if (chunk_size & (chunk_size - 1)) {
- ti->error = "Chunk size is not a power of 2";
- r = -EINVAL;
- goto bad3;
- }
-
- s->chunk_size = chunk_size;
- s->chunk_mask = chunk_size - 1;
- s->type = persistent;
- s->chunk_shift = ffs(chunk_size) - 1;
-
- s->valid = 1;
- s->have_metadata = 0;
- s->last_percent = 0;
- init_rwsem(&s->lock);
- s->table = ti->table;
-
- /* Allocate hash table for COW data */
- if (init_hash_tables(s)) {
- ti->error = "Unable to allocate hash table space";
- r = -ENOMEM;
- goto bad3;
- }
-
- /*
- * Check the persistent flag - done here because we need the iobuf
- * to check the LV header
- */
- s->store.snap = s;
-
- if (persistent == 'P')
- r = dm_create_persistent(&s->store, chunk_size);
- else
- r = dm_create_transient(&s->store, s, blocksize);
-
- if (r) {
- ti->error = "Couldn't create exception store";
- r = -EINVAL;
- goto bad4;
- }
-
- r = kcopyd_client_create(SNAPSHOT_PAGES, &s->kcopyd_client);
- if (r) {
- ti->error = "Could not create kcopyd client";
- goto bad5;
- }
-
- /* Add snapshot to the list of snapshots for this origin */
- if (register_snapshot(s)) {
- r = -EINVAL;
- ti->error = "Cannot register snapshot origin";
- goto bad6;
- }
-
- ti->private = s;
- ti->split_io = chunk_size;
-
- return 0;
-
- bad6:
- kcopyd_client_destroy(s->kcopyd_client);
-
- bad5:
- s->store.destroy(&s->store);
-
- bad4:
- exit_exception_table(&s->pending, pending_cache);
- exit_exception_table(&s->complete, exception_cache);
-
- bad3:
- dm_put_device(ti, s->cow);
- dm_put_device(ti, s->origin);
-
- bad2:
- kfree(s);
-
- bad1:
- return r;
-}
-
-static void snapshot_dtr(struct dm_target *ti)
-{
- struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
-
- unregister_snapshot(s);
-
- exit_exception_table(&s->pending, pending_cache);
- exit_exception_table(&s->complete, exception_cache);
-
- /* Deallocate memory used */
- s->store.destroy(&s->store);
-
- dm_put_device(ti, s->origin);
- dm_put_device(ti, s->cow);
- kcopyd_client_destroy(s->kcopyd_client);
- kfree(s);
-}
-
-/*
- * Flush a list of buffers.
- */
-static void flush_bios(struct bio *bio)
-{
- struct bio *n;
-
- while (bio) {
- n = bio->bi_next;
- bio->bi_next = NULL;
- generic_make_request(bio);
- bio = n;
- }
-}
-
-/*
- * Error a list of buffers.
- */
-static void error_bios(struct bio *bio)
-{
- struct bio *n;
-
- while (bio) {
- n = bio->bi_next;
- bio->bi_next = NULL;
- bio_io_error(bio, bio->bi_size);
- bio = n;
- }
-}
-
-static struct bio *__flush_bios(struct pending_exception *pe)
-{
- struct pending_exception *sibling;
-
- if (list_empty(&pe->siblings))
- return bio_list_get(&pe->origin_bios);
-
- sibling = list_entry(pe->siblings.next,
- struct pending_exception, siblings);
-
- list_del(&pe->siblings);
-
- /* This is fine as long as kcopyd is single-threaded. If kcopyd
- * becomes multi-threaded, we'll need some locking here.
- */
- bio_list_merge(&sibling->origin_bios, &pe->origin_bios);
-
- return NULL;
-}
-
-static void pending_complete(struct pending_exception *pe, int success)
-{
- struct exception *e;
- struct dm_snapshot *s = pe->snap;
- struct bio *flush = NULL;
-
- if (success) {
- e = alloc_exception();
- if (!e) {
- DMWARN("Unable to allocate exception.");
- down_write(&s->lock);
- s->store.drop_snapshot(&s->store);
- s->valid = 0;
- flush = __flush_bios(pe);
- up_write(&s->lock);
-
- error_bios(bio_list_get(&pe->snapshot_bios));
- goto out;
- }
- *e = pe->e;
-
- /*
- * Add a proper exception, and remove the
- * in-flight exception from the list.
- */
- down_write(&s->lock);
- insert_exception(&s->complete, e);
- remove_exception(&pe->e);
- flush = __flush_bios(pe);
-
- /* Submit any pending write bios */
- up_write(&s->lock);
-
- flush_bios(bio_list_get(&pe->snapshot_bios));
- } else {
- /* Read/write error - snapshot is unusable */
- down_write(&s->lock);
- if (s->valid)
- DMERR("Error reading/writing snapshot");
- s->store.drop_snapshot(&s->store);
- s->valid = 0;
- remove_exception(&pe->e);
- flush = __flush_bios(pe);
- up_write(&s->lock);
-
- error_bios(bio_list_get(&pe->snapshot_bios));
-
- dm_table_event(s->table);
- }
-
- out:
- free_pending_exception(pe);
-
- if (flush)
- flush_bios(flush);
-}
-
-static void commit_callback(void *context, int success)
-{
- struct pending_exception *pe = (struct pending_exception *) context;
- pending_complete(pe, success);
-}
-
-/*
- * Called when the copy I/O has finished. kcopyd actually runs
- * this code so don't block.
- */
-static void copy_callback(int read_err, unsigned int write_err, void *context)
-{
- struct pending_exception *pe = (struct pending_exception *) context;
- struct dm_snapshot *s = pe->snap;
-
- if (read_err || write_err)
- pending_complete(pe, 0);
-
- else
- /* Update the metadata if we are persistent */
- s->store.commit_exception(&s->store, &pe->e, commit_callback,
- pe);
-}
-
-/*
- * Dispatches the copy operation to kcopyd.
- */
-static inline void start_copy(struct pending_exception *pe)
-{
- struct dm_snapshot *s = pe->snap;
- struct io_region src, dest;
- struct block_device *bdev = s->origin->bdev;
- sector_t dev_size;
-
- dev_size = get_dev_size(bdev);
-
- src.bdev = bdev;
- src.sector = chunk_to_sector(s, pe->e.old_chunk);
- src.count = min(s->chunk_size, dev_size - src.sector);
-
- dest.bdev = s->cow->bdev;
- dest.sector = chunk_to_sector(s, pe->e.new_chunk);
- dest.count = src.count;
-
- /* Hand over to kcopyd */
- kcopyd_copy(s->kcopyd_client,
- &src, 1, &dest, 0, copy_callback, pe);
-}
-
-/*
- * Looks to see if this snapshot already has a pending exception
- * for this chunk, otherwise it allocates a new one and inserts
- * it into the pending table.
- *
- * NOTE: a write lock must be held on snap->lock before calling
- * this.
- */
-static struct pending_exception *
-__find_pending_exception(struct dm_snapshot *s, struct bio *bio)
-{
- struct exception *e;
- struct pending_exception *pe;
- chunk_t chunk = sector_to_chunk(s, bio->bi_sector);
-
- /*
- * Is there a pending exception for this already ?
- */
- e = lookup_exception(&s->pending, chunk);
- if (e) {
- /* cast the exception to a pending exception */
- pe = container_of(e, struct pending_exception, e);
-
- } else {
- /*
- * Create a new pending exception, we don't want
- * to hold the lock while we do this.
- */
- up_write(&s->lock);
- pe = alloc_pending_exception();
- down_write(&s->lock);
-
- e = lookup_exception(&s->pending, chunk);
- if (e) {
- free_pending_exception(pe);
- pe = container_of(e, struct pending_exception, e);
- } else {
- pe->e.old_chunk = chunk;
- bio_list_init(&pe->origin_bios);
- bio_list_init(&pe->snapshot_bios);
- INIT_LIST_HEAD(&pe->siblings);
- pe->snap = s;
- pe->started = 0;
-
- if (s->store.prepare_exception(&s->store, &pe->e)) {
- free_pending_exception(pe);
- s->valid = 0;
- return NULL;
- }
-
- insert_exception(&s->pending, &pe->e);
- }
- }
-
- return pe;
-}
-
-static inline void remap_exception(struct dm_snapshot *s, struct exception *e,
- struct bio *bio)
-{
- bio->bi_bdev = s->cow->bdev;
- bio->bi_sector = chunk_to_sector(s, e->new_chunk) +
- (bio->bi_sector & s->chunk_mask);
-}
-
-static int snapshot_map(struct dm_target *ti, struct bio *bio,
- union map_info *map_context)
-{
- struct exception *e;
- struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
- int r = 1;
- chunk_t chunk;
- struct pending_exception *pe;
-
- chunk = sector_to_chunk(s, bio->bi_sector);
-
- /* Full snapshots are not usable */
- if (!s->valid)
- return -1;
-
- /*
- * Write to snapshot - higher level takes care of RW/RO
- * flags so we should only get this if we are
- * writeable.
- */
- if (bio_rw(bio) == WRITE) {
-
- /* FIXME: should only take write lock if we need
- * to copy an exception */
- down_write(&s->lock);
-
- /* If the block is already remapped - use that, else remap it */
- e = lookup_exception(&s->complete, chunk);
- if (e) {
- remap_exception(s, e, bio);
- up_write(&s->lock);
-
- } else {
- pe = __find_pending_exception(s, bio);
-
- if (!pe) {
- if (s->store.drop_snapshot)
- s->store.drop_snapshot(&s->store);
- s->valid = 0;
- r = -EIO;
- up_write(&s->lock);
- } else {
- remap_exception(s, &pe->e, bio);
- bio_list_add(&pe->snapshot_bios, bio);
-
- if (!pe->started) {
- /* this is protected by snap->lock */
- pe->started = 1;
- up_write(&s->lock);
- start_copy(pe);
- } else
- up_write(&s->lock);
- r = 0;
- }
- }
-
- } else {
- /*
- * FIXME: this read path scares me because we
- * always use the origin when we have a pending
- * exception. However I can't think of a
- * situation where this is wrong - ejt.
- */
-
- /* Do reads */
- down_read(&s->lock);
-
- /* See if it it has been remapped */
- e = lookup_exception(&s->complete, chunk);
- if (e)
- remap_exception(s, e, bio);
- else
- bio->bi_bdev = s->origin->bdev;
-
- up_read(&s->lock);
- }
-
- return r;
-}
-
-static void snapshot_resume(struct dm_target *ti)
-{
- struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
-
- if (s->have_metadata)
- return;
-
- if (s->store.read_metadata(&s->store)) {
- down_write(&s->lock);
- s->valid = 0;
- up_write(&s->lock);
- }
-
- s->have_metadata = 1;
-}
-
-static int snapshot_status(struct dm_target *ti, status_type_t type,
- char *result, unsigned int maxlen)
-{
- struct dm_snapshot *snap = (struct dm_snapshot *) ti->private;
- char cow[32];
- char org[32];
-
- switch (type) {
- case STATUSTYPE_INFO:
- if (!snap->valid)
- snprintf(result, maxlen, "Invalid");
- else {
- if (snap->store.fraction_full) {
- sector_t numerator, denominator;
- snap->store.fraction_full(&snap->store,
- &numerator,
- &denominator);
- snprintf(result, maxlen,
- SECTOR_FORMAT "/" SECTOR_FORMAT,
- numerator, denominator);
- }
- else
- snprintf(result, maxlen, "Unknown");
- }
- break;
-
- case STATUSTYPE_TABLE:
- /*
- * kdevname returns a static pointer so we need
- * to make private copies if the output is to
- * make sense.
- */
- format_dev_t(cow, snap->cow->bdev->bd_dev);
- format_dev_t(org, snap->origin->bdev->bd_dev);
- snprintf(result, maxlen, "%s %s %c " SECTOR_FORMAT, org, cow,
- snap->type, snap->chunk_size);
- break;
- }
-
- return 0;
-}
-
-/*-----------------------------------------------------------------
- * Origin methods
- *---------------------------------------------------------------*/
-static void list_merge(struct list_head *l1, struct list_head *l2)
-{
- struct list_head *l1_n, *l2_p;
-
- l1_n = l1->next;
- l2_p = l2->prev;
-
- l1->next = l2;
- l2->prev = l1;
-
- l2_p->next = l1_n;
- l1_n->prev = l2_p;
-}
-
-static int __origin_write(struct list_head *snapshots, struct bio *bio)
-{
- int r = 1, first = 1;
- struct dm_snapshot *snap;
- struct exception *e;
- struct pending_exception *pe, *last = NULL;
- chunk_t chunk;
-
- /* Do all the snapshots on this origin */
- list_for_each_entry (snap, snapshots, list) {
-
- /* Only deal with valid snapshots */
- if (!snap->valid)
- continue;
-
- down_write(&snap->lock);
-
- /*
- * Remember, different snapshots can have
- * different chunk sizes.
- */
- chunk = sector_to_chunk(snap, bio->bi_sector);
-
- /*
- * Check exception table to see if block
- * is already remapped in this snapshot
- * and trigger an exception if not.
- */
- e = lookup_exception(&snap->complete, chunk);
- if (!e) {
- pe = __find_pending_exception(snap, bio);
- if (!pe) {
- snap->store.drop_snapshot(&snap->store);
- snap->valid = 0;
-
- } else {
- if (last)
- list_merge(&pe->siblings,
- &last->siblings);
-
- last = pe;
- r = 0;
- }
- }
-
- up_write(&snap->lock);
- }
-
- /*
- * Now that we have a complete pe list we can start the copying.
- */
- if (last) {
- pe = last;
- do {
- down_write(&pe->snap->lock);
- if (first)
- bio_list_add(&pe->origin_bios, bio);
- if (!pe->started) {
- pe->started = 1;
- up_write(&pe->snap->lock);
- start_copy(pe);
- } else
- up_write(&pe->snap->lock);
- first = 0;
- pe = list_entry(pe->siblings.next,
- struct pending_exception, siblings);
-
- } while (pe != last);
- }
-
- return r;
-}
-
-/*
- * Called on a write from the origin driver.
- */
-static int do_origin(struct dm_dev *origin, struct bio *bio)
-{
- struct origin *o;
- int r = 1;
-
- down_read(&_origins_lock);
- o = __lookup_origin(origin->bdev);
- if (o)
- r = __origin_write(&o->snapshots, bio);
- up_read(&_origins_lock);
-
- return r;
-}
-
-/*
- * Origin: maps a linear range of a device, with hooks for snapshotting.
- */
-
-/*
- * Construct an origin mapping: <dev_path>
- * The context for an origin is merely a 'struct dm_dev *'
- * pointing to the real device.
- */
-static int origin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
-{
- int r;
- struct dm_dev *dev;
-
- if (argc != 1) {
- ti->error = "dm-origin: incorrect number of arguments";
- return -EINVAL;
- }
-
- r = dm_get_device(ti, argv[0], 0, ti->len,
- dm_table_get_mode(ti->table), &dev);
- if (r) {
- ti->error = "Cannot get target device";
- return r;
- }
-
- ti->private = dev;
- return 0;
-}
-
-static void origin_dtr(struct dm_target *ti)
-{
- struct dm_dev *dev = (struct dm_dev *) ti->private;
- dm_put_device(ti, dev);
-}
-
-static int origin_map(struct dm_target *ti, struct bio *bio,
- union map_info *map_context)
-{
- struct dm_dev *dev = (struct dm_dev *) ti->private;
- bio->bi_bdev = dev->bdev;
-
- /* Only tell snapshots if this is a write */
- return (bio_rw(bio) == WRITE) ? do_origin(dev, bio) : 1;
-}
-
-#define min_not_zero(l, r) (l == 0) ? r : ((r == 0) ? l : min(l, r))
-
-/*
- * Set the target "split_io" field to the minimum of all the snapshots'
- * chunk sizes.
- */
-static void origin_resume(struct dm_target *ti)
-{
- struct dm_dev *dev = (struct dm_dev *) ti->private;
- struct dm_snapshot *snap;
- struct origin *o;
- chunk_t chunk_size = 0;
-
- down_read(&_origins_lock);
- o = __lookup_origin(dev->bdev);
- if (o)
- list_for_each_entry (snap, &o->snapshots, list)
- chunk_size = min_not_zero(chunk_size, snap->chunk_size);
- up_read(&_origins_lock);
-
- ti->split_io = chunk_size;
-}
-
-static int origin_status(struct dm_target *ti, status_type_t type, char *result,
- unsigned int maxlen)
-{
- struct dm_dev *dev = (struct dm_dev *) ti->private;
- char buffer[32];
-
- switch (type) {
- case STATUSTYPE_INFO:
- result[0] = '\0';
- break;
-
- case STATUSTYPE_TABLE:
- format_dev_t(buffer, dev->bdev->bd_dev);
- snprintf(result, maxlen, "%s", buffer);
- break;
- }
-
- return 0;
-}
-
-static struct target_type origin_target = {
- .name = "snapshot-origin",
- .version = {1, 0, 1},
- .module = THIS_MODULE,
- .ctr = origin_ctr,
- .dtr = origin_dtr,
- .map = origin_map,
- .resume = origin_resume,
- .status = origin_status,
-};
-
-static struct target_type snapshot_target = {
- .name = "snapshot",
- .version = {1, 0, 1},
- .module = THIS_MODULE,
- .ctr = snapshot_ctr,
- .dtr = snapshot_dtr,
- .map = snapshot_map,
- .resume = snapshot_resume,
- .status = snapshot_status,
-};
-
-static int __init dm_snapshot_init(void)
-{
- int r;
-
- r = dm_register_target(&snapshot_target);
- if (r) {
- DMERR("snapshot target register failed %d", r);
- return r;
- }
-
- r = dm_register_target(&origin_target);
- if (r < 0) {
- DMERR("Device mapper: Origin: register failed %d\n", r);
- goto bad1;
- }
-
- r = init_origin_hash();
- if (r) {
- DMERR("init_origin_hash failed.");
- goto bad2;
- }
-
- exception_cache = kmem_cache_create("dm-snapshot-ex",
- sizeof(struct exception),
- __alignof__(struct exception),
- 0, NULL, NULL);
- if (!exception_cache) {
- DMERR("Couldn't create exception cache.");
- r = -ENOMEM;
- goto bad3;
- }
-
- pending_cache =
- kmem_cache_create("dm-snapshot-in",
- sizeof(struct pending_exception),
- __alignof__(struct pending_exception),
- 0, NULL, NULL);
- if (!pending_cache) {
- DMERR("Couldn't create pending cache.");
- r = -ENOMEM;
- goto bad4;
- }
-
- pending_pool = mempool_create(128, mempool_alloc_slab,
- mempool_free_slab, pending_cache);
- if (!pending_pool) {
- DMERR("Couldn't create pending pool.");
- r = -ENOMEM;
- goto bad5;
- }
-
- return 0;
-
- bad5:
- kmem_cache_destroy(pending_cache);
- bad4:
- kmem_cache_destroy(exception_cache);
- bad3:
- exit_origin_hash();
- bad2:
- dm_unregister_target(&origin_target);
- bad1:
- dm_unregister_target(&snapshot_target);
- return r;
-}
-
-static void __exit dm_snapshot_exit(void)
-{
- int r;
-
- r = dm_unregister_target(&snapshot_target);
- if (r)
- DMERR("snapshot unregister failed %d", r);
-
- r = dm_unregister_target(&origin_target);
- if (r)
- DMERR("origin unregister failed %d", r);
-
- exit_origin_hash();
- mempool_destroy(pending_pool);
- kmem_cache_destroy(pending_cache);
- kmem_cache_destroy(exception_cache);
-}
-
-/* Module hooks */
-module_init(dm_snapshot_init);
-module_exit(dm_snapshot_exit);
-
-MODULE_DESCRIPTION(DM_NAME " snapshot target");
-MODULE_AUTHOR("Joe Thornber");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * dm-snapshot.c
- *
- * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
- *
- * This file is released under the GPL.
- */
-
-#ifndef DM_SNAPSHOT_H
-#define DM_SNAPSHOT_H
-
-#include "dm.h"
-#include <linux/blkdev.h>
-
-struct exception_table {
- uint32_t hash_mask;
- struct list_head *table;
-};
-
-/*
- * The snapshot code deals with largish chunks of the disk at a
- * time. Typically 64k - 256k.
- */
-/* FIXME: can we get away with limiting these to a uint32_t ? */
-typedef sector_t chunk_t;
-
-/*
- * An exception is used where an old chunk of data has been
- * replaced by a new one.
- */
-struct exception {
- struct list_head hash_list;
-
- chunk_t old_chunk;
- chunk_t new_chunk;
-};
-
-/*
- * Abstraction to handle the meta/layout of exception stores (the
- * COW device).
- */
-struct exception_store {
-
- /*
- * Destroys this object when you've finished with it.
- */
- void (*destroy) (struct exception_store *store);
-
- /*
- * The target shouldn't read the COW device until this is
- * called.
- */
- int (*read_metadata) (struct exception_store *store);
-
- /*
- * Find somewhere to store the next exception.
- */
- int (*prepare_exception) (struct exception_store *store,
- struct exception *e);
-
- /*
- * Update the metadata with this exception.
- */
- void (*commit_exception) (struct exception_store *store,
- struct exception *e,
- void (*callback) (void *, int success),
- void *callback_context);
-
- /*
- * The snapshot is invalid, note this in the metadata.
- */
- void (*drop_snapshot) (struct exception_store *store);
-
- /*
- * Return how full the snapshot is.
- */
- void (*fraction_full) (struct exception_store *store,
- sector_t *numerator,
- sector_t *denominator);
-
- struct dm_snapshot *snap;
- void *context;
-};
-
-struct dm_snapshot {
- struct rw_semaphore lock;
- struct dm_table *table;
-
- struct dm_dev *origin;
- struct dm_dev *cow;
-
- /* List of snapshots per Origin */
- struct list_head list;
-
- /* Size of data blocks saved - must be a power of 2 */
- chunk_t chunk_size;
- chunk_t chunk_mask;
- chunk_t chunk_shift;
-
- /* You can't use a snapshot if this is 0 (e.g. if full) */
- int valid;
- int have_metadata;
-
- /* Used for display of table */
- char type;
-
- /* The last percentage we notified */
- int last_percent;
-
- struct exception_table pending;
- struct exception_table complete;
-
- /* The on disk metadata handler */
- struct exception_store store;
-
- struct kcopyd_client *kcopyd_client;
-};
-
-/*
- * Used by the exception stores to load exceptions hen
- * initialising.
- */
-int dm_add_exception(struct dm_snapshot *s, chunk_t old, chunk_t new);
-
-/*
- * Constructor and destructor for the default persistent
- * store.
- */
-int dm_create_persistent(struct exception_store *store, uint32_t chunk_size);
-
-int dm_create_transient(struct exception_store *store,
- struct dm_snapshot *s, int blocksize);
-
-/*
- * Return the number of sectors in the device.
- */
-static inline sector_t get_dev_size(struct block_device *bdev)
-{
- return bdev->bd_inode->i_size >> SECTOR_SHIFT;
-}
-
-static inline chunk_t sector_to_chunk(struct dm_snapshot *s, sector_t sector)
-{
- return (sector & ~s->chunk_mask) >> s->chunk_shift;
-}
-
-static inline sector_t chunk_to_sector(struct dm_snapshot *s, chunk_t chunk)
-{
- return chunk << s->chunk_shift;
-}
-
-static inline int bdev_equal(struct block_device *lhs, struct block_device *rhs)
-{
- /*
- * There is only ever one instance of a particular block
- * device so we can compare pointers safely.
- */
- return lhs == rhs;
-}
-
-#endif
+++ /dev/null
-/*
- * Copyright (C) 2003 Christophe Saout <christophe@saout.de>
- *
- * This file is released under the GPL.
- */
-
-#include "dm.h"
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/bio.h>
-
-/*
- * Construct a dummy mapping that only returns zeros
- */
-static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv)
-{
- if (argc != 0) {
- ti->error = "dm-zero: No arguments required";
- return -EINVAL;
- }
-
- return 0;
-}
-
-/*
- * Fills the bio pages with zeros
- */
-static void zero_fill_bio(struct bio *bio)
-{
- unsigned long flags;
- struct bio_vec *bv;
- int i;
-
- bio_for_each_segment(bv, bio, i) {
- char *data = bvec_kmap_irq(bv, &flags);
- memset(data, 0, bv->bv_len);
- flush_dcache_page(bv->bv_page);
- bvec_kunmap_irq(data, &flags);
- }
-}
-
-/*
- * Return zeros only on reads
- */
-static int zero_map(struct dm_target *ti, struct bio *bio,
- union map_info *map_context)
-{
- switch(bio_rw(bio)) {
- case READ:
- zero_fill_bio(bio);
- break;
- case READA:
- /* readahead of null bytes only wastes buffer cache */
- return -EIO;
- case WRITE:
- /* writes get silently dropped */
- break;
- }
-
- bio_endio(bio, bio->bi_size, 0);
-
- /* accepted bio, don't make new request */
- return 0;
-}
-
-static struct target_type zero_target = {
- .name = "zero",
- .version = {1, 0, 0},
- .module = THIS_MODULE,
- .ctr = zero_ctr,
- .map = zero_map,
-};
-
-int __init dm_zero_init(void)
-{
- int r = dm_register_target(&zero_target);
-
- if (r < 0)
- DMERR("zero: register failed %d", r);
-
- return r;
-}
-
-void __exit dm_zero_exit(void)
-{
- int r = dm_unregister_target(&zero_target);
-
- if (r < 0)
- DMERR("zero: unregister failed %d", r);
-}
-
-module_init(dm_zero_init)
-module_exit(dm_zero_exit)
-
-MODULE_AUTHOR("Christophe Saout <christophe@saout.de>");
-MODULE_DESCRIPTION(DM_NAME " dummy target returning zeros");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Copyright (C) 2002 Sistina Software (UK) Limited.
- *
- * This file is released under the GPL.
- *
- * Kcopyd provides a simple interface for copying an area of one
- * block-device to one or more other block-devices, with an asynchronous
- * completion notification.
- */
-
-#include <asm/atomic.h>
-
-#include <linux/blkdev.h>
-#include <linux/config.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/mempool.h>
-#include <linux/module.h>
-#include <linux/pagemap.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/workqueue.h>
-
-#include "kcopyd.h"
-
-/* FIXME: this is only needed for the DMERR macros */
-#include "dm.h"
-
-static struct workqueue_struct *_kcopyd_wq;
-static struct work_struct _kcopyd_work;
-
-static inline void wake(void)
-{
- queue_work(_kcopyd_wq, &_kcopyd_work);
-}
-
-/*-----------------------------------------------------------------
- * Each kcopyd client has its own little pool of preallocated
- * pages for kcopyd io.
- *---------------------------------------------------------------*/
-struct kcopyd_client {
- struct list_head list;
-
- spinlock_t lock;
- struct page_list *pages;
- unsigned int nr_pages;
- unsigned int nr_free_pages;
-};
-
-static struct page_list *alloc_pl(void)
-{
- struct page_list *pl;
-
- pl = kmalloc(sizeof(*pl), GFP_KERNEL);
- if (!pl)
- return NULL;
-
- pl->page = alloc_page(GFP_KERNEL);
- if (!pl->page) {
- kfree(pl);
- return NULL;
- }
-
- return pl;
-}
-
-static void free_pl(struct page_list *pl)
-{
- __free_page(pl->page);
- kfree(pl);
-}
-
-static int kcopyd_get_pages(struct kcopyd_client *kc,
- unsigned int nr, struct page_list **pages)
-{
- struct page_list *pl;
-
- spin_lock(&kc->lock);
- if (kc->nr_free_pages < nr) {
- spin_unlock(&kc->lock);
- return -ENOMEM;
- }
-
- kc->nr_free_pages -= nr;
- for (*pages = pl = kc->pages; --nr; pl = pl->next)
- ;
-
- kc->pages = pl->next;
- pl->next = 0;
-
- spin_unlock(&kc->lock);
-
- return 0;
-}
-
-static void kcopyd_put_pages(struct kcopyd_client *kc, struct page_list *pl)
-{
- struct page_list *cursor;
-
- spin_lock(&kc->lock);
- for (cursor = pl; cursor->next; cursor = cursor->next)
- kc->nr_free_pages++;
-
- kc->nr_free_pages++;
- cursor->next = kc->pages;
- kc->pages = pl;
- spin_unlock(&kc->lock);
-}
-
-/*
- * These three functions resize the page pool.
- */
-static void drop_pages(struct page_list *pl)
-{
- struct page_list *next;
-
- while (pl) {
- next = pl->next;
- free_pl(pl);
- pl = next;
- }
-}
-
-static int client_alloc_pages(struct kcopyd_client *kc, unsigned int nr)
-{
- unsigned int i;
- struct page_list *pl = NULL, *next;
-
- for (i = 0; i < nr; i++) {
- next = alloc_pl();
- if (!next) {
- if (pl)
- drop_pages(pl);
- return -ENOMEM;
- }
- next->next = pl;
- pl = next;
- }
-
- kcopyd_put_pages(kc, pl);
- kc->nr_pages += nr;
- return 0;
-}
-
-static void client_free_pages(struct kcopyd_client *kc)
-{
- BUG_ON(kc->nr_free_pages != kc->nr_pages);
- drop_pages(kc->pages);
- kc->pages = NULL;
- kc->nr_free_pages = kc->nr_pages = 0;
-}
-
-/*-----------------------------------------------------------------
- * kcopyd_jobs need to be allocated by the *clients* of kcopyd,
- * for this reason we use a mempool to prevent the client from
- * ever having to do io (which could cause a deadlock).
- *---------------------------------------------------------------*/
-struct kcopyd_job {
- struct kcopyd_client *kc;
- struct list_head list;
- unsigned long flags;
-
- /*
- * Error state of the job.
- */
- int read_err;
- unsigned int write_err;
-
- /*
- * Either READ or WRITE
- */
- int rw;
- struct io_region source;
-
- /*
- * The destinations for the transfer.
- */
- unsigned int num_dests;
- struct io_region dests[KCOPYD_MAX_REGIONS];
-
- sector_t offset;
- unsigned int nr_pages;
- struct page_list *pages;
-
- /*
- * Set this to ensure you are notified when the job has
- * completed. 'context' is for callback to use.
- */
- kcopyd_notify_fn fn;
- void *context;
-
- /*
- * These fields are only used if the job has been split
- * into more manageable parts.
- */
- struct semaphore lock;
- atomic_t sub_jobs;
- sector_t progress;
-};
-
-/* FIXME: this should scale with the number of pages */
-#define MIN_JOBS 512
-
-static kmem_cache_t *_job_cache;
-static mempool_t *_job_pool;
-
-/*
- * We maintain three lists of jobs:
- *
- * i) jobs waiting for pages
- * ii) jobs that have pages, and are waiting for the io to be issued.
- * iii) jobs that have completed.
- *
- * All three of these are protected by job_lock.
- */
-static spinlock_t _job_lock = SPIN_LOCK_UNLOCKED;
-
-static LIST_HEAD(_complete_jobs);
-static LIST_HEAD(_io_jobs);
-static LIST_HEAD(_pages_jobs);
-
-static int jobs_init(void)
-{
- _job_cache = kmem_cache_create("kcopyd-jobs",
- sizeof(struct kcopyd_job),
- __alignof__(struct kcopyd_job),
- 0, NULL, NULL);
- if (!_job_cache)
- return -ENOMEM;
-
- _job_pool = mempool_create(MIN_JOBS, mempool_alloc_slab,
- mempool_free_slab, _job_cache);
- if (!_job_pool) {
- kmem_cache_destroy(_job_cache);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-static void jobs_exit(void)
-{
- BUG_ON(!list_empty(&_complete_jobs));
- BUG_ON(!list_empty(&_io_jobs));
- BUG_ON(!list_empty(&_pages_jobs));
-
- mempool_destroy(_job_pool);
- kmem_cache_destroy(_job_cache);
- _job_pool = NULL;
- _job_cache = NULL;
-}
-
-/*
- * Functions to push and pop a job onto the head of a given job
- * list.
- */
-static inline struct kcopyd_job *pop(struct list_head *jobs)
-{
- struct kcopyd_job *job = NULL;
- unsigned long flags;
-
- spin_lock_irqsave(&_job_lock, flags);
-
- if (!list_empty(jobs)) {
- job = list_entry(jobs->next, struct kcopyd_job, list);
- list_del(&job->list);
- }
- spin_unlock_irqrestore(&_job_lock, flags);
-
- return job;
-}
-
-static inline void push(struct list_head *jobs, struct kcopyd_job *job)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&_job_lock, flags);
- list_add_tail(&job->list, jobs);
- spin_unlock_irqrestore(&_job_lock, flags);
-}
-
-/*
- * These three functions process 1 item from the corresponding
- * job list.
- *
- * They return:
- * < 0: error
- * 0: success
- * > 0: can't process yet.
- */
-static int run_complete_job(struct kcopyd_job *job)
-{
- void *context = job->context;
- int read_err = job->read_err;
- unsigned int write_err = job->write_err;
- kcopyd_notify_fn fn = job->fn;
-
- kcopyd_put_pages(job->kc, job->pages);
- mempool_free(job, _job_pool);
- fn(read_err, write_err, context);
- return 0;
-}
-
-static void complete_io(unsigned long error, void *context)
-{
- struct kcopyd_job *job = (struct kcopyd_job *) context;
-
- if (error) {
- if (job->rw == WRITE)
- job->write_err &= error;
- else
- job->read_err = 1;
-
- if (!test_bit(KCOPYD_IGNORE_ERROR, &job->flags)) {
- push(&_complete_jobs, job);
- wake();
- return;
- }
- }
-
- if (job->rw == WRITE)
- push(&_complete_jobs, job);
-
- else {
- job->rw = WRITE;
- push(&_io_jobs, job);
- }
-
- wake();
-}
-
-/*
- * Request io on as many buffer heads as we can currently get for
- * a particular job.
- */
-static int run_io_job(struct kcopyd_job *job)
-{
- int r;
-
- if (job->rw == READ)
- r = dm_io_async(1, &job->source, job->rw,
- job->pages,
- job->offset, complete_io, job);
-
- else
- r = dm_io_async(job->num_dests, job->dests, job->rw,
- job->pages,
- job->offset, complete_io, job);
-
- return r;
-}
-
-static int run_pages_job(struct kcopyd_job *job)
-{
- int r;
-
- job->nr_pages = dm_div_up(job->dests[0].count + job->offset,
- PAGE_SIZE >> 9);
- r = kcopyd_get_pages(job->kc, job->nr_pages, &job->pages);
- if (!r) {
- /* this job is ready for io */
- push(&_io_jobs, job);
- return 0;
- }
-
- if (r == -ENOMEM)
- /* can't complete now */
- return 1;
-
- return r;
-}
-
-/*
- * Run through a list for as long as possible. Returns the count
- * of successful jobs.
- */
-static int process_jobs(struct list_head *jobs, int (*fn) (struct kcopyd_job *))
-{
- struct kcopyd_job *job;
- int r, count = 0;
-
- while ((job = pop(jobs))) {
-
- r = fn(job);
-
- if (r < 0) {
- /* error this rogue job */
- if (job->rw == WRITE)
- job->write_err = (unsigned int) -1;
- else
- job->read_err = 1;
- push(&_complete_jobs, job);
- break;
- }
-
- if (r > 0) {
- /*
- * We couldn't service this job ATM, so
- * push this job back onto the list.
- */
- push(jobs, job);
- break;
- }
-
- count++;
- }
-
- return count;
-}
-
-/*
- * kcopyd does this every time it's woken up.
- */
-static void do_work(void *ignored)
-{
- /*
- * The order that these are called is *very* important.
- * complete jobs can free some pages for pages jobs.
- * Pages jobs when successful will jump onto the io jobs
- * list. io jobs call wake when they complete and it all
- * starts again.
- */
- process_jobs(&_complete_jobs, run_complete_job);
- process_jobs(&_pages_jobs, run_pages_job);
- process_jobs(&_io_jobs, run_io_job);
-}
-
-/*
- * If we are copying a small region we just dispatch a single job
- * to do the copy, otherwise the io has to be split up into many
- * jobs.
- */
-static void dispatch_job(struct kcopyd_job *job)
-{
- push(&_pages_jobs, job);
- wake();
-}
-
-#define SUB_JOB_SIZE 128
-static void segment_complete(int read_err,
- unsigned int write_err, void *context)
-{
- /* FIXME: tidy this function */
- sector_t progress = 0;
- sector_t count = 0;
- struct kcopyd_job *job = (struct kcopyd_job *) context;
-
- down(&job->lock);
-
- /* update the error */
- if (read_err)
- job->read_err = 1;
-
- if (write_err)
- job->write_err &= write_err;
-
- /*
- * Only dispatch more work if there hasn't been an error.
- */
- if ((!job->read_err && !job->write_err) ||
- test_bit(KCOPYD_IGNORE_ERROR, &job->flags)) {
- /* get the next chunk of work */
- progress = job->progress;
- count = job->source.count - progress;
- if (count) {
- if (count > SUB_JOB_SIZE)
- count = SUB_JOB_SIZE;
-
- job->progress += count;
- }
- }
- up(&job->lock);
-
- if (count) {
- int i;
- struct kcopyd_job *sub_job = mempool_alloc(_job_pool, GFP_NOIO);
-
- *sub_job = *job;
- sub_job->source.sector += progress;
- sub_job->source.count = count;
-
- for (i = 0; i < job->num_dests; i++) {
- sub_job->dests[i].sector += progress;
- sub_job->dests[i].count = count;
- }
-
- sub_job->fn = segment_complete;
- sub_job->context = job;
- dispatch_job(sub_job);
-
- } else if (atomic_dec_and_test(&job->sub_jobs)) {
-
- /*
- * To avoid a race we must keep the job around
- * until after the notify function has completed.
- * Otherwise the client may try and stop the job
- * after we've completed.
- */
- job->fn(read_err, write_err, job->context);
- mempool_free(job, _job_pool);
- }
-}
-
-/*
- * Create some little jobs that will do the move between
- * them.
- */
-#define SPLIT_COUNT 8
-static void split_job(struct kcopyd_job *job)
-{
- int i;
-
- atomic_set(&job->sub_jobs, SPLIT_COUNT);
- for (i = 0; i < SPLIT_COUNT; i++)
- segment_complete(0, 0u, job);
-}
-
-int kcopyd_copy(struct kcopyd_client *kc, struct io_region *from,
- unsigned int num_dests, struct io_region *dests,
- unsigned int flags, kcopyd_notify_fn fn, void *context)
-{
- struct kcopyd_job *job;
-
- /*
- * Allocate a new job.
- */
- job = mempool_alloc(_job_pool, GFP_NOIO);
-
- /*
- * set up for the read.
- */
- job->kc = kc;
- job->flags = flags;
- job->read_err = 0;
- job->write_err = 0;
- job->rw = READ;
-
- job->source = *from;
-
- job->num_dests = num_dests;
- memcpy(&job->dests, dests, sizeof(*dests) * num_dests);
-
- job->offset = 0;
- job->nr_pages = 0;
- job->pages = NULL;
-
- job->fn = fn;
- job->context = context;
-
- if (job->source.count < SUB_JOB_SIZE)
- dispatch_job(job);
-
- else {
- init_MUTEX(&job->lock);
- job->progress = 0;
- split_job(job);
- }
-
- return 0;
-}
-
-/*
- * Cancels a kcopyd job, eg. someone might be deactivating a
- * mirror.
- */
-int kcopyd_cancel(struct kcopyd_job *job, int block)
-{
- /* FIXME: finish */
- return -1;
-}
-
-/*-----------------------------------------------------------------
- * Unit setup
- *---------------------------------------------------------------*/
-static DECLARE_MUTEX(_client_lock);
-static LIST_HEAD(_clients);
-
-static int client_add(struct kcopyd_client *kc)
-{
- down(&_client_lock);
- list_add(&kc->list, &_clients);
- up(&_client_lock);
- return 0;
-}
-
-static void client_del(struct kcopyd_client *kc)
-{
- down(&_client_lock);
- list_del(&kc->list);
- up(&_client_lock);
-}
-
-static DECLARE_MUTEX(kcopyd_init_lock);
-static int kcopyd_clients = 0;
-
-static int kcopyd_init(void)
-{
- int r;
-
- down(&kcopyd_init_lock);
-
- if (kcopyd_clients) {
- /* Already initialized. */
- kcopyd_clients++;
- up(&kcopyd_init_lock);
- return 0;
- }
-
- r = jobs_init();
- if (r) {
- up(&kcopyd_init_lock);
- return r;
- }
-
- _kcopyd_wq = create_singlethread_workqueue("kcopyd");
- if (!_kcopyd_wq) {
- jobs_exit();
- up(&kcopyd_init_lock);
- return -ENOMEM;
- }
-
- kcopyd_clients++;
- INIT_WORK(&_kcopyd_work, do_work, NULL);
- up(&kcopyd_init_lock);
- return 0;
-}
-
-static void kcopyd_exit(void)
-{
- down(&kcopyd_init_lock);
- kcopyd_clients--;
- if (!kcopyd_clients) {
- jobs_exit();
- destroy_workqueue(_kcopyd_wq);
- _kcopyd_wq = NULL;
- }
- up(&kcopyd_init_lock);
-}
-
-int kcopyd_client_create(unsigned int nr_pages, struct kcopyd_client **result)
-{
- int r = 0;
- struct kcopyd_client *kc;
-
- r = kcopyd_init();
- if (r)
- return r;
-
- kc = kmalloc(sizeof(*kc), GFP_KERNEL);
- if (!kc) {
- kcopyd_exit();
- return -ENOMEM;
- }
-
- kc->lock = SPIN_LOCK_UNLOCKED;
- kc->pages = NULL;
- kc->nr_pages = kc->nr_free_pages = 0;
- r = client_alloc_pages(kc, nr_pages);
- if (r) {
- kfree(kc);
- kcopyd_exit();
- return r;
- }
-
- r = dm_io_get(nr_pages);
- if (r) {
- client_free_pages(kc);
- kfree(kc);
- kcopyd_exit();
- return r;
- }
-
- r = client_add(kc);
- if (r) {
- dm_io_put(nr_pages);
- client_free_pages(kc);
- kfree(kc);
- kcopyd_exit();
- return r;
- }
-
- *result = kc;
- return 0;
-}
-
-void kcopyd_client_destroy(struct kcopyd_client *kc)
-{
- dm_io_put(kc->nr_pages);
- client_free_pages(kc);
- client_del(kc);
- kfree(kc);
- kcopyd_exit();
-}
-
-EXPORT_SYMBOL(kcopyd_client_create);
-EXPORT_SYMBOL(kcopyd_client_destroy);
-EXPORT_SYMBOL(kcopyd_copy);
-EXPORT_SYMBOL(kcopyd_cancel);
+++ /dev/null
-/*
- * Copyright (C) 2001 Sistina Software
- *
- * This file is released under the GPL.
- *
- * Kcopyd provides a simple interface for copying an area of one
- * block-device to one or more other block-devices, with an asynchronous
- * completion notification.
- */
-
-#ifndef DM_KCOPYD_H
-#define DM_KCOPYD_H
-
-#include "dm-io.h"
-
-/* FIXME: make this configurable */
-#define KCOPYD_MAX_REGIONS 8
-
-#define KCOPYD_IGNORE_ERROR 1
-
-/*
- * To use kcopyd you must first create a kcopyd client object.
- */
-struct kcopyd_client;
-int kcopyd_client_create(unsigned int num_pages, struct kcopyd_client **result);
-void kcopyd_client_destroy(struct kcopyd_client *kc);
-
-/*
- * Submit a copy job to kcopyd. This is built on top of the
- * previous three fns.
- *
- * read_err is a boolean,
- * write_err is a bitset, with 1 bit for each destination region
- */
-typedef void (*kcopyd_notify_fn)(int read_err,
- unsigned int write_err, void *context);
-
-int kcopyd_copy(struct kcopyd_client *kc, struct io_region *from,
- unsigned int num_dests, struct io_region *dests,
- unsigned int flags, kcopyd_notify_fn fn, void *context);
-
-#endif
+++ /dev/null
-ovcamchip-objs := ovcamchip_core.o ov6x20.o ov6x30.o ov7x10.o ov7x20.o \
- ov76be.o
-
-obj-$(CONFIG_VIDEO_OVCAMCHIP) += ovcamchip.o
+++ /dev/null
-/* OmniVision OV6620/OV6120 Camera Chip Support Code
- *
- * Copyright (c) 1999-2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. NO WARRANTY OF ANY KIND is expressed or implied.
- */
-
-#define DEBUG
-
-#include <linux/slab.h>
-#include "ovcamchip_priv.h"
-
-/* Registers */
-#define REG_GAIN 0x00 /* gain [5:0] */
-#define REG_BLUE 0x01 /* blue gain */
-#define REG_RED 0x02 /* red gain */
-#define REG_SAT 0x03 /* saturation */
-#define REG_CNT 0x05 /* Y contrast */
-#define REG_BRT 0x06 /* Y brightness */
-#define REG_WB_BLUE 0x0C /* WB blue ratio [5:0] */
-#define REG_WB_RED 0x0D /* WB red ratio [5:0] */
-#define REG_EXP 0x10 /* exposure */
-
-/* Window parameters */
-#define HWSBASE 0x38
-#define HWEBASE 0x3A
-#define VWSBASE 0x05
-#define VWEBASE 0x06
-
-struct ov6x20 {
- int auto_brt;
- int auto_exp;
- int backlight;
- int bandfilt;
- int mirror;
-};
-
-/* Initial values for use with OV511/OV511+ cameras */
-static struct ovcamchip_regvals regvals_init_6x20_511[] = {
- { 0x12, 0x80 }, /* reset */
- { 0x11, 0x01 },
- { 0x03, 0x60 },
- { 0x05, 0x7f }, /* For when autoadjust is off */
- { 0x07, 0xa8 },
- { 0x0c, 0x24 },
- { 0x0d, 0x24 },
- { 0x0f, 0x15 }, /* COMS */
- { 0x10, 0x75 }, /* AEC Exposure time */
- { 0x12, 0x24 }, /* Enable AGC and AWB */
- { 0x14, 0x04 },
- { 0x16, 0x03 },
- { 0x26, 0xb2 }, /* BLC enable */
- /* 0x28: 0x05 Selects RGB format if RGB on */
- { 0x28, 0x05 },
- { 0x2a, 0x04 }, /* Disable framerate adjust */
- { 0x2d, 0x99 },
- { 0x33, 0xa0 }, /* Color Processing Parameter */
- { 0x34, 0xd2 }, /* Max A/D range */
- { 0x38, 0x8b },
- { 0x39, 0x40 },
-
- { 0x3c, 0x39 }, /* Enable AEC mode changing */
- { 0x3c, 0x3c }, /* Change AEC mode */
- { 0x3c, 0x24 }, /* Disable AEC mode changing */
-
- { 0x3d, 0x80 },
- /* These next two registers (0x4a, 0x4b) are undocumented. They
- * control the color balance */
- { 0x4a, 0x80 },
- { 0x4b, 0x80 },
- { 0x4d, 0xd2 }, /* This reduces noise a bit */
- { 0x4e, 0xc1 },
- { 0x4f, 0x04 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* Initial values for use with OV518 cameras */
-static struct ovcamchip_regvals regvals_init_6x20_518[] = {
- { 0x12, 0x80 }, /* Do a reset */
- { 0x03, 0xc0 }, /* Saturation */
- { 0x05, 0x8a }, /* Contrast */
- { 0x0c, 0x24 }, /* AWB blue */
- { 0x0d, 0x24 }, /* AWB red */
- { 0x0e, 0x8d }, /* Additional 2x gain */
- { 0x0f, 0x25 }, /* Black expanding level = 1.3V */
- { 0x11, 0x01 }, /* Clock div. */
- { 0x12, 0x24 }, /* Enable AGC and AWB */
- { 0x13, 0x01 }, /* (default) */
- { 0x14, 0x80 }, /* Set reserved bit 7 */
- { 0x15, 0x01 }, /* (default) */
- { 0x16, 0x03 }, /* (default) */
- { 0x17, 0x38 }, /* (default) */
- { 0x18, 0xea }, /* (default) */
- { 0x19, 0x04 },
- { 0x1a, 0x93 },
- { 0x1b, 0x00 }, /* (default) */
- { 0x1e, 0xc4 }, /* (default) */
- { 0x1f, 0x04 }, /* (default) */
- { 0x20, 0x20 }, /* Enable 1st stage aperture correction */
- { 0x21, 0x10 }, /* Y offset */
- { 0x22, 0x88 }, /* U offset */
- { 0x23, 0xc0 }, /* Set XTAL power level */
- { 0x24, 0x53 }, /* AEC bright ratio */
- { 0x25, 0x7a }, /* AEC black ratio */
- { 0x26, 0xb2 }, /* BLC enable */
- { 0x27, 0xa2 }, /* Full output range */
- { 0x28, 0x01 }, /* (default) */
- { 0x29, 0x00 }, /* (default) */
- { 0x2a, 0x84 }, /* (default) */
- { 0x2b, 0xa8 }, /* Set custom frame rate */
- { 0x2c, 0xa0 }, /* (reserved) */
- { 0x2d, 0x95 }, /* Enable banding filter */
- { 0x2e, 0x88 }, /* V offset */
- { 0x33, 0x22 }, /* Luminance gamma on */
- { 0x34, 0xc7 }, /* A/D bias */
- { 0x36, 0x12 }, /* (reserved) */
- { 0x37, 0x63 }, /* (reserved) */
- { 0x38, 0x8b }, /* Quick AEC/AEB */
- { 0x39, 0x00 }, /* (default) */
- { 0x3a, 0x0f }, /* (default) */
- { 0x3b, 0x3c }, /* (default) */
- { 0x3c, 0x5c }, /* AEC controls */
- { 0x3d, 0x80 }, /* Drop 1 (bad) frame when AEC change */
- { 0x3e, 0x80 }, /* (default) */
- { 0x3f, 0x02 }, /* (default) */
- { 0x40, 0x10 }, /* (reserved) */
- { 0x41, 0x10 }, /* (reserved) */
- { 0x42, 0x00 }, /* (reserved) */
- { 0x43, 0x7f }, /* (reserved) */
- { 0x44, 0x80 }, /* (reserved) */
- { 0x45, 0x1c }, /* (reserved) */
- { 0x46, 0x1c }, /* (reserved) */
- { 0x47, 0x80 }, /* (reserved) */
- { 0x48, 0x5f }, /* (reserved) */
- { 0x49, 0x00 }, /* (reserved) */
- { 0x4a, 0x00 }, /* Color balance (undocumented) */
- { 0x4b, 0x80 }, /* Color balance (undocumented) */
- { 0x4c, 0x58 }, /* (reserved) */
- { 0x4d, 0xd2 }, /* U *= .938, V *= .838 */
- { 0x4e, 0xa0 }, /* (default) */
- { 0x4f, 0x04 }, /* UV 3-point average */
- { 0x50, 0xff }, /* (reserved) */
- { 0x51, 0x58 }, /* (reserved) */
- { 0x52, 0xc0 }, /* (reserved) */
- { 0x53, 0x42 }, /* (reserved) */
- { 0x27, 0xa6 }, /* Enable manual offset adj. (reg 21 & 22) */
- { 0x12, 0x20 },
- { 0x12, 0x24 },
-
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* This initializes the OV6x20 camera chip and relevant variables. */
-static int ov6x20_init(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x20 *s;
- int rc;
-
- DDEBUG(4, &c->dev, "entered");
-
- switch (c->adapter->id) {
- case I2C_ALGO_SMBUS | I2C_HW_SMBUS_OV511:
- rc = ov_write_regvals(c, regvals_init_6x20_511);
- break;
- case I2C_ALGO_SMBUS | I2C_HW_SMBUS_OV518:
- rc = ov_write_regvals(c, regvals_init_6x20_518);
- break;
- default:
- dev_err(&c->dev, "ov6x20: Unsupported adapter\n");
- rc = -ENODEV;
- }
-
- if (rc < 0)
- return rc;
-
- ov->spriv = s = kmalloc(sizeof *s, GFP_KERNEL);
- if (!s)
- return -ENOMEM;
- memset(s, 0, sizeof *s);
-
- s->auto_brt = 1;
- s->auto_exp = 1;
-
- return rc;
-}
-
-static int ov6x20_free(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- kfree(ov->spriv);
- return 0;
-}
-
-static int ov6x20_set_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x20 *s = ov->spriv;
- int rc;
- int v = ctl->value;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_write(c, REG_CNT, v >> 8);
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_write(c, REG_BRT, v >> 8);
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_write(c, REG_SAT, v >> 8);
- break;
- case OVCAMCHIP_CID_HUE:
- rc = ov_write(c, REG_RED, 0xFF - (v >> 8));
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, REG_BLUE, v >> 8);
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_write(c, REG_EXP, v);
- break;
- case OVCAMCHIP_CID_FREQ:
- {
- int sixty = (v == 60);
-
- rc = ov_write(c, 0x2b, sixty?0xa8:0x28);
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, 0x2a, sixty?0x84:0xa4);
- break;
- }
- case OVCAMCHIP_CID_BANDFILT:
- rc = ov_write_mask(c, 0x2d, v?0x04:0x00, 0x04);
- s->bandfilt = v;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- rc = ov_write_mask(c, 0x2d, v?0x10:0x00, 0x10);
- s->auto_brt = v;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- rc = ov_write_mask(c, 0x13, v?0x01:0x00, 0x01);
- s->auto_exp = v;
- break;
- case OVCAMCHIP_CID_BACKLIGHT:
- {
- rc = ov_write_mask(c, 0x4e, v?0xe0:0xc0, 0xe0);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x29, v?0x08:0x00, 0x08);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x0e, v?0x80:0x00, 0x80);
- s->backlight = v;
- break;
- }
- case OVCAMCHIP_CID_MIRROR:
- rc = ov_write_mask(c, 0x12, v?0x40:0x00, 0x40);
- s->mirror = v;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
-out:
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, v, rc);
- return rc;
-}
-
-static int ov6x20_get_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x20 *s = ov->spriv;
- int rc = 0;
- unsigned char val = 0;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_read(c, REG_CNT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_read(c, REG_BRT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_read(c, REG_SAT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_HUE:
- rc = ov_read(c, REG_BLUE, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_read(c, REG_EXP, &val);
- ctl->value = val;
- break;
- case OVCAMCHIP_CID_BANDFILT:
- ctl->value = s->bandfilt;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- ctl->value = s->auto_brt;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- ctl->value = s->auto_exp;
- break;
- case OVCAMCHIP_CID_BACKLIGHT:
- ctl->value = s->backlight;
- break;
- case OVCAMCHIP_CID_MIRROR:
- ctl->value = s->mirror;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, ctl->value, rc);
- return rc;
-}
-
-static int ov6x20_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
-{
- /******** QCIF-specific regs ********/
-
- ov_write(c, 0x14, win->quarter?0x24:0x04);
-
- /******** Palette-specific regs ********/
-
- /* OV518 needs 8 bit multiplexed in color mode, and 16 bit in B&W */
- if (c->adapter->id == (I2C_ALGO_SMBUS | I2C_HW_SMBUS_OV518)) {
- if (win->format == VIDEO_PALETTE_GREY)
- ov_write_mask(c, 0x13, 0x00, 0x20);
- else
- ov_write_mask(c, 0x13, 0x20, 0x20);
- } else {
- if (win->format == VIDEO_PALETTE_GREY)
- ov_write_mask(c, 0x13, 0x20, 0x20);
- else
- ov_write_mask(c, 0x13, 0x00, 0x20);
- }
-
- /******** Clock programming ********/
-
- /* The OV6620 needs special handling. This prevents the
- * severe banding that normally occurs */
-
- /* Clock down */
- ov_write(c, 0x2a, 0x04);
-
- ov_write(c, 0x11, win->clockdiv);
-
- ov_write(c, 0x2a, 0x84);
- /* This next setting is critical. It seems to improve
- * the gain or the contrast. The "reserved" bits seem
- * to have some effect in this case. */
- ov_write(c, 0x2d, 0x85); /* FIXME: This messes up banding filter */
-
- return 0;
-}
-
-static int ov6x20_set_window(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int ret, hwscale, vwscale;
-
- ret = ov6x20_mode_init(c, win);
- if (ret < 0)
- return ret;
-
- if (win->quarter) {
- hwscale = 0;
- vwscale = 0;
- } else {
- hwscale = 1;
- vwscale = 1; /* The datasheet says 0; it's wrong */
- }
-
- ov_write(c, 0x17, HWSBASE + (win->x >> hwscale));
- ov_write(c, 0x18, HWEBASE + ((win->x + win->width) >> hwscale));
- ov_write(c, 0x19, VWSBASE + (win->y >> vwscale));
- ov_write(c, 0x1a, VWEBASE + ((win->y + win->height) >> vwscale));
-
- return 0;
-}
-
-static int ov6x20_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- switch (cmd) {
- case OVCAMCHIP_CMD_S_CTRL:
- return ov6x20_set_control(c, arg);
- case OVCAMCHIP_CMD_G_CTRL:
- return ov6x20_get_control(c, arg);
- case OVCAMCHIP_CMD_S_MODE:
- return ov6x20_set_window(c, arg);
- default:
- DDEBUG(2, &c->dev, "command not supported: %d", cmd);
- return -ENOIOCTLCMD;
- }
-}
-
-struct ovcamchip_ops ov6x20_ops = {
- .init = ov6x20_init,
- .free = ov6x20_free,
- .command = ov6x20_command,
-};
+++ /dev/null
-/* OmniVision OV6630/OV6130 Camera Chip Support Code
- *
- * Copyright (c) 1999-2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. NO WARRANTY OF ANY KIND is expressed or implied.
- */
-
-#define DEBUG
-
-#include <linux/slab.h>
-#include "ovcamchip_priv.h"
-
-/* Registers */
-#define REG_GAIN 0x00 /* gain [5:0] */
-#define REG_BLUE 0x01 /* blue gain */
-#define REG_RED 0x02 /* red gain */
-#define REG_SAT 0x03 /* saturation [7:3] */
-#define REG_CNT 0x05 /* Y contrast [3:0] */
-#define REG_BRT 0x06 /* Y brightness */
-#define REG_SHARP 0x07 /* sharpness */
-#define REG_WB_BLUE 0x0C /* WB blue ratio [5:0] */
-#define REG_WB_RED 0x0D /* WB red ratio [5:0] */
-#define REG_EXP 0x10 /* exposure */
-
-/* Window parameters */
-#define HWSBASE 0x38
-#define HWEBASE 0x3A
-#define VWSBASE 0x05
-#define VWEBASE 0x06
-
-struct ov6x30 {
- int auto_brt;
- int auto_exp;
- int backlight;
- int bandfilt;
- int mirror;
-};
-
-static struct ovcamchip_regvals regvals_init_6x30[] = {
- { 0x12, 0x80 }, /* reset */
- { 0x00, 0x1f }, /* Gain */
- { 0x01, 0x99 }, /* Blue gain */
- { 0x02, 0x7c }, /* Red gain */
- { 0x03, 0xc0 }, /* Saturation */
- { 0x05, 0x0a }, /* Contrast */
- { 0x06, 0x95 }, /* Brightness */
- { 0x07, 0x2d }, /* Sharpness */
- { 0x0c, 0x20 },
- { 0x0d, 0x20 },
- { 0x0e, 0x20 },
- { 0x0f, 0x05 },
- { 0x10, 0x9a }, /* "exposure check" */
- { 0x11, 0x00 }, /* Pixel clock = fastest */
- { 0x12, 0x24 }, /* Enable AGC and AWB */
- { 0x13, 0x21 },
- { 0x14, 0x80 },
- { 0x15, 0x01 },
- { 0x16, 0x03 },
- { 0x17, 0x38 },
- { 0x18, 0xea },
- { 0x19, 0x04 },
- { 0x1a, 0x93 },
- { 0x1b, 0x00 },
- { 0x1e, 0xc4 },
- { 0x1f, 0x04 },
- { 0x20, 0x20 },
- { 0x21, 0x10 },
- { 0x22, 0x88 },
- { 0x23, 0xc0 }, /* Crystal circuit power level */
- { 0x25, 0x9a }, /* Increase AEC black pixel ratio */
- { 0x26, 0xb2 }, /* BLC enable */
- { 0x27, 0xa2 },
- { 0x28, 0x00 },
- { 0x29, 0x00 },
- { 0x2a, 0x84 }, /* (keep) */
- { 0x2b, 0xa8 }, /* (keep) */
- { 0x2c, 0xa0 },
- { 0x2d, 0x95 }, /* Enable auto-brightness */
- { 0x2e, 0x88 },
- { 0x33, 0x26 },
- { 0x34, 0x03 },
- { 0x36, 0x8f },
- { 0x37, 0x80 },
- { 0x38, 0x83 },
- { 0x39, 0x80 },
- { 0x3a, 0x0f },
- { 0x3b, 0x3c },
- { 0x3c, 0x1a },
- { 0x3d, 0x80 },
- { 0x3e, 0x80 },
- { 0x3f, 0x0e },
- { 0x40, 0x00 }, /* White bal */
- { 0x41, 0x00 }, /* White bal */
- { 0x42, 0x80 },
- { 0x43, 0x3f }, /* White bal */
- { 0x44, 0x80 },
- { 0x45, 0x20 },
- { 0x46, 0x20 },
- { 0x47, 0x80 },
- { 0x48, 0x7f },
- { 0x49, 0x00 },
- { 0x4a, 0x00 },
- { 0x4b, 0x80 },
- { 0x4c, 0xd0 },
- { 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */
- { 0x4e, 0x40 },
- { 0x4f, 0x07 }, /* UV average mode, color killer: strongest */
- { 0x50, 0xff },
- { 0x54, 0x23 }, /* Max AGC gain: 18dB */
- { 0x55, 0xff },
- { 0x56, 0x12 },
- { 0x57, 0x81 }, /* (default) */
- { 0x58, 0x75 },
- { 0x59, 0x01 }, /* AGC dark current compensation: +1 */
- { 0x5a, 0x2c },
- { 0x5b, 0x0f }, /* AWB chrominance levels */
- { 0x5c, 0x10 },
- { 0x3d, 0x80 },
- { 0x27, 0xa6 },
- /* Toggle AWB off and on */
- { 0x12, 0x20 },
- { 0x12, 0x24 },
-
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* This initializes the OV6x30 camera chip and relevant variables. */
-static int ov6x30_init(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x30 *s;
- int rc;
-
- DDEBUG(4, &c->dev, "entered");
-
- rc = ov_write_regvals(c, regvals_init_6x30);
- if (rc < 0)
- return rc;
-
- ov->spriv = s = kmalloc(sizeof *s, GFP_KERNEL);
- if (!s)
- return -ENOMEM;
- memset(s, 0, sizeof *s);
-
- s->auto_brt = 1;
- s->auto_exp = 1;
-
- return rc;
-}
-
-static int ov6x30_free(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- kfree(ov->spriv);
- return 0;
-}
-
-static int ov6x30_set_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x30 *s = ov->spriv;
- int rc;
- int v = ctl->value;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_write_mask(c, REG_CNT, v >> 12, 0x0f);
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_write(c, REG_BRT, v >> 8);
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_write(c, REG_SAT, v >> 8);
- break;
- case OVCAMCHIP_CID_HUE:
- rc = ov_write(c, REG_RED, 0xFF - (v >> 8));
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, REG_BLUE, v >> 8);
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_write(c, REG_EXP, v);
- break;
- case OVCAMCHIP_CID_FREQ:
- {
- int sixty = (v == 60);
-
- rc = ov_write(c, 0x2b, sixty?0xa8:0x28);
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, 0x2a, sixty?0x84:0xa4);
- break;
- }
- case OVCAMCHIP_CID_BANDFILT:
- rc = ov_write_mask(c, 0x2d, v?0x04:0x00, 0x04);
- s->bandfilt = v;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- rc = ov_write_mask(c, 0x2d, v?0x10:0x00, 0x10);
- s->auto_brt = v;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- rc = ov_write_mask(c, 0x28, v?0x00:0x10, 0x10);
- s->auto_exp = v;
- break;
- case OVCAMCHIP_CID_BACKLIGHT:
- {
- rc = ov_write_mask(c, 0x4e, v?0x80:0x60, 0xe0);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x29, v?0x08:0x00, 0x08);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x28, v?0x02:0x00, 0x02);
- s->backlight = v;
- break;
- }
- case OVCAMCHIP_CID_MIRROR:
- rc = ov_write_mask(c, 0x12, v?0x40:0x00, 0x40);
- s->mirror = v;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
-out:
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, v, rc);
- return rc;
-}
-
-static int ov6x30_get_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov6x30 *s = ov->spriv;
- int rc = 0;
- unsigned char val = 0;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_read(c, REG_CNT, &val);
- ctl->value = (val & 0x0f) << 12;
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_read(c, REG_BRT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_read(c, REG_SAT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_HUE:
- rc = ov_read(c, REG_BLUE, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_read(c, REG_EXP, &val);
- ctl->value = val;
- break;
- case OVCAMCHIP_CID_BANDFILT:
- ctl->value = s->bandfilt;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- ctl->value = s->auto_brt;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- ctl->value = s->auto_exp;
- break;
- case OVCAMCHIP_CID_BACKLIGHT:
- ctl->value = s->backlight;
- break;
- case OVCAMCHIP_CID_MIRROR:
- ctl->value = s->mirror;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, ctl->value, rc);
- return rc;
-}
-
-static int ov6x30_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
-{
- /******** QCIF-specific regs ********/
-
- ov_write_mask(c, 0x14, win->quarter?0x20:0x00, 0x20);
-
- /******** Palette-specific regs ********/
-
- if (win->format == VIDEO_PALETTE_GREY) {
- if (c->adapter->id == (I2C_ALGO_SMBUS | I2C_HW_SMBUS_OV518)) {
- /* Do nothing - we're already in 8-bit mode */
- } else {
- ov_write_mask(c, 0x13, 0x20, 0x20);
- }
- } else {
- /* The OV518 needs special treatment. Although both the OV518
- * and the OV6630 support a 16-bit video bus, only the 8 bit Y
- * bus is actually used. The UV bus is tied to ground.
- * Therefore, the OV6630 needs to be in 8-bit multiplexed
- * output mode */
-
- if (c->adapter->id == (I2C_ALGO_SMBUS | I2C_HW_SMBUS_OV518)) {
- /* Do nothing - we want to stay in 8-bit mode */
- /* Warning: Messing with reg 0x13 breaks OV518 color */
- } else {
- ov_write_mask(c, 0x13, 0x00, 0x20);
- }
- }
-
- /******** Clock programming ********/
-
- ov_write(c, 0x11, win->clockdiv);
-
- return 0;
-}
-
-static int ov6x30_set_window(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int ret, hwscale, vwscale;
-
- ret = ov6x30_mode_init(c, win);
- if (ret < 0)
- return ret;
-
- if (win->quarter) {
- hwscale = 0;
- vwscale = 0;
- } else {
- hwscale = 1;
- vwscale = 1; /* The datasheet says 0; it's wrong */
- }
-
- ov_write(c, 0x17, HWSBASE + (win->x >> hwscale));
- ov_write(c, 0x18, HWEBASE + ((win->x + win->width) >> hwscale));
- ov_write(c, 0x19, VWSBASE + (win->y >> vwscale));
- ov_write(c, 0x1a, VWEBASE + ((win->y + win->height) >> vwscale));
-
- return 0;
-}
-
-static int ov6x30_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- switch (cmd) {
- case OVCAMCHIP_CMD_S_CTRL:
- return ov6x30_set_control(c, arg);
- case OVCAMCHIP_CMD_G_CTRL:
- return ov6x30_get_control(c, arg);
- case OVCAMCHIP_CMD_S_MODE:
- return ov6x30_set_window(c, arg);
- default:
- DDEBUG(2, &c->dev, "command not supported: %d", cmd);
- return -ENOIOCTLCMD;
- }
-}
-
-struct ovcamchip_ops ov6x30_ops = {
- .init = ov6x30_init,
- .free = ov6x30_free,
- .command = ov6x30_command,
-};
+++ /dev/null
-/* OmniVision OV76BE Camera Chip Support Code
- *
- * Copyright (c) 1999-2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. NO WARRANTY OF ANY KIND is expressed or implied.
- */
-
-#define DEBUG
-
-#include <linux/slab.h>
-#include "ovcamchip_priv.h"
-
-/* OV7610 registers: Since the OV76BE is undocumented, we'll settle for these
- * for now. */
-#define REG_GAIN 0x00 /* gain [5:0] */
-#define REG_BLUE 0x01 /* blue channel balance */
-#define REG_RED 0x02 /* red channel balance */
-#define REG_SAT 0x03 /* saturation */
-#define REG_CNT 0x05 /* Y contrast */
-#define REG_BRT 0x06 /* Y brightness */
-#define REG_BLUE_BIAS 0x0C /* blue channel bias [5:0] */
-#define REG_RED_BIAS 0x0D /* red channel bias [5:0] */
-#define REG_GAMMA_COEFF 0x0E /* gamma settings */
-#define REG_WB_RANGE 0x0F /* AEC/ALC/S-AWB settings */
-#define REG_EXP 0x10 /* manual exposure setting */
-#define REG_CLOCK 0x11 /* polarity/clock prescaler */
-#define REG_FIELD_DIVIDE 0x16 /* field interval/mode settings */
-#define REG_HWIN_START 0x17 /* horizontal window start */
-#define REG_HWIN_END 0x18 /* horizontal window end */
-#define REG_VWIN_START 0x19 /* vertical window start */
-#define REG_VWIN_END 0x1A /* vertical window end */
-#define REG_PIXEL_SHIFT 0x1B /* pixel shift */
-#define REG_YOFFSET 0x21 /* Y channel offset */
-#define REG_UOFFSET 0x22 /* U channel offset */
-#define REG_ECW 0x24 /* exposure white level for AEC */
-#define REG_ECB 0x25 /* exposure black level for AEC */
-#define REG_FRAMERATE_H 0x2A /* frame rate MSB + misc */
-#define REG_FRAMERATE_L 0x2B /* frame rate LSB */
-#define REG_ALC 0x2C /* Auto Level Control settings */
-#define REG_VOFFSET 0x2E /* V channel offset adjustment */
-#define REG_ARRAY_BIAS 0x2F /* array bias -- don't change */
-#define REG_YGAMMA 0x33 /* misc gamma settings [7:6] */
-#define REG_BIAS_ADJUST 0x34 /* misc bias settings */
-
-/* Window parameters */
-#define HWSBASE 0x38
-#define HWEBASE 0x3a
-#define VWSBASE 0x05
-#define VWEBASE 0x05
-
-struct ov76be {
- int auto_brt;
- int auto_exp;
- int bandfilt;
- int mirror;
-};
-
-/* NOTE: These are the same as the 7x10 settings, but should eventually be
- * optimized for the OV76BE */
-static struct ovcamchip_regvals regvals_init_76be[] = {
- { 0x10, 0xff },
- { 0x16, 0x03 },
- { 0x28, 0x24 },
- { 0x2b, 0xac },
- { 0x12, 0x00 },
- { 0x38, 0x81 },
- { 0x28, 0x24 }, /* 0c */
- { 0x0f, 0x85 }, /* lg's setting */
- { 0x15, 0x01 },
- { 0x20, 0x1c },
- { 0x23, 0x2a },
- { 0x24, 0x10 },
- { 0x25, 0x8a },
- { 0x26, 0xa2 },
- { 0x27, 0xc2 },
- { 0x2a, 0x04 },
- { 0x2c, 0xfe },
- { 0x2d, 0x93 },
- { 0x30, 0x71 },
- { 0x31, 0x60 },
- { 0x32, 0x26 },
- { 0x33, 0x20 },
- { 0x34, 0x48 },
- { 0x12, 0x24 },
- { 0x11, 0x01 },
- { 0x0c, 0x24 },
- { 0x0d, 0x24 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* This initializes the OV76be camera chip and relevant variables. */
-static int ov76be_init(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov76be *s;
- int rc;
-
- DDEBUG(4, &c->dev, "entered");
-
- rc = ov_write_regvals(c, regvals_init_76be);
- if (rc < 0)
- return rc;
-
- ov->spriv = s = kmalloc(sizeof *s, GFP_KERNEL);
- if (!s)
- return -ENOMEM;
- memset(s, 0, sizeof *s);
-
- s->auto_brt = 1;
- s->auto_exp = 1;
-
- return rc;
-}
-
-static int ov76be_free(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- kfree(ov->spriv);
- return 0;
-}
-
-static int ov76be_set_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov76be *s = ov->spriv;
- int rc;
- int v = ctl->value;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_write(c, REG_BRT, v >> 8);
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_write(c, REG_SAT, v >> 8);
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_write(c, REG_EXP, v);
- break;
- case OVCAMCHIP_CID_FREQ:
- {
- int sixty = (v == 60);
-
- rc = ov_write_mask(c, 0x2a, sixty?0x00:0x80, 0x80);
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, 0x2b, sixty?0x00:0xac);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x76, 0x01, 0x01);
- break;
- }
- case OVCAMCHIP_CID_BANDFILT:
- rc = ov_write_mask(c, 0x2d, v?0x04:0x00, 0x04);
- s->bandfilt = v;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- rc = ov_write_mask(c, 0x2d, v?0x10:0x00, 0x10);
- s->auto_brt = v;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- rc = ov_write_mask(c, 0x13, v?0x01:0x00, 0x01);
- s->auto_exp = v;
- break;
- case OVCAMCHIP_CID_MIRROR:
- rc = ov_write_mask(c, 0x12, v?0x40:0x00, 0x40);
- s->mirror = v;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
-out:
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, v, rc);
- return rc;
-}
-
-static int ov76be_get_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov76be *s = ov->spriv;
- int rc = 0;
- unsigned char val = 0;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_read(c, REG_BRT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_read(c, REG_SAT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_read(c, REG_EXP, &val);
- ctl->value = val;
- break;
- case OVCAMCHIP_CID_BANDFILT:
- ctl->value = s->bandfilt;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- ctl->value = s->auto_brt;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- ctl->value = s->auto_exp;
- break;
- case OVCAMCHIP_CID_MIRROR:
- ctl->value = s->mirror;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, ctl->value, rc);
- return rc;
-}
-
-static int ov76be_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int qvga = win->quarter;
-
- /******** QVGA-specific regs ********/
-
- ov_write(c, 0x14, qvga?0xa4:0x84);
-
- /******** Palette-specific regs ********/
-
- if (win->format == VIDEO_PALETTE_GREY) {
- ov_write_mask(c, 0x0e, 0x40, 0x40);
- ov_write_mask(c, 0x13, 0x20, 0x20);
- } else {
- ov_write_mask(c, 0x0e, 0x00, 0x40);
- ov_write_mask(c, 0x13, 0x00, 0x20);
- }
-
- /******** Clock programming ********/
-
- ov_write(c, 0x11, win->clockdiv);
-
- /******** Resolution-specific ********/
-
- if (win->width == 640 && win->height == 480)
- ov_write(c, 0x35, 0x9e);
- else
- ov_write(c, 0x35, 0x1e);
-
- return 0;
-}
-
-static int ov76be_set_window(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int ret, hwscale, vwscale;
-
- ret = ov76be_mode_init(c, win);
- if (ret < 0)
- return ret;
-
- if (win->quarter) {
- hwscale = 1;
- vwscale = 0;
- } else {
- hwscale = 2;
- vwscale = 1;
- }
-
- ov_write(c, 0x17, HWSBASE + (win->x >> hwscale));
- ov_write(c, 0x18, HWEBASE + ((win->x + win->width) >> hwscale));
- ov_write(c, 0x19, VWSBASE + (win->y >> vwscale));
- ov_write(c, 0x1a, VWEBASE + ((win->y + win->height) >> vwscale));
-
- return 0;
-}
-
-static int ov76be_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- switch (cmd) {
- case OVCAMCHIP_CMD_S_CTRL:
- return ov76be_set_control(c, arg);
- case OVCAMCHIP_CMD_G_CTRL:
- return ov76be_get_control(c, arg);
- case OVCAMCHIP_CMD_S_MODE:
- return ov76be_set_window(c, arg);
- default:
- DDEBUG(2, &c->dev, "command not supported: %d", cmd);
- return -ENOIOCTLCMD;
- }
-}
-
-struct ovcamchip_ops ov76be_ops = {
- .init = ov76be_init,
- .free = ov76be_free,
- .command = ov76be_command,
-};
+++ /dev/null
-/* OmniVision OV7610/OV7110 Camera Chip Support Code
- *
- * Copyright (c) 1999-2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * Color fixes by by Orion Sky Lawlor <olawlor@acm.org> (2/26/2000)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. NO WARRANTY OF ANY KIND is expressed or implied.
- */
-
-#define DEBUG
-
-#include <linux/slab.h>
-#include "ovcamchip_priv.h"
-
-/* Registers */
-#define REG_GAIN 0x00 /* gain [5:0] */
-#define REG_BLUE 0x01 /* blue channel balance */
-#define REG_RED 0x02 /* red channel balance */
-#define REG_SAT 0x03 /* saturation */
-#define REG_CNT 0x05 /* Y contrast */
-#define REG_BRT 0x06 /* Y brightness */
-#define REG_BLUE_BIAS 0x0C /* blue channel bias [5:0] */
-#define REG_RED_BIAS 0x0D /* red channel bias [5:0] */
-#define REG_GAMMA_COEFF 0x0E /* gamma settings */
-#define REG_WB_RANGE 0x0F /* AEC/ALC/S-AWB settings */
-#define REG_EXP 0x10 /* manual exposure setting */
-#define REG_CLOCK 0x11 /* polarity/clock prescaler */
-#define REG_FIELD_DIVIDE 0x16 /* field interval/mode settings */
-#define REG_HWIN_START 0x17 /* horizontal window start */
-#define REG_HWIN_END 0x18 /* horizontal window end */
-#define REG_VWIN_START 0x19 /* vertical window start */
-#define REG_VWIN_END 0x1A /* vertical window end */
-#define REG_PIXEL_SHIFT 0x1B /* pixel shift */
-#define REG_YOFFSET 0x21 /* Y channel offset */
-#define REG_UOFFSET 0x22 /* U channel offset */
-#define REG_ECW 0x24 /* exposure white level for AEC */
-#define REG_ECB 0x25 /* exposure black level for AEC */
-#define REG_FRAMERATE_H 0x2A /* frame rate MSB + misc */
-#define REG_FRAMERATE_L 0x2B /* frame rate LSB */
-#define REG_ALC 0x2C /* Auto Level Control settings */
-#define REG_VOFFSET 0x2E /* V channel offset adjustment */
-#define REG_ARRAY_BIAS 0x2F /* array bias -- don't change */
-#define REG_YGAMMA 0x33 /* misc gamma settings [7:6] */
-#define REG_BIAS_ADJUST 0x34 /* misc bias settings */
-
-/* Window parameters */
-#define HWSBASE 0x38
-#define HWEBASE 0x3a
-#define VWSBASE 0x05
-#define VWEBASE 0x05
-
-struct ov7x10 {
- int auto_brt;
- int auto_exp;
- int bandfilt;
- int mirror;
-};
-
-/* Lawrence Glaister <lg@jfm.bc.ca> reports:
- *
- * Register 0x0f in the 7610 has the following effects:
- *
- * 0x85 (AEC method 1): Best overall, good contrast range
- * 0x45 (AEC method 2): Very overexposed
- * 0xa5 (spec sheet default): Ok, but the black level is
- * shifted resulting in loss of contrast
- * 0x05 (old driver setting): very overexposed, too much
- * contrast
- */
-static struct ovcamchip_regvals regvals_init_7x10[] = {
- { 0x10, 0xff },
- { 0x16, 0x03 },
- { 0x28, 0x24 },
- { 0x2b, 0xac },
- { 0x12, 0x00 },
- { 0x38, 0x81 },
- { 0x28, 0x24 }, /* 0c */
- { 0x0f, 0x85 }, /* lg's setting */
- { 0x15, 0x01 },
- { 0x20, 0x1c },
- { 0x23, 0x2a },
- { 0x24, 0x10 },
- { 0x25, 0x8a },
- { 0x26, 0xa2 },
- { 0x27, 0xc2 },
- { 0x2a, 0x04 },
- { 0x2c, 0xfe },
- { 0x2d, 0x93 },
- { 0x30, 0x71 },
- { 0x31, 0x60 },
- { 0x32, 0x26 },
- { 0x33, 0x20 },
- { 0x34, 0x48 },
- { 0x12, 0x24 },
- { 0x11, 0x01 },
- { 0x0c, 0x24 },
- { 0x0d, 0x24 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* This initializes the OV7x10 camera chip and relevant variables. */
-static int ov7x10_init(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x10 *s;
- int rc;
-
- DDEBUG(4, &c->dev, "entered");
-
- rc = ov_write_regvals(c, regvals_init_7x10);
- if (rc < 0)
- return rc;
-
- ov->spriv = s = kmalloc(sizeof *s, GFP_KERNEL);
- if (!s)
- return -ENOMEM;
- memset(s, 0, sizeof *s);
-
- s->auto_brt = 1;
- s->auto_exp = 1;
-
- return rc;
-}
-
-static int ov7x10_free(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- kfree(ov->spriv);
- return 0;
-}
-
-static int ov7x10_set_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x10 *s = ov->spriv;
- int rc;
- int v = ctl->value;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_write(c, REG_CNT, v >> 8);
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_write(c, REG_BRT, v >> 8);
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_write(c, REG_SAT, v >> 8);
- break;
- case OVCAMCHIP_CID_HUE:
- rc = ov_write(c, REG_RED, 0xFF - (v >> 8));
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, REG_BLUE, v >> 8);
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_write(c, REG_EXP, v);
- break;
- case OVCAMCHIP_CID_FREQ:
- {
- int sixty = (v == 60);
-
- rc = ov_write_mask(c, 0x2a, sixty?0x00:0x80, 0x80);
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, 0x2b, sixty?0x00:0xac);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x13, 0x10, 0x10);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x13, 0x00, 0x10);
- break;
- }
- case OVCAMCHIP_CID_BANDFILT:
- rc = ov_write_mask(c, 0x2d, v?0x04:0x00, 0x04);
- s->bandfilt = v;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- rc = ov_write_mask(c, 0x2d, v?0x10:0x00, 0x10);
- s->auto_brt = v;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- rc = ov_write_mask(c, 0x29, v?0x00:0x80, 0x80);
- s->auto_exp = v;
- break;
- case OVCAMCHIP_CID_MIRROR:
- rc = ov_write_mask(c, 0x12, v?0x40:0x00, 0x40);
- s->mirror = v;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
-out:
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, v, rc);
- return rc;
-}
-
-static int ov7x10_get_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x10 *s = ov->spriv;
- int rc = 0;
- unsigned char val = 0;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_read(c, REG_CNT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_read(c, REG_BRT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_read(c, REG_SAT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_HUE:
- rc = ov_read(c, REG_BLUE, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_read(c, REG_EXP, &val);
- ctl->value = val;
- break;
- case OVCAMCHIP_CID_BANDFILT:
- ctl->value = s->bandfilt;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- ctl->value = s->auto_brt;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- ctl->value = s->auto_exp;
- break;
- case OVCAMCHIP_CID_MIRROR:
- ctl->value = s->mirror;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, ctl->value, rc);
- return rc;
-}
-
-static int ov7x10_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int qvga = win->quarter;
-
- /******** QVGA-specific regs ********/
-
- ov_write(c, 0x14, qvga?0x24:0x04);
-
- /******** Palette-specific regs ********/
-
- if (win->format == VIDEO_PALETTE_GREY) {
- ov_write_mask(c, 0x0e, 0x40, 0x40);
- ov_write_mask(c, 0x13, 0x20, 0x20);
- } else {
- ov_write_mask(c, 0x0e, 0x00, 0x40);
- ov_write_mask(c, 0x13, 0x00, 0x20);
- }
-
- /******** Clock programming ********/
-
- ov_write(c, 0x11, win->clockdiv);
-
- /******** Resolution-specific ********/
-
- if (win->width == 640 && win->height == 480)
- ov_write(c, 0x35, 0x9e);
- else
- ov_write(c, 0x35, 0x1e);
-
- return 0;
-}
-
-static int ov7x10_set_window(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int ret, hwscale, vwscale;
-
- ret = ov7x10_mode_init(c, win);
- if (ret < 0)
- return ret;
-
- if (win->quarter) {
- hwscale = 1;
- vwscale = 0;
- } else {
- hwscale = 2;
- vwscale = 1;
- }
-
- ov_write(c, 0x17, HWSBASE + (win->x >> hwscale));
- ov_write(c, 0x18, HWEBASE + ((win->x + win->width) >> hwscale));
- ov_write(c, 0x19, VWSBASE + (win->y >> vwscale));
- ov_write(c, 0x1a, VWEBASE + ((win->y + win->height) >> vwscale));
-
- return 0;
-}
-
-static int ov7x10_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- switch (cmd) {
- case OVCAMCHIP_CMD_S_CTRL:
- return ov7x10_set_control(c, arg);
- case OVCAMCHIP_CMD_G_CTRL:
- return ov7x10_get_control(c, arg);
- case OVCAMCHIP_CMD_S_MODE:
- return ov7x10_set_window(c, arg);
- default:
- DDEBUG(2, &c->dev, "command not supported: %d", cmd);
- return -ENOIOCTLCMD;
- }
-}
-
-struct ovcamchip_ops ov7x10_ops = {
- .init = ov7x10_init,
- .free = ov7x10_free,
- .command = ov7x10_command,
-};
+++ /dev/null
-/* OmniVision OV7620/OV7120 Camera Chip Support Code
- *
- * Copyright (c) 1999-2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * OV7620 fixes by Charl P. Botha <cpbotha@ieee.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. NO WARRANTY OF ANY KIND is expressed or implied.
- */
-
-#define DEBUG
-
-#include <linux/slab.h>
-#include "ovcamchip_priv.h"
-
-/* Registers */
-#define REG_GAIN 0x00 /* gain [5:0] */
-#define REG_BLUE 0x01 /* blue gain */
-#define REG_RED 0x02 /* red gain */
-#define REG_SAT 0x03 /* saturation */
-#define REG_BRT 0x06 /* Y brightness */
-#define REG_SHARP 0x07 /* analog sharpness */
-#define REG_BLUE_BIAS 0x0C /* WB blue ratio [5:0] */
-#define REG_RED_BIAS 0x0D /* WB red ratio [5:0] */
-#define REG_EXP 0x10 /* exposure */
-
-/* Default control settings. Values are in terms of V4L2 controls. */
-#define OV7120_DFL_BRIGHT 0x60
-#define OV7620_DFL_BRIGHT 0x60
-#define OV7120_DFL_SAT 0xb0
-#define OV7620_DFL_SAT 0xc0
-#define DFL_AUTO_EXP 1
-#define DFL_AUTO_GAIN 1
-#define OV7120_DFL_GAIN 0x00
-#define OV7620_DFL_GAIN 0x00
-/* NOTE: Since autoexposure is the default, these aren't programmed into the
- * OV7x20 chip. They are just here because V4L2 expects a default */
-#define OV7120_DFL_EXP 0x7f
-#define OV7620_DFL_EXP 0x7f
-
-/* Window parameters */
-#define HWSBASE 0x2F /* From 7620.SET (spec is wrong) */
-#define HWEBASE 0x2F
-#define VWSBASE 0x05
-#define VWEBASE 0x05
-
-struct ov7x20 {
- int auto_brt;
- int auto_exp;
- int auto_gain;
- int backlight;
- int bandfilt;
- int mirror;
-};
-
-/* Contrast look-up table */
-static unsigned char ctab[] = {
- 0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57,
- 0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff
-};
-
-/* Settings for (Black & White) OV7120 camera chip */
-static struct ovcamchip_regvals regvals_init_7120[] = {
- { 0x12, 0x80 }, /* reset */
- { 0x13, 0x00 }, /* Autoadjust off */
- { 0x12, 0x20 }, /* Disable AWB */
- { 0x13, DFL_AUTO_GAIN?0x01:0x00 }, /* Autoadjust on (if desired) */
- { 0x00, OV7120_DFL_GAIN },
- { 0x01, 0x80 },
- { 0x02, 0x80 },
- { 0x03, OV7120_DFL_SAT },
- { 0x06, OV7120_DFL_BRIGHT },
- { 0x07, 0x00 },
- { 0x0c, 0x20 },
- { 0x0d, 0x20 },
- { 0x11, 0x01 },
- { 0x14, 0x84 },
- { 0x15, 0x01 },
- { 0x16, 0x03 },
- { 0x17, 0x2f },
- { 0x18, 0xcf },
- { 0x19, 0x06 },
- { 0x1a, 0xf5 },
- { 0x1b, 0x00 },
- { 0x20, 0x08 },
- { 0x21, 0x80 },
- { 0x22, 0x80 },
- { 0x23, 0x00 },
- { 0x26, 0xa0 },
- { 0x27, 0xfa },
- { 0x28, 0x20 }, /* DON'T set bit 6. It is for the OV7620 only */
- { 0x29, DFL_AUTO_EXP?0x00:0x80 },
- { 0x2a, 0x10 },
- { 0x2b, 0x00 },
- { 0x2c, 0x88 },
- { 0x2d, 0x95 },
- { 0x2e, 0x80 },
- { 0x2f, 0x44 },
- { 0x60, 0x20 },
- { 0x61, 0x02 },
- { 0x62, 0x5f },
- { 0x63, 0xd5 },
- { 0x64, 0x57 },
- { 0x65, 0x83 }, /* OV says "don't change this value" */
- { 0x66, 0x55 },
- { 0x67, 0x92 },
- { 0x68, 0xcf },
- { 0x69, 0x76 },
- { 0x6a, 0x22 },
- { 0x6b, 0xe2 },
- { 0x6c, 0x40 },
- { 0x6d, 0x48 },
- { 0x6e, 0x80 },
- { 0x6f, 0x0d },
- { 0x70, 0x89 },
- { 0x71, 0x00 },
- { 0x72, 0x14 },
- { 0x73, 0x54 },
- { 0x74, 0xa0 },
- { 0x75, 0x8e },
- { 0x76, 0x00 },
- { 0x77, 0xff },
- { 0x78, 0x80 },
- { 0x79, 0x80 },
- { 0x7a, 0x80 },
- { 0x7b, 0xe6 },
- { 0x7c, 0x00 },
- { 0x24, 0x3a },
- { 0x25, 0x60 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* Settings for (color) OV7620 camera chip */
-static struct ovcamchip_regvals regvals_init_7620[] = {
- { 0x12, 0x80 }, /* reset */
- { 0x00, OV7620_DFL_GAIN },
- { 0x01, 0x80 },
- { 0x02, 0x80 },
- { 0x03, OV7620_DFL_SAT },
- { 0x06, OV7620_DFL_BRIGHT },
- { 0x07, 0x00 },
- { 0x0c, 0x24 },
- { 0x0c, 0x24 },
- { 0x0d, 0x24 },
- { 0x11, 0x01 },
- { 0x12, 0x24 },
- { 0x13, DFL_AUTO_GAIN?0x01:0x00 },
- { 0x14, 0x84 },
- { 0x15, 0x01 },
- { 0x16, 0x03 },
- { 0x17, 0x2f },
- { 0x18, 0xcf },
- { 0x19, 0x06 },
- { 0x1a, 0xf5 },
- { 0x1b, 0x00 },
- { 0x20, 0x18 },
- { 0x21, 0x80 },
- { 0x22, 0x80 },
- { 0x23, 0x00 },
- { 0x26, 0xa2 },
- { 0x27, 0xea },
- { 0x28, 0x20 },
- { 0x29, DFL_AUTO_EXP?0x00:0x80 },
- { 0x2a, 0x10 },
- { 0x2b, 0x00 },
- { 0x2c, 0x88 },
- { 0x2d, 0x91 },
- { 0x2e, 0x80 },
- { 0x2f, 0x44 },
- { 0x60, 0x27 },
- { 0x61, 0x02 },
- { 0x62, 0x5f },
- { 0x63, 0xd5 },
- { 0x64, 0x57 },
- { 0x65, 0x83 },
- { 0x66, 0x55 },
- { 0x67, 0x92 },
- { 0x68, 0xcf },
- { 0x69, 0x76 },
- { 0x6a, 0x22 },
- { 0x6b, 0x00 },
- { 0x6c, 0x02 },
- { 0x6d, 0x44 },
- { 0x6e, 0x80 },
- { 0x6f, 0x1d },
- { 0x70, 0x8b },
- { 0x71, 0x00 },
- { 0x72, 0x14 },
- { 0x73, 0x54 },
- { 0x74, 0x00 },
- { 0x75, 0x8e },
- { 0x76, 0x00 },
- { 0x77, 0xff },
- { 0x78, 0x80 },
- { 0x79, 0x80 },
- { 0x7a, 0x80 },
- { 0x7b, 0xe2 },
- { 0x7c, 0x00 },
- { 0xff, 0xff }, /* END MARKER */
-};
-
-/* Returns index into the specified look-up table, with 'n' elements, for which
- * the value is greater than or equal to "val". If a match isn't found, (n-1)
- * is returned. The entries in the table must be in ascending order. */
-static inline int ov7x20_lut_find(unsigned char lut[], int n, unsigned char val)
-{
- int i = 0;
-
- while (lut[i] < val && i < n)
- i++;
-
- return i;
-}
-
-/* This initializes the OV7x20 camera chip and relevant variables. */
-static int ov7x20_init(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x20 *s;
- int rc;
-
- DDEBUG(4, &c->dev, "entered");
-
- if (ov->mono)
- rc = ov_write_regvals(c, regvals_init_7120);
- else
- rc = ov_write_regvals(c, regvals_init_7620);
-
- if (rc < 0)
- return rc;
-
- ov->spriv = s = kmalloc(sizeof *s, GFP_KERNEL);
- if (!s)
- return -ENOMEM;
- memset(s, 0, sizeof *s);
-
- s->auto_brt = 1;
- s->auto_exp = DFL_AUTO_EXP;
- s->auto_gain = DFL_AUTO_GAIN;
-
- return 0;
-}
-
-static int ov7x20_free(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- kfree(ov->spriv);
- return 0;
-}
-
-static int ov7x20_set_v4l1_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x20 *s = ov->spriv;
- int rc;
- int v = ctl->value;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- {
- /* Use Y gamma control instead. Bit 0 enables it. */
- rc = ov_write(c, 0x64, ctab[v >> 12]);
- break;
- }
- case OVCAMCHIP_CID_BRIGHT:
- /* 7620 doesn't like manual changes when in auto mode */
- if (!s->auto_brt)
- rc = ov_write(c, REG_BRT, v >> 8);
- else
- rc = 0;
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_write(c, REG_SAT, v >> 8);
- break;
- case OVCAMCHIP_CID_EXP:
- if (!s->auto_exp)
- rc = ov_write(c, REG_EXP, v);
- else
- rc = -EBUSY;
- break;
- case OVCAMCHIP_CID_FREQ:
- {
- int sixty = (v == 60);
-
- rc = ov_write_mask(c, 0x2a, sixty?0x00:0x80, 0x80);
- if (rc < 0)
- goto out;
-
- rc = ov_write(c, 0x2b, sixty?0x00:0xac);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x76, 0x01, 0x01);
- break;
- }
- case OVCAMCHIP_CID_BANDFILT:
- rc = ov_write_mask(c, 0x2d, v?0x04:0x00, 0x04);
- s->bandfilt = v;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- rc = ov_write_mask(c, 0x2d, v?0x10:0x00, 0x10);
- s->auto_brt = v;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- rc = ov_write_mask(c, 0x13, v?0x01:0x00, 0x01);
- s->auto_exp = v;
- break;
- case OVCAMCHIP_CID_BACKLIGHT:
- {
- rc = ov_write_mask(c, 0x68, v?0xe0:0xc0, 0xe0);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x29, v?0x08:0x00, 0x08);
- if (rc < 0)
- goto out;
-
- rc = ov_write_mask(c, 0x28, v?0x02:0x00, 0x02);
- s->backlight = v;
- break;
- }
- case OVCAMCHIP_CID_MIRROR:
- rc = ov_write_mask(c, 0x12, v?0x40:0x00, 0x40);
- s->mirror = v;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
-out:
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, v, rc);
- return rc;
-}
-
-static int ov7x20_get_v4l1_control(struct i2c_client *c,
- struct ovcamchip_control *ctl)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- struct ov7x20 *s = ov->spriv;
- int rc = 0;
- unsigned char val = 0;
-
- switch (ctl->id) {
- case OVCAMCHIP_CID_CONT:
- rc = ov_read(c, 0x64, &val);
- ctl->value = ov7x20_lut_find(ctab, 16, val) << 12;
- break;
- case OVCAMCHIP_CID_BRIGHT:
- rc = ov_read(c, REG_BRT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_SAT:
- rc = ov_read(c, REG_SAT, &val);
- ctl->value = val << 8;
- break;
- case OVCAMCHIP_CID_EXP:
- rc = ov_read(c, REG_EXP, &val);
- ctl->value = val;
- break;
- case OVCAMCHIP_CID_BANDFILT:
- ctl->value = s->bandfilt;
- break;
- case OVCAMCHIP_CID_AUTOBRIGHT:
- ctl->value = s->auto_brt;
- break;
- case OVCAMCHIP_CID_AUTOEXP:
- ctl->value = s->auto_exp;
- break;
- case OVCAMCHIP_CID_BACKLIGHT:
- ctl->value = s->backlight;
- break;
- case OVCAMCHIP_CID_MIRROR:
- ctl->value = s->mirror;
- break;
- default:
- DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
- return -EPERM;
- }
-
- DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, ctl->value, rc);
- return rc;
-}
-
-static int ov7x20_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- int qvga = win->quarter;
-
- /******** QVGA-specific regs ********/
- ov_write_mask(c, 0x14, qvga?0x20:0x00, 0x20);
- ov_write_mask(c, 0x28, qvga?0x00:0x20, 0x20);
- ov_write(c, 0x24, qvga?0x20:0x3a);
- ov_write(c, 0x25, qvga?0x30:0x60);
- ov_write_mask(c, 0x2d, qvga?0x40:0x00, 0x40);
- if (!ov->mono)
- ov_write_mask(c, 0x67, qvga?0xf0:0x90, 0xf0);
- ov_write_mask(c, 0x74, qvga?0x20:0x00, 0x20);
-
- /******** Clock programming ********/
-
- ov_write(c, 0x11, win->clockdiv);
-
- return 0;
-}
-
-static int ov7x20_set_window(struct i2c_client *c, struct ovcamchip_window *win)
-{
- int ret, hwscale, vwscale;
-
- ret = ov7x20_mode_init(c, win);
- if (ret < 0)
- return ret;
-
- if (win->quarter) {
- hwscale = 1;
- vwscale = 0;
- } else {
- hwscale = 2;
- vwscale = 1;
- }
-
- ov_write(c, 0x17, HWSBASE + (win->x >> hwscale));
- ov_write(c, 0x18, HWEBASE + ((win->x + win->width) >> hwscale));
- ov_write(c, 0x19, VWSBASE + (win->y >> vwscale));
- ov_write(c, 0x1a, VWEBASE + ((win->y + win->height) >> vwscale));
-
- return 0;
-}
-
-static int ov7x20_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- switch (cmd) {
- case OVCAMCHIP_CMD_S_CTRL:
- return ov7x20_set_v4l1_control(c, arg);
- case OVCAMCHIP_CMD_G_CTRL:
- return ov7x20_get_v4l1_control(c, arg);
- case OVCAMCHIP_CMD_S_MODE:
- return ov7x20_set_window(c, arg);
- default:
- DDEBUG(2, &c->dev, "command not supported: %d", cmd);
- return -ENOIOCTLCMD;
- }
-}
-
-struct ovcamchip_ops ov7x20_ops = {
- .init = ov7x20_init,
- .free = ov7x20_free,
- .command = ov7x20_command,
-};
+++ /dev/null
-/* Shared Code for OmniVision Camera Chip Drivers
- *
- * Copyright (c) 2004 Mark McClelland <mark@alpha.dyndns.org>
- * http://alpha.dyndns.org/ov511/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. NO WARRANTY OF ANY KIND is expressed or implied.
- */
-
-#define DEBUG
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/slab.h>
-#include "ovcamchip_priv.h"
-
-#define DRIVER_VERSION "v2.27 for Linux 2.6"
-#define DRIVER_AUTHOR "Mark McClelland <mark@alpha.dyndns.org>"
-#define DRIVER_DESC "OV camera chip I2C driver"
-
-#define PINFO(fmt, args...) printk(KERN_INFO "ovcamchip: " fmt "\n" , ## args);
-#define PERROR(fmt, args...) printk(KERN_ERR "ovcamchip: " fmt "\n" , ## args);
-
-#ifdef DEBUG
-int ovcamchip_debug = 0;
-static int debug;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug,
- "Debug level: 0=none, 1=inits, 2=warning, 3=config, 4=functions, 5=all");
-#endif
-
-/* By default, let bridge driver tell us if chip is monochrome. mono=0
- * will ignore that and always treat chips as color. mono=1 will force
- * monochrome mode for all chips. */
-static int mono = -1;
-module_param(mono, int, 0);
-MODULE_PARM_DESC(mono,
- "1=chips are monochrome (OVx1xx), 0=force color, -1=autodetect (default)");
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-
-/* Registers common to all chips, that are needed for detection */
-#define GENERIC_REG_ID_HIGH 0x1C /* manufacturer ID MSB */
-#define GENERIC_REG_ID_LOW 0x1D /* manufacturer ID LSB */
-#define GENERIC_REG_COM_I 0x29 /* misc ID bits */
-
-extern struct ovcamchip_ops ov6x20_ops;
-extern struct ovcamchip_ops ov6x30_ops;
-extern struct ovcamchip_ops ov7x10_ops;
-extern struct ovcamchip_ops ov7x20_ops;
-extern struct ovcamchip_ops ov76be_ops;
-
-static char *chip_names[NUM_CC_TYPES] = {
- [CC_UNKNOWN] = "Unknown chip",
- [CC_OV76BE] = "OV76BE",
- [CC_OV7610] = "OV7610",
- [CC_OV7620] = "OV7620",
- [CC_OV7620AE] = "OV7620AE",
- [CC_OV6620] = "OV6620",
- [CC_OV6630] = "OV6630",
- [CC_OV6630AE] = "OV6630AE",
- [CC_OV6630AF] = "OV6630AF",
-};
-
-/* Forward declarations */
-static struct i2c_driver driver;
-static struct i2c_client client_template;
-
-/* ----------------------------------------------------------------------- */
-
-int ov_write_regvals(struct i2c_client *c, struct ovcamchip_regvals *rvals)
-{
- int rc;
-
- while (rvals->reg != 0xff) {
- rc = ov_write(c, rvals->reg, rvals->val);
- if (rc < 0)
- return rc;
- rvals++;
- }
-
- return 0;
-}
-
-/* Writes bits at positions specified by mask to an I2C reg. Bits that are in
- * the same position as 1's in "mask" are cleared and set to "value". Bits
- * that are in the same position as 0's in "mask" are preserved, regardless
- * of their respective state in "value".
- */
-int ov_write_mask(struct i2c_client *c,
- unsigned char reg,
- unsigned char value,
- unsigned char mask)
-{
- int rc;
- unsigned char oldval, newval;
-
- if (mask == 0xff) {
- newval = value;
- } else {
- rc = ov_read(c, reg, &oldval);
- if (rc < 0)
- return rc;
-
- oldval &= (~mask); /* Clear the masked bits */
- value &= mask; /* Enforce mask on value */
- newval = oldval | value; /* Set the desired bits */
- }
-
- return ov_write(c, reg, newval);
-}
-
-/* ----------------------------------------------------------------------- */
-
-/* Reset the chip and ensure that I2C is synchronized. Returns <0 if failure.
- */
-static int init_camchip(struct i2c_client *c)
-{
- int i, success;
- unsigned char high, low;
-
- /* Reset the chip */
- ov_write(c, 0x12, 0x80);
-
- /* Wait for it to initialize */
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1 + 150 * HZ / 1000);
-
- for (i = 0, success = 0; i < I2C_DETECT_RETRIES && !success; i++) {
- if (ov_read(c, GENERIC_REG_ID_HIGH, &high) >= 0) {
- if (ov_read(c, GENERIC_REG_ID_LOW, &low) >= 0) {
- if (high == 0x7F && low == 0xA2) {
- success = 1;
- continue;
- }
- }
- }
-
- /* Reset the chip */
- ov_write(c, 0x12, 0x80);
-
- /* Wait for it to initialize */
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1 + 150 * HZ / 1000);
-
- /* Dummy read to sync I2C */
- ov_read(c, 0x00, &low);
- }
-
- if (!success)
- return -EIO;
-
- PDEBUG(1, "I2C synced in %d attempt(s)", i);
-
- return 0;
-}
-
-/* This detects the OV7610, OV7620, or OV76BE chip. */
-static int ov7xx0_detect(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- int rc;
- unsigned char val;
-
- PDEBUG(4, "");
-
- /* Detect chip (sub)type */
- rc = ov_read(c, GENERIC_REG_COM_I, &val);
- if (rc < 0) {
- PERROR("Error detecting ov7xx0 type");
- return rc;
- }
-
- if ((val & 3) == 3) {
- PINFO("Camera chip is an OV7610");
- ov->subtype = CC_OV7610;
- } else if ((val & 3) == 1) {
- rc = ov_read(c, 0x15, &val);
- if (rc < 0) {
- PERROR("Error detecting ov7xx0 type");
- return rc;
- }
-
- if (val & 1) {
- PINFO("Camera chip is an OV7620AE");
- /* OV7620 is a close enough match for now. There are
- * some definite differences though, so this should be
- * fixed */
- ov->subtype = CC_OV7620;
- } else {
- PINFO("Camera chip is an OV76BE");
- ov->subtype = CC_OV76BE;
- }
- } else if ((val & 3) == 0) {
- PINFO("Camera chip is an OV7620");
- ov->subtype = CC_OV7620;
- } else {
- PERROR("Unknown camera chip version: %d", val & 3);
- return -ENOSYS;
- }
-
- if (ov->subtype == CC_OV76BE)
- ov->sops = &ov76be_ops;
- else if (ov->subtype == CC_OV7620)
- ov->sops = &ov7x20_ops;
- else
- ov->sops = &ov7x10_ops;
-
- return 0;
-}
-
-/* This detects the OV6620, OV6630, OV6630AE, or OV6630AF chip. */
-static int ov6xx0_detect(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- int rc;
- unsigned char val;
-
- PDEBUG(4, "");
-
- /* Detect chip (sub)type */
- rc = ov_read(c, GENERIC_REG_COM_I, &val);
- if (rc < 0) {
- PERROR("Error detecting ov6xx0 type");
- return -1;
- }
-
- if ((val & 3) == 0) {
- ov->subtype = CC_OV6630;
- PINFO("Camera chip is an OV6630");
- } else if ((val & 3) == 1) {
- ov->subtype = CC_OV6620;
- PINFO("Camera chip is an OV6620");
- } else if ((val & 3) == 2) {
- ov->subtype = CC_OV6630;
- PINFO("Camera chip is an OV6630AE");
- } else if ((val & 3) == 3) {
- ov->subtype = CC_OV6630;
- PINFO("Camera chip is an OV6630AF");
- }
-
- if (ov->subtype == CC_OV6620)
- ov->sops = &ov6x20_ops;
- else
- ov->sops = &ov6x30_ops;
-
- return 0;
-}
-
-static int ovcamchip_detect(struct i2c_client *c)
-{
- /* Ideally we would just try a single register write and see if it NAKs.
- * That isn't possible since the OV518 can't report I2C transaction
- * failures. So, we have to try to initialize the chip (i.e. reset it
- * and check the ID registers) to detect its presence. */
-
- /* Test for 7xx0 */
- PDEBUG(3, "Testing for 0V7xx0");
- c->addr = OV7xx0_SID;
- if (init_camchip(c) < 0) {
- /* Test for 6xx0 */
- PDEBUG(3, "Testing for 0V6xx0");
- c->addr = OV6xx0_SID;
- if (init_camchip(c) < 0) {
- return -ENODEV;
- } else {
- if (ov6xx0_detect(c) < 0) {
- PERROR("Failed to init OV6xx0");
- return -EIO;
- }
- }
- } else {
- if (ov7xx0_detect(c) < 0) {
- PERROR("Failed to init OV7xx0");
- return -EIO;
- }
- }
-
- return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int ovcamchip_attach(struct i2c_adapter *adap)
-{
- int rc = 0;
- struct ovcamchip *ov;
- struct i2c_client *c;
-
- /* I2C is not a PnP bus, so we can never be certain that we're talking
- * to the right chip. To prevent damage to EEPROMS and such, only
- * attach to adapters that are known to contain OV camera chips. */
-
- switch (adap->id) {
- case (I2C_ALGO_SMBUS | I2C_HW_SMBUS_OV511):
- case (I2C_ALGO_SMBUS | I2C_HW_SMBUS_OV518):
- case (I2C_ALGO_SMBUS | I2C_HW_SMBUS_OVFX2):
- case (I2C_ALGO_SMBUS | I2C_HW_SMBUS_W9968CF):
- PDEBUG(1, "Adapter ID 0x%06x accepted", adap->id);
- break;
- default:
- PDEBUG(1, "Adapter ID 0x%06x rejected", adap->id);
- return -ENODEV;
- }
-
- c = kmalloc(sizeof *c, GFP_KERNEL);
- if (!c) {
- rc = -ENOMEM;
- goto no_client;
- }
- memcpy(c, &client_template, sizeof *c);
- c->adapter = adap;
- strcpy(i2c_clientname(c), "OV????");
-
- ov = kmalloc(sizeof *ov, GFP_KERNEL);
- if (!ov) {
- rc = -ENOMEM;
- goto no_ov;
- }
- memset(ov, 0, sizeof *ov);
- i2c_set_clientdata(c, ov);
-
- rc = ovcamchip_detect(c);
- if (rc < 0)
- goto error;
-
- strcpy(i2c_clientname(c), chip_names[ov->subtype]);
-
- PDEBUG(1, "Camera chip detection complete");
-
- i2c_attach_client(c);
-
- return rc;
-error:
- kfree(ov);
-no_ov:
- kfree(c);
-no_client:
- PDEBUG(1, "returning %d", rc);
- return rc;
-}
-
-static int ovcamchip_detach(struct i2c_client *c)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
- int rc;
-
- rc = ov->sops->free(c);
- if (rc < 0)
- return rc;
-
- i2c_detach_client(c);
-
- kfree(ov);
- kfree(c);
- return 0;
-}
-
-static int ovcamchip_command(struct i2c_client *c, unsigned int cmd, void *arg)
-{
- struct ovcamchip *ov = i2c_get_clientdata(c);
-
- if (!ov->initialized &&
- cmd != OVCAMCHIP_CMD_Q_SUBTYPE &&
- cmd != OVCAMCHIP_CMD_INITIALIZE) {
- dev_err(&c->dev, "ERROR: Camera chip not initialized yet!\n");
- return -EPERM;
- }
-
- switch (cmd) {
- case OVCAMCHIP_CMD_Q_SUBTYPE:
- {
- *(int *)arg = ov->subtype;
- return 0;
- }
- case OVCAMCHIP_CMD_INITIALIZE:
- {
- int rc;
-
- if (mono == -1)
- ov->mono = *(int *)arg;
- else
- ov->mono = mono;
-
- if (ov->mono) {
- if (ov->subtype != CC_OV7620)
- dev_warn(&c->dev, "Warning: Monochrome not "
- "implemented for this chip\n");
- else
- dev_info(&c->dev, "Initializing chip as "
- "monochrome\n");
- }
-
- rc = ov->sops->init(c);
- if (rc < 0)
- return rc;
-
- ov->initialized = 1;
- return 0;
- }
- default:
- return ov->sops->command(c, cmd, arg);
- }
-}
-
-/* ----------------------------------------------------------------------- */
-
-static struct i2c_driver driver = {
- .owner = THIS_MODULE,
- .name = "ovcamchip",
- .id = I2C_DRIVERID_OVCAMCHIP,
- .class = I2C_CLASS_CAM_DIGITAL,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = ovcamchip_attach,
- .detach_client = ovcamchip_detach,
- .command = ovcamchip_command,
-};
-
-static struct i2c_client client_template = {
- I2C_DEVNAME("(unset)"),
- .id = -1,
- .driver = &driver,
-};
-
-static int __init ovcamchip_init(void)
-{
-#ifdef DEBUG
- ovcamchip_debug = debug;
-#endif
-
- PINFO(DRIVER_VERSION " : " DRIVER_DESC);
- return i2c_add_driver(&driver);
-}
-
-static void __exit ovcamchip_exit(void)
-{
- i2c_del_driver(&driver);
-}
-
-module_init(ovcamchip_init);
-module_exit(ovcamchip_exit);
+++ /dev/null
-/* OmniVision* camera chip driver private definitions for core code and
- * chip-specific code
- *
- * Copyright (c) 1999-2004 Mark McClelland
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. NO WARRANTY OF ANY KIND is expressed or implied.
- *
- * * OmniVision is a trademark of OmniVision Technologies, Inc. This driver
- * is not sponsored or developed by them.
- */
-
-#ifndef __LINUX_OVCAMCHIP_PRIV_H
-#define __LINUX_OVCAMCHIP_PRIV_H
-
-#include <media/ovcamchip.h>
-
-#ifdef DEBUG
-extern int ovcamchip_debug;
-#endif
-
-#define PDEBUG(level, fmt, args...) \
- if (ovcamchip_debug >= (level)) pr_debug("[%s:%d] " fmt "\n", \
- __FUNCTION__, __LINE__ , ## args)
-
-#define DDEBUG(level, dev, fmt, args...) \
- if (ovcamchip_debug >= (level)) dev_dbg(dev, "[%s:%d] " fmt "\n", \
- __FUNCTION__, __LINE__ , ## args)
-
-/* Number of times to retry chip detection. Increase this if you are getting
- * "Failed to init camera chip" */
-#define I2C_DETECT_RETRIES 10
-
-struct ovcamchip_regvals {
- unsigned char reg;
- unsigned char val;
-};
-
-struct ovcamchip_ops {
- int (*init)(struct i2c_client *);
- int (*free)(struct i2c_client *);
- int (*command)(struct i2c_client *, unsigned int, void *);
-};
-
-struct ovcamchip {
- struct ovcamchip_ops *sops;
- void *spriv; /* Private data for OV7x10.c etc... */
- int subtype; /* = SEN_OV7610 etc... */
- int mono; /* Monochrome chip? (invalid until init) */
- int initialized; /* OVCAMCHIP_CMD_INITIALIZE was successful */
-};
-
-/* --------------------------------- */
-/* I2C I/O */
-/* --------------------------------- */
-
-static inline int ov_read(struct i2c_client *c, unsigned char reg,
- unsigned char *value)
-{
- int rc;
-
- rc = i2c_smbus_read_byte_data(c, reg);
- *value = (unsigned char) rc;
- return rc;
-}
-
-static inline int ov_write(struct i2c_client *c, unsigned char reg,
- unsigned char value )
-{
- return i2c_smbus_write_byte_data(c, reg, value);
-}
-
-/* --------------------------------- */
-/* FUNCTION PROTOTYPES */
-/* --------------------------------- */
-
-/* Functions in ovcamchip_core.c */
-
-extern int ov_write_regvals(struct i2c_client *c,
- struct ovcamchip_regvals *rvals);
-
-extern int ov_write_mask(struct i2c_client *c, unsigned char reg,
- unsigned char value, unsigned char mask);
-
-#endif
+++ /dev/null
-/*
- * Common Flash Interface support:
- * Generic utility functions not dependant on command set
- *
- * Copyright (C) 2002 Red Hat
- * Copyright (C) 2003 STMicroelectronics Limited
- *
- * This code is covered by the GPL.
- *
- * $Id: cfi_util.c,v 1.4 2004/07/14 08:38:44 dwmw2 Exp $
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <asm/io.h>
-#include <asm/byteorder.h>
-
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/cfi.h>
-#include <linux/mtd/compatmac.h>
-
-struct cfi_extquery *
-cfi_read_pri(struct map_info *map, __u16 adr, __u16 size, const char* name)
-{
- struct cfi_private *cfi = map->fldrv_priv;
- __u32 base = 0; // cfi->chips[0].start;
- int ofs_factor = cfi->interleave * cfi->device_type;
- int i;
- struct cfi_extquery *extp = NULL;
-
- printk(" %s Extended Query Table at 0x%4.4X\n", name, adr);
- if (!adr)
- goto out;
-
- /* Switch it into Query Mode */
- cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
-
- extp = kmalloc(size, GFP_KERNEL);
- if (!extp) {
- printk(KERN_ERR "Failed to allocate memory\n");
- goto out;
- }
-
- /* Read in the Extended Query Table */
- for (i=0; i<size; i++) {
- ((unsigned char *)extp)[i] =
- cfi_read_query(map, base+((adr+i)*ofs_factor));
- }
-
- if (extp->MajorVersion != '1' ||
- (extp->MinorVersion < '0' || extp->MinorVersion > '3')) {
- printk(KERN_WARNING " Unknown %s Extended Query "
- "version %c.%c.\n", name, extp->MajorVersion,
- extp->MinorVersion);
- kfree(extp);
- extp = NULL;
- goto out;
- }
-
-out:
- /* Make sure it's in read mode */
- cfi_send_gen_cmd(0xf0, 0, base, map, cfi, cfi->device_type, NULL);
- cfi_send_gen_cmd(0xff, 0, base, map, cfi, cfi->device_type, NULL);
-
- return extp;
-}
-
-EXPORT_SYMBOL(cfi_read_pri);
-
-void cfi_fixup(struct map_info *map, struct cfi_fixup* fixups)
-{
- struct cfi_private *cfi = map->fldrv_priv;
- struct cfi_fixup *f;
-
- for (f=fixups; f->fixup; f++) {
- if (((f->mfr == CFI_MFR_ANY) || (f->mfr == cfi->mfr)) &&
- ((f->id == CFI_ID_ANY) || (f->id == cfi->id))) {
- f->fixup(map, f->param);
- }
- }
-}
-
-EXPORT_SYMBOL(cfi_fixup);
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/**
- *
- * $Id: phram.c,v 1.1 2003/08/21 17:52:30 joern Exp $
- *
- * Copyright (c) Jochen Schaeuble <psionic@psionic.de>
- * 07/2003 rewritten by Joern Engel <joern@wh.fh-wedel.de>
- *
- * DISCLAIMER: This driver makes use of Rusty's excellent module code,
- * so it will not work for 2.4 without changes and it wont work for 2.4
- * as a module without major changes. Oh well!
- *
- * Usage:
- *
- * one commend line parameter per device, each in the form:
- * phram=<name>,<start>,<len>
- * <name> may be up to 63 characters.
- * <start> and <len> can be octal, decimal or hexadecimal. If followed
- * by "k", "M" or "G", the numbers will be interpreted as kilo, mega or
- * gigabytes.
- *
- */
-
-#include <asm/io.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/mtd/mtd.h>
-
-#define ERROR(fmt, args...) printk(KERN_ERR "phram: " fmt , ## args)
-
-struct phram_mtd_list {
- struct list_head list;
- struct mtd_info *mtdinfo;
-};
-
-static LIST_HEAD(phram_list);
-
-
-
-int phram_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
- u_char *start = (u_char *)mtd->priv;
-
- if (instr->addr + instr->len > mtd->size)
- return -EINVAL;
-
- memset(start + instr->addr, 0xff, instr->len);
-
- /* This'll catch a few races. Free the thing before returning :)
- * I don't feel at all ashamed. This kind of thing is possible anyway
- * with flash, but unlikely.
- */
-
- instr->state = MTD_ERASE_DONE;
-
- if (instr->callback)
- (*(instr->callback))(instr);
- else
- kfree(instr);
-
- return 0;
-}
-
-int phram_point(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char **mtdbuf)
-{
- u_char *start = (u_char *)mtd->priv;
-
- if (from + len > mtd->size)
- return -EINVAL;
-
- *mtdbuf = start + from;
- *retlen = len;
- return 0;
-}
-
-void phram_unpoint(struct mtd_info *mtd, u_char *addr, loff_t from, size_t len)
-{
-}
-
-int phram_read(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf)
-{
- u_char *start = (u_char *)mtd->priv;
-
- if (from + len > mtd->size)
- return -EINVAL;
-
- memcpy(buf, start + from, len);
-
- *retlen = len;
- return 0;
-}
-
-int phram_write(struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf)
-{
- u_char *start = (u_char *)mtd->priv;
-
- if (to + len > mtd->size)
- return -EINVAL;
-
- memcpy(start + to, buf, len);
-
- *retlen = len;
- return 0;
-}
-
-
-
-static void unregister_devices(void)
-{
- struct phram_mtd_list *this;
-
- list_for_each_entry(this, &phram_list, list) {
- del_mtd_device(this->mtdinfo);
- iounmap(this->mtdinfo->priv);
- kfree(this->mtdinfo);
- kfree(this);
- }
-}
-
-static int register_device(char *name, unsigned long start, unsigned long len)
-{
- struct phram_mtd_list *new;
- int ret = -ENOMEM;
-
- new = kmalloc(sizeof(*new), GFP_KERNEL);
- if (!new)
- goto out0;
-
- new->mtdinfo = kmalloc(sizeof(struct mtd_info), GFP_KERNEL);
- if (!new->mtdinfo)
- goto out1;
-
- memset(new->mtdinfo, 0, sizeof(struct mtd_info));
-
- ret = -EIO;
- new->mtdinfo->priv = ioremap(start, len);
- if (!new->mtdinfo->priv) {
- ERROR("ioremap failed\n");
- goto out2;
- }
-
-
- new->mtdinfo->name = name;
- new->mtdinfo->size = len;
- new->mtdinfo->flags = MTD_CAP_RAM | MTD_ERASEABLE | MTD_VOLATILE;
- new->mtdinfo->erase = phram_erase;
- new->mtdinfo->point = phram_point;
- new->mtdinfo->unpoint = phram_unpoint;
- new->mtdinfo->read = phram_read;
- new->mtdinfo->write = phram_write;
- new->mtdinfo->owner = THIS_MODULE;
- new->mtdinfo->type = MTD_RAM;
- new->mtdinfo->erasesize = 0x0;
-
- ret = -EAGAIN;
- if (add_mtd_device(new->mtdinfo)) {
- ERROR("Failed to register new device\n");
- goto out3;
- }
-
- list_add_tail(&new->list, &phram_list);
- return 0;
-
-out3:
- iounmap(new->mtdinfo->priv);
-out2:
- kfree(new->mtdinfo);
-out1:
- kfree(new);
-out0:
- return ret;
-}
-
-static int ustrtoul(const char *cp, char **endp, unsigned int base)
-{
- unsigned long result = simple_strtoul(cp, endp, base);
-
- switch (**endp) {
- case 'G':
- result *= 1024;
- case 'M':
- result *= 1024;
- case 'k':
- result *= 1024;
- endp++;
- }
- return result;
-}
-
-static int parse_num32(uint32_t *num32, const char *token)
-{
- char *endp;
- unsigned long n;
-
- n = ustrtoul(token, &endp, 0);
- if (*endp)
- return -EINVAL;
-
- *num32 = n;
- return 0;
-}
-
-static int parse_name(char **pname, const char *token)
-{
- size_t len;
- char *name;
-
- len = strlen(token) + 1;
- if (len > 64)
- return -ENOSPC;
-
- name = kmalloc(len, GFP_KERNEL);
- if (!name)
- return -ENOMEM;
-
- strcpy(name, token);
-
- *pname = name;
- return 0;
-}
-
-#define parse_err(fmt, args...) do { \
- ERROR(fmt , ## args); \
- return 0; \
-} while (0)
-
-static int phram_setup(const char *val, struct kernel_param *kp)
-{
- char buf[64+12+12], *str = buf;
- char *token[3];
- char *name;
- uint32_t start;
- uint32_t len;
- int i, ret;
-
- if (strnlen(val, sizeof(str)) >= sizeof(str))
- parse_err("parameter too long\n");
-
- strcpy(str, val);
-
- for (i=0; i<3; i++)
- token[i] = strsep(&str, ",");
-
- if (str)
- parse_err("too many arguments\n");
-
- if (!token[2])
- parse_err("not enough arguments\n");
-
- ret = parse_name(&name, token[0]);
- if (ret == -ENOMEM)
- parse_err("out of memory\n");
- if (ret == -ENOSPC)
- parse_err("name too long\n");
- if (ret)
- return 0;
-
- ret = parse_num32(&start, token[1]);
- if (ret)
- parse_err("illegal start address\n");
-
- ret = parse_num32(&len, token[2]);
- if (ret)
- parse_err("illegal device length\n");
-
- register_device(name, start, len);
-
- return 0;
-}
-
-module_param_call(phram, phram_setup, NULL, NULL, 000);
-MODULE_PARM_DESC(phram, "Memory region to map. \"map=<name>,<start><length>\"");
-
-/*
- * Just for compatibility with slram, this is horrible and should go someday.
- */
-static int __init slram_setup(const char *val, struct kernel_param *kp)
-{
- char buf[256], *str = buf;
-
- if (!val || !val[0])
- parse_err("no arguments to \"slram=\"\n");
-
- if (strnlen(val, sizeof(str)) >= sizeof(str))
- parse_err("parameter too long\n");
-
- strcpy(str, val);
-
- while (str) {
- char *token[3];
- char *name;
- uint32_t start;
- uint32_t len;
- int i, ret;
-
- for (i=0; i<3; i++) {
- token[i] = strsep(&str, ",");
- if (token[i])
- continue;
- parse_err("wrong number of arguments to \"slram=\"\n");
- }
-
- /* name */
- ret = parse_name(&name, token[0]);
- if (ret == -ENOMEM)
- parse_err("of memory\n");
- if (ret == -ENOSPC)
- parse_err("too long\n");
- if (ret)
- return 1;
-
- /* start */
- ret = parse_num32(&start, token[1]);
- if (ret)
- parse_err("illegal start address\n");
-
- /* len */
- if (token[2][0] == '+')
- ret = parse_num32(&len, token[2] + 1);
- else
- ret = parse_num32(&len, token[2]);
-
- if (ret)
- parse_err("illegal device length\n");
-
- if (token[2][0] != '+') {
- if (len < start)
- parse_err("end < start\n");
- len -= start;
- }
-
- register_device(name, start, len);
- }
- return 1;
-}
-
-module_param_call(slram, slram_setup, NULL, NULL, 000);
-MODULE_PARM_DESC(slram, "List of memory regions to map. \"map=<name>,<start><length/end>\"");
-
-
-int __init init_phram(void)
-{
- printk(KERN_ERR "phram loaded\n");
- return 0;
-}
-
-static void __exit cleanup_phram(void)
-{
- unregister_devices();
-}
-
-module_init(init_phram);
-module_exit(cleanup_phram);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jörn Engel <joern@wh.fh-wedel.de>");
-MODULE_DESCRIPTION("MTD driver for physical RAM");
+++ /dev/null
-/*
- * Flash memory access on Alchemy Db1550 board
- *
- * $Id: db1550-flash.c,v 1.3 2004/07/14 17:45:40 dwmw2 Exp $
- *
- * (C) 2004 Embedded Edge, LLC, based on db1550-flash.c:
- * (C) 2003 Pete Popov <pete_popov@yahoo.com>
- *
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <asm/au1000.h>
-
-#ifdef DEBUG_RW
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-static unsigned long window_addr;
-static unsigned long window_size;
-
-
-static struct map_info db1550_map = {
- .name = "Db1550 flash",
-};
-
-static unsigned char flash_bankwidth = 4;
-
-/*
- * Support only 64MB NOR Flash parts
- */
-
-#if defined(CONFIG_MTD_DB1550_BOOT) && defined(CONFIG_MTD_DB1550_USER)
-#define DB1550_BOTH_BANKS
-#elif defined(CONFIG_MTD_DB1550_BOOT) && !defined(CONFIG_MTD_DB1550_USER)
-#define DB1550_BOOT_ONLY
-#elif !defined(CONFIG_MTD_DB1550_BOOT) && defined(CONFIG_MTD_DB1550_USER)
-#define DB1550_USER_ONLY
-#endif
-
-#ifdef DB1550_BOTH_BANKS
-/* both banks will be used. Combine the first bank and the first
- * part of the second bank together into a single jffs/jffs2
- * partition.
- */
-static struct mtd_partition db1550_partitions[] = {
- /* assume boot[2:0]:swap is '0000' or '1000', which translates to:
- * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash
- * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash
- */
- {
- .name = "User FS",
- .size = (0x1FC00000 - 0x18000000),
- .offset = 0x0000000
- },{
- .name = "yamon",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000 - 0x40000), /* last 256KB is yamon env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#elif defined(DB1550_BOOT_ONLY)
-static struct mtd_partition db1550_partitions[] = {
- /* assume boot[2:0]:swap is '0000' or '1000', which translates to:
- * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash
- */
- {
- .name = "User FS",
- .size = 0x03c00000,
- .offset = 0x0000000
- },{
- .name = "yamon",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000-0x40000), /* last 256KB is yamon env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#elif defined(DB1550_USER_ONLY)
-static struct mtd_partition db1550_partitions[] = {
- /* assume boot[2:0]:swap is '0000' or '1000', which translates to:
- * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash
- */
- {
- .name = "User FS",
- .size = (0x4000000 - 0x200000), /* reserve 2MB for raw kernel */
- .offset = 0x0000000
- },{
- .name = "raw kernel",
- .size = MTDPART_SIZ_FULL,
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#else
-#error MTD_DB1550 define combo error /* should never happen */
-#endif
-
-#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
-
-static struct mtd_info *mymtd;
-
-/*
- * Probe the flash density and setup window address and size
- * based on user CONFIG options. There are times when we don't
- * want the MTD driver to be probing the boot or user flash,
- * so having the option to enable only one bank is important.
- */
-int setup_flash_params(void)
-{
-#if defined(DB1550_BOTH_BANKS)
- window_addr = 0x18000000;
- window_size = 0x8000000;
-#elif defined(DB1550_BOOT_ONLY)
- window_addr = 0x1C000000;
- window_size = 0x4000000;
-#else /* USER ONLY */
- window_addr = 0x1E000000;
- window_size = 0x4000000;
-#endif
- return 0;
-}
-
-int __init db1550_mtd_init(void)
-{
- struct mtd_partition *parts;
- int nb_parts = 0;
-
- /* Default flash bankwidth */
- db1550_map.bankwidth = flash_bankwidth;
-
- if (setup_flash_params())
- return -ENXIO;
-
- /*
- * Static partition definition selection
- */
- parts = db1550_partitions;
- nb_parts = NB_OF(db1550_partitions);
- db1550_map.size = window_size;
-
- /*
- * Now let's probe for the actual flash. Do it here since
- * specific machine settings might have been set above.
- */
- printk(KERN_NOTICE "Pb1550 flash: probing %d-bit flash bus\n",
- db1550_map.bankwidth*8);
- db1550_map.virt =
- (unsigned long)ioremap(window_addr, window_size);
- mymtd = do_map_probe("cfi_probe", &db1550_map);
- if (!mymtd) return -ENXIO;
- mymtd->owner = THIS_MODULE;
-
- add_mtd_partitions(mymtd, parts, nb_parts);
- return 0;
-}
-
-static void __exit db1550_mtd_cleanup(void)
-{
- if (mymtd) {
- del_mtd_partitions(mymtd);
- map_destroy(mymtd);
- }
-}
-
-module_init(db1550_mtd_init);
-module_exit(db1550_mtd_cleanup);
-
-MODULE_AUTHOR("Embedded Edge, LLC");
-MODULE_DESCRIPTION("Db1550 mtd map driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Flash memory access on Alchemy Db1xxx boards
- *
- * $Id: db1x00-flash.c,v 1.3 2004/07/14 17:45:40 dwmw2 Exp $
- *
- * (C) 2003 Pete Popov <ppopov@pacbell.net>
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <asm/au1000.h>
-#include <asm/db1x00.h>
-
-#ifdef DEBUG_RW
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-static unsigned long window_addr;
-static unsigned long window_size;
-static unsigned long flash_size;
-
-static BCSR * const bcsr = (BCSR *)0xAE000000;
-static unsigned char flash_bankwidth = 4;
-
-/*
- * The Db1x boards support different flash densities. We setup
- * the mtd_partition structures below for default of 64Mbit
- * flash densities, and override the partitions sizes, if
- * necessary, after we check the board status register.
- */
-
-#ifdef DB1X00_BOTH_BANKS
-/* both banks will be used. Combine the first bank and the first
- * part of the second bank together into a single jffs/jffs2
- * partition.
- */
-static struct mtd_partition db1x00_partitions[] = {
- {
- .name = "User FS",
- .size = 0x1c00000,
- .offset = 0x0000000
- },{
- .name = "yamon",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000-0x40000), /* last 256KB is env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#elif defined(DB1X00_BOOT_ONLY)
-static struct mtd_partition db1x00_partitions[] = {
- {
- .name = "User FS",
- .size = 0x00c00000,
- .offset = 0x0000000
- },{
- .name = "yamon",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000-0x40000), /* last 256KB is env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#elif defined(DB1X00_USER_ONLY)
-static struct mtd_partition db1x00_partitions[] = {
- {
- .name = "User FS",
- .size = 0x0e00000,
- .offset = 0x0000000
- },{
- .name = "raw kernel",
- .size = MTDPART_SIZ_FULL,
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#else
-#error MTD_DB1X00 define combo error /* should never happen */
-#endif
-#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
-
-#define NAME "Db1x00 Linux Flash"
-
-static struct map_info db1xxx_mtd_map = {
- .name = NAME,
-};
-
-static struct mtd_partition *parsed_parts;
-static struct mtd_info *db1xxx_mtd;
-
-/*
- * Probe the flash density and setup window address and size
- * based on user CONFIG options. There are times when we don't
- * want the MTD driver to be probing the boot or user flash,
- * so having the option to enable only one bank is important.
- */
-int setup_flash_params(void)
-{
- switch ((bcsr->status >> 14) & 0x3) {
- case 0: /* 64Mbit devices */
- flash_size = 0x800000; /* 8MB per part */
-#if defined(DB1X00_BOTH_BANKS)
- window_addr = 0x1E000000;
- window_size = 0x2000000;
-#elif defined(DB1X00_BOOT_ONLY)
- window_addr = 0x1F000000;
- window_size = 0x1000000;
-#else /* USER ONLY */
- window_addr = 0x1E000000;
- window_size = 0x1000000;
-#endif
- break;
- case 1:
- /* 128 Mbit devices */
- flash_size = 0x1000000; /* 16MB per part */
-#if defined(DB1X00_BOTH_BANKS)
- window_addr = 0x1C000000;
- window_size = 0x4000000;
- /* USERFS from 0x1C00 0000 to 0x1FC0 0000 */
- db1x00_partitions[0].size = 0x3C00000;
-#elif defined(DB1X00_BOOT_ONLY)
- window_addr = 0x1E000000;
- window_size = 0x2000000;
- /* USERFS from 0x1E00 0000 to 0x1FC0 0000 */
- db1x00_partitions[0].size = 0x1C00000;
-#else /* USER ONLY */
- window_addr = 0x1C000000;
- window_size = 0x2000000;
- /* USERFS from 0x1C00 0000 to 0x1DE00000 */
- db1x00_partitions[0].size = 0x1DE0000;
-#endif
- break;
- case 2:
- /* 256 Mbit devices */
- flash_size = 0x4000000; /* 64MB per part */
-#if defined(DB1X00_BOTH_BANKS)
- return 1;
-#elif defined(DB1X00_BOOT_ONLY)
- /* Boot ROM flash bank only; no user bank */
- window_addr = 0x1C000000;
- window_size = 0x4000000;
- /* USERFS from 0x1C00 0000 to 0x1FC00000 */
- db1x00_partitions[0].size = 0x3C00000;
-#else /* USER ONLY */
- return 1;
-#endif
- break;
- default:
- return 1;
- }
- db1xxx_mtd_map.size = window_size;
- db1xxx_mtd_map.bankwidth = flash_bankwidth;
- db1xxx_mtd_map.phys = window_addr;
- db1xxx_mtd_map.bankwidth = flash_bankwidth;
- return 0;
-}
-
-int __init db1x00_mtd_init(void)
-{
- struct mtd_partition *parts;
- int nb_parts = 0;
-
- if (setup_flash_params())
- return -ENXIO;
-
- /*
- * Static partition definition selection
- */
- parts = db1x00_partitions;
- nb_parts = NB_OF(db1x00_partitions);
-
- /*
- * Now let's probe for the actual flash. Do it here since
- * specific machine settings might have been set above.
- */
- printk(KERN_NOTICE "Db1xxx flash: probing %d-bit flash bus\n",
- db1xxx_mtd_map.bankwidth*8);
- db1xxx_mtd_map.virt = (unsigned long)ioremap(window_addr, window_size);
- db1xxx_mtd = do_map_probe("cfi_probe", &db1xxx_mtd_map);
- if (!db1xxx_mtd) return -ENXIO;
- db1xxx_mtd->owner = THIS_MODULE;
-
- add_mtd_partitions(db1xxx_mtd, parts, nb_parts);
- return 0;
-}
-
-static void __exit db1x00_mtd_cleanup(void)
-{
- if (db1xxx_mtd) {
- del_mtd_partitions(db1xxx_mtd);
- map_destroy(db1xxx_mtd);
- if (parsed_parts)
- kfree(parsed_parts);
- }
-}
-
-module_init(db1x00_mtd_init);
-module_exit(db1x00_mtd_cleanup);
-
-MODULE_AUTHOR("Pete Popov");
-MODULE_DESCRIPTION("Db1x00 mtd map driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-
-/*
- * drivers/mtd/maps/svme182.c
- *
- * Flash map driver for the Dy4 SVME182 board
- *
- * $Id: dmv182.c,v 1.3 2004/07/14 17:45:40 dwmw2 Exp $
- *
- * Copyright 2003-2004, TimeSys Corporation
- *
- * Based on the SVME181 flash map, by Tom Nelson, Dot4, Inc. for TimeSys Corp.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <asm/io.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-#include <linux/errno.h>
-
-/*
- * This driver currently handles only the 16MiB user flash bank 1 on the
- * board. It does not provide access to bank 0 (contains the Dy4 FFW), bank 2
- * (VxWorks boot), or the optional 48MiB expansion flash.
- *
- * scott.wood@timesys.com: On the newer boards with 128MiB flash, it
- * now supports the first 96MiB (the boot flash bank containing FFW
- * is excluded). The VxWorks loader is in partition 1.
- */
-
-#define FLASH_BASE_ADDR 0xf0000000
-#define FLASH_BANK_SIZE (128*1024*1024)
-
-MODULE_AUTHOR("Scott Wood, TimeSys Corporation <scott.wood@timesys.com>");
-MODULE_DESCRIPTION("User-programmable flash device on the Dy4 SVME182 board");
-MODULE_LICENSE("GPL");
-
-static struct map_info svme182_map = {
- .name = "Dy4 SVME182",
- .bankwidth = 32,
- .size = 128 * 1024 * 1024
-};
-
-#define BOOTIMAGE_PART_SIZE ((6*1024*1024)-RESERVED_PART_SIZE)
-
-// Allow 6MiB for the kernel
-#define NEW_BOOTIMAGE_PART_SIZE (6 * 1024 * 1024)
-// Allow 1MiB for the bootloader
-#define NEW_BOOTLOADER_PART_SIZE (1024 * 1024)
-// Use the remaining 9MiB at the end of flash for the RFS
-#define NEW_RFS_PART_SIZE (0x01000000 - NEW_BOOTLOADER_PART_SIZE - \
- NEW_BOOTIMAGE_PART_SIZE)
-
-static struct mtd_partition svme182_partitions[] = {
- // The Lower PABS is only 128KiB, but the partition code doesn't
- // like partitions that don't end on the largest erase block
- // size of the device, even if all of the erase blocks in the
- // partition are small ones. The hardware should prevent
- // writes to the actual PABS areas.
- {
- name: "Lower PABS and CPU 0 bootloader or kernel",
- size: 6*1024*1024,
- offset: 0,
- },
- {
- name: "Root Filesystem",
- size: 10*1024*1024,
- offset: MTDPART_OFS_NXTBLK
- },
- {
- name: "CPU1 Bootloader",
- size: 1024*1024,
- offset: MTDPART_OFS_NXTBLK,
- },
- {
- name: "Extra",
- size: 110*1024*1024,
- offset: MTDPART_OFS_NXTBLK
- },
- {
- name: "Foundation Firmware and Upper PABS",
- size: 1024*1024,
- offset: MTDPART_OFS_NXTBLK,
- mask_flags: MTD_WRITEABLE // read-only
- }
-};
-
-static struct mtd_info *this_mtd;
-
-static int __init init_svme182(void)
-{
- struct mtd_partition *partitions;
- int num_parts = sizeof(svme182_partitions) / sizeof(struct mtd_partition);
-
- partitions = svme182_partitions;
-
- svme182_map.virt =
- (unsigned long)ioremap(FLASH_BASE_ADDR, svme182_map.size);
-
- if (svme182_map.virt == 0) {
- printk("Failed to ioremap FLASH memory area.\n");
- return -EIO;
- }
-
- simple_map_init(&svme182_map);
-
- this_mtd = do_map_probe("cfi_probe", &svme182_map);
- if (!this_mtd)
- {
- iounmap((void *)svme182_map.virt);
- return -ENXIO;
- }
-
- printk(KERN_NOTICE "SVME182 flash device: %dMiB at 0x%08x\n",
- this_mtd->size >> 20, FLASH_BASE_ADDR);
-
- this_mtd->owner = THIS_MODULE;
- add_mtd_partitions(this_mtd, partitions, num_parts);
-
- return 0;
-}
-
-static void __exit cleanup_svme182(void)
-{
- if (this_mtd)
- {
- del_mtd_partitions(this_mtd);
- map_destroy(this_mtd);
- }
-
- if (svme182_map.virt)
- {
- iounmap((void *)svme182_map.virt);
- svme182_map.virt = 0;
- }
-
- return;
-}
-
-module_init(init_svme182);
-module_exit(cleanup_svme182);
+++ /dev/null
-/*
- * ichxrom.c
- *
- * Normal mappings of chips in physical memory
- * $Id: ichxrom.c,v 1.7 2004/07/14 18:14:09 eric Exp $
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/config.h>
-#include <linux/pci.h>
-#include <linux/pci_ids.h>
-#include <linux/mtd/cfi.h>
-
-#define xstr(s) str(s)
-#define str(s) #s
-#define MOD_NAME xstr(KBUILD_BASENAME)
-
-#define MTD_DEV_NAME_LENGTH 16
-
-#define RESERVE_MEM_REGION 0
-
-
-#define MANUFACTURER_INTEL 0x0089
-#define I82802AB 0x00ad
-#define I82802AC 0x00ac
-
-#define ICHX_FWH_REGION_START 0xFF000000UL
-#define ICHX_FWH_REGION_SIZE 0x01000000UL
-#define BIOS_CNTL 0x4e
-#define FWH_DEC_EN1 0xE3
-#define FWH_DEC_EN2 0xF0
-#define FWH_SEL1 0xE8
-#define FWH_SEL2 0xEE
-
-struct ichxrom_map_info {
- struct map_info map;
- struct mtd_info *mtd;
- unsigned long window_addr;
- struct pci_dev *pdev;
- struct resource window_rsrc;
- struct resource rom_rsrc;
- char mtd_name[MTD_DEV_NAME_LENGTH];
-};
-
-static inline unsigned long addr(struct map_info *map, unsigned long ofs)
-{
- unsigned long offset;
- offset = ((8*1024*1024) - map->size) + ofs;
- if (offset >= (4*1024*1024)) {
- offset += 0x400000;
- }
- return map->map_priv_1 + 0x400000 + offset;
-}
-
-static inline unsigned long dbg_addr(struct map_info *map, unsigned long addr)
-{
- return addr - map->map_priv_1 + ICHX_FWH_REGION_START;
-}
-
-static map_word ichxrom_read(struct map_info *map, unsigned long ofs)
-{
- map_word val;
- int i;
- switch(map->bankwidth) {
- case 1: val.x[0] = __raw_readb(addr(map, ofs)); break;
- case 2: val.x[0] = __raw_readw(addr(map, ofs)); break;
- case 4: val.x[0] = __raw_readl(addr(map, ofs)); break;
-#if BITS_PER_LONG >= 64
- case 8: val.x[0] = __raw_readq(addr(map, ofs)); break;
-#endif
- default: val.x[0] = 0; break;
- }
- for(i = 1; i < map_words(map); i++) {
- val.x[i] = 0;
- }
- return val;
-}
-
-static void ichxrom_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-{
- memcpy_fromio(to, addr(map, from), len);
-}
-
-static void ichxrom_write(struct map_info *map, map_word d, unsigned long ofs)
-{
- switch(map->bankwidth) {
- case 1: __raw_writeb(d.x[0], addr(map,ofs)); break;
- case 2: __raw_writew(d.x[0], addr(map,ofs)); break;
- case 4: __raw_writel(d.x[0], addr(map,ofs)); break;
-#if BITS_PER_LONG >= 64
- case 8: __raw_writeq(d.x[0], addr(map,ofs)); break;
-#endif
- }
- mb();
-}
-
-static void ichxrom_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
-{
- memcpy_toio(addr(map, to), from, len);
-}
-
-static struct ichxrom_map_info ichxrom_map = {
- .map = {
- .name = MOD_NAME,
- .phys = NO_XIP,
- .size = 0,
- .bankwidth = 1,
- .read = ichxrom_read,
- .copy_from = ichxrom_copy_from,
- .write = ichxrom_write,
- .copy_to = ichxrom_copy_to,
- /* Firmware hubs only use vpp when being programmed
- * in a factory setting. So in-place programming
- * needs to use a different method.
- */
- },
- /* remaining fields of structure are initialized to 0 */
-};
-
-enum fwh_lock_state {
- FWH_DENY_WRITE = 1,
- FWH_IMMUTABLE = 2,
- FWH_DENY_READ = 4,
-};
-
-static void ichxrom_cleanup(struct ichxrom_map_info *info)
-{
- u16 word;
-
- /* Disable writes through the rom window */
- pci_read_config_word(info->pdev, BIOS_CNTL, &word);
- pci_write_config_word(info->pdev, BIOS_CNTL, word & ~1);
-
- if (info->mtd) {
- del_mtd_device(info->mtd);
- map_destroy(info->mtd);
- info->mtd = NULL;
- info->map.virt = 0;
- }
- if (info->rom_rsrc.parent)
- release_resource(&info->rom_rsrc);
- if (info->window_rsrc.parent)
- release_resource(&info->window_rsrc);
-
- if (info->window_addr) {
- iounmap((void *)(info->window_addr));
- info->window_addr = 0;
- }
-}
-
-
-static int ichxrom_set_lock_state(struct mtd_info *mtd, loff_t ofs, size_t len,
- enum fwh_lock_state state)
-{
- struct map_info *map = mtd->priv;
- unsigned long start = ofs;
- unsigned long end = start + len -1;
-
- /* FIXME do I need to guard against concurrency here? */
- /* round down to 64K boundaries */
- start = start & ~0xFFFF;
- end = end & ~0xFFFF;
- while (start <= end) {
- unsigned long ctrl_addr;
- ctrl_addr = addr(map, start) - 0x400000 + 2;
- writeb(state, ctrl_addr);
- start = start + 0x10000;
- }
- return 0;
-}
-
-static int ichxrom_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
-{
- return ichxrom_set_lock_state(mtd, ofs, len, FWH_DENY_WRITE);
-}
-
-static int ichxrom_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
-{
- return ichxrom_set_lock_state(mtd, ofs, len, 0);
-}
-
-static int __devinit ichxrom_init_one (struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- u16 word;
- struct ichxrom_map_info *info = &ichxrom_map;
- unsigned long map_size;
- static char *probes[] = { "cfi_probe", "jedec_probe" };
- struct cfi_private *cfi;
-
- /* For now I just handle the ichx and I assume there
- * are not a lot of resources up at the top of the address
- * space. It is possible to handle other devices in the
- * top 16MB but it is very painful. Also since
- * you can only really attach a FWH to an ICHX there
- * a number of simplifications you can make.
- *
- * Also you can page firmware hubs if an 8MB window isn't enough
- * but don't currently handle that case either.
- */
-
- info->pdev = pdev;
-
- /*
- * Try to reserve the window mem region. If this fails then
- * it is likely due to the window being "reseved" by the BIOS.
- */
- info->window_rsrc.name = MOD_NAME;
- info->window_rsrc.start = ICHX_FWH_REGION_START;
- info->window_rsrc.end = ICHX_FWH_REGION_START + ICHX_FWH_REGION_SIZE - 1;
- info->window_rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
- if (request_resource(&iomem_resource, &info->window_rsrc)) {
- info->window_rsrc.parent = NULL;
- printk(KERN_ERR MOD_NAME
- " %s(): Unable to register resource"
- " 0x%.08lx-0x%.08lx - kernel bug?\n",
- __func__,
- info->window_rsrc.start, info->window_rsrc.end);
- }
-
- /* Enable writes through the rom window */
- pci_read_config_word(pdev, BIOS_CNTL, &word);
- if (!(word & 1) && (word & (1<<1))) {
- /* The BIOS will generate an error if I enable
- * this device, so don't even try.
- */
- printk(KERN_ERR MOD_NAME ": firmware access control, I can't enable writes\n");
- goto failed;
- }
- pci_write_config_word(pdev, BIOS_CNTL, word | 1);
-
-
- /* Map the firmware hub into my address space. */
- /* Does this use too much virtual address space? */
- info->window_addr = (unsigned long)ioremap(
- ICHX_FWH_REGION_START, ICHX_FWH_REGION_SIZE);
- if (!info->window_addr) {
- printk(KERN_ERR "Failed to ioremap\n");
- goto failed;
- }
-
- /* For now assume the firmware has setup all relevant firmware
- * windows. We don't have enough information to handle this case
- * intelligently.
- */
-
- /* FIXME select the firmware hub and enable a window to it. */
-
- info->mtd = NULL;
- info->map.map_priv_1 = info->window_addr;
-
- /* Loop through the possible bankwidths */
- for(ichxrom_map.map.bankwidth = 4; ichxrom_map.map.bankwidth; ichxrom_map.map.bankwidth >>= 1) {
- map_size = ICHX_FWH_REGION_SIZE;
- while(!info->mtd && (map_size > 0)) {
- int i;
- info->map.size = map_size;
- for(i = 0; i < sizeof(probes)/sizeof(char *); i++) {
- info->mtd = do_map_probe(probes[i], &ichxrom_map.map);
- if (info->mtd)
- break;
- }
- map_size -= 512*1024;
- }
- if (info->mtd)
- break;
- }
- if (!info->mtd) {
- goto failed;
- }
- cfi = ichxrom_map.map.fldrv_priv;
- if ((cfi->mfr == MANUFACTURER_INTEL) && (
- (cfi->id == I82802AB) ||
- (cfi->id == I82802AC)))
- {
- /* If it is a firmware hub put in the special lock
- * and unlock routines.
- */
- info->mtd->lock = ichxrom_lock;
- info->mtd->unlock = ichxrom_unlock;
- }
- if (info->mtd->size > info->map.size) {
- printk(KERN_WARNING MOD_NAME " rom(%u) larger than window(%u). fixing...\n",
- info->mtd->size, info->map.size);
- info->mtd->size = info->map.size;
- }
-
- info->mtd->owner = THIS_MODULE;
- add_mtd_device(info->mtd);
-
- if (info->window_rsrc.parent) {
- /*
- * Registering the MTD device in iomem may not be possible
- * if there is a BIOS "reserved" and BUSY range. If this
- * fails then continue anyway.
- */
- snprintf(info->mtd_name, MTD_DEV_NAME_LENGTH,
- "mtd%d", info->mtd->index);
-
- info->rom_rsrc.name = info->mtd_name;
- info->rom_rsrc.start = ICHX_FWH_REGION_START
- + ICHX_FWH_REGION_SIZE - map_size;
- info->rom_rsrc.end = ICHX_FWH_REGION_START
- + ICHX_FWH_REGION_SIZE;
- info->rom_rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
- if (request_resource(&info->window_rsrc, &info->rom_rsrc)) {
- printk(KERN_ERR MOD_NAME
- ": cannot reserve MTD resource\n");
- info->rom_rsrc.parent = NULL;
- }
- }
-
- return 0;
-
- failed:
- ichxrom_cleanup(info);
- return -ENODEV;
-}
-
-
-static void __devexit ichxrom_remove_one (struct pci_dev *pdev)
-{
- struct ichxrom_map_info *info = &ichxrom_map;
- u16 word;
-
- del_mtd_device(info->mtd);
- map_destroy(info->mtd);
- info->mtd = NULL;
- info->map.map_priv_1 = 0;
-
- iounmap((void *)(info->window_addr));
- info->window_addr = 0;
-
- /* Disable writes through the rom window */
- pci_read_config_word(pdev, BIOS_CNTL, &word);
- pci_write_config_word(pdev, BIOS_CNTL, word & ~1);
-
-#if RESERVE_MEM_REGION
- release_mem_region(ICHX_FWH_REGION_START, ICHX_FWH_REGION_SIZE);
-#endif
-}
-
-static struct pci_device_id ichxrom_pci_tbl[] __devinitdata = {
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1,
- PCI_ANY_ID, PCI_ANY_ID, },
- { 0, },
-};
-
-MODULE_DEVICE_TABLE(pci, ichxrom_pci_tbl);
-
-#if 0
-static struct pci_driver ichxrom_driver = {
- .name = MOD_NAME,
- .id_table = ichxrom_pci_tbl,
- .probe = ichxrom_init_one,
- .remove = ichxrom_remove_one,
-};
-#endif
-
-static struct pci_dev *mydev;
-int __init init_ichxrom(void)
-{
- struct pci_dev *pdev;
- struct pci_device_id *id;
-
- pdev = NULL;
- for (id = ichxrom_pci_tbl; id->vendor; id++) {
- pdev = pci_find_device(id->vendor, id->device, NULL);
- if (pdev) {
- break;
- }
- }
- if (pdev) {
- mydev = pdev;
- return ichxrom_init_one(pdev, &ichxrom_pci_tbl[0]);
- }
- return -ENXIO;
-#if 0
- return pci_module_init(&ichxrom_driver);
-#endif
-}
-
-static void __exit cleanup_ichxrom(void)
-{
- ichxrom_remove_one(mydev);
-}
-
-module_init(init_ichxrom);
-module_exit(cleanup_ichxrom);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Eric Biederman <ebiederman@lnxi.com>");
-MODULE_DESCRIPTION("MTD map driver for BIOS chips on the ICHX southbridge");
+++ /dev/null
-/*======================================================================
-
- drivers/mtd/maps/armflash.c: ARM Flash Layout/Partitioning
-
- Copyright (C) 2000 ARM Limited
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- This is access code for flashes using ARM's flash partitioning
- standards.
-
- $Id: integrator-flash-v24.c,v 1.13 2004/07/12 21:59:44 dwmw2 Exp $
-
-======================================================================*/
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/system.h>
-
-// board specific stuff - sorry, it should be in arch/arm/mach-*.
-#ifdef CONFIG_ARCH_INTEGRATOR
-
-#define FLASH_BASE INTEGRATOR_FLASH_BASE
-#define FLASH_SIZE INTEGRATOR_FLASH_SIZE
-
-#define FLASH_PART_SIZE 0x400000
-
-#define SC_CTRLC (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLC_OFFSET)
-#define SC_CTRLS (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLS_OFFSET)
-#define EBI_CSR1 (IO_ADDRESS(INTEGRATOR_EBI_BASE) + INTEGRATOR_EBI_CSR1_OFFSET)
-#define EBI_LOCK (IO_ADDRESS(INTEGRATOR_EBI_BASE) + INTEGRATOR_EBI_LOCK_OFFSET)
-
-/*
- * Initialise the flash access systems:
- * - Disable VPP
- * - Assert WP
- * - Set write enable bit in EBI reg
- */
-static void armflash_flash_init(void)
-{
- unsigned int tmp;
-
- __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, SC_CTRLC);
-
- tmp = __raw_readl(EBI_CSR1) | INTEGRATOR_EBI_WRITE_ENABLE;
- __raw_writel(tmp, EBI_CSR1);
-
- if (!(__raw_readl(EBI_CSR1) & INTEGRATOR_EBI_WRITE_ENABLE)) {
- __raw_writel(0xa05f, EBI_LOCK);
- __raw_writel(tmp, EBI_CSR1);
- __raw_writel(0, EBI_LOCK);
- }
-}
-
-/*
- * Shutdown the flash access systems:
- * - Disable VPP
- * - Assert WP
- * - Clear write enable bit in EBI reg
- */
-static void armflash_flash_exit(void)
-{
- unsigned int tmp;
-
- __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, SC_CTRLC);
-
- /*
- * Clear the write enable bit in system controller EBI register.
- */
- tmp = __raw_readl(EBI_CSR1) & ~INTEGRATOR_EBI_WRITE_ENABLE;
- __raw_writel(tmp, EBI_CSR1);
-
- if (__raw_readl(EBI_CSR1) & INTEGRATOR_EBI_WRITE_ENABLE) {
- __raw_writel(0xa05f, EBI_LOCK);
- __raw_writel(tmp, EBI_CSR1);
- __raw_writel(0, EBI_LOCK);
- }
-}
-
-static void armflash_flash_wp(int on)
-{
- unsigned int reg;
-
- if (on)
- reg = SC_CTRLC;
- else
- reg = SC_CTRLS;
-
- __raw_writel(INTEGRATOR_SC_CTRL_nFLWP, reg);
-}
-
-static void armflash_set_vpp(struct map_info *map, int on)
-{
- unsigned int reg;
-
- if (on)
- reg = SC_CTRLS;
- else
- reg = SC_CTRLC;
-
- __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN, reg);
-}
-#endif
-
-#ifdef CONFIG_ARCH_P720T
-
-#define FLASH_BASE (0x04000000)
-#define FLASH_SIZE (64*1024*1024)
-
-#define FLASH_PART_SIZE (4*1024*1024)
-#define FLASH_BLOCK_SIZE (128*1024)
-
-static void armflash_flash_init(void)
-{
-}
-
-static void armflash_flash_exit(void)
-{
-}
-
-static void armflash_flash_wp(int on)
-{
-}
-
-static void armflash_set_vpp(struct map_info *map, int on)
-{
-}
-#endif
-
-
-static struct map_info armflash_map =
-{
- .name = "AFS",
- .set_vpp = armflash_set_vpp,
- .phys = FLASH_BASE,
-};
-
-static struct mtd_info *mtd;
-static struct mtd_partition *parts;
-static const char *probes[] = { "RedBoot", "afs", NULL };
-
-static int __init armflash_cfi_init(void *base, u_int size)
-{
- int ret;
-
- armflash_flash_init();
- armflash_flash_wp(1);
-
- /*
- * look for CFI based flash parts fitted to this board
- */
- armflash_map.size = size;
- armflash_map.bankwidth = 4;
- armflash_map.virt = (unsigned long) base;
-
- simple_map_init(&armflash_map);
-
- /*
- * Also, the CFI layer automatically works out what size
- * of chips we have, and does the necessary identification
- * for us automatically.
- */
- mtd = do_map_probe("cfi_probe", &armflash_map);
- if (!mtd)
- return -ENXIO;
-
- mtd->owner = THIS_MODULE;
-
- ret = parse_mtd_partitions(mtd, probes, &parts, (void *)0);
- if (ret > 0) {
- ret = add_mtd_partitions(mtd, parts, ret);
- if (ret)
- printk(KERN_ERR "mtd partition registration "
- "failed: %d\n", ret);
- }
-
- /*
- * If we got an error, free all resources.
- */
- if (ret < 0) {
- del_mtd_partitions(mtd);
- map_destroy(mtd);
- }
-
- return ret;
-}
-
-static void armflash_cfi_exit(void)
-{
- if (mtd) {
- del_mtd_partitions(mtd);
- map_destroy(mtd);
- }
- if (parts)
- kfree(parts);
-}
-
-static int __init armflash_init(void)
-{
- int err = -EBUSY;
- void *base;
-
- if (request_mem_region(FLASH_BASE, FLASH_SIZE, "flash") == NULL)
- goto out;
-
- base = ioremap(FLASH_BASE, FLASH_SIZE);
- err = -ENOMEM;
- if (base == NULL)
- goto release;
-
- err = armflash_cfi_init(base, FLASH_SIZE);
- if (err) {
- iounmap(base);
-release:
- release_mem_region(FLASH_BASE, FLASH_SIZE);
- }
-out:
- return err;
-}
-
-static void __exit armflash_exit(void)
-{
- armflash_cfi_exit();
- iounmap((void *)armflash_map.virt);
- release_mem_region(FLASH_BASE, FLASH_SIZE);
- armflash_flash_exit();
-}
-
-module_init(armflash_init);
-module_exit(armflash_exit);
-
-MODULE_AUTHOR("ARM Ltd");
-MODULE_DESCRIPTION("ARM Integrator CFI map driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Flash on MPC-1211
- *
- * $Id: mpc1211.c,v 1.3 2004/07/14 17:45:40 dwmw2 Exp $
- *
- * (C) 2002 Interface, Saito.K & Jeanne
- *
- * GPL'd
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <asm/io.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-#include <linux/config.h>
-
-static struct mtd_info *flash_mtd;
-static struct mtd_partition *parsed_parts;
-
-struct map_info mpc1211_flash_map = {
- .name = "MPC-1211 FLASH",
- .size = 0x80000,
- .bankwidth = 1,
-};
-
-static struct mtd_partition mpc1211_partitions[] = {
- {
- .name = "IPL & ETH-BOOT",
- .offset = 0x00000000,
- .size = 0x10000,
- },
- {
- .name = "Flash FS",
- .offset = 0x00010000,
- .size = MTDPART_SIZ_FULL,
- }
-};
-
-static int __init init_mpc1211_maps(void)
-{
- int nr_parts;
-
- mpc1211_flash_map.phys = 0;
- mpc1211_flash_map.virt = P2SEGADDR(0);
-
- simple_map_init(&mpc1211_flash_map);
-
- printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n");
- flash_mtd = do_map_probe("jedec_probe", &mpc1211_flash_map);
- if (!flash_mtd) {
- printk(KERN_NOTICE "Flash chips not detected at either possible location.\n");
- return -ENXIO;
- }
- printk(KERN_NOTICE "MPC-1211: Flash at 0x%08lx\n", mpc1211_flash_map.virt & 0x1fffffff);
- flash_mtd->module = THIS_MODULE;
-
- parsed_parts = mpc1211_partitions;
- nr_parts = ARRAY_SIZE(mpc1211_partitions);
-
- add_mtd_partitions(flash_mtd, parsed_parts, nr_parts);
- return 0;
-}
-
-static void __exit cleanup_mpc1211_maps(void)
-{
- if (parsed_parts)
- del_mtd_partitions(flash_mtd);
- else
- del_mtd_device(flash_mtd);
- map_destroy(flash_mtd);
-}
-
-module_init(init_mpc1211_maps);
-module_exit(cleanup_mpc1211_maps);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Saito.K & Jeanne <ksaito@interface.co.jp>");
-MODULE_DESCRIPTION("MTD map driver for MPC-1211 boards. Interface");
+++ /dev/null
-/*
- * NOR Flash memory access on TI Toto board
- *
- * jzhang@ti.com (C) 2003 Texas Instruments.
- *
- * (C) 2002 MontVista Software, Inc.
- *
- * $Id: omap-toto-flash.c,v 1.2 2004/07/12 21:59:44 dwmw2 Exp $
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/errno.h>
-#include <linux/init.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/hardware.h>
-#include <asm/io.h>
-
-
-#ifndef CONFIG_ARCH_OMAP
-#error This is for OMAP architecture only
-#endif
-
-//these lines need be moved to a hardware header file
-#define OMAP_TOTO_FLASH_BASE 0xd8000000
-#define OMAP_TOTO_FLASH_SIZE 0x80000
-
-static struct map_info omap_toto_map_flash = {
- .name = "OMAP Toto flash",
- .bankwidth = 2,
- .virt = OMAP_TOTO_FLASH_BASE,
-};
-
-
-static struct mtd_partition toto_flash_partitions[] = {
- {
- .name = "BootLoader",
- .size = 0x00040000, /* hopefully u-boot will stay 128k + 128*/
- .offset = 0,
- .mask_flags = MTD_WRITEABLE, /* force read-only */
- }, {
- .name = "ReservedSpace",
- .size = 0x00030000,
- .offset = MTDPART_OFS_APPEND,
- //mask_flags: MTD_WRITEABLE, /* force read-only */
- }, {
- .name = "EnvArea", /* bottom 64KiB for env vars */
- .size = MTDPART_SIZ_FULL,
- .offset = MTDPART_OFS_APPEND,
- }
-};
-
-static struct mtd_partition *parsed_parts;
-
-static struct mtd_info *flash_mtd;
-
-static int __init init_flash (void)
-{
-
- struct mtd_partition *parts;
- int nb_parts = 0;
- int parsed_nr_parts = 0;
- const char *part_type;
-
- /*
- * Static partition definition selection
- */
- part_type = "static";
-
- parts = toto_flash_partitions;
- nb_parts = ARRAY_SIZE(toto_flash_partitions);
- omap_toto_map_flash.size = OMAP_TOTO_FLASH_SIZE;
- omap_toto_map_flash.phys = virt_to_phys(OMAP_TOTO_FLASH_BASE);
-
- simple_map_init(&omap_toto_map_flash);
- /*
- * Now let's probe for the actual flash. Do it here since
- * specific machine settings might have been set above.
- */
- printk(KERN_NOTICE "OMAP toto flash: probing %d-bit flash bus\n",
- omap_toto_map_flash.bankwidth*8);
- flash_mtd = do_map_probe("jedec_probe", &omap_toto_map_flash);
- if (!flash_mtd)
- return -ENXIO;
-
- if (parsed_nr_parts > 0) {
- parts = parsed_parts;
- nb_parts = parsed_nr_parts;
- }
-
- if (nb_parts == 0) {
- printk(KERN_NOTICE "OMAP toto flash: no partition info available,"
- "registering whole flash at once\n");
- if (add_mtd_device(flash_mtd)){
- return -ENXIO;
- }
- } else {
- printk(KERN_NOTICE "Using %s partition definition\n",
- part_type);
- return add_mtd_partitions(flash_mtd, parts, nb_parts);
- }
- return 0;
-}
-
-int __init omap_toto_mtd_init(void)
-{
- int status;
-
- if (status = init_flash()) {
- printk(KERN_ERR "OMAP Toto Flash: unable to init map for toto flash\n");
- }
- return status;
-}
-
-static void __exit omap_toto_mtd_cleanup(void)
-{
- if (flash_mtd) {
- del_mtd_partitions(flash_mtd);
- map_destroy(flash_mtd);
- if (parsed_parts)
- kfree(parsed_parts);
- }
-}
-
-module_init(omap_toto_mtd_init);
-module_exit(omap_toto_mtd_cleanup);
-
-MODULE_AUTHOR("Jian Zhang");
-MODULE_DESCRIPTION("OMAP Toto board map driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Flash memory access on Alchemy Pb1550 board
- *
- * $Id: pb1550-flash.c,v 1.4 2004/07/14 17:45:40 dwmw2 Exp $
- *
- * (C) 2004 Embedded Edge, LLC, based on pb1550-flash.c:
- * (C) 2003 Pete Popov <ppopov@pacbell.net>
- *
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <asm/au1000.h>
-#include <asm/pb1550.h>
-
-#ifdef DEBUG_RW
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-static unsigned long window_addr;
-static unsigned long window_size;
-
-
-static struct map_info pb1550_map = {
- .name = "Pb1550 flash",
-};
-
-static unsigned char flash_bankwidth = 4;
-
-/*
- * Support only 64MB NOR Flash parts
- */
-
-#ifdef PB1550_BOTH_BANKS
-/* both banks will be used. Combine the first bank and the first
- * part of the second bank together into a single jffs/jffs2
- * partition.
- */
-static struct mtd_partition pb1550_partitions[] = {
- /* assume boot[2:0]:swap is '0000' or '1000', which translates to:
- * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash
- * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash
- */
- {
- .name = "User FS",
- .size = (0x1FC00000 - 0x18000000),
- .offset = 0x0000000
- },{
- .name = "yamon",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000 - 0x40000), /* last 256KB is yamon env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#elif defined(PB1550_BOOT_ONLY)
-static struct mtd_partition pb1550_partitions[] = {
- /* assume boot[2:0]:swap is '0000' or '1000', which translates to:
- * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash
- */
- {
- .name = "User FS",
- .size = 0x03c00000,
- .offset = 0x0000000
- },{
- .name = "yamon",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000-0x40000), /* last 256KB is yamon env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#elif defined(PB1550_USER_ONLY)
-static struct mtd_partition pb1550_partitions[] = {
- /* assume boot[2:0]:swap is '0000' or '1000', which translates to:
- * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash
- */
- {
- .name = "User FS",
- .size = (0x4000000 - 0x200000), /* reserve 2MB for raw kernel */
- .offset = 0x0000000
- },{
- .name = "raw kernel",
- .size = MTDPART_SIZ_FULL,
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#else
-#error MTD_PB1550 define combo error /* should never happen */
-#endif
-
-#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
-
-static struct mtd_info *mymtd;
-
-/*
- * Probe the flash density and setup window address and size
- * based on user CONFIG options. There are times when we don't
- * want the MTD driver to be probing the boot or user flash,
- * so having the option to enable only one bank is important.
- */
-int setup_flash_params(void)
-{
- u16 boot_swapboot;
- boot_swapboot = (au_readl(MEM_STSTAT) & (0x7<<1)) |
- ((bcsr->status >> 6) & 0x1);
- printk("Pb1550 MTD: boot:swap %d\n", boot_swapboot);
-
- switch (boot_swapboot) {
- case 0: /* 512Mbit devices, both enabled */
- case 1:
- case 8:
- case 9:
-#if defined(PB1550_BOTH_BANKS)
- window_addr = 0x18000000;
- window_size = 0x8000000;
-#elif defined(PB1550_BOOT_ONLY)
- window_addr = 0x1C000000;
- window_size = 0x4000000;
-#else /* USER ONLY */
- window_addr = 0x1E000000;
- window_size = 0x4000000;
-#endif
- break;
- case 0xC:
- case 0xD:
- case 0xE:
- case 0xF:
- /* 64 MB Boot NOR Flash is disabled */
- /* and the start address is moved to 0x0C00000 */
- window_addr = 0x0C000000;
- window_size = 0x4000000;
- default:
- printk("Pb1550 MTD: unsupported boot:swap setting\n");
- return 1;
- }
- return 0;
-}
-
-int __init pb1550_mtd_init(void)
-{
- struct mtd_partition *parts;
- int nb_parts = 0;
-
- /* Default flash bankwidth */
- pb1550_map.bankwidth = flash_bankwidth;
-
- if (setup_flash_params())
- return -ENXIO;
-
- /*
- * Static partition definition selection
- */
- parts = pb1550_partitions;
- nb_parts = NB_OF(pb1550_partitions);
- pb1550_map.size = window_size;
-
- /*
- * Now let's probe for the actual flash. Do it here since
- * specific machine settings might have been set above.
- */
- printk(KERN_NOTICE "Pb1550 flash: probing %d-bit flash bus\n",
- pb1550_map.bankwidth*8);
- pb1550_map.virt =
- (unsigned long)ioremap(window_addr, window_size);
- mymtd = do_map_probe("cfi_probe", &pb1550_map);
- if (!mymtd) return -ENXIO;
- mymtd->owner = THIS_MODULE;
-
- add_mtd_partitions(mymtd, parts, nb_parts);
- return 0;
-}
-
-static void __exit pb1550_mtd_cleanup(void)
-{
- if (mymtd) {
- del_mtd_partitions(mymtd);
- map_destroy(mymtd);
- }
-}
-
-module_init(pb1550_mtd_init);
-module_exit(pb1550_mtd_cleanup);
-
-MODULE_AUTHOR("Embedded Edge, LLC");
-MODULE_DESCRIPTION("Pb1550 mtd map driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Handle mapping of the flash memory access routines on the SBC8240 board.
- *
- * Carolyn Smith, Tektronix, Inc.
- *
- * This code is GPLed
- *
- * $Id: sbc8240.c,v 1.4 2004/07/12 22:38:29 dwmw2 Exp $
- *
- */
-
-/*
- * The SBC8240 has 2 flash banks.
- * Bank 0 is a 512 KiB AMD AM29F040B; 8 x 64 KiB sectors.
- * It contains the U-Boot code (7 sectors) and the environment (1 sector).
- * Bank 1 is 4 x 1 MiB AMD AM29LV800BT; 15 x 64 KiB sectors, 1 x 32 KiB sector,
- * 2 x 8 KiB sectors, 1 x 16 KiB sectors.
- * Both parts are JEDEC compatible.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <asm/io.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/cfi.h>
-
-#ifdef CONFIG_MTD_PARTITIONS
-#include <linux/mtd/partitions.h>
-#endif
-
-#define DEBUG
-
-#ifdef DEBUG
-# define debugk(fmt,args...) printk(fmt ,##args)
-#else
-# define debugk(fmt,args...)
-#endif
-
-
-#define WINDOW_ADDR0 0xFFF00000 /* 512 KiB */
-#define WINDOW_SIZE0 0x00080000
-#define BUSWIDTH0 1
-
-#define WINDOW_ADDR1 0xFF000000 /* 4 MiB */
-#define WINDOW_SIZE1 0x00400000
-#define BUSWIDTH1 8
-
-#define MSG_PREFIX "sbc8240:" /* prefix for our printk()'s */
-#define MTDID "sbc8240-%d" /* for mtdparts= partitioning */
-
-
-static struct map_info sbc8240_map[2] = {
- {
- .name = "sbc8240 Flash Bank #0",
- .size = WINDOW_SIZE0,
- .bankwidth = BUSWIDTH0,
- },
- {
- .name = "sbc8240 Flash Bank #1",
- .size = WINDOW_SIZE1,
- .bankwidth = BUSWIDTH1,
- }
-};
-
-#define NUM_FLASH_BANKS (sizeof(sbc8240_map) / sizeof(struct map_info))
-
-/*
- * The following defines the partition layout of SBC8240 boards.
- *
- * See include/linux/mtd/partitions.h for definition of the
- * mtd_partition structure.
- *
- * The *_max_flash_size is the maximum possible mapped flash size
- * which is not necessarily the actual flash size. It must correspond
- * to the value specified in the mapping definition defined by the
- * "struct map_desc *_io_desc" for the corresponding machine.
- */
-
-#ifdef CONFIG_MTD_PARTITIONS
-
-static struct mtd_partition sbc8240_uboot_partitions [] = {
- /* Bank 0 */
- {
- .name = "U-boot", /* U-Boot Firmware */
- .offset = 0,
- .size = 0x00070000, /* 7 x 64 KiB sectors */
- .mask_flags = MTD_WRITEABLE, /* force read-only */
- },
- {
- .name = "environment", /* U-Boot environment */
- .offset = 0x00070000,
- .size = 0x00010000, /* 1 x 64 KiB sector */
- },
-};
-
-static struct mtd_partition sbc8240_fs_partitions [] = {
- {
- .name = "jffs", /* JFFS filesystem */
- .offset = 0,
- .size = 0x003C0000, /* 4 * 15 * 64KiB */
- },
- {
- .name = "tmp32",
- .offset = 0x003C0000,
- .size = 0x00020000, /* 4 * 32KiB */
- },
- {
- .name = "tmp8a",
- .offset = 0x003E0000,
- .size = 0x00008000, /* 4 * 8KiB */
- },
- {
- .name = "tmp8b",
- .offset = 0x003E8000,
- .size = 0x00008000, /* 4 * 8KiB */
- },
- {
- .name = "tmp16",
- .offset = 0x003F0000,
- .size = 0x00010000, /* 4 * 16KiB */
- }
-};
-
-#define NB_OF(x) (sizeof (x) / sizeof (x[0]))
-
-/* trivial struct to describe partition information */
-struct mtd_part_def
-{
- int nums;
- unsigned char *type;
- struct mtd_partition* mtd_part;
-};
-
-static struct mtd_info *sbc8240_mtd[NUM_FLASH_BANKS];
-static struct mtd_part_def sbc8240_part_banks[NUM_FLASH_BANKS];
-
-
-#endif /* CONFIG_MTD_PARTITIONS */
-
-
-int __init init_sbc8240_mtd (void)
-{
- static struct _cjs {
- u_long addr;
- u_long size;
- } pt[NUM_FLASH_BANKS] = {
- {
- .addr = WINDOW_ADDR0,
- .size = WINDOW_SIZE0
- },
- {
- .addr = WINDOW_ADDR1,
- .size = WINDOW_SIZE1
- },
- };
-
- int devicesfound = 0;
- int i;
-
- for (i = 0; i < NUM_FLASH_BANKS; i++) {
- printk (KERN_NOTICE MSG_PREFIX
- "Probing 0x%08lx at 0x%08lx\n", pt[i].size, pt[i].addr);
-
- sbc8240_map[i].map_priv_1 =
- (unsigned long) ioremap (pt[i].addr, pt[i].size);
- if (!sbc8240_map[i].map_priv_1) {
- printk (MSG_PREFIX "failed to ioremap\n");
- return -EIO;
- }
- simple_map_init(&sbc8240_mtd[i]);
-
- sbc8240_mtd[i] = do_map_probe("jedec_probe", &sbc8240_map[i]);
-
- if (sbc8240_mtd[i]) {
- sbc8240_mtd[i]->module = THIS_MODULE;
- devicesfound++;
- }
- }
-
- if (!devicesfound) {
- printk(KERN_NOTICE MSG_PREFIX
- "No suppported flash chips found!\n");
- return -ENXIO;
- }
-
-#ifdef CONFIG_MTD_PARTITIONS
- sbc8240_part_banks[0].mtd_part = sbc8240_uboot_partitions;
- sbc8240_part_banks[0].type = "static image";
- sbc8240_part_banks[0].nums = NB_OF(sbc8240_uboot_partitions);
- sbc8240_part_banks[1].mtd_part = sbc8240_fs_partitions;
- sbc8240_part_banks[1].type = "static file system";
- sbc8240_part_banks[1].nums = NB_OF(sbc8240_fs_partitions);
-
- for (i = 0; i < NUM_FLASH_BANKS; i++) {
-
- if (!sbc8240_mtd[i]) continue;
- if (sbc8240_part_banks[i].nums == 0) {
- printk (KERN_NOTICE MSG_PREFIX
- "No partition info available, registering whole device\n");
- add_mtd_device(sbc8240_mtd[i]);
- } else {
- printk (KERN_NOTICE MSG_PREFIX
- "Using %s partition definition\n", sbc8240_part_banks[i].mtd_part->name);
- add_mtd_partitions (sbc8240_mtd[i],
- sbc8240_part_banks[i].mtd_part,
- sbc8240_part_banks[i].nums);
- }
- }
-#else
- printk(KERN_NOTICE MSG_PREFIX
- "Registering %d flash banks at once\n", devicesfound);
-
- for (i = 0; i < devicesfound; i++) {
- add_mtd_device(sbc8240_mtd[i]);
- }
-#endif /* CONFIG_MTD_PARTITIONS */
-
- return devicesfound == 0 ? -ENXIO : 0;
-}
-
-static void __exit cleanup_sbc8240_mtd (void)
-{
- int i;
-
- for (i = 0; i < NUM_FLASH_BANKS; i++) {
- if (sbc8240_mtd[i]) {
- del_mtd_device (sbc8240_mtd[i]);
- map_destroy (sbc8240_mtd[i]);
- }
- if (sbc8240_map[i].map_priv_1) {
- iounmap ((void *) sbc8240_map[i].map_priv_1);
- sbc8240_map[i].map_priv_1 = 0;
- }
- }
-}
-
-module_init (init_sbc8240_mtd);
-module_exit (cleanup_sbc8240_mtd);
-
-MODULE_LICENSE ("GPL");
-MODULE_AUTHOR ("Carolyn Smith <carolyn.smith@tektronix.com>");
-MODULE_DESCRIPTION ("MTD map driver for SBC8240 boards");
-
+++ /dev/null
-/*
- * drivers/mtd/nand/au1550nd.c
- *
- * Copyright (C) 2004 Embedded Edge, LLC
- *
- * $Id: au1550nd.c,v 1.5 2004/05/17 07:19:35 ppopov Exp $
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-#include <asm/au1000.h>
-#ifdef CONFIG_MIPS_PB1550
-#include <asm/pb1550.h>
-#endif
-#ifdef CONFIG_MIPS_DB1550
-#include <asm/db1x00.h>
-#endif
-
-
-/*
- * MTD structure for NAND controller
- */
-static struct mtd_info *au1550_mtd = NULL;
-static volatile u32 p_nand;
-static int nand_width = 1; /* default, only x8 supported for now */
-
-/* Internal buffers. Page buffer and oob buffer for one block*/
-static u_char data_buf[512 + 16];
-static u_char oob_buf[16 * 32];
-
-/*
- * Define partitions for flash device
- */
-const static struct mtd_partition partition_info[] = {
-#ifdef CONFIG_MIPS_PB1550
-#define NUM_PARTITIONS 2
- {
- .name = "Pb1550 NAND FS 0",
- .offset = 0,
- .size = 8*1024*1024
- },
- {
- .name = "Pb1550 NAND FS 1",
- .offset = MTDPART_OFS_APPEND,
- .size = MTDPART_SIZ_FULL
- }
-#endif
-#ifdef CONFIG_MIPS_DB1550
-#define NUM_PARTITIONS 2
- {
- .name = "Db1550 NAND FS 0",
- .offset = 0,
- .size = 8*1024*1024
- },
- {
- .name = "Db1550 NAND FS 1",
- .offset = MTDPART_OFS_APPEND,
- .size = MTDPART_SIZ_FULL
- }
-#endif
-};
-
-static inline void write_cmd_reg(u8 cmd)
-{
- if (nand_width)
- *((volatile u8 *)(p_nand + MEM_STNAND_CMD)) = cmd;
- else
- *((volatile u16 *)(p_nand + MEM_STNAND_CMD)) = cmd;
- au_sync();
-}
-
-static inline void write_addr_reg(u8 addr)
-{
- if (nand_width)
- *((volatile u8 *)(p_nand + MEM_STNAND_ADDR)) = addr;
- else
- *((volatile u16 *)(p_nand + MEM_STNAND_ADDR)) = addr;
- au_sync();
-}
-
-static inline void write_data_reg(u8 data)
-{
- if (nand_width)
- *((volatile u8 *)(p_nand + MEM_STNAND_DATA)) = data;
- else
- *((volatile u16 *)(p_nand + MEM_STNAND_DATA)) = data;
- au_sync();
-}
-
-static inline u32 read_data_reg(void)
-{
- u32 data;
- if (nand_width) {
- data = *((volatile u8 *)(p_nand + MEM_STNAND_DATA));
- au_sync();
- }
- else {
- data = *((volatile u16 *)(p_nand + MEM_STNAND_DATA));
- au_sync();
- }
- return data;
-}
-
-void au1550_hwcontrol(struct mtd_info *mtd, int cmd)
-{
-}
-
-int au1550_device_ready(struct mtd_info *mtd)
-{
- int ready;
- ready = (au_readl(MEM_STSTAT) & 0x1) ? 1 : 0;
- return ready;
-}
-
-static u_char au1550_nand_read_byte(struct mtd_info *mtd)
-{
- u_char ret;
- ret = read_data_reg();
- return ret;
-}
-
-static void au1550_nand_write_byte(struct mtd_info *mtd, u_char byte)
-{
- write_data_reg((u8)byte);
-}
-
-static void
-au1550_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
-
- for (i=0; i<len; i++)
- write_data_reg(buf[i]);
-}
-
-static void
-au1550_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
-{
- int i;
-
- for (i=0; i<len; i++)
- buf[i] = (u_char)read_data_reg();
-}
-
-static int
-au1550_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
-
- for (i=0; i<len; i++)
- if (buf[i] != (u_char)read_data_reg())
- return -EFAULT;
-
- return 0;
-}
-
-static void au1550_nand_select_chip(struct mtd_info *mtd, int chip)
-{
- switch(chip) {
- case -1:
- /* deassert chip enable */
- au_writel(au_readl(MEM_STNDCTL) & ~0x20 , MEM_STNDCTL);
- break;
- case 0:
- /* assert (force assert) chip enable */
- au_writel(au_readl(MEM_STNDCTL) | 0x20 , MEM_STNDCTL);
- break;
-
- default:
- BUG();
- }
-}
-
-static void au1550_nand_command (struct mtd_info *mtd, unsigned command,
- int column, int page_addr)
-{
- register struct nand_chip *this = mtd->priv;
-
- /*
- * Write out the command to the device.
- */
- if (command == NAND_CMD_SEQIN) {
- int readcmd;
-
- if (column >= mtd->oobblock) {
- /* OOB area */
- column -= mtd->oobblock;
- readcmd = NAND_CMD_READOOB;
- } else if (column < 256) {
- /* First 256 bytes --> READ0 */
- readcmd = NAND_CMD_READ0;
- } else {
- column -= 256;
- readcmd = NAND_CMD_READ1;
- }
- write_cmd_reg(readcmd);
- }
- write_cmd_reg(command);
-
- if (column != -1 || page_addr != -1) {
-
- /* Serially input address */
- if (column != -1)
- write_addr_reg(column);
- if (page_addr != -1) {
- write_addr_reg((unsigned char) (page_addr & 0xff));
- write_addr_reg(((page_addr >> 8) & 0xff));
- /* One more address cycle for higher density devices */
- if (mtd->size & 0x0c000000)
- write_addr_reg((unsigned char) ((page_addr >> 16) & 0x0f));
- }
- }
-
- switch (command) {
-
- case NAND_CMD_PAGEPROG:
- case NAND_CMD_ERASE1:
- case NAND_CMD_ERASE2:
- case NAND_CMD_SEQIN:
- case NAND_CMD_STATUS:
- break;
-
- case NAND_CMD_RESET:
- if (this->dev_ready)
- break;
- udelay(this->chip_delay);
- write_cmd_reg(NAND_CMD_STATUS);
- while ( !(read_data_reg() & 0x40));
- return;
-
- /* This applies to read commands */
- default:
- udelay (this->chip_delay);
- }
-
- /* wait until command is processed */
- while (!this->dev_ready(mtd));
-}
-
-
-/*
- * Main initialization routine
- */
-int __init au1550_init (void)
-{
- struct nand_chip *this;
- u16 boot_swapboot = 0; /* default value */
- u32 mem_time;
-
- /* Allocate memory for MTD device structure and private data */
- au1550_mtd = kmalloc (sizeof(struct mtd_info) +
- sizeof (struct nand_chip), GFP_KERNEL);
- if (!au1550_mtd) {
- printk ("Unable to allocate NAND MTD dev structure.\n");
- return -ENOMEM;
- }
-
- /* Get pointer to private data */
- this = (struct nand_chip *) (&au1550_mtd[1]);
-
- /* Initialize structures */
- memset((char *) au1550_mtd, 0, sizeof(struct mtd_info));
- memset((char *) this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- au1550_mtd->priv = this;
-
- /* disable interrupts */
- au_writel(au_readl(MEM_STNDCTL) & ~(1<<8), MEM_STNDCTL);
-
- /* disable NAND boot */
- au_writel(au_readl(MEM_STNDCTL) & ~(1<<0), MEM_STNDCTL);
-
-#ifdef CONFIG_MIPS_PB1550
- /* set gpio206 high */
- au_writel(au_readl(GPIO2_DIR) & ~(1<<6), GPIO2_DIR);
-
- boot_swapboot = (au_readl(MEM_STSTAT) & (0x7<<1)) |
- ((bcsr->status >> 6) & 0x1);
- switch (boot_swapboot) {
- case 0:
- case 2:
- case 8:
- case 0xC:
- case 0xD:
- /* x16 NAND Flash */
- nand_width = 0;
- printk("Pb1550 NAND: 16-bit NAND not supported by MTD\n");
- break;
- case 1:
- case 9:
- case 3:
- case 0xE:
- case 0xF:
- /* x8 NAND Flash */
- nand_width = 1;
- break;
- default:
- printk("Pb1550 NAND: bad boot:swap\n");
- kfree(au1550_mtd);
- return 1;
- }
-
- /* Configure RCE1 - should be done by YAMON */
- au_writel(0x5 | (nand_width << 22), MEM_STCFG1);
- au_writel(NAND_TIMING, MEM_STTIME1);
- mem_time = au_readl(MEM_STTIME1);
- au_sync();
-
- /* setup and enable chip select */
- /* we really need to decode offsets only up till 0x20 */
- au_writel((1<<28) | (NAND_PHYS_ADDR>>4) |
- (((NAND_PHYS_ADDR + 0x1000)-1) & (0x3fff<<18)>>18),
- MEM_STADDR1);
- au_sync();
-#endif
-
-#ifdef CONFIG_MIPS_DB1550
- /* Configure RCE1 - should be done by YAMON */
- au_writel(0x00400005, MEM_STCFG1);
- au_writel(0x00007774, MEM_STTIME1);
- au_writel(0x12000FFF, MEM_STADDR1);
-#endif
-
- p_nand = (volatile struct nand_regs *)ioremap(NAND_PHYS_ADDR, 0x1000);
-
- /* Set address of hardware control function */
- this->hwcontrol = au1550_hwcontrol;
- this->dev_ready = au1550_device_ready;
- /* 30 us command delay time */
- this->chip_delay = 30;
-
- this->cmdfunc = au1550_nand_command;
- this->select_chip = au1550_nand_select_chip;
- this->write_byte = au1550_nand_write_byte;
- this->read_byte = au1550_nand_read_byte;
- this->write_buf = au1550_nand_write_buf;
- this->read_buf = au1550_nand_read_buf;
- this->verify_buf = au1550_nand_verify_buf;
- this->eccmode = NAND_ECC_SOFT;
-
- /* Set internal data buffer */
- this->data_buf = data_buf;
- this->oob_buf = oob_buf;
-
- /* Scan to find existence of the device */
- if (nand_scan (au1550_mtd, 1)) {
- kfree (au1550_mtd);
- return -ENXIO;
- }
-
- /* Register the partitions */
- add_mtd_partitions(au1550_mtd, partition_info, NUM_PARTITIONS);
-
- return 0;
-}
-
-module_init(au1550_init);
-
-/*
- * Clean up routine
- */
-#ifdef MODULE
-static void __exit au1550_cleanup (void)
-{
- struct nand_chip *this = (struct nand_chip *) &au1550_mtd[1];
-
- iounmap ((void *)p_nand);
-
- /* Unregister partitions */
- del_mtd_partitions(au1550_mtd);
-
- /* Unregister the device */
- del_mtd_device (au1550_mtd);
-
- /* Free the MTD device structure */
- kfree (au1550_mtd);
-}
-module_exit(au1550_cleanup);
-#endif
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Embedded Edge, LLC");
-MODULE_DESCRIPTION("Board-specific glue layer for NAND flash on Pb1550 board");
+++ /dev/null
-/*
- * drivers/mtd/nand/diskonchip.c
- *
- * (C) 2003 Red Hat, Inc.
- *
- * Author: David Woodhouse <dwmw2@infradead.org>
- *
- * Interface to generic NAND code for M-Systems DiskOnChip devices
- *
- * $Id: diskonchip.c,v 1.23 2004/07/13 00:14:35 dbrown Exp $
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/doc2000.h>
-#include <linux/mtd/compatmac.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/inftl.h>
-
-/* Where to look for the devices? */
-#ifndef CONFIG_MTD_DOCPROBE_ADDRESS
-#define CONFIG_MTD_DOCPROBE_ADDRESS 0
-#endif
-
-static unsigned long __initdata doc_locations[] = {
-#if defined (__alpha__) || defined(__i386__) || defined(__x86_64__)
-#ifdef CONFIG_MTD_DOCPROBE_HIGH
- 0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000,
- 0xfffd0000, 0xfffd2000, 0xfffd4000, 0xfffd6000,
- 0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000,
- 0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000,
- 0xfffe8000, 0xfffea000, 0xfffec000, 0xfffee000,
-#else /* CONFIG_MTD_DOCPROBE_HIGH */
- 0xc8000, 0xca000, 0xcc000, 0xce000,
- 0xd0000, 0xd2000, 0xd4000, 0xd6000,
- 0xd8000, 0xda000, 0xdc000, 0xde000,
- 0xe0000, 0xe2000, 0xe4000, 0xe6000,
- 0xe8000, 0xea000, 0xec000, 0xee000,
-#endif /* CONFIG_MTD_DOCPROBE_HIGH */
-#elif defined(__PPC__)
- 0xe4000000,
-#elif defined(CONFIG_MOMENCO_OCELOT)
- 0x2f000000,
- 0xff000000,
-#elif defined(CONFIG_MOMENCO_OCELOT_G) || defined (CONFIG_MOMENCO_OCELOT_C)
- 0xff000000,
-##else
-#warning Unknown architecture for DiskOnChip. No default probe locations defined
-#endif
- 0xffffffff };
-
-static struct mtd_info *doclist = NULL;
-
-struct doc_priv {
- unsigned long virtadr;
- unsigned long physadr;
- u_char ChipID;
- u_char CDSNControl;
- int chips_per_floor; /* The number of chips detected on each floor */
- int curfloor;
- int curchip;
- int mh0_page;
- int mh1_page;
- struct mtd_info *nextdoc;
-};
-
-/* Max number of eraseblocks to scan (from start of device) for the (I)NFTL
- MediaHeader. The spec says to just keep going, I think, but that's just
- silly. */
-#define MAX_MEDIAHEADER_SCAN 8
-
-/* This is the syndrome computed by the HW ecc generator upon reading an empty
- page, one with all 0xff for data and stored ecc code. */
-static u_char empty_read_syndrome[6] = { 0x26, 0xff, 0x6d, 0x47, 0x73, 0x7a };
-/* This is the ecc value computed by the HW ecc generator upon writing an empty
- page, one with all 0xff for data. */
-static u_char empty_write_ecc[6] = { 0x4b, 0x00, 0xe2, 0x0e, 0x93, 0xf7 };
-
-#define INFTL_BBT_RESERVED_BLOCKS 4
-
-#define DoC_is_Millennium(doc) ((doc)->ChipID == DOC_ChipID_DocMil)
-#define DoC_is_2000(doc) ((doc)->ChipID == DOC_ChipID_Doc2k)
-
-static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd);
-static void doc200x_select_chip(struct mtd_info *mtd, int chip);
-
-static int debug=0;
-MODULE_PARM(debug, "i");
-
-static int try_dword=1;
-MODULE_PARM(try_dword, "i");
-
-static int no_ecc_failures=0;
-MODULE_PARM(no_ecc_failures, "i");
-
-static int no_autopart=0;
-MODULE_PARM(no_autopart, "i");
-
-#ifdef MTD_NAND_DISKONCHIP_BBTWRITE
-static int inftl_bbt_write=1;
-#else
-static int inftl_bbt_write=0;
-#endif
-MODULE_PARM(inftl_bbt_write, "i");
-
-static unsigned long doc_config_location = CONFIG_MTD_DOCPROBE_ADDRESS;
-MODULE_PARM(doc_config_location, "l");
-MODULE_PARM_DESC(doc_config_location, "Physical memory address at which to probe for DiskOnChip");
-
-static void DoC_Delay(struct doc_priv *doc, unsigned short cycles)
-{
- volatile char dummy;
- int i;
-
- for (i = 0; i < cycles; i++) {
- if (DoC_is_Millennium(doc))
- dummy = ReadDOC(doc->virtadr, NOP);
- else
- dummy = ReadDOC(doc->virtadr, DOCStatus);
- }
-
-}
-/* DOC_WaitReady: Wait for RDY line to be asserted by the flash chip */
-static int _DoC_WaitReady(struct doc_priv *doc)
-{
- unsigned long docptr = doc->virtadr;
- unsigned long timeo = jiffies + (HZ * 10);
-
- if(debug) printk("_DoC_WaitReady...\n");
- /* Out-of-line routine to wait for chip response */
- while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
- if (time_after(jiffies, timeo)) {
- printk("_DoC_WaitReady timed out.\n");
- return -EIO;
- }
- udelay(1);
- cond_resched();
- }
-
- return 0;
-}
-
-static inline int DoC_WaitReady(struct doc_priv *doc)
-{
- unsigned long docptr = doc->virtadr;
- int ret = 0;
-
- DoC_Delay(doc, 4);
-
- if (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B))
- /* Call the out-of-line routine to wait */
- ret = _DoC_WaitReady(doc);
-
- DoC_Delay(doc, 2);
- if(debug) printk("DoC_WaitReady OK\n");
- return ret;
-}
-
-static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
-
- if(debug)printk("write_byte %02x\n", datum);
- WriteDOC(datum, docptr, CDSNSlowIO);
- WriteDOC(datum, docptr, 2k_CDSN_IO);
-}
-
-static u_char doc2000_read_byte(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- u_char ret;
-
- ReadDOC(docptr, CDSNSlowIO);
- DoC_Delay(doc, 2);
- ret = ReadDOC(docptr, 2k_CDSN_IO);
- if (debug) printk("read_byte returns %02x\n", ret);
- return ret;
-}
-
-static void doc2000_writebuf(struct mtd_info *mtd,
- const u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int i;
- if (debug)printk("writebuf of %d bytes: ", len);
- for (i=0; i < len; i++) {
- WriteDOC_(buf[i], docptr, DoC_2k_CDSN_IO + i);
- if (debug && i < 16)
- printk("%02x ", buf[i]);
- }
- if (debug) printk("\n");
-}
-
-static void doc2000_readbuf(struct mtd_info *mtd,
- u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int i;
-
- if (debug)printk("readbuf of %d bytes: ", len);
-
- for (i=0; i < len; i++) {
- buf[i] = ReadDOC(docptr, 2k_CDSN_IO + i);
- }
-}
-
-static void doc2000_readbuf_dword(struct mtd_info *mtd,
- u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int i;
-
- if (debug) printk("readbuf_dword of %d bytes: ", len);
-
- if (unlikely((((unsigned long)buf)|len) & 3)) {
- for (i=0; i < len; i++) {
- *(uint8_t *)(&buf[i]) = ReadDOC(docptr, 2k_CDSN_IO + i);
- }
- } else {
- for (i=0; i < len; i+=4) {
- *(uint32_t*)(&buf[i]) = readl(docptr + DoC_2k_CDSN_IO + i);
- }
- }
-}
-
-static int doc2000_verifybuf(struct mtd_info *mtd,
- const u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int i;
-
- for (i=0; i < len; i++)
- if (buf[i] != ReadDOC(docptr, 2k_CDSN_IO))
- return -EFAULT;
- return 0;
-}
-
-static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- uint16_t ret;
-
- doc200x_select_chip(mtd, nr);
- doc200x_hwcontrol(mtd, NAND_CTL_SETCLE);
- this->write_byte(mtd, NAND_CMD_READID);
- doc200x_hwcontrol(mtd, NAND_CTL_CLRCLE);
- doc200x_hwcontrol(mtd, NAND_CTL_SETALE);
- this->write_byte(mtd, 0);
- doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
-
- ret = this->read_byte(mtd) << 8;
- ret |= this->read_byte(mtd);
-
- if (doc->ChipID == DOC_ChipID_Doc2k && try_dword && !nr) {
- /* First chip probe. See if we get same results by 32-bit access */
- union {
- uint32_t dword;
- uint8_t byte[4];
- } ident;
- unsigned long docptr = doc->virtadr;
-
- doc200x_hwcontrol(mtd, NAND_CTL_SETCLE);
- doc2000_write_byte(mtd, NAND_CMD_READID);
- doc200x_hwcontrol(mtd, NAND_CTL_CLRCLE);
- doc200x_hwcontrol(mtd, NAND_CTL_SETALE);
- doc2000_write_byte(mtd, 0);
- doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
-
- ident.dword = readl(docptr + DoC_2k_CDSN_IO);
- if (((ident.byte[0] << 8) | ident.byte[1]) == ret) {
- printk(KERN_INFO "DiskOnChip 2000 responds to DWORD access\n");
- this->read_buf = &doc2000_readbuf_dword;
- }
- }
-
- return ret;
-}
-
-static void __init doc2000_count_chips(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- uint16_t mfrid;
- int i;
-
- /* Max 4 chips per floor on DiskOnChip 2000 */
- doc->chips_per_floor = 4;
-
- /* Find out what the first chip is */
- mfrid = doc200x_ident_chip(mtd, 0);
-
- /* Find how many chips in each floor. */
- for (i = 1; i < 4; i++) {
- if (doc200x_ident_chip(mtd, i) != mfrid)
- break;
- }
- doc->chips_per_floor = i;
- printk(KERN_DEBUG "Detected %d chips per floor.\n", i);
-}
-
-static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
-{
- struct doc_priv *doc = (void *)this->priv;
-
- int status;
-
- DoC_WaitReady(doc);
- this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
- DoC_WaitReady(doc);
- status = (int)this->read_byte(mtd);
-
- return status;
-}
-
-static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
-
- WriteDOC(datum, docptr, CDSNSlowIO);
- WriteDOC(datum, docptr, Mil_CDSN_IO);
- WriteDOC(datum, docptr, WritePipeTerm);
-}
-
-static u_char doc2001_read_byte(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
-
- //ReadDOC(docptr, CDSNSlowIO);
- /* 11.4.5 -- delay twice to allow extended length cycle */
- DoC_Delay(doc, 2);
- ReadDOC(docptr, ReadPipeInit);
- //return ReadDOC(docptr, Mil_CDSN_IO);
- return ReadDOC(docptr, LastDataRead);
-}
-
-static void doc2001_writebuf(struct mtd_info *mtd,
- const u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int i;
-
- for (i=0; i < len; i++)
- WriteDOC_(buf[i], docptr, DoC_Mil_CDSN_IO + i);
- /* Terminate write pipeline */
- WriteDOC(0x00, docptr, WritePipeTerm);
-}
-
-static void doc2001_readbuf(struct mtd_info *mtd,
- u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int i;
-
- /* Start read pipeline */
- ReadDOC(docptr, ReadPipeInit);
-
- for (i=0; i < len-1; i++)
- buf[i] = ReadDOC(docptr, Mil_CDSN_IO);
-
- /* Terminate read pipeline */
- buf[i] = ReadDOC(docptr, LastDataRead);
-}
-
-static int doc2001_verifybuf(struct mtd_info *mtd,
- const u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int i;
-
- /* Start read pipeline */
- ReadDOC(docptr, ReadPipeInit);
-
- for (i=0; i < len-1; i++)
- if (buf[i] != ReadDOC(docptr, Mil_CDSN_IO)) {
- ReadDOC(docptr, LastDataRead);
- return i;
- }
- if (buf[i] != ReadDOC(docptr, LastDataRead))
- return i;
- return 0;
-}
-
-static void doc200x_select_chip(struct mtd_info *mtd, int chip)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int floor = 0;
-
- /* 11.4.4 -- deassert CE before changing chip */
- doc200x_hwcontrol(mtd, NAND_CTL_CLRNCE);
-
- if(debug)printk("select chip (%d)\n", chip);
-
- if (chip == -1)
- return;
-
- floor = chip / doc->chips_per_floor;
- chip -= (floor * doc->chips_per_floor);
-
- WriteDOC(floor, docptr, FloorSelect);
- WriteDOC(chip, docptr, CDSNDeviceSelect);
-
- doc200x_hwcontrol(mtd, NAND_CTL_SETNCE);
-
- doc->curchip = chip;
- doc->curfloor = floor;
-}
-
-static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
-
- switch(cmd) {
- case NAND_CTL_SETNCE:
- doc->CDSNControl |= CDSN_CTRL_CE;
- break;
- case NAND_CTL_CLRNCE:
- doc->CDSNControl &= ~CDSN_CTRL_CE;
- break;
- case NAND_CTL_SETCLE:
- doc->CDSNControl |= CDSN_CTRL_CLE;
- break;
- case NAND_CTL_CLRCLE:
- doc->CDSNControl &= ~CDSN_CTRL_CLE;
- break;
- case NAND_CTL_SETALE:
- doc->CDSNControl |= CDSN_CTRL_ALE;
- break;
- case NAND_CTL_CLRALE:
- doc->CDSNControl &= ~CDSN_CTRL_ALE;
- break;
- case NAND_CTL_SETWP:
- doc->CDSNControl |= CDSN_CTRL_WP;
- break;
- case NAND_CTL_CLRWP:
- doc->CDSNControl &= ~CDSN_CTRL_WP;
- break;
- }
- if (debug)printk("hwcontrol(%d): %02x\n", cmd, doc->CDSNControl);
- WriteDOC(doc->CDSNControl, docptr, CDSNControl);
- /* 11.4.3 -- 4 NOPs after CSDNControl write */
- DoC_Delay(doc, 4);
-}
-
-static int doc200x_dev_ready(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
-
- /* 11.4.2 -- must NOP four times before checking FR/B# */
- DoC_Delay(doc, 4);
- if (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
- if(debug)
- printk("not ready\n");
- return 0;
- }
- /* 11.4.2 -- Must NOP twice if it's ready */
- DoC_Delay(doc, 2);
- if (debug)printk("was ready\n");
- return 1;
-}
-
-static int doc200x_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
-{
- /* This is our last resort if we couldn't find or create a BBT. Just
- pretend all blocks are good. */
- return 0;
-}
-
-static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
-
- /* Prime the ECC engine */
- switch(mode) {
- case NAND_ECC_READ:
- WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
- WriteDOC(DOC_ECC_EN, docptr, ECCConf);
- break;
- case NAND_ECC_WRITE:
- WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
- WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, ECCConf);
- break;
- }
-}
-
-/* This code is only called on write */
-static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
- unsigned char *ecc_code)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- int i;
- int emptymatch = 1;
-
- /* flush the pipeline */
- if (DoC_is_2000(doc)) {
- WriteDOC(doc->CDSNControl & ~CDSN_CTRL_FLASH_IO, docptr, CDSNControl);
- WriteDOC(0, docptr, 2k_CDSN_IO);
- WriteDOC(0, docptr, 2k_CDSN_IO);
- WriteDOC(0, docptr, 2k_CDSN_IO);
- WriteDOC(doc->CDSNControl, docptr, CDSNControl);
- } else {
- WriteDOC(0, docptr, NOP);
- WriteDOC(0, docptr, NOP);
- WriteDOC(0, docptr, NOP);
- }
-
- for (i = 0; i < 6; i++) {
- ecc_code[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i);
- if (ecc_code[i] != empty_write_ecc[i])
- emptymatch = 0;
- }
- WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
-#if 0
- /* If emptymatch=1, we might have an all-0xff data buffer. Check. */
- if (emptymatch) {
- /* Note: this somewhat expensive test should not be triggered
- often. It could be optimized away by examining the data in
- the writebuf routine, and remembering the result. */
- for (i = 0; i < 512; i++) {
- if (dat[i] == 0xff) continue;
- emptymatch = 0;
- break;
- }
- }
- /* If emptymatch still =1, we do have an all-0xff data buffer.
- Return all-0xff ecc value instead of the computed one, so
- it'll look just like a freshly-erased page. */
- if (emptymatch) memset(ecc_code, 0xff, 6);
-#endif
- return 0;
-}
-
-static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
-{
- int i, ret = 0;
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- unsigned long docptr = doc->virtadr;
- volatile u_char dummy;
- int emptymatch = 1;
-
- /* flush the pipeline */
- if (DoC_is_2000(doc)) {
- dummy = ReadDOC(docptr, 2k_ECCStatus);
- dummy = ReadDOC(docptr, 2k_ECCStatus);
- dummy = ReadDOC(docptr, 2k_ECCStatus);
- } else {
- dummy = ReadDOC(docptr, ECCConf);
- dummy = ReadDOC(docptr, ECCConf);
- dummy = ReadDOC(docptr, ECCConf);
- }
-
- /* Error occured ? */
- if (dummy & 0x80) {
- for (i = 0; i < 6; i++) {
- calc_ecc[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i);
- if (calc_ecc[i] != empty_read_syndrome[i])
- emptymatch = 0;
- }
- /* If emptymatch=1, the read syndrome is consistent with an
- all-0xff data and stored ecc block. Check the stored ecc. */
- if (emptymatch) {
- for (i = 0; i < 6; i++) {
- if (read_ecc[i] == 0xff) continue;
- emptymatch = 0;
- break;
- }
- }
- /* If emptymatch still =1, check the data block. */
- if (emptymatch) {
- /* Note: this somewhat expensive test should not be triggered
- often. It could be optimized away by examining the data in
- the readbuf routine, and remembering the result. */
- for (i = 0; i < 512; i++) {
- if (dat[i] == 0xff) continue;
- emptymatch = 0;
- break;
- }
- }
- /* If emptymatch still =1, this is almost certainly a freshly-
- erased block, in which case the ECC will not come out right.
- We'll suppress the error and tell the caller everything's
- OK. Because it is. */
- if (!emptymatch) ret = doc_decode_ecc (dat, calc_ecc);
- if (ret > 0)
- printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret);
- }
- WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
- if (no_ecc_failures && (ret == -1)) {
- printk(KERN_ERR "suppressing ECC failure\n");
- ret = 0;
- }
- return ret;
-}
-
-//u_char mydatabuf[528];
-
-static struct nand_oobinfo doc200x_oobinfo = {
- .useecc = MTD_NANDECC_AUTOPLACE,
- .eccbytes = 6,
- .eccpos = {0, 1, 2, 3, 4, 5},
- .oobfree = { {8, 8} }
-};
-
-/* Find the (I)NFTL Media Header, and optionally also the mirror media header.
- On sucessful return, buf will contain a copy of the media header for
- further processing. id is the string to scan for, and will presumably be
- either "ANAND" or "BNAND". If findmirror=1, also look for the mirror media
- header. The page #s of the found media headers are placed in mh0_page and
- mh1_page in the DOC private structure. */
-static int __init find_media_headers(struct mtd_info *mtd, u_char *buf,
- const char *id, int findmirror)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- int offs, end = (MAX_MEDIAHEADER_SCAN << this->phys_erase_shift);
- int ret, retlen;
-
- end = min(end, mtd->size); // paranoia
- for (offs = 0; offs < end; offs += mtd->erasesize) {
- ret = mtd->read(mtd, offs, mtd->oobblock, &retlen, buf);
- if (retlen != mtd->oobblock) continue;
- if (ret) {
- printk(KERN_WARNING "ECC error scanning DOC at 0x%x\n",
- offs);
- }
- if (memcmp(buf, id, 6)) continue;
- printk(KERN_INFO "Found DiskOnChip %s Media Header at 0x%x\n", id, offs);
- if (doc->mh0_page == -1) {
- doc->mh0_page = offs >> this->page_shift;
- if (!findmirror) return 1;
- continue;
- }
- doc->mh1_page = offs >> this->page_shift;
- return 2;
- }
- if (doc->mh0_page == -1) {
- printk(KERN_WARNING "DiskOnChip %s Media Header not found.\n", id);
- return 0;
- }
- /* Only one mediaheader was found. We want buf to contain a
- mediaheader on return, so we'll have to re-read the one we found. */
- offs = doc->mh0_page << this->page_shift;
- ret = mtd->read(mtd, offs, mtd->oobblock, &retlen, buf);
- if (retlen != mtd->oobblock) {
- /* Insanity. Give up. */
- printk(KERN_ERR "Read DiskOnChip Media Header once, but can't reread it???\n");
- return 0;
- }
- return 1;
-}
-
-static inline int __init nftl_partscan(struct mtd_info *mtd,
- struct mtd_partition *parts)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- u_char *buf = this->data_buf;
- struct NFTLMediaHeader *mh = (struct NFTLMediaHeader *) buf;
- const int psize = 1 << this->page_shift;
- int blocks, maxblocks;
- int offs, numheaders;
-
- if (!(numheaders=find_media_headers(mtd, buf, "ANAND", 1))) return 0;
-
-//#ifdef CONFIG_MTD_DEBUG_VERBOSE
-// if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
- printk(KERN_INFO " DataOrgID = %s\n"
- " NumEraseUnits = %d\n"
- " FirstPhysicalEUN = %d\n"
- " FormattedSize = %d\n"
- " UnitSizeFactor = %d\n",
- mh->DataOrgID, mh->NumEraseUnits,
- mh->FirstPhysicalEUN, mh->FormattedSize,
- mh->UnitSizeFactor);
-//#endif
-
- blocks = mtd->size >> this->phys_erase_shift;
- maxblocks = min(32768, mtd->erasesize - psize);
-
- if (mh->UnitSizeFactor == 0x00) {
- /* Auto-determine UnitSizeFactor. The constraints are:
- - There can be at most 32768 virtual blocks.
- - There can be at most (virtual block size - page size)
- virtual blocks (because MediaHeader+BBT must fit in 1).
- */
- mh->UnitSizeFactor = 0xff;
- while (blocks > maxblocks) {
- blocks >>= 1;
- maxblocks = min(32768, (maxblocks << 1) + psize);
- mh->UnitSizeFactor--;
- }
- printk(KERN_WARNING "UnitSizeFactor=0x00 detected. Correct value is assumed to be 0x%02x.\n", mh->UnitSizeFactor);
- }
-
- /* NOTE: The lines below modify internal variables of the NAND and MTD
- layers; variables with have already been configured by nand_scan.
- Unfortunately, we didn't know before this point what these values
- should be. Thus, this code is somewhat dependant on the exact
- implementation of the NAND layer. */
- if (mh->UnitSizeFactor != 0xff) {
- this->bbt_erase_shift += (0xff - mh->UnitSizeFactor);
- mtd->erasesize <<= (0xff - mh->UnitSizeFactor);
- printk(KERN_INFO "Setting virtual erase size to %d\n", mtd->erasesize);
- blocks = mtd->size >> this->bbt_erase_shift;
- maxblocks = min(32768, mtd->erasesize - psize);
- }
-
- if (blocks > maxblocks) {
- printk(KERN_ERR "UnitSizeFactor of 0x%02x is inconsistent with device size. Aborting.\n", mh->UnitSizeFactor);
- return 0;
- }
-
- /* Skip past the media headers. */
- offs = max(doc->mh0_page, doc->mh1_page);
- offs <<= this->page_shift;
- offs += mtd->erasesize;
-
- //parts[0].name = " DiskOnChip Boot / Media Header partition";
- //parts[0].offset = 0;
- //parts[0].size = offs;
-
- parts[0].name = " DiskOnChip BDTL partition";
- parts[0].offset = offs;
- parts[0].size = (mh->NumEraseUnits - numheaders) << this->bbt_erase_shift;
-
- offs += parts[0].size;
- if (offs < mtd->size) {
- parts[1].name = " DiskOnChip Remainder partition";
- parts[1].offset = offs;
- parts[1].size = mtd->size - offs;
- return 2;
- }
- return 1;
-}
-
-/* This is a stripped-down copy of the code in inftlmount.c */
-static inline int __init inftl_partscan(struct mtd_info *mtd,
- struct mtd_partition *parts)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- u_char *buf = this->data_buf;
- struct INFTLMediaHeader *mh = (struct INFTLMediaHeader *) buf;
- struct INFTLPartition *ip;
- int numparts = 0;
- int blocks;
- int vshift, lastvunit = 0;
- int i;
- int end = mtd->size;
-
- if (inftl_bbt_write)
- end -= (INFTL_BBT_RESERVED_BLOCKS << this->phys_erase_shift);
-
- if (!find_media_headers(mtd, buf, "BNAND", 0)) return 0;
- doc->mh1_page = doc->mh0_page + (4096 >> this->page_shift);
-
- mh->NoOfBootImageBlocks = le32_to_cpu(mh->NoOfBootImageBlocks);
- mh->NoOfBinaryPartitions = le32_to_cpu(mh->NoOfBinaryPartitions);
- mh->NoOfBDTLPartitions = le32_to_cpu(mh->NoOfBDTLPartitions);
- mh->BlockMultiplierBits = le32_to_cpu(mh->BlockMultiplierBits);
- mh->FormatFlags = le32_to_cpu(mh->FormatFlags);
- mh->PercentUsed = le32_to_cpu(mh->PercentUsed);
-
-//#ifdef CONFIG_MTD_DEBUG_VERBOSE
-// if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
- printk(KERN_INFO " bootRecordID = %s\n"
- " NoOfBootImageBlocks = %d\n"
- " NoOfBinaryPartitions = %d\n"
- " NoOfBDTLPartitions = %d\n"
- " BlockMultiplerBits = %d\n"
- " FormatFlgs = %d\n"
- " OsakVersion = 0x%x\n"
- " PercentUsed = %d\n",
- mh->bootRecordID, mh->NoOfBootImageBlocks,
- mh->NoOfBinaryPartitions,
- mh->NoOfBDTLPartitions,
- mh->BlockMultiplierBits, mh->FormatFlags,
- mh->OsakVersion, mh->PercentUsed);
-//#endif
-
- vshift = this->phys_erase_shift + mh->BlockMultiplierBits;
-
- blocks = mtd->size >> vshift;
- if (blocks > 32768) {
- printk(KERN_ERR "BlockMultiplierBits=%d is inconsistent with device size. Aborting.\n", mh->BlockMultiplierBits);
- return 0;
- }
-
- blocks = doc->chips_per_floor << (this->chip_shift - this->phys_erase_shift);
- if (inftl_bbt_write && (blocks > mtd->erasesize)) {
- printk(KERN_ERR "Writeable BBTs spanning more than one erase block are not yet supported. FIX ME!\n");
- return 0;
- }
-
- /* Scan the partitions */
- for (i = 0; (i < 4); i++) {
- ip = &(mh->Partitions[i]);
- ip->virtualUnits = le32_to_cpu(ip->virtualUnits);
- ip->firstUnit = le32_to_cpu(ip->firstUnit);
- ip->lastUnit = le32_to_cpu(ip->lastUnit);
- ip->flags = le32_to_cpu(ip->flags);
- ip->spareUnits = le32_to_cpu(ip->spareUnits);
- ip->Reserved0 = le32_to_cpu(ip->Reserved0);
-
-//#ifdef CONFIG_MTD_DEBUG_VERBOSE
-// if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
- printk(KERN_INFO " PARTITION[%d] ->\n"
- " virtualUnits = %d\n"
- " firstUnit = %d\n"
- " lastUnit = %d\n"
- " flags = 0x%x\n"
- " spareUnits = %d\n",
- i, ip->virtualUnits, ip->firstUnit,
- ip->lastUnit, ip->flags,
- ip->spareUnits);
-//#endif
-
-/*
- if ((i == 0) && (ip->firstUnit > 0)) {
- parts[0].name = " DiskOnChip IPL / Media Header partition";
- parts[0].offset = 0;
- parts[0].size = mtd->erasesize * ip->firstUnit;
- numparts = 1;
- }
-*/
-
- if (ip->flags & INFTL_BINARY)
- parts[numparts].name = " DiskOnChip BDK partition";
- else
- parts[numparts].name = " DiskOnChip BDTL partition";
- parts[numparts].offset = ip->firstUnit << vshift;
- parts[numparts].size = (1 + ip->lastUnit - ip->firstUnit) << vshift;
- numparts++;
- if (ip->lastUnit > lastvunit) lastvunit = ip->lastUnit;
- if (ip->flags & INFTL_LAST) break;
- }
- lastvunit++;
- if ((lastvunit << vshift) < end) {
- parts[numparts].name = " DiskOnChip Remainder partition";
- parts[numparts].offset = lastvunit << vshift;
- parts[numparts].size = end - parts[numparts].offset;
- numparts++;
- }
- return numparts;
-}
-
-static int __init nftl_scan_bbt(struct mtd_info *mtd)
-{
- int ret, numparts;
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- struct mtd_partition parts[2];
-
- memset((char *) parts, 0, sizeof(parts));
- /* On NFTL, we have to find the media headers before we can read the
- BBTs, since they're stored in the media header eraseblocks. */
- numparts = nftl_partscan(mtd, parts);
- if (!numparts) return -EIO;
- this->bbt_td->options = NAND_BBT_ABSPAGE | NAND_BBT_8BIT |
- NAND_BBT_SAVECONTENT | NAND_BBT_WRITE |
- NAND_BBT_VERSION;
- this->bbt_td->veroffs = 7;
- this->bbt_td->pages[0] = doc->mh0_page + 1;
- if (doc->mh1_page != -1) {
- this->bbt_md->options = NAND_BBT_ABSPAGE | NAND_BBT_8BIT |
- NAND_BBT_SAVECONTENT | NAND_BBT_WRITE |
- NAND_BBT_VERSION;
- this->bbt_md->veroffs = 7;
- this->bbt_md->pages[0] = doc->mh1_page + 1;
- } else {
- this->bbt_md = NULL;
- }
-
- /* It's safe to set bd=NULL below because NAND_BBT_CREATE is not set.
- At least as nand_bbt.c is currently written. */
- if ((ret = nand_scan_bbt(mtd, NULL)))
- return ret;
- add_mtd_device(mtd);
-#if defined(CONFIG_MTD_PARTITIONS) || defined(CONFIG_MTD_PARTITIONS_MODULE)
- if (!no_autopart) add_mtd_partitions(mtd, parts, numparts);
-#endif
- return 0;
-}
-
-static int __init inftl_scan_bbt(struct mtd_info *mtd)
-{
- int ret, numparts;
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
- struct mtd_partition parts[5];
-
- if (this->numchips > doc->chips_per_floor) {
- printk(KERN_ERR "Multi-floor INFTL devices not yet supported.\n");
- return -EIO;
- }
-
- if (mtd->size == (8<<20)) {
-#if 0
-/* This doesn't seem to work for me. I get ECC errors on every page. */
- /* The Millennium 8MiB is actually an NFTL device! */
- mtd->name = "DiskOnChip Millennium 8MiB (NFTL)";
- return nftl_scan_bbt(mtd);
-#endif
- printk(KERN_ERR "DiskOnChip Millennium 8MiB is not supported.\n");
- return -EIO;
- }
-
- this->bbt_td->options = NAND_BBT_LASTBLOCK | NAND_BBT_8BIT |
- NAND_BBT_VERSION;
- if (inftl_bbt_write)
- this->bbt_td->options |= NAND_BBT_WRITE;
- this->bbt_td->offs = 8;
- this->bbt_td->len = 8;
- this->bbt_td->veroffs = 7;
- this->bbt_td->maxblocks = INFTL_BBT_RESERVED_BLOCKS;
- this->bbt_td->reserved_block_code = 0x01;
- this->bbt_td->pattern = "MSYS_BBT";
-
- this->bbt_md->options = NAND_BBT_LASTBLOCK | NAND_BBT_8BIT |
- NAND_BBT_VERSION;
- if (inftl_bbt_write)
- this->bbt_md->options |= NAND_BBT_WRITE;
- this->bbt_md->offs = 8;
- this->bbt_md->len = 8;
- this->bbt_md->veroffs = 7;
- this->bbt_md->maxblocks = INFTL_BBT_RESERVED_BLOCKS;
- this->bbt_md->reserved_block_code = 0x01;
- this->bbt_md->pattern = "TBB_SYSM";
-
- /* It's safe to set bd=NULL below because NAND_BBT_CREATE is not set.
- At least as nand_bbt.c is currently written. */
- if ((ret = nand_scan_bbt(mtd, NULL)))
- return ret;
- memset((char *) parts, 0, sizeof(parts));
- numparts = inftl_partscan(mtd, parts);
- /* At least for now, require the INFTL Media Header. We could probably
- do without it for non-INFTL use, since all it gives us is
- autopartitioning, but I want to give it more thought. */
- if (!numparts) return -EIO;
- add_mtd_device(mtd);
-#if defined(CONFIG_MTD_PARTITIONS) || defined(CONFIG_MTD_PARTITIONS_MODULE)
- if (!no_autopart) add_mtd_partitions(mtd, parts, numparts);
-#endif
- return 0;
-}
-
-static inline int __init doc2000_init(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
-
- this->write_byte = doc2000_write_byte;
- this->read_byte = doc2000_read_byte;
- this->write_buf = doc2000_writebuf;
- this->read_buf = doc2000_readbuf;
- this->verify_buf = doc2000_verifybuf;
- this->scan_bbt = nftl_scan_bbt;
-
- doc->CDSNControl = CDSN_CTRL_FLASH_IO | CDSN_CTRL_ECC_IO;
- doc2000_count_chips(mtd);
- mtd->name = "DiskOnChip 2000 (NFTL Model)";
- return (4 * doc->chips_per_floor);
-}
-
-static inline int __init doc2001_init(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- struct doc_priv *doc = (void *)this->priv;
-
- this->write_byte = doc2001_write_byte;
- this->read_byte = doc2001_read_byte;
- this->write_buf = doc2001_writebuf;
- this->read_buf = doc2001_readbuf;
- this->verify_buf = doc2001_verifybuf;
- this->scan_bbt = inftl_scan_bbt;
-
- ReadDOC(doc->virtadr, ChipID);
- ReadDOC(doc->virtadr, ChipID);
- ReadDOC(doc->virtadr, ChipID);
- if (ReadDOC(doc->virtadr, ChipID) != DOC_ChipID_DocMil) {
- /* It's not a Millennium; it's one of the newer
- DiskOnChip 2000 units with a similar ASIC.
- Treat it like a Millennium, except that it
- can have multiple chips. */
- doc2000_count_chips(mtd);
- mtd->name = "DiskOnChip 2000 (INFTL Model)";
- return (4 * doc->chips_per_floor);
- } else {
- /* Bog-standard Millennium */
- doc->chips_per_floor = 1;
- mtd->name = "DiskOnChip Millennium";
- return 1;
- }
-}
-
-static inline int __init doc_probe(unsigned long physadr)
-{
- unsigned char ChipID;
- struct mtd_info *mtd;
- struct nand_chip *nand;
- struct doc_priv *doc;
- unsigned long virtadr;
- unsigned char save_control;
- unsigned char tmp, tmpb, tmpc;
- int reg, len, numchips;
- int ret = 0;
-
- virtadr = (unsigned long)ioremap(physadr, DOC_IOREMAP_LEN);
- if (!virtadr) {
- printk(KERN_ERR "Diskonchip ioremap failed: 0x%x bytes at 0x%lx\n", DOC_IOREMAP_LEN, physadr);
- return -EIO;
- }
-
- /* It's not possible to cleanly detect the DiskOnChip - the
- * bootup procedure will put the device into reset mode, and
- * it's not possible to talk to it without actually writing
- * to the DOCControl register. So we store the current contents
- * of the DOCControl register's location, in case we later decide
- * that it's not a DiskOnChip, and want to put it back how we
- * found it.
- */
- save_control = ReadDOC(virtadr, DOCControl);
-
- /* Reset the DiskOnChip ASIC */
- WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
- virtadr, DOCControl);
- WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
- virtadr, DOCControl);
-
- /* Enable the DiskOnChip ASIC */
- WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
- virtadr, DOCControl);
- WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
- virtadr, DOCControl);
-
- ChipID = ReadDOC(virtadr, ChipID);
-
- switch(ChipID) {
- case DOC_ChipID_Doc2k:
- reg = DoC_2k_ECCStatus;
- break;
- case DOC_ChipID_DocMil:
- reg = DoC_ECCConf;
- break;
- default:
- ret = -ENODEV;
- goto notfound;
- }
- /* Check the TOGGLE bit in the ECC register */
- tmp = ReadDOC_(virtadr, reg) & DOC_TOGGLE_BIT;
- tmpb = ReadDOC_(virtadr, reg) & DOC_TOGGLE_BIT;
- tmpc = ReadDOC_(virtadr, reg) & DOC_TOGGLE_BIT;
- if ((tmp == tmpb) || (tmp != tmpc)) {
- printk(KERN_WARNING "Possible DiskOnChip at 0x%lx failed TOGGLE test, dropping.\n", physadr);
- ret = -ENODEV;
- goto notfound;
- }
-
- for (mtd = doclist; mtd; mtd = doc->nextdoc) {
- nand = mtd->priv;
- doc = (void *)nand->priv;
- /* Use the alias resolution register to determine if this is
- in fact the same DOC aliased to a new address. If writes
- to one chip's alias resolution register change the value on
- the other chip, they're the same chip. */
- unsigned char oldval = ReadDOC(doc->virtadr, AliasResolution);
- unsigned char newval = ReadDOC(virtadr, AliasResolution);
- if (oldval != newval)
- continue;
- WriteDOC(~newval, virtadr, AliasResolution);
- oldval = ReadDOC(doc->virtadr, AliasResolution);
- WriteDOC(newval, virtadr, AliasResolution); // restore it
- newval = ~newval;
- if (oldval == newval) {
- //printk(KERN_DEBUG "Found alias of DOC at 0x%lx to 0x%lx\n", doc->physadr, physadr);
- goto notfound;
- }
- }
-
- printk(KERN_NOTICE "DiskOnChip found at 0x%lx\n", physadr);
-
- len = sizeof(struct mtd_info) +
- sizeof(struct nand_chip) +
- sizeof(struct doc_priv) +
- (2 * sizeof(struct nand_bbt_descr));
- mtd = kmalloc(len, GFP_KERNEL);
- if (!mtd) {
- printk(KERN_ERR "DiskOnChip kmalloc (%d bytes) failed!\n", len);
- ret = -ENOMEM;
- goto fail;
- }
- memset(mtd, 0, len);
-
- nand = (struct nand_chip *) (mtd + 1);
- doc = (struct doc_priv *) (nand + 1);
- nand->bbt_td = (struct nand_bbt_descr *) (doc + 1);
- nand->bbt_md = nand->bbt_td + 1;
-
- mtd->priv = (void *) nand;
- mtd->owner = THIS_MODULE;
-
- nand->priv = (void *) doc;
- nand->select_chip = doc200x_select_chip;
- nand->hwcontrol = doc200x_hwcontrol;
- nand->dev_ready = doc200x_dev_ready;
- nand->waitfunc = doc200x_wait;
- nand->block_bad = doc200x_block_bad;
- nand->enable_hwecc = doc200x_enable_hwecc;
- nand->calculate_ecc = doc200x_calculate_ecc;
- nand->correct_data = doc200x_correct_data;
- //nand->data_buf
- nand->autooob = &doc200x_oobinfo;
- nand->eccmode = NAND_ECC_HW6_512;
- nand->options = NAND_USE_FLASH_BBT | NAND_HWECC_SYNDROME;
-
- doc->physadr = physadr;
- doc->virtadr = virtadr;
- doc->ChipID = ChipID;
- doc->curfloor = -1;
- doc->curchip = -1;
- doc->mh0_page = -1;
- doc->mh1_page = -1;
- doc->nextdoc = doclist;
-
- if (ChipID == DOC_ChipID_Doc2k)
- numchips = doc2000_init(mtd);
- else
- numchips = doc2001_init(mtd);
-
- if ((ret = nand_scan(mtd, numchips))) {
- /* DBB note: i believe nand_release is necessary here, as
- buffers may have been allocated in nand_base. Check with
- Thomas. FIX ME! */
- /* nand_release will call del_mtd_device, but we haven't yet
- added it. This is handled without incident by
- del_mtd_device, as far as I can tell. */
- nand_release(mtd);
- kfree(mtd);
- goto fail;
- }
-
- /* Success! */
- doclist = mtd;
- return 0;
-
-notfound:
- /* Put back the contents of the DOCControl register, in case it's not
- actually a DiskOnChip. */
- WriteDOC(save_control, virtadr, DOCControl);
-fail:
- iounmap((void *)virtadr);
- return ret;
-}
-
-int __init init_nanddoc(void)
-{
- int i;
-
- if (doc_config_location) {
- printk(KERN_INFO "Using configured DiskOnChip probe address 0x%lx\n", doc_config_location);
- return doc_probe(doc_config_location);
- } else {
- for (i=0; (doc_locations[i] != 0xffffffff); i++) {
- doc_probe(doc_locations[i]);
- }
- }
- /* No banner message any more. Print a message if no DiskOnChip
- found, so the user knows we at least tried. */
- if (!doclist) {
- printk(KERN_INFO "No valid DiskOnChip devices found\n");
- return -ENODEV;
- }
- return 0;
-}
-
-void __exit cleanup_nanddoc(void)
-{
- struct mtd_info *mtd, *nextmtd;
- struct nand_chip *nand;
- struct doc_priv *doc;
-
- for (mtd = doclist; mtd; mtd = nextmtd) {
- nand = mtd->priv;
- doc = (void *)nand->priv;
-
- nextmtd = doc->nextdoc;
- nand_release(mtd);
- iounmap((void *)doc->virtadr);
- kfree(mtd);
- }
-}
-
-module_init(init_nanddoc);
-module_exit(cleanup_nanddoc);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
-MODULE_DESCRIPTION("M-Systems DiskOnChip 2000 and Millennium device driver\n");
+++ /dev/null
-/*
- * drivers/mtd/nand.c
- *
- * Overview:
- * This is the generic MTD driver for NAND flash devices. It should be
- * capable of working with almost all NAND chips currently available.
- * Basic support for AG-AND chips is provided.
- *
- * Additional technical information is available on
- * http://www.linux-mtd.infradead.org/tech/nand.html
- *
- * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
- * 2002 Thomas Gleixner (tglx@linutronix.de)
- *
- * 02-08-2004 tglx: support for strange chips, which cannot auto increment
- * pages on read / read_oob
- *
- * 03-17-2004 tglx: Check ready before auto increment check. Simon Bayes
- * pointed this out, as he marked an auto increment capable chip
- * as NOAUTOINCR in the board driver.
- * Make reads over block boundaries work too
- *
- * 04-14-2004 tglx: first working version for 2k page size chips
- *
- * 05-19-2004 tglx: Basic support for Renesas AG-AND chips
- *
- * Credits:
- * David Woodhouse for adding multichip support
- *
- * Aleph One Ltd. and Toby Churchill Ltd. for supporting the
- * rework for 2K page size chips
- *
- * TODO:
- * Enable cached programming for 2k page size chips
- * Check, if mtd->ecctype should be set to MTD_ECC_HW
- * if we have HW ecc support.
- * The AG-AND chips have nice features for speed improvement,
- * which are not supported yet. Read / program 4 pages in one go.
- *
- * $Id: nand_base.c,v 1.113 2004/07/14 16:31:31 gleixner Exp $
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/nand_ecc.h>
-#include <linux/mtd/compatmac.h>
-#include <linux/interrupt.h>
-#include <linux/bitops.h>
-#include <asm/io.h>
-
-#if defined(CONFIG_MTD_PARTITIONS) || defined(CONFIG_MTD_PARTITIONS_MODULE)
-#include <linux/mtd/partitions.h>
-#endif
-
-/* Define default oob placement schemes for large and small page devices */
-static struct nand_oobinfo nand_oob_8 = {
- .useecc = MTD_NANDECC_AUTOPLACE,
- .eccbytes = 3,
- .eccpos = {0, 1, 2},
- .oobfree = { {3, 2}, {6, 2} }
-};
-
-static struct nand_oobinfo nand_oob_16 = {
- .useecc = MTD_NANDECC_AUTOPLACE,
- .eccbytes = 6,
- .eccpos = {0, 1, 2, 3, 6, 7},
- .oobfree = { {8, 8} }
-};
-
-static struct nand_oobinfo nand_oob_64 = {
- .useecc = MTD_NANDECC_AUTOPLACE,
- .eccbytes = 24,
- .eccpos = {
- 40, 41, 42, 43, 44, 45, 46, 47,
- 48, 49, 50, 51, 52, 53, 54, 55,
- 56, 57, 58, 59, 60, 61, 62, 63},
- .oobfree = { {2, 38} }
-};
-
-/* This is used for padding purposes in nand_write_oob */
-static u_char ffchars[] = {
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-};
-
-/*
- * NAND low-level MTD interface functions
- */
-static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
-static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len);
-static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len);
-
-static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
-static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
- size_t * retlen, u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
-static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf);
-static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
- size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char *buf);
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs,
- unsigned long count, loff_t to, size_t * retlen);
-static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs,
- unsigned long count, loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr);
-static void nand_sync (struct mtd_info *mtd);
-
-/* Some internal functions */
-static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf,
- struct nand_oobinfo *oobsel, int mode);
-#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
-static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
- u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode);
-#else
-#define nand_verify_pages(...) (0)
-#endif
-
-static void nand_get_chip (struct nand_chip *this, struct mtd_info *mtd, int new_state);
-
-/**
- * nand_release_chip - [GENERIC] release chip
- * @mtd: MTD device structure
- *
- * Deselect, release chip lock and wake up anyone waiting on the device
- */
-static void nand_release_chip (struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
-
- /* De-select the NAND device */
- this->select_chip(mtd, -1);
- /* Release the chip */
- spin_lock_bh (&this->chip_lock);
- this->state = FL_READY;
- wake_up (&this->wq);
- spin_unlock_bh (&this->chip_lock);
-}
-
-/**
- * nand_read_byte - [DEFAULT] read one byte from the chip
- * @mtd: MTD device structure
- *
- * Default read function for 8bit buswith
- */
-static u_char nand_read_byte(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- return readb(this->IO_ADDR_R);
-}
-
-/**
- * nand_write_byte - [DEFAULT] write one byte to the chip
- * @mtd: MTD device structure
- * @byte: pointer to data byte to write
- *
- * Default write function for 8it buswith
- */
-static void nand_write_byte(struct mtd_info *mtd, u_char byte)
-{
- struct nand_chip *this = mtd->priv;
- writeb(byte, this->IO_ADDR_W);
-}
-
-/**
- * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip
- * @mtd: MTD device structure
- *
- * Default read function for 16bit buswith with
- * endianess conversion
- */
-static u_char nand_read_byte16(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- return (u_char) cpu_to_le16(readw(this->IO_ADDR_R));
-}
-
-/**
- * nand_write_byte16 - [DEFAULT] write one byte endianess aware to the chip
- * @mtd: MTD device structure
- * @byte: pointer to data byte to write
- *
- * Default write function for 16bit buswith with
- * endianess conversion
- */
-static void nand_write_byte16(struct mtd_info *mtd, u_char byte)
-{
- struct nand_chip *this = mtd->priv;
- writew(le16_to_cpu((u16) byte), this->IO_ADDR_W);
-}
-
-/**
- * nand_read_word - [DEFAULT] read one word from the chip
- * @mtd: MTD device structure
- *
- * Default read function for 16bit buswith without
- * endianess conversion
- */
-static u16 nand_read_word(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- return readw(this->IO_ADDR_R);
-}
-
-/**
- * nand_write_word - [DEFAULT] write one word to the chip
- * @mtd: MTD device structure
- * @word: data word to write
- *
- * Default write function for 16bit buswith without
- * endianess conversion
- */
-static void nand_write_word(struct mtd_info *mtd, u16 word)
-{
- struct nand_chip *this = mtd->priv;
- writew(word, this->IO_ADDR_W);
-}
-
-/**
- * nand_select_chip - [DEFAULT] control CE line
- * @mtd: MTD device structure
- * @chip: chipnumber to select, -1 for deselect
- *
- * Default select function for 1 chip devices.
- */
-static void nand_select_chip(struct mtd_info *mtd, int chip)
-{
- struct nand_chip *this = mtd->priv;
- switch(chip) {
- case -1:
- this->hwcontrol(mtd, NAND_CTL_CLRNCE);
- break;
- case 0:
- this->hwcontrol(mtd, NAND_CTL_SETNCE);
- break;
-
- default:
- BUG();
- }
-}
-
-/**
- * nand_write_buf - [DEFAULT] write buffer to chip
- * @mtd: MTD device structure
- * @buf: data buffer
- * @len: number of bytes to write
- *
- * Default write function for 8bit buswith
- */
-static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- writeb(buf[i], this->IO_ADDR_W);
-}
-
-/**
- * nand_read_buf - [DEFAULT] read chip data into buffer
- * @mtd: MTD device structure
- * @buf: buffer to store date
- * @len: number of bytes to read
- *
- * Default read function for 8bit buswith
- */
-static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- buf[i] = readb(this->IO_ADDR_R);
-}
-
-/**
- * nand_verify_buf - [DEFAULT] Verify chip data against buffer
- * @mtd: MTD device structure
- * @buf: buffer containing the data to compare
- * @len: number of bytes to compare
- *
- * Default verify function for 8bit buswith
- */
-static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- if (buf[i] != readb(this->IO_ADDR_R))
- return -EFAULT;
-
- return 0;
-}
-
-/**
- * nand_write_buf16 - [DEFAULT] write buffer to chip
- * @mtd: MTD device structure
- * @buf: data buffer
- * @len: number of bytes to write
- *
- * Default write function for 16bit buswith
- */
-static void nand_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
- u16 *p = (u16 *) buf;
- len >>= 1;
-
- for (i=0; i<len; i++)
- writew(p[i], this->IO_ADDR_W);
-
-}
-
-/**
- * nand_read_buf16 - [DEFAULT] read chip data into buffer
- * @mtd: MTD device structure
- * @buf: buffer to store date
- * @len: number of bytes to read
- *
- * Default read function for 16bit buswith
- */
-static void nand_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
- u16 *p = (u16 *) buf;
- len >>= 1;
-
- for (i=0; i<len; i++)
- p[i] = readw(this->IO_ADDR_R);
-}
-
-/**
- * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer
- * @mtd: MTD device structure
- * @buf: buffer containing the data to compare
- * @len: number of bytes to compare
- *
- * Default verify function for 16bit buswith
- */
-static int nand_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
- u16 *p = (u16 *) buf;
- len >>= 1;
-
- for (i=0; i<len; i++)
- if (p[i] != readw(this->IO_ADDR_R))
- return -EFAULT;
-
- return 0;
-}
-
-/**
- * nand_block_bad - [DEFAULT] Read bad block marker from the chip
- * @mtd: MTD device structure
- * @ofs: offset from device start
- * @getchip: 0, if the chip is already selected
- *
- * Check, if the block is bad.
- */
-static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
-{
- int page, chipnr, res = 0;
- struct nand_chip *this = mtd->priv;
- u16 bad;
-
- if (getchip) {
- page = (int)(ofs >> this->page_shift);
- chipnr = (int)(ofs >> this->chip_shift);
-
- /* Grab the lock and see if the device is available */
- nand_get_chip (this, mtd, FL_READING);
-
- /* Select the NAND device */
- this->select_chip(mtd, chipnr);
- } else
- page = (int) ofs;
-
- if (this->options & NAND_BUSWIDTH_16) {
- this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos & 0xFE, page & this->pagemask);
- bad = cpu_to_le16(this->read_word(mtd));
- if (this->badblockpos & 0x1)
- bad >>= 1;
- if ((bad & 0xFF) != 0xff)
- res = 1;
- } else {
- this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos, page & this->pagemask);
- if (this->read_byte(mtd) != 0xff)
- res = 1;
- }
-
- if (getchip) {
- /* Deselect and wake up anyone waiting on the device */
- nand_release_chip(mtd);
- }
-
- return res;
-}
-
-/**
- * nand_default_block_markbad - [DEFAULT] mark a block bad
- * @mtd: MTD device structure
- * @ofs: offset from device start
- *
- * This is the default implementation, which can be overridden by
- * a hardware specific driver.
-*/
-static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
-{
- struct nand_chip *this = mtd->priv;
- u_char buf[2] = {0, 0};
- size_t retlen;
- int block;
-
- /* Get block number */
- block = ((int) ofs) >> this->bbt_erase_shift;
- this->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
-
- /* Do we have a flash based bad block table ? */
- if (this->options & NAND_USE_FLASH_BBT)
- return nand_update_bbt (mtd, ofs);
-
- /* We write two bytes, so we dont have to mess with 16 bit access */
- ofs += mtd->oobsize + (this->badblockpos & ~0x01);
- return nand_write_oob (mtd, ofs , 2, &retlen, buf);
-}
-
-/**
- * nand_check_wp - [GENERIC] check if the chip is write protected
- * @mtd: MTD device structure
- * Check, if the device is write protected
- *
- * The function expects, that the device is already selected
- */
-static int nand_check_wp (struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- /* Check the WP bit */
- this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
- return (this->read_byte(mtd) & 0x80) ? 0 : 1;
-}
-
-/**
- * nand_block_checkbad - [GENERIC] Check if a block is marked bad
- * @mtd: MTD device structure
- * @ofs: offset from device start
- * @getchip: 0, if the chip is already selected
- * @allowbbt: 1, if its allowed to access the bbt area
- *
- * Check, if the block is bad. Either by reading the bad block table or
- * calling of the scan function.
- */
-static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt)
-{
- struct nand_chip *this = mtd->priv;
-
- if (!this->bbt)
- return this->block_bad(mtd, ofs, getchip);
-
- /* Return info from the table */
- return nand_isbad_bbt (mtd, ofs, allowbbt);
-}
-
-/**
- * nand_command - [DEFAULT] Send command to NAND device
- * @mtd: MTD device structure
- * @command: the command to be sent
- * @column: the column address for this command, -1 if none
- * @page_addr: the page address for this command, -1 if none
- *
- * Send command to NAND device. This function is used for small page
- * devices (256/512 Bytes per page)
- */
-static void nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
-{
- register struct nand_chip *this = mtd->priv;
-
- /* Begin command latch cycle */
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- /*
- * Write out the command to the device.
- */
- if (command == NAND_CMD_SEQIN) {
- int readcmd;
-
- if (column >= mtd->oobblock) {
- /* OOB area */
- column -= mtd->oobblock;
- readcmd = NAND_CMD_READOOB;
- } else if (column < 256) {
- /* First 256 bytes --> READ0 */
- readcmd = NAND_CMD_READ0;
- } else {
- column -= 256;
- readcmd = NAND_CMD_READ1;
- }
- this->write_byte(mtd, readcmd);
- }
- this->write_byte(mtd, command);
-
- /* Set ALE and clear CLE to start address cycle */
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-
- if (column != -1 || page_addr != -1) {
- this->hwcontrol(mtd, NAND_CTL_SETALE);
-
- /* Serially input address */
- if (column != -1) {
- /* Adjust columns for 16 bit buswidth */
- if (this->options & NAND_BUSWIDTH_16)
- column >>= 1;
- this->write_byte(mtd, column);
- }
- if (page_addr != -1) {
- this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
- this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
- /* One more address cycle for higher density devices */
- if (this->chipsize & 0x0c000000)
- this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
- }
- /* Latch in address */
- this->hwcontrol(mtd, NAND_CTL_CLRALE);
- }
-
- /*
- * program and erase have their own busy handlers
- * status and sequential in needs no delay
- */
- switch (command) {
-
- case NAND_CMD_PAGEPROG:
- case NAND_CMD_ERASE1:
- case NAND_CMD_ERASE2:
- case NAND_CMD_SEQIN:
- case NAND_CMD_STATUS:
- return;
-
- case NAND_CMD_RESET:
- if (this->dev_ready)
- break;
- udelay(this->chip_delay);
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- this->write_byte(mtd, NAND_CMD_STATUS);
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
- while ( !(this->read_byte(mtd) & 0x40));
- return;
-
- /* This applies to read commands */
- default:
- /*
- * If we don't have access to the busy pin, we apply the given
- * command delay
- */
- if (!this->dev_ready) {
- udelay (this->chip_delay);
- return;
- }
- }
-
- /* Apply this short delay always to ensure that we do wait tWB in
- * any case on any machine. */
- ndelay (100);
- /* wait until command is processed */
- while (!this->dev_ready(mtd));
-}
-
-/**
- * nand_command_lp - [DEFAULT] Send command to NAND large page device
- * @mtd: MTD device structure
- * @command: the command to be sent
- * @column: the column address for this command, -1 if none
- * @page_addr: the page address for this command, -1 if none
- *
- * Send command to NAND device. This is the version for the new large page devices
- * We dont have the seperate regions as we have in the small page devices.
- * We must emulate NAND_CMD_READOOB to keep the code compatible.
- *
- */
-static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, int page_addr)
-{
- register struct nand_chip *this = mtd->priv;
-
- /* Emulate NAND_CMD_READOOB */
- if (command == NAND_CMD_READOOB) {
- column += mtd->oobblock;
- command = NAND_CMD_READ0;
- }
-
-
- /* Begin command latch cycle */
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- /* Write out the command to the device. */
- this->write_byte(mtd, command);
- /* End command latch cycle */
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-
- if (column != -1 || page_addr != -1) {
- this->hwcontrol(mtd, NAND_CTL_SETALE);
-
- /* Serially input address */
- if (column != -1) {
- /* Adjust columns for 16 bit buswidth */
- if (this->options & NAND_BUSWIDTH_16)
- column >>= 1;
- this->write_byte(mtd, column & 0xff);
- this->write_byte(mtd, column >> 8);
- }
- if (page_addr != -1) {
- this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
- this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
- /* One more address cycle for devices > 128MiB */
- if (this->chipsize > (128 << 20))
- this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0xff));
- }
- /* Latch in address */
- this->hwcontrol(mtd, NAND_CTL_CLRALE);
- }
-
- /*
- * program and erase have their own busy handlers
- * status and sequential in needs no delay
- */
- switch (command) {
-
- case NAND_CMD_CACHEDPROG:
- case NAND_CMD_PAGEPROG:
- case NAND_CMD_ERASE1:
- case NAND_CMD_ERASE2:
- case NAND_CMD_SEQIN:
- case NAND_CMD_STATUS:
- return;
-
-
- case NAND_CMD_RESET:
- if (this->dev_ready)
- break;
- udelay(this->chip_delay);
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- this->write_byte(mtd, NAND_CMD_STATUS);
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
- while ( !(this->read_byte(mtd) & 0x40));
- return;
-
- case NAND_CMD_READ0:
- /* Begin command latch cycle */
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- /* Write out the start read command */
- this->write_byte(mtd, NAND_CMD_READSTART);
- /* End command latch cycle */
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
- /* Fall through into ready check */
-
- /* This applies to read commands */
- default:
- /*
- * If we don't have access to the busy pin, we apply the given
- * command delay
- */
- if (!this->dev_ready) {
- udelay (this->chip_delay);
- return;
- }
- }
-
- /* Apply this short delay always to ensure that we do wait tWB in
- * any case on any machine. */
- ndelay (100);
- /* wait until command is processed */
- while (!this->dev_ready(mtd));
-}
-
-/**
- * nand_get_chip - [GENERIC] Get chip for selected access
- * @this: the nand chip descriptor
- * @mtd: MTD device structure
- * @new_state: the state which is requested
- *
- * Get the device and lock it for exclusive access
- */
-static void nand_get_chip (struct nand_chip *this, struct mtd_info *mtd, int new_state)
-{
-
- DECLARE_WAITQUEUE (wait, current);
-
- /*
- * Grab the lock and see if the device is available
- */
-retry:
- spin_lock_bh (&this->chip_lock);
-
- if (this->state == FL_READY) {
- this->state = new_state;
- spin_unlock_bh (&this->chip_lock);
- return;
- }
-
- set_current_state (TASK_UNINTERRUPTIBLE);
- add_wait_queue (&this->wq, &wait);
- spin_unlock_bh (&this->chip_lock);
- schedule ();
- remove_wait_queue (&this->wq, &wait);
- goto retry;
-}
-
-/**
- * nand_wait - [DEFAULT] wait until the command is done
- * @mtd: MTD device structure
- * @this: NAND chip structure
- * @state: state to select the max. timeout value
- *
- * Wait for command done. This applies to erase and program only
- * Erase can take up to 400ms and program up to 20ms according to
- * general NAND and SmartMedia specs
- *
-*/
-static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
-{
-
- unsigned long timeo = jiffies;
- int status;
-
- if (state == FL_ERASING)
- timeo += (HZ * 400) / 1000;
- else
- timeo += (HZ * 20) / 1000;
-
- /* Apply this short delay always to ensure that we do wait tWB in
- * any case on any machine. */
- ndelay (100);
-
- spin_lock_bh (&this->chip_lock);
- if ((state == FL_ERASING) && (this->options & NAND_IS_AND))
- this->cmdfunc (mtd, NAND_CMD_STATUS_MULTI, -1, -1);
- else
- this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
-
- while (time_before(jiffies, timeo)) {
- /* Check, if we were interrupted */
- if (this->state != state) {
- spin_unlock_bh (&this->chip_lock);
- return 0;
- }
- if (this->dev_ready) {
- if (this->dev_ready(mtd))
- break;
- }
- if (this->read_byte(mtd) & NAND_STATUS_READY)
- break;
-
- spin_unlock_bh (&this->chip_lock);
- yield ();
- spin_lock_bh (&this->chip_lock);
- }
- status = (int) this->read_byte(mtd);
- spin_unlock_bh (&this->chip_lock);
-
- return status;
-}
-
-/**
- * nand_write_page - [GENERIC] write one page
- * @mtd: MTD device structure
- * @this: NAND chip structure
- * @page: startpage inside the chip, must be called with (page & this->pagemask)
- * @oob_buf: out of band data buffer
- * @oobsel: out of band selecttion structre
- * @cached: 1 = enable cached programming if supported by chip
- *
- * Nand_page_program function is used for write and writev !
- * This function will always program a full page of data
- * If you call it with a non page aligned buffer, you're lost :)
- *
- * Cached programming is not supported yet.
- */
-static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page,
- u_char *oob_buf, struct nand_oobinfo *oobsel, int cached)
-{
- int i, status;
- u_char ecc_code[8];
- int eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
- int *oob_config = oobsel->eccpos;
- int datidx = 0, eccidx = 0, eccsteps = this->eccsteps;
- int eccbytes = 0;
-
- /* FIXME: Enable cached programming */
- cached = 0;
-
- /* Send command to begin auto page programming */
- this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page);
-
- /* Write out complete page of data, take care of eccmode */
- switch (eccmode) {
- /* No ecc, write all */
- case NAND_ECC_NONE:
- printk (KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n");
- this->write_buf(mtd, this->data_poi, mtd->oobblock);
- break;
-
- /* Software ecc 3/256, write all */
- case NAND_ECC_SOFT:
- for (; eccsteps; eccsteps--) {
- this->calculate_ecc(mtd, &this->data_poi[datidx], ecc_code);
- for (i = 0; i < 3; i++, eccidx++)
- oob_buf[oob_config[eccidx]] = ecc_code[i];
- datidx += this->eccsize;
- }
- this->write_buf(mtd, this->data_poi, mtd->oobblock);
- break;
-
- /* Hardware ecc 8 byte / 512 byte data */
- case NAND_ECC_HW8_512:
- eccbytes += 2;
- /* Hardware ecc 6 byte / 512 byte data */
- case NAND_ECC_HW6_512:
- eccbytes += 3;
- /* Hardware ecc 3 byte / 256 data */
- /* Hardware ecc 3 byte / 512 byte data */
- case NAND_ECC_HW3_256:
- case NAND_ECC_HW3_512:
- eccbytes += 3;
- for (; eccsteps; eccsteps--) {
- /* enable hardware ecc logic for write */
- this->enable_hwecc(mtd, NAND_ECC_WRITE);
- this->write_buf(mtd, &this->data_poi[datidx], this->eccsize);
- this->calculate_ecc(mtd, &this->data_poi[datidx], ecc_code);
- for (i = 0; i < eccbytes; i++, eccidx++)
- oob_buf[oob_config[eccidx]] = ecc_code[i];
- /* If the hardware ecc provides syndromes then
- * the ecc code must be written immidiately after
- * the data bytes (words) */
- if (this->options & NAND_HWECC_SYNDROME)
- this->write_buf(mtd, ecc_code, eccbytes);
-
- datidx += this->eccsize;
- }
- break;
-
- default:
- printk (KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode);
- BUG();
- }
-
- /* Write out OOB data */
- if (this->options & NAND_HWECC_SYNDROME)
- this->write_buf(mtd, &oob_buf[oobsel->eccbytes], mtd->oobsize - oobsel->eccbytes);
- else
- this->write_buf(mtd, oob_buf, mtd->oobsize);
-
- /* Send command to actually program the data */
- this->cmdfunc (mtd, cached ? NAND_CMD_CACHEDPROG : NAND_CMD_PAGEPROG, -1, -1);
-
- if (!cached) {
- /* call wait ready function */
- status = this->waitfunc (mtd, this, FL_WRITING);
- /* See if device thinks it succeeded */
- if (status & 0x01) {
- DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write, page 0x%08x, ", __FUNCTION__, page);
- return -EIO;
- }
- } else {
- /* FIXME: Implement cached programming ! */
- /* wait until cache is ready*/
- // status = this->waitfunc (mtd, this, FL_CACHEDRPG);
- }
- return 0;
-}
-
-#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
-/**
- * nand_verify_pages - [GENERIC] verify the chip contents after a write
- * @mtd: MTD device structure
- * @this: NAND chip structure
- * @page: startpage inside the chip, must be called with (page & this->pagemask)
- * @numpages: number of pages to verify
- * @oob_buf: out of band data buffer
- * @oobsel: out of band selecttion structre
- * @chipnr: number of the current chip
- * @oobmode: 1 = full buffer verify, 0 = ecc only
- *
- * The NAND device assumes that it is always writing to a cleanly erased page.
- * Hence, it performs its internal write verification only on bits that
- * transitioned from 1 to 0. The device does NOT verify the whole page on a
- * byte by byte basis. It is possible that the page was not completely erased
- * or the page is becoming unusable due to wear. The read with ECC would catch
- * the error later when the ECC page check fails, but we would rather catch
- * it early in the page write stage. Better to write no data than invalid data.
- */
-static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
- u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode)
-{
- int i, j, datidx = 0, oobofs = 0, res = -EIO;
- int eccsteps = this->eccsteps;
- int hweccbytes;
- u_char oobdata[64];
-
- hweccbytes = (this->options & NAND_HWECC_SYNDROME) ? (oobsel->eccbytes / eccsteps) : 0;
-
- /* Send command to read back the first page */
- this->cmdfunc (mtd, NAND_CMD_READ0, 0, page);
-
- for(;;) {
- for (j = 0; j < eccsteps; j++) {
- /* Loop through and verify the data */
- if (this->verify_buf(mtd, &this->data_poi[datidx], mtd->eccsize)) {
- DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
- goto out;
- }
- datidx += mtd->eccsize;
- /* Have we a hw generator layout ? */
- if (!hweccbytes)
- continue;
- if (this->verify_buf(mtd, &this->oob_buf[oobofs], hweccbytes)) {
- DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
- goto out;
- }
- oobofs += hweccbytes;
- }
-
- /* check, if we must compare all data or if we just have to
- * compare the ecc bytes
- */
- if (oobmode) {
- if (this->verify_buf(mtd, &oob_buf[oobofs], mtd->oobsize - hweccbytes * eccsteps)) {
- DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
- goto out;
- }
- } else {
- /* Read always, else autoincrement fails */
- this->read_buf(mtd, oobdata, mtd->oobsize - hweccbytes * eccsteps);
-
- if (oobsel->useecc != MTD_NANDECC_OFF && !hweccbytes) {
- int ecccnt = oobsel->eccbytes;
-
- for (i = 0; i < ecccnt; i++) {
- int idx = oobsel->eccpos[i];
- if (oobdata[idx] != oob_buf[oobofs + idx] ) {
- DEBUG (MTD_DEBUG_LEVEL0,
- "%s: Failed ECC write "
- "verify, page 0x%08x, " "%6i bytes were succesful\n", __FUNCTION__, page, i);
- goto out;
- }
- }
- }
- }
- oobofs += mtd->oobsize - hweccbytes * eccsteps;
- page++;
- numpages--;
-
- /* Apply delay or wait for ready/busy pin
- * Do this before the AUTOINCR check, so no problems
- * arise if a chip which does auto increment
- * is marked as NOAUTOINCR by the board driver.
- * Do this also before returning, so the chip is
- * ready for the next command.
- */
- if (!this->dev_ready)
- udelay (this->chip_delay);
- else
- while (!this->dev_ready(mtd));
-
- /* All done, return happy */
- if (!numpages)
- return 0;
-
-
- /* Check, if the chip supports auto page increment */
- if (!NAND_CANAUTOINCR(this))
- this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
- }
- /*
- * Terminate the read command. We come here in case of an error
- * So we must issue a reset command.
- */
-out:
- this->cmdfunc (mtd, NAND_CMD_RESET, -1, -1);
- return res;
-}
-#endif
-
-/**
- * nand_read - [MTD Interface] MTD compability function for nand_read_ecc
- * @mtd: MTD device structure
- * @from: offset to read from
- * @len: number of bytes to read
- * @retlen: pointer to variable to store the number of read bytes
- * @buf: the databuffer to put data
- *
- * This function simply calls nand_read_ecc with oob buffer and oobsel = NULL
-*/
-static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
-{
- return nand_read_ecc (mtd, from, len, retlen, buf, NULL, NULL);
-}
-
-
-/**
- * nand_read_ecc - [MTD Interface] Read data with ECC
- * @mtd: MTD device structure
- * @from: offset to read from
- * @len: number of bytes to read
- * @retlen: pointer to variable to store the number of read bytes
- * @buf: the databuffer to put data
- * @oob_buf: filesystem supplied oob data buffer
- * @oobsel: oob selection structure
- *
- * NAND read with ECC
- */
-static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
- size_t * retlen, u_char * buf, u_char * oob_buf, struct nand_oobinfo *oobsel)
-{
- int i, j, col, realpage, page, end, ecc, chipnr, sndcmd = 1;
- int read = 0, oob = 0, ecc_status = 0, ecc_failed = 0;
- struct nand_chip *this = mtd->priv;
- u_char *data_poi, *oob_data = oob_buf;
- u_char ecc_calc[32];
- u_char ecc_code[32];
- int eccmode, eccsteps;
- int *oob_config, datidx;
- int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
- int eccbytes = 3;
- int compareecc = 1;
- int oobreadlen;
-
-
- DEBUG (MTD_DEBUG_LEVEL3, "nand_read_ecc: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
-
- /* Do not allow reads past end of device */
- if ((from + len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: Attempt read beyond end of device\n");
- *retlen = 0;
- return -EINVAL;
- }
-
- /* Grab the lock and see if the device is available */
- nand_get_chip (this, mtd ,FL_READING);
-
- /* use userspace supplied oobinfo, if zero */
- if (oobsel == NULL)
- oobsel = &mtd->oobinfo;
-
- /* Autoplace of oob data ? Use the default placement scheme */
- if (oobsel->useecc == MTD_NANDECC_AUTOPLACE)
- oobsel = this->autooob;
-
- eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
- oob_config = oobsel->eccpos;
-
- /* Select the NAND device */
- chipnr = (int)(from >> this->chip_shift);
- this->select_chip(mtd, chipnr);
-
- /* First we calculate the starting page */
- realpage = (int) (from >> this->page_shift);
- page = realpage & this->pagemask;
-
- /* Get raw starting column */
- col = from & (mtd->oobblock - 1);
-
- end = mtd->oobblock;
- ecc = this->eccsize;
- switch (eccmode) {
- case NAND_ECC_HW6_512: /* Hardware ECC 6 byte / 512 byte data */
- eccbytes = 6;
- break;
- case NAND_ECC_HW8_512: /* Hardware ECC 8 byte / 512 byte data */
- eccbytes = 8;
- break;
- case NAND_ECC_NONE:
- compareecc = 0;
- break;
- }
-
- if (this->options & NAND_HWECC_SYNDROME)
- compareecc = 0;
-
- oobreadlen = mtd->oobsize;
- if (this->options & NAND_HWECC_SYNDROME)
- oobreadlen -= oobsel->eccbytes;
-
- /* Loop until all data read */
- while (read < len) {
-
- int aligned = (!col && (len - read) >= end);
- /*
- * If the read is not page aligned, we have to read into data buffer
- * due to ecc, else we read into return buffer direct
- */
- if (aligned)
- data_poi = &buf[read];
- else
- data_poi = this->data_buf;
-
- /* Check, if we have this page in the buffer
- *
- * FIXME: Make it work when we must provide oob data too,
- * check the usage of data_buf oob field
- */
- if (realpage == this->pagebuf && !oob_buf) {
- /* aligned read ? */
- if (aligned)
- memcpy (data_poi, this->data_buf, end);
- goto readdata;
- }
-
- /* Check, if we must send the read command */
- if (sndcmd) {
- this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
- sndcmd = 0;
- }
-
- /* get oob area, if we have no oob buffer from fs-driver */
- if (!oob_buf || oobsel->useecc == MTD_NANDECC_AUTOPLACE)
- oob_data = &this->data_buf[end];
-
- eccsteps = this->eccsteps;
-
- switch (eccmode) {
- case NAND_ECC_NONE: { /* No ECC, Read in a page */
- static unsigned long lastwhinge = 0;
- if ((lastwhinge / HZ) != (jiffies / HZ)) {
- printk (KERN_WARNING "Reading data from NAND FLASH without ECC is not recommended\n");
- lastwhinge = jiffies;
- }
- this->read_buf(mtd, data_poi, end);
- break;
- }
-
- case NAND_ECC_SOFT: /* Software ECC 3/256: Read in a page + oob data */
- this->read_buf(mtd, data_poi, end);
- for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=3, datidx += ecc)
- this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
- break;
-
- case NAND_ECC_HW3_256: /* Hardware ECC 3 byte /256 byte data */
- case NAND_ECC_HW3_512: /* Hardware ECC 3 byte /512 byte data */
- case NAND_ECC_HW6_512: /* Hardware ECC 6 byte / 512 byte data */
- case NAND_ECC_HW8_512: /* Hardware ECC 8 byte / 512 byte data */
- for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=eccbytes, datidx += ecc) {
- this->enable_hwecc(mtd, NAND_ECC_READ);
- this->read_buf(mtd, &data_poi[datidx], ecc);
-
- /* HW ecc with syndrome calculation must read the
- * syndrome from flash immidiately after the data */
- if (!compareecc) {
- /* Some hw ecc generators need to know when the
- * syndrome is read from flash */
- this->enable_hwecc(mtd, NAND_ECC_READSYN);
- this->read_buf(mtd, &oob_data[i], eccbytes);
- /* We calc error correction directly, it checks the hw
- * generator for an error, reads back the syndrome and
- * does the error correction on the fly */
- if (this->correct_data(mtd, &data_poi[datidx], &oob_data[i], &ecc_code[i]) == -1) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: "
- "Failed ECC read, page 0x%08x on chip %d\n", page, chipnr);
- ecc_failed++;
- }
- } else {
- this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
- }
- }
- break;
-
- default:
- printk (KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode);
- BUG();
- }
-
- /* read oobdata */
- this->read_buf(mtd, &oob_data[mtd->oobsize - oobreadlen], oobreadlen);
-
- /* Skip ECC check, if not requested (ECC_NONE or HW_ECC with syndromes) */
- if (!compareecc)
- goto readoob;
-
- /* Pick the ECC bytes out of the oob data */
- for (j = 0; j < oobsel->eccbytes; j++)
- ecc_code[j] = oob_data[oob_config[j]];
-
- /* correct data, if neccecary */
- for (i = 0, j = 0, datidx = 0; i < this->eccsteps; i++, datidx += ecc) {
- ecc_status = this->correct_data(mtd, &data_poi[datidx], &ecc_code[j], &ecc_calc[j]);
-
- /* Get next chunk of ecc bytes */
- j += eccbytes;
-
- /* Check, if we have a fs supplied oob-buffer,
- * This is the legacy mode. Used by YAFFS1
- * Should go away some day
- */
- if (oob_buf && oobsel->useecc == MTD_NANDECC_PLACE) {
- int *p = (int *)(&oob_data[mtd->oobsize]);
- p[i] = ecc_status;
- }
-
- if (ecc_status == -1) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x\n", page);
- ecc_failed++;
- }
- }
-
- readoob:
- /* check, if we have a fs supplied oob-buffer */
- if (oob_buf) {
- /* without autoplace. Legacy mode used by YAFFS1 */
- switch(oobsel->useecc) {
- case MTD_NANDECC_AUTOPLACE:
- /* Walk through the autoplace chunks */
- for (i = 0, j = 0; j < mtd->oobavail; i++) {
- int from = oobsel->oobfree[i][0];
- int num = oobsel->oobfree[i][1];
- memcpy(&oob_buf[oob], &oob_data[from], num);
- j+= num;
- }
- oob += mtd->oobavail;
- break;
- case MTD_NANDECC_PLACE:
- /* YAFFS1 legacy mode */
- oob_data += this->eccsteps * sizeof (int);
- default:
- oob_data += mtd->oobsize;
- }
- }
- readdata:
- /* Partial page read, transfer data into fs buffer */
- if (!aligned) {
- for (j = col; j < end && read < len; j++)
- buf[read++] = data_poi[j];
- this->pagebuf = realpage;
- } else
- read += mtd->oobblock;
-
- /* Apply delay or wait for ready/busy pin
- * Do this before the AUTOINCR check, so no problems
- * arise if a chip which does auto increment
- * is marked as NOAUTOINCR by the board driver.
- */
- if (!this->dev_ready)
- udelay (this->chip_delay);
- else
- while (!this->dev_ready(mtd));
-
- if (read == len)
- break;
-
- /* For subsequent reads align to page boundary. */
- col = 0;
- /* Increment page address */
- realpage++;
-
- page = realpage & this->pagemask;
- /* Check, if we cross a chip boundary */
- if (!page) {
- chipnr++;
- this->select_chip(mtd, -1);
- this->select_chip(mtd, chipnr);
- }
- /* Check, if the chip supports auto page increment
- * or if we have hit a block boundary.
- */
- if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
- sndcmd = 1;
- }
-
- /* Deselect and wake up anyone waiting on the device */
- nand_release_chip(mtd);
-
- /*
- * Return success, if no ECC failures, else -EIO
- * fs driver will take care of that, because
- * retlen == desired len and result == -EIO
- */
- *retlen = read;
- return ecc_failed ? -EIO : 0;
-}
-
-/**
- * nand_read_oob - [MTD Interface] NAND read out-of-band
- * @mtd: MTD device structure
- * @from: offset to read from
- * @len: number of bytes to read
- * @retlen: pointer to variable to store the number of read bytes
- * @buf: the databuffer to put data
- *
- * NAND read out-of-band data from the spare area
- */
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
-{
- int i, col, page, chipnr;
- struct nand_chip *this = mtd->priv;
- int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
-
- DEBUG (MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
-
- /* Shift to get page */
- page = (int)(from >> this->page_shift);
- chipnr = (int)(from >> this->chip_shift);
-
- /* Mask to get column */
- col = from & (mtd->oobsize - 1);
-
- /* Initialize return length value */
- *retlen = 0;
-
- /* Do not allow reads past end of device */
- if ((from + len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: Attempt read beyond end of device\n");
- *retlen = 0;
- return -EINVAL;
- }
-
- /* Grab the lock and see if the device is available */
- nand_get_chip (this, mtd , FL_READING);
-
- /* Select the NAND device */
- this->select_chip(mtd, chipnr);
-
- /* Send the read command */
- this->cmdfunc (mtd, NAND_CMD_READOOB, col, page & this->pagemask);
- /*
- * Read the data, if we read more than one page
- * oob data, let the device transfer the data !
- */
- i = 0;
- while (i < len) {
- int thislen = mtd->oobsize - col;
- thislen = min_t(int, thislen, len);
- this->read_buf(mtd, &buf[i], thislen);
- i += thislen;
-
- /* Apply delay or wait for ready/busy pin
- * Do this before the AUTOINCR check, so no problems
- * arise if a chip which does auto increment
- * is marked as NOAUTOINCR by the board driver.
- */
- if (!this->dev_ready)
- udelay (this->chip_delay);
- else
- while (!this->dev_ready(mtd));
-
- /* Read more ? */
- if (i < len) {
- page++;
- col = 0;
-
- /* Check, if we cross a chip boundary */
- if (!(page & this->pagemask)) {
- chipnr++;
- this->select_chip(mtd, -1);
- this->select_chip(mtd, chipnr);
- }
-
- /* Check, if the chip supports auto page increment
- * or if we have hit a block boundary.
- */
- if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) {
- /* For subsequent page reads set offset to 0 */
- this->cmdfunc (mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask);
- }
- }
- }
-
- /* Deselect and wake up anyone waiting on the device */
- nand_release_chip(mtd);
-
- /* Return happy */
- *retlen = len;
- return 0;
-}
-
-/**
- * nand_read_raw - [GENERIC] Read raw data including oob into buffer
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @from: offset to read from
- * @len: number of bytes to read
- * @ooblen: number of oob data bytes to read
- *
- * Read raw data including oob into buffer
- */
-int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen)
-{
- struct nand_chip *this = mtd->priv;
- int page = (int) (from >> this->page_shift);
- int chip = (int) (from >> this->chip_shift);
- int sndcmd = 1;
- int cnt = 0;
- int pagesize = mtd->oobblock + mtd->oobsize;
- int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
-
- /* Do not allow reads past end of device */
- if ((from + len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_raw: Attempt read beyond end of device\n");
- return -EINVAL;
- }
-
- /* Grab the lock and see if the device is available */
- nand_get_chip (this, mtd , FL_READING);
-
- this->select_chip (mtd, chip);
-
- /* Add requested oob length */
- len += ooblen;
-
- while (len) {
- if (sndcmd)
- this->cmdfunc (mtd, NAND_CMD_READ0, 0, page & this->pagemask);
- sndcmd = 0;
-
- this->read_buf (mtd, &buf[cnt], pagesize);
-
- len -= pagesize;
- cnt += pagesize;
- page++;
-
- if (!this->dev_ready)
- udelay (this->chip_delay);
- else
- while (!this->dev_ready(mtd));
-
- /* Check, if the chip supports auto page increment */
- if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
- sndcmd = 1;
- }
-
- /* Deselect and wake up anyone waiting on the device */
- nand_release_chip(mtd);
- return 0;
-}
-
-
-/**
- * nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer
- * @mtd: MTD device structure
- * @fsbuf: buffer given by fs driver
- * @oobsel: out of band selection structre
- * @autoplace: 1 = place given buffer into the oob bytes
- * @numpages: number of pages to prepare
- *
- * Return:
- * 1. Filesystem buffer available and autoplacement is off,
- * return filesystem buffer
- * 2. No filesystem buffer or autoplace is off, return internal
- * buffer
- * 3. Filesystem buffer is given and autoplace selected
- * put data from fs buffer into internal buffer and
- * retrun internal buffer
- *
- * Note: The internal buffer is filled with 0xff. This must
- * be done only once, when no autoplacement happens
- * Autoplacement sets the buffer dirty flag, which
- * forces the 0xff fill before using the buffer again.
- *
-*/
-static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct nand_oobinfo *oobsel,
- int autoplace, int numpages)
-{
- struct nand_chip *this = mtd->priv;
- int i, len, ofs;
-
- /* Zero copy fs supplied buffer */
- if (fsbuf && !autoplace)
- return fsbuf;
-
- /* Check, if the buffer must be filled with ff again */
- if (this->oobdirty) {
- memset (this->oob_buf, 0xff,
- mtd->oobsize << (this->phys_erase_shift - this->page_shift));
- this->oobdirty = 0;
- }
-
- /* If we have no autoplacement or no fs buffer use the internal one */
- if (!autoplace || !fsbuf)
- return this->oob_buf;
-
- /* Walk through the pages and place the data */
- this->oobdirty = 1;
- ofs = 0;
- while (numpages--) {
- for (i = 0, len = 0; len < mtd->oobavail; i++) {
- int to = ofs + oobsel->oobfree[i][0];
- int num = oobsel->oobfree[i][1];
- memcpy (&this->oob_buf[to], fsbuf, num);
- len += num;
- fsbuf += num;
- }
- ofs += mtd->oobavail;
- }
- return this->oob_buf;
-}
-
-#define NOTALIGNED(x) (x & (mtd->oobblock-1)) != 0
-
-/**
- * nand_write - [MTD Interface] compability function for nand_write_ecc
- * @mtd: MTD device structure
- * @to: offset to write to
- * @len: number of bytes to write
- * @retlen: pointer to variable to store the number of written bytes
- * @buf: the data to write
- *
- * This function simply calls nand_write_ecc with oob buffer and oobsel = NULL
- *
-*/
-static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
-{
- return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL));
-}
-
-/**
- * nand_write_ecc - [MTD Interface] NAND write with ECC
- * @mtd: MTD device structure
- * @to: offset to write to
- * @len: number of bytes to write
- * @retlen: pointer to variable to store the number of written bytes
- * @buf: the data to write
- * @eccbuf: filesystem supplied oob data buffer
- * @oobsel: oob selection structure
- *
- * NAND write with ECC
- */
-static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
- size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel)
-{
- int startpage, page, ret = -EIO, oob = 0, written = 0, chipnr;
- int autoplace = 0, numpages, totalpages;
- struct nand_chip *this = mtd->priv;
- u_char *oobbuf, *bufstart;
- int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
-
- DEBUG (MTD_DEBUG_LEVEL3, "nand_write_ecc: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
-
- /* Initialize retlen, in case of early exit */
- *retlen = 0;
-
- /* Do not allow write past end of device */
- if ((to + len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: Attempt to write past end of page\n");
- return -EINVAL;
- }
-
- /* reject writes, which are not page aligned */
- if (NOTALIGNED (to) || NOTALIGNED(len)) {
- printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
- return -EINVAL;
- }
-
- /* Grab the lock and see if the device is available */
- nand_get_chip (this, mtd, FL_WRITING);
-
- /* Calculate chipnr */
- chipnr = (int)(to >> this->chip_shift);
- /* Select the NAND device */
- this->select_chip(mtd, chipnr);
-
- /* Check, if it is write protected */
- if (nand_check_wp(mtd))
- goto out;
-
- /* if oobsel is NULL, use chip defaults */
- if (oobsel == NULL)
- oobsel = &mtd->oobinfo;
-
- /* Autoplace of oob data ? Use the default placement scheme */
- if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
- oobsel = this->autooob;
- autoplace = 1;
- }
-
- /* Setup variables and oob buffer */
- totalpages = len >> this->page_shift;
- page = (int) (to >> this->page_shift);
- /* Invalidate the page cache, if we write to the cached page */
- if (page <= this->pagebuf && this->pagebuf < (page + totalpages))
- this->pagebuf = -1;
-
- /* Set it relative to chip */
- page &= this->pagemask;
- startpage = page;
- /* Calc number of pages we can write in one go */
- numpages = min (ppblock - (startpage & (ppblock - 1)), totalpages);
- oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel, autoplace, numpages);
- bufstart = (u_char *)buf;
-
- /* Loop until all data is written */
- while (written < len) {
-
- this->data_poi = (u_char*) &buf[written];
- /* Write one page. If this is the last page to write
- * or the last page in this block, then use the
- * real pageprogram command, else select cached programming
- * if supported by the chip.
- */
- ret = nand_write_page (mtd, this, page, &oobbuf[oob], oobsel, (--numpages > 0));
- if (ret) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: write_page failed %d\n", ret);
- goto out;
- }
- /* Next oob page */
- oob += mtd->oobsize;
- /* Update written bytes count */
- written += mtd->oobblock;
- if (written == len)
- goto cmp;
-
- /* Increment page address */
- page++;
-
- /* Have we hit a block boundary ? Then we have to verify and
- * if verify is ok, we have to setup the oob buffer for
- * the next pages.
- */
- if (!(page & (ppblock - 1))){
- int ofs;
- this->data_poi = bufstart;
- ret = nand_verify_pages (mtd, this, startpage,
- page - startpage,
- oobbuf, oobsel, chipnr, (eccbuf != NULL));
- if (ret) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
- goto out;
- }
- *retlen = written;
-
- ofs = autoplace ? mtd->oobavail : mtd->oobsize;
- if (eccbuf)
- eccbuf += (page - startpage) * ofs;
- totalpages -= page - startpage;
- numpages = min (totalpages, ppblock);
- page &= this->pagemask;
- startpage = page;
- oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel,
- autoplace, numpages);
- /* Check, if we cross a chip boundary */
- if (!page) {
- chipnr++;
- this->select_chip(mtd, -1);
- this->select_chip(mtd, chipnr);
- }
- }
- }
- /* Verify the remaining pages */
-cmp:
- this->data_poi = bufstart;
- ret = nand_verify_pages (mtd, this, startpage, totalpages,
- oobbuf, oobsel, chipnr, (eccbuf != NULL));
- if (!ret)
- *retlen = written;
- else
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
-
-out:
- /* Deselect and wake up anyone waiting on the device */
- nand_release_chip(mtd);
-
- return ret;
-}
-
-
-/**
- * nand_write_oob - [MTD Interface] NAND write out-of-band
- * @mtd: MTD device structure
- * @to: offset to write to
- * @len: number of bytes to write
- * @retlen: pointer to variable to store the number of written bytes
- * @buf: the data to write
- *
- * NAND write out-of-band
- */
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
-{
- int column, page, status, ret = -EIO, chipnr;
- struct nand_chip *this = mtd->priv;
-
- DEBUG (MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
-
- /* Shift to get page */
- page = (int) (to >> this->page_shift);
- chipnr = (int) (to >> this->chip_shift);
-
- /* Mask to get column */
- column = to & (mtd->oobsize - 1);
-
- /* Initialize return length value */
- *retlen = 0;
-
- /* Do not allow write past end of page */
- if ((column + len) > mtd->oobsize) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: Attempt to write past end of page\n");
- return -EINVAL;
- }
-
- /* Grab the lock and see if the device is available */
- nand_get_chip (this, mtd, FL_WRITING);
-
- /* Select the NAND device */
- this->select_chip(mtd, chipnr);
-
- /* Reset the chip. Some chips (like the Toshiba TC5832DC found
- in one of my DiskOnChip 2000 test units) will clear the whole
- data page too if we don't do this. I have no clue why, but
- I seem to have 'fixed' it in the doc2000 driver in
- August 1999. dwmw2. */
- this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
-
- /* Check, if it is write protected */
- if (nand_check_wp(mtd))
- goto out;
-
- /* Invalidate the page cache, if we write to the cached page */
- if (page == this->pagebuf)
- this->pagebuf = -1;
-
- if (NAND_MUST_PAD(this)) {
- /* Write out desired data */
- this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock, page & this->pagemask);
- /* prepad 0xff for partial programming */
- this->write_buf(mtd, ffchars, column);
- /* write data */
- this->write_buf(mtd, buf, len);
- /* postpad 0xff for partial programming */
- this->write_buf(mtd, ffchars, mtd->oobsize - (len+column));
- } else {
- /* Write out desired data */
- this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock + column, page & this->pagemask);
- /* write data */
- this->write_buf(mtd, buf, len);
- }
- /* Send command to program the OOB data */
- this->cmdfunc (mtd, NAND_CMD_PAGEPROG, -1, -1);
-
- status = this->waitfunc (mtd, this, FL_WRITING);
-
- /* See if device thinks it succeeded */
- if (status & 0x01) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write, page 0x%08x\n", page);
- ret = -EIO;
- goto out;
- }
- /* Return happy */
- *retlen = len;
-
-#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
- /* Send command to read back the data */
- this->cmdfunc (mtd, NAND_CMD_READOOB, column, page & this->pagemask);
-
- if (this->verify_buf(mtd, buf, len)) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write verify, page 0x%08x\n", page);
- ret = -EIO;
- goto out;
- }
-#endif
- ret = 0;
-out:
- /* Deselect and wake up anyone waiting on the device */
- nand_release_chip(mtd);
-
- return ret;
-}
-
-
-/**
- * nand_writev - [MTD Interface] compabilty function for nand_writev_ecc
- * @mtd: MTD device structure
- * @vecs: the iovectors to write
- * @count: number of vectors
- * @to: offset to write to
- * @retlen: pointer to variable to store the number of written bytes
- *
- * NAND write with kvec. This just calls the ecc function
- */
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
- loff_t to, size_t * retlen)
-{
- return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL));
-}
-
-/**
- * nand_writev_ecc - [MTD Interface] write with iovec with ecc
- * @mtd: MTD device structure
- * @vecs: the iovectors to write
- * @count: number of vectors
- * @to: offset to write to
- * @retlen: pointer to variable to store the number of written bytes
- * @eccbuf: filesystem supplied oob data buffer
- * @oobsel: oob selection structure
- *
- * NAND write with iovec with ecc
- */
-static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
- loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel)
-{
- int i, page, len, total_len, ret = -EIO, written = 0, chipnr;
- int oob, numpages, autoplace = 0, startpage;
- struct nand_chip *this = mtd->priv;
- int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
- u_char *oobbuf, *bufstart;
-
- /* Preset written len for early exit */
- *retlen = 0;
-
- /* Calculate total length of data */
- total_len = 0;
- for (i = 0; i < count; i++)
- total_len += (int) vecs[i].iov_len;
-
- DEBUG (MTD_DEBUG_LEVEL3,
- "nand_writev: to = 0x%08x, len = %i, count = %ld\n", (unsigned int) to, (unsigned int) total_len, count);
-
- /* Do not allow write past end of page */
- if ((to + total_len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_writev: Attempted write past end of device\n");
- return -EINVAL;
- }
-
- /* reject writes, which are not page aligned */
- if (NOTALIGNED (to) || NOTALIGNED(total_len)) {
- printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
- return -EINVAL;
- }
-
- /* Grab the lock and see if the device is available */
- nand_get_chip (this, mtd, FL_WRITING);
-
- /* Get the current chip-nr */
- chipnr = (int) (to >> this->chip_shift);
- /* Select the NAND device */
- this->select_chip(mtd, chipnr);
-
- /* Check, if it is write protected */
- if (nand_check_wp(mtd))
- goto out;
-
- /* if oobsel is NULL, use chip defaults */
- if (oobsel == NULL)
- oobsel = &mtd->oobinfo;
-
- /* Autoplace of oob data ? Use the default placement scheme */
- if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
- oobsel = this->autooob;
- autoplace = 1;
- }
-
- /* Setup start page */
- page = (int) (to >> this->page_shift);
- /* Invalidate the page cache, if we write to the cached page */
- if (page <= this->pagebuf && this->pagebuf < ((to + total_len) >> this->page_shift))
- this->pagebuf = -1;
-
- startpage = page & this->pagemask;
-
- /* Loop until all kvec' data has been written */
- len = 0;
- while (count) {
- /* If the given tuple is >= pagesize then
- * write it out from the iov
- */
- if ((vecs->iov_len - len) >= mtd->oobblock) {
- /* Calc number of pages we can write
- * out of this iov in one go */
- numpages = (vecs->iov_len - len) >> this->page_shift;
- /* Do not cross block boundaries */
- numpages = min (ppblock - (startpage & (ppblock - 1)), numpages);
- oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
- bufstart = (u_char *)vecs->iov_base;
- bufstart += len;
- this->data_poi = bufstart;
- oob = 0;
- for (i = 1; i <= numpages; i++) {
- /* Write one page. If this is the last page to write
- * then use the real pageprogram command, else select
- * cached programming if supported by the chip.
- */
- ret = nand_write_page (mtd, this, page & this->pagemask,
- &oobbuf[oob], oobsel, i != numpages);
- if (ret)
- goto out;
- this->data_poi += mtd->oobblock;
- len += mtd->oobblock;
- oob += mtd->oobsize;
- page++;
- }
- /* Check, if we have to switch to the next tuple */
- if (len >= (int) vecs->iov_len) {
- vecs++;
- len = 0;
- count--;
- }
- } else {
- /* We must use the internal buffer, read data out of each
- * tuple until we have a full page to write
- */
- int cnt = 0;
- while (cnt < mtd->oobblock) {
- if (vecs->iov_base != NULL && vecs->iov_len)
- this->data_buf[cnt++] = ((u_char *) vecs->iov_base)[len++];
- /* Check, if we have to switch to the next tuple */
- if (len >= (int) vecs->iov_len) {
- vecs++;
- len = 0;
- count--;
- }
- }
- this->pagebuf = page;
- this->data_poi = this->data_buf;
- bufstart = this->data_poi;
- numpages = 1;
- oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
- ret = nand_write_page (mtd, this, page & this->pagemask,
- oobbuf, oobsel, 0);
- if (ret)
- goto out;
- page++;
- }
-
- this->data_poi = bufstart;
- ret = nand_verify_pages (mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0);
- if (ret)
- goto out;
-
- written += mtd->oobblock * numpages;
- /* All done ? */
- if (!count)
- break;
-
- startpage = page & this->pagemask;
- /* Check, if we cross a chip boundary */
- if (!startpage) {
- chipnr++;
- this->select_chip(mtd, -1);
- this->select_chip(mtd, chipnr);
- }
- }
- ret = 0;
-out:
- /* Deselect and wake up anyone waiting on the device */
- nand_release_chip(mtd);
-
- *retlen = written;
- return ret;
-}
-
-/**
- * single_erease_cmd - [GENERIC] NAND standard block erase command function
- * @mtd: MTD device structure
- * @page: the page address of the block which will be erased
- *
- * Standard erase command for NAND chips
- */
-static void single_erase_cmd (struct mtd_info *mtd, int page)
-{
- struct nand_chip *this = mtd->priv;
- /* Send commands to erase a block */
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
- this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
-}
-
-/**
- * multi_erease_cmd - [GENERIC] AND specific block erase command function
- * @mtd: MTD device structure
- * @page: the page address of the block which will be erased
- *
- * AND multi block erase command function
- * Erase 4 consecutive blocks
- */
-static void multi_erase_cmd (struct mtd_info *mtd, int page)
-{
- struct nand_chip *this = mtd->priv;
- /* Send commands to erase a block */
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
- this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
-}
-
-/**
- * nand_erase - [MTD Interface] erase block(s)
- * @mtd: MTD device structure
- * @instr: erase instruction
- *
- * Erase one ore more blocks
- */
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
-{
- return nand_erase_nand (mtd, instr, 0);
-}
-
-/**
- * nand_erase_intern - [NAND Interface] erase block(s)
- * @mtd: MTD device structure
- * @instr: erase instruction
- * @allowbbt: allow erasing the bbt area
- *
- * Erase one ore more blocks
- */
-int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt)
-{
- int page, len, status, pages_per_block, ret, chipnr;
- struct nand_chip *this = mtd->priv;
-
- DEBUG (MTD_DEBUG_LEVEL3,
- "nand_erase: start = 0x%08x, len = %i\n", (unsigned int) instr->addr, (unsigned int) instr->len);
-
- /* Start address must align on block boundary */
- if (instr->addr & ((1 << this->phys_erase_shift) - 1)) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Unaligned address\n");
- return -EINVAL;
- }
-
- /* Length must align on block boundary */
- if (instr->len & ((1 << this->phys_erase_shift) - 1)) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Length not block aligned\n");
- return -EINVAL;
- }
-
- /* Do not allow erase past end of device */
- if ((instr->len + instr->addr) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Erase past end of device\n");
- return -EINVAL;
- }
-
- instr->fail_addr = 0xffffffff;
-
- /* Grab the lock and see if the device is available */
- nand_get_chip (this, mtd, FL_ERASING);
-
- /* Shift to get first page */
- page = (int) (instr->addr >> this->page_shift);
- chipnr = (int) (instr->addr >> this->chip_shift);
-
- /* Calculate pages in each block */
- pages_per_block = 1 << (this->phys_erase_shift - this->page_shift);
-
- /* Select the NAND device */
- this->select_chip(mtd, chipnr);
-
- /* Check the WP bit */
- /* Check, if it is write protected */
- if (nand_check_wp(mtd)) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Device is write protected!!!\n");
- instr->state = MTD_ERASE_FAILED;
- goto erase_exit;
- }
-
- /* Loop through the pages */
- len = instr->len;
-
- instr->state = MTD_ERASING;
-
- while (len) {
- /* Check if we have a bad block, we do not erase bad blocks ! */
- if (nand_block_checkbad(mtd, ((loff_t) page) << this->page_shift, 0, allowbbt)) {
- printk (KERN_WARNING "nand_erase: attempt to erase a bad block at page 0x%08x\n", page);
- instr->state = MTD_ERASE_FAILED;
- goto erase_exit;
- }
-
- /* Invalidate the page cache, if we erase the block which contains
- the current cached page */
- if (page <= this->pagebuf && this->pagebuf < (page + pages_per_block))
- this->pagebuf = -1;
-
- this->erase_cmd (mtd, page & this->pagemask);
-
- status = this->waitfunc (mtd, this, FL_ERASING);
-
- /* See if block erase succeeded */
- if (status & 0x01) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: " "Failed erase, page 0x%08x\n", page);
- instr->state = MTD_ERASE_FAILED;
- instr->fail_addr = (page << this->page_shift);
- goto erase_exit;
- }
-
- /* Increment page address and decrement length */
- len -= (1 << this->phys_erase_shift);
- page += pages_per_block;
-
- /* Check, if we cross a chip boundary */
- if (len && !(page & this->pagemask)) {
- chipnr++;
- this->select_chip(mtd, -1);
- this->select_chip(mtd, chipnr);
- }
- }
- instr->state = MTD_ERASE_DONE;
-
-erase_exit:
-
- ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
- /* Do call back function */
- if (!ret && instr->callback)
- instr->callback (instr);
-
- /* Deselect and wake up anyone waiting on the device */
- nand_release_chip(mtd);
-
- /* Return more or less happy */
- return ret;
-}
-
-/**
- * nand_sync - [MTD Interface] sync
- * @mtd: MTD device structure
- *
- * Sync is actually a wait for chip ready function
- */
-static void nand_sync (struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- DECLARE_WAITQUEUE (wait, current);
-
- DEBUG (MTD_DEBUG_LEVEL3, "nand_sync: called\n");
-
-retry:
- /* Grab the spinlock */
- spin_lock_bh (&this->chip_lock);
-
- /* See what's going on */
- switch (this->state) {
- case FL_READY:
- case FL_SYNCING:
- this->state = FL_SYNCING;
- spin_unlock_bh (&this->chip_lock);
- break;
-
- default:
- /* Not an idle state */
- add_wait_queue (&this->wq, &wait);
- spin_unlock_bh (&this->chip_lock);
- schedule ();
-
- remove_wait_queue (&this->wq, &wait);
- goto retry;
- }
-
- /* Lock the device */
- spin_lock_bh (&this->chip_lock);
-
- /* Set the device to be ready again */
- if (this->state == FL_SYNCING) {
- this->state = FL_READY;
- wake_up (&this->wq);
- }
-
- /* Unlock the device */
- spin_unlock_bh (&this->chip_lock);
-}
-
-
-/**
- * nand_block_isbad - [MTD Interface] Check whether the block at the given offset is bad
- * @mtd: MTD device structure
- * @ofs: offset relative to mtd start
- */
-static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs)
-{
- /* Check for invalid offset */
- if (ofs > mtd->size)
- return -EINVAL;
-
- return nand_block_checkbad (mtd, ofs, 1, 0);
-}
-
-/**
- * nand_block_markbad - [MTD Interface] Mark the block at the given offset as bad
- * @mtd: MTD device structure
- * @ofs: offset relative to mtd start
- */
-static int nand_block_markbad (struct mtd_info *mtd, loff_t ofs)
-{
- struct nand_chip *this = mtd->priv;
- int ret;
-
- if ((ret = nand_block_isbad(mtd, ofs))) {
- /* If it was bad already, return success and do nothing. */
- if (ret > 0)
- return 0;
- return ret;
- }
-
- return this->block_markbad(mtd, ofs);
-}
-
-/**
- * nand_scan - [NAND Interface] Scan for the NAND device
- * @mtd: MTD device structure
- * @maxchips: Number of chips to scan for
- *
- * This fills out all the not initialized function pointers
- * with the defaults.
- * The flash ID is read and the mtd/chip structures are
- * filled with the appropriate values. Buffers are allocated if
- * they are not provided by the board driver
- *
- */
-int nand_scan (struct mtd_info *mtd, int maxchips)
-{
- int i, j, nand_maf_id, nand_dev_id, busw;
- struct nand_chip *this = mtd->priv;
-
- /* Get buswidth to select the correct functions*/
- busw = this->options & NAND_BUSWIDTH_16;
-
- /* check for proper chip_delay setup, set 20us if not */
- if (!this->chip_delay)
- this->chip_delay = 20;
-
- /* check, if a user supplied command function given */
- if (this->cmdfunc == NULL)
- this->cmdfunc = nand_command;
-
- /* check, if a user supplied wait function given */
- if (this->waitfunc == NULL)
- this->waitfunc = nand_wait;
-
- if (!this->select_chip)
- this->select_chip = nand_select_chip;
- if (!this->write_byte)
- this->write_byte = busw ? nand_write_byte16 : nand_write_byte;
- if (!this->read_byte)
- this->read_byte = busw ? nand_read_byte16 : nand_read_byte;
- if (!this->write_word)
- this->write_word = nand_write_word;
- if (!this->read_word)
- this->read_word = nand_read_word;
- if (!this->block_bad)
- this->block_bad = nand_block_bad;
- if (!this->block_markbad)
- this->block_markbad = nand_default_block_markbad;
- if (!this->write_buf)
- this->write_buf = busw ? nand_write_buf16 : nand_write_buf;
- if (!this->read_buf)
- this->read_buf = busw ? nand_read_buf16 : nand_read_buf;
- if (!this->verify_buf)
- this->verify_buf = busw ? nand_verify_buf16 : nand_verify_buf;
- if (!this->scan_bbt)
- this->scan_bbt = nand_default_bbt;
-
- /* Select the device */
- this->select_chip(mtd, 0);
-
- /* Send the command for reading device ID */
- this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
-
- /* Read manufacturer and device IDs */
- nand_maf_id = this->read_byte(mtd);
- nand_dev_id = this->read_byte(mtd);
-
- /* Print and store flash device information */
- for (i = 0; nand_flash_ids[i].name != NULL; i++) {
-
- if (nand_dev_id != nand_flash_ids[i].id)
- continue;
-
- if (!mtd->name) mtd->name = nand_flash_ids[i].name;
- this->chipsize = nand_flash_ids[i].chipsize << 20;
-
- /* New devices have all the information in additional id bytes */
- if (!nand_flash_ids[i].pagesize) {
- int extid;
- /* The 3rd id byte contains non relevant data ATM */
- extid = this->read_byte(mtd);
- /* The 4th id byte is the important one */
- extid = this->read_byte(mtd);
- /* Calc pagesize */
- mtd->oobblock = 1024 << (extid & 0x3);
- extid >>= 2;
- /* Calc oobsize */
- mtd->oobsize = (8 << (extid & 0x03)) * (mtd->oobblock / 512);
- extid >>= 2;
- /* Calc blocksize. Blocksize is multiples of 64KiB */
- mtd->erasesize = (64 * 1024) << (extid & 0x03);
- extid >>= 2;
- /* Get buswidth information */
- busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
-
- } else {
- /* Old devices have this data hardcoded in the
- * device id table */
- mtd->erasesize = nand_flash_ids[i].erasesize;
- mtd->oobblock = nand_flash_ids[i].pagesize;
- mtd->oobsize = mtd->oobblock / 32;
- busw = nand_flash_ids[i].options & NAND_BUSWIDTH_16;
- }
-
- /* Check, if buswidth is correct. Hardware drivers should set
- * this correct ! */
- if (busw != (this->options & NAND_BUSWIDTH_16)) {
- printk (KERN_INFO "NAND device: Manufacturer ID:"
- " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
- nand_manuf_ids[i].name , mtd->name);
- printk (KERN_WARNING
- "NAND bus width %d instead %d bit\n",
- (this->options & NAND_BUSWIDTH_16) ? 16 : 8,
- busw ? 16 : 8);
- this->select_chip(mtd, -1);
- return 1;
- }
-
- /* Calculate the address shift from the page size */
- this->page_shift = ffs(mtd->oobblock) - 1;
- this->bbt_erase_shift = this->phys_erase_shift = ffs(mtd->erasesize) - 1;
- this->chip_shift = ffs(this->chipsize) - 1;
-
- /* Set the bad block position */
- this->badblockpos = mtd->oobblock > 512 ?
- NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS;
-
- /* Get chip options, preserve non chip based options */
- this->options &= ~NAND_CHIPOPTIONS_MSK;
- this->options |= nand_flash_ids[i].options & NAND_CHIPOPTIONS_MSK;
- /* Set this as a default. Board drivers can override it, if neccecary */
- this->options |= NAND_NO_AUTOINCR;
- /* Check if this is a not a samsung device. Do not clear the options
- * for chips which are not having an extended id.
- */
- if (nand_maf_id != NAND_MFR_SAMSUNG && !nand_flash_ids[i].pagesize)
- this->options &= ~NAND_SAMSUNG_LP_OPTIONS;
-
- /* Check for AND chips with 4 page planes */
- if (this->options & NAND_4PAGE_ARRAY)
- this->erase_cmd = multi_erase_cmd;
- else
- this->erase_cmd = single_erase_cmd;
-
- /* Do not replace user supplied command function ! */
- if (mtd->oobblock > 512 && this->cmdfunc == nand_command)
- this->cmdfunc = nand_command_lp;
-
- /* Try to identify manufacturer */
- for (j = 0; nand_manuf_ids[j].id != 0x0; j++) {
- if (nand_manuf_ids[j].id == nand_maf_id)
- break;
- }
- printk (KERN_INFO "NAND device: Manufacturer ID:"
- " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
- nand_manuf_ids[j].name , nand_flash_ids[i].name);
- break;
- }
-
- if (!nand_flash_ids[i].name) {
- printk (KERN_WARNING "No NAND device found!!!\n");
- this->select_chip(mtd, -1);
- return 1;
- }
-
- for (i=1; i < maxchips; i++) {
- this->select_chip(mtd, i);
-
- /* Send the command for reading device ID */
- this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
-
- /* Read manufacturer and device IDs */
- if (nand_maf_id != this->read_byte(mtd) ||
- nand_dev_id != this->read_byte(mtd))
- break;
- }
- if (i > 1)
- printk(KERN_INFO "%d NAND chips detected\n", i);
-
- /* Allocate buffers, if neccecary */
- if (!this->oob_buf) {
- size_t len;
- len = mtd->oobsize << (this->phys_erase_shift - this->page_shift);
- this->oob_buf = kmalloc (len, GFP_KERNEL);
- if (!this->oob_buf) {
- printk (KERN_ERR "nand_scan(): Cannot allocate oob_buf\n");
- return -ENOMEM;
- }
- this->options |= NAND_OOBBUF_ALLOC;
- }
-
- if (!this->data_buf) {
- size_t len;
- len = mtd->oobblock + mtd->oobsize;
- this->data_buf = kmalloc (len, GFP_KERNEL);
- if (!this->data_buf) {
- if (this->options & NAND_OOBBUF_ALLOC)
- kfree (this->oob_buf);
- printk (KERN_ERR "nand_scan(): Cannot allocate data_buf\n");
- return -ENOMEM;
- }
- this->options |= NAND_DATABUF_ALLOC;
- }
-
- /* Store the number of chips and calc total size for mtd */
- this->numchips = i;
- mtd->size = i * this->chipsize;
- /* Convert chipsize to number of pages per chip -1. */
- this->pagemask = (this->chipsize >> this->page_shift) - 1;
- /* Preset the internal oob buffer */
- memset(this->oob_buf, 0xff, mtd->oobsize << (this->phys_erase_shift - this->page_shift));
-
- /* If no default placement scheme is given, select an
- * appropriate one */
- if (!this->autooob) {
- /* Select the appropriate default oob placement scheme for
- * placement agnostic filesystems */
- switch (mtd->oobsize) {
- case 8:
- this->autooob = &nand_oob_8;
- break;
- case 16:
- this->autooob = &nand_oob_16;
- break;
- case 64:
- this->autooob = &nand_oob_64;
- break;
- default:
- printk (KERN_WARNING "No oob scheme defined for oobsize %d\n",
- mtd->oobsize);
- BUG();
- }
- }
-
- /* The number of bytes available for the filesystem to place fs dependend
- * oob data */
- if (this->options & NAND_BUSWIDTH_16) {
- mtd->oobavail = mtd->oobsize - (this->autooob->eccbytes + 2);
- if (this->autooob->eccbytes & 0x01)
- mtd->oobavail--;
- } else
- mtd->oobavail = mtd->oobsize - (this->autooob->eccbytes + 1);
-
- /*
- * check ECC mode, default to software
- * if 3byte/512byte hardware ECC is selected and we have 256 byte pagesize
- * fallback to software ECC
- */
- this->eccsize = 256; /* set default eccsize */
-
- switch (this->eccmode) {
-
- case NAND_ECC_HW3_512:
- case NAND_ECC_HW6_512:
- case NAND_ECC_HW8_512:
- if (mtd->oobblock == 256) {
- printk (KERN_WARNING "512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC \n");
- this->eccmode = NAND_ECC_SOFT;
- this->calculate_ecc = nand_calculate_ecc;
- this->correct_data = nand_correct_data;
- break;
- } else
- this->eccsize = 512; /* set eccsize to 512 and fall through for function check */
-
- case NAND_ECC_HW3_256:
- if (this->calculate_ecc && this->correct_data && this->enable_hwecc)
- break;
- printk (KERN_WARNING "No ECC functions supplied, Hardware ECC not possible\n");
- BUG();
-
- case NAND_ECC_NONE:
- printk (KERN_WARNING "NAND_ECC_NONE selected by board driver. This is not recommended !!\n");
- this->eccmode = NAND_ECC_NONE;
- break;
-
- case NAND_ECC_SOFT:
- this->calculate_ecc = nand_calculate_ecc;
- this->correct_data = nand_correct_data;
- break;
-
- default:
- printk (KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode);
- BUG();
- }
-
- mtd->eccsize = this->eccsize;
-
- /* Set the number of read / write steps for one page to ensure ECC generation */
- switch (this->eccmode) {
- case NAND_ECC_HW3_512:
- case NAND_ECC_HW6_512:
- case NAND_ECC_HW8_512:
- this->eccsteps = mtd->oobblock / 512;
- break;
- case NAND_ECC_HW3_256:
- case NAND_ECC_SOFT:
- this->eccsteps = mtd->oobblock / 256;
- break;
-
- case NAND_ECC_NONE:
- this->eccsteps = 1;
- break;
- }
-
- /* Initialize state, waitqueue and spinlock */
- this->state = FL_READY;
- init_waitqueue_head (&this->wq);
- spin_lock_init (&this->chip_lock);
-
- /* De-select the device */
- this->select_chip(mtd, -1);
-
- /* Invalidate the pagebuffer reference */
- this->pagebuf = -1;
-
- /* Fill in remaining MTD driver data */
- mtd->type = MTD_NANDFLASH;
- mtd->flags = MTD_CAP_NANDFLASH | MTD_ECC;
- mtd->ecctype = MTD_ECC_SW;
- mtd->erase = nand_erase;
- mtd->point = NULL;
- mtd->unpoint = NULL;
- mtd->read = nand_read;
- mtd->write = nand_write;
- mtd->read_ecc = nand_read_ecc;
- mtd->write_ecc = nand_write_ecc;
- mtd->read_oob = nand_read_oob;
- mtd->write_oob = nand_write_oob;
- mtd->readv = NULL;
- mtd->writev = nand_writev;
- mtd->writev_ecc = nand_writev_ecc;
- mtd->sync = nand_sync;
- mtd->lock = NULL;
- mtd->unlock = NULL;
- mtd->suspend = NULL;
- mtd->resume = NULL;
- mtd->block_isbad = nand_block_isbad;
- mtd->block_markbad = nand_block_markbad;
-
- /* and make the autooob the default one */
- memcpy(&mtd->oobinfo, this->autooob, sizeof(mtd->oobinfo));
-
- mtd->owner = THIS_MODULE;
-
- /* Build bad block table */
- return this->scan_bbt (mtd);
-}
-
-/**
- * nand_release - [NAND Interface] Free resources held by the NAND device
- * @mtd: MTD device structure
-*/
-void nand_release (struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
-
-#if defined(CONFIG_MTD_PARTITIONS) || defined(CONFIG_MTD_PARTITIONS_MODULE)
- /* Unregister partitions */
- del_mtd_partitions (mtd);
-#endif
- /* Unregister the device */
- del_mtd_device (mtd);
-
- /* Free bad block table memory, if allocated */
- if (this->bbt)
- kfree (this->bbt);
- /* Buffer allocated by nand_scan ? */
- if (this->options & NAND_OOBBUF_ALLOC)
- kfree (this->oob_buf);
- /* Buffer allocated by nand_scan ? */
- if (this->options & NAND_DATABUF_ALLOC)
- kfree (this->data_buf);
-}
-
-EXPORT_SYMBOL (nand_scan);
-EXPORT_SYMBOL (nand_release);
-
-MODULE_LICENSE ("GPL");
-MODULE_AUTHOR ("Steven J. Hill <sjhill@realitydiluted.com>, Thomas Gleixner <tglx@linutronix.de>");
-MODULE_DESCRIPTION ("Generic NAND flash driver code");
+++ /dev/null
-/*
- * drivers/mtd/nand_bbt.c
- *
- * Overview:
- * Bad block table support for the NAND driver
- *
- * Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de)
- *
- * $Id: nand_bbt.c,v 1.24 2004/06/28 08:25:35 gleixner Exp $
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Description:
- *
- * When nand_scan_bbt is called, then it tries to find the bad block table
- * depending on the options in the bbt descriptor(s). If a bbt is found
- * then the contents are read and the memory based bbt is created. If a
- * mirrored bbt is selected then the mirror is searched too and the
- * versions are compared. If the mirror has a greater version number
- * than the mirror bbt is used to build the memory based bbt.
- * If the tables are not versioned, then we "or" the bad block information.
- * If one of the bbt's is out of date or does not exist it is (re)created.
- * If no bbt exists at all then the device is scanned for factory marked
- * good / bad blocks and the bad block tables are created.
- *
- * For manufacturer created bbts like the one found on M-SYS DOC devices
- * the bbt is searched and read but never created
- *
- * The autogenerated bad block table is located in the last good blocks
- * of the device. The table is mirrored, so it can be updated eventually.
- * The table is marked in the oob area with an ident pattern and a version
- * number which indicates which of both tables is more up to date.
- *
- * The table uses 2 bits per block
- * 11b: block is good
- * 00b: block is factory marked bad
- * 01b, 10b: block is marked bad due to wear
- *
- * The memory bad block table uses the following scheme:
- * 00b: block is good
- * 01b: block is marked bad due to wear
- * 10b: block is reserved (to protect the bbt area)
- * 11b: block is factory marked bad
- *
- * Multichip devices like DOC store the bad block info per floor.
- *
- * Following assumptions are made:
- * - bbts start at a page boundary, if autolocated on a block boundary
- * - the space neccecary for a bbt in FLASH does not exceed a block boundary
- *
- */
-
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/nand_ecc.h>
-#include <linux/mtd/compatmac.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-
-
-/**
- * check_pattern - [GENERIC] check if a pattern is in the buffer
- * @buf: the buffer to search
- * @len: the length of buffer to search
- * @paglen: the pagelength
- * @td: search pattern descriptor
- *
- * Check for a pattern at the given place. Used to search bad block
- * tables and good / bad block identifiers.
- * If the SCAN_EMPTY option is set then check, if all bytes except the
- * pattern area contain 0xff
- *
-*/
-static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_descr *td)
-{
- int i, end;
- uint8_t *p = buf;
-
- end = paglen + td->offs;
- if (td->options & NAND_BBT_SCANEMPTY) {
- for (i = 0; i < end; i++) {
- if (p[i] != 0xff)
- return -1;
- }
- }
- p += end;
-
- /* Compare the pattern */
- for (i = 0; i < td->len; i++) {
- if (p[i] != td->pattern[i])
- return -1;
- }
-
- p += td->len;
- end += td->len;
- if (td->options & NAND_BBT_SCANEMPTY) {
- for (i = end; i < len; i++) {
- if (*p++ != 0xff)
- return -1;
- }
- }
- return 0;
-}
-
-/**
- * read_bbt - [GENERIC] Read the bad block table starting from page
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @page: the starting page
- * @num: the number of bbt descriptors to read
- * @bits: number of bits per block
- * @offs: offset in the memory table
- *
- * Read the bad block table starting from page.
- *
- */
-static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
- int bits, int offs, int reserved_block_code)
-{
- int res, i, j, act = 0;
- struct nand_chip *this = mtd->priv;
- size_t retlen, len, totlen;
- loff_t from;
- uint8_t msk = (uint8_t) ((1 << bits) - 1);
-
- totlen = (num * bits) >> 3;
- from = ((loff_t)page) << this->page_shift;
-
- while (totlen) {
- len = min (totlen, (size_t) (1 << this->bbt_erase_shift));
- res = mtd->read_ecc (mtd, from, len, &retlen, buf, NULL, this->autooob);
- if (res < 0) {
- if (retlen != len) {
- printk (KERN_INFO "nand_bbt: Error reading bad block table\n");
- return res;
- }
- printk (KERN_WARNING "nand_bbt: ECC error while reading bad block table\n");
- }
-
- /* Analyse data */
- for (i = 0; i < len; i++) {
- uint8_t dat = buf[i];
- for (j = 0; j < 8; j += bits, act += 2) {
- uint8_t tmp = (dat >> j) & msk;
- if (tmp == msk)
- continue;
- if (reserved_block_code &&
- (tmp == reserved_block_code)) {
- printk (KERN_DEBUG "nand_read_bbt: Reserved block at 0x%08x\n",
- ((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
- this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06);
- continue;
- }
- /* Leave it for now, if its matured we can move this
- * message to MTD_DEBUG_LEVEL0 */
- printk (KERN_DEBUG "nand_read_bbt: Bad block at 0x%08x\n",
- ((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
- /* Factory marked bad or worn out ? */
- if (tmp == 0)
- this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06);
- else
- this->bbt[offs + (act >> 3)] |= 0x1 << (act & 0x06);
- }
- }
- totlen -= len;
- from += len;
- }
- return 0;
-}
-
-/**
- * read_abs_bbt - [GENERIC] Read the bad block table starting at a given page
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @td: descriptor for the bad block table
- * @chip: read the table for a specific chip, -1 read all chips.
- * Applies only if NAND_BBT_PERCHIP option is set
- *
- * Read the bad block table for all chips starting at a given page
- * We assume that the bbt bits are in consecutive order.
-*/
-static int read_abs_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
-{
- struct nand_chip *this = mtd->priv;
- int res = 0, i;
- int bits;
-
- bits = td->options & NAND_BBT_NRBITS_MSK;
- if (td->options & NAND_BBT_PERCHIP) {
- int offs = 0;
- for (i = 0; i < this->numchips; i++) {
- if (chip == -1 || chip == i)
- res = read_bbt (mtd, buf, td->pages[i], this->chipsize >> this->bbt_erase_shift, bits, offs, td->reserved_block_code);
- if (res)
- return res;
- offs += this->chipsize >> (this->bbt_erase_shift + 2);
- }
- } else {
- res = read_bbt (mtd, buf, td->pages[0], mtd->size >> this->bbt_erase_shift, bits, 0, td->reserved_block_code);
- if (res)
- return res;
- }
- return 0;
-}
-
-/**
- * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @td: descriptor for the bad block table
- * @md: descriptor for the bad block table mirror
- *
- * Read the bad block table(s) for all chips starting at a given page
- * We assume that the bbt bits are in consecutive order.
- *
-*/
-static int read_abs_bbts (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td,
- struct nand_bbt_descr *md)
-{
- struct nand_chip *this = mtd->priv;
-
- /* Read the primary version, if available */
- if (td->options & NAND_BBT_VERSION) {
- nand_read_raw (mtd, buf, td->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize);
- td->version[0] = buf[mtd->oobblock + td->veroffs];
- printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", td->pages[0], td->version[0]);
- }
-
- /* Read the mirror version, if available */
- if (md && (md->options & NAND_BBT_VERSION)) {
- nand_read_raw (mtd, buf, md->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize);
- md->version[0] = buf[mtd->oobblock + md->veroffs];
- printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", md->pages[0], md->version[0]);
- }
-
- return 1;
-}
-
-/**
- * create_bbt - [GENERIC] Create a bad block table by scanning the device
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @bd: descriptor for the good/bad block search pattern
- * @chip: create the table for a specific chip, -1 read all chips.
- * Applies only if NAND_BBT_PERCHIP option is set
- *
- * Create a bad block table by scanning the device
- * for the given good/bad block identify pattern
- */
-static void create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd, int chip)
-{
- struct nand_chip *this = mtd->priv;
- int i, j, numblocks, len, scanlen;
- int startblock;
- loff_t from;
- size_t readlen, ooblen;
-
- printk (KERN_INFO "Scanning device for bad blocks\n");
-
- if (bd->options & NAND_BBT_SCANALLPAGES)
- len = 1 << (this->bbt_erase_shift - this->page_shift);
- else {
- if (bd->options & NAND_BBT_SCAN2NDPAGE)
- len = 2;
- else
- len = 1;
- }
- scanlen = mtd->oobblock + mtd->oobsize;
- readlen = len * mtd->oobblock;
- ooblen = len * mtd->oobsize;
-
- if (chip == -1) {
- /* Note that numblocks is 2 * (real numblocks) here, see i+=2 below as it
- * makes shifting and masking less painful */
- numblocks = mtd->size >> (this->bbt_erase_shift - 1);
- startblock = 0;
- from = 0;
- } else {
- if (chip >= this->numchips) {
- printk (KERN_WARNING "create_bbt(): chipnr (%d) > available chips (%d)\n",
- chip + 1, this->numchips);
- return;
- }
- numblocks = this->chipsize >> (this->bbt_erase_shift - 1);
- startblock = chip * numblocks;
- numblocks += startblock;
- from = startblock << (this->bbt_erase_shift - 1);
- }
-
- for (i = startblock; i < numblocks;) {
- nand_read_raw (mtd, buf, from, readlen, ooblen);
- for (j = 0; j < len; j++) {
- if (check_pattern (&buf[j * scanlen], scanlen, mtd->oobblock, bd)) {
- this->bbt[i >> 3] |= 0x03 << (i & 0x6);
- printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n",
- i >> 1, (unsigned int) from);
- break;
- }
- }
- i += 2;
- from += (1 << this->bbt_erase_shift);
- }
-}
-
-/**
- * search_bbt - [GENERIC] scan the device for a specific bad block table
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @td: descriptor for the bad block table
- *
- * Read the bad block table by searching for a given ident pattern.
- * Search is preformed either from the beginning up or from the end of
- * the device downwards. The search starts always at the start of a
- * block.
- * If the option NAND_BBT_PERCHIP is given, each chip is searched
- * for a bbt, which contains the bad block information of this chip.
- * This is neccecary to provide support for certain DOC devices.
- *
- * The bbt ident pattern resides in the oob area of the first page
- * in a block.
- */
-static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
-{
- struct nand_chip *this = mtd->priv;
- int i, chips;
- int bits, startblock, block, dir;
- int scanlen = mtd->oobblock + mtd->oobsize;
- int bbtblocks;
-
- /* Search direction top -> down ? */
- if (td->options & NAND_BBT_LASTBLOCK) {
- startblock = (mtd->size >> this->bbt_erase_shift) -1;
- dir = -1;
- } else {
- startblock = 0;
- dir = 1;
- }
-
- /* Do we have a bbt per chip ? */
- if (td->options & NAND_BBT_PERCHIP) {
- chips = this->numchips;
- bbtblocks = this->chipsize >> this->bbt_erase_shift;
- startblock &= bbtblocks - 1;
- } else {
- chips = 1;
- bbtblocks = mtd->size >> this->bbt_erase_shift;
- }
-
- /* Number of bits for each erase block in the bbt */
- bits = td->options & NAND_BBT_NRBITS_MSK;
-
- for (i = 0; i < chips; i++) {
- /* Reset version information */
- td->version[i] = 0;
- td->pages[i] = -1;
- /* Scan the maximum number of blocks */
- for (block = 0; block < td->maxblocks; block++) {
- int actblock = startblock + dir * block;
- /* Read first page */
- nand_read_raw (mtd, buf, actblock << this->bbt_erase_shift, mtd->oobblock, mtd->oobsize);
- if (!check_pattern(buf, scanlen, mtd->oobblock, td)) {
- td->pages[i] = actblock << (this->bbt_erase_shift - this->page_shift);
- if (td->options & NAND_BBT_VERSION) {
- td->version[i] = buf[mtd->oobblock + td->veroffs];
- }
- break;
- }
- }
- startblock += this->chipsize >> this->bbt_erase_shift;
- }
- /* Check, if we found a bbt for each requested chip */
- for (i = 0; i < chips; i++) {
- if (td->pages[i] == -1)
- printk (KERN_WARNING "Bad block table not found for chip %d\n", i);
- else
- printk (KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i], td->version[i]);
- }
- return 0;
-}
-
-/**
- * search_read_bbts - [GENERIC] scan the device for bad block table(s)
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @td: descriptor for the bad block table
- * @md: descriptor for the bad block table mirror
- *
- * Search and read the bad block table(s)
-*/
-static int search_read_bbts (struct mtd_info *mtd, uint8_t *buf,
- struct nand_bbt_descr *td, struct nand_bbt_descr *md)
-{
- /* Search the primary table */
- search_bbt (mtd, buf, td);
-
- /* Search the mirror table */
- if (md)
- search_bbt (mtd, buf, md);
-
- /* Force result check */
- return 1;
-}
-
-
-/**
- * write_bbt - [GENERIC] (Re)write the bad block table
- *
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @td: descriptor for the bad block table
- * @md: descriptor for the bad block table mirror
- * @chipsel: selector for a specific chip, -1 for all
- *
- * (Re)write the bad block table
- *
-*/
-static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
- struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel)
-{
- struct nand_chip *this = mtd->priv;
- struct nand_oobinfo oobinfo;
- struct erase_info einfo;
- int i, j, res, chip = 0;
- int bits, startblock, dir, page, offs, numblocks, sft, sftmsk;
- int nrchips, bbtoffs, pageoffs;
- uint8_t msk[4];
- uint8_t rcode = td->reserved_block_code;
- size_t retlen, len = 0;
- loff_t to;
-
- if (!rcode)
- rcode = 0xff;
- /* Write bad block table per chip rather than per device ? */
- if (td->options & NAND_BBT_PERCHIP) {
- numblocks = (int) (this->chipsize >> this->bbt_erase_shift);
- /* Full device write or specific chip ? */
- if (chipsel == -1) {
- nrchips = this->numchips;
- } else {
- nrchips = chipsel + 1;
- chip = chipsel;
- }
- } else {
- numblocks = (int) (mtd->size >> this->bbt_erase_shift);
- nrchips = 1;
- }
-
- /* Loop through the chips */
- for (; chip < nrchips; chip++) {
-
- /* There was already a version of the table, reuse the page
- * This applies for absolute placement too, as we have the
- * page nr. in td->pages.
- */
- if (td->pages[chip] != -1) {
- page = td->pages[chip];
- goto write;
- }
-
- /* Automatic placement of the bad block table */
- /* Search direction top -> down ? */
- if (td->options & NAND_BBT_LASTBLOCK) {
- startblock = numblocks * (chip + 1) - 1;
- dir = -1;
- } else {
- startblock = chip * numblocks;
- dir = 1;
- }
-
- for (i = 0; i < td->maxblocks; i++) {
- int block = startblock + dir * i;
- /* Check, if the block is bad */
- switch ((this->bbt[block >> 2] >> (2 * (block & 0x03))) & 0x03) {
- case 0x01:
- case 0x03:
- continue;
- }
- page = block << (this->bbt_erase_shift - this->page_shift);
- /* Check, if the block is used by the mirror table */
- if (!md || md->pages[chip] != page)
- goto write;
- }
- printk (KERN_ERR "No space left to write bad block table\n");
- return -ENOSPC;
-write:
-
- /* Set up shift count and masks for the flash table */
- bits = td->options & NAND_BBT_NRBITS_MSK;
- switch (bits) {
- case 1: sft = 3; sftmsk = 0x07; msk[0] = 0x00; msk[1] = 0x01; msk[2] = ~rcode; msk[3] = 0x01; break;
- case 2: sft = 2; sftmsk = 0x06; msk[0] = 0x00; msk[1] = 0x01; msk[2] = ~rcode; msk[3] = 0x03; break;
- case 4: sft = 1; sftmsk = 0x04; msk[0] = 0x00; msk[1] = 0x0C; msk[2] = ~rcode; msk[3] = 0x0f; break;
- case 8: sft = 0; sftmsk = 0x00; msk[0] = 0x00; msk[1] = 0x0F; msk[2] = ~rcode; msk[3] = 0xff; break;
- default: return -EINVAL;
- }
-
- bbtoffs = chip * (numblocks >> 2);
-
- to = ((loff_t) page) << this->page_shift;
-
- memcpy (&oobinfo, this->autooob, sizeof(oobinfo));
- oobinfo.useecc = MTD_NANDECC_PLACEONLY;
-
- /* Must we save the block contents ? */
- if (td->options & NAND_BBT_SAVECONTENT) {
- /* Make it block aligned */
- to &= ~((loff_t) ((1 << this->bbt_erase_shift) - 1));
- len = 1 << this->bbt_erase_shift;
- res = mtd->read_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo);
- if (res < 0) {
- if (retlen != len) {
- printk (KERN_INFO "nand_bbt: Error reading block for writing the bad block table\n");
- return res;
- }
- printk (KERN_WARNING "nand_bbt: ECC error while reading block for writing bad block table\n");
- }
- /* Calc the byte offset in the buffer */
- pageoffs = page - (int)(to >> this->page_shift);
- offs = pageoffs << this->page_shift;
- /* Preset the bbt area with 0xff */
- memset (&buf[offs], 0xff, (size_t)(numblocks >> sft));
- /* Preset the bbt's oob area with 0xff */
- memset (&buf[len + pageoffs * mtd->oobsize], 0xff,
- ((len >> this->page_shift) - pageoffs) * mtd->oobsize);
- if (td->options & NAND_BBT_VERSION) {
- buf[len + (pageoffs * mtd->oobsize) + td->veroffs] = td->version[chip];
- }
- } else {
- /* Calc length */
- len = (size_t) (numblocks >> sft);
- /* Make it page aligned ! */
- len = (len + (mtd->oobblock-1)) & ~(mtd->oobblock-1);
- /* Preset the buffer with 0xff */
- memset (buf, 0xff, len + (len >> this->page_shift) * mtd->oobsize);
- offs = 0;
- /* Pattern is located in oob area of first page */
- memcpy (&buf[len + td->offs], td->pattern, td->len);
- if (td->options & NAND_BBT_VERSION) {
- buf[len + td->veroffs] = td->version[chip];
- }
- }
-
- /* walk through the memory table */
- for (i = 0; i < numblocks; ) {
- uint8_t dat;
- dat = this->bbt[bbtoffs + (i >> 2)];
- for (j = 0; j < 4; j++ , i++) {
- int sftcnt = (i << (3 - sft)) & sftmsk;
- /* Do not store the reserved bbt blocks ! */
- buf[offs + (i >> sft)] &= ~(msk[dat & 0x03] << sftcnt);
- dat >>= 2;
- }
- }
-
- memset (&einfo, 0, sizeof (einfo));
- einfo.mtd = mtd;
- einfo.addr = (unsigned long) to;
- einfo.len = 1 << this->bbt_erase_shift;
- res = nand_erase_nand (mtd, &einfo, 1);
- if (res < 0) {
- printk (KERN_WARNING "nand_bbt: Error during block erase: %d\n", res);
- return res;
- }
-
- res = mtd->write_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo);
- if (res < 0) {
- printk (KERN_WARNING "nand_bbt: Error while writing bad block table %d\n", res);
- return res;
- }
- printk (KERN_DEBUG "Bad block table written to 0x%08x, version 0x%02X\n",
- (unsigned int) to, td->version[chip]);
-
- /* Mark it as used */
- td->pages[chip] = page;
- }
- return 0;
-}
-
-/**
- * nand_memory_bbt - [GENERIC] create a memory based bad block table
- * @mtd: MTD device structure
- * @bd: descriptor for the good/bad block search pattern
- *
- * The function creates a memory based bbt by scanning the device
- * for manufacturer / software marked good / bad blocks
-*/
-static int nand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
-{
- struct nand_chip *this = mtd->priv;
-
- /* Ensure that we only scan for the pattern and nothing else */
- bd->options = 0;
- create_bbt (mtd, this->data_buf, bd, -1);
- return 0;
-}
-
-/**
- * check_create - [GENERIC] create and write bbt(s) if neccecary
- * @mtd: MTD device structure
- * @buf: temporary buffer
- * @bd: descriptor for the good/bad block search pattern
- *
- * The function checks the results of the previous call to read_bbt
- * and creates / updates the bbt(s) if neccecary
- * Creation is neccecary if no bbt was found for the chip/device
- * Update is neccecary if one of the tables is missing or the
- * version nr. of one table is less than the other
-*/
-static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
-{
- int i, chips, writeops, chipsel, res;
- struct nand_chip *this = mtd->priv;
- struct nand_bbt_descr *td = this->bbt_td;
- struct nand_bbt_descr *md = this->bbt_md;
- struct nand_bbt_descr *rd, *rd2;
-
- /* Do we have a bbt per chip ? */
- if (td->options & NAND_BBT_PERCHIP)
- chips = this->numchips;
- else
- chips = 1;
-
- for (i = 0; i < chips; i++) {
- writeops = 0;
- rd = NULL;
- rd2 = NULL;
- /* Per chip or per device ? */
- chipsel = (td->options & NAND_BBT_PERCHIP) ? i : -1;
- /* Mirrored table avilable ? */
- if (md) {
- if (td->pages[i] == -1 && md->pages[i] == -1) {
- writeops = 0x03;
- goto create;
- }
-
- if (td->pages[i] == -1) {
- rd = md;
- td->version[i] = md->version[i];
- writeops = 1;
- goto writecheck;
- }
-
- if (md->pages[i] == -1) {
- rd = td;
- md->version[i] = td->version[i];
- writeops = 2;
- goto writecheck;
- }
-
- if (td->version[i] == md->version[i]) {
- rd = td;
- if (!(td->options & NAND_BBT_VERSION))
- rd2 = md;
- goto writecheck;
- }
-
- if (((int8_t) (td->version[i] - md->version[i])) > 0) {
- rd = td;
- md->version[i] = td->version[i];
- writeops = 2;
- } else {
- rd = md;
- td->version[i] = md->version[i];
- writeops = 1;
- }
-
- goto writecheck;
-
- } else {
- if (td->pages[i] == -1) {
- writeops = 0x01;
- goto create;
- }
- rd = td;
- goto writecheck;
- }
-create:
- /* Create the bad block table by scanning the device ? */
- if (!(td->options & NAND_BBT_CREATE))
- continue;
-
- /* Create the table in memory by scanning the chip(s) */
- create_bbt (mtd, buf, bd, chipsel);
-
- td->version[i] = 1;
- if (md)
- md->version[i] = 1;
-writecheck:
- /* read back first ? */
- if (rd)
- read_abs_bbt (mtd, buf, rd, chipsel);
- /* If they weren't versioned, read both. */
- if (rd2)
- read_abs_bbt (mtd, buf, rd2, chipsel);
-
- /* Write the bad block table to the device ? */
- if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
- res = write_bbt (mtd, buf, td, md, chipsel);
- if (res < 0)
- return res;
- }
-
- /* Write the mirror bad block table to the device ? */
- if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
- res = write_bbt (mtd, buf, md, td, chipsel);
- if (res < 0)
- return res;
- }
- }
- return 0;
-}
-
-/**
- * mark_bbt_regions - [GENERIC] mark the bad block table regions
- * @mtd: MTD device structure
- * @td: bad block table descriptor
- *
- * The bad block table regions are marked as "bad" to prevent
- * accidental erasures / writes. The regions are identified by
- * the mark 0x02.
-*/
-static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
-{
- struct nand_chip *this = mtd->priv;
- int i, j, chips, block, nrblocks, update;
- uint8_t oldval, newval;
-
- /* Do we have a bbt per chip ? */
- if (td->options & NAND_BBT_PERCHIP) {
- chips = this->numchips;
- nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);
- } else {
- chips = 1;
- nrblocks = (int)(mtd->size >> this->bbt_erase_shift);
- }
-
- for (i = 0; i < chips; i++) {
- if ((td->options & NAND_BBT_ABSPAGE) ||
- !(td->options & NAND_BBT_WRITE)) {
- if (td->pages[i] == -1) continue;
- block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
- block <<= 1;
- oldval = this->bbt[(block >> 3)];
- newval = oldval | (0x2 << (block & 0x06));
- this->bbt[(block >> 3)] = newval;
- if ((oldval != newval) && td->reserved_block_code)
- nand_update_bbt(mtd, block << (this->bbt_erase_shift - 1));
- continue;
- }
- update = 0;
- if (td->options & NAND_BBT_LASTBLOCK)
- block = ((i + 1) * nrblocks) - td->maxblocks;
- else
- block = i * nrblocks;
- block <<= 1;
- for (j = 0; j < td->maxblocks; j++) {
- oldval = this->bbt[(block >> 3)];
- newval = oldval | (0x2 << (block & 0x06));
- this->bbt[(block >> 3)] = newval;
- if (oldval != newval) update = 1;
- block += 2;
- }
- /* If we want reserved blocks to be recorded to flash, and some
- new ones have been marked, then we need to update the stored
- bbts. This should only happen once. */
- if (update && td->reserved_block_code)
- nand_update_bbt(mtd, (block - 2) << (this->bbt_erase_shift - 1));
- }
-}
-
-/**
- * nand_scan_bbt - [NAND Interface] scan, find, read and maybe create bad block table(s)
- * @mtd: MTD device structure
- * @bd: descriptor for the good/bad block search pattern
- *
- * The function checks, if a bad block table(s) is/are already
- * available. If not it scans the device for manufacturer
- * marked good / bad blocks and writes the bad block table(s) to
- * the selected place.
- *
- * The bad block table memory is allocated here. It must be freed
- * by calling the nand_free_bbt function.
- *
-*/
-int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
-{
- struct nand_chip *this = mtd->priv;
- int len, res = 0;
- uint8_t *buf;
- struct nand_bbt_descr *td = this->bbt_td;
- struct nand_bbt_descr *md = this->bbt_md;
-
- len = mtd->size >> (this->bbt_erase_shift + 2);
- /* Allocate memory (2bit per block) */
- this->bbt = (uint8_t *) kmalloc (len, GFP_KERNEL);
- if (!this->bbt) {
- printk (KERN_ERR "nand_scan_bbt: Out of memory\n");
- return -ENOMEM;
- }
- /* Clear the memory bad block table */
- memset (this->bbt, 0x00, len);
-
- /* If no primary table decriptor is given, scan the device
- * to build a memory based bad block table
- */
- if (!td)
- return nand_memory_bbt(mtd, bd);
-
- /* Allocate a temporary buffer for one eraseblock incl. oob */
- len = (1 << this->bbt_erase_shift);
- len += (len >> this->page_shift) * mtd->oobsize;
- buf = kmalloc (len, GFP_KERNEL);
- if (!buf) {
- printk (KERN_ERR "nand_bbt: Out of memory\n");
- kfree (this->bbt);
- this->bbt = NULL;
- return -ENOMEM;
- }
-
- /* Is the bbt at a given page ? */
- if (td->options & NAND_BBT_ABSPAGE) {
- res = read_abs_bbts (mtd, buf, td, md);
- } else {
- /* Search the bad block table using a pattern in oob */
- res = search_read_bbts (mtd, buf, td, md);
- }
-
- if (res)
- res = check_create (mtd, buf, bd);
-
- /* Prevent the bbt regions from erasing / writing */
- mark_bbt_region (mtd, td);
- if (md)
- mark_bbt_region (mtd, md);
-
- kfree (buf);
- return res;
-}
-
-
-/**
- * nand_update_bbt - [NAND Interface] update bad block table(s)
- * @mtd: MTD device structure
- * @offs: the offset of the newly marked block
- *
- * The function updates the bad block table(s)
-*/
-int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
-{
- struct nand_chip *this = mtd->priv;
- int len, res = 0, writeops = 0;
- int chip, chipsel;
- uint8_t *buf;
- struct nand_bbt_descr *td = this->bbt_td;
- struct nand_bbt_descr *md = this->bbt_md;
-
- if (!this->bbt || !td)
- return -EINVAL;
-
- len = mtd->size >> (this->bbt_erase_shift + 2);
- /* Allocate a temporary buffer for one eraseblock incl. oob */
- len = (1 << this->bbt_erase_shift);
- len += (len >> this->page_shift) * mtd->oobsize;
- buf = kmalloc (len, GFP_KERNEL);
- if (!buf) {
- printk (KERN_ERR "nand_update_bbt: Out of memory\n");
- return -ENOMEM;
- }
-
- writeops = md != NULL ? 0x03 : 0x01;
-
- /* Do we have a bbt per chip ? */
- if (td->options & NAND_BBT_PERCHIP) {
- chip = (int) (offs >> this->chip_shift);
- chipsel = chip;
- } else {
- chip = 0;
- chipsel = -1;
- }
-
- td->version[chip]++;
- if (md)
- md->version[chip]++;
-
- /* Write the bad block table to the device ? */
- if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
- res = write_bbt (mtd, buf, td, md, chipsel);
- if (res < 0)
- goto out;
- }
- /* Write the mirror bad block table to the device ? */
- if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
- res = write_bbt (mtd, buf, md, td, chipsel);
- }
-
-out:
- kfree (buf);
- return res;
-}
-
-/* Define some generic bad / good block scan pattern which are used
- * while scanning a device for factory marked good / bad blocks
- *
- * The memory based patterns just
- */
-static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
-
-static struct nand_bbt_descr smallpage_memorybased = {
- .options = 0,
- .offs = 5,
- .len = 1,
- .pattern = scan_ff_pattern
-};
-
-static struct nand_bbt_descr largepage_memorybased = {
- .options = 0,
- .offs = 0,
- .len = 2,
- .pattern = scan_ff_pattern
-};
-
-static struct nand_bbt_descr smallpage_flashbased = {
- .options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
- .offs = 5,
- .len = 1,
- .pattern = scan_ff_pattern
-};
-
-static struct nand_bbt_descr largepage_flashbased = {
- .options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
- .offs = 0,
- .len = 2,
- .pattern = scan_ff_pattern
-};
-
-static uint8_t scan_agand_pattern[] = { 0x1C, 0x71, 0xC7, 0x1C, 0x71, 0xC7 };
-
-static struct nand_bbt_descr agand_flashbased = {
- .options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
- .offs = 0x20,
- .len = 6,
- .pattern = scan_agand_pattern
-};
-
-/* Generic flash bbt decriptors
-*/
-static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };
-static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };
-
-static struct nand_bbt_descr bbt_main_descr = {
- .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
- | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
- .offs = 8,
- .len = 4,
- .veroffs = 12,
- .maxblocks = 4,
- .pattern = bbt_pattern
-};
-
-static struct nand_bbt_descr bbt_mirror_descr = {
- .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
- | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
- .offs = 8,
- .len = 4,
- .veroffs = 12,
- .maxblocks = 4,
- .pattern = mirror_pattern
-};
-
-/**
- * nand_default_bbt - [NAND Interface] Select a default bad block table for the device
- * @mtd: MTD device structure
- *
- * This function selects the default bad block table
- * support for the device and calls the nand_scan_bbt function
- *
-*/
-int nand_default_bbt (struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
-
- /* Default for AG-AND. We must use a flash based
- * bad block table as the devices have factory marked
- * _good_ blocks. Erasing those blocks leads to loss
- * of the good / bad information, so we _must_ store
- * this information in a good / bad table during
- * startup
- */
- if (this->options & NAND_IS_AND) {
- /* Use the default pattern descriptors */
- if (!this->bbt_td) {
- this->bbt_td = &bbt_main_descr;
- this->bbt_md = &bbt_mirror_descr;
- }
- this->options |= NAND_USE_FLASH_BBT;
- return nand_scan_bbt (mtd, &agand_flashbased);
- }
-
- /* Is a flash based bad block table requested ? */
- if (this->options & NAND_USE_FLASH_BBT) {
- /* Use the default pattern descriptors */
- if (!this->bbt_td) {
- this->bbt_td = &bbt_main_descr;
- this->bbt_md = &bbt_mirror_descr;
- }
- if (mtd->oobblock > 512)
- return nand_scan_bbt (mtd, &largepage_flashbased);
- else
- return nand_scan_bbt (mtd, &smallpage_flashbased);
- } else {
- this->bbt_td = NULL;
- this->bbt_md = NULL;
- if (mtd->oobblock > 512)
- return nand_scan_bbt (mtd, &largepage_memorybased);
- else
- return nand_scan_bbt (mtd, &smallpage_memorybased);
- }
-}
-
-/**
- * nand_isbad_bbt - [NAND Interface] Check if a block is bad
- * @mtd: MTD device structure
- * @offs: offset in the device
- * @allowbbt: allow access to bad block table region
- *
-*/
-int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt)
-{
- struct nand_chip *this = mtd->priv;
- int block;
- uint8_t res;
-
- /* Get block number * 2 */
- block = (int) (offs >> (this->bbt_erase_shift - 1));
- res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
-
- DEBUG (MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n",
- (unsigned int)offs, res, block >> 1);
-
- switch ((int)res) {
- case 0x00: return 0;
- case 0x01: return 1;
- case 0x02: return allowbbt ? 0 : 1;
- }
- return 1;
-}
-
-EXPORT_SYMBOL (nand_scan_bbt);
-EXPORT_SYMBOL (nand_default_bbt);
+++ /dev/null
-/*
- * drivers/mtd/nand/ppchameleonevb.c
- *
- * Copyright (C) 2003 DAVE Srl (info@wawnet.biz)
- *
- * Derived from drivers/mtd/nand/edb7312.c
- *
- *
- * $Id: ppchameleonevb.c,v 1.2 2004/05/05 22:09:54 gleixner Exp $
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Overview:
- * This is a device driver for the NAND flash devices found on the
- * PPChameleon/PPChameleonEVB system.
- * PPChameleon options (autodetected):
- * - BA model: no NAND
- * - ME model: 32MB (Samsung K9F5608U0B)
- * - HI model: 128MB (Samsung K9F1G08UOM)
- * PPChameleonEVB options:
- * - 32MB (Samsung K9F5608U0B)
- */
-
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-#include <platforms/PPChameleonEVB.h>
-
-#undef USE_READY_BUSY_PIN
-#define USE_READY_BUSY_PIN
-/* see datasheets (tR) */
-#define NAND_BIG_DELAY_US 25
-#define NAND_SMALL_DELAY_US 10
-
-/* handy sizes */
-#define SZ_4M 0x00400000
-#define NAND_SMALL_SIZE 0x02000000
-#define NAND_MTD_NAME "ppchameleon-nand"
-#define NAND_EVB_MTD_NAME "ppchameleonevb-nand"
-
-/* GPIO pins used to drive NAND chip mounted on processor module */
-#define NAND_nCE_GPIO_PIN (0x80000000 >> 1)
-#define NAND_CLE_GPIO_PIN (0x80000000 >> 2)
-#define NAND_ALE_GPIO_PIN (0x80000000 >> 3)
-#define NAND_RB_GPIO_PIN (0x80000000 >> 4)
-/* GPIO pins used to drive NAND chip mounted on EVB */
-#define NAND_EVB_nCE_GPIO_PIN (0x80000000 >> 14)
-#define NAND_EVB_CLE_GPIO_PIN (0x80000000 >> 15)
-#define NAND_EVB_ALE_GPIO_PIN (0x80000000 >> 16)
-#define NAND_EVB_RB_GPIO_PIN (0x80000000 >> 31)
-
-/*
- * MTD structure for PPChameleonEVB board
- */
-static struct mtd_info *ppchameleon_mtd = NULL;
-static struct mtd_info *ppchameleonevb_mtd = NULL;
-
-/*
- * Module stuff
- */
-static int ppchameleon_fio_pbase = CFG_NAND0_PADDR;
-static int ppchameleonevb_fio_pbase = CFG_NAND1_PADDR;
-
-#ifdef MODULE
-MODULE_PARM(ppchameleon_fio_pbase, "i");
-__setup("ppchameleon_fio_pbase=",ppchameleon_fio_pbase);
-MODULE_PARM(ppchameleonevb_fio_pbase, "i");
-__setup("ppchameleonevb_fio_pbase=",ppchameleonevb_fio_pbase);
-#endif
-
-/* Internal buffers. Page buffer and oob buffer for one block */
-static u_char data_buf[2048 + 64];
-static u_char oob_buf[64 * 64];
-static u_char data_buf_evb[512 + 16];
-static u_char oob_buf_evb[16 * 32];
-
-#ifdef CONFIG_MTD_PARTITIONS
-/*
- * Define static partitions for flash devices
- */
-static struct mtd_partition partition_info_hi[] = {
- { name: "PPChameleon HI Nand Flash",
- offset: 0,
- size: 128*1024*1024 }
-};
-
-static struct mtd_partition partition_info_me[] = {
- { name: "PPChameleon ME Nand Flash",
- offset: 0,
- size: 32*1024*1024 }
-};
-
-static struct mtd_partition partition_info_evb[] = {
- { name: "PPChameleonEVB Nand Flash",
- offset: 0,
- size: 32*1024*1024 }
-};
-
-#define NUM_PARTITIONS 1
-
-extern int parse_cmdline_partitions(struct mtd_info *master,
- struct mtd_partition **pparts,
- const char *mtd_id);
-#endif
-
-
-/*
- * hardware specific access to control-lines
- */
-static void ppchameleon_hwcontrol(struct mtd_info *mtdinfo, int cmd)
-{
- switch(cmd) {
-
- case NAND_CTL_SETCLE:
- MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND0_PADDR);
- break;
- case NAND_CTL_CLRCLE:
- MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND0_PADDR);
- break;
- case NAND_CTL_SETALE:
- MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND0_PADDR);
- break;
- case NAND_CTL_CLRALE:
- MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND0_PADDR);
- break;
- case NAND_CTL_SETNCE:
- MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND0_PADDR);
- break;
- case NAND_CTL_CLRNCE:
- MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND0_PADDR);
- break;
- }
-}
-
-static void ppchameleonevb_hwcontrol(struct mtd_info *mtdinfo, int cmd)
-{
- switch(cmd) {
-
- case NAND_CTL_SETCLE:
- MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND1_PADDR);
- break;
- case NAND_CTL_CLRCLE:
- MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND1_PADDR);
- break;
- case NAND_CTL_SETALE:
- MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND1_PADDR);
- break;
- case NAND_CTL_CLRALE:
- MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND1_PADDR);
- break;
- case NAND_CTL_SETNCE:
- MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND1_PADDR);
- break;
- case NAND_CTL_CLRNCE:
- MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND1_PADDR);
- break;
- }
-}
-
-#ifdef USE_READY_BUSY_PIN
-/*
- * read device ready pin
- */
-static int ppchameleon_device_ready(struct mtd_info *minfo)
-{
- if (in_be32((volatile unsigned*)GPIO0_IR) & NAND_RB_GPIO_PIN)
- return 1;
- return 0;
-}
-
-static int ppchameleonevb_device_ready(struct mtd_info *minfo)
-{
- if (in_be32((volatile unsigned*)GPIO0_IR) & NAND_EVB_RB_GPIO_PIN)
- return 1;
- return 0;
-}
-#endif
-
-#ifdef CONFIG_MTD_PARTITIONS
-const char *part_probes[] = { "cmdlinepart", NULL };
-const char *part_probes_evb[] = { "cmdlinepart", NULL };
-#endif
-
-/*
- * Main initialization routine
- */
-static int __init ppchameleonevb_init (void)
-{
- struct nand_chip *this;
- const char *part_type = 0;
- int mtd_parts_nb = 0;
- struct mtd_partition *mtd_parts = 0;
- int ppchameleon_fio_base;
- int ppchameleonevb_fio_base;
-
-
- /*********************************
- * Processor module NAND (if any) *
- *********************************/
- /* Allocate memory for MTD device structure and private data */
- ppchameleon_mtd = kmalloc(sizeof(struct mtd_info) +
- sizeof(struct nand_chip),
- GFP_KERNEL);
- if (!ppchameleon_mtd) {
- printk("Unable to allocate PPChameleon NAND MTD device structure.\n");
- return -ENOMEM;
- }
-
- /* map physical address */
- ppchameleon_fio_base = (unsigned long)ioremap(ppchameleon_fio_pbase, SZ_4M);
- if(!ppchameleon_fio_base) {
- printk("ioremap PPChameleon NAND flash failed\n");
- kfree(ppchameleon_mtd);
- return -EIO;
- }
-
- /* Get pointer to private data */
- this = (struct nand_chip *) (&ppchameleon_mtd[1]);
-
- /* Initialize structures */
- memset((char *) ppchameleon_mtd, 0, sizeof(struct mtd_info));
- memset((char *) this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- ppchameleon_mtd->priv = this;
-
- /* Initialize GPIOs */
- /* Pin mapping for NAND chip */
- /*
- CE GPIO_01
- CLE GPIO_02
- ALE GPIO_03
- R/B GPIO_04
- */
- /* output select */
- out_be32((volatile unsigned*)GPIO0_OSRH, in_be32((volatile unsigned*)GPIO0_OSRH) & 0xC0FFFFFF);
- /* three-state select */
- out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xC0FFFFFF);
- /* enable output driver */
- out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) | NAND_nCE_GPIO_PIN | NAND_CLE_GPIO_PIN | NAND_ALE_GPIO_PIN);
-#ifdef USE_READY_BUSY_PIN
- /* three-state select */
- out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xFF3FFFFF);
- /* high-impedecence */
- out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) & (~NAND_RB_GPIO_PIN));
- /* input select */
- out_be32((volatile unsigned*)GPIO0_ISR1H, (in_be32((volatile unsigned*)GPIO0_ISR1H) & 0xFF3FFFFF) | 0x00400000);
-#endif
-
- /* insert callbacks */
- this->IO_ADDR_R = ppchameleon_fio_base;
- this->IO_ADDR_W = ppchameleon_fio_base;
- this->hwcontrol = ppchameleon_hwcontrol;
-#ifdef USE_READY_BUSY_PIN
- this->dev_ready = ppchameleon_device_ready;
-#endif
- this->chip_delay = NAND_BIG_DELAY_US;
- /* ECC mode */
- this->eccmode = NAND_ECC_SOFT;
-
- /* Set internal data buffer */
- this->data_buf = data_buf;
- this->oob_buf = oob_buf;
-
- /* Scan to find existence of the device (it could not be mounted) */
- if (nand_scan (ppchameleon_mtd, 1)) {
- iounmap((void *)ppchameleon_fio_base);
- kfree (ppchameleon_mtd);
- goto nand_evb_init;
- }
-
-#ifndef USE_READY_BUSY_PIN
- /* Adjust delay if necessary */
- if (ppchameleon_mtd->size == NAND_SMALL_SIZE)
- this->chip_delay = NAND_SMALL_DELAY_US;
-#endif
-
-#ifdef CONFIG_MTD_PARTITIONS
- ppchameleon_mtd->name = "ppchameleon-nand";
- mtd_parts_nb = parse_mtd_partitions(ppchameleon_mtd, part_probes, &mtd_parts, 0);
- if (mtd_parts_nb > 0)
- part_type = "command line";
- else
- mtd_parts_nb = 0;
-#endif
- if (mtd_parts_nb == 0)
- {
- if (ppchameleon_mtd->size == NAND_SMALL_SIZE)
- mtd_parts = partition_info_me;
- else
- mtd_parts = partition_info_hi;
- mtd_parts_nb = NUM_PARTITIONS;
- part_type = "static";
- }
-
- /* Register the partitions */
- printk(KERN_NOTICE "Using %s partition definition\n", part_type);
- add_mtd_partitions(ppchameleon_mtd, mtd_parts, mtd_parts_nb);
-
-nand_evb_init:
- /****************************
- * EVB NAND (always present) *
- ****************************/
- /* Allocate memory for MTD device structure and private data */
- ppchameleonevb_mtd = kmalloc(sizeof(struct mtd_info) +
- sizeof(struct nand_chip),
- GFP_KERNEL);
- if (!ppchameleonevb_mtd) {
- printk("Unable to allocate PPChameleonEVB NAND MTD device structure.\n");
- return -ENOMEM;
- }
-
- /* map physical address */
- ppchameleonevb_fio_base = (unsigned long)ioremap(ppchameleonevb_fio_pbase, SZ_4M);
- if(!ppchameleonevb_fio_base) {
- printk("ioremap PPChameleonEVB NAND flash failed\n");
- kfree(ppchameleonevb_mtd);
- return -EIO;
- }
-
- /* Get pointer to private data */
- this = (struct nand_chip *) (&ppchameleonevb_mtd[1]);
-
- /* Initialize structures */
- memset((char *) ppchameleonevb_mtd, 0, sizeof(struct mtd_info));
- memset((char *) this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- ppchameleonevb_mtd->priv = this;
-
- /* Initialize GPIOs */
- /* Pin mapping for NAND chip */
- /*
- CE GPIO_14
- CLE GPIO_15
- ALE GPIO_16
- R/B GPIO_31
- */
- /* output select */
- out_be32((volatile unsigned*)GPIO0_OSRH, in_be32((volatile unsigned*)GPIO0_OSRH) & 0xFFFFFFF0);
- out_be32((volatile unsigned*)GPIO0_OSRL, in_be32((volatile unsigned*)GPIO0_OSRL) & 0x3FFFFFFF);
- /* three-state select */
- out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xFFFFFFF0);
- out_be32((volatile unsigned*)GPIO0_TSRL, in_be32((volatile unsigned*)GPIO0_TSRL) & 0x3FFFFFFF);
- /* enable output driver */
- out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) | NAND_EVB_nCE_GPIO_PIN | NAND_EVB_CLE_GPIO_PIN | NAND_EVB_ALE_GPIO_PIN);
-#ifdef USE_READY_BUSY_PIN
- /* three-state select */
- out_be32((volatile unsigned*)GPIO0_TSRL, in_be32((volatile unsigned*)GPIO0_TSRL) & 0xFFFFFFFC);
- /* high-impedecence */
- out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) & (~NAND_EVB_RB_GPIO_PIN));
- /* input select */
- out_be32((volatile unsigned*)GPIO0_ISR1L, (in_be32((volatile unsigned*)GPIO0_ISR1L) & 0xFFFFFFFC) | 0x00000001);
-#endif
-
-
- /* insert callbacks */
- this->IO_ADDR_R = ppchameleonevb_fio_base;
- this->IO_ADDR_W = ppchameleonevb_fio_base;
- this->hwcontrol = ppchameleonevb_hwcontrol;
-#ifdef USE_READY_BUSY_PIN
- this->dev_ready = ppchameleonevb_device_ready;
-#endif
- this->chip_delay = NAND_SMALL_DELAY_US;
-
- /* ECC mode */
- this->eccmode = NAND_ECC_SOFT;
-
- /* Set internal data buffer */
- this->data_buf = data_buf_evb;
- this->oob_buf = oob_buf_evb;
-
- /* Scan to find existence of the device */
- if (nand_scan (ppchameleonevb_mtd, 1)) {
- iounmap((void *)ppchameleonevb_fio_base);
- kfree (ppchameleonevb_mtd);
- return -ENXIO;
- }
-
-#ifdef CONFIG_MTD_PARTITIONS
- ppchameleonevb_mtd->name = NAND_EVB_MTD_NAME;
- mtd_parts_nb = parse_mtd_partitions(ppchameleonevb_mtd, part_probes_evb, &mtd_parts, 0);
- if (mtd_parts_nb > 0)
- part_type = "command line";
- else
- mtd_parts_nb = 0;
-#endif
- if (mtd_parts_nb == 0)
- {
- mtd_parts = partition_info_evb;
- mtd_parts_nb = NUM_PARTITIONS;
- part_type = "static";
- }
-
- /* Register the partitions */
- printk(KERN_NOTICE "Using %s partition definition\n", part_type);
- add_mtd_partitions(ppchameleonevb_mtd, mtd_parts, mtd_parts_nb);
-
- /* Return happy */
- return 0;
-}
-module_init(ppchameleonevb_init);
-
-/*
- * Clean up routine
- */
-static void __exit ppchameleonevb_cleanup (void)
-{
- struct nand_chip *this = (struct nand_chip *) &ppchameleonevb_mtd[1];
-
- /* Unregister the device */
- del_mtd_device (ppchameleonevb_mtd);
-
- /* Free internal data buffer */
- kfree (this->data_buf);
-
- /* Free the MTD device structure */
- kfree (ppchameleonevb_mtd);
-}
-module_exit(ppchameleonevb_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("DAVE Srl <support-ppchameleon@dave-tech.it>");
-MODULE_DESCRIPTION("MTD map driver for DAVE Srl PPChameleonEVB board");
+++ /dev/null
-/*
- * drivers/mtd/nand/toto.c
- *
- * Copyright (c) 2003 Texas Instruments
- *
- * Derived from drivers/mtd/autcpu12.c
- *
- * Copyright (c) 2002 Thomas Gleixner <tgxl@linutronix.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Overview:
- * This is a device driver for the NAND flash device found on the
- * TI fido board. It supports 32MiB and 64MiB cards
- *
- * $Id: toto.c,v 1.2 2003/10/21 10:04:58 dwmw2 Exp $
- */
-
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-#include <asm/arch/hardware.h>
-#include <asm/sizes.h>
-#include <asm/arch/toto.h>
-#include <asm/arch-omap1510/hardware.h>
-#include <asm/arch/gpio.h>
-
-/*
- * MTD structure for TOTO board
- */
-static struct mtd_info *toto_mtd = NULL;
-
-static int toto_io_base = OMAP_FLASH_1_BASE;
-
-#define CONFIG_NAND_WORKAROUND 1
-
-#define NAND_NCE 0x4000
-#define NAND_CLE 0x1000
-#define NAND_ALE 0x0002
-#define NAND_MASK (NAND_CLE | NAND_ALE | NAND_NCE)
-
-#define T_NAND_CTL_CLRALE(iob) gpiosetout(NAND_ALE, 0)
-#define T_NAND_CTL_SETALE(iob) gpiosetout(NAND_ALE, NAND_ALE)
-#ifdef CONFIG_NAND_WORKAROUND /* "some" dev boards busted, blue wired to rts2 :( */
-#define T_NAND_CTL_CLRCLE(iob) gpiosetout(NAND_CLE, 0); rts2setout(2, 2)
-#define T_NAND_CTL_SETCLE(iob) gpiosetout(NAND_CLE, NAND_CLE); rts2setout(2, 0)
-#else
-#define T_NAND_CTL_CLRCLE(iob) gpiosetout(NAND_CLE, 0)
-#define T_NAND_CTL_SETCLE(iob) gpiosetout(NAND_CLE, NAND_CLE)
-#endif
-#define T_NAND_CTL_SETNCE(iob) gpiosetout(NAND_NCE, 0)
-#define T_NAND_CTL_CLRNCE(iob) gpiosetout(NAND_NCE, NAND_NCE)
-
-/*
- * Define partitions for flash devices
- */
-
-static struct mtd_partition partition_info64M[] = {
- { .name = "toto kernel partition 1",
- .offset = 0,
- .size = 2 * SZ_1M },
- { .name = "toto file sys partition 2",
- .offset = 2 * SZ_1M,
- .size = 14 * SZ_1M },
- { .name = "toto user partition 3",
- .offset = 16 * SZ_1M,
- .size = 16 * SZ_1M },
- { .name = "toto devboard extra partition 4",
- .offset = 32 * SZ_1M,
- .size = 32 * SZ_1M },
-};
-
-static struct mtd_partition partition_info32M[] = {
- { .name = "toto kernel partition 1",
- .offset = 0,
- .size = 2 * SZ_1M },
- { .name = "toto file sys partition 2",
- .offset = 2 * SZ_1M,
- .size = 14 * SZ_1M },
- { .name = "toto user partition 3",
- .offset = 16 * SZ_1M,
- .size = 16 * SZ_1M },
-};
-
-#define NUM_PARTITIONS32M 3
-#define NUM_PARTITIONS64M 4
-/*
- * hardware specific access to control-lines
-*/
-
-static void toto_hwcontrol(struct mtd_info *mtd, int cmd)
-{
-
- udelay(1); /* hopefully enough time for tc make proceding write to clear */
- switch(cmd){
-
- case NAND_CTL_SETCLE: T_NAND_CTL_SETCLE(cmd); break;
- case NAND_CTL_CLRCLE: T_NAND_CTL_CLRCLE(cmd); break;
-
- case NAND_CTL_SETALE: T_NAND_CTL_SETALE(cmd); break;
- case NAND_CTL_CLRALE: T_NAND_CTL_CLRALE(cmd); break;
-
- case NAND_CTL_SETNCE: T_NAND_CTL_SETNCE(cmd); break;
- case NAND_CTL_CLRNCE: T_NAND_CTL_CLRNCE(cmd); break;
- }
- udelay(1); /* allow time to ensure gpio state to over take memory write */
-}
-
-/*
- * Main initialization routine
- */
-int __init toto_init (void)
-{
- struct nand_chip *this;
- int err = 0;
-
- /* Allocate memory for MTD device structure and private data */
- toto_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip),
- GFP_KERNEL);
- if (!toto_mtd) {
- printk (KERN_WARNING "Unable to allocate toto NAND MTD device structure.\n");
- err = -ENOMEM;
- goto out;
- }
-
- /* Get pointer to private data */
- this = (struct nand_chip *) (&toto_mtd[1]);
-
- /* Initialize structures */
- memset((char *) toto_mtd, 0, sizeof(struct mtd_info));
- memset((char *) this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- toto_mtd->priv = this;
-
- /* Set address of NAND IO lines */
- this->IO_ADDR_R = toto_io_base;
- this->IO_ADDR_W = toto_io_base;
- this->hwcontrol = toto_hwcontrol;
- this->dev_ready = NULL;
- /* 25 us command delay time */
- this->chip_delay = 30;
- this->eccmode = NAND_ECC_SOFT;
-
- /* Scan to find existance of the device */
- if (nand_scan (toto_mtd, 1)) {
- err = -ENXIO;
- goto out_mtd;
- }
-
- /* Allocate memory for internal data buffer */
- this->data_buf = kmalloc (sizeof(u_char) * (toto_mtd->oobblock + toto_mtd->oobsize), GFP_KERNEL);
- if (!this->data_buf) {
- printk (KERN_WARNING "Unable to allocate NAND data buffer for toto.\n");
- err = -ENOMEM;
- goto out_mtd;
- }
-
- /* Register the partitions */
- switch(toto_mtd->size){
- case SZ_64M: add_mtd_partitions(toto_mtd, partition_info64M, NUM_PARTITIONS64M); break;
- case SZ_32M: add_mtd_partitions(toto_mtd, partition_info32M, NUM_PARTITIONS32M); break;
- default: {
- printk (KERN_WARNING "Unsupported Nand device\n");
- err = -ENXIO;
- goto out_buf;
- }
- }
-
- gpioreserve(NAND_MASK); /* claim our gpios */
- archflashwp(0,0); /* open up flash for writing */
-
- goto out;
-
-out_buf:
- kfree (this->data_buf);
-out_mtd:
- kfree (toto_mtd);
-out:
- return err;
-}
-
-module_init(toto_init);
-
-/*
- * Clean up routine
- */
-static void __exit toto_cleanup (void)
-{
- struct nand_chip *this = (struct nand_chip *) &toto_mtd[1];
-
- /* Unregister partitions */
- del_mtd_partitions(toto_mtd);
-
- /* Unregister the device */
- del_mtd_device (toto_mtd);
-
- /* Free internal data buffers */
- kfree (this->data_buf);
-
- /* Free the MTD device structure */
- kfree (toto_mtd);
-
- /* stop flash writes */
- archflashwp(0,1);
-
- /* release gpios to system */
- gpiorelease(NAND_MASK);
-}
-module_exit(toto_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Richard Woodruff <r-woodruff2@ti.com>");
-MODULE_DESCRIPTION("Glue layer for NAND flash on toto board");
+++ /dev/null
-/*
- * drivers/mtd/tx4925ndfmc.c
- *
- * Overview:
- * This is a device driver for the NAND flash device found on the
- * Toshiba RBTX4925 reference board, which is a SmartMediaCard. It supports
- * 16MiB, 32MiB and 64MiB cards.
- *
- * Author: MontaVista Software, Inc. source@mvista.com
- *
- * Derived from drivers/mtd/autcpu12.c
- * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
- *
- * $Id: tx4925ndfmc.c,v 1.2 2004/03/27 19:55:53 gleixner Exp $
- *
- * Copyright (C) 2001 Toshiba Corporation
- *
- * 2003 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- */
-
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/tx4925/tx4925_nand.h>
-
-extern struct nand_oobinfo jffs2_oobinfo;
-
-/*
- * MTD structure for RBTX4925 board
- */
-static struct mtd_info *tx4925ndfmc_mtd = NULL;
-
-/*
- * Module stuff
- */
-#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE)
-#define tx4925ndfmc_init init_module
-#define tx4925ndfmc_cleanup cleanup_module
-#endif
-
-/*
- * Define partitions for flash devices
- */
-
-static struct mtd_partition partition_info16k[] = {
- { .name = "RBTX4925 flash partition 1",
- .offset = 0,
- .size = 8 * 0x00100000 },
- { .name = "RBTX4925 flash partition 2",
- .offset = 8 * 0x00100000,
- .size = 8 * 0x00100000 },
-};
-
-static struct mtd_partition partition_info32k[] = {
- { .name = "RBTX4925 flash partition 1",
- .offset = 0,
- .size = 8 * 0x00100000 },
- { .name = "RBTX4925 flash partition 2",
- .offset = 8 * 0x00100000,
- .size = 24 * 0x00100000 },
-};
-
-static struct mtd_partition partition_info64k[] = {
- { .name = "User FS",
- .offset = 0,
- .size = 16 * 0x00100000 },
- { .name = "RBTX4925 flash partition 2",
- .offset = 16 * 0x00100000,
- .size = 48 * 0x00100000},
-};
-
-static struct mtd_partition partition_info128k[] = {
- { .name = "Skip bad section",
- .offset = 0,
- .size = 16 * 0x00100000 },
- { .name = "User FS",
- .offset = 16 * 0x00100000,
- .size = 112 * 0x00100000 },
-};
-#define NUM_PARTITIONS16K 2
-#define NUM_PARTITIONS32K 2
-#define NUM_PARTITIONS64K 2
-#define NUM_PARTITIONS128K 2
-
-/*
- * hardware specific access to control-lines
-*/
-static void tx4925ndfmc_hwcontrol(struct mtd_info *mtd, int cmd)
-{
-
- switch(cmd){
-
- case NAND_CTL_SETCLE:
- tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_CLE;
- break;
- case NAND_CTL_CLRCLE:
- tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_CLE;
- break;
- case NAND_CTL_SETALE:
- tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ALE;
- break;
- case NAND_CTL_CLRALE:
- tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ALE;
- break;
- case NAND_CTL_SETNCE:
- tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_CE;
- break;
- case NAND_CTL_CLRNCE:
- tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_CE;
- break;
- case NAND_CTL_SETWP:
- tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_WE;
- break;
- case NAND_CTL_CLRWP:
- tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_WE;
- break;
- }
-}
-
-/*
-* read device ready pin
-*/
-static int tx4925ndfmc_device_ready(struct mtd_info *mtd)
-{
- int ready;
- ready = (tx4925_ndfmcptr->sr & TX4925_NDSFR_BUSY) ? 0 : 1;
- return ready;
-}
-void tx4925ndfmc_enable_hwecc(struct mtd_info *mtd, int mode)
-{
- /* reset first */
- tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_MASK;
- tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
- tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_ENAB;
-}
-static void tx4925ndfmc_disable_ecc(void)
-{
- tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
-}
-static void tx4925ndfmc_enable_read_ecc(void)
-{
- tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
- tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_READ;
-}
-void tx4925ndfmc_readecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code){
- int i;
- u_char *ecc = ecc_code;
- tx4925ndfmc_enable_read_ecc();
- for (i = 0;i < 6;i++,ecc++)
- *ecc = tx4925_read_nfmc(&(tx4925_ndfmcptr->dtr));
- tx4925ndfmc_disable_ecc();
-}
-void tx4925ndfmc_device_setup(void)
-{
-
- *(unsigned char *)0xbb005000 &= ~0x08;
-
- /* reset NDFMC */
- tx4925_ndfmcptr->rstr |= TX4925_NDFRSTR_RST;
- while (tx4925_ndfmcptr->rstr & TX4925_NDFRSTR_RST);
-
- /* setup BusSeparete, Hold Time, Strobe Pulse Width */
- tx4925_ndfmcptr->mcr = TX4925_BSPRT ? TX4925_NDFMCR_BSPRT : 0;
- tx4925_ndfmcptr->spr = TX4925_HOLD << 4 | TX4925_SPW;
-}
-static u_char tx4925ndfmc_nand_read_byte(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- return tx4925_read_nfmc(this->IO_ADDR_R);
-}
-
-static void tx4925ndfmc_nand_write_byte(struct mtd_info *mtd, u_char byte)
-{
- struct nand_chip *this = mtd->priv;
- tx4925_write_nfmc(byte, this->IO_ADDR_W);
-}
-
-static void tx4925ndfmc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- tx4925_write_nfmc(buf[i], this->IO_ADDR_W);
-}
-
-static void tx4925ndfmc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- buf[i] = tx4925_read_nfmc(this->IO_ADDR_R);
-}
-
-static int tx4925ndfmc_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- if (buf[i] != tx4925_read_nfmc(this->IO_ADDR_R))
- return -EFAULT;
-
- return 0;
-}
-
-/*
- * Send command to NAND device
- */
-static void tx4925ndfmc_nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
-{
- register struct nand_chip *this = mtd->priv;
-
- /* Begin command latch cycle */
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- /*
- * Write out the command to the device.
- */
- if (command == NAND_CMD_SEQIN) {
- int readcmd;
-
- if (column >= mtd->oobblock) {
- /* OOB area */
- column -= mtd->oobblock;
- readcmd = NAND_CMD_READOOB;
- } else if (column < 256) {
- /* First 256 bytes --> READ0 */
- readcmd = NAND_CMD_READ0;
- } else {
- column -= 256;
- readcmd = NAND_CMD_READ1;
- }
- this->write_byte(mtd, readcmd);
- }
- this->write_byte(mtd, command);
-
- /* Set ALE and clear CLE to start address cycle */
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-
- if (column != -1 || page_addr != -1) {
- this->hwcontrol(mtd, NAND_CTL_SETALE);
-
- /* Serially input address */
- if (column != -1)
- this->write_byte(mtd, column);
- if (page_addr != -1) {
- this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
- this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
- /* One more address cycle for higher density devices */
- if (mtd->size & 0x0c000000)
- this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
- }
- /* Latch in address */
- this->hwcontrol(mtd, NAND_CTL_CLRALE);
- }
-
- /*
- * program and erase have their own busy handlers
- * status and sequential in needs no delay
- */
- switch (command) {
-
- case NAND_CMD_PAGEPROG:
- /* Turn off WE */
- this->hwcontrol (mtd, NAND_CTL_CLRWP);
- return;
-
- case NAND_CMD_SEQIN:
- /* Turn on WE */
- this->hwcontrol (mtd, NAND_CTL_SETWP);
- return;
-
- case NAND_CMD_ERASE1:
- case NAND_CMD_ERASE2:
- case NAND_CMD_STATUS:
- return;
-
- case NAND_CMD_RESET:
- if (this->dev_ready)
- break;
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- this->write_byte(mtd, NAND_CMD_STATUS);
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
- while ( !(this->read_byte(mtd) & 0x40));
- return;
-
- /* This applies to read commands */
- default:
- /*
- * If we don't have access to the busy pin, we apply the given
- * command delay
- */
- if (!this->dev_ready) {
- udelay (this->chip_delay);
- return;
- }
- }
-
- /* wait until command is processed */
- while (!this->dev_ready(mtd));
-}
-
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partitio
-n **pparts, char *);
-#endif
-
-/*
- * Main initialization routine
- */
-extern int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
-int __init tx4925ndfmc_init (void)
-{
- struct nand_chip *this;
- int err = 0;
-
- /* Allocate memory for MTD device structure and private data */
- tx4925ndfmc_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip),
- GFP_KERNEL);
- if (!tx4925ndfmc_mtd) {
- printk ("Unable to allocate RBTX4925 NAND MTD device structure.\n");
- err = -ENOMEM;
- goto out;
- }
-
- tx4925ndfmc_device_setup();
-
- /* io is indirect via a register so don't need to ioremap address */
-
- /* Get pointer to private data */
- this = (struct nand_chip *) (&tx4925ndfmc_mtd[1]);
-
- /* Initialize structures */
- memset((char *) tx4925ndfmc_mtd, 0, sizeof(struct mtd_info));
- memset((char *) this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- tx4925ndfmc_mtd->priv = this;
-
- /* Set address of NAND IO lines */
- this->IO_ADDR_R = (unsigned long)&(tx4925_ndfmcptr->dtr);
- this->IO_ADDR_W = (unsigned long)&(tx4925_ndfmcptr->dtr);
- this->hwcontrol = tx4925ndfmc_hwcontrol;
- this->enable_hwecc = tx4925ndfmc_enable_hwecc;
- this->calculate_ecc = tx4925ndfmc_readecc;
- this->correct_data = nand_correct_data;
- this->eccmode = NAND_ECC_HW6_512;
- this->dev_ready = tx4925ndfmc_device_ready;
- /* 20 us command delay time */
- this->chip_delay = 20;
- this->read_byte = tx4925ndfmc_nand_read_byte;
- this->write_byte = tx4925ndfmc_nand_write_byte;
- this->cmdfunc = tx4925ndfmc_nand_command;
- this->write_buf = tx4925ndfmc_nand_write_buf;
- this->read_buf = tx4925ndfmc_nand_read_buf;
- this->verify_buf = tx4925ndfmc_nand_verify_buf;
-
- /* Scan to find existance of the device */
- if (nand_scan (tx4925ndfmc_mtd, 1)) {
- err = -ENXIO;
- goto out_ior;
- }
-
- /* Allocate memory for internal data buffer */
- this->data_buf = kmalloc (sizeof(u_char) * (tx4925ndfmc_mtd->oobblock + tx4925ndfmc_mtd->oobsize), GFP_KERNEL);
- if (!this->data_buf) {
- printk ("Unable to allocate NAND data buffer for RBTX4925.\n");
- err = -ENOMEM;
- goto out_ior;
- }
-
- /* Register the partitions */
-#ifdef CONFIG_MTD_CMDLINE_PARTS
- {
- int mtd_parts_nb = 0;
- struct mtd_partition *mtd_parts = 0;
- mtd_parts_nb = parse_cmdline_partitions(tx4925ndfmc_mtd, &mtd_parts, "tx4925ndfmc");
- if (mtd_parts_nb > 0)
- add_mtd_partitions(tx4925ndfmc_mtd, mtd_parts, mtd_parts_nb);
- else
- add_mtd_device(tx4925ndfmc_mtd);
- }
-#else /* ifdef CONFIG_MTD_CMDLINE_PARTS */
- switch(tx4925ndfmc_mtd->size){
- case 0x01000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info16k, NUM_PARTITIONS16K); break;
- case 0x02000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info32k, NUM_PARTITIONS32K); break;
- case 0x04000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info64k, NUM_PARTITIONS64K); break;
- case 0x08000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info128k, NUM_PARTITIONS128K); break;
- default: {
- printk ("Unsupported SmartMedia device\n");
- err = -ENXIO;
- goto out_buf;
- }
- }
-#endif /* ifdef CONFIG_MTD_CMDLINE_PARTS */
- goto out;
-
-out_buf:
- kfree (this->data_buf);
-out_ior:
-out:
- return err;
-}
-
-module_init(tx4925ndfmc_init);
-
-/*
- * Clean up routine
- */
-#ifdef MODULE
-static void __exit tx4925ndfmc_cleanup (void)
-{
- struct nand_chip *this = (struct nand_chip *) &tx4925ndfmc_mtd[1];
-
- /* Unregister partitions */
- del_mtd_partitions(tx4925ndfmc_mtd);
-
- /* Unregister the device */
- del_mtd_device (tx4925ndfmc_mtd);
-
- /* Free internal data buffers */
- kfree (this->data_buf);
-
- /* Free the MTD device structure */
- kfree (tx4925ndfmc_mtd);
-}
-module_exit(tx4925ndfmc_cleanup);
-#endif
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Alice Hennessy <ahennessy@mvista.com>");
-MODULE_DESCRIPTION("Glue layer for SmartMediaCard on Toshiba RBTX4925");
+++ /dev/null
-/*
- * drivers/mtd/nand/tx4938ndfmc.c
- *
- * Overview:
- * This is a device driver for the NAND flash device connected to
- * TX4938 internal NAND Memory Controller.
- * TX4938 NDFMC is almost same as TX4925 NDFMC, but register size are 64 bit.
- *
- * Author: source@mvista.com
- *
- * Based on spia.c by Steven J. Hill
- *
- * $Id: tx4938ndfmc.c,v 1.2 2004/03/27 19:55:53 gleixner Exp $
- *
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 2003 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-#include <linux/config.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/nand_ecc.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-#include <asm/bootinfo.h>
-#include <linux/delay.h>
-#include <asm/tx4938/rbtx4938.h>
-
-extern struct nand_oobinfo jffs2_oobinfo;
-
-/*
- * MTD structure for TX4938 NDFMC
- */
-static struct mtd_info *tx4938ndfmc_mtd;
-
-/*
- * Define partitions for flash device
- */
-#define flush_wb() (void)tx4938_ndfmcptr->mcr;
-
-#define NUM_PARTITIONS 3
-#define NUMBER_OF_CIS_BLOCKS 24
-#define SIZE_OF_BLOCK 0x00004000
-#define NUMBER_OF_BLOCK_PER_ZONE 1024
-#define SIZE_OF_ZONE (NUMBER_OF_BLOCK_PER_ZONE * SIZE_OF_BLOCK)
-#ifndef CONFIG_MTD_CMDLINE_PARTS
-/*
- * You can use the following sample of MTD partitions
- * on the NAND Flash Memory 32MB or more.
- *
- * The following figure shows the image of the sample partition on
- * the 32MB NAND Flash Memory.
- *
- * Block No.
- * 0 +-----------------------------+ ------
- * | CIS | ^
- * 24 +-----------------------------+ |
- * | kernel image | | Zone 0
- * | | |
- * +-----------------------------+ |
- * 1023 | unused area | v
- * +-----------------------------+ ------
- * 1024 | JFFS2 | ^
- * | | |
- * | | | Zone 1
- * | | |
- * | | |
- * | | v
- * 2047 +-----------------------------+ ------
- *
- */
-static struct mtd_partition partition_info[NUM_PARTITIONS] = {
- {
- .name = "RBTX4938 CIS Area",
- .offset = 0,
- .size = (NUMBER_OF_CIS_BLOCKS * SIZE_OF_BLOCK),
- .mask_flags = MTD_WRITEABLE /* This partition is NOT writable */
- },
- {
- .name = "RBTX4938 kernel image",
- .offset = MTDPART_OFS_APPEND,
- .size = 8 * 0x00100000, /* 8MB (Depends on size of kernel image) */
- .mask_flags = MTD_WRITEABLE /* This partition is NOT writable */
- },
- {
- .name = "Root FS (JFFS2)",
- .offset = (0 + SIZE_OF_ZONE), /* start address of next zone */
- .size = MTDPART_SIZ_FULL
- },
-};
-#endif
-
-static void tx4938ndfmc_hwcontrol(struct mtd_info *mtd, int cmd)
-{
- switch (cmd) {
- case NAND_CTL_SETCLE:
- tx4938_ndfmcptr->mcr |= TX4938_NDFMCR_CLE;
- break;
- case NAND_CTL_CLRCLE:
- tx4938_ndfmcptr->mcr &= ~TX4938_NDFMCR_CLE;
- break;
- case NAND_CTL_SETALE:
- tx4938_ndfmcptr->mcr |= TX4938_NDFMCR_ALE;
- break;
- case NAND_CTL_CLRALE:
- tx4938_ndfmcptr->mcr &= ~TX4938_NDFMCR_ALE;
- break;
- /* TX4938_NDFMCR_CE bit is 0:high 1:low */
- case NAND_CTL_SETNCE:
- tx4938_ndfmcptr->mcr |= TX4938_NDFMCR_CE;
- break;
- case NAND_CTL_CLRNCE:
- tx4938_ndfmcptr->mcr &= ~TX4938_NDFMCR_CE;
- break;
- case NAND_CTL_SETWP:
- tx4938_ndfmcptr->mcr |= TX4938_NDFMCR_WE;
- break;
- case NAND_CTL_CLRWP:
- tx4938_ndfmcptr->mcr &= ~TX4938_NDFMCR_WE;
- break;
- }
-}
-static int tx4938ndfmc_dev_ready(struct mtd_info *mtd)
-{
- flush_wb();
- return !(tx4938_ndfmcptr->sr & TX4938_NDFSR_BUSY);
-}
-static void tx4938ndfmc_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
-{
- u32 mcr = tx4938_ndfmcptr->mcr;
- mcr &= ~TX4938_NDFMCR_ECC_ALL;
- tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_OFF;
- tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_READ;
- ecc_code[1] = tx4938_ndfmcptr->dtr;
- ecc_code[0] = tx4938_ndfmcptr->dtr;
- ecc_code[2] = tx4938_ndfmcptr->dtr;
- tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_OFF;
-}
-static void tx4938ndfmc_enable_hwecc(struct mtd_info *mtd, int mode)
-{
- u32 mcr = tx4938_ndfmcptr->mcr;
- mcr &= ~TX4938_NDFMCR_ECC_ALL;
- tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_RESET;
- tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_OFF;
- tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_ON;
-}
-
-static u_char tx4938ndfmc_nand_read_byte(struct mtd_info *mtd)
-{
- struct nand_chip *this = mtd->priv;
- return tx4938_read_nfmc(this->IO_ADDR_R);
-}
-
-static void tx4938ndfmc_nand_write_byte(struct mtd_info *mtd, u_char byte)
-{
- struct nand_chip *this = mtd->priv;
- tx4938_write_nfmc(byte, this->IO_ADDR_W);
-}
-
-static void tx4938ndfmc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- tx4938_write_nfmc(buf[i], this->IO_ADDR_W);
-}
-
-static void tx4938ndfmc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- buf[i] = tx4938_read_nfmc(this->IO_ADDR_R);
-}
-
-static int tx4938ndfmc_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- int i;
- struct nand_chip *this = mtd->priv;
-
- for (i=0; i<len; i++)
- if (buf[i] != tx4938_read_nfmc(this->IO_ADDR_R))
- return -EFAULT;
-
- return 0;
-}
-
-/*
- * Send command to NAND device
- */
-static void tx4938ndfmc_nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
-{
- register struct nand_chip *this = mtd->priv;
-
- /* Begin command latch cycle */
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- /*
- * Write out the command to the device.
- */
- if (command == NAND_CMD_SEQIN) {
- int readcmd;
-
- if (column >= mtd->oobblock) {
- /* OOB area */
- column -= mtd->oobblock;
- readcmd = NAND_CMD_READOOB;
- } else if (column < 256) {
- /* First 256 bytes --> READ0 */
- readcmd = NAND_CMD_READ0;
- } else {
- column -= 256;
- readcmd = NAND_CMD_READ1;
- }
- this->write_byte(mtd, readcmd);
- }
- this->write_byte(mtd, command);
-
- /* Set ALE and clear CLE to start address cycle */
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-
- if (column != -1 || page_addr != -1) {
- this->hwcontrol(mtd, NAND_CTL_SETALE);
-
- /* Serially input address */
- if (column != -1)
- this->write_byte(mtd, column);
- if (page_addr != -1) {
- this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
- this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
- /* One more address cycle for higher density devices */
- if (mtd->size & 0x0c000000)
- this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
- }
- /* Latch in address */
- this->hwcontrol(mtd, NAND_CTL_CLRALE);
- }
-
- /*
- * program and erase have their own busy handlers
- * status and sequential in needs no delay
- */
- switch (command) {
-
- case NAND_CMD_PAGEPROG:
- /* Turn off WE */
- this->hwcontrol (mtd, NAND_CTL_CLRWP);
- return;
-
- case NAND_CMD_SEQIN:
- /* Turn on WE */
- this->hwcontrol (mtd, NAND_CTL_SETWP);
- return;
-
- case NAND_CMD_ERASE1:
- case NAND_CMD_ERASE2:
- case NAND_CMD_STATUS:
- return;
-
- case NAND_CMD_RESET:
- if (this->dev_ready)
- break;
- this->hwcontrol(mtd, NAND_CTL_SETCLE);
- this->write_byte(mtd, NAND_CMD_STATUS);
- this->hwcontrol(mtd, NAND_CTL_CLRCLE);
- while ( !(this->read_byte(mtd) & 0x40));
- return;
-
- /* This applies to read commands */
- default:
- /*
- * If we don't have access to the busy pin, we apply the given
- * command delay
- */
- if (!this->dev_ready) {
- udelay (this->chip_delay);
- return;
- }
- }
-
- /* wait until command is processed */
- while (!this->dev_ready(mtd));
-}
-
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partition **pparts, char *);
-#endif
-/*
- * Main initialization routine
- */
-int __init tx4938ndfmc_init (void)
-{
- struct nand_chip *this;
- int bsprt = 0, hold = 0xf, spw = 0xf;
- int protected = 0;
-
- if ((*rbtx4938_piosel_ptr & 0x0c) != 0x08) {
- printk("TX4938 NDFMC: disabled by IOC PIOSEL\n");
- return -ENODEV;
- }
- bsprt = 1;
- hold = 2;
- spw = 9 - 1; /* 8 GBUSCLK = 80ns (@ GBUSCLK 100MHz) */
-
- if ((tx4938_ccfgptr->pcfg &
- (TX4938_PCFG_ATA_SEL|TX4938_PCFG_ISA_SEL|TX4938_PCFG_NDF_SEL))
- != TX4938_PCFG_NDF_SEL) {
- printk("TX4938 NDFMC: disabled by PCFG.\n");
- return -ENODEV;
- }
-
- /* reset NDFMC */
- tx4938_ndfmcptr->rstr |= TX4938_NDFRSTR_RST;
- while (tx4938_ndfmcptr->rstr & TX4938_NDFRSTR_RST)
- ;
- /* setup BusSeparete, Hold Time, Strobe Pulse Width */
- tx4938_ndfmcptr->mcr = bsprt ? TX4938_NDFMCR_BSPRT : 0;
- tx4938_ndfmcptr->spr = hold << 4 | spw;
-
- /* Allocate memory for MTD device structure and private data */
- tx4938ndfmc_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip),
- GFP_KERNEL);
- if (!tx4938ndfmc_mtd) {
- printk ("Unable to allocate TX4938 NDFMC MTD device structure.\n");
- return -ENOMEM;
- }
-
- /* Get pointer to private data */
- this = (struct nand_chip *) (&tx4938ndfmc_mtd[1]);
-
- /* Initialize structures */
- memset((char *) tx4938ndfmc_mtd, 0, sizeof(struct mtd_info));
- memset((char *) this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- tx4938ndfmc_mtd->priv = this;
-
- /* Set address of NAND IO lines */
- this->IO_ADDR_R = (unsigned long)&tx4938_ndfmcptr->dtr;
- this->IO_ADDR_W = (unsigned long)&tx4938_ndfmcptr->dtr;
- this->hwcontrol = tx4938ndfmc_hwcontrol;
- this->dev_ready = tx4938ndfmc_dev_ready;
- this->calculate_ecc = tx4938ndfmc_calculate_ecc;
- this->correct_data = nand_correct_data;
- this->enable_hwecc = tx4938ndfmc_enable_hwecc;
- this->eccmode = NAND_ECC_HW3_256;
- this->chip_delay = 100;
- this->read_byte = tx4938ndfmc_nand_read_byte;
- this->write_byte = tx4938ndfmc_nand_write_byte;
- this->cmdfunc = tx4938ndfmc_nand_command;
- this->write_buf = tx4938ndfmc_nand_write_buf;
- this->read_buf = tx4938ndfmc_nand_read_buf;
- this->verify_buf = tx4938ndfmc_nand_verify_buf;
-
- /* Scan to find existance of the device */
- if (nand_scan (tx4938ndfmc_mtd, 1)) {
- kfree (tx4938ndfmc_mtd);
- return -ENXIO;
- }
-
- /* Allocate memory for internal data buffer */
- this->data_buf = kmalloc (sizeof(u_char) * (tx4938ndfmc_mtd->oobblock + tx4938ndfmc_mtd->oobsize), GFP_KERNEL);
- if (!this->data_buf) {
- printk ("Unable to allocate NAND data buffer for TX4938.\n");
- kfree (tx4938ndfmc_mtd);
- return -ENOMEM;
- }
-
- if (protected) {
- printk(KERN_INFO "TX4938 NDFMC: write protected.\n");
- tx4938ndfmc_mtd->flags &= ~(MTD_WRITEABLE | MTD_ERASEABLE);
- }
-
-#ifdef CONFIG_MTD_CMDLINE_PARTS
- {
- int mtd_parts_nb = 0;
- struct mtd_partition *mtd_parts = 0;
- mtd_parts_nb = parse_cmdline_partitions(tx4938ndfmc_mtd, &mtd_parts, "tx4938ndfmc");
- if (mtd_parts_nb > 0)
- add_mtd_partitions(tx4938ndfmc_mtd, mtd_parts, mtd_parts_nb);
- else
- add_mtd_device(tx4938ndfmc_mtd);
- }
-#else
- add_mtd_partitions(tx4938ndfmc_mtd, partition_info, NUM_PARTITIONS );
-#endif
-
- return 0;
-}
-module_init(tx4938ndfmc_init);
-
-/*
- * Clean up routine
- */
-static void __exit tx4938ndfmc_cleanup (void)
-{
- struct nand_chip *this = (struct nand_chip *) tx4938ndfmc_mtd->priv;
-
- /* Unregister the device */
-#ifdef CONFIG_MTD_CMDLINE_PARTS
- del_mtd_partitions(tx4938ndfmc_mtd);
-#endif
- del_mtd_device (tx4938ndfmc_mtd);
-
- /* Free the MTD device structure */
- kfree (tx4938ndfmc_mtd);
-
- /* Free internal data buffer */
- kfree (this->data_buf);
-}
-module_exit(tx4938ndfmc_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Alice Hennessy <ahennessy@mvista.com>");
-MODULE_DESCRIPTION("Board-specific glue layer for NAND flash on TX4938 NDFMC");
+++ /dev/null
-/* auto_irq.c: Auto-configure IRQ lines for linux. */
-/*
- Written 1994 by Donald Becker.
-
- The author may be reached as becker@scyld.com
-
- This code is a general-purpose IRQ line detector for devices with
- jumpered IRQ lines. If you can make the device raise an IRQ (and
- that IRQ line isn't already being used), these routines will tell
- you what IRQ line it's using -- perfect for those oh-so-cool boot-time
- device probes!
-
- To use this, first call autoirq_setup(timeout). TIMEOUT is how many
- 'jiffies' (1/100 sec.) to detect other devices that have active IRQ lines,
- and can usually be zero at boot. 'autoirq_setup()' returns the bit
- vector of nominally-available IRQ lines (lines may be physically in-use,
- but not yet registered to a device).
- Next, set up your device to trigger an interrupt.
- Finally call autoirq_report(TIMEOUT) to find out which IRQ line was
- most recently active. The TIMEOUT should usually be zero, but may
- be set to the number of jiffies to wait for a slow device to raise an IRQ.
-
- The idea of using the setup timeout to filter out bogus IRQs came from
- the serial driver.
-*/
-
-
-#ifdef version
-static const char *version=
-"auto_irq.c:v1.11 Donald Becker (becker@scyld.com)";
-#endif
-
-#include <linux/module.h>
-#include <linux/jiffies.h>
-#include <linux/delay.h>
-#include <asm/bitops.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <linux/netdevice.h>
-
-static unsigned long irqs;
-
-void autoirq_setup(int waittime)
-{
- irqs = probe_irq_on();
-}
-
-#define BUSY_LOOP_UNTIL(j) while ((long)(jiffies-(j)) < 0) ;
-int autoirq_report(int waittime)
-{
- unsigned long delay = jiffies + waittime;
- BUSY_LOOP_UNTIL(delay)
- return probe_irq_off(irqs);
-}
-
-EXPORT_SYMBOL(autoirq_setup);
-EXPORT_SYMBOL(autoirq_report);
-
-\f
-/*
- * Local variables:
- * compile-command: "gcc -DKERNEL -Wall -O6 -fomit-frame-pointer -I/usr/src/linux/net/tcp -c auto_irq.c"
- * version-control: t
- * kept-new-versions: 5
- * c-indent-level: 4
- * tab-width: 4
- * End:
- */
+++ /dev/null
-config FEC_8XX
- tristate "Motorola 8xx FEC driver"
- depends on NET_ETHERNET && 8xx && (NETTA || NETPHONE)
- select MII
-
-config FEC_8XX_GENERIC_PHY
- bool "Support any generic PHY"
- depends on FEC_8XX
- default y
-
-config FEC_8XX_DM9161_PHY
- bool "Support DM9161 PHY"
- depends on FEC_8XX
- default n
+++ /dev/null
-#
-# Makefile for the Motorola 8xx FEC ethernet controller
-#
-
-obj-$(CONFIG_FEC_8XX) += fec_8xx.o
-
-fec_8xx-objs := fec_main.o fec_mii.o
-
-# the platform instantatiation objects
-ifeq ($(CONFIG_NETTA),y)
-fec_8xx-objs += fec_8xx-netta.o
-endif
+++ /dev/null
-/*
- * FEC instantatiation file for NETTA
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-
-#include <asm/8xx_immap.h>
-#include <asm/pgtable.h>
-#include <asm/mpc8xx.h>
-#include <asm/irq.h>
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-#include <asm/commproc.h>
-
-#include "fec_8xx.h"
-
-/*************************************************/
-
-static struct fec_platform_info fec1_info = {
- .fec_no = 0,
- .use_mdio = 1,
- .phy_addr = 8,
- .fec_irq = SIU_LEVEL1,
- .phy_irq = CPM_IRQ_OFFSET + CPMVEC_PIO_PC6,
- .rx_ring = 128,
- .tx_ring = 16,
- .rx_copybreak = 240,
- .use_napi = 1,
- .napi_weight = 17,
-};
-
-static struct fec_platform_info fec2_info = {
- .fec_no = 1,
- .use_mdio = 1,
- .phy_addr = 2,
- .fec_irq = SIU_LEVEL3,
- .phy_irq = CPM_IRQ_OFFSET + CPMVEC_PIO_PC7,
- .rx_ring = 128,
- .tx_ring = 16,
- .rx_copybreak = 240,
- .use_napi = 1,
- .napi_weight = 17,
-};
-
-static struct net_device *fec1_dev;
-static struct net_device *fec2_dev;
-
-/* XXX custom u-boot & Linux startup needed */
-extern const char *__fw_getenv(const char *var);
-
-/* access ports */
-#define setbits32(_addr, _v) __fec_out32(&(_addr), __fec_in32(&(_addr)) | (_v))
-#define clrbits32(_addr, _v) __fec_out32(&(_addr), __fec_in32(&(_addr)) & ~(_v))
-
-#define setbits16(_addr, _v) __fec_out16(&(_addr), __fec_in16(&(_addr)) | (_v))
-#define clrbits16(_addr, _v) __fec_out16(&(_addr), __fec_in16(&(_addr)) & ~(_v))
-
-int fec_8xx_platform_init(void)
-{
- immap_t *immap = (immap_t *)IMAP_ADDR;
- bd_t *bd = (bd_t *) __res;
- const char *s;
- char *e;
- int i;
-
- /* use MDC for MII */
- setbits16(immap->im_ioport.iop_pdpar, 0x0080);
- clrbits16(immap->im_ioport.iop_pddir, 0x0080);
-
- /* configure FEC1 pins */
- setbits16(immap->im_ioport.iop_papar, 0xe810);
- setbits16(immap->im_ioport.iop_padir, 0x0810);
- clrbits16(immap->im_ioport.iop_padir, 0xe000);
-
- setbits32(immap->im_cpm.cp_pbpar, 0x00000001);
- clrbits32(immap->im_cpm.cp_pbdir, 0x00000001);
-
- setbits32(immap->im_cpm.cp_cptr, 0x00000100);
- clrbits32(immap->im_cpm.cp_cptr, 0x00000050);
-
- clrbits16(immap->im_ioport.iop_pcpar, 0x0200);
- clrbits16(immap->im_ioport.iop_pcdir, 0x0200);
- clrbits16(immap->im_ioport.iop_pcso, 0x0200);
- setbits16(immap->im_ioport.iop_pcint, 0x0200);
-
- /* configure FEC2 pins */
- setbits32(immap->im_cpm.cp_pepar, 0x00039620);
- setbits32(immap->im_cpm.cp_pedir, 0x00039620);
- setbits32(immap->im_cpm.cp_peso, 0x00031000);
- clrbits32(immap->im_cpm.cp_peso, 0x00008620);
-
- setbits32(immap->im_cpm.cp_cptr, 0x00000080);
- clrbits32(immap->im_cpm.cp_cptr, 0x00000028);
-
- clrbits16(immap->im_ioport.iop_pcpar, 0x0200);
- clrbits16(immap->im_ioport.iop_pcdir, 0x0200);
- clrbits16(immap->im_ioport.iop_pcso, 0x0200);
- setbits16(immap->im_ioport.iop_pcint, 0x0200);
-
- /* fill up */
- fec1_info.sys_clk = bd->bi_intfreq;
- fec2_info.sys_clk = bd->bi_intfreq;
-
- s = __fw_getenv("ethaddr");
- if (s != NULL) {
- for (i = 0; i < 6; i++) {
- fec1_info.macaddr[i] = simple_strtoul(s, &e, 16);
- if (*e)
- s = e + 1;
- }
- }
-
- s = __fw_getenv("eth1addr");
- if (s != NULL) {
- for (i = 0; i < 6; i++) {
- fec2_info.macaddr[i] = simple_strtoul(s, &e, 16);
- if (*e)
- s = e + 1;
- }
- }
-
- fec_8xx_init_one(&fec1_info, &fec1_dev);
- fec_8xx_init_one(&fec2_info, &fec2_dev);
-
- return fec1_dev != NULL && fec2_dev != NULL ? 0 : -1;
-}
-
-void fec_8xx_platform_cleanup(void)
-{
- if (fec2_dev != NULL)
- fec_8xx_cleanup_one(fec2_dev);
-
- if (fec1_dev != NULL)
- fec_8xx_cleanup_one(fec1_dev);
-}
+++ /dev/null
-#ifndef FEC_8XX_H
-#define FEC_8XX_H
-
-#include <linux/mii.h>
-#include <linux/netdevice.h>
-
-#include <linux/types.h>
-
-/* HW info */
-
-/* CRC polynomium used by the FEC for the multicast group filtering */
-#define FEC_CRC_POLY 0x04C11DB7
-
-#define MII_ADVERTISE_HALF (ADVERTISE_100HALF | \
- ADVERTISE_10HALF | ADVERTISE_CSMA)
-#define MII_ADVERTISE_ALL (ADVERTISE_100FULL | \
- ADVERTISE_10FULL | MII_ADVERTISE_HALF)
-
-/* Interrupt events/masks.
-*/
-#define FEC_ENET_HBERR 0x80000000U /* Heartbeat error */
-#define FEC_ENET_BABR 0x40000000U /* Babbling receiver */
-#define FEC_ENET_BABT 0x20000000U /* Babbling transmitter */
-#define FEC_ENET_GRA 0x10000000U /* Graceful stop complete */
-#define FEC_ENET_TXF 0x08000000U /* Full frame transmitted */
-#define FEC_ENET_TXB 0x04000000U /* A buffer was transmitted */
-#define FEC_ENET_RXF 0x02000000U /* Full frame received */
-#define FEC_ENET_RXB 0x01000000U /* A buffer was received */
-#define FEC_ENET_MII 0x00800000U /* MII interrupt */
-#define FEC_ENET_EBERR 0x00400000U /* SDMA bus error */
-
-#define FEC_ECNTRL_PINMUX 0x00000004
-#define FEC_ECNTRL_ETHER_EN 0x00000002
-#define FEC_ECNTRL_RESET 0x00000001
-
-#define FEC_RCNTRL_BC_REJ 0x00000010
-#define FEC_RCNTRL_PROM 0x00000008
-#define FEC_RCNTRL_MII_MODE 0x00000004
-#define FEC_RCNTRL_DRT 0x00000002
-#define FEC_RCNTRL_LOOP 0x00000001
-
-#define FEC_TCNTRL_FDEN 0x00000004
-#define FEC_TCNTRL_HBC 0x00000002
-#define FEC_TCNTRL_GTS 0x00000001
-
-/* values for MII phy_status */
-
-#define PHY_CONF_ANE 0x0001 /* 1 auto-negotiation enabled */
-#define PHY_CONF_LOOP 0x0002 /* 1 loopback mode enabled */
-#define PHY_CONF_SPMASK 0x00f0 /* mask for speed */
-#define PHY_CONF_10HDX 0x0010 /* 10 Mbit half duplex supported */
-#define PHY_CONF_10FDX 0x0020 /* 10 Mbit full duplex supported */
-#define PHY_CONF_100HDX 0x0040 /* 100 Mbit half duplex supported */
-#define PHY_CONF_100FDX 0x0080 /* 100 Mbit full duplex supported */
-
-#define PHY_STAT_LINK 0x0100 /* 1 up - 0 down */
-#define PHY_STAT_FAULT 0x0200 /* 1 remote fault */
-#define PHY_STAT_ANC 0x0400 /* 1 auto-negotiation complete */
-#define PHY_STAT_SPMASK 0xf000 /* mask for speed */
-#define PHY_STAT_10HDX 0x1000 /* 10 Mbit half duplex selected */
-#define PHY_STAT_10FDX 0x2000 /* 10 Mbit full duplex selected */
-#define PHY_STAT_100HDX 0x4000 /* 100 Mbit half duplex selected */
-#define PHY_STAT_100FDX 0x8000 /* 100 Mbit full duplex selected */
-
-typedef struct phy_info {
- unsigned int id;
- const char *name;
- void (*startup) (struct net_device * dev);
- void (*shutdown) (struct net_device * dev);
- void (*ack_int) (struct net_device * dev);
-} phy_info_t;
-
-/* The FEC stores dest/src/type, data, and checksum for receive packets.
- */
-#define MAX_MTU 1508 /* Allow fullsized pppoe packets over VLAN */
-#define MIN_MTU 46 /* this is data size */
-#define CRC_LEN 4
-
-#define PKT_MAXBUF_SIZE (MAX_MTU+ETH_HLEN+CRC_LEN)
-#define PKT_MINBUF_SIZE (MIN_MTU+ETH_HLEN+CRC_LEN)
-
-/* Must be a multiple of 4 */
-#define PKT_MAXBLR_SIZE ((PKT_MAXBUF_SIZE+3) & ~3)
-/* This is needed so that invalidate_xxx wont invalidate too much */
-#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE)
-
-/* platform interface */
-
-struct fec_platform_info {
- int fec_no; /* FEC index */
- int use_mdio; /* use external MII */
- int phy_addr; /* the phy address */
- int fec_irq, phy_irq; /* the irq for the controller */
- int rx_ring, tx_ring; /* number of buffers on rx */
- int sys_clk; /* system clock */
- __u8 macaddr[6]; /* mac address */
- int rx_copybreak; /* limit we copy small frames */
- int use_napi; /* use NAPI */
- int napi_weight; /* NAPI weight */
-};
-
-/* forward declaration */
-struct fec;
-
-struct fec_enet_private {
- spinlock_t lock; /* during all ops except TX pckt processing */
- spinlock_t tx_lock; /* during fec_start_xmit and fec_tx */
- int fecno;
- struct fec *fecp;
- const struct fec_platform_info *fpi;
- int rx_ring, tx_ring;
- dma_addr_t ring_mem_addr;
- void *ring_base;
- struct sk_buff **rx_skbuff;
- struct sk_buff **tx_skbuff;
- cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */
- cbd_t *tx_bd_base;
- cbd_t *dirty_tx; /* ring entries to be free()ed. */
- cbd_t *cur_rx;
- cbd_t *cur_tx;
- int tx_free;
- struct net_device_stats stats;
- struct timer_list phy_timer_list;
- const struct phy_info *phy;
- unsigned int fec_phy_speed;
- __u32 msg_enable;
- struct mii_if_info mii_if;
-};
-
-/***************************************************************************/
-
-void fec_restart(struct net_device *dev, int duplex, int speed);
-void fec_stop(struct net_device *dev);
-
-/***************************************************************************/
-
-int fec_mii_read(struct net_device *dev, int phy_id, int location);
-void fec_mii_write(struct net_device *dev, int phy_id, int location, int value);
-
-int fec_mii_phy_id_detect(struct net_device *dev);
-void fec_mii_startup(struct net_device *dev);
-void fec_mii_shutdown(struct net_device *dev);
-void fec_mii_ack_int(struct net_device *dev);
-
-void fec_mii_link_status_change_check(struct net_device *dev, int init_media);
-
-/***************************************************************************/
-
-#define FEC1_NO 0x00
-#define FEC2_NO 0x01
-#define FEC3_NO 0x02
-
-int fec_8xx_init_one(const struct fec_platform_info *fpi,
- struct net_device **devp);
-int fec_8xx_cleanup_one(struct net_device *dev);
-
-/***************************************************************************/
-
-#define DRV_MODULE_NAME "fec_8xx"
-#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "0.1"
-#define DRV_MODULE_RELDATE "May 6, 2004"
-
-/***************************************************************************/
-
-int fec_8xx_platform_init(void);
-void fec_8xx_platform_cleanup(void);
-
-/***************************************************************************/
-
-/* FEC access macros */
-#if defined(CONFIG_8xx)
-/* for a 8xx __raw_xxx's are sufficient */
-#define __fec_out32(addr, x) __raw_writel(x, addr)
-#define __fec_out16(addr, x) __raw_writew(x, addr)
-#define __fec_in32(addr) __raw_readl(addr)
-#define __fec_in16(addr) __raw_readw(addr)
-#else
-/* for others play it safe */
-#define __fec_out32(addr, x) out_be32(addr, x)
-#define __fec_out16(addr, x) out_be16(addr, x)
-#define __fec_in32(addr) in_be32(addr)
-#define __fec_in16(addr) in_be16(addr)
-#endif
-
-/* write */
-#define FW(_fecp, _reg, _v) __fec_out32(&(_fecp)->fec_ ## _reg, (_v))
-
-/* read */
-#define FR(_fecp, _reg) __fec_in32(&(_fecp)->fec_ ## _reg)
-
-/* set bits */
-#define FS(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) | (_v))
-
-/* clear bits */
-#define FC(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) & ~(_v))
-
-/* buffer descriptor access macros */
-
-/* write */
-#define CBDW_SC(_cbd, _sc) __fec_out16(&(_cbd)->cbd_sc, (_sc))
-#define CBDW_DATLEN(_cbd, _datlen) __fec_out16(&(_cbd)->cbd_datlen, (_datlen))
-#define CBDW_BUFADDR(_cbd, _bufaddr) __fec_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
-
-/* read */
-#define CBDR_SC(_cbd) __fec_in16(&(_cbd)->cbd_sc)
-#define CBDR_DATLEN(_cbd) __fec_in16(&(_cbd)->cbd_datlen)
-#define CBDR_BUFADDR(_cbd) __fec_in32(&(_cbd)->cbd_bufaddr)
-
-/* set bits */
-#define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
-
-/* clear bits */
-#define CBDC_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc))
-
-/***************************************************************************/
-
-#endif
+++ /dev/null
-/*
- * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx.
- *
- * Copyright (c) 2003 Intracom S.A.
- * by Pantelis Antoniou <panto@intracom.gr>
- *
- * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com>
- * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se>
- *
- * Released under the GPL
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-
-#include <asm/8xx_immap.h>
-#include <asm/pgtable.h>
-#include <asm/mpc8xx.h>
-#include <asm/irq.h>
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-#include <asm/commproc.h>
-#include <asm/dma-mapping.h>
-
-#include "fec_8xx.h"
-
-/*************************************************/
-
-#define FEC_MAX_MULTICAST_ADDRS 64
-
-/*************************************************/
-
-static char version[] __devinitdata =
- DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")" "\n";
-
-MODULE_AUTHOR("Pantelis Antoniou <panto@intracom.gr>");
-MODULE_DESCRIPTION("Motorola 8xx FEC ethernet driver");
-MODULE_LICENSE("GPL");
-
-MODULE_PARM(fec_8xx_debug, "i");
-MODULE_PARM_DESC(fec_8xx_debug,
- "FEC 8xx bitmapped debugging message enable value");
-
-int fec_8xx_debug = -1; /* -1 == use FEC_8XX_DEF_MSG_ENABLE as value */
-
-/*************************************************/
-
-/*
- * Delay to wait for FEC reset command to complete (in us)
- */
-#define FEC_RESET_DELAY 50
-
-/*****************************************************************************************/
-
-static void fec_whack_reset(fec_t * fecp)
-{
- int i;
-
- /*
- * Whack a reset. We should wait for this.
- */
- FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET);
- for (i = 0;
- (FR(fecp, ecntrl) & FEC_ECNTRL_RESET) != 0 && i < FEC_RESET_DELAY;
- i++)
- udelay(1);
-
- if (i == FEC_RESET_DELAY)
- printk(KERN_WARNING "FEC Reset timeout!\n");
-
-}
-
-/****************************************************************************/
-
-/*
- * Transmitter timeout.
- */
-#define TX_TIMEOUT (2*HZ)
-
-/****************************************************************************/
-
-/*
- * Returns the CRC needed when filling in the hash table for
- * multicast group filtering
- * pAddr must point to a MAC address (6 bytes)
- */
-static __u32 fec_mulicast_calc_crc(char *pAddr)
-{
- u8 byte;
- int byte_count;
- int bit_count;
- __u32 crc = 0xffffffff;
- u8 msb;
-
- for (byte_count = 0; byte_count < 6; byte_count++) {
- byte = pAddr[byte_count];
- for (bit_count = 0; bit_count < 8; bit_count++) {
- msb = crc >> 31;
- crc <<= 1;
- if (msb ^ (byte & 0x1)) {
- crc ^= FEC_CRC_POLY;
- }
- byte >>= 1;
- }
- }
- return (crc);
-}
-
-/*
- * Set or clear the multicast filter for this adaptor.
- * Skeleton taken from sunlance driver.
- * The CPM Ethernet implementation allows Multicast as well as individual
- * MAC address filtering. Some of the drivers check to make sure it is
- * a group multicast address, and discard those that are not. I guess I
- * will do the same for now, but just remove the test if you want
- * individual filtering as well (do the upper net layers want or support
- * this kind of feature?).
- */
-static void fec_set_multicast_list(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- struct dev_mc_list *pmc;
- __u32 crc;
- int temp;
- __u32 csrVal;
- int hash_index;
- __u32 hthi, htlo;
- unsigned long flags;
-
-
- if ((dev->flags & IFF_PROMISC) != 0) {
-
- spin_lock_irqsave(&fep->lock, flags);
- FS(fecp, r_cntrl, FEC_RCNTRL_PROM);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- /*
- * Log any net taps.
- */
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s: Promiscuous mode enabled.\n", dev->name);
- return;
-
- }
-
- if ((dev->flags & IFF_ALLMULTI) != 0 ||
- dev->mc_count > FEC_MAX_MULTICAST_ADDRS) {
- /*
- * Catch all multicast addresses, set the filter to all 1's.
- */
- hthi = 0xffffffffU;
- htlo = 0xffffffffU;
- } else {
- hthi = 0;
- htlo = 0;
-
- /*
- * Now populate the hash table
- */
- for (pmc = dev->mc_list; pmc != NULL; pmc = pmc->next) {
- crc = fec_mulicast_calc_crc(pmc->dmi_addr);
- temp = (crc & 0x3f) >> 1;
- hash_index = ((temp & 0x01) << 4) |
- ((temp & 0x02) << 2) |
- ((temp & 0x04)) |
- ((temp & 0x08) >> 2) |
- ((temp & 0x10) >> 4);
- csrVal = (1 << hash_index);
- if (crc & 1)
- hthi |= csrVal;
- else
- htlo |= csrVal;
- }
- }
-
- spin_lock_irqsave(&fep->lock, flags);
- FC(fecp, r_cntrl, FEC_RCNTRL_PROM);
- FW(fecp, hash_table_high, hthi);
- FW(fecp, hash_table_low, htlo);
- spin_unlock_irqrestore(&fep->lock, flags);
-}
-
-static int fec_set_mac_address(struct net_device *dev, void *addr)
-{
- struct sockaddr *mac = addr;
- struct fec_enet_private *fep = netdev_priv(dev);
- struct fec *fecp = fep->fecp;
- int i;
- __u32 addrhi, addrlo;
- unsigned long flags;
-
- /* Get pointer to SCC area in parameter RAM. */
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = mac->sa_data[i];
-
- /*
- * Set station address.
- */
- addrhi = ((__u32) dev->dev_addr[0] << 24) |
- ((__u32) dev->dev_addr[1] << 16) |
- ((__u32) dev->dev_addr[2] << 8) |
- (__u32) dev->dev_addr[3];
- addrlo = ((__u32) dev->dev_addr[4] << 24) |
- ((__u32) dev->dev_addr[5] << 16);
-
- spin_lock_irqsave(&fep->lock, flags);
- FW(fecp, addr_low, addrhi);
- FW(fecp, addr_high, addrlo);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- return 0;
-}
-
-/*
- * This function is called to start or restart the FEC during a link
- * change. This only happens when switching between half and full
- * duplex.
- */
-void fec_restart(struct net_device *dev, int duplex, int speed)
-{
-#ifdef CONFIG_DUET
- immap_t *immap = (immap_t *) IMAP_ADDR;
- __u32 cptr;
-#endif
- struct fec_enet_private *fep = netdev_priv(dev);
- struct fec *fecp = fep->fecp;
- const struct fec_platform_info *fpi = fep->fpi;
- cbd_t *bdp;
- struct sk_buff *skb;
- int i;
- __u32 addrhi, addrlo;
-
- fec_whack_reset(fep->fecp);
-
- /*
- * Set station address.
- */
- addrhi = ((__u32) dev->dev_addr[0] << 24) |
- ((__u32) dev->dev_addr[1] << 16) |
- ((__u32) dev->dev_addr[2] << 8) |
- (__u32) dev->dev_addr[3];
- addrlo = ((__u32) dev->dev_addr[4] << 24) |
- ((__u32) dev->dev_addr[5] << 16);
- FW(fecp, addr_low, addrhi);
- FW(fecp, addr_high, addrlo);
-
- /*
- * Reset all multicast.
- */
- FW(fecp, hash_table_high, 0);
- FW(fecp, hash_table_low, 0);
-
- /*
- * Set maximum receive buffer size.
- */
- FW(fecp, r_buff_size, PKT_MAXBLR_SIZE);
- FW(fecp, r_hash, PKT_MAXBUF_SIZE);
-
- /*
- * Set receive and transmit descriptor base.
- */
- FW(fecp, r_des_start, iopa((__u32) (fep->rx_bd_base)));
- FW(fecp, x_des_start, iopa((__u32) (fep->tx_bd_base)));
-
- fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
- fep->tx_free = fep->tx_ring;
- fep->cur_rx = fep->rx_bd_base;
-
- /*
- * Reset SKB receive buffers
- */
- for (i = 0; i < fep->rx_ring; i++) {
- if ((skb = fep->rx_skbuff[i]) == NULL)
- continue;
- fep->rx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
- }
-
- /*
- * Initialize the receive buffer descriptors.
- */
- for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) {
- skb = dev_alloc_skb(ENET_RX_FRSIZE);
- if (skb == NULL) {
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s Memory squeeze, unable to allocate skb\n",
- dev->name);
- fep->stats.rx_dropped++;
- break;
- }
- fep->rx_skbuff[i] = skb;
- skb->dev = dev;
- CBDW_BUFADDR(bdp, dma_map_single(NULL, skb->data,
- L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
- DMA_FROM_DEVICE));
- CBDW_DATLEN(bdp, 0); /* zero */
- CBDW_SC(bdp, BD_ENET_RX_EMPTY |
- ((i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP));
- }
- /*
- * if we failed, fillup remainder
- */
- for (; i < fep->rx_ring; i++, bdp++) {
- fep->rx_skbuff[i] = NULL;
- CBDW_SC(bdp, (i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP);
- }
-
- /*
- * Reset SKB transmit buffers.
- */
- for (i = 0; i < fep->tx_ring; i++) {
- if ((skb = fep->tx_skbuff[i]) == NULL)
- continue;
- fep->tx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
- }
-
- /*
- * ...and the same for transmit.
- */
- for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) {
- fep->tx_skbuff[i] = NULL;
- CBDW_BUFADDR(bdp, virt_to_bus(NULL));
- CBDW_DATLEN(bdp, 0);
- CBDW_SC(bdp, (i < fep->tx_ring - 1) ? 0 : BD_SC_WRAP);
- }
-
- /*
- * Enable big endian and don't care about SDMA FC.
- */
- FW(fecp, fun_code, 0x78000000);
-
- /*
- * Set MII speed.
- */
- FW(fecp, mii_speed, fep->fec_phy_speed);
-
- /*
- * Clear any outstanding interrupt.
- */
- FW(fecp, ievent, 0xffc0);
- FW(fecp, ivec, (fpi->fec_irq / 2) << 29);
-
- /*
- * adjust to speed (only for DUET & RMII)
- */
-#ifdef CONFIG_DUET
- cptr = in_be32(&immap->im_cpm.cp_cptr);
- switch (fpi->fec_no) {
- case 0:
- /*
- * check if in RMII mode
- */
- if ((cptr & 0x100) == 0)
- break;
-
- if (speed == 10)
- cptr |= 0x0000010;
- else if (speed == 100)
- cptr &= ~0x0000010;
- break;
- case 1:
- /*
- * check if in RMII mode
- */
- if ((cptr & 0x80) == 0)
- break;
-
- if (speed == 10)
- cptr |= 0x0000008;
- else if (speed == 100)
- cptr &= ~0x0000008;
- break;
- default:
- break;
- }
- out_be32(&immap->im_cpm.cp_cptr, cptr);
-#endif
-
- FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- /*
- * adjust to duplex mode
- */
- if (duplex) {
- FC(fecp, r_cntrl, FEC_RCNTRL_DRT);
- FS(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD enable */
- } else {
- FS(fecp, r_cntrl, FEC_RCNTRL_DRT);
- FC(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD disable */
- }
-
- /*
- * Enable interrupts we wish to service.
- */
- FW(fecp, imask, FEC_ENET_TXF | FEC_ENET_TXB |
- FEC_ENET_RXF | FEC_ENET_RXB);
-
- /*
- * And last, enable the transmit and receive processing.
- */
- FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
- FW(fecp, r_des_active, 0x01000000);
-}
-
-void fec_stop(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- struct sk_buff *skb;
- int i;
-
- if ((FR(fecp, ecntrl) & FEC_ECNTRL_ETHER_EN) == 0)
- return; /* already down */
-
- FW(fecp, x_cntrl, 0x01); /* Graceful transmit stop */
- for (i = 0; ((FR(fecp, ievent) & 0x10000000) == 0) &&
- i < FEC_RESET_DELAY; i++)
- udelay(1);
-
- if (i == FEC_RESET_DELAY)
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s FEC timeout on graceful transmit stop\n",
- dev->name);
- /*
- * Disable FEC. Let only MII interrupts.
- */
- FW(fecp, imask, 0);
- FW(fecp, ecntrl, ~FEC_ECNTRL_ETHER_EN);
-
- /*
- * Reset SKB transmit buffers.
- */
- for (i = 0; i < fep->tx_ring; i++) {
- if ((skb = fep->tx_skbuff[i]) == NULL)
- continue;
- fep->tx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
- }
-
- /*
- * Reset SKB receive buffers
- */
- for (i = 0; i < fep->rx_ring; i++) {
- if ((skb = fep->rx_skbuff[i]) == NULL)
- continue;
- fep->rx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
- }
-}
-
-/* common receive function */
-static int fec_enet_rx_common(struct net_device *dev, int *budget)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- const struct fec_platform_info *fpi = fep->fpi;
- cbd_t *bdp;
- struct sk_buff *skb, *skbn, *skbt;
- int received = 0;
- __u16 pkt_len, sc;
- int curidx;
- int rx_work_limit;
-
- if (fpi->use_napi) {
- rx_work_limit = min(dev->quota, *budget);
-
- if (!netif_running(dev))
- return 0;
- }
-
- /*
- * First, grab all of the stats for the incoming packet.
- * These get messed up if we get called due to a busy condition.
- */
- bdp = fep->cur_rx;
-
- /* clear RX status bits for napi*/
- if (fpi->use_napi)
- FW(fecp, ievent, FEC_ENET_RXF | FEC_ENET_RXB);
-
- while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
-
- curidx = bdp - fep->rx_bd_base;
-
- /*
- * Since we have allocated space to hold a complete frame,
- * the last indicator should be set.
- */
- if ((sc & BD_ENET_RX_LAST) == 0)
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s rcv is not +last\n",
- dev->name);
-
- /*
- * Check for errors.
- */
- if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
- BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
- fep->stats.rx_errors++;
- /* Frame too long or too short. */
- if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
- fep->stats.rx_length_errors++;
- /* Frame alignment */
- if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
- fep->stats.rx_frame_errors++;
- /* CRC Error */
- if (sc & BD_ENET_RX_CR)
- fep->stats.rx_crc_errors++;
- /* FIFO overrun */
- if (sc & BD_ENET_RX_OV)
- fep->stats.rx_crc_errors++;
-
- skbn = fep->rx_skbuff[curidx];
- BUG_ON(skbn == NULL);
-
- } else {
-
- /* napi, got packet but no quota */
- if (fpi->use_napi && --rx_work_limit < 0)
- break;
-
- skb = fep->rx_skbuff[curidx];
- BUG_ON(skb == NULL);
-
- /*
- * Process the incoming frame.
- */
- fep->stats.rx_packets++;
- pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */
- fep->stats.rx_bytes += pkt_len + 4;
-
- if (pkt_len <= fpi->rx_copybreak) {
- /* +2 to make IP header L1 cache aligned */
- skbn = dev_alloc_skb(pkt_len + 2);
- if (skbn != NULL) {
- skb_reserve(skbn, 2); /* align IP header */
- memcpy(skbn->data, skb->data, pkt_len);
- /* swap */
- skbt = skb;
- skb = skbn;
- skbn = skbt;
- }
- } else
- skbn = dev_alloc_skb(ENET_RX_FRSIZE);
-
- if (skbn != NULL) {
- skb->dev = dev;
- skb_put(skb, pkt_len); /* Make room */
- skb->protocol = eth_type_trans(skb, dev);
- received++;
- if (!fpi->use_napi)
- netif_rx(skb);
- else
- netif_receive_skb(skb);
- } else {
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s Memory squeeze, dropping packet.\n",
- dev->name);
- fep->stats.rx_dropped++;
- skbn = skb;
- }
- }
-
- fep->rx_skbuff[curidx] = skbn;
- CBDW_BUFADDR(bdp, dma_map_single(NULL, skbn->data,
- L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
- DMA_FROM_DEVICE));
- CBDW_DATLEN(bdp, 0);
- CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
-
- /*
- * Update BD pointer to next entry.
- */
- if ((sc & BD_ENET_RX_WRAP) == 0)
- bdp++;
- else
- bdp = fep->rx_bd_base;
-
- /*
- * Doing this here will keep the FEC running while we process
- * incoming frames. On a heavily loaded network, we should be
- * able to keep up at the expense of system resources.
- */
- FW(fecp, r_des_active, 0x01000000);
- }
-
- fep->cur_rx = bdp;
-
- if (fpi->use_napi) {
- dev->quota -= received;
- *budget -= received;
-
- if (rx_work_limit < 0)
- return 1; /* not done */
-
- /* done */
- netif_rx_complete(dev);
-
- /* enable RX interrupt bits */
- FS(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB);
- }
-
- return 0;
-}
-
-static void fec_enet_tx(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- cbd_t *bdp;
- struct sk_buff *skb;
- int dirtyidx, do_wake;
- __u16 sc;
-
- spin_lock(&fep->lock);
- bdp = fep->dirty_tx;
-
- do_wake = 0;
- while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
-
- dirtyidx = bdp - fep->tx_bd_base;
-
- if (fep->tx_free == fep->tx_ring)
- break;
-
- skb = fep->tx_skbuff[dirtyidx];
-
- /*
- * Check for errors.
- */
- if (sc & (BD_ENET_TX_HB | BD_ENET_TX_LC |
- BD_ENET_TX_RL | BD_ENET_TX_UN | BD_ENET_TX_CSL)) {
- fep->stats.tx_errors++;
- if (sc & BD_ENET_TX_HB) /* No heartbeat */
- fep->stats.tx_heartbeat_errors++;
- if (sc & BD_ENET_TX_LC) /* Late collision */
- fep->stats.tx_window_errors++;
- if (sc & BD_ENET_TX_RL) /* Retrans limit */
- fep->stats.tx_aborted_errors++;
- if (sc & BD_ENET_TX_UN) /* Underrun */
- fep->stats.tx_fifo_errors++;
- if (sc & BD_ENET_TX_CSL) /* Carrier lost */
- fep->stats.tx_carrier_errors++;
- } else
- fep->stats.tx_packets++;
-
- if (sc & BD_ENET_TX_READY)
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s HEY! Enet xmit interrupt and TX_READY.\n",
- dev->name);
-
- /*
- * Deferred means some collisions occurred during transmit,
- * but we eventually sent the packet OK.
- */
- if (sc & BD_ENET_TX_DEF)
- fep->stats.collisions++;
-
- /*
- * Free the sk buffer associated with this last transmit.
- */
- dev_kfree_skb_irq(skb);
- fep->tx_skbuff[dirtyidx] = NULL;
-
- /*
- * Update pointer to next buffer descriptor to be transmitted.
- */
- if ((sc & BD_ENET_TX_WRAP) == 0)
- bdp++;
- else
- bdp = fep->tx_bd_base;
-
- /*
- * Since we have freed up a buffer, the ring is no longer
- * full.
- */
- if (!fep->tx_free++)
- do_wake = 1;
- }
-
- fep->dirty_tx = bdp;
-
- spin_unlock(&fep->lock);
-
- if (do_wake && netif_queue_stopped(dev))
- netif_wake_queue(dev);
-}
-
-/*
- * The interrupt handler.
- * This is called from the MPC core interrupt.
- */
-static irqreturn_t
-fec_enet_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *dev = dev_id;
- struct fec_enet_private *fep;
- const struct fec_platform_info *fpi;
- fec_t *fecp;
- __u32 int_events;
- __u32 int_events_napi;
-
- if (unlikely(dev == NULL))
- return IRQ_NONE;
-
- fep = netdev_priv(dev);
- fecp = fep->fecp;
- fpi = fep->fpi;
-
- /*
- * Get the interrupt events that caused us to be here.
- */
- while ((int_events = FR(fecp, ievent) & FR(fecp, imask)) != 0) {
-
- if (!fpi->use_napi)
- FW(fecp, ievent, int_events);
- else {
- int_events_napi = int_events & ~(FEC_ENET_RXF | FEC_ENET_RXB);
- FW(fecp, ievent, int_events_napi);
- }
-
- if ((int_events & (FEC_ENET_HBERR | FEC_ENET_BABR |
- FEC_ENET_BABT | FEC_ENET_EBERR)) != 0)
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s FEC ERROR(s) 0x%x\n",
- dev->name, int_events);
-
- if ((int_events & FEC_ENET_RXF) != 0) {
- if (!fpi->use_napi)
- fec_enet_rx_common(dev, NULL);
- else {
- if (netif_rx_schedule_prep(dev)) {
- /* disable rx interrupts */
- FC(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB);
- __netif_rx_schedule(dev);
- } else {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s driver bug! interrupt while in poll!\n",
- dev->name);
- FC(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB);
- }
- }
- }
-
- if ((int_events & FEC_ENET_TXF) != 0)
- fec_enet_tx(dev);
- }
-
- return IRQ_HANDLED;
-}
-
-/* This interrupt occurs when the PHY detects a link change. */
-static irqreturn_t
-fec_mii_link_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *dev = dev_id;
- struct fec_enet_private *fep;
- const struct fec_platform_info *fpi;
-
- if (unlikely(dev == NULL))
- return IRQ_NONE;
-
- fep = netdev_priv(dev);
- fpi = fep->fpi;
-
- if (!fpi->use_mdio)
- return IRQ_NONE;
-
- /*
- * Acknowledge the interrupt if possible. If we have not
- * found the PHY yet we can't process or acknowledge the
- * interrupt now. Instead we ignore this interrupt for now,
- * which we can do since it is edge triggered. It will be
- * acknowledged later by fec_enet_open().
- */
- if (!fep->phy)
- return IRQ_NONE;
-
- fec_mii_ack_int(dev);
- fec_mii_link_status_change_check(dev, 0);
-
- return IRQ_HANDLED;
-}
-
-
-/**********************************************************************************/
-
-static int fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- cbd_t *bdp;
- int curidx;
- unsigned long flags;
-
- spin_lock_irqsave(&fep->tx_lock, flags);
-
- /*
- * Fill in a Tx ring entry
- */
- bdp = fep->cur_tx;
-
- if (!fep->tx_free || (CBDR_SC(bdp) & BD_ENET_TX_READY)) {
- netif_stop_queue(dev);
- spin_unlock_irqrestore(&fep->tx_lock, flags);
-
- /*
- * Ooops. All transmit buffers are full. Bail out.
- * This should not happen, since the tx queue should be stopped.
- */
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s tx queue full!.\n", dev->name);
- return 1;
- }
-
- curidx = bdp - fep->tx_bd_base;
- /*
- * Clear all of the status flags.
- */
- CBDC_SC(bdp, BD_ENET_TX_STATS);
-
- /*
- * Save skb pointer.
- */
- fep->tx_skbuff[curidx] = skb;
-
- fep->stats.tx_bytes += skb->len;
-
- /*
- * Push the data cache so the CPM does not get stale memory data.
- */
- CBDW_BUFADDR(bdp, dma_map_single(NULL, skb->data,
- skb->len, DMA_TO_DEVICE));
- CBDW_DATLEN(bdp, skb->len);
-
- dev->trans_start = jiffies;
-
- /*
- * If this was the last BD in the ring, start at the beginning again.
- */
- if ((CBDR_SC(bdp) & BD_ENET_TX_WRAP) == 0)
- fep->cur_tx++;
- else
- fep->cur_tx = fep->tx_bd_base;
-
- if (!--fep->tx_free)
- netif_stop_queue(dev);
-
- /*
- * Trigger transmission start
- */
- CBDS_SC(bdp, BD_ENET_TX_READY | BD_ENET_TX_INTR |
- BD_ENET_TX_LAST | BD_ENET_TX_TC);
- FW(fecp, x_des_active, 0x01000000);
-
- spin_unlock_irqrestore(&fep->tx_lock, flags);
-
- return 0;
-}
-
-static void fec_timeout(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fep->stats.tx_errors++;
-
- if (fep->tx_free)
- netif_wake_queue(dev);
-
- /* check link status again */
- fec_mii_link_status_change_check(dev, 0);
-}
-
-static int fec_enet_open(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
- unsigned long flags;
-
- /* Install our interrupt handler. */
- if (request_irq(fpi->fec_irq, fec_enet_interrupt, 0, "fec", dev) != 0) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s Could not allocate FEC IRQ!", dev->name);
- return -EINVAL;
- }
-
- /* Install our phy interrupt handler */
- if (fpi->phy_irq != -1 &&
- request_irq(fpi->phy_irq, fec_mii_link_interrupt, 0, "fec-phy",
- dev) != 0) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s Could not allocate PHY IRQ!", dev->name);
- free_irq(fpi->fec_irq, dev);
- return -EINVAL;
- }
-
- if (fpi->use_mdio) {
- fec_mii_startup(dev);
- netif_carrier_off(dev);
- fec_mii_link_status_change_check(dev, 1);
- } else {
- spin_lock_irqsave(&fep->lock, flags);
- fec_restart(dev, 1, 100); /* XXX this sucks */
- spin_unlock_irqrestore(&fep->lock, flags);
-
- netif_carrier_on(dev);
- netif_start_queue(dev);
- }
- return 0;
-}
-
-static int fec_enet_close(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
- unsigned long flags;
-
- netif_stop_queue(dev);
- netif_carrier_off(dev);
-
- if (fpi->use_mdio)
- fec_mii_shutdown(dev);
-
- spin_lock_irqsave(&fep->lock, flags);
- fec_stop(dev);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- /* release any irqs */
- if (fpi->phy_irq != -1)
- free_irq(fpi->phy_irq, dev);
- free_irq(fpi->fec_irq, dev);
-
- return 0;
-}
-
-static struct net_device_stats *fec_enet_get_stats(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- return &fep->stats;
-}
-
-static int fec_enet_poll(struct net_device *dev, int *budget)
-{
- return fec_enet_rx_common(dev, budget);
-}
-
-/*************************************************************************/
-
-static void fec_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- strcpy(info->driver, DRV_MODULE_NAME);
- strcpy(info->version, DRV_MODULE_VERSION);
-}
-
-static int fec_get_regs_len(struct net_device *dev)
-{
- return sizeof(fec_t);
-}
-
-static void fec_get_regs(struct net_device *dev, struct ethtool_regs *regs,
- void *p)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- unsigned long flags;
-
- if (regs->len < sizeof(fec_t))
- return;
-
- regs->version = 0;
- spin_lock_irqsave(&fep->lock, flags);
- memcpy_fromio(p, fep->fecp, sizeof(fec_t));
- spin_unlock_irqrestore(&fep->lock, flags);
-}
-
-static int fec_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&fep->lock, flags);
- rc = mii_ethtool_gset(&fep->mii_if, cmd);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- return rc;
-}
-
-static int fec_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&fep->lock, flags);
- rc = mii_ethtool_sset(&fep->mii_if, cmd);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- return rc;
-}
-
-static int fec_nway_reset(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- return mii_nway_restart(&fep->mii_if);
-}
-
-static __u32 fec_get_msglevel(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- return fep->msg_enable;
-}
-
-static void fec_set_msglevel(struct net_device *dev, __u32 value)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fep->msg_enable = value;
-}
-
-static struct ethtool_ops fec_ethtool_ops = {
- .get_drvinfo = fec_get_drvinfo,
- .get_regs_len = fec_get_regs_len,
- .get_settings = fec_get_settings,
- .set_settings = fec_set_settings,
- .nway_reset = fec_nway_reset,
- .get_link = ethtool_op_get_link,
- .get_msglevel = fec_get_msglevel,
- .set_msglevel = fec_set_msglevel,
- .get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = ethtool_op_set_tx_csum, /* local! */
- .get_sg = ethtool_op_get_sg,
- .set_sg = ethtool_op_set_sg,
- .get_regs = fec_get_regs,
-};
-
-static int fec_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&rq->ifr_data;
- unsigned long flags;
- int rc;
-
- if (!netif_running(dev))
- return -EINVAL;
-
- spin_lock_irqsave(&fep->lock, flags);
- rc = generic_mii_ioctl(&fep->mii_if, mii, cmd, NULL);
- spin_unlock_irqrestore(&fep->lock, flags);
- return rc;
-}
-
-int fec_8xx_init_one(const struct fec_platform_info *fpi,
- struct net_device **devp)
-{
- immap_t *immap = (immap_t *) IMAP_ADDR;
- static int fec_8xx_version_printed = 0;
- struct net_device *dev = NULL;
- struct fec_enet_private *fep = NULL;
- fec_t *fecp = NULL;
- int i;
- int err = 0;
- int registered = 0;
- __u32 siel;
-
- *devp = NULL;
-
- switch (fpi->fec_no) {
- case 0:
- fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec;
- break;
-#ifdef CONFIG_DUET
- case 1:
- fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec2;
- break;
-#endif
- default:
- return -EINVAL;
- }
-
- if (fec_8xx_version_printed++ == 0)
- printk(KERN_INFO "%s", version);
-
- i = sizeof(*fep) + (sizeof(struct sk_buff **) *
- (fpi->rx_ring + fpi->tx_ring));
-
- dev = alloc_etherdev(i);
- if (!dev) {
- err = -ENOMEM;
- goto err;
- }
- SET_MODULE_OWNER(dev);
-
- fep = netdev_priv(dev);
-
- /* partial reset of FEC */
- fec_whack_reset(fecp);
-
- /* point rx_skbuff, tx_skbuff */
- fep->rx_skbuff = (struct sk_buff **)&fep[1];
- fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
-
- fep->fecp = fecp;
- fep->fpi = fpi;
-
- /* init locks */
- spin_lock_init(&fep->lock);
- spin_lock_init(&fep->tx_lock);
-
- /*
- * Set the Ethernet address.
- */
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = fpi->macaddr[i];
-
- fep->ring_base = dma_alloc_coherent(NULL,
- (fpi->tx_ring + fpi->rx_ring) *
- sizeof(cbd_t), &fep->ring_mem_addr,
- GFP_KERNEL);
- if (fep->ring_base == NULL) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s dma alloc failed.\n", dev->name);
- err = -ENOMEM;
- goto err;
- }
-
- /*
- * Set receive and transmit descriptor base.
- */
- fep->rx_bd_base = fep->ring_base;
- fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring;
-
- /* initialize ring size variables */
- fep->tx_ring = fpi->tx_ring;
- fep->rx_ring = fpi->rx_ring;
-
- /* SIU interrupt */
- if (fpi->phy_irq != -1 &&
- (fpi->phy_irq >= SIU_IRQ0 && fpi->phy_irq < SIU_LEVEL7)) {
-
- siel = in_be32(&immap->im_siu_conf.sc_siel);
- if ((fpi->phy_irq & 1) == 0)
- siel |= (0x80000000 >> fpi->phy_irq);
- else
- siel &= ~(0x80000000 >> (fpi->phy_irq & ~1));
- out_be32(&immap->im_siu_conf.sc_siel, siel);
- }
-
- /*
- * The FEC Ethernet specific entries in the device structure.
- */
- dev->open = fec_enet_open;
- dev->hard_start_xmit = fec_enet_start_xmit;
- dev->tx_timeout = fec_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
- dev->stop = fec_enet_close;
- dev->get_stats = fec_enet_get_stats;
- dev->set_multicast_list = fec_set_multicast_list;
- dev->set_mac_address = fec_set_mac_address;
- if (fpi->use_napi) {
- dev->poll = fec_enet_poll;
- dev->weight = fpi->napi_weight;
- }
- dev->ethtool_ops = &fec_ethtool_ops;
- dev->do_ioctl = fec_ioctl;
-
- fep->fec_phy_speed =
- ((((fpi->sys_clk + 4999999) / 2500000) / 2) & 0x3F) << 1;
-
- init_timer(&fep->phy_timer_list);
-
- /* partial reset of FEC so that only MII works */
- FW(fecp, mii_speed, fep->fec_phy_speed);
- FW(fecp, ievent, 0xffc0);
- FW(fecp, ivec, (fpi->fec_irq / 2) << 29);
- FW(fecp, imask, 0);
- FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
-
- netif_carrier_off(dev);
-
- err = register_netdev(dev);
- if (err != 0)
- goto err;
- registered = 1;
-
- if (fpi->use_mdio) {
- fep->mii_if.dev = dev;
- fep->mii_if.mdio_read = fec_mii_read;
- fep->mii_if.mdio_write = fec_mii_write;
- fep->mii_if.phy_id_mask = 0x1f;
- fep->mii_if.reg_num_mask = 0x1f;
- fep->mii_if.phy_id = fec_mii_phy_id_detect(dev);
- }
-
- *devp = dev;
-
- return 0;
-
- err:
- if (dev != NULL) {
- if (fecp != NULL)
- fec_whack_reset(fecp);
-
- if (registered)
- unregister_netdev(dev);
-
- if (fep != NULL) {
- if (fep->ring_base)
- dma_free_coherent(NULL,
- (fpi->tx_ring +
- fpi->rx_ring) *
- sizeof(cbd_t), fep->ring_base,
- fep->ring_mem_addr);
- }
- free_netdev(dev);
- }
- return err;
-}
-
-int fec_8xx_cleanup_one(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- const struct fec_platform_info *fpi = fep->fpi;
-
- fec_whack_reset(fecp);
-
- unregister_netdev(dev);
-
- dma_free_coherent(NULL, (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t),
- fep->ring_base, fep->ring_mem_addr);
-
- free_netdev(dev);
-
- return 0;
-}
-
-/**************************************************************************************/
-/**************************************************************************************/
-/**************************************************************************************/
-
-static int __init fec_8xx_init(void)
-{
- return fec_8xx_platform_init();
-}
-
-static void __exit fec_8xx_cleanup(void)
-{
- fec_8xx_platform_cleanup();
-}
-
-/**************************************************************************************/
-/**************************************************************************************/
-/**************************************************************************************/
-
-module_init(fec_8xx_init);
-module_exit(fec_8xx_cleanup);
+++ /dev/null
-/*
- * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx.
- *
- * Copyright (c) 2003 Intracom S.A.
- * by Pantelis Antoniou <panto@intracom.gr>
- *
- * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com>
- * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se>
- *
- * Released under the GPL
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-
-#include <asm/8xx_immap.h>
-#include <asm/pgtable.h>
-#include <asm/mpc8xx.h>
-#include <asm/irq.h>
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-#include <asm/commproc.h>
-
-/*************************************************/
-
-#include "fec_8xx.h"
-
-/*************************************************/
-
-/* Make MII read/write commands for the FEC.
-*/
-#define mk_mii_read(REG) (0x60020000 | ((REG & 0x1f) << 18))
-#define mk_mii_write(REG, VAL) (0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff))
-#define mk_mii_end 0
-
-/*************************************************/
-
-/* XXX both FECs use the MII interface of FEC1 */
-static spinlock_t fec_mii_lock = SPIN_LOCK_UNLOCKED;
-
-#define FEC_MII_LOOPS 10000
-
-int fec_mii_read(struct net_device *dev, int phy_id, int location)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp;
- int i, ret = -1;
- unsigned long flags;
-
- /* XXX MII interface is only connected to FEC1 */
- fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec;
-
- spin_lock_irqsave(&fec_mii_lock, flags);
-
- if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) {
- FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
- FW(fecp, ievent, FEC_ENET_MII);
- }
-
- /* Add PHY address to register command. */
- FW(fecp, mii_speed, fep->fec_phy_speed);
- FW(fecp, mii_data, (phy_id << 23) | mk_mii_read(location));
-
- for (i = 0; i < FEC_MII_LOOPS; i++)
- if ((FR(fecp, ievent) & FEC_ENET_MII) != 0)
- break;
-
- if (i < FEC_MII_LOOPS) {
- FW(fecp, ievent, FEC_ENET_MII);
- ret = FR(fecp, mii_data) & 0xffff;
- }
-
- spin_unlock_irqrestore(&fec_mii_lock, flags);
-
- return ret;
-}
-
-void fec_mii_write(struct net_device *dev, int phy_id, int location, int value)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp;
- unsigned long flags;
- int i;
-
- /* XXX MII interface is only connected to FEC1 */
- fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec;
-
- spin_lock_irqsave(&fec_mii_lock, flags);
-
- if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) {
- FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
- FW(fecp, ievent, FEC_ENET_MII);
- }
-
- /* Add PHY address to register command. */
- FW(fecp, mii_speed, fep->fec_phy_speed); /* always adapt mii speed */
- FW(fecp, mii_data, (phy_id << 23) | mk_mii_write(location, value));
-
- for (i = 0; i < FEC_MII_LOOPS; i++)
- if ((FR(fecp, ievent) & FEC_ENET_MII) != 0)
- break;
-
- if (i < FEC_MII_LOOPS)
- FW(fecp, ievent, FEC_ENET_MII);
-
- spin_unlock_irqrestore(&fec_mii_lock, flags);
-}
-
-/*************************************************/
-
-#ifdef CONFIG_FEC_8XX_GENERIC_PHY
-
-/*
- * Generic PHY support.
- * Should work for all PHYs, but link change is detected by polling
- */
-
-static void generic_timer_callback(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fep->phy_timer_list.expires = jiffies + HZ / 2;
-
- add_timer(&fep->phy_timer_list);
-
- fec_mii_link_status_change_check(dev, 0);
-}
-
-static void generic_startup(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fep->phy_timer_list.expires = jiffies + HZ / 2; /* every 500ms */
- fep->phy_timer_list.data = (unsigned long)dev;
- fep->phy_timer_list.function = generic_timer_callback;
- add_timer(&fep->phy_timer_list);
-}
-
-static void generic_shutdown(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- del_timer_sync(&fep->phy_timer_list);
-}
-
-#endif
-
-#ifdef CONFIG_FEC_8XX_DM9161_PHY
-
-/* ------------------------------------------------------------------------- */
-/* The Davicom DM9161 is used on the NETTA board */
-
-/* register definitions */
-
-#define MII_DM9161_ACR 16 /* Aux. Config Register */
-#define MII_DM9161_ACSR 17 /* Aux. Config/Status Register */
-#define MII_DM9161_10TCSR 18 /* 10BaseT Config/Status Reg. */
-#define MII_DM9161_INTR 21 /* Interrupt Register */
-#define MII_DM9161_RECR 22 /* Receive Error Counter Reg. */
-#define MII_DM9161_DISCR 23 /* Disconnect Counter Register */
-
-static void dm9161_startup(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0000);
-}
-
-static void dm9161_ack_int(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_read(dev, fep->mii_if.phy_id, MII_DM9161_INTR);
-}
-
-static void dm9161_shutdown(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0f00);
-}
-
-#endif
-
-/**********************************************************************************/
-
-static const struct phy_info phy_info[] = {
-#ifdef CONFIG_FEC_8XX_DM9161_PHY
- {
- .id = 0x00181b88,
- .name = "DM9161",
- .startup = dm9161_startup,
- .ack_int = dm9161_ack_int,
- .shutdown = dm9161_shutdown,
- },
-#endif
-#ifdef CONFIG_FEC_8XX_GENERIC_PHY
- {
- .id = 0,
- .name = "GENERIC",
- .startup = generic_startup,
- .shutdown = generic_shutdown,
- },
-#endif
-};
-
-/**********************************************************************************/
-
-int fec_mii_phy_id_detect(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
- int i, r, start, end, phytype, physubtype;
- const struct phy_info *phy;
- int phy_hwid, phy_id;
-
- /* if no MDIO */
- if (fpi->use_mdio == 0)
- return -1;
-
- phy_hwid = -1;
- fep->phy = NULL;
-
- /* auto-detect? */
- if (fpi->phy_addr == -1) {
- start = 0;
- end = 32;
- } else { /* direct */
- start = fpi->phy_addr;
- end = start + 1;
- }
-
- for (phy_id = start; phy_id < end; phy_id++) {
- r = fec_mii_read(dev, phy_id, MII_PHYSID1);
- if (r == -1 || (phytype = (r & 0xffff)) == 0xffff)
- continue;
- r = fec_mii_read(dev, phy_id, MII_PHYSID2);
- if (r == -1 || (physubtype = (r & 0xffff)) == 0xffff)
- continue;
- phy_hwid = (phytype << 16) | physubtype;
- if (phy_hwid != -1)
- break;
- }
-
- if (phy_hwid == -1) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s No PHY detected!\n", dev->name);
- return -1;
- }
-
- for (i = 0, phy = phy_info; i < sizeof(phy_info) / sizeof(phy_info[0]);
- i++, phy++)
- if (phy->id == (phy_hwid >> 4) || phy->id == 0)
- break;
-
- if (i >= sizeof(phy_info) / sizeof(phy_info[0])) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s PHY id 0x%08x is not supported!\n",
- dev->name, phy_hwid);
- return -1;
- }
-
- fep->phy = phy;
-
- printk(KERN_INFO DRV_MODULE_NAME
- ": %s Phy @ 0x%x, type %s (0x%08x)\n",
- dev->name, phy_id, fep->phy->name, phy_hwid);
-
- return phy_id;
-}
-
-void fec_mii_startup(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
-
- if (!fpi->use_mdio || fep->phy == NULL)
- return;
-
- if (fep->phy->startup == NULL)
- return;
-
- (*fep->phy->startup) (dev);
-}
-
-void fec_mii_shutdown(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
-
- if (!fpi->use_mdio || fep->phy == NULL)
- return;
-
- if (fep->phy->shutdown == NULL)
- return;
-
- (*fep->phy->shutdown) (dev);
-}
-
-void fec_mii_ack_int(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
-
- if (!fpi->use_mdio || fep->phy == NULL)
- return;
-
- if (fep->phy->ack_int == NULL)
- return;
-
- (*fep->phy->ack_int) (dev);
-}
-
-/* helper function */
-static int mii_negotiated(struct mii_if_info *mii)
-{
- int advert, lpa, val;
-
- if (!mii_link_ok(mii))
- return 0;
-
- val = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_BMSR);
- if ((val & BMSR_ANEGCOMPLETE) == 0)
- return 0;
-
- advert = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_ADVERTISE);
- lpa = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_LPA);
-
- return mii_nway_result(advert & lpa);
-}
-
-void fec_mii_link_status_change_check(struct net_device *dev, int init_media)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- unsigned int media;
- unsigned long flags;
-
- if (mii_check_media(&fep->mii_if, netif_msg_link(fep), init_media) == 0)
- return;
-
- media = mii_negotiated(&fep->mii_if);
-
- if (netif_carrier_ok(dev)) {
- spin_lock_irqsave(&fep->lock, flags);
- fec_restart(dev, !!(media & ADVERTISE_FULL),
- (media & (ADVERTISE_100FULL | ADVERTISE_100HALF)) ?
- 100 : 10);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- netif_start_queue(dev);
- } else {
- netif_stop_queue(dev);
-
- spin_lock_irqsave(&fep->lock, flags);
- fec_stop(dev);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- }
-}
+++ /dev/null
-/*
-** *************************************************************************
-**
-**
-** R C I F . H
-**
-**
-** RedCreek InterFace include file.
-**
-** ---------------------------------------------------------------------
-** --- Copyright (c) 1998-1999, RedCreek Communications Inc. ---
-** --- All rights reserved. ---
-** ---------------------------------------------------------------------
-**
-** File Description:
-**
-** Header file private ioctl commands.
-**
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-** GNU General Public License for more details.
-
-** You should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-** *************************************************************************
-*/
-
-#ifndef RCIF_H
-#define RCIF_H
-
-/* The following protocol revision # should be incremented every time
- a new protocol or new structures are used in this file. */
-int USER_PROTOCOL_REV = 2; /* used to track different protocol revisions */
-
-/* define a single TCB & buffer */
-typedef struct { /* a single buffer */
- U32 context; /* context */
- U32 scount; /* segment count */
- U32 size; /* segment size */
- U32 addr; /* segment physical address */
-} __attribute__ ((packed))
- singleB, *psingleB;
-typedef struct { /* a single TCB */
- /*
- ** +-----------------------+
- ** | 1 | one buffer in the TCB
- ** +-----------------------+
- ** | <user's Context> | user's buffer reference
- ** +-----------------------+
- ** | 1 | one segment buffer
- ** +-----------------------+ _
- ** | <buffer size> | size \
- ** +-----------------------+ \ segment descriptor
- ** | <physical address> | physical address of buffer /
- ** +-----------------------+ _/
- */
- U32 bcount; /* buffer count */
- singleB b; /* buffer */
-
-} __attribute__ ((packed))
- singleTCB, *psingleTCB;
-
-/*
- When adding new entries, please add all 5 related changes, since
- it helps keep everything consistent:
- 1) User structure entry
- 2) User data entry
- 3) Structure short-cut entry
- 4) Data short-cut entry
- 5) Command identifier entry
-
- For Example ("GETSPEED"):
- 1) struct RCgetspeed_tag { U32 LinkSpeedCode; } RCgetspeed;
- 2) struct RCgetspeed_tag *getspeed;
- 3) #define RCUS_GETSPEED data.RCgetspeed;
- 4) #define RCUD_GETSPEED _RC_user_data.getspeed
- 5) #define RCUC_GETSPEED 0x02
-
- Notes for the "GETSPEED" entry, above:
- 1) RCgetspeed - RC{name}
- RCgetspeed_tag - RC{name}_tag
- LinkSpeedCode - create any structure format desired (not too large,
- since memory will be unioned with all other entries)
- 2) RCgetspeed_tag - RC{name}_tag chosen in #1
- getspeed - arbitrary name (ptr to structure in #1)
- 3) RCUS_GETSPEED - RCUS_{NAME} ("NAME" & "name" do not have to the same)
- data.RCgetspeed - data.RC{name} ("RC{name}" from #1)
- 4) RCUD_GETSPEED - _RC_user_data.getspeed ("getspeed" from #2)
- 5) RCUC_GETSPEED - unique hex identifier entry.
-*/
-
-typedef struct RC_user_tag RCuser_struct;
-
-/* 1) User structure entry */
-struct RC_user_tag {
- int cmd;
- union {
- /* GETINFO structure */
- struct RCgetinfo_tag {
- unsigned long int mem_start;
- unsigned long int mem_end;
- unsigned long int base_addr;
- unsigned char irq;
- unsigned char dma;
- unsigned char port;
- } RCgetinfo; /* <---- RCgetinfo */
-
- /* GETSPEED structure */
- struct RCgetspeed_tag {
- U32 LinkSpeedCode;
- } RCgetspeed; /* <---- RCgetspeed */
-
- /* SETSPEED structure */
- struct RCsetspeed_tag {
- U16 LinkSpeedCode;
- } RCsetspeed; /* <---- RCsetspeed */
-
- /* GETPROM structure */
- struct RCgetprom_tag {
- U32 PromMode;
- } RCgetprom; /* <---- RCgetprom */
-
- /* SETPROM structure */
- struct RCsetprom_tag {
- U16 PromMode;
- } RCsetprom; /* <---- RCsetprom */
-
- /* GETBROADCAST structure */
- struct RCgetbroadcast_tag {
- U32 BroadcastMode;
- } RCgetbroadcast; /* <---- RCgetbroadcast */
-
- /* SETBROADCAST structure */
- struct RCsetbroadcast_tag {
- U16 BroadcastMode;
- } RCsetbroadcast; /* <---- RCsetbroadcast */
-
- /* GETFIRMWAREVER structure */
-#define FirmStringLen 80
- struct RCgetfwver_tag {
- U8 FirmString[FirmStringLen];
- } RCgetfwver; /* <---- RCgetfwver */
-
- /* GETIPANDMASK structure */
- struct RCgetipnmask_tag {
- U32 IpAddr;
- U32 NetMask;
- } RCgetipandmask; /* <---- RCgetipandmask */
-
- /* SETIPANDMASK structure */
- struct RCsetipnmask_tag {
- U32 IpAddr;
- U32 NetMask;
- } RCsetipandmask; /* <---- RCsetipandmask */
-
- /* GETMAC structure */
-#define MAC_SIZE 10
- struct RCgetmac_tag {
- U8 mac[MAC_SIZE];
- } RCgetmac; /* <---- RCgetmac */
-
- /* SETMAC structure */
- struct RCsetmac_tag {
- U8 mac[MAC_SIZE];
- } RCsetmac; /* <---- RCsetmac */
-
- /* GETLINKSTATUS structure */
- struct RCgetlnkstatus_tag {
- U32 ReturnStatus;
- } RCgetlnkstatus; /* <---- RCgetlnkstatus */
-
- /* GETLINKSTATISTICS structure */
- struct RCgetlinkstats_tag {
- RCLINKSTATS StatsReturn;
- } RCgetlinkstats; /* <---- RCgetlinkstats */
-
- /* DEFAULT structure (when no command was recognized) */
- struct RCdefault_tag {
- int rc;
- } RCdefault; /* <---- RCdefault */
-
- } data;
-
-}; /* struct RC_user_tag { ... } */
-
-/* 2) User data entry */
-/* RCUD = RedCreek User Data */
-union RC_user_data_tag { /* structure tags used are taken from RC_user_tag structure above */
- struct RCgetinfo_tag *getinfo;
- struct RCgetspeed_tag *getspeed;
- struct RCgetprom_tag *getprom;
- struct RCgetbroadcast_tag *getbroadcast;
- struct RCgetfwver_tag *getfwver;
- struct RCgetipnmask_tag *getipandmask;
- struct RCgetmac_tag *getmac;
- struct RCgetlnkstatus_tag *getlinkstatus;
- struct RCgetlinkstats_tag *getlinkstatistics;
- struct RCdefault_tag *rcdefault;
- struct RCsetspeed_tag *setspeed;
- struct RCsetprom_tag *setprom;
- struct RCsetbroadcast_tag *setbroadcast;
- struct RCsetipnmask_tag *setipandmask;
- struct RCsetmac_tag *setmac;
-} _RC_user_data; /* declare as a global, so the defines below will work */
-
-/* 3) Structure short-cut entry */
-/* define structure short-cuts *//* structure names are taken from RC_user_tag structure above */
-#define RCUS_GETINFO data.RCgetinfo;
-#define RCUS_GETSPEED data.RCgetspeed;
-#define RCUS_GETPROM data.RCgetprom;
-#define RCUS_GETBROADCAST data.RCgetbroadcast;
-#define RCUS_GETFWVER data.RCgetfwver;
-#define RCUS_GETIPANDMASK data.RCgetipandmask;
-#define RCUS_GETMAC data.RCgetmac;
-#define RCUS_GETLINKSTATUS data.RCgetlnkstatus;
-#define RCUS_GETLINKSTATISTICS data.RCgetlinkstats;
-#define RCUS_DEFAULT data.RCdefault;
-#define RCUS_SETSPEED data.RCsetspeed;
-#define RCUS_SETPROM data.RCsetprom;
-#define RCUS_SETBROADCAST data.RCsetbroadcast;
-#define RCUS_SETIPANDMASK data.RCsetipandmask;
-#define RCUS_SETMAC data.RCsetmac;
-
-/* 4) Data short-cut entry */
-/* define data short-cuts *//* pointer names are from RC_user_data_tag union (just below RC_user_tag) */
-#define RCUD_GETINFO _RC_user_data.getinfo
-#define RCUD_GETSPEED _RC_user_data.getspeed
-#define RCUD_GETPROM _RC_user_data.getprom
-#define RCUD_GETBROADCAST _RC_user_data.getbroadcast
-#define RCUD_GETFWVER _RC_user_data.getfwver
-#define RCUD_GETIPANDMASK _RC_user_data.getipandmask
-#define RCUD_GETMAC _RC_user_data.getmac
-#define RCUD_GETLINKSTATUS _RC_user_data.getlinkstatus
-#define RCUD_GETLINKSTATISTICS _RC_user_data.getlinkstatistics
-#define RCUD_DEFAULT _RC_user_data.rcdefault
-#define RCUD_SETSPEED _RC_user_data.setspeed
-#define RCUD_SETPROM _RC_user_data.setprom
-#define RCUD_SETBROADCAST _RC_user_data.setbroadcast
-#define RCUD_SETIPANDMASK _RC_user_data.setipandmask
-#define RCUD_SETMAC _RC_user_data.setmac
-
-/* 5) Command identifier entry */
-/* define command identifiers */
-#define RCUC_GETINFO 0x01
-#define RCUC_GETSPEED 0x02
-#define RCUC_GETFWVER 0x03
-#define RCUC_GETIPANDMASK 0x04
-#define RCUC_GETMAC 0x05
-#define RCUC_GETLINKSTATUS 0x06
-#define RCUC_GETLINKSTATISTICS 0x07
-#define RCUC_GETPROM 0x14
-#define RCUC_GETBROADCAST 0x15
-#define RCUC_DEFAULT 0xff
-#define RCUC_SETSPEED 0x08
-#define RCUC_SETIPANDMASK 0x09
-#define RCUC_SETMAC 0x0a
-#define RCUC_SETPROM 0x16
-#define RCUC_SETBROADCAST 0x17
-
-/* define ioctl commands to use, when talking to RC 45/PCI driver */
-#define RCU_PROTOCOL_REV SIOCDEVPRIVATE
-#define RCU_COMMAND SIOCDEVPRIVATE+1
-
-/*
- Intended use for the above defines is shown below (GETINFO, as this example):
-
- RCuser_struct RCuser; // declare RCuser structure
- struct ifreq ifr; // declare an interface request structure
-
- RCuser.cmd = RCUC_GETINFO; // set user command to GETINFO
- ifr->ifr_data = (caddr_t) &RCuser; // set point to user structure
-
- sock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); // get a socket
- ioctl(sock, RCU_COMMAND, &ifr); // do ioctl on socket
-
- RCUD_GETINFO = &RCuser.RCUS_GETINFO; // set data pointer for GETINFO
-
- // print results
- printf("memory 0x%lx-0x%lx, base address 0x%x, irq 0x%x\n",
- RCUD_GETINFO->mem_start, RCUD_GETINFO->mem_end,
- RCUD_GETINFO->base_addr, RCUD_GETINFO->irq);
-*/
-
-#endif /* RCIF_H */
+++ /dev/null
-/*
-** *************************************************************************
-**
-**
-** R C L A N M T L . C $Revision: 6 $
-**
-**
-** RedCreek I2O LAN Message Transport Layer program module.
-**
-** ---------------------------------------------------------------------
-** --- Copyright (c) 1997-1999, RedCreek Communications Inc. ---
-** --- All rights reserved. ---
-** ---------------------------------------------------------------------
-**
-** File Description:
-**
-** Host side I2O (Intelligent I/O) LAN message transport layer.
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-** GNU General Public License for more details.
-
-** You should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** 1998-1999, LAN API was modified and enhanced by Alice Hennessy.
-**
-** Sometime in 1997, LAN API was written from scratch by Wendell Nichols.
-** *************************************************************************
-*/
-
-#define DEBUG 1
-
-#define RC_LINUX_MODULE
-#include "rclanmtl.h"
-
- /* RedCreek LAN device Target ID */
-#define RC_LAN_TARGET_ID 0x10
- /* RedCreek's OSM default LAN receive Initiator */
-#define DEFAULT_RECV_INIT_CONTEXT 0xA17
-
-/*
-** I2O message structures
-*/
-
-#define I2O_TID_SZ 12
-#define I2O_FUNCTION_SZ 8
-
-/* Transaction Reply Lists (TRL) Control Word structure */
-
-#define I2O_TRL_FLAGS_SINGLE_FIXED_LENGTH 0x00
-#define I2O_TRL_FLAGS_SINGLE_VARIABLE_LENGTH 0x40
-#define I2O_TRL_FLAGS_MULTIPLE_FIXED_LENGTH 0x80
-
-/* LAN Class specific functions */
-
-#define I2O_LAN_PACKET_SEND 0x3B
-#define I2O_LAN_SDU_SEND 0x3D
-#define I2O_LAN_RECEIVE_POST 0x3E
-#define I2O_LAN_RESET 0x35
-#define I2O_LAN_SHUTDOWN 0x37
-
-/* Private Class specfic function */
-#define I2O_PRIVATE 0xFF
-
-/* I2O Executive Function Codes. */
-
-#define I2O_EXEC_ADAPTER_ASSIGN 0xB3
-#define I2O_EXEC_ADAPTER_READ 0xB2
-#define I2O_EXEC_ADAPTER_RELEASE 0xB5
-#define I2O_EXEC_BIOS_INFO_SET 0xA5
-#define I2O_EXEC_BOOT_DEVICE_SET 0xA7
-#define I2O_EXEC_CONFIG_VALIDATE 0xBB
-#define I2O_EXEC_CONN_SETUP 0xCA
-#define I2O_EXEC_DEVICE_ASSIGN 0xB7
-#define I2O_EXEC_DEVICE_RELEASE 0xB9
-#define I2O_EXEC_HRT_GET 0xA8
-#define I2O_EXEC_IOP_CLEAR 0xBE
-#define I2O_EXEC_IOP_CONNECT 0xC9
-#define I2O_EXEC_IOP_RESET 0xBD
-#define I2O_EXEC_LCT_NOTIFY 0xA2
-#define I2O_EXEC_OUTBOUND_INIT 0xA1
-#define I2O_EXEC_PATH_ENABLE 0xD3
-#define I2O_EXEC_PATH_QUIESCE 0xC5
-#define I2O_EXEC_PATH_RESET 0xD7
-#define I2O_EXEC_STATIC_MF_CREATE 0xDD
-#define I2O_EXEC_STATIC_MF_RELEASE 0xDF
-#define I2O_EXEC_STATUS_GET 0xA0
-#define I2O_EXEC_SW_DOWNLOAD 0xA9
-#define I2O_EXEC_SW_UPLOAD 0xAB
-#define I2O_EXEC_SW_REMOVE 0xAD
-#define I2O_EXEC_SYS_ENABLE 0xD1
-#define I2O_EXEC_SYS_MODIFY 0xC1
-#define I2O_EXEC_SYS_QUIESCE 0xC3
-#define I2O_EXEC_SYS_TAB_SET 0xA3
-
- /* Init Outbound Q status */
-#define I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS 0x01
-#define I2O_EXEC_OUTBOUND_INIT_REJECTED 0x02
-#define I2O_EXEC_OUTBOUND_INIT_FAILED 0x03
-#define I2O_EXEC_OUTBOUND_INIT_COMPLETE 0x04
-
-#define I2O_UTIL_NOP 0x00
-
-/* I2O Get Status State values */
-
-#define I2O_IOP_STATE_INITIALIZING 0x01
-#define I2O_IOP_STATE_RESET 0x02
-#define I2O_IOP_STATE_HOLD 0x04
-#define I2O_IOP_STATE_READY 0x05
-#define I2O_IOP_STATE_OPERATIONAL 0x08
-#define I2O_IOP_STATE_FAILED 0x10
-#define I2O_IOP_STATE_FAULTED 0x11
-
-/* Defines for Request Status Codes: Table 3-1 Reply Status Codes. */
-
-#define I2O_REPLY_STATUS_SUCCESS 0x00
-#define I2O_REPLY_STATUS_ABORT_DIRTY 0x01
-#define I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER 0x02
-#define I2O_REPLY_STATUS_ABORT_PARTIAL_TRANSFER 0x03
-#define I2O_REPLY_STATUS_ERROR_DIRTY 0x04
-#define I2O_REPLY_STATUS_ERROR_NO_DATA_TRANSFER 0x05
-#define I2O_REPLY_STATUS_ERROR_PARTIAL_TRANSFER 0x06
-#define I2O_REPLY_STATUS_PROCESS_ABORT_DIRTY 0x07
-#define I2O_REPLY_STATUS_PROCESS_ABORT_NO_DATA_TRANSFER 0x08
-#define I2O_REPLY_STATUS_PROCESS_ABORT_PARTIAL_TRANSFER 0x09
-#define I2O_REPLY_STATUS_TRANSACTION_ERROR 0x0A
-#define I2O_REPLY_STATUS_PROGRESS_REPORT 0x80
-
-/* DetailedStatusCode defines for ALL messages: Table 3-2 Detailed Status Codes.*/
-
-#define I2O_DETAIL_STATUS_SUCCESS 0x0000
-#define I2O_DETAIL_STATUS_BAD_KEY 0x0001
-#define I2O_DETAIL_STATUS_CHAIN_BUFFER_TOO_LARGE 0x0002
-#define I2O_DETAIL_STATUS_DEVICE_BUSY 0x0003
-#define I2O_DETAIL_STATUS_DEVICE_LOCKED 0x0004
-#define I2O_DETAIL_STATUS_DEVICE_NOT_AVAILABLE 0x0005
-#define I2O_DETAIL_STATUS_DEVICE_RESET 0x0006
-#define I2O_DETAIL_STATUS_INAPPROPRIATE_FUNCTION 0x0007
-#define I2O_DETAIL_STATUS_INSUFFICIENT_RESOURCE_HARD 0x0008
-#define I2O_DETAIL_STATUS_INSUFFICIENT_RESOURCE_SOFT 0x0009
-#define I2O_DETAIL_STATUS_INVALID_INITIATOR_ADDRESS 0x000A
-#define I2O_DETAIL_STATUS_INVALID_MESSAGE_FLAGS 0x000B
-#define I2O_DETAIL_STATUS_INVALID_OFFSET 0x000C
-#define I2O_DETAIL_STATUS_INVALID_PARAMETER 0x000D
-#define I2O_DETAIL_STATUS_INVALID_REQUEST 0x000E
-#define I2O_DETAIL_STATUS_INVALID_TARGET_ADDRESS 0x000F
-#define I2O_DETAIL_STATUS_MESSAGE_TOO_LARGE 0x0010
-#define I2O_DETAIL_STATUS_MESSAGE_TOO_SMALL 0x0011
-#define I2O_DETAIL_STATUS_MISSING_PARAMETER 0x0012
-#define I2O_DETAIL_STATUS_NO_SUCH_PAGE 0x0013
-#define I2O_DETAIL_STATUS_REPLY_BUFFER_FULL 0x0014
-#define I2O_DETAIL_STATUS_TCL_ERROR 0x0015
-#define I2O_DETAIL_STATUS_TIMEOUT 0x0016
-#define I2O_DETAIL_STATUS_UNKNOWN_ERROR 0x0017
-#define I2O_DETAIL_STATUS_UNKNOWN_FUNCTION 0x0018
-#define I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION 0x0019
-#define I2O_DETAIL_STATUS_UNSUPPORTED_VERSION 0x001A
-
- /* I2O msg header defines for VersionOffset */
-#define I2OMSGVER_1_5 0x0001
-#define SGL_OFFSET_0 I2OMSGVER_1_5
-#define SGL_OFFSET_4 (0x0040 | I2OMSGVER_1_5)
-#define TRL_OFFSET_5 (0x0050 | I2OMSGVER_1_5)
-#define TRL_OFFSET_6 (0x0060 | I2OMSGVER_1_5)
-
- /* I2O msg header defines for MsgFlags */
-#define MSG_STATIC 0x0100
-#define MSG_64BIT_CNTXT 0x0200
-#define MSG_MULTI_TRANS 0x1000
-#define MSG_FAIL 0x2000
-#define MSG_LAST 0x4000
-#define MSG_REPLY 0x8000
-
- /* normal LAN request message MsgFlags and VersionOffset (0x1041) */
-#define LAN_MSG_REQST (MSG_MULTI_TRANS | SGL_OFFSET_4)
-
- /* minimum size msg */
-#define THREE_WORD_MSG_SIZE 0x00030000
-#define FOUR_WORD_MSG_SIZE 0x00040000
-#define FIVE_WORD_MSG_SIZE 0x00050000
-#define SIX_WORD_MSG_SIZE 0x00060000
-#define SEVEN_WORD_MSG_SIZE 0x00070000
-#define EIGHT_WORD_MSG_SIZE 0x00080000
-#define NINE_WORD_MSG_SIZE 0x00090000
-
-/* Special TID Assignments */
-
-#define I2O_IOP_TID 0
-#define I2O_HOST_TID 0xB91
-
- /* RedCreek I2O private message codes */
-#define RC_PRIVATE_GET_MAC_ADDR 0x0001/**/ /* OBSOLETE */
-#define RC_PRIVATE_SET_MAC_ADDR 0x0002
-#define RC_PRIVATE_GET_NIC_STATS 0x0003
-#define RC_PRIVATE_GET_LINK_STATUS 0x0004
-#define RC_PRIVATE_SET_LINK_SPEED 0x0005
-#define RC_PRIVATE_SET_IP_AND_MASK 0x0006
-/* #define RC_PRIVATE_GET_IP_AND_MASK 0x0007 *//* OBSOLETE */
-#define RC_PRIVATE_GET_LINK_SPEED 0x0008
-#define RC_PRIVATE_GET_FIRMWARE_REV 0x0009
-/* #define RC_PRIVATE_GET_MAC_ADDR 0x000A */
-#define RC_PRIVATE_GET_IP_AND_MASK 0x000B
-#define RC_PRIVATE_DEBUG_MSG 0x000C
-#define RC_PRIVATE_REPORT_DRIVER_CAPABILITY 0x000D
-#define RC_PRIVATE_SET_PROMISCUOUS_MODE 0x000e
-#define RC_PRIVATE_GET_PROMISCUOUS_MODE 0x000f
-#define RC_PRIVATE_SET_BROADCAST_MODE 0x0010
-#define RC_PRIVATE_GET_BROADCAST_MODE 0x0011
-
-#define RC_PRIVATE_REBOOT 0x00FF
-
-/* I2O message header */
-typedef struct _I2O_MESSAGE_FRAME {
- U8 VersionOffset;
- U8 MsgFlags;
- U16 MessageSize;
- BF TargetAddress:I2O_TID_SZ;
- BF InitiatorAddress:I2O_TID_SZ;
- BF Function:I2O_FUNCTION_SZ;
- U32 InitiatorContext;
- /* SGL[] */
-} I2O_MESSAGE_FRAME, *PI2O_MESSAGE_FRAME;
-
- /* assumed a 16K minus 256 byte space for outbound queue message frames */
-#define MSG_FRAME_SIZE 512
-#define NMBR_MSG_FRAMES 30
-
- /*
- ** in reserved space right after PAB in host memory is area for returning
- ** values from card
- */
-
-/*
-** typedef NICSTAT
-**
-** Data structure for NIC statistics retruned from PCI card. Data copied from
-** here to user allocated RCLINKSTATS (see rclanmtl.h) structure.
-*/
-typedef struct tag_NicStat {
- unsigned long TX_good;
- unsigned long TX_maxcol;
- unsigned long TX_latecol;
- unsigned long TX_urun;
- unsigned long TX_crs; /* lost carrier sense */
- unsigned long TX_def; /* transmit deferred */
- unsigned long TX_singlecol; /* single collisions */
- unsigned long TX_multcol;
- unsigned long TX_totcol;
- unsigned long Rcv_good;
- unsigned long Rcv_CRCerr;
- unsigned long Rcv_alignerr;
- unsigned long Rcv_reserr; /* rnr'd pkts */
- unsigned long Rcv_orun;
- unsigned long Rcv_cdt;
- unsigned long Rcv_runt;
- unsigned long dump_status; /* last field directly from the chip */
-} NICSTAT, *P_NICSTAT;
-
-#define DUMP_DONE 0x0000A005 /* completed statistical dump */
-#define DUMP_CLEAR 0x0000A007 /* completed stat dump and clear counters */
-
-static volatile int msgFlag;
-
-/* local function prototypes */
-static void ProcessOutboundI2OMsg (PPAB pPab, U32 phyMsgAddr);
-static int FillI2OMsgSGLFromTCB (PU32 pMsg, PRCTCB pXmitCntrlBlock);
-static int GetI2OStatus (PPAB pPab);
-static int SendI2OOutboundQInitMsg (PPAB pPab);
-static int SendEnableSysMsg (PPAB pPab);
-
-/*
-** =========================================================================
-** RCInitI2OMsgLayer()
-**
-** Initialize the RedCreek I2O Module and adapter.
-**
-** Inputs: dev - the devices net_device struct
-** TransmitCallbackFunction - address of transmit callback function
-** ReceiveCallbackFunction - address of receive callback function
-**
-** private message block is allocated by user. It must be in locked pages.
-** p_msgbuf and p_phymsgbuf point to the same location. Must be contigous
-** memory block of a minimum of 16K byte and long word aligned.
-** =========================================================================
-*/
-RC_RETURN
-RCInitI2OMsgLayer (struct net_device *dev,
- PFNTXCALLBACK TransmitCallbackFunction,
- PFNRXCALLBACK ReceiveCallbackFunction,
- PFNCALLBACK RebootCallbackFunction)
-{
- int result;
- PPAB pPab;
- U32 pciBaseAddr = dev->base_addr;
- PDPA pDpa = dev->priv;
- PU8 p_msgbuf = pDpa->msgbuf;
- PU8 p_phymsgbuf = (PU8) pDpa->msgbuf_dma;
-
- dprintk
- ("InitI2O: Adapter:0x%04ux ATU:0x%08ulx msgbuf:%p phymsgbuf:0x%08ulx\n"
- "TransmitCallbackFunction:0x%08ulx ReceiveCallbackFunction:0x%08ulx\n",
- pDpa->id, pciBaseAddr, p_msgbuf, (u32) p_phymsgbuf,
- (u32) TransmitCallbackFunction, (u32) ReceiveCallbackFunction);
-
- /* Check if this interface already initialized - if so, shut it down */
- if (pDpa->pPab != NULL) {
- printk (KERN_WARNING
- "(rcpci45 driver:) pDpa->pPab [%d] != NULL\n",
- pDpa->id);
-/* RCResetLANCard(pDpa->id, 0, (PU32)NULL, (PFNCALLBACK)NULL); */
- pDpa->pPab = NULL;
- }
-
- /* store adapter instance values in adapter block.
- * Adapter block is at beginning of message buffer */
-
- pPab = kmalloc (sizeof (*pPab), GFP_KERNEL);
- if (!pPab) {
- printk (KERN_ERR
- "(rcpci45 driver:) RCInitI2OMsgLayer: Could not allocate memory for PAB struct!\n");
- result = RC_RTN_MALLOC_ERROR;
- goto err_out;
- }
-
- memset (pPab, 0, sizeof (*pPab));
- pDpa->pPab = pPab;
- pPab->p_atu = (PATU) pciBaseAddr;
- pPab->pPci45LinBaseAddr = (PU8) pciBaseAddr;
-
- /* Set outbound message frame addr */
- pPab->outMsgBlockPhyAddr = (U32) p_phymsgbuf;
- pPab->pLinOutMsgBlock = (PU8) p_msgbuf;
-
- /* store callback function addresses */
- pPab->pTransCallbackFunc = TransmitCallbackFunction;
- pPab->pRecvCallbackFunc = ReceiveCallbackFunction;
- pPab->pRebootCallbackFunc = RebootCallbackFunction;
- pPab->pCallbackFunc = (PFNCALLBACK) NULL;
-
- /*
- ** Initialize I2O IOP
- */
- result = GetI2OStatus (pPab);
-
- if (result != RC_RTN_NO_ERROR)
- goto err_out_dealloc;
-
- if (pPab->IOPState == I2O_IOP_STATE_OPERATIONAL) {
- printk (KERN_INFO
- "(rcpci45 driver:) pPab->IOPState == op: resetting adapter\n");
- RCResetLANCard (dev, 0, (PU32) NULL, (PFNCALLBACK) NULL);
- }
-
- result = SendI2OOutboundQInitMsg (pPab);
-
- if (result != RC_RTN_NO_ERROR)
- goto err_out_dealloc;
-
- result = SendEnableSysMsg (pPab);
-
- if (result != RC_RTN_NO_ERROR)
- goto err_out_dealloc;
-
- return RC_RTN_NO_ERROR;
-
- err_out_dealloc:
- kfree (pPab);
- err_out:
- return result;
-}
-
-/*
-** =========================================================================
-** Disable and Enable I2O interrupts. I2O interrupts are enabled at Init time
-** but can be disabled and re-enabled through these two function calls.
-** Packets will still be put into any posted received buffers and packets will
-** be sent through RCI2OSendPacket() functions. Disabling I2O interrupts
-** will prevent hardware interrupt to host even though the outbound I2O msg
-** queue is not emtpy.
-** =========================================================================
-*/
-#define i960_OUT_POST_Q_INT_BIT 0x0008 /* bit set masks interrupts */
-
-RC_RETURN
-RCDisableI2OInterrupts (struct net_device * dev)
-{
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- pPab->p_atu->OutIntMask |= i960_OUT_POST_Q_INT_BIT;
-
- return RC_RTN_NO_ERROR;
-}
-
-RC_RETURN
-RCEnableI2OInterrupts (struct net_device * dev)
-{
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- pPab->p_atu->OutIntMask &= ~i960_OUT_POST_Q_INT_BIT;
-
- return RC_RTN_NO_ERROR;
-
-}
-
-/*
-** =========================================================================
-** RCI2OSendPacket()
-** =========================================================================
-*/
-RC_RETURN
-RCI2OSendPacket (struct net_device * dev, U32 InitiatorContext,
- PRCTCB pTransCtrlBlock)
-{
- U32 msgOffset;
- PU32 pMsg;
- int size;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- dprintk ("RCI2OSendPacket()...\n");
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- /* get Inbound free Q entry - reading from In Q gets free Q entry */
- /* offset to Msg Frame in PCI msg block */
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- dprintk ("RCI2OSendPacket(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- size = FillI2OMsgSGLFromTCB (pMsg + 4, pTransCtrlBlock);
-
- if (size == -1) { /* error processing TCB - send NOP msg */
- dprintk ("RCI2OSendPacket(): Error Rrocess TCB!\n");
- pMsg[0] = THREE_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] =
- I2O_UTIL_NOP << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- return RC_RTN_TCB_ERROR;
- } else { /* send over msg header */
-
- pMsg[0] = (size + 4) << 16 | LAN_MSG_REQST; /* send over message size and flags */
- pMsg[1] =
- I2O_LAN_PACKET_SEND << 24 | I2O_HOST_TID << 12 |
- RC_LAN_TARGET_ID;
- pMsg[2] = InitiatorContext;
- pMsg[3] = 0; /* batch reply */
- /* post to Inbound Post Q */
- pPab->p_atu->InQueue = msgOffset;
- return RC_RTN_NO_ERROR;
- }
-}
-
-/*
-** =========================================================================
-** RCI2OPostRecvBuffer()
-**
-** inputs: pBufrCntrlBlock - pointer to buffer control block
-**
-** returns TRUE if successful in sending message, else FALSE.
-** =========================================================================
-*/
-RC_RETURN
-RCPostRecvBuffers (struct net_device * dev, PRCTCB pTransCtrlBlock)
-{
- U32 msgOffset;
- PU32 pMsg;
- int size;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- dprintk ("RCPostRecvBuffers()...\n");
-
- /* search for DeviceHandle */
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- /* get Inbound free Q entry - reading from In Q gets free Q entry */
- /* offset to Msg Frame in PCI msg block */
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- dprintk ("RCPostRecvBuffers(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- size = FillI2OMsgSGLFromTCB (pMsg + 4, pTransCtrlBlock);
-
- if (size == -1) { /* error prcessing TCB - send 3 DWORD private msg == NOP */
- dprintk
- ("RCPostRecvBuffers(): Error Processing TCB! size = %d\n",
- size);
- pMsg[0] = THREE_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] =
- I2O_UTIL_NOP << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- /* post to Post Q */
- pPab->p_atu->InQueue = msgOffset;
- return RC_RTN_TCB_ERROR;
- } else { /* send over size msg header */
-
- pMsg[0] = (size + 4) << 16 | LAN_MSG_REQST; /* send over message size and flags */
- pMsg[1] =
- I2O_LAN_RECEIVE_POST << 24 | I2O_HOST_TID << 12 |
- RC_LAN_TARGET_ID;
- pMsg[2] = DEFAULT_RECV_INIT_CONTEXT;
- pMsg[3] = *(PU32) pTransCtrlBlock; /* number of packet buffers */
- /* post to Post Q */
- pPab->p_atu->InQueue = msgOffset;
- return RC_RTN_NO_ERROR;
- }
-}
-
-/*
-** =========================================================================
-** RCProcI2OMsgQ()
-**
-** Process I2O outbound message queue until empty.
-** =========================================================================
-*/
-irqreturn_t
-RCProcI2OMsgQ (struct net_device *dev)
-{
- U32 phyAddrMsg;
- PU8 p8Msg;
- PU32 p32;
- U16 count;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
- unsigned char debug_msg[20];
-
- if (pPab == NULL)
- return IRQ_NONE;
-
- phyAddrMsg = pPab->p_atu->OutQueue;
-
- while (phyAddrMsg != 0xFFFFFFFF) {
- p8Msg =
- pPab->pLinOutMsgBlock + (phyAddrMsg -
- pPab->outMsgBlockPhyAddr);
- p32 = (PU32) p8Msg;
-
- dprintk ("msg: 0x%x 0x%x \n", p8Msg[7], p32[5]);
-
- /* Send Packet Reply Msg */
- if (I2O_LAN_PACKET_SEND == p8Msg[7]) { /* function code byte */
- count = *(PU16) (p8Msg + 2);
- count -= p8Msg[0] >> 4;
- /* status, count, context[], adapter */
- (*pPab->pTransCallbackFunc) (p8Msg[19], count, p32 + 5,
- dev);
- } else if (I2O_LAN_RECEIVE_POST == p8Msg[7]) { /* Receive Packet Reply Msg */
- dprintk
- ("I2O_RECV_REPLY pPab:0x%08ulx p8Msg:0x%08ulx p32:0x%08ulx\n",
- (u32) pPab, (u32) p8Msg, (u32) p32);
- dprintk ("msg: 0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n",
- p32[0], p32[1], p32[2], p32[3]);
- dprintk (" 0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n",
- p32[4], p32[5], p32[6], p32[7]);
- dprintk (" 0x%08ulx:0X%08ulx:0x%08ulx:0x%08ulx\n",
- p32[8], p32[9], p32[10], p32[11]);
- /* status, count, buckets remaining, packetParmBlock, adapter */
- (*pPab->pRecvCallbackFunc) (p8Msg[19], p8Msg[12],
- p32[5], p32 + 6, dev);
- } else if (I2O_LAN_RESET == p8Msg[7]
- || I2O_LAN_SHUTDOWN == p8Msg[7])
- if (pPab->pCallbackFunc)
- (*pPab->pCallbackFunc) (p8Msg[19], 0, 0, dev);
- else
- pPab->pCallbackFunc = (PFNCALLBACK) 1;
- else if (I2O_PRIVATE == p8Msg[7]) {
- dprintk ("i2o private 0x%x, 0x%x \n", p8Msg[7], p32[5]);
- switch (p32[5]) {
- case RC_PRIVATE_DEBUG_MSG:
- msgFlag = 1;
- dprintk ("Received I2O_PRIVATE msg\n");
- debug_msg[15] = (p32[6] & 0xff000000) >> 24;
- debug_msg[14] = (p32[6] & 0x00ff0000) >> 16;
- debug_msg[13] = (p32[6] & 0x0000ff00) >> 8;
- debug_msg[12] = (p32[6] & 0x000000ff);
-
- debug_msg[11] = (p32[7] & 0xff000000) >> 24;
- debug_msg[10] = (p32[7] & 0x00ff0000) >> 16;
- debug_msg[9] = (p32[7] & 0x0000ff00) >> 8;
- debug_msg[8] = (p32[7] & 0x000000ff);
-
- debug_msg[7] = (p32[8] & 0xff000000) >> 24;
- debug_msg[6] = (p32[8] & 0x00ff0000) >> 16;
- debug_msg[5] = (p32[8] & 0x0000ff00) >> 8;
- debug_msg[4] = (p32[8] & 0x000000ff);
-
- debug_msg[3] = (p32[9] & 0xff000000) >> 24;
- debug_msg[2] = (p32[9] & 0x00ff0000) >> 16;
- debug_msg[1] = (p32[9] & 0x0000ff00) >> 8;
- debug_msg[0] = (p32[9] & 0x000000ff);
-
- debug_msg[16] = '\0';
- dprintk ("%s", debug_msg);
- break;
- case RC_PRIVATE_REBOOT:
- dprintk ("Adapter reboot initiated...\n");
- if (pPab->pRebootCallbackFunc)
- (*pPab->pRebootCallbackFunc) (0, 0, 0,
- dev);
- break;
- default:
- printk (KERN_WARNING
- "(rcpci45 driver:) Unknown private I2O msg received: 0x%x\n",
- p32[5]);
- break;
- }
- }
-
- /*
- ** Process other Msg's
- */
- else
- ProcessOutboundI2OMsg (pPab, phyAddrMsg);
-
- /* return MFA to outbound free Q */
- pPab->p_atu->OutQueue = phyAddrMsg;
-
- /* any more msgs? */
- phyAddrMsg = pPab->p_atu->OutQueue;
- }
-
- return IRQ_HANDLED;
-}
-
-/*
-** =========================================================================
-** Returns LAN interface statistical counters to space provided by caller at
-** StatsReturnAddr. Returns 0 if success, else RC_RETURN code.
-** This function will call the WaitCallback function provided by
-** user while waiting for card to respond.
-** =========================================================================
-*/
-RC_RETURN
-RCGetLinkStatistics (struct net_device *dev,
- P_RCLINKSTATS StatsReturnAddr,
- PFNWAITCALLBACK WaitCallback)
-{
- U32 msgOffset;
- volatile U32 timeout;
- volatile PU32 pMsg;
- volatile PU32 p32, pReturnAddr;
- P_NICSTAT pStats;
- int i;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
-/*dprintk("Get82558Stats() StatsReturnAddr:0x%08ulx\n", StatsReturnAddr); */
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- dprintk ("Get8255XStats(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
-/*dprintk("Get82558Stats - pMsg = 0x%08ulx, InQ msgOffset = 0x%08ulx\n", pMsg, msgOffset);*/
-/*dprintk("Get82558Stats - pMsg = 0x%08X, InQ msgOffset = 0x%08X\n", pMsg, msgOffset);*/
-
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = DEFAULT_RECV_INIT_CONTEXT;
- pMsg[3] = 0x112; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_GET_NIC_STATS;
- pMsg[5] = pPab->outMsgBlockPhyAddr;
-
- p32 = (PU32) pPab->outMsgBlockPhyAddr;
- pStats = (P_NICSTAT) pPab->pLinOutMsgBlock;
- pStats->dump_status = 0xFFFFFFFF;
-
- /* post to Inbound Post Q */
- pPab->p_atu->InQueue = msgOffset;
-
- timeout = 100000;
- while (1) {
- if (WaitCallback)
- (*WaitCallback) ();
-
- udelay (10);
-
- if (pStats->dump_status != 0xFFFFFFFF)
- break;
-
- if (!timeout--) {
- dprintk
- ("RCGet82558Stats() Timeout waiting for NIC statistics\n");
- return RC_RTN_MSG_REPLY_TIMEOUT;
- }
- }
-
- pReturnAddr = (PU32) StatsReturnAddr;
-
- /* copy Nic stats to user's structure */
- for (i = 0; i < (int) sizeof (RCLINKSTATS) / 4; i++)
- pReturnAddr[i] = p32[i];
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** Get82558LinkStatus()
-** =========================================================================
-*/
-RC_RETURN
-RCGetLinkStatus (struct net_device * dev, PU32 ReturnAddr,
- PFNWAITCALLBACK WaitCallback)
-{
- U32 msgOffset;
- volatile U32 timeout;
- volatile PU32 pMsg;
- volatile PU32 p32;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- dprintk ("Get82558LinkStatus() ReturnPhysAddr:0x%08ulx\n",
- (u32) ReturnAddr);
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- dprintk ("Get82558LinkStatus(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-/*dprintk("Get82558LinkStatus - pMsg = 0x%08ulx, InQ msgOffset = 0x%08ulx\n", pMsg, msgOffset);*/
-/*dprintk("Get82558LinkStatus - pMsg = 0x%08X, InQ msgOffset = 0x%08X\n", pMsg, msgOffset);*/
-
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = DEFAULT_RECV_INIT_CONTEXT;
- pMsg[3] = 0x112; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_GET_LINK_STATUS;
- pMsg[5] = pPab->outMsgBlockPhyAddr;
-
- p32 = (PU32) pPab->pLinOutMsgBlock;
- *p32 = 0xFFFFFFFF;
-
- /* post to Inbound Post Q */
- pPab->p_atu->InQueue = msgOffset;
-
- timeout = 100000;
- while (1) {
- if (WaitCallback)
- (*WaitCallback) ();
-
- udelay (10);
-
- if (*p32 != 0xFFFFFFFF)
- break;
-
- if (!timeout--) {
- dprintk ("Timeout waiting for link status\n");
- return RC_RTN_MSG_REPLY_TIMEOUT;
- }
- }
-
- *ReturnAddr = *p32; /* 1 = up 0 = down */
-
- return RC_RTN_NO_ERROR;
-
-}
-
-/*
-** =========================================================================
-** RCGetMAC()
-**
-** get the MAC address the adapter is listening for in non-promiscous mode.
-** MAC address is in media format.
-** =========================================================================
-*/
-RC_RETURN
-RCGetMAC (struct net_device * dev, PFNWAITCALLBACK WaitCallback)
-{
- unsigned timeout;
- U32 off;
- PU8 mac = dev->dev_addr;
- PU32 p;
- U32 temp[2];
- PPAB pPab = ((PDPA) dev->priv)->pPab;
- PATU p_atu;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- p_atu = pPab->p_atu;
-
- p_atu->EtherMacLow = 0; /* first zero return data */
- p_atu->EtherMacHi = 0;
-
- off = p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- p = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- dprintk ("RCGetMAC: p_atu 0x%08x, off 0x%08x, p 0x%08x\n",
- (uint) p_atu, (uint) off, (uint) p);
- /* setup private message */
- p[0] = FIVE_WORD_MSG_SIZE | SGL_OFFSET_0;
- p[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- p[2] = 0; /* initiator context */
- p[3] = 0x218; /* transaction context */
- p[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_GET_MAC_ADDR;
-
- p_atu->InQueue = off; /* send it to the I2O device */
- dprintk ("RCGetMAC: p_atu 0x%08x, off 0x%08x, p 0x%08x\n",
- (uint) p_atu, (uint) off, (uint) p);
-
- /* wait for the rcpci45 board to update the info */
- timeout = 1000000;
- while (0 == p_atu->EtherMacLow) {
- if (WaitCallback)
- (*WaitCallback) ();
-
- udelay (10);
-
- if (!timeout--) {
- printk ("rc_getmac: Timeout\n");
- return RC_RTN_MSG_REPLY_TIMEOUT;
- }
- }
-
- /* read the mac address */
- temp[0] = p_atu->EtherMacLow;
- temp[1] = p_atu->EtherMacHi;
- memcpy ((char *) mac, (char *) temp, 6);
-
- dprintk ("rc_getmac: 0x%x\n", (u32) mac);
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCSetMAC()
-**
-** set MAC address the adapter is listening for in non-promiscous mode.
-** MAC address is in media format.
-** =========================================================================
-*/
-RC_RETURN
-RCSetMAC (struct net_device * dev, PU8 mac)
-{
- U32 off;
- PU32 pMsg;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- off = pPab->p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- /* setup private message */
- pMsg[0] = SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_SET_MAC_ADDR;
- pMsg[5] = *(unsigned *) mac; /* first four bytes */
- pMsg[6] = *(unsigned *) (mac + 4); /* last two bytes */
-
- pPab->p_atu->InQueue = off; /* send it to the I2O device */
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCSetLinkSpeed()
-**
-** set ethernet link speed.
-** input: speedControl - determines action to take as follows
-** 0 = reset and auto-negotiate (NWay)
-** 1 = Full Duplex 100BaseT
-** 2 = Half duplex 100BaseT
-** 3 = Full Duplex 10BaseT
-** 4 = Half duplex 10BaseT
-** all other values are ignore (do nothing)
-** =========================================================================
-*/
-RC_RETURN
-RCSetLinkSpeed (struct net_device * dev, U16 LinkSpeedCode)
-{
- U32 off;
- PU32 pMsg;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- off = pPab->p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- /* setup private message */
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_SET_LINK_SPEED;
- pMsg[5] = LinkSpeedCode; /* link speed code */
-
- pPab->p_atu->InQueue = off; /* send it to the I2O device */
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCSetPromiscuousMode()
-**
-** Defined values for Mode:
-** 0 - turn off promiscuous mode
-** 1 - turn on promiscuous mode
-**
-** =========================================================================
-*/
-RC_RETURN
-RCSetPromiscuousMode (struct net_device * dev, U16 Mode)
-{
- U32 off;
- PU32 pMsg;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- off = pPab->p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- /* setup private message */
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_SET_PROMISCUOUS_MODE;
- pMsg[5] = Mode; /* promiscuous mode setting */
-
- pPab->p_atu->InQueue = off; /* send it to the device */
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCGetPromiscuousMode()
-**
-** get promiscuous mode setting
-**
-** Possible return values placed in pMode:
-** 0 = promisuous mode not set
-** 1 = promisuous mode is set
-**
-** =========================================================================
-*/
-RC_RETURN
-RCGetPromiscuousMode (struct net_device * dev, PU32 pMode,
- PFNWAITCALLBACK WaitCallback)
-{
- U32 msgOffset, timeout;
- PU32 pMsg;
- volatile PU32 p32;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- printk (KERN_WARNING
- "(rcpci45 driver:) RCGetLinkSpeed(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- /* virtual pointer to return buffer - clear first two dwords */
- p32 = (volatile PU32) pPab->pLinOutMsgBlock;
- p32[0] = 0xff;
-
- /* setup private message */
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_GET_PROMISCUOUS_MODE;
- /* phys address to return status - area right after PAB */
- pMsg[5] = pPab->outMsgBlockPhyAddr;
-
- /* post to Inbound Post Q */
-
- pPab->p_atu->InQueue = msgOffset;
-
- /* wait for response */
- timeout = 1000000;
- while (1) {
- if (WaitCallback)
- (*WaitCallback) ();
-
- udelay (10); /* please don't hog the bus!!! */
-
- if (p32[0] != 0xff)
- break;
-
- if (!timeout--) {
- dprintk
- ("Timeout waiting for promiscuous mode from adapter\n");
- dprintk ("0x%8x\n", p32[0]);
- return RC_RTN_NO_LINK_SPEED;
- }
- }
-
- /* get mode */
- *pMode = (U8) ((volatile PU8) p32)[0] & 0x0f;
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCSetBroadcastMode()
-**
-** Defined values for Mode:
-** 0 - turn off promiscuous mode
-** 1 - turn on promiscuous mode
-**
-** =========================================================================
-*/
-RC_RETURN
-RCSetBroadcastMode (struct net_device * dev, U16 Mode)
-{
- U32 off;
- PU32 pMsg;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- off = pPab->p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- /* setup private message */
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_SET_BROADCAST_MODE;
- pMsg[5] = Mode; /* promiscuous mode setting */
-
- pPab->p_atu->InQueue = off; /* send it to the device */
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCGetBroadcastMode()
-**
-** get promiscuous mode setting
-**
-** Possible return values placed in pMode:
-** 0 = promisuous mode not set
-** 1 = promisuous mode is set
-**
-** =========================================================================
-*/
-RC_RETURN
-RCGetBroadcastMode (struct net_device * dev, PU32 pMode,
- PFNWAITCALLBACK WaitCallback)
-{
- U32 msgOffset, timeout;
- PU32 pMsg;
- volatile PU32 p32;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- printk (KERN_WARNING
- "(rcpci45 driver:) RCGetLinkSpeed(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- /* virtual pointer to return buffer - clear first two dwords */
- p32 = (volatile PU32) pPab->pLinOutMsgBlock;
- p32[0] = 0xff;
-
- /* setup private message */
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_GET_BROADCAST_MODE;
- /* phys address to return status - area right after PAB */
- pMsg[5] = pPab->outMsgBlockPhyAddr;
-
- /* post to Inbound Post Q */
-
- pPab->p_atu->InQueue = msgOffset;
-
- /* wait for response */
- timeout = 1000000;
- while (1) {
- if (WaitCallback)
- (*WaitCallback) ();
-
- udelay (10); /* please don't hog the bus!!! */
-
- if (p32[0] != 0xff)
- break;
-
- if (!timeout--) {
- printk (KERN_WARNING
- "(rcpci45 driver:) Timeout waiting for promiscuous mode from adapter\n");
- printk (KERN_WARNING "(rcpci45 driver:) 0x%8x\n",
- p32[0]);
- return RC_RTN_NO_LINK_SPEED;
- }
- }
-
- /* get mode */
- *pMode = (U8) ((volatile PU8) p32)[0] & 0x0f;
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCGetLinkSpeed()
-**
-** get ethernet link speed.
-**
-** 0 = Unknown
-** 1 = Full Duplex 100BaseT
-** 2 = Half duplex 100BaseT
-** 3 = Full Duplex 10BaseT
-** 4 = Half duplex 10BaseT
-**
-** =========================================================================
-*/
-RC_RETURN
-RCGetLinkSpeed (struct net_device * dev, PU32 pLinkSpeedCode,
- PFNWAITCALLBACK WaitCallback)
-{
- U32 msgOffset, timeout;
- PU32 pMsg;
- volatile PU32 p32;
- U8 IOPLinkSpeed;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- printk (KERN_WARNING
- "(rcpci45 driver:) RCGetLinkSpeed(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- /* virtual pointer to return buffer - clear first two dwords */
- p32 = (volatile PU32) pPab->pLinOutMsgBlock;
- p32[0] = 0xff;
-
- /* setup private message */
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_GET_LINK_SPEED;
- /* phys address to return status - area right after PAB */
- pMsg[5] = pPab->outMsgBlockPhyAddr;
-
- /* post to Inbound Post Q */
-
- pPab->p_atu->InQueue = msgOffset;
-
- /* wait for response */
- timeout = 1000000;
- while (1) {
- if (WaitCallback)
- (*WaitCallback) ();
-
- udelay (10); /* please don't hog the bus!!! */
-
- if (p32[0] != 0xff)
- break;
-
- if (!timeout--) {
- dprintk ("Timeout waiting for link speed from IOP\n");
- dprintk ("0x%8x\n", p32[0]);
- return RC_RTN_NO_LINK_SPEED;
- }
- }
-
- /* get Link speed */
- IOPLinkSpeed = (U8) ((volatile PU8) p32)[0] & 0x0f;
-
- *pLinkSpeedCode = IOPLinkSpeed;
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCReportDriverCapability(struct net_device *dev, U32 capability)
-**
-** Currently defined bits:
-** WARM_REBOOT_CAPABLE 0x01
-**
-** =========================================================================
-*/
-RC_RETURN
-RCReportDriverCapability (struct net_device * dev, U32 capability)
-{
- U32 off;
- PU32 pMsg;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- off = pPab->p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- /* setup private message */
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] =
- RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_REPORT_DRIVER_CAPABILITY;
- pMsg[5] = capability;
-
- pPab->p_atu->InQueue = off; /* send it to the I2O device */
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCGetFirmwareVer()
-**
-** Return firmware version in the form "SoftwareVersion : Bt BootVersion"
-**
-** =========================================================================
-*/
-RC_RETURN
-RCGetFirmwareVer (struct net_device * dev, PU8 pFirmString,
- PFNWAITCALLBACK WaitCallback)
-{
- U32 msgOffset, timeout;
- PU32 pMsg;
- volatile PU32 p32;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- msgOffset = pPab->p_atu->InQueue;
- if (msgOffset == 0xFFFFFFFF) {
- dprintk ("RCGetFirmwareVer(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- /* virtual pointer to return buffer - clear first two dwords */
- p32 = (volatile PU32) pPab->pLinOutMsgBlock;
- p32[0] = 0xff;
-
- /* setup private message */
- pMsg[0] = SIX_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_GET_FIRMWARE_REV;
- /* phys address to return status - area right after PAB */
- pMsg[5] = pPab->outMsgBlockPhyAddr;
-
- /* post to Inbound Post Q */
-
- pPab->p_atu->InQueue = msgOffset;
-
- /* wait for response */
- timeout = 1000000;
- while (1) {
- if (WaitCallback)
- (*WaitCallback) ();
-
- udelay (10); /* please don't hog the bus!!! */
-
- if (p32[0] != 0xff)
- break;
-
- if (!timeout--) {
- dprintk ("Timeout waiting for link speed from IOP\n");
- return RC_RTN_NO_FIRM_VER;
- }
- }
-
- strcpy (pFirmString, (PU8) p32);
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCResetLANCard()
-**
-** ResourceFlags indicates whether to return buffer resource explicitly
-** to host or keep and reuse.
-** CallbackFunction (if not NULL) is the function to be called when
-** reset is complete.
-** If CallbackFunction is NULL, ReturnAddr will have a 1 placed in it when
-** reset is done (if not NULL).
-**
-** =========================================================================
-*/
-RC_RETURN
-RCResetLANCard (struct net_device * dev, U16 ResourceFlags, PU32 ReturnAddr,
- PFNCALLBACK CallbackFunction)
-{
- unsigned long off;
- PU32 pMsg;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
- long timeout = 0;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- off = pPab->p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- pPab->pCallbackFunc = CallbackFunction;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- /* setup message */
- pMsg[0] = FOUR_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_LAN_RESET << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = DEFAULT_RECV_INIT_CONTEXT;
- pMsg[3] = ResourceFlags << 16; /* resource flags */
-
- pPab->p_atu->InQueue = off; /* send it to the I2O device */
-
- if (CallbackFunction == (PFNCALLBACK) NULL) {
- /* call RCProcI2OMsgQ() until something in pPab->pCallbackFunc
- or until timer goes off */
- while (pPab->pCallbackFunc == (PFNCALLBACK) NULL) {
- RCProcI2OMsgQ (dev);
- udelay (1000); /* please don't hog the bus!!! */
- timeout++;
- if (timeout > 10000) {
- break;
- }
- }
- if (ReturnAddr != (PU32) NULL)
- *ReturnAddr = (U32) pPab->pCallbackFunc;
- }
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCResetIOP()
-**
-** Send StatusGet Msg, wait for results return directly to buffer.
-**
-** =========================================================================
-*/
-RC_RETURN
-RCResetIOP (struct net_device * dev)
-{
- U32 msgOffset, timeout;
- PU32 pMsg;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
- volatile PU32 p32;
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- pMsg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_EXEC_IOP_RESET << 24 | I2O_HOST_TID << 12 | I2O_IOP_TID;
- pMsg[2] = 0; /* universal context */
- pMsg[3] = 0; /* universal context */
- pMsg[4] = 0; /* universal context */
- pMsg[5] = 0; /* universal context */
- /* phys address to return status - area right after PAB */
- pMsg[6] = pPab->outMsgBlockPhyAddr;
- pMsg[7] = 0;
- pMsg[8] = 1; /* return 1 byte */
-
- /* virtual pointer to return buffer - clear first two dwords */
- p32 = (volatile PU32) pPab->pLinOutMsgBlock;
- p32[0] = 0;
- p32[1] = 0;
-
- /* post to Inbound Post Q */
-
- pPab->p_atu->InQueue = msgOffset;
-
- /* wait for response */
- timeout = 1000000;
- while (1) {
- udelay (10); /* please don't hog the bus!!! */
-
- if (p32[0] || p32[1])
- break;
-
- if (!timeout--) {
- dprintk ("RCResetIOP timeout\n");
- return RC_RTN_MSG_REPLY_TIMEOUT;
- }
- }
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCShutdownLANCard()
-**
-** ResourceFlags indicates whether to return buffer resource explicitly
-** to host or keep and reuse.
-** CallbackFunction (if not NULL) is the function to be called when
-** shutdown is complete.
-** If CallbackFunction is NULL, ReturnAddr will have a 1 placed in it when
-** shutdown is done (if not NULL).
-**
-** =========================================================================
-*/
-RC_RETURN
-RCShutdownLANCard (struct net_device * dev, U16 ResourceFlags,
- PU32 ReturnAddr, PFNCALLBACK CallbackFunction)
-{
- volatile PU32 pMsg;
- U32 off;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
- long timeout = 0;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- off = pPab->p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- pPab->pCallbackFunc = CallbackFunction;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- /* setup message */
- pMsg[0] = FOUR_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] =
- I2O_LAN_SHUTDOWN << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = DEFAULT_RECV_INIT_CONTEXT;
- pMsg[3] = ResourceFlags << 16; /* resource flags */
-
- pPab->p_atu->InQueue = off; /* send it to the I2O device */
-
- if (CallbackFunction == (PFNCALLBACK) NULL) {
- /* call RCProcI2OMsgQ() until something in pPab->pCallbackFunc
- or until timer goes off */
- while (pPab->pCallbackFunc == (PFNCALLBACK) NULL) {
- RCProcI2OMsgQ (dev);
- udelay (1000); /* please don't hog the bus!!! */
- timeout++;
- if (timeout > 10000) {
- printk (KERN_WARNING
- "(rcpci45 driver:) RCShutdownLANCard(): timeout\n");
- break;
- }
- }
- if (ReturnAddr != (PU32) NULL)
- *ReturnAddr = (U32) pPab->pCallbackFunc;
- }
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** RCSetRavlinIPandMask()
-**
-** Set the Ravlin 45/PCI cards IP address and network mask.
-**
-** IP address and mask must be in network byte order.
-** For example, IP address 1.2.3.4 and mask 255.255.255.0 would be
-** 0x04030201 and 0x00FFFFFF on a little endian machine.
-**
-** =========================================================================
-*/
-RC_RETURN
-RCSetRavlinIPandMask (struct net_device * dev, U32 ipAddr, U32 netMask)
-{
- volatile PU32 pMsg;
- U32 off;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- off = pPab->p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- /* setup private message */
- pMsg[0] = SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x219; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_SET_IP_AND_MASK;
- pMsg[5] = ipAddr;
- pMsg[6] = netMask;
-
- pPab->p_atu->InQueue = off; /* send it to the I2O device */
- return RC_RTN_NO_ERROR;
-
-}
-
-/*
-** =========================================================================
-** RCGetRavlinIPandMask()
-**
-** get the IP address and MASK from the card
-**
-** =========================================================================
-*/
-RC_RETURN
-RCGetRavlinIPandMask (struct net_device * dev, PU32 pIpAddr, PU32 pNetMask,
- PFNWAITCALLBACK WaitCallback)
-{
- unsigned timeout;
- U32 off;
- PU32 pMsg, p32;
- PPAB pPab = ((PDPA) dev->priv)->pPab;
- PATU p_atu;
-
- dprintk
- ("RCGetRavlinIPandMask: pIpAddr is 0x%08ulx, *IpAddr is 0x%08ulx\n",
- (u32) pIpAddr, *pIpAddr);
-
- if (pPab == NULL)
- return RC_RTN_ADPTR_NOT_REGISTERED;
-
- p_atu = pPab->p_atu;
- off = p_atu->InQueue; /* get addresss of message */
-
- if (0xFFFFFFFF == off)
- return RC_RTN_FREE_Q_EMPTY;
-
- p32 = (volatile PU32) pPab->pLinOutMsgBlock;
- *p32 = 0xFFFFFFFF;
-
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + off);
-
- dprintk
- ("RCGetRavlinIPandMask: p_atu 0x%08ulx, off 0x%08ulx, p32 0x%08ulx\n",
- (u32) p_atu, off, (u32) p32);
- /* setup private message */
- pMsg[0] = FIVE_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_PRIVATE << 24 | I2O_HOST_TID << 12 | RC_LAN_TARGET_ID;
- pMsg[2] = 0; /* initiator context */
- pMsg[3] = 0x218; /* transaction context */
- pMsg[4] = RC_PCI45_VENDOR_ID << 16 | RC_PRIVATE_GET_IP_AND_MASK;
- pMsg[5] = pPab->outMsgBlockPhyAddr;
-
- p_atu->InQueue = off; /* send it to the I2O device */
- dprintk
- ("RCGetRavlinIPandMask: p_atu 0x%08ulx, off 0x%08ulx, p32 0x%08ulx\n",
- (u32) p_atu, off, (u32) p32);
-
- /* wait for the rcpci45 board to update the info */
- timeout = 100000;
- while (0xffffffff == *p32) {
- if (WaitCallback)
- (*WaitCallback) ();
-
- udelay (10);
-
- if (!timeout--) {
- dprintk ("RCGetRavlinIPandMask: Timeout\n");
- return RC_RTN_MSG_REPLY_TIMEOUT;
- }
- }
-
- dprintk
- ("RCGetRavlinIPandMask: after time out\np32[0] (IpAddr) 0x%08ulx, p32[1] (IPmask) 0x%08ulx\n",
- p32[0], p32[1]);
-
- /* send IP and mask to user's space */
- *pIpAddr = p32[0];
- *pNetMask = p32[1];
-
- dprintk
- ("RCGetRavlinIPandMask: pIpAddr is 0x%08ulx, *IpAddr is 0x%08ulx\n",
- (u32) pIpAddr, *pIpAddr);
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** /////////////////////////////////////////////////////////////////////////
-** /////////////////////////////////////////////////////////////////////////
-**
-** local functions
-**
-** /////////////////////////////////////////////////////////////////////////
-** /////////////////////////////////////////////////////////////////////////
-*/
-
-/*
-** =========================================================================
-** SendI2OOutboundQInitMsg()
-**
-** =========================================================================
-*/
-static int
-SendI2OOutboundQInitMsg (PPAB pPab)
-{
- U32 msgOffset, timeout, phyOutQFrames, i;
- volatile PU32 pMsg;
- volatile PU32 p32;
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- dprintk ("SendI2OOutboundQInitMsg(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- dprintk
- ("SendI2OOutboundQInitMsg - pMsg = 0x%08ulx, InQ msgOffset = 0x%08ulx\n",
- (u32) pMsg, msgOffset);
-
- pMsg[0] = EIGHT_WORD_MSG_SIZE | TRL_OFFSET_6;
- pMsg[1] =
- I2O_EXEC_OUTBOUND_INIT << 24 | I2O_HOST_TID << 12 | I2O_IOP_TID;
- pMsg[2] = DEFAULT_RECV_INIT_CONTEXT;
- pMsg[3] = 0x106; /* transaction context */
- pMsg[4] = 4096; /* Host page frame size */
- pMsg[5] = MSG_FRAME_SIZE << 16 | 0x80; /* outbound msg frame size and Initcode */
- pMsg[6] = 0xD0000004; /* simple sgl element LE, EOB */
- /* phys address to return status - area right after PAB */
- pMsg[7] = pPab->outMsgBlockPhyAddr;
-
- /* virtual pointer to return buffer - clear first two dwords */
- p32 = (PU32) pPab->pLinOutMsgBlock;
- p32[0] = 0;
-
- /* post to Inbound Post Q */
- pPab->p_atu->InQueue = msgOffset;
-
- /* wait for response */
- timeout = 100000;
- while (1) {
- udelay (10); /* please don't hog the bus!!! */
-
- if (p32[0])
- break;
-
- if (!timeout--) {
- dprintk
- ("Timeout wait for InitOutQ InPrgress status from IOP\n");
- return RC_RTN_NO_I2O_STATUS;
- }
- }
-
- timeout = 100000;
- while (1) {
- udelay (10); /* please don't hog the bus!!! */
-
- if (p32[0] == I2O_EXEC_OUTBOUND_INIT_COMPLETE)
- break;
-
- if (!timeout--) {
- dprintk
- ("Timeout wait for InitOutQ Complete status from IOP\n");
- return RC_RTN_NO_I2O_STATUS;
- }
- }
-
- /* load PCI outbound free Q with MF physical addresses */
- phyOutQFrames = pPab->outMsgBlockPhyAddr;
-
- for (i = 0; i < NMBR_MSG_FRAMES; i++) {
- pPab->p_atu->OutQueue = phyOutQFrames;
- phyOutQFrames += MSG_FRAME_SIZE;
- }
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** GetI2OStatus()
-**
-** Send StatusGet Msg, wait for results return directly to buffer.
-**
-** =========================================================================
-*/
-static int
-GetI2OStatus (PPAB pPab)
-{
- U32 msgOffset, timeout;
- PU32 pMsg;
- volatile PU32 p32;
-
- msgOffset = pPab->p_atu->InQueue;
- dprintk ("GetI2OStatus: msg offset = 0x%x\n", msgOffset);
- if (msgOffset == 0xFFFFFFFF) {
- dprintk ("GetI2OStatus(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- pMsg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_EXEC_STATUS_GET << 24 | I2O_HOST_TID << 12 | I2O_IOP_TID;
- pMsg[2] = 0; /* universal context */
- pMsg[3] = 0; /* universal context */
- pMsg[4] = 0; /* universal context */
- pMsg[5] = 0; /* universal context */
- /* phys address to return status - area right after PAB */
- pMsg[6] = pPab->outMsgBlockPhyAddr;
- pMsg[7] = 0;
- pMsg[8] = 88; /* return 88 bytes */
-
- /* virtual pointer to return buffer - clear first two dwords */
- p32 = (volatile PU32) pPab->pLinOutMsgBlock;
- p32[0] = 0;
- p32[1] = 0;
-
- dprintk
- ("GetI2OStatus - pMsg:0x%08ulx, msgOffset:0x%08ulx, [1]:0x%08ulx, [6]:0x%08ulx\n",
- (u32) pMsg, msgOffset, pMsg[1], pMsg[6]);
-
- /* post to Inbound Post Q */
- pPab->p_atu->InQueue = msgOffset;
-
- dprintk ("Return status to p32 = 0x%08ulx\n", (u32) p32);
-
- /* wait for response */
- timeout = 1000000;
- while (1) {
- udelay (10); /* please don't hog the bus!!! */
-
- if (p32[0] && p32[1])
- break;
-
- if (!timeout--) {
- dprintk ("Timeout waiting for status from IOP\n");
- dprintk ("0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n",
- p32[0], p32[1], p32[2], p32[3]);
- dprintk ("0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n",
- p32[4], p32[5], p32[6], p32[7]);
- dprintk ("0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n",
- p32[8], p32[9], p32[10], p32[11]);
- return RC_RTN_NO_I2O_STATUS;
- }
- }
-
- dprintk ("0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n", p32[0], p32[1],
- p32[2], p32[3]);
- dprintk ("0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n", p32[4], p32[5],
- p32[6], p32[7]);
- dprintk ("0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n", p32[8], p32[9],
- p32[10], p32[11]);
- /* get IOP state */
- pPab->IOPState = ((volatile PU8) p32)[10];
- pPab->InboundMFrameSize = ((volatile PU16) p32)[6];
-
- dprintk ("IOP state 0x%02x InFrameSize = 0x%04x\n",
- pPab->IOPState, pPab->InboundMFrameSize);
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** SendEnableSysMsg()
-**
-**
-** =========================================================================
-*/
-static int
-SendEnableSysMsg (PPAB pPab)
-{
- U32 msgOffset;
- volatile PU32 pMsg;
-
- msgOffset = pPab->p_atu->InQueue;
-
- if (msgOffset == 0xFFFFFFFF) {
- dprintk ("SendEnableSysMsg(): Inbound Free Q empty!\n");
- return RC_RTN_FREE_Q_EMPTY;
- }
-
- /* calc virtual address of msg - virtual already mapped to physical */
- pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
-
- dprintk
- ("SendEnableSysMsg - pMsg = 0x%08ulx, InQ msgOffset = 0x%08ulx\n",
- (u32) pMsg, msgOffset);
-
- pMsg[0] = FOUR_WORD_MSG_SIZE | SGL_OFFSET_0;
- pMsg[1] = I2O_EXEC_SYS_ENABLE << 24 | I2O_HOST_TID << 12 | I2O_IOP_TID;
- pMsg[2] = DEFAULT_RECV_INIT_CONTEXT;
- pMsg[3] = 0x110; /* transaction context */
- pMsg[4] = 0x50657465; /* RedCreek Private */
-
- /* post to Inbound Post Q */
- pPab->p_atu->InQueue = msgOffset;
-
- return RC_RTN_NO_ERROR;
-}
-
-/*
-** =========================================================================
-** FillI2OMsgFromTCB()
-**
-** inputs pMsgU32 - virtual pointer (mapped to physical) of message frame
-** pXmitCntrlBlock - pointer to caller buffer control block.
-**
-** fills in LAN SGL after Transaction Control Word or Bucket Count.
-** =========================================================================
-*/
-static int
-FillI2OMsgSGLFromTCB (PU32 pMsgFrame, PRCTCB pTransCtrlBlock)
-{
- unsigned int nmbrBuffers, nmbrSeg, nmbrDwords, context, flags;
- PU32 pTCB, pMsg;
-
- /* SGL element flags */
-#define EOB 0x40000000
-#define LE 0x80000000
-#define SIMPLE_SGL 0x10000000
-#define BC_PRESENT 0x01000000
-
- pTCB = (PU32) pTransCtrlBlock;
- pMsg = pMsgFrame;
- nmbrDwords = 0;
-
- dprintk ("FillI2OMsgSGLFromTCBX\n");
- dprintk ("TCB 0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n",
- pTCB[0], pTCB[1], pTCB[2], pTCB[3], pTCB[4]);
- dprintk ("pTCB 0x%08ulx, pMsg 0x%08ulx\n", (u32) pTCB, (u32) pMsg);
-
- nmbrBuffers = *pTCB++;
-
- if (!nmbrBuffers) {
- return -1;
- }
-
- do {
- context = *pTCB++; /* buffer tag (context) */
- nmbrSeg = *pTCB++; /* number of segments */
-
- if (!nmbrSeg) {
- return -1;
- }
-
- flags = SIMPLE_SGL | BC_PRESENT;
-
- if (1 == nmbrSeg) {
- flags |= EOB;
-
- if (1 == nmbrBuffers)
- flags |= LE;
- }
-
- /* 1st SGL buffer element has context */
- pMsg[0] = pTCB[0] | flags; /* send over count (segment size) */
- pMsg[1] = context;
- pMsg[2] = pTCB[1]; /* send buffer segment physical address */
- nmbrDwords += 3;
- pMsg += 3;
- pTCB += 2;
-
- if (--nmbrSeg) {
- do {
- flags = SIMPLE_SGL;
-
- if (1 == nmbrSeg) {
- flags |= EOB;
-
- if (1 == nmbrBuffers)
- flags |= LE;
- }
-
- pMsg[0] = pTCB[0] | flags; /* send over count */
- pMsg[1] = pTCB[1]; /* send buffer segment physical address */
- nmbrDwords += 2;
- pTCB += 2;
- pMsg += 2;
-
- } while (--nmbrSeg);
- }
-
- } while (--nmbrBuffers);
-
- return nmbrDwords;
-}
-
-/*
-** =========================================================================
-** ProcessOutboundI2OMsg()
-**
-** process I2O reply message
-** * change to msg structure *
-** =========================================================================
-*/
-static void
-ProcessOutboundI2OMsg (PPAB pPab, U32 phyAddrMsg)
-{
- PU8 p8Msg;
- PU32 p32;
-/* U16 count; */
-
- p8Msg = pPab->pLinOutMsgBlock + (phyAddrMsg - pPab->outMsgBlockPhyAddr);
- p32 = (PU32) p8Msg;
-
- dprintk
- ("VXD: ProcessOutboundI2OMsg - pPab 0x%08ulx, phyAdr 0x%08ulx, linAdr 0x%08ulx\n",
- (u32) pPab, phyAddrMsg, (u32) p8Msg);
- dprintk ("msg :0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n", p32[0], p32[1],
- p32[2], p32[3]);
- dprintk ("msg :0x%08ulx:0x%08ulx:0x%08ulx:0x%08ulx\n", p32[4], p32[5],
- p32[6], p32[7]);
-
- if (p32[4] >> 24 != I2O_REPLY_STATUS_SUCCESS) {
- dprintk ("Message reply status not success\n");
- return;
- }
-
- switch (p8Msg[7]) { /* function code byte */
- case I2O_EXEC_SYS_TAB_SET:
- msgFlag = 1;
- dprintk ("Received I2O_EXEC_SYS_TAB_SET reply\n");
- break;
-
- case I2O_EXEC_HRT_GET:
- msgFlag = 1;
- dprintk ("Received I2O_EXEC_HRT_GET reply\n");
- break;
-
- case I2O_EXEC_LCT_NOTIFY:
- msgFlag = 1;
- dprintk ("Received I2O_EXEC_LCT_NOTIFY reply\n");
- break;
-
- case I2O_EXEC_SYS_ENABLE:
- msgFlag = 1;
- dprintk ("Received I2O_EXEC_SYS_ENABLE reply\n");
- break;
-
- default:
- dprintk ("Received UNKNOWN reply\n");
- break;
- }
-}
+++ /dev/null
-/*
-** *************************************************************************
-**
-**
-** R C L A N M T L . H $Revision: 6 $
-**
-**
-** RedCreek I2O LAN Message Transport Layer header file.
-**
-** ---------------------------------------------------------------------
-** --- Copyright (c) 1997-1999, RedCreek Communications Inc. ---
-** --- All rights reserved. ---
-** ---------------------------------------------------------------------
-**
-** File Description:
-**
-** Header file for host I2O (Intelligent I/O) LAN message transport layer
-** API and data types.
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-** GNU General Public License for more details.
-
-** You should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** *************************************************************************
-*/
-
-#ifndef RCLANMTL_H
-#define RCLANMTL_H
-
-/* Linux specific includes */
-#include <asm/types.h>
-#ifdef RC_LINUX_MODULE /* linux modules need non-library version of string functions */
-#include <linux/string.h>
-#else
-#include <string.h>
-#endif
-#include <linux/delay.h> /* for udelay() */
-
-#include <linux/netdevice.h>
-#include <linux/if_ether.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-
-#include <asm/io.h>
-
-/* Debug stuff. Define for debug output */
-#undef RCDEBUG
-
-#ifdef RCDEBUG
-#define dprintk(args...) printk(KERN_DEBUG "rc: " args)
-#else
-#define dprintk(args...) { }
-#endif
-
-/* Typedefs */
-
- /* scalar data types */
-typedef __u8 U8;
-typedef __u16 U16;
-typedef __u32 U32;
-typedef __u8 *PU8;
-typedef __u16 *PU16;
-typedef __u32 *PU32;
-typedef unsigned long BF;
-typedef int RC_RETURN;
-
- /*
- ** type PFNWAITCALLBACK
- **
- ** pointer to void function - type used for WaitCallback in some functions
- */
-typedef void (*PFNWAITCALLBACK) (void); /* void argument avoids compiler complaint */
-
- /*
- ** type PFNTXCALLBACK
- **
- ** Pointer to user's transmit callback function. This user function is
- ** called from RCProcI2OMsgQ() when packet have been transmitted from buffers
- ** given in the RCI2OSendPacket() function. BufferContext is a pointer to
- ** an array of 32 bit context values. These are the values the user assigned
- ** and passed in the TCB to the RCI2OSendPacket() function. PcktCount
- ** indicates the number of buffer context values in the BufferContext[] array.
- ** The User's TransmitCallbackFunction should recover (put back in free queue)
- ** the packet buffers associated with the buffer context values.
- */
-typedef void (*PFNTXCALLBACK) (U32 Status,
- U16 PcktCount,
- PU32 BufferContext, struct net_device *);
-
- /*
- ** type PFNRXCALLBACK
- **
- ** Pointer to user's receive callback function. This user function
- ** is called from RCProcI2OMsgQ() when packets have been received into
- ** previously posted packet buffers throught the RCPostRecvBuffers() function.
- ** The received callback function should process the Packet Descriptor Block
- ** pointed to by PacketDescBlock. See Packet Decription Block below.
- */
-typedef void (*PFNRXCALLBACK) (U32 Status,
- U8 PktCount,
- U32 BucketsRemain,
- PU32 PacketDescBlock, struct net_device *);
-
- /*
- ** type PFNCALLBACK
- **
- ** Pointer to user's generic callback function. This user function
- ** can be passed to LANReset or LANShutdown and is called when the
- ** the reset or shutdown is complete.
- ** Param1 and Param2 are invalid for LANReset and LANShutdown.
- */
-typedef void (*PFNCALLBACK) (U32 Status,
- U32 Param1, U32 Param2, struct net_device * dev);
-
-/*
-** Message Unit CSR definitions for RedCreek PCI45 board
-*/
-typedef struct tag_rcatu {
- volatile unsigned long APICRegSel; /* APIC Register Select */
- volatile unsigned long reserved0;
- volatile unsigned long APICWinReg; /* APIC Window Register */
- volatile unsigned long reserved1;
- volatile unsigned long InMsgReg0; /* inbound message register 0 */
- volatile unsigned long InMsgReg1; /* inbound message register 1 */
- volatile unsigned long OutMsgReg0; /* outbound message register 0 */
- volatile unsigned long OutMsgReg1; /* outbound message register 1 */
- volatile unsigned long InDoorReg; /* inbound doorbell register */
- volatile unsigned long InIntStat; /* inbound interrupt status register */
- volatile unsigned long InIntMask; /* inbound interrupt mask register */
- volatile unsigned long OutDoorReg; /* outbound doorbell register */
- volatile unsigned long OutIntStat; /* outbound interrupt status register */
- volatile unsigned long OutIntMask; /* outbound interrupt mask register */
- volatile unsigned long reserved2;
- volatile unsigned long reserved3;
- volatile unsigned long InQueue; /* inbound queue port */
- volatile unsigned long OutQueue; /* outbound queue port */
- volatile unsigned long reserved4;
- volatile unsigned long reserver5;
- /* RedCreek extension */
- volatile unsigned long EtherMacLow;
- volatile unsigned long EtherMacHi;
- volatile unsigned long IPaddr;
- volatile unsigned long IPmask;
-} *PATU;
-
- /*
- ** typedef PAB
- **
- ** PCI Adapter Block - holds instance specific information.
- */
-typedef struct {
- PATU p_atu; /* ptr to ATU register block */
- PU8 pPci45LinBaseAddr;
- PU8 pLinOutMsgBlock;
- U32 outMsgBlockPhyAddr;
- PFNTXCALLBACK pTransCallbackFunc;
- PFNRXCALLBACK pRecvCallbackFunc;
- PFNCALLBACK pRebootCallbackFunc;
- PFNCALLBACK pCallbackFunc;
- U16 IOPState;
- U16 InboundMFrameSize;
-} *PPAB;
-
-/*
- * Driver Private Area, DPA.
- */
-typedef struct {
- U8 id; /* the AdapterID */
-
- /* These two field are basically for the RCioctl function.
- * I could not determine if they could be avoided. (RAA)*/
- U32 pci_addr; /* the pci address of the adapter */
- U32 pci_addr_len;
-
- struct pci_dev *pci_dev;
- struct timer_list timer; /* timer */
- struct net_device_stats stats; /* the statistics structure */
- unsigned long numOutRcvBuffers; /* number of outstanding receive buffers */
- unsigned char shutdown;
- unsigned char reboot;
- unsigned char nexus;
- PU8 msgbuf; /* Pointer to Lan Api Private Area */
- dma_addr_t msgbuf_dma;
- PPAB pPab; /* Pointer to the PCI Adapter Block */
-} *PDPA;
-
-/* PCI/45 Configuration space values */
-#define RC_PCI45_VENDOR_ID 0x4916
-#define RC_PCI45_DEVICE_ID 0x1960
-
- /* RedCreek API function return values */
-#define RC_RTN_NO_ERROR 0
-#define RC_RTN_I2O_NOT_INIT 1
-#define RC_RTN_FREE_Q_EMPTY 2
-#define RC_RTN_TCB_ERROR 3
-#define RC_RTN_TRANSACTION_ERROR 4
-#define RC_RTN_ADAPTER_ALREADY_INIT 5
-#define RC_RTN_MALLOC_ERROR 6
-#define RC_RTN_ADPTR_NOT_REGISTERED 7
-#define RC_RTN_MSG_REPLY_TIMEOUT 8
-#define RC_RTN_NO_I2O_STATUS 9
-#define RC_RTN_NO_FIRM_VER 10
-#define RC_RTN_NO_LINK_SPEED 11
-
-/* Driver capability flags */
-#define WARM_REBOOT_CAPABLE 0x01
-
-/*
-** Status - Transmit and Receive callback status word
-**
-** A 32 bit Status is returned to the TX and RX callback functions. This value
-** contains both the reply status and the detailed status as follows:
-**
-** 32 24 16 0
-** +------+------+------------+
-** | Reply| | Detailed |
-** |Status| 0 | Status |
-** +------+------+------------+
-**
-** Reply Status and Detailed Status of zero indicates No Errors.
-*/
- /* reply message status defines */
-#define I2O_REPLY_STATUS_SUCCESS 0x00
-#define I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER 0x02
-#define I2O_REPLY_STATUS_TRANSACTION_ERROR 0x0A
-
-/* DetailedStatusCode defines */
-#define I2O_LAN_DSC_SUCCESS 0x0000
-#define I2O_LAN_DSC_DEVICE_FAILURE 0x0001
-#define I2O_LAN_DSC_DESTINATION_NOT_FOUND 0x0002
-#define I2O_LAN_DSC_TRANSMIT_ERROR 0x0003
-#define I2O_LAN_DSC_TRANSMIT_ABORTED 0x0004
-#define I2O_LAN_DSC_RECEIVE_ERROR 0x0005
-#define I2O_LAN_DSC_RECEIVE_ABORTED 0x0006
-#define I2O_LAN_DSC_DMA_ERROR 0x0007
-#define I2O_LAN_DSC_BAD_PACKET_DETECTED 0x0008
-#define I2O_LAN_DSC_OUT_OF_MEMORY 0x0009
-#define I2O_LAN_DSC_BUCKET_OVERRUN 0x000A
-#define I2O_LAN_DSC_IOP_INTERNAL_ERROR 0x000B
-#define I2O_LAN_DSC_CANCELED 0x000C
-#define I2O_LAN_DSC_INVALID_TRANSACTION_CONTEXT 0x000D
-#define I2O_LAN_DSC_DESTINATION_ADDRESS_DETECTED 0x000E
-#define I2O_LAN_DSC_DESTINATION_ADDRESS_OMITTED 0x000F
-#define I2O_LAN_DSC_PARTIAL_PACKET_RETURNED 0x0010
-
-/*
-** Packet Description Block (Received packets)
-**
-** A pointer to this block structure is returned to the ReceiveCallback
-** function. It contains the list of packet buffers which have either been
-** filled with a packet or returned to host due to a LANReset function.
-** Currently there will only be one packet per receive bucket (buffer) posted.
-**
-** 32 24 0
-** +-----------------------+ -\
-** | Buffer 1 Context | \
-** +-----------------------+ \
-** | 0xC0000000 | / First Bucket Descriptor
-** +-----+-----------------+ /
-** | 0 | packet 1 length | /
-** +-----------------------+ -\
-** | Buffer 2 Context | \
-** +-----------------------+ \
-** | 0xC0000000 | / Second Bucket Descriptor
-** +-----+-----------------+ /
-** | 0 | packet 2 length | /
-** +-----+-----------------+ -
-** | ... | ----- more bucket descriptors
-** +-----------------------+ -\
-** | Buffer n Context | \
-** +-----------------------+ \
-** | 0xC0000000 | / Last Bucket Descriptor
-** +-----+-----------------+ /
-** | 0 | packet n length | /
-** +-----+-----------------+ -
-**
-** Buffer Context values are those given to adapter in the TCB on calls to
-** RCPostRecvBuffers().
-**
-*/
-
-/*
-** Transaction Control Block (TCB) structure
-**
-** A structure like this is filled in by the user and passed by reference to
-** RCI2OSendPacket() and RCPostRecvBuffers() functions. Minimum size is five
-** 32-bit words for one buffer with one segment descriptor.
-** MAX_NMBR_POST_BUFFERS_PER_MSG defines the maximum single segment buffers
-** that can be described in a given TCB.
-**
-** 32 0
-** +-----------------------+
-** | Buffer Count | Number of buffers in the TCB
-** +-----------------------+
-** | Buffer 1 Context | first buffer reference
-** +-----------------------+
-** | Buffer 1 Seg Count | number of segments in buffer
-** +-----------------------+
-** | Buffer 1 Seg Desc 1 | first segment descriptor (size, physical address)
-** +-----------------------+
-** | ... | more segment descriptors (size, physical address)
-** +-----------------------+
-** | Buffer 1 Seg Desc n | last segment descriptor (size, physical address)
-** +-----------------------+
-** | Buffer 2 Context | second buffer reference
-** +-----------------------+
-** | Buffer 2 Seg Count | number of segments in buffer
-** +-----------------------+
-** | Buffer 2 Seg Desc 1 | segment descriptor (size, physical address)
-** +-----------------------+
-** | ... | more segment descriptors (size, physical address)
-** +-----------------------+
-** | Buffer 2 Seg Desc n |
-** +-----------------------+
-** | ... | more buffer descriptor blocks ...
-** +-----------------------+
-** | Buffer n Context |
-** +-----------------------+
-** | Buffer n Seg Count |
-** +-----------------------+
-** | Buffer n Seg Desc 1 |
-** +-----------------------+
-** | ... |
-** +-----------------------+
-** | Buffer n Seg Desc n |
-** +-----------------------+
-**
-**
-** A TCB for one contigous packet buffer would look like the following:
-**
-** 32 0
-** +-----------------------+
-** | 1 | one buffer in the TCB
-** +-----------------------+
-** | <user's Context> | user's buffer reference
-** +-----------------------+
-** | 1 | one segment buffer
-** +-----------------------+ _
-** | <buffer size> | size \
-** +-----------------------+ \ segment descriptor
-** | <physical address> | physical address of buffer /
-** +-----------------------+ _/
-**
-*/
-
- /* Buffer Segment Descriptor */
-typedef struct {
- U32 size;
- U32 phyAddress;
-} BSD, *PBSD;
-
-typedef PU32 PRCTCB;
-/*
-** -------------------------------------------------------------------------
-** Exported functions comprising the API to the LAN I2O message transport layer
-** -------------------------------------------------------------------------
-*/
-
- /*
- ** InitRCI2OMsgLayer()
- **
- ** Called once prior to using the I2O LAN message transport layer. User
- ** provides both the physical and virual address of a locked page buffer
- ** that is used as a private buffer for the RedCreek I2O message
- ** transport layer. This buffer must be a contigous memory block of a
- ** minimum of 16K bytes and long word aligned. The user also must provide
- ** the base address of the RedCreek PCI adapter assigned by BIOS or operating
- ** system.
- **
- ** Inputs: dev - the net_device struct for the device.
- ** TransmitCallbackFunction - address of user's TX callback function
- ** ReceiveCallbackFunction - address of user's RX callback function
- ** RebootCallbackFunction - address of user's reboot callback function
- **
- */
-RC_RETURN RCInitI2OMsgLayer (struct net_device *dev,
- PFNTXCALLBACK TransmitCallbackFunction,
- PFNRXCALLBACK ReceiveCallbackFunction,
- PFNCALLBACK RebootCallbackFunction);
-
- /*
- ** RCSetRavlinIPandMask()
- **
- ** Set the Ravlin 45/PCI cards IP address and network mask.
- **
- ** IP address and mask must be in network byte order.
- ** For example, IP address 1.2.3.4 and mask 255.255.255.0 would be
- ** 0x04030201 and 0x00FFFFFF on a little endian machine.
- **
- */
-RC_RETURN RCSetRavlinIPandMask (struct net_device *dev, U32 ipAddr,
- U32 netMask);
-
-/*
-** =========================================================================
-** RCGetRavlinIPandMask()
-**
-** get the IP address and MASK from the card
-**
-** =========================================================================
-*/
-RC_RETURN
-RCGetRavlinIPandMask (struct net_device *dev, PU32 pIpAddr, PU32 pNetMask,
- PFNWAITCALLBACK WaitCallback);
-
- /*
- ** RCProcI2OMsgQ()
- **
- ** Called from user's polling loop or Interrupt Service Routine for a PCI
- ** interrupt from the RedCreek PCI adapter. User responsible for determining
- ** and hooking the PCI interrupt. This function will call the registered
- ** callback functions, TransmitCallbackFunction or ReceiveCallbackFunction,
- ** if a TX or RX transaction has completed.
- */
-irqreturn_t RCProcI2OMsgQ (struct net_device *dev);
-
- /*
- ** Disable and Enable I2O interrupts. I2O interrupts are enabled at Init time
- ** but can be disabled and re-enabled through these two function calls.
- ** Packets will still be put into any posted received buffers and packets will
- ** be sent through RCI2OSendPacket() functions. Disabling I2O interrupts
- ** will prevent hardware interrupt to host even though the outbound I2O msg
- ** queue is not emtpy.
- */
-RC_RETURN RCEnableI2OInterrupts (struct net_device *dev);
-RC_RETURN RCDisableI2OInterrupts (struct net_device *dev);
-
- /*
- ** RCPostRecvBuffers()
- **
- ** Post user's page locked buffers for use by the PCI adapter to
- ** return ethernet packets received from the LAN. Transaction Control Block,
- ** provided by user, contains buffer descriptor(s) which includes a buffer
- ** context number along with buffer size and physical address. See TCB above.
- ** The buffer context and actual packet length are returned to the
- ** ReceiveCallbackFunction when packets have been received. Buffers posted
- ** to the RedCreek adapter are considered owned by the adapter until the
- ** context is return to user through the ReceiveCallbackFunction.
- */
-RC_RETURN RCPostRecvBuffers (struct net_device *dev,
- PRCTCB pTransactionCtrlBlock);
-#define MAX_NMBR_POST_BUFFERS_PER_MSG 32
-
- /*
- ** RCI2OSendPacket()
- **
- ** Send user's ethernet packet from a locked page buffer.
- ** Packet must have full MAC header, however without a CRC.
- ** Initiator context is a user provided value that is returned
- ** to the TransmitCallbackFunction when packet buffer is free.
- ** Transmit buffer are considered owned by the adapter until context's
- ** returned to user through the TransmitCallbackFunction.
- */
-RC_RETURN RCI2OSendPacket (struct net_device *dev,
- U32 context, PRCTCB pTransactionCtrlBlock);
-
- /* Ethernet Link Statistics structure */
-typedef struct tag_RC_link_stats {
- U32 TX_good; /* good transmit frames */
- U32 TX_maxcol; /* frames not TX due to MAX collisions */
- U32 TX_latecol; /* frames not TX due to late collisions */
- U32 TX_urun; /* frames not TX due to DMA underrun */
- U32 TX_crs; /* frames TX with lost carrier sense */
- U32 TX_def; /* frames deferred due to activity on link */
- U32 TX_singlecol; /* frames TX with one and only on collision */
- U32 TX_multcol; /* frames TX with more than one collision */
- U32 TX_totcol; /* total collisions detected during TX */
- U32 Rcv_good; /* good frames received */
- U32 Rcv_CRCerr; /* frames RX and discarded with CRC errors */
- U32 Rcv_alignerr; /* frames RX with alignment and CRC errors */
- U32 Rcv_reserr; /* good frames discarded due to no RX buffer */
- U32 Rcv_orun; /* RX frames lost due to FIFO overrun */
- U32 Rcv_cdt; /* RX frames with collision during RX */
- U32 Rcv_runt; /* RX frames shorter than 64 bytes */
-} RCLINKSTATS, *P_RCLINKSTATS;
-
- /*
- ** RCGetLinkStatistics()
- **
- ** Returns link statistics in user's structure at address StatsReturnAddr
- ** If given, not NULL, the function WaitCallback is called during the wait
- ** loop while waiting for the adapter to respond.
- */
-RC_RETURN RCGetLinkStatistics (struct net_device *dev,
- P_RCLINKSTATS StatsReturnAddr,
- PFNWAITCALLBACK WaitCallback);
-
- /*
- ** RCGetLinkStatus()
- **
- ** Return link status, up or down, to user's location addressed by ReturnAddr.
- ** If given, not NULL, the function WaitCallback is called during the wait
- ** loop while waiting for the adapter to respond.
- */
-RC_RETURN RCGetLinkStatus (struct net_device *dev,
- PU32 pReturnStatus, PFNWAITCALLBACK WaitCallback);
-
- /* Link Status defines - value returned in pReturnStatus */
-#define RC_LAN_LINK_STATUS_DOWN 0
-#define RC_LAN_LINK_STATUS_UP 1
-
- /*
- ** RCGetMAC()
- **
- ** Get the current MAC address assigned to user. RedCreek Ravlin 45/PCI
- ** has two MAC addresses. One which is private to the PCI Card, and
- ** another MAC which is given to the user as its link layer MAC address. The
- ** adapter runs in promiscous mode because of the dual address requirement.
- ** The MAC address is returned to the unsigned char array pointer to by mac.
- */
-RC_RETURN RCGetMAC (struct net_device *dev, PFNWAITCALLBACK WaitCallback);
-
- /*
- ** RCSetMAC()
- **
- ** Set a new user port MAC address. This address will be returned on
- ** subsequent RCGetMAC() calls.
- */
-RC_RETURN RCSetMAC (struct net_device *dev, PU8 mac);
-
- /*
- ** RCSetLinkSpeed()
- **
- ** set adapter's link speed based on given input code.
- */
-RC_RETURN RCSetLinkSpeed (struct net_device *dev, U16 LinkSpeedCode);
- /* Set link speed codes */
-#define LNK_SPD_AUTO_NEG_NWAY 0
-#define LNK_SPD_100MB_FULL 1
-#define LNK_SPD_100MB_HALF 2
-#define LNK_SPD_10MB_FULL 3
-#define LNK_SPD_10MB_HALF 4
-
- /*
- ** RCGetLinkSpeed()
- **
- ** Return link speed code.
- */
- /* Return link speed codes */
-#define LNK_SPD_UNKNOWN 0
-#define LNK_SPD_100MB_FULL 1
-#define LNK_SPD_100MB_HALF 2
-#define LNK_SPD_10MB_FULL 3
-#define LNK_SPD_10MB_HALF 4
-
-RC_RETURN
-RCGetLinkSpeed (struct net_device *dev, PU32 pLinkSpeedCode,
- PFNWAITCALLBACK WaitCallback);
-/*
-** =========================================================================
-** RCSetPromiscuousMode(struct net_device *dev, U16 Mode)
-**
-** Defined values for Mode:
-** 0 - turn off promiscuous mode
-** 1 - turn on promiscuous mode
-**
-** =========================================================================
-*/
-#define PROMISCUOUS_MODE_OFF 0
-#define PROMISCUOUS_MODE_ON 1
-RC_RETURN RCSetPromiscuousMode (struct net_device *dev, U16 Mode);
-/*
-** =========================================================================
-** RCGetPromiscuousMode(struct net_device *dev, PU32 pMode, PFNWAITCALLBACK WaitCallback)
-**
-** get promiscuous mode setting
-**
-** Possible return values placed in pMode:
-** 0 = promisuous mode not set
-** 1 = promisuous mode is set
-**
-** =========================================================================
-*/
-RC_RETURN
-RCGetPromiscuousMode (struct net_device *dev, PU32 pMode,
- PFNWAITCALLBACK WaitCallback);
-
-/*
-** =========================================================================
-** RCSetBroadcastMode(struct net_device *dev, U16 Mode)
-**
-** Defined values for Mode:
-** 0 - turn off promiscuous mode
-** 1 - turn on promiscuous mode
-**
-** =========================================================================
-*/
-#define BROADCAST_MODE_OFF 0
-#define BROADCAST_MODE_ON 1
-RC_RETURN RCSetBroadcastMode (struct net_device *dev, U16 Mode);
-/*
-** =========================================================================
-** RCGetBroadcastMode(struct net_device *dev, PU32 pMode, PFNWAITCALLBACK WaitCallback)
-**
-** get broadcast mode setting
-**
-** Possible return values placed in pMode:
-** 0 = broadcast mode not set
-** 1 = broadcast mode is set
-**
-** =========================================================================
-*/
-RC_RETURN
-RCGetBroadcastMode (struct net_device *dev, PU32 pMode,
- PFNWAITCALLBACK WaitCallback);
-/*
-** =========================================================================
-** RCReportDriverCapability(struct net_device *dev, U32 capability)
-**
-** Currently defined bits:
-** WARM_REBOOT_CAPABLE 0x01
-**
-** =========================================================================
-*/
-RC_RETURN RCReportDriverCapability (struct net_device *dev, U32 capability);
-
-/*
-** RCGetFirmwareVer()
-**
-** Return firmware version in the form "SoftwareVersion : Bt BootVersion"
-**
-** WARNING: user's space pointed to by pFirmString should be at least 60 bytes.
-*/
-RC_RETURN
-RCGetFirmwareVer (struct net_device *dev, PU8 pFirmString,
- PFNWAITCALLBACK WaitCallback);
-
-/*
-** ----------------------------------------------
-** LAN adapter Reset and Shutdown functions
-** ----------------------------------------------
-*/
- /* resource flag bit assignments for RCResetLANCard() & RCShutdownLANCard() */
-#define RC_RESOURCE_RETURN_POSTED_RX_BUCKETS 0x0001
-#define RC_RESOURCE_RETURN_PEND_TX_BUFFERS 0x0002
-
- /*
- ** RCResetLANCard()
- **
- ** Reset LAN card operation. Causes a software reset of the ethernet
- ** controller and restarts the command and receive units. Depending on
- ** the ResourceFlags given, the buffers are either returned to the
- ** host with reply status of I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER and
- ** detailed status of I2O_LAN_DSC_CANCELED (new receive buffers must be
- ** posted after issuing this) OR the buffers are kept and reused by
- ** the ethernet controller. If CallbackFunction is not NULL, the function
- ** will be called when the reset is complete. If the CallbackFunction is
- ** NULL,a 1 will be put into the ReturnAddr after waiting for the reset
- ** to complete (please disable I2O interrupts during this method).
- ** Any outstanding transmit or receive buffers that are complete will be
- ** returned via the normal reply messages before the requested resource
- ** buffers are returned.
- ** A call to RCPostRecvBuffers() is needed to return the ethernet to full
- ** operation if the receive buffers were returned during LANReset.
- ** Note: The IOP status is not affected by a LAN reset.
- */
-RC_RETURN RCResetLANCard (struct net_device *dev, U16 ResourceFlags,
- PU32 ReturnAddr, PFNCALLBACK CallbackFunction);
-
- /*
- ** RCShutdownLANCard()
- **
- ** Shutdown LAN card operation and put into an idle (suspended) state.
- ** The LAN card is restarted with RCResetLANCard() function.
- ** Depending on the ResourceFlags given, the buffers are either returned
- ** to the host with reply status of I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER
- ** and detailed status of I2O_LAN_DSC_CANCELED (new receive buffers must be
- ** posted after issuing this) OR the buffers are kept and reused by
- ** the ethernet controller. If CallbackFunction is not NULL, the function
- ** will be called when the reset is complete. If the CallbackFunction is
- ** NULL,a 1 will be put into the ReturnAddr after waiting for the reset
- ** to complete (please disable I2O interrupts during this method).
- ** Any outstanding transmit or receive buffers that are complete will be
- ** returned via the normal reply messages before the requested resource
- ** buffers are returned.
- ** Note: The IOP status is not affected by a LAN shutdown.
- */
-RC_RETURN
-RCShutdownLANCard (struct net_device *dev, U16 ResourceFlags, PU32 ReturnAddr,
- PFNCALLBACK CallbackFunction);
-
- /*
- ** RCResetIOP();
- ** Initializes IOPState to I2O_IOP_STATE_RESET.
- ** Stops access to outbound message Q.
- ** Discards any outstanding transmit or posted receive buffers.
- ** Clears outbound message Q.
- */
-RC_RETURN RCResetIOP (struct net_device *dev);
-
-#endif /* RCLANMTL_H */
+++ /dev/null
-/*
-**
-** RCpci45.c
-**
-**
-**
-** ---------------------------------------------------------------------
-** --- Copyright (c) 1998, 1999, RedCreek Communications Inc. ---
-** --- All rights reserved. ---
-** ---------------------------------------------------------------------
-**
-** Written by Pete Popov and Brian Moyle.
-**
-** Known Problems
-**
-** None known at this time.
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-** GNU General Public License for more details.
-
-** You should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Francois Romieu, Apr 2003: Converted to pci DMA mapping API.
-**
-** Pete Popov, Oct 2001: Fixed a few bugs to make the driver functional
-** again. Note that this card is not supported or manufactured by
-** RedCreek anymore.
-**
-** Rasmus Andersen, December 2000: Converted to new PCI API and general
-** cleanup.
-**
-** Pete Popov, January 11,99: Fixed a couple of 2.1.x problems
-** (virt_to_bus() not called), tested it under 2.2pre5 (as a module), and
-** added a #define(s) to enable the use of the same file for both, the 2.0.x
-** kernels as well as the 2.1.x.
-**
-** Ported to 2.1.x by Alan Cox 1998/12/9.
-**
-** Sometime in mid 1998, written by Pete Popov and Brian Moyle.
-**
-***************************************************************************/
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/in.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/timer.h>
-
-#include <asm/irq.h> /* For NR_IRQS only. */
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-
-static char version[] __initdata =
- "RedCreek Communications PCI linux driver version 2.21\n";
-
-#define RC_LINUX_MODULE
-#include "rclanmtl.h"
-#include "rcif.h"
-
-#define RUN_AT(x) (jiffies + (x))
-
-#define NEW_MULTICAST
-
-#define MAX_ETHER_SIZE 1520
-#define MAX_NMBR_RCV_BUFFERS 96
-#define RC_POSTED_BUFFERS_LOW_MARK MAX_NMBR_RCV_BUFFERS-16
-#define BD_SIZE 3 /* Bucket Descriptor size */
-#define BD_LEN_OFFSET 2 /* Bucket Descriptor offset to length field */
-
-/* RedCreek LAN device Target ID */
-#define RC_LAN_TARGET_ID 0x10
-/* RedCreek's OSM default LAN receive Initiator */
-#define DEFAULT_RECV_INIT_CONTEXT 0xA17
-
-/* minimum msg buffer size needed by the card
- * Note that the size of this buffer is hard code in the
- * ipsec card's firmware. Thus, the size MUST be a minimum
- * of 16K. Otherwise the card will end up using memory
- * that does not belong to it.
- */
-#define MSG_BUF_SIZE 16384
-
-/* 2003/04/20: I don't know about the hardware ability but the driver won't
- * play safe with 64 bit addressing and DAC without NETIF_F_HIGHDMA doesn't
- * really make sense anyway. Let's play safe - romieu.
- */
-#define RCPCI45_DMA_MASK ((u64) 0xffffffff)
-
-static U32 DriverControlWord;
-
-static void rc_timer (unsigned long);
-
-static int RCopen (struct net_device *);
-static int RC_xmit_packet (struct sk_buff *, struct net_device *);
-static irqreturn_t RCinterrupt (int, void *, struct pt_regs *);
-static int RCclose (struct net_device *dev);
-static struct net_device_stats *RCget_stats (struct net_device *);
-static int RCioctl (struct net_device *, struct ifreq *, int);
-static int RCconfig (struct net_device *, struct ifmap *);
-static void RCxmit_callback (U32, U16, PU32, struct net_device *);
-static void RCrecv_callback (U32, U8, U32, PU32, struct net_device *);
-static void RCreset_callback (U32, U32, U32, struct net_device *);
-static void RCreboot_callback (U32, U32, U32, struct net_device *);
-static int RC_allocate_and_post_buffers (struct net_device *, int);
-
-static struct pci_device_id rcpci45_pci_table[] = {
- { PCI_VENDOR_ID_REDCREEK, PCI_DEVICE_ID_RC45, PCI_ANY_ID, PCI_ANY_ID,},
- {}
-};
-MODULE_DEVICE_TABLE (pci, rcpci45_pci_table);
-MODULE_LICENSE("GPL");
-
-static void __devexit
-rcpci45_remove_one (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
- PDPA pDpa = dev->priv;
-
- RCResetIOP (dev);
- unregister_netdev (dev);
- free_irq (dev->irq, dev);
- iounmap ((void *) dev->base_addr);
- pci_release_regions (pdev);
- pci_free_consistent (pdev, MSG_BUF_SIZE, pDpa->msgbuf,
- pDpa->msgbuf_dma);
- if (pDpa->pPab)
- kfree (pDpa->pPab);
- free_netdev (dev);
- pci_set_drvdata (pdev, NULL);
-}
-
-static int
-rcpci45_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- unsigned long *vaddr;
- PDPA pDpa;
- int error;
- static int card_idx = -1;
- struct net_device *dev;
- unsigned long pci_start, pci_len;
-
- card_idx++;
-
- /*
- * Allocate and fill new device structure.
- * We need enough for struct net_device plus DPA plus the LAN
- * API private area, which requires a minimum of 16KB. The top
- * of the allocated area will be assigned to struct net_device;
- * the next chunk will be assigned to DPA; and finally, the rest
- * will be assigned to the LAN API layer.
- */
-
- dev = alloc_etherdev(sizeof(*pDpa));
- if (!dev) {
- printk (KERN_ERR
- "(rcpci45 driver:) alloc_etherdev alloc failed\n");
- error = -ENOMEM;
- goto err_out;
- }
-
- SET_MODULE_OWNER(dev);
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- error = pci_enable_device (pdev);
- if (error) {
- printk (KERN_ERR
- "(rcpci45 driver:) %d: pci enable device error\n",
- card_idx);
- goto err_out;
- }
- pci_start = pci_resource_start (pdev, 0);
- pci_len = pci_resource_len (pdev, 0);
- printk("pci_start %lx pci_len %lx\n", pci_start, pci_len);
-
- pci_set_drvdata (pdev, dev);
-
- pDpa = dev->priv;
- pDpa->id = card_idx;
- pDpa->pci_dev = pdev;
- pDpa->pci_addr = pci_start;
-
- if (!pci_start || !(pci_resource_flags (pdev, 0) & IORESOURCE_MEM)) {
- printk (KERN_ERR
- "(rcpci45 driver:) No PCI mem resources! Aborting\n");
- error = -EBUSY;
- goto err_out_free_dev;
- }
-
- /*
- * pDpa->msgbuf is where the card will dma the I2O
- * messages. Thus, we need contiguous physical pages of memory.
- * 2003/04/20: pci_alloc_consistent() provides well over the needed
- * alignment on a 256 bytes boundary for the LAN API private area.
- * Thus it isn't needed anymore to align it by hand.
- */
- pDpa->msgbuf = pci_alloc_consistent (pdev, MSG_BUF_SIZE,
- &pDpa->msgbuf_dma);
- if (!pDpa->msgbuf) {
- printk (KERN_ERR "(rcpci45 driver:) \
- Could not allocate %d byte memory for the \
- private msgbuf!\n", MSG_BUF_SIZE);
- error = -ENOMEM;
- goto err_out_free_dev;
- }
-
- /* The adapter is accessible through memory-access read/write, not
- * I/O read/write. Thus, we need to map it to some virtual address
- * area in order to access the registers as normal memory.
- */
- error = pci_request_regions (pdev, dev->name);
- if (error)
- goto err_out_free_msgbuf;
-
- error = pci_set_dma_mask (pdev, RCPCI45_DMA_MASK);
- if (error) {
- printk (KERN_ERR
- "(rcpci45 driver:) pci_set_dma_mask failed!\n");
- goto err_out_free_region;
- }
-
- vaddr = (ulong *) ioremap (pci_start, pci_len);
- if (!vaddr) {
- printk (KERN_ERR
- "(rcpci45 driver:) \
- Unable to remap address range from %lu to %lu\n",
- pci_start, pci_start + pci_len);
- error = -EIO;
- goto err_out_free_region;
- }
-
- dev->base_addr = (unsigned long) vaddr;
- dev->irq = pdev->irq;
- dev->open = &RCopen;
- dev->hard_start_xmit = &RC_xmit_packet;
- dev->stop = &RCclose;
- dev->get_stats = &RCget_stats;
- dev->do_ioctl = &RCioctl;
- dev->set_config = &RCconfig;
-
- if ((error = register_netdev(dev)))
- goto err_out_iounmap;
-
- return 0; /* success */
-
-err_out_iounmap:
- iounmap((void *) dev->base_addr);
-err_out_free_region:
- pci_release_regions (pdev);
-err_out_free_msgbuf:
- pci_free_consistent (pdev, MSG_BUF_SIZE, pDpa->msgbuf,
- pDpa->msgbuf_dma);
-err_out_free_dev:
- free_netdev (dev);
-err_out:
- card_idx--;
- return error;
-}
-
-static struct pci_driver rcpci45_driver = {
- .name = "rcpci45",
- .id_table = rcpci45_pci_table,
- .probe = rcpci45_init_one,
- .remove = __devexit_p(rcpci45_remove_one),
-};
-
-static int __init
-rcpci_init_module (void)
-{
- int rc = pci_module_init (&rcpci45_driver);
- if (!rc)
- printk (KERN_ERR "%s", version);
- return rc;
-}
-
-static int
-RCopen (struct net_device *dev)
-{
- int post_buffers = MAX_NMBR_RCV_BUFFERS;
- PDPA pDpa = dev->priv;
- int count = 0;
- int requested = 0;
- int error;
-
- if (pDpa->nexus) {
- /* This is not the first time RCopen is called. Thus,
- * the interface was previously opened and later closed
- * by RCclose(). RCclose() does a Shutdown; to wake up
- * the adapter, a reset is mandatory before we can post
- * receive buffers. However, if the adapter initiated
- * a reboot while the interface was closed -- and interrupts
- * were turned off -- we need will need to reinitialize
- * the adapter, rather than simply waking it up.
- */
- printk (KERN_INFO "Waking up adapter...\n");
- RCResetLANCard (dev, 0, 0, 0);
- } else {
- pDpa->nexus = 1;
- /*
- * RCInitI2OMsgLayer is done only once, unless the
- * adapter was sent a warm reboot
- */
- error = RCInitI2OMsgLayer (dev, (PFNTXCALLBACK) RCxmit_callback,
- (PFNRXCALLBACK) RCrecv_callback,
- (PFNCALLBACK) RCreboot_callback);
- if (error) {
- printk (KERN_ERR "%s: Unable to init msg layer (%x)\n",
- dev->name, error);
- goto err_out;
- }
- if ((error = RCGetMAC (dev, NULL))) {
- printk (KERN_ERR "%s: Unable to get adapter MAC\n",
- dev->name);
- goto err_out;
- }
- }
-
- /* Request a shared interrupt line. */
- error = request_irq (dev->irq, RCinterrupt, SA_SHIRQ, dev->name, dev);
- if (error) {
- printk (KERN_ERR "%s: unable to get IRQ %d\n",
- dev->name, dev->irq);
- goto err_out;
- }
-
- DriverControlWord |= WARM_REBOOT_CAPABLE;
- RCReportDriverCapability (dev, DriverControlWord);
-
- printk (KERN_INFO "%s: RedCreek Communications IPSEC VPN adapter\n",
- dev->name);
-
- RCEnableI2OInterrupts (dev);
-
- while (post_buffers) {
- if (post_buffers > MAX_NMBR_POST_BUFFERS_PER_MSG)
- requested = MAX_NMBR_POST_BUFFERS_PER_MSG;
- else
- requested = post_buffers;
- count = RC_allocate_and_post_buffers (dev, requested);
-
- if (count < requested) {
- /*
- * Check to see if we were able to post
- * any buffers at all.
- */
- if (post_buffers == MAX_NMBR_RCV_BUFFERS) {
- printk (KERN_ERR "%s: \
- unable to allocate any buffers\n",
- dev->name);
- goto err_out_free_irq;
- }
- printk (KERN_WARNING "%s: \
- unable to allocate all requested buffers\n", dev->name);
- break; /* we'll try to post more buffers later */
- } else
- post_buffers -= count;
- }
- pDpa->numOutRcvBuffers = MAX_NMBR_RCV_BUFFERS - post_buffers;
- pDpa->shutdown = 0; /* just in case */
- netif_start_queue (dev);
- return 0;
-
-err_out_free_irq:
- free_irq (dev->irq, dev);
-err_out:
- return error;
-}
-
-static int
-RC_xmit_packet (struct sk_buff *skb, struct net_device *dev)
-{
-
- PDPA pDpa = dev->priv;
- singleTCB tcb;
- psingleTCB ptcb = &tcb;
- RC_RETURN status = 0;
-
- netif_stop_queue (dev);
-
- if (pDpa->shutdown || pDpa->reboot) {
- printk ("RC_xmit_packet: tbusy!\n");
- return 1;
- }
-
- /*
- * The user is free to reuse the TCB after RCI2OSendPacket()
- * returns, since the function copies the necessary info into its
- * own private space. Thus, our TCB can be a local structure.
- * The skb, on the other hand, will be freed up in our interrupt
- * handler.
- */
-
- ptcb->bcount = 1;
-
- /*
- * we'll get the context when the adapter interrupts us to tell us that
- * the transmission is done. At that time, we can free skb.
- */
- ptcb->b.context = (U32) skb;
- ptcb->b.scount = 1;
- ptcb->b.size = skb->len;
- ptcb->b.addr = pci_map_single(pDpa->pci_dev, skb->data, skb->len,
- PCI_DMA_TODEVICE);
-
- if ((status = RCI2OSendPacket (dev, (U32) NULL, (PRCTCB) ptcb))
- != RC_RTN_NO_ERROR) {
- printk ("%s: send error 0x%x\n", dev->name, (uint) status);
- return 1;
- } else {
- dev->trans_start = jiffies;
- netif_wake_queue (dev);
- }
- /*
- * That's it!
- */
- return 0;
-}
-
-/*
- * RCxmit_callback()
- *
- * The transmit callback routine. It's called by RCProcI2OMsgQ()
- * because the adapter is done with one or more transmit buffers and
- * it's returning them to us, or we asked the adapter to return the
- * outstanding transmit buffers by calling RCResetLANCard() with
- * RC_RESOURCE_RETURN_PEND_TX_BUFFERS flag.
- * All we need to do is free the buffers.
- */
-static void
-RCxmit_callback (U32 Status,
- U16 PcktCount, PU32 BufferContext, struct net_device *dev)
-{
- struct sk_buff *skb;
- PDPA pDpa = dev->priv;
-
- if (!pDpa) {
- printk (KERN_ERR "%s: Fatal Error in xmit callback, !pDpa\n",
- dev->name);
- return;
- }
-
- if (Status != I2O_REPLY_STATUS_SUCCESS)
- printk (KERN_INFO "%s: xmit_callback: Status = 0x%x\n",
- dev->name, (uint) Status);
- if (pDpa->shutdown || pDpa->reboot)
- printk (KERN_INFO "%s: xmit callback: shutdown||reboot\n",
- dev->name);
-
- while (PcktCount--) {
- skb = (struct sk_buff *) (BufferContext[0]);
- BufferContext++;
- pci_unmap_single(pDpa->pci_dev, BufferContext[1], skb->len,
- PCI_DMA_TODEVICE);
- dev_kfree_skb_irq (skb);
- }
- netif_wake_queue (dev);
-}
-
-static void
-RCreset_callback (U32 Status, U32 p1, U32 p2, struct net_device *dev)
-{
- PDPA pDpa = dev->priv;
-
- printk ("RCreset_callback Status 0x%x\n", (uint) Status);
- /*
- * Check to see why we were called.
- */
- if (pDpa->shutdown) {
- printk (KERN_INFO "%s: shutting down interface\n",
- dev->name);
- pDpa->shutdown = 0;
- pDpa->reboot = 0;
- } else if (pDpa->reboot) {
- printk (KERN_INFO "%s: reboot, shutdown adapter\n",
- dev->name);
- /*
- * We don't set any of the flags in RCShutdownLANCard()
- * and we don't pass a callback routine to it.
- * The adapter will have already initiated the reboot by
- * the time the function returns.
- */
- RCDisableI2OInterrupts (dev);
- RCShutdownLANCard (dev, 0, 0, 0);
- printk (KERN_INFO "%s: scheduling timer...\n", dev->name);
- init_timer (&pDpa->timer);
- pDpa->timer.expires = RUN_AT ((40 * HZ) / 10); /* 4 sec. */
- pDpa->timer.data = (unsigned long) dev;
- pDpa->timer.function = &rc_timer; /* timer handler */
- add_timer (&pDpa->timer);
- }
-}
-
-static void
-RCreboot_callback (U32 Status, U32 p1, U32 p2, struct net_device *dev)
-{
- PDPA pDpa = dev->priv;
-
- printk (KERN_INFO "%s: reboot: rcv buffers outstanding = %d\n",
- dev->name, (uint) pDpa->numOutRcvBuffers);
-
- if (pDpa->shutdown) {
- printk (KERN_INFO "%s: skip reboot, shutdown initiated\n",
- dev->name);
- return;
- }
- pDpa->reboot = 1;
- /*
- * OK, we reset the adapter and ask it to return all
- * outstanding transmit buffers as well as the posted
- * receive buffers. When the adapter is done returning
- * those buffers, it will call our RCreset_callback()
- * routine. In that routine, we'll call RCShutdownLANCard()
- * to tell the adapter that it's OK to start the reboot and
- * schedule a timer callback routine to execute 3 seconds
- * later; this routine will reinitialize the adapter at that time.
- */
- RCResetLANCard (dev, RC_RESOURCE_RETURN_POSTED_RX_BUCKETS |
- RC_RESOURCE_RETURN_PEND_TX_BUFFERS, 0,
- (PFNCALLBACK) RCreset_callback);
-}
-
-/*
- * RCrecv_callback()
- *
- * The receive packet callback routine. This is called by
- * RCProcI2OMsgQ() after the adapter posts buffers which have been
- * filled (one ethernet packet per buffer).
- */
-static void
-RCrecv_callback (U32 Status,
- U8 PktCount,
- U32 BucketsRemain,
- PU32 PacketDescBlock, struct net_device *dev)
-{
-
- U32 len, count;
- PDPA pDpa = dev->priv;
- struct sk_buff *skb;
- singleTCB tcb;
- psingleTCB ptcb = &tcb;
-
- ptcb->bcount = 1;
-
- if ((pDpa->shutdown || pDpa->reboot) && !Status)
- printk (KERN_INFO "%s: shutdown||reboot && !Status (%d)\n",
- dev->name, PktCount);
-
- if ((Status != I2O_REPLY_STATUS_SUCCESS) || pDpa->shutdown) {
- /*
- * Free whatever buffers the adapter returned, but don't
- * pass them to the kernel.
- */
-
- if (!pDpa->shutdown && !pDpa->reboot)
- printk (KERN_INFO "%s: recv error status = 0x%x\n",
- dev->name, (uint) Status);
- else
- printk (KERN_DEBUG "%s: Returning %d buffs stat 0x%x\n",
- dev->name, PktCount, (uint) Status);
- /*
- * TO DO: check the nature of the failure and put the
- * adapter in failed mode if it's a hard failure.
- * Send a reset to the adapter and free all outstanding memory.
- */
- if (PacketDescBlock) {
- while (PktCount--) {
- skb = (struct sk_buff *) PacketDescBlock[0];
- dev_kfree_skb (skb);
- pDpa->numOutRcvBuffers--;
- /* point to next context field */
- PacketDescBlock += BD_SIZE;
- }
- }
- return;
- } else {
- while (PktCount--) {
- skb = (struct sk_buff *) PacketDescBlock[0];
- len = PacketDescBlock[2];
- skb->dev = dev;
- skb_put (skb, len); /* adjust length and tail */
- skb->protocol = eth_type_trans (skb, dev);
- netif_rx (skb); /* send the packet to the kernel */
- dev->last_rx = jiffies;
- pDpa->numOutRcvBuffers--;
- /* point to next context field */
- PacketDescBlock += BD_SIZE;
- }
- }
-
- /*
- * Replenish the posted receive buffers.
- * DO NOT replenish buffers if the driver has already
- * initiated a reboot or shutdown!
- */
-
- if (!pDpa->shutdown && !pDpa->reboot) {
- count = RC_allocate_and_post_buffers (dev,
- MAX_NMBR_RCV_BUFFERS -
- pDpa->numOutRcvBuffers);
- pDpa->numOutRcvBuffers += count;
- }
-
-}
-
-/*
- * RCinterrupt()
- *
- * Interrupt handler.
- * This routine sets up a couple of pointers and calls
- * RCProcI2OMsgQ(), which in turn process the message and
- * calls one of our callback functions.
- */
-static irqreturn_t
-RCinterrupt (int irq, void *dev_id, struct pt_regs *regs)
-{
-
- PDPA pDpa;
- struct net_device *dev = dev_id;
-
- pDpa = dev->priv;
-
- if (pDpa->shutdown)
- printk (KERN_DEBUG "%s: shutdown, service irq\n",
- dev->name);
-
- return RCProcI2OMsgQ (dev);
-}
-
-#define REBOOT_REINIT_RETRY_LIMIT 4
-static void
-rc_timer (unsigned long data)
-{
- struct net_device *dev = (struct net_device *) data;
- PDPA pDpa = dev->priv;
- int init_status;
- static int retry;
- int post_buffers = MAX_NMBR_RCV_BUFFERS;
- int count = 0;
- int requested = 0;
-
- if (pDpa->reboot) {
- init_status =
- RCInitI2OMsgLayer (dev, (PFNTXCALLBACK) RCxmit_callback,
- (PFNRXCALLBACK) RCrecv_callback,
- (PFNCALLBACK) RCreboot_callback);
-
- switch (init_status) {
- case RC_RTN_NO_ERROR:
-
- pDpa->reboot = 0;
- pDpa->shutdown = 0; /* just in case */
- RCReportDriverCapability (dev, DriverControlWord);
- RCEnableI2OInterrupts (dev);
-
-
- if (!(dev->flags & IFF_UP)) {
- retry = 0;
- return;
- }
- while (post_buffers) {
- if (post_buffers >
- MAX_NMBR_POST_BUFFERS_PER_MSG)
- requested =
- MAX_NMBR_POST_BUFFERS_PER_MSG;
- else
- requested = post_buffers;
- count =
- RC_allocate_and_post_buffers (dev,
- requested);
- post_buffers -= count;
- if (count < requested)
- break;
- }
- pDpa->numOutRcvBuffers =
- MAX_NMBR_RCV_BUFFERS - post_buffers;
- printk ("Initialization done.\n");
- netif_wake_queue (dev);
- retry = 0;
- return;
- case RC_RTN_FREE_Q_EMPTY:
- retry++;
- printk (KERN_WARNING "%s inbound free q empty\n",
- dev->name);
- break;
- default:
- retry++;
- printk (KERN_WARNING "%s bad stat after reboot: %d\n",
- dev->name, init_status);
- break;
- }
-
- if (retry > REBOOT_REINIT_RETRY_LIMIT) {
- printk (KERN_WARNING "%s unable to reinitialize adapter after reboot\n", dev->name);
- printk (KERN_WARNING "%s shutting down interface\n", dev->name);
- RCDisableI2OInterrupts (dev);
- dev->flags &= ~IFF_UP;
- } else {
- printk (KERN_INFO "%s: rescheduling timer...\n",
- dev->name);
- init_timer (&pDpa->timer);
- pDpa->timer.expires = RUN_AT ((40 * HZ) / 10);
- pDpa->timer.data = (unsigned long) dev;
- pDpa->timer.function = &rc_timer;
- add_timer (&pDpa->timer);
- }
- } else
- printk (KERN_WARNING "%s: unexpected timer irq\n", dev->name);
-}
-
-static int
-RCclose (struct net_device *dev)
-{
- PDPA pDpa = dev->priv;
-
- printk("RCclose\n");
- netif_stop_queue (dev);
-
- if (pDpa->reboot) {
- printk (KERN_INFO "%s skipping reset -- adapter already in reboot mode\n", dev->name);
- dev->flags &= ~IFF_UP;
- pDpa->shutdown = 1;
- return 0;
- }
-
- pDpa->shutdown = 1;
-
- /*
- * We can't allow the driver to be unloaded until the adapter returns
- * all posted receive buffers. It doesn't hurt to tell the adapter
- * to return all posted receive buffers and outstanding xmit buffers,
- * even if there are none.
- */
-
- RCShutdownLANCard (dev, RC_RESOURCE_RETURN_POSTED_RX_BUCKETS |
- RC_RESOURCE_RETURN_PEND_TX_BUFFERS, 0,
- (PFNCALLBACK) RCreset_callback);
-
- dev->flags &= ~IFF_UP;
- return 0;
-}
-
-static struct net_device_stats *
-RCget_stats (struct net_device *dev)
-{
- RCLINKSTATS RCstats;
-
- PDPA pDpa = dev->priv;
-
- if (!pDpa) {
- return 0;
- } else if (!(dev->flags & IFF_UP)) {
- return 0;
- }
-
- memset (&RCstats, 0, sizeof (RCLINKSTATS));
- if ((RCGetLinkStatistics (dev, &RCstats, (void *) 0)) ==
- RC_RTN_NO_ERROR) {
-
- /* total packets received */
- pDpa->stats.rx_packets = RCstats.Rcv_good
- /* total packets transmitted */;
- pDpa->stats.tx_packets = RCstats.TX_good;
-
- pDpa->stats.rx_errors = RCstats.Rcv_CRCerr +
- RCstats.Rcv_alignerr + RCstats.Rcv_reserr +
- RCstats.Rcv_orun + RCstats.Rcv_cdt + RCstats.Rcv_runt;
-
- pDpa->stats.tx_errors = RCstats.TX_urun + RCstats.TX_crs +
- RCstats.TX_def + RCstats.TX_totcol;
-
- /*
- * This needs improvement.
- */
- pDpa->stats.rx_dropped = 0; /* no space in linux buffers */
- pDpa->stats.tx_dropped = 0; /* no space available in linux */
- pDpa->stats.multicast = 0; /* multicast packets received */
- pDpa->stats.collisions = RCstats.TX_totcol;
-
- /* detailed rx_errors: */
- pDpa->stats.rx_length_errors = 0;
- pDpa->stats.rx_over_errors = RCstats.Rcv_orun;
- pDpa->stats.rx_crc_errors = RCstats.Rcv_CRCerr;
- pDpa->stats.rx_frame_errors = 0;
- pDpa->stats.rx_fifo_errors = 0;
- pDpa->stats.rx_missed_errors = 0;
-
- /* detailed tx_errors */
- pDpa->stats.tx_aborted_errors = 0;
- pDpa->stats.tx_carrier_errors = 0;
- pDpa->stats.tx_fifo_errors = 0;
- pDpa->stats.tx_heartbeat_errors = 0;
- pDpa->stats.tx_window_errors = 0;
-
- return ((struct net_device_stats *) &(pDpa->stats));
- }
- return 0;
-}
-
-static int
-RCioctl (struct net_device *dev, struct ifreq *rq, int cmd)
-{
- RCuser_struct RCuser;
- PDPA pDpa = dev->priv;
-
- if (!capable (CAP_NET_ADMIN))
- return -EPERM;
-
- switch (cmd) {
-
- case RCU_PROTOCOL_REV:
- /*
- * Assign user protocol revision, to tell user-level
- * controller program whether or not it's in sync.
- */
- rq->ifr_ifru.ifru_data = (caddr_t) USER_PROTOCOL_REV;
- break;
-
- case RCU_COMMAND:
- {
- if (copy_from_user
- (&RCuser, rq->ifr_data, sizeof (RCuser)))
- return -EFAULT;
-
- dprintk ("RCioctl: RCuser_cmd = 0x%x\n", RCuser.cmd);
-
- switch (RCuser.cmd) {
- case RCUC_GETFWVER:
- RCUD_GETFWVER = &RCuser.RCUS_GETFWVER;
- RCGetFirmwareVer (dev,
- (PU8) & RCUD_GETFWVER->
- FirmString, NULL);
- break;
- case RCUC_GETINFO:
- RCUD_GETINFO = &RCuser.RCUS_GETINFO;
- RCUD_GETINFO->mem_start = dev->base_addr;
- RCUD_GETINFO->mem_end =
- dev->base_addr + pDpa->pci_addr_len;
- RCUD_GETINFO->base_addr = pDpa->pci_addr;
- RCUD_GETINFO->irq = dev->irq;
- break;
- case RCUC_GETIPANDMASK:
- RCUD_GETIPANDMASK = &RCuser.RCUS_GETIPANDMASK;
- RCGetRavlinIPandMask (dev,
- (PU32) &
- RCUD_GETIPANDMASK->IpAddr,
- (PU32) &
- RCUD_GETIPANDMASK->
- NetMask, NULL);
- break;
- case RCUC_GETLINKSTATISTICS:
- RCUD_GETLINKSTATISTICS =
- &RCuser.RCUS_GETLINKSTATISTICS;
- RCGetLinkStatistics (dev,
- (P_RCLINKSTATS) &
- RCUD_GETLINKSTATISTICS->
- StatsReturn, NULL);
- break;
- case RCUC_GETLINKSTATUS:
- RCUD_GETLINKSTATUS = &RCuser.RCUS_GETLINKSTATUS;
- RCGetLinkStatus (dev,
- (PU32) & RCUD_GETLINKSTATUS->
- ReturnStatus, NULL);
- break;
- case RCUC_GETMAC:
- RCUD_GETMAC = &RCuser.RCUS_GETMAC;
- RCGetMAC (dev, NULL);
- memcpy(RCUD_GETMAC, dev->dev_addr, 8);
- break;
- case RCUC_GETPROM:
- RCUD_GETPROM = &RCuser.RCUS_GETPROM;
- RCGetPromiscuousMode (dev,
- (PU32) & RCUD_GETPROM->
- PromMode, NULL);
- break;
- case RCUC_GETBROADCAST:
- RCUD_GETBROADCAST = &RCuser.RCUS_GETBROADCAST;
- RCGetBroadcastMode (dev,
- (PU32) & RCUD_GETBROADCAST->
- BroadcastMode, NULL);
- break;
- case RCUC_GETSPEED:
- if (!(dev->flags & IFF_UP)) {
- return -ENODATA;
- }
- RCUD_GETSPEED = &RCuser.RCUS_GETSPEED;
- RCGetLinkSpeed (dev,
- (PU32) & RCUD_GETSPEED->
- LinkSpeedCode, NULL);
- break;
- case RCUC_SETIPANDMASK:
- RCUD_SETIPANDMASK = &RCuser.RCUS_SETIPANDMASK;
- RCSetRavlinIPandMask (dev,
- (U32) RCUD_SETIPANDMASK->
- IpAddr,
- (U32) RCUD_SETIPANDMASK->
- NetMask);
- break;
- case RCUC_SETMAC:
- RCSetMAC (dev, (PU8) & RCUD_SETMAC->mac);
- break;
- case RCUC_SETSPEED:
- RCUD_SETSPEED = &RCuser.RCUS_SETSPEED;
- RCSetLinkSpeed (dev,
- (U16) RCUD_SETSPEED->
- LinkSpeedCode);
- break;
- case RCUC_SETPROM:
- RCUD_SETPROM = &RCuser.RCUS_SETPROM;
- RCSetPromiscuousMode (dev,
- (U16) RCUD_SETPROM->
- PromMode);
- break;
- case RCUC_SETBROADCAST:
- RCUD_SETBROADCAST = &RCuser.RCUS_SETBROADCAST;
- RCSetBroadcastMode (dev,
- (U16) RCUD_SETBROADCAST->
- BroadcastMode);
- break;
- default:
- RCUD_DEFAULT = &RCuser.RCUS_DEFAULT;
- RCUD_DEFAULT->rc = 0x11223344;
- break;
- }
- if (copy_to_user (rq->ifr_data, &RCuser,
- sizeof (RCuser)))
- return -EFAULT;
- break;
- } /* RCU_COMMAND */
-
- default:
- rq->ifr_ifru.ifru_data = (caddr_t) 0x12345678;
- return -EINVAL;
- }
- return 0;
-}
-
-static int
-RCconfig (struct net_device *dev, struct ifmap *map)
-{
- /*
- * To be completed ...
- */
- return 0;
- if (dev->flags & IFF_UP) /* can't act on a running interface */
- return -EBUSY;
-
- /* Don't allow changing the I/O address */
- if (map->base_addr != dev->base_addr) {
- printk (KERN_WARNING "%s Change I/O address not implemented\n",
- dev->name);
- return -EOPNOTSUPP;
- }
- return 0;
-}
-
-static void __exit
-rcpci_cleanup_module (void)
-{
- pci_unregister_driver (&rcpci45_driver);
-}
-
-module_init (rcpci_init_module);
-module_exit (rcpci_cleanup_module);
-
-static int
-RC_allocate_and_post_buffers (struct net_device *dev, int numBuffers)
-{
-
- int i;
- PU32 p;
- psingleB pB;
- struct sk_buff *skb;
- PDPA pDpa = dev->priv;
- RC_RETURN status;
- U32 res = 0;
-
- if (!numBuffers)
- return 0;
- else if (numBuffers > MAX_NMBR_POST_BUFFERS_PER_MSG) {
- printk (KERN_ERR "%s: Too many buffers requested!\n",
- dev->name);
- numBuffers = 32;
- }
-
- p = (PU32) kmalloc (sizeof (U32) + numBuffers * sizeof (singleB),
- GFP_DMA | GFP_ATOMIC);
-
- if (!p) {
- printk (KERN_WARNING "%s unable to allocate TCB\n",
- dev->name);
- goto out;
- }
-
- p[0] = 0; /* Buffer Count */
- pB = (psingleB) ((U32) p + sizeof (U32));/* point to the first buffer */
-
- for (i = 0; i < numBuffers; i++) {
- skb = dev_alloc_skb (MAX_ETHER_SIZE + 2);
- if (!skb) {
- printk (KERN_WARNING
- "%s: unable to allocate enough skbs!\n",
- dev->name);
- goto err_out_unmap;
- }
- skb_reserve (skb, 2); /* Align IP on 16 byte boundaries */
- pB->context = (U32) skb;
- pB->scount = 1; /* segment count */
- pB->size = MAX_ETHER_SIZE;
- pB->addr = pci_map_single(pDpa->pci_dev, skb->data,
- MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE);
- p[0]++;
- pB++;
- }
-
- if ((status = RCPostRecvBuffers (dev, (PRCTCB) p)) != RC_RTN_NO_ERROR) {
- printk (KERN_WARNING "%s: Post buffer failed, error 0x%x\n",
- dev->name, status);
- goto err_out_unmap;
- }
-out_free:
- res = p[0];
- kfree (p);
-out:
- return (res); /* return the number of posted buffers */
-
-err_out_unmap:
- for (; p[0] > 0; p[0]--) {
- --pB;
- skb = (struct sk_buff *) pB->context;
- pci_unmap_single(pDpa->pci_dev, pB->addr, MAX_ETHER_SIZE,
- PCI_DMA_FROMDEVICE);
- dev_kfree_skb (skb);
- }
- goto out_free;
-}
+++ /dev/null
-/*
- * smc91x.c
- * This is a driver for SMSC's 91C9x/91C1xx single-chip Ethernet devices.
- *
- * Copyright (C) 1996 by Erik Stahlman
- * Copyright (C) 2001 Standard Microsystems Corporation
- * Developed by Simple Network Magic Corporation
- * Copyright (C) 2003 Monta Vista Software, Inc.
- * Unified SMC91x driver by Nicolas Pitre
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Arguments:
- * io = for the base address
- * irq = for the IRQ
- * nowait = 0 for normal wait states, 1 eliminates additional wait states
- *
- * original author:
- * Erik Stahlman <erik@vt.edu>
- *
- * hardware multicast code:
- * Peter Cammaert <pc@denkart.be>
- *
- * contributors:
- * Daris A Nevil <dnevil@snmc.com>
- * Nicolas Pitre <nico@cam.org>
- * Russell King <rmk@arm.linux.org.uk>
- *
- * History:
- * 08/20/00 Arnaldo Melo fix kfree(skb) in smc_hardware_send_packet
- * 12/15/00 Christian Jullien fix "Warning: kfree_skb on hard IRQ"
- * 03/16/01 Daris A Nevil modified smc9194.c for use with LAN91C111
- * 08/22/01 Scott Anderson merge changes from smc9194 to smc91111
- * 08/21/01 Pramod B Bhardwaj added support for RevB of LAN91C111
- * 12/20/01 Jeff Sutherland initial port to Xscale PXA with DMA support
- * 04/07/03 Nicolas Pitre unified SMC91x driver, killed irq races,
- * more bus abstraction, big cleanup, etc.
- * 29/09/03 Russell King - add driver model support
- * - ethtool support
- * - convert to use generic MII interface
- * - add link up/down notification
- * - don't try to handle full negotiation in
- * smc_phy_configure
- * - clean up (and fix stack overrun) in PHY
- * MII read/write functions
- */
-static const char version[] =
- "smc91x.c: v1.0, mar 07 2003 by Nicolas Pitre <nico@cam.org>\n";
-
-/* Debugging level */
-#ifndef SMC_DEBUG
-#define SMC_DEBUG 0
-#endif
-
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/crc32.h>
-#include <linux/device.h>
-#include <linux/spinlock.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#include "smc91x.h"
-
-#ifdef CONFIG_ISA
-/*
- * the LAN91C111 can be at any of the following port addresses. To change,
- * for a slightly different card, you can add it to the array. Keep in
- * mind that the array must end in zero.
- */
-static unsigned int smc_portlist[] __initdata = {
- 0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0,
- 0x300, 0x320, 0x340, 0x360, 0x380, 0x3A0, 0x3C0, 0x3E0, 0
-};
-
-#ifndef SMC_IOADDR
-# define SMC_IOADDR -1
-#endif
-static unsigned long io = SMC_IOADDR;
-module_param(io, ulong, 0400);
-MODULE_PARM_DESC(io, "I/O base address");
-
-#ifndef SMC_IRQ
-# define SMC_IRQ -1
-#endif
-static int irq = SMC_IRQ;
-module_param(irq, int, 0400);
-MODULE_PARM_DESC(irq, "IRQ number");
-
-#endif /* CONFIG_ISA */
-
-#ifndef SMC_NOWAIT
-# define SMC_NOWAIT 0
-#endif
-static int nowait = SMC_NOWAIT;
-module_param(nowait, int, 0400);
-MODULE_PARM_DESC(nowait, "set to 1 for no wait state");
-
-/*
- * Transmit timeout, default 5 seconds.
- */
-static int watchdog = 5000;
-module_param(watchdog, int, 0400);
-MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds");
-
-MODULE_LICENSE("GPL");
-
-/*
- * The internal workings of the driver. If you are changing anything
- * here with the SMC stuff, you should have the datasheet and know
- * what you are doing.
- */
-#define CARDNAME "smc91x"
-
-/*
- * Use power-down feature of the chip
- */
-#define POWER_DOWN 1
-
-/*
- * Wait time for memory to be free. This probably shouldn't be
- * tuned that much, as waiting for this means nothing else happens
- * in the system
- */
-#define MEMORY_WAIT_TIME 16
-
-/*
- * This selects whether TX packets are sent one by one to the SMC91x internal
- * memory and throttled until transmission completes. This may prevent
- * RX overruns a litle by keeping much of the memory free for RX packets
- * but to the expense of reduced TX throughput and increased IRQ overhead.
- * Note this is not a cure for a too slow data bus or too high IRQ latency.
- */
-#define THROTTLE_TX_PKTS 0
-
-/*
- * The MII clock high/low times. 2x this number gives the MII clock period
- * in microseconds. (was 50, but this gives 6.4ms for each MII transaction!)
- */
-#define MII_DELAY 1
-
-/* store this information for the driver.. */
-struct smc_local {
- /*
- * If I have to wait until memory is available to send a
- * packet, I will store the skbuff here, until I get the
- * desired memory. Then, I'll send it out and free it.
- */
- struct sk_buff *saved_skb;
-
- /*
- * these are things that the kernel wants me to keep, so users
- * can find out semi-useless statistics of how well the card is
- * performing
- */
- struct net_device_stats stats;
-
- /* version/revision of the SMC91x chip */
- int version;
-
- /* Contains the current active transmission mode */
- int tcr_cur_mode;
-
- /* Contains the current active receive mode */
- int rcr_cur_mode;
-
- /* Contains the current active receive/phy mode */
- int rpc_cur_mode;
- int ctl_rfduplx;
- int ctl_rspeed;
-
- u32 msg_enable;
- u32 phy_type;
- struct mii_if_info mii;
- spinlock_t lock;
-
-#ifdef SMC_USE_PXA_DMA
- /* DMA needs the physical address of the chip */
- u_long physaddr;
-#endif
-};
-
-#if SMC_DEBUG > 0
-#define DBG(n, args...) \
- do { \
- if (SMC_DEBUG >= (n)) \
- printk(KERN_DEBUG args); \
- } while (0)
-
-#define PRINTK(args...) printk(args)
-#else
-#define DBG(n, args...) do { } while(0)
-#define PRINTK(args...) printk(KERN_DEBUG args)
-#endif
-
-#if SMC_DEBUG > 3
-static void PRINT_PKT(u_char *buf, int length)
-{
- int i;
- int remainder;
- int lines;
-
- lines = length / 16;
- remainder = length % 16;
-
- for (i = 0; i < lines ; i ++) {
- int cur;
- for (cur = 0; cur < 8; cur++) {
- u_char a, b;
- a = *buf++;
- b = *buf++;
- printk("%02x%02x ", a, b);
- }
- printk("\n");
- }
- for (i = 0; i < remainder/2 ; i++) {
- u_char a, b;
- a = *buf++;
- b = *buf++;
- printk("%02x%02x ", a, b);
- }
- printk("\n");
-}
-#else
-#define PRINT_PKT(x...) do { } while(0)
-#endif
-
-
-/* this enables an interrupt in the interrupt mask register */
-#define SMC_ENABLE_INT(x) do { \
- unsigned long flags; \
- unsigned char mask; \
- spin_lock_irqsave(&lp->lock, flags); \
- mask = SMC_GET_INT_MASK(); \
- mask |= (x); \
- SMC_SET_INT_MASK(mask); \
- spin_unlock_irqrestore(&lp->lock, flags); \
-} while (0)
-
-/* this disables an interrupt from the interrupt mask register */
-#define SMC_DISABLE_INT(x) do { \
- unsigned long flags; \
- unsigned char mask; \
- spin_lock_irqsave(&lp->lock, flags); \
- mask = SMC_GET_INT_MASK(); \
- mask &= ~(x); \
- SMC_SET_INT_MASK(mask); \
- spin_unlock_irqrestore(&lp->lock, flags); \
-} while (0)
-
-/*
- * Wait while MMU is busy. This is usually in the order of a few nanosecs
- * if at all, but let's avoid deadlocking the system if the hardware
- * decides to go south.
- */
-#define SMC_WAIT_MMU_BUSY() do { \
- if (unlikely(SMC_GET_MMU_CMD() & MC_BUSY)) { \
- unsigned long timeout = jiffies + 2; \
- while (SMC_GET_MMU_CMD() & MC_BUSY) { \
- if (time_after(jiffies, timeout)) { \
- printk("%s: timeout %s line %d\n", \
- dev->name, __FILE__, __LINE__); \
- break; \
- } \
- cpu_relax(); \
- } \
- } \
-} while (0)
-
-
-/*
- * this does a soft reset on the device
- */
-static void smc_reset(struct net_device *dev)
-{
- unsigned long ioaddr = dev->base_addr;
- unsigned int ctl, cfg;
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- /*
- * This resets the registers mostly to defaults, but doesn't
- * affect EEPROM. That seems unnecessary
- */
- SMC_SELECT_BANK(0);
- SMC_SET_RCR(RCR_SOFTRST);
-
- /*
- * Setup the Configuration Register
- * This is necessary because the CONFIG_REG is not affected
- * by a soft reset
- */
- SMC_SELECT_BANK(1);
-
- cfg = CONFIG_DEFAULT;
-
- /*
- * Setup for fast accesses if requested. If the card/system
- * can't handle it then there will be no recovery except for
- * a hard reset or power cycle
- */
- if (nowait)
- cfg |= CONFIG_NO_WAIT;
-
- /*
- * Release from possible power-down state
- * Configuration register is not affected by Soft Reset
- */
- cfg |= CONFIG_EPH_POWER_EN;
-
- SMC_SET_CONFIG(cfg);
-
- /* this should pause enough for the chip to be happy */
- /*
- * elaborate? What does the chip _need_? --jgarzik
- *
- * This seems to be undocumented, but something the original
- * driver(s) have always done. Suspect undocumented timing
- * info/determined empirically. --rmk
- */
- udelay(1);
-
- /* Disable transmit and receive functionality */
- SMC_SELECT_BANK(0);
- SMC_SET_RCR(RCR_CLEAR);
- SMC_SET_TCR(TCR_CLEAR);
-
- SMC_SELECT_BANK(1);
- ctl = SMC_GET_CTL() | CTL_LE_ENABLE;
-
- /*
- * Set the control register to automatically release successfully
- * transmitted packets, to make the best use out of our limited
- * memory
- */
-#if ! THROTTLE_TX_PKTS
- ctl |= CTL_AUTO_RELEASE;
-#else
- ctl &= ~CTL_AUTO_RELEASE;
-#endif
- SMC_SET_CTL(ctl);
-
- /* Disable all interrupts */
- SMC_SELECT_BANK(2);
- SMC_SET_INT_MASK(0);
-
- /* Reset the MMU */
- SMC_SET_MMU_CMD(MC_RESET);
- SMC_WAIT_MMU_BUSY();
-}
-
-/*
- * Enable Interrupts, Receive, and Transmit
- */
-static void smc_enable(struct net_device *dev)
-{
- unsigned long ioaddr = dev->base_addr;
- struct smc_local *lp = netdev_priv(dev);
- int mask;
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- /* see the header file for options in TCR/RCR DEFAULT */
- SMC_SELECT_BANK(0);
- SMC_SET_TCR(lp->tcr_cur_mode);
- SMC_SET_RCR(lp->rcr_cur_mode);
-
- /* now, enable interrupts */
- mask = IM_EPH_INT|IM_RX_OVRN_INT|IM_RCV_INT;
- if (lp->version >= (CHIP_91100 << 4))
- mask |= IM_MDINT;
- SMC_SELECT_BANK(2);
- SMC_SET_INT_MASK(mask);
-}
-
-/*
- * this puts the device in an inactive state
- */
-static void smc_shutdown(unsigned long ioaddr)
-{
- DBG(2, "%s: %s\n", CARDNAME, __FUNCTION__);
-
- /* no more interrupts for me */
- SMC_SELECT_BANK(2);
- SMC_SET_INT_MASK(0);
-
- /* and tell the card to stay away from that nasty outside world */
- SMC_SELECT_BANK(0);
- SMC_SET_RCR(RCR_CLEAR);
- SMC_SET_TCR(TCR_CLEAR);
-
-#ifdef POWER_DOWN
- /* finally, shut the chip down */
- SMC_SELECT_BANK(1);
- SMC_SET_CONFIG(SMC_GET_CONFIG() & ~CONFIG_EPH_POWER_EN);
-#endif
-}
-
-/*
- * This is the procedure to handle the receipt of a packet.
- */
-static inline void smc_rcv(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- unsigned int packet_number, status, packet_len;
-
- DBG(3, "%s: %s\n", dev->name, __FUNCTION__);
-
- packet_number = SMC_GET_RXFIFO();
- if (unlikely(packet_number & RXFIFO_REMPTY)) {
- PRINTK("%s: smc_rcv with nothing on FIFO.\n", dev->name);
- return;
- }
-
- /* read from start of packet */
- SMC_SET_PTR(PTR_READ | PTR_RCV | PTR_AUTOINC);
-
- /* First two words are status and packet length */
- SMC_GET_PKT_HDR(status, packet_len);
- packet_len &= 0x07ff; /* mask off top bits */
- DBG(2, "%s: RX PNR 0x%x STATUS 0x%04x LENGTH 0x%04x (%d)\n",
- dev->name, packet_number, status,
- packet_len, packet_len);
-
- if (unlikely(status & RS_ERRORS)) {
- lp->stats.rx_errors++;
- if (status & RS_ALGNERR)
- lp->stats.rx_frame_errors++;
- if (status & (RS_TOOSHORT | RS_TOOLONG))
- lp->stats.rx_length_errors++;
- if (status & RS_BADCRC)
- lp->stats.rx_crc_errors++;
- } else {
- struct sk_buff *skb;
- unsigned char *data;
- unsigned int data_len;
-
- /* set multicast stats */
- if (status & RS_MULTICAST)
- lp->stats.multicast++;
-
- /*
- * Actual payload is packet_len - 4 (or 3 if odd byte).
- * We want skb_reserve(2) and the final ctrl word
- * (2 bytes, possibly containing the payload odd byte).
- * Ence packet_len - 4 + 2 + 2.
- */
- skb = dev_alloc_skb(packet_len);
- if (unlikely(skb == NULL)) {
- printk(KERN_NOTICE "%s: Low memory, packet dropped.\n",
- dev->name);
- lp->stats.rx_dropped++;
- goto done;
- }
-
- /* Align IP header to 32 bits */
- skb_reserve(skb, 2);
-
- /* BUG: the LAN91C111 rev A never sets this bit. Force it. */
- if (lp->version == 0x90)
- status |= RS_ODDFRAME;
-
- /*
- * If odd length: packet_len - 3,
- * otherwise packet_len - 4.
- */
- data_len = packet_len - ((status & RS_ODDFRAME) ? 3 : 4);
- data = skb_put(skb, data_len);
- SMC_PULL_DATA(data, packet_len - 2);
-
- PRINT_PKT(data, packet_len - 2);
-
- dev->last_rx = jiffies;
- skb->dev = dev;
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
- lp->stats.rx_packets++;
- lp->stats.rx_bytes += data_len;
- }
-
-done:
- SMC_WAIT_MMU_BUSY();
- SMC_SET_MMU_CMD(MC_RELEASE);
-}
-
-/*
- * This is called to actually send a packet to the chip.
- * Returns non-zero when successful.
- */
-static void smc_hardware_send_packet(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- struct sk_buff *skb = lp->saved_skb;
- unsigned int packet_no, len;
- unsigned char *buf;
-
- DBG(3, "%s: %s\n", dev->name, __FUNCTION__);
-
- packet_no = SMC_GET_AR();
- if (unlikely(packet_no & AR_FAILED)) {
- printk("%s: Memory allocation failed.\n", dev->name);
- lp->saved_skb = NULL;
- lp->stats.tx_errors++;
- lp->stats.tx_fifo_errors++;
- dev_kfree_skb_any(skb);
- return;
- }
-
- /* point to the beginning of the packet */
- SMC_SET_PN(packet_no);
- SMC_SET_PTR(PTR_AUTOINC);
-
- buf = skb->data;
- len = skb->len;
- DBG(2, "%s: TX PNR 0x%x LENGTH 0x%04x (%d) BUF 0x%p\n",
- dev->name, packet_no, len, len, buf);
- PRINT_PKT(buf, len);
-
- /*
- * Send the packet length (+6 for status words, length, and ctl.
- * The card will pad to 64 bytes with zeroes if packet is too small.
- */
- SMC_PUT_PKT_HDR(0, len + 6);
-
- /* send the actual data */
- SMC_PUSH_DATA(buf, len & ~1);
-
- /* Send final ctl word with the last byte if there is one */
- SMC_outw(((len & 1) ? (0x2000 | buf[len-1]) : 0), ioaddr, DATA_REG);
-
- /* and let the chipset deal with it */
- SMC_SET_MMU_CMD(MC_ENQUEUE);
- SMC_ACK_INT(IM_TX_EMPTY_INT);
-
- dev->trans_start = jiffies;
- dev_kfree_skb_any(skb);
- lp->saved_skb = NULL;
- lp->stats.tx_packets++;
- lp->stats.tx_bytes += len;
-}
-
-/*
- * Since I am not sure if I will have enough room in the chip's ram
- * to store the packet, I call this routine which either sends it
- * now, or set the card to generates an interrupt when ready
- * for the packet.
- */
-static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- unsigned int numPages, poll_count, status, saved_bank;
-
- DBG(3, "%s: %s\n", dev->name, __FUNCTION__);
-
- BUG_ON(lp->saved_skb != NULL);
- lp->saved_skb = skb;
-
- /*
- * The MMU wants the number of pages to be the number of 256 bytes
- * 'pages', minus 1 (since a packet can't ever have 0 pages :))
- *
- * The 91C111 ignores the size bits, but earlier models don't.
- *
- * Pkt size for allocating is data length +6 (for additional status
- * words, length and ctl)
- *
- * If odd size then last byte is included in ctl word.
- */
- numPages = ((skb->len & ~1) + (6 - 1)) >> 8;
- if (unlikely(numPages > 7)) {
- printk("%s: Far too big packet error.\n", dev->name);
- lp->saved_skb = NULL;
- lp->stats.tx_errors++;
- lp->stats.tx_dropped++;
- dev_kfree_skb(skb);
- return 0;
- }
-
- /* now, try to allocate the memory */
- saved_bank = SMC_CURRENT_BANK();
- SMC_SELECT_BANK(2);
- SMC_SET_MMU_CMD(MC_ALLOC | numPages);
-
- /*
- * Poll the chip for a short amount of time in case the
- * allocation succeeds quickly.
- */
- poll_count = MEMORY_WAIT_TIME;
- do {
- status = SMC_GET_INT();
- if (status & IM_ALLOC_INT) {
- SMC_ACK_INT(IM_ALLOC_INT);
- break;
- }
- } while (--poll_count);
-
- if (!poll_count) {
- /* oh well, wait until the chip finds memory later */
- netif_stop_queue(dev);
- DBG(2, "%s: TX memory allocation deferred.\n", dev->name);
- SMC_ENABLE_INT(IM_ALLOC_INT);
- } else {
- /*
- * Allocation succeeded: push packet to the chip's own memory
- * immediately.
- *
- * If THROTTLE_TX_PKTS is selected that means we don't want
- * more than a single TX packet taking up space in the chip's
- * internal memory at all time, in which case we stop the
- * queue right here until we're notified of TX completion.
- *
- * Otherwise we're quite happy to feed more TX packets right
- * away for better TX throughput, in which case the queue is
- * left active.
- */
-#if THROTTLE_TX_PKTS
- netif_stop_queue(dev);
-#endif
- smc_hardware_send_packet(dev);
- SMC_ENABLE_INT(IM_TX_INT | IM_TX_EMPTY_INT);
- }
-
- SMC_SELECT_BANK(saved_bank);
- return 0;
-}
-
-/*
- * This handles a TX interrupt, which is only called when:
- * - a TX error occurred, or
- * - CTL_AUTO_RELEASE is not set and TX of a packet completed.
- */
-static void smc_tx(struct net_device *dev)
-{
- unsigned long ioaddr = dev->base_addr;
- struct smc_local *lp = netdev_priv(dev);
- unsigned int saved_packet, packet_no, tx_status, pkt_len;
-
- DBG(3, "%s: %s\n", dev->name, __FUNCTION__);
-
- /* If the TX FIFO is empty then nothing to do */
- packet_no = SMC_GET_TXFIFO();
- if (unlikely(packet_no & TXFIFO_TEMPTY)) {
- PRINTK("%s: smc_tx with nothing on FIFO.\n", dev->name);
- return;
- }
-
- /* select packet to read from */
- saved_packet = SMC_GET_PN();
- SMC_SET_PN(packet_no);
-
- /* read the first word (status word) from this packet */
- SMC_SET_PTR(PTR_AUTOINC | PTR_READ);
- SMC_GET_PKT_HDR(tx_status, pkt_len);
- DBG(2, "%s: TX STATUS 0x%04x PNR 0x%02x\n",
- dev->name, tx_status, packet_no);
-
- if (!(tx_status & TS_SUCCESS))
- lp->stats.tx_errors++;
- if (tx_status & TS_LOSTCAR)
- lp->stats.tx_carrier_errors++;
-
- if (tx_status & TS_LATCOL) {
- PRINTK("%s: late collision occurred on last xmit\n", dev->name);
- lp->stats.tx_window_errors++;
- if (!(lp->stats.tx_window_errors & 63) && net_ratelimit()) {
- printk(KERN_INFO "%s: unexpectedly large numbers of "
- "late collisions. Please check duplex "
- "setting.\n", dev->name);
- }
- }
-
- /* kill the packet */
- SMC_WAIT_MMU_BUSY();
- SMC_SET_MMU_CMD(MC_FREEPKT);
-
- /* Don't restore Packet Number Reg until busy bit is cleared */
- SMC_WAIT_MMU_BUSY();
- SMC_SET_PN(saved_packet);
-
- /* re-enable transmit */
- SMC_SELECT_BANK(0);
- SMC_SET_TCR(lp->tcr_cur_mode);
- SMC_SELECT_BANK(2);
-}
-
-
-/*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
-
-static void smc_mii_out(struct net_device *dev, unsigned int val, int bits)
-{
- unsigned long ioaddr = dev->base_addr;
- unsigned int mii_reg, mask;
-
- mii_reg = SMC_GET_MII() & ~(MII_MCLK | MII_MDOE | MII_MDO);
- mii_reg |= MII_MDOE;
-
- for (mask = 1 << (bits - 1); mask; mask >>= 1) {
- if (val & mask)
- mii_reg |= MII_MDO;
- else
- mii_reg &= ~MII_MDO;
-
- SMC_SET_MII(mii_reg);
- udelay(MII_DELAY);
- SMC_SET_MII(mii_reg | MII_MCLK);
- udelay(MII_DELAY);
- }
-}
-
-static unsigned int smc_mii_in(struct net_device *dev, int bits)
-{
- unsigned long ioaddr = dev->base_addr;
- unsigned int mii_reg, mask, val;
-
- mii_reg = SMC_GET_MII() & ~(MII_MCLK | MII_MDOE | MII_MDO);
- SMC_SET_MII(mii_reg);
-
- for (mask = 1 << (bits - 1), val = 0; mask; mask >>= 1) {
- if (SMC_GET_MII() & MII_MDI)
- val |= mask;
-
- SMC_SET_MII(mii_reg);
- udelay(MII_DELAY);
- SMC_SET_MII(mii_reg | MII_MCLK);
- udelay(MII_DELAY);
- }
-
- return val;
-}
-
-/*
- * Reads a register from the MII Management serial interface
- */
-static int smc_phy_read(struct net_device *dev, int phyaddr, int phyreg)
-{
- unsigned long ioaddr = dev->base_addr;
- unsigned int phydata, old_bank;
-
- /* Save the current bank, and select bank 3 */
- old_bank = SMC_CURRENT_BANK();
- SMC_SELECT_BANK(3);
-
- /* Idle - 32 ones */
- smc_mii_out(dev, 0xffffffff, 32);
-
- /* Start code (01) + read (10) + phyaddr + phyreg */
- smc_mii_out(dev, 6 << 10 | phyaddr << 5 | phyreg, 14);
-
- /* Turnaround (2bits) + phydata */
- phydata = smc_mii_in(dev, 18);
-
- /* Return to idle state */
- SMC_SET_MII(SMC_GET_MII() & ~(MII_MCLK|MII_MDOE|MII_MDO));
-
- /* And select original bank */
- SMC_SELECT_BANK(old_bank);
-
- DBG(3, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
- __FUNCTION__, phyaddr, phyreg, phydata);
-
- return phydata;
-}
-
-/*
- * Writes a register to the MII Management serial interface
- */
-static void smc_phy_write(struct net_device *dev, int phyaddr, int phyreg,
- int phydata)
-{
- unsigned long ioaddr = dev->base_addr;
- unsigned int old_bank;
-
- /* Save the current bank, and select bank 3 */
- old_bank = SMC_CURRENT_BANK();
- SMC_SELECT_BANK(3);
-
- /* Idle - 32 ones */
- smc_mii_out(dev, 0xffffffff, 32);
-
- /* Start code (01) + write (01) + phyaddr + phyreg + turnaround + phydata */
- smc_mii_out(dev, 5 << 28 | phyaddr << 23 | phyreg << 18 | 2 << 16 | phydata, 32);
-
- /* Return to idle state */
- SMC_SET_MII(SMC_GET_MII() & ~(MII_MCLK|MII_MDOE|MII_MDO));
-
- /* And select original bank */
- SMC_SELECT_BANK(old_bank);
-
- DBG(3, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
- __FUNCTION__, phyaddr, phyreg, phydata);
-}
-
-/*
- * Finds and reports the PHY address
- */
-static void smc_detect_phy(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- int phyaddr;
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- lp->phy_type = 0;
-
- /*
- * Scan all 32 PHY addresses if necessary, starting at
- * PHY#1 to PHY#31, and then PHY#0 last.
- */
- for (phyaddr = 1; phyaddr < 33; ++phyaddr) {
- unsigned int id1, id2;
-
- /* Read the PHY identifiers */
- id1 = smc_phy_read(dev, phyaddr & 31, MII_PHYSID1);
- id2 = smc_phy_read(dev, phyaddr & 31, MII_PHYSID2);
-
- DBG(3, "%s: phy_id1=0x%x, phy_id2=0x%x\n",
- dev->name, id1, id2);
-
- /* Make sure it is a valid identifier */
- if (id1 != 0x0000 && id1 != 0xffff && id1 != 0x8000 &&
- id2 != 0x0000 && id2 != 0xffff && id2 != 0x8000) {
- /* Save the PHY's address */
- lp->mii.phy_id = phyaddr & 31;
- lp->phy_type = id1 << 16 | id2;
- break;
- }
- }
-}
-
-/*
- * Sets the PHY to a configuration as determined by the user
- */
-static int smc_phy_fixed(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- int phyaddr = lp->mii.phy_id;
- int bmcr, cfg1;
-
- DBG(3, "%s: %s\n", dev->name, __FUNCTION__);
-
- /* Enter Link Disable state */
- cfg1 = smc_phy_read(dev, phyaddr, PHY_CFG1_REG);
- cfg1 |= PHY_CFG1_LNKDIS;
- smc_phy_write(dev, phyaddr, PHY_CFG1_REG, cfg1);
-
- /*
- * Set our fixed capabilities
- * Disable auto-negotiation
- */
- bmcr = 0;
-
- if (lp->ctl_rfduplx)
- bmcr |= BMCR_FULLDPLX;
-
- if (lp->ctl_rspeed == 100)
- bmcr |= BMCR_SPEED100;
-
- /* Write our capabilities to the phy control register */
- smc_phy_write(dev, phyaddr, MII_BMCR, bmcr);
-
- /* Re-Configure the Receive/Phy Control register */
- SMC_SET_RPC(lp->rpc_cur_mode);
-
- return 1;
-}
-
-/*
- * smc_phy_reset - reset the phy
- * @dev: net device
- * @phy: phy address
- *
- * Issue a software reset for the specified PHY and
- * wait up to 100ms for the reset to complete. We should
- * not access the PHY for 50ms after issuing the reset.
- *
- * The time to wait appears to be dependent on the PHY.
- *
- * Must be called with lp->lock locked.
- */
-static int smc_phy_reset(struct net_device *dev, int phy)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned int bmcr;
- int timeout;
-
- smc_phy_write(dev, phy, MII_BMCR, BMCR_RESET);
-
- for (timeout = 2; timeout; timeout--) {
- spin_unlock_irq(&lp->lock);
- msleep(50);
- spin_lock_irq(&lp->lock);
-
- bmcr = smc_phy_read(dev, phy, MII_BMCR);
- if (!(bmcr & BMCR_RESET))
- break;
- }
-
- return bmcr & BMCR_RESET;
-}
-
-/*
- * smc_phy_powerdown - powerdown phy
- * @dev: net device
- * @phy: phy address
- *
- * Power down the specified PHY
- */
-static void smc_phy_powerdown(struct net_device *dev, int phy)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned int bmcr;
-
- spin_lock_irq(&lp->lock);
- bmcr = smc_phy_read(dev, phy, MII_BMCR);
- smc_phy_write(dev, phy, MII_BMCR, bmcr | BMCR_PDOWN);
- spin_unlock_irq(&lp->lock);
-}
-
-/*
- * smc_phy_check_media - check the media status and adjust TCR
- * @dev: net device
- * @init: set true for initialisation
- *
- * Select duplex mode depending on negotiation state. This
- * also updates our carrier state.
- */
-static void smc_phy_check_media(struct net_device *dev, int init)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
-
- if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
- unsigned int old_bank;
-
- /* duplex state has changed */
- if (lp->mii.full_duplex) {
- lp->tcr_cur_mode |= TCR_SWFDUP;
- } else {
- lp->tcr_cur_mode &= ~TCR_SWFDUP;
- }
-
- old_bank = SMC_CURRENT_BANK();
- SMC_SELECT_BANK(0);
- SMC_SET_TCR(lp->tcr_cur_mode);
- SMC_SELECT_BANK(old_bank);
- }
-}
-
-/*
- * Configures the specified PHY through the MII management interface
- * using Autonegotiation.
- * Calls smc_phy_fixed() if the user has requested a certain config.
- * If RPC ANEG bit is set, the media selection is dependent purely on
- * the selection by the MII (either in the MII BMCR reg or the result
- * of autonegotiation.) If the RPC ANEG bit is cleared, the selection
- * is controlled by the RPC SPEED and RPC DPLX bits.
- */
-static void smc_phy_configure(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- int phyaddr = lp->mii.phy_id;
- int my_phy_caps; /* My PHY capabilities */
- int my_ad_caps; /* My Advertised capabilities */
- int status;
-
- DBG(3, "%s:smc_program_phy()\n", dev->name);
-
- spin_lock_irq(&lp->lock);
-
- /*
- * We should not be called if phy_type is zero.
- */
- if (lp->phy_type == 0)
- goto smc_phy_configure_exit;
-
- if (smc_phy_reset(dev, phyaddr)) {
- printk("%s: PHY reset timed out\n", dev->name);
- goto smc_phy_configure_exit;
- }
-
- /*
- * Enable PHY Interrupts (for register 18)
- * Interrupts listed here are disabled
- */
- smc_phy_write(dev, phyaddr, PHY_MASK_REG,
- PHY_INT_LOSSSYNC | PHY_INT_CWRD | PHY_INT_SSD |
- PHY_INT_ESD | PHY_INT_RPOL | PHY_INT_JAB |
- PHY_INT_SPDDET | PHY_INT_DPLXDET);
-
- /* Configure the Receive/Phy Control register */
- SMC_SELECT_BANK(0);
- SMC_SET_RPC(lp->rpc_cur_mode);
-
- /* If the user requested no auto neg, then go set his request */
- if (lp->mii.force_media) {
- smc_phy_fixed(dev);
- goto smc_phy_configure_exit;
- }
-
- /* Copy our capabilities from MII_BMSR to MII_ADVERTISE */
- my_phy_caps = smc_phy_read(dev, phyaddr, MII_BMSR);
-
- if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
- printk(KERN_INFO "Auto negotiation NOT supported\n");
- smc_phy_fixed(dev);
- goto smc_phy_configure_exit;
- }
-
- my_ad_caps = ADVERTISE_CSMA; /* I am CSMA capable */
-
- if (my_phy_caps & BMSR_100BASE4)
- my_ad_caps |= ADVERTISE_100BASE4;
- if (my_phy_caps & BMSR_100FULL)
- my_ad_caps |= ADVERTISE_100FULL;
- if (my_phy_caps & BMSR_100HALF)
- my_ad_caps |= ADVERTISE_100HALF;
- if (my_phy_caps & BMSR_10FULL)
- my_ad_caps |= ADVERTISE_10FULL;
- if (my_phy_caps & BMSR_10HALF)
- my_ad_caps |= ADVERTISE_10HALF;
-
- /* Disable capabilities not selected by our user */
- if (lp->ctl_rspeed != 100)
- my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF);
-
- if (!lp->ctl_rfduplx)
- my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL);
-
- /* Update our Auto-Neg Advertisement Register */
- smc_phy_write(dev, phyaddr, MII_ADVERTISE, my_ad_caps);
- lp->mii.advertising = my_ad_caps;
-
- /*
- * Read the register back. Without this, it appears that when
- * auto-negotiation is restarted, sometimes it isn't ready and
- * the link does not come up.
- */
- status = smc_phy_read(dev, phyaddr, MII_ADVERTISE);
-
- DBG(2, "%s: phy caps=%x\n", dev->name, my_phy_caps);
- DBG(2, "%s: phy advertised caps=%x\n", dev->name, my_ad_caps);
-
- /* Restart auto-negotiation process in order to advertise my caps */
- smc_phy_write(dev, phyaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
-
- smc_phy_check_media(dev, 1);
-
-smc_phy_configure_exit:
- spin_unlock_irq(&lp->lock);
-}
-
-/*
- * smc_phy_interrupt
- *
- * Purpose: Handle interrupts relating to PHY register 18. This is
- * called from the "hard" interrupt handler under our private spinlock.
- */
-static void smc_phy_interrupt(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- int phyaddr = lp->mii.phy_id;
- int phy18;
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- if (lp->phy_type == 0)
- return;
-
- for(;;) {
- smc_phy_check_media(dev, 0);
-
- /* Read PHY Register 18, Status Output */
- phy18 = smc_phy_read(dev, phyaddr, PHY_INT_REG);
- if ((phy18 & PHY_INT_INT) == 0)
- break;
- }
-}
-
-/*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
-
-static void smc_10bt_check_media(struct net_device *dev, int init)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- unsigned int old_carrier, new_carrier, old_bank;
-
- old_bank = SMC_CURRENT_BANK();
- SMC_SELECT_BANK(0);
- old_carrier = netif_carrier_ok(dev) ? 1 : 0;
- new_carrier = SMC_inw(ioaddr, EPH_STATUS_REG) & ES_LINK_OK ? 1 : 0;
-
- if (init || (old_carrier != new_carrier)) {
- if (!new_carrier) {
- netif_carrier_off(dev);
- } else {
- netif_carrier_on(dev);
- }
- if (netif_msg_link(lp))
- printk(KERN_INFO "%s: link %s\n", dev->name,
- new_carrier ? "up" : "down");
- }
- SMC_SELECT_BANK(old_bank);
-}
-
-static void smc_eph_interrupt(struct net_device *dev)
-{
- unsigned long ioaddr = dev->base_addr;
- unsigned int old_bank, ctl;
-
- smc_10bt_check_media(dev, 0);
-
- old_bank = SMC_CURRENT_BANK();
- SMC_SELECT_BANK(1);
-
- ctl = SMC_GET_CTL();
- SMC_SET_CTL(ctl & ~CTL_LE_ENABLE);
- SMC_SET_CTL(ctl);
-
- SMC_SELECT_BANK(old_bank);
-}
-
-/*
- * This is the main routine of the driver, to handle the device when
- * it needs some attention.
- */
-static irqreturn_t smc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *dev = dev_id;
- unsigned long ioaddr = dev->base_addr;
- struct smc_local *lp = netdev_priv(dev);
- int status, mask, timeout, card_stats;
- int saved_bank, saved_pointer;
-
- DBG(3, "%s: %s\n", dev->name, __FUNCTION__);
-
- saved_bank = SMC_CURRENT_BANK();
- SMC_SELECT_BANK(2);
- saved_pointer = SMC_GET_PTR();
- mask = SMC_GET_INT_MASK();
- SMC_SET_INT_MASK(0);
-
- /* set a timeout value, so I don't stay here forever */
- timeout = 8;
-
- do {
- status = SMC_GET_INT();
-
- DBG(2, "%s: IRQ 0x%02x MASK 0x%02x MEM 0x%04x FIFO 0x%04x\n",
- dev->name, status, mask,
- ({ int meminfo; SMC_SELECT_BANK(0);
- meminfo = SMC_GET_MIR();
- SMC_SELECT_BANK(2); meminfo; }),
- SMC_GET_FIFO());
-
- status &= mask;
- if (!status)
- break;
-
- spin_lock(&lp->lock);
-
- if (status & IM_RCV_INT) {
- DBG(3, "%s: RX irq\n", dev->name);
- smc_rcv(dev);
- } else if (status & IM_TX_INT) {
- DBG(3, "%s: TX int\n", dev->name);
- smc_tx(dev);
- SMC_ACK_INT(IM_TX_INT);
-#if THROTTLE_TX_PKTS
- netif_wake_queue(dev);
-#endif
- } else if (status & IM_ALLOC_INT) {
- DBG(3, "%s: Allocation irq\n", dev->name);
- smc_hardware_send_packet(dev);
- mask |= (IM_TX_INT | IM_TX_EMPTY_INT);
- mask &= ~IM_ALLOC_INT;
-#if ! THROTTLE_TX_PKTS
- netif_wake_queue(dev);
-#endif
- } else if (status & IM_TX_EMPTY_INT) {
- DBG(3, "%s: TX empty\n", dev->name);
- mask &= ~IM_TX_EMPTY_INT;
-
- /* update stats */
- SMC_SELECT_BANK(0);
- card_stats = SMC_GET_COUNTER();
- SMC_SELECT_BANK(2);
-
- /* single collisions */
- lp->stats.collisions += card_stats & 0xF;
- card_stats >>= 4;
-
- /* multiple collisions */
- lp->stats.collisions += card_stats & 0xF;
- } else if (status & IM_RX_OVRN_INT) {
- DBG(1, "%s: RX overrun\n", dev->name);
- SMC_ACK_INT(IM_RX_OVRN_INT);
- lp->stats.rx_errors++;
- lp->stats.rx_fifo_errors++;
- } else if (status & IM_EPH_INT) {
- smc_eph_interrupt(dev);
- } else if (status & IM_MDINT) {
- SMC_ACK_INT(IM_MDINT);
- smc_phy_interrupt(dev);
- } else if (status & IM_ERCV_INT) {
- SMC_ACK_INT(IM_ERCV_INT);
- PRINTK("%s: UNSUPPORTED: ERCV INTERRUPT \n", dev->name);
- }
-
- spin_unlock(&lp->lock);
- } while (--timeout);
-
- /* restore register states */
- SMC_SET_INT_MASK(mask);
- SMC_SET_PTR(saved_pointer);
- SMC_SELECT_BANK(saved_bank);
-
- DBG(3, "%s: Interrupt done (%d loops)\n", dev->name, 8-timeout);
-
- /*
- * We return IRQ_HANDLED unconditionally here even if there was
- * nothing to do. There is a possibility that a packet might
- * get enqueued into the chip right after TX_EMPTY_INT is raised
- * but just before the CPU acknowledges the IRQ.
- * Better take an unneeded IRQ in some occasions than complexifying
- * the code for all cases.
- */
- return IRQ_HANDLED;
-}
-
-/* Our watchdog timed out. Called by the networking layer */
-static void smc_timeout(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- smc_reset(dev);
- smc_enable(dev);
-
-#if 0
- /*
- * Reconfiguring the PHY doesn't seem like a bad idea here, but
- * it introduced a problem. Now that this is a timeout routine,
- * we are getting called from within an interrupt context.
- * smc_phy_configure() calls msleep() which calls
- * schedule_timeout() which calls schedule(). When schedule()
- * is called from an interrupt context, it prints out
- * "Scheduling in interrupt" and then calls BUG(). This is
- * obviously not desirable. This was worked around by removing
- * the call to smc_phy_configure() here because it didn't seem
- * absolutely necessary. Ultimately, if msleep() is
- * supposed to be usable from an interrupt context (which it
- * looks like it thinks it should handle), it should be fixed.
- */
- if (lp->phy_type != 0)
- smc_phy_configure(dev);
-#endif
-
- /* clear anything saved */
- if (lp->saved_skb != NULL) {
- dev_kfree_skb (lp->saved_skb);
- lp->saved_skb = NULL;
- lp->stats.tx_errors++;
- lp->stats.tx_aborted_errors++;
- }
- /* We can accept TX packets again */
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
-}
-
-/*
- * This sets the internal hardware table to filter out unwanted multicast
- * packets before they take up memory.
- *
- * The SMC chip uses a hash table where the high 6 bits of the CRC of
- * address are the offset into the table. If that bit is 1, then the
- * multicast packet is accepted. Otherwise, it's dropped silently.
- *
- * To use the 6 bits as an offset into the table, the high 3 bits are the
- * number of the 8 bit register, while the low 3 bits are the bit within
- * that register.
- *
- * This routine is based very heavily on the one provided by Peter Cammaert.
- */
-static void
-smc_setmulticast(unsigned long ioaddr, int count, struct dev_mc_list *addrs)
-{
- int i;
- unsigned char multicast_table[8];
- struct dev_mc_list *cur_addr;
-
- /* table for flipping the order of 3 bits */
- static unsigned char invert3[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
-
- /* start with a table of all zeros: reject all */
- memset(multicast_table, 0, sizeof(multicast_table));
-
- cur_addr = addrs;
- for (i = 0; i < count; i++, cur_addr = cur_addr->next) {
- int position;
-
- /* do we have a pointer here? */
- if (!cur_addr)
- break;
- /* make sure this is a multicast address - shouldn't this
- be a given if we have it here ? */
- if (!(*cur_addr->dmi_addr & 1))
- continue;
-
- /* only use the low order bits */
- position = crc32_le(~0, cur_addr->dmi_addr, 6) & 0x3f;
-
- /* do some messy swapping to put the bit in the right spot */
- multicast_table[invert3[position&7]] |=
- (1<<invert3[(position>>3)&7]);
-
- }
- /* now, the table can be loaded into the chipset */
- SMC_SELECT_BANK(3);
- SMC_SET_MCAST(multicast_table);
-}
-
-/*
- * This routine will, depending on the values passed to it,
- * either make it accept multicast packets, go into
- * promiscuous mode (for TCPDUMP and cousins) or accept
- * a select set of multicast packets
- */
-static void smc_set_multicast_list(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- SMC_SELECT_BANK(0);
- if (dev->flags & IFF_PROMISC) {
- DBG(2, "%s: RCR_PRMS\n", dev->name);
- lp->rcr_cur_mode |= RCR_PRMS;
- SMC_SET_RCR(lp->rcr_cur_mode);
- }
-
-/* BUG? I never disable promiscuous mode if multicasting was turned on.
- Now, I turn off promiscuous mode, but I don't do anything to multicasting
- when promiscuous mode is turned on.
-*/
-
- /*
- * Here, I am setting this to accept all multicast packets.
- * I don't need to zero the multicast table, because the flag is
- * checked before the table is
- */
- else if (dev->flags & IFF_ALLMULTI || dev->mc_count > 16) {
- lp->rcr_cur_mode |= RCR_ALMUL;
- SMC_SET_RCR(lp->rcr_cur_mode);
- DBG(2, "%s: RCR_ALMUL\n", dev->name);
- }
-
- /*
- * We just get all multicast packets even if we only want them
- * from one source. This will be changed at some future point.
- */
- else if (dev->mc_count) {
- /* support hardware multicasting */
-
- /* be sure I get rid of flags I might have set */
- lp->rcr_cur_mode &= ~(RCR_PRMS | RCR_ALMUL);
- SMC_SET_RCR(lp->rcr_cur_mode);
- /*
- * NOTE: this has to set the bank, so make sure it is the
- * last thing called. The bank is set to zero at the top
- */
- smc_setmulticast(ioaddr, dev->mc_count, dev->mc_list);
- } else {
- DBG(2, "%s: ~(RCR_PRMS|RCR_ALMUL)\n", dev->name);
- lp->rcr_cur_mode &= ~(RCR_PRMS | RCR_ALMUL);
- SMC_SET_RCR(lp->rcr_cur_mode);
-
- /*
- * since I'm disabling all multicast entirely, I need to
- * clear the multicast list
- */
- SMC_SELECT_BANK(3);
- SMC_CLEAR_MCAST();
- }
-}
-
-
-/*
- * Open and Initialize the board
- *
- * Set up everything, reset the card, etc..
- */
-static int
-smc_open(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- /*
- * Check that the address is valid. If its not, refuse
- * to bring the device up. The user must specify an
- * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
- */
- if (!is_valid_ether_addr(dev->dev_addr)) {
- DBG(2, (KERN_DEBUG "smc_open: no valid ethernet hw addr\n"));
- return -EINVAL;
- }
-
- /* clear out all the junk that was put here before... */
- lp->saved_skb = NULL;
-
- /* Setup the default Register Modes */
- lp->tcr_cur_mode = TCR_DEFAULT;
- lp->rcr_cur_mode = RCR_DEFAULT;
- lp->rpc_cur_mode = RPC_DEFAULT;
-
- /*
- * If we are not using a MII interface, we need to
- * monitor our own carrier signal to detect faults.
- */
- if (lp->phy_type == 0)
- lp->tcr_cur_mode |= TCR_MON_CSN;
-
- /* reset the hardware */
- smc_reset(dev);
- smc_enable(dev);
-
- SMC_SELECT_BANK(1);
- SMC_SET_MAC_ADDR(dev->dev_addr);
-
- /* Configure the PHY */
- if (lp->phy_type != 0)
- smc_phy_configure(dev);
- else {
- spin_lock_irq(&lp->lock);
- smc_10bt_check_media(dev, 1);
- spin_unlock_irq(&lp->lock);
- }
-
- /*
- * make sure to initialize the link state with netif_carrier_off()
- * somewhere, too --jgarzik
- *
- * smc_phy_configure() and smc_10bt_check_media() does that. --rmk
- */
- netif_start_queue(dev);
- return 0;
-}
-
-/*
- * smc_close
- *
- * this makes the board clean up everything that it can
- * and not talk to the outside world. Caused by
- * an 'ifconfig ethX down'
- */
-static int smc_close(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- netif_stop_queue(dev);
- netif_carrier_off(dev);
-
- /* clear everything */
- smc_shutdown(dev->base_addr);
-
- if (lp->phy_type != 0)
- smc_phy_powerdown(dev, lp->mii.phy_id);
-
- return 0;
-}
-
-/*
- * Get the current statistics.
- * This may be called with the card open or closed.
- */
-static struct net_device_stats *smc_query_statistics(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
-
- DBG(2, "%s: %s\n", dev->name, __FUNCTION__);
-
- return &lp->stats;
-}
-
-/*
- * Ethtool support
- */
-static int
-smc_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct smc_local *lp = netdev_priv(dev);
- int ret;
-
- cmd->maxtxpkt = 1;
- cmd->maxrxpkt = 1;
-
- if (lp->phy_type != 0) {
- spin_lock_irq(&lp->lock);
- ret = mii_ethtool_gset(&lp->mii, cmd);
- spin_unlock_irq(&lp->lock);
- } else {
- cmd->supported = SUPPORTED_10baseT_Half |
- SUPPORTED_10baseT_Full |
- SUPPORTED_TP | SUPPORTED_AUI;
-
- if (lp->ctl_rspeed == 10)
- cmd->speed = SPEED_10;
- else if (lp->ctl_rspeed == 100)
- cmd->speed = SPEED_100;
-
- cmd->autoneg = AUTONEG_DISABLE;
- cmd->transceiver = XCVR_INTERNAL;
- cmd->port = 0;
- cmd->duplex = lp->tcr_cur_mode & TCR_SWFDUP ? DUPLEX_FULL : DUPLEX_HALF;
-
- ret = 0;
- }
-
- return ret;
-}
-
-static int
-smc_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct smc_local *lp = netdev_priv(dev);
- int ret;
-
- if (lp->phy_type != 0) {
- spin_lock_irq(&lp->lock);
- ret = mii_ethtool_sset(&lp->mii, cmd);
- spin_unlock_irq(&lp->lock);
- } else {
- if (cmd->autoneg != AUTONEG_DISABLE ||
- cmd->speed != SPEED_10 ||
- (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) ||
- (cmd->port != PORT_TP && cmd->port != PORT_AUI))
- return -EINVAL;
-
-// lp->port = cmd->port;
- lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL;
-
-// if (netif_running(dev))
-// smc_set_port(dev);
-
- ret = 0;
- }
-
- return ret;
-}
-
-static void
-smc_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- strncpy(info->driver, CARDNAME, sizeof(info->driver));
- strncpy(info->version, version, sizeof(info->version));
- strncpy(info->bus_info, dev->class_dev.dev->bus_id, sizeof(info->bus_info));
-}
-
-static int smc_ethtool_nwayreset(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- int ret = -EINVAL;
-
- if (lp->phy_type != 0) {
- spin_lock_irq(&lp->lock);
- ret = mii_nway_restart(&lp->mii);
- spin_unlock_irq(&lp->lock);
- }
-
- return ret;
-}
-
-static u32 smc_ethtool_getmsglevel(struct net_device *dev)
-{
- struct smc_local *lp = netdev_priv(dev);
- return lp->msg_enable;
-}
-
-static void smc_ethtool_setmsglevel(struct net_device *dev, u32 level)
-{
- struct smc_local *lp = netdev_priv(dev);
- lp->msg_enable = level;
-}
-
-static struct ethtool_ops smc_ethtool_ops = {
- .get_settings = smc_ethtool_getsettings,
- .set_settings = smc_ethtool_setsettings,
- .get_drvinfo = smc_ethtool_getdrvinfo,
-
- .get_msglevel = smc_ethtool_getmsglevel,
- .set_msglevel = smc_ethtool_setmsglevel,
- .nway_reset = smc_ethtool_nwayreset,
- .get_link = ethtool_op_get_link,
-// .get_eeprom = smc_ethtool_geteeprom,
-// .set_eeprom = smc_ethtool_seteeprom,
-};
-
-/*
- * smc_findirq
- *
- * This routine has a simple purpose -- make the SMC chip generate an
- * interrupt, so an auto-detect routine can detect it, and find the IRQ,
- */
-/*
- * does this still work?
- *
- * I just deleted auto_irq.c, since it was never built...
- * --jgarzik
- */
-static int __init smc_findirq(unsigned long ioaddr)
-{
- int timeout = 20;
- unsigned long cookie;
-
- DBG(2, "%s: %s\n", CARDNAME, __FUNCTION__);
-
- cookie = probe_irq_on();
-
- /*
- * What I try to do here is trigger an ALLOC_INT. This is done
- * by allocating a small chunk of memory, which will give an interrupt
- * when done.
- */
- /* enable ALLOCation interrupts ONLY */
- SMC_SELECT_BANK(2);
- SMC_SET_INT_MASK(IM_ALLOC_INT);
-
- /*
- * Allocate 512 bytes of memory. Note that the chip was just
- * reset so all the memory is available
- */
- SMC_SET_MMU_CMD(MC_ALLOC | 1);
-
- /*
- * Wait until positive that the interrupt has been generated
- */
- do {
- int int_status;
- udelay(10);
- int_status = SMC_GET_INT();
- if (int_status & IM_ALLOC_INT)
- break; /* got the interrupt */
- } while (--timeout);
-
- /*
- * there is really nothing that I can do here if timeout fails,
- * as autoirq_report will return a 0 anyway, which is what I
- * want in this case. Plus, the clean up is needed in both
- * cases.
- */
-
- /* and disable all interrupts again */
- SMC_SET_INT_MASK(0);
-
- /* and return what I found */
- return probe_irq_off(cookie);
-}
-
-/*
- * Function: smc_probe(unsigned long ioaddr)
- *
- * Purpose:
- * Tests to see if a given ioaddr points to an SMC91x chip.
- * Returns a 0 on success
- *
- * Algorithm:
- * (1) see if the high byte of BANK_SELECT is 0x33
- * (2) compare the ioaddr with the base register's address
- * (3) see if I recognize the chip ID in the appropriate register
- *
- * Here I do typical initialization tasks.
- *
- * o Initialize the structure if needed
- * o print out my vanity message if not done so already
- * o print out what type of hardware is detected
- * o print out the ethernet address
- * o find the IRQ
- * o set up my private data
- * o configure the dev structure with my subroutines
- * o actually GRAB the irq.
- * o GRAB the region
- */
-static int __init smc_probe(struct net_device *dev, unsigned long ioaddr)
-{
- struct smc_local *lp = netdev_priv(dev);
- static int version_printed = 0;
- int i, retval;
- unsigned int val, revision_register;
- const char *version_string;
-
- DBG(2, "%s: %s\n", CARDNAME, __FUNCTION__);
-
- /* First, see if the high byte is 0x33 */
- val = SMC_CURRENT_BANK();
- DBG(2, "%s: bank signature probe returned 0x%04x\n", CARDNAME, val);
- if ((val & 0xFF00) != 0x3300) {
- if ((val & 0xFF) == 0x33) {
- printk(KERN_WARNING
- "%s: Detected possible byte-swapped interface"
- " at IOADDR 0x%lx\n", CARDNAME, ioaddr);
- }
- retval = -ENODEV;
- goto err_out;
- }
-
- /*
- * The above MIGHT indicate a device, but I need to write to
- * further test this.
- */
- SMC_SELECT_BANK(0);
- val = SMC_CURRENT_BANK();
- if ((val & 0xFF00) != 0x3300) {
- retval = -ENODEV;
- goto err_out;
- }
-
- /*
- * well, we've already written once, so hopefully another
- * time won't hurt. This time, I need to switch the bank
- * register to bank 1, so I can access the base address
- * register
- */
- SMC_SELECT_BANK(1);
- val = SMC_GET_BASE();
- val = ((val & 0x1F00) >> 3) << SMC_IO_SHIFT;
- if ((ioaddr & ((PAGE_SIZE-1)<<SMC_IO_SHIFT)) != val) {
- printk("%s: IOADDR %lx doesn't match configuration (%x).\n",
- CARDNAME, ioaddr, val);
- }
-
- /*
- * check if the revision register is something that I
- * recognize. These might need to be added to later,
- * as future revisions could be added.
- */
- SMC_SELECT_BANK(3);
- revision_register = SMC_GET_REV();
- DBG(2, "%s: revision = 0x%04x\n", CARDNAME, revision_register);
- version_string = chip_ids[ (revision_register >> 4) & 0xF];
- if (!version_string || (revision_register & 0xff00) != 0x3300) {
- /* I don't recognize this chip, so... */
- printk("%s: IO 0x%lx: Unrecognized revision register 0x%04x"
- ", Contact author.\n", CARDNAME,
- ioaddr, revision_register);
-
- retval = -ENODEV;
- goto err_out;
- }
-
- /* At this point I'll assume that the chip is an SMC91x. */
- if (version_printed++ == 0)
- printk("%s", version);
-
- /* fill in some of the fields */
- dev->base_addr = ioaddr;
- lp->version = revision_register & 0xff;
-
- /* Get the MAC address */
- SMC_SELECT_BANK(1);
- SMC_GET_MAC_ADDR(dev->dev_addr);
-
- /* now, reset the chip, and put it into a known state */
- smc_reset(dev);
-
- /*
- * If dev->irq is 0, then the device has to be banged on to see
- * what the IRQ is.
- *
- * This banging doesn't always detect the IRQ, for unknown reasons.
- * a workaround is to reset the chip and try again.
- *
- * Interestingly, the DOS packet driver *SETS* the IRQ on the card to
- * be what is requested on the command line. I don't do that, mostly
- * because the card that I have uses a non-standard method of accessing
- * the IRQs, and because this _should_ work in most configurations.
- *
- * Specifying an IRQ is done with the assumption that the user knows
- * what (s)he is doing. No checking is done!!!!
- */
- if (dev->irq < 1) {
- int trials;
-
- trials = 3;
- while (trials--) {
- dev->irq = smc_findirq(ioaddr);
- if (dev->irq)
- break;
- /* kick the card and try again */
- smc_reset(dev);
- }
- }
- if (dev->irq == 0) {
- printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
- dev->name);
- retval = -ENODEV;
- goto err_out;
- }
- dev->irq = irq_canonicalize(dev->irq);
-
- /* Fill in the fields of the device structure with ethernet values. */
- ether_setup(dev);
-
- dev->open = smc_open;
- dev->stop = smc_close;
- dev->hard_start_xmit = smc_hard_start_xmit;
- dev->tx_timeout = smc_timeout;
- dev->watchdog_timeo = msecs_to_jiffies(watchdog);
- dev->get_stats = smc_query_statistics;
- dev->set_multicast_list = smc_set_multicast_list;
- dev->ethtool_ops = &smc_ethtool_ops;
-
- spin_lock_init(&lp->lock);
- lp->mii.phy_id_mask = 0x1f;
- lp->mii.reg_num_mask = 0x1f;
- lp->mii.force_media = 0;
- lp->mii.full_duplex = 0;
- lp->mii.dev = dev;
- lp->mii.mdio_read = smc_phy_read;
- lp->mii.mdio_write = smc_phy_write;
-
- /*
- * Locate the phy, if any.
- */
- if (lp->version >= (CHIP_91100 << 4))
- smc_detect_phy(dev);
-
- /* Set default parameters */
- lp->msg_enable = NETIF_MSG_LINK;
- lp->ctl_rfduplx = 0;
- lp->ctl_rspeed = 10;
-
- if (lp->version >= (CHIP_91100 << 4)) {
- lp->ctl_rfduplx = 1;
- lp->ctl_rspeed = 100;
- }
-
- /* Grab the IRQ */
- retval = request_irq(dev->irq, &smc_interrupt, 0, dev->name, dev);
- if (retval)
- goto err_out;
-
- set_irq_type(dev->irq, IRQT_RISING);
-#ifdef SMC_USE_PXA_DMA
- {
- int dma = pxa_request_dma(dev->name, DMA_PRIO_LOW,
- smc_pxa_dma_irq, NULL);
- if (dma >= 0)
- dev->dma = dma;
- }
-#endif
-
- retval = register_netdev(dev);
- if (retval == 0) {
- /* now, print out the card info, in a short format.. */
- printk("%s: %s (rev %d) at %#lx IRQ %d",
- dev->name, version_string, revision_register & 0x0f,
- dev->base_addr, dev->irq);
-
- if (dev->dma != (unsigned char)-1)
- printk(" DMA %d", dev->dma);
-
- printk("%s%s\n", nowait ? " [nowait]" : "",
- THROTTLE_TX_PKTS ? " [throttle_tx]" : "");
-
- if (!is_valid_ether_addr(dev->dev_addr)) {
- printk("%s: Invalid ethernet MAC address. Please "
- "set using ifconfig\n", dev->name);
- } else {
- /* Print the Ethernet address */
- printk("%s: Ethernet addr: ", dev->name);
- for (i = 0; i < 5; i++)
- printk("%2.2x:", dev->dev_addr[i]);
- printk("%2.2x\n", dev->dev_addr[5]);
- }
-
- if (lp->phy_type == 0) {
- PRINTK("%s: No PHY found\n", dev->name);
- } else if ((lp->phy_type & 0xfffffff0) == 0x0016f840) {
- PRINTK("%s: PHY LAN83C183 (LAN91C111 Internal)\n", dev->name);
- } else if ((lp->phy_type & 0xfffffff0) == 0x02821c50) {
- PRINTK("%s: PHY LAN83C180\n", dev->name);
- }
- }
-
-err_out:
-#ifdef SMC_USE_PXA_DMA
- if (retval && dev->dma != (unsigned char)-1)
- pxa_free_dma(dev->dma);
-#endif
- return retval;
-}
-
-static int smc_enable_device(unsigned long attrib_phys)
-{
- unsigned long flags;
- unsigned char ecor, ecsr;
- void *addr;
-
- /*
- * Map the attribute space. This is overkill, but clean.
- */
- addr = ioremap(attrib_phys, ATTRIB_SIZE);
- if (!addr)
- return -ENOMEM;
-
- /*
- * Reset the device. We must disable IRQs around this
- * since a reset causes the IRQ line become active.
- */
- local_irq_save(flags);
- ecor = readb(addr + (ECOR << SMC_IO_SHIFT)) & ~ECOR_RESET;
- writeb(ecor | ECOR_RESET, addr + (ECOR << SMC_IO_SHIFT));
- readb(addr + (ECOR << SMC_IO_SHIFT));
-
- /*
- * Wait 100us for the chip to reset.
- */
- udelay(100);
-
- /*
- * The device will ignore all writes to the enable bit while
- * reset is asserted, even if the reset bit is cleared in the
- * same write. Must clear reset first, then enable the device.
- */
- writeb(ecor, addr + (ECOR << SMC_IO_SHIFT));
- writeb(ecor | ECOR_ENABLE, addr + (ECOR << SMC_IO_SHIFT));
-
- /*
- * Set the appropriate byte/word mode.
- */
- ecsr = readb(addr + (ECSR << SMC_IO_SHIFT)) & ~ECSR_IOIS8;
-#ifndef SMC_CAN_USE_16BIT
- ecsr |= ECSR_IOIS8;
-#endif
- writeb(ecsr, addr + (ECSR << SMC_IO_SHIFT));
- local_irq_restore(flags);
-
- iounmap(addr);
-
- /*
- * Wait for the chip to wake up. We could poll the control
- * register in the main register space, but that isn't mapped
- * yet. We know this is going to take 750us.
- */
- msleep(1);
-
- return 0;
-}
-
-/*
- * smc_init(void)
- * Input parameters:
- * dev->base_addr == 0, try to find all possible locations
- * dev->base_addr > 0x1ff, this is the address to check
- * dev->base_addr == <anything else>, return failure code
- *
- * Output:
- * 0 --> there is a device
- * anything else, error
- */
-static int smc_drv_probe(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct net_device *ndev;
- struct resource *res, *ext = NULL;
- unsigned int *addr;
- int ret;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- ret = -ENODEV;
- goto out;
- }
-
- /*
- * Request the regions.
- */
- if (!request_mem_region(res->start, SMC_IO_EXTENT, "smc91x")) {
- ret = -EBUSY;
- goto out;
- }
-
- ndev = alloc_etherdev(sizeof(struct smc_local));
- if (!ndev) {
- printk("%s: could not allocate device.\n", CARDNAME);
- ret = -ENOMEM;
- goto release_1;
- }
- SET_MODULE_OWNER(ndev);
- SET_NETDEV_DEV(ndev, dev);
-
- ndev->dma = (unsigned char)-1;
- ndev->irq = platform_get_irq(pdev, 0);
-
- ext = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (ext) {
- if (!request_mem_region(ext->start, ATTRIB_SIZE, ndev->name)) {
- ret = -EBUSY;
- goto release_1;
- }
-
-#if defined(CONFIG_SA1100_ASSABET)
- NCR_0 |= NCR_ENET_OSC_EN;
-#endif
-
- ret = smc_enable_device(ext->start);
- if (ret)
- goto release_both;
- }
-
- addr = ioremap(res->start, SMC_IO_EXTENT);
- if (!addr) {
- ret = -ENOMEM;
- goto release_both;
- }
-
- dev_set_drvdata(dev, ndev);
- ret = smc_probe(ndev, (unsigned long)addr);
- if (ret != 0) {
- dev_set_drvdata(dev, NULL);
- iounmap(addr);
- release_both:
- if (ext)
- release_mem_region(ext->start, ATTRIB_SIZE);
- free_netdev(ndev);
- release_1:
- release_mem_region(res->start, SMC_IO_EXTENT);
- out:
- printk("%s: not found (%d).\n", CARDNAME, ret);
- }
-#ifdef SMC_USE_PXA_DMA
- else {
- struct smc_local *lp = netdev_priv(ndev);
- lp->physaddr = res->start;
- }
-#endif
-
- return ret;
-}
-
-static int smc_drv_remove(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct net_device *ndev = dev_get_drvdata(dev);
- struct resource *res;
-
- dev_set_drvdata(dev, NULL);
-
- unregister_netdev(ndev);
-
- free_irq(ndev->irq, ndev);
-
-#ifdef SMC_USE_PXA_DMA
- if (ndev->dma != (unsigned char)-1)
- pxa_free_dma(ndev->dma);
-#endif
- iounmap((void *)ndev->base_addr);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (res)
- release_mem_region(res->start, ATTRIB_SIZE);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, SMC_IO_EXTENT);
-
- free_netdev(ndev);
-
- return 0;
-}
-
-static int smc_drv_suspend(struct device *dev, u32 state, u32 level)
-{
- struct net_device *ndev = dev_get_drvdata(dev);
-
- if (ndev && level == SUSPEND_DISABLE) {
- if (netif_running(ndev)) {
- netif_device_detach(ndev);
- smc_shutdown(ndev->base_addr);
- }
- }
- return 0;
-}
-
-static int smc_drv_resume(struct device *dev, u32 level)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct net_device *ndev = dev_get_drvdata(dev);
-
- if (ndev && level == RESUME_ENABLE) {
- struct smc_local *lp = netdev_priv(ndev);
- unsigned long ioaddr = ndev->base_addr;
-
- if (pdev->num_resources == 3)
- smc_enable_device(pdev->resource[2].start);
- if (netif_running(ndev)) {
- smc_reset(ndev);
- smc_enable(ndev);
- SMC_SELECT_BANK(1);
- SMC_SET_MAC_ADDR(ndev->dev_addr);
- if (lp->phy_type != 0)
- smc_phy_configure(ndev);
- netif_device_attach(ndev);
- }
- }
- return 0;
-}
-
-static struct device_driver smc_driver = {
- .name = CARDNAME,
- .bus = &platform_bus_type,
- .probe = smc_drv_probe,
- .remove = smc_drv_remove,
- .suspend = smc_drv_suspend,
- .resume = smc_drv_resume,
-};
-
-static int __init smc_init(void)
-{
-#ifdef MODULE
- if (io == -1)
- printk(KERN_WARNING
- "%s: You shouldn't use auto-probing with insmod!\n",
- CARDNAME);
-#endif
-
- return driver_register(&smc_driver);
-}
-
-static void __exit smc_cleanup(void)
-{
- driver_unregister(&smc_driver);
-}
-
-module_init(smc_init);
-module_exit(smc_cleanup);
+++ /dev/null
-/*------------------------------------------------------------------------
- . smc91x.h - macros for SMSC's 91C9x/91C1xx single-chip Ethernet device.
- .
- . Copyright (C) 1996 by Erik Stahlman
- . Copyright (C) 2001 Standard Microsystems Corporation
- . Developed by Simple Network Magic Corporation
- . Copyright (C) 2003 Monta Vista Software, Inc.
- . Unified SMC91x driver by Nicolas Pitre
- .
- . This program is free software; you can redistribute it and/or modify
- . it under the terms of the GNU General Public License as published by
- . the Free Software Foundation; either version 2 of the License, or
- . (at your option) any later version.
- .
- . This program is distributed in the hope that it will be useful,
- . but WITHOUT ANY WARRANTY; without even the implied warranty of
- . MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- . GNU General Public License for more details.
- .
- . You should have received a copy of the GNU General Public License
- . along with this program; if not, write to the Free Software
- . Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- .
- . Information contained in this file was obtained from the LAN91C111
- . manual from SMC. To get a copy, if you really want one, you can find
- . information under www.smsc.com.
- .
- . Authors
- . Erik Stahlman <erik@vt.edu>
- . Daris A Nevil <dnevil@snmc.com>
- . Nicolas Pitre <nico@cam.org>
- .
- ---------------------------------------------------------------------------*/
-#ifndef _SMC91X_H_
-#define _SMC91X_H_
-
-
-/*
- * Define your architecture specific bus configuration parameters here.
- */
-
-#if defined(CONFIG_SA1100_GRAPHICSCLIENT) || \
- defined(CONFIG_SA1100_PFS168) || \
- defined(CONFIG_SA1100_FLEXANET) || \
- defined(CONFIG_SA1100_GRAPHICSMASTER) || \
- defined(CONFIG_ARCH_LUBBOCK)
-
-/* We can only do 16-bit reads and writes in the static memory space. */
-#define SMC_CAN_USE_8BIT 0
-#define SMC_CAN_USE_16BIT 1
-#define SMC_CAN_USE_32BIT 0
-#define SMC_NOWAIT 1
-
-/* The first two address lines aren't connected... */
-#define SMC_IO_SHIFT 2
-
-#define SMC_inw(a, r) readw((a) + (r))
-#define SMC_outw(v, a, r) writew(v, (a) + (r))
-#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
-#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
-
-#elif defined(CONFIG_REDWOOD_5) || defined(CONFIG_REDWOOD_6)
-
-/* We can only do 16-bit reads and writes in the static memory space. */
-#define SMC_CAN_USE_8BIT 0
-#define SMC_CAN_USE_16BIT 1
-#define SMC_CAN_USE_32BIT 0
-#define SMC_NOWAIT 1
-
-#define SMC_IO_SHIFT 0
-
-#define SMC_inw(a, r) in_be16((volatile u16 *)((a) + (r)))
-#define SMC_outw(v, a, r) out_be16((volatile u16 *)((a) + (r)), v)
-#define SMC_insw(a, r, p, l) \
- do { \
- unsigned long __port = (a) + (r); \
- u16 *__p = (u16 *)(p); \
- int __l = (l); \
- insw(__port, __p, __l); \
- while (__l > 0) { \
- *__p = swab16(*__p); \
- __p++; \
- __l--; \
- } \
- } while (0)
-#define SMC_outsw(a, r, p, l) \
- do { \
- unsigned long __port = (a) + (r); \
- u16 *__p = (u16 *)(p); \
- int __l = (l); \
- while (__l > 0) { \
- /* Believe it or not, the swab isn't needed. */ \
- outw( /* swab16 */ (*__p++), __port); \
- __l--; \
- } \
- } while (0)
-#define set_irq_type(irq, type)
-
-#elif defined(CONFIG_SA1100_ASSABET)
-
-#include <asm/arch/neponset.h>
-
-/* We can only do 8-bit reads and writes in the static memory space. */
-#define SMC_CAN_USE_8BIT 1
-#define SMC_CAN_USE_16BIT 0
-#define SMC_CAN_USE_32BIT 0
-#define SMC_NOWAIT 1
-
-/* The first two address lines aren't connected... */
-#define SMC_IO_SHIFT 2
-
-#define SMC_inb(a, r) readb((a) + (r))
-#define SMC_outb(v, a, r) writeb(v, (a) + (r))
-#define SMC_insb(a, r, p, l) readsb((a) + (r), p, (l))
-#define SMC_outsb(a, r, p, l) writesb((a) + (r), p, (l))
-
-#elif defined(CONFIG_ARCH_INNOKOM) || \
- defined(CONFIG_MACH_MAINSTONE) || \
- defined(CONFIG_ARCH_PXA_IDP) || \
- defined(CONFIG_ARCH_RAMSES)
-
-#define SMC_CAN_USE_8BIT 1
-#define SMC_CAN_USE_16BIT 1
-#define SMC_CAN_USE_32BIT 1
-#define SMC_IO_SHIFT 0
-#define SMC_NOWAIT 1
-#define SMC_USE_PXA_DMA 1
-
-#define SMC_inb(a, r) readb((a) + (r))
-#define SMC_inw(a, r) readw((a) + (r))
-#define SMC_inl(a, r) readl((a) + (r))
-#define SMC_outb(v, a, r) writeb(v, (a) + (r))
-#define SMC_outl(v, a, r) writel(v, (a) + (r))
-#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
-#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
-
-/* We actually can't write halfwords properly if not word aligned */
-static inline void
-SMC_outw(u16 val, unsigned long ioaddr, int reg)
-{
- if (reg & 2) {
- unsigned int v = val << 16;
- v |= readl(ioaddr + (reg & ~2)) & 0xffff;
- writel(v, ioaddr + (reg & ~2));
- } else {
- writew(val, ioaddr + reg);
- }
-}
-
-#elif defined(CONFIG_ISA)
-
-#define SMC_CAN_USE_8BIT 1
-#define SMC_CAN_USE_16BIT 1
-#define SMC_CAN_USE_32BIT 0
-
-#define SMC_inb(a, r) inb((a) + (r))
-#define SMC_inw(a, r) inw((a) + (r))
-#define SMC_outb(v, a, r) outb(v, (a) + (r))
-#define SMC_outw(v, a, r) outw(v, (a) + (r))
-#define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
-#define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
-
-#else
-
-#define SMC_CAN_USE_8BIT 1
-#define SMC_CAN_USE_16BIT 1
-#define SMC_CAN_USE_32BIT 1
-#define SMC_NOWAIT 1
-
-#define SMC_inb(a, r) readb((a) + (r))
-#define SMC_inw(a, r) readw((a) + (r))
-#define SMC_inl(a, r) readl((a) + (r))
-#define SMC_outb(v, a, r) writeb(v, (a) + (r))
-#define SMC_outw(v, a, r) writew(v, (a) + (r))
-#define SMC_outl(v, a, r) writel(v, (a) + (r))
-#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
-#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
-
-#define RPC_LSA_DEFAULT RPC_LED_100_10
-#define RPC_LSB_DEFAULT RPC_LED_TX_RX
-
-#endif
-
-
-#ifdef SMC_USE_PXA_DMA
-/*
- * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
- * always happening in irq context so no need to worry about races. TX is
- * different and probably not worth it for that reason, and not as critical
- * as RX which can overrun memory and lose packets.
- */
-#include <linux/pci.h>
-#include <asm/dma.h>
-
-#ifdef SMC_insl
-#undef SMC_insl
-#define SMC_insl(a, r, p, l) \
- smc_pxa_dma_insl(a, lp->physaddr, r, dev->dma, p, l)
-static inline void
-smc_pxa_dma_insl(u_long ioaddr, u_long physaddr, int reg, int dma,
- u_char *buf, int len)
-{
- dma_addr_t dmabuf;
-
- /* fallback if no DMA available */
- if (dma == (unsigned char)-1) {
- readsl(ioaddr + reg, buf, len);
- return;
- }
-
- /* 64 bit alignment is required for memory to memory DMA */
- if ((long)buf & 4) {
- *((u32 *)buf)++ = SMC_inl(ioaddr, reg);
- len--;
- }
-
- len *= 4;
- dmabuf = dma_map_single(NULL, buf, len, PCI_DMA_FROMDEVICE);
- DCSR(dma) = DCSR_NODESC;
- DTADR(dma) = dmabuf;
- DSADR(dma) = physaddr + reg;
- DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
- DCMD_WIDTH4 | (DCMD_LENGTH & len));
- DCSR(dma) = DCSR_NODESC | DCSR_RUN;
- while (!(DCSR(dma) & DCSR_STOPSTATE));
- DCSR(dma) = 0;
- dma_unmap_single(NULL, dmabuf, len, PCI_DMA_FROMDEVICE);
-}
-#endif
-
-#ifdef SMC_insw
-#undef SMC_insw
-#define SMC_insw(a, r, p, l) \
- smc_pxa_dma_insw(a, lp->physaddr, r, dev->dma, p, l)
-static inline void
-smc_pxa_dma_insw(u_long ioaddr, u_long physaddr, int reg, int dma,
- u_char *buf, int len)
-{
- dma_addr_t dmabuf;
-
- /* fallback if no DMA available */
- if (dma == (unsigned char)-1) {
- readsw(ioaddr + reg, buf, len);
- return;
- }
-
- /* 64 bit alignment is required for memory to memory DMA */
- while ((long)buf & 6) {
- *((u16 *)buf)++ = SMC_inw(ioaddr, reg);
- len--;
- }
-
- len *= 2;
- dmabuf = dma_map_single(NULL, buf, len, PCI_DMA_FROMDEVICE);
- DCSR(dma) = DCSR_NODESC;
- DTADR(dma) = dmabuf;
- DSADR(dma) = physaddr + reg;
- DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
- DCMD_WIDTH2 | (DCMD_LENGTH & len));
- DCSR(dma) = DCSR_NODESC | DCSR_RUN;
- while (!(DCSR(dma) & DCSR_STOPSTATE));
- DCSR(dma) = 0;
- dma_unmap_single(NULL, dmabuf, len, PCI_DMA_FROMDEVICE);
-}
-#endif
-
-static void
-smc_pxa_dma_irq(int dma, void *dummy, struct pt_regs *regs)
-{
- DCSR(dma) = 0;
-}
-#endif /* SMC_USE_PXA_DMA */
-
-
-/* Because of bank switching, the LAN91x uses only 16 I/O ports */
-#ifndef SMC_IO_SHIFT
-#define SMC_IO_SHIFT 0
-#endif
-#define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
-
-
-/*
- . Bank Select Register:
- .
- . yyyy yyyy 0000 00xx
- . xx = bank number
- . yyyy yyyy = 0x33, for identification purposes.
-*/
-#define BANK_SELECT (14 << SMC_IO_SHIFT)
-
-
-// Transmit Control Register
-/* BANK 0 */
-#define TCR_REG SMC_REG(0x0000, 0)
-#define TCR_ENABLE 0x0001 // When 1 we can transmit
-#define TCR_LOOP 0x0002 // Controls output pin LBK
-#define TCR_FORCOL 0x0004 // When 1 will force a collision
-#define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0
-#define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames
-#define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier
-#define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation
-#define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error
-#define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback
-#define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode
-
-#define TCR_CLEAR 0 /* do NOTHING */
-/* the default settings for the TCR register : */
-#define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)
-
-
-// EPH Status Register
-/* BANK 0 */
-#define EPH_STATUS_REG SMC_REG(0x0002, 0)
-#define ES_TX_SUC 0x0001 // Last TX was successful
-#define ES_SNGL_COL 0x0002 // Single collision detected for last tx
-#define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx
-#define ES_LTX_MULT 0x0008 // Last tx was a multicast
-#define ES_16COL 0x0010 // 16 Collisions Reached
-#define ES_SQET 0x0020 // Signal Quality Error Test
-#define ES_LTXBRD 0x0040 // Last tx was a broadcast
-#define ES_TXDEFR 0x0080 // Transmit Deferred
-#define ES_LATCOL 0x0200 // Late collision detected on last tx
-#define ES_LOSTCARR 0x0400 // Lost Carrier Sense
-#define ES_EXC_DEF 0x0800 // Excessive Deferral
-#define ES_CTR_ROL 0x1000 // Counter Roll Over indication
-#define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin
-#define ES_TXUNRN 0x8000 // Tx Underrun
-
-
-// Receive Control Register
-/* BANK 0 */
-#define RCR_REG SMC_REG(0x0004, 0)
-#define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted
-#define RCR_PRMS 0x0002 // Enable promiscuous mode
-#define RCR_ALMUL 0x0004 // When set accepts all multicast frames
-#define RCR_RXEN 0x0100 // IFF this is set, we can receive packets
-#define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets
-#define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision
-#define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier
-#define RCR_SOFTRST 0x8000 // resets the chip
-
-/* the normal settings for the RCR register : */
-#define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
-#define RCR_CLEAR 0x0 // set it to a base state
-
-
-// Counter Register
-/* BANK 0 */
-#define COUNTER_REG SMC_REG(0x0006, 0)
-
-
-// Memory Information Register
-/* BANK 0 */
-#define MIR_REG SMC_REG(0x0008, 0)
-
-
-// Receive/Phy Control Register
-/* BANK 0 */
-#define RPC_REG SMC_REG(0x000A, 0)
-#define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
-#define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
-#define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
-#define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
-#define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
-#define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
-#define RPC_LED_RES (0x01) // LED = Reserved
-#define RPC_LED_10 (0x02) // LED = 10Mbps link detect
-#define RPC_LED_FD (0x03) // LED = Full Duplex Mode
-#define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
-#define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
-#define RPC_LED_TX (0x06) // LED = TX packet occurred
-#define RPC_LED_RX (0x07) // LED = RX packet occurred
-
-#ifndef RPC_LSA_DEFAULT
-#define RPC_LSA_DEFAULT RPC_LED_100
-#endif
-#ifndef RPC_LSB_DEFAULT
-#define RPC_LSB_DEFAULT RPC_LED_FD
-#endif
-
-#define RPC_DEFAULT (RPC_ANEG | (RPC_LSA_DEFAULT << RPC_LSXA_SHFT) | (RPC_LSB_DEFAULT << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
-
-
-/* Bank 0 0x0C is reserved */
-
-// Bank Select Register
-/* All Banks */
-#define BSR_REG 0x000E
-
-
-// Configuration Reg
-/* BANK 1 */
-#define CONFIG_REG SMC_REG(0x0000, 1)
-#define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy
-#define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL
-#define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus
-#define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode.
-
-// Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
-#define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
-
-
-// Base Address Register
-/* BANK 1 */
-#define BASE_REG SMC_REG(0x0002, 1)
-
-
-// Individual Address Registers
-/* BANK 1 */
-#define ADDR0_REG SMC_REG(0x0004, 1)
-#define ADDR1_REG SMC_REG(0x0006, 1)
-#define ADDR2_REG SMC_REG(0x0008, 1)
-
-
-// General Purpose Register
-/* BANK 1 */
-#define GP_REG SMC_REG(0x000A, 1)
-
-
-// Control Register
-/* BANK 1 */
-#define CTL_REG SMC_REG(0x000C, 1)
-#define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received
-#define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically
-#define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt
-#define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt
-#define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt
-#define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store
-#define CTL_RELOAD 0x0002 // When set reads EEPROM into registers
-#define CTL_STORE 0x0001 // When set stores registers into EEPROM
-
-
-// MMU Command Register
-/* BANK 2 */
-#define MMU_CMD_REG SMC_REG(0x0000, 2)
-#define MC_BUSY 1 // When 1 the last release has not completed
-#define MC_NOP (0<<5) // No Op
-#define MC_ALLOC (1<<5) // OR with number of 256 byte packets
-#define MC_RESET (2<<5) // Reset MMU to initial state
-#define MC_REMOVE (3<<5) // Remove the current rx packet
-#define MC_RELEASE (4<<5) // Remove and release the current rx packet
-#define MC_FREEPKT (5<<5) // Release packet in PNR register
-#define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit
-#define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs
-
-
-// Packet Number Register
-/* BANK 2 */
-#define PN_REG SMC_REG(0x0002, 2)
-
-
-// Allocation Result Register
-/* BANK 2 */
-#define AR_REG SMC_REG(0x0003, 2)
-#define AR_FAILED 0x80 // Alocation Failed
-
-
-// TX FIFO Ports Register
-/* BANK 2 */
-#define TXFIFO_REG SMC_REG(0x0004, 2)
-#define TXFIFO_TEMPTY 0x80 // TX FIFO Empty
-
-// RX FIFO Ports Register
-/* BANK 2 */
-#define RXFIFO_REG SMC_REG(0x0005, 2)
-#define RXFIFO_REMPTY 0x80 // RX FIFO Empty
-
-#define FIFO_REG SMC_REG(0x0004, 2)
-
-// Pointer Register
-/* BANK 2 */
-#define PTR_REG SMC_REG(0x0006, 2)
-#define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area
-#define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access
-#define PTR_READ 0x2000 // When 1 the operation is a read
-
-
-// Data Register
-/* BANK 2 */
-#define DATA_REG SMC_REG(0x0008, 2)
-
-
-// Interrupt Status/Acknowledge Register
-/* BANK 2 */
-#define INT_REG SMC_REG(0x000C, 2)
-
-
-// Interrupt Mask Register
-/* BANK 2 */
-#define IM_REG SMC_REG(0x000D, 2)
-#define IM_MDINT 0x80 // PHY MI Register 18 Interrupt
-#define IM_ERCV_INT 0x40 // Early Receive Interrupt
-#define IM_EPH_INT 0x20 // Set by Ethernet Protocol Handler section
-#define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns
-#define IM_ALLOC_INT 0x08 // Set when allocation request is completed
-#define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty
-#define IM_TX_INT 0x02 // Transmit Interrupt
-#define IM_RCV_INT 0x01 // Receive Interrupt
-
-
-// Multicast Table Registers
-/* BANK 3 */
-#define MCAST_REG1 SMC_REG(0x0000, 3)
-#define MCAST_REG2 SMC_REG(0x0002, 3)
-#define MCAST_REG3 SMC_REG(0x0004, 3)
-#define MCAST_REG4 SMC_REG(0x0006, 3)
-
-
-// Management Interface Register (MII)
-/* BANK 3 */
-#define MII_REG SMC_REG(0x0008, 3)
-#define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
-#define MII_MDOE 0x0008 // MII Output Enable
-#define MII_MCLK 0x0004 // MII Clock, pin MDCLK
-#define MII_MDI 0x0002 // MII Input, pin MDI
-#define MII_MDO 0x0001 // MII Output, pin MDO
-
-
-// Revision Register
-/* BANK 3 */
-/* ( hi: chip id low: rev # ) */
-#define REV_REG SMC_REG(0x000A, 3)
-
-
-// Early RCV Register
-/* BANK 3 */
-/* this is NOT on SMC9192 */
-#define ERCV_REG SMC_REG(0x000C, 3)
-#define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received
-#define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask
-
-
-// External Register
-/* BANK 7 */
-#define EXT_REG SMC_REG(0x0000, 7)
-
-
-#define CHIP_9192 3
-#define CHIP_9194 4
-#define CHIP_9195 5
-#define CHIP_9196 6
-#define CHIP_91100 7
-#define CHIP_91100FD 8
-#define CHIP_91111FD 9
-
-static const char * chip_ids[ 16 ] = {
- NULL, NULL, NULL,
- /* 3 */ "SMC91C90/91C92",
- /* 4 */ "SMC91C94",
- /* 5 */ "SMC91C95",
- /* 6 */ "SMC91C96",
- /* 7 */ "SMC91C100",
- /* 8 */ "SMC91C100FD",
- /* 9 */ "SMC91C11xFD",
- NULL, NULL, NULL,
- NULL, NULL, NULL};
-
-
-/*
- . Transmit status bits
-*/
-#define TS_SUCCESS 0x0001
-#define TS_LOSTCAR 0x0400
-#define TS_LATCOL 0x0200
-#define TS_16COL 0x0010
-
-/*
- . Receive status bits
-*/
-#define RS_ALGNERR 0x8000
-#define RS_BRODCAST 0x4000
-#define RS_BADCRC 0x2000
-#define RS_ODDFRAME 0x1000
-#define RS_TOOLONG 0x0800
-#define RS_TOOSHORT 0x0400
-#define RS_MULTICAST 0x0001
-#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
-
-
-/*
- * PHY IDs
- * LAN83C183 == LAN91C111 Internal PHY
- */
-#define PHY_LAN83C183 0x0016f840
-#define PHY_LAN83C180 0x02821c50
-
-/*
- * PHY Register Addresses (LAN91C111 Internal PHY)
- *
- * Generic PHY registers can be found in <linux/mii.h>
- *
- * These phy registers are specific to our on-board phy.
- */
-
-// PHY Configuration Register 1
-#define PHY_CFG1_REG 0x10
-#define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
-#define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
-#define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
-#define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
-#define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
-#define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
-#define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
-#define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
-#define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
-#define PHY_CFG1_TLVL_MASK 0x003C
-#define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
-
-
-// PHY Configuration Register 2
-#define PHY_CFG2_REG 0x11
-#define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
-#define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
-#define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
-#define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
-
-// PHY Status Output (and Interrupt status) Register
-#define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
-#define PHY_INT_INT 0x8000 // 1=bits have changed since last read
-#define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
-#define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
-#define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
-#define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
-#define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
-#define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
-#define PHY_INT_JAB 0x0100 // 1=Jabber detected
-#define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
-#define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
-
-// PHY Interrupt/Status Mask Register
-#define PHY_MASK_REG 0x13 // Interrupt Mask
-// Uses the same bit definitions as PHY_INT_REG
-
-
-/*
- * SMC91C96 ethernet config and status registers.
- * These are in the "attribute" space.
- */
-#define ECOR 0x8000
-#define ECOR_RESET 0x80
-#define ECOR_LEVEL_IRQ 0x40
-#define ECOR_WR_ATTRIB 0x04
-#define ECOR_ENABLE 0x01
-
-#define ECSR 0x8002
-#define ECSR_IOIS8 0x20
-#define ECSR_PWRDWN 0x04
-#define ECSR_INT 0x02
-
-#define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT)
-
-
-/*
- * Macros to abstract register access according to the data bus
- * capabilities. Please use those and not the in/out primitives.
- * Note: the following macros do *not* select the bank -- this must
- * be done separately as needed in the main code. The SMC_REG() macro
- * only uses the bank argument for debugging purposes (when enabled).
- */
-
-#if SMC_DEBUG > 0
-#define SMC_REG(reg, bank) \
- ({ \
- int __b = SMC_CURRENT_BANK(); \
- if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \
- printk( "%s: bank reg screwed (0x%04x)\n", \
- CARDNAME, __b ); \
- BUG(); \
- } \
- reg<<SMC_IO_SHIFT; \
- })
-#else
-#define SMC_REG(reg, bank) (reg<<SMC_IO_SHIFT)
-#endif
-
-#if SMC_CAN_USE_8BIT
-#define SMC_GET_PN() SMC_inb( ioaddr, PN_REG )
-#define SMC_SET_PN(x) SMC_outb( x, ioaddr, PN_REG )
-#define SMC_GET_AR() SMC_inb( ioaddr, AR_REG )
-#define SMC_GET_TXFIFO() SMC_inb( ioaddr, TXFIFO_REG )
-#define SMC_GET_RXFIFO() SMC_inb( ioaddr, RXFIFO_REG )
-#define SMC_GET_INT() SMC_inb( ioaddr, INT_REG )
-#define SMC_ACK_INT(x) SMC_outb( x, ioaddr, INT_REG )
-#define SMC_GET_INT_MASK() SMC_inb( ioaddr, IM_REG )
-#define SMC_SET_INT_MASK(x) SMC_outb( x, ioaddr, IM_REG )
-#else
-#define SMC_GET_PN() (SMC_inw( ioaddr, PN_REG ) & 0xFF)
-#define SMC_SET_PN(x) SMC_outw( x, ioaddr, PN_REG )
-#define SMC_GET_AR() (SMC_inw( ioaddr, PN_REG ) >> 8)
-#define SMC_GET_TXFIFO() (SMC_inw( ioaddr, TXFIFO_REG ) & 0xFF)
-#define SMC_GET_RXFIFO() (SMC_inw( ioaddr, TXFIFO_REG ) >> 8)
-#define SMC_GET_INT() (SMC_inw( ioaddr, INT_REG ) & 0xFF)
-#define SMC_ACK_INT(x) \
- do { \
- unsigned long __flags; \
- int __mask; \
- local_irq_save(__flags); \
- __mask = SMC_inw( ioaddr, INT_REG ) & ~0xff; \
- SMC_outw( __mask | (x), ioaddr, INT_REG ); \
- local_irq_restore(__flags); \
- } while (0)
-#define SMC_GET_INT_MASK() (SMC_inw( ioaddr, INT_REG ) >> 8)
-#define SMC_SET_INT_MASK(x) SMC_outw( (x) << 8, ioaddr, INT_REG )
-#endif
-
-#define SMC_CURRENT_BANK() SMC_inw( ioaddr, BANK_SELECT )
-#define SMC_SELECT_BANK(x) SMC_outw( x, ioaddr, BANK_SELECT )
-#define SMC_GET_BASE() SMC_inw( ioaddr, BASE_REG )
-#define SMC_SET_BASE(x) SMC_outw( x, ioaddr, BASE_REG )
-#define SMC_GET_CONFIG() SMC_inw( ioaddr, CONFIG_REG )
-#define SMC_SET_CONFIG(x) SMC_outw( x, ioaddr, CONFIG_REG )
-#define SMC_GET_COUNTER() SMC_inw( ioaddr, COUNTER_REG )
-#define SMC_GET_CTL() SMC_inw( ioaddr, CTL_REG )
-#define SMC_SET_CTL(x) SMC_outw( x, ioaddr, CTL_REG )
-#define SMC_GET_MII() SMC_inw( ioaddr, MII_REG )
-#define SMC_SET_MII(x) SMC_outw( x, ioaddr, MII_REG )
-#define SMC_GET_MIR() SMC_inw( ioaddr, MIR_REG )
-#define SMC_SET_MIR(x) SMC_outw( x, ioaddr, MIR_REG )
-#define SMC_GET_MMU_CMD() SMC_inw( ioaddr, MMU_CMD_REG )
-#define SMC_SET_MMU_CMD(x) SMC_outw( x, ioaddr, MMU_CMD_REG )
-#define SMC_GET_FIFO() SMC_inw( ioaddr, FIFO_REG )
-#define SMC_GET_PTR() SMC_inw( ioaddr, PTR_REG )
-#define SMC_SET_PTR(x) SMC_outw( x, ioaddr, PTR_REG )
-#define SMC_GET_RCR() SMC_inw( ioaddr, RCR_REG )
-#define SMC_SET_RCR(x) SMC_outw( x, ioaddr, RCR_REG )
-#define SMC_GET_REV() SMC_inw( ioaddr, REV_REG )
-#define SMC_GET_RPC() SMC_inw( ioaddr, RPC_REG )
-#define SMC_SET_RPC(x) SMC_outw( x, ioaddr, RPC_REG )
-#define SMC_GET_TCR() SMC_inw( ioaddr, TCR_REG )
-#define SMC_SET_TCR(x) SMC_outw( x, ioaddr, TCR_REG )
-
-#ifndef SMC_GET_MAC_ADDR
-#define SMC_GET_MAC_ADDR(addr) \
- do { \
- unsigned int __v; \
- __v = SMC_inw( ioaddr, ADDR0_REG ); \
- addr[0] = __v; addr[1] = __v >> 8; \
- __v = SMC_inw( ioaddr, ADDR1_REG ); \
- addr[2] = __v; addr[3] = __v >> 8; \
- __v = SMC_inw( ioaddr, ADDR2_REG ); \
- addr[4] = __v; addr[5] = __v >> 8; \
- } while (0)
-#endif
-
-#define SMC_SET_MAC_ADDR(addr) \
- do { \
- SMC_outw( addr[0]|(addr[1] << 8), ioaddr, ADDR0_REG ); \
- SMC_outw( addr[2]|(addr[3] << 8), ioaddr, ADDR1_REG ); \
- SMC_outw( addr[4]|(addr[5] << 8), ioaddr, ADDR2_REG ); \
- } while (0)
-
-#define SMC_CLEAR_MCAST() \
- do { \
- SMC_outw( 0, ioaddr, MCAST_REG1 ); \
- SMC_outw( 0, ioaddr, MCAST_REG2 ); \
- SMC_outw( 0, ioaddr, MCAST_REG3 ); \
- SMC_outw( 0, ioaddr, MCAST_REG4 ); \
- } while (0)
-#define SMC_SET_MCAST(x) \
- do { \
- unsigned char *mt = (x); \
- SMC_outw( mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1 ); \
- SMC_outw( mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2 ); \
- SMC_outw( mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3 ); \
- SMC_outw( mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4 ); \
- } while (0)
-
-#if SMC_CAN_USE_32BIT
-/*
- * Some setups just can't write 8 or 16 bits reliably when not aligned
- * to a 32 bit boundary. I tell you that exists!
- * We re-do the ones here that can be easily worked around if they can have
- * their low parts written to 0 without adverse effects.
- */
-#undef SMC_SELECT_BANK
-#define SMC_SELECT_BANK(x) SMC_outl( (x)<<16, ioaddr, 12<<SMC_IO_SHIFT )
-#undef SMC_SET_RPC
-#define SMC_SET_RPC(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(8, 0) )
-#undef SMC_SET_PN
-#define SMC_SET_PN(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(0, 2) )
-#undef SMC_SET_PTR
-#define SMC_SET_PTR(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(4, 2) )
-#endif
-
-#if SMC_CAN_USE_32BIT
-#define SMC_PUT_PKT_HDR(status, length) \
- SMC_outl( (status) | (length) << 16, ioaddr, DATA_REG )
-#define SMC_GET_PKT_HDR(status, length) \
- do { \
- unsigned int __val = SMC_inl( ioaddr, DATA_REG ); \
- (status) = __val & 0xffff; \
- (length) = __val >> 16; \
- } while (0)
-#else
-#define SMC_PUT_PKT_HDR(status, length) \
- do { \
- SMC_outw( status, ioaddr, DATA_REG ); \
- SMC_outw( length, ioaddr, DATA_REG ); \
- } while (0)
-#define SMC_GET_PKT_HDR(status, length) \
- do { \
- (status) = SMC_inw( ioaddr, DATA_REG ); \
- (length) = SMC_inw( ioaddr, DATA_REG ); \
- } while (0)
-#endif
-
-#if SMC_CAN_USE_32BIT
-#define SMC_PUSH_DATA(p, l) \
- do { \
- char *__ptr = (p); \
- int __len = (l); \
- if (__len >= 2 && (long)__ptr & 2) { \
- __len -= 2; \
- SMC_outw( *((u16 *)__ptr)++, ioaddr, DATA_REG );\
- } \
- SMC_outsl( ioaddr, DATA_REG, __ptr, __len >> 2); \
- if (__len & 2) { \
- __ptr += (__len & ~3); \
- SMC_outw( *((u16 *)__ptr), ioaddr, DATA_REG ); \
- } \
- } while (0)
-#define SMC_PULL_DATA(p, l) \
- do { \
- char *__ptr = (p); \
- int __len = (l); \
- if ((long)__ptr & 2) { \
- /* \
- * We want 32bit alignment here. \
- * Since some buses perform a full 32bit \
- * fetch even for 16bit data we can't use \
- * SMC_inw() here. Back both source (on chip \
- * and destination) pointers of 2 bytes. \
- */ \
- (long)__ptr &= ~2; \
- __len += 2; \
- SMC_SET_PTR( 2|PTR_READ|PTR_RCV|PTR_AUTOINC ); \
- } \
- __len += 2; \
- SMC_insl( ioaddr, DATA_REG, __ptr, __len >> 2); \
- } while (0)
-#elif SMC_CAN_USE_16BIT
-#define SMC_PUSH_DATA(p, l) SMC_outsw( ioaddr, DATA_REG, p, (l) >> 1 )
-#define SMC_PULL_DATA(p, l) SMC_insw ( ioaddr, DATA_REG, p, (l) >> 1 )
-#elif SMC_CAN_USE_8BIT
-#define SMC_PUSH_DATA(p, l) SMC_outsb( ioaddr, DATA_REG, p, l )
-#define SMC_PULL_DATA(p, l) SMC_insb ( ioaddr, DATA_REG, p, l )
-#endif
-
-#if ! SMC_CAN_USE_16BIT
-#define SMC_outw(x, ioaddr, reg) \
- do { \
- unsigned int __val16 = (x); \
- SMC_outb( __val16, ioaddr, reg ); \
- SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
- } while (0)
-#define SMC_inw(ioaddr, reg) \
- ({ \
- unsigned int __val16; \
- __val16 = SMC_inb( ioaddr, reg ); \
- __val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
- __val16; \
- })
-#endif
-
-
-#endif /* _SMC91X_H_ */
+++ /dev/null
-/*
- * This code is derived from the VIA reference driver (copyright message
- * below) provided to Red Hat by VIA Networking Technologies, Inc. for
- * addition to the Linux kernel.
- *
- * The code has been merged into one source file, cleaned up to follow
- * Linux coding style, ported to the Linux 2.6 kernel tree and cleaned
- * for 64bit hardware platforms.
- *
- * TODO
- * Big-endian support
- * rx_copybreak/alignment
- * Scatter gather
- * More testing
- *
- * The changes are (c) Copyright 2004, Red Hat Inc. <alan@redhat.com>
- * Additional fixes and clean up: Francois Romieu
- *
- * This source has not been verified for use in safety critical systems.
- *
- * Please direct queries about the revamped driver to the linux-kernel
- * list not VIA.
- *
- * Original code:
- *
- * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
- * All rights reserved.
- *
- * This software may be redistributed and/or modified under
- * the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or
- * any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * Author: Chuang Liang-Shing, AJ Jiang
- *
- * Date: Jan 24, 2003
- *
- * MODULE_LICENSE("GPL");
- *
- */
-
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/version.h>
-#include <linux/string.h>
-#include <linux/wait.h>
-#include <asm/io.h>
-#include <linux/if.h>
-#include <linux/config.h>
-#include <asm/uaccess.h>
-#include <linux/proc_fs.h>
-#include <linux/inetdevice.h>
-#include <linux/reboot.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/in.h>
-#include <linux/if_arp.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/udp.h>
-
-#include "via-velocity.h"
-
-
-static int velocity_nics = 0;
-static int msglevel = MSG_LEVEL_INFO;
-
-
-static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
-static struct ethtool_ops velocity_ethtool_ops;
-
-/*
- Define module options
-*/
-
-MODULE_AUTHOR("VIA Networking Technologies, Inc.");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
-
-#define VELOCITY_PARAM(N,D) \
- static const int N[MAX_UNITS]=OPTION_DEFAULT;\
- MODULE_PARM(N, "1-" __MODULE_STRING(MAX_UNITS) "i");\
- MODULE_PARM_DESC(N, D);
-
-#define RX_DESC_MIN 64
-#define RX_DESC_MAX 255
-#define RX_DESC_DEF 64
-VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
-
-#define TX_DESC_MIN 16
-#define TX_DESC_MAX 256
-#define TX_DESC_DEF 64
-VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
-
-#define VLAN_ID_MIN 0
-#define VLAN_ID_MAX 4095
-#define VLAN_ID_DEF 0
-/* VID_setting[] is used for setting the VID of NIC.
- 0: default VID.
- 1-4094: other VIDs.
-*/
-VELOCITY_PARAM(VID_setting, "802.1Q VLAN ID");
-
-#define RX_THRESH_MIN 0
-#define RX_THRESH_MAX 3
-#define RX_THRESH_DEF 0
-/* rx_thresh[] is used for controlling the receive fifo threshold.
- 0: indicate the rxfifo threshold is 128 bytes.
- 1: indicate the rxfifo threshold is 512 bytes.
- 2: indicate the rxfifo threshold is 1024 bytes.
- 3: indicate the rxfifo threshold is store & forward.
-*/
-VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
-
-#define DMA_LENGTH_MIN 0
-#define DMA_LENGTH_MAX 7
-#define DMA_LENGTH_DEF 0
-
-/* DMA_length[] is used for controlling the DMA length
- 0: 8 DWORDs
- 1: 16 DWORDs
- 2: 32 DWORDs
- 3: 64 DWORDs
- 4: 128 DWORDs
- 5: 256 DWORDs
- 6: SF(flush till emply)
- 7: SF(flush till emply)
-*/
-VELOCITY_PARAM(DMA_length, "DMA length");
-
-#define TAGGING_DEF 0
-/* enable_tagging[] is used for enabling 802.1Q VID tagging.
- 0: disable VID seeting(default).
- 1: enable VID setting.
-*/
-VELOCITY_PARAM(enable_tagging, "Enable 802.1Q tagging");
-
-#define IP_ALIG_DEF 0
-/* IP_byte_align[] is used for IP header DWORD byte aligned
- 0: indicate the IP header won't be DWORD byte aligned.(Default) .
- 1: indicate the IP header will be DWORD byte aligned.
- In some enviroment, the IP header should be DWORD byte aligned,
- or the packet will be droped when we receive it. (eg: IPVS)
-*/
-VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
-
-#define TX_CSUM_DEF 1
-/* txcsum_offload[] is used for setting the checksum offload ability of NIC.
- (We only support RX checksum offload now)
- 0: disable csum_offload[checksum offload
- 1: enable checksum offload. (Default)
-*/
-VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
-
-#define FLOW_CNTL_DEF 1
-#define FLOW_CNTL_MIN 1
-#define FLOW_CNTL_MAX 5
-
-/* flow_control[] is used for setting the flow control ability of NIC.
- 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
- 2: enable TX flow control.
- 3: enable RX flow control.
- 4: enable RX/TX flow control.
- 5: disable
-*/
-VELOCITY_PARAM(flow_control, "Enable flow control ability");
-
-#define MED_LNK_DEF 0
-#define MED_LNK_MIN 0
-#define MED_LNK_MAX 4
-/* speed_duplex[] is used for setting the speed and duplex mode of NIC.
- 0: indicate autonegotiation for both speed and duplex mode
- 1: indicate 100Mbps half duplex mode
- 2: indicate 100Mbps full duplex mode
- 3: indicate 10Mbps half duplex mode
- 4: indicate 10Mbps full duplex mode
-
- Note:
- if EEPROM have been set to the force mode, this option is ignored
- by driver.
-*/
-VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
-
-#define VAL_PKT_LEN_DEF 0
-/* ValPktLen[] is used for setting the checksum offload ability of NIC.
- 0: Receive frame with invalid layer 2 length (Default)
- 1: Drop frame with invalid layer 2 length
-*/
-VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
-
-#define WOL_OPT_DEF 0
-#define WOL_OPT_MIN 0
-#define WOL_OPT_MAX 7
-/* wol_opts[] is used for controlling wake on lan behavior.
- 0: Wake up if recevied a magic packet. (Default)
- 1: Wake up if link status is on/off.
- 2: Wake up if recevied an arp packet.
- 4: Wake up if recevied any unicast packet.
- Those value can be sumed up to support more than one option.
-*/
-VELOCITY_PARAM(wol_opts, "Wake On Lan options");
-
-#define INT_WORKS_DEF 20
-#define INT_WORKS_MIN 10
-#define INT_WORKS_MAX 64
-
-VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
-
-static int velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent);
-static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info);
-static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
-static void velocity_print_info(struct velocity_info *vptr);
-static int velocity_open(struct net_device *dev);
-static int velocity_change_mtu(struct net_device *dev, int mtu);
-static int velocity_xmit(struct sk_buff *skb, struct net_device *dev);
-static int velocity_intr(int irq, void *dev_instance, struct pt_regs *regs);
-static void velocity_set_multi(struct net_device *dev);
-static struct net_device_stats *velocity_get_stats(struct net_device *dev);
-static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static int velocity_close(struct net_device *dev);
-static int velocity_rx_srv(struct velocity_info *vptr, int status);
-static int velocity_receive_frame(struct velocity_info *, int idx);
-static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
-static void velocity_init_registers(struct velocity_info *vptr, enum velocity_init_type type);
-static void velocity_free_rd_ring(struct velocity_info *vptr);
-static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
-static int velocity_soft_reset(struct velocity_info *vptr);
-static void mii_init(struct velocity_info *vptr, u32 mii_status);
-static u32 velocity_get_opt_media_mode(struct velocity_info *vptr);
-static void velocity_print_link_status(struct velocity_info *vptr);
-static void safe_disable_mii_autopoll(struct mac_regs * regs);
-static void velocity_shutdown(struct velocity_info *vptr);
-static void enable_flow_control_ability(struct velocity_info *vptr);
-static void enable_mii_autopoll(struct mac_regs * regs);
-static int velocity_mii_read(struct mac_regs *, u8 byIdx, u16 * pdata);
-static int velocity_mii_write(struct mac_regs *, u8 byMiiAddr, u16 data);
-static int velocity_set_wol(struct velocity_info *vptr);
-static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context);
-static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context);
-static u32 mii_check_media_mode(struct mac_regs * regs);
-static u32 check_connection_type(struct mac_regs * regs);
-static void velocity_init_cam_filter(struct velocity_info *vptr);
-static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status);
-
-#ifdef CONFIG_PM
-static int velocity_suspend(struct pci_dev *pdev, u32 state);
-static int velocity_resume(struct pci_dev *pdev);
-
-static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr);
-
-static struct notifier_block velocity_inetaddr_notifier = {
- notifier_call:velocity_netdev_event,
-};
-
-#endif /* CONFIG_PM */
-
-/*
- * Internal board variants. At the moment we have only one
- */
-
-static struct velocity_info_tbl chip_info_table[] = {
- {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 256, 1, 0x00FFFFFFUL},
- {0, NULL}
-};
-
-/*
- * Describe the PCI device identifiers that we support in this
- * device driver. Used for hotplug autoloading.
- */
-
-static struct pci_device_id velocity_id_table[] __devinitdata = {
- {0x1106, 0x3119, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &chip_info_table[0]},
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, velocity_id_table);
-
-/**
- * get_chip_name - identifier to name
- * @id: chip identifier
- *
- * Given a chip identifier return a suitable description. Returns
- * a pointer a static string valid while the driver is loaded.
- */
-
-static char __devinit *get_chip_name(enum chip_type chip_id)
-{
- int i;
- for (i = 0; chip_info_table[i].name != NULL; i++)
- if (chip_info_table[i].chip_id == chip_id)
- break;
- return chip_info_table[i].name;
-}
-
-/**
- * velocity_remove1 - device unplug
- * @pdev: PCI device being removed
- *
- * Device unload callback. Called on an unplug or on module
- * unload for each active device that is present. Disconnects
- * the device from the network layer and frees all the resources
- */
-
-static void __devexit velocity_remove1(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct velocity_info *vptr = dev->priv;
-
- unregister_netdev(dev);
- iounmap(vptr->mac_regs);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- free_netdev(dev);
-}
-
-/**
- * velocity_set_int_opt - parser for integer options
- * @opt: pointer to option value
- * @val: value the user requested (or -1 for default)
- * @min: lowest value allowed
- * @max: highest value allowed
- * @def: default value
- * @name: property name
- * @dev: device name
- *
- * Set an integer property in the module options. This function does
- * all the verification and checking as well as reporting so that
- * we don't duplicate code for each option.
- */
-
-static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname)
-{
- if (val == -1)
- *opt = def;
- else if (val < min || val > max) {
- VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
- devname, name, min, max);
- *opt = def;
- } else {
- VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
- devname, name, val);
- *opt = val;
- }
-}
-
-/**
- * velocity_set_bool_opt - parser for boolean options
- * @opt: pointer to option value
- * @val: value the user requested (or -1 for default)
- * @def: default value (yes/no)
- * @flag: numeric value to set for true.
- * @name: property name
- * @dev: device name
- *
- * Set a boolean property in the module options. This function does
- * all the verification and checking as well as reporting so that
- * we don't duplicate code for each option.
- */
-
-static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname)
-{
- (*opt) &= (~flag);
- if (val == -1)
- *opt |= (def ? flag : 0);
- else if (val < 0 || val > 1) {
- printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
- devname, name);
- *opt |= (def ? flag : 0);
- } else {
- printk(KERN_INFO "%s: set parameter %s to %s\n",
- devname, name, val ? "TRUE" : "FALSE");
- *opt |= (val ? flag : 0);
- }
-}
-
-/**
- * velocity_get_options - set options on device
- * @opts: option structure for the device
- * @index: index of option to use in module options array
- * @devname: device name
- *
- * Turn the module and command options into a single structure
- * for the current device
- */
-
-static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
-{
-
- velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
- velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
- velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
- velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
- velocity_set_int_opt(&opts->vid, VID_setting[index], VLAN_ID_MIN, VLAN_ID_MAX, VLAN_ID_DEF, "VID_setting", devname);
- velocity_set_bool_opt(&opts->flags, enable_tagging[index], TAGGING_DEF, VELOCITY_FLAGS_TAGGING, "enable_tagging", devname);
- velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
- velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
- velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
- velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
- velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
- velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname);
- velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
- opts->numrx = (opts->numrx & ~3);
-}
-
-/**
- * velocity_init_cam_filter - initialise CAM
- * @vptr: velocity to program
- *
- * Initialize the content addressable memory used for filters. Load
- * appropriately according to the presence of VLAN
- */
-
-static void velocity_init_cam_filter(struct velocity_info *vptr)
-{
- struct mac_regs * regs = vptr->mac_regs;
-
- /* T urn on MCFG_PQEN, turn off MCFG_RTGOPT */
- WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
- WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
-
- /* Disable all CAMs */
- memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
- memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
- mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
- mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
-
- /* Enable first VCAM */
- if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
- /* If Tagging option is enabled and VLAN ID is not zero, then
- turn on MCFG_RTGOPT also */
- if (vptr->options.vid != 0)
- WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG);
-
- mac_set_cam(regs, 0, (u8 *) & (vptr->options.vid), VELOCITY_VLAN_ID_CAM);
- vptr->vCAMmask[0] |= 1;
- mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
- } else {
- u16 temp = 0;
- mac_set_cam(regs, 0, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
- temp = 1;
- mac_set_cam_mask(regs, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
- }
-}
-
-/**
- * velocity_rx_reset - handle a receive reset
- * @vptr: velocity we are resetting
- *
- * Reset the ownership and status for the receive ring side.
- * Hand all the receive queue to the NIC.
- */
-
-static void velocity_rx_reset(struct velocity_info *vptr)
-{
-
- struct mac_regs * regs = vptr->mac_regs;
- int i;
-
- vptr->rd_used = vptr->rd_curr = 0;
-
- /*
- * Init state, all RD entries belong to the NIC
- */
- for (i = 0; i < vptr->options.numrx; ++i)
- vptr->rd_ring[i].rdesc0.owner = cpu_to_le32(OWNED_BY_NIC);
-
- writew(vptr->options.numrx, ®s->RBRDU);
- writel(vptr->rd_pool_dma, ®s->RDBaseLo);
- writew(0, ®s->RDIdx);
- writew(vptr->options.numrx - 1, ®s->RDCSize);
-}
-
-/**
- * velocity_init_registers - initialise MAC registers
- * @vptr: velocity to init
- * @type: type of initialisation (hot or cold)
- *
- * Initialise the MAC on a reset or on first set up on the
- * hardware.
- */
-
-static void velocity_init_registers(struct velocity_info *vptr,
- enum velocity_init_type type)
-{
- struct mac_regs * regs = vptr->mac_regs;
- int i, mii_status;
-
- mac_wol_reset(regs);
-
- switch (type) {
- case VELOCITY_INIT_RESET:
- case VELOCITY_INIT_WOL:
-
- netif_stop_queue(vptr->dev);
-
- /*
- * Reset RX to prevent RX pointer not on the 4X location
- */
- velocity_rx_reset(vptr);
- mac_rx_queue_run(regs);
- mac_rx_queue_wake(regs);
-
- mii_status = velocity_get_opt_media_mode(vptr);
- if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
- velocity_print_link_status(vptr);
- if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
- netif_wake_queue(vptr->dev);
- }
-
- enable_flow_control_ability(vptr);
-
- mac_clear_isr(regs);
- writel(CR0_STOP, ®s->CR0Clr);
- writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
- ®s->CR0Set);
-
- break;
-
- case VELOCITY_INIT_COLD:
- default:
- /*
- * Do reset
- */
- velocity_soft_reset(vptr);
- mdelay(5);
-
- mac_eeprom_reload(regs);
- for (i = 0; i < 6; i++) {
- writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
- }
- /*
- * clear Pre_ACPI bit.
- */
- BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
- mac_set_rx_thresh(regs, vptr->options.rx_thresh);
- mac_set_dma_length(regs, vptr->options.DMA_length);
-
- writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
- /*
- * Bback off algorithm use original IEEE standard
- */
- BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
-
- /*
- * Set packet filter: Receive directed and broadcast address
- */
- velocity_set_multi(vptr->dev);
-
- /*
- * Enable MII auto-polling
- */
- enable_mii_autopoll(regs);
-
- vptr->int_mask = INT_MASK_DEF;
-
- writel(cpu_to_le32(vptr->rd_pool_dma), ®s->RDBaseLo);
- writew(vptr->options.numrx - 1, ®s->RDCSize);
- mac_rx_queue_run(regs);
- mac_rx_queue_wake(regs);
-
- writew(vptr->options.numtx - 1, ®s->TDCSize);
-
- for (i = 0; i < vptr->num_txq; i++) {
- writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i]));
- mac_tx_queue_run(regs, i);
- }
-
- velocity_init_cam_filter(vptr);
-
- init_flow_control_register(vptr);
-
- writel(CR0_STOP, ®s->CR0Clr);
- writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
-
- mii_status = velocity_get_opt_media_mode(vptr);
- netif_stop_queue(vptr->dev);
- mac_clear_isr(regs);
-
- mii_init(vptr, mii_status);
-
- if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
- velocity_print_link_status(vptr);
- if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
- netif_wake_queue(vptr->dev);
- }
-
- enable_flow_control_ability(vptr);
- mac_hw_mibs_init(regs);
- mac_write_int_mask(vptr->int_mask, regs);
- mac_clear_isr(regs);
-
- }
-}
-
-/**
- * velocity_soft_reset - soft reset
- * @vptr: velocity to reset
- *
- * Kick off a soft reset of the velocity adapter and then poll
- * until the reset sequence has completed before returning.
- */
-
-static int velocity_soft_reset(struct velocity_info *vptr)
-{
- struct mac_regs * regs = vptr->mac_regs;
- int i = 0;
-
- writel(CR0_SFRST, ®s->CR0Set);
-
- for (i = 0; i < W_MAX_TIMEOUT; i++) {
- udelay(5);
- if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
- break;
- }
-
- if (i == W_MAX_TIMEOUT) {
- writel(CR0_FORSRST, ®s->CR0Set);
- /* FIXME: PCI POSTING */
- /* delay 2ms */
- mdelay(2);
- }
- return 0;
-}
-
-/**
- * velocity_found1 - set up discovered velocity card
- * @pdev: PCI device
- * @ent: PCI device table entry that matched
- *
- * Configure a discovered adapter from scratch. Return a negative
- * errno error code on failure paths.
- */
-
-static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- static int first = 1;
- struct net_device *dev;
- int i;
- struct velocity_info_tbl *info = (struct velocity_info_tbl *) ent->driver_data;
- struct velocity_info *vptr;
- struct mac_regs * regs;
- int ret = -ENOMEM;
-
- if (velocity_nics++ >= MAX_UNITS) {
- printk(KERN_NOTICE VELOCITY_NAME ": already found %d NICs.\n",
- velocity_nics);
- return -ENODEV;
- }
-
- dev = alloc_etherdev(sizeof(struct velocity_info));
-
- if (dev == NULL) {
- printk(KERN_ERR VELOCITY_NAME ": allocate net device failed.\n");
- goto out;
- }
-
- /* Chain it all together */
-
- SET_MODULE_OWNER(dev);
- SET_NETDEV_DEV(dev, &pdev->dev);
- vptr = dev->priv;
-
-
- if (first) {
- printk(KERN_INFO "%s Ver. %s\n",
- VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
- printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
- printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
- first = 0;
- }
-
- velocity_init_info(pdev, vptr, info);
-
- vptr->dev = dev;
-
- dev->priv = vptr;
- dev->irq = pdev->irq;
-
- ret = pci_enable_device(pdev);
- if (ret < 0)
- goto err_free_dev;
-
- ret = velocity_get_pci_info(vptr, pdev);
- if (ret < 0) {
- printk(KERN_ERR VELOCITY_NAME ": Failed to find PCI device.\n");
- goto err_disable;
- }
-
- ret = pci_request_regions(pdev, VELOCITY_NAME);
- if (ret < 0) {
- printk(KERN_ERR VELOCITY_NAME ": Failed to find PCI device.\n");
- goto err_disable;
- }
-
- regs = ioremap(vptr->memaddr, vptr->io_size);
- if (regs == NULL) {
- ret = -EIO;
- goto err_release_res;
- }
-
- vptr->mac_regs = regs;
-
- mac_wol_reset(regs);
-
- dev->base_addr = vptr->ioaddr;
-
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = readb(®s->PAR[i]);
-
-
- velocity_get_options(&vptr->options, velocity_nics - 1, dev->name);
-
- /*
- * Mask out the options cannot be set to the chip
- */
-
- vptr->options.flags &= info->flags;
-
- /*
- * Enable the chip specified capbilities
- */
-
- vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
-
- vptr->wol_opts = vptr->options.wol_opts;
- vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
-
- vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
-
- dev->irq = pdev->irq;
- dev->open = velocity_open;
- dev->hard_start_xmit = velocity_xmit;
- dev->stop = velocity_close;
- dev->get_stats = velocity_get_stats;
- dev->set_multicast_list = velocity_set_multi;
- dev->do_ioctl = velocity_ioctl;
- dev->ethtool_ops = &velocity_ethtool_ops;
- dev->change_mtu = velocity_change_mtu;
-#ifdef VELOCITY_ZERO_COPY_SUPPORT
- dev->features |= NETIF_F_SG;
-#endif
-
- if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) {
- dev->features |= NETIF_F_HW_CSUM;
- }
-
- ret = register_netdev(dev);
- if (ret < 0)
- goto err_iounmap;
-
- velocity_print_info(vptr);
- pci_set_drvdata(pdev, dev);
-
- /* and leave the chip powered down */
-
- pci_set_power_state(pdev, 3);
-out:
- return ret;
-
-err_iounmap:
- iounmap(regs);
-err_release_res:
- pci_release_regions(pdev);
-err_disable:
- pci_disable_device(pdev);
-err_free_dev:
- free_netdev(dev);
- goto out;
-}
-
-/**
- * velocity_print_info - per driver data
- * @vptr: velocity
- *
- * Print per driver data as the kernel driver finds Velocity
- * hardware
- */
-
-static void __devinit velocity_print_info(struct velocity_info *vptr)
-{
- struct net_device *dev = vptr->dev;
-
- printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
- printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
- dev->name,
- dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
- dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
-}
-
-/**
- * velocity_init_info - init private data
- * @pdev: PCI device
- * @vptr: Velocity info
- * @info: Board type
- *
- * Set up the initial velocity_info struct for the device that has been
- * discovered.
- */
-
-static void __devinit velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info)
-{
- memset(vptr, 0, sizeof(struct velocity_info));
-
- vptr->pdev = pdev;
- vptr->chip_id = info->chip_id;
- vptr->io_size = info->io_size;
- vptr->num_txq = info->txqueue;
- vptr->multicast_limit = MCAM_SIZE;
-
- spin_lock_init(&vptr->lock);
- spin_lock_init(&vptr->xmit_lock);
-}
-
-/**
- * velocity_get_pci_info - retrieve PCI info for device
- * @vptr: velocity device
- * @pdev: PCI device it matches
- *
- * Retrieve the PCI configuration space data that interests us from
- * the kernel PCI layer
- */
-
-static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
-{
-
- if(pci_read_config_byte(pdev, PCI_REVISION_ID, &vptr->rev_id) < 0)
- return -EIO;
-
- pci_set_master(pdev);
-
- vptr->ioaddr = pci_resource_start(pdev, 0);
- vptr->memaddr = pci_resource_start(pdev, 1);
-
- if(!(pci_resource_flags(pdev, 0) & IORESOURCE_IO))
- {
- printk(KERN_ERR "%s: region #0 is not an I/O resource, aborting.\n",
- pci_name(pdev));
- return -EINVAL;
- }
-
- if((pci_resource_flags(pdev, 1) & IORESOURCE_IO))
- {
- printk(KERN_ERR "%s: region #1 is an I/O resource, aborting.\n",
- pci_name(pdev));
- return -EINVAL;
- }
-
- if(pci_resource_len(pdev, 1) < 256)
- {
- printk(KERN_ERR "%s: region #1 is too small.\n",
- pci_name(pdev));
- return -EINVAL;
- }
- vptr->pdev = pdev;
-
- return 0;
-}
-
-/**
- * velocity_init_rings - set up DMA rings
- * @vptr: Velocity to set up
- *
- * Allocate PCI mapped DMA rings for the receive and transmit layer
- * to use.
- */
-
-static int velocity_init_rings(struct velocity_info *vptr)
-{
- int i;
- unsigned int psize;
- unsigned int tsize;
- dma_addr_t pool_dma;
- u8 *pool;
-
- /*
- * Allocate all RD/TD rings a single pool
- */
-
- psize = vptr->options.numrx * sizeof(struct rx_desc) +
- vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
-
- /*
- * pci_alloc_consistent() fulfills the requirement for 64 bytes
- * alignment
- */
- pool = pci_alloc_consistent(vptr->pdev, psize, &pool_dma);
-
- if (pool == NULL) {
- printk(KERN_ERR "%s : DMA memory allocation failed.\n",
- vptr->dev->name);
- return -ENOMEM;
- }
-
- memset(pool, 0, psize);
-
- vptr->rd_ring = (struct rx_desc *) pool;
-
- vptr->rd_pool_dma = pool_dma;
-
- tsize = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
- vptr->tx_bufs = pci_alloc_consistent(vptr->pdev, tsize,
- &vptr->tx_bufs_dma);
-
- if (vptr->tx_bufs == NULL) {
- printk(KERN_ERR "%s: DMA memory allocation failed.\n",
- vptr->dev->name);
- pci_free_consistent(vptr->pdev, psize, pool, pool_dma);
- return -ENOMEM;
- }
-
- memset(vptr->tx_bufs, 0, vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq);
-
- i = vptr->options.numrx * sizeof(struct rx_desc);
- pool += i;
- pool_dma += i;
- for (i = 0; i < vptr->num_txq; i++) {
- int offset = vptr->options.numtx * sizeof(struct tx_desc);
-
- vptr->td_pool_dma[i] = pool_dma;
- vptr->td_rings[i] = (struct tx_desc *) pool;
- pool += offset;
- pool_dma += offset;
- }
- return 0;
-}
-
-/**
- * velocity_free_rings - free PCI ring pointers
- * @vptr: Velocity to free from
- *
- * Clean up the PCI ring buffers allocated to this velocity.
- */
-
-static void velocity_free_rings(struct velocity_info *vptr)
-{
- int size;
-
- size = vptr->options.numrx * sizeof(struct rx_desc) +
- vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
-
- pci_free_consistent(vptr->pdev, size, vptr->rd_ring, vptr->rd_pool_dma);
-
- size = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
-
- pci_free_consistent(vptr->pdev, size, vptr->tx_bufs, vptr->tx_bufs_dma);
-}
-
-/**
- * velocity_init_rd_ring - set up receive ring
- * @vptr: velocity to configure
- *
- * Allocate and set up the receive buffers for each ring slot and
- * assign them to the network adapter.
- */
-
-static int velocity_init_rd_ring(struct velocity_info *vptr)
-{
- int i, ret = -ENOMEM;
- struct rx_desc *rd;
- struct velocity_rd_info *rd_info;
- unsigned int rsize = sizeof(struct velocity_rd_info) *
- vptr->options.numrx;
-
- vptr->rd_info = kmalloc(rsize, GFP_KERNEL);
- if(vptr->rd_info == NULL)
- goto out;
- memset(vptr->rd_info, 0, rsize);
-
- /* Init the RD ring entries */
- for (i = 0; i < vptr->options.numrx; i++) {
- rd = &(vptr->rd_ring[i]);
- rd_info = &(vptr->rd_info[i]);
-
- ret = velocity_alloc_rx_buf(vptr, i);
- if (ret < 0) {
- VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
- "%s: failed to allocate RX buffer.\n",
- vptr->dev->name);
- velocity_free_rd_ring(vptr);
- goto out;
- }
- rd->rdesc0.owner = OWNED_BY_NIC;
- }
- vptr->rd_used = vptr->rd_curr = 0;
-out:
- return ret;
-}
-
-/**
- * velocity_free_rd_ring - set up receive ring
- * @vptr: velocity to clean up
- *
- * Free the receive buffers for each ring slot and any
- * attached socket buffers that need to go away.
- */
-
-static void velocity_free_rd_ring(struct velocity_info *vptr)
-{
- int i;
-
- if (vptr->rd_info == NULL)
- return;
-
- for (i = 0; i < vptr->options.numrx; i++) {
- struct velocity_rd_info *rd_info = &(vptr->rd_info[i]);
-
- if (!rd_info->skb_dma)
- continue;
- pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
- rd_info->skb_dma = (dma_addr_t) NULL;
-
- dev_kfree_skb(rd_info->skb);
- rd_info->skb = NULL;
- }
-
- kfree(vptr->rd_info);
- vptr->rd_info = NULL;
-}
-
-/**
- * velocity_init_td_ring - set up transmit ring
- * @vptr: velocity
- *
- * Set up the transmit ring and chain the ring pointers together.
- * Returns zero on success or a negative posix errno code for
- * failure.
- */
-
-static int velocity_init_td_ring(struct velocity_info *vptr)
-{
- int i, j;
- dma_addr_t curr;
- struct tx_desc *td;
- struct velocity_td_info *td_info;
- unsigned int tsize = sizeof(struct velocity_td_info) *
- vptr->options.numtx;
-
- /* Init the TD ring entries */
- for (j = 0; j < vptr->num_txq; j++) {
- curr = vptr->td_pool_dma[j];
-
- vptr->td_infos[j] = kmalloc(tsize, GFP_KERNEL);
- if(vptr->td_infos[j] == NULL)
- {
- while(--j >= 0)
- kfree(vptr->td_infos[j]);
- return -ENOMEM;
- }
- memset(vptr->td_infos[j], 0, tsize);
-
- for (i = 0; i < vptr->options.numtx; i++, curr += sizeof(struct tx_desc)) {
- td = &(vptr->td_rings[j][i]);
- td_info = &(vptr->td_infos[j][i]);
- td_info->buf = vptr->tx_bufs + (i + j) * PKT_BUF_SZ;
- td_info->buf_dma = vptr->tx_bufs_dma + (i + j) * PKT_BUF_SZ;
- }
- vptr->td_tail[j] = vptr->td_curr[j] = vptr->td_used[j] = 0;
- }
- return 0;
-}
-
-/*
- * FIXME: could we merge this with velocity_free_tx_buf ?
- */
-
-static void velocity_free_td_ring_entry(struct velocity_info *vptr,
- int q, int n)
-{
- struct velocity_td_info * td_info = &(vptr->td_infos[q][n]);
- int i;
-
- if (td_info == NULL)
- return;
-
- if (td_info->skb) {
- for (i = 0; i < td_info->nskb_dma; i++)
- {
- if (td_info->skb_dma[i]) {
- pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
- td_info->skb->len, PCI_DMA_TODEVICE);
- td_info->skb_dma[i] = (dma_addr_t) NULL;
- }
- }
- dev_kfree_skb(td_info->skb);
- td_info->skb = NULL;
- }
-}
-
-/**
- * velocity_free_td_ring - free td ring
- * @vptr: velocity
- *
- * Free up the transmit ring for this particular velocity adapter.
- * We free the ring contents but not the ring itself.
- */
-
-static void velocity_free_td_ring(struct velocity_info *vptr)
-{
- int i, j;
-
- for (j = 0; j < vptr->num_txq; j++) {
- if (vptr->td_infos[j] == NULL)
- continue;
- for (i = 0; i < vptr->options.numtx; i++) {
- velocity_free_td_ring_entry(vptr, j, i);
-
- }
- if (vptr->td_infos[j]) {
- kfree(vptr->td_infos[j]);
- vptr->td_infos[j] = NULL;
- }
- }
-}
-
-/**
- * velocity_rx_srv - service RX interrupt
- * @vptr: velocity
- * @status: adapter status (unused)
- *
- * Walk the receive ring of the velocity adapter and remove
- * any received packets from the receive queue. Hand the ring
- * slots back to the adapter for reuse.
- */
-
-static int velocity_rx_srv(struct velocity_info *vptr, int status)
-{
- struct rx_desc *rd;
- struct net_device_stats *stats = &vptr->stats;
- struct mac_regs * regs = vptr->mac_regs;
- int rd_curr = vptr->rd_curr;
- int works = 0;
-
- while (1) {
-
- rd = &(vptr->rd_ring[rd_curr]);
-
- if ((vptr->rd_info[rd_curr]).skb == NULL) {
- if (velocity_alloc_rx_buf(vptr, rd_curr) < 0)
- break;
- }
-
- if (works++ > 15)
- break;
-
- if (rd->rdesc0.owner == OWNED_BY_NIC)
- break;
-
- /*
- * Don't drop CE or RL error frame although RXOK is off
- * FIXME: need to handle copybreak
- */
- if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
- if (velocity_receive_frame(vptr, rd_curr) == 0) {
- if (velocity_alloc_rx_buf(vptr, rd_curr) < 0) {
- VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not allocate rx buf\n", vptr->dev->name);
- break;
- }
- } else {
- stats->rx_dropped++;
- }
- } else {
- if (rd->rdesc0.RSR & RSR_CRC)
- stats->rx_crc_errors++;
- if (rd->rdesc0.RSR & RSR_FAE)
- stats->rx_frame_errors++;
-
- stats->rx_dropped++;
- }
-
- rd->inten = 1;
-
- if (++vptr->rd_used >= 4) {
- int i, rd_prev = rd_curr;
- for (i = 0; i < 4; i++) {
- if (--rd_prev < 0)
- rd_prev = vptr->options.numrx - 1;
-
- rd = &(vptr->rd_ring[rd_prev]);
- rd->rdesc0.owner = OWNED_BY_NIC;
- }
- writew(4, &(regs->RBRDU));
- vptr->rd_used -= 4;
- }
-
- vptr->dev->last_rx = jiffies;
-
- rd_curr++;
- if (rd_curr >= vptr->options.numrx)
- rd_curr = 0;
- }
- vptr->rd_curr = rd_curr;
- VAR_USED(stats);
- return works;
-}
-
-/**
- * velocity_rx_csum - checksum process
- * @rd: receive packet descriptor
- * @skb: network layer packet buffer
- *
- * Process the status bits for the received packet and determine
- * if the checksum was computed and verified by the hardware
- */
-
-static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
-{
- skb->ip_summed = CHECKSUM_NONE;
-
- if (rd->rdesc1.CSM & CSM_IPKT) {
- if (rd->rdesc1.CSM & CSM_IPOK) {
- if ((rd->rdesc1.CSM & CSM_TCPKT) ||
- (rd->rdesc1.CSM & CSM_UDPKT)) {
- if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
- return;
- }
- }
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- }
- }
-}
-
-/**
- * velocity_receive_frame - received packet processor
- * @vptr: velocity we are handling
- * @idx: ring index
- *
- * A packet has arrived. We process the packet and if appropriate
- * pass the frame up the network stack
- */
-
-static int velocity_receive_frame(struct velocity_info *vptr, int idx)
-{
- struct net_device_stats *stats = &vptr->stats;
- struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
- struct rx_desc *rd = &(vptr->rd_ring[idx]);
- struct sk_buff *skb;
-
- if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
- VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
- stats->rx_length_errors++;
- return -EINVAL;
- }
-
- if (rd->rdesc0.RSR & RSR_MAR)
- vptr->stats.multicast++;
-
- skb = rd_info->skb;
- skb->dev = vptr->dev;
-
- pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
- rd_info->skb_dma = (dma_addr_t) NULL;
- rd_info->skb = NULL;
-
- /* FIXME - memmove ? */
- if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
- int i;
- for (i = rd->rdesc0.len + 4; i >= 0; i--)
- *(skb->data + i + 2) = *(skb->data + i);
- skb->data += 2;
- skb->tail += 2;
- }
-
- skb_put(skb, (rd->rdesc0.len - 4));
- skb->protocol = eth_type_trans(skb, skb->dev);
-
- /*
- * Drop frame not meeting IEEE 802.3
- */
-
- if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
- if (rd->rdesc0.RSR & RSR_RL) {
- stats->rx_length_errors++;
- return -EINVAL;
- }
- }
-
- velocity_rx_csum(rd, skb);
-
- /*
- * FIXME: need rx_copybreak handling
- */
-
- stats->rx_bytes += skb->len;
- netif_rx(skb);
-
- return 0;
-}
-
-/**
- * velocity_alloc_rx_buf - allocate aligned receive buffer
- * @vptr: velocity
- * @idx: ring index
- *
- * Allocate a new full sized buffer for the reception of a frame and
- * map it into PCI space for the hardware to use. The hardware
- * requires *64* byte alignment of the buffer which makes life
- * less fun than would be ideal.
- */
-
-static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
-{
- struct rx_desc *rd = &(vptr->rd_ring[idx]);
- struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
-
- rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64);
- if (rd_info->skb == NULL)
- return -ENOMEM;
-
- /*
- * Do the gymnastics to get the buffer head for data at
- * 64byte alignment.
- */
- skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->tail & 63);
- rd_info->skb->dev = vptr->dev;
- rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->tail, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
-
- /*
- * Fill in the descriptor to match
- */
-
- *((u32 *) & (rd->rdesc0)) = 0;
- rd->len = cpu_to_le32(vptr->rx_buf_sz);
- rd->inten = 1;
- rd->pa_low = cpu_to_le32(rd_info->skb_dma);
- rd->pa_high = 0;
- return 0;
-}
-
-/**
- * tx_srv - transmit interrupt service
- * @vptr; Velocity
- * @status:
- *
- * Scan the queues looking for transmitted packets that
- * we can complete and clean up. Update any statistics as
- * neccessary/
- */
-
-static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
-{
- struct tx_desc *td;
- int qnum;
- int full = 0;
- int idx;
- int works = 0;
- struct velocity_td_info *tdinfo;
- struct net_device_stats *stats = &vptr->stats;
-
- for (qnum = 0; qnum < vptr->num_txq; qnum++) {
- for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0;
- idx = (idx + 1) % vptr->options.numtx) {
-
- /*
- * Get Tx Descriptor
- */
- td = &(vptr->td_rings[qnum][idx]);
- tdinfo = &(vptr->td_infos[qnum][idx]);
-
- if (td->tdesc0.owner == OWNED_BY_NIC)
- break;
-
- if ((works++ > 15))
- break;
-
- if (td->tdesc0.TSR & TSR0_TERR) {
- stats->tx_errors++;
- stats->tx_dropped++;
- if (td->tdesc0.TSR & TSR0_CDH)
- stats->tx_heartbeat_errors++;
- if (td->tdesc0.TSR & TSR0_CRS)
- stats->tx_carrier_errors++;
- if (td->tdesc0.TSR & TSR0_ABT)
- stats->tx_aborted_errors++;
- if (td->tdesc0.TSR & TSR0_OWC)
- stats->tx_window_errors++;
- } else {
- stats->tx_packets++;
- stats->tx_bytes += tdinfo->skb->len;
- }
- velocity_free_tx_buf(vptr, tdinfo);
- vptr->td_used[qnum]--;
- }
- vptr->td_tail[qnum] = idx;
-
- if (AVAIL_TD(vptr, qnum) < 1) {
- full = 1;
- }
- }
- /*
- * Look to see if we should kick the transmit network
- * layer for more work.
- */
- if (netif_queue_stopped(vptr->dev) && (full == 0)
- && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
- netif_wake_queue(vptr->dev);
- }
- return works;
-}
-
-/**
- * velocity_print_link_status - link status reporting
- * @vptr: velocity to report on
- *
- * Turn the link status of the velocity card into a kernel log
- * description of the new link state, detailing speed and duplex
- * status
- */
-
-static void velocity_print_link_status(struct velocity_info *vptr)
-{
-
- if (vptr->mii_status & VELOCITY_LINK_FAIL) {
- VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
- } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
- VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link autonegation", vptr->dev->name);
-
- if (vptr->mii_status & VELOCITY_SPEED_1000)
- VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
- else if (vptr->mii_status & VELOCITY_SPEED_100)
- VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
- else
- VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
-
- if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
- VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
- else
- VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
- } else {
- VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
- switch (vptr->options.spd_dpx) {
- case SPD_DPX_100_HALF:
- VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
- break;
- case SPD_DPX_100_FULL:
- VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
- break;
- case SPD_DPX_10_HALF:
- VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
- break;
- case SPD_DPX_10_FULL:
- VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
- break;
- default:
- break;
- }
- }
-}
-
-/**
- * velocity_error - handle error from controller
- * @vptr: velocity
- * @status: card status
- *
- * Process an error report from the hardware and attempt to recover
- * the card itself. At the moment we cannot recover from some
- * theoretically impossible errors but this could be fixed using
- * the pci_device_failed logic to bounce the hardware
- *
- */
-
-static void velocity_error(struct velocity_info *vptr, int status)
-{
-
- if (status & ISR_TXSTLI) {
- struct mac_regs * regs = vptr->mac_regs;
-
- printk(KERN_ERR "TD structure errror TDindex=%hx\n", readw(®s->TDIdx[0]));
- BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
- writew(TRDCSR_RUN, ®s->TDCSRClr);
- netif_stop_queue(vptr->dev);
-
- /* FIXME: port over the pci_device_failed code and use it
- here */
- }
-
- if (status & ISR_SRCI) {
- struct mac_regs * regs = vptr->mac_regs;
- int linked;
-
- if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
- vptr->mii_status = check_connection_type(regs);
-
- /*
- * If it is a 3119, disable frame bursting in
- * halfduplex mode and enable it in fullduplex
- * mode
- */
- if (vptr->rev_id < REV_ID_VT3216_A0) {
- if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
- BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
- else
- BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
- }
- /*
- * Only enable CD heart beat counter in 10HD mode
- */
- if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
- BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
- } else {
- BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
- }
- }
- /*
- * Get link status from PHYSR0
- */
- linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
-
- if (linked) {
- vptr->mii_status &= ~VELOCITY_LINK_FAIL;
- } else {
- vptr->mii_status |= VELOCITY_LINK_FAIL;
- }
-
- velocity_print_link_status(vptr);
- enable_flow_control_ability(vptr);
-
- /*
- * Re-enable auto-polling because SRCI will disable
- * auto-polling
- */
-
- enable_mii_autopoll(regs);
-
- if (vptr->mii_status & VELOCITY_LINK_FAIL)
- netif_stop_queue(vptr->dev);
- else
- netif_wake_queue(vptr->dev);
-
- };
- if (status & ISR_MIBFI)
- velocity_update_hw_mibs(vptr);
- if (status & ISR_LSTEI)
- mac_rx_queue_wake(vptr->mac_regs);
-}
-
-/**
- * velocity_free_tx_buf - free transmit buffer
- * @vptr: velocity
- * @tdinfo: buffer
- *
- * Release an transmit buffer. If the buffer was preallocated then
- * recycle it, if not then unmap the buffer.
- */
-
-static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
-{
- struct sk_buff *skb = tdinfo->skb;
- int i;
-
- /*
- * Don't unmap the pre-allocated tx_bufs
- */
- if (tdinfo->skb_dma && (tdinfo->skb_dma[0] != tdinfo->buf_dma)) {
-
- for (i = 0; i < tdinfo->nskb_dma; i++) {
-#ifdef VELOCITY_ZERO_COPY_SUPPORT
- pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], td->tdesc1.len, PCI_DMA_TODEVICE);
-#else
- pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
-#endif
- tdinfo->skb_dma[i] = 0;
- }
- }
- dev_kfree_skb_irq(skb);
- tdinfo->skb = NULL;
-}
-
-/**
- * velocity_open - interface activation callback
- * @dev: network layer device to open
- *
- * Called when the network layer brings the interface up. Returns
- * a negative posix error code on failure, or zero on success.
- *
- * All the ring allocation and set up is done on open for this
- * adapter to minimise memory usage when inactive
- */
-
-static int velocity_open(struct net_device *dev)
-{
- struct velocity_info *vptr = dev->priv;
- int ret;
-
- vptr->rx_buf_sz = (dev->mtu <= 1504 ? PKT_BUF_SZ : dev->mtu + 32);
-
- ret = velocity_init_rings(vptr);
- if (ret < 0)
- goto out;
-
- ret = velocity_init_rd_ring(vptr);
- if (ret < 0)
- goto err_free_desc_rings;
-
- ret = velocity_init_td_ring(vptr);
- if (ret < 0)
- goto err_free_rd_ring;
-
- /* Ensure chip is running */
- pci_set_power_state(vptr->pdev, 0);
-
- velocity_init_registers(vptr, VELOCITY_INIT_COLD);
-
- ret = request_irq(vptr->pdev->irq, &velocity_intr, SA_SHIRQ,
- dev->name, dev);
- if (ret < 0) {
- /* Power down the chip */
- pci_set_power_state(vptr->pdev, 3);
- goto err_free_td_ring;
- }
-
- mac_enable_int(vptr->mac_regs);
- netif_start_queue(dev);
- vptr->flags |= VELOCITY_FLAGS_OPENED;
-out:
- return ret;
-
-err_free_td_ring:
- velocity_free_td_ring(vptr);
-err_free_rd_ring:
- velocity_free_rd_ring(vptr);
-err_free_desc_rings:
- velocity_free_rings(vptr);
- goto out;
-}
-
-/**
- * velocity_change_mtu - MTU change callback
- * @dev: network device
- * @new_mtu: desired MTU
- *
- * Handle requests from the networking layer for MTU change on
- * this interface. It gets called on a change by the network layer.
- * Return zero for success or negative posix error code.
- */
-
-static int velocity_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct velocity_info *vptr = dev->priv;
- unsigned long flags;
- int oldmtu = dev->mtu;
- int ret = 0;
-
- if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
- VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
- vptr->dev->name);
- return -EINVAL;
- }
-
- if (new_mtu != oldmtu) {
- spin_lock_irqsave(&vptr->lock, flags);
-
- netif_stop_queue(dev);
- velocity_shutdown(vptr);
-
- velocity_free_td_ring(vptr);
- velocity_free_rd_ring(vptr);
-
- dev->mtu = new_mtu;
- if (new_mtu > 8192)
- vptr->rx_buf_sz = 9 * 1024;
- else if (new_mtu > 4096)
- vptr->rx_buf_sz = 8192;
- else
- vptr->rx_buf_sz = 4 * 1024;
-
- ret = velocity_init_rd_ring(vptr);
- if (ret < 0)
- goto out_unlock;
-
- ret = velocity_init_td_ring(vptr);
- if (ret < 0)
- goto out_unlock;
-
- velocity_init_registers(vptr, VELOCITY_INIT_COLD);
-
- mac_enable_int(vptr->mac_regs);
- netif_start_queue(dev);
-out_unlock:
- spin_unlock_irqrestore(&vptr->lock, flags);
- }
-
- return ret;
-}
-
-/**
- * velocity_shutdown - shut down the chip
- * @vptr: velocity to deactivate
- *
- * Shuts down the internal operations of the velocity and
- * disables interrupts, autopolling, transmit and receive
- */
-
-static void velocity_shutdown(struct velocity_info *vptr)
-{
- struct mac_regs * regs = vptr->mac_regs;
- mac_disable_int(regs);
- writel(CR0_STOP, ®s->CR0Set);
- writew(0xFFFF, ®s->TDCSRClr);
- writeb(0xFF, ®s->RDCSRClr);
- safe_disable_mii_autopoll(regs);
- mac_clear_isr(regs);
-}
-
-/**
- * velocity_close - close adapter callback
- * @dev: network device
- *
- * Callback from the network layer when the velocity is being
- * deactivated by the network layer
- */
-
-static int velocity_close(struct net_device *dev)
-{
- struct velocity_info *vptr = dev->priv;
-
- netif_stop_queue(dev);
- velocity_shutdown(vptr);
-
- if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
- velocity_get_ip(vptr);
- if (dev->irq != 0)
- free_irq(dev->irq, dev);
-
- /* Power down the chip */
- pci_set_power_state(vptr->pdev, 3);
-
- /* Free the resources */
- velocity_free_td_ring(vptr);
- velocity_free_rd_ring(vptr);
- velocity_free_rings(vptr);
-
- vptr->flags &= (~VELOCITY_FLAGS_OPENED);
- return 0;
-}
-
-/**
- * velocity_xmit - transmit packet callback
- * @skb: buffer to transmit
- * @dev: network device
- *
- * Called by the networ layer to request a packet is queued to
- * the velocity. Returns zero on success.
- */
-
-static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct velocity_info *vptr = dev->priv;
- int qnum = 0;
- struct tx_desc *td_ptr;
- struct velocity_td_info *tdinfo;
- unsigned long flags;
- int index;
-
- int pktlen = skb->len;
-
- spin_lock_irqsave(&vptr->lock, flags);
-
- index = vptr->td_curr[qnum];
- td_ptr = &(vptr->td_rings[qnum][index]);
- tdinfo = &(vptr->td_infos[qnum][index]);
-
- td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;
- td_ptr->tdesc1.TCR = TCR0_TIC;
- td_ptr->td_buf[0].queue = 0;
-
- /*
- * Pad short frames.
- */
- if (pktlen < ETH_ZLEN) {
- /* Cannot occur until ZC support */
- if(skb_linearize(skb, GFP_ATOMIC))
- return 0;
- pktlen = ETH_ZLEN;
- memcpy(tdinfo->buf, skb->data, skb->len);
- memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
- tdinfo->skb = skb;
- tdinfo->skb_dma[0] = tdinfo->buf_dma;
- td_ptr->tdesc0.pktsize = pktlen;
- td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
- td_ptr->td_buf[0].pa_high = 0;
- td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
- tdinfo->nskb_dma = 1;
- td_ptr->tdesc1.CMDZ = 2;
- } else
-#ifdef VELOCITY_ZERO_COPY_SUPPORT
- if (skb_shinfo(skb)->nr_frags > 0) {
- int nfrags = skb_shinfo(skb)->nr_frags;
- tdinfo->skb = skb;
- if (nfrags > 6) {
- skb_linearize(skb, GFP_ATOMIC);
- memcpy(tdinfo->buf, skb->data, skb->len);
- tdinfo->skb_dma[0] = tdinfo->buf_dma;
- td_ptr->tdesc0.pktsize =
- td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
- td_ptr->td_buf[0].pa_high = 0;
- td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
- tdinfo->nskb_dma = 1;
- td_ptr->tdesc1.CMDZ = 2;
- } else {
- int i = 0;
- tdinfo->nskb_dma = 0;
- tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data, skb->len - skb->data_len, PCI_DMA_TODEVICE);
-
- td_ptr->tdesc0.pktsize = pktlen;
-
- /* FIXME: support 48bit DMA later */
- td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
- td_ptr->td_buf[i].pa_high = 0;
- td_ptr->td_buf[i].bufsize = skb->len->skb->data_len;
-
- for (i = 0; i < nfrags; i++) {
- skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
- void *addr = ((void *) page_address(frag->page + frag->page_offset));
-
- tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
-
- td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
- td_ptr->td_buf[i + 1].pa_high = 0;
- td_ptr->td_buf[i + 1].bufsize = frag->size;
- }
- tdinfo->nskb_dma = i - 1;
- td_ptr->tdesc1.CMDZ = i;
- }
-
- } else
-#endif
- {
- /*
- * Map the linear network buffer into PCI space and
- * add it to the transmit ring.
- */
- tdinfo->skb = skb;
- tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
- td_ptr->tdesc0.pktsize = pktlen;
- td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
- td_ptr->td_buf[0].pa_high = 0;
- td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
- tdinfo->nskb_dma = 1;
- td_ptr->tdesc1.CMDZ = 2;
- }
-
- if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
- td_ptr->tdesc1.pqinf.VID = (vptr->options.vid & 0xfff);
- td_ptr->tdesc1.pqinf.priority = 0;
- td_ptr->tdesc1.pqinf.CFI = 0;
- td_ptr->tdesc1.TCR |= TCR0_VETAG;
- }
-
- /*
- * Handle hardware checksum
- */
- if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
- && (skb->ip_summed == CHECKSUM_HW)) {
- struct iphdr *ip = skb->nh.iph;
- if (ip->protocol == IPPROTO_TCP)
- td_ptr->tdesc1.TCR |= TCR0_TCPCK;
- else if (ip->protocol == IPPROTO_UDP)
- td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
- td_ptr->tdesc1.TCR |= TCR0_IPCK;
- }
- {
-
- int prev = index - 1;
-
- if (prev < 0)
- prev = vptr->options.numtx - 1;
- td_ptr->tdesc0.owner = OWNED_BY_NIC;
- vptr->td_used[qnum]++;
- vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
-
- if (AVAIL_TD(vptr, qnum) < 1)
- netif_stop_queue(dev);
-
- td_ptr = &(vptr->td_rings[qnum][prev]);
- td_ptr->td_buf[0].queue = 1;
- mac_tx_queue_wake(vptr->mac_regs, qnum);
- }
- dev->trans_start = jiffies;
- spin_unlock_irqrestore(&vptr->lock, flags);
- return 0;
-}
-
-/**
- * velocity_intr - interrupt callback
- * @irq: interrupt number
- * @dev_instance: interrupting device
- * @pt_regs: CPU register state at interrupt
- *
- * Called whenever an interrupt is generated by the velocity
- * adapter IRQ line. We may not be the source of the interrupt
- * and need to identify initially if we are, and if not exit as
- * efficiently as possible.
- */
-
-static int velocity_intr(int irq, void *dev_instance, struct pt_regs *regs)
-{
- struct net_device *dev = dev_instance;
- struct velocity_info *vptr = dev->priv;
- u32 isr_status;
- int max_count = 0;
-
-
- spin_lock(&vptr->lock);
- isr_status = mac_read_isr(vptr->mac_regs);
-
- /* Not us ? */
- if (isr_status == 0) {
- spin_unlock(&vptr->lock);
- return IRQ_NONE;
- }
-
- mac_disable_int(vptr->mac_regs);
-
- /*
- * Keep processing the ISR until we have completed
- * processing and the isr_status becomes zero
- */
-
- while (isr_status != 0) {
- mac_write_isr(vptr->mac_regs, isr_status);
- if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
- velocity_error(vptr, isr_status);
- if (isr_status & (ISR_PRXI | ISR_PPRXI))
- max_count += velocity_rx_srv(vptr, isr_status);
- if (isr_status & (ISR_PTXI | ISR_PPTXI))
- max_count += velocity_tx_srv(vptr, isr_status);
- isr_status = mac_read_isr(vptr->mac_regs);
- if (max_count > vptr->options.int_works)
- {
- printk(KERN_WARNING "%s: excessive work at interrupt.\n",
- dev->name);
- max_count = 0;
- }
- }
- spin_unlock(&vptr->lock);
- mac_enable_int(vptr->mac_regs);
- return IRQ_HANDLED;
-
-}
-
-
-/**
- * ether_crc - ethernet CRC function
- *
- * Compute an ethernet CRC hash of the data block provided. This
- * is not performance optimised but is not needed in performance
- * critical code paths.
- *
- * FIXME: could we use shared code here ?
- */
-
-static inline u32 ether_crc(int length, unsigned char *data)
-{
- static unsigned const ethernet_polynomial = 0x04c11db7U;
-
- int crc = -1;
-
- while (--length >= 0) {
- unsigned char current_octet = *data++;
- int bit;
- for (bit = 0; bit < 8; bit++, current_octet >>= 1) {
- crc = (crc << 1) ^ ((crc < 0) ^ (current_octet & 1) ? ethernet_polynomial : 0);
- }
- }
- return crc;
-}
-
-/**
- * velocity_set_multi - filter list change callback
- * @dev: network device
- *
- * Called by the network layer when the filter lists need to change
- * for a velocity adapter. Reload the CAMs with the new address
- * filter ruleset.
- */
-
-static void velocity_set_multi(struct net_device *dev)
-{
- struct velocity_info *vptr = dev->priv;
- struct mac_regs * regs = vptr->mac_regs;
- u8 rx_mode;
- int i;
- struct dev_mc_list *mclist;
-
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
- /* Unconditionally log net taps. */
- printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
- writel(0xffffffff, ®s->MARCAM[0]);
- writel(0xffffffff, ®s->MARCAM[4]);
- rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
- } else if ((dev->mc_count > vptr->multicast_limit)
- || (dev->flags & IFF_ALLMULTI)) {
- writel(0xffffffff, ®s->MARCAM[0]);
- writel(0xffffffff, ®s->MARCAM[4]);
- rx_mode = (RCR_AM | RCR_AB);
- } else {
- int offset = MCAM_SIZE - vptr->multicast_limit;
- mac_get_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
-
- for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
- mac_set_cam(regs, i + offset, mclist->dmi_addr, VELOCITY_MULTICAST_CAM);
- vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
- }
-
- mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
- rx_mode = (RCR_AM | RCR_AB);
- }
- if (dev->mtu > 1500)
- rx_mode |= RCR_AL;
-
- BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
-
-}
-
-/**
- * velocity_get_status - statistics callback
- * @dev: network device
- *
- * Callback from the network layer to allow driver statistics
- * to be resynchronized with hardware collected state. In the
- * case of the velocity we need to pull the MIB counters from
- * the hardware into the counters before letting the network
- * layer display them.
- */
-
-static struct net_device_stats *velocity_get_stats(struct net_device *dev)
-{
- struct velocity_info *vptr = dev->priv;
-
- /* If the hardware is down, don't touch MII */
- if(!netif_running(dev))
- return &vptr->stats;
-
- spin_lock_irq(&vptr->lock);
- velocity_update_hw_mibs(vptr);
- spin_unlock_irq(&vptr->lock);
-
- vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
- vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
- vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
-
-// unsigned long rx_dropped; /* no space in linux buffers */
- vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
- /* detailed rx_errors: */
-// unsigned long rx_length_errors;
-// unsigned long rx_over_errors; /* receiver ring buff overflow */
- vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
-// unsigned long rx_frame_errors; /* recv'd frame alignment error */
-// unsigned long rx_fifo_errors; /* recv'r fifo overrun */
-// unsigned long rx_missed_errors; /* receiver missed packet */
-
- /* detailed tx_errors */
-// unsigned long tx_fifo_errors;
-
- return &vptr->stats;
-}
-
-
-/**
- * velocity_ioctl - ioctl entry point
- * @dev: network device
- * @rq: interface request ioctl
- * @cmd: command code
- *
- * Called when the user issues an ioctl request to the network
- * device in question. The velocity interface supports MII.
- */
-
-static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct velocity_info *vptr = dev->priv;
- int ret;
-
- /* If we are asked for information and the device is power
- saving then we need to bring the device back up to talk to it */
-
- if(!netif_running(dev))
- pci_set_power_state(vptr->pdev, 0);
-
- switch (cmd) {
- case SIOCGMIIPHY: /* Get address of MII PHY in use. */
- case SIOCGMIIREG: /* Read MII PHY register. */
- case SIOCSMIIREG: /* Write to MII PHY register. */
- ret = velocity_mii_ioctl(dev, rq, cmd);
- break;
-
- default:
- ret = -EOPNOTSUPP;
- }
- if(!netif_running(dev))
- pci_set_power_state(vptr->pdev, 3);
-
-
- return ret;
-}
-
-/*
- * Definition for our device driver. The PCI layer interface
- * uses this to handle all our card discover and plugging
- */
-
-static struct pci_driver velocity_driver = {
- name:VELOCITY_NAME,
- id_table:velocity_id_table,
- probe:velocity_found1,
- remove:velocity_remove1,
-#ifdef CONFIG_PM
- suspend:velocity_suspend,
- resume:velocity_resume,
-#endif
-};
-
-/**
- * velocity_init_module - load time function
- *
- * Called when the velocity module is loaded. The PCI driver
- * is registered with the PCI layer, and in turn will call
- * the probe functions for each velocity adapter installed
- * in the system.
- */
-
-static int __init velocity_init_module(void)
-{
- int ret;
- ret = pci_module_init(&velocity_driver);
-
-#ifdef CONFIG_PM
- register_inetaddr_notifier(&velocity_inetaddr_notifier);
-#endif
- return ret;
-}
-
-/**
- * velocity_cleanup - module unload
- *
- * When the velocity hardware is unloaded this function is called.
- * It will clean up the notifiers and the unregister the PCI
- * driver interface for this hardware. This in turn cleans up
- * all discovered interfaces before returning from the function
- */
-
-static void __exit velocity_cleanup_module(void)
-{
-#ifdef CONFIG_PM
- unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
-#endif
- pci_unregister_driver(&velocity_driver);
-}
-
-module_init(velocity_init_module);
-module_exit(velocity_cleanup_module);
-
-
-/*
- * MII access , media link mode setting functions
- */
-
-
-/**
- * mii_init - set up MII
- * @vptr: velocity adapter
- * @mii_status: links tatus
- *
- * Set up the PHY for the current link state.
- */
-
-static void mii_init(struct velocity_info *vptr, u32 mii_status)
-{
- u16 BMCR;
-
- switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
- case PHYID_CICADA_CS8201:
- /*
- * Reset to hardware default
- */
- MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
- /*
- * Turn on ECHODIS bit in NWay-forced full mode and turn it
- * off it in NWay-forced half mode for NWay-forced v.s.
- * legacy-forced issue.
- */
- if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
- MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
- else
- MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
- /*
- * Turn on Link/Activity LED enable bit for CIS8201
- */
- MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
- break;
- case PHYID_VT3216_32BIT:
- case PHYID_VT3216_64BIT:
- /*
- * Reset to hardware default
- */
- MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
- /*
- * Turn on ECHODIS bit in NWay-forced full mode and turn it
- * off it in NWay-forced half mode for NWay-forced v.s.
- * legacy-forced issue
- */
- if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
- MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
- else
- MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
- break;
-
- case PHYID_MARVELL_1000:
- case PHYID_MARVELL_1000S:
- /*
- * Assert CRS on Transmit
- */
- MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
- /*
- * Reset to hardware default
- */
- MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
- break;
- default:
- ;
- }
- velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
- if (BMCR & BMCR_ISO) {
- BMCR &= ~BMCR_ISO;
- velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
- }
-}
-
-/**
- * safe_disable_mii_autopoll - autopoll off
- * @regs: velocity registers
- *
- * Turn off the autopoll and wait for it to disable on the chip
- */
-
-static void safe_disable_mii_autopoll(struct mac_regs * regs)
-{
- u16 ww;
-
- /* turn off MAUTO */
- writeb(0, ®s->MIICR);
- for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
- udelay(1);
- if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
- break;
- }
-}
-
-/**
- * enable_mii_autopoll - turn on autopolling
- * @regs: velocity registers
- *
- * Enable the MII link status autopoll feature on the Velocity
- * hardware. Wait for it to enable.
- */
-
-static void enable_mii_autopoll(struct mac_regs * regs)
-{
- int ii;
-
- writeb(0, &(regs->MIICR));
- writeb(MIIADR_SWMPL, ®s->MIIADR);
-
- for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
- udelay(1);
- if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
- break;
- }
-
- writeb(MIICR_MAUTO, ®s->MIICR);
-
- for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
- udelay(1);
- if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
- break;
- }
-
-}
-
-/**
- * velocity_mii_read - read MII data
- * @regs: velocity registers
- * @index: MII register index
- * @data: buffer for received data
- *
- * Perform a single read of an MII 16bit register. Returns zero
- * on success or -ETIMEDOUT if the PHY did not respond.
- */
-
-static int velocity_mii_read(struct mac_regs * regs, u8 index, u16 *data)
-{
- u16 ww;
-
- /*
- * Disable MIICR_MAUTO, so that mii addr can be set normally
- */
- safe_disable_mii_autopoll(regs);
-
- writeb(index, ®s->MIIADR);
-
- BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
-
- for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
- if (!(readb(®s->MIICR) & MIICR_RCMD))
- break;
- }
-
- *data = readw(®s->MIIDATA);
-
- enable_mii_autopoll(regs);
- if (ww == W_MAX_TIMEOUT)
- return -ETIMEDOUT;
- return 0;
-}
-
-/**
- * velocity_mii_write - write MII data
- * @regs: velocity registers
- * @index: MII register index
- * @data: 16bit data for the MII register
- *
- * Perform a single write to an MII 16bit register. Returns zero
- * on success or -ETIMEDOUT if the PHY did not respond.
- */
-
-static int velocity_mii_write(struct mac_regs * regs, u8 mii_addr, u16 data)
-{
- u16 ww;
-
- /*
- * Disable MIICR_MAUTO, so that mii addr can be set normally
- */
- safe_disable_mii_autopoll(regs);
-
- /* MII reg offset */
- writeb(mii_addr, ®s->MIIADR);
- /* set MII data */
- writew(data, ®s->MIIDATA);
-
- /* turn on MIICR_WCMD */
- BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
-
- /* W_MAX_TIMEOUT is the timeout period */
- for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
- udelay(5);
- if (!(readb(®s->MIICR) & MIICR_WCMD))
- break;
- }
- enable_mii_autopoll(regs);
-
- if (ww == W_MAX_TIMEOUT)
- return -ETIMEDOUT;
- return 0;
-}
-
-/**
- * velocity_get_opt_media_mode - get media selection
- * @vptr: velocity adapter
- *
- * Get the media mode stored in EEPROM or module options and load
- * mii_status accordingly. The requested link state information
- * is also returned.
- */
-
-static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
-{
- u32 status = 0;
-
- switch (vptr->options.spd_dpx) {
- case SPD_DPX_AUTO:
- status = VELOCITY_AUTONEG_ENABLE;
- break;
- case SPD_DPX_100_FULL:
- status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
- break;
- case SPD_DPX_10_FULL:
- status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
- break;
- case SPD_DPX_100_HALF:
- status = VELOCITY_SPEED_100;
- break;
- case SPD_DPX_10_HALF:
- status = VELOCITY_SPEED_10;
- break;
- }
- vptr->mii_status = status;
- return status;
-}
-
-/**
- * mii_set_auto_on - autonegotiate on
- * @vptr: velocity
- *
- * Enable autonegotation on this interface
- */
-
-static void mii_set_auto_on(struct velocity_info *vptr)
-{
- if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
- MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
- else
- MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
-}
-
-
-/*
-static void mii_set_auto_off(struct velocity_info * vptr)
-{
- MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
-}
-*/
-
-/**
- * set_mii_flow_control - flow control setup
- * @vptr: velocity interface
- *
- * Set up the flow control on this interface according to
- * the supplied user/eeprom options.
- */
-
-static void set_mii_flow_control(struct velocity_info *vptr)
-{
- /*Enable or Disable PAUSE in ANAR */
- switch (vptr->options.flow_cntl) {
- case FLOW_CNTL_TX:
- MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
- MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
- break;
-
- case FLOW_CNTL_RX:
- MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
- MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
- break;
-
- case FLOW_CNTL_TX_RX:
- MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
- MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
- break;
-
- case FLOW_CNTL_DISABLE:
- MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
- MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
- break;
- default:
- break;
- }
-}
-
-/**
- * velocity_set_media_mode - set media mode
- * @mii_status: old MII link state
- *
- * Check the media link state and configure the flow control
- * PHY and also velocity hardware setup accordingly. In particular
- * we need to set up CD polling and frame bursting.
- */
-
-static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
-{
- u32 curr_status;
- struct mac_regs * regs = vptr->mac_regs;
-
- vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
- curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
-
- /* Set mii link status */
- set_mii_flow_control(vptr);
-
- /*
- Check if new status is consisent with current status
- if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
- || (mii_status==curr_status)) {
- vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
- vptr->mii_status=check_connection_type(vptr->mac_regs);
- VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
- return 0;
- }
- */
-
- if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
- MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
- }
-
- /*
- * If connection type is AUTO
- */
- if (mii_status & VELOCITY_AUTONEG_ENABLE) {
- VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
- /* clear force MAC mode bit */
- BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
- /* set duplex mode of MAC according to duplex mode of MII */
- MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
- MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
- MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
-
- /* enable AUTO-NEGO mode */
- mii_set_auto_on(vptr);
- } else {
- u16 ANAR;
- u8 CHIPGCR;
-
- /*
- * 1. if it's 3119, disable frame bursting in halfduplex mode
- * and enable it in fullduplex mode
- * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
- * 3. only enable CD heart beat counter in 10HD mode
- */
-
- /* set force MAC mode bit */
- BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
-
- CHIPGCR = readb(®s->CHIPGCR);
- CHIPGCR &= ~CHIPGCR_FCGMII;
-
- if (mii_status & VELOCITY_DUPLEX_FULL) {
- CHIPGCR |= CHIPGCR_FCFDX;
- writeb(CHIPGCR, ®s->CHIPGCR);
- VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
- if (vptr->rev_id < REV_ID_VT3216_A0)
- BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
- } else {
- CHIPGCR &= ~CHIPGCR_FCFDX;
- VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
- writeb(CHIPGCR, ®s->CHIPGCR);
- if (vptr->rev_id < REV_ID_VT3216_A0)
- BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
- }
-
- MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
-
- if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
- BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
- } else {
- BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
- }
- /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
- velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
- ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
- if (mii_status & VELOCITY_SPEED_100) {
- if (mii_status & VELOCITY_DUPLEX_FULL)
- ANAR |= ANAR_TXFD;
- else
- ANAR |= ANAR_TX;
- } else {
- if (mii_status & VELOCITY_DUPLEX_FULL)
- ANAR |= ANAR_10FD;
- else
- ANAR |= ANAR_10;
- }
- velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
- /* enable AUTO-NEGO mode */
- mii_set_auto_on(vptr);
- /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
- }
- /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
- /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
- return VELOCITY_LINK_CHANGE;
-}
-
-/**
- * mii_check_media_mode - check media state
- * @regs: velocity registers
- *
- * Check the current MII status and determine the link status
- * accordingly
- */
-
-static u32 mii_check_media_mode(struct mac_regs * regs)
-{
- u32 status = 0;
- u16 ANAR;
-
- if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
- status |= VELOCITY_LINK_FAIL;
-
- if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
- status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
- else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
- status |= (VELOCITY_SPEED_1000);
- else {
- velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
- if (ANAR & ANAR_TXFD)
- status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
- else if (ANAR & ANAR_TX)
- status |= VELOCITY_SPEED_100;
- else if (ANAR & ANAR_10FD)
- status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
- else
- status |= (VELOCITY_SPEED_10);
- }
-
- if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
- velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
- if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
- == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
- if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
- status |= VELOCITY_AUTONEG_ENABLE;
- }
- }
-
- return status;
-}
-
-static u32 check_connection_type(struct mac_regs * regs)
-{
- u32 status = 0;
- u8 PHYSR0;
- u16 ANAR;
- PHYSR0 = readb(®s->PHYSR0);
-
- /*
- if (!(PHYSR0 & PHYSR0_LINKGD))
- status|=VELOCITY_LINK_FAIL;
- */
-
- if (PHYSR0 & PHYSR0_FDPX)
- status |= VELOCITY_DUPLEX_FULL;
-
- if (PHYSR0 & PHYSR0_SPDG)
- status |= VELOCITY_SPEED_1000;
- if (PHYSR0 & PHYSR0_SPD10)
- status |= VELOCITY_SPEED_10;
- else
- status |= VELOCITY_SPEED_100;
-
- if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
- velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
- if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
- == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
- if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
- status |= VELOCITY_AUTONEG_ENABLE;
- }
- }
-
- return status;
-}
-
-/**
- * enable_flow_control_ability - flow control
- * @vptr: veloity to configure
- *
- * Set up flow control according to the flow control options
- * determined by the eeprom/configuration.
- */
-
-static void enable_flow_control_ability(struct velocity_info *vptr)
-{
-
- struct mac_regs * regs = vptr->mac_regs;
-
- switch (vptr->options.flow_cntl) {
-
- case FLOW_CNTL_DEFAULT:
- if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
- writel(CR0_FDXRFCEN, ®s->CR0Set);
- else
- writel(CR0_FDXRFCEN, ®s->CR0Clr);
-
- if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
- writel(CR0_FDXTFCEN, ®s->CR0Set);
- else
- writel(CR0_FDXTFCEN, ®s->CR0Clr);
- break;
-
- case FLOW_CNTL_TX:
- writel(CR0_FDXTFCEN, ®s->CR0Set);
- writel(CR0_FDXRFCEN, ®s->CR0Clr);
- break;
-
- case FLOW_CNTL_RX:
- writel(CR0_FDXRFCEN, ®s->CR0Set);
- writel(CR0_FDXTFCEN, ®s->CR0Clr);
- break;
-
- case FLOW_CNTL_TX_RX:
- writel(CR0_FDXTFCEN, ®s->CR0Set);
- writel(CR0_FDXRFCEN, ®s->CR0Set);
- break;
-
- case FLOW_CNTL_DISABLE:
- writel(CR0_FDXRFCEN, ®s->CR0Clr);
- writel(CR0_FDXTFCEN, ®s->CR0Clr);
- break;
-
- default:
- break;
- }
-
-}
-
-
-/**
- * velocity_ethtool_up - pre hook for ethtool
- * @dev: network device
- *
- * Called before an ethtool operation. We need to make sure the
- * chip is out of D3 state before we poke at it.
- */
-
-static int velocity_ethtool_up(struct net_device *dev)
-{
- struct velocity_info *vptr = dev->priv;
- if(!netif_running(dev))
- pci_set_power_state(vptr->pdev, 0);
- return 0;
-}
-
-/**
- * velocity_ethtool_down - post hook for ethtool
- * @dev: network device
- *
- * Called after an ethtool operation. Restore the chip back to D3
- * state if it isn't running.
- */
-
-static void velocity_ethtool_down(struct net_device *dev)
-{
- struct velocity_info *vptr = dev->priv;
- if(!netif_running(dev))
- pci_set_power_state(vptr->pdev, 3);
-}
-
-static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct velocity_info *vptr = dev->priv;
- struct mac_regs * regs = vptr->mac_regs;
- u32 status;
- status = check_connection_type(vptr->mac_regs);
-
- cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
- if (status & VELOCITY_SPEED_100)
- cmd->speed = SPEED_100;
- else
- cmd->speed = SPEED_10;
- cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
- cmd->port = PORT_TP;
- cmd->transceiver = XCVR_INTERNAL;
- cmd->phy_address = readb(®s->MIIADR) & 0x1F;
-
- if (status & VELOCITY_DUPLEX_FULL)
- cmd->duplex = DUPLEX_FULL;
- else
- cmd->duplex = DUPLEX_HALF;
-
- return 0;
-}
-
-static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct velocity_info *vptr = dev->priv;
- u32 curr_status;
- u32 new_status = 0;
- int ret = 0;
-
- curr_status = check_connection_type(vptr->mac_regs);
- curr_status &= (~VELOCITY_LINK_FAIL);
-
- new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
- new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
- new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
- new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
-
- if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
- ret = -EINVAL;
- else
- velocity_set_media_mode(vptr, new_status);
-
- return ret;
-}
-
-static u32 velocity_get_link(struct net_device *dev)
-{
- struct velocity_info *vptr = dev->priv;
- struct mac_regs * regs = vptr->mac_regs;
- return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 0 : 1;
-}
-
-static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- struct velocity_info *vptr = dev->priv;
- strcpy(info->driver, VELOCITY_NAME);
- strcpy(info->version, VELOCITY_VERSION);
- strcpy(info->bus_info, vptr->pdev->slot_name);
-}
-
-static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct velocity_info *vptr = dev->priv;
- wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
- wol->wolopts |= WAKE_MAGIC;
- /*
- if (vptr->wol_opts & VELOCITY_WOL_PHY)
- wol.wolopts|=WAKE_PHY;
- */
- if (vptr->wol_opts & VELOCITY_WOL_UCAST)
- wol->wolopts |= WAKE_UCAST;
- if (vptr->wol_opts & VELOCITY_WOL_ARP)
- wol->wolopts |= WAKE_ARP;
- memcpy(&wol->sopass, vptr->wol_passwd, 6);
-}
-
-static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct velocity_info *vptr = dev->priv;
-
- if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
- return -EFAULT;
- vptr->wol_opts = VELOCITY_WOL_MAGIC;
-
- /*
- if (wol.wolopts & WAKE_PHY) {
- vptr->wol_opts|=VELOCITY_WOL_PHY;
- vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
- }
- */
-
- if (wol->wolopts & WAKE_MAGIC) {
- vptr->wol_opts |= VELOCITY_WOL_MAGIC;
- vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
- }
- if (wol->wolopts & WAKE_UCAST) {
- vptr->wol_opts |= VELOCITY_WOL_UCAST;
- vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
- }
- if (wol->wolopts & WAKE_ARP) {
- vptr->wol_opts |= VELOCITY_WOL_ARP;
- vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
- }
- memcpy(vptr->wol_passwd, wol->sopass, 6);
- return 0;
-}
-
-static u32 velocity_get_msglevel(struct net_device *dev)
-{
- return msglevel;
-}
-
-static void velocity_set_msglevel(struct net_device *dev, u32 value)
-{
- msglevel = value;
-}
-
-static struct ethtool_ops velocity_ethtool_ops = {
- .get_settings = velocity_get_settings,
- .set_settings = velocity_set_settings,
- .get_drvinfo = velocity_get_drvinfo,
- .get_wol = velocity_ethtool_get_wol,
- .set_wol = velocity_ethtool_set_wol,
- .get_msglevel = velocity_get_msglevel,
- .set_msglevel = velocity_set_msglevel,
- .get_link = velocity_get_link,
- .begin = velocity_ethtool_up,
- .complete = velocity_ethtool_down
-};
-
-/**
- * velocity_mii_ioctl - MII ioctl handler
- * @dev: network device
- * @ifr: the ifreq block for the ioctl
- * @cmd: the command
- *
- * Process MII requests made via ioctl from the network layer. These
- * are used by tools like kudzu to interrogate the link state of the
- * hardware
- */
-
-static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- struct velocity_info *vptr = dev->priv;
- struct mac_regs * regs = vptr->mac_regs;
- unsigned long flags;
- struct mii_ioctl_data *miidata = (struct mii_ioctl_data *) &(ifr->ifr_data);
- int err;
-
- switch (cmd) {
- case SIOCGMIIPHY:
- miidata->phy_id = readb(®s->MIIADR) & 0x1f;
- break;
- case SIOCGMIIREG:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
- return -ETIMEDOUT;
- break;
- case SIOCSMIIREG:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- spin_lock_irqsave(&vptr->lock, flags);
- err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
- spin_unlock_irqrestore(&vptr->lock, flags);
- check_connection_type(vptr->mac_regs);
- if(err)
- return err;
- break;
- default:
- return -EOPNOTSUPP;
- }
- return 0;
-}
-
-#ifdef CONFIG_PM
-
-/**
- * velocity_save_context - save registers
- * @vptr: velocity
- * @context: buffer for stored context
- *
- * Retrieve the current configuration from the velocity hardware
- * and stash it in the context structure, for use by the context
- * restore functions. This allows us to save things we need across
- * power down states
- */
-
-static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
-{
- struct mac_regs * regs = vptr->mac_regs;
- u16 i;
- u8 *ptr = (u8 *)regs;
-
- for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
- *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
-
- for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
- *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
-
- for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
- *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
-
-}
-
-/**
- * velocity_restore_context - restore registers
- * @vptr: velocity
- * @context: buffer for stored context
- *
- * Reload the register configuration from the velocity context
- * created by velocity_save_context.
- */
-
-static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
-{
- struct mac_regs * regs = vptr->mac_regs;
- int i;
- u8 *ptr = (u8 *)regs;
-
- for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
- writel(*((u32 *) (context->mac_reg + i)), ptr + i);
- }
-
- /* Just skip cr0 */
- for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
- /* Clear */
- writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
- /* Set */
- writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
- }
-
- for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
- writel(*((u32 *) (context->mac_reg + i)), ptr + i);
- }
-
- for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
- writel(*((u32 *) (context->mac_reg + i)), ptr + i);
- }
-
- for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
- writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
- }
-
-}
-
-static int velocity_suspend(struct pci_dev *pdev, u32 state)
-{
- struct velocity_info *vptr = pci_get_drvdata(pdev);
- unsigned long flags;
-
- if(!netif_running(vptr->dev))
- return 0;
-
- netif_device_detach(vptr->dev);
-
- spin_lock_irqsave(&vptr->lock, flags);
- pci_save_state(pdev, vptr->pci_state);
-#ifdef ETHTOOL_GWOL
- if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
- velocity_get_ip(vptr);
- velocity_save_context(vptr, &vptr->context);
- velocity_shutdown(vptr);
- velocity_set_wol(vptr);
- pci_enable_wake(pdev, 3, 1);
- pci_set_power_state(pdev, 3);
- } else {
- velocity_save_context(vptr, &vptr->context);
- velocity_shutdown(vptr);
- pci_disable_device(pdev);
- pci_set_power_state(pdev, state);
- }
-#else
- pci_set_power_state(pdev, state);
-#endif
- spin_unlock_irqrestore(&vptr->lock, flags);
- return 0;
-}
-
-static int velocity_resume(struct pci_dev *pdev)
-{
- struct velocity_info *vptr = pci_get_drvdata(pdev);
- unsigned long flags;
- int i;
-
- if(!netif_running(vptr->dev))
- return 0;
-
- pci_set_power_state(pdev, 0);
- pci_enable_wake(pdev, 0, 0);
- pci_restore_state(pdev, vptr->pci_state);
-
- mac_wol_reset(vptr->mac_regs);
-
- spin_lock_irqsave(&vptr->lock, flags);
- velocity_restore_context(vptr, &vptr->context);
- velocity_init_registers(vptr, VELOCITY_INIT_WOL);
- mac_disable_int(vptr->mac_regs);
-
- velocity_tx_srv(vptr, 0);
-
- for (i = 0; i < vptr->num_txq; i++) {
- if (vptr->td_used[i]) {
- mac_tx_queue_wake(vptr->mac_regs, i);
- }
- }
-
- mac_enable_int(vptr->mac_regs);
- spin_unlock_irqrestore(&vptr->lock, flags);
- netif_device_attach(vptr->dev);
-
- return 0;
-}
-
-static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
-{
- struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
- struct net_device *dev;
- struct velocity_info *vptr;
-
- if (ifa) {
- dev = ifa->ifa_dev->dev;
- vptr = dev->priv;
- velocity_get_ip(vptr);
- }
- return NOTIFY_DONE;
-}
-#endif
-
-/*
- * Purpose: Functions to set WOL.
- */
-
-const static unsigned short crc16_tab[256] = {
- 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
- 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
- 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
- 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
- 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
- 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
- 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
- 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
- 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
- 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
- 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
- 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
- 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
- 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
- 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
- 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
- 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
- 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
- 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
- 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
- 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
- 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
- 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
- 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
- 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
- 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
- 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
- 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
- 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
- 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
- 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
- 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
-};
-
-
-static u32 mask_pattern[2][4] = {
- {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
- {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
-};
-
-/**
- * ether_crc16 - compute ethernet CRC
- * @len: buffer length
- * @cp: buffer
- * @crc16: initial CRC
- *
- * Compute a CRC value for a block of data.
- * FIXME: can we use generic functions ?
- */
-
-static u16 ether_crc16(int len, u8 * cp, u16 crc16)
-{
- while (len--)
- crc16 = (crc16 >> 8) ^ crc16_tab[(crc16 ^ *cp++) & 0xff];
- return (crc16);
-}
-
-/**
- * bit_reverse - 16bit reverse
- * @data: 16bit data t reverse
- *
- * Reverse the order of a 16bit value and return the reversed bits
- */
-
-static u16 bit_reverse(u16 data)
-{
- u32 new = 0x00000000;
- int ii;
-
-
- for (ii = 0; ii < 16; ii++) {
- new |= ((u32) (data & 1) << (31 - ii));
- data >>= 1;
- }
-
- return (u16) (new >> 16);
-}
-
-/**
- * wol_calc_crc - WOL CRC
- * @pattern: data pattern
- * @mask_pattern: mask
- *
- * Compute the wake on lan crc hashes for the packet header
- * we are interested in.
- */
-
-u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
-{
- u16 crc = 0xFFFF;
- u8 mask;
- int i, j;
-
- for (i = 0; i < size; i++) {
- mask = mask_pattern[i];
-
- /* Skip this loop if the mask equals to zero */
- if (mask == 0x00)
- continue;
-
- for (j = 0; j < 8; j++) {
- if ((mask & 0x01) == 0) {
- mask >>= 1;
- continue;
- }
- mask >>= 1;
- crc = ether_crc16(1, &(pattern[i * 8 + j]), crc);
- }
- }
- /* Finally, invert the result once to get the correct data */
- crc = ~crc;
- return bit_reverse(crc);
-}
-
-/**
- * velocity_set_wol - set up for wake on lan
- * @vptr: velocity to set WOL status on
- *
- * Set a card up for wake on lan either by unicast or by
- * ARP packet.
- *
- * FIXME: check static buffer is safe here
- */
-
-static int velocity_set_wol(struct velocity_info *vptr)
-{
- struct mac_regs * regs = vptr->mac_regs;
- static u8 buf[256];
- int i;
-
- writew(0xFFFF, ®s->WOLCRClr);
- writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
- writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
-
- /*
- if (vptr->wol_opts & VELOCITY_WOL_PHY)
- writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
- */
-
- if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
- writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
- }
-
- if (vptr->wol_opts & VELOCITY_WOL_ARP) {
- struct arp_packet *arp = (struct arp_packet *) buf;
- u16 crc;
- memset(buf, 0, sizeof(struct arp_packet) + 7);
-
- for (i = 0; i < 4; i++)
- writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
-
- arp->type = htons(ETH_P_ARP);
- arp->ar_op = htons(1);
-
- memcpy(arp->ar_tip, vptr->ip_addr, 4);
-
- crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf, (u8 *) & mask_pattern[0][0]);
-
- writew(crc, ®s->PatternCRC[0]);
- writew(WOLCR_ARP_EN, ®s->WOLCRSet);
- }
-
- BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
- BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
-
- writew(0x0FFF, ®s->WOLSRClr);
-
- if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
- if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
- MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
-
- MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
- }
-
- if (vptr->mii_status & VELOCITY_SPEED_1000)
- MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
-
- BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
-
- {
- u8 GCR;
- GCR = readb(®s->CHIPGCR);
- GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
- writeb(GCR, ®s->CHIPGCR);
- }
-
- BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
- /* Turn on SWPTAG just before entering power mode */
- BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
- /* Go to bed ..... */
- BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
-
- return 0;
-}
-
+++ /dev/null
-/*
- * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
- * All rights reserved.
- *
- * This software may be redistributed and/or modified under
- * the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or
- * any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * File: via-velocity.h
- *
- * Purpose: Header file to define driver's private structures.
- *
- * Author: Chuang Liang-Shing, AJ Jiang
- *
- * Date: Jan 24, 2003
- */
-
-
-#ifndef VELOCITY_H
-#define VELOCITY_H
-
-#define VELOCITY_TX_CSUM_SUPPORT
-
-#define VELOCITY_NAME "via-velocity"
-#define VELOCITY_FULL_DRV_NAM "VIA Networking Velocity Family Gigabit Ethernet Adapter Driver"
-#define VELOCITY_VERSION "1.13"
-
-#define PKT_BUF_SZ 1540
-
-#define MAX_UNITS 8
-#define OPTION_DEFAULT { [0 ... MAX_UNITS-1] = -1}
-
-#define REV_ID_VT6110 (0)
-#define DEVICE_ID (0x3119)
-
-#define BYTE_REG_BITS_ON(x,p) do { writeb(readb((p))|(x),(p));} while (0)
-#define WORD_REG_BITS_ON(x,p) do { writew(readw((p))|(x),(p));} while (0)
-#define DWORD_REG_BITS_ON(x,p) do { writel(readl((p))|(x),(p));} while (0)
-
-#define BYTE_REG_BITS_IS_ON(x,p) (readb((p)) & (x))
-#define WORD_REG_BITS_IS_ON(x,p) (readw((p)) & (x))
-#define DWORD_REG_BITS_IS_ON(x,p) (readl((p)) & (x))
-
-#define BYTE_REG_BITS_OFF(x,p) do { writeb(readb((p)) & (~(x)),(p));} while (0)
-#define WORD_REG_BITS_OFF(x,p) do { writew(readw((p)) & (~(x)),(p));} while (0)
-#define DWORD_REG_BITS_OFF(x,p) do { writel(readl((p)) & (~(x)),(p));} while (0)
-
-#define BYTE_REG_BITS_SET(x,m,p) do { writeb( (readb((p)) & (~(m))) |(x),(p));} while (0)
-#define WORD_REG_BITS_SET(x,m,p) do { writew( (readw((p)) & (~(m))) |(x),(p));} while (0)
-#define DWORD_REG_BITS_SET(x,m,p) do { writel( (readl((p)) & (~(m)))|(x),(p));} while (0)
-
-#define VAR_USED(p) do {(p)=(p);} while (0)
-
-/*
- * Purpose: Structures for MAX RX/TX descriptors.
- */
-
-
-#define B_OWNED_BY_CHIP 1
-#define B_OWNED_BY_HOST 0
-
-/*
- * Bits in the RSR0 register
- */
-
-#define RSR_DETAG 0x0080
-#define RSR_SNTAG 0x0040
-#define RSR_RXER 0x0020
-#define RSR_RL 0x0010
-#define RSR_CE 0x0008
-#define RSR_FAE 0x0004
-#define RSR_CRC 0x0002
-#define RSR_VIDM 0x0001
-
-/*
- * Bits in the RSR1 register
- */
-
-#define RSR_RXOK 0x8000 // rx OK
-#define RSR_PFT 0x4000 // Perfect filtering address match
-#define RSR_MAR 0x2000 // MAC accept multicast address packet
-#define RSR_BAR 0x1000 // MAC accept broadcast address packet
-#define RSR_PHY 0x0800 // MAC accept physical address packet
-#define RSR_VTAG 0x0400 // 802.1p/1q tagging packet indicator
-#define RSR_STP 0x0200 // start of packet
-#define RSR_EDP 0x0100 // end of packet
-
-/*
- * Bits in the RSR1 register
- */
-
-#define RSR1_RXOK 0x80 // rx OK
-#define RSR1_PFT 0x40 // Perfect filtering address match
-#define RSR1_MAR 0x20 // MAC accept multicast address packet
-#define RSR1_BAR 0x10 // MAC accept broadcast address packet
-#define RSR1_PHY 0x08 // MAC accept physical address packet
-#define RSR1_VTAG 0x04 // 802.1p/1q tagging packet indicator
-#define RSR1_STP 0x02 // start of packet
-#define RSR1_EDP 0x01 // end of packet
-
-/*
- * Bits in the CSM register
- */
-
-#define CSM_IPOK 0x40 //IP Checkusm validatiaon ok
-#define CSM_TUPOK 0x20 //TCP/UDP Checkusm validatiaon ok
-#define CSM_FRAG 0x10 //Fragment IP datagram
-#define CSM_IPKT 0x04 //Received an IP packet
-#define CSM_TCPKT 0x02 //Received a TCP packet
-#define CSM_UDPKT 0x01 //Received a UDP packet
-
-/*
- * Bits in the TSR0 register
- */
-
-#define TSR0_ABT 0x0080 // Tx abort because of excessive collision
-#define TSR0_OWT 0x0040 // Jumbo frame Tx abort
-#define TSR0_OWC 0x0020 // Out of window collision
-#define TSR0_COLS 0x0010 // experience collision in this transmit event
-#define TSR0_NCR3 0x0008 // collision retry counter[3]
-#define TSR0_NCR2 0x0004 // collision retry counter[2]
-#define TSR0_NCR1 0x0002 // collision retry counter[1]
-#define TSR0_NCR0 0x0001 // collision retry counter[0]
-#define TSR0_TERR 0x8000 //
-#define TSR0_FDX 0x4000 // current transaction is serviced by full duplex mode
-#define TSR0_GMII 0x2000 // current transaction is serviced by GMII mode
-#define TSR0_LNKFL 0x1000 // packet serviced during link down
-#define TSR0_SHDN 0x0400 // shutdown case
-#define TSR0_CRS 0x0200 // carrier sense lost
-#define TSR0_CDH 0x0100 // AQE test fail (CD heartbeat)
-
-/*
- * Bits in the TSR1 register
- */
-
-#define TSR1_TERR 0x80 //
-#define TSR1_FDX 0x40 // current transaction is serviced by full duplex mode
-#define TSR1_GMII 0x20 // current transaction is serviced by GMII mode
-#define TSR1_LNKFL 0x10 // packet serviced during link down
-#define TSR1_SHDN 0x04 // shutdown case
-#define TSR1_CRS 0x02 // carrier sense lost
-#define TSR1_CDH 0x01 // AQE test fail (CD heartbeat)
-
-//
-// Bits in the TCR0 register
-//
-#define TCR0_TIC 0x80 // assert interrupt immediately while descriptor has been send complete
-#define TCR0_PIC 0x40 // priority interrupt request, INA# is issued over adaptive interrupt scheme
-#define TCR0_VETAG 0x20 // enable VLAN tag
-#define TCR0_IPCK 0x10 // request IP checksum calculation.
-#define TCR0_UDPCK 0x08 // request UDP checksum calculation.
-#define TCR0_TCPCK 0x04 // request TCP checksum calculation.
-#define TCR0_JMBO 0x02 // indicate a jumbo packet in GMAC side
-#define TCR0_CRC 0x01 // disable CRC generation
-
-#define TCPLS_NORMAL 3
-#define TCPLS_START 2
-#define TCPLS_END 1
-#define TCPLS_MED 0
-
-
-// max transmit or receive buffer size
-#define CB_RX_BUF_SIZE 2048UL // max buffer size
- // NOTE: must be multiple of 4
-
-#define CB_MAX_RD_NUM 512 // MAX # of RD
-#define CB_MAX_TD_NUM 256 // MAX # of TD
-
-#define CB_INIT_RD_NUM_3119 128 // init # of RD, for setup VT3119
-#define CB_INIT_TD_NUM_3119 64 // init # of TD, for setup VT3119
-
-#define CB_INIT_RD_NUM 128 // init # of RD, for setup default
-#define CB_INIT_TD_NUM 64 // init # of TD, for setup default
-
-// for 3119
-#define CB_TD_RING_NUM 4 // # of TD rings.
-#define CB_MAX_SEG_PER_PKT 7 // max data seg per packet (Tx)
-
-
-/*
- * If collisions excess 15 times , tx will abort, and
- * if tx fifo underflow, tx will fail
- * we should try to resend it
- */
-
-#define CB_MAX_TX_ABORT_RETRY 3
-
-/*
- * Receive descriptor
- */
-
-struct rdesc0 {
- u16 RSR; /* Receive status */
- u16 len:14; /* Received packet length */
- u16 reserved:1;
- u16 owner:1; /* Who owns this buffer ? */
-};
-
-struct rdesc1 {
- u16 PQTAG;
- u8 CSM;
- u8 IPKT;
-};
-
-struct rx_desc {
- struct rdesc0 rdesc0;
- struct rdesc1 rdesc1;
- u32 pa_low; /* Low 32 bit PCI address */
- u16 pa_high; /* Next 16 bit PCI address (48 total) */
- u16 len:15; /* Frame size */
- u16 inten:1; /* Enable interrupt */
-} __attribute__ ((__packed__));
-
-/*
- * Transmit descriptor
- */
-
-struct tdesc0 {
- u16 TSR; /* Transmit status register */
- u16 pktsize:14; /* Size of frame */
- u16 reserved:1;
- u16 owner:1; /* Who owns the buffer */
-};
-
-struct pqinf { /* Priority queue info */
- u16 VID:12;
- u16 CFI:1;
- u16 priority:3;
-} __attribute__ ((__packed__));
-
-struct tdesc1 {
- struct pqinf pqinf;
- u8 TCR;
- u8 TCPLS:2;
- u8 reserved:2;
- u8 CMDZ:4;
-} __attribute__ ((__packed__));
-
-struct td_buf {
- u32 pa_low;
- u16 pa_high;
- u16 bufsize:14;
- u16 reserved:1;
- u16 queue:1;
-} __attribute__ ((__packed__));
-
-struct tx_desc {
- struct tdesc0 tdesc0;
- struct tdesc1 tdesc1;
- struct td_buf td_buf[7];
-};
-
-struct velocity_rd_info {
- struct sk_buff *skb;
- dma_addr_t skb_dma;
-};
-
-/**
- * alloc_rd_info - allocate an rd info block
- *
- * Alocate and initialize a receive info structure used for keeping
- * track of kernel side information related to each receive
- * descriptor we are using
- */
-
-static inline struct velocity_rd_info *alloc_rd_info(void)
-{
- struct velocity_rd_info *ptr;
- if ((ptr = kmalloc(sizeof(struct velocity_rd_info), GFP_ATOMIC)) == NULL)
- return NULL;
- else {
- memset(ptr, 0, sizeof(struct velocity_rd_info));
- return ptr;
- }
-}
-
-/*
- * Used to track transmit side buffers.
- */
-
-struct velocity_td_info {
- struct sk_buff *skb;
- u8 *buf;
- int nskb_dma;
- dma_addr_t skb_dma[7];
- dma_addr_t buf_dma;
-};
-
-enum {
- OWNED_BY_HOST = 0,
- OWNED_BY_NIC = 1
-} velocity_owner;
-
-
-/*
- * MAC registers and macros.
- */
-
-
-#define MCAM_SIZE 64
-#define VCAM_SIZE 64
-#define TX_QUEUE_NO 4
-
-#define MAX_HW_MIB_COUNTER 32
-#define VELOCITY_MIN_MTU (1514-14)
-#define VELOCITY_MAX_MTU (9000)
-
-/*
- * Registers in the MAC
- */
-
-#define MAC_REG_PAR 0x00 // physical address
-#define MAC_REG_RCR 0x06
-#define MAC_REG_TCR 0x07
-#define MAC_REG_CR0_SET 0x08
-#define MAC_REG_CR1_SET 0x09
-#define MAC_REG_CR2_SET 0x0A
-#define MAC_REG_CR3_SET 0x0B
-#define MAC_REG_CR0_CLR 0x0C
-#define MAC_REG_CR1_CLR 0x0D
-#define MAC_REG_CR2_CLR 0x0E
-#define MAC_REG_CR3_CLR 0x0F
-#define MAC_REG_MAR 0x10
-#define MAC_REG_CAM 0x10
-#define MAC_REG_DEC_BASE_HI 0x18
-#define MAC_REG_DBF_BASE_HI 0x1C
-#define MAC_REG_ISR_CTL 0x20
-#define MAC_REG_ISR_HOTMR 0x20
-#define MAC_REG_ISR_TSUPTHR 0x20
-#define MAC_REG_ISR_RSUPTHR 0x20
-#define MAC_REG_ISR_CTL1 0x21
-#define MAC_REG_TXE_SR 0x22
-#define MAC_REG_RXE_SR 0x23
-#define MAC_REG_ISR 0x24
-#define MAC_REG_ISR0 0x24
-#define MAC_REG_ISR1 0x25
-#define MAC_REG_ISR2 0x26
-#define MAC_REG_ISR3 0x27
-#define MAC_REG_IMR 0x28
-#define MAC_REG_IMR0 0x28
-#define MAC_REG_IMR1 0x29
-#define MAC_REG_IMR2 0x2A
-#define MAC_REG_IMR3 0x2B
-#define MAC_REG_TDCSR_SET 0x30
-#define MAC_REG_RDCSR_SET 0x32
-#define MAC_REG_TDCSR_CLR 0x34
-#define MAC_REG_RDCSR_CLR 0x36
-#define MAC_REG_RDBASE_LO 0x38
-#define MAC_REG_RDINDX 0x3C
-#define MAC_REG_TDBASE_LO 0x40
-#define MAC_REG_RDCSIZE 0x50
-#define MAC_REG_TDCSIZE 0x52
-#define MAC_REG_TDINDX 0x54
-#define MAC_REG_TDIDX0 0x54
-#define MAC_REG_TDIDX1 0x56
-#define MAC_REG_TDIDX2 0x58
-#define MAC_REG_TDIDX3 0x5A
-#define MAC_REG_PAUSE_TIMER 0x5C
-#define MAC_REG_RBRDU 0x5E
-#define MAC_REG_FIFO_TEST0 0x60
-#define MAC_REG_FIFO_TEST1 0x64
-#define MAC_REG_CAMADDR 0x68
-#define MAC_REG_CAMCR 0x69
-#define MAC_REG_GFTEST 0x6A
-#define MAC_REG_FTSTCMD 0x6B
-#define MAC_REG_MIICFG 0x6C
-#define MAC_REG_MIISR 0x6D
-#define MAC_REG_PHYSR0 0x6E
-#define MAC_REG_PHYSR1 0x6F
-#define MAC_REG_MIICR 0x70
-#define MAC_REG_MIIADR 0x71
-#define MAC_REG_MIIDATA 0x72
-#define MAC_REG_SOFT_TIMER0 0x74
-#define MAC_REG_SOFT_TIMER1 0x76
-#define MAC_REG_CFGA 0x78
-#define MAC_REG_CFGB 0x79
-#define MAC_REG_CFGC 0x7A
-#define MAC_REG_CFGD 0x7B
-#define MAC_REG_DCFG0 0x7C
-#define MAC_REG_DCFG1 0x7D
-#define MAC_REG_MCFG0 0x7E
-#define MAC_REG_MCFG1 0x7F
-
-#define MAC_REG_TBIST 0x80
-#define MAC_REG_RBIST 0x81
-#define MAC_REG_PMCC 0x82
-#define MAC_REG_STICKHW 0x83
-#define MAC_REG_MIBCR 0x84
-#define MAC_REG_EERSV 0x85
-#define MAC_REG_REVID 0x86
-#define MAC_REG_MIBREAD 0x88
-#define MAC_REG_BPMA 0x8C
-#define MAC_REG_EEWR_DATA 0x8C
-#define MAC_REG_BPMD_WR 0x8F
-#define MAC_REG_BPCMD 0x90
-#define MAC_REG_BPMD_RD 0x91
-#define MAC_REG_EECHKSUM 0x92
-#define MAC_REG_EECSR 0x93
-#define MAC_REG_EERD_DATA 0x94
-#define MAC_REG_EADDR 0x96
-#define MAC_REG_EMBCMD 0x97
-#define MAC_REG_JMPSR0 0x98
-#define MAC_REG_JMPSR1 0x99
-#define MAC_REG_JMPSR2 0x9A
-#define MAC_REG_JMPSR3 0x9B
-#define MAC_REG_CHIPGSR 0x9C
-#define MAC_REG_TESTCFG 0x9D
-#define MAC_REG_DEBUG 0x9E
-#define MAC_REG_CHIPGCR 0x9F
-#define MAC_REG_WOLCR0_SET 0xA0
-#define MAC_REG_WOLCR1_SET 0xA1
-#define MAC_REG_PWCFG_SET 0xA2
-#define MAC_REG_WOLCFG_SET 0xA3
-#define MAC_REG_WOLCR0_CLR 0xA4
-#define MAC_REG_WOLCR1_CLR 0xA5
-#define MAC_REG_PWCFG_CLR 0xA6
-#define MAC_REG_WOLCFG_CLR 0xA7
-#define MAC_REG_WOLSR0_SET 0xA8
-#define MAC_REG_WOLSR1_SET 0xA9
-#define MAC_REG_WOLSR0_CLR 0xAC
-#define MAC_REG_WOLSR1_CLR 0xAD
-#define MAC_REG_PATRN_CRC0 0xB0
-#define MAC_REG_PATRN_CRC1 0xB2
-#define MAC_REG_PATRN_CRC2 0xB4
-#define MAC_REG_PATRN_CRC3 0xB6
-#define MAC_REG_PATRN_CRC4 0xB8
-#define MAC_REG_PATRN_CRC5 0xBA
-#define MAC_REG_PATRN_CRC6 0xBC
-#define MAC_REG_PATRN_CRC7 0xBE
-#define MAC_REG_BYTEMSK0_0 0xC0
-#define MAC_REG_BYTEMSK0_1 0xC4
-#define MAC_REG_BYTEMSK0_2 0xC8
-#define MAC_REG_BYTEMSK0_3 0xCC
-#define MAC_REG_BYTEMSK1_0 0xD0
-#define MAC_REG_BYTEMSK1_1 0xD4
-#define MAC_REG_BYTEMSK1_2 0xD8
-#define MAC_REG_BYTEMSK1_3 0xDC
-#define MAC_REG_BYTEMSK2_0 0xE0
-#define MAC_REG_BYTEMSK2_1 0xE4
-#define MAC_REG_BYTEMSK2_2 0xE8
-#define MAC_REG_BYTEMSK2_3 0xEC
-#define MAC_REG_BYTEMSK3_0 0xF0
-#define MAC_REG_BYTEMSK3_1 0xF4
-#define MAC_REG_BYTEMSK3_2 0xF8
-#define MAC_REG_BYTEMSK3_3 0xFC
-
-/*
- * Bits in the RCR register
- */
-
-#define RCR_AS 0x80
-#define RCR_AP 0x40
-#define RCR_AL 0x20
-#define RCR_PROM 0x10
-#define RCR_AB 0x08
-#define RCR_AM 0x04
-#define RCR_AR 0x02
-#define RCR_SEP 0x01
-
-/*
- * Bits in the TCR register
- */
-
-#define TCR_TB2BDIS 0x80
-#define TCR_COLTMC1 0x08
-#define TCR_COLTMC0 0x04
-#define TCR_LB1 0x02 /* loopback[1] */
-#define TCR_LB0 0x01 /* loopback[0] */
-
-/*
- * Bits in the CR0 register
- */
-
-#define CR0_TXON 0x00000008UL
-#define CR0_RXON 0x00000004UL
-#define CR0_STOP 0x00000002UL /* stop MAC, default = 1 */
-#define CR0_STRT 0x00000001UL /* start MAC */
-#define CR0_SFRST 0x00008000UL /* software reset */
-#define CR0_TM1EN 0x00004000UL
-#define CR0_TM0EN 0x00002000UL
-#define CR0_DPOLL 0x00000800UL /* disable rx/tx auto polling */
-#define CR0_DISAU 0x00000100UL
-#define CR0_XONEN 0x00800000UL
-#define CR0_FDXTFCEN 0x00400000UL /* full-duplex TX flow control enable */
-#define CR0_FDXRFCEN 0x00200000UL /* full-duplex RX flow control enable */
-#define CR0_HDXFCEN 0x00100000UL /* half-duplex flow control enable */
-#define CR0_XHITH1 0x00080000UL /* TX XON high threshold 1 */
-#define CR0_XHITH0 0x00040000UL /* TX XON high threshold 0 */
-#define CR0_XLTH1 0x00020000UL /* TX pause frame low threshold 1 */
-#define CR0_XLTH0 0x00010000UL /* TX pause frame low threshold 0 */
-#define CR0_GSPRST 0x80000000UL
-#define CR0_FORSRST 0x40000000UL
-#define CR0_FPHYRST 0x20000000UL
-#define CR0_DIAG 0x10000000UL
-#define CR0_INTPCTL 0x04000000UL
-#define CR0_GINTMSK1 0x02000000UL
-#define CR0_GINTMSK0 0x01000000UL
-
-/*
- * Bits in the CR1 register
- */
-
-#define CR1_SFRST 0x80 /* software reset */
-#define CR1_TM1EN 0x40
-#define CR1_TM0EN 0x20
-#define CR1_DPOLL 0x08 /* disable rx/tx auto polling */
-#define CR1_DISAU 0x01
-
-/*
- * Bits in the CR2 register
- */
-
-#define CR2_XONEN 0x80
-#define CR2_FDXTFCEN 0x40 /* full-duplex TX flow control enable */
-#define CR2_FDXRFCEN 0x20 /* full-duplex RX flow control enable */
-#define CR2_HDXFCEN 0x10 /* half-duplex flow control enable */
-#define CR2_XHITH1 0x08 /* TX XON high threshold 1 */
-#define CR2_XHITH0 0x04 /* TX XON high threshold 0 */
-#define CR2_XLTH1 0x02 /* TX pause frame low threshold 1 */
-#define CR2_XLTH0 0x01 /* TX pause frame low threshold 0 */
-
-/*
- * Bits in the CR3 register
- */
-
-#define CR3_GSPRST 0x80
-#define CR3_FORSRST 0x40
-#define CR3_FPHYRST 0x20
-#define CR3_DIAG 0x10
-#define CR3_INTPCTL 0x04
-#define CR3_GINTMSK1 0x02
-#define CR3_GINTMSK0 0x01
-
-#define ISRCTL_UDPINT 0x8000
-#define ISRCTL_TSUPDIS 0x4000
-#define ISRCTL_RSUPDIS 0x2000
-#define ISRCTL_PMSK1 0x1000
-#define ISRCTL_PMSK0 0x0800
-#define ISRCTL_INTPD 0x0400
-#define ISRCTL_HCRLD 0x0200
-#define ISRCTL_SCRLD 0x0100
-
-/*
- * Bits in the ISR_CTL1 register
- */
-
-#define ISRCTL1_UDPINT 0x80
-#define ISRCTL1_TSUPDIS 0x40
-#define ISRCTL1_RSUPDIS 0x20
-#define ISRCTL1_PMSK1 0x10
-#define ISRCTL1_PMSK0 0x08
-#define ISRCTL1_INTPD 0x04
-#define ISRCTL1_HCRLD 0x02
-#define ISRCTL1_SCRLD 0x01
-
-/*
- * Bits in the TXE_SR register
- */
-
-#define TXESR_TFDBS 0x08
-#define TXESR_TDWBS 0x04
-#define TXESR_TDRBS 0x02
-#define TXESR_TDSTR 0x01
-
-/*
- * Bits in the RXE_SR register
- */
-
-#define RXESR_RFDBS 0x08
-#define RXESR_RDWBS 0x04
-#define RXESR_RDRBS 0x02
-#define RXESR_RDSTR 0x01
-
-/*
- * Bits in the ISR register
- */
-
-#define ISR_ISR3 0x80000000UL
-#define ISR_ISR2 0x40000000UL
-#define ISR_ISR1 0x20000000UL
-#define ISR_ISR0 0x10000000UL
-#define ISR_TXSTLI 0x02000000UL
-#define ISR_RXSTLI 0x01000000UL
-#define ISR_HFLD 0x00800000UL
-#define ISR_UDPI 0x00400000UL
-#define ISR_MIBFI 0x00200000UL
-#define ISR_SHDNI 0x00100000UL
-#define ISR_PHYI 0x00080000UL
-#define ISR_PWEI 0x00040000UL
-#define ISR_TMR1I 0x00020000UL
-#define ISR_TMR0I 0x00010000UL
-#define ISR_SRCI 0x00008000UL
-#define ISR_LSTPEI 0x00004000UL
-#define ISR_LSTEI 0x00002000UL
-#define ISR_OVFI 0x00001000UL
-#define ISR_FLONI 0x00000800UL
-#define ISR_RACEI 0x00000400UL
-#define ISR_TXWB1I 0x00000200UL
-#define ISR_TXWB0I 0x00000100UL
-#define ISR_PTX3I 0x00000080UL
-#define ISR_PTX2I 0x00000040UL
-#define ISR_PTX1I 0x00000020UL
-#define ISR_PTX0I 0x00000010UL
-#define ISR_PTXI 0x00000008UL
-#define ISR_PRXI 0x00000004UL
-#define ISR_PPTXI 0x00000002UL
-#define ISR_PPRXI 0x00000001UL
-
-/*
- * Bits in the IMR register
- */
-
-#define IMR_TXSTLM 0x02000000UL
-#define IMR_UDPIM 0x00400000UL
-#define IMR_MIBFIM 0x00200000UL
-#define IMR_SHDNIM 0x00100000UL
-#define IMR_PHYIM 0x00080000UL
-#define IMR_PWEIM 0x00040000UL
-#define IMR_TMR1IM 0x00020000UL
-#define IMR_TMR0IM 0x00010000UL
-
-#define IMR_SRCIM 0x00008000UL
-#define IMR_LSTPEIM 0x00004000UL
-#define IMR_LSTEIM 0x00002000UL
-#define IMR_OVFIM 0x00001000UL
-#define IMR_FLONIM 0x00000800UL
-#define IMR_RACEIM 0x00000400UL
-#define IMR_TXWB1IM 0x00000200UL
-#define IMR_TXWB0IM 0x00000100UL
-
-#define IMR_PTX3IM 0x00000080UL
-#define IMR_PTX2IM 0x00000040UL
-#define IMR_PTX1IM 0x00000020UL
-#define IMR_PTX0IM 0x00000010UL
-#define IMR_PTXIM 0x00000008UL
-#define IMR_PRXIM 0x00000004UL
-#define IMR_PPTXIM 0x00000002UL
-#define IMR_PPRXIM 0x00000001UL
-
-/* 0x0013FB0FUL = initial value of IMR */
-
-#define INT_MASK_DEF (IMR_PPTXIM|IMR_PPRXIM|IMR_PTXIM|IMR_PRXIM|\
- IMR_PWEIM|IMR_TXWB0IM|IMR_TXWB1IM|IMR_FLONIM|\
- IMR_OVFIM|IMR_LSTEIM|IMR_LSTPEIM|IMR_SRCIM|IMR_MIBFIM|\
- IMR_SHDNIM|IMR_TMR1IM|IMR_TMR0IM|IMR_TXSTLM)
-
-/*
- * Bits in the TDCSR0/1, RDCSR0 register
- */
-
-#define TRDCSR_DEAD 0x0008
-#define TRDCSR_WAK 0x0004
-#define TRDCSR_ACT 0x0002
-#define TRDCSR_RUN 0x0001
-
-/*
- * Bits in the CAMADDR register
- */
-
-#define CAMADDR_CAMEN 0x80
-#define CAMADDR_VCAMSL 0x40
-
-/*
- * Bits in the CAMCR register
- */
-
-#define CAMCR_PS1 0x80
-#define CAMCR_PS0 0x40
-#define CAMCR_AITRPKT 0x20
-#define CAMCR_AITR16 0x10
-#define CAMCR_CAMRD 0x08
-#define CAMCR_CAMWR 0x04
-#define CAMCR_PS_CAM_MASK 0x40
-#define CAMCR_PS_CAM_DATA 0x80
-#define CAMCR_PS_MAR 0x00
-
-/*
- * Bits in the MIICFG register
- */
-
-#define MIICFG_MPO1 0x80
-#define MIICFG_MPO0 0x40
-#define MIICFG_MFDC 0x20
-
-/*
- * Bits in the MIISR register
- */
-
-#define MIISR_MIDLE 0x80
-
-/*
- * Bits in the PHYSR0 register
- */
-
-#define PHYSR0_PHYRST 0x80
-#define PHYSR0_LINKGD 0x40
-#define PHYSR0_FDPX 0x10
-#define PHYSR0_SPDG 0x08
-#define PHYSR0_SPD10 0x04
-#define PHYSR0_RXFLC 0x02
-#define PHYSR0_TXFLC 0x01
-
-/*
- * Bits in the PHYSR1 register
- */
-
-#define PHYSR1_PHYTBI 0x01
-
-/*
- * Bits in the MIICR register
- */
-
-#define MIICR_MAUTO 0x80
-#define MIICR_RCMD 0x40
-#define MIICR_WCMD 0x20
-#define MIICR_MDPM 0x10
-#define MIICR_MOUT 0x08
-#define MIICR_MDO 0x04
-#define MIICR_MDI 0x02
-#define MIICR_MDC 0x01
-
-/*
- * Bits in the MIIADR register
- */
-
-#define MIIADR_SWMPL 0x80
-
-/*
- * Bits in the CFGA register
- */
-
-#define CFGA_PMHCTG 0x08
-#define CFGA_GPIO1PD 0x04
-#define CFGA_ABSHDN 0x02
-#define CFGA_PACPI 0x01
-
-/*
- * Bits in the CFGB register
- */
-
-#define CFGB_GTCKOPT 0x80
-#define CFGB_MIIOPT 0x40
-#define CFGB_CRSEOPT 0x20
-#define CFGB_OFSET 0x10
-#define CFGB_CRANDOM 0x08
-#define CFGB_CAP 0x04
-#define CFGB_MBA 0x02
-#define CFGB_BAKOPT 0x01
-
-/*
- * Bits in the CFGC register
- */
-
-#define CFGC_EELOAD 0x80
-#define CFGC_BROPT 0x40
-#define CFGC_DLYEN 0x20
-#define CFGC_DTSEL 0x10
-#define CFGC_BTSEL 0x08
-#define CFGC_BPS2 0x04 /* bootrom select[2] */
-#define CFGC_BPS1 0x02 /* bootrom select[1] */
-#define CFGC_BPS0 0x01 /* bootrom select[0] */
-
-/*
- * Bits in the CFGD register
- */
-
-#define CFGD_IODIS 0x80
-#define CFGD_MSLVDACEN 0x40
-#define CFGD_CFGDACEN 0x20
-#define CFGD_PCI64EN 0x10
-#define CFGD_HTMRL4 0x08
-
-/*
- * Bits in the DCFG1 register
- */
-
-#define DCFG_XMWI 0x8000
-#define DCFG_XMRM 0x4000
-#define DCFG_XMRL 0x2000
-#define DCFG_PERDIS 0x1000
-#define DCFG_MRWAIT 0x0400
-#define DCFG_MWWAIT 0x0200
-#define DCFG_LATMEN 0x0100
-
-/*
- * Bits in the MCFG0 register
- */
-
-#define MCFG_RXARB 0x0080
-#define MCFG_RFT1 0x0020
-#define MCFG_RFT0 0x0010
-#define MCFG_LOWTHOPT 0x0008
-#define MCFG_PQEN 0x0004
-#define MCFG_RTGOPT 0x0002
-#define MCFG_VIDFR 0x0001
-
-/*
- * Bits in the MCFG1 register
- */
-
-#define MCFG_TXARB 0x8000
-#define MCFG_TXQBK1 0x0800
-#define MCFG_TXQBK0 0x0400
-#define MCFG_TXQNOBK 0x0200
-#define MCFG_SNAPOPT 0x0100
-
-/*
- * Bits in the PMCC register
- */
-
-#define PMCC_DSI 0x80
-#define PMCC_D2_DIS 0x40
-#define PMCC_D1_DIS 0x20
-#define PMCC_D3C_EN 0x10
-#define PMCC_D3H_EN 0x08
-#define PMCC_D2_EN 0x04
-#define PMCC_D1_EN 0x02
-#define PMCC_D0_EN 0x01
-
-/*
- * Bits in STICKHW
- */
-
-#define STICKHW_SWPTAG 0x10
-#define STICKHW_WOLSR 0x08
-#define STICKHW_WOLEN 0x04
-#define STICKHW_DS1 0x02 /* R/W by software/cfg cycle */
-#define STICKHW_DS0 0x01 /* suspend well DS write port */
-
-/*
- * Bits in the MIBCR register
- */
-
-#define MIBCR_MIBISTOK 0x80
-#define MIBCR_MIBISTGO 0x40
-#define MIBCR_MIBINC 0x20
-#define MIBCR_MIBHI 0x10
-#define MIBCR_MIBFRZ 0x08
-#define MIBCR_MIBFLSH 0x04
-#define MIBCR_MPTRINI 0x02
-#define MIBCR_MIBCLR 0x01
-
-/*
- * Bits in the EERSV register
- */
-
-#define EERSV_BOOT_RPL ((u8) 0x01) /* Boot method selection for VT6110 */
-
-#define EERSV_BOOT_MASK ((u8) 0x06)
-#define EERSV_BOOT_INT19 ((u8) 0x00)
-#define EERSV_BOOT_INT18 ((u8) 0x02)
-#define EERSV_BOOT_LOCAL ((u8) 0x04)
-#define EERSV_BOOT_BEV ((u8) 0x06)
-
-
-/*
- * Bits in BPCMD
- */
-
-#define BPCMD_BPDNE 0x80
-#define BPCMD_EBPWR 0x02
-#define BPCMD_EBPRD 0x01
-
-/*
- * Bits in the EECSR register
- */
-
-#define EECSR_EMBP 0x40 /* eeprom embeded programming */
-#define EECSR_RELOAD 0x20 /* eeprom content reload */
-#define EECSR_DPM 0x10 /* eeprom direct programming */
-#define EECSR_ECS 0x08 /* eeprom CS pin */
-#define EECSR_ECK 0x04 /* eeprom CK pin */
-#define EECSR_EDI 0x02 /* eeprom DI pin */
-#define EECSR_EDO 0x01 /* eeprom DO pin */
-
-/*
- * Bits in the EMBCMD register
- */
-
-#define EMBCMD_EDONE 0x80
-#define EMBCMD_EWDIS 0x08
-#define EMBCMD_EWEN 0x04
-#define EMBCMD_EWR 0x02
-#define EMBCMD_ERD 0x01
-
-/*
- * Bits in TESTCFG register
- */
-
-#define TESTCFG_HBDIS 0x80
-
-/*
- * Bits in CHIPGCR register
- */
-
-#define CHIPGCR_FCGMII 0x80
-#define CHIPGCR_FCFDX 0x40
-#define CHIPGCR_FCRESV 0x20
-#define CHIPGCR_FCMODE 0x10
-#define CHIPGCR_LPSOPT 0x08
-#define CHIPGCR_TM1US 0x04
-#define CHIPGCR_TM0US 0x02
-#define CHIPGCR_PHYINTEN 0x01
-
-/*
- * Bits in WOLCR0
- */
-
-#define WOLCR_MSWOLEN7 0x0080 /* enable pattern match filtering */
-#define WOLCR_MSWOLEN6 0x0040
-#define WOLCR_MSWOLEN5 0x0020
-#define WOLCR_MSWOLEN4 0x0010
-#define WOLCR_MSWOLEN3 0x0008
-#define WOLCR_MSWOLEN2 0x0004
-#define WOLCR_MSWOLEN1 0x0002
-#define WOLCR_MSWOLEN0 0x0001
-#define WOLCR_ARP_EN 0x0001
-
-/*
- * Bits in WOLCR1
- */
-
-#define WOLCR_LINKOFF_EN 0x0800 /* link off detected enable */
-#define WOLCR_LINKON_EN 0x0400 /* link on detected enable */
-#define WOLCR_MAGIC_EN 0x0200 /* magic packet filter enable */
-#define WOLCR_UNICAST_EN 0x0100 /* unicast filter enable */
-
-
-/*
- * Bits in PWCFG
- */
-
-#define PWCFG_PHYPWOPT 0x80 /* internal MII I/F timing */
-#define PWCFG_PCISTICK 0x40 /* PCI sticky R/W enable */
-#define PWCFG_WOLTYPE 0x20 /* pulse(1) or button (0) */
-#define PWCFG_LEGCY_WOL 0x10
-#define PWCFG_PMCSR_PME_SR 0x08
-#define PWCFG_PMCSR_PME_EN 0x04 /* control by PCISTICK */
-#define PWCFG_LEGACY_WOLSR 0x02 /* Legacy WOL_SR shadow */
-#define PWCFG_LEGACY_WOLEN 0x01 /* Legacy WOL_EN shadow */
-
-/*
- * Bits in WOLCFG
- */
-
-#define WOLCFG_PMEOVR 0x80 /* for legacy use, force PMEEN always */
-#define WOLCFG_SAM 0x20 /* accept multicast case reset, default=0 */
-#define WOLCFG_SAB 0x10 /* accept broadcast case reset, default=0 */
-#define WOLCFG_SMIIACC 0x08 /* ?? */
-#define WOLCFG_SGENWH 0x02
-#define WOLCFG_PHYINTEN 0x01 /* 0:PHYINT trigger enable, 1:use internal MII
- to report status change */
-/*
- * Bits in WOLSR1
- */
-
-#define WOLSR_LINKOFF_INT 0x0800
-#define WOLSR_LINKON_INT 0x0400
-#define WOLSR_MAGIC_INT 0x0200
-#define WOLSR_UNICAST_INT 0x0100
-
-/*
- * Ethernet address filter type
- */
-
-#define PKT_TYPE_NONE 0x0000 /* Turn off receiver */
-#define PKT_TYPE_DIRECTED 0x0001 /* obselete, directed address is always accepted */
-#define PKT_TYPE_MULTICAST 0x0002
-#define PKT_TYPE_ALL_MULTICAST 0x0004
-#define PKT_TYPE_BROADCAST 0x0008
-#define PKT_TYPE_PROMISCUOUS 0x0020
-#define PKT_TYPE_LONG 0x2000 /* NOTE.... the definition of LONG is >2048 bytes in our chip */
-#define PKT_TYPE_RUNT 0x4000
-#define PKT_TYPE_ERROR 0x8000 /* Accept error packets, e.g. CRC error */
-
-/*
- * Loopback mode
- */
-
-#define MAC_LB_NONE 0x00
-#define MAC_LB_INTERNAL 0x01
-#define MAC_LB_EXTERNAL 0x02
-
-/*
- * Enabled mask value of irq
- */
-
-#if defined(_SIM)
-#define IMR_MASK_VALUE 0x0033FF0FUL /* initial value of IMR
- set IMR0 to 0x0F according to spec */
-
-#else
-#define IMR_MASK_VALUE 0x0013FB0FUL /* initial value of IMR
- ignore MIBFI,RACEI to
- reduce intr. frequency
- NOTE.... do not enable NoBuf int mask at driver driver
- when (1) NoBuf -> RxThreshold = SF
- (2) OK -> RxThreshold = original value
- */
-#endif
-
-/*
- * Revision id
- */
-
-#define REV_ID_VT3119_A0 0x00
-#define REV_ID_VT3119_A1 0x01
-#define REV_ID_VT3216_A0 0x10
-
-/*
- * Max time out delay time
- */
-
-#define W_MAX_TIMEOUT 0x0FFFU
-
-
-/*
- * MAC registers as a structure. Cannot be directly accessed this
- * way but generates offsets for readl/writel() calls
- */
-
-struct mac_regs {
- volatile u8 PAR[6]; /* 0x00 */
- volatile u8 RCR;
- volatile u8 TCR;
-
- volatile u32 CR0Set; /* 0x08 */
- volatile u32 CR0Clr; /* 0x0C */
-
- volatile u8 MARCAM[8]; /* 0x10 */
-
- volatile u32 DecBaseHi; /* 0x18 */
- volatile u16 DbfBaseHi; /* 0x1C */
- volatile u16 reserved_1E;
-
- volatile u16 ISRCTL; /* 0x20 */
- volatile u8 TXESR;
- volatile u8 RXESR;
-
- volatile u32 ISR; /* 0x24 */
- volatile u32 IMR;
-
- volatile u32 TDStatusPort; /* 0x2C */
-
- volatile u16 TDCSRSet; /* 0x30 */
- volatile u8 RDCSRSet;
- volatile u8 reserved_33;
- volatile u16 TDCSRClr;
- volatile u8 RDCSRClr;
- volatile u8 reserved_37;
-
- volatile u32 RDBaseLo; /* 0x38 */
- volatile u16 RDIdx; /* 0x3C */
- volatile u16 reserved_3E;
-
- volatile u32 TDBaseLo[4]; /* 0x40 */
-
- volatile u16 RDCSize; /* 0x50 */
- volatile u16 TDCSize; /* 0x52 */
- volatile u16 TDIdx[4]; /* 0x54 */
- volatile u16 tx_pause_timer; /* 0x5C */
- volatile u16 RBRDU; /* 0x5E */
-
- volatile u32 FIFOTest0; /* 0x60 */
- volatile u32 FIFOTest1; /* 0x64 */
-
- volatile u8 CAMADDR; /* 0x68 */
- volatile u8 CAMCR; /* 0x69 */
- volatile u8 GFTEST; /* 0x6A */
- volatile u8 FTSTCMD; /* 0x6B */
-
- volatile u8 MIICFG; /* 0x6C */
- volatile u8 MIISR;
- volatile u8 PHYSR0;
- volatile u8 PHYSR1;
- volatile u8 MIICR;
- volatile u8 MIIADR;
- volatile u16 MIIDATA;
-
- volatile u16 SoftTimer0; /* 0x74 */
- volatile u16 SoftTimer1;
-
- volatile u8 CFGA; /* 0x78 */
- volatile u8 CFGB;
- volatile u8 CFGC;
- volatile u8 CFGD;
-
- volatile u16 DCFG; /* 0x7C */
- volatile u16 MCFG;
-
- volatile u8 TBIST; /* 0x80 */
- volatile u8 RBIST;
- volatile u8 PMCPORT;
- volatile u8 STICKHW;
-
- volatile u8 MIBCR; /* 0x84 */
- volatile u8 reserved_85;
- volatile u8 rev_id;
- volatile u8 PORSTS;
-
- volatile u32 MIBData; /* 0x88 */
-
- volatile u16 EEWrData;
-
- volatile u8 reserved_8E;
- volatile u8 BPMDWr;
- volatile u8 BPCMD;
- volatile u8 BPMDRd;
-
- volatile u8 EECHKSUM; /* 0x92 */
- volatile u8 EECSR;
-
- volatile u16 EERdData; /* 0x94 */
- volatile u8 EADDR;
- volatile u8 EMBCMD;
-
-
- volatile u8 JMPSR0; /* 0x98 */
- volatile u8 JMPSR1;
- volatile u8 JMPSR2;
- volatile u8 JMPSR3;
- volatile u8 CHIPGSR; /* 0x9C */
- volatile u8 TESTCFG;
- volatile u8 DEBUG;
- volatile u8 CHIPGCR;
-
- volatile u16 WOLCRSet; /* 0xA0 */
- volatile u8 PWCFGSet;
- volatile u8 WOLCFGSet;
-
- volatile u16 WOLCRClr; /* 0xA4 */
- volatile u8 PWCFGCLR;
- volatile u8 WOLCFGClr;
-
- volatile u16 WOLSRSet; /* 0xA8 */
- volatile u16 reserved_AA;
-
- volatile u16 WOLSRClr; /* 0xAC */
- volatile u16 reserved_AE;
-
- volatile u16 PatternCRC[8]; /* 0xB0 */
- volatile u32 ByteMask[4][4]; /* 0xC0 */
-} __attribute__ ((__packed__));
-
-
-enum hw_mib {
- HW_MIB_ifRxAllPkts = 0,
- HW_MIB_ifRxOkPkts,
- HW_MIB_ifTxOkPkts,
- HW_MIB_ifRxErrorPkts,
- HW_MIB_ifRxRuntOkPkt,
- HW_MIB_ifRxRuntErrPkt,
- HW_MIB_ifRx64Pkts,
- HW_MIB_ifTx64Pkts,
- HW_MIB_ifRx65To127Pkts,
- HW_MIB_ifTx65To127Pkts,
- HW_MIB_ifRx128To255Pkts,
- HW_MIB_ifTx128To255Pkts,
- HW_MIB_ifRx256To511Pkts,
- HW_MIB_ifTx256To511Pkts,
- HW_MIB_ifRx512To1023Pkts,
- HW_MIB_ifTx512To1023Pkts,
- HW_MIB_ifRx1024To1518Pkts,
- HW_MIB_ifTx1024To1518Pkts,
- HW_MIB_ifTxEtherCollisions,
- HW_MIB_ifRxPktCRCE,
- HW_MIB_ifRxJumboPkts,
- HW_MIB_ifTxJumboPkts,
- HW_MIB_ifRxMacControlFrames,
- HW_MIB_ifTxMacControlFrames,
- HW_MIB_ifRxPktFAE,
- HW_MIB_ifRxLongOkPkt,
- HW_MIB_ifRxLongPktErrPkt,
- HW_MIB_ifTXSQEErrors,
- HW_MIB_ifRxNobuf,
- HW_MIB_ifRxSymbolErrors,
- HW_MIB_ifInRangeLengthErrors,
- HW_MIB_ifLateCollisions,
- HW_MIB_SIZE
-};
-
-enum chip_type {
- CHIP_TYPE_VT6110 = 1,
-};
-
-struct velocity_info_tbl {
- enum chip_type chip_id;
- char *name;
- int io_size;
- int txqueue;
- u32 flags;
-};
-
-#define mac_hw_mibs_init(regs) {\
- BYTE_REG_BITS_ON(MIBCR_MIBFRZ,&((regs)->MIBCR));\
- BYTE_REG_BITS_ON(MIBCR_MIBCLR,&((regs)->MIBCR));\
- do {}\
- while (BYTE_REG_BITS_IS_ON(MIBCR_MIBCLR,&((regs)->MIBCR)));\
- BYTE_REG_BITS_OFF(MIBCR_MIBFRZ,&((regs)->MIBCR));\
-}
-
-#define mac_read_isr(regs) readl(&((regs)->ISR))
-#define mac_write_isr(regs, x) writel((x),&((regs)->ISR))
-#define mac_clear_isr(regs) writel(0xffffffffL,&((regs)->ISR))
-
-#define mac_write_int_mask(mask, regs) writel((mask),&((regs)->IMR));
-#define mac_disable_int(regs) writel(CR0_GINTMSK1,&((regs)->CR0Clr))
-#define mac_enable_int(regs) writel(CR0_GINTMSK1,&((regs)->CR0Set))
-
-#define mac_hw_mibs_read(regs, MIBs) {\
- int i;\
- BYTE_REG_BITS_ON(MIBCR_MPTRINI,&((regs)->MIBCR));\
- for (i=0;i<HW_MIB_SIZE;i++) {\
- (MIBs)[i]=readl(&((regs)->MIBData));\
- }\
-}
-
-#define mac_set_dma_length(regs, n) {\
- BYTE_REG_BITS_SET((n),0x07,&((regs)->DCFG));\
-}
-
-#define mac_set_rx_thresh(regs, n) {\
- BYTE_REG_BITS_SET((n),(MCFG_RFT0|MCFG_RFT1),&((regs)->MCFG));\
-}
-
-#define mac_rx_queue_run(regs) {\
- writeb(TRDCSR_RUN, &((regs)->RDCSRSet));\
-}
-
-#define mac_rx_queue_wake(regs) {\
- writeb(TRDCSR_WAK, &((regs)->RDCSRSet));\
-}
-
-#define mac_tx_queue_run(regs, n) {\
- writew(TRDCSR_RUN<<((n)*4),&((regs)->TDCSRSet));\
-}
-
-#define mac_tx_queue_wake(regs, n) {\
- writew(TRDCSR_WAK<<(n*4),&((regs)->TDCSRSet));\
-}
-
-#define mac_eeprom_reload(regs) {\
- int i=0;\
- BYTE_REG_BITS_ON(EECSR_RELOAD,&((regs)->EECSR));\
- do {\
- udelay(10);\
- if (i++>0x1000) {\
- break;\
- }\
- }while (BYTE_REG_BITS_IS_ON(EECSR_RELOAD,&((regs)->EECSR)));\
-}
-
-enum velocity_cam_type {
- VELOCITY_VLAN_ID_CAM = 0,
- VELOCITY_MULTICAST_CAM
-};
-
-/**
- * mac_get_cam_mask - Read a CAM mask
- * @regs: register block for this velocity
- * @mask: buffer to store mask
- * @cam_type: CAM to fetch
- *
- * Fetch the mask bits of the selected CAM and store them into the
- * provided mask buffer.
- */
-
-static inline void mac_get_cam_mask(struct mac_regs * regs, u8 * mask, enum velocity_cam_type cam_type)
-{
- int i;
- /* Select CAM mask */
- BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
-
- if (cam_type == VELOCITY_VLAN_ID_CAM)
- writeb(CAMADDR_VCAMSL, ®s->CAMADDR);
- else
- writeb(0, ®s->CAMADDR);
-
- /* read mask */
- for (i = 0; i < 8; i++)
- *mask++ = readb(&(regs->MARCAM[i]));
-
- /* disable CAMEN */
- writeb(0, ®s->CAMADDR);
-
- /* Select mar */
- BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
-
-}
-
-/**
- * mac_set_cam_mask - Set a CAM mask
- * @regs: register block for this velocity
- * @mask: CAM mask to load
- * @cam_type: CAM to store
- *
- * Store a new mask into a CAM
- */
-
-static inline void mac_set_cam_mask(struct mac_regs * regs, u8 * mask, enum velocity_cam_type cam_type)
-{
- int i;
- /* Select CAM mask */
- BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
-
- if (cam_type == VELOCITY_VLAN_ID_CAM)
- writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR);
- else
- writeb(CAMADDR_CAMEN, ®s->CAMADDR);
-
- for (i = 0; i < 8; i++) {
- writeb(*mask++, &(regs->MARCAM[i]));
- }
- /* disable CAMEN */
- writeb(0, ®s->CAMADDR);
-
- /* Select CAM mask */
- BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
-}
-
-/**
- * mac_set_cam - set CAM data
- * @regs: register block of this velocity
- * @idx: Cam index
- * @addr: 2 or 6 bytes of CAM data
- * @cam_type: CAM to load
- *
- * Load an address or vlan tag into a CAM
- */
-
-static inline void mac_set_cam(struct mac_regs * regs, int idx, u8 *addr, enum velocity_cam_type cam_type)
-{
- int i;
-
- /* Select CAM mask */
- BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
-
- idx &= (64 - 1);
-
- if (cam_type == VELOCITY_VLAN_ID_CAM)
- writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR);
- else
- writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR);
-
- if (cam_type == VELOCITY_VLAN_ID_CAM)
- writew(*((u16 *) addr), ®s->MARCAM[0]);
- else {
- for (i = 0; i < 6; i++) {
- writeb(*addr++, &(regs->MARCAM[i]));
- }
- }
- BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
-
- udelay(10);
-
- writeb(0, ®s->CAMADDR);
-
- /* Select CAM mask */
- BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
-}
-
-/**
- * mac_get_cam - fetch CAM data
- * @regs: register block of this velocity
- * @idx: Cam index
- * @addr: buffer to hold up to 6 bytes of CAM data
- * @cam_type: CAM to load
- *
- * Load an address or vlan tag from a CAM into the buffer provided by
- * the caller. VLAN tags are 2 bytes the address cam entries are 6.
- */
-
-static inline void mac_get_cam(struct mac_regs * regs, int idx, u8 *addr, enum velocity_cam_type cam_type)
-{
- int i;
-
- /* Select CAM mask */
- BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
-
- idx &= (64 - 1);
-
- if (cam_type == VELOCITY_VLAN_ID_CAM)
- writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR);
- else
- writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR);
-
- BYTE_REG_BITS_ON(CAMCR_CAMRD, ®s->CAMCR);
-
- udelay(10);
-
- if (cam_type == VELOCITY_VLAN_ID_CAM)
- *((u16 *) addr) = readw(&(regs->MARCAM[0]));
- else
- for (i = 0; i < 6; i++, addr++)
- *((u8 *) addr) = readb(&(regs->MARCAM[i]));
-
- writeb(0, ®s->CAMADDR);
-
- /* Select CAM mask */
- BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
-}
-
-/**
- * mac_wol_reset - reset WOL after exiting low power
- * @regs: register block of this velocity
- *
- * Called after we drop out of wake on lan mode in order to
- * reset the Wake on lan features. This function doesn't restore
- * the rest of the logic from the result of sleep/wakeup
- */
-
-inline static void mac_wol_reset(struct mac_regs * regs)
-{
-
- /* Turn off SWPTAG right after leaving power mode */
- BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW);
- /* clear sticky bits */
- BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
-
- BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR);
- BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
- /* disable force PME-enable */
- writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr);
- /* disable power-event config bit */
- writew(0xFFFF, ®s->WOLCRClr);
- /* clear power status */
- writew(0xFFFF, ®s->WOLSRClr);
-}
-
-
-/*
- * Header for WOL definitions. Used to compute hashes
- */
-
-typedef u8 MCAM_ADDR[ETH_ALEN];
-
-struct arp_packet {
- u8 dest_mac[ETH_ALEN];
- u8 src_mac[ETH_ALEN];
- u16 type;
- u16 ar_hrd;
- u16 ar_pro;
- u8 ar_hln;
- u8 ar_pln;
- u16 ar_op;
- u8 ar_sha[ETH_ALEN];
- u8 ar_sip[4];
- u8 ar_tha[ETH_ALEN];
- u8 ar_tip[4];
-} __attribute__ ((__packed__));
-
-struct _magic_packet {
- u8 dest_mac[6];
- u8 src_mac[6];
- u16 type;
- u8 MAC[16][6];
- u8 password[6];
-} __attribute__ ((__packed__));
-
-/*
- * Store for chip context when saving and restoring status. Not
- * all fields are saved/restored currently.
- */
-
-struct velocity_context {
- u8 mac_reg[256];
- MCAM_ADDR cam_addr[MCAM_SIZE];
- u16 vcam[VCAM_SIZE];
- u32 cammask[2];
- u32 patcrc[2];
- u32 pattern[8];
-};
-
-
-/*
- * MII registers.
- */
-
-
-/*
- * Registers in the MII (offset unit is WORD)
- */
-
-#define MII_REG_BMCR 0x00 // physical address
-#define MII_REG_BMSR 0x01 //
-#define MII_REG_PHYID1 0x02 // OUI
-#define MII_REG_PHYID2 0x03 // OUI + Module ID + REV ID
-#define MII_REG_ANAR 0x04 //
-#define MII_REG_ANLPAR 0x05 //
-#define MII_REG_G1000CR 0x09 //
-#define MII_REG_G1000SR 0x0A //
-#define MII_REG_MODCFG 0x10 //
-#define MII_REG_TCSR 0x16 //
-#define MII_REG_PLED 0x1B //
-// NS, MYSON only
-#define MII_REG_PCR 0x17 //
-// ESI only
-#define MII_REG_PCSR 0x17 //
-#define MII_REG_AUXCR 0x1C //
-
-// Marvell 88E1000/88E1000S
-#define MII_REG_PSCR 0x10 // PHY specific control register
-
-//
-// Bits in the BMCR register
-//
-#define BMCR_RESET 0x8000 //
-#define BMCR_LBK 0x4000 //
-#define BMCR_SPEED100 0x2000 //
-#define BMCR_AUTO 0x1000 //
-#define BMCR_PD 0x0800 //
-#define BMCR_ISO 0x0400 //
-#define BMCR_REAUTO 0x0200 //
-#define BMCR_FDX 0x0100 //
-#define BMCR_SPEED1G 0x0040 //
-//
-// Bits in the BMSR register
-//
-#define BMSR_AUTOCM 0x0020 //
-#define BMSR_LNK 0x0004 //
-
-//
-// Bits in the ANAR register
-//
-#define ANAR_ASMDIR 0x0800 // Asymmetric PAUSE support
-#define ANAR_PAUSE 0x0400 // Symmetric PAUSE Support
-#define ANAR_T4 0x0200 //
-#define ANAR_TXFD 0x0100 //
-#define ANAR_TX 0x0080 //
-#define ANAR_10FD 0x0040 //
-#define ANAR_10 0x0020 //
-//
-// Bits in the ANLPAR register
-//
-#define ANLPAR_ASMDIR 0x0800 // Asymmetric PAUSE support
-#define ANLPAR_PAUSE 0x0400 // Symmetric PAUSE Support
-#define ANLPAR_T4 0x0200 //
-#define ANLPAR_TXFD 0x0100 //
-#define ANLPAR_TX 0x0080 //
-#define ANLPAR_10FD 0x0040 //
-#define ANLPAR_10 0x0020 //
-
-//
-// Bits in the G1000CR register
-//
-#define G1000CR_1000FD 0x0200 // PHY is 1000-T Full-duplex capable
-#define G1000CR_1000 0x0100 // PHY is 1000-T Half-duplex capable
-
-//
-// Bits in the G1000SR register
-//
-#define G1000SR_1000FD 0x0800 // LP PHY is 1000-T Full-duplex capable
-#define G1000SR_1000 0x0400 // LP PHY is 1000-T Half-duplex capable
-
-#define TCSR_ECHODIS 0x2000 //
-#define AUXCR_MDPPS 0x0004 //
-
-// Bits in the PLED register
-#define PLED_LALBE 0x0004 //
-
-// Marvell 88E1000/88E1000S Bits in the PHY specific control register (10h)
-#define PSCR_ACRSTX 0x0800 // Assert CRS on Transmit
-
-#define PHYID_CICADA_CS8201 0x000FC410UL
-#define PHYID_VT3216_32BIT 0x000FC610UL
-#define PHYID_VT3216_64BIT 0x000FC600UL
-#define PHYID_MARVELL_1000 0x01410C50UL
-#define PHYID_MARVELL_1000S 0x01410C40UL
-
-#define PHYID_REV_ID_MASK 0x0000000FUL
-
-#define PHYID_GET_PHY_REV_ID(i) ((i) & PHYID_REV_ID_MASK)
-#define PHYID_GET_PHY_ID(i) ((i) & ~PHYID_REV_ID_MASK)
-
-#define MII_REG_BITS_ON(x,i,p) do {\
- u16 w;\
- velocity_mii_read((p),(i),&(w));\
- (w)|=(x);\
- velocity_mii_write((p),(i),(w));\
-} while (0)
-
-#define MII_REG_BITS_OFF(x,i,p) do {\
- u16 w;\
- velocity_mii_read((p),(i),&(w));\
- (w)&=(~(x));\
- velocity_mii_write((p),(i),(w));\
-} while (0)
-
-#define MII_REG_BITS_IS_ON(x,i,p) ({\
- u16 w;\
- velocity_mii_read((p),(i),&(w));\
- ((int) ((w) & (x)));})
-
-#define MII_GET_PHY_ID(p) ({\
- u32 id;\
- velocity_mii_read((p),MII_REG_PHYID2,(u16 *) &id);\
- velocity_mii_read((p),MII_REG_PHYID1,((u16 *) &id)+1);\
- (id);})
-
-/*
- * Inline debug routine
- */
-
-
-enum velocity_msg_level {
- MSG_LEVEL_ERR = 0, //Errors that will cause abnormal operation.
- MSG_LEVEL_NOTICE = 1, //Some errors need users to be notified.
- MSG_LEVEL_INFO = 2, //Normal message.
- MSG_LEVEL_VERBOSE = 3, //Will report all trival errors.
- MSG_LEVEL_DEBUG = 4 //Only for debug purpose.
-};
-
-#ifdef VELOCITY_DEBUG
-#define ASSERT(x) { \
- if (!(x)) { \
- printk(KERN_ERR "assertion %s failed: file %s line %d\n", #x,\
- __FUNCTION__, __LINE__);\
- BUG(); \
- }\
-}
-#define VELOCITY_DBG(p,args...) printk(p, ##args)
-#else
-#define ASSERT(x)
-#define VELOCITY_DBG(x)
-#endif
-
-#define VELOCITY_PRT(l, p, args...) do {if (l<=msglevel) printk( p ,##args);} while (0)
-
-#define VELOCITY_PRT_CAMMASK(p,t) {\
- int i;\
- if ((t)==VELOCITY_MULTICAST_CAM) {\
- for (i=0;i<(MCAM_SIZE/8);i++)\
- printk("%02X",(p)->mCAMmask[i]);\
- }\
- else {\
- for (i=0;i<(VCAM_SIZE/8);i++)\
- printk("%02X",(p)->vCAMmask[i]);\
- }\
- printk("\n");\
-}
-
-
-
-#define VELOCITY_WOL_MAGIC 0x00000000UL
-#define VELOCITY_WOL_PHY 0x00000001UL
-#define VELOCITY_WOL_ARP 0x00000002UL
-#define VELOCITY_WOL_UCAST 0x00000004UL
-#define VELOCITY_WOL_BCAST 0x00000010UL
-#define VELOCITY_WOL_MCAST 0x00000020UL
-#define VELOCITY_WOL_MAGIC_SEC 0x00000040UL
-
-/*
- * Flags for options
- */
-
-#define VELOCITY_FLAGS_TAGGING 0x00000001UL
-#define VELOCITY_FLAGS_TX_CSUM 0x00000002UL
-#define VELOCITY_FLAGS_RX_CSUM 0x00000004UL
-#define VELOCITY_FLAGS_IP_ALIGN 0x00000008UL
-#define VELOCITY_FLAGS_VAL_PKT_LEN 0x00000010UL
-
-#define VELOCITY_FLAGS_FLOW_CTRL 0x01000000UL
-
-/*
- * Flags for driver status
- */
-
-#define VELOCITY_FLAGS_OPENED 0x00010000UL
-#define VELOCITY_FLAGS_VMNS_CONNECTED 0x00020000UL
-#define VELOCITY_FLAGS_VMNS_COMMITTED 0x00040000UL
-#define VELOCITY_FLAGS_WOL_ENABLED 0x00080000UL
-
-/*
- * Flags for MII status
- */
-
-#define VELOCITY_LINK_FAIL 0x00000001UL
-#define VELOCITY_SPEED_10 0x00000002UL
-#define VELOCITY_SPEED_100 0x00000004UL
-#define VELOCITY_SPEED_1000 0x00000008UL
-#define VELOCITY_DUPLEX_FULL 0x00000010UL
-#define VELOCITY_AUTONEG_ENABLE 0x00000020UL
-#define VELOCITY_FORCED_BY_EEPROM 0x00000040UL
-
-/*
- * For velocity_set_media_duplex
- */
-
-#define VELOCITY_LINK_CHANGE 0x00000001UL
-
-enum speed_opt {
- SPD_DPX_AUTO = 0,
- SPD_DPX_100_HALF = 1,
- SPD_DPX_100_FULL = 2,
- SPD_DPX_10_HALF = 3,
- SPD_DPX_10_FULL = 4
-};
-
-enum velocity_init_type {
- VELOCITY_INIT_COLD = 0,
- VELOCITY_INIT_RESET,
- VELOCITY_INIT_WOL
-};
-
-enum velocity_flow_cntl_type {
- FLOW_CNTL_DEFAULT = 1,
- FLOW_CNTL_TX,
- FLOW_CNTL_RX,
- FLOW_CNTL_TX_RX,
- FLOW_CNTL_DISABLE,
-};
-
-struct velocity_opt {
- int numrx; /* Number of RX descriptors */
- int numtx; /* Number of TX descriptors */
- enum speed_opt spd_dpx; /* Media link mode */
- int vid; /* vlan id */
- int DMA_length; /* DMA length */
- int rx_thresh; /* RX_THRESH */
- int flow_cntl;
- int wol_opts; /* Wake on lan options */
- int td_int_count;
- int int_works;
- int rx_bandwidth_hi;
- int rx_bandwidth_lo;
- int rx_bandwidth_en;
- u32 flags;
-};
-
-struct velocity_info {
- struct velocity_info *next;
- struct velocity_info *prev;
-
- struct pci_dev *pdev;
- struct net_device *dev;
- struct net_device_stats stats;
-
-#if CONFIG_PM
- u32 pci_state[16];
-#endif
-
- dma_addr_t rd_pool_dma;
- dma_addr_t td_pool_dma[TX_QUEUE_NO];
-
- dma_addr_t tx_bufs_dma;
- u8 *tx_bufs;
-
- u8 ip_addr[4];
- enum chip_type chip_id;
-
- struct mac_regs * mac_regs;
- unsigned long memaddr;
- unsigned long ioaddr;
- u32 io_size;
-
- u8 rev_id;
-
-#define AVAIL_TD(p,q) ((p)->options.numtx-((p)->td_used[(q)]))
-
- int num_txq;
-
- volatile int td_used[TX_QUEUE_NO];
- int td_curr[TX_QUEUE_NO];
- int td_tail[TX_QUEUE_NO];
- struct tx_desc *td_rings[TX_QUEUE_NO];
- struct velocity_td_info *td_infos[TX_QUEUE_NO];
-
- int rd_curr;
- int rd_used;
- struct rx_desc *rd_ring;
- struct velocity_rd_info *rd_info; /* It's an array */
-
-#define GET_RD_BY_IDX(vptr, idx) (vptr->rd_ring[idx])
- u32 mib_counter[MAX_HW_MIB_COUNTER];
- struct velocity_opt options;
-
- u32 int_mask;
-
- u32 flags;
-
- int rx_buf_sz;
- u32 mii_status;
- u32 phy_id;
- int multicast_limit;
-
- u8 vCAMmask[(VCAM_SIZE / 8)];
- u8 mCAMmask[(MCAM_SIZE / 8)];
-
- spinlock_t lock;
- spinlock_t xmit_lock;
-
- int wol_opts;
- u8 wol_passwd[6];
-
- struct velocity_context context;
-
- u32 ticks;
- u32 rx_bytes;
-
-};
-
-/**
- * velocity_get_ip - find an IP address for the device
- * @vptr: Velocity to query
- *
- * Dig out an IP address for this interface so that we can
- * configure wakeup with WOL for ARP. If there are multiple IP
- * addresses on this chain then we use the first - multi-IP WOL is not
- * supported.
- *
- * CHECK ME: locking
- */
-
-inline static int velocity_get_ip(struct velocity_info *vptr)
-{
- struct in_device *in_dev = (struct in_device *) vptr->dev->ip_ptr;
- struct in_ifaddr *ifa;
-
- if (in_dev != NULL) {
- ifa = (struct in_ifaddr *) in_dev->ifa_list;
- if (ifa != NULL) {
- memcpy(vptr->ip_addr, &ifa->ifa_address, 4);
- return 0;
- }
- }
- return -ENOENT;
-}
-
-/**
- * velocity_update_hw_mibs - fetch MIB counters from chip
- * @vptr: velocity to update
- *
- * The velocity hardware keeps certain counters in the hardware
- * side. We need to read these when the user asks for statistics
- * or when they overflow (causing an interrupt). The read of the
- * statistic clears it, so we keep running master counters in user
- * space.
- */
-
-static inline void velocity_update_hw_mibs(struct velocity_info *vptr)
-{
- u32 tmp;
- int i;
- BYTE_REG_BITS_ON(MIBCR_MIBFLSH, &(vptr->mac_regs->MIBCR));
-
- while (BYTE_REG_BITS_IS_ON(MIBCR_MIBFLSH, &(vptr->mac_regs->MIBCR)));
-
- BYTE_REG_BITS_ON(MIBCR_MPTRINI, &(vptr->mac_regs->MIBCR));
- for (i = 0; i < HW_MIB_SIZE; i++) {
- tmp = readl(&(vptr->mac_regs->MIBData)) & 0x00FFFFFFUL;
- vptr->mib_counter[i] += tmp;
- }
-}
-
-/**
- * init_flow_control_register - set up flow control
- * @vptr: velocity to configure
- *
- * Configure the flow control registers for this velocity device.
- */
-
-static inline void init_flow_control_register(struct velocity_info *vptr)
-{
- struct mac_regs * regs = vptr->mac_regs;
-
- /* Set {XHITH1, XHITH0, XLTH1, XLTH0} in FlowCR1 to {1, 0, 1, 1}
- depend on RD=64, and Turn on XNOEN in FlowCR1 */
- writel((CR0_XONEN | CR0_XHITH1 | CR0_XLTH1 | CR0_XLTH0), ®s->CR0Set);
- writel((CR0_FDXTFCEN | CR0_FDXRFCEN | CR0_HDXFCEN | CR0_XHITH0), ®s->CR0Clr);
-
- /* Set TxPauseTimer to 0xFFFF */
- writew(0xFFFF, ®s->tx_pause_timer);
-
- /* Initialize RBRDU to Rx buffer count. */
- writew(vptr->options.numrx, ®s->RBRDU);
-}
-
-
-#endif
+++ /dev/null
-/*
- * Hardware-level driver for the COMX and HICOMX cards
- * for Linux kernel 2.2.X
- *
- * Original authors: Arpad Bakay <bakay.arpad@synergon.hu>,
- * Peter Bajan <bajan.peter@synergon.hu>,
- * Rewritten by: Tivadar Szemethy <tiv@itc.hu>
- * Currently maintained by: Gergely Madarasz <gorgo@itc.hu>
- *
- * Copyright (C) 1995-2000 ITConsult-Pro Co. <info@itc.hu>
- *
- * Contributors:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 0.86
- * Daniele Bellucci <bellucda@tiscali.it> - 0.87
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Version 0.80 (99/06/11):
- * - port back to kernel, add support builtin driver
- * - cleaned up the source code a bit
- *
- * Version 0.81 (99/06/22):
- * - cleaned up the board load functions, no more long reset
- * timeouts
- * - lower modem lines on close
- * - some interrupt handling fixes
- *
- * Version 0.82 (99/08/24):
- * - fix multiple board support
- *
- * Version 0.83 (99/11/30):
- * - interrupt handling and locking fixes during initalization
- * - really fix multiple board support
- *
- * Version 0.84 (99/12/02):
- * - some workarounds for problematic hardware/firmware
- *
- * Version 0.85 (00/01/14):
- * - some additional workarounds :/
- * - printk cleanups
- * Version 0.86 (00/08/15):
- * - resource release on failure at COMX_init
- *
- * Version 0.87 (03/07/09)
- * - audit copy_from_user in comxhw_write_proc
- */
-
-#define VERSION "0.87"
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-#include "comx.h"
-#include "comxhw.h"
-
-MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>, Tivadar Szemethy <tiv@itc.hu>, Arpad Bakay");
-MODULE_DESCRIPTION("Hardware-level driver for the COMX and HICOMX adapters\n");
-MODULE_LICENSE("GPL");
-
-#define COMX_readw(dev, offset) (readw(dev->mem_start + offset + \
- (unsigned int)(((struct comx_privdata *)\
- ((struct comx_channel *)dev->priv)->HW_privdata)->channel) \
- * COMX_CHANNEL_OFFSET))
-
-#define COMX_WRITE(dev, offset, value) (writew(value, dev->mem_start + offset \
- + (unsigned int)(((struct comx_privdata *) \
- ((struct comx_channel *)dev->priv)->HW_privdata)->channel) \
- * COMX_CHANNEL_OFFSET))
-
-#define COMX_CMD(dev, cmd) (COMX_WRITE(dev, OFF_A_L2_CMD, cmd))
-
-struct comx_firmware {
- int len;
- unsigned char *data;
-};
-
-struct comx_privdata {
- struct comx_firmware *firmware;
- u16 clock;
- char channel; // channel no.
- int memory_size;
- short io_extent;
- u_long histogram[5];
-};
-
-static struct net_device *memory_used[(COMX_MEM_MAX - COMX_MEM_MIN) / 0x10000];
-extern struct comx_hardware hicomx_hw;
-extern struct comx_hardware comx_hw;
-extern struct comx_hardware cmx_hw;
-
-static irqreturn_t COMX_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-
-static void COMX_board_on(struct net_device *dev)
-{
- outb_p( (byte) (((dev->mem_start & 0xf0000) >> 16) |
- COMX_ENABLE_BOARD_IT | COMX_ENABLE_BOARD_MEM), dev->base_addr);
-}
-
-static void COMX_board_off(struct net_device *dev)
-{
- outb_p( (byte) (((dev->mem_start & 0xf0000) >> 16) |
- COMX_ENABLE_BOARD_IT), dev->base_addr);
-}
-
-static void HICOMX_board_on(struct net_device *dev)
-{
- outb_p( (byte) (((dev->mem_start & 0xf0000) >> 12) |
- HICOMX_ENABLE_BOARD_MEM), dev->base_addr);
-}
-
-static void HICOMX_board_off(struct net_device *dev)
-{
- outb_p( (byte) (((dev->mem_start & 0xf0000) >> 12) |
- HICOMX_DISABLE_BOARD_MEM), dev->base_addr);
-}
-
-static void COMX_set_clock(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
-
- COMX_WRITE(dev, OFF_A_L1_CLKINI, hw->clock);
-}
-
-static struct net_device *COMX_access_board(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct net_device *ret;
- int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
- unsigned long flags;
-
-
- save_flags(flags); cli();
-
- ret = memory_used[mempos];
-
- if(ret == dev) {
- goto out;
- }
-
- memory_used[mempos] = dev;
-
- if (!ch->twin || ret != ch->twin) {
- if (ret) ((struct comx_channel *)ret->priv)->HW_board_off(ret);
- ch->HW_board_on(dev);
- }
-out:
- restore_flags(flags);
- return ret;
-}
-
-static void COMX_release_board(struct net_device *dev, struct net_device *savep)
-{
- unsigned long flags;
- int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
- struct comx_channel *ch = dev->priv;
-
- save_flags(flags); cli();
-
- if (memory_used[mempos] == savep) {
- goto out;
- }
-
- memory_used[mempos] = savep;
- if (!ch->twin || ch->twin != savep) {
- ch->HW_board_off(dev);
- if (savep) ((struct comx_channel*)savep->priv)->HW_board_on(savep);
- }
-out:
- restore_flags(flags);
-}
-
-static int COMX_txe(struct net_device *dev)
-{
- struct net_device *savep;
- struct comx_channel *ch = dev->priv;
- int rc = 0;
-
- savep = ch->HW_access_board(dev);
- if (COMX_readw(dev,OFF_A_L2_LINKUP) == LINKUP_READY) {
- rc = COMX_readw(dev,OFF_A_L2_TxEMPTY);
- }
- ch->HW_release_board(dev,savep);
- if(rc==0xffff) {
- printk(KERN_ERR "%s, OFF_A_L2_TxEMPTY is %d\n",dev->name, rc);
- }
- return rc;
-}
-
-static int COMX_send_packet(struct net_device *dev, struct sk_buff *skb)
-{
- struct net_device *savep;
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- int ret = FRAME_DROPPED;
- word tmp;
-
- savep = ch->HW_access_board(dev);
-
- if (ch->debug_flags & DEBUG_HW_TX) {
- comx_debug_bytes(dev, skb->data, skb->len,"COMX_send packet");
- }
-
- if (skb->len > COMX_MAX_TX_SIZE) {
- ret=FRAME_DROPPED;
- goto out;
- }
-
- tmp=COMX_readw(dev, OFF_A_L2_TxEMPTY);
- if ((ch->line_status & LINE_UP) && tmp==1) {
- int lensave = skb->len;
- int dest = COMX_readw(dev, OFF_A_L2_TxBUFP);
- word *data = (word *)skb->data;
-
- if(dest==0xffff) {
- printk(KERN_ERR "%s: OFF_A_L2_TxBUFP is %d\n", dev->name, dest);
- ret=FRAME_DROPPED;
- goto out;
- }
-
- writew((unsigned short)skb->len, dev->mem_start + dest);
- dest += 2;
- while (skb->len > 1) {
- writew(*data++, dev->mem_start + dest);
- dest += 2; skb->len -= 2;
- }
- if (skb->len == 1) {
- writew(*((byte *)data), dev->mem_start + dest);
- }
- writew(0, dev->mem_start + (int)hw->channel *
- COMX_CHANNEL_OFFSET + OFF_A_L2_TxEMPTY);
- ch->stats.tx_packets++;
- ch->stats.tx_bytes += lensave;
- ret = FRAME_ACCEPTED;
- } else {
- ch->stats.tx_dropped++;
- printk(KERN_INFO "%s: frame dropped\n",dev->name);
- if(tmp) {
- printk(KERN_ERR "%s: OFF_A_L2_TxEMPTY is %d\n",dev->name,tmp);
- }
- }
-
-out:
- ch->HW_release_board(dev, savep);
- dev_kfree_skb(skb);
- return ret;
-}
-
-static inline int comx_read_buffer(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- word rbuf_offs;
- struct sk_buff *skb;
- word len;
- int i=0;
- word *writeptr;
-
- i = 0;
- rbuf_offs = COMX_readw(dev, OFF_A_L2_RxBUFP);
- if(rbuf_offs == 0xffff) {
- printk(KERN_ERR "%s: OFF_A_L2_RxBUFP is %d\n",dev->name,rbuf_offs);
- return 0;
- }
- len = readw(dev->mem_start + rbuf_offs);
- if(len > COMX_MAX_RX_SIZE) {
- printk(KERN_ERR "%s: packet length is %d\n",dev->name,len);
- return 0;
- }
- if ((skb = dev_alloc_skb(len + 16)) == NULL) {
- ch->stats.rx_dropped++;
- COMX_WRITE(dev, OFF_A_L2_DAV, 0);
- return 0;
- }
- rbuf_offs += 2;
- skb_reserve(skb, 16);
- skb_put(skb, len);
- skb->dev = dev;
- writeptr = (word *)skb->data;
- while (i < len) {
- *writeptr++ = readw(dev->mem_start + rbuf_offs);
- rbuf_offs += 2;
- i += 2;
- }
- COMX_WRITE(dev, OFF_A_L2_DAV, 0);
- ch->stats.rx_packets++;
- ch->stats.rx_bytes += len;
- if (ch->debug_flags & DEBUG_HW_RX) {
- comx_debug_skb(dev, skb, "COMX_interrupt receiving");
- }
- ch->LINE_rx(dev, skb);
- return 1;
-}
-
-static inline char comx_line_change(struct net_device *dev, char linestat)
-{
- struct comx_channel *ch=dev->priv;
- char idle=1;
-
-
- if (linestat & LINE_UP) { /* Vonal fol */
- if (ch->lineup_delay) {
- if (!test_and_set_bit(0, &ch->lineup_pending)) {
- ch->lineup_timer.function = comx_lineup_func;
- ch->lineup_timer.data = (unsigned long)dev;
- ch->lineup_timer.expires = jiffies +
- HZ*ch->lineup_delay;
- add_timer(&ch->lineup_timer);
- idle=0;
- }
- } else {
- idle=0;
- ch->LINE_status(dev, ch->line_status |= LINE_UP);
- }
- } else { /* Vonal le */
- idle=0;
- if (test_and_clear_bit(0, &ch->lineup_pending)) {
- del_timer(&ch->lineup_timer);
- } else {
- ch->line_status &= ~LINE_UP;
- if (ch->LINE_status) {
- ch->LINE_status(dev, ch->line_status);
- }
- }
- }
- return idle;
-}
-
-
-
-static irqreturn_t COMX_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *dev = dev_id;
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- struct net_device *interrupted;
- unsigned long jiffs;
- char idle = 0;
- int count = 0;
- word tmp;
-
- if (dev == NULL) {
- printk(KERN_ERR "COMX_interrupt: irq %d for unknown device\n", irq);
- return IRQ_NONE;
- }
-
- jiffs = jiffies;
-
- interrupted = ch->HW_access_board(dev);
-
- while (!idle && count < 5000) {
- char channel = 0;
- idle = 1;
-
- while (channel < 2) {
- char linestat = 0;
- char buffers_emptied = 0;
-
- if (channel == 1) {
- if (ch->twin) {
- dev = ch->twin;
- ch = dev->priv;
- hw = ch->HW_privdata;
- } else {
- break;
- }
- } else {
- COMX_WRITE(dev, OFF_A_L1_REPENA,
- COMX_readw(dev, OFF_A_L1_REPENA) & 0xFF00);
- }
- channel++;
-
- if ((ch->init_status & (HW_OPEN | LINE_OPEN)) !=
- (HW_OPEN | LINE_OPEN)) {
- continue;
- }
-
- /* Collect stats */
- tmp = COMX_readw(dev, OFF_A_L1_ABOREC);
- COMX_WRITE(dev, OFF_A_L1_ABOREC, 0);
- if(tmp==0xffff) {
- printk(KERN_ERR "%s: OFF_A_L1_ABOREC is %d\n",dev->name,tmp);
- break;
- } else {
- ch->stats.rx_missed_errors += (tmp >> 8) & 0xff;
- ch->stats.rx_over_errors += tmp & 0xff;
- }
- tmp = COMX_readw(dev, OFF_A_L1_CRCREC);
- COMX_WRITE(dev, OFF_A_L1_CRCREC, 0);
- if(tmp==0xffff) {
- printk(KERN_ERR "%s: OFF_A_L1_CRCREC is %d\n",dev->name,tmp);
- break;
- } else {
- ch->stats.rx_crc_errors += (tmp >> 8) & 0xff;
- ch->stats.rx_missed_errors += tmp & 0xff;
- }
-
- if ((ch->line_status & LINE_UP) && ch->LINE_rx) {
- tmp=COMX_readw(dev, OFF_A_L2_DAV);
- while (tmp==1) {
- idle=0;
- buffers_emptied+=comx_read_buffer(dev);
- tmp=COMX_readw(dev, OFF_A_L2_DAV);
- }
- if(tmp) {
- printk(KERN_ERR "%s: OFF_A_L2_DAV is %d\n", dev->name, tmp);
- break;
- }
- }
-
- tmp=COMX_readw(dev, OFF_A_L2_TxEMPTY);
- if (tmp==1 && ch->LINE_tx) {
- ch->LINE_tx(dev);
- }
- if(tmp==0xffff) {
- printk(KERN_ERR "%s: OFF_A_L2_TxEMPTY is %d\n", dev->name, tmp);
- break;
- }
-
- if (COMX_readw(dev, OFF_A_L1_PBUFOVR) >> 8) {
- linestat &= ~LINE_UP;
- } else {
- linestat |= LINE_UP;
- }
-
- if ((linestat & LINE_UP) != (ch->line_status & LINE_UP)) {
- ch->stats.tx_carrier_errors++;
- idle &= comx_line_change(dev,linestat);
- }
-
- hw->histogram[(int)buffers_emptied]++;
- }
- count++;
- }
-
- if(count==5000) {
- printk(KERN_WARNING "%s: interrupt stuck\n",dev->name);
- }
-
- ch->HW_release_board(dev, interrupted);
- return IRQ_HANDLED;
-}
-
-static int COMX_open(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- struct proc_dir_entry *procfile = ch->procdir->subdir;
- unsigned long jiffs;
- int twin_open=0;
- int retval;
- struct net_device *savep;
-
- if (!dev->base_addr || !dev->irq || !dev->mem_start) {
- return -ENODEV;
- }
-
- if (ch->twin && (((struct comx_channel *)(ch->twin->priv))->init_status & HW_OPEN)) {
- twin_open=1;
- }
-
- if (!twin_open) {
- if (!request_region(dev->base_addr, hw->io_extent, dev->name)) {
- return -EAGAIN;
- }
- if (request_irq(dev->irq, COMX_interrupt, 0, dev->name,
- (void *)dev)) {
- printk(KERN_ERR "comx-hw-comx: unable to obtain irq %d\n", dev->irq);
- release_region(dev->base_addr, hw->io_extent);
- return -EAGAIN;
- }
- ch->init_status |= IRQ_ALLOCATED;
- if (!ch->HW_load_board || ch->HW_load_board(dev)) {
- ch->init_status &= ~IRQ_ALLOCATED;
- retval=-ENODEV;
- goto error;
- }
- }
-
- savep = ch->HW_access_board(dev);
- COMX_WRITE(dev, OFF_A_L2_LINKUP, 0);
-
- if (ch->HW_set_clock) {
- ch->HW_set_clock(dev);
- }
-
- COMX_CMD(dev, COMX_CMD_INIT);
- jiffs = jiffies;
- while (COMX_readw(dev, OFF_A_L2_LINKUP) != 1 && time_before(jiffies, jiffs + HZ)) {
- schedule_timeout(1);
- }
-
- if (time_after_eq(jiffies, jiffs + HZ)) {
- printk(KERN_ERR "%s: board timeout on INIT command\n", dev->name);
- ch->HW_release_board(dev, savep);
- retval=-EIO;
- goto error;
- }
- udelay(1000);
-
- COMX_CMD(dev, COMX_CMD_OPEN);
-
- jiffs = jiffies;
- while (COMX_readw(dev, OFF_A_L2_LINKUP) != 3 && time_before(jiffies, jiffs + HZ)) {
- schedule_timeout(1);
- }
-
- if (time_after_eq(jiffies, jiffs + HZ)) {
- printk(KERN_ERR "%s: board timeout on OPEN command\n", dev->name);
- ch->HW_release_board(dev, savep);
- retval=-EIO;
- goto error;
- }
-
- ch->init_status |= HW_OPEN;
-
- /* Ez eleg ciki, de ilyen a rendszer */
- if (COMX_readw(dev, OFF_A_L1_PBUFOVR) >> 8) {
- ch->line_status &= ~LINE_UP;
- } else {
- ch->line_status |= LINE_UP;
- }
-
- if (ch->LINE_status) {
- ch->LINE_status(dev, ch->line_status);
- }
-
- ch->HW_release_board(dev, savep);
-
- for ( ; procfile ; procfile = procfile->next) {
- if (strcmp(procfile->name, FILENAME_IRQ) == 0
- || strcmp(procfile->name, FILENAME_IO) == 0
- || strcmp(procfile->name, FILENAME_MEMADDR) == 0
- || strcmp(procfile->name, FILENAME_CHANNEL) == 0
- || strcmp(procfile->name, FILENAME_FIRMWARE) == 0
- || strcmp(procfile->name, FILENAME_CLOCK) == 0) {
- procfile->mode = S_IFREG | 0444;
-
- }
- }
-
- return 0;
-
-error:
- if(!twin_open) {
- release_region(dev->base_addr, hw->io_extent);
- free_irq(dev->irq, (void *)dev);
- }
- return retval;
-
-}
-
-static int COMX_close(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *procfile = ch->procdir->subdir;
- struct comx_privdata *hw = ch->HW_privdata;
- struct comx_channel *twin_ch;
- struct net_device *savep;
-
- savep = ch->HW_access_board(dev);
-
- COMX_CMD(dev, COMX_CMD_CLOSE);
- udelay(1000);
- COMX_CMD(dev, COMX_CMD_EXIT);
-
- ch->HW_release_board(dev, savep);
-
- if (ch->init_status & IRQ_ALLOCATED) {
- free_irq(dev->irq, (void *)dev);
- ch->init_status &= ~IRQ_ALLOCATED;
- }
- release_region(dev->base_addr, hw->io_extent);
-
- if (ch->twin && (twin_ch = ch->twin->priv) &&
- (twin_ch->init_status & HW_OPEN)) {
- /* Pass the irq to the twin */
- if (request_irq(dev->irq, COMX_interrupt, 0, ch->twin->name,
- (void *)ch->twin) == 0) {
- twin_ch->init_status |= IRQ_ALLOCATED;
- }
- }
-
- for ( ; procfile ; procfile = procfile->next) {
- if (strcmp(procfile->name, FILENAME_IRQ) == 0
- || strcmp(procfile->name, FILENAME_IO) == 0
- || strcmp(procfile->name, FILENAME_MEMADDR) == 0
- || strcmp(procfile->name, FILENAME_CHANNEL) == 0
- || strcmp(procfile->name, FILENAME_FIRMWARE) == 0
- || strcmp(procfile->name, FILENAME_CLOCK) == 0) {
- procfile->mode = S_IFREG | 0644;
- }
- }
-
- ch->init_status &= ~HW_OPEN;
- return 0;
-}
-
-static int COMX_statistics(struct net_device *dev, char *page)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- struct net_device *savep;
- int len = 0;
-
- savep = ch->HW_access_board(dev);
-
- len += sprintf(page + len, "Board data: %s %s %s %s\nPBUFOVR: %02x, "
- "MODSTAT: %02x, LINKUP: %02x, DAV: %02x\nRxBUFP: %02x, "
- "TxEMPTY: %02x, TxBUFP: %02x\n",
- (ch->init_status & HW_OPEN) ? "HW_OPEN" : "",
- (ch->init_status & LINE_OPEN) ? "LINE_OPEN" : "",
- (ch->init_status & FW_LOADED) ? "FW_LOADED" : "",
- (ch->init_status & IRQ_ALLOCATED) ? "IRQ_ALLOCATED" : "",
- COMX_readw(dev, OFF_A_L1_PBUFOVR) & 0xff,
- (COMX_readw(dev, OFF_A_L1_PBUFOVR) >> 8) & 0xff,
- COMX_readw(dev, OFF_A_L2_LINKUP) & 0xff,
- COMX_readw(dev, OFF_A_L2_DAV) & 0xff,
- COMX_readw(dev, OFF_A_L2_RxBUFP) & 0xff,
- COMX_readw(dev, OFF_A_L2_TxEMPTY) & 0xff,
- COMX_readw(dev, OFF_A_L2_TxBUFP) & 0xff);
-
- len += sprintf(page + len, "hist[0]: %8lu hist[1]: %8lu hist[2]: %8lu\n"
- "hist[3]: %8lu hist[4]: %8lu\n",hw->histogram[0],hw->histogram[1],
- hw->histogram[2],hw->histogram[3],hw->histogram[4]);
-
- ch->HW_release_board(dev, savep);
-
- return len;
-}
-
-static int COMX_load_board(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- struct comx_firmware *fw = hw->firmware;
- word board_segment = dev->mem_start >> 16;
- int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
- unsigned long flags;
- unsigned char id1, id2;
- struct net_device *saved;
- int retval;
- int loopcount;
- int len;
- byte *COMX_address;
-
- if (!fw || !fw->len) {
- struct comx_channel *twin_ch = ch->twin ? ch->twin->priv : NULL;
- struct comx_privdata *twin_hw;
-
- if (!twin_ch || !(twin_hw = twin_ch->HW_privdata)) {
- return -EAGAIN;
- }
-
- if (!(fw = twin_hw->firmware) || !fw->len) {
- return -EAGAIN;
- }
- }
-
- id1 = fw->data[OFF_FW_L1_ID];
- id2 = fw->data[OFF_FW_L1_ID + 1];
-
- if (id1 != FW_L1_ID_1 || id2 != FW_L1_ID_2_COMX) {
- printk(KERN_ERR "%s: incorrect firmware, load aborted\n",
- dev->name);
- return -EAGAIN;
- }
-
- printk(KERN_INFO "%s: Loading COMX Layer 1 firmware %s\n", dev->name,
- (char *)(fw->data + OFF_FW_L1_ID + 2));
-
- id1 = fw->data[OFF_FW_L2_ID];
- id2 = fw->data[OFF_FW_L2_ID + 1];
- if (id1 == FW_L2_ID_1 && (id2 == 0xc0 || id2 == 0xc1 || id2 == 0xc2)) {
- printk(KERN_INFO "with Layer 2 code %s\n",
- (char *)(fw->data + OFF_FW_L2_ID + 2));
- }
-
- outb_p(board_segment | COMX_BOARD_RESET, dev->base_addr);
- /* 10 usec should be enough here */
- udelay(100);
-
- save_flags(flags); cli();
- saved=memory_used[mempos];
- if(saved) {
- ((struct comx_channel *)saved->priv)->HW_board_off(saved);
- }
- memory_used[mempos]=dev;
-
- outb_p(board_segment | COMX_ENABLE_BOARD_MEM, dev->base_addr);
-
- writeb(0, dev->mem_start + COMX_JAIL_OFFSET);
-
- loopcount=0;
- while(loopcount++ < 10000 &&
- readb(dev->mem_start + COMX_JAIL_OFFSET) != COMX_JAIL_VALUE) {
- udelay(100);
- }
-
- if (readb(dev->mem_start + COMX_JAIL_OFFSET) != COMX_JAIL_VALUE) {
- printk(KERN_ERR "%s: Can't reset board, JAIL value is %02x\n",
- dev->name, readb(dev->mem_start + COMX_JAIL_OFFSET));
- retval=-ENODEV;
- goto out;
- }
-
- writeb(0x55, dev->mem_start + 0x18ff);
-
- loopcount=0;
- while(loopcount++ < 10000 && readb(dev->mem_start + 0x18ff) != 0) {
- udelay(100);
- }
-
- if(readb(dev->mem_start + 0x18ff) != 0) {
- printk(KERN_ERR "%s: Can't reset board, reset timeout\n",
- dev->name);
- retval=-ENODEV;
- goto out;
- }
-
- len = 0;
- COMX_address = (byte *)dev->mem_start;
- while (fw->len > len) {
- writeb(fw->data[len++], COMX_address++);
- }
-
- len = 0;
- COMX_address = (byte *)dev->mem_start;
- while (len != fw->len && readb(COMX_address++) == fw->data[len]) {
- len++;
- }
-
- if (len != fw->len) {
- printk(KERN_ERR "%s: error loading firmware: [%d] is 0x%02x "
- "instead of 0x%02x\n", dev->name, len,
- readb(COMX_address - 1), fw->data[len]);
- retval=-EAGAIN;
- goto out;
- }
-
- writeb(0, dev->mem_start + COMX_JAIL_OFFSET);
-
- loopcount = 0;
- while ( loopcount++ < 10000 && COMX_readw(dev, OFF_A_L2_LINKUP) != 1 ) {
- udelay(100);
- }
-
- if (COMX_readw(dev, OFF_A_L2_LINKUP) != 1) {
- printk(KERN_ERR "%s: error starting firmware, linkup word is %04x\n",
- dev->name, COMX_readw(dev, OFF_A_L2_LINKUP));
- retval=-EAGAIN;
- goto out;
- }
-
-
- ch->init_status |= FW_LOADED;
- retval=0;
-
-out:
- outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
- if(saved) {
- ((struct comx_channel *)saved->priv)->HW_board_on(saved);
- }
- memory_used[mempos]=saved;
- restore_flags(flags);
- return retval;
-}
-
-static int CMX_load_board(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- struct comx_firmware *fw = hw->firmware;
- word board_segment = dev->mem_start >> 16;
- int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
- #if 0
- unsigned char id1, id2;
- #endif
- struct net_device *saved;
- unsigned long flags;
- int retval;
- int loopcount;
- int len;
- byte *COMX_address;
-
- if (!fw || !fw->len) {
- struct comx_channel *twin_ch = ch->twin ? ch->twin->priv : NULL;
- struct comx_privdata *twin_hw;
-
- if (!twin_ch || !(twin_hw = twin_ch->HW_privdata)) {
- return -EAGAIN;
- }
-
- if (!(fw = twin_hw->firmware) || !fw->len) {
- return -EAGAIN;
- }
- }
-
- /* Ide kell olyat tenni, hogy ellenorizze az ID-t */
-
- if (inb_p(dev->base_addr) != CMX_ID_BYTE) {
- printk(KERN_ERR "%s: CMX id byte is invalid(%02x)\n", dev->name,
- inb_p(dev->base_addr));
- return -ENODEV;
- }
-
- printk(KERN_INFO "%s: Loading CMX Layer 1 firmware %s\n", dev->name,
- (char *)(fw->data + OFF_FW_L1_ID + 2));
-
- save_flags(flags); cli();
- saved=memory_used[mempos];
- if(saved) {
- ((struct comx_channel *)saved->priv)->HW_board_off(saved);
- }
- memory_used[mempos]=dev;
-
- outb_p(board_segment | COMX_ENABLE_BOARD_MEM | COMX_BOARD_RESET,
- dev->base_addr);
-
- len = 0;
- COMX_address = (byte *)dev->mem_start;
- while (fw->len > len) {
- writeb(fw->data[len++], COMX_address++);
- }
-
- len = 0;
- COMX_address = (byte *)dev->mem_start;
- while (len != fw->len && readb(COMX_address++) == fw->data[len]) {
- len++;
- }
-
- outb_p(board_segment | COMX_ENABLE_BOARD_MEM, dev->base_addr);
-
- if (len != fw->len) {
- printk(KERN_ERR "%s: error loading firmware: [%d] is 0x%02x "
- "instead of 0x%02x\n", dev->name, len,
- readb(COMX_address - 1), fw->data[len]);
- retval=-EAGAIN;
- goto out;
- }
-
- loopcount=0;
- while( loopcount++ < 10000 && COMX_readw(dev, OFF_A_L2_LINKUP) != 1 ) {
- udelay(100);
- }
-
- if (COMX_readw(dev, OFF_A_L2_LINKUP) != 1) {
- printk(KERN_ERR "%s: error starting firmware, linkup word is %04x\n",
- dev->name, COMX_readw(dev, OFF_A_L2_LINKUP));
- retval=-EAGAIN;
- goto out;
- }
-
- ch->init_status |= FW_LOADED;
- retval=0;
-
-out:
- outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
- if(saved) {
- ((struct comx_channel *)saved->priv)->HW_board_on(saved);
- }
- memory_used[mempos]=saved;
- restore_flags(flags);
- return retval;
-}
-
-static int HICOMX_load_board(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- struct comx_firmware *fw = hw->firmware;
- word board_segment = dev->mem_start >> 12;
- int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
- struct net_device *saved;
- unsigned char id1, id2;
- unsigned long flags;
- int retval;
- int loopcount;
- int len;
- word *HICOMX_address;
- char id = 1;
-
- if (!fw || !fw->len) {
- struct comx_channel *twin_ch = ch->twin ? ch->twin->priv : NULL;
- struct comx_privdata *twin_hw;
-
- if (!twin_ch || !(twin_hw = twin_ch->HW_privdata)) {
- return -EAGAIN;
- }
-
- if (!(fw = twin_hw->firmware) || !fw->len) {
- return -EAGAIN;
- }
- }
-
- while (id != 4) {
- if (inb_p(dev->base_addr + id++) != HICOMX_ID_BYTE) {
- break;
- }
- }
-
- if (id != 4) {
- printk(KERN_ERR "%s: can't find HICOMX at 0x%04x, id[%d] = %02x\n",
- dev->name, (unsigned int)dev->base_addr, id - 1,
- inb_p(dev->base_addr + id - 1));
- return -1;
- }
-
- id1 = fw->data[OFF_FW_L1_ID];
- id2 = fw->data[OFF_FW_L1_ID + 1];
- if (id1 != FW_L1_ID_1 || id2 != FW_L1_ID_2_HICOMX) {
- printk(KERN_ERR "%s: incorrect firmware, load aborted\n", dev->name);
- return -EAGAIN;
- }
-
- printk(KERN_INFO "%s: Loading HICOMX Layer 1 firmware %s\n", dev->name,
- (char *)(fw->data + OFF_FW_L1_ID + 2));
-
- id1 = fw->data[OFF_FW_L2_ID];
- id2 = fw->data[OFF_FW_L2_ID + 1];
- if (id1 == FW_L2_ID_1 && (id2 == 0xc0 || id2 == 0xc1 || id2 == 0xc2)) {
- printk(KERN_INFO "with Layer 2 code %s\n",
- (char *)(fw->data + OFF_FW_L2_ID + 2));
- }
-
- outb_p(board_segment | HICOMX_BOARD_RESET, dev->base_addr);
- udelay(10);
-
- save_flags(flags); cli();
- saved=memory_used[mempos];
- if(saved) {
- ((struct comx_channel *)saved->priv)->HW_board_off(saved);
- }
- memory_used[mempos]=dev;
-
- outb_p(board_segment | HICOMX_ENABLE_BOARD_MEM, dev->base_addr);
- outb_p(HICOMX_PRG_MEM, dev->base_addr + 1);
-
- len = 0;
- HICOMX_address = (word *)dev->mem_start;
- while (fw->len > len) {
- writeb(fw->data[len++], HICOMX_address++);
- }
-
- len = 0;
- HICOMX_address = (word *)dev->mem_start;
- while (len != fw->len && (readw(HICOMX_address++) & 0xff) == fw->data[len]) {
- len++;
- }
-
- if (len != fw->len) {
- printk(KERN_ERR "%s: error loading firmware: [%d] is 0x%02x "
- "instead of 0x%02x\n", dev->name, len,
- readw(HICOMX_address - 1) & 0xff, fw->data[len]);
- retval=-EAGAIN;
- goto out;
- }
-
- outb_p(board_segment | HICOMX_BOARD_RESET, dev->base_addr);
- outb_p(HICOMX_DATA_MEM, dev->base_addr + 1);
-
- outb_p(board_segment | HICOMX_ENABLE_BOARD_MEM, dev->base_addr);
-
- loopcount=0;
- while(loopcount++ < 10000 && COMX_readw(dev, OFF_A_L2_LINKUP) != 1) {
- udelay(100);
- }
-
- if ( COMX_readw(dev, OFF_A_L2_LINKUP) != 1 ) {
- printk(KERN_ERR "%s: error starting firmware, linkup word is %04x\n",
- dev->name, COMX_readw(dev, OFF_A_L2_LINKUP));
- retval=-EAGAIN;
- goto out;
- }
-
- ch->init_status |= FW_LOADED;
- retval=0;
-
-out:
- outb_p(board_segment | HICOMX_DISABLE_ALL, dev->base_addr);
- outb_p(HICOMX_DATA_MEM, dev->base_addr + 1);
-
- if(saved) {
- ((struct comx_channel *)saved->priv)->HW_board_on(saved);
- }
- memory_used[mempos]=saved;
- restore_flags(flags);
- return retval;
-}
-
-static struct net_device *comx_twin_check(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *procfile = ch->procdir->parent->subdir;
- struct comx_privdata *hw = ch->HW_privdata;
-
- struct net_device *twin;
- struct comx_channel *ch_twin;
- struct comx_privdata *hw_twin;
-
-
- for ( ; procfile ; procfile = procfile->next) {
-
- if(!S_ISDIR(procfile->mode)) {
- continue;
- }
-
- twin=procfile->data;
- ch_twin=twin->priv;
- hw_twin=ch_twin->HW_privdata;
-
-
- if (twin != dev && dev->irq && dev->base_addr && dev->mem_start &&
- dev->irq == twin->irq && dev->base_addr == twin->base_addr &&
- dev->mem_start == twin->mem_start &&
- hw->channel == (1 - hw_twin->channel) &&
- ch->hardware == ch_twin->hardware) {
- return twin;
- }
- }
- return NULL;
-}
-
-static int comxhw_write_proc(struct file *file, const char *buffer,
- u_long count, void *data)
-{
- struct proc_dir_entry *entry = (struct proc_dir_entry *)data;
- struct net_device *dev = entry->parent->data;
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- char *page;
-
-
- if(ch->init_status & HW_OPEN) {
- return -EAGAIN;
- }
-
- if (strcmp(FILENAME_FIRMWARE, entry->name) != 0) {
- if (!(page = (char *)__get_free_page(GFP_KERNEL))) {
- return -ENOMEM;
- }
- if(copy_from_user(page, buffer, count = (min_t(int, count, PAGE_SIZE))))
- {
- count = -EFAULT;
- goto out;
- }
- if (page[count-1] == '\n')
- page[count-1] = '\0';
- else if (count < PAGE_SIZE)
- page[count] = '\0';
- else if (page[count]) {
- count = -EINVAL;
- goto out;
- }
- page[count]=0; /* Null terminate */
- } else {
- byte *tmp;
-
- if (!hw->firmware) {
- if ((hw->firmware = kmalloc(sizeof(struct comx_firmware),
- GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
- hw->firmware->len = 0;
- hw->firmware->data = NULL;
- }
-
- if ((tmp = kmalloc(count + file->f_pos, GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
-
- /* Ha nem 0 a fpos, akkor meglevo file-t irunk. Gyenge trukk. */
- if (hw->firmware && hw->firmware->len && file->f_pos
- && hw->firmware->len < count + file->f_pos) {
- memcpy(tmp, hw->firmware->data, hw->firmware->len);
- }
- if (hw->firmware->data) {
- kfree(hw->firmware->data);
- }
- if (copy_from_user(tmp + file->f_pos, buffer, count))
- return -EFAULT;
- hw->firmware->len = entry->size = file->f_pos + count;
- hw->firmware->data = tmp;
- file->f_pos += count;
- return count;
- }
-
- if (strcmp(entry->name, FILENAME_CHANNEL) == 0) {
- hw->channel = simple_strtoul(page, NULL, 0);
- if (hw->channel >= MAX_CHANNELNO) {
- printk(KERN_ERR "Invalid channel number\n");
- hw->channel = 0;
- }
- if ((ch->twin = comx_twin_check(dev)) != NULL) {
- struct comx_channel *twin_ch = ch->twin->priv;
- twin_ch->twin = dev;
- }
- } else if (strcmp(entry->name, FILENAME_IRQ) == 0) {
- dev->irq = simple_strtoul(page, NULL, 0);
- if (dev->irq == 2) {
- dev->irq = 9;
- }
- if (dev->irq < 3 || dev->irq > 15) {
- printk(KERN_ERR "comxhw: Invalid irq number\n");
- dev->irq = 0;
- }
- if ((ch->twin = comx_twin_check(dev)) != NULL) {
- struct comx_channel *twin_ch = ch->twin->priv;
- twin_ch->twin = dev;
- }
- } else if (strcmp(entry->name, FILENAME_IO) == 0) {
- dev->base_addr = simple_strtoul(page, NULL, 0);
- if ((dev->base_addr & 3) != 0 || dev->base_addr < 0x300
- || dev->base_addr > 0x3fc) {
- printk(KERN_ERR "Invalid io value\n");
- dev->base_addr = 0;
- }
- if ((ch->twin = comx_twin_check(dev)) != NULL) {
- struct comx_channel *twin_ch = ch->twin->priv;
-
- twin_ch->twin = dev;
- }
- } else if (strcmp(entry->name, FILENAME_MEMADDR) == 0) {
- dev->mem_start = simple_strtoul(page, NULL, 0);
- if (dev->mem_start <= 0xf000 && dev->mem_start >= 0xa000) {
- dev->mem_start *= 16;
- }
- if ((dev->mem_start & 0xfff) != 0 || dev->mem_start < COMX_MEM_MIN
- || dev->mem_start + hw->memory_size > COMX_MEM_MAX) {
- printk(KERN_ERR "Invalid memory page\n");
- dev->mem_start = 0;
- }
- dev->mem_end = dev->mem_start + hw->memory_size;
- if ((ch->twin = comx_twin_check(dev)) != NULL) {
- struct comx_channel *twin_ch = ch->twin->priv;
-
- twin_ch->twin = dev;
- }
- } else if (strcmp(entry->name, FILENAME_CLOCK) == 0) {
- if (strncmp("ext", page, 3) == 0) {
- hw->clock = 0;
- } else {
- int kbps;
-
- kbps = simple_strtoul(page, NULL, 0);
- hw->clock = kbps ? COMX_CLOCK_CONST/kbps : 0;
- }
- }
-out:
- free_page((unsigned long)page);
- return count;
-}
-
-static int comxhw_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct proc_dir_entry *file = (struct proc_dir_entry *)data;
- struct net_device *dev = file->parent->data;
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
- int len = 0;
-
-
- if (strcmp(file->name, FILENAME_IO) == 0) {
- len = sprintf(page, "0x%03x\n", (unsigned int)dev->base_addr);
- } else if (strcmp(file->name, FILENAME_IRQ) == 0) {
- len = sprintf(page, "0x%02x\n", dev->irq == 9 ? 2 : dev->irq);
- } else if (strcmp(file->name, FILENAME_CHANNEL) == 0) {
- len = sprintf(page, "%01d\n", hw->channel);
- } else if (strcmp(file->name, FILENAME_MEMADDR) == 0) {
- len = sprintf(page, "0x%05x\n", (unsigned int)dev->mem_start);
- } else if (strcmp(file->name, FILENAME_TWIN) == 0) {
- len = sprintf(page, "%s\n", ch->twin ? ch->twin->name : "none");
- } else if (strcmp(file->name, FILENAME_CLOCK) == 0) {
- if (hw->clock) {
- len = sprintf(page, "%-8d\n", COMX_CLOCK_CONST/hw->clock);
- } else {
- len = sprintf(page, "external\n");
- }
- } else if (strcmp(file->name, FILENAME_FIRMWARE) == 0) {
- len = min_t(int, FILE_PAGESIZE,
- min_t(int, count,
- hw->firmware ?
- (hw->firmware->len - off) : 0));
- if (len < 0) {
- len = 0;
- }
- *start = hw->firmware ? (hw->firmware->data + off) : NULL;
- if (off + len >= (hw->firmware ? hw->firmware->len : 0) || len == 0) {
- *eof = 1;
- }
- return len;
- }
-
- if (off >= len) {
- *eof = 1;
- return 0;
- }
-
- *start = page + off;
- if (count >= len - off) {
- *eof = 1;
- }
- return min_t(int, count, len - off);
-}
-
-/* Called on echo comx >boardtype */
-static int COMX_init(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw;
- struct proc_dir_entry *new_file;
-
- if ((ch->HW_privdata = kmalloc(sizeof(struct comx_privdata),
- GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
- memset(hw = ch->HW_privdata, 0, sizeof(struct comx_privdata));
-
- if (ch->hardware == &comx_hw || ch->hardware == &cmx_hw) {
- hw->memory_size = COMX_MEMORY_SIZE;
- hw->io_extent = COMX_IO_EXTENT;
- dev->base_addr = COMX_DEFAULT_IO;
- dev->irq = COMX_DEFAULT_IRQ;
- dev->mem_start = COMX_DEFAULT_MEMADDR;
- dev->mem_end = COMX_DEFAULT_MEMADDR + COMX_MEMORY_SIZE;
- } else if (ch->hardware == &hicomx_hw) {
- hw->memory_size = HICOMX_MEMORY_SIZE;
- hw->io_extent = HICOMX_IO_EXTENT;
- dev->base_addr = HICOMX_DEFAULT_IO;
- dev->irq = HICOMX_DEFAULT_IRQ;
- dev->mem_start = HICOMX_DEFAULT_MEMADDR;
- dev->mem_end = HICOMX_DEFAULT_MEMADDR + HICOMX_MEMORY_SIZE;
- } else {
- printk(KERN_ERR "SERIOUS INTERNAL ERROR in %s, line %d\n", __FILE__, __LINE__);
- }
-
- if ((new_file = create_proc_entry(FILENAME_IO, S_IFREG | 0644, ch->procdir))
- == NULL) {
- goto cleanup_HW_privdata;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &comxhw_read_proc;
- new_file->write_proc = &comxhw_write_proc;
- new_file->size = 6;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_IRQ, S_IFREG | 0644, ch->procdir))
- == NULL) {
- goto cleanup_filename_io;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &comxhw_read_proc;
- new_file->write_proc = &comxhw_write_proc;
- new_file->size = 5;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_CHANNEL, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_irq;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &comxhw_read_proc;
- new_file->write_proc = &comxhw_write_proc;
- new_file->size = 2; // Ezt tudjuk
- new_file->nlink = 1;
-
- if (ch->hardware == &hicomx_hw || ch->hardware == &cmx_hw) {
- if ((new_file = create_proc_entry(FILENAME_CLOCK, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_channel;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &comxhw_read_proc;
- new_file->write_proc = &comxhw_write_proc;
- new_file->size = 9;
- new_file->nlink = 1;
- }
-
- if ((new_file = create_proc_entry(FILENAME_MEMADDR, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_clock;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &comxhw_read_proc;
- new_file->write_proc = &comxhw_write_proc;
- new_file->size = 8;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_TWIN, S_IFREG | 0444,
- ch->procdir)) == NULL) {
- goto cleanup_filename_memaddr;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &comxhw_read_proc;
- new_file->write_proc = NULL;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_FIRMWARE, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_twin;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &comxhw_read_proc;
- new_file->write_proc = &comxhw_write_proc;
- new_file->nlink = 1;
-
- if (ch->hardware == &comx_hw) {
- ch->HW_board_on = COMX_board_on;
- ch->HW_board_off = COMX_board_off;
- ch->HW_load_board = COMX_load_board;
- } else if (ch->hardware == &cmx_hw) {
- ch->HW_board_on = COMX_board_on;
- ch->HW_board_off = COMX_board_off;
- ch->HW_load_board = CMX_load_board;
- ch->HW_set_clock = COMX_set_clock;
- } else if (ch->hardware == &hicomx_hw) {
- ch->HW_board_on = HICOMX_board_on;
- ch->HW_board_off = HICOMX_board_off;
- ch->HW_load_board = HICOMX_load_board;
- ch->HW_set_clock = COMX_set_clock;
- } else {
- printk(KERN_ERR "SERIOUS INTERNAL ERROR in %s, line %d\n", __FILE__, __LINE__);
- }
-
- ch->HW_access_board = COMX_access_board;
- ch->HW_release_board = COMX_release_board;
- ch->HW_txe = COMX_txe;
- ch->HW_open = COMX_open;
- ch->HW_close = COMX_close;
- ch->HW_send_packet = COMX_send_packet;
- ch->HW_statistics = COMX_statistics;
-
- if ((ch->twin = comx_twin_check(dev)) != NULL) {
- struct comx_channel *twin_ch = ch->twin->priv;
-
- twin_ch->twin = dev;
- }
-
- MOD_INC_USE_COUNT;
- return 0;
-
-cleanup_filename_twin:
- remove_proc_entry(FILENAME_TWIN, ch->procdir);
-cleanup_filename_memaddr:
- remove_proc_entry(FILENAME_MEMADDR, ch->procdir);
-cleanup_filename_clock:
- if (ch->hardware == &hicomx_hw || ch->hardware == &cmx_hw)
- remove_proc_entry(FILENAME_CLOCK, ch->procdir);
-cleanup_filename_channel:
- remove_proc_entry(FILENAME_CHANNEL, ch->procdir);
-cleanup_filename_irq:
- remove_proc_entry(FILENAME_IRQ, ch->procdir);
-cleanup_filename_io:
- remove_proc_entry(FILENAME_IO, ch->procdir);
-cleanup_HW_privdata:
- kfree(ch->HW_privdata);
- return -EIO;
-}
-
-/* Called on echo valami >boardtype */
-static int COMX_exit(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_privdata *hw = ch->HW_privdata;
-
- if (hw->firmware) {
- if (hw->firmware->data) kfree(hw->firmware->data);
- kfree(hw->firmware);
- } if (ch->twin) {
- struct comx_channel *twin_ch = ch->twin->priv;
-
- twin_ch->twin = NULL;
- }
-
- kfree(ch->HW_privdata);
- remove_proc_entry(FILENAME_IO, ch->procdir);
- remove_proc_entry(FILENAME_IRQ, ch->procdir);
- remove_proc_entry(FILENAME_CHANNEL, ch->procdir);
- remove_proc_entry(FILENAME_MEMADDR, ch->procdir);
- remove_proc_entry(FILENAME_FIRMWARE, ch->procdir);
- remove_proc_entry(FILENAME_TWIN, ch->procdir);
- if (ch->hardware == &hicomx_hw || ch->hardware == &cmx_hw) {
- remove_proc_entry(FILENAME_CLOCK, ch->procdir);
- }
-
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static int COMX_dump(struct net_device *dev)
-{
- printk(KERN_INFO "%s: COMX_dump called, why ?\n", dev->name);
- return 0;
-}
-
-static struct comx_hardware comx_hw = {
- "comx",
- VERSION,
- COMX_init,
- COMX_exit,
- COMX_dump,
- NULL
-};
-
-static struct comx_hardware cmx_hw = {
- "cmx",
- VERSION,
- COMX_init,
- COMX_exit,
- COMX_dump,
- NULL
-};
-
-static struct comx_hardware hicomx_hw = {
- "hicomx",
- VERSION,
- COMX_init,
- COMX_exit,
- COMX_dump,
- NULL
-};
-
-static int __init comx_hw_comx_init(void)
-{
- comx_register_hardware(&comx_hw);
- comx_register_hardware(&cmx_hw);
- comx_register_hardware(&hicomx_hw);
- return 0;
-}
-
-static void __exit comx_hw_comx_exit(void)
-{
- comx_unregister_hardware("comx");
- comx_unregister_hardware("cmx");
- comx_unregister_hardware("hicomx");
-}
-
-module_init(comx_hw_comx_init);
-module_exit(comx_hw_comx_exit);
+++ /dev/null
-/*
- * Hardware driver for the LoCOMX card, using the generic z85230
- * functions
- *
- * Author: Gergely Madarasz <gorgo@itc.hu>
- *
- * Based on skeleton code and old LoCOMX driver by Tivadar Szemethy <tiv@itc.hu>
- * and the hostess_sv11 driver
- *
- * Contributors:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> (0.14)
- *
- * Copyright (C) 1999 ITConsult-Pro Co. <info@itc.hu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Version 0.10 (99/06/17):
- * - rewritten for the z85230 layer
- *
- * Version 0.11 (99/06/21):
- * - some printk's fixed
- * - get rid of a memory leak (it was impossible though :))
- *
- * Version 0.12 (99/07/07):
- * - check CTS for modem lines, not DCD (which is always high
- * in case of this board)
- * Version 0.13 (99/07/08):
- * - Fix the transmitter status check
- * - Handle the net device statistics better
- * Version 0.14 (00/08/15):
- * - resource release on failure at LOCOMX_init
- */
-
-#define VERSION "0.14"
-
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-
-#include <asm/types.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#include "comx.h"
-#include "z85230.h"
-
-MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>");
-MODULE_DESCRIPTION("Hardware driver for the LoCOMX board");
-MODULE_LICENSE("GPL");
-
-#define RX_DMA 3
-#define TX_DMA 1
-#define LOCOMX_ID 0x33
-#define LOCOMX_IO_EXTENT 8
-#define LOCOMX_DEFAULT_IO 0x368
-#define LOCOMX_DEFAULT_IRQ 7
-
-u8 z8530_locomx[] = {
- 11, TCRTxCP,
- 14, DTRREQ,
- 255
-};
-
-struct locomx_data {
- int io_extent;
- struct z8530_dev board;
- struct timer_list status_timer;
-};
-
-static int LOCOMX_txe(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct locomx_data *hw = ch->HW_privdata;
-
- return (!hw->board.chanA.tx_next_skb);
-}
-
-
-static void locomx_rx(struct z8530_channel *c, struct sk_buff *skb)
-{
- struct net_device *dev = c->netdevice;
- struct comx_channel *ch = netdev_priv(dev);
-
- if (ch->debug_flags & DEBUG_HW_RX) {
- comx_debug_skb(dev, skb, "locomx_rx receiving");
- }
- ch->LINE_rx(dev,skb);
-}
-
-static int LOCOMX_send_packet(struct net_device *dev, struct sk_buff *skb)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct locomx_data *hw = ch->HW_privdata;
-
- if (ch->debug_flags & DEBUG_HW_TX) {
- comx_debug_bytes(dev, skb->data, skb->len, "LOCOMX_send_packet");
- }
-
- if (!(ch->line_status & LINE_UP)) {
- return FRAME_DROPPED;
- }
-
- if(z8530_queue_xmit(&hw->board.chanA,skb)) {
- printk(KERN_WARNING "%s: FRAME_DROPPED\n",dev->name);
- return FRAME_DROPPED;
- }
-
- if (ch->debug_flags & DEBUG_HW_TX) {
- comx_debug(dev, "%s: LOCOMX_send_packet was successful\n\n", dev->name);
- }
-
- if(!hw->board.chanA.tx_next_skb) {
- return FRAME_QUEUED;
- } else {
- return FRAME_ACCEPTED;
- }
-}
-
-static void locomx_status_timerfun(unsigned long d)
-{
- struct net_device *dev = (struct net_device *)d;
- struct comx_channel *ch = netdev_priv(dev);
- struct locomx_data *hw = ch->HW_privdata;
-
- if(!(ch->line_status & LINE_UP) &&
- (hw->board.chanA.status & CTS)) {
- ch->LINE_status(dev, ch->line_status | LINE_UP);
- }
- if((ch->line_status & LINE_UP) &&
- !(hw->board.chanA.status & CTS)) {
- ch->LINE_status(dev, ch->line_status & ~LINE_UP);
- }
- mod_timer(&hw->status_timer,jiffies + ch->lineup_delay * HZ);
-}
-
-
-static int LOCOMX_open(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct locomx_data *hw = ch->HW_privdata;
- struct proc_dir_entry *procfile = ch->procdir->subdir;
- unsigned long flags;
- int ret;
-
- if (!dev->base_addr || !dev->irq) {
- return -ENODEV;
- }
-
- if (!request_region(dev->base_addr, hw->io_extent, dev->name)) {
- return -EAGAIN;
- }
-
- hw->board.chanA.ctrlio=dev->base_addr + 5;
- hw->board.chanA.dataio=dev->base_addr + 7;
-
- hw->board.irq=dev->irq;
- hw->board.chanA.netdevice=dev;
- hw->board.chanA.dev=&hw->board;
- hw->board.name=dev->name;
- hw->board.chanA.txdma=TX_DMA;
- hw->board.chanA.rxdma=RX_DMA;
- hw->board.chanA.irqs=&z8530_nop;
- hw->board.chanB.irqs=&z8530_nop;
-
- if(request_irq(dev->irq, z8530_interrupt, SA_INTERRUPT,
- dev->name, &hw->board)) {
- printk(KERN_ERR "%s: unable to obtain irq %d\n", dev->name,
- dev->irq);
- ret=-EAGAIN;
- goto irq_fail;
- }
- if(request_dma(TX_DMA,"LoCOMX (TX)")) {
- printk(KERN_ERR "%s: unable to obtain TX DMA (DMA channel %d)\n",
- dev->name, TX_DMA);
- ret=-EAGAIN;
- goto dma1_fail;
- }
-
- if(request_dma(RX_DMA,"LoCOMX (RX)")) {
- printk(KERN_ERR "%s: unable to obtain RX DMA (DMA channel %d)\n",
- dev->name, RX_DMA);
- ret=-EAGAIN;
- goto dma2_fail;
- }
-
- save_flags(flags);
- cli();
-
- if(z8530_init(&hw->board)!=0)
- {
- printk(KERN_ERR "%s: Z8530 device not found.\n",dev->name);
- ret=-ENODEV;
- goto z8530_fail;
- }
-
- hw->board.chanA.dcdcheck=CTS;
-
- z8530_channel_load(&hw->board.chanA, z8530_hdlc_kilostream_85230);
- z8530_channel_load(&hw->board.chanA, z8530_locomx);
- z8530_channel_load(&hw->board.chanB, z8530_dead_port);
-
- z8530_describe(&hw->board, "I/O", dev->base_addr);
-
- if((ret=z8530_sync_dma_open(dev, &hw->board.chanA))!=0) {
- goto z8530_fail;
- }
-
- restore_flags(flags);
-
-
- hw->board.active=1;
- hw->board.chanA.rx_function=locomx_rx;
-
- ch->init_status |= HW_OPEN;
- if (hw->board.chanA.status & DCD) {
- ch->line_status |= LINE_UP;
- } else {
- ch->line_status &= ~LINE_UP;
- }
-
- comx_status(dev, ch->line_status);
-
- init_timer(&hw->status_timer);
- hw->status_timer.function=locomx_status_timerfun;
- hw->status_timer.data=(unsigned long)dev;
- hw->status_timer.expires=jiffies + ch->lineup_delay * HZ;
- add_timer(&hw->status_timer);
-
- for (; procfile ; procfile = procfile->next) {
- if (strcmp(procfile->name, FILENAME_IO) == 0 ||
- strcmp(procfile->name, FILENAME_IRQ) == 0) {
- procfile->mode = S_IFREG | 0444;
- }
- }
- return 0;
-
-z8530_fail:
- restore_flags(flags);
- free_dma(RX_DMA);
-dma2_fail:
- free_dma(TX_DMA);
-dma1_fail:
- free_irq(dev->irq, &hw->board);
-irq_fail:
- release_region(dev->base_addr, hw->io_extent);
- return ret;
-}
-
-static int LOCOMX_close(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct locomx_data *hw = ch->HW_privdata;
- struct proc_dir_entry *procfile = ch->procdir->subdir;
-
- hw->board.chanA.rx_function=z8530_null_rx;
- netif_stop_queue(dev);
- z8530_sync_dma_close(dev, &hw->board.chanA);
-
- z8530_shutdown(&hw->board);
-
- del_timer(&hw->status_timer);
- free_dma(RX_DMA);
- free_dma(TX_DMA);
- free_irq(dev->irq,&hw->board);
- release_region(dev->base_addr,8);
-
- for (; procfile ; procfile = procfile->next) {
- if (strcmp(procfile->name, FILENAME_IO) == 0 ||
- strcmp(procfile->name, FILENAME_IRQ) == 0) {
- procfile->mode = S_IFREG | 0644;
- }
- }
-
- ch->init_status &= ~HW_OPEN;
- return 0;
-}
-
-static int LOCOMX_statistics(struct net_device *dev,char *page)
-{
- int len = 0;
-
- len += sprintf(page + len, "Hello\n");
-
- return len;
-}
-
-static int LOCOMX_dump(struct net_device *dev) {
- printk(KERN_INFO "LOCOMX_dump called\n");
- return(-1);
-}
-
-static int locomx_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct proc_dir_entry *file = (struct proc_dir_entry *)data;
- struct net_device *dev = file->parent->data;
- int len = 0;
-
- if (strcmp(file->name, FILENAME_IO) == 0) {
- len = sprintf(page, "0x%x\n", (unsigned int)dev->base_addr);
- } else if (strcmp(file->name, FILENAME_IRQ) == 0) {
- len = sprintf(page, "%d\n", (unsigned int)dev->irq);
- } else {
- printk(KERN_ERR "hw_read_proc: internal error, filename %s\n",
- file->name);
- return -EBADF;
- }
-
- if (off >= len) {
- *eof = 1;
- return 0;
- }
-
- *start = page + off;
- if (count >= len - off) {
- *eof = 1;
- }
- return min_t(int, count, len - off);
-}
-
-static int locomx_write_proc(struct file *file, const char *buffer,
- u_long count, void *data)
-{
- struct proc_dir_entry *entry = (struct proc_dir_entry *)data;
- struct net_device *dev = (struct net_device *)entry->parent->data;
- int val;
- char *page;
-
- if (!(page = (char *)__get_free_page(GFP_KERNEL))) {
- return -ENOMEM;
- }
-
- if (copy_from_user(page, buffer, count = min_t(unsigned long, count, PAGE_SIZE))) {
- free_page((unsigned long)page);
- return -EBADF;
- }
- if (*(page + count - 1) == '\n') {
- *(page + count - 1) = 0;
- }
-
- if (strcmp(entry->name, FILENAME_IO) == 0) {
- val = simple_strtoul(page, NULL, 0);
- if (val != 0x360 && val != 0x368 && val != 0x370 &&
- val != 0x378) {
- printk(KERN_ERR "LoCOMX: incorrect io address!\n");
- } else {
- dev->base_addr = val;
- }
- } else if (strcmp(entry->name, FILENAME_IRQ) == 0) {
- val = simple_strtoul(page, NULL, 0);
- if (val != 3 && val != 4 && val != 5 && val != 6 && val != 7) {
- printk(KERN_ERR "LoCOMX: incorrect irq value!\n");
- } else {
- dev->irq = val;
- }
- } else {
- printk(KERN_ERR "locomx_write_proc: internal error, filename %s\n",
- entry->name);
- free_page((unsigned long)page);
- return -EBADF;
- }
-
- free_page((unsigned long)page);
- return count;
-}
-
-
-
-static int LOCOMX_init(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct locomx_data *hw;
- struct proc_dir_entry *new_file;
-
- /* Alloc data for private structure */
- if ((ch->HW_privdata = kmalloc(sizeof(struct locomx_data),
- GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
-
- memset(hw = ch->HW_privdata, 0, sizeof(struct locomx_data));
- hw->io_extent = LOCOMX_IO_EXTENT;
-
- /* Register /proc files */
- if ((new_file = create_proc_entry(FILENAME_IO, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_HW_privdata;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &locomx_read_proc;
- new_file->write_proc = &locomx_write_proc;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_IRQ, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_io;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &locomx_read_proc;
- new_file->write_proc = &locomx_write_proc;
- new_file->nlink = 1;
-
-/* No clock yet */
-/*
- if ((new_file = create_proc_entry(FILENAME_CLOCK, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- return -EIO;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &locomx_read_proc;
- new_file->write_proc = &locomx_write_proc;
- new_file->nlink = 1;
-*/
-
- ch->HW_access_board = NULL;
- ch->HW_release_board = NULL;
- ch->HW_txe = LOCOMX_txe;
- ch->HW_open = LOCOMX_open;
- ch->HW_close = LOCOMX_close;
- ch->HW_send_packet = LOCOMX_send_packet;
- ch->HW_statistics = LOCOMX_statistics;
- ch->HW_set_clock = NULL;
-
- ch->current_stats = &hw->board.chanA.stats;
- memcpy(ch->current_stats, &ch->stats, sizeof(struct net_device_stats));
-
- dev->base_addr = LOCOMX_DEFAULT_IO;
- dev->irq = LOCOMX_DEFAULT_IRQ;
-
-
- /* O.K. Count one more user on this module */
- MOD_INC_USE_COUNT;
- return 0;
-cleanup_filename_io:
- remove_proc_entry(FILENAME_IO, ch->procdir);
-cleanup_HW_privdata:
- kfree(ch->HW_privdata);
- return -EIO;
-}
-
-
-static int LOCOMX_exit(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
-
- ch->HW_access_board = NULL;
- ch->HW_release_board = NULL;
- ch->HW_txe = NULL;
- ch->HW_open = NULL;
- ch->HW_close = NULL;
- ch->HW_send_packet = NULL;
- ch->HW_statistics = NULL;
- ch->HW_set_clock = NULL;
- memcpy(&ch->stats, ch->current_stats, sizeof(struct net_device_stats));
- ch->current_stats = &ch->stats;
-
- kfree(ch->HW_privdata);
-
- remove_proc_entry(FILENAME_IO, ch->procdir);
- remove_proc_entry(FILENAME_IRQ, ch->procdir);
-// remove_proc_entry(FILENAME_CLOCK, ch->procdir);
-
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static struct comx_hardware locomx_hw = {
- "locomx",
- VERSION,
- LOCOMX_init,
- LOCOMX_exit,
- LOCOMX_dump,
- NULL
-};
-
-static int __init comx_hw_locomx_init(void)
-{
- comx_register_hardware(&locomx_hw);
- return 0;
-}
-
-static void __exit comx_hw_locomx_exit(void)
-{
- comx_unregister_hardware("locomx");
-}
-
-module_init(comx_hw_locomx_init);
-module_exit(comx_hw_locomx_exit);
+++ /dev/null
-/*
- * Hardware driver for the MixCom synchronous serial board
- *
- * Author: Gergely Madarasz <gorgo@itc.hu>
- *
- * based on skeleton driver code and a preliminary hscx driver by
- * Tivadar Szemethy <tiv@itc.hu>
- *
- * Copyright (C) 1998-1999 ITConsult-Pro Co. <info@itc.hu>
- *
- * Contributors:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> (0.65)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Version 0.60 (99/06/11):
- * - ported to the kernel, now works as builtin code
- *
- * Version 0.61 (99/06/11):
- * - recognize the one-channel MixCOM card (id byte = 0x13)
- * - printk fixes
- *
- * Version 0.62 (99/07/15):
- * - fixes according to the new hw docs
- * - report line status when open
- *
- * Version 0.63 (99/09/21):
- * - line status report fixes
- *
- * Version 0.64 (99/12/01):
- * - some more cosmetical fixes
- *
- * Version 0.65 (00/08/15)
- * - resource release on failure at MIXCOM_init
- */
-
-#define VERSION "0.65"
-
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-
-#include <asm/types.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-#include "comx.h"
-#include "mixcom.h"
-#include "hscx.h"
-
-MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>");
-MODULE_DESCRIPTION("Hardware-level driver for the serial port of the MixCom board");
-MODULE_LICENSE("GPL");
-
-#define MIXCOM_DATA(d) ((struct mixcom_privdata *)(COMX_CHANNEL(d)-> \
- HW_privdata))
-
-#define MIXCOM_BOARD_BASE(d) (d->base_addr - MIXCOM_SERIAL_OFFSET - \
- (1 - MIXCOM_DATA(d)->channel) * MIXCOM_CHANNEL_OFFSET)
-
-#define MIXCOM_DEV_BASE(port,channel) (port + MIXCOM_SERIAL_OFFSET + \
- (1 - channel) * MIXCOM_CHANNEL_OFFSET)
-
-/* Values used to set the IRQ line */
-static unsigned char mixcom_set_irq[]={0xFF, 0xFF, 0xFF, 0x0, 0xFF, 0x2, 0x4, 0x6, 0xFF, 0xFF, 0x8, 0xA, 0xC, 0xFF, 0xE, 0xFF};
-
-static unsigned char* hscx_versions[]={"A1", NULL, "A2", NULL, "A3", "2.1"};
-
-struct mixcom_privdata {
- u16 clock;
- char channel;
- long txbusy;
- struct sk_buff *sending;
- unsigned tx_ptr;
- struct sk_buff *recving;
- unsigned rx_ptr;
- unsigned char status;
- char card_has_status;
-};
-
-static inline void wr_hscx(struct net_device *dev, int reg, unsigned char val)
-{
- outb(val, dev->base_addr + reg);
-}
-
-static inline unsigned char rd_hscx(struct net_device *dev, int reg)
-{
- return inb(dev->base_addr + reg);
-}
-
-static inline void hscx_cmd(struct net_device *dev, int cmd)
-{
- unsigned long jiffs = jiffies;
- unsigned char cec;
- unsigned delay = 0;
-
- while ((cec = (rd_hscx(dev, HSCX_STAR) & HSCX_CEC) != 0) &&
- time_before(jiffies, jiffs + HZ)) {
- udelay(1);
- if (++delay > (100000 / HZ)) break;
- }
- if (cec) {
- printk(KERN_WARNING "%s: CEC stuck, probably no clock!\n",dev->name);
- } else {
- wr_hscx(dev, HSCX_CMDR, cmd);
- }
-}
-
-static inline void hscx_fill_fifo(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
- register word to_send = hw->sending->len - hw->tx_ptr;
-
-
- outsb(dev->base_addr + HSCX_FIFO,
- &(hw->sending->data[hw->tx_ptr]), min_t(unsigned int, to_send, 32));
- if (to_send <= 32) {
- hscx_cmd(dev, HSCX_XTF | HSCX_XME);
- kfree_skb(hw->sending);
- hw->sending = NULL;
- hw->tx_ptr = 0;
- } else {
- hscx_cmd(dev, HSCX_XTF);
- hw->tx_ptr += 32;
- }
-}
-
-static inline void hscx_empty_fifo(struct net_device *dev, int cnt)
-{
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
-
- if (hw->recving == NULL) {
- if (!(hw->recving = dev_alloc_skb(HSCX_MTU + 16))) {
- ch->stats.rx_dropped++;
- hscx_cmd(dev, HSCX_RHR);
- } else {
- skb_reserve(hw->recving, 16);
- skb_put(hw->recving, HSCX_MTU);
- }
- hw->rx_ptr = 0;
- }
- if (cnt > 32 || !cnt || hw->recving == NULL) {
- printk(KERN_ERR "hscx_empty_fifo: cnt is %d, hw->recving %p\n",
- cnt, (void *)hw->recving);
- return;
- }
-
- insb(dev->base_addr + HSCX_FIFO, &(hw->recving->data[hw->rx_ptr]),cnt);
- hw->rx_ptr += cnt;
- hscx_cmd(dev, HSCX_RMC);
-}
-
-
-static int MIXCOM_txe(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
-
- return !test_bit(0, &hw->txbusy);
-}
-
-static int mixcom_probe(struct net_device *dev)
-{
- unsigned long flags;
- int id, vstr, ret=0;
-
- save_flags(flags); cli();
-
- id=inb_p(MIXCOM_BOARD_BASE(dev) + MIXCOM_ID_OFFSET) & 0x7f;
-
- if (id != MIXCOM_ID ) {
- ret=-ENODEV;
- printk(KERN_WARNING "%s: no MixCOM board found at 0x%04lx\n",dev->name, dev->base_addr);
- goto out;
- }
-
- vstr=inb_p(dev->base_addr + HSCX_VSTR) & 0x0f;
- if(vstr>=sizeof(hscx_versions)/sizeof(char*) ||
- hscx_versions[vstr]==NULL) {
- printk(KERN_WARNING "%s: board found but no HSCX chip detected at 0x%4lx (vstr = 0x%1x)\n",dev->name,dev->base_addr,vstr);
- ret = -ENODEV;
- } else {
- printk(KERN_INFO "%s: HSCX chip version %s\n",dev->name,hscx_versions[vstr]);
- ret = 0;
- }
-
-out:
-
- restore_flags(flags);
- return ret;
-}
-
-#if 0
-static void MIXCOM_set_clock(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
-
- if (hw->clock) {
- ;
- } else {
- ;
- }
-}
-#endif
-
-static void mixcom_board_on(struct net_device *dev)
-{
- outb_p(MIXCOM_OFF , MIXCOM_BOARD_BASE(dev) + MIXCOM_IT_OFFSET);
- udelay(1000);
- outb_p(mixcom_set_irq[dev->irq] | MIXCOM_ON,
- MIXCOM_BOARD_BASE(dev) + MIXCOM_IT_OFFSET);
- udelay(1000);
-}
-
-static void mixcom_board_off(struct net_device *dev)
-{
- outb_p(MIXCOM_OFF , MIXCOM_BOARD_BASE(dev) + MIXCOM_IT_OFFSET);
- udelay(1000);
-}
-
-static void mixcom_off(struct net_device *dev)
-{
- wr_hscx(dev, HSCX_CCR1, 0x0);
-}
-
-static void mixcom_on(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- wr_hscx(dev, HSCX_CCR1, HSCX_PU | HSCX_ODS | HSCX_ITF); // power up, push-pull
- wr_hscx(dev, HSCX_CCR2, HSCX_CIE /* | HSCX_RIE */ );
- wr_hscx(dev, HSCX_MODE, HSCX_TRANS | HSCX_ADM8 | HSCX_RAC | HSCX_RTS );
- wr_hscx(dev, HSCX_RLCR, HSCX_RC | 47); // 1504 bytes
- wr_hscx(dev, HSCX_MASK, HSCX_RSC | HSCX_TIN );
- hscx_cmd(dev, HSCX_XRES | HSCX_RHR);
-
- if (ch->HW_set_clock) ch->HW_set_clock(dev);
-
-}
-
-static int MIXCOM_send_packet(struct net_device *dev, struct sk_buff *skb)
-{
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
- unsigned long flags;
-
- if (ch->debug_flags & DEBUG_HW_TX) {
- comx_debug_bytes(dev, skb->data, skb->len, "MIXCOM_send_packet");
- }
-
- if (!(ch->line_status & LINE_UP)) {
- return FRAME_DROPPED;
- }
-
- if (skb->len > HSCX_MTU) {
- ch->stats.tx_errors++;
- return FRAME_ERROR;
- }
-
- save_flags(flags); cli();
-
- if (test_and_set_bit(0, &hw->txbusy)) {
- printk(KERN_ERR "%s: transmitter called while busy... dropping frame (length %d)\n", dev->name, skb->len);
- restore_flags(flags);
- return FRAME_DROPPED;
- }
-
-
- hw->sending = skb;
- hw->tx_ptr = 0;
- hw->txbusy = 1;
-// atomic_inc(&skb->users); // save it
- hscx_fill_fifo(dev);
- restore_flags(flags);
-
- ch->stats.tx_packets++;
- ch->stats.tx_bytes += skb->len;
-
- if (ch->debug_flags & DEBUG_HW_TX) {
- comx_debug(dev, "MIXCOM_send_packet was successful\n\n");
- }
-
- return FRAME_ACCEPTED;
-}
-
-static inline void mixcom_receive_frame(struct net_device *dev)
-{
- struct comx_channel *ch=dev->priv;
- struct mixcom_privdata *hw=ch->HW_privdata;
- register byte rsta;
- register word length;
-
- rsta = rd_hscx(dev, HSCX_RSTA) & (HSCX_VFR | HSCX_RDO |
- HSCX_CRC | HSCX_RAB);
- length = ((rd_hscx(dev, HSCX_RBCH) & 0x0f) << 8) |
- rd_hscx(dev, HSCX_RBCL);
-
- if ( length > hw->rx_ptr ) {
- hscx_empty_fifo(dev, length - hw->rx_ptr);
- }
-
- if (!(rsta & HSCX_VFR)) {
- ch->stats.rx_length_errors++;
- }
- if (rsta & HSCX_RDO) {
- ch->stats.rx_over_errors++;
- }
- if (!(rsta & HSCX_CRC)) {
- ch->stats.rx_crc_errors++;
- }
- if (rsta & HSCX_RAB) {
- ch->stats.rx_frame_errors++;
- }
- ch->stats.rx_packets++;
- ch->stats.rx_bytes += length;
-
- if (rsta == (HSCX_VFR | HSCX_CRC) && hw->recving) {
- skb_trim(hw->recving, hw->rx_ptr - 1);
- if (ch->debug_flags & DEBUG_HW_RX) {
- comx_debug_skb(dev, hw->recving,
- "MIXCOM_interrupt receiving");
- }
- hw->recving->dev = dev;
- if (ch->LINE_rx) {
- ch->LINE_rx(dev, hw->recving);
- }
- }
- else if(hw->recving) {
- kfree_skb(hw->recving);
- }
- hw->recving = NULL;
- hw->rx_ptr = 0;
-}
-
-
-static inline void mixcom_extended_interrupt(struct net_device *dev)
-{
- struct comx_channel *ch=dev->priv;
- struct mixcom_privdata *hw=ch->HW_privdata;
- register byte exir;
-
- exir = rd_hscx(dev, HSCX_EXIR) & (HSCX_XDU | HSCX_RFO | HSCX_CSC );
-
- if (exir & HSCX_RFO) {
- ch->stats.rx_over_errors++;
- if (hw->rx_ptr) {
- kfree_skb(hw->recving);
- hw->recving = NULL; hw->rx_ptr = 0;
- }
- printk(KERN_ERR "MIXCOM: rx overrun\n");
- hscx_cmd(dev, HSCX_RHR);
- }
-
- if (exir & HSCX_XDU) { // xmit underrun
- ch->stats.tx_errors++;
- ch->stats.tx_aborted_errors++;
- if (hw->tx_ptr) {
- kfree_skb(hw->sending);
- hw->sending = NULL;
- hw->tx_ptr = 0;
- }
- hscx_cmd(dev, HSCX_XRES);
- clear_bit(0, &hw->txbusy);
- if (ch->LINE_tx) {
- ch->LINE_tx(dev);
- }
- printk(KERN_ERR "MIXCOM: tx underrun\n");
- }
-
- if (exir & HSCX_CSC) {
- ch->stats.tx_carrier_errors++;
- if ((rd_hscx(dev, HSCX_STAR) & HSCX_CTS) == 0) { // Vonal le
- if (test_and_clear_bit(0, &ch->lineup_pending)) {
- del_timer(&ch->lineup_timer);
- } else if (ch->line_status & LINE_UP) {
- ch->line_status &= ~LINE_UP;
- if (ch->LINE_status) {
- ch->LINE_status(dev,ch->line_status);
- }
- }
- }
- if (!(ch->line_status & LINE_UP) && (rd_hscx(dev, HSCX_STAR) &
- HSCX_CTS)) { // Vonal fol
- if (!test_and_set_bit(0,&ch->lineup_pending)) {
- ch->lineup_timer.function = comx_lineup_func;
- ch->lineup_timer.data = (unsigned long)dev;
- ch->lineup_timer.expires = jiffies + HZ *
- ch->lineup_delay;
- add_timer(&ch->lineup_timer);
- hscx_cmd(dev, HSCX_XRES);
- clear_bit(0, &hw->txbusy);
- if (hw->sending) {
- kfree_skb(hw->sending);
- }
- hw->sending=NULL;
- hw->tx_ptr = 0;
- }
- }
- }
-}
-
-
-static irqreturn_t MIXCOM_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned long flags;
- struct net_device *dev = (struct net_device *)dev_id;
- struct comx_channel *ch, *twin_ch;
- struct mixcom_privdata *hw, *twin_hw;
- register unsigned char ista;
-
- if (dev==NULL) {
- printk(KERN_ERR "comx_interrupt: irq %d for unknown device\n",irq);
- return IRQ_NONE;
- }
-
- ch = dev->priv;
- hw = ch->HW_privdata;
-
- save_flags(flags); cli();
-
- while((ista = (rd_hscx(dev, HSCX_ISTA) & (HSCX_RME | HSCX_RPF |
- HSCX_XPR | HSCX_EXB | HSCX_EXA | HSCX_ICA)))) {
- register byte ista2 = 0;
-
- if (ista & HSCX_RME) {
- mixcom_receive_frame(dev);
- }
- if (ista & HSCX_RPF) {
- hscx_empty_fifo(dev, 32);
- }
- if (ista & HSCX_XPR) {
- if (hw->tx_ptr) {
- hscx_fill_fifo(dev);
- } else {
- clear_bit(0, &hw->txbusy);
- ch->LINE_tx(dev);
- }
- }
-
- if (ista & HSCX_EXB) {
- mixcom_extended_interrupt(dev);
- }
-
- if ((ista & HSCX_EXA) && ch->twin) {
- mixcom_extended_interrupt(ch->twin);
- }
-
- if ((ista & HSCX_ICA) && ch->twin &&
- (ista2 = rd_hscx(ch->twin, HSCX_ISTA) &
- (HSCX_RME | HSCX_RPF | HSCX_XPR ))) {
- if (ista2 & HSCX_RME) {
- mixcom_receive_frame(ch->twin);
- }
- if (ista2 & HSCX_RPF) {
- hscx_empty_fifo(ch->twin, 32);
- }
- if (ista2 & HSCX_XPR) {
- twin_ch=ch->twin->priv;
- twin_hw=twin_ch->HW_privdata;
- if (twin_hw->tx_ptr) {
- hscx_fill_fifo(ch->twin);
- } else {
- clear_bit(0, &twin_hw->txbusy);
- ch->LINE_tx(ch->twin);
- }
- }
- }
- }
-
- restore_flags(flags);
- return IRQ_HANDLED;
-}
-
-static int MIXCOM_open(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
- struct proc_dir_entry *procfile = ch->procdir->subdir;
- unsigned long flags;
- int ret = -ENODEV;
-
- if (!dev->base_addr || !dev->irq)
- goto err_ret;
-
-
- if(hw->channel==1) {
- if(!TWIN(dev) || !(COMX_CHANNEL(TWIN(dev))->init_status &
- IRQ_ALLOCATED)) {
- printk(KERN_ERR "%s: channel 0 not yet initialized\n",dev->name);
- ret = -EAGAIN;
- goto err_ret;
- }
- }
-
-
- /* Is our hw present at all ? Not checking for channel 0 if it is already
- open */
- if(hw->channel!=0 || !(ch->init_status & IRQ_ALLOCATED)) {
- if (!request_region(dev->base_addr, MIXCOM_IO_EXTENT, dev->name)) {
- ret = -EAGAIN;
- goto err_ret;
- }
- if (mixcom_probe(dev)) {
- ret = -ENODEV;
- goto err_release_region;
- }
- }
-
- if(hw->channel==0 && !(ch->init_status & IRQ_ALLOCATED)) {
- if (request_irq(dev->irq, MIXCOM_interrupt, 0,
- dev->name, (void *)dev)) {
- printk(KERN_ERR "MIXCOM: unable to obtain irq %d\n", dev->irq);
- ret = -EAGAIN;
- goto err_release_region;
- }
- }
-
- save_flags(flags); cli();
-
- if(hw->channel==0 && !(ch->init_status & IRQ_ALLOCATED)) {
- ch->init_status|=IRQ_ALLOCATED;
- mixcom_board_on(dev);
- }
-
- mixcom_on(dev);
-
-
- hw->status=inb(MIXCOM_BOARD_BASE(dev) + MIXCOM_STATUS_OFFSET);
- if(hw->status != 0xff) {
- printk(KERN_DEBUG "%s: board has status register, good\n", dev->name);
- hw->card_has_status=1;
- }
-
- hw->txbusy = 0;
- ch->init_status |= HW_OPEN;
-
- if (rd_hscx(dev, HSCX_STAR) & HSCX_CTS) {
- ch->line_status |= LINE_UP;
- } else {
- ch->line_status &= ~LINE_UP;
- }
-
- restore_flags(flags);
-
- ch->LINE_status(dev, ch->line_status);
-
- for (; procfile ; procfile = procfile->next) {
- if (strcmp(procfile->name, FILENAME_IO) == 0 ||
- strcmp(procfile->name, FILENAME_CHANNEL) == 0 ||
- strcmp(procfile->name, FILENAME_CLOCK) == 0 ||
- strcmp(procfile->name, FILENAME_IRQ) == 0) {
- procfile->mode = S_IFREG | 0444;
- }
- }
-
- return 0;
-
-err_release_region:
- release_region(dev->base_addr, MIXCOM_IO_EXTENT);
-err_ret:
- return ret;
-}
-
-static int MIXCOM_close(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
- struct proc_dir_entry *procfile = ch->procdir->subdir;
- unsigned long flags;
-
-
- save_flags(flags); cli();
-
- mixcom_off(dev);
-
- /* This is channel 0, twin is not open, we can safely turn off everything */
- if(hw->channel==0 && (!(TWIN(dev)) ||
- !(COMX_CHANNEL(TWIN(dev))->init_status & HW_OPEN))) {
- mixcom_board_off(dev);
- free_irq(dev->irq, dev);
- release_region(dev->base_addr, MIXCOM_IO_EXTENT);
- ch->init_status &= ~IRQ_ALLOCATED;
- }
-
- /* This is channel 1, channel 0 has already been shutdown, we can release
- this one too */
- if(hw->channel==1 && !(COMX_CHANNEL(TWIN(dev))->init_status & HW_OPEN)) {
- if(COMX_CHANNEL(TWIN(dev))->init_status & IRQ_ALLOCATED) {
- mixcom_board_off(TWIN(dev));
- free_irq(TWIN(dev)->irq, TWIN(dev));
- release_region(TWIN(dev)->base_addr, MIXCOM_IO_EXTENT);
- COMX_CHANNEL(TWIN(dev))->init_status &= ~IRQ_ALLOCATED;
- }
- }
-
- /* the ioports for channel 1 can be safely released */
- if(hw->channel==1) {
- release_region(dev->base_addr, MIXCOM_IO_EXTENT);
- }
-
- restore_flags(flags);
-
- /* If we don't hold any hardware open */
- if(!(ch->init_status & IRQ_ALLOCATED)) {
- for (; procfile ; procfile = procfile->next) {
- if (strcmp(procfile->name, FILENAME_IO) == 0 ||
- strcmp(procfile->name, FILENAME_CHANNEL) == 0 ||
- strcmp(procfile->name, FILENAME_CLOCK) == 0 ||
- strcmp(procfile->name, FILENAME_IRQ) == 0) {
- procfile->mode = S_IFREG | 0644;
- }
- }
- }
-
- /* channel 0 was only waiting for us to close channel 1
- close it completely */
-
- if(hw->channel==1 && !(COMX_CHANNEL(TWIN(dev))->init_status & HW_OPEN)) {
- for (procfile=COMX_CHANNEL(TWIN(dev))->procdir->subdir;
- procfile ; procfile = procfile->next) {
- if (strcmp(procfile->name, FILENAME_IO) == 0 ||
- strcmp(procfile->name, FILENAME_CHANNEL) == 0 ||
- strcmp(procfile->name, FILENAME_CLOCK) == 0 ||
- strcmp(procfile->name, FILENAME_IRQ) == 0) {
- procfile->mode = S_IFREG | 0644;
- }
- }
- }
-
- ch->init_status &= ~HW_OPEN;
- return 0;
-}
-
-static int MIXCOM_statistics(struct net_device *dev,char *page)
-{
- struct comx_channel *ch = dev->priv;
- // struct mixcom_privdata *hw = ch->HW_privdata;
- int len = 0;
-
- if(ch->init_status && IRQ_ALLOCATED) {
- len += sprintf(page + len, "Mixcom board: hardware open\n");
- }
-
- return len;
-}
-
-static int MIXCOM_dump(struct net_device *dev) {
- return 0;
-}
-
-static int mixcom_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct proc_dir_entry *file = (struct proc_dir_entry *)data;
- struct net_device *dev = file->parent->data;
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
- int len = 0;
-
- if (strcmp(file->name, FILENAME_IO) == 0) {
- len = sprintf(page, "0x%x\n",
- (unsigned int)MIXCOM_BOARD_BASE(dev));
- } else if (strcmp(file->name, FILENAME_IRQ) == 0) {
- len = sprintf(page, "%d\n", (unsigned int)dev->irq);
- } else if (strcmp(file->name, FILENAME_CLOCK) == 0) {
- if (hw->clock) len = sprintf(page, "%d\n", hw->clock);
- else len = sprintf(page, "external\n");
- } else if (strcmp(file->name, FILENAME_CHANNEL) == 0) {
- len = sprintf(page, "%01d\n", hw->channel);
- } else if (strcmp(file->name, FILENAME_TWIN) == 0) {
- if (ch->twin) {
- len = sprintf(page, "%s\n",ch->twin->name);
- } else {
- len = sprintf(page, "none\n");
- }
- } else {
- printk(KERN_ERR "mixcom_read_proc: internal error, filename %s\n", file->name);
- return -EBADF;
- }
-
- if (off >= len) {
- *eof = 1;
- return 0;
- }
- *start = page + off;
- if (count >= len - off) *eof = 1;
- return min_t(int, count, len - off);
-}
-
-
-static struct net_device *mixcom_twin_check(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *procfile = ch->procdir->parent->subdir;
- struct mixcom_privdata *hw = ch->HW_privdata;
-
- struct net_device *twin;
- struct comx_channel *ch_twin;
- struct mixcom_privdata *hw_twin;
-
-
- for ( ; procfile ; procfile = procfile->next) {
- if(!S_ISDIR(procfile->mode)) continue;
-
- twin = procfile->data;
- ch_twin = twin->priv;
- hw_twin = ch_twin->HW_privdata;
-
-
- if (twin != dev && dev->irq && dev->base_addr &&
- dev->irq == twin->irq &&
- ch->hardware == ch_twin->hardware &&
- dev->base_addr == twin->base_addr +
- (1-2*hw->channel)*MIXCOM_CHANNEL_OFFSET &&
- hw->channel == (1 - hw_twin->channel)) {
- if (!TWIN(twin) || TWIN(twin)==dev) {
- return twin;
- }
- }
- }
- return NULL;
-}
-
-
-static void setup_twin(struct net_device* dev)
-{
-
- if(TWIN(dev) && TWIN(TWIN(dev))) {
- TWIN(TWIN(dev))=NULL;
- }
- if ((TWIN(dev) = mixcom_twin_check(dev)) != NULL) {
- if (TWIN(TWIN(dev)) && TWIN(TWIN(dev)) != dev) {
- TWIN(dev)=NULL;
- } else {
- TWIN(TWIN(dev))=dev;
- }
- }
-}
-
-static int mixcom_write_proc(struct file *file, const char *buffer,
- u_long count, void *data)
-{
- struct proc_dir_entry *entry = (struct proc_dir_entry *)data;
- struct net_device *dev = (struct net_device *)entry->parent->data;
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
- char *page;
- int value;
-
- if (!(page = (char *)__get_free_page(GFP_KERNEL))) {
- return -ENOMEM;
- }
-
- if (copy_from_user(page, buffer, count = min_t(unsigned long, count, PAGE_SIZE))) {
- free_page((unsigned long)page);
- return -EFAULT;
- }
- if (*(page + count - 1) == '\n') {
- *(page + count - 1) = 0;
- }
-
- if (strcmp(entry->name, FILENAME_IO) == 0) {
- value = simple_strtoul(page, NULL, 0);
- if (value != 0x180 && value != 0x280 && value != 0x380) {
- printk(KERN_ERR "MIXCOM: incorrect io address!\n");
- } else {
- dev->base_addr = MIXCOM_DEV_BASE(value,hw->channel);
- }
- } else if (strcmp(entry->name, FILENAME_IRQ) == 0) {
- value = simple_strtoul(page, NULL, 0);
- if (value < 0 || value > 15 || mixcom_set_irq[value]==0xFF) {
- printk(KERN_ERR "MIXCOM: incorrect irq value!\n");
- } else {
- dev->irq = value;
- }
- } else if (strcmp(entry->name, FILENAME_CLOCK) == 0) {
- if (strncmp("ext", page, 3) == 0) {
- hw->clock = 0;
- } else {
- int kbps;
-
- kbps = simple_strtoul(page, NULL, 0);
- if (!kbps) {
- hw->clock = 0;
- } else {
- hw->clock = kbps;
- }
- if (hw->clock < 32 || hw->clock > 2000) {
- hw->clock = 0;
- printk(KERN_ERR "MIXCOM: invalid clock rate!\n");
- }
- }
- if (ch->init_status & HW_OPEN && ch->HW_set_clock) {
- ch->HW_set_clock(dev);
- }
- } else if (strcmp(entry->name, FILENAME_CHANNEL) == 0) {
- value = simple_strtoul(page, NULL, 0);
- if (value > 2) {
- printk(KERN_ERR "Invalid channel number\n");
- } else {
- dev->base_addr+=(hw->channel - value) * MIXCOM_CHANNEL_OFFSET;
- hw->channel = value;
- }
- } else {
- printk(KERN_ERR "hw_read_proc: internal error, filename %s\n",
- entry->name);
- return -EBADF;
- }
-
- setup_twin(dev);
-
- free_page((unsigned long)page);
- return count;
-}
-
-static int MIXCOM_init(struct net_device *dev) {
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw;
- struct proc_dir_entry *new_file;
-
- if ((ch->HW_privdata = kmalloc(sizeof(struct mixcom_privdata),
- GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
-
- memset(hw = ch->HW_privdata, 0, sizeof(struct mixcom_privdata));
-
- if ((new_file = create_proc_entry(FILENAME_IO, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_HW_privdata;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &mixcom_read_proc;
- new_file->write_proc = &mixcom_write_proc;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_IRQ, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_io;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &mixcom_read_proc;
- new_file->write_proc = &mixcom_write_proc;
- new_file->nlink = 1;
-
-#if 0
- if ((new_file = create_proc_entry(FILENAME_CLOCK, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- return -EIO;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &mixcom_read_proc;
- new_file->write_proc = &mixcom_write_proc;
- new_file->nlink = 1;
-#endif
-
- if ((new_file = create_proc_entry(FILENAME_CHANNEL, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_irq;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &mixcom_read_proc;
- new_file->write_proc = &mixcom_write_proc;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_TWIN, S_IFREG | 0444,
- ch->procdir)) == NULL) {
- goto cleanup_filename_channel;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &mixcom_read_proc;
- new_file->write_proc = &mixcom_write_proc;
- new_file->nlink = 1;
-
- setup_twin(dev);
-
- /* Fill in ch_struct hw specific pointers */
- ch->HW_access_board = NULL;
- ch->HW_release_board = NULL;
- ch->HW_txe = MIXCOM_txe;
- ch->HW_open = MIXCOM_open;
- ch->HW_close = MIXCOM_close;
- ch->HW_send_packet = MIXCOM_send_packet;
- ch->HW_statistics = MIXCOM_statistics;
- ch->HW_set_clock = NULL;
-
- dev->base_addr = MIXCOM_DEV_BASE(MIXCOM_DEFAULT_IO,0);
- dev->irq = MIXCOM_DEFAULT_IRQ;
-
- MOD_INC_USE_COUNT;
- return 0;
-cleanup_filename_channel:
- remove_proc_entry(FILENAME_CHANNEL, ch->procdir);
-cleanup_filename_irq:
- remove_proc_entry(FILENAME_IRQ, ch->procdir);
-cleanup_filename_io:
- remove_proc_entry(FILENAME_IO, ch->procdir);
-cleanup_HW_privdata:
- kfree(ch->HW_privdata);
- return -EIO;
-}
-
-static int MIXCOM_exit(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct mixcom_privdata *hw = ch->HW_privdata;
-
- if(hw->channel==0 && TWIN(dev)) {
- return -EBUSY;
- }
-
- if(hw->channel==1 && TWIN(dev)) {
- TWIN(TWIN(dev))=NULL;
- }
-
- kfree(ch->HW_privdata);
- remove_proc_entry(FILENAME_IO, ch->procdir);
- remove_proc_entry(FILENAME_IRQ, ch->procdir);
-#if 0
- remove_proc_entry(FILENAME_CLOCK, ch->procdir);
-#endif
- remove_proc_entry(FILENAME_CHANNEL, ch->procdir);
- remove_proc_entry(FILENAME_TWIN, ch->procdir);
-
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static struct comx_hardware mixcomhw = {
- "mixcom",
- VERSION,
- MIXCOM_init,
- MIXCOM_exit,
- MIXCOM_dump,
- NULL
-};
-
-static int __init comx_hw_mixcom_init(void)
-{
- return comx_register_hardware(&mixcomhw);
-}
-
-static void __exit comx_hw_mixcom_exit(void)
-{
- comx_unregister_hardware("mixcom");
-}
-
-module_init(comx_hw_mixcom_init);
-module_exit(comx_hw_mixcom_exit);
+++ /dev/null
-/*
- * Hardware-level driver for the SliceCOM board for Linux kernels 2.4.X
- *
- * Current maintainer / latest changes: Pasztor Szilard <don@itc.hu>
- *
- * Original author: Bartok Istvan <bartoki@itc.hu>
- * Based on skeleton by Tivadar Szemethy <tiv@itc.hu>
- *
- * 0.51:
- * - port for 2.4.x
- * - clean up some code, make it more portable
- * - busted direct hardware access through mapped memory
- * - fix a possible race
- * - prevent procfs buffer overflow
- *
- * 0.50:
- * - support for the pcicom board, lots of rearrangements
- * - handle modem status lines
- *
- * 0.50a:
- * - fix for falc version 1.0
- *
- * 0.50b: T&t
- * - fix for bad localbus
- */
-
-#define VERSION "0.51"
-#define VERSIONSTR "SliceCOM v" VERSION ", 2002/01/07\n"
-
-#include <linux/config.h>
-#include <linux/ctype.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-
-#include <asm/delay.h>
-#include <asm/types.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-#define COMX_NEW
-
-#ifndef COMX_NEW
-#include "../include/comx.h"
-#include "../include/munich32x.h"
-#include "../include/falc-lh.h"
-#else
-#include "comx.h"
-#include "munich32x.h"
-#include "falc-lh.h"
-#endif
-
-MODULE_AUTHOR("Bartok Istvan <bartoki@itc.hu>, Gergely Madarasz <gorgo@itc.hu>, Szilard Pasztor <don@itc.hu>");
-MODULE_DESCRIPTION("Hardware-level driver for the SliceCOM and PciCOM (WelCOM) adapters");
-MODULE_LICENSE("GPL");
-/*
- * TODO: az ilyenek a comxhw.h -ban szoktak lenni, idovel menjenek majd oda:
- */
-
-#define FILENAME_BOARDNUM "boardnum" /* /proc/comx/comx0.1/boardnum */
-#define FILENAME_TIMESLOTS "timeslots" /* /proc/comx/comx0.1/timeslots */
-#define FILENAME_FRAMING "framing" /* /proc/comx/comx0.1/framing */
-#define FILENAME_LINECODE "linecode" /* /proc/comx/comx0.1/linecode */
-#define FILENAME_CLOCK_SOURCE "clock_source" /* /proc/comx/comx0.1/clock_source */
-#define FILENAME_LOOPBACK "loopback" /* /proc/comx/comx0.1/loopback */
-#define FILENAME_REG "reg" /* /proc/comx/comx0.1/reg */
-#define FILENAME_LBIREG "lbireg" /* /proc/comx/comx0.1/lbireg */
-
-#define SLICECOM_BOARDNUM_DEFAULT 0
-
-#define SLICECOM_FRAMING_CRC4 1
-#define SLICECOM_FRAMING_NO_CRC4 2
-#define SLICECOM_FRAMING_DEFAULT SLICECOM_FRAMING_CRC4
-
-#define SLICECOM_LINECODE_HDB3 1
-#define SLICECOM_LINECODE_AMI 2
-#define SLICECOM_LINECODE_DEFAULT SLICECOM_LINECODE_HDB3
-
-#define SLICECOM_CLOCK_SOURCE_LINE 1
-#define SLICECOM_CLOCK_SOURCE_INTERNAL 2
-#define SLICECOM_CLOCK_SOURCE_DEFAULT SLICECOM_CLOCK_SOURCE_LINE
-
-#define SLICECOM_LOOPBACK_NONE 1
-#define SLICECOM_LOOPBACK_LOCAL 2
-#define SLICECOM_LOOPBACK_REMOTE 3
-#define SLICECOM_LOOPBACK_DEFAULT SLICECOM_LOOPBACK_NONE
-
-#define MUNICH_VIRT(addr) (void *)(&bar1[addr])
-
-struct slicecom_stringtable
-{
- char *name;
- int value;
-};
-
-/* A convention: keep "default" the last not NULL when reading from /proc,
- "error" is an indication that something went wrong, we have an undefined value */
-
-struct slicecom_stringtable slicecom_framings[] =
-{
- {"crc4", SLICECOM_FRAMING_CRC4},
- {"no-crc4", SLICECOM_FRAMING_NO_CRC4},
- {"default", SLICECOM_FRAMING_DEFAULT},
- {"error", 0}
-};
-
-struct slicecom_stringtable slicecom_linecodes[] =
-{
- {"hdb3", SLICECOM_LINECODE_HDB3},
- {"ami", SLICECOM_LINECODE_AMI},
- {"default", SLICECOM_LINECODE_DEFAULT},
- {"error", 0}
-};
-
-struct slicecom_stringtable slicecom_clock_sources[] =
-{
- {"line", SLICECOM_CLOCK_SOURCE_LINE},
- {"internal", SLICECOM_CLOCK_SOURCE_INTERNAL},
- {"default", SLICECOM_CLOCK_SOURCE_DEFAULT},
- {"error", 0}
-};
-
-struct slicecom_stringtable slicecom_loopbacks[] =
-{
- {"none", SLICECOM_LOOPBACK_NONE},
- {"local", SLICECOM_LOOPBACK_LOCAL},
- {"remote", SLICECOM_LOOPBACK_REMOTE},
- {"default", SLICECOM_LOOPBACK_DEFAULT},
- {"error", 0}
-};
-
-/*
- * Some tunable values...
- *
- * Note: when tuning values which change the length of text in
- * /proc/comx/comx[n]/status, keep in mind that it must be shorter then
- * PAGESIZE !
- */
-
-#define MAX_BOARDS 4 /* ezzel 4 kartya lehet a gepben: 0..3 */
-#define RX_DESC_MAX 8 /* Rx ring size, must be >= 4 */
-#define TX_DESC_MAX 4 /* Tx ring size, must be >= 2 */
- /* a sokkal hosszabb Tx ring mar ronthatja a nem-FIFO packet */
- /* schedulerek (fair queueing, stb.) hatekonysagat. */
-#define MAX_WORK 10 /* TOD: update the info max. ennyi-1 esemenyt dolgoz fel egy interrupt hivasnal */
-
-/*
- * These are tunable too, but don't touch them without fully understanding what is happening
- */
-
-#define UDELAY 20 /* We wait UDELAY usecs with disabled interrupts before and */
- /* after each command to avoid writing into each other's */
- /* ccb->action_spec. A _send_packet nem var, mert azt az */
- /* _interrupt()-bol is meghivhatja a LINE_tx() */
-
-/*
- * Just to avoid warnings about implicit declarations:
- */
-
-static int MUNICH_close(struct net_device *dev);
-static struct comx_hardware slicecomhw;
-static struct comx_hardware pcicomhw;
-
-static unsigned long flags;
-static spinlock_t mister_lock = SPIN_LOCK_UNLOCKED;
-
-typedef volatile struct /* Time Slot Assignment */
-{
- u32 rxfillmask:8, // ----------------------------+------+
- // | |
- rxchannel:5, // ----------------------+---+ | |
- rti:1, // ---------------------+| | | |
- res2:2, // -------------------++|| | | |
- // |||| | | |
- txfillmask:8, // ----------+------+ |||| | | |
- // | | |||| | | |
- txchannel:5, // ----+---+ | | |||| | | |
- tti:1, // ---+| | | | |||| | | |
- res1:2; // -++|| | | | |||| | | |
- // 3 2 1
- // 10987654 32109876 54321098 76543210
-} timeslot_spec_t;
-
-typedef volatile struct /* Receive Descriptor */
-{
- u32 zero1:16, no:13, hi:1, hold:1, zero2:1;
-
- u32 next;
- u32 data;
-
- u32 zero3:8, status:8, bno:13, zero4:1, c:1, fe:1;
-} rx_desc_t;
-
-typedef volatile struct /* Transmit Descriptor */
-{
- u32 fnum:11, csm:1, no13:1, zero1:2, v110:1, no:13, hi:1, hold:1, fe:1;
-
- u32 next;
- u32 data;
-
-} tx_desc_t;
-
-typedef volatile struct /* Channel Specification */
-{
- u32 iftf:1, mode:2, fa:1, trv:2, crc:1, inv:1, cs:1, tflag:7, ra:1, ro:1,
- th:1, ta:1, to:1, ti:1, ri:1, nitbs:1, fit:1, fir:1, re:1, te:1, ch:1,
- ifc:1, sfe:1, fe2:1;
-
- u32 frda;
- u32 ftda;
-
- u32 itbs:6, zero1:26;
-
-} channel_spec_t;
-
-typedef volatile struct /* Configuration Control Block */
-{
- u32 action_spec;
- u32 reserved1;
- u32 reserved2;
- timeslot_spec_t timeslot_spec[32];
- channel_spec_t channel_spec[32];
- u32 current_rx_desc[32];
- u32 current_tx_desc[32];
- u32 csa; /* Control Start Address. CSA = *CCBA; CCB = *CSA */
- /* MUNICH does it like: CCB = *( *CCBA ) */
-} munich_ccb_t;
-
-typedef volatile struct /* Entry in the interrupt queue */
-{
- u32 all;
-} munich_intq_t;
-
-#define MUNICH_INTQLEN 63 /* Rx/Tx Interrupt Queue Length
- (not the real len, but the TIQL/RIQL value) */
-#define MUNICH_INTQMAX ( 16*(MUNICH_INTQLEN+1) ) /* Rx/Tx/Periph Interrupt Queue size in munich_intq_t's */
-#define MUNICH_INTQSIZE ( 4*MUNICH_INTQMAX ) /* Rx/Tx/Periph Interrupt Queue size in bytes */
-
-#define MUNICH_PIQLEN 4 /* Peripheral Interrupt Queue Length. Unlike the RIQL/TIQL, */
-#define MUNICH_PIQMAX ( 4*MUNICH_PIQLEN ) /* PIQL register needs it like this */
-#define MUNICH_PIQSIZE ( 4*MUNICH_PIQMAX )
-
-typedef volatile u32 vol_u32; /* TOD: ezek megszunnek ha atirom readw()/writew()-re - kész */
-typedef volatile u8 vol_u8;
-
-typedef volatile struct /* counters of E1-errors and errored seconds, see rfc2495 */
-{
- /* use here only unsigned ints, we depend on it when calculating the sum for the last N intervals */
-
- unsigned line_code_violations, /* AMI: bipolar violations, HDB3: hdb3 violations */
- path_code_violations, /* FAS errors and CRC4 errors */
- e_bit_errors, /* E-Bit Errors (the remote side received from us with CRC4-error) */
- slip_secs, /* number of seconds with (receive) Controlled Slip(s) */
- fr_loss_secs, /* number of seconds an Out Of Frame defect was detected */
- line_err_secs, /* number of seconds with one or more Line Code Violations */
- degraded_mins, /* Degraded Minute - the estimated error rate is >1E-6, but <1E-3 */
- errored_secs, /* Errored Second - at least one of these happened:
- - Path Code Violation
- - Out Of Frame defect
- - Slip
- - receiving AIS
- - not incremented during an Unavailable Second */
- bursty_err_secs, /* Bursty Errored Second: (rfc2495 says it does not apply to E1)
- - Path Code Violations >1, but <320
- - not a Severely Errored Second
- - no AIS
- - not incremented during an Unavailabla Second */
- severely_err_secs, /* Severely Errored Second:
- - CRC4: >=832 Path COde Violations || >0 Out Of Frame defects
- - noCRC4: >=2048 Line Code Violations
- - not incremented during an Unavailable Second */
- unavail_secs; /* number of Unavailable Seconds. Unavailable state is said after:
- - 10 contiguous Severely Errored Seconds
- - or RAI || AIS || LOF || LOS
- - (any) loopback has been set */
-
- /*
- * we do not strictly comply to the rfc: we do not retroactively reduce errored_secs,
- * bursty_err_secs, severely_err_secs when 'unavailable state' is reached
- */
-
-} e1_stats_t;
-
-typedef volatile struct /* ezek board-adatok, nem lehetnek a slicecom_privdata -ban */
-{
- int use_count; /* num. of interfaces using the board */
- int irq; /* a kartya irq-ja. belemasoljuk a dev->irq -kba is, de csak hogy */
- /* szebb legyen az ifconfig outputja */
- /* ha != 0, az azt jelenti hogy az az irq most nekunk sikeresen */
- /* le van foglalva */
- struct pci_dev *pci; /* a kartya PCI strukturaja. NULL, ha nincs kartya */
- u32 *bar1; /* pci->base_address[0] ioremap()-ed by munich_probe(), */
- /* on x86 can be used both as a bus or virtual address. */
- /* These are the Munich's registers */
- u8 *lbi; /* pci->base_address[1] ioremap()-ed by munich_probe(), */
- /* this is a 256-byte range, the start of the LBI on the board */
- munich_ccb_t *ccb; /* virtual address of CCB */
- munich_intq_t *tiq; /* Tx Interrupt Queue */
- munich_intq_t *riq; /* Rx Interrupt Queue */
- munich_intq_t *piq; /* Peripheral Interrupt Queue (FALC interrupts arrive here) */
- int tiq_ptr, /* A 'current' helyek a tiq/riq/piq -ban. */
- riq_ptr, /* amikor feldolgoztam az interruptokat, a legelso ures */
- piq_ptr; /* interrupt_information szora mutatnak. */
- struct net_device *twins[32]; /* MUNICH channel -> network interface assignment */
-
- unsigned long lastcheck; /* When were the Rx rings last checked. Time in jiffies */
-
- struct timer_list modemline_timer;
- char isx21;
- char lineup;
- char framing; /* a beallitasok tarolasa */
- char linecode;
- char clock_source;
- char loopback;
-
- char devname[30]; /* what to show in /proc/interrupts */
- unsigned histogram[MAX_WORK]; /* number of processed events in the interrupt loop */
- unsigned stat_pri_races; /* number of special events, we try to handle them */
- unsigned stat_pti_races;
- unsigned stat_pri_races_missed; /* when it can not be handled, because of MAX_WORK */
- unsigned stat_pti_races_missed;
-
-#define SLICECOM_BOARD_INTERVALS_SIZE 97
- e1_stats_t intervals[SLICECOM_BOARD_INTERVALS_SIZE]; /* E1 line statistics */
- unsigned current_interval; /* pointer to the current interval */
- unsigned elapsed_seconds; /* elapsed seconds from the start of the current interval */
- unsigned ses_seconds; /* counter of contiguous Severely Errored Seconds */
- unsigned is_unavailable; /* set to 1 after 10 contiguous Severely Errored Seconds */
- unsigned no_ses_seconds; /* contiguous Severely Error -free seconds in unavail state */
-
- unsigned deg_elapsed_seconds; /* for counting the 'Degraded Mins' */
- unsigned deg_cumulated_errors;
-
- struct module *owner; /* pointer to our module to avoid module load races */
-} munich_board_t;
-
-struct slicecom_privdata
-{
- int busy; /* transmitter busy - number of packets in the Tx ring */
- int channel; /* Munich logical channel ('channel-group' in Cisco) */
- unsigned boardnum;
- u32 timeslots; /* i-th bit means i-th timeslot is our */
-
- int tx_ring_hist[TX_DESC_MAX]; /* histogram: number of packets in Tx ring when _send_packet is called */
-
- tx_desc_t tx_desc[TX_DESC_MAX]; /* the ring of Tx descriptors */
- u8 tx_data[TX_DESC_MAX][TXBUFFER_SIZE]; /* buffers for data to transmit */
- int tx_desc_ptr; /* hanyadik descriptornal tartunk a beirassal */
- /* ahol ez all, oda irtunk utoljara */
-
- rx_desc_t rx_desc[RX_DESC_MAX]; /* the ring of Rx descriptors */
- u8 rx_data[RX_DESC_MAX][RXBUFFER_SIZE]; /* buffers for received data */
- int rx_desc_ptr; /* hanyadik descriptornal tartunk az olvasassal */
-
- int rafutott;
-};
-
-static u32 reg, reg_ertek; /* why static: don't write stack trash into regs if strtoul() fails */
-static u32 lbireg;
-static u8 lbireg_ertek; /* why static: don't write stack trash into regs if strtoul() fails */
-
-static munich_board_t slicecom_boards[MAX_BOARDS];
-static munich_board_t pcicom_boards[MAX_BOARDS];
-
-/*
- * Reprogram Idle Channel Registers in the FALC - send special code in not used channels
- * Should be called from the open and close, when the timeslot assignment changes
- */
-
-void rework_idle_channels(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw = ch->HW_privdata;
- munich_board_t *board = slicecom_boards + hw->boardnum;
- munich_ccb_t *ccb = board->ccb;
-
- u8 *lbi = board->lbi;
- int i, j, tmp;
-
-
- spin_lock_irqsave(&mister_lock, flags);
-
- for (i = 0; i < 4; i++)
- {
- tmp = 0xFF;
- for (j = 0; j < 8; j++)
- if (ccb->timeslot_spec[8 * i + j].tti == 0) tmp ^= (0x80 >> j);
- writeb(tmp, lbi + 0x30 + i);
- }
-
- spin_unlock_irqrestore(&mister_lock, flags);
-}
-
-/*
- * Set PCM framing - /proc/comx/comx0/framing
- */
-
-void slicecom_set_framing(int boardnum, int value)
-{
- u8 *lbi = slicecom_boards[boardnum].lbi;
-
- spin_lock_irqsave(&mister_lock, flags);
-
- slicecom_boards[boardnum].framing = value;
- switch (value)
- {
- case SLICECOM_FRAMING_CRC4:
- writeb(readb(lbi + FMR1) | 8, lbi + FMR1);
- writeb((readb(lbi + FMR2) & 0x3f) | 0x80, lbi + FMR2);
- break;
- case SLICECOM_FRAMING_NO_CRC4:
- writeb(readb(lbi + FMR1) & 0xf7, lbi + FMR1);
- writeb(readb(lbi + FMR2) & 0x3f, lbi + FMR2);
- break;
- default:
- printk("slicecom: board %d: unhandled " FILENAME_FRAMING
- " value %d\n", boardnum, value);
- }
-
- spin_unlock_irqrestore(&mister_lock, flags);
-}
-
-/*
- * Set PCM linecode - /proc/comx/comx0/linecode
- */
-
-void slicecom_set_linecode(int boardnum, int value)
-{
- u8 *lbi = slicecom_boards[boardnum].lbi;
-
- spin_lock_irqsave(&mister_lock, flags);
-
- slicecom_boards[boardnum].linecode = value;
- switch (value)
- {
- case SLICECOM_LINECODE_HDB3:
- writeb(readb(lbi + FMR0) | 0xf0, lbi + FMR0);
- break;
- case SLICECOM_LINECODE_AMI:
- writeb((readb(lbi + FMR0) & 0x0f) | 0xa0, lbi + FMR0);
- break;
- default:
- printk("slicecom: board %d: unhandled " FILENAME_LINECODE
- " value %d\n", boardnum, value);
- }
- spin_unlock_irqrestore(&mister_lock, flags);
-}
-
-/*
- * Set PCM clock source - /proc/comx/comx0/clock_source
- */
-
-void slicecom_set_clock_source(int boardnum, int value)
-{
- u8 *lbi = slicecom_boards[boardnum].lbi;
-
- spin_lock_irqsave(&mister_lock, flags);
-
- slicecom_boards[boardnum].clock_source = value;
- switch (value)
- {
- case SLICECOM_CLOCK_SOURCE_LINE:
- writeb(readb(lbi + LIM0) & ~1, lbi + LIM0);
- break;
- case SLICECOM_CLOCK_SOURCE_INTERNAL:
- writeb(readb(lbi + LIM0) | 1, lbi + LIM0);
- break;
- default:
- printk("slicecom: board %d: unhandled " FILENAME_CLOCK_SOURCE
- " value %d\n", boardnum, value);
- }
- spin_unlock_irqrestore(&mister_lock, flags);
-}
-
-/*
- * Set loopbacks - /proc/comx/comx0/loopback
- */
-
-void slicecom_set_loopback(int boardnum, int value)
-{
- u8 *lbi = slicecom_boards[boardnum].lbi;
-
- spin_lock_irqsave(&mister_lock, flags);
-
- slicecom_boards[boardnum].loopback = value;
- switch (value)
- {
- case SLICECOM_LOOPBACK_NONE:
- writeb(readb(lbi + LIM0) & ~2, lbi + LIM0); /* Local Loop OFF */
- writeb(readb(lbi + LIM1) & ~2, lbi + LIM1); /* Remote Loop OFF */
- break;
- case SLICECOM_LOOPBACK_LOCAL:
- writeb(readb(lbi + LIM1) & ~2, lbi + LIM1); /* Remote Loop OFF */
- writeb(readb(lbi + LIM0) | 2, lbi + LIM0); /* Local Loop ON */
- break;
- case SLICECOM_LOOPBACK_REMOTE:
- writeb(readb(lbi + LIM0) & ~2, lbi + LIM0); /* Local Loop OFF */
- writeb(readb(lbi + LIM1) | 2, lbi + LIM1); /* Remote Loop ON */
- break;
- default:
- printk("slicecom: board %d: unhandled " FILENAME_LOOPBACK
- " value %d\n", boardnum, value);
- }
- spin_unlock_irqrestore(&mister_lock, flags);
-}
-
-/*
- * Update E1 line status LEDs on the adapter
- */
-
-void slicecom_update_leds(munich_board_t * board)
-{
- u32 *bar1 = board->bar1;
- u8 *lbi = board->lbi;
- u8 frs0;
- u32 leds;
- int i;
-
- spin_lock_irqsave(&mister_lock, flags);
-
- leds = 0;
- frs0 = readb(lbi + FRS0); /* FRS0 bits described on page 137 */
-
- if (!(frs0 & 0xa0))
- {
- leds |= 0x2000; /* Green LED: Input signal seems to be OK, no LOS, no LFA */
- if (frs0 & 0x10)
- leds |= 0x8000; /* Red LED: Receiving Remote Alarm */
- }
- writel(leds, MUNICH_VIRT(GPDATA));
-
- if (leds == 0x2000 && !board->lineup)
- { /* line up */
- board->lineup = 1;
- for (i = 0; i < 32; i++)
- {
- if (board->twins[i] && (board->twins[i]->flags & IFF_RUNNING))
- {
- struct comx_channel *ch = board->twins[i]->priv;
-
- if (!test_and_set_bit(0, &ch->lineup_pending))
- {
- ch->lineup_timer.function = comx_lineup_func;
- ch->lineup_timer.data = (unsigned long)board->twins[i];
- ch->lineup_timer.expires = jiffies + HZ * ch->lineup_delay;
- add_timer(&ch->lineup_timer);
- }
- }
- }
- }
- else if (leds != 0x2000 && board->lineup)
- { /* line down */
- board->lineup = 0;
- for (i = 0; i < 32; i++)
- if (board->twins[i] && (board->twins[i]->flags & IFF_RUNNING))
- {
- struct comx_channel *ch = board->twins[i]->priv;
-
- if (test_and_clear_bit(0, &ch->lineup_pending))
- del_timer(&ch->lineup_timer);
- else if (ch->line_status & LINE_UP)
- {
- ch->line_status &= ~LINE_UP;
- if (ch->LINE_status)
- ch->LINE_status(board->twins[i], ch->line_status);
- }
- }
- }
- spin_unlock_irqrestore(&mister_lock, flags);
-}
-
-/*
- * This function gets called every second when the FALC issues the interrupt.
- * Hardware counters contain error counts for last 1-second time interval.
- * We add them to the global counters here.
- * Read rfc2495 to understand this.
- */
-
-void slicecom_update_line_counters(munich_board_t * board)
-{
- e1_stats_t *curr_int = &board->intervals[board->current_interval];
-
- u8 *lbi = board->lbi;
-
- unsigned framing_errors, code_violations, path_code_violations, crc4_errors,
- e_bit_errors;
- unsigned slip_detected, /* this one has logical value, not the number of slips! */
- out_of_frame_defect, /* logical value */
- ais_defect, /* logical value */
- errored_sec, bursty_err_sec, severely_err_sec = 0, failure_sec;
- u8 isr2, isr3, isr5, frs0;
-
- spin_lock_irqsave(&mister_lock, flags);
-
- isr2 = readb(lbi + ISR2); /* ISR0-5 described on page 156 */
- isr3 = readb(lbi + ISR3);
- isr5 = readb(lbi + ISR5);
- frs0 = readb(lbi + FRS0); /* FRS0 described on page 137 */
-
- /* Error Events: */
-
- code_violations = readb(lbi + CVCL) + (readb(lbi + CVCH) << 8);
- framing_errors = readb(lbi + FECL) + (readb(lbi + FECH) << 8);
- crc4_errors = readb(lbi + CEC1L) + (readb(lbi + CEC1H) << 8);
- e_bit_errors = readb(lbi + EBCL) + (readb(lbi + EBCH) << 8);
- slip_detected = isr3 & (ISR3_RSN | ISR3_RSP);
-
- path_code_violations = framing_errors + crc4_errors;
-
- curr_int->line_code_violations += code_violations;
- curr_int->path_code_violations += path_code_violations;
- curr_int->e_bit_errors += e_bit_errors;
-
- /* Performance Defects: */
-
- /* there was an LFA in the last second, but maybe disappeared: */
- out_of_frame_defect = (isr2 & ISR2_LFA) || (frs0 & FRS0_LFA);
-
- /* there was an AIS in the last second, but maybe disappeared: */
- ais_defect = (isr2 & ISR2_AIS) || (frs0 & FRS0_AIS);
-
- /* Performance Parameters: */
-
- if (out_of_frame_defect)
- curr_int->fr_loss_secs++;
- if (code_violations)
- curr_int->line_err_secs++;
-
- errored_sec = ((board->framing == SLICECOM_FRAMING_NO_CRC4) &&
- (code_violations)) || path_code_violations ||
- out_of_frame_defect || slip_detected || ais_defect;
-
- bursty_err_sec = !out_of_frame_defect && !ais_defect &&
- (path_code_violations > 1) && (path_code_violations < 320);
-
- switch (board->framing)
- {
- case SLICECOM_FRAMING_CRC4:
- severely_err_sec = out_of_frame_defect ||
- (path_code_violations >= 832);
- break;
- case SLICECOM_FRAMING_NO_CRC4:
- severely_err_sec = (code_violations >= 2048);
- break;
- }
-
- /*
- * failure_sec: true if there was a condition leading to a failure
- * (and leading to unavailable state) in this second:
- */
-
- failure_sec = (isr2 & ISR2_RA) || (frs0 & FRS0_RRA) /* Remote/Far End/Distant Alarm Failure */
- || ais_defect || out_of_frame_defect /* AIS or LOF Failure */
- || (isr2 & ISR2_LOS) || (frs0 & FRS0_LOS) /* Loss Of Signal Failure */
- || (board->loopback != SLICECOM_LOOPBACK_NONE); /* Loopback has been set */
-
- if (board->is_unavailable)
- {
- if (severely_err_sec)
- board->no_ses_seconds = 0;
- else
- board->no_ses_seconds++;
-
- if ((board->no_ses_seconds >= 10) && !failure_sec)
- {
- board->is_unavailable = 0;
- board->ses_seconds = 0;
- board->no_ses_seconds = 0;
- }
- }
- else
- {
- if (severely_err_sec)
- board->ses_seconds++;
- else
- board->ses_seconds = 0;
-
- if ((board->ses_seconds >= 10) || failure_sec)
- {
- board->is_unavailable = 1;
- board->ses_seconds = 0;
- board->no_ses_seconds = 0;
- }
- }
-
- if (board->is_unavailable)
- curr_int->unavail_secs++;
- else
- {
- if (slip_detected)
- curr_int->slip_secs++;
- curr_int->errored_secs += errored_sec;
- curr_int->bursty_err_secs += bursty_err_sec;
- curr_int->severely_err_secs += severely_err_sec;
- }
-
- /* the RFC does not say clearly which errors to count here, we try to count bit errors */
-
- if (!board->is_unavailable && !severely_err_sec)
- {
- board->deg_cumulated_errors += code_violations;
- board->deg_elapsed_seconds++;
- if (board->deg_elapsed_seconds >= 60)
- {
- if (board->deg_cumulated_errors >= 123)
- curr_int->degraded_mins++;
- board->deg_cumulated_errors = 0;
- board->deg_elapsed_seconds = 0;
- }
-
- }
-
- board->elapsed_seconds++;
- if (board->elapsed_seconds >= 900)
- {
- board->current_interval =
- (board->current_interval + 1) % SLICECOM_BOARD_INTERVALS_SIZE;
- memset((void *)&board->intervals[board->current_interval], 0,
- sizeof(e1_stats_t));
- board->elapsed_seconds = 0;
- }
-
- spin_unlock_irqrestore(&mister_lock, flags);
-}
-
-static void pcicom_modemline(unsigned long b)
-{
- munich_board_t *board = (munich_board_t *) b;
- struct net_device *dev = board->twins[0];
- struct comx_channel *ch = netdev_priv(dev);
- unsigned long regs;
-
- regs = readl((void *)(&board->bar1[GPDATA]));
- if ((ch->line_status & LINE_UP) && (regs & 0x0800))
- {
- ch->line_status &= ~LINE_UP;
- board->lineup = 0;
- if (ch->LINE_status)
- {
- ch->LINE_status(dev, ch->line_status);
- }
- }
-
- if (!(ch->line_status & LINE_UP) && !(regs & 0x0800))
- {
- ch->line_status |= LINE_UP;
- board->lineup = 1;
- if (ch->LINE_status)
- {
- ch->LINE_status(dev, ch->line_status);
- }
- }
-
- mod_timer((struct timer_list *)&board->modemline_timer, jiffies + HZ);
-}
-
-/*
- * Is it possible to transmit ?
- * Called (may be called) by the protocol layer
- */
-
-static int MUNICH_txe(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw = ch->HW_privdata;
-
- return (hw->busy < TX_DESC_MAX - 1);
-}
-
-/*
- * Hw probe function. Detects all the boards in the system,
- * and fills up slicecom_boards[] and pcicom_boards[]
- * Returns 0 on success.
- * We do not disable interrupts!
- */
-static int munich_probe(void)
-{
- struct pci_dev *pci;
- int boardnum;
- int slicecom_boardnum;
- int pcicom_boardnum;
- u32 *bar1;
- u8 *lbi;
- munich_board_t *board;
-
- for (boardnum = 0; boardnum < MAX_BOARDS; boardnum++)
- {
- pcicom_boards[boardnum].pci = 0;
- pcicom_boards[boardnum].bar1 = 0;
- pcicom_boards[boardnum].lbi = 0;
- slicecom_boards[boardnum].pci = 0;
- slicecom_boards[boardnum].bar1 = 0;
- slicecom_boards[boardnum].lbi = 0;
- }
-
- pci = NULL;
- board = NULL;
- slicecom_boardnum = 0;
- pcicom_boardnum = 0;
-
- for (boardnum = 0;
- boardnum < MAX_BOARDS && (pci = pci_find_device(PCI_VENDOR_ID_SIEMENS,
- PCI_DEVICE_ID_SIEMENS_MUNICH32X, pci)); boardnum++)
- {
- if (pci_enable_device(pci))
- continue;
-
- printk("munich_probe: munich chip found, IRQ %d\n", pci->irq);
-
- bar1 = ioremap_nocache(pci->resource[0].start, 0x100);
- lbi = ioremap_nocache(pci->resource[1].start, 0x100);
-
- if (bar1 && lbi)
- {
- pci_write_config_dword(pci, MUNICH_PCI_PCIRES, 0xe0000);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- pci_write_config_dword(pci, MUNICH_PCI_PCIRES, 0);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- /* check the type of the card */
- writel(LREG0_MAGIC, MUNICH_VIRT(LREG0));
- writel(LREG1_MAGIC, MUNICH_VIRT(LREG1));
- writel(LREG2_MAGIC, MUNICH_VIRT(LREG2));
- writel(LREG3_MAGIC, MUNICH_VIRT(LREG3));
- writel(LREG4_MAGIC, MUNICH_VIRT(LREG4));
- writel(LREG5_MAGIC, MUNICH_VIRT(LREG5));
- writel(LCONF_MAGIC2,MUNICH_VIRT(LCONF)); /* enable the DMSM */
-
- if ((readb(lbi + VSTR) == 0x13) || (readb(lbi + VSTR) == 0x10))
- {
- board = slicecom_boards + slicecom_boardnum;
- sprintf((char *)board->devname, "slicecom%d",
- slicecom_boardnum);
- board->isx21 = 0;
- slicecom_boardnum++;
- }
- else if ((readb(lbi + VSTR) == 0x6) || (readb(lbi + GIS) == 0x6))
- {
- board = pcicom_boards + pcicom_boardnum;
- sprintf((char *)board->devname, "pcicom%d", pcicom_boardnum);
- board->isx21 = 1;
- pcicom_boardnum++;
- }
- if (board)
- {
- printk("munich_probe: %s board found\n", board->devname);
- writel(LCONF_MAGIC1, MUNICH_VIRT(LCONF)); /* reset the DMSM */
- board->pci = pci;
- board->bar1 = bar1;
- board->lbi = lbi;
- board->framing = SLICECOM_FRAMING_DEFAULT;
- board->linecode = SLICECOM_LINECODE_DEFAULT;
- board->clock_source = SLICECOM_CLOCK_SOURCE_DEFAULT;
- board->loopback = SLICECOM_LOOPBACK_DEFAULT;
- board->owner = THIS_MODULE;
- }
- else
- {
- printk("munich_probe: Board error, VSTR: %02X\n",
- readb(lbi + VSTR));
- iounmap((void *)bar1);
- iounmap((void *)lbi);
- }
- }
- else
- {
- printk("munich_probe: ioremap() failed, not enabling this board!\n");
- /* .pci = NULL, so the MUNICH_open will not try to open it */
- if (bar1) iounmap((void *)bar1);
- if (lbi) iounmap((void *)lbi);
- }
- }
-
- if (!pci && !boardnum)
- {
- printk("munich_probe: no PCI present!\n");
- return -ENODEV;
- }
-
- if (pcicom_boardnum + slicecom_boardnum == 0)
- {
- printk
- ("munich_probe: Couldn't find any munich board: vendor:device %x:%x not found\n",
- PCI_VENDOR_ID_SIEMENS, PCI_DEVICE_ID_SIEMENS_MUNICH32X);
- return -ENODEV;
- }
-
- /* Found some */
- if (pcicom_boardnum)
- printk("%d pcicom board(s) found.\n", pcicom_boardnum);
- if (slicecom_boardnum)
- printk("%d slicecom board(s) found.\n", slicecom_boardnum);
-
- return 0;
-}
-
-/*
- * Reset the hardware. Get called only from within this module if needed.
- */
-#if 0
-static int slicecom_reset(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
-
- printk("slicecom_reset: resetting the hardware\n");
-
- /* Begin to reset the hardware */
-
- if (ch->HW_set_clock)
- ch->HW_set_clock(dev);
-
- /* And finish it */
-
- return 0;
-}
-#endif
-
-/*
- * Transmit a packet.
- * Called by the protocol layer
- * Return values:
- * FRAME_ACCEPTED: frame is being transmited, transmitter is busy
- * FRAME_QUEUED: frame is being transmitted, there's more room in
- * the transmitter for additional packet(s)
- * FRAME_ERROR:
- * FRAME_DROPPED: there was some error
- */
-
-static int MUNICH_send_packet(struct net_device *dev, struct sk_buff *skb)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw = ch->HW_privdata;
-
- /* Send it to the debug facility too if needed: */
-
- if (ch->debug_flags & DEBUG_HW_TX)
- comx_debug_bytes(dev, skb->data, skb->len, "MUNICH_send_packet");
-
- /* If the line is inactive, don't accept: */
-
- /* TODO: atgondolni hogy mi is legyen itt */
- /* if (!(ch->line_status & LINE_UP)) return FRAME_DROPPED; */
-
- /* More check, to be sure: */
-
- if (skb->len > TXBUFFER_SIZE)
- {
- ch->stats.tx_errors++;
- kfree_skb(skb);
- return FRAME_ERROR;
- }
-
- /* Maybe you have to disable irq's while programming the hw: */
-
- spin_lock_irqsave(&mister_lock, flags);
-
- /* And more check: */
-
- if (hw->busy >= TX_DESC_MAX - 1)
- {
- printk(KERN_ERR
- "%s: Transmitter called while busy... dropping frame, busy = %d\n",
- dev->name, hw->busy);
- spin_unlock_irqrestore(&mister_lock, flags);
- kfree_skb(skb);
- return FRAME_DROPPED;
- }
-
- if (hw->busy >= 0)
- hw->tx_ring_hist[hw->busy]++;
- /* DELL: */
- else
- printk("slicecom: %s: FATAL: busy = %d\n", dev->name, hw->busy);
-
-// /* DEL: */
-// printk("slicecom: %s: _send_packet called, busy = %d\n", dev->name, hw->busy );
-
- /* Packet can go, update stats: */
-
- ch->stats.tx_packets++;
- ch->stats.tx_bytes += skb->len;
-
- /* Pass the packet to the HW: */
- /* Step forward with the transmit descriptors: */
-
- hw->tx_desc_ptr = (hw->tx_desc_ptr + 1) % TX_DESC_MAX;
-
- memcpy(&(hw->tx_data[hw->tx_desc_ptr][0]), skb->data, skb->len);
- hw->tx_desc[hw->tx_desc_ptr].no = skb->len;
-
- /* We don't issue any command, just step with the HOLD bit */
-
- hw->tx_desc[hw->tx_desc_ptr].hold = 1;
- hw->tx_desc[(hw->tx_desc_ptr + TX_DESC_MAX - 1) % TX_DESC_MAX].hold = 0;
-
-#ifdef COMX_NEW
- dev_kfree_skb(skb);
-#endif
- /* csomag kerult a Tx ringbe: */
-
- hw->busy++;
-
- /* Report it: */
-
- if (ch->debug_flags & DEBUG_HW_TX)
- comx_debug(dev, "%s: MUNICH_send_packet was successful\n\n", dev->name);
-
- if (hw->busy >= TX_DESC_MAX - 1)
- {
- spin_unlock_irqrestore(&mister_lock, flags);
- return FRAME_ACCEPTED;
- }
-
- spin_unlock_irqrestore(&mister_lock, flags);
-
- /* All done */
-
- return FRAME_QUEUED;
-}
-
-/*
- * Interrupt handler routine.
- * Called by the Linux kernel.
- * BEWARE! The interrupts are enabled on the call!
- */
-static irqreturn_t MUNICH_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct sk_buff *skb;
- int length;
- int rx_status;
- int work; /* hany esemenyt kezeltem mar le */
- u32 *bar1;
- u8 *lbi;
- u32 stat, /* az esemenyek, amiket a ebben a loop korben le kell meg kezelni */
- race_stat = 0, /* race eseten ebben uzenek magamnak hogy mit kell meg lekezelni */
- ack; /* ezt fogom a vegen a STAT-ba irni, kiveszek belole 1-1 bitet ha */
-
- /* az adott dolgot nem kell ack-olni mert volt vele munkam, es */
- /* legjobb ha visszaterek ide megegyszer */
- munich_intq_t int_info;
-
- struct net_device *dev;
- struct comx_channel *ch;
- struct slicecom_privdata *hw;
- munich_board_t *board = (munich_board_t *) dev_id;
- int channel;
-
- // , boardnum = (int)dev_id;
-
- // board = munich_boards + boardnum;
- bar1 = board->bar1;
- lbi = board->lbi;
-
- // Do not uncomment this under heavy load! :->
- // printk("MUNICH_interrupt: masked STAT=0x%08x, tiq=0x%08x, riq=0x%08x, piq=0x%08x\n", stat, board->tiq[0].all, board->riq[0].all, board->piq[0].all );
-
- for (work = 0; (stat = (race_stat | (readl(MUNICH_VIRT(STAT)) & ~STAT_NOT_HANDLED_BY_INTERRUPT))) && (work < MAX_WORK - 1); work++)
- {
- ack = stat & (STAT_PRI | STAT_PTI | STAT_LBII);
-
- /* Handle the interrupt information in the Rx queue. We don't really trust */
- /* info from this queue, because it can be overflowed, so later check */
- /* every Rx ring for received packets. But there are some errors which can't */
- /* be counted from the Rx rings, so we parse it. */
-
- int_info = board->riq[board->riq_ptr];
- if (int_info.all & 0xF0000000) /* ha ez nem 0, akkor itt interrupt_info van */
- {
- ack &= ~STAT_PRI; /* don't ack the interrupt, we had some work to do */
-
- channel = PCM_INT_CHANNEL(int_info.all);
- dev = board->twins[channel];
-
- if (dev == NULL)
- {
- printk
- ("MUNICH_interrupt: got an Rx interrupt info for NULL device "
- "%s.twins[%d], int_info = 0x%08x\n", board->devname,
- channel, int_info.all);
- goto go_for_next_interrupt;
- }
-
- ch = netdev_priv(dev);
- hw = (struct slicecom_privdata *)ch->HW_privdata;
-
- // printk("Rx STAT=0x%08x int_info=0x%08x rx_desc_ptr=%d rx_desc.status=0x%01x\n",
- // stat, int_info.all, hw->rx_desc_ptr, hw->rx_desc[ hw->rx_desc_ptr ].status );
-
- if (int_info.all & PCM_INT_HI)
- printk("SliceCOM: %s: Host Initiated interrupt\n", dev->name);
- if (int_info.all & PCM_INT_IFC)
- printk("SliceCOM: %s: Idle/Flag Change\n", dev->name);
- /* TOD: jo ez az Idle/Flag Change valamire? - azonnal latszik belole hogy mikor ad a masik oldal */
- /* TOD: ilyen IT most nem is jon, mert ki van maszkolva az interrupt, biztosan kell ez? */
-
- if (int_info.all & PCM_INT_FO)
- /* Internal buffer (RB) overrun */
- ch->stats.rx_over_errors++; /* TOD: Ez azt jelenti hogy a belso RB nem volt hozzaferheto, es ezert kihagyott valamit. De nem csak csomag lehetett, hanem esemeny, stb. is. lasd page 247. Ezzel a 'cat status'-hoz igazodok, de a netdevice.h szerint nem egyertelmu hogy ide ez kellene. Nem lehet hogy rx_missed ? */
- /* DE: nem gotozok sehova, elvileg jo igy */
- /* kesobb meg visszaterek az FO-ra, ha packet-FO volt. Keresd a "packet-FO"-t. */
- if (int_info.all & PCM_INT_FI) /* frame received, but we do not trust the int_info queue */
- if (int_info.all & PCM_INT_SF)
- { /* Short Frame: rovidebb mint a CRC */
- /* "rovidebb mint CRC+2byte" vizsgalat a "CRC+2"-nel */
- ch->stats.rx_length_errors++; /* TOD: noveljem? ne noveljem? */
- goto go_for_next_interrupt;
- }
-
- go_for_next_interrupt: /* One step in the interrupt queue */
- board->riq[board->riq_ptr].all = 0; /* megjelolom hogy itt meg nem jart a hw */
- board->riq_ptr = (board->riq_ptr + 1) % MUNICH_INTQMAX;
-
- }
-
- /* Check every Rx ring for incomed packets: */
-
- for (channel = 0; channel < 32; channel++)
- {
- dev = board->twins[channel];
-
- if (dev != NULL)
- {
- ch = netdev_priv(dev);
- hw = (struct slicecom_privdata *)ch->HW_privdata;
-
- rx_status = hw->rx_desc[hw->rx_desc_ptr].status;
-
- if (!(rx_status & 0x80)) /* mar jart itt a hardver */
- {
- ack &= ~STAT_PRI; /* Don't ack, we had some work */
-
- /* Ez most egy kicsit zuros, mert itt mar nem latom az int_infot */
- if (rx_status & RX_STATUS_ROF)
- ch->stats.rx_over_errors++; /* TOD: 'cat status'-hoz igazodok */
-
- if (rx_status & RX_STATUS_RA)
- /* Abort received or issued on channel */
- ch->stats.rx_frame_errors++; /* or HOLD bit in the descriptor */
- /* TOD: 'cat status'-hoz igazodok */
-
- if (rx_status & RX_STATUS_LFD)
- { /* Long Frame (longer then MFL in the MODE1) */
- ch->stats.rx_length_errors++;
- goto go_for_next_frame;
- }
-
- if (rx_status & RX_STATUS_NOB)
- { /* Not n*8 bits long frame - frame alignment */
- ch->stats.rx_frame_errors++; /* ez viszont nem igazodik a 'cat status'-hoz */
- goto go_for_next_frame;
- }
-
- if (rx_status & RX_STATUS_CRCO)
- { /* CRC error */
- ch->stats.rx_crc_errors++;
- goto go_for_next_frame;
- }
-
- if (rx_status & RX_STATUS_SF)
- { /* Short Frame: rovidebb mint CRC+2byte */
- ch->stats.rx_errors++; /* The HW does not set PCI_INT_ERR bit for this one, see page 246 */
- ch->stats.rx_length_errors++;
- goto go_for_next_frame;
- }
-
- if (rx_status != 0)
- {
- printk("SliceCOM: %s: unhandled rx_status: 0x%02x\n",
- dev->name, rx_status);
- goto go_for_next_frame;
- }
-
- /* frame received without errors: */
-
- length = hw->rx_desc[hw->rx_desc_ptr].bno;
- ch->stats.rx_packets++; /* Count only 'good' packets */
- ch->stats.rx_bytes += length;
-
- /* Allocate a larger skb and reserve the heading for efficiency: */
-
- if ((skb = dev_alloc_skb(length + 16)) == NULL)
- {
- ch->stats.rx_dropped++;
- goto go_for_next_frame;
- }
-
- /* Do bookkeeping: */
-
- skb_reserve(skb, 16);
- skb_put(skb, length);
- skb->dev = dev;
-
- /* Now copy the data into the buffer: */
-
- memcpy(skb->data, &(hw->rx_data[hw->rx_desc_ptr][0]), length);
-
- /* DEL: UGLY HACK!!!! */
- if (*((int *)skb->data) == 0x02000000 &&
- *(((int *)skb->data) + 1) == 0x3580008f)
- {
- printk("%s: swapping hack\n", dev->name);
- *((int *)skb->data) = 0x3580008f;
- *(((int *)skb->data) + 1) = 0x02000000;
- }
-
- if (ch->debug_flags & DEBUG_HW_RX)
- comx_debug_skb(dev, skb, "MUNICH_interrupt receiving");
-
- /* Pass it to the protocol entity: */
-
- ch->LINE_rx(dev, skb);
-
- go_for_next_frame:
- /* DEL: rafutott-e a HOLD bitre -detektalas */
- {
- if( ((rx_desc_t*)phys_to_virt(board->ccb->current_rx_desc[channel]))->hold
- && ((rx_desc_t*)phys_to_virt(board->ccb->current_rx_desc[channel]))->status != 0xff)
- hw->rafutott++; /* rafutott: hanyszor volt olyan hogy a current descriptoron HOLD bit volt, es a hw mar befejezte az irast (azaz a hw rafutott a HOLD bitre) */
- }
-
- // if( jiffies % 2 ) /* DELL: okozzunk egy kis Rx ring slipet :) */
- // {
- /* Step forward with the receive descriptors: */
- /* if you change this, change the copy of it below too! Search for: "RxSlip" */
- hw->rx_desc[(hw->rx_desc_ptr + RX_DESC_MAX - 1) % RX_DESC_MAX].hold = 1;
- hw->rx_desc[hw->rx_desc_ptr].status = 0xFF; /* megjelolom hogy itt meg nem jart a hw */
- hw->rx_desc[(hw->rx_desc_ptr + RX_DESC_MAX - 2) % RX_DESC_MAX].hold = 0;
- hw->rx_desc_ptr = (hw->rx_desc_ptr + 1) % RX_DESC_MAX;
- // }
- }
- }
- }
-
- stat &= ~STAT_PRI;
-
-// }
-
-// if( stat & STAT_PTI ) /* TOD: primko megvalositas: mindig csak egy esemenyt dolgozok fel, */
- /* es nem torlom a STAT-ot, ezert ujra visszajon ide a rendszer. Amikor */
- /* jon interrupt, de nincs mit feldolgozni, akkor torlom a STAT-ot. */
- /* 'needs a rewrite', de elso megoldasnak jo lesz */
-// {
- int_info = board->tiq[board->tiq_ptr];
- if (int_info.all & 0xF0000000) /* ha ez nem 0, akkor itt interrupt_info van */
- {
- ack &= ~STAT_PTI; /* don't ack the interrupt, we had some work to do */
-
- channel = PCM_INT_CHANNEL(int_info.all);
- dev = board->twins[channel];
-
- if (dev == NULL)
- {
- printk("MUNICH_interrupt: got a Tx interrupt for NULL device "
- "%s.twins[%d], int_info = 0x%08x\n",
- board->isx21 ? "pcicom" : "slicecom", channel, int_info.all);
- goto go_for_next_tx_interrupt;
- }
-
- ch = netdev_priv(dev);
- hw = (struct slicecom_privdata *)ch->HW_privdata;
-
- // printk("Tx STAT=0x%08x int_info=0x%08x tiq_ptr=%d\n", stat, int_info.all, board->tiq_ptr );
-
- if (int_info.all & PCM_INT_FE2)
- { /* "Tx available" */
- /* do nothing */
- }
- else if (int_info.all & PCM_INT_FO)
- { /* Internal buffer (RB) overrun */
- ch->stats.rx_over_errors++;
- }
- else
- {
- printk("slicecom: %s: unhandled Tx int_info: 0x%08x\n",
- dev->name, int_info.all);
- }
-
- go_for_next_tx_interrupt:
- board->tiq[board->tiq_ptr].all = 0;
- board->tiq_ptr = (board->tiq_ptr + 1) % MUNICH_INTQMAX;
- }
-
- /* Check every Tx ring for incoming packets: */
-
- for (channel = 0; channel < 32; channel++)
- {
- dev = board->twins[channel];
-
- if (dev != NULL)
- {
- int newbusy;
-
- ch = netdev_priv(dev);
- hw = (struct slicecom_privdata *)ch->HW_privdata;
-
- /* We don't trust the "Tx available" info from the TIQ, but check */
- /* every ring if there is some free room */
-
- if (ch->init_status && netif_running(dev))
- {
- newbusy = ( TX_DESC_MAX + (& hw->tx_desc[ hw->tx_desc_ptr ]) -
- (tx_desc_t*)phys_to_virt(board->ccb->current_tx_desc[ hw->channel ]) ) % TX_DESC_MAX;
-
- if(newbusy < 0)
- {
- printk("slicecom: %s: FATAL: fresly computed busy = %d, HW: 0x%p, SW: 0x%p\n",
- dev->name, newbusy,
- phys_to_virt(board->ccb->current_tx_desc[hw->channel]),
- & hw->tx_desc[hw->tx_desc_ptr]);
- }
-
- /* Fogyott valami a Tx ringbol? */
-
- if (newbusy < hw->busy)
- {
- // ack &= ~STAT_PTI; /* Don't ack, we had some work */
- hw->busy = newbusy;
- if (ch->LINE_tx)
- ch->LINE_tx(dev); /* Report it to protocol driver */
- }
- else if (newbusy > hw->busy)
- printk("slicecom: %s: newbusy > hw->busy, this should not happen!\n", dev->name);
- }
- }
- }
- stat &= ~STAT_PTI;
-
- int_info = board->piq[board->piq_ptr];
- if (int_info.all & 0xF0000000) /* ha ez nem 0, akkor itt interrupt_info van */
- {
- ack &= ~STAT_LBII; /* don't ack the interrupt, we had some work to do */
-
- /* We do not really use (yet) the interrupt info from this queue, */
-
- // printk("slicecom: %s: LBI Interrupt event: %08x\n", board->devname, int_info.all);
-
- if (!board->isx21)
- {
- slicecom_update_leds(board);
- slicecom_update_line_counters(board);
- }
-
- goto go_for_next_lbi_interrupt; /* To avoid warning about unused label */
-
- go_for_next_lbi_interrupt: /* One step in the interrupt queue */
- board->piq[board->piq_ptr].all = 0; /* megjelolom hogy itt meg nem jart a hw */
- board->piq_ptr = (board->piq_ptr + 1) % MUNICH_PIQMAX;
- }
- stat &= ~STAT_LBII;
-
- writel(ack, MUNICH_VIRT(STAT));
-
- if (stat & STAT_TSPA)
- {
- // printk("slicecom: %s: PCM TSP Asynchronous\n", board->devname);
- writel(STAT_TSPA, MUNICH_VIRT(STAT));
- stat &= ~STAT_TSPA;
- }
-
- if (stat & STAT_RSPA)
- {
- // printk("slicecom: %s: PCM RSP Asynchronous\n", board->devname);
- writel(STAT_RSPA, MUNICH_VIRT(STAT));
- stat &= ~STAT_RSPA;
- }
- if (stat)
- {
- printk("MUNICH_interrupt: unhandled interrupt, STAT=0x%08x\n",
- stat);
- writel(stat, MUNICH_VIRT(STAT)); /* ha valamit megsem kezeltunk le, azert ack-ot kuldunk neki */
- }
-
- }
- board->histogram[work]++;
-
- /* We can miss these if we reach the MAX_WORK */
- /* Count it to see how often it happens */
-
- if (race_stat & STAT_PRI)
- board->stat_pri_races_missed++;
- if (race_stat & STAT_PTI)
- board->stat_pti_races_missed++;
- return IRQ_HANDLED;
-}
-
-/*
- * Hardware open routine.
- * Called by comx (upper) layer when the user wants to bring up the interface
- * with ifconfig.
- * Initializes hardware, allocates resources etc.
- * Returns 0 on OK, or standard error value on error.
- */
-
-static int MUNICH_open(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw = ch->HW_privdata;
- struct proc_dir_entry *procfile = ch->procdir->subdir;
- munich_board_t *board;
- munich_ccb_t *ccb;
-
- u32 *bar1;
- u8 *lbi;
- u32 stat;
- unsigned long flags, jiffs;
-
- int i, channel;
- u32 timeslots = hw->timeslots;
-
- board = hw->boardnum + (ch->hardware == &pcicomhw ? pcicom_boards : slicecom_boards);
-
- bar1 = board->bar1;
- lbi = board->lbi;
-
- /* TODO: a timeslotok ellenorzese kell majd ide .. hat, biztos? mar a write_proc-ban is
- ellenorzom valamennyire.
- if (!dev->io || !dev->irq) return -ENODEV;
- */
-
- if (!board->pci)
- {
- printk("MUNICH_open: no %s board with boardnum = %d\n",
- ch->hardware->name, hw->boardnum);
- return -ENODEV;
- }
-
- spin_lock_irqsave(&mister_lock, flags);
- /* lock the section to avoid race with multiple opens and make sure
- that no interrupts get called while this lock is active */
-
- if (board->use_count == 0) /* bring up the board if it was unused */
- /* if fails, frees allocated resources and returns. */
- /* TOD: is it safe? nem kellene resetelni a kartyat? */
- {
- printk("MUNICH_open: %s: bringing up board\n", board->devname);
-
- /* Clean up the board's static struct if messed: */
-
- for (i = 0; i < 32; i++)
- board->twins[i] = NULL;
- for (i = 0; i < MAX_WORK; i++)
- board->histogram[i] = 0;
-
- board->lineup = 0;
-
- /* Allocate CCB: */
- board->ccb = kmalloc(sizeof(munich_ccb_t), GFP_KERNEL);
- if (board->ccb == NULL)
- {
- spin_unlock_irqrestore(&mister_lock, flags);
- return -ENOMEM;
- }
- memset((void *)board->ccb, 0, sizeof(munich_ccb_t));
- board->ccb->csa = virt_to_phys(board->ccb);
- ccb = board->ccb;
- for (i = 0; i < 32; i++)
- {
- ccb->timeslot_spec[i].tti = 1;
- ccb->timeslot_spec[i].rti = 1;
- }
-
- /* Interrupt queues: */
-
- board->tiq = kmalloc(MUNICH_INTQSIZE, GFP_KERNEL);
- if (board->tiq == NULL)
- {
- spin_unlock_irqrestore(&mister_lock, flags);
- return -ENOMEM;
- }
- memset((void *)board->tiq, 0, MUNICH_INTQSIZE);
-
- board->riq = kmalloc(MUNICH_INTQSIZE, GFP_KERNEL);
- if (board->riq == NULL)
- {
- spin_unlock_irqrestore(&mister_lock, flags);
- return -ENOMEM;
- }
- memset((void *)board->riq, 0, MUNICH_INTQSIZE);
-
- board->piq = kmalloc(MUNICH_PIQSIZE, GFP_KERNEL);
- if (board->piq == NULL)
- {
- spin_unlock_irqrestore(&mister_lock, flags);
- return -ENOMEM;
- }
- memset((void *)board->piq, 0, MUNICH_PIQSIZE);
-
- board->tiq_ptr = 0;
- board->riq_ptr = 0;
- board->piq_ptr = 0;
-
- /* Request irq: */
-
- board->irq = 0;
-
- /* (char*) cast to avoid warning about discarding volatile: */
- if (request_irq(board->pci->irq, MUNICH_interrupt, 0,
- (char *)board->devname, (void *)board))
- {
- printk("MUNICH_open: %s: unable to obtain irq %d\n", board->devname,
- board->pci->irq);
- /* TOD: free other resources (a sok malloc feljebb) */
- spin_unlock_irqrestore(&mister_lock, flags);
- return -EAGAIN;
- }
- board->irq = board->pci->irq; /* csak akkor legyen != 0, ha tenyleg le van foglalva nekunk */
-
- /* Programming device: */
-
- /* Reset the board like a power-on: */
- /* TOD:
- - It is not a real power-on: if a DMA transaction fails with master abort, the board
- stays in half-dead state.
- - It doesn't reset the FALC line driver */
-
- pci_write_config_dword(board->pci, MUNICH_PCI_PCIRES, 0xe0000);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- pci_write_config_dword(board->pci, MUNICH_PCI_PCIRES, 0);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
-
- writel(virt_to_phys(&ccb->csa), MUNICH_VIRT(CCBA));
- writel(virt_to_phys( board->tiq ), MUNICH_VIRT(TIQBA));
- writel(MUNICH_INTQLEN, MUNICH_VIRT(TIQL));
- writel(virt_to_phys( board->riq ), MUNICH_VIRT(RIQBA));
- writel(MUNICH_INTQLEN, MUNICH_VIRT(RIQL));
- writel(virt_to_phys( board->piq ), MUNICH_VIRT(PIQBA));
- writel(MUNICH_PIQLEN, MUNICH_VIRT(PIQL));
-
- /* Put the magic values into the registers: */
-
- writel(MODE1_MAGIC, MUNICH_VIRT(MODE1));
- writel(MODE2_MAGIC, MUNICH_VIRT(MODE2));
-
- writel(LREG0_MAGIC, MUNICH_VIRT(LREG0));
- writel(LREG1_MAGIC, MUNICH_VIRT(LREG1));
- writel(LREG2_MAGIC, MUNICH_VIRT(LREG2));
- writel(LREG3_MAGIC, MUNICH_VIRT(LREG3));
- writel(LREG4_MAGIC, MUNICH_VIRT(LREG4));
- writel(LREG5_MAGIC, MUNICH_VIRT(LREG5));
-
- writel(LCONF_MAGIC1, MUNICH_VIRT(LCONF)); /* reset the DMSM */
- writel(LCONF_MAGIC2, MUNICH_VIRT(LCONF)); /* enable the DMSM */
-
- writel(~0, MUNICH_VIRT(TXPOLL));
- writel(board->isx21 ? 0x1400 : 0xa000, MUNICH_VIRT(GPDIR));
-
- if (readl(MUNICH_VIRT(STAT))) writel(readl(MUNICH_VIRT(STAT)), MUNICH_VIRT(STAT));
-
- ccb->action_spec = CCB_ACTIONSPEC_RES | CCB_ACTIONSPEC_IA;
- writel(CMD_ARPCM, MUNICH_VIRT(CMD)); /* Start the PCM core reset */
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
-
- stat = 0; /* Wait for the action to complete max. 1 second */
- jiffs = jiffies;
- while (!((stat = readl(MUNICH_VIRT(STAT))) & (STAT_PCMA | STAT_PCMF)) && time_before(jiffies, jiffs + HZ))
- {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- }
-
- if (stat & STAT_PCMF)
- {
- printk(KERN_ERR
- "MUNICH_open: %s: Initial ARPCM failed. STAT=0x%08x\n",
- board->devname, stat);
- writel(readl(MUNICH_VIRT(STAT)) & STAT_PCMF, MUNICH_VIRT(STAT));
- free_irq(board->irq, (void *)board); /* TOD: free other resources too *//* maybe shut down hw? */
- board->irq = 0;
- spin_unlock_irqrestore(&mister_lock, flags);
- return -EAGAIN;
- }
- else if (!(stat & STAT_PCMA))
- {
- printk(KERN_ERR
- "MUNICH_open: %s: Initial ARPCM timeout. STAT=0x%08x\n",
- board->devname, stat);
- free_irq(board->irq, (void *)board); /* TOD: free other resources too *//* maybe shut off the hw? */
- board->irq = 0;
- spin_unlock_irqrestore(&mister_lock, flags);
- return -EIO;
- }
-
- writel(readl(MUNICH_VIRT(STAT)) & STAT_PCMA, MUNICH_VIRT(STAT)); /* Acknowledge */
-
- if (board->isx21) writel(0, MUNICH_VIRT(GPDATA));
-
- printk("MUNICH_open: %s: succesful HW-open took %ld jiffies\n",
- board->devname, jiffies - jiffs);
-
- /* Set up the FALC hanging on the Local Bus: */
-
- if (!board->isx21)
- {
- writeb(0x0e, lbi + FMR1);
- writeb(0, lbi + LIM0);
- writeb(0xb0, lbi + LIM1); /* TODO: input threshold */
- writeb(0xf7, lbi + XPM0);
- writeb(0x02, lbi + XPM1);
- writeb(0x00, lbi + XPM2);
- writeb(0xf0, lbi + FMR0);
- writeb(0x80, lbi + PCD);
- writeb(0x80, lbi + PCR);
- writeb(0x00, lbi + LIM2);
- writeb(0x07, lbi + XC0);
- writeb(0x3d, lbi + XC1);
- writeb(0x05, lbi + RC0);
- writeb(0x00, lbi + RC1);
- writeb(0x83, lbi + FMR2);
- writeb(0x9f, lbi + XSW);
- writeb(0x0f, lbi + XSP);
- writeb(0x00, lbi + TSWM);
- writeb(0xe0, lbi + MODE);
- writeb(0xff, lbi + IDLE); /* Idle Code to send in unused timeslots */
- writeb(0x83, lbi + IPC); /* interrupt query line mode: Push/pull output, active high */
- writeb(0xbf, lbi + IMR3); /* send an interrupt every second */
-
- slicecom_set_framing(hw->boardnum, board->framing);
- slicecom_set_linecode(hw->boardnum, board->linecode);
- slicecom_set_clock_source(hw->boardnum, board->clock_source);
- slicecom_set_loopback(hw->boardnum, board->loopback);
-
- memset((void *)board->intervals, 0, sizeof(board->intervals));
- board->current_interval = 0;
- board->elapsed_seconds = 0;
- board->ses_seconds = 0;
- board->is_unavailable = 0;
- board->no_ses_seconds = 0;
- board->deg_elapsed_seconds = 0;
- board->deg_cumulated_errors = 0;
- }
-
- /* Enable the interrupts last */
- /* These interrupts will be enabled. We do not need the others. */
-
- writel(readl(MUNICH_VIRT(IMASK)) & ~(STAT_PTI | STAT_PRI | STAT_LBII | STAT_TSPA | STAT_RSPA), MUNICH_VIRT(IMASK));
- }
-
- spin_unlock_irqrestore(&mister_lock, flags);
-
- dev->irq = board->irq; /* hogy szep legyen az ifconfig outputja */
- ccb = board->ccb; /* TODO: ez igy csunya egy kicsit hogy benn is meg kinn is beletoltom :( */
-
- spin_lock_irqsave(&mister_lock, flags);
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
-
- /* Check if the selected timeslots aren't used already */
-
- for (i = 0; i < 32; i++)
- if (((1 << i) & timeslots) && !ccb->timeslot_spec[i].tti)
- {
- printk("MUNICH_open: %s: timeslot %d already used by %s\n",
- dev->name, i, board->twins[ccb->timeslot_spec[i].txchannel]->name);
- spin_unlock_irqrestore(&mister_lock, flags);
- return -EBUSY; /* TODO: lehet hogy valami mas errno kellene? */
- }
-
- /* find a free channel: */
- /* TODO: ugly, rewrite it */
-
- for (channel = 0; channel <= 32; channel++)
- {
- if (channel == 32)
- { /* not found a free one */
- printk
- ("MUNICH_open: %s: FATAL: can not find a free channel - this should not happen!\n",
- dev->name);
- spin_unlock_irqrestore(&mister_lock, flags);
- return -ENODEV;
- }
- if (board->twins[channel] == NULL)
- break; /* found the first free one */
- }
-
- board->lastcheck = jiffies; /* avoid checking uninitialized hardware channel */
-
- /* Open the channel. If fails, calls MUNICH_close() to properly free resources and stop the HW */
-
- hw->channel = channel;
- board->twins[channel] = dev;
-
- board->use_count++; /* meg nem nyitottuk meg a csatornat, de a twins-ben
- mar elfoglaltunk egyet, es ha a _close-t akarjuk hivni, akkor ez kell. */
- for (i = 0; i < 32; i++)
- if ((1 << i) & timeslots)
- {
- ccb->timeslot_spec[i].tti = 0;
- ccb->timeslot_spec[i].txchannel = channel;
- ccb->timeslot_spec[i].txfillmask = ~0;
-
- ccb->timeslot_spec[i].rti = 0;
- ccb->timeslot_spec[i].rxchannel = channel;
- ccb->timeslot_spec[i].rxfillmask = ~0;
- }
-
- if (!board->isx21) rework_idle_channels(dev);
-
- memset((void *)&(hw->tx_desc), 0, TX_DESC_MAX * sizeof(tx_desc_t));
- memset((void *)&(hw->rx_desc), 0, RX_DESC_MAX * sizeof(rx_desc_t));
-
- for (i = 0; i < TX_DESC_MAX; i++)
- {
- hw->tx_desc[i].fe = 1;
- hw->tx_desc[i].fnum = 2;
- hw->tx_desc[i].data = virt_to_phys( & (hw->tx_data[i][0]) );
- hw->tx_desc[i].next = virt_to_phys( & (hw->tx_desc[ (i+1) % TX_DESC_MAX ]) );
-
- }
- hw->tx_desc_ptr = 0; /* we will send an initial packet so it is correct: "oda irtunk utoljara" */
- hw->busy = 0;
- hw->tx_desc[hw->tx_desc_ptr].hold = 1;
- hw->tx_desc[hw->tx_desc_ptr].no = 1; /* TOD: inkabb csak 0 hosszut kuldjunk ki az initkor? */
-
- for (i = 0; i < RX_DESC_MAX; i++)
- {
- hw->rx_desc[i].no = RXBUFFER_SIZE;
- hw->rx_desc[i].data = virt_to_phys(&(hw->rx_data[i][0]));
- hw->rx_desc[i].next = virt_to_phys(&(hw->rx_desc[(i+1) % RX_DESC_MAX]));
- hw->rx_desc[i].status = 0xFF;
- }
- hw->rx_desc_ptr = 0;
-
- hw->rx_desc[(hw->rx_desc_ptr + RX_DESC_MAX - 2) % RX_DESC_MAX].hold = 1;
-
- memset((void *)&ccb->channel_spec[channel], 0, sizeof(channel_spec_t));
-
- ccb->channel_spec[channel].ti = 0; /* Transmit off */
- ccb->channel_spec[channel].to = 1;
- ccb->channel_spec[channel].ta = 0;
-
- ccb->channel_spec[channel].th = 1; /* Transmit hold */
-
- ccb->channel_spec[channel].ri = 0; /* Receive off */
- ccb->channel_spec[channel].ro = 1;
- ccb->channel_spec[channel].ra = 0;
-
- ccb->channel_spec[channel].mode = 3; /* HDLC */
-
- ccb->action_spec = CCB_ACTIONSPEC_IN | (channel << 8);
- writel(CMD_ARPCM, MUNICH_VIRT(CMD));
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
-
- spin_unlock_irqrestore(&mister_lock, flags);
-
- stat = 0;
- jiffs = jiffies;
- while (!((stat = readl(MUNICH_VIRT(STAT))) & (STAT_PCMA | STAT_PCMF)) && time_before(jiffies, jiffs + HZ))
- {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- }
-
- if (stat & STAT_PCMF)
- {
- printk(KERN_ERR "MUNICH_open: %s: %s channel %d off failed\n",
- dev->name, board->devname, channel);
- writel(readl(MUNICH_VIRT(STAT)) & STAT_PCMF, MUNICH_VIRT(STAT));
- MUNICH_close(dev);
- return -EAGAIN;
- }
- else if (!(stat & STAT_PCMA))
- {
- printk(KERN_ERR "MUNICH_open: %s: %s channel %d off timeout\n",
- dev->name, board->devname, channel);
- MUNICH_close(dev);
- return -EIO;
- }
-
- writel(readl(MUNICH_VIRT(STAT)) & STAT_PCMA, MUNICH_VIRT(STAT));
- // printk("MUNICH_open: %s: succesful channel off took %ld jiffies\n", board->devname, jiffies-jiffs);
-
- spin_lock_irqsave(&mister_lock, flags);
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
-
- ccb->channel_spec[channel].ifc = 1; /* 1 .. 'Idle/Flag change' interrupt letiltva */
- ccb->channel_spec[channel].fit = 1;
- ccb->channel_spec[channel].nitbs = 1;
- ccb->channel_spec[channel].itbs = 2;
-
- /* TODOO: lehet hogy jo lenne igy, de utana kellene nezni hogy nem okoz-e fragmentaciot */
- // ccb->channel_spec[channel].itbs = 2 * number_of_timeslots;
- // printk("open: %s: number_of_timeslots: %d\n", dev->name, number_of_timeslots);
-
- ccb->channel_spec[channel].mode = 3; /* HDLC */
- ccb->channel_spec[channel].ftda = virt_to_phys(&(hw->tx_desc));
- ccb->channel_spec[channel].frda = virt_to_phys(&(hw->rx_desc[0]));
-
- ccb->channel_spec[channel].ti = 1; /* Transmit init */
- ccb->channel_spec[channel].to = 0;
- ccb->channel_spec[channel].ta = 1;
-
- ccb->channel_spec[channel].th = 0;
-
- ccb->channel_spec[channel].ri = 1; /* Receive init */
- ccb->channel_spec[channel].ro = 0;
- ccb->channel_spec[channel].ra = 1;
-
- ccb->action_spec = CCB_ACTIONSPEC_ICO | (channel << 8);
- writel(CMD_ARPCM, MUNICH_VIRT(CMD)); /* Start the channel init */
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
-
- spin_unlock_irqrestore(&mister_lock, flags);
-
- stat = 0; /* Wait for the action to complete max. 1 second */
- jiffs = jiffies;
- while (!((stat = readl(MUNICH_VIRT(STAT))) & (STAT_PCMA | STAT_PCMF)) && time_before(jiffies, jiffs + HZ))
- {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- }
-
- if (stat & STAT_PCMF)
- {
- printk(KERN_ERR "MUNICH_open: %s: channel open ARPCM failed\n",
- board->devname);
- writel(readl(MUNICH_VIRT(STAT)) & STAT_PCMF, MUNICH_VIRT(STAT));
- MUNICH_close(dev);
- return -EAGAIN;
- }
- else if (!(stat & STAT_PCMA))
- {
- printk(KERN_ERR "MUNICH_open: %s: channel open ARPCM timeout\n",
- board->devname);
- MUNICH_close(dev);
- return -EIO;
- }
-
- writel(readl(MUNICH_VIRT(STAT)) & STAT_PCMA, MUNICH_VIRT(STAT));
- // printk("MUNICH_open: %s: succesful channel open took %ld jiffies\n", board->devname, jiffies-jiffs);
-
- spin_lock_irqsave(&mister_lock, flags);
-
- ccb->channel_spec[channel].nitbs = 0; /* once ITBS defined, these must be 0 */
- ccb->channel_spec[channel].itbs = 0;
-
- if (board->isx21)
- {
- init_timer(&board->modemline_timer);
- board->modemline_timer.data = (unsigned long)board;
- board->modemline_timer.function = pcicom_modemline;
- board->modemline_timer.expires = jiffies + HZ;
- add_timer((struct timer_list *)&board->modemline_timer);
- }
-
- /* It is done. Declare that we're open: */
- hw->busy = 0; /* It may be 1 if the frame at Tx init already ended, but it is not */
- /* a real problem: we compute hw->busy on every interrupt */
- hw->rafutott = 0;
- ch->init_status |= HW_OPEN;
-
- /* Initialize line state: */
- if (board->lineup)
- ch->line_status |= LINE_UP;
- else
- ch->line_status &= ~LINE_UP;
-
- /* Remove w attribute from /proc files associated to hw parameters:
- no write when the device is open */
-
- for (; procfile; procfile = procfile->next)
- if (strcmp(procfile->name, FILENAME_BOARDNUM) == 0 ||
- strcmp(procfile->name, FILENAME_TIMESLOTS) == 0)
- procfile->mode = S_IFREG | 0444;
-
- spin_unlock_irqrestore(&mister_lock, flags);
-
- return 0;
-}
-
-/*
- * Hardware close routine.
- * Called by comx (upper) layer when the user wants to bring down the interface
- * with ifconfig.
- * We also call it from MUNICH_open, if the open fails.
- * Brings down hardware, frees resources, stops receiver
- * Returns 0 on OK, or standard error value on error.
- */
-
-static int MUNICH_close(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw = ch->HW_privdata;
- struct proc_dir_entry *procfile = ch->procdir->subdir;
- munich_board_t *board;
- munich_ccb_t *ccb;
-
- u32 *bar1;
- u32 timeslots = hw->timeslots;
- int stat, i, channel = hw->channel;
- unsigned long jiffs;
-
- board = hw->boardnum + (ch->hardware == &pcicomhw ? pcicom_boards : slicecom_boards);
-
- ccb = board->ccb;
- bar1 = board->bar1;
-
- if (board->isx21)
- del_timer((struct timer_list *)&board->modemline_timer);
-
- spin_lock_irqsave(&mister_lock, flags);
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
-
- /* Disable receiver for the channel: */
-
- for (i = 0; i < 32; i++)
- if ((1 << i) & timeslots)
- {
- ccb->timeslot_spec[i].tti = 1;
- ccb->timeslot_spec[i].txfillmask = 0; /* just to be double-sure :) */
-
- ccb->timeslot_spec[i].rti = 1;
- ccb->timeslot_spec[i].rxfillmask = 0;
- }
-
- if (!board->isx21) rework_idle_channels(dev);
-
- ccb->channel_spec[channel].ti = 0; /* Receive off, Transmit off */
- ccb->channel_spec[channel].to = 1;
- ccb->channel_spec[channel].ta = 0;
- ccb->channel_spec[channel].th = 1;
-
- ccb->channel_spec[channel].ri = 0;
- ccb->channel_spec[channel].ro = 1;
- ccb->channel_spec[channel].ra = 0;
-
- board->twins[channel] = NULL;
-
- ccb->action_spec = CCB_ACTIONSPEC_IN | (channel << 8);
- writel(CMD_ARPCM, MUNICH_VIRT(CMD));
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
-
- spin_unlock_irqrestore(&mister_lock, flags);
-
- stat = 0;
- jiffs = jiffies;
- while (!((stat = readl(MUNICH_VIRT(STAT))) & (STAT_PCMA | STAT_PCMF)) && time_before(jiffies, jiffs + HZ))
- {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- }
-
- if (stat & STAT_PCMF)
- {
- printk(KERN_ERR
- "MUNICH_close: %s: FATAL: channel off ARPCM failed, not closing!\n",
- dev->name);
- writel(readl(MUNICH_VIRT(STAT)) & STAT_PCMF, MUNICH_VIRT(STAT));
- /* If we return success, the privdata (and the descriptor list) will be freed */
- return -EIO;
- }
- else if (!(stat & STAT_PCMA))
- printk(KERN_ERR "MUNICH_close: %s: channel off ARPCM timeout\n",
- board->devname);
-
- writel(readl(MUNICH_VIRT(STAT)) & STAT_PCMA, MUNICH_VIRT(STAT));
- // printk("MUNICH_close: %s: channel off took %ld jiffies\n", board->devname, jiffies-jiffs);
-
- spin_lock_irqsave(&mister_lock, flags);
-
- if (board->use_count) board->use_count--;
-
- if (!board->use_count) /* we were the last user of the board */
- {
- printk("MUNICH_close: bringing down board %s\n", board->devname);
-
- /* program down the board: */
-
- writel(0x0000FF7F, MUNICH_VIRT(IMASK)); /* do not send any interrupts */
- writel(0, MUNICH_VIRT(CMD)); /* stop the timer if someone started it */
- writel(~0U, MUNICH_VIRT(STAT)); /* if an interrupt came between the cli()-sti(), quiet it */
- if (ch->hardware == &pcicomhw)
- writel(0x1400, MUNICH_VIRT(GPDATA));
-
- /* Put the board into 'reset' state: */
- pci_write_config_dword(board->pci, MUNICH_PCI_PCIRES, 0xe0000);
-
- /* Free irq and other resources: */
- if (board->irq)
- free_irq(board->irq, (void *)board); /* Ha nem inicializalta magat, akkor meg nincs irq */
- board->irq = 0;
-
- /* Free CCB and the interrupt queues */
- if (board->ccb) kfree((void *)board->ccb);
- if (board->tiq) kfree((void *)board->tiq);
- if (board->riq) kfree((void *)board->riq);
- if (board->piq) kfree((void *)board->piq);
- board->ccb = NULL;
- board->tiq = board->riq = board->piq = NULL;
- }
-
- /* Enable setting of hw parameters */
- for (; procfile; procfile = procfile->next)
- if (strcmp(procfile->name, FILENAME_BOARDNUM) == 0 ||
- strcmp(procfile->name, FILENAME_TIMESLOTS) == 0)
- procfile->mode = S_IFREG | 0644;
-
- /* We're not open anymore */
- ch->init_status &= ~HW_OPEN;
-
- spin_unlock_irqrestore(&mister_lock, flags);
-
- return 0;
-}
-
-/*
- * Give (textual) status information.
- * The text it returns will be a part of what appears when the user does a
- * cat /proc/comx/comx[n]/status
- * Don't write more than PAGESIZE.
- * Return value: number of bytes written (length of the string, incl. 0)
- */
-
-static int MUNICH_minden(struct net_device *dev, char *page)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw = ch->HW_privdata;
- munich_board_t *board;
- struct net_device *devp;
-
- u8 *lbi;
- e1_stats_t *curr_int, *prev_int;
- e1_stats_t last4, last96; /* sum of last 4, resp. last 96 intervals */
- unsigned *sump, /* running pointer for the sum data */
- *p; /* running pointer for the interval data */
-
- int len = 0;
- u8 frs0, frs1;
- u8 fmr2;
- int i, j;
- u32 timeslots;
-
- board = hw->boardnum + (ch->hardware == &pcicomhw ? pcicom_boards : slicecom_boards);
-
- lbi = board->lbi;
- curr_int = &board->intervals[board->current_interval];
- prev_int =
- &board->
- intervals[(board->current_interval + SLICECOM_BOARD_INTERVALS_SIZE -
- 1) % SLICECOM_BOARD_INTERVALS_SIZE];
-
- if (!board->isx21)
- {
- frs0 = readb(lbi + FRS0);
- fmr2 = readb(lbi + FMR2);
- len += scnprintf(page + len, PAGE_SIZE - len, "Controller status:\n");
- if (frs0 == 0)
- len += scnprintf(page + len, PAGE_SIZE - len, "\tNo alarms\n");
- else
- {
- if (frs0 & FRS0_LOS)
- len += scnprintf(page + len, PAGE_SIZE - len, "\tLoss Of Signal\n");
- else
- {
- if (frs0 & FRS0_AIS)
- len += scnprintf(page + len, PAGE_SIZE - len,
- "\tAlarm Indication Signal\n");
- else
- {
- if (frs0 & FRS0_AUXP)
- len += scnprintf(page + len, PAGE_SIZE - len,
- "\tAuxiliary Pattern Indication\n");
- if (frs0 & FRS0_LFA)
- len += scnprintf(page + len, PAGE_SIZE - len,
- "\tLoss of Frame Alignment\n");
- else
- {
- if (frs0 & FRS0_RRA)
- len += scnprintf(page + len, PAGE_SIZE - len,
- "\tReceive Remote Alarm\n");
-
- /* You can't set this framing with the /proc interface, but it */
- /* may be good to have here this alarm if you set it by hand: */
-
- if ((board->framing == SLICECOM_FRAMING_CRC4) &&
- (frs0 & FRS0_LMFA))
- len += scnprintf(page + len, PAGE_SIZE - len,
- "\tLoss of CRC4 Multiframe Alignment\n");
-
- if (((fmr2 & 0xc0) == 0xc0) && (frs0 & FRS0_NMF))
- len += scnprintf(page + len, PAGE_SIZE - len,
- "\tNo CRC4 Multiframe alignment Found after 400 msec\n");
- }
- }
- }
- }
-
- frs1 = readb(lbi + FRS1);
- if (FRS1_XLS & frs1)
- len += scnprintf(page + len, PAGE_SIZE - len,
- "\tTransmit Line Short\n");
-
- /* debug Rx ring: DEL: - vagy meghagyni, de akkor legyen kicsit altalanosabb */
- }
-
- len += scnprintf(page + len, PAGE_SIZE - len, "Rx ring:\n");
- len += scnprintf(page + len, PAGE_SIZE - len, "\trafutott: %d\n", hw->rafutott);
- len += scnprintf(page + len, PAGE_SIZE - len,
- "\tlastcheck: %ld, jiffies: %ld\n", board->lastcheck, jiffies);
- len += scnprintf(page + len, PAGE_SIZE - len, "\tbase: %08x\n",
- (u32) virt_to_phys(&hw->rx_desc[0]));
- len += scnprintf(page + len, PAGE_SIZE - len, "\trx_desc_ptr: %d\n",
- hw->rx_desc_ptr);
- len += scnprintf(page + len, PAGE_SIZE - len, "\trx_desc_ptr: %08x\n",
- (u32) virt_to_phys(&hw->rx_desc[hw->rx_desc_ptr]));
- len += scnprintf(page + len, PAGE_SIZE - len, "\thw_curr_ptr: %08x\n",
- board->ccb->current_rx_desc[hw->channel]);
-
- for (i = 0; i < RX_DESC_MAX; i++)
- len += scnprintf(page + len, PAGE_SIZE - len, "\t%08x %08x %08x %08x\n",
- *((u32 *) & hw->rx_desc[i] + 0),
- *((u32 *) & hw->rx_desc[i] + 1),
- *((u32 *) & hw->rx_desc[i] + 2),
- *((u32 *) & hw->rx_desc[i] + 3));
-
- if (!board->isx21)
- {
- len += scnprintf(page + len, PAGE_SIZE - len,
- "Interfaces using this board: (channel-group, interface, timeslots)\n");
- for (i = 0; i < 32; i++)
- {
- devp = board->twins[i];
- if (devp != NULL)
- {
- timeslots =
- ((struct slicecom_privdata *)((struct comx_channel *)devp->
- priv)->HW_privdata)->
- timeslots;
- len += scnprintf(page + len, PAGE_SIZE - len, "\t%2d %s: ", i,
- devp->name);
- for (j = 0; j < 32; j++)
- if ((1 << j) & timeslots)
- len += scnprintf(page + len, PAGE_SIZE - len, "%d ", j);
- len += scnprintf(page + len, PAGE_SIZE - len, "\n");
- }
- }
- }
-
- len += scnprintf(page + len, PAGE_SIZE - len, "Interrupt work histogram:\n");
- for (i = 0; i < MAX_WORK; i++)
- len += scnprintf(page + len, PAGE_SIZE - len, "hist[%2d]: %8u%c", i,
- board->histogram[i], (i &&
- ((i + 1) % 4 == 0 ||
- i == MAX_WORK - 1)) ? '\n' : ' ');
-
- len += scnprintf(page + len, PAGE_SIZE - len, "Tx ring histogram:\n");
- for (i = 0; i < TX_DESC_MAX; i++)
- len += scnprintf(page + len, PAGE_SIZE - len, "hist[%2d]: %8u%c", i,
- hw->tx_ring_hist[i], (i &&
- ((i + 1) % 4 == 0 ||
- i ==
- TX_DESC_MAX - 1)) ? '\n' : ' ');
-
- if (!board->isx21)
- {
-
- memset((void *)&last4, 0, sizeof(last4));
- memset((void *)&last96, 0, sizeof(last96));
-
- /* Calculate the sum of last 4 intervals: */
-
- for (i = 1; i <= 4; i++)
- {
- p = (unsigned *)&board->intervals[(board->current_interval +
- SLICECOM_BOARD_INTERVALS_SIZE -
- i) % SLICECOM_BOARD_INTERVALS_SIZE];
- sump = (unsigned *)&last4;
- for (j = 0; j < (sizeof(e1_stats_t) / sizeof(unsigned)); j++)
- sump[j] += p[j];
- }
-
- /* Calculate the sum of last 96 intervals: */
-
- for (i = 1; i <= 96; i++)
- {
- p = (unsigned *)&board->intervals[(board->current_interval +
- SLICECOM_BOARD_INTERVALS_SIZE -
- i) % SLICECOM_BOARD_INTERVALS_SIZE];
- sump = (unsigned *)&last96;
- for (j = 0; j < (sizeof(e1_stats_t) / sizeof(unsigned)); j++)
- sump[j] += p[j];
- }
-
- len += scnprintf(page + len, PAGE_SIZE - len,
- "Data in current interval (%d seconds elapsed):\n",
- board->elapsed_seconds);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Line Code Violations, %d Path Code Violations, %d E-Bit Errors\n",
- curr_int->line_code_violations,
- curr_int->path_code_violations, curr_int->e_bit_errors);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Slip Secs, %d Fr Loss Secs, %d Line Err Secs, %d Degraded Mins\n",
- curr_int->slip_secs, curr_int->fr_loss_secs,
- curr_int->line_err_secs, curr_int->degraded_mins);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Errored Secs, %d Bursty Err Secs, %d Severely Err Secs, %d Unavail Secs\n",
- curr_int->errored_secs, curr_int->bursty_err_secs,
- curr_int->severely_err_secs, curr_int->unavail_secs);
-
- len += scnprintf(page + len, PAGE_SIZE - len,
- "Data in Interval 1 (15 minutes):\n");
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Line Code Violations, %d Path Code Violations, %d E-Bit Errors\n",
- prev_int->line_code_violations,
- prev_int->path_code_violations, prev_int->e_bit_errors);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Slip Secs, %d Fr Loss Secs, %d Line Err Secs, %d Degraded Mins\n",
- prev_int->slip_secs, prev_int->fr_loss_secs,
- prev_int->line_err_secs, prev_int->degraded_mins);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Errored Secs, %d Bursty Err Secs, %d Severely Err Secs, %d Unavail Secs\n",
- prev_int->errored_secs, prev_int->bursty_err_secs,
- prev_int->severely_err_secs, prev_int->unavail_secs);
-
- len += scnprintf(page + len, PAGE_SIZE - len,
- "Data in last 4 intervals (1 hour):\n");
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Line Code Violations, %d Path Code Violations, %d E-Bit Errors\n",
- last4.line_code_violations, last4.path_code_violations,
- last4.e_bit_errors);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Slip Secs, %d Fr Loss Secs, %d Line Err Secs, %d Degraded Mins\n",
- last4.slip_secs, last4.fr_loss_secs, last4.line_err_secs,
- last4.degraded_mins);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Errored Secs, %d Bursty Err Secs, %d Severely Err Secs, %d Unavail Secs\n",
- last4.errored_secs, last4.bursty_err_secs,
- last4.severely_err_secs, last4.unavail_secs);
-
- len += scnprintf(page + len, PAGE_SIZE - len,
- "Data in last 96 intervals (24 hours):\n");
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Line Code Violations, %d Path Code Violations, %d E-Bit Errors\n",
- last96.line_code_violations, last96.path_code_violations,
- last96.e_bit_errors);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Slip Secs, %d Fr Loss Secs, %d Line Err Secs, %d Degraded Mins\n",
- last96.slip_secs, last96.fr_loss_secs,
- last96.line_err_secs, last96.degraded_mins);
- len += scnprintf(page + len, PAGE_SIZE - len,
- " %d Errored Secs, %d Bursty Err Secs, %d Severely Err Secs, %d Unavail Secs\n",
- last96.errored_secs, last96.bursty_err_secs,
- last96.severely_err_secs, last96.unavail_secs);
-
- }
-
-// len +=scnprintf( page + len, PAGE_SIZE - len, "Special events:\n" );
-// len +=scnprintf( page + len, PAGE_SIZE - len, "\tstat_pri/missed: %u / %u\n", board->stat_pri_races, board->stat_pri_races_missed );
-// len +=scnprintf( page + len, PAGE_SIZE - len, "\tstat_pti/missed: %u / %u\n", board->stat_pti_races, board->stat_pti_races_missed );
- return len;
-}
-
-/*
- * Memory dump function. Not used currently.
- */
-static int BOARD_dump(struct net_device *dev)
-{
- printk
- ("BOARD_dump() requested. It is unimplemented, it should not be called\n");
- return (-1);
-}
-
-/*
- * /proc file read function for the files registered by this module.
- * This function is called by the procfs implementation when a user
- * wants to read from a file registered by this module.
- * page is the workspace, start should point to the real start of data,
- * off is the file offset, data points to the file's proc_dir_entry
- * structure.
- * Returns the number of bytes copied to the request buffer.
- */
-
-static int munich_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct proc_dir_entry *file = (struct proc_dir_entry *)data;
- struct net_device *dev = file->parent->data;
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw = ch->HW_privdata;
- munich_board_t *board;
-
- int len = 0, i;
- u32 timeslots = hw->timeslots;
-
- board = hw->boardnum + (ch->hardware == &pcicomhw ? pcicom_boards : slicecom_boards);
-
- if (!strcmp(file->name, FILENAME_BOARDNUM))
- len = sprintf(page, "%d\n", hw->boardnum);
- else if (!strcmp(file->name, FILENAME_TIMESLOTS))
- {
- for (i = 0; i < 32; i++)
- if ((1 << i) & timeslots)
- len += scnprintf(page + len, PAGE_SIZE - len, "%d ", i);
- len += scnprintf(page + len, PAGE_SIZE - len, "\n");
- }
- else if (!strcmp(file->name, FILENAME_FRAMING))
- {
- i = 0;
- while (slicecom_framings[i].value &&
- slicecom_framings[i].value != board->framing)
- i++;
- len += scnprintf(page + len, PAGE_SIZE - len, "%s\n",
- slicecom_framings[i].name);
- }
- else if (!strcmp(file->name, FILENAME_LINECODE))
- {
- i = 0;
- while (slicecom_linecodes[i].value &&
- slicecom_linecodes[i].value != board->linecode)
- i++;
- len += scnprintf(page + len, PAGE_SIZE - len, "%s\n",
- slicecom_linecodes[i].name);
- }
- else if (!strcmp(file->name, FILENAME_CLOCK_SOURCE))
- {
- i = 0;
- while (slicecom_clock_sources[i].value &&
- slicecom_clock_sources[i].value != board->clock_source)
- i++;
- len +=
- scnprintf(page + len, PAGE_SIZE - len, "%s\n",
- slicecom_clock_sources[i].name);
- }
- else if (!strcmp(file->name, FILENAME_LOOPBACK))
- {
- i = 0;
- while (slicecom_loopbacks[i].value &&
- slicecom_loopbacks[i].value != board->loopback)
- i++;
- len += scnprintf(page + len, PAGE_SIZE - len, "%s\n",
- slicecom_loopbacks[i].name);
- }
- /* We set permissions to write-only for REG and LBIREG, but root can read them anyway: */
- else if (!strcmp(file->name, FILENAME_REG))
- {
- len += scnprintf(page + len, PAGE_SIZE - len,
- "%s: " FILENAME_REG ": write-only file\n", dev->name);
- }
- else if (!strcmp(file->name, FILENAME_LBIREG))
- {
- len += scnprintf(page + len, PAGE_SIZE - len,
- "%s: " FILENAME_LBIREG ": write-only file\n", dev->name);
- }
- else
- {
- printk("slicecom_read_proc: internal error, filename %s\n", file->name);
- return -EBADF;
- }
- /* file handling administration: count eof status, offset, start address
- and count: */
-
- if (off >= len)
- {
- *eof = 1;
- return 0;
- }
-
- *start = page + off;
- if (count >= len - off)
- *eof = 1;
- return min((off_t) count, (off_t) len - off);
-}
-
-/*
- * Write function for /proc files registered by us.
- * See the comment on read function above.
- * Beware! buffer is in userspace!!!
- * Returns the number of bytes written
- */
-
-static int munich_write_proc(struct file *file, const char *buffer,
- u_long count, void *data)
-{
- struct proc_dir_entry *entry = (struct proc_dir_entry *)data;
- struct net_device *dev = (struct net_device *)entry->parent->data;
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw = ch->HW_privdata;
- munich_board_t *board;
-
- unsigned long ts, tmp_boardnum;
-
- u32 tmp_timeslots = 0;
- char *page, *p;
- int i;
-
- board = hw->boardnum + (ch->hardware == &pcicomhw ? pcicom_boards : slicecom_boards);
-
- /* Paranoia checking: */
-
- if (PDE(file->f_dentry->d_inode) != entry)
- {
- printk(KERN_ERR "munich_write_proc: file <-> data internal error\n");
- return -EIO;
- }
-
- /* Request tmp buffer */
- if (!(page = (char *)__get_free_page(GFP_KERNEL)))
- return -ENOMEM;
-
- /* Copy user data and cut trailing \n */
- if (copy_from_user(page, buffer, count = min(count, PAGE_SIZE))) {
- free_page((unsigned long)page);
- return -EFAULT;
- }
- if (*(page + count - 1) == '\n')
- *(page + count - 1) = 0;
- *(page + PAGE_SIZE - 1) = 0;
-
- if (!strcmp(entry->name, FILENAME_BOARDNUM))
- {
- tmp_boardnum = simple_strtoul(page, NULL, 0);
- if (0 <= tmp_boardnum && tmp_boardnum < MAX_BOARDS)
- hw->boardnum = tmp_boardnum;
- else
- {
- printk("%s: " FILENAME_BOARDNUM " range is 0...%d\n", dev->name,
- MAX_BOARDS - 1);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- }
- else if (!strcmp(entry->name, FILENAME_TIMESLOTS))
- {
- p = page;
- while (*p)
- {
- if (isspace(*p))
- p++;
- else
- {
- ts = simple_strtoul(p, &p, 10); /* base = 10: Don't read 09 as an octal number */
- /* ts = 0 ha nem tudta beolvasni a stringet, erre egy kicsit epitek itt: */
- if (0 <= ts && ts < 32)
- {
- tmp_timeslots |= (1 << ts);
- }
- else
- {
- printk("%s: " FILENAME_TIMESLOTS " range is 1...31\n",
- dev->name);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- }
- }
- hw->timeslots = tmp_timeslots;
- }
- else if (!strcmp(entry->name, FILENAME_FRAMING))
- {
- i = 0;
- while (slicecom_framings[i].value &&
- strncmp(slicecom_framings[i].name, page,
- strlen(slicecom_framings[i].name)))
- i++;
- if (!slicecom_framings[i].value)
- {
- printk("slicecom: %s: Invalid " FILENAME_FRAMING " '%s'\n",
- dev->name, page);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- else
- { /*
- * If somebody says:
- * echo >boardnum 0
- * echo >framing no-crc4
- * echo >boardnum 1
- * - when the framing was set, hw->boardnum was 0, so it would set the framing for board 0
- * Workaround: allow to set it only if interface is administrative UP
- */
- if (netif_running(dev))
- slicecom_set_framing(hw->boardnum, slicecom_framings[i].value);
- else
- {
- printk("%s: " FILENAME_FRAMING
- " can not be set while the interface is DOWN\n",
- dev->name);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- }
- }
- else if (!strcmp(entry->name, FILENAME_LINECODE))
- {
- i = 0;
- while (slicecom_linecodes[i].value &&
- strncmp(slicecom_linecodes[i].name, page,
- strlen(slicecom_linecodes[i].name)))
- i++;
- if (!slicecom_linecodes[i].value)
- {
- printk("slicecom: %s: Invalid " FILENAME_LINECODE " '%s'\n",
- dev->name, page);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- else
- { /*
- * Allow to set it only if interface is administrative UP,
- * for the same reason as FILENAME_FRAMING
- */
- if (netif_running(dev))
- slicecom_set_linecode(hw->boardnum,
- slicecom_linecodes[i].value);
- else
- {
- printk("%s: " FILENAME_LINECODE
- " can not be set while the interface is DOWN\n",
- dev->name);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- }
- }
- else if (!strcmp(entry->name, FILENAME_CLOCK_SOURCE))
- {
- i = 0;
- while (slicecom_clock_sources[i].value &&
- strncmp(slicecom_clock_sources[i].name, page,
- strlen(slicecom_clock_sources[i].name)))
- i++;
- if (!slicecom_clock_sources[i].value)
- {
- printk("%s: Invalid " FILENAME_CLOCK_SOURCE " '%s'\n", dev->name,
- page);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- else
- { /*
- * Allow to set it only if interface is administrative UP,
- * for the same reason as FILENAME_FRAMING
- */
- if (netif_running(dev))
- slicecom_set_clock_source(hw->boardnum,
- slicecom_clock_sources[i].value);
- else
- {
- printk("%s: " FILENAME_CLOCK_SOURCE
- " can not be set while the interface is DOWN\n",
- dev->name);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- }
- }
- else if (!strcmp(entry->name, FILENAME_LOOPBACK))
- {
- i = 0;
- while (slicecom_loopbacks[i].value &&
- strncmp(slicecom_loopbacks[i].name, page,
- strlen(slicecom_loopbacks[i].name)))
- i++;
- if (!slicecom_loopbacks[i].value)
- {
- printk("%s: Invalid " FILENAME_LOOPBACK " '%s'\n", dev->name, page);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- else
- { /*
- * Allow to set it only if interface is administrative UP,
- * for the same reason as FILENAME_FRAMING
- */
- if (netif_running(dev))
- slicecom_set_loopback(hw->boardnum,
- slicecom_loopbacks[i].value);
- else
- {
- printk("%s: " FILENAME_LOOPBACK
- " can not be set while the interface is DOWN\n",
- dev->name);
- free_page((unsigned long)page);
- return -EINVAL;
- }
- }
- }
- else if (!strcmp(entry->name, FILENAME_REG))
- { /* DEL: 'reg' csak tmp */
- char *p;
- u32 *bar1 = board->bar1;
-
- reg = simple_strtoul(page, &p, 0);
- reg_ertek = simple_strtoul(p + 1, NULL, 0);
-
- if (reg < 0x100)
- {
- printk("reg(0x%02x) := 0x%08x jiff: %lu\n", reg, reg_ertek, jiffies);
- writel(reg_ertek, MUNICH_VIRT(reg >> 2));
- }
- else
- {
- printk("reg(0x%02x) is 0x%08x jiff: %lu\n", reg - 0x100,
- readl(MUNICH_VIRT((reg - 0x100) >> 2)), jiffies);
- }
- }
- else if (!strcmp(entry->name, FILENAME_LBIREG))
- { /* DEL: 'lbireg' csak tmp */
- char *p;
- u8 *lbi = board->lbi;
-
- lbireg = simple_strtoul(page, &p, 0);
- lbireg_ertek = simple_strtoul(p + 1, NULL, 0);
-
- if (lbireg < 0x100)
- {
- printk("lbireg(0x%02x) := 0x%02x jiff: %lu\n", lbireg,
- lbireg_ertek, jiffies);
- writeb(lbireg_ertek, lbi + lbireg);
- }
- else
- printk("lbireg(0x%02x) is 0x%02x jiff: %lu\n", lbireg - 0x100,
- readb(lbi + lbireg - 0x100), jiffies);
- }
- else
- {
- printk(KERN_ERR "munich_write_proc: internal error, filename %s\n",
- entry->name);
- free_page((unsigned long)page);
- return -EBADF;
- }
-
- /* Don't forget to free the workspace */
- free_page((unsigned long)page);
- return count;
-}
-
-/*
- * Boardtype init function.
- * Called by the comx (upper) layer, when you set boardtype.
- * Allocates resources associated to using munich board for this device,
- * initializes ch_struct pointers etc.
- * Returns 0 on success and standard error codes on error.
- */
-
-static int init_escape(struct comx_channel *ch)
-{
- kfree(ch->HW_privdata);
- return -EIO;
-}
-
-static int BOARD_init(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
- struct slicecom_privdata *hw;
- struct proc_dir_entry *new_file;
-
- /* Alloc data for private structure */
- if ((ch->HW_privdata =
- kmalloc(sizeof(struct slicecom_privdata), GFP_KERNEL)) == NULL)
- return -ENOMEM;
-
- memset(hw = ch->HW_privdata, 0, sizeof(struct slicecom_privdata));
-
- /* Register /proc files */
- if ((new_file = create_proc_entry(FILENAME_BOARDNUM, S_IFREG | 0644,
- ch->procdir)) == NULL)
- return init_escape(ch);
- new_file->data = (void *)new_file;
- new_file->read_proc = &munich_read_proc;
- new_file->write_proc = &munich_write_proc;
-// new_file->proc_iops = &comx_normal_inode_ops;
- new_file->nlink = 1;
-
- if (ch->hardware == &slicecomhw)
- {
- if ((new_file = create_proc_entry(FILENAME_TIMESLOTS, S_IFREG | 0644,
- ch->procdir)) == NULL)
- return init_escape(ch);
- new_file->data = (void *)new_file;
- new_file->read_proc = &munich_read_proc;
- new_file->write_proc = &munich_write_proc;
-// new_file->proc_iops = &comx_normal_inode_ops;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_FRAMING, S_IFREG | 0644,
- ch->procdir)) == NULL)
- return init_escape(ch);
- new_file->data = (void *)new_file;
- new_file->read_proc = &munich_read_proc;
- new_file->write_proc = &munich_write_proc;
-// new_file->proc_iops = &comx_normal_inode_ops;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_LINECODE, S_IFREG | 0644,
- ch->procdir)) == NULL)
- return init_escape(ch);
- new_file->data = (void *)new_file;
- new_file->read_proc = &munich_read_proc;
- new_file->write_proc = &munich_write_proc;
-// new_file->proc_iops = &comx_normal_inode_ops;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_CLOCK_SOURCE, S_IFREG | 0644,
- ch->procdir)) == NULL)
- return init_escape(ch);
- new_file->data = (void *)new_file;
- new_file->read_proc = &munich_read_proc;
- new_file->write_proc = &munich_write_proc;
-// new_file->proc_iops = &comx_normal_inode_ops;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_LOOPBACK, S_IFREG | 0644,
- ch->procdir)) == NULL)
- return init_escape(ch);
- new_file->data = (void *)new_file;
- new_file->read_proc = &munich_read_proc;
- new_file->write_proc = &munich_write_proc;
-// new_file->proc_iops = &comx_normal_inode_ops;
- new_file->nlink = 1;
- }
-
- /* DEL: ez itt csak fejlesztesi celokra!! */
- if ((new_file = create_proc_entry(FILENAME_REG, S_IFREG | 0200, ch->procdir)) == NULL)
- return init_escape(ch);
- new_file->data = (void *)new_file;
- new_file->read_proc = &munich_read_proc;
- new_file->write_proc = &munich_write_proc;
-// new_file->proc_iops = &comx_normal_inode_ops;
- new_file->nlink = 1;
-
- /* DEL: ez itt csak fejlesztesi celokra!! */
- if ((new_file = create_proc_entry(FILENAME_LBIREG, S_IFREG | 0200,
- ch->procdir)) == NULL)
- return init_escape(ch);
- new_file->data = (void *)new_file;
- new_file->read_proc = &munich_read_proc;
- new_file->write_proc = &munich_write_proc;
-// new_file->proc_iops = &comx_normal_inode_ops;
- new_file->nlink = 1;
-
- /* Fill in ch_struct hw specific pointers: */
-
- ch->HW_txe = MUNICH_txe;
- ch->HW_open = MUNICH_open;
- ch->HW_close = MUNICH_close;
- ch->HW_send_packet = MUNICH_send_packet;
-#ifndef COMX_NEW
- ch->HW_minden = MUNICH_minden;
-#else
- ch->HW_statistics = MUNICH_minden;
-#endif
-
- hw->boardnum = SLICECOM_BOARDNUM_DEFAULT;
- hw->timeslots = ch->hardware == &pcicomhw ? 0xffffffff : 2;
-
- /* O.K. Count one more user on this module */
- MOD_INC_USE_COUNT;
- return 0;
-}
-
-/*
- * Boardtype exit function.
- * Called by the comx (upper) layer, when you clear boardtype from munich.
- * Frees resources associated to using munich board for this device,
- * resets ch_struct pointers etc.
- */
-static int BOARD_exit(struct net_device *dev)
-{
- struct comx_channel *ch = netdev_priv(dev);
-
- /* Free private data area */
-// board = hw->boardnum + (ch->hardware == &pcicomhw ? pcicom_boards : slicecom_boards);
-
- kfree(ch->HW_privdata);
- /* Remove /proc files */
- remove_proc_entry(FILENAME_BOARDNUM, ch->procdir);
- if (ch->hardware == &slicecomhw)
- {
- remove_proc_entry(FILENAME_TIMESLOTS, ch->procdir);
- remove_proc_entry(FILENAME_FRAMING, ch->procdir);
- remove_proc_entry(FILENAME_LINECODE, ch->procdir);
- remove_proc_entry(FILENAME_CLOCK_SOURCE, ch->procdir);
- remove_proc_entry(FILENAME_LOOPBACK, ch->procdir);
- }
- remove_proc_entry(FILENAME_REG, ch->procdir);
- remove_proc_entry(FILENAME_LBIREG, ch->procdir);
-
- /* Minus one user for the module accounting */
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static struct comx_hardware slicecomhw =
-{
- "slicecom",
-#ifdef COMX_NEW
- VERSION,
-#endif
- BOARD_init,
- BOARD_exit,
- BOARD_dump,
- NULL
-};
-
-static struct comx_hardware pcicomhw =
-{
- "pcicom",
-#ifdef COMX_NEW
- VERSION,
-#endif
- BOARD_init,
- BOARD_exit,
- BOARD_dump,
- NULL
-};
-
-/* Module management */
-
-static int __init init_mister(void)
-{
- printk(VERSIONSTR);
- comx_register_hardware(&slicecomhw);
- comx_register_hardware(&pcicomhw);
- return munich_probe();
-}
-
-static void __exit cleanup_mister(void)
-{
- int i;
-
- comx_unregister_hardware("slicecom");
- comx_unregister_hardware("pcicom");
-
- for (i = 0; i < MAX_BOARDS; i++)
- {
- if (slicecom_boards[i].bar1)
- iounmap((void *)slicecom_boards[i].bar1);
- if (slicecom_boards[i].lbi)
- iounmap((void *)slicecom_boards[i].lbi);
- if (pcicom_boards[i].bar1)
- iounmap((void *)pcicom_boards[i].bar1);
- if (pcicom_boards[i].lbi)
- iounmap((void *)pcicom_boards[i].lbi);
- }
-}
-
-module_init(init_mister);
-module_exit(cleanup_mister);
+++ /dev/null
-/*
- * Frame-relay protocol module for the COMX driver
- * for Linux 2.2.X
- *
- * Original author: Tivadar Szemethy <tiv@itc.hu>
- * Maintainer: Gergely Madarasz <gorgo@itc.hu>
- *
- * Copyright (C) 1998-1999 ITConsult-Pro Co. <info@itc.hu>
- *
- * Contributors:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> (0.73)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Version 0.70 (99/06/14):
- * - cleaned up the source code a bit
- * - ported back to kernel, now works as builtin code
- *
- * Version 0.71 (99/06/25):
- * - use skb priorities and queues for sending keepalive
- * - use device queues for slave->master data transmit
- * - set IFF_RUNNING only line protocol up
- * - fixes on slave device flags
- *
- * Version 0.72 (99/07/09):
- * - handle slave tbusy with master tbusy (should be fixed)
- * - fix the keepalive timer addition/deletion
- *
- * Version 0.73 (00/08/15)
- * - resource release on failure at fr_master_init and
- * fr_slave_init
- */
-
-#define VERSION "0.73"
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/jiffies.h>
-#include <linux/netdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/if_arp.h>
-#include <linux/inetdevice.h>
-#include <linux/pkt_sched.h>
-#include <linux/init.h>
-
-#include <asm/uaccess.h>
-
-#include "comx.h"
-#include "comxhw.h"
-
-MODULE_AUTHOR("Author: Tivadar Szemethy <tiv@itc.hu>");
-MODULE_DESCRIPTION("Frame Relay protocol implementation for the COMX drivers"
- "for Linux kernel 2.4.X");
-MODULE_LICENSE("GPL");
-
-#define FRAD_UI 0x03
-#define NLPID_IP 0xcc
-#define NLPID_Q933_LMI 0x08
-#define NLPID_CISCO_LMI 0x09
-#define Q933_ENQ 0x75
-#define Q933_LINESTAT 0x51
-#define Q933_COUNTERS 0x53
-
-#define MAXALIVECNT 3 /* No. of failures */
-
-struct fr_data {
- u16 dlci;
- struct net_device *master;
- char keepa_pend;
- char keepa_freq;
- char keepalivecnt, keeploopcnt;
- struct timer_list keepa_timer;
- u8 local_cnt, remote_cnt;
-};
-
-static struct comx_protocol fr_master_protocol;
-static struct comx_protocol fr_slave_protocol;
-static struct comx_hardware fr_dlci;
-
-static void fr_keepalive_send(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
- struct sk_buff *skb;
- u8 *fr_packet;
-
- skb=alloc_skb(dev->hard_header_len + 13, GFP_ATOMIC);
-
- if(skb==NULL)
- return;
-
- skb_reserve(skb, dev->hard_header_len);
-
- fr_packet=(u8*)skb_put(skb, 13);
-
- fr_packet[0] = (fr->dlci & (1024 - 15)) >> 2;
- fr_packet[1] = (fr->dlci & 15) << 4 | 1; // EA bit 1
- fr_packet[2] = FRAD_UI;
- fr_packet[3] = NLPID_Q933_LMI;
- fr_packet[4] = 0;
- fr_packet[5] = Q933_ENQ;
- fr_packet[6] = Q933_LINESTAT;
- fr_packet[7] = 0x01;
- fr_packet[8] = 0x01;
- fr_packet[9] = Q933_COUNTERS;
- fr_packet[10] = 0x02;
- fr_packet[11] = ++fr->local_cnt;
- fr_packet[12] = fr->remote_cnt;
-
- skb->dev = dev;
- skb->priority = TC_PRIO_CONTROL;
- dev_queue_xmit(skb);
-}
-
-static void fr_keepalive_timerfun(unsigned long d)
-{
- struct net_device *dev = (struct net_device *)d;
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
- struct comx_channel *sch;
- struct fr_data *sfr;
- struct net_device *sdev;
-
- if (ch->init_status & LINE_OPEN) {
- if (fr->keepalivecnt == MAXALIVECNT) {
- comx_status(dev, ch->line_status & ~PROTO_UP);
- dev->flags &= ~IFF_RUNNING;
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
-
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_DLCI) &&
- (sfr = sch->LINE_privdata)
- && (sfr->master == dev) &&
- (sdev->flags & IFF_UP)) {
- sdev->flags &= ~IFF_RUNNING;
- comx_status(sdev,
- sch->line_status & ~PROTO_UP);
- }
- }
- }
- if (fr->keepalivecnt <= MAXALIVECNT) {
- ++fr->keepalivecnt;
- }
- fr_keepalive_send(dev);
- }
- mod_timer(&fr->keepa_timer, jiffies + HZ * fr->keepa_freq);
-}
-
-static void fr_rx_lmi(struct net_device *dev, struct sk_buff *skb,
- u16 dlci, u8 nlpid)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
- struct comx_channel *sch;
- struct fr_data *sfr;
- struct net_device *sdev;
-
- if (dlci != fr->dlci || nlpid != NLPID_Q933_LMI || !fr->keepa_freq) {
- return;
- }
-
- fr->remote_cnt = skb->data[7];
- if (skb->data[8] == fr->local_cnt) { // keepalive UP!
- fr->keepalivecnt = 0;
- if ((ch->line_status & LINE_UP) &&
- !(ch->line_status & PROTO_UP)) {
- comx_status(dev, ch->line_status |= PROTO_UP);
- dev->flags |= IFF_RUNNING;
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
-
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_DLCI) &&
- (sfr = sch->LINE_privdata)
- && (sfr->master == dev) &&
- (sdev->flags & IFF_UP)) {
- sdev->flags |= IFF_RUNNING;
- comx_status(sdev,
- sch->line_status | PROTO_UP);
- }
- }
- }
- }
-}
-
-static void fr_set_keepalive(struct net_device *dev, int keepa)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
-
- if (!keepa && fr->keepa_freq) { // switch off
- fr->keepa_freq = 0;
- if (ch->line_status & LINE_UP) {
- comx_status(dev, ch->line_status | PROTO_UP);
- dev->flags |= IFF_RUNNING;
- del_timer(&fr->keepa_timer);
- }
- return;
- }
-
- if (keepa) { // bekapcs
- if(fr->keepa_freq && (ch->line_status & LINE_UP)) {
- del_timer(&fr->keepa_timer);
- }
- fr->keepa_freq = keepa;
- fr->local_cnt = fr->remote_cnt = 0;
- init_timer(&fr->keepa_timer);
- fr->keepa_timer.expires = jiffies + HZ;
- fr->keepa_timer.function = fr_keepalive_timerfun;
- fr->keepa_timer.data = (unsigned long)dev;
- ch->line_status &= ~(PROTO_UP | PROTO_LOOP);
- dev->flags &= ~IFF_RUNNING;
- comx_status(dev, ch->line_status);
- if(ch->line_status & LINE_UP) {
- add_timer(&fr->keepa_timer);
- }
- }
-}
-
-static void fr_rx(struct net_device *dev, struct sk_buff *skb)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
- struct net_device *sdev = dev;
- struct comx_channel *sch;
- struct fr_data *sfr;
- u16 dlci;
- u8 nlpid;
-
- if(skb->len <= 4 || skb->data[2] != FRAD_UI) {
- kfree_skb(skb);
- return;
- }
-
- /* Itt majd ki kell talalni, melyik slave kapja a csomagot */
- dlci = ((skb->data[0] & 0xfc) << 2) | ((skb->data[1] & 0xf0) >> 4);
- if ((nlpid = skb->data[3]) == 0) { // Optional padding
- nlpid = skb->data[4];
- skb_pull(skb, 1);
- }
- skb_pull(skb, 4); /* DLCI and header throw away */
-
- if (ch->debug_flags & DEBUG_COMX_DLCI) {
- comx_debug(dev, "Frame received, DLCI: %d, NLPID: 0x%02x\n",
- dlci, nlpid);
- comx_debug_skb(dev, skb, "Contents");
- }
-
- /* Megkeressuk, kihez tartozik */
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_DLCI) && (sfr = sch->LINE_privdata) &&
- (sfr->master == dev) && (sfr->dlci == dlci)) {
- skb->dev = sdev;
- if (ch->debug_flags & DEBUG_COMX_DLCI) {
- comx_debug(dev, "Passing it to %s\n",sdev->name);
- }
- if (dev != sdev) {
- sch->stats.rx_packets++;
- sch->stats.rx_bytes += skb->len;
- }
- break;
- }
- }
- switch(nlpid) {
- case NLPID_IP:
- skb->protocol = htons(ETH_P_IP);
- skb->mac.raw = skb->data;
- comx_rx(sdev, skb);
- break;
- case NLPID_Q933_LMI:
- fr_rx_lmi(dev, skb, dlci, nlpid);
- default:
- kfree_skb(skb);
- break;
- }
-}
-
-static int fr_tx(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
- struct net_device *sdev;
- struct comx_channel *sch;
- struct fr_data *sfr;
- int cnt = 1;
-
- /* Ha minden igaz, 2 helyen fog allni a tbusy: a masternel,
- es annal a slave-nel aki eppen kuldott.
- Egy helyen akkor all, ha a master kuldott.
- Ez megint jo lesz majd, ha utemezni akarunk */
-
- /* This should be fixed, the slave tbusy should be set when
- the masters queue is full and reset when not */
-
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_DLCI) && (sfr = sch->LINE_privdata) &&
- (sfr->master == dev) && (netif_queue_stopped(sdev))) {
- netif_wake_queue(sdev);
- cnt++;
- }
- }
-
- netif_wake_queue(dev);
- return 0;
-}
-
-static void fr_status(struct net_device *dev, unsigned short status)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
- struct net_device *sdev;
- struct comx_channel *sch;
- struct fr_data *sfr;
-
- if (status & LINE_UP) {
- if (!fr->keepa_freq) {
- status |= PROTO_UP;
- }
- } else {
- status &= ~(PROTO_UP | PROTO_LOOP);
- }
-
- if (dev == fr->master && fr->keepa_freq) {
- if (status & LINE_UP) {
- fr->keepa_timer.expires = jiffies + HZ;
- add_timer(&fr->keepa_timer);
- fr->keepalivecnt = MAXALIVECNT + 1;
- fr->keeploopcnt = 0;
- } else {
- del_timer(&fr->keepa_timer);
- }
- }
-
- /* Itt a status valtozast vegig kell vinni az osszes slave-n */
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
-
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_FRAD || sdev->type == ARPHRD_DLCI) &&
- (sfr = sch->LINE_privdata) && (sfr->master == dev)) {
- if(status & LINE_UP) {
- netif_wake_queue(sdev);
- }
- comx_status(sdev, status);
- if(status & (PROTO_UP | PROTO_LOOP)) {
- dev->flags |= IFF_RUNNING;
- } else {
- dev->flags &= ~IFF_RUNNING;
- }
- }
- }
-}
-
-static int fr_open(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
- struct proc_dir_entry *comxdir = ch->procdir;
- struct comx_channel *mch;
-
- if (!(ch->init_status & HW_OPEN)) {
- return -ENODEV;
- }
-
- if ((ch->hardware == &fr_dlci && ch->protocol != &fr_slave_protocol) ||
- (ch->protocol == &fr_slave_protocol && ch->hardware != &fr_dlci)) {
- printk(KERN_ERR "Trying to open an improperly set FR interface, giving up\n");
- return -EINVAL;
- }
-
- if (!fr->master) {
- return -ENODEV;
- }
- mch = fr->master->priv;
- if (fr->master != dev && (!(mch->init_status & LINE_OPEN)
- || (mch->protocol != &fr_master_protocol))) {
- printk(KERN_ERR "Master %s is inactive, or incorrectly set up, "
- "unable to open %s\n", fr->master->name, dev->name);
- return -ENODEV;
- }
-
- ch->init_status |= LINE_OPEN;
- ch->line_status &= ~(PROTO_UP | PROTO_LOOP);
- dev->flags &= ~IFF_RUNNING;
-
- if (fr->master == dev) {
- if (fr->keepa_freq) {
- fr->keepa_timer.function = fr_keepalive_timerfun;
- fr->keepa_timer.data = (unsigned long)dev;
- add_timer(&fr->keepa_timer);
- } else {
- if (ch->line_status & LINE_UP) {
- ch->line_status |= PROTO_UP;
- dev->flags |= IFF_RUNNING;
- }
- }
- } else {
- ch->line_status = mch->line_status;
- if(fr->master->flags & IFF_RUNNING) {
- dev->flags |= IFF_RUNNING;
- }
- }
-
- for (; comxdir ; comxdir = comxdir->next) {
- if (strcmp(comxdir->name, FILENAME_DLCI) == 0 ||
- strcmp(comxdir->name, FILENAME_MASTER) == 0 ||
- strcmp(comxdir->name, FILENAME_KEEPALIVE) == 0) {
- comxdir->mode = S_IFREG | 0444;
- }
- }
-// comx_status(dev, ch->line_status);
- return 0;
-}
-
-static int fr_close(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
- struct proc_dir_entry *comxdir = ch->procdir;
-
- if (fr->master == dev) { // Ha master
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
- struct net_device *sdev = dev;
- struct comx_channel *sch;
- struct fr_data *sfr;
-
- if (!(ch->init_status & HW_OPEN)) {
- return -ENODEV;
- }
-
- if (fr->keepa_freq) {
- del_timer(&fr->keepa_timer);
- }
-
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_DLCI) &&
- (sfr = sch->LINE_privdata) &&
- (sfr->master == dev) &&
- (sch->init_status & LINE_OPEN)) {
- dev_close(sdev);
- }
- }
- }
-
- ch->init_status &= ~LINE_OPEN;
- ch->line_status &= ~(PROTO_UP | PROTO_LOOP);
- dev->flags &= ~IFF_RUNNING;
-
- for (; comxdir ; comxdir = comxdir->next) {
- if (strcmp(comxdir->name, FILENAME_DLCI) == 0 ||
- strcmp(comxdir->name, FILENAME_MASTER) == 0 ||
- strcmp(comxdir->name, FILENAME_KEEPALIVE) == 0) {
- comxdir->mode = S_IFREG | 0444;
- }
- }
-
- return 0;
-}
-
-static int fr_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct comx_channel *sch, *mch;
- struct fr_data *fr = ch->LINE_privdata;
- struct fr_data *sfr;
- struct net_device *sdev;
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
-
- if (!fr->master) {
- printk(KERN_ERR "BUG: fr_xmit without a master!!! dev: %s\n", dev->name);
- return 0;
- }
-
- mch = fr->master->priv;
-
- /* Ennek majd a slave utemezeskor lesz igazan jelentosege */
- if (ch->debug_flags & DEBUG_COMX_DLCI) {
- comx_debug_skb(dev, skb, "Sending frame");
- }
-
- if (dev != fr->master) {
- struct sk_buff *newskb=skb_clone(skb, GFP_ATOMIC);
- if (!newskb)
- return -ENOMEM;
- newskb->dev=fr->master;
- dev_queue_xmit(newskb);
- ch->stats.tx_bytes += skb->len;
- ch->stats.tx_packets++;
- dev_kfree_skb(skb);
- } else {
- netif_stop_queue(dev);
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_DLCI) && (sfr = sch->LINE_privdata) &&
- (sfr->master == dev) && (netif_queue_stopped(sdev))) {
- netif_stop_queue(sdev);
- }
- }
-
- switch(mch->HW_send_packet(dev, skb)) {
- case FRAME_QUEUED:
- netif_wake_queue(dev);
- break;
- case FRAME_ACCEPTED:
- case FRAME_DROPPED:
- break;
- case FRAME_ERROR:
- printk(KERN_ERR "%s: Transmit frame error (len %d)\n",
- dev->name, skb->len);
- break;
- }
- }
- return 0;
-}
-
-static int fr_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, void *daddr, void *saddr, unsigned len)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
-
- skb_push(skb, dev->hard_header_len);
- /* Put in DLCI */
- skb->data[0] = (fr->dlci & (1024 - 15)) >> 2;
- skb->data[1] = (fr->dlci & 15) << 4 | 1; // EA bit 1
- skb->data[2] = FRAD_UI;
- skb->data[3] = NLPID_IP;
-
- return dev->hard_header_len;
-}
-
-static int fr_statistics(struct net_device *dev, char *page)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
- int len = 0;
-
- if (fr->master == dev) {
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
- struct net_device *sdev;
- struct comx_channel *sch;
- struct fr_data *sfr;
- int slaves = 0;
-
- len += sprintf(page + len,
- "This is a Frame Relay master device\nSlaves: ");
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_DLCI) &&
- (sfr = sch->LINE_privdata) &&
- (sfr->master == dev) && (sdev != dev)) {
- slaves++;
- len += sprintf(page + len, "%s ", sdev->name);
- }
- }
- len += sprintf(page + len, "%s\n", slaves ? "" : "(none)");
- if (fr->keepa_freq) {
- len += sprintf(page + len, "Line keepalive (value %d) "
- "status %s [%d]\n", fr->keepa_freq,
- ch->line_status & PROTO_LOOP ? "LOOP" :
- ch->line_status & PROTO_UP ? "UP" : "DOWN",
- fr->keepalivecnt);
- } else {
- len += sprintf(page + len, "Line keepalive protocol "
- "is not set\n");
- }
- } else { // if slave
- len += sprintf(page + len,
- "This is a Frame Relay slave device, master: %s\n",
- fr->master ? fr->master->name : "(not set)");
- }
- return len;
-}
-
-static int fr_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct proc_dir_entry *file = (struct proc_dir_entry *)data;
- struct net_device *dev = file->parent->data;
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = NULL;
- int len = 0;
-
- if (ch) {
- fr = ch->LINE_privdata;
- }
-
- if (strcmp(file->name, FILENAME_DLCI) == 0) {
- len = sprintf(page, "%04d\n", fr->dlci);
- } else if (strcmp(file->name, FILENAME_MASTER) == 0) {
- len = sprintf(page, "%-9s\n", fr->master ? fr->master->name :
- "(none)");
- } else if (strcmp(file->name, FILENAME_KEEPALIVE) == 0) {
- len = fr->keepa_freq ? sprintf(page, "% 3d\n", fr->keepa_freq)
- : sprintf(page, "off\n");
- } else {
- printk(KERN_ERR "comxfr: internal error, filename %s\n", file->name);
- return -EBADF;
- }
-
- if (off >= len) {
- *eof = 1;
- return 0;
- }
-
- *start = page + off;
- if (count >= len - off) *eof = 1;
- return min_t(int, count, len - off);
-}
-
-static int fr_write_proc(struct file *file, const char *buffer,
- u_long count, void *data)
-{
- struct proc_dir_entry *entry = (struct proc_dir_entry *)data;
- struct net_device *dev = entry->parent->data;
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = NULL;
- char *page;
-
- if (ch) {
- fr = ch->LINE_privdata;
- }
-
- if (!(page = (char *)__get_free_page(GFP_KERNEL))) {
- return -ENOMEM;
- }
-
- if (copy_from_user(page, buffer, count)) {
- free_page((unsigned long)page);
- return -EFAULT;
- }
- if (*(page + count - 1) == '\n') {
- *(page + count - 1) = 0;
- }
-
- if (strcmp(entry->name, FILENAME_DLCI) == 0) {
- u16 dlci_new = simple_strtoul(page, NULL, 10);
-
- if (dlci_new > 1023) {
- printk(KERN_ERR "Invalid DLCI value\n");
- }
- else fr->dlci = dlci_new;
- } else if (strcmp(entry->name, FILENAME_MASTER) == 0) {
- struct net_device *new_master = dev_get_by_name(page);
-
- if (new_master && new_master->type == ARPHRD_FRAD) {
- struct comx_channel *sch = new_master->priv;
- struct fr_data *sfr = sch->LINE_privdata;
-
- if (sfr && sfr->master == new_master) {
- if(fr->master)
- dev_put(fr->master);
- fr->master = new_master;
- /* Megorokli a master statuszat */
- ch->line_status = sch->line_status;
- }
- }
- } else if (strcmp(entry->name, FILENAME_KEEPALIVE) == 0) {
- int keepa_new = -1;
-
- if (strcmp(page, KEEPALIVE_OFF) == 0) {
- keepa_new = 0;
- } else {
- keepa_new = simple_strtoul(page, NULL, 10);
- }
-
- if (keepa_new < 0 || keepa_new > 100) {
- printk(KERN_ERR "invalid keepalive\n");
- } else {
- if (fr->keepa_freq && keepa_new != fr->keepa_freq) {
- fr_set_keepalive(dev, 0);
- }
- if (keepa_new) {
- fr_set_keepalive(dev, keepa_new);
- }
- }
- } else {
- printk(KERN_ERR "comxfr_write_proc: internal error, filename %s\n",
- entry->name);
- count = -EBADF;
- }
-
- free_page((unsigned long)page);
- return count;
-}
-
-static int fr_exit(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
- struct net_device *sdev = dev;
- struct comx_channel *sch;
- struct fr_data *sfr;
- struct proc_dir_entry *dir = ch->procdir->parent->subdir;
-
- /* Ha lezarunk egy master-t, le kell kattintani a slave-eket is */
- if (fr->master && fr->master == dev) {
- for (; dir ; dir = dir->next) {
- if(!S_ISDIR(dir->mode)) {
- continue;
- }
- if ((sdev = dir->data) && (sch = sdev->priv) &&
- (sdev->type == ARPHRD_DLCI) &&
- (sfr = sch->LINE_privdata) && (sfr->master == dev)) {
- dev_close(sdev);
- sfr->master = NULL;
- }
- }
- }
- dev->flags = 0;
- dev->type = 0;
- dev->mtu = 0;
- dev->hard_header_len = 0;
-
- ch->LINE_rx = NULL;
- ch->LINE_tx = NULL;
- ch->LINE_status = NULL;
- ch->LINE_open = NULL;
- ch->LINE_close = NULL;
- ch->LINE_xmit = NULL;
- ch->LINE_header = NULL;
- ch->LINE_rebuild_header = NULL;
- ch->LINE_statistics = NULL;
-
- ch->LINE_status = 0;
-
- if (fr->master != dev) { // if not master, remove dlci
- if(fr->master)
- dev_put(fr->master);
- remove_proc_entry(FILENAME_DLCI, ch->procdir);
- remove_proc_entry(FILENAME_MASTER, ch->procdir);
- } else {
- if (fr->keepa_freq) {
- fr_set_keepalive(dev, 0);
- }
- remove_proc_entry(FILENAME_KEEPALIVE, ch->procdir);
- remove_proc_entry(FILENAME_DLCI, ch->procdir);
- }
-
- kfree(fr);
- ch->LINE_privdata = NULL;
-
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static int fr_master_init(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr;
- struct proc_dir_entry *new_file;
-
- if ((fr = ch->LINE_privdata = kmalloc(sizeof(struct fr_data),
- GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
- memset(fr, 0, sizeof(struct fr_data));
- fr->master = dev; // this means master
- fr->dlci = 0; // let's say default
-
- dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
- dev->type = ARPHRD_FRAD;
- dev->mtu = 1500;
- dev->hard_header_len = 4;
- dev->addr_len = 0;
-
- ch->LINE_rx = fr_rx;
- ch->LINE_tx = fr_tx;
- ch->LINE_status = fr_status;
- ch->LINE_open = fr_open;
- ch->LINE_close = fr_close;
- ch->LINE_xmit = fr_xmit;
- ch->LINE_header = fr_header;
- ch->LINE_rebuild_header = NULL;
- ch->LINE_statistics = fr_statistics;
-
- if ((new_file = create_proc_entry(FILENAME_DLCI, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_LINE_privdata;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &fr_read_proc;
- new_file->write_proc = &fr_write_proc;
- new_file->size = 5;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_KEEPALIVE, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_dlci;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &fr_read_proc;
- new_file->write_proc = &fr_write_proc;
- new_file->size = 4;
- new_file->nlink = 1;
-
- fr_set_keepalive(dev, 0);
-
- MOD_INC_USE_COUNT;
- return 0;
-cleanup_filename_dlci:
- remove_proc_entry(FILENAME_DLCI, ch->procdir);
-cleanup_LINE_privdata:
- kfree(fr);
- return -EIO;
-}
-
-static int fr_slave_init(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr;
- struct proc_dir_entry *new_file;
-
- if ((fr = ch->LINE_privdata = kmalloc(sizeof(struct fr_data),
- GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
- memset(fr, 0, sizeof(struct fr_data));
-
- dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
- dev->type = ARPHRD_DLCI;
- dev->mtu = 1500;
- dev->hard_header_len = 4;
- dev->addr_len = 0;
-
- ch->LINE_rx = fr_rx;
- ch->LINE_tx = fr_tx;
- ch->LINE_status = fr_status;
- ch->LINE_open = fr_open;
- ch->LINE_close = fr_close;
- ch->LINE_xmit = fr_xmit;
- ch->LINE_header = fr_header;
- ch->LINE_rebuild_header = NULL;
- ch->LINE_statistics = fr_statistics;
-
- if ((new_file = create_proc_entry(FILENAME_DLCI, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_LINE_privdata;
- }
-
- new_file->data = (void *)new_file;
- new_file->read_proc = &fr_read_proc;
- new_file->write_proc = &fr_write_proc;
- new_file->size = 5;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_MASTER, S_IFREG | 0644,
- ch->procdir)) == NULL) {
- goto cleanup_filename_dlci;
- }
- new_file->data = (void *)new_file;
- new_file->read_proc = &fr_read_proc;
- new_file->write_proc = &fr_write_proc;
- new_file->size = 10;
- new_file->nlink = 1;
- MOD_INC_USE_COUNT;
- return 0;
-cleanup_filename_dlci:
- remove_proc_entry(FILENAME_DLCI, ch->procdir);
-cleanup_LINE_privdata:
- kfree(fr);
- return -EIO;
-}
-
-static int dlci_open(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- ch->init_status |= HW_OPEN;
-
- MOD_INC_USE_COUNT;
- return 0;
-}
-
-static int dlci_close(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- ch->init_status &= ~HW_OPEN;
-
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static int dlci_txe(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct fr_data *fr = ch->LINE_privdata;
-
- if (!fr->master) {
- return 0;
- }
-
- ch = fr->master->priv;
- fr = ch->LINE_privdata;
- return ch->HW_txe(fr->master);
-}
-
-static int dlci_statistics(struct net_device *dev, char *page)
-{
- return 0;
-}
-
-static int dlci_init(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- ch->HW_open = dlci_open;
- ch->HW_close = dlci_close;
- ch->HW_txe = dlci_txe;
- ch->HW_statistics = dlci_statistics;
-
- /* Nincs egyeb hw info, mert ugyis a fr->master-bol fog minden kiderulni */
-
- MOD_INC_USE_COUNT;
- return 0;
-}
-
-static int dlci_exit(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- ch->HW_open = NULL;
- ch->HW_close = NULL;
- ch->HW_txe = NULL;
- ch->HW_statistics = NULL;
-
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static int dlci_dump(struct net_device *dev)
-{
- printk(KERN_INFO "dlci_dump %s, HOGY MI ???\n", dev->name);
- return -1;
-}
-
-static struct comx_protocol fr_master_protocol = {
- .name = "frad",
- .version = VERSION,
- .encap_type = ARPHRD_FRAD,
- .line_init = fr_master_init,
- .line_exit = fr_exit,
-};
-
-static struct comx_protocol fr_slave_protocol = {
- .name = "ietf-ip",
- .version = VERSION,
- .encap_type = ARPHRD_DLCI,
- .line_init = fr_slave_init,
- .line_exit = fr_exit,
-};
-
-static struct comx_hardware fr_dlci = {
- .name = "dlci",
- .version = VERSION,
- .hw_init = dlci_init,
- .hw_exit = dlci_exit,
- .hw_dump = dlci_dump,
-};
-
-static int __init comx_proto_fr_init(void)
-{
- int ret;
-
- if ((ret = comx_register_hardware(&fr_dlci))) {
- return ret;
- }
- if ((ret = comx_register_protocol(&fr_master_protocol))) {
- return ret;
- }
- return comx_register_protocol(&fr_slave_protocol);
-}
-
-static void __exit comx_proto_fr_exit(void)
-{
- comx_unregister_hardware(fr_dlci.name);
- comx_unregister_protocol(fr_master_protocol.name);
- comx_unregister_protocol(fr_slave_protocol.name);
-}
-
-module_init(comx_proto_fr_init);
-module_exit(comx_proto_fr_exit);
+++ /dev/null
-/*
- * LAPB protocol module for the COMX driver
- * for Linux kernel 2.2.X
- *
- * Original author: Tivadar Szemethy <tiv@itc.hu>
- * Maintainer: Gergely Madarasz <gorgo@itc.hu>
- *
- * Copyright (C) 1997-1999 (C) ITConsult-Pro Co. <info@itc.hu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Version 0.80 (99/06/14):
- * - cleaned up the source code a bit
- * - ported back to kernel, now works as non-module
- *
- * Changed (00/10/29, Henner Eisen):
- * - comx_rx() / comxlapb_data_indication() return status.
- *
- */
-
-#define VERSION "0.80"
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/if_arp.h>
-#include <linux/inetdevice.h>
-#include <asm/uaccess.h>
-#include <linux/lapb.h>
-#include <linux/init.h>
-
-#include "comx.h"
-#include "comxhw.h"
-
-static struct proc_dir_entry *create_comxlapb_proc_entry(char *name, int mode,
- int size, struct proc_dir_entry *dir);
-
-static void comxlapb_rx(struct net_device *dev, struct sk_buff *skb)
-{
- if (!dev || !dev->priv) {
- dev_kfree_skb(skb);
- } else {
- lapb_data_received(dev, skb);
- }
-}
-
-static int comxlapb_tx(struct net_device *dev)
-{
- netif_wake_queue(dev);
- return 0;
-}
-
-static int comxlapb_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, void *daddr, void *saddr, unsigned len)
-{
- return dev->hard_header_len;
-}
-
-static void comxlapb_status(struct net_device *dev, unsigned short status)
-{
- struct comx_channel *ch;
-
- if (!dev || !(ch = dev->priv)) {
- return;
- }
- if (status & LINE_UP) {
- netif_wake_queue(dev);
- }
- comx_status(dev, status);
-}
-
-static int comxlapb_open(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- int err = 0;
-
- if (!(ch->init_status & HW_OPEN)) {
- return -ENODEV;
- }
-
- err = lapb_connect_request(dev);
-
- if (ch->debug_flags & DEBUG_COMX_LAPB) {
- comx_debug(dev, "%s: lapb opened, error code: %d\n",
- dev->name, err);
- }
-
- if (!err) {
- ch->init_status |= LINE_OPEN;
- MOD_INC_USE_COUNT;
- }
- return err;
-}
-
-static int comxlapb_close(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- if (!(ch->init_status & HW_OPEN)) {
- return -ENODEV;
- }
-
- if (ch->debug_flags & DEBUG_COMX_LAPB) {
- comx_debug(dev, "%s: lapb closed\n", dev->name);
- }
-
- lapb_disconnect_request(dev);
-
- ch->init_status &= ~LINE_OPEN;
- ch->line_status &= ~PROTO_UP;
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static int comxlapb_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct sk_buff *skb2;
-
- if (!dev || !(ch = dev->priv) || !(dev->flags & (IFF_UP | IFF_RUNNING))) {
- return -ENODEV;
- }
-
- if (dev->type == ARPHRD_X25) { // first byte tells what to do
- switch(skb->data[0]) {
- case 0x00:
- break; // transmit
- case 0x01:
- lapb_connect_request(dev);
- kfree_skb(skb);
- return 0;
- case 0x02:
- lapb_disconnect_request(dev);
- default:
- kfree_skb(skb);
- return 0;
- }
- skb_pull(skb,1);
- }
-
- netif_stop_queue(dev);
-
- if ((skb2 = skb_clone(skb, GFP_ATOMIC)) != NULL) {
- lapb_data_request(dev, skb2);
- }
-
- return FRAME_ACCEPTED;
-}
-
-static int comxlapb_statistics(struct net_device *dev, char *page)
-{
- struct lapb_parms_struct parms;
- int len = 0;
-
- len += sprintf(page + len, "Line status: ");
- if (lapb_getparms(dev, &parms) != LAPB_OK) {
- len += sprintf(page + len, "not initialized\n");
- return len;
- }
- len += sprintf(page + len, "%s (%s), T1: %d/%d, T2: %d/%d, N2: %d/%d, "
- "window: %d\n", parms.mode & LAPB_DCE ? "DCE" : "DTE",
- parms.mode & LAPB_EXTENDED ? "EXTENDED" : "STANDARD",
- parms.t1timer, parms.t1, parms.t2timer, parms.t2,
- parms.n2count, parms.n2, parms.window);
-
- return len;
-}
-
-static int comxlapb_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct proc_dir_entry *file = (struct proc_dir_entry *)data;
- struct net_device *dev = file->parent->data;
- struct lapb_parms_struct parms;
- int len = 0;
-
- if (lapb_getparms(dev, &parms)) {
- return -ENODEV;
- }
-
- if (strcmp(file->name, FILENAME_T1) == 0) {
- len += sprintf(page + len, "%02u / %02u\n",
- parms.t1timer, parms.t1);
- } else if (strcmp(file->name, FILENAME_T2) == 0) {
- len += sprintf(page + len, "%02u / %02u\n",
- parms.t2timer, parms.t2);
- } else if (strcmp(file->name, FILENAME_N2) == 0) {
- len += sprintf(page + len, "%02u / %02u\n",
- parms.n2count, parms.n2);
- } else if (strcmp(file->name, FILENAME_WINDOW) == 0) {
- len += sprintf(page + len, "%u\n", parms.window);
- } else if (strcmp(file->name, FILENAME_MODE) == 0) {
- len += sprintf(page + len, "%s, %s\n",
- parms.mode & LAPB_DCE ? "DCE" : "DTE",
- parms.mode & LAPB_EXTENDED ? "EXTENDED" : "STANDARD");
- } else {
- printk(KERN_ERR "comxlapb: internal error, filename %s\n", file->name);
- return -EBADF;
- }
-
- if (off >= len) {
- *eof = 1;
- return 0;
- }
-
- *start = page + off;
- if (count >= len - off) {
- *eof = 1;
- }
- return min_t(int, count, len - off);
-}
-
-static int comxlapb_write_proc(struct file *file, const char *buffer,
- u_long count, void *data)
-{
- struct proc_dir_entry *entry = (struct proc_dir_entry *)data;
- struct net_device *dev = entry->parent->data;
- struct lapb_parms_struct parms;
- unsigned long parm;
- char *page;
-
- if (lapb_getparms(dev, &parms)) {
- return -ENODEV;
- }
-
- if (!(page = (char *)__get_free_page(GFP_KERNEL))) {
- return -ENOMEM;
- }
-
- if (copy_from_user(page, buffer, count)) {
- free_page((unsigned long)page);
- return -EFAULT;
- }
- if (*(page + count - 1) == '\n') {
- *(page + count - 1) = 0;
- }
-
- if (strcmp(entry->name, FILENAME_T1) == 0) {
- parm=simple_strtoul(page,NULL,10);
- if (parm > 0 && parm < 100) {
- parms.t1=parm;
- lapb_setparms(dev, &parms);
- }
- } else if (strcmp(entry->name, FILENAME_T2) == 0) {
- parm=simple_strtoul(page, NULL, 10);
- if (parm > 0 && parm < 100) {
- parms.t2=parm;
- lapb_setparms(dev, &parms);
- }
- } else if (strcmp(entry->name, FILENAME_N2) == 0) {
- parm=simple_strtoul(page, NULL, 10);
- if (parm > 0 && parm < 100) {
- parms.n2=parm;
- lapb_setparms(dev, &parms);
- }
- } else if (strcmp(entry->name, FILENAME_WINDOW) == 0) {
- parms.window = simple_strtoul(page, NULL, 10);
- lapb_setparms(dev, &parms);
- } else if (strcmp(entry->name, FILENAME_MODE) == 0) {
- if (comx_strcasecmp(page, "dte") == 0) {
- parms.mode &= ~(LAPB_DCE | LAPB_DTE);
- parms.mode |= LAPB_DTE;
- } else if (comx_strcasecmp(page, "dce") == 0) {
- parms.mode &= ~(LAPB_DTE | LAPB_DCE);
- parms.mode |= LAPB_DCE;
- } else if (comx_strcasecmp(page, "std") == 0 ||
- comx_strcasecmp(page, "standard") == 0) {
- parms.mode &= ~LAPB_EXTENDED;
- parms.mode |= LAPB_STANDARD;
- } else if (comx_strcasecmp(page, "ext") == 0 ||
- comx_strcasecmp(page, "extended") == 0) {
- parms.mode &= ~LAPB_STANDARD;
- parms.mode |= LAPB_EXTENDED;
- }
- lapb_setparms(dev, &parms);
- } else {
- printk(KERN_ERR "comxlapb_write_proc: internal error, filename %s\n",
- entry->name);
- return -EBADF;
- }
-
- free_page((unsigned long)page);
- return count;
-}
-
-static void comxlapb_connected(struct net_device *dev, int reason)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *comxdir = ch->procdir->subdir;
-
- if (ch->debug_flags & DEBUG_COMX_LAPB) {
- comx_debug(ch->dev, "%s: lapb connected, reason: %d\n",
- ch->dev->name, reason);
- }
-
- if (ch->dev->type == ARPHRD_X25) {
- unsigned char *p;
- struct sk_buff *skb;
-
- if ((skb = dev_alloc_skb(1)) == NULL) {
- printk(KERN_ERR "comxlapb: out of memory!\n");
- return;
- }
- p = skb_put(skb,1);
- *p = 0x01; // link established
- skb->dev = ch->dev;
- skb->protocol = htons(ETH_P_X25);
- skb->mac.raw = skb->data;
- skb->pkt_type = PACKET_HOST;
-
- netif_rx(skb);
- ch->dev->last_rx = jiffies;
- }
-
- for (; comxdir; comxdir = comxdir->next) {
- if (strcmp(comxdir->name, FILENAME_MODE) == 0) {
- comxdir->mode = S_IFREG | 0444;
- }
- }
-
-
- ch->line_status |= PROTO_UP;
- comx_status(ch->dev, ch->line_status);
-}
-
-static void comxlapb_disconnected(struct net_device *dev, int reason)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *comxdir = ch->procdir->subdir;
-
- if (ch->debug_flags & DEBUG_COMX_LAPB) {
- comx_debug(ch->dev, "%s: lapb disconnected, reason: %d\n",
- ch->dev->name, reason);
- }
-
- if (ch->dev->type == ARPHRD_X25) {
- unsigned char *p;
- struct sk_buff *skb;
-
- if ((skb = dev_alloc_skb(1)) == NULL) {
- printk(KERN_ERR "comxlapb: out of memory!\n");
- return;
- }
- p = skb_put(skb,1);
- *p = 0x02; // link disconnected
- skb->dev = ch->dev;
- skb->protocol = htons(ETH_P_X25);
- skb->mac.raw = skb->data;
- skb->pkt_type = PACKET_HOST;
-
- netif_rx(skb);
- ch->dev->last_rx = jiffies;
- }
-
- for (; comxdir; comxdir = comxdir->next) {
- if (strcmp(comxdir->name, FILENAME_MODE) == 0) {
- comxdir->mode = S_IFREG | 0644;
- }
- }
-
- ch->line_status &= ~PROTO_UP;
- comx_status(ch->dev, ch->line_status);
-}
-
-static int comxlapb_data_indication(struct net_device *dev, struct sk_buff *skb)
-{
- struct comx_channel *ch = dev->priv;
-
- if (ch->dev->type == ARPHRD_X25) {
- skb_push(skb, 1);
-
- if (skb_cow(skb, 1))
- return NET_RX_DROP;
-
- skb->data[0] = 0; // indicate data for X25
- skb->protocol = htons(ETH_P_X25);
- } else {
- skb->protocol = htons(ETH_P_IP);
- }
-
- skb->dev = ch->dev;
- skb->mac.raw = skb->data;
- return comx_rx(ch->dev, skb);
-}
-
-static void comxlapb_data_transmit(struct net_device *dev, struct sk_buff *skb)
-{
- struct comx_channel *ch = dev->priv;
-
- if (ch->HW_send_packet) {
- ch->HW_send_packet(ch->dev, skb);
- }
-}
-
-static int comxlapb_exit(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- dev->flags = 0;
- dev->type = 0;
- dev->mtu = 0;
- dev->hard_header_len = 0;
-
- ch->LINE_rx = NULL;
- ch->LINE_tx = NULL;
- ch->LINE_status = NULL;
- ch->LINE_open = NULL;
- ch->LINE_close = NULL;
- ch->LINE_xmit = NULL;
- ch->LINE_header = NULL;
- ch->LINE_statistics = NULL;
-
- if (ch->debug_flags & DEBUG_COMX_LAPB) {
- comx_debug(dev, "%s: unregistering lapb\n", dev->name);
- }
- lapb_unregister(dev);
-
- remove_proc_entry(FILENAME_T1, ch->procdir);
- remove_proc_entry(FILENAME_T2, ch->procdir);
- remove_proc_entry(FILENAME_N2, ch->procdir);
- remove_proc_entry(FILENAME_MODE, ch->procdir);
- remove_proc_entry(FILENAME_WINDOW, ch->procdir);
-
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static int comxlapb_init(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct lapb_register_struct lapbreg;
-
- dev->mtu = 1500;
- dev->hard_header_len = 4;
- dev->addr_len = 0;
-
- ch->LINE_rx = comxlapb_rx;
- ch->LINE_tx = comxlapb_tx;
- ch->LINE_status = comxlapb_status;
- ch->LINE_open = comxlapb_open;
- ch->LINE_close = comxlapb_close;
- ch->LINE_xmit = comxlapb_xmit;
- ch->LINE_header = comxlapb_header;
- ch->LINE_statistics = comxlapb_statistics;
-
- lapbreg.connect_confirmation = comxlapb_connected;
- lapbreg.connect_indication = comxlapb_connected;
- lapbreg.disconnect_confirmation = comxlapb_disconnected;
- lapbreg.disconnect_indication = comxlapb_disconnected;
- lapbreg.data_indication = comxlapb_data_indication;
- lapbreg.data_transmit = comxlapb_data_transmit;
- if (lapb_register(dev, &lapbreg)) {
- return -ENOMEM;
- }
- if (ch->debug_flags & DEBUG_COMX_LAPB) {
- comx_debug(dev, "%s: lapb registered\n", dev->name);
- }
-
- if (!create_comxlapb_proc_entry(FILENAME_T1, 0644, 8, ch->procdir)) {
- return -ENOMEM;
- }
- if (!create_comxlapb_proc_entry(FILENAME_T2, 0644, 8, ch->procdir)) {
- return -ENOMEM;
- }
- if (!create_comxlapb_proc_entry(FILENAME_N2, 0644, 8, ch->procdir)) {
- return -ENOMEM;
- }
- if (!create_comxlapb_proc_entry(FILENAME_MODE, 0644, 14, ch->procdir)) {
- return -ENOMEM;
- }
- if (!create_comxlapb_proc_entry(FILENAME_WINDOW, 0644, 0, ch->procdir)) {
- return -ENOMEM;
- }
-
- MOD_INC_USE_COUNT;
- return 0;
-}
-
-static int comxlapb_init_lapb(struct net_device *dev)
-{
- dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
- dev->type = ARPHRD_LAPB;
-
- return(comxlapb_init(dev));
-}
-
-static int comxlapb_init_x25(struct net_device *dev)
-{
- dev->flags = IFF_NOARP;
- dev->type = ARPHRD_X25;
-
- return(comxlapb_init(dev));
-}
-
-static struct proc_dir_entry *create_comxlapb_proc_entry(char *name, int mode,
- int size, struct proc_dir_entry *dir)
-{
- struct proc_dir_entry *new_file;
-
- if ((new_file = create_proc_entry(name, S_IFREG | mode, dir)) != NULL) {
- new_file->data = (void *)new_file;
- new_file->read_proc = &comxlapb_read_proc;
- new_file->write_proc = &comxlapb_write_proc;
- new_file->size = size;
- new_file->nlink = 1;
- }
- return(new_file);
-}
-
-static struct comx_protocol comxlapb_protocol = {
- "lapb",
- VERSION,
- ARPHRD_LAPB,
- comxlapb_init_lapb,
- comxlapb_exit,
- NULL
-};
-
-static struct comx_protocol comx25_protocol = {
- "x25",
- VERSION,
- ARPHRD_X25,
- comxlapb_init_x25,
- comxlapb_exit,
- NULL
-};
-
-static int __init comx_proto_lapb_init(void)
-{
- int ret;
-
- if ((ret = comx_register_protocol(&comxlapb_protocol)) != 0) {
- return ret;
- }
- return comx_register_protocol(&comx25_protocol);
-}
-
-static void __exit comx_proto_lapb_exit(void)
-{
- comx_unregister_protocol(comxlapb_protocol.name);
- comx_unregister_protocol(comx25_protocol.name);
-}
-
-module_init(comx_proto_lapb_init);
-module_exit(comx_proto_lapb_exit);
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Synchronous PPP / Cisco-HDLC driver for the COMX boards
- *
- * Author: Gergely Madarasz <gorgo@itc.hu>
- *
- * based on skeleton code by Tivadar Szemethy <tiv@itc.hu>
- *
- * Copyright (C) 1999 ITConsult-Pro Co. <info@itc.hu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- *
- * Version 0.10 (99/06/10):
- * - written the first code :)
- *
- * Version 0.20 (99/06/16):
- * - added hdlc protocol
- * - protocol up is IFF_RUNNING
- *
- * Version 0.21 (99/07/15):
- * - some small fixes with the line status
- *
- * Version 0.22 (99/08/05):
- * - don't test IFF_RUNNING but the pp_link_state of the sppp
- *
- * Version 0.23 (99/12/02):
- * - tbusy fixes
- *
- */
-
-#define VERSION "0.23"
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/jiffies.h>
-#include <linux/netdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/if_arp.h>
-#include <linux/inetdevice.h>
-#include <asm/uaccess.h>
-#include <linux/init.h>
-
-#include <net/syncppp.h>
-#include "comx.h"
-
-MODULE_AUTHOR("Author: Gergely Madarasz <gorgo@itc.hu>");
-MODULE_DESCRIPTION("Cisco-HDLC / Synchronous PPP driver for the COMX sync serial boards");
-MODULE_LICENSE("GPL");
-
-static struct comx_protocol syncppp_protocol;
-static struct comx_protocol hdlc_protocol;
-
-struct syncppp_data {
- struct timer_list status_timer;
-};
-
-static void syncppp_status_timerfun(unsigned long d) {
- struct net_device *dev=(struct net_device *)d;
- struct comx_channel *ch=dev->priv;
- struct syncppp_data *spch=ch->LINE_privdata;
- struct sppp *sp = (struct sppp *)sppp_of(dev);
-
- if(!(ch->line_status & PROTO_UP) &&
- (sp->pp_link_state==SPPP_LINK_UP)) {
- comx_status(dev, ch->line_status | PROTO_UP);
- }
- if((ch->line_status & PROTO_UP) &&
- (sp->pp_link_state==SPPP_LINK_DOWN)) {
- comx_status(dev, ch->line_status & ~PROTO_UP);
- }
- mod_timer(&spch->status_timer,jiffies + HZ*3);
-}
-
-static int syncppp_tx(struct net_device *dev)
-{
- struct comx_channel *ch=dev->priv;
-
- if(ch->line_status & LINE_UP) {
- netif_wake_queue(dev);
- }
- return 0;
-}
-
-static void syncppp_status(struct net_device *dev, unsigned short status)
-{
- status &= ~(PROTO_UP | PROTO_LOOP);
- if(status & LINE_UP) {
- netif_wake_queue(dev);
- sppp_open(dev);
- } else {
- /* Line went down */
- netif_stop_queue(dev);
- sppp_close(dev);
- }
- comx_status(dev, status);
-}
-
-static int syncppp_open(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct syncppp_data *spch = ch->LINE_privdata;
-
- if (!(ch->init_status & HW_OPEN)) return -ENODEV;
-
- ch->init_status |= LINE_OPEN;
- ch->line_status &= ~(PROTO_UP | PROTO_LOOP);
-
- if(ch->line_status & LINE_UP) {
- sppp_open(dev);
- }
-
- init_timer(&spch->status_timer);
- spch->status_timer.function=syncppp_status_timerfun;
- spch->status_timer.data=(unsigned long)dev;
- spch->status_timer.expires=jiffies + HZ*3;
- add_timer(&spch->status_timer);
-
- return 0;
-}
-
-static int syncppp_close(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct syncppp_data *spch = ch->LINE_privdata;
-
- if (!(ch->init_status & HW_OPEN)) return -ENODEV;
- del_timer(&spch->status_timer);
-
- sppp_close(dev);
-
- ch->init_status &= ~LINE_OPEN;
- ch->line_status &= ~(PROTO_UP | PROTO_LOOP);
-
- return 0;
-}
-
-static int syncppp_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- netif_stop_queue(dev);
- switch(ch->HW_send_packet(dev, skb)) {
- case FRAME_QUEUED:
- netif_wake_queue(dev);
- break;
- case FRAME_ACCEPTED:
- case FRAME_DROPPED:
- break;
- case FRAME_ERROR:
- printk(KERN_ERR "%s: Transmit frame error (len %d)\n",
- dev->name, skb->len);
- break;
- }
- return 0;
-}
-
-
-static int syncppp_statistics(struct net_device *dev, char *page)
-{
- int len = 0;
-
- len += sprintf(page + len, " ");
- return len;
-}
-
-
-static int syncppp_exit(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- sppp_detach(dev);
-
- dev->flags = 0;
- dev->type = 0;
- dev->mtu = 0;
-
- ch->LINE_rx = NULL;
- ch->LINE_tx = NULL;
- ch->LINE_status = NULL;
- ch->LINE_open = NULL;
- ch->LINE_close = NULL;
- ch->LINE_xmit = NULL;
- ch->LINE_header = NULL;
- ch->LINE_rebuild_header = NULL;
- ch->LINE_statistics = NULL;
-
- kfree(ch->LINE_privdata);
- ch->LINE_privdata = NULL;
-
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-static int syncppp_init(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct ppp_device *pppdev = (struct ppp_device *)ch->if_ptr;
-
- ch->LINE_privdata = kmalloc(sizeof(struct syncppp_data), GFP_KERNEL);
- if (!ch->LINE_privdata)
- return -ENOMEM;
-
- pppdev->dev = dev;
- sppp_attach(pppdev);
-
- if(ch->protocol == &hdlc_protocol) {
- pppdev->sppp.pp_flags |= PP_CISCO;
- dev->type = ARPHRD_HDLC;
- } else {
- pppdev->sppp.pp_flags &= ~PP_CISCO;
- dev->type = ARPHRD_PPP;
- }
-
- ch->LINE_rx = sppp_input;
- ch->LINE_tx = syncppp_tx;
- ch->LINE_status = syncppp_status;
- ch->LINE_open = syncppp_open;
- ch->LINE_close = syncppp_close;
- ch->LINE_xmit = syncppp_xmit;
- ch->LINE_header = NULL;
- ch->LINE_statistics = syncppp_statistics;
-
-
- MOD_INC_USE_COUNT;
- return 0;
-}
-
-static struct comx_protocol syncppp_protocol = {
- "ppp",
- VERSION,
- ARPHRD_PPP,
- syncppp_init,
- syncppp_exit,
- NULL
-};
-
-static struct comx_protocol hdlc_protocol = {
- "hdlc",
- VERSION,
- ARPHRD_PPP,
- syncppp_init,
- syncppp_exit,
- NULL
-};
-
-static int __init comx_proto_ppp_init(void)
-{
- int ret;
-
- ret = comx_register_protocol(&hdlc_protocol);
- if (!ret) {
- ret = comx_register_protocol(&syncppp_protocol);
- if (ret)
- comx_unregister_protocol(hdlc_protocol.name);
- }
- return ret;
-}
-
-static void __exit comx_proto_ppp_exit(void)
-{
- comx_unregister_protocol(syncppp_protocol.name);
- comx_unregister_protocol(hdlc_protocol.name);
-}
-
-module_init(comx_proto_ppp_init);
-module_exit(comx_proto_ppp_exit);
+++ /dev/null
-/*
- * Device driver framework for the COMX line of synchronous serial boards
- *
- * for Linux kernel 2.2.X / 2.4.X
- *
- * Original authors: Arpad Bakay <bakay.arpad@synergon.hu>,
- * Peter Bajan <bajan.peter@synergon.hu>,
- * Previous maintainer: Tivadar Szemethy <tiv@itc.hu>
- * Current maintainer: Gergely Madarasz <gorgo@itc.hu>
- *
- * Copyright (C) 1995-1999 ITConsult-Pro Co.
- *
- * Contributors:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> (0.85)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Version 0.80 (99/06/11):
- * - clean up source code (playing a bit of indent)
- * - port back to kernel, add support for non-module versions
- * - add support for board resets when channel protocol is down
- * - reset the device structure after protocol exit
- * the syncppp driver needs it
- * - add support for /proc/comx/protocols and
- * /proc/comx/boardtypes
- *
- * Version 0.81 (99/06/21):
- * - comment out the board reset support code, the locomx
- * driver seems not buggy now
- * - printk() levels fixed
- *
- * Version 0.82 (99/07/08):
- * - Handle stats correctly if the lowlevel driver is
- * is not a comx one (locomx - z85230)
- *
- * Version 0.83 (99/07/15):
- * - reset line_status when interface is down
- *
- * Version 0.84 (99/12/01):
- * - comx_status should not check for IFF_UP (to report
- * line status from dev->open())
- *
- * Version 0.85 (00/08/15):
- * - resource release on failure in comx_mkdir
- * - fix return value on failure at comx_write_proc
- *
- * Changed (00/10/29, Henner Eisen):
- * - comx_rx() / comxlapb_data_indication() return status.
- */
-
-#define VERSION "0.85"
-
-#include <linux/config.h>
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/jiffies.h>
-#include <linux/netdevice.h>
-#include <linux/proc_fs.h>
-#include <asm/uaccess.h>
-#include <linux/ctype.h>
-#include <linux/init.h>
-#include <linux/smp_lock.h>
-
-#ifdef CONFIG_KMOD
-#include <linux/kmod.h>
-#endif
-
-#ifndef CONFIG_PROC_FS
-#error For now, COMX really needs the /proc filesystem
-#endif
-
-#include <net/syncppp.h>
-#include "comx.h"
-
-MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>");
-MODULE_DESCRIPTION("Common code for the COMX synchronous serial adapters");
-MODULE_LICENSE("GPL");
-
-static struct comx_hardware *comx_channels = NULL;
-static struct comx_protocol *comx_lines = NULL;
-
-static int comx_mkdir(struct inode *, struct dentry *, int);
-static int comx_rmdir(struct inode *, struct dentry *);
-static struct dentry *comx_lookup(struct inode *, struct dentry *, struct nameidata *);
-
-static struct inode_operations comx_root_inode_ops = {
- .lookup = comx_lookup,
- .mkdir = comx_mkdir,
- .rmdir = comx_rmdir,
-};
-
-static int comx_delete_dentry(struct dentry *dentry);
-static struct proc_dir_entry *create_comx_proc_entry(char *name, int mode,
- int size, struct proc_dir_entry *dir);
-
-static struct dentry_operations comx_dentry_operations = {
- .d_delete = comx_delete_dentry,
-};
-
-
-static struct proc_dir_entry * comx_root_dir;
-
-struct comx_debugflags_struct comx_debugflags[] = {
- { "comx_rx", DEBUG_COMX_RX },
- { "comx_tx", DEBUG_COMX_TX },
- { "hw_tx", DEBUG_HW_TX },
- { "hw_rx", DEBUG_HW_RX },
- { "hdlc_keepalive", DEBUG_HDLC_KEEPALIVE },
- { "comxppp", DEBUG_COMX_PPP },
- { "comxlapb", DEBUG_COMX_LAPB },
- { "dlci", DEBUG_COMX_DLCI },
- { NULL, 0 }
-};
-
-
-int comx_debug(struct net_device *dev, char *fmt, ...)
-{
- struct comx_channel *ch = dev->priv;
- char *page,*str;
- va_list args;
- int len;
-
- if (!ch->debug_area) return 0;
-
- if (!(page = (char *)__get_free_page(GFP_ATOMIC))) return -ENOMEM;
-
- va_start(args, fmt);
- len = vsprintf(str = page, fmt, args);
- va_end(args);
-
- if (len >= PAGE_SIZE) {
- printk(KERN_ERR "comx_debug: PANIC! len = %d !!!\n", len);
- free_page((unsigned long)page);
- return -EINVAL;
- }
-
- while (len) {
- int to_copy;
- int free = (ch->debug_start - ch->debug_end + ch->debug_size)
- % ch->debug_size;
-
- to_copy = min_t(int, free ? free : ch->debug_size,
- min_t(int, ch->debug_size - ch->debug_end, len));
- memcpy(ch->debug_area + ch->debug_end, str, to_copy);
- str += to_copy;
- len -= to_copy;
- ch->debug_end = (ch->debug_end + to_copy) % ch->debug_size;
- if (ch->debug_start == ch->debug_end) // Full ? push start away
- ch->debug_start = (ch->debug_start + len + 1) %
- ch->debug_size;
- ch->debug_file->size = (ch->debug_end - ch->debug_start +
- ch->debug_size) % ch->debug_size;
- }
-
- free_page((unsigned long)page);
- return 0;
-}
-
-int comx_debug_skb(struct net_device *dev, struct sk_buff *skb, char *msg)
-{
- struct comx_channel *ch = dev->priv;
-
- if (!ch->debug_area) return 0;
- if (!skb) comx_debug(dev, "%s: %s NULL skb\n\n", dev->name, msg);
- if (!skb->len) comx_debug(dev, "%s: %s empty skb\n\n", dev->name, msg);
-
- return comx_debug_bytes(dev, skb->data, skb->len, msg);
-}
-
-int comx_debug_bytes(struct net_device *dev, unsigned char *bytes, int len,
- char *msg)
-{
- int pos = 0;
- struct comx_channel *ch = dev->priv;
-
- if (!ch->debug_area) return 0;
-
- comx_debug(dev, "%s: %s len %d\n", dev->name, msg, len);
-
- while (pos != len) {
- char line[80];
- int i = 0;
-
- memset(line, 0, 80);
- sprintf(line,"%04d ", pos);
- do {
- sprintf(line + 5 + (pos % 16) * 3, "%02x", bytes[pos]);
- sprintf(line + 60 + (pos % 16), "%c",
- isprint(bytes[pos]) ? bytes[pos] : '.');
- pos++;
- } while (pos != len && pos % 16);
-
- while ( i++ != 78 ) if (line[i] == 0) line[i] = ' ';
- line[77] = '\n';
- line[78] = 0;
-
- comx_debug(dev, "%s", line);
- }
- comx_debug(dev, "\n");
- return 0;
-}
-
-static void comx_loadavg_timerfun(unsigned long d)
-{
- struct net_device *dev = (struct net_device *)d;
- struct comx_channel *ch = dev->priv;
-
- ch->avg_bytes[ch->loadavg_counter] = ch->current_stats->rx_bytes;
- ch->avg_bytes[ch->loadavg_counter + ch->loadavg_size] =
- ch->current_stats->tx_bytes;
-
- ch->loadavg_counter = (ch->loadavg_counter + 1) % ch->loadavg_size;
-
- mod_timer(&ch->loadavg_timer,jiffies + HZ * ch->loadavg[0]);
-}
-
-#if 0
-static void comx_reset_timerfun(unsigned long d)
-{
- struct net_device *dev = (struct net_device *)d;
- struct comx_channel *ch = dev->priv;
-
- if(!(ch->line_status & (PROTO_LOOP | PROTO_UP))) {
- if(test_and_set_bit(0,&ch->reset_pending) && ch->HW_reset) {
- ch->HW_reset(dev);
- }
- }
-
- mod_timer(&ch->reset_timer, jiffies + HZ * ch->reset_timeout);
-}
-#endif
-
-static int comx_open(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *comxdir = ch->procdir->subdir;
- int ret=0;
-
- if (!ch->protocol || !ch->hardware) return -ENODEV;
-
- if ((ret = ch->HW_open(dev))) return ret;
- if ((ret = ch->LINE_open(dev))) {
- ch->HW_close(dev);
- return ret;
- };
-
- for (; comxdir ; comxdir = comxdir->next) {
- if (strcmp(comxdir->name, FILENAME_HARDWARE) == 0 ||
- strcmp(comxdir->name, FILENAME_PROTOCOL) == 0)
- comxdir->mode = S_IFREG | 0444;
- }
-
-#if 0
- ch->reset_pending = 1;
- ch->reset_timeout = 30;
- ch->reset_timer.function = comx_reset_timerfun;
- ch->reset_timer.data = (unsigned long)dev;
- ch->reset_timer.expires = jiffies + HZ * ch->reset_timeout;
- add_timer(&ch->reset_timer);
-#endif
-
- return 0;
-}
-
-static int comx_close(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- struct proc_dir_entry *comxdir = ch->procdir->subdir;
- int ret = -ENODEV;
-
- if (test_and_clear_bit(0, &ch->lineup_pending)) {
- del_timer(&ch->lineup_timer);
- }
-
-#if 0
- del_timer(&ch->reset_timer);
-#endif
-
- if (ch->init_status & LINE_OPEN && ch->protocol && ch->LINE_close) {
- ret = ch->LINE_close(dev);
- }
-
- if (ret) return ret;
-
- if (ch->init_status & HW_OPEN && ch->hardware && ch->HW_close) {
- ret = ch->HW_close(dev);
- }
-
- ch->line_status=0;
-
- for (; comxdir ; comxdir = comxdir->next) {
- if (strcmp(comxdir->name, FILENAME_HARDWARE) == 0 ||
- strcmp(comxdir->name, FILENAME_PROTOCOL) == 0)
- comxdir->mode = S_IFREG | 0644;
- }
-
- return ret;
-}
-
-void comx_status(struct net_device *dev, int status)
-{
- struct comx_channel *ch = dev->priv;
-
-#if 0
- if(status & (PROTO_UP | PROTO_LOOP)) {
- clear_bit(0,&ch->reset_pending);
- }
-#endif
-
- printk(KERN_NOTICE "Interface %s: modem status %s, line protocol %s\n",
- dev->name, status & LINE_UP ? "UP" : "DOWN",
- status & PROTO_LOOP ? "LOOP" : status & PROTO_UP ?
- "UP" : "DOWN");
-
- ch->line_status = status;
-}
-
-static int comx_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
- int rc;
-
- if (skb->len > dev->mtu + dev->hard_header_len) {
- printk(KERN_ERR "comx_xmit: %s: skb->len %d > dev->mtu %d\n", dev->name,
- (int)skb->len, dev->mtu);
- }
-
- if (ch->debug_flags & DEBUG_COMX_TX) {
- comx_debug_skb(dev, skb, "comx_xmit skb");
- }
-
- rc=ch->LINE_xmit(skb, dev);
-// if (!rc) dev_kfree_skb(skb);
-
- return rc;
-}
-
-static int comx_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, void *daddr, void *saddr, unsigned len)
-{
- struct comx_channel *ch = dev->priv;
-
- if (ch->LINE_header) {
- return (ch->LINE_header(skb, dev, type, daddr, saddr, len));
- } else {
- return 0;
- }
-}
-
-static int comx_rebuild_header(struct sk_buff *skb)
-{
- struct net_device *dev = skb->dev;
- struct comx_channel *ch = dev->priv;
-
- if (ch->LINE_rebuild_header) {
- return(ch->LINE_rebuild_header(skb));
- } else {
- return 0;
- }
-}
-
-int comx_rx(struct net_device *dev, struct sk_buff *skb)
-{
- struct comx_channel *ch = dev->priv;
-
- if (ch->debug_flags & DEBUG_COMX_RX) {
- comx_debug_skb(dev, skb, "comx_rx skb");
- }
- if (skb) {
- netif_rx(skb);
- dev->last_rx = jiffies;
- }
- return 0;
-}
-
-static struct net_device_stats *comx_stats(struct net_device *dev)
-{
- struct comx_channel *ch = dev->priv;
-
- return ch->current_stats;
-}
-
-void comx_lineup_func(unsigned long d)
-{
- struct net_device *dev = (struct net_device *)d;
- struct comx_channel *ch = dev->priv;
-
- del_timer(&ch->lineup_timer);
- clear_bit(0, &ch->lineup_pending);
-
- if (ch->LINE_status) {
- ch->LINE_status(dev, ch->line_status |= LINE_UP);
- }
-}
-
-#define LOADAVG(avg, off) (int) \
- ((ch->avg_bytes[(ch->loadavg_counter - 1 + ch->loadavg_size * 2) \
- % ch->loadavg_size + off] - ch->avg_bytes[(ch->loadavg_counter - 1 \
- - ch->loadavg[avg] / ch->loadavg[0] + ch->loadavg_size * 2) \
- % ch->loadavg_size + off]) / ch->loadavg[avg] * 8)
-
-static int comx_statistics(struct net_device *dev, char *page)
-{
- struct comx_channel *ch = dev->priv;
- int len = 0;
- int tmp;
- int i = 0;
- char tmpstr[20];
- int tmpstrlen = 0;
-
- len += sprintf(page + len, "Interface administrative status is %s, "
- "modem status is %s, protocol is %s\n",
- dev->flags & IFF_UP ? "UP" : "DOWN",
- ch->line_status & LINE_UP ? "UP" : "DOWN",
- ch->line_status & PROTO_LOOP ? "LOOP" :
- ch->line_status & PROTO_UP ? "UP" : "DOWN");
- len += sprintf(page + len, "Modem status changes: %lu, Transmitter status "
- "is %s, tbusy: %d\n", ch->current_stats->tx_carrier_errors, ch->HW_txe ?
- ch->HW_txe(dev) ? "IDLE" : "BUSY" : "NOT READY", netif_running(dev));
- len += sprintf(page + len, "Interface load (input): %d / %d / %d bits/s (",
- LOADAVG(0,0), LOADAVG(1, 0), LOADAVG(2, 0));
- tmpstr[0] = 0;
- for (i=0; i != 3; i++) {
- char tf;
-
- tf = ch->loadavg[i] % 60 == 0 &&
- ch->loadavg[i] / 60 > 0 ? 'm' : 's';
- tmpstrlen += sprintf(tmpstr + tmpstrlen, "%d%c%s",
- ch->loadavg[i] / (tf == 'm' ? 60 : 1), tf,
- i == 2 ? ")\n" : "/");
- }
- len += sprintf(page + len,
- "%s (output): %d / %d / %d bits/s (%s", tmpstr,
- LOADAVG(0,ch->loadavg_size), LOADAVG(1, ch->loadavg_size),
- LOADAVG(2, ch->loadavg_size), tmpstr);
-
- len += sprintf(page + len, "Debug flags: ");
- tmp = len; i = 0;
- while (comx_debugflags[i].name) {
- if (ch->debug_flags & comx_debugflags[i].value)
- len += sprintf(page + len, "%s ",
- comx_debugflags[i].name);
- i++;
- }
- len += sprintf(page + len, "%s\n", tmp == len ? "none" : "");
-
- len += sprintf(page + len, "RX errors: len: %lu, overrun: %lu, crc: %lu, "
- "aborts: %lu\n buffer overrun: %lu, pbuffer overrun: %lu\n"
- "TX errors: underrun: %lu\n",
- ch->current_stats->rx_length_errors, ch->current_stats->rx_over_errors,
- ch->current_stats->rx_crc_errors, ch->current_stats->rx_frame_errors,
- ch->current_stats->rx_missed_errors, ch->current_stats->rx_fifo_errors,
- ch->current_stats->tx_fifo_errors);
-
- if (ch->LINE_statistics && (ch->init_status & LINE_OPEN)) {
- len += ch->LINE_statistics(dev, page + len);
- } else {
- len += sprintf(page+len, "Line status: driver not initialized\n");
- }
- if (ch->HW_statistics && (ch->init_status & HW_OPEN)) {
- len += ch->HW_statistics(dev, page + len);
- } else {
- len += sprintf(page+len, "Board status: driver not initialized\n");
- }
-
- return len;
-}
-
-static int comx_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- struct comx_channel *ch = dev->priv;
-
- if (ch->LINE_ioctl) {
- return(ch->LINE_ioctl(dev, ifr, cmd));
- }
- return -EINVAL;
-}
-
-static void comx_reset_dev(struct net_device *dev)
-{
- dev->open = comx_open;
- dev->stop = comx_close;
- dev->hard_start_xmit = comx_xmit;
- dev->hard_header = comx_header;
- dev->rebuild_header = comx_rebuild_header;
- dev->get_stats = comx_stats;
- dev->do_ioctl = comx_ioctl;
- dev->change_mtu = NULL;
- dev->tx_queue_len = 20;
- dev->flags = IFF_NOARP;
-}
-
-static int comx_init_dev(struct net_device *dev)
-{
- struct comx_channel *ch;
-
- if ((ch = kmalloc(sizeof(struct comx_channel), GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
- memset(ch, 0, sizeof(struct comx_channel));
-
- ch->loadavg[0] = 5;
- ch->loadavg[1] = 300;
- ch->loadavg[2] = 900;
- ch->loadavg_size = ch->loadavg[2] / ch->loadavg[0] + 1;
- if ((ch->avg_bytes = kmalloc(ch->loadavg_size *
- sizeof(unsigned long) * 2, GFP_KERNEL)) == NULL) {
- kfree(ch);
- return -ENOMEM;
- }
-
- memset(ch->avg_bytes, 0, ch->loadavg_size * sizeof(unsigned long) * 2);
- ch->loadavg_counter = 0;
- ch->loadavg_timer.function = comx_loadavg_timerfun;
- ch->loadavg_timer.data = (unsigned long)dev;
- ch->loadavg_timer.expires = jiffies + HZ * ch->loadavg[0];
- add_timer(&ch->loadavg_timer);
-
- dev->priv = (void *)ch;
- ch->dev = dev;
- ch->line_status &= ~LINE_UP;
-
- ch->current_stats = &ch->stats;
-
- comx_reset_dev(dev);
- return 0;
-}
-
-static int comx_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct proc_dir_entry *file = (struct proc_dir_entry *)data;
- struct net_device *dev = file->parent->data;
- struct comx_channel *ch = dev->priv;
- int len = 0;
-
- if (strcmp(file->name, FILENAME_STATUS) == 0) {
- len = comx_statistics(dev, page);
- } else if (strcmp(file->name, FILENAME_HARDWARE) == 0) {
- len = sprintf(page, "%s\n", ch->hardware ?
- ch->hardware->name : HWNAME_NONE);
- } else if (strcmp(file->name, FILENAME_PROTOCOL) == 0) {
- len = sprintf(page, "%s\n", ch->protocol ?
- ch->protocol->name : PROTONAME_NONE);
- } else if (strcmp(file->name, FILENAME_LINEUPDELAY) == 0) {
- len = sprintf(page, "%01d\n", ch->lineup_delay);
- }
-
- if (off >= len) {
- *eof = 1;
- return 0;
- }
-
- *start = page + off;
- if (count >= len - off) {
- *eof = 1;
- }
- return min_t(int, count, len - off);
-}
-
-
-static int comx_root_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct proc_dir_entry *file = (struct proc_dir_entry *)data;
- struct comx_hardware *hw;
- struct comx_protocol *line;
-
- int len = 0;
-
- if (strcmp(file->name, FILENAME_HARDWARELIST) == 0) {
- for(hw=comx_channels;hw;hw=hw->next)
- len+=sprintf(page+len, "%s\n", hw->name);
- } else if (strcmp(file->name, FILENAME_PROTOCOLLIST) == 0) {
- for(line=comx_lines;line;line=line->next)
- len+=sprintf(page+len, "%s\n", line->name);
- }
-
- if (off >= len) {
- *eof = 1;
- return 0;
- }
-
- *start = page + off;
- if (count >= len - off) {
- *eof = 1;
- }
- return min_t(int, count, len - off);
-}
-
-
-
-static int comx_write_proc(struct file *file, const char *buffer, u_long count,
- void *data)
-{
- struct proc_dir_entry *entry = (struct proc_dir_entry *)data;
- struct net_device *dev = (struct net_device *)entry->parent->data;
- struct comx_channel *ch = dev->priv;
- char *page;
- struct comx_hardware *hw = comx_channels;
- struct comx_protocol *line = comx_lines;
- int ret=0;
-
- if (count > PAGE_SIZE) {
- printk(KERN_ERR "count is %lu > %d!!!\n", count, (int)PAGE_SIZE);
- return -ENOSPC;
- }
-
- if (!(page = (char *)__get_free_page(GFP_KERNEL))) return -ENOMEM;
-
- if(copy_from_user(page, buffer, count))
- {
- count = -EFAULT;
- goto out;
- }
-
- if (page[count-1] == '\n')
- page[count-1] = '\0';
- else if (count < PAGE_SIZE)
- page[count] = '\0';
- else if (page[count]) {
- count = -EINVAL;
- goto out;
- }
-
- if (strcmp(entry->name, FILENAME_DEBUG) == 0) {
- int i;
- int ret = 0;
-
- if ((i = simple_strtoul(page, NULL, 10)) != 0) {
- unsigned long flags;
-
- save_flags(flags); cli();
- if (ch->debug_area) kfree(ch->debug_area);
- if ((ch->debug_area = kmalloc(ch->debug_size = i,
- GFP_KERNEL)) == NULL) {
- ret = -ENOMEM;
- }
- ch->debug_start = ch->debug_end = 0;
- restore_flags(flags);
- free_page((unsigned long)page);
- return ret ? ret : count;
- }
-
- if (*page != '+' && *page != '-') {
- free_page((unsigned long)page);
- return -EINVAL;
- }
- while (comx_debugflags[i].value &&
- strncmp(comx_debugflags[i].name, page + 1,
- strlen(comx_debugflags[i].name))) {
- i++;
- }
-
- if (comx_debugflags[i].value == 0) {
- printk(KERN_ERR "Invalid debug option\n");
- free_page((unsigned long)page);
- return -EINVAL;
- }
- if (*page == '+') {
- ch->debug_flags |= comx_debugflags[i].value;
- } else {
- ch->debug_flags &= ~comx_debugflags[i].value;
- }
- } else if (strcmp(entry->name, FILENAME_HARDWARE) == 0) {
- if(strlen(page)>10) {
- free_page((unsigned long)page);
- return -EINVAL;
- }
- while (hw) {
- if (strcmp(hw->name, page) == 0) {
- break;
- } else {
- hw = hw->next;
- }
- }
-#ifdef CONFIG_KMOD
- if(!hw && comx_strcasecmp(HWNAME_NONE,page) != 0){
- request_module("comx-hw-%s",page);
- }
- hw=comx_channels;
- while (hw) {
- if (comx_strcasecmp(hw->name, page) == 0) {
- break;
- } else {
- hw = hw->next;
- }
- }
-#endif
-
- if (comx_strcasecmp(HWNAME_NONE, page) != 0 && !hw) {
- free_page((unsigned long)page);
- return -ENODEV;
- }
- if (ch->init_status & HW_OPEN) {
- free_page((unsigned long)page);
- return -EBUSY;
- }
- if (ch->hardware && ch->hardware->hw_exit &&
- (ret=ch->hardware->hw_exit(dev))) {
- free_page((unsigned long)page);
- return ret;
- }
- ch->hardware = hw;
- entry->size = strlen(page) + 1;
- if (hw && hw->hw_init) hw->hw_init(dev);
- } else if (strcmp(entry->name, FILENAME_PROTOCOL) == 0) {
- if(strlen(page)>10) {
- free_page((unsigned long)page);
- return -EINVAL;
- }
- while (line) {
- if (comx_strcasecmp(line->name, page) == 0) {
- break;
- } else {
- line = line->next;
- }
- }
-#ifdef CONFIG_KMOD
- if(!line && comx_strcasecmp(PROTONAME_NONE, page) != 0) {
- request_module("comx-proto-%s",page);
- }
- line=comx_lines;
- while (line) {
- if (comx_strcasecmp(line->name, page) == 0) {
- break;
- } else {
- line = line->next;
- }
- }
-#endif
-
- if (comx_strcasecmp(PROTONAME_NONE, page) != 0 && !line) {
- free_page((unsigned long)page);
- return -ENODEV;
- }
-
- if (ch->init_status & LINE_OPEN) {
- free_page((unsigned long)page);
- return -EBUSY;
- }
-
- if (ch->protocol && ch->protocol->line_exit &&
- (ret=ch->protocol->line_exit(dev))) {
- free_page((unsigned long)page);
- return ret;
- }
- ch->protocol = line;
- entry->size = strlen(page) + 1;
- comx_reset_dev(dev);
- if (line && line->line_init) line->line_init(dev);
- } else if (strcmp(entry->name, FILENAME_LINEUPDELAY) == 0) {
- int i;
-
- if ((i = simple_strtoul(page, NULL, 10)) != 0) {
- if (i >=0 && i < 10) {
- ch->lineup_delay = i;
- } else {
- printk(KERN_ERR "comx: invalid lineup_delay value\n");
- }
- }
- }
-out:
- free_page((unsigned long)page);
- return count;
-}
-
-static int comx_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
- struct proc_dir_entry *new_dir, *debug_file;
- struct net_device *dev;
- struct comx_channel *ch;
- int ret = -EIO;
-
- if ((dev = kmalloc(sizeof(struct net_device), GFP_KERNEL)) == NULL) {
- return -ENOMEM;
- }
- memset(dev, 0, sizeof(struct net_device));
-
- lock_kernel();
- if ((new_dir = create_proc_entry(dentry->d_name.name, mode | S_IFDIR,
- comx_root_dir)) == NULL) {
- goto cleanup_dev;
- }
-
- new_dir->nlink = 2;
- new_dir->data = NULL; // ide jon majd a struct dev
-
- /* Ezek kellenek */
- if (!create_comx_proc_entry(FILENAME_HARDWARE, 0644,
- strlen(HWNAME_NONE) + 1, new_dir)) {
- goto cleanup_new_dir;
- }
- if (!create_comx_proc_entry(FILENAME_PROTOCOL, 0644,
- strlen(PROTONAME_NONE) + 1, new_dir)) {
- goto cleanup_filename_hardware;
- }
- if (!create_comx_proc_entry(FILENAME_STATUS, 0444, 0, new_dir)) {
- goto cleanup_filename_protocol;
- }
- if (!create_comx_proc_entry(FILENAME_LINEUPDELAY, 0644, 2, new_dir)) {
- goto cleanup_filename_status;
- }
-
- if ((debug_file = create_proc_entry(FILENAME_DEBUG,
- S_IFREG | 0644, new_dir)) == NULL) {
- goto cleanup_filename_lineupdelay;
- }
- debug_file->data = (void *)debug_file;
- debug_file->read_proc = NULL; // see below
- debug_file->write_proc = &comx_write_proc;
- debug_file->nlink = 1;
-
- strcpy(dev->name, (char *)new_dir->name);
- dev->init = comx_init_dev;
-
- if (register_netdevice(dev)) {
- goto cleanup_filename_debug;
- }
- ch = dev->priv;
- if((ch->if_ptr = (void *)kmalloc(sizeof(struct ppp_device),
- GFP_KERNEL)) == NULL) {
- goto cleanup_register;
- }
- memset(ch->if_ptr, 0, sizeof(struct ppp_device));
- ch->debug_file = debug_file;
- ch->procdir = new_dir;
- new_dir->data = dev;
-
- ch->debug_start = ch->debug_end = 0;
- if ((ch->debug_area = kmalloc(ch->debug_size = DEFAULT_DEBUG_SIZE,
- GFP_KERNEL)) == NULL) {
- ret = -ENOMEM;
- goto cleanup_if_ptr;
- }
-
- ch->lineup_delay = DEFAULT_LINEUP_DELAY;
-
- MOD_INC_USE_COUNT;
- unlock_kernel();
- return 0;
-cleanup_if_ptr:
- kfree(ch->if_ptr);
-cleanup_register:
- unregister_netdevice(dev);
-cleanup_filename_debug:
- remove_proc_entry(FILENAME_DEBUG, new_dir);
-cleanup_filename_lineupdelay:
- remove_proc_entry(FILENAME_LINEUPDELAY, new_dir);
-cleanup_filename_status:
- remove_proc_entry(FILENAME_STATUS, new_dir);
-cleanup_filename_protocol:
- remove_proc_entry(FILENAME_PROTOCOL, new_dir);
-cleanup_filename_hardware:
- remove_proc_entry(FILENAME_HARDWARE, new_dir);
-cleanup_new_dir:
- remove_proc_entry(dentry->d_name.name, comx_root_dir);
-cleanup_dev:
- kfree(dev);
- unlock_kernel();
- return ret;
-}
-
-static int comx_rmdir(struct inode *dir, struct dentry *dentry)
-{
- struct proc_dir_entry *entry = PDE(dentry->d_inode);
- struct net_device *dev;
- struct comx_channel *ch;
- int ret;
-
- lock_kernel();
- dev = entry->data;
- ch = dev->priv;
- if (dev->flags & IFF_UP) {
- printk(KERN_ERR "%s: down interface before removing it\n", dev->name);
- unlock_kernel();
- return -EBUSY;
- }
-
- if (ch->protocol && ch->protocol->line_exit &&
- (ret=ch->protocol->line_exit(dev))) {
- unlock_kernel();
- return ret;
- }
- if (ch->hardware && ch->hardware->hw_exit &&
- (ret=ch->hardware->hw_exit(dev))) {
- if(ch->protocol && ch->protocol->line_init) {
- ch->protocol->line_init(dev);
- }
- unlock_kernel();
- return ret;
- }
- ch->protocol = NULL;
- ch->hardware = NULL;
-
- del_timer(&ch->loadavg_timer);
- kfree(ch->avg_bytes);
-
- unregister_netdev(dev);
- if (ch->debug_area) {
- kfree(ch->debug_area);
- }
- if (dev->priv) {
- kfree(dev->priv);
- }
- free_netdev(dev);
-
- remove_proc_entry(FILENAME_DEBUG, entry);
- remove_proc_entry(FILENAME_LINEUPDELAY, entry);
- remove_proc_entry(FILENAME_STATUS, entry);
- remove_proc_entry(FILENAME_HARDWARE, entry);
- remove_proc_entry(FILENAME_PROTOCOL, entry);
- remove_proc_entry(dentry->d_name.name, comx_root_dir);
-
- MOD_DEC_USE_COUNT;
- unlock_kernel();
- return 0;
-}
-
-static struct dentry *comx_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
-{
- struct proc_dir_entry *de;
- struct inode *inode = NULL;
-
- lock_kernel();
- if ((de = PDE(dir)) != NULL) {
- for (de = de->subdir ; de ; de = de->next) {
- if ((de->namelen == dentry->d_name.len) &&
- (memcmp(dentry->d_name.name, de->name,
- de->namelen) == 0)) {
- if ((inode = proc_get_inode(dir->i_sb,
- de->low_ino, de)) == NULL) {
- printk(KERN_ERR "COMX: lookup error\n");
- unlock_kernel();
- return ERR_PTR(-EINVAL);
- }
- break;
- }
- }
- }
- unlock_kernel();
- dentry->d_op = &comx_dentry_operations;
- d_add(dentry, inode);
- return NULL;
-}
-
-int comx_strcasecmp(const char *cs, const char *ct)
-{
- register signed char __res;
-
- while (1) {
- if ((__res = toupper(*cs) - toupper(*ct++)) != 0 || !*cs++) {
- break;
- }
- }
- return __res;
-}
-
-static int comx_delete_dentry(struct dentry *dentry)
-{
- return 1;
-}
-
-static struct proc_dir_entry *create_comx_proc_entry(char *name, int mode,
- int size, struct proc_dir_entry *dir)
-{
- struct proc_dir_entry *new_file;
-
- if ((new_file = create_proc_entry(name, S_IFREG | mode, dir)) != NULL) {
- new_file->data = (void *)new_file;
- new_file->read_proc = &comx_read_proc;
- new_file->write_proc = &comx_write_proc;
- new_file->size = size;
- new_file->nlink = 1;
- }
- return(new_file);
-}
-
-int comx_register_hardware(struct comx_hardware *comx_hw)
-{
- struct comx_hardware *hw = comx_channels;
-
- if (!hw) {
- comx_channels = comx_hw;
- } else {
- while (hw->next != NULL && strcmp(comx_hw->name, hw->name) != 0) {
- hw = hw->next;
- }
- if (strcmp(comx_hw->name, hw->name) == 0) {
- return -1;
- }
- hw->next = comx_hw;
- }
-
- printk(KERN_INFO "COMX: driver for hardware type %s, version %s\n", comx_hw->name, comx_hw->version);
- return 0;
-}
-
-int comx_unregister_hardware(char *name)
-{
- struct comx_hardware *hw = comx_channels;
-
- if (!hw) {
- return -1;
- }
-
- if (strcmp(hw->name, name) == 0) {
- comx_channels = comx_channels->next;
- return 0;
- }
-
- while (hw->next != NULL && strcmp(hw->next->name,name) != 0) {
- hw = hw->next;
- }
-
- if (hw->next != NULL && strcmp(hw->next->name, name) == 0) {
- hw->next = hw->next->next;
- return 0;
- }
- return -1;
-}
-
-int comx_register_protocol(struct comx_protocol *comx_line)
-{
- struct comx_protocol *pr = comx_lines;
-
- if (!pr) {
- comx_lines = comx_line;
- } else {
- while (pr->next != NULL && strcmp(comx_line->name, pr->name) !=0) {
- pr = pr->next;
- }
- if (strcmp(comx_line->name, pr->name) == 0) {
- return -1;
- }
- pr->next = comx_line;
- }
-
- printk(KERN_INFO "COMX: driver for protocol type %s, version %s\n", comx_line->name, comx_line->version);
- return 0;
-}
-
-int comx_unregister_protocol(char *name)
-{
- struct comx_protocol *pr = comx_lines;
-
- if (!pr) {
- return -1;
- }
-
- if (strcmp(pr->name, name) == 0) {
- comx_lines = comx_lines->next;
- return 0;
- }
-
- while (pr->next != NULL && strcmp(pr->next->name,name) != 0) {
- pr = pr->next;
- }
-
- if (pr->next != NULL && strcmp(pr->next->name, name) == 0) {
- pr->next = pr->next->next;
- return 0;
- }
- return -1;
-}
-
-static int __init comx_init(void)
-{
- struct proc_dir_entry *new_file;
-
- comx_root_dir = create_proc_entry("comx",
- S_IFDIR | S_IWUSR | S_IRUGO | S_IXUGO, &proc_root);
- if (!comx_root_dir)
- return -ENOMEM;
- comx_root_dir->proc_iops = &comx_root_inode_ops;
-
- if ((new_file = create_proc_entry(FILENAME_HARDWARELIST,
- S_IFREG | 0444, comx_root_dir)) == NULL) {
- return -ENOMEM;
- }
-
- new_file->data = new_file;
- new_file->read_proc = &comx_root_read_proc;
- new_file->write_proc = NULL;
- new_file->nlink = 1;
-
- if ((new_file = create_proc_entry(FILENAME_PROTOCOLLIST,
- S_IFREG | 0444, comx_root_dir)) == NULL) {
- return -ENOMEM;
- }
-
- new_file->data = new_file;
- new_file->read_proc = &comx_root_read_proc;
- new_file->write_proc = NULL;
- new_file->nlink = 1;
-
-
- printk(KERN_INFO "COMX: driver version %s (C) 1995-1999 ITConsult-Pro Co. <info@itc.hu>\n",
- VERSION);
- return 0;
-}
-
-static void __exit comx_exit(void)
-{
- remove_proc_entry(FILENAME_HARDWARELIST, comx_root_dir);
- remove_proc_entry(FILENAME_PROTOCOLLIST, comx_root_dir);
- remove_proc_entry(comx_root_dir->name, &proc_root);
-}
-
-module_init(comx_init);
-module_exit(comx_exit);
-
-EXPORT_SYMBOL(comx_register_hardware);
-EXPORT_SYMBOL(comx_unregister_hardware);
-EXPORT_SYMBOL(comx_register_protocol);
-EXPORT_SYMBOL(comx_unregister_protocol);
-EXPORT_SYMBOL(comx_debug_skb);
-EXPORT_SYMBOL(comx_debug_bytes);
-EXPORT_SYMBOL(comx_debug);
-EXPORT_SYMBOL(comx_lineup_func);
-EXPORT_SYMBOL(comx_status);
-EXPORT_SYMBOL(comx_rx);
-EXPORT_SYMBOL(comx_strcasecmp);
-EXPORT_SYMBOL(comx_root_dir);
+++ /dev/null
-/*
- * General definitions for the COMX driver
- *
- * Original authors: Arpad Bakay <bakay.arpad@synergon.hu>,
- * Peter Bajan <bajan.peter@synergon.hu>,
- * Previous maintainer: Tivadar Szemethy <tiv@itc.hu>
- * Currently maintained by: Gergely Madarasz <gorgo@itc.hu>
- *
- * Copyright (C) 1995-1999 ITConsult-Pro Co. <info@itc.hu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- *
- * net_device_stats:
- * rx_length_errors rec_len < 4 || rec_len > 2000
- * rx_over_errors receive overrun (OVR)
- * rx_crc_errors rx crc error
- * rx_frame_errors aborts rec'd (ABO)
- * rx_fifo_errors status fifo overrun (PBUFOVR)
- * rx_missed_errors receive buffer overrun (BUFOVR)
- * tx_aborted_errors ?
- * tx_carrier_errors modem line status changes
- * tx_fifo_errors tx underrun (locomx)
- */
-#include <linux/config.h>
-
-struct comx_protocol {
- char *name;
- char *version;
- unsigned short encap_type;
- int (*line_init)(struct net_device *dev);
- int (*line_exit)(struct net_device *dev);
- struct comx_protocol *next;
- };
-
-struct comx_hardware {
- char *name;
- char *version;
- int (*hw_init)(struct net_device *dev);
- int (*hw_exit)(struct net_device *dev);
- int (*hw_dump)(struct net_device *dev);
- struct comx_hardware *next;
- };
-
-struct comx_channel {
- void *if_ptr; // General purpose pointer
- struct net_device *dev; // Where we belong to
- struct net_device *twin; // On dual-port cards
- struct proc_dir_entry *procdir; // the directory
-
- unsigned char init_status;
- unsigned char line_status;
-
- struct timer_list lineup_timer; // against line jitter
- long int lineup_pending;
- unsigned char lineup_delay;
-
-#if 0
- struct timer_list reset_timer; // for board resetting
- long reset_pending;
- int reset_timeout;
-#endif
-
- struct net_device_stats stats;
- struct net_device_stats *current_stats;
-#if 0
- unsigned long board_resets;
-#endif
- unsigned long *avg_bytes;
- int loadavg_counter, loadavg_size;
- int loadavg[3];
- struct timer_list loadavg_timer;
- int debug_flags;
- char *debug_area;
- int debug_start, debug_end, debug_size;
- struct proc_dir_entry *debug_file;
-#ifdef CONFIG_COMX_DEBUG_RAW
- char *raw;
- int raw_len;
-#endif
- // LINE specific
- struct comx_protocol *protocol;
- void (*LINE_rx)(struct net_device *dev, struct sk_buff *skb);
- int (*LINE_tx)(struct net_device *dev);
- void (*LINE_status)(struct net_device *dev, u_short status);
- int (*LINE_open)(struct net_device *dev);
- int (*LINE_close)(struct net_device *dev);
- int (*LINE_xmit)(struct sk_buff *skb, struct net_device *dev);
- int (*LINE_header)(struct sk_buff *skb, struct net_device *dev,
- u_short type,void *daddr, void *saddr,
- unsigned len);
- int (*LINE_rebuild_header)(struct sk_buff *skb);
- int (*LINE_statistics)(struct net_device *dev, char *page);
- int (*LINE_parameter_check)(struct net_device *dev);
- int (*LINE_ioctl)(struct net_device *dev, struct ifreq *ifr,
- int cmd);
- void (*LINE_mod_use)(int);
- void * LINE_privdata;
-
- // HW specific
-
- struct comx_hardware *hardware;
- void (*HW_board_on)(struct net_device *dev);
- void (*HW_board_off)(struct net_device *dev);
- struct net_device *(*HW_access_board)(struct net_device *dev);
- void (*HW_release_board)(struct net_device *dev, struct net_device *savep);
- int (*HW_txe)(struct net_device *dev);
- int (*HW_open)(struct net_device *dev);
- int (*HW_close)(struct net_device *dev);
- int (*HW_send_packet)(struct net_device *dev,struct sk_buff *skb);
- int (*HW_statistics)(struct net_device *dev, char *page);
-#if 0
- int (*HW_reset)(struct net_device *dev, char *page);
-#endif
- int (*HW_load_board)(struct net_device *dev);
- void (*HW_set_clock)(struct net_device *dev);
- void *HW_privdata;
- };
-
-struct comx_debugflags_struct {
- char *name;
- int value;
- };
-
-#define COMX_ROOT_DIR_NAME "comx"
-
-#define FILENAME_HARDWARE "boardtype"
-#define FILENAME_HARDWARELIST "boardtypes"
-#define FILENAME_PROTOCOL "protocol"
-#define FILENAME_PROTOCOLLIST "protocols"
-#define FILENAME_DEBUG "debug"
-#define FILENAME_CLOCK "clock"
-#define FILENAME_STATUS "status"
-#define FILENAME_IO "io"
-#define FILENAME_IRQ "irq"
-#define FILENAME_KEEPALIVE "keepalive"
-#define FILENAME_LINEUPDELAY "lineup_delay"
-#define FILENAME_CHANNEL "channel"
-#define FILENAME_FIRMWARE "firmware"
-#define FILENAME_MEMADDR "memaddr"
-#define FILENAME_TWIN "twin"
-#define FILENAME_T1 "t1"
-#define FILENAME_T2 "t2"
-#define FILENAME_N2 "n2"
-#define FILENAME_WINDOW "window"
-#define FILENAME_MODE "mode"
-#define FILENAME_DLCI "dlci"
-#define FILENAME_MASTER "master"
-#ifdef CONFIG_COMX_DEBUG_RAW
-#define FILENAME_RAW "raw"
-#endif
-
-#define PROTONAME_NONE "none"
-#define HWNAME_NONE "none"
-#define KEEPALIVE_OFF "off"
-
-#define FRAME_ACCEPTED 0 /* sending and xmitter busy */
-#define FRAME_DROPPED 1
-#define FRAME_ERROR 2 /* xmitter error */
-#define FRAME_QUEUED 3 /* sending but more can come */
-
-#define LINE_UP 1 /* Modem UP */
-#define PROTO_UP 2
-#define PROTO_LOOP 4
-
-#define HW_OPEN 1
-#define LINE_OPEN 2
-#define FW_LOADED 4
-#define IRQ_ALLOCATED 8
-
-#define DEBUG_COMX_RX 2
-#define DEBUG_COMX_TX 4
-#define DEBUG_HW_TX 16
-#define DEBUG_HW_RX 32
-#define DEBUG_HDLC_KEEPALIVE 64
-#define DEBUG_COMX_PPP 128
-#define DEBUG_COMX_LAPB 256
-#define DEBUG_COMX_DLCI 512
-
-#define DEBUG_PAGESIZE 3072
-#define DEFAULT_DEBUG_SIZE 4096
-#define DEFAULT_LINEUP_DELAY 1
-#define FILE_PAGESIZE 3072
-
-#ifndef COMX_PPP_MAJOR
-#define COMX_PPP_MAJOR 88
-#endif
-
-
-#define COMX_CHANNEL(dev) ((struct comx_channel*)dev->priv)
-
-#define TWIN(dev) (COMX_CHANNEL(dev)->twin)
-
-
-#ifndef byte
-typedef u8 byte;
-#endif
-#ifndef word
-typedef u16 word;
-#endif
-
-#ifndef SEEK_SET
-#define SEEK_SET 0
-#endif
-#ifndef SEEK_CUR
-#define SEEK_CUR 1
-#endif
-#ifndef SEEK_END
-#define SEEK_END 2
-#endif
-
-extern struct proc_dir_entry * comx_root_dir;
-
-extern int comx_register_hardware(struct comx_hardware *comx_hw);
-extern int comx_unregister_hardware(char *name);
-extern int comx_register_protocol(struct comx_protocol *comx_line);
-extern int comx_unregister_protocol(char *name);
-
-extern int comx_rx(struct net_device *dev, struct sk_buff *skb);
-extern void comx_status(struct net_device *dev, int status);
-extern void comx_lineup_func(unsigned long d);
-
-extern int comx_debug(struct net_device *dev, char *fmt, ...);
-extern int comx_debug_skb(struct net_device *dev, struct sk_buff *skb, char *msg);
-extern int comx_debug_bytes(struct net_device *dev, unsigned char *bytes, int len,
- char *msg);
-extern int comx_strcasecmp(const char *cs, const char *ct);
-
-extern struct inode_operations comx_normal_inode_ops;
+++ /dev/null
-/*
- * Defines for comxhw.c
- *
- * Original authors: Arpad Bakay <bakay.arpad@synergon.hu>,
- * Peter Bajan <bajan.peter@synergon.hu>,
- * Previous maintainer: Tivadar Szemethy <tiv@itc.hu>
- * Current maintainer: Gergely Madarasz <gorgo@itc.hu>
- *
- * Copyright (C) 1995-1999 ITConsult-Pro Co. <info@itc.hu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#define LOCOMX_IO_EXTENT 8
-#define COMX_IO_EXTENT 4
-#define HICOMX_IO_EXTENT 16
-
-#define COMX_MAX_TX_SIZE 1600
-#define COMX_MAX_RX_SIZE 2048
-
-#define COMX_JAIL_OFFSET 0xffff
-#define COMX_JAIL_VALUE 0xfe
-#define COMX_MEMORY_SIZE 65536
-#define HICOMX_MEMORY_SIZE 16384
-#define COMX_MEM_MIN 0xa0000
-#define COMX_MEM_MAX 0xf0000
-
-#define COMX_DEFAULT_IO 0x360
-#define COMX_DEFAULT_IRQ 10
-#define COMX_DEFAULT_MEMADDR 0xd0000
-#define HICOMX_DEFAULT_IO 0x320
-#define HICOMX_DEFAULT_IRQ 10
-#define HICOMX_DEFAULT_MEMADDR 0xd0000
-#define LOCOMX_DEFAULT_IO 0x368
-#define LOCOMX_DEFAULT_IRQ 7
-
-#define MAX_CHANNELNO 2
-
-#define COMX_CHANNEL_OFFSET 0x2000
-
-#define COMX_ENABLE_BOARD_IT 0x40
-#define COMX_BOARD_RESET 0x20
-#define COMX_ENABLE_BOARD_MEM 0x10
-#define COMX_DISABLE_BOARD_MEM 0
-#define COMX_DISABLE_ALL 0x00
-
-#define HICOMX_DISABLE_ALL 0x00
-#define HICOMX_ENABLE_BOARD_MEM 0x02
-#define HICOMX_DISABLE_BOARD_MEM 0x0
-#define HICOMX_BOARD_RESET 0x01
-#define HICOMX_PRG_MEM 4
-#define HICOMX_DATA_MEM 0
-#define HICOMX_ID_BYTE 0x55
-
-#define CMX_ID_BYTE 0x31
-#define COMX_CLOCK_CONST 8000
-
-#define LINKUP_READY 3
-
-#define OFF_FW_L1_ID 0x01e /* ID bytes */
-#define OFF_FW_L2_ID 0x1006
-#define FW_L1_ID_1 0xab
-#define FW_L1_ID_2_COMX 0xc0
-#define FW_L1_ID_2_HICOMX 0xc1
-#define FW_L2_ID_1 0xab
-
-#define OFF_A_L2_CMD 0x130 /* command register for L2 */
-#define OFF_A_L2_CMDPAR 0x131 /* command parameter byte */
-#define OFF_A_L1_STATB 0x122 /* stat. block for L1 */
-#define OFF_A_L1_ABOREC 0x122 /* receive ABORT counter */
-#define OFF_A_L1_OVERRUN 0x123 /* receive overrun counter */
-#define OFF_A_L1_CRCREC 0x124 /* CRC error counter */
-#define OFF_A_L1_BUFFOVR 0x125 /* buffer overrun counter */
-#define OFF_A_L1_PBUFOVR 0x126 /* priority buffer overrun counter */
-#define OFF_A_L1_MODSTAT 0x127 /* current state of modem ctrl lines */
-#define OFF_A_L1_STATE 0x127 /* end of stat. block for L1 */
-#define OFF_A_L1_TXPC 0x128 /* Tx counter for the PC */
-#define OFF_A_L1_TXZ80 0x129 /* Tx counter for the Z80 */
-#define OFF_A_L1_RXPC 0x12a /* Rx counter for the PC */
-#define OFF_A_L1_RXZ80 0x12b /* Rx counter for the Z80 */
-#define OFF_A_L1_REPENA 0x12c /* IT rep disable */
-#define OFF_A_L1_CHNR 0x12d /* L1 channel logical number */
-#define OFF_A_L1_CLKINI 0x12e /* Timer Const */
-#define OFF_A_L2_LINKUP 0x132 /* Linkup byte */
-#define OFF_A_L2_DAV 0x134 /* Rx DAV */
-#define OFF_A_L2_RxBUFP 0x136 /* Rx buff relative to membase */
-#define OFF_A_L2_TxEMPTY 0x138 /* Tx Empty */
-#define OFF_A_L2_TxBUFP 0x13a /* Tx Buf */
-#define OFF_A_L2_NBUFFS 0x144 /* Number of buffers to fetch */
-
-#define OFF_A_L2_SABMREC 0x164 /* LAPB no. of SABMs received */
-#define OFF_A_L2_SABMSENT 0x165 /* LAPB no. of SABMs sent */
-#define OFF_A_L2_REJREC 0x166 /* LAPB no. of REJs received */
-#define OFF_A_L2_REJSENT 0x167 /* LAPB no. of REJs sent */
-#define OFF_A_L2_FRMRREC 0x168 /* LAPB no. of FRMRs received */
-#define OFF_A_L2_FRMRSENT 0x169 /* LAPB no. of FRMRs sent */
-#define OFF_A_L2_PROTERR 0x16A /* LAPB no. of protocol errors rec'd */
-#define OFF_A_L2_LONGREC 0x16B /* LAPB no. of long frames */
-#define OFF_A_L2_INVNR 0x16C /* LAPB no. of invalid N(R)s rec'd */
-#define OFF_A_L2_UNDEFFR 0x16D /* LAPB no. of invalid frames */
-
-#define OFF_A_L2_T1 0x174 /* T1 timer */
-#define OFF_A_L2_ADDR 0x176 /* DCE = 1, DTE = 3 */
-
-#define COMX_CMD_INIT 1
-#define COMX_CMD_EXIT 2
-#define COMX_CMD_OPEN 16
-#define COMX_CMD_CLOSE 17
-
+++ /dev/null
-/*
- * Defines for comx-hw-slicecom.c - FALC-LH specific
- *
- * Author: Bartok Istvan <bartoki@itc.hu>
- * Last modified: Mon Feb 7 20:00:38 CET 2000
- *
- * :set tabstop=6
- */
-
-/*
- * Control register offsets on the LBI (page 90)
- * use it like:
- * lbi[ MODE ] = 0x34;
- */
-
-#define MODE 0x03
-#define IPC 0x08
-#define IMR0 0x14 /* Interrupt Mask Register 0 */
-#define IMR1 0x15
-#define IMR2 0x16
-#define IMR3 0x17
-#define IMR4 0x18
-#define IMR5 0x19
-#define FMR0 0x1a /* Framer Mode Register 0 */
-#define FMR1 0x1b
-#define FMR2 0x1c
-#define XSW 0x1e
-#define XSP 0x1f
-#define XC0 0x20
-#define XC1 0x21
-#define RC0 0x22
-#define RC1 0x23
-#define XPM0 0x24
-#define XPM1 0x25
-#define XPM2 0x26
-#define TSWM 0x27
-#define IDLE 0x29 /* Idle Code */
-#define LIM0 0x34
-#define LIM1 0x35
-#define PCD 0x36
-#define PCR 0x37
-#define LIM2 0x38
-
-/*
- * Status registers on the LBI (page 134)
- * these are read-only, use it like:
- * if( lbi[ FRS0 ] ) ...
- */
-
-#define FRS0 0x4c /* Framer Receive Status register 0 */
-#define FRS1 0x4d /* Framer Receive Status register 1 */
-#define FECL 0x50 /* Framing Error Counter low byte */ /* Counts FAS word receive errors */
-#define FECH 0x51 /* high byte */
-#define CVCL 0x52 /* Code Violation Counter low byte */ /* Counts bipolar and HDB3 code violations */
-#define CVCH 0x53 /* high byte */
-#define CEC1L 0x54 /* CRC4 Error Counter 1 low byte */ /* Counts CRC4 errors in the incoming stream */
-#define CEC1H 0x55 /* high byte */
-#define EBCL 0x56 /* E Bit error Counter low byte */ /* E-bits: the remote end sends them, when */
-#define EBCH 0x57 /* high byte */ /* it detected a CRC4-error */
-#define ISR0 0x68 /* Interrupt Status Register 0 */
-#define ISR1 0x69 /* Interrupt Status Register 1 */
-#define ISR2 0x6a /* Interrupt Status Register 2 */
-#define ISR3 0x6b /* Interrupt Status Register 3 */
-#define ISR5 0x6c /* Interrupt Status Register 5 */
-#define GIS 0x6e /* Global Interrupt Status Register */
-#define VSTR 0x6f /* version information */
-
-/*
- * Bit fields
- */
-
-#define FRS0_LOS (1 << 7)
-#define FRS0_AIS (1 << 6)
-#define FRS0_LFA (1 << 5)
-#define FRS0_RRA (1 << 4)
-#define FRS0_AUXP (1 << 3)
-#define FRS0_NMF (1 << 2)
-#define FRS0_LMFA (1 << 1)
-
-#define FRS1_XLS (1 << 1)
-#define FRS1_XLO (1)
-
-#define ISR2_FAR (1 << 7)
-#define ISR2_LFA (1 << 6)
-#define ISR2_MFAR (1 << 5)
-#define ISR2_T400MS (1 << 4)
-#define ISR2_AIS (1 << 3)
-#define ISR2_LOS (1 << 2)
-#define ISR2_RAR (1 << 1)
-#define ISR2_RA (1)
-
-#define ISR3_ES (1 << 7)
-#define ISR3_SEC (1 << 6)
-#define ISR3_LMFA16 (1 << 5)
-#define ISR3_AIS16 (1 << 4)
-#define ISR3_RA16 (1 << 3)
-#define ISR3_API (1 << 2)
-#define ISR3_RSN (1 << 1)
-#define ISR3_RSP (1)
-
-#define ISR5_XSP (1 << 7)
-#define ISR5_XSN (1 << 6)
+++ /dev/null
-#define HSCX_MTU 1600
-
-#define HSCX_ISTA 0x00
-#define HSCX_MASK 0x00
-#define HSCX_STAR 0x01
-#define HSCX_CMDR 0x01
-#define HSCX_MODE 0x02
-#define HSCX_TIMR 0x03
-#define HSCX_EXIR 0x04
-#define HSCX_XAD1 0x04
-#define HSCX_RBCL 0x05
-#define HSCX_SAD2 0x05
-#define HSCX_RAH1 0x06
-#define HSCX_RSTA 0x07
-#define HSCX_RAH2 0x07
-#define HSCX_RAL1 0x08
-#define HSCX_RCHR 0x09
-#define HSCX_RAL2 0x09
-#define HSCX_XBCL 0x0a
-#define HSCX_BGR 0x0b
-#define HSCX_CCR2 0x0c
-#define HSCX_RBCH 0x0d
-#define HSCX_XBCH 0x0d
-#define HSCX_VSTR 0x0e
-#define HSCX_RLCR 0x0e
-#define HSCX_CCR1 0x0f
-#define HSCX_FIFO 0x1e
-
-#define HSCX_HSCX_CHOFFS 0x400
-#define HSCX_SEROFFS 0x1000
-
-#define HSCX_RME 0x80
-#define HSCX_RPF 0x40
-#define HSCX_RSC 0x20
-#define HSCX_XPR 0x10
-#define HSCX_TIN 0x08
-#define HSCX_ICA 0x04
-#define HSCX_EXA 0x02
-#define HSCX_EXB 0x01
-
-#define HSCX_XMR 0x80
-#define HSCX_XDU 0x40
-#define HSCX_EXE 0x40
-#define HSCX_PCE 0x20
-#define HSCX_RFO 0x10
-#define HSCX_CSC 0x08
-#define HSCX_RFS 0x04
-
-#define HSCX_XDOV 0x80
-#define HSCX_XFW 0x40
-#define HSCX_XRNR 0x20
-#define HSCX_RRNR 0x10
-#define HSCX_RLI 0x08
-#define HSCX_CEC 0x04
-#define HSCX_CTS 0x02
-#define HSCX_WFA 0x01
-
-#define HSCX_RMC 0x80
-#define HSCX_RHR 0x40
-#define HSCX_RNR 0x20
-#define HSCX_XREP 0x20
-#define HSCX_STI 0x10
-#define HSCX_XTF 0x08
-#define HSCX_XIF 0x04
-#define HSCX_XME 0x02
-#define HSCX_XRES 0x01
-
-#define HSCX_AUTO 0x00
-#define HSCX_NONAUTO 0x40
-#define HSCX_TRANS 0x80
-#define HSCX_XTRANS 0xc0
-#define HSCX_ADM16 0x20
-#define HSCX_ADM8 0x00
-#define HSCX_TMD_EXT 0x00
-#define HSCX_TMD_INT 0x10
-#define HSCX_RAC 0x08
-#define HSCX_RTS 0x04
-#define HSCX_TLP 0x01
-
-#define HSCX_VFR 0x80
-#define HSCX_RDO 0x40
-#define HSCX_CRC 0x20
-#define HSCX_RAB 0x10
-
-#define HSCX_CIE 0x04
-#define HSCX_RIE 0x02
-
-#define HSCX_DMA 0x80
-#define HSCX_NRM 0x40
-#define HSCX_CAS 0x20
-#define HSCX_XC 0x10
-
-#define HSCX_OV 0x10
-
-#define HSCX_CD 0x80
-
-#define HSCX_RC 0x80
-
-#define HSCX_PU 0x80
-#define HSCX_NRZ 0x00
-#define HSCX_NRZI 0x40
-#define HSCX_ODS 0x10
-#define HSCX_ITF 0x08
+++ /dev/null
-/*
- * Defines for the mixcom board
- *
- * Author: Gergely Madarasz <gorgo@itc.hu>
- *
- * Copyright (C) 1999 ITConsult-Pro Co. <info@itc.hu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#define MIXCOM_IO_EXTENT 0x20
-
-#define MIXCOM_DEFAULT_IO 0x180
-#define MIXCOM_DEFAULT_IRQ 5
-
-#define MIXCOM_ID 0x11
-#define MIXCOM_SERIAL_OFFSET 0x1000
-#define MIXCOM_CHANNEL_OFFSET 0x400
-#define MIXCOM_IT_OFFSET 0xc14
-#define MIXCOM_STATUS_OFFSET 0xc14
-#define MIXCOM_ID_OFFSET 0xc10
-#define MIXCOM_ON 0x1
-#define MIXCOM_OFF 0x0
-
-/* Status register bits */
-
-#define MIXCOM_CTSB 0x1
-#define MIXCOM_CTSA 0x2
-#define MIXCOM_CHANNELNO 0x20
-#define MIXCOM_POWERFAIL 0x40
-#define MIXCOM_BOOT 0x80
+++ /dev/null
-/*
- * Defines for comx-hw-slicecom.c - MUNICH32X specific
- *
- * Author: Bartok Istvan <bartoki@itc.hu>
- * Last modified: Tue Jan 11 14:27:36 CET 2000
- *
- * :set tabstop=6
- */
-
-#define TXBUFFER_SIZE 1536 /* Max mennyit tud a kartya hardver atvenni */
-#define RXBUFFER_SIZE (TXBUFFER_SIZE+4) /* For Rx reasons it must be a multiple of 4, and =>4 (page 265) */
- /* +4 .. see page 265, bit FE */
- /* TOD: a MODE1-be nem is ezt teszem, hanem a TXBUFFER-t, lehet hogy nem is kell? */
-
-//#define PCI_VENDOR_ID_SIEMENS 0x110a
-#define PCI_DEVICE_ID_SIEMENS_MUNICH32X 0x2101
-
-/*
- * PCI config space registers (page 120)
- */
-
-#define MUNICH_PCI_PCIRES 0x4c /* 0xe0000 resets the chip */
-
-
-/*
- * MUNICH slave register offsets relative to base_address[0] (PCI BAR1) (page 181):
- * offsets are in bytes, registers are u32's, so we need a >>2 for indexing
- * the int[] by byte offsets. Use it like:
- *
- * bar1[ STAT ] = ~0L; or
- * x = bar1[ STAT ];
- */
-
-#define CONF (0x00 >> 2)
-#define CMD (0x04 >> 2)
-#define STAT (0x08 >> 2)
-#define STACK (0x08 >> 2)
-#define IMASK (0x0c >> 2)
-#define PIQBA (0x14 >> 2)
-#define PIQL (0x18 >> 2)
-#define MODE1 (0x20 >> 2)
-#define MODE2 (0x24 >> 2)
-#define CCBA (0x28 >> 2)
-#define TXPOLL (0x2c >> 2)
-#define TIQBA (0x30 >> 2)
-#define TIQL (0x34 >> 2)
-#define RIQBA (0x38 >> 2)
-#define RIQL (0x3c >> 2)
-#define LCONF (0x40 >> 2) /* LBI Configuration Register */
-#define LCCBA (0x44 >> 2) /* LBI Configuration Control Block */ /* DE: lehet hogy nem is kell? */
-#define LTIQBA (0x50 >> 2) /* DE: lehet hogy nem is kell? page 210: LBI DMA Controller intq - nem hasznalunk DMA-t.. */
-#define LTIQL (0x54 >> 2) /* DE: lehet hogy nem is kell? */
-#define LRIQBA (0x58 >> 2) /* DE: lehet hogy nem is kell? */
-#define LRIQL (0x5c >> 2) /* DE: lehet hogy nem is kell? */
-#define LREG0 (0x60 >> 2) /* LBI Indirect External Configuration register 0 */
-#define LREG1 (0x64 >> 2)
-#define LREG2 (0x68 >> 2)
-#define LREG3 (0x6c >> 2)
-#define LREG4 (0x70 >> 2)
-#define LREG5 (0x74 >> 2)
-#define LREG6 (0x78 >> 2) /* LBI Indirect External Configuration register 6 */
-#define LSTAT (0x7c >> 2) /* LBI Status Register */
-#define GPDIR (0x80 >> 2) /* General Purpose Bus DIRection - 0..input, 1..output */
-#define GPDATA (0x84 >> 2) /* General Purpose Bus DATA */
-
-
-/*
- * MUNICH commands: (they go into register CMD)
- */
-
-#define CMD_ARPCM 0x01 /* Action Request Serial PCM Core */
-#define CMD_ARLBI 0x02 /* Action Request LBI */
-
-
-/*
- * MUNICH event bits in the STAT, STACK, IMASK registers (page 188,189)
- */
-
-#define STAT_PTI (1 << 15)
-#define STAT_PRI (1 << 14)
-#define STAT_LTI (1 << 13)
-#define STAT_LRI (1 << 12)
-#define STAT_IOMI (1 << 11)
-#define STAT_SSCI (1 << 10)
-#define STAT_LBII (1 << 9)
-#define STAT_MBI (1 << 8)
-
-#define STAT_TI (1 << 6)
-#define STAT_TSPA (1 << 5)
-#define STAT_RSPA (1 << 4)
-#define STAT_LBIF (1 << 3)
-#define STAT_LBIA (1 << 2)
-#define STAT_PCMF (1 << 1)
-#define STAT_PCMA (1)
-
-/*
- * We do not handle these (and do not touch their STAT bits) in the interrupt loop
- */
-
-#define STAT_NOT_HANDLED_BY_INTERRUPT (STAT_PCMF | STAT_PCMA)
-
-
-/*
- * MUNICH MODE1/MODE2 slave register fields (page 193,196)
- * these are not all masks, MODE1_XX_YY are my magic values!
- */
-
-#define MODE1_PCM_E1 (1 << 31) /* E1, 2.048 Mbit/sec */
-#define MODE1_TBS_4 (1 << 24) /* TBS = 4 .. no Tx bit shift */
-#define MODE1_RBS_4 (1 << 18) /* RBS = 4 .. no Rx bit shift */
-#define MODE1_REN (1 << 15) /* Rx Enable */
-#define MODE1_MFL_MY TXBUFFER_SIZE /* Maximum Frame Length */
-#define MODE1_MAGIC (MODE1_PCM_E1 | MODE1_TBS_4 | MODE1_RBS_4 | MODE1_REN | MODE1_MFL_MY)
-
-#define MODE2_HPOLL (1 << 8) /* Hold Poll */
-#define MODE2_SPOLL (1 << 7) /* Slow Poll */
-#define MODE2_TSF (1) /* real magic - discovered by probing :) */
-// #define MODE2_MAGIC (MODE2_TSF)
-#define MODE2_MAGIC (MODE2_SPOLL | MODE2_TSF)
-
-
-/*
- * LCONF bits (page 205)
- * these are not all masks, LCONF_XX_YY are my magic values!
- */
-
-#define LCONF_IPA (1 << 31) /* Interrupt Pass. Use 1 for FALC54 */
-#define LCONF_DCA (1 << 30) /* Disregard the int's for Channel A - DMSM does not try to handle them */
-#define LCONF_DCB (1 << 29) /* Disregard the int's for Channel B */
-#define LCONF_EBCRES (1 << 22) /* Reset LBI External Bus Controller, 0..reset, 1..normal operation */
-#define LCONF_LBIRES (1 << 21) /* Reset LBI DMSM, 0..reset, 1..normal operation */
-#define LCONF_BTYP_16DEMUX (1 << 7) /* 16-bit demultiplexed bus */
-#define LCONF_ABM (1 << 4) /* Arbitration Master */
-
-/* writing LCONF_MAGIC1 followed by a LCONF_MAGIC2 into LCONF resets the EBC and DMSM: */
-
-#define LCONF_MAGIC1 (LCONF_BTYP_16DEMUX | LCONF_ABM | LCONF_IPA | LCONF_DCA | LCONF_DCB)
-#define LCONF_MAGIC2 (LCONF_MAGIC1 | LCONF_EBCRES | LCONF_LBIRES)
-
-
-/*
- * LREGx magic values if a FALC54 is on the LBI (page 217)
- */
-
-#define LREG0_MAGIC 0x00000264
-#define LREG1_MAGIC 0x6e6a6b66
-#define LREG2_MAGIC 0x00000264
-#define LREG3_MAGIC 0x6e686966
-#define LREG4_MAGIC 0x00000000
-#define LREG5_MAGIC ( (7<<27) | (3<<24) | (1<<21) | (7<<3) | (2<<9) )
-
-
-/*
- * PCM Action Specification fields (munich_ccb_t.action_spec)
- */
-
-#define CCB_ACTIONSPEC_IN (1 << 15) /* init */
-#define CCB_ACTIONSPEC_ICO (1 << 14) /* init only this channel */
-#define CCB_ACTIONSPEC_RES (1 << 6) /* reset all channels */
-#define CCB_ACTIONSPEC_LOC (1 << 5)
-#define CCB_ACTIONSPEC_LOOP (1 << 4)
-#define CCB_ACTIONSPEC_LOOPI (1 << 3)
-#define CCB_ACTIONSPEC_IA (1 << 2)
-
-
-/*
- * Interrupt Information bits in the TIQ, RIQ
- */
-
-#define PCM_INT_HI (1 << 12)
-#define PCM_INT_FI (1 << 11)
-#define PCM_INT_IFC (1 << 10)
-#define PCM_INT_SF (1 << 9)
-#define PCM_INT_ERR (1 << 8)
-#define PCM_INT_FO (1 << 7)
-#define PCM_INT_FE2 (1 << 6)
-
-#define PCM_INT_CHANNEL( info ) (info & 0x1F)
-
-
-/*
- * Rx status info in the rx_desc_t.status
- */
-
-#define RX_STATUS_SF (1 << 6)
-#define RX_STATUS_LOSS (1 << 5)
-#define RX_STATUS_CRCO (1 << 4)
-#define RX_STATUS_NOB (1 << 3)
-#define RX_STATUS_LFD (1 << 2)
-#define RX_STATUS_RA (1 << 1)
-#define RX_STATUS_ROF 1
+++ /dev/null
-static u8 firmware[]={
-0x60,0x00,0x00,0x16,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0xB9,0x40,0x00,0x00,0x00,0x00,0x00,
-0x10,0x14,0x42,0x80,0x4A,0xB0,0x09,0xB0,0x00,0x00,0x10,0x04,0x67,0x00,0x00,0x0E,
-0x06,0xB0,0x40,0x00,0x00,0x00,0x09,0xB0,0x00,0x00,0x10,0x04,0x58,0x80,0x0C,0x80,
-0x00,0x00,0x00,0x10,0x66,0x00,0xFF,0xDE,0x21,0xFC,0x00,0x00,0x16,0xBC,0x00,0x6C,
-0x21,0xFC,0x00,0x00,0x17,0x5E,0x01,0x00,0x21,0xFC,0x00,0x00,0x16,0xDE,0x01,0x78,
-0x21,0xFC,0x00,0x00,0x16,0xFE,0x01,0x74,0x21,0xFC,0x00,0x00,0x17,0x1E,0x01,0x70,
-0x21,0xFC,0x00,0x00,0x17,0x3E,0x01,0x6C,0x21,0xFC,0x00,0x00,0x18,0x4C,0x02,0x00,
-0x23,0xFC,0x78,0x00,0x00,0x00,0xFF,0xFC,0x15,0x48,0x33,0xFC,0x04,0x80,0xFF,0xFC,
-0x10,0x26,0x33,0xFC,0x01,0x10,0xFF,0xFC,0x10,0x2A,0x23,0xFC,0x00,0xD4,0x9F,0x40,
-0xFF,0xFC,0x15,0x40,0x23,0xFC,0x00,0x00,0x05,0x43,0xFF,0xF9,0x01,0x00,0x23,0xFC,
-0x00,0x00,0x05,0x43,0xFF,0xF9,0x01,0x14,0x23,0xFC,0x00,0x00,0x00,0x00,0xFF,0xF9,
-0x01,0x10,0x23,0xFC,0x00,0x00,0x00,0x08,0xFF,0xF9,0x01,0x24,0x23,0xFC,0x00,0x00,
-0x01,0x01,0xFF,0xF9,0x01,0x28,0x00,0xB9,0x00,0x0F,0x03,0x00,0xFF,0xF9,0x00,0xE8,
-0x23,0xFC,0x00,0x00,0x00,0x01,0xFF,0xF9,0x00,0xD4,0x61,0x00,0x06,0x74,0x33,0xFC,
-0xFF,0xFF,0xFF,0xFC,0x15,0x52,0x42,0x79,0xFF,0xFC,0x15,0x50,0x42,0x79,0xFF,0xFC,
-0x15,0x64,0x2E,0x3A,0x08,0x50,0x42,0xB9,0x00,0x00,0x19,0x54,0x4A,0x87,0x66,0x00,
-0x00,0x0E,0x4E,0x72,0x22,0x00,0x46,0xFC,0x27,0x00,0x60,0x00,0xFF,0xE6,0x42,0x80,
-0x42,0x86,0x08,0x07,0x00,0x04,0x67,0x00,0x00,0x0A,0x08,0x87,0x00,0x00,0x61,0x00,
-0x02,0xA0,0x08,0x07,0x00,0x00,0x67,0x00,0x00,0x06,0x61,0x00,0x00,0x36,0x08,0x07,
-0x00,0x08,0x67,0x00,0x00,0x06,0x61,0x00,0x02,0xB8,0x08,0x07,0x00,0x0C,0x67,0x00,
-0x00,0x0A,0x61,0x00,0x04,0x94,0x61,0x00,0x03,0x60,0xE2,0x8F,0x58,0x80,0x0C,0x80,
-0x00,0x00,0x00,0x10,0x66,0x00,0xFF,0xBC,0x23,0xC6,0xFF,0xF9,0x00,0xE4,0x60,0x00,
-0xFF,0x92,0x20,0x70,0x09,0xB0,0x00,0x00,0x10,0x04,0x4A,0xA8,0x00,0x00,0x66,0x00,
-0x02,0x4E,0x21,0x7C,0x00,0x00,0x00,0x01,0x00,0x00,0x42,0xB0,0x09,0xB0,0x00,0x00,
-0x19,0x58,0x42,0xB0,0x09,0xB0,0x00,0x00,0x19,0x68,0x42,0xB0,0x09,0xB0,0x00,0x00,
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-0x6F,0x70,0x79,0x72,0x69,0x67,0x68,0x74,0x20,0x28,0x43,0x29,0x20,0x32,0x30,0x30,
-0x33,0x20,0x4B,0x72,0x7A,0x79,0x73,0x7A,0x74,0x6F,0x66,0x20,0x48,0x61,0x6C,0x61,
-0x73,0x61,0x20,0x3C,0x6B,0x68,0x63,0x40,0x70,0x6D,0x2E,0x77,0x61,0x77,0x2E,0x70,
-0x6C,0x3E,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
-};
+++ /dev/null
-/*
- * (C) 2004 Margit Schubert-While <margitsw@t-online.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-/*
- * Compatibility header file to aid support of different kernel versions
- */
-
-#ifdef PRISM54_COMPAT24
-#include "prismcompat24.h"
-#else /* PRISM54_COMPAT24 */
-
-#ifndef _PRISM_COMPAT_H
-#define _PRISM_COMPAT_H
-
-#include <linux/device.h>
-#include <linux/firmware.h>
-#include <linux/config.h>
-#include <linux/moduleparam.h>
-#include <linux/workqueue.h>
-#include <linux/compiler.h>
-
-#if !defined(CONFIG_FW_LOADER) && !defined(CONFIG_FW_LOADER_MODULE)
-#error Firmware Loading is not configured in the kernel !
-#endif
-
-#define prism54_synchronize_irq(irq) synchronize_irq(irq)
-
-#define PRISM_FW_PDEV &priv->pdev->dev
-
-#endif /* _PRISM_COMPAT_H */
-#endif /* PRISM54_COMPAT24 */
+++ /dev/null
-/*
- * Driver for the Cirrus PD6729 PCI-PCMCIA bridge.
- *
- * Based on the i82092.c driver.
- *
- * This software may be used and distributed according to the terms of
- * the GNU General Public License, incorporated herein by reference.
- */
-
-#include <linux/kernel.h>
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/workqueue.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-
-#include <pcmcia/cs_types.h>
-#include <pcmcia/ss.h>
-#include <pcmcia/cs.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-
-#include "pd6729.h"
-#include "i82365.h"
-#include "cirrus.h"
-
-MODULE_LICENSE("GPL");
-
-#define MAX_SOCKETS 2
-
-/* simple helper functions */
-/* External clock time, in nanoseconds. 120 ns = 8.33 MHz */
-#define to_cycles(ns) ((ns)/120)
-
-static spinlock_t port_lock = SPIN_LOCK_UNLOCKED;
-
-/* basic value read/write functions */
-
-static unsigned char indirect_read(struct pd6729_socket *socket, unsigned short reg)
-{
- unsigned long port;
- unsigned char val;
- unsigned long flags;
-
- spin_lock_irqsave(&port_lock, flags);
- reg += socket->number * 0x40;
- port = socket->io_base;
- outb(reg, port);
- val = inb(port + 1);
- spin_unlock_irqrestore(&port_lock, flags);
-
- return val;
-}
-
-static unsigned short indirect_read16(struct pd6729_socket *socket, unsigned short reg)
-{
- unsigned long port;
- unsigned short tmp;
- unsigned long flags;
-
- spin_lock_irqsave(&port_lock, flags);
- reg = reg + socket->number * 0x40;
- port = socket->io_base;
- outb(reg, port);
- tmp = inb(port + 1);
- reg++;
- outb(reg, port);
- tmp = tmp | (inb(port + 1) << 8);
- spin_unlock_irqrestore(&port_lock, flags);
-
- return tmp;
-}
-
-static void indirect_write(struct pd6729_socket *socket, unsigned short reg, unsigned char value)
-{
- unsigned long port;
- unsigned long flags;
-
- spin_lock_irqsave(&port_lock, flags);
- reg = reg + socket->number * 0x40;
- port = socket->io_base;
- outb(reg, port);
- outb(value, port + 1);
- spin_unlock_irqrestore(&port_lock, flags);
-}
-
-static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg, unsigned char mask)
-{
- unsigned long port;
- unsigned char val;
- unsigned long flags;
-
- spin_lock_irqsave(&port_lock, flags);
- reg = reg + socket->number * 0x40;
- port = socket->io_base;
- outb(reg, port);
- val = inb(port + 1);
- val |= mask;
- outb(reg, port);
- outb(val, port + 1);
- spin_unlock_irqrestore(&port_lock, flags);
-}
-
-static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg, unsigned char mask)
-{
- unsigned long port;
- unsigned char val;
- unsigned long flags;
-
- spin_lock_irqsave(&port_lock, flags);
- reg = reg + socket->number * 0x40;
- port = socket->io_base;
- outb(reg, port);
- val = inb(port + 1);
- val &= ~mask;
- outb(reg, port);
- outb(val, port + 1);
- spin_unlock_irqrestore(&port_lock, flags);
-}
-
-static void indirect_write16(struct pd6729_socket *socket, unsigned short reg, unsigned short value)
-{
- unsigned long port;
- unsigned char val;
- unsigned long flags;
-
- spin_lock_irqsave(&port_lock, flags);
- reg = reg + socket->number * 0x40;
- port = socket->io_base;
-
- outb(reg, port);
- val = value & 255;
- outb(val, port + 1);
-
- reg++;
-
- outb(reg, port);
- val = value >> 8;
- outb(val, port + 1);
- spin_unlock_irqrestore(&port_lock, flags);
-}
-
-/* Interrupt handler functionality */
-
-static irqreturn_t pd6729_interrupt(int irq, void *dev, struct pt_regs *regs)
-{
- struct pd6729_socket *socket = (struct pd6729_socket *)dev;
- int i;
- int loopcount = 0;
- int handled = 0;
- unsigned int events, active = 0;
-
- while (1) {
- loopcount++;
- if (loopcount > 20) {
- printk(KERN_ERR "pd6729: infinite eventloop in interrupt\n");
- break;
- }
-
- active = 0;
-
- for (i = 0; i < MAX_SOCKETS; i++) {
- unsigned int csc;
-
- /* card status change register */
- csc = indirect_read(&socket[i], I365_CSC);
- if (csc == 0) /* no events on this socket */
- continue;
-
- handled = 1;
- events = 0;
-
- if (csc & I365_CSC_DETECT) {
- events |= SS_DETECT;
- dprintk("Card detected in socket %i!\n", i);
- }
-
- if (indirect_read(&socket[i], I365_INTCTL) & I365_PC_IOCARD) {
- /* For IO/CARDS, bit 0 means "read the card" */
- events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
- } else {
- /* Check for battery/ready events */
- events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
- events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
- events |= (csc & I365_CSC_READY) ? SS_READY : 0;
- }
-
- if (events) {
- pcmcia_parse_events(&socket[i].socket, events);
- }
- active |= events;
- }
-
- if (active == 0) /* no more events to handle */
- break;
- }
- return IRQ_RETVAL(handled);
-}
-
-/* socket functions */
-
-static void set_bridge_state(struct pd6729_socket *socket)
-{
- indirect_write(socket, I365_GBLCTL, 0x00);
- indirect_write(socket, I365_GENCTL, 0x00);
-
- indirect_setbit(socket, I365_INTCTL, 0x08);
-}
-
-static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
-{
- struct pd6729_socket *socket = container_of(sock, struct pd6729_socket, socket);
- unsigned int status;
- unsigned int data;
- struct pd6729_socket *t;
-
- /* Interface Status Register */
- status = indirect_read(socket, I365_STATUS);
- *value = 0;
-
- if ((status & I365_CS_DETECT) == I365_CS_DETECT) {
- *value |= SS_DETECT;
- }
-
- /* IO cards have a different meaning of bits 0,1 */
- /* Also notice the inverse-logic on the bits */
- if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
- /* IO card */
- if (!(status & I365_CS_STSCHG))
- *value |= SS_STSCHG;
- } else {
- /* non I/O card */
- if (!(status & I365_CS_BVD1))
- *value |= SS_BATDEAD;
- if (!(status & I365_CS_BVD2))
- *value |= SS_BATWARN;
- }
-
- if (status & I365_CS_WRPROT)
- *value |= SS_WRPROT; /* card is write protected */
-
- if (status & I365_CS_READY)
- *value |= SS_READY; /* card is not busy */
-
- if (status & I365_CS_POWERON)
- *value |= SS_POWERON; /* power is applied to the card */
-
- t = (socket->number) ? socket : socket + 1;
- indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
- data = indirect_read16(t, PD67_EXT_DATA);
- *value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
-
- return 0;
-}
-
-
-static int pd6729_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
-{
- struct pd6729_socket *socket = container_of(sock, struct pd6729_socket, socket);
- unsigned char reg, vcc, vpp;
-
- state->flags = 0;
- state->Vcc = 0;
- state->Vpp = 0;
- state->io_irq = 0;
- state->csc_mask = 0;
-
- /* First the power status of the socket */
- /* PCTRL - Power Control Register */
- reg = indirect_read(socket, I365_POWER);
-
- if (reg & I365_PWR_AUTO)
- state->flags |= SS_PWR_AUTO; /* Automatic Power Switch */
-
- if (reg & I365_PWR_OUT)
- state->flags |= SS_OUTPUT_ENA; /* Output signals are enabled */
-
- vcc = reg & I365_VCC_MASK; vpp = reg & I365_VPP1_MASK;
-
- if (reg & I365_VCC_5V) {
- state->Vcc = (indirect_read(socket, PD67_MISC_CTL_1) &
- PD67_MC1_VCC_3V) ? 33 : 50;
-
- if (vpp == I365_VPP1_5V) {
- if (state->Vcc == 50)
- state->Vpp = 50;
- else
- state->Vpp = 33;
- }
- if (vpp == I365_VPP1_12V)
- state->Vpp = 120;
- }
-
- /* Now the IO card, RESET flags and IO interrupt */
- /* IGENC, Interrupt and General Control */
- reg = indirect_read(socket, I365_INTCTL);
-
- if ((reg & I365_PC_RESET) == 0)
- state->flags |= SS_RESET;
- if (reg & I365_PC_IOCARD)
- state->flags |= SS_IOCARD; /* This is an IO card */
-
- /* Set the IRQ number */
- state->io_irq = socket->socket.pci_irq;
-
- /* Card status change */
- /* CSCICR, Card Status Change Interrupt Configuration */
- reg = indirect_read(socket, I365_CSCINT);
-
- if (reg & I365_CSC_DETECT)
- state->csc_mask |= SS_DETECT; /* Card detect is enabled */
-
- if (state->flags & SS_IOCARD) {/* IO Cards behave different */
- if (reg & I365_CSC_STSCHG)
- state->csc_mask |= SS_STSCHG;
- } else {
- if (reg & I365_CSC_BVD1)
- state->csc_mask |= SS_BATDEAD;
- if (reg & I365_CSC_BVD2)
- state->csc_mask |= SS_BATWARN;
- if (reg & I365_CSC_READY)
- state->csc_mask |= SS_READY;
- }
-
- return 0;
-}
-
-static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
-{
- struct pd6729_socket *socket = container_of(sock, struct pd6729_socket, socket);
- unsigned char reg;
-
- /* First, set the global controller options */
-
- set_bridge_state(socket);
-
- /* Values for the IGENC register */
-
- reg = 0;
- /* The reset bit has "inverse" logic */
- if (!(state->flags & SS_RESET))
- reg = reg | I365_PC_RESET;
- if (state->flags & SS_IOCARD)
- reg = reg | I365_PC_IOCARD;
-
- /* IGENC, Interrupt and General Control Register */
- indirect_write(socket, I365_INTCTL, reg);
-
- /* Power registers */
-
- reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
-
- if (state->flags & SS_PWR_AUTO) {
- dprintk("Auto power\n");
- reg |= I365_PWR_AUTO; /* automatic power mngmnt */
- }
- if (state->flags & SS_OUTPUT_ENA) {
- dprintk("Power Enabled\n");
- reg |= I365_PWR_OUT; /* enable power */
- }
-
- switch (state->Vcc) {
- case 0:
- break;
- case 33:
- dprintk("setting voltage to Vcc to 3.3V on socket %i\n",
- socket->number);
- reg |= I365_VCC_5V;
- indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
- break;
- case 50:
- dprintk("setting voltage to Vcc to 5V on socket %i\n",
- socket->number);
- reg |= I365_VCC_5V;
- indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
- break;
- default:
- dprintk("pd6729: pd6729_set_socket called with invalid VCC power value: %i\n",
- state->Vcc);
- return -EINVAL;
- }
-
- switch (state->Vpp) {
- case 0:
- dprintk("not setting Vpp on socket %i\n", socket->number);
- break;
- case 33:
- case 50:
- dprintk("setting Vpp to Vcc for socket %i\n", socket->number);
- reg |= I365_VPP1_5V;
- break;
- case 120:
- dprintk("setting Vpp to 12.0\n");
- reg |= I365_VPP1_12V;
- break;
- default:
- dprintk("pd6729: pd6729_set_socket called with invalid VPP power value: %i\n",
- state->Vpp);
- return -EINVAL;
- }
-
- /* only write if changed */
- if (reg != indirect_read(socket, I365_POWER))
- indirect_write(socket, I365_POWER, reg);
-
- /* Now, specifiy that all interrupts are to be done as PCI interrupts */
- indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
- indirect_write(socket, PD67_EXT_DATA, PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ);
-
- /* Enable specific interrupt events */
-
- reg = 0x00;
- if (state->csc_mask & SS_DETECT) {
- reg |= I365_CSC_DETECT;
- }
- if (state->flags & SS_IOCARD) {
- if (state->csc_mask & SS_STSCHG)
- reg |= I365_CSC_STSCHG;
- } else {
- if (state->csc_mask & SS_BATDEAD)
- reg |= I365_CSC_BVD1;
- if (state->csc_mask & SS_BATWARN)
- reg |= I365_CSC_BVD2;
- if (state->csc_mask & SS_READY)
- reg |= I365_CSC_READY;
- }
- reg |= 0x30; /* management IRQ: PCI INTA# = "irq 3" */
- indirect_write(socket, I365_CSCINT, reg);
-
- reg = indirect_read(socket, I365_INTCTL);
- reg |= 0x03; /* card IRQ: PCI INTA# = "irq 3" */
- indirect_write(socket, I365_INTCTL, reg);
-
- /* now clear the (probably bogus) pending stuff by doing a dummy read */
- (void)indirect_read(socket, I365_CSC);
-
- return 0;
-}
-
-static int pd6729_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
-{
- struct pd6729_socket *socket = container_of(sock, struct pd6729_socket, socket);
- unsigned char map, ioctl;
-
- map = io->map;
-
- /* Check error conditions */
- if (map > 1) {
- dprintk("pd6729_set_io_map with invalid map");
- return -EINVAL;
- }
-
- /* Turn off the window before changing anything */
- if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
- indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
-
-/* dprintk("set_io_map: Setting range to %x - %x\n", io->start, io->stop);*/
-
- /* write the new values */
- indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
- indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
-
- ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
-
- if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
- if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
- if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
-
- indirect_write(socket, I365_IOCTL, ioctl);
-
- /* Turn the window back on if needed */
- if (io->flags & MAP_ACTIVE)
- indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
-
- return 0;
-}
-
-static int pd6729_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
-{
- struct pd6729_socket *socket = container_of(sock, struct pd6729_socket, socket);
- unsigned short base, i;
- unsigned char map;
-
- map = mem->map;
- if (map > 4) {
- printk("pd6729_set_mem_map: invalid map");
- return -EINVAL;
- }
-
- if ((mem->sys_start > mem->sys_stop) || (mem->speed > 1000)) {
- printk("pd6729_set_mem_map: invalid address / speed");
- /* printk("invalid mem map for socket %i : %lx to %lx with a start of %x\n",
- sock, mem->sys_start, mem->sys_stop, mem->card_start); */
- return -EINVAL;
- }
-
- /* Turn off the window before changing anything */
- if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
- indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
-
- /* write the start address */
- base = I365_MEM(map);
- i = (mem->sys_start >> 12) & 0x0fff;
- if (mem->flags & MAP_16BIT)
- i |= I365_MEM_16BIT;
- if (mem->flags & MAP_0WS)
- i |= I365_MEM_0WS;
- indirect_write16(socket, base + I365_W_START, i);
-
- /* write the stop address */
-
- i= (mem->sys_stop >> 12) & 0x0fff;
- switch (to_cycles(mem->speed)) {
- case 0:
- break;
- case 1:
- i |= I365_MEM_WS0;
- break;
- case 2:
- i |= I365_MEM_WS1;
- break;
- default:
- i |= I365_MEM_WS1 | I365_MEM_WS0;
- break;
- }
-
- indirect_write16(socket, base + I365_W_STOP, i);
-
- /* Take care of high byte */
- indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
- indirect_write(socket, PD67_EXT_DATA, mem->sys_start >> 24);
-
- /* card start */
-
- i = ((mem->card_start - mem->sys_start) >> 12) & 0x3fff;
- if (mem->flags & MAP_WRPROT)
- i |= I365_MEM_WRPROT;
- if (mem->flags & MAP_ATTRIB) {
-/* dprintk("requesting attribute memory for socket %i\n",
- socket->number);*/
- i |= I365_MEM_REG;
- } else {
-/* dprintk("requesting normal memory for socket %i\n",
- socket->number);*/
- }
- indirect_write16(socket, base + I365_W_OFF, i);
-
- /* Enable the window if necessary */
- if (mem->flags & MAP_ACTIVE)
- indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
-
- return 0;
-}
-
-static int pd6729_suspend(struct pcmcia_socket *sock)
-{
- return pd6729_set_socket(sock, &dead_socket);
-}
-
-static int pd6729_init(struct pcmcia_socket *sock)
-{
- int i;
- struct resource res = { .end = 0x0fff };
- pccard_io_map io = { 0, 0, 0, 0, 1 };
- pccard_mem_map mem = { .res = &res, .sys_stop = 0x0fff };
-
- pd6729_set_socket(sock, &dead_socket);
- for (i = 0; i < 2; i++) {
- io.map = i;
- pd6729_set_io_map(sock, &io);
- }
- for (i = 0; i < 5; i++) {
- mem.map = i;
- pd6729_set_mem_map(sock, &mem);
- }
-
- return 0;
-}
-
-
-/* the pccard structure and its functions */
-static struct pccard_operations pd6729_operations = {
- .init = pd6729_init,
- .suspend = pd6729_suspend,
- .get_status = pd6729_get_status,
- .get_socket = pd6729_get_socket,
- .set_socket = pd6729_set_socket,
- .set_io_map = pd6729_set_io_map,
- .set_mem_map = pd6729_set_mem_map,
-};
-
-static int __devinit pd6729_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
- int i, j, ret;
- char configbyte;
- struct pd6729_socket *socket;
-
- socket = kmalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS, GFP_KERNEL);
- if (!socket)
- return -ENOMEM;
-
- memset(socket, 0, sizeof(struct pd6729_socket) * MAX_SOCKETS);
-
- if ((ret = pci_enable_device(dev)))
- goto err_out_free_mem;
-
- printk(KERN_INFO "pd6729: Cirrus PD6729 PCI to PCMCIA Bridge at 0x%lx on irq %d\n",
- pci_resource_start(dev, 0), dev->irq);
- printk(KERN_INFO "pd6729: configured as a %d socket device.\n", MAX_SOCKETS);
- /* Since we have no memory BARs some firmware we may not
- have had PCI_COMMAND_MEM enabled, yet the device needs
- it. */
- pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
- if (!(configbyte & PCI_COMMAND_MEMORY)) {
- printk(KERN_DEBUG "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
- configbyte |= PCI_COMMAND_MEMORY;
- pci_write_config_byte(dev, PCI_COMMAND, configbyte);
- }
-
- ret = pci_request_regions(dev, "pd6729");
- if (ret) {
- printk(KERN_INFO "pd6729: pci request region failed.\n");
- goto err_out_disable;
- }
-
- for (i = 0; i < MAX_SOCKETS; i++) {
- socket[i].io_base = pci_resource_start(dev, 0);
- socket[i].socket.features |= SS_CAP_PCCARD;
- socket[i].socket.map_size = 0x1000;
- socket[i].socket.irq_mask = 0;
- socket[i].socket.pci_irq = dev->irq;
- socket[i].socket.owner = THIS_MODULE;
-
- socket[i].number = i;
-
- socket[i].socket.ops = &pd6729_operations;
- socket[i].socket.dev.dev = &dev->dev;
- socket[i].socket.driver_data = &socket[i];
- }
-
- pci_set_drvdata(dev, socket);
-
- /* Register the interrupt handler */
- if ((ret = request_irq(dev->irq, pd6729_interrupt, SA_SHIRQ, "pd6729", socket))) {
- printk(KERN_ERR "pd6729: Failed to register irq %d, aborting\n", dev->irq);
- goto err_out_free_res;
- }
-
- for (i = 0; i < MAX_SOCKETS; i++) {
- ret = pcmcia_register_socket(&socket[i].socket);
- if (ret) {
- printk(KERN_INFO "pd6729: pcmcia_register_socket failed.\n");
- for (j = 0; j < i ; j++)
- pcmcia_unregister_socket(&socket[j].socket);
- goto err_out_free_res2;
- }
- }
-
- return 0;
-
- err_out_free_res2:
- free_irq(dev->irq, socket);
- err_out_free_res:
- pci_release_regions(dev);
- err_out_disable:
- pci_disable_device(dev);
-
- err_out_free_mem:
- kfree(socket);
- return ret;
-}
-
-static void __devexit pd6729_pci_remove(struct pci_dev *dev)
-{
- int i;
- struct pd6729_socket *socket = pci_get_drvdata(dev);
-
- for (i = 0; i < MAX_SOCKETS; i++)
- pcmcia_unregister_socket(&socket[i].socket);
-
- free_irq(dev->irq, socket);
- pci_release_regions(dev);
- pci_disable_device(dev);
-
- kfree(socket);
-}
-
-static int pd6729_socket_suspend(struct pci_dev *dev, u32 state)
-{
- return pcmcia_socket_dev_suspend(&dev->dev, state);
-}
-
-static int pd6729_socket_resume(struct pci_dev *dev)
-{
- return pcmcia_socket_dev_resume(&dev->dev);
-}
-
-static struct pci_device_id pd6729_pci_ids[] = {
- {
- .vendor = PCI_VENDOR_ID_CIRRUS,
- .device = PCI_DEVICE_ID_CIRRUS_6729,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- },
- { }
-};
-MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
-
-static struct pci_driver pd6729_pci_drv = {
- .name = "pd6729",
- .id_table = pd6729_pci_ids,
- .probe = pd6729_pci_probe,
- .remove = __devexit_p(pd6729_pci_remove),
- .suspend = pd6729_socket_suspend,
- .resume = pd6729_socket_resume,
-};
-
-static int pd6729_module_init(void)
-{
- return pci_module_init(&pd6729_pci_drv);
-}
-
-static void pd6729_module_exit(void)
-{
- pci_unregister_driver(&pd6729_pci_drv);
-}
-
-module_init(pd6729_module_init);
-module_exit(pd6729_module_exit);
+++ /dev/null
-#ifndef _INCLUDE_GUARD_PD6729_H_
-#define _INCLUDE_GUARD_PD6729_H_
-
-/* Debuging defines */
-#ifdef NOTRACE
-#define dprintk(fmt, args...) printk(fmt , ## args)
-#else
-#define dprintk(fmt, args...) do {} while (0)
-#endif
-
-/* Flags for I365_GENCTL */
-#define I365_DF_VS1 0x40 /* DF-step Voltage Sense */
-#define I365_DF_VS2 0x80
-
-/* Fields in PD67_EXTERN_DATA */
-#define PD67_EXD_VS1(s) (0x01 << ((s) << 1))
-#define PD67_EXD_VS2(s) (0x02 << ((s) << 1))
-
-
-
-
-struct pd6729_socket {
- int number;
- unsigned long io_base; /* base io address of the socket */
- struct pcmcia_socket socket;
-};
-
-#endif
+++ /dev/null
-/*======================================================================
-
- Device driver for the PCMCIA control functionality of StrongARM
- SA-1100 microprocessors.
-
- The contents of this file are subject to the Mozilla Public
- License Version 1.1 (the "License"); you may not use this file
- except in compliance with the License. You may obtain a copy of
- the License at http://www.mozilla.org/MPL/
-
- Software distributed under the License is distributed on an "AS
- IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- implied. See the License for the specific language governing
- rights and limitations under the License.
-
- The initial developer of the original code is John G. Dorsey
- <john+@cs.cmu.edu>. Portions created by John G. Dorsey are
- Copyright (C) 1999 John G. Dorsey. All Rights Reserved.
-
- Alternatively, the contents of this file may be used under the
- terms of the GNU Public License version 2 (the "GPL"), in which
- case the provisions of the GPL are applicable instead of the
- above. If you wish to allow the use of your version of this file
- only under the terms of the GPL and not to allow others to use
- your version of this file under the MPL, indicate your decision
- by deleting the provisions above and replace them with the notice
- and other provisions required by the GPL. If you do not delete
- the provisions above, a recipient may use your version of this
- file under either the MPL or the GPL.
-
-======================================================================*/
-
-#if !defined(_PCMCIA_SA1100_H)
-# define _PCMCIA_SA1100_H
-
-#include <pcmcia/cs_types.h>
-#include <pcmcia/ss.h>
-#include <pcmcia/bulkmem.h>
-#include <pcmcia/cistpl.h>
-#include "cs_internal.h"
-#include "sa1100_generic.h"
-
-/* MECR: Expansion Memory Configuration Register
- * (SA-1100 Developers Manual, p.10-13; SA-1110 Developers Manual, p.10-24)
- *
- * MECR layout is:
- *
- * FAST1 BSM1<4:0> BSA1<4:0> BSIO1<4:0> FAST0 BSM0<4:0> BSA0<4:0> BSIO0<4:0>
- *
- * (This layout is actually true only for the SA-1110; the FASTn bits are
- * reserved on the SA-1100.)
- */
-
-#define MECR_SOCKET_0_SHIFT (0)
-#define MECR_SOCKET_1_SHIFT (16)
-
-#define MECR_BS_MASK (0x1f)
-#define MECR_FAST_MODE_MASK (0x01)
-
-#define MECR_BSIO_SHIFT (0)
-#define MECR_BSA_SHIFT (5)
-#define MECR_BSM_SHIFT (10)
-#define MECR_FAST_SHIFT (15)
-
-#define MECR_SET(mecr, sock, shift, mask, bs) \
-((mecr)=((mecr)&~(((mask)<<(shift))<<\
- ((sock)==0?MECR_SOCKET_0_SHIFT:MECR_SOCKET_1_SHIFT)))|\
- (((bs)<<(shift))<<((sock)==0?MECR_SOCKET_0_SHIFT:MECR_SOCKET_1_SHIFT)))
-
-#define MECR_GET(mecr, sock, shift, mask) \
-((((mecr)>>(((sock)==0)?MECR_SOCKET_0_SHIFT:MECR_SOCKET_1_SHIFT))>>\
- (shift))&(mask))
-
-#define MECR_BSIO_SET(mecr, sock, bs) \
-MECR_SET((mecr), (sock), MECR_BSIO_SHIFT, MECR_BS_MASK, (bs))
-
-#define MECR_BSIO_GET(mecr, sock) \
-MECR_GET((mecr), (sock), MECR_BSIO_SHIFT, MECR_BS_MASK)
-
-#define MECR_BSA_SET(mecr, sock, bs) \
-MECR_SET((mecr), (sock), MECR_BSA_SHIFT, MECR_BS_MASK, (bs))
-
-#define MECR_BSA_GET(mecr, sock) \
-MECR_GET((mecr), (sock), MECR_BSA_SHIFT, MECR_BS_MASK)
-
-#define MECR_BSM_SET(mecr, sock, bs) \
-MECR_SET((mecr), (sock), MECR_BSM_SHIFT, MECR_BS_MASK, (bs))
-
-#define MECR_BSM_GET(mecr, sock) \
-MECR_GET((mecr), (sock), MECR_BSM_SHIFT, MECR_BS_MASK)
-
-#define MECR_FAST_SET(mecr, sock, fast) \
-MECR_SET((mecr), (sock), MECR_FAST_SHIFT, MECR_FAST_MODE_MASK, (fast))
-
-#define MECR_FAST_GET(mecr, sock) \
-MECR_GET((mecr), (sock), MECR_FAST_SHIFT, MECR_FAST_MODE_MASK)
-
-
-/* This function implements the BS value calculation for setting the MECR
- * using integer arithmetic:
- */
-static inline unsigned int sa1100_pcmcia_mecr_bs(unsigned int pcmcia_cycle_ns,
- unsigned int cpu_clock_khz){
- unsigned int t = ((pcmcia_cycle_ns * cpu_clock_khz) / 6) - 1000000;
- return (t / 1000000) + (((t % 1000000) == 0) ? 0 : 1);
-}
-
-/* This function returns the (approxmiate) command assertion period, in
- * nanoseconds, for a given CPU clock frequency and MECR BS value:
- */
-static inline unsigned int sa1100_pcmcia_cmd_time(unsigned int cpu_clock_khz,
- unsigned int pcmcia_mecr_bs){
- return (((10000000 * 2) / cpu_clock_khz) * (3 * (pcmcia_mecr_bs + 1))) / 10;
-}
-
-
-/* SA-1100 PCMCIA Memory and I/O timing
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- * The SA-1110 Developer's Manual, section 10.2.5, says the following:
- *
- * "To calculate the recommended BS_xx value for each address space:
- * divide the command width time (the greater of twIOWR and twIORD,
- * or the greater of twWE and twOE) by processor cycle time; divide
- * by 2; divide again by 3 (number of BCLK's per command assertion);
- * round up to the next whole number; and subtract 1."
- *
- * The PC Card Standard, Release 7, section 4.13.4, says that twIORD
- * has a minimum value of 165ns. Section 4.13.5 says that twIOWR has
- * a minimum value of 165ns, as well. Section 4.7.2 (describing
- * common and attribute memory write timing) says that twWE has a
- * minimum value of 150ns for a 250ns cycle time (for 5V operation;
- * see section 4.7.4), or 300ns for a 600ns cycle time (for 3.3V
- * operation, also section 4.7.4). Section 4.7.3 says that taOE
- * has a maximum value of 150ns for a 300ns cycle time (for 5V
- * operation), or 300ns for a 600ns cycle time (for 3.3V operation).
- *
- * When configuring memory maps, Card Services appears to adopt the policy
- * that a memory access time of "0" means "use the default." The default
- * PCMCIA I/O command width time is 165ns. The default PCMCIA 5V attribute
- * and memory command width time is 150ns; the PCMCIA 3.3V attribute and
- * memory command width time is 300ns.
- */
-#define SA1100_PCMCIA_IO_ACCESS (165)
-#define SA1100_PCMCIA_5V_MEM_ACCESS (150)
-#define SA1100_PCMCIA_3V_MEM_ACCESS (300)
-
-
-/* The socket driver actually works nicely in interrupt-driven form,
- * so the (relatively infrequent) polling is "just to be sure."
- */
-#define SA1100_PCMCIA_POLL_PERIOD (2*HZ)
-
-struct pcmcia_low_level;
-
-/* I/O pins replacing memory pins
- * (PCMCIA System Architecture, 2nd ed., by Don Anderson, p.75)
- *
- * These signals change meaning when going from memory-only to
- * memory-or-I/O interface:
- */
-#define iostschg bvd1
-#define iospkr bvd2
-
-#endif /* !defined(_PCMCIA_SA1100_H) */
+++ /dev/null
-/*======================================================================
-
- Device driver for the PCMCIA control functionality of StrongARM
- SA-1100 microprocessors.
-
- The contents of this file are subject to the Mozilla Public
- License Version 1.1 (the "License"); you may not use this file
- except in compliance with the License. You may obtain a copy of
- the License at http://www.mozilla.org/MPL/
-
- Software distributed under the License is distributed on an "AS
- IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- implied. See the License for the specific language governing
- rights and limitations under the License.
-
- The initial developer of the original code is John G. Dorsey
- <john+@cs.cmu.edu>. Portions created by John G. Dorsey are
- Copyright (C) 1999 John G. Dorsey. All Rights Reserved.
-
- Alternatively, the contents of this file may be used under the
- terms of the GNU Public License version 2 (the "GPL"), in which
- case the provisions of the GPL are applicable instead of the
- above. If you wish to allow the use of your version of this file
- only under the terms of the GPL and not to allow others to use
- your version of this file under the MPL, indicate your decision
- by deleting the provisions above and replace them with the notice
- and other provisions required by the GPL. If you do not delete
- the provisions above, a recipient may use your version of this
- file under either the MPL or the GPL.
-
-======================================================================*/
-/*
- * Please see linux/Documentation/arm/SA1100/PCMCIA for more information
- * on the low-level kernel interface.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/config.h>
-#include <linux/cpufreq.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/notifier.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/system.h>
-
-#include "sa11xx_core.h"
-#include "sa1100.h"
-
-#ifdef DEBUG
-static int pc_debug;
-
-module_param(pc_debug, int, 0644);
-
-#define debug(skt, lvl, fmt, arg...) do { \
- if (pc_debug > (lvl)) \
- printk(KERN_DEBUG "skt%u: %s: " fmt, \
- (skt)->nr, __func__ , ## arg); \
-} while (0)
-
-#else
-#define debug(skt, lvl, fmt, arg...) do { } while (0)
-#endif
-
-#define to_sa1100_socket(x) container_of(x, struct sa1100_pcmcia_socket, socket)
-
-/*
- * sa1100_pcmcia_default_mecr_timing
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- *
- * Calculate MECR clock wait states for given CPU clock
- * speed and command wait state. This function can be over-
- * written by a board specific version.
- *
- * The default is to simply calculate the BS values as specified in
- * the INTEL SA1100 development manual
- * "Expansion Memory (PCMCIA) Configuration Register (MECR)"
- * that's section 10.2.5 in _my_ version of the manual ;)
- */
-static unsigned int
-sa1100_pcmcia_default_mecr_timing(struct sa1100_pcmcia_socket *skt,
- unsigned int cpu_speed,
- unsigned int cmd_time)
-{
- return sa1100_pcmcia_mecr_bs(cmd_time, cpu_speed);
-}
-
-static unsigned short
-calc_speed(unsigned short *spds, int num, unsigned short dflt)
-{
- unsigned short speed = 0;
- int i;
-
- for (i = 0; i < num; i++)
- if (speed < spds[i])
- speed = spds[i];
- if (speed == 0)
- speed = dflt;
-
- return speed;
-}
-
-/* sa1100_pcmcia_set_mecr()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
- *
- * set MECR value for socket <sock> based on this sockets
- * io, mem and attribute space access speed.
- * Call board specific BS value calculation to allow boards
- * to tweak the BS values.
- */
-static int
-sa1100_pcmcia_set_mecr(struct sa1100_pcmcia_socket *skt, unsigned int cpu_clock)
-{
- u32 mecr, old_mecr;
- unsigned long flags;
- unsigned short speed;
- unsigned int bs_io, bs_mem, bs_attr;
-
- speed = calc_speed(skt->spd_io, MAX_IO_WIN, SA1100_PCMCIA_IO_ACCESS);
- bs_io = skt->ops->socket_get_timing(skt, cpu_clock, speed);
-
- speed = calc_speed(skt->spd_mem, MAX_WIN, SA1100_PCMCIA_3V_MEM_ACCESS);
- bs_mem = skt->ops->socket_get_timing(skt, cpu_clock, speed);
-
- speed = calc_speed(skt->spd_attr, MAX_WIN, SA1100_PCMCIA_3V_MEM_ACCESS);
- bs_attr = skt->ops->socket_get_timing(skt, cpu_clock, speed);
-
- local_irq_save(flags);
-
- old_mecr = mecr = MECR;
- MECR_FAST_SET(mecr, skt->nr, 0);
- MECR_BSIO_SET(mecr, skt->nr, bs_io);
- MECR_BSA_SET(mecr, skt->nr, bs_attr);
- MECR_BSM_SET(mecr, skt->nr, bs_mem);
- if (old_mecr != mecr)
- MECR = mecr;
-
- local_irq_restore(flags);
-
- debug(skt, 2, "FAST %X BSM %X BSA %X BSIO %X\n",
- MECR_FAST_GET(mecr, skt->nr),
- MECR_BSM_GET(mecr, skt->nr), MECR_BSA_GET(mecr, skt->nr),
- MECR_BSIO_GET(mecr, skt->nr));
-
- return 0;
-}
-
-static unsigned int sa1100_pcmcia_skt_state(struct sa1100_pcmcia_socket *skt)
-{
- struct pcmcia_state state;
- unsigned int stat;
-
- memset(&state, 0, sizeof(struct pcmcia_state));
-
- skt->ops->socket_state(skt, &state);
-
- stat = state.detect ? SS_DETECT : 0;
- stat |= state.ready ? SS_READY : 0;
- stat |= state.wrprot ? SS_WRPROT : 0;
- stat |= state.vs_3v ? SS_3VCARD : 0;
- stat |= state.vs_Xv ? SS_XVCARD : 0;
-
- /* The power status of individual sockets is not available
- * explicitly from the hardware, so we just remember the state
- * and regurgitate it upon request:
- */
- stat |= skt->cs_state.Vcc ? SS_POWERON : 0;
-
- if (skt->cs_state.flags & SS_IOCARD)
- stat |= state.bvd1 ? SS_STSCHG : 0;
- else {
- if (state.bvd1 == 0)
- stat |= SS_BATDEAD;
- else if (state.bvd2 == 0)
- stat |= SS_BATWARN;
- }
- return stat;
-}
-
-/*
- * sa1100_pcmcia_config_skt
- * ^^^^^^^^^^^^^^^^^^^^^^^^
- *
- * Convert PCMCIA socket state to our socket configure structure.
- */
-static int
-sa1100_pcmcia_config_skt(struct sa1100_pcmcia_socket *skt, socket_state_t *state)
-{
- int ret;
-
- ret = skt->ops->configure_socket(skt, state);
- if (ret == 0) {
- /*
- * This really needs a better solution. The IRQ
- * may or may not be claimed by the driver.
- */
- if (skt->irq_state != 1 && state->io_irq) {
- skt->irq_state = 1;
- set_irq_type(skt->irq, IRQT_FALLING);
- } else if (skt->irq_state == 1 && state->io_irq == 0) {
- skt->irq_state = 0;
- set_irq_type(skt->irq, IRQT_NOEDGE);
- }
-
- skt->cs_state = *state;
- }
-
- if (ret < 0)
- printk(KERN_ERR "sa1100_pcmcia: unable to configure "
- "socket %d\n", skt->nr);
-
- return ret;
-}
-
-/* sa1100_pcmcia_sock_init()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^
- *
- * (Re-)Initialise the socket, turning on status interrupts
- * and PCMCIA bus. This must wait for power to stabilise
- * so that the card status signals report correctly.
- *
- * Returns: 0
- */
-static int sa1100_pcmcia_sock_init(struct pcmcia_socket *sock)
-{
- struct sa1100_pcmcia_socket *skt = to_sa1100_socket(sock);
-
- debug(skt, 2, "initializing socket\n");
-
- skt->ops->socket_init(skt);
- return 0;
-}
-
-
-/*
- * sa1100_pcmcia_suspend()
- * ^^^^^^^^^^^^^^^^^^^^^^^
- *
- * Remove power on the socket, disable IRQs from the card.
- * Turn off status interrupts, and disable the PCMCIA bus.
- *
- * Returns: 0
- */
-static int sa1100_pcmcia_suspend(struct pcmcia_socket *sock)
-{
- struct sa1100_pcmcia_socket *skt = to_sa1100_socket(sock);
- int ret;
-
- debug(skt, 2, "suspending socket\n");
-
- ret = sa1100_pcmcia_config_skt(skt, &dead_socket);
- if (ret == 0)
- skt->ops->socket_suspend(skt);
-
- return ret;
-}
-
-static spinlock_t status_lock = SPIN_LOCK_UNLOCKED;
-
-/* sa1100_check_status()
- * ^^^^^^^^^^^^^^^^^^^^^
- */
-static void sa1100_check_status(struct sa1100_pcmcia_socket *skt)
-{
- unsigned int events;
-
- debug(skt, 4, "entering PCMCIA monitoring thread\n");
-
- do {
- unsigned int status;
- unsigned long flags;
-
- status = sa1100_pcmcia_skt_state(skt);
-
- spin_lock_irqsave(&status_lock, flags);
- events = (status ^ skt->status) & skt->cs_state.csc_mask;
- skt->status = status;
- spin_unlock_irqrestore(&status_lock, flags);
-
- debug(skt, 4, "events: %s%s%s%s%s%s\n",
- events == 0 ? "<NONE>" : "",
- events & SS_DETECT ? "DETECT " : "",
- events & SS_READY ? "READY " : "",
- events & SS_BATDEAD ? "BATDEAD " : "",
- events & SS_BATWARN ? "BATWARN " : "",
- events & SS_STSCHG ? "STSCHG " : "");
-
- if (events)
- pcmcia_parse_events(&skt->socket, events);
- } while (events);
-}
-
-/* sa1100_pcmcia_poll_event()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^
- * Let's poll for events in addition to IRQs since IRQ only is unreliable...
- */
-static void sa1100_pcmcia_poll_event(unsigned long dummy)
-{
- struct sa1100_pcmcia_socket *skt = (struct sa1100_pcmcia_socket *)dummy;
- debug(skt, 4, "polling for events\n");
-
- mod_timer(&skt->poll_timer, jiffies + SA1100_PCMCIA_POLL_PERIOD);
-
- sa1100_check_status(skt);
-}
-
-
-/* sa1100_pcmcia_interrupt()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^
- * Service routine for socket driver interrupts (requested by the
- * low-level PCMCIA init() operation via sa1100_pcmcia_thread()).
- * The actual interrupt-servicing work is performed by
- * sa1100_pcmcia_thread(), largely because the Card Services event-
- * handling code performs scheduling operations which cannot be
- * executed from within an interrupt context.
- */
-static irqreturn_t sa1100_pcmcia_interrupt(int irq, void *dev, struct pt_regs *regs)
-{
- struct sa1100_pcmcia_socket *skt = dev;
-
- debug(skt, 3, "servicing IRQ %d\n", irq);
-
- sa1100_check_status(skt);
-
- return IRQ_HANDLED;
-}
-
-
-/* sa1100_pcmcia_get_status()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^
- * Implements the get_status() operation for the in-kernel PCMCIA
- * service (formerly SS_GetStatus in Card Services). Essentially just
- * fills in bits in `status' according to internal driver state or
- * the value of the voltage detect chipselect register.
- *
- * As a debugging note, during card startup, the PCMCIA core issues
- * three set_socket() commands in a row the first with RESET deasserted,
- * the second with RESET asserted, and the last with RESET deasserted
- * again. Following the third set_socket(), a get_status() command will
- * be issued. The kernel is looking for the SS_READY flag (see
- * setup_socket(), reset_socket(), and unreset_socket() in cs.c).
- *
- * Returns: 0
- */
-static int
-sa1100_pcmcia_get_status(struct pcmcia_socket *sock, unsigned int *status)
-{
- struct sa1100_pcmcia_socket *skt = to_sa1100_socket(sock);
-
- skt->status = sa1100_pcmcia_skt_state(skt);
- *status = skt->status;
-
- return 0;
-}
-
-
-/* sa1100_pcmcia_get_socket()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^
- * Implements the get_socket() operation for the in-kernel PCMCIA
- * service (formerly SS_GetSocket in Card Services). Not a very
- * exciting routine.
- *
- * Returns: 0
- */
-static int
-sa1100_pcmcia_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
-{
- struct sa1100_pcmcia_socket *skt = to_sa1100_socket(sock);
-
- debug(skt, 2, "\n");
-
- *state = skt->cs_state;
-
- return 0;
-}
-
-/* sa1100_pcmcia_set_socket()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^
- * Implements the set_socket() operation for the in-kernel PCMCIA
- * service (formerly SS_SetSocket in Card Services). We more or
- * less punt all of this work and let the kernel handle the details
- * of power configuration, reset, &c. We also record the value of
- * `state' in order to regurgitate it to the PCMCIA core later.
- *
- * Returns: 0
- */
-static int
-sa1100_pcmcia_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
-{
- struct sa1100_pcmcia_socket *skt = to_sa1100_socket(sock);
-
- debug(skt, 2, "mask: %s%s%s%s%s%sflags: %s%s%s%s%s%sVcc %d Vpp %d irq %d\n",
- (state->csc_mask==0)?"<NONE> ":"",
- (state->csc_mask&SS_DETECT)?"DETECT ":"",
- (state->csc_mask&SS_READY)?"READY ":"",
- (state->csc_mask&SS_BATDEAD)?"BATDEAD ":"",
- (state->csc_mask&SS_BATWARN)?"BATWARN ":"",
- (state->csc_mask&SS_STSCHG)?"STSCHG ":"",
- (state->flags==0)?"<NONE> ":"",
- (state->flags&SS_PWR_AUTO)?"PWR_AUTO ":"",
- (state->flags&SS_IOCARD)?"IOCARD ":"",
- (state->flags&SS_RESET)?"RESET ":"",
- (state->flags&SS_SPKR_ENA)?"SPKR_ENA ":"",
- (state->flags&SS_OUTPUT_ENA)?"OUTPUT_ENA ":"",
- state->Vcc, state->Vpp, state->io_irq);
-
- return sa1100_pcmcia_config_skt(skt, state);
-} /* sa1100_pcmcia_set_socket() */
-
-
-/* sa1100_pcmcia_set_io_map()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^
- * Implements the set_io_map() operation for the in-kernel PCMCIA
- * service (formerly SS_SetIOMap in Card Services). We configure
- * the map speed as requested, but override the address ranges
- * supplied by Card Services.
- *
- * Returns: 0 on success, -1 on error
- */
-static int
-sa1100_pcmcia_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *map)
-{
- struct sa1100_pcmcia_socket *skt = to_sa1100_socket(sock);
- unsigned short speed = map->speed;
-
- debug(skt, 2, "map %u speed %u start 0x%08x stop 0x%08x\n",
- map->map, map->speed, map->start, map->stop);
- debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
- (map->flags==0)?"<NONE>":"",
- (map->flags&MAP_ACTIVE)?"ACTIVE ":"",
- (map->flags&MAP_16BIT)?"16BIT ":"",
- (map->flags&MAP_AUTOSZ)?"AUTOSZ ":"",
- (map->flags&MAP_0WS)?"0WS ":"",
- (map->flags&MAP_WRPROT)?"WRPROT ":"",
- (map->flags&MAP_USE_WAIT)?"USE_WAIT ":"",
- (map->flags&MAP_PREFETCH)?"PREFETCH ":"");
-
- if (map->map >= MAX_IO_WIN) {
- printk(KERN_ERR "%s(): map (%d) out of range\n", __FUNCTION__,
- map->map);
- return -1;
- }
-
- if (map->flags & MAP_ACTIVE) {
- if (speed == 0)
- speed = SA1100_PCMCIA_IO_ACCESS;
- } else {
- speed = 0;
- }
-
- skt->spd_io[map->map] = speed;
- sa1100_pcmcia_set_mecr(skt, cpufreq_get(0));
-
- if (map->stop == 1)
- map->stop = PAGE_SIZE-1;
-
- map->stop -= map->start;
- map->stop += (unsigned long)skt->virt_io;
- map->start = (unsigned long)skt->virt_io;
-
- return 0;
-} /* sa1100_pcmcia_set_io_map() */
-
-
-/* sa1100_pcmcia_set_mem_map()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
- * Implements the set_mem_map() operation for the in-kernel PCMCIA
- * service (formerly SS_SetMemMap in Card Services). We configure
- * the map speed as requested, but override the address ranges
- * supplied by Card Services.
- *
- * Returns: 0 on success, -1 on error
- */
-static int
-sa1100_pcmcia_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *map)
-{
- struct sa1100_pcmcia_socket *skt = to_sa1100_socket(sock);
- struct resource *res;
- unsigned short speed = map->speed;
-
- debug(skt, 2, "map %u speed %u card_start %08x\n",
- map->map, map->speed, map->card_start);
- debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
- (map->flags==0)?"<NONE>":"",
- (map->flags&MAP_ACTIVE)?"ACTIVE ":"",
- (map->flags&MAP_16BIT)?"16BIT ":"",
- (map->flags&MAP_AUTOSZ)?"AUTOSZ ":"",
- (map->flags&MAP_0WS)?"0WS ":"",
- (map->flags&MAP_WRPROT)?"WRPROT ":"",
- (map->flags&MAP_ATTRIB)?"ATTRIB ":"",
- (map->flags&MAP_USE_WAIT)?"USE_WAIT ":"");
-
- if (map->map >= MAX_WIN)
- return -EINVAL;
-
- if (map->flags & MAP_ACTIVE) {
- if (speed == 0)
- speed = 300;
- } else {
- speed = 0;
- }
-
- if (map->flags & MAP_ATTRIB) {
- res = &skt->res_attr;
- skt->spd_attr[map->map] = speed;
- skt->spd_mem[map->map] = 0;
- } else {
- res = &skt->res_mem;
- skt->spd_attr[map->map] = 0;
- skt->spd_mem[map->map] = speed;
- }
-
- sa1100_pcmcia_set_mecr(skt, cpufreq_get(0));
-
- map->sys_stop -= map->sys_start;
- map->sys_stop += res->start + map->card_start;
- map->sys_start = res->start + map->card_start;
-
- return 0;
-}
-
-struct bittbl {
- unsigned int mask;
- const char *name;
-};
-
-static struct bittbl status_bits[] = {
- { SS_WRPROT, "SS_WRPROT" },
- { SS_BATDEAD, "SS_BATDEAD" },
- { SS_BATWARN, "SS_BATWARN" },
- { SS_READY, "SS_READY" },
- { SS_DETECT, "SS_DETECT" },
- { SS_POWERON, "SS_POWERON" },
- { SS_STSCHG, "SS_STSCHG" },
- { SS_3VCARD, "SS_3VCARD" },
- { SS_XVCARD, "SS_XVCARD" },
-};
-
-static struct bittbl conf_bits[] = {
- { SS_PWR_AUTO, "SS_PWR_AUTO" },
- { SS_IOCARD, "SS_IOCARD" },
- { SS_RESET, "SS_RESET" },
- { SS_DMA_MODE, "SS_DMA_MODE" },
- { SS_SPKR_ENA, "SS_SPKR_ENA" },
- { SS_OUTPUT_ENA, "SS_OUTPUT_ENA" },
-};
-
-static void
-dump_bits(char **p, const char *prefix, unsigned int val, struct bittbl *bits, int sz)
-{
- char *b = *p;
- int i;
-
- b += sprintf(b, "%-9s:", prefix);
- for (i = 0; i < sz; i++)
- if (val & bits[i].mask)
- b += sprintf(b, " %s", bits[i].name);
- *b++ = '\n';
- *p = b;
-}
-
-/* show_status()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
- * Implements the /sys/class/pcmcia_socket/??/status file.
- *
- * Returns: the number of characters added to the buffer
- */
-static ssize_t show_status(struct class_device *class_dev, char *buf)
-{
- struct sa1100_pcmcia_socket *skt = container_of(class_dev,
- struct sa1100_pcmcia_socket, socket.dev);
- unsigned int clock = cpufreq_get(0);
- unsigned long mecr = MECR;
- char *p = buf;
-
- p+=sprintf(p, "slot : %d\n", skt->nr);
-
- dump_bits(&p, "status", skt->status,
- status_bits, ARRAY_SIZE(status_bits));
- dump_bits(&p, "csc_mask", skt->cs_state.csc_mask,
- status_bits, ARRAY_SIZE(status_bits));
- dump_bits(&p, "cs_flags", skt->cs_state.flags,
- conf_bits, ARRAY_SIZE(conf_bits));
-
- p+=sprintf(p, "Vcc : %d\n", skt->cs_state.Vcc);
- p+=sprintf(p, "Vpp : %d\n", skt->cs_state.Vpp);
- p+=sprintf(p, "IRQ : %d (%d)\n", skt->cs_state.io_irq, skt->irq);
-
- p+=sprintf(p, "I/O : %u (%u)\n",
- calc_speed(skt->spd_io, MAX_IO_WIN, SA1100_PCMCIA_IO_ACCESS),
- sa1100_pcmcia_cmd_time(clock, MECR_BSIO_GET(mecr, skt->nr)));
-
- p+=sprintf(p, "attribute: %u (%u)\n",
- calc_speed(skt->spd_attr, MAX_WIN, SA1100_PCMCIA_3V_MEM_ACCESS),
- sa1100_pcmcia_cmd_time(clock, MECR_BSA_GET(mecr, skt->nr)));
-
- p+=sprintf(p, "common : %u (%u)\n",
- calc_speed(skt->spd_mem, MAX_WIN, SA1100_PCMCIA_3V_MEM_ACCESS),
- sa1100_pcmcia_cmd_time(clock, MECR_BSM_GET(mecr, skt->nr)));
-
- return p-buf;
-}
-static CLASS_DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
-
-
-static struct pccard_operations sa11xx_pcmcia_operations = {
- .init = sa1100_pcmcia_sock_init,
- .suspend = sa1100_pcmcia_suspend,
- .get_status = sa1100_pcmcia_get_status,
- .get_socket = sa1100_pcmcia_get_socket,
- .set_socket = sa1100_pcmcia_set_socket,
- .set_io_map = sa1100_pcmcia_set_io_map,
- .set_mem_map = sa1100_pcmcia_set_mem_map,
-};
-
-int sa11xx_request_irqs(struct sa1100_pcmcia_socket *skt, struct pcmcia_irqs *irqs, int nr)
-{
- int i, res = 0;
-
- for (i = 0; i < nr; i++) {
- if (irqs[i].sock != skt->nr)
- continue;
- res = request_irq(irqs[i].irq, sa1100_pcmcia_interrupt,
- SA_INTERRUPT, irqs[i].str, skt);
- if (res)
- break;
- set_irq_type(irqs[i].irq, IRQT_NOEDGE);
- }
-
- if (res) {
- printk(KERN_ERR "PCMCIA: request for IRQ%d failed (%d)\n",
- irqs[i].irq, res);
-
- while (i--)
- if (irqs[i].sock == skt->nr)
- free_irq(irqs[i].irq, skt);
- }
- return res;
-}
-EXPORT_SYMBOL(sa11xx_request_irqs);
-
-void sa11xx_free_irqs(struct sa1100_pcmcia_socket *skt, struct pcmcia_irqs *irqs, int nr)
-{
- int i;
-
- for (i = 0; i < nr; i++)
- if (irqs[i].sock == skt->nr)
- free_irq(irqs[i].irq, skt);
-}
-EXPORT_SYMBOL(sa11xx_free_irqs);
-
-void sa11xx_disable_irqs(struct sa1100_pcmcia_socket *skt, struct pcmcia_irqs *irqs, int nr)
-{
- int i;
-
- for (i = 0; i < nr; i++)
- if (irqs[i].sock == skt->nr)
- set_irq_type(irqs[i].irq, IRQT_NOEDGE);
-}
-EXPORT_SYMBOL(sa11xx_disable_irqs);
-
-void sa11xx_enable_irqs(struct sa1100_pcmcia_socket *skt, struct pcmcia_irqs *irqs, int nr)
-{
- int i;
-
- for (i = 0; i < nr; i++)
- if (irqs[i].sock == skt->nr) {
- set_irq_type(irqs[i].irq, IRQT_RISING);
- set_irq_type(irqs[i].irq, IRQT_BOTHEDGE);
- }
-}
-EXPORT_SYMBOL(sa11xx_enable_irqs);
-
-static LIST_HEAD(sa1100_sockets);
-static DECLARE_MUTEX(sa1100_sockets_lock);
-
-static const char *skt_names[] = {
- "PCMCIA socket 0",
- "PCMCIA socket 1",
-};
-
-struct skt_dev_info {
- int nskt;
- struct sa1100_pcmcia_socket skt[0];
-};
-
-#define SKT_DEV_INFO_SIZE(n) \
- (sizeof(struct skt_dev_info) + (n)*sizeof(struct sa1100_pcmcia_socket))
-
-int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, int first, int nr)
-{
- struct skt_dev_info *sinfo;
- unsigned int cpu_clock;
- int ret, i;
-
- /*
- * set default MECR calculation if the board specific
- * code did not specify one...
- */
- if (!ops->socket_get_timing)
- ops->socket_get_timing = sa1100_pcmcia_default_mecr_timing;
-
- down(&sa1100_sockets_lock);
-
- sinfo = kmalloc(SKT_DEV_INFO_SIZE(nr), GFP_KERNEL);
- if (!sinfo) {
- ret = -ENOMEM;
- goto out;
- }
-
- memset(sinfo, 0, SKT_DEV_INFO_SIZE(nr));
- sinfo->nskt = nr;
-
- cpu_clock = cpufreq_get(0);
-
- /*
- * Initialise the per-socket structure.
- */
- for (i = 0; i < nr; i++) {
- struct sa1100_pcmcia_socket *skt = &sinfo->skt[i];
-
- skt->socket.ops = &sa11xx_pcmcia_operations;
- skt->socket.owner = ops->owner;
- skt->socket.dev.dev = dev;
-
- init_timer(&skt->poll_timer);
- skt->poll_timer.function = sa1100_pcmcia_poll_event;
- skt->poll_timer.data = (unsigned long)skt;
- skt->poll_timer.expires = jiffies + SA1100_PCMCIA_POLL_PERIOD;
-
- skt->nr = first + i;
- skt->irq = NO_IRQ;
- skt->dev = dev;
- skt->ops = ops;
-
- skt->res_skt.start = _PCMCIA(skt->nr);
- skt->res_skt.end = _PCMCIA(skt->nr) + PCMCIASp - 1;
- skt->res_skt.name = skt_names[skt->nr];
- skt->res_skt.flags = IORESOURCE_MEM;
-
- ret = request_resource(&iomem_resource, &skt->res_skt);
- if (ret)
- goto out_err_1;
-
- skt->res_io.start = _PCMCIAIO(skt->nr);
- skt->res_io.end = _PCMCIAIO(skt->nr) + PCMCIAIOSp - 1;
- skt->res_io.name = "io";
- skt->res_io.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-
- ret = request_resource(&skt->res_skt, &skt->res_io);
- if (ret)
- goto out_err_2;
-
- skt->res_mem.start = _PCMCIAMem(skt->nr);
- skt->res_mem.end = _PCMCIAMem(skt->nr) + PCMCIAMemSp - 1;
- skt->res_mem.name = "memory";
- skt->res_mem.flags = IORESOURCE_MEM;
-
- ret = request_resource(&skt->res_skt, &skt->res_mem);
- if (ret)
- goto out_err_3;
-
- skt->res_attr.start = _PCMCIAAttr(skt->nr);
- skt->res_attr.end = _PCMCIAAttr(skt->nr) + PCMCIAAttrSp - 1;
- skt->res_attr.name = "attribute";
- skt->res_attr.flags = IORESOURCE_MEM;
-
- ret = request_resource(&skt->res_skt, &skt->res_attr);
- if (ret)
- goto out_err_4;
-
- skt->virt_io = ioremap(skt->res_io.start, 0x10000);
- if (skt->virt_io == NULL) {
- ret = -ENOMEM;
- goto out_err_5;
- }
-
- list_add(&skt->node, &sa1100_sockets);
-
- /*
- * We initialize the MECR to default values here, because
- * we are not guaranteed to see a SetIOMap operation at
- * runtime.
- */
- sa1100_pcmcia_set_mecr(skt, cpu_clock);
-
- ret = ops->hw_init(skt);
- if (ret)
- goto out_err_6;
-
- skt->socket.features = SS_CAP_STATIC_MAP|SS_CAP_PCCARD;
- skt->socket.irq_mask = 0;
- skt->socket.map_size = PAGE_SIZE;
- skt->socket.pci_irq = skt->irq;
- skt->socket.io_offset = (unsigned long)skt->virt_io;
-
- skt->status = sa1100_pcmcia_skt_state(skt);
-
- ret = pcmcia_register_socket(&skt->socket);
- if (ret)
- goto out_err_7;
-
- WARN_ON(skt->socket.sock != i);
-
- add_timer(&skt->poll_timer);
-
- class_device_create_file(&skt->socket.dev, &class_device_attr_status);
- }
-
- dev_set_drvdata(dev, sinfo);
- ret = 0;
- goto out;
-
- do {
- struct sa1100_pcmcia_socket *skt = &sinfo->skt[i];
-
- del_timer_sync(&skt->poll_timer);
- pcmcia_unregister_socket(&skt->socket);
-
- out_err_7:
- flush_scheduled_work();
-
- ops->hw_shutdown(skt);
- out_err_6:
- list_del(&skt->node);
- iounmap(skt->virt_io);
- out_err_5:
- release_resource(&skt->res_attr);
- out_err_4:
- release_resource(&skt->res_mem);
- out_err_3:
- release_resource(&skt->res_io);
- out_err_2:
- release_resource(&skt->res_skt);
- out_err_1:
- i--;
- } while (i > 0);
-
- kfree(sinfo);
-
- out:
- up(&sa1100_sockets_lock);
- return ret;
-}
-EXPORT_SYMBOL(sa11xx_drv_pcmcia_probe);
-
-int sa11xx_drv_pcmcia_remove(struct device *dev)
-{
- struct skt_dev_info *sinfo = dev_get_drvdata(dev);
- int i;
-
- dev_set_drvdata(dev, NULL);
-
- down(&sa1100_sockets_lock);
- for (i = 0; i < sinfo->nskt; i++) {
- struct sa1100_pcmcia_socket *skt = &sinfo->skt[i];
-
- del_timer_sync(&skt->poll_timer);
-
- pcmcia_unregister_socket(&skt->socket);
-
- flush_scheduled_work();
-
- skt->ops->hw_shutdown(skt);
-
- sa1100_pcmcia_config_skt(skt, &dead_socket);
-
- list_del(&skt->node);
- iounmap(skt->virt_io);
- skt->virt_io = NULL;
- release_resource(&skt->res_attr);
- release_resource(&skt->res_mem);
- release_resource(&skt->res_io);
- release_resource(&skt->res_skt);
- }
- up(&sa1100_sockets_lock);
-
- kfree(sinfo);
-
- return 0;
-}
-EXPORT_SYMBOL(sa11xx_drv_pcmcia_remove);
-
-#ifdef CONFIG_CPU_FREQ
-
-/* sa1100_pcmcia_update_mecr()
- * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
- * When sa1100_pcmcia_notifier() decides that a MECR adjustment (due
- * to a core clock frequency change) is needed, this routine establishes
- * new BS_xx values consistent with the clock speed `clock'.
- */
-static void sa1100_pcmcia_update_mecr(unsigned int clock)
-{
- struct sa1100_pcmcia_socket *skt;
-
- down(&sa1100_sockets_lock);
- list_for_each_entry(skt, &sa1100_sockets, node)
- sa1100_pcmcia_set_mecr(skt, clock);
- up(&sa1100_sockets_lock);
-}
-
-/* sa1100_pcmcia_notifier()
- * ^^^^^^^^^^^^^^^^^^^^^^^^
- * When changing the processor core clock frequency, it is necessary
- * to adjust the MECR timings accordingly. We've recorded the timings
- * requested by Card Services, so this is just a matter of finding
- * out what our current speed is, and then recomputing the new MECR
- * values.
- *
- * Returns: 0 on success, -1 on error
- */
-static int
-sa1100_pcmcia_notifier(struct notifier_block *nb, unsigned long val,
- void *data)
-{
- struct cpufreq_freqs *freqs = data;
-
- switch (val) {
- case CPUFREQ_PRECHANGE:
- if (freqs->new > freqs->old)
- sa1100_pcmcia_update_mecr(freqs->new);
- break;
-
- case CPUFREQ_POSTCHANGE:
- if (freqs->new < freqs->old)
- sa1100_pcmcia_update_mecr(freqs->new);
- break;
- }
-
- return 0;
-}
-
-static struct notifier_block sa1100_pcmcia_notifier_block = {
- .notifier_call = sa1100_pcmcia_notifier
-};
-
-static int __init sa11xx_pcmcia_init(void)
-{
- int ret;
-
- printk(KERN_INFO "SA11xx PCMCIA\n");
-
- ret = cpufreq_register_notifier(&sa1100_pcmcia_notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
- if (ret < 0)
- printk(KERN_ERR "Unable to register CPU frequency change "
- "notifier (%d)\n", ret);
-
- return ret;
-}
-module_init(sa11xx_pcmcia_init);
-
-static void __exit sa11xx_pcmcia_exit(void)
-{
- cpufreq_unregister_notifier(&sa1100_pcmcia_notifier_block, CPUFREQ_TRANSITION_NOTIFIER);
-}
-
-module_exit(sa11xx_pcmcia_exit);
-#endif
-
-MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
-MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11xx core socket driver");
-MODULE_LICENSE("Dual MPL/GPL");
+++ /dev/null
-/*
- * linux/include/asm/arch/pcmcia.h
- *
- * Copyright (C) 2000 John G Dorsey <john+@cs.cmu.edu>
- *
- * This file contains definitions for the low-level SA-1100 kernel PCMCIA
- * interface. Please see linux/Documentation/arm/SA1100/PCMCIA for details.
- */
-#ifndef _ASM_ARCH_PCMCIA
-#define _ASM_ARCH_PCMCIA
-
-/* include the world */
-#include <pcmcia/version.h>
-#include <pcmcia/cs_types.h>
-#include <pcmcia/cs.h>
-#include <pcmcia/ss.h>
-#include <pcmcia/bulkmem.h>
-#include <pcmcia/cistpl.h>
-#include "cs_internal.h"
-
-struct device;
-
-/* Ideally, we'd support up to MAX_SOCK sockets, but the SA-1100 only
- * has support for two. This shows up in lots of hardwired ways, such
- * as the fact that MECR only has enough bits to configure two sockets.
- * Since it's so entrenched in the hardware, limiting the software
- * in this way doesn't seem too terrible.
- */
-#define SA1100_PCMCIA_MAX_SOCK (2)
-
-struct pcmcia_state {
- unsigned detect: 1,
- ready: 1,
- bvd1: 1,
- bvd2: 1,
- wrprot: 1,
- vs_3v: 1,
- vs_Xv: 1;
-};
-
-/*
- * This structure encapsulates per-socket state which we might need to
- * use when responding to a Card Services query of some kind.
- */
-struct sa1100_pcmcia_socket {
- struct pcmcia_socket socket;
-
- /*
- * Info from low level handler
- */
- struct device *dev;
- unsigned int nr;
- unsigned int irq;
-
- /*
- * Core PCMCIA state
- */
- struct pcmcia_low_level *ops;
-
- unsigned int status;
- socket_state_t cs_state;
-
- unsigned short spd_io[MAX_IO_WIN];
- unsigned short spd_mem[MAX_WIN];
- unsigned short spd_attr[MAX_WIN];
-
- struct resource res_skt;
- struct resource res_io;
- struct resource res_mem;
- struct resource res_attr;
- void *virt_io;
-
- unsigned int irq_state;
-
- struct timer_list poll_timer;
- struct list_head node;
-};
-
-struct pcmcia_low_level {
- struct module *owner;
-
- int (*hw_init)(struct sa1100_pcmcia_socket *);
- void (*hw_shutdown)(struct sa1100_pcmcia_socket *);
-
- void (*socket_state)(struct sa1100_pcmcia_socket *, struct pcmcia_state *);
- int (*configure_socket)(struct sa1100_pcmcia_socket *, const socket_state_t *);
-
- /*
- * Enable card status IRQs on (re-)initialisation. This can
- * be called at initialisation, power management event, or
- * pcmcia event.
- */
- void (*socket_init)(struct sa1100_pcmcia_socket *);
-
- /*
- * Disable card status IRQs and PCMCIA bus on suspend.
- */
- void (*socket_suspend)(struct sa1100_pcmcia_socket *);
-
- /*
- * Calculate MECR timing clock wait states
- */
- unsigned int (*socket_get_timing)(struct sa1100_pcmcia_socket *,
- unsigned int cpu_speed, unsigned int cmd_time);
-};
-
-struct pcmcia_irqs {
- int sock;
- int irq;
- const char *str;
-};
-
-int sa11xx_request_irqs(struct sa1100_pcmcia_socket *skt, struct pcmcia_irqs *irqs, int nr);
-void sa11xx_free_irqs(struct sa1100_pcmcia_socket *skt, struct pcmcia_irqs *irqs, int nr);
-void sa11xx_disable_irqs(struct sa1100_pcmcia_socket *skt, struct pcmcia_irqs *irqs, int nr);
-void sa11xx_enable_irqs(struct sa1100_pcmcia_socket *skt, struct pcmcia_irqs *irqs, int nr);
-
-extern int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, int first, int nr);
-extern int sa11xx_drv_pcmcia_remove(struct device *dev);
-
-#endif
+++ /dev/null
-/*
- * socket_sysfs.c -- most of socket-related sysfs output
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * (C) 2003 - 2004 Dominik Brodowski
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/config.h>
-#include <linux/string.h>
-#include <linux/major.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/timer.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/pm.h>
-#include <linux/pci.h>
-#include <linux/device.h>
-#include <linux/suspend.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-
-#define IN_CARD_SERVICES
-#include <pcmcia/version.h>
-#include <pcmcia/cs_types.h>
-#include <pcmcia/ss.h>
-#include <pcmcia/cs.h>
-#include <pcmcia/bulkmem.h>
-#include <pcmcia/cistpl.h>
-#include <pcmcia/cisreg.h>
-#include <pcmcia/ds.h>
-#include "cs_internal.h"
-
-#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
-
-static ssize_t pccard_show_type(struct class_device *dev, char *buf)
-{
- int val;
- struct pcmcia_socket *s = to_socket(dev);
-
- if (!(s->state & SOCKET_PRESENT))
- return -ENODEV;
- s->ops->get_status(s, &val);
- if (val & SS_CARDBUS)
- return sprintf(buf, "32-bit\n");
- if (val & SS_DETECT)
- return sprintf(buf, "16-bit\n");
- return sprintf(buf, "invalid\n");
-}
-static CLASS_DEVICE_ATTR(card_type, 0400, pccard_show_type, NULL);
-
-static ssize_t pccard_show_voltage(struct class_device *dev, char *buf)
-{
- int val;
- struct pcmcia_socket *s = to_socket(dev);
-
- if (!(s->state & SOCKET_PRESENT))
- return -ENODEV;
- s->ops->get_status(s, &val);
- if (val & SS_3VCARD)
- return sprintf(buf, "3.3V\n");
- if (val & SS_XVCARD)
- return sprintf(buf, "X.XV\n");
- return sprintf(buf, "5.0V\n");
-}
-static CLASS_DEVICE_ATTR(card_voltage, 0400, pccard_show_voltage, NULL);
-
-static ssize_t pccard_show_vpp(struct class_device *dev, char *buf)
-{
- struct pcmcia_socket *s = to_socket(dev);
- if (!(s->state & SOCKET_PRESENT))
- return -ENODEV;
- return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
-}
-static CLASS_DEVICE_ATTR(card_vpp, 0400, pccard_show_vpp, NULL);
-
-static ssize_t pccard_show_vcc(struct class_device *dev, char *buf)
-{
- struct pcmcia_socket *s = to_socket(dev);
- if (!(s->state & SOCKET_PRESENT))
- return -ENODEV;
- return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
-}
-static CLASS_DEVICE_ATTR(card_vcc, 0400, pccard_show_vcc, NULL);
-
-
-static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, size_t count)
-{
- ssize_t ret;
- struct pcmcia_socket *s = to_socket(dev);
-
- if (!count)
- return -EINVAL;
-
- ret = pcmcia_insert_card(s);
-
- return ret ? ret : count;
-}
-static CLASS_DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
-
-static ssize_t pccard_store_eject(struct class_device *dev, const char *buf, size_t count)
-{
- ssize_t ret;
- struct pcmcia_socket *s = to_socket(dev);
-
- if (!count)
- return -EINVAL;
-
- ret = pcmcia_eject_card(s);
-
- return ret ? ret : count;
-}
-static CLASS_DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
-
-
-static struct class_device_attribute *pccard_socket_attributes[] = {
- &class_device_attr_card_type,
- &class_device_attr_card_voltage,
- &class_device_attr_card_vpp,
- &class_device_attr_card_vcc,
- &class_device_attr_card_insert,
- &class_device_attr_card_eject,
- NULL,
-};
-
-static int __devinit pccard_sysfs_add_socket(struct class_device *class_dev)
-{
- struct class_device_attribute **attr;
- int ret = 0;
-
- for (attr = pccard_socket_attributes; *attr; attr++) {
- ret = class_device_create_file(class_dev, *attr);
- if (ret)
- break;
- }
-
- return ret;
-}
-
-static void __devexit pccard_sysfs_remove_socket(struct class_device *class_dev)
-{
- struct class_device_attribute **attr;
-
- for (attr = pccard_socket_attributes; *attr; attr++)
- class_device_remove_file(class_dev, *attr);
-}
-
-struct class_interface pccard_sysfs_interface = {
- .class = &pcmcia_socket_class,
- .add = &pccard_sysfs_add_socket,
- .remove = __devexit_p(&pccard_sysfs_remove_socket),
-};
+++ /dev/null
-/*
- *
- * linux/drivers/s390/net/ctcdbug.c ($Revision: 1.1 $)
- *
- * Linux on zSeries OSA Express and HiperSockets support
- *
- * Copyright 2000,2003 IBM Corporation
- *
- * Author(s): Original Code written by
- * Peter Tiedemann (ptiedem@de.ibm.com)
- *
- * $Revision: 1.1 $ $Date: 2004/07/02 16:31:22 $
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include "ctcdbug.h"
-
-/**
- * Debug Facility Stuff
- */
-debug_info_t *dbf_setup = NULL;
-debug_info_t *dbf_data = NULL;
-debug_info_t *dbf_trace = NULL;
-
-DEFINE_PER_CPU(char[256], dbf_txt_buf);
-
-void
-unregister_dbf_views(void)
-{
- if (dbf_setup)
- debug_unregister(dbf_setup);
- if (dbf_data)
- debug_unregister(dbf_data);
- if (dbf_trace)
- debug_unregister(dbf_trace);
-}
-int
-register_dbf_views(void)
-{
- dbf_setup = debug_register(CTC_DBF_SETUP_NAME,
- CTC_DBF_SETUP_INDEX,
- CTC_DBF_SETUP_NR_AREAS,
- CTC_DBF_SETUP_LEN);
- dbf_data = debug_register(CTC_DBF_DATA_NAME,
- CTC_DBF_DATA_INDEX,
- CTC_DBF_DATA_NR_AREAS,
- CTC_DBF_DATA_LEN);
- dbf_trace = debug_register(CTC_DBF_TRACE_NAME,
- CTC_DBF_TRACE_INDEX,
- CTC_DBF_TRACE_NR_AREAS,
- CTC_DBF_TRACE_LEN);
-
- if ((dbf_setup == NULL) || (dbf_data == NULL) ||
- (dbf_trace == NULL)) {
- unregister_dbf_views();
- return -ENOMEM;
- }
- debug_register_view(dbf_setup, &debug_hex_ascii_view);
- debug_set_level(dbf_setup, CTC_DBF_SETUP_LEVEL);
-
- debug_register_view(dbf_data, &debug_hex_ascii_view);
- debug_set_level(dbf_data, CTC_DBF_DATA_LEVEL);
-
- debug_register_view(dbf_trace, &debug_hex_ascii_view);
- debug_set_level(dbf_trace, CTC_DBF_TRACE_LEVEL);
-
- return 0;
-}
-
-
+++ /dev/null
-/*
- *
- * linux/drivers/s390/net/ctcdbug.h ($Revision: 1.1 $)
- *
- * Linux on zSeries OSA Express and HiperSockets support
- *
- * Copyright 2000,2003 IBM Corporation
- *
- * Author(s): Original Code written by
- * Peter Tiedemann (ptiedem@de.ibm.com)
- *
- * $Revision: 1.1 $ $Date: 2004/07/02 16:31:22 $
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
-#include <asm/debug.h>
-/**
- * Debug Facility stuff
- */
-#define CTC_DBF_SETUP_NAME "ctc_setup"
-#define CTC_DBF_SETUP_LEN 16
-#define CTC_DBF_SETUP_INDEX 3
-#define CTC_DBF_SETUP_NR_AREAS 1
-#define CTC_DBF_SETUP_LEVEL 3
-
-#define CTC_DBF_DATA_NAME "ctc_data"
-#define CTC_DBF_DATA_LEN 128
-#define CTC_DBF_DATA_INDEX 3
-#define CTC_DBF_DATA_NR_AREAS 1
-#define CTC_DBF_DATA_LEVEL 2
-
-#define CTC_DBF_TRACE_NAME "ctc_trace"
-#define CTC_DBF_TRACE_LEN 16
-#define CTC_DBF_TRACE_INDEX 2
-#define CTC_DBF_TRACE_NR_AREAS 2
-#define CTC_DBF_TRACE_LEVEL 3
-
-#define DBF_TEXT(name,level,text) \
- do { \
- debug_text_event(dbf_##name,level,text); \
- } while (0)
-
-#define DBF_HEX(name,level,addr,len) \
- do { \
- debug_event(dbf_##name,level,(void*)(addr),len); \
- } while (0)
-
-extern DEFINE_PER_CPU(char[256], dbf_txt_buf);
-extern debug_info_t *dbf_setup;
-extern debug_info_t *dbf_data;
-extern debug_info_t *dbf_trace;
-
-
-#define DBF_TEXT_(name,level,text...) \
- do { \
- char* dbf_txt_buf = get_cpu_var(dbf_txt_buf); \
- sprintf(dbf_txt_buf, text); \
- debug_text_event(dbf_##name,level,dbf_txt_buf); \
- put_cpu_var(dbf_txt_buf); \
- } while (0)
-
-#define DBF_SPRINTF(name,level,text...) \
- do { \
- debug_sprintf_event(dbf_trace, level, ##text ); \
- debug_sprintf_event(dbf_trace, level, text ); \
- } while (0)
-
-
-int register_dbf_views(void);
-
-void unregister_dbf_views(void);
-
-/**
- * some more debug stuff
- */
-
-#define HEXDUMP16(importance,header,ptr) \
-PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
- "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
- *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \
- *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \
- *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \
- *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \
- *(((char*)ptr)+12),*(((char*)ptr)+13), \
- *(((char*)ptr)+14),*(((char*)ptr)+15)); \
-PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
- "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
- *(((char*)ptr)+16),*(((char*)ptr)+17), \
- *(((char*)ptr)+18),*(((char*)ptr)+19), \
- *(((char*)ptr)+20),*(((char*)ptr)+21), \
- *(((char*)ptr)+22),*(((char*)ptr)+23), \
- *(((char*)ptr)+24),*(((char*)ptr)+25), \
- *(((char*)ptr)+26),*(((char*)ptr)+27), \
- *(((char*)ptr)+28),*(((char*)ptr)+29), \
- *(((char*)ptr)+30),*(((char*)ptr)+31));
-
-static inline void
-hex_dump(unsigned char *buf, size_t len)
-{
- size_t i;
-
- for (i = 0; i < len; i++) {
- if (i && !(i % 16))
- printk("\n");
- printk("%02x ", *(buf + i));
- }
- printk("\n");
-}
-
+++ /dev/null
-/*
- 3w-9xxx.c -- 3ware 9000 Storage Controller device driver for Linux.
-
- Written By: Adam Radford <linuxraid@amcc.com>
-
- Copyright (C) 2004 Applied Micro Circuits Corporation.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 of the License.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- NO WARRANTY
- THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
- CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
- LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
- MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
- solely responsible for determining the appropriateness of using and
- distributing the Program and assumes all risks associated with its
- exercise of rights under this Agreement, including but not limited to
- the risks and costs of program errors, damage to or loss of data,
- programs or equipment, and unavailability or interruption of operations.
-
- DISCLAIMER OF LIABILITY
- NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
- DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
- HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Bugs/Comments/Suggestions should be mailed to:
- linuxraid@amcc.com
-
- For more information, goto:
- http://www.amcc.com
-
- Note: This version of the driver does not contain a bundled firmware
- image.
-
- History
- -------
- 2.26.02.000 - Driver cleanup for kernel submission.
- 2.26.02.001 - Replace schedule_timeout() calls with msleep().
-*/
-
-#include <linux/module.h>
-#include <linux/reboot.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/moduleparam.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/time.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <scsi/scsi.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_tcq.h>
-#include <scsi/scsi_cmnd.h>
-#include "3w-9xxx.h"
-
-/* Globals */
-static const char *twa_driver_version="2.26.02.001";
-static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT];
-static unsigned int twa_device_extension_count;
-static int twa_major = -1;
-extern struct timezone sys_tz;
-
-/* Module parameters */
-MODULE_AUTHOR ("AMCC");
-MODULE_DESCRIPTION ("3ware 9000 Storage Controller Linux Driver");
-MODULE_LICENSE("GPL");
-
-/* Function prototypes */
-static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header);
-static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id);
-static char *twa_aen_severity_lookup(unsigned char severity_code);
-static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id);
-static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
-static int twa_chrdev_open(struct inode *inode, struct file *file);
-static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host);
-static void twa_free_request_id(TW_Device_Extension *tw_dev,int request_id);
-static void twa_get_request_id(TW_Device_Extension *tw_dev, int *request_id);
-static int twa_initconnection(TW_Device_Extension *tw_dev, int message_credits,
- u32 set_features, unsigned short current_fw_srl,
- unsigned short current_fw_arch_id,
- unsigned short current_fw_branch,
- unsigned short current_fw_build,
- unsigned short *fw_on_ctlr_srl,
- unsigned short *fw_on_ctlr_arch_id,
- unsigned short *fw_on_ctlr_branch,
- unsigned short *fw_on_ctlr_build,
- u32 *init_connect_result);
-static void twa_load_sgl(TW_Command_Full *full_command_packet, int request_id, dma_addr_t dma_handle, int length);
-static int twa_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds);
-static int twa_poll_status_gone(TW_Device_Extension *tw_dev, u32 flag, int seconds);
-static int twa_post_command_packet(TW_Device_Extension *tw_dev, int request_id, char internal);
-static int twa_reset_device_extension(TW_Device_Extension *tw_dev);
-static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset);
-static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Apache *sglistarg);
-static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int request_id);
-static char *twa_string_lookup(twa_message_type *table, unsigned int aen_code);
-static void twa_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id);
-
-/* Functions */
-
-/* Show some statistics about the card */
-static ssize_t twa_show_stats(struct class_device *class_dev, char *buf)
-{
- struct Scsi_Host *host = class_to_shost(class_dev);
- TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
- unsigned long flags = 0;
- ssize_t len;
-
- spin_lock_irqsave(tw_dev->host->host_lock, flags);
- len = snprintf(buf, PAGE_SIZE, "Driver version: %s\n"
- "Current commands posted: %4d\n"
- "Max commands posted: %4d\n"
- "Current pending commands: %4d\n"
- "Max pending commands: %4d\n"
- "Last sgl length: %4d\n"
- "Max sgl length: %4d\n"
- "Last sector count: %4d\n"
- "Max sector count: %4d\n"
- "SCSI Host Resets: %4d\n"
- "SCSI Aborts/Timeouts: %4d\n"
- "AEN's: %4d\n",
- twa_driver_version,
- tw_dev->posted_request_count,
- tw_dev->max_posted_request_count,
- tw_dev->pending_request_count,
- tw_dev->max_pending_request_count,
- tw_dev->sgl_entries,
- tw_dev->max_sgl_entries,
- tw_dev->sector_count,
- tw_dev->max_sector_count,
- tw_dev->num_resets,
- tw_dev->num_aborts,
- tw_dev->aen_count);
- spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
- return len;
-} /* End twa_show_stats() */
-
-/* This function will set a devices queue depth */
-static ssize_t twa_store_queue_depth(struct device *dev, const char *buf, size_t count)
-{
- int queue_depth;
- struct scsi_device *sdev = to_scsi_device(dev);
-
- queue_depth = simple_strtoul(buf, NULL, 0);
- if (queue_depth > TW_Q_LENGTH-2)
- return -EINVAL;
- scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
-
- return count;
-} /* End twa_store_queue_depth() */
-
-/* Create sysfs 'queue_depth' entry */
-static struct device_attribute twa_queue_depth_attr = {
- .attr = {
- .name = "queue_depth",
- .mode = S_IRUSR | S_IWUSR,
- },
- .store = twa_store_queue_depth
-};
-
-/* Device attributes initializer */
-static struct device_attribute *twa_dev_attrs[] = {
- &twa_queue_depth_attr,
- NULL,
-};
-
-/* Create sysfs 'stats' entry */
-static struct class_device_attribute twa_host_stats_attr = {
- .attr = {
- .name = "stats",
- .mode = S_IRUGO,
- },
- .show = twa_show_stats
-};
-
-/* Host attributes initializer */
-static struct class_device_attribute *twa_host_attrs[] = {
- &twa_host_stats_attr,
- NULL,
-};
-
-/* File operations struct for character device */
-static struct file_operations twa_fops = {
- .owner = THIS_MODULE,
- .ioctl = twa_chrdev_ioctl,
- .open = twa_chrdev_open,
- .release = NULL
-};
-
-/* This function will complete an aen request from the isr */
-static int twa_aen_complete(TW_Device_Extension *tw_dev, int request_id)
-{
- TW_Command_Full *full_command_packet;
- TW_Command *command_packet;
- TW_Command_Apache_Header *header;
- unsigned short aen;
- int retval = 1;
-
- header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id];
- tw_dev->posted_request_count--;
- aen = header->status_block.error;
- full_command_packet = tw_dev->command_packet_virt[request_id];
- command_packet = &full_command_packet->command.oldcommand;
-
- /* First check for internal completion of set param for time sync */
- if (TW_OP_OUT(command_packet->opcode__sgloffset) == TW_OP_SET_PARAM) {
- /* Keep reading the queue in case there are more aen's */
- if (twa_aen_read_queue(tw_dev, request_id))
- goto out2;
- else {
- retval = 0;
- goto out;
- }
- }
-
- switch (aen) {
- case TW_AEN_QUEUE_EMPTY:
- /* Quit reading the queue if this is the last one */
- break;
- case TW_AEN_SYNC_TIME_WITH_HOST:
- twa_aen_sync_time(tw_dev, request_id);
- retval = 0;
- goto out;
- default:
- twa_aen_queue_event(tw_dev, header);
-
- /* If there are more aen's, keep reading the queue */
- if (twa_aen_read_queue(tw_dev, request_id))
- goto out2;
- else {
- retval = 0;
- goto out;
- }
- }
- retval = 0;
-out2:
- tw_dev->state[request_id] = TW_S_COMPLETED;
- twa_free_request_id(tw_dev, request_id);
- clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags);
-out:
- return retval;
-} /* End twa_aen_complete() */
-
-/* This function will drain aen queue */
-static int twa_aen_drain_queue(TW_Device_Extension *tw_dev, int no_check_reset)
-{
- int request_id = 0;
- char cdb[TW_MAX_CDB_LEN];
- TW_SG_Apache sglist[1];
- int finished = 0, count = 0;
- TW_Command_Full *full_command_packet;
- TW_Command_Apache_Header *header;
- unsigned short aen;
- int first_reset = 0, queue = 0, retval = 1;
-
- if (no_check_reset)
- first_reset = 0;
- else
- first_reset = 1;
-
- full_command_packet = tw_dev->command_packet_virt[request_id];
- memset(full_command_packet, 0, sizeof(TW_Command_Full));
-
- /* Initialize cdb */
- memset(&cdb, 0, TW_MAX_CDB_LEN);
- cdb[0] = REQUEST_SENSE; /* opcode */
- cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */
-
- /* Initialize sglist */
- memset(&sglist, 0, sizeof(TW_SG_Apache));
- sglist[0].length = TW_SECTOR_SIZE;
- sglist[0].address = tw_dev->generic_buffer_phys[request_id];
-
- if (sglist[0].address & TW_ALIGNMENT_9000_SGL) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1, "Found unaligned address during AEN drain");
- goto out;
- }
-
- /* Mark internal command */
- tw_dev->srb[request_id] = NULL;
-
- do {
- /* Send command to the board */
- if (twa_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2, "Error posting request sense");
- goto out;
- }
-
- /* Now poll for completion */
- if (twa_poll_response(tw_dev, request_id, 30)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x3, "No valid response while draining AEN queue");
- tw_dev->posted_request_count--;
- goto out;
- }
-
- tw_dev->posted_request_count--;
- header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id];
- aen = header->status_block.error;
- queue = 0;
- count++;
-
- switch (aen) {
- case TW_AEN_QUEUE_EMPTY:
- if (first_reset != 1)
- goto out;
- else
- finished = 1;
- break;
- case TW_AEN_SOFT_RESET:
- if (first_reset == 0)
- first_reset = 1;
- else
- queue = 1;
- break;
- case TW_AEN_SYNC_TIME_WITH_HOST:
- break;
- default:
- queue = 1;
- }
-
- /* Now queue an event info */
- if (queue)
- twa_aen_queue_event(tw_dev, header);
- } while ((finished == 0) && (count < TW_MAX_AEN_DRAIN));
-
- if (count == TW_MAX_AEN_DRAIN)
- goto out;
-
- retval = 0;
-out:
- tw_dev->state[request_id] = TW_S_INITIAL;
- return retval;
-} /* End twa_aen_drain_queue() */
-
-/* This function will queue an event */
-static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header)
-{
- u32 local_time;
- struct timeval time;
- TW_Event *event;
- unsigned short aen;
- char host[16];
-
- tw_dev->aen_count++;
-
- /* Fill out event info */
- event = tw_dev->event_queue[tw_dev->error_index];
-
- /* Check for clobber */
- host[0] = '\0';
- if (tw_dev->host) {
- sprintf(host, " scsi%d:", tw_dev->host->host_no);
- if (event->retrieved == TW_AEN_NOT_RETRIEVED)
- tw_dev->aen_clobber = 1;
- }
-
- aen = header->status_block.error;
- memset(event, 0, sizeof(TW_Event));
-
- event->severity = TW_SEV_OUT(header->status_block.severity__reserved);
- do_gettimeofday(&time);
- local_time = (u32)(time.tv_sec - (sys_tz.tz_minuteswest * 60));
- event->time_stamp_sec = local_time;
- event->aen_code = aen;
- event->retrieved = TW_AEN_NOT_RETRIEVED;
- event->sequence_id = tw_dev->error_sequence_id;
- tw_dev->error_sequence_id++;
-
- header->err_specific_desc[sizeof(header->err_specific_desc) - 1] = '\0';
- event->parameter_len = strlen(header->err_specific_desc);
- memcpy(event->parameter_data, header->err_specific_desc, event->parameter_len);
- if (event->severity != TW_AEN_SEVERITY_DEBUG)
- printk(KERN_WARNING "3w-9xxx:%s AEN: %s (0x%02X:0x%04X): %s:%s.\n",
- host,
- twa_aen_severity_lookup(TW_SEV_OUT(header->status_block.severity__reserved)),
- TW_MESSAGE_SOURCE_CONTROLLER_EVENT, aen,
- twa_string_lookup(twa_aen_table, aen),
- header->err_specific_desc);
- else
- tw_dev->aen_count--;
-
- if ((tw_dev->error_index + 1) == TW_Q_LENGTH)
- tw_dev->event_queue_wrapped = 1;
- tw_dev->error_index = (tw_dev->error_index + 1 ) % TW_Q_LENGTH;
-} /* End twa_aen_queue_event() */
-
-/* This function will read the aen queue from the isr */
-static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id)
-{
- char cdb[TW_MAX_CDB_LEN];
- TW_SG_Apache sglist[1];
- TW_Command_Full *full_command_packet;
- int retval = 1;
-
- full_command_packet = tw_dev->command_packet_virt[request_id];
- memset(full_command_packet, 0, sizeof(TW_Command_Full));
-
- /* Initialize cdb */
- memset(&cdb, 0, TW_MAX_CDB_LEN);
- cdb[0] = REQUEST_SENSE; /* opcode */
- cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */
-
- /* Initialize sglist */
- memset(&sglist, 0, sizeof(TW_SG_Apache));
- sglist[0].length = TW_SECTOR_SIZE;
- sglist[0].address = tw_dev->generic_buffer_phys[request_id];
-
- /* Mark internal command */
- tw_dev->srb[request_id] = NULL;
-
- /* Now post the command packet */
- if (twa_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x4, "Post failed while reading AEN queue");
- goto out;
- }
- retval = 0;
-out:
- return retval;
-} /* End twa_aen_read_queue() */
-
-/* This function will look up an AEN severity string */
-static char *twa_aen_severity_lookup(unsigned char severity_code)
-{
- char *retval = NULL;
-
- if ((severity_code < (unsigned char) TW_AEN_SEVERITY_ERROR) ||
- (severity_code > (unsigned char) TW_AEN_SEVERITY_DEBUG))
- goto out;
-
- retval = twa_aen_severity_table[severity_code];
-out:
- return retval;
-} /* End twa_aen_severity_lookup() */
-
-/* This function will sync firmware time with the host time */
-static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id)
-{
- u32 schedulertime;
- struct timeval utc;
- TW_Command_Full *full_command_packet;
- TW_Command *command_packet;
- TW_Param_Apache *param;
- u32 local_time;
-
- /* Fill out the command packet */
- full_command_packet = tw_dev->command_packet_virt[request_id];
- memset(full_command_packet, 0, sizeof(TW_Command_Full));
- command_packet = &full_command_packet->command.oldcommand;
- command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_SET_PARAM);
- command_packet->request_id = request_id;
- command_packet->byte8_offset.param.sgl[0].address = tw_dev->generic_buffer_phys[request_id];
- command_packet->byte8_offset.param.sgl[0].length = TW_SECTOR_SIZE;
- command_packet->size = TW_COMMAND_SIZE;
- command_packet->byte6_offset.parameter_count = 1;
-
- /* Setup the param */
- param = (TW_Param_Apache *)tw_dev->generic_buffer_virt[request_id];
- memset(param, 0, TW_SECTOR_SIZE);
- param->table_id = TW_TIMEKEEP_TABLE | 0x8000; /* Controller time keep table */
- param->parameter_id = 0x3; /* SchedulerTime */
- param->parameter_size_bytes = 4;
-
- /* Convert system time in UTC to local time seconds since last
- Sunday 12:00AM */
- do_gettimeofday(&utc);
- local_time = (u32)(utc.tv_sec - (sys_tz.tz_minuteswest * 60));
- schedulertime = local_time - (3 * 86400);
- schedulertime = schedulertime % 604800;
-
- memcpy(param->data, &schedulertime, sizeof(u32));
-
- /* Mark internal command */
- tw_dev->srb[request_id] = NULL;
-
- /* Now post the command */
- twa_post_command_packet(tw_dev, request_id, 1);
-} /* End twa_aen_sync_time() */
-
-/* This function will allocate memory and check if it is correctly aligned */
-static int twa_allocate_memory(TW_Device_Extension *tw_dev, int size, int which)
-{
- int i;
- dma_addr_t dma_handle;
- unsigned long *cpu_addr;
- int retval = 1;
-
- cpu_addr = pci_alloc_consistent(tw_dev->tw_pci_dev, size*TW_Q_LENGTH, &dma_handle);
- if (!cpu_addr) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x5, "Memory allocation failed");
- goto out;
- }
-
- if ((unsigned long)cpu_addr % (TW_ALIGNMENT_9000)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x6, "Failed to allocate correctly aligned memory");
- pci_free_consistent(tw_dev->tw_pci_dev, size*TW_Q_LENGTH, cpu_addr, dma_handle);
- goto out;
- }
-
- memset(cpu_addr, 0, size*TW_Q_LENGTH);
-
- for (i = 0; i < TW_Q_LENGTH; i++) {
- switch(which) {
- case 0:
- tw_dev->command_packet_phys[i] = dma_handle+(i*size);
- tw_dev->command_packet_virt[i] = (TW_Command_Full *)((unsigned char *)cpu_addr + (i*size));
- break;
- case 1:
- tw_dev->generic_buffer_phys[i] = dma_handle+(i*size);
- tw_dev->generic_buffer_virt[i] = (unsigned long *)((unsigned char *)cpu_addr + (i*size));
- break;
- }
- }
- retval = 0;
-out:
- return retval;
-} /* End twa_allocate_memory() */
-
-/* This function will check the status register for unexpected bits */
-static int twa_check_bits(u32 status_reg_value)
-{
- int retval = 1;
-
- if ((status_reg_value & TW_STATUS_EXPECTED_BITS) != TW_STATUS_EXPECTED_BITS)
- goto out;
- if ((status_reg_value & TW_STATUS_UNEXPECTED_BITS) != 0)
- goto out;
-
- retval = 0;
-out:
- return retval;
-} /* End twa_check_bits() */
-
-/* This function will check the srl and decide if we are compatible */
-static int twa_check_srl(TW_Device_Extension *tw_dev, int *flashed)
-{
- int retval = 1;
- unsigned short fw_on_ctlr_srl = 0, fw_on_ctlr_arch_id = 0;
- unsigned short fw_on_ctlr_branch = 0, fw_on_ctlr_build = 0;
- u32 init_connect_result = 0;
-
- if (twa_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS,
- TW_EXTENDED_INIT_CONNECT, TW_CURRENT_FW_SRL,
- TW_9000_ARCH_ID, TW_CURRENT_FW_BRANCH,
- TW_CURRENT_FW_BUILD, &fw_on_ctlr_srl,
- &fw_on_ctlr_arch_id, &fw_on_ctlr_branch,
- &fw_on_ctlr_build, &init_connect_result)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x7, "Initconnection failed while checking SRL");
- goto out;
- }
-
- tw_dev->working_srl = TW_CURRENT_FW_SRL;
- tw_dev->working_branch = TW_CURRENT_FW_BRANCH;
- tw_dev->working_build = TW_CURRENT_FW_BUILD;
-
- /* Try base mode compatibility */
- if (!(init_connect_result & TW_CTLR_FW_COMPATIBLE)) {
- if (twa_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS,
- TW_EXTENDED_INIT_CONNECT,
- TW_BASE_FW_SRL, TW_9000_ARCH_ID,
- TW_BASE_FW_BRANCH, TW_BASE_FW_BUILD,
- &fw_on_ctlr_srl, &fw_on_ctlr_arch_id,
- &fw_on_ctlr_branch, &fw_on_ctlr_build,
- &init_connect_result)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0xa, "Initconnection (base mode) failed while checking SRL");
- goto out;
- }
- if (!(init_connect_result & TW_CTLR_FW_COMPATIBLE)) {
- if (TW_CURRENT_FW_SRL > fw_on_ctlr_srl) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x32, "Firmware and driver incompatibility: please upgrade firmware");
- } else {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x33, "Firmware and driver incompatibility: please upgrade driver");
- }
- goto out;
- }
- tw_dev->working_srl = TW_BASE_FW_SRL;
- tw_dev->working_branch = TW_BASE_FW_BRANCH;
- tw_dev->working_build = TW_BASE_FW_BUILD;
- }
- retval = 0;
-out:
- return retval;
-} /* End twa_check_srl() */
-
-/* This function handles ioctl for the character device */
-static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
- long timeout;
- unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0;
- dma_addr_t dma_handle;
- int request_id = 0;
- unsigned int sequence_id = 0;
- unsigned char event_index, start_index;
- TW_Ioctl_Driver_Command driver_command;
- TW_Ioctl_Buf_Apache *tw_ioctl;
- TW_Lock *tw_lock;
- TW_Command_Full *full_command_packet;
- TW_Compatibility_Info *tw_compat_info;
- TW_Event *event;
- struct timeval current_time;
- u32 current_time_ms;
- TW_Device_Extension *tw_dev = twa_device_extension_list[iminor(inode)];
- int retval = TW_IOCTL_ERROR_OS_EFAULT;
-
- /* Only let one of these through at a time */
- if (down_interruptible(&tw_dev->ioctl_sem)) {
- retval = TW_IOCTL_ERROR_OS_EINTR;
- goto out;
- }
-
- /* First copy down the driver command */
- if (copy_from_user(&driver_command, (void *)arg, sizeof(TW_Ioctl_Driver_Command)))
- goto out2;
-
- /* Check data buffer size */
- if (driver_command.buffer_length > TW_MAX_SECTORS * 512) {
- retval = TW_IOCTL_ERROR_OS_EINVAL;
- goto out2;
- }
-
- /* Hardware can only do multiple of 512 byte transfers */
- data_buffer_length_adjusted = (driver_command.buffer_length + 511) & ~511;
-
- /* Now allocate ioctl buf memory */
- cpu_addr = pci_alloc_consistent(tw_dev->tw_pci_dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, &dma_handle);
- if (!cpu_addr) {
- retval = TW_IOCTL_ERROR_OS_ENOMEM;
- goto out2;
- }
-
- tw_ioctl = (TW_Ioctl_Buf_Apache *)cpu_addr;
-
- /* Now copy down the entire ioctl */
- if (copy_from_user(tw_ioctl, (void *)arg, driver_command.buffer_length + sizeof(TW_Ioctl_Buf_Apache) - 1))
- goto out3;
-
- /* See which ioctl we are doing */
- switch (cmd) {
- case TW_IOCTL_FIRMWARE_PASS_THROUGH:
- spin_lock_irqsave(tw_dev->host->host_lock, flags);
- twa_get_request_id(tw_dev, &request_id);
-
- /* Flag internal command */
- tw_dev->srb[request_id] = 0;
-
- /* Flag chrdev ioctl */
- tw_dev->chrdev_request_id = request_id;
-
- full_command_packet = &tw_ioctl->firmware_command;
-
- /* Load request id and sglist for both command types */
- twa_load_sgl(full_command_packet, request_id, dma_handle, data_buffer_length_adjusted);
-
- memcpy(tw_dev->command_packet_virt[request_id], &(tw_ioctl->firmware_command), sizeof(TW_Command_Full));
-
- /* Now post the command packet to the controller */
- twa_post_command_packet(tw_dev, request_id, 1);
- spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
-
- timeout = TW_IOCTL_CHRDEV_TIMEOUT*HZ;
-
- /* Now wait for command to complete */
- timeout = wait_event_interruptible_timeout(tw_dev->ioctl_wqueue, tw_dev->chrdev_request_id == TW_IOCTL_CHRDEV_FREE, timeout);
-
- /* Check if we timed out, got a signal, or didn't get
- an interrupt */
- if ((timeout <= 0) && (tw_dev->chrdev_request_id != TW_IOCTL_CHRDEV_FREE)) {
- /* Now we need to reset the board */
- if (timeout == TW_IOCTL_ERROR_OS_ERESTARTSYS) {
- retval = timeout;
- } else {
- printk(KERN_WARNING "3w-9xxx: scsi%d: WARNING: (0x%02X:0x%04X): Character ioctl (0x%x) timed out, resetting card.\n",
- tw_dev->host->host_no, TW_DRIVER, 0xc,
- cmd);
- retval = TW_IOCTL_ERROR_OS_EIO;
- }
- spin_lock_irqsave(tw_dev->host->host_lock, flags);
- tw_dev->state[request_id] = TW_S_COMPLETED;
- twa_free_request_id(tw_dev, request_id);
- tw_dev->posted_request_count--;
- twa_reset_device_extension(tw_dev);
- spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
- goto out3;
- }
-
- /* Now copy in the command packet response */
- memcpy(&(tw_ioctl->firmware_command), tw_dev->command_packet_virt[request_id], sizeof(TW_Command_Full));
-
- /* Now complete the io */
- spin_lock_irqsave(tw_dev->host->host_lock, flags);
- tw_dev->posted_request_count--;
- tw_dev->state[request_id] = TW_S_COMPLETED;
- twa_free_request_id(tw_dev, request_id);
- spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
- break;
- case TW_IOCTL_GET_COMPATIBILITY_INFO:
- tw_ioctl->driver_command.status = 0;
- /* Copy compatiblity struct into ioctl data buffer */
- tw_compat_info = (TW_Compatibility_Info *)tw_ioctl->data_buffer;
- strncpy(tw_compat_info->driver_version, twa_driver_version, strlen(twa_driver_version));
- tw_compat_info->working_srl = tw_dev->working_srl;
- tw_compat_info->working_branch = tw_dev->working_branch;
- tw_compat_info->working_build = tw_dev->working_build;
- break;
- case TW_IOCTL_GET_LAST_EVENT:
- if (tw_dev->event_queue_wrapped) {
- if (tw_dev->aen_clobber) {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER;
- tw_dev->aen_clobber = 0;
- } else
- tw_ioctl->driver_command.status = 0;
- } else {
- if (!tw_dev->error_index) {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
- break;
- }
- tw_ioctl->driver_command.status = 0;
- }
- event_index = (tw_dev->error_index - 1 + TW_Q_LENGTH) % TW_Q_LENGTH;
- memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event));
- tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED;
- break;
- case TW_IOCTL_GET_FIRST_EVENT:
- if (tw_dev->event_queue_wrapped) {
- if (tw_dev->aen_clobber) {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER;
- tw_dev->aen_clobber = 0;
- } else
- tw_ioctl->driver_command.status = 0;
- event_index = tw_dev->error_index;
- } else {
- if (!tw_dev->error_index) {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
- break;
- }
- tw_ioctl->driver_command.status = 0;
- event_index = 0;
- }
- memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event));
- tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED;
- break;
- case TW_IOCTL_GET_NEXT_EVENT:
- event = (TW_Event *)tw_ioctl->data_buffer;
- sequence_id = event->sequence_id;
- tw_ioctl->driver_command.status = 0;
-
- if (tw_dev->event_queue_wrapped) {
- if (tw_dev->aen_clobber) {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER;
- tw_dev->aen_clobber = 0;
- }
- start_index = tw_dev->error_index;
- } else {
- if (!tw_dev->error_index) {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
- break;
- }
- start_index = 0;
- }
- event_index = (start_index + sequence_id - tw_dev->event_queue[start_index]->sequence_id + 1) % TW_Q_LENGTH;
-
- if (!(tw_dev->event_queue[event_index]->sequence_id > sequence_id)) {
- if (tw_ioctl->driver_command.status == TW_IOCTL_ERROR_STATUS_AEN_CLOBBER)
- tw_dev->aen_clobber = 1;
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
- break;
- }
- memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event));
- tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED;
- break;
- case TW_IOCTL_GET_PREVIOUS_EVENT:
- event = (TW_Event *)tw_ioctl->data_buffer;
- sequence_id = event->sequence_id;
- tw_ioctl->driver_command.status = 0;
-
- if (tw_dev->event_queue_wrapped) {
- if (tw_dev->aen_clobber) {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER;
- tw_dev->aen_clobber = 0;
- }
- start_index = tw_dev->error_index;
- } else {
- if (!tw_dev->error_index) {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
- break;
- }
- start_index = 0;
- }
- event_index = (start_index + sequence_id - tw_dev->event_queue[start_index]->sequence_id - 1) % TW_Q_LENGTH;
-
- if (!(tw_dev->event_queue[event_index]->sequence_id < sequence_id)) {
- if (tw_ioctl->driver_command.status == TW_IOCTL_ERROR_STATUS_AEN_CLOBBER)
- tw_dev->aen_clobber = 1;
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
- break;
- }
- memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event));
- tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED;
- break;
- case TW_IOCTL_GET_LOCK:
- tw_lock = (TW_Lock *)tw_ioctl->data_buffer;
- do_gettimeofday(¤t_time);
- current_time_ms = (current_time.tv_sec * 1000) + (current_time.tv_usec / 1000);
-
- if ((tw_lock->force_flag == 1) || (tw_dev->ioctl_sem_lock == 0) || (current_time_ms >= tw_dev->ioctl_msec)) {
- tw_dev->ioctl_sem_lock = 1;
- tw_dev->ioctl_msec = current_time_ms + tw_lock->timeout_msec;
- tw_ioctl->driver_command.status = 0;
- tw_lock->time_remaining_msec = tw_lock->timeout_msec;
- } else {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_LOCKED;
- tw_lock->time_remaining_msec = tw_dev->ioctl_msec - current_time_ms;
- }
- break;
- case TW_IOCTL_RELEASE_LOCK:
- if (tw_dev->ioctl_sem_lock == 1) {
- tw_dev->ioctl_sem_lock = 0;
- tw_ioctl->driver_command.status = 0;
- } else {
- tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NOT_LOCKED;
- }
- break;
- default:
- retval = TW_IOCTL_ERROR_OS_ENOTTY;
- goto out3;
- }
-
- /* Now copy the entire response to userspace */
- if (copy_to_user((void *)arg, tw_ioctl, sizeof(TW_Ioctl_Buf_Apache) + driver_command.buffer_length - 1) == 0)
- retval = 0;
-out3:
- /* Now free ioctl buf memory */
- pci_free_consistent(tw_dev->tw_pci_dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, cpu_addr, dma_handle);
-out2:
- up(&tw_dev->ioctl_sem);
-out:
- return retval;
-} /* End twa_chrdev_ioctl() */
-
-/* This function handles open for the character device */
-static int twa_chrdev_open(struct inode *inode, struct file *file)
-{
- unsigned int minor_number;
- int retval = TW_IOCTL_ERROR_OS_ENODEV;
-
- minor_number = iminor(inode);
- if (minor_number >= twa_device_extension_count)
- goto out;
- retval = 0;
-out:
- return retval;
-} /* End twa_chrdev_open() */
-
-/* This function will print readable messages from status register errors */
-static int twa_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value)
-{
- int retval = 1;
-
- /* Check for various error conditions and handle them appropriately */
- if (status_reg_value & TW_STATUS_PCI_PARITY_ERROR) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0xc, "PCI Parity Error: clearing");
- writel(TW_CONTROL_CLEAR_PARITY_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
- }
-
- if (status_reg_value & TW_STATUS_PCI_ABORT) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0xd, "PCI Abort: clearing");
- writel(TW_CONTROL_CLEAR_PCI_ABORT, TW_CONTROL_REG_ADDR(tw_dev));
- pci_write_config_word(tw_dev->tw_pci_dev, PCI_STATUS, TW_PCI_CLEAR_PCI_ABORT);
- }
-
- if (status_reg_value & TW_STATUS_QUEUE_ERROR) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0xe, "Controller Queue Error: clearing");
- writel(TW_CONTROL_CLEAR_QUEUE_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
- }
-
- if (status_reg_value & TW_STATUS_SBUF_WRITE_ERROR) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0xf, "SBUF Write Error: clearing");
- writel(TW_CONTROL_CLEAR_SBUF_WRITE_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
- }
-
- if (status_reg_value & TW_STATUS_MICROCONTROLLER_ERROR) {
- if (tw_dev->reset_print == 0) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x10, "Microcontroller Error: clearing");
- tw_dev->reset_print = 1;
- }
- goto out;
- }
- retval = 0;
-out:
- return retval;
-} /* End twa_decode_bits() */
-
-/* This function will empty the response queue */
-static int twa_empty_response_queue(TW_Device_Extension *tw_dev)
-{
- u32 status_reg_value, response_que_value;
- int count = 0, retval = 1;
-
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
-
- while (((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) && (count < TW_MAX_RESPONSE_DRAIN)) {
- response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
- count++;
- }
- if (count == TW_MAX_RESPONSE_DRAIN)
- goto out;
-
- retval = 0;
-out:
- return retval;
-} /* End twa_empty_response_queue() */
-
-/* This function passes sense keys from firmware to scsi layer */
-static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host)
-{
- TW_Command_Full *full_command_packet;
- unsigned short error;
- int retval = 1;
-
- full_command_packet = tw_dev->command_packet_virt[request_id];
- /* Don't print error for Logical unit not supported during rollcall */
- error = full_command_packet->header.status_block.error;
- if ((error != TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED) && (error != TW_ERROR_UNIT_OFFLINE)) {
- if (print_host)
- printk(KERN_WARNING "3w-9xxx: scsi%d: ERROR: (0x%02X:0x%04X): %s:%s.\n",
- tw_dev->host->host_no,
- TW_MESSAGE_SOURCE_CONTROLLER_ERROR,
- full_command_packet->header.status_block.error,
- twa_string_lookup(twa_error_table,
- full_command_packet->header.status_block.error),
- full_command_packet->header.err_specific_desc);
- else
- printk(KERN_WARNING "3w-9xxx: ERROR: (0x%02X:0x%04X): %s:%s.\n",
- TW_MESSAGE_SOURCE_CONTROLLER_ERROR,
- full_command_packet->header.status_block.error,
- twa_string_lookup(twa_error_table,
- full_command_packet->header.status_block.error),
- full_command_packet->header.err_specific_desc);
- }
-
- if (copy_sense) {
- memcpy(tw_dev->srb[request_id]->sense_buffer, full_command_packet->header.sense_data, TW_SENSE_DATA_LENGTH);
- tw_dev->srb[request_id]->result = (full_command_packet->command.newcommand.status << 1);
- retval = TW_ISR_DONT_RESULT;
- goto out;
- }
- retval = 0;
-out:
- return retval;
-} /* End twa_fill_sense() */
-
-/* This function will free up device extension resources */
-static void twa_free_device_extension(TW_Device_Extension *tw_dev)
-{
- if (tw_dev->command_packet_virt[0])
- pci_free_consistent(tw_dev->tw_pci_dev,
- sizeof(TW_Command_Full)*TW_Q_LENGTH,
- tw_dev->command_packet_virt[0],
- tw_dev->command_packet_phys[0]);
-
- if (tw_dev->generic_buffer_virt[0])
- pci_free_consistent(tw_dev->tw_pci_dev,
- TW_SECTOR_SIZE*TW_Q_LENGTH,
- tw_dev->generic_buffer_virt[0],
- tw_dev->generic_buffer_phys[0]);
-
- if (tw_dev->event_queue[0])
- kfree(tw_dev->event_queue[0]);
-} /* End twa_free_device_extension() */
-
-/* This function will free a request id */
-static void twa_free_request_id(TW_Device_Extension *tw_dev, int request_id)
-{
- tw_dev->free_queue[tw_dev->free_tail] = request_id;
- tw_dev->state[request_id] = TW_S_FINISHED;
- tw_dev->free_tail = (tw_dev->free_tail + 1) % TW_Q_LENGTH;
-} /* End twa_free_request_id() */
-
-/* This function will get parameter table entires from the firmware */
-static void *twa_get_param(TW_Device_Extension *tw_dev, int request_id, int table_id, int parameter_id, int parameter_size_bytes)
-{
- TW_Command_Full *full_command_packet;
- TW_Command *command_packet;
- TW_Param_Apache *param;
- unsigned long param_value;
- void *retval = NULL;
-
- /* Setup the command packet */
- full_command_packet = tw_dev->command_packet_virt[request_id];
- memset(full_command_packet, 0, sizeof(TW_Command_Full));
- command_packet = &full_command_packet->command.oldcommand;
-
- command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
- command_packet->size = TW_COMMAND_SIZE;
- command_packet->request_id = request_id;
- command_packet->byte6_offset.block_count = 1;
-
- /* Now setup the param */
- param = (TW_Param_Apache *)tw_dev->generic_buffer_virt[request_id];
- memset(param, 0, TW_SECTOR_SIZE);
- param->table_id = table_id | 0x8000;
- param->parameter_id = parameter_id;
- param->parameter_size_bytes = parameter_size_bytes;
- param_value = tw_dev->generic_buffer_phys[request_id];
-
- command_packet->byte8_offset.param.sgl[0].address = param_value;
- command_packet->byte8_offset.param.sgl[0].length = TW_SECTOR_SIZE;
-
- /* Post the command packet to the board */
- twa_post_command_packet(tw_dev, request_id, 1);
-
- /* Poll for completion */
- if (twa_poll_response(tw_dev, request_id, 30))
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x13, "No valid response during get param")
- else
- retval = (void *)&(param->data[0]);
-
- tw_dev->posted_request_count--;
- tw_dev->state[request_id] = TW_S_INITIAL;
-
- return retval;
-} /* End twa_get_param() */
-
-/* This function will assign an available request id */
-static void twa_get_request_id(TW_Device_Extension *tw_dev, int *request_id)
-{
- *request_id = tw_dev->free_queue[tw_dev->free_head];
- tw_dev->free_head = (tw_dev->free_head + 1) % TW_Q_LENGTH;
- tw_dev->state[*request_id] = TW_S_STARTED;
-} /* End twa_get_request_id() */
-
-/* This function will send an initconnection command to controller */
-static int twa_initconnection(TW_Device_Extension *tw_dev, int message_credits,
- u32 set_features, unsigned short current_fw_srl,
- unsigned short current_fw_arch_id,
- unsigned short current_fw_branch,
- unsigned short current_fw_build,
- unsigned short *fw_on_ctlr_srl,
- unsigned short *fw_on_ctlr_arch_id,
- unsigned short *fw_on_ctlr_branch,
- unsigned short *fw_on_ctlr_build,
- u32 *init_connect_result)
-{
- TW_Command_Full *full_command_packet;
- TW_Initconnect *tw_initconnect;
- int request_id = 0, retval = 1;
-
- /* Initialize InitConnection command packet */
- full_command_packet = tw_dev->command_packet_virt[request_id];
- memset(full_command_packet, 0, sizeof(TW_Command_Full));
- full_command_packet->header.header_desc.size_header = 128;
-
- tw_initconnect = (TW_Initconnect *)&full_command_packet->command.oldcommand;
- tw_initconnect->opcode__reserved = TW_OPRES_IN(0, TW_OP_INIT_CONNECTION);
- tw_initconnect->request_id = request_id;
- tw_initconnect->message_credits = message_credits;
- tw_initconnect->features = set_features;
-#if BITS_PER_LONG > 32
- /* Turn on 64-bit sgl support */
- tw_initconnect->features |= 1;
-#endif
-
- if (set_features & TW_EXTENDED_INIT_CONNECT) {
- tw_initconnect->size = TW_INIT_COMMAND_PACKET_SIZE_EXTENDED;
- tw_initconnect->fw_srl = current_fw_srl;
- tw_initconnect->fw_arch_id = current_fw_arch_id;
- tw_initconnect->fw_branch = current_fw_branch;
- tw_initconnect->fw_build = current_fw_build;
- } else
- tw_initconnect->size = TW_INIT_COMMAND_PACKET_SIZE;
-
- /* Send command packet to the board */
- twa_post_command_packet(tw_dev, request_id, 1);
-
- /* Poll for completion */
- if (twa_poll_response(tw_dev, request_id, 30)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x15, "No valid response during init connection");
- } else {
- if (set_features & TW_EXTENDED_INIT_CONNECT) {
- *fw_on_ctlr_srl = tw_initconnect->fw_srl;
- *fw_on_ctlr_arch_id = tw_initconnect->fw_arch_id;
- *fw_on_ctlr_branch = tw_initconnect->fw_branch;
- *fw_on_ctlr_build = tw_initconnect->fw_build;
- *init_connect_result = tw_initconnect->result;
- }
- retval = 0;
- }
-
- tw_dev->posted_request_count--;
- tw_dev->state[request_id] = TW_S_INITIAL;
-
- return retval;
-} /* End twa_initconnection() */
-
-/* This function will initialize the fields of a device extension */
-static int twa_initialize_device_extension(TW_Device_Extension *tw_dev)
-{
- int i, retval = 1;
-
- /* Initialize command packet buffers */
- if (twa_allocate_memory(tw_dev, sizeof(TW_Command_Full), 0)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x16, "Command packet memory allocation failed");
- goto out;
- }
-
- /* Initialize generic buffer */
- if (twa_allocate_memory(tw_dev, TW_SECTOR_SIZE, 1)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x17, "Generic memory allocation failed");
- goto out;
- }
-
- /* Allocate event info space */
- tw_dev->event_queue[0] = kmalloc(sizeof(TW_Event) * TW_Q_LENGTH, GFP_KERNEL);
- if (!tw_dev->event_queue[0]) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x18, "Event info memory allocation failed");
- goto out;
- }
-
- memset(tw_dev->event_queue[0], 0, sizeof(TW_Event) * TW_Q_LENGTH);
-
- for (i = 0; i < TW_Q_LENGTH; i++) {
- tw_dev->event_queue[i] = (TW_Event *)((unsigned char *)tw_dev->event_queue[0] + (i * sizeof(TW_Event)));
- tw_dev->free_queue[i] = i;
- tw_dev->state[i] = TW_S_INITIAL;
- }
-
- tw_dev->pending_head = TW_Q_START;
- tw_dev->pending_tail = TW_Q_START;
- tw_dev->free_head = TW_Q_START;
- tw_dev->free_tail = TW_Q_START;
- tw_dev->error_sequence_id = 1;
- tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
-
- init_MUTEX(&tw_dev->ioctl_sem);
- init_waitqueue_head(&tw_dev->ioctl_wqueue);
-
- retval = 0;
-out:
- return retval;
-} /* End twa_initialize_device_extension() */
-
-/* This function is the interrupt service routine */
-static irqreturn_t twa_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
-{
- int request_id, error = 0;
- u32 status_reg_value;
- TW_Response_Queue response_que;
- TW_Command_Full *full_command_packet;
- TW_Command *command_packet;
- TW_Device_Extension *tw_dev = (TW_Device_Extension *)dev_instance;
- int handled = 0;
-
- /* Get the per adapter lock */
- spin_lock(tw_dev->host->host_lock);
-
- /* See if the interrupt matches this instance */
- if (tw_dev->tw_pci_dev->irq == (unsigned int)irq) {
-
- handled = 1;
-
- /* Read the registers */
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
-
- /* Check if this is our interrupt, otherwise bail */
- if (!(status_reg_value & TW_STATUS_VALID_INTERRUPT))
- goto twa_interrupt_bail;
-
- /* Check controller for errors */
- if (twa_check_bits(status_reg_value)) {
- if (twa_decode_bits(tw_dev, status_reg_value)) {
- TW_CLEAR_ALL_INTERRUPTS(tw_dev);
- goto twa_interrupt_bail;
- }
- }
-
- /* Handle host interrupt */
- if (status_reg_value & TW_STATUS_HOST_INTERRUPT)
- TW_CLEAR_HOST_INTERRUPT(tw_dev);
-
- /* Handle attention interrupt */
- if (status_reg_value & TW_STATUS_ATTENTION_INTERRUPT) {
- TW_CLEAR_ATTENTION_INTERRUPT(tw_dev);
- if (!(test_and_set_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags))) {
- twa_get_request_id(tw_dev, &request_id);
-
- error = twa_aen_read_queue(tw_dev, request_id);
- if (error) {
- tw_dev->state[request_id] = TW_S_COMPLETED;
- twa_free_request_id(tw_dev, request_id);
- clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags);
- }
- }
- }
-
- /* Handle command interrupt */
- if (status_reg_value & TW_STATUS_COMMAND_INTERRUPT) {
- TW_MASK_COMMAND_INTERRUPT(tw_dev);
- /* Drain as many pending commands as we can */
- while (tw_dev->pending_request_count > 0) {
- request_id = tw_dev->pending_queue[tw_dev->pending_head];
- if (tw_dev->state[request_id] != TW_S_PENDING) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x19, "Found request id that wasn't pending");
- TW_CLEAR_ALL_INTERRUPTS(tw_dev);
- goto twa_interrupt_bail;
- }
- if (twa_post_command_packet(tw_dev, request_id, 1)==0) {
- tw_dev->pending_head = (tw_dev->pending_head + 1) % TW_Q_LENGTH;
- tw_dev->pending_request_count--;
- } else {
- /* If we get here, we will continue re-posting on the next command interrupt */
- break;
- }
- }
- }
-
- /* Handle response interrupt */
- if (status_reg_value & TW_STATUS_RESPONSE_INTERRUPT) {
-
- /* Drain the response queue from the board */
- while ((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) {
- /* Complete the response */
- response_que.value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
- request_id = TW_RESID_OUT(response_que.response_id);
- full_command_packet = tw_dev->command_packet_virt[request_id];
- error = 0;
- command_packet = &full_command_packet->command.oldcommand;
- /* Check for command packet errors */
- if (full_command_packet->command.newcommand.status != 0) {
- if (tw_dev->srb[request_id] != 0) {
- error = twa_fill_sense(tw_dev, request_id, 1, 1);
- } else {
- /* Skip ioctl error prints */
- if (request_id != tw_dev->chrdev_request_id) {
- error = twa_fill_sense(tw_dev, request_id, 0, 1);
- }
- }
- }
-
- /* Check for correct state */
- if (tw_dev->state[request_id] != TW_S_POSTED) {
- if (tw_dev->srb[request_id] != 0) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1a, "Received a request id that wasn't posted");
- TW_CLEAR_ALL_INTERRUPTS(tw_dev);
- goto twa_interrupt_bail;
- }
- }
-
- /* Check for internal command completion */
- if (tw_dev->srb[request_id] == 0) {
- if (request_id != tw_dev->chrdev_request_id) {
- if (twa_aen_complete(tw_dev, request_id))
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1b, "Error completing AEN during attention interrupt");
- } else {
- tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
- wake_up(&tw_dev->ioctl_wqueue);
- }
- } else {
- twa_scsiop_execute_scsi_complete(tw_dev, request_id);
- /* If no error command was a success */
- if (error == 0) {
- tw_dev->srb[request_id]->result = (DID_OK << 16);
- }
-
- /* If error, command failed */
- if (error == 1) {
- /* Ask for a host reset */
- tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
- }
-
- /* Now complete the io */
- tw_dev->state[request_id] = TW_S_COMPLETED;
- twa_free_request_id(tw_dev, request_id);
- tw_dev->posted_request_count--;
- tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
- twa_unmap_scsi_data(tw_dev, request_id);
- }
-
- /* Check for valid status after each drain */
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
- if (twa_check_bits(status_reg_value)) {
- if (twa_decode_bits(tw_dev, status_reg_value)) {
- TW_CLEAR_ALL_INTERRUPTS(tw_dev);
- goto twa_interrupt_bail;
- }
- }
- }
- }
- }
-twa_interrupt_bail:
- spin_unlock(tw_dev->host->host_lock);
- return IRQ_RETVAL(handled);
-} /* End twa_interrupt() */
-
-/* This function will load the request id and various sgls for ioctls */
-static void twa_load_sgl(TW_Command_Full *full_command_packet, int request_id, dma_addr_t dma_handle, int length)
-{
- TW_Command *oldcommand;
- TW_Command_Apache *newcommand;
- TW_SG_Entry *sgl;
-
- if (TW_OP_OUT(full_command_packet->command.newcommand.opcode__reserved) == TW_OP_EXECUTE_SCSI) {
- newcommand = &full_command_packet->command.newcommand;
- newcommand->request_id = request_id;
- newcommand->sg_list[0].address = dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1;
- newcommand->sg_list[0].length = length;
- } else {
- oldcommand = &full_command_packet->command.oldcommand;
- oldcommand->request_id = request_id;
-
- if (TW_SGL_OUT(oldcommand->opcode__sgloffset)) {
- /* Load the sg list */
- sgl = (TW_SG_Entry *)((u32 *)oldcommand+TW_SGL_OUT(oldcommand->opcode__sgloffset));
- sgl->address = dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1;
- sgl->length = length;
- }
- }
-} /* End twa_load_sgl() */
-
-/* This function will perform a pci-dma mapping for a scatter gather list */
-static int twa_map_scsi_sg_data(TW_Device_Extension *tw_dev, int request_id)
-{
- int use_sg;
- struct scsi_cmnd *cmd = tw_dev->srb[request_id];
- struct pci_dev *pdev = tw_dev->tw_pci_dev;
- int retval = 0;
-
- if (cmd->use_sg == 0)
- goto out;
-
- use_sg = pci_map_sg(pdev, cmd->buffer, cmd->use_sg, DMA_BIDIRECTIONAL);
-
- if (use_sg == 0) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1c, "Failed to map scatter gather list");
- goto out;
- }
-
- cmd->SCp.phase = TW_PHASE_SGLIST;
- cmd->SCp.have_data_in = use_sg;
- retval = use_sg;
-out:
- return retval;
-} /* End twa_map_scsi_sg_data() */
-
-/* This function will perform a pci-dma map for a single buffer */
-static dma_addr_t twa_map_scsi_single_data(TW_Device_Extension *tw_dev, int request_id)
-{
- dma_addr_t mapping;
- struct scsi_cmnd *cmd = tw_dev->srb[request_id];
- struct pci_dev *pdev = tw_dev->tw_pci_dev;
- int retval = 0;
-
- if (cmd->request_bufflen == 0) {
- retval = 0;
- goto out;
- }
-
- mapping = pci_map_single(pdev, cmd->request_buffer, cmd->request_bufflen, DMA_BIDIRECTIONAL);
-
- if (mapping == 0) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1d, "Failed to map page");
- goto out;
- }
-
- cmd->SCp.phase = TW_PHASE_SINGLE;
- cmd->SCp.have_data_in = mapping;
- retval = mapping;
-out:
- return retval;
-} /* End twa_map_scsi_single_data() */
-
-/* This function will poll for a response interrupt of a request */
-static int twa_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds)
-{
- int retval = 1, found = 0, response_request_id;
- TW_Response_Queue response_queue;
- TW_Command_Full *full_command_packet = tw_dev->command_packet_virt[request_id];
-
- if (twa_poll_status_gone(tw_dev, TW_STATUS_RESPONSE_QUEUE_EMPTY, seconds) == 0) {
- response_queue.value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
- response_request_id = TW_RESID_OUT(response_queue.response_id);
- if (request_id != response_request_id) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1e, "Found unexpected request id while polling for response");
- goto out;
- }
- if (TW_OP_OUT(full_command_packet->command.newcommand.opcode__reserved) == TW_OP_EXECUTE_SCSI) {
- if (full_command_packet->command.newcommand.status != 0) {
- /* bad response */
- twa_fill_sense(tw_dev, request_id, 0, 0);
- goto out;
- }
- found = 1;
- } else {
- if (full_command_packet->command.oldcommand.status != 0) {
- /* bad response */
- twa_fill_sense(tw_dev, request_id, 0, 0);
- goto out;
- }
- found = 1;
- }
- }
-
- if (found)
- retval = 0;
-out:
- return retval;
-} /* End twa_poll_response() */
-
-/* This function will poll the status register for a flag */
-static int twa_poll_status(TW_Device_Extension *tw_dev, u32 flag, int seconds)
-{
- u32 status_reg_value;
- unsigned long before;
- int retval = 1;
-
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
- before = jiffies;
-
- if (twa_check_bits(status_reg_value))
- twa_decode_bits(tw_dev, status_reg_value);
-
- while ((status_reg_value & flag) != flag) {
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
-
- if (twa_check_bits(status_reg_value))
- twa_decode_bits(tw_dev, status_reg_value);
-
- if (time_after(jiffies, before + HZ * seconds))
- goto out;
-
- msleep(50);
- }
- retval = 0;
-out:
- return retval;
-} /* End twa_poll_status() */
-
-/* This function will poll the status register for disappearance of a flag */
-static int twa_poll_status_gone(TW_Device_Extension *tw_dev, u32 flag, int seconds)
-{
- u32 status_reg_value;
- unsigned long before;
- int retval = 1;
-
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
- before = jiffies;
-
- if (twa_check_bits(status_reg_value))
- twa_decode_bits(tw_dev, status_reg_value);
-
- while ((status_reg_value & flag) != 0) {
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
- if (twa_check_bits(status_reg_value))
- twa_decode_bits(tw_dev, status_reg_value);
-
- if (time_after(jiffies, before + HZ * seconds))
- goto out;
-
- msleep(50);
- }
- retval = 0;
-out:
- return retval;
-} /* End twa_poll_status_gone() */
-
-/* This function will attempt to post a command packet to the board */
-static int twa_post_command_packet(TW_Device_Extension *tw_dev, int request_id, char internal)
-{
- u32 status_reg_value;
- unsigned long command_que_value;
- int retval = 1;
-
- command_que_value = tw_dev->command_packet_phys[request_id];
- status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
-
- if (twa_check_bits(status_reg_value))
- twa_decode_bits(tw_dev, status_reg_value);
-
- if (((tw_dev->pending_request_count > 0) && (tw_dev->state[request_id] != TW_S_PENDING)) || (status_reg_value & TW_STATUS_COMMAND_QUEUE_FULL)) {
-
- /* Only pend internal driver commands */
- if (!internal) {
- retval = SCSI_MLQUEUE_HOST_BUSY;
- goto out;
- }
-
- /* Couldn't post the command packet, so we do it later */
- if (tw_dev->state[request_id] != TW_S_PENDING) {
- tw_dev->state[request_id] = TW_S_PENDING;
- tw_dev->pending_request_count++;
- if (tw_dev->pending_request_count > tw_dev->max_pending_request_count) {
- tw_dev->max_pending_request_count = tw_dev->pending_request_count;
- }
- tw_dev->pending_queue[tw_dev->pending_tail] = request_id;
- tw_dev->pending_tail = (tw_dev->pending_tail + 1) % TW_Q_LENGTH;
- }
- TW_UNMASK_COMMAND_INTERRUPT(tw_dev);
- goto out;
- } else {
- /* We successfully posted the command packet */
-#if BITS_PER_LONG > 32
- writeq(TW_COMMAND_OFFSET + command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev));
-#else
- writel(TW_COMMAND_OFFSET + command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev));
-#endif
- tw_dev->state[request_id] = TW_S_POSTED;
- tw_dev->posted_request_count++;
- if (tw_dev->posted_request_count > tw_dev->max_posted_request_count) {
- tw_dev->max_posted_request_count = tw_dev->posted_request_count;
- }
- }
- retval = 0;
-out:
- return retval;
-} /* End twa_post_command_packet() */
-
-/* This function will reset a device extension */
-static int twa_reset_device_extension(TW_Device_Extension *tw_dev)
-{
- int i = 0;
- int retval = 1;
-
- /* Abort all requests that are in progress */
- for (i = 0; i < TW_Q_LENGTH; i++) {
- if ((tw_dev->state[i] != TW_S_FINISHED) &&
- (tw_dev->state[i] != TW_S_INITIAL) &&
- (tw_dev->state[i] != TW_S_COMPLETED)) {
- if (tw_dev->srb[i]) {
- tw_dev->srb[i]->result = (DID_RESET << 16);
- tw_dev->srb[i]->scsi_done(tw_dev->srb[i]);
- twa_unmap_scsi_data(tw_dev, i);
- }
- }
- }
-
- /* Reset queues and counts */
- for (i = 0; i < TW_Q_LENGTH; i++) {
- tw_dev->free_queue[i] = i;
- tw_dev->state[i] = TW_S_INITIAL;
- }
- tw_dev->free_head = TW_Q_START;
- tw_dev->free_tail = TW_Q_START;
- tw_dev->posted_request_count = 0;
- tw_dev->pending_request_count = 0;
- tw_dev->pending_head = TW_Q_START;
- tw_dev->pending_tail = TW_Q_START;
- tw_dev->reset_print = 0;
- tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
- tw_dev->flags = 0;
-
- TW_DISABLE_INTERRUPTS(tw_dev);
-
- if (twa_reset_sequence(tw_dev, 1))
- goto out;
-
- TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
-
- retval = 0;
-out:
- return retval;
-} /* End twa_reset_device_extension() */
-
-/* This function will reset a controller */
-static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset)
-{
- int tries = 0, retval = 1, flashed = 0, do_soft_reset = soft_reset;
-
- while (tries < TW_MAX_RESET_TRIES) {
- if (do_soft_reset)
- TW_SOFT_RESET(tw_dev);
-
- /* Make sure controller is in a good state */
- if (twa_poll_status(tw_dev, TW_STATUS_MICROCONTROLLER_READY | (do_soft_reset == 1 ? TW_STATUS_ATTENTION_INTERRUPT : 0), 30)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1f, "Microcontroller not ready during reset sequence");
- do_soft_reset = 1;
- tries++;
- continue;
- }
-
- /* Empty response queue */
- if (twa_empty_response_queue(tw_dev)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x20, "Response queue empty failed during reset sequence");
- do_soft_reset = 1;
- tries++;
- continue;
- }
-
- flashed = 0;
-
- /* Check for compatibility/flash */
- if (twa_check_srl(tw_dev, &flashed)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x21, "Compatibility check failed during reset sequence");
- do_soft_reset = 1;
- tries++;
- continue;
- } else {
- if (flashed) {
- tries++;
- continue;
- }
- }
-
- /* Drain the AEN queue */
- if (twa_aen_drain_queue(tw_dev, soft_reset)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x22, "AEN drain failed during reset sequence");
- do_soft_reset = 1;
- tries++;
- continue;
- }
-
- /* If we got here, controller is in a good state */
- retval = 0;
- goto out;
- }
-out:
- return retval;
-} /* End twa_reset_sequence() */
-
-/* This funciton returns unit geometry in cylinders/heads/sectors */
-static int twa_scsi_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int geom[])
-{
- int heads, sectors, cylinders;
- TW_Device_Extension *tw_dev;
-
- tw_dev = (TW_Device_Extension *)sdev->host->hostdata;
-
- if (capacity >= 0x200000) {
- heads = 255;
- sectors = 63;
- cylinders = sector_div(capacity, heads * sectors);
- } else {
- heads = 64;
- sectors = 32;
- cylinders = sector_div(capacity, heads * sectors);
- }
-
- geom[0] = heads;
- geom[1] = sectors;
- geom[2] = cylinders;
-
- return 0;
-} /* End twa_scsi_biosparam() */
-
-/* This is the new scsi eh abort function */
-static int twa_scsi_eh_abort(struct scsi_cmnd *SCpnt)
-{
- int i;
- TW_Device_Extension *tw_dev = NULL;
- int retval = FAILED;
-
- tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
-
- spin_unlock_irq(tw_dev->host->host_lock);
-
- tw_dev->num_aborts++;
-
- /* If we find any IO's in process, we have to reset the card */
- for (i = 0; i < TW_Q_LENGTH; i++) {
- if ((tw_dev->state[i] != TW_S_FINISHED) && (tw_dev->state[i] != TW_S_INITIAL)) {
- printk(KERN_WARNING "3w-9xxx: scsi%d: WARNING: (0x%02X:0x%04X): Unit #%d: Command (0x%x) timed out, resetting card.\n",
- tw_dev->host->host_no, TW_DRIVER, 0x2c,
- SCpnt->device->id, SCpnt->cmnd[0]);
- if (twa_reset_device_extension(tw_dev)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2a, "Controller reset failed during scsi abort");
- goto out;
- }
- break;
- }
- }
- retval = SUCCESS;
-out:
- spin_lock_irq(tw_dev->host->host_lock);
- return retval;
-} /* End twa_scsi_eh_abort() */
-
-/* This is the new scsi eh reset function */
-static int twa_scsi_eh_reset(struct scsi_cmnd *SCpnt)
-{
- TW_Device_Extension *tw_dev = NULL;
- int retval = FAILED;
-
- tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
-
- spin_unlock_irq(tw_dev->host->host_lock);
-
- tw_dev->num_resets++;
-
- printk(KERN_WARNING "3w-9xxx: scsi%d: SCSI host reset started.\n", tw_dev->host->host_no);
-
- /* Now reset the card and some of the device extension data */
- if (twa_reset_device_extension(tw_dev)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2b, "Controller reset failed during scsi host reset");
- goto out;
- }
- printk(KERN_WARNING "3w-9xxx: scsi%d: SCSI host reset succeeded.\n", tw_dev->host->host_no);
- retval = SUCCESS;
-out:
- spin_lock_irq(tw_dev->host->host_lock);
- return retval;
-} /* End twa_scsi_eh_reset() */
-
-/* This is the main scsi queue function to handle scsi opcodes */
-static int twa_scsi_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
-{
- int request_id, retval;
- TW_Device_Extension *tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
-
- /* Save done function into scsi_cmnd struct */
- SCpnt->scsi_done = done;
-
- /* Get a free request id */
- twa_get_request_id(tw_dev, &request_id);
-
- /* Save the scsi command for use by the ISR */
- tw_dev->srb[request_id] = SCpnt;
-
- /* Initialize phase to zero */
- SCpnt->SCp.phase = TW_PHASE_INITIAL;
-
- retval = twa_scsiop_execute_scsi(tw_dev, request_id, NULL, 0, NULL);
- switch (retval) {
- case SCSI_MLQUEUE_HOST_BUSY:
- twa_free_request_id(tw_dev, request_id);
- break;
- case 1:
- tw_dev->state[request_id] = TW_S_COMPLETED;
- twa_free_request_id(tw_dev, request_id);
- SCpnt->result = (DID_ERROR << 16);
- done(SCpnt);
- }
-
- return retval;
-} /* End twa_scsi_queue() */
-
-/* This function hands scsi cdb's to the firmware */
-static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Apache *sglistarg)
-{
- TW_Command_Full *full_command_packet;
- TW_Command_Apache *command_packet;
- u32 num_sectors = 0x0;
- int i, sg_count;
- struct scsi_cmnd *srb = NULL;
- struct scatterlist *sglist = NULL;
- u32 buffaddr = 0x0;
- int retval = 1;
-
- if (tw_dev->srb[request_id]) {
- if (tw_dev->srb[request_id]->request_buffer) {
- sglist = (struct scatterlist *)tw_dev->srb[request_id]->request_buffer;
- }
- srb = tw_dev->srb[request_id];
- }
-
- /* Initialize command packet */
- full_command_packet = tw_dev->command_packet_virt[request_id];
- full_command_packet->header.header_desc.size_header = 128;
- full_command_packet->header.status_block.error = 0;
- full_command_packet->header.status_block.severity__reserved = 0;
-
- command_packet = &full_command_packet->command.newcommand;
- command_packet->status = 0;
- command_packet->opcode__reserved = TW_OPRES_IN(0, TW_OP_EXECUTE_SCSI);
-
- /* We forced 16 byte cdb use earlier */
- if (!cdb)
- memcpy(command_packet->cdb, srb->cmnd, TW_MAX_CDB_LEN);
- else
- memcpy(command_packet->cdb, cdb, TW_MAX_CDB_LEN);
-
- if (srb)
- command_packet->unit = srb->device->id;
- else
- command_packet->unit = 0;
-
- command_packet->request_id = request_id;
- command_packet->sgl_offset = 16;
-
- if (!sglistarg) {
- /* Map sglist from scsi layer to cmd packet */
- if (tw_dev->srb[request_id]->use_sg == 0) {
- if (tw_dev->srb[request_id]->request_bufflen < TW_MIN_SGL_LENGTH) {
- command_packet->sg_list[0].address = tw_dev->generic_buffer_phys[request_id];
- command_packet->sg_list[0].length = TW_MIN_SGL_LENGTH;
- } else {
- buffaddr = twa_map_scsi_single_data(tw_dev, request_id);
- if (buffaddr == 0)
- goto out;
-
- command_packet->sg_list[0].address = buffaddr;
- command_packet->sg_list[0].length = tw_dev->srb[request_id]->request_bufflen;
- }
- command_packet->sgl_entries = 1;
-
- if (command_packet->sg_list[0].address & TW_ALIGNMENT_9000_SGL) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2d, "Found unaligned address during execute scsi");
- goto out;
- }
- }
-
- if (tw_dev->srb[request_id]->use_sg > 0) {
- sg_count = twa_map_scsi_sg_data(tw_dev, request_id);
- if (sg_count == 0)
- goto out;
-
- for (i = 0; i < sg_count; i++) {
- command_packet->sg_list[i].address = sg_dma_address(&sglist[i]);
- command_packet->sg_list[i].length = sg_dma_len(&sglist[i]);
- if (command_packet->sg_list[i].address & TW_ALIGNMENT_9000_SGL) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2e, "Found unaligned sgl address during execute scsi");
- goto out;
- }
- }
- command_packet->sgl_entries = tw_dev->srb[request_id]->use_sg;
- }
- } else {
- /* Internal cdb post */
- for (i = 0; i < use_sg; i++) {
- command_packet->sg_list[i].address = sglistarg[i].address;
- command_packet->sg_list[i].length = sglistarg[i].length;
- if (command_packet->sg_list[i].address & TW_ALIGNMENT_9000_SGL) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2f, "Found unaligned sgl address during internal post");
- goto out;
- }
- }
- command_packet->sgl_entries = use_sg;
- }
-
- if (srb) {
- if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6)
- num_sectors = (u32)srb->cmnd[4];
-
- if (srb->cmnd[0] == READ_10 || srb->cmnd[0] == WRITE_10)
- num_sectors = (u32)srb->cmnd[8] | ((u32)srb->cmnd[7] << 8);
- }
-
- /* Update sector statistic */
- tw_dev->sector_count = num_sectors;
- if (tw_dev->sector_count > tw_dev->max_sector_count)
- tw_dev->max_sector_count = tw_dev->sector_count;
-
- /* Update SG statistics */
- if (srb) {
- tw_dev->sgl_entries = tw_dev->srb[request_id]->use_sg;
- if (tw_dev->sgl_entries > tw_dev->max_sgl_entries)
- tw_dev->max_sgl_entries = tw_dev->sgl_entries;
- }
-
- /* Now post the command to the board */
- if (srb) {
- retval = twa_post_command_packet(tw_dev, request_id, 0);
- } else {
- twa_post_command_packet(tw_dev, request_id, 1);
- retval = 0;
- }
-out:
- return retval;
-} /* End twa_scsiop_execute_scsi() */
-
-/* This function completes an execute scsi operation */
-static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int request_id)
-{
- /* Copy the response if too small */
- if ((tw_dev->srb[request_id]->request_buffer) && (tw_dev->srb[request_id]->request_bufflen < TW_MIN_SGL_LENGTH)) {
- memcpy(tw_dev->srb[request_id]->request_buffer,
- tw_dev->generic_buffer_virt[request_id],
- tw_dev->srb[request_id]->request_bufflen);
- }
-} /* End twa_scsiop_execute_scsi_complete() */
-
-/* This function tells the controller to shut down */
-static void __twa_shutdown(TW_Device_Extension *tw_dev)
-{
- /* Disable interrupts */
- TW_DISABLE_INTERRUPTS(tw_dev);
-
- printk(KERN_WARNING "3w-9xxx: Shutting down host %d.\n", tw_dev->host->host_no);
-
- /* Tell the card we are shutting down */
- if (twa_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x31, "Connection shutdown failed");
- } else {
- printk(KERN_WARNING "3w-9xxx: Shutdown complete.\n");
- }
-
- /* Clear all interrupts just before exit */
- TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
-} /* End __twa_shutdown() */
-
-/* Wrapper for __twa_shutdown */
-static void twa_shutdown(struct device *dev)
-{
- struct Scsi_Host *host = pci_get_drvdata(to_pci_dev(dev));
- TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
-
- __twa_shutdown(tw_dev);
-} /* End twa_shutdown() */
-
-/* This function will look up a string */
-static char *twa_string_lookup(twa_message_type *table, unsigned int code)
-{
- int index;
-
- for (index = 0; ((code != table[index].code) &&
- (table[index].text != (char *)0)); index++);
- return(table[index].text);
-} /* End twa_string_lookup() */
-
-/* This function will perform a pci-dma unmap */
-static void twa_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id)
-{
- struct scsi_cmnd *cmd = tw_dev->srb[request_id];
- struct pci_dev *pdev = tw_dev->tw_pci_dev;
-
- switch(cmd->SCp.phase) {
- case TW_PHASE_SINGLE:
- pci_unmap_single(pdev, cmd->SCp.have_data_in, cmd->request_bufflen, DMA_BIDIRECTIONAL);
- break;
- case TW_PHASE_SGLIST:
- pci_unmap_sg(pdev, cmd->request_buffer, cmd->use_sg, DMA_BIDIRECTIONAL);
- break;
- }
-} /* End twa_unmap_scsi_data() */
-
-/* scsi_host_template initializer */
-static struct scsi_host_template driver_template = {
- .module = THIS_MODULE,
- .name = "3ware 9000 Storage Controller",
- .queuecommand = twa_scsi_queue,
- .eh_abort_handler = twa_scsi_eh_abort,
- .eh_host_reset_handler = twa_scsi_eh_reset,
- .bios_param = twa_scsi_biosparam,
- .can_queue = TW_Q_LENGTH-2,
- .this_id = -1,
- .sg_tablesize = TW_APACHE_MAX_SGL_LENGTH,
- .max_sectors = TW_MAX_SECTORS,
- .cmd_per_lun = TW_MAX_CMDS_PER_LUN,
- .use_clustering = ENABLE_CLUSTERING,
- .shost_attrs = twa_host_attrs,
- .sdev_attrs = twa_dev_attrs,
- .emulated = 1
-};
-
-/* This function will probe and initialize a card */
-static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
-{
- struct Scsi_Host *host = NULL;
- TW_Device_Extension *tw_dev;
- u32 mem_addr;
- int retval = -ENODEV;
-
- retval = pci_enable_device(pdev);
- if (retval) {
- TW_PRINTK(host, TW_DRIVER, 0x34, "Failed to enable pci device");
- goto out_disable_device;
- }
-
- pci_set_master(pdev);
-
- retval = pci_set_dma_mask(pdev, TW_DMA_MASK);
- if (retval) {
- TW_PRINTK(host, TW_DRIVER, 0x23, "Failed to set dma mask");
- goto out_disable_device;
- }
-
- host = scsi_host_alloc(&driver_template, sizeof(TW_Device_Extension));
- if (!host) {
- TW_PRINTK(host, TW_DRIVER, 0x24, "Failed to allocate memory for device extension");
- retval = -ENOMEM;
- goto out_disable_device;
- }
- tw_dev = (TW_Device_Extension *)host->hostdata;
-
- memset(tw_dev, 0, sizeof(TW_Device_Extension));
-
- /* Save values to device extension */
- tw_dev->host = host;
- tw_dev->tw_pci_dev = pdev;
-
- if (twa_initialize_device_extension(tw_dev)) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x25, "Failed to initialize device extension");
- goto out_free_device_extension;
- }
-
- /* Request IO regions */
- retval = pci_request_regions(pdev, "3w-9xxx");
- if (retval) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x26, "Failed to get mem region");
- goto out_free_device_extension;
- }
-
- mem_addr = pci_resource_start(pdev, 1);
-
- /* Save base address */
- tw_dev->base_addr = ioremap(mem_addr, PAGE_SIZE);
- if (!tw_dev->base_addr) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x35, "Failed to ioremap");
- goto out_release_mem_region;
- }
-
- /* Disable interrupts on the card */
- TW_DISABLE_INTERRUPTS(tw_dev);
-
- /* Initialize the card */
- if (twa_reset_sequence(tw_dev, 0))
- goto out_release_mem_region;
-
- /* Set host specific parameters */
- host->max_id = TW_MAX_UNITS;
- host->max_cmd_len = TW_MAX_CDB_LEN;
-
- /* Luns and channels aren't supported by adapter */
- host->max_lun = 0;
- host->max_channel = 0;
-
- /* Register the card with the kernel SCSI layer */
- retval = scsi_add_host(host, &pdev->dev);
- if (retval) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x27, "scsi add host failed");
- goto out_release_mem_region;
- }
-
- pci_set_drvdata(pdev, host);
-
- printk(KERN_WARNING "3w-9xxx: scsi%d: Found a 3ware 9000 Storage Controller at 0x%x, IRQ: %d.\n",
- host->host_no, mem_addr, pdev->irq);
- printk(KERN_WARNING "3w-9xxx: scsi%d: Firmware %s, BIOS %s, Ports: %d.\n",
- host->host_no,
- (char *)twa_get_param(tw_dev, 0, TW_VERSION_TABLE,
- TW_PARAM_FWVER, TW_PARAM_FWVER_LENGTH),
- (char *)twa_get_param(tw_dev, 1, TW_VERSION_TABLE,
- TW_PARAM_BIOSVER, TW_PARAM_BIOSVER_LENGTH),
- *(int *)twa_get_param(tw_dev, 2, TW_INFORMATION_TABLE,
- TW_PARAM_PORTCOUNT, TW_PARAM_PORTCOUNT_LENGTH));
-
- /* Now setup the interrupt handler */
- retval = request_irq(pdev->irq, twa_interrupt, SA_SHIRQ, "3w-9xxx", tw_dev);
- if (retval) {
- TW_PRINTK(tw_dev->host, TW_DRIVER, 0x30, "Error requesting IRQ");
- goto out_remove_host;
- }
-
- twa_device_extension_list[twa_device_extension_count] = tw_dev;
- twa_device_extension_count++;
-
- /* Re-enable interrupts on the card */
- TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
-
- /* Finally, scan the host */
- scsi_scan_host(host);
-
- if (twa_major == -1) {
- if ((twa_major = register_chrdev (0, "twa", &twa_fops)) < 0)
- TW_PRINTK(host, TW_DRIVER, 0x29, "Failed to register character device");
- }
- return 0;
-
-out_remove_host:
- scsi_remove_host(host);
-out_release_mem_region:
- pci_release_regions(pdev);
-out_free_device_extension:
- twa_free_device_extension(tw_dev);
- scsi_host_put(host);
-out_disable_device:
- pci_disable_device(pdev);
-
- return retval;
-} /* End twa_probe() */
-
-/* This function is called to remove a device */
-static void twa_remove(struct pci_dev *pdev)
-{
- struct Scsi_Host *host = pci_get_drvdata(pdev);
- TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
-
- scsi_remove_host(tw_dev->host);
-
- __twa_shutdown(tw_dev);
-
- /* Free up the IRQ */
- free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
-
- /* Free up the mem region */
- pci_release_regions(pdev);
-
- /* Free up device extension resources */
- twa_free_device_extension(tw_dev);
-
- /* Unregister character device */
- if (twa_major >= 0) {
- unregister_chrdev(twa_major, "twa");
- twa_major = -1;
- }
-
- scsi_host_put(tw_dev->host);
- pci_disable_device(pdev);
- twa_device_extension_count--;
-} /* End twa_remove() */
-
-/* PCI Devices supported by this driver */
-static struct pci_device_id twa_pci_tbl[] __devinitdata = {
- { PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9000,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- { }
-};
-MODULE_DEVICE_TABLE(pci, twa_pci_tbl);
-
-/* pci_driver initializer */
-static struct pci_driver twa_driver = {
- .name = "3w-9xxx",
- .id_table = twa_pci_tbl,
- .probe = twa_probe,
- .remove = twa_remove,
- .driver = {
- .shutdown = twa_shutdown
- }
-};
-
-/* This function is called on driver initialization */
-static int __init twa_init(void)
-{
- printk(KERN_WARNING "3ware 9000 Storage Controller device driver for Linux v%s.\n", twa_driver_version);
-
- return pci_module_init(&twa_driver);
-} /* End twa_init() */
-
-/* This function is called on driver exit */
-static void __exit twa_exit(void)
-{
- pci_unregister_driver(&twa_driver);
-} /* End twa_exit() */
-
-module_init(twa_init);
-module_exit(twa_exit);
-
+++ /dev/null
-/*
- 3w-9xxx.h -- 3ware 9000 Storage Controller device driver for Linux.
-
- Written By: Adam Radford <linuxraid@amcc.com>
-
- Copyright (C) 2004 Applied Micro Circuits Corporation.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 of the License.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- NO WARRANTY
- THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
- CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
- LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
- MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
- solely responsible for determining the appropriateness of using and
- distributing the Program and assumes all risks associated with its
- exercise of rights under this Agreement, including but not limited to
- the risks and costs of program errors, damage to or loss of data,
- programs or equipment, and unavailability or interruption of operations.
-
- DISCLAIMER OF LIABILITY
- NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
- DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
- HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Bugs/Comments/Suggestions should be mailed to:
- linuxraid@amcc.com
-
- For more information, goto:
- http://www.amcc.com
-*/
-
-#ifndef _3W_9XXX_H
-#define _3W_9XXX_H
-
-/* AEN string type */
-typedef struct TAG_twa_message_type {
- unsigned int code;
- char* text;
-} twa_message_type;
-
-/* AEN strings */
-static twa_message_type twa_aen_table[] = {
- {0x0000, "AEN queue empty"},
- {0x0001, "Controller reset occurred"},
- {0x0002, "Degraded unit detected"},
- {0x0003, "Controller error occured"},
- {0x0004, "Background rebuild failed"},
- {0x0005, "Background rebuild done"},
- {0x0006, "Incomplete unit detected"},
- {0x0007, "Background initialize done"},
- {0x0008, "Unclean shutdown detected"},
- {0x0009, "Drive timeout detected"},
- {0x000A, "Drive error detected"},
- {0x000B, "Rebuild started"},
- {0x000C, "Background initialize started"},
- {0x000D, "Entire logical unit was deleted"},
- {0x000E, "Background initialize failed"},
- {0x000F, "SMART attribute exceeded threshold"},
- {0x0010, "Power supply reported AC under range"},
- {0x0011, "Power supply reported DC out of range"},
- {0x0012, "Power supply reported a malfunction"},
- {0x0013, "Power supply predicted malfunction"},
- {0x0014, "Battery charge is below threshold"},
- {0x0015, "Fan speed is below threshold"},
- {0x0016, "Temperature sensor is above threshold"},
- {0x0017, "Power supply was removed"},
- {0x0018, "Power supply was inserted"},
- {0x0019, "Drive was removed from a bay"},
- {0x001A, "Drive was inserted into a bay"},
- {0x001B, "Drive bay cover door was opened"},
- {0x001C, "Drive bay cover door was closed"},
- {0x001D, "Product case was opened"},
- {0x0020, "Prepare for shutdown (power-off)"},
- {0x0021, "Downgrade UDMA mode to lower speed"},
- {0x0022, "Upgrade UDMA mode to higher speed"},
- {0x0023, "Sector repair completed"},
- {0x0024, "Sbuf memory test failed"},
- {0x0025, "Error flushing cached write data to array"},
- {0x0026, "Drive reported data ECC error"},
- {0x0027, "DCB has checksum error"},
- {0x0028, "DCB version is unsupported"},
- {0x0029, "Background verify started"},
- {0x002A, "Background verify failed"},
- {0x002B, "Background verify done"},
- {0x002C, "Bad sector overwritten during rebuild"},
- {0x002D, "Background rebuild error on source drive"},
- {0x002E, "Replace failed because replacement drive too small"},
- {0x002F, "Verify failed because array was never initialized"},
- {0x0030, "Unsupported ATA drive"},
- {0x0031, "Synchronize host/controller time"},
- {0x0032, "Spare capacity is inadequate for some units"},
- {0x0033, "Background migration started"},
- {0x0034, "Background migration failed"},
- {0x0035, "Background migration done"},
- {0x0036, "Verify detected and fixed data/parity mismatch"},
- {0x0037, "SO-DIMM incompatible"},
- {0x0038, "SO-DIMM not detected"},
- {0x0039, "Corrected Sbuf ECC error"},
- {0x003A, "Drive power on reset detected"},
- {0x003B, "Background rebuild paused"},
- {0x003C, "Background initialize paused"},
- {0x003D, "Background verify paused"},
- {0x003E, "Background migration paused"},
- {0x003F, "Corrupt flash file system detected"},
- {0x0040, "Flash file system repaired"},
- {0x0041, "Unit number assignments were lost"},
- {0x0042, "Error during read of primary DCB"},
- {0x0043, "Latent error found in backup DCB"},
- {0x00FC, "Recovered/finished array membership update"},
- {0x00FD, "Handler lockup"},
- {0x00FE, "Retrying PCI transfer"},
- {0x00FF, "AEN queue is full"},
- {0xFFFFFFFF, (char*) 0}
-};
-
-/* AEN severity table */
-static char *twa_aen_severity_table[] =
-{
- "None", "ERROR", "WARNING", "INFO", "DEBUG", (char*) 0
-};
-
-/* Error strings */
-static twa_message_type twa_error_table[] = {
- {0x0100, "SGL entry contains zero data"},
- {0x0101, "Invalid command opcode"},
- {0x0102, "SGL entry has unaligned address"},
- {0x0103, "SGL size does not match command"},
- {0x0104, "SGL entry has illegal length"},
- {0x0105, "Command packet is not aligned"},
- {0x0106, "Invalid request ID"},
- {0x0107, "Duplicate request ID"},
- {0x0108, "ID not locked"},
- {0x0109, "LBA out of range"},
- {0x010A, "Logical unit not supported"},
- {0x010B, "Parameter table does not exist"},
- {0x010C, "Parameter index does not exist"},
- {0x010D, "Invalid field in CDB"},
- {0x010E, "Specified port has invalid drive"},
- {0x010F, "Parameter item size mismatch"},
- {0x0110, "Failed memory allocation"},
- {0x0111, "Memory request too large"},
- {0x0112, "Out of memory segments"},
- {0x0113, "Invalid address to deallocate"},
- {0x0114, "Out of memory"},
- {0x0115, "Out of heap"},
- {0x0120, "Double degrade"},
- {0x0121, "Drive not degraded"},
- {0x0122, "Reconstruct error"},
- {0x0123, "Replace not accepted"},
- {0x0124, "Replace drive capacity too small"},
- {0x0125, "Sector count not allowed"},
- {0x0126, "No spares left"},
- {0x0127, "Reconstruct error"},
- {0x0128, "Unit is offline"},
- {0x0129, "Cannot update status to DCB"},
- {0x0130, "Invalid stripe handle"},
- {0x0131, "Handle that was not locked"},
- {0x0132, "Handle that was not empty"},
- {0x0133, "Handle has different owner"},
- {0x0140, "IPR has parent"},
- {0x0150, "Illegal Pbuf address alignment"},
- {0x0151, "Illegal Pbuf transfer length"},
- {0x0152, "Illegal Sbuf address alignment"},
- {0x0153, "Illegal Sbuf transfer length"},
- {0x0160, "Command packet too large"},
- {0x0161, "SGL exceeds maximum length"},
- {0x0162, "SGL has too many entries"},
- {0x0170, "Insufficient resources for rebuilder"},
- {0x0171, "Verify error (data != parity)"},
- {0x0180, "Requested segment not in directory of this DCB"},
- {0x0181, "DCB segment has unsupported version"},
- {0x0182, "DCB segment has checksum error"},
- {0x0183, "DCB support (settings) segment invalid"},
- {0x0184, "DCB UDB (unit descriptor block) segment invalid"},
- {0x0185, "DCB GUID (globally unique identifier) segment invalid"},
- {0x01A0, "Could not clear Sbuf"},
- {0x01C0, "Flash identify failed"},
- {0x01C1, "Flash out of bounds"},
- {0x01C2, "Flash verify error"},
- {0x01C3, "Flash file object not found"},
- {0x01C4, "Flash file already present"},
- {0x01C5, "Flash file system full"},
- {0x01C6, "Flash file not present"},
- {0x01C7, "Flash file size error"},
- {0x01C8, "Bad flash file checksum"},
- {0x01CA, "Corrupt flash file system detected"},
- {0x01D0, "Invalid field in parameter list"},
- {0x01D1, "Parameter list length error"},
- {0x01D2, "Parameter item is not changeable"},
- {0x01D3, "Parameter item is not saveable"},
- {0x0200, "UDMA CRC error"},
- {0x0201, "Internal CRC error"},
- {0x0202, "Data ECC error"},
- {0x0203, "ADP level 1 error"},
- {0x0204, "Port timeout"},
- {0x0205, "Drive power on reset"},
- {0x0206, "ADP level 2 error"},
- {0x0207, "Soft reset failed"},
- {0x0208, "Drive not ready"},
- {0x0209, "Unclassified port error"},
- {0x020A, "Drive aborted command"},
- {0x0210, "Internal CRC error"},
- {0x0211, "PCI abort error"},
- {0x0212, "PCI parity error"},
- {0x0213, "Port handler error"},
- {0x0214, "Token interrupt count error"},
- {0x0215, "Timeout waiting for PCI transfer"},
- {0x0216, "Corrected buffer ECC"},
- {0x0217, "Uncorrected buffer ECC"},
- {0x0230, "Unsupported command during flash recovery"},
- {0x0231, "Next image buffer expected"},
- {0x0232, "Binary image architecture incompatible"},
- {0x0233, "Binary image has no signature"},
- {0x0234, "Binary image has bad checksum"},
- {0x0235, "Image downloaded overflowed buffer"},
- {0x0240, "I2C device not found"},
- {0x0241, "I2C transaction aborted"},
- {0x0242, "SO-DIMM parameter(s) incompatible using defaults"},
- {0x0243, "SO-DIMM unsupported"},
- {0x0248, "SPI transfer status error"},
- {0x0249, "SPI transfer timeout error"},
- {0x0250, "Invalid unit descriptor size in CreateUnit"},
- {0x0251, "Unit descriptor size exceeds data buffer in CreateUnit"},
- {0x0252, "Invalid value in CreateUnit descriptor"},
- {0x0253, "Inadequate disk space to support descriptor in CreateUnit"},
- {0x0254, "Unable to create data channel for this unit descriptor"},
- {0x0255, "CreateUnit descriptor specifies a drive already in use"},
- {0x0256, "Unable to write configuration to all disks during CreateUnit"},
- {0x0257, "CreateUnit does not support this descriptor version"},
- {0x0258, "Invalid subunit for RAID 0 or 5 in CreateUnit"},
- {0x0259, "Too many descriptors in CreateUnit"},
- {0x025A, "Invalid configuration specified in CreateUnit descriptor"},
- {0x025B, "Invalid LBA offset specified in CreateUnit descriptor"},
- {0x025C, "Invalid stripelet size specified in CreateUnit descriptor"},
- {0x0260, "SMART attribute exceeded threshold"},
- {0xFFFFFFFF, (char*) 0}
-};
-
-/* Control register bit definitions */
-#define TW_CONTROL_CLEAR_HOST_INTERRUPT 0x00080000
-#define TW_CONTROL_CLEAR_ATTENTION_INTERRUPT 0x00040000
-#define TW_CONTROL_MASK_COMMAND_INTERRUPT 0x00020000
-#define TW_CONTROL_MASK_RESPONSE_INTERRUPT 0x00010000
-#define TW_CONTROL_UNMASK_COMMAND_INTERRUPT 0x00008000
-#define TW_CONTROL_UNMASK_RESPONSE_INTERRUPT 0x00004000
-#define TW_CONTROL_CLEAR_ERROR_STATUS 0x00000200
-#define TW_CONTROL_ISSUE_SOFT_RESET 0x00000100
-#define TW_CONTROL_ENABLE_INTERRUPTS 0x00000080
-#define TW_CONTROL_DISABLE_INTERRUPTS 0x00000040
-#define TW_CONTROL_ISSUE_HOST_INTERRUPT 0x00000020
-#define TW_CONTROL_CLEAR_PARITY_ERROR 0x00800000
-#define TW_CONTROL_CLEAR_QUEUE_ERROR 0x00400000
-#define TW_CONTROL_CLEAR_PCI_ABORT 0x00100000
-#define TW_CONTROL_CLEAR_SBUF_WRITE_ERROR 0x00000008
-
-/* Status register bit definitions */
-#define TW_STATUS_MAJOR_VERSION_MASK 0xF0000000
-#define TW_STATUS_MINOR_VERSION_MASK 0x0F000000
-#define TW_STATUS_PCI_PARITY_ERROR 0x00800000
-#define TW_STATUS_QUEUE_ERROR 0x00400000
-#define TW_STATUS_MICROCONTROLLER_ERROR 0x00200000
-#define TW_STATUS_PCI_ABORT 0x00100000
-#define TW_STATUS_HOST_INTERRUPT 0x00080000
-#define TW_STATUS_ATTENTION_INTERRUPT 0x00040000
-#define TW_STATUS_COMMAND_INTERRUPT 0x00020000
-#define TW_STATUS_RESPONSE_INTERRUPT 0x00010000
-#define TW_STATUS_COMMAND_QUEUE_FULL 0x00008000
-#define TW_STATUS_RESPONSE_QUEUE_EMPTY 0x00004000
-#define TW_STATUS_MICROCONTROLLER_READY 0x00002000
-#define TW_STATUS_COMMAND_QUEUE_EMPTY 0x00001000
-#define TW_STATUS_EXPECTED_BITS 0x00002000
-#define TW_STATUS_UNEXPECTED_BITS 0x00F00008
-#define TW_STATUS_SBUF_WRITE_ERROR 0x00000008
-#define TW_STATUS_VALID_INTERRUPT 0x00DF0008
-
-/* RESPONSE QUEUE BIT DEFINITIONS */
-#define TW_RESPONSE_ID_MASK 0x00000FF0
-
-/* PCI related defines */
-#define TW_DEVICE_NAME "3w-9xxx"
-#define TW_NUMDEVICES 1
-#define TW_PCI_CLEAR_PARITY_ERRORS 0xc100
-#define TW_PCI_CLEAR_PCI_ABORT 0x2000
-
-/* Command packet opcodes used by the driver */
-#define TW_OP_INIT_CONNECTION 0x1
-#define TW_OP_GET_PARAM 0x12
-#define TW_OP_SET_PARAM 0x13
-#define TW_OP_EXECUTE_SCSI 0x10
-#define TW_OP_DOWNLOAD_FIRMWARE 0x16
-#define TW_OP_RESET 0x1C
-
-/* Asynchronous Event Notification (AEN) codes used by the driver */
-#define TW_AEN_QUEUE_EMPTY 0x0000
-#define TW_AEN_SOFT_RESET 0x0001
-#define TW_AEN_SYNC_TIME_WITH_HOST 0x031
-#define TW_AEN_SEVERITY_ERROR 0x1
-#define TW_AEN_SEVERITY_DEBUG 0x4
-#define TW_AEN_NOT_RETRIEVED 0x1
-#define TW_AEN_RETRIEVED 0x2
-
-/* Command state defines */
-#define TW_S_INITIAL 0x1 /* Initial state */
-#define TW_S_STARTED 0x2 /* Id in use */
-#define TW_S_POSTED 0x4 /* Posted to the controller */
-#define TW_S_PENDING 0x8 /* Waiting to be posted in isr */
-#define TW_S_COMPLETED 0x10 /* Completed by isr */
-#define TW_S_FINISHED 0x20 /* I/O completely done */
-
-/* Compatibility defines */
-#define TW_9000_ARCH_ID 0x5
-#define TW_CURRENT_FW_SRL 24
-#define TW_CURRENT_FW_BUILD 5
-#define TW_CURRENT_FW_BRANCH 1
-
-/* Phase defines */
-#define TW_PHASE_INITIAL 0
-#define TW_PHASE_SINGLE 1
-#define TW_PHASE_SGLIST 2
-
-/* Misc defines */
-#define TW_SECTOR_SIZE 512
-#define TW_ALIGNMENT_9000 4 /* 4 bytes */
-#define TW_ALIGNMENT_9000_SGL 0x3
-#define TW_MAX_UNITS 16
-#define TW_INIT_MESSAGE_CREDITS 0x100
-#define TW_INIT_COMMAND_PACKET_SIZE 0x3
-#define TW_INIT_COMMAND_PACKET_SIZE_EXTENDED 0x6
-#define TW_EXTENDED_INIT_CONNECT 0x2
-#define TW_BUNDLED_FW_SAFE_TO_FLASH 0x4
-#define TW_CTLR_FW_RECOMMENDS_FLASH 0x8
-#define TW_CTLR_FW_COMPATIBLE 0x2
-#define TW_BASE_FW_SRL 0x17
-#define TW_BASE_FW_BRANCH 0
-#define TW_BASE_FW_BUILD 1
-#if BITS_PER_LONG > 32
-#define TW_APACHE_MAX_SGL_LENGTH 72
-#define TW_ESCALADE_MAX_SGL_LENGTH 41
-#define TW_APACHE_CMD_PKT_SIZE 5
-#else
-#define TW_APACHE_MAX_SGL_LENGTH 109
-#define TW_ESCALADE_MAX_SGL_LENGTH 62
-#define TW_APACHE_CMD_PKT_SIZE 4
-#endif
-#define TW_ATA_PASS_SGL_MAX 60
-#define TW_Q_LENGTH 256
-#define TW_Q_START 0
-#define TW_MAX_SLOT 32
-#define TW_MAX_RESET_TRIES 2
-#define TW_MAX_CMDS_PER_LUN 254
-#define TW_MAX_RESPONSE_DRAIN 256
-#define TW_MAX_AEN_DRAIN 40
-#define TW_IN_IOCTL 2
-#define TW_IN_CHRDEV_IOCTL 3
-#define TW_IN_ATTENTION_LOOP 4
-#define TW_MAX_SECTORS 256
-#define TW_AEN_WAIT_TIME 1000
-#define TW_IOCTL_WAIT_TIME (1 * HZ) /* 1 second */
-#define TW_MAX_CDB_LEN 16
-#define TW_ISR_DONT_COMPLETE 2
-#define TW_ISR_DONT_RESULT 3
-#define TW_IOCTL_CHRDEV_TIMEOUT 60 /* 60 seconds */
-#define TW_IOCTL_CHRDEV_FREE -1
-#define TW_COMMAND_OFFSET 128 /* 128 bytes */
-#define TW_VERSION_TABLE 0x0402
-#define TW_TIMEKEEP_TABLE 0x040A
-#define TW_INFORMATION_TABLE 0x0403
-#define TW_PARAM_FWVER 3
-#define TW_PARAM_FWVER_LENGTH 16
-#define TW_PARAM_BIOSVER 4
-#define TW_PARAM_BIOSVER_LENGTH 16
-#define TW_PARAM_PORTCOUNT 3
-#define TW_PARAM_PORTCOUNT_LENGTH 1
-#define TW_MIN_SGL_LENGTH 0x200 /* 512 bytes */
-#define TW_MAX_SENSE_LENGTH 256
-#define TW_EVENT_SOURCE_AEN 0x1000
-#define TW_EVENT_SOURCE_COMMAND 0x1001
-#define TW_EVENT_SOURCE_PCHIP 0x1002
-#define TW_EVENT_SOURCE_DRIVER 0x1003
-#define TW_IOCTL_GET_COMPATIBILITY_INFO 0x101
-#define TW_IOCTL_GET_LAST_EVENT 0x102
-#define TW_IOCTL_GET_FIRST_EVENT 0x103
-#define TW_IOCTL_GET_NEXT_EVENT 0x104
-#define TW_IOCTL_GET_PREVIOUS_EVENT 0x105
-#define TW_IOCTL_GET_LOCK 0x106
-#define TW_IOCTL_RELEASE_LOCK 0x107
-#define TW_IOCTL_FIRMWARE_PASS_THROUGH 0x108
-#define TW_IOCTL_ERROR_STATUS_NOT_LOCKED 0x1001 // Not locked
-#define TW_IOCTL_ERROR_STATUS_LOCKED 0x1002 // Already locked
-#define TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS 0x1003 // No more events
-#define TW_IOCTL_ERROR_STATUS_AEN_CLOBBER 0x1004 // AEN clobber occurred
-#define TW_IOCTL_ERROR_OS_EFAULT -EFAULT // Bad address
-#define TW_IOCTL_ERROR_OS_EINTR -EINTR // Interrupted system call
-#define TW_IOCTL_ERROR_OS_EINVAL -EINVAL // Invalid argument
-#define TW_IOCTL_ERROR_OS_ENOMEM -ENOMEM // Out of memory
-#define TW_IOCTL_ERROR_OS_ERESTARTSYS -ERESTARTSYS // Restart system call
-#define TW_IOCTL_ERROR_OS_EIO -EIO // I/O error
-#define TW_IOCTL_ERROR_OS_ENOTTY -ENOTTY // Not a typewriter
-#define TW_IOCTL_ERROR_OS_ENODEV -ENODEV // No such device
-#define TW_ALLOCATION_LENGTH 128
-#define TW_SENSE_DATA_LENGTH 18
-#define TW_STATUS_CHECK_CONDITION 2
-#define TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED 0x10a
-#define TW_ERROR_UNIT_OFFLINE 0x128
-#define TW_MESSAGE_SOURCE_CONTROLLER_ERROR 3
-#define TW_MESSAGE_SOURCE_CONTROLLER_EVENT 4
-#define TW_MESSAGE_SOURCE_LINUX_DRIVER 6
-#define TW_DRIVER TW_MESSAGE_SOURCE_LINUX_DRIVER
-#define TW_MESSAGE_SOURCE_LINUX_OS 9
-#define TW_OS TW_MESSAGE_SOURCE_LINUX_OS
-#if BITS_PER_LONG > 32
-#define TW_COMMAND_SIZE 5
-#define TW_DMA_MASK DMA_64BIT_MASK
-#else
-#define TW_COMMAND_SIZE 4
-#define TW_DMA_MASK DMA_32BIT_MASK
-#endif
-#ifndef PCI_DEVICE_ID_3WARE_9000
-#define PCI_DEVICE_ID_3WARE_9000 0x1002
-#endif
-
-/* Bitmask macros to eliminate bitfields */
-
-/* opcode: 5, reserved: 3 */
-#define TW_OPRES_IN(x,y) ((x << 5) | (y & 0x1f))
-#define TW_OP_OUT(x) (x & 0x1f)
-
-/* opcode: 5, sgloffset: 3 */
-#define TW_OPSGL_IN(x,y) ((x << 5) | (y & 0x1f))
-#define TW_SGL_OUT(x) ((x >> 5) & 0x7)
-
-/* severity: 3, reserved: 5 */
-#define TW_SEV_OUT(x) (x & 0x7)
-
-/* reserved_1: 4, response_id: 8, reserved_2: 20 */
-#define TW_RESID_OUT(x) ((x >> 4) & 0xff)
-
-/* Macros */
-#define TW_CONTROL_REG_ADDR(x) (x->base_addr)
-#define TW_STATUS_REG_ADDR(x) ((unsigned char *)x->base_addr + 0x4)
-#if BITS_PER_LONG > 32
-#define TW_COMMAND_QUEUE_REG_ADDR(x) ((unsigned char *)x->base_addr + 0x20)
-#else
-#define TW_COMMAND_QUEUE_REG_ADDR(x) ((unsigned char *)x->base_addr + 0x8)
-#endif
-#define TW_RESPONSE_QUEUE_REG_ADDR(x) ((unsigned char *)x->base_addr + 0xC)
-#define TW_CLEAR_ALL_INTERRUPTS(x) (writel(TW_STATUS_VALID_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
-#define TW_CLEAR_ATTENTION_INTERRUPT(x) (writel(TW_CONTROL_CLEAR_ATTENTION_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
-#define TW_CLEAR_HOST_INTERRUPT(x) (writel(TW_CONTROL_CLEAR_HOST_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
-#define TW_DISABLE_INTERRUPTS(x) (writel(TW_CONTROL_DISABLE_INTERRUPTS, TW_CONTROL_REG_ADDR(x)))
-#define TW_ENABLE_AND_CLEAR_INTERRUPTS(x) (writel(TW_CONTROL_CLEAR_ATTENTION_INTERRUPT | TW_CONTROL_UNMASK_RESPONSE_INTERRUPT | TW_CONTROL_ENABLE_INTERRUPTS, TW_CONTROL_REG_ADDR(x)))
-#define TW_MASK_COMMAND_INTERRUPT(x) (writel(TW_CONTROL_MASK_COMMAND_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
-#define TW_UNMASK_COMMAND_INTERRUPT(x) (writel(TW_CONTROL_UNMASK_COMMAND_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
-#define TW_SOFT_RESET(x) (writel(TW_CONTROL_ISSUE_SOFT_RESET | \
- TW_CONTROL_CLEAR_HOST_INTERRUPT | \
- TW_CONTROL_CLEAR_ATTENTION_INTERRUPT | \
- TW_CONTROL_MASK_COMMAND_INTERRUPT | \
- TW_CONTROL_MASK_RESPONSE_INTERRUPT | \
- TW_CONTROL_CLEAR_ERROR_STATUS | \
- TW_CONTROL_DISABLE_INTERRUPTS, TW_CONTROL_REG_ADDR(x)))
-#define TW_PRINTK(h,a,b,c) { \
-if (h) \
-printk(KERN_WARNING "3w-9xxx: scsi%d: ERROR: (0x%02X:0x%04X): %s.\n",h->host_no,a,b,c); \
-else \
-printk(KERN_WARNING "3w-9xxx: ERROR: (0x%02X:0x%04X): %s.\n",a,b,c); \
-}
-
-#pragma pack(1)
-
-/* Scatter Gather List Entry */
-typedef struct TAG_TW_SG_Entry {
- unsigned long address;
- u32 length;
-} TW_SG_Entry;
-
-/* Command Packet */
-typedef struct TW_Command {
- unsigned char opcode__sgloffset;
- unsigned char size;
- unsigned char request_id;
- unsigned char unit__hostid;
- /* Second DWORD */
- unsigned char status;
- unsigned char flags;
- union {
- unsigned short block_count;
- unsigned short parameter_count;
- } byte6_offset;
- union {
- struct {
- u32 lba;
- TW_SG_Entry sgl[TW_ESCALADE_MAX_SGL_LENGTH];
-#if BITS_PER_LONG > 32
- u32 padding[2]; /* pad to 512 bytes */
-#else
- u32 padding;
-#endif
- } io;
- struct {
- TW_SG_Entry sgl[TW_ESCALADE_MAX_SGL_LENGTH];
-#if BITS_PER_LONG > 32
- u32 padding[3];
-#else
- u32 padding[2];
-#endif
- } param;
- } byte8_offset;
-} TW_Command;
-
-/* Scatter gather element for 9000+ controllers */
-typedef struct TAG_TW_SG_Apache {
- unsigned long address;
- u32 length;
-} TW_SG_Apache;
-
-/* Command Packet for 9000+ controllers */
-typedef struct TAG_TW_Command_Apache {
- unsigned char opcode__reserved;
- unsigned char unit;
- unsigned short request_id;
- unsigned char status;
- unsigned char sgl_offset;
- unsigned short sgl_entries;
- unsigned char cdb[16];
- TW_SG_Apache sg_list[TW_APACHE_MAX_SGL_LENGTH];
-#if BITS_PER_LONG > 32
- unsigned char padding[8];
-#endif
-} TW_Command_Apache;
-
-/* New command packet header */
-typedef struct TAG_TW_Command_Apache_Header {
- unsigned char sense_data[TW_SENSE_DATA_LENGTH];
- struct {
- char reserved[4];
- unsigned short error;
- unsigned char padding;
- unsigned char severity__reserved;
- } status_block;
- unsigned char err_specific_desc[98];
- struct {
- unsigned char size_header;
- unsigned short reserved;
- unsigned char size_sense;
- } header_desc;
-} TW_Command_Apache_Header;
-
-/* This struct is a union of the 2 command packets */
-typedef struct TAG_TW_Command_Full {
- TW_Command_Apache_Header header;
- union {
- TW_Command oldcommand;
- TW_Command_Apache newcommand;
- } command;
-} TW_Command_Full;
-
-/* Initconnection structure */
-typedef struct TAG_TW_Initconnect {
- unsigned char opcode__reserved;
- unsigned char size;
- unsigned char request_id;
- unsigned char res2;
- unsigned char status;
- unsigned char flags;
- unsigned short message_credits;
- u32 features;
- unsigned short fw_srl;
- unsigned short fw_arch_id;
- unsigned short fw_branch;
- unsigned short fw_build;
- u32 result;
-} TW_Initconnect;
-
-/* Event info structure */
-typedef struct TAG_TW_Event
-{
- unsigned int sequence_id;
- unsigned int time_stamp_sec;
- unsigned short aen_code;
- unsigned char severity;
- unsigned char retrieved;
- unsigned char repeat_count;
- unsigned char parameter_len;
- unsigned char parameter_data[98];
-} TW_Event;
-
-typedef struct TAG_TW_Ioctl_Driver_Command {
- unsigned int control_code;
- unsigned int status;
- unsigned int unique_id;
- unsigned int sequence_id;
- unsigned int os_specific;
- unsigned int buffer_length;
-} TW_Ioctl_Driver_Command;
-
-typedef struct TAG_TW_Ioctl_Apache {
- TW_Ioctl_Driver_Command driver_command;
- char padding[488];
- TW_Command_Full firmware_command;
- char data_buffer[1];
-} TW_Ioctl_Buf_Apache;
-
-/* Lock structure for ioctl get/release lock */
-typedef struct TAG_TW_Lock {
- unsigned long timeout_msec;
- unsigned long time_remaining_msec;
- unsigned long force_flag;
-} TW_Lock;
-
-/* GetParam descriptor */
-typedef struct {
- unsigned short table_id;
- unsigned short parameter_id;
- unsigned short parameter_size_bytes;
- unsigned short actual_parameter_size_bytes;
- unsigned char data[1];
-} TW_Param_Apache, *PTW_Param_Apache;
-
-/* Response queue */
-typedef union TAG_TW_Response_Queue {
- u32 response_id;
- u32 value;
-} TW_Response_Queue;
-
-typedef struct TAG_TW_Info {
- char *buffer;
- int length;
- int offset;
- int position;
-} TW_Info;
-
-/* Compatibility information structure */
-typedef struct TAG_TW_Compatibility_Info
-{
- char driver_version[32];
- unsigned short working_srl;
- unsigned short working_branch;
- unsigned short working_build;
-} TW_Compatibility_Info;
-
-typedef struct TAG_TW_Device_Extension {
- u32 *base_addr;
- unsigned long *generic_buffer_virt[TW_Q_LENGTH];
- unsigned long generic_buffer_phys[TW_Q_LENGTH];
- TW_Command_Full *command_packet_virt[TW_Q_LENGTH];
- unsigned long command_packet_phys[TW_Q_LENGTH];
- struct pci_dev *tw_pci_dev;
- struct scsi_cmnd *srb[TW_Q_LENGTH];
- unsigned char free_queue[TW_Q_LENGTH];
- unsigned char free_head;
- unsigned char free_tail;
- unsigned char pending_queue[TW_Q_LENGTH];
- unsigned char pending_head;
- unsigned char pending_tail;
- int state[TW_Q_LENGTH];
- unsigned int posted_request_count;
- unsigned int max_posted_request_count;
- unsigned int pending_request_count;
- unsigned int max_pending_request_count;
- unsigned int max_sgl_entries;
- unsigned int sgl_entries;
- unsigned int num_aborts;
- unsigned int num_resets;
- unsigned int sector_count;
- unsigned int max_sector_count;
- unsigned int aen_count;
- struct Scsi_Host *host;
- long flags;
- int reset_print;
- TW_Event *event_queue[TW_Q_LENGTH];
- unsigned char error_index;
- unsigned char event_queue_wrapped;
- unsigned int error_sequence_id;
- int ioctl_sem_lock;
- u32 ioctl_msec;
- int chrdev_request_id;
- wait_queue_head_t ioctl_wqueue;
- struct semaphore ioctl_sem;
- char aen_clobber;
- unsigned short working_srl;
- unsigned short working_branch;
- unsigned short working_build;
-} TW_Device_Extension;
-
-#pragma pack()
-
-#endif /* _3W_9XXX_H */
-
+++ /dev/null
-/*
- * fdomain.c -- Future Domain TMC-16x0 SCSI driver
- * Author: Rickard E. Faith, faith@cs.unc.edu
- * Copyright 1992-1996, 1998 Rickard E. Faith (faith@acm.org)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-extern struct scsi_host_template fdomain_driver_template;
-extern int fdomain_setup(char *str);
-extern struct Scsi_Host *__fdomain_16x0_detect(struct scsi_host_template *tpnt );
-extern int fdomain_16x0_bus_reset(struct scsi_cmnd *SCpnt);
+++ /dev/null
-#define PCMCIA 1
-#include "qlogicfas.c"
+++ /dev/null
-/* to be used by qlogicfas and qlogic_cs */
-#ifndef __QLOGICFAS_H
-#define __QLOGICFAS_H
-
-/*----------------------------------------------------------------*/
-/* Configuration */
-
-/* Set the following to 2 to use normal interrupt (active high/totempole-
- tristate), otherwise use 0 (REQUIRED FOR PCMCIA) for active low, open
- drain */
-
-#define QL_INT_ACTIVE_HIGH 2
-
-/* Set the following to max out the speed of the PIO PseudoDMA transfers,
- again, 0 tends to be slower, but more stable. */
-
-#define QL_TURBO_PDMA 1
-
-/* This should be 1 to enable parity detection */
-
-#define QL_ENABLE_PARITY 1
-
-/* This will reset all devices when the driver is initialized (during bootup).
- The other linux drivers don't do this, but the DOS drivers do, and after
- using DOS or some kind of crash or lockup this will bring things back
- without requiring a cold boot. It does take some time to recover from a
- reset, so it is slower, and I have seen timeouts so that devices weren't
- recognized when this was set. */
-
-#define QL_RESET_AT_START 0
-
-/* crystal frequency in megahertz (for offset 5 and 9)
- Please set this for your card. Most Qlogic cards are 40 Mhz. The
- Control Concepts ISA (not VLB) is 24 Mhz */
-
-#define XTALFREQ 40
-
-/**********/
-/* DANGER! modify these at your own risk */
-/* SLOWCABLE can usually be reset to zero if you have a clean setup and
- proper termination. The rest are for synchronous transfers and other
- advanced features if your device can transfer faster than 5Mb/sec.
- If you are really curious, email me for a quick howto until I have
- something official */
-/**********/
-
-/*****/
-/* config register 1 (offset 8) options */
-/* This needs to be set to 1 if your cabling is long or noisy */
-#define SLOWCABLE 1
-
-/*****/
-/* offset 0xc */
-/* This will set fast (10Mhz) synchronous timing when set to 1
- For this to have an effect, FASTCLK must also be 1 */
-#define FASTSCSI 0
-
-/* This when set to 1 will set a faster sync transfer rate */
-#define FASTCLK 0 /*(XTALFREQ>25?1:0)*/
-
-/*****/
-/* offset 6 */
-/* This is the sync transfer divisor, XTALFREQ/X will be the maximum
- achievable data rate (assuming the rest of the system is capable
- and set properly) */
-#define SYNCXFRPD 5 /*(XTALFREQ/5)*/
-
-/*****/
-/* offset 7 */
-/* This is the count of how many synchronous transfers can take place
- i.e. how many reqs can occur before an ack is given.
- The maximum value for this is 15, the upper bits can modify
- REQ/ACK assertion and deassertion during synchronous transfers
- If this is 0, the bus will only transfer asynchronously */
-#define SYNCOFFST 0
-/* for the curious, bits 7&6 control the deassertion delay in 1/2 cycles
- of the 40Mhz clock. If FASTCLK is 1, specifying 01 (1/2) will
- cause the deassertion to be early by 1/2 clock. Bits 5&4 control
- the assertion delay, also in 1/2 clocks (FASTCLK is ignored here). */
-
-/*----------------------------------------------------------------*/
-#ifdef PCMCIA
-#undef QL_INT_ACTIVE_HIGH
-#define QL_INT_ACTIVE_HIGH 0
-#endif
-
-struct qlogicfas_priv;
-typedef struct qlogicfas_priv *qlogicfas_priv_t;
-struct qlogicfas_priv {
- int qbase; /* Port */
- int qinitid; /* initiator ID */
- int qabort; /* Flag to cause an abort */
- int qlirq; /* IRQ being used */
- char qinfo[80]; /* description */
- Scsi_Cmnd *qlcmd; /* current command being processed */
- struct Scsi_Host *shost; /* pointer back to host */
- qlogicfas_priv_t next; /* next private struct */
-};
-
-extern int qlcfg5;
-extern int qlcfg6;
-extern int qlcfg7;
-extern int qlcfg8;
-extern int qlcfg9;
-extern int qlcfgc;
-
-/* The qlogic card uses two register maps - These macros select which one */
-#define REG0 ( outb( inb( qbase + 0xd ) & 0x7f , qbase + 0xd ), outb( 4 , qbase + 0xd ))
-#define REG1 ( outb( inb( qbase + 0xd ) | 0x80 , qbase + 0xd ), outb( 0xb4 | QL_INT_ACTIVE_HIGH , qbase + 0xd ))
-
-/* following is watchdog timeout in microseconds */
-#define WATCHDOG 5000000
-
-/*----------------------------------------------------------------*/
-/* the following will set the monitor border color (useful to find
- where something crashed or gets stuck at and as a simple profiler) */
-
-#if 0
-#define rtrc(i) {inb(0x3da);outb(0x31,0x3c0);outb((i),0x3c0);}
-#else
-#define rtrc(i) {}
-#endif
-#endif /* __QLOGICFAS_H */
-
+++ /dev/null
-/*
- * sata_nv.c - NVIDIA nForce SATA
- *
- * Copyright 2004 NVIDIA Corp. All rights reserved.
- * Copyright 2004 Andrew Chew
- *
- * The contents of this file are subject to the Open
- * Software License version 1.1 that can be found at
- * http://www.opensource.org/licenses/osl-1.1.txt and is included herein
- * by reference.
- *
- * Alternatively, the contents of this file may be used under the terms
- * of the GNU General Public License version 2 (the "GPL") as distributed
- * in the kernel source COPYING file, in which case the provisions of
- * the GPL are applicable instead of the above. If you wish to allow
- * the use of your version of this file only under the terms of the
- * GPL and not to allow others to use your version of this file under
- * the OSL, indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by the GPL.
- * If you do not delete the provisions above, a recipient may use your
- * version of this file under either the OSL or the GPL.
- *
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/blkdev.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-#include <linux/libata.h>
-
-#define DRV_NAME "sata_nv"
-#define DRV_VERSION "0.01"
-
-#define NV_PORTS 2
-#define NV_PIO_MASK 0x1f
-#define NV_UDMA_MASK 0x7f
-#define NV_PORT0_BMDMA_REG_OFFSET 0x00
-#define NV_PORT1_BMDMA_REG_OFFSET 0x08
-#define NV_PORT0_SCR_REG_OFFSET 0x00
-#define NV_PORT1_SCR_REG_OFFSET 0x40
-
-#define NV_INT_STATUS 0x10
-#define NV_INT_STATUS_PDEV_INT 0x01
-#define NV_INT_STATUS_PDEV_PM 0x02
-#define NV_INT_STATUS_PDEV_ADDED 0x04
-#define NV_INT_STATUS_PDEV_REMOVED 0x08
-#define NV_INT_STATUS_SDEV_INT 0x10
-#define NV_INT_STATUS_SDEV_PM 0x20
-#define NV_INT_STATUS_SDEV_ADDED 0x40
-#define NV_INT_STATUS_SDEV_REMOVED 0x80
-#define NV_INT_STATUS_PDEV_HOTPLUG (NV_INT_STATUS_PDEV_ADDED | \
- NV_INT_STATUS_PDEV_REMOVED)
-#define NV_INT_STATUS_SDEV_HOTPLUG (NV_INT_STATUS_SDEV_ADDED | \
- NV_INT_STATUS_SDEV_REMOVED)
-#define NV_INT_STATUS_HOTPLUG (NV_INT_STATUS_PDEV_HOTPLUG | \
- NV_INT_STATUS_SDEV_HOTPLUG)
-
-#define NV_INT_ENABLE 0x11
-#define NV_INT_ENABLE_PDEV_MASK 0x01
-#define NV_INT_ENABLE_PDEV_PM 0x02
-#define NV_INT_ENABLE_PDEV_ADDED 0x04
-#define NV_INT_ENABLE_PDEV_REMOVED 0x08
-#define NV_INT_ENABLE_SDEV_MASK 0x10
-#define NV_INT_ENABLE_SDEV_PM 0x20
-#define NV_INT_ENABLE_SDEV_ADDED 0x40
-#define NV_INT_ENABLE_SDEV_REMOVED 0x80
-#define NV_INT_ENABLE_PDEV_HOTPLUG (NV_INT_ENABLE_PDEV_ADDED | \
- NV_INT_ENABLE_PDEV_REMOVED)
-#define NV_INT_ENABLE_SDEV_HOTPLUG (NV_INT_ENABLE_SDEV_ADDED | \
- NV_INT_ENABLE_SDEV_REMOVED)
-#define NV_INT_ENABLE_HOTPLUG (NV_INT_ENABLE_PDEV_HOTPLUG | \
- NV_INT_ENABLE_SDEV_HOTPLUG)
-
-#define NV_INT_CONFIG 0x12
-#define NV_INT_CONFIG_METHD 0x01 // 0 = INT, 1 = SMI
-
-static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-irqreturn_t nv_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
-static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg);
-static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
-static void nv_host_stop (struct ata_host_set *host_set);
-
-static struct pci_device_id nv_pci_tbl[] = {
- { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA2,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA,
- PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA2,
- PCI_ANY_ID, PCI_ANY_ID, },
- { 0, } /* terminate list */
-};
-
-static struct pci_driver nv_pci_driver = {
- .name = DRV_NAME,
- .id_table = nv_pci_tbl,
- .probe = nv_init_one,
- .remove = ata_pci_remove_one,
-};
-
-static Scsi_Host_Template nv_sht = {
- .module = THIS_MODULE,
- .name = DRV_NAME,
- .queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
- .can_queue = ATA_DEF_QUEUE,
- .this_id = ATA_SHT_THIS_ID,
- .sg_tablesize = ATA_MAX_PRD,
- .max_sectors = ATA_MAX_SECTORS,
- .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
- .emulated = ATA_SHT_EMULATED,
- .use_clustering = ATA_SHT_USE_CLUSTERING,
- .proc_name = DRV_NAME,
- .dma_boundary = ATA_DMA_BOUNDARY,
- .slave_configure = ata_scsi_slave_config,
- .bios_param = ata_std_bios_param,
-};
-
-static struct ata_port_operations nv_ops = {
- .port_disable = ata_port_disable,
- .tf_load = ata_tf_load_pio,
- .tf_read = ata_tf_read_pio,
- .exec_command = ata_exec_command_pio,
- .check_status = ata_check_status_pio,
- .phy_reset = sata_phy_reset,
- .bmdma_setup = ata_bmdma_setup_pio,
- .bmdma_start = ata_bmdma_start_pio,
- .qc_prep = ata_qc_prep,
- .qc_issue = ata_qc_issue_prot,
- .eng_timeout = ata_eng_timeout,
- .irq_handler = nv_interrupt,
- .irq_clear = ata_bmdma_irq_clear,
- .scr_read = nv_scr_read,
- .scr_write = nv_scr_write,
- .port_start = ata_port_start,
- .port_stop = ata_port_stop,
- .host_stop = nv_host_stop,
-};
-
-MODULE_AUTHOR("NVIDIA");
-MODULE_DESCRIPTION("low-level driver for NVIDIA nForce SATA controller");
-MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(pci, nv_pci_tbl);
-
-irqreturn_t nv_interrupt (int irq, void *dev_instance, struct pt_regs *regs)
-{
- struct ata_host_set *host_set = dev_instance;
- unsigned int i;
- unsigned int handled = 0;
- unsigned long flags;
- u8 intr_status;
- u8 intr_enable;
-
- spin_lock_irqsave(&host_set->lock, flags);
-
- for (i = 0; i < host_set->n_ports; i++) {
- struct ata_port *ap;
-
- ap = host_set->ports[i];
- if (ap && (!(ap->flags & ATA_FLAG_PORT_DISABLED))) {
- struct ata_queued_cmd *qc;
-
- qc = ata_qc_from_tag(ap, ap->active_tag);
- if (qc && (!(qc->tf.ctl & ATA_NIEN)))
- handled += ata_host_intr(ap, qc);
- }
-
- intr_status = inb(ap->ioaddr.scr_addr + NV_INT_STATUS);
- intr_enable = inb(ap->ioaddr.scr_addr + NV_INT_ENABLE);
-
- // Clear interrupt status.
- outb(0xff, ap->ioaddr.scr_addr + NV_INT_STATUS);
-
- if (intr_status & NV_INT_STATUS_HOTPLUG) {
- if (intr_status & NV_INT_STATUS_PDEV_ADDED) {
- printk(KERN_WARNING "ata%u: "
- "Primary device added\n", ap->id);
- }
-
- if (intr_status & NV_INT_STATUS_PDEV_REMOVED) {
- printk(KERN_WARNING "ata%u: "
- "Primary device removed\n", ap->id);
- }
-
- if (intr_status & NV_INT_STATUS_SDEV_ADDED) {
- printk(KERN_WARNING "ata%u: "
- "Secondary device added\n", ap->id);
- }
-
- if (intr_status & NV_INT_STATUS_SDEV_REMOVED) {
- printk(KERN_WARNING "ata%u: "
- "Secondary device removed\n", ap->id);
- }
- }
- }
-
- spin_unlock_irqrestore(&host_set->lock, flags);
-
- return IRQ_RETVAL(handled);
-}
-
-static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg)
-{
- if (sc_reg > SCR_CONTROL)
- return 0xffffffffU;
-
- return inl(ap->ioaddr.scr_addr + (sc_reg * 4));
-}
-
-static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
-{
- if (sc_reg > SCR_CONTROL)
- return;
-
- outl(val, ap->ioaddr.scr_addr + (sc_reg * 4));
-}
-
-static void nv_host_stop (struct ata_host_set *host_set)
-{
- int i;
-
- for (i=0; i<host_set->n_ports; i++) {
- u8 intr_mask;
-
- // Disable hotplug event interrupts.
- intr_mask = inb(host_set->ports[i]->ioaddr.scr_addr +
- NV_INT_ENABLE);
- intr_mask &= ~(NV_INT_ENABLE_HOTPLUG);
- outb(intr_mask, host_set->ports[i]->ioaddr.scr_addr +
- NV_INT_ENABLE);
- }
-}
-
-static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- static int printed_version = 0;
- struct ata_probe_ent *probe_ent = NULL;
- int i;
- int rc;
-
- if (!printed_version++)
- printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
-
- rc = pci_enable_device(pdev);
- if (rc)
- return rc;
-
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc)
- goto err_out;
-
- rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
- if (rc)
- goto err_out_regions;
- rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
- if (rc)
- goto err_out_regions;
-
- probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
- if (!probe_ent) {
- rc = -ENOMEM;
- goto err_out_regions;
- }
-
- memset(probe_ent, 0, sizeof(*probe_ent));
- INIT_LIST_HEAD(&probe_ent->node);
-
- probe_ent->pdev = pdev;
- probe_ent->sht = &nv_sht;
- probe_ent->host_flags = ATA_FLAG_SATA |
- ATA_FLAG_SATA_RESET |
- ATA_FLAG_SRST |
- ATA_FLAG_NO_LEGACY;
- probe_ent->port_ops = &nv_ops;
- probe_ent->n_ports = NV_PORTS;
- probe_ent->irq = pdev->irq;
- probe_ent->irq_flags = SA_SHIRQ;
- probe_ent->pio_mask = NV_PIO_MASK;
- probe_ent->udma_mask = NV_UDMA_MASK;
-
- probe_ent->port[0].cmd_addr = pci_resource_start(pdev, 0);
- ata_std_ports(&probe_ent->port[0]);
- probe_ent->port[0].altstatus_addr =
- probe_ent->port[0].ctl_addr =
- pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS;
- probe_ent->port[0].bmdma_addr =
- pci_resource_start(pdev, 4) | NV_PORT0_BMDMA_REG_OFFSET;
- probe_ent->port[0].scr_addr =
- pci_resource_start(pdev, 5) | NV_PORT0_SCR_REG_OFFSET;
-
- probe_ent->port[1].cmd_addr = pci_resource_start(pdev, 2);
- ata_std_ports(&probe_ent->port[1]);
- probe_ent->port[1].altstatus_addr =
- probe_ent->port[1].ctl_addr =
- pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS;
- probe_ent->port[1].bmdma_addr =
- pci_resource_start(pdev, 4) | NV_PORT1_BMDMA_REG_OFFSET;
- probe_ent->port[1].scr_addr =
- pci_resource_start(pdev, 5) | NV_PORT1_SCR_REG_OFFSET;
-
- pci_set_master(pdev);
-
- rc = ata_device_add(probe_ent);
- if (rc != NV_PORTS)
- goto err_out_regions;
-
- // Enable hotplug event interrupts.
- for (i=0; i<probe_ent->n_ports; i++) {
- u8 intr_mask;
-
- outb(NV_INT_STATUS_HOTPLUG, probe_ent->port[i].scr_addr +
- NV_INT_STATUS);
-
- intr_mask = inb(probe_ent->port[i].scr_addr + NV_INT_ENABLE);
- intr_mask |= NV_INT_ENABLE_HOTPLUG;
- outb(intr_mask, probe_ent->port[i].scr_addr + NV_INT_ENABLE);
- }
-
- kfree(probe_ent);
-
- return 0;
-
-err_out_regions:
- pci_release_regions(pdev);
-
-err_out:
- pci_disable_device(pdev);
- return rc;
-}
-
-static int __init nv_init(void)
-{
- return pci_module_init(&nv_pci_driver);
-}
-
-static void __exit nv_exit(void)
-{
- pci_unregister_driver(&nv_pci_driver);
-}
-
-module_init(nv_init);
-module_exit(nv_exit);
+++ /dev/null
-#
-# Makefile for the Motorola 8xx FEC ethernet controller
-#
-
-obj-$(CONFIG_SERIAL_CPM) += cpm_uart.o
-
-# Select the correct platform objects.
-cpm_uart-objs-$(CONFIG_CPM2) += cpm_uart_cpm2.o
-cpm_uart-objs-$(CONFIG_8xx) += cpm_uart_cpm1.o
-
-cpm_uart-objs := cpm_uart_core.o $(cpm_uart-objs-y)
+++ /dev/null
-/*
- * linux/drivers/serial/cpm_uart.h
- *
- * Driver for CPM (SCC/SMC) serial ports
- *
- * Copyright (C) 2004 Freescale Semiconductor, Inc.
- *
- */
-#ifndef CPM_UART_H
-#define CPM_UART_H
-
-#include <linux/config.h>
-
-#if defined(CONFIG_CPM2)
-#include "cpm_uart_cpm2.h"
-#elif defined(CONFIG_8xx)
-#include "cpm_uart_cpm1.h"
-#endif
-
-#ifndef CONFIG_SERIAL_8250
-#define SERIAL_CPM_MAJOR TTY_MAJOR
-#define SERIAL_CPM_MINOR 64
-#else
-#define SERIAL_CPM_MAJOR 204
-#define SERIAL_CPM_MINOR 42
-#endif
-
-#define IS_SMC(pinfo) (pinfo->flags & FLAG_SMC)
-#define IS_DISCARDING(pinfo) (pinfo->flags & FLAG_DISCARDING)
-#define FLAG_DISCARDING 0x00000004 /* when set, don't discard */
-#define FLAG_SMC 0x00000002
-#define FLAG_CONSOLE 0x00000001
-
-#define UART_SMC1 0
-#define UART_SMC2 1
-#define UART_SCC1 2
-#define UART_SCC2 3
-#define UART_SCC3 4
-#define UART_SCC4 5
-
-#define UART_NR 6
-
-#define RX_NUM_FIFO 4
-#define RX_BUF_SIZE 32
-#define TX_NUM_FIFO 4
-#define TX_BUF_SIZE 32
-
-struct uart_cpm_port {
- struct uart_port port;
- u16 rx_nrfifos;
- u16 rx_fifosize;
- u16 tx_nrfifos;
- u16 tx_fifosize;
- smc_t *smcp;
- smc_uart_t *smcup;
- scc_t *sccp;
- scc_uart_t *sccup;
- volatile cbd_t *rx_bd_base;
- volatile cbd_t *rx_cur;
- volatile cbd_t *tx_bd_base;
- volatile cbd_t *tx_cur;
- unsigned char *tx_buf;
- unsigned char *rx_buf;
- u32 flags;
- void (*set_lineif)(struct uart_cpm_port *);
- u8 brg;
- uint dp_addr;
- void *mem_addr;
- dma_addr_t dma_addr;
- /* helpers */
- int baud;
- int bits;
-};
-
-extern int cpm_uart_port_map[UART_NR];
-extern int cpm_uart_nr;
-extern struct uart_cpm_port cpm_uart_ports[UART_NR];
-
-/* these are located in their respective files */
-void cpm_line_cr_cmd(int line, int cmd);
-int cpm_uart_init_portdesc(void);
-int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con);
-void cpm_uart_freebuf(struct uart_cpm_port *pinfo);
-
-void smc1_lineif(struct uart_cpm_port *pinfo);
-void smc2_lineif(struct uart_cpm_port *pinfo);
-void scc1_lineif(struct uart_cpm_port *pinfo);
-void scc2_lineif(struct uart_cpm_port *pinfo);
-void scc3_lineif(struct uart_cpm_port *pinfo);
-void scc4_lineif(struct uart_cpm_port *pinfo);
-
-#endif /* CPM_UART_H */
+++ /dev/null
-/*
- * linux/drivers/serial/cpm_uart.c
- *
- * Driver for CPM (SCC/SMC) serial ports; core driver
- *
- * Based on arch/ppc/cpm2_io/uart.c by Dan Malek
- * Based on ppc8xx.c by Thomas Gleixner
- * Based on drivers/serial/amba.c by Russell King
- *
- * Maintainer: Kumar Gala (kumar.gala@freescale.com) (CPM2)
- * Pantelis Antoniou (panto@intracom.gr) (CPM1)
- *
- * Copyright (C) 2004 Freescale Semiconductor, Inc.
- * (C) 2004 Intracom, S.A.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/serial.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-#include <linux/device.h>
-#include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/delay.h>
-
-#if defined(CONFIG_SERIAL_CPM_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
-#include <linux/serial_core.h>
-#include <linux/kernel.h>
-
-#include "cpm_uart.h"
-
-/***********************************************************************/
-
-/* Track which ports are configured as uarts */
-int cpm_uart_port_map[UART_NR];
-/* How many ports did we config as uarts */
-int cpm_uart_nr;
-
-/**************************************************************/
-
-static int cpm_uart_tx_pump(struct uart_port *port);
-static void cpm_uart_init_smc(struct uart_cpm_port *pinfo, int bits, u16 cval);
-static void cpm_uart_init_scc(struct uart_cpm_port *pinfo, int sbits, u16 sval);
-
-/**************************************************************/
-
-/*
- * Check, if transmit buffers are processed
-*/
-static unsigned int cpm_uart_tx_empty(struct uart_port *port)
-{
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- volatile cbd_t *bdp = pinfo->tx_bd_base;
- int ret = 0;
-
- while (1) {
- if (bdp->cbd_sc & BD_SC_READY)
- break;
-
- if (bdp->cbd_sc & BD_SC_WRAP) {
- ret = TIOCSER_TEMT;
- break;
- }
- bdp++;
- }
-
- pr_debug("CPM uart[%d]:tx_empty: %d\n", port->line, ret);
-
- return ret;
-}
-
-static void cpm_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
-{
- /* Whee. Do nothing. */
-}
-
-static unsigned int cpm_uart_get_mctrl(struct uart_port *port)
-{
- /* Whee. Do nothing. */
- return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS;
-}
-
-/*
- * Stop transmitter
- */
-static void cpm_uart_stop_tx(struct uart_port *port, unsigned int tty_stop)
-{
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- volatile smc_t *smcp = pinfo->smcp;
- volatile scc_t *sccp = pinfo->sccp;
-
- pr_debug("CPM uart[%d]:stop tx\n", port->line);
-
- if (IS_SMC(pinfo))
- smcp->smc_smcm &= ~SMCM_TX;
- else
- sccp->scc_sccm &= ~UART_SCCM_TX;
-}
-
-/*
- * Start transmitter
- */
-static void cpm_uart_start_tx(struct uart_port *port, unsigned int tty_start)
-{
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- volatile smc_t *smcp = pinfo->smcp;
- volatile scc_t *sccp = pinfo->sccp;
-
- pr_debug("CPM uart[%d]:start tx\n", port->line);
-
- /* if in the middle of discarding return */
- if (IS_DISCARDING(pinfo))
- return;
-
- if (IS_SMC(pinfo)) {
- if (smcp->smc_smcm & SMCM_TX)
- return;
- } else {
- if (sccp->scc_sccm & UART_SCCM_TX)
- return;
- }
-
- if (cpm_uart_tx_pump(port) != 0) {
- if (IS_SMC(pinfo))
- smcp->smc_smcm |= SMCM_TX;
- else
- sccp->scc_sccm |= UART_SCCM_TX;
- }
-}
-
-/*
- * Stop receiver
- */
-static void cpm_uart_stop_rx(struct uart_port *port)
-{
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- volatile smc_t *smcp = pinfo->smcp;
- volatile scc_t *sccp = pinfo->sccp;
-
- pr_debug("CPM uart[%d]:stop rx\n", port->line);
-
- if (IS_SMC(pinfo))
- smcp->smc_smcm &= ~SMCM_RX;
- else
- sccp->scc_sccm &= ~UART_SCCM_RX;
-}
-
-/*
- * Enable Modem status interrupts
- */
-static void cpm_uart_enable_ms(struct uart_port *port)
-{
- pr_debug("CPM uart[%d]:enable ms\n", port->line);
-}
-
-/*
- * Generate a break.
- */
-static void cpm_uart_break_ctl(struct uart_port *port, int break_state)
-{
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- int line = pinfo - cpm_uart_ports;
-
- pr_debug("CPM uart[%d]:break ctrl, break_state: %d\n", port->line,
- break_state);
-
- if (break_state)
- cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
- else
- cpm_line_cr_cmd(line, CPM_CR_RESTART_TX);
-}
-
-/*
- * Transmit characters, refill buffer descriptor, if possible
- */
-static void cpm_uart_int_tx(struct uart_port *port, struct pt_regs *regs)
-{
- pr_debug("CPM uart[%d]:TX INT\n", port->line);
-
- cpm_uart_tx_pump(port);
-}
-
-/*
- * Receive characters
- */
-static void cpm_uart_int_rx(struct uart_port *port, struct pt_regs *regs)
-{
- int i;
- unsigned char ch, *cp;
- struct tty_struct *tty = port->info->tty;
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- volatile cbd_t *bdp;
- u16 status;
- unsigned int flg;
-
- pr_debug("CPM uart[%d]:RX INT\n", port->line);
-
- /* Just loop through the closed BDs and copy the characters into
- * the buffer.
- */
- bdp = pinfo->rx_cur;
- for (;;) {
- /* get status */
- status = bdp->cbd_sc;
- /* If this one is empty, return happy */
- if (status & BD_SC_EMPTY)
- break;
-
- /* get number of characters, and check spce in flip-buffer */
- i = bdp->cbd_datlen;
-
- /* If we have not enough room in tty flip buffer, then we try
- * later, which will be the next rx-interrupt or a timeout
- */
- if ((tty->flip.count + i) >= TTY_FLIPBUF_SIZE) {
- tty->flip.work.func((void *)tty);
- if ((tty->flip.count + i) >= TTY_FLIPBUF_SIZE) {
- printk(KERN_WARNING "TTY_DONT_FLIP set\n");
- return;
- }
- }
-
- /* get pointer */
- cp = (unsigned char *)bus_to_virt(bdp->cbd_bufaddr);
-
- /* loop through the buffer */
- while (i-- > 0) {
- ch = *cp++;
- port->icount.rx++;
- flg = TTY_NORMAL;
-
- if (status &
- (BD_SC_BR | BD_SC_FR | BD_SC_PR | BD_SC_OV))
- goto handle_error;
- if (uart_handle_sysrq_char(port, ch, regs))
- continue;
-
- error_return:
- *tty->flip.char_buf_ptr++ = ch;
- *tty->flip.flag_buf_ptr++ = flg;
- tty->flip.count++;
-
- } /* End while (i--) */
-
- /* This BD is ready to be used again. Clear status. get next */
- bdp->cbd_sc &= ~(BD_SC_BR | BD_SC_FR | BD_SC_PR | BD_SC_OV);
- bdp->cbd_sc |= BD_SC_EMPTY;
-
- if (bdp->cbd_sc & BD_SC_WRAP)
- bdp = pinfo->rx_bd_base;
- else
- bdp++;
- } /* End for (;;) */
-
- /* Write back buffer pointer */
- pinfo->rx_cur = (volatile cbd_t *) bdp;
-
- /* activate BH processing */
- tty_flip_buffer_push(tty);
-
- return;
-
- /* Error processing */
-
- handle_error:
- /* Statistics */
- if (status & BD_SC_BR)
- port->icount.brk++;
- if (status & BD_SC_PR)
- port->icount.parity++;
- if (status & BD_SC_FR)
- port->icount.frame++;
- if (status & BD_SC_OV)
- port->icount.overrun++;
-
- /* Mask out ignored conditions */
- status &= port->read_status_mask;
-
- /* Handle the remaining ones */
- if (status & BD_SC_BR)
- flg = TTY_BREAK;
- else if (status & BD_SC_PR)
- flg = TTY_PARITY;
- else if (status & BD_SC_FR)
- flg = TTY_FRAME;
-
- /* overrun does not affect the current character ! */
- if (status & BD_SC_OV) {
- ch = 0;
- flg = TTY_OVERRUN;
- /* We skip this buffer */
- /* CHECK: Is really nothing senseful there */
- /* ASSUMPTION: it contains nothing valid */
- i = 0;
- }
-#ifdef SUPPORT_SYSRQ
- port->sysrq = 0;
-#endif
- goto error_return;
-}
-
-/*
- * Asynchron mode interrupt handler
- */
-static irqreturn_t cpm_uart_int(int irq, void *data, struct pt_regs *regs)
-{
- u8 events;
- struct uart_port *port = (struct uart_port *)data;
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- volatile smc_t *smcp = pinfo->smcp;
- volatile scc_t *sccp = pinfo->sccp;
-
- pr_debug("CPM uart[%d]:IRQ\n", port->line);
-
- if (IS_SMC(pinfo)) {
- events = smcp->smc_smce;
- if (events & SMCM_BRKE)
- uart_handle_break(port);
- if (events & SMCM_RX)
- cpm_uart_int_rx(port, regs);
- if (events & SMCM_TX)
- cpm_uart_int_tx(port, regs);
- smcp->smc_smce = events;
- } else {
- events = sccp->scc_scce;
- if (events & UART_SCCM_BRKE)
- uart_handle_break(port);
- if (events & UART_SCCM_RX)
- cpm_uart_int_rx(port, regs);
- if (events & UART_SCCM_TX)
- cpm_uart_int_tx(port, regs);
- sccp->scc_scce = events;
- }
- return (events) ? IRQ_HANDLED : IRQ_NONE;
-}
-
-static int cpm_uart_startup(struct uart_port *port)
-{
- int retval;
-
- pr_debug("CPM uart[%d]:startup\n", port->line);
-
- /* Install interrupt handler. */
- retval = request_irq(port->irq, cpm_uart_int, 0, "cpm_uart", port);
- if (retval)
- return retval;
-
- return 0;
-}
-
-/*
- * Shutdown the uart
- */
-static void cpm_uart_shutdown(struct uart_port *port)
-{
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- int line = pinfo - cpm_uart_ports;
-
- pr_debug("CPM uart[%d]:shutdown\n", port->line);
-
- /* free interrupt handler */
- free_irq(port->irq, port);
-
- /* If the port is not the console, disable Rx and Tx. */
- if (!(pinfo->flags & FLAG_CONSOLE)) {
- /* Stop uarts */
- if (IS_SMC(pinfo)) {
- volatile smc_t *smcp = pinfo->smcp;
- smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
- smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
- } else {
- volatile scc_t *sccp = pinfo->sccp;
- sccp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- sccp->scc_sccm &= ~(UART_SCCM_TX | UART_SCCM_RX);
- }
-
- /* Shut them really down and reinit buffer descriptors */
- cpm_line_cr_cmd(line, CPM_CR_INIT_TRX);
- }
-}
-
-static void cpm_uart_set_termios(struct uart_port *port,
- struct termios *termios, struct termios *old)
-{
- int baud;
- unsigned long flags;
- u16 cval, scval;
- int bits, sbits;
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- int line = pinfo - cpm_uart_ports;
- volatile cbd_t *bdp;
-
- pr_debug("CPM uart[%d]:set_termios\n", port->line);
-
- spin_lock_irqsave(&port->lock, flags);
- /* disable uart interrupts */
- if (IS_SMC(pinfo))
- pinfo->smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
- else
- pinfo->sccp->scc_sccm &= ~(UART_SCCM_TX | UART_SCCM_RX);
- pinfo->flags |= FLAG_DISCARDING;
- spin_unlock_irqrestore(&port->lock, flags);
-
- /* if previous configuration exists wait for tx to finish */
- if (pinfo->baud != 0 && pinfo->bits != 0) {
-
- /* point to the last txed bd */
- bdp = pinfo->tx_cur;
- if (bdp == pinfo->tx_bd_base)
- bdp = pinfo->tx_bd_base + (pinfo->tx_nrfifos - 1);
- else
- bdp--;
-
- /* wait for it to be transmitted */
- while ((bdp->cbd_sc & BD_SC_READY) != 0)
- schedule();
-
- /* and delay for the hw fifo to drain */
- udelay((3 * 1000000 * pinfo->bits) / pinfo->baud);
- }
-
- spin_lock_irqsave(&port->lock, flags);
-
- /* Send the CPM an initialize command. */
- cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
-
- /* Stop uart */
- if (IS_SMC(pinfo))
- pinfo->smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
- else
- pinfo->sccp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-
- /* Send the CPM an initialize command. */
- cpm_line_cr_cmd(line, CPM_CR_INIT_TRX);
-
- spin_unlock_irqrestore(&port->lock, flags);
-
- baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16);
-
- /* Character length programmed into the mode register is the
- * sum of: 1 start bit, number of data bits, 0 or 1 parity bit,
- * 1 or 2 stop bits, minus 1.
- * The value 'bits' counts this for us.
- */
- cval = 0;
- scval = 0;
-
- /* byte size */
- switch (termios->c_cflag & CSIZE) {
- case CS5:
- bits = 5;
- break;
- case CS6:
- bits = 6;
- break;
- case CS7:
- bits = 7;
- break;
- case CS8:
- bits = 8;
- break;
- /* Never happens, but GCC is too dumb to figure it out */
- default:
- bits = 8;
- break;
- }
- sbits = bits - 5;
-
- if (termios->c_cflag & CSTOPB) {
- cval |= SMCMR_SL; /* Two stops */
- scval |= SCU_PSMR_SL;
- bits++;
- }
-
- if (termios->c_cflag & PARENB) {
- cval |= SMCMR_PEN;
- scval |= SCU_PSMR_PEN;
- bits++;
- if (!(termios->c_cflag & PARODD)) {
- cval |= SMCMR_PM_EVEN;
- scval |= (SCU_PSMR_REVP | SCU_PSMR_TEVP);
- }
- }
-
- /*
- * Set up parity check flag
- */
-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
-
- port->read_status_mask = (BD_SC_EMPTY | BD_SC_OV);
- if (termios->c_iflag & INPCK)
- port->read_status_mask |= BD_SC_FR | BD_SC_PR;
- if ((termios->c_iflag & BRKINT) || (termios->c_iflag & PARMRK))
- port->read_status_mask |= BD_SC_BR;
-
- /*
- * Characters to ignore
- */
- port->ignore_status_mask = 0;
- if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= BD_SC_PR | BD_SC_FR;
- if (termios->c_iflag & IGNBRK) {
- port->ignore_status_mask |= BD_SC_BR;
- /*
- * If we're ignore parity and break indicators, ignore
- * overruns too. (For real raw support).
- */
- if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= BD_SC_OV;
- }
- /*
- * !!! ignore all characters if CREAD is not set
- */
- if ((termios->c_cflag & CREAD) == 0)
- port->read_status_mask &= ~BD_SC_EMPTY;
-
- spin_lock_irqsave(&port->lock, flags);
-
- cpm_set_brg(pinfo->brg - 1, baud);
-
- /* Start bit has not been added (so don't, because we would just
- * subtract it later), and we need to add one for the number of
- * stops bits (there is always at least one).
- */
- bits++;
-
- /* re-init */
- if (IS_SMC(pinfo))
- cpm_uart_init_smc(pinfo, bits, cval);
- else
- cpm_uart_init_scc(pinfo, sbits, scval);
-
- pinfo->baud = baud;
- pinfo->bits = bits;
-
- pinfo->flags &= ~FLAG_DISCARDING;
- spin_unlock_irqrestore(&port->lock, flags);
-
-}
-
-static const char *cpm_uart_type(struct uart_port *port)
-{
- pr_debug("CPM uart[%d]:uart_type\n", port->line);
-
- return port->type == PORT_CPM ? "CPM UART" : NULL;
-}
-
-/*
- * verify the new serial_struct (for TIOCSSERIAL).
- */
-static int cpm_uart_verify_port(struct uart_port *port,
- struct serial_struct *ser)
-{
- int ret = 0;
-
- pr_debug("CPM uart[%d]:verify_port\n", port->line);
-
- if (ser->type != PORT_UNKNOWN && ser->type != PORT_CPM)
- ret = -EINVAL;
- if (ser->irq < 0 || ser->irq >= NR_IRQS)
- ret = -EINVAL;
- if (ser->baud_base < 9600)
- ret = -EINVAL;
- return ret;
-}
-
-/*
- * Transmit characters, refill buffer descriptor, if possible
- */
-static int cpm_uart_tx_pump(struct uart_port *port)
-{
- volatile cbd_t *bdp;
- unsigned char *p;
- int count;
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- struct circ_buf *xmit = &port->info->xmit;
-
- /* Handle xon/xoff */
- if (port->x_char) {
- /* Pick next descriptor and fill from buffer */
- bdp = pinfo->tx_cur;
-
- p = bus_to_virt(bdp->cbd_bufaddr);
- *p++ = xmit->buf[xmit->tail];
- bdp->cbd_datlen = 1;
- bdp->cbd_sc |= BD_SC_READY;
- /* Get next BD. */
- if (bdp->cbd_sc & BD_SC_WRAP)
- bdp = pinfo->tx_bd_base;
- else
- bdp++;
- pinfo->tx_cur = bdp;
-
- port->icount.tx++;
- port->x_char = 0;
- return 1;
- }
-
- if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- cpm_uart_stop_tx(port, 0);
- return 0;
- }
-
- /* Pick next descriptor and fill from buffer */
- bdp = pinfo->tx_cur;
-
- while (!(bdp->cbd_sc & BD_SC_READY) && (xmit->tail != xmit->head)) {
- count = 0;
- p = bus_to_virt(bdp->cbd_bufaddr);
- while (count < pinfo->tx_fifosize) {
- *p++ = xmit->buf[xmit->tail];
- xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
- port->icount.tx++;
- count++;
- if (xmit->head == xmit->tail)
- break;
- }
- bdp->cbd_datlen = count;
- bdp->cbd_sc |= BD_SC_READY;
- /* Get next BD. */
- if (bdp->cbd_sc & BD_SC_WRAP)
- bdp = pinfo->tx_bd_base;
- else
- bdp++;
- }
- pinfo->tx_cur = bdp;
-
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
- uart_write_wakeup(port);
-
- if (uart_circ_empty(xmit)) {
- cpm_uart_stop_tx(port, 0);
- return 0;
- }
-
- return 1;
-}
-
-static void cpm_uart_init_scc(struct uart_cpm_port *pinfo, int bits, u16 scval)
-{
- int line = pinfo - cpm_uart_ports;
- volatile scc_t *scp;
- volatile scc_uart_t *sup;
- u8 *mem_addr;
- volatile cbd_t *bdp;
- int i;
-
- pr_debug("CPM uart[%d]:init_scc\n", pinfo->port.line);
-
- scp = pinfo->sccp;
- sup = pinfo->sccup;
-
- /* Set the physical address of the host memory
- * buffers in the buffer descriptors, and the
- * virtual address for us to work with.
- */
- pinfo->rx_cur = pinfo->rx_bd_base;
- mem_addr = pinfo->mem_addr;
- for (bdp = pinfo->rx_bd_base, i = 0; i < pinfo->rx_nrfifos; i++, bdp++) {
- bdp->cbd_bufaddr = virt_to_bus(mem_addr);
- bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT | (i < (pinfo->rx_nrfifos - 1) ? 0 : BD_SC_WRAP);
- mem_addr += pinfo->rx_fifosize;
- }
-
- /* Set the physical address of the host memory
- * buffers in the buffer descriptors, and the
- * virtual address for us to work with.
- */
- mem_addr = pinfo->mem_addr + L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize);
- pinfo->tx_cur = pinfo->tx_bd_base;
- for (bdp = pinfo->tx_bd_base, i = 0; i < pinfo->tx_nrfifos; i++, bdp++) {
- bdp->cbd_bufaddr = virt_to_bus(mem_addr);
- bdp->cbd_sc = BD_SC_INTRPT | (i < (pinfo->tx_nrfifos - 1) ? 0 : BD_SC_WRAP);
- mem_addr += pinfo->tx_fifosize;
- bdp++;
- }
-
- /* Store address */
- pinfo->sccup->scc_genscc.scc_rbase = (unsigned char *)pinfo->rx_bd_base - DPRAM_BASE;
- pinfo->sccup->scc_genscc.scc_tbase = (unsigned char *)pinfo->tx_bd_base - DPRAM_BASE;
-
- /* Set up the uart parameters in the
- * parameter ram.
- */
-
- cpm_set_scc_fcr(sup);
-
- sup->scc_genscc.scc_mrblr = pinfo->rx_fifosize;
- sup->scc_maxidl = pinfo->rx_fifosize;
- sup->scc_brkcr = 1;
- sup->scc_parec = 0;
- sup->scc_frmec = 0;
- sup->scc_nosec = 0;
- sup->scc_brkec = 0;
- sup->scc_uaddr1 = 0;
- sup->scc_uaddr2 = 0;
- sup->scc_toseq = 0;
- sup->scc_char1 = 0x8000;
- sup->scc_char2 = 0x8000;
- sup->scc_char3 = 0x8000;
- sup->scc_char4 = 0x8000;
- sup->scc_char5 = 0x8000;
- sup->scc_char6 = 0x8000;
- sup->scc_char7 = 0x8000;
- sup->scc_char8 = 0x8000;
- sup->scc_rccm = 0xc0ff;
-
- /* Send the CPM an initialize command.
- */
- cpm_line_cr_cmd(line, CPM_CR_INIT_TRX);
-
- /* Set UART mode, 8 bit, no parity, one stop.
- * Enable receive and transmit.
- */
- scp->scc_gsmrh = 0;
- scp->scc_gsmrl =
- (SCC_GSMRL_MODE_UART | SCC_GSMRL_TDCR_16 | SCC_GSMRL_RDCR_16);
-
- /* Enable rx interrupts and clear all pending events. */
- scp->scc_sccm = UART_SCCM_RX;
- scp->scc_scce = 0xffff;
- scp->scc_dsr = 0x7e7e;
- scp->scc_psmr = (bits << 12) | scval;
-
- scp->scc_gsmrl |= (SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-}
-
-static void cpm_uart_init_smc(struct uart_cpm_port *pinfo, int bits, u16 cval)
-{
- int line = pinfo - cpm_uart_ports;
- volatile smc_t *sp;
- volatile smc_uart_t *up;
- volatile u8 *mem_addr;
- volatile cbd_t *bdp;
- int i;
-
- pr_debug("CPM uart[%d]:init_smc\n", pinfo->port.line);
-
- sp = pinfo->smcp;
- up = pinfo->smcup;
-
- /* Set the physical address of the host memory
- * buffers in the buffer descriptors, and the
- * virtual address for us to work with.
- */
- mem_addr = pinfo->mem_addr;
- pinfo->rx_cur = pinfo->rx_bd_base;
- for (bdp = pinfo->rx_bd_base, i = 0; i < pinfo->rx_nrfifos; i++, bdp++) {
- bdp->cbd_bufaddr = virt_to_bus(mem_addr);
- bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT | (i < (pinfo->rx_nrfifos - 1) ? 0 : BD_SC_WRAP);
- mem_addr += pinfo->rx_fifosize;
- }
-
- /* Set the physical address of the host memory
- * buffers in the buffer descriptors, and the
- * virtual address for us to work with.
- */
- mem_addr = pinfo->mem_addr + L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize);
- pinfo->tx_cur = pinfo->tx_bd_base;
- for (bdp = pinfo->tx_bd_base, i = 0; i < pinfo->tx_nrfifos; i++, bdp++) {
- bdp->cbd_bufaddr = virt_to_bus(mem_addr);
- bdp->cbd_sc = BD_SC_INTRPT | (i < (pinfo->tx_nrfifos - 1) ? 0 : BD_SC_WRAP);
- mem_addr += pinfo->tx_fifosize;
- }
-
- /* Store address */
- pinfo->smcup->smc_rbase = (u_char *)pinfo->rx_bd_base - DPRAM_BASE;
- pinfo->smcup->smc_tbase = (u_char *)pinfo->tx_bd_base - DPRAM_BASE;
-
- /* Set up the uart parameters in the
- * parameter ram.
- */
- cpm_set_smc_fcr(up);
-
- /* Using idle charater time requires some additional tuning. */
- up->smc_mrblr = pinfo->rx_fifosize;
- up->smc_maxidl = pinfo->rx_fifosize;
- up->smc_brkcr = 1;
-
- cpm_line_cr_cmd(line, CPM_CR_INIT_TRX);
-
- /* Set UART mode, according to the parameters */
- sp->smc_smcmr = smcr_mk_clen(bits) | cval | SMCMR_SM_UART;
-
- /* Enable only rx interrupts clear all pending events. */
- sp->smc_smcm = SMCM_RX;
- sp->smc_smce = 0xff;
-
- sp->smc_smcmr |= (SMCMR_REN | SMCMR_TEN);
-}
-
-/*
- * Initialize port. This is called from early_console stuff
- * so we have to be careful here !
- */
-static int cpm_uart_request_port(struct uart_port *port)
-{
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
- int ret;
-
- pr_debug("CPM uart[%d]:request port\n", port->line);
-
- if (pinfo->flags & FLAG_CONSOLE)
- return 0;
-
- /*
- * Setup any port IO, connect any baud rate generators,
- * etc. This is expected to be handled by board
- * dependant code
- */
- if (pinfo->set_lineif)
- pinfo->set_lineif(pinfo);
-
- ret = cpm_uart_allocbuf(pinfo, 0);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static void cpm_uart_release_port(struct uart_port *port)
-{
- struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-
- if (!(pinfo->flags & FLAG_CONSOLE))
- cpm_uart_freebuf(pinfo);
-}
-
-/*
- * Configure/autoconfigure the port.
- */
-static void cpm_uart_config_port(struct uart_port *port, int flags)
-{
- pr_debug("CPM uart[%d]:config_port\n", port->line);
-
- if (flags & UART_CONFIG_TYPE) {
- port->type = PORT_CPM;
- cpm_uart_request_port(port);
- }
-}
-static struct uart_ops cpm_uart_pops = {
- .tx_empty = cpm_uart_tx_empty,
- .set_mctrl = cpm_uart_set_mctrl,
- .get_mctrl = cpm_uart_get_mctrl,
- .stop_tx = cpm_uart_stop_tx,
- .start_tx = cpm_uart_start_tx,
- .stop_rx = cpm_uart_stop_rx,
- .enable_ms = cpm_uart_enable_ms,
- .break_ctl = cpm_uart_break_ctl,
- .startup = cpm_uart_startup,
- .shutdown = cpm_uart_shutdown,
- .set_termios = cpm_uart_set_termios,
- .type = cpm_uart_type,
- .release_port = cpm_uart_release_port,
- .request_port = cpm_uart_request_port,
- .config_port = cpm_uart_config_port,
- .verify_port = cpm_uart_verify_port,
-};
-
-struct uart_cpm_port cpm_uart_ports[UART_NR] = {
- [UART_SMC1] = {
- .port = {
- .irq = SMC1_IRQ,
- .ops = &cpm_uart_pops,
- .iotype = SERIAL_IO_MEM,
- },
- .flags = FLAG_SMC,
- .tx_nrfifos = TX_NUM_FIFO,
- .tx_fifosize = TX_BUF_SIZE,
- .rx_nrfifos = RX_NUM_FIFO,
- .rx_fifosize = RX_BUF_SIZE,
- .set_lineif = smc1_lineif,
- },
- [UART_SMC2] = {
- .port = {
- .irq = SMC2_IRQ,
- .ops = &cpm_uart_pops,
- .iotype = SERIAL_IO_MEM,
- },
- .flags = FLAG_SMC,
- .tx_nrfifos = TX_NUM_FIFO,
- .tx_fifosize = TX_BUF_SIZE,
- .rx_nrfifos = RX_NUM_FIFO,
- .rx_fifosize = RX_BUF_SIZE,
- .set_lineif = smc2_lineif,
- },
- [UART_SCC1] = {
- .port = {
- .irq = SCC1_IRQ,
- .ops = &cpm_uart_pops,
- .iotype = SERIAL_IO_MEM,
- },
- .tx_nrfifos = TX_NUM_FIFO,
- .tx_fifosize = TX_BUF_SIZE,
- .rx_nrfifos = RX_NUM_FIFO,
- .rx_fifosize = RX_BUF_SIZE,
- .set_lineif = scc1_lineif,
- },
- [UART_SCC2] = {
- .port = {
- .irq = SCC2_IRQ,
- .ops = &cpm_uart_pops,
- .iotype = SERIAL_IO_MEM,
- },
- .tx_nrfifos = TX_NUM_FIFO,
- .tx_fifosize = TX_BUF_SIZE,
- .rx_nrfifos = RX_NUM_FIFO,
- .rx_fifosize = RX_BUF_SIZE,
- .set_lineif = scc2_lineif,
- },
- [UART_SCC3] = {
- .port = {
- .irq = SCC3_IRQ,
- .ops = &cpm_uart_pops,
- .iotype = SERIAL_IO_MEM,
- },
- .tx_nrfifos = TX_NUM_FIFO,
- .tx_fifosize = TX_BUF_SIZE,
- .rx_nrfifos = RX_NUM_FIFO,
- .rx_fifosize = RX_BUF_SIZE,
- .set_lineif = scc3_lineif,
- },
- [UART_SCC4] = {
- .port = {
- .irq = SCC4_IRQ,
- .ops = &cpm_uart_pops,
- .iotype = SERIAL_IO_MEM,
- },
- .tx_nrfifos = TX_NUM_FIFO,
- .tx_fifosize = TX_BUF_SIZE,
- .rx_nrfifos = RX_NUM_FIFO,
- .rx_fifosize = RX_BUF_SIZE,
- .set_lineif = scc4_lineif,
- },
-};
-
-#ifdef CONFIG_SERIAL_CPM_CONSOLE
-/*
- * Print a string to the serial port trying not to disturb
- * any possible real use of the port...
- *
- * Note that this is called with interrupts already disabled
- */
-static void cpm_uart_console_write(struct console *co, const char *s,
- u_int count)
-{
- struct uart_cpm_port *pinfo =
- &cpm_uart_ports[cpm_uart_port_map[co->index]];
- unsigned int i;
- volatile cbd_t *bdp, *bdbase;
- volatile unsigned char *cp;
-
- if (IS_DISCARDING(pinfo))
- return;
-
- /* Get the address of the host memory buffer.
- */
- bdp = pinfo->tx_cur;
- bdbase = pinfo->tx_bd_base;
-
- /*
- * Now, do each character. This is not as bad as it looks
- * since this is a holding FIFO and not a transmitting FIFO.
- * We could add the complexity of filling the entire transmit
- * buffer, but we would just wait longer between accesses......
- */
- for (i = 0; i < count; i++, s++) {
- /* Wait for transmitter fifo to empty.
- * Ready indicates output is ready, and xmt is doing
- * that, not that it is ready for us to send.
- */
- while ((bdp->cbd_sc & BD_SC_READY) != 0)
- ;
-
- /* Send the character out.
- * If the buffer address is in the CPM DPRAM, don't
- * convert it.
- */
- if ((uint) (bdp->cbd_bufaddr) > (uint) CPM_ADDR)
- cp = (unsigned char *) (bdp->cbd_bufaddr);
- else
- cp = bus_to_virt(bdp->cbd_bufaddr);
-
- *cp = *s;
-
- bdp->cbd_datlen = 1;
- bdp->cbd_sc |= BD_SC_READY;
-
- if (bdp->cbd_sc & BD_SC_WRAP)
- bdp = bdbase;
- else
- bdp++;
-
- /* if a LF, also do CR... */
- if (*s == 10) {
- while ((bdp->cbd_sc & BD_SC_READY) != 0)
- ;
-
- if ((uint) (bdp->cbd_bufaddr) > (uint) CPM_ADDR)
- cp = (unsigned char *) (bdp->cbd_bufaddr);
- else
- cp = bus_to_virt(bdp->cbd_bufaddr);
-
- *cp = 13;
- bdp->cbd_datlen = 1;
- bdp->cbd_sc |= BD_SC_READY;
-
- if (bdp->cbd_sc & BD_SC_WRAP)
- bdp = bdbase;
- else
- bdp++;
- }
- }
-
- /*
- * Finally, Wait for transmitter & holding register to empty
- * and restore the IER
- */
- while ((bdp->cbd_sc & BD_SC_READY) != 0)
- ;
-
- pinfo->tx_cur = (volatile cbd_t *) bdp;
-}
-
-/*
- * Setup console. Be careful is called early !
- */
-static int __init cpm_uart_console_setup(struct console *co, char *options)
-{
- struct uart_port *port;
- struct uart_cpm_port *pinfo;
- int baud = 38400;
- int bits = 8;
- int parity = 'n';
- int flow = 'n';
- int ret;
-
- port =
- (struct uart_port *)&cpm_uart_ports[cpm_uart_port_map[co->index]];
- pinfo = (struct uart_cpm_port *)port;
-
- pinfo->flags |= FLAG_CONSOLE;
-
- if (options) {
- uart_parse_options(options, &baud, &parity, &bits, &flow);
- } else {
- bd_t *bd = (bd_t *) __res;
-
- if (bd->bi_baudrate)
- baud = bd->bi_baudrate;
- else
- baud = 9600;
- }
-
- /*
- * Setup any port IO, connect any baud rate generators,
- * etc. This is expected to be handled by board
- * dependant code
- */
- if (pinfo->set_lineif)
- pinfo->set_lineif(pinfo);
-
- ret = cpm_uart_allocbuf(pinfo, 1);
- if (ret)
- return ret;
-
- uart_set_options(port, co, baud, parity, bits, flow);
-
- return 0;
-}
-
-extern struct uart_driver cpm_reg;
-static struct console cpm_scc_uart_console = {
- .name "ttyCPM",
- .write cpm_uart_console_write,
- .device uart_console_device,
- .setup cpm_uart_console_setup,
- .flags CON_PRINTBUFFER,
- .index -1,
- .data = &cpm_reg,
-};
-
-int __init cpm_uart_console_init(void)
-{
- int ret = cpm_uart_init_portdesc();
-
- if (!ret)
- register_console(&cpm_scc_uart_console);
- return ret;
-}
-
-console_initcall(cpm_uart_console_init);
-
-#define CPM_UART_CONSOLE &cpm_scc_uart_console
-#else
-#define CPM_UART_CONSOLE NULL
-#endif
-
-static struct uart_driver cpm_reg = {
- .owner = THIS_MODULE,
- .driver_name = "ttyCPM",
- .dev_name = "ttyCPM",
- .major = SERIAL_CPM_MAJOR,
- .minor = SERIAL_CPM_MINOR,
- .cons = CPM_UART_CONSOLE,
-};
-
-static int __init cpm_uart_init(void)
-{
- int ret, i;
-
- printk(KERN_INFO "Serial: CPM driver $Revision: 0.01 $\n");
-
-#ifndef CONFIG_SERIAL_CPM_CONSOLE
- ret = cpm_uart_init_portdesc();
- if (ret)
- return ret;
-#endif
-
- cpm_reg.nr = cpm_uart_nr;
- ret = uart_register_driver(&cpm_reg);
-
- if (ret)
- return ret;
-
- for (i = 0; i < cpm_uart_nr; i++) {
- int con = cpm_uart_port_map[i];
- cpm_uart_ports[con].port.line = i;
- cpm_uart_ports[con].port.flags = UPF_BOOT_AUTOCONF;
- uart_add_one_port(&cpm_reg, &cpm_uart_ports[con].port);
- }
-
- return ret;
-}
-
-static void __exit cpm_uart_exit(void)
-{
- int i;
-
- for (i = 0; i < cpm_uart_nr; i++) {
- int con = cpm_uart_port_map[i];
- uart_remove_one_port(&cpm_reg, &cpm_uart_ports[con].port);
- }
-
- uart_unregister_driver(&cpm_reg);
-}
-
-module_init(cpm_uart_init);
-module_exit(cpm_uart_exit);
-
-MODULE_AUTHOR("Kumar Gala/Antoniou Pantelis");
-MODULE_DESCRIPTION("CPM SCC/SMC port driver $Revision: 0.01 $");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CHARDEV(SERIAL_CPM_MAJOR, SERIAL_CPM_MINOR);
+++ /dev/null
-/*
- * linux/drivers/serial/cpm_uart.c
- *
- * Driver for CPM (SCC/SMC) serial ports; CPM1 definitions
- *
- * Maintainer: Kumar Gala (kumar.gala@freescale.com) (CPM2)
- * Pantelis Antoniou (panto@intracom.gr) (CPM1)
- *
- * Copyright (C) 2004 Freescale Semiconductor, Inc.
- * (C) 2004 Intracom, S.A.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/serial.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-#include <linux/device.h>
-#include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#include <linux/serial_core.h>
-#include <linux/kernel.h>
-
-#include "cpm_uart.h"
-
-/**************************************************************/
-
-void cpm_line_cr_cmd(int line, int cmd)
-{
- ushort val;
- volatile cpm8xx_t *cp = cpmp;
-
- switch (line) {
- case UART_SMC1:
- val = mk_cr_cmd(CPM_CR_CH_SMC1, cmd) | CPM_CR_FLG;
- break;
- case UART_SMC2:
- val = mk_cr_cmd(CPM_CR_CH_SMC2, cmd) | CPM_CR_FLG;
- break;
- case UART_SCC1:
- val = mk_cr_cmd(CPM_CR_CH_SCC1, cmd) | CPM_CR_FLG;
- break;
- case UART_SCC2:
- val = mk_cr_cmd(CPM_CR_CH_SCC2, cmd) | CPM_CR_FLG;
- break;
- case UART_SCC3:
- val = mk_cr_cmd(CPM_CR_CH_SCC3, cmd) | CPM_CR_FLG;
- break;
- case UART_SCC4:
- val = mk_cr_cmd(CPM_CR_CH_SCC4, cmd) | CPM_CR_FLG;
- break;
- default:
- return;
-
- }
- cp->cp_cpcr = val;
- while (cp->cp_cpcr & CPM_CR_FLG) ;
-}
-
-void smc1_lineif(struct uart_cpm_port *pinfo)
-{
- volatile cpm8xx_t *cp = cpmp;
-
- cp->cp_pbpar |= 0x000000c0;
- cp->cp_pbdir &= ~0x000000c0;
- cp->cp_pbodr &= ~0x000000c0;
-
- pinfo->brg = 1;
-}
-
-void smc2_lineif(struct uart_cpm_port *pinfo)
-{
- /* XXX SMC2: insert port configuration here */
- pinfo->brg = 2;
-}
-
-void scc1_lineif(struct uart_cpm_port *pinfo)
-{
- /* XXX SCC1: insert port configuration here */
- pinfo->brg = 1;
-}
-
-void scc2_lineif(struct uart_cpm_port *pinfo)
-{
- /* XXX SCC2: insert port configuration here */
- pinfo->brg = 2;
-}
-
-void scc3_lineif(struct uart_cpm_port *pinfo)
-{
- /* XXX SCC3: insert port configuration here */
- pinfo->brg = 3;
-}
-
-void scc4_lineif(struct uart_cpm_port *pinfo)
-{
- /* XXX SCC4: insert port configuration here */
- pinfo->brg = 4;
-}
-
-/*
- * Allocate DP-Ram and memory buffers. We need to allocate a transmit and
- * receive buffer descriptors from dual port ram, and a character
- * buffer area from host mem. If we are allocating for the console we need
- * to do it from bootmem
- */
-int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
-{
- int dpmemsz, memsz;
- u8 *dp_mem;
- uint dp_addr;
- u8 *mem_addr;
- dma_addr_t dma_addr;
-
- pr_debug("CPM uart[%d]:allocbuf\n", pinfo->port.line);
-
- dpmemsz = sizeof(cbd_t) * (pinfo->rx_nrfifos + pinfo->tx_nrfifos);
- dp_mem = m8xx_cpm_dpalloc(dpmemsz);
- if (dp_mem == NULL) {
- printk(KERN_ERR
- "cpm_uart_cpm1.c: could not allocate buffer descriptors\n");
- return -ENOMEM;
- }
- dp_addr = m8xx_cpm_dpram_offset(dp_mem);
-
- memsz = L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize) +
- L1_CACHE_ALIGN(pinfo->tx_nrfifos * pinfo->tx_fifosize);
- if (is_con) {
- mem_addr = (u8 *) m8xx_cpm_hostalloc(memsz);
- dma_addr = 0;
- } else
- mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
- GFP_KERNEL);
-
- if (mem_addr == NULL) {
- m8xx_cpm_dpfree(dp_mem);
- printk(KERN_ERR
- "cpm_uart_cpm1.c: could not allocate coherent memory\n");
- return -ENOMEM;
- }
-
- pinfo->dp_addr = dp_addr;
- pinfo->mem_addr = mem_addr;
- pinfo->dma_addr = dma_addr;
-
- pinfo->rx_buf = mem_addr;
- pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
- * pinfo->rx_fifosize);
-
- pinfo->rx_bd_base = (volatile cbd_t *)dp_mem;
- pinfo->tx_bd_base = pinfo->rx_bd_base + pinfo->rx_nrfifos;
-
- return 0;
-}
-
-void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
-{
- dma_free_coherent(NULL, L1_CACHE_ALIGN(pinfo->rx_nrfifos *
- pinfo->rx_fifosize) +
- L1_CACHE_ALIGN(pinfo->tx_nrfifos *
- pinfo->tx_fifosize), pinfo->mem_addr,
- pinfo->dma_addr);
-
- m8xx_cpm_dpfree(m8xx_cpm_dpram_addr(pinfo->dp_addr));
-}
-
-/* Setup any dynamic params in the uart desc */
-int cpm_uart_init_portdesc(void)
-{
- pr_debug("CPM uart[-]:init portdesc\n");
-
- cpm_uart_nr = 0;
-#ifdef CONFIG_SERIAL_CPM_SMC1
- cpm_uart_ports[UART_SMC1].smcp = &cpmp->cp_smc[0];
- cpm_uart_ports[UART_SMC1].smcup =
- (smc_uart_t *) & cpmp->cp_dparam[PROFF_SMC1];
- cpm_uart_ports[UART_SMC1].port.mapbase =
- (unsigned long)&cpmp->cp_smc[0];
- cpm_uart_ports[UART_SMC1].smcp->smc_smcm |= (SMCM_RX | SMCM_TX);
- cpm_uart_ports[UART_SMC1].smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
- cpm_uart_ports[UART_SMC1].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SMC1;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SMC2
- cpm_uart_ports[UART_SMC2].smcp = &cpmp->cp_smc[1];
- cpm_uart_ports[UART_SMC2].smcup =
- (smc_uart_t *) & cpmp->cp_dparam[PROFF_SMC2];
- cpm_uart_ports[UART_SMC2].port.mapbase =
- (unsigned long)&cpmp->cp_smc[1];
- cpm_uart_ports[UART_SMC2].smcp->smc_smcm |= (SMCM_RX | SMCM_TX);
- cpm_uart_ports[UART_SMC2].smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
- cpm_uart_ports[UART_SMC2].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SMC2;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SCC1
- cpm_uart_ports[UART_SCC1].sccp = &cpmp->cp_scc[0];
- cpm_uart_ports[UART_SCC1].sccup =
- (scc_uart_t *) & cpmp->cp_dparam[PROFF_SCC1];
- cpm_uart_ports[UART_SCC1].port.mapbase =
- (unsigned long)&cpmp->cp_scc[0];
- cpm_uart_ports[UART_SCC1].sccp->scc_sccm &=
- ~(UART_SCCM_TX | UART_SCCM_RX);
- cpm_uart_ports[UART_SCC1].sccp->scc_gsmrl &=
- ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- cpm_uart_ports[UART_SCC1].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SCC1;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SCC2
- cpm_uart_ports[UART_SCC2].sccp = &cpmp->cp_scc[1];
- cpm_uart_ports[UART_SCC2].sccup =
- (scc_uart_t *) & cpmp->cp_dparam[PROFF_SCC2];
- cpm_uart_ports[UART_SCC2].port.mapbase =
- (unsigned long)&cpmp->cp_scc[1];
- cpm_uart_ports[UART_SCC2].sccp->scc_sccm &=
- ~(UART_SCCM_TX | UART_SCCM_RX);
- cpm_uart_ports[UART_SCC2].sccp->scc_gsmrl &=
- ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- cpm_uart_ports[UART_SCC2].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SCC2;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SCC3
- cpm_uart_ports[UART_SCC3].sccp = &cpmp->cp_scc[2];
- cpm_uart_ports[UART_SCC3].sccup =
- (scc_uart_t *) & cpmp->cp_dparam[PROFF_SCC3];
- cpm_uart_ports[UART_SCC3].port.mapbase =
- (unsigned long)&cpmp->cp_scc[2];
- cpm_uart_ports[UART_SCC3].sccp->scc_sccm &=
- ~(UART_SCCM_TX | UART_SCCM_RX);
- cpm_uart_ports[UART_SCC3].sccp->scc_gsmrl &=
- ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- cpm_uart_ports[UART_SCC3].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SCC3;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SCC4
- cpm_uart_ports[UART_SCC4].sccp = &cpmp->cp_scc[3];
- cpm_uart_ports[UART_SCC4].sccup =
- (scc_uart_t *) & cpmp->cp_dparam[PROFF_SCC4];
- cpm_uart_ports[UART_SCC4].port.mapbase =
- (unsigned long)&cpmp->cp_scc[3];
- cpm_uart_ports[UART_SCC4].sccp->scc_sccm &=
- ~(UART_SCCM_TX | UART_SCCM_RX);
- cpm_uart_ports[UART_SCC4].sccp->scc_gsmrl &=
- ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- cpm_uart_ports[UART_SCC4].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SCC4;
-#endif
- return 0;
-}
+++ /dev/null
-/*
- * linux/drivers/serial/cpm_uart_cpm1.h
- *
- * Driver for CPM (SCC/SMC) serial ports
- *
- * definitions for cpm1
- *
- */
-
-#ifndef CPM_UART_CPM1_H
-#define CPM_UART_CPM1_H
-
-#include <asm/commproc.h>
-
-/* defines for IRQs */
-#define SMC1_IRQ (CPM_IRQ_OFFSET + CPMVEC_SMC1)
-#define SMC2_IRQ (CPM_IRQ_OFFSET + CPMVEC_SMC2)
-#define SCC1_IRQ (CPM_IRQ_OFFSET + CPMVEC_SCC1)
-#define SCC2_IRQ (CPM_IRQ_OFFSET + CPMVEC_SCC2)
-#define SCC3_IRQ (CPM_IRQ_OFFSET + CPMVEC_SCC3)
-#define SCC4_IRQ (CPM_IRQ_OFFSET + CPMVEC_SCC4)
-
-/* the CPM address */
-#define CPM_ADDR IMAP_ADDR
-
-static inline void cpm_set_brg(int brg, int baud)
-{
- m8xx_cpm_setbrg(brg, baud);
-}
-
-static inline void cpm_set_scc_fcr(volatile scc_uart_t * sup)
-{
- sup->scc_genscc.scc_rfcr = SMC_EB;
- sup->scc_genscc.scc_tfcr = SMC_EB;
-}
-
-static inline void cpm_set_smc_fcr(volatile smc_uart_t * up)
-{
- up->smc_rfcr = SMC_EB;
- up->smc_tfcr = SMC_EB;
-}
-
-#define DPRAM_BASE ((unsigned char *)&cpmp->cp_dpmem[0])
-
-#endif
+++ /dev/null
-/*
- * linux/drivers/serial/cpm_uart_cpm2.c
- *
- * Driver for CPM (SCC/SMC) serial ports; CPM2 definitions
- *
- * Maintainer: Kumar Gala (kumar.gala@freescale.com) (CPM2)
- * Pantelis Antoniou (panto@intracom.gr) (CPM1)
- *
- * Copyright (C) 2004 Freescale Semiconductor, Inc.
- * (C) 2004 Intracom, S.A.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/serial.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-#include <linux/device.h>
-#include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#include <linux/serial_core.h>
-#include <linux/kernel.h>
-
-#include "cpm_uart.h"
-
-/**************************************************************/
-
-void cpm_line_cr_cmd(int line, int cmd)
-{
- volatile cpm_cpm2_t *cp = cpmp;
- ulong val;
-
- switch (line) {
- case UART_SMC1:
- val = mk_cr_cmd(CPM_CR_SMC1_PAGE, CPM_CR_SMC1_SBLOCK, 0,
- cmd) | CPM_CR_FLG;
- break;
- case UART_SMC2:
- val = mk_cr_cmd(CPM_CR_SMC2_PAGE, CPM_CR_SMC2_SBLOCK, 0,
- cmd) | CPM_CR_FLG;
- break;
- case UART_SCC1:
- val = mk_cr_cmd(CPM_CR_SCC1_PAGE, CPM_CR_SCC1_SBLOCK, 0,
- cmd) | CPM_CR_FLG;
- break;
- case UART_SCC2:
- val = mk_cr_cmd(CPM_CR_SCC2_PAGE, CPM_CR_SCC2_SBLOCK, 0,
- cmd) | CPM_CR_FLG;
- break;
- case UART_SCC3:
- val = mk_cr_cmd(CPM_CR_SCC3_PAGE, CPM_CR_SCC3_SBLOCK, 0,
- cmd) | CPM_CR_FLG;
- break;
- case UART_SCC4:
- val = mk_cr_cmd(CPM_CR_SCC4_PAGE, CPM_CR_SCC4_SBLOCK, 0,
- cmd) | CPM_CR_FLG;
- break;
- default:
- return;
-
- }
- cp->cp_cpcr = val;
- while (cp->cp_cpcr & CPM_CR_FLG) ;
-}
-
-void smc1_lineif(struct uart_cpm_port *pinfo)
-{
- volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
-
- /* SMC1 is only on port D */
- io->iop_ppard |= 0x00c00000;
- io->iop_pdird |= 0x00400000;
- io->iop_pdird &= ~0x00800000;
- io->iop_psord &= ~0x00c00000;
-
- /* Wire BRG1 to SMC1 */
- cpm2_immr->im_cpmux.cmx_smr &= 0x0f;
- pinfo->brg = 1;
-}
-
-void smc2_lineif(struct uart_cpm_port *pinfo)
-{
- volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
-
- /* SMC2 is only on port A */
- io->iop_ppara |= 0x00c00000;
- io->iop_pdira |= 0x00400000;
- io->iop_pdira &= ~0x00800000;
- io->iop_psora &= ~0x00c00000;
-
- /* Wire BRG2 to SMC2 */
- cpm2_immr->im_cpmux.cmx_smr &= 0xf0;
- pinfo->brg = 2;
-}
-
-void scc1_lineif(struct uart_cpm_port *pinfo)
-{
- volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
-
- /* Use Port D for SCC1 instead of other functions. */
- io->iop_ppard |= 0x00000003;
- io->iop_psord &= ~0x00000001; /* Rx */
- io->iop_psord |= 0x00000002; /* Tx */
- io->iop_pdird &= ~0x00000001; /* Rx */
- io->iop_pdird |= 0x00000002; /* Tx */
-
- /* Wire BRG1 to SCC1 */
- cpm2_immr->im_cpmux.cmx_scr &= ~0x00ffffff;
- cpm2_immr->im_cpmux.cmx_scr |= 0x00000000;
- pinfo->brg = 1;
-}
-
-void scc2_lineif(struct uart_cpm_port *pinfo)
-{
- volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
- io->iop_pparb |= 0x008b0000;
- io->iop_pdirb |= 0x00880000;
- io->iop_psorb |= 0x00880000;
- io->iop_pdirb &= ~0x00030000;
- io->iop_psorb &= ~0x00030000;
- cpm2_immr->im_cpmux.cmx_scr &= ~0xff00ffff;
- cpm2_immr->im_cpmux.cmx_scr |= 0x00090000;
- pinfo->brg = 2;
-}
-
-void scc3_lineif(struct uart_cpm_port *pinfo)
-{
- volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
- io->iop_pparb |= 0x008b0000;
- io->iop_pdirb |= 0x00880000;
- io->iop_psorb |= 0x00880000;
- io->iop_pdirb &= ~0x00030000;
- io->iop_psorb &= ~0x00030000;
- cpm2_immr->im_cpmux.cmx_scr &= ~0xffff00ff;
- cpm2_immr->im_cpmux.cmx_scr |= 0x00001200;
- pinfo->brg = 3;
-}
-
-void scc4_lineif(struct uart_cpm_port *pinfo)
-{
- volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
-
- io->iop_ppard |= 0x00000600;
- io->iop_psord &= ~0x00000600; /* Tx/Rx */
- io->iop_pdird &= ~0x00000200; /* Rx */
- io->iop_pdird |= 0x00000400; /* Tx */
-
- cpm2_immr->im_cpmux.cmx_scr &= ~0xffffff00;
- cpm2_immr->im_cpmux.cmx_scr |= 0x0000001b;
- pinfo->brg = 4;
-}
-
-/*
- * Allocate DP-Ram and memory buffers. We need to allocate a transmit and
- * receive buffer descriptors from dual port ram, and a character
- * buffer area from host mem. If we are allocating for the console we need
- * to do it from bootmem
- */
-int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
-{
- int dpmemsz, memsz;
- u8 *dp_mem;
- uint dp_addr;
- u8 *mem_addr;
- dma_addr_t dma_addr = 0;
-
- pr_debug("CPM uart[%d]:allocbuf\n", pinfo->port.line);
-
- dpmemsz = sizeof(cbd_t) * (pinfo->rx_nrfifos + pinfo->tx_nrfifos);
- dp_mem = cpm2_dpalloc(dpmemsz, 8);
- if (dp_mem == NULL) {
- printk(KERN_ERR
- "cpm_uart_cpm1.c: could not allocate buffer descriptors\n");
- return -ENOMEM;
- }
-
- dp_addr = cpm2_dpram_offset(dp_mem);
-
- memsz = L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize) +
- L1_CACHE_ALIGN(pinfo->tx_nrfifos * pinfo->tx_fifosize);
- if (is_con)
- mem_addr = alloc_bootmem(memsz);
- else
- mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
- GFP_KERNEL);
-
- if (mem_addr == NULL) {
- cpm2_dpfree(dp_mem);
- printk(KERN_ERR
- "cpm_uart_cpm1.c: could not allocate coherent memory\n");
- return -ENOMEM;
- }
-
- pinfo->dp_addr = dp_addr;
- pinfo->mem_addr = mem_addr;
- pinfo->dma_addr = dma_addr;
-
- pinfo->rx_buf = mem_addr;
- pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
- * pinfo->rx_fifosize);
-
- pinfo->rx_bd_base = (volatile cbd_t *)dp_mem;
- pinfo->tx_bd_base = pinfo->rx_bd_base + pinfo->rx_nrfifos;
-
- return 0;
-}
-
-void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
-{
- dma_free_coherent(NULL, L1_CACHE_ALIGN(pinfo->rx_nrfifos *
- pinfo->rx_fifosize) +
- L1_CACHE_ALIGN(pinfo->tx_nrfifos *
- pinfo->tx_fifosize), pinfo->mem_addr,
- pinfo->dma_addr);
-
- cpm2_dpfree(&pinfo->dp_addr);
-}
-
-/* Setup any dynamic params in the uart desc */
-int cpm_uart_init_portdesc(void)
-{
- pr_debug("CPM uart[-]:init portdesc\n");
-
- cpm_uart_nr = 0;
-#ifdef CONFIG_SERIAL_CPM_SMC1
- cpm_uart_ports[UART_SMC1].smcp = (smc_t *) & cpm2_immr->im_smc[0];
- cpm_uart_ports[UART_SMC1].smcup =
- (smc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SMC1];
- cpm_uart_ports[UART_SMC1].port.mapbase =
- (unsigned long)&cpm2_immr->im_smc[0];
- cpm_uart_ports[UART_SMC1].smcp->smc_smcm |= (SMCM_RX | SMCM_TX);
- cpm_uart_ports[UART_SMC1].smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
- cpm_uart_ports[UART_SMC1].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SMC1;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SMC2
- cpm_uart_ports[UART_SMC2].smcp = (smc_t *) & cpm2_immr->im_smc[1];
- cpm_uart_ports[UART_SMC2].smcup =
- (smc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SMC2];
- cpm_uart_ports[UART_SMC2].port.mapbase =
- (unsigned long)&cpm2_immr->im_smc[1];
- cpm_uart_ports[UART_SMC2].smcp->smc_smcm |= (SMCM_RX | SMCM_TX);
- cpm_uart_ports[UART_SMC2].smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
- cpm_uart_ports[UART_SMC2].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SMC2;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SCC1
- cpm_uart_ports[UART_SCC1].sccp = (scc_t *) & cpm2_immr->im_scc[0];
- cpm_uart_ports[UART_SCC1].sccup =
- (scc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SCC1];
- cpm_uart_ports[UART_SCC1].port.mapbase =
- (unsigned long)&cpm2_immr->im_scc[0];
- cpm_uart_ports[UART_SCC1].sccp->scc_sccm &=
- ~(UART_SCCM_TX | UART_SCCM_RX);
- cpm_uart_ports[UART_SCC1].sccp->scc_gsmrl &=
- ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- cpm_uart_ports[UART_SCC1].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SCC1;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SCC2
- cpm_uart_ports[UART_SCC2].sccp = (scc_t *) & cpm2_immr->im_scc[1];
- cpm_uart_ports[UART_SCC2].sccup =
- (scc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SCC2];
- cpm_uart_ports[UART_SCC2].port.mapbase =
- (unsigned long)&cpm2_immr->im_scc[1];
- cpm_uart_ports[UART_SCC2].sccp->scc_sccm &=
- ~(UART_SCCM_TX | UART_SCCM_RX);
- cpm_uart_ports[UART_SCC2].sccp->scc_gsmrl &=
- ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- cpm_uart_ports[UART_SCC2].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SCC2;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SCC3
- cpm_uart_ports[UART_SCC3].sccp = (scc_t *) & cpm2_immr->im_scc[2];
- cpm_uart_ports[UART_SCC3].sccup =
- (scc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SCC3];
- cpm_uart_ports[UART_SCC3].port.mapbase =
- (unsigned long)&cpm2_immr->im_scc[2];
- cpm_uart_ports[UART_SCC3].sccp->scc_sccm &=
- ~(UART_SCCM_TX | UART_SCCM_RX);
- cpm_uart_ports[UART_SCC3].sccp->scc_gsmrl &=
- ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- cpm_uart_ports[UART_SCC3].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SCC3;
-#endif
-
-#ifdef CONFIG_SERIAL_CPM_SCC4
- cpm_uart_ports[UART_SCC4].sccp = (scc_t *) & cpm2_immr->im_scc[3];
- cpm_uart_ports[UART_SCC4].sccup =
- (scc_uart_t *) & cpm2_immr->im_dprambase[PROFF_SCC4];
- cpm_uart_ports[UART_SCC4].port.mapbase =
- (unsigned long)&cpm2_immr->im_scc[3];
- cpm_uart_ports[UART_SCC4].sccp->scc_sccm &=
- ~(UART_SCCM_TX | UART_SCCM_RX);
- cpm_uart_ports[UART_SCC4].sccp->scc_gsmrl &=
- ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
- cpm_uart_ports[UART_SCC4].port.uartclk = (((bd_t *) __res)->bi_intfreq);
- cpm_uart_port_map[cpm_uart_nr++] = UART_SCC4;
-#endif
-
- return 0;
-}
+++ /dev/null
-/*
- * linux/drivers/serial/cpm_uart_cpm2.h
- *
- * Driver for CPM (SCC/SMC) serial ports
- *
- * definitions for cpm2
- *
- */
-
-#ifndef CPM_UART_CPM2_H
-#define CPM_UART_CPM2_H
-
-#include <asm/cpm2.h>
-
-/* defines for IRQs */
-#define SMC1_IRQ SIU_INT_SMC1
-#define SMC2_IRQ SIU_INT_SMC2
-#define SCC1_IRQ SIU_INT_SCC1
-#define SCC2_IRQ SIU_INT_SCC2
-#define SCC3_IRQ SIU_INT_SCC3
-#define SCC4_IRQ SIU_INT_SCC4
-
-/* the CPM address */
-#define CPM_ADDR CPM_MAP_ADDR
-
-static inline void cpm_set_brg(int brg, int baud)
-{
- cpm2_setbrg(brg, baud);
-}
-
-static inline void cpm_set_scc_fcr(volatile scc_uart_t * sup)
-{
- sup->scc_genscc.scc_rfcr = CPMFCR_GBL | CPMFCR_EB;
- sup->scc_genscc.scc_tfcr = CPMFCR_GBL | CPMFCR_EB;
-}
-
-static inline void cpm_set_smc_fcr(volatile smc_uart_t * up)
-{
- up->smc_rfcr = CPMFCR_GBL | CPMFCR_EB;
- up->smc_tfcr = CPMFCR_GBL | CPMFCR_EB;
-}
-
-#define DPRAM_BASE ((unsigned char *)&cpm2_immr->im_dprambase[0])
-
-#endif
+++ /dev/null
-/*
- * drivers/serial/mpc52xx_uart.c
- *
- * Driver for the PSC of the Freescale MPC52xx PSCs configured as UARTs.
- *
- * FIXME According to the usermanual the status bits in the status register
- * are only updated when the peripherals access the FIFO and not when the
- * CPU access them. So since we use this bits to know when we stop writing
- * and reading, they may not be updated in-time and a race condition may
- * exists. But I haven't be able to prove this and I don't care. But if
- * any problem arises, it might worth checking. The TX/RX FIFO Stats
- * registers should be used in addition.
- * Update: Actually, they seem updated ... At least the bits we use.
- *
- *
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Some of the code has been inspired/copied from the 2.4 code written
- * by Dale Farnsworth <dfarnsworth@mvista.com>.
- *
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 MontaVista, Software, Inc.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-/* OCP Usage :
- *
- * This drivers uses the OCP model. To load the serial driver for one of the
- * PSCs, just add this to the core_ocp table :
- *
- * {
- * .vendor = OCP_VENDOR_FREESCALE,
- * .function = OCP_FUNC_PSC_UART,
- * .index = 0,
- * .paddr = MPC52xx_PSC1,
- * .irq = MPC52xx_PSC1_IRQ,
- * .pm = OCP_CPM_NA,
- * },
- *
- * This is for PSC1, replace the paddr and irq according to the PSC you want to
- * use. The driver all necessary registers to place the PSC in uart mode without
- * DCD. However, the pin multiplexing aren't changed and should be set either
- * by the bootloader or in the platform init code.
- * The index field must be equal to the PSC index ( e.g. 0 for PSC1, 1 for PSC2,
- * and so on). So the PSC1 is mapped to /dev/ttyS0, PSC2 to /dev/ttyS1 and so
- * on. But be warned, it's an ABSOLUTE REQUIREMENT ! This is needed mainly for
- * the console code : without this 1:1 mapping, at early boot time, when we are
- * parsing the kernel args console=ttyS?, we wouldn't know wich PSC it will be
- * mapped to because OCP stuff is not yet initialized.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/serial.h>
-#include <linux/sysrq.h>
-#include <linux/console.h>
-
-#include <asm/delay.h>
-#include <asm/io.h>
-#include <asm/ocp.h>
-
-#include <asm/mpc52xx.h>
-#include <asm/mpc52xx_psc.h>
-
-#if defined(CONFIG_SERIAL_MPC52xx_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
-#include <linux/serial_core.h>
-
-
-
-#define ISR_PASS_LIMIT 256 /* Max number of iteration in the interrupt */
-
-
-static struct uart_port mpc52xx_uart_ports[MPC52xx_PSC_MAXNUM];
- /* Rem: - We use the read_status_mask as a shadow of
- * psc->mpc52xx_psc_imr
- * - It's important that is array is all zero on start as we
- * use it to know if it's initialized or not ! If it's not sure
- * it's cleared, then a memset(...,0,...) should be added to
- * the console_init
- */
-
-#define PSC(port) ((struct mpc52xx_psc *)((port)->membase))
-
-
-/* Forward declaration of the interruption handling routine */
-static irqreturn_t mpc52xx_uart_int(int irq,void *dev_id,struct pt_regs *regs);
-
-
-/* Simple macro to test if a port is console or not. This one is taken
- * for serial_core.c and maybe should be moved to serial_core.h ? */
-#ifdef CONFIG_SERIAL_CORE_CONSOLE
-#define uart_console(port) ((port)->cons && (port)->cons->index == (port)->line)
-#else
-#define uart_console(port) (0)
-#endif
-
-
-/* ======================================================================== */
-/* UART operations */
-/* ======================================================================== */
-
-static unsigned int
-mpc52xx_uart_tx_empty(struct uart_port *port)
-{
- int status = in_be16(&PSC(port)->mpc52xx_psc_status);
- return (status & MPC52xx_PSC_SR_TXEMP) ? TIOCSER_TEMT : 0;
-}
-
-static void
-mpc52xx_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
-{
- /* Not implemented */
-}
-
-static unsigned int
-mpc52xx_uart_get_mctrl(struct uart_port *port)
-{
- /* Not implemented */
- return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
-}
-
-static void
-mpc52xx_uart_stop_tx(struct uart_port *port, unsigned int tty_stop)
-{
- /* port->lock taken by caller */
- port->read_status_mask &= ~MPC52xx_PSC_IMR_TXRDY;
- out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask);
-}
-
-static void
-mpc52xx_uart_start_tx(struct uart_port *port, unsigned int tty_start)
-{
- /* port->lock taken by caller */
- port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY;
- out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask);
-}
-
-static void
-mpc52xx_uart_send_xchar(struct uart_port *port, char ch)
-{
- unsigned long flags;
- spin_lock_irqsave(&port->lock, flags);
-
- port->x_char = ch;
- if (ch) {
- /* Make sure tx interrupts are on */
- /* Truly necessary ??? They should be anyway */
- port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY;
- out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask);
- }
-
- spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static void
-mpc52xx_uart_stop_rx(struct uart_port *port)
-{
- /* port->lock taken by caller */
- port->read_status_mask &= ~MPC52xx_PSC_IMR_RXRDY;
- out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask);
-}
-
-static void
-mpc52xx_uart_enable_ms(struct uart_port *port)
-{
- /* Not implemented */
-}
-
-static void
-mpc52xx_uart_break_ctl(struct uart_port *port, int ctl)
-{
- unsigned long flags;
- spin_lock_irqsave(&port->lock, flags);
-
- if ( ctl == -1 )
- out_8(&PSC(port)->command,MPC52xx_PSC_START_BRK);
- else
- out_8(&PSC(port)->command,MPC52xx_PSC_STOP_BRK);
-
- spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static int
-mpc52xx_uart_startup(struct uart_port *port)
-{
- struct mpc52xx_psc *psc = PSC(port);
-
- /* Reset/activate the port, clear and enable interrupts */
- out_8(&psc->command,MPC52xx_PSC_RST_RX);
- out_8(&psc->command,MPC52xx_PSC_RST_TX);
-
- out_be32(&psc->sicr,0); /* UART mode DCD ignored */
-
- out_be16(&psc->mpc52xx_psc_clock_select, 0xdd00); /* /16 prescaler on */
-
- out_8(&psc->rfcntl, 0x00);
- out_be16(&psc->rfalarm, 0x1ff);
- out_8(&psc->tfcntl, 0x07);
- out_be16(&psc->tfalarm, 0x80);
-
- port->read_status_mask |= MPC52xx_PSC_IMR_RXRDY | MPC52xx_PSC_IMR_TXRDY;
- out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask);
-
- out_8(&psc->command,MPC52xx_PSC_TX_ENABLE);
- out_8(&psc->command,MPC52xx_PSC_RX_ENABLE);
-
- return 0;
-}
-
-static void
-mpc52xx_uart_shutdown(struct uart_port *port)
-{
- struct mpc52xx_psc *psc = PSC(port);
-
- /* Shut down the port, interrupt and all */
- out_8(&psc->command,MPC52xx_PSC_RST_RX);
- out_8(&psc->command,MPC52xx_PSC_RST_TX);
-
- port->read_status_mask = 0;
- out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask);
-}
-
-static void
-mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new,
- struct termios *old)
-{
- struct mpc52xx_psc *psc = PSC(port);
- unsigned long flags;
- unsigned char mr1, mr2;
- unsigned short ctr;
- unsigned int j, baud, quot;
-
- /* Prepare what we're gonna write */
- mr1 = 0;
-
- switch (new->c_cflag & CSIZE) {
- case CS5: mr1 |= MPC52xx_PSC_MODE_5_BITS;
- break;
- case CS6: mr1 |= MPC52xx_PSC_MODE_6_BITS;
- break;
- case CS7: mr1 |= MPC52xx_PSC_MODE_7_BITS;
- break;
- case CS8:
- default: mr1 |= MPC52xx_PSC_MODE_8_BITS;
- }
-
- if (new->c_cflag & PARENB) {
- mr1 |= (new->c_cflag & PARODD) ?
- MPC52xx_PSC_MODE_PARODD : MPC52xx_PSC_MODE_PAREVEN;
- } else
- mr1 |= MPC52xx_PSC_MODE_PARNONE;
-
-
- mr2 = 0;
-
- if (new->c_cflag & CSTOPB)
- mr2 |= MPC52xx_PSC_MODE_TWO_STOP;
- else
- mr2 |= ((new->c_cflag & CSIZE) == CS5) ?
- MPC52xx_PSC_MODE_ONE_STOP_5_BITS :
- MPC52xx_PSC_MODE_ONE_STOP;
-
-
- baud = uart_get_baud_rate(port, new, old, 0, port->uartclk/16);
- quot = uart_get_divisor(port, baud);
- ctr = quot & 0xffff;
-
- /* Get the lock */
- spin_lock_irqsave(&port->lock, flags);
-
- /* Update the per-port timeout */
- uart_update_timeout(port, new->c_cflag, baud);
-
- /* Do our best to flush TX & RX, so we don't loose anything */
- /* But we don't wait indefinitly ! */
- j = 5000000; /* Maximum wait */
- /* FIXME Can't receive chars since set_termios might be called at early
- * boot for the console, all stuff is not yet ready to receive at that
- * time and that just makes the kernel oops */
- /* while (j-- && mpc52xx_uart_int_rx_chars(port)); */
- while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) &&
- --j)
- udelay(1);
-
- if (!j)
- printk( KERN_ERR "mpc52xx_uart.c: "
- "Unable to flush RX & TX fifos in-time in set_termios."
- "Some chars may have been lost.\n" );
-
- /* Reset the TX & RX */
- out_8(&psc->command,MPC52xx_PSC_RST_RX);
- out_8(&psc->command,MPC52xx_PSC_RST_TX);
-
- /* Send new mode settings */
- out_8(&psc->command,MPC52xx_PSC_SEL_MODE_REG_1);
- out_8(&psc->mode,mr1);
- out_8(&psc->mode,mr2);
- out_8(&psc->ctur,ctr >> 8);
- out_8(&psc->ctlr,ctr & 0xff);
-
- /* Reenable TX & RX */
- out_8(&psc->command,MPC52xx_PSC_TX_ENABLE);
- out_8(&psc->command,MPC52xx_PSC_RX_ENABLE);
-
- /* We're all set, release the lock */
- spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static const char *
-mpc52xx_uart_type(struct uart_port *port)
-{
- return port->type == PORT_MPC52xx ? "MPC52xx PSC" : NULL;
-}
-
-static void
-mpc52xx_uart_release_port(struct uart_port *port)
-{
- if (port->flags & UPF_IOREMAP) { /* remapped by us ? */
- iounmap(port->membase);
- port->membase = NULL;
- }
-}
-
-static int
-mpc52xx_uart_request_port(struct uart_port *port)
-{
- if (port->flags & UPF_IOREMAP) /* Need to remap ? */
- port->membase = ioremap(port->mapbase, sizeof(struct mpc52xx_psc));
-
- return port->membase != NULL ? 0 : -EBUSY;
-}
-
-static void
-mpc52xx_uart_config_port(struct uart_port *port, int flags)
-{
- if ( (flags & UART_CONFIG_TYPE) &&
- (mpc52xx_uart_request_port(port) == 0) )
- port->type = PORT_MPC52xx;
-}
-
-static int
-mpc52xx_uart_verify_port(struct uart_port *port, struct serial_struct *ser)
-{
- if ( ser->type != PORT_UNKNOWN && ser->type != PORT_MPC52xx )
- return -EINVAL;
-
- if ( (ser->irq != port->irq) ||
- (ser->io_type != SERIAL_IO_MEM) ||
- (ser->baud_base != port->uartclk) ||
- // FIXME Should check addresses/irq as well ?
- (ser->hub6 != 0 ) )
- return -EINVAL;
-
- return 0;
-}
-
-
-static struct uart_ops mpc52xx_uart_ops = {
- .tx_empty = mpc52xx_uart_tx_empty,
- .set_mctrl = mpc52xx_uart_set_mctrl,
- .get_mctrl = mpc52xx_uart_get_mctrl,
- .stop_tx = mpc52xx_uart_stop_tx,
- .start_tx = mpc52xx_uart_start_tx,
- .send_xchar = mpc52xx_uart_send_xchar,
- .stop_rx = mpc52xx_uart_stop_rx,
- .enable_ms = mpc52xx_uart_enable_ms,
- .break_ctl = mpc52xx_uart_break_ctl,
- .startup = mpc52xx_uart_startup,
- .shutdown = mpc52xx_uart_shutdown,
- .set_termios = mpc52xx_uart_set_termios,
-/* .pm = mpc52xx_uart_pm, Not supported yet */
-/* .set_wake = mpc52xx_uart_set_wake, Not supported yet */
- .type = mpc52xx_uart_type,
- .release_port = mpc52xx_uart_release_port,
- .request_port = mpc52xx_uart_request_port,
- .config_port = mpc52xx_uart_config_port,
- .verify_port = mpc52xx_uart_verify_port
-};
-
-
-/* ======================================================================== */
-/* Interrupt handling */
-/* ======================================================================== */
-
-static inline int
-mpc52xx_uart_int_rx_chars(struct uart_port *port, struct pt_regs *regs)
-{
- struct tty_struct *tty = port->info->tty;
- unsigned char ch;
- unsigned short status;
-
- /* While we can read, do so ! */
- while ( (status = in_be16(&PSC(port)->mpc52xx_psc_status)) &
- MPC52xx_PSC_SR_RXRDY) {
-
- /* If we are full, just stop reading */
- if (tty->flip.count >= TTY_FLIPBUF_SIZE)
- break;
-
- /* Get the char */
- ch = in_8(&PSC(port)->mpc52xx_psc_buffer_8);
-
- /* Handle sysreq char */
-#ifdef SUPPORT_SYSRQ
- if (uart_handle_sysrq_char(port, ch, regs)) {
- port->sysrq = 0;
- continue;
- }
-#endif
-
- /* Store it */
- *tty->flip.char_buf_ptr = ch;
- *tty->flip.flag_buf_ptr = 0;
- port->icount.rx++;
-
- if ( status & (MPC52xx_PSC_SR_PE |
- MPC52xx_PSC_SR_FE |
- MPC52xx_PSC_SR_RB |
- MPC52xx_PSC_SR_OE) ) {
-
- if (status & MPC52xx_PSC_SR_RB) {
- *tty->flip.flag_buf_ptr = TTY_BREAK;
- uart_handle_break(port);
- } else if (status & MPC52xx_PSC_SR_PE)
- *tty->flip.flag_buf_ptr = TTY_PARITY;
- else if (status & MPC52xx_PSC_SR_FE)
- *tty->flip.flag_buf_ptr = TTY_FRAME;
- if (status & MPC52xx_PSC_SR_OE) {
- /*
- * Overrun is special, since it's
- * reported immediately, and doesn't
- * affect the current character
- */
- if (tty->flip.count < (TTY_FLIPBUF_SIZE-1)) {
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
- }
- *tty->flip.flag_buf_ptr = TTY_OVERRUN;
- }
-
- /* Clear error condition */
- out_8(&PSC(port)->command,MPC52xx_PSC_RST_ERR_STAT);
-
- }
-
- tty->flip.char_buf_ptr++;
- tty->flip.flag_buf_ptr++;
- tty->flip.count++;
-
- }
-
- tty_flip_buffer_push(tty);
-
- return in_be16(&PSC(port)->mpc52xx_psc_status) & MPC52xx_PSC_SR_RXRDY;
-}
-
-static inline int
-mpc52xx_uart_int_tx_chars(struct uart_port *port)
-{
- struct circ_buf *xmit = &port->info->xmit;
-
- /* Process out of band chars */
- if (port->x_char) {
- out_8(&PSC(port)->mpc52xx_psc_buffer_8, port->x_char);
- port->icount.tx++;
- port->x_char = 0;
- return 1;
- }
-
- /* Nothing to do ? */
- if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- mpc52xx_uart_stop_tx(port,0);
- return 0;
- }
-
- /* Send chars */
- while (in_be16(&PSC(port)->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXRDY) {
- out_8(&PSC(port)->mpc52xx_psc_buffer_8, xmit->buf[xmit->tail]);
- xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
- port->icount.tx++;
- if (uart_circ_empty(xmit))
- break;
- }
-
- /* Wake up */
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
- uart_write_wakeup(port);
-
- /* Maybe we're done after all */
- if (uart_circ_empty(xmit)) {
- mpc52xx_uart_stop_tx(port,0);
- return 0;
- }
-
- return 1;
-}
-
-static irqreturn_t
-mpc52xx_uart_int(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct uart_port *port = (struct uart_port *) dev_id;
- unsigned long pass = ISR_PASS_LIMIT;
- unsigned int keepgoing;
- unsigned short status;
-
- if ( irq != port->irq ) {
- printk( KERN_WARNING
- "mpc52xx_uart_int : " \
- "Received wrong int %d. Waiting for %d\n",
- irq, port->irq);
- return IRQ_NONE;
- }
-
- spin_lock(&port->lock);
-
- /* While we have stuff to do, we continue */
- do {
- /* If we don't find anything to do, we stop */
- keepgoing = 0;
-
- /* Read status */
- status = in_be16(&PSC(port)->mpc52xx_psc_isr);
- status &= port->read_status_mask;
-
- /* Do we need to receive chars ? */
- /* For this RX interrupts must be on and some chars waiting */
- if ( status & MPC52xx_PSC_IMR_RXRDY )
- keepgoing |= mpc52xx_uart_int_rx_chars(port, regs);
-
- /* Do we need to send chars ? */
- /* For this, TX must be ready and TX interrupt enabled */
- if ( status & MPC52xx_PSC_IMR_TXRDY )
- keepgoing |= mpc52xx_uart_int_tx_chars(port);
-
- /* Limit number of iteration */
- if ( !(--pass) )
- keepgoing = 0;
-
- } while (keepgoing);
-
- spin_unlock(&port->lock);
-
- return IRQ_HANDLED;
-}
-
-
-/* ======================================================================== */
-/* Console ( if applicable ) */
-/* ======================================================================== */
-
-#ifdef CONFIG_SERIAL_MPC52xx_CONSOLE
-
-static void __init
-mpc52xx_console_get_options(struct uart_port *port,
- int *baud, int *parity, int *bits, int *flow)
-{
- struct mpc52xx_psc *psc = PSC(port);
- unsigned char mr1;
-
- /* Read the mode registers */
- out_8(&psc->command,MPC52xx_PSC_SEL_MODE_REG_1);
- mr1 = in_8(&psc->mode);
-
- /* CT{U,L}R are write-only ! */
- *baud = __res.bi_baudrate ?
- __res.bi_baudrate : CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD;
-
- /* Parse them */
- switch (mr1 & MPC52xx_PSC_MODE_BITS_MASK) {
- case MPC52xx_PSC_MODE_5_BITS: *bits = 5; break;
- case MPC52xx_PSC_MODE_6_BITS: *bits = 6; break;
- case MPC52xx_PSC_MODE_7_BITS: *bits = 7; break;
- case MPC52xx_PSC_MODE_8_BITS:
- default: *bits = 8;
- }
-
- if (mr1 & MPC52xx_PSC_MODE_PARNONE)
- *parity = 'n';
- else
- *parity = mr1 & MPC52xx_PSC_MODE_PARODD ? 'o' : 'e';
-}
-
-static void
-mpc52xx_console_write(struct console *co, const char *s, unsigned int count)
-{
- struct uart_port *port = &mpc52xx_uart_ports[co->index];
- struct mpc52xx_psc *psc = PSC(port);
- unsigned int i, j;
-
- /* Disable interrupts */
- out_be16(&psc->mpc52xx_psc_imr, 0);
-
- /* Wait the TX buffer to be empty */
- j = 5000000; /* Maximum wait */
- while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) &&
- --j)
- udelay(1);
-
- /* Write all the chars */
- for ( i=0 ; i<count ; i++ ) {
-
- /* Send the char */
- out_8(&psc->mpc52xx_psc_buffer_8, *s);
-
- /* Line return handling */
- if ( *s++ == '\n' )
- out_8(&psc->mpc52xx_psc_buffer_8, '\r');
-
- /* Wait the TX buffer to be empty */
- j = 20000; /* Maximum wait */
- while (!(in_be16(&psc->mpc52xx_psc_status) &
- MPC52xx_PSC_SR_TXEMP) && --j)
- udelay(1);
- }
-
- /* Restore interrupt state */
- out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask);
-}
-
-static int __init
-mpc52xx_console_setup(struct console *co, char *options)
-{
- struct uart_port *port = &mpc52xx_uart_ports[co->index];
-
- int baud = 9600;
- int bits = 8;
- int parity = 'n';
- int flow = 'n';
-
- if (co->index < 0 || co->index >= MPC52xx_PSC_MAXNUM)
- return -EINVAL;
-
- /* Basic port init. Needed since we use some uart_??? func before
- * real init for early access */
- port->lock = SPIN_LOCK_UNLOCKED;
- port->uartclk = __res.bi_ipbfreq / 2; /* Look at CTLR doc */
- port->ops = &mpc52xx_uart_ops;
- port->mapbase = MPC52xx_PSCx(co->index);
-
- /* We ioremap ourself */
- port->membase = ioremap(port->mapbase, sizeof(struct mpc52xx_psc));
- if (port->membase == NULL) {
- release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc));
- return -EBUSY;
- }
-
- /* Setup the port parameters accoding to options */
- if (options)
- uart_parse_options(options, &baud, &parity, &bits, &flow);
- else
- mpc52xx_console_get_options(port, &baud, &parity, &bits, &flow);
-
- return uart_set_options(port, co, baud, parity, bits, flow);
-}
-
-
-extern struct uart_driver mpc52xx_uart_driver;
-
-static struct console mpc52xx_console = {
- .name = "ttyS",
- .write = mpc52xx_console_write,
- .device = uart_console_device,
- .setup = mpc52xx_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1, /* Specified on the cmdline (e.g. console=ttyS0 ) */
- .data = &mpc52xx_uart_driver,
-};
-
-
-static int __init
-mpc52xx_console_init(void)
-{
- register_console(&mpc52xx_console);
- return 0;
-}
-
-console_initcall(mpc52xx_console_init);
-
-#define MPC52xx_PSC_CONSOLE &mpc52xx_console
-#else
-#define MPC52xx_PSC_CONSOLE NULL
-#endif
-
-
-/* ======================================================================== */
-/* UART Driver */
-/* ======================================================================== */
-
-static struct uart_driver mpc52xx_uart_driver = {
- .owner = THIS_MODULE,
- .driver_name = "mpc52xx_psc_uart",
- .dev_name = "ttyS",
- .devfs_name = "ttyS",
- .major = TTY_MAJOR,
- .minor = 64,
- .nr = MPC52xx_PSC_MAXNUM,
- .cons = MPC52xx_PSC_CONSOLE,
-};
-
-
-/* ======================================================================== */
-/* OCP Driver */
-/* ======================================================================== */
-
-static int __devinit
-mpc52xx_uart_probe(struct ocp_device *ocp)
-{
- struct uart_port *port = NULL;
- int idx, ret;
-
- /* Get the corresponding port struct */
- idx = ocp->def->index;
- if (idx < 0 || idx >= MPC52xx_PSC_MAXNUM)
- return -EINVAL;
-
- port = &mpc52xx_uart_ports[idx];
-
- /* Init the port structure */
- port->lock = SPIN_LOCK_UNLOCKED;
- port->mapbase = ocp->def->paddr;
- port->irq = ocp->def->irq;
- port->uartclk = __res.bi_ipbfreq / 2; /* Look at CTLR doc */
- port->fifosize = 255; /* Should be 512 ! But it can't be */
- /* stored in a unsigned char */
- port->iotype = UPIO_MEM;
- port->flags = UPF_BOOT_AUTOCONF |
- ( uart_console(port) ? 0 : UPF_IOREMAP );
- port->line = idx;
- port->ops = &mpc52xx_uart_ops;
- port->read_status_mask = 0;
-
- /* Requests the mem & irqs */
- /* Unlike other serial drivers, we reserve the resources here, so we
- * can detect early if multiple drivers uses the same PSC. Special
- * care must be taken with the console PSC
- */
- ret = request_irq(
- port->irq, mpc52xx_uart_int,
- SA_INTERRUPT | SA_SAMPLE_RANDOM, "mpc52xx_psc_uart", port);
- if (ret)
- goto error;
-
- ret = request_mem_region(port->mapbase, sizeof(struct mpc52xx_psc),
- "mpc52xx_psc_uart") != NULL ? 0 : -EBUSY;
- if (ret)
- goto free_irq;
-
- /* Add the port to the uart sub-system */
- ret = uart_add_one_port(&mpc52xx_uart_driver, port);
- if (ret)
- goto release_mem;
-
- ocp_set_drvdata(ocp, (void*)port);
-
- return 0;
-
-
-free_irq:
- free_irq(port->irq, mpc52xx_uart_int);
-
-release_mem:
- release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc));
-
-error:
- if (uart_console(port))
- printk( "mpc52xx_uart.c: Error during resource alloction for "
- "the console port !!! Check that the console PSC is "
- "not used by another OCP driver !!!\n" );
-
- return ret;
-}
-
-static void
-mpc52xx_uart_remove(struct ocp_device *ocp)
-{
- struct uart_port *port = (struct uart_port *) ocp_get_drvdata(ocp);
-
- ocp_set_drvdata(ocp, NULL);
-
- if (port) {
- uart_remove_one_port(&mpc52xx_uart_driver, port);
- release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc));
- free_irq(port->irq, mpc52xx_uart_int);
- }
-}
-
-#ifdef CONFIG_PM
-static int
-mpc52xx_uart_suspend(struct ocp_device *ocp, u32 state)
-{
- struct uart_port *port = (struct uart_port *) ocp_get_drvdata(ocp);
-
- uart_suspend_port(&mpc52xx_uart_driver, port);
-
- return 0;
-}
-
-static int
-mpc52xx_uart_resume(struct ocp_device *ocp)
-{
- struct uart_port *port = (struct uart_port *) ocp_get_drvdata(ocp);
-
- uart_resume_port(&mpc52xx_uart_driver, port);
-
- return 0;
-}
-#endif
-
-static struct ocp_device_id mpc52xx_uart_ids[] __devinitdata = {
- { .vendor = OCP_VENDOR_FREESCALE, .function = OCP_FUNC_PSC_UART },
- { .vendor = OCP_VENDOR_INVALID /* Terminating entry */ }
-};
-
-MODULE_DEVICE_TABLE(ocp, mpc52xx_uart_ids);
-
-static struct ocp_driver mpc52xx_uart_ocp_driver = {
- .name = "mpc52xx_psc_uart",
- .id_table = mpc52xx_uart_ids,
- .probe = mpc52xx_uart_probe,
- .remove = mpc52xx_uart_remove,
-#ifdef CONFIG_PM
- .suspend = mpc52xx_uart_suspend,
- .resume = mpc52xx_uart_resume,
-#endif
-};
-
-
-/* ======================================================================== */
-/* Module */
-/* ======================================================================== */
-
-static int __init
-mpc52xx_uart_init(void)
-{
- int ret;
-
- printk(KERN_INFO "Serial: MPC52xx PSC driver\n");
-
- ret = uart_register_driver(&mpc52xx_uart_driver);
- if (ret)
- return ret;
-
- ret = ocp_register_driver(&mpc52xx_uart_ocp_driver);
-
- return ret;
-}
-
-static void __exit
-mpc52xx_uart_exit(void)
-{
- ocp_unregister_driver(&mpc52xx_uart_ocp_driver);
- uart_unregister_driver(&mpc52xx_uart_driver);
-}
-
-
-module_init(mpc52xx_uart_init);
-module_exit(mpc52xx_uart_exit);
-
-MODULE_AUTHOR("Sylvain Munaut <tnt@246tNt.com>");
-MODULE_DESCRIPTION("Freescale MPC52xx PSC UART");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* drivers/serial/serial_lh7a40x.c
- *
- * Copyright (C) 2004 Coastal Environmental Systems
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- */
-
-/* Driver for Sharp LH7A40X embedded serial ports
- *
- * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
- * Based on drivers/serial/amba.c, by Deep Blue Solutions Ltd.
- *
- * ---
- *
- * This driver supports the embedded UARTs of the Sharp LH7A40X series
- * CPUs. While similar to the 16550 and other UART chips, there is
- * nothing close to register compatibility. Moreover, some of the
- * modem control lines are not available, either in the chip or they
- * are lacking in the board-level implementation.
- *
- * - Use of SIRDIS
- * For simplicity, we disable the IR functions of any UART whenever
- * we enable it.
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/serial.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#if defined(CONFIG_SERIAL_LH7A40X_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
-#include <linux/serial_core.h>
-
-#include <asm/arch/serial.h>
-
-#define DEV_MAJOR 204
-#define DEV_MINOR 16
-#define DEV_NR 3
-
-#define ISR_LOOP_LIMIT 256
-
-#define UR(p,o) _UR ((p)->membase, o)
-#define _UR(b,o) (*((volatile unsigned int*)(((unsigned char*) b) + (o))))
-#define BIT_CLR(p,o,m) UR(p,o) = UR(p,o) & (~(unsigned int)m)
-#define BIT_SET(p,o,m) UR(p,o) = UR(p,o) | ( (unsigned int)m)
-
-#define UART_REG_SIZE 32
-
-#define UARTEN (0x01) /* UART enable */
-#define SIRDIS (0x02) /* Serial IR disable (UART1 only) */
-
-#define RxEmpty (0x10)
-#define TxEmpty (0x80)
-#define TxFull (0x20)
-#define nRxRdy RxEmpty
-#define nTxRdy TxFull
-#define TxBusy (0x08)
-
-#define RxBreak (0x0800)
-#define RxOverrunError (0x0400)
-#define RxParityError (0x0200)
-#define RxFramingError (0x0100)
-#define RxError (RxBreak | RxOverrunError | RxParityError | RxFramingError)
-
-#define DCD (0x04)
-#define DSR (0x02)
-#define CTS (0x01)
-
-#define RxInt (0x01)
-#define TxInt (0x02)
-#define ModemInt (0x04)
-#define RxTimeoutInt (0x08)
-
-#define MSEOI (0x10)
-
-#define WLEN_8 (0x60)
-#define WLEN_7 (0x40)
-#define WLEN_6 (0x20)
-#define WLEN_5 (0x00)
-#define WLEN (0x60) /* Mask for all word-length bits */
-#define STP2 (0x08)
-#define PEN (0x02) /* Parity Enable */
-#define EPS (0x04) /* Even Parity Set */
-#define FEN (0x10) /* FIFO Enable */
-#define BRK (0x01) /* Send Break */
-
-
-struct uart_port_lh7a40x {
- struct uart_port port;
- unsigned int statusPrev; /* Most recently read modem status */
-};
-
-static void lh7a40xuart_stop_tx (struct uart_port* port, unsigned int tty_stop)
-{
- BIT_CLR (port, UART_R_INTEN, TxInt);
-}
-
-static void lh7a40xuart_start_tx (struct uart_port* port,
- unsigned int tty_start)
-{
- BIT_SET (port, UART_R_INTEN, TxInt);
-
- /* *** FIXME: do I need to check for startup of the
- transmitter? The old driver did, but AMBA
- doesn't . */
-}
-
-static void lh7a40xuart_stop_rx (struct uart_port* port)
-{
- BIT_SET (port, UART_R_INTEN, RxTimeoutInt | RxInt);
-}
-
-static void lh7a40xuart_enable_ms (struct uart_port* port)
-{
- BIT_SET (port, UART_R_INTEN, ModemInt);
-}
-
-static void
-#ifdef SUPPORT_SYSRQ
-lh7a40xuart_rx_chars (struct uart_port* port, struct pt_regs* regs)
-#else
-lh7a40xuart_rx_chars (struct uart_port* port)
-#endif
-{
- struct tty_struct* tty = port->info->tty;
- int cbRxMax = 256; /* (Gross) limit on receive */
- unsigned int data; /* Received data and status */
-
- while (!(UR (port, UART_R_STATUS) & nRxRdy) && --cbRxMax) {
- if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
- tty->flip.work.func((void*)tty);
- if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
- printk(KERN_WARNING "TTY_DONT_FLIP set\n");
- return;
- }
- }
-
- data = UR (port, UART_R_DATA);
-
- *tty->flip.char_buf_ptr = (unsigned char) data;
- *tty->flip.flag_buf_ptr = TTY_NORMAL;
- ++port->icount.rx;
-
- if (data & RxError) { /* Quick check, short-circuit */
- if (data & RxBreak) {
- data &= ~(RxFramingError | RxParityError);
- ++port->icount.brk;
- if (uart_handle_break (port))
- continue;
- }
- else if (data & RxParityError)
- ++port->icount.parity;
- else if (data & RxFramingError)
- ++port->icount.frame;
- if (data & RxOverrunError)
- ++port->icount.overrun;
-
- /* Mask by termios, leave Rx'd byte */
- data &= port->read_status_mask | 0xff;
-
- if (data & RxBreak)
- *tty->flip.flag_buf_ptr = TTY_BREAK;
- else if (data & RxParityError)
- *tty->flip.flag_buf_ptr = TTY_PARITY;
- else if (data & RxFramingError)
- *tty->flip.flag_buf_ptr = TTY_FRAME;
- }
-
- if (uart_handle_sysrq_char (port, (unsigned char) data, regs))
- continue;
-
- if ((data & port->ignore_status_mask) == 0) {
- ++tty->flip.flag_buf_ptr;
- ++tty->flip.char_buf_ptr;
- ++tty->flip.count;
- }
- if ((data & RxOverrunError)
- && tty->flip.count < TTY_FLIPBUF_SIZE) {
- /*
- * Overrun is special, since it's reported
- * immediately, and doesn't affect the current
- * character
- */
- *tty->flip.char_buf_ptr++ = 0;
- *tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
- ++tty->flip.count;
- }
- }
- tty_flip_buffer_push (tty);
- return;
-}
-
-static void lh7a40xuart_tx_chars (struct uart_port* port)
-{
- struct circ_buf* xmit = &port->info->xmit;
- int cbTxMax = port->fifosize;
-
- if (port->x_char) {
- UR (port, UART_R_DATA) = port->x_char;
- ++port->icount.tx;
- port->x_char = 0;
- return;
- }
- if (uart_circ_empty (xmit) || uart_tx_stopped (port)) {
- lh7a40xuart_stop_tx (port, 0);
- return;
- }
-
- /* Unlike the AMBA UART, the lh7a40x UART does not guarantee
- that at least half of the FIFO is empty. Instead, we check
- status for every character. Using the AMBA method causes
- the transmitter to drop characters. */
-
- do {
- UR (port, UART_R_DATA) = xmit->buf[xmit->tail];
- xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
- ++port->icount.tx;
- if (uart_circ_empty(xmit))
- break;
- } while (!(UR (port, UART_R_STATUS) & nTxRdy)
- && cbTxMax--);
-
- if (uart_circ_chars_pending (xmit) < WAKEUP_CHARS)
- uart_write_wakeup (port);
-
- if (uart_circ_empty (xmit))
- lh7a40xuart_stop_tx (port, 0);
-}
-
-static void lh7a40xuart_modem_status (struct uart_port* port)
-{
- unsigned int status = UR (port, UART_R_STATUS);
- unsigned int delta
- = status ^ ((struct uart_port_lh7a40x*) port)->statusPrev;
-
- BIT_SET (port, UART_R_RAWISR, MSEOI); /* Clear modem status intr */
-
- if (!delta) /* Only happens if we missed 2 transitions */
- return;
-
- ((struct uart_port_lh7a40x*) port)->statusPrev = status;
-
- if (delta & DCD)
- uart_handle_dcd_change (port, status & DCD);
-
- if (delta & DSR)
- ++port->icount.dsr;
-
- if (delta & CTS)
- uart_handle_cts_change (port, status & CTS);
-
- wake_up_interruptible (&port->info->delta_msr_wait);
-}
-
-static irqreturn_t lh7a40xuart_int (int irq, void* dev_id,
- struct pt_regs* regs)
-{
- struct uart_port* port = dev_id;
- unsigned int cLoopLimit = ISR_LOOP_LIMIT;
- unsigned int isr = UR (port, UART_R_ISR);
-
-
- do {
- if (isr & (RxInt | RxTimeoutInt))
-#ifdef SUPPORT_SYSRQ
- lh7a40xuart_rx_chars(port, regs);
-#else
- lh7a40xuart_rx_chars(port);
-#endif
- if (isr & ModemInt)
- lh7a40xuart_modem_status (port);
- if (isr & TxInt)
- lh7a40xuart_tx_chars (port);
-
- if (--cLoopLimit == 0)
- break;
-
- isr = UR (port, UART_R_ISR);
- } while (isr & (RxInt | TxInt | RxTimeoutInt));
-
- return IRQ_HANDLED;
-}
-
-static unsigned int lh7a40xuart_tx_empty (struct uart_port* port)
-{
- return (UR (port, UART_R_STATUS) & TxEmpty) ? TIOCSER_TEMT : 0;
-}
-
-static unsigned int lh7a40xuart_get_mctrl (struct uart_port* port)
-{
- unsigned int result = 0;
- unsigned int status = UR (port, UART_R_STATUS);
-
- if (status & DCD)
- result |= TIOCM_CAR;
- if (status & DSR)
- result |= TIOCM_DSR;
- if (status & CTS)
- result |= TIOCM_CTS;
-
- return result;
-}
-
-static void lh7a40xuart_set_mctrl (struct uart_port* port, unsigned int mctrl)
-{
- /* None of the ports supports DTR. UART1 supports RTS through GPIO. */
- /* Note, kernel appears to be setting DTR and RTS on console. */
-
- /* *** FIXME: this deserves more work. There's some work in
- tracing all of the IO pins. */
-#if 0
- if( port->mapbase == UART1_PHYS) {
- gpioRegs_t *gpio = (gpioRegs_t *)IO_ADDRESS(GPIO_PHYS);
-
- if (mctrl & TIOCM_RTS)
- gpio->pbdr &= ~GPIOB_UART1_RTS;
- else
- gpio->pbdr |= GPIOB_UART1_RTS;
- }
-#endif
-}
-
-static void lh7a40xuart_break_ctl (struct uart_port* port, int break_state)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&port->lock, flags);
- if (break_state == -1)
- BIT_SET (port, UART_R_FCON, BRK); /* Assert break */
- else
- BIT_CLR (port, UART_R_FCON, BRK); /* Deassert break */
- spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static int lh7a40xuart_startup (struct uart_port* port)
-{
- int retval;
-
- retval = request_irq (port->irq, lh7a40xuart_int, 0,
- "serial_lh7a40x", port);
- if (retval)
- return retval;
-
- /* Initial modem control-line settings */
- ((struct uart_port_lh7a40x*) port)->statusPrev
- = UR (port, UART_R_STATUS);
-
- /* There is presently no configuration option to enable IR.
- Thus, we always disable it. */
-
- BIT_SET (port, UART_R_CON, UARTEN | SIRDIS);
- BIT_SET (port, UART_R_INTEN, RxTimeoutInt | RxInt);
-
- return 0;
-}
-
-static void lh7a40xuart_shutdown (struct uart_port* port)
-{
- free_irq (port->irq, port);
- BIT_CLR (port, UART_R_FCON, BRK | FEN);
- BIT_CLR (port, UART_R_CON, UARTEN);
-}
-
-static void lh7a40xuart_set_termios (struct uart_port* port,
- struct termios* termios,
- struct termios* old)
-{
- unsigned int con;
- unsigned int inten;
- unsigned int fcon;
- unsigned long flags;
- unsigned int baud;
- unsigned int quot;
-
- baud = uart_get_baud_rate (port, termios, old, 8, port->uartclk/16);
- quot = uart_get_divisor (port, baud); /* -1 performed elsewhere */
-
- switch (termios->c_cflag & CSIZE) {
- case CS5:
- fcon = WLEN_5;
- break;
- case CS6:
- fcon = WLEN_6;
- break;
- case CS7:
- fcon = WLEN_7;
- break;
- case CS8:
- default:
- fcon = WLEN_8;
- break;
- }
- if (termios->c_cflag & CSTOPB)
- fcon |= STP2;
- if (termios->c_cflag & PARENB) {
- fcon |= PEN;
- if (!(termios->c_cflag & PARODD))
- fcon |= EPS;
- }
- if (port->fifosize > 1)
- fcon |= FEN;
-
- spin_lock_irqsave (&port->lock, flags);
-
- uart_update_timeout (port, termios->c_cflag, baud);
-
- port->read_status_mask = RxOverrunError;
- if (termios->c_iflag & INPCK)
- port->read_status_mask |= RxFramingError | RxParityError;
- if (termios->c_iflag & (BRKINT | PARMRK))
- port->read_status_mask |= RxBreak;
-
- /* Figure mask for status we ignore */
- port->ignore_status_mask = 0;
- if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= RxFramingError | RxParityError;
- if (termios->c_iflag & IGNBRK) {
- port->ignore_status_mask |= RxBreak;
- /* Ignore overrun when ignorning parity */
- /* *** FIXME: is this in the right place? */
- if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= RxOverrunError;
- }
-
- /* Ignore all receive errors when receive disabled */
- if ((termios->c_cflag & CREAD) == 0)
- port->ignore_status_mask |= RxError;
-
- con = UR (port, UART_R_CON);
- inten = (UR (port, UART_R_INTEN) & ~ModemInt);
-
- if (UART_ENABLE_MS (port, termios->c_cflag))
- inten |= ModemInt;
-
- BIT_CLR (port, UART_R_CON, UARTEN); /* Disable UART */
- UR (port, UART_R_INTEN) = 0; /* Disable interrupts */
- UR (port, UART_R_BRCON) = quot - 1; /* Set baud rate divisor */
- UR (port, UART_R_FCON) = fcon; /* Set FIFO and frame ctrl */
- UR (port, UART_R_INTEN) = inten; /* Enable interrupts */
- UR (port, UART_R_CON) = con; /* Restore UART mode */
-
- spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static const char* lh7a40xuart_type (struct uart_port* port)
-{
- return port->type == PORT_LH7A40X ? "LH7A40X" : NULL;
-}
-
-static void lh7a40xuart_release_port (struct uart_port* port)
-{
- release_mem_region (port->mapbase, UART_REG_SIZE);
-}
-
-static int lh7a40xuart_request_port (struct uart_port* port)
-{
- return request_mem_region (port->mapbase, UART_REG_SIZE,
- "serial_lh7a40x") != NULL
- ? 0 : -EBUSY;
-}
-
-static void lh7a40xuart_config_port (struct uart_port* port, int flags)
-{
- if (flags & UART_CONFIG_TYPE) {
- port->type = PORT_LH7A40X;
- lh7a40xuart_request_port (port);
- }
-}
-
-static int lh7a40xuart_verify_port (struct uart_port* port,
- struct serial_struct* ser)
-{
- int ret = 0;
-
- if (ser->type != PORT_UNKNOWN && ser->type != PORT_LH7A40X)
- ret = -EINVAL;
- if (ser->irq < 0 || ser->irq >= NR_IRQS)
- ret = -EINVAL;
- if (ser->baud_base < 9600) /* *** FIXME: is this true? */
- ret = -EINVAL;
- return ret;
-}
-
-static struct uart_ops lh7a40x_uart_ops = {
- .tx_empty = lh7a40xuart_tx_empty,
- .set_mctrl = lh7a40xuart_set_mctrl,
- .get_mctrl = lh7a40xuart_get_mctrl,
- .stop_tx = lh7a40xuart_stop_tx,
- .start_tx = lh7a40xuart_start_tx,
- .stop_rx = lh7a40xuart_stop_rx,
- .enable_ms = lh7a40xuart_enable_ms,
- .break_ctl = lh7a40xuart_break_ctl,
- .startup = lh7a40xuart_startup,
- .shutdown = lh7a40xuart_shutdown,
- .set_termios = lh7a40xuart_set_termios,
- .type = lh7a40xuart_type,
- .release_port = lh7a40xuart_release_port,
- .request_port = lh7a40xuart_request_port,
- .config_port = lh7a40xuart_config_port,
- .verify_port = lh7a40xuart_verify_port,
-};
-
-static struct uart_port_lh7a40x lh7a40x_ports[DEV_NR] = {
- {
- .port = {
- .membase = (void*) io_p2v (UART1_PHYS),
- .mapbase = UART1_PHYS,
- .iotype = SERIAL_IO_MEM,
- .irq = IRQ_UART1INTR,
- .uartclk = 14745600/2,
- .fifosize = 16,
- .ops = &lh7a40x_uart_ops,
- .flags = ASYNC_BOOT_AUTOCONF,
- .line = 0,
- },
- },
- {
- .port = {
- .membase = (void*) io_p2v (UART2_PHYS),
- .mapbase = UART2_PHYS,
- .iotype = SERIAL_IO_MEM,
- .irq = IRQ_UART2INTR,
- .uartclk = 14745600/2,
- .fifosize = 16,
- .ops = &lh7a40x_uart_ops,
- .flags = ASYNC_BOOT_AUTOCONF,
- .line = 1,
- },
- },
- {
- .port = {
- .membase = (void*) io_p2v (UART3_PHYS),
- .mapbase = UART3_PHYS,
- .iotype = SERIAL_IO_MEM,
- .irq = IRQ_UART3INTR,
- .uartclk = 14745600/2,
- .fifosize = 16,
- .ops = &lh7a40x_uart_ops,
- .flags = ASYNC_BOOT_AUTOCONF,
- .line = 2,
- },
- },
-};
-
-#ifndef CONFIG_SERIAL_LH7A40X_CONSOLE
-# define LH7A40X_CONSOLE NULL
-#else
-# define LH7A40X_CONSOLE &lh7a40x_console
-
-
-static void lh7a40xuart_console_write (struct console* co,
- const char* s,
- unsigned int count)
-{
- struct uart_port* port = &lh7a40x_ports[co->index].port;
- unsigned int con = UR (port, UART_R_CON);
- unsigned int inten = UR (port, UART_R_INTEN);
-
-
- UR (port, UART_R_INTEN) = 0; /* Disable all interrupts */
- BIT_SET (port, UART_R_CON, UARTEN | SIRDIS); /* Enable UART */
-
- for (; count-- > 0; ++s) {
- while (UR (port, UART_R_STATUS) & nTxRdy)
- ;
- UR (port, UART_R_DATA) = *s;
- if (*s == '\n') {
- while ((UR (port, UART_R_STATUS) & TxBusy))
- ;
- UR (port, UART_R_DATA) = '\r';
- }
- }
-
- /* Wait until all characters are sent */
- while (UR (port, UART_R_STATUS) & TxBusy)
- ;
-
- /* Restore control and interrupt mask */
- UR (port, UART_R_CON) = con;
- UR (port, UART_R_INTEN) = inten;
-}
-
-static void __init lh7a40xuart_console_get_options (struct uart_port* port,
- int* baud,
- int* parity,
- int* bits)
-{
- if (UR (port, UART_R_CON) & UARTEN) {
- unsigned int fcon = UR (port, UART_R_FCON);
- unsigned int quot = UR (port, UART_R_BRCON) + 1;
-
- switch (fcon & (PEN | EPS)) {
- default: *parity = 'n'; break;
- case PEN: *parity = 'o'; break;
- case PEN | EPS: *parity = 'e'; break;
- }
-
- switch (fcon & WLEN) {
- default:
- case WLEN_8: *bits = 8; break;
- case WLEN_7: *bits = 7; break;
- case WLEN_6: *bits = 6; break;
- case WLEN_5: *bits = 5; break;
- }
-
- *baud = port->uartclk/(16*quot);
- }
-}
-
-static int __init lh7a40xuart_console_setup (struct console* co, char* options)
-{
- struct uart_port* port;
- int baud = 38400;
- int bits = 8;
- int parity = 'n';
- int flow = 'n';
-
- if (co->index >= DEV_NR) /* Bounds check on device number */
- co->index = 0;
- port = &lh7a40x_ports[co->index].port;
-
- if (options)
- uart_parse_options (options, &baud, &parity, &bits, &flow);
- else
- lh7a40xuart_console_get_options (port, &baud, &parity, &bits);
-
- return uart_set_options (port, co, baud, parity, bits, flow);
-}
-
-extern struct uart_driver lh7a40x_reg;
-static struct console lh7a40x_console = {
- .name = "ttyAM",
- .write = lh7a40xuart_console_write,
- .device = uart_console_device,
- .setup = lh7a40xuart_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
- .data = &lh7a40x_reg,
-};
-
-static int __init lh7a40xuart_console_init(void)
-{
- register_console (&lh7a40x_console);
- return 0;
-}
-
-console_initcall (lh7a40xuart_console_init);
-
-#endif
-
-static struct uart_driver lh7a40x_reg = {
- .owner = THIS_MODULE,
- .driver_name = "ttyAM",
- .dev_name = "ttyAM",
- .major = DEV_MAJOR,
- .minor = DEV_MINOR,
- .nr = DEV_NR,
- .cons = LH7A40X_CONSOLE,
-};
-
-static int __init lh7a40xuart_init(void)
-{
- int ret;
-
- printk (KERN_INFO "serial: LH7A40X serial driver\n");
-
- ret = uart_register_driver (&lh7a40x_reg);
-
- if (ret == 0) {
- int i;
-
- for (i = 0; i < DEV_NR; i++)
- uart_add_one_port (&lh7a40x_reg,
- &lh7a40x_ports[i].port);
- }
- return ret;
-}
-
-static void __exit lh7a40xuart_exit(void)
-{
- int i;
-
- for (i = 0; i < DEV_NR; i++)
- uart_remove_one_port (&lh7a40x_reg, &lh7a40x_ports[i].port);
-
- uart_unregister_driver (&lh7a40x_reg);
-}
-
-module_init (lh7a40xuart_init);
-module_exit (lh7a40xuart_exit);
-
-MODULE_AUTHOR ("Marc Singer");
-MODULE_DESCRIPTION ("Sharp LH7A40X serial port driver");
-MODULE_LICENSE ("GPL");
+++ /dev/null
-/*
- * C-Brick Serial Port (and console) driver for SGI Altix machines.
- *
- * This driver is NOT suitable for talking to the l1-controller for
- * anything other than 'console activities' --- please use the l1
- * driver for that.
- *
- *
- * Copyright (c) 2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/NoticeExplan
- */
-
-#include <linux/config.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/serial.h>
-#include <linux/console.h>
-#include <linux/module.h>
-#include <linux/sysrq.h>
-#include <linux/circ_buf.h>
-#include <linux/serial_reg.h>
-#include <linux/delay.h> /* for mdelay */
-#include <linux/miscdevice.h>
-#include <linux/serial_core.h>
-
-#include <asm/sn/simulator.h>
-#include <asm/sn/sn2/sn_private.h>
-#include <asm/sn/sn_sal.h>
-
-/* number of characters we can transmit to the SAL console at a time */
-#define SN_SAL_MAX_CHARS 120
-
-/* 64K, when we're asynch, it must be at least printk's LOG_BUF_LEN to
- * avoid losing chars, (always has to be a power of 2) */
-#define SN_SAL_BUFFER_SIZE (64 * (1 << 10))
-
-#define SN_SAL_UART_FIFO_DEPTH 16
-#define SN_SAL_UART_FIFO_SPEED_CPS 9600/10
-
-/* sn_transmit_chars() calling args */
-#define TRANSMIT_BUFFERED 0
-#define TRANSMIT_RAW 1
-
-/* To use dynamic numbers only and not use the assigned major and minor,
- * define the following.. */
-/* #define USE_DYNAMIC_MINOR 1 */ /* use dynamic minor number */
-#define USE_DYNAMIC_MINOR 0 /* Don't rely on misc_register dynamic minor */
-
-/* Device name we're using */
-#define DEVICE_NAME "ttySG"
-#define DEVICE_NAME_DYNAMIC "ttySG0" /* need full name for misc_register */
-/* The major/minor we are using, ignored for USE_DYNAMIC_MINOR */
-#define DEVICE_MAJOR 204
-#define DEVICE_MINOR 40
-
-/*
- * Port definition - this kinda drives it all
- */
-struct sn_cons_port {
- struct timer_list sc_timer;
- struct uart_port sc_port;
- struct sn_sal_ops {
- int (*sal_puts_raw) (const char *s, int len);
- int (*sal_puts) (const char *s, int len);
- int (*sal_getc) (void);
- int (*sal_input_pending) (void);
- void (*sal_wakeup_transmit) (struct sn_cons_port *, int);
- } *sc_ops;
- unsigned long sc_interrupt_timeout;
- int sc_is_asynch;
-};
-
-static struct sn_cons_port sal_console_port;
-
-/* Only used if USE_DYNAMIC_MINOR is set to 1 */
-static struct miscdevice misc; /* used with misc_register for dynamic */
-
-extern u64 master_node_bedrock_address;
-extern void early_sn_setup(void);
-
-#undef DEBUG
-#ifdef DEBUG
-static int sn_debug_printf(const char *fmt, ...);
-#define DPRINTF(x...) sn_debug_printf(x)
-#else
-#define DPRINTF(x...) do { } while (0)
-#endif
-
-/* Prototypes */
-static int snt_hw_puts_raw(const char *, int);
-static int snt_hw_puts_buffered(const char *, int);
-static int snt_poll_getc(void);
-static int snt_poll_input_pending(void);
-static int snt_sim_puts(const char *, int);
-static int snt_sim_getc(void);
-static int snt_sim_input_pending(void);
-static int snt_intr_getc(void);
-static int snt_intr_input_pending(void);
-static void sn_transmit_chars(struct sn_cons_port *, int);
-
-/* A table for polling:
- */
-static struct sn_sal_ops poll_ops = {
- .sal_puts_raw = snt_hw_puts_raw,
- .sal_puts = snt_hw_puts_raw,
- .sal_getc = snt_poll_getc,
- .sal_input_pending = snt_poll_input_pending
-};
-
-/* A table for the simulator */
-static struct sn_sal_ops sim_ops = {
- .sal_puts_raw = snt_sim_puts,
- .sal_puts = snt_sim_puts,
- .sal_getc = snt_sim_getc,
- .sal_input_pending = snt_sim_input_pending
-};
-
-/* A table for interrupts enabled */
-static struct sn_sal_ops intr_ops = {
- .sal_puts_raw = snt_hw_puts_raw,
- .sal_puts = snt_hw_puts_buffered,
- .sal_getc = snt_intr_getc,
- .sal_input_pending = snt_intr_input_pending,
- .sal_wakeup_transmit = sn_transmit_chars
-};
-
-/* the console does output in two distinctly different ways:
- * synchronous (raw) and asynchronous (buffered). initally, early_printk
- * does synchronous output. any data written goes directly to the SAL
- * to be output (incidentally, it is internally buffered by the SAL)
- * after interrupts and timers are initialized and available for use,
- * the console init code switches to asynchronous output. this is
- * also the earliest opportunity to begin polling for console input.
- * after console initialization, console output and tty (serial port)
- * output is buffered and sent to the SAL asynchronously (either by
- * timer callback or by UART interrupt) */
-
-
-/* routines for running the console in polling mode */
-
-/**
- * snt_poll_getc - Get a character from the console in polling mode
- *
- */
-static int
-snt_poll_getc(void)
-{
- int ch;
-
- ia64_sn_console_getc(&ch);
- return ch;
-}
-
-/**
- * snt_poll_input_pending - Check if any input is waiting - polling mode.
- *
- */
-static int
-snt_poll_input_pending(void)
-{
- int status, input;
-
- status = ia64_sn_console_check(&input);
- return !status && input;
-}
-
-/* routines for running the console on the simulator */
-
-/**
- * snt_sim_puts - send to the console, used in simulator mode
- * @str: String to send
- * @count: length of string
- *
- */
-static int
-snt_sim_puts(const char *str, int count)
-{
- int counter = count;
-
-#ifdef FLAG_DIRECT_CONSOLE_WRITES
- /* This is an easy way to pre-pend the output to know whether the output
- * was done via sal or directly */
- writeb('[', master_node_bedrock_address + (UART_TX << 3));
- writeb('+', master_node_bedrock_address + (UART_TX << 3));
- writeb(']', master_node_bedrock_address + (UART_TX << 3));
- writeb(' ', master_node_bedrock_address + (UART_TX << 3));
-#endif /* FLAG_DIRECT_CONSOLE_WRITES */
- while (counter > 0) {
- writeb(*str, master_node_bedrock_address + (UART_TX << 3));
- counter--;
- str++;
- }
- return count;
-}
-
-/**
- * snt_sim_getc - Get character from console in simulator mode
- *
- */
-static int
-snt_sim_getc(void)
-{
- return readb(master_node_bedrock_address + (UART_RX << 3));
-}
-
-/**
- * snt_sim_input_pending - Check if there is input pending in simulator mode
- *
- */
-static int
-snt_sim_input_pending(void)
-{
- return readb(master_node_bedrock_address +
- (UART_LSR << 3)) & UART_LSR_DR;
-}
-
-/* routines for an interrupt driven console (normal) */
-
-/**
- * snt_intr_getc - Get a character from the console, interrupt mode
- *
- */
-static int
-snt_intr_getc(void)
-{
- return ia64_sn_console_readc();
-}
-
-/**
- * snt_intr_input_pending - Check if input is pending, interrupt mode
- *
- */
-static int
-snt_intr_input_pending(void)
-{
- return ia64_sn_console_intr_status() & SAL_CONSOLE_INTR_RECV;
-}
-
-/* these functions are polled and interrupt */
-
-/**
- * snt_hw_puts_raw - Send raw string to the console, polled or interrupt mode
- * @s: String
- * @len: Length
- *
- */
-static int
-snt_hw_puts_raw(const char *s, int len)
-{
- /* this will call the PROM and not return until this is done */
- return ia64_sn_console_putb(s, len);
-}
-
-/**
- * snt_hw_puts_buffered - Send string to console, polled or interrupt mode
- * @s: String
- * @len: Length
- *
- */
-static int
-snt_hw_puts_buffered(const char *s, int len)
-{
- /* queue data to the PROM */
- return ia64_sn_console_xmit_chars((char *)s, len);
-}
-
-/* uart interface structs
- * These functions are associated with the uart_port that the serial core
- * infrastructure calls.
- *
- * Note: Due to how the console works, many routines are no-ops.
- */
-
-/**
- * snp_type - What type of console are we?
- * @port: Port to operate with (we ignore since we only have one port)
- *
- */
-static const char *
-snp_type(struct uart_port *port)
-{
- return ("SGI SN L1");
-}
-
-/**
- * snp_tx_empty - Is the transmitter empty? We pretend we're always empty
- * @port: Port to operate on (we ignore since we only have one port)
- *
- */
-static unsigned int
-snp_tx_empty(struct uart_port *port)
-{
- return 1;
-}
-
-/**
- * snp_stop_tx - stop the transmitter - no-op for us
- * @port: Port to operat eon - we ignore - no-op function
- * @tty_stop: Set to 1 if called via uart_stop
- *
- */
-static void
-snp_stop_tx(struct uart_port *port, unsigned int tty_stop)
-{
-}
-
-/**
- * snp_release_port - Free i/o and resources for port - no-op for us
- * @port: Port to operate on - we ignore - no-op function
- *
- */
-static void
-snp_release_port(struct uart_port *port)
-{
-}
-
-/**
- * snp_enable_ms - Force modem status interrupts on - no-op for us
- * @port: Port to operate on - we ignore - no-op function
- *
- */
-static void
-snp_enable_ms(struct uart_port *port)
-{
-}
-
-/**
- * snp_shutdown - shut down the port - free irq and disable - no-op for us
- * @port: Port to shut down - we ignore
- *
- */
-static void
-snp_shutdown(struct uart_port *port)
-{
-}
-
-/**
- * snp_set_mctrl - set control lines (dtr, rts, etc) - no-op for our console
- * @port: Port to operate on - we ignore
- * @mctrl: Lines to set/unset - we ignore
- *
- */
-static void
-snp_set_mctrl(struct uart_port *port, unsigned int mctrl)
-{
-}
-
-/**
- * snp_get_mctrl - get contorl line info, we just return a static value
- * @port: port to operate on - we only have one port so we ignore this
- *
- */
-static unsigned int
-snp_get_mctrl(struct uart_port *port)
-{
- return TIOCM_CAR | TIOCM_RNG | TIOCM_DSR | TIOCM_CTS;
-}
-
-/**
- * snp_stop_rx - Stop the receiver - we ignor ethis
- * @port: Port to operate on - we ignore
- *
- */
-static void
-snp_stop_rx(struct uart_port *port)
-{
-}
-
-/**
- * snp_start_tx - Start transmitter
- * @port: Port to operate on
- * @tty_stop: Set to 1 if called via uart_start
- *
- */
-static void
-snp_start_tx(struct uart_port *port, unsigned int tty_stop)
-{
- if (sal_console_port.sc_ops->sal_wakeup_transmit)
- sal_console_port.sc_ops->sal_wakeup_transmit(&sal_console_port, TRANSMIT_BUFFERED);
-
-}
-
-/**
- * snp_break_ctl - handle breaks - ignored by us
- * @port: Port to operate on
- * @break_state: Break state
- *
- */
-static void
-snp_break_ctl(struct uart_port *port, int break_state)
-{
-}
-
-/**
- * snp_startup - Start up the serial port - always return 0 (We're always on)
- * @port: Port to operate on
- *
- */
-static int
-snp_startup(struct uart_port *port)
-{
- return 0;
-}
-
-/**
- * snp_set_termios - set termios stuff - we ignore these
- * @port: port to operate on
- * @termios: New settings
- * @termios: Old
- *
- */
-static void
-snp_set_termios(struct uart_port *port, struct termios *termios,
- struct termios *old)
-{
-}
-
-/**
- * snp_request_port - allocate resources for port - ignored by us
- * @port: port to operate on
- *
- */
-static int
-snp_request_port(struct uart_port *port)
-{
- return 0;
-}
-
-/**
- * snp_config_port - allocate resources, set up - we ignore, we're always on
- * @port: Port to operate on
- * @flags: flags used for port setup
- *
- */
-static void
-snp_config_port(struct uart_port *port, int flags)
-{
-}
-
-/* Associate the uart functions above - given to serial core */
-
-static struct uart_ops sn_console_ops = {
- .tx_empty = snp_tx_empty,
- .set_mctrl = snp_set_mctrl,
- .get_mctrl = snp_get_mctrl,
- .stop_tx = snp_stop_tx,
- .start_tx = snp_start_tx,
- .stop_rx = snp_stop_rx,
- .enable_ms = snp_enable_ms,
- .break_ctl = snp_break_ctl,
- .startup = snp_startup,
- .shutdown = snp_shutdown,
- .set_termios = snp_set_termios,
- .pm = NULL,
- .type = snp_type,
- .release_port = snp_release_port,
- .request_port = snp_request_port,
- .config_port = snp_config_port,
- .verify_port = NULL,
-};
-
-/* End of uart struct functions and defines */
-
-#ifdef DEBUG
-
-/**
- * sn_debug_printf - close to hardware debugging printf
- * @fmt: printf format
- *
- * This is as "close to the metal" as we can get, used when the driver
- * itself may be broken.
- *
- */
-static int
-sn_debug_printf(const char *fmt, ...)
-{
- static char printk_buf[1024];
- int printed_len;
- va_list args;
-
- va_start(args, fmt);
- printed_len = vsnprintf(printk_buf, sizeof (printk_buf), fmt, args);
-
- if (!sal_console_port.sc_ops) {
- if (IS_RUNNING_ON_SIMULATOR())
- sal_console_port.sc_ops = &sim_ops;
- else
- sal_console_port.sc_ops = &poll_ops;
-
- early_sn_setup();
- }
- sal_console_port.sc_ops->sal_puts_raw(printk_buf, printed_len);
-
- va_end(args);
- return printed_len;
-}
-#endif /* DEBUG */
-
-/*
- * Interrupt handling routines.
- */
-
-
-/**
- * sn_receive_chars - Grab characters, pass them to tty layer
- * @port: Port to operate on
- * @regs: Saved registers (needed by uart_handle_sysrq_char)
- *
- * Note: If we're not registered with the serial core infrastructure yet,
- * we don't try to send characters to it...
- *
- */
-static void
-sn_receive_chars(struct sn_cons_port *port, struct pt_regs *regs)
-{
- int ch;
- struct tty_struct *tty;
-
- if (!port) {
- printk(KERN_ERR "sn_receive_chars - port NULL so can't receieve\n");
- return;
- }
-
- if (!port->sc_ops) {
- printk(KERN_ERR "sn_receive_chars - port->sc_ops NULL so can't receieve\n");
- return;
- }
-
- if (port->sc_port.info) {
- /* The serial_core stuffs are initilized, use them */
- tty = port->sc_port.info->tty;
- }
- else {
- /* Not registered yet - can't pass to tty layer. */
- tty = NULL;
- }
-
- while (port->sc_ops->sal_input_pending()) {
- ch = port->sc_ops->sal_getc();
- if (ch < 0) {
- printk(KERN_ERR "sn_console: An error occured while "
- "obtaining data from the console (0x%0x)\n", ch);
- break;
- }
-#if defined(CONFIG_SERIAL_SGI_L1_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
- if (uart_handle_sysrq_char(&port->sc_port, ch, regs))
- continue;
-#endif /* CONFIG_SERIAL_SGI_L1_CONSOLE && CONFIG_MAGIC_SYSRQ */
-
- /* record the character to pass up to the tty layer */
- if (tty) {
- *tty->flip.char_buf_ptr = ch;
- *tty->flip.flag_buf_ptr = TTY_NORMAL;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
- if (tty->flip.count == TTY_FLIPBUF_SIZE)
- break;
- }
- else {
- }
- port->sc_port.icount.rx++;
- }
-
- if (tty)
- tty_flip_buffer_push(tty);
-}
-
-/**
- * sn_transmit_chars - grab characters from serial core, send off
- * @port: Port to operate on
- * @raw: Transmit raw or buffered
- *
- * Note: If we're early, before we're registered with serial core, the
- * writes are going through sn_sal_console_write because that's how
- * register_console has been set up. We currently could have asynch
- * polls calling this function due to sn_sal_switch_to_asynch but we can
- * ignore them until we register with the serial core stuffs.
- *
- */
-static void
-sn_transmit_chars(struct sn_cons_port *port, int raw)
-{
- int xmit_count, tail, head, loops, ii;
- int result;
- char *start;
- struct circ_buf *xmit;
-
- if (!port)
- return;
-
- BUG_ON(!port->sc_is_asynch);
-
- if (port->sc_port.info) {
- /* We're initilized, using serial core infrastructure */
- xmit = &port->sc_port.info->xmit;
- }
- else {
- /* Probably sn_sal_switch_to_asynch has been run but serial core isn't
- * initilized yet. Just return. Writes are going through
- * sn_sal_console_write (due to register_console) at this time.
- */
- return;
- }
-
- if (uart_circ_empty(xmit) || uart_tx_stopped(&port->sc_port)) {
- /* Nothing to do. */
- return;
- }
-
- head = xmit->head;
- tail = xmit->tail;
- start = &xmit->buf[tail];
-
- /* twice around gets the tail to the end of the buffer and
- * then to the head, if needed */
- loops = (head < tail) ? 2 : 1;
-
- for (ii = 0; ii < loops; ii++) {
- xmit_count = (head < tail) ?
- (UART_XMIT_SIZE - tail) : (head - tail);
-
- if (xmit_count > 0) {
- if (raw == TRANSMIT_RAW)
- result =
- port->sc_ops->sal_puts_raw(start,
- xmit_count);
- else
- result =
- port->sc_ops->sal_puts(start, xmit_count);
-#ifdef DEBUG
- if (!result)
- DPRINTF("`");
-#endif
- if (result > 0) {
- xmit_count -= result;
- port->sc_port.icount.tx += result;
- tail += result;
- tail &= UART_XMIT_SIZE - 1;
- xmit->tail = tail;
- start = &xmit->buf[tail];
- }
- }
- }
-
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
- uart_write_wakeup(&port->sc_port);
-
- if (uart_circ_empty(xmit))
- snp_stop_tx(&port->sc_port, 0); /* no-op for us */
-}
-
-/**
- * sn_sal_interrupt - Handle console interrupts
- * @irq: irq #, useful for debug statements
- * @dev_id: our pointer to our port (sn_cons_port which contains the uart port)
- * @regs: Saved registers, used by sn_receive_chars for uart_handle_sysrq_char
- *
- */
-static irqreturn_t
-sn_sal_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct sn_cons_port *port = (struct sn_cons_port *) dev_id;
- unsigned long flags;
- int status = ia64_sn_console_intr_status();
-
- if (!port)
- return IRQ_NONE;
-
- spin_lock_irqsave(&port->sc_port.lock, flags);
- if (status & SAL_CONSOLE_INTR_RECV) {
- sn_receive_chars(port, regs);
- }
- if (status & SAL_CONSOLE_INTR_XMIT) {
- sn_transmit_chars(port, TRANSMIT_BUFFERED);
- }
- spin_unlock_irqrestore(&port->sc_port.lock, flags);
- return IRQ_HANDLED;
-}
-
-/**
- * sn_sal_connect_interrupt - Request interrupt, handled by sn_sal_interrupt
- * @port: Our sn_cons_port (which contains the uart port)
- *
- * returns the console irq if interrupt is successfully registered, else 0
- *
- */
-static int
-sn_sal_connect_interrupt(struct sn_cons_port *port)
-{
- if (request_irq(SGI_UART_VECTOR, sn_sal_interrupt, SA_INTERRUPT,
- "SAL console driver", port) >= 0) {
- return SGI_UART_VECTOR;
- }
-
- printk(KERN_INFO "sn_console: console proceeding in polled mode\n");
- return 0;
-}
-
-/**
- * sn_sal_timer_poll - this function handles polled console mode
- * @data: A pointer to our sn_cons_port (which contains the uart port)
- *
- * data is the pointer that init_timer will store for us. This function is
- * associated with init_timer to see if there is any console traffic.
- * Obviously not used in interrupt mode
- *
- */
-static void
-sn_sal_timer_poll(unsigned long data)
-{
- struct sn_cons_port *port = (struct sn_cons_port *) data;
- unsigned long flags;
-
- if (!port)
- return;
-
- if (!port->sc_port.irq) {
- spin_lock_irqsave(&port->sc_port.lock, flags);
- sn_receive_chars(port, NULL);
- sn_transmit_chars(port, TRANSMIT_RAW);
- spin_unlock_irqrestore(&port->sc_port.lock, flags);
- mod_timer(&port->sc_timer,
- jiffies + port->sc_interrupt_timeout);
- }
-}
-
-/*
- * Boot-time initialization code
- */
-
-/**
- * sn_sal_switch_to_asynch - Switch to async mode (as opposed to synch)
- * @port: Our sn_cons_port (which contains the uart port)
- *
- * So this is used by sn_sal_serial_console_init (early on, before we're
- * registered with serial core). It's also used by sn_sal_module_init
- * right after we've registered with serial core. The later only happens
- * if we didn't already come through here via sn_sal_serial_console_init.
- *
- */
-static void __init
-sn_sal_switch_to_asynch(struct sn_cons_port *port)
-{
- unsigned long flags;
-
- if (!port)
- return;
-
- DPRINTF("sn_console: about to switch to asynchronous console\n");
-
- /* without early_printk, we may be invoked late enough to race
- * with other cpus doing console IO at this point, however
- * console interrupts will never be enabled */
- spin_lock_irqsave(&port->sc_port.lock, flags);
-
- /* early_printk invocation may have done this for us */
- if (!port->sc_ops) {
- if (IS_RUNNING_ON_SIMULATOR())
- port->sc_ops = &sim_ops;
- else
- port->sc_ops = &poll_ops;
- }
-
- /* we can't turn on the console interrupt (as request_irq
- * calls kmalloc, which isn't set up yet), so we rely on a
- * timer to poll for input and push data from the console
- * buffer.
- */
- init_timer(&port->sc_timer);
- port->sc_timer.function = sn_sal_timer_poll;
- port->sc_timer.data = (unsigned long) port;
-
- if (IS_RUNNING_ON_SIMULATOR())
- port->sc_interrupt_timeout = 6;
- else {
- /* 960cps / 16 char FIFO = 60HZ
- * HZ / (SN_SAL_FIFO_SPEED_CPS / SN_SAL_FIFO_DEPTH) */
- port->sc_interrupt_timeout =
- HZ * SN_SAL_UART_FIFO_DEPTH / SN_SAL_UART_FIFO_SPEED_CPS;
- }
- mod_timer(&port->sc_timer, jiffies + port->sc_interrupt_timeout);
-
- port->sc_is_asynch = 1;
- spin_unlock_irqrestore(&port->sc_port.lock, flags);
-}
-
-/**
- * sn_sal_switch_to_interrupts - Switch to interrupt driven mode
- * @port: Our sn_cons_port (which contains the uart port)
- *
- * In sn_sal_module_init, after we're registered with serial core and
- * the port is added, this function is called to switch us to interrupt
- * mode. We were previously in asynch/polling mode (using init_timer).
- *
- * We attempt to switch to interrupt mode here by calling
- * sn_sal_connect_interrupt. If that works out, we enable receive interrupts.
- */
-static void __init
-sn_sal_switch_to_interrupts(struct sn_cons_port *port)
-{
- int irq;
- unsigned long flags;
-
- if (!port)
- return;
-
- DPRINTF("sn_console: switching to interrupt driven console\n");
-
- spin_lock_irqsave(&port->sc_port.lock, flags);
-
- irq = sn_sal_connect_interrupt(port);
-
- if (irq) {
- port->sc_port.irq = irq;
- port->sc_ops = &intr_ops;
-
- /* turn on receive interrupts */
- ia64_sn_console_intr_enable(SAL_CONSOLE_INTR_RECV);
- }
- spin_unlock_irqrestore(&port->sc_port.lock, flags);
-}
-
-/*
- * Kernel console definitions
- */
-
-#ifdef CONFIG_SERIAL_SGI_L1_CONSOLE
-static void sn_sal_console_write(struct console *, const char *, unsigned);
-static int __init sn_sal_console_setup(struct console *, char *);
-extern struct uart_driver sal_console_uart;
-extern struct tty_driver *uart_console_device(struct console *, int *);
-
-static struct console sal_console = {
- .name = DEVICE_NAME,
- .write = sn_sal_console_write,
- .device = uart_console_device,
- .setup = sn_sal_console_setup,
- .index = -1, /* unspecified */
- .data = &sal_console_uart,
-};
-
-#define SAL_CONSOLE &sal_console
-#else
-#define SAL_CONSOLE 0
-#endif /* CONFIG_SERIAL_SGI_L1_CONSOLE */
-
-static struct uart_driver sal_console_uart = {
- .owner = THIS_MODULE,
- .driver_name = "sn_console",
- .dev_name = DEVICE_NAME,
- .major = 0, /* major/minor set at registration time per USE_DYNAMIC_MINOR */
- .minor = 0,
- .nr = 1, /* one port */
- .cons = SAL_CONSOLE,
-};
-
-/**
- * sn_sal_module_init - When the kernel loads us, get us rolling w/ serial core
- *
- * Before this is called, we've been printing kernel messages in a special
- * early mode not making use of the serial core infrastructure. When our
- * driver is loaded for real, we register the driver and port with serial
- * core and try to enable interrupt driven mode.
- *
- */
-static int __init
-sn_sal_module_init(void)
-{
- int retval;
-
- printk(KERN_INFO "sn_console: Console driver init\n");
-
- if (!ia64_platform_is("sn2"))
- return -ENODEV;
-
- if (USE_DYNAMIC_MINOR == 1) {
- misc.minor = MISC_DYNAMIC_MINOR;
- misc.name = DEVICE_NAME_DYNAMIC;
- retval = misc_register(&misc);
- if (retval != 0) {
- printk("Failed to register console device using misc_register.\n");
- return -ENODEV;
- }
- sal_console_uart.major = MISC_MAJOR;
- sal_console_uart.minor = misc.minor;
- }
- else {
- sal_console_uart.major = DEVICE_MAJOR;
- sal_console_uart.minor = DEVICE_MINOR;
- }
-
- /* We register the driver and the port before switching to interrupts
- * or async above so the proper uart structures are populated */
-
- if (uart_register_driver(&sal_console_uart) < 0) {
- printk("ERROR sn_sal_module_init failed uart_register_driver, line %d\n",
- __LINE__);
- return -ENODEV;
- }
-
- sal_console_port.sc_port.lock = SPIN_LOCK_UNLOCKED;
-
- /* Setup the port struct with the minimum needed */
- sal_console_port.sc_port.membase = (char *)1; /* just needs to be non-zero */
- sal_console_port.sc_port.type = PORT_16550A;
- sal_console_port.sc_port.fifosize = SN_SAL_MAX_CHARS;
- sal_console_port.sc_port.ops = &sn_console_ops;
- sal_console_port.sc_port.line = 0;
-
- if (uart_add_one_port(&sal_console_uart, &sal_console_port.sc_port) < 0) {
- /* error - not sure what I'd do - so I'll do nothing */
- printk(KERN_ERR "%s: unable to add port\n", __FUNCTION__);
- }
-
- /* when this driver is compiled in, the console initialization
- * will have already switched us into asynchronous operation
- * before we get here through the module initcalls */
- if (!sal_console_port.sc_is_asynch) {
- sn_sal_switch_to_asynch(&sal_console_port);
- }
-
- /* at this point (module_init) we can try to turn on interrupts */
- if (!IS_RUNNING_ON_SIMULATOR()) {
- sn_sal_switch_to_interrupts(&sal_console_port);
- }
- return 0;
-}
-
-/**
- * sn_sal_module_exit - When we're unloaded, remove the driver/port
- *
- */
-static void __exit
-sn_sal_module_exit(void)
-{
- del_timer_sync(&sal_console_port.sc_timer);
- uart_remove_one_port(&sal_console_uart, &sal_console_port.sc_port);
- uart_unregister_driver(&sal_console_uart);
- misc_deregister(&misc);
-}
-
-module_init(sn_sal_module_init);
-module_exit(sn_sal_module_exit);
-
-#ifdef CONFIG_SERIAL_SGI_L1_CONSOLE
-
-/**
- * puts_raw_fixed - sn_sal_console_write helper for adding \r's as required
- * @puts_raw : puts function to do the writing
- * @s: input string
- * @count: length
- *
- * We need a \r ahead of every \n for direct writes through
- * ia64_sn_console_putb (what sal_puts_raw below actually does).
- *
- */
-
-static void puts_raw_fixed(int (*puts_raw) (const char *s, int len), const char *s, int count)
-{
- const char *s1;
-
- /* Output '\r' before each '\n' */
- while ((s1 = memchr(s, '\n', count)) != NULL) {
- puts_raw(s, s1 - s);
- puts_raw("\r\n", 2);
- count -= s1 + 1 - s;
- s = s1 + 1;
- }
- puts_raw(s, count);
-}
-
-/**
- * sn_sal_console_write - Print statements before serial core available
- * @console: Console to operate on - we ignore since we have just one
- * @s: String to send
- * @count: length
- *
- * This is referenced in the console struct. It is used for early
- * console printing before we register with serial core and for things
- * such as kdb. The console_lock must be held when we get here.
- *
- * This function has some code for trying to print output even if the lock
- * is held. We try to cover the case where a lock holder could have died.
- * We don't use this special case code if we're not registered with serial
- * core yet. After we're registered with serial core, the only time this
- * function would be used is for high level kernel output like magic sys req,
- * kdb, and printk's.
- */
-static void
-sn_sal_console_write(struct console *co, const char *s, unsigned count)
-{
- unsigned long flags = 0;
- struct sn_cons_port *port = &sal_console_port;
-#if defined(CONFIG_SMP) || defined(CONFIG_PREEMPT)
- static int stole_lock = 0;
-#endif
-
- BUG_ON(!port->sc_is_asynch);
-
- /* We can't look at the xmit buffer if we're not registered with serial core
- * yet. So only do the fancy recovery after registering
- */
- if (port->sc_port.info) {
-
- /* somebody really wants this output, might be an
- * oops, kdb, panic, etc. make sure they get it. */
-#if defined(CONFIG_SMP) || defined(CONFIG_PREEMPT)
- if (spin_is_locked(&port->sc_port.lock)) {
- int lhead = port->sc_port.info->xmit.head;
- int ltail = port->sc_port.info->xmit.tail;
- int counter, got_lock = 0;
-
- /*
- * We attempt to determine if someone has died with the
- * lock. We wait ~20 secs after the head and tail ptrs
- * stop moving and assume the lock holder is not functional
- * and plow ahead. If the lock is freed within the time out
- * period we re-get the lock and go ahead normally. We also
- * remember if we have plowed ahead so that we don't have
- * to wait out the time out period again - the asumption
- * is that we will time out again.
- */
-
- for (counter = 0; counter < 150; mdelay(125), counter++) {
- if (!spin_is_locked(&port->sc_port.lock) || stole_lock) {
- if (!stole_lock) {
- spin_lock_irqsave(&port->sc_port.lock, flags);
- got_lock = 1;
- }
- break;
- }
- else {
- /* still locked */
- if ((lhead != port->sc_port.info->xmit.head) || (ltail != port->sc_port.info->xmit.tail)) {
- lhead = port->sc_port.info->xmit.head;
- ltail = port->sc_port.info->xmit.tail;
- counter = 0;
- }
- }
- }
- /* flush anything in the serial core xmit buffer, raw */
- sn_transmit_chars(port, 1);
- if (got_lock) {
- spin_unlock_irqrestore(&port->sc_port.lock, flags);
- stole_lock = 0;
- }
- else {
- /* fell thru */
- stole_lock = 1;
- }
- puts_raw_fixed(port->sc_ops->sal_puts_raw, s, count);
- }
- else {
- stole_lock = 0;
-#endif
- spin_lock_irqsave(&port->sc_port.lock, flags);
- sn_transmit_chars(port, 1);
- spin_unlock_irqrestore(&port->sc_port.lock, flags);
-
- puts_raw_fixed(port->sc_ops->sal_puts_raw, s, count);
- }
- }
- else {
- /* Not yet registered with serial core - simple case */
- puts_raw_fixed(port->sc_ops->sal_puts_raw, s, count);
- }
-}
-
-
-/**
- * sn_sal_console_setup - Set up console for early printing
- * @co: Console to work with
- * @options: Options to set
- *
- * Altix console doesn't do anything with baud rates, etc, anyway.
- *
- * This isn't required since not providing the setup function in the
- * console struct is ok. However, other patches like KDB plop something
- * here so providing it is easier.
- *
- */
-static int __init
-sn_sal_console_setup(struct console *co, char *options)
-{
- return 0;
-}
-
-/**
- * sn_sal_console_write_early - simple early output routine
- * @co - console struct
- * @s - string to print
- * @count - count
- *
- * Simple function to provide early output, before even
- * sn_sal_serial_console_init is called. Referenced in the
- * console struct registerd in sn_serial_console_early_setup.
- *
- */
-static void __init
-sn_sal_console_write_early(struct console *co, const char *s, unsigned count)
-{
- puts_raw_fixed(sal_console_port.sc_ops->sal_puts_raw, s, count);
-}
-
-/* Used for very early console printing - again, before
- * sn_sal_serial_console_init is run */
-static struct console sal_console_early __initdata = {
- .name = "sn_sal",
- .write = sn_sal_console_write_early,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-/**
- * sn_serial_console_early_setup - Sets up early console output support
- *
- * Register a console early on... This is for output before even
- * sn_sal_serial_cosnole_init is called. This function is called from
- * setup.c. This allows us to do really early polled writes. When
- * sn_sal_serial_console_init is called, this console is unregistered
- * and a new one registered.
- */
-int __init
-sn_serial_console_early_setup(void)
-{
- if (!ia64_platform_is("sn2"))
- return -1;
-
- if (IS_RUNNING_ON_SIMULATOR())
- sal_console_port.sc_ops = &sim_ops;
- else
- sal_console_port.sc_ops = &poll_ops;
-
- early_sn_setup(); /* Find SAL entry points */
- register_console(&sal_console_early);
-
- return 0;
-}
-
-
-/**
- * sn_sal_serial_console_init - Early console output - set up for register
- *
- * This function is called when regular console init happens. Because we
- * support even earlier console output with sn_serial_console_early_setup
- * (called from setup.c directly), this function unregisters the really
- * early console.
- *
- * Note: Even if setup.c doesn't register sal_console_early, unregistering
- * it here doesn't hurt anything.
- *
- */
-static int __init
-sn_sal_serial_console_init(void)
-{
- if (ia64_platform_is("sn2")) {
- sn_sal_switch_to_asynch(&sal_console_port);
- DPRINTF ("sn_sal_serial_console_init : register console\n");
- register_console(&sal_console);
- unregister_console(&sal_console_early);
- }
- return 0;
-}
-
-console_initcall(sn_sal_serial_console_init);
-
-#endif /* CONFIG_SERIAL_SGI_L1_CONSOLE */
+++ /dev/null
-/*
- *
- * Includes for cdc-acm.c
- *
- * Mainly take from usbnet's cdc-ether part
- *
- */
-
-/*
- * CMSPAR, some architectures can't have space and mark parity.
- */
-
-#ifndef CMSPAR
-#define CMSPAR 0
-#endif
-
-/*
- * Major and minor numbers.
- */
-
-#define ACM_TTY_MAJOR 166
-#define ACM_TTY_MINORS 32
-
-/*
- * Requests.
- */
-
-#define USB_RT_ACM (USB_TYPE_CLASS | USB_RECIP_INTERFACE)
-
-#define ACM_REQ_COMMAND 0x00
-#define ACM_REQ_RESPONSE 0x01
-#define ACM_REQ_SET_FEATURE 0x02
-#define ACM_REQ_GET_FEATURE 0x03
-#define ACM_REQ_CLEAR_FEATURE 0x04
-
-#define ACM_REQ_SET_LINE 0x20
-#define ACM_REQ_GET_LINE 0x21
-#define ACM_REQ_SET_CONTROL 0x22
-#define ACM_REQ_SEND_BREAK 0x23
-
-/*
- * IRQs.
- */
-
-#define ACM_IRQ_NETWORK 0x00
-#define ACM_IRQ_LINE_STATE 0x20
-
-/*
- * Output control lines.
- */
-
-#define ACM_CTRL_DTR 0x01
-#define ACM_CTRL_RTS 0x02
-
-/*
- * Input control lines and line errors.
- */
-
-#define ACM_CTRL_DCD 0x01
-#define ACM_CTRL_DSR 0x02
-#define ACM_CTRL_BRK 0x04
-#define ACM_CTRL_RI 0x08
-
-#define ACM_CTRL_FRAMING 0x10
-#define ACM_CTRL_PARITY 0x20
-#define ACM_CTRL_OVERRUN 0x40
-
-/*
- * Line speed and caracter encoding.
- */
-
-struct acm_line {
- __u32 speed;
- __u8 stopbits;
- __u8 parity;
- __u8 databits;
-} __attribute__ ((packed));
-
-/*
- * Internal driver structures.
- */
-
-struct acm {
- struct usb_device *dev; /* the corresponding usb device */
- struct usb_interface *control; /* control interface */
- struct usb_interface *data; /* data interface */
- struct tty_struct *tty; /* the corresponding tty */
- struct urb *ctrlurb, *readurb, *writeurb; /* urbs */
- struct acm_line line; /* line coding (bits, stop, parity) */
- struct work_struct work; /* work queue entry for line discipline waking up */
- struct tasklet_struct bh; /* rx processing */
- unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */
- unsigned int ctrlout; /* output control lines (DTR, RTS) */
- unsigned int writesize; /* max packet size for the output bulk endpoint */
- unsigned int used; /* someone has this acm's device open */
- unsigned int minor; /* acm minor number */
- unsigned char throttle; /* throttled by tty layer */
- unsigned char clocal; /* termios CLOCAL */
- unsigned char ready_for_write; /* write urb can be used */
-};
-
-/* "Union Functional Descriptor" from CDC spec 5.2.3.X */
-struct union_desc {
- u8 bLength;
- u8 bDescriptorType;
- u8 bDescriptorSubType;
-
- u8 bMasterInterface0;
- u8 bSlaveInterface0;
- /* ... and there could be other slave interfaces */
-} __attribute__ ((packed));
-
-#define CDC_UNION_TYPE 0x06
-#define CDC_DATA_INTERFACE_TYPE 0x0a
-
+++ /dev/null
-/*
- * drivers/usb/core/driverfs.c
- *
- * (C) Copyright 2002 David Brownell
- * (C) Copyright 2002 Greg Kroah-Hartman
- * (C) Copyright 2002 IBM Corp.
- *
- * All of the driverfs file attributes for usb devices and interfaces.
- *
- */
-
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-
-#ifdef CONFIG_USB_DEBUG
- #define DEBUG
-#else
- #undef DEBUG
-#endif
-#include <linux/usb.h>
-
-#include "usb.h"
-
-/* Active configuration fields */
-#define usb_actconfig_show(field, multiplier, format_string) \
-static ssize_t show_##field (struct device *dev, char *buf) \
-{ \
- struct usb_device *udev; \
- \
- udev = to_usb_device (dev); \
- if (udev->actconfig) \
- return sprintf (buf, format_string, \
- udev->actconfig->desc.field * multiplier); \
- else \
- return 0; \
-} \
-
-#define usb_actconfig_attr(field, multiplier, format_string) \
-usb_actconfig_show(field, multiplier, format_string) \
-static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL);
-
-usb_actconfig_attr (bNumInterfaces, 1, "%2d\n")
-usb_actconfig_attr (bmAttributes, 1, "%2x\n")
-usb_actconfig_attr (bMaxPower, 2, "%3dmA\n")
-
-/* configuration value is always present, and r/w */
-usb_actconfig_show(bConfigurationValue, 1, "%u\n");
-
-static ssize_t
-set_bConfigurationValue (struct device *dev, const char *buf, size_t count)
-{
- struct usb_device *udev = udev = to_usb_device (dev);
- int config, value;
-
- if (sscanf (buf, "%u", &config) != 1 || config > 255)
- return -EINVAL;
- down(&udev->serialize);
- value = usb_set_configuration (udev, config);
- up(&udev->serialize);
- return (value < 0) ? value : count;
-}
-
-static DEVICE_ATTR(bConfigurationValue, S_IRUGO | S_IWUSR,
- show_bConfigurationValue, set_bConfigurationValue);
-
-/* String fields */
-#define usb_string_attr(name, field) \
-static ssize_t show_##name(struct device *dev, char *buf) \
-{ \
- struct usb_device *udev; \
- int len; \
- \
- udev = to_usb_device (dev); \
- len = usb_string(udev, udev->descriptor.field, buf, PAGE_SIZE); \
- if (len < 0) \
- return 0; \
- buf[len] = '\n'; \
- buf[len+1] = 0; \
- return len+1; \
-} \
-static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
-
-usb_string_attr(product, iProduct);
-usb_string_attr(manufacturer, iManufacturer);
-usb_string_attr(serial, iSerialNumber);
-
-static ssize_t
-show_speed (struct device *dev, char *buf)
-{
- struct usb_device *udev;
- char *speed;
-
- udev = to_usb_device (dev);
-
- switch (udev->speed) {
- case USB_SPEED_LOW:
- speed = "1.5";
- break;
- case USB_SPEED_UNKNOWN:
- case USB_SPEED_FULL:
- speed = "12";
- break;
- case USB_SPEED_HIGH:
- speed = "480";
- break;
- default:
- speed = "unknown";
- }
- return sprintf (buf, "%s\n", speed);
-}
-static DEVICE_ATTR(speed, S_IRUGO, show_speed, NULL);
-
-static ssize_t
-show_devnum (struct device *dev, char *buf)
-{
- struct usb_device *udev;
-
- udev = to_usb_device (dev);
- return sprintf (buf, "%d\n", udev->devnum);
-}
-static DEVICE_ATTR(devnum, S_IRUGO, show_devnum, NULL);
-
-static ssize_t
-show_version (struct device *dev, char *buf)
-{
- struct usb_device *udev;
-
- udev = to_usb_device (dev);
- return sprintf (buf, "%2x.%02x\n", udev->descriptor.bcdUSB >> 8,
- udev->descriptor.bcdUSB & 0xff);
-}
-static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
-
-static ssize_t
-show_maxchild (struct device *dev, char *buf)
-{
- struct usb_device *udev;
-
- udev = to_usb_device (dev);
- return sprintf (buf, "%d\n", udev->maxchild);
-}
-static DEVICE_ATTR(maxchild, S_IRUGO, show_maxchild, NULL);
-
-/* Descriptor fields */
-#define usb_descriptor_attr(field, format_string) \
-static ssize_t \
-show_##field (struct device *dev, char *buf) \
-{ \
- struct usb_device *udev; \
- \
- udev = to_usb_device (dev); \
- return sprintf (buf, format_string, udev->descriptor.field); \
-} \
-static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL);
-
-usb_descriptor_attr (idVendor, "%04x\n")
-usb_descriptor_attr (idProduct, "%04x\n")
-usb_descriptor_attr (bcdDevice, "%04x\n")
-usb_descriptor_attr (bDeviceClass, "%02x\n")
-usb_descriptor_attr (bDeviceSubClass, "%02x\n")
-usb_descriptor_attr (bDeviceProtocol, "%02x\n")
-usb_descriptor_attr (bNumConfigurations, "%d\n")
-
-
-void usb_create_driverfs_dev_files (struct usb_device *udev)
-{
- struct device *dev = &udev->dev;
-
- /* current configuration's attributes */
- device_create_file (dev, &dev_attr_bNumInterfaces);
- device_create_file (dev, &dev_attr_bConfigurationValue);
- device_create_file (dev, &dev_attr_bmAttributes);
- device_create_file (dev, &dev_attr_bMaxPower);
-
- /* device attributes */
- device_create_file (dev, &dev_attr_idVendor);
- device_create_file (dev, &dev_attr_idProduct);
- device_create_file (dev, &dev_attr_bcdDevice);
- device_create_file (dev, &dev_attr_bDeviceClass);
- device_create_file (dev, &dev_attr_bDeviceSubClass);
- device_create_file (dev, &dev_attr_bDeviceProtocol);
- device_create_file (dev, &dev_attr_bNumConfigurations);
-
- /* speed varies depending on how you connect the device */
- device_create_file (dev, &dev_attr_speed);
- // FIXME iff there are other speed configs, show how many
-
- if (udev->descriptor.iManufacturer)
- device_create_file (dev, &dev_attr_manufacturer);
- if (udev->descriptor.iProduct)
- device_create_file (dev, &dev_attr_product);
- if (udev->descriptor.iSerialNumber)
- device_create_file (dev, &dev_attr_serial);
-
- device_create_file (dev, &dev_attr_devnum);
- device_create_file (dev, &dev_attr_version);
- device_create_file (dev, &dev_attr_maxchild);
-}
-
-/* Interface fields */
-#define usb_intf_attr(field, format_string) \
-static ssize_t \
-show_##field (struct device *dev, char *buf) \
-{ \
- struct usb_interface *intf = to_usb_interface (dev); \
- \
- return sprintf (buf, format_string, intf->cur_altsetting->desc.field); \
-} \
-static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL);
-
-usb_intf_attr (bInterfaceNumber, "%02x\n")
-usb_intf_attr (bAlternateSetting, "%2d\n")
-usb_intf_attr (bNumEndpoints, "%02x\n")
-usb_intf_attr (bInterfaceClass, "%02x\n")
-usb_intf_attr (bInterfaceSubClass, "%02x\n")
-usb_intf_attr (bInterfaceProtocol, "%02x\n")
-usb_intf_attr (iInterface, "%02x\n")
-
-void usb_create_driverfs_intf_files (struct usb_interface *intf)
-{
- device_create_file (&intf->dev, &dev_attr_bInterfaceNumber);
- device_create_file (&intf->dev, &dev_attr_bAlternateSetting);
- device_create_file (&intf->dev, &dev_attr_bNumEndpoints);
- device_create_file (&intf->dev, &dev_attr_bInterfaceClass);
- device_create_file (&intf->dev, &dev_attr_bInterfaceSubClass);
- device_create_file (&intf->dev, &dev_attr_bInterfaceProtocol);
- device_create_file (&intf->dev, &dev_attr_iInterface);
-}
+++ /dev/null
-/*
- * OHCI HCD (Host Controller Driver) for USB.
- *
- * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
- * (C) Copyright 2002 Hewlett-Packard Company
- *
- * Bus Glue for Sharp LH7A404
- *
- * Written by Christopher Hoover <ch@hpl.hp.com>
- * Based on fragments of previous driver by Rusell King et al.
- *
- * Modified for LH7A404 from ohci-sa1111.c
- * by Durgesh Pattamatta <pattamattad@sharpsec.com>
- *
- * This file is licenced under the GPL.
- */
-
-#include <asm/hardware.h>
-#include <asm/mach-types.h>
-#include <asm/arch/hardware.h>
-
-
-extern int usb_disabled(void);
-
-/*-------------------------------------------------------------------------*/
-
-static void lh7a404_start_hc(struct platform_device *dev)
-{
- printk(KERN_DEBUG __FILE__
- ": starting LH7A404 OHCI USB Controller\n");
-
- /*
- * Now, carefully enable the USB clock, and take
- * the USB host controller out of reset.
- */
- CSC_PWRCNT |= CSC_PWRCNT_USBH_EN; /* Enable clock */
- udelay(1000);
- USBH_CMDSTATUS = OHCI_HCR;
-
- printk(KERN_DEBUG __FILE__
- ": Clock to USB host has been enabled \n");
-}
-
-static void lh7a404_stop_hc(struct platform_device *dev)
-{
- printk(KERN_DEBUG __FILE__
- ": stopping LH7A404 OHCI USB Controller\n");
-
- CSC_PWRCNT &= ~CSC_PWRCNT_USBH_EN; /* Disable clock */
-}
-
-
-/*-------------------------------------------------------------------------*/
-
-
-static irqreturn_t usb_hcd_lh7a404_hcim_irq (int irq, void *__hcd,
- struct pt_regs * r)
-{
- struct usb_hcd *hcd = __hcd;
-
- return usb_hcd_irq(irq, hcd, r);
-}
-
-/*-------------------------------------------------------------------------*/
-
-void usb_hcd_lh7a404_remove (struct usb_hcd *, struct platform_device *);
-
-/* configure so an HC device and id are always provided */
-/* always called with process context; sleeping is OK */
-
-
-/**
- * usb_hcd_lh7a404_probe - initialize LH7A404-based HCDs
- * Context: !in_interrupt()
- *
- * Allocates basic resources for this USB host controller, and
- * then invokes the start() method for the HCD associated with it
- * through the hotplug entry's driver_data.
- *
- */
-int usb_hcd_lh7a404_probe (const struct hc_driver *driver,
- struct usb_hcd **hcd_out,
- struct platform_device *dev)
-{
- int retval;
- struct usb_hcd *hcd = 0;
-
- unsigned int *addr = NULL;
-
- if (!request_mem_region(dev->resource[0].start,
- dev->resource[0].end
- - dev->resource[0].start + 1, hcd_name)) {
- pr_debug("request_mem_region failed");
- return -EBUSY;
- }
-
-
- lh7a404_start_hc(dev);
-
- addr = ioremap(dev->resource[0].start,
- dev->resource[0].end
- - dev->resource[0].start + 1);
- if (!addr) {
- pr_debug("ioremap failed");
- retval = -ENOMEM;
- goto err1;
- }
-
-
- hcd = driver->hcd_alloc ();
- if (hcd == NULL){
- pr_debug ("hcd_alloc failed");
- retval = -ENOMEM;
- goto err1;
- }
-
- if(dev->resource[1].flags != IORESOURCE_IRQ){
- pr_debug ("resource[1] is not IORESOURCE_IRQ");
- retval = -ENOMEM;
- goto err1;
- }
-
- hcd->driver = (struct hc_driver *) driver;
- hcd->description = driver->description;
- hcd->irq = dev->resource[1].start;
- hcd->regs = addr;
- hcd->self.controller = &dev->dev;
-
- retval = hcd_buffer_create (hcd);
- if (retval != 0) {
- pr_debug ("pool alloc fail");
- goto err1;
- }
-
- retval = request_irq (hcd->irq, usb_hcd_lh7a404_hcim_irq, SA_INTERRUPT,
- hcd->description, hcd);
- if (retval != 0) {
- pr_debug("request_irq failed");
- retval = -EBUSY;
- goto err2;
- }
-
- pr_debug ("%s (LH7A404) at 0x%p, irq %d",
- hcd->description, hcd->regs, hcd->irq);
-
- usb_bus_init (&hcd->self);
- hcd->self.op = &usb_hcd_operations;
- hcd->self.hcpriv = (void *) hcd;
- hcd->self.bus_name = "lh7a404";
- hcd->product_desc = "LH7A404 OHCI";
-
- INIT_LIST_HEAD (&hcd->dev_list);
-
- usb_register_bus (&hcd->self);
-
- if ((retval = driver->start (hcd)) < 0)
- {
- usb_hcd_lh7a404_remove(hcd, dev);
- return retval;
- }
-
- *hcd_out = hcd;
- return 0;
-
- err2:
- hcd_buffer_destroy (hcd);
- if (hcd)
- driver->hcd_free(hcd);
- err1:
- lh7a404_stop_hc(dev);
- release_mem_region(dev->resource[0].start,
- dev->resource[0].end
- - dev->resource[0].start + 1);
- return retval;
-}
-
-
-/* may be called without controller electrically present */
-/* may be called with controller, bus, and devices active */
-
-/**
- * usb_hcd_lh7a404_remove - shutdown processing for LH7A404-based HCDs
- * @dev: USB Host Controller being removed
- * Context: !in_interrupt()
- *
- * Reverses the effect of usb_hcd_lh7a404_probe(), first invoking
- * the HCD's stop() method. It is always called from a thread
- * context, normally "rmmod", "apmd", or something similar.
- *
- */
-void usb_hcd_lh7a404_remove (struct usb_hcd *hcd, struct platform_device *dev)
-{
- void *base;
-
- pr_debug ("remove: %s, state %x", hcd->self.bus_name, hcd->state);
-
- if (in_interrupt ())
- BUG ();
-
- hcd->state = USB_STATE_QUIESCING;
-
- pr_debug ("%s: roothub graceful disconnect", hcd->self.bus_name);
- usb_disconnect (&hcd->self.root_hub);
-
- hcd->driver->stop (hcd);
- hcd->state = USB_STATE_HALT;
-
- free_irq (hcd->irq, hcd);
- hcd_buffer_destroy (hcd);
-
- usb_deregister_bus (&hcd->self);
-
- base = hcd->regs;
- hcd->driver->hcd_free (hcd);
-
- lh7a404_stop_hc(dev);
- release_mem_region(dev->resource[0].start,
- dev->resource[0].end
- - dev->resource[0].start + 1);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int __devinit
-ohci_lh7a404_start (struct usb_hcd *hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci (hcd);
- int ret;
-
- ohci_dbg (ohci, "ohci_lh7a404_start, ohci:%p", ohci);
-
- ohci->hcca = dma_alloc_coherent (hcd->self.controller,
- sizeof *ohci->hcca, &ohci->hcca_dma, 0);
- if (!ohci->hcca)
- return -ENOMEM;
-
- ohci_dbg (ohci, "ohci_lh7a404_start, ohci->hcca:%p",
- ohci->hcca);
-
- memset (ohci->hcca, 0, sizeof (struct ohci_hcca));
-
- if ((ret = ohci_mem_init (ohci)) < 0) {
- ohci_stop (hcd);
- return ret;
- }
- ohci->regs = hcd->regs;
-
- if (hc_reset (ohci) < 0) {
- ohci_stop (hcd);
- return -ENODEV;
- }
-
- if (hc_start (ohci) < 0) {
- err ("can't start %s", ohci->hcd.self.bus_name);
- ohci_stop (hcd);
- return -EBUSY;
- }
- create_debug_files (ohci);
-
-#ifdef DEBUG
- ohci_dump (ohci, 1);
-#endif /*DEBUG*/
- return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static const struct hc_driver ohci_lh7a404_hc_driver = {
- .description = hcd_name,
-
- /*
- * generic hardware linkage
- */
- .irq = ohci_irq,
- .flags = HCD_USB11,
-
- /*
- * basic lifecycle operations
- */
- .start = ohci_lh7a404_start,
-#ifdef CONFIG_PM
- /* suspend: ohci_lh7a404_suspend, -- tbd */
- /* resume: ohci_lh7a404_resume, -- tbd */
-#endif /*CONFIG_PM*/
- .stop = ohci_stop,
-
- /*
- * memory lifecycle (except per-request)
- */
- .hcd_alloc = ohci_hcd_alloc,
- .hcd_free = ohci_hcd_free,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ohci_urb_enqueue,
- .urb_dequeue = ohci_urb_dequeue,
- .endpoint_disable = ohci_endpoint_disable,
-
- /*
- * scheduling support
- */
- .get_frame_number = ohci_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = ohci_hub_status_data,
- .hub_control = ohci_hub_control,
-};
-
-/*-------------------------------------------------------------------------*/
-
-static int ohci_hcd_lh7a404_drv_probe(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct usb_hcd *hcd = NULL;
- int ret;
-
- pr_debug ("In ohci_hcd_lh7a404_drv_probe");
-
- if (usb_disabled())
- return -ENODEV;
-
- ret = usb_hcd_lh7a404_probe(&ohci_lh7a404_hc_driver, &hcd, pdev);
-
- if (ret == 0)
- dev_set_drvdata(dev, hcd);
-
- return ret;
-}
-
-static int ohci_hcd_lh7a404_drv_remove(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct usb_hcd *hcd = dev_get_drvdata(dev);
-
- usb_hcd_lh7a404_remove(hcd, pdev);
- dev_set_drvdata(dev, NULL);
- return 0;
-}
- /*TBD*/
-/*static int ohci_hcd_lh7a404_drv_suspend(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct usb_hcd *hcd = dev_get_drvdata(dev);
-
- return 0;
-}
-static int ohci_hcd_lh7a404_drv_resume(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct usb_hcd *hcd = dev_get_drvdata(dev);
-
-
- return 0;
-}
-*/
-
-static struct device_driver ohci_hcd_lh7a404_driver = {
- .name = "lh7a404-ohci",
- .bus = &platform_bus_type,
- .probe = ohci_hcd_lh7a404_drv_probe,
- .remove = ohci_hcd_lh7a404_drv_remove,
- /*.suspend = ohci_hcd_lh7a404_drv_suspend, */
- /*.resume = ohci_hcd_lh7a404_drv_resume, */
-};
-
-static int __init ohci_hcd_lh7a404_init (void)
-{
- pr_debug (DRIVER_INFO " (LH7A404)");
- pr_debug ("block sizes: ed %d td %d\n",
- sizeof (struct ed), sizeof (struct td));
-
- return driver_register(&ohci_hcd_lh7a404_driver);
-}
-
-static void __exit ohci_hcd_lh7a404_cleanup (void)
-{
- driver_unregister(&ohci_hcd_lh7a404_driver);
-}
-
-module_init (ohci_hcd_lh7a404_init);
-module_exit (ohci_hcd_lh7a404_cleanup);
+++ /dev/null
-/***************************************************************************
- * V4L2 driver for SN9C10[12] PC Camera Controllers *
- * *
- * Copyright (C) 2004 by Luca Risolia <luca.risolia@studio.unibo.it> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the Free Software *
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
- ***************************************************************************/
-
-#ifndef _SN9C102_H_
-#define _SN9C102_H_
-
-#include <linux/version.h>
-#include <linux/usb.h>
-#include <linux/videodev.h>
-#include <linux/device.h>
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <linux/wait.h>
-#include <linux/types.h>
-#include <linux/param.h>
-#include <linux/rwsem.h>
-
-#include "sn9c102_sensor.h"
-
-/*****************************************************************************/
-
-#define SN9C102_DEBUG
-#define SN9C102_DEBUG_LEVEL 2
-#define SN9C102_MAX_DEVICES 64
-#define SN9C102_MAX_FRAMES 32
-#define SN9C102_URBS 2
-#define SN9C102_ISO_PACKETS 7
-#define SN9C102_ALTERNATE_SETTING 8
-#define SN9C102_CTRL_TIMEOUT 10*HZ
-
-/*****************************************************************************/
-
-#define SN9C102_MODULE_NAME "V4L2 driver for SN9C10[12] PC Camera Controllers"
-#define SN9C102_MODULE_AUTHOR "(C) 2004 Luca Risolia"
-#define SN9C102_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>"
-#define SN9C102_MODULE_LICENSE "GPL"
-#define SN9C102_MODULE_VERSION "1:1.01-beta"
-#define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 1)
-
-SN9C102_ID_TABLE;
-SN9C102_SENSOR_TABLE;
-
-enum sn9c102_frame_state {
- F_UNUSED,
- F_QUEUED,
- F_GRABBING,
- F_DONE,
- F_ERROR,
-};
-
-struct sn9c102_frame_t {
- void* bufmem;
- struct v4l2_buffer buf;
- enum sn9c102_frame_state state;
- struct list_head frame;
- unsigned long vma_use_count;
-};
-
-enum sn9c102_dev_state {
- DEV_INITIALIZED = 0x01,
- DEV_DISCONNECTED = 0x02,
- DEV_MISCONFIGURED = 0x04,
-};
-
-enum sn9c102_io_method {
- IO_NONE,
- IO_READ,
- IO_MMAP,
-};
-
-enum sn9c102_stream_state {
- STREAM_OFF,
- STREAM_INTERRUPT,
- STREAM_ON,
-};
-
-struct sn9c102_sysfs_attr {
- u8 reg, val, i2c_reg, i2c_val;
-};
-
-static DECLARE_MUTEX(sn9c102_sysfs_lock);
-static DECLARE_RWSEM(sn9c102_disconnect);
-
-struct sn9c102_device {
- struct device dev;
-
- struct video_device* v4ldev;
-
- struct sn9c102_sensor* sensor;
-
- struct usb_device* usbdev;
- struct urb* urb[SN9C102_URBS];
- void* transfer_buffer[SN9C102_URBS];
- u8* control_buffer;
-
- struct sn9c102_frame_t *frame_current, frame[SN9C102_MAX_FRAMES];
- struct list_head inqueue, outqueue;
- u32 frame_count, nbuffers;
-
- enum sn9c102_io_method io;
- enum sn9c102_stream_state stream;
-
- struct sn9c102_sysfs_attr sysfs;
- u16 reg[32];
-
- enum sn9c102_dev_state state;
- u8 users;
-
- struct semaphore dev_sem, fileop_sem;
- spinlock_t queue_lock;
- wait_queue_head_t open, wait_frame, wait_stream;
-};
-
-/*****************************************************************************/
-
-void
-sn9c102_attach_sensor(struct sn9c102_device* cam,
- struct sn9c102_sensor* sensor)
-{
- cam->sensor = sensor;
- cam->sensor->dev = &cam->dev;
- cam->sensor->usbdev = cam->usbdev;
-}
-
-/*****************************************************************************/
-
-#undef DBG
-#undef KDBG
-#ifdef SN9C102_DEBUG
-# define DBG(level, fmt, args...) \
-{ \
- if (debug >= (level)) { \
- if ((level) == 1) \
- dev_err(&cam->dev, fmt "\n", ## args); \
- else if ((level) == 2) \
- dev_info(&cam->dev, fmt "\n", ## args); \
- else if ((level) >= 3) \
- dev_info(&cam->dev, "[%s:%d] " fmt "\n", \
- __FUNCTION__, __LINE__ , ## args); \
- } \
-}
-# define KDBG(level, fmt, args...) \
-{ \
- if (debug >= (level)) { \
- if ((level) == 1 || (level) == 2) \
- pr_info("sn9c102: " fmt "\n", ## args); \
- else if ((level) == 3) \
- pr_debug("sn9c102: [%s:%d] " fmt "\n", __FUNCTION__, \
- __LINE__ , ## args); \
- } \
-}
-#else
-# define KDBG(level, fmt, args...) do {;} while(0);
-# define DBG(level, fmt, args...) do {;} while(0);
-#endif
-
-#undef PDBG
-#define PDBG(fmt, args...) \
-dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args);
-
-#undef PDBGG
-#define PDBGG(fmt, args...) do {;} while(0); /* placeholder */
-
-#endif /* _SN9C102_H_ */
+++ /dev/null
-/***************************************************************************
- * V4L2 driver for SN9C10[12] PC Camera Controllers *
- * *
- * Copyright (C) 2004 by Luca Risolia <luca.risolia@studio.unibo.it> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the Free Software *
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
- ***************************************************************************/
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/moduleparam.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/device.h>
-#include <linux/fs.h>
-#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/stddef.h>
-#include <linux/ioctl.h>
-#include <linux/poll.h>
-#include <linux/stat.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/page-flags.h>
-#include <asm/page.h>
-#include <asm/uaccess.h>
-
-#include "sn9c102.h"
-
-/*****************************************************************************/
-
-MODULE_DEVICE_TABLE(usb, sn9c102_id_table);
-
-MODULE_AUTHOR(SN9C102_MODULE_AUTHOR " " SN9C102_AUTHOR_EMAIL);
-MODULE_DESCRIPTION(SN9C102_MODULE_NAME);
-MODULE_VERSION(SN9C102_MODULE_VERSION);
-MODULE_LICENSE(SN9C102_MODULE_LICENSE);
-
-static short video_nr[] = {[0 ... SN9C102_MAX_DEVICES-1] = -1};
-static unsigned int nv;
-module_param_array(video_nr, short, nv, 0444);
-MODULE_PARM_DESC(video_nr,
- "\n<-1|n[,...]> Specify V4L2 minor mode number."
- "\n -1 = use next available (default)"
- "\n n = use minor number n (integer >= 0)"
- "\nYou can specify up to "__MODULE_STRING(SN9C102_MAX_DEVICES)
- " cameras this way."
- "\nFor example:"
- "\nvideo_nr=-1,2,-1 would assign minor number 2 to"
- "\nthe second camera and use auto for the first"
- "\none and for every other camera."
- "\n");
-
-#ifdef SN9C102_DEBUG
-static unsigned short debug = SN9C102_DEBUG_LEVEL;
-module_param(debug, ushort, 0644);
-MODULE_PARM_DESC(debug,
- "\n<n> Debugging information level, from 0 to 3:"
- "\n0 = none (use carefully)"
- "\n1 = critical errors"
- "\n2 = significant informations"
- "\n3 = more verbose messages"
- "\nLevel 3 is useful for testing only, when only "
- "one device is used."
- "\nDefault value is "__MODULE_STRING(SN9C102_DEBUG_LEVEL)"."
- "\n");
-#endif
-
-/*****************************************************************************/
-
-typedef char sn9c102_sof_header_t[7];
-typedef char sn9c102_eof_header_t[4];
-
-static sn9c102_sof_header_t sn9c102_sof_header[] = {
- {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96, 0x00},
- {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96, 0x01},
-};
-
-/* Number of random bytes that complete the SOF above headers */
-#define SN9C102_SOFLEN 5
-
-static sn9c102_eof_header_t sn9c102_eof_header[] = {
- {0x00, 0x00, 0x00, 0x00},
- {0x40, 0x00, 0x00, 0x00},
- {0x80, 0x00, 0x00, 0x00},
- {0xc0, 0x00, 0x00, 0x00},
-};
-
-/*****************************************************************************/
-
-static inline unsigned long kvirt_to_pa(unsigned long adr)
-{
- unsigned long kva, ret;
-
- kva = (unsigned long)page_address(vmalloc_to_page((void *)adr));
- kva |= adr & (PAGE_SIZE-1);
- ret = __pa(kva);
- return ret;
-}
-
-
-static void* rvmalloc(size_t size)
-{
- void* mem;
- unsigned long adr;
-
- size = PAGE_ALIGN(size);
-
- mem = vmalloc_32((unsigned long)size);
- if (!mem)
- return NULL;
-
- memset(mem, 0, size);
-
- adr = (unsigned long)mem;
- while (size > 0) {
- SetPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
-
- return mem;
-}
-
-
-static void rvfree(void* mem, size_t size)
-{
- unsigned long adr;
-
- if (!mem)
- return;
-
- size = PAGE_ALIGN(size);
-
- adr = (unsigned long)mem;
- while (size > 0) {
- ClearPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
-
- vfree(mem);
-}
-
-
-static u32 sn9c102_request_buffers(struct sn9c102_device* cam, u32 count)
-{
- struct v4l2_pix_format* p = &(cam->sensor->pix_format);
- const size_t imagesize = (p->width * p->height * p->priv)/8;
- void* buff = NULL;
- u32 i;
-
- if (count > SN9C102_MAX_FRAMES)
- count = SN9C102_MAX_FRAMES;
-
- cam->nbuffers = count;
- while (cam->nbuffers > 0) {
- if ((buff = rvmalloc(cam->nbuffers * imagesize)))
- break;
- cam->nbuffers--;
- }
-
- for (i = 0; i < cam->nbuffers; i++) {
- cam->frame[i].bufmem = buff + i*imagesize;
- cam->frame[i].buf.index = i;
- cam->frame[i].buf.m.offset = i*imagesize;
- cam->frame[i].buf.length = imagesize;
- cam->frame[i].buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- cam->frame[i].buf.sequence = 0;
- cam->frame[i].buf.field = V4L2_FIELD_NONE;
- cam->frame[i].buf.memory = V4L2_MEMORY_MMAP;
- cam->frame[i].buf.flags = 0;
- }
-
- return cam->nbuffers;
-}
-
-
-static void sn9c102_release_buffers(struct sn9c102_device* cam)
-{
- if (cam->nbuffers) {
- rvfree(cam->frame[0].bufmem,
- cam->nbuffers * cam->frame[0].buf.length);
- cam->nbuffers = 0;
- }
-}
-
-
-static void sn9c102_empty_framequeues(struct sn9c102_device* cam)
-{
- u32 i;
-
- INIT_LIST_HEAD(&cam->inqueue);
- INIT_LIST_HEAD(&cam->outqueue);
-
- for (i = 0; i < SN9C102_MAX_FRAMES; i++) {
- cam->frame[i].state = F_UNUSED;
- cam->frame[i].buf.bytesused = 0;
- }
-}
-
-
-static void sn9c102_queue_unusedframes(struct sn9c102_device* cam)
-{
- unsigned long lock_flags;
- u32 i;
-
- for (i = 0; i < cam->nbuffers; i++)
- if (cam->frame[i].state == F_UNUSED) {
- cam->frame[i].state = F_QUEUED;
- spin_lock_irqsave(&cam->queue_lock, lock_flags);
- list_add_tail(&cam->frame[i].frame, &cam->inqueue);
- spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
- }
-}
-
-/*****************************************************************************/
-
-int sn9c102_write_reg(struct sn9c102_device* cam, u8 value, u16 index)
-{
- struct usb_device* udev = cam->usbdev;
- u8* buff = cam->control_buffer;
- int res;
-
- if (index == 0x18)
- value = (value & 0xcf) | (cam->reg[0x18] & 0x30);
-
- *buff = value;
-
- res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
- index, 0, buff, 1, SN9C102_CTRL_TIMEOUT);
- if (res < 0) {
- DBG(3, "Failed to write a register (value 0x%02X, index "
- "0x%02X, error %d)", value, index, res)
- return -1;
- }
-
- cam->reg[index] = value;
-
- return 0;
-}
-
-
-/* NOTE: reading some registers always returns 0 */
-static int sn9c102_read_reg(struct sn9c102_device* cam, u16 index)
-{
- struct usb_device* udev = cam->usbdev;
- u8* buff = cam->control_buffer;
- int res;
-
- res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00, 0xc1,
- index, 0, buff, 1, SN9C102_CTRL_TIMEOUT);
- if (res < 0)
- DBG(3, "Failed to read a register (index 0x%02X, error %d)",
- index, res)
-
- return (res >= 0) ? (int)(*buff) : -1;
-}
-
-
-int sn9c102_pread_reg(struct sn9c102_device* cam, u16 index)
-{
- if (index > 0x1f)
- return -EINVAL;
-
- return cam->reg[index];
-}
-
-
-static int
-sn9c102_i2c_wait(struct sn9c102_device* cam, struct sn9c102_sensor* sensor)
-{
- int i, r;
-
- for (i = 1; i <= 5; i++) {
- r = sn9c102_read_reg(cam, 0x08);
- if (r < 0)
- return -EIO;
- if (r & 0x04)
- return 0;
- if (sensor->frequency & SN9C102_I2C_400KHZ)
- udelay(5*8);
- else
- udelay(16*8);
- }
- return -EBUSY;
-}
-
-
-static int
-sn9c102_i2c_detect_read_error(struct sn9c102_device* cam,
- struct sn9c102_sensor* sensor)
-{
- int r;
- r = sn9c102_read_reg(cam, 0x08);
- return (r < 0 || (r >= 0 && !(r & 0x08))) ? -EIO : 0;
-}
-
-
-static int
-sn9c102_i2c_detect_write_error(struct sn9c102_device* cam,
- struct sn9c102_sensor* sensor)
-{
- int r;
- r = sn9c102_read_reg(cam, 0x08);
- return (r < 0 || (r >= 0 && (r & 0x08))) ? -EIO : 0;
-}
-
-
-int
-sn9c102_i2c_try_read(struct sn9c102_device* cam,
- struct sn9c102_sensor* sensor, u8 address)
-{
- struct usb_device* udev = cam->usbdev;
- u8* data = cam->control_buffer;
- int err = 0, res;
-
- /* Write cycle - address */
- data[0] = ((sensor->interface == SN9C102_I2C_2WIRES) ? 0x80 : 0) |
- ((sensor->frequency & SN9C102_I2C_400KHZ) ? 0x01 : 0) | 0x10;
- data[1] = sensor->slave_write_id;
- data[2] = address;
- data[7] = 0x10;
- res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
- 0x08, 0, data, 8, SN9C102_CTRL_TIMEOUT);
- if (res < 0)
- err += res;
-
- err += sn9c102_i2c_wait(cam, sensor);
-
- /* Read cycle - 1 byte */
- data[0] = ((sensor->interface == SN9C102_I2C_2WIRES) ? 0x80 : 0) |
- ((sensor->frequency & SN9C102_I2C_400KHZ) ? 0x01 : 0) |
- 0x10 | 0x02;
- data[1] = sensor->slave_read_id;
- data[7] = 0x10;
- res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
- 0x08, 0, data, 8, SN9C102_CTRL_TIMEOUT);
- if (res < 0)
- err += res;
-
- err += sn9c102_i2c_wait(cam, sensor);
-
- /* The read byte will be placed in data[4] */
- res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00, 0xc1,
- 0x0a, 0, data, 5, SN9C102_CTRL_TIMEOUT);
- if (res < 0)
- err += res;
-
- err += sn9c102_i2c_detect_read_error(cam, sensor);
-
- if (err)
- DBG(3, "I2C read failed for %s image sensor", sensor->name)
-
- PDBGG("I2C read: address 0x%02X, value: 0x%02X", address, data[4])
-
- return err ? -1 : (int)data[4];
-}
-
-
-int
-sn9c102_i2c_try_raw_write(struct sn9c102_device* cam,
- struct sn9c102_sensor* sensor, u8 n, u8 data0,
- u8 data1, u8 data2, u8 data3, u8 data4, u8 data5)
-{
- struct usb_device* udev = cam->usbdev;
- u8* data = cam->control_buffer;
- int err = 0, res;
-
- /* Write cycle. It usually is address + value */
- data[0] = ((sensor->interface == SN9C102_I2C_2WIRES) ? 0x80 : 0) |
- ((sensor->frequency & SN9C102_I2C_400KHZ) ? 0x01 : 0)
- | ((n - 1) << 4);
- data[1] = data0;
- data[2] = data1;
- data[3] = data2;
- data[4] = data3;
- data[5] = data4;
- data[6] = data5;
- data[7] = 0x10;
- res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x08, 0x41,
- 0x08, 0, data, 8, SN9C102_CTRL_TIMEOUT);
- if (res < 0)
- err += res;
-
- err += sn9c102_i2c_wait(cam, sensor);
- err += sn9c102_i2c_detect_write_error(cam, sensor);
-
- if (err)
- DBG(3, "I2C write failed for %s image sensor", sensor->name)
-
- PDBGG("I2C write: %u bytes, data0 = 0x%02X, data1 = 0x%02X, "
- "data2 = 0x%02X, data3 = 0x%02X, data4 = 0x%02X, data5 = 0x%02X",
- n, data0, data1, data2, data3, data4, data5)
-
- return err ? -1 : 0;
-}
-
-
-int
-sn9c102_i2c_try_write(struct sn9c102_device* cam,
- struct sn9c102_sensor* sensor, u8 address, u8 value)
-{
- return sn9c102_i2c_try_raw_write(cam, sensor, 3,
- sensor->slave_write_id, address,
- value, 0, 0, 0);
-}
-
-
-int sn9c102_i2c_read(struct sn9c102_device* cam, u8 address)
-{
- if (!cam->sensor)
- return -1;
-
- return sn9c102_i2c_try_read(cam, cam->sensor, address);
-}
-
-
-int sn9c102_i2c_write(struct sn9c102_device* cam, u8 address, u8 value)
-{
- if (!cam->sensor)
- return -1;
-
- return sn9c102_i2c_try_write(cam, cam->sensor, address, value);
-}
-
-/*****************************************************************************/
-
-static void* sn9c102_find_sof_header(void* mem, size_t len)
-{
- size_t soflen=sizeof(sn9c102_sof_header_t), SOFLEN=SN9C102_SOFLEN, i;
- u8 j, n = sizeof(sn9c102_sof_header) / soflen;
-
- for (i = 0; (len >= soflen+SOFLEN) && (i <= len-soflen-SOFLEN); i++)
- for (j = 0; j < n; j++)
- if (!memcmp(mem + i, sn9c102_sof_header[j], soflen))
- /* Skips the header */
- return mem + i + soflen + SOFLEN;
-
- return NULL;
-}
-
-
-static void* sn9c102_find_eof_header(void* mem, size_t len)
-{
- size_t eoflen = sizeof(sn9c102_eof_header_t), i;
- unsigned j, n = sizeof(sn9c102_eof_header) / eoflen;
-
- for (i = 0; (len >= eoflen) && (i <= len - eoflen); i++)
- for (j = 0; j < n; j++)
- if (!memcmp(mem + i, sn9c102_eof_header[j], eoflen))
- return mem + i;
-
- return NULL;
-}
-
-
-static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs)
-{
- struct sn9c102_device* cam = urb->context;
- struct sn9c102_frame_t** f;
- unsigned long lock_flags;
- u8 i;
- int err = 0;
-
- if (urb->status == -ENOENT)
- return;
-
- f = &cam->frame_current;
-
- if (cam->stream == STREAM_INTERRUPT) {
- cam->stream = STREAM_OFF;
- if ((*f))
- (*f)->state = F_QUEUED;
- DBG(3, "Stream interrupted")
- wake_up_interruptible(&cam->wait_stream);
- }
-
- if ((cam->state & DEV_DISCONNECTED)||(cam->state & DEV_MISCONFIGURED))
- return;
-
- if (cam->stream == STREAM_OFF || list_empty(&cam->inqueue))
- goto resubmit_urb;
-
- if (!(*f))
- (*f) = list_entry(cam->inqueue.next, struct sn9c102_frame_t,
- frame);
-
- for (i = 0; i < urb->number_of_packets; i++) {
- unsigned int img, len, status;
- void *pos, *sof, *eof;
-
- len = urb->iso_frame_desc[i].actual_length;
- status = urb->iso_frame_desc[i].status;
- pos = urb->iso_frame_desc[i].offset + urb->transfer_buffer;
-
- if (status) {
- DBG(3, "Error in isochronous frame")
- (*f)->state = F_ERROR;
- continue;
- }
-
- PDBGG("Isochrnous frame: length %u, #%u i", len, i)
-
- /* NOTE: It is probably correct to assume that SOF and EOF
- headers do not occur between two consecutive packets,
- but who knows..Whatever is the truth, this assumption
- doesn't introduce bugs. */
-
-redo:
- sof = sn9c102_find_sof_header(pos, len);
- if (!sof) {
- eof = sn9c102_find_eof_header(pos, len);
- if ((*f)->state == F_GRABBING) {
-end_of_frame:
- img = len;
-
- if (eof)
- img = (eof > pos) ? eof - pos - 1 : 0;
-
- if ((*f)->buf.bytesused+img>(*f)->buf.length) {
- u32 b = (*f)->buf.bytesused + img -
- (*f)->buf.length;
- img = (*f)->buf.length -
- (*f)->buf.bytesused;
- DBG(3, "Expected EOF not found: "
- "video frame cut")
- if (eof)
- DBG(3, "Exceeded limit: +%u "
- "bytes", (unsigned)(b))
- }
-
- memcpy((*f)->bufmem + (*f)->buf.bytesused, pos,
- img);
-
- if ((*f)->buf.bytesused == 0)
- do_gettimeofday(&(*f)->buf.timestamp);
-
- (*f)->buf.bytesused += img;
-
- if ((*f)->buf.bytesused == (*f)->buf.length) {
- u32 b = (*f)->buf.bytesused;
- (*f)->state = F_DONE;
- (*f)->buf.sequence= ++cam->frame_count;
- spin_lock_irqsave(&cam->queue_lock,
- lock_flags);
- list_move_tail(&(*f)->frame,
- &cam->outqueue);
- if (!list_empty(&cam->inqueue))
- (*f) = list_entry(
- cam->inqueue.next,
- struct sn9c102_frame_t,
- frame );
- else
- (*f) = NULL;
- spin_unlock_irqrestore(&cam->queue_lock
- , lock_flags);
- DBG(3, "Video frame captured: "
- "%lu bytes", (unsigned long)(b))
-
- if (!(*f))
- goto resubmit_urb;
-
- } else if (eof) {
- (*f)->state = F_ERROR;
- DBG(3, "Not expected EOF after %lu "
- "bytes of image data",
- (unsigned long)((*f)->buf.bytesused))
- }
-
- if (sof) /* (1) */
- goto start_of_frame;
-
- } else if (eof) {
- DBG(3, "EOF without SOF")
- continue;
-
- } else {
- PDBGG("Ignoring pointless isochronous frame")
- continue;
- }
-
- } else if ((*f)->state == F_QUEUED || (*f)->state == F_ERROR) {
-start_of_frame:
- (*f)->state = F_GRABBING;
- (*f)->buf.bytesused = 0;
- len -= (sof - pos);
- pos = sof;
- DBG(3, "SOF detected: new video frame")
- if (len)
- goto redo;
-
- } else if ((*f)->state == F_GRABBING) {
- eof = sn9c102_find_eof_header(pos, len);
- if (eof && eof < sof)
- goto end_of_frame; /* (1) */
- else {
- DBG(3, "SOF before expected EOF after %lu "
- "bytes of image data",
- (unsigned long)((*f)->buf.bytesused))
- goto start_of_frame;
- }
- }
- }
-
-resubmit_urb:
- urb->dev = cam->usbdev;
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err < 0 && err != -EPERM) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "usb_submit_urb() failed")
- }
-
- wake_up_interruptible(&cam->wait_frame);
-}
-
-
-static int sn9c102_start_transfer(struct sn9c102_device* cam)
-{
- struct usb_device *udev = cam->usbdev;
- struct urb* urb;
- const unsigned int wMaxPacketSize[] = {0, 128, 256, 384, 512,
- 680, 800, 900, 1023};
- const unsigned int psz = wMaxPacketSize[SN9C102_ALTERNATE_SETTING];
- s8 i, j;
- int err = 0;
-
- for (i = 0; i < SN9C102_URBS; i++) {
- cam->transfer_buffer[i] = kmalloc(SN9C102_ISO_PACKETS * psz,
- GFP_KERNEL);
- if (!cam->transfer_buffer[i]) {
- err = -ENOMEM;
- DBG(1, "Not enough memory")
- goto free_buffers;
- }
- }
-
- for (i = 0; i < SN9C102_URBS; i++) {
- urb = usb_alloc_urb(SN9C102_ISO_PACKETS, GFP_KERNEL);
- cam->urb[i] = urb;
- if (!urb) {
- err = -ENOMEM;
- DBG(1, "usb_alloc_urb() failed")
- goto free_urbs;
- }
- urb->dev = udev;
- urb->context = cam;
- urb->pipe = usb_rcvisocpipe(udev, 1);
- urb->transfer_flags = URB_ISO_ASAP;
- urb->number_of_packets = SN9C102_ISO_PACKETS;
- urb->complete = sn9c102_urb_complete;
- urb->transfer_buffer = cam->transfer_buffer[i];
- urb->transfer_buffer_length = psz * SN9C102_ISO_PACKETS;
- urb->interval = 1;
- for (j = 0; j < SN9C102_ISO_PACKETS; j++) {
- urb->iso_frame_desc[j].offset = psz * j;
- urb->iso_frame_desc[j].length = psz;
- }
- }
-
- /* Enable video */
- if (!(cam->reg[0x01] & 0x04)) {
- err = sn9c102_write_reg(cam, cam->reg[0x01] | 0x04, 0x01);
- if (err) {
- err = -EIO;
- DBG(1, "I/O hardware error")
- goto free_urbs;
- }
- }
-
- err = usb_set_interface(udev, 0, SN9C102_ALTERNATE_SETTING);
- if (err) {
- DBG(1, "usb_set_interface() failed")
- goto free_urbs;
- }
-
- cam->frame_current = NULL;
-
- for (i = 0; i < SN9C102_URBS; i++) {
- err = usb_submit_urb(cam->urb[i], GFP_KERNEL);
- if (err) {
- for (j = i-1; j >= 0; j--)
- usb_kill_urb(cam->urb[j]);
- DBG(1, "usb_submit_urb() failed, error %d", err)
- goto free_urbs;
- }
- }
-
- return 0;
-
-free_urbs:
- for (i = 0; (i < SN9C102_URBS) && cam->urb[i]; i++)
- usb_free_urb(cam->urb[i]);
-
-free_buffers:
- for (i = 0; (i < SN9C102_URBS) && cam->transfer_buffer[i]; i++)
- kfree(cam->transfer_buffer[i]);
-
- return err;
-}
-
-
-static int sn9c102_stop_transfer(struct sn9c102_device* cam)
-{
- struct usb_device *udev = cam->usbdev;
- s8 i;
- int err = 0;
-
- if (cam->state & DEV_DISCONNECTED)
- return 0;
-
- for (i = SN9C102_URBS-1; i >= 0; i--) {
- usb_kill_urb(cam->urb[i]);
- usb_free_urb(cam->urb[i]);
- kfree(cam->transfer_buffer[i]);
- }
-
- err = usb_set_interface(udev, 0, 0); /* 0 Mb/s */
- if (err)
- DBG(3, "usb_set_interface() failed")
-
- return err;
-}
-
-/*****************************************************************************/
-
-static u8 sn9c102_strtou8(const char* buff, size_t len, ssize_t* count)
-{
- char str[5];
- char* endp;
- unsigned long val;
-
- if (len < 4) {
- strncpy(str, buff, len);
- str[len+1] = '\0';
- } else {
- strncpy(str, buff, 4);
- str[4] = '\0';
- }
-
- val = simple_strtoul(str, &endp, 0);
-
- *count = 0;
- if (val <= 0xff)
- *count = (ssize_t)(endp - str);
- if ((*count) && (len == *count+1) && (buff[*count] == '\n'))
- *count += 1;
-
- return (u8)val;
-}
-
-/* NOTE 1: being inside one of the following methods implies that the v4l
- device exists for sure (see kobjects and reference counters)
- NOTE 2: buffers are PAGE_SIZE long */
-
-static ssize_t sn9c102_show_reg(struct class_device* cd, char* buf)
-{
- struct sn9c102_device* cam;
- ssize_t count;
-
- if (down_interruptible(&sn9c102_sysfs_lock))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(to_video_device(cd));
- if (!cam) {
- up(&sn9c102_sysfs_lock);
- return -ENODEV;
- }
-
- count = sprintf(buf, "%u\n", cam->sysfs.reg);
-
- up(&sn9c102_sysfs_lock);
-
- return count;
-}
-
-
-static ssize_t
-sn9c102_store_reg(struct class_device* cd, const char* buf, size_t len)
-{
- struct sn9c102_device* cam;
- u8 index;
- ssize_t count;
-
- if (down_interruptible(&sn9c102_sysfs_lock))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(to_video_device(cd));
- if (!cam) {
- up(&sn9c102_sysfs_lock);
- return -ENODEV;
- }
-
- index = sn9c102_strtou8(buf, len, &count);
- if (index > 0x1f || !count) {
- up(&sn9c102_sysfs_lock);
- return -EINVAL;
- }
-
- cam->sysfs.reg = index;
-
- DBG(2, "Moved SN9C10X register index to 0x%02X", cam->sysfs.reg)
- DBG(3, "Written bytes: %zd", count)
-
- up(&sn9c102_sysfs_lock);
-
- return count;
-}
-
-
-static ssize_t sn9c102_show_val(struct class_device* cd, char* buf)
-{
- struct sn9c102_device* cam;
- ssize_t count;
- int val;
-
- if (down_interruptible(&sn9c102_sysfs_lock))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(to_video_device(cd));
- if (!cam) {
- up(&sn9c102_sysfs_lock);
- return -ENODEV;
- }
-
- if ((val = sn9c102_read_reg(cam, cam->sysfs.reg)) < 0) {
- up(&sn9c102_sysfs_lock);
- return -EIO;
- }
-
- count = sprintf(buf, "%d\n", val);
-
- DBG(3, "Read bytes: %zd", count)
-
- up(&sn9c102_sysfs_lock);
-
- return count;
-}
-
-
-static ssize_t
-sn9c102_store_val(struct class_device* cd, const char* buf, size_t len)
-{
- struct sn9c102_device* cam;
- u8 value;
- ssize_t count;
- int err;
-
- if (down_interruptible(&sn9c102_sysfs_lock))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(to_video_device(cd));
- if (!cam) {
- up(&sn9c102_sysfs_lock);
- return -ENODEV;
- }
-
- value = sn9c102_strtou8(buf, len, &count);
- if (!count) {
- up(&sn9c102_sysfs_lock);
- return -EINVAL;
- }
-
- err = sn9c102_write_reg(cam, value, cam->sysfs.reg);
- if (err) {
- up(&sn9c102_sysfs_lock);
- return -EIO;
- }
-
- DBG(2, "Written SN9C10X reg. 0x%02X, val. 0x%02X",
- cam->sysfs.reg, value)
- DBG(3, "Written bytes: %zd", count)
-
- up(&sn9c102_sysfs_lock);
-
- return count;
-}
-
-
-static ssize_t sn9c102_show_i2c_reg(struct class_device* cd, char* buf)
-{
- struct sn9c102_device* cam;
- ssize_t count;
-
- if (down_interruptible(&sn9c102_sysfs_lock))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(to_video_device(cd));
- if (!cam) {
- up(&sn9c102_sysfs_lock);
- return -ENODEV;
- }
-
- count = sprintf(buf, "%u\n", cam->sysfs.i2c_reg);
-
- DBG(3, "Read bytes: %zd", count)
-
- up(&sn9c102_sysfs_lock);
-
- return count;
-}
-
-
-static ssize_t
-sn9c102_store_i2c_reg(struct class_device* cd, const char* buf, size_t len)
-{
- struct sn9c102_device* cam;
- u8 index;
- ssize_t count;
-
- if (down_interruptible(&sn9c102_sysfs_lock))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(to_video_device(cd));
- if (!cam) {
- up(&sn9c102_sysfs_lock);
- return -ENODEV;
- }
-
- index = sn9c102_strtou8(buf, len, &count);
- if (!count) {
- up(&sn9c102_sysfs_lock);
- return -EINVAL;
- }
-
- cam->sysfs.i2c_reg = index;
-
- DBG(2, "Moved sensor register index to 0x%02X", cam->sysfs.i2c_reg)
- DBG(3, "Written bytes: %zd", count)
-
- up(&sn9c102_sysfs_lock);
-
- return count;
-}
-
-
-static ssize_t sn9c102_show_i2c_val(struct class_device* cd, char* buf)
-{
- struct sn9c102_device* cam;
- ssize_t count;
- int val;
-
- if (down_interruptible(&sn9c102_sysfs_lock))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(to_video_device(cd));
- if (!cam) {
- up(&sn9c102_sysfs_lock);
- return -ENODEV;
- }
-
- if ((val = sn9c102_i2c_read(cam, cam->sysfs.i2c_reg)) < 0) {
- up(&sn9c102_sysfs_lock);
- return -EIO;
- }
-
- count = sprintf(buf, "%d\n", val);
-
- DBG(3, "Read bytes: %zd", count)
-
- up(&sn9c102_sysfs_lock);
-
- return count;
-}
-
-
-static ssize_t
-sn9c102_store_i2c_val(struct class_device* cd, const char* buf, size_t len)
-{
- struct sn9c102_device* cam;
- u8 value;
- ssize_t count;
- int err;
-
- if (down_interruptible(&sn9c102_sysfs_lock))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(to_video_device(cd));
- if (!cam) {
- up(&sn9c102_sysfs_lock);
- return -ENODEV;
- }
-
- value = sn9c102_strtou8(buf, len, &count);
- if (!count) {
- up(&sn9c102_sysfs_lock);
- return -EINVAL;
- }
-
- err = sn9c102_i2c_write(cam, cam->sysfs.i2c_reg, value);
- if (err) {
- up(&sn9c102_sysfs_lock);
- return -EIO;
- }
-
- DBG(2, "Written sensor reg. 0x%02X, val. 0x%02X",
- cam->sysfs.i2c_reg, value)
- DBG(3, "Written bytes: %zd", count)
-
- up(&sn9c102_sysfs_lock);
-
- return count;
-}
-
-
-static ssize_t
-sn9c102_store_redblue(struct class_device* cd, const char* buf, size_t len)
-{
- ssize_t res = 0;
- u8 value;
- ssize_t count;
-
- value = sn9c102_strtou8(buf, len, &count);
- if (!count)
- return -EINVAL;
-
- if ((res = sn9c102_store_reg(cd, "0x10", 4)) >= 0)
- res = sn9c102_store_val(cd, buf, len);
-
- return res;
-}
-
-
-static ssize_t
-sn9c102_store_green(struct class_device* cd, const char* buf, size_t len)
-{
- ssize_t res = 0;
- u8 value;
- ssize_t count;
-
- value = sn9c102_strtou8(buf, len, &count);
- if (!count || value > 0x0f)
- return -EINVAL;
-
- if ((res = sn9c102_store_reg(cd, "0x11", 4)) >= 0)
- res = sn9c102_store_val(cd, buf, len);
-
- return res;
-}
-
-
-static CLASS_DEVICE_ATTR(reg, S_IRUGO | S_IWUSR,
- sn9c102_show_reg, sn9c102_store_reg);
-static CLASS_DEVICE_ATTR(val, S_IRUGO | S_IWUSR,
- sn9c102_show_val, sn9c102_store_val);
-static CLASS_DEVICE_ATTR(i2c_reg, S_IRUGO | S_IWUSR,
- sn9c102_show_i2c_reg, sn9c102_store_i2c_reg);
-static CLASS_DEVICE_ATTR(i2c_val, S_IRUGO | S_IWUSR,
- sn9c102_show_i2c_val, sn9c102_store_i2c_val);
-static CLASS_DEVICE_ATTR(redblue, S_IWUGO, NULL, sn9c102_store_redblue);
-static CLASS_DEVICE_ATTR(green, S_IWUGO, NULL, sn9c102_store_green);
-
-
-static void sn9c102_create_sysfs(struct sn9c102_device* cam)
-{
- struct video_device *v4ldev = cam->v4ldev;
-
- video_device_create_file(v4ldev, &class_device_attr_reg);
- video_device_create_file(v4ldev, &class_device_attr_val);
- video_device_create_file(v4ldev, &class_device_attr_redblue);
- video_device_create_file(v4ldev, &class_device_attr_green);
- if (cam->sensor->slave_write_id && cam->sensor->slave_read_id) {
- video_device_create_file(v4ldev, &class_device_attr_i2c_reg);
- video_device_create_file(v4ldev, &class_device_attr_i2c_val);
- }
-}
-
-/*****************************************************************************/
-
-static int sn9c102_set_scale(struct sn9c102_device* cam, u8 scale)
-{
- u8 r = 0;
- int err = 0;
-
- if (scale == 1)
- r = cam->reg[0x18] & 0xcf;
- else if (scale == 2) {
- r = cam->reg[0x18] & 0xcf;
- r |= 0x10;
- } else if (scale == 4)
- r = cam->reg[0x18] | 0x20;
-
- err += sn9c102_write_reg(cam, r, 0x18);
- if (err)
- return -EIO;
-
- PDBGG("Scaling factor: %u", scale)
-
- return 0;
-}
-
-
-static int sn9c102_set_crop(struct sn9c102_device* cam, struct v4l2_rect* rect)
-{
- struct sn9c102_sensor* s = cam->sensor;
- u8 h_start = (u8)(rect->left - s->cropcap.bounds.left),
- v_start = (u8)(rect->top - s->cropcap.bounds.top),
- h_size = (u8)(rect->width / 16),
- v_size = (u8)(rect->height / 16),
- ae_strx = 0x00,
- ae_stry = 0x00,
- ae_endx = h_size / 2,
- ae_endy = v_size / 2;
- int err = 0;
-
- /* These are a sort of stroboscopic signal for some sensors */
- err += sn9c102_write_reg(cam, h_size, 0x1a);
- err += sn9c102_write_reg(cam, v_size, 0x1b);
-
- err += sn9c102_write_reg(cam, h_start, 0x12);
- err += sn9c102_write_reg(cam, v_start, 0x13);
- err += sn9c102_write_reg(cam, h_size, 0x15);
- err += sn9c102_write_reg(cam, v_size, 0x16);
- err += sn9c102_write_reg(cam, ae_strx, 0x1c);
- err += sn9c102_write_reg(cam, ae_stry, 0x1d);
- err += sn9c102_write_reg(cam, ae_endx, 0x1e);
- err += sn9c102_write_reg(cam, ae_endy, 0x1f);
- if (err)
- return -EIO;
-
- PDBGG("h_start, v_start, h_size, v_size, ho_size, vo_size "
- "%u %u %u %u %u %u", h_start, v_start, h_size, v_size, ho_size,
- vo_size)
-
- return 0;
-}
-
-
-static int sn9c102_init(struct sn9c102_device* cam)
-{
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_control ctrl;
- struct v4l2_queryctrl *qctrl;
- struct v4l2_rect* rect;
- u8 i = 0, n = 0;
- int err = 0;
-
- if (!(cam->state & DEV_INITIALIZED)) {
- init_waitqueue_head(&cam->open);
- qctrl = s->qctrl;
- rect = &(s->cropcap.defrect);
- } else { /* use current values */
- qctrl = s->_qctrl;
- rect = &(s->_rect);
- }
-
- err += sn9c102_set_scale(cam, rect->width / s->pix_format.width);
- err += sn9c102_set_crop(cam, rect);
- if (err)
- return err;
-
- if (s->init) {
- err = s->init(cam);
- if (err) {
- DBG(3, "Sensor initialization failed")
- return err;
- }
- }
-
- if (s->set_crop)
- if ((err = s->set_crop(cam, rect))) {
- DBG(3, "set_crop() failed")
- return err;
- }
-
- if (s->set_ctrl) {
- n = sizeof(s->qctrl) / sizeof(s->qctrl[0]);
- for (i = 0; i < n; i++)
- if (s->qctrl[i].id != 0 &&
- !(s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED)) {
- ctrl.id = s->qctrl[i].id;
- ctrl.value = qctrl[i].default_value;
- err = s->set_ctrl(cam, &ctrl);
- if (err) {
- DBG(3, "Set control failed")
- return err;
- }
- }
- }
-
- if (!(cam->state & DEV_INITIALIZED)) {
- init_MUTEX(&cam->fileop_sem);
- spin_lock_init(&cam->queue_lock);
- init_waitqueue_head(&cam->wait_frame);
- init_waitqueue_head(&cam->wait_stream);
- memcpy(s->_qctrl, s->qctrl, sizeof(s->qctrl));
- memcpy(&(s->_rect), &(s->cropcap.defrect),
- sizeof(struct v4l2_rect));
- cam->state |= DEV_INITIALIZED;
- }
-
- DBG(2, "Initialization succeeded")
- return 0;
-}
-
-
-static void sn9c102_release_resources(struct sn9c102_device* cam)
-{
- down(&sn9c102_sysfs_lock);
-
- DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor)
- video_set_drvdata(cam->v4ldev, NULL);
- video_unregister_device(cam->v4ldev);
-
- up(&sn9c102_sysfs_lock);
-
- kfree(cam->control_buffer);
-}
-
-/*****************************************************************************/
-
-static int sn9c102_open(struct inode* inode, struct file* filp)
-{
- struct sn9c102_device* cam;
- int err = 0;
-
- /* This the only safe way to prevent race conditions with disconnect */
- if (!down_read_trylock(&sn9c102_disconnect))
- return -ERESTARTSYS;
-
- cam = video_get_drvdata(video_devdata(filp));
-
- if (down_interruptible(&cam->dev_sem)) {
- up_read(&sn9c102_disconnect);
- return -ERESTARTSYS;
- }
-
- if (cam->users) {
- DBG(2, "Device /dev/video%d is busy...", cam->v4ldev->minor)
- if ((filp->f_flags & O_NONBLOCK) ||
- (filp->f_flags & O_NDELAY)) {
- err = -EWOULDBLOCK;
- goto out;
- }
- up(&cam->dev_sem);
- err = wait_event_interruptible_exclusive(cam->open,
- cam->state & DEV_DISCONNECTED
- || !cam->users);
- if (err) {
- up_read(&sn9c102_disconnect);
- return err;
- }
- if (cam->state & DEV_DISCONNECTED) {
- up_read(&sn9c102_disconnect);
- return -ENODEV;
- }
- down(&cam->dev_sem);
- }
-
-
- if (cam->state & DEV_MISCONFIGURED) {
- err = sn9c102_init(cam);
- if (err) {
- DBG(1, "Initialization failed again. "
- "I will retry on next open().")
- goto out;
- }
- cam->state &= ~DEV_MISCONFIGURED;
- }
-
- if ((err = sn9c102_start_transfer(cam)))
- goto out;
-
- filp->private_data = cam;
- cam->users++;
- cam->io = IO_NONE;
- cam->stream = STREAM_OFF;
- cam->nbuffers = 0;
- cam->frame_count = 0;
- sn9c102_empty_framequeues(cam);
-
- DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor)
-
-out:
- up(&cam->dev_sem);
- up_read(&sn9c102_disconnect);
- return err;
-}
-
-
-static int sn9c102_release(struct inode* inode, struct file* filp)
-{
- struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
-
- down(&cam->dev_sem); /* prevent disconnect() to be called */
-
- sn9c102_stop_transfer(cam);
-
- sn9c102_release_buffers(cam);
-
- if (cam->state & DEV_DISCONNECTED) {
- sn9c102_release_resources(cam);
- up(&cam->dev_sem);
- kfree(cam);
- return 0;
- }
-
- cam->users--;
- wake_up_interruptible_nr(&cam->open, 1);
-
- DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor)
-
- up(&cam->dev_sem);
-
- return 0;
-}
-
-
-static ssize_t
-sn9c102_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos)
-{
- struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
- struct sn9c102_frame_t* f, * i;
- unsigned long lock_flags;
- int err = 0;
-
- if (down_interruptible(&cam->fileop_sem))
- return -ERESTARTSYS;
-
- if (cam->state & DEV_DISCONNECTED) {
- DBG(1, "Device not present")
- up(&cam->fileop_sem);
- return -ENODEV;
- }
-
- if (cam->state & DEV_MISCONFIGURED) {
- DBG(1, "The camera is misconfigured. Close and open it again.")
- up(&cam->fileop_sem);
- return -EIO;
- }
-
- if (cam->io == IO_MMAP) {
- DBG(3, "Close and open the device again to choose "
- "the read method")
- up(&cam->fileop_sem);
- return -EINVAL;
- }
-
- if (cam->io == IO_NONE) {
- if (!sn9c102_request_buffers(cam, 2)) {
- DBG(1, "read() failed, not enough memory")
- up(&cam->fileop_sem);
- return -ENOMEM;
- }
- cam->io = IO_READ;
- cam->stream = STREAM_ON;
- sn9c102_queue_unusedframes(cam);
- }
-
- if (!count) {
- up(&cam->fileop_sem);
- return 0;
- }
-
- if (list_empty(&cam->outqueue)) {
- if (filp->f_flags & O_NONBLOCK) {
- up(&cam->fileop_sem);
- return -EAGAIN;
- }
- err = wait_event_interruptible
- ( cam->wait_frame,
- (!list_empty(&cam->outqueue)) ||
- (cam->state & DEV_DISCONNECTED) );
- if (err) {
- up(&cam->fileop_sem);
- return err;
- }
- if (cam->state & DEV_DISCONNECTED) {
- up(&cam->fileop_sem);
- return -ENODEV;
- }
- }
-
- f = list_entry(cam->outqueue.prev, struct sn9c102_frame_t, frame);
-
- spin_lock_irqsave(&cam->queue_lock, lock_flags);
- list_for_each_entry(i, &cam->outqueue, frame)
- i->state = F_UNUSED;
- INIT_LIST_HEAD(&cam->outqueue);
- spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
-
- sn9c102_queue_unusedframes(cam);
-
- if (count > f->buf.length)
- count = f->buf.length;
-
- if (copy_to_user(buf, f->bufmem, count)) {
- up(&cam->fileop_sem);
- return -EFAULT;
- }
- *f_pos += count;
-
- PDBGG("Frame #%lu, bytes read: %zu", (unsigned long)f->buf.index,count)
-
- up(&cam->fileop_sem);
-
- return count;
-}
-
-
-static unsigned int sn9c102_poll(struct file *filp, poll_table *wait)
-{
- struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
- unsigned int mask = 0;
-
- if (down_interruptible(&cam->fileop_sem))
- return POLLERR;
-
- if (cam->state & DEV_DISCONNECTED) {
- DBG(1, "Device not present")
- goto error;
- }
-
- if (cam->state & DEV_MISCONFIGURED) {
- DBG(1, "The camera is misconfigured. Close and open it again.")
- goto error;
- }
-
- if (cam->io == IO_NONE) {
- if (!sn9c102_request_buffers(cam, 2)) {
- DBG(1, "poll() failed, not enough memory")
- goto error;
- }
- cam->io = IO_READ;
- cam->stream = STREAM_ON;
- }
-
- if (cam->io == IO_READ)
- sn9c102_queue_unusedframes(cam);
-
- poll_wait(filp, &cam->wait_frame, wait);
-
- if (!list_empty(&cam->outqueue))
- mask |= POLLIN | POLLRDNORM;
-
- up(&cam->fileop_sem);
-
- return mask;
-
-error:
- up(&cam->fileop_sem);
- return POLLERR;
-}
-
-
-static void sn9c102_vm_open(struct vm_area_struct* vma)
-{
- struct sn9c102_frame_t* f = vma->vm_private_data;
- f->vma_use_count++;
-}
-
-
-static void sn9c102_vm_close(struct vm_area_struct* vma)
-{
- /* NOTE: buffers are not freed here */
- struct sn9c102_frame_t* f = vma->vm_private_data;
- f->vma_use_count--;
-}
-
-
-static struct vm_operations_struct sn9c102_vm_ops = {
- .open = sn9c102_vm_open,
- .close = sn9c102_vm_close,
-};
-
-
-static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma)
-{
- struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
- unsigned long size = vma->vm_end - vma->vm_start,
- start = vma->vm_start,
- pos,
- page;
- u32 i;
-
- if (down_interruptible(&cam->fileop_sem))
- return -ERESTARTSYS;
-
- if (cam->state & DEV_DISCONNECTED) {
- DBG(1, "Device not present")
- up(&cam->fileop_sem);
- return -ENODEV;
- }
-
- if (cam->state & DEV_MISCONFIGURED) {
- DBG(1, "The camera is misconfigured. Close and open it again.")
- up(&cam->fileop_sem);
- return -EIO;
- }
-
- if (cam->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) ||
- size != PAGE_ALIGN(cam->frame[0].buf.length)) {
- up(&cam->fileop_sem);
- return -EINVAL;
- }
-
- for (i = 0; i < cam->nbuffers; i++) {
- if ((cam->frame[i].buf.m.offset>>PAGE_SHIFT) == vma->vm_pgoff)
- break;
- }
- if (i == cam->nbuffers) {
- up(&cam->fileop_sem);
- return -EINVAL;
- }
-
- pos = (unsigned long)cam->frame[i].bufmem;
- while (size > 0) { /* size is page-aligned */
- page = kvirt_to_pa(pos);
- if (remap_page_range(vma, start, page, PAGE_SIZE,
- vma->vm_page_prot)) {
- up(&cam->fileop_sem);
- return -EAGAIN;
- }
- start += PAGE_SIZE;
- pos += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
-
- vma->vm_ops = &sn9c102_vm_ops;
- vma->vm_flags &= ~VM_IO; /* not I/O memory */
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
- vma->vm_private_data = &cam->frame[i];
-
- sn9c102_vm_open(vma);
-
- up(&cam->fileop_sem);
-
- return 0;
-}
-
-
-static int sn9c102_v4l2_ioctl(struct inode* inode, struct file* filp,
- unsigned int cmd, void __user * arg)
-{
- struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
-
- switch (cmd) {
-
- case VIDIOC_QUERYCAP:
- {
- struct v4l2_capability cap = {
- .driver = "sn9c102",
- .version = SN9C102_MODULE_VERSION_CODE,
- .capabilities = V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_READWRITE |
- V4L2_CAP_STREAMING,
- };
-
- strlcpy(cap.card, cam->v4ldev->name, sizeof(cap.card));
- strlcpy(cap.bus_info, cam->dev.bus_id, sizeof(cap.bus_info));
-
- if (copy_to_user(arg, &cap, sizeof(cap)))
- return -EFAULT;
-
- return 0;
- }
-
- case VIDIOC_ENUMINPUT:
- {
- struct v4l2_input i;
-
- if (copy_from_user(&i, arg, sizeof(i)))
- return -EFAULT;
-
- if (i.index)
- return -EINVAL;
-
- memset(&i, 0, sizeof(i));
- strcpy(i.name, "USB");
-
- if (copy_to_user(arg, &i, sizeof(i)))
- return -EFAULT;
-
- return 0;
- }
-
- case VIDIOC_G_INPUT:
- case VIDIOC_S_INPUT:
- {
- int index;
-
- if (copy_from_user(&index, arg, sizeof(index)))
- return -EFAULT;
-
- if (index != 0)
- return -EINVAL;
-
- return 0;
- }
-
- case VIDIOC_QUERYCTRL:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_queryctrl qc;
- u8 i, n;
-
- if (copy_from_user(&qc, arg, sizeof(qc)))
- return -EFAULT;
-
- n = sizeof(s->qctrl) / sizeof(s->qctrl[0]);
- for (i = 0; i < n; i++)
- if (qc.id && qc.id == s->qctrl[i].id) {
- memcpy(&qc, &(s->qctrl[i]), sizeof(qc));
- if (copy_to_user(arg, &qc, sizeof(qc)))
- return -EFAULT;
- return 0;
- }
-
- return -EINVAL;
- }
-
- case VIDIOC_G_CTRL:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_control ctrl;
- int err = 0;
-
- if (!s->get_ctrl)
- return -EINVAL;
-
- if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
- return -EFAULT;
-
- err = s->get_ctrl(cam, &ctrl);
-
- if (copy_to_user(arg, &ctrl, sizeof(ctrl)))
- return -EFAULT;
-
- return err;
- }
-
- case VIDIOC_S_CTRL:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_control ctrl;
- u8 i, n;
- int err = 0;
-
- if (!s->set_ctrl)
- return -EINVAL;
-
- if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
- return -EFAULT;
-
- if ((err = s->set_ctrl(cam, &ctrl)))
- return err;
-
- n = sizeof(s->qctrl) / sizeof(s->qctrl[0]);
- for (i = 0; i < n; i++)
- if (ctrl.id == s->qctrl[i].id) {
- s->_qctrl[i].default_value = ctrl.value;
- break;
- }
-
- return 0;
- }
-
- case VIDIOC_CROPCAP:
- {
- struct v4l2_cropcap* cc = &(cam->sensor->cropcap);
-
- cc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- cc->pixelaspect.numerator = 1;
- cc->pixelaspect.denominator = 1;
-
- if (copy_to_user(arg, cc, sizeof(*cc)))
- return -EFAULT;
-
- return 0;
- }
-
- case VIDIOC_G_CROP:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_crop crop = {
- .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
- };
-
- memcpy(&(crop.c), &(s->_rect), sizeof(struct v4l2_rect));
-
- if (copy_to_user(arg, &crop, sizeof(crop)))
- return -EFAULT;
-
- return 0;
- }
-
- case VIDIOC_S_CROP:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_crop crop;
- struct v4l2_rect* rect;
- struct v4l2_rect* bounds = &(s->cropcap.bounds);
- struct v4l2_pix_format* pix_format = &(s->pix_format);
- u8 scale;
- const enum sn9c102_stream_state stream = cam->stream;
- const u32 nbuffers = cam->nbuffers;
- u32 i;
- int err = 0;
-
- if (copy_from_user(&crop, arg, sizeof(crop)))
- return -EFAULT;
-
- rect = &(crop.c);
-
- if (crop.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- for (i = 0; i < cam->nbuffers; i++)
- if (cam->frame[i].vma_use_count) {
- DBG(3, "VIDIOC_S_CROP failed. "
- "Unmap the buffers first.")
- return -EINVAL;
- }
-
- if (rect->width < 16)
- rect->width = 16;
- if (rect->height < 16)
- rect->height = 16;
- if (rect->width > bounds->width)
- rect->width = bounds->width;
- if (rect->height > bounds->height)
- rect->height = bounds->height;
- if (rect->left < bounds->left)
- rect->left = bounds->left;
- if (rect->top < bounds->top)
- rect->top = bounds->top;
- if (rect->left + rect->width > bounds->left + bounds->width)
- rect->left = bounds->left+bounds->width - rect->width;
- if (rect->top + rect->height > bounds->top + bounds->height)
- rect->top = bounds->top+bounds->height - rect->height;
-
- rect->width &= ~15L;
- rect->height &= ~15L;
-
- { /* calculate the scaling factor */
- u32 a, b;
- a = rect->width * rect->height;
- b = pix_format->width * pix_format->height;
- scale = b ? (u8)((a / b) <= 1 ? 1 : ((a / b) == 3 ? 2 :
- ((a / b) > 4 ? 4 : (a / b)))) : 1;
- }
-
- if (cam->stream == STREAM_ON) {
- cam->stream = STREAM_INTERRUPT;
- err = wait_event_interruptible
- ( cam->wait_stream,
- (cam->stream == STREAM_OFF) ||
- (cam->state & DEV_DISCONNECTED) );
- if (err) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "The camera is misconfigured. To use "
- "it, close and open /dev/video%d "
- "again.", cam->v4ldev->minor)
- return err;
- }
- if (cam->state & DEV_DISCONNECTED)
- return -ENODEV;
- }
-
- if (copy_to_user(arg, &crop, sizeof(crop))) {
- cam->stream = stream;
- return -EFAULT;
- }
-
- sn9c102_release_buffers(cam);
-
- err = sn9c102_set_crop(cam, rect);
- if (s->set_crop)
- err += s->set_crop(cam, rect);
- err += sn9c102_set_scale(cam, scale);
-
- if (err) { /* atomic, no rollback in ioctl() */
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_CROP failed because of hardware "
- "problems. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return err;
- }
-
- s->pix_format.width = rect->width/scale;
- s->pix_format.height = rect->height/scale;
- memcpy(&(s->_rect), rect, sizeof(*rect));
-
- if (nbuffers != sn9c102_request_buffers(cam, nbuffers)) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_CROP failed because of not enough "
- "memory. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return -ENOMEM;
- }
-
- cam->stream = stream;
-
- return 0;
- }
-
- case VIDIOC_ENUM_FMT:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_fmtdesc fmtd;
-
- if (copy_from_user(&fmtd, arg, sizeof(fmtd)))
- return -EFAULT;
-
- if (fmtd.index != 0)
- return -EINVAL;
-
- memset(&fmtd, 0, sizeof(fmtd));
-
- fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- strcpy(fmtd.description, "bayer rgb");
- fmtd.pixelformat = s->pix_format.pixelformat;
-
- if (copy_to_user(arg, &fmtd, sizeof(fmtd)))
- return -EFAULT;
-
- return 0;
- }
-
- case VIDIOC_G_FMT:
- {
- struct v4l2_format format;
- struct v4l2_pix_format* pfmt = &(cam->sensor->pix_format);
-
- if (copy_from_user(&format, arg, sizeof(format)))
- return -EFAULT;
-
- if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- pfmt->bytesperline = (pfmt->width * pfmt->priv) / 8;
- pfmt->sizeimage = pfmt->height * pfmt->bytesperline;
- pfmt->field = V4L2_FIELD_NONE;
- memcpy(&(format.fmt.pix), pfmt, sizeof(*pfmt));
-
- if (copy_to_user(arg, &format, sizeof(format)))
- return -EFAULT;
-
- return 0;
- }
-
- case VIDIOC_TRY_FMT:
- case VIDIOC_S_FMT:
- {
- struct sn9c102_sensor* s = cam->sensor;
- struct v4l2_format format;
- struct v4l2_pix_format* pix;
- struct v4l2_pix_format* pfmt = &(s->pix_format);
- struct v4l2_rect* bounds = &(s->cropcap.bounds);
- struct v4l2_rect rect;
- u8 scale;
- const enum sn9c102_stream_state stream = cam->stream;
- const u32 nbuffers = cam->nbuffers;
- u32 i;
- int err = 0;
-
- if (copy_from_user(&format, arg, sizeof(format)))
- return -EFAULT;
-
- pix = &(format.fmt.pix);
-
- if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- memcpy(&rect, &(s->_rect), sizeof(rect));
-
- { /* calculate the scaling factor */
- u32 a, b;
- a = rect.width * rect.height;
- b = pix->width * pix->height;
- scale = b ? (u8)((a / b) <= 1 ? 1 : ((a / b) == 3 ? 2 :
- ((a / b) > 4 ? 4 : (a / b)))) : 1;
- }
-
- rect.width = scale * pix->width;
- rect.height = scale * pix->height;
-
- if (rect.width < 16)
- rect.width = 16;
- if (rect.height < 16)
- rect.height = 16;
- if (rect.width > bounds->left + bounds->width - rect.left)
- rect.width = bounds->left+bounds->width - rect.left;
- if (rect.height > bounds->top + bounds->height - rect.top)
- rect.height = bounds->top + bounds->height - rect.top;
-
- rect.width &= ~15L;
- rect.height &= ~15L;
-
- pix->width = rect.width / scale;
- pix->height = rect.height / scale;
-
- pix->pixelformat = pfmt->pixelformat;
- pix->priv = pfmt->priv; /* bpp */
- pix->colorspace = pfmt->colorspace;
- pix->bytesperline = (pix->width * pix->priv) / 8;
- pix->sizeimage = pix->height * pix->bytesperline;
- pix->field = V4L2_FIELD_NONE;
-
- if (cmd == VIDIOC_TRY_FMT)
- return 0;
-
- for (i = 0; i < cam->nbuffers; i++)
- if (cam->frame[i].vma_use_count) {
- DBG(3, "VIDIOC_S_FMT failed. "
- "Unmap the buffers first.")
- return -EINVAL;
- }
-
- if (cam->stream == STREAM_ON) {
- cam->stream = STREAM_INTERRUPT;
- err = wait_event_interruptible
- ( cam->wait_stream,
- (cam->stream == STREAM_OFF) ||
- (cam->state & DEV_DISCONNECTED) );
- if (err) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "The camera is misconfigured. To use "
- "it, close and open /dev/video%d "
- "again.", cam->v4ldev->minor)
- return err;
- }
- if (cam->state & DEV_DISCONNECTED)
- return -ENODEV;
- }
-
- if (copy_to_user(arg, &format, sizeof(format))) {
- cam->stream = stream;
- return -EFAULT;
- }
-
- sn9c102_release_buffers(cam);
-
- err = sn9c102_set_crop(cam, &rect);
- if (s->set_crop)
- err += s->set_crop(cam, &rect);
- err += sn9c102_set_scale(cam, scale);
-
- if (err) { /* atomic, no rollback in ioctl() */
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_FMT failed because of hardware "
- "problems. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return err;
- }
-
- memcpy(pfmt, pix, sizeof(*pix));
- memcpy(&(s->_rect), &rect, sizeof(rect));
-
- if (nbuffers != sn9c102_request_buffers(cam, nbuffers)) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "VIDIOC_S_FMT failed because of not enough "
- "memory. To use the camera, close and open "
- "/dev/video%d again.", cam->v4ldev->minor)
- return -ENOMEM;
- }
-
- cam->stream = stream;
-
- return 0;
- }
-
- case VIDIOC_REQBUFS:
- {
- struct v4l2_requestbuffers rb;
- u32 i;
- int err;
-
- if (copy_from_user(&rb, arg, sizeof(rb)))
- return -EFAULT;
-
- if (rb.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- rb.memory != V4L2_MEMORY_MMAP)
- return -EINVAL;
-
- if (cam->io == IO_READ) {
- DBG(3, "Close and open the device again to choose "
- "the mmap I/O method")
- return -EINVAL;
- }
-
- for (i = 0; i < cam->nbuffers; i++)
- if (cam->frame[i].vma_use_count) {
- DBG(3, "VIDIOC_REQBUFS failed. "
- "Previous buffers are still mapped.")
- return -EINVAL;
- }
-
- if (cam->stream == STREAM_ON) {
- cam->stream = STREAM_INTERRUPT;
- err = wait_event_interruptible
- ( cam->wait_stream,
- (cam->stream == STREAM_OFF) ||
- (cam->state & DEV_DISCONNECTED) );
- if (err) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "The camera is misconfigured. To use "
- "it, close and open /dev/video%d "
- "again.", cam->v4ldev->minor)
- return err;
- }
- if (cam->state & DEV_DISCONNECTED)
- return -ENODEV;
- }
-
- sn9c102_empty_framequeues(cam);
-
- sn9c102_release_buffers(cam);
- if (rb.count)
- rb.count = sn9c102_request_buffers(cam, rb.count);
-
- if (copy_to_user(arg, &rb, sizeof(rb))) {
- sn9c102_release_buffers(cam);
- cam->io = IO_NONE;
- return -EFAULT;
- }
-
- cam->io = rb.count ? IO_MMAP : IO_NONE;
-
- return 0;
- }
-
- case VIDIOC_QUERYBUF:
- {
- struct v4l2_buffer b;
-
- if (copy_from_user(&b, arg, sizeof(b)))
- return -EFAULT;
-
- if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- b.index >= cam->nbuffers || cam->io != IO_MMAP)
- return -EINVAL;
-
- memcpy(&b, &cam->frame[b.index].buf, sizeof(b));
-
- if (cam->frame[b.index].vma_use_count)
- b.flags |= V4L2_BUF_FLAG_MAPPED;
-
- if (cam->frame[b.index].state == F_DONE)
- b.flags |= V4L2_BUF_FLAG_DONE;
- else if (cam->frame[b.index].state != F_UNUSED)
- b.flags |= V4L2_BUF_FLAG_QUEUED;
-
- if (copy_to_user(arg, &b, sizeof(b)))
- return -EFAULT;
-
- return 0;
- }
-
- case VIDIOC_QBUF:
- {
- struct v4l2_buffer b;
- unsigned long lock_flags;
-
- if (copy_from_user(&b, arg, sizeof(b)))
- return -EFAULT;
-
- if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- b.index >= cam->nbuffers || cam->io != IO_MMAP)
- return -EINVAL;
-
- if (cam->frame[b.index].state != F_UNUSED)
- return -EINVAL;
-
- cam->frame[b.index].state = F_QUEUED;
-
- spin_lock_irqsave(&cam->queue_lock, lock_flags);
- list_add_tail(&cam->frame[b.index].frame, &cam->inqueue);
- spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
-
- PDBGG("Frame #%lu queued", (unsigned long)b.index)
-
- return 0;
- }
-
- case VIDIOC_DQBUF:
- {
- struct v4l2_buffer b;
- struct sn9c102_frame_t *f;
- unsigned long lock_flags;
- int err = 0;
-
- if (copy_from_user(&b, arg, sizeof(b)))
- return -EFAULT;
-
- if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io!= IO_MMAP)
- return -EINVAL;
-
- if (list_empty(&cam->outqueue)) {
- if (cam->stream == STREAM_OFF)
- return -EINVAL;
- if (filp->f_flags & O_NONBLOCK)
- return -EAGAIN;
- err = wait_event_interruptible
- ( cam->wait_frame,
- (!list_empty(&cam->outqueue)) ||
- (cam->state & DEV_DISCONNECTED) );
- if (err)
- return err;
- if (cam->state & DEV_DISCONNECTED)
- return -ENODEV;
- }
-
- spin_lock_irqsave(&cam->queue_lock, lock_flags);
- f = list_entry(cam->outqueue.next, struct sn9c102_frame_t,
- frame);
- list_del(&cam->outqueue);
- spin_unlock_irqrestore(&cam->queue_lock, lock_flags);
-
- f->state = F_UNUSED;
-
- memcpy(&b, &f->buf, sizeof(b));
- if (f->vma_use_count)
- b.flags |= V4L2_BUF_FLAG_MAPPED;
-
- if (copy_to_user(arg, &b, sizeof(b)))
- return -EFAULT;
-
- PDBGG("Frame #%lu dequeued", (unsigned long)f->buf.index)
-
- return 0;
- }
-
- case VIDIOC_STREAMON:
- {
- int type;
-
- if (copy_from_user(&type, arg, sizeof(type)))
- return -EFAULT;
-
- if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
- return -EINVAL;
-
- if (list_empty(&cam->inqueue))
- return -EINVAL;
-
- cam->stream = STREAM_ON;
-
- DBG(3, "Stream on")
-
- return 0;
- }
-
- case VIDIOC_STREAMOFF:
- {
- int type, err;
-
- if (copy_from_user(&type, arg, sizeof(type)))
- return -EFAULT;
-
- if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP)
- return -EINVAL;
-
- if (cam->stream == STREAM_ON) {
- cam->stream = STREAM_INTERRUPT;
- err = wait_event_interruptible
- ( cam->wait_stream,
- (cam->stream == STREAM_OFF) ||
- (cam->state & DEV_DISCONNECTED) );
- if (err) {
- cam->state |= DEV_MISCONFIGURED;
- DBG(1, "The camera is misconfigured. To use "
- "it, close and open /dev/video%d "
- "again.", cam->v4ldev->minor)
- return err;
- }
- if (cam->state & DEV_DISCONNECTED)
- return -ENODEV;
- }
-
- sn9c102_empty_framequeues(cam);
-
- DBG(3, "Stream off")
-
- return 0;
- }
-
- case VIDIOC_G_STD:
- case VIDIOC_S_STD:
- case VIDIOC_QUERYSTD:
- case VIDIOC_ENUMSTD:
- case VIDIOC_QUERYMENU:
- case VIDIOC_G_PARM:
- case VIDIOC_S_PARM:
- return -EINVAL;
-
- default:
- return -EINVAL;
-
- }
-}
-
-
-static int sn9c102_ioctl(struct inode* inode, struct file* filp,
- unsigned int cmd, unsigned long arg)
-{
- struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp));
- int err = 0;
-
- if (down_interruptible(&cam->fileop_sem))
- return -ERESTARTSYS;
-
- if (cam->state & DEV_DISCONNECTED) {
- DBG(1, "Device not present")
- up(&cam->fileop_sem);
- return -ENODEV;
- }
-
- if (cam->state & DEV_MISCONFIGURED) {
- DBG(1, "The camera is misconfigured. Close and open it again.")
- up(&cam->fileop_sem);
- return -EIO;
- }
-
- err = sn9c102_v4l2_ioctl(inode, filp, cmd, (void __user *)arg);
-
- up(&cam->fileop_sem);
-
- return err;
-}
-
-
-static struct file_operations sn9c102_fops = {
- .owner = THIS_MODULE,
- .open = sn9c102_open,
- .release = sn9c102_release,
- .ioctl = sn9c102_ioctl,
- .read = sn9c102_read,
- .poll = sn9c102_poll,
- .mmap = sn9c102_mmap,
- .llseek = no_llseek,
-};
-
-/*****************************************************************************/
-
-/* It exists a single interface only. We do not need to validate anything. */
-static int
-sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
-{
- struct usb_device *udev = interface_to_usbdev(intf);
- struct sn9c102_device* cam;
- static unsigned int dev_nr = 0;
- unsigned int i, n;
- int err = 0, r;
-
- n = sizeof(sn9c102_id_table)/sizeof(sn9c102_id_table[0]);
- for (i = 0; i < n-1; i++)
- if (udev->descriptor.idVendor==sn9c102_id_table[i].idVendor &&
- udev->descriptor.idProduct==sn9c102_id_table[i].idProduct)
- break;
- if (i == n-1)
- return -ENODEV;
-
- if (!(cam = kmalloc(sizeof(struct sn9c102_device), GFP_KERNEL)))
- return -ENOMEM;
- memset(cam, 0, sizeof(*cam));
-
- cam->usbdev = udev;
-
- memcpy(&cam->dev, &udev->dev, sizeof(struct device));
-
- if (!(cam->control_buffer = kmalloc(8, GFP_KERNEL))) {
- DBG(1, "kmalloc() failed")
- err = -ENOMEM;
- goto fail;
- }
- memset(cam->control_buffer, 0, 8);
-
- if (!(cam->v4ldev = video_device_alloc())) {
- DBG(1, "video_device_alloc() failed")
- err = -ENOMEM;
- goto fail;
- }
-
- init_MUTEX(&cam->dev_sem);
-
- r = sn9c102_read_reg(cam, 0x00);
- if (r < 0 || r != 0x10) {
- DBG(1, "Sorry, this is not a SN9C10[12] based camera "
- "(vid/pid 0x%04X/0x%04X)",
- sn9c102_id_table[i].idVendor,sn9c102_id_table[i].idProduct)
- err = -ENODEV;
- goto fail;
- }
-
- DBG(2, "SN9C10[12] PC Camera Controller detected "
- "(vid/pid 0x%04X/0x%04X)",
- sn9c102_id_table[i].idVendor, sn9c102_id_table[i].idProduct)
-
- for (i = 0; sn9c102_sensor_table[i]; i++) {
- err = sn9c102_sensor_table[i](cam);
- if (!err)
- break;
- }
-
- if (!err && cam->sensor) {
- DBG(2, "%s image sensor detected", cam->sensor->name)
- DBG(3, "Support for %s maintained by %s",
- cam->sensor->name, cam->sensor->maintainer)
- } else {
- DBG(1, "No supported image sensor detected")
- err = -ENODEV;
- goto fail;
- }
-
- if (sn9c102_init(cam)) {
- DBG(1, "Initialization failed. I will retry on open().")
- cam->state |= DEV_MISCONFIGURED;
- }
-
- strcpy(cam->v4ldev->name, "SN9C10[12] PC Camera");
- cam->v4ldev->owner = THIS_MODULE;
- cam->v4ldev->type = VID_TYPE_CAPTURE | VID_TYPE_SCALES;
- cam->v4ldev->hardware = VID_HARDWARE_SN9C102;
- cam->v4ldev->fops = &sn9c102_fops;
- cam->v4ldev->minor = video_nr[dev_nr];
- cam->v4ldev->release = video_device_release;
- video_set_drvdata(cam->v4ldev, cam);
-
- down(&cam->dev_sem);
-
- err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER,
- video_nr[dev_nr]);
- if (err) {
- DBG(1, "V4L2 device registration failed")
- if (err == -ENFILE && video_nr[dev_nr] == -1)
- DBG(1, "Free /dev/videoX node not found")
- video_nr[dev_nr] = -1;
- dev_nr = (dev_nr < SN9C102_MAX_DEVICES-1) ? dev_nr+1 : 0;
- up(&cam->dev_sem);
- goto fail;
- }
-
- DBG(2, "V4L2 device registered as /dev/video%d", cam->v4ldev->minor)
-
- sn9c102_create_sysfs(cam);
-
- usb_set_intfdata(intf, cam);
-
- up(&cam->dev_sem);
-
- return 0;
-
-fail:
- if (cam) {
- kfree(cam->control_buffer);
- if (cam->v4ldev)
- video_device_release(cam->v4ldev);
- kfree(cam);
- }
- return err;
-}
-
-
-static void sn9c102_usb_disconnect(struct usb_interface* intf)
-{
- struct sn9c102_device* cam = usb_get_intfdata(intf);
-
- if (!cam)
- return;
-
- down_write(&sn9c102_disconnect);
-
- down(&cam->dev_sem);
-
- DBG(2, "Disconnecting %s...", cam->v4ldev->name)
-
- wake_up_interruptible_all(&cam->open);
-
- if (cam->users) {
- DBG(2, "Device /dev/video%d is open! Deregistration and "
- "memory deallocation are deferred on close.",
- cam->v4ldev->minor)
- cam->state |= DEV_MISCONFIGURED;
- sn9c102_stop_transfer(cam);
- cam->state |= DEV_DISCONNECTED;
- wake_up_interruptible(&cam->wait_frame);
- wake_up_interruptible(&cam->wait_stream);
- } else {
- cam->state |= DEV_DISCONNECTED;
- sn9c102_release_resources(cam);
- }
-
- up(&cam->dev_sem);
-
- if (!cam->users)
- kfree(cam);
-
- up_write(&sn9c102_disconnect);
-}
-
-
-static struct usb_driver sn9c102_usb_driver = {
- .owner = THIS_MODULE,
- .name = "sn9c102",
- .id_table = sn9c102_id_table,
- .probe = sn9c102_usb_probe,
- .disconnect = sn9c102_usb_disconnect,
-};
-
-/*****************************************************************************/
-
-static int __init sn9c102_module_init(void)
-{
- int err = 0;
-
- KDBG(2, SN9C102_MODULE_NAME " v" SN9C102_MODULE_VERSION)
- KDBG(3, SN9C102_MODULE_AUTHOR)
-
- if ((err = usb_register(&sn9c102_usb_driver)))
- KDBG(1, "usb_register() failed")
-
- return err;
-}
-
-
-static void __exit sn9c102_module_exit(void)
-{
- usb_deregister(&sn9c102_usb_driver);
-}
-
-
-module_init(sn9c102_module_init);
-module_exit(sn9c102_module_exit);
+++ /dev/null
-/***************************************************************************
- * Driver for PAS106B image sensor connected to the SN9C10[12] PC Camera *
- * Controllers *
- * *
- * Copyright (C) 2004 by Luca Risolia <luca.risolia@studio.unibo.it> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the Free Software *
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
- ***************************************************************************/
-
-#include <linux/delay.h>
-#include "sn9c102_sensor.h"
-
-
-static struct sn9c102_sensor pas106b;
-
-
-static int pas106b_init(struct sn9c102_device* cam)
-{
- int err = 0;
-
- err += sn9c102_write_reg(cam, 0x00, 0x10);
- err += sn9c102_write_reg(cam, 0x00, 0x11);
- err += sn9c102_write_reg(cam, 0x00, 0x14);
- err += sn9c102_write_reg(cam, 0x20, 0x17);
- err += sn9c102_write_reg(cam, 0x20, 0x19);
- err += sn9c102_write_reg(cam, 0x09, 0x18);
-
- err += sn9c102_i2c_write(cam, 0x02, 0x0c);
- err += sn9c102_i2c_write(cam, 0x03, 0x12);
- err += sn9c102_i2c_write(cam, 0x04, 0x05);
- err += sn9c102_i2c_write(cam, 0x05, 0x22);
- err += sn9c102_i2c_write(cam, 0x06, 0xac);
- err += sn9c102_i2c_write(cam, 0x07, 0x00);
- err += sn9c102_i2c_write(cam, 0x08, 0x01);
- err += sn9c102_i2c_write(cam, 0x0a, 0x00);
- err += sn9c102_i2c_write(cam, 0x0b, 0x00);
- err += sn9c102_i2c_write(cam, 0x0d, 0x00);
- err += sn9c102_i2c_write(cam, 0x10, 0x06);
- err += sn9c102_i2c_write(cam, 0x11, 0x06);
- err += sn9c102_i2c_write(cam, 0x12, 0x00);
- err += sn9c102_i2c_write(cam, 0x14, 0x02);
- err += sn9c102_i2c_write(cam, 0x13, 0x01);
-
- msleep(400);
-
- return err;
-}
-
-
-static int pas106b_get_ctrl(struct sn9c102_device* cam,
- struct v4l2_control* ctrl)
-{
- switch (ctrl->id) {
- case V4L2_CID_RED_BALANCE:
- return (ctrl->value = sn9c102_i2c_read(cam, 0x0c))<0 ? -EIO:0;
- case V4L2_CID_BLUE_BALANCE:
- return (ctrl->value = sn9c102_i2c_read(cam, 0x09))<0 ? -EIO:0;
- case V4L2_CID_BRIGHTNESS:
- return (ctrl->value = sn9c102_i2c_read(cam, 0x0e))<0 ? -EIO:0;
- default:
- return -EINVAL;
- }
-}
-
-
-static int pas106b_set_ctrl(struct sn9c102_device* cam,
- const struct v4l2_control* ctrl)
-{
- int err = 0;
-
- switch (ctrl->id) {
- case V4L2_CID_RED_BALANCE:
- err += sn9c102_i2c_write(cam, 0x0c, ctrl->value & 0x1f);
- break;
- case V4L2_CID_BLUE_BALANCE:
- err += sn9c102_i2c_write(cam, 0x09, ctrl->value & 0x1f);
- break;
- case V4L2_CID_BRIGHTNESS:
- err += sn9c102_i2c_write(cam, 0x0e, ctrl->value & 0x1f);
- break;
- default:
- return -EINVAL;
- }
- err += sn9c102_i2c_write(cam, 0x13, 0x01);
-
- return err;
-}
-
-
-static int pas106b_set_crop(struct sn9c102_device* cam,
- const struct v4l2_rect* rect)
-{
- struct sn9c102_sensor* s = &pas106b;
- int err = 0;
- u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 4,
- v_start = (u8)(rect->top - s->cropcap.bounds.top) + 3;
-
- err += sn9c102_write_reg(cam, h_start, 0x12);
- err += sn9c102_write_reg(cam, v_start, 0x13);
-
- return err;
-}
-
-
-static struct sn9c102_sensor pas106b = {
- .name = "PAS106B",
- .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
- .frequency = SN9C102_I2C_400KHZ | SN9C102_I2C_100KHZ,
- .interface = SN9C102_I2C_2WIRES,
- .slave_read_id = 0x40,
- .slave_write_id = 0x40,
- .init = &pas106b_init,
- .qctrl = {
- {
- .id = V4L2_CID_RED_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "red balance",
- .minimum = 0x00,
- .maximum = 0x1f,
- .step = 0x01,
- .default_value = 0x03,
- .flags = 0,
- },
- {
- .id = V4L2_CID_BLUE_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "blue balance",
- .minimum = 0x00,
- .maximum = 0x1f,
- .step = 0x01,
- .default_value = 0x02,
- .flags = 0,
- },
- {
- .id = V4L2_CID_BRIGHTNESS,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "brightness",
- .minimum = 0x00,
- .maximum = 0x1f,
- .step = 0x01,
- .default_value = 0x06,
- .flags = 0,
- },
- },
- .get_ctrl = &pas106b_get_ctrl,
- .set_ctrl = &pas106b_set_ctrl,
- .cropcap = {
- .bounds = {
- .left = 0,
- .top = 0,
- .width = 352,
- .height = 288,
- },
- .defrect = {
- .left = 0,
- .top = 0,
- .width = 352,
- .height = 288,
- },
- },
- .set_crop = &pas106b_set_crop,
- .pix_format = {
- .width = 352,
- .height = 288,
- .pixelformat = V4L2_PIX_FMT_SBGGR8,
- .priv = 8, /* we use this field as 'bits per pixel' */
- }
-};
-
-
-int sn9c102_probe_pas106b(struct sn9c102_device* cam)
-{
- int r0 = 0, r1 = 0, err = 0;
- unsigned int pid = 0;
-
- /* Minimal initialization to enable the I2C communication
- NOTE: do NOT change the values! */
- err += sn9c102_write_reg(cam, 0x01, 0x01); /* sensor power down */
- err += sn9c102_write_reg(cam, 0x00, 0x01); /* sensor power on */
- err += sn9c102_write_reg(cam, 0x28, 0x17); /* sensor clock at 48 MHz */
- if (err)
- return -EIO;
-
- r0 = sn9c102_i2c_try_read(cam, &pas106b, 0x00);
- r1 = sn9c102_i2c_try_read(cam, &pas106b, 0x01);
-
- if (r0 < 0 || r1 < 0)
- return -EIO;
-
- pid = (r0 << 11) | ((r1 & 0xf0) >> 4);
- if (pid != 0x007)
- return -ENODEV;
-
- sn9c102_attach_sensor(cam, &pas106b);
-
- return 0;
-}
+++ /dev/null
-/***************************************************************************
- * API for image sensors connected to the SN9C10[12] PC Camera Controllers *
- * *
- * Copyright (C) 2004 by Luca Risolia <luca.risolia@studio.unibo.it> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the Free Software *
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
- ***************************************************************************/
-
-#ifndef _SN9C102_SENSOR_H_
-#define _SN9C102_SENSOR_H_
-
-#include <linux/usb.h>
-#include <linux/videodev.h>
-#include <linux/device.h>
-#include <linux/stddef.h>
-#include <linux/errno.h>
-#include <asm/types.h>
-
-struct sn9c102_device;
-struct sn9c102_sensor;
-
-/*****************************************************************************/
-
-/* OVERVIEW.
- This is a small interface that allows you to add support for any CCD/CMOS
- image sensors connected to the SN9C10X bridges. The entire API is documented
- below. In the most general case, to support a sensor there are three steps
- you have to follow:
- 1) define the main "sn9c102_sensor" structure by setting the basic fields;
- 2) write a probing function to be called by the core module when the USB
- camera is recognized, then add both the USB ids and the name of that
- function to the two corresponding tables SENSOR_TABLE and ID_TABLE (see
- below);
- 3) implement the methods that you want/need (and fill the rest of the main
- structure accordingly).
- "sn9c102_pas106b.c" is an example of all this stuff. Remember that you do
- NOT need to touch the source code of the core module for the things to work
- properly, unless you find bugs or flaws in it. Finally, do not forget to
- read the V4L2 API for completeness. */
-
-/*****************************************************************************/
-
-/* Probing functions: on success, you must attach the sensor to the camera
- by calling sn9c102_attach_sensor() provided below.
- To enable the I2C communication, you might need to perform a really basic
- initialization of the SN9C10X chip by using the write function declared
- ahead.
- Functions must return 0 on success, the appropriate error otherwise. */
-extern int sn9c102_probe_pas106b(struct sn9c102_device* cam);
-extern int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam);
-extern int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam);
-
-/* Add the above entries to this table. Be sure to add the entry in the right
- place, since, on failure, the next probing routine is called according to
- the order of the list below, from top to bottom */
-#define SN9C102_SENSOR_TABLE \
-static int (*sn9c102_sensor_table[])(struct sn9c102_device*) = { \
- &sn9c102_probe_pas106b, /* strong detection based on SENSOR vid/pid */\
- &sn9c102_probe_tas5110c1b, /* detection based on USB pid/vid */ \
- &sn9c102_probe_tas5130d1b, /* detection based on USB pid/vid */ \
- NULL, \
-};
-
-/* Attach a probed sensor to the camera. */
-extern void
-sn9c102_attach_sensor(struct sn9c102_device* cam,
- struct sn9c102_sensor* sensor);
-
-/* Each SN9C10X camera has proper PID/VID identifiers. Add them here in case.*/
-#define SN9C102_ID_TABLE \
-static const struct usb_device_id sn9c102_id_table[] = { \
- { USB_DEVICE(0xc45, 0x6001), }, \
- { USB_DEVICE(0xc45, 0x6005), }, /* TAS5110C1B */ \
- { USB_DEVICE(0xc45, 0x6009), }, /* PAS106B */ \
- { USB_DEVICE(0xc45, 0x600d), }, /* PAS106B */ \
- { USB_DEVICE(0xc45, 0x6024), }, \
- { USB_DEVICE(0xc45, 0x6025), }, /* TAS5130D1B Maybe also TAS5110C1B */\
- { USB_DEVICE(0xc45, 0x6028), }, /* Maybe PAS202B */ \
- { USB_DEVICE(0xc45, 0x6029), }, \
- { USB_DEVICE(0xc45, 0x602a), }, /* Maybe HV7131[D|E1] */ \
- { USB_DEVICE(0xc45, 0x602c), }, /* Maybe OV7620 */ \
- { USB_DEVICE(0xc45, 0x6030), }, /* Maybe MI03 */ \
- { USB_DEVICE(0xc45, 0x8001), }, \
- { } \
-};
-
-/*****************************************************************************/
-
-/* Read/write routines: they always return -1 on error, 0 or the read value
- otherwise. NOTE that a real read operation is not supported by the SN9C10X
- chip for some of its registers. To work around this problem, a pseudo-read
- call is provided instead: it returns the last successfully written value
- on the register (0 if it has never been written), the usual -1 on error. */
-
-/* The "try" I2C I/O versions are used when probing the sensor */
-extern int sn9c102_i2c_try_write(struct sn9c102_device*,struct sn9c102_sensor*,
- u8 address, u8 value);
-extern int sn9c102_i2c_try_read(struct sn9c102_device*,struct sn9c102_sensor*,
- u8 address);
-
-/* This must be used if and only if the sensor doesn't implement the standard
- I2C protocol, like the TASC sensors. There a number of good reasons why you
- must use the single-byte versions of this function: do not abuse. It writes
- n bytes, from data0 to datan, (registers 0x09 - 0x09+n of SN9C10X chip) */
-extern int sn9c102_i2c_try_raw_write(struct sn9c102_device* cam,
- struct sn9c102_sensor* sensor, u8 n,
- u8 data0, u8 data1, u8 data2, u8 data3,
- u8 data4, u8 data5);
-
-/* To be used after the sensor struct has been attached to the camera struct */
-extern int sn9c102_i2c_write(struct sn9c102_device*, u8 address, u8 value);
-extern int sn9c102_i2c_read(struct sn9c102_device*, u8 address);
-
-/* I/O on registers in the bridge. Could be used by the sensor methods too */
-extern int sn9c102_write_reg(struct sn9c102_device*, u8 value, u16 index);
-extern int sn9c102_pread_reg(struct sn9c102_device*, u16 index);
-
-/* NOTE: there are no debugging functions here. To uniform the output you must
- use the dev_info()/dev_warn()/dev_err() macros defined in device.h, already
- included here, the argument being the struct device 'dev' of the sensor
- structure. Do NOT use these macros before the sensor is attached or the
- kernel will crash! However you should not need to notify the user about
- common errors or other messages, since this is done by the master module. */
-
-/*****************************************************************************/
-
-enum sn9c102_i2c_frequency { /* sensors may support both the frequencies */
- SN9C102_I2C_100KHZ = 0x01,
- SN9C102_I2C_400KHZ = 0x02,
-};
-
-enum sn9c102_i2c_interface {
- SN9C102_I2C_2WIRES,
- SN9C102_I2C_3WIRES,
-};
-
-struct sn9c102_sensor {
- char name[32], /* sensor name */
- maintainer[64]; /* name of the mantainer <email> */
-
- /* These sensor capabilities must be provided if the SN9C10X controller
- needs to communicate through the sensor serial interface by using
- at least one of the i2c functions available */
- enum sn9c102_i2c_frequency frequency;
- enum sn9c102_i2c_interface interface;
-
- /* These identifiers must be provided if the image sensor implements
- the standard I2C protocol. TASC sensors don't, although they have a
- serial interface: so this is a case where the "raw" I2C version
- could be helpful. */
- u8 slave_read_id, slave_write_id; /* reg. 0x09 */
-
- /* NOTE: Where not noted,most of the functions below are not mandatory.
- Set to null if you do not implement them. If implemented,
- they must return 0 on success, the proper error otherwise. */
-
- int (*init)(struct sn9c102_device* cam);
- /* This function is called after the sensor has been attached.
- It should be used to initialize the sensor only, but may also
- configure part of the SN9C10X chip if necessary. You don't need to
- setup picture settings like brightness, contrast, etc.. here, if
- the corrisponding controls are implemented (see below), since
- they are adjusted in the core driver by calling the set_ctrl()
- method after init(), where the arguments are the default values
- specified in the v4l2_queryctrl list of supported controls;
- Same suggestions apply for other settings, _if_ the corresponding
- methods are present; if not, the initialization must configure the
- sensor according to the default configuration structures below. */
-
- struct v4l2_queryctrl qctrl[V4L2_CID_LASTP1-V4L2_CID_BASE];
- /* Optional list of default controls, defined as indicated in the
- V4L2 API. Menu type controls are not handled by this interface. */
-
- int (*get_ctrl)(struct sn9c102_device* cam, struct v4l2_control* ctrl);
- int (*set_ctrl)(struct sn9c102_device* cam,
- const struct v4l2_control* ctrl);
- /* You must implement at least the set_ctrl method if you have defined
- the list above. The returned value must follow the V4L2
- specifications for the VIDIOC_G|C_CTRL ioctls. V4L2_CID_H|VCENTER
- are not supported by this driver, so do not implement them. Also,
- passed values are NOT checked to see if they are out of bounds. */
-
- struct v4l2_cropcap cropcap;
- /* Think the image sensor as a grid of R,G,B monochromatic pixels
- disposed according to a particular Bayer pattern, which describes
- the complete array of pixels, from (0,0) to (xmax, ymax). We will
- use this coordinate system from now on. It is assumed the sensor
- chip can be programmed to capture/transmit a subsection of that
- array of pixels: we will call this subsection "active window".
- It is not always true that the largest achievable active window can
- cover the whole array of pixels. The V4L2 API defines another
- area called "source rectangle", which, in turn, is a subrectangle of
- the active window. The SN9C10X chip is always programmed to read the
- source rectangle.
- The bounds of both the active window and the source rectangle are
- specified in the cropcap substructures 'bounds' and 'defrect'.
- By default, the source rectangle should cover the largest possible
- area. Again, it is not always true that the largest source rectangle
- can cover the entire active window, although it is a rare case for
- the hardware we have. The bounds of the source rectangle _must_ be
- multiple of 16 and must use the same coordinate system as indicated
- before; their centers shall align initially.
- If necessary, the sensor chip must be initialized during init() to
- set the bounds of the active sensor window; however, by default, it
- usually covers the largest achievable area (maxwidth x maxheight)
- of pixels, so no particular initialization is needed, if you have
- defined the correct default bounds in the structures.
- See the V4L2 API for further details.
- NOTE: once you have defined the bounds of the active window
- (struct cropcap.bounds) you must not change them.anymore.
- Only 'bounds' and 'defrect' fields are mandatory, other fields
- will be ignored. */
-
- int (*set_crop)(struct sn9c102_device* cam,
- const struct v4l2_rect* rect);
- /* To be called on VIDIOC_C_SETCROP. The core module always calls a
- default routine which configures the appropriate SN9C10X regs (also
- scaling), but you may need to override/adjust specific stuff.
- 'rect' contains width and height values that are multiple of 16: in
- case you override the default function, you always have to program
- the chip to match those values; on error return the corresponding
- error code without rolling back.
- NOTE: in case, you must program the SN9C10X chip to get rid of
- blank pixels or blank lines at the _start_ of each line or
- frame after each HSYNC or VSYNC, so that the image starts with
- real RGB data (see regs 0x12,0x13) (having set H_SIZE and,
- V_SIZE you don't have to care about blank pixels or blank
- lines at the end of each line or frame). */
-
- struct v4l2_pix_format pix_format;
- /* What you have to define here are: initial 'width' and 'height' of
- the target rectangle, the bayer 'pixelformat' and 'priv' which we'll
- be used to indicate the number of bits per pixel, 8 or 9.
- Nothing more.
- NOTE 1: both 'width' and 'height' _must_ be either 1/1 or 1/2 or 1/4
- of cropcap.defrect.width and cropcap.defrect.height. I
- suggest 1/1.
- NOTE 2: as said above, you have to program the SN9C10X chip to get
- rid of any blank pixels, so that the output of the sensor
- matches the RGB bayer sequence (i.e. BGBGBG...GRGRGR). */
-
- const struct device* dev;
- /* This is the argument for dev_err(), dev_info() and dev_warn(). It
- is used for debugging purposes. You must not access the struct
- before the sensor is attached. */
-
- const struct usb_device* usbdev;
- /* Points to the usb_device struct after the sensor is attached.
- Do not touch unless you know what you are doing. */
-
- /* Do NOT write to the data below, it's READ ONLY. It is used by the
- core module to store successfully updated values of the above
- settings, for rollbacks..etc..in case of errors during atomic I/O */
- struct v4l2_queryctrl _qctrl[V4L2_CID_LASTP1-V4L2_CID_BASE];
- struct v4l2_rect _rect;
-};
-
-#endif /* _SN9C102_SENSOR_H_ */
+++ /dev/null
-/***************************************************************************
- * Driver for TAS5110C1B image sensor connected to the SN9C10[12] PC *
- * Camera Controllers *
- * *
- * Copyright (C) 2004 by Luca Risolia <luca.risolia@studio.unibo.it> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the Free Software *
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
- ***************************************************************************/
-
-#include "sn9c102_sensor.h"
-
-
-static struct sn9c102_sensor tas5110c1b;
-
-
-static int tas5110c1b_init(struct sn9c102_device* cam)
-{
- int err = 0;
-
- err += sn9c102_write_reg(cam, 0x01, 0x01);
- err += sn9c102_write_reg(cam, 0x44, 0x01);
- err += sn9c102_write_reg(cam, 0x00, 0x10);
- err += sn9c102_write_reg(cam, 0x00, 0x11);
- err += sn9c102_write_reg(cam, 0x00, 0x14);
- err += sn9c102_write_reg(cam, 0x60, 0x17);
- err += sn9c102_write_reg(cam, 0x06, 0x18);
- err += sn9c102_write_reg(cam, 0xcb, 0x19);
-
- return err;
-}
-
-
-static int tas5110c1b_set_crop(struct sn9c102_device* cam,
- const struct v4l2_rect* rect)
-{
- struct sn9c102_sensor* s = &tas5110c1b;
- int err = 0;
- u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
- v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
-
- err += sn9c102_write_reg(cam, h_start, 0x12);
- err += sn9c102_write_reg(cam, v_start, 0x13);
-
- return err;
-}
-
-
-static struct sn9c102_sensor tas5110c1b = {
- .name = "TAS5110C1B",
- .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
- .init = &tas5110c1b_init,
- .cropcap = {
- .bounds = {
- .left = 0,
- .top = 0,
- .width = 352,
- .height = 288,
- },
- .defrect = {
- .left = 0,
- .top = 0,
- .width = 352,
- .height = 288,
- },
- },
- .set_crop = &tas5110c1b_set_crop,
- .pix_format = {
- .width = 352,
- .height = 288,
- .pixelformat = V4L2_PIX_FMT_SBGGR8,
- .priv = 8,
- }
-};
-
-
-int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam)
-{
- /* This sensor has no identifiers, so let's attach it anyway */
- sn9c102_attach_sensor(cam, &tas5110c1b);
-
- /* At the moment, only devices whose PID is 0x6005 have this sensor */
- if (tas5110c1b.usbdev->descriptor.idProduct != 0x6005)
- return -ENODEV;
-
- return 0;
-}
+++ /dev/null
-/***************************************************************************
- * Driver for TAS5130D1B image sensor connected to the SN9C10[12] PC *
- * Camera Controllers *
- * *
- * Copyright (C) 2004 by Luca Risolia <luca.risolia@studio.unibo.it> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the Free Software *
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
- ***************************************************************************/
-
-#include "sn9c102_sensor.h"
-
-
-static struct sn9c102_sensor tas5130d1b;
-
-
-static int tas5130d1b_init(struct sn9c102_device* cam)
-{
- int err = 0;
-
- err += sn9c102_write_reg(cam, 0x01, 0x01);
- err += sn9c102_write_reg(cam, 0x20, 0x17);
- err += sn9c102_write_reg(cam, 0x04, 0x01);
- err += sn9c102_write_reg(cam, 0x01, 0x10);
- err += sn9c102_write_reg(cam, 0x00, 0x11);
- err += sn9c102_write_reg(cam, 0x00, 0x14);
- err += sn9c102_write_reg(cam, 0x60, 0x17);
- err += sn9c102_write_reg(cam, 0x07, 0x18);
- err += sn9c102_write_reg(cam, 0x33, 0x19);
-
- err += sn9c102_i2c_try_raw_write(cam, &tas5130d1b, 4, 0x11, 0x00, 0x40,
- 0x47, 0, 0);
- err += sn9c102_i2c_try_raw_write(cam, &tas5130d1b, 4, 0x11, 0x02, 0x20,
- 0xa9, 0, 0);
- err += sn9c102_i2c_try_raw_write(cam, &tas5130d1b, 4, 0x11, 0x00, 0xc0,
- 0x49, 0, 0);
- err += sn9c102_i2c_try_raw_write(cam, &tas5130d1b, 4, 0x11, 0x02, 0x20,
- 0x6c, 0, 0);
- err += sn9c102_i2c_try_raw_write(cam, &tas5130d1b, 4, 0x11, 0x00, 0xc0,
- 0x08, 0, 0);
- err += sn9c102_i2c_try_raw_write(cam, &tas5130d1b, 4, 0x11, 0x00, 0x20,
- 0x00, 0, 0);
-
- err += sn9c102_write_reg(cam, 0x63, 0x19);
-
- return err;
-}
-
-
-static int tas5130d1b_set_crop(struct sn9c102_device* cam,
- const struct v4l2_rect* rect)
-{
- struct sn9c102_sensor* s = &tas5130d1b;
- int err = 0;
- u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 104,
- v_start = (u8)(rect->top - s->cropcap.bounds.top) + 12;
-
- err += sn9c102_write_reg(cam, h_start, 0x12);
- err += sn9c102_write_reg(cam, v_start, 0x13);
-
- return err;
-}
-
-
-static struct sn9c102_sensor tas5130d1b = {
- .name = "TAS5130D1B",
- .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
- .frequency = SN9C102_I2C_100KHZ,
- .interface = SN9C102_I2C_3WIRES,
- .init = &tas5130d1b_init,
- .cropcap = {
- .bounds = {
- .left = 0,
- .top = 0,
- .width = 640,
- .height = 480,
- },
- .defrect = {
- .left = 0,
- .top = 0,
- .width = 640,
- .height = 480,
- },
- },
- .set_crop = &tas5130d1b_set_crop,
- .pix_format = {
- .width = 640,
- .height = 480,
- .pixelformat = V4L2_PIX_FMT_SBGGR8,
- .priv = 8,
- }
-};
-
-
-int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam)
-{
- /* This sensor has no identifiers, so let's attach it anyway */
- sn9c102_attach_sensor(cam, &tas5130d1b);
-
- /* At the moment, only devices whose PID is 0x6025 have this sensor */
- if (tas5130d1b.usbdev->descriptor.idProduct != 0x6025)
- return -ENODEV;
-
- dev_info(tas5130d1b.dev, "TAS5130D1B detected, but the support for it "
- "is disabled at the moment - needs further "
- "testing -\n");
-
- return -ENODEV;
-}
+++ /dev/null
-/***************************************************************************
- * Interface for video post-processing functions for the W996[87]CF driver *
- * for Linux. *
- * *
- * Copyright (C) 2002-2004 by Luca Risolia <luca.risolia@studio.unibo.it> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the Free Software *
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
- ***************************************************************************/
-
-#ifndef _W9968CF_VPP_H_
-#define _W9968CF_VPP_H_
-
-#include <linux/module.h>
-#include <asm/types.h>
-
-struct w9968cf_vpp_t {
- struct module* owner;
- int (*check_headers)(const unsigned char*, const unsigned long);
- int (*decode)(const char*, const unsigned long, const unsigned,
- const unsigned, char*);
- void (*swap_yuvbytes)(void*, unsigned long);
- void (*uyvy_to_rgbx)(u8*, unsigned long, u8*, u16, u8);
- void (*scale_up)(u8*, u8*, u16, u16, u16, u16, u16);
-
- u8 busy; /* read-only flag: module is/is not in use */
-};
-
-extern int w9968cf_vppmod_register(struct w9968cf_vpp_t*);
-extern int w9968cf_vppmod_deregister(struct w9968cf_vpp_t*);
-
-#endif /* _W9968CF_VPP_H_ */
+++ /dev/null
-/*
- * linux/drivers/video/riva/fbdev-i2c.c - nVidia i2c
- *
- * Maintained by Ani Joshi <ajoshi@shell.unixbox.com>
- *
- * Copyright 2004 Antonino A. Daplas <adaplas @pol.net>
- *
- * Based on radeonfb-i2c.c
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/fb.h>
-
-#include <asm/io.h>
-
-#include "rivafb.h"
-#include "../edid.h"
-
-#define RIVA_DDC 0x50
-
-static void riva_gpio_setscl(void* data, int state)
-{
- struct riva_i2c_chan *chan = (struct riva_i2c_chan *)data;
- struct riva_par *par = chan->par;
- u32 val;
-
- VGA_WR08(par->riva.PCIO, 0x3d4, chan->ddc_base + 1);
- val = VGA_RD08(par->riva.PCIO, 0x3d5) & 0xf0;
-
- if (state)
- val |= 0x20;
- else
- val &= ~0x20;
-
- VGA_WR08(par->riva.PCIO, 0x3d4, chan->ddc_base + 1);
- VGA_WR08(par->riva.PCIO, 0x3d5, val | 0x1);
-}
-
-static void riva_gpio_setsda(void* data, int state)
-{
- struct riva_i2c_chan *chan = (struct riva_i2c_chan *)data;
- struct riva_par *par = chan->par;
- u32 val;
-
- VGA_WR08(par->riva.PCIO, 0x3d4, chan->ddc_base + 1);
- val = VGA_RD08(par->riva.PCIO, 0x3d5) & 0xf0;
-
- if (state)
- val |= 0x10;
- else
- val &= ~0x10;
-
- VGA_WR08(par->riva.PCIO, 0x3d4, chan->ddc_base + 1);
- VGA_WR08(par->riva.PCIO, 0x3d5, val | 0x1);
-}
-
-static int riva_gpio_getscl(void* data)
-{
- struct riva_i2c_chan *chan = (struct riva_i2c_chan *)data;
- struct riva_par *par = chan->par;
- u32 val = 0;
-
- VGA_WR08(par->riva.PCIO, 0x3d4, chan->ddc_base);
- if (VGA_RD08(par->riva.PCIO, 0x3d5) & 0x04)
- val = 1;
-
- val = VGA_RD08(par->riva.PCIO, 0x3d5);
-
- return val;
-}
-
-static int riva_gpio_getsda(void* data)
-{
- struct riva_i2c_chan *chan = (struct riva_i2c_chan *)data;
- struct riva_par *par = chan->par;
- u32 val = 0;
-
- VGA_WR08(par->riva.PCIO, 0x3d4, chan->ddc_base);
- if (VGA_RD08(par->riva.PCIO, 0x3d5) & 0x08)
- val = 1;
-
- return val;
-}
-
-#define I2C_ALGO_RIVA 0x0e0000
-static int riva_setup_i2c_bus(struct riva_i2c_chan *chan, const char *name)
-{
- int rc;
-
- strcpy(chan->adapter.name, name);
- chan->adapter.owner = THIS_MODULE;
- chan->adapter.id = I2C_ALGO_RIVA;
- chan->adapter.algo_data = &chan->algo;
- chan->adapter.dev.parent = &chan->par->pdev->dev;
- chan->algo.setsda = riva_gpio_setsda;
- chan->algo.setscl = riva_gpio_setscl;
- chan->algo.getsda = riva_gpio_getsda;
- chan->algo.getscl = riva_gpio_getscl;
- chan->algo.udelay = 40;
- chan->algo.timeout = 20;
- chan->algo.data = chan;
-
- i2c_set_adapdata(&chan->adapter, chan);
-
- /* Raise SCL and SDA */
- riva_gpio_setsda(chan, 1);
- riva_gpio_setscl(chan, 1);
- udelay(20);
-
- rc = i2c_bit_add_bus(&chan->adapter);
- if (rc == 0)
- dev_dbg(&chan->par->pdev->dev, "I2C bus %s registered.\n", name);
- else
- dev_warn(&chan->par->pdev->dev, "Failed to register I2C bus %s.\n", name);
- return rc;
-}
-
-void riva_create_i2c_busses(struct riva_par *par)
-{
- par->chan[0].par = par;
- par->chan[1].par = par;
- par->chan[2].par = par;
-
- switch (par->riva.Architecture) {
-#if 0 /* no support yet for other nVidia chipsets */
- par->chan[2].ddc_base = 0x50;
- riva_setup_i2c_bus(&par->chan[2], "BUS2");
-#endif
- case NV_ARCH_10:
- case NV_ARCH_20:
- case NV_ARCH_04:
- par->chan[1].ddc_base = 0x36;
- riva_setup_i2c_bus(&par->chan[1], "BUS1");
- case NV_ARCH_03:
- par->chan[0].ddc_base = 0x3e;
- riva_setup_i2c_bus(&par->chan[0], "BUS0");
- }
-}
-
-void riva_delete_i2c_busses(struct riva_par *par)
-{
- if (par->chan[0].par)
- i2c_bit_del_bus(&par->chan[0].adapter);
- par->chan[0].par = NULL;
-
- if (par->chan[1].par)
- i2c_bit_del_bus(&par->chan[1].adapter);
- par->chan[1].par = NULL;
-
-}
-
-static u8 *riva_do_probe_i2c_edid(struct riva_i2c_chan *chan)
-{
- u8 start = 0x0;
- struct i2c_msg msgs[] = {
- {
- .addr = RIVA_DDC,
- .len = 1,
- .buf = &start,
- }, {
- .addr = RIVA_DDC,
- .flags = I2C_M_RD,
- .len = EDID_LENGTH,
- },
- };
- u8 *buf;
-
- buf = kmalloc(EDID_LENGTH, GFP_KERNEL);
- if (!buf) {
- dev_warn(&chan->par->pdev->dev, "Out of memory!\n");
- return NULL;
- }
- msgs[1].buf = buf;
-
- if (i2c_transfer(&chan->adapter, msgs, 2) == 2)
- return buf;
- dev_dbg(&chan->par->pdev->dev, "Unable to read EDID block.\n");
- kfree(buf);
- return NULL;
-}
-
-int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid)
-{
- u8 *edid = NULL;
- int i;
-
- for (i = 0; i < 3; i++) {
- /* Do the real work */
- edid = riva_do_probe_i2c_edid(&par->chan[conn-1]);
- if (edid)
- break;
- }
- if (out_edid)
- *out_edid = edid;
- if (!edid)
- return 1;
-
- return 0;
-}
-
+++ /dev/null
-menu "Dallas's 1-wire bus"
-
-config W1
- tristate "Dallas's 1-wire support"
- ---help---
- Dallas's 1-wire bus is usefull to connect slow 1-pin devices
- such as iButtons and thermal sensors.
-
- If you want W1 support, you should say Y here.
-
- This W1 support can also be built as a module. If so, the module
- will be called wire.ko.
-
-config W1_MATROX
- tristate "Matrox G400 transport layer for 1-wire"
- depends on W1
- help
- Say Y here if you want to communicate with your 1-wire devices
- using Matrox's G400 GPIO pins.
-
- This support is also available as a module. If so, the module
- will be called matrox_w1.ko.
-
-config W1_THERM
- tristate "Thermal family implementation"
- depends on W1
- help
- Say Y here if you want to connect 1-wire thermal sensors to you
- wire.
-
-endmenu
+++ /dev/null
-#
-# Makefile for the Dallas's 1-wire bus.
-#
-
-obj-$(CONFIG_W1) += wire.o
-wire-objs := w1.o w1_int.o w1_family.o w1_netlink.o w1_io.o
-
-obj-$(CONFIG_W1_MATROX) += matrox_w1.o
-obj-$(CONFIG_W1_THERM) += w1_therm.o
+++ /dev/null
-/*
- * matrox_w1.c
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <asm/atomic.h>
-#include <asm/types.h>
-#include <asm/io.h>
-#include <asm/delay.h>
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/timer.h>
-#include <linux/slab.h>
-#include <linux/pci_ids.h>
-#include <linux/pci.h>
-#include <linux/timer.h>
-
-#include "w1.h"
-#include "w1_int.h"
-#include "w1_log.h"
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
-MODULE_DESCRIPTION("Driver for transport(Dallas 1-wire prtocol) over VGA DDC(matrox gpio).");
-
-static struct pci_device_id matrox_w1_tbl[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_MATROX, PCI_DEVICE_ID_MATROX_G400) },
- { },
-};
-MODULE_DEVICE_TABLE(pci, matrox_w1_tbl);
-
-static int __devinit matrox_w1_probe(struct pci_dev *, const struct pci_device_id *);
-static void __devexit matrox_w1_remove(struct pci_dev *);
-
-static struct pci_driver matrox_w1_pci_driver = {
- .name = "matrox_w1",
- .id_table = matrox_w1_tbl,
- .probe = matrox_w1_probe,
- .remove = __devexit_p(matrox_w1_remove),
-};
-
-/*
- * Matrox G400 DDC registers.
- */
-
-#define MATROX_G400_DDC_CLK (1<<4)
-#define MATROX_G400_DDC_DATA (1<<1)
-
-#define MATROX_BASE 0x3C00
-#define MATROX_STATUS 0x1e14
-
-#define MATROX_PORT_INDEX_OFFSET 0x00
-#define MATROX_PORT_DATA_OFFSET 0x0A
-
-#define MATROX_GET_CONTROL 0x2A
-#define MATROX_GET_DATA 0x2B
-#define MATROX_CURSOR_CTL 0x06
-
-struct matrox_device
-{
- unsigned long base_addr;
- unsigned long port_index, port_data;
- u8 data_mask;
-
- unsigned long phys_addr, virt_addr;
- unsigned long found;
-
- struct w1_bus_master *bus_master;
-};
-
-static u8 matrox_w1_read_ddc_bit(unsigned long);
-static void matrox_w1_write_ddc_bit(unsigned long, u8);
-
-/*
- * These functions read and write DDC Data bit.
- *
- * Using tristate pins, since i can't fin any open-drain pin in whole motherboard.
- * Unfortunately we can't connect to Intel's 82801xx IO controller
- * since we don't know motherboard schema, wich has pretty unused(may be not) GPIO.
- *
- * I've heard that PIIX also has open drain pin.
- *
- * Port mapping.
- */
-static __inline__ u8 matrox_w1_read_reg(struct matrox_device *dev, u8 reg)
-{
- u8 ret;
-
- writeb(reg, dev->port_index);
- ret = readb(dev->port_data);
- barrier();
-
- return ret;
-}
-
-static __inline__ void matrox_w1_write_reg(struct matrox_device *dev, u8 reg, u8 val)
-{
- writeb(reg, dev->port_index);
- writeb(val, dev->port_data);
- wmb();
-}
-
-static void matrox_w1_write_ddc_bit(unsigned long data, u8 bit)
-{
- u8 ret;
- struct matrox_device *dev = (struct matrox_device *) data;
-
- if (bit)
- bit = 0;
- else
- bit = dev->data_mask;
-
- ret = matrox_w1_read_reg(dev, MATROX_GET_CONTROL);
- matrox_w1_write_reg(dev, MATROX_GET_CONTROL, ((ret & ~dev->data_mask) | bit));
- matrox_w1_write_reg(dev, MATROX_GET_DATA, 0x00);
-}
-
-static u8 matrox_w1_read_ddc_bit(unsigned long data)
-{
- u8 ret;
- struct matrox_device *dev = (struct matrox_device *) data;
-
- ret = matrox_w1_read_reg(dev, MATROX_GET_DATA);
-
- return ret;
-}
-
-static void matrox_w1_hw_init(struct matrox_device *dev)
-{
- matrox_w1_write_reg(dev, MATROX_GET_DATA, 0xFF);
- matrox_w1_write_reg(dev, MATROX_GET_CONTROL, 0x00);
-}
-
-static int __devinit matrox_w1_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- struct matrox_device *dev;
- int err;
-
- assert(pdev != NULL);
- assert(ent != NULL);
-
- if (pdev->vendor != PCI_VENDOR_ID_MATROX || pdev->device != PCI_DEVICE_ID_MATROX_G400)
- return -ENODEV;
-
- dev = kmalloc(sizeof(struct matrox_device) +
- sizeof(struct w1_bus_master), GFP_KERNEL);
- if (!dev) {
- dev_err(&pdev->dev,
- "%s: Failed to create new matrox_device object.\n",
- __func__);
- return -ENOMEM;
- }
-
- memset(dev, 0, sizeof(struct matrox_device) + sizeof(struct w1_bus_master));
-
- dev->bus_master = (struct w1_bus_master *)(dev + 1);
-
- /*
- * True for G400, for some other we need resource 0, see drivers/video/matrox/matroxfb_base.c
- */
-
- dev->phys_addr = pci_resource_start(pdev, 1);
-
- dev->virt_addr =
- (unsigned long) ioremap_nocache(dev->phys_addr, 16384);
- if (!dev->virt_addr) {
- dev_err(&pdev->dev, "%s: failed to ioremap(0x%lx, %d).\n",
- __func__, dev->phys_addr, 16384);
- err = -EIO;
- goto err_out_free_device;
- }
-
- dev->base_addr = dev->virt_addr + MATROX_BASE;
- dev->port_index = dev->base_addr + MATROX_PORT_INDEX_OFFSET;
- dev->port_data = dev->base_addr + MATROX_PORT_DATA_OFFSET;
- dev->data_mask = (MATROX_G400_DDC_DATA);
-
- matrox_w1_hw_init(dev);
-
- dev->bus_master->data = (unsigned long) dev;
- dev->bus_master->read_bit = &matrox_w1_read_ddc_bit;
- dev->bus_master->write_bit = &matrox_w1_write_ddc_bit;
-
- err = w1_add_master_device(dev->bus_master);
- if (err)
- goto err_out_free_device;
-
- pci_set_drvdata(pdev, dev);
-
- dev->found = 1;
-
- dev_info(&pdev->dev, "Matrox G400 GPIO transport layer for 1-wire.\n");
-
- return 0;
-
-err_out_free_device:
- kfree(dev);
-
- return err;
-}
-
-static void __devexit matrox_w1_remove(struct pci_dev *pdev)
-{
- struct matrox_device *dev = pci_get_drvdata(pdev);
-
- assert(dev != NULL);
-
- if (dev->found) {
- w1_remove_master_device(dev->bus_master);
- iounmap((void *) dev->virt_addr);
- }
- kfree(dev);
-}
-
-static int __init matrox_w1_init(void)
-{
- return pci_module_init(&matrox_w1_pci_driver);
-}
-
-static void __exit matrox_w1_fini(void)
-{
- pci_unregister_driver(&matrox_w1_pci_driver);
-}
-
-module_init(matrox_w1_init);
-module_exit(matrox_w1_fini);
+++ /dev/null
-/*
- * w1.c
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <asm/atomic.h>
-#include <asm/delay.h>
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/timer.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/suspend.h>
-
-#include "w1.h"
-#include "w1_io.h"
-#include "w1_log.h"
-#include "w1_int.h"
-#include "w1_family.h"
-#include "w1_netlink.h"
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
-MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol.");
-
-static int w1_timeout = 5 * HZ;
-int w1_max_slave_count = 10;
-
-module_param_named(timeout, w1_timeout, int, 0);
-module_param_named(max_slave_count, w1_max_slave_count, int, 0);
-
-spinlock_t w1_mlock = SPIN_LOCK_UNLOCKED;
-LIST_HEAD(w1_masters);
-
-static pid_t control_thread;
-static int control_needs_exit;
-static DECLARE_COMPLETION(w1_control_complete);
-static DECLARE_WAIT_QUEUE_HEAD(w1_control_wait);
-
-static int w1_master_match(struct device *dev, struct device_driver *drv)
-{
- return 1;
-}
-
-static int w1_master_probe(struct device *dev)
-{
- return -ENODEV;
-}
-
-static int w1_master_remove(struct device *dev)
-{
- return 0;
-}
-
-static void w1_master_release(struct device *dev)
-{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
-
- complete(&md->dev_released);
-}
-
-static void w1_slave_release(struct device *dev)
-{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
- complete(&sl->dev_released);
-}
-
-static ssize_t w1_default_read_name(struct device *dev, char *buf)
-{
- return sprintf(buf, "No family registered.\n");
-}
-
-static ssize_t w1_default_read_bin(struct kobject *kobj, char *buf, loff_t off,
- size_t count)
-{
- return sprintf(buf, "No family registered.\n");
-}
-
-struct bus_type w1_bus_type = {
- .name = "w1",
- .match = w1_master_match,
-};
-
-struct device_driver w1_driver = {
- .name = "w1_driver",
- .bus = &w1_bus_type,
- .probe = w1_master_probe,
- .remove = w1_master_remove,
-};
-
-struct device w1_device = {
- .parent = NULL,
- .bus = &w1_bus_type,
- .bus_id = "w1 bus master",
- .driver = &w1_driver,
- .release = &w1_master_release
-};
-
-static struct device_attribute w1_slave_attribute = {
- .attr = {
- .name = "name",
- .mode = S_IRUGO,
- .owner = THIS_MODULE
- },
- .show = &w1_default_read_name,
-};
-
-static struct device_attribute w1_slave_attribute_val = {
- .attr = {
- .name = "value",
- .mode = S_IRUGO,
- .owner = THIS_MODULE
- },
- .show = &w1_default_read_name,
-};
-
-static ssize_t w1_master_attribute_show(struct device *dev, char *buf)
-{
- return sprintf(buf, "please fix me\n");
-#if 0
- struct w1_master *md = container_of(dev, struct w1_master, dev);
- int c = PAGE_SIZE;
-
- if (down_interruptible(&md->mutex))
- return -EBUSY;
-
- c -= snprintf(buf + PAGE_SIZE - c, c, "%s\n", md->name);
- c -= snprintf(buf + PAGE_SIZE - c, c,
- "bus_master=0x%p, timeout=%d, max_slave_count=%d, attempts=%lu\n",
- md->bus_master, w1_timeout, md->max_slave_count,
- md->attempts);
- c -= snprintf(buf + PAGE_SIZE - c, c, "%d slaves: ",
- md->slave_count);
- if (md->slave_count == 0)
- c -= snprintf(buf + PAGE_SIZE - c, c, "no.\n");
- else {
- struct list_head *ent, *n;
- struct w1_slave *sl;
-
- list_for_each_safe(ent, n, &md->slist) {
- sl = list_entry(ent, struct w1_slave, w1_slave_entry);
-
- c -= snprintf(buf + PAGE_SIZE - c, c, "%s[%p] ",
- sl->name, sl);
- }
- c -= snprintf(buf + PAGE_SIZE - c, c, "\n");
- }
-
- up(&md->mutex);
-
- return PAGE_SIZE - c;
-#endif
-}
-
-struct device_attribute w1_master_attribute = {
- .attr = {
- .name = "w1_master_stats",
- .mode = S_IRUGO,
- .owner = THIS_MODULE,
- },
- .show = &w1_master_attribute_show,
-};
-
-static struct bin_attribute w1_slave_bin_attribute = {
- .attr = {
- .name = "w1_slave",
- .mode = S_IRUGO,
- .owner = THIS_MODULE,
- },
- .size = W1_SLAVE_DATA_SIZE,
- .read = &w1_default_read_bin,
-};
-
-static int __w1_attach_slave_device(struct w1_slave *sl)
-{
- int err;
-
- sl->dev.parent = &sl->master->dev;
- sl->dev.driver = sl->master->driver;
- sl->dev.bus = &w1_bus_type;
- sl->dev.release = &w1_slave_release;
-
- snprintf(&sl->dev.bus_id[0], sizeof(sl->dev.bus_id),
- "%x-%llx",
- (unsigned int) sl->reg_num.family,
- (unsigned long long) sl->reg_num.id);
- snprintf (&sl->name[0], sizeof(sl->name),
- "%x-%llx",
- (unsigned int) sl->reg_num.family,
- (unsigned long long) sl->reg_num.id);
-
- dev_dbg(&sl->dev, "%s: registering %s.\n", __func__,
- &sl->dev.bus_id[0]);
-
- err = device_register(&sl->dev);
- if (err < 0) {
- dev_err(&sl->dev,
- "Device registration [%s] failed. err=%d\n",
- sl->dev.bus_id, err);
- return err;
- }
-
- w1_slave_bin_attribute.read = sl->family->fops->rbin;
- w1_slave_attribute.show = sl->family->fops->rname;
- w1_slave_attribute_val.show = sl->family->fops->rval;
- w1_slave_attribute_val.attr.name = sl->family->fops->rvalname;
-
- err = device_create_file(&sl->dev, &w1_slave_attribute);
- if (err < 0) {
- dev_err(&sl->dev,
- "sysfs file creation for [%s] failed. err=%d\n",
- sl->dev.bus_id, err);
- device_unregister(&sl->dev);
- return err;
- }
-
- err = device_create_file(&sl->dev, &w1_slave_attribute_val);
- if (err < 0) {
- dev_err(&sl->dev,
- "sysfs file creation for [%s] failed. err=%d\n",
- sl->dev.bus_id, err);
- device_remove_file(&sl->dev, &w1_slave_attribute);
- device_unregister(&sl->dev);
- return err;
- }
-
- err = sysfs_create_bin_file(&sl->dev.kobj, &w1_slave_bin_attribute);
- if (err < 0) {
- dev_err(&sl->dev,
- "sysfs file creation for [%s] failed. err=%d\n",
- sl->dev.bus_id, err);
- device_remove_file(&sl->dev, &w1_slave_attribute);
- device_remove_file(&sl->dev, &w1_slave_attribute_val);
- device_unregister(&sl->dev);
- return err;
- }
-
- list_add_tail(&sl->w1_slave_entry, &sl->master->slist);
-
- return 0;
-}
-
-static int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn)
-{
- struct w1_slave *sl;
- struct w1_family *f;
- int err;
-
- sl = kmalloc(sizeof(struct w1_slave), GFP_KERNEL);
- if (!sl) {
- dev_err(&dev->dev,
- "%s: failed to allocate new slave device.\n",
- __func__);
- return -ENOMEM;
- }
-
- memset(sl, 0, sizeof(*sl));
-
- sl->owner = THIS_MODULE;
- sl->master = dev;
-
- memcpy(&sl->reg_num, rn, sizeof(sl->reg_num));
- atomic_set(&sl->refcnt, 0);
- init_completion(&sl->dev_released);
-
- spin_lock(&w1_flock);
- f = w1_family_registered(rn->family);
- if (!f) {
- spin_unlock(&w1_flock);
- dev_info(&dev->dev, "Family %x is not registered.\n",
- rn->family);
- kfree(sl);
- return -ENODEV;
- }
- __w1_family_get(f);
- spin_unlock(&w1_flock);
-
- sl->family = f;
-
-
- err = __w1_attach_slave_device(sl);
- if (err < 0) {
- dev_err(&dev->dev, "%s: Attaching %s failed.\n", __func__,
- sl->name);
- w1_family_put(sl->family);
- kfree(sl);
- return err;
- }
-
- dev->slave_count++;
-
- return 0;
-}
-
-static void w1_slave_detach(struct w1_slave *sl)
-{
- dev_info(&sl->dev, "%s: detaching %s.\n", __func__, sl->name);
-
- while (atomic_read(&sl->refcnt))
- schedule_timeout(10);
-
- sysfs_remove_bin_file(&sl->dev.kobj, &w1_slave_bin_attribute);
- device_remove_file(&sl->dev, &w1_slave_attribute);
- device_unregister(&sl->dev);
- w1_family_put(sl->family);
-}
-
-static void w1_search(struct w1_master *dev)
-{
- u64 last, rn, tmp;
- int i, count = 0, slave_count;
- int last_family_desc, last_zero, last_device;
- int search_bit, id_bit, comp_bit, desc_bit;
- struct list_head *ent;
- struct w1_slave *sl;
- int family_found = 0;
- struct w1_netlink_msg msg;
-
- dev->attempts++;
-
- memset(&msg, 0, sizeof(msg));
-
- search_bit = id_bit = comp_bit = 0;
- rn = tmp = last = 0;
- last_device = last_zero = last_family_desc = 0;
-
- desc_bit = 64;
-
- while (!(id_bit && comp_bit) && !last_device
- && count++ < dev->max_slave_count) {
- last = rn;
- rn = 0;
-
- last_family_desc = 0;
-
- /*
- * Reset bus and all 1-wire device state machines
- * so they can respond to our requests.
- *
- * Return 0 - device(s) present, 1 - no devices present.
- */
- if (w1_reset_bus(dev)) {
- dev_info(&dev->dev, "No devices present on the wire.\n");
- break;
- }
-
-#if 1
- memset(&msg, 0, sizeof(msg));
-
- w1_write_8(dev, W1_SEARCH);
- for (i = 0; i < 64; ++i) {
- /*
- * Read 2 bits from bus.
- * All who don't sleep must send ID bit and COMPLEMENT ID bit.
- * They actually are ANDed between all senders.
- */
- id_bit = w1_read_bit(dev);
- comp_bit = w1_read_bit(dev);
-
- if (id_bit && comp_bit)
- break;
-
- if (id_bit == 0 && comp_bit == 0) {
- if (i == desc_bit)
- search_bit = 1;
- else if (i > desc_bit)
- search_bit = 0;
- else
- search_bit = ((last >> i) & 0x1);
-
- if (search_bit == 0) {
- last_zero = i;
- if (last_zero < 9)
- last_family_desc = last_zero;
- }
-
- }
- else
- search_bit = id_bit;
-
- tmp = search_bit;
- rn |= (tmp << i);
-
- /*
- * Write 1 bit to bus
- * and make all who don't have "search_bit" in "i"'th position
- * in it's registration number sleep.
- */
- w1_write_bit(dev, search_bit);
-
- }
-#endif
- msg.id.w1_id = rn;
- msg.val = w1_calc_crc8((u8 *) & rn, 7);
- w1_netlink_send(dev, &msg);
-
- if (desc_bit == last_zero)
- last_device = 1;
-
- desc_bit = last_zero;
-
- slave_count = 0;
- list_for_each(ent, &dev->slist) {
- struct w1_reg_num *tmp;
-
- tmp = (struct w1_reg_num *) &rn;
-
- sl = list_entry(ent, struct w1_slave, w1_slave_entry);
-
- if (sl->reg_num.family == tmp->family &&
- sl->reg_num.id == tmp->id &&
- sl->reg_num.crc == tmp->crc)
- break;
- else if (sl->reg_num.family == tmp->family) {
- family_found = 1;
- break;
- }
-
- slave_count++;
- }
-
- if (slave_count == dev->slave_count &&
- msg.val && (*((__u8 *) & msg.val) == msg.id.id.crc)) {
- w1_attach_slave_device(dev, (struct w1_reg_num *) &rn);
- }
- }
-}
-
-int w1_control(void *data)
-{
- struct w1_slave *sl;
- struct w1_master *dev;
- struct list_head *ent, *ment, *n, *mn;
- int err, have_to_wait = 0, timeout;
-
- daemonize("w1_control");
- allow_signal(SIGTERM);
-
- while (!control_needs_exit || have_to_wait) {
- have_to_wait = 0;
-
- timeout = w1_timeout;
- do {
- timeout = interruptible_sleep_on_timeout(&w1_control_wait, timeout);
- if (current->flags & PF_FREEZE)
- refrigerator(PF_FREEZE);
- } while (!signal_pending(current) && (timeout > 0));
-
- if (signal_pending(current))
- flush_signals(current);
-
- list_for_each_safe(ment, mn, &w1_masters) {
- dev = list_entry(ment, struct w1_master, w1_master_entry);
-
- if (!control_needs_exit && !dev->need_exit)
- continue;
- /*
- * Little race: we can create thread but not set the flag.
- * Get a chance for external process to set flag up.
- */
- if (!dev->initialized) {
- have_to_wait = 1;
- continue;
- }
-
- spin_lock(&w1_mlock);
- list_del(&dev->w1_master_entry);
- spin_unlock(&w1_mlock);
-
- if (control_needs_exit) {
- dev->need_exit = 1;
-
- err = kill_proc(dev->kpid, SIGTERM, 1);
- if (err)
- dev_err(&dev->dev,
- "Failed to send signal to w1 kernel thread %d.\n",
- dev->kpid);
- }
-
- wait_for_completion(&dev->dev_exited);
-
- list_for_each_safe(ent, n, &dev->slist) {
- sl = list_entry(ent, struct w1_slave, w1_slave_entry);
-
- if (!sl)
- dev_warn(&dev->dev,
- "%s: slave entry is NULL.\n",
- __func__);
- else {
- list_del(&sl->w1_slave_entry);
-
- w1_slave_detach(sl);
- kfree(sl);
- }
- }
- device_remove_file(&dev->dev, &w1_master_attribute);
- atomic_dec(&dev->refcnt);
- }
- }
-
- complete_and_exit(&w1_control_complete, 0);
-}
-
-int w1_process(void *data)
-{
- struct w1_master *dev = (struct w1_master *) data;
- unsigned long timeout;
-
- daemonize("%s", dev->name);
- allow_signal(SIGTERM);
-
- while (!dev->need_exit) {
- timeout = w1_timeout;
- do {
- timeout = interruptible_sleep_on_timeout(&dev->kwait, timeout);
- if (current->flags & PF_FREEZE)
- refrigerator(PF_FREEZE);
- } while (!signal_pending(current) && (timeout > 0));
-
- if (signal_pending(current))
- flush_signals(current);
-
- if (dev->need_exit)
- break;
-
- if (!dev->initialized)
- continue;
-
- if (down_interruptible(&dev->mutex))
- continue;
- w1_search(dev);
- up(&dev->mutex);
- }
-
- atomic_dec(&dev->refcnt);
- complete_and_exit(&dev->dev_exited, 0);
-
- return 0;
-}
-
-int w1_init(void)
-{
- int retval;
-
- printk(KERN_INFO "Driver for 1-wire Dallas network protocol.\n");
-
- retval = bus_register(&w1_bus_type);
- if (retval) {
- printk(KERN_ERR "Failed to register bus. err=%d.\n", retval);
- goto err_out_exit_init;
- }
-
- retval = driver_register(&w1_driver);
- if (retval) {
- printk(KERN_ERR
- "Failed to register master driver. err=%d.\n",
- retval);
- goto err_out_bus_unregister;
- }
-
- control_thread = kernel_thread(&w1_control, NULL, 0);
- if (control_thread < 0) {
- printk(KERN_ERR "Failed to create control thread. err=%d\n",
- control_thread);
- retval = control_thread;
- goto err_out_driver_unregister;
- }
-
- return 0;
-
-err_out_driver_unregister:
- driver_unregister(&w1_driver);
-
-err_out_bus_unregister:
- bus_unregister(&w1_bus_type);
-
-err_out_exit_init:
- return retval;
-}
-
-void w1_fini(void)
-{
- struct w1_master *dev;
- struct list_head *ent, *n;
-
- list_for_each_safe(ent, n, &w1_masters) {
- dev = list_entry(ent, struct w1_master, w1_master_entry);
- __w1_remove_master_device(dev);
- }
-
- control_needs_exit = 1;
-
- wait_for_completion(&w1_control_complete);
-
- driver_unregister(&w1_driver);
- bus_unregister(&w1_bus_type);
-}
-
-module_init(w1_init);
-module_exit(w1_fini);
+++ /dev/null
-/*
- * w1.h
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __W1_H
-#define __W1_H
-
-struct w1_reg_num
-{
- __u64 family:8,
- id:48,
- crc:8;
-};
-
-#ifdef __KERNEL__
-
-#include <linux/completion.h>
-#include <linux/device.h>
-
-#include <net/sock.h>
-
-#include <asm/semaphore.h>
-
-#include "w1_family.h"
-
-#define W1_MAXNAMELEN 32
-#define W1_SLAVE_DATA_SIZE 128
-
-#define W1_SEARCH 0xF0
-#define W1_CONDITIONAL_SEARCH 0xEC
-#define W1_CONVERT_TEMP 0x44
-#define W1_SKIP_ROM 0xCC
-#define W1_READ_SCRATCHPAD 0xBE
-#define W1_READ_ROM 0x33
-#define W1_READ_PSUPPLY 0xB4
-#define W1_MATCH_ROM 0x55
-
-struct w1_slave
-{
- struct module *owner;
- unsigned char name[W1_MAXNAMELEN];
- struct list_head w1_slave_entry;
- struct w1_reg_num reg_num;
- atomic_t refcnt;
- u8 rom[9];
-
- struct w1_master *master;
- struct w1_family *family;
- struct device dev;
- struct completion dev_released;
-};
-
-struct w1_bus_master
-{
- unsigned long data;
-
- u8 (*read_bit)(unsigned long);
- void (*write_bit)(unsigned long, u8);
-};
-
-struct w1_master
-{
- struct list_head w1_master_entry;
- struct module *owner;
- unsigned char name[W1_MAXNAMELEN];
- struct list_head slist;
- int max_slave_count, slave_count;
- unsigned long attempts;
- int initialized;
- u32 id;
-
- atomic_t refcnt;
-
- void *priv;
- int priv_size;
-
- int need_exit;
- pid_t kpid;
- wait_queue_head_t kwait;
- struct semaphore mutex;
-
- struct device_driver *driver;
- struct device dev;
- struct completion dev_released;
- struct completion dev_exited;
-
- struct w1_bus_master *bus_master;
-
- u32 seq, groups;
- struct sock *nls;
-};
-
-#endif /* __KERNEL__ */
-
-#endif /* __W1_H */
+++ /dev/null
-/*
- * w1_family.c
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/spinlock.h>
-#include <linux/list.h>
-
-#include "w1_family.h"
-
-spinlock_t w1_flock = SPIN_LOCK_UNLOCKED;
-static LIST_HEAD(w1_families);
-
-int w1_register_family(struct w1_family *newf)
-{
- struct list_head *ent, *n;
- struct w1_family *f;
- int ret = 0;
-
- spin_lock(&w1_flock);
- list_for_each_safe(ent, n, &w1_families) {
- f = list_entry(ent, struct w1_family, family_entry);
-
- if (f->fid == newf->fid) {
- ret = -EEXIST;
- break;
- }
- }
-
- if (!ret) {
- atomic_set(&newf->refcnt, 0);
- newf->need_exit = 0;
- list_add_tail(&newf->family_entry, &w1_families);
- }
-
- spin_unlock(&w1_flock);
-
- return ret;
-}
-
-void w1_unregister_family(struct w1_family *fent)
-{
- struct list_head *ent, *n;
- struct w1_family *f;
-
- spin_lock(&w1_flock);
- list_for_each_safe(ent, n, &w1_families) {
- f = list_entry(ent, struct w1_family, family_entry);
-
- if (f->fid == fent->fid) {
- list_del(&fent->family_entry);
- break;
- }
- }
-
- fent->need_exit = 1;
-
- spin_unlock(&w1_flock);
-
- while (atomic_read(&fent->refcnt))
- schedule_timeout(10);
-}
-
-/*
- * Should be called under w1_flock held.
- */
-struct w1_family * w1_family_registered(u8 fid)
-{
- struct list_head *ent, *n;
- struct w1_family *f = NULL;
- int ret = 0;
-
- list_for_each_safe(ent, n, &w1_families) {
- f = list_entry(ent, struct w1_family, family_entry);
-
- if (f->fid == fid) {
- ret = 1;
- break;
- }
- }
-
- return (ret) ? f : NULL;
-}
-
-void w1_family_put(struct w1_family *f)
-{
- spin_lock(&w1_flock);
- __w1_family_put(f);
- spin_unlock(&w1_flock);
-}
-
-void __w1_family_put(struct w1_family *f)
-{
- if (atomic_dec_and_test(&f->refcnt))
- f->need_exit = 1;
-}
-
-void w1_family_get(struct w1_family *f)
-{
- spin_lock(&w1_flock);
- __w1_family_get(f);
- spin_unlock(&w1_flock);
-
-}
-
-void __w1_family_get(struct w1_family *f)
-{
- atomic_inc(&f->refcnt);
-}
-
-EXPORT_SYMBOL(w1_family_get);
-EXPORT_SYMBOL(w1_family_put);
-EXPORT_SYMBOL(__w1_family_get);
-EXPORT_SYMBOL(__w1_family_put);
-EXPORT_SYMBOL(w1_family_registered);
-EXPORT_SYMBOL(w1_unregister_family);
-EXPORT_SYMBOL(w1_register_family);
+++ /dev/null
-/*
- * w1_family.h
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __W1_FAMILY_H
-#define __W1_FAMILY_H
-
-#include <linux/types.h>
-#include <linux/device.h>
-#include <asm/atomic.h>
-
-#define W1_FAMILY_DEFAULT 0
-#define W1_FAMILY_THERM 0x10
-#define W1_FAMILY_IBUT 0xff /* ? */
-
-#define MAXNAMELEN 32
-
-struct w1_family_ops
-{
- ssize_t (* rname)(struct device *, char *);
- ssize_t (* rbin)(struct kobject *, char *, loff_t, size_t);
-
- ssize_t (* rval)(struct device *, char *);
- unsigned char rvalname[MAXNAMELEN];
-};
-
-struct w1_family
-{
- struct list_head family_entry;
- u8 fid;
-
- struct w1_family_ops *fops;
-
- atomic_t refcnt;
- u8 need_exit;
-};
-
-extern spinlock_t w1_flock;
-
-void w1_family_get(struct w1_family *);
-void w1_family_put(struct w1_family *);
-void __w1_family_get(struct w1_family *);
-void __w1_family_put(struct w1_family *);
-struct w1_family * w1_family_registered(u8);
-void w1_unregister_family(struct w1_family *);
-int w1_register_family(struct w1_family *);
-
-#endif /* __W1_FAMILY_H */
+++ /dev/null
-/*
- * w1_int.c
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/list.h>
-
-#include "w1.h"
-#include "w1_log.h"
-
-static u32 w1_ids = 1;
-
-extern struct device_driver w1_driver;
-extern struct bus_type w1_bus_type;
-extern struct device w1_device;
-extern struct device_attribute w1_master_attribute;
-extern int w1_max_slave_count;
-extern struct list_head w1_masters;
-extern spinlock_t w1_mlock;
-
-extern int w1_process(void *);
-
-struct w1_master * w1_alloc_dev(u32 id, int slave_count,
- struct device_driver *driver, struct device *device)
-{
- struct w1_master *dev;
- int err;
-
- /*
- * We are in process context(kernel thread), so can sleep.
- */
- dev = kmalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL);
- if (!dev) {
- printk(KERN_ERR
- "Failed to allocate %d bytes for new w1 device.\n",
- sizeof(struct w1_master));
- return NULL;
- }
-
- memset(dev, 0, sizeof(struct w1_master) + sizeof(struct w1_bus_master));
-
- dev->bus_master = (struct w1_bus_master *)(dev + 1);
-
- dev->owner = THIS_MODULE;
- dev->max_slave_count = slave_count;
- dev->slave_count = 0;
- dev->attempts = 0;
- dev->kpid = -1;
- dev->initialized = 0;
- dev->id = id;
-
- atomic_set(&dev->refcnt, 2);
-
- INIT_LIST_HEAD(&dev->slist);
- init_MUTEX(&dev->mutex);
-
- init_waitqueue_head(&dev->kwait);
- init_completion(&dev->dev_released);
- init_completion(&dev->dev_exited);
-
- memcpy(&dev->dev, device, sizeof(struct device));
- snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
- "w1_bus_master%u", dev->id);
- snprintf(dev->name, sizeof(dev->name), "w1_bus_master%u", dev->id);
-
- dev->driver = driver;
-
- dev->groups = 23;
- dev->seq = 1;
- dev->nls = netlink_kernel_create(NETLINK_NFLOG, NULL);
- if (!dev->nls) {
- printk(KERN_ERR "Failed to create new netlink socket(%u).\n",
- NETLINK_NFLOG);
- memset(dev, 0, sizeof(struct w1_master));
- kfree(dev);
- dev = NULL;
- }
-
- err = device_register(&dev->dev);
- if (err) {
- printk(KERN_ERR "Failed to register master device. err=%d\n", err);
- if (dev->nls->sk_socket)
- sock_release(dev->nls->sk_socket);
- memset(dev, 0, sizeof(struct w1_master));
- kfree(dev);
- dev = NULL;
- }
-
- return dev;
-}
-
-void w1_free_dev(struct w1_master *dev)
-{
- device_unregister(&dev->dev);
- if (dev->nls->sk_socket)
- sock_release(dev->nls->sk_socket);
- memset(dev, 0, sizeof(struct w1_master) + sizeof(struct w1_bus_master));
- kfree(dev);
-}
-
-int w1_add_master_device(struct w1_bus_master *master)
-{
- struct w1_master *dev;
- int retval = 0;
-
- dev = w1_alloc_dev(w1_ids++, w1_max_slave_count, &w1_driver, &w1_device);
- if (!dev)
- return -ENOMEM;
-
- dev->kpid = kernel_thread(&w1_process, dev, 0);
- if (dev->kpid < 0) {
- dev_err(&dev->dev,
- "Failed to create new kernel thread. err=%d\n",
- dev->kpid);
- retval = dev->kpid;
- goto err_out_free_dev;
- }
-
- retval = device_create_file(&dev->dev, &w1_master_attribute);
- if (retval)
- goto err_out_kill_thread;
-
- memcpy(dev->bus_master, master, sizeof(struct w1_bus_master));
-
- dev->initialized = 1;
-
- spin_lock(&w1_mlock);
- list_add(&dev->w1_master_entry, &w1_masters);
- spin_unlock(&w1_mlock);
-
- return 0;
-
-err_out_kill_thread:
- dev->need_exit = 1;
- if (kill_proc(dev->kpid, SIGTERM, 1))
- dev_err(&dev->dev,
- "Failed to send signal to w1 kernel thread %d.\n",
- dev->kpid);
- wait_for_completion(&dev->dev_exited);
-
-err_out_free_dev:
- w1_free_dev(dev);
-
- return retval;
-}
-
-void __w1_remove_master_device(struct w1_master *dev)
-{
- int err;
-
- dev->need_exit = 1;
- err = kill_proc(dev->kpid, SIGTERM, 1);
- if (err)
- dev_err(&dev->dev,
- "%s: Failed to send signal to w1 kernel thread %d.\n",
- __func__, dev->kpid);
-
- while (atomic_read(&dev->refcnt))
- schedule_timeout(10);
-
- w1_free_dev(dev);
-}
-
-void w1_remove_master_device(struct w1_bus_master *bm)
-{
- struct w1_master *dev = NULL;
- struct list_head *ent, *n;
-
- list_for_each_safe(ent, n, &w1_masters) {
- dev = list_entry(ent, struct w1_master, w1_master_entry);
- if (!dev->initialized)
- continue;
-
- if (dev->bus_master->data == bm->data)
- break;
- }
-
- if (!dev) {
- printk(KERN_ERR "Device doesn't exist.\n");
- return;
- }
-
- __w1_remove_master_device(dev);
-}
-
-EXPORT_SYMBOL(w1_alloc_dev);
-EXPORT_SYMBOL(w1_free_dev);
-EXPORT_SYMBOL(w1_add_master_device);
-EXPORT_SYMBOL(w1_remove_master_device);
-EXPORT_SYMBOL(__w1_remove_master_device);
+++ /dev/null
-/*
- * w1_int.h
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __W1_INT_H
-#define __W1_INT_H
-
-#include <linux/kernel.h>
-#include <linux/device.h>
-
-#include "w1.h"
-
-struct w1_master * w1_alloc_dev(int, struct device_driver *, struct device *);
-void w1_free_dev(struct w1_master *dev);
-int w1_add_master_device(struct w1_bus_master *);
-void w1_remove_master_device(struct w1_bus_master *);
-void __w1_remove_master_device(struct w1_master *);
-
-#endif /* __W1_INT_H */
+++ /dev/null
-/*
- * w1_io.c
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <asm/io.h>
-#include <asm/delay.h>
-
-#include <linux/moduleparam.h>
-
-#include "w1.h"
-#include "w1_log.h"
-#include "w1_io.h"
-
-int w1_delay_parm = 1;
-module_param_named(delay_coef, w1_delay_parm, int, 0);
-
-static u8 w1_crc8_table[] = {
- 0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65,
- 157, 195, 33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220,
- 35, 125, 159, 193, 66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98,
- 190, 224, 2, 92, 223, 129, 99, 61, 124, 34, 192, 158, 29, 67, 161, 255,
- 70, 24, 250, 164, 39, 121, 155, 197, 132, 218, 56, 102, 229, 187, 89, 7,
- 219, 133, 103, 57, 186, 228, 6, 88, 25, 71, 165, 251, 120, 38, 196, 154,
- 101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69, 198, 152, 122, 36,
- 248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5, 231, 185,
- 140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205,
- 17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80,
- 175, 241, 19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238,
- 50, 108, 142, 208, 83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115,
- 202, 148, 118, 40, 171, 245, 23, 73, 8, 86, 180, 234, 105, 55, 213, 139,
- 87, 9, 235, 181, 54, 104, 138, 212, 149, 203, 41, 119, 244, 170, 72, 22,
- 233, 183, 85, 11, 136, 214, 52, 106, 43, 117, 151, 201, 74, 20, 246, 168,
- 116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84, 215, 137, 107, 53
-};
-
-void w1_delay(unsigned long tm)
-{
- udelay(tm * w1_delay_parm);
-}
-
-void w1_write_bit(struct w1_master *dev, int bit)
-{
- if (bit) {
- dev->bus_master->write_bit(dev->bus_master->data, 0);
- w1_delay(6);
- dev->bus_master->write_bit(dev->bus_master->data, 1);
- w1_delay(64);
- } else {
- dev->bus_master->write_bit(dev->bus_master->data, 0);
- w1_delay(60);
- dev->bus_master->write_bit(dev->bus_master->data, 1);
- w1_delay(10);
- }
-}
-
-void w1_write_8(struct w1_master *dev, u8 byte)
-{
- int i;
-
- for (i = 0; i < 8; ++i)
- w1_write_bit(dev, (byte >> i) & 0x1);
-}
-
-u8 w1_read_bit(struct w1_master *dev)
-{
- int result;
-
- dev->bus_master->write_bit(dev->bus_master->data, 0);
- w1_delay(6);
- dev->bus_master->write_bit(dev->bus_master->data, 1);
- w1_delay(9);
-
- result = dev->bus_master->read_bit(dev->bus_master->data);
- w1_delay(55);
-
- return result & 0x1;
-}
-
-u8 w1_read_8(struct w1_master * dev)
-{
- int i;
- u8 res = 0;
-
- for (i = 0; i < 8; ++i)
- res |= (w1_read_bit(dev) << i);
-
- return res;
-}
-
-int w1_reset_bus(struct w1_master *dev)
-{
- int result;
-
- dev->bus_master->write_bit(dev->bus_master->data, 0);
- w1_delay(480);
- dev->bus_master->write_bit(dev->bus_master->data, 1);
- w1_delay(70);
-
- result = dev->bus_master->read_bit(dev->bus_master->data) & 0x1;
- w1_delay(410);
-
- return result;
-}
-
-u8 w1_calc_crc8(u8 * data, int len)
-{
- u8 crc = 0;
-
- while (len--)
- crc = w1_crc8_table[crc ^ *data++];
-
- return crc;
-}
-
-EXPORT_SYMBOL(w1_write_bit);
-EXPORT_SYMBOL(w1_write_8);
-EXPORT_SYMBOL(w1_read_bit);
-EXPORT_SYMBOL(w1_read_8);
-EXPORT_SYMBOL(w1_reset_bus);
-EXPORT_SYMBOL(w1_calc_crc8);
-EXPORT_SYMBOL(w1_delay);
+++ /dev/null
-/*
- * w1_io.h
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __W1_IO_H
-#define __W1_IO_H
-
-#include "w1.h"
-
-void w1_delay(unsigned long);
-void w1_write_bit(struct w1_master *, int);
-void w1_write_8(struct w1_master *, u8);
-u8 w1_read_bit(struct w1_master *);
-u8 w1_read_8(struct w1_master *);
-int w1_reset_bus(struct w1_master *);
-u8 w1_calc_crc8(u8 *, int);
-
-#endif /* __W1_IO_H */
+++ /dev/null
-/*
- * w1_log.h
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __W1_LOG_H
-#define __W1_LOG_H
-
-#define DEBUG
-
-#ifdef W1_DEBUG
-# define assert(expr) do {} while (0)
-#else
-# define assert(expr) \
- if(unlikely(!(expr))) { \
- printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
- #expr,__FILE__,__FUNCTION__,__LINE__); \
- }
-#endif
-
-#endif /* __W1_LOG_H */
-
+++ /dev/null
-/*
- * w1_netlink.c
- *
- * Copyright (c) 2003 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/skbuff.h>
-#include <linux/netlink.h>
-
-#include "w1.h"
-#include "w1_log.h"
-#include "w1_netlink.h"
-
-void w1_netlink_send(struct w1_master *dev, struct w1_netlink_msg *msg)
-{
- unsigned int size;
- struct sk_buff *skb;
- struct w1_netlink_msg *data;
- struct nlmsghdr *nlh;
-
- size = NLMSG_SPACE(sizeof(struct w1_netlink_msg));
-
- skb = alloc_skb(size, GFP_ATOMIC);
- if (!skb) {
- dev_err(&dev->dev, "skb_alloc() failed.\n");
- return;
- }
-
- nlh = NLMSG_PUT(skb, 0, dev->seq++, NLMSG_DONE, size - sizeof(*nlh));
-
- data = (struct w1_netlink_msg *)NLMSG_DATA(nlh);
-
- memcpy(data, msg, sizeof(struct w1_netlink_msg));
-
- NETLINK_CB(skb).dst_groups = dev->groups;
- netlink_broadcast(dev->nls, skb, 0, dev->groups, GFP_ATOMIC);
-
-nlmsg_failure:
- return;
-}
+++ /dev/null
-/*
- * w1_netlink.h
- *
- * Copyright (c) 2003 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __W1_NETLINK_H
-#define __W1_NETLINK_H
-
-#include <asm/types.h>
-
-#include "w1.h"
-
-struct w1_netlink_msg
-{
- union
- {
- struct w1_reg_num id;
- __u64 w1_id;
- } id;
- __u64 val;
-};
-
-#ifdef __KERNEL__
-
-void w1_netlink_send(struct w1_master *, struct w1_netlink_msg *);
-
-#endif /* __KERNEL__ */
-#endif /* __W1_NETLINK_H */
+++ /dev/null
-/*
- * w1_therm.c
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the therms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <asm/types.h>
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/device.h>
-#include <linux/types.h>
-
-#include "w1.h"
-#include "w1_io.h"
-#include "w1_int.h"
-#include "w1_family.h"
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
-MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol, temperature family.");
-
-static ssize_t w1_therm_read_name(struct device *, char *);
-static ssize_t w1_therm_read_temp(struct device *, char *);
-static ssize_t w1_therm_read_bin(struct kobject *, char *, loff_t, size_t);
-
-static struct w1_family_ops w1_therm_fops = {
- .rname = &w1_therm_read_name,
- .rbin = &w1_therm_read_bin,
- .rval = &w1_therm_read_temp,
- .rvalname = "temp1_input",
-};
-
-static ssize_t w1_therm_read_name(struct device *dev, char *buf)
-{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
- return sprintf(buf, "%s\n", sl->name);
-}
-
-static ssize_t w1_therm_read_temp(struct device *dev, char *buf)
-{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
- s16 temp;
-
- /*
- * Must be more precise.
- */
- temp = 0;
- temp <<= sl->rom[1] / 2;
- temp |= sl->rom[0] / 2;
-
- return sprintf(buf, "%d\n", temp * 1000);
-}
-
-static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, size_t count)
-{
- struct w1_slave *sl = container_of(container_of(kobj, struct device, kobj),
- struct w1_slave, dev);
- struct w1_master *dev = sl->master;
- u8 rom[9], crc, verdict;
- size_t icount;
- int i;
- u16 temp;
-
- atomic_inc(&sl->refcnt);
- if (down_interruptible(&sl->master->mutex)) {
- count = 0;
- goto out_dec;
- }
-
- if (off > W1_SLAVE_DATA_SIZE) {
- count = 0;
- goto out;
- }
- if (off + count > W1_SLAVE_DATA_SIZE)
- count = W1_SLAVE_DATA_SIZE - off;
-
- icount = count;
-
- memset(buf, 0, count);
- memset(rom, 0, sizeof(rom));
-
- count = 0;
- verdict = 0;
- crc = 0;
- if (!w1_reset_bus(dev)) {
- u64 id = *(u64 *) & sl->reg_num;
- int count = 0;
-
- w1_write_8(dev, W1_MATCH_ROM);
- for (i = 0; i < 8; ++i)
- w1_write_8(dev, (id >> i * 8) & 0xff);
-
- w1_write_8(dev, W1_CONVERT_TEMP);
-
- while (dev->bus_master->read_bit(dev->bus_master->data) == 0
- && count < 10) {
- w1_delay(1);
- count++;
- }
-
- if (count < 10) {
- if (!w1_reset_bus(dev)) {
- w1_write_8(dev, W1_MATCH_ROM);
- for (i = 0; i < 8; ++i)
- w1_write_8(dev,
- (id >> i * 8) & 0xff);
-
- w1_write_8(dev, W1_READ_SCRATCHPAD);
- for (i = 0; i < 9; ++i)
- rom[i] = w1_read_8(dev);
-
- crc = w1_calc_crc8(rom, 8);
-
- if (rom[8] == crc && rom[0])
- verdict = 1;
- }
- }
- else
- dev_warn(&dev->dev,
- "18S20 doesn't respond to CONVERT_TEMP.\n");
- }
-
- for (i = 0; i < 9; ++i)
- count += snprintf(buf + count, icount - count, "%02x ", rom[i]);
- count += snprintf(buf + count, icount - count, ": crc=%02x %s\n",
- crc, (verdict) ? "YES" : "NO");
- if (verdict)
- memcpy(sl->rom, rom, sizeof(sl->rom));
- for (i = 0; i < 9; ++i)
- count += snprintf(buf + count, icount - count, "%02x ", sl->rom[i]);
- temp = 0;
- temp <<= sl->rom[1] / 2;
- temp |= sl->rom[0] / 2;
- count += snprintf(buf + count, icount - count, "t=%u\n", temp);
-out:
- up(&dev->mutex);
-out_dec:
- atomic_dec(&sl->refcnt);
-
- return count;
-}
-
-static struct w1_family w1_therm_family = {
- .fid = W1_FAMILY_THERM,
- .fops = &w1_therm_fops,
-};
-
-static int __init w1_therm_init(void)
-{
- return w1_register_family(&w1_therm_family);
-}
-
-static void __exit w1_therm_fini(void)
-{
- w1_unregister_family(&w1_therm_family);
-}
-
-module_init(w1_therm_init);
-module_exit(w1_therm_fini);
+++ /dev/null
-#
-# Makefile for the Linux filesystems.
-#
-# 14 Sep 2000, Christoph Hellwig <hch@infradead.org>
-# Rewritten to use lists instead of if-statements.
-#
-
-obj-y := open.o read_write.o file_table.o buffer.o \
- bio.o super.o block_dev.o char_dev.o stat.o exec.o pipe.o \
- namei.o fcntl.o ioctl.o readdir.o select.o fifo.o locks.o \
- dcache.o inode.o attr.o bad_inode.o file.o dnotify.o \
- filesystems.o namespace.o seq_file.o xattr.o libfs.o \
- fs-writeback.o mpage.o direct-io.o aio.o
-
-obj-$(CONFIG_EPOLL) += eventpoll.o
-obj-$(CONFIG_COMPAT) += compat.o
-
-nfsd-$(CONFIG_NFSD) := nfsctl.o
-obj-y += $(nfsd-y) $(nfsd-m)
-
-obj-$(CONFIG_BINFMT_AOUT) += binfmt_aout.o
-obj-$(CONFIG_BINFMT_EM86) += binfmt_em86.o
-obj-$(CONFIG_BINFMT_MISC) += binfmt_misc.o
-
-# binfmt_script is always there
-obj-y += binfmt_script.o
-
-obj-$(CONFIG_BINFMT_ELF) += binfmt_elf.o
-obj-$(CONFIG_BINFMT_SOM) += binfmt_som.o
-obj-$(CONFIG_BINFMT_FLAT) += binfmt_flat.o
-
-obj-$(CONFIG_FS_MBCACHE) += mbcache.o
-obj-$(CONFIG_FS_POSIX_ACL) += posix_acl.o xattr_acl.o
-
-obj-$(CONFIG_QUOTA) += dquot.o
-obj-$(CONFIG_QFMT_V1) += quota_v1.o
-obj-$(CONFIG_QFMT_V2) += quota_v2.o
-obj-$(CONFIG_QUOTACTL) += quota.o
-
-obj-$(CONFIG_PROC_FS) += proc/
-obj-y += partitions/
-obj-$(CONFIG_SYSFS) += sysfs/
-obj-y += devpts/
-
-obj-$(CONFIG_PROFILING) += dcookies.o
-
-# Do not add any filesystems before this line
-obj-$(CONFIG_REISERFS_FS) += reiserfs/
-obj-$(CONFIG_EXT3_FS) += ext3/ # Before ext2 so root fs can be ext3
-obj-$(CONFIG_JBD) += jbd/
-obj-$(CONFIG_EXT2_FS) += ext2/
-obj-$(CONFIG_CRAMFS) += cramfs/
-obj-$(CONFIG_RAMFS) += ramfs/
-obj-$(CONFIG_HUGETLBFS) += hugetlbfs/
-obj-$(CONFIG_CODA_FS) += coda/
-obj-$(CONFIG_INTERMEZZO_FS) += intermezzo/
-obj-$(CONFIG_MINIX_FS) += minix/
-obj-$(CONFIG_FAT_FS) += fat/
-obj-$(CONFIG_UMSDOS_FS) += umsdos/
-obj-$(CONFIG_MSDOS_FS) += msdos/
-obj-$(CONFIG_VFAT_FS) += vfat/
-obj-$(CONFIG_BFS_FS) += bfs/
-obj-$(CONFIG_ISO9660_FS) += isofs/
-obj-$(CONFIG_DEVFS_FS) += devfs/
-obj-$(CONFIG_HFSPLUS_FS) += hfsplus/ # Before hfs to find wrapped HFS+
-obj-$(CONFIG_HFS_FS) += hfs/
-obj-$(CONFIG_VXFS_FS) += freevxfs/
-obj-$(CONFIG_NFS_FS) += nfs/
-obj-$(CONFIG_EXPORTFS) += exportfs/
-obj-$(CONFIG_NFSD) += nfsd/
-obj-$(CONFIG_LOCKD) += lockd/
-obj-$(CONFIG_NLS) += nls/
-obj-$(CONFIG_SYSV_FS) += sysv/
-obj-$(CONFIG_SMB_FS) += smbfs/
-obj-$(CONFIG_CIFS) += cifs/
-obj-$(CONFIG_NCP_FS) += ncpfs/
-obj-$(CONFIG_HPFS_FS) += hpfs/
-obj-$(CONFIG_NTFS_FS) += ntfs/
-obj-$(CONFIG_UFS_FS) += ufs/
-obj-$(CONFIG_EFS_FS) += efs/
-obj-$(CONFIG_JFFS_FS) += jffs/
-obj-$(CONFIG_JFFS2_FS) += jffs2/
-obj-$(CONFIG_AFFS_FS) += affs/
-obj-$(CONFIG_ROMFS_FS) += romfs/
-obj-$(CONFIG_QNX4FS_FS) += qnx4/
-obj-$(CONFIG_AUTOFS_FS) += autofs/
-obj-$(CONFIG_AUTOFS4_FS) += autofs4/
-obj-$(CONFIG_ADFS_FS) += adfs/
-obj-$(CONFIG_UDF_FS) += udf/
-obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/
-obj-$(CONFIG_JFS_FS) += jfs/
-obj-$(CONFIG_XFS_FS) += xfs/
-obj-$(CONFIG_AFS_FS) += afs/
-obj-$(CONFIG_BEFS_FS) += befs/
+++ /dev/null
-/*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- *
- * Ported the filesystem routines to 2.5.
- * 2003-02-10 Petr Baudis <pasky@ucw.cz>
- */
-
-#include <linux/stddef.h>
-#include <linux/fs.h>
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/blkdev.h>
-#include <linux/list.h>
-#include <linux/buffer_head.h>
-#include <linux/root_dev.h>
-#include <linux/statfs.h>
-#include <asm/uaccess.h>
-#include "hostfs.h"
-#include "kern_util.h"
-#include "kern.h"
-#include "user_util.h"
-#include "2_5compat.h"
-#include "init.h"
-
-struct hostfs_inode_info {
- char *host_filename;
- int fd;
- int mode;
- struct inode vfs_inode;
-};
-
-static inline struct hostfs_inode_info *HOSTFS_I(struct inode *inode)
-{
- return(list_entry(inode, struct hostfs_inode_info, vfs_inode));
-}
-
-#define FILE_HOSTFS_I(file) HOSTFS_I((file)->f_dentry->d_inode)
-
-int hostfs_d_delete(struct dentry *dentry)
-{
- return(1);
-}
-
-struct dentry_operations hostfs_dentry_ops = {
- .d_delete = hostfs_d_delete,
-};
-
-/* Changed in hostfs_args before the kernel starts running */
-static char *root_ino = "/";
-static int append = 0;
-
-#define HOSTFS_SUPER_MAGIC 0x00c0ffee
-
-static struct inode_operations hostfs_iops;
-static struct inode_operations hostfs_dir_iops;
-static struct address_space_operations hostfs_link_aops;
-
-static int __init hostfs_args(char *options, int *add)
-{
- char *ptr;
-
- ptr = strchr(options, ',');
- if(ptr != NULL)
- *ptr++ = '\0';
- if(*options != '\0')
- root_ino = options;
-
- options = ptr;
- while(options){
- ptr = strchr(options, ',');
- if(ptr != NULL)
- *ptr++ = '\0';
- if(*options != '\0'){
- if(!strcmp(options, "append"))
- append = 1;
- else printf("hostfs_args - unsupported option - %s\n",
- options);
- }
- options = ptr;
- }
- return(0);
-}
-
-__uml_setup("hostfs=", hostfs_args,
-"hostfs=<root dir>,<flags>,...\n"
-" This is used to set hostfs parameters. The root directory argument\n"
-" is used to confine all hostfs mounts to within the specified directory\n"
-" tree on the host. If this isn't specified, then a user inside UML can\n"
-" mount anything on the host that's accessible to the user that's running\n"
-" it.\n"
-" The only flag currently supported is 'append', which specifies that all\n"
-" files opened by hostfs will be opened in append mode.\n\n"
-);
-
-static char *dentry_name(struct dentry *dentry, int extra)
-{
- struct dentry *parent;
- char *root, *name;
- int len;
-
- len = 0;
- parent = dentry;
- while(parent->d_parent != parent){
- len += parent->d_name.len + 1;
- parent = parent->d_parent;
- }
-
- root = HOSTFS_I(parent->d_inode)->host_filename;
- len += strlen(root);
- name = kmalloc(len + extra + 1, GFP_KERNEL);
- if(name == NULL) return(NULL);
-
- name[len] = '\0';
- parent = dentry;
- while(parent->d_parent != parent){
- len -= parent->d_name.len + 1;
- name[len] = '/';
- strncpy(&name[len + 1], parent->d_name.name,
- parent->d_name.len);
- parent = parent->d_parent;
- }
- strncpy(name, root, strlen(root));
- return(name);
-}
-
-static char *inode_name(struct inode *ino, int extra)
-{
- struct dentry *dentry;
-
- dentry = list_entry(ino->i_dentry.next, struct dentry, d_alias);
- return(dentry_name(dentry, extra));
-}
-
-static int read_name(struct inode *ino, char *name)
-{
- /* The non-int inode fields are copied into ints by stat_file and
- * then copied into the inode because passing the actual pointers
- * in and having them treated as int * breaks on big-endian machines
- */
- int err;
- int i_mode, i_nlink, i_blksize;
- unsigned long long i_size;
- unsigned long long i_ino;
- unsigned long long i_blocks;
-
- err = stat_file(name, &i_ino, &i_mode, &i_nlink, &ino->i_uid,
- &ino->i_gid, &i_size, &ino->i_atime, &ino->i_mtime,
- &ino->i_ctime, &i_blksize, &i_blocks);
- if(err)
- return(err);
-
- ino->i_ino = i_ino;
- ino->i_mode = i_mode;
- ino->i_nlink = i_nlink;
- ino->i_size = i_size;
- ino->i_blksize = i_blksize;
- ino->i_blocks = i_blocks;
- if((ino->i_sb->s_dev == ROOT_DEV) && (ino->i_uid == getuid()))
- ino->i_uid = 0;
- return(0);
-}
-
-static char *follow_link(char *link)
-{
- int len, n;
- char *name, *resolved, *end;
-
- len = 64;
- while(1){
- n = -ENOMEM;
- name = kmalloc(len, GFP_KERNEL);
- if(name == NULL)
- goto out;
-
- n = do_readlink(link, name, len);
- if(n < len)
- break;
- len *= 2;
- kfree(name);
- }
- if(n < 0)
- goto out_free;
-
- if(*name == '/')
- return(name);
-
- end = strrchr(link, '/');
- if(end == NULL)
- return(name);
-
- *(end + 1) = '\0';
- len = strlen(link) + strlen(name) + 1;
-
- resolved = kmalloc(len, GFP_KERNEL);
- if(resolved == NULL){
- n = -ENOMEM;
- goto out_free;
- }
-
- sprintf(resolved, "%s%s", link, name);
- kfree(name);
- kfree(link);
- return(resolved);
-
- out_free:
- kfree(name);
- out:
- return(ERR_PTR(n));
-}
-
-static int read_inode(struct inode *ino)
-{
- char *name;
- int err = 0;
-
- /* Unfortunately, we are called from iget() when we don't have a dentry
- * allocated yet.
- */
- if(list_empty(&ino->i_dentry))
- goto out;
-
- err = -ENOMEM;
- name = inode_name(ino, 0);
- if(name == NULL)
- goto out;
-
- if(file_type(name, NULL) == OS_TYPE_SYMLINK){
- name = follow_link(name);
- if(IS_ERR(name)){
- err = PTR_ERR(name);
- goto out;
- }
- }
-
- err = read_name(ino, name);
- kfree(name);
- out:
- return(err);
-}
-
-int hostfs_statfs(struct super_block *sb, struct kstatfs *sf)
-{
- /* do_statfs uses struct statfs64 internally, but the linux kernel
- * struct statfs still has 32-bit versions for most of these fields,
- * so we convert them here
- */
- int err;
- long long f_blocks;
- long long f_bfree;
- long long f_bavail;
- long long f_files;
- long long f_ffree;
-
- err = do_statfs(HOSTFS_I(sb->s_root->d_inode)->host_filename,
- &sf->f_bsize, &f_blocks, &f_bfree, &f_bavail, &f_files,
- &f_ffree, &sf->f_fsid, sizeof(sf->f_fsid),
- &sf->f_namelen, sf->f_spare);
- if(err) return(err);
- sf->f_blocks = f_blocks;
- sf->f_bfree = f_bfree;
- sf->f_bavail = f_bavail;
- sf->f_files = f_files;
- sf->f_ffree = f_ffree;
- sf->f_type = HOSTFS_SUPER_MAGIC;
- return(0);
-}
-
-static struct inode *hostfs_alloc_inode(struct super_block *sb)
-{
- struct hostfs_inode_info *hi;
-
- hi = kmalloc(sizeof(*hi), GFP_KERNEL);
- if(hi == NULL)
- return(NULL);
-
- *hi = ((struct hostfs_inode_info) { .host_filename = NULL,
- .fd = -1,
- .mode = 0 });
- inode_init_once(&hi->vfs_inode);
- return(&hi->vfs_inode);
-}
-
-static void hostfs_destroy_inode(struct inode *inode)
-{
- if(HOSTFS_I(inode)->host_filename)
- kfree(HOSTFS_I(inode)->host_filename);
-
- if(HOSTFS_I(inode)->fd != -1)
- close_file(&HOSTFS_I(inode)->fd);
-
- kfree(HOSTFS_I(inode));
-}
-
-static void hostfs_read_inode(struct inode *inode)
-{
- read_inode(inode);
-}
-
-static struct super_operations hostfs_sbops = {
- .alloc_inode = hostfs_alloc_inode,
- .destroy_inode = hostfs_destroy_inode,
- .read_inode = hostfs_read_inode,
- .statfs = hostfs_statfs,
-};
-
-int hostfs_readdir(struct file *file, void *ent, filldir_t filldir)
-{
- void *dir;
- char *name;
- unsigned long long next, ino;
- int error, len;
-
- name = dentry_name(file->f_dentry, 0);
- if(name == NULL) return(-ENOMEM);
- dir = open_dir(name, &error);
- kfree(name);
- if(dir == NULL) return(-error);
- next = file->f_pos;
- while((name = read_dir(dir, &next, &ino, &len)) != NULL){
- error = (*filldir)(ent, name, len, file->f_pos,
- ino, DT_UNKNOWN);
- if(error) break;
- file->f_pos = next;
- }
- close_dir(dir);
- return(0);
-}
-
-int hostfs_file_open(struct inode *ino, struct file *file)
-{
- char *name;
- int mode = 0, r = 0, w = 0, fd;
-
- mode = file->f_mode & (FMODE_READ | FMODE_WRITE);
- if((mode & HOSTFS_I(ino)->mode) == mode)
- return(0);
-
- /* The file may already have been opened, but with the wrong access,
- * so this resets things and reopens the file with the new access.
- */
- if(HOSTFS_I(ino)->fd != -1){
- close_file(&HOSTFS_I(ino)->fd);
- HOSTFS_I(ino)->fd = -1;
- }
-
- HOSTFS_I(ino)->mode |= mode;
- if(HOSTFS_I(ino)->mode & FMODE_READ)
- r = 1;
- if(HOSTFS_I(ino)->mode & FMODE_WRITE)
- w = 1;
- if(w)
- r = 1;
-
- name = dentry_name(file->f_dentry, 0);
- if(name == NULL)
- return(-ENOMEM);
-
- fd = open_file(name, r, w, append);
- kfree(name);
- if(fd < 0) return(fd);
- FILE_HOSTFS_I(file)->fd = fd;
-
- return(0);
-}
-
-int hostfs_fsync(struct file *file, struct dentry *dentry, int datasync)
-{
- return(0);
-}
-
-static struct file_operations hostfs_file_fops = {
- .llseek = generic_file_llseek,
- .read = generic_file_read,
- .write = generic_file_write,
- .mmap = generic_file_mmap,
- .open = hostfs_file_open,
- .release = NULL,
- .fsync = hostfs_fsync,
-};
-
-static struct file_operations hostfs_dir_fops = {
- .readdir = hostfs_readdir,
- .read = generic_read_dir,
-};
-
-int hostfs_writepage(struct page *page, struct writeback_control *wbc)
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode = mapping->host;
- char *buffer;
- unsigned long long base;
- int count = PAGE_CACHE_SIZE;
- int end_index = inode->i_size >> PAGE_CACHE_SHIFT;
- int err;
-
- if (page->index >= end_index)
- count = inode->i_size & (PAGE_CACHE_SIZE-1);
-
- buffer = kmap(page);
- base = ((unsigned long long) page->index) << PAGE_CACHE_SHIFT;
-
- err = write_file(HOSTFS_I(inode)->fd, &base, buffer, count);
- if(err != count){
- ClearPageUptodate(page);
- goto out;
- }
-
- if (base > inode->i_size)
- inode->i_size = base;
-
- if (PageError(page))
- ClearPageError(page);
- err = 0;
-
- out:
- kunmap(page);
-
- unlock_page(page);
- return err;
-}
-
-int hostfs_readpage(struct file *file, struct page *page)
-{
- char *buffer;
- long long start;
- int err = 0;
-
- start = (long long) page->index << PAGE_CACHE_SHIFT;
- buffer = kmap(page);
- err = read_file(FILE_HOSTFS_I(file)->fd, &start, buffer,
- PAGE_CACHE_SIZE);
- if(err < 0) goto out;
-
- memset(&buffer[err], 0, PAGE_CACHE_SIZE - err);
-
- flush_dcache_page(page);
- SetPageUptodate(page);
- if (PageError(page)) ClearPageError(page);
- err = 0;
- out:
- kunmap(page);
- unlock_page(page);
- return(err);
-}
-
-int hostfs_prepare_write(struct file *file, struct page *page,
- unsigned int from, unsigned int to)
-{
- char *buffer;
- long long start, tmp;
- int err;
-
- start = (long long) page->index << PAGE_CACHE_SHIFT;
- buffer = kmap(page);
- if(from != 0){
- tmp = start;
- err = read_file(FILE_HOSTFS_I(file)->fd, &tmp, buffer,
- from);
- if(err < 0) goto out;
- }
- if(to != PAGE_CACHE_SIZE){
- start += to;
- err = read_file(FILE_HOSTFS_I(file)->fd, &start, buffer + to,
- PAGE_CACHE_SIZE - to);
- if(err < 0) goto out;
- }
- err = 0;
- out:
- kunmap(page);
- return(err);
-}
-
-int hostfs_commit_write(struct file *file, struct page *page, unsigned from,
- unsigned to)
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode = mapping->host;
- char *buffer;
- long long start;
- int err = 0;
-
- start = (long long) (page->index << PAGE_CACHE_SHIFT) + from;
- buffer = kmap(page);
- err = write_file(FILE_HOSTFS_I(file)->fd, &start, buffer + from,
- to - from);
- if(err > 0) err = 0;
- if(!err && (start > inode->i_size))
- inode->i_size = start;
-
- kunmap(page);
- return(err);
-}
-
-static struct address_space_operations hostfs_aops = {
- .writepage = hostfs_writepage,
- .readpage = hostfs_readpage,
-/* .set_page_dirty = __set_page_dirty_nobuffers, */
- .prepare_write = hostfs_prepare_write,
- .commit_write = hostfs_commit_write
-};
-
-static int init_inode(struct inode *inode, struct dentry *dentry)
-{
- char *name;
- int type, err = -ENOMEM, rdev;
-
- if(dentry){
- name = dentry_name(dentry, 0);
- if(name == NULL)
- goto out;
- type = file_type(name, &rdev);
- kfree(name);
- }
- else type = OS_TYPE_DIR;
-
- err = 0;
- if(type == OS_TYPE_SYMLINK)
- inode->i_op = &page_symlink_inode_operations;
- else if(type == OS_TYPE_DIR)
- inode->i_op = &hostfs_dir_iops;
- else inode->i_op = &hostfs_iops;
-
- if(type == OS_TYPE_DIR) inode->i_fop = &hostfs_dir_fops;
- else inode->i_fop = &hostfs_file_fops;
-
- if(type == OS_TYPE_SYMLINK)
- inode->i_mapping->a_ops = &hostfs_link_aops;
- else inode->i_mapping->a_ops = &hostfs_aops;
-
- switch (type) {
- case OS_TYPE_CHARDEV:
- init_special_inode(inode, S_IFCHR, rdev);
- break;
- case OS_TYPE_BLOCKDEV:
- init_special_inode(inode, S_IFBLK, rdev);
- break;
- case OS_TYPE_FIFO:
- init_special_inode(inode, S_IFIFO, 0);
- break;
- case OS_TYPE_SOCK:
- init_special_inode(inode, S_IFSOCK, 0);
- break;
- }
- out:
- return(err);
-}
-
-int hostfs_create(struct inode *dir, struct dentry *dentry, int mode,
- struct nameidata *nd)
-{
- struct inode *inode;
- char *name;
- int error, fd;
-
- error = -ENOMEM;
- inode = iget(dir->i_sb, 0);
- if(inode == NULL) goto out;
-
- error = init_inode(inode, dentry);
- if(error)
- goto out_put;
-
- error = -ENOMEM;
- name = dentry_name(dentry, 0);
- if(name == NULL)
- goto out_put;
-
- fd = file_create(name,
- mode & S_IRUSR, mode & S_IWUSR, mode & S_IXUSR,
- mode & S_IRGRP, mode & S_IWGRP, mode & S_IXGRP,
- mode & S_IROTH, mode & S_IWOTH, mode & S_IXOTH);
- if(fd < 0)
- error = fd;
- else error = read_name(inode, name);
-
- kfree(name);
- if(error)
- goto out_put;
-
- HOSTFS_I(inode)->fd = fd;
- HOSTFS_I(inode)->mode = FMODE_READ | FMODE_WRITE;
- d_instantiate(dentry, inode);
- return(0);
-
- out_put:
- iput(inode);
- out:
- return(error);
-}
-
-struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
- struct nameidata *nd)
-{
- struct inode *inode;
- char *name;
- int err;
-
- err = -ENOMEM;
- inode = iget(ino->i_sb, 0);
- if(inode == NULL)
- goto out;
-
- err = init_inode(inode, dentry);
- if(err)
- goto out_put;
-
- err = -ENOMEM;
- name = dentry_name(dentry, 0);
- if(name == NULL)
- goto out_put;
-
- err = read_name(inode, name);
- kfree(name);
- if(err == -ENOENT){
- iput(inode);
- inode = NULL;
- }
- else if(err)
- goto out_put;
-
- d_add(dentry, inode);
- dentry->d_op = &hostfs_dentry_ops;
- return(NULL);
-
- out_put:
- iput(inode);
- out:
- return(ERR_PTR(err));
-}
-
-static char *inode_dentry_name(struct inode *ino, struct dentry *dentry)
-{
- char *file;
- int len;
-
- file = inode_name(ino, dentry->d_name.len + 1);
- if(file == NULL) return(NULL);
- strcat(file, "/");
- len = strlen(file);
- strncat(file, dentry->d_name.name, dentry->d_name.len);
- file[len + dentry->d_name.len] = '\0';
- return(file);
-}
-
-int hostfs_link(struct dentry *to, struct inode *ino, struct dentry *from)
-{
- char *from_name, *to_name;
- int err;
-
- if((from_name = inode_dentry_name(ino, from)) == NULL)
- return(-ENOMEM);
- to_name = dentry_name(to, 0);
- if(to_name == NULL){
- kfree(from_name);
- return(-ENOMEM);
- }
- err = link_file(to_name, from_name);
- kfree(from_name);
- kfree(to_name);
- return(err);
-}
-
-int hostfs_unlink(struct inode *ino, struct dentry *dentry)
-{
- char *file;
- int err;
-
- if((file = inode_dentry_name(ino, dentry)) == NULL) return(-ENOMEM);
- if(append)
- return(-EPERM);
-
- err = unlink_file(file);
- kfree(file);
- return(err);
-}
-
-int hostfs_symlink(struct inode *ino, struct dentry *dentry, const char *to)
-{
- char *file;
- int err;
-
- if((file = inode_dentry_name(ino, dentry)) == NULL) return(-ENOMEM);
- err = make_symlink(file, to);
- kfree(file);
- return(err);
-}
-
-int hostfs_mkdir(struct inode *ino, struct dentry *dentry, int mode)
-{
- char *file;
- int err;
-
- if((file = inode_dentry_name(ino, dentry)) == NULL) return(-ENOMEM);
- err = do_mkdir(file, mode);
- kfree(file);
- return(err);
-}
-
-int hostfs_rmdir(struct inode *ino, struct dentry *dentry)
-{
- char *file;
- int err;
-
- if((file = inode_dentry_name(ino, dentry)) == NULL) return(-ENOMEM);
- err = do_rmdir(file);
- kfree(file);
- return(err);
-}
-
-int hostfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
-{
- struct inode *inode;
- char *name;
- int err = -ENOMEM;
-
- inode = iget(dir->i_sb, 0);
- if(inode == NULL)
- goto out;
-
- err = init_inode(inode, dentry);
- if(err)
- goto out_put;
-
- err = -ENOMEM;
- name = dentry_name(dentry, 0);
- if(name == NULL)
- goto out_put;
-
- init_special_inode(inode, mode, dev);
- err = do_mknod(name, mode, dev);
- if(err)
- goto out_free;
-
- err = read_name(inode, name);
- kfree(name);
- if(err)
- goto out_put;
-
- d_instantiate(dentry, inode);
- return(0);
-
- out_free:
- kfree(name);
- out_put:
- iput(inode);
- out:
- return(err);
-}
-
-int hostfs_rename(struct inode *from_ino, struct dentry *from,
- struct inode *to_ino, struct dentry *to)
-{
- char *from_name, *to_name;
- int err;
-
- if((from_name = inode_dentry_name(from_ino, from)) == NULL)
- return(-ENOMEM);
- if((to_name = inode_dentry_name(to_ino, to)) == NULL){
- kfree(from_name);
- return(-ENOMEM);
- }
- err = rename_file(from_name, to_name);
- kfree(from_name);
- kfree(to_name);
- return(err);
-}
-
-void hostfs_truncate(struct inode *ino)
-{
- not_implemented();
-}
-
-int hostfs_permission(struct inode *ino, int desired, struct nameidata *nd)
-{
- char *name;
- int r = 0, w = 0, x = 0, err;
-
- if(desired & MAY_READ) r = 1;
- if(desired & MAY_WRITE) w = 1;
- if(desired & MAY_EXEC) x = 1;
- name = inode_name(ino, 0);
- if(name == NULL) return(-ENOMEM);
- err = access_file(name, r, w, x);
- kfree(name);
- if(!err) err = vfs_permission(ino, desired);
- return(err);
-}
-
-int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
-{
- struct hostfs_iattr attrs;
- char *name;
- int err;
-
- if(append)
- attr->ia_valid &= ~ATTR_SIZE;
-
- attrs.ia_valid = 0;
- if(attr->ia_valid & ATTR_MODE){
- attrs.ia_valid |= HOSTFS_ATTR_MODE;
- attrs.ia_mode = attr->ia_mode;
- }
- if(attr->ia_valid & ATTR_UID){
- if((dentry->d_inode->i_sb->s_dev == ROOT_DEV) &&
- (attr->ia_uid == 0))
- attr->ia_uid = getuid();
- attrs.ia_valid |= HOSTFS_ATTR_UID;
- attrs.ia_uid = attr->ia_uid;
- }
- if(attr->ia_valid & ATTR_GID){
- if((dentry->d_inode->i_sb->s_dev == ROOT_DEV) &&
- (attr->ia_gid == 0))
- attr->ia_gid = getuid();
- attrs.ia_valid |= HOSTFS_ATTR_GID;
- attrs.ia_gid = attr->ia_gid;
- }
- if(attr->ia_valid & ATTR_SIZE){
- attrs.ia_valid |= HOSTFS_ATTR_SIZE;
- attrs.ia_size = attr->ia_size;
- }
- if(attr->ia_valid & ATTR_ATIME){
- attrs.ia_valid |= HOSTFS_ATTR_ATIME;
- attrs.ia_atime = attr->ia_atime;
- }
- if(attr->ia_valid & ATTR_MTIME){
- attrs.ia_valid |= HOSTFS_ATTR_MTIME;
- attrs.ia_mtime = attr->ia_mtime;
- }
- if(attr->ia_valid & ATTR_CTIME){
- attrs.ia_valid |= HOSTFS_ATTR_CTIME;
- attrs.ia_ctime = attr->ia_ctime;
- }
- if(attr->ia_valid & ATTR_ATIME_SET){
- attrs.ia_valid |= HOSTFS_ATTR_ATIME_SET;
- }
- if(attr->ia_valid & ATTR_MTIME_SET){
- attrs.ia_valid |= HOSTFS_ATTR_MTIME_SET;
- }
- name = dentry_name(dentry, 0);
- if(name == NULL) return(-ENOMEM);
- err = set_attr(name, &attrs);
- kfree(name);
- if(err)
- return(err);
-
- return(inode_setattr(dentry->d_inode, attr));
-}
-
-int hostfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
-{
- generic_fillattr(dentry->d_inode, stat);
- return(0);
-}
-
-static struct inode_operations hostfs_iops = {
- .create = hostfs_create,
- .link = hostfs_link,
- .unlink = hostfs_unlink,
- .symlink = hostfs_symlink,
- .mkdir = hostfs_mkdir,
- .rmdir = hostfs_rmdir,
- .mknod = hostfs_mknod,
- .rename = hostfs_rename,
- .truncate = hostfs_truncate,
- .permission = hostfs_permission,
- .setattr = hostfs_setattr,
- .getattr = hostfs_getattr,
-};
-
-static struct inode_operations hostfs_dir_iops = {
- .create = hostfs_create,
- .lookup = hostfs_lookup,
- .link = hostfs_link,
- .unlink = hostfs_unlink,
- .symlink = hostfs_symlink,
- .mkdir = hostfs_mkdir,
- .rmdir = hostfs_rmdir,
- .mknod = hostfs_mknod,
- .rename = hostfs_rename,
- .truncate = hostfs_truncate,
- .permission = hostfs_permission,
- .setattr = hostfs_setattr,
- .getattr = hostfs_getattr,
-};
-
-int hostfs_link_readpage(struct file *file, struct page *page)
-{
- char *buffer, *name;
- long long start;
- int err;
-
- start = page->index << PAGE_CACHE_SHIFT;
- buffer = kmap(page);
- name = inode_name(page->mapping->host, 0);
- if(name == NULL) return(-ENOMEM);
- err = do_readlink(name, buffer, PAGE_CACHE_SIZE);
- kfree(name);
- if(err == PAGE_CACHE_SIZE)
- err = -E2BIG;
- else if(err > 0){
- flush_dcache_page(page);
- SetPageUptodate(page);
- if (PageError(page)) ClearPageError(page);
- err = 0;
- }
- kunmap(page);
- unlock_page(page);
- return(err);
-}
-
-static struct address_space_operations hostfs_link_aops = {
- .readpage = hostfs_link_readpage,
-};
-
-static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
-{
- struct inode *root_inode;
- char *name, *data = d;
- int err;
-
- sb->s_blocksize = 1024;
- sb->s_blocksize_bits = 10;
- sb->s_magic = HOSTFS_SUPER_MAGIC;
- sb->s_op = &hostfs_sbops;
-
- if((data == NULL) || (*data == '\0'))
- data = root_ino;
-
- err = -ENOMEM;
- name = kmalloc(strlen(data) + 1, GFP_KERNEL);
- if(name == NULL)
- goto out;
-
- strcpy(name, data);
-
- root_inode = iget(sb, 0);
- if(root_inode == NULL)
- goto out_free;
-
- err = init_inode(root_inode, NULL);
- if(err)
- goto out_put;
-
- HOSTFS_I(root_inode)->host_filename = name;
-
- err = -ENOMEM;
- sb->s_root = d_alloc_root(root_inode);
- if(sb->s_root == NULL)
- goto out_put;
-
- err = read_inode(root_inode);
- if(err)
- goto out_put;
-
- return(0);
-
- out_put:
- iput(root_inode);
- out_free:
- kfree(name);
- out:
- return(err);
-}
-
-static struct super_block *hostfs_read_sb(struct file_system_type *type,
- int flags, const char *dev_name,
- void *data)
-{
- return(get_sb_nodev(type, flags, data, hostfs_fill_sb_common));
-}
-
-static struct file_system_type hostfs_type = {
- .owner = THIS_MODULE,
- .name = "hostfs",
- .get_sb = hostfs_read_sb,
- .kill_sb = kill_anon_super,
- .fs_flags = 0,
-};
-
-static int __init init_hostfs(void)
-{
- return(register_filesystem(&hostfs_type));
-}
-
-static void __exit exit_hostfs(void)
-{
- unregister_filesystem(&hostfs_type);
-}
-
-module_init(init_hostfs)
-module_exit(exit_hostfs)
-MODULE_LICENSE("GPL");
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-/*
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <errno.h>
-#include <utime.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/vfs.h>
-#include "hostfs.h"
-#include "kern_util.h"
-#include "user.h"
-
-int stat_file(const char *path, unsigned long long *inode_out, int *mode_out,
- int *nlink_out, int *uid_out, int *gid_out,
- unsigned long long *size_out, struct timespec *atime_out,
- struct timespec *mtime_out, struct timespec *ctime_out,
- int *blksize_out, unsigned long long *blocks_out)
-{
- struct stat64 buf;
-
- if(lstat64(path, &buf) < 0)
- return(-errno);
-
- /* See the Makefile for why STAT64_INO_FIELD is passed in
- * by the build
- */
- if(inode_out != NULL) *inode_out = buf.STAT64_INO_FIELD;
- if(mode_out != NULL) *mode_out = buf.st_mode;
- if(nlink_out != NULL) *nlink_out = buf.st_nlink;
- if(uid_out != NULL) *uid_out = buf.st_uid;
- if(gid_out != NULL) *gid_out = buf.st_gid;
- if(size_out != NULL) *size_out = buf.st_size;
- if(atime_out != NULL) {
- atime_out->tv_sec = buf.st_atime;
- atime_out->tv_nsec = 0;
- }
- if(mtime_out != NULL) {
- mtime_out->tv_sec = buf.st_mtime;
- mtime_out->tv_nsec = 0;
- }
- if(ctime_out != NULL) {
- ctime_out->tv_sec = buf.st_ctime;
- ctime_out->tv_nsec = 0;
- }
- if(blksize_out != NULL) *blksize_out = buf.st_blksize;
- if(blocks_out != NULL) *blocks_out = buf.st_blocks;
- return(0);
-}
-
-int file_type(const char *path, int *rdev)
-{
- struct stat64 buf;
-
- if(lstat64(path, &buf) < 0)
- return(-errno);
- if(rdev != NULL)
- *rdev = buf.st_rdev;
-
- if(S_ISDIR(buf.st_mode)) return(OS_TYPE_DIR);
- else if(S_ISLNK(buf.st_mode)) return(OS_TYPE_SYMLINK);
- else if(S_ISCHR(buf.st_mode)) return(OS_TYPE_CHARDEV);
- else if(S_ISBLK(buf.st_mode)) return(OS_TYPE_BLOCKDEV);
- else if(S_ISFIFO(buf.st_mode))return(OS_TYPE_FIFO);
- else if(S_ISSOCK(buf.st_mode))return(OS_TYPE_SOCK);
- else return(OS_TYPE_FILE);
-}
-
-int access_file(char *path, int r, int w, int x)
-{
- int mode = 0;
-
- if(r) mode = R_OK;
- if(w) mode |= W_OK;
- if(x) mode |= X_OK;
- if(access(path, mode) != 0) return(-errno);
- else return(0);
-}
-
-int open_file(char *path, int r, int w, int append)
-{
- int mode = 0, fd;
-
- if(r && !w)
- mode = O_RDONLY;
- else if(!r && w)
- mode = O_WRONLY;
- else if(r && w)
- mode = O_RDWR;
- else panic("Impossible mode in open_file");
-
- if(append)
- mode |= O_APPEND;
- fd = open64(path, mode);
- if(fd < 0) return(-errno);
- else return(fd);
-}
-
-void *open_dir(char *path, int *err_out)
-{
- DIR *dir;
-
- dir = opendir(path);
- *err_out = errno;
- if(dir == NULL) return(NULL);
- return(dir);
-}
-
-char *read_dir(void *stream, unsigned long long *pos,
- unsigned long long *ino_out, int *len_out)
-{
- DIR *dir = stream;
- struct dirent *ent;
-
- seekdir(dir, *pos);
- ent = readdir(dir);
- if(ent == NULL) return(NULL);
- *len_out = strlen(ent->d_name);
- *ino_out = ent->d_ino;
- *pos = telldir(dir);
- return(ent->d_name);
-}
-
-int read_file(int fd, unsigned long long *offset, char *buf, int len)
-{
- int n;
-
- n = pread64(fd, buf, len, *offset);
- if(n < 0) return(-errno);
- *offset += n;
- return(n);
-}
-
-int write_file(int fd, unsigned long long *offset, const char *buf, int len)
-{
- int n;
-
- n = pwrite64(fd, buf, len, *offset);
- if(n < 0) return(-errno);
- *offset += n;
- return(n);
-}
-
-int lseek_file(int fd, long long offset, int whence)
-{
- int ret;
-
- ret = lseek64(fd, offset, whence);
- if(ret < 0) return(-errno);
- return(0);
-}
-
-void close_file(void *stream)
-{
- close(*((int *) stream));
-}
-
-void close_dir(void *stream)
-{
- closedir(stream);
-}
-
-int file_create(char *name, int ur, int uw, int ux, int gr,
- int gw, int gx, int or, int ow, int ox)
-{
- int mode, fd;
-
- mode = 0;
- mode |= ur ? S_IRUSR : 0;
- mode |= uw ? S_IWUSR : 0;
- mode |= ux ? S_IXUSR : 0;
- mode |= gr ? S_IRGRP : 0;
- mode |= gw ? S_IWGRP : 0;
- mode |= gx ? S_IXGRP : 0;
- mode |= or ? S_IROTH : 0;
- mode |= ow ? S_IWOTH : 0;
- mode |= ox ? S_IXOTH : 0;
- fd = open64(name, O_CREAT | O_RDWR, mode);
- if(fd < 0)
- return(-errno);
- return(fd);
-}
-
-int set_attr(const char *file, struct hostfs_iattr *attrs)
-{
- struct utimbuf buf;
- int err, ma;
-
- if(attrs->ia_valid & HOSTFS_ATTR_MODE){
- if(chmod(file, attrs->ia_mode) != 0) return(-errno);
- }
- if(attrs->ia_valid & HOSTFS_ATTR_UID){
- if(chown(file, attrs->ia_uid, -1)) return(-errno);
- }
- if(attrs->ia_valid & HOSTFS_ATTR_GID){
- if(chown(file, -1, attrs->ia_gid)) return(-errno);
- }
- if(attrs->ia_valid & HOSTFS_ATTR_SIZE){
- if(truncate(file, attrs->ia_size)) return(-errno);
- }
- ma = HOSTFS_ATTR_ATIME_SET | HOSTFS_ATTR_MTIME_SET;
- if((attrs->ia_valid & ma) == ma){
- buf.actime = attrs->ia_atime.tv_sec;
- buf.modtime = attrs->ia_mtime.tv_sec;
- if(utime(file, &buf) != 0) return(-errno);
- }
- else {
- struct timespec ts;
-
- if(attrs->ia_valid & HOSTFS_ATTR_ATIME_SET){
- err = stat_file(file, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, &ts, NULL, NULL, NULL);
- if(err != 0)
- return(err);
- buf.actime = attrs->ia_atime.tv_sec;
- buf.modtime = ts.tv_sec;
- if(utime(file, &buf) != 0)
- return(-errno);
- }
- if(attrs->ia_valid & HOSTFS_ATTR_MTIME_SET){
- err = stat_file(file, NULL, NULL, NULL, NULL, NULL,
- NULL, &ts, NULL, NULL, NULL, NULL);
- if(err != 0)
- return(err);
- buf.actime = ts.tv_sec;
- buf.modtime = attrs->ia_mtime.tv_sec;
- if(utime(file, &buf) != 0)
- return(-errno);
- }
- }
- if(attrs->ia_valid & HOSTFS_ATTR_CTIME) ;
- if(attrs->ia_valid & (HOSTFS_ATTR_ATIME | HOSTFS_ATTR_MTIME)){
- err = stat_file(file, NULL, NULL, NULL, NULL, NULL, NULL,
- &attrs->ia_atime, &attrs->ia_mtime, NULL,
- NULL, NULL);
- if(err != 0) return(err);
- }
- return(0);
-}
-
-int make_symlink(const char *from, const char *to)
-{
- int err;
-
- err = symlink(to, from);
- if(err) return(-errno);
- return(0);
-}
-
-int unlink_file(const char *file)
-{
- int err;
-
- err = unlink(file);
- if(err) return(-errno);
- return(0);
-}
-
-int do_mkdir(const char *file, int mode)
-{
- int err;
-
- err = mkdir(file, mode);
- if(err) return(-errno);
- return(0);
-}
-
-int do_rmdir(const char *file)
-{
- int err;
-
- err = rmdir(file);
- if(err) return(-errno);
- return(0);
-}
-
-int do_mknod(const char *file, int mode, int dev)
-{
- int err;
-
- err = mknod(file, mode, dev);
- if(err) return(-errno);
- return(0);
-}
-
-int link_file(const char *to, const char *from)
-{
- int err;
-
- err = link(to, from);
- if(err) return(-errno);
- return(0);
-}
-
-int do_readlink(char *file, char *buf, int size)
-{
- int n;
-
- n = readlink(file, buf, size);
- if(n < 0)
- return(-errno);
- if(n < size)
- buf[n] = '\0';
- return(n);
-}
-
-int rename_file(char *from, char *to)
-{
- int err;
-
- err = rename(from, to);
- if(err < 0) return(-errno);
- return(0);
-}
-
-int do_statfs(char *root, long *bsize_out, long long *blocks_out,
- long long *bfree_out, long long *bavail_out,
- long long *files_out, long long *ffree_out,
- void *fsid_out, int fsid_size, long *namelen_out,
- long *spare_out)
-{
- struct statfs64 buf;
- int err;
-
- err = statfs64(root, &buf);
- if(err < 0) return(-errno);
- *bsize_out = buf.f_bsize;
- *blocks_out = buf.f_blocks;
- *bfree_out = buf.f_bfree;
- *bavail_out = buf.f_bavail;
- *files_out = buf.f_files;
- *ffree_out = buf.f_ffree;
- memcpy(fsid_out, &buf.f_fsid,
- sizeof(buf.f_fsid) > fsid_size ? fsid_size :
- sizeof(buf.f_fsid));
- *namelen_out = buf.f_namelen;
- spare_out[0] = buf.f_spare[0];
- spare_out[1] = buf.f_spare[1];
- spare_out[2] = buf.f_spare[2];
- spare_out[3] = buf.f_spare[3];
- spare_out[4] = buf.f_spare[4];
- spare_out[5] = buf.f_spare[5];
- return(0);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-#
-# Makefile 1.00 Peter Braam <braam@clusterfs.com>
-#
-
-obj-$(CONFIG_INTERMEZZO_FS) += intermezzo.o
-
-intermezzo-objs := cache.o dcache.o dir.o ext_attr.o file.o fileset.o \
- inode.o journal.o journal_ext2.o journal_ext3.o \
- journal_obdfs.o journal_reiserfs.o journal_tmpfs.o journal_xfs.o \
- kml_reint.o kml_unpack.o methods.o presto.o psdev.o replicator.o \
- super.o sysctl.o upcall.o vfs.o
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2000 Stelias Computing, Inc.
- * Copyright (C) 2000 Red Hat, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/ext2_fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-/*
- This file contains the routines associated with managing a
- cache of files for InterMezzo. These caches have two reqs:
- - need to be found fast so they are hashed by the device,
- with an attempt to have collision chains of length 1.
- The methods for the cache are set up in methods.
-*/
-
-extern kmem_cache_t * presto_dentry_slab;
-
-/* the intent of this hash is to have collision chains of length 1 */
-#define CACHES_BITS 8
-#define CACHES_SIZE (1 << CACHES_BITS)
-#define CACHES_MASK CACHES_SIZE - 1
-static struct list_head presto_caches[CACHES_SIZE];
-
-static inline int presto_cache_hash(struct super_block *s)
-{
- return (CACHES_MASK) & ((unsigned long)s >> L1_CACHE_SHIFT);
-}
-
-inline void presto_cache_add(struct presto_cache *cache)
-{
- list_add(&cache->cache_chain,
- &presto_caches[presto_cache_hash(cache->cache_sb)]);
-}
-
-inline void presto_cache_init_hash(void)
-{
- int i;
- for ( i = 0; i < CACHES_SIZE; i++ ) {
- INIT_LIST_HEAD(&presto_caches[i]);
- }
-}
-
-int izo_ioctl_packlen(struct izo_ioctl_data *data)
-{
- int len = sizeof(struct izo_ioctl_data);
- len += size_round(data->ioc_inllen1);
- len += size_round(data->ioc_inllen2);
- return len;
-}
-
-/* map a device to a cache */
-struct presto_cache *presto_cache_find(struct super_block *s)
-{
- struct presto_cache *cache;
- struct list_head *lh, *tmp;
-
- lh = tmp = &(presto_caches[presto_cache_hash(s)]);
- while ( (tmp = lh->next) != lh ) {
- cache = list_entry(tmp, struct presto_cache, cache_chain);
- if (cache->cache_sb == s)
- return cache;
- }
- return NULL;
-}
-
-
-/* map an inode to a cache */
-struct presto_cache *presto_get_cache(struct inode *inode)
-{
- struct presto_cache *cache;
- ENTRY;
- /* find the correct presto_cache here, based on the device */
- cache = presto_cache_find(inode->i_sb);
- if ( !cache ) {
- CERROR("WARNING: no presto cache for %s, ino %ld\n",
- inode->i_sb->s_id, inode->i_ino);
- EXIT;
- return NULL;
- }
- EXIT;
- return cache;
-}
-
-/* another debugging routine: check fs is InterMezzo fs */
-int presto_ispresto(struct inode *inode)
-{
- struct presto_cache *cache;
-
- if ( !inode )
- return 0;
- cache = presto_get_cache(inode);
- if ( !cache )
- return 0;
- return inode->i_sb == cache->cache_sb;
-}
-
-/* setup a cache structure when we need one */
-struct presto_cache *presto_cache_init(void)
-{
- struct presto_cache *cache;
-
- PRESTO_ALLOC(cache, sizeof(struct presto_cache));
- if ( cache ) {
- memset(cache, 0, sizeof(struct presto_cache));
- INIT_LIST_HEAD(&cache->cache_chain);
- INIT_LIST_HEAD(&cache->cache_fset_list);
- cache->cache_lock = SPIN_LOCK_UNLOCKED;
- cache->cache_reserved = 0;
- }
- return cache;
-}
-
-/* free a cache structure and all of the memory it is pointing to */
-inline void presto_free_cache(struct presto_cache *cache)
-{
- if (!cache)
- return;
-
- list_del(&cache->cache_chain);
- if (cache->cache_sb && cache->cache_sb->s_root &&
- presto_d2d(cache->cache_sb->s_root)) {
- kmem_cache_free(presto_dentry_slab,
- presto_d2d(cache->cache_sb->s_root));
- cache->cache_sb->s_root->d_fsdata = NULL;
- }
-
- PRESTO_FREE(cache, sizeof(struct presto_cache));
-}
-
-int presto_reserve_space(struct presto_cache *cache, loff_t req)
-{
- struct filter_fs *filter;
- loff_t avail;
- struct super_block *sb = cache->cache_sb;
- filter = cache->cache_filter;
- if (!filter ) {
- EXIT;
- return 0;
- }
- if (!filter->o_trops ) {
- EXIT;
- return 0;
- }
- if (!filter->o_trops->tr_avail ) {
- EXIT;
- return 0;
- }
-
- spin_lock(&cache->cache_lock);
- avail = filter->o_trops->tr_avail(cache, sb);
- CDEBUG(D_SUPER, "ESC::%ld +++> %ld \n", (long) cache->cache_reserved,
- (long) (cache->cache_reserved + req));
- CDEBUG(D_SUPER, "ESC::Avail::%ld \n", (long) avail);
- if (req + cache->cache_reserved > avail) {
- spin_unlock(&cache->cache_lock);
- EXIT;
- return -ENOSPC;
- }
- cache->cache_reserved += req;
- spin_unlock(&cache->cache_lock);
-
- EXIT;
- return 0;
-}
-
-void presto_release_space(struct presto_cache *cache, loff_t req)
-{
- CDEBUG(D_SUPER, "ESC::%ld ---> %ld \n", (long) cache->cache_reserved,
- (long) (cache->cache_reserved - req));
- spin_lock(&cache->cache_lock);
- cache->cache_reserved -= req;
- spin_unlock(&cache->cache_lock);
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Original version: Copyright (C) 1996 P. Braam and M. Callahan
- * Rewritten for Linux 2.1. Copyright (C) 1997 Carnegie Mellon University
- * d_fsdata and NFS compatiblity fixes Copyright (C) 2001 Tacit Networks, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Directory operations for InterMezzo filesystem
- */
-
-/* inode dentry alias list walking code adapted from linux/fs/dcache.c
- *
- * fs/dcache.c
- *
- * (C) 1997 Thomas Schoebel-Theuer,
- * with heavy changes by Linus Torvalds
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-#include <linux/vmalloc.h>
-
-#include "intermezzo_fs.h"
-
-kmem_cache_t * presto_dentry_slab;
-
-/* called when a cache lookup succeeds */
-static int presto_d_revalidate(struct dentry *de, struct nameidata *nd)
-{
- struct inode *inode = de->d_inode;
- struct presto_file_set * root_fset;
-
- ENTRY;
- if (!inode) {
- EXIT;
- return 0;
- }
-
- if (is_bad_inode(inode)) {
- EXIT;
- return 0;
- }
-
- if (!presto_d2d(de)) {
- presto_set_dd(de);
- }
-
- if (!presto_d2d(de)) {
- EXIT;
- return 0;
- }
-
- root_fset = presto_d2d(de->d_inode->i_sb->s_root)->dd_fset;
- if (root_fset->fset_flags & FSET_FLAT_BRANCH &&
- (presto_d2d(de)->dd_fset != root_fset )) {
- presto_d2d(de)->dd_fset = root_fset;
- }
-
- EXIT;
- return 1;
-
-#if 0
- /* The following is needed for metadata on demand. */
- if ( S_ISDIR(inode->i_mode) ) {
- EXIT;
- return (presto_chk(de, PRESTO_DATA) &&
- (presto_chk(de, PRESTO_ATTR)));
- } else {
- EXIT;
- return presto_chk(de, PRESTO_ATTR);
- }
-#endif
-}
-
-static void presto_d_release(struct dentry *dentry)
-{
- if (!presto_d2d(dentry)) {
- /* This can happen for dentries from NFSd */
- return;
- }
- presto_d2d(dentry)->dd_count--;
-
- if (!presto_d2d(dentry)->dd_count) {
- kmem_cache_free(presto_dentry_slab, presto_d2d(dentry));
- dentry->d_fsdata = NULL;
- }
-}
-
-struct dentry_operations presto_dentry_ops =
-{
- .d_revalidate = presto_d_revalidate,
- .d_release = presto_d_release
-};
-
-static inline int presto_is_dentry_ROOT (struct dentry *dentry)
-{
- return(dentry_name_cmp(dentry,"ROOT") &&
- !dentry_name_cmp(dentry->d_parent,".intermezzo"));
-}
-
-static struct presto_file_set* presto_try_find_fset(struct dentry* dentry,
- int *is_under_d_intermezzo)
-{
- struct dentry* temp_dentry;
- struct presto_dentry_data *d_data;
- int found_root=0;
-
- ENTRY;
- CDEBUG(D_FSDATA, "finding fileset for %p:%s\n", dentry,
- dentry->d_name.name);
-
- *is_under_d_intermezzo = 0;
-
- /* walk up through the branch to get the fileset */
- /* The dentry we are passed presumably does not have the correct
- * fset information. However, we still want to start walking up
- * the branch from this dentry to get our found_root and
- * is_under_d_intermezzo decisions correct
- */
- for (temp_dentry = dentry ; ; temp_dentry = temp_dentry->d_parent) {
- CDEBUG(D_FSDATA, "--->dentry %p:%*s\n", temp_dentry,
- temp_dentry->d_name.len,temp_dentry->d_name.name);
- if (presto_is_dentry_ROOT(temp_dentry))
- found_root = 1;
- if (!found_root &&
- dentry_name_cmp(temp_dentry, ".intermezzo")) {
- *is_under_d_intermezzo = 1;
- }
- d_data = presto_d2d(temp_dentry);
- if (d_data) {
- /* If we found a "ROOT" dentry while walking up the
- * branch, we will journal regardless of whether
- * we are under .intermezzo or not.
- * If we are already under d_intermezzo don't reverse
- * the decision here...even if we found a "ROOT"
- * dentry above .intermezzo (if we were ever to
- * modify the directory structure).
- */
- if (!*is_under_d_intermezzo)
- *is_under_d_intermezzo = !found_root &&
- (d_data->dd_flags & PRESTO_DONT_JOURNAL);
- EXIT;
- return d_data->dd_fset;
- }
- if (temp_dentry->d_parent == temp_dentry) {
- break;
- }
- }
- EXIT;
- return NULL;
-}
-
-/* Only call this function on positive dentries */
-static struct presto_dentry_data* presto_try_find_alias_with_dd (
- struct dentry* dentry)
-{
- struct inode *inode=dentry->d_inode;
- struct list_head *head, *next, *tmp;
- struct dentry *tmp_dentry;
-
- /* Search through the alias list for dentries with d_fsdata */
- spin_lock(&dcache_lock);
- head = &inode->i_dentry;
- next = inode->i_dentry.next;
- while (next != head) {
- tmp = next;
- next = tmp->next;
- tmp_dentry = list_entry(tmp, struct dentry, d_alias);
- if (!presto_d2d(tmp_dentry)) {
- spin_unlock(&dcache_lock);
- return presto_d2d(tmp_dentry);
- }
- }
- spin_unlock(&dcache_lock);
- return NULL;
-}
-
-/* Only call this function on positive dentries */
-static void presto_set_alias_dd (struct dentry *dentry,
- struct presto_dentry_data* dd)
-{
- struct inode *inode=dentry->d_inode;
- struct list_head *head, *next, *tmp;
- struct dentry *tmp_dentry;
-
- /* Set d_fsdata for this dentry */
- dd->dd_count++;
- dentry->d_fsdata = dd;
-
- /* Now set d_fsdata for all dentries in the alias list. */
- spin_lock(&dcache_lock);
- head = &inode->i_dentry;
- next = inode->i_dentry.next;
- while (next != head) {
- tmp = next;
- next = tmp->next;
- tmp_dentry = list_entry(tmp, struct dentry, d_alias);
- if (!presto_d2d(tmp_dentry)) {
- dd->dd_count++;
- tmp_dentry->d_fsdata = dd;
- }
- }
- spin_unlock(&dcache_lock);
- return;
-}
-
-inline struct presto_dentry_data *izo_alloc_ddata(void)
-{
- struct presto_dentry_data *dd;
-
- dd = kmem_cache_alloc(presto_dentry_slab, SLAB_KERNEL);
- if (dd == NULL) {
- CERROR("IZO: out of memory trying to allocate presto_dentry_data\n");
- return NULL;
- }
- memset(dd, 0, sizeof(*dd));
- dd->dd_count = 1;
-
- return dd;
-}
-
-/* This uses the BKL! */
-int presto_set_dd(struct dentry * dentry)
-{
- struct presto_file_set *fset;
- struct presto_dentry_data *dd;
- int is_under_d_izo;
- int error=0;
-
- ENTRY;
-
- if (!dentry)
- BUG();
-
- lock_kernel();
-
- /* Did we lose a race? */
- if (dentry->d_fsdata) {
- CERROR("dentry %p already has d_fsdata set\n", dentry);
- if (dentry->d_inode)
- CERROR(" inode: %ld\n", dentry->d_inode->i_ino);
- EXIT;
- goto out_unlock;
- }
-
- if (dentry->d_inode != NULL) {
- /* NFSd runs find_fh_dentry which instantiates disconnected
- * dentries which are then connected without a lookup().
- * So it is possible to have connected dentries that do not
- * have d_fsdata set. So we walk the list trying to find
- * an alias which has its d_fsdata set and then use that
- * for all the other dentries as well.
- * - SHP,Vinny.
- */
-
- /* If there is an alias with d_fsdata use it. */
- if ((dd = presto_try_find_alias_with_dd (dentry))) {
- presto_set_alias_dd (dentry, dd);
- EXIT;
- goto out_unlock;
- }
- } else {
- /* Negative dentry */
- CDEBUG(D_FSDATA,"negative dentry %p: %*s\n", dentry,
- dentry->d_name.len, dentry->d_name.name);
- }
-
- /* No pre-existing d_fsdata, we need to construct one.
- * First, we must walk up the tree to find the fileset
- * If a fileset can't be found, we leave a null fsdata
- * and return EROFS to indicate that we can't journal
- * updates.
- */
- fset = presto_try_find_fset (dentry, &is_under_d_izo);
- if (!fset) {
-#ifdef PRESTO_NO_NFS
- CERROR("No fileset for dentry %p: %*s\n", dentry,
- dentry->d_name.len, dentry->d_name.name);
-#endif
- error = -EROFS;
- EXIT;
- goto out_unlock;
- }
-
- dentry->d_fsdata = izo_alloc_ddata();
- if (!presto_d2d(dentry)) {
- CERROR ("InterMezzo: out of memory allocating d_fsdata\n");
- error = -ENOMEM;
- goto out_unlock;
- }
- presto_d2d(dentry)->dd_fset = fset;
- if (is_under_d_izo)
- presto_d2d(dentry)->dd_flags |= PRESTO_DONT_JOURNAL;
- EXIT;
-
-out_unlock:
- CDEBUG(D_FSDATA,"presto_set_dd dentry %p: %*s, d_fsdata %p\n",
- dentry, dentry->d_name.len, dentry->d_name.name,
- dentry->d_fsdata);
- unlock_kernel();
- return error;
-}
-
-int presto_init_ddata_cache(void)
-{
- ENTRY;
- presto_dentry_slab =
- kmem_cache_create("presto_cache",
- sizeof(struct presto_dentry_data), 0,
- SLAB_HWCACHE_ALIGN, NULL,
- NULL);
- EXIT;
- return (presto_dentry_slab != NULL);
-}
-
-void presto_cleanup_ddata_cache(void)
-{
- kmem_cache_destroy(presto_dentry_slab);
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2000 Stelias Computing, Inc.
- * Copyright (C) 2000 Red Hat, Inc.
- * Copyright (C) 2000 Tacitus Systems
- * Copyright (C) 2000 Peter J. Braam
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <asm/bitops.h>
-#include <asm/termios.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/namei.h>
-#include <linux/ext2_fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-static inline void presto_relock_sem(struct inode *dir)
-{
- /* the lock from sys_mkdir / lookup_create */
- down(&dir->i_sem);
- /* the rest is done by the do_{create,mkdir, ...} */
-}
-
-static inline void presto_relock_other(struct inode *dir)
-{
- /* vfs_mkdir locks */
- // down(&dir->i_zombie);
- //lock_kernel();
-}
-
-static inline void presto_fulllock(struct inode *dir)
-{
- /* the lock from sys_mkdir / lookup_create */
- down(&dir->i_sem);
- /* vfs_mkdir locks */
- // down(&dir->i_zombie);
- //lock_kernel();
-}
-
-static inline void presto_unlock(struct inode *dir)
-{
- /* vfs_mkdir locks */
- //unlock_kernel();
- // up(&dir->i_zombie);
- /* the lock from sys_mkdir / lookup_create */
- up(&dir->i_sem);
-}
-
-
-/*
- * these are initialized in super.c
- */
-extern int presto_permission(struct inode *inode, int mask, struct nameidata *nd);
-static int izo_authorized_uid;
-
-int izo_dentry_is_ilookup(struct dentry *dentry, ino_t *id,
- unsigned int *generation)
-{
- char tmpname[64];
- char *next;
-
- ENTRY;
- /* prefix is 7 characters: '...ino:' */
- if ( dentry->d_name.len < 7 || dentry->d_name.len > 64 ||
- memcmp(dentry->d_name.name, PRESTO_ILOOKUP_MAGIC, 7) != 0 ) {
- EXIT;
- return 0;
- }
-
- memcpy(tmpname, dentry->d_name.name + 7, dentry->d_name.len - 7);
- *(tmpname + dentry->d_name.len - 7) = '\0';
-
- /* name is of the form ...ino:<inode number>:<generation> */
- *id = simple_strtoul(tmpname, &next, 16);
- if ( *next == PRESTO_ILOOKUP_SEP ) {
- *generation = simple_strtoul(next + 1, 0, 16);
- CDEBUG(D_INODE, "ino string: %s, Id = %lx (%lu), "
- "generation %x (%d)\n",
- tmpname, *id, *id, *generation, *generation);
- EXIT;
- return 1;
- } else {
- EXIT;
- return 0;
- }
-}
-
-struct dentry *presto_tmpfs_ilookup(struct inode *dir,
- struct dentry *dentry,
- ino_t ino,
- unsigned int generation)
-{
- return dentry;
-}
-
-
-inline int presto_can_ilookup(void)
-{
- return (current->euid == izo_authorized_uid ||
- capable(CAP_DAC_READ_SEARCH));
-}
-
-struct dentry *presto_iget_ilookup(struct inode *dir,
- struct dentry *dentry,
- ino_t ino,
- unsigned int generation)
-{
- struct inode *inode;
- int error;
-
- ENTRY;
-
- if ( !presto_can_ilookup() ) {
- CERROR("ilookup denied: euid %u, authorized_uid %u\n",
- current->euid, izo_authorized_uid);
- return ERR_PTR(-EPERM);
- }
- error = -ENOENT;
- inode = iget(dir->i_sb, ino);
- if (!inode) {
- CERROR("fatal: NULL inode ino %lu\n", ino);
- goto cleanup_iput;
- }
- if (is_bad_inode(inode) || inode->i_nlink == 0) {
- CERROR("fatal: bad inode ino %lu, links %d\n", ino, inode->i_nlink);
- goto cleanup_iput;
- }
- if (inode->i_generation != generation) {
- CERROR("fatal: bad generation %u (want %u)\n",
- inode->i_generation, generation);
- goto cleanup_iput;
- }
-
- d_instantiate(dentry, inode);
- dentry->d_flags |= DCACHE_DISCONNECTED; /* NFS hack */
-
- EXIT;
- return NULL;
-
-cleanup_iput:
- if (inode)
- iput(inode);
- return ERR_PTR(error);
-}
-
-struct dentry *presto_add_ilookup_dentry(struct dentry *parent,
- struct dentry *real)
-{
- struct inode *inode = real->d_inode;
- struct dentry *de;
- char buf[32];
- char *ptr = buf;
- struct dentry *inodir;
- struct presto_dentry_data *dd;
-
- inodir = lookup_one_len("..iopen..", parent, strlen("..iopen.."));
- if (!inodir || IS_ERR(inodir) || !inodir->d_inode ) {
- CERROR("%s: bad ..iopen.. lookup\n", __FUNCTION__);
- return NULL;
- }
- inodir->d_inode->i_op = &presto_dir_iops;
-
- snprintf(ptr, 32, "...ino:%lx:%x", inode->i_ino, inode->i_generation);
-
- de = lookup_one_len(ptr, inodir, strlen(ptr));
- if (!de || IS_ERR(de)) {
- CERROR("%s: bad ...ino lookup %ld\n",
- __FUNCTION__, PTR_ERR(de));
- dput(inodir);
- return NULL;
- }
-
- dd = presto_d2d(real);
- if (!dd)
- BUG();
-
- /* already exists */
- if (de->d_inode)
- BUG();
-#if 0
- if (de->d_inode != inode ) {
- CERROR("XX de->d_inode %ld, inode %ld\n",
- de->d_inode->i_ino, inode->i_ino);
- BUG();
- }
- if (dd->dd_inodentry) {
- CERROR("inodentry exists %ld \n", inode->i_ino);
- BUG();
- }
- dput(inodir);
- return de;
- }
-#endif
-
- if (presto_d2d(de))
- BUG();
-
- atomic_inc(&inode->i_count);
- de->d_op = &presto_dentry_ops;
- d_add(de, inode);
- if (!de->d_op)
- CERROR("DD: no ops dentry %p, dd %p\n", de, dd);
- dd->dd_inodentry = de;
- dd->dd_count++;
- de->d_fsdata = dd;
-
- dput(inodir);
- return de;
-}
-
-struct dentry *presto_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
-{
- int rc = 0;
- struct dentry *de;
- struct presto_cache *cache;
- int minor;
- ino_t ino;
- unsigned int generation;
- struct inode_operations *iops;
- int is_ilookup = 0;
-
- ENTRY;
- cache = presto_get_cache(dir);
- if (cache == NULL) {
- CERROR("InterMezzo BUG: no cache in presto_lookup "
- "(dir ino: %ld)!\n", dir->i_ino);
- EXIT;
- return NULL;
- }
- minor = presto_c2m(cache);
-
- iops = filter_c2cdiops(cache->cache_filter);
- if (!iops || !iops->lookup) {
- CERROR("InterMezzo BUG: filesystem has no lookup\n");
- EXIT;
- return NULL;
- }
-
-
- CDEBUG(D_CACHE, "dentry %p, dir ino: %ld, name: %*s, islento: %d\n",
- dentry, dir->i_ino, dentry->d_name.len, dentry->d_name.name,
- ISLENTO(minor));
-
- if (dentry->d_fsdata)
- CERROR("DD -- BAD dentry %p has data\n", dentry);
-
- dentry->d_fsdata = NULL;
-#if 0
- if (ext2_check_for_iopen(dir, dentry))
- de = NULL;
- else {
-#endif
- if ( izo_dentry_is_ilookup(dentry, &ino, &generation) ) {
- de = cache->cache_filter->o_trops->tr_ilookup
- (dir, dentry, ino, generation);
- is_ilookup = 1;
- } else
- de = iops->lookup(dir, dentry, nd);
-#if 0
- }
-#endif
-
- if ( IS_ERR(de) ) {
- CERROR("dentry lookup error %ld\n", PTR_ERR(de));
- return de;
- }
-
- /* some file systems have no read_inode: set methods here */
- if (dentry->d_inode)
- presto_set_ops(dentry->d_inode, cache->cache_filter);
-
- filter_setup_dentry_ops(cache->cache_filter,
- dentry->d_op, &presto_dentry_ops);
- dentry->d_op = filter_c2udops(cache->cache_filter);
-
- /* In lookup we will tolerate EROFS return codes from presto_set_dd
- * to placate NFS. EROFS indicates that a fileset was not found but
- * we should still be able to continue through a lookup.
- * Anything else is a hard error and must be returned to VFS. */
- if (!is_ilookup)
- rc = presto_set_dd(dentry);
- if (rc && rc != -EROFS) {
- CERROR("presto_set_dd failed (dir %ld, name %*s): %d\n",
- dir->i_ino, dentry->d_name.len, dentry->d_name.name, rc);
- return ERR_PTR(rc);
- }
-
- EXIT;
- return NULL;
-}
-
-static inline int presto_check_set_fsdata (struct dentry *de)
-{
- if (presto_d2d(de) == NULL) {
-#ifdef PRESTO_NO_NFS
- CERROR("dentry without fsdata: %p: %*s\n", de,
- de->d_name.len, de->d_name.name);
- BUG();
-#endif
- return presto_set_dd (de);
- }
-
- return 0;
-}
-
-int presto_setattr(struct dentry *de, struct iattr *iattr)
-{
- int error;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct lento_vfs_context info = { 0, {0}, 0 };
-
- ENTRY;
-
- error = presto_prep(de, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- if (!iattr->ia_valid)
- CDEBUG(D_INODE, "presto_setattr: iattr is not valid\n");
-
- CDEBUG(D_INODE, "valid %#x, mode %#o, uid %u, gid %u, size %Lu, "
- "atime %lu mtime %lu ctime %lu flags %d\n",
- iattr->ia_valid, iattr->ia_mode, iattr->ia_uid, iattr->ia_gid,
- iattr->ia_size, iattr->ia_atime.tv_sec, iattr->ia_mtime.tv_sec,
- iattr->ia_ctime.tv_sec, iattr->ia_attr_flags);
-
- if ( presto_get_permit(de->d_inode) < 0 ) {
- EXIT;
- return -EROFS;
- }
-
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
- error = presto_do_setattr(fset, de, iattr, &info);
- presto_put_permit(de->d_inode);
- return error;
-}
-
-/*
- * Now the meat: the fs operations that require journaling
- *
- *
- * XXX: some of these need modifications for hierarchical filesets
- */
-
-int presto_prep(struct dentry *dentry, struct presto_cache **cache,
- struct presto_file_set **fset)
-{
- int rc;
-
- /* NFS might pass us dentries which have not gone through lookup.
- * Test and set d_fsdata for such dentries
- */
- rc = presto_check_set_fsdata (dentry);
- if (rc) return rc;
-
- *fset = presto_fset(dentry);
- if ( *fset == NULL ) {
- CERROR("No file set for dentry at %p: %*s\n", dentry,
- dentry->d_name.len, dentry->d_name.name);
- return -EROFS;
- }
-
- *cache = (*fset)->fset_cache;
- if ( *cache == NULL ) {
- CERROR("PRESTO: BAD, BAD: cannot find cache\n");
- return -EBADF;
- }
-
- CDEBUG(D_PIOCTL, "---> cache flags %x, fset flags %x\n",
- (*cache)->cache_flags, (*fset)->fset_flags);
- if( presto_is_read_only(*fset) ) {
- CERROR("PRESTO: cannot modify read-only fileset, minor %d.\n",
- presto_c2m(*cache));
- return -EROFS;
- }
- return 0;
-}
-
-static int presto_create(struct inode * dir, struct dentry * dentry, int mode,
- struct nameidata *nd)
-{
- int error;
- struct presto_cache *cache;
- struct dentry *parent = dentry->d_parent;
- struct lento_vfs_context info;
- struct presto_file_set *fset;
-
- ENTRY;
- error = presto_check_set_fsdata(dentry);
- if ( error ) {
- EXIT;
- return error;
- }
-
- error = presto_prep(dentry->d_parent, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
- presto_unlock(dir);
-
- /* Does blocking and non-blocking behavious need to be
- checked for. Without blocking (return 1), the permit
- was acquired without reintegration
- */
- if ( presto_get_permit(dir) < 0 ) {
- EXIT;
- presto_fulllock(dir);
- return -EROFS;
- }
-
- presto_relock_sem(dir);
- parent = dentry->d_parent;
- memset(&info, 0, sizeof(info));
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
- error = presto_do_create(fset, parent, dentry, mode, &info);
-
- presto_relock_other(dir);
- presto_put_permit(dir);
- EXIT;
- return error;
-}
-
-static int presto_link(struct dentry *old_dentry, struct inode *dir,
- struct dentry *new_dentry)
-{
- int error;
- struct presto_cache *cache, *new_cache;
- struct presto_file_set *fset, *new_fset;
- struct dentry *parent = new_dentry->d_parent;
- struct lento_vfs_context info;
-
- ENTRY;
- error = presto_prep(old_dentry, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- error = presto_check_set_fsdata(new_dentry);
- if ( error ) {
- EXIT;
- return error;
- }
-
- error = presto_prep(new_dentry->d_parent, &new_cache, &new_fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- if (fset != new_fset) {
- EXIT;
- return -EXDEV;
- }
-
- presto_unlock(dir);
- if ( presto_get_permit(old_dentry->d_inode) < 0 ) {
- EXIT;
- presto_fulllock(dir);
- return -EROFS;
- }
-
- if ( presto_get_permit(dir) < 0 ) {
- EXIT;
- presto_fulllock(dir);
- return -EROFS;
- }
-
- presto_relock_sem(dir);
- parent = new_dentry->d_parent;
-
- memset(&info, 0, sizeof(info));
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
- error = presto_do_link(fset, old_dentry, parent,
- new_dentry, &info);
-
-#if 0
- /* XXX for links this is not right */
- if (cache->cache_filter->o_trops->tr_add_ilookup ) {
- struct dentry *d;
- d = cache->cache_filter->o_trops->tr_add_ilookup
- (dir->i_sb->s_root, new_dentry, 1);
- }
-#endif
-
- presto_relock_other(dir);
- presto_put_permit(dir);
- presto_put_permit(old_dentry->d_inode);
- return error;
-}
-
-static int presto_mkdir(struct inode * dir, struct dentry * dentry, int mode)
-{
- int error;
- struct presto_file_set *fset;
- struct presto_cache *cache;
- struct dentry *parent = dentry->d_parent;
- struct lento_vfs_context info;
-
- ENTRY;
-
- error = presto_check_set_fsdata(dentry);
- if ( error ) {
- EXIT;
- return error;
- }
-
- error = presto_prep(dentry->d_parent, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- presto_unlock(dir);
-
- if ( presto_get_permit(dir) < 0 ) {
- EXIT;
- presto_fulllock(dir);
- return -EROFS;
- }
-
- memset(&info, 0, sizeof(info));
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
-
- presto_relock_sem(dir);
- parent = dentry->d_parent;
- error = presto_do_mkdir(fset, parent, dentry, mode, &info);
- presto_relock_other(dir);
- presto_put_permit(dir);
- return error;
-}
-
-
-
-static int presto_symlink(struct inode *dir, struct dentry *dentry,
- const char *name)
-{
- int error;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct dentry *parent = dentry->d_parent;
- struct lento_vfs_context info;
-
- ENTRY;
- error = presto_check_set_fsdata(dentry);
- if ( error ) {
- EXIT;
- return error;
- }
-
- error = presto_prep(dentry->d_parent, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- presto_unlock(dir);
- if ( presto_get_permit(dir) < 0 ) {
- EXIT;
- presto_fulllock(dir);
- return -EROFS;
- }
-
- presto_relock_sem(dir);
- parent = dentry->d_parent;
- memset(&info, 0, sizeof(info));
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
- error = presto_do_symlink(fset, parent, dentry, name, &info);
- presto_relock_other(dir);
- presto_put_permit(dir);
- return error;
-}
-
-int presto_unlink(struct inode *dir, struct dentry *dentry)
-{
- int error;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct dentry *parent = dentry->d_parent;
- struct lento_vfs_context info;
-
- ENTRY;
- error = presto_check_set_fsdata(dentry);
- if ( error ) {
- EXIT;
- return error;
- }
-
- error = presto_prep(dentry->d_parent, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- presto_unlock(dir);
- if ( presto_get_permit(dir) < 0 ) {
- EXIT;
- presto_fulllock(dir);
- return -EROFS;
- }
-
- presto_relock_sem(dir);
- parent = dentry->d_parent;
- memset(&info, 0, sizeof(info));
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
-
- error = presto_do_unlink(fset, parent, dentry, &info);
-
- presto_relock_other(dir);
- presto_put_permit(dir);
- return error;
-}
-
-static int presto_rmdir(struct inode *dir, struct dentry *dentry)
-{
- int error;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct dentry *parent = dentry->d_parent;
- struct lento_vfs_context info;
-
- ENTRY;
- CDEBUG(D_FILE, "prepping presto\n");
- error = presto_check_set_fsdata(dentry);
-
- if ( error ) {
- EXIT;
- return error;
- }
-
- error = presto_prep(dentry->d_parent, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- CDEBUG(D_FILE, "unlocking\n");
- /* We need to dget() before the dput in double_unlock, to ensure we
- * still have dentry references. double_lock doesn't do dget for us.
- */
- if (d_unhashed(dentry))
- d_rehash(dentry);
- // double_up(&dir->i_zombie, &dentry->d_inode->i_zombie);
- up(&dentry->d_inode->i_sem);
- up(&dir->i_sem);
-
- CDEBUG(D_FILE, "getting permit\n");
- if ( presto_get_permit(parent->d_inode) < 0 ) {
- EXIT;
- down(&dir->i_sem);
- down(&dentry->d_inode->i_sem);
- // double_down(&dir->i_sem, &dentry->d_inode->i_sem);
- // double_down(&dir->i_zombie, &dentry->d_inode->i_zombie);
-
- lock_kernel();
- return -EROFS;
- }
- CDEBUG(D_FILE, "locking\n");
-
- down(&dir->i_sem);
- down(&dentry->d_inode->i_sem);
- parent = dentry->d_parent;
- memset(&info, 0, sizeof(info));
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
- error = presto_do_rmdir(fset, parent, dentry, &info);
- presto_put_permit(parent->d_inode);
- lock_kernel();
- EXIT;
- return error;
-}
-
-static int presto_mknod(struct inode * dir, struct dentry * dentry, int mode, dev_t rdev)
-{
- int error;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct dentry *parent = dentry->d_parent;
- struct lento_vfs_context info;
-
- if (!old_valid_dev(rdev))
- return -EINVAL;
-
- ENTRY;
- error = presto_check_set_fsdata(dentry);
- if ( error ) {
- EXIT;
- return error;
- }
-
- error = presto_prep(dentry->d_parent, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- presto_unlock(dir);
- if ( presto_get_permit(dir) < 0 ) {
- EXIT;
- presto_fulllock(dir);
- return -EROFS;
- }
-
- presto_relock_sem(dir);
- parent = dentry->d_parent;
- memset(&info, 0, sizeof(info));
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
- error = presto_do_mknod(fset, parent, dentry, mode, rdev, &info);
- presto_relock_other(dir);
- presto_put_permit(dir);
- EXIT;
- return error;
-}
-
-
-
-// XXX this can be optimized: renamtes across filesets only require
-// multiple KML records, but can locally be executed normally.
-int presto_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-{
- int error;
- struct presto_cache *cache, *new_cache;
- struct presto_file_set *fset, *new_fset;
- struct lento_vfs_context info;
- struct dentry *old_parent = old_dentry->d_parent;
- struct dentry *new_parent = new_dentry->d_parent;
- int triple;
-
- ENTRY;
- error = presto_prep(old_dentry, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
- error = presto_prep(new_parent, &new_cache, &new_fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- if ( fset != new_fset ) {
- EXIT;
- return -EXDEV;
- }
-
- /* We need to do dget before the dput in double_unlock, to ensure we
- * still have dentry references. double_lock doesn't do dget for us.
- */
-
- triple = (S_ISDIR(old_dentry->d_inode->i_mode) && new_dentry->d_inode)?
- 1:0;
-
- unlock_rename(new_dentry->d_parent, old_dentry->d_parent);
-
- if ( presto_get_permit(old_dir) < 0 ) {
- EXIT;
- return -EROFS;
- }
- if ( presto_get_permit(new_dir) < 0 ) {
- EXIT;
- return -EROFS;
- }
-
- lock_rename(new_dentry->d_parent, old_dentry->d_parent);
- memset(&info, 0, sizeof(info));
- if (!ISLENTO(presto_c2m(cache)))
- info.flags = LENTO_FL_KML;
- info.flags |= LENTO_FL_IGNORE_TIME;
- error = do_rename(fset, old_parent, old_dentry, new_parent,
- new_dentry, &info);
-
- presto_put_permit(new_dir);
- presto_put_permit(old_dir);
- return error;
-}
-
-/* basically this allows the ilookup processes access to all files for
- * reading, while not making ilookup totally insecure. This could all
- * go away if we could set the CAP_DAC_READ_SEARCH capability for the client.
- */
-/* If posix acls are available, the underlying cache fs will export the
- * appropriate permission function. Thus we do not worry here about ACLs
- * or EAs. -SHP
- */
-int presto_permission(struct inode *inode, int mask, struct nameidata *nd)
-{
- unsigned short mode = inode->i_mode;
- struct presto_cache *cache;
- int rc;
-
- ENTRY;
- if ( presto_can_ilookup() && !(mask & S_IWOTH)) {
- CDEBUG(D_CACHE, "ilookup on %ld OK\n", inode->i_ino);
- EXIT;
- return 0;
- }
-
- cache = presto_get_cache(inode);
-
- if ( cache ) {
- /* we only override the file/dir permission operations */
- struct inode_operations *fiops = filter_c2cfiops(cache->cache_filter);
- struct inode_operations *diops = filter_c2cdiops(cache->cache_filter);
-
- if ( S_ISREG(mode) && fiops && fiops->permission ) {
- EXIT;
- return fiops->permission(inode, mask, nd);
- }
- if ( S_ISDIR(mode) && diops && diops->permission ) {
- EXIT;
- return diops->permission(inode, mask, nd);
- }
- }
-
- /* The cache filesystem doesn't have its own permission function,
- * so we call the default one.
- */
- rc = vfs_permission(inode, mask);
-
- EXIT;
- return rc;
-}
-
-
-int presto_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- char buf[1024];
- struct izo_ioctl_data *data = NULL;
- struct presto_dentry_data *dd;
- int rc;
-
- ENTRY;
-
- /* Try the filesystem's ioctl first, and return if it succeeded. */
- dd = presto_d2d(file->f_dentry);
- if (dd && dd->dd_fset) {
- int (*cache_ioctl)(struct inode *, struct file *, unsigned int, unsigned long ) = filter_c2cdfops(dd->dd_fset->fset_cache->cache_filter)->ioctl;
- rc = -ENOTTY;
- if (cache_ioctl)
- rc = cache_ioctl(inode, file, cmd, arg);
- if (rc != -ENOTTY) {
- EXIT;
- return rc;
- }
- }
-
- if (current->euid != 0 && current->euid != izo_authorized_uid) {
- EXIT;
- return -EPERM;
- }
-
- memset(buf, 0, sizeof(buf));
-
- if (izo_ioctl_getdata(buf, buf + 1024, (void *)arg)) {
- CERROR("intermezzo ioctl: data error\n");
- return -EINVAL;
- }
- data = (struct izo_ioctl_data *)buf;
-
- switch(cmd) {
- case IZO_IOC_REINTKML: {
- int rc;
- int cperr;
- rc = kml_reint_rec(file, data);
-
- EXIT;
- cperr = copy_to_user((char *)arg, data, sizeof(*data));
- if (cperr) {
- CERROR("WARNING: cperr %d\n", cperr);
- rc = -EFAULT;
- }
- return rc;
- }
-
- case IZO_IOC_GET_RCVD: {
- struct izo_rcvd_rec rec;
- struct presto_file_set *fset;
- int rc;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- rc = izo_rcvd_get(&rec, fset, data->ioc_uuid);
- if (rc < 0) {
- EXIT;
- return rc;
- }
-
- EXIT;
- return copy_to_user((char *)arg, &rec, sizeof(rec))? -EFAULT : 0;
- }
-
- case IZO_IOC_REPSTATUS: {
- __u64 client_kmlsize;
- struct izo_rcvd_rec *lr_client;
- struct izo_rcvd_rec rec;
- struct presto_file_set *fset;
- int minor;
- int rc;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- minor = presto_f2m(fset);
-
- client_kmlsize = data->ioc_kmlsize;
- lr_client = (struct izo_rcvd_rec *) data->ioc_pbuf1;
-
- rc = izo_repstatus(fset, client_kmlsize,
- lr_client, &rec);
- if (rc < 0) {
- EXIT;
- return rc;
- }
-
- EXIT;
- return copy_to_user((char *)arg, &rec, sizeof(rec))? -EFAULT : 0;
- }
-
- case IZO_IOC_GET_CHANNEL: {
- struct presto_file_set *fset;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
-
- data->ioc_dev = fset->fset_cache->cache_psdev->uc_minor;
- CDEBUG(D_PSDEV, "CHANNEL %d\n", data->ioc_dev);
- EXIT;
- return copy_to_user((char *)arg, data, sizeof(*data))? -EFAULT : 0;
- }
-
- case IZO_IOC_SET_IOCTL_UID:
- izo_authorized_uid = data->ioc_uid;
- EXIT;
- return 0;
-
- case IZO_IOC_SET_PID:
- rc = izo_psdev_setpid(data->ioc_dev);
- EXIT;
- return rc;
-
- case IZO_IOC_SET_CHANNEL:
- rc = izo_psdev_setchannel(file, data->ioc_dev);
- EXIT;
- return rc;
-
- case IZO_IOC_GET_KML_SIZE: {
- struct presto_file_set *fset;
- __u64 kmlsize;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
-
- kmlsize = presto_kml_offset(fset) + fset->fset_kml_logical_off;
-
- EXIT;
- return copy_to_user((char *)arg, &kmlsize, sizeof(kmlsize))?-EFAULT : 0;
- }
-
- case IZO_IOC_PURGE_FILE_DATA: {
- struct presto_file_set *fset;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
-
- rc = izo_purge_file(fset, data->ioc_inlbuf1);
- EXIT;
- return rc;
- }
-
- case IZO_IOC_GET_FILEID: {
- rc = izo_get_fileid(file, data);
- EXIT;
- if (rc)
- return rc;
- return copy_to_user((char *)arg, data, sizeof(*data))? -EFAULT : 0;
- }
-
- case IZO_IOC_SET_FILEID: {
- rc = izo_set_fileid(file, data);
- EXIT;
- if (rc)
- return rc;
- return copy_to_user((char *)arg, data, sizeof(*data))? -EFAULT : 0;
- }
-
- case IZO_IOC_ADJUST_LML: {
- struct lento_vfs_context *info;
- info = (struct lento_vfs_context *)data->ioc_inlbuf1;
- rc = presto_adjust_lml(file, info);
- EXIT;
- return rc;
- }
-
- case IZO_IOC_CONNECT: {
- struct presto_file_set *fset;
- int minor;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- minor = presto_f2m(fset);
-
- rc = izo_upc_connect(minor, data->ioc_ino,
- data->ioc_generation, data->ioc_uuid,
- data->ioc_flags);
- EXIT;
- return rc;
- }
-
- case IZO_IOC_GO_FETCH_KML: {
- struct presto_file_set *fset;
- int minor;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- minor = presto_f2m(fset);
-
- rc = izo_upc_go_fetch_kml(minor, fset->fset_name,
- data->ioc_uuid, data->ioc_kmlsize);
- EXIT;
- return rc;
- }
-
- case IZO_IOC_REVOKE_PERMIT:
- if (data->ioc_flags)
- rc = izo_revoke_permit(file->f_dentry, data->ioc_uuid);
- else
- rc = izo_revoke_permit(file->f_dentry, NULL);
- EXIT;
- return rc;
-
- case IZO_IOC_CLEAR_FSET:
- rc = izo_clear_fsetroot(file->f_dentry);
- EXIT;
- return rc;
-
- case IZO_IOC_CLEAR_ALL_FSETS: {
- struct presto_file_set *fset;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
-
- rc = izo_clear_all_fsetroots(fset->fset_cache);
- EXIT;
- return rc;
- }
-
- case IZO_IOC_SET_FSET:
- /*
- * Mark this dentry as being a fileset root.
- */
- rc = presto_set_fsetroot_from_ioc(file->f_dentry,
- data->ioc_inlbuf1,
- data->ioc_flags);
- EXIT;
- return rc;
-
-
- case IZO_IOC_MARK: {
- int res = 0; /* resulting flags - returned to user */
- int error;
-
- CDEBUG(D_DOWNCALL, "mark inode: %ld, and: %x, or: %x, what %d\n",
- file->f_dentry->d_inode->i_ino, data->ioc_and_flag,
- data->ioc_or_flag, data->ioc_mark_what);
-
- switch (data->ioc_mark_what) {
- case MARK_DENTRY:
- error = izo_mark_dentry(file->f_dentry,
- data->ioc_and_flag,
- data->ioc_or_flag, &res);
- break;
- case MARK_FSET:
- error = izo_mark_fset(file->f_dentry,
- data->ioc_and_flag,
- data->ioc_or_flag, &res);
- break;
- case MARK_CACHE:
- error = izo_mark_cache(file->f_dentry,
- data->ioc_and_flag,
- data->ioc_or_flag, &res);
- break;
- case MARK_GETFL: {
- int fflags, cflags;
- data->ioc_and_flag = 0xffffffff;
- data->ioc_or_flag = 0;
- error = izo_mark_dentry(file->f_dentry,
- data->ioc_and_flag,
- data->ioc_or_flag, &res);
- if (error)
- break;
- error = izo_mark_fset(file->f_dentry,
- data->ioc_and_flag,
- data->ioc_or_flag, &fflags);
- if (error)
- break;
- error = izo_mark_cache(file->f_dentry,
- data->ioc_and_flag,
- data->ioc_or_flag,
- &cflags);
-
- if (error)
- break;
- data->ioc_and_flag = fflags;
- data->ioc_or_flag = cflags;
- break;
- }
- default:
- error = -EINVAL;
- }
-
- if (error) {
- EXIT;
- return error;
- }
- data->ioc_mark_what = res;
- CDEBUG(D_DOWNCALL, "mark inode: %ld, and: %x, or: %x, what %x\n",
- file->f_dentry->d_inode->i_ino, data->ioc_and_flag,
- data->ioc_or_flag, data->ioc_mark_what);
-
- EXIT;
- return copy_to_user((char *)arg, data, sizeof(*data))? -EFAULT : 0;
- }
-#if 0
- case IZO_IOC_CLIENT_MAKE_BRANCH: {
- struct presto_file_set *fset;
- int minor;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- minor = presto_f2m(fset);
-
- rc = izo_upc_client_make_branch(minor, fset->fset_name,
- data->ioc_inlbuf1,
- data->ioc_inlbuf2);
- EXIT;
- return rc;
- }
-#endif
- case IZO_IOC_SERVER_MAKE_BRANCH: {
- struct presto_file_set *fset;
- int minor;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- minor = presto_f2m(fset);
-
- izo_upc_server_make_branch(minor, data->ioc_inlbuf1);
- EXIT;
- return 0;
- }
- case IZO_IOC_SET_KMLSIZE: {
- struct presto_file_set *fset;
- int minor;
- struct izo_rcvd_rec rec;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- minor = presto_f2m(fset);
-
- rc = izo_upc_set_kmlsize(minor, fset->fset_name, data->ioc_uuid,
- data->ioc_kmlsize);
-
- if (rc != 0) {
- EXIT;
- return rc;
- }
-
- rc = izo_rcvd_get(&rec, fset, data->ioc_uuid);
- if (rc == -EINVAL) {
- /* We don't know anything about this uuid yet; no
- * worries. */
- memset(&rec, 0, sizeof(rec));
- } else if (rc <= 0) {
- CERROR("InterMezzo: error reading last_rcvd: %d\n", rc);
- EXIT;
- return rc;
- }
- rec.lr_remote_offset = data->ioc_kmlsize;
- rc = izo_rcvd_write(fset, &rec);
- if (rc <= 0) {
- CERROR("InterMezzo: error writing last_rcvd: %d\n", rc);
- EXIT;
- return rc;
- }
- EXIT;
- return rc;
- }
- case IZO_IOC_BRANCH_UNDO: {
- struct presto_file_set *fset;
- int minor;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- minor = presto_f2m(fset);
-
- rc = izo_upc_branch_undo(minor, fset->fset_name,
- data->ioc_inlbuf1);
- EXIT;
- return rc;
- }
- case IZO_IOC_BRANCH_REDO: {
- struct presto_file_set *fset;
- int minor;
-
- fset = presto_fset(file->f_dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
- minor = presto_f2m(fset);
-
- rc = izo_upc_branch_redo(minor, fset->fset_name,
- data->ioc_inlbuf1);
- EXIT;
- return rc;
- }
-
- default:
- EXIT;
- return -ENOTTY;
-
- }
- EXIT;
- return 0;
-}
-
-struct file_operations presto_dir_fops = {
- .ioctl = presto_ioctl
-};
-
-struct inode_operations presto_dir_iops = {
- .create = presto_create,
- .lookup = presto_lookup,
- .link = presto_link,
- .unlink = presto_unlink,
- .symlink = presto_symlink,
- .mkdir = presto_mkdir,
- .rmdir = presto_rmdir,
- .mknod = presto_mknod,
- .rename = presto_rename,
- .permission = presto_permission,
- .setattr = presto_setattr,
-#ifdef CONFIG_FS_EXT_ATTR
- .set_ext_attr = presto_set_ext_attr,
-#endif
-};
-
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Tacit Networks, Inc.
- * Author: Shirish H. Phatak <shirish@tacitnetworks.com>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Extended attribute handling for presto.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <asm/segment.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#ifdef CONFIG_FS_EXT_ATTR
-#include <linux/ext_attr.h>
-
-extern inline void presto_debug_fail_blkdev(struct presto_file_set *fset,
- unsigned long value);
-
-
-/* VFS interface */
-/* XXX! Fixme test for user defined attributes */
-int presto_set_ext_attr(struct inode *inode,
- const char *name, void *buffer,
- size_t buffer_len, int flags)
-{
- int error;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct lento_vfs_context info;
- struct dentry *dentry;
- int minor = presto_i2m(inode);
- char *buf = NULL;
-
- ENTRY;
- if (minor < 0) {
- EXIT;
- return -1;
- }
-
- if ( ISLENTO(minor) ) {
- EXIT;
- return -EINVAL;
- }
-
- /* BAD...vfs should really pass down the dentry to use, especially
- * since every other operation in iops does. But for now
- * we do a reverse mapping from inode to the first dentry
- */
- if (list_empty(&inode->i_dentry)) {
- CERROR("No alias for inode %d\n", (int) inode->i_ino);
- EXIT;
- return -EINVAL;
- }
-
- dentry = list_entry(inode->i_dentry.next, struct dentry, d_alias);
-
- error = presto_prep(dentry, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- if ((buffer != NULL) && (buffer_len != 0)) {
- /* If buffer is a user space pointer copy it to kernel space
- * and reset the flag. We do this since the journal functions need
- * access to the contents of the buffer, and the file system
- * does not care. When we actually invoke the function, we remove
- * the EXT_ATTR_FLAG_USER flag.
- *
- * XXX:Check if the "fs does not care" assertion is always true -SHP
- * (works for ext3)
- */
- if (flags & EXT_ATTR_FLAG_USER) {
- PRESTO_ALLOC(buf, buffer_len);
- if (!buf) {
- CERROR("InterMezzo: out of memory!!!\n");
- return -ENOMEM;
- }
- error = copy_from_user(buf, buffer, buffer_len);
- if (error)
- return -EFAULT;
- } else
- buf = buffer;
- } else
- buf = buffer;
-
- if ( presto_get_permit(inode) < 0 ) {
- EXIT;
- if (buffer_len && (flags & EXT_ATTR_FLAG_USER))
- PRESTO_FREE(buf, buffer_len);
- return -EROFS;
- }
-
- /* Simulate presto_setup_info */
- memset(&info, 0, sizeof(info));
- /* For now redundant..but we keep it around just in case */
- info.flags = LENTO_FL_IGNORE_TIME;
- if (!ISLENTO(cache->cache_psdev->uc_minor))
- info.flags |= LENTO_FL_KML;
-
- /* We pass in the kernel space pointer and reset the
- * EXT_ATTR_FLAG_USER flag.
- * See comments above.
- */
- /* Note that mode is already set by VFS so we send in a NULL */
- error = presto_do_set_ext_attr(fset, dentry, name, buf,
- buffer_len, flags & ~EXT_ATTR_FLAG_USER,
- NULL, &info);
- presto_put_permit(inode);
-
- if (buffer_len && (flags & EXT_ATTR_FLAG_USER))
- PRESTO_FREE(buf, buffer_len);
- EXIT;
- return error;
-}
-
-/* Lento Interface */
-/* XXX: ignore flags? We should be forcing these operations through? -SHP*/
-int lento_set_ext_attr(const char *path, const char *name,
- void *buffer, size_t buffer_len, int flags, mode_t mode,
- struct lento_vfs_context *info)
-{
- int error;
- char * pathname;
- struct nameidata nd;
- struct dentry *dentry;
- struct presto_file_set *fset;
-
- ENTRY;
- lock_kernel();
-
- pathname=getname(path);
- error = PTR_ERR(pathname);
- if (IS_ERR(pathname)) {
- EXIT;
- goto exit;
- }
-
- /* Note that ext_attrs apply to both files and directories..*/
- error=presto_walk(pathname,&nd);
- if (error)
- goto exit;
- dentry = nd.dentry;
-
- fset = presto_fset(dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto exit_dentry;
- }
-
- if (buffer==NULL) buffer_len=0;
-
- error = presto_do_set_ext_attr(fset, dentry, name, buffer,
- buffer_len, flags, &mode, info);
-exit_dentry:
- path_release(&nd);
-exit_path:
- putname(pathname);
-exit:
- unlock_kernel();
- return error;
-}
-
-#endif /*CONFIG_FS_EXT_ATTR*/
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2000 Stelias Computing, Inc.
- * Copyright (C) 2000 Red Hat, Inc.
- * Copyright (C) 2000 TurboLinux, Inc.
- * Copyright (C) 2000 Los Alamos National Laboratory.
- * Copyright (C) 2000, 2001 Tacit Networks, Inc.
- * Copyright (C) 2000 Peter J. Braam
- * Copyright (C) 2001 Mountain View Data, Inc.
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * This file manages file I/O
- *
- */
-
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/ext2_fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <linux/fsfilter.h>
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-/*
- * these are initialized in super.c
- */
-extern int presto_permission(struct inode *inode, int mask, struct nameidata *nd);
-
-
-static int presto_open_upcall(int minor, struct dentry *de)
-{
- int rc = 0;
- char *path, *buffer;
- struct presto_file_set *fset;
- int pathlen;
- struct lento_vfs_context info;
- struct presto_dentry_data *dd = presto_d2d(de);
-
- PRESTO_ALLOC(buffer, PAGE_SIZE);
- if ( !buffer ) {
- CERROR("PRESTO: out of memory!\n");
- return -ENOMEM;
- }
- fset = presto_fset(de);
- path = presto_path(de, fset->fset_dentry, buffer, PAGE_SIZE);
- pathlen = MYPATHLEN(buffer, path);
-
- CDEBUG(D_FILE, "de %p, dd %p\n", de, dd);
- if (dd->remote_ino == 0) {
- rc = presto_get_fileid(minor, fset, de);
- }
- memset (&info, 0, sizeof(info));
- if (dd->remote_ino > 0) {
- info.remote_ino = dd->remote_ino;
- info.remote_generation = dd->remote_generation;
- } else
- CERROR("get_fileid failed %d, ino: %Lx, fetching by name\n", rc,
- (unsigned long long) dd->remote_ino);
-
- rc = izo_upc_open(minor, pathlen, path, fset->fset_name, &info);
- PRESTO_FREE(buffer, PAGE_SIZE);
- return rc;
-}
-
-static inline int open_check_dod(struct file *file,
- struct presto_file_set *fset)
-{
- int gen, is_iopen = 0, minor;
- struct presto_cache *cache = fset->fset_cache;
- ino_t inum;
-
- minor = presto_c2m(cache);
-
- if ( ISLENTO(minor) ) {
- CDEBUG(D_CACHE, "is lento, not doing DOD.\n");
- return 0;
- }
-
- /* Files are only ever opened by inode during backfetches, when by
- * definition we have the authoritative copy of the data. No DOD. */
- is_iopen = izo_dentry_is_ilookup(file->f_dentry, &inum, &gen);
-
- if (is_iopen) {
- CDEBUG(D_CACHE, "doing iopen, not doing DOD.\n");
- return 0;
- }
-
- if (!(fset->fset_flags & FSET_DATA_ON_DEMAND)) {
- CDEBUG(D_CACHE, "fileset not on demand.\n");
- return 0;
- }
-
- if (file->f_flags & O_TRUNC) {
- CDEBUG(D_CACHE, "fileset dod: O_TRUNC.\n");
- return 0;
- }
-
- if (presto_chk(file->f_dentry, PRESTO_DONT_JOURNAL)) {
- CDEBUG(D_CACHE, "file under .intermezzo, not doing DOD\n");
- return 0;
- }
-
- if (presto_chk(file->f_dentry, PRESTO_DATA)) {
- CDEBUG(D_CACHE, "PRESTO_DATA is set, not doing DOD.\n");
- return 0;
- }
-
- if (cache->cache_filter->o_trops->tr_all_data(file->f_dentry->d_inode)) {
- CDEBUG(D_CACHE, "file not sparse, not doing DOD.\n");
- return 0;
- }
-
- return 1;
-}
-
-static int presto_file_open(struct inode *inode, struct file *file)
-{
- int rc = 0;
- struct file_operations *fops;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct presto_file_data *fdata;
- int writable = (file->f_flags & (O_RDWR | O_WRONLY));
- int minor, i;
-
- ENTRY;
-
- if (presto_prep(file->f_dentry, &cache, &fset) < 0) {
- EXIT;
- return -EBADF;
- }
-
- minor = presto_c2m(cache);
-
- CDEBUG(D_CACHE, "DATA_OK: %d, ino: %ld, islento: %d\n",
- presto_chk(file->f_dentry, PRESTO_DATA), inode->i_ino,
- ISLENTO(minor));
-
- if ( !ISLENTO(minor) && (file->f_flags & O_RDWR ||
- file->f_flags & O_WRONLY)) {
- CDEBUG(D_CACHE, "calling presto_get_permit\n");
- if ( presto_get_permit(inode) < 0 ) {
- EXIT;
- return -EROFS;
- }
- presto_put_permit(inode);
- }
-
- if (open_check_dod(file, fset)) {
- CDEBUG(D_CACHE, "presto_open_upcall\n");
- CDEBUG(D_CACHE, "dentry: %p setting DATA, ATTR\n", file->f_dentry);
- presto_set(file->f_dentry, PRESTO_ATTR | PRESTO_DATA);
- rc = presto_open_upcall(minor, file->f_dentry);
- if (rc) {
- EXIT;
- CERROR("%s: returning error %d\n", __FUNCTION__, rc);
- return rc;
- }
-
- }
-
- /* file was truncated upon open: do not refetch */
- if (file->f_flags & O_TRUNC) {
- CDEBUG(D_CACHE, "setting DATA, ATTR\n");
- presto_set(file->f_dentry, PRESTO_ATTR | PRESTO_DATA);
- }
-
- fops = filter_c2cffops(cache->cache_filter);
- if ( fops->open ) {
- CDEBUG(D_CACHE, "calling fs open\n");
- rc = fops->open(inode, file);
-
- if (rc) {
- EXIT;
- return rc;
- }
- }
-
- if (writable) {
- PRESTO_ALLOC(fdata, sizeof(*fdata));
- if (!fdata) {
- EXIT;
- return -ENOMEM;
- }
- /* LOCK: XXX check that the kernel lock protects this alloc */
- fdata->fd_do_lml = 0;
- fdata->fd_bytes_written = 0;
- fdata->fd_fsuid = current->fsuid;
- fdata->fd_fsgid = current->fsgid;
- fdata->fd_mode = file->f_dentry->d_inode->i_mode;
- fdata->fd_uid = file->f_dentry->d_inode->i_uid;
- fdata->fd_gid = file->f_dentry->d_inode->i_gid;
- fdata->fd_ngroups = current->group_info->ngroups;
- for (i=0 ; i < current->group_info->ngroups ; i++)
- fdata->fd_groups[i] = GROUP_AT(current->group_info,i);
- if (!ISLENTO(minor))
- fdata->fd_info.flags = LENTO_FL_KML;
- else {
- /* this is for the case of DOD,
- reint_close will adjust flags if needed */
- fdata->fd_info.flags = 0;
- }
-
- presto_getversion(&fdata->fd_version, inode);
- file->private_data = fdata;
- } else {
- file->private_data = NULL;
- }
-
- EXIT;
- return 0;
-}
-
-int presto_adjust_lml(struct file *file, struct lento_vfs_context *info)
-{
- struct presto_file_data *fdata =
- (struct presto_file_data *) file->private_data;
-
- if (!fdata) {
- EXIT;
- return -EINVAL;
- }
-
- memcpy(&fdata->fd_info, info, sizeof(*info));
- EXIT;
- return 0;
-}
-
-
-static int presto_file_release(struct inode *inode, struct file *file)
-{
- int rc;
- struct file_operations *fops;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct presto_file_data *fdata =
- (struct presto_file_data *)file->private_data;
- ENTRY;
-
- rc = presto_prep(file->f_dentry, &cache, &fset);
- if ( rc ) {
- EXIT;
- return rc;
- }
-
- fops = filter_c2cffops(cache->cache_filter);
- if (fops && fops->release)
- rc = fops->release(inode, file);
-
- CDEBUG(D_CACHE, "islento = %d (minor %d), rc %d, data %p\n",
- ISLENTO(cache->cache_psdev->uc_minor),
- cache->cache_psdev->uc_minor, rc, fdata);
-
- /* this file was modified: ignore close errors, write KML */
- if (fdata && fdata->fd_do_lml) {
- /* XXX: remove when lento gets file granularity cd */
- if ( presto_get_permit(inode) < 0 ) {
- EXIT;
- return -EROFS;
- }
-
- fdata->fd_info.updated_time = file->f_dentry->d_inode->i_mtime;
- rc = presto_do_close(fset, file);
- presto_put_permit(inode);
- }
-
- if (!rc && fdata) {
- PRESTO_FREE(fdata, sizeof(*fdata));
- file->private_data = NULL;
- }
-
- EXIT;
- return rc;
-}
-
-static void presto_apply_write_policy(struct file *file,
- struct presto_file_set *fset, loff_t res)
-{
- struct presto_file_data *fdata =
- (struct presto_file_data *)file->private_data;
- struct presto_cache *cache = fset->fset_cache;
- struct presto_version new_file_ver;
- int error;
- struct rec_info rec;
-
- /* Here we do a journal close after a fixed or a specified
- amount of KBytes, currently a global parameter set with
- sysctl. If files are open for a long time, this gives added
- protection. (XXX todo: per cache, add ioctl, handle
- journaling in a thread, add more options etc.)
- */
-
- if ((fset->fset_flags & FSET_JCLOSE_ON_WRITE) &&
- (!ISLENTO(cache->cache_psdev->uc_minor))) {
- fdata->fd_bytes_written += res;
-
- if (fdata->fd_bytes_written >= fset->fset_file_maxio) {
- presto_getversion(&new_file_ver,
- file->f_dentry->d_inode);
- /* This is really heavy weight and should be fixed
- ASAP. At most we should be recording the number
- of bytes written and not locking the kernel,
- wait for permits, etc, on the write path. SHP
- */
- lock_kernel();
- if ( presto_get_permit(file->f_dentry->d_inode) < 0 ) {
- EXIT;
- /* we must be disconnected, not to worry */
- unlock_kernel();
- return;
- }
- error = presto_journal_close(&rec, fset, fdata,
- file->f_dentry,
- &fdata->fd_version,
- &new_file_ver);
- presto_put_permit(file->f_dentry->d_inode);
- unlock_kernel();
- if ( error ) {
- CERROR("presto_close: cannot journal close\n");
- /* XXX these errors are really bad */
- /* panic(); */
- return;
- }
- fdata->fd_bytes_written = 0;
- }
- }
-}
-
-static ssize_t presto_file_write(struct file *file, const char *buf,
- size_t size, loff_t *off)
-{
- struct rec_info rec;
- int error;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct file_operations *fops;
- ssize_t res;
- int do_lml_here;
- void *handle = NULL;
- unsigned long blocks;
- struct presto_file_data *fdata;
- loff_t res_size;
-
- error = presto_prep(file->f_dentry, &cache, &fset);
- if ( error ) {
- EXIT;
- return error;
- }
-
- blocks = (size >> file->f_dentry->d_inode->i_sb->s_blocksize_bits) + 1;
- /* XXX 3 is for ext2 indirect blocks ... */
- res_size = 2 * PRESTO_REQHIGH + ((blocks+3)
- << file->f_dentry->d_inode->i_sb->s_blocksize_bits);
-
- error = presto_reserve_space(fset->fset_cache, res_size);
- CDEBUG(D_INODE, "Reserved %Ld for %Zd\n", res_size, size);
- if ( error ) {
- EXIT;
- return -ENOSPC;
- }
-
- CDEBUG(D_INODE, "islento %d, minor: %d\n",
- ISLENTO(cache->cache_psdev->uc_minor),
- cache->cache_psdev->uc_minor);
-
- /*
- * XXX this lock should become a per inode lock when
- * Vinny's changes are in; we could just use i_sem.
- */
- read_lock(&fset->fset_lml.fd_lock);
- fdata = (struct presto_file_data *)file->private_data;
- do_lml_here = size && (fdata->fd_do_lml == 0) &&
- !presto_chk(file->f_dentry, PRESTO_DONT_JOURNAL);
-
- if (do_lml_here)
- fdata->fd_do_lml = 1;
- read_unlock(&fset->fset_lml.fd_lock);
-
- /* XXX
- There might be a bug here. We need to make
- absolutely sure that the ext3_file_write commits
- after our transaction that writes the LML record.
- Nesting the file write helps if new blocks are allocated.
- */
- res = 0;
- if (do_lml_here) {
- struct presto_version file_version;
- /* handle different space reqs from file system below! */
- handle = presto_trans_start(fset, file->f_dentry->d_inode,
- KML_OPCODE_WRITE);
- if ( IS_ERR(handle) ) {
- presto_release_space(fset->fset_cache, res_size);
- CERROR("presto_write: no space for transaction\n");
- return -ENOSPC;
- }
-
- presto_getversion(&file_version, file->f_dentry->d_inode);
- res = presto_write_lml_close(&rec, fset, file,
- fdata->fd_info.remote_ino,
- fdata->fd_info.remote_generation,
- &fdata->fd_info.remote_version,
- &file_version);
- fdata->fd_lml_offset = rec.offset;
- if ( res ) {
- CERROR("intermezzo: PANIC failed to write LML\n");
- *(int *)0 = 1;
- EXIT;
- goto exit_write;
- }
- presto_trans_commit(fset, handle);
- }
-
- fops = filter_c2cffops(cache->cache_filter);
- res = fops->write(file, buf, size, off);
- if ( res != size ) {
- CDEBUG(D_FILE, "file write returns short write: size %Zd, res %Zd\n", size, res);
- }
-
- if ( (res > 0) && fdata )
- presto_apply_write_policy(file, fset, res);
-
- exit_write:
- presto_release_space(fset->fset_cache, res_size);
- return res;
-}
-
-struct file_operations presto_file_fops = {
- .write = presto_file_write,
- .open = presto_file_open,
- .release = presto_file_release,
- .ioctl = presto_ioctl
-};
-
-struct inode_operations presto_file_iops = {
- .permission = presto_permission,
- .setattr = presto_setattr,
-#ifdef CONFIG_FS_EXT_ATTR
- .set_ext_attr = presto_set_ext_attr,
-#endif
-};
-
-/* FIXME: I bet we want to add a lock here and in presto_file_open. */
-int izo_purge_file(struct presto_file_set *fset, char *file)
-{
-#if 0
- void *handle = NULL;
- char *path = NULL;
- struct nameidata nd;
- struct dentry *dentry;
- int rc = 0, len;
- loff_t oldsize;
-
- /* FIXME: not mtpt it's gone */
- len = strlen(fset->fset_cache->cache_mtpt) + strlen(file) + 1;
- PRESTO_ALLOC(path, len + 1);
- if (path == NULL)
- return -1;
-
- sprintf(path, "%s/%s", fset->fset_cache->cache_mtpt, file);
- rc = izo_lookup_file(fset, path, &nd);
- if (rc)
- goto error;
- dentry = nd.dentry;
-
- /* FIXME: take a lock here */
-
- if (dentry->d_inode->i_atime.tv_sec > get_seconds() - 5) {
- /* We lost the race; this file was accessed while we were doing
- * ioctls and lookups and whatnot. */
- rc = -EBUSY;
- goto error_unlock;
- }
-
- /* FIXME: Check if this file is open. */
-
- handle = presto_trans_start(fset, dentry->d_inode, KML_OPCODE_TRUNC);
- if (IS_ERR(handle)) {
- rc = -ENOMEM;
- goto error_unlock;
- }
-
- /* FIXME: Write LML record */
-
- oldsize = dentry->d_inode->i_size;
- rc = izo_do_truncate(fset, dentry, 0, oldsize);
- if (rc != 0)
- goto error_clear;
- rc = izo_do_truncate(fset, dentry, oldsize, 0);
- if (rc != 0)
- goto error_clear;
-
- error_clear:
- /* FIXME: clear LML record */
-
- error_unlock:
- /* FIXME: release the lock here */
-
- error:
- if (handle != NULL && !IS_ERR(handle))
- presto_trans_commit(fset, handle);
- if (path != NULL)
- PRESTO_FREE(path, len + 1);
- return rc;
-#else
- return 0;
-#endif
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Managing filesets
- *
- */
-
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/namei.h>
-#include <linux/ext2_fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-static inline struct presto_file_set *presto_dentry2fset(struct dentry *dentry)
-{
- if (presto_d2d(dentry) == NULL) {
- EXIT;
- return NULL;
- }
- return presto_d2d(dentry)->dd_fset;
-}
-
-/* find the fileset dentry for this dentry */
-struct presto_file_set *presto_fset(struct dentry *de)
-{
- struct dentry *fsde;
- ENTRY;
- if ( !de->d_inode ) {
- /* FIXME: is this ok to be NULL? */
- CDEBUG(D_INODE,"presto_fset: warning %*s has NULL inode.\n",
- de->d_name.len, de->d_name.name);
- }
- for (fsde = de;; fsde = fsde->d_parent) {
- if ( presto_dentry2fset(fsde) ) {
- EXIT;
- return presto_dentry2fset(fsde);
- }
- if (fsde->d_parent == fsde)
- break;
- }
- EXIT;
- return NULL;
-}
-
-int presto_get_lastrecno(char *path, off_t *recno)
-{
- struct nameidata nd;
- struct presto_file_set *fset;
- struct dentry *dentry;
- int error;
- ENTRY;
-
- error = presto_walk(path, &nd);
- if (error) {
- EXIT;
- return error;
- }
-
- dentry = nd.dentry;
-
- error = -ENXIO;
- if ( !presto_ispresto(dentry->d_inode) ) {
- EXIT;
- goto kml_out;
- }
-
- error = -EINVAL;
- if ( ! presto_dentry2fset(dentry)) {
- EXIT;
- goto kml_out;
- }
-
- fset = presto_dentry2fset(dentry);
- if (!fset) {
- EXIT;
- goto kml_out;
- }
- error = 0;
- *recno = fset->fset_kml.fd_recno;
-
- kml_out:
- path_release(&nd);
- return error;
-}
-
-static char * _izo_make_path(char *fsetname, char *name)
-{
- char *path = NULL;
- int len;
-
- len = strlen("/.intermezzo/") + strlen(fsetname)
- + 1 + strlen(name) + 1;
-
- PRESTO_ALLOC(path, len);
- if (path == NULL)
- return NULL;
-
- sprintf(path, "/.intermezzo/%s/%s", fsetname, name);
-
- return path;
-}
-
-char * izo_make_path(struct presto_file_set *fset, char *name)
-{
- return _izo_make_path(fset->fset_name, name);
-}
-
-static struct file *_izo_fset_open(char *fsetname, char *name, int flags, int mode)
-{
- char *path;
- struct file *f;
- int error;
- ENTRY;
-
- path = _izo_make_path(fsetname, name);
- if (path == NULL) {
- EXIT;
- return ERR_PTR(-ENOMEM);
- }
-
- CDEBUG(D_INODE, "opening file %s\n", path);
- f = filp_open(path, flags, mode);
- error = PTR_ERR(f);
- if (IS_ERR(f)) {
- CDEBUG(D_INODE, "Error %d\n", error);
- }
-
- PRESTO_FREE(path, strlen(path));
-
- EXIT;
- return f;
-
-}
-
-struct file *izo_fset_open(struct presto_file_set *fset, char *name, int flags, int mode)
-{
- return _izo_fset_open(fset->fset_name, name, flags, mode);
-}
-
-
-
-/*
- * note: this routine "pins" a dentry for a fileset root
- */
-int presto_set_fsetroot(struct dentry *ioctl_dentry, char *fsetname,
- unsigned int flags)
-{
- struct presto_file_set *fset = NULL;
- struct presto_cache *cache;
- int error;
- struct file *fset_root;
- struct dentry *dentry;
-
- ENTRY;
-
- fset_root = _izo_fset_open(fsetname, "ROOT", O_RDONLY, 000);
- if (IS_ERR(fset_root)) {
- CERROR("Can't open %s/ROOT\n", fsetname);
- EXIT;
- error = PTR_ERR(fset_root);
- goto out;
- }
- dentry = dget(fset_root->f_dentry);
- filp_close(fset_root, NULL);
-
- dentry->d_inode->i_op = ioctl_dentry->d_inode->i_op;
- dentry->d_inode->i_fop = ioctl_dentry->d_inode->i_fop;
- dentry->d_op = ioctl_dentry->d_op;
- fset = presto_dentry2fset(dentry);
- if (fset && (fset->fset_dentry == dentry) ) {
- CERROR("Fsetroot already set (inode %ld)\n",
- dentry->d_inode->i_ino);
- /* XXX: ignore because clear_fsetroot is broken */
-#if 0
- dput(dentry);
- EXIT;
- error = -EEXIST;
- goto out;
-#endif
- }
-
- cache = presto_get_cache(dentry->d_inode);
- if (!cache) {
- CERROR("No cache found for inode %ld\n",
- dentry->d_inode->i_ino);
- EXIT;
- error = -ENODEV;
- goto out_free;
- }
-
- PRESTO_ALLOC(fset, sizeof(*fset));
- if ( !fset ) {
- CERROR("No memory allocating fset for %s\n", fsetname);
- EXIT;
- error = -ENOMEM;
- goto out_free;
- }
- CDEBUG(D_INODE, "fset at %p\n", fset);
-
- CDEBUG(D_INODE, "InterMezzo: fsetroot: inode %ld, fileset name %s\n",
- dentry->d_inode->i_ino, fsetname);
-
- fset->fset_mnt = mntget(current->fs->pwdmnt);
- fset->fset_cache = cache;
- fset->fset_dentry = dentry;
- fset->fset_name = strdup(fsetname);
- fset->fset_chunkbits = CHUNK_BITS;
- fset->fset_flags = flags;
- fset->fset_file_maxio = FSET_DEFAULT_MAX_FILEIO;
- fset->fset_permit_lock = SPIN_LOCK_UNLOCKED;
- PRESTO_ALLOC(fset->fset_reint_buf, 64 * 1024);
- if (fset->fset_reint_buf == NULL) {
- EXIT;
- error = -ENOMEM;
- goto out_free;
- }
- init_waitqueue_head(&fset->fset_permit_queue);
-
- if (presto_d2d(dentry) == NULL) {
- dentry->d_fsdata = izo_alloc_ddata();
- }
- if (presto_d2d(dentry) == NULL) {
- CERROR("InterMezzo: %s: no memory\n", __FUNCTION__);
- EXIT;
- error = -ENOMEM;
- goto out_free;
- }
- presto_d2d(dentry)->dd_fset = fset;
- list_add(&fset->fset_list, &cache->cache_fset_list);
-
- error = izo_init_kml_file(fset, &fset->fset_kml);
- if ( error ) {
- EXIT;
- CDEBUG(D_JOURNAL, "Error init_kml %d\n", error);
- goto out_list_del;
- }
-
- error = izo_init_lml_file(fset, &fset->fset_lml);
- if ( error ) {
- int rc;
- EXIT;
- rc = izo_log_close(&fset->fset_kml);
- CDEBUG(D_JOURNAL, "Error init_lml %d, cleanup %d\n", error, rc);
- goto out_list_del;
- }
-
- /* init_last_rcvd_file could trigger a presto_file_write(), which
- * requires that the lml structure be initialized. -phil */
- error = izo_init_last_rcvd_file(fset, &fset->fset_rcvd);
- if ( error ) {
- int rc;
- EXIT;
- rc = izo_log_close(&fset->fset_kml);
- rc = izo_log_close(&fset->fset_lml);
- CDEBUG(D_JOURNAL, "Error init_lastrcvd %d, cleanup %d\n", error, rc);
- goto out_list_del;
- }
-
- CDEBUG(D_PIOCTL, "-------> fset at %p, dentry at %p, mtpt %p,"
- "fset %s, cache %p, presto_d2d(dentry)->dd_fset %p\n",
- fset, dentry, fset->fset_dentry, fset->fset_name, cache,
- presto_d2d(dentry)->dd_fset);
-
- EXIT;
- return 0;
-
- out_list_del:
- list_del(&fset->fset_list);
- presto_d2d(dentry)->dd_fset = NULL;
- out_free:
- if (fset) {
- mntput(fset->fset_mnt);
- if (fset->fset_reint_buf != NULL)
- PRESTO_FREE(fset->fset_reint_buf, 64 * 1024);
- PRESTO_FREE(fset, sizeof(*fset));
- }
- dput(dentry);
- out:
- return error;
-}
-
-static int izo_cleanup_fset(struct presto_file_set *fset)
-{
- int error;
- struct presto_cache *cache;
-
- ENTRY;
-
- CERROR("Cleaning up fset %s\n", fset->fset_name);
-
- error = izo_log_close(&fset->fset_kml);
- if (error)
- CERROR("InterMezzo: Closing kml for fset %s: %d\n",
- fset->fset_name, error);
- error = izo_log_close(&fset->fset_lml);
- if (error)
- CERROR("InterMezzo: Closing lml for fset %s: %d\n",
- fset->fset_name, error);
- error = izo_log_close(&fset->fset_rcvd);
- if (error)
- CERROR("InterMezzo: Closing last_rcvd for fset %s: %d\n",
- fset->fset_name, error);
-
- cache = fset->fset_cache;
-
- list_del(&fset->fset_list);
-
- presto_d2d(fset->fset_dentry)->dd_fset = NULL;
- dput(fset->fset_dentry);
- mntput(fset->fset_mnt);
-
- PRESTO_FREE(fset->fset_name, strlen(fset->fset_name) + 1);
- PRESTO_FREE(fset->fset_reint_buf, 64 * 1024);
- PRESTO_FREE(fset, sizeof(*fset));
- EXIT;
- return error;
-}
-
-int izo_clear_fsetroot(struct dentry *dentry)
-{
- struct presto_file_set *fset;
-
- ENTRY;
-
- fset = presto_dentry2fset(dentry);
- if (!fset) {
- EXIT;
- return -EINVAL;
- }
-
- izo_cleanup_fset(fset);
- EXIT;
- return 0;
-}
-
-int izo_clear_all_fsetroots(struct presto_cache *cache)
-{
- struct presto_file_set *fset;
- struct list_head *tmp,*tmpnext;
- int error;
-
- error = 0;
- tmp = &cache->cache_fset_list;
- tmpnext = tmp->next;
- while ( tmpnext != &cache->cache_fset_list) {
- tmp = tmpnext;
- tmpnext = tmp->next;
- fset = list_entry(tmp, struct presto_file_set, fset_list);
-
- error = izo_cleanup_fset(fset);
- if (error)
- break;
- }
- return error;
-}
-
-static struct vfsmount *izo_alloc_vfsmnt(void)
-{
- struct vfsmount *mnt;
- PRESTO_ALLOC(mnt, sizeof(*mnt));
- if (mnt) {
- memset(mnt, 0, sizeof(struct vfsmount));
- atomic_set(&mnt->mnt_count,1);
- INIT_LIST_HEAD(&mnt->mnt_hash);
- INIT_LIST_HEAD(&mnt->mnt_child);
- INIT_LIST_HEAD(&mnt->mnt_mounts);
- INIT_LIST_HEAD(&mnt->mnt_list);
- }
- return mnt;
-}
-
-
-static void izo_setup_ctxt(struct dentry *root, struct vfsmount *mnt,
- struct run_ctxt *save)
-{
- struct run_ctxt new;
-
- mnt->mnt_root = root;
- mnt->mnt_sb = root->d_inode->i_sb;
- unlock_super(mnt->mnt_sb);
-
- new.rootmnt = mnt;
- new.root = root;
- new.pwdmnt = mnt;
- new.pwd = root;
- new.fsuid = 0;
- new.fsgid = 0;
- new.fs = get_fs();
- /* XXX where can we get the groups from? */
- new.group_info = groups_alloc(0);
-
- push_ctxt(save, &new);
-}
-
-static void izo_cleanup_ctxt(struct vfsmount *mnt, struct run_ctxt *save)
-{
- lock_super(mnt->mnt_sb);
- pop_ctxt(save);
-}
-
-static int izo_simple_mkdir(struct dentry *dir, char *name, int mode)
-{
- struct dentry *dchild;
- int err;
- ENTRY;
-
- dchild = lookup_one_len(name, dir, strlen(name));
- if (IS_ERR(dchild)) {
- EXIT;
- return PTR_ERR(dchild);
- }
-
- if (dchild->d_inode) {
- dput(dchild);
- EXIT;
- return -EEXIST;
- }
-
- err = vfs_mkdir(dir->d_inode, dchild, mode);
- dput(dchild);
-
- EXIT;
- return err;
-}
-
-static int izo_simple_symlink(struct dentry *dir, char *name, char *tgt)
-{
- struct dentry *dchild;
- int err;
- ENTRY;
-
- dchild = lookup_one_len(name, dir, strlen(name));
- if (IS_ERR(dchild)) {
- EXIT;
- return PTR_ERR(dchild);
- }
-
- if (dchild->d_inode) {
- dput(dchild);
- EXIT;
- return -EEXIST;
- }
-
- err = vfs_symlink(dir->d_inode, dchild, tgt);
- dput(dchild);
-
- EXIT;
- return err;
-}
-
-/*
- * run set_fsetroot in chroot environment
- */
-int presto_set_fsetroot_from_ioc(struct dentry *root, char *fsetname,
- unsigned int flags)
-{
- int rc;
- struct presto_cache *cache;
- struct vfsmount *mnt;
- struct run_ctxt save;
-
- if (root != root->d_inode->i_sb->s_root) {
- CERROR ("IOC_SET_FSET must be called on mount point\n");
- return -ENODEV;
- }
-
- cache = presto_get_cache(root->d_inode);
- mnt = cache->cache_vfsmount;
- if (!mnt) {
- EXIT;
- return -ENOMEM;
- }
-
- izo_setup_ctxt(root, mnt, &save);
- rc = presto_set_fsetroot(root, fsetname, flags);
- izo_cleanup_ctxt(mnt, &save);
- return rc;
-}
-
-/* XXX: this function should detect if fsetname is already in use for
- the cache under root
-*/
-int izo_prepare_fileset(struct dentry *root, char *fsetname)
-{
- int err;
- struct dentry *dotizo = NULL, *fsetdir = NULL, *dotiopen = NULL;
- struct presto_cache *cache;
- struct vfsmount *mnt;
- struct run_ctxt save;
-
- cache = presto_get_cache(root->d_inode);
- mnt = cache->cache_vfsmount = izo_alloc_vfsmnt();
- if (!mnt) {
- EXIT;
- return -ENOMEM;
- }
-
- if (!fsetname)
- fsetname = "rootfset";
-
- izo_setup_ctxt(root, mnt, &save);
-
- err = izo_simple_mkdir(root, ".intermezzo", 0755);
- CDEBUG(D_CACHE, "mkdir on .intermezzo err %d\n", err);
-
- err = izo_simple_mkdir(root, "..iopen..", 0755);
- CDEBUG(D_CACHE, "mkdir on ..iopen.. err %d\n", err);
-
- dotiopen = lookup_one_len("..iopen..", root, strlen("..iopen.."));
- if (IS_ERR(dotiopen)) {
- EXIT;
- goto out;
- }
- dotiopen->d_inode->i_op = &presto_dir_iops;
- dput(dotiopen);
-
-
- dotizo = lookup_one_len(".intermezzo", root, strlen(".intermezzo"));
- if (IS_ERR(dotizo)) {
- EXIT;
- goto out;
- }
-
-
- err = izo_simple_mkdir(dotizo, fsetname, 0755);
- CDEBUG(D_CACHE, "mkdir err %d\n", err);
-
- /* XXX find the dentry of the root of the fileset (root for now) */
- fsetdir = lookup_one_len(fsetname, dotizo, strlen(fsetname));
- if (IS_ERR(fsetdir)) {
- EXIT;
- goto out;
- }
-
- err = izo_simple_symlink(fsetdir, "ROOT", "../..");
-
- /* XXX read flags from flags file */
- err = presto_set_fsetroot(root, fsetname, 0);
- CDEBUG(D_CACHE, "set_fsetroot err %d\n", err);
-
- out:
- if (dotizo && !IS_ERR(dotizo))
- dput(dotizo);
- if (fsetdir && !IS_ERR(fsetdir))
- dput(fsetdir);
- izo_cleanup_ctxt(mnt, &save);
- return err;
-}
-
-int izo_set_fileid(struct file *dir, struct izo_ioctl_data *data)
-{
- int rc = 0;
- struct presto_cache *cache;
- struct vfsmount *mnt;
- struct run_ctxt save;
- struct nameidata nd;
- struct dentry *dentry;
- struct presto_dentry_data *dd;
- struct dentry *root;
- char *buf = NULL;
-
- ENTRY;
-
-
- root = dir->f_dentry;
-
- /* actually, needs to be called on ROOT of fset, not mount point
- if (root != root->d_inode->i_sb->s_root) {
- CERROR ("IOC_SET_FSET must be called on mount point\n");
- return -ENODEV;
- }
- */
-
- cache = presto_get_cache(root->d_inode);
- mnt = cache->cache_vfsmount;
- if (!mnt) {
- EXIT;
- return -ENOMEM;
- }
-
- izo_setup_ctxt(root, mnt, &save);
-
- PRESTO_ALLOC(buf, data->ioc_plen1);
- if (!buf) {
- rc = -ENOMEM;
- EXIT;
- goto out;
- }
- if (copy_from_user(buf, data->ioc_pbuf1, data->ioc_plen1)) {
- rc = -EFAULT;
- EXIT;
- goto out;
- }
-
- rc = presto_walk(buf, &nd);
- if (rc) {
- CERROR("Unable to open: %s\n", buf);
- EXIT;
- goto out;
- }
- dentry = nd.dentry;
- if (!dentry) {
- CERROR("no dentry!\n");
- rc = -EINVAL;
- EXIT;
- goto out_close;
- }
- dd = presto_d2d(dentry);
- if (!dd) {
- CERROR("no dentry_data!\n");
- rc = -EINVAL;
- EXIT;
- goto out_close;
- }
-
- CDEBUG(D_FILE,"de:%p dd:%p\n", dentry, dd);
-
- if (dd->remote_ino != 0) {
- CERROR("remote_ino already set? %Lx:%Lx\n",
- (unsigned long long) dd->remote_ino,
- (unsigned long long) dd->remote_generation);
- rc = 0;
- EXIT;
- goto out_close;
- }
-
-
- CDEBUG(D_FILE,"setting %p %p, %s to %Lx:%Lx\n", dentry, dd,
- buf,
- (unsigned long long) data->ioc_ino,
- (unsigned long long) data->ioc_generation);
- dd->remote_ino = data->ioc_ino;
- dd->remote_generation = data->ioc_generation;
-
- EXIT;
- out_close:
- path_release(&nd);
- out:
- if (buf)
- PRESTO_FREE(buf, data->ioc_plen1);
- izo_cleanup_ctxt(mnt, &save);
- return rc;
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1996 Peter J. Braam <braam@maths.ox.ac.uk> and
- * Michael Callahan <callahan@maths.ox.ac.uk>
- * Copyright (C) 1999 Carnegie Mellon University
- * Rewritten for Linux 2.1. Peter Braam <braam@cs.cmu.edu>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Super block/filesystem wide operations
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <asm/segment.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-extern void presto_free_cache(struct presto_cache *);
-
-void presto_set_ops(struct inode *inode, struct filter_fs *filter)
-{
- ENTRY;
-
- if (!inode || is_bad_inode(inode))
- return;
-
- if (S_ISREG(inode->i_mode)) {
- if ( !filter_c2cfiops(filter) ) {
- filter_setup_file_ops(filter,
- inode, &presto_file_iops,
- &presto_file_fops);
- }
- inode->i_op = filter_c2ufiops(filter);
- inode->i_fop = filter_c2uffops(filter);
- CDEBUG(D_INODE, "set file methods for %ld to %p\n",
- inode->i_ino, inode->i_op);
- } else if (S_ISDIR(inode->i_mode)) {
- inode->i_op = filter_c2udiops(filter);
- inode->i_fop = filter_c2udfops(filter);
- CDEBUG(D_INODE, "set dir methods for %ld to %p ioctl %p\n",
- inode->i_ino, inode->i_op, inode->i_fop->ioctl);
- } else if (S_ISLNK(inode->i_mode)) {
- if ( !filter_c2csiops(filter)) {
- filter_setup_symlink_ops(filter,
- inode,
- &presto_sym_iops,
- &presto_sym_fops);
- }
- inode->i_op = filter_c2usiops(filter);
- inode->i_fop = filter_c2usfops(filter);
- CDEBUG(D_INODE, "set link methods for %ld to %p\n",
- inode->i_ino, inode->i_op);
- }
- EXIT;
-}
-
-void presto_read_inode(struct inode *inode)
-{
- struct presto_cache *cache;
-
- cache = presto_get_cache(inode);
- if ( !cache ) {
- CERROR("PRESTO: BAD, BAD: cannot find cache\n");
- make_bad_inode(inode);
- return ;
- }
-
- filter_c2csops(cache->cache_filter)->read_inode(inode);
-
- CDEBUG(D_INODE, "presto_read_inode: ino %ld, gid %d\n",
- inode->i_ino, inode->i_gid);
-
- presto_set_ops(inode, cache->cache_filter);
- /* XXX handle special inodes here or not - probably not? */
-}
-
-static void presto_put_super(struct super_block *sb)
-{
- struct presto_cache *cache;
- struct upc_channel *channel;
- struct super_operations *sops;
- struct list_head *lh;
- int err;
-
- ENTRY;
- cache = presto_cache_find(sb);
- if (!cache) {
- EXIT;
- goto exit;
- }
- channel = &izo_channels[presto_c2m(cache)];
- sops = filter_c2csops(cache->cache_filter);
- err = izo_clear_all_fsetroots(cache);
- if (err) {
- CERROR("%s: err %d\n", __FUNCTION__, err);
- }
- PRESTO_FREE(cache->cache_vfsmount, sizeof(struct vfsmount));
-
- /* look at kill_super - fsync_super is not exported GRRR but
- probably not needed */
- unlock_super(sb);
- shrink_dcache_parent(cache->cache_root);
- dput(cache->cache_root);
- //fsync_super(sb);
- lock_super(sb);
-
- if (sops->write_super)
- sops->write_super(sb);
-
- if (sops->put_super)
- sops->put_super(sb);
-
- /* free any remaining async upcalls when the filesystem is unmounted */
- spin_lock(&channel->uc_lock);
- lh = channel->uc_pending.next;
- while ( lh != &channel->uc_pending) {
- struct upc_req *req;
- req = list_entry(lh, struct upc_req, rq_chain);
-
- /* assignment must be here: we are about to free &lh */
- lh = lh->next;
- if ( ! (req->rq_flags & REQ_ASYNC) )
- continue;
- list_del(&(req->rq_chain));
- PRESTO_FREE(req->rq_data, req->rq_bufsize);
- PRESTO_FREE(req, sizeof(struct upc_req));
- }
- list_del(&cache->cache_channel_list);
- spin_unlock(&channel->uc_lock);
-
- presto_free_cache(cache);
-
-exit:
- CDEBUG(D_MALLOC, "after umount: kmem %ld, vmem %ld\n",
- presto_kmemory, presto_vmemory);
- return ;
-}
-
-struct super_operations presto_super_ops = {
- .read_inode = presto_read_inode,
- .put_super = presto_put_super,
-};
-
-
-/* symlinks can be chowned */
-struct inode_operations presto_sym_iops = {
- .setattr = presto_setattr
-};
-
-/* NULL for now */
-struct file_operations presto_sym_fops;
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- * Copyright (C) 2001 Tacitus Systems, Inc.
- * Copyright (C) 2000 Stelias Computing, Inc.
- * Copyright (C) 2000 Red Hat, Inc.
- * Copyright (C) 2000 TurboLinux, Inc.
- * Copyright (C) 2000 Los Alamos National Laboratory.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __INTERMEZZO_FS_H_
-#define __INTERMEZZO_FS_H_ 1
-
-#include "intermezzo_lib.h"
-#include "intermezzo_idl.h"
-
-
-#ifdef __KERNEL__
-typedef __u8 uuid_t[16];
-#else
-# include <uuid/uuid.h>
-#endif
-
-struct lento_vfs_context {
- __u64 kml_offset;
- struct timespec updated_time;
- __u64 remote_ino;
- __u64 remote_generation;
- __u32 slot_offset;
- __u32 recno;
- __u32 flags;
- uuid_t uuid;
- struct presto_version remote_version;
-};
-
-#ifdef __KERNEL__
-# include <linux/smp.h>
-# include <linux/fsfilter.h>
-# include <linux/mount.h>
-# include <linux/slab.h>
-# include <linux/vmalloc.h>
-# include <linux/smp_lock.h>
-
-/* fixups for fs.h */
-# ifndef fs_down
-# define fs_down(sem) down(sem)
-# endif
-
-# ifndef fs_up
-# define fs_up(sem) up(sem)
-# endif
-
-# define KML_IDLE 0
-# define KML_DECODE 1
-# define KML_OPTIMIZE 2
-# define KML_REINT 3
-
-# define KML_OPEN_REINT 0x0100
-# define KML_REINT_BEGIN 0x0200
-# define KML_BACKFETCH 0x0400
-# define KML_REINT_END 0x0800
-# define KML_CLOSE_REINT 0x1000
-# define KML_REINT_MAXBUF (64 * 1024)
-
-# define CACHE_CLIENT_RO 0x4
-# define CACHE_LENTO_RO 0x8
-
-/* global variables */
-extern int presto_debug;
-extern int presto_print_entry;
-extern long presto_kmemory;
-extern long presto_vmemory;
-
-# define PRESTO_DEBUG
-# ifdef PRESTO_DEBUG
-/* debugging masks */
-# define D_SUPER 1
-# define D_INODE 2
-# define D_FILE 4
-# define D_CACHE 8 /* cache debugging */
-# define D_MALLOC 16 /* print malloc, de-alloc information */
-# define D_JOURNAL 32
-# define D_UPCALL 64 /* up and downcall debugging */
-# define D_PSDEV 128
-# define D_PIOCTL 256
-# define D_SPECIAL 512
-# define D_TIMING 1024
-# define D_DOWNCALL 2048
-# define D_KML 4096
-# define D_FSDATA 8192
-
-# define CDEBUG(mask, format, a...) \
- do { \
- if (presto_debug & mask) { \
- printk("(%s:%s,l. %d %d): " format, __FILE__, \
- __FUNCTION__, __LINE__, current->pid \
- , ## a); \
- } \
- } while (0)
-
-#define CERROR(format, a...) \
-do { \
- printk("(%s:%s,l. %d %d): " format, __FILE__, __FUNCTION__, \
- __LINE__, current->pid , ## a); \
-} while (0)
-
-# define ENTRY \
- if (presto_print_entry) \
- printk("Process %d entered %s\n", current->pid, __FUNCTION__)
-
-# define EXIT \
- if (presto_print_entry) \
- printk("Process %d leaving %s at %d\n", current->pid, \
- __FUNCTION__, __LINE__)
-
-# define presto_kmem_inc(ptr, size) presto_kmemory += (size)
-# define presto_kmem_dec(ptr, size) presto_kmemory -= (size)
-# define presto_vmem_inc(ptr, size) presto_vmemory += (size)
-# define presto_vmem_dec(ptr, size) presto_vmemory -= (size)
-# else /* !PRESTO_DEBUG */
-# define CDEBUG(mask, format, a...) do {} while (0)
-# define ENTRY do {} while (0)
-# define EXIT do {} while (0)
-# define presto_kmem_inc(ptr, size) do {} while (0)
-# define presto_kmem_dec(ptr, size) do {} while (0)
-# define presto_vmem_inc(ptr, size) do {} while (0)
-# define presto_vmem_dec(ptr, size) do {} while (0)
-# endif /* PRESTO_DEBUG */
-
-
-struct run_ctxt {
- struct vfsmount *pwdmnt;
- struct dentry *pwd;
- struct vfsmount *rootmnt;
- struct dentry *root;
- uid_t fsuid;
- gid_t fsgid;
- mm_segment_t fs;
- struct group_info * group_info;
-/* int ngroups;
- gid_t groups[NGROUPS];*/
-
-};
-
-static inline void push_ctxt(struct run_ctxt *save, struct run_ctxt *new)
-{
- save->fs = get_fs();
- save->pwd = dget(current->fs->pwd);
- save->pwdmnt = mntget(current->fs->pwdmnt);
- save->fsgid = current->fsgid;
- save->fsuid = current->fsuid;
- save->root = current->fs->root;
- save->rootmnt = current->fs->rootmnt;
- save->group_info = current->group_info;
-/* save->ngroups = current->ngroups;
- for (i = 0; i< current->ngroups; i++)
- save->groups[i] = current->groups[i];*/
-
- set_fs(new->fs);
- lock_kernel();
- set_fs_pwd(current->fs, new->pwdmnt, new->pwd);
- if (new->root)
- set_fs_root(current->fs, new->rootmnt, new->root);
- unlock_kernel();
- current->fsuid = new->fsuid;
- current->fsgid = new->fsgid;
- /*if (new->ngroups > 0) {
- current->ngroups = new->ngroups;
- for (i = 0; i< new->ngroups; i++)
- current->groups[i] = new->groups[i];
- }*/
- current->group_info = new->group_info;
-
-}
-
-static inline void pop_ctxt(struct run_ctxt *saved)
-{
- set_fs(saved->fs);
- lock_kernel();
- set_fs_pwd(current->fs, saved->pwdmnt, saved->pwd);
- if (saved->root)
- set_fs_root(current->fs, saved->rootmnt, saved->root);
- unlock_kernel();
- current->fsuid = saved->fsuid;
- current->fsgid = saved->fsgid;
- current->group_info = saved->group_info;
-/*
- current->ngroups = saved->ngroups;
- for (i = 0; i< saved->ngroups; i++)
- current->groups[i] = saved->groups[i];
-*/
- mntput(saved->pwdmnt);
- dput(saved->pwd);
-}
-
-static inline struct presto_dentry_data *presto_d2d(struct dentry *dentry)
-{
- return (struct presto_dentry_data *)(dentry->d_fsdata);
-}
-
-struct presto_cache {
- spinlock_t cache_lock;
- loff_t cache_reserved;
- struct vfsmount *cache_vfsmount;
- struct super_block *cache_sb;
- struct dentry *cache_root;
- struct list_head cache_chain; /* for the dev/cache hash */
-
- int cache_flags;
-
- char *cache_type; /* filesystem type of cache */
- struct filter_fs *cache_filter;
-
- struct upc_channel *cache_psdev; /* points to channel used */
- struct list_head cache_channel_list;
- struct list_head cache_fset_list; /* filesets mounted in cache */
-};
-
-struct presto_log_fd {
- rwlock_t fd_lock;
- loff_t fd_offset; /* offset where next record should go */
- struct file *fd_file;
- int fd_truncating;
- unsigned int fd_recno; /* last recno written */
- struct list_head fd_reservations;
-};
-
-/* file sets */
-# define CHUNK_BITS 16
-
-struct presto_file_set {
- struct list_head fset_list;
- struct presto_log_fd fset_kml;
- struct presto_log_fd fset_lml;
- struct presto_log_fd fset_rcvd;
- struct list_head *fset_clients; /* cache of clients */
- struct dentry *fset_dentry;
- struct vfsmount *fset_mnt;
- struct presto_cache *fset_cache;
-
- unsigned int fset_lento_recno; /* last recno mentioned to lento */
- loff_t fset_lento_off; /* last offset mentioned to lento */
- loff_t fset_kml_logical_off; /* logical offset of kml file byte 0 */
- char * fset_name;
-
- int fset_flags;
- int fset_chunkbits;
- char *fset_reint_buf; /* temporary buffer holds kml during reint */
-
- spinlock_t fset_permit_lock;
- int fset_permit_count;
- int fset_permit_upcall_count;
- /* This queue is used both for processes waiting for the kernel to give
- * up the permit as well as processes waiting for the kernel to be given
- * the permit, depending on the state of FSET_HASPERMIT. */
- wait_queue_head_t fset_permit_queue;
-
- loff_t fset_file_maxio; /* writing more than this causes a close */
- unsigned long int kml_truncate_size;
-};
-
-/* This is the default number of bytes written before a close is recorded*/
-#define FSET_DEFAULT_MAX_FILEIO (1024<<10)
-
-struct dentry *presto_tmpfs_ilookup(struct inode *dir, struct dentry *dentry,
- ino_t ino, unsigned int generation);
-struct dentry *presto_iget_ilookup(struct inode *dir, struct dentry *dentry,
- ino_t ino, unsigned int generation);
-struct dentry *presto_add_ilookup_dentry(struct dentry *parent,
- struct dentry *real);
-
-struct journal_ops {
- int (*tr_all_data)(struct inode *);
- loff_t (*tr_avail)(struct presto_cache *fset, struct super_block *);
- void *(*tr_start)(struct presto_file_set *, struct inode *, int op);
- void (*tr_commit)(struct presto_file_set *, void *handle);
- void (*tr_journal_data)(struct inode *);
- struct dentry *(*tr_ilookup)(struct inode *dir, struct dentry *dentry, ino_t ino, unsigned int generation);
- struct dentry *(*tr_add_ilookup)(struct dentry *parent, struct dentry *real);
-};
-
-extern struct journal_ops presto_ext2_journal_ops;
-extern struct journal_ops presto_ext3_journal_ops;
-extern struct journal_ops presto_tmpfs_journal_ops;
-extern struct journal_ops presto_xfs_journal_ops;
-extern struct journal_ops presto_reiserfs_journal_ops;
-extern struct journal_ops presto_obdfs_journal_ops;
-
-# define LENTO_FL_KML 0x0001
-# define LENTO_FL_EXPECT 0x0002
-# define LENTO_FL_VFSCHECK 0x0004
-# define LENTO_FL_JUSTLOG 0x0008
-# define LENTO_FL_WRITE_KML 0x0010
-# define LENTO_FL_CANCEL_LML 0x0020
-# define LENTO_FL_WRITE_EXPECT 0x0040
-# define LENTO_FL_IGNORE_TIME 0x0080
-# define LENTO_FL_TOUCH_PARENT 0x0100
-# define LENTO_FL_TOUCH_NEWOBJ 0x0200
-# define LENTO_FL_SET_DDFILEID 0x0400
-
-struct presto_cache *presto_get_cache(struct inode *inode);
-int presto_sprint_mounts(char *buf, int buflen, int minor);
-struct presto_file_set *presto_fset(struct dentry *de);
-int presto_journal(struct dentry *dentry, char *buf, size_t size);
-int presto_fwrite(struct file *file, const char *str, int len, loff_t *off);
-int presto_ispresto(struct inode *);
-
-/* super.c */
-extern struct file_system_type presto_fs_type;
-extern int init_intermezzo_fs(void);
-
-/* fileset.c */
-extern int izo_prepare_fileset(struct dentry *root, char *fsetname);
-char * izo_make_path(struct presto_file_set *fset, char *name);
-struct file *izo_fset_open(struct presto_file_set *fset, char *name, int flags, int mode);
-
-/* psdev.c */
-int izo_psdev_get_free_channel(void);
-int presto_psdev_init(void);
-int izo_psdev_setpid(int minor);
-extern void presto_psdev_cleanup(void);
-int presto_lento_up(int minor);
-int izo_psdev_setchannel(struct file *file, int fd);
-
-/* inode.c */
-extern struct super_operations presto_super_ops;
-void presto_set_ops(struct inode *inode, struct filter_fs *filter);
-
-/* dcache.c */
-void presto_frob_dop(struct dentry *de);
-char *presto_path(struct dentry *dentry, struct dentry *root,
- char *buffer, int buflen);
-struct presto_dentry_data *izo_alloc_ddata(void);
-int presto_set_dd(struct dentry *);
-int presto_init_ddata_cache(void);
-void presto_cleanup_ddata_cache(void);
-extern struct dentry_operations presto_dentry_ops;
-
-/* dir.c */
-extern struct inode_operations presto_dir_iops;
-extern struct inode_operations presto_file_iops;
-extern struct inode_operations presto_sym_iops;
-extern struct file_operations presto_dir_fops;
-extern struct file_operations presto_file_fops;
-extern struct file_operations presto_sym_fops;
-int presto_setattr(struct dentry *de, struct iattr *iattr);
-int presto_settime(struct presto_file_set *fset, struct dentry *newobj,
- struct dentry *parent, struct dentry *target,
- struct lento_vfs_context *ctx, int valid);
-int presto_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-
-extern int presto_ilookup_uid;
-# define PRESTO_ILOOKUP_MAGIC "...ino:"
-# define PRESTO_ILOOKUP_SEP ':'
-int izo_dentry_is_ilookup(struct dentry *, ino_t *id, unsigned int *generation);
-struct dentry *presto_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd);
-
-struct presto_dentry_data {
- int dd_count; /* how mnay dentries are using this dentry */
- struct presto_file_set *dd_fset;
- struct dentry *dd_inodentry;
- loff_t dd_kml_offset;
- int dd_flags;
- __u64 remote_ino;
- __u64 remote_generation;
-};
-
-struct presto_file_data {
- int fd_do_lml;
- loff_t fd_lml_offset;
- size_t fd_bytes_written;
- /* authorization related data of file at open time */
- uid_t fd_uid;
- gid_t fd_gid;
- mode_t fd_mode;
- /* identification data of calling process */
- uid_t fd_fsuid;
- gid_t fd_fsgid;
- int fd_ngroups;
- gid_t fd_groups[NGROUPS_SMALL];
- /* information how to complete the close operation */
- struct lento_vfs_context fd_info;
- struct presto_version fd_version;
-};
-
-/* presto.c and Lento::Downcall */
-
-int presto_walk(const char *name, struct nameidata *nd);
-int izo_clear_fsetroot(struct dentry *dentry);
-int izo_clear_all_fsetroots(struct presto_cache *cache);
-int presto_get_kmlsize(char *path, __u64 *size);
-int presto_get_lastrecno(char *path, off_t *size);
-int presto_set_fsetroot(struct dentry *dentry, char *fsetname,
- unsigned int flags);
-int presto_set_fsetroot_from_ioc(struct dentry *dentry, char *fsetname,
- unsigned int flags);
-int presto_is_read_only(struct presto_file_set *);
-int presto_truncate_lml(struct presto_file_set *fset);
-int lento_write_lml(char *path,
- __u64 remote_ino,
- __u32 remote_generation,
- __u32 remote_version,
- struct presto_version *remote_file_version);
-int lento_complete_closes(char *path);
-int presto_f2m(struct presto_file_set *fset);
-int presto_prep(struct dentry *, struct presto_cache **,
- struct presto_file_set **);
-/* cache.c */
-extern struct presto_cache *presto_cache_init(void);
-extern void presto_cache_add(struct presto_cache *cache);
-extern void presto_cache_init_hash(void);
-
-struct presto_cache *presto_cache_find(struct super_block *sb);
-
-#define PRESTO_REQLOW (3 * 4096)
-#define PRESTO_REQHIGH (6 * 4096)
-void presto_release_space(struct presto_cache *cache, loff_t req);
-int presto_reserve_space(struct presto_cache *cache, loff_t req);
-
-#define PRESTO_DATA 0x00000002 /* cached data is valid */
-#define PRESTO_ATTR 0x00000004 /* attributes cached */
-#define PRESTO_DONT_JOURNAL 0x00000008 /* things like .intermezzo/ */
-
-struct presto_file_set *presto_path2fileset(const char *name);
-int izo_revoke_permit(struct dentry *, uuid_t uuid);
-int presto_chk(struct dentry *dentry, int flag);
-void presto_set(struct dentry *dentry, int flag);
-int presto_get_permit(struct inode *inode);
-int presto_put_permit(struct inode *inode);
-int presto_set_max_kml_size(const char *path, unsigned long max_size);
-int izo_mark_dentry(struct dentry *dentry, int and, int or, int *res);
-int izo_mark_cache(struct dentry *dentry, int and_bits, int or_bits, int *);
-int izo_mark_fset(struct dentry *dentry, int and_bits, int or_bits, int *);
-void presto_getversion(struct presto_version *pv, struct inode *inode);
-int presto_i2m(struct inode *inode);
-int presto_c2m(struct presto_cache *cache);
-
-
-/* file.c */
-int izo_purge_file(struct presto_file_set *fset, char *file);
-int presto_adjust_lml(struct file *file, struct lento_vfs_context *info);
-
-/* journal.c */
-struct rec_info {
- loff_t offset;
- int size;
- int recno;
- int is_kml;
-};
-
-void presto_trans_commit(struct presto_file_set *fset, void *handle);
-void *presto_trans_start(struct presto_file_set *fset, struct inode *inode,
- int op);
-int presto_fread(struct file *file, char *str, int len, loff_t *off);
-int presto_clear_lml_close(struct presto_file_set *fset,
- loff_t lml_offset);
-int presto_complete_lml(struct presto_file_set *fset);
-int presto_read_kml_logical_offset(struct rec_info *recinfo,
- struct presto_file_set *fset);
-int presto_write_kml_logical_offset(struct presto_file_set *fset);
-struct file *presto_copy_kml_tail(struct presto_file_set *fset,
- unsigned long int start);
-int presto_finish_kml_truncate(struct presto_file_set *fset,
- unsigned long int offset);
-int izo_lookup_file(struct presto_file_set *fset, char *path,
- struct nameidata *nd);
-int izo_do_truncate(struct presto_file_set *fset, struct dentry *dentry,
- loff_t length, loff_t size_check);
-int izo_log_close(struct presto_log_fd *logfd);
-struct file *izo_log_open(struct presto_file_set *fset, char *name, int flags);
-int izo_init_kml_file(struct presto_file_set *, struct presto_log_fd *);
-int izo_init_lml_file(struct presto_file_set *, struct presto_log_fd *);
-int izo_init_last_rcvd_file(struct presto_file_set *, struct presto_log_fd *);
-
-/* vfs.c */
-
-/* Extra data needed in the KML for rollback operations; this structure is
- * passed around during the KML-writing process. */
-struct izo_rollback_data {
- __u32 rb_mode;
- __u32 rb_rdev;
- __u64 rb_uid;
- __u64 rb_gid;
-};
-
-int presto_write_last_rcvd(struct rec_info *recinfo,
- struct presto_file_set *fset,
- struct lento_vfs_context *info);
-void izo_get_rollback_data(struct inode *inode, struct izo_rollback_data *rb);
-int presto_do_close(struct presto_file_set *fset, struct file *file);
-int presto_do_setattr(struct presto_file_set *fset, struct dentry *dentry,
- struct iattr *iattr, struct lento_vfs_context *info);
-int presto_do_create(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, int mode,
- struct lento_vfs_context *info);
-int presto_do_link(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *old_dentry, struct dentry *new_dentry,
- struct lento_vfs_context *info);
-int presto_do_unlink(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, struct lento_vfs_context *info);
-int presto_do_symlink(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, const char *name,
- struct lento_vfs_context *info);
-int presto_do_mkdir(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, int mode,
- struct lento_vfs_context *info);
-int presto_do_rmdir(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, struct lento_vfs_context *info);
-int presto_do_mknod(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, int mode, dev_t dev,
- struct lento_vfs_context *info);
-int do_rename(struct presto_file_set *fset, struct dentry *old_dir,
- struct dentry *old_dentry, struct dentry *new_dir,
- struct dentry *new_dentry, struct lento_vfs_context *info);
-int presto_do_statfs (struct presto_file_set *fset,
- struct kstatfs * buf);
-
-int lento_setattr(const char *name, struct iattr *iattr,
- struct lento_vfs_context *info);
-int lento_create(const char *name, int mode, struct lento_vfs_context *info);
-int lento_link(const char *oldname, const char *newname,
- struct lento_vfs_context *info);
-int lento_unlink(const char *name, struct lento_vfs_context *info);
-int lento_symlink(const char *oldname,const char *newname,
- struct lento_vfs_context *info);
-int lento_mkdir(const char *name, int mode, struct lento_vfs_context *info);
-int lento_rmdir(const char *name, struct lento_vfs_context *info);
-int lento_mknod(const char *name, int mode, dev_t dev,
- struct lento_vfs_context *info);
-int lento_rename(const char *oldname, const char *newname,
- struct lento_vfs_context *info);
-int lento_iopen(const char *name, ino_t ino, unsigned int generation,int flags);
-
-/* journal.c */
-
-#define JOURNAL_PAGE_SZ PAGE_SIZE
-
-int presto_no_journal(struct presto_file_set *fset);
-int journal_fetch(int minor);
-int presto_log(struct presto_file_set *fset, struct rec_info *rec,
- const char *buf, size_t size,
- const char *string1, int len1,
- const char *string2, int len2,
- const char *string3, int len3);
-int presto_get_fileid(int minor, struct presto_file_set *fset,
- struct dentry *dentry);
-int presto_journal_setattr(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry, struct presto_version *old_ver,
- struct izo_rollback_data *, struct iattr *iattr);
-int presto_journal_create(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_file_ver, int mode);
-int presto_journal_link(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *src, struct dentry *tgt,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_link_ver);
-int presto_journal_unlink(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dir,
- struct presto_version *tgt_dir_ver,
- struct presto_version *old_file_ver,
- struct izo_rollback_data *, struct dentry *dentry,
- char *old_target, int old_targetlen);
-int presto_journal_symlink(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry, const char *target,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_link_ver);
-int presto_journal_mkdir(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_dir_ver, int mode);
-int presto_journal_rmdir(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry,
- struct presto_version *tgt_dir_ver,
- struct presto_version *old_dir_ver,
- struct izo_rollback_data *, int len, const char *name);
-int presto_journal_mknod(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_node_ver, int mode,
- int dmajor, int dminor);
-int presto_journal_rename(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *src, struct dentry *tgt,
- struct presto_version *src_dir_ver,
- struct presto_version *tgt_dir_ver);
-int presto_journal_open(struct rec_info *, struct presto_file_set *,
- struct dentry *, struct presto_version *old_ver);
-int presto_journal_close(struct rec_info *rec, struct presto_file_set *,
- struct presto_file_data *, struct dentry *,
- struct presto_version *old_file_ver,
- struct presto_version *new_file_ver);
-int presto_write_lml_close(struct rec_info *rec,
- struct presto_file_set *fset,
- struct file *file,
- __u64 remote_ino,
- __u64 remote_generation,
- struct presto_version *remote_version,
- struct presto_version *new_file_ver);
-void presto_log_op(void *data, int len);
-loff_t presto_kml_offset(struct presto_file_set *fset);
-
-/* upcall.c */
-#define SYNCHRONOUS 0
-#define ASYNCHRONOUS 1
-/* asynchronous calls */
-int izo_upc_kml(int minor, __u64 offset, __u32 first_recno, __u64 length,
- __u32 last_recno, char *fsetname);
-int izo_upc_kml_truncate(int minor, __u64 length, __u32 last_recno,
- char *fsetname);
-int izo_upc_go_fetch_kml(int minor, char *fsetname, uuid_t uuid, __u64 kmlsize);
-int izo_upc_backfetch(int minor, char *path, char *fileset,
- struct lento_vfs_context *);
-
-/* synchronous calls */
-int izo_upc_get_fileid(int minor, __u32 reclen, char *rec,
- __u32 pathlen, char *path, char *fsetname);
-int izo_upc_permit(int minor, struct dentry *, __u32 pathlen, char *path,
- char *fset);
-int izo_upc_open(int minor, __u32 pathlen, char *path, char *fsetname,
- struct lento_vfs_context *info);
-int izo_upc_connect(int minor, __u64 ip_address, __u64 port, __u8 uuid[16],
- int client_flag);
-int izo_upc_revoke_permit(int minor, char *fsetname, uuid_t uuid);
-int izo_upc_set_kmlsize(int minor, char *fsetname, uuid_t uuid, __u64 kmlsize);
-int izo_upc_client_make_branch(int minor, char *fsetname);
-int izo_upc_server_make_branch(int minor, char *fsetname);
-int izo_upc_branch_undo(int minor, char *fsetname, char *branchname);
-int izo_upc_branch_redo(int minor, char *fsetname, char *branchname);
-int izo_upc_repstatus(int minor, char * fsetname, struct izo_rcvd_rec *lr_server);
-
-/* general mechanism */
-int izo_upc_upcall(int minor, int *size, struct izo_upcall_hdr *, int async);
-
-/* replicator.c */
-int izo_repstatus(struct presto_file_set *fset, __u64 client_kmlsize,
- struct izo_rcvd_rec *lr_client, struct izo_rcvd_rec *lr_server);
-int izo_rep_cache_init(struct presto_file_set *);
-loff_t izo_rcvd_get(struct izo_rcvd_rec *, struct presto_file_set *, char *uuid);
-loff_t izo_rcvd_write(struct presto_file_set *, struct izo_rcvd_rec *);
-loff_t izo_rcvd_upd_remote(struct presto_file_set *fset, char * uuid, __u64 remote_recno,
- __u64 remote_offset);
-
-int izo_ioctl_packlen(struct izo_ioctl_data *data);
-
-/* sysctl.c */
-int init_intermezzo_sysctl(void);
-void cleanup_intermezzo_sysctl(void);
-
-/* ext_attr.c */
-/* We will be more tolerant than the default ea patch with attr name sizes and
- * the size of value. If these come via VFS from the default ea patches, the
- * corresponding character strings will be truncated anyway. During journalling- * we journal length for both name and value. See journal_set_ext_attr.
- */
-#define PRESTO_EXT_ATTR_NAME_MAX 128
-#define PRESTO_EXT_ATTR_VALUE_MAX 8192
-
-#define PRESTO_ALLOC(ptr, size) \
-do { \
- long s = (size); \
- (ptr) = kmalloc(s, GFP_KERNEL); \
- if ((ptr) == NULL) \
- CERROR("IZO: out of memory at %s:%d (trying to " \
- "allocate %ld)\n", __FILE__, __LINE__, s); \
- else { \
- presto_kmem_inc((ptr), s); \
- memset((ptr), 0, s); \
- } \
- CDEBUG(D_MALLOC, "kmalloced: %ld at %p (tot %ld).\n", \
- s, (ptr), presto_kmemory); \
-} while (0)
-
-#define PRESTO_FREE(ptr, size) \
-do { \
- long s = (size); \
- if ((ptr) == NULL) { \
- CERROR("IZO: free NULL pointer (%ld bytes) at " \
- "%s:%d\n", s, __FILE__, __LINE__); \
- break; \
- } \
- kfree(ptr); \
- CDEBUG(D_MALLOC, "kfreed: %ld at %p (tot %ld).\n", \
- s, (ptr), presto_kmemory); \
- presto_kmem_dec((ptr), s); \
-} while (0)
-
-static inline int dentry_name_cmp(struct dentry *dentry, char *name)
-{
- return (strlen(name) == dentry->d_name.len &&
- memcmp(name, dentry->d_name.name, dentry->d_name.len) == 0);
-}
-
-static inline char *strdup(char *str)
-{
- char *tmp;
- tmp = kmalloc(strlen(str) + 1, GFP_KERNEL);
- if (tmp)
- memcpy(tmp, str, strlen(str) + 1);
-
- return tmp;
-}
-
-static inline int izo_ioctl_is_invalid(struct izo_ioctl_data *data)
-{
- if (data->ioc_len > (1<<30)) {
- CERROR("IZO ioctl: ioc_len larger than 1<<30\n");
- return 1;
- }
- if (data->ioc_inllen1 > (1<<30)) {
- CERROR("IZO ioctl: ioc_inllen1 larger than 1<<30\n");
- return 1;
- }
- if (data->ioc_inllen2 > (1<<30)) {
- CERROR("IZO ioctl: ioc_inllen2 larger than 1<<30\n");
- return 1;
- }
- if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
- CERROR("IZO ioctl: inlbuf1 pointer but 0 length\n");
- return 1;
- }
- if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
- CERROR("IZO ioctl: inlbuf2 pointer but 0 length\n");
- return 1;
- }
- if (data->ioc_pbuf1 && !data->ioc_plen1) {
- CERROR("IZO ioctl: pbuf1 pointer but 0 length\n");
- return 1;
- }
- if (data->ioc_pbuf2 && !data->ioc_plen2) {
- CERROR("IZO ioctl: pbuf2 pointer but 0 length\n");
- return 1;
- }
- if (izo_ioctl_packlen(data) != data->ioc_len ) {
- CERROR("IZO ioctl: packlen exceeds ioc_len\n");
- return 1;
- }
- if (data->ioc_inllen1 &&
- data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
- CERROR("IZO ioctl: inlbuf1 not 0 terminated\n");
- return 1;
- }
- if (data->ioc_inllen2 &&
- data->ioc_bulk[size_round(data->ioc_inllen1) + data->ioc_inllen2
- - 1] != '\0') {
- CERROR("IZO ioctl: inlbuf2 not 0 terminated\n");
- return 1;
- }
- return 0;
-}
-
-/* buffer MUST be at least the size of izo_ioctl_hdr */
-static inline int izo_ioctl_getdata(char *buf, char *end, void *arg)
-{
- struct izo_ioctl_hdr *hdr;
- struct izo_ioctl_data *data;
- int err;
- ENTRY;
-
- hdr = (struct izo_ioctl_hdr *)buf;
- data = (struct izo_ioctl_data *)buf;
-
- err = copy_from_user(buf, (void *)arg, sizeof(*hdr));
- if ( err ) {
- EXIT;
- return err;
- }
-
- if (hdr->ioc_version != IZO_IOCTL_VERSION) {
- CERROR("IZO: version mismatch kernel vs application\n");
- return -EINVAL;
- }
-
- if (hdr->ioc_len + buf >= end) {
- CERROR("IZO: user buffer exceeds kernel buffer\n");
- return -EINVAL;
- }
-
- if (hdr->ioc_len < sizeof(struct izo_ioctl_data)) {
- CERROR("IZO: user buffer too small for ioctl\n");
- return -EINVAL;
- }
-
- err = copy_from_user(buf, (void *)arg, hdr->ioc_len);
- if ( err ) {
- EXIT;
- return err;
- }
-
- if (izo_ioctl_is_invalid(data)) {
- CERROR("IZO: ioctl not correctly formatted\n");
- return -EINVAL;
- }
-
- if (data->ioc_inllen1) {
- data->ioc_inlbuf1 = &data->ioc_bulk[0];
- }
-
- if (data->ioc_inllen2) {
- data->ioc_inlbuf2 = &data->ioc_bulk[0] +
- size_round(data->ioc_inllen1);
- }
-
- EXIT;
- return 0;
-}
-
-# define MYPATHLEN(buffer, path) ((buffer) + PAGE_SIZE - (path))
-
-# define free kfree
-# define malloc(a) kmalloc(a, GFP_KERNEL)
-# define printf printk
-int kml_reint_rec(struct file *dir, struct izo_ioctl_data *data);
-int izo_get_fileid(struct file *dir, struct izo_ioctl_data *data);
-int izo_set_fileid(struct file *dir, struct izo_ioctl_data *data);
-
-#else /* __KERNEL__ */
-# include <stdlib.h>
-# include <stdio.h>
-# include <sys/types.h>
-# include <sys/ioctl.h>
-# include <string.h>
-
-# define printk printf
-# ifndef CERROR
-# define CERROR printf
-# endif
-# define kmalloc(a,b) malloc(a)
-
-void init_fsreintdata (void);
-int kml_fsreint(struct kml_rec *rec, char *basedir);
-int kml_iocreint(__u32 size, char *ptr, __u32 offset, int dird,
- uuid_t uuid, __u32 generate_kml);
-
-static inline void izo_ioctl_init(struct izo_ioctl_data *data)
-{
- memset(data, 0, sizeof(*data));
- data->ioc_len = sizeof(*data);
- data->ioc_version = IZO_IOCTL_VERSION;
-}
-
-static inline int
-izo_ioctl_pack(struct izo_ioctl_data *data, char **pbuf, int max)
-{
- char *ptr;
- struct izo_ioctl_data *overlay;
- data->ioc_len = izo_ioctl_packlen(data);
- data->ioc_version = IZO_IOCTL_VERSION;
-
- if (*pbuf && izo_ioctl_packlen(data) > max)
- return 1;
- if (*pbuf == NULL)
- *pbuf = malloc(data->ioc_len);
- if (*pbuf == NULL)
- return 1;
- overlay = (struct izo_ioctl_data *)*pbuf;
- memcpy(*pbuf, data, sizeof(*data));
-
- ptr = overlay->ioc_bulk;
- if (data->ioc_inlbuf1)
- LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
- if (data->ioc_inlbuf2)
- LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
- if (izo_ioctl_is_invalid(overlay))
- return 1;
-
- return 0;
-}
-
-#endif /* __KERNEL__*/
-
-#define IZO_ERROR_NAME 1
-#define IZO_ERROR_UPDATE 2
-#define IZO_ERROR_DELETE 3
-#define IZO_ERROR_RENAME 4
-
-static inline char *izo_error(int err)
-{
-#ifndef __KERNEL__
- if (err <= 0)
- return strerror(-err);
-#endif
- switch (err) {
- case IZO_ERROR_NAME:
- return "InterMezzo name/name conflict";
- case IZO_ERROR_UPDATE:
- return "InterMezzo update/update conflict";
- case IZO_ERROR_DELETE:
- return "InterMezzo update/delete conflict";
- case IZO_ERROR_RENAME:
- return "InterMezzo rename/rename conflict";
- }
- return "Unknown InterMezzo error";
-}
-
-/* kml_unpack.c */
-char *kml_print_rec(struct kml_rec *rec, int brief);
-int kml_unpack(struct kml_rec *rec, char **buf, char *end);
-
-/* fs 2.5 compat */
-
-/* is_read_only() is replaced by bdev_read_only which takes struct
- block_device *. Since this is only needed for debugging, it can be
- safely ignored now.
-*/
-#define is_read_only(dev) 0
-
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- * Copyright (C) 2001 Tacit Networks, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __INTERMEZZO_IDL_H__
-#define __INTERMEZZO_IDL_H__
-
-#include <linux/ioctl.h>
-#include <linux/types.h>
-
-/* this file contains all data structures used in InterMezzo's interfaces:
- * - upcalls
- * - ioctl's
- * - KML records
- * - RCVD records
- * - rpc's
- */
-
-/* UPCALL */
-#define INTERMEZZO_MINOR 248
-
-
-#define IZO_UPC_VERSION 0x00010002
-#define IZO_UPC_PERMIT 1
-#define IZO_UPC_CONNECT 2
-#define IZO_UPC_GO_FETCH_KML 3
-#define IZO_UPC_OPEN 4
-#define IZO_UPC_REVOKE_PERMIT 5
-#define IZO_UPC_KML 6
-#define IZO_UPC_BACKFETCH 7
-#define IZO_UPC_KML_TRUNC 8
-#define IZO_UPC_SET_KMLSIZE 9
-#define IZO_UPC_BRANCH_UNDO 10
-#define IZO_UPC_BRANCH_REDO 11
-#define IZO_UPC_GET_FILEID 12
-#define IZO_UPC_CLIENT_MAKE_BRANCH 13
-#define IZO_UPC_SERVER_MAKE_BRANCH 14
-#define IZO_UPC_REPSTATUS 15
-
-#define IZO_UPC_LARGEST_OPCODE 15
-
-struct izo_upcall_hdr {
- __u32 u_len;
- __u32 u_version;
- __u32 u_opc;
- __u32 u_uniq;
- __u32 u_pid;
- __u32 u_uid;
- __u32 u_pathlen;
- __u32 u_fsetlen;
- __u64 u_offset;
- __u64 u_length;
- __u32 u_first_recno;
- __u32 u_last_recno;
- __u32 u_async;
- __u32 u_reclen;
- __u8 u_uuid[16];
-};
-
-/* This structure _must_ sit at the beginning of the buffer */
-struct izo_upcall_resp {
- __u32 opcode;
- __u32 unique;
- __u32 result;
-};
-
-
-/* IOCTL */
-
-#define IZO_IOCTL_VERSION 0x00010003
-
-/* maximum size supported for ioc_pbuf1 */
-#define KML_MAX_BUF (64*1024)
-
-struct izo_ioctl_hdr {
- __u32 ioc_len;
- __u32 ioc_version;
-};
-
-struct izo_ioctl_data {
- __u32 ioc_len;
- __u32 ioc_version;
- __u32 ioc_izodev;
- __u32 ioc_kmlrecno;
- __u64 ioc_kmlsize;
- __u32 ioc_flags;
- __s32 ioc_inofd;
- __u64 ioc_ino;
- __u64 ioc_generation;
- __u32 ioc_mark_what;
- __u32 ioc_and_flag;
- __u32 ioc_or_flag;
- __u32 ioc_dev;
- __u32 ioc_offset;
- __u32 ioc_slot;
- __u64 ioc_uid;
- __u8 ioc_uuid[16];
-
- __u32 ioc_inllen1; /* path */
- char *ioc_inlbuf1;
- __u32 ioc_inllen2; /* fileset */
- char *ioc_inlbuf2;
-
- __u32 ioc_plen1; /* buffers in user space (KML) */
- char *ioc_pbuf1;
- __u32 ioc_plen2; /* buffers in user space (KML) */
- char *ioc_pbuf2;
-
- char ioc_bulk[0];
-};
-
-#define IZO_IOC_DEVICE _IOW ('p',0x50, void *)
-#define IZO_IOC_REINTKML _IOW ('p',0x51, void *)
-#define IZO_IOC_GET_RCVD _IOW ('p',0x52, void *)
-#define IZO_IOC_SET_IOCTL_UID _IOW ('p',0x53, void *)
-#define IZO_IOC_GET_KML_SIZE _IOW ('p',0x54, void *)
-#define IZO_IOC_PURGE_FILE_DATA _IOW ('p',0x55, void *)
-#define IZO_IOC_CONNECT _IOW ('p',0x56, void *)
-#define IZO_IOC_GO_FETCH_KML _IOW ('p',0x57, void *)
-#define IZO_IOC_MARK _IOW ('p',0x58, void *)
-#define IZO_IOC_CLEAR_FSET _IOW ('p',0x59, void *)
-#define IZO_IOC_CLEAR_ALL_FSETS _IOW ('p',0x60, void *)
-#define IZO_IOC_SET_FSET _IOW ('p',0x61, void *)
-#define IZO_IOC_REVOKE_PERMIT _IOW ('p',0x62, void *)
-#define IZO_IOC_SET_KMLSIZE _IOW ('p',0x63, void *)
-#define IZO_IOC_CLIENT_MAKE_BRANCH _IOW ('p',0x64, void *)
-#define IZO_IOC_SERVER_MAKE_BRANCH _IOW ('p',0x65, void *)
-#define IZO_IOC_BRANCH_UNDO _IOW ('p',0x66, void *)
-#define IZO_IOC_BRANCH_REDO _IOW ('p',0x67, void *)
-#define IZO_IOC_SET_PID _IOW ('p',0x68, void *)
-#define IZO_IOC_SET_CHANNEL _IOW ('p',0x69, void *)
-#define IZO_IOC_GET_CHANNEL _IOW ('p',0x70, void *)
-#define IZO_IOC_GET_FILEID _IOW ('p',0x71, void *)
-#define IZO_IOC_ADJUST_LML _IOW ('p',0x72, void *)
-#define IZO_IOC_SET_FILEID _IOW ('p',0x73, void *)
-#define IZO_IOC_REPSTATUS _IOW ('p',0x74, void *)
-
-/* marking flags for fsets */
-#define FSET_CLIENT_RO 0x00000001
-#define FSET_LENTO_RO 0x00000002
-#define FSET_HASPERMIT 0x00000004 /* we have a permit to WB */
-#define FSET_INSYNC 0x00000008 /* this fileset is in sync */
-#define FSET_PERMIT_WAITING 0x00000010 /* Lento is waiting for permit */
-#define FSET_STEAL_PERMIT 0x00000020 /* take permit if Lento is dead */
-#define FSET_JCLOSE_ON_WRITE 0x00000040 /* Journal closes on writes */
-#define FSET_DATA_ON_DEMAND 0x00000080 /* update data on file_open() */
-#define FSET_PERMIT_EXCLUSIVE 0x00000100 /* only one permitholder allowed */
-#define FSET_HAS_BRANCHES 0x00000200 /* this fileset contains branches */
-#define FSET_IS_BRANCH 0x00000400 /* this fileset is a branch */
-#define FSET_FLAT_BRANCH 0x00000800 /* this fileset is ROOT with branches */
-
-/* what to mark indicator (ioctl parameter) */
-#define MARK_DENTRY 101
-#define MARK_FSET 102
-#define MARK_CACHE 103
-#define MARK_GETFL 104
-
-/* KML */
-
-#define KML_MAJOR_VERSION 0x00010000
-#define KML_MINOR_VERSION 0x00000002
-#define KML_OPCODE_NOOP 0
-#define KML_OPCODE_CREATE 1
-#define KML_OPCODE_MKDIR 2
-#define KML_OPCODE_UNLINK 3
-#define KML_OPCODE_RMDIR 4
-#define KML_OPCODE_CLOSE 5
-#define KML_OPCODE_SYMLINK 6
-#define KML_OPCODE_RENAME 7
-#define KML_OPCODE_SETATTR 8
-#define KML_OPCODE_LINK 9
-#define KML_OPCODE_OPEN 10
-#define KML_OPCODE_MKNOD 11
-#define KML_OPCODE_WRITE 12
-#define KML_OPCODE_RELEASE 13
-#define KML_OPCODE_TRUNC 14
-#define KML_OPCODE_SETEXTATTR 15
-#define KML_OPCODE_DELEXTATTR 16
-#define KML_OPCODE_KML_TRUNC 17
-#define KML_OPCODE_GET_FILEID 18
-#define KML_OPCODE_NUM 19
-/* new stuff */
-struct presto_version {
- __u32 pv_mtime_sec;
- __u32 pv_mtime_nsec;
- __u32 pv_ctime_sec;
- __u32 pv_ctime_nsec;
- __u64 pv_size;
-};
-
-struct kml_prefix_hdr {
- __u32 len;
- __u32 version;
- __u32 pid;
- __u32 auid;
- __u32 fsuid;
- __u32 fsgid;
- __u32 opcode;
- __u32 ngroups;
-};
-
-struct kml_prefix {
- struct kml_prefix_hdr *hdr;
- __u32 *groups;
-};
-
-struct kml_suffix {
- __u32 prevrec;
- __u32 recno;
- __u32 time;
- __u32 len;
-};
-
-struct kml_rec {
- char *buf;
- struct kml_prefix prefix;
- __u64 offset;
- char *path;
- int pathlen;
- char *name;
- int namelen;
- char *target;
- int targetlen;
- struct presto_version *old_objectv;
- struct presto_version *new_objectv;
- struct presto_version *old_parentv;
- struct presto_version *new_parentv;
- struct presto_version *old_targetv;
- struct presto_version *new_targetv;
- __u32 valid;
- __u32 mode;
- __u32 uid;
- __u32 gid;
- __u64 size;
- __u32 mtime_sec;
- __u32 mtime_nsec;
- __u32 ctime_sec;
- __u32 ctime_nsec;
- __u32 flags;
- __u32 ino;
- __u32 rdev;
- __u32 major;
- __u32 minor;
- __u32 generation;
- __u32 old_mode;
- __u32 old_rdev;
- __u64 old_uid;
- __u64 old_gid;
- char *old_target;
- int old_targetlen;
- struct kml_suffix *suffix;
-};
-
-
-/* RCVD */
-
-/* izo_rcvd_rec fills the .intermezzo/fset/last_rcvd file and provides data about
- * our view of reintegration offsets for a given peer.
- *
- * The only exception is the last_rcvd record which has a UUID consisting of all
- * zeroes; this record's lr_local_offset field is the logical byte offset of our
- * KML, which is updated when KML truncation takes place. All other fields are
- * reserved. */
-
-/* XXX - document how clean shutdowns are recorded */
-
-struct izo_rcvd_rec {
- __u8 lr_uuid[16]; /* which peer? */
- __u64 lr_remote_recno; /* last confirmed remote recno */
- __u64 lr_remote_offset; /* last confirmed remote offset */
- __u64 lr_local_recno; /* last locally reinted recno */
- __u64 lr_local_offset; /* last locally reinted offset */
- __u64 lr_last_ctime; /* the largest ctime that has reintegrated */
-};
-
-/* Cache purge database
- *
- * Each DB entry is this structure followed by the path name, no trailing NUL. */
-struct izo_purge_entry {
- __u64 p_atime;
- __u32 p_pathlen;
-};
-
-/* RPC */
-
-#endif
+++ /dev/null
-#ifndef __PRESTO_JOURNAL_H
-#define __PRESTO_JOURNAL_H
-
-
-struct journal_prefix {
- int len;
- u32 version;
- int pid;
- int uid;
- int fsuid;
- int fsgid;
- int opcode;
- u32 ngroups;
- u32 groups[0];
-};
-
-struct journal_suffix {
- unsigned long prevrec; /* offset of previous record for dentry */
- int recno;
- int time;
- int len;
-};
-
-#endif
+++ /dev/null
-#ifndef __INTERMEZZO_KML_H
-#define __INTERMEZZO_KML_H
-
-#include "intermezzo_psdev.h"
-#include <linux/fs.h>
-#include "intermezzo_journal.h"
-
-#define PRESTO_KML_MAJOR_VERSION 0x00010000
-#define PRESTO_KML_MINOR_VERSION 0x00002001
-#define PRESTO_OP_NOOP 0
-#define PRESTO_OP_CREATE 1
-#define PRESTO_OP_MKDIR 2
-#define PRESTO_OP_UNLINK 3
-#define PRESTO_OP_RMDIR 4
-#define PRESTO_OP_CLOSE 5
-#define PRESTO_OP_SYMLINK 6
-#define PRESTO_OP_RENAME 7
-#define PRESTO_OP_SETATTR 8
-#define PRESTO_OP_LINK 9
-#define PRESTO_OP_OPEN 10
-#define PRESTO_OP_MKNOD 11
-#define PRESTO_OP_WRITE 12
-#define PRESTO_OP_RELEASE 13
-#define PRESTO_OP_TRUNC 14
-#define PRESTO_OP_SETEXTATTR 15
-#define PRESTO_OP_DELEXTATTR 16
-
-#define PRESTO_LML_DONE 1 /* flag to get first write to do LML */
-#define KML_KOP_MARK 0xffff
-
-struct presto_lml_data {
- loff_t rec_offset;
-};
-
-struct big_journal_prefix {
- u32 len;
- u32 version;
- u32 pid;
- u32 uid;
- u32 fsuid;
- u32 fsgid;
- u32 opcode;
- u32 ngroups;
- u32 groups[NGROUPS_SMALL];
-};
-
-enum kml_opcode {
- KML_CREATE = 1,
- KML_MKDIR,
- KML_UNLINK,
- KML_RMDIR,
- KML_CLOSE,
- KML_SYMLINK,
- KML_RENAME,
- KML_SETATTR,
- KML_LINK,
- KML_OPEN,
- KML_MKNOD,
- KML_ENDMARK = 0xff
-};
-
-struct kml_create {
- char *path;
- struct presto_version new_objectv,
- old_parentv,
- new_parentv;
- int mode;
- int uid;
- int gid;
-};
-
-struct kml_open {
-};
-
-struct kml_mkdir {
- char *path;
- struct presto_version new_objectv,
- old_parentv,
- new_parentv;
- int mode;
- int uid;
- int gid;
-};
-
-struct kml_unlink {
- char *path,
- *name;
- struct presto_version old_tgtv,
- old_parentv,
- new_parentv;
-};
-
-struct kml_rmdir {
- char *path,
- *name;
- struct presto_version old_tgtv,
- old_parentv,
- new_parentv;
-};
-
-struct kml_close {
- int open_mode,
- open_uid,
- open_gid;
- char *path;
- struct presto_version new_objectv;
- __u64 ino;
- int generation;
-};
-
-struct kml_symlink {
- char *sourcepath,
- *targetpath;
- struct presto_version new_objectv,
- old_parentv,
- new_parentv;
- int uid;
- int gid;
-};
-
-struct kml_rename {
- char *sourcepath,
- *targetpath;
- struct presto_version old_objectv,
- new_objectv,
- old_tgtv,
- new_tgtv;
-};
-
-struct kml_setattr {
- char *path;
- struct presto_version old_objectv;
- struct iattr iattr;
-};
-
-struct kml_link {
- char *sourcepath,
- *targetpath;
- struct presto_version new_objectv,
- old_parentv,
- new_parentv;
-};
-
-struct kml_mknod {
- char *path;
- struct presto_version new_objectv,
- old_parentv,
- new_parentv;
- int mode;
- int uid;
- int gid;
- int major;
- int minor;
-};
-
-/* kml record items for optimizing */
-struct kml_kop_node
-{
- u32 kml_recno;
- u32 kml_flag;
- u32 kml_op;
- nlink_t i_nlink;
- u32 i_ino;
-};
-
-struct kml_kop_lnode
-{
- struct list_head chains;
- struct kml_kop_node node;
-};
-
-struct kml_endmark {
- u32 total;
- struct kml_kop_node *kop;
-};
-
-/* kml_flag */
-#define KML_REC_DELETE 1
-#define KML_REC_EXIST 0
-
-struct kml_optimize {
- struct list_head kml_chains;
- u32 kml_flag;
- u32 kml_op;
- nlink_t i_nlink;
- u32 i_ino;
-};
-
-struct kml_rec {
- /* attribute of this record */
- int rec_size;
- int rec_kml_offset;
-
- struct big_journal_prefix rec_head;
- union {
- struct kml_create create;
- struct kml_open open;
- struct kml_mkdir mkdir;
- struct kml_unlink unlink;
- struct kml_rmdir rmdir;
- struct kml_close close;
- struct kml_symlink symlink;
- struct kml_rename rename;
- struct kml_setattr setattr;
- struct kml_mknod mknod;
- struct kml_link link;
- struct kml_endmark endmark;
- } rec_kml;
- struct journal_suffix rec_tail;
-
- /* for kml optimize only */
- struct kml_optimize kml_optimize;
-};
-
-/* kml record items for optimizing */
-extern void kml_kop_init (struct presto_file_set *fset);
-extern void kml_kop_addrec (struct presto_file_set *fset,
- struct inode *ino, u32 op, u32 flag);
-extern int kml_kop_flush (struct presto_file_set *fset);
-
-/* defined in kml_setup.c */
-extern int kml_init (struct presto_file_set *fset);
-extern int kml_cleanup (struct presto_file_set *fset);
-
-/* defined in kml.c */
-extern int begin_kml_reint (struct file *file, unsigned long arg);
-extern int do_kml_reint (struct file *file, unsigned long arg);
-extern int end_kml_reint (struct file *file, unsigned long arg);
-
-/* kml_utils.c */
-extern char *dlogit (void *tbuf, const void *sbuf, int size);
-extern char * bdup_printf (char *format, ...);
-
-/* defined in kml_decode.c */
-/* printop */
-#define PRINT_KML_PREFIX 0x1
-#define PRINT_KML_SUFFIX 0x2
-#define PRINT_KML_REC 0x4
-#define PRINT_KML_OPTIMIZE 0x8
-#define PRINT_KML_EXIST 0x10
-#define PRINT_KML_DELETE 0x20
-extern void kml_printrec (struct kml_rec *rec, int printop);
-extern int print_allkmlrec (struct list_head *head, int printop);
-extern int delete_kmlrec (struct list_head *head);
-extern int kml_decoderec (char *buf, int pos, int buflen, int *size,
- struct kml_rec **newrec);
-extern int decode_kmlrec (struct list_head *head, char *kml_buf, int buflen);
-extern void kml_freerec (struct kml_rec *rec);
-
-/* defined in kml_reint.c */
-#define KML_CLOSE_BACKFETCH 1
-extern int kml_reintbuf (struct kml_fsdata *kml_fsdata,
- char *mtpt, struct kml_rec **rec);
-
-/* defined in kml_setup.c */
-extern int kml_init (struct presto_file_set *fset);
-extern int kml_cleanup (struct presto_file_set *fset);
-
-#endif
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Data structures unpacking/packing macros & inlines
- *
- */
-
-#ifndef _INTERMEZZO_LIB_H
-#define _INTERMEZZO_LIB_H
-
-#ifdef __KERNEL__
-# include <linux/types.h>
-#else
-# include <string.h>
-# include <sys/types.h>
-#endif
-
-static inline int size_round (int val)
-{
- return (val + 3) & (~0x3);
-}
-
-static inline int size_round0(int val)
-{
- if (!val)
- return 0;
- return (val + 1 + 3) & (~0x3);
-}
-
-static inline size_t round_strlen(char *fset)
-{
- return size_round(strlen(fset) + 1);
-}
-
-#ifdef __KERNEL__
-# define NTOH__u32(var) le32_to_cpu(var)
-# define NTOH__u64(var) le64_to_cpu(var)
-# define HTON__u32(var) cpu_to_le32(var)
-# define HTON__u64(var) cpu_to_le64(var)
-#else
-# include <glib.h>
-# define NTOH__u32(var) GUINT32_FROM_LE(var)
-# define NTOH__u64(var) GUINT64_FROM_LE(var)
-# define HTON__u32(var) GUINT32_TO_LE(var)
-# define HTON__u64(var) GUINT64_TO_LE(var)
-#endif
-
-/*
- * copy sizeof(type) bytes from pointer to var and move ptr forward.
- * return EFAULT if pointer goes beyond end
- */
-#define UNLOGV(var,type,ptr,end) \
-do { \
- var = *(type *)ptr; \
- ptr += sizeof(type); \
- if (ptr > end ) \
- return -EFAULT; \
-} while (0)
-
-/* the following two macros convert to little endian */
-/* type MUST be __u32 or __u64 */
-#define LUNLOGV(var,type,ptr,end) \
-do { \
- var = NTOH##type(*(type *)ptr); \
- ptr += sizeof(type); \
- if (ptr > end ) \
- return -EFAULT; \
-} while (0)
-
-/* now log values */
-#define LOGV(var,type,ptr) \
-do { \
- *((type *)ptr) = var; \
- ptr += sizeof(type); \
-} while (0)
-
-/* and in network order */
-#define LLOGV(var,type,ptr) \
-do { \
- *((type *)ptr) = HTON##type(var); \
- ptr += sizeof(type); \
-} while (0)
-
-
-/*
- * set var to point at (type *)ptr, move ptr forward with sizeof(type)
- * return from function with EFAULT if ptr goes beyond end
- */
-#define UNLOGP(var,type,ptr,end) \
-do { \
- var = (type *)ptr; \
- ptr += sizeof(type); \
- if (ptr > end ) \
- return -EFAULT; \
-} while (0)
-
-#define LOGP(var,type,ptr) \
-do { \
- memcpy(ptr, var, sizeof(type)); \
- ptr += sizeof(type); \
-} while (0)
-
-/*
- * set var to point at (char *)ptr, move ptr forward by size_round(len);
- * return from function with EFAULT if ptr goes beyond end
- */
-#define UNLOGL(var,type,len,ptr,end) \
-do { \
- if (len == 0) \
- var = (type *)0; \
- else { \
- var = (type *)ptr; \
- ptr += size_round(len * sizeof(type)); \
- } \
- if (ptr > end ) \
- return -EFAULT; \
-} while (0)
-
-#define UNLOGL0(var,type,len,ptr,end) \
-do { \
- UNLOGL(var,type,len+1,ptr,end); \
- if ( *((char *)ptr - size_round(len+1) + len) != '\0') \
- return -EFAULT; \
-} while (0)
-
-#define LOGL(var,len,ptr) \
-do { \
- size_t __fill = size_round(len); \
- /* Prevent data leakage. */ \
- if (__fill > 0) \
- memset((char *)ptr, 0, __fill); \
- memcpy((char *)ptr, (const char *)var, len); \
- ptr += __fill; \
-} while (0)
-
-#define LOGL0(var,len,ptr) \
-do { \
- if (!len) break; \
- memcpy((char *)ptr, (const char *)var, len); \
- *((char *)(ptr) + len) = 0; \
- ptr += size_round(len + 1); \
-} while (0)
-
-#endif /* _INTERMEZZO_LIB_H */
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- */
-
-#ifndef __PRESTO_PSDEV_H
-#define __PRESTO_PSDEV_H
-
-#define MAX_CHANNEL 16
-#define PROCNAME_SIZE 32
-#include <linux/smp_lock.h>
-
-/* represents state of an instance reached with /dev/intermezzo */
-/* communication pending & processing queues */
-struct upc_channel {
- unsigned int uc_seq;
- wait_queue_head_t uc_waitq; /* Lento wait queue */
- struct list_head uc_pending;
- struct list_head uc_processing;
- spinlock_t uc_lock;
- int uc_pid; /* Lento's pid */
- int uc_hard; /* allows signals during upcalls */
- int uc_no_filter;
- int uc_no_journal;
- int uc_no_upcall;
- int uc_timeout; /* . sec: signals will dequeue upc */
- long uc_errorval; /* for testing I/O failures */
- struct list_head uc_cache_list;
- int uc_minor;
-};
-
-#define ISLENTO(minor) (current->pid == izo_channels[minor].uc_pid \
- || current->real_parent->pid == izo_channels[minor].uc_pid \
- || current->real_parent->real_parent->pid == izo_channels[minor].uc_pid)
-
-extern struct upc_channel izo_channels[MAX_CHANNEL];
-
-/* message types between presto filesystem in kernel */
-#define REQ_READ 1
-#define REQ_WRITE 2
-#define REQ_ASYNC 4
-#define REQ_DEAD 8
-
-struct upc_req {
- struct list_head rq_chain;
- caddr_t rq_data;
- int rq_flags;
- int rq_bufsize;
- int rq_rep_size;
- int rq_opcode; /* copied from data to save lookup */
- int rq_unique;
- wait_queue_head_t rq_sleep; /* process' wait queue */
- unsigned long rq_posttime;
-};
-
-#endif
+++ /dev/null
-/*
- * Based on cfs.h from Coda, but revamped for increased simplicity.
- * Linux modifications by Peter Braam, Aug 1996
- * Rewritten for InterMezzo
- */
-
-#ifndef _PRESTO_HEADER_
-#define _PRESTO_HEADER_
-
-
-/* upcall.c */
-#define SYNCHRONOUS 0
-#define ASYNCHRONOUS 1
-
-int lento_permit(int minor, int pathlen, int fsetnamelen, char *path, char *fset);
-int lento_opendir(int minor, int pathlen, char *path, int async);
-int lento_kml(int minor, unsigned int offset, unsigned int first_recno,
- unsigned int length, unsigned int last_recno, int namelen,
- char *fsetname);
-int lento_open(int minor, int pathlen, char *path);
-int lento_journal(int minor, char *page, int async);
-int lento_release_permit(int minor, int cookie);
-
-/*
- * Kernel <--> Lento communications.
- */
-/* upcalls */
-#define LENTO_PERMIT 1
-#define LENTO_JOURNAL 2
-#define LENTO_OPENDIR 3
-#define LENTO_OPEN 4
-#define LENTO_SIGNAL 5
-#define LENTO_KML 6
-#define LENTO_COOKIE 7
-
-/* Lento <-> Presto RPC arguments */
-struct lento_up_hdr {
- unsigned int opcode;
- unsigned int unique; /* Keep multiple outstanding msgs distinct */
- u_short pid; /* Common to all */
- u_short uid;
-};
-
-/* This structure _must_ sit at the beginning of the buffer */
-struct lento_down_hdr {
- unsigned int opcode;
- unsigned int unique;
- unsigned int result;
-};
-
-/* lento_permit: */
-struct lento_permit_in {
- struct lento_up_hdr uh;
- int pathlen;
- int fsetnamelen;
- char path[0];
-};
-struct lento_permit_out {
- struct lento_down_hdr dh;
-};
-
-
-/* lento_opendir: */
-struct lento_opendir_in {
- struct lento_up_hdr uh;
- int async;
- int pathlen;
- char path[0];
-};
-struct lento_opendir_out {
- struct lento_down_hdr dh;
-};
-
-
-/* lento_kml: */
-struct lento_kml_in {
- struct lento_up_hdr uh;
- unsigned int offset;
- unsigned int first_recno;
- unsigned int length;
- unsigned int last_recno;
- int namelen;
- char fsetname[0];
-};
-
-struct lento_kml_out {
- struct lento_down_hdr dh;
-};
-
-
-/* lento_open: */
-struct lento_open_in {
- struct lento_up_hdr uh;
- int pathlen;
- char path[0];
-};
-struct lento_open_out {
- struct lento_down_hdr dh;
-};
-
-/* lento_response_cookie */
-struct lento_response_cookie_in {
- struct lento_up_hdr uh;
- int cookie;
-};
-
-struct lento_response_cookie_out {
- struct lento_down_hdr dh;
-};
-
-
-struct lento_mknod {
- struct lento_down_hdr dh;
- int major;
- int minor;
- int mode;
- char path[0];
-};
-
-
-/* NB: every struct below begins with an up_hdr */
-union up_args {
- struct lento_up_hdr uh;
- struct lento_permit_in lento_permit;
- struct lento_open_in lento_open;
- struct lento_opendir_in lento_opendir;
- struct lento_kml_in lento_kml;
- struct lento_response_cookie_in lento_response_cookie;
-};
-
-union down_args {
- struct lento_down_hdr dh;
- struct lento_permit_out lento_permit;
- struct lento_open_out lento_open;
- struct lento_opendir_out lento_opendir;
- struct lento_kml_out lento_kml;
- struct lento_response_cookie_out lento_response_cookie;
-};
-
-#include "intermezzo_psdev.h"
-
-int lento_upcall(int minor, int read_size, int *rep_size,
- union up_args *buffer, int async,
- struct upc_req *rq );
-#endif
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1998 Peter J. Braam
- * Copyright (C) 2001 Cluster File Systems, Inc.
- * Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
- *
- * Support for journalling extended attributes
- * Copyright (C) 2001 Shirish H. Phatak, Tacit Networks, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/namei.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/time.h>
-#include <linux/errno.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-struct presto_reservation_data {
- unsigned int ri_recno;
- loff_t ri_offset;
- loff_t ri_size;
- struct list_head ri_list;
-};
-
-/*
- * Locking Semantics
- *
- * write lock in struct presto_log_fd:
- * - name: fd_lock
- * - required for: accessing any field in a presto_log_fd
- * - may not be held across I/O
- * -
- *
- */
-
-/*
- * reserve record space and/or atomically request state of the log
- * rec will hold the location reserved record upon return
- * this reservation will be placed in the queue
- */
-static void presto_reserve_record(struct presto_file_set *fset,
- struct presto_log_fd *fd,
- struct rec_info *rec,
- struct presto_reservation_data *rd)
-{
- int chunked_record = 0;
- ENTRY;
-
- write_lock(&fd->fd_lock);
- if ( rec->is_kml ) {
- int chunk = 1 << fset->fset_chunkbits;
- int chunk_mask = ~(chunk -1);
- loff_t boundary;
-
- boundary = (fd->fd_offset + chunk - 1) & chunk_mask;
- if ( fd->fd_offset + rec->size >= boundary ) {
- chunked_record = 1;
- fd->fd_offset = boundary;
- }
- }
-
- fd->fd_recno++;
-
- /* this moves the fd_offset back after truncation */
- if ( list_empty(&fd->fd_reservations) &&
- !chunked_record) {
- fd->fd_offset = fd->fd_file->f_dentry->d_inode->i_size;
- }
-
- rec->offset = fd->fd_offset;
- if (rec->is_kml)
- rec->offset += fset->fset_kml_logical_off;
-
- rec->recno = fd->fd_recno;
-
- /* add the reservation data to the end of the list */
- rd->ri_offset = fd->fd_offset;
- rd->ri_size = rec->size;
- rd->ri_recno = rec->recno;
- list_add(&rd->ri_list, fd->fd_reservations.prev);
-
- fd->fd_offset += rec->size;
-
- write_unlock(&fd->fd_lock);
-
- EXIT;
-}
-
-static inline void presto_release_record(struct presto_log_fd *fd,
- struct presto_reservation_data *rd)
-{
- write_lock(&fd->fd_lock);
- list_del(&rd->ri_list);
- write_unlock(&fd->fd_lock);
-}
-
-/* XXX should we ask for do_truncate to be exported? */
-int izo_do_truncate(struct presto_file_set *fset, struct dentry *dentry,
- loff_t length, loff_t size_check)
-{
- struct inode *inode = dentry->d_inode;
- int error;
- struct iattr newattrs;
-
- ENTRY;
-
- if (length < 0) {
- EXIT;
- return -EINVAL;
- }
-
- down(&inode->i_sem);
- lock_kernel();
-
- if (size_check != inode->i_size) {
- unlock_kernel();
- up(&inode->i_sem);
- EXIT;
- return -EALREADY;
- }
-
- newattrs.ia_size = length;
- newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
-
- if (inode->i_op && inode->i_op->setattr)
- error = inode->i_op->setattr(dentry, &newattrs);
- else {
- inode_setattr(dentry->d_inode, &newattrs);
- error = 0;
- }
-
- unlock_kernel();
- up(&inode->i_sem);
- EXIT;
- return error;
-}
-
-static void presto_kml_truncate(struct presto_file_set *fset)
-{
- int rc;
- ENTRY;
-
- write_lock(&fset->fset_kml.fd_lock);
- if (fset->fset_kml.fd_truncating == 1 ) {
- write_unlock(&fset->fset_kml.fd_lock);
- EXIT;
- return;
- }
-
- fset->fset_kml.fd_truncating = 1;
- write_unlock(&fset->fset_kml.fd_lock);
-
- CERROR("islento: %d, count: %d\n",
- ISLENTO(presto_i2m(fset->fset_dentry->d_inode)),
- fset->fset_permit_count);
-
- rc = izo_upc_kml_truncate(fset->fset_cache->cache_psdev->uc_minor,
- fset->fset_lento_off, fset->fset_lento_recno,
- fset->fset_name);
-
- /* Userspace is the only permitholder now, and will retain an exclusive
- * hold on the permit until KML truncation completes. */
- /* FIXME: double check this code path now that the precise semantics of
- * fset->fset_permit_count have changed. */
-
- if (rc != 0) {
- write_lock(&fset->fset_kml.fd_lock);
- fset->fset_kml.fd_truncating = 0;
- write_unlock(&fset->fset_kml.fd_lock);
- }
-
- EXIT;
-}
-
-void *presto_trans_start(struct presto_file_set *fset, struct inode *inode,
- int op)
-{
- ENTRY;
- if ( !fset->fset_cache->cache_filter->o_trops ) {
- EXIT;
- return NULL;
- }
- EXIT;
- return fset->fset_cache->cache_filter->o_trops->tr_start
- (fset, inode, op);
-}
-
-void presto_trans_commit(struct presto_file_set *fset, void *handle)
-{
- ENTRY;
- if (!fset->fset_cache->cache_filter->o_trops ) {
- EXIT;
- return;
- }
-
- fset->fset_cache->cache_filter->o_trops->tr_commit(fset, handle);
-
- /* Check to see if the KML needs truncated. */
- if (fset->kml_truncate_size > 0 &&
- !fset->fset_kml.fd_truncating &&
- fset->fset_kml.fd_offset > fset->kml_truncate_size) {
- CDEBUG(D_JOURNAL, "kml size: %lu; truncating\n",
- (unsigned long)fset->fset_kml.fd_offset);
- presto_kml_truncate(fset);
- }
- EXIT;
-}
-
-inline int presto_no_journal(struct presto_file_set *fset)
-{
- int minor = fset->fset_cache->cache_psdev->uc_minor;
- return izo_channels[minor].uc_no_journal;
-}
-
-#define size_round(x) (((x)+3) & ~0x3)
-
-#define BUFF_FREE(buf) PRESTO_FREE(buf, PAGE_SIZE)
-#define BUFF_ALLOC(newbuf, oldbuf) \
- PRESTO_ALLOC(newbuf, PAGE_SIZE); \
- if ( !newbuf ) { \
- if (oldbuf) \
- BUFF_FREE(oldbuf); \
- return -ENOMEM; \
- }
-
-/*
- * "buflen" should be PAGE_SIZE or more.
- * Give relative path wrt to a fsetroot
- */
-char * presto_path(struct dentry *dentry, struct dentry *root,
- char *buffer, int buflen)
-{
- char * end = buffer+buflen;
- char * retval;
-
- *--end = '\0';
- buflen--;
- if (dentry->d_parent != dentry && d_unhashed(dentry)) {
- buflen -= 10;
- end -= 10;
- memcpy(end, " (deleted)", 10);
- }
-
- /* Get '/' right */
- retval = end-1;
- *retval = '/';
-
- for (;;) {
- struct dentry * parent;
- int namelen;
-
- if (dentry == root)
- break;
- parent = dentry->d_parent;
- if (dentry == parent)
- break;
- namelen = dentry->d_name.len;
- buflen -= namelen + 1;
- if (buflen < 0)
- break;
- end -= namelen;
- memcpy(end, dentry->d_name.name, namelen);
- *--end = '/';
- retval = end;
- dentry = parent;
- }
- return retval;
-}
-
-static inline char *logit(char *buf, const void *value, int size)
-{
- char *ptr = (char *)value;
-
- memcpy(buf, ptr, size);
- buf += size;
- return buf;
-}
-
-
-static inline char *
-journal_log_prefix_with_groups_and_ids(char *buf, int opcode,
- struct rec_info *rec,
- __u32 ngroups, gid_t *groups,
- __u32 fsuid, __u32 fsgid)
-{
- struct kml_prefix_hdr p;
- u32 loggroups[NGROUPS_SMALL];
-
- int i;
-
- p.len = cpu_to_le32(rec->size);
- p.version = KML_MAJOR_VERSION | KML_MINOR_VERSION;
- p.pid = cpu_to_le32(current->pid);
- p.auid = cpu_to_le32(current->uid);
- p.fsuid = cpu_to_le32(fsuid);
- p.fsgid = cpu_to_le32(fsgid);
- p.ngroups = cpu_to_le32(ngroups);
- p.opcode = cpu_to_le32(opcode);
- for (i=0 ; i < ngroups ; i++)
- loggroups[i] = cpu_to_le32((__u32) groups[i]);
-
- buf = logit(buf, &p, sizeof(struct kml_prefix_hdr));
- buf = logit(buf, &loggroups, sizeof(__u32) * ngroups);
- return buf;
-}
-
-static inline char *
-journal_log_prefix(char *buf, int opcode, struct rec_info *rec)
-{
- __u32 groups[NGROUPS_SMALL];
- int i;
-
- /* convert 16 bit gid's to 32 bit gid's */
- for (i=0; i<current->group_info->ngroups; i++)
- groups[i] = GROUP_AT(current->group_info,i);
-
- return journal_log_prefix_with_groups_and_ids(buf, opcode, rec,
- (__u32)current->group_info->ngroups,
- groups,
- (__u32)current->fsuid,
- (__u32)current->fsgid);
-}
-
-static inline char *
-journal_log_prefix_with_groups(char *buf, int opcode, struct rec_info *rec,
- __u32 ngroups, gid_t *groups)
-{
- return journal_log_prefix_with_groups_and_ids(buf, opcode, rec,
- ngroups, groups,
- (__u32)current->fsuid,
- (__u32)current->fsgid);
-}
-
-static inline char *log_dentry_version(char *buf, struct dentry *dentry)
-{
- struct presto_version version;
-
- presto_getversion(&version, dentry->d_inode);
-
- version.pv_mtime_sec = HTON__u32(version.pv_mtime_sec);
- version.pv_ctime_sec = HTON__u32(version.pv_ctime_sec);
- version.pv_mtime_nsec = HTON__u32(version.pv_mtime_nsec);
- version.pv_ctime_nsec = HTON__u32(version.pv_ctime_nsec);
- version.pv_size = HTON__u64(version.pv_size);
-
- return logit(buf, &version, sizeof(version));
-}
-
-static inline char *log_version(char *buf, struct presto_version *pv)
-{
- struct presto_version version;
-
- memcpy(&version, pv, sizeof(version));
-
- version.pv_mtime_sec = HTON__u32(version.pv_mtime_sec);
- version.pv_mtime_nsec = HTON__u32(version.pv_mtime_nsec);
- version.pv_ctime_sec = HTON__u32(version.pv_ctime_sec);
- version.pv_ctime_nsec = HTON__u32(version.pv_ctime_nsec);
- version.pv_size = HTON__u64(version.pv_size);
-
- return logit(buf, &version, sizeof(version));
-}
-
-static inline char *log_rollback(char *buf, struct izo_rollback_data *rb)
-{
- struct izo_rollback_data rollback;
-
- rollback.rb_mode = HTON__u32(rb->rb_mode);
- rollback.rb_rdev = HTON__u32(rb->rb_rdev);
- rollback.rb_uid = HTON__u64(rb->rb_uid);
- rollback.rb_gid = HTON__u64(rb->rb_gid);
-
- return logit(buf, &rollback, sizeof(rollback));
-}
-
-static inline char *journal_log_suffix(char *buf, char *log,
- struct presto_file_set *fset,
- struct dentry *dentry,
- struct rec_info *rec)
-{
- struct kml_suffix s;
- struct kml_prefix_hdr *p = (struct kml_prefix_hdr *)log;
-
-#if 0
- /* XXX needs to be done after reservation,
- disable ths until version 1.2 */
- if ( dentry ) {
- s.prevrec = cpu_to_le32(rec->offset -
- presto_d2d(dentry)->dd_kml_offset);
- presto_d2d(dentry)->dd_kml_offset = rec->offset;
- } else {
- s.prevrec = -1;
- }
-#endif
- s.prevrec = 0;
-
- /* record number needs to be filled in after reservation
- s.recno = cpu_to_le32(rec->recno); */
- s.time = cpu_to_le32(get_seconds());
- s.len = p->len;
- return logit(buf, &s, sizeof(s));
-}
-
-int izo_log_close(struct presto_log_fd *logfd)
-{
- int rc = 0;
-
- if (logfd->fd_file) {
- rc = filp_close(logfd->fd_file, 0);
- logfd->fd_file = NULL;
- } else
- CERROR("InterMezzo: %s: no filp\n", __FUNCTION__);
- if (rc != 0)
- CERROR("InterMezzo: close files: filp won't close: %d\n", rc);
-
- return rc;
-}
-
-int presto_fwrite(struct file *file, const char *str, int len, loff_t *off)
-{
- int rc;
- mm_segment_t old_fs;
- ENTRY;
-
- rc = -EINVAL;
- if ( !off ) {
- EXIT;
- return rc;
- }
-
- if ( ! file ) {
- EXIT;
- return rc;
- }
-
- if ( ! file->f_op ) {
- EXIT;
- return rc;
- }
-
- if ( ! file->f_op->write ) {
- EXIT;
- return rc;
- }
-
- old_fs = get_fs();
- set_fs(get_ds());
- rc = file->f_op->write(file, str, len, off);
- if (rc != len) {
- CERROR("presto_fwrite: wrote %d bytes instead of "
- "%d at %ld\n", rc, len, (long)*off);
- rc = -EIO;
- }
- set_fs(old_fs);
- EXIT;
- return rc;
-}
-
-int presto_fread(struct file *file, char *str, int len, loff_t *off)
-{
- int rc;
- mm_segment_t old_fs;
- ENTRY;
-
- if (len > 512)
- CERROR("presto_fread: read at %Ld for %d bytes, ino %ld\n",
- *off, len, file->f_dentry->d_inode->i_ino);
-
- rc = -EINVAL;
- if ( !off ) {
- EXIT;
- return rc;
- }
-
- if ( ! file ) {
- EXIT;
- return rc;
- }
-
- if ( ! file->f_op ) {
- EXIT;
- return rc;
- }
-
- if ( ! file->f_op->read ) {
- EXIT;
- return rc;
- }
-
- old_fs = get_fs();
- set_fs(get_ds());
- rc = file->f_op->read(file, str, len, off);
- if (rc != len) {
- CDEBUG(D_FILE, "presto_fread: read %d bytes instead of "
- "%d at %Ld\n", rc, len, *off);
- rc = -EIO;
- }
- set_fs(old_fs);
- EXIT;
- return rc;
-}
-
-loff_t presto_kml_offset(struct presto_file_set *fset)
-{
- unsigned int kml_recno;
- struct presto_log_fd *fd = &fset->fset_kml;
- loff_t offset;
- ENTRY;
-
- write_lock(&fd->fd_lock);
-
- /* Determine the largest valid offset, i.e. up until the first
- * reservation held on the file. */
- if ( !list_empty(&fd->fd_reservations) ) {
- struct presto_reservation_data *rd;
- rd = list_entry(fd->fd_reservations.next,
- struct presto_reservation_data,
- ri_list);
- offset = rd->ri_offset;
- kml_recno = rd->ri_recno;
- } else {
- offset = fd->fd_file->f_dentry->d_inode->i_size;
- kml_recno = fset->fset_kml.fd_recno;
- }
- write_unlock(&fd->fd_lock);
- return offset;
-}
-
-static int presto_kml_dispatch(struct presto_file_set *fset)
-{
- int rc = 0;
- unsigned int kml_recno;
- struct presto_log_fd *fd = &fset->fset_kml;
- loff_t offset;
- ENTRY;
-
- write_lock(&fd->fd_lock);
-
- /* Determine the largest valid offset, i.e. up until the first
- * reservation held on the file. */
- if ( !list_empty(&fd->fd_reservations) ) {
- struct presto_reservation_data *rd;
- rd = list_entry(fd->fd_reservations.next,
- struct presto_reservation_data,
- ri_list);
- offset = rd->ri_offset;
- kml_recno = rd->ri_recno;
- } else {
- offset = fd->fd_file->f_dentry->d_inode->i_size;
- kml_recno = fset->fset_kml.fd_recno;
- }
-
- if ( kml_recno < fset->fset_lento_recno ) {
- CERROR("presto_kml_dispatch: smoke is coming\n");
- write_unlock(&fd->fd_lock);
- EXIT;
- return 0;
- } else if ( kml_recno == fset->fset_lento_recno ) {
- write_unlock(&fd->fd_lock);
- EXIT;
- return 0;
- /* XXX add a further "if" here to delay the KML upcall */
-#if 0
- } else if ( kml_recno < fset->fset_lento_recno + 100) {
- write_unlock(&fd->fd_lock);
- EXIT;
- return 0;
-#endif
- }
- CDEBUG(D_PIOCTL, "fset: %s\n", fset->fset_name);
-
- rc = izo_upc_kml(fset->fset_cache->cache_psdev->uc_minor,
- fset->fset_lento_off, fset->fset_lento_recno,
- offset + fset->fset_kml_logical_off, kml_recno,
- fset->fset_name);
-
- if ( rc ) {
- write_unlock(&fd->fd_lock);
- EXIT;
- return rc;
- }
-
- fset->fset_lento_off = offset;
- fset->fset_lento_recno = kml_recno;
- write_unlock(&fd->fd_lock);
- EXIT;
- return 0;
-}
-
-int izo_lookup_file(struct presto_file_set *fset, char *path,
- struct nameidata *nd)
-{
- int error = 0;
-
- CDEBUG(D_CACHE, "looking up: %s\n", path);
-
- error = path_lookup(path, LOOKUP_PARENT, nd);
- if (error) {
- EXIT;
- return error;
- }
-
- return 0;
-}
-
-/* FIXME: this function is a mess of locking and error handling. There's got to
- * be a better way. */
-static int do_truncate_rename(struct presto_file_set *fset, char *oldname,
- char *newname)
-{
- struct dentry *old_dentry, *new_dentry;
- struct nameidata oldnd, newnd;
- char *oldpath, *newpath;
- int error;
-
- ENTRY;
-
- oldpath = izo_make_path(fset, oldname);
- if (oldpath == NULL) {
- EXIT;
- return -ENOENT;
- }
-
- newpath = izo_make_path(fset, newname);
- if (newpath == NULL) {
- error = -ENOENT;
- EXIT;
- goto exit;
- }
-
- if ((error = izo_lookup_file(fset, oldpath, &oldnd)) != 0) {
- EXIT;
- goto exit1;
- }
-
- if ((error = izo_lookup_file(fset, newpath, &newnd)) != 0) {
- EXIT;
- goto exit2;
- }
-
- lock_rename(newnd.dentry, oldnd.dentry);
- old_dentry = lookup_hash(&oldnd.last, oldnd.dentry);
- error = PTR_ERR(old_dentry);
- if (IS_ERR(old_dentry)) {
- EXIT;
- goto exit3;
- }
- error = -ENOENT;
- if (!old_dentry->d_inode) {
- EXIT;
- goto exit4;
- }
- new_dentry = lookup_hash(&newnd.last, newnd.dentry);
- error = PTR_ERR(new_dentry);
- if (IS_ERR(new_dentry)) {
- EXIT;
- goto exit4;
- }
-
- {
- extern int presto_rename(struct inode *old_dir,struct dentry *old_dentry,
- struct inode *new_dir,struct dentry *new_dentry);
- error = presto_rename(old_dentry->d_parent->d_inode, old_dentry,
- new_dentry->d_parent->d_inode, new_dentry);
- }
-
- dput(new_dentry);
- EXIT;
- exit4:
- dput(old_dentry);
- exit3:
- unlock_rename(newnd.dentry, oldnd.dentry);
- path_release(&newnd);
- exit2:
- path_release(&oldnd);
- exit1:
- PRESTO_FREE(newpath, strlen(newpath) + 1);
- exit:
- PRESTO_FREE(oldpath, strlen(oldpath) + 1);
- return error;
-}
-
-/* This function is called with the fset->fset_kml.fd_lock held */
-int presto_finish_kml_truncate(struct presto_file_set *fset,
- unsigned long int offset)
-{
- struct lento_vfs_context info;
- void *handle;
- struct file *f;
- struct dentry *dentry;
- int error = 0, len;
- struct nameidata nd;
- char *kmlpath = NULL, *smlpath = NULL;
- ENTRY;
-
- if (offset == 0) {
- /* Lento couldn't do what it needed to; abort the truncation. */
- fset->fset_kml.fd_truncating = 0;
- EXIT;
- return 0;
- }
-
- /* someone is about to write to the end of the KML; try again later. */
- if ( !list_empty(&fset->fset_kml.fd_reservations) ) {
- EXIT;
- return -EAGAIN;
- }
-
- f = presto_copy_kml_tail(fset, offset);
- if (IS_ERR(f)) {
- EXIT;
- return PTR_ERR(f);
- }
-
- /* In a single transaction:
- *
- * - unlink 'kml'
- * - rename 'kml_tmp' to 'kml'
- * - unlink 'sml'
- * - rename 'sml_tmp' to 'sml'
- * - rewrite the first record of last_rcvd with the new kml
- * offset.
- */
- handle = presto_trans_start(fset, fset->fset_dentry->d_inode,
- KML_OPCODE_KML_TRUNC);
- if (IS_ERR(handle)) {
- presto_release_space(fset->fset_cache, PRESTO_REQLOW);
- CERROR("ERROR: presto_finish_kml_truncate: no space for transaction\n");
- EXIT;
- return -ENOMEM;
- }
-
- memset(&info, 0, sizeof(info));
- info.flags = LENTO_FL_IGNORE_TIME;
-
- kmlpath = izo_make_path(fset, "kml");
- if (kmlpath == NULL) {
- error = -ENOMEM;
- CERROR("make_path failed: ENOMEM\n");
- EXIT;
- goto exit_commit;
- }
-
- if ((error = izo_lookup_file(fset, kmlpath, &nd)) != 0) {
- CERROR("izo_lookup_file(kml) failed: %d.\n", error);
- EXIT;
- goto exit_commit;
- }
- down(&nd.dentry->d_inode->i_sem);
- dentry = lookup_hash(&nd.last, nd.dentry);
- error = PTR_ERR(dentry);
- if (IS_ERR(dentry)) {
- up(&nd.dentry->d_inode->i_sem);
- path_release(&nd);
- CERROR("lookup_hash failed\n");
- EXIT;
- goto exit_commit;
- }
- error = presto_do_unlink(fset, dentry->d_parent, dentry, &info);
- dput(dentry);
- up(&nd.dentry->d_inode->i_sem);
- path_release(&nd);
-
- if (error != 0) {
- CERROR("presto_do_unlink(kml) failed: %d.\n", error);
- EXIT;
- goto exit_commit;
- }
-
- smlpath = izo_make_path(fset, "sml");
- if (smlpath == NULL) {
- error = -ENOMEM;
- CERROR("make_path() failed: ENOMEM\n");
- EXIT;
- goto exit_commit;
- }
-
- if ((error = izo_lookup_file(fset, smlpath, &nd)) != 0) {
- CERROR("izo_lookup_file(sml) failed: %d.\n", error);
- EXIT;
- goto exit_commit;
- }
- down(&nd.dentry->d_inode->i_sem);
- dentry = lookup_hash(&nd.last, nd.dentry);
- error = PTR_ERR(dentry);
- if (IS_ERR(dentry)) {
- up(&nd.dentry->d_inode->i_sem);
- path_release(&nd);
- CERROR("lookup_hash failed\n");
- EXIT;
- goto exit_commit;
- }
- error = presto_do_unlink(fset, dentry->d_parent, dentry, &info);
- dput(dentry);
- up(&nd.dentry->d_inode->i_sem);
- path_release(&nd);
-
- if (error != 0) {
- CERROR("presto_do_unlink(sml) failed: %d.\n", error);
- EXIT;
- goto exit_commit;
- }
-
- error = do_truncate_rename(fset, "kml_tmp", "kml");
- if (error != 0)
- CERROR("do_truncate_rename(kml_tmp, kml) failed: %d\n", error);
- error = do_truncate_rename(fset, "sml_tmp", "sml");
- if (error != 0)
- CERROR("do_truncate_rename(sml_tmp, sml) failed: %d\n", error);
-
- /* Write a new 'last_rcvd' record with the new KML offset */
- fset->fset_kml_logical_off += offset;
- CDEBUG(D_CACHE, "new kml_logical_offset: %Lu\n",
- fset->fset_kml_logical_off);
- if (presto_write_kml_logical_offset(fset) != 0) {
- CERROR("presto_write_kml_logical_offset failed\n");
- }
-
- presto_trans_commit(fset, handle);
-
- /* Everything was successful, so swap the KML file descriptors */
- filp_close(fset->fset_kml.fd_file, NULL);
- fset->fset_kml.fd_file = f;
- fset->fset_kml.fd_offset -= offset;
- fset->fset_kml.fd_truncating = 0;
-
- EXIT;
- return 0;
-
- exit_commit:
- presto_trans_commit(fset, handle);
- len = strlen("/.intermezzo/") + strlen(fset->fset_name) +strlen("sml");
- if (kmlpath != NULL)
- PRESTO_FREE(kmlpath, len);
- if (smlpath != NULL)
- PRESTO_FREE(smlpath, len);
- return error;
-}
-
-/* structure of an extended log record:
-
- buf-prefix buf-body [string1 [string2 [string3]]] buf-suffix
-
- note: moves offset forward
-*/
-static inline int presto_write_record(struct file *f, loff_t *off,
- const char *buf, size_t size,
- const char *string1, int len1,
- const char *string2, int len2,
- const char *string3, int len3)
-{
- size_t prefix_size;
- int rc;
-
- prefix_size = size - sizeof(struct kml_suffix);
- rc = presto_fwrite(f, buf, prefix_size, off);
- if ( rc != prefix_size ) {
- CERROR("Write error!\n");
- EXIT;
- return -EIO;
- }
-
- if ( string1 && len1 ) {
- rc = presto_fwrite(f, string1, len1, off);
- if ( rc != len1 ) {
- CERROR("Write error!\n");
- EXIT;
- return -EIO;
- }
- }
-
- if ( string2 && len2 ) {
- rc = presto_fwrite(f, string2, len2, off);
- if ( rc != len2 ) {
- CERROR("Write error!\n");
- EXIT;
- return -EIO;
- }
- }
-
- if ( string3 && len3 ) {
- rc = presto_fwrite(f, string3, len3, off);
- if ( rc != len3 ) {
- CERROR("Write error!\n");
- EXIT;
- return -EIO;
- }
- }
-
- rc = presto_fwrite(f, buf + prefix_size,
- sizeof(struct kml_suffix), off);
- if ( rc != sizeof(struct kml_suffix) ) {
- CERROR("Write error!\n");
- EXIT;
- return -EIO;
- }
- return 0;
-}
-
-
-/*
- * rec->size must be valid prior to calling this function.
- *
- * had to export this for branch_reinter in kml_reint.c
- */
-int presto_log(struct presto_file_set *fset, struct rec_info *rec,
- const char *buf, size_t size,
- const char *string1, int len1,
- const char *string2, int len2,
- const char *string3, int len3)
-{
- int rc;
- struct presto_reservation_data rd;
- loff_t offset;
- struct presto_log_fd *fd;
- struct kml_suffix *s;
- int prefix_size;
-
- ENTRY;
-
- /* buf is NULL when no_journal is in effect */
- if (!buf) {
- EXIT;
- return -EINVAL;
- }
-
- if (rec->is_kml) {
- fd = &fset->fset_kml;
- } else {
- fd = &fset->fset_lml;
- }
-
- presto_reserve_record(fset, fd, rec, &rd);
-
- if (rec->is_kml) {
- if (rec->offset < fset->fset_kml_logical_off) {
- CERROR("record with pre-trunc offset. tell phil.\n");
- BUG();
- }
- offset = rec->offset - fset->fset_kml_logical_off;
- } else {
- offset = rec->offset;
- }
-
- /* now we know the record number */
- prefix_size = size - sizeof(struct kml_suffix);
- s = (struct kml_suffix *) (buf + prefix_size);
- s->recno = cpu_to_le32(rec->recno);
-
- rc = presto_write_record(fd->fd_file, &offset, buf, size,
- string1, len1, string2, len2, string3, len3);
- if (rc) {
- CERROR("presto: error writing record to %s\n",
- rec->is_kml ? "KML" : "LML");
- return rc;
- }
- presto_release_record(fd, &rd);
-
- rc = presto_kml_dispatch(fset);
-
- EXIT;
- return rc;
-}
-
-/* read from the record at tail */
-static int presto_last_record(struct presto_log_fd *fd, loff_t *size,
- loff_t *tail_offset, __u32 *recno, loff_t tail)
-{
- struct kml_suffix suffix;
- int rc;
- loff_t zeroes;
-
- *recno = 0;
- *tail_offset = 0;
- *size = 0;
-
- if (tail < sizeof(struct kml_prefix_hdr) + sizeof(suffix)) {
- EXIT;
- return 0;
- }
-
- zeroes = tail - sizeof(int);
- while ( zeroes >= 0 ) {
- int data;
- rc = presto_fread(fd->fd_file, (char *)&data, sizeof(data),
- &zeroes);
- if ( rc != sizeof(data) ) {
- rc = -EIO;
- return rc;
- }
- if (data)
- break;
- zeroes -= 2 * sizeof(data);
- }
-
- /* zeroes at the begining of file. this is needed to prevent
- presto_fread errors -SHP
- */
- if (zeroes <= 0) return 0;
-
- zeroes -= sizeof(suffix) + sizeof(int);
- rc = presto_fread(fd->fd_file, (char *)&suffix, sizeof(suffix), &zeroes);
- if ( rc != sizeof(suffix) ) {
- EXIT;
- return rc;
- }
- if ( suffix.len > 500 ) {
- CERROR("InterMezzo: Warning long record tail at %ld, rec tail_offset at %ld (size %d)\n",
- (long) zeroes, (long)*tail_offset, suffix.len);
- }
-
- *recno = suffix.recno;
- *size = suffix.len;
- *tail_offset = zeroes;
- return 0;
-}
-
-static int izo_kml_last_recno(struct presto_log_fd *logfd)
-{
- int rc;
- loff_t size;
- loff_t tail_offset;
- int recno;
- loff_t tail = logfd->fd_file->f_dentry->d_inode->i_size;
-
- rc = presto_last_record(logfd, &size, &tail_offset, &recno, tail);
- if (rc != 0) {
- EXIT;
- return rc;
- }
-
- logfd->fd_offset = tail_offset;
- logfd->fd_recno = recno;
- CDEBUG(D_JOURNAL, "setting fset_kml->fd_recno to %d, offset %Ld\n",
- recno, tail_offset);
- EXIT;
- return 0;
-}
-
-struct file *izo_log_open(struct presto_file_set *fset, char *name, int flags)
-{
- struct presto_cache *cache = fset->fset_cache;
- struct file *f;
- int error;
- ENTRY;
-
- f = izo_fset_open(fset, name, flags, 0644);
- error = PTR_ERR(f);
- if (IS_ERR(f)) {
- EXIT;
- return f;
- }
-
- error = -EINVAL;
- if ( cache != presto_get_cache(f->f_dentry->d_inode) ) {
- CERROR("InterMezzo: %s cache does not match fset cache!\n",name);
- fset->fset_kml.fd_file = NULL;
- filp_close(f, NULL);
- f = NULL;
- EXIT;
- return f;
- }
-
- if (cache->cache_filter && cache->cache_filter->o_trops &&
- cache->cache_filter->o_trops->tr_journal_data) {
- cache->cache_filter->o_trops->tr_journal_data
- (f->f_dentry->d_inode);
- } else {
- CERROR("InterMezzo WARNING: no file data logging!\n");
- }
-
- EXIT;
-
- return f;
-}
-
-int izo_init_kml_file(struct presto_file_set *fset, struct presto_log_fd *logfd)
-{
- int error = 0;
- struct file *f;
-
- ENTRY;
- if (logfd->fd_file) {
- CDEBUG(D_INODE, "fset already has KML open\n");
- EXIT;
- return 0;
- }
-
- logfd->fd_lock = RW_LOCK_UNLOCKED;
- INIT_LIST_HEAD(&logfd->fd_reservations);
- f = izo_log_open(fset, "kml", O_RDWR | O_CREAT);
- if (IS_ERR(f)) {
- error = PTR_ERR(f);
- return error;
- }
-
- logfd->fd_file = f;
- error = izo_kml_last_recno(logfd);
-
- if (error) {
- logfd->fd_file = NULL;
- filp_close(f, NULL);
- CERROR("InterMezzo: IO error in KML of fset %s\n",
- fset->fset_name);
- EXIT;
- return error;
- }
- fset->fset_lento_off = logfd->fd_offset;
- fset->fset_lento_recno = logfd->fd_recno;
-
- EXIT;
- return error;
-}
-
-int izo_init_last_rcvd_file(struct presto_file_set *fset, struct presto_log_fd *logfd)
-{
- int error = 0;
- struct file *f;
- struct rec_info recinfo;
-
- ENTRY;
- if (logfd->fd_file != NULL) {
- CDEBUG(D_INODE, "fset already has last_rcvd open\n");
- EXIT;
- return 0;
- }
-
- logfd->fd_lock = RW_LOCK_UNLOCKED;
- INIT_LIST_HEAD(&logfd->fd_reservations);
- f = izo_log_open(fset, "last_rcvd", O_RDWR | O_CREAT);
- if (IS_ERR(f)) {
- error = PTR_ERR(f);
- return error;
- }
-
- logfd->fd_file = f;
- logfd->fd_offset = f->f_dentry->d_inode->i_size;
-
- error = izo_rep_cache_init(fset);
-
- if (presto_read_kml_logical_offset(&recinfo, fset) == 0) {
- fset->fset_kml_logical_off = recinfo.offset;
- } else {
- /* The 'last_rcvd' file doesn't contain a kml offset record,
- * probably because we just created 'last_rcvd'. Write one. */
- fset->fset_kml_logical_off = 0;
- presto_write_kml_logical_offset(fset);
- }
-
- EXIT;
- return error;
-}
-
-int izo_init_lml_file(struct presto_file_set *fset, struct presto_log_fd *logfd)
-{
- int error = 0;
- struct file *f;
-
- ENTRY;
- if (logfd->fd_file) {
- CDEBUG(D_INODE, "fset already has lml open\n");
- EXIT;
- return 0;
- }
-
- logfd->fd_lock = RW_LOCK_UNLOCKED;
- INIT_LIST_HEAD(&logfd->fd_reservations);
- f = izo_log_open(fset, "lml", O_RDWR | O_CREAT);
- if (IS_ERR(f)) {
- error = PTR_ERR(f);
- return error;
- }
-
- logfd->fd_file = f;
- logfd->fd_offset = f->f_dentry->d_inode->i_size;
-
- EXIT;
- return error;
-}
-
-/* Get the KML-offset record from the last_rcvd file */
-int presto_read_kml_logical_offset(struct rec_info *recinfo,
- struct presto_file_set *fset)
-{
- loff_t off;
- struct izo_rcvd_rec rec;
- char uuid[16] = {0};
-
- off = izo_rcvd_get(&rec, fset, uuid);
- if (off < 0)
- return -1;
-
- recinfo->offset = rec.lr_local_offset;
- return 0;
-}
-
-int presto_write_kml_logical_offset(struct presto_file_set *fset)
-{
- loff_t rc;
- struct izo_rcvd_rec rec;
- char uuid[16] = {0};
-
- rc = izo_rcvd_get(&rec, fset, uuid);
- if (rc < 0)
- memset(&rec, 0, sizeof(rec));
-
- rec.lr_local_offset =
- cpu_to_le64(fset->fset_kml_logical_off);
-
- return izo_rcvd_write(fset, &rec);
-}
-
-struct file * presto_copy_kml_tail(struct presto_file_set *fset,
- unsigned long int start)
-{
- struct file *f;
- int len;
- loff_t read_off, write_off, bytes;
-
- ENTRY;
-
- /* Copy the tail of 'kml' to 'kml_tmp' */
- f = izo_log_open(fset, "kml_tmp", O_RDWR);
- if (IS_ERR(f)) {
- EXIT;
- return f;
- }
-
- write_off = 0;
- read_off = start;
- bytes = fset->fset_kml.fd_offset - start;
- while (bytes > 0) {
- char buf[4096];
- int toread;
-
- if (bytes > sizeof(buf))
- toread = sizeof(buf);
- else
- toread = bytes;
-
- len = presto_fread(fset->fset_kml.fd_file, buf, toread,
- &read_off);
- if (len <= 0)
- break;
-
- if (presto_fwrite(f, buf, len, &write_off) != len) {
- filp_close(f, NULL);
- EXIT;
- return ERR_PTR(-EIO);
- }
-
- bytes -= len;
- }
-
- EXIT;
- return f;
-}
-
-
-/* LML records here */
-/* this writes an LML record to the LML file (rec->is_kml =0) */
-int presto_write_lml_close(struct rec_info *rec,
- struct presto_file_set *fset,
- struct file *file,
- __u64 remote_ino,
- __u64 remote_generation,
- struct presto_version *remote_version,
- struct presto_version *new_file_ver)
-{
- int opcode = KML_OPCODE_CLOSE;
- char *buffer;
- struct dentry *dentry = file->f_dentry;
- __u64 ino;
- __u32 pathlen;
- char *path;
- __u32 generation;
- int size;
- char *logrecord;
- char record[292];
- struct dentry *root;
- int error;
-
- ENTRY;
-
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
- root = fset->fset_dentry;
-
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dentry, root, buffer, PAGE_SIZE);
- CDEBUG(D_INODE, "Path: %s\n", path);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- ino = cpu_to_le64(dentry->d_inode->i_ino);
- generation = cpu_to_le32(dentry->d_inode->i_generation);
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + sizeof(*new_file_ver) +
- sizeof(ino) + sizeof(generation) + sizeof(pathlen) +
- sizeof(remote_ino) + sizeof(remote_generation) +
- sizeof(remote_version) + sizeof(rec->offset) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 0;
- rec->size = size + size_round(le32_to_cpu(pathlen));
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, new_file_ver);
- logrecord = logit(logrecord, &ino, sizeof(ino));
- logrecord = logit(logrecord, &generation, sizeof(generation));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = logit(logrecord, &remote_ino, sizeof(remote_ino));
- logrecord = logit(logrecord, &remote_generation,
- sizeof(remote_generation));
- logrecord = log_version(logrecord, remote_version);
- logrecord = logit(logrecord, &rec->offset, sizeof(rec->offset));
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0, NULL, 0);
-
- BUFF_FREE(buffer);
-
- EXIT;
- return error;
-}
-
-/*
- * Check if the given record is at the end of the file. If it is, truncate
- * the lml to the record's offset, removing it. Repeat on prior record,
- * until we reach an active record or a reserved record (as defined by the
- * reservations list).
- */
-static int presto_truncate_lml_tail(struct presto_file_set *fset)
-{
- loff_t lml_tail;
- loff_t lml_last_rec;
- loff_t lml_last_recsize;
- loff_t local_offset;
- int recno;
- struct kml_prefix_hdr prefix;
- struct inode *inode = fset->fset_lml.fd_file->f_dentry->d_inode;
- void *handle;
- int rc;
-
- ENTRY;
- /* If someone else is already truncating the LML, return. */
- write_lock(&fset->fset_lml.fd_lock);
- if (fset->fset_lml.fd_truncating == 1 ) {
- write_unlock(&fset->fset_lml.fd_lock);
- EXIT;
- return 0;
- }
- /* someone is about to write to the end of the LML */
- if ( !list_empty(&fset->fset_lml.fd_reservations) ) {
- write_unlock(&fset->fset_lml.fd_lock);
- EXIT;
- return 0;
- }
- lml_tail = fset->fset_lml.fd_file->f_dentry->d_inode->i_size;
- /* Nothing to truncate?*/
- if (lml_tail == 0) {
- write_unlock(&fset->fset_lml.fd_lock);
- EXIT;
- return 0;
- }
- fset->fset_lml.fd_truncating = 1;
- write_unlock(&fset->fset_lml.fd_lock);
-
- presto_last_record(&fset->fset_lml, &lml_last_recsize,
- &lml_last_rec, &recno, lml_tail);
- /* Do we have a record to check? If not we have zeroes at the
- beginning of the file. -SHP
- */
- if (lml_last_recsize != 0) {
- local_offset = lml_last_rec - lml_last_recsize;
- rc = presto_fread(fset->fset_lml.fd_file, (char *)&prefix,
- sizeof(prefix), &local_offset);
- if (rc != sizeof(prefix)) {
- EXIT;
- goto tr_out;
- }
-
- if ( prefix.opcode != KML_OPCODE_NOOP ) {
- EXIT;
- rc = 0;
- /* We may have zeroes at the end of the file, should
- we clear them out? -SHP
- */
- goto tr_out;
- }
- } else
- lml_last_rec=0;
-
- handle = presto_trans_start(fset, inode, KML_OPCODE_TRUNC);
- if ( IS_ERR(handle) ) {
- EXIT;
- rc = -ENOMEM;
- goto tr_out;
- }
-
- rc = izo_do_truncate(fset, fset->fset_lml.fd_file->f_dentry,
- lml_last_rec - lml_last_recsize, lml_tail);
- presto_trans_commit(fset, handle);
- if ( rc == 0 ) {
- rc = 1;
- }
- EXIT;
-
- tr_out:
- CDEBUG(D_JOURNAL, "rc = %d\n", rc);
- write_lock(&fset->fset_lml.fd_lock);
- fset->fset_lml.fd_truncating = 0;
- write_unlock(&fset->fset_lml.fd_lock);
- return rc;
-}
-
-int presto_truncate_lml(struct presto_file_set *fset)
-{
- int rc;
- ENTRY;
-
- while ( (rc = presto_truncate_lml_tail(fset)) > 0);
- if ( rc < 0 && rc != -EALREADY) {
- CERROR("truncate_lml error %d\n", rc);
- }
- EXIT;
- return rc;
-}
-
-int presto_clear_lml_close(struct presto_file_set *fset, loff_t lml_offset)
-{
- int rc;
- struct kml_prefix_hdr record;
- loff_t offset = lml_offset;
-
- ENTRY;
-
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- CDEBUG(D_JOURNAL, "reading prefix: off %ld, size %Zd\n",
- (long)lml_offset, sizeof(record));
- rc = presto_fread(fset->fset_lml.fd_file, (char *)&record,
- sizeof(record), &offset);
-
- if ( rc != sizeof(record) ) {
- CERROR("presto: clear_lml io error %d\n", rc);
- EXIT;
- return -EIO;
- }
-
- /* overwrite the prefix */
- CDEBUG(D_JOURNAL, "overwriting prefix: off %ld\n", (long)lml_offset);
- record.opcode = KML_OPCODE_NOOP;
- offset = lml_offset;
- /* note: this does just a single transaction in the cache */
- rc = presto_fwrite(fset->fset_lml.fd_file, (char *)(&record),
- sizeof(record), &offset);
- if ( rc != sizeof(record) ) {
- EXIT;
- return -EIO;
- }
-
- EXIT;
- return 0;
-}
-
-
-
-/* now a journal function for every operation */
-
-int presto_journal_setattr(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry, struct presto_version *old_ver,
- struct izo_rollback_data *rb, struct iattr *iattr)
-{
- int opcode = KML_OPCODE_SETATTR;
- char *buffer, *path, *logrecord, record[316];
- struct dentry *root;
- __u32 uid, gid, mode, valid, flags, pathlen;
- __u64 fsize, mtime, ctime;
- int error, size;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- if (!dentry->d_inode || (dentry->d_inode->i_nlink == 0)
- || ((dentry->d_parent != dentry) && d_unhashed(dentry))) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dentry, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + sizeof(*old_ver) +
- sizeof(valid) + sizeof(mode) + sizeof(uid) + sizeof(gid) +
- sizeof(fsize) + sizeof(mtime) + sizeof(ctime) + sizeof(flags) +
- sizeof(pathlen) + sizeof(*rb) + sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- /* Only journal one kind of mtime, and not atime at all. Also don't
- * journal bogus data in iattr, to make the journal more compressible.
- */
- if (iattr->ia_valid & ATTR_MTIME_SET)
- iattr->ia_valid = iattr->ia_valid | ATTR_MTIME;
- valid = cpu_to_le32(iattr->ia_valid & ~(ATTR_ATIME | ATTR_MTIME_SET |
- ATTR_ATIME_SET));
- mode = iattr->ia_valid & ATTR_MODE ? cpu_to_le32(iattr->ia_mode): 0;
- uid = iattr->ia_valid & ATTR_UID ? cpu_to_le32(iattr->ia_uid): 0;
- gid = iattr->ia_valid & ATTR_GID ? cpu_to_le32(iattr->ia_gid): 0;
- fsize = iattr->ia_valid & ATTR_SIZE ? cpu_to_le64(iattr->ia_size): 0;
- mtime = iattr->ia_valid & ATTR_MTIME ? cpu_to_le64(iattr->ia_mtime.tv_sec): 0;
- ctime = iattr->ia_valid & ATTR_CTIME ? cpu_to_le64(iattr->ia_ctime.tv_sec): 0;
- flags = iattr->ia_valid & ATTR_ATTR_FLAG ?
- cpu_to_le32(iattr->ia_attr_flags): 0;
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen));
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, old_ver);
- logrecord = logit(logrecord, &valid, sizeof(valid));
- logrecord = logit(logrecord, &mode, sizeof(mode));
- logrecord = logit(logrecord, &uid, sizeof(uid));
- logrecord = logit(logrecord, &gid, sizeof(gid));
- logrecord = logit(logrecord, &fsize, sizeof(fsize));
- logrecord = logit(logrecord, &mtime, sizeof(mtime));
- logrecord = logit(logrecord, &ctime, sizeof(ctime));
- logrecord = logit(logrecord, &flags, sizeof(flags));
- logrecord = log_rollback(logrecord, rb);
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0, NULL, 0);
-
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-int presto_get_fileid(int minor, struct presto_file_set *fset,
- struct dentry *dentry)
-{
- int opcode = KML_OPCODE_GET_FILEID;
- struct rec_info rec;
- char *buffer, *path, *logrecord, record[4096]; /*include path*/
- struct dentry *root;
- __u32 uid, gid, pathlen;
- int error, size;
- struct kml_suffix *suffix;
-
- ENTRY;
-
- root = fset->fset_dentry;
-
- uid = cpu_to_le32(dentry->d_inode->i_uid);
- gid = cpu_to_le32(dentry->d_inode->i_gid);
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dentry, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + sizeof(pathlen) +
- size_round(le32_to_cpu(pathlen)) +
- sizeof(struct kml_suffix);
-
- CDEBUG(D_FILE, "kml size: %d\n", size);
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- memset(&rec, 0, sizeof(rec));
- rec.is_kml = 1;
- rec.size = size;
-
- logrecord = journal_log_prefix(record, opcode, &rec);
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = logit(logrecord, path, size_round(le32_to_cpu(pathlen)));
- suffix = (struct kml_suffix *)logrecord;
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, &rec);
- /* journal_log_suffix expects journal_log to set this */
- suffix->recno = 0;
-
- CDEBUG(D_FILE, "actual kml size: %Zd\n", logrecord - record);
- CDEBUG(D_FILE, "get fileid: uid %d, gid %d, path: %s\n", uid, gid,path);
-
- error = izo_upc_get_fileid(minor, size, record,
- size_round(le32_to_cpu(pathlen)), path,
- fset->fset_name);
-
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-int presto_journal_create(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_file_ver, int mode)
-{
- int opcode = KML_OPCODE_CREATE;
- char *buffer, *path, *logrecord, record[292];
- struct dentry *root;
- __u32 uid, gid, lmode, pathlen;
- int error, size;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- uid = cpu_to_le32(dentry->d_inode->i_uid);
- gid = cpu_to_le32(dentry->d_inode->i_gid);
- lmode = cpu_to_le32(mode);
-
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dentry, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
- sizeof(lmode) + sizeof(uid) + sizeof(gid) + sizeof(pathlen) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen));
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, tgt_dir_ver);
- logrecord = log_dentry_version(logrecord, dentry->d_parent);
- logrecord = log_version(logrecord, new_file_ver);
- logrecord = logit(logrecord, &lmode, sizeof(lmode));
- logrecord = logit(logrecord, &uid, sizeof(uid));
- logrecord = logit(logrecord, &gid, sizeof(gid));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0, NULL, 0);
-
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-int presto_journal_symlink(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry, const char *target,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_link_ver)
-{
- int opcode = KML_OPCODE_SYMLINK;
- char *buffer, *path, *logrecord, record[292];
- struct dentry *root;
- __u32 uid, gid, pathlen;
- __u32 targetlen = cpu_to_le32(strlen(target));
- int error, size;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- uid = cpu_to_le32(dentry->d_inode->i_uid);
- gid = cpu_to_le32(dentry->d_inode->i_gid);
-
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dentry, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
- sizeof(uid) + sizeof(gid) + sizeof(pathlen) +
- sizeof(targetlen) + sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen)) +
- size_round(le32_to_cpu(targetlen));
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, tgt_dir_ver);
- logrecord = log_dentry_version(logrecord, dentry->d_parent);
- logrecord = log_version(logrecord, new_link_ver);
- logrecord = logit(logrecord, &uid, sizeof(uid));
- logrecord = logit(logrecord, &gid, sizeof(gid));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = logit(logrecord, &targetlen, sizeof(targetlen));
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- target, size_round(le32_to_cpu(targetlen)),
- NULL, 0);
-
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-int presto_journal_mkdir(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_dir_ver, int mode)
-{
- int opcode = KML_OPCODE_MKDIR;
- char *buffer, *path, *logrecord, record[292];
- struct dentry *root;
- __u32 uid, gid, lmode, pathlen;
- int error, size;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- uid = cpu_to_le32(dentry->d_inode->i_uid);
- gid = cpu_to_le32(dentry->d_inode->i_gid);
- lmode = cpu_to_le32(mode);
-
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dentry, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
- sizeof(lmode) + sizeof(uid) + sizeof(gid) + sizeof(pathlen) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen));
- logrecord = journal_log_prefix(record, opcode, rec);
-
- logrecord = log_version(logrecord, tgt_dir_ver);
- logrecord = log_dentry_version(logrecord, dentry->d_parent);
- logrecord = log_version(logrecord, new_dir_ver);
- logrecord = logit(logrecord, &lmode, sizeof(lmode));
- logrecord = logit(logrecord, &uid, sizeof(uid));
- logrecord = logit(logrecord, &gid, sizeof(gid));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0, NULL, 0);
-
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-
-int
-presto_journal_rmdir(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dir, struct presto_version *tgt_dir_ver,
- struct presto_version *old_dir_ver,
- struct izo_rollback_data *rb, int len, const char *name)
-{
- int opcode = KML_OPCODE_RMDIR;
- char *buffer, *path, *logrecord, record[316];
- __u32 pathlen, llen;
- struct dentry *root;
- int error, size;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- llen = cpu_to_le32(len);
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dir, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
- sizeof(pathlen) + sizeof(llen) + sizeof(*rb) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- CDEBUG(D_JOURNAL, "path: %s (%d), name: %s (%d), size %d\n",
- path, pathlen, name, len, size);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen)) +
- size_round(len);
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, tgt_dir_ver);
- logrecord = log_dentry_version(logrecord, dir);
- logrecord = log_version(logrecord, old_dir_ver);
- logrecord = logit(logrecord, rb, sizeof(*rb));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = logit(logrecord, &llen, sizeof(llen));
- logrecord = journal_log_suffix(logrecord, record, fset, dir, rec);
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- name, size_round(len),
- NULL, 0);
-
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-
-int
-presto_journal_mknod(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dentry, struct presto_version *tgt_dir_ver,
- struct presto_version *new_node_ver, int mode,
- int dmajor, int dminor )
-{
- int opcode = KML_OPCODE_MKNOD;
- char *buffer, *path, *logrecord, record[292];
- struct dentry *root;
- __u32 uid, gid, lmode, lmajor, lminor, pathlen;
- int error, size;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- uid = cpu_to_le32(dentry->d_inode->i_uid);
- gid = cpu_to_le32(dentry->d_inode->i_gid);
- lmode = cpu_to_le32(mode);
- lmajor = cpu_to_le32(dmajor);
- lminor = cpu_to_le32(dminor);
-
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dentry, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
- sizeof(lmode) + sizeof(uid) + sizeof(gid) + sizeof(lmajor) +
- sizeof(lminor) + sizeof(pathlen) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen));
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, tgt_dir_ver);
- logrecord = log_dentry_version(logrecord, dentry->d_parent);
- logrecord = log_version(logrecord, new_node_ver);
- logrecord = logit(logrecord, &lmode, sizeof(lmode));
- logrecord = logit(logrecord, &uid, sizeof(uid));
- logrecord = logit(logrecord, &gid, sizeof(gid));
- logrecord = logit(logrecord, &lmajor, sizeof(lmajor));
- logrecord = logit(logrecord, &lminor, sizeof(lminor));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0, NULL, 0);
-
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-int
-presto_journal_link(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *src, struct dentry *tgt,
- struct presto_version *tgt_dir_ver,
- struct presto_version *new_link_ver)
-{
- int opcode = KML_OPCODE_LINK;
- char *buffer, *srcbuffer, *path, *srcpath, *logrecord, record[292];
- __u32 pathlen, srcpathlen;
- struct dentry *root;
- int error, size;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- BUFF_ALLOC(srcbuffer, NULL);
- srcpath = presto_path(src, root, srcbuffer, PAGE_SIZE);
- srcpathlen = cpu_to_le32(MYPATHLEN(srcbuffer, srcpath));
-
- BUFF_ALLOC(buffer, srcbuffer);
- path = presto_path(tgt, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
- sizeof(srcpathlen) + sizeof(pathlen) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen)) +
- size_round(le32_to_cpu(srcpathlen));
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, tgt_dir_ver);
- logrecord = log_dentry_version(logrecord, tgt->d_parent);
- logrecord = log_version(logrecord, new_link_ver);
- logrecord = logit(logrecord, &srcpathlen, sizeof(srcpathlen));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = journal_log_suffix(logrecord, record, fset, tgt, rec);
-
- error = presto_log(fset, rec, record, size,
- srcpath, size_round(le32_to_cpu(srcpathlen)),
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0);
-
- BUFF_FREE(srcbuffer);
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-
-int presto_journal_rename(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *src, struct dentry *tgt,
- struct presto_version *src_dir_ver,
- struct presto_version *tgt_dir_ver)
-{
- int opcode = KML_OPCODE_RENAME;
- char *buffer, *srcbuffer, *path, *srcpath, *logrecord, record[292];
- __u32 pathlen, srcpathlen;
- struct dentry *root;
- int error, size;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- BUFF_ALLOC(srcbuffer, NULL);
- srcpath = presto_path(src, root, srcbuffer, PAGE_SIZE);
- srcpathlen = cpu_to_le32(MYPATHLEN(srcbuffer, srcpath));
-
- BUFF_ALLOC(buffer, srcbuffer);
- path = presto_path(tgt, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + 4 * sizeof(*src_dir_ver) +
- sizeof(srcpathlen) + sizeof(pathlen) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen)) +
- size_round(le32_to_cpu(srcpathlen));
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, src_dir_ver);
- logrecord = log_dentry_version(logrecord, src->d_parent);
- logrecord = log_version(logrecord, tgt_dir_ver);
- logrecord = log_dentry_version(logrecord, tgt->d_parent);
- logrecord = logit(logrecord, &srcpathlen, sizeof(srcpathlen));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = journal_log_suffix(logrecord, record, fset, tgt, rec);
-
- error = presto_log(fset, rec, record, size,
- srcpath, size_round(le32_to_cpu(srcpathlen)),
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0);
-
- BUFF_FREE(buffer);
- BUFF_FREE(srcbuffer);
- EXIT;
- return error;
-}
-
-int presto_journal_unlink(struct rec_info *rec, struct presto_file_set *fset,
- struct dentry *dir, struct presto_version *tgt_dir_ver,
- struct presto_version *old_file_ver,
- struct izo_rollback_data *rb, struct dentry *dentry,
- char *old_target, int old_targetlen)
-{
- int opcode = KML_OPCODE_UNLINK;
- char *buffer, *path, *logrecord, record[316];
- const char *name;
- __u32 pathlen, llen;
- struct dentry *root;
- int error, size, len;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- name = dentry->d_name.name;
- len = dentry->d_name.len;
-
- llen = cpu_to_le32(len);
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dir, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
- sizeof(pathlen) + sizeof(llen) + sizeof(*rb) +
- sizeof(old_targetlen) + sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen)) + size_round(len) +
- size_round(old_targetlen);
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, tgt_dir_ver);
- logrecord = log_dentry_version(logrecord, dir);
- logrecord = log_version(logrecord, old_file_ver);
- logrecord = log_rollback(logrecord, rb);
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = logit(logrecord, &llen, sizeof(llen));
- logrecord = logit(logrecord, &old_targetlen, sizeof(old_targetlen));
- logrecord = journal_log_suffix(logrecord, record, fset, dir, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- name, size_round(len),
- old_target, size_round(old_targetlen));
-
- BUFF_FREE(buffer);
- EXIT;
- return error;
-}
-
-int
-presto_journal_close(struct rec_info *rec, struct presto_file_set *fset,
- struct presto_file_data *fd, struct dentry *dentry,
- struct presto_version *old_file_ver,
- struct presto_version *new_file_ver)
-{
- int opcode = KML_OPCODE_CLOSE;
- char *buffer, *path, *logrecord, record[316];
- struct dentry *root;
- int error, size, i;
- __u32 pathlen, generation;
- __u64 ino;
- __u32 open_fsuid;
- __u32 open_fsgid;
- __u32 open_ngroups;
- __u32 open_groups[NGROUPS_SMALL];
- __u32 open_mode;
- __u32 open_uid;
- __u32 open_gid;
-
- ENTRY;
-
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- if (!dentry->d_inode || (dentry->d_inode->i_nlink == 0)
- || ((dentry->d_parent != dentry) && d_unhashed(dentry))) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- if (fd) {
- open_ngroups = fd->fd_ngroups;
- for (i = 0; i < fd->fd_ngroups; i++)
- open_groups[i] = (__u32) fd->fd_groups[i];
- open_mode = fd->fd_mode;
- open_uid = fd->fd_uid;
- open_gid = fd->fd_gid;
- open_fsuid = fd->fd_fsuid;
- open_fsgid = fd->fd_fsgid;
- } else {
- open_ngroups = current->group_info->ngroups;
- for (i=0; i<current->group_info->ngroups; i++)
- open_groups[i] = (__u32) GROUP_AT(current->group_info,i);
- open_mode = dentry->d_inode->i_mode;
- open_uid = dentry->d_inode->i_uid;
- open_gid = dentry->d_inode->i_gid;
- open_fsuid = current->fsuid;
- open_fsgid = current->fsgid;
- }
- BUFF_ALLOC(buffer, NULL);
- path = presto_path(dentry, root, buffer, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
- ino = cpu_to_le64(dentry->d_inode->i_ino);
- generation = cpu_to_le32(dentry->d_inode->i_generation);
- size = sizeof(__u32) * open_ngroups +
- sizeof(open_mode) + sizeof(open_uid) + sizeof(open_gid) +
- sizeof(struct kml_prefix_hdr) + sizeof(*old_file_ver) +
- sizeof(*new_file_ver) + sizeof(ino) + sizeof(generation) +
- sizeof(pathlen) + sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen));
-
- logrecord = journal_log_prefix_with_groups_and_ids(
- record, opcode, rec, open_ngroups, open_groups,
- open_fsuid, open_fsgid);
- logrecord = logit(logrecord, &open_mode, sizeof(open_mode));
- logrecord = logit(logrecord, &open_uid, sizeof(open_uid));
- logrecord = logit(logrecord, &open_gid, sizeof(open_gid));
- logrecord = log_version(logrecord, old_file_ver);
- logrecord = log_version(logrecord, new_file_ver);
- logrecord = logit(logrecord, &ino, sizeof(ino));
- logrecord = logit(logrecord, &generation, sizeof(generation));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0, NULL, 0);
- BUFF_FREE(buffer);
-
- EXIT;
- return error;
-}
-
-int presto_rewrite_close(struct rec_info *rec, struct presto_file_set *fset,
- char *path, __u32 pathlen,
- int ngroups, __u32 *groups,
- __u64 ino, __u32 generation,
- struct presto_version *new_file_ver)
-{
- int opcode = KML_OPCODE_CLOSE;
- char *logrecord, record[292];
- struct dentry *root;
- int error, size;
-
- ENTRY;
-
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- size = sizeof(__u32) * ngroups +
- sizeof(struct kml_prefix_hdr) + sizeof(*new_file_ver) +
- sizeof(ino) + sizeof(generation) +
- sizeof(le32_to_cpu(pathlen)) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- rec->size = size + size_round(le32_to_cpu(pathlen));
-
- logrecord = journal_log_prefix_with_groups(record, opcode, rec,
- ngroups, groups);
- logrecord = log_version(logrecord, new_file_ver);
- logrecord = logit(logrecord, &ino, sizeof(ino));
- logrecord = logit(logrecord, &generation, sizeof(generation));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = journal_log_suffix(logrecord, record, fset, NULL, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- NULL, 0, NULL, 0);
-
- EXIT;
- return error;
-}
-
-
-/* write closes for the local close records in the LML */
-int presto_complete_lml(struct presto_file_set *fset)
-{
- __u32 groups[NGROUPS_SMALL];
- loff_t lml_offset;
- loff_t read_offset;
- char *buffer;
- void *handle;
- struct rec_info rec;
- struct close_rec {
- struct presto_version new_file_ver;
- __u64 ino;
- __u32 generation;
- __u32 pathlen;
- __u64 remote_ino;
- __u32 remote_generation;
- __u32 remote_version;
- __u64 lml_offset;
- } close_rec;
- struct file *file = fset->fset_lml.fd_file;
- struct kml_prefix_hdr prefix;
- int rc = 0;
- ENTRY;
-
- lml_offset = 0;
- again:
- if (lml_offset >= file->f_dentry->d_inode->i_size) {
- EXIT;
- return rc;
- }
-
- read_offset = lml_offset;
- rc = presto_fread(file, (char *)&prefix,
- sizeof(prefix), &read_offset);
- if ( rc != sizeof(prefix) ) {
- EXIT;
- CERROR("presto_complete_lml: ioerror - 1, tell Peter\n");
- return -EIO;
- }
-
- if ( prefix.opcode == KML_OPCODE_NOOP ) {
- lml_offset += prefix.len;
- goto again;
- }
-
- rc = presto_fread(file, (char *)groups,
- prefix.ngroups * sizeof(__u32), &read_offset);
- if ( rc != prefix.ngroups * sizeof(__u32) ) {
- EXIT;
- CERROR("presto_complete_lml: ioerror - 2, tell Peter\n");
- return -EIO;
- }
-
- rc = presto_fread(file, (char *)&close_rec,
- sizeof(close_rec), &read_offset);
- if ( rc != sizeof(close_rec) ) {
- EXIT;
- CERROR("presto_complete_lml: ioerror - 3, tell Peter\n");
- return -EIO;
- }
-
- /* is this a backfetch or a close record? */
- if ( le64_to_cpu(close_rec.remote_ino) != 0 ) {
- lml_offset += prefix.len;
- goto again;
- }
-
- BUFF_ALLOC(buffer, NULL);
- rc = presto_fread(file, (char *)buffer,
- le32_to_cpu(close_rec.pathlen), &read_offset);
- if ( rc != le32_to_cpu(close_rec.pathlen) ) {
- EXIT;
- CERROR("presto_complete_lml: ioerror - 4, tell Peter\n");
- return -EIO;
- }
-
- handle = presto_trans_start(fset, file->f_dentry->d_inode,
- KML_OPCODE_RELEASE);
- if ( IS_ERR(handle) ) {
- EXIT;
- return -ENOMEM;
- }
-
- rc = presto_clear_lml_close(fset, lml_offset);
- if ( rc ) {
- CERROR("error during clearing: %d\n", rc);
- presto_trans_commit(fset, handle);
- EXIT;
- return rc;
- }
-
- rc = presto_rewrite_close(&rec, fset, buffer, close_rec.pathlen,
- prefix.ngroups, groups,
- close_rec.ino, close_rec.generation,
- &close_rec.new_file_ver);
- if ( rc ) {
- CERROR("error during rewrite close: %d\n", rc);
- presto_trans_commit(fset, handle);
- EXIT;
- return rc;
- }
-
- presto_trans_commit(fset, handle);
- if ( rc ) {
- CERROR("error during truncation: %d\n", rc);
- EXIT;
- return rc;
- }
-
- lml_offset += prefix.len;
- CDEBUG(D_JOURNAL, "next LML record at: %ld\n", (long)lml_offset);
- goto again;
-
- EXIT;
- return -EINVAL;
-}
-
-
-#ifdef CONFIG_FS_EXT_ATTR
-/* Journal an ea operation. A NULL buffer implies the attribute is
- * getting deleted. In this case we simply change the opcode, but nothing
- * else is affected.
- */
-int presto_journal_set_ext_attr (struct rec_info *rec,
- struct presto_file_set *fset,
- struct dentry *dentry,
- struct presto_version *ver, const char *name,
- const char *buffer, int buffer_len,
- int flags)
-{
- int opcode = (buffer == NULL) ?
- KML_OPCODE_DELEXTATTR :
- KML_OPCODE_SETEXTATTR ;
- char *temp, *path, *logrecord, record[292];
- struct dentry *root;
- int error, size;
- __u32 namelen=cpu_to_le32(strnlen(name,PRESTO_EXT_ATTR_NAME_MAX));
- __u32 buflen=(buffer != NULL)? cpu_to_le32(buffer_len): cpu_to_le32(0);
- __u32 mode, pathlen;
-
- ENTRY;
- if ( presto_no_journal(fset) ) {
- EXIT;
- return 0;
- }
-
- if (!dentry->d_inode || (dentry->d_inode->i_nlink == 0)
- || ((dentry->d_parent != dentry) && d_unhashed(dentry))) {
- EXIT;
- return 0;
- }
-
- root = fset->fset_dentry;
-
- BUFF_ALLOC(temp, NULL);
- path = presto_path(dentry, root, temp, PAGE_SIZE);
- pathlen = cpu_to_le32(MYPATHLEN(temp, path));
-
- flags=cpu_to_le32(flags);
- /* Ugly, but needed. posix ACLs change the mode without using
- * setattr, we need to record these changes. The EA code per se
- * is not really affected.
- */
- mode=cpu_to_le32(dentry->d_inode->i_mode);
-
- size = sizeof(__u32) * current->group_info->ngroups +
- sizeof(struct kml_prefix_hdr) +
- 2 * sizeof(struct presto_version) +
- sizeof(flags) + sizeof(mode) + sizeof(namelen) +
- sizeof(buflen) + sizeof(pathlen) +
- sizeof(struct kml_suffix);
-
- if ( size > sizeof(record) )
- CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
-
- rec->is_kml = 1;
- /* Make space for a path, a attr name and value*/
- /* We use the buflen instead of buffer_len to make sure that we
- * journal the right length. This may be a little paranoid, but
- * with 64 bits round the corner, I would rather be safe than sorry!
- * Also this handles deletes with non-zero buffer_lengths correctly.
- * SHP
- */
- rec->size = size + size_round(le32_to_cpu(pathlen)) +
- size_round(le32_to_cpu(namelen)) +
- size_round(le32_to_cpu(buflen));
-
- logrecord = journal_log_prefix(record, opcode, rec);
- logrecord = log_version(logrecord, ver);
- logrecord = log_dentry_version(logrecord, dentry);
- logrecord = logit(logrecord, &flags, sizeof(flags));
- logrecord = logit(logrecord, &mode, sizeof(flags));
- logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
- logrecord = logit(logrecord, &namelen, sizeof(namelen));
- logrecord = logit(logrecord, &buflen, sizeof(buflen));
- logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
-
- error = presto_log(fset, rec, record, size,
- path, size_round(le32_to_cpu(pathlen)),
- name, size_round(le32_to_cpu(namelen)),
- buffer, size_round(le32_to_cpu(buflen)));
-
- BUFF_FREE(temp);
- EXIT;
- return error;
-}
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-#include <linux/ext2_fs.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#if defined(CONFIG_EXT2_FS)
-
-/* EXT2 has no journalling, so these functions do nothing */
-static loff_t presto_e2_freespace(struct presto_cache *cache,
- struct super_block *sb)
-{
- unsigned long freebl = le32_to_cpu(EXT2_SB(sb)->s_es->s_free_blocks_count);
- unsigned long avail = freebl - le32_to_cpu(EXT2_SB(sb)->s_es->s_r_blocks_count);
- return (avail << EXT2_BLOCK_SIZE_BITS(sb));
-}
-
-/* start the filesystem journal operations */
-static void *presto_e2_trans_start(struct presto_file_set *fset, struct inode *inode, int op)
-{
- __u32 avail_kmlblocks;
-
- if ( presto_no_journal(fset) ||
- strcmp(fset->fset_cache->cache_type, "ext2"))
- return NULL;
-
- avail_kmlblocks = EXT2_SB(inode->i_sb)->s_es->s_free_blocks_count;
-
- if ( avail_kmlblocks < 3 ) {
- return ERR_PTR(-ENOSPC);
- }
-
- if ( (op != KML_OPCODE_UNLINK && op != KML_OPCODE_RMDIR)
- && avail_kmlblocks < 6 ) {
- return ERR_PTR(-ENOSPC);
- }
- return (void *) 1;
-}
-
-static void presto_e2_trans_commit(struct presto_file_set *fset, void *handle)
-{
- do {} while (0);
-}
-
-static int presto_e2_has_all_data(struct inode *inode)
-{
- BUG();
- return 0;
-}
-
-struct journal_ops presto_ext2_journal_ops = {
- .tr_all_data = presto_e2_has_all_data,
- .tr_avail = presto_e2_freespace,
- .tr_start = presto_e2_trans_start,
- .tr_commit = presto_e2_trans_commit,
- .tr_journal_data = NULL
-};
-
-#endif /* CONFIG_EXT2_FS */
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
- * Copyright (C) 2000 Red Hat, Inc.
- * Copyright (C) 2000 Los Alamos National Laboratory
- * Copyright (C) 2000 TurboLinux, Inc.
- * Copyright (C) 2001 Mountain View Data, Inc.
- * Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/types.h>
-#include <linux/param.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-#if defined(CONFIG_EXT3_FS) || defined (CONFIG_EXT3_FS_MODULE)
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
-#endif
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#if defined(CONFIG_EXT3_FS) || defined (CONFIG_EXT3_FS_MODULE)
-
-#define MAX_PATH_BLOCKS(inode) (PATH_MAX >> EXT3_BLOCK_SIZE_BITS((inode)->i_sb))
-#define MAX_NAME_BLOCKS(inode) (NAME_MAX >> EXT3_BLOCK_SIZE_BITS((inode)->i_sb))
-
-/* space requirements:
- presto_do_truncate:
- used to truncate the KML forward to next fset->chunksize boundary
- - zero partial block
- - update inode
- presto_write_record:
- write header (< one block)
- write one path (< MAX_PATHLEN)
- possibly write another path (< MAX_PATHLEN)
- write suffix (< one block)
- presto_update_last_rcvd
- write one block
-*/
-
-static loff_t presto_e3_freespace(struct presto_cache *cache,
- struct super_block *sb)
-{
- loff_t freebl = le32_to_cpu(EXT3_SB(sb)->s_es->s_free_blocks_count);
- loff_t avail = freebl -
- le32_to_cpu(EXT3_SB(sb)->s_es->s_r_blocks_count);
- return (avail << EXT3_BLOCK_SIZE_BITS(sb));
-}
-
-/* start the filesystem journal operations */
-static void *presto_e3_trans_start(struct presto_file_set *fset,
- struct inode *inode,
- int op)
-{
- int jblocks;
- int trunc_blks, one_path_blks, extra_path_blks,
- extra_name_blks, lml_blks;
- __u32 avail_kmlblocks;
- handle_t *handle;
-
- if ( presto_no_journal(fset) ||
- strcmp(fset->fset_cache->cache_type, "ext3"))
- {
- CDEBUG(D_JOURNAL, "got cache_type \"%s\"\n",
- fset->fset_cache->cache_type);
- return NULL;
- }
-
- avail_kmlblocks = EXT3_SB(inode->i_sb)->s_es->s_free_blocks_count;
-
- if ( avail_kmlblocks < 3 ) {
- return ERR_PTR(-ENOSPC);
- }
-
- if ( (op != KML_OPCODE_UNLINK && op != KML_OPCODE_RMDIR)
- && avail_kmlblocks < 6 ) {
- return ERR_PTR(-ENOSPC);
- }
-
- /* Need journal space for:
- at least three writes to KML (two one block writes, one a path)
- possibly a second name (unlink, rmdir)
- possibly a second path (symlink, rename)
- a one block write to the last rcvd file
- */
-
- trunc_blks = EXT3_DATA_TRANS_BLOCKS + 1;
- one_path_blks = 4*EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode) + 3;
- lml_blks = 4*EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode) + 2;
- extra_path_blks = EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode);
- extra_name_blks = EXT3_DATA_TRANS_BLOCKS + MAX_NAME_BLOCKS(inode);
-
- /* additional blocks appear for "two pathname" operations
- and operations involving the LML records
- */
- switch (op) {
- case KML_OPCODE_TRUNC:
- jblocks = one_path_blks + extra_name_blks + trunc_blks
- + EXT3_DELETE_TRANS_BLOCKS;
- break;
- case KML_OPCODE_KML_TRUNC:
- /* Hopefully this is a little better, but I'm still mostly
- * guessing here. */
- /* unlink 1 */
- jblocks = extra_name_blks + trunc_blks +
- EXT3_DELETE_TRANS_BLOCKS + 2;
-
- /* unlink 2 */
- jblocks += extra_name_blks + trunc_blks +
- EXT3_DELETE_TRANS_BLOCKS + 2;
-
- /* rename 1 */
- jblocks += 2 * extra_path_blks + trunc_blks +
- 2 * EXT3_DATA_TRANS_BLOCKS + 2 + 3;
-
- /* rename 2 */
- jblocks += 2 * extra_path_blks + trunc_blks +
- 2 * EXT3_DATA_TRANS_BLOCKS + 2 + 3;
- break;
- case KML_OPCODE_RELEASE:
- /*
- jblocks = one_path_blks + lml_blks + 2*trunc_blks;
- */
- jblocks = one_path_blks;
- break;
- case KML_OPCODE_SETATTR:
- jblocks = one_path_blks + trunc_blks + 1 ;
- break;
- case KML_OPCODE_CREATE:
- jblocks = one_path_blks + trunc_blks
- + EXT3_DATA_TRANS_BLOCKS + 3 + 2;
- break;
- case KML_OPCODE_LINK:
- jblocks = one_path_blks + trunc_blks
- + EXT3_DATA_TRANS_BLOCKS + 2;
- break;
- case KML_OPCODE_UNLINK:
- jblocks = one_path_blks + extra_name_blks + trunc_blks
- + EXT3_DELETE_TRANS_BLOCKS + 2;
- break;
- case KML_OPCODE_SYMLINK:
- jblocks = one_path_blks + extra_path_blks + trunc_blks
- + EXT3_DATA_TRANS_BLOCKS + 5;
- break;
- case KML_OPCODE_MKDIR:
- jblocks = one_path_blks + trunc_blks
- + EXT3_DATA_TRANS_BLOCKS + 4 + 2;
- break;
- case KML_OPCODE_RMDIR:
- jblocks = one_path_blks + extra_name_blks + trunc_blks
- + EXT3_DELETE_TRANS_BLOCKS + 1;
- break;
- case KML_OPCODE_MKNOD:
- jblocks = one_path_blks + trunc_blks +
- EXT3_DATA_TRANS_BLOCKS + 3 + 2;
- break;
- case KML_OPCODE_RENAME:
- jblocks = one_path_blks + extra_path_blks + trunc_blks +
- 2 * EXT3_DATA_TRANS_BLOCKS + 2 + 3;
- break;
- case KML_OPCODE_WRITE:
- jblocks = one_path_blks;
- /* add this when we can wrap our transaction with
- that of ext3_file_write (ordered writes)
- + EXT3_DATA_TRANS_BLOCKS;
- */
- break;
- default:
- CDEBUG(D_JOURNAL, "invalid operation %d for journal\n", op);
- return NULL;
- }
-
- CDEBUG(D_JOURNAL, "creating journal handle (%d blocks) for op %d\n",
- jblocks, op);
- /* journal_start/stop does not do its own locking while updating
- * the handle/transaction information. Hence we create our own
- * critical section to protect these calls. -SHP
- */
- lock_kernel();
- handle = journal_start(EXT3_JOURNAL(inode), jblocks);
- unlock_kernel();
- return handle;
-}
-
-static void presto_e3_trans_commit(struct presto_file_set *fset, void *handle)
-{
- if ( presto_no_journal(fset) || !handle)
- return;
-
- /* See comments before journal_start above. -SHP */
- lock_kernel();
- journal_stop(handle);
- unlock_kernel();
-}
-
-static void presto_e3_journal_file_data(struct inode *inode)
-{
-#ifdef EXT3_JOURNAL_DATA_FL
- EXT3_I(inode)->i_flags |= EXT3_JOURNAL_DATA_FL;
-#else
-#warning You must have a facility to enable journaled writes for recovery!
-#endif
-}
-
-/* The logic here is a slightly modified version of ext3/inode.c:block_to_path
- */
-static int presto_e3_has_all_data(struct inode *inode)
-{
- int ptrs = EXT3_ADDR_PER_BLOCK(inode->i_sb);
- int ptrs_bits = EXT3_ADDR_PER_BLOCK_BITS(inode->i_sb);
- const long direct_blocks = EXT3_NDIR_BLOCKS,
- indirect_blocks = ptrs,
- double_blocks = (1 << (ptrs_bits * 2));
- long block = (inode->i_size + inode->i_sb->s_blocksize - 1) >>
- inode->i_sb->s_blocksize_bits;
-
- ENTRY;
-
- if (inode->i_size == 0) {
- EXIT;
- return 1;
- }
-
- if (block < direct_blocks) {
- /* No indirect blocks, no problem. */
- } else if (block < indirect_blocks + direct_blocks) {
- block++;
- } else if (block < double_blocks + indirect_blocks + direct_blocks) {
- block += 2;
- } else if (((block - double_blocks - indirect_blocks - direct_blocks)
- >> (ptrs_bits * 2)) < ptrs) {
- block += 3;
- }
-
- block *= (inode->i_sb->s_blocksize / 512);
-
- CDEBUG(D_CACHE, "Need %ld blocks, have %ld.\n", block, inode->i_blocks);
-
- if (block > inode->i_blocks) {
- EXIT;
- return 0;
- }
-
- EXIT;
- return 1;
-}
-
-struct journal_ops presto_ext3_journal_ops = {
- .tr_all_data = presto_e3_has_all_data,
- .tr_avail = presto_e3_freespace,
- .tr_start = presto_e3_trans_start,
- .tr_commit = presto_e3_trans_commit,
- .tr_journal_data = presto_e3_journal_file_data,
- .tr_ilookup = presto_iget_ilookup
-};
-
-#endif /* CONFIG_EXT3_FS */
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
- * Copyright (C) 2000 Red Hat, Inc.
- * Copyright (C) 2000 Los Alamos National Laboratory
- * Copyright (C) 2000 TurboLinux, Inc.
- * Copyright (C) 2001 Mountain View Data, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/types.h>
-#include <linux/param.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-#ifdef CONFIG_OBDFS_FS
-#include /usr/src/obd/include/linux/obdfs.h
-#endif
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#ifdef CONFIG_OBDFS_FS
-
-
-static unsigned long presto_obdfs_freespace(struct presto_file_set *fset,
- struct super_block *sb)
-{
- return 0x0fffff;
-}
-
-/* start the filesystem journal operations */
-static void *presto_obdfs_trans_start(struct presto_file_set *fset,
- struct inode *inode,
- int op)
-{
-
- return (void *) 1;
-}
-
-#if 0
- int jblocks;
- int trunc_blks, one_path_blks, extra_path_blks,
- extra_name_blks, lml_blks;
- __u32 avail_kmlblocks;
-
- if ( presto_no_journal(fset) ||
- strcmp(fset->fset_cache->cache_type, "ext3"))
- {
- CDEBUG(D_JOURNAL, "got cache_type \"%s\"\n",
- fset->fset_cache->cache_type);
- return NULL;
- }
-
- avail_kmlblocks = inode->i_sb->u.ext3_sb.s_es->s_free_blocks_count;
-
- if ( avail_kmlblocks < 3 ) {
- return ERR_PTR(-ENOSPC);
- }
-
- if ( (op != PRESTO_OP_UNLINK && op != PRESTO_OP_RMDIR)
- && avail_kmlblocks < 6 ) {
- return ERR_PTR(-ENOSPC);
- }
-
- /* Need journal space for:
- at least three writes to KML (two one block writes, one a path)
- possibly a second name (unlink, rmdir)
- possibly a second path (symlink, rename)
- a one block write to the last rcvd file
- */
-
- trunc_blks = EXT3_DATA_TRANS_BLOCKS + 1;
- one_path_blks = 4*EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode) + 3;
- lml_blks = 4*EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode) + 2;
- extra_path_blks = EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode);
- extra_name_blks = EXT3_DATA_TRANS_BLOCKS + MAX_NAME_BLOCKS(inode);
-
- /* additional blocks appear for "two pathname" operations
- and operations involving the LML records
- */
- switch (op) {
- case PRESTO_OP_TRUNC:
- jblocks = one_path_blks + extra_name_blks + trunc_blks
- + EXT3_DELETE_TRANS_BLOCKS;
- break;
- case PRESTO_OP_RELEASE:
- /*
- jblocks = one_path_blks + lml_blks + 2*trunc_blks;
- */
- jblocks = one_path_blks;
- break;
- case PRESTO_OP_SETATTR:
- jblocks = one_path_blks + trunc_blks + 1 ;
- break;
- case PRESTO_OP_CREATE:
- jblocks = one_path_blks + trunc_blks
- + EXT3_DATA_TRANS_BLOCKS + 3;
- break;
- case PRESTO_OP_LINK:
- jblocks = one_path_blks + trunc_blks
- + EXT3_DATA_TRANS_BLOCKS;
- break;
- case PRESTO_OP_UNLINK:
- jblocks = one_path_blks + extra_name_blks + trunc_blks
- + EXT3_DELETE_TRANS_BLOCKS;
- break;
- case PRESTO_OP_SYMLINK:
- jblocks = one_path_blks + extra_path_blks + trunc_blks
- + EXT3_DATA_TRANS_BLOCKS + 5;
- break;
- case PRESTO_OP_MKDIR:
- jblocks = one_path_blks + trunc_blks
- + EXT3_DATA_TRANS_BLOCKS + 4;
- break;
- case PRESTO_OP_RMDIR:
- jblocks = one_path_blks + extra_name_blks + trunc_blks
- + EXT3_DELETE_TRANS_BLOCKS;
- break;
- case PRESTO_OP_MKNOD:
- jblocks = one_path_blks + trunc_blks +
- EXT3_DATA_TRANS_BLOCKS + 3;
- break;
- case PRESTO_OP_RENAME:
- jblocks = one_path_blks + extra_path_blks + trunc_blks +
- 2 * EXT3_DATA_TRANS_BLOCKS + 2;
- break;
- case PRESTO_OP_WRITE:
- jblocks = one_path_blks;
- /* add this when we can wrap our transaction with
- that of ext3_file_write (ordered writes)
- + EXT3_DATA_TRANS_BLOCKS;
- */
- break;
- default:
- CDEBUG(D_JOURNAL, "invalid operation %d for journal\n", op);
- return NULL;
- }
-
- CDEBUG(D_JOURNAL, "creating journal handle (%d blocks)\n", jblocks);
- return journal_start(EXT3_JOURNAL(inode), jblocks);
-}
-#endif
-
-void presto_obdfs_trans_commit(struct presto_file_set *fset, void *handle)
-{
-#if 0
- if ( presto_no_journal(fset) || !handle)
- return;
-
- journal_stop(handle);
-#endif
-}
-
-void presto_obdfs_journal_file_data(struct inode *inode)
-{
-#ifdef EXT3_JOURNAL_DATA_FL
- inode->u.ext3_i.i_flags |= EXT3_JOURNAL_DATA_FL;
-#else
-#warning You must have a facility to enable journaled writes for recovery!
-#endif
-}
-
-struct journal_ops presto_obdfs_journal_ops = {
- .tr_avail = presto_obdfs_freespace,
- .tr_start = presto_obdfs_trans_start,
- .tr_commit = presto_obdfs_trans_commit,
- .tr_journal_data = presto_obdfs_journal_file_data
-};
-
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
- * Copyright (C) 2000 Red Hat, Inc.
- * Copyright (C) 2000 Los Alamos National Laboratory
- * Copyright (C) 2000 TurboLinux, Inc.
- * Copyright (C) 2001 Mountain View Data, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/types.h>
-#include <linux/param.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-#if 0
-#if defined(CONFIG_REISERFS_FS) || defined(CONFIG_REISERFS_FS_MODULE)
-#include <linux/reiserfs_fs.h>
-#include <linux/reiserfs_fs_sb.h>
-#include <linux/reiserfs_fs_i.h>
-#endif
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#if defined(CONFIG_REISERFS_FS) || defined(CONFIG_REISERFS_FS_MODULE)
-
-
-static loff_t presto_reiserfs_freespace(struct presto_cache *cache,
- struct super_block *sb)
-{
- struct reiserfs_super_block * rs = SB_DISK_SUPER_BLOCK (sb);
- loff_t avail;
-
- avail = le32_to_cpu(rs->s_free_blocks) *
- le16_to_cpu(rs->s_blocksize);
- return avail;
-}
-
-/* start the filesystem journal operations */
-static void *presto_reiserfs_trans_start(struct presto_file_set *fset,
- struct inode *inode,
- int op)
-{
- int jblocks;
- __u32 avail_kmlblocks;
- struct reiserfs_transaction_handle *th ;
-
- PRESTO_ALLOC(th, sizeof(*th));
- if (!th) {
- CERROR("presto: No memory for trans handle\n");
- return NULL;
- }
-
- avail_kmlblocks = presto_reiserfs_freespace(fset->fset_cache,
- inode->i_sb);
- if ( presto_no_journal(fset) ||
- strcmp(fset->fset_cache->cache_type, "reiserfs"))
- {
- CDEBUG(D_JOURNAL, "got cache_type \"%s\"\n",
- fset->fset_cache->cache_type);
- return NULL;
- }
-
- if ( avail_kmlblocks < 3 ) {
- return ERR_PTR(-ENOSPC);
- }
-
- if ( (op != PRESTO_OP_UNLINK && op != PRESTO_OP_RMDIR)
- && avail_kmlblocks < 6 ) {
- return ERR_PTR(-ENOSPC);
- }
-
- jblocks = 3 + JOURNAL_PER_BALANCE_CNT * 4;
- CDEBUG(D_JOURNAL, "creating journal handle (%d blocks)\n", jblocks);
-
- lock_kernel();
- journal_begin(th, inode->i_sb, jblocks);
- unlock_kernel();
- return th;
-}
-
-static void presto_reiserfs_trans_commit(struct presto_file_set *fset,
- void *handle)
-{
- int jblocks;
- jblocks = 3 + JOURNAL_PER_BALANCE_CNT * 4;
-
- lock_kernel();
- journal_end(handle, fset->fset_cache->cache_sb, jblocks);
- unlock_kernel();
- PRESTO_FREE(handle, sizeof(struct reiserfs_transaction_handle));
-}
-
-static void presto_reiserfs_journal_file_data(struct inode *inode)
-{
-#ifdef EXT3_JOURNAL_DATA_FL
- inode->u.ext3_i.i_flags |= EXT3_JOURNAL_DATA_FL;
-#else
-#warning You must have a facility to enable journaled writes for recovery!
-#endif
-}
-
-static int presto_reiserfs_has_all_data(struct inode *inode)
-{
- BUG();
- return 0;
-}
-
-struct journal_ops presto_reiserfs_journal_ops = {
- .tr_all_data = presto_reiserfs_has_all_data,
- .tr_avail = presto_reiserfs_freespace,
- .tr_start = presto_reiserfs_trans_start,
- .tr_commit = presto_reiserfs_trans_commit,
- .tr_journal_data = presto_reiserfs_journal_file_data
-};
-
-#endif
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
- * Copyright (C) 2000 Red Hat, Inc.
- * Copyright (C) 2000 Los Alamos National Laboratory
- * Copyright (C) 2000 TurboLinux, Inc.
- * Copyright (C) 2001 Mountain View Data, Inc.
- * Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/types.h>
-#include <linux/param.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-#if defined(CONFIG_TMPFS)
-#include <linux/jbd.h>
-#if defined(CONFIG_EXT3)
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
-#endif
-#endif
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#if defined(CONFIG_TMPFS)
-
-/* space requirements:
- presto_do_truncate:
- used to truncate the KML forward to next fset->chunksize boundary
- - zero partial block
- - update inode
- presto_write_record:
- write header (< one block)
- write one path (< MAX_PATHLEN)
- possibly write another path (< MAX_PATHLEN)
- write suffix (< one block)
- presto_update_last_rcvd
- write one block
-*/
-
-static loff_t presto_tmpfs_freespace(struct presto_cache *cache,
- struct super_block *sb)
-{
- return (1<<30);
-}
-
-/* start the filesystem journal operations */
-static void *presto_tmpfs_trans_start(struct presto_file_set *fset,
- struct inode *inode,
- int op)
-{
- return (void *)1;
-}
-
-static void presto_tmpfs_trans_commit(struct presto_file_set *fset, void *handle)
-{
- return;
-}
-
-static void presto_tmpfs_journal_file_data(struct inode *inode)
-{
- return;
-}
-
-/* The logic here is a slightly modified version of ext3/inode.c:block_to_path
- */
-static int presto_tmpfs_has_all_data(struct inode *inode)
-{
- return 0;
-}
-
-struct journal_ops presto_tmpfs_journal_ops = {
- .tr_all_data = presto_tmpfs_has_all_data,
- .tr_avail = presto_tmpfs_freespace,
- .tr_start = presto_tmpfs_trans_start,
- .tr_commit = presto_tmpfs_trans_commit,
- .tr_journal_data = presto_tmpfs_journal_file_data,
- .tr_ilookup = presto_tmpfs_ilookup,
- .tr_add_ilookup = presto_add_ilookup_dentry
-};
-
-#endif /* CONFIG_EXT3_FS */
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-#if 0
-/* XFS Support not there yet */
-#ifdef CONFIG_FS_XFS
-#include <linux/xfs_fs.h>
-#endif
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-#include "intermezzo_journal.h"
-
-#if 0
-
-/* XFS has journalling, but these functions do nothing yet... */
-
-static unsigned long presto_xfs_freespace(struct presto_file_set *fset,
- struct super_block *sb)
-{
-
-#if 0
- vfs_t *vfsp = LINVFS_GET_VFS(sb);
- struct statvfs_t stat;
- bhv_desc_t *bdp;
- unsigned long avail;
- int rc;
-
- VFS_STATVFS(vfsp, &stat, NULL, rc);
- avail = statp.f_bfree;
-
- return sbp->sb_fdblocks;
-#endif
- return 0x0fffffff;
-}
-
-
-/* start the filesystem journal operations */
-static void *
-presto_xfs_trans_start(struct presto_file_set *fset,
- struct inode *inode, int op)
-{
- int xfs_op;
- /* do a free blocks check as in journal_ext3? does anything protect
- * the space in that case or can it disappear out from under us
- * anyway? */
-
-/* copied from xfs_trans.h, skipping header maze for now */
-#define XFS_TRANS_SETATTR_NOT_SIZE 1
-#define XFS_TRANS_SETATTR_SIZE 2
-#define XFS_TRANS_INACTIVE 3
-#define XFS_TRANS_CREATE 4
-#define XFS_TRANS_CREATE_TRUNC 5
-#define XFS_TRANS_TRUNCATE_FILE 6
-#define XFS_TRANS_REMOVE 7
-#define XFS_TRANS_LINK 8
-#define XFS_TRANS_RENAME 9
-#define XFS_TRANS_MKDIR 10
-#define XFS_TRANS_RMDIR 11
-#define XFS_TRANS_SYMLINK 12
-
- /* map the op onto the values for XFS so it can do reservation. if
- * we don't have enough info to differentiate between e.g. setattr
- * with or without size, what do we do? will it adjust? */
- switch (op) {
- case PRESTO_OP_SETATTR:
- /* or XFS_TRANS_SETATTR_NOT_SIZE? */
- xfs_op = XFS_TRANS_SETATTR_SIZE;
- break;
- case PRESTO_OP_CREATE:
- /* or CREATE_TRUNC? */
- xfs_op = XFS_TRANS_CREATE;
- break;
- case PRESTO_OP_LINK:
- xfs_op = XFS_TRANS_LINK;
- break;
- case PRESTO_OP_UNLINK:
- xfs_op = XFS_TRANS_REMOVE;
- break;
- case PRESTO_OP_SYMLINK:
- xfs_op = XFS_TRANS_SYMLINK;
- break;
- case PRESTO_OP_MKDIR:
- xfs_op = XFS_TRANS_MKDIR;
- break;
- case PRESTO_OP_RMDIR:
- xfs_op = XFS_TRANS_RMDIR;
- break;
- case PRESTO_OP_MKNOD:
- /* XXX can't find an analog for mknod? */
- xfs_op = XFS_TRANS_CREATE;
- break;
- case PRESTO_OP_RENAME:
- xfs_op = XFS_TRANS_RENAME;
- break;
- default:
- CDEBUG(D_JOURNAL, "invalid operation %d for journal\n", op);
- return NULL;
- }
-
- return xfs_trans_start(inode, xfs_op);
-}
-
-static void presto_xfs_trans_commit(struct presto_file_set *fset, void *handle)
-{
- /* assert (handle == current->j_handle) */
- xfs_trans_stop(handle);
-}
-
-static void presto_xfs_journal_file_data(struct inode *inode)
-{
- return;
-}
-
-static int presto_xfs_has_all_data(struct inode *inode)
-{
- BUG();
- return 0;
-}
-
-struct journal_ops presto_xfs_journal_ops = {
- .tr_all_data = presto_xfs_has_all_data,
- .tr_avail = presto_xfs_freespace,
- .tr_start = presto_xfs_trans_start,
- .tr_commit = presto_xfs_trans_commit,
- .tr_journal_data = presto_xfs_journal_file_data
-};
-
-#endif
-
-
-#endif /* CONFIG_XFS_FS */
-
+++ /dev/null
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_upcall.h"
-#include "intermezzo_psdev.h"
-#include "intermezzo_kml.h"
-
-static struct presto_file_set * kml_getfset (char *path)
-{
- return presto_path2fileset(path);
-}
-
-/* Send the KML buffer and related volume info into kernel */
-int begin_kml_reint (struct file *file, unsigned long arg)
-{
- struct {
- char *volname;
- int namelen;
- char *recbuf;
- int reclen; /* int newpos; */
- } input;
- struct kml_fsdata *kml_fsdata = NULL;
- struct presto_file_set *fset = NULL;
- char *path;
- int error;
-
- ENTRY;
- /* allocate buffer & copy it to kernel space */
- if (copy_from_user(&input, (char *)arg, sizeof(input))) {
- EXIT;
- return -EFAULT;
- }
-
- if (input.reclen > kml_fsdata->kml_maxsize)
- return -ENOMEM; /* we'll find solution to this in the future */
-
- PRESTO_ALLOC(path, char *, input.namelen + 1);
- if ( !path ) {
- EXIT;
- return -ENOMEM;
- }
- if (copy_from_user(path, input.volname, input.namelen)) {
- PRESTO_FREE(path, input.namelen + 1);
- EXIT;
- return -EFAULT;
- }
- path[input.namelen] = '\0';
- fset = kml_getfset (path);
- PRESTO_FREE(path, input.namelen + 1);
-
- kml_fsdata = FSET_GET_KMLDATA(fset);
- /* read the buf from user memory here */
- if (copy_from_user(kml_fsdata->kml_buf, input.recbuf, input.reclen)) {
- EXIT;
- return -EFAULT;
- }
- kml_fsdata->kml_len = input.reclen;
-
- decode_kmlrec (&kml_fsdata->kml_reint_cache,
- kml_fsdata->kml_buf, kml_fsdata->kml_len);
-
- kml_fsdata->kml_reint_current = kml_fsdata->kml_reint_cache.next;
- kml_fsdata->kml_reintpos = 0;
- kml_fsdata->kml_count = 0;
- return 0;
-}
-
-/* DO_KML_REINT */
-int do_kml_reint (struct file *file, unsigned long arg)
-{
- struct {
- char *volname;
- int namelen;
- char *path;
- int pathlen;
- int recno;
- int offset;
- int len;
- int generation;
- __u64 ino;
- } input;
- int error;
- char *path;
- struct kml_rec *close_rec;
- struct kml_fsdata *kml_fsdata;
- struct presto_file_set *fset;
-
- ENTRY;
- if (copy_from_user(&input, (char *)arg, sizeof(input))) {
- EXIT;
- return -EFAULT;
- }
- PRESTO_ALLOC(path, char *, input.namelen + 1);
- if ( !path ) {
- EXIT;
- return -ENOMEM;
- }
- if (copy_from_user(path, input.volname, input.namelen)) {
- PRESTO_FREE(path, input.namelen + 1);
- EXIT;
- return -EFAULT;
- }
- path[input.namelen] = '\0';
- fset = kml_getfset (path);
- PRESTO_FREE(path, input.namelen + 1);
-
- kml_fsdata = FSET_GET_KMLDATA(fset);
-
- error = kml_reintbuf(kml_fsdata,
- fset->fset_mtpt->d_name.name,
- &close_rec);
-
- if (error == KML_CLOSE_BACKFETCH && close_rec != NULL) {
- struct kml_close *close = &close_rec->rec_kml.close;
- input.ino = close->ino;
- input.generation = close->generation;
- if (strlen (close->path) + 1 < input.pathlen) {
- strcpy (input.path, close->path);
- input.pathlen = strlen (close->path) + 1;
- input.recno = close_rec->rec_tail.recno;
- input.offset = close_rec->rec_kml_offset;
- input.len = close_rec->rec_size;
- input.generation = close->generation;
- input.ino = close->ino;
- }
- else {
- CDEBUG(D_KML, "KML_DO_REINT::no space to save:%d < %d",
- strlen (close->path) + 1, input.pathlen);
- error = -ENOMEM;
- }
- if (copy_to_user((char *)arg, &input, sizeof (input)))
- return -EFAULT;
- }
- return error;
-}
-
-/* END_KML_REINT */
-int end_kml_reint (struct file *file, unsigned long arg)
-{
- /* Free KML buffer and related volume info */
- struct {
- char *volname;
- int namelen;
-#if 0
- int count;
- int newpos;
-#endif
- } input;
- struct presto_file_set *fset = NULL;
- struct kml_fsdata *kml_fsdata = NULL;
- int error;
- char *path;
-
- ENTRY;
- if (copy_from_user(&input, (char *)arg, sizeof(input))) {
- EXIT;
- return -EFAULT;
- }
-
- PRESTO_ALLOC(path, char *, input.namelen + 1);
- if ( !path ) {
- EXIT;
- return -ENOMEM;
- }
- if (copy_from_user(path, input.volname, input.namelen)) {
- if ( error ) {
- PRESTO_FREE(path, input.namelen + 1);
- EXIT;
- return -EFAULT;
- }
- path[input.namelen] = '\0';
- fset = kml_getfset (path);
- PRESTO_FREE(path, input.namelen + 1);
-
- kml_fsdata = FSET_GET_KMLDATA(fset);
- delete_kmlrec (&kml_fsdata->kml_reint_cache);
-
- /* kml reint support */
- kml_fsdata->kml_reint_current = NULL;
- kml_fsdata->kml_len = 0;
- kml_fsdata->kml_reintpos = 0;
- kml_fsdata->kml_count = 0;
-#if 0
- input.newpos = kml_upc->newpos;
- input.count = kml_upc->count;
- if (copy_to_user((char *)arg, &input, sizeof (input)))
- return -EFAULT;
-#endif
- return error;
-}
+++ /dev/null
-/*
- * KML Decoding
- *
- * Copryright (C) 1996 Arthur Ma <arthur.ma@mountainviewdata.com>
- *
- * Copyright (C) 2001 Mountainview Data, Inc.
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/mm.h>
-#include "intermezzo_fs.h"
-#include "intermezzo_kml.h"
-
-static int size_round (int val);
-static int unpack_create (struct kml_create *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_open (struct kml_open *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_symlink (struct kml_symlink *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_mknod (struct kml_mknod *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_link (struct kml_link *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_rename (struct kml_rename *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_unlink (struct kml_unlink *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_rmdir (struct kml_rmdir *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_setattr (struct kml_setattr *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_close (struct kml_close *rec, char *buf,
- int pos, int *rec_offs);
-static int unpack_mkdir (struct kml_mkdir *rec, char *buf,
- int pos, int *rec_offs);
-
-#if 0
-static int unpack_endmark (struct kml_endmark *rec, char *buf,
- int pos, int *rec_offs);
-static void print_kml_endmark (struct kml_endmark *rec);
-#endif
-
-static int kml_unpack (char *kml_buf, int rec_size, int kml_offset,
- struct kml_rec **newrec);
-static char *kml_version (struct presto_version *ver);
-static void print_kml_prefix (struct big_journal_prefix *head);
-static void print_kml_create (struct kml_create *rec);
-static void print_kml_mkdir (struct kml_mkdir *rec);
-static void print_kml_unlink (struct kml_unlink *rec);
-static void print_kml_rmdir (struct kml_rmdir *rec);
-static void print_kml_close (struct kml_close *rec);
-static void print_kml_symlink (struct kml_symlink *rec);
-static void print_kml_rename (struct kml_rename *rec);
-static void print_kml_setattr (struct kml_setattr *rec);
-static void print_kml_link (struct kml_link *rec);
-static void print_kml_mknod (struct kml_mknod *rec);
-static void print_kml_open (struct kml_open *rec);
-static void print_kml_suffix (struct journal_suffix *tail);
-static char *readrec (char *recbuf, int reclen, int pos, int *size);
-
-#define KML_PREFIX_WORDS 8
-static int kml_unpack (char *kml_buf, int rec_size, int kml_offset,
- struct kml_rec **newrec)
-{
- struct kml_rec *rec;
- char *p;
- int pos, rec_offs;
- int error;
-
- ENTRY;
- if (rec_size < sizeof (struct journal_prefix) +
- sizeof (struct journal_suffix))
- return -EBADF;
-
- PRESTO_ALLOC(rec, struct kml_rec *, sizeof (struct kml_rec));
- if (rec == NULL) {
- EXIT;
- return -ENOMEM;
- }
- rec->rec_kml_offset = kml_offset;
- rec->rec_size = rec_size;
- p = kml_buf;
- p = dlogit (&rec->rec_head, p, KML_PREFIX_WORDS * sizeof (int));
- p = dlogit (&rec->rec_head.groups, p,
- sizeof (int) * rec->rec_head.ngroups);
-
- pos = sizeof (struct journal_prefix) +
- sizeof (int) * rec->rec_head.ngroups;
- switch (rec->rec_head.opcode)
- {
- case KML_CREATE:
- error = unpack_create (&rec->rec_kml.create,
- kml_buf, pos, &rec_offs);
- break;
- case KML_MKDIR:
- error = unpack_mkdir (&rec->rec_kml.mkdir,
- kml_buf, pos, &rec_offs);
- break;
- case KML_UNLINK:
- error = unpack_unlink (&rec->rec_kml.unlink,
- kml_buf, pos, &rec_offs);
- break;
- case KML_RMDIR:
- error = unpack_rmdir (&rec->rec_kml.rmdir,
- kml_buf, pos, &rec_offs);
- break;
- case KML_CLOSE:
- error = unpack_close (&rec->rec_kml.close,
- kml_buf, pos, &rec_offs);
- break;
- case KML_SYMLINK:
- error = unpack_symlink (&rec->rec_kml.symlink,
- kml_buf, pos, &rec_offs);
- break;
- case KML_RENAME:
- error = unpack_rename (&rec->rec_kml.rename,
- kml_buf, pos, &rec_offs);
- break;
- case KML_SETATTR:
- error = unpack_setattr (&rec->rec_kml.setattr,
- kml_buf, pos, &rec_offs);
- break;
- case KML_LINK:
- error = unpack_link (&rec->rec_kml.link,
- kml_buf, pos, &rec_offs);
- break;
- case KML_OPEN:
- error = unpack_open (&rec->rec_kml.open,
- kml_buf, pos, &rec_offs);
- break;
- case KML_MKNOD:
- error = unpack_mknod (&rec->rec_kml.mknod,
- kml_buf, pos, &rec_offs);
- break;
-#if 0
- case KML_ENDMARK:
- error = unpack_endmark (&rec->rec_kml.endmark,
- kml_buf, pos, &rec_offs);
- break;
-#endif
- default:
- CDEBUG (D_KML, "wrong opcode::%u\n",
- rec->rec_head.opcode);
- EXIT;
- return -EINVAL;
- }
- if (error) {
- PRESTO_FREE (rec, sizeof (struct kml_rec));
- return -EINVAL;
- }
- p = kml_buf + rec_offs;
- p = dlogit (&rec->rec_tail, p, sizeof (struct journal_suffix));
- memset (&rec->kml_optimize, 0, sizeof (struct kml_optimize));
- *newrec = rec;
- EXIT;
- return 0;
-}
-
-static int size_round (int val)
-{
- return (val + 3) & (~0x3);
-}
-
-static int unpack_create (struct kml_create *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 88;
- int pathlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_objectv, p, sizeof (struct presto_version));
- p = dlogit (&rec->mode, p, sizeof (int));
- p = dlogit (&rec->uid, p, sizeof (int));
- p = dlogit (&rec->gid, p, sizeof (int));
- p = dlogit (&pathlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->path = q;
-
- *rec_offs = pos + unpack_size + size_round(pathlen);
- EXIT;
- return 0;
-}
-
-static int unpack_open (struct kml_open *rec, char *buf,
- int pos, int *rec_offs)
-{
- *rec_offs = pos;
- return 0;
-}
-
-static int unpack_symlink (struct kml_symlink *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 88;
- int pathlen, targetlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_objectv, p, sizeof (struct presto_version));
- p = dlogit (&rec->uid, p, sizeof (int));
- p = dlogit (&rec->gid, p, sizeof (int));
- p = dlogit (&pathlen, p, sizeof (int));
- p = dlogit (&targetlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->sourcepath = q;
-
- PRESTO_ALLOC(q, char *, targetlen + 1);
- if (q == NULL) {
- PRESTO_FREE (rec->sourcepath, pathlen + 1);
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, targetlen);
- q[targetlen] = '\0';
- rec->targetpath = q;
-
- *rec_offs = pos + unpack_size + size_round(pathlen) +
- size_round(targetlen);
- EXIT;
- return 0;
-}
-
-static int unpack_mknod (struct kml_mknod *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 96;
- int pathlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_objectv, p, sizeof (struct presto_version));
- p = dlogit (&rec->mode, p, sizeof (int));
- p = dlogit (&rec->uid, p, sizeof (int));
- p = dlogit (&rec->gid, p, sizeof (int));
- p = dlogit (&rec->major, p, sizeof (int));
- p = dlogit (&rec->minor, p, sizeof (int));
- p = dlogit (&pathlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->path = q;
-
- *rec_offs = pos + unpack_size + size_round(pathlen);
- EXIT;
- return 0;
-}
-
-static int unpack_link (struct kml_link *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 80;
- int pathlen, targetlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_objectv, p, sizeof (struct presto_version));
- p = dlogit (&pathlen, p, sizeof (int));
- p = dlogit (&targetlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->sourcepath = q;
- p += size_round (pathlen);
-
- PRESTO_ALLOC(q, char *, targetlen + 1);
- if (q == NULL) {
- PRESTO_FREE (rec->sourcepath, pathlen + 1);
- EXIT;
- return -ENOMEM;
- }
- memcpy (q, p, targetlen);
- q[targetlen] = '\0';
- rec->targetpath = q;
-
- *rec_offs = pos + unpack_size + size_round(pathlen) +
- size_round(targetlen);
- EXIT;
- return 0;
-}
-
-static int unpack_rename (struct kml_rename *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 104;
- int pathlen, targetlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_objectv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_objectv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_tgtv, p, sizeof (struct presto_version));
- p = dlogit (&rec->old_tgtv, p, sizeof (struct presto_version));
- p = dlogit (&pathlen, p, sizeof (int));
- p = dlogit (&targetlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->sourcepath = q;
- p += size_round (pathlen);
-
- PRESTO_ALLOC(q, char *, targetlen + 1);
- if (q == NULL) {
- PRESTO_FREE (rec->sourcepath, pathlen + 1);
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, targetlen);
- q[targetlen] = '\0';
- rec->targetpath = q;
-
- *rec_offs = pos + unpack_size + size_round(pathlen) +
- size_round(targetlen);
- EXIT;
- return 0;
-}
-
-static int unpack_unlink (struct kml_unlink *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 80;
- int pathlen, targetlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->old_tgtv, p, sizeof (struct presto_version));
- p = dlogit (&pathlen, p, sizeof (int));
- p = dlogit (&targetlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->path = q;
- p += size_round (pathlen);
-
- PRESTO_ALLOC(q, char *, targetlen + 1);
- if (q == NULL) {
- PRESTO_FREE (rec->path, pathlen + 1);
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, targetlen);
- q[targetlen] = '\0';
- rec->name = q;
-
- /* fix the presto_journal_unlink problem */
- *rec_offs = pos + unpack_size + size_round(pathlen) +
- size_round(targetlen);
- EXIT;
- return 0;
-}
-
-static int unpack_rmdir (struct kml_rmdir *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 80;
- int pathlen, targetlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->old_tgtv, p, sizeof (struct presto_version));
- p = dlogit (&pathlen, p, sizeof (int));
- p = dlogit (&targetlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->path = q;
- p += size_round (pathlen);
-
- PRESTO_ALLOC(q, char *, targetlen + 1);
- if (q == NULL) {
- PRESTO_FREE (rec->path, pathlen + 1);
- EXIT;
- return -ENOMEM;
- }
- memcpy (q, p, targetlen);
- q[targetlen] = '\0';
- rec->name = q;
-
- *rec_offs = pos + unpack_size + size_round(pathlen) +
- size_round(targetlen);
- EXIT;
- return 0;
-}
-
-static int unpack_setattr (struct kml_setattr *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 72;
- struct kml_attr {
- __u64 size, mtime, ctime;
- } objattr;
- int valid, mode, uid, gid, flags;
- int pathlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_objectv, p, sizeof (struct presto_version));
- p = dlogit (&valid, p, sizeof (int));
- p = dlogit (&mode, p, sizeof (int));
- p = dlogit (&uid, p, sizeof (int));
- p = dlogit (&gid, p, sizeof (int));
- p = dlogit (&objattr, p, sizeof (struct kml_attr));
- p = dlogit (&flags, p, sizeof (int));
- p = dlogit (&pathlen, p, sizeof (int));
-
- rec->iattr.ia_valid = valid;
- rec->iattr.ia_mode = mode;
- rec->iattr.ia_uid = uid;
- rec->iattr.ia_gid = gid;
- rec->iattr.ia_size = objattr.size;
- rec->iattr.ia_mtime = objattr.mtime;
- rec->iattr.ia_ctime = objattr.ctime;
- rec->iattr.ia_atime = 0;
- rec->iattr.ia_attr_flags = flags;
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->path = q;
- p += pathlen;
-
- *rec_offs = pos + unpack_size + size_round(pathlen);
- EXIT;
- return 0;
-}
-
-static int unpack_close (struct kml_close *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 52;
- int pathlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->open_mode, p, sizeof (int));
- p = dlogit (&rec->open_uid, p, sizeof (int));
- p = dlogit (&rec->open_gid, p, sizeof (int));
- p = dlogit (&rec->new_objectv, p, sizeof (struct presto_version));
- p = dlogit (&rec->ino, p, sizeof (__u64));
- p = dlogit (&rec->generation, p, sizeof (int));
- p = dlogit (&pathlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->path = q;
- p += pathlen;
-
- *rec_offs = pos + unpack_size + size_round(pathlen);
- EXIT;
- return 0;
-}
-
-static int unpack_mkdir (struct kml_mkdir *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p, *q;
- int unpack_size = 88;
- int pathlen;
-
- ENTRY;
- p = buf + pos;
- p = dlogit (&rec->old_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_parentv, p, sizeof (struct presto_version));
- p = dlogit (&rec->new_objectv, p, sizeof (struct presto_version));
- p = dlogit (&rec->mode, p, sizeof (int));
- p = dlogit (&rec->uid, p, sizeof (int));
- p = dlogit (&rec->gid, p, sizeof (int));
- p = dlogit (&pathlen, p, sizeof (int));
-
- PRESTO_ALLOC(q, char *, pathlen + 1);
- if (q == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- memcpy (q, p, pathlen);
- q[pathlen] = '\0';
- rec->path = q;
- p += pathlen;
-
- *rec_offs = pos + unpack_size + size_round(pathlen);
- EXIT;
- return 0;
-}
-
-#if 0
-static int unpack_endmark (struct kml_endmark *rec, char *buf,
- int pos, int *rec_offs)
-{
- char *p;
- p = buf + pos;
- p = dlogit (&rec->total, p, sizeof (int));
-
- PRESTO_ALLOC (rec->kop, struct kml_kop_node *,
- sizeof (struct kml_kop_node) * rec->total);
- if (rec->kop == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- p = dlogit (rec->kop, p, sizeof (struct kml_kop_node) * rec->total);
-
- *rec_offs = pos + sizeof (int) + sizeof (struct kml_kop_node) * rec->total;
- return 0;
-}
-#endif
-
-static char *kml_version (struct presto_version *ver)
-{
- static char buf[256];
- sprintf (buf, "mt::%lld, ct::%lld, size::%lld",
- ver->pv_mtime, ver->pv_ctime, ver->pv_size);
- return buf;
-}
-
-static void print_kml_prefix (struct big_journal_prefix *head)
-{
- int i;
-
- CDEBUG (D_KML, " === KML PREFIX\n");
- CDEBUG (D_KML, " len = %u\n", head->len);
- CDEBUG (D_KML, " version = %u\n", head->version);
- CDEBUG (D_KML, " pid = %u\n", head->pid);
- CDEBUG (D_KML, " uid = %u\n", head->uid);
- CDEBUG (D_KML, " fsuid = %u\n", head->fsuid);
- CDEBUG (D_KML, " fsgid = %u\n", head->fsgid);
- CDEBUG (D_KML, " opcode = %u\n", head->opcode);
- CDEBUG (D_KML, " ngroup = %u", head->ngroups);
- for (i = 0; i < head->ngroups; i++)
- CDEBUG (D_KML, "%u ", head->groups[i]);
- CDEBUG (D_KML, "\n");
-}
-
-static void print_kml_create (struct kml_create *rec)
-{
- CDEBUG (D_KML, " === CREATE\n");
- CDEBUG (D_KML, " path::%s\n", rec->path);
- CDEBUG (D_KML, " new_objv::%s\n", kml_version (&rec->new_objectv));
- CDEBUG (D_KML, " old_parv::%s\n", kml_version (&rec->old_parentv));
- CDEBUG (D_KML, " new_parv::%s\n", kml_version (&rec->new_parentv));
- CDEBUG (D_KML, " mode::%o\n", rec->mode);
- CDEBUG (D_KML, " uid::%d\n", rec->uid);
- CDEBUG (D_KML, " gid::%d\n", rec->gid);
-}
-
-static void print_kml_mkdir (struct kml_mkdir *rec)
-{
- CDEBUG (D_KML, " === MKDIR\n");
- CDEBUG (D_KML, " path::%s\n", rec->path);
- CDEBUG (D_KML, " new_objv::%s\n", kml_version (&rec->new_objectv));
- CDEBUG (D_KML, " old_parv::%s\n", kml_version (&rec->old_parentv));
- CDEBUG (D_KML, " new_parv::%s\n", kml_version (&rec->new_parentv));
- CDEBUG (D_KML, " mode::%o\n", rec->mode);
- CDEBUG (D_KML, " uid::%d\n", rec->uid);
- CDEBUG (D_KML, " gid::%d\n", rec->gid);
-}
-
-static void print_kml_unlink (struct kml_unlink *rec)
-{
- CDEBUG (D_KML, " === UNLINK\n");
- CDEBUG (D_KML, " path::%s/%s\n", rec->path, rec->name);
- CDEBUG (D_KML, " old_tgtv::%s\n", kml_version (&rec->old_tgtv));
- CDEBUG (D_KML, " old_parv::%s\n", kml_version (&rec->old_parentv));
- CDEBUG (D_KML, " new_parv::%s\n", kml_version (&rec->new_parentv));
-}
-
-static void print_kml_rmdir (struct kml_rmdir *rec)
-{
- CDEBUG (D_KML, " === RMDIR\n");
- CDEBUG (D_KML, " path::%s/%s\n", rec->path, rec->name);
- CDEBUG (D_KML, " old_tgtv::%s\n", kml_version (&rec->old_tgtv));
- CDEBUG (D_KML, " old_parv::%s\n", kml_version (&rec->old_parentv));
- CDEBUG (D_KML, " new_parv::%s\n", kml_version (&rec->new_parentv));
-}
-
-static void print_kml_close (struct kml_close *rec)
-{
- CDEBUG (D_KML, " === CLOSE\n");
- CDEBUG (D_KML, " mode::%o\n", rec->open_mode);
- CDEBUG (D_KML, " uid::%d\n", rec->open_uid);
- CDEBUG (D_KML, " gid::%d\n", rec->open_gid);
- CDEBUG (D_KML, " path::%s\n", rec->path);
- CDEBUG (D_KML, " new_objv::%s\n", kml_version (&rec->new_objectv));
- CDEBUG (D_KML, " ino::%lld\n", rec->ino);
- CDEBUG (D_KML, " gen::%u\n", rec->generation);
-}
-
-static void print_kml_symlink (struct kml_symlink *rec)
-{
- CDEBUG (D_KML, " === SYMLINK\n");
- CDEBUG (D_KML, " s-path::%s\n", rec->sourcepath);
- CDEBUG (D_KML, " t-path::%s\n", rec->targetpath);
- CDEBUG (D_KML, " old_parv::%s\n", kml_version (&rec->old_parentv));
- CDEBUG (D_KML, " new_parv::%s\n", kml_version (&rec->new_parentv));
- CDEBUG (D_KML, " new_objv::%s\n", kml_version (&rec->new_objectv));
- CDEBUG (D_KML, " uid::%d\n", rec->uid);
- CDEBUG (D_KML, " gid::%d\n", rec->gid);
-}
-
-static void print_kml_rename (struct kml_rename *rec)
-{
- CDEBUG (D_KML, " === RENAME\n");
- CDEBUG (D_KML, " s-path::%s\n", rec->sourcepath);
- CDEBUG (D_KML, " t-path::%s\n", rec->targetpath);
- CDEBUG (D_KML, " old_tgtv::%s\n", kml_version (&rec->old_tgtv));
- CDEBUG (D_KML, " new_tgtv::%s\n", kml_version (&rec->new_tgtv));
- CDEBUG (D_KML, " new_objv::%s\n", kml_version (&rec->new_objectv));
- CDEBUG (D_KML, " old_objv::%s\n", kml_version (&rec->old_objectv));
-}
-
-static void print_kml_setattr (struct kml_setattr *rec)
-{
- CDEBUG (D_KML, " === SETATTR\n");
- CDEBUG (D_KML, " path::%s\n", rec->path);
- CDEBUG (D_KML, " old_objv::%s\n", kml_version (&rec->old_objectv));
- CDEBUG (D_KML, " valid::0x%x\n", rec->iattr.ia_valid);
- CDEBUG (D_KML, " mode::%o\n", rec->iattr.ia_mode);
- CDEBUG (D_KML, " uid::%d\n", rec->iattr.ia_uid);
- CDEBUG (D_KML, " gid::%d\n", rec->iattr.ia_gid);
- CDEBUG (D_KML, " size::%u\n", (u32) rec->iattr.ia_size);
- CDEBUG (D_KML, " mtime::%u\n", (u32) rec->iattr.ia_mtime);
- CDEBUG (D_KML, " ctime::%u\n", (u32) rec->iattr.ia_ctime);
- CDEBUG (D_KML, " flags::%u\n", (u32) rec->iattr.ia_attr_flags);
-}
-
-static void print_kml_link (struct kml_link *rec)
-{
- CDEBUG (D_KML, " === LINK\n");
- CDEBUG (D_KML, " path::%s ==> %s\n", rec->sourcepath, rec->targetpath);
- CDEBUG (D_KML, " old_parv::%s\n", kml_version (&rec->old_parentv));
- CDEBUG (D_KML, " new_obj::%s\n", kml_version (&rec->new_objectv));
- CDEBUG (D_KML, " new_parv::%s\n", kml_version (&rec->new_parentv));
-}
-
-static void print_kml_mknod (struct kml_mknod *rec)
-{
- CDEBUG (D_KML, " === MKNOD\n");
- CDEBUG (D_KML, " path::%s\n", rec->path);
- CDEBUG (D_KML, " new_obj::%s\n", kml_version (&rec->new_objectv));
- CDEBUG (D_KML, " old_parv::%s\n", kml_version (&rec->old_parentv));
- CDEBUG (D_KML, " new_parv::%s\n", kml_version (&rec->new_parentv));
- CDEBUG (D_KML, " mode::%o\n", rec->mode);
- CDEBUG (D_KML, " uid::%d\n", rec->uid);
- CDEBUG (D_KML, " gid::%d\n", rec->gid);
- CDEBUG (D_KML, " major::%d\n", rec->major);
- CDEBUG (D_KML, " minor::%d\n", rec->minor);
-}
-
-static void print_kml_open (struct kml_open *rec)
-{
- CDEBUG (D_KML, " === OPEN\n");
-}
-
-#if 0
-static void print_kml_endmark (struct kml_endmark *rec)
-{
- int i;
- CDEBUG (D_KML, " === ENDMARK\n");
- CDEBUG (D_KML, " total::%u\n", rec->total);
- for (i = 0; i < rec->total; i++)
- {
- CDEBUG (D_KML, " recno=%ld::flag=%ld,op=%ld, i_ino=%ld, \
- i_nlink=%ld\n", (long) rec->kop[i].kml_recno,
- (long) rec->kop[i].kml_flag, (long) rec->kop[i].kml_op,
- (long) rec->kop[i].i_ino, (long) rec->kop[i].i_nlink);
- }
-}
-#endif
-
-static void print_kml_optimize (struct kml_optimize *rec)
-{
- CDEBUG (D_KML, " === OPTIMIZE\n");
- if (rec->kml_flag == KML_REC_DELETE)
- CDEBUG (D_KML, " kml_flag::deleted\n");
- else
- CDEBUG (D_KML, " kml_flag::exist\n");
- CDEBUG (D_KML, " kml_op::%u\n", rec->kml_op);
- CDEBUG (D_KML, " i_nlink::%d\n", rec->i_nlink);
- CDEBUG (D_KML, " i_ino::%u\n", rec->i_ino);
-}
-
-static void print_kml_suffix (struct journal_suffix *tail)
-{
- CDEBUG (D_KML, " === KML SUFFIX\n");
- CDEBUG (D_KML, " prevrec::%ld\n", tail->prevrec);
- CDEBUG (D_KML, " recno::%ld\n", (long) tail->recno);
- CDEBUG (D_KML, " time::%d\n", tail->time);
- CDEBUG (D_KML, " len::%d\n", tail->len);
-}
-
-void kml_printrec (struct kml_rec *rec, int kml_printop)
-{
- if (kml_printop & PRINT_KML_PREFIX)
- print_kml_prefix (&rec->rec_head);
- if (kml_printop & PRINT_KML_REC)
- {
- switch (rec->rec_head.opcode)
- {
- case KML_CREATE:
- print_kml_create (&rec->rec_kml.create);
- break;
- case KML_MKDIR:
- print_kml_mkdir (&rec->rec_kml.mkdir);
- break;
- case KML_UNLINK:
- print_kml_unlink (&rec->rec_kml.unlink);
- break;
- case KML_RMDIR:
- print_kml_rmdir (&rec->rec_kml.rmdir);
- break;
- case KML_CLOSE:
- print_kml_close (&rec->rec_kml.close);
- break;
- case KML_SYMLINK:
- print_kml_symlink (&rec->rec_kml.symlink);
- break;
- case KML_RENAME:
- print_kml_rename (&rec->rec_kml.rename);
- break;
- case KML_SETATTR:
- print_kml_setattr (&rec->rec_kml.setattr);
- break;
- case KML_LINK:
- print_kml_link (&rec->rec_kml.link);
- break;
- case KML_OPEN:
- print_kml_open (&rec->rec_kml.open);
- break;
- case KML_MKNOD:
- print_kml_mknod (&rec->rec_kml.mknod);
- break;
-#if 0
- case KML_ENDMARK:
- print_kml_endmark (&rec->rec_kml.endmark);
-#endif
- break;
- default:
- CDEBUG (D_KML, " === BAD RECORD, opcode=%u\n",
- rec->rec_head.opcode);
- break;
- }
- }
- if (kml_printop & PRINT_KML_SUFFIX)
- print_kml_suffix (&rec->rec_tail);
- if (kml_printop & PRINT_KML_OPTIMIZE)
- print_kml_optimize (&rec->kml_optimize);
-}
-
-void kml_freerec (struct kml_rec *rec)
-{
- char *sourcepath = NULL,
- *targetpath = NULL;
- switch (rec->rec_head.opcode)
- {
- case KML_CREATE:
- sourcepath = rec->rec_kml.create.path;
- break;
- case KML_MKDIR:
- sourcepath = rec->rec_kml.create.path;
- break;
- case KML_UNLINK:
- sourcepath = rec->rec_kml.unlink.path;
- targetpath = rec->rec_kml.unlink.name;
- break;
- case KML_RMDIR:
- sourcepath = rec->rec_kml.rmdir.path;
- targetpath = rec->rec_kml.rmdir.name;
- break;
- case KML_CLOSE:
- sourcepath = rec->rec_kml.close.path;
- break;
- case KML_SYMLINK:
- sourcepath = rec->rec_kml.symlink.sourcepath;
- targetpath = rec->rec_kml.symlink.targetpath;
- break;
- case KML_RENAME:
- sourcepath = rec->rec_kml.rename.sourcepath;
- targetpath = rec->rec_kml.rename.targetpath;
- break;
- case KML_SETATTR:
- sourcepath = rec->rec_kml.setattr.path;
- break;
- case KML_LINK:
- sourcepath = rec->rec_kml.link.sourcepath;
- targetpath = rec->rec_kml.link.targetpath;
- break;
- case KML_OPEN:
- break;
- case KML_MKNOD:
- sourcepath = rec->rec_kml.mknod.path;
- break;
-#if 0
- case KML_ENDMARK:
- PRESTO_FREE (rec->rec_kml.endmark.kop, sizeof (int) +
- sizeof (struct kml_kop_node) *
- rec->rec_kml.endmark.total);
-#endif
- break;
- default:
- break;
- }
- if (sourcepath != NULL)
- PRESTO_FREE (sourcepath, strlen (sourcepath) + 1);
- if (targetpath != NULL)
- PRESTO_FREE (targetpath, strlen (targetpath) + 1);
-}
-
-char *readrec (char *recbuf, int reclen, int pos, int *size)
-{
- char *p = recbuf + pos;
- *size = *((int *) p);
- if (*size > (reclen - pos))
- return NULL;
- return p;
-}
-
-int kml_decoderec (char *buf, int pos, int buflen, int *size,
- struct kml_rec **newrec)
-{
- char *tmp;
- int error;
- tmp = readrec (buf, buflen, pos, size);
- if (tmp == NULL)
- return -EBADF;
- error = kml_unpack (tmp, *size, pos, newrec);
- return error;
-}
-
-#if 0
-static void fill_kmlrec_optimize (struct list_head *head,
- struct kml_rec *optrec)
-{
- struct kml_rec *kmlrec;
- struct list_head *tmp;
- struct kml_endmark *km;
- struct kml_optimize *ko;
- int n;
-
- if (optrec->rec_kml.endmark.total == 0)
- return;
- n = optrec->rec_kml.endmark.total - 1;
- tmp = head->prev;
- km = &optrec->rec_kml.endmark;
- while ( n >= 0 && tmp != head )
- {
- kmlrec = list_entry(tmp, struct kml_rec,
- kml_optimize.kml_chains);
- tmp = tmp->prev;
- if (kmlrec->rec_tail.recno == km->kop[n].kml_recno)
- {
- ko = &kmlrec->kml_optimize;
- ko->kml_flag = km->kop[n].kml_flag;
- ko->kml_op = km->kop[n].kml_op;
- ko->i_nlink = km->kop[n].i_nlink;
- ko->i_ino = km->kop[n].i_ino;
- n --;
- }
- }
- if (n != -1)
- CDEBUG (D_KML, "Yeah!!!, KML optimize error, recno=%d, n=%d\n",
- optrec->rec_tail.recno, n);
-}
-#endif
-
-int decode_kmlrec (struct list_head *head, char *kml_buf, int buflen)
-{
- struct kml_rec *rec;
- int pos = 0, size;
- int err;
- while (pos < buflen) {
- err = kml_decoderec (kml_buf, pos, buflen, &size, &rec);
- if (err != 0)
- break;
-#if 0
- if (rec->rec_head.opcode == KML_ENDMARK) {
- fill_kmlrec_optimize (head, rec);
- mark_rec_deleted (rec);
- }
-#endif
- list_add_tail (&rec->kml_optimize.kml_chains, head);
- pos += size;
- }
- return err;
-}
-
-int delete_kmlrec (struct list_head *head)
-{
- struct kml_rec *rec;
- struct list_head *tmp;
-
- if (list_empty(head))
- return 0;
- tmp = head->next;
- while ( tmp != head ) {
- rec = list_entry(tmp, struct kml_rec,
- kml_optimize.kml_chains);
- tmp = tmp->next;
- kml_freerec (rec);
- }
- INIT_LIST_HEAD(head);
- return 0;
-}
-
-int print_allkmlrec (struct list_head *head, int printop)
-{
- struct kml_rec *rec;
- struct list_head *tmp;
-
- if (list_empty(head))
- return 0;
- tmp = head->next;
- while ( tmp != head ) {
- rec = list_entry(tmp, struct kml_rec,
- kml_optimize.kml_chains);
- tmp = tmp->next;
-#if 0
- if (printop & PRINT_KML_EXIST) {
- if (is_deleted_node (rec))
- continue;
- }
- else if (printop & PRINT_KML_DELETE) {
- if (! is_deleted_node (rec))
- continue;
- }
-#endif
- kml_printrec (rec, printop);
- }
- INIT_LIST_HEAD(head);
- return 0;
-}
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Reintegration of KML records
- *
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/mm.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/mmu_context.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-static void kmlreint_pre_secure(struct kml_rec *rec, struct file *dir,
- struct run_ctxt *saved)
-{
- struct run_ctxt ctxt;
- struct presto_dentry_data *dd = presto_d2d(dir->f_dentry);
- int i;
-
- ctxt.fsuid = rec->prefix.hdr->fsuid;
- ctxt.fsgid = rec->prefix.hdr->fsgid;
- ctxt.fs = KERNEL_DS;
- ctxt.pwd = dd->dd_fset->fset_dentry;
- ctxt.pwdmnt = dd->dd_fset->fset_mnt;
-
- ctxt.root = ctxt.pwd;
- ctxt.rootmnt = ctxt.pwdmnt;
- if (rec->prefix.hdr->ngroups > 0) {
- ctxt.group_info = groups_alloc(rec->prefix.hdr->ngroups);
- for (i = 0; i< ctxt.group_info->ngroups; i++)
- GROUP_AT(ctxt.group_info,i)= rec->prefix.groups[i];
- } else
- ctxt.group_info = groups_alloc(0);
-
- push_ctxt(saved, &ctxt);
-}
-
-
-/* Append two strings in a less-retarded fashion. */
-static char * path_join(char *p1, int p1len, char *p2, int p2len)
-{
- int size = p1len + p2len + 2; /* possibly one extra /, one NULL */
- char *path;
-
- path = kmalloc(size, GFP_KERNEL);
- if (path == NULL)
- return NULL;
-
- memcpy(path, p1, p1len);
- if (path[p1len - 1] != '/') {
- path[p1len] = '/';
- p1len++;
- }
- memcpy(path + p1len, p2, p2len);
- path[p1len + p2len] = '\0';
-
- return path;
-}
-
-static inline int kml_recno_equal(struct kml_rec *rec,
- struct presto_file_set *fset)
-{
- return (rec->suffix->recno == fset->fset_lento_recno + 1);
-}
-
-static inline int version_equal(struct presto_version *a, struct inode *inode)
-{
- if (a == NULL)
- return 1;
-
- if (inode == NULL) {
- CERROR("InterMezzo: NULL inode in version_equal()\n");
- return 0;
- }
-
- if (inode->i_mtime.tv_sec == a->pv_mtime_sec &&
- inode->i_mtime.tv_nsec == a->pv_mtime_nsec &&
- (S_ISDIR(inode->i_mode) || inode->i_size == a->pv_size))
- return 1;
-
- return 0;
-}
-
-static int reint_close(struct kml_rec *rec, struct file *file,
- struct lento_vfs_context *given_info)
-{
- struct run_ctxt saved_ctxt;
- int error;
- struct presto_file_set *fset;
- struct lento_vfs_context info;
- ENTRY;
-
- memcpy(&info, given_info, sizeof(*given_info));
-
-
- CDEBUG (D_KML, "=====REINT_CLOSE::%s\n", rec->path);
-
- fset = presto_fset(file->f_dentry);
- if (fset->fset_flags & FSET_DATA_ON_DEMAND) {
- struct iattr iattr;
-
- iattr.ia_valid = ATTR_CTIME | ATTR_MTIME | ATTR_SIZE;
- iattr.ia_mtime.tv_sec = (time_t)rec->new_objectv->pv_mtime_sec;
- iattr.ia_mtime.tv_nsec = (time_t)rec->new_objectv->pv_mtime_nsec;
- iattr.ia_ctime.tv_sec = (time_t)rec->new_objectv->pv_ctime_sec;
- iattr.ia_ctime.tv_nsec = (time_t)rec->new_objectv->pv_ctime_nsec;
- iattr.ia_size = (time_t)rec->new_objectv->pv_size;
-
- /* no kml record, but update last rcvd */
- /* save fileid in dentry for later backfetch */
- info.flags |= LENTO_FL_EXPECT | LENTO_FL_SET_DDFILEID;
- info.remote_ino = rec->ino;
- info.remote_generation = rec->generation;
- info.flags &= ~LENTO_FL_KML;
- kmlreint_pre_secure(rec, file, &saved_ctxt);
- error = lento_setattr(rec->path, &iattr, &info);
- pop_ctxt(&saved_ctxt);
-
- presto_d2d(file->f_dentry)->dd_flags &= ~PRESTO_DATA;
- } else {
- int minor = presto_f2m(fset);
-
- info.updated_time.tv_sec = rec->new_objectv->pv_mtime_sec;
- info.updated_time.tv_nsec = rec->new_objectv->pv_mtime_nsec;
- memcpy(&info.remote_version, rec->old_objectv,
- sizeof(*rec->old_objectv));
- info.remote_ino = rec->ino;
- info.remote_generation = rec->generation;
- error = izo_upc_backfetch(minor, rec->path, fset->fset_name,
- &info);
- if (error) {
- CERROR("backfetch error %d\n", error);
- /* if file doesn't exist anymore, then ignore the CLOSE
- * and just update the last_rcvd.
- */
- if (error == ENOENT) {
- CDEBUG(D_KML, "manually updating remote offset uuid %s"
- "recno %d offset %Lu\n", info.uuid, info.recno,
- (unsigned long long) info.kml_offset);
- error = izo_rcvd_upd_remote(fset, info.uuid, info.recno, info.kml_offset);
- if(error)
- CERROR("izo_rcvd_upd_remote error %d\n", error);
-
- }
- }
-
- /* propagate error to avoid further reint */
- }
-
- EXIT;
- return error;
-}
-
-static int reint_create(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- int error; ENTRY;
-
- CDEBUG (D_KML, "=====REINT_CREATE::%s\n", rec->path);
- info->updated_time.tv_sec = rec->new_objectv->pv_ctime_sec;
- info->updated_time.tv_nsec = rec->new_objectv->pv_ctime_nsec;
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
- error = lento_create(rec->path, rec->mode, info);
- pop_ctxt(&saved_ctxt);
-
- EXIT;
- return error;
-}
-
-static int reint_link(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- int error;
-
- ENTRY;
-
- CDEBUG (D_KML, "=====REINT_LINK::%s -> %s\n", rec->path, rec->target);
- info->updated_time.tv_sec = rec->new_objectv->pv_mtime_sec;
- info->updated_time.tv_nsec = rec->new_objectv->pv_mtime_nsec;
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
- error = lento_link(rec->path, rec->target, info);
- pop_ctxt(&saved_ctxt);
-
- EXIT;
- return error;
-}
-
-static int reint_mkdir(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- int error;
-
- ENTRY;
-
- CDEBUG (D_KML, "=====REINT_MKDIR::%s\n", rec->path);
- info->updated_time.tv_sec = rec->new_objectv->pv_ctime_sec;
- info->updated_time.tv_nsec = rec->new_objectv->pv_ctime_nsec;
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
- error = lento_mkdir(rec->path, rec->mode, info);
- pop_ctxt(&saved_ctxt);
-
- EXIT;
- return error;
-}
-
-static int reint_mknod(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- int error;
- dev_t dev;
-
- ENTRY;
-
- CDEBUG (D_KML, "=====REINT_MKNOD::%s\n", rec->path);
- info->updated_time.tv_sec = rec->new_objectv->pv_ctime_sec;
- info->updated_time.tv_nsec = rec->new_objectv->pv_ctime_nsec;
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
-
- dev = rec->rdev ? old_decode_dev(rec->rdev) : MKDEV(rec->major, rec->minor);
-
- error = lento_mknod(rec->path, rec->mode, dev, info);
- pop_ctxt(&saved_ctxt);
-
- EXIT;
- return error;
-}
-
-
-static int reint_noop(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- return 0;
-}
-
-static int reint_rename(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- int error;
-
- ENTRY;
-
- CDEBUG (D_KML, "=====REINT_RENAME::%s -> %s\n", rec->path, rec->target);
- info->updated_time.tv_sec = rec->new_objectv->pv_mtime_sec;
- info->updated_time.tv_nsec = rec->new_objectv->pv_mtime_nsec;
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
- error = lento_rename(rec->path, rec->target, info);
- pop_ctxt(&saved_ctxt);
-
- EXIT;
- return error;
-}
-
-static int reint_rmdir(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- int error;
- char *path;
-
- ENTRY;
-
- path = path_join(rec->path, rec->pathlen - 1, rec->target, rec->targetlen);
- if (path == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- CDEBUG (D_KML, "=====REINT_RMDIR::%s\n", path);
- info->updated_time.tv_sec = rec->new_parentv->pv_mtime_sec;
- info->updated_time.tv_nsec = rec->new_parentv->pv_mtime_nsec;
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
- error = lento_rmdir(path, info);
- pop_ctxt(&saved_ctxt);
-
- kfree(path);
- EXIT;
- return error;
-}
-
-static int reint_setattr(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- struct iattr iattr;
- int error;
-
- ENTRY;
-
- iattr.ia_valid = rec->valid;
- iattr.ia_mode = (umode_t)rec->mode;
- iattr.ia_uid = (uid_t)rec->uid;
- iattr.ia_gid = (gid_t)rec->gid;
- iattr.ia_size = (off_t)rec->size;
- iattr.ia_ctime.tv_sec = rec->ctime_sec;
- iattr.ia_ctime.tv_nsec = rec->ctime_nsec;
- iattr.ia_mtime.tv_sec = rec->mtime_sec;
- iattr.ia_mtime.tv_nsec = rec->mtime_nsec;
- iattr.ia_atime = iattr.ia_mtime; /* We don't track atimes. */
- iattr.ia_attr_flags = rec->flags;
-
- CDEBUG (D_KML, "=====REINT_SETATTR::%s (%d)\n", rec->path, rec->valid);
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
- error = lento_setattr(rec->path, &iattr, info);
- pop_ctxt(&saved_ctxt);
-
- EXIT;
- return error;
-}
-
-static int reint_symlink(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- int error;
-
- ENTRY;
-
- CDEBUG (D_KML, "=====REINT_SYMLINK::%s -> %s\n", rec->path, rec->target);
- info->updated_time.tv_sec = rec->new_objectv->pv_ctime_sec;
- info->updated_time.tv_nsec = rec->new_objectv->pv_ctime_nsec;
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
- error = lento_symlink(rec->target, rec->path, info);
- pop_ctxt(&saved_ctxt);
-
- EXIT;
- return error;
-}
-
-static int reint_unlink(struct kml_rec *rec, struct file *dir,
- struct lento_vfs_context *info)
-{
- struct run_ctxt saved_ctxt;
- int error;
- char *path;
-
- ENTRY;
-
- path = path_join(rec->path, rec->pathlen - 1, rec->target, rec->targetlen);
- if (path == NULL) {
- EXIT;
- return -ENOMEM;
- }
-
- CDEBUG (D_KML, "=====REINT_UNLINK::%s\n", path);
- info->updated_time.tv_sec = rec->new_parentv->pv_mtime_sec;
- info->updated_time.tv_nsec = rec->new_parentv->pv_mtime_nsec;
- kmlreint_pre_secure(rec, dir, &saved_ctxt);
- error = lento_unlink(path, info);
- pop_ctxt(&saved_ctxt);
-
- kfree(path);
- EXIT;
- return error;
-}
-
-static int branch_reint_rename(struct presto_file_set *fset, struct kml_rec *rec,
- struct file *dir, struct lento_vfs_context *info,
- char * kml_data, __u64 kml_size)
-{
- int error;
-
- ENTRY;
-
- error = reint_rename(rec, dir, info);
- if (error == -ENOENT) {
- /* normal reint failed because path was not found */
- struct rec_info rec;
-
- CDEBUG(D_KML, "saving branch rename kml\n");
- rec.is_kml = 1;
- rec.size = kml_size;
- error = presto_log(fset, &rec, kml_data, kml_size,
- NULL, 0, NULL, 0, NULL, 0);
- if (error == 0)
- error = presto_write_last_rcvd(&rec, fset, info);
- }
-
- EXIT;
- return error;
-}
-
-int branch_reinter(struct presto_file_set *fset, struct kml_rec *rec,
- struct file *dir, struct lento_vfs_context *info,
- char * kml_data, __u64 kml_size)
-{
- int error = 0;
- int op = rec->prefix.hdr->opcode;
-
- if (op == KML_OPCODE_CLOSE) {
- /* regular close and backfetch */
- error = reint_close(rec, dir, info);
- } else if (op == KML_OPCODE_RENAME) {
- /* rename only if name already exists */
- error = branch_reint_rename(fset, rec, dir, info,
- kml_data, kml_size);
- } else {
- /* just rewrite kml into branch/kml and update last_rcvd */
- struct rec_info rec;
-
- CDEBUG(D_KML, "Saving branch kml\n");
- rec.is_kml = 1;
- rec.size = kml_size;
- error = presto_log(fset, &rec, kml_data, kml_size,
- NULL, 0, NULL, 0, NULL, 0);
- if (error == 0)
- error = presto_write_last_rcvd(&rec, fset, info);
- }
-
- return error;
-}
-
-typedef int (*reinter_t)(struct kml_rec *rec, struct file *basedir,
- struct lento_vfs_context *info);
-
-static reinter_t presto_reinters[KML_OPCODE_NUM] =
-{
- [KML_OPCODE_CLOSE] = reint_close,
- [KML_OPCODE_CREATE] = reint_create,
- [KML_OPCODE_LINK] = reint_link,
- [KML_OPCODE_MKDIR] = reint_mkdir,
- [KML_OPCODE_MKNOD] = reint_mknod,
- [KML_OPCODE_NOOP] = reint_noop,
- [KML_OPCODE_RENAME] = reint_rename,
- [KML_OPCODE_RMDIR] = reint_rmdir,
- [KML_OPCODE_SETATTR] = reint_setattr,
- [KML_OPCODE_SYMLINK] = reint_symlink,
- [KML_OPCODE_UNLINK] = reint_unlink,
-};
-
-static inline reinter_t get_reinter(int op)
-{
- if (op < 0 || op >= sizeof(presto_reinters) / sizeof(reinter_t))
- return NULL;
- else
- return presto_reinters[op];
-}
-
-int kml_reint_rec(struct file *dir, struct izo_ioctl_data *data)
-{
- char *ptr;
- char *end;
- struct kml_rec rec;
- int error = 0;
- struct lento_vfs_context info;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct presto_dentry_data *dd = presto_d2d(dir->f_dentry);
- int op;
- reinter_t reinter;
-
- struct izo_rcvd_rec lr_rec;
- int off;
-
- ENTRY;
-
- error = presto_prep(dir->f_dentry, &cache, &fset);
- if ( error ) {
- CERROR("intermezzo: Reintegration on invalid file\n");
- return error;
- }
-
- if (!dd || !dd->dd_fset || dd->dd_fset->fset_dentry != dir->f_dentry) {
- CERROR("intermezzo: reintegration on non-fset root (ino %ld)\n",
- dir->f_dentry->d_inode->i_ino);
-
- return -EINVAL;
- }
-
- if (data->ioc_plen1 > 64 * 1024) {
- EXIT;
- return -ENOSPC;
- }
-
- ptr = fset->fset_reint_buf;
- end = ptr + data->ioc_plen1;
-
- if (copy_from_user(ptr, data->ioc_pbuf1, data->ioc_plen1)) {
- EXIT;
- error = -EFAULT;
- goto out;
- }
-
- error = kml_unpack(&rec, &ptr, end);
- if (error) {
- EXIT;
- error = -EFAULT;
- goto out;
- }
-
- off = izo_rcvd_get(&lr_rec, fset, data->ioc_uuid);
- if (off < 0) {
- CERROR("No last_rcvd record, setting to 0\n");
- memset(&lr_rec, 0, sizeof(lr_rec));
- }
-
- data->ioc_kmlsize = ptr - fset->fset_reint_buf;
-
- if (rec.suffix->recno != lr_rec.lr_remote_recno + 1) {
- CERROR("KML record number %Lu expected, not %d\n",
- (unsigned long long) (lr_rec.lr_remote_recno + 1),
- rec.suffix->recno);
-
-#if 0
- if (!version_check(&rec, dd->dd_fset, &info)) {
- /* FIXME: do an upcall to resolve conflicts */
- CERROR("intermezzo: would be a conflict!\n");
- error = -EINVAL;
- EXIT;
- goto out;
- }
-#endif
- }
-
- op = rec.prefix.hdr->opcode;
-
- reinter = get_reinter(op);
- if (!reinter) {
- CERROR("%s: Unrecognized KML opcode %d\n", __FUNCTION__, op);
- error = -EINVAL;
- EXIT;
- goto out;
- }
-
- info.kml_offset = data->ioc_offset + data->ioc_kmlsize;
- info.recno = rec.suffix->recno;
- info.flags = LENTO_FL_EXPECT;
- if (data->ioc_flags)
- info.flags |= LENTO_FL_KML;
-
- memcpy(info.uuid, data->ioc_uuid, sizeof(info.uuid));
-
- if (fset->fset_flags & FSET_IS_BRANCH && data->ioc_flags)
- error = branch_reinter(fset, &rec, dir, &info, fset->fset_reint_buf,
- data->ioc_kmlsize);
- else
- error = reinter(&rec, dir, &info);
- out:
- EXIT;
- return error;
-}
-
-int izo_get_fileid(struct file *dir, struct izo_ioctl_data *data)
-{
- char *buf = NULL;
- char *ptr;
- char *end;
- struct kml_rec rec;
- struct file *file;
- struct presto_cache *cache;
- struct presto_file_set *fset;
- struct presto_dentry_data *dd = presto_d2d(dir->f_dentry);
- struct run_ctxt saved_ctxt;
- int error;
-
- ENTRY;
-
- error = presto_prep(dir->f_dentry, &cache, &fset);
- if ( error ) {
- CERROR("intermezzo: Reintegration on invalid file\n");
- return error;
- }
-
- if (!dd || !dd->dd_fset || dd->dd_fset->fset_dentry != dir->f_dentry) {
- CERROR("intermezzo: reintegration on non-fset root (ino %ld)\n",
- dir->f_dentry->d_inode->i_ino);
-
- return -EINVAL;
- }
-
-
- PRESTO_ALLOC(buf, data->ioc_plen1);
- if (!buf) {
- EXIT;
- return -ENOMEM;
- }
- ptr = buf;
- end = buf + data->ioc_plen1;
-
- if (copy_from_user(buf, data->ioc_pbuf1, data->ioc_plen1)) {
- EXIT;
- PRESTO_FREE(buf, data->ioc_plen1);
- return -EFAULT;
- }
-
- error = kml_unpack(&rec, &ptr, end);
- if (error) {
- EXIT;
- PRESTO_FREE(buf, data->ioc_plen1);
- return -EFAULT;
- }
-
- kmlreint_pre_secure(&rec, dir, &saved_ctxt);
-
- file = filp_open(rec.path, O_RDONLY, 0);
- if (!file || IS_ERR(file)) {
- error = PTR_ERR(file);
- goto out;
- }
- data->ioc_ino = file->f_dentry->d_inode->i_ino;
- data->ioc_generation = file->f_dentry->d_inode->i_generation;
- filp_close(file, 0);
-
- CDEBUG(D_FILE, "%s ino %Lx, gen %Lx\n", rec.path,
- (unsigned long long) data->ioc_ino,
- (unsigned long long) data->ioc_generation);
-
- out:
- if (buf)
- PRESTO_FREE(buf, data->ioc_plen1);
- pop_ctxt(&saved_ctxt);
- EXIT;
- return error;
-}
-
-
+++ /dev/null
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_upcall.h"
-#include "intermezzo_psdev.h"
-#include "intermezzo_kml.h"
-
-int kml_init (struct presto_file_set *fset)
-{
- struct kml_fsdata *data;
-
- ENTRY;
- PRESTO_ALLOC (data, struct kml_fsdata *, sizeof (struct kml_fsdata));
- if (data == NULL) {
- EXIT;
- return -ENOMEM;
- }
- INIT_LIST_HEAD (&data->kml_reint_cache);
- INIT_LIST_HEAD (&data->kml_kop_cache);
-
- PRESTO_ALLOC (data->kml_buf, char *, KML_REINT_MAXBUF);
- if (data->kml_buf == NULL) {
- PRESTO_FREE (data, sizeof (struct kml_fsdata));
- EXIT;
- return -ENOMEM;
- }
-
- data->kml_maxsize = KML_REINT_MAXBUF;
- data->kml_len = 0;
- data->kml_reintpos = 0;
- data->kml_count = 0;
- fset->fset_kmldata = data;
- EXIT;
- return 0;
-}
-
-int kml_cleanup (struct presto_file_set *fset)
-{
- struct kml_fsdata *data = fset->fset_kmldata;
-
- if (data == NULL)
- return 0;
-
- fset->fset_kmldata = NULL;
-#if 0
- kml_sop_cleanup (&data->kml_reint_cache);
- kml_kop_cleanup (&data->kml_kop_cache);
-#endif
- PRESTO_FREE (data->kml_buf, KML_REINT_MAXBUF);
- PRESTO_FREE (data, sizeof (struct kml_fsdata));
- return 0;
-}
-
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Unpacking of KML records
- *
- */
-
-#ifdef __KERNEL__
-# include <linux/module.h>
-# include <linux/errno.h>
-# include <linux/kernel.h>
-# include <linux/major.h>
-# include <linux/sched.h>
-# include <linux/lp.h>
-# include <linux/slab.h>
-# include <linux/ioport.h>
-# include <linux/fcntl.h>
-# include <linux/delay.h>
-# include <linux/skbuff.h>
-# include <linux/proc_fs.h>
-# include <linux/vmalloc.h>
-# include <linux/fs.h>
-# include <linux/poll.h>
-# include <linux/init.h>
-# include <linux/list.h>
-# include <linux/stat.h>
-# include <asm/io.h>
-# include <asm/segment.h>
-# include <asm/system.h>
-# include <asm/poll.h>
-# include <asm/uaccess.h>
-#else
-# include <time.h>
-# include <stdio.h>
-# include <string.h>
-# include <stdlib.h>
-# include <errno.h>
-# include <sys/stat.h>
-# include <glib.h>
-#endif
-
-#include "intermezzo_lib.h"
-#include "intermezzo_idl.h"
-#include "intermezzo_fs.h"
-
-int kml_unpack_version(struct presto_version **ver, char **buf, char *end)
-{
- char *ptr = *buf;
- struct presto_version *pv;
-
- UNLOGP(*ver, struct presto_version, ptr, end);
- pv = *ver;
- pv->pv_mtime_sec = NTOH__u32(pv->pv_mtime_sec);
- pv->pv_mtime_nsec = NTOH__u32(pv->pv_mtime_nsec);
- pv->pv_ctime_sec = NTOH__u32(pv->pv_ctime_sec);
- pv->pv_ctime_nsec = NTOH__u32(pv->pv_ctime_nsec);
- pv->pv_size = NTOH__u64(pv->pv_size);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_noop(struct kml_rec *rec, char **buf, char *end)
-{
- return 0;
-}
-
-
-static int kml_unpack_get_fileid(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
-
- *buf = ptr;
- return 0;
-}
-
-static int kml_unpack_create(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_parentv, &ptr, end);
- kml_unpack_version(&rec->new_parentv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- LUNLOGV(rec->mode, __u32, ptr, end);
- LUNLOGV(rec->uid, __u32, ptr, end);
- LUNLOGV(rec->gid, __u32, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_mkdir(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_parentv, &ptr, end);
- kml_unpack_version(&rec->new_parentv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- LUNLOGV(rec->mode, __u32, ptr, end);
- LUNLOGV(rec->uid, __u32, ptr, end);
- LUNLOGV(rec->gid, __u32, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_unlink(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_parentv, &ptr, end);
- kml_unpack_version(&rec->new_parentv, &ptr, end);
- kml_unpack_version(&rec->old_objectv, &ptr, end);
- LUNLOGV(rec->old_mode, __u32, ptr, end);
- LUNLOGV(rec->old_rdev, __u32, ptr, end);
- LUNLOGV(rec->old_uid, __u64, ptr, end);
- LUNLOGV(rec->old_gid, __u64, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- LUNLOGV(rec->targetlen, __u32, ptr, end);
- LUNLOGV(rec->old_targetlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
- UNLOGL(rec->target, char, rec->targetlen, ptr, end);
- UNLOGL(rec->old_target, char, rec->old_targetlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_rmdir(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_parentv, &ptr, end);
- kml_unpack_version(&rec->new_parentv, &ptr, end);
- kml_unpack_version(&rec->old_objectv, &ptr, end);
- LUNLOGV(rec->old_mode, __u32, ptr, end);
- LUNLOGV(rec->old_rdev, __u32, ptr, end);
- LUNLOGV(rec->old_uid, __u64, ptr, end);
- LUNLOGV(rec->old_gid, __u64, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- LUNLOGV(rec->targetlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
- UNLOGL(rec->target, char, rec->targetlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_close(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- LUNLOGV(rec->mode, __u32, ptr, end); // used for open_mode
- LUNLOGV(rec->uid, __u32, ptr, end); // used for open_uid
- LUNLOGV(rec->gid, __u32, ptr, end); // used for open_gid
- kml_unpack_version(&rec->old_objectv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- LUNLOGV(rec->ino, __u64, ptr, end);
- LUNLOGV(rec->generation, __u32, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_symlink(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_parentv, &ptr, end);
- kml_unpack_version(&rec->new_parentv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- LUNLOGV(rec->uid, __u32, ptr, end);
- LUNLOGV(rec->gid, __u32, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- LUNLOGV(rec->targetlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
- UNLOGL(rec->target, char, rec->targetlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_rename(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_objectv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- kml_unpack_version(&rec->old_parentv, &ptr, end);
- kml_unpack_version(&rec->new_parentv, &ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- LUNLOGV(rec->targetlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
- UNLOGL(rec->target, char, rec->targetlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_setattr(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_objectv, &ptr, end);
- LUNLOGV(rec->valid, __u32, ptr, end);
- LUNLOGV(rec->mode, __u32, ptr, end);
- LUNLOGV(rec->uid, __u32, ptr, end);
- LUNLOGV(rec->gid, __u32, ptr, end);
- LUNLOGV(rec->size, __u64, ptr, end);
- LUNLOGV(rec->mtime_sec, __u32, ptr, end);
- LUNLOGV(rec->mtime_nsec, __u32, ptr, end);
- LUNLOGV(rec->ctime_sec, __u32, ptr, end);
- LUNLOGV(rec->ctime_nsec, __u32, ptr, end);
- LUNLOGV(rec->flags, __u32, ptr, end);
- LUNLOGV(rec->old_mode, __u32, ptr, end);
- LUNLOGV(rec->old_rdev, __u32, ptr, end);
- LUNLOGV(rec->old_uid, __u64, ptr, end);
- LUNLOGV(rec->old_gid, __u64, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_link(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_parentv, &ptr, end);
- kml_unpack_version(&rec->new_parentv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- LUNLOGV(rec->targetlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
- UNLOGL(rec->target, char, rec->targetlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-static int kml_unpack_mknod(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_parentv, &ptr, end);
- kml_unpack_version(&rec->new_parentv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- LUNLOGV(rec->mode, __u32, ptr, end);
- LUNLOGV(rec->uid, __u32, ptr, end);
- LUNLOGV(rec->gid, __u32, ptr, end);
- LUNLOGV(rec->major, __u32, ptr, end);
- LUNLOGV(rec->minor, __u32, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_write(struct kml_rec *rec, char **buf, char *end)
-{
- printf("NOT IMPLEMENTED");
- return 0;
-}
-
-
-static int kml_unpack_release(struct kml_rec *rec, char **buf, char *end)
-{
- printf("NOT IMPLEMENTED");
- return 0;
-}
-
-
-static int kml_unpack_trunc(struct kml_rec *rec, char **buf, char *end)
-{
- printf("NOT IMPLEMENTED");
- return 0;
-}
-
-
-static int kml_unpack_setextattr(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_objectv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- LUNLOGV(rec->flags, __u32, ptr, end);
- LUNLOGV(rec->mode, __u32, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- LUNLOGV(rec->namelen, __u32, ptr, end);
- LUNLOGV(rec->targetlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
- UNLOGL(rec->name, char, rec->namelen, ptr, end);
- UNLOGL(rec->target, char, rec->targetlen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-
-static int kml_unpack_delextattr(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- kml_unpack_version(&rec->old_objectv, &ptr, end);
- kml_unpack_version(&rec->new_objectv, &ptr, end);
- LUNLOGV(rec->flags, __u32, ptr, end);
- LUNLOGV(rec->mode, __u32, ptr, end);
- LUNLOGV(rec->pathlen, __u32, ptr, end);
- LUNLOGV(rec->namelen, __u32, ptr, end);
- LUNLOGV(rec->targetlen, __u32, ptr, end);
- UNLOGL(rec->path, char, rec->pathlen, ptr, end);
- UNLOGL(rec->name, char, rec->namelen, ptr, end);
-
- *buf = ptr;
-
- return 0;
-}
-
-static int kml_unpack_open(struct kml_rec *rec, char **buf, char *end)
-{
- printf("NOT IMPLEMENTED");
- return 0;
-}
-
-static int kml_unpack_kml_trunc(struct kml_rec *rec, char **buf, char *end)
-{
-
- printf("NOT IMPLEMENTED");
- return 0;
-}
-
-
-typedef int (*unpacker)(struct kml_rec *rec, char **buf, char *end);
-
-static unpacker unpackers[KML_OPCODE_NUM] =
-{
- [KML_OPCODE_NOOP] = kml_unpack_noop,
- [KML_OPCODE_CREATE] = kml_unpack_create,
- [KML_OPCODE_MKDIR] = kml_unpack_mkdir,
- [KML_OPCODE_UNLINK] = kml_unpack_unlink,
- [KML_OPCODE_RMDIR] = kml_unpack_rmdir,
- [KML_OPCODE_CLOSE] = kml_unpack_close,
- [KML_OPCODE_SYMLINK] = kml_unpack_symlink,
- [KML_OPCODE_RENAME] = kml_unpack_rename,
- [KML_OPCODE_SETATTR] = kml_unpack_setattr,
- [KML_OPCODE_LINK] = kml_unpack_link,
- [KML_OPCODE_OPEN] = kml_unpack_open,
- [KML_OPCODE_MKNOD] = kml_unpack_mknod,
- [KML_OPCODE_WRITE] = kml_unpack_write,
- [KML_OPCODE_RELEASE] = kml_unpack_release,
- [KML_OPCODE_TRUNC] = kml_unpack_trunc,
- [KML_OPCODE_SETEXTATTR] = kml_unpack_setextattr,
- [KML_OPCODE_DELEXTATTR] = kml_unpack_delextattr,
- [KML_OPCODE_KML_TRUNC] = kml_unpack_kml_trunc,
- [KML_OPCODE_GET_FILEID] = kml_unpack_get_fileid
-};
-
-int kml_unpack_prefix(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
- int n;
-
- UNLOGP(rec->prefix.hdr, struct kml_prefix_hdr, ptr, end);
- rec->prefix.hdr->len = NTOH__u32(rec->prefix.hdr->len);
- rec->prefix.hdr->version = NTOH__u32(rec->prefix.hdr->version);
- rec->prefix.hdr->pid = NTOH__u32(rec->prefix.hdr->pid);
- rec->prefix.hdr->auid = NTOH__u32(rec->prefix.hdr->auid);
- rec->prefix.hdr->fsuid = NTOH__u32(rec->prefix.hdr->fsuid);
- rec->prefix.hdr->fsgid = NTOH__u32(rec->prefix.hdr->fsgid);
- rec->prefix.hdr->opcode = NTOH__u32(rec->prefix.hdr->opcode);
- rec->prefix.hdr->ngroups = NTOH__u32(rec->prefix.hdr->ngroups);
-
- UNLOGL(rec->prefix.groups, __u32, rec->prefix.hdr->ngroups, ptr, end);
- for (n = 0; n < rec->prefix.hdr->ngroups; n++) {
- rec->prefix.groups[n] = NTOH__u32(rec->prefix.groups[n]);
- }
-
- *buf = ptr;
-
- return 0;
-}
-
-int kml_unpack_suffix(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
-
- UNLOGP(rec->suffix, struct kml_suffix, ptr, end);
- rec->suffix->prevrec = NTOH__u32(rec->suffix->prevrec);
- rec->suffix->recno = NTOH__u32(rec->suffix->recno);
- rec->suffix->time = NTOH__u32(rec->suffix->time);
- rec->suffix->len = NTOH__u32(rec->suffix->len);
-
- *buf = ptr;
-
- return 0;
-}
-
-int kml_unpack(struct kml_rec *rec, char **buf, char *end)
-{
- char *ptr = *buf;
- int err;
-
- if (((unsigned long)ptr % 4) != 0) {
- printf("InterMezzo: %s: record misaligned.\n", __FUNCTION__);
- return -EINVAL;
- }
-
- while (ptr < end) {
- __u32 *i = (__u32 *)ptr;
- if (*i)
- break;
- ptr += sizeof(*i);
- }
- *buf = ptr;
-
- memset(rec, 0, sizeof(*rec));
-
- err = kml_unpack_prefix(rec, &ptr, end);
- if (err) {
- printf("InterMezzo: %s: unpack_prefix failed: %d\n",
- __FUNCTION__, err);
- return err;
- }
-
- if (rec->prefix.hdr->opcode < 0 ||
- rec->prefix.hdr->opcode >= KML_OPCODE_NUM) {
- printf("InterMezzo: %s: invalid opcode (%d)\n",
- __FUNCTION__, rec->prefix.hdr->opcode);
- return -EINVAL;
- }
- err = unpackers[rec->prefix.hdr->opcode](rec, &ptr, end);
- if (err) {
- printf("InterMezzo: %s: unpacker failed: %d\n",
- __FUNCTION__, err);
- return err;
- }
-
- err = kml_unpack_suffix(rec, &ptr, end);
- if (err) {
- printf("InterMezzo: %s: unpack_suffix failed: %d\n",
- __FUNCTION__, err);
- return err;
- }
-
-
- if (rec->prefix.hdr->len != rec->suffix->len) {
- printf("InterMezzo: %s: lengths don't match\n",
- __FUNCTION__);
- return -EINVAL;
- }
- if ((rec->prefix.hdr->len % 4) != 0) {
- printf("InterMezzo: %s: record length not a "
- "multiple of 4.\n", __FUNCTION__);
- return -EINVAL;
- }
- if (ptr - *buf != rec->prefix.hdr->len) {
- printf("InterMezzo: %s: unpacking error\n",
- __FUNCTION__);
- return -EINVAL;
- }
- while (ptr < end) {
- __u32 *i = (__u32 *)ptr;
- if (*i)
- break;
- ptr += sizeof(*i);
- }
- *buf = ptr;
- return 0;
-}
-
-
-#ifndef __KERNEL__
-#define STR(ptr) ((ptr))? (ptr) : ""
-
-#define OPNAME(n) [KML_OPCODE_##n] = #n
-static char *opnames[KML_OPCODE_NUM] = {
- OPNAME(NOOP),
- OPNAME(CREATE),
- OPNAME(MKDIR),
- OPNAME(UNLINK),
- OPNAME(RMDIR),
- OPNAME(CLOSE),
- OPNAME(SYMLINK),
- OPNAME(RENAME),
- OPNAME(SETATTR),
- OPNAME(LINK),
- OPNAME(OPEN),
- OPNAME(MKNOD),
- OPNAME(WRITE),
- OPNAME(RELEASE),
- OPNAME(TRUNC),
- OPNAME(SETEXTATTR),
- OPNAME(DELEXTATTR),
- OPNAME(KML_TRUNC),
- OPNAME(GET_FILEID)
-};
-#undef OPNAME
-
-static char *print_opname(int op)
-{
- if (op < 0 || op >= sizeof (opnames) / sizeof (*opnames))
- return NULL;
- return opnames[op];
-}
-
-
-static char *print_time(__u64 i)
-{
- char buf[128];
-
- memset(buf, 0, 128);
-
-#ifndef __KERNEL__
- strftime(buf, 128, "%Y/%m/%d %H:%M:%S", gmtime((time_t *)&i));
-#else
- sprintf(buf, "%Ld\n", i);
-#endif
-
- return strdup(buf);
-}
-
-static char *print_version(struct presto_version *ver)
-{
- char ver_buf[128];
- char *mtime;
- char *ctime;
-
- if (!ver || ver->pv_ctime == 0) {
- return strdup("");
- }
- mtime = print_time(ver->pv_mtime);
- ctime = print_time(ver->pv_ctime);
- sprintf(ver_buf, "mtime %s, ctime %s, len %lld",
- mtime, ctime, ver->pv_size);
- free(mtime);
- free(ctime);
- return strdup(ver_buf);
-}
-
-
-char *kml_print_rec(struct kml_rec *rec, int brief)
-{
- char *str;
- char *nov, *oov, *ntv, *otv, *npv, *opv;
- char *rectime, *mtime, *ctime;
-
- if (brief) {
- str = g_strdup_printf(" %08d %7s %*s %*s",
- rec->suffix->recno,
- print_opname (rec->prefix.hdr->opcode),
- rec->pathlen, STR(rec->path),
- rec->targetlen, STR(rec->target));
-
- return str;
- }
-
- rectime = print_time(rec->suffix->time);
- mtime = print_time(rec->mtime);
- ctime = print_time(rec->ctime);
-
- nov = print_version(rec->new_objectv);
- oov = print_version(rec->old_objectv);
- ntv = print_version(rec->new_targetv);
- otv = print_version(rec->old_targetv);
- npv = print_version(rec->new_parentv);
- opv = print_version(rec->old_parentv);
-
- str = g_strdup_printf("\n -- Record:\n"
- " Recno %d\n"
- " KML off %lld\n"
- " Version %d\n"
- " Len %d\n"
- " Suf len %d\n"
- " Time %s\n"
- " Opcode %d\n"
- " Op %s\n"
- " Pid %d\n"
- " AUid %d\n"
- " Fsuid %d\n"
- " Fsgid %d\n"
- " Prevrec %d\n"
- " Ngroups %d\n"
- //" Groups @{$self->{groups}}\n"
- " -- Path:\n"
- " Inode %d\n"
- " Gen num %u\n"
- " Old mode %o\n"
- " Old rdev %x\n"
- " Old uid %llu\n"
- " Old gid %llu\n"
- " Path %*s\n"
- //" Open_mode %o\n",
- " Pathlen %d\n"
- " Tgt %*s\n"
- " Tgtlen %d\n"
- " Old Tgt %*s\n"
- " Old Tgtln %d\n"
- " -- Attr:\n"
- " Valid %x\n"
- " mode %o, uid %d, gid %d, size %lld, mtime %s, ctime %s rdev %x (%d:%d)\n"
- " -- Versions:\n"
- " New object %s\n"
- " Old object %s\n"
- " New target %s\n"
- " Old target %s\n"
- " New parent %s\n"
- " Old parent %s\n",
-
- rec->suffix->recno,
- rec->offset,
- rec->prefix.hdr->version,
- rec->prefix.hdr->len,
- rec->suffix->len,
- rectime,
- rec->prefix.hdr->opcode,
- print_opname (rec->prefix.hdr->opcode),
- rec->prefix.hdr->pid,
- rec->prefix.hdr->auid,
- rec->prefix.hdr->fsuid,
- rec->prefix.hdr->fsgid,
- rec->suffix->prevrec,
- rec->prefix.hdr->ngroups,
- rec->ino,
- rec->generation,
- rec->old_mode,
- rec->old_rdev,
- rec->old_uid,
- rec->old_gid,
- rec->pathlen,
- STR(rec->path),
- rec->pathlen,
- rec->targetlen,
- STR(rec->target),
- rec->targetlen,
- rec->old_targetlen,
- STR(rec->old_target),
- rec->old_targetlen,
-
- rec->valid,
- rec->mode,
- rec->uid,
- rec->gid,
- rec->size,
- mtime,
- ctime,
- rec->rdev, rec->major, rec->minor,
- nov, oov, ntv, otv, npv, opv);
-
- free(nov);
- free(oov);
- free(ntv);
- free(otv);
- free(npv);
- free(opv);
-
- free(rectime);
- free(ctime);
- free(mtime);
-
- return str;
-}
-#endif
+++ /dev/null
-#include <linux/list.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_kml.h"
-
-
-// dlogit -- oppsite to logit ()
-// return the sbuf + size;
-char *dlogit (void *tbuf, const void *sbuf, int size)
-{
- char *ptr = (char *)sbuf;
- memcpy(tbuf, ptr, size);
- ptr += size;
- return ptr;
-}
-
-static spinlock_t kml_lock = SPIN_LOCK_UNLOCKED;
-static char buf[1024];
-char * bdup_printf (char *format, ...)
-{
- va_list args;
- int i;
- char *path;
- unsigned long flags;
-
- spin_lock_irqsave(&kml_lock, flags);
- va_start(args, format);
- i = vsprintf(buf, format, args); /* hopefully i < sizeof(buf) */
- va_end(args);
-
- PRESTO_ALLOC (path, char *, i + 1);
- if (path == NULL)
- return NULL;
- strcpy (path, buf);
-
- spin_unlock_irqrestore(&kml_lock, flags);
- return path;
-}
-
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2000 Stelias Computing, Inc.
- * Copyright (C) 2000 Red Hat, Inc.
- * Copyright (C) 2000 Mountain View Data, Inc.
- *
- * Extended Attribute Support
- * Copyright (C) 2001 Shirish H. Phatak, Tacit Networks, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/ext2_fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <linux/fsfilter.h>
-#include "intermezzo_fs.h"
-
-
-int filter_print_entry = 0;
-int filter_debug = 0xfffffff;
-/*
- * The function in this file are responsible for setting up the
- * correct methods layered file systems like InterMezzo and snapfs
- */
-
-
-static struct filter_fs filter_oppar[FILTER_FS_TYPES];
-
-/* get to the upper methods (intermezzo, snapfs) */
-inline struct super_operations *filter_c2usops(struct filter_fs *cache)
-{
- return &cache->o_fops.filter_sops;
-}
-
-inline struct inode_operations *filter_c2udiops(struct filter_fs *cache)
-{
- return &cache->o_fops.filter_dir_iops;
-}
-
-
-inline struct inode_operations *filter_c2ufiops(struct filter_fs *cache)
-{
- return &cache->o_fops.filter_file_iops;
-}
-
-inline struct inode_operations *filter_c2usiops(struct filter_fs *cache)
-{
- return &cache->o_fops.filter_sym_iops;
-}
-
-
-inline struct file_operations *filter_c2udfops(struct filter_fs *cache)
-{
- return &cache->o_fops.filter_dir_fops;
-}
-
-inline struct file_operations *filter_c2uffops(struct filter_fs *cache)
-{
- return &cache->o_fops.filter_file_fops;
-}
-
-inline struct file_operations *filter_c2usfops(struct filter_fs *cache)
-{
- return &cache->o_fops.filter_sym_fops;
-}
-
-inline struct dentry_operations *filter_c2udops(struct filter_fs *cache)
-{
- return &cache->o_fops.filter_dentry_ops;
-}
-
-/* get to the cache (lower) methods */
-inline struct super_operations *filter_c2csops(struct filter_fs *cache)
-{
- return cache->o_caops.cache_sops;
-}
-
-inline struct inode_operations *filter_c2cdiops(struct filter_fs *cache)
-{
- return cache->o_caops.cache_dir_iops;
-}
-
-inline struct inode_operations *filter_c2cfiops(struct filter_fs *cache)
-{
- return cache->o_caops.cache_file_iops;
-}
-
-inline struct inode_operations *filter_c2csiops(struct filter_fs *cache)
-{
- return cache->o_caops.cache_sym_iops;
-}
-
-inline struct file_operations *filter_c2cdfops(struct filter_fs *cache)
-{
- return cache->o_caops.cache_dir_fops;
-}
-
-inline struct file_operations *filter_c2cffops(struct filter_fs *cache)
-{
- return cache->o_caops.cache_file_fops;
-}
-
-inline struct file_operations *filter_c2csfops(struct filter_fs *cache)
-{
- return cache->o_caops.cache_sym_fops;
-}
-
-inline struct dentry_operations *filter_c2cdops(struct filter_fs *cache)
-{
- return cache->o_caops.cache_dentry_ops;
-}
-
-
-void filter_setup_journal_ops(struct filter_fs *ops, char *cache_type)
-{
- if ( strlen(cache_type) == strlen("ext2") &&
- memcmp(cache_type, "ext2", strlen("ext2")) == 0 ) {
-#ifdef CONFIG_EXT2_FS
- ops->o_trops = &presto_ext2_journal_ops;
-#else
- ops->o_trops = NULL;
-#endif
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("ext3") &&
- memcmp(cache_type, "ext3", strlen("ext3")) == 0 ) {
-#if defined(CONFIG_EXT3_FS) || defined (CONFIG_EXT3_FS_MODULE)
- ops->o_trops = &presto_ext3_journal_ops;
-#else
- ops->o_trops = NULL;
-#endif
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("tmpfs") &&
- memcmp(cache_type, "tmpfs", strlen("tmpfs")) == 0 ) {
-#if defined(CONFIG_TMPFS)
- ops->o_trops = &presto_tmpfs_journal_ops;
-#else
- ops->o_trops = NULL;
-#endif
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("reiserfs") &&
- memcmp(cache_type, "reiserfs", strlen("reiserfs")) == 0 ) {
-#if 0
- /* #if defined(CONFIG_REISERFS_FS) || defined(CONFIG_REISERFS_FS_MODULE) */
- ops->o_trops = &presto_reiserfs_journal_ops;
-#else
- ops->o_trops = NULL;
-#endif
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("xfs") &&
- memcmp(cache_type, "xfs", strlen("xfs")) == 0 ) {
-#if 0
-/*#if defined(CONFIG_XFS_FS) || defined (CONFIG_XFS_FS_MODULE) */
- ops->o_trops = &presto_xfs_journal_ops;
-#else
- ops->o_trops = NULL;
-#endif
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("obdfs") &&
- memcmp(cache_type, "obdfs", strlen("obdfs")) == 0 ) {
-#if defined(CONFIG_OBDFS_FS) || defined (CONFIG_OBDFS_FS_MODULE)
- ops->o_trops = presto_obdfs_journal_ops;
-#else
- ops->o_trops = NULL;
-#endif
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-}
-
-
-/* find the cache for this FS */
-struct filter_fs *filter_get_filter_fs(const char *cache_type)
-{
- struct filter_fs *ops = NULL;
- FENTRY;
-
- if ( strlen(cache_type) == strlen("ext2") &&
- memcmp(cache_type, "ext2", strlen("ext2")) == 0 ) {
- ops = &filter_oppar[FILTER_FS_EXT2];
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("xfs") &&
- memcmp(cache_type, "xfs", strlen("xfs")) == 0 ) {
- ops = &filter_oppar[FILTER_FS_XFS];
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("ext3") &&
- memcmp(cache_type, "ext3", strlen("ext3")) == 0 ) {
- ops = &filter_oppar[FILTER_FS_EXT3];
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("tmpfs") &&
- memcmp(cache_type, "tmpfs", strlen("tmpfs")) == 0 ) {
- ops = &filter_oppar[FILTER_FS_TMPFS];
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if ( strlen(cache_type) == strlen("reiserfs") &&
- memcmp(cache_type, "reiserfs", strlen("reiserfs")) == 0 ) {
- ops = &filter_oppar[FILTER_FS_REISERFS];
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
- if ( strlen(cache_type) == strlen("obdfs") &&
- memcmp(cache_type, "obdfs", strlen("obdfs")) == 0 ) {
- ops = &filter_oppar[FILTER_FS_OBDFS];
- FDEBUG(D_SUPER, "ops at %p\n", ops);
- }
-
- if (ops == NULL) {
- CERROR("prepare to die: unrecognized cache type for Filter\n");
- }
- FEXIT;
- return ops;
-}
-
-
-/*
- * Frobnicate the InterMezzo operations
- * this establishes the link between the InterMezzo file system
- * and the underlying file system used for the cache.
- */
-
-void filter_setup_super_ops(struct filter_fs *cache, struct super_operations *cache_sops, struct super_operations *filter_sops)
-{
- /* Get ptr to the shared struct snapfs_ops structure. */
- struct filter_ops *props = &cache->o_fops;
- /* Get ptr to the shared struct cache_ops structure. */
- struct cache_ops *caops = &cache->o_caops;
-
- FENTRY;
-
- if ( cache->o_flags & FILTER_DID_SUPER_OPS ) {
- FEXIT;
- return;
- }
- cache->o_flags |= FILTER_DID_SUPER_OPS;
-
- /* Set the cache superblock operations to point to the
- superblock operations of the underlying file system. */
- caops->cache_sops = cache_sops;
-
- /*
- * Copy the cache (real fs) superblock ops to the "filter"
- * superblock ops as defaults. Some will be changed below
- */
- memcpy(&props->filter_sops, cache_sops, sizeof(*cache_sops));
-
- /* 'put_super' unconditionally is that of filter */
- if (filter_sops->put_super) {
- props->filter_sops.put_super = filter_sops->put_super;
- }
-
- if (cache_sops->read_inode) {
- props->filter_sops.read_inode = filter_sops->read_inode;
- FDEBUG(D_INODE, "setting filter_read_inode, cache_ops %p, cache %p, ri at %p\n",
- cache, cache, props->filter_sops.read_inode);
- }
-
- if (cache_sops->remount_fs)
- props->filter_sops.remount_fs = filter_sops->remount_fs;
- FEXIT;
-}
-
-
-void filter_setup_dir_ops(struct filter_fs *cache, struct inode *inode, struct inode_operations *filter_iops, struct file_operations *filter_fops)
-{
- struct inode_operations *cache_filter_iops;
- struct inode_operations *cache_iops = inode->i_op;
- struct file_operations *cache_fops = inode->i_fop;
- FENTRY;
-
- if ( cache->o_flags & FILTER_DID_DIR_OPS ) {
- FEXIT;
- return;
- }
- cache->o_flags |= FILTER_DID_DIR_OPS;
-
- /* former ops become cache_ops */
- cache->o_caops.cache_dir_iops = cache_iops;
- cache->o_caops.cache_dir_fops = cache_fops;
- FDEBUG(D_SUPER, "filter at %p, cache iops %p, iops %p\n",
- cache, cache_iops, filter_c2udiops(cache));
-
- /* setup our dir iops: copy and modify */
- memcpy(filter_c2udiops(cache), cache_iops, sizeof(*cache_iops));
-
- /* abbreviate */
- cache_filter_iops = filter_c2udiops(cache);
-
- /* methods that filter if cache filesystem has these ops */
- if (cache_iops->lookup && filter_iops->lookup)
- cache_filter_iops->lookup = filter_iops->lookup;
- if (cache_iops->create && filter_iops->create)
- cache_filter_iops->create = filter_iops->create;
- if (cache_iops->link && filter_iops->link)
- cache_filter_iops->link = filter_iops->link;
- if (cache_iops->unlink && filter_iops->unlink)
- cache_filter_iops->unlink = filter_iops->unlink;
- if (cache_iops->mkdir && filter_iops->mkdir)
- cache_filter_iops->mkdir = filter_iops->mkdir;
- if (cache_iops->rmdir && filter_iops->rmdir)
- cache_filter_iops->rmdir = filter_iops->rmdir;
- if (cache_iops->symlink && filter_iops->symlink)
- cache_filter_iops->symlink = filter_iops->symlink;
- if (cache_iops->rename && filter_iops->rename)
- cache_filter_iops->rename = filter_iops->rename;
- if (cache_iops->mknod && filter_iops->mknod)
- cache_filter_iops->mknod = filter_iops->mknod;
- if (cache_iops->permission && filter_iops->permission)
- cache_filter_iops->permission = filter_iops->permission;
- if (cache_iops->getattr)
- cache_filter_iops->getattr = filter_iops->getattr;
- /* Some filesystems do not use a setattr method of their own
- instead relying on inode_setattr/write_inode. We still need to
- journal these so we make setattr an unconditional operation.
- XXX: we should probably check for write_inode. SHP
- */
- /*if (cache_iops->setattr)*/
- cache_filter_iops->setattr = filter_iops->setattr;
-#ifdef CONFIG_FS_EXT_ATTR
- /* For now we assume that posix acls are handled through extended
- * attributes. If this is not the case, we must explicitly trap
- * posix_set_acl. SHP
- */
- if (cache_iops->set_ext_attr && filter_iops->set_ext_attr)
- cache_filter_iops->set_ext_attr = filter_iops->set_ext_attr;
-#endif
-
-
- /* copy dir fops */
- memcpy(filter_c2udfops(cache), cache_fops, sizeof(*cache_fops));
-
- /* unconditional filtering operations */
- filter_c2udfops(cache)->ioctl = filter_fops->ioctl;
-
- FEXIT;
-}
-
-
-void filter_setup_file_ops(struct filter_fs *cache, struct inode *inode, struct inode_operations *filter_iops, struct file_operations *filter_fops)
-{
- struct inode_operations *pr_iops;
- struct inode_operations *cache_iops = inode->i_op;
- struct file_operations *cache_fops = inode->i_fop;
- FENTRY;
-
- if ( cache->o_flags & FILTER_DID_FILE_OPS ) {
- FEXIT;
- return;
- }
- cache->o_flags |= FILTER_DID_FILE_OPS;
-
- /* steal the old ops */
- /* former ops become cache_ops */
- cache->o_caops.cache_file_iops = cache_iops;
- cache->o_caops.cache_file_fops = cache_fops;
-
- /* abbreviate */
- pr_iops = filter_c2ufiops(cache);
-
- /* setup our dir iops: copy and modify */
- memcpy(pr_iops, cache_iops, sizeof(*cache_iops));
-
- /* copy dir fops */
- CERROR("*** cache file ops at %p\n", cache_fops);
- memcpy(filter_c2uffops(cache), cache_fops, sizeof(*cache_fops));
-
- /* assign */
- /* See comments above in filter_setup_dir_ops. SHP */
- /*if (cache_iops->setattr)*/
- pr_iops->setattr = filter_iops->setattr;
- if (cache_iops->getattr)
- pr_iops->getattr = filter_iops->getattr;
- /* XXX Should this be conditional rmr ? */
- pr_iops->permission = filter_iops->permission;
-#ifdef CONFIG_FS_EXT_ATTR
- /* For now we assume that posix acls are handled through extended
- * attributes. If this is not the case, we must explicitly trap and
- * posix_set_acl
- */
- if (cache_iops->set_ext_attr && filter_iops->set_ext_attr)
- pr_iops->set_ext_attr = filter_iops->set_ext_attr;
-#endif
-
-
- /* unconditional filtering operations */
- filter_c2uffops(cache)->open = filter_fops->open;
- filter_c2uffops(cache)->release = filter_fops->release;
- filter_c2uffops(cache)->write = filter_fops->write;
- filter_c2uffops(cache)->ioctl = filter_fops->ioctl;
-
- FEXIT;
-}
-
-/* XXX in 2.3 there are "fast" and "slow" symlink ops for ext2 XXX */
-void filter_setup_symlink_ops(struct filter_fs *cache, struct inode *inode, struct inode_operations *filter_iops, struct file_operations *filter_fops)
-{
- struct inode_operations *pr_iops;
- struct inode_operations *cache_iops = inode->i_op;
- struct file_operations *cache_fops = inode->i_fop;
- FENTRY;
-
- if ( cache->o_flags & FILTER_DID_SYMLINK_OPS ) {
- FEXIT;
- return;
- }
- cache->o_flags |= FILTER_DID_SYMLINK_OPS;
-
- /* steal the old ops */
- cache->o_caops.cache_sym_iops = cache_iops;
- cache->o_caops.cache_sym_fops = cache_fops;
-
- /* abbreviate */
- pr_iops = filter_c2usiops(cache);
-
- /* setup our dir iops: copy and modify */
- memcpy(pr_iops, cache_iops, sizeof(*cache_iops));
-
- /* See comments above in filter_setup_dir_ops. SHP */
- /* if (cache_iops->setattr) */
- pr_iops->setattr = filter_iops->setattr;
- if (cache_iops->getattr)
- pr_iops->getattr = filter_iops->getattr;
-
- /* assign */
- /* copy fops - careful for symlinks they might be NULL */
- if ( cache_fops ) {
- memcpy(filter_c2usfops(cache), cache_fops, sizeof(*cache_fops));
- }
-
- FEXIT;
-}
-
-void filter_setup_dentry_ops(struct filter_fs *cache,
- struct dentry_operations *cache_dop,
- struct dentry_operations *filter_dop)
-{
- if ( cache->o_flags & FILTER_DID_DENTRY_OPS ) {
- FEXIT;
- return;
- }
- cache->o_flags |= FILTER_DID_DENTRY_OPS;
-
- cache->o_caops.cache_dentry_ops = cache_dop;
- memcpy(&cache->o_fops.filter_dentry_ops,
- filter_dop, sizeof(*filter_dop));
-
- if (cache_dop && cache_dop != filter_dop && cache_dop->d_revalidate){
- CERROR("WARNING: filter overriding revalidation!\n");
- }
- return;
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Author: Peter J. Braam <braam@clusterfs.com>
- * Copyright (C) 1998 Stelias Computing Inc
- * Copyright (C) 1999 Red Hat Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * This file implements basic routines supporting the semantics
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/namei.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/string.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-int presto_walk(const char *name, struct nameidata *nd)
-{
- int err;
- /* we do not follow symlinks to support symlink operations
- correctly. The vfs should always hand us resolved dentries
- so we should not be required to use LOOKUP_FOLLOW. At the
- reintegrating end, lento again should be working with the
- resolved pathname and not the symlink. SHP
- XXX: This code implies that direct symlinks do not work. SHP
- */
- unsigned int flags = 0; //LOOKUP_POSITIVE;
-
- ENTRY;
- err = path_lookup(name, flags, nd);
- return err;
-}
-
-
-/* find the presto minor device for this inode */
-int presto_i2m(struct inode *inode)
-{
- struct presto_cache *cache;
- ENTRY;
- cache = presto_get_cache(inode);
- CDEBUG(D_PSDEV, "\n");
- if ( !cache ) {
- CERROR("PRESTO: BAD: cannot find cache for dev %s, ino %ld\n",
- inode->i_sb->s_id, inode->i_ino);
- EXIT;
- return -1;
- }
- EXIT;
- return cache->cache_psdev->uc_minor;
-}
-
-inline int presto_f2m(struct presto_file_set *fset)
-{
- return fset->fset_cache->cache_psdev->uc_minor;
-
-}
-
-inline int presto_c2m(struct presto_cache *cache)
-{
- return cache->cache_psdev->uc_minor;
-
-}
-
-/* XXX check this out */
-struct presto_file_set *presto_path2fileset(const char *name)
-{
- struct nameidata nd;
- struct presto_file_set *fileset;
- int error;
- ENTRY;
-
- error = presto_walk(name, &nd);
- if (!error) {
-#if 0
- error = do_revalidate(nd.dentry);
-#endif
- if (!error)
- fileset = presto_fset(nd.dentry);
- path_release(&nd);
- EXIT;
- } else
- fileset = ERR_PTR(error);
-
- EXIT;
- return fileset;
-}
-
-/* check a flag on this dentry or fset root. Semantics:
- - most flags: test if it is set
- - PRESTO_ATTR, PRESTO_DATA return 1 if PRESTO_FSETINSYNC is set
-*/
-int presto_chk(struct dentry *dentry, int flag)
-{
- int minor;
- struct presto_file_set *fset = presto_fset(dentry);
-
- ENTRY;
- minor = presto_i2m(dentry->d_inode);
- if ( izo_channels[minor].uc_no_filter ) {
- EXIT;
- return ~0;
- }
-
- /* if the fileset is in sync DATA and ATTR are OK */
- if ( fset &&
- (flag == PRESTO_ATTR || flag == PRESTO_DATA) &&
- (fset->fset_flags & FSET_INSYNC) ) {
- CDEBUG(D_INODE, "fset in sync (ino %ld)!\n",
- fset->fset_dentry->d_inode->i_ino);
- EXIT;
- return 1;
- }
-
- EXIT;
- return (presto_d2d(dentry)->dd_flags & flag);
-}
-
-/* set a bit in the dentry flags */
-void presto_set(struct dentry *dentry, int flag)
-{
- ENTRY;
- if ( dentry->d_inode ) {
- CDEBUG(D_INODE, "SET ino %ld, flag %x\n",
- dentry->d_inode->i_ino, flag);
- }
- if ( presto_d2d(dentry) == NULL) {
- CERROR("dentry without d_fsdata in presto_set: %p: %*s", dentry,
- dentry->d_name.len, dentry->d_name.name);
- BUG();
- }
- presto_d2d(dentry)->dd_flags |= flag;
- EXIT;
-}
-
-/* given a path: complete the closes on the fset */
-int lento_complete_closes(char *path)
-{
- struct nameidata nd;
- struct dentry *dentry;
- int error;
- struct presto_file_set *fset;
- ENTRY;
-
- error = presto_walk(path, &nd);
- if (error) {
- EXIT;
- return error;
- }
-
- dentry = nd.dentry;
-
- error = -ENXIO;
- if ( !presto_ispresto(dentry->d_inode) ) {
- EXIT;
- goto out_complete;
- }
-
- fset = presto_fset(dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto out_complete;
- }
-
- /* transactions and locking are internal to this function */
- error = presto_complete_lml(fset);
-
- EXIT;
- out_complete:
- path_release(&nd);
- return error;
-}
-
-#if 0
-/* given a path: write a close record and cancel an LML record, finally
- call truncate LML. Lento is doing this so it goes in with uid/gid's
- root.
-*/
-int lento_cancel_lml(char *path,
- __u64 lml_offset,
- __u64 remote_ino,
- __u32 remote_generation,
- __u32 remote_version,
- struct lento_vfs_context *info)
-{
- struct nameidata nd;
- struct rec_info rec;
- struct dentry *dentry;
- int error;
- struct presto_file_set *fset;
- void *handle;
- struct presto_version new_ver;
- ENTRY;
-
-
- error = presto_walk(path, &nd);
- if (error) {
- EXIT;
- return error;
- }
- dentry = nd.dentry;
-
- error = -ENXIO;
- if ( !presto_ispresto(dentry->d_inode) ) {
- EXIT;
- goto out_cancel_lml;
- }
-
- fset = presto_fset(dentry);
-
- error=-EINVAL;
- if (fset==NULL) {
- CERROR("No fileset!\n");
- EXIT;
- goto out_cancel_lml;
- }
-
- /* this only requires a transaction below which is automatic */
- handle = presto_trans_start(fset, dentry->d_inode, PRESTO_OP_RELEASE);
- if ( IS_ERR(handle) ) {
- error = -ENOMEM;
- EXIT;
- goto out_cancel_lml;
- }
-
- if (info->flags & LENTO_FL_CANCEL_LML) {
- error = presto_clear_lml_close(fset, lml_offset);
- if ( error ) {
- presto_trans_commit(fset, handle);
- EXIT;
- goto out_cancel_lml;
- }
- }
-
-
- if (info->flags & LENTO_FL_WRITE_KML) {
- presto_getversion(&new_ver, dentry->d_inode);
- error = presto_journal_close(&rec, fset, NULL, dentry,
- &new_ver);
- if ( error ) {
- EXIT;
- presto_trans_commit(fset, handle);
- goto out_cancel_lml;
- }
- }
-
- if (info->flags & LENTO_FL_WRITE_EXPECT) {
- error = presto_write_last_rcvd(&rec, fset, info);
- if ( error < 0 ) {
- EXIT;
- presto_trans_commit(fset, handle);
- goto out_cancel_lml;
- }
- }
-
- presto_trans_commit(fset, handle);
-
- if (info->flags & LENTO_FL_CANCEL_LML) {
- presto_truncate_lml(fset);
- }
-
-
- out_cancel_lml:
- EXIT;
- path_release(&nd);
- return error;
-}
-#endif
-
-/* given a dentry, operate on the flags in its dentry. Used by downcalls */
-int izo_mark_dentry(struct dentry *dentry, int and_flag, int or_flag,
- int *res)
-{
- int error = 0;
-
- if (presto_d2d(dentry) == NULL) {
- CERROR("InterMezzo: no ddata for inode %ld in %s\n",
- dentry->d_inode->i_ino, __FUNCTION__);
- return -EINVAL;
- }
-
- CDEBUG(D_INODE, "inode: %ld, and flag %x, or flag %x, dd_flags %x\n",
- dentry->d_inode->i_ino, and_flag, or_flag,
- presto_d2d(dentry)->dd_flags);
-
- presto_d2d(dentry)->dd_flags &= and_flag;
- presto_d2d(dentry)->dd_flags |= or_flag;
- if (res)
- *res = presto_d2d(dentry)->dd_flags;
-
- return error;
-}
-
-/* given a path, operate on the flags in its cache. Used by mark_ioctl */
-int izo_mark_cache(struct dentry *dentry, int and_flag, int or_flag,
- int *res)
-{
- struct presto_cache *cache;
-
- if (presto_d2d(dentry) == NULL) {
- CERROR("InterMezzo: no ddata for inode %ld in %s\n",
- dentry->d_inode->i_ino, __FUNCTION__);
- return -EINVAL;
- }
-
- CDEBUG(D_INODE, "inode: %ld, and flag %x, or flag %x, dd_flags %x\n",
- dentry->d_inode->i_ino, and_flag, or_flag,
- presto_d2d(dentry)->dd_flags);
-
- cache = presto_get_cache(dentry->d_inode);
- if ( !cache ) {
- CERROR("PRESTO: BAD: cannot find cache in izo_mark_cache\n");
- return -EBADF;
- }
-
- cache->cache_flags &= and_flag;
- cache->cache_flags |= or_flag;
- if (res)
- *res = (int)cache->cache_flags;
-
- return 0;
-}
-
-int presto_set_max_kml_size(const char *path, unsigned long max_size)
-{
- struct presto_file_set *fset;
-
- ENTRY;
-
- fset = presto_path2fileset(path);
- if (IS_ERR(fset)) {
- EXIT;
- return PTR_ERR(fset);
- }
-
- fset->kml_truncate_size = max_size;
- CDEBUG(D_CACHE, "KML truncate size set to %lu bytes for fset %s.\n",
- max_size, path);
-
- EXIT;
- return 0;
-}
-
-int izo_mark_fset(struct dentry *dentry, int and_flag, int or_flag,
- int * res)
-{
- struct presto_file_set *fset;
-
- fset = presto_fset(dentry);
- if ( !fset ) {
- CERROR("PRESTO: BAD: cannot find cache in izo_mark_cache\n");
- make_bad_inode(dentry->d_inode);
- return -EBADF;
- }
- fset->fset_flags &= and_flag;
- fset->fset_flags |= or_flag;
- if (res)
- *res = (int)fset->fset_flags;
-
- return 0;
-}
-
-/* talk to Lento about the permit */
-static int presto_permit_upcall(struct dentry *dentry)
-{
- int rc;
- char *path, *buffer;
- int pathlen;
- int minor;
- int fsetnamelen;
- struct presto_file_set *fset = NULL;
-
- ENTRY;
-
- if ( (minor = presto_i2m(dentry->d_inode)) < 0) {
- EXIT;
- return -EINVAL;
- }
-
- fset = presto_fset(dentry);
- if (!fset) {
- EXIT;
- return -ENOTCONN;
- }
-
- if ( !presto_lento_up(minor) ) {
- if ( fset->fset_flags & FSET_STEAL_PERMIT ) {
- EXIT;
- return 0;
- } else {
- EXIT;
- return -ENOTCONN;
- }
- }
-
- PRESTO_ALLOC(buffer, PAGE_SIZE);
- if ( !buffer ) {
- CERROR("PRESTO: out of memory!\n");
- EXIT;
- return -ENOMEM;
- }
- path = presto_path(dentry, fset->fset_dentry, buffer, PAGE_SIZE);
- pathlen = MYPATHLEN(buffer, path);
- fsetnamelen = strlen(fset->fset_name);
- rc = izo_upc_permit(minor, dentry, pathlen, path, fset->fset_name);
- PRESTO_FREE(buffer, PAGE_SIZE);
- EXIT;
- return rc;
-}
-
-/* get a write permit for the fileset of this inode
- * - if this returns a negative value there was an error
- * - if 0 is returned the permit was already in the kernel -- or --
- * Lento gave us the permit without reintegration
- * - lento returns the number of records it reintegrated
- *
- * Note that if this fileset has branches, a permit will -never- to a normal
- * process for writing in the data area (ie, outside of .intermezzo)
- */
-int presto_get_permit(struct inode * inode)
-{
- struct dentry *de;
- struct presto_file_set *fset;
- int minor = presto_i2m(inode);
- int rc = 0;
-
- ENTRY;
- if (minor < 0) {
- EXIT;
- return -1;
- }
-
- if ( ISLENTO(minor) ) {
- EXIT;
- return 0;
- }
-
- if (list_empty(&inode->i_dentry)) {
- CERROR("No alias for inode %d\n", (int) inode->i_ino);
- EXIT;
- return -EINVAL;
- }
-
- de = list_entry(inode->i_dentry.next, struct dentry, d_alias);
-
- if (presto_chk(de, PRESTO_DONT_JOURNAL)) {
- EXIT;
- return 0;
- }
-
- fset = presto_fset(de);
- if ( !fset ) {
- CERROR("Presto: no fileset in presto_get_permit!\n");
- EXIT;
- return -EINVAL;
- }
-
- if (fset->fset_flags & FSET_HAS_BRANCHES) {
- EXIT;
- return -EROFS;
- }
-
- spin_lock(&fset->fset_permit_lock);
- if (fset->fset_flags & FSET_HASPERMIT) {
- fset->fset_permit_count++;
- CDEBUG(D_INODE, "permit count now %d, inode %lx\n",
- fset->fset_permit_count, inode->i_ino);
- spin_unlock(&fset->fset_permit_lock);
- EXIT;
- return 0;
- }
-
- /* Allow reintegration to proceed without locks -SHP */
- fset->fset_permit_upcall_count++;
- if (fset->fset_permit_upcall_count == 1) {
- spin_unlock(&fset->fset_permit_lock);
- rc = presto_permit_upcall(fset->fset_dentry);
- spin_lock(&fset->fset_permit_lock);
- fset->fset_permit_upcall_count--;
- if (rc == 0) {
- izo_mark_fset(fset->fset_dentry, ~0, FSET_HASPERMIT,
- NULL);
- fset->fset_permit_count++;
- } else if (rc == ENOTCONN) {
- CERROR("InterMezzo: disconnected operation. stealing permit.\n");
- izo_mark_fset(fset->fset_dentry, ~0, FSET_HASPERMIT,
- NULL);
- fset->fset_permit_count++;
- /* set a disconnected flag here to stop upcalls */
- rc = 0;
- } else {
- CERROR("InterMezzo: presto_permit_upcall failed: %d\n", rc);
- rc = -EROFS;
- /* go to sleep here and try again? */
- }
- wake_up_interruptible(&fset->fset_permit_queue);
- } else {
- /* Someone is already doing an upcall; go to sleep. */
- DECLARE_WAITQUEUE(wait, current);
-
- spin_unlock(&fset->fset_permit_lock);
- add_wait_queue(&fset->fset_permit_queue, &wait);
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- spin_lock(&fset->fset_permit_lock);
- if (fset->fset_permit_upcall_count == 0)
- break;
- spin_unlock(&fset->fset_permit_lock);
-
- if (signal_pending(current)) {
- remove_wait_queue(&fset->fset_permit_queue,
- &wait);
- return -ERESTARTSYS;
- }
- schedule();
- }
- remove_wait_queue(&fset->fset_permit_queue, &wait);
- /* We've been woken up: do we have the permit? */
- if (fset->fset_flags & FSET_HASPERMIT)
- /* FIXME: Is this the right thing? */
- rc = -EAGAIN;
- }
-
- CDEBUG(D_INODE, "permit count now %d, ino %ld (likely 1), "
- "rc %d\n", fset->fset_permit_count, inode->i_ino, rc);
- spin_unlock(&fset->fset_permit_lock);
- EXIT;
- return rc;
-}
-
-int presto_put_permit(struct inode * inode)
-{
- struct dentry *de;
- struct presto_file_set *fset;
- int minor = presto_i2m(inode);
-
- ENTRY;
- if (minor < 0) {
- EXIT;
- return -1;
- }
-
- if ( ISLENTO(minor) ) {
- EXIT;
- return 0;
- }
-
- if (list_empty(&inode->i_dentry)) {
- CERROR("No alias for inode %d\n", (int) inode->i_ino);
- EXIT;
- return -1;
- }
-
- de = list_entry(inode->i_dentry.next, struct dentry, d_alias);
-
- fset = presto_fset(de);
- if ( !fset ) {
- CERROR("InterMezzo: no fileset in %s!\n", __FUNCTION__);
- EXIT;
- return -1;
- }
-
- if (presto_chk(de, PRESTO_DONT_JOURNAL)) {
- EXIT;
- return 0;
- }
-
- spin_lock(&fset->fset_permit_lock);
- if (fset->fset_flags & FSET_HASPERMIT) {
- if (fset->fset_permit_count > 0)
- fset->fset_permit_count--;
- else
- CERROR("Put permit while permit count is 0, "
- "inode %ld!\n", inode->i_ino);
- } else {
- fset->fset_permit_count = 0;
- CERROR("InterMezzo: put permit while no permit, inode %ld, "
- "flags %x!\n", inode->i_ino, fset->fset_flags);
- }
-
- CDEBUG(D_INODE, "permit count now %d, inode %ld\n",
- fset->fset_permit_count, inode->i_ino);
-
- if (fset->fset_flags & FSET_PERMIT_WAITING &&
- fset->fset_permit_count == 0) {
- CDEBUG(D_INODE, "permit count now 0, ino %ld, wake sleepers\n",
- inode->i_ino);
- wake_up_interruptible(&fset->fset_permit_queue);
- }
- spin_unlock(&fset->fset_permit_lock);
-
- EXIT;
- return 0;
-}
-
-void presto_getversion(struct presto_version * presto_version,
- struct inode * inode)
-{
- presto_version->pv_mtime_sec = inode->i_mtime.tv_sec;
- presto_version->pv_mtime_nsec = inode->i_mtime.tv_nsec;
- presto_version->pv_ctime_sec = inode->i_ctime.tv_sec;
- presto_version->pv_ctime_nsec = inode->i_ctime.tv_nsec;
- presto_version->pv_size = (__u64)inode->i_size;
-}
-
-
-/* If uuid is non-null, it is the uuid of the peer that's making the revocation
- * request. If it is null, this request was made locally, without external
- * pressure to give up the permit. This most often occurs when a client
- * starts up.
- *
- * FIXME: this function needs to be refactored slightly once we start handling
- * multiple clients.
- */
-int izo_revoke_permit(struct dentry *dentry, __u8 uuid[16])
-{
- struct presto_file_set *fset;
- DECLARE_WAITQUEUE(wait, current);
- int minor, rc;
-
- ENTRY;
-
- minor = presto_i2m(dentry->d_inode);
- if (minor < 0) {
- EXIT;
- return -ENODEV;
- }
-
- fset = presto_fset(dentry);
- if (fset == NULL) {
- EXIT;
- return -ENODEV;
- }
-
- spin_lock(&fset->fset_permit_lock);
- if (fset->fset_flags & FSET_PERMIT_WAITING) {
- CERROR("InterMezzo: Two processes are waiting on the same permit--this not yet supported! Aborting this particular permit request...\n");
- EXIT;
- spin_unlock(&fset->fset_permit_lock);
- return -EINVAL;
- }
-
- if (fset->fset_permit_count == 0)
- goto got_permit;
-
- /* Something is still using this permit. Mark that we're waiting for it
- * and go to sleep. */
- rc = izo_mark_fset(dentry, ~0, FSET_PERMIT_WAITING, NULL);
- spin_unlock(&fset->fset_permit_lock);
- if (rc < 0) {
- EXIT;
- return rc;
- }
-
- add_wait_queue(&fset->fset_permit_queue, &wait);
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- spin_lock(&fset->fset_permit_lock);
- if (fset->fset_permit_count == 0)
- break;
- spin_unlock(&fset->fset_permit_lock);
-
- if (signal_pending(current)) {
- /* FIXME: there must be a better thing to return... */
- remove_wait_queue(&fset->fset_permit_queue, &wait);
- EXIT;
- return -ERESTARTSYS;
- }
-
- /* FIXME: maybe there should be a timeout here. */
-
- schedule();
- }
-
- remove_wait_queue(&fset->fset_permit_queue, &wait);
- got_permit:
- /* By this point fset->fset_permit_count is zero and we're holding the
- * lock. */
- CDEBUG(D_CACHE, "InterMezzo: releasing permit inode %ld\n",
- dentry->d_inode->i_ino);
-
- if (uuid != NULL) {
- rc = izo_upc_revoke_permit(minor, fset->fset_name, uuid);
- if (rc < 0) {
- spin_unlock(&fset->fset_permit_lock);
- EXIT;
- return rc;
- }
- }
-
- izo_mark_fset(fset->fset_dentry, ~FSET_PERMIT_WAITING, 0, NULL);
- izo_mark_fset(fset->fset_dentry, ~FSET_HASPERMIT, 0, NULL);
- spin_unlock(&fset->fset_permit_lock);
- EXIT;
- return 0;
-}
-
-inline int presto_is_read_only(struct presto_file_set * fset)
-{
- int minor, mask;
- struct presto_cache *cache = fset->fset_cache;
-
- minor= cache->cache_psdev->uc_minor;
- mask= (ISLENTO(minor)? FSET_LENTO_RO : FSET_CLIENT_RO);
- if ( fset->fset_flags & mask )
- return 1;
- mask= (ISLENTO(minor)? CACHE_LENTO_RO : CACHE_CLIENT_RO);
- return ((cache->cache_flags & mask)? 1 : 0);
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * An implementation of a loadable kernel mode driver providing
- * multiple kernel/user space bidirectional communications links.
- *
- * Author: Alan Cox <alan@cymru.net>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * Adapted to become the Linux 2.0 Coda pseudo device
- * Peter Braam <braam@maths.ox.ac.uk>
- * Michael Callahan <mjc@emmy.smith.edu>
- *
- * Changes for Linux 2.1
- * Copyright (c) 1997 Carnegie-Mellon University
- *
- * Redone again for InterMezzo
- * Copyright (c) 1998 Peter J. Braam
- * Copyright (c) 2000 Mountain View Data, Inc.
- * Copyright (c) 2000 Tacitus Systems, Inc.
- * Copyright (c) 2001 Cluster File Systems, Inc.
- *
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/lp.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/devfs_fs_kernel.h>
-#include <asm/io.h>
-#include <asm/segment.h>
-#include <asm/system.h>
-#include <asm/poll.h>
-#include <asm/uaccess.h>
-#include <linux/miscdevice.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-
-#ifdef PRESTO_DEVEL
-int presto_print_entry = 1;
-int presto_debug = 4095;
-#else
-int presto_print_entry = 0;
-int presto_debug = 0;
-#endif
-
-/* Like inode.c (presto_sym_iops), the initializer is just to prevent
- izo_channels from appearing as a COMMON symbol (and therefore
- interfering with other modules that use the same variable name). */
-struct upc_channel izo_channels[MAX_CHANNEL] = {{0}};
-
-int izo_psdev_get_free_channel(void)
-{
- int i, result = -1;
-
- for (i = 0 ; i < MAX_CHANNEL ; i++ ) {
- if (list_empty(&(izo_channels[i].uc_cache_list))) {
- result = i;
- break;
- }
- }
- return result;
-}
-
-
-int izo_psdev_setpid(int minor)
-{
- struct upc_channel *channel;
- if (minor < 0 || minor >= MAX_CHANNEL) {
- return -EINVAL;
- }
-
- channel = &(izo_channels[minor]);
- /*
- * This ioctl is performed by each Lento that starts up
- * and wants to do further communication with presto.
- */
- CDEBUG(D_PSDEV, "Setting current pid to %d channel %d\n",
- current->pid, minor);
- channel->uc_pid = current->pid;
- spin_lock(&channel->uc_lock);
- if ( !list_empty(&channel->uc_processing) ) {
- struct list_head *lh;
- struct upc_req *req;
- CERROR("WARNING: setpid & processing not empty!\n");
- list_for_each(lh, &channel->uc_processing) {
- req = list_entry(lh, struct upc_req, rq_chain);
- /* freeing of req and data is done by the sleeper */
- wake_up(&req->rq_sleep);
- }
- }
- if ( !list_empty(&channel->uc_processing) ) {
- CERROR("BAD: FAILDED TO CLEAN PROCESSING LIST!\n");
- }
- spin_unlock(&channel->uc_lock);
- EXIT;
- return 0;
-}
-
-int izo_psdev_setchannel(struct file *file, int fd)
-{
-
- struct file *psdev_file = fget(fd);
- struct presto_cache *cache = presto_get_cache(file->f_dentry->d_inode);
-
- if (!psdev_file) {
- CERROR("%s: no psdev_file!\n", __FUNCTION__);
- return -EINVAL;
- }
-
- if (!cache) {
- CERROR("%s: no cache!\n", __FUNCTION__);
- fput(psdev_file);
- return -EINVAL;
- }
-
- if (psdev_file->private_data) {
- CERROR("%s: channel already set!\n", __FUNCTION__);
- fput(psdev_file);
- return -EINVAL;
- }
-
- psdev_file->private_data = cache->cache_psdev;
- fput(psdev_file);
- EXIT;
- return 0;
-}
-
-inline int presto_lento_up(int minor)
-{
- return izo_channels[minor].uc_pid;
-}
-
-static unsigned int presto_psdev_poll(struct file *file, poll_table * wait)
- {
- struct upc_channel *channel = (struct upc_channel *)file->private_data;
- unsigned int mask = POLLOUT | POLLWRNORM;
-
- /* ENTRY; this will flood you */
- if ( ! channel ) {
- CERROR("%s: bad psdev file\n", __FUNCTION__);
- return -EBADF;
- }
-
- poll_wait(file, &(channel->uc_waitq), wait);
-
- spin_lock(&channel->uc_lock);
- if (!list_empty(&channel->uc_pending)) {
- CDEBUG(D_PSDEV, "Non-empty pending list.\n");
- mask |= POLLIN | POLLRDNORM;
- }
- spin_unlock(&channel->uc_lock);
-
- /* EXIT; will flood you */
- return mask;
-}
-
-/*
- * Receive a message written by Lento to the psdev
- */
-static ssize_t presto_psdev_write(struct file *file, const char *buf,
- size_t count, loff_t *off)
-{
- struct upc_channel *channel = (struct upc_channel *)file->private_data;
- struct upc_req *req = NULL;
- struct upc_req *tmp;
- struct list_head *lh;
- struct izo_upcall_resp hdr;
- int error;
-
- if ( ! channel ) {
- CERROR("%s: bad psdev file\n", __FUNCTION__);
- return -EBADF;
- }
-
- /* Peek at the opcode, uniquefier */
- if ( count < sizeof(hdr) ) {
- CERROR("presto_psdev_write: Lento didn't write full hdr.\n");
- return -EINVAL;
- }
-
- error = copy_from_user(&hdr, buf, sizeof(hdr));
- if ( error )
- return -EFAULT;
-
- CDEBUG(D_PSDEV, "(process,opc,uniq)=(%d,%d,%d)\n",
- current->pid, hdr.opcode, hdr.unique);
-
- spin_lock(&channel->uc_lock);
- /* Look for the message on the processing queue. */
- list_for_each(lh, &channel->uc_processing) {
- tmp = list_entry(lh, struct upc_req , rq_chain);
- if (tmp->rq_unique == hdr.unique) {
- req = tmp;
- /* unlink here: keeps search length minimal */
- list_del_init(&req->rq_chain);
- CDEBUG(D_PSDEV,"Eureka opc %d uniq %d!\n",
- hdr.opcode, hdr.unique);
- break;
- }
- }
- spin_unlock(&channel->uc_lock);
- if (!req) {
- CERROR("psdev_write: msg (%d, %d) not found\n",
- hdr.opcode, hdr.unique);
- return(-ESRCH);
- }
-
- /* move data into response buffer. */
- if (req->rq_bufsize < count) {
- CERROR("psdev_write: too much cnt: %d, cnt: %Zd, "
- "opc: %d, uniq: %d.\n",
- req->rq_bufsize, count, hdr.opcode, hdr.unique);
- count = req->rq_bufsize; /* don't have more space! */
- }
- error = copy_from_user(req->rq_data, buf, count);
- if ( error )
- return -EFAULT;
-
- /* adjust outsize: good upcalls can be aware of this */
- req->rq_rep_size = count;
- req->rq_flags |= REQ_WRITE;
-
- wake_up(&req->rq_sleep);
- return(count);
-}
-
-/*
- * Read a message from the kernel to Lento
- */
-static ssize_t presto_psdev_read(struct file * file, char * buf,
- size_t count, loff_t *off)
-{
- struct upc_channel *channel = (struct upc_channel *)file->private_data;
- struct upc_req *req;
- int result = count;
-
- if ( ! channel ) {
- CERROR("%s: bad psdev file\n", __FUNCTION__);
- return -EBADF;
- }
-
- spin_lock(&channel->uc_lock);
- if (list_empty(&(channel->uc_pending))) {
- CDEBUG(D_UPCALL, "Empty pending list in read, not good\n");
- spin_unlock(&channel->uc_lock);
- return -EINVAL;
- }
- req = list_entry((channel->uc_pending.next), struct upc_req, rq_chain);
- list_del(&(req->rq_chain));
- if (! (req->rq_flags & REQ_ASYNC) ) {
- list_add(&(req->rq_chain), channel->uc_processing.prev);
- }
- spin_unlock(&channel->uc_lock);
-
- req->rq_flags |= REQ_READ;
-
- /* Move the input args into userspace */
- CDEBUG(D_PSDEV, "\n");
- if (req->rq_bufsize <= count) {
- result = req->rq_bufsize;
- }
-
- if (count < req->rq_bufsize) {
- CERROR ("psdev_read: buffer too small, read %Zd of %d bytes\n",
- count, req->rq_bufsize);
- }
-
- if ( copy_to_user(buf, req->rq_data, result) ) {
- BUG();
- return -EFAULT;
- }
-
- /* If request was asynchronous don't enqueue, but free */
- if (req->rq_flags & REQ_ASYNC) {
- CDEBUG(D_PSDEV, "psdev_read: async msg (%d, %d), result %d\n",
- req->rq_opcode, req->rq_unique, result);
- PRESTO_FREE(req->rq_data, req->rq_bufsize);
- PRESTO_FREE(req, sizeof(*req));
- return result;
- }
-
- return result;
-}
-
-
-static int presto_psdev_open(struct inode * inode, struct file * file)
-{
- ENTRY;
-
- file->private_data = NULL;
-
- CDEBUG(D_PSDEV, "Psdev_open: caller: %d, flags: %d\n", current->pid, file->f_flags);
-
- EXIT;
- return 0;
-}
-
-
-
-static int presto_psdev_release(struct inode * inode, struct file * file)
-{
- struct upc_channel *channel = (struct upc_channel *)file->private_data;
- struct upc_req *req;
- struct list_head *lh;
- ENTRY;
-
- if ( ! channel ) {
- CERROR("%s: bad psdev file\n", __FUNCTION__);
- return -EBADF;
- }
-
- CDEBUG(D_PSDEV, "Lento: pid %d\n", current->pid);
- channel->uc_pid = 0;
-
- /* Wake up clients so they can return. */
- CDEBUG(D_PSDEV, "Wake up clients sleeping for pending.\n");
- spin_lock(&channel->uc_lock);
- list_for_each(lh, &channel->uc_pending) {
- req = list_entry(lh, struct upc_req, rq_chain);
-
- /* Async requests stay around for a new lento */
- if (req->rq_flags & REQ_ASYNC) {
- continue;
- }
- /* the sleeper will free the req and data */
- req->rq_flags |= REQ_DEAD;
- wake_up(&req->rq_sleep);
- }
-
- CDEBUG(D_PSDEV, "Wake up clients sleeping for processing\n");
- list_for_each(lh, &channel->uc_processing) {
- req = list_entry(lh, struct upc_req, rq_chain);
- /* freeing of req and data is done by the sleeper */
- req->rq_flags |= REQ_DEAD;
- wake_up(&req->rq_sleep);
- }
- spin_unlock(&channel->uc_lock);
- CDEBUG(D_PSDEV, "Done.\n");
-
- EXIT;
- return 0;
-}
-
-static struct file_operations presto_psdev_fops = {
- .owner = THIS_MODULE,
- .read = presto_psdev_read,
- .write = presto_psdev_write,
- .poll = presto_psdev_poll,
- .open = presto_psdev_open,
- .release = presto_psdev_release
-};
-
-/* modules setup */
-static struct miscdevice intermezzo_psdev = {
- INTERMEZZO_MINOR,
- "intermezzo",
- &presto_psdev_fops
-};
-
-int presto_psdev_init(void)
-{
- int i;
- int err;
-
- if ( (err = misc_register(&intermezzo_psdev)) ) {
- CERROR("%s: cannot register %d err %d\n",
- __FUNCTION__, INTERMEZZO_MINOR, err);
- return -EIO;
- }
-
- memset(&izo_channels, 0, sizeof(izo_channels));
- for ( i = 0 ; i < MAX_CHANNEL ; i++ ) {
- struct upc_channel *channel = &(izo_channels[i]);
- INIT_LIST_HEAD(&channel->uc_pending);
- INIT_LIST_HEAD(&channel->uc_processing);
- INIT_LIST_HEAD(&channel->uc_cache_list);
- init_waitqueue_head(&channel->uc_waitq);
- channel->uc_lock = SPIN_LOCK_UNLOCKED;
- channel->uc_hard = 0;
- channel->uc_no_filter = 0;
- channel->uc_no_journal = 0;
- channel->uc_no_upcall = 0;
- channel->uc_timeout = 30;
- channel->uc_errorval = 0;
- channel->uc_minor = i;
- }
- return 0;
-}
-
-void presto_psdev_cleanup(void)
-{
- int i;
-
- misc_deregister(&intermezzo_psdev);
-
- for ( i = 0 ; i < MAX_CHANNEL ; i++ ) {
- struct upc_channel *channel = &(izo_channels[i]);
- struct list_head *lh, *next;
-
- spin_lock(&channel->uc_lock);
- if ( ! list_empty(&channel->uc_pending)) {
- CERROR("Weird, tell Peter: module cleanup and pending list not empty dev %d\n", i);
- }
- if ( ! list_empty(&channel->uc_processing)) {
- CERROR("Weird, tell Peter: module cleanup and processing list not empty dev %d\n", i);
- }
- if ( ! list_empty(&channel->uc_cache_list)) {
- CERROR("Weird, tell Peter: module cleanup and cache listnot empty dev %d\n", i);
- }
- list_for_each_safe(lh, next, &channel->uc_pending) {
- struct upc_req *req;
-
- req = list_entry(lh, struct upc_req, rq_chain);
- if ( req->rq_flags & REQ_ASYNC ) {
- list_del(&(req->rq_chain));
- CDEBUG(D_UPCALL, "free pending upcall type %d\n",
- req->rq_opcode);
- PRESTO_FREE(req->rq_data, req->rq_bufsize);
- PRESTO_FREE(req, sizeof(struct upc_req));
- } else {
- req->rq_flags |= REQ_DEAD;
- wake_up(&req->rq_sleep);
- }
- }
- list_for_each(lh, &channel->uc_processing) {
- struct upc_req *req;
- req = list_entry(lh, struct upc_req, rq_chain);
- list_del(&(req->rq_chain));
- req->rq_flags |= REQ_DEAD;
- wake_up(&req->rq_sleep);
- }
- spin_unlock(&channel->uc_lock);
- }
-}
-
-/*
- * lento_upcall and lento_downcall routines
- */
-static inline unsigned long lento_waitfor_upcall
- (struct upc_channel *channel, struct upc_req *req, int minor)
-{
- DECLARE_WAITQUEUE(wait, current);
- unsigned long posttime;
-
- req->rq_posttime = posttime = jiffies;
-
- add_wait_queue(&req->rq_sleep, &wait);
- for (;;) {
- if ( izo_channels[minor].uc_hard == 0 )
- set_current_state(TASK_INTERRUPTIBLE);
- else
- set_current_state(TASK_UNINTERRUPTIBLE);
-
- /* got a reply */
- if ( req->rq_flags & (REQ_WRITE | REQ_DEAD) )
- break;
-
- /* these cases only apply when TASK_INTERRUPTIBLE */
- if ( !izo_channels[minor].uc_hard && signal_pending(current) ) {
- /* if this process really wants to die, let it go */
- if (sigismember(&(current->pending.signal), SIGKILL)||
- sigismember(&(current->pending.signal), SIGINT) )
- break;
- /* signal is present: after timeout always return
- really smart idea, probably useless ... */
- if ( time_after(jiffies, req->rq_posttime +
- izo_channels[minor].uc_timeout * HZ) )
- break;
- }
- schedule();
- }
-
- spin_lock(&channel->uc_lock);
- list_del_init(&req->rq_chain);
- spin_unlock(&channel->uc_lock);
- remove_wait_queue(&req->rq_sleep, &wait);
- set_current_state(TASK_RUNNING);
-
- CDEBUG(D_SPECIAL, "posttime: %ld, returned: %ld\n",
- posttime, jiffies-posttime);
- return (jiffies - posttime);
-}
-
-/*
- * lento_upcall will return an error in the case of
- * failed communication with Lento _or_ will peek at Lento
- * reply and return Lento's error.
- *
- * As lento has 2 types of errors, normal errors (positive) and internal
- * errors (negative), normal errors are negated, while internal errors
- * are all mapped to -EINTR, while showing a nice warning message. (jh)
- *
- * lento_upcall will always free buffer, either directly, when an upcall
- * is read (in presto_psdev_read), when the filesystem is unmounted, or
- * when the module is unloaded.
- */
-int izo_upc_upcall(int minor, int *size, struct izo_upcall_hdr *buffer,
- int async)
-{
- unsigned long runtime;
- struct upc_channel *channel;
- struct izo_upcall_resp *out;
- struct upc_req *req;
- int error = 0;
-
- ENTRY;
- channel = &(izo_channels[minor]);
-
- if (channel->uc_no_upcall) {
- EXIT;
- goto exit_buf;
- }
- if (!channel->uc_pid && !async) {
- EXIT;
- error = -ENXIO;
- goto exit_buf;
- }
-
- /* Format the request message. */
- PRESTO_ALLOC(req, sizeof(struct upc_req));
- if ( !req ) {
- EXIT;
- error = -ENOMEM;
- goto exit_buf;
- }
- req->rq_data = (void *)buffer;
- req->rq_flags = 0;
- req->rq_bufsize = *size;
- req->rq_rep_size = 0;
- req->rq_opcode = buffer->u_opc;
- req->rq_unique = ++channel->uc_seq;
- init_waitqueue_head(&req->rq_sleep);
-
- /* Fill in the common input args. */
- buffer->u_uniq = req->rq_unique;
- buffer->u_async = async;
-
- /* Remove potential datarace possibility*/
- if ( async )
- req->rq_flags = REQ_ASYNC;
-
- spin_lock(&channel->uc_lock);
- /* Append msg to pending queue and poke Lento. */
- list_add(&req->rq_chain, channel->uc_pending.prev);
- spin_unlock(&channel->uc_lock);
- CDEBUG(D_UPCALL,
- "Proc %d waking Lento %d for(opc,uniq) =(%d,%d) msg at %p.\n",
- current->pid, channel->uc_pid, req->rq_opcode,
- req->rq_unique, req);
- wake_up_interruptible(&channel->uc_waitq);
-
- if ( async ) {
- /* req, rq_data are freed in presto_psdev_read for async */
- /* req->rq_flags = REQ_ASYNC;*/
- EXIT;
- return 0;
- }
-
- /* We can be interrupted while we wait for Lento to process
- * our request. If the interrupt occurs before Lento has read
- * the request, we dequeue and return. If it occurs after the
- * read but before the reply, we dequeue, send a signal
- * message, and return. If it occurs after the reply we ignore
- * it. In no case do we want to restart the syscall. If it
- * was interrupted by a lento shutdown (psdev_close), return
- * ENODEV. */
-
- /* Go to sleep. Wake up on signals only after the timeout. */
- runtime = lento_waitfor_upcall(channel, req, minor);
-
- CDEBUG(D_TIMING, "opc: %d time: %ld uniq: %d size: %d\n",
- req->rq_opcode, jiffies - req->rq_posttime,
- req->rq_unique, req->rq_rep_size);
- CDEBUG(D_UPCALL,
- "..process %d woken up by Lento for req at 0x%p, data at %p\n",
- current->pid, req, req->rq_data);
-
- if (channel->uc_pid) { /* i.e. Lento is still alive */
- /* Op went through, interrupt or not we go on */
- if (req->rq_flags & REQ_WRITE) {
- out = (struct izo_upcall_resp *)req->rq_data;
- /* here we map positive Lento errors to kernel errors */
- if ( out->result < 0 ) {
- CERROR("Tell Peter: Lento returns negative error %d, for oc %d!\n",
- out->result, out->opcode);
- out->result = EINVAL;
- }
- error = -out->result;
- CDEBUG(D_UPCALL, "upcall: (u,o,r) (%d, %d, %d) out at %p\n",
- out->unique, out->opcode, out->result, out);
- *size = req->rq_rep_size;
- EXIT;
- goto exit_req;
- }
- /* Interrupted before lento read it. */
- if ( !(req->rq_flags & REQ_READ) && signal_pending(current)) {
- CDEBUG(D_UPCALL,
- "Interrupt before read: (op,un)=(%d,%d), flags %x\n",
- req->rq_opcode, req->rq_unique, req->rq_flags);
- /* perhaps the best way to convince the app to give up? */
- error = -EINTR;
- EXIT;
- goto exit_req;
- }
-
- /* interrupted after Lento did its read, send signal */
- if ( (req->rq_flags & REQ_READ) && signal_pending(current) ) {
- CDEBUG(D_UPCALL,"Interrupt after read: op = %d.%d, flags = %x\n",
- req->rq_opcode, req->rq_unique, req->rq_flags);
-
- error = -EINTR;
- } else {
- CERROR("Lento: Strange interruption - tell Peter.\n");
- error = -EINTR;
- }
- } else { /* If lento died i.e. !UC_OPEN(channel) */
- CERROR("lento_upcall: Lento dead on (op,un) (%d.%d) flags %d\n",
- req->rq_opcode, req->rq_unique, req->rq_flags);
- error = -ENODEV;
- }
-
-exit_req:
- PRESTO_FREE(req, sizeof(struct upc_req));
-exit_buf:
- PRESTO_FREE(buffer,*size);
- return error;
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- * Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Manage RCVD records for clients in the kernel
- *
- */
-
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/fsfilter.h>
-
-#include "intermezzo_fs.h"
-
-/*
- * this file contains a hash table of replicators/clients for a
- * fileset. It allows fast lookup and update of reintegration status
- */
-
-struct izo_offset_rec {
- struct list_head or_list;
- char or_uuid[16];
- loff_t or_offset;
-};
-
-#define RCACHE_BITS 8
-#define RCACHE_SIZE (1 << RCACHE_BITS)
-#define RCACHE_MASK (RCACHE_SIZE - 1)
-
-static struct list_head *
-izo_rep_cache(void)
-{
- int i;
- struct list_head *cache;
- PRESTO_ALLOC(cache, sizeof(struct list_head) * RCACHE_SIZE);
- if (cache == NULL) {
- CERROR("intermezzo-fatal: no memory for replicator cache\n");
- return NULL;
- }
- memset(cache, 0, sizeof(struct list_head) * RCACHE_SIZE);
- for (i = 0; i < RCACHE_SIZE; i++)
- INIT_LIST_HEAD(&cache[i]);
-
- return cache;
-}
-
-static struct list_head *
-izo_rep_hash(struct list_head *cache, char *uuid)
-{
- return &cache[(RCACHE_MASK & uuid[1])];
-}
-
-static void
-izo_rep_cache_clean(struct presto_file_set *fset)
-{
- int i;
- struct list_head *bucket;
- struct list_head *tmp;
-
- if (fset->fset_clients == NULL)
- return;
- for (i = 0; i < RCACHE_SIZE; i++) {
- tmp = bucket = &fset->fset_clients[i];
-
- tmp = tmp->next;
- while (tmp != bucket) {
- struct izo_offset_rec *offrec;
- tmp = tmp->next;
- list_del(tmp);
- offrec = list_entry(tmp, struct izo_offset_rec,
- or_list);
- PRESTO_FREE(offrec, sizeof(struct izo_offset_rec));
- }
- }
-}
-
-struct izo_offset_rec *
-izo_rep_cache_find(struct presto_file_set *fset, char *uuid)
-{
- struct list_head *tmp, *buck = izo_rep_hash(fset->fset_clients, uuid);
- struct izo_offset_rec *rec = NULL;
-
- list_for_each(tmp, buck) {
- rec = list_entry(tmp, struct izo_offset_rec, or_list);
- if ( memcmp(rec->or_uuid, uuid, sizeof(rec->or_uuid)) == 0 )
- return rec;
- }
-
- return NULL;
-}
-
-static int
-izo_rep_cache_add(struct presto_file_set *fset, struct izo_rcvd_rec *rec,
- loff_t offset)
-{
- struct izo_offset_rec *offrec;
-
- if (izo_rep_cache_find(fset, rec->lr_uuid)) {
- CERROR("izo: duplicate client entry %s off %Ld\n",
- fset->fset_name, offset);
- return -EINVAL;
- }
-
- PRESTO_ALLOC(offrec, sizeof(*offrec));
- if (offrec == NULL) {
- CERROR("izo: cannot allocate offrec\n");
- return -ENOMEM;
- }
-
- memcpy(offrec->or_uuid, rec->lr_uuid, sizeof(rec->lr_uuid));
- offrec->or_offset = offset;
-
- list_add(&offrec->or_list,
- izo_rep_hash(fset->fset_clients, rec->lr_uuid));
- return 0;
-}
-
-int
-izo_rep_cache_init(struct presto_file_set *fset)
-{
- struct izo_rcvd_rec rec;
- loff_t offset = 0, last_offset = 0;
-
- fset->fset_clients = izo_rep_cache();
- if (fset->fset_clients == NULL) {
- CERROR("Error initializing client cache\n");
- return -ENOMEM;
- }
-
- while ( presto_fread(fset->fset_rcvd.fd_file, (char *)&rec,
- sizeof(rec), &offset) == sizeof(rec) ) {
- int rc;
-
- if ((rc = izo_rep_cache_add(fset, &rec, last_offset)) < 0) {
- izo_rep_cache_clean(fset);
- return rc;
- }
-
- last_offset = offset;
- }
-
- return 0;
-}
-
-/*
- * Return local last_rcvd record for the client. Update or create
- * if necessary.
- *
- * XXX: After this call, any -EINVAL from izo_rcvd_get is a real error.
- */
-int
-izo_repstatus(struct presto_file_set *fset, __u64 client_kmlsize,
- struct izo_rcvd_rec *lr_client, struct izo_rcvd_rec *lr_server)
-{
- int rc;
- rc = izo_rcvd_get(lr_server, fset, lr_client->lr_uuid);
- if (rc < 0 && rc != -EINVAL) {
- return rc;
- }
-
- /* client is new or has been reset. */
- if (rc < 0 || (client_kmlsize == 0 && lr_client->lr_remote_offset == 0)) {
- memset(lr_server, 0, sizeof(*lr_server));
- memcpy(lr_server->lr_uuid, lr_client->lr_uuid, sizeof(lr_server->lr_uuid));
- rc = izo_rcvd_write(fset, lr_server);
- if (rc < 0)
- return rc;
- }
-
- /* update intersync */
- rc = izo_upc_repstatus(presto_f2m(fset), fset->fset_name, lr_server);
- return rc;
-}
-
-loff_t
-izo_rcvd_get(struct izo_rcvd_rec *rec, struct presto_file_set *fset, char *uuid)
-{
- struct izo_offset_rec *offrec;
- struct izo_rcvd_rec tmprec;
- loff_t offset;
-
- offrec = izo_rep_cache_find(fset, uuid);
- if (offrec == NULL) {
- CDEBUG(D_SPECIAL, "izo_get_rcvd: uuid not in hash.\n");
- return -EINVAL;
- }
- offset = offrec->or_offset;
-
- if (rec == NULL)
- return offset;
-
- if (presto_fread(fset->fset_rcvd.fd_file, (char *)&tmprec,
- sizeof(tmprec), &offset) != sizeof(tmprec)) {
- CERROR("izo_get_rcvd: Unable to read from last_rcvd file offset "
- "%Lu\n", offset);
- return -EIO;
- }
-
- memcpy(rec->lr_uuid, tmprec.lr_uuid, sizeof(tmprec.lr_uuid));
- rec->lr_remote_recno = le64_to_cpu(tmprec.lr_remote_recno);
- rec->lr_remote_offset = le64_to_cpu(tmprec.lr_remote_offset);
- rec->lr_local_recno = le64_to_cpu(tmprec.lr_local_recno);
- rec->lr_local_offset = le64_to_cpu(tmprec.lr_local_offset);
- rec->lr_last_ctime = le64_to_cpu(tmprec.lr_last_ctime);
-
- return offrec->or_offset;
-}
-
-/* Try to lookup the UUID in the hash. Insert it if it isn't found. Write the
- * data to the file.
- *
- * Returns the offset of the beginning of the record in the last_rcvd file. */
-loff_t
-izo_rcvd_write(struct presto_file_set *fset, struct izo_rcvd_rec *rec)
-{
- struct izo_offset_rec *offrec;
- loff_t offset, rc;
-
- ENTRY;
-
- offrec = izo_rep_cache_find(fset, rec->lr_uuid);
- if (offrec == NULL) {
- /* I don't think it should be possible for an entry to be not in
- * the hash table without also having an invalid offset, but we
- * handle it gracefully regardless. */
- write_lock(&fset->fset_rcvd.fd_lock);
- offset = fset->fset_rcvd.fd_offset;
- fset->fset_rcvd.fd_offset += sizeof(*rec);
- write_unlock(&fset->fset_rcvd.fd_lock);
-
- rc = izo_rep_cache_add(fset, rec, offset);
- if (rc < 0) {
- EXIT;
- return rc;
- }
- } else
- offset = offrec->or_offset;
-
-
- rc = presto_fwrite(fset->fset_rcvd.fd_file, (char *)rec, sizeof(*rec),
- &offset);
- if (rc == sizeof(*rec))
- /* presto_fwrite() advances 'offset' */
- rc = offset - sizeof(*rec);
-
- EXIT;
- return rc;
-}
-
-loff_t
-izo_rcvd_upd_remote(struct presto_file_set *fset, char * uuid, __u64 remote_recno,
- __u64 remote_offset)
-{
- struct izo_rcvd_rec rec;
-
- loff_t rc;
-
- ENTRY;
- rc = izo_rcvd_get(&rec, fset, uuid);
- if (rc < 0)
- return rc;
- rec.lr_remote_recno = remote_recno;
- rec.lr_remote_offset = remote_offset;
-
- rc = izo_rcvd_write(fset, &rec);
- EXIT;
- if (rc < 0)
- return rc;
- return 0;
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
- * Copyright (C) 2000 Stelias Computing, Inc.
- * Copyright (C) 2000 Red Hat, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * presto's super.c
- */
-
-static char rcsid[] __attribute ((unused)) = "$Id: super.c,v 1.4 2002/10/12 02:16:19 rread Exp $";
-#define INTERMEZZO_VERSION "$Revision: 1.4 $"
-
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/ext2_fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/module.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#ifdef PRESTO_DEBUG
-long presto_vmemory = 0;
-long presto_kmemory = 0;
-#endif
-
-/* returns an allocated string, copied out from data if opt is found */
-static char *opt_read(const char *opt, char *data)
-{
- char *value;
- char *retval;
-
- CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
- if ( strncmp(opt, data, strlen(opt)) )
- return NULL;
-
- if ( (value = strchr(data, '=')) == NULL )
- return NULL;
-
- value++;
- PRESTO_ALLOC(retval, strlen(value) + 1);
- if ( !retval ) {
- CERROR("InterMezzo: Out of memory!\n");
- return NULL;
- }
-
- strcpy(retval, value);
- CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
- return retval;
-}
-
-static void opt_store(char **dst, char *opt)
-{
- if (!dst)
- CERROR("intermezzo: store_opt, error dst == NULL\n");
-
- if (*dst)
- PRESTO_FREE(*dst, strlen(*dst) + 1);
- *dst = opt;
-}
-
-static void opt_set_default(char **dst, char *defval)
-{
- if (!dst)
- CERROR("intermezzo: store_opt, error dst == NULL\n");
-
- if (*dst)
- PRESTO_FREE(*dst, strlen(*dst) + 1);
- if (defval) {
- char *def_alloced;
- PRESTO_ALLOC(def_alloced, strlen(defval)+1);
- if (!def_alloced) {
- CERROR("InterMezzo: Out of memory!\n");
- return ;
- }
- strcpy(def_alloced, defval);
- *dst = def_alloced;
- }
-}
-
-
-/* Find the options for InterMezzo in "options", saving them into the
- * passed pointers. If the pointer is null, the option is discarded.
- * Copy out all non-InterMezzo options into cache_data (to be passed
- * to the read_super operation of the cache). The return value will
- * be a pointer to the end of the cache_data.
- */
-static char *presto_options(struct file_system_type *fstype,
- char *options, char *cache_data,
- char **cache_type, char **fileset,
- char **channel)
-{
- char *this_char;
- char *opt_ptr = options;
- char *cache_data_end = cache_data;
-
- /* set the defaults */
- if (strcmp(fstype->name, "intermezzo") == 0)
- opt_set_default(cache_type, "ext3");
- else
- opt_set_default(cache_type, "tmpfs");
-
- if (!options || !cache_data)
- return cache_data_end;
-
-
- CDEBUG(D_SUPER, "parsing options\n");
- while ((this_char = strsep (&opt_ptr, ",")) != NULL) {
- char *opt;
- if (!*this_char)
- continue;
- CDEBUG(D_SUPER, "this_char %s\n", this_char);
-
- if ( (opt = opt_read("fileset", this_char)) ) {
- opt_store(fileset, opt);
- continue;
- }
- if ( (opt = opt_read("cache_type", this_char)) ) {
- opt_store(cache_type, opt);
- continue;
- }
- if ( (opt = opt_read("channel", this_char)) ) {
- opt_store(channel, opt);
- continue;
- }
-
- cache_data_end +=
- sprintf(cache_data_end, "%s%s",
- cache_data_end != cache_data ? ",":"",
- this_char);
- }
-
- return cache_data_end;
-}
-
-static int presto_set_channel(struct presto_cache *cache, char *channel)
-{
- int minor;
-
- ENTRY;
- if (!channel) {
- minor = izo_psdev_get_free_channel();
- } else {
- minor = simple_strtoul(channel, NULL, 0);
- }
- if (minor < 0 || minor >= MAX_CHANNEL) {
- CERROR("all channels in use or channel too large %d\n",
- minor);
- return -EINVAL;
- }
-
- cache->cache_psdev = &(izo_channels[minor]);
- list_add(&cache->cache_channel_list,
- &cache->cache_psdev->uc_cache_list);
-
- EXIT;
- return minor;
-}
-
-/* We always need to remove the presto options before passing
- mount options to cache FS */
-struct super_block *
-presto_get_sb(struct file_system_type *izo_type, int flags,
- const char *devname, void *data)
-{
- struct file_system_type *fstype;
- struct presto_cache *cache = NULL;
- char *cache_data = NULL;
- char *cache_data_end;
- char *cache_type = NULL;
- char *fileset = NULL;
- char *channel = NULL;
- struct super_block *sb;
- int err;
- unsigned int minor;
-
- ENTRY;
-
- /* reserve space for the cache's data */
- PRESTO_ALLOC(cache_data, PAGE_SIZE);
- if ( !cache_data ) {
- CERROR("presto_read_super: Cannot allocate data page.\n");
- EXIT;
- goto out_err;
- }
-
- /* read and validate options */
- cache_data_end = presto_options(izo_type, data, cache_data, &cache_type,
- &fileset, &channel);
-
- /* was there anything for the cache filesystem in the data? */
- if (cache_data_end == cache_data) {
- PRESTO_FREE(cache_data, PAGE_SIZE);
- cache_data_end = cache_data = NULL;
- } else {
- CDEBUG(D_SUPER, "cache_data at %p is: %s\n", cache_data,
- cache_data);
- }
-
- /* set up the cache */
- cache = presto_cache_init();
- if ( !cache ) {
- CERROR("presto_read_super: failure allocating cache.\n");
- EXIT;
- goto out_err;
- }
- cache->cache_type = cache_type;
-
- /* link cache to channel */
- minor = presto_set_channel(cache, channel);
- if (minor < 0) {
- EXIT;
- goto out_err;
- }
-
- CDEBUG(D_SUPER, "Presto: type=%s, fset=%s, dev= %d, flags %x\n",
- cache_type, fileset?fileset:"NULL", minor, cache->cache_flags);
-
- /* get the filter for the cache */
- fstype = get_fs_type(cache_type);
- cache->cache_filter = filter_get_filter_fs((const char *)cache_type);
- if ( !fstype || !cache->cache_filter) {
- CERROR("Presto: unrecognized fs type or cache type\n");
- EXIT;
- goto out_err;
- }
-
- sb = fstype->get_sb(fstype, flags, devname, cache_data);
-
- if ( !sb || IS_ERR(sb)) {
- CERROR("InterMezzo: cache mount failure.\n");
- EXIT;
- goto out_err;
- }
-
- /* can we in fact mount the cache */
- if (sb->s_bdev && (strcmp(fstype->name, "vintermezzo") == 0)) {
- CERROR("vintermezzo must not be used with a block device\n");
- EXIT;
- goto out_err;
- }
-
- /* this might have been freed above */
- if (cache_data) {
- PRESTO_FREE(cache_data, PAGE_SIZE);
- cache_data = NULL;
- }
-
- cache->cache_sb = sb;
- cache->cache_root = dget(sb->s_root);
-
- /* we now know the dev of the cache: hash the cache */
- presto_cache_add(cache);
- err = izo_prepare_fileset(sb->s_root, fileset);
-
- filter_setup_journal_ops(cache->cache_filter, cache->cache_type);
-
- /* make sure we have our own super operations: sb
- still contains the cache operations */
- filter_setup_super_ops(cache->cache_filter, sb->s_op,
- &presto_super_ops);
- sb->s_op = filter_c2usops(cache->cache_filter);
-
- /* get izo directory operations: sb->s_root->d_inode exists now */
- filter_setup_dir_ops(cache->cache_filter, sb->s_root->d_inode,
- &presto_dir_iops, &presto_dir_fops);
- filter_setup_dentry_ops(cache->cache_filter, sb->s_root->d_op,
- &presto_dentry_ops);
- sb->s_root->d_inode->i_op = filter_c2udiops(cache->cache_filter);
- sb->s_root->d_inode->i_fop = filter_c2udfops(cache->cache_filter);
- sb->s_root->d_op = filter_c2udops(cache->cache_filter);
-
- EXIT;
- return sb;
-
- out_err:
- CDEBUG(D_SUPER, "out_err called\n");
- if (cache)
- PRESTO_FREE(cache, sizeof(struct presto_cache));
- if (cache_data)
- PRESTO_FREE(cache_data, PAGE_SIZE);
- if (fileset)
- PRESTO_FREE(fileset, strlen(fileset) + 1);
- if (channel)
- PRESTO_FREE(channel, strlen(channel) + 1);
- if (cache_type)
- PRESTO_FREE(cache_type, strlen(cache_type) + 1);
-
- CDEBUG(D_MALLOC, "mount error exit: kmem %ld, vmem %ld\n",
- presto_kmemory, presto_vmemory);
- return ERR_PTR(-EINVAL);
-}
-
-
-
-
-#ifdef PRESTO_DEVEL
-static DECLARE_FSTYPE(presto_fs_type, "izo", presto_read_super, FS_REQUIRES_DEV);
-static DECLARE_FSTYPE(vpresto_fs_type, "vintermezzo", presto_read_super, FS_LITTER);
-#else
-static struct file_system_type vpresto_fs_type = {
- .owner = THIS_MODULE,
- .name = "vintermezzo",
- .get_sb = presto_get_sb,
- .kill_sb = kill_litter_super,
-};
-static struct file_system_type presto_fs_type = {
- .owner = THIS_MODULE,
- .name = "intermezzo",
- .get_sb = presto_get_sb,
- .kill_sb = kill_block_super,
- .fs_flags = FS_REQUIRES_DEV,
-};
-#endif
-
-
-
-int __init init_intermezzo_fs(void)
-{
- int status;
-
- printk(KERN_INFO "InterMezzo Kernel/Intersync communications " INTERMEZZO_VERSION
- " info@clusterfs.com\n");
-
- status = presto_psdev_init();
- if ( status ) {
- CERROR("Problem (%d) in init_intermezzo_psdev\n", status);
- return status;
- }
-
- status = init_intermezzo_sysctl();
- if (status) {
- CERROR("presto: failed in init_intermezzo_sysctl!\n");
- }
-
- presto_cache_init_hash();
-
- if (!presto_init_ddata_cache()) {
- CERROR("presto out of memory!\n");
- return -ENOMEM;
- }
-
- status = register_filesystem(&presto_fs_type);
- if (status) {
- CERROR("presto: failed in register_filesystem!\n");
- }
- status = register_filesystem(&vpresto_fs_type);
- if (status) {
- CERROR("vpresto: failed in register_filesystem!\n");
- }
- return status;
-}
-
-void __exit exit_intermezzo_fs(void)
-{
- int err;
-
- ENTRY;
-
- if ( (err = unregister_filesystem(&presto_fs_type)) != 0 ) {
- CERROR("presto: failed to unregister filesystem\n");
- }
- if ( (err = unregister_filesystem(&vpresto_fs_type)) != 0 ) {
- CERROR("vpresto: failed to unregister filesystem\n");
- }
-
- presto_psdev_cleanup();
- cleanup_intermezzo_sysctl();
- presto_cleanup_ddata_cache();
- CERROR("after cleanup: kmem %ld, vmem %ld\n",
- presto_kmemory, presto_vmemory);
-}
-
-
-MODULE_AUTHOR("Cluster Filesystems Inc. <info@clusterfs.com>");
-MODULE_DESCRIPTION("InterMezzo Kernel/Intersync communications " INTERMEZZO_VERSION);
-MODULE_LICENSE("GPL");
-
-module_init(init_intermezzo_fs)
-module_exit(exit_intermezzo_fs)
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 1999 Peter J. Braam <braam@clusterfs.com>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Sysctrl entries for Intermezzo!
- */
-
-#include <linux/config.h> /* for CONFIG_PROC_FS */
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/sysctl.h>
-#include <linux/proc_fs.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/stat.h>
-#include <linux/ctype.h>
-#include <linux/init.h>
-#include <asm/bitops.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/utsname.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-/* /proc entries */
-
-#ifdef CONFIG_PROC_FS
-struct proc_dir_entry *proc_fs_intermezzo;
-int intermezzo_mount_get_info( char * buffer, char ** start, off_t offset,
- int length)
-{
- int len=0;
-
- /* this works as long as we are below 1024 characters! */
- *start = buffer + offset;
- len -= offset;
-
- if ( len < 0 )
- return -EINVAL;
-
- return len;
-}
-
-#endif
-
-
-/* SYSCTL below */
-
-static struct ctl_table_header *intermezzo_table_header = NULL;
-/* 0x100 to avoid any chance of collisions at any point in the tree with
- * non-directories
- */
-#define PSDEV_INTERMEZZO (0x100)
-
-#define PSDEV_DEBUG 1 /* control debugging */
-#define PSDEV_TRACE 2 /* control enter/leave pattern */
-#define PSDEV_TIMEOUT 3 /* timeout on upcalls to become intrble */
-#define PSDEV_HARD 4 /* mount type "hard" or "soft" */
-#define PSDEV_NO_FILTER 5 /* controls presto_chk */
-#define PSDEV_NO_JOURNAL 6 /* controls presto_chk */
-#define PSDEV_NO_UPCALL 7 /* controls lento_upcall */
-#define PSDEV_ERRORVAL 8 /* controls presto_debug_fail_blkdev */
-#define PSDEV_EXCL_GID 9 /* which GID is ignored by presto */
-#define PSDEV_BYTES_TO_CLOSE 11 /* bytes to write before close */
-
-/* These are global presto control options */
-#define PRESTO_PRIMARY_CTLCNT 2
-static struct ctl_table presto_table[ PRESTO_PRIMARY_CTLCNT + MAX_CHANNEL + 1] =
-{
- {PSDEV_DEBUG, "debug", &presto_debug, sizeof(int), 0644, NULL, &proc_dointvec},
- {PSDEV_TRACE, "trace", &presto_print_entry, sizeof(int), 0644, NULL, &proc_dointvec},
-};
-
-/*
- * Intalling the sysctl entries: strategy
- * - have templates for each /proc/sys/intermezzo/ entry
- * such an entry exists for each /dev/presto
- * (proto_channel_entry)
- * - have a template for the contents of such directories
- * (proto_psdev_table)
- * - have the master table (presto_table)
- *
- * When installing, malloc, memcpy and fix up the pointers to point to
- * the appropriate constants in izo_channels[your_minor]
- */
-
-static ctl_table proto_psdev_table[] = {
- {PSDEV_HARD, "hard", 0, sizeof(int), 0644, NULL, &proc_dointvec},
- {PSDEV_NO_FILTER, "no_filter", 0, sizeof(int), 0644, NULL, &proc_dointvec},
- {PSDEV_NO_JOURNAL, "no_journal", NULL, sizeof(int), 0644, NULL, &proc_dointvec},
- {PSDEV_NO_UPCALL, "no_upcall", NULL, sizeof(int), 0644, NULL, &proc_dointvec},
- {PSDEV_TIMEOUT, "timeout", NULL, sizeof(int), 0644, NULL, &proc_dointvec},
-#ifdef PRESTO_DEBUG
- {PSDEV_ERRORVAL, "errorval", NULL, sizeof(int), 0644, NULL, &proc_dointvec},
-#endif
- { 0 }
-};
-
-static ctl_table proto_channel_entry = {
- PSDEV_INTERMEZZO, 0, NULL, 0, 0555, 0,
-};
-
-static ctl_table intermezzo_table[2] = {
- {PSDEV_INTERMEZZO, "intermezzo", NULL, 0, 0555, presto_table},
- {0}
-};
-
-/* support for external setting and getting of opts. */
-/* particularly via ioctl. The Right way to do this is via sysctl,
- * but that will have to wait until intermezzo gets its own nice set of
- * sysctl IDs
- */
-/* we made these separate as setting may in future be more restricted
- * than getting
- */
-#ifdef RON_MINNICH
-int dosetopt(int minor, struct psdev_opt *opt)
-{
- int retval = 0;
- int newval = opt->optval;
-
- ENTRY;
-
- switch(opt->optname) {
-
- case PSDEV_TIMEOUT:
- izo_channels[minor].uc_timeout = newval;
- break;
-
- case PSDEV_HARD:
- izo_channels[minor].uc_hard = newval;
- break;
-
- case PSDEV_NO_FILTER:
- izo_channels[minor].uc_no_filter = newval;
- break;
-
- case PSDEV_NO_JOURNAL:
- izo_channels[minor].uc_no_journal = newval;
- break;
-
- case PSDEV_NO_UPCALL:
- izo_channels[minor].uc_no_upcall = newval;
- break;
-
-#ifdef PRESTO_DEBUG
- case PSDEV_ERRORVAL: {
- /* If we have a positive arg, set a breakpoint for that
- * value. If we have a negative arg, make that device
- * read-only. FIXME It would be much better to only
- * allow setting the underlying device read-only for the
- * current presto cache.
- */
- int errorval = izo_channels[minor].uc_errorval;
- if (errorval < 0) {
- if (newval == 0)
- set_device_ro(-errorval, 0);
- else
- CERROR("device %s already read only\n",
- kdevname(-errorval));
- } else {
- if (newval < 0)
- set_device_ro(-newval, 1);
- izo_channels[minor].uc_errorval = newval;
- CDEBUG(D_PSDEV, "setting errorval to %d\n", newval);
- }
-
- break;
- }
-#endif
-
- case PSDEV_TRACE:
- case PSDEV_DEBUG:
- case PSDEV_BYTES_TO_CLOSE:
- default:
- CDEBUG(D_PSDEV,
- "ioctl: dosetopt: minor %d, bad optname 0x%x, \n",
- minor, opt->optname);
-
- retval = -EINVAL;
- }
-
- EXIT;
- return retval;
-}
-
-int dogetopt(int minor, struct psdev_opt *opt)
-{
- int retval = 0;
-
- ENTRY;
-
- switch(opt->optname) {
-
- case PSDEV_TIMEOUT:
- opt->optval = izo_channels[minor].uc_timeout;
- break;
-
- case PSDEV_HARD:
- opt->optval = izo_channels[minor].uc_hard;
- break;
-
- case PSDEV_NO_FILTER:
- opt->optval = izo_channels[minor].uc_no_filter;
- break;
-
- case PSDEV_NO_JOURNAL:
- opt->optval = izo_channels[minor].uc_no_journal;
- break;
-
- case PSDEV_NO_UPCALL:
- opt->optval = izo_channels[minor].uc_no_upcall;
- break;
-
-#ifdef PSDEV_DEBUG
- case PSDEV_ERRORVAL: {
- int errorval = izo_channels[minor].uc_errorval;
- if (errorval < 0 && is_read_only(-errorval))
- CERROR("device %s has been set read-only\n",
- kdevname(-errorval));
- opt->optval = izo_channels[minor].uc_errorval;
- break;
- }
-#endif
-
- case PSDEV_TRACE:
- case PSDEV_DEBUG:
- case PSDEV_BYTES_TO_CLOSE:
- default:
- CDEBUG(D_PSDEV,
- "ioctl: dogetopt: minor %d, bad optval 0x%x, \n",
- minor, opt->optname);
-
- retval = -EINVAL;
- }
-
- EXIT;
- return retval;
-}
-#endif
-
-
-/* allocate the tables for the presto devices. We need
- * sizeof(proto_channel_table)/sizeof(proto_channel_table[0])
- * entries for each dev
- */
-int /* __init */ init_intermezzo_sysctl(void)
-{
- int i;
- int total_dev = MAX_CHANNEL;
- int entries_per_dev = sizeof(proto_psdev_table) /
- sizeof(proto_psdev_table[0]);
- int total_entries = entries_per_dev * total_dev;
- ctl_table *dev_ctl_table;
-
- PRESTO_ALLOC(dev_ctl_table, sizeof(ctl_table) * total_entries);
-
- if (! dev_ctl_table) {
- CERROR("WARNING: presto couldn't allocate dev_ctl_table\n");
- EXIT;
- return -ENOMEM;
- }
-
- /* now fill in the entries ... we put the individual presto<x>
- * entries at the end of the table, and the per-presto stuff
- * starting at the front. We assume that the compiler makes
- * this code more efficient, but really, who cares ... it
- * happens once per reboot.
- */
- for(i = 0; i < total_dev; i++) {
- void *p;
-
- /* entry for this /proc/sys/intermezzo/intermezzo"i" */
- ctl_table *psdev = &presto_table[i + PRESTO_PRIMARY_CTLCNT];
- /* entries for the individual "files" in this "directory" */
- ctl_table *psdev_entries = &dev_ctl_table[i * entries_per_dev];
- /* init the psdev and psdev_entries with the prototypes */
- *psdev = proto_channel_entry;
- memcpy(psdev_entries, proto_psdev_table,
- sizeof(proto_psdev_table));
- /* now specialize them ... */
- /* the psdev has to point to psdev_entries, and fix the number */
- psdev->ctl_name = psdev->ctl_name + i + 1; /* sorry */
-
- PRESTO_ALLOC(p, PROCNAME_SIZE);
- psdev->procname = p;
- if (!psdev->procname) {
- PRESTO_FREE(dev_ctl_table,
- sizeof(ctl_table) * total_entries);
- return -ENOMEM;
- }
- sprintf((char *) psdev->procname, "intermezzo%d", i);
- /* hook presto into */
- psdev->child = psdev_entries;
-
- /* now for each psdev entry ... */
- psdev_entries[0].data = &(izo_channels[i].uc_hard);
- psdev_entries[1].data = &(izo_channels[i].uc_no_filter);
- psdev_entries[2].data = &(izo_channels[i].uc_no_journal);
- psdev_entries[3].data = &(izo_channels[i].uc_no_upcall);
- psdev_entries[4].data = &(izo_channels[i].uc_timeout);
-#ifdef PRESTO_DEBUG
- psdev_entries[5].data = &(izo_channels[i].uc_errorval);
-#endif
- }
-
-
-#ifdef CONFIG_SYSCTL
- if ( !intermezzo_table_header )
- intermezzo_table_header =
- register_sysctl_table(intermezzo_table, 0);
-#endif
-#ifdef CONFIG_PROC_FS
- proc_fs_intermezzo = proc_mkdir("intermezzo", proc_root_fs);
- proc_fs_intermezzo->owner = THIS_MODULE;
- create_proc_info_entry("mounts", 0, proc_fs_intermezzo,
- intermezzo_mount_get_info);
-#endif
- return 0;
-}
-
-void cleanup_intermezzo_sysctl(void)
-{
- int total_dev = MAX_CHANNEL;
- int entries_per_dev = sizeof(proto_psdev_table) /
- sizeof(proto_psdev_table[0]);
- int total_entries = entries_per_dev * total_dev;
- int i;
-
-#ifdef CONFIG_SYSCTL
- if ( intermezzo_table_header )
- unregister_sysctl_table(intermezzo_table_header);
- intermezzo_table_header = NULL;
-#endif
- for(i = 0; i < total_dev; i++) {
- /* entry for this /proc/sys/intermezzo/intermezzo"i" */
- ctl_table *psdev = &presto_table[i + PRESTO_PRIMARY_CTLCNT];
- PRESTO_FREE(psdev->procname, PROCNAME_SIZE);
- }
- /* presto_table[PRESTO_PRIMARY_CTLCNT].child points to the
- * dev_ctl_table previously allocated in init_intermezzo_psdev()
- */
- PRESTO_FREE(presto_table[PRESTO_PRIMARY_CTLCNT].child, sizeof(ctl_table) * total_entries);
-
-#ifdef CONFIG_PROC_FS
- remove_proc_entry("mounts", proc_fs_intermezzo);
- remove_proc_entry("intermezzo", proc_root_fs);
-#endif
-}
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc. <braam@clusterfs.com>
- * Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Mostly platform independent upcall operations to a cache manager:
- * -- upcalls
- * -- upcall routines
- *
- */
-
-#include <asm/system.h>
-#include <asm/segment.h>
-#include <asm/signal.h>
-#include <linux/signal.h>
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <asm/uaccess.h>
-
-#include "intermezzo_lib.h"
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#include "intermezzo_idl.h"
-
-/*
- At present:
- -- Asynchronous calls:
- - kml: give a "more" kml indication to userland
- - kml_truncate: initiate KML truncation
- - release_permit: kernel is done with permit
- -- Synchronous
- - open: fetch file
- - permit: get a permit
-
- Errors returned by user level code are positive
-
- */
-
-static struct izo_upcall_hdr *upc_pack(__u32 opcode, int pathlen, char *path,
- char *fsetname, int reclen, char *rec,
- int *size)
-{
- struct izo_upcall_hdr *hdr;
- char *ptr;
- ENTRY;
-
- *size = sizeof(struct izo_upcall_hdr);
- if ( fsetname ) {
- *size += round_strlen(fsetname);
- }
- if ( path ) {
- *size += round_strlen(path);
- }
- if ( rec ) {
- *size += size_round(reclen);
- }
- PRESTO_ALLOC(hdr, *size);
- if (!hdr) {
- CERROR("intermezzo upcall: out of memory (opc %d)\n", opcode);
- EXIT;
- return NULL;
- }
- memset(hdr, 0, *size);
-
- ptr = (char *)hdr + sizeof(*hdr);
-
- /* XXX do we need fsuid ? */
- hdr->u_len = *size;
- hdr->u_version = IZO_UPC_VERSION;
- hdr->u_opc = opcode;
- hdr->u_pid = current->pid;
- hdr->u_uid = current->fsuid;
-
- if (path) {
- /*XXX Robert: please review what len to pass in for
- NUL terminated strings */
- hdr->u_pathlen = strlen(path);
- LOGL0(path, hdr->u_pathlen, ptr);
- }
- if (fsetname) {
- hdr->u_fsetlen = strlen(fsetname);
- LOGL0(fsetname, strlen(fsetname), ptr);
- }
- if (rec) {
- hdr->u_reclen = reclen;
- LOGL(rec, reclen, ptr);
- }
-
- EXIT;
- return hdr;
-}
-
-/* the upcalls */
-int izo_upc_kml(int minor, __u64 offset, __u32 first_recno, __u64 length, __u32 last_recno, char *fsetname)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
-
- ENTRY;
- if (!presto_lento_up(minor)) {
- EXIT;
- return 0;
- }
-
- hdr = upc_pack(IZO_UPC_KML, 0, NULL, fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- hdr->u_offset = offset;
- hdr->u_first_recno = first_recno;
- hdr->u_length = length;
- hdr->u_last_recno = last_recno;
-
- CDEBUG(D_UPCALL, "KML: fileset %s, offset %Lu, length %Lu, "
- "first %u, last %d; minor %d\n",
- fsetname,
- (unsigned long long) hdr->u_offset,
- (unsigned long long) hdr->u_length,
- hdr->u_first_recno,
- hdr->u_last_recno, minor);
-
- error = izo_upc_upcall(minor, &size, hdr, ASYNCHRONOUS);
-
- EXIT;
- return -error;
-}
-
-int izo_upc_kml_truncate(int minor, __u64 length, __u32 last_recno, char *fsetname)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
-
- ENTRY;
- if (!presto_lento_up(minor)) {
- EXIT;
- return 0;
- }
-
- hdr = upc_pack(IZO_UPC_KML_TRUNC, 0, NULL, fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- hdr->u_length = length;
- hdr->u_last_recno = last_recno;
-
- CDEBUG(D_UPCALL, "KML TRUNCATE: fileset %s, length %Lu, "
- "last recno %d, minor %d\n",
- fsetname,
- (unsigned long long) hdr->u_length,
- hdr->u_last_recno, minor);
-
- error = izo_upc_upcall(minor, &size, hdr, ASYNCHRONOUS);
-
- EXIT;
- return error;
-}
-
-int izo_upc_open(int minor, __u32 pathlen, char *path, char *fsetname, struct lento_vfs_context *info)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_OPEN, pathlen, path, fsetname,
- sizeof(*info), (char*)info, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- CDEBUG(D_UPCALL, "path %s\n", path);
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
-
-int izo_upc_get_fileid(int minor, __u32 reclen, char *rec,
- __u32 pathlen, char *path, char *fsetname)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_GET_FILEID, pathlen, path, fsetname, reclen, rec, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- CDEBUG(D_UPCALL, "path %s\n", path);
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
-
-int izo_upc_backfetch(int minor, char *path, char *fsetname, struct lento_vfs_context *info)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_BACKFETCH, strlen(path), path, fsetname,
- sizeof(*info), (char *)info, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- /* This is currently synchronous, kml_reint_record blocks */
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
-
-int izo_upc_permit(int minor, struct dentry *dentry, __u32 pathlen, char *path,
- char *fsetname)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
-
- ENTRY;
-
- hdr = upc_pack(IZO_UPC_PERMIT, pathlen, path, fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- CDEBUG(D_UPCALL, "Permit minor %d path %s\n", minor, path);
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
-
- if (error == -EROFS) {
- int err;
- CERROR("InterMezzo: ERROR - requested permit for read-only "
- "fileset.\n Setting \"%s\" read-only!\n", path);
- err = izo_mark_cache(dentry, 0xFFFFFFFF, CACHE_CLIENT_RO, NULL);
- if (err)
- CERROR("InterMezzo ERROR: mark_cache %d\n", err);
- } else if (error) {
- CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
- }
-
- EXIT;
- return error;
-}
-
-/* This is a ping-pong upcall handled on the server when a client (uuid)
- * requests the permit for itself. */
-int izo_upc_revoke_permit(int minor, char *fsetname, __u8 uuid[16])
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
-
- ENTRY;
-
- hdr = upc_pack(IZO_UPC_REVOKE_PERMIT, 0, NULL, fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- memcpy(hdr->u_uuid, uuid, sizeof(hdr->u_uuid));
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
-
- if (error)
- CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
-
-int izo_upc_go_fetch_kml(int minor, char *fsetname, __u8 uuid[16],
- __u64 kmlsize)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_GO_FETCH_KML, 0, NULL, fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- hdr->u_offset = kmlsize;
- memcpy(hdr->u_uuid, uuid, sizeof(hdr->u_uuid));
-
- error = izo_upc_upcall(minor, &size, hdr, ASYNCHRONOUS);
- if (error)
- CERROR("%s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
-
-int izo_upc_connect(int minor, __u64 ip_address, __u64 port, __u8 uuid[16],
- int client_flag)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_CONNECT, 0, NULL, NULL, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- hdr->u_offset = ip_address;
- hdr->u_length = port;
- memcpy(hdr->u_uuid, uuid, sizeof(hdr->u_uuid));
- hdr->u_first_recno = client_flag;
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error) {
- CERROR("%s: error %d\n", __FUNCTION__, error);
- }
-
- EXIT;
- return -error;
-}
-
-int izo_upc_set_kmlsize(int minor, char *fsetname, __u8 uuid[16], __u64 kmlsize)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_SET_KMLSIZE, 0, NULL, fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- memcpy(hdr->u_uuid, uuid, sizeof(hdr->u_uuid));
- hdr->u_length = kmlsize;
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("%s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
-
-int izo_upc_repstatus(int minor, char * fsetname, struct izo_rcvd_rec *lr_server)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_REPSTATUS, 0, NULL, fsetname,
- sizeof(*lr_server), (char*)lr_server,
- &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("%s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
-
-
-#if 0
-int izo_upc_client_make_branch(int minor, char *fsetname, char *tagname,
- char *branchname)
-{
- int size, error;
- struct izo_upcall_hdr *hdr;
- int pathlen;
- char *path;
- ENTRY;
-
- hdr = upc_pack(IZO_UPC_CLIENT_MAKE_BRANCH, strlen(tagname), tagname,
- fsetname, strlen(branchname) + 1, branchname, &size);
- if (!hdr || IS_ERR(hdr)) {
- error = -PTR_ERR(hdr);
- goto error;
- }
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("InterMezzo: error %d\n", error);
-
- error:
- PRESTO_FREE(path, pathlen);
- EXIT;
- return error;
-}
-#endif
-
-int izo_upc_server_make_branch(int minor, char *fsetname)
-{
- int size, error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- hdr = upc_pack(IZO_UPC_SERVER_MAKE_BRANCH, 0, NULL, fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- error = -PTR_ERR(hdr);
- goto error;
- }
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("InterMezzo: error %d\n", error);
-
- error:
- EXIT;
- return -error;
-}
-
-int izo_upc_branch_undo(int minor, char *fsetname, char *branchname)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_BRANCH_UNDO, strlen(branchname), branchname,
- fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
-
-int izo_upc_branch_redo(int minor, char *fsetname, char *branchname)
-{
- int size;
- int error;
- struct izo_upcall_hdr *hdr;
- ENTRY;
-
- if (!presto_lento_up(minor)) {
- EXIT;
- return -EIO;
- }
-
- hdr = upc_pack(IZO_UPC_BRANCH_REDO, strlen(branchname) + 1, branchname,
- fsetname, 0, NULL, &size);
- if (!hdr || IS_ERR(hdr)) {
- EXIT;
- return -PTR_ERR(hdr);
- }
-
- error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
- if (error)
- CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
-
- EXIT;
- return -error;
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- * Copyright (C) 2000 Stelias Computing, Inc.
- * Copyright (C) 2000 Red Hat, Inc.
- *
- * This file is part of InterMezzo, http://www.inter-mezzo.org.
- *
- * InterMezzo is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * InterMezzo is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with InterMezzo; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * vfs.c
- *
- * This file implements kernel downcalls from lento.
- *
- * Author: Rob Simmonds <simmonds@stelias.com>
- * Andreas Dilger <adilger@stelias.com>
- * Copyright (C) 2000 Stelias Computing Inc
- * Copyright (C) 2000 Red Hat Inc.
- *
- * Extended attribute support
- * Copyright (C) 2001 Shirish H. Phatak, Tacit Networks, Inc.
- *
- * This code is based on code from namei.c in the linux file system;
- * see copyright notice below.
- */
-
-/** namei.c copyright **/
-
-/*
- * linux/fs/namei.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- */
-/*
- * Some corrections by tytso.
- */
-
-/* [Feb 1997 T. Schoebel-Theuer] Complete rewrite of the pathname
- * lookup logic.
- */
-
-/** end of namei.c copyright **/
-
-#include <linux/mm.h>
-#include <linux/proc_fs.h>
-#include <linux/quotaops.h>
-
-#include <asm/uaccess.h>
-#include <asm/unaligned.h>
-#include <asm/semaphore.h>
-#include <asm/pgtable.h>
-
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/namei.h>
-#include <linux/genhd.h>
-
-#include "intermezzo_fs.h"
-#include "intermezzo_psdev.h"
-
-#ifdef CONFIG_FS_EXT_ATTR
-# include <linux/ext_attr.h>
-
-# if 0 /* was a broken check for Posix ACLs */
-# include <linux/posix_acl.h>
-# endif
-#endif
-
-extern struct inode_operations presto_sym_iops;
-
-/* Write the last_rcvd values to the last_rcvd file. We don't know what the
- * UUID or last_ctime values are, so we have to read from the file first
- * (sigh).
- * exported for branch_reinter in kml_reint.c*/
-int presto_write_last_rcvd(struct rec_info *recinfo,
- struct presto_file_set *fset,
- struct lento_vfs_context *info)
-{
- int rc;
- struct izo_rcvd_rec rcvd_rec;
-
- ENTRY;
-
- memset(&rcvd_rec, 0, sizeof(rcvd_rec));
- memcpy(rcvd_rec.lr_uuid, info->uuid, sizeof(rcvd_rec.lr_uuid));
- rcvd_rec.lr_remote_recno = HTON__u64(info->recno);
- rcvd_rec.lr_remote_offset = HTON__u64(info->kml_offset);
- rcvd_rec.lr_local_recno = HTON__u64(recinfo->recno);
- rcvd_rec.lr_local_offset = HTON__u64(recinfo->offset + recinfo->size);
-
- rc = izo_rcvd_write(fset, &rcvd_rec);
- if (rc < 0) {
- /* izo_rcvd_write returns negative errors and non-negative
- * offsets */
- CERROR("InterMezzo: izo_rcvd_write failed: %d\n", rc);
- EXIT;
- return rc;
- }
- EXIT;
- return 0;
-}
-
-/*
- * It's inline, so penalty for filesystems that don't use sticky bit is
- * minimal.
- */
-static inline int check_sticky(struct inode *dir, struct inode *inode)
-{
- if (!(dir->i_mode & S_ISVTX))
- return 0;
- if (inode->i_uid == current->fsuid)
- return 0;
- if (dir->i_uid == current->fsuid)
- return 0;
- return !capable(CAP_FOWNER);
-}
-
-/* from linux/fs/namei.c */
-static inline int may_delete(struct inode *dir,struct dentry *victim, int isdir)
-{
- int error;
- if (!victim->d_inode || victim->d_parent->d_inode != dir)
- return -ENOENT;
- error = permission(dir,MAY_WRITE | MAY_EXEC, NULL);
- if (error)
- return error;
- if (IS_APPEND(dir))
- return -EPERM;
- if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
- IS_IMMUTABLE(victim->d_inode))
- return -EPERM;
- if (isdir) {
- if (!S_ISDIR(victim->d_inode->i_mode))
- return -ENOTDIR;
- if (IS_ROOT(victim))
- return -EBUSY;
- } else if (S_ISDIR(victim->d_inode->i_mode))
- return -EISDIR;
- return 0;
-}
-
-/* from linux/fs/namei.c */
-static inline int may_create(struct inode *dir, struct dentry *child) {
- if (child->d_inode)
- return -EEXIST;
- if (IS_DEADDIR(dir))
- return -ENOENT;
- return permission(dir,MAY_WRITE | MAY_EXEC, NULL);
-}
-
-#ifdef PRESTO_DEBUG
-/* The loop_discard_io() function is available via a kernel patch to the
- * loop block device. It "works" by accepting writes, but throwing them
- * away, rather than trying to write them to disk. The old method worked
- * by setting the underlying device read-only, but that has the problem
- * that dirty buffers are kept in memory, and ext3 didn't like that at all.
- */
-#ifdef CONFIG_LOOP_DISCARD
-#define BLKDEV_FAIL(dev,fail) loop_discard_io(dev,fail)
-#else
-#define BLKDEV_FAIL(dev,fail) set_device_ro(dev, 1)
-#endif
-
-/* If a breakpoint has been set via /proc/sys/intermezzo/intermezzoX/errorval,
- * that is the same as "value", the underlying device will "fail" now.
- */
-inline void presto_debug_fail_blkdev(struct presto_file_set *fset,
- unsigned long value)
-{
- int minor = presto_f2m(fset);
- int errorval = izo_channels[minor].uc_errorval;
- struct block_device *bdev = fset->fset_dentry->d_inode->i_sb->s_bdev;
- char b[BDEVNAME_SIZE];
-
- if (errorval && errorval == (long)value && !bdev_read_only(bdev)) {
- CDEBUG(D_SUPER, "setting device %s read only\n",
- bdevname(bdev, b));
- BLKDEV_FAIL(bdev, 1);
- izo_channels[minor].uc_errorval = -bdev->bd_dev;
- }
-}
-#else
-#define presto_debug_fail_blkdev(dev,value) do {} while (0)
-#endif
-
-
-static inline int presto_do_kml(struct lento_vfs_context *info,
- struct dentry *dentry)
-{
- if ( ! (info->flags & LENTO_FL_KML) )
- return 0;
- if ( presto_chk(dentry, PRESTO_DONT_JOURNAL) )
- return 0;
- return 1;
-}
-
-static inline int presto_do_rcvd(struct lento_vfs_context *info,
- struct dentry *dentry)
-{
- if ( ! (info->flags & LENTO_FL_EXPECT) )
- return 0;
- if ( presto_chk(dentry, PRESTO_DONT_JOURNAL) )
- return 0;
- return 1;
-}
-
-
-/* XXX fixme: this should not fail, all these dentries are in memory
- when _we_ call this */
-int presto_settime(struct presto_file_set *fset,
- struct dentry *newobj,
- struct dentry *parent,
- struct dentry *target,
- struct lento_vfs_context *ctx,
- int valid)
-{
- int error = 0;
- struct dentry *dentry;
- struct inode *inode;
- struct inode_operations *iops;
- struct iattr iattr;
-
- ENTRY;
- if (ctx->flags & LENTO_FL_IGNORE_TIME ) {
- EXIT;
- return 0;
- }
-
- iattr.ia_ctime = ctx->updated_time;
- iattr.ia_mtime = ctx->updated_time;
- iattr.ia_valid = valid;
-
- while (1) {
- if (parent && ctx->flags & LENTO_FL_TOUCH_PARENT) {
- dentry = parent;
- parent = NULL;
- } else if (newobj && ctx->flags & LENTO_FL_TOUCH_NEWOBJ) {
- dentry = newobj;
- newobj = NULL;
- } else if (target) {
- dentry = target;
- target = NULL;
- } else
- break;
-
- inode = dentry->d_inode;
-
- error = -EROFS;
- if (IS_RDONLY(inode)) {
- EXIT;
- return -EROFS;
- }
-
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
- EXIT;
- return -EPERM;
- }
-
- error = -EPERM;
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- if (!iops) {
- EXIT;
- return error;
- }
-
- if (iops->setattr != NULL)
- error = iops->setattr(dentry, &iattr);
- else {
- error = 0;
- inode_setattr(dentry->d_inode, &iattr);
- }
- }
- EXIT;
- return error;
-}
-
-void izo_get_rollback_data(struct inode *inode, struct izo_rollback_data *rb)
-{
- rb->rb_mode = (__u32)inode->i_mode;
- rb->rb_rdev = (__u32)old_encode_dev(inode->i_rdev);
- rb->rb_uid = (__u64)inode->i_uid;
- rb->rb_gid = (__u64)inode->i_gid;
-}
-
-
-int presto_do_close(struct presto_file_set *fset, struct file *file)
-{
- struct rec_info rec;
- int rc = -ENOSPC;
- void *handle;
- struct inode *inode = file->f_dentry->d_inode;
- struct presto_file_data *fdata =
- (struct presto_file_data *)file->private_data;
-
- ENTRY;
- presto_getversion(&fdata->fd_info.remote_version, inode);
-
- rc = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH);
- if (rc) {
- EXIT;
- return rc;
- }
-
- handle = presto_trans_start(fset, file->f_dentry->d_inode,
- KML_OPCODE_RELEASE);
- if ( IS_ERR(handle) ) {
- CERROR("presto_release: no space for transaction\n");
- return rc;
- }
-
- if (fdata->fd_info.flags & LENTO_FL_KML)
- rc = presto_journal_close(&rec, fset, fdata, file->f_dentry,
- &fdata->fd_version,
- &fdata->fd_info.remote_version);
- if (rc) {
- CERROR("presto_close: cannot journal close\n");
- goto out;
- }
-
- if (fdata->fd_info.flags & LENTO_FL_EXPECT)
- rc = presto_write_last_rcvd(&rec, fset, &fdata->fd_info);
-
- if (rc) {
- CERROR("presto_close: cannot journal last_rcvd\n");
- goto out;
- }
- presto_trans_commit(fset, handle);
-
- /* cancel the LML record */
- handle = presto_trans_start(fset, inode, KML_OPCODE_WRITE);
- if ( IS_ERR(handle) ) {
- CERROR("presto_release: no space for clear\n");
- return -ENOSPC;
- }
-
- rc = presto_clear_lml_close(fset, fdata->fd_lml_offset);
- if (rc < 0 ) {
- CERROR("presto_close: cannot journal close\n");
- goto out;
- }
- presto_truncate_lml(fset);
-
- out:
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- presto_trans_commit(fset, handle);
- EXIT;
- return rc;
-}
-
-int presto_do_setattr(struct presto_file_set *fset, struct dentry *dentry,
- struct iattr *iattr, struct lento_vfs_context *info)
-{
- struct rec_info rec;
- struct inode *inode = dentry->d_inode;
- struct inode_operations *iops;
- int error;
- struct presto_version old_ver, new_ver;
- struct izo_rollback_data rb;
- void *handle;
- loff_t old_size=inode->i_size;
-
- ENTRY;
- error = -EROFS;
- if (IS_RDONLY(inode)) {
- EXIT;
- return -EROFS;
- }
-
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
- EXIT;
- return -EPERM;
- }
-
- presto_getversion(&old_ver, dentry->d_inode);
- izo_get_rollback_data(dentry->d_inode, &rb);
- error = -EPERM;
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
-
- error = presto_reserve_space(fset->fset_cache, 2*PRESTO_REQHIGH);
- if (error) {
- EXIT;
- return error;
- }
-
- if (iattr->ia_valid & ATTR_SIZE) {
- if (izo_mark_dentry(dentry, ~PRESTO_DATA, 0, NULL) != 0)
- CERROR("izo_mark_dentry(inode %ld, ~PRESTO_DATA) "
- "failed\n", dentry->d_inode->i_ino);
- handle = presto_trans_start(fset, dentry->d_inode,
- KML_OPCODE_TRUNC);
- } else {
- handle = presto_trans_start(fset, dentry->d_inode,
- KML_OPCODE_SETATTR);
- }
-
- if ( IS_ERR(handle) ) {
- CERROR("presto_do_setattr: no space for transaction\n");
- presto_release_space(fset->fset_cache, 2*PRESTO_REQHIGH);
- return -ENOSPC;
- }
-
- if (dentry->d_inode && iops && iops->setattr) {
- error = iops->setattr(dentry, iattr);
- } else {
- error = inode_change_ok(dentry->d_inode, iattr);
- if (!error)
- inode_setattr(inode, iattr);
- }
-
- if (!error && (iattr->ia_valid & ATTR_SIZE))
- vmtruncate(inode, iattr->ia_size);
-
- if (error) {
- EXIT;
- goto exit;
- }
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SETATTR | 0x10);
-
- if ( presto_do_kml(info, dentry) ) {
- if ((iattr->ia_valid & ATTR_SIZE) && (old_size != inode->i_size)) {
- /* Journal a close whenever we see a potential truncate
- * At the receiving end, lento should explicitly remove
- * ATTR_SIZE from the list of valid attributes */
- presto_getversion(&new_ver, inode);
- error = presto_journal_close(&rec, fset, NULL, dentry,
- &old_ver, &new_ver);
- }
-
- if (!error)
- error = presto_journal_setattr(&rec, fset, dentry,
- &old_ver, &rb, iattr);
- }
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SETATTR | 0x20);
- if ( presto_do_rcvd(info, dentry) )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SETATTR | 0x30);
-
- EXIT;
-exit:
- presto_release_space(fset->fset_cache, 2*PRESTO_REQHIGH);
- presto_trans_commit(fset, handle);
- return error;
-}
-
-int lento_setattr(const char *name, struct iattr *iattr,
- struct lento_vfs_context *info)
-{
- struct nameidata nd;
- struct dentry *dentry;
- struct presto_file_set *fset;
- int error;
-#if 0 /* was a broken check for Posix ACLs */
- int (*set_posix_acl)(struct inode *, int type, posix_acl_t *)=NULL;
-#endif
-
- ENTRY;
- CDEBUG(D_PIOCTL,"name %s, valid %#x, mode %#o, uid %d, gid %d, size %Ld\n",
- name, iattr->ia_valid, iattr->ia_mode, iattr->ia_uid,
- iattr->ia_gid, iattr->ia_size);
- CDEBUG(D_PIOCTL, "atime %#lx, mtime %#lx, ctime %#lx, attr_flags %#x\n",
- iattr->ia_atime.tv_sec, iattr->ia_mtime.tv_sec, iattr->ia_ctime.tv_sec,
- iattr->ia_attr_flags);
- CDEBUG(D_PIOCTL, "offset %d, recno %d, flags %#x\n",
- info->slot_offset, info->recno, info->flags);
-
- lock_kernel();
- error = presto_walk(name, &nd);
- if (error) {
- EXIT;
- goto exit;
- }
- dentry = nd.dentry;
-
- fset = presto_fset(dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto exit_lock;
- }
-
- /* NOTE: this prevents us from changing the filetype on setattr,
- * as we normally only want to change permission bits.
- * If this is not correct, then we need to fix the perl code
- * to always send the file type OR'ed with the permission.
- */
- if (iattr->ia_valid & ATTR_MODE) {
- int set_mode = iattr->ia_mode;
- iattr->ia_mode = (iattr->ia_mode & S_IALLUGO) |
- (dentry->d_inode->i_mode & ~S_IALLUGO);
- CDEBUG(D_PIOCTL, "chmod: orig %#o, set %#o, result %#o\n",
- dentry->d_inode->i_mode, set_mode, iattr->ia_mode);
-#if 0 /* was a broken check for Posix ACLs */
- /* ACl code interacts badly with setattr
- * since it tries to modify the ACL using
- * set_ext_attr which recurses back into presto.
- * This only happens if ATTR_MODE is set.
- * Here we are doing a "forced" mode set
- * (initiated by lento), so we disable the
- * set_posix_acl operation which
- * prevents such recursion. -SHP
- *
- * This will probably still be required when native
- * acl journalling is in place.
- */
- set_posix_acl=dentry->d_inode->i_op->set_posix_acl;
- dentry->d_inode->i_op->set_posix_acl=NULL;
-#endif
- }
-
- error = presto_do_setattr(fset, dentry, iattr, info);
-
- if (info->flags & LENTO_FL_SET_DDFILEID) {
- struct presto_dentry_data *dd = presto_d2d(dentry);
- if (dd) {
- dd->remote_ino = info->remote_ino;
- dd->remote_generation = info->remote_generation;
- }
- }
-
-#if 0 /* was a broken check for Posix ACLs */
- /* restore the inode_operations if we changed them*/
- if (iattr->ia_valid & ATTR_MODE)
- dentry->d_inode->i_op->set_posix_acl=set_posix_acl;
-#endif
-
-
- EXIT;
-exit_lock:
- path_release(&nd);
-exit:
- unlock_kernel();
- return error;
-}
-
-int presto_do_create(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, int mode,
- struct lento_vfs_context *info)
-{
- struct rec_info rec;
- int error;
- struct presto_version tgt_dir_ver, new_file_ver;
- struct inode_operations *iops;
- void *handle;
-
- ENTRY;
- mode &= S_IALLUGO;
- mode |= S_IFREG;
-
- // down(&dir->d_inode->i_zombie);
- error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH);
- if (error) {
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return error;
- }
-
- error = may_create(dir->d_inode, dentry);
- if (error) {
- EXIT;
- goto exit_pre_lock;
- }
-
- error = -EPERM;
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- if (!iops->create) {
- EXIT;
- goto exit_pre_lock;
- }
-
- presto_getversion(&tgt_dir_ver, dir->d_inode);
- handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_CREATE);
- if ( IS_ERR(handle) ) {
- EXIT;
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- CERROR("presto_do_create: no space for transaction\n");
- error=-ENOSPC;
- goto exit_pre_lock;
- }
- DQUOT_INIT(dir->d_inode);
- lock_kernel();
- error = iops->create(dir->d_inode, dentry, mode, NULL);
- if (error) {
- EXIT;
- goto exit_lock;
- }
-
- if (dentry->d_inode) {
- struct presto_cache *cache = fset->fset_cache;
- /* was this already done? */
- presto_set_ops(dentry->d_inode, cache->cache_filter);
-
- filter_setup_dentry_ops(cache->cache_filter,
- dentry->d_op,
- &presto_dentry_ops);
- dentry->d_op = filter_c2udops(cache->cache_filter);
-
- /* if Lento creates this file, we won't have data */
- if ( ISLENTO(presto_c2m(cache)) ) {
- presto_set(dentry, PRESTO_ATTR);
- } else {
- presto_set(dentry, PRESTO_ATTR | PRESTO_DATA);
- }
- }
-
- info->flags |= LENTO_FL_TOUCH_PARENT;
- error = presto_settime(fset, NULL, dir, dentry,
- info, ATTR_CTIME | ATTR_MTIME);
- if (error) {
- EXIT;
- goto exit_lock;
- }
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_CREATE | 0x10);
-
- if ( presto_do_kml(info, dentry) ) {
- presto_getversion(&new_file_ver, dentry->d_inode);
- error = presto_journal_create(&rec, fset, dentry, &tgt_dir_ver,
- &new_file_ver,
- dentry->d_inode->i_mode);
- }
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_CREATE | 0x20);
-
- if ( presto_do_rcvd(info, dentry) )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_CREATE | 0x30);
-
- /* add inode dentry */
- if (fset->fset_cache->cache_filter->o_trops->tr_add_ilookup ) {
- struct dentry *d;
- d = fset->fset_cache->cache_filter->o_trops->tr_add_ilookup
- (dir->d_inode->i_sb->s_root, dentry);
- }
-
- EXIT;
-
- exit_lock:
- unlock_kernel();
- presto_trans_commit(fset, handle);
- exit_pre_lock:
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- // up(&dir->d_inode->i_zombie);
- return error;
-}
-
-int lento_create(const char *name, int mode, struct lento_vfs_context *info)
-{
- int error;
- struct nameidata nd;
- char * pathname;
- struct dentry *dentry;
- struct presto_file_set *fset;
-
- ENTRY;
- pathname = getname(name);
- error = PTR_ERR(pathname);
- if (IS_ERR(pathname)) {
- EXIT;
- goto exit;
- }
-
- /* this looks up the parent */
- error = path_lookup(pathname, LOOKUP_PARENT, &nd);
- if (error) {
- EXIT;
- goto exit;
- }
- dentry = lookup_create(&nd, 0);
- error = PTR_ERR(dentry);
- if (IS_ERR(dentry)) {
- EXIT;
- goto exit_lock;
- }
-
- fset = presto_fset(dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto exit_lock;
- }
- error = presto_do_create(fset, dentry->d_parent, dentry, (mode&S_IALLUGO)|S_IFREG,
- info);
-
- EXIT;
-
- exit_lock:
- path_release (&nd);
- dput(dentry);
- up(&dentry->d_parent->d_inode->i_sem);
- putname(pathname);
-exit:
- return error;
-}
-
-int presto_do_link(struct presto_file_set *fset, struct dentry *old_dentry,
- struct dentry *dir, struct dentry *new_dentry,
- struct lento_vfs_context *info)
-{
- struct rec_info rec;
- struct inode *inode;
- int error;
- struct inode_operations *iops;
- struct presto_version tgt_dir_ver;
- struct presto_version new_link_ver;
- void *handle;
-
- // down(&dir->d_inode->i_zombie);
- error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH);
- if (error) {
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return error;
- }
- error = -ENOENT;
- inode = old_dentry->d_inode;
- if (!inode)
- goto exit_lock;
-
- error = may_create(dir->d_inode, new_dentry);
- if (error)
- goto exit_lock;
-
- error = -EXDEV;
- if (dir->d_inode->i_sb != inode->i_sb)
- goto exit_lock;
-
- /*
- * A link to an append-only or immutable file cannot be created.
- */
- error = -EPERM;
- if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) {
- EXIT;
- goto exit_lock;
- }
-
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- if (!iops->link) {
- EXIT;
- goto exit_lock;
- }
-
-
- presto_getversion(&tgt_dir_ver, dir->d_inode);
- handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_LINK);
- if ( IS_ERR(handle) ) {
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- CERROR("presto_do_link: no space for transaction\n");
- return -ENOSPC;
- }
-
- DQUOT_INIT(dir->d_inode);
- lock_kernel();
- error = iops->link(old_dentry, dir->d_inode, new_dentry);
- unlock_kernel();
- if (error) {
- EXIT;
- goto exit_lock;
- }
-
- /* link dd data to that of existing dentry */
- old_dentry->d_op->d_release(new_dentry);
- if (!presto_d2d(old_dentry))
- BUG();
- presto_d2d(old_dentry)->dd_count++;
-
- new_dentry->d_fsdata = presto_d2d(old_dentry);
-
- info->flags |= LENTO_FL_TOUCH_PARENT;
- error = presto_settime(fset, NULL, dir, new_dentry,
- info, ATTR_CTIME);
- if (error) {
- EXIT;
- goto exit_lock;
- }
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_LINK | 0x10);
- presto_getversion(&new_link_ver, new_dentry->d_inode);
- if ( presto_do_kml(info, old_dentry) )
- error = presto_journal_link(&rec, fset, old_dentry, new_dentry,
- &tgt_dir_ver, &new_link_ver);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_LINK | 0x20);
- if ( presto_do_rcvd(info, old_dentry) )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_LINK | 0x30);
- EXIT;
- presto_trans_commit(fset, handle);
-exit_lock:
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- // up(&dir->d_inode->i_zombie);
- return error;
-}
-
-
-int lento_link(const char * oldname, const char * newname,
- struct lento_vfs_context *info)
-{
- int error;
- char * to;
- struct presto_file_set *fset;
-
- to = getname(newname);
- error = PTR_ERR(to);
- if (!IS_ERR(to)) {
- struct dentry *new_dentry;
- struct nameidata nd, old_nd;
-
- error = __user_walk(oldname, 0, &old_nd);
- if (error)
- goto exit;
- error = path_lookup(to, LOOKUP_PARENT, &nd);
- if (error)
- goto out;
- error = -EXDEV;
- if (old_nd.mnt != nd.mnt)
- goto out;
- new_dentry = lookup_create(&nd, 0);
- error = PTR_ERR(new_dentry);
-
- if (!IS_ERR(new_dentry)) {
- fset = presto_fset(new_dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto out2;
- }
- error = presto_do_link(fset, old_nd.dentry,
- nd.dentry,
- new_dentry, info);
- dput(new_dentry);
- }
- out2:
- up(&nd.dentry->d_inode->i_sem);
- path_release(&nd);
- out:
- path_release(&old_nd);
- exit:
- putname(to);
- }
- return error;
-}
-
-int presto_do_unlink(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, struct lento_vfs_context *info)
-{
- struct rec_info rec;
- struct inode_operations *iops;
- struct presto_version tgt_dir_ver, old_file_ver;
- struct izo_rollback_data rb;
- void *handle;
- int do_kml = 0, do_rcvd = 0, linkno = 0, error, old_targetlen = 0;
- char *old_target = NULL;
-
- ENTRY;
- // down(&dir->d_inode->i_zombie);
- error = may_delete(dir->d_inode, dentry, 0);
- if (error) {
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return error;
- }
-
- error = -EPERM;
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- if (!iops->unlink) {
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return error;
- }
-
- error = presto_reserve_space(fset->fset_cache, PRESTO_REQLOW);
- if (error) {
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return error;
- }
-
-
- if (presto_d2d(dentry)) {
- struct presto_dentry_data *dd = presto_d2d(dentry);
- struct dentry *de = dd->dd_inodentry;
- if (de && dentry->d_inode->i_nlink == 1) {
- dd->dd_count--;
- dd->dd_inodentry = NULL;
- de->d_fsdata = NULL;
- atomic_dec(&de->d_inode->i_count);
- de->d_inode = NULL;
- dput(de);
- }
- }
-
- presto_getversion(&tgt_dir_ver, dir->d_inode);
- presto_getversion(&old_file_ver, dentry->d_inode);
- izo_get_rollback_data(dentry->d_inode, &rb);
- handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_UNLINK);
- if ( IS_ERR(handle) ) {
- presto_release_space(fset->fset_cache, PRESTO_REQLOW);
- CERROR("ERROR: presto_do_unlink: no space for transaction. Tell Peter.\n");
- // up(&dir->d_inode->i_zombie);
- return -ENOSPC;
- }
- DQUOT_INIT(dir->d_inode);
- if (d_mountpoint(dentry))
- error = -EBUSY;
- else {
- lock_kernel();
- linkno = dentry->d_inode->i_nlink;
- if (linkno > 1) {
- dget(dentry);
- }
-
- if (S_ISLNK(dentry->d_inode->i_mode)) {
- mm_segment_t old_fs;
- struct inode_operations *riops;
- riops = filter_c2csiops(fset->fset_cache->cache_filter);
-
- PRESTO_ALLOC(old_target, PATH_MAX);
- if (old_target == NULL) {
- error = -ENOMEM;
- EXIT;
- goto exit;
- }
-
- old_fs = get_fs();
- set_fs(get_ds());
-
- if (riops->readlink == NULL)
- CERROR("InterMezzo %s: no readlink iops.\n",
- __FUNCTION__);
- else
- old_targetlen =
- riops->readlink(dentry, old_target,
- PATH_MAX);
- if (old_targetlen < 0) {
- CERROR("InterMezzo: readlink failed: %ld\n",
- PTR_ERR(old_target));
- PRESTO_FREE(old_target, PATH_MAX);
- old_target = NULL;
- old_targetlen = 0;
- }
- set_fs(old_fs);
- }
-
- do_kml = presto_do_kml(info, dir);
- do_rcvd = presto_do_rcvd(info, dir);
- error = iops->unlink(dir->d_inode, dentry);
- unlock_kernel();
- }
-
- if (linkno > 1) {
- /* FIXME: Combine this with the next call? */
- error = presto_settime(fset, NULL, NULL, dentry,
- info, ATTR_CTIME);
- dput(dentry);
- if (error) {
- EXIT;
- goto exit;
- }
- }
-
- error = presto_settime(fset, NULL, NULL, dir,
- info, ATTR_CTIME | ATTR_MTIME);
- if (error) {
- EXIT;
- goto exit;
- }
-
- // up(&dir->d_inode->i_zombie);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_UNLINK | 0x10);
- if ( do_kml )
- error = presto_journal_unlink(&rec, fset, dir, &tgt_dir_ver,
- &old_file_ver, &rb, dentry,
- old_target, old_targetlen);
- presto_debug_fail_blkdev(fset, KML_OPCODE_UNLINK | 0x20);
- if ( do_rcvd ) {
- error = presto_write_last_rcvd(&rec, fset, info);
- }
- presto_debug_fail_blkdev(fset, KML_OPCODE_UNLINK | 0x30);
- EXIT;
-exit:
- presto_release_space(fset->fset_cache, PRESTO_REQLOW);
- presto_trans_commit(fset, handle);
- if (old_target != NULL)
- PRESTO_FREE(old_target, PATH_MAX);
- return error;
-}
-
-
-int lento_unlink(const char *pathname, struct lento_vfs_context *info)
-{
- int error = 0;
- char * name;
- struct dentry *dentry;
- struct nameidata nd;
- struct presto_file_set *fset;
-
- ENTRY;
-
- name = getname(pathname);
- if(IS_ERR(name))
- return PTR_ERR(name);
-
- error = path_lookup(name, LOOKUP_PARENT, &nd);
- if (error)
- goto exit;
- error = -EISDIR;
- if (nd.last_type != LAST_NORM)
- goto exit1;
- down(&nd.dentry->d_inode->i_sem);
- dentry = lookup_hash(&nd.last, nd.dentry);
- error = PTR_ERR(dentry);
- if (!IS_ERR(dentry)) {
- fset = presto_fset(dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto exit2;
- }
- /* Why not before? Because we want correct error value */
- if (nd.last.name[nd.last.len])
- goto slashes;
- error = presto_do_unlink(fset, nd.dentry, dentry, info);
- if (!error)
- d_delete(dentry);
- exit2:
- EXIT;
- dput(dentry);
- }
- up(&nd.dentry->d_inode->i_sem);
-exit1:
- path_release(&nd);
-exit:
- putname(name);
-
- return error;
-
-slashes:
- error = !dentry->d_inode ? -ENOENT :
- S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR;
- goto exit2;
-}
-
-int presto_do_symlink(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, const char *oldname,
- struct lento_vfs_context *info)
-{
- struct rec_info rec;
- int error;
- struct presto_version tgt_dir_ver, new_link_ver;
- struct inode_operations *iops;
- void *handle;
-
- ENTRY;
- // down(&dir->d_inode->i_zombie);
- /* record + max path len + space to free */
- error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH + 4096);
- if (error) {
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return error;
- }
-
- error = may_create(dir->d_inode, dentry);
- if (error) {
- EXIT;
- goto exit_lock;
- }
-
- error = -EPERM;
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- if (!iops->symlink) {
- EXIT;
- goto exit_lock;
- }
-
- presto_getversion(&tgt_dir_ver, dir->d_inode);
- handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_SYMLINK);
- if ( IS_ERR(handle) ) {
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH + 4096);
- CERROR("ERROR: presto_do_symlink: no space for transaction. Tell Peter.\n");
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return -ENOSPC;
- }
- DQUOT_INIT(dir->d_inode);
- lock_kernel();
- error = iops->symlink(dir->d_inode, dentry, oldname);
- if (error) {
- EXIT;
- goto exit;
- }
-
- if (dentry->d_inode) {
- struct presto_cache *cache = fset->fset_cache;
-
- presto_set_ops(dentry->d_inode, cache->cache_filter);
-
- filter_setup_dentry_ops(cache->cache_filter, dentry->d_op,
- &presto_dentry_ops);
- dentry->d_op = filter_c2udops(cache->cache_filter);
- /* XXX ? Cache state ? if Lento creates a symlink */
- if ( ISLENTO(presto_c2m(cache)) ) {
- presto_set(dentry, PRESTO_ATTR);
- } else {
- presto_set(dentry, PRESTO_ATTR | PRESTO_DATA);
- }
- }
-
- info->flags |= LENTO_FL_TOUCH_PARENT;
- error = presto_settime(fset, NULL, dir, dentry,
- info, ATTR_CTIME | ATTR_MTIME);
- if (error) {
- EXIT;
- goto exit;
- }
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SYMLINK | 0x10);
- presto_getversion(&new_link_ver, dentry->d_inode);
- if ( presto_do_kml(info, dentry) )
- error = presto_journal_symlink(&rec, fset, dentry, oldname,
- &tgt_dir_ver, &new_link_ver);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SYMLINK | 0x20);
- if ( presto_do_rcvd(info, dentry) )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SYMLINK | 0x30);
- EXIT;
-exit:
- unlock_kernel();
- presto_trans_commit(fset, handle);
- exit_lock:
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH + 4096);
- // up(&dir->d_inode->i_zombie);
- return error;
-}
-
-int lento_symlink(const char *oldname, const char *newname,
- struct lento_vfs_context *info)
-{
- int error;
- char *from;
- char *to;
- struct dentry *dentry;
- struct presto_file_set *fset;
- struct nameidata nd;
-
- ENTRY;
- lock_kernel();
- from = getname(oldname);
- error = PTR_ERR(from);
- if (IS_ERR(from)) {
- EXIT;
- goto exit;
- }
-
- to = getname(newname);
- error = PTR_ERR(to);
- if (IS_ERR(to)) {
- EXIT;
- goto exit_from;
- }
-
- error = path_lookup(to, LOOKUP_PARENT, &nd);
- if (error) {
- EXIT;
- goto exit_to;
- }
-
- dentry = lookup_create(&nd, 0);
- error = PTR_ERR(dentry);
- if (IS_ERR(dentry)) {
- path_release(&nd);
- EXIT;
- goto exit_to;
- }
-
- fset = presto_fset(dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- path_release(&nd);
- EXIT;
- goto exit_lock;
- }
- error = presto_do_symlink(fset, nd.dentry,
- dentry, from, info);
- path_release(&nd);
- EXIT;
- exit_lock:
- up(&nd.dentry->d_inode->i_sem);
- dput(dentry);
- exit_to:
- putname(to);
- exit_from:
- putname(from);
- exit:
- unlock_kernel();
- return error;
-}
-
-int presto_do_mkdir(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, int mode,
- struct lento_vfs_context *info)
-{
- struct rec_info rec;
- int error;
- struct presto_version tgt_dir_ver, new_dir_ver;
- void *handle;
-
- ENTRY;
- // down(&dir->d_inode->i_zombie);
-
- /* one journal record + directory block + room for removals*/
- error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH + 4096);
- if (error) {
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return error;
- }
-
- error = may_create(dir->d_inode, dentry);
- if (error) {
- EXIT;
- goto exit_lock;
- }
-
- error = -EPERM;
- if (!filter_c2cdiops(fset->fset_cache->cache_filter)->mkdir) {
- EXIT;
- goto exit_lock;
- }
-
- error = -ENOSPC;
- presto_getversion(&tgt_dir_ver, dir->d_inode);
- handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_MKDIR);
- if ( IS_ERR(handle) ) {
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH + 4096);
- CERROR("presto_do_mkdir: no space for transaction\n");
- goto exit_lock;
- }
-
- DQUOT_INIT(dir->d_inode);
- mode &= (S_IRWXUGO|S_ISVTX);
- lock_kernel();
- error = filter_c2cdiops(fset->fset_cache->cache_filter)->mkdir(dir->d_inode, dentry, mode);
- if (error) {
- EXIT;
- goto exit;
- }
-
- if ( dentry->d_inode && !error) {
- struct presto_cache *cache = fset->fset_cache;
-
- presto_set_ops(dentry->d_inode, cache->cache_filter);
-
- filter_setup_dentry_ops(cache->cache_filter,
- dentry->d_op,
- &presto_dentry_ops);
- dentry->d_op = filter_c2udops(cache->cache_filter);
- /* if Lento does this, we won't have data */
- if ( ISLENTO(presto_c2m(cache)) ) {
- presto_set(dentry, PRESTO_ATTR);
- } else {
- presto_set(dentry, PRESTO_ATTR | PRESTO_DATA);
- }
- }
-
- info->flags |= LENTO_FL_TOUCH_PARENT;
- error = presto_settime(fset, NULL, dir, dentry,
- info, ATTR_CTIME | ATTR_MTIME);
- if (error) {
- EXIT;
- goto exit;
- }
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_MKDIR | 0x10);
- presto_getversion(&new_dir_ver, dentry->d_inode);
- if ( presto_do_kml(info, dir) )
- error = presto_journal_mkdir(&rec, fset, dentry, &tgt_dir_ver,
- &new_dir_ver,
- dentry->d_inode->i_mode);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_MKDIR | 0x20);
- if ( presto_do_rcvd(info, dentry) )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_MKDIR | 0x30);
- EXIT;
-exit:
- unlock_kernel();
- presto_trans_commit(fset, handle);
- exit_lock:
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH + 4096);
- // up(&dir->d_inode->i_zombie);
- return error;
-}
-
-/*
- * Look out: this function may change a normal dentry
- * into a directory dentry (different size)..
- */
-int lento_mkdir(const char *name, int mode, struct lento_vfs_context *info)
-{
- int error;
- char *pathname;
- struct dentry *dentry;
- struct presto_file_set *fset;
- struct nameidata nd;
-
- ENTRY;
- CDEBUG(D_PIOCTL, "name: %s, mode %o, offset %d, recno %d, flags %x\n",
- name, mode, info->slot_offset, info->recno, info->flags);
- pathname = getname(name);
- error = PTR_ERR(pathname);
- if (IS_ERR(pathname)) {
- EXIT;
- return error;
- }
-
- error = path_lookup(pathname, LOOKUP_PARENT, &nd);
- if (error)
- goto out_name;
-
- dentry = lookup_create(&nd, 1);
- error = PTR_ERR(dentry);
- if (!IS_ERR(dentry)) {
- fset = presto_fset(dentry);
- error = -EINVAL;
- if (!fset) {
- CERROR("No fileset!\n");
- EXIT;
- goto out_dput;
- }
-
- error = presto_do_mkdir(fset, nd.dentry, dentry,
- mode & S_IALLUGO, info);
-out_dput:
- dput(dentry);
- }
- up(&nd.dentry->d_inode->i_sem);
- path_release(&nd);
-out_name:
- EXIT;
- putname(pathname);
- CDEBUG(D_PIOCTL, "error: %d\n", error);
- return error;
-}
-
-static void d_unhash(struct dentry *dentry)
-{
- dget(dentry);
- switch (atomic_read(&dentry->d_count)) {
- default:
- shrink_dcache_parent(dentry);
- if (atomic_read(&dentry->d_count) != 2)
- break;
- case 2:
- d_drop(dentry);
- }
-}
-
-int presto_do_rmdir(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, struct lento_vfs_context *info)
-{
- struct rec_info rec;
- int error;
- struct presto_version tgt_dir_ver, old_dir_ver;
- struct izo_rollback_data rb;
- struct inode_operations *iops;
- void *handle;
- int do_kml, do_rcvd;
- int size;
-
- ENTRY;
- error = may_delete(dir->d_inode, dentry, 1);
- if (error)
- return error;
-
- error = -EPERM;
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- if (!iops->rmdir) {
- EXIT;
- return error;
- }
-
- size = PRESTO_REQHIGH - dentry->d_inode->i_size;
- error = presto_reserve_space(fset->fset_cache, size);
- if (error) {
- EXIT;
- return error;
- }
-
- presto_getversion(&tgt_dir_ver, dir->d_inode);
- presto_getversion(&old_dir_ver, dentry->d_inode);
- izo_get_rollback_data(dentry->d_inode, &rb);
- handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_RMDIR);
- if ( IS_ERR(handle) ) {
- presto_release_space(fset->fset_cache, size);
- CERROR("ERROR: presto_do_rmdir: no space for transaction. Tell Peter.\n");
- return -ENOSPC;
- }
-
- DQUOT_INIT(dir->d_inode);
-
- do_kml = presto_do_kml(info, dir);
- do_rcvd = presto_do_rcvd(info, dir);
-
- // double_down(&dir->d_inode->i_zombie, &dentry->d_inode->i_zombie);
- d_unhash(dentry);
- if (IS_DEADDIR(dir->d_inode))
- error = -ENOENT;
- else if (d_mountpoint(dentry)) {
- CERROR("foo: d_mountpoint(dentry): ino %ld\n",
- dentry->d_inode->i_ino);
- error = -EBUSY;
- } else {
- lock_kernel();
- error = iops->rmdir(dir->d_inode, dentry);
- unlock_kernel();
- if (!error) {
- dentry->d_inode->i_flags |= S_DEAD;
- error = presto_settime(fset, NULL, NULL, dir, info,
- ATTR_CTIME | ATTR_MTIME);
- }
- }
- // double_up(&dir->d_inode->i_zombie, &dentry->d_inode->i_zombie);
- if (!error)
- d_delete(dentry);
- dput(dentry);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_RMDIR | 0x10);
- if ( !error && do_kml )
- error = presto_journal_rmdir(&rec, fset, dir, &tgt_dir_ver,
- &old_dir_ver, &rb,
- dentry->d_name.len,
- dentry->d_name.name);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_RMDIR | 0x20);
- if ( !error && do_rcvd )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_RMDIR | 0x30);
- EXIT;
-
- presto_trans_commit(fset, handle);
- presto_release_space(fset->fset_cache, size);
- return error;
-}
-
-int lento_rmdir(const char *pathname, struct lento_vfs_context *info)
-{
- int error = 0;
- char * name;
- struct dentry *dentry;
- struct presto_file_set *fset;
- struct nameidata nd;
-
- ENTRY;
- name = getname(pathname);
- if(IS_ERR(name)) {
- EXIT;
- return PTR_ERR(name);
- }
-
- error = path_lookup(name, LOOKUP_PARENT, &nd);
- if (error) {
- EXIT;
- goto exit;
- }
- switch(nd.last_type) {
- case LAST_DOTDOT:
- error = -ENOTEMPTY;
- EXIT;
- goto exit1;
- case LAST_ROOT:
- case LAST_DOT:
- error = -EBUSY;
- EXIT;
- goto exit1;
- }
- down(&nd.dentry->d_inode->i_sem);
- dentry = lookup_hash(&nd.last, nd.dentry);
- error = PTR_ERR(dentry);
- if (!IS_ERR(dentry)) {
- fset = presto_fset(dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto exit_put;
- }
- error = presto_do_rmdir(fset, nd.dentry, dentry, info);
- exit_put:
- dput(dentry);
- }
- up(&nd.dentry->d_inode->i_sem);
-exit1:
- path_release(&nd);
-exit:
- putname(name);
- EXIT;
- return error;
-}
-
-int presto_do_mknod(struct presto_file_set *fset, struct dentry *dir,
- struct dentry *dentry, int mode, dev_t dev,
- struct lento_vfs_context *info)
-{
- struct rec_info rec;
- int error = -EPERM;
- struct presto_version tgt_dir_ver, new_node_ver;
- struct inode_operations *iops;
- void *handle;
-
- ENTRY;
-
- // down(&dir->d_inode->i_zombie);
- /* one KML entry */
- error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH);
- if (error) {
- EXIT;
- // up(&dir->d_inode->i_zombie);
- return error;
- }
-
- if ((S_ISCHR(mode) || S_ISBLK(mode)) && !capable(CAP_MKNOD)) {
- EXIT;
- goto exit_lock;
- }
-
- error = may_create(dir->d_inode, dentry);
- if (error) {
- EXIT;
- goto exit_lock;
- }
-
- error = -EPERM;
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- if (!iops->mknod) {
- EXIT;
- goto exit_lock;
- }
-
- DQUOT_INIT(dir->d_inode);
- lock_kernel();
-
- error = -ENOSPC;
- presto_getversion(&tgt_dir_ver, dir->d_inode);
- handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_MKNOD);
- if ( IS_ERR(handle) ) {
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- CERROR("presto_do_mknod: no space for transaction\n");
- goto exit_lock2;
- }
-
- error = iops->mknod(dir->d_inode, dentry, mode, dev);
- if (error) {
- EXIT;
- goto exit_commit;
- }
- if ( dentry->d_inode) {
- struct presto_cache *cache = fset->fset_cache;
-
- presto_set_ops(dentry->d_inode, cache->cache_filter);
-
- filter_setup_dentry_ops(cache->cache_filter, dentry->d_op,
- &presto_dentry_ops);
- dentry->d_op = filter_c2udops(cache->cache_filter);
-
- /* if Lento does this, we won't have data */
- if ( ISLENTO(presto_c2m(cache)) ) {
- presto_set(dentry, PRESTO_ATTR);
- } else {
- presto_set(dentry, PRESTO_ATTR | PRESTO_DATA);
- }
- }
-
- error = presto_settime(fset, NULL, NULL, dir,
- info, ATTR_MTIME);
- if (error) {
- EXIT;
- }
- error = presto_settime(fset, NULL, NULL, dentry,
- info, ATTR_CTIME | ATTR_MTIME);
- if (error) {
- EXIT;
- }
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_MKNOD | 0x10);
- presto_getversion(&new_node_ver, dentry->d_inode);
- if ( presto_do_kml(info, dentry) )
- error = presto_journal_mknod(&rec, fset, dentry, &tgt_dir_ver,
- &new_node_ver,
- dentry->d_inode->i_mode,
- MAJOR(dev), MINOR(dev) );
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_MKNOD | 0x20);
- if ( presto_do_rcvd(info, dentry) )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_MKNOD | 0x30);
- EXIT;
- exit_commit:
- presto_trans_commit(fset, handle);
- exit_lock2:
- unlock_kernel();
- exit_lock:
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- // up(&dir->d_inode->i_zombie);
- return error;
-}
-
-int lento_mknod(const char *filename, int mode, dev_t dev,
- struct lento_vfs_context *info)
-{
- int error = 0;
- char * tmp;
- struct dentry * dentry;
- struct nameidata nd;
- struct presto_file_set *fset;
-
- ENTRY;
-
- if (S_ISDIR(mode))
- return -EPERM;
- tmp = getname(filename);
- if (IS_ERR(tmp))
- return PTR_ERR(tmp);
-
- error = path_lookup(tmp, LOOKUP_PARENT, &nd);
- if (error)
- goto out;
- dentry = lookup_create(&nd, 0);
- error = PTR_ERR(dentry);
- if (!IS_ERR(dentry)) {
- fset = presto_fset(dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto exit_put;
- }
- switch (mode & S_IFMT) {
- case 0: case S_IFREG:
- error = -EOPNOTSUPP;
- break;
- case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
- error = presto_do_mknod(fset, nd.dentry, dentry,
- mode, dev, info);
- break;
- case S_IFDIR:
- error = -EPERM;
- break;
- default:
- error = -EINVAL;
- }
- exit_put:
- dput(dentry);
- }
- up(&nd.dentry->d_inode->i_sem);
- path_release(&nd);
-out:
- putname(tmp);
-
- return error;
-}
-
-int do_rename(struct presto_file_set *fset,
- struct dentry *old_parent, struct dentry *old_dentry,
- struct dentry *new_parent, struct dentry *new_dentry,
- struct lento_vfs_context *info)
-{
- struct rec_info rec;
- int error;
- struct inode_operations *iops;
- struct presto_version src_dir_ver, tgt_dir_ver;
- void *handle;
- int new_inode_unlink = 0;
- struct inode *old_dir = old_parent->d_inode;
- struct inode *new_dir = new_parent->d_inode;
-
- ENTRY;
- presto_getversion(&src_dir_ver, old_dir);
- presto_getversion(&tgt_dir_ver, new_dir);
-
- error = -EPERM;
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- if (!iops || !iops->rename) {
- EXIT;
- return error;
- }
-
- error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH);
- if (error) {
- EXIT;
- return error;
- }
- handle = presto_trans_start(fset, old_dir, KML_OPCODE_RENAME);
- if ( IS_ERR(handle) ) {
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- CERROR("presto_do_rename: no space for transaction\n");
- return -ENOSPC;
- }
- if (new_dentry->d_inode && new_dentry->d_inode->i_nlink > 1) {
- dget(new_dentry);
- new_inode_unlink = 1;
- }
-
- error = iops->rename(old_dir, old_dentry, new_dir, new_dentry);
-
- if (error) {
- EXIT;
- goto exit;
- }
-
- if (new_inode_unlink) {
- error = presto_settime(fset, NULL, NULL, old_dentry,
- info, ATTR_CTIME);
- dput(old_dentry);
- if (error) {
- EXIT;
- goto exit;
- }
- }
- info->flags |= LENTO_FL_TOUCH_PARENT;
- error = presto_settime(fset, NULL, new_parent, old_parent,
- info, ATTR_CTIME | ATTR_MTIME);
- if (error) {
- EXIT;
- goto exit;
- }
-
- /* XXX make a distinction between cross file set
- * and intra file set renames here
- */
- presto_debug_fail_blkdev(fset, KML_OPCODE_RENAME | 0x10);
- if ( presto_do_kml(info, old_dentry) )
- error = presto_journal_rename(&rec, fset, old_dentry,
- new_dentry,
- &src_dir_ver, &tgt_dir_ver);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_RENAME | 0x20);
-
- if ( presto_do_rcvd(info, old_dentry) )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_RENAME | 0x30);
- EXIT;
-exit:
- presto_trans_commit(fset, handle);
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- return error;
-}
-
-static
-int presto_rename_dir(struct presto_file_set *fset, struct dentry *old_parent,
- struct dentry *old_dentry, struct dentry *new_parent,
- struct dentry *new_dentry, struct lento_vfs_context *info)
-{
- int error;
- struct inode *target;
- struct inode *old_dir = old_parent->d_inode;
- struct inode *new_dir = new_parent->d_inode;
-
- if (old_dentry->d_inode == new_dentry->d_inode)
- return 0;
-
- error = may_delete(old_dir, old_dentry, 1);
- if (error)
- return error;
-
- if (new_dir->i_sb != old_dir->i_sb)
- return -EXDEV;
-
- if (!new_dentry->d_inode)
- error = may_create(new_dir, new_dentry);
- else
- error = may_delete(new_dir, new_dentry, 1);
- if (error)
- return error;
-
- if (!old_dir->i_op || !old_dir->i_op->rename)
- return -EPERM;
-
- /*
- * If we are going to change the parent - check write permissions,
- * we'll need to flip '..'.
- */
- if (new_dir != old_dir) {
- error = permission(old_dentry->d_inode, MAY_WRITE, NULL);
- }
- if (error)
- return error;
-
- DQUOT_INIT(old_dir);
- DQUOT_INIT(new_dir);
- down(&old_dir->i_sb->s_vfs_rename_sem);
- error = -EINVAL;
- if (is_subdir(new_dentry, old_dentry))
- goto out_unlock;
- target = new_dentry->d_inode;
- if (target) { /* Hastur! Hastur! Hastur! */
- // triple_down(&old_dir->i_zombie,
- // &new_dir->i_zombie,
- // &target->i_zombie);
- d_unhash(new_dentry);
- } else
- // double_down(&old_dir->i_zombie,
- // &new_dir->i_zombie);
- if (IS_DEADDIR(old_dir)||IS_DEADDIR(new_dir))
- error = -ENOENT;
- else if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
- error = -EBUSY;
- else
- error = do_rename(fset, old_parent, old_dentry,
- new_parent, new_dentry, info);
- if (target) {
- if (!error)
- target->i_flags |= S_DEAD;
- // triple_up(&old_dir->i_zombie,
- // &new_dir->i_zombie,
- // &target->i_zombie);
- if (d_unhashed(new_dentry))
- d_rehash(new_dentry);
- dput(new_dentry);
- } else
- // double_up(&old_dir->i_zombie,
- // &new_dir->i_zombie);
-
- if (!error)
- d_move(old_dentry,new_dentry);
-out_unlock:
- up(&old_dir->i_sb->s_vfs_rename_sem);
- return error;
-}
-
-static
-int presto_rename_other(struct presto_file_set *fset, struct dentry *old_parent,
- struct dentry *old_dentry, struct dentry *new_parent,
- struct dentry *new_dentry, struct lento_vfs_context *info)
-{
- struct inode *old_dir = old_parent->d_inode;
- struct inode *new_dir = new_parent->d_inode;
- int error;
-
- if (old_dentry->d_inode == new_dentry->d_inode)
- return 0;
-
- error = may_delete(old_dir, old_dentry, 0);
- if (error)
- return error;
-
- if (new_dir->i_sb != old_dir->i_sb)
- return -EXDEV;
-
- if (!new_dentry->d_inode)
- error = may_create(new_dir, new_dentry);
- else
- error = may_delete(new_dir, new_dentry, 0);
- if (error)
- return error;
-
- if (!old_dir->i_op || !old_dir->i_op->rename)
- return -EPERM;
-
- DQUOT_INIT(old_dir);
- DQUOT_INIT(new_dir);
- // double_down(&old_dir->i_zombie, &new_dir->i_zombie);
- if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
- error = -EBUSY;
- else
- error = do_rename(fset, old_parent, old_dentry,
- new_parent, new_dentry, info);
- // double_up(&old_dir->i_zombie, &new_dir->i_zombie);
- if (error)
- return error;
- /* The following d_move() should become unconditional */
- if (!(old_dir->i_sb->s_type->fs_flags & FS_ODD_RENAME)) {
- d_move(old_dentry, new_dentry);
- }
- return 0;
-}
-
-int presto_do_rename(struct presto_file_set *fset,
- struct dentry *old_parent, struct dentry *old_dentry,
- struct dentry *new_parent, struct dentry *new_dentry,
- struct lento_vfs_context *info)
-{
- if (S_ISDIR(old_dentry->d_inode->i_mode))
- return presto_rename_dir(fset, old_parent,old_dentry,new_parent,
- new_dentry, info);
- else
- return presto_rename_other(fset, old_parent, old_dentry,
- new_parent,new_dentry, info);
-}
-
-
-int lento_do_rename(const char *oldname, const char *newname,
- struct lento_vfs_context *info)
-{
- int error = 0;
- struct dentry * old_dir, * new_dir;
- struct dentry * old_dentry, *new_dentry;
- struct nameidata oldnd, newnd;
- struct presto_file_set *fset;
-
- ENTRY;
-
- error = path_lookup(oldname, LOOKUP_PARENT, &oldnd);
- if (error)
- goto exit;
-
- error = path_lookup(newname, LOOKUP_PARENT, &newnd);
- if (error)
- goto exit1;
-
- error = -EXDEV;
- if (oldnd.mnt != newnd.mnt)
- goto exit2;
-
- old_dir = oldnd.dentry;
- error = -EBUSY;
- if (oldnd.last_type != LAST_NORM)
- goto exit2;
-
- new_dir = newnd.dentry;
- if (newnd.last_type != LAST_NORM)
- goto exit2;
-
- lock_rename(new_dir, old_dir);
-
- old_dentry = lookup_hash(&oldnd.last, old_dir);
- error = PTR_ERR(old_dentry);
- if (IS_ERR(old_dentry))
- goto exit3;
- /* source must exist */
- error = -ENOENT;
- if (!old_dentry->d_inode)
- goto exit4;
- fset = presto_fset(old_dentry);
- error = -EINVAL;
- if ( !fset ) {
- CERROR("No fileset!\n");
- EXIT;
- goto exit4;
- }
- /* unless the source is a directory trailing slashes give -ENOTDIR */
- if (!S_ISDIR(old_dentry->d_inode->i_mode)) {
- error = -ENOTDIR;
- if (oldnd.last.name[oldnd.last.len])
- goto exit4;
- if (newnd.last.name[newnd.last.len])
- goto exit4;
- }
- new_dentry = lookup_hash(&newnd.last, new_dir);
- error = PTR_ERR(new_dentry);
- if (IS_ERR(new_dentry))
- goto exit4;
-
- lock_kernel();
- error = presto_do_rename(fset, old_dir, old_dentry,
- new_dir, new_dentry, info);
- unlock_kernel();
-
- dput(new_dentry);
-exit4:
- dput(old_dentry);
-exit3:
- unlock_rename(new_dir, old_dir);
-exit2:
- path_release(&newnd);
-exit1:
- path_release(&oldnd);
-exit:
- return error;
-}
-
-int lento_rename(const char * oldname, const char * newname,
- struct lento_vfs_context *info)
-{
- int error;
- char * from;
- char * to;
-
- from = getname(oldname);
- if(IS_ERR(from))
- return PTR_ERR(from);
- to = getname(newname);
- error = PTR_ERR(to);
- if (!IS_ERR(to)) {
- error = lento_do_rename(from,to, info);
- putname(to);
- }
- putname(from);
- return error;
-}
-
-struct dentry *presto_iopen(struct dentry *dentry,
- ino_t ino, unsigned int generation)
-{
- struct presto_file_set *fset;
- char name[48];
- int error;
-
- ENTRY;
- /* see if we already have the dentry we want */
- if (dentry->d_inode && dentry->d_inode->i_ino == ino &&
- dentry->d_inode->i_generation == generation) {
- EXIT;
- return dentry;
- }
-
- /* Make sure we have a cache beneath us. We should always find at
- * least one dentry inside the cache (if it exists), otherwise not
- * even the cache root exists, or we passed in a bad name.
- */
- fset = presto_fset(dentry);
- error = -EINVAL;
- if (!fset) {
- CERROR("No fileset for %*s!\n",
- dentry->d_name.len, dentry->d_name.name);
- EXIT;
- dput(dentry);
- return ERR_PTR(error);
- }
- dput(dentry);
-
- sprintf(name, "%s%#lx%c%#x",
- PRESTO_ILOOKUP_MAGIC, ino, PRESTO_ILOOKUP_SEP, generation);
- CDEBUG(D_PIOCTL, "opening %ld by number (as %s)\n", ino, name);
- return lookup_one_len(name, fset->fset_dentry, strlen(name));
-}
-
-static struct file *presto_filp_dopen(struct dentry *dentry, int flags)
-{
- struct file *f;
- struct inode *inode;
- int flag, error;
-
- ENTRY;
- error = -ENFILE;
- f = get_empty_filp();
- if (!f) {
- CDEBUG(D_PIOCTL, "error getting file pointer\n");
- EXIT;
- goto out;
- }
- f->f_flags = flag = flags;
- f->f_mode = (flag+1) & O_ACCMODE;
- inode = dentry->d_inode;
- if (f->f_mode & FMODE_WRITE) {
- error = get_write_access(inode);
- if (error) {
- CDEBUG(D_PIOCTL, "error getting write access\n");
- EXIT; goto cleanup_file;
- }
- }
-
- /* XXX: where the fuck is ->f_vfsmnt? */
- f->f_dentry = dentry;
- f->f_mapping = dentry->d_inode->i_mapping;
- f->f_pos = 0;
- //f->f_reada = 0;
- f->f_op = NULL;
- if (inode->i_op)
- /* XXX should we set to presto ops, or leave at cache ops? */
- f->f_op = inode->i_fop;
- if (f->f_op && f->f_op->open) {
- error = f->f_op->open(inode, f);
- if (error) {
- CDEBUG(D_PIOCTL, "error calling cache 'open'\n");
- EXIT;
- goto cleanup_all;
- }
- }
- f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
-
- return f;
-
-cleanup_all:
- if (f->f_mode & FMODE_WRITE)
- put_write_access(inode);
-cleanup_file:
- put_filp(f);
-out:
- return ERR_PTR(error);
-}
-
-
-/* Open an inode by number. We pass in the cache root name (or a subdirectory
- * from the cache that is guaranteed to exist) to be able to access the cache.
- */
-int lento_iopen(const char *name, ino_t ino, unsigned int generation,
- int flags)
-{
- char * tmp;
- struct dentry *dentry;
- struct nameidata nd;
- int fd;
- int error;
-
- ENTRY;
- CDEBUG(D_PIOCTL,
- "open %s:inode %#lx (%ld), generation %x (%d), flags %d \n",
- name, ino, ino, generation, generation, flags);
- /* We don't allow creation of files by number only, as it would
- * lead to a dangling files not in any directory. We could also
- * just turn off the flag and ignore it.
- */
- if (flags & O_CREAT) {
- CERROR("%s: create file by inode number (%ld) not allowed\n",
- __FUNCTION__, ino);
- EXIT;
- return -EACCES;
- }
-
- tmp = getname(name);
- if (IS_ERR(tmp)) {
- EXIT;
- return PTR_ERR(tmp);
- }
-
- lock_kernel();
-again: /* look the named file or a parent directory so we can get the cache */
- error = presto_walk(tmp, &nd);
- if ( error && error != -ENOENT ) {
- EXIT;
- unlock_kernel();
- putname(tmp);
- return error;
- }
- if (error == -ENOENT)
- dentry = NULL;
- else
- dentry = nd.dentry;
-
- /* we didn't find the named file, so see if a parent exists */
- if (!dentry) {
- char *slash;
-
- slash = strrchr(tmp, '/');
- if (slash && slash != tmp) {
- *slash = '\0';
- path_release(&nd);
- goto again;
- }
- /* we should never get here... */
- CDEBUG(D_PIOCTL, "no more path components to try!\n");
- fd = -ENOENT;
- goto exit;
- }
- CDEBUG(D_PIOCTL, "returned dentry %p\n", dentry);
-
- dentry = presto_iopen(dentry, ino, generation);
- fd = PTR_ERR(dentry);
- if (IS_ERR(dentry)) {
- EXIT;
- goto exit;
- }
-
- /* XXX start of code that might be replaced by something like:
- * if (flags & (O_WRONLY | O_RDWR)) {
- * error = get_write_access(dentry->d_inode);
- * if (error) {
- * EXIT;
- * goto cleanup_dput;
- * }
- * }
- * fd = open_dentry(dentry, flags);
- *
- * including the presto_filp_dopen() function (check dget counts!)
- */
- fd = get_unused_fd();
- if (fd < 0) {
- EXIT;
- goto exit;
- }
-
- {
- int error;
- struct file * f = presto_filp_dopen(dentry, flags);
- error = PTR_ERR(f);
- if (IS_ERR(f)) {
- put_unused_fd(fd);
- fd = error;
- } else {
- fd_install(fd, f);
- }
- }
- /* end of code that might be replaced by open_dentry */
-
- EXIT;
-exit:
- unlock_kernel();
- path_release(&nd);
- putname(tmp);
- return fd;
-}
-
-#ifdef CONFIG_FS_EXT_ATTR
-
-#if 0 /* was a broken check for Posix ACLs */
-/* Posix ACL code changes i_mode without using a notify_change (or
- * a mark_inode_dirty!). We need to duplicate this at the reintegrator
- * which is done by this function. This function also takes care of
- * resetting the cached posix acls in this inode. If we don't reset these
- * VFS continues using the old acl information, which by now may be out of
- * date.
- */
-int presto_setmode(struct presto_file_set *fset, struct dentry *dentry,
- mode_t mode)
-{
- struct inode *inode = dentry->d_inode;
-
- ENTRY;
- /* The extended attributes for this inode were modified.
- * At this point we can not be sure if any of the ACL
- * information for this inode was updated. So we will
- * force VFS to reread the acls. Note that we do this
- * only when called from the SETEXTATTR ioctl, which is why we
- * do this while setting the mode of the file. Also note
- * that mark_inode_dirty is not be needed for i_*acl only
- * to force i_mode info to disk, and should be removed once
- * we use notify_change to update the mode.
- * XXX: is mode setting really needed? Just setting acl's should
- * be enough! VFS should change the i_mode as needed? SHP
- */
- if (inode->i_acl &&
- inode->i_acl != POSIX_ACL_NOT_CACHED)
- posix_acl_release(inode->i_acl);
- if (inode->i_default_acl &&
- inode->i_default_acl != POSIX_ACL_NOT_CACHED)
- posix_acl_release(inode->i_default_acl);
- inode->i_acl = POSIX_ACL_NOT_CACHED;
- inode->i_default_acl = POSIX_ACL_NOT_CACHED;
- inode->i_mode = mode;
- /* inode should already be dirty...but just in case */
- mark_inode_dirty(inode);
- return 0;
-
-#if 0
- /* XXX: The following code is the preferred way to set mode,
- * however, I need to carefully go through possible recursion
- * paths back into presto. See comments in presto_do_setattr.
- */
- {
- int error=0;
- struct super_operations *sops;
- struct iattr iattr;
-
- iattr.ia_mode = mode;
- iattr.ia_valid = ATTR_MODE|ATTR_FORCE;
-
- error = -EPERM;
- sops = filter_c2csops(fset->fset_cache->cache_filter);
- if (!sops &&
- !sops->notify_change) {
- EXIT;
- return error;
- }
-
- error = sops->notify_change(dentry, &iattr);
-
- EXIT;
- return error;
- }
-#endif
-}
-#endif
-
-/* setextattr Interface to cache filesystem */
-int presto_do_set_ext_attr(struct presto_file_set *fset,
- struct dentry *dentry,
- const char *name, void *buffer,
- size_t buffer_len, int flags, mode_t *mode,
- struct lento_vfs_context *info)
-{
- struct rec_info rec;
- struct inode *inode = dentry->d_inode;
- struct inode_operations *iops;
- int error;
- struct presto_version ver;
- void *handle;
- char temp[PRESTO_EXT_ATTR_NAME_MAX+1];
-
- ENTRY;
- error = -EROFS;
- if (IS_RDONLY(inode)) {
- EXIT;
- return -EROFS;
- }
-
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
- EXIT;
- return -EPERM;
- }
-
- presto_getversion(&ver, inode);
- error = -EPERM;
- /* We need to invoke different filters based on whether
- * this dentry is a regular file, directory or symlink.
- */
- switch (inode->i_mode & S_IFMT) {
- case S_IFLNK: /* symlink */
- iops = filter_c2csiops(fset->fset_cache->cache_filter);
- break;
- case S_IFDIR: /* directory */
- iops = filter_c2cdiops(fset->fset_cache->cache_filter);
- break;
- case S_IFREG:
- default: /* everything else including regular files */
- iops = filter_c2cfiops(fset->fset_cache->cache_filter);
- }
-
- if (!iops && !iops->set_ext_attr) {
- EXIT;
- return error;
- }
-
- error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH);
- if (error) {
- EXIT;
- return error;
- }
-
-
- handle = presto_trans_start(fset,dentry->d_inode,KML_OPCODE_SETEXTATTR);
- if ( IS_ERR(handle) ) {
- CERROR("presto_do_set_ext_attr: no space for transaction\n");
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- return -ENOSPC;
- }
-
- /* We first "truncate" name to the maximum allowable in presto */
- /* This simulates the strncpy_from_use code in fs/ext_attr.c */
- strlcpy(temp,name,sizeof(temp));
-
- /* Pass down to cache*/
- error = iops->set_ext_attr(inode,temp,buffer,buffer_len,flags);
- if (error) {
- EXIT;
- goto exit;
- }
-
-#if 0 /* was a broken check for Posix ACLs */
- /* Reset mode if specified*/
- /* XXX: when we do native acl support, move this code out! */
- if (mode != NULL) {
- error = presto_setmode(fset, dentry, *mode);
- if (error) {
- EXIT;
- goto exit;
- }
- }
-#endif
-
- /* Reset ctime. Only inode change time (ctime) is affected */
- error = presto_settime(fset, NULL, NULL, dentry, info, ATTR_CTIME);
- if (error) {
- EXIT;
- goto exit;
- }
-
- if (flags & EXT_ATTR_FLAG_USER) {
- CERROR(" USER flag passed to presto_do_set_ext_attr!\n");
- BUG();
- }
-
- /* We are here, so set_ext_attr succeeded. We no longer need to keep
- * track of EXT_ATTR_FLAG_{EXISTS,CREATE}, instead, we will force
- * the attribute value during log replay. -SHP
- */
- flags &= ~(EXT_ATTR_FLAG_EXISTS | EXT_ATTR_FLAG_CREATE);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SETEXTATTR | 0x10);
- if ( presto_do_kml(info, dentry) )
- error = presto_journal_set_ext_attr
- (&rec, fset, dentry, &ver, name, buffer,
- buffer_len, flags);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SETEXTATTR | 0x20);
- if ( presto_do_rcvd(info, dentry) )
- error = presto_write_last_rcvd(&rec, fset, info);
-
- presto_debug_fail_blkdev(fset, KML_OPCODE_SETEXTATTR | 0x30);
- EXIT;
-exit:
- presto_release_space(fset->fset_cache, PRESTO_REQHIGH);
- presto_trans_commit(fset, handle);
-
- return error;
-}
-#endif
+++ /dev/null
-/*
- * fs/isofs/export.c
- *
- * (C) 2004 Paul Serice - The new inode scheme requires switching
- * from iget() to iget5_locked() which means
- * the NFS export operations have to be hand
- * coded because the default routines rely on
- * iget().
- *
- * The following files are helpful:
- *
- * Documentation/filesystems/Exporting
- * fs/exportfs/expfs.c.
- */
-
-#include <linux/buffer_head.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/iso_fs.h>
-#include <linux/kernel.h>
-
-static struct dentry *
-isofs_export_iget(struct super_block *sb,
- unsigned long block,
- unsigned long offset,
- __u32 generation)
-{
- struct inode *inode;
- struct dentry *result;
- if (block == 0)
- return ERR_PTR(-ESTALE);
- inode = isofs_iget(sb, block, offset);
- if (inode == NULL)
- return ERR_PTR(-ENOMEM);
- if (is_bad_inode(inode)
- || (generation && inode->i_generation != generation))
- {
- iput(inode);
- return ERR_PTR(-ESTALE);
- }
- result = d_alloc_anon(inode);
- if (!result) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- return result;
-}
-
-static struct dentry *
-isofs_export_get_dentry(struct super_block *sb, void *vobjp)
-{
- __u32 *objp = vobjp;
- unsigned long block = objp[0];
- unsigned long offset = objp[1];
- __u32 generation = objp[2];
- return isofs_export_iget(sb, block, offset, generation);
-}
-
-/* This function is surprisingly simple. The trick is understanding
- * that "child" is always a directory. So, to find its parent, you
- * simply need to find its ".." entry, normalize its block and offset,
- * and return the underlying inode. See the comments for
- * isofs_normalize_block_and_offset(). */
-static struct dentry *isofs_export_get_parent(struct dentry *child)
-{
- unsigned long parent_block = 0;
- unsigned long parent_offset = 0;
- struct inode *child_inode = child->d_inode;
- struct iso_inode_info *e_child_inode = ISOFS_I(child_inode);
- struct inode *parent_inode = NULL;
- struct iso_directory_record *de = NULL;
- struct buffer_head * bh = NULL;
- struct dentry *rv = NULL;
-
- /* "child" must always be a directory. */
- if (!S_ISDIR(child_inode->i_mode)) {
- printk(KERN_ERR "isofs: isofs_export_get_parent(): "
- "child is not a directory!\n");
- rv = ERR_PTR(-EACCES);
- goto out;
- }
-
- /* It is an invariant that the directory offset is zero. If
- * it is not zero, it means the directory failed to be
- * normalized for some reason. */
- if (e_child_inode->i_iget5_offset != 0) {
- printk(KERN_ERR "isofs: isofs_export_get_parent(): "
- "child directory not normalized!\n");
- rv = ERR_PTR(-EACCES);
- goto out;
- }
-
- /* The child inode has been normalized such that its
- * i_iget5_block value points to the "." entry. Fortunately,
- * the ".." entry is located in the same block. */
- parent_block = e_child_inode->i_iget5_block;
-
- /* Get the block in question. */
- bh = sb_bread(child_inode->i_sb, parent_block);
- if (bh == NULL) {
- rv = ERR_PTR(-EACCES);
- goto out;
- }
-
- /* This is the "." entry. */
- de = (struct iso_directory_record*)bh->b_data;
-
- /* The ".." entry is always the second entry. */
- parent_offset = (unsigned long)isonum_711(de->length);
- de = (struct iso_directory_record*)(bh->b_data + parent_offset);
-
- /* Verify it is in fact the ".." entry. */
- if ((isonum_711(de->name_len) != 1) || (de->name[0] != 1)) {
- printk(KERN_ERR "isofs: Unable to find the \"..\" "
- "directory for NFS.\n");
- rv = ERR_PTR(-EACCES);
- goto out;
- }
-
- /* Normalize */
- isofs_normalize_block_and_offset(de, &parent_block, &parent_offset);
-
- /* Get the inode. */
- parent_inode = isofs_iget(child_inode->i_sb,
- parent_block,
- parent_offset);
- if (parent_inode == NULL) {
- rv = ERR_PTR(-EACCES);
- goto out;
- }
-
- /* Allocate the dentry. */
- rv = d_alloc_anon(parent_inode);
- if (rv == NULL) {
- rv = ERR_PTR(-ENOMEM);
- goto out;
- }
-
- out:
- if (bh) {
- brelse(bh);
- }
- return rv;
-}
-
-static int
-isofs_export_encode_fh(struct dentry *dentry,
- __u32 *fh32,
- int *max_len,
- int connectable)
-{
- struct inode * inode = dentry->d_inode;
- struct iso_inode_info * ei = ISOFS_I(inode);
- int len = *max_len;
- int type = 1;
- __u16 *fh16 = (__u16*)fh32;
-
- /*
- * WARNING: max_len is 5 for NFSv2. Because of this
- * limitation, we use the lower 16 bits of fh32[1] to hold the
- * offset of the inode and the upper 16 bits of fh32[1] to
- * hold the offset of the parent.
- */
-
- if (len < 3 || (connectable && len < 5))
- return 255;
-
- len = 3;
- fh32[0] = ei->i_iget5_block;
- fh16[2] = (__u16)ei->i_iget5_offset; /* fh16 [sic] */
- fh32[2] = inode->i_generation;
- if (connectable && !S_ISDIR(inode->i_mode)) {
- struct inode *parent;
- struct iso_inode_info *eparent;
- spin_lock(&dentry->d_lock);
- parent = dentry->d_parent->d_inode;
- eparent = ISOFS_I(parent);
- fh32[3] = eparent->i_iget5_block;
- fh16[3] = (__u16)eparent->i_iget5_offset; /* fh16 [sic] */
- fh32[4] = parent->i_generation;
- spin_unlock(&dentry->d_lock);
- len = 5;
- type = 2;
- }
- *max_len = len;
- return type;
-}
-
-
-static struct dentry *
-isofs_export_decode_fh(struct super_block *sb,
- __u32 *fh32,
- int fh_len,
- int fileid_type,
- int (*acceptable)(void *context, struct dentry *de),
- void *context)
-{
- __u16 *fh16 = (__u16*)fh32;
- __u32 child[3]; /* The child is what triggered all this. */
- __u32 parent[3]; /* The parent is just along for the ride. */
-
- if (fh_len < 3 || fileid_type > 2)
- return NULL;
-
- child[0] = fh32[0];
- child[1] = fh16[2]; /* fh16 [sic] */
- child[2] = fh32[2];
-
- parent[0] = 0;
- parent[1] = 0;
- parent[2] = 0;
- if (fileid_type == 2) {
- if (fh_len > 2) parent[0] = fh32[3];
- parent[1] = fh16[3]; /* fh16 [sic] */
- if (fh_len > 4) parent[2] = fh32[4];
- }
-
- return sb->s_export_op->find_exported_dentry(sb, child, parent,
- acceptable, context);
-}
-
-
-struct export_operations isofs_export_ops = {
- .decode_fh = isofs_export_decode_fh,
- .encode_fh = isofs_export_encode_fh,
- .get_dentry = isofs_export_get_dentry,
- .get_parent = isofs_export_get_parent,
-};
+++ /dev/null
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
- * University of Szeged, Hungary
- *
- * For licensing information, see the file 'LICENCE' in the
- * jffs2 directory.
- *
- * $Id: compr.h,v 1.5 2004/06/23 16:34:39 havasi Exp $
- *
- */
-
-#ifndef __JFFS2_COMPR_H__
-#define __JFFS2_COMPR_H__
-
-#include <linux/kernel.h>
-#include <linux/vmalloc.h>
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/jffs2.h>
-#include <linux/jffs2_fs_i.h>
-#include <linux/jffs2_fs_sb.h>
-#include "nodelist.h"
-
-#define JFFS2_RUBINMIPS_PRIORITY 10
-#define JFFS2_DYNRUBIN_PRIORITY 20
-#define JFFS2_LZARI_PRIORITY 30
-#define JFFS2_LZO_PRIORITY 40
-#define JFFS2_RTIME_PRIORITY 50
-#define JFFS2_ZLIB_PRIORITY 60
-
-#define JFFS2_RUBINMIPS_DISABLED /* RUBINs will be used only */
-#define JFFS2_DYNRUBIN_DISABLED /* for decompression */
-
-#define JFFS2_COMPR_MODE_NONE 0
-#define JFFS2_COMPR_MODE_PRIORITY 1
-#define JFFS2_COMPR_MODE_SIZE 2
-
-void jffs2_set_compression_mode(int mode);
-int jffs2_get_compression_mode(void);
-
-struct jffs2_compressor {
- struct list_head list;
- int priority; /* used by prirority comr. mode */
- char *name;
- char compr; /* JFFS2_COMPR_XXX */
- int (*compress)(unsigned char *data_in, unsigned char *cpage_out,
- uint32_t *srclen, uint32_t *destlen, void *model);
- int (*decompress)(unsigned char *cdata_in, unsigned char *data_out,
- uint32_t cdatalen, uint32_t datalen, void *model);
- int usecount;
- int disabled; /* if seted the compressor won't compress */
- unsigned char *compr_buf; /* used by size compr. mode */
- uint32_t compr_buf_size; /* used by size compr. mode */
- uint32_t stat_compr_orig_size;
- uint32_t stat_compr_new_size;
- uint32_t stat_compr_blocks;
- uint32_t stat_decompr_blocks;
-};
-
-int jffs2_register_compressor(struct jffs2_compressor *comp);
-int jffs2_unregister_compressor(struct jffs2_compressor *comp);
-
-int jffs2_compressors_init(void);
-int jffs2_compressors_exit(void);
-
-uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
- unsigned char *data_in, unsigned char **cpage_out,
- uint32_t *datalen, uint32_t *cdatalen);
-
-int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
- uint16_t comprtype, unsigned char *cdata_in,
- unsigned char *data_out, uint32_t cdatalen, uint32_t datalen);
-
-void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig);
-
-#ifdef CONFIG_JFFS2_PROC
-int jffs2_enable_compressor_name(const char *name);
-int jffs2_disable_compressor_name(const char *name);
-int jffs2_set_compression_mode_name(const char *mode_name);
-char *jffs2_get_compression_mode_name(void);
-int jffs2_set_compressor_priority(const char *mode_name, int priority);
-char *jffs2_list_compressors(void);
-char *jffs2_stats(void);
-#endif
-
-/* Compressor modules */
-/* These functions will be called by jffs2_compressors_init/exit */
-
-#ifdef CONFIG_JFFS2_RUBIN
-int jffs2_rubinmips_init(void);
-void jffs2_rubinmips_exit(void);
-int jffs2_dynrubin_init(void);
-void jffs2_dynrubin_exit(void);
-#endif
-#ifdef CONFIG_JFFS2_RTIME
-int jffs2_rtime_init(void);
-void jffs2_rtime_exit(void);
-#endif
-#ifdef CONFIG_JFFS2_ZLIB
-int jffs2_zlib_init(void);
-void jffs2_zlib_exit(void);
-#endif
-#ifdef CONFIG_JFFS2_LZARI
-int jffs2_lzari_init(void);
-void jffs2_lzari_exit(void);
-#endif
-#ifdef CONFIG_JFFS2_LZO
-int jffs2_lzo_init(void);
-void jffs2_lzo_exit(void);
-#endif
-
-/* Prototypes from proc.c */
-int jffs2_proc_init(void);
-int jffs2_proc_exit(void);
-
-#endif /* __JFFS2_COMPR_H__ */
+++ /dev/null
-/*
- * linux/fs/nls_ascii.c
- *
- * Charset ascii translation tables.
- * Generated automatically from the Unicode and charset
- * tables from the Unicode Organization (www.unicode.org).
- * The Unicode to charset table has only exact mappings.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/nls.h>
-#include <linux/errno.h>
-
-static wchar_t charset2uni[128] = {
- /* 0x00*/
- 0x0000, 0x0001, 0x0002, 0x0003,
- 0x0004, 0x0005, 0x0006, 0x0007,
- 0x0008, 0x0009, 0x000a, 0x000b,
- 0x000c, 0x000d, 0x000e, 0x000f,
- /* 0x10*/
- 0x0010, 0x0011, 0x0012, 0x0013,
- 0x0014, 0x0015, 0x0016, 0x0017,
- 0x0018, 0x0019, 0x001a, 0x001b,
- 0x001c, 0x001d, 0x001e, 0x001f,
- /* 0x20*/
- 0x0020, 0x0021, 0x0022, 0x0023,
- 0x0024, 0x0025, 0x0026, 0x0027,
- 0x0028, 0x0029, 0x002a, 0x002b,
- 0x002c, 0x002d, 0x002e, 0x002f,
- /* 0x30*/
- 0x0030, 0x0031, 0x0032, 0x0033,
- 0x0034, 0x0035, 0x0036, 0x0037,
- 0x0038, 0x0039, 0x003a, 0x003b,
- 0x003c, 0x003d, 0x003e, 0x003f,
- /* 0x40*/
- 0x0040, 0x0041, 0x0042, 0x0043,
- 0x0044, 0x0045, 0x0046, 0x0047,
- 0x0048, 0x0049, 0x004a, 0x004b,
- 0x004c, 0x004d, 0x004e, 0x004f,
- /* 0x50*/
- 0x0050, 0x0051, 0x0052, 0x0053,
- 0x0054, 0x0055, 0x0056, 0x0057,
- 0x0058, 0x0059, 0x005a, 0x005b,
- 0x005c, 0x005d, 0x005e, 0x005f,
- /* 0x60*/
- 0x0060, 0x0061, 0x0062, 0x0063,
- 0x0064, 0x0065, 0x0066, 0x0067,
- 0x0068, 0x0069, 0x006a, 0x006b,
- 0x006c, 0x006d, 0x006e, 0x006f,
- /* 0x70*/
- 0x0070, 0x0071, 0x0072, 0x0073,
- 0x0074, 0x0075, 0x0076, 0x0077,
- 0x0078, 0x0079, 0x007a, 0x007b,
- 0x007c, 0x007d, 0x007e, 0x007f,
-};
-
-static unsigned char page00[128] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
- 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
- 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
- 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
- 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
- 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
- 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
- 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
- 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
- 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
- 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
- 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
- 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
-};
-
-static unsigned char *page_uni2charset[128] = {
- page00, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-};
-
-static unsigned char charset2lower[128] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
- 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
- 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
- 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
- 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
- 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
- 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
- 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
- 0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
- 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
- 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
- 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
- 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
-};
-
-static unsigned char charset2upper[128] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
- 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
- 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
- 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
- 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
- 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
- 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
- 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
- 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
- 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
- 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
- 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
- 0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
-};
-
-static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
-{
- unsigned char *uni2charset;
- unsigned char cl = uni & 0x00ff;
- unsigned char ch = (uni & 0xff00) >> 8;
-
- if (boundlen <= 0)
- return -ENAMETOOLONG;
-
- uni2charset = page_uni2charset[ch];
- if (uni2charset && uni2charset[cl])
- out[0] = uni2charset[cl];
- else
- return -EINVAL;
- return 1;
-}
-
-static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
-{
- *uni = charset2uni[*rawstring];
- if (*uni == 0x0000)
- return -EINVAL;
- return 1;
-}
-
-static struct nls_table table = {
- .charset = "ascii",
- .uni2char = uni2char,
- .char2uni = char2uni,
- .charset2lower = charset2lower,
- .charset2upper = charset2upper,
- .owner = THIS_MODULE,
-};
-
-static int __init init_nls_ascii(void)
-{
- return register_nls(&table);
-}
-
-static void __exit exit_nls_ascii(void)
-{
- unregister_nls(&table);
-}
-
-module_init(init_nls_ascii)
-module_exit(exit_nls_ascii)
-
-MODULE_LICENSE("Dual BSD/GPL");
+++ /dev/null
-/*
- * collate.c - NTFS kernel collation handling. Part of the Linux-NTFS project.
- *
- * Copyright (c) 2004 Anton Altaparmakov
- *
- * This program/include file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program/include file is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (in the main directory of the Linux-NTFS
- * distribution in the file COPYING); if not, write to the Free Software
- * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "ntfs.h"
-#include "collate.h"
-
-static int ntfs_collate_binary(ntfs_volume *vol,
- const void *data1, const int data1_len,
- const void *data2, const int data2_len)
-{
- int rc;
-
- ntfs_debug("Entering.");
- rc = memcmp(data1, data2, min(data1_len, data2_len));
- if (!rc && (data1_len != data2_len)) {
- if (data1_len < data2_len)
- rc = -1;
- else
- rc = 1;
- }
- ntfs_debug("Done, returning %i", rc);
- return rc;
-}
-
-static int ntfs_collate_ntofs_ulong(ntfs_volume *vol,
- const void *data1, const int data1_len,
- const void *data2, const int data2_len)
-{
- int rc;
- u32 d1, d2;
-
- ntfs_debug("Entering.");
- // FIXME: We don't really want to bug here.
- BUG_ON(data1_len != data2_len);
- BUG_ON(data1_len != 4);
- d1 = le32_to_cpup(data1);
- d2 = le32_to_cpup(data2);
- if (d1 < d2)
- rc = -1;
- else {
- if (d1 == d2)
- rc = 0;
- else
- rc = 1;
- }
- ntfs_debug("Done, returning %i", rc);
- return rc;
-}
-
-typedef int (*ntfs_collate_func_t)(ntfs_volume *, const void *, const int,
- const void *, const int);
-
-static ntfs_collate_func_t ntfs_do_collate0x0[3] = {
- ntfs_collate_binary,
- NULL/*ntfs_collate_file_name*/,
- NULL/*ntfs_collate_unicode_string*/,
-};
-
-static ntfs_collate_func_t ntfs_do_collate0x1[4] = {
- ntfs_collate_ntofs_ulong,
- NULL/*ntfs_collate_ntofs_sid*/,
- NULL/*ntfs_collate_ntofs_security_hash*/,
- NULL/*ntfs_collate_ntofs_ulongs*/,
-};
-
-/**
- * ntfs_collate - collate two data items using a specified collation rule
- * @vol: ntfs volume to which the data items belong
- * @cr: collation rule to use when comparing the items
- * @data1: first data item to collate
- * @data1_len: length in bytes of @data1
- * @data2: second data item to collate
- * @data2_len: length in bytes of @data2
- *
- * Collate the two data items @data1 and @data2 using the collation rule @cr
- * and return -1, 0, ir 1 if @data1 is found, respectively, to collate before,
- * to match, or to collate after @data2.
- *
- * For speed we use the collation rule @cr as an index into two tables of
- * function pointers to call the appropriate collation function.
- */
-int ntfs_collate(ntfs_volume *vol, COLLATION_RULES cr,
- const void *data1, const int data1_len,
- const void *data2, const int data2_len) {
- ntfs_debug("Entering.");
- /*
- * FIXME: At the moment we only support COLLATION_BINARY and
- * COLLATION_NTOFS_ULONG, so we BUG() for everything else for now.
- */
- BUG_ON(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG);
- cr = le32_to_cpu(cr);
- BUG_ON(cr < 0);
- if (cr <= 0x02)
- return ntfs_do_collate0x0[cr](vol, data1, data1_len,
- data2, data2_len);
- BUG_ON(cr < 0x10);
- cr -= 0x10;
- if (likely(cr <= 3))
- return ntfs_do_collate0x1[cr](vol, data1, data1_len,
- data2, data2_len);
- BUG();
- return 0;
-}
+++ /dev/null
-/*
- * collate.h - Defines for NTFS kernel collation handling. Part of the
- * Linux-NTFS project.
- *
- * Copyright (c) 2004 Anton Altaparmakov
- *
- * This program/include file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program/include file is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (in the main directory of the Linux-NTFS
- * distribution in the file COPYING); if not, write to the Free Software
- * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _LINUX_NTFS_COLLATE_H
-#define _LINUX_NTFS_COLLATE_H
-
-#include "types.h"
-#include "volume.h"
-
-static inline BOOL ntfs_is_collation_rule_supported(COLLATION_RULES cr) {
- /*
- * FIXME: At the moment we only support COLLATION_BINARY and
- * COLLATION_NTOFS_ULONG, so we return false for everything else for
- * now.
- */
- if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG))
- return FALSE;
- cr = le32_to_cpu(cr);
- if (likely(((cr >= 0) && (cr <= 0x02)) ||
- ((cr >= 0x10) && (cr <= 0x13))))
- return TRUE;
- return FALSE;
-}
-
-extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULES cr,
- const void *data1, const int data1_len,
- const void *data2, const int data2_len);
-
-#endif /* _LINUX_NTFS_COLLATE_H */
+++ /dev/null
-/*
- * index.c - NTFS kernel index handling. Part of the Linux-NTFS project.
- *
- * Copyright (c) 2004 Anton Altaparmakov
- *
- * This program/include file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program/include file is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (in the main directory of the Linux-NTFS
- * distribution in the file COPYING); if not, write to the Free Software
- * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "ntfs.h"
-#include "collate.h"
-#include "index.h"
-
-/**
- * ntfs_index_ctx_get - allocate and initialize a new index context
- * @idx_ni: ntfs index inode with which to initialize the context
- *
- * Allocate a new index context, initialize it with @idx_ni and return it.
- * Return NULL if allocation failed.
- *
- * Locking: Caller must hold i_sem on the index inode.
- */
-ntfs_index_context *ntfs_index_ctx_get(ntfs_inode *idx_ni)
-{
- ntfs_index_context *ictx;
-
- ictx = kmem_cache_alloc(ntfs_index_ctx_cache, SLAB_NOFS);
- if (ictx) {
- ictx->idx_ni = idx_ni;
- ictx->entry = NULL;
- ictx->data = NULL;
- ictx->data_len = 0;
- ictx->is_in_root = 0;
- ictx->ir = NULL;
- ictx->actx = NULL;
- ictx->base_ni = NULL;
- ictx->ia = NULL;
- ictx->page = NULL;
- }
- return ictx;
-}
-
-/**
- * ntfs_index_ctx_put - release an index context
- * @ictx: index context to free
- *
- * Release the index context @ictx, releasing all associated resources.
- *
- * Locking: Caller must hold i_sem on the index inode.
- */
-void ntfs_index_ctx_put(ntfs_index_context *ictx)
-{
- if (ictx->entry) {
- if (ictx->is_in_root) {
- if (ictx->actx)
- put_attr_search_ctx(ictx->actx);
- if (ictx->base_ni)
- unmap_mft_record(ictx->base_ni);
- } else {
- struct page *page = ictx->page;
- if (page) {
- BUG_ON(!PageLocked(page));
- unlock_page(page);
- ntfs_unmap_page(page);
- }
- }
- }
- kmem_cache_free(ntfs_index_ctx_cache, ictx);
- return;
-}
-
-/**
- * ntfs_index_lookup - find a key in an index and return its index entry
- * @key: [IN] key for which to search in the index
- * @key_len: [IN] length of @key in bytes
- * @ictx: [IN/OUT] context describing the index and the returned entry
- *
- * Before calling ntfs_index_lookup(), @ictx must have been obtained from a
- * call to ntfs_index_ctx_get().
- *
- * Look for the @key in the index specified by the index lookup context @ictx.
- * ntfs_index_lookup() walks the contents of the index looking for the @key.
- *
- * If the @key is found in the index, 0 is returned and @ictx is setup to
- * describe the index entry containing the matching @key. @ictx->entry is the
- * index entry and @ictx->data and @ictx->data_len are the index entry data and
- * its length in bytes, respectively.
- *
- * If the @key is not found in the index, -ENOENT is returned and @ictx is
- * setup to describe the index entry whose key collates immediately after the
- * search @key, i.e. this is the position in the index at which an index entry
- * with a key of @key would need to be inserted.
- *
- * If an error occurs return the negative error code and @ictx is left
- * untouched.
- *
- * When finished with the entry and its data, call ntfs_index_ctx_put() to free
- * the context and other associated resources.
- *
- * If the index entry was modified, call flush_dcache_index_entry_page()
- * immediately after the modification and either ntfs_index_entry_mark_dirty()
- * or ntfs_index_entry_write() before the call to ntfs_index_ctx_put() to
- * ensure that the changes are written to disk.
- *
- * Locking: - Caller must hold i_sem on the index inode.
- * - Each page cache page in the index allocation mapping must be
- * locked whilst being accessed otherwise we may find a corrupt
- * page due to it being under ->writepage at the moment which
- * applies the mst protection fixups before writing out and then
- * removes them again after the write is complete after which it
- * unlocks the page.
- */
-int ntfs_index_lookup(const void *key, const int key_len,
- ntfs_index_context *ictx)
-{
- ntfs_inode *idx_ni = ictx->idx_ni;
- ntfs_volume *vol = idx_ni->vol;
- struct super_block *sb = vol->sb;
- ntfs_inode *base_ni = idx_ni->ext.base_ntfs_ino;
- MFT_RECORD *m;
- INDEX_ROOT *ir;
- INDEX_ENTRY *ie;
- INDEX_ALLOCATION *ia;
- u8 *index_end;
- attr_search_context *actx;
- int rc, err = 0;
- VCN vcn, old_vcn;
- struct address_space *ia_mapping;
- struct page *page;
- u8 *kaddr;
-
- ntfs_debug("Entering.");
- BUG_ON(!NInoAttr(idx_ni));
- BUG_ON(idx_ni->type != AT_INDEX_ALLOCATION);
- BUG_ON(idx_ni->nr_extents != -1);
- BUG_ON(!base_ni);
- BUG_ON(!key);
- BUG_ON(key_len <= 0);
- if (!ntfs_is_collation_rule_supported(
- idx_ni->itype.index.collation_rule)) {
- ntfs_error(sb, "Index uses unsupported collation rule 0x%x. "
- "Aborting lookup.", le32_to_cpu(
- idx_ni->itype.index.collation_rule));
- return -EOPNOTSUPP;
- }
- /* Get hold of the mft record for the index inode. */
- m = map_mft_record(base_ni);
- if (unlikely(IS_ERR(m))) {
- ntfs_error(sb, "map_mft_record() failed with error code %ld.",
- -PTR_ERR(m));
- return PTR_ERR(m);
- }
- actx = get_attr_search_ctx(base_ni, m);
- if (unlikely(!actx)) {
- err = -ENOMEM;
- goto err_out;
- }
- /* Find the index root attribute in the mft record. */
- if (!lookup_attr(AT_INDEX_ROOT, idx_ni->name, idx_ni->name_len,
- CASE_SENSITIVE, 0, NULL, 0, actx)) {
- ntfs_error(sb, "Index root attribute missing in inode 0x%lx.",
- idx_ni->mft_no);
- err = -EIO;
- goto err_out;
- }
- /* Get to the index root value (it has been verified in read_inode). */
- ir = (INDEX_ROOT*)((u8*)actx->attr +
- le16_to_cpu(actx->attr->data.resident.value_offset));
- index_end = (u8*)&ir->index + le32_to_cpu(ir->index.index_length);
- /* The first index entry. */
- ie = (INDEX_ENTRY*)((u8*)&ir->index +
- le32_to_cpu(ir->index.entries_offset));
- /*
- * Loop until we exceed valid memory (corruption case) or until we
- * reach the last entry.
- */
- for (;; ie = (INDEX_ENTRY*)((u8*)ie + le16_to_cpu(ie->length))) {
- /* Bounds checks. */
- if ((u8*)ie < (u8*)actx->mrec || (u8*)ie +
- sizeof(INDEX_ENTRY_HEADER) > index_end ||
- (u8*)ie + le16_to_cpu(ie->length) > index_end)
- goto idx_err_out;
- /*
- * The last entry cannot contain a key. It can however contain
- * a pointer to a child node in the B+tree so we just break out.
- */
- if (ie->flags & INDEX_ENTRY_END)
- break;
- /* Further bounds checks. */
- if ((u32)sizeof(INDEX_ENTRY_HEADER) +
- le16_to_cpu(ie->key_length) >
- le16_to_cpu(ie->data.vi.data_offset) ||
- (u32)le16_to_cpu(ie->data.vi.data_offset) +
- le16_to_cpu(ie->data.vi.data_length) >
- le16_to_cpu(ie->length))
- goto idx_err_out;
- /* If the keys match perfectly, we setup @ictx and return 0. */
- if ((key_len == le16_to_cpu(ie->key_length)) && !memcmp(key,
- &ie->key, key_len)) {
-ir_done:
- ictx->is_in_root = TRUE;
- ictx->actx = actx;
- ictx->base_ni = base_ni;
- ictx->ia = NULL;
- ictx->page = NULL;
-done:
- ictx->entry = ie;
- ictx->data = (u8*)ie +
- le16_to_cpu(ie->data.vi.data_offset);
- ictx->data_len = le16_to_cpu(ie->data.vi.data_length);
- ntfs_debug("Done.");
- return err;
- }
- /*
- * Not a perfect match, need to do full blown collation so we
- * know which way in the B+tree we have to go.
- */
- rc = ntfs_collate(vol, idx_ni->itype.index.collation_rule, key,
- key_len, &ie->key, le16_to_cpu(ie->key_length));
- /*
- * If @key collates before the key of the current entry, there
- * is definitely no such key in this index but we might need to
- * descend into the B+tree so we just break out of the loop.
- */
- if (rc == -1)
- break;
- /*
- * A match should never happen as the memcmp() call should have
- * cought it, but we still treat it correctly.
- */
- if (!rc)
- goto ir_done;
- /* The keys are not equal, continue the search. */
- }
- /*
- * We have finished with this index without success. Check for the
- * presence of a child node and if not present setup @ictx and return
- * -ENOENT.
- */
- if (!(ie->flags & INDEX_ENTRY_NODE)) {
- ntfs_debug("Entry not found.");
- err = -ENOENT;
- goto ir_done;
- } /* Child node present, descend into it. */
- /* Consistency check: Verify that an index allocation exists. */
- if (!NInoIndexAllocPresent(idx_ni)) {
- ntfs_error(sb, "No index allocation attribute but index entry "
- "requires one. Inode 0x%lx is corrupt or "
- "driver bug.", idx_ni->mft_no);
- err = -EIO;
- goto err_out;
- }
- /* Get the starting vcn of the index_block holding the child node. */
- vcn = sle64_to_cpup((u8*)ie + le16_to_cpu(ie->length) - 8);
- ia_mapping = VFS_I(idx_ni)->i_mapping;
- /*
- * We are done with the index root and the mft record. Release them,
- * otherwise we deadlock with ntfs_map_page().
- */
- put_attr_search_ctx(actx);
- unmap_mft_record(base_ni);
- m = NULL;
- actx = NULL;
-descend_into_child_node:
- /*
- * Convert vcn to index into the index allocation attribute in units
- * of PAGE_CACHE_SIZE and map the page cache page, reading it from
- * disk if necessary.
- */
- page = ntfs_map_page(ia_mapping, vcn <<
- idx_ni->itype.index.vcn_size_bits >> PAGE_CACHE_SHIFT);
- if (IS_ERR(page)) {
- ntfs_error(sb, "Failed to map index page, error %ld.",
- -PTR_ERR(page));
- err = PTR_ERR(page);
- goto err_out;
- }
- lock_page(page);
- kaddr = (u8*)page_address(page);
-fast_descend_into_child_node:
- /* Get to the index allocation block. */
- ia = (INDEX_ALLOCATION*)(kaddr + ((vcn <<
- idx_ni->itype.index.vcn_size_bits) & ~PAGE_CACHE_MASK));
- /* Bounds checks. */
- if ((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE) {
- ntfs_error(sb, "Out of bounds check failed. Corrupt inode "
- "0x%lx or driver bug.", idx_ni->mft_no);
- err = -EIO;
- goto unm_err_out;
- }
- if (sle64_to_cpu(ia->index_block_vcn) != vcn) {
- ntfs_error(sb, "Actual VCN (0x%llx) of index buffer is "
- "different from expected VCN (0x%llx). Inode "
- "0x%lx is corrupt or driver bug.",
- (unsigned long long)
- sle64_to_cpu(ia->index_block_vcn),
- (unsigned long long)vcn, idx_ni->mft_no);
- err = -EIO;
- goto unm_err_out;
- }
- if (le32_to_cpu(ia->index.allocated_size) + 0x18 !=
- idx_ni->itype.index.block_size) {
- ntfs_error(sb, "Index buffer (VCN 0x%llx) of inode 0x%lx has "
- "a size (%u) differing from the index "
- "specified size (%u). Inode is corrupt or "
- "driver bug.", (unsigned long long)vcn,
- idx_ni->mft_no,
- le32_to_cpu(ia->index.allocated_size) + 0x18,
- idx_ni->itype.index.block_size);
- err = -EIO;
- goto unm_err_out;
- }
- index_end = (u8*)ia + idx_ni->itype.index.block_size;
- if (index_end > kaddr + PAGE_CACHE_SIZE) {
- ntfs_error(sb, "Index buffer (VCN 0x%llx) of inode 0x%lx "
- "crosses page boundary. Impossible! Cannot "
- "access! This is probably a bug in the "
- "driver.", (unsigned long long)vcn,
- idx_ni->mft_no);
- err = -EIO;
- goto unm_err_out;
- }
- index_end = (u8*)&ia->index + le32_to_cpu(ia->index.index_length);
- if (index_end > (u8*)ia + idx_ni->itype.index.block_size) {
- ntfs_error(sb, "Size of index buffer (VCN 0x%llx) of inode "
- "0x%lx exceeds maximum size.",
- (unsigned long long)vcn, idx_ni->mft_no);
- err = -EIO;
- goto unm_err_out;
- }
- /* The first index entry. */
- ie = (INDEX_ENTRY*)((u8*)&ia->index +
- le32_to_cpu(ia->index.entries_offset));
- /*
- * Iterate similar to above big loop but applied to index buffer, thus
- * loop until we exceed valid memory (corruption case) or until we
- * reach the last entry.
- */
- for (;; ie = (INDEX_ENTRY*)((u8*)ie + le16_to_cpu(ie->length))) {
- /* Bounds checks. */
- if ((u8*)ie < (u8*)ia || (u8*)ie +
- sizeof(INDEX_ENTRY_HEADER) > index_end ||
- (u8*)ie + le16_to_cpu(ie->length) > index_end) {
- ntfs_error(sb, "Index entry out of bounds in inode "
- "0x%lx.", idx_ni->mft_no);
- err = -EIO;
- goto unm_err_out;
- }
- /*
- * The last entry cannot contain a ket. It can however contain
- * a pointer to a child node in the B+tree so we just break out.
- */
- if (ie->flags & INDEX_ENTRY_END)
- break;
- /* Further bounds checks. */
- if ((u32)sizeof(INDEX_ENTRY_HEADER) +
- le16_to_cpu(ie->key_length) >
- le16_to_cpu(ie->data.vi.data_offset) ||
- (u32)le16_to_cpu(ie->data.vi.data_offset) +
- le16_to_cpu(ie->data.vi.data_length) >
- le16_to_cpu(ie->length)) {
- ntfs_error(sb, "Index entry out of bounds in inode "
- "0x%lx.", idx_ni->mft_no);
- err = -EIO;
- goto unm_err_out;
- }
- /* If the keys match perfectly, we setup @ictx and return 0. */
- if ((key_len == le16_to_cpu(ie->key_length)) && !memcmp(key,
- &ie->key, key_len)) {
-ia_done:
- ictx->is_in_root = FALSE;
- ictx->actx = NULL;
- ictx->base_ni = NULL;
- ictx->ia = ia;
- ictx->page = page;
- goto done;
- }
- /*
- * Not a perfect match, need to do full blown collation so we
- * know which way in the B+tree we have to go.
- */
- rc = ntfs_collate(vol, idx_ni->itype.index.collation_rule, key,
- key_len, &ie->key, le16_to_cpu(ie->key_length));
- /*
- * If @key collates before the key of the current entry, there
- * is definitely no such key in this index but we might need to
- * descend into the B+tree so we just break out of the loop.
- */
- if (rc == -1)
- break;
- /*
- * A match should never happen as the memcmp() call should have
- * cought it, but we still treat it correctly.
- */
- if (!rc)
- goto ia_done;
- /* The keys are not equal, continue the search. */
- }
- /*
- * We have finished with this index buffer without success. Check for
- * the presence of a child node and if not present return -ENOENT.
- */
- if (!(ie->flags & INDEX_ENTRY_NODE)) {
- ntfs_debug("Entry not found.");
- err = -ENOENT;
- goto ia_done;
- }
- if ((ia->index.flags & NODE_MASK) == LEAF_NODE) {
- ntfs_error(sb, "Index entry with child node found in a leaf "
- "node in inode 0x%lx.", idx_ni->mft_no);
- err = -EIO;
- goto unm_err_out;
- }
- /* Child node present, descend into it. */
- old_vcn = vcn;
- vcn = sle64_to_cpup((u8*)ie + le16_to_cpu(ie->length) - 8);
- if (vcn >= 0) {
- /*
- * If vcn is in the same page cache page as old_vcn we recycle
- * the mapped page.
- */
- if (old_vcn << vol->cluster_size_bits >>
- PAGE_CACHE_SHIFT == vcn <<
- vol->cluster_size_bits >>
- PAGE_CACHE_SHIFT)
- goto fast_descend_into_child_node;
- unlock_page(page);
- ntfs_unmap_page(page);
- goto descend_into_child_node;
- }
- ntfs_error(sb, "Negative child node vcn in inode 0x%lx.",
- idx_ni->mft_no);
- err = -EIO;
-unm_err_out:
- unlock_page(page);
- ntfs_unmap_page(page);
-err_out:
- if (actx)
- put_attr_search_ctx(actx);
- if (m)
- unmap_mft_record(base_ni);
- return err;
-idx_err_out:
- ntfs_error(sb, "Corrupt index. Aborting lookup.");
- err = -EIO;
- goto err_out;
-}
-
-#ifdef NTFS_RW
-
-/**
- * __ntfs_index_entry_mark_dirty - mark an index allocation entry dirty
- * @ictx: ntfs index context describing the index entry
- *
- * NOTE: You want to use fs/ntfs/index.h::ntfs_index_entry_mark_dirty() instead!
- *
- * Mark the index allocation entry described by the index entry context @ictx
- * dirty.
- *
- * The index entry must be in an index block belonging to the index allocation
- * attribute. Mark the buffers belonging to the index record as well as the
- * page cache page the index block is in dirty. This automatically marks the
- * VFS inode of the ntfs index inode to which the index entry belongs dirty,
- * too (I_DIRTY_PAGES) and this in turn ensures the page buffers, and hence the
- * dirty index block, will be written out to disk later.
- */
-void __ntfs_index_entry_mark_dirty(ntfs_index_context *ictx)
-{
- ntfs_inode *ni;
- struct page *page;
- struct buffer_head *bh, *head;
- unsigned int rec_start, rec_end, bh_size, bh_start, bh_end;
-
- BUG_ON(ictx->is_in_root);
- ni = ictx->idx_ni;
- page = ictx->page;
- BUG_ON(!page_has_buffers(page));
- /*
- * If the index block is the same size as the page cache page, set all
- * the buffers in the page, as well as the page itself, dirty.
- */
- if (ni->itype.index.block_size == PAGE_CACHE_SIZE) {
- __set_page_dirty_buffers(page);
- return;
- }
- /* Set only the buffers in which the index block is located dirty. */
- rec_start = (unsigned int)((u8*)ictx->ia - (u8*)page_address(page));
- rec_end = rec_start + ni->itype.index.block_size;
- bh_size = ni->vol->sb->s_blocksize;
- bh_start = 0;
- bh = head = page_buffers(page);
- do {
- bh_end = bh_start + bh_size;
- if ((bh_start >= rec_start) && (bh_end <= rec_end))
- set_buffer_dirty(bh);
- bh_start = bh_end;
- } while ((bh = bh->b_this_page) != head);
- /* Finally, set the page itself dirty, too. */
- __set_page_dirty_nobuffers(page);
-}
-
-#endif /* NTFS_RW */
+++ /dev/null
-/*
- * index.h - Defines for NTFS kernel index handling. Part of the Linux-NTFS
- * project.
- *
- * Copyright (c) 2004 Anton Altaparmakov
- *
- * This program/include file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program/include file is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (in the main directory of the Linux-NTFS
- * distribution in the file COPYING); if not, write to the Free Software
- * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _LINUX_NTFS_INDEX_H
-#define _LINUX_NTFS_INDEX_H
-
-#include <linux/fs.h>
-
-#include "types.h"
-#include "layout.h"
-#include "inode.h"
-#include "attrib.h"
-#include "mft.h"
-
-/**
- * @idx_ni: index inode containing the @entry described by this context
- * @entry: index entry (points into @ir or @ia)
- * @data: index entry data (points into @entry)
- * @data_len: length in bytes of @data
- * @is_in_root: TRUE if @entry is in @ir and FALSE if it is in @ia
- * @ir: index root if @is_in_root and NULL otherwise
- * @actx: attribute search context if @is_in_root and NULL otherwise
- * @base_ni: base inode if @is_in_root and NULL otherwise
- * @ia: index block if @is_in_root is FALSE and NULL otherwise
- * @page: page if @is_in_root is FALSE and NULL otherwise
- *
- * @idx_ni is the index inode this context belongs to.
- *
- * @entry is the index entry described by this context. @data and @data_len
- * are the index entry data and its length in bytes, respectively. @data
- * simply points into @entry. This is probably what the user is interested in.
- *
- * If @is_in_root is TRUE, @entry is in the index root attribute @ir described
- * by the attribute search context @actx and the base inode @base_ni. @ia and
- * @page are NULL in this case.
- *
- * If @is_in_root is FALSE, @entry is in the index allocation attribute and @ia
- * and @page point to the index allocation block and the mapped, locked page it
- * is in, respectively. @ir, @actx and @base_ni are NULL in this case.
- *
- * To obtain a context call ntfs_index_ctx_get().
- *
- * We use this context to allow ntfs_index_lookup() to return the found index
- * @entry and its @data without having to allocate a buffer and copy the @entry
- * and/or its @data into it.
- *
- * When finished with the @entry and its @data, call ntfs_index_ctx_put() to
- * free the context and other associated resources.
- *
- * If the index entry was modified, call flush_dcache_index_entry_page()
- * immediately after the modification and either ntfs_index_entry_mark_dirty()
- * or ntfs_index_entry_write() before the call to ntfs_index_ctx_put() to
- * ensure that the changes are written to disk.
- */
-typedef struct {
- ntfs_inode *idx_ni;
- INDEX_ENTRY *entry;
- void *data;
- u16 data_len;
- BOOL is_in_root;
- INDEX_ROOT *ir;
- attr_search_context *actx;
- ntfs_inode *base_ni;
- INDEX_ALLOCATION *ia;
- struct page *page;
-} ntfs_index_context;
-
-extern ntfs_index_context *ntfs_index_ctx_get(ntfs_inode *idx_ni);
-extern void ntfs_index_ctx_put(ntfs_index_context *ictx);
-
-extern int ntfs_index_lookup(const void *key, const int key_len,
- ntfs_index_context *ictx);
-
-#ifdef NTFS_RW
-
-/**
- * ntfs_index_entry_flush_dcache_page - flush_dcache_page() for index entries
- * @ictx: ntfs index context describing the index entry
- *
- * Call flush_dcache_page() for the page in which an index entry resides.
- *
- * This must be called every time an index entry is modified, just after the
- * modification.
- *
- * If the index entry is in the index root attribute, simply flush the page
- * containing the mft record containing the index root attribute.
- *
- * If the index entry is in an index block belonging to the index allocation
- * attribute, simply flush the page cache page containing the index block.
- */
-static inline void ntfs_index_entry_flush_dcache_page(ntfs_index_context *ictx)
-{
- if (ictx->is_in_root)
- flush_dcache_mft_record_page(ictx->actx->ntfs_ino);
- else
- flush_dcache_page(ictx->page);
-}
-
-extern void __ntfs_index_entry_mark_dirty(ntfs_index_context *ictx);
-
-/**
- * ntfs_index_entry_mark_dirty - mark an index entry dirty
- * @ictx: ntfs index context describing the index entry
- *
- * Mark the index entry described by the index entry context @ictx dirty.
- *
- * If the index entry is in the index root attribute, simply mark the mft
- * record containing the index root attribute dirty. This ensures the mft
- * record, and hence the index root attribute, will be written out to disk
- * later.
- *
- * If the index entry is in an index block belonging to the index allocation
- * attribute, mark the buffers belonging to the index record as well as the
- * page cache page the index block is in dirty. This automatically marks the
- * VFS inode of the ntfs index inode to which the index entry belongs dirty,
- * too (I_DIRTY_PAGES) and this in turn ensures the page buffers, and hence the
- * dirty index block, will be written out to disk later.
- */
-static inline void ntfs_index_entry_mark_dirty(ntfs_index_context *ictx)
-{
- if (ictx->is_in_root)
- mark_mft_record_dirty(ictx->actx->ntfs_ino);
- else
- __ntfs_index_entry_mark_dirty(ictx);
-}
-
-#endif /* NTFS_RW */
-
-#endif /* _LINUX_NTFS_INDEX_H */
+++ /dev/null
-/*
- * quota.c - NTFS kernel quota ($Quota) handling. Part of the Linux-NTFS
- * project.
- *
- * Copyright (c) 2004 Anton Altaparmakov
- *
- * This program/include file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program/include file is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (in the main directory of the Linux-NTFS
- * distribution in the file COPYING); if not, write to the Free Software
- * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifdef NTFS_RW
-
-#include "ntfs.h"
-#include "index.h"
-#include "quota.h"
-
-/**
- * ntfs_mark_quotas_out_of_date - mark the quotas out of date on an ntfs volume
- * @vol: ntfs volume on which to mark the quotas out of date
- *
- * Mark the quotas out of date on the ntfs volume @vol and return TRUE on
- * success and FALSE on error.
- */
-BOOL ntfs_mark_quotas_out_of_date(ntfs_volume *vol)
-{
- ntfs_index_context *ictx;
- QUOTA_CONTROL_ENTRY *qce;
- const u32 qid = QUOTA_DEFAULTS_ID;
- int err;
-
- ntfs_debug("Entering.");
- if (NVolQuotaOutOfDate(vol))
- goto done;
- if (!vol->quota_ino || !vol->quota_q_ino) {
- ntfs_error(vol->sb, "Quota inodes are not open.");
- return FALSE;
- }
- down(&vol->quota_q_ino->i_sem);
- ictx = ntfs_index_ctx_get(NTFS_I(vol->quota_q_ino));
- if (!ictx) {
- ntfs_error(vol->sb, "Failed to get index context.");
- return FALSE;
- }
- err = ntfs_index_lookup(&qid, sizeof(qid), ictx);
- if (err) {
- if (err == -ENOENT)
- ntfs_error(vol->sb, "Quota defaults entry is not "
- "present.");
- else
- ntfs_error(vol->sb, "Lookup of quota defaults entry "
- "failed.");
- goto err_out;
- }
- if (ictx->data_len < offsetof(QUOTA_CONTROL_ENTRY, sid)) {
- ntfs_error(vol->sb, "Quota defaults entry size is invalid. "
- "Run chkdsk.");
- goto err_out;
- }
- qce = (QUOTA_CONTROL_ENTRY*)ictx->data;
- if (le32_to_cpu(qce->version) != QUOTA_VERSION) {
- ntfs_error(vol->sb, "Quota defaults entry version 0x%x is not "
- "supported.", le32_to_cpu(qce->version));
- goto err_out;
- }
- ntfs_debug("Quota defaults flags = 0x%x.", le32_to_cpu(qce->flags));
- /* If quotas are already marked out of date, no need to do anything. */
- if (qce->flags & QUOTA_FLAG_OUT_OF_DATE)
- goto set_done;
- /*
- * If quota tracking is neither requested, nor enabled and there are no
- * pending deletes, no need to mark the quotas out of date.
- */
- if (!(qce->flags & (QUOTA_FLAG_TRACKING_ENABLED |
- QUOTA_FLAG_TRACKING_REQUESTED |
- QUOTA_FLAG_PENDING_DELETES)))
- goto set_done;
- /*
- * Set the QUOTA_FLAG_OUT_OF_DATE bit thus marking quotas out of date.
- * This is verified on WinXP to be sufficient to cause windows to
- * rescan the volume on boot and update all quota entries.
- */
- qce->flags |= QUOTA_FLAG_OUT_OF_DATE;
- /* Ensure the modified flags are written to disk. */
- ntfs_index_entry_flush_dcache_page(ictx);
- ntfs_index_entry_mark_dirty(ictx);
-set_done:
- ntfs_index_ctx_put(ictx);
- up(&vol->quota_q_ino->i_sem);
- /*
- * We set the flag so we do not try to mark the quotas out of date
- * again on remount.
- */
- NVolSetQuotaOutOfDate(vol);
-done:
- ntfs_debug("Done.");
- return TRUE;
-err_out:
- ntfs_index_ctx_put(ictx);
- up(&vol->quota_q_ino->i_sem);
- return FALSE;
-}
-
-#endif /* NTFS_RW */
+++ /dev/null
-/*
- * quota.h - Defines for NTFS kernel quota ($Quota) handling. Part of the
- * Linux-NTFS project.
- *
- * Copyright (c) 2004 Anton Altaparmakov
- *
- * This program/include file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program/include file is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (in the main directory of the Linux-NTFS
- * distribution in the file COPYING); if not, write to the Free Software
- * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _LINUX_NTFS_QUOTA_H
-#define _LINUX_NTFS_QUOTA_H
-
-#ifdef NTFS_RW
-
-#include "types.h"
-#include "volume.h"
-
-extern BOOL ntfs_mark_quotas_out_of_date(ntfs_volume *vol);
-
-#endif /* NTFS_RW */
-
-#endif /* _LINUX_NTFS_QUOTA_H */
+++ /dev/null
-/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/highmem.h>
-#include <linux/swap.h>
-
-#include "time.h"
-#include "kmem.h"
-
-#define MAX_VMALLOCS 6
-#define MAX_SLAB_SIZE 0x20000
-
-
-void *
-kmem_alloc(size_t size, int flags)
-{
- int retries = 0, lflags = kmem_flags_convert(flags);
- void *ptr;
-
- do {
- if (size < MAX_SLAB_SIZE || retries > MAX_VMALLOCS)
- ptr = kmalloc(size, lflags);
- else
- ptr = __vmalloc(size, lflags, PAGE_KERNEL);
- if (ptr || (flags & (KM_MAYFAIL|KM_NOSLEEP)))
- return ptr;
- if (!(++retries % 100))
- printk(KERN_ERR "possible deadlock in %s (mode:0x%x)\n",
- __FUNCTION__, lflags);
- } while (1);
-}
-
-void *
-kmem_zalloc(size_t size, int flags)
-{
- void *ptr;
-
- ptr = kmem_alloc(size, flags);
- if (ptr)
- memset((char *)ptr, 0, (int)size);
- return ptr;
-}
-
-void
-kmem_free(void *ptr, size_t size)
-{
- if (((unsigned long)ptr < VMALLOC_START) ||
- ((unsigned long)ptr >= VMALLOC_END)) {
- kfree(ptr);
- } else {
- vfree(ptr);
- }
-}
-
-void *
-kmem_realloc(void *ptr, size_t newsize, size_t oldsize, int flags)
-{
- void *new;
-
- new = kmem_alloc(newsize, flags);
- if (ptr) {
- if (new)
- memcpy(new, ptr,
- ((oldsize < newsize) ? oldsize : newsize));
- kmem_free(ptr, oldsize);
- }
- return new;
-}
-
-void *
-kmem_zone_alloc(kmem_zone_t *zone, int flags)
-{
- int retries = 0, lflags = kmem_flags_convert(flags);
- void *ptr;
-
- do {
- ptr = kmem_cache_alloc(zone, lflags);
- if (ptr || (flags & (KM_MAYFAIL|KM_NOSLEEP)))
- return ptr;
- if (!(++retries % 100))
- printk(KERN_ERR "possible deadlock in %s (mode:0x%x)\n",
- __FUNCTION__, lflags);
- } while (1);
-}
-
-void *
-kmem_zone_zalloc(kmem_zone_t *zone, int flags)
-{
- void *ptr;
-
- ptr = kmem_zone_alloc(zone, flags);
- if (ptr)
- memset((char *)ptr, 0, kmem_cache_size(zone));
- return ptr;
-}
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUPPORT_KMEM_H__
-#define __XFS_SUPPORT_KMEM_H__
-
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-/*
- * Cutoff point to use vmalloc instead of kmalloc.
- */
-#define MAX_SLAB_SIZE 0x10000
-
-/*
- * XFS uses slightly different names for these due to the
- * IRIX heritage.
- */
-#define kmem_zone kmem_cache_s
-#define kmem_zone_t kmem_cache_t
-
-#define KM_SLEEP 0x0001
-#define KM_NOSLEEP 0x0002
-#define KM_NOFS 0x0004
-
-typedef unsigned long xfs_pflags_t;
-
-#define PFLAGS_TEST_FSTRANS() (current->flags & PF_FSTRANS)
-
-/* these could be nested, so we save state */
-#define PFLAGS_SET_FSTRANS(STATEP) do { \
- *(STATEP) = current->flags; \
- current->flags |= PF_FSTRANS; \
-} while (0)
-
-#define PFLAGS_CLEAR_FSTRANS(STATEP) do { \
- *(STATEP) = current->flags; \
- current->flags &= ~PF_FSTRANS; \
-} while (0)
-
-/* Restore the PF_FSTRANS state to what was saved in STATEP */
-#define PFLAGS_RESTORE_FSTRANS(STATEP) do { \
- current->flags = ((current->flags & ~PF_FSTRANS) | \
- (*(STATEP) & PF_FSTRANS)); \
-} while (0)
-
-#define PFLAGS_DUP(OSTATEP, NSTATEP) do { \
- *(NSTATEP) = *(OSTATEP); \
-} while (0)
-
-/*
- * XXX get rid of the unconditional __GFP_NOFAIL by adding
- * a KM_FAIL flag and using it where we're allowed to fail.
- */
-static __inline unsigned int
-kmem_flags_convert(int flags)
-{
- int lflags;
-
-#if DEBUG
- if (unlikely(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS))) {
- printk(KERN_WARNING
- "XFS: memory allocation with wrong flags (%x)\n", flags);
- BUG();
- }
-#endif
-
- lflags = (flags & KM_NOSLEEP) ? GFP_ATOMIC : (GFP_KERNEL|__GFP_NOFAIL);
-
- /* avoid recusive callbacks to filesystem during transactions */
- if (PFLAGS_TEST_FSTRANS() || (flags & KM_NOFS))
- lflags &= ~__GFP_FS;
-
- return lflags;
-}
-
-static __inline void *
-kmem_alloc(size_t size, int flags)
-{
- if (unlikely(MAX_SLAB_SIZE < size))
- /* Avoid doing filesystem sensitive stuff to get this */
- return __vmalloc(size, kmem_flags_convert(flags), PAGE_KERNEL);
- return kmalloc(size, kmem_flags_convert(flags));
-}
-
-static __inline void *
-kmem_zalloc(size_t size, int flags)
-{
- void *ptr = kmem_alloc(size, flags);
- if (likely(ptr != NULL))
- memset(ptr, 0, size);
- return ptr;
-}
-
-static __inline void
-kmem_free(void *ptr, size_t size)
-{
- if (unlikely((unsigned long)ptr < VMALLOC_START ||
- (unsigned long)ptr >= VMALLOC_END))
- kfree(ptr);
- else
- vfree(ptr);
-}
-
-static __inline void *
-kmem_realloc(void *ptr, size_t newsize, size_t oldsize, int flags)
-{
- void *new = kmem_alloc(newsize, flags);
-
- if (likely(ptr != NULL)) {
- if (likely(new != NULL))
- memcpy(new, ptr, min(oldsize, newsize));
- kmem_free(ptr, oldsize);
- }
-
- return new;
-}
-
-static __inline kmem_zone_t *
-kmem_zone_init(int size, char *zone_name)
-{
- return kmem_cache_create(zone_name, size, 0, 0, NULL, NULL);
-}
-
-static __inline void *
-kmem_zone_alloc(kmem_zone_t *zone, int flags)
-{
- return kmem_cache_alloc(zone, kmem_flags_convert(flags));
-}
-
-static __inline void *
-kmem_zone_zalloc(kmem_zone_t *zone, int flags)
-{
- void *ptr = kmem_zone_alloc(zone, flags);
- if (likely(ptr != NULL))
- memset(ptr, 0, kmem_cache_size(zone));
- return ptr;
-}
-
-static __inline void
-kmem_zone_free(kmem_zone_t *zone, void *ptr)
-{
- kmem_cache_free(zone, ptr);
-}
-
-typedef struct shrinker *kmem_shaker_t;
-typedef int (*kmem_shake_func_t)(int, unsigned int);
-
-static __inline kmem_shaker_t
-kmem_shake_register(kmem_shake_func_t sfunc)
-{
- return set_shrinker(DEFAULT_SEEKS, sfunc);
-}
-
-static __inline void
-kmem_shake_deregister(kmem_shaker_t shrinker)
-{
- remove_shrinker(shrinker);
-}
-
-static __inline int
-kmem_shake_allow(unsigned int gfp_mask)
-{
- return (gfp_mask & __GFP_WAIT);
-}
-
-#endif /* __XFS_SUPPORT_KMEM_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUPPORT_MRLOCK_H__
-#define __XFS_SUPPORT_MRLOCK_H__
-
-#include <linux/rwsem.h>
-
-enum { MR_NONE, MR_ACCESS, MR_UPDATE };
-
-typedef struct {
- struct rw_semaphore mr_lock;
- int mr_writer;
-} mrlock_t;
-
-#define mrinit(mrp, name) \
- ( (mrp)->mr_writer = 0, init_rwsem(&(mrp)->mr_lock) )
-#define mrlock_init(mrp, t,n,s) mrinit(mrp, n)
-#define mrfree(mrp) do { } while (0)
-#define mraccess(mrp) mraccessf(mrp, 0)
-#define mrupdate(mrp) mrupdatef(mrp, 0)
-
-static inline void mraccessf(mrlock_t *mrp, int flags)
-{
- down_read(&mrp->mr_lock);
-}
-
-static inline void mrupdatef(mrlock_t *mrp, int flags)
-{
- down_write(&mrp->mr_lock);
- mrp->mr_writer = 1;
-}
-
-static inline int mrtryaccess(mrlock_t *mrp)
-{
- return down_read_trylock(&mrp->mr_lock);
-}
-
-static inline int mrtryupdate(mrlock_t *mrp)
-{
- if (!down_write_trylock(&mrp->mr_lock))
- return 0;
- mrp->mr_writer = 1;
- return 1;
-}
-
-static inline void mrunlock(mrlock_t *mrp)
-{
- if (mrp->mr_writer) {
- mrp->mr_writer = 0;
- up_write(&mrp->mr_lock);
- } else {
- up_read(&mrp->mr_lock);
- }
-}
-
-static inline void mrdemote(mrlock_t *mrp)
-{
- mrp->mr_writer = 0;
- downgrade_write(&mrp->mr_lock);
-}
-
-#ifdef DEBUG
-/*
- * Debug-only routine, without some platform-specific asm code, we can
- * now only answer requests regarding whether we hold the lock for write
- * (reader state is outside our visibility, we only track writer state).
- * Note: means !ismrlocked would give false positivies, so don't do that.
- */
-static inline int ismrlocked(mrlock_t *mrp, int type)
-{
- if (mrp && type == MR_UPDATE)
- return mrp->mr_writer;
- return 1;
-}
-#endif
-
-#endif /* __XFS_SUPPORT_MRLOCK_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUPPORT_MUTEX_H__
-#define __XFS_SUPPORT_MUTEX_H__
-
-#include <linux/spinlock.h>
-#include <asm/semaphore.h>
-
-/*
- * Map the mutex'es from IRIX to Linux semaphores.
- *
- * Destroy just simply initializes to -99 which should block all other
- * callers.
- */
-#define MUTEX_DEFAULT 0x0
-typedef struct semaphore mutex_t;
-
-#define mutex_init(lock, type, name) sema_init(lock, 1)
-#define mutex_destroy(lock) sema_init(lock, -99)
-#define mutex_lock(lock, num) down(lock)
-#define mutex_trylock(lock) (down_trylock(lock) ? 0 : 1)
-#define mutex_unlock(lock) up(lock)
-
-#endif /* __XFS_SUPPORT_MUTEX_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUPPORT_SEMA_H__
-#define __XFS_SUPPORT_SEMA_H__
-
-#include <linux/time.h>
-#include <linux/wait.h>
-#include <asm/atomic.h>
-#include <asm/semaphore.h>
-
-/*
- * sema_t structure just maps to struct semaphore in Linux kernel.
- */
-
-typedef struct semaphore sema_t;
-
-#define init_sema(sp, val, c, d) sema_init(sp, val)
-#define initsema(sp, val) sema_init(sp, val)
-#define initnsema(sp, val, name) sema_init(sp, val)
-#define psema(sp, b) down(sp)
-#define vsema(sp) up(sp)
-#define valusema(sp) (atomic_read(&(sp)->count))
-#define freesema(sema)
-
-/*
- * Map cpsema (try to get the sema) to down_trylock. We need to switch
- * the return values since cpsema returns 1 (acquired) 0 (failed) and
- * down_trylock returns the reverse 0 (acquired) 1 (failed).
- */
-
-#define cpsema(sp) (down_trylock(sp) ? 0 : 1)
-
-/*
- * Didn't do cvsema(sp). Not sure how to map this to up/down/...
- * It does a vsema if the values is < 0 other wise nothing.
- */
-
-#endif /* __XFS_SUPPORT_SEMA_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUPPORT_SPIN_H__
-#define __XFS_SUPPORT_SPIN_H__
-
-#include <linux/sched.h> /* preempt needs this */
-#include <linux/spinlock.h>
-
-/*
- * Map lock_t from IRIX to Linux spinlocks.
- *
- * Note that linux turns on/off spinlocks depending on CONFIG_SMP.
- * We don't need to worry about SMP or not here.
- */
-
-#define SPLDECL(s) unsigned long s
-
-typedef spinlock_t lock_t;
-
-#define spinlock_init(lock, name) spin_lock_init(lock)
-#define spinlock_destroy(lock)
-
-static inline unsigned long mutex_spinlock(lock_t *lock)
-{
- spin_lock(lock);
- return 0;
-}
-
-/*ARGSUSED*/
-static inline void mutex_spinunlock(lock_t *lock, unsigned long s)
-{
- spin_unlock(lock);
-}
-
-static inline void nested_spinlock(lock_t *lock)
-{
- spin_lock(lock);
-}
-
-static inline void nested_spinunlock(lock_t *lock)
-{
- spin_unlock(lock);
-}
-
-#endif /* __XFS_SUPPORT_SPIN_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUPPORT_SV_H__
-#define __XFS_SUPPORT_SV_H__
-
-#include <linux/wait.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-
-/*
- * Synchronisation variables.
- *
- * (Parameters "pri", "svf" and "rts" are not implemented)
- */
-
-typedef struct sv_s {
- wait_queue_head_t waiters;
-} sv_t;
-
-#define SV_FIFO 0x0 /* sv_t is FIFO type */
-#define SV_LIFO 0x2 /* sv_t is LIFO type */
-#define SV_PRIO 0x4 /* sv_t is PRIO type */
-#define SV_KEYED 0x6 /* sv_t is KEYED type */
-#define SV_DEFAULT SV_FIFO
-
-
-static inline void _sv_wait(sv_t *sv, spinlock_t *lock, int state,
- unsigned long timeout)
-{
- DECLARE_WAITQUEUE(wait, current);
-
- add_wait_queue_exclusive(&sv->waiters, &wait);
- __set_current_state(state);
- spin_unlock(lock);
-
- schedule_timeout(timeout);
-
- remove_wait_queue(&sv->waiters, &wait);
-}
-
-#define init_sv(sv,type,name,flag) \
- init_waitqueue_head(&(sv)->waiters)
-#define sv_init(sv,flag,name) \
- init_waitqueue_head(&(sv)->waiters)
-#define sv_destroy(sv) \
- /*NOTHING*/
-#define sv_wait(sv, pri, lock, s) \
- _sv_wait(sv, lock, TASK_UNINTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT)
-#define sv_wait_sig(sv, pri, lock, s) \
- _sv_wait(sv, lock, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT)
-#define sv_timedwait(sv, pri, lock, s, svf, ts, rts) \
- _sv_wait(sv, lock, TASK_UNINTERRUPTIBLE, timespec_to_jiffies(ts))
-#define sv_timedwait_sig(sv, pri, lock, s, svf, ts, rts) \
- _sv_wait(sv, lock, TASK_INTERRUPTIBLE, timespec_to_jiffies(ts))
-#define sv_signal(sv) \
- wake_up(&(sv)->waiters)
-#define sv_broadcast(sv) \
- wake_up_all(&(sv)->waiters)
-
-#endif /* __XFS_SUPPORT_SV_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUPPORT_TIME_H__
-#define __XFS_SUPPORT_TIME_H__
-
-#include <linux/sched.h>
-#include <linux/time.h>
-
-typedef struct timespec timespec_t;
-
-static inline void delay(long ticks)
-{
- current->state = TASK_UNINTERRUPTIBLE;
- schedule_timeout(ticks);
-}
-
-static inline void nanotime(struct timespec *tvp)
-{
- *tvp = CURRENT_TIME;
-}
-
-#endif /* __XFS_SUPPORT_TIME_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-#include "xfs_inum.h"
-#include "xfs_log.h"
-#include "xfs_sb.h"
-#include "xfs_dir.h"
-#include "xfs_dir2.h"
-#include "xfs_trans.h"
-#include "xfs_dmapi.h"
-#include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir_sf.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
-#include "xfs_error.h"
-#include "xfs_rw.h"
-#include "xfs_iomap.h"
-#include <linux/mpage.h>
-
-STATIC void xfs_count_page_state(struct page *, int *, int *, int *);
-STATIC void xfs_convert_page(struct inode *, struct page *,
- xfs_iomap_t *, void *, int, int);
-
-#if defined(XFS_RW_TRACE)
-void
-xfs_page_trace(
- int tag,
- struct inode *inode,
- struct page *page,
- int mask)
-{
- xfs_inode_t *ip;
- bhv_desc_t *bdp;
- vnode_t *vp = LINVFS_GET_VP(inode);
- loff_t isize = i_size_read(inode);
- loff_t offset = page->index << PAGE_CACHE_SHIFT;
- int delalloc = -1, unmapped = -1, unwritten = -1;
-
- if (page_has_buffers(page))
- xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
-
- bdp = vn_bhv_lookup(VN_BHV_HEAD(vp), &xfs_vnodeops);
- ip = XFS_BHVTOI(bdp);
- if (!ip->i_rwtrace)
- return;
-
- ktrace_enter(ip->i_rwtrace,
- (void *)((unsigned long)tag),
- (void *)ip,
- (void *)inode,
- (void *)page,
- (void *)((unsigned long)mask),
- (void *)((unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff)),
- (void *)((unsigned long)(ip->i_d.di_size & 0xffffffff)),
- (void *)((unsigned long)((isize >> 32) & 0xffffffff)),
- (void *)((unsigned long)(isize & 0xffffffff)),
- (void *)((unsigned long)((offset >> 32) & 0xffffffff)),
- (void *)((unsigned long)(offset & 0xffffffff)),
- (void *)((unsigned long)delalloc),
- (void *)((unsigned long)unmapped),
- (void *)((unsigned long)unwritten),
- (void *)NULL,
- (void *)NULL);
-}
-#else
-#define xfs_page_trace(tag, inode, page, mask)
-#endif
-
-void
-linvfs_unwritten_done(
- struct buffer_head *bh,
- int uptodate)
-{
- xfs_buf_t *pb = (xfs_buf_t *)bh->b_private;
-
- ASSERT(buffer_unwritten(bh));
- bh->b_end_io = NULL;
- clear_buffer_unwritten(bh);
- if (!uptodate)
- pagebuf_ioerror(pb, EIO);
- if (atomic_dec_and_test(&pb->pb_io_remaining) == 1) {
- pagebuf_iodone(pb, 1, 1);
- }
- end_buffer_async_write(bh, uptodate);
-}
-
-/*
- * Issue transactions to convert a buffer range from unwritten
- * to written extents (buffered IO).
- */
-STATIC void
-linvfs_unwritten_convert(
- xfs_buf_t *bp)
-{
- vnode_t *vp = XFS_BUF_FSPRIVATE(bp, vnode_t *);
- int error;
-
- BUG_ON(atomic_read(&bp->pb_hold) < 1);
- VOP_BMAP(vp, XFS_BUF_OFFSET(bp), XFS_BUF_SIZE(bp),
- BMAPI_UNWRITTEN, NULL, NULL, error);
- XFS_BUF_SET_FSPRIVATE(bp, NULL);
- XFS_BUF_CLR_IODONE_FUNC(bp);
- XFS_BUF_UNDATAIO(bp);
- iput(LINVFS_GET_IP(vp));
- pagebuf_iodone(bp, 0, 0);
-}
-
-/*
- * Issue transactions to convert a buffer range from unwritten
- * to written extents (direct IO).
- */
-STATIC void
-linvfs_unwritten_convert_direct(
- struct inode *inode,
- loff_t offset,
- ssize_t size,
- void *private)
-{
- ASSERT(!private || inode == (struct inode *)private);
-
- /* private indicates an unwritten extent lay beneath this IO,
- * see linvfs_get_block_core.
- */
- if (private && size > 0) {
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error;
-
- VOP_BMAP(vp, offset, size, BMAPI_UNWRITTEN, NULL, NULL, error);
- }
-}
-
-STATIC int
-xfs_map_blocks(
- struct inode *inode,
- loff_t offset,
- ssize_t count,
- xfs_iomap_t *iomapp,
- int flags)
-{
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error, niomaps = 1;
-
- if (((flags & (BMAPI_DIRECT|BMAPI_SYNC)) == BMAPI_DIRECT) &&
- (offset >= i_size_read(inode)))
- count = max_t(ssize_t, count, XFS_WRITE_IO_LOG);
-retry:
- VOP_BMAP(vp, offset, count, flags, iomapp, &niomaps, error);
- if ((error == EAGAIN) || (error == EIO))
- return -error;
- if (unlikely((flags & (BMAPI_WRITE|BMAPI_DIRECT)) ==
- (BMAPI_WRITE|BMAPI_DIRECT) && niomaps &&
- (iomapp->iomap_flags & IOMAP_DELAY))) {
- flags = BMAPI_ALLOCATE;
- goto retry;
- }
- if (flags & (BMAPI_WRITE|BMAPI_ALLOCATE)) {
- VMODIFY(vp);
- }
- return -error;
-}
-
-/*
- * Finds the corresponding mapping in block @map array of the
- * given @offset within a @page.
- */
-STATIC xfs_iomap_t *
-xfs_offset_to_map(
- struct page *page,
- xfs_iomap_t *iomapp,
- unsigned long offset)
-{
- loff_t full_offset; /* offset from start of file */
-
- ASSERT(offset < PAGE_CACHE_SIZE);
-
- full_offset = page->index; /* NB: using 64bit number */
- full_offset <<= PAGE_CACHE_SHIFT; /* offset from file start */
- full_offset += offset; /* offset from page start */
-
- if (full_offset < iomapp->iomap_offset)
- return NULL;
- if (iomapp->iomap_offset + iomapp->iomap_bsize > full_offset)
- return iomapp;
- return NULL;
-}
-
-STATIC void
-xfs_map_at_offset(
- struct page *page,
- struct buffer_head *bh,
- unsigned long offset,
- int block_bits,
- xfs_iomap_t *iomapp)
-{
- xfs_daddr_t bn;
- loff_t delta;
- int sector_shift;
-
- ASSERT(!(iomapp->iomap_flags & IOMAP_HOLE));
- ASSERT(!(iomapp->iomap_flags & IOMAP_DELAY));
- ASSERT(iomapp->iomap_bn != IOMAP_DADDR_NULL);
-
- delta = page->index;
- delta <<= PAGE_CACHE_SHIFT;
- delta += offset;
- delta -= iomapp->iomap_offset;
- delta >>= block_bits;
-
- sector_shift = block_bits - BBSHIFT;
- bn = iomapp->iomap_bn >> sector_shift;
- bn += delta;
- ASSERT((bn << sector_shift) >= iomapp->iomap_bn);
-
- lock_buffer(bh);
- bh->b_blocknr = bn;
- bh->b_bdev = iomapp->iomap_target->pbr_bdev;
- set_buffer_mapped(bh);
- clear_buffer_delay(bh);
-}
-
-/*
- * Look for a page at index which is unlocked and contains our
- * unwritten extent flagged buffers at its head. Returns page
- * locked and with an extra reference count, and length of the
- * unwritten extent component on this page that we can write,
- * in units of filesystem blocks.
- */
-STATIC struct page *
-xfs_probe_unwritten_page(
- struct address_space *mapping,
- pgoff_t index,
- xfs_iomap_t *iomapp,
- xfs_buf_t *pb,
- unsigned long max_offset,
- unsigned long *fsbs,
- unsigned int bbits)
-{
- struct page *page;
-
- page = find_trylock_page(mapping, index);
- if (!page)
- return 0;
- if (PageWriteback(page))
- goto out;
-
- if (page->mapping && page_has_buffers(page)) {
- struct buffer_head *bh, *head;
- unsigned long p_offset = 0;
-
- *fsbs = 0;
- bh = head = page_buffers(page);
- do {
- if (!buffer_unwritten(bh))
- break;
- if (!xfs_offset_to_map(page, iomapp, p_offset))
- break;
- if (p_offset >= max_offset)
- break;
- xfs_map_at_offset(page, bh, p_offset, bbits, iomapp);
- set_buffer_unwritten_io(bh);
- bh->b_private = pb;
- p_offset += bh->b_size;
- (*fsbs)++;
- } while ((bh = bh->b_this_page) != head);
-
- if (p_offset)
- return page;
- }
-
-out:
- unlock_page(page);
- return NULL;
-}
-
-/*
- * Look for a page at index which is unlocked and not mapped
- * yet - clustering for mmap write case.
- */
-STATIC unsigned int
-xfs_probe_unmapped_page(
- struct address_space *mapping,
- pgoff_t index,
- unsigned int pg_offset)
-{
- struct page *page;
- int ret = 0;
-
- page = find_trylock_page(mapping, index);
- if (!page)
- return 0;
- if (PageWriteback(page))
- goto out;
-
- if (page->mapping && PageDirty(page)) {
- if (page_has_buffers(page)) {
- struct buffer_head *bh, *head;
-
- bh = head = page_buffers(page);
- do {
- if (buffer_mapped(bh) || !buffer_uptodate(bh))
- break;
- ret += bh->b_size;
- if (ret >= pg_offset)
- break;
- } while ((bh = bh->b_this_page) != head);
- } else
- ret = PAGE_CACHE_SIZE;
- }
-
-out:
- unlock_page(page);
- return ret;
-}
-
-STATIC unsigned int
-xfs_probe_unmapped_cluster(
- struct inode *inode,
- struct page *startpage,
- struct buffer_head *bh,
- struct buffer_head *head)
-{
- pgoff_t tindex, tlast, tloff;
- unsigned int pg_offset, len, total = 0;
- struct address_space *mapping = inode->i_mapping;
-
- /* First sum forwards in this page */
- do {
- if (buffer_mapped(bh))
- break;
- total += bh->b_size;
- } while ((bh = bh->b_this_page) != head);
-
- /* If we reached the end of the page, sum forwards in
- * following pages.
- */
- if (bh == head) {
- tlast = i_size_read(inode) >> PAGE_CACHE_SHIFT;
- /* Prune this back to avoid pathological behavior */
- tloff = min(tlast, startpage->index + 64);
- for (tindex = startpage->index + 1; tindex < tloff; tindex++) {
- len = xfs_probe_unmapped_page(mapping, tindex,
- PAGE_CACHE_SIZE);
- if (!len)
- return total;
- total += len;
- }
- if (tindex == tlast &&
- (pg_offset = i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) {
- total += xfs_probe_unmapped_page(mapping,
- tindex, pg_offset);
- }
- }
- return total;
-}
-
-/*
- * Probe for a given page (index) in the inode and test if it is delayed
- * and without unwritten buffers. Returns page locked and with an extra
- * reference count.
- */
-STATIC struct page *
-xfs_probe_delalloc_page(
- struct inode *inode,
- pgoff_t index)
-{
- struct page *page;
-
- page = find_trylock_page(inode->i_mapping, index);
- if (!page)
- return NULL;
- if (PageWriteback(page))
- goto out;
-
- if (page->mapping && page_has_buffers(page)) {
- struct buffer_head *bh, *head;
- int acceptable = 0;
-
- bh = head = page_buffers(page);
- do {
- if (buffer_unwritten(bh)) {
- acceptable = 0;
- break;
- } else if (buffer_delay(bh)) {
- acceptable = 1;
- }
- } while ((bh = bh->b_this_page) != head);
-
- if (acceptable)
- return page;
- }
-
-out:
- unlock_page(page);
- return NULL;
-}
-
-STATIC int
-xfs_map_unwritten(
- struct inode *inode,
- struct page *start_page,
- struct buffer_head *head,
- struct buffer_head *curr,
- unsigned long p_offset,
- int block_bits,
- xfs_iomap_t *iomapp,
- int startio,
- int all_bh)
-{
- struct buffer_head *bh = curr;
- xfs_iomap_t *tmp;
- xfs_buf_t *pb;
- loff_t offset, size;
- unsigned long nblocks = 0;
-
- offset = start_page->index;
- offset <<= PAGE_CACHE_SHIFT;
- offset += p_offset;
-
- /* get an "empty" pagebuf to manage IO completion
- * Proper values will be set before returning */
- pb = pagebuf_lookup(iomapp->iomap_target, 0, 0, 0);
- if (!pb)
- return -EAGAIN;
-
- /* Take a reference to the inode to prevent it from
- * being reclaimed while we have outstanding unwritten
- * extent IO on it.
- */
- if ((igrab(inode)) != inode) {
- pagebuf_free(pb);
- return -EAGAIN;
- }
-
- /* Set the count to 1 initially, this will stop an I/O
- * completion callout which happens before we have started
- * all the I/O from calling pagebuf_iodone too early.
- */
- atomic_set(&pb->pb_io_remaining, 1);
-
- /* First map forwards in the page consecutive buffers
- * covering this unwritten extent
- */
- do {
- if (!buffer_unwritten(bh))
- break;
- tmp = xfs_offset_to_map(start_page, iomapp, p_offset);
- if (!tmp)
- break;
- xfs_map_at_offset(start_page, bh, p_offset, block_bits, iomapp);
- set_buffer_unwritten_io(bh);
- bh->b_private = pb;
- p_offset += bh->b_size;
- nblocks++;
- } while ((bh = bh->b_this_page) != head);
-
- atomic_add(nblocks, &pb->pb_io_remaining);
-
- /* If we reached the end of the page, map forwards in any
- * following pages which are also covered by this extent.
- */
- if (bh == head) {
- struct address_space *mapping = inode->i_mapping;
- pgoff_t tindex, tloff, tlast;
- unsigned long bs;
- unsigned int pg_offset, bbits = inode->i_blkbits;
- struct page *page;
-
- tlast = i_size_read(inode) >> PAGE_CACHE_SHIFT;
- tloff = (iomapp->iomap_offset + iomapp->iomap_bsize) >> PAGE_CACHE_SHIFT;
- tloff = min(tlast, tloff);
- for (tindex = start_page->index + 1; tindex < tloff; tindex++) {
- page = xfs_probe_unwritten_page(mapping,
- tindex, iomapp, pb,
- PAGE_CACHE_SIZE, &bs, bbits);
- if (!page)
- break;
- nblocks += bs;
- atomic_add(bs, &pb->pb_io_remaining);
- xfs_convert_page(inode, page, iomapp, pb,
- startio, all_bh);
- /* stop if converting the next page might add
- * enough blocks that the corresponding byte
- * count won't fit in our ulong page buf length */
- if (nblocks >= ((ULONG_MAX - PAGE_SIZE) >> block_bits))
- goto enough;
- }
-
- if (tindex == tlast &&
- (pg_offset = (i_size_read(inode) & (PAGE_CACHE_SIZE - 1)))) {
- page = xfs_probe_unwritten_page(mapping,
- tindex, iomapp, pb,
- pg_offset, &bs, bbits);
- if (page) {
- nblocks += bs;
- atomic_add(bs, &pb->pb_io_remaining);
- xfs_convert_page(inode, page, iomapp, pb,
- startio, all_bh);
- if (nblocks >= ((ULONG_MAX - PAGE_SIZE) >> block_bits))
- goto enough;
- }
- }
- }
-
-enough:
- size = nblocks; /* NB: using 64bit number here */
- size <<= block_bits; /* convert fsb's to byte range */
-
- XFS_BUF_DATAIO(pb);
- XFS_BUF_ASYNC(pb);
- XFS_BUF_SET_SIZE(pb, size);
- XFS_BUF_SET_COUNT(pb, size);
- XFS_BUF_SET_OFFSET(pb, offset);
- XFS_BUF_SET_FSPRIVATE(pb, LINVFS_GET_VP(inode));
- XFS_BUF_SET_IODONE_FUNC(pb, linvfs_unwritten_convert);
-
- if (atomic_dec_and_test(&pb->pb_io_remaining) == 1) {
- pagebuf_iodone(pb, 1, 1);
- }
-
- return 0;
-}
-
-STATIC void
-xfs_submit_page(
- struct page *page,
- struct buffer_head *bh_arr[],
- int cnt)
-{
- struct buffer_head *bh;
- int i;
-
- BUG_ON(PageWriteback(page));
- set_page_writeback(page);
- clear_page_dirty(page);
- unlock_page(page);
-
- if (cnt) {
- for (i = 0; i < cnt; i++) {
- bh = bh_arr[i];
- mark_buffer_async_write(bh);
- if (buffer_unwritten(bh))
- set_buffer_unwritten_io(bh);
- set_buffer_uptodate(bh);
- clear_buffer_dirty(bh);
- }
-
- for (i = 0; i < cnt; i++)
- submit_bh(WRITE, bh_arr[i]);
- } else
- end_page_writeback(page);
-}
-
-/*
- * Allocate & map buffers for page given the extent map. Write it out.
- * except for the original page of a writepage, this is called on
- * delalloc/unwritten pages only, for the original page it is possible
- * that the page has no mapping at all.
- */
-STATIC void
-xfs_convert_page(
- struct inode *inode,
- struct page *page,
- xfs_iomap_t *iomapp,
- void *private,
- int startio,
- int all_bh)
-{
- struct buffer_head *bh_arr[MAX_BUF_PER_PAGE], *bh, *head;
- xfs_iomap_t *mp = iomapp, *tmp;
- unsigned long end, offset;
- pgoff_t end_index;
- int i = 0, index = 0;
- int bbits = inode->i_blkbits;
-
- end_index = i_size_read(inode) >> PAGE_CACHE_SHIFT;
- if (page->index < end_index) {
- end = PAGE_CACHE_SIZE;
- } else {
- end = i_size_read(inode) & (PAGE_CACHE_SIZE-1);
- }
- bh = head = page_buffers(page);
- do {
- offset = i << bbits;
- if (!(PageUptodate(page) || buffer_uptodate(bh)))
- continue;
- if (buffer_mapped(bh) && all_bh &&
- !buffer_unwritten(bh) && !buffer_delay(bh)) {
- if (startio && (offset < end)) {
- lock_buffer(bh);
- bh_arr[index++] = bh;
- }
- continue;
- }
- tmp = xfs_offset_to_map(page, mp, offset);
- if (!tmp)
- continue;
- ASSERT(!(tmp->iomap_flags & IOMAP_HOLE));
- ASSERT(!(tmp->iomap_flags & IOMAP_DELAY));
-
- /* If this is a new unwritten extent buffer (i.e. one
- * that we haven't passed in private data for, we must
- * now map this buffer too.
- */
- if (buffer_unwritten(bh) && !bh->b_end_io) {
- ASSERT(tmp->iomap_flags & IOMAP_UNWRITTEN);
- xfs_map_unwritten(inode, page, head, bh,
- offset, bbits, tmp, startio, all_bh);
- } else if (! (buffer_unwritten(bh) && buffer_locked(bh))) {
- xfs_map_at_offset(page, bh, offset, bbits, tmp);
- if (buffer_unwritten(bh)) {
- set_buffer_unwritten_io(bh);
- bh->b_private = private;
- ASSERT(private);
- }
- }
- if (startio && (offset < end)) {
- bh_arr[index++] = bh;
- } else {
- set_buffer_dirty(bh);
- unlock_buffer(bh);
- mark_buffer_dirty(bh);
- }
- } while (i++, (bh = bh->b_this_page) != head);
-
- if (startio) {
- xfs_submit_page(page, bh_arr, index);
- } else {
- unlock_page(page);
- }
-}
-
-/*
- * Convert & write out a cluster of pages in the same extent as defined
- * by mp and following the start page.
- */
-STATIC void
-xfs_cluster_write(
- struct inode *inode,
- pgoff_t tindex,
- xfs_iomap_t *iomapp,
- int startio,
- int all_bh)
-{
- pgoff_t tlast;
- struct page *page;
-
- tlast = (iomapp->iomap_offset + iomapp->iomap_bsize) >> PAGE_CACHE_SHIFT;
- for (; tindex < tlast; tindex++) {
- page = xfs_probe_delalloc_page(inode, tindex);
- if (!page)
- break;
- xfs_convert_page(inode, page, iomapp, NULL, startio, all_bh);
- }
-}
-
-/*
- * Calling this without startio set means we are being asked to make a dirty
- * page ready for freeing it's buffers. When called with startio set then
- * we are coming from writepage.
- *
- * When called with startio set it is important that we write the WHOLE
- * page if possible.
- * The bh->b_state's cannot know if any of the blocks or which block for
- * that matter are dirty due to mmap writes, and therefore bh uptodate is
- * only vaild if the page itself isn't completely uptodate. Some layers
- * may clear the page dirty flag prior to calling write page, under the
- * assumption the entire page will be written out; by not writing out the
- * whole page the page can be reused before all valid dirty data is
- * written out. Note: in the case of a page that has been dirty'd by
- * mapwrite and but partially setup by block_prepare_write the
- * bh->b_states's will not agree and only ones setup by BPW/BCW will have
- * valid state, thus the whole page must be written out thing.
- */
-
-STATIC int
-xfs_page_state_convert(
- struct inode *inode,
- struct page *page,
- int startio,
- int unmapped) /* also implies page uptodate */
-{
- struct buffer_head *bh_arr[MAX_BUF_PER_PAGE], *bh, *head;
- xfs_iomap_t *iomp, iomap;
- unsigned long p_offset = 0;
- pgoff_t end_index;
- loff_t offset;
- unsigned long long end_offset;
- int len, err, i, cnt = 0, uptodate = 1;
- int flags = startio ? 0 : BMAPI_TRYLOCK;
- int page_dirty = 1;
-
-
- /* Are we off the end of the file ? */
- end_index = i_size_read(inode) >> PAGE_CACHE_SHIFT;
- if (page->index >= end_index) {
- if ((page->index >= end_index + 1) ||
- !(i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) {
- err = -EIO;
- goto error;
- }
- }
-
- offset = (loff_t)page->index << PAGE_CACHE_SHIFT;
- end_offset = min_t(unsigned long long,
- offset + PAGE_CACHE_SIZE, i_size_read(inode));
-
- bh = head = page_buffers(page);
- iomp = NULL;
-
- len = bh->b_size;
- do {
- if (offset >= end_offset)
- break;
- if (!buffer_uptodate(bh))
- uptodate = 0;
- if (!(PageUptodate(page) || buffer_uptodate(bh)) && !startio)
- continue;
-
- if (iomp) {
- iomp = xfs_offset_to_map(page, &iomap, p_offset);
- }
-
- /*
- * First case, map an unwritten extent and prepare for
- * extent state conversion transaction on completion.
- */
- if (buffer_unwritten(bh)) {
- if (!iomp) {
- err = xfs_map_blocks(inode, offset, len, &iomap,
- BMAPI_READ|BMAPI_IGNSTATE);
- if (err) {
- goto error;
- }
- iomp = xfs_offset_to_map(page, &iomap,
- p_offset);
- }
- if (iomp && startio) {
- if (!bh->b_end_io) {
- err = xfs_map_unwritten(inode, page,
- head, bh, p_offset,
- inode->i_blkbits, iomp,
- startio, unmapped);
- if (err) {
- goto error;
- }
- }
- bh_arr[cnt++] = bh;
- page_dirty = 0;
- }
- /*
- * Second case, allocate space for a delalloc buffer.
- * We can return EAGAIN here in the release page case.
- */
- } else if (buffer_delay(bh)) {
- if (!iomp) {
- err = xfs_map_blocks(inode, offset, len, &iomap,
- BMAPI_ALLOCATE | flags);
- if (err) {
- goto error;
- }
- iomp = xfs_offset_to_map(page, &iomap,
- p_offset);
- }
- if (iomp) {
- xfs_map_at_offset(page, bh, p_offset,
- inode->i_blkbits, iomp);
- if (startio) {
- bh_arr[cnt++] = bh;
- } else {
- set_buffer_dirty(bh);
- unlock_buffer(bh);
- mark_buffer_dirty(bh);
- }
- page_dirty = 0;
- }
- } else if ((buffer_uptodate(bh) || PageUptodate(page)) &&
- (unmapped || startio)) {
-
- if (!buffer_mapped(bh)) {
- int size;
-
- /*
- * Getting here implies an unmapped buffer
- * was found, and we are in a path where we
- * need to write the whole page out.
- */
- if (!iomp) {
- size = xfs_probe_unmapped_cluster(
- inode, page, bh, head);
- err = xfs_map_blocks(inode, offset,
- size, &iomap,
- BMAPI_WRITE|BMAPI_MMAP);
- if (err) {
- goto error;
- }
- iomp = xfs_offset_to_map(page, &iomap,
- p_offset);
- }
- if (iomp) {
- xfs_map_at_offset(page,
- bh, p_offset,
- inode->i_blkbits, iomp);
- if (startio) {
- bh_arr[cnt++] = bh;
- } else {
- set_buffer_dirty(bh);
- unlock_buffer(bh);
- mark_buffer_dirty(bh);
- }
- page_dirty = 0;
- }
- } else if (startio) {
- if (buffer_uptodate(bh) &&
- !test_and_set_bit(BH_Lock, &bh->b_state)) {
- bh_arr[cnt++] = bh;
- page_dirty = 0;
- }
- }
- }
- } while (offset += len, p_offset += len,
- ((bh = bh->b_this_page) != head));
-
- if (uptodate && bh == head)
- SetPageUptodate(page);
-
- if (startio)
- xfs_submit_page(page, bh_arr, cnt);
-
- if (iomp)
- xfs_cluster_write(inode, page->index + 1, iomp, startio, unmapped);
-
- return page_dirty;
-
-error:
- for (i = 0; i < cnt; i++) {
- unlock_buffer(bh_arr[i]);
- }
-
- /*
- * If it's delalloc and we have nowhere to put it,
- * throw it away, unless the lower layers told
- * us to try again.
- */
- if (err != -EAGAIN) {
- if (!unmapped) {
- block_invalidatepage(page, 0);
- }
- ClearPageUptodate(page);
- }
- return err;
-}
-
-STATIC int
-linvfs_get_block_core(
- struct inode *inode,
- sector_t iblock,
- unsigned long blocks,
- struct buffer_head *bh_result,
- int create,
- int direct,
- bmapi_flags_t flags)
-{
- vnode_t *vp = LINVFS_GET_VP(inode);
- xfs_iomap_t iomap;
- int retpbbm = 1;
- int error;
- ssize_t size;
- loff_t offset = (loff_t)iblock << inode->i_blkbits;
-
- /* If we are doing writes at the end of the file,
- * allocate in chunks
- */
- if (blocks)
- size = blocks << inode->i_blkbits;
- else if (create && (offset >= i_size_read(inode)))
- size = 1 << XFS_WRITE_IO_LOG;
- else
- size = 1 << inode->i_blkbits;
-
- VOP_BMAP(vp, offset, size,
- create ? flags : BMAPI_READ, &iomap, &retpbbm, error);
- if (error)
- return -error;
-
- if (retpbbm == 0)
- return 0;
-
- if (iomap.iomap_bn != IOMAP_DADDR_NULL) {
- xfs_daddr_t bn;
- loff_t delta;
-
- /* For unwritten extents do not report a disk address on
- * the read case (treat as if we're reading into a hole).
- */
- if (create || !(iomap.iomap_flags & IOMAP_UNWRITTEN)) {
- delta = offset - iomap.iomap_offset;
- delta >>= inode->i_blkbits;
-
- bn = iomap.iomap_bn >> (inode->i_blkbits - BBSHIFT);
- bn += delta;
-
- bh_result->b_blocknr = bn;
- bh_result->b_bdev = iomap.iomap_target->pbr_bdev;
- set_buffer_mapped(bh_result);
- }
- if (create && (iomap.iomap_flags & IOMAP_UNWRITTEN)) {
- if (direct)
- bh_result->b_private = inode;
- set_buffer_unwritten(bh_result);
- set_buffer_delay(bh_result);
- }
- }
-
- /* If this is a realtime file, data might be on a new device */
- bh_result->b_bdev = iomap.iomap_target->pbr_bdev;
-
- /* If we previously allocated a block out beyond eof and
- * we are now coming back to use it then we will need to
- * flag it as new even if it has a disk address.
- */
- if (create &&
- ((!buffer_mapped(bh_result) && !buffer_uptodate(bh_result)) ||
- (offset >= i_size_read(inode)) || (iomap.iomap_flags & IOMAP_NEW))) {
- set_buffer_new(bh_result);
- }
-
- if (iomap.iomap_flags & IOMAP_DELAY) {
- if (unlikely(direct))
- BUG();
- if (create) {
- set_buffer_mapped(bh_result);
- set_buffer_uptodate(bh_result);
- }
- bh_result->b_bdev = iomap.iomap_target->pbr_bdev;
- set_buffer_delay(bh_result);
- }
-
- if (blocks) {
- loff_t iosize;
- iosize = (iomap.iomap_bsize - iomap.iomap_delta);
- bh_result->b_size =
- (ssize_t)min(iosize, (loff_t)(blocks << inode->i_blkbits));
- }
-
- return 0;
-}
-
-int
-linvfs_get_block(
- struct inode *inode,
- sector_t iblock,
- struct buffer_head *bh_result,
- int create)
-{
- return linvfs_get_block_core(inode, iblock, 0, bh_result,
- create, 0, BMAPI_WRITE);
-}
-
-STATIC int
-linvfs_get_block_sync(
- struct inode *inode,
- sector_t iblock,
- struct buffer_head *bh_result,
- int create)
-{
- return linvfs_get_block_core(inode, iblock, 0, bh_result,
- create, 0, BMAPI_SYNC|BMAPI_WRITE);
-}
-
-STATIC int
-linvfs_get_blocks_direct(
- struct inode *inode,
- sector_t iblock,
- unsigned long max_blocks,
- struct buffer_head *bh_result,
- int create)
-{
- return linvfs_get_block_core(inode, iblock, max_blocks, bh_result,
- create, 1, BMAPI_WRITE|BMAPI_DIRECT);
-}
-
-STATIC ssize_t
-linvfs_direct_IO(
- int rw,
- struct kiocb *iocb,
- const struct iovec *iov,
- loff_t offset,
- unsigned long nr_segs)
-{
- struct file *file = iocb->ki_filp;
- struct inode *inode = file->f_mapping->host;
- vnode_t *vp = LINVFS_GET_VP(inode);
- xfs_iomap_t iomap;
- int maps = 1;
- int error;
-
- VOP_BMAP(vp, offset, 0, BMAPI_DEVICE, &iomap, &maps, error);
- if (error)
- return -error;
-
- return blockdev_direct_IO_no_locking(rw, iocb, inode,
- iomap.iomap_target->pbr_bdev,
- iov, offset, nr_segs,
- linvfs_get_blocks_direct,
- linvfs_unwritten_convert_direct);
-}
-
-
-STATIC sector_t
-linvfs_bmap(
- struct address_space *mapping,
- sector_t block)
-{
- struct inode *inode = (struct inode *)mapping->host;
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error;
-
- vn_trace_entry(vp, "linvfs_bmap", (inst_t *)__return_address);
-
- VOP_RWLOCK(vp, VRWLOCK_READ);
- VOP_FLUSH_PAGES(vp, (xfs_off_t)0, -1, 0, FI_REMAPF, error);
- VOP_RWUNLOCK(vp, VRWLOCK_READ);
- return generic_block_bmap(mapping, block, linvfs_get_block);
-}
-
-STATIC int
-linvfs_readpage(
- struct file *unused,
- struct page *page)
-{
- return mpage_readpage(page, linvfs_get_block);
-}
-
-STATIC int
-linvfs_readpages(
- struct file *unused,
- struct address_space *mapping,
- struct list_head *pages,
- unsigned nr_pages)
-{
- return mpage_readpages(mapping, pages, nr_pages, linvfs_get_block);
-}
-
-STATIC void
-xfs_count_page_state(
- struct page *page,
- int *delalloc,
- int *unmapped,
- int *unwritten)
-{
- struct buffer_head *bh, *head;
-
- *delalloc = *unmapped = *unwritten = 0;
-
- bh = head = page_buffers(page);
- do {
- if (buffer_uptodate(bh) && !buffer_mapped(bh))
- (*unmapped) = 1;
- else if (buffer_unwritten(bh) && !buffer_delay(bh))
- clear_buffer_unwritten(bh);
- else if (buffer_unwritten(bh))
- (*unwritten) = 1;
- else if (buffer_delay(bh))
- (*delalloc) = 1;
- } while ((bh = bh->b_this_page) != head);
-}
-
-
-/*
- * writepage: Called from one of two places:
- *
- * 1. we are flushing a delalloc buffer head.
- *
- * 2. we are writing out a dirty page. Typically the page dirty
- * state is cleared before we get here. In this case is it
- * conceivable we have no buffer heads.
- *
- * For delalloc space on the page we need to allocate space and
- * flush it. For unmapped buffer heads on the page we should
- * allocate space if the page is uptodate. For any other dirty
- * buffer heads on the page we should flush them.
- *
- * If we detect that a transaction would be required to flush
- * the page, we have to check the process flags first, if we
- * are already in a transaction or disk I/O during allocations
- * is off, we need to fail the writepage and redirty the page.
- */
-
-STATIC int
-linvfs_writepage(
- struct page *page,
- struct writeback_control *wbc)
-{
- int error;
- int need_trans;
- int delalloc, unmapped, unwritten;
- struct inode *inode = page->mapping->host;
-
- xfs_page_trace(XFS_WRITEPAGE_ENTER, inode, page, 0);
-
- /*
- * We need a transaction if:
- * 1. There are delalloc buffers on the page
- * 2. The page is uptodate and we have unmapped buffers
- * 3. The page is uptodate and we have no buffers
- * 4. There are unwritten buffers on the page
- */
-
- if (!page_has_buffers(page)) {
- unmapped = 1;
- need_trans = 1;
- } else {
- xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
- if (!PageUptodate(page))
- unmapped = 0;
- need_trans = delalloc + unmapped + unwritten;
- }
-
- /*
- * If we need a transaction and the process flags say
- * we are already in a transaction, or no IO is allowed
- * then mark the page dirty again and leave the page
- * as is.
- */
- if (PFLAGS_TEST_FSTRANS() && need_trans)
- goto out_fail;
-
- /*
- * Delay hooking up buffer heads until we have
- * made our go/no-go decision.
- */
- if (!page_has_buffers(page))
- create_empty_buffers(page, 1 << inode->i_blkbits, 0);
-
- /*
- * Convert delayed allocate, unwritten or unmapped space
- * to real space and flush out to disk.
- */
- error = xfs_page_state_convert(inode, page, 1, unmapped);
- if (error == -EAGAIN)
- goto out_fail;
- if (unlikely(error < 0))
- goto out_unlock;
-
- return 0;
-
-out_fail:
- set_page_dirty(page);
- unlock_page(page);
- return 0;
-out_unlock:
- unlock_page(page);
- return error;
-}
-
-/*
- * Called to move a page into cleanable state - and from there
- * to be released. Possibly the page is already clean. We always
- * have buffer heads in this call.
- *
- * Returns 0 if the page is ok to release, 1 otherwise.
- *
- * Possible scenarios are:
- *
- * 1. We are being called to release a page which has been written
- * to via regular I/O. buffer heads will be dirty and possibly
- * delalloc. If no delalloc buffer heads in this case then we
- * can just return zero.
- *
- * 2. We are called to release a page which has been written via
- * mmap, all we need to do is ensure there is no delalloc
- * state in the buffer heads, if not we can let the caller
- * free them and we should come back later via writepage.
- */
-STATIC int
-linvfs_release_page(
- struct page *page,
- int gfp_mask)
-{
- struct inode *inode = page->mapping->host;
- int dirty, delalloc, unmapped, unwritten;
-
- xfs_page_trace(XFS_RELEASEPAGE_ENTER, inode, page, gfp_mask);
-
- xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
- if (!delalloc && !unwritten)
- goto free_buffers;
-
- if (!(gfp_mask & __GFP_FS))
- return 0;
-
- /* If we are already inside a transaction or the thread cannot
- * do I/O, we cannot release this page.
- */
- if (PFLAGS_TEST_FSTRANS())
- return 0;
-
- /*
- * Convert delalloc space to real space, do not flush the
- * data out to disk, that will be done by the caller.
- * Never need to allocate space here - we will always
- * come back to writepage in that case.
- */
- dirty = xfs_page_state_convert(inode, page, 0, 0);
- if (dirty == 0 && !unwritten)
- goto free_buffers;
- return 0;
-
-free_buffers:
- return try_to_free_buffers(page);
-}
-
-STATIC int
-linvfs_prepare_write(
- struct file *file,
- struct page *page,
- unsigned int from,
- unsigned int to)
-{
- if (file && (file->f_flags & O_SYNC)) {
- return block_prepare_write(page, from, to,
- linvfs_get_block_sync);
- } else {
- return block_prepare_write(page, from, to,
- linvfs_get_block);
- }
-}
-
-struct address_space_operations linvfs_aops = {
- .readpage = linvfs_readpage,
- .readpages = linvfs_readpages,
- .writepage = linvfs_writepage,
- .sync_page = block_sync_page,
- .releasepage = linvfs_release_page,
- .prepare_write = linvfs_prepare_write,
- .commit_write = generic_commit_write,
- .bmap = linvfs_bmap,
- .direct_IO = linvfs_direct_IO,
-};
+++ /dev/null
-/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-/*
- * The xfs_buf.c code provides an abstract buffer cache model on top
- * of the Linux page cache. Cached metadata blocks for a file system
- * are hashed to the inode for the block device. xfs_buf.c assembles
- * buffers (xfs_buf_t) on demand to aggregate such cached pages for I/O.
- *
- * Written by Steve Lord, Jim Mostek, Russell Cattelan
- * and Rajagopal Ananthanarayanan ("ananth") at SGI.
- *
- */
-
-#include <linux/stddef.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/bio.h>
-#include <linux/sysctl.h>
-#include <linux/proc_fs.h>
-#include <linux/workqueue.h>
-#include <linux/suspend.h>
-#include <linux/percpu.h>
-
-#include "xfs_linux.h"
-
-#ifndef GFP_READAHEAD
-#define GFP_READAHEAD (__GFP_NOWARN|__GFP_NORETRY)
-#endif
-
-/*
- * File wide globals
- */
-
-STATIC kmem_cache_t *pagebuf_cache;
-STATIC void pagebuf_daemon_wakeup(void);
-STATIC void pagebuf_delwri_queue(xfs_buf_t *, int);
-STATIC struct workqueue_struct *pagebuf_logio_workqueue;
-STATIC struct workqueue_struct *pagebuf_dataio_workqueue;
-
-/*
- * Pagebuf debugging
- */
-
-#ifdef PAGEBUF_TRACE
-void
-pagebuf_trace(
- xfs_buf_t *pb,
- char *id,
- void *data,
- void *ra)
-{
- ktrace_enter(pagebuf_trace_buf,
- pb, id,
- (void *)(unsigned long)pb->pb_flags,
- (void *)(unsigned long)pb->pb_hold.counter,
- (void *)(unsigned long)pb->pb_sema.count.counter,
- (void *)current,
- data, ra,
- (void *)(unsigned long)((pb->pb_file_offset>>32) & 0xffffffff),
- (void *)(unsigned long)(pb->pb_file_offset & 0xffffffff),
- (void *)(unsigned long)pb->pb_buffer_length,
- NULL, NULL, NULL, NULL, NULL);
-}
-ktrace_t *pagebuf_trace_buf;
-#define PAGEBUF_TRACE_SIZE 4096
-#define PB_TRACE(pb, id, data) \
- pagebuf_trace(pb, id, (void *)data, (void *)__builtin_return_address(0))
-#else
-#define PB_TRACE(pb, id, data) do { } while (0)
-#endif
-
-#ifdef PAGEBUF_LOCK_TRACKING
-# define PB_SET_OWNER(pb) ((pb)->pb_last_holder = current->pid)
-# define PB_CLEAR_OWNER(pb) ((pb)->pb_last_holder = -1)
-# define PB_GET_OWNER(pb) ((pb)->pb_last_holder)
-#else
-# define PB_SET_OWNER(pb) do { } while (0)
-# define PB_CLEAR_OWNER(pb) do { } while (0)
-# define PB_GET_OWNER(pb) do { } while (0)
-#endif
-
-/*
- * Pagebuf allocation / freeing.
- */
-
-#define pb_to_gfp(flags) \
- (((flags) & PBF_READ_AHEAD) ? GFP_READAHEAD : \
- ((flags) & PBF_DONT_BLOCK) ? GFP_NOFS : GFP_KERNEL)
-
-#define pb_to_km(flags) \
- (((flags) & PBF_DONT_BLOCK) ? KM_NOFS : KM_SLEEP)
-
-
-#define pagebuf_allocate(flags) \
- kmem_zone_alloc(pagebuf_cache, pb_to_km(flags))
-#define pagebuf_deallocate(pb) \
- kmem_zone_free(pagebuf_cache, (pb));
-
-/*
- * Pagebuf hashing
- */
-
-#define NBITS 8
-#define NHASH (1<<NBITS)
-
-typedef struct {
- struct list_head pb_hash;
- spinlock_t pb_hash_lock;
-} pb_hash_t;
-
-STATIC pb_hash_t pbhash[NHASH];
-#define pb_hash(pb) &pbhash[pb->pb_hash_index]
-
-STATIC int
-_bhash(
- struct block_device *bdev,
- loff_t base)
-{
- int bit, hval;
-
- base >>= 9;
- base ^= (unsigned long)bdev / L1_CACHE_BYTES;
- for (bit = hval = 0; base && bit < sizeof(base) * 8; bit += NBITS) {
- hval ^= (int)base & (NHASH-1);
- base >>= NBITS;
- }
- return hval;
-}
-
-/*
- * Mapping of multi-page buffers into contiguous virtual space
- */
-
-typedef struct a_list {
- void *vm_addr;
- struct a_list *next;
-} a_list_t;
-
-STATIC a_list_t *as_free_head;
-STATIC int as_list_len;
-STATIC spinlock_t as_lock = SPIN_LOCK_UNLOCKED;
-
-/*
- * Try to batch vunmaps because they are costly.
- */
-STATIC void
-free_address(
- void *addr)
-{
- a_list_t *aentry;
-
- aentry = kmalloc(sizeof(a_list_t), GFP_ATOMIC);
- if (aentry) {
- spin_lock(&as_lock);
- aentry->next = as_free_head;
- aentry->vm_addr = addr;
- as_free_head = aentry;
- as_list_len++;
- spin_unlock(&as_lock);
- } else {
- vunmap(addr);
- }
-}
-
-STATIC void
-purge_addresses(void)
-{
- a_list_t *aentry, *old;
-
- if (as_free_head == NULL)
- return;
-
- spin_lock(&as_lock);
- aentry = as_free_head;
- as_free_head = NULL;
- as_list_len = 0;
- spin_unlock(&as_lock);
-
- while ((old = aentry) != NULL) {
- vunmap(aentry->vm_addr);
- aentry = aentry->next;
- kfree(old);
- }
-}
-
-/*
- * Internal pagebuf object manipulation
- */
-
-STATIC void
-_pagebuf_initialize(
- xfs_buf_t *pb,
- xfs_buftarg_t *target,
- loff_t range_base,
- size_t range_length,
- page_buf_flags_t flags)
-{
- /*
- * We don't want certain flags to appear in pb->pb_flags.
- */
- flags &= ~(PBF_LOCK|PBF_MAPPED|PBF_DONT_BLOCK|PBF_READ_AHEAD);
-
- memset(pb, 0, sizeof(xfs_buf_t));
- atomic_set(&pb->pb_hold, 1);
- init_MUTEX_LOCKED(&pb->pb_iodonesema);
- INIT_LIST_HEAD(&pb->pb_list);
- INIT_LIST_HEAD(&pb->pb_hash_list);
- init_MUTEX_LOCKED(&pb->pb_sema); /* held, no waiters */
- PB_SET_OWNER(pb);
- pb->pb_target = target;
- pb->pb_file_offset = range_base;
- /*
- * Set buffer_length and count_desired to the same value initially.
- * I/O routines should use count_desired, which will be the same in
- * most cases but may be reset (e.g. XFS recovery).
- */
- pb->pb_buffer_length = pb->pb_count_desired = range_length;
- pb->pb_flags = flags | PBF_NONE;
- pb->pb_bn = XFS_BUF_DADDR_NULL;
- atomic_set(&pb->pb_pin_count, 0);
- init_waitqueue_head(&pb->pb_waiters);
-
- XFS_STATS_INC(pb_create);
- PB_TRACE(pb, "initialize", target);
-}
-
-/*
- * Allocate a page array capable of holding a specified number
- * of pages, and point the page buf at it.
- */
-STATIC int
-_pagebuf_get_pages(
- xfs_buf_t *pb,
- int page_count,
- page_buf_flags_t flags)
-{
- /* Make sure that we have a page list */
- if (pb->pb_pages == NULL) {
- pb->pb_offset = page_buf_poff(pb->pb_file_offset);
- pb->pb_page_count = page_count;
- if (page_count <= PB_PAGES) {
- pb->pb_pages = pb->pb_page_array;
- } else {
- pb->pb_pages = kmem_alloc(sizeof(struct page *) *
- page_count, pb_to_km(flags));
- if (pb->pb_pages == NULL)
- return -ENOMEM;
- }
- memset(pb->pb_pages, 0, sizeof(struct page *) * page_count);
- }
- return 0;
-}
-
-/*
- * Frees pb_pages if it was malloced.
- */
-STATIC void
-_pagebuf_free_pages(
- xfs_buf_t *bp)
-{
- if (bp->pb_pages != bp->pb_page_array) {
- kmem_free(bp->pb_pages,
- bp->pb_page_count * sizeof(struct page *));
- }
-}
-
-/*
- * Releases the specified buffer.
- *
- * The modification state of any associated pages is left unchanged.
- * The buffer most not be on any hash - use pagebuf_rele instead for
- * hashed and refcounted buffers
- */
-void
-pagebuf_free(
- xfs_buf_t *bp)
-{
- PB_TRACE(bp, "free", 0);
-
- ASSERT(list_empty(&bp->pb_hash_list));
-
- if (bp->pb_flags & _PBF_PAGE_CACHE) {
- uint i;
-
- if ((bp->pb_flags & PBF_MAPPED) && (bp->pb_page_count > 1))
- free_address(bp->pb_addr - bp->pb_offset);
-
- for (i = 0; i < bp->pb_page_count; i++)
- page_cache_release(bp->pb_pages[i]);
- _pagebuf_free_pages(bp);
- } else if (bp->pb_flags & _PBF_KMEM_ALLOC) {
- /*
- * XXX(hch): bp->pb_count_desired might be incorrect (see
- * pagebuf_associate_memory for details), but fortunately
- * the Linux version of kmem_free ignores the len argument..
- */
- kmem_free(bp->pb_addr, bp->pb_count_desired);
- _pagebuf_free_pages(bp);
- }
-
- pagebuf_deallocate(bp);
-}
-
-/*
- * Finds all pages for buffer in question and builds it's page list.
- */
-STATIC int
-_pagebuf_lookup_pages(
- xfs_buf_t *bp,
- uint flags)
-{
- struct address_space *mapping = bp->pb_target->pbr_mapping;
- unsigned int sectorshift = bp->pb_target->pbr_sshift;
- size_t blocksize = bp->pb_target->pbr_bsize;
- size_t size = bp->pb_count_desired;
- size_t nbytes, offset;
- int gfp_mask = pb_to_gfp(flags);
- unsigned short page_count, i;
- pgoff_t first;
- loff_t end;
- int error;
-
- end = bp->pb_file_offset + bp->pb_buffer_length;
- page_count = page_buf_btoc(end) - page_buf_btoct(bp->pb_file_offset);
-
- error = _pagebuf_get_pages(bp, page_count, flags);
- if (unlikely(error))
- return error;
-
- offset = bp->pb_offset;
- first = bp->pb_file_offset >> PAGE_CACHE_SHIFT;
-
- for (i = 0; i < bp->pb_page_count; i++) {
- struct page *page;
- uint retries = 0;
-
- retry:
- page = find_or_create_page(mapping, first + i, gfp_mask);
- if (unlikely(page == NULL)) {
- if (flags & PBF_READ_AHEAD)
- return -ENOMEM;
-
- /*
- * This could deadlock.
- *
- * But until all the XFS lowlevel code is revamped to
- * handle buffer allocation failures we can't do much.
- */
- if (!(++retries % 100)) {
- printk(KERN_ERR "possibly deadlocking in %s\n",
- __FUNCTION__);
- }
-
- XFS_STATS_INC(pb_page_retries);
- pagebuf_daemon_wakeup();
- current->state = TASK_UNINTERRUPTIBLE;
- schedule_timeout(10);
- goto retry;
- }
-
- XFS_STATS_INC(pb_page_found);
-
- nbytes = min_t(size_t, size, PAGE_CACHE_SIZE - offset);
- size -= nbytes;
-
- if (!PageUptodate(page)) {
- page_count--;
- if (blocksize == PAGE_CACHE_SIZE) {
- if (flags & PBF_READ)
- bp->pb_locked = 1;
- } else if (!PagePrivate(page)) {
- unsigned long j, range;
-
- /*
- * In this case page->private holds a bitmap
- * of uptodate sectors within the page
- */
- ASSERT(blocksize < PAGE_CACHE_SIZE);
- range = (offset + nbytes) >> sectorshift;
- for (j = offset >> sectorshift; j < range; j++)
- if (!test_bit(j, &page->private))
- break;
- if (j == range)
- page_count++;
- }
- }
-
- bp->pb_pages[i] = page;
- offset = 0;
- }
-
- if (!bp->pb_locked) {
- for (i = 0; i < bp->pb_page_count; i++)
- unlock_page(bp->pb_pages[i]);
- }
-
- bp->pb_flags |= _PBF_PAGE_CACHE;
-
- if (page_count) {
- /* if we have any uptodate pages, mark that in the buffer */
- bp->pb_flags &= ~PBF_NONE;
-
- /* if some pages aren't uptodate, mark that in the buffer */
- if (page_count != bp->pb_page_count)
- bp->pb_flags |= PBF_PARTIAL;
- }
-
- PB_TRACE(bp, "lookup_pages", (long)page_count);
- return error;
-}
-
-/*
- * Map buffer into kernel address-space if nessecary.
- */
-STATIC int
-_pagebuf_map_pages(
- xfs_buf_t *bp,
- uint flags)
-{
- /* A single page buffer is always mappable */
- if (bp->pb_page_count == 1) {
- bp->pb_addr = page_address(bp->pb_pages[0]) + bp->pb_offset;
- bp->pb_flags |= PBF_MAPPED;
- } else if (flags & PBF_MAPPED) {
- if (as_list_len > 64)
- purge_addresses();
- bp->pb_addr = vmap(bp->pb_pages, bp->pb_page_count,
- VM_MAP, PAGE_KERNEL);
- if (unlikely(bp->pb_addr == NULL))
- return -ENOMEM;
- bp->pb_addr += bp->pb_offset;
- bp->pb_flags |= PBF_MAPPED;
- }
-
- return 0;
-}
-
-/*
- * Finding and Reading Buffers
- */
-
-/*
- * _pagebuf_find
- *
- * Looks up, and creates if absent, a lockable buffer for
- * a given range of an inode. The buffer is returned
- * locked. If other overlapping buffers exist, they are
- * released before the new buffer is created and locked,
- * which may imply that this call will block until those buffers
- * are unlocked. No I/O is implied by this call.
- */
-STATIC xfs_buf_t *
-_pagebuf_find( /* find buffer for block */
- xfs_buftarg_t *target,/* target for block */
- loff_t ioff, /* starting offset of range */
- size_t isize, /* length of range */
- page_buf_flags_t flags, /* PBF_TRYLOCK */
- xfs_buf_t *new_pb)/* newly allocated buffer */
-{
- loff_t range_base;
- size_t range_length;
- int hval;
- pb_hash_t *h;
- xfs_buf_t *pb, *n;
- int not_locked;
-
- range_base = (ioff << BBSHIFT);
- range_length = (isize << BBSHIFT);
-
- /* Ensure we never do IOs smaller than the sector size */
- BUG_ON(range_length < (1 << target->pbr_sshift));
-
- /* Ensure we never do IOs that are not sector aligned */
- BUG_ON(range_base & (loff_t)target->pbr_smask);
-
- hval = _bhash(target->pbr_bdev, range_base);
- h = &pbhash[hval];
-
- spin_lock(&h->pb_hash_lock);
- list_for_each_entry_safe(pb, n, &h->pb_hash, pb_hash_list) {
- if (pb->pb_target == target &&
- pb->pb_file_offset == range_base &&
- pb->pb_buffer_length == range_length) {
- /* If we look at something bring it to the
- * front of the list for next time
- */
- atomic_inc(&pb->pb_hold);
- list_move(&pb->pb_hash_list, &h->pb_hash);
- goto found;
- }
- }
-
- /* No match found */
- if (new_pb) {
- _pagebuf_initialize(new_pb, target, range_base,
- range_length, flags);
- new_pb->pb_hash_index = hval;
- list_add(&new_pb->pb_hash_list, &h->pb_hash);
- } else {
- XFS_STATS_INC(pb_miss_locked);
- }
-
- spin_unlock(&h->pb_hash_lock);
- return (new_pb);
-
-found:
- spin_unlock(&h->pb_hash_lock);
-
- /* Attempt to get the semaphore without sleeping,
- * if this does not work then we need to drop the
- * spinlock and do a hard attempt on the semaphore.
- */
- not_locked = down_trylock(&pb->pb_sema);
- if (not_locked) {
- if (!(flags & PBF_TRYLOCK)) {
- /* wait for buffer ownership */
- PB_TRACE(pb, "get_lock", 0);
- pagebuf_lock(pb);
- XFS_STATS_INC(pb_get_locked_waited);
- } else {
- /* We asked for a trylock and failed, no need
- * to look at file offset and length here, we
- * know that this pagebuf at least overlaps our
- * pagebuf and is locked, therefore our buffer
- * either does not exist, or is this buffer
- */
-
- pagebuf_rele(pb);
- XFS_STATS_INC(pb_busy_locked);
- return (NULL);
- }
- } else {
- /* trylock worked */
- PB_SET_OWNER(pb);
- }
-
- if (pb->pb_flags & PBF_STALE)
- pb->pb_flags &= PBF_MAPPED;
- PB_TRACE(pb, "got_lock", 0);
- XFS_STATS_INC(pb_get_locked);
- return (pb);
-}
-
-
-/*
- * pagebuf_find
- *
- * pagebuf_find returns a buffer matching the specified range of
- * data for the specified target, if any of the relevant blocks
- * are in memory. The buffer may have unallocated holes, if
- * some, but not all, of the blocks are in memory. Even where
- * pages are present in the buffer, not all of every page may be
- * valid.
- */
-xfs_buf_t *
-pagebuf_find( /* find buffer for block */
- /* if the block is in memory */
- xfs_buftarg_t *target,/* target for block */
- loff_t ioff, /* starting offset of range */
- size_t isize, /* length of range */
- page_buf_flags_t flags) /* PBF_TRYLOCK */
-{
- return _pagebuf_find(target, ioff, isize, flags, NULL);
-}
-
-/*
- * pagebuf_get
- *
- * pagebuf_get assembles a buffer covering the specified range.
- * Some or all of the blocks in the range may be valid. Storage
- * in memory for all portions of the buffer will be allocated,
- * although backing storage may not be. If PBF_READ is set in
- * flags, pagebuf_iostart is called also.
- */
-xfs_buf_t *
-pagebuf_get( /* allocate a buffer */
- xfs_buftarg_t *target,/* target for buffer */
- loff_t ioff, /* starting offset of range */
- size_t isize, /* length of range */
- page_buf_flags_t flags) /* PBF_TRYLOCK */
-{
- xfs_buf_t *pb, *new_pb;
- int error = 0, i;
-
- new_pb = pagebuf_allocate(flags);
- if (unlikely(!new_pb))
- return NULL;
-
- pb = _pagebuf_find(target, ioff, isize, flags, new_pb);
- if (pb == new_pb) {
- error = _pagebuf_lookup_pages(pb, flags);
- if (unlikely(error)) {
- printk(KERN_WARNING
- "pagebuf_get: failed to lookup pages\n");
- goto no_buffer;
- }
- } else {
- pagebuf_deallocate(new_pb);
- if (unlikely(pb == NULL))
- return NULL;
- }
-
- for (i = 0; i < pb->pb_page_count; i++)
- mark_page_accessed(pb->pb_pages[i]);
-
- if (!(pb->pb_flags & PBF_MAPPED)) {
- error = _pagebuf_map_pages(pb, flags);
- if (unlikely(error)) {
- printk(KERN_WARNING
- "pagebuf_get: failed to map pages\n");
- goto no_buffer;
- }
- }
-
- XFS_STATS_INC(pb_get);
-
- /*
- * Always fill in the block number now, the mapped cases can do
- * their own overlay of this later.
- */
- pb->pb_bn = ioff;
- pb->pb_count_desired = pb->pb_buffer_length;
-
- if (flags & PBF_READ) {
- if (PBF_NOT_DONE(pb)) {
- PB_TRACE(pb, "get_read", (unsigned long)flags);
- XFS_STATS_INC(pb_get_read);
- pagebuf_iostart(pb, flags);
- } else if (flags & PBF_ASYNC) {
- PB_TRACE(pb, "get_read_async", (unsigned long)flags);
- /*
- * Read ahead call which is already satisfied,
- * drop the buffer
- */
- goto no_buffer;
- } else {
- PB_TRACE(pb, "get_read_done", (unsigned long)flags);
- /* We do not want read in the flags */
- pb->pb_flags &= ~PBF_READ;
- }
- } else {
- PB_TRACE(pb, "get_write", (unsigned long)flags);
- }
-
- return pb;
-
-no_buffer:
- if (flags & (PBF_LOCK | PBF_TRYLOCK))
- pagebuf_unlock(pb);
- pagebuf_rele(pb);
- return NULL;
-}
-
-/*
- * Create a skeletal pagebuf (no pages associated with it).
- */
-xfs_buf_t *
-pagebuf_lookup(
- xfs_buftarg_t *target,
- loff_t ioff,
- size_t isize,
- page_buf_flags_t flags)
-{
- xfs_buf_t *pb;
-
- pb = pagebuf_allocate(flags);
- if (pb) {
- _pagebuf_initialize(pb, target, ioff, isize, flags);
- }
- return pb;
-}
-
-/*
- * If we are not low on memory then do the readahead in a deadlock
- * safe manner.
- */
-void
-pagebuf_readahead(
- xfs_buftarg_t *target,
- loff_t ioff,
- size_t isize,
- page_buf_flags_t flags)
-{
- struct backing_dev_info *bdi;
-
- bdi = target->pbr_mapping->backing_dev_info;
- if (bdi_read_congested(bdi))
- return;
- if (bdi_write_congested(bdi))
- return;
-
- flags |= (PBF_TRYLOCK|PBF_READ|PBF_ASYNC|PBF_READ_AHEAD);
- pagebuf_get(target, ioff, isize, flags);
-}
-
-xfs_buf_t *
-pagebuf_get_empty(
- size_t len,
- xfs_buftarg_t *target)
-{
- xfs_buf_t *pb;
-
- pb = pagebuf_allocate(0);
- if (pb)
- _pagebuf_initialize(pb, target, 0, len, 0);
- return pb;
-}
-
-static inline struct page *
-mem_to_page(
- void *addr)
-{
- if (((unsigned long)addr < VMALLOC_START) ||
- ((unsigned long)addr >= VMALLOC_END)) {
- return virt_to_page(addr);
- } else {
- return vmalloc_to_page(addr);
- }
-}
-
-int
-pagebuf_associate_memory(
- xfs_buf_t *pb,
- void *mem,
- size_t len)
-{
- int rval;
- int i = 0;
- size_t ptr;
- size_t end, end_cur;
- off_t offset;
- int page_count;
-
- page_count = PAGE_CACHE_ALIGN(len) >> PAGE_CACHE_SHIFT;
- offset = (off_t) mem - ((off_t)mem & PAGE_CACHE_MASK);
- if (offset && (len > PAGE_CACHE_SIZE))
- page_count++;
-
- /* Free any previous set of page pointers */
- if (pb->pb_pages)
- _pagebuf_free_pages(pb);
-
- pb->pb_pages = NULL;
- pb->pb_addr = mem;
-
- rval = _pagebuf_get_pages(pb, page_count, 0);
- if (rval)
- return rval;
-
- pb->pb_offset = offset;
- ptr = (size_t) mem & PAGE_CACHE_MASK;
- end = PAGE_CACHE_ALIGN((size_t) mem + len);
- end_cur = end;
- /* set up first page */
- pb->pb_pages[0] = mem_to_page(mem);
-
- ptr += PAGE_CACHE_SIZE;
- pb->pb_page_count = ++i;
- while (ptr < end) {
- pb->pb_pages[i] = mem_to_page((void *)ptr);
- pb->pb_page_count = ++i;
- ptr += PAGE_CACHE_SIZE;
- }
- pb->pb_locked = 0;
-
- pb->pb_count_desired = pb->pb_buffer_length = len;
- pb->pb_flags |= PBF_MAPPED;
-
- return 0;
-}
-
-xfs_buf_t *
-pagebuf_get_no_daddr(
- size_t len,
- xfs_buftarg_t *target)
-{
- size_t malloc_len = len;
- xfs_buf_t *bp;
- void *data;
- int error;
-
- if (unlikely(len > 0x20000))
- goto fail;
-
- bp = pagebuf_allocate(0);
- if (unlikely(bp == NULL))
- goto fail;
- _pagebuf_initialize(bp, target, 0, len, PBF_FORCEIO);
-
- try_again:
- data = kmem_alloc(malloc_len, KM_SLEEP);
- if (unlikely(data == NULL))
- goto fail_free_buf;
-
- /* check whether alignment matches.. */
- if ((__psunsigned_t)data !=
- ((__psunsigned_t)data & ~target->pbr_smask)) {
- /* .. else double the size and try again */
- kmem_free(data, malloc_len);
- malloc_len <<= 1;
- goto try_again;
- }
-
- error = pagebuf_associate_memory(bp, data, len);
- if (error)
- goto fail_free_mem;
- bp->pb_flags |= _PBF_KMEM_ALLOC;
-
- pagebuf_unlock(bp);
-
- PB_TRACE(bp, "no_daddr", data);
- return bp;
- fail_free_mem:
- kmem_free(data, malloc_len);
- fail_free_buf:
- pagebuf_free(bp);
- fail:
- return NULL;
-}
-
-/*
- * pagebuf_hold
- *
- * Increment reference count on buffer, to hold the buffer concurrently
- * with another thread which may release (free) the buffer asynchronously.
- *
- * Must hold the buffer already to call this function.
- */
-void
-pagebuf_hold(
- xfs_buf_t *pb)
-{
- atomic_inc(&pb->pb_hold);
- PB_TRACE(pb, "hold", 0);
-}
-
-/*
- * pagebuf_rele
- *
- * pagebuf_rele releases a hold on the specified buffer. If the
- * the hold count is 1, pagebuf_rele calls pagebuf_free.
- */
-void
-pagebuf_rele(
- xfs_buf_t *pb)
-{
- pb_hash_t *hash = pb_hash(pb);
-
- PB_TRACE(pb, "rele", pb->pb_relse);
-
- if (atomic_dec_and_lock(&pb->pb_hold, &hash->pb_hash_lock)) {
- int do_free = 1;
-
- if (pb->pb_relse) {
- atomic_inc(&pb->pb_hold);
- spin_unlock(&hash->pb_hash_lock);
- (*(pb->pb_relse)) (pb);
- spin_lock(&hash->pb_hash_lock);
- do_free = 0;
- }
-
- if (pb->pb_flags & PBF_DELWRI) {
- pb->pb_flags |= PBF_ASYNC;
- atomic_inc(&pb->pb_hold);
- pagebuf_delwri_queue(pb, 0);
- do_free = 0;
- } else if (pb->pb_flags & PBF_FS_MANAGED) {
- do_free = 0;
- }
-
- if (do_free) {
- list_del_init(&pb->pb_hash_list);
- spin_unlock(&hash->pb_hash_lock);
- pagebuf_free(pb);
- } else {
- spin_unlock(&hash->pb_hash_lock);
- }
- }
-}
-
-
-/*
- * Mutual exclusion on buffers. Locking model:
- *
- * Buffers associated with inodes for which buffer locking
- * is not enabled are not protected by semaphores, and are
- * assumed to be exclusively owned by the caller. There is a
- * spinlock in the buffer, used by the caller when concurrent
- * access is possible.
- */
-
-/*
- * pagebuf_cond_lock
- *
- * pagebuf_cond_lock locks a buffer object, if it is not already locked.
- * Note that this in no way
- * locks the underlying pages, so it is only useful for synchronizing
- * concurrent use of page buffer objects, not for synchronizing independent
- * access to the underlying pages.
- */
-int
-pagebuf_cond_lock( /* lock buffer, if not locked */
- /* returns -EBUSY if locked) */
- xfs_buf_t *pb)
-{
- int locked;
-
- locked = down_trylock(&pb->pb_sema) == 0;
- if (locked) {
- PB_SET_OWNER(pb);
- }
- PB_TRACE(pb, "cond_lock", (long)locked);
- return(locked ? 0 : -EBUSY);
-}
-
-/*
- * pagebuf_lock_value
- *
- * Return lock value for a pagebuf
- */
-int
-pagebuf_lock_value(
- xfs_buf_t *pb)
-{
- return(atomic_read(&pb->pb_sema.count));
-}
-
-/*
- * pagebuf_lock
- *
- * pagebuf_lock locks a buffer object. Note that this in no way
- * locks the underlying pages, so it is only useful for synchronizing
- * concurrent use of page buffer objects, not for synchronizing independent
- * access to the underlying pages.
- */
-int
-pagebuf_lock(
- xfs_buf_t *pb)
-{
- PB_TRACE(pb, "lock", 0);
- if (atomic_read(&pb->pb_io_remaining))
- blk_run_address_space(pb->pb_target->pbr_mapping);
- down(&pb->pb_sema);
- PB_SET_OWNER(pb);
- PB_TRACE(pb, "locked", 0);
- return 0;
-}
-
-/*
- * pagebuf_unlock
- *
- * pagebuf_unlock releases the lock on the buffer object created by
- * pagebuf_lock or pagebuf_cond_lock (not any
- * pinning of underlying pages created by pagebuf_pin).
- */
-void
-pagebuf_unlock( /* unlock buffer */
- xfs_buf_t *pb) /* buffer to unlock */
-{
- PB_CLEAR_OWNER(pb);
- up(&pb->pb_sema);
- PB_TRACE(pb, "unlock", 0);
-}
-
-
-/*
- * Pinning Buffer Storage in Memory
- */
-
-/*
- * pagebuf_pin
- *
- * pagebuf_pin locks all of the memory represented by a buffer in
- * memory. Multiple calls to pagebuf_pin and pagebuf_unpin, for
- * the same or different buffers affecting a given page, will
- * properly count the number of outstanding "pin" requests. The
- * buffer may be released after the pagebuf_pin and a different
- * buffer used when calling pagebuf_unpin, if desired.
- * pagebuf_pin should be used by the file system when it wants be
- * assured that no attempt will be made to force the affected
- * memory to disk. It does not assure that a given logical page
- * will not be moved to a different physical page.
- */
-void
-pagebuf_pin(
- xfs_buf_t *pb)
-{
- atomic_inc(&pb->pb_pin_count);
- PB_TRACE(pb, "pin", (long)pb->pb_pin_count.counter);
-}
-
-/*
- * pagebuf_unpin
- *
- * pagebuf_unpin reverses the locking of memory performed by
- * pagebuf_pin. Note that both functions affected the logical
- * pages associated with the buffer, not the buffer itself.
- */
-void
-pagebuf_unpin(
- xfs_buf_t *pb)
-{
- if (atomic_dec_and_test(&pb->pb_pin_count)) {
- wake_up_all(&pb->pb_waiters);
- }
- PB_TRACE(pb, "unpin", (long)pb->pb_pin_count.counter);
-}
-
-int
-pagebuf_ispin(
- xfs_buf_t *pb)
-{
- return atomic_read(&pb->pb_pin_count);
-}
-
-/*
- * pagebuf_wait_unpin
- *
- * pagebuf_wait_unpin waits until all of the memory associated
- * with the buffer is not longer locked in memory. It returns
- * immediately if none of the affected pages are locked.
- */
-static inline void
-_pagebuf_wait_unpin(
- xfs_buf_t *pb)
-{
- DECLARE_WAITQUEUE (wait, current);
-
- if (atomic_read(&pb->pb_pin_count) == 0)
- return;
-
- add_wait_queue(&pb->pb_waiters, &wait);
- for (;;) {
- current->state = TASK_UNINTERRUPTIBLE;
- if (atomic_read(&pb->pb_pin_count) == 0)
- break;
- if (atomic_read(&pb->pb_io_remaining))
- blk_run_address_space(pb->pb_target->pbr_mapping);
- schedule();
- }
- remove_wait_queue(&pb->pb_waiters, &wait);
- current->state = TASK_RUNNING;
-}
-
-/*
- * Buffer Utility Routines
- */
-
-/*
- * pagebuf_iodone
- *
- * pagebuf_iodone marks a buffer for which I/O is in progress
- * done with respect to that I/O. The pb_iodone routine, if
- * present, will be called as a side-effect.
- */
-void
-pagebuf_iodone_work(
- void *v)
-{
- xfs_buf_t *bp = (xfs_buf_t *)v;
-
- if (bp->pb_iodone)
- (*(bp->pb_iodone))(bp);
- else if (bp->pb_flags & PBF_ASYNC)
- xfs_buf_relse(bp);
-}
-
-void
-pagebuf_iodone(
- xfs_buf_t *pb,
- int dataio,
- int schedule)
-{
- pb->pb_flags &= ~(PBF_READ | PBF_WRITE);
- if (pb->pb_error == 0) {
- pb->pb_flags &= ~(PBF_PARTIAL | PBF_NONE);
- }
-
- PB_TRACE(pb, "iodone", pb->pb_iodone);
-
- if ((pb->pb_iodone) || (pb->pb_flags & PBF_ASYNC)) {
- if (schedule) {
- INIT_WORK(&pb->pb_iodone_work, pagebuf_iodone_work, pb);
- queue_work(dataio ? pagebuf_dataio_workqueue :
- pagebuf_logio_workqueue, &pb->pb_iodone_work);
- } else {
- pagebuf_iodone_work(pb);
- }
- } else {
- up(&pb->pb_iodonesema);
- }
-}
-
-/*
- * pagebuf_ioerror
- *
- * pagebuf_ioerror sets the error code for a buffer.
- */
-void
-pagebuf_ioerror( /* mark/clear buffer error flag */
- xfs_buf_t *pb, /* buffer to mark */
- int error) /* error to store (0 if none) */
-{
- ASSERT(error >= 0 && error <= 0xffff);
- pb->pb_error = (unsigned short)error;
- PB_TRACE(pb, "ioerror", (unsigned long)error);
-}
-
-/*
- * pagebuf_iostart
- *
- * pagebuf_iostart initiates I/O on a buffer, based on the flags supplied.
- * If necessary, it will arrange for any disk space allocation required,
- * and it will break up the request if the block mappings require it.
- * The pb_iodone routine in the buffer supplied will only be called
- * when all of the subsidiary I/O requests, if any, have been completed.
- * pagebuf_iostart calls the pagebuf_ioinitiate routine or
- * pagebuf_iorequest, if the former routine is not defined, to start
- * the I/O on a given low-level request.
- */
-int
-pagebuf_iostart( /* start I/O on a buffer */
- xfs_buf_t *pb, /* buffer to start */
- page_buf_flags_t flags) /* PBF_LOCK, PBF_ASYNC, PBF_READ, */
- /* PBF_WRITE, PBF_DELWRI, */
- /* PBF_DONT_BLOCK */
-{
- int status = 0;
-
- PB_TRACE(pb, "iostart", (unsigned long)flags);
-
- if (flags & PBF_DELWRI) {
- pb->pb_flags &= ~(PBF_READ | PBF_WRITE | PBF_ASYNC);
- pb->pb_flags |= flags & (PBF_DELWRI | PBF_ASYNC);
- pagebuf_delwri_queue(pb, 1);
- return status;
- }
-
- pb->pb_flags &= ~(PBF_READ | PBF_WRITE | PBF_ASYNC | PBF_DELWRI | \
- PBF_READ_AHEAD | _PBF_RUN_QUEUES);
- pb->pb_flags |= flags & (PBF_READ | PBF_WRITE | PBF_ASYNC | \
- PBF_READ_AHEAD | _PBF_RUN_QUEUES);
-
- BUG_ON(pb->pb_bn == XFS_BUF_DADDR_NULL);
-
- /* For writes allow an alternate strategy routine to precede
- * the actual I/O request (which may not be issued at all in
- * a shutdown situation, for example).
- */
- status = (flags & PBF_WRITE) ?
- pagebuf_iostrategy(pb) : pagebuf_iorequest(pb);
-
- /* Wait for I/O if we are not an async request.
- * Note: async I/O request completion will release the buffer,
- * and that can already be done by this point. So using the
- * buffer pointer from here on, after async I/O, is invalid.
- */
- if (!status && !(flags & PBF_ASYNC))
- status = pagebuf_iowait(pb);
-
- return status;
-}
-
-/*
- * Helper routine for pagebuf_iorequest
- */
-
-STATIC __inline__ int
-_pagebuf_iolocked(
- xfs_buf_t *pb)
-{
- ASSERT(pb->pb_flags & (PBF_READ|PBF_WRITE));
- if (pb->pb_flags & PBF_READ)
- return pb->pb_locked;
- return 0;
-}
-
-STATIC __inline__ void
-_pagebuf_iodone(
- xfs_buf_t *pb,
- int schedule)
-{
- if (atomic_dec_and_test(&pb->pb_io_remaining) == 1) {
- pb->pb_locked = 0;
- pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), schedule);
- }
-}
-
-STATIC int
-bio_end_io_pagebuf(
- struct bio *bio,
- unsigned int bytes_done,
- int error)
-{
- xfs_buf_t *pb = (xfs_buf_t *)bio->bi_private;
- unsigned int i, blocksize = pb->pb_target->pbr_bsize;
- unsigned int sectorshift = pb->pb_target->pbr_sshift;
- struct bio_vec *bvec = bio->bi_io_vec;
-
- if (bio->bi_size)
- return 1;
-
- if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
- pb->pb_error = EIO;
-
- for (i = 0; i < bio->bi_vcnt; i++, bvec++) {
- struct page *page = bvec->bv_page;
-
- if (pb->pb_error) {
- SetPageError(page);
- } else if (blocksize == PAGE_CACHE_SIZE) {
- SetPageUptodate(page);
- } else if (!PagePrivate(page) &&
- (pb->pb_flags & _PBF_PAGE_CACHE)) {
- unsigned long j, range;
-
- ASSERT(blocksize < PAGE_CACHE_SIZE);
- range = (bvec->bv_offset + bvec->bv_len) >> sectorshift;
- for (j = bvec->bv_offset >> sectorshift; j < range; j++)
- set_bit(j, &page->private);
- if (page->private == (unsigned long)(PAGE_CACHE_SIZE-1))
- SetPageUptodate(page);
- }
-
- if (_pagebuf_iolocked(pb)) {
- unlock_page(page);
- }
- }
-
- _pagebuf_iodone(pb, 1);
- bio_put(bio);
- return 0;
-}
-
-void
-_pagebuf_ioapply(
- xfs_buf_t *pb)
-{
- int i, map_i, total_nr_pages, nr_pages;
- struct bio *bio;
- int offset = pb->pb_offset;
- int size = pb->pb_count_desired;
- sector_t sector = pb->pb_bn;
- unsigned int blocksize = pb->pb_target->pbr_bsize;
- int locking = _pagebuf_iolocked(pb);
-
- total_nr_pages = pb->pb_page_count;
- map_i = 0;
-
- /* Special code path for reading a sub page size pagebuf in --
- * we populate up the whole page, and hence the other metadata
- * in the same page. This optimization is only valid when the
- * filesystem block size and the page size are equal.
- */
- if ((pb->pb_buffer_length < PAGE_CACHE_SIZE) &&
- (pb->pb_flags & PBF_READ) && locking &&
- (blocksize == PAGE_CACHE_SIZE)) {
- bio = bio_alloc(GFP_NOIO, 1);
-
- bio->bi_bdev = pb->pb_target->pbr_bdev;
- bio->bi_sector = sector - (offset >> BBSHIFT);
- bio->bi_end_io = bio_end_io_pagebuf;
- bio->bi_private = pb;
-
- bio_add_page(bio, pb->pb_pages[0], PAGE_CACHE_SIZE, 0);
- size = 0;
-
- atomic_inc(&pb->pb_io_remaining);
-
- goto submit_io;
- }
-
- /* Lock down the pages which we need to for the request */
- if (locking && (pb->pb_flags & PBF_WRITE) && (pb->pb_locked == 0)) {
- for (i = 0; size; i++) {
- int nbytes = PAGE_CACHE_SIZE - offset;
- struct page *page = pb->pb_pages[i];
-
- if (nbytes > size)
- nbytes = size;
-
- lock_page(page);
-
- size -= nbytes;
- offset = 0;
- }
- offset = pb->pb_offset;
- size = pb->pb_count_desired;
- }
-
-next_chunk:
- atomic_inc(&pb->pb_io_remaining);
- nr_pages = BIO_MAX_SECTORS >> (PAGE_SHIFT - BBSHIFT);
- if (nr_pages > total_nr_pages)
- nr_pages = total_nr_pages;
-
- bio = bio_alloc(GFP_NOIO, nr_pages);
- bio->bi_bdev = pb->pb_target->pbr_bdev;
- bio->bi_sector = sector;
- bio->bi_end_io = bio_end_io_pagebuf;
- bio->bi_private = pb;
-
- for (; size && nr_pages; nr_pages--, map_i++) {
- int nbytes = PAGE_CACHE_SIZE - offset;
-
- if (nbytes > size)
- nbytes = size;
-
- if (bio_add_page(bio, pb->pb_pages[map_i],
- nbytes, offset) < nbytes)
- break;
-
- offset = 0;
- sector += nbytes >> BBSHIFT;
- size -= nbytes;
- total_nr_pages--;
- }
-
-submit_io:
- if (likely(bio->bi_size)) {
- submit_bio((pb->pb_flags & PBF_READ) ? READ : WRITE, bio);
- if (size)
- goto next_chunk;
- } else {
- bio_put(bio);
- pagebuf_ioerror(pb, EIO);
- }
-
- if (pb->pb_flags & _PBF_RUN_QUEUES) {
- pb->pb_flags &= ~_PBF_RUN_QUEUES;
- if (atomic_read(&pb->pb_io_remaining) > 1)
- blk_run_address_space(pb->pb_target->pbr_mapping);
- }
-}
-
-/*
- * pagebuf_iorequest -- the core I/O request routine.
- */
-int
-pagebuf_iorequest( /* start real I/O */
- xfs_buf_t *pb) /* buffer to convey to device */
-{
- PB_TRACE(pb, "iorequest", 0);
-
- if (pb->pb_flags & PBF_DELWRI) {
- pagebuf_delwri_queue(pb, 1);
- return 0;
- }
-
- if (pb->pb_flags & PBF_WRITE) {
- _pagebuf_wait_unpin(pb);
- }
-
- pagebuf_hold(pb);
-
- /* Set the count to 1 initially, this will stop an I/O
- * completion callout which happens before we have started
- * all the I/O from calling pagebuf_iodone too early.
- */
- atomic_set(&pb->pb_io_remaining, 1);
- _pagebuf_ioapply(pb);
- _pagebuf_iodone(pb, 0);
-
- pagebuf_rele(pb);
- return 0;
-}
-
-/*
- * pagebuf_iowait
- *
- * pagebuf_iowait waits for I/O to complete on the buffer supplied.
- * It returns immediately if no I/O is pending. In any case, it returns
- * the error code, if any, or 0 if there is no error.
- */
-int
-pagebuf_iowait(
- xfs_buf_t *pb)
-{
- PB_TRACE(pb, "iowait", 0);
- if (atomic_read(&pb->pb_io_remaining))
- blk_run_address_space(pb->pb_target->pbr_mapping);
- down(&pb->pb_iodonesema);
- PB_TRACE(pb, "iowaited", (long)pb->pb_error);
- return pb->pb_error;
-}
-
-caddr_t
-pagebuf_offset(
- xfs_buf_t *pb,
- size_t offset)
-{
- struct page *page;
-
- offset += pb->pb_offset;
-
- page = pb->pb_pages[offset >> PAGE_CACHE_SHIFT];
- return (caddr_t) page_address(page) + (offset & (PAGE_CACHE_SIZE - 1));
-}
-
-/*
- * pagebuf_iomove
- *
- * Move data into or out of a buffer.
- */
-void
-pagebuf_iomove(
- xfs_buf_t *pb, /* buffer to process */
- size_t boff, /* starting buffer offset */
- size_t bsize, /* length to copy */
- caddr_t data, /* data address */
- page_buf_rw_t mode) /* read/write flag */
-{
- size_t bend, cpoff, csize;
- struct page *page;
-
- bend = boff + bsize;
- while (boff < bend) {
- page = pb->pb_pages[page_buf_btoct(boff + pb->pb_offset)];
- cpoff = page_buf_poff(boff + pb->pb_offset);
- csize = min_t(size_t,
- PAGE_CACHE_SIZE-cpoff, pb->pb_count_desired-boff);
-
- ASSERT(((csize + cpoff) <= PAGE_CACHE_SIZE));
-
- switch (mode) {
- case PBRW_ZERO:
- memset(page_address(page) + cpoff, 0, csize);
- break;
- case PBRW_READ:
- memcpy(data, page_address(page) + cpoff, csize);
- break;
- case PBRW_WRITE:
- memcpy(page_address(page) + cpoff, data, csize);
- }
-
- boff += csize;
- data += csize;
- }
-}
-
-/*
- * Handling of buftargs.
- */
-
-void
-xfs_free_buftarg(
- xfs_buftarg_t *btp,
- int external)
-{
- xfs_flush_buftarg(btp, 1);
- if (external)
- xfs_blkdev_put(btp->pbr_bdev);
- kmem_free(btp, sizeof(*btp));
-}
-
-void
-xfs_incore_relse(
- xfs_buftarg_t *btp,
- int delwri_only,
- int wait)
-{
- invalidate_bdev(btp->pbr_bdev, 1);
- truncate_inode_pages(btp->pbr_mapping, 0LL);
-}
-
-void
-xfs_setsize_buftarg(
- xfs_buftarg_t *btp,
- unsigned int blocksize,
- unsigned int sectorsize)
-{
- btp->pbr_bsize = blocksize;
- btp->pbr_sshift = ffs(sectorsize) - 1;
- btp->pbr_smask = sectorsize - 1;
-
- if (set_blocksize(btp->pbr_bdev, sectorsize)) {
- printk(KERN_WARNING
- "XFS: Cannot set_blocksize to %u on device %s\n",
- sectorsize, XFS_BUFTARG_NAME(btp));
- }
-}
-
-xfs_buftarg_t *
-xfs_alloc_buftarg(
- struct block_device *bdev)
-{
- xfs_buftarg_t *btp;
-
- btp = kmem_zalloc(sizeof(*btp), KM_SLEEP);
-
- btp->pbr_dev = bdev->bd_dev;
- btp->pbr_bdev = bdev;
- btp->pbr_mapping = bdev->bd_inode->i_mapping;
- xfs_setsize_buftarg(btp, PAGE_CACHE_SIZE, bdev_hardsect_size(bdev));
-
- return btp;
-}
-
-
-/*
- * Pagebuf delayed write buffer handling
- */
-
-STATIC LIST_HEAD(pbd_delwrite_queue);
-STATIC spinlock_t pbd_delwrite_lock = SPIN_LOCK_UNLOCKED;
-
-STATIC void
-pagebuf_delwri_queue(
- xfs_buf_t *pb,
- int unlock)
-{
- PB_TRACE(pb, "delwri_q", (long)unlock);
- ASSERT(pb->pb_flags & PBF_DELWRI);
-
- spin_lock(&pbd_delwrite_lock);
- /* If already in the queue, dequeue and place at tail */
- if (!list_empty(&pb->pb_list)) {
- if (unlock) {
- atomic_dec(&pb->pb_hold);
- }
- list_del(&pb->pb_list);
- }
-
- list_add_tail(&pb->pb_list, &pbd_delwrite_queue);
- pb->pb_queuetime = jiffies;
- spin_unlock(&pbd_delwrite_lock);
-
- if (unlock)
- pagebuf_unlock(pb);
-}
-
-void
-pagebuf_delwri_dequeue(
- xfs_buf_t *pb)
-{
- PB_TRACE(pb, "delwri_uq", 0);
- spin_lock(&pbd_delwrite_lock);
- list_del_init(&pb->pb_list);
- pb->pb_flags &= ~PBF_DELWRI;
- spin_unlock(&pbd_delwrite_lock);
-}
-
-STATIC void
-pagebuf_runall_queues(
- struct workqueue_struct *queue)
-{
- flush_workqueue(queue);
-}
-
-/* Defines for pagebuf daemon */
-STATIC DECLARE_COMPLETION(pagebuf_daemon_done);
-STATIC struct task_struct *pagebuf_daemon_task;
-STATIC int pagebuf_daemon_active;
-STATIC int force_flush;
-
-STATIC void
-pagebuf_daemon_wakeup(void)
-{
- force_flush = 1;
- barrier();
- wake_up_process(pagebuf_daemon_task);
-}
-
-STATIC int
-pagebuf_daemon(
- void *data)
-{
- struct list_head tmp;
- xfs_buf_t *pb, *n;
-
- /* Set up the thread */
- daemonize("xfsbufd");
- current->flags |= PF_MEMALLOC;
-
- pagebuf_daemon_task = current;
- pagebuf_daemon_active = 1;
- barrier();
-
- INIT_LIST_HEAD(&tmp);
- do {
- /* swsusp */
- if (current->flags & PF_FREEZE)
- refrigerator(PF_FREEZE);
-
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(xfs_flush_interval);
-
- spin_lock(&pbd_delwrite_lock);
- list_for_each_entry_safe(pb, n, &pbd_delwrite_queue, pb_list) {
- PB_TRACE(pb, "walkq1", (long)pagebuf_ispin(pb));
- ASSERT(pb->pb_flags & PBF_DELWRI);
-
- if (!pagebuf_ispin(pb) && !pagebuf_cond_lock(pb)) {
- if (!force_flush &&
- time_before(jiffies,
- pb->pb_queuetime +
- xfs_age_buffer)) {
- pagebuf_unlock(pb);
- break;
- }
-
- pb->pb_flags &= ~PBF_DELWRI;
- pb->pb_flags |= PBF_WRITE;
- list_move(&pb->pb_list, &tmp);
- }
- }
- spin_unlock(&pbd_delwrite_lock);
-
- while (!list_empty(&tmp)) {
- pb = list_entry(tmp.next, xfs_buf_t, pb_list);
- list_del_init(&pb->pb_list);
- pagebuf_iostrategy(pb);
- blk_run_address_space(pb->pb_target->pbr_mapping);
- }
-
- if (as_list_len > 0)
- purge_addresses();
-
- force_flush = 0;
- } while (pagebuf_daemon_active);
-
- complete_and_exit(&pagebuf_daemon_done, 0);
-}
-
-/*
- * Go through all incore buffers, and release buffers if they belong to
- * the given device. This is used in filesystem error handling to
- * preserve the consistency of its metadata.
- */
-int
-xfs_flush_buftarg(
- xfs_buftarg_t *target,
- int wait)
-{
- struct list_head tmp;
- xfs_buf_t *pb, *n;
- int pincount = 0;
-
- pagebuf_runall_queues(pagebuf_dataio_workqueue);
- pagebuf_runall_queues(pagebuf_logio_workqueue);
-
- INIT_LIST_HEAD(&tmp);
- spin_lock(&pbd_delwrite_lock);
- list_for_each_entry_safe(pb, n, &pbd_delwrite_queue, pb_list) {
-
- if (pb->pb_target != target)
- continue;
-
- ASSERT(pb->pb_flags & PBF_DELWRI);
- PB_TRACE(pb, "walkq2", (long)pagebuf_ispin(pb));
- if (pagebuf_ispin(pb)) {
- pincount++;
- continue;
- }
-
- pb->pb_flags &= ~PBF_DELWRI;
- pb->pb_flags |= PBF_WRITE;
- list_move(&pb->pb_list, &tmp);
- }
- spin_unlock(&pbd_delwrite_lock);
-
- /*
- * Dropped the delayed write list lock, now walk the temporary list
- */
- list_for_each_entry_safe(pb, n, &tmp, pb_list) {
- if (wait)
- pb->pb_flags &= ~PBF_ASYNC;
- else
- list_del_init(&pb->pb_list);
-
- pagebuf_lock(pb);
- pagebuf_iostrategy(pb);
- }
-
- /*
- * Remaining list items must be flushed before returning
- */
- while (!list_empty(&tmp)) {
- pb = list_entry(tmp.next, xfs_buf_t, pb_list);
-
- list_del_init(&pb->pb_list);
- xfs_iowait(pb);
- xfs_buf_relse(pb);
- }
-
- if (wait)
- blk_run_address_space(target->pbr_mapping);
-
- return pincount;
-}
-
-STATIC int
-pagebuf_daemon_start(void)
-{
- int rval;
-
- pagebuf_logio_workqueue = create_workqueue("xfslogd");
- if (!pagebuf_logio_workqueue)
- return -ENOMEM;
-
- pagebuf_dataio_workqueue = create_workqueue("xfsdatad");
- if (!pagebuf_dataio_workqueue) {
- destroy_workqueue(pagebuf_logio_workqueue);
- return -ENOMEM;
- }
-
- rval = kernel_thread(pagebuf_daemon, NULL, CLONE_FS|CLONE_FILES);
- if (rval < 0) {
- destroy_workqueue(pagebuf_logio_workqueue);
- destroy_workqueue(pagebuf_dataio_workqueue);
- }
-
- return rval;
-}
-
-/*
- * pagebuf_daemon_stop
- *
- * Note: do not mark as __exit, it is called from pagebuf_terminate.
- */
-STATIC void
-pagebuf_daemon_stop(void)
-{
- pagebuf_daemon_active = 0;
- barrier();
- wait_for_completion(&pagebuf_daemon_done);
-
- destroy_workqueue(pagebuf_logio_workqueue);
- destroy_workqueue(pagebuf_dataio_workqueue);
-}
-
-/*
- * Initialization and Termination
- */
-
-int __init
-pagebuf_init(void)
-{
- int i;
-
- pagebuf_cache = kmem_cache_create("xfs_buf_t", sizeof(xfs_buf_t), 0,
- SLAB_HWCACHE_ALIGN, NULL, NULL);
- if (pagebuf_cache == NULL) {
- printk("pagebuf: couldn't init pagebuf cache\n");
- pagebuf_terminate();
- return -ENOMEM;
- }
-
- for (i = 0; i < NHASH; i++) {
- spin_lock_init(&pbhash[i].pb_hash_lock);
- INIT_LIST_HEAD(&pbhash[i].pb_hash);
- }
-
-#ifdef PAGEBUF_TRACE
- pagebuf_trace_buf = ktrace_alloc(PAGEBUF_TRACE_SIZE, KM_SLEEP);
-#endif
-
- pagebuf_daemon_start();
- return 0;
-}
-
-
-/*
- * pagebuf_terminate.
- *
- * Note: do not mark as __exit, this is also called from the __init code.
- */
-void
-pagebuf_terminate(void)
-{
- pagebuf_daemon_stop();
-
-#ifdef PAGEBUF_TRACE
- ktrace_free(pagebuf_trace_buf);
-#endif
-
- kmem_cache_destroy(pagebuf_cache);
-}
+++ /dev/null
-/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-/*
- * Written by Steve Lord, Jim Mostek, Russell Cattelan at SGI
- */
-
-#ifndef __XFS_BUF_H__
-#define __XFS_BUF_H__
-
-#include <linux/config.h>
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <asm/system.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/uio.h>
-
-/*
- * Base types
- */
-
-#define XFS_BUF_DADDR_NULL ((xfs_daddr_t) (-1LL))
-
-#define page_buf_ctob(pp) ((pp) * PAGE_CACHE_SIZE)
-#define page_buf_btoc(dd) (((dd) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT)
-#define page_buf_btoct(dd) ((dd) >> PAGE_CACHE_SHIFT)
-#define page_buf_poff(aa) ((aa) & ~PAGE_CACHE_MASK)
-
-typedef enum page_buf_rw_e {
- PBRW_READ = 1, /* transfer into target memory */
- PBRW_WRITE = 2, /* transfer from target memory */
- PBRW_ZERO = 3 /* Zero target memory */
-} page_buf_rw_t;
-
-
-typedef enum page_buf_flags_e { /* pb_flags values */
- PBF_READ = (1 << 0), /* buffer intended for reading from device */
- PBF_WRITE = (1 << 1), /* buffer intended for writing to device */
- PBF_MAPPED = (1 << 2), /* buffer mapped (pb_addr valid) */
- PBF_PARTIAL = (1 << 3), /* buffer partially read */
- PBF_ASYNC = (1 << 4), /* initiator will not wait for completion */
- PBF_NONE = (1 << 5), /* buffer not read at all */
- PBF_DELWRI = (1 << 6), /* buffer has dirty pages */
- PBF_STALE = (1 << 7), /* buffer has been staled, do not find it */
- PBF_FS_MANAGED = (1 << 8), /* filesystem controls freeing memory */
- PBF_FS_DATAIOD = (1 << 9), /* schedule IO completion on fs datad */
- PBF_FORCEIO = (1 << 10), /* ignore any cache state */
- PBF_FLUSH = (1 << 11), /* flush disk write cache */
- PBF_READ_AHEAD = (1 << 12), /* asynchronous read-ahead */
-
- /* flags used only as arguments to access routines */
- PBF_LOCK = (1 << 14), /* lock requested */
- PBF_TRYLOCK = (1 << 15), /* lock requested, but do not wait */
- PBF_DONT_BLOCK = (1 << 16), /* do not block in current thread */
-
- /* flags used only internally */
- _PBF_PAGE_CACHE = (1 << 17),/* backed by pagecache */
- _PBF_KMEM_ALLOC = (1 << 18),/* backed by kmem_alloc() */
- _PBF_RUN_QUEUES = (1 << 19),/* run block device task queue */
-} page_buf_flags_t;
-
-#define PBF_UPDATE (PBF_READ | PBF_WRITE)
-#define PBF_NOT_DONE(pb) (((pb)->pb_flags & (PBF_PARTIAL|PBF_NONE)) != 0)
-#define PBF_DONE(pb) (((pb)->pb_flags & (PBF_PARTIAL|PBF_NONE)) == 0)
-
-typedef struct xfs_buftarg {
- dev_t pbr_dev;
- struct block_device *pbr_bdev;
- struct address_space *pbr_mapping;
- unsigned int pbr_bsize;
- unsigned int pbr_sshift;
- size_t pbr_smask;
-} xfs_buftarg_t;
-
-/*
- * xfs_buf_t: Buffer structure for page cache-based buffers
- *
- * This buffer structure is used by the page cache buffer management routines
- * to refer to an assembly of pages forming a logical buffer. The actual
- * I/O is performed with buffer_head or bio structures, as required by drivers,
- * for drivers which do not understand this structure. The buffer structure is
- * used on temporary basis only, and discarded when released.
- *
- * The real data storage is recorded in the page cache. Metadata is
- * hashed to the inode for the block device on which the file system resides.
- * File data is hashed to the inode for the file. Pages which are only
- * partially filled with data have bits set in their block_map entry
- * to indicate which disk blocks in the page are not valid.
- */
-
-struct xfs_buf;
-typedef void (*page_buf_iodone_t)(struct xfs_buf *);
- /* call-back function on I/O completion */
-typedef void (*page_buf_relse_t)(struct xfs_buf *);
- /* call-back function on I/O completion */
-typedef int (*page_buf_bdstrat_t)(struct xfs_buf *);
-
-#define PB_PAGES 4
-
-typedef struct xfs_buf {
- struct semaphore pb_sema; /* semaphore for lockables */
- unsigned long pb_queuetime; /* time buffer was queued */
- atomic_t pb_pin_count; /* pin count */
- wait_queue_head_t pb_waiters; /* unpin waiters */
- struct list_head pb_list;
- page_buf_flags_t pb_flags; /* status flags */
- struct list_head pb_hash_list;
- xfs_buftarg_t *pb_target; /* logical object */
- atomic_t pb_hold; /* reference count */
- xfs_daddr_t pb_bn; /* block number for I/O */
- loff_t pb_file_offset; /* offset in file */
- size_t pb_buffer_length; /* size of buffer in bytes */
- size_t pb_count_desired; /* desired transfer size */
- void *pb_addr; /* virtual address of buffer */
- struct work_struct pb_iodone_work;
- atomic_t pb_io_remaining;/* #outstanding I/O requests */
- page_buf_iodone_t pb_iodone; /* I/O completion function */
- page_buf_relse_t pb_relse; /* releasing function */
- page_buf_bdstrat_t pb_strat; /* pre-write function */
- struct semaphore pb_iodonesema; /* Semaphore for I/O waiters */
- void *pb_fspriv;
- void *pb_fspriv2;
- void *pb_fspriv3;
- unsigned short pb_error; /* error code on I/O */
- unsigned short pb_page_count; /* size of page array */
- unsigned short pb_offset; /* page offset in first page */
- unsigned char pb_locked; /* page array is locked */
- unsigned char pb_hash_index; /* hash table index */
- struct page **pb_pages; /* array of page pointers */
- struct page *pb_page_array[PB_PAGES]; /* inline pages */
-#ifdef PAGEBUF_LOCK_TRACKING
- int pb_last_holder;
-#endif
-} xfs_buf_t;
-
-
-/* Finding and Reading Buffers */
-
-extern xfs_buf_t *pagebuf_find( /* find buffer for block if */
- /* the block is in memory */
- xfs_buftarg_t *, /* inode for block */
- loff_t, /* starting offset of range */
- size_t, /* length of range */
- page_buf_flags_t); /* PBF_LOCK */
-
-extern xfs_buf_t *pagebuf_get( /* allocate a buffer */
- xfs_buftarg_t *, /* inode for buffer */
- loff_t, /* starting offset of range */
- size_t, /* length of range */
- page_buf_flags_t); /* PBF_LOCK, PBF_READ, */
- /* PBF_ASYNC */
-
-extern xfs_buf_t *pagebuf_lookup(
- xfs_buftarg_t *,
- loff_t, /* starting offset of range */
- size_t, /* length of range */
- page_buf_flags_t); /* PBF_READ, PBF_WRITE, */
- /* PBF_FORCEIO, */
-
-extern xfs_buf_t *pagebuf_get_empty( /* allocate pagebuf struct with */
- /* no memory or disk address */
- size_t len,
- xfs_buftarg_t *); /* mount point "fake" inode */
-
-extern xfs_buf_t *pagebuf_get_no_daddr(/* allocate pagebuf struct */
- /* without disk address */
- size_t len,
- xfs_buftarg_t *); /* mount point "fake" inode */
-
-extern int pagebuf_associate_memory(
- xfs_buf_t *,
- void *,
- size_t);
-
-extern void pagebuf_hold( /* increment reference count */
- xfs_buf_t *); /* buffer to hold */
-
-extern void pagebuf_readahead( /* read ahead into cache */
- xfs_buftarg_t *, /* target for buffer (or NULL) */
- loff_t, /* starting offset of range */
- size_t, /* length of range */
- page_buf_flags_t); /* additional read flags */
-
-/* Releasing Buffers */
-
-extern void pagebuf_free( /* deallocate a buffer */
- xfs_buf_t *); /* buffer to deallocate */
-
-extern void pagebuf_rele( /* release hold on a buffer */
- xfs_buf_t *); /* buffer to release */
-
-/* Locking and Unlocking Buffers */
-
-extern int pagebuf_cond_lock( /* lock buffer, if not locked */
- /* (returns -EBUSY if locked) */
- xfs_buf_t *); /* buffer to lock */
-
-extern int pagebuf_lock_value( /* return count on lock */
- xfs_buf_t *); /* buffer to check */
-
-extern int pagebuf_lock( /* lock buffer */
- xfs_buf_t *); /* buffer to lock */
-
-extern void pagebuf_unlock( /* unlock buffer */
- xfs_buf_t *); /* buffer to unlock */
-
-/* Buffer Read and Write Routines */
-
-extern void pagebuf_iodone( /* mark buffer I/O complete */
- xfs_buf_t *, /* buffer to mark */
- int, /* use data/log helper thread. */
- int); /* run completion locally, or in
- * a helper thread. */
-
-extern void pagebuf_ioerror( /* mark buffer in error (or not) */
- xfs_buf_t *, /* buffer to mark */
- int); /* error to store (0 if none) */
-
-extern int pagebuf_iostart( /* start I/O on a buffer */
- xfs_buf_t *, /* buffer to start */
- page_buf_flags_t); /* PBF_LOCK, PBF_ASYNC, */
- /* PBF_READ, PBF_WRITE, */
- /* PBF_DELWRI */
-
-extern int pagebuf_iorequest( /* start real I/O */
- xfs_buf_t *); /* buffer to convey to device */
-
-extern int pagebuf_iowait( /* wait for buffer I/O done */
- xfs_buf_t *); /* buffer to wait on */
-
-extern void pagebuf_iomove( /* move data in/out of pagebuf */
- xfs_buf_t *, /* buffer to manipulate */
- size_t, /* starting buffer offset */
- size_t, /* length in buffer */
- caddr_t, /* data pointer */
- page_buf_rw_t); /* direction */
-
-static inline int pagebuf_iostrategy(xfs_buf_t *pb)
-{
- return pb->pb_strat ? pb->pb_strat(pb) : pagebuf_iorequest(pb);
-}
-
-static inline int pagebuf_geterror(xfs_buf_t *pb)
-{
- return pb ? pb->pb_error : ENOMEM;
-}
-
-/* Buffer Utility Routines */
-
-extern caddr_t pagebuf_offset( /* pointer at offset in buffer */
- xfs_buf_t *, /* buffer to offset into */
- size_t); /* offset */
-
-/* Pinning Buffer Storage in Memory */
-
-extern void pagebuf_pin( /* pin buffer in memory */
- xfs_buf_t *); /* buffer to pin */
-
-extern void pagebuf_unpin( /* unpin buffered data */
- xfs_buf_t *); /* buffer to unpin */
-
-extern int pagebuf_ispin( /* check if buffer is pinned */
- xfs_buf_t *); /* buffer to check */
-
-/* Delayed Write Buffer Routines */
-
-extern void pagebuf_delwri_dequeue(xfs_buf_t *);
-
-/* Buffer Daemon Setup Routines */
-
-extern int pagebuf_init(void);
-extern void pagebuf_terminate(void);
-
-
-#ifdef PAGEBUF_TRACE
-extern ktrace_t *pagebuf_trace_buf;
-extern void pagebuf_trace(
- xfs_buf_t *, /* buffer being traced */
- char *, /* description of operation */
- void *, /* arbitrary diagnostic value */
- void *); /* return address */
-#else
-# define pagebuf_trace(pb, id, ptr, ra) do { } while (0)
-#endif
-
-#define pagebuf_target_name(target) \
- ({ char __b[BDEVNAME_SIZE]; bdevname((target)->pbr_bdev, __b); __b; })
-
-
-
-
-
-/* These are just for xfs_syncsub... it sets an internal variable
- * then passes it to VOP_FLUSH_PAGES or adds the flags to a newly gotten buf_t
- */
-#define XFS_B_ASYNC PBF_ASYNC
-#define XFS_B_DELWRI PBF_DELWRI
-#define XFS_B_READ PBF_READ
-#define XFS_B_WRITE PBF_WRITE
-#define XFS_B_STALE PBF_STALE
-
-#define XFS_BUF_TRYLOCK PBF_TRYLOCK
-#define XFS_INCORE_TRYLOCK PBF_TRYLOCK
-#define XFS_BUF_LOCK PBF_LOCK
-#define XFS_BUF_MAPPED PBF_MAPPED
-
-#define BUF_BUSY PBF_DONT_BLOCK
-
-#define XFS_BUF_BFLAGS(x) ((x)->pb_flags)
-#define XFS_BUF_ZEROFLAGS(x) \
- ((x)->pb_flags &= ~(PBF_READ|PBF_WRITE|PBF_ASYNC|PBF_DELWRI))
-
-#define XFS_BUF_STALE(x) ((x)->pb_flags |= XFS_B_STALE)
-#define XFS_BUF_UNSTALE(x) ((x)->pb_flags &= ~XFS_B_STALE)
-#define XFS_BUF_ISSTALE(x) ((x)->pb_flags & XFS_B_STALE)
-#define XFS_BUF_SUPER_STALE(x) do { \
- XFS_BUF_STALE(x); \
- xfs_buf_undelay(x); \
- XFS_BUF_DONE(x); \
- } while (0)
-
-#define XFS_BUF_MANAGE PBF_FS_MANAGED
-#define XFS_BUF_UNMANAGE(x) ((x)->pb_flags &= ~PBF_FS_MANAGED)
-
-static inline void xfs_buf_undelay(xfs_buf_t *pb)
-{
- if (pb->pb_flags & PBF_DELWRI) {
- if (pb->pb_list.next != &pb->pb_list) {
- pagebuf_delwri_dequeue(pb);
- pagebuf_rele(pb);
- } else {
- pb->pb_flags &= ~PBF_DELWRI;
- }
- }
-}
-
-#define XFS_BUF_DELAYWRITE(x) ((x)->pb_flags |= PBF_DELWRI)
-#define XFS_BUF_UNDELAYWRITE(x) xfs_buf_undelay(x)
-#define XFS_BUF_ISDELAYWRITE(x) ((x)->pb_flags & PBF_DELWRI)
-
-#define XFS_BUF_ERROR(x,no) pagebuf_ioerror(x,no)
-#define XFS_BUF_GETERROR(x) pagebuf_geterror(x)
-#define XFS_BUF_ISERROR(x) (pagebuf_geterror(x)?1:0)
-
-#define XFS_BUF_DONE(x) ((x)->pb_flags &= ~(PBF_PARTIAL|PBF_NONE))
-#define XFS_BUF_UNDONE(x) ((x)->pb_flags |= PBF_PARTIAL|PBF_NONE)
-#define XFS_BUF_ISDONE(x) (!(PBF_NOT_DONE(x)))
-
-#define XFS_BUF_BUSY(x) ((x)->pb_flags |= PBF_FORCEIO)
-#define XFS_BUF_UNBUSY(x) ((x)->pb_flags &= ~PBF_FORCEIO)
-#define XFS_BUF_ISBUSY(x) (1)
-
-#define XFS_BUF_ASYNC(x) ((x)->pb_flags |= PBF_ASYNC)
-#define XFS_BUF_UNASYNC(x) ((x)->pb_flags &= ~PBF_ASYNC)
-#define XFS_BUF_ISASYNC(x) ((x)->pb_flags & PBF_ASYNC)
-
-#define XFS_BUF_FLUSH(x) ((x)->pb_flags |= PBF_FLUSH)
-#define XFS_BUF_UNFLUSH(x) ((x)->pb_flags &= ~PBF_FLUSH)
-#define XFS_BUF_ISFLUSH(x) ((x)->pb_flags & PBF_FLUSH)
-
-#define XFS_BUF_SHUT(x) printk("XFS_BUF_SHUT not implemented yet\n")
-#define XFS_BUF_UNSHUT(x) printk("XFS_BUF_UNSHUT not implemented yet\n")
-#define XFS_BUF_ISSHUT(x) (0)
-
-#define XFS_BUF_HOLD(x) pagebuf_hold(x)
-#define XFS_BUF_READ(x) ((x)->pb_flags |= PBF_READ)
-#define XFS_BUF_UNREAD(x) ((x)->pb_flags &= ~PBF_READ)
-#define XFS_BUF_ISREAD(x) ((x)->pb_flags & PBF_READ)
-
-#define XFS_BUF_WRITE(x) ((x)->pb_flags |= PBF_WRITE)
-#define XFS_BUF_UNWRITE(x) ((x)->pb_flags &= ~PBF_WRITE)
-#define XFS_BUF_ISWRITE(x) ((x)->pb_flags & PBF_WRITE)
-
-#define XFS_BUF_ISUNINITIAL(x) (0)
-#define XFS_BUF_UNUNINITIAL(x) (0)
-
-#define XFS_BUF_BP_ISMAPPED(bp) 1
-
-#define XFS_BUF_DATAIO(x) ((x)->pb_flags |= PBF_FS_DATAIOD)
-#define XFS_BUF_UNDATAIO(x) ((x)->pb_flags &= ~PBF_FS_DATAIOD)
-
-#define XFS_BUF_IODONE_FUNC(buf) (buf)->pb_iodone
-#define XFS_BUF_SET_IODONE_FUNC(buf, func) \
- (buf)->pb_iodone = (func)
-#define XFS_BUF_CLR_IODONE_FUNC(buf) \
- (buf)->pb_iodone = NULL
-#define XFS_BUF_SET_BDSTRAT_FUNC(buf, func) \
- (buf)->pb_strat = (func)
-#define XFS_BUF_CLR_BDSTRAT_FUNC(buf) \
- (buf)->pb_strat = NULL
-
-#define XFS_BUF_FSPRIVATE(buf, type) \
- ((type)(buf)->pb_fspriv)
-#define XFS_BUF_SET_FSPRIVATE(buf, value) \
- (buf)->pb_fspriv = (void *)(value)
-#define XFS_BUF_FSPRIVATE2(buf, type) \
- ((type)(buf)->pb_fspriv2)
-#define XFS_BUF_SET_FSPRIVATE2(buf, value) \
- (buf)->pb_fspriv2 = (void *)(value)
-#define XFS_BUF_FSPRIVATE3(buf, type) \
- ((type)(buf)->pb_fspriv3)
-#define XFS_BUF_SET_FSPRIVATE3(buf, value) \
- (buf)->pb_fspriv3 = (void *)(value)
-#define XFS_BUF_SET_START(buf)
-
-#define XFS_BUF_SET_BRELSE_FUNC(buf, value) \
- (buf)->pb_relse = (value)
-
-#define XFS_BUF_PTR(bp) (xfs_caddr_t)((bp)->pb_addr)
-
-extern inline xfs_caddr_t xfs_buf_offset(xfs_buf_t *bp, size_t offset)
-{
- if (bp->pb_flags & PBF_MAPPED)
- return XFS_BUF_PTR(bp) + offset;
- return (xfs_caddr_t) pagebuf_offset(bp, offset);
-}
-
-#define XFS_BUF_SET_PTR(bp, val, count) \
- pagebuf_associate_memory(bp, val, count)
-#define XFS_BUF_ADDR(bp) ((bp)->pb_bn)
-#define XFS_BUF_SET_ADDR(bp, blk) \
- ((bp)->pb_bn = (blk))
-#define XFS_BUF_OFFSET(bp) ((bp)->pb_file_offset)
-#define XFS_BUF_SET_OFFSET(bp, off) \
- ((bp)->pb_file_offset = (off))
-#define XFS_BUF_COUNT(bp) ((bp)->pb_count_desired)
-#define XFS_BUF_SET_COUNT(bp, cnt) \
- ((bp)->pb_count_desired = (cnt))
-#define XFS_BUF_SIZE(bp) ((bp)->pb_buffer_length)
-#define XFS_BUF_SET_SIZE(bp, cnt) \
- ((bp)->pb_buffer_length = (cnt))
-#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
-#define XFS_BUF_SET_VTYPE(bp, type)
-#define XFS_BUF_SET_REF(bp, ref)
-
-#define XFS_BUF_ISPINNED(bp) pagebuf_ispin(bp)
-
-#define XFS_BUF_VALUSEMA(bp) pagebuf_lock_value(bp)
-#define XFS_BUF_CPSEMA(bp) (pagebuf_cond_lock(bp) == 0)
-#define XFS_BUF_VSEMA(bp) pagebuf_unlock(bp)
-#define XFS_BUF_PSEMA(bp,x) pagebuf_lock(bp)
-#define XFS_BUF_V_IODONESEMA(bp) up(&bp->pb_iodonesema);
-
-/* setup the buffer target from a buftarg structure */
-#define XFS_BUF_SET_TARGET(bp, target) \
- (bp)->pb_target = (target)
-#define XFS_BUF_TARGET(bp) ((bp)->pb_target)
-#define XFS_BUFTARG_NAME(target) \
- pagebuf_target_name(target)
-
-#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
-#define XFS_BUF_SET_VTYPE(bp, type)
-#define XFS_BUF_SET_REF(bp, ref)
-
-#define xfs_buf_read(target, blkno, len, flags) \
- pagebuf_get((target), (blkno), (len), \
- PBF_LOCK | PBF_READ | PBF_MAPPED)
-#define xfs_buf_get(target, blkno, len, flags) \
- pagebuf_get((target), (blkno), (len), \
- PBF_LOCK | PBF_MAPPED)
-
-#define xfs_buf_read_flags(target, blkno, len, flags) \
- pagebuf_get((target), (blkno), (len), PBF_READ | (flags))
-#define xfs_buf_get_flags(target, blkno, len, flags) \
- pagebuf_get((target), (blkno), (len), (flags))
-
-static inline int xfs_bawrite(void *mp, xfs_buf_t *bp)
-{
- bp->pb_fspriv3 = mp;
- bp->pb_strat = xfs_bdstrat_cb;
- xfs_buf_undelay(bp);
- return pagebuf_iostart(bp, PBF_WRITE | PBF_ASYNC | _PBF_RUN_QUEUES);
-}
-
-static inline void xfs_buf_relse(xfs_buf_t *bp)
-{
- if (!bp->pb_relse)
- pagebuf_unlock(bp);
- pagebuf_rele(bp);
-}
-
-#define xfs_bpin(bp) pagebuf_pin(bp)
-#define xfs_bunpin(bp) pagebuf_unpin(bp)
-
-#define xfs_buftrace(id, bp) \
- pagebuf_trace(bp, id, NULL, (void *)__builtin_return_address(0))
-
-#define xfs_biodone(pb) \
- pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), 0)
-
-#define xfs_incore(buftarg,blkno,len,lockit) \
- pagebuf_find(buftarg, blkno ,len, lockit)
-
-
-#define xfs_biomove(pb, off, len, data, rw) \
- pagebuf_iomove((pb), (off), (len), (data), \
- ((rw) == XFS_B_WRITE) ? PBRW_WRITE : PBRW_READ)
-
-#define xfs_biozero(pb, off, len) \
- pagebuf_iomove((pb), (off), (len), NULL, PBRW_ZERO)
-
-
-static inline int XFS_bwrite(xfs_buf_t *pb)
-{
- int iowait = (pb->pb_flags & PBF_ASYNC) == 0;
- int error = 0;
-
- if (!iowait)
- pb->pb_flags |= _PBF_RUN_QUEUES;
-
- xfs_buf_undelay(pb);
- pagebuf_iostrategy(pb);
- if (iowait) {
- error = pagebuf_iowait(pb);
- xfs_buf_relse(pb);
- }
- return error;
-}
-
-#define XFS_bdwrite(pb) \
- pagebuf_iostart(pb, PBF_DELWRI | PBF_ASYNC)
-
-static inline int xfs_bdwrite(void *mp, xfs_buf_t *bp)
-{
- bp->pb_strat = xfs_bdstrat_cb;
- bp->pb_fspriv3 = mp;
-
- return pagebuf_iostart(bp, PBF_DELWRI | PBF_ASYNC);
-}
-
-#define XFS_bdstrat(bp) pagebuf_iorequest(bp)
-
-#define xfs_iowait(pb) pagebuf_iowait(pb)
-
-#define xfs_baread(target, rablkno, ralen) \
- pagebuf_readahead((target), (rablkno), (ralen), PBF_DONT_BLOCK)
-
-#define xfs_buf_get_empty(len, target) pagebuf_get_empty((len), (target))
-#define xfs_buf_get_noaddr(len, target) pagebuf_get_no_daddr((len), (target))
-#define xfs_buf_free(bp) pagebuf_free(bp)
-
-
-/*
- * Handling of buftargs.
- */
-
-extern xfs_buftarg_t *xfs_alloc_buftarg(struct block_device *);
-extern void xfs_free_buftarg(xfs_buftarg_t *, int);
-extern void xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int);
-extern void xfs_incore_relse(xfs_buftarg_t *, int, int);
-extern int xfs_flush_buftarg(xfs_buftarg_t *, int);
-
-#define xfs_getsize_buftarg(buftarg) \
- block_size((buftarg)->pbr_bdev)
-#define xfs_readonly_buftarg(buftarg) \
- bdev_read_only((buftarg)->pbr_bdev)
-#define xfs_binval(buftarg) \
- xfs_flush_buftarg(buftarg, 1)
-#define XFS_bflush(buftarg) \
- xfs_flush_buftarg(buftarg, 1)
-
-#endif /* __XFS_BUF_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_CRED_H__
-#define __XFS_CRED_H__
-
-/*
- * Credentials
- */
-typedef struct cred {
- /* EMPTY */
-} cred_t;
-
-extern struct cred *sys_cred;
-
-/* this is a hack.. (assums sys_cred is the only cred_t in the system) */
-static __inline int capable_cred(cred_t *cr, int cid)
-{
- return (cr == sys_cred) ? 1 : capable(cid);
-}
-
-#endif /* __XFS_CRED_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-#include "xfs_inum.h"
-#include "xfs_log.h"
-#include "xfs_sb.h"
-#include "xfs_dir.h"
-#include "xfs_dir2.h"
-#include "xfs_trans.h"
-#include "xfs_dmapi.h"
-#include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir_sf.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
-#include "xfs_error.h"
-#include "xfs_rw.h"
-
-#include <linux/dcache.h>
-
-static struct vm_operations_struct linvfs_file_vm_ops;
-
-
-STATIC inline ssize_t
-__linvfs_read(
- struct kiocb *iocb,
- char __user *buf,
- int ioflags,
- size_t count,
- loff_t pos)
-{
- struct iovec iov = {buf, count};
- struct file *file = iocb->ki_filp;
- vnode_t *vp = LINVFS_GET_VP(file->f_dentry->d_inode);
- ssize_t rval;
-
- BUG_ON(iocb->ki_pos != pos);
-
- if (unlikely(file->f_flags & O_DIRECT))
- ioflags |= IO_ISDIRECT;
- VOP_READ(vp, iocb, &iov, 1, &iocb->ki_pos, ioflags, NULL, rval);
- return rval;
-}
-
-
-STATIC ssize_t
-linvfs_read(
- struct kiocb *iocb,
- char __user *buf,
- size_t count,
- loff_t pos)
-{
- return __linvfs_read(iocb, buf, 0, count, pos);
-}
-
-STATIC ssize_t
-linvfs_read_invis(
- struct kiocb *iocb,
- char __user *buf,
- size_t count,
- loff_t pos)
-{
- return __linvfs_read(iocb, buf, IO_INVIS, count, pos);
-}
-
-
-STATIC inline ssize_t
-__linvfs_write(
- struct kiocb *iocb,
- const char *buf,
- int ioflags,
- size_t count,
- loff_t pos)
-{
- struct iovec iov = {(void *)buf, count};
- struct file *file = iocb->ki_filp;
- struct inode *inode = file->f_mapping->host;
- vnode_t *vp = LINVFS_GET_VP(inode);
- ssize_t rval;
-
- BUG_ON(iocb->ki_pos != pos);
- if (unlikely(file->f_flags & O_DIRECT)) {
- ioflags |= IO_ISDIRECT;
- VOP_WRITE(vp, iocb, &iov, 1, &iocb->ki_pos,
- ioflags, NULL, rval);
- } else {
- down(&inode->i_sem);
- VOP_WRITE(vp, iocb, &iov, 1, &iocb->ki_pos,
- ioflags, NULL, rval);
- up(&inode->i_sem);
- }
-
- return rval;
-}
-
-
-STATIC ssize_t
-linvfs_write(
- struct kiocb *iocb,
- const char __user *buf,
- size_t count,
- loff_t pos)
-{
- return __linvfs_write(iocb, buf, 0, count, pos);
-}
-
-STATIC ssize_t
-linvfs_write_invis(
- struct kiocb *iocb,
- const char __user *buf,
- size_t count,
- loff_t pos)
-{
- return __linvfs_write(iocb, buf, IO_INVIS, count, pos);
-}
-
-
-STATIC inline ssize_t
-__linvfs_readv(
- struct file *file,
- const struct iovec *iov,
- int ioflags,
- unsigned long nr_segs,
- loff_t *ppos)
-{
- struct inode *inode = file->f_mapping->host;
- vnode_t *vp = LINVFS_GET_VP(inode);
- struct kiocb kiocb;
- ssize_t rval;
-
- init_sync_kiocb(&kiocb, file);
- kiocb.ki_pos = *ppos;
-
- if (unlikely(file->f_flags & O_DIRECT))
- ioflags |= IO_ISDIRECT;
- VOP_READ(vp, &kiocb, iov, nr_segs, &kiocb.ki_pos, ioflags, NULL, rval);
- if (rval == -EIOCBQUEUED)
- rval = wait_on_sync_kiocb(&kiocb);
-
- *ppos = kiocb.ki_pos;
- return rval;
-}
-
-STATIC ssize_t
-linvfs_readv(
- struct file *file,
- const struct iovec *iov,
- unsigned long nr_segs,
- loff_t *ppos)
-{
- return __linvfs_readv(file, iov, 0, nr_segs, ppos);
-}
-
-STATIC ssize_t
-linvfs_readv_invis(
- struct file *file,
- const struct iovec *iov,
- unsigned long nr_segs,
- loff_t *ppos)
-{
- return __linvfs_readv(file, iov, IO_INVIS, nr_segs, ppos);
-}
-
-
-STATIC inline ssize_t
-__linvfs_writev(
- struct file *file,
- const struct iovec *iov,
- int ioflags,
- unsigned long nr_segs,
- loff_t *ppos)
-{
- struct inode *inode = file->f_mapping->host;
- vnode_t *vp = LINVFS_GET_VP(inode);
- struct kiocb kiocb;
- ssize_t rval;
-
- init_sync_kiocb(&kiocb, file);
- kiocb.ki_pos = *ppos;
- if (unlikely(file->f_flags & O_DIRECT)) {
- ioflags |= IO_ISDIRECT;
- VOP_WRITE(vp, &kiocb, iov, nr_segs, &kiocb.ki_pos,
- ioflags, NULL, rval);
- } else {
- down(&inode->i_sem);
- VOP_WRITE(vp, &kiocb, iov, nr_segs, &kiocb.ki_pos,
- ioflags, NULL, rval);
- up(&inode->i_sem);
- }
-
- if (rval == -EIOCBQUEUED)
- rval = wait_on_sync_kiocb(&kiocb);
-
- *ppos = kiocb.ki_pos;
- return rval;
-}
-
-
-STATIC ssize_t
-linvfs_writev(
- struct file *file,
- const struct iovec *iov,
- unsigned long nr_segs,
- loff_t *ppos)
-{
- return __linvfs_writev(file, iov, 0, nr_segs, ppos);
-}
-
-STATIC ssize_t
-linvfs_writev_invis(
- struct file *file,
- const struct iovec *iov,
- unsigned long nr_segs,
- loff_t *ppos)
-{
- return __linvfs_writev(file, iov, IO_INVIS, nr_segs, ppos);
-}
-
-STATIC ssize_t
-linvfs_sendfile(
- struct file *filp,
- loff_t *ppos,
- size_t count,
- read_actor_t actor,
- void *target)
-{
- vnode_t *vp = LINVFS_GET_VP(filp->f_dentry->d_inode);
- int error;
-
- VOP_SENDFILE(vp, filp, ppos, 0, count, actor, target, NULL, error);
- return error;
-}
-
-
-STATIC int
-linvfs_open(
- struct inode *inode,
- struct file *filp)
-{
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error;
-
- if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
- return -EFBIG;
-
- ASSERT(vp);
- VOP_OPEN(vp, NULL, error);
- return -error;
-}
-
-
-STATIC int
-linvfs_release(
- struct inode *inode,
- struct file *filp)
-{
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error = 0;
-
- if (vp)
- VOP_RELEASE(vp, error);
- return -error;
-}
-
-
-STATIC int
-linvfs_fsync(
- struct file *filp,
- struct dentry *dentry,
- int datasync)
-{
- struct inode *inode = dentry->d_inode;
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error;
- int flags = FSYNC_WAIT;
-
- if (datasync)
- flags |= FSYNC_DATA;
-
- ASSERT(vp);
- VOP_FSYNC(vp, flags, NULL, (xfs_off_t)0, (xfs_off_t)-1, error);
- return -error;
-}
-
-/*
- * linvfs_readdir maps to VOP_READDIR().
- * We need to build a uio, cred, ...
- */
-
-#define nextdp(dp) ((struct xfs_dirent *)((char *)(dp) + (dp)->d_reclen))
-
-STATIC int
-linvfs_readdir(
- struct file *filp,
- void *dirent,
- filldir_t filldir)
-{
- int error = 0;
- vnode_t *vp;
- uio_t uio;
- iovec_t iov;
- int eof = 0;
- caddr_t read_buf;
- int namelen, size = 0;
- size_t rlen = PAGE_CACHE_SIZE;
- xfs_off_t start_offset, curr_offset;
- xfs_dirent_t *dbp = NULL;
-
- vp = LINVFS_GET_VP(filp->f_dentry->d_inode);
- ASSERT(vp);
-
- /* Try fairly hard to get memory */
- do {
- if ((read_buf = (caddr_t)kmalloc(rlen, GFP_KERNEL)))
- break;
- rlen >>= 1;
- } while (rlen >= 1024);
-
- if (read_buf == NULL)
- return -ENOMEM;
-
- uio.uio_iov = &iov;
- uio.uio_segflg = UIO_SYSSPACE;
- curr_offset = filp->f_pos;
- if (filp->f_pos != 0x7fffffff)
- uio.uio_offset = filp->f_pos;
- else
- uio.uio_offset = 0xffffffff;
-
- while (!eof) {
- uio.uio_resid = iov.iov_len = rlen;
- iov.iov_base = read_buf;
- uio.uio_iovcnt = 1;
-
- start_offset = uio.uio_offset;
-
- VOP_READDIR(vp, &uio, NULL, &eof, error);
- if ((uio.uio_offset == start_offset) || error) {
- size = 0;
- break;
- }
-
- size = rlen - uio.uio_resid;
- dbp = (xfs_dirent_t *)read_buf;
- while (size > 0) {
- namelen = strlen(dbp->d_name);
-
- if (filldir(dirent, dbp->d_name, namelen,
- (loff_t) curr_offset & 0x7fffffff,
- (ino_t) dbp->d_ino,
- DT_UNKNOWN)) {
- goto done;
- }
- size -= dbp->d_reclen;
- curr_offset = (loff_t)dbp->d_off /* & 0x7fffffff */;
- dbp = nextdp(dbp);
- }
- }
-done:
- if (!error) {
- if (size == 0)
- filp->f_pos = uio.uio_offset & 0x7fffffff;
- else if (dbp)
- filp->f_pos = curr_offset;
- }
-
- kfree(read_buf);
- return -error;
-}
-
-
-STATIC int
-linvfs_file_mmap(
- struct file *filp,
- struct vm_area_struct *vma)
-{
- struct inode *ip = filp->f_dentry->d_inode;
- vnode_t *vp = LINVFS_GET_VP(ip);
- vattr_t va = { .va_mask = XFS_AT_UPDATIME };
- int error;
-
- if ((vp->v_type == VREG) && (vp->v_vfsp->vfs_flag & VFS_DMI)) {
- xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp);
-
- error = -XFS_SEND_MMAP(mp, vma, 0);
- if (error)
- return error;
- }
-
- vma->vm_ops = &linvfs_file_vm_ops;
-
- VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error);
- return 0;
-}
-
-
-STATIC int
-linvfs_ioctl(
- struct inode *inode,
- struct file *filp,
- unsigned int cmd,
- unsigned long arg)
-{
- int error;
- vnode_t *vp = LINVFS_GET_VP(inode);
-
- ASSERT(vp);
- VOP_IOCTL(vp, inode, filp, 0, cmd, arg, error);
- VMODIFY(vp);
-
- /* NOTE: some of the ioctl's return positive #'s as a
- * byte count indicating success, such as
- * readlink_by_handle. So we don't "sign flip"
- * like most other routines. This means true
- * errors need to be returned as a negative value.
- */
- return error;
-}
-
-STATIC int
-linvfs_ioctl_invis(
- struct inode *inode,
- struct file *filp,
- unsigned int cmd,
- unsigned long arg)
-{
- int error;
- vnode_t *vp = LINVFS_GET_VP(inode);
-
- ASSERT(vp);
- VOP_IOCTL(vp, inode, filp, IO_INVIS, cmd, arg, error);
- VMODIFY(vp);
-
- /* NOTE: some of the ioctl's return positive #'s as a
- * byte count indicating success, such as
- * readlink_by_handle. So we don't "sign flip"
- * like most other routines. This means true
- * errors need to be returned as a negative value.
- */
- return error;
-}
-
-#ifdef HAVE_VMOP_MPROTECT
-STATIC int
-linvfs_mprotect(
- struct vm_area_struct *vma,
- unsigned int newflags)
-{
- vnode_t *vp = LINVFS_GET_VP(vma->vm_file->f_dentry->d_inode);
- int error = 0;
-
- if ((vp->v_type == VREG) && (vp->v_vfsp->vfs_flag & VFS_DMI)) {
- if ((vma->vm_flags & VM_MAYSHARE) &&
- (newflags & VM_WRITE) && !(vma->vm_flags & VM_WRITE)) {
- xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp);
-
- error = XFS_SEND_MMAP(mp, vma, VM_WRITE);
- }
- }
- return error;
-}
-#endif /* HAVE_VMOP_MPROTECT */
-
-
-struct file_operations linvfs_file_operations = {
- .llseek = generic_file_llseek,
- .read = do_sync_read,
- .write = do_sync_write,
- .readv = linvfs_readv,
- .writev = linvfs_writev,
- .aio_read = linvfs_read,
- .aio_write = linvfs_write,
- .sendfile = linvfs_sendfile,
- .ioctl = linvfs_ioctl,
- .mmap = linvfs_file_mmap,
- .open = linvfs_open,
- .release = linvfs_release,
- .fsync = linvfs_fsync,
-};
-
-struct file_operations linvfs_invis_file_operations = {
- .llseek = generic_file_llseek,
- .read = do_sync_read,
- .write = do_sync_write,
- .readv = linvfs_readv_invis,
- .writev = linvfs_writev_invis,
- .aio_read = linvfs_read_invis,
- .aio_write = linvfs_write_invis,
- .sendfile = linvfs_sendfile,
- .ioctl = linvfs_ioctl_invis,
- .mmap = linvfs_file_mmap,
- .open = linvfs_open,
- .release = linvfs_release,
- .fsync = linvfs_fsync,
-};
-
-
-struct file_operations linvfs_dir_operations = {
- .read = generic_read_dir,
- .readdir = linvfs_readdir,
- .ioctl = linvfs_ioctl,
- .fsync = linvfs_fsync,
-};
-
-static struct vm_operations_struct linvfs_file_vm_ops = {
- .nopage = filemap_nopage,
-#ifdef HAVE_VMOP_MPROTECT
- .mprotect = linvfs_mprotect,
-#endif
-};
+++ /dev/null
-/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-
-/*
- * Stub for no-op vnode operations that return error status.
- */
-int
-fs_noerr()
-{
- return 0;
-}
-
-/*
- * Operation unsupported under this file system.
- */
-int
-fs_nosys()
-{
- return ENOSYS;
-}
-
-/*
- * Stub for inactive, strategy, and read/write lock/unlock. Does nothing.
- */
-/* ARGSUSED */
-void
-fs_noval()
-{
-}
-
-/*
- * vnode pcache layer for vnode_tosspages.
- * 'last' parameter unused but left in for IRIX compatibility
- */
-void
-fs_tosspages(
- bhv_desc_t *bdp,
- xfs_off_t first,
- xfs_off_t last,
- int fiopt)
-{
- vnode_t *vp = BHV_TO_VNODE(bdp);
- struct inode *ip = LINVFS_GET_IP(vp);
-
- if (VN_CACHED(vp))
- truncate_inode_pages(ip->i_mapping, first);
-}
-
-
-/*
- * vnode pcache layer for vnode_flushinval_pages.
- * 'last' parameter unused but left in for IRIX compatibility
- */
-void
-fs_flushinval_pages(
- bhv_desc_t *bdp,
- xfs_off_t first,
- xfs_off_t last,
- int fiopt)
-{
- vnode_t *vp = BHV_TO_VNODE(bdp);
- struct inode *ip = LINVFS_GET_IP(vp);
-
- if (VN_CACHED(vp)) {
- filemap_fdatawrite(ip->i_mapping);
- filemap_fdatawait(ip->i_mapping);
-
- truncate_inode_pages(ip->i_mapping, first);
- }
-}
-
-/*
- * vnode pcache layer for vnode_flush_pages.
- * 'last' parameter unused but left in for IRIX compatibility
- */
-int
-fs_flush_pages(
- bhv_desc_t *bdp,
- xfs_off_t first,
- xfs_off_t last,
- uint64_t flags,
- int fiopt)
-{
- vnode_t *vp = BHV_TO_VNODE(bdp);
- struct inode *ip = LINVFS_GET_IP(vp);
-
- if (VN_CACHED(vp)) {
- filemap_fdatawrite(ip->i_mapping);
- filemap_fdatawait(ip->i_mapping);
- }
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (c) 2000, 2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUBR_H__
-#define __XFS_SUBR_H__
-
-/*
- * Utilities shared among file system implementations.
- */
-
-struct cred;
-
-extern int fs_noerr(void);
-extern int fs_nosys(void);
-extern int fs_nodev(void);
-extern void fs_noval(void);
-extern void fs_tosspages(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
-extern void fs_flushinval_pages(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
-extern int fs_flush_pages(bhv_desc_t *, xfs_off_t, xfs_off_t, uint64_t, int);
-
-#endif /* __XFS_FS_SUBR_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-/*
- * This file contains globals needed by XFS that were normally defined
- * somewhere else in IRIX.
- */
-
-#include "xfs.h"
-#include "xfs_cred.h"
-#include "xfs_sysctl.h"
-
-/*
- * System memory size - used to scale certain data structures in XFS.
- */
-unsigned long xfs_physmem;
-
-/*
- * Tunable XFS parameters. xfs_params is required even when CONFIG_SYSCTL=n,
- * other XFS code uses these values.
- */
-
-xfs_param_t xfs_params = {
- /* MIN DFLT MAX */
- .restrict_chown = { 0, 1, 1 },
- .sgid_inherit = { 0, 0, 1 },
- .symlink_mode = { 0, 0, 1 },
- .panic_mask = { 0, 0, 127 },
- .error_level = { 0, 3, 11 },
- .sync_interval = { USER_HZ, 30*USER_HZ, 7200*USER_HZ },
- .stats_clear = { 0, 0, 1 },
- .inherit_sync = { 0, 1, 1 },
- .inherit_nodump = { 0, 1, 1 },
- .inherit_noatim = { 0, 1, 1 },
- .flush_interval = { USER_HZ/2, USER_HZ, 30*USER_HZ },
- .age_buffer = { 1*USER_HZ, 15*USER_HZ, 7200*USER_HZ },
-};
-
-/*
- * Global system credential structure.
- */
-cred_t sys_cred_val, *sys_cred = &sys_cred_val;
-
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_GLOBALS_H__
-#define __XFS_GLOBALS_H__
-
-/*
- * This file declares globals needed by XFS that were normally defined
- * somewhere else in IRIX.
- */
-
-extern uint64_t xfs_panic_mask; /* set to cause more panics */
-extern unsigned long xfs_physmem;
-extern struct cred *sys_cred;
-
-#endif /* __XFS_GLOBALS_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-
-#include "xfs_fs.h"
-#include "xfs_inum.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_dir.h"
-#include "xfs_dir2.h"
-#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
-#include "xfs_mount.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir_sf.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
-#include "xfs_bmap.h"
-#include "xfs_bit.h"
-#include "xfs_rtalloc.h"
-#include "xfs_error.h"
-#include "xfs_itable.h"
-#include "xfs_rw.h"
-#include "xfs_acl.h"
-#include "xfs_cap.h"
-#include "xfs_mac.h"
-#include "xfs_attr.h"
-#include "xfs_buf_item.h"
-#include "xfs_utils.h"
-#include "xfs_dfrag.h"
-#include "xfs_fsops.h"
-
-#include <linux/dcache.h>
-#include <linux/mount.h>
-#include <linux/namei.h>
-#include <linux/pagemap.h>
-
-/*
- * ioctl commands that are used by Linux filesystems
- */
-#define XFS_IOC_GETXFLAGS _IOR('f', 1, long)
-#define XFS_IOC_SETXFLAGS _IOW('f', 2, long)
-#define XFS_IOC_GETVERSION _IOR('v', 1, long)
-
-
-/*
- * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to
- * a file or fs handle.
- *
- * XFS_IOC_PATH_TO_FSHANDLE
- * returns fs handle for a mount point or path within that mount point
- * XFS_IOC_FD_TO_HANDLE
- * returns full handle for a FD opened in user space
- * XFS_IOC_PATH_TO_HANDLE
- * returns full handle for a path
- */
-STATIC int
-xfs_find_handle(
- unsigned int cmd,
- unsigned long arg)
-{
- int hsize;
- xfs_handle_t handle;
- xfs_fsop_handlereq_t hreq;
- struct inode *inode;
- struct vnode *vp;
-
- if (copy_from_user(&hreq, (xfs_fsop_handlereq_t *)arg, sizeof(hreq)))
- return -XFS_ERROR(EFAULT);
-
- memset((char *)&handle, 0, sizeof(handle));
-
- switch (cmd) {
- case XFS_IOC_PATH_TO_FSHANDLE:
- case XFS_IOC_PATH_TO_HANDLE: {
- struct nameidata nd;
- int error;
-
- error = user_path_walk_link(hreq.path, &nd);
- if (error)
- return error;
-
- ASSERT(nd.dentry);
- ASSERT(nd.dentry->d_inode);
- inode = igrab(nd.dentry->d_inode);
- path_release(&nd);
- break;
- }
-
- case XFS_IOC_FD_TO_HANDLE: {
- struct file *file;
-
- file = fget(hreq.fd);
- if (!file)
- return -EBADF;
-
- ASSERT(file->f_dentry);
- ASSERT(file->f_dentry->d_inode);
- inode = igrab(file->f_dentry->d_inode);
- fput(file);
- break;
- }
-
- default:
- ASSERT(0);
- return -XFS_ERROR(EINVAL);
- }
-
- if (inode->i_sb->s_magic != XFS_SB_MAGIC) {
- /* we're not in XFS anymore, Toto */
- iput(inode);
- return -XFS_ERROR(EINVAL);
- }
-
- /* we need the vnode */
- vp = LINVFS_GET_VP(inode);
- if (vp->v_type != VREG && vp->v_type != VDIR && vp->v_type != VLNK) {
- iput(inode);
- return -XFS_ERROR(EBADF);
- }
-
- /* now we can grab the fsid */
- memcpy(&handle.ha_fsid, vp->v_vfsp->vfs_altfsid, sizeof(xfs_fsid_t));
- hsize = sizeof(xfs_fsid_t);
-
- if (cmd != XFS_IOC_PATH_TO_FSHANDLE) {
- xfs_inode_t *ip;
- bhv_desc_t *bhv;
- int lock_mode;
-
- /* need to get access to the xfs_inode to read the generation */
- bhv = vn_bhv_lookup_unlocked(VN_BHV_HEAD(vp), &xfs_vnodeops);
- ASSERT(bhv);
- ip = XFS_BHVTOI(bhv);
- ASSERT(ip);
- lock_mode = xfs_ilock_map_shared(ip);
-
- /* fill in fid section of handle from inode */
- handle.ha_fid.xfs_fid_len = sizeof(xfs_fid_t) -
- sizeof(handle.ha_fid.xfs_fid_len);
- handle.ha_fid.xfs_fid_pad = 0;
- handle.ha_fid.xfs_fid_gen = ip->i_d.di_gen;
- handle.ha_fid.xfs_fid_ino = ip->i_ino;
-
- xfs_iunlock_map_shared(ip, lock_mode);
-
- hsize = XFS_HSIZE(handle);
- }
-
- /* now copy our handle into the user buffer & write out the size */
- if (copy_to_user((xfs_handle_t *)hreq.ohandle, &handle, hsize) ||
- copy_to_user(hreq.ohandlen, &hsize, sizeof(__s32))) {
- iput(inode);
- return -XFS_ERROR(EFAULT);
- }
-
- iput(inode);
- return 0;
-}
-
-
-/*
- * Convert userspace handle data into vnode (and inode).
- * We [ab]use the fact that all the fsop_handlereq ioctl calls
- * have a data structure argument whose first component is always
- * a xfs_fsop_handlereq_t, so we can cast to and from this type.
- * This allows us to optimise the copy_from_user calls and gives
- * a handy, shared routine.
- *
- * If no error, caller must always VN_RELE the returned vp.
- */
-STATIC int
-xfs_vget_fsop_handlereq(
- xfs_mount_t *mp,
- struct inode *parinode, /* parent inode pointer */
- int cap, /* capability level for op */
- unsigned long arg, /* userspace data pointer */
- unsigned long size, /* size of expected struct */
- /* output arguments */
- xfs_fsop_handlereq_t *hreq,
- vnode_t **vp,
- struct inode **inode)
-{
- void *hanp;
- size_t hlen;
- xfs_fid_t *xfid;
- xfs_handle_t *handlep;
- xfs_handle_t handle;
- xfs_inode_t *ip;
- struct inode *inodep;
- vnode_t *vpp;
- xfs_ino_t ino;
- __u32 igen;
- int error;
-
- if (!capable(cap))
- return XFS_ERROR(EPERM);
-
- /*
- * Only allow handle opens under a directory.
- */
- if (!S_ISDIR(parinode->i_mode))
- return XFS_ERROR(ENOTDIR);
-
- /*
- * Copy the handle down from the user and validate
- * that it looks to be in the correct format.
- */
- if (copy_from_user(hreq, (struct xfs_fsop_handlereq *)arg, size))
- return XFS_ERROR(EFAULT);
-
- hanp = hreq->ihandle;
- hlen = hreq->ihandlen;
- handlep = &handle;
-
- if (hlen < sizeof(handlep->ha_fsid) || hlen > sizeof(*handlep))
- return XFS_ERROR(EINVAL);
- if (copy_from_user(handlep, hanp, hlen))
- return XFS_ERROR(EFAULT);
- if (hlen < sizeof(*handlep))
- memset(((char *)handlep) + hlen, 0, sizeof(*handlep) - hlen);
- if (hlen > sizeof(handlep->ha_fsid)) {
- if (handlep->ha_fid.xfs_fid_len !=
- (hlen - sizeof(handlep->ha_fsid)
- - sizeof(handlep->ha_fid.xfs_fid_len))
- || handlep->ha_fid.xfs_fid_pad)
- return XFS_ERROR(EINVAL);
- }
-
- /*
- * Crack the handle, obtain the inode # & generation #
- */
- xfid = (struct xfs_fid *)&handlep->ha_fid;
- if (xfid->xfs_fid_len == sizeof(*xfid) - sizeof(xfid->xfs_fid_len)) {
- ino = xfid->xfs_fid_ino;
- igen = xfid->xfs_fid_gen;
- } else {
- return XFS_ERROR(EINVAL);
- }
-
- /*
- * Get the XFS inode, building a vnode to go with it.
- */
- error = xfs_iget(mp, NULL, ino, XFS_ILOCK_SHARED, &ip, 0);
- if (error)
- return error;
- if (ip == NULL)
- return XFS_ERROR(EIO);
- if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
- xfs_iput_new(ip, XFS_ILOCK_SHARED);
- return XFS_ERROR(ENOENT);
- }
-
- vpp = XFS_ITOV(ip);
- inodep = LINVFS_GET_IP(vpp);
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
-
- *vp = vpp;
- *inode = inodep;
- return 0;
-}
-
-STATIC int
-xfs_open_by_handle(
- xfs_mount_t *mp,
- unsigned long arg,
- struct file *parfilp,
- struct inode *parinode)
-{
- int error;
- int new_fd;
- int permflag;
- struct file *filp;
- struct inode *inode;
- struct dentry *dentry;
- vnode_t *vp;
- xfs_fsop_handlereq_t hreq;
-
- error = xfs_vget_fsop_handlereq(mp, parinode, CAP_SYS_ADMIN, arg,
- sizeof(xfs_fsop_handlereq_t),
- &hreq, &vp, &inode);
- if (error)
- return -error;
-
- /* Restrict xfs_open_by_handle to directories & regular files. */
- if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) {
- iput(inode);
- return -XFS_ERROR(EINVAL);
- }
-
-#if BITS_PER_LONG != 32
- hreq.oflags |= O_LARGEFILE;
-#endif
- /* Put open permission in namei format. */
- permflag = hreq.oflags;
- if ((permflag+1) & O_ACCMODE)
- permflag++;
- if (permflag & O_TRUNC)
- permflag |= 2;
-
- if ((!(permflag & O_APPEND) || (permflag & O_TRUNC)) &&
- (permflag & FMODE_WRITE) && IS_APPEND(inode)) {
- iput(inode);
- return -XFS_ERROR(EPERM);
- }
-
- if ((permflag & FMODE_WRITE) && IS_IMMUTABLE(inode)) {
- iput(inode);
- return -XFS_ERROR(EACCES);
- }
-
- /* Can't write directories. */
- if ( S_ISDIR(inode->i_mode) && (permflag & FMODE_WRITE)) {
- iput(inode);
- return -XFS_ERROR(EISDIR);
- }
-
- if ((new_fd = get_unused_fd()) < 0) {
- iput(inode);
- return new_fd;
- }
-
- dentry = d_alloc_anon(inode);
- if (dentry == NULL) {
- iput(inode);
- put_unused_fd(new_fd);
- return -XFS_ERROR(ENOMEM);
- }
-
- /* Ensure umount returns EBUSY on umounts while this file is open. */
- mntget(parfilp->f_vfsmnt);
-
- /* Create file pointer. */
- filp = dentry_open(dentry, parfilp->f_vfsmnt, hreq.oflags);
- if (IS_ERR(filp)) {
- put_unused_fd(new_fd);
- return -XFS_ERROR(-PTR_ERR(filp));
- }
- if (inode->i_mode & S_IFREG)
- filp->f_op = &linvfs_invis_file_operations;
-
- fd_install(new_fd, filp);
- return new_fd;
-}
-
-STATIC int
-xfs_readlink_by_handle(
- xfs_mount_t *mp,
- unsigned long arg,
- struct file *parfilp,
- struct inode *parinode)
-{
- int error;
- struct iovec aiov;
- struct uio auio;
- struct inode *inode;
- xfs_fsop_handlereq_t hreq;
- vnode_t *vp;
- __u32 olen;
-
- error = xfs_vget_fsop_handlereq(mp, parinode, CAP_SYS_ADMIN, arg,
- sizeof(xfs_fsop_handlereq_t),
- &hreq, &vp, &inode);
- if (error)
- return -error;
-
- /* Restrict this handle operation to symlinks only. */
- if (vp->v_type != VLNK) {
- VN_RELE(vp);
- return -XFS_ERROR(EINVAL);
- }
-
- if (copy_from_user(&olen, hreq.ohandlen, sizeof(__u32))) {
- VN_RELE(vp);
- return -XFS_ERROR(EFAULT);
- }
- aiov.iov_len = olen;
- aiov.iov_base = hreq.ohandle;
-
- auio.uio_iov = &aiov;
- auio.uio_iovcnt = 1;
- auio.uio_offset = 0;
- auio.uio_segflg = UIO_USERSPACE;
- auio.uio_resid = olen;
-
- VOP_READLINK(vp, &auio, IO_INVIS, NULL, error);
-
- VN_RELE(vp);
- return (olen - auio.uio_resid);
-}
-
-STATIC int
-xfs_fssetdm_by_handle(
- xfs_mount_t *mp,
- unsigned long arg,
- struct file *parfilp,
- struct inode *parinode)
-{
- int error;
- struct fsdmidata fsd;
- xfs_fsop_setdm_handlereq_t dmhreq;
- struct inode *inode;
- bhv_desc_t *bdp;
- vnode_t *vp;
-
- error = xfs_vget_fsop_handlereq(mp, parinode, CAP_MKNOD, arg,
- sizeof(xfs_fsop_setdm_handlereq_t),
- (xfs_fsop_handlereq_t *)&dmhreq,
- &vp, &inode);
- if (error)
- return -error;
-
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
- VN_RELE(vp);
- return -XFS_ERROR(EPERM);
- }
-
- if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) {
- VN_RELE(vp);
- return -XFS_ERROR(EFAULT);
- }
-
- bdp = bhv_base_unlocked(VN_BHV_HEAD(vp));
- error = xfs_set_dmattrs(bdp, fsd.fsd_dmevmask, fsd.fsd_dmstate, NULL);
-
- VN_RELE(vp);
- if (error)
- return -error;
- return 0;
-}
-
-STATIC int
-xfs_attrlist_by_handle(
- xfs_mount_t *mp,
- unsigned long arg,
- struct file *parfilp,
- struct inode *parinode)
-{
- int error;
- attrlist_cursor_kern_t *cursor;
- xfs_fsop_attrlist_handlereq_t al_hreq;
- struct inode *inode;
- vnode_t *vp;
-
- error = xfs_vget_fsop_handlereq(mp, parinode, CAP_SYS_ADMIN, arg,
- sizeof(xfs_fsop_attrlist_handlereq_t),
- (xfs_fsop_handlereq_t *)&al_hreq,
- &vp, &inode);
- if (error)
- return -error;
-
- cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
- VOP_ATTR_LIST(vp, al_hreq.buffer, al_hreq.buflen, al_hreq.flags,
- cursor, NULL, error);
- VN_RELE(vp);
- if (error)
- return -error;
- return 0;
-}
-
-STATIC int
-xfs_attrmulti_by_handle(
- xfs_mount_t *mp,
- unsigned long arg,
- struct file *parfilp,
- struct inode *parinode)
-{
- int error;
- xfs_attr_multiop_t *ops;
- xfs_fsop_attrmulti_handlereq_t am_hreq;
- struct inode *inode;
- vnode_t *vp;
- int i, size;
-
- error = xfs_vget_fsop_handlereq(mp, parinode, CAP_SYS_ADMIN, arg,
- sizeof(xfs_fsop_attrmulti_handlereq_t),
- (xfs_fsop_handlereq_t *)&am_hreq,
- &vp, &inode);
- if (error)
- return -error;
-
- size = am_hreq.opcount * sizeof(attr_multiop_t);
- ops = (xfs_attr_multiop_t *)kmalloc(size, GFP_KERNEL);
- if (!ops) {
- VN_RELE(vp);
- return -XFS_ERROR(ENOMEM);
- }
-
- if (copy_from_user(ops, am_hreq.ops, size)) {
- kfree(ops);
- VN_RELE(vp);
- return -XFS_ERROR(EFAULT);
- }
-
- for (i = 0; i < am_hreq.opcount; i++) {
- switch(ops[i].am_opcode) {
- case ATTR_OP_GET:
- VOP_ATTR_GET(vp,ops[i].am_attrname, ops[i].am_attrvalue,
- &ops[i].am_length, ops[i].am_flags,
- NULL, ops[i].am_error);
- break;
- case ATTR_OP_SET:
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
- ops[i].am_error = EPERM;
- break;
- }
- VOP_ATTR_SET(vp,ops[i].am_attrname, ops[i].am_attrvalue,
- ops[i].am_length, ops[i].am_flags,
- NULL, ops[i].am_error);
- break;
- case ATTR_OP_REMOVE:
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
- ops[i].am_error = EPERM;
- break;
- }
- VOP_ATTR_REMOVE(vp, ops[i].am_attrname, ops[i].am_flags,
- NULL, ops[i].am_error);
- break;
- default:
- ops[i].am_error = EINVAL;
- }
- }
-
- if (copy_to_user(am_hreq.ops, ops, size))
- error = -XFS_ERROR(EFAULT);
-
- kfree(ops);
- VN_RELE(vp);
- return error;
-}
-
-/* prototypes for a few of the stack-hungry cases that have
- * their own functions. Functions are defined after their use
- * so gcc doesn't get fancy and inline them with -03 */
-
-STATIC int
-xfs_ioc_space(
- bhv_desc_t *bdp,
- vnode_t *vp,
- struct file *filp,
- int flags,
- unsigned int cmd,
- unsigned long arg);
-
-STATIC int
-xfs_ioc_bulkstat(
- xfs_mount_t *mp,
- unsigned int cmd,
- unsigned long arg);
-
-STATIC int
-xfs_ioc_fsgeometry_v1(
- xfs_mount_t *mp,
- unsigned long arg);
-
-STATIC int
-xfs_ioc_fsgeometry(
- xfs_mount_t *mp,
- unsigned long arg);
-
-STATIC int
-xfs_ioc_xattr(
- vnode_t *vp,
- xfs_inode_t *ip,
- struct file *filp,
- unsigned int cmd,
- unsigned long arg);
-
-STATIC int
-xfs_ioc_getbmap(
- bhv_desc_t *bdp,
- struct file *filp,
- int flags,
- unsigned int cmd,
- unsigned long arg);
-
-STATIC int
-xfs_ioc_getbmapx(
- bhv_desc_t *bdp,
- unsigned long arg);
-
-int
-xfs_ioctl(
- bhv_desc_t *bdp,
- struct inode *inode,
- struct file *filp,
- int ioflags,
- unsigned int cmd,
- unsigned long arg)
-{
- int error;
- vnode_t *vp;
- xfs_inode_t *ip;
- xfs_mount_t *mp;
-
- vp = LINVFS_GET_VP(inode);
-
- vn_trace_entry(vp, "xfs_ioctl", (inst_t *)__return_address);
-
- ip = XFS_BHVTOI(bdp);
- mp = ip->i_mount;
-
- switch (cmd) {
-
- case XFS_IOC_ALLOCSP:
- case XFS_IOC_FREESP:
- case XFS_IOC_RESVSP:
- case XFS_IOC_UNRESVSP:
- case XFS_IOC_ALLOCSP64:
- case XFS_IOC_FREESP64:
- case XFS_IOC_RESVSP64:
- case XFS_IOC_UNRESVSP64:
- /*
- * Only allow the sys admin to reserve space unless
- * unwritten extents are enabled.
- */
- if (!XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) &&
- !capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- return xfs_ioc_space(bdp, vp, filp, ioflags, cmd, arg);
-
- case XFS_IOC_DIOINFO: {
- struct dioattr da;
- xfs_buftarg_t *target =
- (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
- mp->m_rtdev_targp : mp->m_ddev_targp;
-
- da.d_mem = da.d_miniosz = 1 << target->pbr_sshift;
- /* The size dio will do in one go */
- da.d_maxiosz = 64 * PAGE_CACHE_SIZE;
-
- if (copy_to_user((struct dioattr *)arg, &da, sizeof(da)))
- return -XFS_ERROR(EFAULT);
- return 0;
- }
-
- case XFS_IOC_FSBULKSTAT_SINGLE:
- case XFS_IOC_FSBULKSTAT:
- case XFS_IOC_FSINUMBERS:
- return xfs_ioc_bulkstat(mp, cmd, arg);
-
- case XFS_IOC_FSGEOMETRY_V1:
- return xfs_ioc_fsgeometry_v1(mp, arg);
-
- case XFS_IOC_FSGEOMETRY:
- return xfs_ioc_fsgeometry(mp, arg);
-
- case XFS_IOC_GETVERSION:
- case XFS_IOC_GETXFLAGS:
- case XFS_IOC_SETXFLAGS:
- case XFS_IOC_FSGETXATTR:
- case XFS_IOC_FSSETXATTR:
- case XFS_IOC_FSGETXATTRA:
- return xfs_ioc_xattr(vp, ip, filp, cmd, arg);
-
- case XFS_IOC_FSSETDM: {
- struct fsdmidata dmi;
-
- if (copy_from_user(&dmi, (struct fsdmidata *)arg, sizeof(dmi)))
- return -XFS_ERROR(EFAULT);
-
- error = xfs_set_dmattrs(bdp, dmi.fsd_dmevmask, dmi.fsd_dmstate,
- NULL);
- return -error;
- }
-
- case XFS_IOC_GETBMAP:
- case XFS_IOC_GETBMAPA:
- return xfs_ioc_getbmap(bdp, filp, ioflags, cmd, arg);
-
- case XFS_IOC_GETBMAPX:
- return xfs_ioc_getbmapx(bdp, arg);
-
- case XFS_IOC_FD_TO_HANDLE:
- case XFS_IOC_PATH_TO_HANDLE:
- case XFS_IOC_PATH_TO_FSHANDLE:
- return xfs_find_handle(cmd, arg);
-
- case XFS_IOC_OPEN_BY_HANDLE:
- return xfs_open_by_handle(mp, arg, filp, inode);
-
- case XFS_IOC_FSSETDM_BY_HANDLE:
- return xfs_fssetdm_by_handle(mp, arg, filp, inode);
-
- case XFS_IOC_READLINK_BY_HANDLE:
- return xfs_readlink_by_handle(mp, arg, filp, inode);
-
- case XFS_IOC_ATTRLIST_BY_HANDLE:
- return xfs_attrlist_by_handle(mp, arg, filp, inode);
-
- case XFS_IOC_ATTRMULTI_BY_HANDLE:
- return xfs_attrmulti_by_handle(mp, arg, filp, inode);
-
- case XFS_IOC_SWAPEXT: {
- error = xfs_swapext((struct xfs_swapext *)arg);
- return -error;
- }
-
- case XFS_IOC_FSCOUNTS: {
- xfs_fsop_counts_t out;
-
- error = xfs_fs_counts(mp, &out);
- if (error)
- return -error;
-
- if (copy_to_user((char *)arg, &out, sizeof(out)))
- return -XFS_ERROR(EFAULT);
- return 0;
- }
-
- case XFS_IOC_SET_RESBLKS: {
- xfs_fsop_resblks_t inout;
- __uint64_t in;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (copy_from_user(&inout, (char *)arg, sizeof(inout)))
- return -XFS_ERROR(EFAULT);
-
- /* input parameter is passed in resblks field of structure */
- in = inout.resblks;
- error = xfs_reserve_blocks(mp, &in, &inout);
- if (error)
- return -error;
-
- if (copy_to_user((char *)arg, &inout, sizeof(inout)))
- return -XFS_ERROR(EFAULT);
- return 0;
- }
-
- case XFS_IOC_GET_RESBLKS: {
- xfs_fsop_resblks_t out;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- error = xfs_reserve_blocks(mp, NULL, &out);
- if (error)
- return -error;
-
- if (copy_to_user((char *)arg, &out, sizeof(out)))
- return -XFS_ERROR(EFAULT);
-
- return 0;
- }
-
- case XFS_IOC_FSGROWFSDATA: {
- xfs_growfs_data_t in;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (copy_from_user(&in, (char *)arg, sizeof(in)))
- return -XFS_ERROR(EFAULT);
-
- error = xfs_growfs_data(mp, &in);
- return -error;
- }
-
- case XFS_IOC_FSGROWFSLOG: {
- xfs_growfs_log_t in;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (copy_from_user(&in, (char *)arg, sizeof(in)))
- return -XFS_ERROR(EFAULT);
-
- error = xfs_growfs_log(mp, &in);
- return -error;
- }
-
- case XFS_IOC_FSGROWFSRT: {
- xfs_growfs_rt_t in;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (copy_from_user(&in, (char *)arg, sizeof(in)))
- return -XFS_ERROR(EFAULT);
-
- error = xfs_growfs_rt(mp, &in);
- return -error;
- }
-
- case XFS_IOC_FREEZE:
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- freeze_bdev(inode->i_sb->s_bdev);
- return 0;
-
- case XFS_IOC_THAW:
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
- return 0;
-
- case XFS_IOC_GOINGDOWN: {
- __uint32_t in;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (get_user(in, (__uint32_t *)arg))
- return -XFS_ERROR(EFAULT);
-
- error = xfs_fs_goingdown(mp, in);
- return -error;
- }
-
- case XFS_IOC_ERROR_INJECTION: {
- xfs_error_injection_t in;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (copy_from_user(&in, (char *)arg, sizeof(in)))
- return -XFS_ERROR(EFAULT);
-
- error = xfs_errortag_add(in.errtag, mp);
- return -error;
- }
-
- case XFS_IOC_ERROR_CLEARALL:
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- error = xfs_errortag_clearall(mp);
- return -error;
-
- default:
- return -ENOTTY;
- }
-}
-
-STATIC int
-xfs_ioc_space(
- bhv_desc_t *bdp,
- vnode_t *vp,
- struct file *filp,
- int ioflags,
- unsigned int cmd,
- unsigned long arg)
-{
- xfs_flock64_t bf;
- int attr_flags = 0;
- int error;
-
- if (vp->v_inode.i_flags & (S_IMMUTABLE|S_APPEND))
- return -XFS_ERROR(EPERM);
-
- if (!(filp->f_flags & FMODE_WRITE))
- return -XFS_ERROR(EBADF);
-
- if (vp->v_type != VREG)
- return -XFS_ERROR(EINVAL);
-
- if (copy_from_user(&bf, (xfs_flock64_t *)arg, sizeof(bf)))
- return -XFS_ERROR(EFAULT);
-
- if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
- attr_flags |= ATTR_NONBLOCK;
- if (ioflags & IO_INVIS)
- attr_flags |= ATTR_DMI;
-
- error = xfs_change_file_space(bdp, cmd, &bf, filp->f_pos,
- NULL, attr_flags);
- return -error;
-}
-
-STATIC int
-xfs_ioc_bulkstat(
- xfs_mount_t *mp,
- unsigned int cmd,
- unsigned long arg)
-{
- xfs_fsop_bulkreq_t bulkreq;
- int count; /* # of records returned */
- xfs_ino_t inlast; /* last inode number */
- int done;
- int error;
-
- /* done = 1 if there are more stats to get and if bulkstat */
- /* should be called again (unused here, but used in dmapi) */
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (XFS_FORCED_SHUTDOWN(mp))
- return -XFS_ERROR(EIO);
-
- if (copy_from_user(&bulkreq, (xfs_fsop_bulkreq_t *)arg,
- sizeof(xfs_fsop_bulkreq_t)))
- return -XFS_ERROR(EFAULT);
-
- if (copy_from_user(&inlast, (__s64 *)bulkreq.lastip,
- sizeof(__s64)))
- return -XFS_ERROR(EFAULT);
-
- if ((count = bulkreq.icount) <= 0)
- return -XFS_ERROR(EINVAL);
-
- if (cmd == XFS_IOC_FSINUMBERS)
- error = xfs_inumbers(mp, NULL, &inlast, &count,
- bulkreq.ubuffer);
- else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE)
- error = xfs_bulkstat_single(mp, &inlast,
- bulkreq.ubuffer, &done);
- else { /* XFS_IOC_FSBULKSTAT */
- if (count == 1 && inlast != 0) {
- inlast++;
- error = xfs_bulkstat_single(mp, &inlast,
- bulkreq.ubuffer, &done);
- } else {
- error = xfs_bulkstat(mp, NULL, &inlast, &count,
- (bulkstat_one_pf)xfs_bulkstat_one, NULL,
- sizeof(xfs_bstat_t), bulkreq.ubuffer,
- BULKSTAT_FG_QUICK, &done);
- }
- }
-
- if (error)
- return -error;
-
- if (bulkreq.ocount != NULL) {
- if (copy_to_user((xfs_ino_t *)bulkreq.lastip, &inlast,
- sizeof(xfs_ino_t)))
- return -XFS_ERROR(EFAULT);
-
- if (copy_to_user((__s32 *)bulkreq.ocount, &count,
- sizeof(count)))
- return -XFS_ERROR(EFAULT);
- }
-
- return 0;
-}
-
-STATIC int
-xfs_ioc_fsgeometry_v1(
- xfs_mount_t *mp,
- unsigned long arg)
-{
- xfs_fsop_geom_v1_t fsgeo;
- int error;
-
- error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)&fsgeo, 3);
- if (error)
- return -error;
-
- if (copy_to_user((xfs_fsop_geom_t *)arg, &fsgeo, sizeof(fsgeo)))
- return -XFS_ERROR(EFAULT);
- return 0;
-}
-
-STATIC int
-xfs_ioc_fsgeometry(
- xfs_mount_t *mp,
- unsigned long arg)
-{
- xfs_fsop_geom_t fsgeo;
- int error;
-
- error = xfs_fs_geometry(mp, &fsgeo, 4);
- if (error)
- return -error;
-
- if (copy_to_user((xfs_fsop_geom_t *)arg, &fsgeo, sizeof(fsgeo)))
- return -XFS_ERROR(EFAULT);
- return 0;
-}
-
-/*
- * Linux extended inode flags interface.
- */
-#define LINUX_XFLAG_SYNC 0x00000008 /* Synchronous updates */
-#define LINUX_XFLAG_IMMUTABLE 0x00000010 /* Immutable file */
-#define LINUX_XFLAG_APPEND 0x00000020 /* writes to file may only append */
-#define LINUX_XFLAG_NODUMP 0x00000040 /* do not dump file */
-#define LINUX_XFLAG_NOATIME 0x00000080 /* do not update atime */
-
-STATIC unsigned int
-xfs_merge_ioc_xflags(
- unsigned int flags,
- unsigned int start)
-{
- unsigned int xflags = start;
-
- if (flags & LINUX_XFLAG_IMMUTABLE)
- xflags |= XFS_XFLAG_IMMUTABLE;
- else
- xflags &= ~XFS_XFLAG_IMMUTABLE;
- if (flags & LINUX_XFLAG_APPEND)
- xflags |= XFS_XFLAG_APPEND;
- else
- xflags &= ~XFS_XFLAG_APPEND;
- if (flags & LINUX_XFLAG_SYNC)
- xflags |= XFS_XFLAG_SYNC;
- else
- xflags &= ~XFS_XFLAG_SYNC;
- if (flags & LINUX_XFLAG_NOATIME)
- xflags |= XFS_XFLAG_NOATIME;
- else
- xflags &= ~XFS_XFLAG_NOATIME;
- if (flags & LINUX_XFLAG_NODUMP)
- xflags |= XFS_XFLAG_NODUMP;
- else
- xflags &= ~XFS_XFLAG_NODUMP;
-
- return xflags;
-}
-
-STATIC int
-xfs_ioc_xattr(
- vnode_t *vp,
- xfs_inode_t *ip,
- struct file *filp,
- unsigned int cmd,
- unsigned long arg)
-{
- struct fsxattr fa;
- vattr_t va;
- int error;
- int attr_flags;
- unsigned int flags;
-
- switch (cmd) {
- case XFS_IOC_FSGETXATTR: {
- va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS;
- VOP_GETATTR(vp, &va, 0, NULL, error);
- if (error)
- return -error;
-
- fa.fsx_xflags = va.va_xflags;
- fa.fsx_extsize = va.va_extsize;
- fa.fsx_nextents = va.va_nextents;
-
- if (copy_to_user((struct fsxattr *)arg, &fa, sizeof(fa)))
- return -XFS_ERROR(EFAULT);
- return 0;
- }
-
- case XFS_IOC_FSSETXATTR: {
- if (copy_from_user(&fa, (struct fsxattr *)arg, sizeof(fa)))
- return -XFS_ERROR(EFAULT);
-
- attr_flags = 0;
- if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
- attr_flags |= ATTR_NONBLOCK;
-
- va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE;
- va.va_xflags = fa.fsx_xflags;
- va.va_extsize = fa.fsx_extsize;
-
- VOP_SETATTR(vp, &va, attr_flags, NULL, error);
- if (!error)
- vn_revalidate(vp); /* update Linux inode flags */
- return -error;
- }
-
- case XFS_IOC_FSGETXATTRA: {
- va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_ANEXTENTS;
- VOP_GETATTR(vp, &va, 0, NULL, error);
- if (error)
- return -error;
-
- fa.fsx_xflags = va.va_xflags;
- fa.fsx_extsize = va.va_extsize;
- fa.fsx_nextents = va.va_anextents;
-
- if (copy_to_user((struct fsxattr *)arg, &fa, sizeof(fa)))
- return -XFS_ERROR(EFAULT);
- return 0;
- }
-
- case XFS_IOC_GETXFLAGS: {
- flags = 0;
- if (ip->i_d.di_flags & XFS_XFLAG_IMMUTABLE)
- flags |= LINUX_XFLAG_IMMUTABLE;
- if (ip->i_d.di_flags & XFS_XFLAG_APPEND)
- flags |= LINUX_XFLAG_APPEND;
- if (ip->i_d.di_flags & XFS_XFLAG_SYNC)
- flags |= LINUX_XFLAG_SYNC;
- if (ip->i_d.di_flags & XFS_XFLAG_NOATIME)
- flags |= LINUX_XFLAG_NOATIME;
- if (ip->i_d.di_flags & XFS_XFLAG_NODUMP)
- flags |= LINUX_XFLAG_NODUMP;
- if (copy_to_user((unsigned int *)arg, &flags, sizeof(flags)))
- return -XFS_ERROR(EFAULT);
- return 0;
- }
-
- case XFS_IOC_SETXFLAGS: {
- if (copy_from_user(&flags, (unsigned int *)arg, sizeof(flags)))
- return -XFS_ERROR(EFAULT);
-
- if (flags & ~(LINUX_XFLAG_IMMUTABLE | LINUX_XFLAG_APPEND | \
- LINUX_XFLAG_NOATIME | LINUX_XFLAG_NODUMP | \
- LINUX_XFLAG_SYNC))
- return -XFS_ERROR(EOPNOTSUPP);
-
- attr_flags = 0;
- if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
- attr_flags |= ATTR_NONBLOCK;
-
- va.va_mask = XFS_AT_XFLAGS;
- va.va_xflags = xfs_merge_ioc_xflags(flags, ip->i_d.di_flags);
-
- VOP_SETATTR(vp, &va, attr_flags, NULL, error);
- if (!error)
- vn_revalidate(vp); /* update Linux inode flags */
- return -error;
- }
-
- case XFS_IOC_GETVERSION: {
- flags = LINVFS_GET_IP(vp)->i_generation;
- if (copy_to_user((unsigned int *)arg, &flags, sizeof(flags)))
- return -XFS_ERROR(EFAULT);
- return 0;
- }
-
- default:
- return -ENOTTY;
- }
-}
-
-STATIC int
-xfs_ioc_getbmap(
- bhv_desc_t *bdp,
- struct file *filp,
- int ioflags,
- unsigned int cmd,
- unsigned long arg)
-{
- struct getbmap bm;
- int iflags;
- int error;
-
- if (copy_from_user(&bm, (struct getbmap *)arg, sizeof(bm)))
- return -XFS_ERROR(EFAULT);
-
- if (bm.bmv_count < 2)
- return -XFS_ERROR(EINVAL);
-
- iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0);
- if (ioflags & IO_INVIS)
- iflags |= BMV_IF_NO_DMAPI_READ;
-
- error = xfs_getbmap(bdp, &bm, (struct getbmap *)arg+1, iflags);
- if (error)
- return -error;
-
- if (copy_to_user((struct getbmap *)arg, &bm, sizeof(bm)))
- return -XFS_ERROR(EFAULT);
- return 0;
-}
-
-STATIC int
-xfs_ioc_getbmapx(
- bhv_desc_t *bdp,
- unsigned long arg)
-{
- struct getbmapx bmx;
- struct getbmap bm;
- int iflags;
- int error;
-
- if (copy_from_user(&bmx, (struct getbmapx *)arg, sizeof(bmx)))
- return -XFS_ERROR(EFAULT);
-
- if (bmx.bmv_count < 2)
- return -XFS_ERROR(EINVAL);
-
- /*
- * Map input getbmapx structure to a getbmap
- * structure for xfs_getbmap.
- */
- GETBMAP_CONVERT(bmx, bm);
-
- iflags = bmx.bmv_iflags;
-
- if (iflags & (~BMV_IF_VALID))
- return -XFS_ERROR(EINVAL);
-
- iflags |= BMV_IF_EXTENDED;
-
- error = xfs_getbmap(bdp, &bm, (struct getbmapx *)arg+1, iflags);
- if (error)
- return -error;
-
- GETBMAP_CONVERT(bm, bmx);
-
- if (copy_to_user((struct getbmapx *)arg, &bmx, sizeof(bmx)))
- return -XFS_ERROR(EFAULT);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_inum.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_dir.h"
-#include "xfs_dir2.h"
-#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
-#include "xfs_quota.h"
-#include "xfs_mount.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir_sf.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
-#include "xfs_bmap.h"
-#include "xfs_bit.h"
-#include "xfs_rtalloc.h"
-#include "xfs_error.h"
-#include "xfs_itable.h"
-#include "xfs_rw.h"
-#include "xfs_acl.h"
-#include "xfs_cap.h"
-#include "xfs_mac.h"
-#include "xfs_attr.h"
-#include "xfs_buf_item.h"
-#include "xfs_utils.h"
-
-#include <linux/xattr.h>
-
-
-/*
- * Pull the link count and size up from the xfs inode to the linux inode
- */
-STATIC void
-validate_fields(
- struct inode *ip)
-{
- vnode_t *vp = LINVFS_GET_VP(ip);
- vattr_t va;
- int error;
-
- va.va_mask = XFS_AT_NLINK|XFS_AT_SIZE|XFS_AT_NBLOCKS;
- VOP_GETATTR(vp, &va, ATTR_LAZY, NULL, error);
- if (likely(!error)) {
- ip->i_nlink = va.va_nlink;
- ip->i_blocks = va.va_nblocks;
-
- /* we're under i_sem so i_size can't change under us */
- if (i_size_read(ip) != va.va_size)
- i_size_write(ip, va.va_size);
- }
-}
-
-/*
- * Determine whether a process has a valid fs_struct (kernel daemons
- * like knfsd don't have an fs_struct).
- *
- * XXX(hch): nfsd is broken, better fix it instead.
- */
-STATIC inline int
-has_fs_struct(struct task_struct *task)
-{
- return (task->fs != init_task.fs);
-}
-
-STATIC int
-linvfs_mknod(
- struct inode *dir,
- struct dentry *dentry,
- int mode,
- dev_t rdev)
-{
- struct inode *ip;
- vattr_t va;
- vnode_t *vp = NULL, *dvp = LINVFS_GET_VP(dir);
- xfs_acl_t *default_acl = NULL;
- attrexists_t test_default_acl = _ACL_DEFAULT_EXISTS;
- int error;
-
- /*
- * Irix uses Missed'em'V split, but doesn't want to see
- * the upper 5 bits of (14bit) major.
- */
- if (!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff)
- return -EINVAL;
-
- if (test_default_acl && test_default_acl(dvp)) {
- if (!_ACL_ALLOC(default_acl))
- return -ENOMEM;
- if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
- _ACL_FREE(default_acl);
- default_acl = NULL;
- }
- }
-
- if (IS_POSIXACL(dir) && !default_acl && has_fs_struct(current))
- mode &= ~current->fs->umask;
-
- memset(&va, 0, sizeof(va));
- va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
- va.va_type = IFTOVT(mode);
- va.va_mode = mode;
-
- switch (mode & S_IFMT) {
- case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
- va.va_rdev = sysv_encode_dev(rdev);
- va.va_mask |= XFS_AT_RDEV;
- /*FALLTHROUGH*/
- case S_IFREG:
- VOP_CREATE(dvp, dentry, &va, &vp, NULL, error);
- break;
- case S_IFDIR:
- VOP_MKDIR(dvp, dentry, &va, &vp, NULL, error);
- break;
- default:
- error = EINVAL;
- break;
- }
-
- if (default_acl) {
- if (!error) {
- error = _ACL_INHERIT(vp, &va, default_acl);
- if (!error) {
- VMODIFY(vp);
- } else {
- struct dentry teardown = {};
- int err2;
-
- /* Oh, the horror.
- * If we can't add the ACL we must back out.
- * ENOSPC can hit here, among other things.
- */
- teardown.d_inode = ip = LINVFS_GET_IP(vp);
- teardown.d_name = dentry->d_name;
- remove_inode_hash(ip);
- make_bad_inode(ip);
- if (S_ISDIR(mode))
- VOP_RMDIR(dvp, &teardown, NULL, err2);
- else
- VOP_REMOVE(dvp, &teardown, NULL, err2);
- VN_RELE(vp);
- }
- }
- _ACL_FREE(default_acl);
- }
-
- if (!error) {
- ASSERT(vp);
- ip = LINVFS_GET_IP(vp);
-
- if (S_ISCHR(mode) || S_ISBLK(mode))
- ip->i_rdev = rdev;
- else if (S_ISDIR(mode))
- validate_fields(ip);
- d_instantiate(dentry, ip);
- validate_fields(dir);
- }
- return -error;
-}
-
-STATIC int
-linvfs_create(
- struct inode *dir,
- struct dentry *dentry,
- int mode,
- struct nameidata *nd)
-{
- return linvfs_mknod(dir, dentry, mode, 0);
-}
-
-STATIC int
-linvfs_mkdir(
- struct inode *dir,
- struct dentry *dentry,
- int mode)
-{
- return linvfs_mknod(dir, dentry, mode|S_IFDIR, 0);
-}
-
-STATIC struct dentry *
-linvfs_lookup(
- struct inode *dir,
- struct dentry *dentry,
- struct nameidata *nd)
-{
- struct inode *ip = NULL;
- vnode_t *vp, *cvp = NULL;
- int error;
-
- if (dentry->d_name.len >= MAXNAMELEN)
- return ERR_PTR(-ENAMETOOLONG);
-
- vp = LINVFS_GET_VP(dir);
- VOP_LOOKUP(vp, dentry, &cvp, 0, NULL, NULL, error);
- if (!error) {
- ASSERT(cvp);
- ip = LINVFS_GET_IP(cvp);
- if (!ip) {
- VN_RELE(cvp);
- return ERR_PTR(-EACCES);
- }
- }
- if (error && (error != ENOENT))
- return ERR_PTR(-error);
- return d_splice_alias(ip, dentry);
-}
-
-STATIC int
-linvfs_link(
- struct dentry *old_dentry,
- struct inode *dir,
- struct dentry *dentry)
-{
- struct inode *ip; /* inode of guy being linked to */
- vnode_t *tdvp; /* target directory for new name/link */
- vnode_t *vp; /* vp of name being linked */
- int error;
-
- ip = old_dentry->d_inode; /* inode being linked to */
- if (S_ISDIR(ip->i_mode))
- return -EPERM;
-
- tdvp = LINVFS_GET_VP(dir);
- vp = LINVFS_GET_VP(ip);
-
- VOP_LINK(tdvp, vp, dentry, NULL, error);
- if (!error) {
- VMODIFY(tdvp);
- VN_HOLD(vp);
- validate_fields(ip);
- d_instantiate(dentry, ip);
- }
- return -error;
-}
-
-STATIC int
-linvfs_unlink(
- struct inode *dir,
- struct dentry *dentry)
-{
- struct inode *inode;
- vnode_t *dvp; /* directory containing name to remove */
- int error;
-
- inode = dentry->d_inode;
- dvp = LINVFS_GET_VP(dir);
-
- VOP_REMOVE(dvp, dentry, NULL, error);
- if (!error) {
- validate_fields(dir); /* For size only */
- validate_fields(inode);
- }
-
- return -error;
-}
-
-STATIC int
-linvfs_symlink(
- struct inode *dir,
- struct dentry *dentry,
- const char *symname)
-{
- struct inode *ip;
- vattr_t va;
- vnode_t *dvp; /* directory containing name to remove */
- vnode_t *cvp; /* used to lookup symlink to put in dentry */
- int error;
-
- dvp = LINVFS_GET_VP(dir);
- cvp = NULL;
-
- memset(&va, 0, sizeof(va));
- va.va_type = VLNK;
- va.va_mode = irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO;
- va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
-
- error = 0;
- VOP_SYMLINK(dvp, dentry, &va, (char *)symname, &cvp, NULL, error);
- if (!error && cvp) {
- ASSERT(cvp->v_type == VLNK);
- ip = LINVFS_GET_IP(cvp);
- d_instantiate(dentry, ip);
- validate_fields(dir);
- validate_fields(ip); /* size needs update */
- }
- return -error;
-}
-
-STATIC int
-linvfs_rmdir(
- struct inode *dir,
- struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
- vnode_t *dvp = LINVFS_GET_VP(dir);
- int error;
-
- VOP_RMDIR(dvp, dentry, NULL, error);
- if (!error) {
- validate_fields(inode);
- validate_fields(dir);
- }
- return -error;
-}
-
-STATIC int
-linvfs_rename(
- struct inode *odir,
- struct dentry *odentry,
- struct inode *ndir,
- struct dentry *ndentry)
-{
- struct inode *new_inode = ndentry->d_inode;
- vnode_t *fvp; /* from directory */
- vnode_t *tvp; /* target directory */
- int error;
-
- fvp = LINVFS_GET_VP(odir);
- tvp = LINVFS_GET_VP(ndir);
-
- VOP_RENAME(fvp, odentry, tvp, ndentry, NULL, error);
- if (error)
- return -error;
-
- if (new_inode)
- validate_fields(new_inode);
-
- validate_fields(odir);
- if (ndir != odir)
- validate_fields(ndir);
- return 0;
-}
-
-STATIC int
-linvfs_readlink(
- struct dentry *dentry,
- char *buf,
- int size)
-{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
- uio_t uio;
- iovec_t iov;
- int error;
-
- iov.iov_base = buf;
- iov.iov_len = size;
-
- uio.uio_iov = &iov;
- uio.uio_offset = 0;
- uio.uio_segflg = UIO_USERSPACE;
- uio.uio_resid = size;
- uio.uio_iovcnt = 1;
-
- VOP_READLINK(vp, &uio, 0, NULL, error);
- if (error)
- return -error;
-
- return (size - uio.uio_resid);
-}
-
-/*
- * careful here - this function can get called recursively, so
- * we need to be very careful about how much stack we use.
- * uio is kmalloced for this reason...
- */
-STATIC int
-linvfs_follow_link(
- struct dentry *dentry,
- struct nameidata *nd)
-{
- vnode_t *vp;
- uio_t *uio;
- iovec_t iov;
- int error;
- char *link;
-
- ASSERT(dentry);
- ASSERT(nd);
-
- link = (char *)kmalloc(MAXNAMELEN+1, GFP_KERNEL);
- if (!link)
- return -ENOMEM;
-
- uio = (uio_t *)kmalloc(sizeof(uio_t), GFP_KERNEL);
- if (!uio) {
- kfree(link);
- return -ENOMEM;
- }
-
- vp = LINVFS_GET_VP(dentry->d_inode);
-
- iov.iov_base = link;
- iov.iov_len = MAXNAMELEN;
-
- uio->uio_iov = &iov;
- uio->uio_offset = 0;
- uio->uio_segflg = UIO_SYSSPACE;
- uio->uio_resid = MAXNAMELEN;
- uio->uio_iovcnt = 1;
-
- VOP_READLINK(vp, uio, 0, NULL, error);
- if (error) {
- kfree(uio);
- kfree(link);
- return -error;
- }
-
- link[MAXNAMELEN - uio->uio_resid] = '\0';
- kfree(uio);
-
- /* vfs_follow_link returns (-) errors */
- error = vfs_follow_link(nd, link);
- kfree(link);
- return error;
-}
-
-#ifdef CONFIG_XFS_POSIX_ACL
-STATIC int
-linvfs_permission(
- struct inode *inode,
- int mode,
- struct nameidata *nd)
-{
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error;
-
- mode <<= 6; /* convert from linux to vnode access bits */
- VOP_ACCESS(vp, mode, NULL, error);
- return -error;
-}
-#else
-#define linvfs_permission NULL
-#endif
-
-STATIC int
-linvfs_getattr(
- struct vfsmount *mnt,
- struct dentry *dentry,
- struct kstat *stat)
-{
- struct inode *inode = dentry->d_inode;
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error = 0;
-
- if (unlikely(vp->v_flag & VMODIFIED))
- error = vn_revalidate(vp);
- if (!error)
- generic_fillattr(inode, stat);
- return 0;
-}
-
-STATIC int
-linvfs_setattr(
- struct dentry *dentry,
- struct iattr *attr)
-{
- struct inode *inode = dentry->d_inode;
- unsigned int ia_valid = attr->ia_valid;
- vnode_t *vp = LINVFS_GET_VP(inode);
- vattr_t vattr;
- int flags = 0;
- int error;
-
- memset(&vattr, 0, sizeof(vattr_t));
- if (ia_valid & ATTR_UID) {
- vattr.va_mask |= XFS_AT_UID;
- vattr.va_uid = attr->ia_uid;
- }
- if (ia_valid & ATTR_GID) {
- vattr.va_mask |= XFS_AT_GID;
- vattr.va_gid = attr->ia_gid;
- }
- if (ia_valid & ATTR_SIZE) {
- vattr.va_mask |= XFS_AT_SIZE;
- vattr.va_size = attr->ia_size;
- }
- if (ia_valid & ATTR_ATIME) {
- vattr.va_mask |= XFS_AT_ATIME;
- vattr.va_atime = attr->ia_atime;
- }
- if (ia_valid & ATTR_MTIME) {
- vattr.va_mask |= XFS_AT_MTIME;
- vattr.va_mtime = attr->ia_mtime;
- }
- if (ia_valid & ATTR_CTIME) {
- vattr.va_mask |= XFS_AT_CTIME;
- vattr.va_ctime = attr->ia_ctime;
- }
- if (ia_valid & ATTR_MODE) {
- vattr.va_mask |= XFS_AT_MODE;
- vattr.va_mode = attr->ia_mode;
- if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
- inode->i_mode &= ~S_ISGID;
- }
-
- if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))
- flags = ATTR_UTIME;
-#ifdef ATTR_NO_BLOCK
- if ((ia_valid & ATTR_NO_BLOCK))
- flags |= ATTR_NONBLOCK;
-#endif
-
- VOP_SETATTR(vp, &vattr, flags, NULL, error);
- if (error)
- return(-error); /* Positive error up from XFS */
- if (ia_valid & ATTR_SIZE) {
- error = vmtruncate(inode, attr->ia_size);
- }
-
- if (!error) {
- vn_revalidate(vp);
- }
- return error;
-}
-
-STATIC void
-linvfs_truncate(
- struct inode *inode)
-{
- block_truncate_page(inode->i_mapping, inode->i_size, linvfs_get_block);
-}
-
-STATIC int
-linvfs_setxattr(
- struct dentry *dentry,
- const char *name,
- const void *data,
- size_t size,
- int flags)
-{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
- char *attr = (char *)name;
- attrnames_t *namesp;
- int xflags = 0;
- int error;
-
- namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- attr += namesp->attr_namelen;
- error = namesp->attr_capable(vp, NULL);
- if (error)
- return error;
-
- /* Convert Linux syscall to XFS internal ATTR flags */
- if (flags & XATTR_CREATE)
- xflags |= ATTR_CREATE;
- if (flags & XATTR_REPLACE)
- xflags |= ATTR_REPLACE;
- xflags |= namesp->attr_flag;
- return namesp->attr_set(vp, attr, (void *)data, size, xflags);
-}
-
-STATIC ssize_t
-linvfs_getxattr(
- struct dentry *dentry,
- const char *name,
- void *data,
- size_t size)
-{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
- char *attr = (char *)name;
- attrnames_t *namesp;
- int xflags = 0;
- ssize_t error;
-
- namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- attr += namesp->attr_namelen;
- error = namesp->attr_capable(vp, NULL);
- if (error)
- return error;
-
- /* Convert Linux syscall to XFS internal ATTR flags */
- if (!size) {
- xflags |= ATTR_KERNOVAL;
- data = NULL;
- }
- xflags |= namesp->attr_flag;
- return namesp->attr_get(vp, attr, (void *)data, size, xflags);
-}
-
-STATIC ssize_t
-linvfs_listxattr(
- struct dentry *dentry,
- char *data,
- size_t size)
-{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
- int error, xflags = ATTR_KERNAMELS;
- ssize_t result;
-
- if (!size)
- xflags |= ATTR_KERNOVAL;
- xflags |= capable(CAP_SYS_ADMIN) ? ATTR_KERNFULLS : ATTR_KERNORMALS;
-
- error = attr_generic_list(vp, data, size, xflags, &result);
- if (error < 0)
- return error;
- return result;
-}
-
-STATIC int
-linvfs_removexattr(
- struct dentry *dentry,
- const char *name)
-{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
- char *attr = (char *)name;
- attrnames_t *namesp;
- int xflags = 0;
- int error;
-
- namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- attr += namesp->attr_namelen;
- error = namesp->attr_capable(vp, NULL);
- if (error)
- return error;
- xflags |= namesp->attr_flag;
- return namesp->attr_remove(vp, attr, xflags);
-}
-
-
-struct inode_operations linvfs_file_inode_operations = {
- .permission = linvfs_permission,
- .truncate = linvfs_truncate,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
-};
-
-struct inode_operations linvfs_dir_inode_operations = {
- .create = linvfs_create,
- .lookup = linvfs_lookup,
- .link = linvfs_link,
- .unlink = linvfs_unlink,
- .symlink = linvfs_symlink,
- .mkdir = linvfs_mkdir,
- .rmdir = linvfs_rmdir,
- .mknod = linvfs_mknod,
- .rename = linvfs_rename,
- .permission = linvfs_permission,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
-};
-
-struct inode_operations linvfs_symlink_inode_operations = {
- .readlink = linvfs_readlink,
- .follow_link = linvfs_follow_link,
- .permission = linvfs_permission,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
-};
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_IOPS_H__
-#define __XFS_IOPS_H__
-
-extern struct inode_operations linvfs_file_inode_operations;
-extern struct inode_operations linvfs_dir_inode_operations;
-extern struct inode_operations linvfs_symlink_inode_operations;
-
-extern struct file_operations linvfs_file_operations;
-extern struct file_operations linvfs_invis_file_operations;
-extern struct file_operations linvfs_dir_operations;
-
-extern struct address_space_operations linvfs_aops;
-
-extern int linvfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
-extern void linvfs_unwritten_done(struct buffer_head *, int);
-
-extern int xfs_ioctl(struct bhv_desc *, struct inode *, struct file *,
- int, unsigned int, unsigned long);
-
-#endif /* __XFS_IOPS_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_LINUX__
-#define __XFS_LINUX__
-
-#include <linux/types.h>
-#include <linux/config.h>
-
-/*
- * Some types are conditional depending on the target system.
- * XFS_BIG_BLKNOS needs block layer disk addresses to be 64 bits.
- * XFS_BIG_INUMS needs the VFS inode number to be 64 bits, as well
- * as requiring XFS_BIG_BLKNOS to be set.
- */
-#if defined(CONFIG_LBD) || (BITS_PER_LONG == 64)
-# define XFS_BIG_BLKNOS 1
-# if BITS_PER_LONG == 64
-# define XFS_BIG_INUMS 1
-# else
-# define XFS_BIG_INUMS 0
-# endif
-#else
-# define XFS_BIG_BLKNOS 0
-# define XFS_BIG_INUMS 0
-#endif
-
-#include <xfs_types.h>
-#include <xfs_arch.h>
-
-#include <kmem.h>
-#include <mrlock.h>
-#include <spin.h>
-#include <sv.h>
-#include <mutex.h>
-#include <sema.h>
-#include <time.h>
-
-#include <support/qsort.h>
-#include <support/ktrace.h>
-#include <support/debug.h>
-#include <support/move.h>
-#include <support/uuid.h>
-
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/blkdev.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/file.h>
-#include <linux/swap.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/bitops.h>
-#include <linux/major.h>
-#include <linux/pagemap.h>
-#include <linux/vfs.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <linux/version.h>
-
-#include <asm/page.h>
-#include <asm/div64.h>
-#include <asm/param.h>
-#include <asm/uaccess.h>
-#include <asm/byteorder.h>
-#include <asm/unaligned.h>
-
-#include <xfs_behavior.h>
-#include <xfs_vfs.h>
-#include <xfs_cred.h>
-#include <xfs_vnode.h>
-#include <xfs_stats.h>
-#include <xfs_sysctl.h>
-#include <xfs_iops.h>
-#include <xfs_super.h>
-#include <xfs_globals.h>
-#include <xfs_fs_subr.h>
-#include <xfs_lrw.h>
-#include <xfs_buf.h>
-
-/*
- * Feature macros (disable/enable)
- */
-#undef HAVE_REFCACHE /* reference cache not needed for NFS in 2.6 */
-#define HAVE_SENDFILE /* sendfile(2) exists in 2.6, but not in 2.4 */
-
-/*
- * State flag for unwritten extent buffers.
- *
- * We need to be able to distinguish between these and delayed
- * allocate buffers within XFS. The generic IO path code does
- * not need to distinguish - we use the BH_Delay flag for both
- * delalloc and these ondisk-uninitialised buffers.
- */
-BUFFER_FNS(PrivateStart, unwritten);
-static inline void set_buffer_unwritten_io(struct buffer_head *bh)
-{
- bh->b_end_io = linvfs_unwritten_done;
-}
-
-#define xfs_refcache_size xfs_params.refcache_size.val
-#define xfs_refcache_purge_count xfs_params.refcache_purge.val
-#define restricted_chown xfs_params.restrict_chown.val
-#define irix_sgid_inherit xfs_params.sgid_inherit.val
-#define irix_symlink_mode xfs_params.symlink_mode.val
-#define xfs_panic_mask xfs_params.panic_mask.val
-#define xfs_error_level xfs_params.error_level.val
-#define xfs_syncd_interval (xfs_params.sync_interval.val * HZ / USER_HZ)
-#define xfs_stats_clear xfs_params.stats_clear.val
-#define xfs_inherit_sync xfs_params.inherit_sync.val
-#define xfs_inherit_nodump xfs_params.inherit_nodump.val
-#define xfs_inherit_noatime xfs_params.inherit_noatim.val
-#define xfs_flush_interval (xfs_params.flush_interval.val * HZ / USER_HZ)
-#define xfs_age_buffer (xfs_params.age_buffer.val * HZ / USER_HZ)
-
-#define current_cpu() smp_processor_id()
-#define current_pid() (current->pid)
-#define current_fsuid(cred) (current->fsuid)
-#define current_fsgid(cred) (current->fsgid)
-
-#define NBPP PAGE_SIZE
-#define DPPSHFT (PAGE_SHIFT - 9)
-#define NDPP (1 << (PAGE_SHIFT - 9))
-#define dtop(DD) (((DD) + NDPP - 1) >> DPPSHFT)
-#define dtopt(DD) ((DD) >> DPPSHFT)
-#define dpoff(DD) ((DD) & (NDPP-1))
-
-#define NBBY 8 /* number of bits per byte */
-#define NBPC PAGE_SIZE /* Number of bytes per click */
-#define BPCSHIFT PAGE_SHIFT /* LOG2(NBPC) if exact */
-
-/*
- * Size of block device i/o is parameterized here.
- * Currently the system supports page-sized i/o.
- */
-#define BLKDEV_IOSHIFT BPCSHIFT
-#define BLKDEV_IOSIZE (1<<BLKDEV_IOSHIFT)
-/* number of BB's per block device block */
-#define BLKDEV_BB BTOBB(BLKDEV_IOSIZE)
-
-/* bytes to clicks */
-#define btoc(x) (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT)
-#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT)
-#define btoc64(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT)
-#define btoct64(x) ((__uint64_t)(x)>>BPCSHIFT)
-#define io_btoc(x) (((__psunsigned_t)(x)+(IO_NBPC-1))>>IO_BPCSHIFT)
-#define io_btoct(x) ((__psunsigned_t)(x)>>IO_BPCSHIFT)
-
-/* off_t bytes to clicks */
-#define offtoc(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT)
-#define offtoct(x) ((xfs_off_t)(x)>>BPCSHIFT)
-
-/* clicks to off_t bytes */
-#define ctooff(x) ((xfs_off_t)(x)<<BPCSHIFT)
-
-/* clicks to bytes */
-#define ctob(x) ((__psunsigned_t)(x)<<BPCSHIFT)
-#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT)
-#define ctob64(x) ((__uint64_t)(x)<<BPCSHIFT)
-#define io_ctob(x) ((__psunsigned_t)(x)<<IO_BPCSHIFT)
-
-/* bytes to clicks */
-#define btoc(x) (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT)
-
-#ifndef CELL_CAPABLE
-#define FSC_NOTIFY_NAME_CHANGED(vp)
-#endif
-
-#ifndef ENOATTR
-#define ENOATTR ENODATA /* Attribute not found */
-#endif
-
-/* Note: EWRONGFS never visible outside the kernel */
-#define EWRONGFS EINVAL /* Mount with wrong filesystem type */
-
-/*
- * XXX EFSCORRUPTED needs a real value in errno.h. asm-i386/errno.h won't
- * return codes out of its known range in errno.
- * XXX Also note: needs to be < 1000 and fairly unique on Linux (mustn't
- * conflict with any code we use already or any code a driver may use)
- * XXX Some options (currently we do #2):
- * 1/ New error code ["Filesystem is corrupted", _after_ glibc updated]
- * 2/ 990 ["Unknown error 990"]
- * 3/ EUCLEAN ["Structure needs cleaning"]
- * 4/ Convert EFSCORRUPTED to EIO [just prior to return into userspace]
- */
-#define EFSCORRUPTED 990 /* Filesystem is corrupted */
-
-#define SYNCHRONIZE() barrier()
-#define __return_address __builtin_return_address(0)
-
-/*
- * IRIX (BSD) quotactl makes use of separate commands for user/group,
- * whereas on Linux the syscall encodes this information into the cmd
- * field (see the QCMD macro in quota.h). These macros help keep the
- * code portable - they are not visible from the syscall interface.
- */
-#define Q_XSETGQLIM XQM_CMD(0x8) /* set groups disk limits */
-#define Q_XGETGQUOTA XQM_CMD(0x9) /* get groups disk limits */
-
-/* IRIX uses a dynamic sizing algorithm (ndquot = 200 + numprocs*2) */
-/* we may well need to fine-tune this if it ever becomes an issue. */
-#define DQUOT_MAX_HEURISTIC 1024 /* NR_DQUOTS */
-#define ndquot DQUOT_MAX_HEURISTIC
-
-/* IRIX uses the current size of the name cache to guess a good value */
-/* - this isn't the same but is a good enough starting point for now. */
-#define DQUOT_HASH_HEURISTIC files_stat.nr_files
-
-/* IRIX inodes maintain the project ID also, zero this field on Linux */
-#define DEFAULT_PROJID 0
-#define dfltprid DEFAULT_PROJID
-
-#define MAXPATHLEN 1024
-
-#define MIN(a,b) (min(a,b))
-#define MAX(a,b) (max(a,b))
-#define howmany(x, y) (((x)+((y)-1))/(y))
-#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
-
-#define xfs_stack_trace() dump_stack()
-
-#define xfs_itruncate_data(ip, off) \
- (-vmtruncate(LINVFS_GET_IP(XFS_ITOV(ip)), (off)))
-
-
-/* Move the kernel do_div definition off to one side */
-
-#if defined __i386__
-/* For ia32 we need to pull some tricks to get past various versions
- * of the compiler which do not like us using do_div in the middle
- * of large functions.
- */
-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
-{
- __u32 mod;
-
- switch (n) {
- case 4:
- mod = *(__u32 *)a % b;
- *(__u32 *)a = *(__u32 *)a / b;
- return mod;
- case 8:
- {
- unsigned long __upper, __low, __high, __mod;
- __u64 c = *(__u64 *)a;
- __upper = __high = c >> 32;
- __low = c;
- if (__high) {
- __upper = __high % (b);
- __high = __high / (b);
- }
- asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper));
- asm("":"=A" (c):"a" (__low),"d" (__high));
- *(__u64 *)a = c;
- return __mod;
- }
- }
-
- /* NOTREACHED */
- return 0;
-}
-
-/* Side effect free 64 bit mod operation */
-static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
-{
- switch (n) {
- case 4:
- return *(__u32 *)a % b;
- case 8:
- {
- unsigned long __upper, __low, __high, __mod;
- __u64 c = *(__u64 *)a;
- __upper = __high = c >> 32;
- __low = c;
- if (__high) {
- __upper = __high % (b);
- __high = __high / (b);
- }
- asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper));
- asm("":"=A" (c):"a" (__low),"d" (__high));
- return __mod;
- }
- }
-
- /* NOTREACHED */
- return 0;
-}
-#else
-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
-{
- __u32 mod;
-
- switch (n) {
- case 4:
- mod = *(__u32 *)a % b;
- *(__u32 *)a = *(__u32 *)a / b;
- return mod;
- case 8:
- mod = do_div(*(__u64 *)a, b);
- return mod;
- }
-
- /* NOTREACHED */
- return 0;
-}
-
-/* Side effect free 64 bit mod operation */
-static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
-{
- switch (n) {
- case 4:
- return *(__u32 *)a % b;
- case 8:
- {
- __u64 c = *(__u64 *)a;
- return do_div(c, b);
- }
- }
-
- /* NOTREACHED */
- return 0;
-}
-#endif
-
-#undef do_div
-#define do_div(a, b) xfs_do_div(&(a), (b), sizeof(a))
-#define do_mod(a, b) xfs_do_mod(&(a), (b), sizeof(a))
-
-static inline __uint64_t roundup_64(__uint64_t x, __uint32_t y)
-{
- x += y - 1;
- do_div(x, y);
- return(x * y);
-}
-
-#endif /* __XFS_LINUX__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-/*
- * fs/xfs/linux/xfs_lrw.c (Linux Read Write stuff)
- *
- */
-
-#include "xfs.h"
-
-#include "xfs_fs.h"
-#include "xfs_inum.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_dir.h"
-#include "xfs_dir2.h"
-#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
-#include "xfs_quota.h"
-#include "xfs_mount.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir_sf.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
-#include "xfs_bmap.h"
-#include "xfs_bit.h"
-#include "xfs_rtalloc.h"
-#include "xfs_error.h"
-#include "xfs_itable.h"
-#include "xfs_rw.h"
-#include "xfs_acl.h"
-#include "xfs_cap.h"
-#include "xfs_mac.h"
-#include "xfs_attr.h"
-#include "xfs_inode_item.h"
-#include "xfs_buf_item.h"
-#include "xfs_utils.h"
-#include "xfs_iomap.h"
-
-#include <linux/capability.h>
-
-
-#if defined(XFS_RW_TRACE)
-void
-xfs_rw_enter_trace(
- int tag,
- xfs_iocore_t *io,
- const struct iovec *iovp,
- size_t segs,
- loff_t offset,
- int ioflags)
-{
- xfs_inode_t *ip = XFS_IO_INODE(io);
-
- if (ip->i_rwtrace == NULL)
- return;
- ktrace_enter(ip->i_rwtrace,
- (void *)(unsigned long)tag,
- (void *)ip,
- (void *)((unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff)),
- (void *)((unsigned long)(ip->i_d.di_size & 0xffffffff)),
- (void *)(__psint_t)iovp,
- (void *)((unsigned long)segs),
- (void *)((unsigned long)((offset >> 32) & 0xffffffff)),
- (void *)((unsigned long)(offset & 0xffffffff)),
- (void *)((unsigned long)ioflags),
- (void *)((unsigned long)((io->io_new_size >> 32) & 0xffffffff)),
- (void *)((unsigned long)(io->io_new_size & 0xffffffff)),
- (void *)NULL,
- (void *)NULL,
- (void *)NULL,
- (void *)NULL,
- (void *)NULL);
-}
-
-void
-xfs_inval_cached_trace(
- xfs_iocore_t *io,
- xfs_off_t offset,
- xfs_off_t len,
- xfs_off_t first,
- xfs_off_t last)
-{
- xfs_inode_t *ip = XFS_IO_INODE(io);
-
- if (ip->i_rwtrace == NULL)
- return;
- ktrace_enter(ip->i_rwtrace,
- (void *)(__psint_t)XFS_INVAL_CACHED,
- (void *)ip,
- (void *)((unsigned long)((offset >> 32) & 0xffffffff)),
- (void *)((unsigned long)(offset & 0xffffffff)),
- (void *)((unsigned long)((len >> 32) & 0xffffffff)),
- (void *)((unsigned long)(len & 0xffffffff)),
- (void *)((unsigned long)((first >> 32) & 0xffffffff)),
- (void *)((unsigned long)(first & 0xffffffff)),
- (void *)((unsigned long)((last >> 32) & 0xffffffff)),
- (void *)((unsigned long)(last & 0xffffffff)),
- (void *)NULL,
- (void *)NULL,
- (void *)NULL,
- (void *)NULL,
- (void *)NULL,
- (void *)NULL);
-}
-#endif
-
-/*
- * xfs_iozero
- *
- * xfs_iozero clears the specified range of buffer supplied,
- * and marks all the affected blocks as valid and modified. If
- * an affected block is not allocated, it will be allocated. If
- * an affected block is not completely overwritten, and is not
- * valid before the operation, it will be read from disk before
- * being partially zeroed.
- */
-STATIC int
-xfs_iozero(
- struct inode *ip, /* inode */
- loff_t pos, /* offset in file */
- size_t count, /* size of data to zero */
- loff_t end_size) /* max file size to set */
-{
- unsigned bytes;
- struct page *page;
- struct address_space *mapping;
- char *kaddr;
- int status;
-
- mapping = ip->i_mapping;
- do {
- unsigned long index, offset;
-
- offset = (pos & (PAGE_CACHE_SIZE -1)); /* Within page */
- index = pos >> PAGE_CACHE_SHIFT;
- bytes = PAGE_CACHE_SIZE - offset;
- if (bytes > count)
- bytes = count;
-
- status = -ENOMEM;
- page = grab_cache_page(mapping, index);
- if (!page)
- break;
-
- kaddr = kmap(page);
- status = mapping->a_ops->prepare_write(NULL, page, offset,
- offset + bytes);
- if (status) {
- goto unlock;
- }
-
- memset((void *) (kaddr + offset), 0, bytes);
- flush_dcache_page(page);
- status = mapping->a_ops->commit_write(NULL, page, offset,
- offset + bytes);
- if (!status) {
- pos += bytes;
- count -= bytes;
- if (pos > i_size_read(ip))
- i_size_write(ip, pos < end_size ? pos : end_size);
- }
-
-unlock:
- kunmap(page);
- unlock_page(page);
- page_cache_release(page);
- if (status)
- break;
- } while (count);
-
- return (-status);
-}
-
-/*
- * xfs_inval_cached_pages
- *
- * This routine is responsible for keeping direct I/O and buffered I/O
- * somewhat coherent. From here we make sure that we're at least
- * temporarily holding the inode I/O lock exclusively and then call
- * the page cache to flush and invalidate any cached pages. If there
- * are no cached pages this routine will be very quick.
- */
-void
-xfs_inval_cached_pages(
- vnode_t *vp,
- xfs_iocore_t *io,
- xfs_off_t offset,
- int write,
- int relock)
-{
- xfs_mount_t *mp;
-
- if (!VN_CACHED(vp)) {
- return;
- }
-
- mp = io->io_mount;
-
- /*
- * We need to get the I/O lock exclusively in order
- * to safely invalidate pages and mappings.
- */
- if (relock) {
- XFS_IUNLOCK(mp, io, XFS_IOLOCK_SHARED);
- XFS_ILOCK(mp, io, XFS_IOLOCK_EXCL);
- }
-
- /* Writing beyond EOF creates a hole that must be zeroed */
- if (write && (offset > XFS_SIZE(mp, io))) {
- xfs_fsize_t isize;
-
- XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
- isize = XFS_SIZE(mp, io);
- if (offset > isize) {
- xfs_zero_eof(vp, io, offset, isize, offset);
- }
- XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
- }
-
- xfs_inval_cached_trace(io, offset, -1, ctooff(offtoct(offset)), -1);
- VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(offset)), -1, FI_REMAPF_LOCKED);
- if (relock) {
- XFS_ILOCK_DEMOTE(mp, io, XFS_IOLOCK_EXCL);
- }
-}
-
-ssize_t /* bytes read, or (-) error */
-xfs_read(
- bhv_desc_t *bdp,
- struct kiocb *iocb,
- const struct iovec *iovp,
- unsigned int segs,
- loff_t *offset,
- int ioflags,
- cred_t *credp)
-{
- struct file *file = iocb->ki_filp;
- size_t size = 0;
- ssize_t ret;
- xfs_fsize_t n;
- xfs_inode_t *ip;
- xfs_mount_t *mp;
- vnode_t *vp;
- unsigned long seg;
-
- ip = XFS_BHVTOI(bdp);
- vp = BHV_TO_VNODE(bdp);
- mp = ip->i_mount;
-
- XFS_STATS_INC(xs_read_calls);
-
- /* START copy & waste from filemap.c */
- for (seg = 0; seg < segs; seg++) {
- const struct iovec *iv = &iovp[seg];
-
- /*
- * If any segment has a negative length, or the cumulative
- * length ever wraps negative then return -EINVAL.
- */
- size += iv->iov_len;
- if (unlikely((ssize_t)(size|iv->iov_len) < 0))
- return XFS_ERROR(-EINVAL);
- }
- /* END copy & waste from filemap.c */
-
- if (ioflags & IO_ISDIRECT) {
- xfs_buftarg_t *target =
- (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
- mp->m_rtdev_targp : mp->m_ddev_targp;
- if ((*offset & target->pbr_smask) ||
- (size & target->pbr_smask)) {
- if (*offset == ip->i_d.di_size) {
- return (0);
- }
- return -XFS_ERROR(EINVAL);
- }
- }
-
- n = XFS_MAXIOFFSET(mp) - *offset;
- if ((n <= 0) || (size == 0))
- return 0;
-
- if (n < size)
- size = n;
-
- if (XFS_FORCED_SHUTDOWN(mp)) {
- return -EIO;
- }
-
- /* OK so we are holding the I/O lock for the duration
- * of the submission, then what happens if the I/O
- * does not really happen here, but is scheduled
- * later?
- */
- xfs_ilock(ip, XFS_IOLOCK_SHARED);
-
- if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) &&
- !(ioflags & IO_INVIS)) {
- vrwlock_t locktype = VRWLOCK_READ;
-
- ret = XFS_SEND_DATA(mp, DM_EVENT_READ,
- BHV_TO_VNODE(bdp), *offset, size,
- FILP_DELAY_FLAG(file), &locktype);
- if (ret) {
- xfs_iunlock(ip, XFS_IOLOCK_SHARED);
- return -ret;
- }
- }
-
- xfs_rw_enter_trace(XFS_READ_ENTER, &ip->i_iocore,
- iovp, segs, *offset, ioflags);
- ret = __generic_file_aio_read(iocb, iovp, segs, offset);
- xfs_iunlock(ip, XFS_IOLOCK_SHARED);
-
- if (ret > 0)
- XFS_STATS_ADD(xs_read_bytes, ret);
-
- if (likely(!(ioflags & IO_INVIS)))
- xfs_ichgtime(ip, XFS_ICHGTIME_ACC);
-
- return ret;
-}
-
-ssize_t
-xfs_sendfile(
- bhv_desc_t *bdp,
- struct file *filp,
- loff_t *offset,
- int ioflags,
- size_t count,
- read_actor_t actor,
- void *target,
- cred_t *credp)
-{
- ssize_t ret;
- xfs_fsize_t n;
- xfs_inode_t *ip;
- xfs_mount_t *mp;
- vnode_t *vp;
-
- ip = XFS_BHVTOI(bdp);
- vp = BHV_TO_VNODE(bdp);
- mp = ip->i_mount;
-
- XFS_STATS_INC(xs_read_calls);
-
- n = XFS_MAXIOFFSET(mp) - *offset;
- if ((n <= 0) || (count == 0))
- return 0;
-
- if (n < count)
- count = n;
-
- if (XFS_FORCED_SHUTDOWN(ip->i_mount))
- return -EIO;
-
- xfs_ilock(ip, XFS_IOLOCK_SHARED);
-
- if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) &&
- (!(ioflags & IO_INVIS))) {
- vrwlock_t locktype = VRWLOCK_READ;
- int error;
-
- error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp), *offset, count,
- FILP_DELAY_FLAG(filp), &locktype);
- if (error) {
- xfs_iunlock(ip, XFS_IOLOCK_SHARED);
- return -error;
- }
- }
- xfs_rw_enter_trace(XFS_SENDFILE_ENTER, &ip->i_iocore,
- target, count, *offset, ioflags);
- ret = generic_file_sendfile(filp, offset, count, actor, target);
- xfs_iunlock(ip, XFS_IOLOCK_SHARED);
-
- XFS_STATS_ADD(xs_read_bytes, ret);
- xfs_ichgtime(ip, XFS_ICHGTIME_ACC);
- return ret;
-}
-
-/*
- * This routine is called to handle zeroing any space in the last
- * block of the file that is beyond the EOF. We do this since the
- * size is being increased without writing anything to that block
- * and we don't want anyone to read the garbage on the disk.
- */
-STATIC int /* error (positive) */
-xfs_zero_last_block(
- struct inode *ip,
- xfs_iocore_t *io,
- xfs_off_t offset,
- xfs_fsize_t isize,
- xfs_fsize_t end_size)
-{
- xfs_fileoff_t last_fsb;
- xfs_mount_t *mp;
- int nimaps;
- int zero_offset;
- int zero_len;
- int isize_fsb_offset;
- int error = 0;
- xfs_bmbt_irec_t imap;
- loff_t loff;
- size_t lsize;
-
- ASSERT(ismrlocked(io->io_lock, MR_UPDATE) != 0);
- ASSERT(offset > isize);
-
- mp = io->io_mount;
-
- isize_fsb_offset = XFS_B_FSB_OFFSET(mp, isize);
- if (isize_fsb_offset == 0) {
- /*
- * There are no extra bytes in the last block on disk to
- * zero, so return.
- */
- return 0;
- }
-
- last_fsb = XFS_B_TO_FSBT(mp, isize);
- nimaps = 1;
- error = XFS_BMAPI(mp, NULL, io, last_fsb, 1, 0, NULL, 0, &imap,
- &nimaps, NULL);
- if (error) {
- return error;
- }
- ASSERT(nimaps > 0);
- /*
- * If the block underlying isize is just a hole, then there
- * is nothing to zero.
- */
- if (imap.br_startblock == HOLESTARTBLOCK) {
- return 0;
- }
- /*
- * Zero the part of the last block beyond the EOF, and write it
- * out sync. We need to drop the ilock while we do this so we
- * don't deadlock when the buffer cache calls back to us.
- */
- XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
- loff = XFS_FSB_TO_B(mp, last_fsb);
- lsize = XFS_FSB_TO_B(mp, 1);
-
- zero_offset = isize_fsb_offset;
- zero_len = mp->m_sb.sb_blocksize - isize_fsb_offset;
-
- error = xfs_iozero(ip, loff + zero_offset, zero_len, end_size);
-
- XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
- ASSERT(error >= 0);
- return error;
-}
-
-/*
- * Zero any on disk space between the current EOF and the new,
- * larger EOF. This handles the normal case of zeroing the remainder
- * of the last block in the file and the unusual case of zeroing blocks
- * out beyond the size of the file. This second case only happens
- * with fixed size extents and when the system crashes before the inode
- * size was updated but after blocks were allocated. If fill is set,
- * then any holes in the range are filled and zeroed. If not, the holes
- * are left alone as holes.
- */
-
-int /* error (positive) */
-xfs_zero_eof(
- vnode_t *vp,
- xfs_iocore_t *io,
- xfs_off_t offset, /* starting I/O offset */
- xfs_fsize_t isize, /* current inode size */
- xfs_fsize_t end_size) /* terminal inode size */
-{
- struct inode *ip = LINVFS_GET_IP(vp);
- xfs_fileoff_t start_zero_fsb;
- xfs_fileoff_t end_zero_fsb;
- xfs_fileoff_t prev_zero_fsb;
- xfs_fileoff_t zero_count_fsb;
- xfs_fileoff_t last_fsb;
- xfs_extlen_t buf_len_fsb;
- xfs_extlen_t prev_zero_count;
- xfs_mount_t *mp;
- int nimaps;
- int error = 0;
- xfs_bmbt_irec_t imap;
- loff_t loff;
- size_t lsize;
-
- ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
- ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
-
- mp = io->io_mount;
-
- /*
- * First handle zeroing the block on which isize resides.
- * We only zero a part of that block so it is handled specially.
- */
- error = xfs_zero_last_block(ip, io, offset, isize, end_size);
- if (error) {
- ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
- ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
- return error;
- }
-
- /*
- * Calculate the range between the new size and the old
- * where blocks needing to be zeroed may exist. To get the
- * block where the last byte in the file currently resides,
- * we need to subtract one from the size and truncate back
- * to a block boundary. We subtract 1 in case the size is
- * exactly on a block boundary.
- */
- last_fsb = isize ? XFS_B_TO_FSBT(mp, isize - 1) : (xfs_fileoff_t)-1;
- start_zero_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)isize);
- end_zero_fsb = XFS_B_TO_FSBT(mp, offset - 1);
- ASSERT((xfs_sfiloff_t)last_fsb < (xfs_sfiloff_t)start_zero_fsb);
- if (last_fsb == end_zero_fsb) {
- /*
- * The size was only incremented on its last block.
- * We took care of that above, so just return.
- */
- return 0;
- }
-
- ASSERT(start_zero_fsb <= end_zero_fsb);
- prev_zero_fsb = NULLFILEOFF;
- prev_zero_count = 0;
- while (start_zero_fsb <= end_zero_fsb) {
- nimaps = 1;
- zero_count_fsb = end_zero_fsb - start_zero_fsb + 1;
- error = XFS_BMAPI(mp, NULL, io, start_zero_fsb, zero_count_fsb,
- 0, NULL, 0, &imap, &nimaps, NULL);
- if (error) {
- ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
- ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
- return error;
- }
- ASSERT(nimaps > 0);
-
- if (imap.br_state == XFS_EXT_UNWRITTEN ||
- imap.br_startblock == HOLESTARTBLOCK) {
- /*
- * This loop handles initializing pages that were
- * partially initialized by the code below this
- * loop. It basically zeroes the part of the page
- * that sits on a hole and sets the page as P_HOLE
- * and calls remapf if it is a mapped file.
- */
- prev_zero_fsb = NULLFILEOFF;
- prev_zero_count = 0;
- start_zero_fsb = imap.br_startoff +
- imap.br_blockcount;
- ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
- continue;
- }
-
- /*
- * There are blocks in the range requested.
- * Zero them a single write at a time. We actually
- * don't zero the entire range returned if it is
- * too big and simply loop around to get the rest.
- * That is not the most efficient thing to do, but it
- * is simple and this path should not be exercised often.
- */
- buf_len_fsb = XFS_FILBLKS_MIN(imap.br_blockcount,
- mp->m_writeio_blocks << 8);
- /*
- * Drop the inode lock while we're doing the I/O.
- * We'll still have the iolock to protect us.
- */
- XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
-
- loff = XFS_FSB_TO_B(mp, start_zero_fsb);
- lsize = XFS_FSB_TO_B(mp, buf_len_fsb);
-
- error = xfs_iozero(ip, loff, lsize, end_size);
-
- if (error) {
- goto out_lock;
- }
-
- prev_zero_fsb = start_zero_fsb;
- prev_zero_count = buf_len_fsb;
- start_zero_fsb = imap.br_startoff + buf_len_fsb;
- ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
-
- XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
- }
-
- return 0;
-
-out_lock:
-
- XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
- ASSERT(error >= 0);
- return error;
-}
-
-ssize_t /* bytes written, or (-) error */
-xfs_write(
- bhv_desc_t *bdp,
- struct kiocb *iocb,
- const struct iovec *iovp,
- unsigned int segs,
- loff_t *offset,
- int ioflags,
- cred_t *credp)
-{
- struct file *file = iocb->ki_filp;
- size_t size = 0;
- xfs_inode_t *xip;
- xfs_mount_t *mp;
- ssize_t ret;
- int error = 0;
- xfs_fsize_t isize, new_size;
- xfs_fsize_t n, limit;
- xfs_iocore_t *io;
- vnode_t *vp;
- unsigned long seg;
- int iolock;
- int eventsent = 0;
- vrwlock_t locktype;
-
- XFS_STATS_INC(xs_write_calls);
-
- vp = BHV_TO_VNODE(bdp);
- xip = XFS_BHVTOI(bdp);
-
- /* START copy & waste from filemap.c */
- for (seg = 0; seg < segs; seg++) {
- const struct iovec *iv = &iovp[seg];
-
- /*
- * If any segment has a negative length, or the cumulative
- * length ever wraps negative then return -EINVAL.
- */
- size += iv->iov_len;
- if (unlikely((ssize_t)(size|iv->iov_len) < 0))
- return XFS_ERROR(-EINVAL);
- }
- /* END copy & waste from filemap.c */
-
- if (size == 0)
- return 0;
-
- io = &xip->i_iocore;
- mp = io->io_mount;
-
- if (XFS_FORCED_SHUTDOWN(mp)) {
- return -EIO;
- }
-
- if (ioflags & IO_ISDIRECT) {
- xfs_buftarg_t *target =
- (xip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
- mp->m_rtdev_targp : mp->m_ddev_targp;
-
- if ((*offset & target->pbr_smask) ||
- (size & target->pbr_smask)) {
- return XFS_ERROR(-EINVAL);
- }
- iolock = XFS_IOLOCK_SHARED;
- locktype = VRWLOCK_WRITE_DIRECT;
- } else {
- iolock = XFS_IOLOCK_EXCL;
- locktype = VRWLOCK_WRITE;
- }
-
- xfs_ilock(xip, XFS_ILOCK_EXCL|iolock);
-
- isize = xip->i_d.di_size;
- limit = XFS_MAXIOFFSET(mp);
-
- if (file->f_flags & O_APPEND)
- *offset = isize;
-
-start:
- n = limit - *offset;
- if (n <= 0) {
- xfs_iunlock(xip, XFS_ILOCK_EXCL|iolock);
- return -EFBIG;
- }
-
- if (n < size)
- size = n;
-
- new_size = *offset + size;
- if (new_size > isize) {
- io->io_new_size = new_size;
- }
-
- if ((DM_EVENT_ENABLED(vp->v_vfsp, xip, DM_EVENT_WRITE) &&
- !(ioflags & IO_INVIS) && !eventsent)) {
- loff_t savedsize = *offset;
- int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
-
- xfs_iunlock(xip, XFS_ILOCK_EXCL);
- error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, vp,
- *offset, size,
- dmflags, &locktype);
- if (error) {
- xfs_iunlock(xip, iolock);
- return -error;
- }
- xfs_ilock(xip, XFS_ILOCK_EXCL);
- eventsent = 1;
-
- /*
- * The iolock was dropped and reaquired in XFS_SEND_DATA
- * so we have to recheck the size when appending.
- * We will only "goto start;" once, since having sent the
- * event prevents another call to XFS_SEND_DATA, which is
- * what allows the size to change in the first place.
- */
- if ((file->f_flags & O_APPEND) &&
- savedsize != xip->i_d.di_size) {
- *offset = isize = xip->i_d.di_size;
- goto start;
- }
- }
-
- /*
- * On Linux, generic_file_write updates the times even if
- * no data is copied in so long as the write had a size.
- *
- * We must update xfs' times since revalidate will overcopy xfs.
- */
- if (size && !(ioflags & IO_INVIS))
- xfs_ichgtime(xip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
-
- /*
- * If the offset is beyond the size of the file, we have a couple
- * of things to do. First, if there is already space allocated
- * we need to either create holes or zero the disk or ...
- *
- * If there is a page where the previous size lands, we need
- * to zero it out up to the new size.
- */
-
- if (!(ioflags & IO_ISDIRECT) && (*offset > isize && isize)) {
- error = xfs_zero_eof(BHV_TO_VNODE(bdp), io, *offset,
- isize, *offset + size);
- if (error) {
- xfs_iunlock(xip, XFS_ILOCK_EXCL|iolock);
- return(-error);
- }
- }
- xfs_iunlock(xip, XFS_ILOCK_EXCL);
-
- /*
- * If we're writing the file then make sure to clear the
- * setuid and setgid bits if the process is not being run
- * by root. This keeps people from modifying setuid and
- * setgid binaries.
- */
-
- if (((xip->i_d.di_mode & S_ISUID) ||
- ((xip->i_d.di_mode & (S_ISGID | S_IXGRP)) ==
- (S_ISGID | S_IXGRP))) &&
- !capable(CAP_FSETID)) {
- error = xfs_write_clear_setuid(xip);
- if (error) {
- xfs_iunlock(xip, iolock);
- return -error;
- }
- }
-
-retry:
- if (ioflags & IO_ISDIRECT) {
- xfs_inval_cached_pages(vp, io, *offset, 1, 1);
- xfs_rw_enter_trace(XFS_DIOWR_ENTER,
- io, iovp, segs, *offset, ioflags);
- } else {
- xfs_rw_enter_trace(XFS_WRITE_ENTER,
- io, iovp, segs, *offset, ioflags);
- }
- ret = generic_file_aio_write_nolock(iocb, iovp, segs, offset);
-
- if ((ret == -ENOSPC) &&
- DM_EVENT_ENABLED(vp->v_vfsp, xip, DM_EVENT_NOSPACE) &&
- !(ioflags & IO_INVIS)) {
-
- xfs_rwunlock(bdp, locktype);
- error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp,
- DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL,
- 0, 0, 0); /* Delay flag intentionally unused */
- if (error)
- return -error;
- xfs_rwlock(bdp, locktype);
- *offset = xip->i_d.di_size;
- goto retry;
- }
-
- if (*offset > xip->i_d.di_size) {
- xfs_ilock(xip, XFS_ILOCK_EXCL);
- if (*offset > xip->i_d.di_size) {
- struct inode *inode = LINVFS_GET_IP(vp);
-
- xip->i_d.di_size = *offset;
- i_size_write(inode, *offset);
- xip->i_update_core = 1;
- xip->i_update_size = 1;
- }
- xfs_iunlock(xip, XFS_ILOCK_EXCL);
- }
-
- if (ret <= 0) {
- xfs_rwunlock(bdp, locktype);
- return ret;
- }
-
- XFS_STATS_ADD(xs_write_bytes, ret);
-
- /* Handle various SYNC-type writes */
- if ((file->f_flags & O_SYNC) || IS_SYNC(file->f_dentry->d_inode)) {
-
- /*
- * If we're treating this as O_DSYNC and we have not updated the
- * size, force the log.
- */
-
- if (!(mp->m_flags & XFS_MOUNT_OSYNCISOSYNC)
- && !(xip->i_update_size)) {
- /*
- * If an allocation transaction occurred
- * without extending the size, then we have to force
- * the log up the proper point to ensure that the
- * allocation is permanent. We can't count on
- * the fact that buffered writes lock out direct I/O
- * writes - the direct I/O write could have extended
- * the size nontransactionally, then finished before
- * we started. xfs_write_file will think that the file
- * didn't grow but the update isn't safe unless the
- * size change is logged.
- *
- * Force the log if we've committed a transaction
- * against the inode or if someone else has and
- * the commit record hasn't gone to disk (e.g.
- * the inode is pinned). This guarantees that
- * all changes affecting the inode are permanent
- * when we return.
- */
-
- xfs_inode_log_item_t *iip;
- xfs_lsn_t lsn;
-
- iip = xip->i_itemp;
- if (iip && iip->ili_last_lsn) {
- lsn = iip->ili_last_lsn;
- xfs_log_force(mp, lsn,
- XFS_LOG_FORCE | XFS_LOG_SYNC);
- } else if (xfs_ipincount(xip) > 0) {
- xfs_log_force(mp, (xfs_lsn_t)0,
- XFS_LOG_FORCE | XFS_LOG_SYNC);
- }
-
- } else {
- xfs_trans_t *tp;
-
- /*
- * O_SYNC or O_DSYNC _with_ a size update are handled
- * the same way.
- *
- * If the write was synchronous then we need to make
- * sure that the inode modification time is permanent.
- * We'll have updated the timestamp above, so here
- * we use a synchronous transaction to log the inode.
- * It's not fast, but it's necessary.
- *
- * If this a dsync write and the size got changed
- * non-transactionally, then we need to ensure that
- * the size change gets logged in a synchronous
- * transaction.
- */
-
- tp = xfs_trans_alloc(mp, XFS_TRANS_WRITE_SYNC);
- if ((error = xfs_trans_reserve(tp, 0,
- XFS_SWRITE_LOG_RES(mp),
- 0, 0, 0))) {
- /* Transaction reserve failed */
- xfs_trans_cancel(tp, 0);
- } else {
- /* Transaction reserve successful */
- xfs_ilock(xip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, xip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, xip);
- xfs_trans_log_inode(tp, xip, XFS_ILOG_CORE);
- xfs_trans_set_sync(tp);
- error = xfs_trans_commit(tp, 0, (xfs_lsn_t)0);
- xfs_iunlock(xip, XFS_ILOCK_EXCL);
- }
- }
- } /* (ioflags & O_SYNC) */
-
- xfs_rwunlock(bdp, locktype);
- return(ret);
-}
-
-/*
- * All xfs metadata buffers except log state machine buffers
- * get this attached as their b_bdstrat callback function.
- * This is so that we can catch a buffer
- * after prematurely unpinning it to forcibly shutdown the filesystem.
- */
-int
-xfs_bdstrat_cb(struct xfs_buf *bp)
-{
- xfs_mount_t *mp;
-
- mp = XFS_BUF_FSPRIVATE3(bp, xfs_mount_t *);
- if (!XFS_FORCED_SHUTDOWN(mp)) {
- pagebuf_iorequest(bp);
- return 0;
- } else {
- xfs_buftrace("XFS__BDSTRAT IOERROR", bp);
- /*
- * Metadata write that didn't get logged but
- * written delayed anyway. These aren't associated
- * with a transaction, and can be ignored.
- */
- if (XFS_BUF_IODONE_FUNC(bp) == NULL &&
- (XFS_BUF_ISREAD(bp)) == 0)
- return (xfs_bioerror_relse(bp));
- else
- return (xfs_bioerror(bp));
- }
-}
-
-
-int
-xfs_bmap(bhv_desc_t *bdp,
- xfs_off_t offset,
- ssize_t count,
- int flags,
- xfs_iomap_t *iomapp,
- int *niomaps)
-{
- xfs_inode_t *ip = XFS_BHVTOI(bdp);
- xfs_iocore_t *io = &ip->i_iocore;
-
- ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFREG);
- ASSERT(((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) != 0) ==
- ((ip->i_iocore.io_flags & XFS_IOCORE_RT) != 0));
-
- return xfs_iomap(io, offset, count, flags, iomapp, niomaps);
-}
-
-/*
- * Wrapper around bdstrat so that we can stop data
- * from going to disk in case we are shutting down the filesystem.
- * Typically user data goes thru this path; one of the exceptions
- * is the superblock.
- */
-int
-xfsbdstrat(
- struct xfs_mount *mp,
- struct xfs_buf *bp)
-{
- ASSERT(mp);
- if (!XFS_FORCED_SHUTDOWN(mp)) {
- /* Grio redirection would go here
- * if (XFS_BUF_IS_GRIO(bp)) {
- */
-
- pagebuf_iorequest(bp);
- return 0;
- }
-
- xfs_buftrace("XFSBDSTRAT IOERROR", bp);
- return (xfs_bioerror_relse(bp));
-}
-
-/*
- * If the underlying (data/log/rt) device is readonly, there are some
- * operations that cannot proceed.
- */
-int
-xfs_dev_is_read_only(
- xfs_mount_t *mp,
- char *message)
-{
- if (xfs_readonly_buftarg(mp->m_ddev_targp) ||
- xfs_readonly_buftarg(mp->m_logdev_targp) ||
- (mp->m_rtdev_targp && xfs_readonly_buftarg(mp->m_rtdev_targp))) {
- cmn_err(CE_NOTE,
- "XFS: %s required on read-only device.", message);
- cmn_err(CE_NOTE,
- "XFS: write access unavailable, cannot proceed.");
- return EROFS;
- }
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_LRW_H__
-#define __XFS_LRW_H__
-
-struct vnode;
-struct bhv_desc;
-struct xfs_mount;
-struct xfs_iocore;
-struct xfs_inode;
-struct xfs_bmbt_irec;
-struct xfs_buf;
-struct xfs_iomap;
-
-#if defined(XFS_RW_TRACE)
-/*
- * Defines for the trace mechanisms in xfs_lrw.c.
- */
-#define XFS_RW_KTRACE_SIZE 128
-
-#define XFS_READ_ENTER 1
-#define XFS_WRITE_ENTER 2
-#define XFS_IOMAP_READ_ENTER 3
-#define XFS_IOMAP_WRITE_ENTER 4
-#define XFS_IOMAP_READ_MAP 5
-#define XFS_IOMAP_WRITE_MAP 6
-#define XFS_IOMAP_WRITE_NOSPACE 7
-#define XFS_ITRUNC_START 8
-#define XFS_ITRUNC_FINISH1 9
-#define XFS_ITRUNC_FINISH2 10
-#define XFS_CTRUNC1 11
-#define XFS_CTRUNC2 12
-#define XFS_CTRUNC3 13
-#define XFS_CTRUNC4 14
-#define XFS_CTRUNC5 15
-#define XFS_CTRUNC6 16
-#define XFS_BUNMAPI 17
-#define XFS_INVAL_CACHED 18
-#define XFS_DIORD_ENTER 19
-#define XFS_DIOWR_ENTER 20
-#define XFS_SENDFILE_ENTER 21
-#define XFS_WRITEPAGE_ENTER 22
-#define XFS_RELEASEPAGE_ENTER 23
-#define XFS_IOMAP_ALLOC_ENTER 24
-#define XFS_IOMAP_ALLOC_MAP 25
-#define XFS_IOMAP_UNWRITTEN 26
-extern void xfs_rw_enter_trace(int, struct xfs_iocore *,
- const struct iovec *, size_t, loff_t, int);
-extern void xfs_inval_cached_trace(struct xfs_iocore *,
- xfs_off_t, xfs_off_t, xfs_off_t, xfs_off_t);
-#else
-#define xfs_rw_enter_trace(tag, io, iovec, segs, offset, ioflags)
-#define xfs_inval_cached_trace(io, offset, len, first, last)
-#endif
-
-/*
- * Maximum count of bmaps used by read and write paths.
- */
-#define XFS_MAX_RW_NBMAPS 4
-
-extern int xfs_bmap(struct bhv_desc *, xfs_off_t, ssize_t, int,
- struct xfs_iomap *, int *);
-extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
-extern int xfs_bdstrat_cb(struct xfs_buf *);
-
-extern int xfs_zero_eof(struct vnode *, struct xfs_iocore *, xfs_off_t,
- xfs_fsize_t, xfs_fsize_t);
-extern void xfs_inval_cached_pages(struct vnode *, struct xfs_iocore *,
- xfs_off_t, int, int);
-extern ssize_t xfs_read(struct bhv_desc *, struct kiocb *,
- const struct iovec *, unsigned int,
- loff_t *, int, struct cred *);
-extern ssize_t xfs_write(struct bhv_desc *, struct kiocb *,
- const struct iovec *, unsigned int,
- loff_t *, int, struct cred *);
-extern ssize_t xfs_sendfile(struct bhv_desc *, struct file *,
- loff_t *, int, size_t, read_actor_t,
- void *, struct cred *);
-
-extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
-
-#define XFS_FSB_TO_DB_IO(io,fsb) \
- (((io)->io_flags & XFS_IOCORE_RT) ? \
- XFS_FSB_TO_BB((io)->io_mount, (fsb)) : \
- XFS_FSB_TO_DADDR((io)->io_mount, (fsb)))
-
-#endif /* __XFS_LRW_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-#include <linux/proc_fs.h>
-
-DEFINE_PER_CPU(struct xfsstats, xfsstats);
-
-STATIC int
-xfs_read_xfsstats(
- char *buffer,
- char **start,
- off_t offset,
- int count,
- int *eof,
- void *data)
-{
- int c, i, j, len, val;
- __uint64_t xs_xstrat_bytes = 0;
- __uint64_t xs_write_bytes = 0;
- __uint64_t xs_read_bytes = 0;
-
- static struct xstats_entry {
- char *desc;
- int endpoint;
- } xstats[] = {
- { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC },
- { "abt", XFSSTAT_END_ALLOC_BTREE },
- { "blk_map", XFSSTAT_END_BLOCK_MAPPING },
- { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE },
- { "dir", XFSSTAT_END_DIRECTORY_OPS },
- { "trans", XFSSTAT_END_TRANSACTIONS },
- { "ig", XFSSTAT_END_INODE_OPS },
- { "log", XFSSTAT_END_LOG_OPS },
- { "push_ail", XFSSTAT_END_TAIL_PUSHING },
- { "xstrat", XFSSTAT_END_WRITE_CONVERT },
- { "rw", XFSSTAT_END_READ_WRITE_OPS },
- { "attr", XFSSTAT_END_ATTRIBUTE_OPS },
- { "icluster", XFSSTAT_END_INODE_CLUSTER },
- { "vnodes", XFSSTAT_END_VNODE_OPS },
- { "buf", XFSSTAT_END_BUF },
- };
-
- /* Loop over all stats groups */
- for (i=j=len = 0; i < sizeof(xstats)/sizeof(struct xstats_entry); i++) {
- len += sprintf(buffer + len, xstats[i].desc);
- /* inner loop does each group */
- while (j < xstats[i].endpoint) {
- val = 0;
- /* sum over all cpus */
- for (c = 0; c < NR_CPUS; c++) {
- if (!cpu_possible(c)) continue;
- val += *(((__u32*)&per_cpu(xfsstats, c) + j));
- }
- len += sprintf(buffer + len, " %u", val);
- j++;
- }
- buffer[len++] = '\n';
- }
- /* extra precision counters */
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i)) continue;
- xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes;
- xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes;
- xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
- }
-
- len += sprintf(buffer + len, "xpc %Lu %Lu %Lu\n",
- xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
- len += sprintf(buffer + len, "debug %u\n",
-#if defined(XFSDEBUG)
- 1);
-#else
- 0);
-#endif
-
- if (offset >= len) {
- *start = buffer;
- *eof = 1;
- return 0;
- }
- *start = buffer + offset;
- if ((len -= offset) > count)
- return count;
- *eof = 1;
-
- return len;
-}
-
-void
-xfs_init_procfs(void)
-{
- if (!proc_mkdir("fs/xfs", 0))
- return;
- create_proc_read_entry("fs/xfs/stat", 0, 0, xfs_read_xfsstats, NULL);
-}
-
-void
-xfs_cleanup_procfs(void)
-{
- remove_proc_entry("fs/xfs/stat", NULL);
- remove_proc_entry("fs/xfs", NULL);
-}
+++ /dev/null
-/*
- * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_STATS_H__
-#define __XFS_STATS_H__
-
-
-#if defined(CONFIG_PROC_FS) && !defined(XFS_STATS_OFF)
-
-#include <linux/percpu.h>
-
-/*
- * XFS global statistics
- */
-struct xfsstats {
-# define XFSSTAT_END_EXTENT_ALLOC 4
- __uint32_t xs_allocx;
- __uint32_t xs_allocb;
- __uint32_t xs_freex;
- __uint32_t xs_freeb;
-# define XFSSTAT_END_ALLOC_BTREE (XFSSTAT_END_EXTENT_ALLOC+4)
- __uint32_t xs_abt_lookup;
- __uint32_t xs_abt_compare;
- __uint32_t xs_abt_insrec;
- __uint32_t xs_abt_delrec;
-# define XFSSTAT_END_BLOCK_MAPPING (XFSSTAT_END_ALLOC_BTREE+7)
- __uint32_t xs_blk_mapr;
- __uint32_t xs_blk_mapw;
- __uint32_t xs_blk_unmap;
- __uint32_t xs_add_exlist;
- __uint32_t xs_del_exlist;
- __uint32_t xs_look_exlist;
- __uint32_t xs_cmp_exlist;
-# define XFSSTAT_END_BLOCK_MAP_BTREE (XFSSTAT_END_BLOCK_MAPPING+4)
- __uint32_t xs_bmbt_lookup;
- __uint32_t xs_bmbt_compare;
- __uint32_t xs_bmbt_insrec;
- __uint32_t xs_bmbt_delrec;
-# define XFSSTAT_END_DIRECTORY_OPS (XFSSTAT_END_BLOCK_MAP_BTREE+4)
- __uint32_t xs_dir_lookup;
- __uint32_t xs_dir_create;
- __uint32_t xs_dir_remove;
- __uint32_t xs_dir_getdents;
-# define XFSSTAT_END_TRANSACTIONS (XFSSTAT_END_DIRECTORY_OPS+3)
- __uint32_t xs_trans_sync;
- __uint32_t xs_trans_async;
- __uint32_t xs_trans_empty;
-# define XFSSTAT_END_INODE_OPS (XFSSTAT_END_TRANSACTIONS+7)
- __uint32_t xs_ig_attempts;
- __uint32_t xs_ig_found;
- __uint32_t xs_ig_frecycle;
- __uint32_t xs_ig_missed;
- __uint32_t xs_ig_dup;
- __uint32_t xs_ig_reclaims;
- __uint32_t xs_ig_attrchg;
-# define XFSSTAT_END_LOG_OPS (XFSSTAT_END_INODE_OPS+5)
- __uint32_t xs_log_writes;
- __uint32_t xs_log_blocks;
- __uint32_t xs_log_noiclogs;
- __uint32_t xs_log_force;
- __uint32_t xs_log_force_sleep;
-# define XFSSTAT_END_TAIL_PUSHING (XFSSTAT_END_LOG_OPS+10)
- __uint32_t xs_try_logspace;
- __uint32_t xs_sleep_logspace;
- __uint32_t xs_push_ail;
- __uint32_t xs_push_ail_success;
- __uint32_t xs_push_ail_pushbuf;
- __uint32_t xs_push_ail_pinned;
- __uint32_t xs_push_ail_locked;
- __uint32_t xs_push_ail_flushing;
- __uint32_t xs_push_ail_restarts;
- __uint32_t xs_push_ail_flush;
-# define XFSSTAT_END_WRITE_CONVERT (XFSSTAT_END_TAIL_PUSHING+2)
- __uint32_t xs_xstrat_quick;
- __uint32_t xs_xstrat_split;
-# define XFSSTAT_END_READ_WRITE_OPS (XFSSTAT_END_WRITE_CONVERT+2)
- __uint32_t xs_write_calls;
- __uint32_t xs_read_calls;
-# define XFSSTAT_END_ATTRIBUTE_OPS (XFSSTAT_END_READ_WRITE_OPS+4)
- __uint32_t xs_attr_get;
- __uint32_t xs_attr_set;
- __uint32_t xs_attr_remove;
- __uint32_t xs_attr_list;
-# define XFSSTAT_END_INODE_CLUSTER (XFSSTAT_END_ATTRIBUTE_OPS+3)
- __uint32_t xs_iflush_count;
- __uint32_t xs_icluster_flushcnt;
- __uint32_t xs_icluster_flushinode;
-# define XFSSTAT_END_VNODE_OPS (XFSSTAT_END_INODE_CLUSTER+8)
- __uint32_t vn_active; /* # vnodes not on free lists */
- __uint32_t vn_alloc; /* # times vn_alloc called */
- __uint32_t vn_get; /* # times vn_get called */
- __uint32_t vn_hold; /* # times vn_hold called */
- __uint32_t vn_rele; /* # times vn_rele called */
- __uint32_t vn_reclaim; /* # times vn_reclaim called */
- __uint32_t vn_remove; /* # times vn_remove called */
- __uint32_t vn_free; /* # times vn_free called */
-#define XFSSTAT_END_BUF (XFSSTAT_END_VNODE_OPS+9)
- __uint32_t pb_get;
- __uint32_t pb_create;
- __uint32_t pb_get_locked;
- __uint32_t pb_get_locked_waited;
- __uint32_t pb_busy_locked;
- __uint32_t pb_miss_locked;
- __uint32_t pb_page_retries;
- __uint32_t pb_page_found;
- __uint32_t pb_get_read;
-/* Extra precision counters */
- __uint64_t xs_xstrat_bytes;
- __uint64_t xs_write_bytes;
- __uint64_t xs_read_bytes;
-};
-
-DECLARE_PER_CPU(struct xfsstats, xfsstats);
-
-/* We don't disable preempt, not too worried about poking the
- * wrong cpu's stat for now */
-#define XFS_STATS_INC(count) (__get_cpu_var(xfsstats).count++)
-#define XFS_STATS_DEC(count) (__get_cpu_var(xfsstats).count--)
-#define XFS_STATS_ADD(count, inc) (__get_cpu_var(xfsstats).count += (inc))
-
-extern void xfs_init_procfs(void);
-extern void xfs_cleanup_procfs(void);
-
-
-#else /* !CONFIG_PROC_FS */
-
-# define XFS_STATS_INC(count)
-# define XFS_STATS_DEC(count)
-# define XFS_STATS_ADD(count, inc)
-
-static __inline void xfs_init_procfs(void) { };
-static __inline void xfs_cleanup_procfs(void) { };
-
-#endif /* !CONFIG_PROC_FS */
-
-#endif /* __XFS_STATS_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-
-#include "xfs_inum.h"
-#include "xfs_log.h"
-#include "xfs_clnt.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_dir.h"
-#include "xfs_dir2.h"
-#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
-#include "xfs_quota.h"
-#include "xfs_mount.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir_sf.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
-#include "xfs_bmap.h"
-#include "xfs_bit.h"
-#include "xfs_rtalloc.h"
-#include "xfs_error.h"
-#include "xfs_itable.h"
-#include "xfs_rw.h"
-#include "xfs_acl.h"
-#include "xfs_cap.h"
-#include "xfs_mac.h"
-#include "xfs_attr.h"
-#include "xfs_buf_item.h"
-#include "xfs_utils.h"
-#include "xfs_version.h"
-
-#include <linux/namei.h>
-#include <linux/init.h>
-#include <linux/mount.h>
-#include <linux/suspend.h>
-
-STATIC struct quotactl_ops linvfs_qops;
-STATIC struct super_operations linvfs_sops;
-STATIC struct export_operations linvfs_export_ops;
-STATIC kmem_cache_t * linvfs_inode_cachep;
-
-STATIC struct xfs_mount_args *
-xfs_args_allocate(
- struct super_block *sb)
-{
- struct xfs_mount_args *args;
-
- args = kmem_zalloc(sizeof(struct xfs_mount_args), KM_SLEEP);
- args->logbufs = args->logbufsize = -1;
- strncpy(args->fsname, sb->s_id, MAXNAMELEN);
-
- /* Copy the already-parsed mount(2) flags we're interested in */
- if (sb->s_flags & MS_NOATIME)
- args->flags |= XFSMNT_NOATIME;
-
- /* Default to 32 bit inodes on Linux all the time */
- args->flags |= XFSMNT_32BITINODES;
-
- return args;
-}
-
-__uint64_t
-xfs_max_file_offset(
- unsigned int blockshift)
-{
- unsigned int pagefactor = 1;
- unsigned int bitshift = BITS_PER_LONG - 1;
-
- /* Figure out maximum filesize, on Linux this can depend on
- * the filesystem blocksize (on 32 bit platforms).
- * __block_prepare_write does this in an [unsigned] long...
- * page->index << (PAGE_CACHE_SHIFT - bbits)
- * So, for page sized blocks (4K on 32 bit platforms),
- * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is
- * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
- * but for smaller blocksizes it is less (bbits = log2 bsize).
- * Note1: get_block_t takes a long (implicit cast from above)
- * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch
- * can optionally convert the [unsigned] long from above into
- * an [unsigned] long long.
- */
-
-#if BITS_PER_LONG == 32
-# if defined(CONFIG_LBD)
- ASSERT(sizeof(sector_t) == 8);
- pagefactor = PAGE_CACHE_SIZE;
- bitshift = BITS_PER_LONG;
-# else
- pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift);
-# endif
-#endif
-
- return (((__uint64_t)pagefactor) << bitshift) - 1;
-}
-
-STATIC __inline__ void
-xfs_set_inodeops(
- struct inode *inode)
-{
- vnode_t *vp = LINVFS_GET_VP(inode);
-
- if (vp->v_type == VNON) {
- make_bad_inode(inode);
- } else if (S_ISREG(inode->i_mode)) {
- inode->i_op = &linvfs_file_inode_operations;
- inode->i_fop = &linvfs_file_operations;
- inode->i_mapping->a_ops = &linvfs_aops;
- } else if (S_ISDIR(inode->i_mode)) {
- inode->i_op = &linvfs_dir_inode_operations;
- inode->i_fop = &linvfs_dir_operations;
- } else if (S_ISLNK(inode->i_mode)) {
- inode->i_op = &linvfs_symlink_inode_operations;
- if (inode->i_blocks)
- inode->i_mapping->a_ops = &linvfs_aops;
- } else {
- inode->i_op = &linvfs_file_inode_operations;
- init_special_inode(inode, inode->i_mode, inode->i_rdev);
- }
-}
-
-STATIC __inline__ void
-xfs_revalidate_inode(
- xfs_mount_t *mp,
- vnode_t *vp,
- xfs_inode_t *ip)
-{
- struct inode *inode = LINVFS_GET_IP(vp);
-
- inode->i_mode = (ip->i_d.di_mode & MODEMASK) | VTTOIF(vp->v_type);
- inode->i_nlink = ip->i_d.di_nlink;
- inode->i_uid = ip->i_d.di_uid;
- inode->i_gid = ip->i_d.di_gid;
- if (((1 << vp->v_type) & ((1<<VBLK) | (1<<VCHR))) == 0) {
- inode->i_rdev = 0;
- } else {
- xfs_dev_t dev = ip->i_df.if_u2.if_rdev;
- inode->i_rdev = MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev));
- }
- inode->i_blksize = PAGE_CACHE_SIZE;
- inode->i_generation = ip->i_d.di_gen;
- i_size_write(inode, ip->i_d.di_size);
- inode->i_blocks =
- XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
- inode->i_atime.tv_sec = ip->i_d.di_atime.t_sec;
- inode->i_atime.tv_nsec = ip->i_d.di_atime.t_nsec;
- inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
- inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
- inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
- inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
- if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE)
- inode->i_flags |= S_IMMUTABLE;
- else
- inode->i_flags &= ~S_IMMUTABLE;
- if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
- inode->i_flags |= S_APPEND;
- else
- inode->i_flags &= ~S_APPEND;
- if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
- inode->i_flags |= S_SYNC;
- else
- inode->i_flags &= ~S_SYNC;
- if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
- inode->i_flags |= S_NOATIME;
- else
- inode->i_flags &= ~S_NOATIME;
- vp->v_flag &= ~VMODIFIED;
-}
-
-void
-xfs_initialize_vnode(
- bhv_desc_t *bdp,
- vnode_t *vp,
- bhv_desc_t *inode_bhv,
- int unlock)
-{
- xfs_inode_t *ip = XFS_BHVTOI(inode_bhv);
- struct inode *inode = LINVFS_GET_IP(vp);
-
- if (!inode_bhv->bd_vobj) {
- vp->v_vfsp = bhvtovfs(bdp);
- bhv_desc_init(inode_bhv, ip, vp, &xfs_vnodeops);
- bhv_insert(VN_BHV_HEAD(vp), inode_bhv);
- }
-
- vp->v_type = IFTOVT(ip->i_d.di_mode);
-
- /* Have we been called during the new inode create process,
- * in which case we are too early to fill in the Linux inode.
- */
- if (vp->v_type == VNON)
- return;
-
- xfs_revalidate_inode(XFS_BHVTOM(bdp), vp, ip);
-
- /* For new inodes we need to set the ops vectors,
- * and unlock the inode.
- */
- if (unlock && (inode->i_state & I_NEW)) {
- xfs_set_inodeops(inode);
- unlock_new_inode(inode);
- }
-}
-
-void
-xfs_flush_inode(
- xfs_inode_t *ip)
-{
- struct inode *inode = LINVFS_GET_IP(XFS_ITOV(ip));
-
- filemap_flush(inode->i_mapping);
-}
-
-void
-xfs_flush_device(
- xfs_inode_t *ip)
-{
- sync_blockdev(XFS_ITOV(ip)->v_vfsp->vfs_super->s_bdev);
- xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
-}
-
-int
-xfs_blkdev_get(
- xfs_mount_t *mp,
- const char *name,
- struct block_device **bdevp)
-{
- int error = 0;
-
- *bdevp = open_bdev_excl(name, 0, mp);
- if (IS_ERR(*bdevp)) {
- error = PTR_ERR(*bdevp);
- printk("XFS: Invalid device [%s], error=%d\n", name, error);
- }
-
- return -error;
-}
-
-void
-xfs_blkdev_put(
- struct block_device *bdev)
-{
- if (bdev)
- close_bdev_excl(bdev);
-}
-
-
-STATIC struct inode *
-linvfs_alloc_inode(
- struct super_block *sb)
-{
- vnode_t *vp;
-
- vp = (vnode_t *)kmem_cache_alloc(linvfs_inode_cachep,
- kmem_flags_convert(KM_SLEEP));
- if (!vp)
- return NULL;
- return LINVFS_GET_IP(vp);
-}
-
-STATIC void
-linvfs_destroy_inode(
- struct inode *inode)
-{
- kmem_cache_free(linvfs_inode_cachep, LINVFS_GET_VP(inode));
-}
-
-STATIC void
-init_once(
- void *data,
- kmem_cache_t *cachep,
- unsigned long flags)
-{
- vnode_t *vp = (vnode_t *)data;
-
- if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
- SLAB_CTOR_CONSTRUCTOR)
- inode_init_once(LINVFS_GET_IP(vp));
-}
-
-STATIC int
-init_inodecache( void )
-{
- linvfs_inode_cachep = kmem_cache_create("linvfs_icache",
- sizeof(vnode_t), 0,
- SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT,
- init_once, NULL);
-
- if (linvfs_inode_cachep == NULL)
- return -ENOMEM;
- return 0;
-}
-
-STATIC void
-destroy_inodecache( void )
-{
- if (kmem_cache_destroy(linvfs_inode_cachep))
- printk(KERN_WARNING "%s: cache still in use!\n", __FUNCTION__);
-}
-
-/*
- * Attempt to flush the inode, this will actually fail
- * if the inode is pinned, but we dirty the inode again
- * at the point when it is unpinned after a log write,
- * since this is when the inode itself becomes flushable.
- */
-STATIC void
-linvfs_write_inode(
- struct inode *inode,
- int sync)
-{
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error, flags = FLUSH_INODE;
-
- if (vp) {
- vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
- if (sync)
- flags |= FLUSH_SYNC;
- VOP_IFLUSH(vp, flags, error);
- }
-}
-
-STATIC void
-linvfs_clear_inode(
- struct inode *inode)
-{
- vnode_t *vp = LINVFS_GET_VP(inode);
-
- if (vp) {
- vn_rele(vp);
- vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
- /*
- * Do all our cleanup, and remove this vnode.
- */
- vn_remove(vp);
- }
-}
-
-
-#define SYNCD_FLAGS (SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR)
-
-STATIC int
-xfssyncd(
- void *arg)
-{
- vfs_t *vfsp = (vfs_t *) arg;
- int error;
-
- daemonize("xfssyncd");
-
- vfsp->vfs_sync_task = current;
- wmb();
- wake_up(&vfsp->vfs_wait_sync_task);
-
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(xfs_syncd_interval);
- /* swsusp */
- if (current->flags & PF_FREEZE)
- refrigerator(PF_FREEZE);
- if (vfsp->vfs_flag & VFS_UMOUNT)
- break;
- if (vfsp->vfs_flag & VFS_RDONLY)
- continue;
- VFS_SYNC(vfsp, SYNCD_FLAGS, NULL, error);
- }
-
- vfsp->vfs_sync_task = NULL;
- wmb();
- wake_up(&vfsp->vfs_wait_sync_task);
-
- return 0;
-}
-
-STATIC int
-linvfs_start_syncd(
- vfs_t *vfsp)
-{
- int pid;
-
- pid = kernel_thread(xfssyncd, (void *) vfsp,
- CLONE_VM | CLONE_FS | CLONE_FILES);
- if (pid < 0)
- return -pid;
- wait_event(vfsp->vfs_wait_sync_task, vfsp->vfs_sync_task);
- return 0;
-}
-
-STATIC void
-linvfs_stop_syncd(
- vfs_t *vfsp)
-{
- vfsp->vfs_flag |= VFS_UMOUNT;
- wmb();
-
- wake_up_process(vfsp->vfs_sync_task);
- wait_event(vfsp->vfs_wait_sync_task, !vfsp->vfs_sync_task);
-}
-
-STATIC void
-linvfs_put_super(
- struct super_block *sb)
-{
- vfs_t *vfsp = LINVFS_GET_VFS(sb);
- int error;
-
- linvfs_stop_syncd(vfsp);
- VFS_SYNC(vfsp, SYNC_ATTR|SYNC_DELWRI, NULL, error);
- if (!error)
- VFS_UNMOUNT(vfsp, 0, NULL, error);
- if (error) {
- printk("XFS unmount got error %d\n", error);
- printk("%s: vfsp/0x%p left dangling!\n", __FUNCTION__, vfsp);
- return;
- }
-
- vfs_deallocate(vfsp);
-}
-
-STATIC void
-linvfs_write_super(
- struct super_block *sb)
-{
- vfs_t *vfsp = LINVFS_GET_VFS(sb);
- int error;
-
- if (sb->s_flags & MS_RDONLY) {
- sb->s_dirt = 0; /* paranoia */
- return;
- }
- /* Push the log and superblock a little */
- VFS_SYNC(vfsp, SYNC_FSDATA, NULL, error);
- sb->s_dirt = 0;
-}
-
-STATIC int
-linvfs_sync_super(
- struct super_block *sb,
- int wait)
-{
- vfs_t *vfsp = LINVFS_GET_VFS(sb);
- int error;
- int flags = SYNC_FSDATA;
-
- if (wait)
- flags |= SYNC_WAIT;
-
- VFS_SYNC(vfsp, flags, NULL, error);
- sb->s_dirt = 0;
-
- return -error;
-}
-
-STATIC int
-linvfs_statfs(
- struct super_block *sb,
- struct kstatfs *statp)
-{
- vfs_t *vfsp = LINVFS_GET_VFS(sb);
- int error;
-
- VFS_STATVFS(vfsp, statp, NULL, error);
- return -error;
-}
-
-STATIC int
-linvfs_remount(
- struct super_block *sb,
- int *flags,
- char *options)
-{
- vfs_t *vfsp = LINVFS_GET_VFS(sb);
- struct xfs_mount_args *args = xfs_args_allocate(sb);
- int error;
-
- VFS_PARSEARGS(vfsp, options, args, 1, error);
- if (!error)
- VFS_MNTUPDATE(vfsp, flags, args, error);
- kmem_free(args, sizeof(*args));
- return -error;
-}
-
-STATIC void
-linvfs_freeze_fs(
- struct super_block *sb)
-{
- VFS_FREEZE(LINVFS_GET_VFS(sb));
-}
-
-STATIC struct dentry *
-linvfs_get_parent(
- struct dentry *child)
-{
- int error;
- vnode_t *vp, *cvp;
- struct dentry *parent;
- struct inode *ip = NULL;
- struct dentry dotdot;
-
- dotdot.d_name.name = "..";
- dotdot.d_name.len = 2;
- dotdot.d_inode = 0;
-
- cvp = NULL;
- vp = LINVFS_GET_VP(child->d_inode);
- VOP_LOOKUP(vp, &dotdot, &cvp, 0, NULL, NULL, error);
-
- if (!error) {
- ASSERT(cvp);
- ip = LINVFS_GET_IP(cvp);
- if (!ip) {
- VN_RELE(cvp);
- return ERR_PTR(-EACCES);
- }
- }
- if (error)
- return ERR_PTR(-error);
- parent = d_alloc_anon(ip);
- if (!parent) {
- VN_RELE(cvp);
- parent = ERR_PTR(-ENOMEM);
- }
- return parent;
-}
-
-STATIC struct dentry *
-linvfs_get_dentry(
- struct super_block *sb,
- void *data)
-{
- vnode_t *vp;
- struct inode *inode;
- struct dentry *result;
- xfs_fid2_t xfid;
- vfs_t *vfsp = LINVFS_GET_VFS(sb);
- int error;
-
- xfid.fid_len = sizeof(xfs_fid2_t) - sizeof(xfid.fid_len);
- xfid.fid_pad = 0;
- xfid.fid_gen = ((__u32 *)data)[1];
- xfid.fid_ino = ((__u32 *)data)[0];
-
- VFS_VGET(vfsp, &vp, (fid_t *)&xfid, error);
- if (error || vp == NULL)
- return ERR_PTR(-ESTALE) ;
-
- inode = LINVFS_GET_IP(vp);
- result = d_alloc_anon(inode);
- if (!result) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- return result;
-}
-
-STATIC int
-linvfs_show_options(
- struct seq_file *m,
- struct vfsmount *mnt)
-{
- struct vfs *vfsp = LINVFS_GET_VFS(mnt->mnt_sb);
- int error;
-
- VFS_SHOWARGS(vfsp, m, error);
- return error;
-}
-
-STATIC int
-linvfs_getxstate(
- struct super_block *sb,
- struct fs_quota_stat *fqs)
-{
- struct vfs *vfsp = LINVFS_GET_VFS(sb);
- int error;
-
- VFS_QUOTACTL(vfsp, Q_XGETQSTAT, 0, (caddr_t)fqs, error);
- return -error;
-}
-
-STATIC int
-linvfs_setxstate(
- struct super_block *sb,
- unsigned int flags,
- int op)
-{
- struct vfs *vfsp = LINVFS_GET_VFS(sb);
- int error;
-
- VFS_QUOTACTL(vfsp, op, 0, (caddr_t)&flags, error);
- return -error;
-}
-
-STATIC int
-linvfs_getxquota(
- struct super_block *sb,
- int type,
- qid_t id,
- struct fs_disk_quota *fdq)
-{
- struct vfs *vfsp = LINVFS_GET_VFS(sb);
- int error, getmode;
-
- getmode = (type == GRPQUOTA) ? Q_XGETGQUOTA : Q_XGETQUOTA;
- VFS_QUOTACTL(vfsp, getmode, id, (caddr_t)fdq, error);
- return -error;
-}
-
-STATIC int
-linvfs_setxquota(
- struct super_block *sb,
- int type,
- qid_t id,
- struct fs_disk_quota *fdq)
-{
- struct vfs *vfsp = LINVFS_GET_VFS(sb);
- int error, setmode;
-
- setmode = (type == GRPQUOTA) ? Q_XSETGQLIM : Q_XSETQLIM;
- VFS_QUOTACTL(vfsp, setmode, id, (caddr_t)fdq, error);
- return -error;
-}
-
-STATIC int
-linvfs_fill_super(
- struct super_block *sb,
- void *data,
- int silent)
-{
- vnode_t *rootvp;
- struct vfs *vfsp = vfs_allocate();
- struct xfs_mount_args *args = xfs_args_allocate(sb);
- struct kstatfs statvfs;
- int error, error2;
-
- vfsp->vfs_super = sb;
- LINVFS_SET_VFS(sb, vfsp);
- if (sb->s_flags & MS_RDONLY)
- vfsp->vfs_flag |= VFS_RDONLY;
- bhv_insert_all_vfsops(vfsp);
-
- VFS_PARSEARGS(vfsp, (char *)data, args, 0, error);
- if (error) {
- bhv_remove_all_vfsops(vfsp, 1);
- goto fail_vfsop;
- }
-
- sb_min_blocksize(sb, BBSIZE);
- sb->s_export_op = &linvfs_export_ops;
- sb->s_qcop = &linvfs_qops;
- sb->s_op = &linvfs_sops;
-
- VFS_MOUNT(vfsp, args, NULL, error);
- if (error) {
- bhv_remove_all_vfsops(vfsp, 1);
- goto fail_vfsop;
- }
-
- VFS_STATVFS(vfsp, &statvfs, NULL, error);
- if (error)
- goto fail_unmount;
-
- sb->s_dirt = 1;
- sb->s_magic = statvfs.f_type;
- sb->s_blocksize = statvfs.f_bsize;
- sb->s_blocksize_bits = ffs(statvfs.f_bsize) - 1;
- sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);
- set_posix_acl_flag(sb);
-
- VFS_ROOT(vfsp, &rootvp, error);
- if (error)
- goto fail_unmount;
-
- sb->s_root = d_alloc_root(LINVFS_GET_IP(rootvp));
- if (!sb->s_root) {
- error = ENOMEM;
- goto fail_vnrele;
- }
- if (is_bad_inode(sb->s_root->d_inode)) {
- error = EINVAL;
- goto fail_vnrele;
- }
- if ((error = linvfs_start_syncd(vfsp)))
- goto fail_vnrele;
- vn_trace_exit(rootvp, __FUNCTION__, (inst_t *)__return_address);
-
- kmem_free(args, sizeof(*args));
- return 0;
-
-fail_vnrele:
- if (sb->s_root) {
- dput(sb->s_root);
- sb->s_root = NULL;
- } else {
- VN_RELE(rootvp);
- }
-
-fail_unmount:
- VFS_UNMOUNT(vfsp, 0, NULL, error2);
-
-fail_vfsop:
- vfs_deallocate(vfsp);
- kmem_free(args, sizeof(*args));
- return -error;
-}
-
-STATIC struct super_block *
-linvfs_get_sb(
- struct file_system_type *fs_type,
- int flags,
- const char *dev_name,
- void *data)
-{
- return get_sb_bdev(fs_type, flags, dev_name, data, linvfs_fill_super);
-}
-
-
-STATIC struct export_operations linvfs_export_ops = {
- .get_parent = linvfs_get_parent,
- .get_dentry = linvfs_get_dentry,
-};
-
-STATIC struct super_operations linvfs_sops = {
- .alloc_inode = linvfs_alloc_inode,
- .destroy_inode = linvfs_destroy_inode,
- .write_inode = linvfs_write_inode,
- .clear_inode = linvfs_clear_inode,
- .put_super = linvfs_put_super,
- .write_super = linvfs_write_super,
- .sync_fs = linvfs_sync_super,
- .write_super_lockfs = linvfs_freeze_fs,
- .statfs = linvfs_statfs,
- .remount_fs = linvfs_remount,
- .show_options = linvfs_show_options,
-};
-
-STATIC struct quotactl_ops linvfs_qops = {
- .get_xstate = linvfs_getxstate,
- .set_xstate = linvfs_setxstate,
- .get_xquota = linvfs_getxquota,
- .set_xquota = linvfs_setxquota,
-};
-
-STATIC struct file_system_type xfs_fs_type = {
- .owner = THIS_MODULE,
- .name = "xfs",
- .get_sb = linvfs_get_sb,
- .kill_sb = kill_block_super,
- .fs_flags = FS_REQUIRES_DEV,
-};
-
-
-STATIC int __init
-init_xfs_fs( void )
-{
- int error;
- struct sysinfo si;
- static char message[] __initdata = KERN_INFO \
- XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n";
-
- printk(message);
-
- si_meminfo(&si);
- xfs_physmem = si.totalram;
-
- ktrace_init(64);
-
- error = init_inodecache();
- if (error < 0)
- goto undo_inodecache;
-
- error = pagebuf_init();
- if (error < 0)
- goto undo_pagebuf;
-
- vn_init();
- xfs_init();
- uuid_init();
- vfs_initdmapi();
- vfs_initquota();
-
- error = register_filesystem(&xfs_fs_type);
- if (error)
- goto undo_register;
- return 0;
-
-undo_register:
- pagebuf_terminate();
-
-undo_pagebuf:
- destroy_inodecache();
-
-undo_inodecache:
- return error;
-}
-
-STATIC void __exit
-exit_xfs_fs( void )
-{
- vfs_exitquota();
- vfs_exitdmapi();
- unregister_filesystem(&xfs_fs_type);
- xfs_cleanup();
- pagebuf_terminate();
- destroy_inodecache();
- ktrace_uninit();
-}
-
-module_init(init_xfs_fs);
-module_exit(exit_xfs_fs);
-
-MODULE_AUTHOR("Silicon Graphics, Inc.");
-MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_SUPER_H__
-#define __XFS_SUPER_H__
-
-#ifdef CONFIG_XFS_DMAPI
-# define vfs_insertdmapi(vfs) vfs_insertops(vfsp, &xfs_dmops)
-# define vfs_initdmapi() dmapi_init()
-# define vfs_exitdmapi() dmapi_uninit()
-#else
-# define vfs_insertdmapi(vfs) do { } while (0)
-# define vfs_initdmapi() do { } while (0)
-# define vfs_exitdmapi() do { } while (0)
-#endif
-
-#ifdef CONFIG_XFS_QUOTA
-# define vfs_insertquota(vfs) vfs_insertops(vfsp, &xfs_qmops)
-extern void xfs_qm_init(void);
-extern void xfs_qm_exit(void);
-# define vfs_initquota() xfs_qm_init()
-# define vfs_exitquota() xfs_qm_exit()
-#else
-# define vfs_insertquota(vfs) do { } while (0)
-# define vfs_initquota() do { } while (0)
-# define vfs_exitquota() do { } while (0)
-#endif
-
-#ifdef CONFIG_XFS_POSIX_ACL
-# define XFS_ACL_STRING "ACLs, "
-# define set_posix_acl_flag(sb) ((sb)->s_flags |= MS_POSIXACL)
-#else
-# define XFS_ACL_STRING
-# define set_posix_acl_flag(sb) do { } while (0)
-#endif
-
-#ifdef CONFIG_XFS_SECURITY
-# define XFS_SECURITY_STRING "security attributes, "
-# define ENOSECURITY 0
-#else
-# define XFS_SECURITY_STRING
-# define ENOSECURITY EOPNOTSUPP
-#endif
-
-#ifdef CONFIG_XFS_RT
-# define XFS_REALTIME_STRING "realtime, "
-#else
-# define XFS_REALTIME_STRING
-#endif
-
-#if XFS_BIG_BLKNOS
-# if XFS_BIG_INUMS
-# define XFS_BIGFS_STRING "large block/inode numbers, "
-# else
-# define XFS_BIGFS_STRING "large block numbers, "
-# endif
-#else
-# define XFS_BIGFS_STRING
-#endif
-
-#ifdef CONFIG_XFS_TRACE
-# define XFS_TRACE_STRING "tracing, "
-#else
-# define XFS_TRACE_STRING
-#endif
-
-#ifdef XFSDEBUG
-# define XFS_DBG_STRING "debug"
-#else
-# define XFS_DBG_STRING "no debug"
-#endif
-
-#define XFS_BUILD_OPTIONS XFS_ACL_STRING \
- XFS_SECURITY_STRING \
- XFS_REALTIME_STRING \
- XFS_BIGFS_STRING \
- XFS_TRACE_STRING \
- XFS_DBG_STRING /* DBG must be last */
-
-#define LINVFS_GET_VFS(s) \
- (vfs_t *)((s)->s_fs_info)
-#define LINVFS_SET_VFS(s, vfsp) \
- ((s)->s_fs_info = vfsp)
-
-struct xfs_inode;
-struct xfs_mount;
-struct xfs_buftarg;
-struct block_device;
-
-extern __uint64_t xfs_max_file_offset(unsigned int);
-
-extern void xfs_initialize_vnode(bhv_desc_t *, vnode_t *, bhv_desc_t *, int);
-
-extern void xfs_flush_inode(struct xfs_inode *);
-extern void xfs_flush_device(struct xfs_inode *);
-
-extern int xfs_blkdev_get(struct xfs_mount *, const char *,
- struct block_device **);
-extern void xfs_blkdev_put(struct block_device *);
-
-#endif /* __XFS_SUPER_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-#include "xfs_rw.h"
-#include <linux/sysctl.h>
-#include <linux/proc_fs.h>
-
-
-static struct ctl_table_header *xfs_table_header;
-
-
-#ifdef CONFIG_PROC_FS
-STATIC int
-xfs_stats_clear_proc_handler(
- ctl_table *ctl,
- int write,
- struct file *filp,
- void *buffer,
- size_t *lenp)
-{
- int c, ret, *valp = ctl->data;
- __uint32_t vn_active;
-
- ret = proc_dointvec_minmax(ctl, write, filp, buffer, lenp);
-
- if (!ret && write && *valp) {
- printk("XFS Clearing xfsstats\n");
- for (c = 0; c < NR_CPUS; c++) {
- if (!cpu_possible(c)) continue;
- preempt_disable();
- /* save vn_active, it's a universal truth! */
- vn_active = per_cpu(xfsstats, c).vn_active;
- memset(&per_cpu(xfsstats, c), 0,
- sizeof(struct xfsstats));
- per_cpu(xfsstats, c).vn_active = vn_active;
- preempt_enable();
- }
- xfs_stats_clear = 0;
- }
-
- return ret;
-}
-#endif /* CONFIG_PROC_FS */
-
-STATIC ctl_table xfs_table[] = {
- {XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.restrict_chown.min, &xfs_params.restrict_chown.max},
-
- {XFS_SGID_INHERIT, "irix_sgid_inherit", &xfs_params.sgid_inherit.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.sgid_inherit.min, &xfs_params.sgid_inherit.max},
-
- {XFS_SYMLINK_MODE, "irix_symlink_mode", &xfs_params.symlink_mode.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.symlink_mode.min, &xfs_params.symlink_mode.max},
-
- {XFS_PANIC_MASK, "panic_mask", &xfs_params.panic_mask.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.panic_mask.min, &xfs_params.panic_mask.max},
-
- {XFS_ERRLEVEL, "error_level", &xfs_params.error_level.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.error_level.min, &xfs_params.error_level.max},
-
- {XFS_SYNC_INTERVAL, "sync_interval", &xfs_params.sync_interval.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.sync_interval.min, &xfs_params.sync_interval.max},
-
- {XFS_INHERIT_SYNC, "inherit_sync", &xfs_params.inherit_sync.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.inherit_sync.min, &xfs_params.inherit_sync.max},
-
- {XFS_INHERIT_NODUMP, "inherit_nodump", &xfs_params.inherit_nodump.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.inherit_nodump.min, &xfs_params.inherit_nodump.max},
-
- {XFS_INHERIT_NOATIME, "inherit_noatime", &xfs_params.inherit_noatim.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.inherit_noatim.min, &xfs_params.inherit_noatim.max},
-
- {XFS_FLUSH_INTERVAL, "flush_interval", &xfs_params.flush_interval.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.flush_interval.min, &xfs_params.flush_interval.max},
-
- {XFS_AGE_BUFFER, "age_buffer", &xfs_params.age_buffer.val,
- sizeof(int), 0644, NULL, &proc_dointvec_minmax,
- &sysctl_intvec, NULL,
- &xfs_params.age_buffer.min, &xfs_params.age_buffer.max},
-
- /* please keep this the last entry */
-#ifdef CONFIG_PROC_FS
- {XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val,
- sizeof(int), 0644, NULL, &xfs_stats_clear_proc_handler,
- &sysctl_intvec, NULL,
- &xfs_params.stats_clear.min, &xfs_params.stats_clear.max},
-#endif /* CONFIG_PROC_FS */
-
- {0}
-};
-
-STATIC ctl_table xfs_dir_table[] = {
- {FS_XFS, "xfs", NULL, 0, 0555, xfs_table},
- {0}
-};
-
-STATIC ctl_table xfs_root_table[] = {
- {CTL_FS, "fs", NULL, 0, 0555, xfs_dir_table},
- {0}
-};
-
-void
-xfs_sysctl_register(void)
-{
- xfs_table_header = register_sysctl_table(xfs_root_table, 1);
-}
-
-void
-xfs_sysctl_unregister(void)
-{
- if (xfs_table_header)
- unregister_sysctl_table(xfs_table_header);
-}
+++ /dev/null
-/*
- * Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#ifndef __XFS_SYSCTL_H__
-#define __XFS_SYSCTL_H__
-
-#include <linux/sysctl.h>
-
-/*
- * Tunable xfs parameters
- */
-
-typedef struct xfs_sysctl_val {
- int min;
- int val;
- int max;
-} xfs_sysctl_val_t;
-
-typedef struct xfs_param {
- xfs_sysctl_val_t restrict_chown;/* Root/non-root can give away files.*/
- xfs_sysctl_val_t sgid_inherit; /* Inherit S_ISGID bit if process' GID
- * is not a member of the parent dir
- * GID */
- xfs_sysctl_val_t symlink_mode; /* Link creat mode affected by umask */
- xfs_sysctl_val_t panic_mask; /* bitmask to cause panic on errors. */
- xfs_sysctl_val_t error_level; /* Degree of reporting for problems */
- xfs_sysctl_val_t sync_interval; /* time between sync calls */
- xfs_sysctl_val_t stats_clear; /* Reset all XFS statistics to zero. */
- xfs_sysctl_val_t inherit_sync; /* Inherit the "sync" inode flag. */
- xfs_sysctl_val_t inherit_nodump;/* Inherit the "nodump" inode flag. */
- xfs_sysctl_val_t inherit_noatim;/* Inherit the "noatime" inode flag. */
- xfs_sysctl_val_t flush_interval;/* interval between runs of the
- * delwri flush daemon. */
- xfs_sysctl_val_t age_buffer; /* time for buffer to age before
- * we flush it. */
-} xfs_param_t;
-
-/*
- * xfs_error_level:
- *
- * How much error reporting will be done when internal problems are
- * encountered. These problems normally return an EFSCORRUPTED to their
- * caller, with no other information reported.
- *
- * 0 No error reports
- * 1 Report EFSCORRUPTED errors that will cause a filesystem shutdown
- * 5 Report all EFSCORRUPTED errors (all of the above errors, plus any
- * additional errors that are known to not cause shutdowns)
- *
- * xfs_panic_mask bit 0x8 turns the error reports into panics
- */
-
-enum {
- XFS_RESTRICT_CHOWN = 3,
- XFS_SGID_INHERIT = 4,
- XFS_SYMLINK_MODE = 5,
- XFS_PANIC_MASK = 6,
- XFS_ERRLEVEL = 7,
- XFS_SYNC_INTERVAL = 8,
- XFS_STATS_CLEAR = 12,
- XFS_INHERIT_SYNC = 13,
- XFS_INHERIT_NODUMP = 14,
- XFS_INHERIT_NOATIME = 15,
- XFS_FLUSH_INTERVAL = 16,
- XFS_AGE_BUFFER = 17,
-};
-
-extern xfs_param_t xfs_params;
-
-#ifdef CONFIG_SYSCTL
-extern void xfs_sysctl_register(void);
-extern void xfs_sysctl_unregister(void);
-#else
-# define xfs_sysctl_register() do { } while (0)
-# define xfs_sysctl_unregister() do { } while (0)
-#endif /* CONFIG_SYSCTL */
-
-#endif /* __XFS_SYSCTL_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-/*
- * Dummy file that can contain a timestamp to put into the
- * XFS init string, to help users keep track of what they're
- * running
- */
-
-#ifndef __XFS_VERSION_H__
-#define __XFS_VERSION_H__
-
-#define XFS_VERSION_STRING "SGI XFS"
-
-#endif /* __XFS_VERSION_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_macros.h"
-#include "xfs_inum.h"
-#include "xfs_log.h"
-#include "xfs_clnt.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_dir.h"
-#include "xfs_dir2.h"
-#include "xfs_imap.h"
-#include "xfs_alloc.h"
-#include "xfs_dmapi.h"
-#include "xfs_mount.h"
-#include "xfs_quota.h"
-
-int
-vfs_mount(
- struct bhv_desc *bdp,
- struct xfs_mount_args *args,
- struct cred *cr)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_mount)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_mount)(next, args, cr));
-}
-
-int
-vfs_parseargs(
- struct bhv_desc *bdp,
- char *s,
- struct xfs_mount_args *args,
- int f)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_parseargs)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_parseargs)(next, s, args, f));
-}
-
-int
-vfs_showargs(
- struct bhv_desc *bdp,
- struct seq_file *m)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_showargs)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_showargs)(next, m));
-}
-
-int
-vfs_unmount(
- struct bhv_desc *bdp,
- int fl,
- struct cred *cr)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_unmount)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_unmount)(next, fl, cr));
-}
-
-int
-vfs_mntupdate(
- struct bhv_desc *bdp,
- int *fl,
- struct xfs_mount_args *args)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_mntupdate)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_mntupdate)(next, fl, args));
-}
-
-int
-vfs_root(
- struct bhv_desc *bdp,
- struct vnode **vpp)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_root)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_root)(next, vpp));
-}
-
-int
-vfs_statvfs(
- struct bhv_desc *bdp,
- xfs_statfs_t *sp,
- struct vnode *vp)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_statvfs)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_statvfs)(next, sp, vp));
-}
-
-int
-vfs_sync(
- struct bhv_desc *bdp,
- int fl,
- struct cred *cr)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_sync)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_sync)(next, fl, cr));
-}
-
-int
-vfs_vget(
- struct bhv_desc *bdp,
- struct vnode **vpp,
- struct fid *fidp)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_vget)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_vget)(next, vpp, fidp));
-}
-
-int
-vfs_dmapiops(
- struct bhv_desc *bdp,
- caddr_t addr)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_dmapiops)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_dmapiops)(next, addr));
-}
-
-int
-vfs_quotactl(
- struct bhv_desc *bdp,
- int cmd,
- int id,
- caddr_t addr)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_quotactl)
- next = BHV_NEXT(next);
- return ((*bhvtovfsops(next)->vfs_quotactl)(next, cmd, id, addr));
-}
-
-void
-vfs_init_vnode(
- struct bhv_desc *bdp,
- struct vnode *vp,
- struct bhv_desc *bp,
- int unlock)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_init_vnode)
- next = BHV_NEXT(next);
- ((*bhvtovfsops(next)->vfs_init_vnode)(next, vp, bp, unlock));
-}
-
-void
-vfs_force_shutdown(
- struct bhv_desc *bdp,
- int fl,
- char *file,
- int line)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_force_shutdown)
- next = BHV_NEXT(next);
- ((*bhvtovfsops(next)->vfs_force_shutdown)(next, fl, file, line));
-}
-
-void
-vfs_freeze(
- struct bhv_desc *bdp)
-{
- struct bhv_desc *next = bdp;
-
- ASSERT(next);
- while (! (bhvtovfsops(next))->vfs_freeze)
- next = BHV_NEXT(next);
- ((*bhvtovfsops(next)->vfs_freeze)(next));
-}
-
-vfs_t *
-vfs_allocate( void )
-{
- struct vfs *vfsp;
-
- vfsp = kmem_zalloc(sizeof(vfs_t), KM_SLEEP);
- bhv_head_init(VFS_BHVHEAD(vfsp), "vfs");
- init_waitqueue_head(&vfsp->vfs_wait_sync_task);
- return vfsp;
-}
-
-void
-vfs_deallocate(
- struct vfs *vfsp)
-{
- bhv_head_destroy(VFS_BHVHEAD(vfsp));
- kmem_free(vfsp, sizeof(vfs_t));
-}
-
-void
-vfs_insertops(
- struct vfs *vfsp,
- struct bhv_vfsops *vfsops)
-{
- struct bhv_desc *bdp;
-
- bdp = kmem_alloc(sizeof(struct bhv_desc), KM_SLEEP);
- bhv_desc_init(bdp, NULL, vfsp, vfsops);
- bhv_insert(&vfsp->vfs_bh, bdp);
-}
-
-void
-vfs_insertbhv(
- struct vfs *vfsp,
- struct bhv_desc *bdp,
- struct vfsops *vfsops,
- void *mount)
-{
- bhv_desc_init(bdp, mount, vfsp, vfsops);
- bhv_insert_initial(&vfsp->vfs_bh, bdp);
-}
-
-void
-bhv_remove_vfsops(
- struct vfs *vfsp,
- int pos)
-{
- struct bhv_desc *bhv;
-
- bhv = bhv_lookup_range(&vfsp->vfs_bh, pos, pos);
- if (!bhv)
- return;
- bhv_remove(&vfsp->vfs_bh, bhv);
- kmem_free(bhv, sizeof(*bhv));
-}
-
-void
-bhv_remove_all_vfsops(
- struct vfs *vfsp,
- int freebase)
-{
- struct xfs_mount *mp;
-
- bhv_remove_vfsops(vfsp, VFS_POSITION_QM);
- bhv_remove_vfsops(vfsp, VFS_POSITION_DM);
- if (!freebase)
- return;
- mp = XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfsp), &xfs_vfsops));
- VFS_REMOVEBHV(vfsp, &mp->m_bhv);
- xfs_mount_free(mp, 0);
-}
-
-void
-bhv_insert_all_vfsops(
- struct vfs *vfsp)
-{
- struct xfs_mount *mp;
-
- mp = xfs_mount_init();
- vfs_insertbhv(vfsp, &mp->m_bhv, &xfs_vfsops, mp);
- vfs_insertdmapi(vfsp);
- vfs_insertquota(vfsp);
-}
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-#ifndef __XFS_VFS_H__
-#define __XFS_VFS_H__
-
-#include <linux/vfs.h>
-#include "xfs_fs.h"
-
-struct fid;
-struct cred;
-struct vnode;
-struct kstatfs;
-struct seq_file;
-struct super_block;
-struct xfs_mount_args;
-
-typedef struct kstatfs xfs_statfs_t;
-
-typedef struct vfs {
- u_int vfs_flag; /* flags */
- xfs_fsid_t vfs_fsid; /* file system ID */
- xfs_fsid_t *vfs_altfsid; /* An ID fixed for life of FS */
- bhv_head_t vfs_bh; /* head of vfs behavior chain */
- struct super_block *vfs_super; /* Linux superblock structure */
- struct task_struct *vfs_sync_task;
- wait_queue_head_t vfs_wait_sync_task;
-} vfs_t;
-
-#define vfs_fbhv vfs_bh.bh_first /* 1st on vfs behavior chain */
-
-#define bhvtovfs(bdp) ( (struct vfs *)BHV_VOBJ(bdp) )
-#define bhvtovfsops(bdp) ( (struct vfsops *)BHV_OPS(bdp) )
-#define VFS_BHVHEAD(vfs) ( &(vfs)->vfs_bh )
-#define VFS_REMOVEBHV(vfs, bdp) ( bhv_remove(VFS_BHVHEAD(vfs), bdp) )
-
-#define VFS_POSITION_BASE BHV_POSITION_BASE /* chain bottom */
-#define VFS_POSITION_TOP BHV_POSITION_TOP /* chain top */
-#define VFS_POSITION_INVALID BHV_POSITION_INVALID /* invalid pos. num */
-
-typedef enum {
- VFS_BHV_UNKNOWN, /* not specified */
- VFS_BHV_XFS, /* xfs */
- VFS_BHV_DM, /* data migration */
- VFS_BHV_QM, /* quota manager */
- VFS_BHV_IO, /* IO path */
- VFS_BHV_END /* housekeeping end-of-range */
-} vfs_bhv_t;
-
-#define VFS_POSITION_XFS (BHV_POSITION_BASE)
-#define VFS_POSITION_DM (VFS_POSITION_BASE+10)
-#define VFS_POSITION_QM (VFS_POSITION_BASE+20)
-#define VFS_POSITION_IO (VFS_POSITION_BASE+30)
-
-#define VFS_RDONLY 0x0001 /* read-only vfs */
-#define VFS_GRPID 0x0002 /* group-ID assigned from directory */
-#define VFS_DMI 0x0004 /* filesystem has the DMI enabled */
-#define VFS_UMOUNT 0x0008 /* unmount in progress */
-#define VFS_END 0x0008 /* max flag */
-
-#define SYNC_ATTR 0x0001 /* sync attributes */
-#define SYNC_CLOSE 0x0002 /* close file system down */
-#define SYNC_DELWRI 0x0004 /* look at delayed writes */
-#define SYNC_WAIT 0x0008 /* wait for i/o to complete */
-#define SYNC_BDFLUSH 0x0010 /* BDFLUSH is calling -- don't block */
-#define SYNC_FSDATA 0x0020 /* flush fs data (e.g. superblocks) */
-#define SYNC_REFCACHE 0x0040 /* prune some of the nfs ref cache */
-#define SYNC_REMOUNT 0x0080 /* remount readonly, no dummy LRs */
-
-typedef int (*vfs_mount_t)(bhv_desc_t *,
- struct xfs_mount_args *, struct cred *);
-typedef int (*vfs_parseargs_t)(bhv_desc_t *, char *,
- struct xfs_mount_args *, int);
-typedef int (*vfs_showargs_t)(bhv_desc_t *, struct seq_file *);
-typedef int (*vfs_unmount_t)(bhv_desc_t *, int, struct cred *);
-typedef int (*vfs_mntupdate_t)(bhv_desc_t *, int *,
- struct xfs_mount_args *);
-typedef int (*vfs_root_t)(bhv_desc_t *, struct vnode **);
-typedef int (*vfs_statvfs_t)(bhv_desc_t *, xfs_statfs_t *, struct vnode *);
-typedef int (*vfs_sync_t)(bhv_desc_t *, int, struct cred *);
-typedef int (*vfs_vget_t)(bhv_desc_t *, struct vnode **, struct fid *);
-typedef int (*vfs_dmapiops_t)(bhv_desc_t *, caddr_t);
-typedef int (*vfs_quotactl_t)(bhv_desc_t *, int, int, caddr_t);
-typedef void (*vfs_init_vnode_t)(bhv_desc_t *,
- struct vnode *, bhv_desc_t *, int);
-typedef void (*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int);
-typedef void (*vfs_freeze_t)(bhv_desc_t *);
-
-typedef struct vfsops {
- bhv_position_t vf_position; /* behavior chain position */
- vfs_mount_t vfs_mount; /* mount file system */
- vfs_parseargs_t vfs_parseargs; /* parse mount options */
- vfs_showargs_t vfs_showargs; /* unparse mount options */
- vfs_unmount_t vfs_unmount; /* unmount file system */
- vfs_mntupdate_t vfs_mntupdate; /* update file system options */
- vfs_root_t vfs_root; /* get root vnode */
- vfs_statvfs_t vfs_statvfs; /* file system statistics */
- vfs_sync_t vfs_sync; /* flush files */
- vfs_vget_t vfs_vget; /* get vnode from fid */
- vfs_dmapiops_t vfs_dmapiops; /* data migration */
- vfs_quotactl_t vfs_quotactl; /* disk quota */
- vfs_init_vnode_t vfs_init_vnode; /* initialize a new vnode */
- vfs_force_shutdown_t vfs_force_shutdown; /* crash and burn */
- vfs_freeze_t vfs_freeze; /* freeze fs for snapshot */
-} vfsops_t;
-
-/*
- * VFS's. Operates on vfs structure pointers (starts at bhv head).
- */
-#define VHEAD(v) ((v)->vfs_fbhv)
-#define VFS_MOUNT(v, ma,cr, rv) ((rv) = vfs_mount(VHEAD(v), ma,cr))
-#define VFS_PARSEARGS(v, o,ma,f, rv) ((rv) = vfs_parseargs(VHEAD(v), o,ma,f))
-#define VFS_SHOWARGS(v, m, rv) ((rv) = vfs_showargs(VHEAD(v), m))
-#define VFS_UNMOUNT(v, f, cr, rv) ((rv) = vfs_unmount(VHEAD(v), f,cr))
-#define VFS_MNTUPDATE(v, fl, args, rv) ((rv) = vfs_mntupdate(VHEAD(v), fl, args))
-#define VFS_ROOT(v, vpp, rv) ((rv) = vfs_root(VHEAD(v), vpp))
-#define VFS_STATVFS(v, sp,vp, rv) ((rv) = vfs_statvfs(VHEAD(v), sp,vp))
-#define VFS_SYNC(v, flag,cr, rv) ((rv) = vfs_sync(VHEAD(v), flag,cr))
-#define VFS_VGET(v, vpp,fidp, rv) ((rv) = vfs_vget(VHEAD(v), vpp,fidp))
-#define VFS_DMAPIOPS(v, p, rv) ((rv) = vfs_dmapiops(VHEAD(v), p))
-#define VFS_QUOTACTL(v, c,id,p, rv) ((rv) = vfs_quotactl(VHEAD(v), c,id,p))
-#define VFS_INIT_VNODE(v, vp,b,ul) ( vfs_init_vnode(VHEAD(v), vp,b,ul) )
-#define VFS_FORCE_SHUTDOWN(v, fl,f,l) ( vfs_force_shutdown(VHEAD(v), fl,f,l) )
-#define VFS_FREEZE(v) ( vfs_freeze(VHEAD(v)) )
-
-/*
- * PVFS's. Operates on behavior descriptor pointers.
- */
-#define PVFS_MOUNT(b, ma,cr, rv) ((rv) = vfs_mount(b, ma,cr))
-#define PVFS_PARSEARGS(b, o,ma,f, rv) ((rv) = vfs_parseargs(b, o,ma,f))
-#define PVFS_SHOWARGS(b, m, rv) ((rv) = vfs_showargs(b, m))
-#define PVFS_UNMOUNT(b, f,cr, rv) ((rv) = vfs_unmount(b, f,cr))
-#define PVFS_MNTUPDATE(b, fl, args, rv) ((rv) = vfs_mntupdate(b, fl, args))
-#define PVFS_ROOT(b, vpp, rv) ((rv) = vfs_root(b, vpp))
-#define PVFS_STATVFS(b, sp,vp, rv) ((rv) = vfs_statvfs(b, sp,vp))
-#define PVFS_SYNC(b, flag,cr, rv) ((rv) = vfs_sync(b, flag,cr))
-#define PVFS_VGET(b, vpp,fidp, rv) ((rv) = vfs_vget(b, vpp,fidp))
-#define PVFS_DMAPIOPS(b, p, rv) ((rv) = vfs_dmapiops(b, p))
-#define PVFS_QUOTACTL(b, c,id,p, rv) ((rv) = vfs_quotactl(b, c,id,p))
-#define PVFS_INIT_VNODE(b, vp,b2,ul) ( vfs_init_vnode(b, vp,b2,ul) )
-#define PVFS_FORCE_SHUTDOWN(b, fl,f,l) ( vfs_force_shutdown(b, fl,f,l) )
-#define PVFS_FREEZE(b) ( vfs_freeze(b) )
-
-extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *);
-extern int vfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int);
-extern int vfs_showargs(bhv_desc_t *, struct seq_file *);
-extern int vfs_unmount(bhv_desc_t *, int, struct cred *);
-extern int vfs_mntupdate(bhv_desc_t *, int *, struct xfs_mount_args *);
-extern int vfs_root(bhv_desc_t *, struct vnode **);
-extern int vfs_statvfs(bhv_desc_t *, xfs_statfs_t *, struct vnode *);
-extern int vfs_sync(bhv_desc_t *, int, struct cred *);
-extern int vfs_vget(bhv_desc_t *, struct vnode **, struct fid *);
-extern int vfs_dmapiops(bhv_desc_t *, caddr_t);
-extern int vfs_quotactl(bhv_desc_t *, int, int, caddr_t);
-extern void vfs_init_vnode(bhv_desc_t *, struct vnode *, bhv_desc_t *, int);
-extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int);
-extern void vfs_freeze(bhv_desc_t *);
-
-typedef struct bhv_vfsops {
- struct vfsops bhv_common;
- void * bhv_custom;
-} bhv_vfsops_t;
-
-#define vfs_bhv_lookup(v, id) ( bhv_lookup_range(&(v)->vfs_bh, (id), (id)) )
-#define vfs_bhv_custom(b) ( ((bhv_vfsops_t *)BHV_OPS(b))->bhv_custom )
-#define vfs_bhv_set_custom(b,o) ( (b)->bhv_custom = (void *)(o))
-#define vfs_bhv_clr_custom(b) ( (b)->bhv_custom = NULL )
-
-extern vfs_t *vfs_allocate(void);
-extern void vfs_deallocate(vfs_t *);
-extern void vfs_insertops(vfs_t *, bhv_vfsops_t *);
-extern void vfs_insertbhv(vfs_t *, bhv_desc_t *, vfsops_t *, void *);
-
-extern void bhv_insert_all_vfsops(struct vfs *);
-extern void bhv_remove_all_vfsops(struct vfs *, int);
-extern void bhv_remove_vfsops(struct vfs *, int);
-
-#endif /* __XFS_VFS_H__ */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-
-
-uint64_t vn_generation; /* vnode generation number */
-spinlock_t vnumber_lock = SPIN_LOCK_UNLOCKED;
-
-/*
- * Dedicated vnode inactive/reclaim sync semaphores.
- * Prime number of hash buckets since address is used as the key.
- */
-#define NVSYNC 37
-#define vptosync(v) (&vsync[((unsigned long)v) % NVSYNC])
-sv_t vsync[NVSYNC];
-
-/*
- * Translate stat(2) file types to vnode types and vice versa.
- * Aware of numeric order of S_IFMT and vnode type values.
- */
-enum vtype iftovt_tab[] = {
- VNON, VFIFO, VCHR, VNON, VDIR, VNON, VBLK, VNON,
- VREG, VNON, VLNK, VNON, VSOCK, VNON, VNON, VNON
-};
-
-u_short vttoif_tab[] = {
- 0, S_IFREG, S_IFDIR, S_IFBLK, S_IFCHR, S_IFLNK, S_IFIFO, 0, S_IFSOCK
-};
-
-
-void
-vn_init(void)
-{
- register sv_t *svp;
- register int i;
-
- for (svp = vsync, i = 0; i < NVSYNC; i++, svp++)
- init_sv(svp, SV_DEFAULT, "vsy", i);
-}
-
-/*
- * Clean a vnode of filesystem-specific data and prepare it for reuse.
- */
-STATIC int
-vn_reclaim(
- struct vnode *vp)
-{
- int error;
-
- XFS_STATS_INC(vn_reclaim);
- vn_trace_entry(vp, "vn_reclaim", (inst_t *)__return_address);
-
- /*
- * Only make the VOP_RECLAIM call if there are behaviors
- * to call.
- */
- if (vp->v_fbhv) {
- VOP_RECLAIM(vp, error);
- if (error)
- return -error;
- }
- ASSERT(vp->v_fbhv == NULL);
-
- VN_LOCK(vp);
- vp->v_flag &= (VRECLM|VWAIT);
- VN_UNLOCK(vp, 0);
-
- vp->v_type = VNON;
- vp->v_fbhv = NULL;
-
-#ifdef XFS_VNODE_TRACE
- ktrace_free(vp->v_trace);
- vp->v_trace = NULL;
-#endif
-
- return 0;
-}
-
-STATIC void
-vn_wakeup(
- struct vnode *vp)
-{
- VN_LOCK(vp);
- if (vp->v_flag & VWAIT)
- sv_broadcast(vptosync(vp));
- vp->v_flag &= ~(VRECLM|VWAIT|VMODIFIED);
- VN_UNLOCK(vp, 0);
-}
-
-int
-vn_wait(
- struct vnode *vp)
-{
- VN_LOCK(vp);
- if (vp->v_flag & (VINACT | VRECLM)) {
- vp->v_flag |= VWAIT;
- sv_wait(vptosync(vp), PINOD, &vp->v_lock, 0);
- return 1;
- }
- VN_UNLOCK(vp, 0);
- return 0;
-}
-
-struct vnode *
-vn_initialize(
- struct inode *inode)
-{
- struct vnode *vp = LINVFS_GET_VP(inode);
-
- XFS_STATS_INC(vn_active);
- XFS_STATS_INC(vn_alloc);
-
- vp->v_flag = VMODIFIED;
- spinlock_init(&vp->v_lock, "v_lock");
-
- spin_lock(&vnumber_lock);
- if (!++vn_generation) /* v_number shouldn't be zero */
- vn_generation++;
- vp->v_number = vn_generation;
- spin_unlock(&vnumber_lock);
-
- ASSERT(VN_CACHED(vp) == 0);
-
- /* Initialize the first behavior and the behavior chain head. */
- vn_bhv_head_init(VN_BHV_HEAD(vp), "vnode");
-
-#ifdef XFS_VNODE_TRACE
- vp->v_trace = ktrace_alloc(VNODE_TRACE_SIZE, KM_SLEEP);
- printk("Allocated VNODE_TRACE at 0x%p\n", vp->v_trace);
-#endif /* XFS_VNODE_TRACE */
-
- vn_trace_exit(vp, "vn_initialize", (inst_t *)__return_address);
- return vp;
-}
-
-/*
- * Get a reference on a vnode.
- */
-vnode_t *
-vn_get(
- struct vnode *vp,
- vmap_t *vmap)
-{
- struct inode *inode;
-
- XFS_STATS_INC(vn_get);
- inode = LINVFS_GET_IP(vp);
- if (inode->i_state & I_FREEING)
- return NULL;
-
- inode = ilookup(vmap->v_vfsp->vfs_super, vmap->v_ino);
- if (!inode) /* Inode not present */
- return NULL;
-
- vn_trace_exit(vp, "vn_get", (inst_t *)__return_address);
-
- return vp;
-}
-
-/*
- * Revalidate the Linux inode from the vnode.
- */
-int
-vn_revalidate(
- struct vnode *vp)
-{
- struct inode *inode;
- vattr_t va;
- int error;
-
- vn_trace_entry(vp, "vn_revalidate", (inst_t *)__return_address);
- ASSERT(vp->v_fbhv != NULL);
-
- va.va_mask = XFS_AT_STAT|XFS_AT_XFLAGS;
- VOP_GETATTR(vp, &va, 0, NULL, error);
- if (!error) {
- inode = LINVFS_GET_IP(vp);
- inode->i_mode = VTTOIF(va.va_type) | va.va_mode;
- inode->i_nlink = va.va_nlink;
- inode->i_uid = va.va_uid;
- inode->i_gid = va.va_gid;
- inode->i_blocks = va.va_nblocks;
- inode->i_mtime = va.va_mtime;
- inode->i_ctime = va.va_ctime;
- inode->i_atime = va.va_atime;
- if (va.va_xflags & XFS_XFLAG_IMMUTABLE)
- inode->i_flags |= S_IMMUTABLE;
- else
- inode->i_flags &= ~S_IMMUTABLE;
- if (va.va_xflags & XFS_XFLAG_APPEND)
- inode->i_flags |= S_APPEND;
- else
- inode->i_flags &= ~S_APPEND;
- if (va.va_xflags & XFS_XFLAG_SYNC)
- inode->i_flags |= S_SYNC;
- else
- inode->i_flags &= ~S_SYNC;
- if (va.va_xflags & XFS_XFLAG_NOATIME)
- inode->i_flags |= S_NOATIME;
- else
- inode->i_flags &= ~S_NOATIME;
- VUNMODIFY(vp);
- }
- return -error;
-}
-
-/*
- * purge a vnode from the cache
- * At this point the vnode is guaranteed to have no references (vn_count == 0)
- * The caller has to make sure that there are no ways someone could
- * get a handle (via vn_get) on the vnode (usually done via a mount/vfs lock).
- */
-void
-vn_purge(
- struct vnode *vp,
- vmap_t *vmap)
-{
- vn_trace_entry(vp, "vn_purge", (inst_t *)__return_address);
-
-again:
- /*
- * Check whether vp has already been reclaimed since our caller
- * sampled its version while holding a filesystem cache lock that
- * its VOP_RECLAIM function acquires.
- */
- VN_LOCK(vp);
- if (vp->v_number != vmap->v_number) {
- VN_UNLOCK(vp, 0);
- return;
- }
-
- /*
- * If vp is being reclaimed or inactivated, wait until it is inert,
- * then proceed. Can't assume that vnode is actually reclaimed
- * just because the reclaimed flag is asserted -- a vn_alloc
- * reclaim can fail.
- */
- if (vp->v_flag & (VINACT | VRECLM)) {
- ASSERT(vn_count(vp) == 0);
- vp->v_flag |= VWAIT;
- sv_wait(vptosync(vp), PINOD, &vp->v_lock, 0);
- goto again;
- }
-
- /*
- * Another process could have raced in and gotten this vnode...
- */
- if (vn_count(vp) > 0) {
- VN_UNLOCK(vp, 0);
- return;
- }
-
- XFS_STATS_DEC(vn_active);
- vp->v_flag |= VRECLM;
- VN_UNLOCK(vp, 0);
-
- /*
- * Call VOP_RECLAIM and clean vp. The FSYNC_INVAL flag tells
- * vp's filesystem to flush and invalidate all cached resources.
- * When vn_reclaim returns, vp should have no private data,
- * either in a system cache or attached to v_data.
- */
- if (vn_reclaim(vp) != 0)
- panic("vn_purge: cannot reclaim");
-
- /*
- * Wakeup anyone waiting for vp to be reclaimed.
- */
- vn_wakeup(vp);
-}
-
-/*
- * Add a reference to a referenced vnode.
- */
-struct vnode *
-vn_hold(
- struct vnode *vp)
-{
- struct inode *inode;
-
- XFS_STATS_INC(vn_hold);
-
- VN_LOCK(vp);
- inode = igrab(LINVFS_GET_IP(vp));
- ASSERT(inode);
- VN_UNLOCK(vp, 0);
-
- return vp;
-}
-
-/*
- * Call VOP_INACTIVE on last reference.
- */
-void
-vn_rele(
- struct vnode *vp)
-{
- int vcnt;
- int cache;
-
- XFS_STATS_INC(vn_rele);
-
- VN_LOCK(vp);
-
- vn_trace_entry(vp, "vn_rele", (inst_t *)__return_address);
- vcnt = vn_count(vp);
-
- /*
- * Since we always get called from put_inode we know
- * that i_count won't be decremented after we
- * return.
- */
- if (!vcnt) {
- /*
- * As soon as we turn this on, noone can find us in vn_get
- * until we turn off VINACT or VRECLM
- */
- vp->v_flag |= VINACT;
- VN_UNLOCK(vp, 0);
-
- /*
- * Do not make the VOP_INACTIVE call if there
- * are no behaviors attached to the vnode to call.
- */
- if (vp->v_fbhv)
- VOP_INACTIVE(vp, NULL, cache);
-
- VN_LOCK(vp);
- if (vp->v_flag & VWAIT)
- sv_broadcast(vptosync(vp));
-
- vp->v_flag &= ~(VINACT|VWAIT|VRECLM|VMODIFIED);
- }
-
- VN_UNLOCK(vp, 0);
-
- vn_trace_exit(vp, "vn_rele", (inst_t *)__return_address);
-}
-
-/*
- * Finish the removal of a vnode.
- */
-void
-vn_remove(
- struct vnode *vp)
-{
- vmap_t vmap;
-
- /* Make sure we don't do this to the same vnode twice */
- if (!(vp->v_fbhv))
- return;
-
- XFS_STATS_INC(vn_remove);
- vn_trace_exit(vp, "vn_remove", (inst_t *)__return_address);
-
- /*
- * After the following purge the vnode
- * will no longer exist.
- */
- VMAP(vp, vmap);
- vn_purge(vp, &vmap);
-}
-
-
-#ifdef XFS_VNODE_TRACE
-
-#define KTRACE_ENTER(vp, vk, s, line, ra) \
- ktrace_enter( (vp)->v_trace, \
-/* 0 */ (void *)(__psint_t)(vk), \
-/* 1 */ (void *)(s), \
-/* 2 */ (void *)(__psint_t) line, \
-/* 3 */ (void *)(vn_count(vp)), \
-/* 4 */ (void *)(ra), \
-/* 5 */ (void *)(__psunsigned_t)(vp)->v_flag, \
-/* 6 */ (void *)(__psint_t)smp_processor_id(), \
-/* 7 */ (void *)(__psint_t)(current->pid), \
-/* 8 */ (void *)__return_address, \
-/* 9 */ 0, 0, 0, 0, 0, 0, 0)
-
-/*
- * Vnode tracing code.
- */
-void
-vn_trace_entry(vnode_t *vp, char *func, inst_t *ra)
-{
- KTRACE_ENTER(vp, VNODE_KTRACE_ENTRY, func, 0, ra);
-}
-
-void
-vn_trace_exit(vnode_t *vp, char *func, inst_t *ra)
-{
- KTRACE_ENTER(vp, VNODE_KTRACE_EXIT, func, 0, ra);
-}
-
-void
-vn_trace_hold(vnode_t *vp, char *file, int line, inst_t *ra)
-{
- KTRACE_ENTER(vp, VNODE_KTRACE_HOLD, file, line, ra);
-}
-
-void
-vn_trace_ref(vnode_t *vp, char *file, int line, inst_t *ra)
-{
- KTRACE_ENTER(vp, VNODE_KTRACE_REF, file, line, ra);
-}
-
-void
-vn_trace_rele(vnode_t *vp, char *file, int line, inst_t *ra)
-{
- KTRACE_ENTER(vp, VNODE_KTRACE_RELE, file, line, ra);
-}
-#endif /* XFS_VNODE_TRACE */
+++ /dev/null
-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- *
- * Portions Copyright (c) 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-#ifndef __XFS_VNODE_H__
-#define __XFS_VNODE_H__
-
-struct uio;
-struct file;
-struct vattr;
-struct xfs_iomap;
-struct attrlist_cursor_kern;
-
-/*
- * Vnode types. VNON means no type.
- */
-enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VFIFO, VBAD, VSOCK };
-
-typedef xfs_ino_t vnumber_t;
-typedef struct dentry vname_t;
-typedef bhv_head_t vn_bhv_head_t;
-
-/*
- * MP locking protocols:
- * v_flag, v_vfsp VN_LOCK/VN_UNLOCK
- * v_type read-only or fs-dependent
- */
-typedef struct vnode {
- __u32 v_flag; /* vnode flags (see below) */
- enum vtype v_type; /* vnode type */
- struct vfs *v_vfsp; /* ptr to containing VFS */
- vnumber_t v_number; /* in-core vnode number */
- vn_bhv_head_t v_bh; /* behavior head */
- spinlock_t v_lock; /* VN_LOCK/VN_UNLOCK */
- struct inode v_inode; /* Linux inode */
-#ifdef XFS_VNODE_TRACE
- struct ktrace *v_trace; /* trace header structure */
-#endif
-} vnode_t;
-
-#define v_fbhv v_bh.bh_first /* first behavior */
-#define v_fops v_bh.bh_first->bd_ops /* first behavior ops */
-
-#define VNODE_POSITION_BASE BHV_POSITION_BASE /* chain bottom */
-#define VNODE_POSITION_TOP BHV_POSITION_TOP /* chain top */
-#define VNODE_POSITION_INVALID BHV_POSITION_INVALID /* invalid pos. num */
-
-typedef enum {
- VN_BHV_UNKNOWN, /* not specified */
- VN_BHV_XFS, /* xfs */
- VN_BHV_DM, /* data migration */
- VN_BHV_QM, /* quota manager */
- VN_BHV_IO, /* IO path */
- VN_BHV_END /* housekeeping end-of-range */
-} vn_bhv_t;
-
-#define VNODE_POSITION_XFS (VNODE_POSITION_BASE)
-#define VNODE_POSITION_DM (VNODE_POSITION_BASE+10)
-#define VNODE_POSITION_QM (VNODE_POSITION_BASE+20)
-#define VNODE_POSITION_IO (VNODE_POSITION_BASE+30)
-
-/*
- * Macros for dealing with the behavior descriptor inside of the vnode.
- */
-#define BHV_TO_VNODE(bdp) ((vnode_t *)BHV_VOBJ(bdp))
-#define BHV_TO_VNODE_NULL(bdp) ((vnode_t *)BHV_VOBJNULL(bdp))
-
-#define VN_BHV_HEAD(vp) ((bhv_head_t *)(&((vp)->v_bh)))
-#define vn_bhv_head_init(bhp,name) bhv_head_init(bhp,name)
-#define vn_bhv_remove(bhp,bdp) bhv_remove(bhp,bdp)
-#define vn_bhv_lookup(bhp,ops) bhv_lookup(bhp,ops)
-#define vn_bhv_lookup_unlocked(bhp,ops) bhv_lookup_unlocked(bhp,ops)
-
-/*
- * Vnode to Linux inode mapping.
- */
-#define LINVFS_GET_VP(inode) ((vnode_t *)list_entry(inode, vnode_t, v_inode))
-#define LINVFS_GET_IP(vp) (&(vp)->v_inode)
-
-/*
- * Convert between vnode types and inode formats (since POSIX.1
- * defines mode word of stat structure in terms of inode formats).
- */
-extern enum vtype iftovt_tab[];
-extern u_short vttoif_tab[];
-#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
-#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
-#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
-
-
-/*
- * Vnode flags.
- */
-#define VINACT 0x1 /* vnode is being inactivated */
-#define VRECLM 0x2 /* vnode is being reclaimed */
-#define VWAIT 0x4 /* waiting for VINACT/VRECLM to end */
-#define VMODIFIED 0x8 /* XFS inode state possibly differs */
- /* to the Linux inode state. */
-
-/*
- * Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter.
- */
-typedef enum vrwlock {
- VRWLOCK_NONE,
- VRWLOCK_READ,
- VRWLOCK_WRITE,
- VRWLOCK_WRITE_DIRECT,
- VRWLOCK_TRY_READ,
- VRWLOCK_TRY_WRITE
-} vrwlock_t;
-
-/*
- * Return values for VOP_INACTIVE. A return value of
- * VN_INACTIVE_NOCACHE implies that the file system behavior
- * has disassociated its state and bhv_desc_t from the vnode.
- */
-#define VN_INACTIVE_CACHE 0
-#define VN_INACTIVE_NOCACHE 1
-
-/*
- * Values for the cmd code given to VOP_VNODE_CHANGE.
- */
-typedef enum vchange {
- VCHANGE_FLAGS_FRLOCKS = 0,
- VCHANGE_FLAGS_ENF_LOCKING = 1,
- VCHANGE_FLAGS_TRUNCATED = 2,
- VCHANGE_FLAGS_PAGE_DIRTY = 3,
- VCHANGE_FLAGS_IOEXCL_COUNT = 4
-} vchange_t;
-
-
-typedef int (*vop_open_t)(bhv_desc_t *, struct cred *);
-typedef ssize_t (*vop_read_t)(bhv_desc_t *, struct kiocb *,
- const struct iovec *, unsigned int,
- loff_t *, int, struct cred *);
-typedef ssize_t (*vop_write_t)(bhv_desc_t *, struct kiocb *,
- const struct iovec *, unsigned int,
- loff_t *, int, struct cred *);
-typedef ssize_t (*vop_sendfile_t)(bhv_desc_t *, struct file *,
- loff_t *, int, size_t, read_actor_t,
- void *, struct cred *);
-typedef int (*vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *,
- int, unsigned int, unsigned long);
-typedef int (*vop_getattr_t)(bhv_desc_t *, struct vattr *, int,
- struct cred *);
-typedef int (*vop_setattr_t)(bhv_desc_t *, struct vattr *, int,
- struct cred *);
-typedef int (*vop_access_t)(bhv_desc_t *, int, struct cred *);
-typedef int (*vop_lookup_t)(bhv_desc_t *, vname_t *, vnode_t **,
- int, vnode_t *, struct cred *);
-typedef int (*vop_create_t)(bhv_desc_t *, vname_t *, struct vattr *,
- vnode_t **, struct cred *);
-typedef int (*vop_remove_t)(bhv_desc_t *, vname_t *, struct cred *);
-typedef int (*vop_link_t)(bhv_desc_t *, vnode_t *, vname_t *,
- struct cred *);
-typedef int (*vop_rename_t)(bhv_desc_t *, vname_t *, vnode_t *, vname_t *,
- struct cred *);
-typedef int (*vop_mkdir_t)(bhv_desc_t *, vname_t *, struct vattr *,
- vnode_t **, struct cred *);
-typedef int (*vop_rmdir_t)(bhv_desc_t *, vname_t *, struct cred *);
-typedef int (*vop_readdir_t)(bhv_desc_t *, struct uio *, struct cred *,
- int *);
-typedef int (*vop_symlink_t)(bhv_desc_t *, vname_t *, struct vattr *,
- char *, vnode_t **, struct cred *);
-typedef int (*vop_readlink_t)(bhv_desc_t *, struct uio *, int,
- struct cred *);
-typedef int (*vop_fsync_t)(bhv_desc_t *, int, struct cred *,
- xfs_off_t, xfs_off_t);
-typedef int (*vop_inactive_t)(bhv_desc_t *, struct cred *);
-typedef int (*vop_fid2_t)(bhv_desc_t *, struct fid *);
-typedef int (*vop_release_t)(bhv_desc_t *);
-typedef int (*vop_rwlock_t)(bhv_desc_t *, vrwlock_t);
-typedef void (*vop_rwunlock_t)(bhv_desc_t *, vrwlock_t);
-typedef int (*vop_bmap_t)(bhv_desc_t *, xfs_off_t, ssize_t, int,
- struct xfs_iomap *, int *);
-typedef int (*vop_reclaim_t)(bhv_desc_t *);
-typedef int (*vop_attr_get_t)(bhv_desc_t *, char *, char *, int *, int,
- struct cred *);
-typedef int (*vop_attr_set_t)(bhv_desc_t *, char *, char *, int, int,
- struct cred *);
-typedef int (*vop_attr_remove_t)(bhv_desc_t *, char *, int, struct cred *);
-typedef int (*vop_attr_list_t)(bhv_desc_t *, char *, int, int,
- struct attrlist_cursor_kern *, struct cred *);
-typedef void (*vop_link_removed_t)(bhv_desc_t *, vnode_t *, int);
-typedef void (*vop_vnode_change_t)(bhv_desc_t *, vchange_t, __psint_t);
-typedef void (*vop_ptossvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
-typedef void (*vop_pflushinvalvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
-typedef int (*vop_pflushvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t,
- uint64_t, int);
-typedef int (*vop_iflush_t)(bhv_desc_t *, int);
-
-
-typedef struct vnodeops {
- bhv_position_t vn_position; /* position within behavior chain */
- vop_open_t vop_open;
- vop_read_t vop_read;
- vop_write_t vop_write;
- vop_sendfile_t vop_sendfile;
- vop_ioctl_t vop_ioctl;
- vop_getattr_t vop_getattr;
- vop_setattr_t vop_setattr;
- vop_access_t vop_access;
- vop_lookup_t vop_lookup;
- vop_create_t vop_create;
- vop_remove_t vop_remove;
- vop_link_t vop_link;
- vop_rename_t vop_rename;
- vop_mkdir_t vop_mkdir;
- vop_rmdir_t vop_rmdir;
- vop_readdir_t vop_readdir;
- vop_symlink_t vop_symlink;
- vop_readlink_t vop_readlink;
- vop_fsync_t vop_fsync;
- vop_inactive_t vop_inactive;
- vop_fid2_t vop_fid2;
- vop_rwlock_t vop_rwlock;
- vop_rwunlock_t vop_rwunlock;
- vop_bmap_t vop_bmap;
- vop_reclaim_t vop_reclaim;
- vop_attr_get_t vop_attr_get;
- vop_attr_set_t vop_attr_set;
- vop_attr_remove_t vop_attr_remove;
- vop_attr_list_t vop_attr_list;
- vop_link_removed_t vop_link_removed;
- vop_vnode_change_t vop_vnode_change;
- vop_ptossvp_t vop_tosspages;
- vop_pflushinvalvp_t vop_flushinval_pages;
- vop_pflushvp_t vop_flush_pages;
- vop_release_t vop_release;
- vop_iflush_t vop_iflush;
-} vnodeops_t;
-
-/*
- * VOP's.
- */
-#define _VOP_(op, vp) (*((vnodeops_t *)(vp)->v_fops)->op)
-
-#define VOP_READ(vp,file,iov,segs,offset,ioflags,cr,rv) \
- rv = _VOP_(vop_read, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
-#define VOP_WRITE(vp,file,iov,segs,offset,ioflags,cr,rv) \
- rv = _VOP_(vop_write, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
-#define VOP_SENDFILE(vp,f,off,ioflags,cnt,act,targ,cr,rv) \
- rv = _VOP_(vop_sendfile, vp)((vp)->v_fbhv,f,off,ioflags,cnt,act,targ,cr)
-#define VOP_BMAP(vp,of,sz,rw,b,n,rv) \
- rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n)
-#define VOP_OPEN(vp, cr, rv) \
- rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr)
-#define VOP_GETATTR(vp, vap, f, cr, rv) \
- rv = _VOP_(vop_getattr, vp)((vp)->v_fbhv, vap, f, cr)
-#define VOP_SETATTR(vp, vap, f, cr, rv) \
- rv = _VOP_(vop_setattr, vp)((vp)->v_fbhv, vap, f, cr)
-#define VOP_ACCESS(vp, mode, cr, rv) \
- rv = _VOP_(vop_access, vp)((vp)->v_fbhv, mode, cr)
-#define VOP_LOOKUP(vp,d,vpp,f,rdir,cr,rv) \
- rv = _VOP_(vop_lookup, vp)((vp)->v_fbhv,d,vpp,f,rdir,cr)
-#define VOP_CREATE(dvp,d,vap,vpp,cr,rv) \
- rv = _VOP_(vop_create, dvp)((dvp)->v_fbhv,d,vap,vpp,cr)
-#define VOP_REMOVE(dvp,d,cr,rv) \
- rv = _VOP_(vop_remove, dvp)((dvp)->v_fbhv,d,cr)
-#define VOP_LINK(tdvp,fvp,d,cr,rv) \
- rv = _VOP_(vop_link, tdvp)((tdvp)->v_fbhv,fvp,d,cr)
-#define VOP_RENAME(fvp,fnm,tdvp,tnm,cr,rv) \
- rv = _VOP_(vop_rename, fvp)((fvp)->v_fbhv,fnm,tdvp,tnm,cr)
-#define VOP_MKDIR(dp,d,vap,vpp,cr,rv) \
- rv = _VOP_(vop_mkdir, dp)((dp)->v_fbhv,d,vap,vpp,cr)
-#define VOP_RMDIR(dp,d,cr,rv) \
- rv = _VOP_(vop_rmdir, dp)((dp)->v_fbhv,d,cr)
-#define VOP_READDIR(vp,uiop,cr,eofp,rv) \
- rv = _VOP_(vop_readdir, vp)((vp)->v_fbhv,uiop,cr,eofp)
-#define VOP_SYMLINK(dvp,d,vap,tnm,vpp,cr,rv) \
- rv = _VOP_(vop_symlink, dvp) ((dvp)->v_fbhv,d,vap,tnm,vpp,cr)
-#define VOP_READLINK(vp,uiop,fl,cr,rv) \
- rv = _VOP_(vop_readlink, vp)((vp)->v_fbhv,uiop,fl,cr)
-#define VOP_FSYNC(vp,f,cr,b,e,rv) \
- rv = _VOP_(vop_fsync, vp)((vp)->v_fbhv,f,cr,b,e)
-#define VOP_INACTIVE(vp, cr, rv) \
- rv = _VOP_(vop_inactive, vp)((vp)->v_fbhv, cr)
-#define VOP_RELEASE(vp, rv) \
- rv = _VOP_(vop_release, vp)((vp)->v_fbhv)
-#define VOP_FID2(vp, fidp, rv) \
- rv = _VOP_(vop_fid2, vp)((vp)->v_fbhv, fidp)
-#define VOP_RWLOCK(vp,i) \
- (void)_VOP_(vop_rwlock, vp)((vp)->v_fbhv, i)
-#define VOP_RWLOCK_TRY(vp,i) \
- _VOP_(vop_rwlock, vp)((vp)->v_fbhv, i)
-#define VOP_RWUNLOCK(vp,i) \
- (void)_VOP_(vop_rwunlock, vp)((vp)->v_fbhv, i)
-#define VOP_FRLOCK(vp,c,fl,flags,offset,fr,rv) \
- rv = _VOP_(vop_frlock, vp)((vp)->v_fbhv,c,fl,flags,offset,fr)
-#define VOP_RECLAIM(vp, rv) \
- rv = _VOP_(vop_reclaim, vp)((vp)->v_fbhv)
-#define VOP_ATTR_GET(vp, name, val, vallenp, fl, cred, rv) \
- rv = _VOP_(vop_attr_get, vp)((vp)->v_fbhv,name,val,vallenp,fl,cred)
-#define VOP_ATTR_SET(vp, name, val, vallen, fl, cred, rv) \
- rv = _VOP_(vop_attr_set, vp)((vp)->v_fbhv,name,val,vallen,fl,cred)
-#define VOP_ATTR_REMOVE(vp, name, flags, cred, rv) \
- rv = _VOP_(vop_attr_remove, vp)((vp)->v_fbhv,name,flags,cred)
-#define VOP_ATTR_LIST(vp, buf, buflen, fl, cursor, cred, rv) \
- rv = _VOP_(vop_attr_list, vp)((vp)->v_fbhv,buf,buflen,fl,cursor,cred)
-#define VOP_LINK_REMOVED(vp, dvp, linkzero) \
- (void)_VOP_(vop_link_removed, vp)((vp)->v_fbhv, dvp, linkzero)
-#define VOP_VNODE_CHANGE(vp, cmd, val) \
- (void)_VOP_(vop_vnode_change, vp)((vp)->v_fbhv,cmd,val)
-/*
- * These are page cache functions that now go thru VOPs.
- * 'last' parameter is unused and left in for IRIX compatibility
- */
-#define VOP_TOSS_PAGES(vp, first, last, fiopt) \
- _VOP_(vop_tosspages, vp)((vp)->v_fbhv,first, last, fiopt)
-/*
- * 'last' parameter is unused and left in for IRIX compatibility
- */
-#define VOP_FLUSHINVAL_PAGES(vp, first, last, fiopt) \
- _VOP_(vop_flushinval_pages, vp)((vp)->v_fbhv,first,last,fiopt)
-/*
- * 'last' parameter is unused and left in for IRIX compatibility
- */
-#define VOP_FLUSH_PAGES(vp, first, last, flags, fiopt, rv) \
- rv = _VOP_(vop_flush_pages, vp)((vp)->v_fbhv,first,last,flags,fiopt)
-#define VOP_IOCTL(vp, inode, filp, fl, cmd, arg, rv) \
- rv = _VOP_(vop_ioctl, vp)((vp)->v_fbhv,inode,filp,fl,cmd,arg)
-#define VOP_IFLUSH(vp, flags, rv) \
- rv = _VOP_(vop_iflush, vp)((vp)->v_fbhv, flags)
-
-/*
- * Flags for read/write calls - same values as IRIX
- */
-#define IO_ISDIRECT 0x00004 /* bypass page cache */
-#define IO_INVIS 0x00020 /* don't update inode timestamps */
-
-/*
- * Flags for VOP_IFLUSH call
- */
-#define FLUSH_SYNC 1 /* wait for flush to complete */
-#define FLUSH_INODE 2 /* flush the inode itself */
-#define FLUSH_LOG 4 /* force the last log entry for
- * this inode out to disk */
-
-/*
- * Flush/Invalidate options for VOP_TOSS_PAGES, VOP_FLUSHINVAL_PAGES and
- * VOP_FLUSH_PAGES.
- */
-#define FI_NONE 0 /* none */
-#define FI_REMAPF 1 /* Do a remapf prior to the operation */
-#define FI_REMAPF_LOCKED 2 /* Do a remapf prior to the operation.
- Prevent VM access to the pages until
- the operation completes. */
-
-/*
- * Vnode attributes. va_mask indicates those attributes the caller
- * wants to set or extract.
- */
-typedef struct vattr {
- int va_mask; /* bit-mask of attributes present */
- enum vtype va_type; /* vnode type (for create) */
- mode_t va_mode; /* file access mode and type */
- nlink_t va_nlink; /* number of references to file */
- uid_t va_uid; /* owner user id */
- gid_t va_gid; /* owner group id */
- xfs_ino_t va_nodeid; /* file id */
- xfs_off_t va_size; /* file size in bytes */
- u_long va_blocksize; /* blocksize preferred for i/o */
- struct timespec va_atime; /* time of last access */
- struct timespec va_mtime; /* time of last modification */
- struct timespec va_ctime; /* time file changed */
- u_int va_gen; /* generation number of file */
- xfs_dev_t va_rdev; /* device the special file represents */
- __int64_t va_nblocks; /* number of blocks allocated */
- u_long va_xflags; /* random extended file flags */
- u_long va_extsize; /* file extent size */
- u_long va_nextents; /* number of extents in file */
- u_long va_anextents; /* number of attr extents in file */
- int va_projid; /* project id */
-} vattr_t;
-
-/*
- * setattr or getattr attributes
- */
-#define XFS_AT_TYPE 0x00000001
-#define XFS_AT_MODE 0x00000002
-#define XFS_AT_UID 0x00000004
-#define XFS_AT_GID 0x00000008
-#define XFS_AT_FSID 0x00000010
-#define XFS_AT_NODEID 0x00000020
-#define XFS_AT_NLINK 0x00000040
-#define XFS_AT_SIZE 0x00000080
-#define XFS_AT_ATIME 0x00000100
-#define XFS_AT_MTIME 0x00000200
-#define XFS_AT_CTIME 0x00000400
-#define XFS_AT_RDEV 0x00000800
-#define XFS_AT_BLKSIZE 0x00001000
-#define XFS_AT_NBLOCKS 0x00002000
-#define XFS_AT_VCODE 0x00004000
-#define XFS_AT_MAC 0x00008000
-#define XFS_AT_UPDATIME 0x00010000
-#define XFS_AT_UPDMTIME 0x00020000
-#define XFS_AT_UPDCTIME 0x00040000
-#define XFS_AT_ACL 0x00080000
-#define XFS_AT_CAP 0x00100000
-#define XFS_AT_INF 0x00200000
-#define XFS_AT_XFLAGS 0x00400000
-#define XFS_AT_EXTSIZE 0x00800000
-#define XFS_AT_NEXTENTS 0x01000000
-#define XFS_AT_ANEXTENTS 0x02000000
-#define XFS_AT_PROJID 0x04000000
-#define XFS_AT_SIZE_NOPERM 0x08000000
-#define XFS_AT_GENCOUNT 0x10000000
-
-#define XFS_AT_ALL (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
- XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
- XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
- XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\
- XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\
- XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT)
-
-#define XFS_AT_STAT (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
- XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
- XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
- XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_PROJID)
-
-#define XFS_AT_TIMES (XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME)
-
-#define XFS_AT_UPDTIMES (XFS_AT_UPDATIME|XFS_AT_UPDMTIME|XFS_AT_UPDCTIME)
-
-#define XFS_AT_NOSET (XFS_AT_NLINK|XFS_AT_RDEV|XFS_AT_FSID|XFS_AT_NODEID|\
- XFS_AT_TYPE|XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|\
- XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_GENCOUNT)
-
-/*
- * Modes.
- */
-#define VSUID S_ISUID /* set user id on execution */
-#define VSGID S_ISGID /* set group id on execution */
-#define VSVTX S_ISVTX /* save swapped text even after use */
-#define VREAD S_IRUSR /* read, write, execute permissions */
-#define VWRITE S_IWUSR
-#define VEXEC S_IXUSR
-
-#define MODEMASK S_IALLUGO /* mode bits plus permission bits */
-
-/*
- * Check whether mandatory file locking is enabled.
- */
-#define MANDLOCK(vp, mode) \
- ((vp)->v_type == VREG && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
-
-extern void vn_init(void);
-extern int vn_wait(struct vnode *);
-extern vnode_t *vn_initialize(struct inode *);
-
-/*
- * Acquiring and invalidating vnodes:
- *
- * if (vn_get(vp, version, 0))
- * ...;
- * vn_purge(vp, version);
- *
- * vn_get and vn_purge must be called with vmap_t arguments, sampled
- * while a lock that the vnode's VOP_RECLAIM function acquires is
- * held, to ensure that the vnode sampled with the lock held isn't
- * recycled (VOP_RECLAIMed) or deallocated between the release of the lock
- * and the subsequent vn_get or vn_purge.
- */
-
-/*
- * vnode_map structures _must_ match vn_epoch and vnode structure sizes.
- */
-typedef struct vnode_map {
- vfs_t *v_vfsp;
- vnumber_t v_number; /* in-core vnode number */
- xfs_ino_t v_ino; /* inode # */
-} vmap_t;
-
-#define VMAP(vp, vmap) {(vmap).v_vfsp = (vp)->v_vfsp, \
- (vmap).v_number = (vp)->v_number, \
- (vmap).v_ino = (vp)->v_inode.i_ino; }
-
-extern void vn_purge(struct vnode *, vmap_t *);
-extern vnode_t *vn_get(struct vnode *, vmap_t *);
-extern int vn_revalidate(struct vnode *);
-extern void vn_remove(struct vnode *);
-
-static inline int vn_count(struct vnode *vp)
-{
- return atomic_read(&LINVFS_GET_IP(vp)->i_count);
-}
-
-/*
- * Vnode reference counting functions (and macros for compatibility).
- */
-extern vnode_t *vn_hold(struct vnode *);
-extern void vn_rele(struct vnode *);
-
-#if defined(XFS_VNODE_TRACE)
-#define VN_HOLD(vp) \
- ((void)vn_hold(vp), \
- vn_trace_hold(vp, __FILE__, __LINE__, (inst_t *)__return_address))
-#define VN_RELE(vp) \
- (vn_trace_rele(vp, __FILE__, __LINE__, (inst_t *)__return_address), \
- iput(LINVFS_GET_IP(vp)))
-#else
-#define VN_HOLD(vp) ((void)vn_hold(vp))
-#define VN_RELE(vp) (iput(LINVFS_GET_IP(vp)))
-#endif
-
-/*
- * Vname handling macros.
- */
-#define VNAME(dentry) ((char *) (dentry)->d_name.name)
-#define VNAMELEN(dentry) ((dentry)->d_name.len)
-#define VNAME_TO_VNODE(dentry) (LINVFS_GET_VP((dentry)->d_inode))
-
-/*
- * Vnode spinlock manipulation.
- */
-#define VN_LOCK(vp) mutex_spinlock(&(vp)->v_lock)
-#define VN_UNLOCK(vp, s) mutex_spinunlock(&(vp)->v_lock, s)
-#define VN_FLAGSET(vp,b) vn_flagset(vp,b)
-#define VN_FLAGCLR(vp,b) vn_flagclr(vp,b)
-
-static __inline__ void vn_flagset(struct vnode *vp, uint flag)
-{
- spin_lock(&vp->v_lock);
- vp->v_flag |= flag;
- spin_unlock(&vp->v_lock);
-}
-
-static __inline__ void vn_flagclr(struct vnode *vp, uint flag)
-{
- spin_lock(&vp->v_lock);
- vp->v_flag &= ~flag;
- spin_unlock(&vp->v_lock);
-}
-
-/*
- * Update modify/access/change times on the vnode
- */
-#define VN_MTIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_mtime = *(tvp))
-#define VN_ATIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_atime = *(tvp))
-#define VN_CTIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_ctime = *(tvp))
-
-/*
- * Some useful predicates.
- */
-#define VN_MAPPED(vp) mapping_mapped(LINVFS_GET_IP(vp)->i_mapping)
-#define VN_CACHED(vp) (LINVFS_GET_IP(vp)->i_mapping->nrpages)
-#define VN_DIRTY(vp) mapping_tagged(LINVFS_GET_IP(vp)->i_mapping, \
- PAGECACHE_TAG_DIRTY)
-#define VMODIFY(vp) VN_FLAGSET(vp, VMODIFIED)
-#define VUNMODIFY(vp) VN_FLAGCLR(vp, VMODIFIED)
-
-/*
- * Flags to VOP_SETATTR/VOP_GETATTR.
- */
-#define ATTR_UTIME 0x01 /* non-default utime(2) request */
-#define ATTR_DMI 0x08 /* invocation from a DMI function */
-#define ATTR_LAZY 0x80 /* set/get attributes lazily */
-#define ATTR_NONBLOCK 0x100 /* return EAGAIN if operation would block */
-
-/*
- * Flags to VOP_FSYNC and VOP_RECLAIM.
- */
-#define FSYNC_NOWAIT 0 /* asynchronous flush */
-#define FSYNC_WAIT 0x1 /* synchronous fsync or forced reclaim */
-#define FSYNC_INVAL 0x2 /* flush and invalidate cached data */
-#define FSYNC_DATA 0x4 /* synchronous fsync of data only */
-
-/*
- * Tracking vnode activity.
- */
-#if defined(XFS_VNODE_TRACE)
-
-#define VNODE_TRACE_SIZE 16 /* number of trace entries */
-#define VNODE_KTRACE_ENTRY 1
-#define VNODE_KTRACE_EXIT 2
-#define VNODE_KTRACE_HOLD 3
-#define VNODE_KTRACE_REF 4
-#define VNODE_KTRACE_RELE 5
-
-extern void vn_trace_entry(struct vnode *, char *, inst_t *);
-extern void vn_trace_exit(struct vnode *, char *, inst_t *);
-extern void vn_trace_hold(struct vnode *, char *, int, inst_t *);
-extern void vn_trace_ref(struct vnode *, char *, int, inst_t *);
-extern void vn_trace_rele(struct vnode *, char *, int, inst_t *);
-
-#define VN_TRACE(vp) \
- vn_trace_ref(vp, __FILE__, __LINE__, (inst_t *)__return_address)
-#else
-#define vn_trace_entry(a,b,c)
-#define vn_trace_exit(a,b,c)
-#define vn_trace_hold(a,b,c,d)
-#define vn_trace_ref(a,b,c,d)
-#define vn_trace_rele(a,b,c,d)
-#define VN_TRACE(vp)
-#endif
-
-#endif /* __XFS_VNODE_H__ */
+++ /dev/null
-#ifndef _ALPHA_RMAP_H
-#define _ALPHA_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-#ifndef __ALPHA_SETUP_H
-#define __ALPHA_SETUP_H
-
-#define COMMAND_LINE_SIZE 256
-
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-cl7500/ide.h
- *
- * Copyright (c) 1997 Russell King
- *
- * Modifications:
- * 29-07-1998 RMK Major re-work of IDE architecture specific code
- */
-#include <asm/irq.h>
-#include <asm/arch/hardware.h>
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
- unsigned long reg = data_port;
- int i;
-
- memset(hw, 0, sizeof(*hw));
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- if (ctrl_port) {
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
- } else {
- hw->io_ports[IDE_CONTROL_OFFSET] = data_port + 0x206;
- }
- if (irq != NULL)
- *irq = 0;
- hw->io_ports[IDE_IRQ_OFFSET] = 0;
-}
-
-/*
- * This registers the standard ports for this architecture with the IDE
- * driver.
- */
-static __inline__ void
-ide_init_default_hwifs(void)
-{
- hw_regs_t hw;
-
- ide_init_hwif_ports(&hw, ISASLOT_IO + 0x1f0, ISASLOT_IO + 0x3f6, NULL);
- hw.irq = IRQ_ISA_14;
- ide_register_hw(&hw);
-}
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-cl7500/keyboard.h
- * from linux/include/asm-arm/arch-rpc/keyboard.h
- *
- * Keyboard driver definitions for CL7500 architecture
- *
- * Copyright (C) 1998-2001 Russell King
- */
-#include <asm/irq.h>
-#define NR_SCANCODES 128
-
-extern int ps2kbd_init_hw(void);
-
-#define kbd_disable_irq() disable_irq(IRQ_KEYBOARDRX)
-#define kbd_enable_irq() enable_irq(IRQ_KEYBOARDRX)
-#define kbd_init_hw() ps2kbd_init_hw()
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-clps711x/keyboard.h
- *
- * Copyright (C) 1998-2001 Russell King
- */
-#include <asm/mach-types.h>
-
-#define NR_SCANCODES 128
-
-#define kbd_disable_irq() do { } while (0)
-#define kbd_enable_irq() do { } while (0)
-
-/*
- * EDB7211 keyboard driver
- */
-extern void edb7211_kbd_init_hw(void);
-extern void clps711x_kbd_init_hw(void);
-
-static inline void kbd_init_hw(void)
-{
- if (machine_is_edb7211())
- edb7211_kbd_init_hw();
-
- if (machine_is_autcpu12())
- clps711x_kbd_init_hw();
-}
+++ /dev/null
-/* no ide */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-ebsa285/ide.h
- *
- * Copyright (C) 1998 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Modifications:
- * 29-07-1998 RMK Major re-work of IDE architecture specific code
- */
-#include <asm/irq.h>
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
- unsigned long reg = data_port;
- int i;
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
- if (irq)
- *irq = 0;
-}
-
-/*
- * This registers the standard ports for this architecture with the IDE
- * driver.
- */
-static __inline__ void ide_init_default_hwifs(void)
-{
-#if 0
- hw_regs_t hw;
-
- memset(hw, 0, sizeof(*hw));
-
- ide_init_hwif_ports(&hw, 0x1f0, 0x3f6, NULL);
- hw.irq = IRQ_HARDDISK;
- ide_register_hw(&hw);
-#endif
-}
+++ /dev/null
-/*
- * include/asm-arm/arch-iop3xx/ide.h
- *
- * Generic IDE functions for IOP310 systems
- *
- * Author: Deepak Saxena <dsaxena@mvista.com>
- *
- * Copyright 2001 MontaVista Software Inc.
- *
- * 09/26/2001 - Sharon Baartmans
- * Fixed so it actually works.
- */
-
-#ifndef _ASM_ARCH_IDE_H_
-#define _ASM_ARCH_IDE_H_
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
- unsigned long reg = data_port;
- int i;
- int regincr = 1;
-
- memset(hw, 0, sizeof(*hw));
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += regincr;
- }
-
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
-
- if (irq) *irq = 0;
-}
-
-/*
- * This registers the standard ports for this architecture with the IDE
- * driver.
- */
-static __inline__ void ide_init_default_hwifs(void)
-{
- /* There are no standard ports */
-}
-
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-l7200/ide.h
- *
- * Copyright (c) 2000 Steve Hill (sjhill@cotw.com)
- *
- * Changelog:
- * 03-29-2000 SJH Created file placeholder
- */
-#include <asm/irq.h>
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
-}
-
-/*
- * This registers the standard ports for this architecture with the IDE
- * driver.
- */
-static __inline__ void
-ide_init_default_hwifs(void)
-{
-}
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-l7200/keyboard.h
- *
- * Keyboard driver definitions for LinkUp Systems L7200 architecture
- *
- * Copyright (C) 2000 Scott A McConnell (samcconn@cotw.com)
- * Steve Hill (sjhill@cotw.com)
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive for
- * more details.
- *
- * Changelog:
- * 07-18-2000 SAM Created file
- * 07-28-2000 SJH Complete rewrite
- */
-
-#include <asm/irq.h>
-
-#error This needs fixing --rmk
-
-/*
- * Layout of L7200 keyboard registers
- */
-struct KBD_Port {
- unsigned int KBDR;
- unsigned int KBDMR;
- unsigned int KBSBSR;
- unsigned int Reserved;
- unsigned int KBKSR;
-};
-
-#define KBD_BASE IO_BASE_2 + 0x4000
-#define l7200kbd_hwregs ((volatile struct KBD_Port *) (KBD_BASE))
-
-extern void l7200kbd_init_hw(void);
-extern int l7200kbd_translate(unsigned char scancode, unsigned char *keycode,
- char raw_mode);
-
-#define kbd_setkeycode(sc,kc) (-EINVAL)
-#define kbd_getkeycode(sc) (-EINVAL)
-
-#define kbd_translate(sc, kcp, rm) ({ *(kcp) = (sc); 1; })
-#define kbd_unexpected_up(kc) (0200)
-#define kbd_leds(leds) do {} while (0)
-#define kbd_init_hw() l7200kbd_init_hw()
-#define kbd_sysrq_xlate ((unsigned char *)NULL)
-#define kbd_disable_irq() disable_irq(IRQ_GCTC2)
-#define kbd_enable_irq() enable_irq(IRQ_GCTC2)
-
-#define SYSRQ_KEY 13
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-nexuspci/ide.h
- *
- * Copyright (c) 1998 Russell King
- *
- * Modifications:
- * 29-07-1998 RMK Major re-work of IDE architecture specific code
- */
-#include <asm/irq.h>
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
- unsigned long reg = data_port;
- int i;
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
- if (irq)
- *irq = 0;
-}
-
-/*
- * This registers the standard ports for this architecture with the IDE
- * driver.
- */
-static __inline__ void ide_init_default_hwifs(void)
-{
- /* There are no standard ports */
-}
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-omap/omap-h2.h
- *
- * Hardware definitions for TI OMAP1610 H2 board.
- *
- * Cleanup for Linux-2.6 by Dirk Behme <dirk.behme@de.bosch.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __ASM_ARCH_OMAP_H2_H
-#define __ASM_ARCH_OMAP_H2_H
-
-/* Placeholder for H2 specific defines */
-
-#endif /* __ASM_ARCH_OMAP_H2_H */
-
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-omap/omap-innovator.h
- *
- * Copyright (C) 2001 RidgeRun, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#ifndef __ASM_ARCH_OMAP_INNOVATOR_H
-#define __ASM_ARCH_OMAP_INNOVATOR_H
-
-#if defined (CONFIG_ARCH_OMAP1510)
-
-/*
- * ---------------------------------------------------------------------------
- * OMAP-1510 FPGA
- * ---------------------------------------------------------------------------
- */
-#define OMAP1510P1_FPGA_BASE 0xE8000000 /* Virtual */
-#define OMAP1510P1_FPGA_SIZE SZ_4K
-#define OMAP1510P1_FPGA_START 0x08000000 /* Physical */
-
-/* Revision */
-#define OMAP1510P1_FPGA_REV_LOW (OMAP1510P1_FPGA_BASE + 0x0)
-#define OMAP1510P1_FPGA_REV_HIGH (OMAP1510P1_FPGA_BASE + 0x1)
-
-#define OMAP1510P1_FPGA_LCD_PANEL_CONTROL (OMAP1510P1_FPGA_BASE + 0x2)
-#define OMAP1510P1_FPGA_LED_DIGIT (OMAP1510P1_FPGA_BASE + 0x3)
-#define INNOVATOR_FPGA_HID_SPI (OMAP1510P1_FPGA_BASE + 0x4)
-#define OMAP1510P1_FPGA_POWER (OMAP1510P1_FPGA_BASE + 0x5)
-
-/* Interrupt status */
-#define OMAP1510P1_FPGA_ISR_LO (OMAP1510P1_FPGA_BASE + 0x6)
-#define OMAP1510P1_FPGA_ISR_HI (OMAP1510P1_FPGA_BASE + 0x7)
-
-/* Interrupt mask */
-#define OMAP1510P1_FPGA_IMR_LO (OMAP1510P1_FPGA_BASE + 0x8)
-#define OMAP1510P1_FPGA_IMR_HI (OMAP1510P1_FPGA_BASE + 0x9)
-
-/* Reset registers */
-#define OMAP1510P1_FPGA_HOST_RESET (OMAP1510P1_FPGA_BASE + 0xa)
-#define OMAP1510P1_FPGA_RST (OMAP1510P1_FPGA_BASE + 0xb)
-
-#define OMAP1510P1_FPGA_AUDIO (OMAP1510P1_FPGA_BASE + 0xc)
-#define OMAP1510P1_FPGA_DIP (OMAP1510P1_FPGA_BASE + 0xe)
-#define OMAP1510P1_FPGA_FPGA_IO (OMAP1510P1_FPGA_BASE + 0xf)
-#define OMAP1510P1_FPGA_UART1 (OMAP1510P1_FPGA_BASE + 0x14)
-#define OMAP1510P1_FPGA_UART2 (OMAP1510P1_FPGA_BASE + 0x15)
-#define OMAP1510P1_FPGA_OMAP1510_STATUS (OMAP1510P1_FPGA_BASE + 0x16)
-#define OMAP1510P1_FPGA_BOARD_REV (OMAP1510P1_FPGA_BASE + 0x18)
-#define OMAP1510P1_PPT_DATA (OMAP1510P1_FPGA_BASE + 0x100)
-#define OMAP1510P1_PPT_STATUS (OMAP1510P1_FPGA_BASE + 0x101)
-#define OMAP1510P1_PPT_CONTROL (OMAP1510P1_FPGA_BASE + 0x102)
-
-#define OMAP1510P1_FPGA_TOUCHSCREEN (OMAP1510P1_FPGA_BASE + 0x204)
-
-#define INNOVATOR_FPGA_INFO (OMAP1510P1_FPGA_BASE + 0x205)
-#define INNOVATOR_FPGA_LCD_BRIGHT_LO (OMAP1510P1_FPGA_BASE + 0x206)
-#define INNOVATOR_FPGA_LCD_BRIGHT_HI (OMAP1510P1_FPGA_BASE + 0x207)
-#define INNOVATOR_FPGA_LED_GRN_LO (OMAP1510P1_FPGA_BASE + 0x208)
-#define INNOVATOR_FPGA_LED_GRN_HI (OMAP1510P1_FPGA_BASE + 0x209)
-#define INNOVATOR_FPGA_LED_RED_LO (OMAP1510P1_FPGA_BASE + 0x20a)
-#define INNOVATOR_FPGA_LED_RED_HI (OMAP1510P1_FPGA_BASE + 0x20b)
-#define INNOVATOR_FPGA_CAM_USB_CONTROL (OMAP1510P1_FPGA_BASE + 0x20c)
-#define INNOVATOR_FPGA_EXP_CONTROL (OMAP1510P1_FPGA_BASE + 0x20d)
-#define INNOVATOR_FPGA_ISR2 (OMAP1510P1_FPGA_BASE + 0x20e)
-#define INNOVATOR_FPGA_IMR2 (OMAP1510P1_FPGA_BASE + 0x210)
-
-#define OMAP1510P1_FPGA_ETHR_START (OMAP1510P1_FPGA_START + 0x300)
-#define OMAP1510P1_FPGA_ETHR_BASE (OMAP1510P1_FPGA_BASE + 0x300)
-
-/*
- * Power up Giga UART driver, turn on HID clock.
- * Turn off BT power, since we're not using it and it
- * draws power.
- */
-#define OMAP1510P1_FPGA_RESET_VALUE 0x42
-
-#define OMAP1510P1_FPGA_PCR_IF_PD0 (1 << 7)
-#define OMAP1510P1_FPGA_PCR_COM2_EN (1 << 6)
-#define OMAP1510P1_FPGA_PCR_COM1_EN (1 << 5)
-#define OMAP1510P1_FPGA_PCR_EXP_PD0 (1 << 4)
-#define OMAP1510P1_FPGA_PCR_EXP_PD1 (1 << 3)
-#define OMAP1510P1_FPGA_PCR_48MHZ_CLK (1 << 2)
-#define OMAP1510P1_FPGA_PCR_4MHZ_CLK (1 << 1)
-#define OMAP1510P1_FPGA_PCR_RSRVD_BIT0 (1 << 0)
-
-/*
- * Innovator/OMAP1510 FPGA HID register bit definitions
- */
-#define FPGA_HID_SCLK (1<<0) /* output */
-#define FPGA_HID_MOSI (1<<1) /* output */
-#define FPGA_HID_nSS (1<<2) /* output 0/1 chip idle/select */
-#define FPGA_HID_nHSUS (1<<3) /* output 0/1 host active/suspended */
-#define FPGA_HID_MISO (1<<4) /* input */
-#define FPGA_HID_ATN (1<<5) /* input 0/1 chip idle/ATN */
-#define FPGA_HID_rsrvd (1<<6)
-#define FPGA_HID_RESETn (1<<7) /* output - 0/1 USAR reset/run */
-
-#ifndef OMAP_SDRAM_DEVICE
-#define OMAP_SDRAM_DEVICE D256M_1X16_4B
-#endif
-
-#define OMAP1510P1_IMIF_PRI_VALUE 0x00
-#define OMAP1510P1_EMIFS_PRI_VALUE 0x00
-#define OMAP1510P1_EMIFF_PRI_VALUE 0x00
-
-/*
- * These definitions define an area of FLASH set aside
- * for the use of MTD/JFFS2. This is the area of flash
- * that a JFFS2 filesystem will reside which is mounted
- * at boot with the "root=/dev/mtdblock/0 rw"
- * command line option. The flash address used here must
- * fall within the legal range defined by rrload for storing
- * the filesystem component. This address will be sufficiently
- * deep into the overall flash range to avoid the other
- * components also stored in flash such as the bootloader,
- * the bootloader params, and the kernel.
- * The SW2 settings for the map below are:
- * 1 off, 2 off, 3 on, 4 off.
- */
-
-/* Intel flash_0, partitioned as expected by rrload */
-#define OMAP_FLASH_0_BASE 0xD8000000
-#define OMAP_FLASH_0_START 0x00000000
-#define OMAP_FLASH_0_SIZE SZ_16M
-
-/* Intel flash_1, used for cramfs or other flash file systems */
-#define OMAP_FLASH_1_BASE 0xD9000000
-#define OMAP_FLASH_1_START 0x01000000
-#define OMAP_FLASH_1_SIZE SZ_16M
-
-/* The FPGA IRQ is cascaded through GPIO_13 */
-#define INT_FPGA (IH_GPIO_BASE + 13)
-
-/* IRQ Numbers for interrupts muxed through the FPGA */
-#define IH_FPGA_BASE IH_BOARD_BASE
-#define INT_FPGA_ATN (IH_FPGA_BASE + 0)
-#define INT_FPGA_ACK (IH_FPGA_BASE + 1)
-#define INT_FPGA2 (IH_FPGA_BASE + 2)
-#define INT_FPGA3 (IH_FPGA_BASE + 3)
-#define INT_FPGA4 (IH_FPGA_BASE + 4)
-#define INT_FPGA5 (IH_FPGA_BASE + 5)
-#define INT_FPGA6 (IH_FPGA_BASE + 6)
-#define INT_FPGA7 (IH_FPGA_BASE + 7)
-#define INT_FPGA8 (IH_FPGA_BASE + 8)
-#define INT_FPGA9 (IH_FPGA_BASE + 9)
-#define INT_FPGA10 (IH_FPGA_BASE + 10)
-#define INT_FPGA11 (IH_FPGA_BASE + 11)
-#define INT_FPGA12 (IH_FPGA_BASE + 12)
-#define INT_ETHER (IH_FPGA_BASE + 13)
-#define INT_FPGAUART1 (IH_FPGA_BASE + 14)
-#define INT_FPGAUART2 (IH_FPGA_BASE + 15)
-#define INT_FPGA_TS (IH_FPGA_BASE + 16)
-#define INT_FPGA17 (IH_FPGA_BASE + 17)
-#define INT_FPGA_CAM (IH_FPGA_BASE + 18)
-#define INT_FPGA_RTC_A (IH_FPGA_BASE + 19)
-#define INT_FPGA_RTC_B (IH_FPGA_BASE + 20)
-#define INT_FPGA_CD (IH_FPGA_BASE + 21)
-#define INT_FPGA22 (IH_FPGA_BASE + 22)
-#define INT_FPGA23 (IH_FPGA_BASE + 23)
-
-#define NR_FPGA_IRQS 24
-
-#define MAXIRQNUM (IH_FPGA_BASE + NR_FPGA_IRQS - 1)
-#define MAXFIQNUM MAXIRQNUM
-#define MAXSWINUM MAXIRQNUM
-
-#define NR_IRQS 256
-
-#ifndef __ASSEMBLY__
-void fpga_write(unsigned char val, int reg);
-unsigned char fpga_read(int reg);
-#endif
-
-#elif defined (CONFIG_ARCH_OMAP1610)
-
-/* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */
-#define OMAP1610_ETHR_BASE 0xE8000000
-#define OMAP1610_ETHR_SIZE SZ_4K
-#define OMAP1610_ETHR_START 0x04000000
-
-/* Intel STRATA NOR flash at CS3 */
-#define OMAP1610_NOR_FLASH_BASE 0xD8000000
-#define OMAP1610_NOR_FLASH_SIZE SZ_32M
-#define OMAP1610_NOR_FLASH_START 0x0C000000
-
-#define MAXIRQNUM (IH_BOARD_BASE)
-#define MAXFIQNUM MAXIRQNUM
-#define MAXSWINUM MAXIRQNUM
-
-#define NR_IRQS (MAXIRQNUM + 1)
-
-#else
-#error "Only OMAP1510 and OMAP1610 Innovator supported!"
-#endif
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-omap/omap-perseus2.h
- *
- * Copyright 2003 by Texas Instruments Incorporated
- * OMAP730 / P2-sample additions
- * Author: Jean Pihet
- *
- * Copyright (C) 2001 RidgeRun, Inc. (http://www.ridgerun.com)
- * Author: RidgeRun, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#ifndef __ASM_ARCH_OMAP_P2SAMPLE_H
-#define __ASM_ARCH_OMAP_P2SAMPLE_H
-
-#if defined(CONFIG_ARCH_OMAP730) && defined (CONFIG_MACH_OMAP_PERSEUS2)
-
-/*
- * NOTE: ALL DEFINITIONS IN THIS FILE NEED TO BE PREFIXED BY IDENTIFIER
- * P2SAMPLE_ since they are specific to the EVM and not the chip.
- */
-
-/* ---------------------------------------------------------------------------
- * OMAP730 Debug Board FPGA
- * ---------------------------------------------------------------------------
- *
- */
-
-/* maps in the FPGA registers and the ETHR registers */
-#define OMAP730_FPGA_BASE 0xE8000000 /* VA */
-#define OMAP730_FPGA_SIZE SZ_4K /* SIZE */
-#define OMAP730_FPGA_START 0x04000000 /* PA */
-
-#define OMAP730_FPGA_ETHR_START OMAP730_FPGA_START
-#define OMAP730_FPGA_ETHR_BASE OMAP730_FPGA_BASE
-#define OMAP730_FPGA_FPGA_REV (OMAP730_FPGA_BASE + 0x10) /* FPGA Revision */
-#define OMAP730_FPGA_BOARD_REV (OMAP730_FPGA_BASE + 0x12) /* Board Revision */
-#define OMAP730_FPGA_GPIO (OMAP730_FPGA_BASE + 0x14) /* GPIO outputs */
-#define OMAP730_FPGA_LEDS (OMAP730_FPGA_BASE + 0x16) /* LEDs outputs */
-#define OMAP730_FPGA_MISC_INPUTS (OMAP730_FPGA_BASE + 0x18) /* Misc inputs */
-#define OMAP730_FPGA_LAN_STATUS (OMAP730_FPGA_BASE + 0x1A) /* LAN Status line */
-#define OMAP730_FPGA_LAN_RESET (OMAP730_FPGA_BASE + 0x1C) /* LAN Reset line */
-
-// LEDs definition on debug board (16 LEDs)
-#define OMAP730_FPGA_LED_CLAIMRELEASE (1 << 15)
-#define OMAP730_FPGA_LED_STARTSTOP (1 << 14)
-#define OMAP730_FPGA_LED_HALTED (1 << 13)
-#define OMAP730_FPGA_LED_IDLE (1 << 12)
-#define OMAP730_FPGA_LED_TIMER (1 << 11)
-// cpu0 load-meter LEDs
-#define OMAP730_FPGA_LOAD_METER (1 << 0) // A bit of fun on our board ...
-#define OMAP730_FPGA_LOAD_METER_SIZE 11
-#define OMAP730_FPGA_LOAD_METER_MASK ((1 << OMAP730_FPGA_LOAD_METER_SIZE) - 1)
-
-#ifndef OMAP_SDRAM_DEVICE
-#define OMAP_SDRAM_DEVICE D256M_1X16_4B
-#endif
-
-
-/*
- * These definitions define an area of FLASH set aside
- * for the use of MTD/JFFS2. This is the area of flash
- * that a JFFS2 filesystem will reside which is mounted
- * at boot with the "root=/dev/mtdblock/0 rw"
- * command line option.
- */
-
-/* Intel flash_0, partitioned as expected by rrload */
-#define OMAP_FLASH_0_BASE 0xD8000000 /* VA */
-#define OMAP_FLASH_0_START 0x00000000 /* PA */
-#define OMAP_FLASH_0_SIZE SZ_32M
-
-/* 2.9.6 Traffic Controller Memory Interface Registers */
-#define OMAP_FLASH_CFG_0 0xfffecc10
-#define OMAP_FLASH_ACFG_0 0xfffecc50
-
-#define OMAP_FLASH_CFG_1 0xfffecc14
-#define OMAP_FLASH_ACFG_1 0xfffecc54
-
-/*
- * Configuration Registers
- */
-#define PERSEUS2_CONFIG_BASE 0xfffe1000
-#define PERSEUS2_IO_CONF_0 0xfffe1070
-#define PERSEUS2_IO_CONF_1 0xfffe1074
-#define PERSEUS2_IO_CONF_2 0xfffe1078
-#define PERSEUS2_IO_CONF_3 0xfffe107c
-#define PERSEUS2_IO_CONF_4 0xfffe1080
-#define PERSEUS2_IO_CONF_5 0xfffe1084
-#define PERSEUS2_IO_CONF_6 0xfffe1088
-#define PERSEUS2_IO_CONF_7 0xfffe108c
-#define PERSEUS2_IO_CONF_8 0xfffe1090
-#define PERSEUS2_IO_CONF_9 0xfffe1094
-#define PERSEUS2_IO_CONF_10 0xfffe1098
-#define PERSEUS2_IO_CONF_11 0xfffe109c
-#define PERSEUS2_IO_CONF_12 0xfffe10a0
-#define PERSEUS2_IO_CONF_13 0xfffe10a4
-
-#define PERSEUS2_MODE_1 0xfffe1010
-#define PERSEUS2_MODE_2 0xfffe1014
-
-/* CSMI specials: in terms of base + offset */
-#define PERSEUS2_MODE2_OFFSET 0x14
-
-/* DSP control: ICR registers */
-#define ICR_BASE 0xfffbb800
-/* M_CTL */
-#define DSP_M_CTL ((volatile __u16 *)0xfffbb804)
-/* DSP control: MMU registers */
-#define DSP_MMU_BASE ((volatile __u16 *)0xfffed200)
-
-/* The Ethernet Controller IRQ is cascaded to MPU_EXT_nIRQ througb the FPGA */
-#define INT_ETHER INT_730_MPU_EXT_NIRQ
-
-#define MAXIRQNUM IH_BOARD_BASE
-#define MAXFIQNUM MAXIRQNUM
-#define MAXSWINUM MAXIRQNUM
-
-#define NR_IRQS (MAXIRQNUM + 1)
-
-#ifndef __ASSEMBLY__
-void fpga_write(unsigned char val, int reg);
-unsigned char fpga_read(int reg);
-#endif
-
-/* PCC_UPLD control register: OMAP730 */
-#define PCC_UPLD_CTRL_REG_BASE (0xfffe0900)
-#define PCC_UPLD_CTRL_REG (volatile __u16 *)(PCC_UPLD_CTRL_REG_BASE + 0x00)
-
-#else
-#error "Only OMAP730 Perseus2 supported!"
-#endif
-
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-pxa/ide.h
- *
- * Author: George Davis
- * Created: Jan 10, 2002
- * Copyright: MontaVista Software Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *
- * Originally based upon linux/include/asm-arm/arch-sa1100/ide.h
- *
- */
-
-#include <asm/irq.h>
-#include <asm/hardware.h>
-#include <asm/mach-types.h>
-
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
- unsigned long reg = data_port;
- int i;
- int regincr = 1;
-
- memset(hw, 0, sizeof(*hw));
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += regincr;
- }
-
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
-
- if (irq)
- *irq = 0;
-}
-
-
-/*
- * Register the standard ports for this architecture with the IDE driver.
- */
-static __inline__ void
-ide_init_default_hwifs(void)
-{
- /* Nothing to declare... */
-}
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-pxa/keyboard.h
- *
- * This file contains the architecture specific keyboard definitions
- */
-
-#ifndef _PXA_KEYBOARD_H
-#define _PXA_KEYBOARD_H
-
-#include <asm/mach-types.h>
-#include <asm/hardware.h>
-
-extern struct kbd_ops_struct *kbd_ops;
-
-#define kbd_disable_irq() do { } while(0);
-#define kbd_enable_irq() do { } while(0);
-
-extern int sa1111_kbd_init_hw(void);
-
-static inline void kbd_init_hw(void)
-{
- if (machine_is_lubbock())
- sa1111_kbd_init_hw();
-}
-
-
-#endif /* _PXA_KEYBOARD_H */
-
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-rpc/ide.h
- *
- * Copyright (C) 1997 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Modifications:
- * 29-07-1998 RMK Major re-work of IDE architecture specific code
- */
-#include <asm/irq.h>
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
- unsigned long reg = data_port;
- int i;
-
- memset(hw, 0, sizeof(*hw));
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
- if (irq)
- *irq = 0;
-}
-
-/*
- * This registers the standard ports for this architecture with the IDE
- * driver.
- */
-static __inline__ void
-ide_init_default_hwifs(void)
-{
- hw_regs_t hw;
-
- ide_init_hwif_ports(&hw, 0x1f0, 0x3f6, NULL);
- hw.irq = IRQ_HARDDISK;
- ide_register_hw(&hw, NULL);
-}
+++ /dev/null
-/* linux/include/asm-arm/arch-s3c2410/ide.h
- *
- * Copyright (C) 1997 Russell King
- * Copyright (C) 2003 Simtec Electronics
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Modifications:
- * 29-07-1998 RMK Major re-work of IDE architecture specific code
- * 16-05-2003 BJD Changed to work with BAST IDE ports
- * 04-09-2003 BJD Modifications for V2.6
- */
-
-#ifndef __ASM_ARCH_IDE_H
-#define __ASM_ARCH_IDE_H
-
-#include <asm/irq.h>
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
- unsigned long reg = data_port;
- int i;
-
- memset(hw, 0, sizeof(*hw));
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
- if (irq)
- *irq = 0;
-}
-
-/* we initialise our ide devices from the main ide core, due to problems
- * with doing it in this function
-*/
-
-#define ide_init_default_hwifs() do { } while(0)
-
-#endif /* __ASM_ARCH_IDE_H */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-sa1100/collie.h
- *
- * This file contains the hardware specific definitions for Assabet
- * Only include this file from SA1100-specific files.
- *
- * ChangeLog:
- * 04-06-2001 Lineo Japan, Inc.
- * 04-16-2001 SHARP Corporation
- * 07-07-2002 Chris Larson <clarson@digi.com>
- *
- */
-#ifndef __ASM_ARCH_COLLIE_H
-#define __ASM_ARCH_COLLIE_H
-
-#include <linux/config.h>
-
-#define CF_BUF_CTRL_BASE 0xF0800000
-#define COLLIE_SCP_REG(adr) (*(volatile unsigned short*)(CF_BUF_CTRL_BASE+(adr)))
-#define COLLIE_SCP_MCR 0x00
-#define COLLIE_SCP_CDR 0x04
-#define COLLIE_SCP_CSR 0x08
-#define COLLIE_SCP_CPR 0x0C
-#define COLLIE_SCP_CCR 0x10
-#define COLLIE_SCP_IRR 0x14
-#define COLLIE_SCP_IRM 0x14
-#define COLLIE_SCP_IMR 0x18
-#define COLLIE_SCP_ISR 0x1C
-#define COLLIE_SCP_GPCR 0x20
-#define COLLIE_SCP_GPWR 0x24
-#define COLLIE_SCP_GPRR 0x28
-#define COLLIE_SCP_REG_MCR COLLIE_SCP_REG(COLLIE_SCP_MCR)
-#define COLLIE_SCP_REG_CDR COLLIE_SCP_REG(COLLIE_SCP_CDR)
-#define COLLIE_SCP_REG_CSR COLLIE_SCP_REG(COLLIE_SCP_CSR)
-#define COLLIE_SCP_REG_CPR COLLIE_SCP_REG(COLLIE_SCP_CPR)
-#define COLLIE_SCP_REG_CCR COLLIE_SCP_REG(COLLIE_SCP_CCR)
-#define COLLIE_SCP_REG_IRR COLLIE_SCP_REG(COLLIE_SCP_IRR)
-#define COLLIE_SCP_REG_IRM COLLIE_SCP_REG(COLLIE_SCP_IRM)
-#define COLLIE_SCP_REG_IMR COLLIE_SCP_REG(COLLIE_SCP_IMR)
-#define COLLIE_SCP_REG_ISR COLLIE_SCP_REG(COLLIE_SCP_ISR)
-#define COLLIE_SCP_REG_GPCR COLLIE_SCP_REG(COLLIE_SCP_GPCR)
-#define COLLIE_SCP_REG_GPWR COLLIE_SCP_REG(COLLIE_SCP_GPWR)
-#define COLLIE_SCP_REG_GPRR COLLIE_SCP_REG(COLLIE_SCP_GPRR)
-
-#define COLLIE_SCP_GPCR_PA19 ( 1 << 9 )
-#define COLLIE_SCP_GPCR_PA18 ( 1 << 8 )
-#define COLLIE_SCP_GPCR_PA17 ( 1 << 7 )
-#define COLLIE_SCP_GPCR_PA16 ( 1 << 6 )
-#define COLLIE_SCP_GPCR_PA15 ( 1 << 5 )
-#define COLLIE_SCP_GPCR_PA14 ( 1 << 4 )
-#define COLLIE_SCP_GPCR_PA13 ( 1 << 3 )
-#define COLLIE_SCP_GPCR_PA12 ( 1 << 2 )
-#define COLLIE_SCP_GPCR_PA11 ( 1 << 1 )
-
-#define COLLIE_SCP_CHARGE_ON COLLIE_SCP_GPCR_PA11
-#define COLLIE_SCP_DIAG_BOOT1 COLLIE_SCP_GPCR_PA12
-#define COLLIE_SCP_DIAG_BOOT2 COLLIE_SCP_GPCR_PA13
-#define COLLIE_SCP_MUTE_L COLLIE_SCP_GPCR_PA14
-#define COLLIE_SCP_MUTE_R COLLIE_SCP_GPCR_PA15
-#define COLLIE_SCP_5VON COLLIE_SCP_GPCR_PA16
-#define COLLIE_SCP_AMP_ON COLLIE_SCP_GPCR_PA17
-#define COLLIE_SCP_VPEN COLLIE_SCP_GPCR_PA18
-#define COLLIE_SCP_LB_VOL_CHG COLLIE_SCP_GPCR_PA19
-
-#define COLLIE_SCP_IO_DIR ( COLLIE_SCP_CHARGE_ON | COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R | \
- COLLIE_SCP_5VON | COLLIE_SCP_AMP_ON | COLLIE_SCP_VPEN | \
- COLLIE_SCP_LB_VOL_CHG )
-#define COLLIE_SCP_IO_OUT ( COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R | COLLIE_SCP_VPEN | \
- COLLIE_SCP_CHARGE_ON )
-
-/* GPIOs for which the generic definition doesn't say much */
-
-#define COLLIE_GPIO_ON_KEY GPIO_GPIO (0)
-#define COLLIE_GPIO_AC_IN GPIO_GPIO (1)
-#define COLLIE_GPIO_CF_IRQ GPIO_GPIO (14)
-#define COLLIE_GPIO_nREMOCON_INT GPIO_GPIO (15)
-#define COLLIE_GPIO_UCB1x00_RESET GPIO_GPIO (16)
-#define COLLIE_GPIO_CO GPIO_GPIO (20)
-#define COLLIE_GPIO_MCP_CLK GPIO_GPIO (21)
-#define COLLIE_GPIO_CF_CD GPIO_GPIO (22)
-#define COLLIE_GPIO_UCB1x00_IRQ GPIO_GPIO (23)
-#define COLLIE_GPIO_WAKEUP GPIO_GPIO (24)
-#define COLLIE_GPIO_GA_INT GPIO_GPIO (25)
-#define COLLIE_GPIO_MAIN_BAT_LOW GPIO_GPIO (26)
-
-/* Interrupts */
-
-#define COLLIE_IRQ_GPIO_ON_KEY IRQ_GPIO0
-#define COLLIE_IRQ_GPIO_AC_IN IRQ_GPIO1
-#define COLLIE_IRQ_GPIO_CF_IRQ IRQ_GPIO14
-#define COLLIE_IRQ_GPIO_nREMOCON_INT IRQ_GPIO15
-#define COLLIE_IRQ_GPIO_CO IRQ_GPIO20
-#define COLLIE_IRQ_GPIO_CF_CD IRQ_GPIO22
-#define COLLIE_IRQ_GPIO_UCB1x00_IRQ IRQ_GPIO23
-#define COLLIE_IRQ_GPIO_WAKEUP IRQ_GPIO24
-#define COLLIE_IRQ_GPIO_GA_INT IRQ_GPIO25
-#define COLLIE_IRQ_GPIO_MAIN_BAT_LOW IRQ_GPIO26
-
-#define COLLIE_LCM_IRQ_GPIO_RTS IRQ_LOCOMO_GPIO0
-#define COLLIE_LCM_IRQ_GPIO_CTS IRQ_LOCOMO_GPIO1
-#define COLLIE_LCM_IRQ_GPIO_DSR IRQ_LOCOMO_GPIO2
-#define COLLIE_LCM_IRQ_GPIO_DTR IRQ_LOCOMO_GPIO3
-#define COLLIE_LCM_IRQ_GPIO_nSD_DETECT IRQ_LOCOMO_GPIO13
-#define COLLIE_LCM_IRQ_GPIO_nSD_WP IRQ_LOCOMO_GPIO14
-
-/*
- * Flash Memory mappings
- *
- */
-
-#define FLASH_MEM_BASE 0xe8ffc000
-#define FLASH_DATA(adr) (*(volatile unsigned int*)(FLASH_MEM_BASE+(adr)))
-#define FLASH_DATA_F(adr) (*(volatile float32 *)(FLASH_MEM_BASE+(adr)))
-#define FLASH_MAGIC_CHG(a,b,c,d) ( ( d << 24 ) | ( c << 16 ) | ( b << 8 ) | a )
-
-// COMADJ
-#define FLASH_COMADJ_MAJIC FLASH_MAGIC_CHG('C','M','A','D')
-#define FLASH_COMADJ_MAGIC_ADR 0x00
-#define FLASH_COMADJ_DATA_ADR 0x04
-
-// TOUCH PANEL
-#define FLASH_TOUCH_MAJIC FLASH_MAGIC_CHG('T','U','C','H')
-#define FLASH_TOUCH_MAGIC_ADR 0x1C
-#define FLASH_TOUCH_XP_DATA_ADR 0x20
-#define FLASH_TOUCH_YP_DATA_ADR 0x24
-#define FLASH_TOUCH_XD_DATA_ADR 0x28
-#define FLASH_TOUCH_YD_DATA_ADR 0x2C
-
-// AD
-#define FLASH_AD_MAJIC FLASH_MAGIC_CHG('B','V','A','D')
-#define FLASH_AD_MAGIC_ADR 0x30
-#define FLASH_AD_DATA_ADR 0x34
-
-/* GPIO's on the TC35143AF (Toshiba Analog Frontend) */
-#define COLLIE_TC35143_GPIO_VERSION0 UCB_IO_0 /* GPIO0=Version */
-#define COLLIE_TC35143_GPIO_TBL_CHK UCB_IO_1 /* GPIO1=TBL_CHK */
-#define COLLIE_TC35143_GPIO_VPEN_ON UCB_IO_2 /* GPIO2=VPNE_ON */
-#define COLLIE_TC35143_GPIO_IR_ON UCB_IO_3 /* GPIO3=IR_ON */
-#define COLLIE_TC35143_GPIO_AMP_ON UCB_IO_4 /* GPIO4=AMP_ON */
-#define COLLIE_TC35143_GPIO_VERSION1 UCB_IO_5 /* GPIO5=Version */
-#define COLLIE_TC35143_GPIO_FS8KLPF UCB_IO_5 /* GPIO5=fs 8k LPF */
-#define COLLIE_TC35143_GPIO_BUZZER_BIAS UCB_IO_6 /* GPIO6=BUZZER BIAS */
-#define COLLIE_TC35143_GPIO_MBAT_ON UCB_IO_7 /* GPIO7=MBAT_ON */
-#define COLLIE_TC35143_GPIO_BBAT_ON UCB_IO_8 /* GPIO8=BBAT_ON */
-#define COLLIE_TC35143_GPIO_TMP_ON UCB_IO_9 /* GPIO9=TMP_ON */
-#define COLLIE_TC35143_GPIO_IN ( UCB_IO_0 | UCB_IO_2 | UCB_IO_5 )
-#define COLLIE_TC35143_GPIO_OUT ( UCB_IO_1 | UCB_IO_3 | UCB_IO_4 | UCB_IO_6 | \
- UCB_IO_7 | UCB_IO_8 | UCB_IO_9 )
-
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-sa1100/keyboard.h
- * Created 16 Dec 1999 by Nicolas Pitre <nico@cam.org>
- * This file contains the SA1100 architecture specific keyboard definitions
- */
-#ifndef _SA1100_KEYBOARD_H
-#define _SA1100_KEYBOARD_H
-
-#include <linux/config.h>
-#include <asm/mach-types.h>
-
-extern void gc_kbd_init_hw(void);
-extern void smartio_kbd_init_hw(void);
-
-static inline void kbd_init_hw(void)
-{
- if (machine_is_graphicsclient())
- gc_kbd_init_hw();
- if (machine_is_adsbitsy())
- smartio_kbd_init_hw();
-}
-
-#endif /* _SA1100_KEYBOARD_H */
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-shark/ide.h
- *
- * by Alexander Schulz
- *
- * derived from:
- * linux/include/asm-arm/arch-ebsa285/ide.h
- * Copyright (c) 1998 Russell King
- */
-
-#include <asm/irq.h>
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
-{
- unsigned long reg = data_port;
- int i;
-
- memset(hw, 0, sizeof(*hw));
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
- if (irq)
- *irq = 0;
-}
-
-/*
- * This registers the standard ports for this architecture with the IDE
- * driver.
- */
-static __inline__ void
-ide_init_default_hwifs(void)
-{
- hw_regs_t hw;
-
- ide_init_hwif_ports(&hw, 0x1f0, 0x3f6, NULL);
- hw.irq = 14;
- ide_register_hw(&hw,NULL);
-}
-
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-shark/keyboard.h
- * by Alexander Schulz
- *
- * Derived from linux/include/asm-arm/arch-ebsa285/keyboard.h
- * (C) 1998 Russell King
- * (C) 1998 Phil Blundell
- */
-#include <linux/config.h>
-#include <linux/ioport.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/system.h>
-
-#define KEYBOARD_IRQ IRQ_ISA_KEYBOARD
-#define NR_SCANCODES 128
-
-#define kbd_disable_irq() do { } while (0)
-#define kbd_enable_irq() do { } while (0)
-
-extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
-extern int pckbd_getkeycode(unsigned int scancode);
-extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,
- char raw_mode);
-extern char pckbd_unexpected_up(unsigned char keycode);
-extern void pckbd_leds(unsigned char leds);
-extern void pckbd_init_hw(void);
-extern unsigned char pckbd_sysrq_xlate[128];
-
-static inline void kbd_init_hw(void)
-{
- k_setkeycode = pckbd_setkeycode;
- k_getkeycode = pckbd_getkeycode;
- k_translate = pckbd_translate;
- k_unexpected_up = pckbd_unexpected_up;
- k_leds = pckbd_leds;
-#ifdef CONFIG_MAGIC_SYSRQ
- k_sysrq_key = 0x54;
- k_sysrq_xlate = pckbd_sysrq_xlate;
-#endif
- pckbd_init_hw();
-}
-
-/*
- * PC Keyboard specifics
- */
-
-/* resource allocation */
-#define kbd_request_region() request_region(0x60, 16, "keyboard")
-#define kbd_request_irq(handler) request_irq(KEYBOARD_IRQ, handler, 0, \
- "keyboard", NULL)
-
-/* How to access the keyboard macros on this platform. */
-#define kbd_read_input() inb(KBD_DATA_REG)
-#define kbd_read_status() inb(KBD_STATUS_REG)
-#define kbd_write_output(val) outb(val, KBD_DATA_REG)
-#define kbd_write_command(val) outb(val, KBD_CNTL_REG)
-
-/* Some stoneage hardware needs delays after some operations. */
-#define kbd_pause() do { } while(0)
-
-/*
- * Machine specific bits for the PS/2 driver
- */
-#define aux_request_irq(hand, dev_id) \
- request_irq(AUX_IRQ, hand, SA_SHIRQ, "PS/2 Mouse", dev_id)
-
-#define aux_free_irq(dev_id) free_irq(AUX_IRQ, dev_id)
+++ /dev/null
-/*
- * linux/include/asm-arm/arch-tbox/ide.h
- */
+++ /dev/null
-/*
- * linux/include/asm-arm/hardware/clock.h
- *
- * Copyright (C) 2004 ARM Limited.
- * Written by Deep Blue Solutions Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef ASMARM_CLOCK_H
-#define ASMARM_CLOCK_H
-
-struct device;
-
-/*
- * The base API.
- */
-
-
-/*
- * struct clk - an machine class defined object / cookie.
- */
-struct clk;
-
-/**
- * clk_get - lookup and obtain a reference to a clock producer.
- * @dev: device for clock "consumer"
- * @id: device ID
- *
- * Returns a struct clk corresponding to the clock producer, or
- * valid IS_ERR() condition containing errno.
- */
-struct clk *clk_get(struct device *dev, const char *id);
-
-/**
- * clk_enable - inform the system when the clock source should be running.
- * @clk: clock source
- *
- * If the clock can not be enabled/disabled, this should return success.
- *
- * Returns success (0) or negative errno.
- */
-int clk_enable(struct clk *clk);
-
-/**
- * clk_disable - inform the system when the clock source is no longer required.
- * @clk: clock source
- */
-void clk_disable(struct clk *clk);
-
-/**
- * clk_use - increment the use count
- * @clk: clock source
- *
- * Returns success (0) or negative errno.
- */
-int clk_use(struct clk *clk);
-
-/**
- * clk_unuse - decrement the use count
- * @clk: clock source
- */
-void clk_unuse(struct clk *clk);
-
-/**
- * clk_get_rate - obtain the current clock rate for a clock source.
- * This is only valid once the clock source has been enabled.
- * @clk: clock source
- */
-unsigned long clk_get_rate(struct clk *clk);
-
-/**
- * clk_put - "free" the clock source
- * @clk: clock source
- */
-void clk_put(struct clk *clk);
-
-
-/*
- * The remaining APIs are optional for machine class support.
- */
-
-
-/**
- * clk_round_rate - adjust a rate to the exact rate a clock can provide
- * @clk: clock source
- * @rate: desired clock rate in kHz
- *
- * Returns rounded clock rate, or negative errno.
- */
-long clk_round_rate(struct clk *clk, unsigned long rate);
-
-/**
- * clk_set_rate - set the clock rate for a clock source
- * @clk: clock source
- * @rate: desired clock rate in kHz
- *
- * Returns success (0) or negative errno.
- */
-int clk_set_rate(struct clk *clk, unsigned long rate);
-
-/**
- * clk_set_parent - set the parent clock source for this clock
- * @clk: clock source
- * @parent: parent clock source
- *
- * Returns success (0) or negative errno.
- */
-int clk_set_parent(struct clk *clk, struct clk *parent);
-
-/**
- * clk_get_parent - get the parent clock source for this clock
- * @clk: clock source
- *
- * Returns struct clk corresponding to parent clock source, or
- * valid IS_ERR() condition containing errno.
- */
-struct clk *clk_get_parent(struct clk *clk);
-
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/hardware/locomo.h
- *
- * This file contains the definitions for the LoCoMo G/A Chip
- *
- * (C) Copyright 2004 John Lenz
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Based on sa1111.h
- */
-#ifndef _ASM_ARCH_LOCOMO
-#define _ASM_ARCH_LOCOMO
-
-#define locomo_writel(val,addr) ({ *(volatile u16 *)(addr) = (val); })
-#define locomo_readl(addr) (*(volatile u16 *)(addr))
-
-/* LOCOMO version */
-#define LOCOMO_VER 0x00
-
-/* Pin status */
-#define LOCOMO_ST 0x04
-
-/* Pin status */
-#define LOCOMO_C32K 0x08
-
-/* Interrupt controller */
-#define LOCOMO_ICR 0x0C
-
-/* MCS decoder for boot selecting */
-#define LOCOMO_MCSX0 0x10
-#define LOCOMO_MCSX1 0x14
-#define LOCOMO_MCSX2 0x18
-#define LOCOMO_MCSX3 0x1c
-
-/* Touch panel controller */
-#define LOCOMO_ASD 0x20 /* AD start delay */
-#define LOCOMO_HSD 0x28 /* HSYS delay */
-#define LOCOMO_HSC 0x2c /* HSYS period */
-#define LOCOMO_TADC 0x30 /* tablet ADC clock */
-
-/* TFT signal */
-#define LOCOMO_TC 0x38 /* TFT control signal */
-#define LOCOMO_CPSD 0x3c /* CPS delay */
-
-/* Key controller */
-#define LOCOMO_KIB 0x40 /* KIB level */
-#define LOCOMO_KSC 0x44 /* KSTRB control */
-#define LOCOMO_KCMD 0x48 /* KSTRB command */
-#define LOCOMO_KIC 0x4c /* Key interrupt */
-
-/* Audio clock */
-#define LOCOMO_ACC 0x54
-
-/* SPI interface */
-#define LOCOMO_SPIMD 0x60 /* SPI mode setting */
-#define LOCOMO_SPICT 0x64 /* SPI mode control */
-#define LOCOMO_SPIST 0x68 /* SPI status */
-#define LOCOMO_SPIIS 0x70 /* SPI interrupt status */
-#define LOCOMO_SPIWE 0x74 /* SPI interrupt status write enable */
-#define LOCOMO_SPIIE 0x78 /* SPI interrupt enable */
-#define LOCOMO_SPIIR 0x7c /* SPI interrupt request */
-#define LOCOMO_SPITD 0x80 /* SPI transfer data write */
-#define LOCOMO_SPIRD 0x84 /* SPI receive data read */
-#define LOCOMO_SPITS 0x88 /* SPI transfer data shift */
-#define LOCOMO_SPIRS 0x8C /* SPI receive data shift */
-
-#define LOCOMO_SPI_TEND (1 << 3) /* Transfer end bit */
-#define LOCOMO_SPI_OVRN (1 << 2) /* Over Run bit */
-#define LOCOMO_SPI_RFW (1 << 1) /* write buffer bit */
-#define LOCOMO_SPI_RFR (1) /* read buffer bit */
-
-/* GPIO */
-#define LOCOMO_GPD 0x90 /* GPIO direction */
-#define LOCOMO_GPE 0x94 /* GPIO input enable */
-#define LOCOMO_GPL 0x98 /* GPIO level */
-#define LOCOMO_GPO 0x9c /* GPIO out data setteing */
-#define LOCOMO_GRIE 0xa0 /* GPIO rise detection */
-#define LOCOMO_GFIE 0xa4 /* GPIO fall detection */
-#define LOCOMO_GIS 0xa8 /* GPIO edge detection status */
-#define LOCOMO_GWE 0xac /* GPIO status write enable */
-#define LOCOMO_GIE 0xb0 /* GPIO interrupt enable */
-#define LOCOMO_GIR 0xb4 /* GPIO interrupt request */
-
-#define LOCOMO_GPIO0 (1<<0)
-#define LOCOMO_GPIO1 (1<<1)
-#define LOCOMO_GPIO2 (1<<2)
-#define LOCOMO_GPIO3 (1<<3)
-#define LOCOMO_GPIO4 (1<<4)
-#define LOCOMO_GPIO5 (1<<5)
-#define LOCOMO_GPIO6 (1<<6)
-#define LOCOMO_GPIO7 (1<<7)
-#define LOCOMO_GPIO8 (1<<8)
-#define LOCOMO_GPIO9 (1<<9)
-#define LOCOMO_GPIO10 (1<<10)
-#define LOCOMO_GPIO11 (1<<11)
-#define LOCOMO_GPIO12 (1<<12)
-#define LOCOMO_GPIO13 (1<<13)
-#define LOCOMO_GPIO14 (1<<14)
-#define LOCOMO_GPIO15 (1<<15)
-
-/* Front light adjustment controller */
-#define LOCOMO_ALS 0xc8 /* Adjust light cycle */
-#define LOCOMO_ALD 0xcc /* Adjust light duty */
-
-/* PCM audio interface */
-#define LOCOMO_PAIF 0xd0
-
-/* Long time timer */
-#define LOCOMO_LTC 0xd8 /* LTC interrupt setting */
-#define LOCOMO_LTINT 0xdc /* LTC interrupt */
-
-/* DAC control signal for LCD (COMADJ ) */
-#define LOCOMO_DAC 0xe0
-
-/* DAC control */
-#define LOCOMO_DAC_SCLOEB 0x08 /* SCL pin output data */
-#define LOCOMO_DAC_TEST 0x04 /* Test bit */
-#define LOCOMO_DAC_SDA 0x02 /* SDA pin level (read-only) */
-#define LOCOMO_DAC_SDAOEB 0x01 /* SDA pin output data */
-
-/* LED controller */
-#define LOCOMO_LPT0 0xe8 /* LEDPWM0 timer */
-#define LOCOMO_LPT1 0xec /* LEDPWM1 timer */
-
-#define LOCOMO_LPT_TOFH 0x80 /* */
-#define LOCOMO_LPT_TOFL 0x08 /* */
-#define LOCOMO_LPT_TOH(TOH) ((TOH & 0x7) << 4) /* */
-#define LOCOMO_LPT_TOL(TOL) ((TOL & 0x7)) /* */
-
-/* Audio clock */
-#define LOCOMO_ACC_XON 0x80 /* */
-#define LOCOMO_ACC_XEN 0x40 /* */
-#define LOCOMO_ACC_XSEL0 0x00 /* */
-#define LOCOMO_ACC_XSEL1 0x20 /* */
-#define LOCOMO_ACC_MCLKEN 0x10 /* */
-#define LOCOMO_ACC_64FSEN 0x08 /* */
-#define LOCOMO_ACC_CLKSEL000 0x00 /* mclk 2 */
-#define LOCOMO_ACC_CLKSEL001 0x01 /* mclk 3 */
-#define LOCOMO_ACC_CLKSEL010 0x02 /* mclk 4 */
-#define LOCOMO_ACC_CLKSEL011 0x03 /* mclk 6 */
-#define LOCOMO_ACC_CLKSEL100 0x04 /* mclk 8 */
-#define LOCOMO_ACC_CLKSEL101 0x05 /* mclk 12 */
-
-/* PCM audio interface */
-#define LOCOMO_PAIF_SCINV 0x20 /* */
-#define LOCOMO_PAIF_SCEN 0x10 /* */
-#define LOCOMO_PAIF_LRCRST 0x08 /* */
-#define LOCOMO_PAIF_LRCEVE 0x04 /* */
-#define LOCOMO_PAIF_LRCINV 0x02 /* */
-#define LOCOMO_PAIF_LRCEN 0x01 /* */
-
-/* GPIO */
-#define LOCOMO_GPIO(Nb) (0x01 << (Nb)) /* LoCoMo GPIO [0...15] */
-#define LOCOMO_GPIO_RTS LOCOMO_GPIO(0) /* LoCoMo GPIO [0] */
-#define LOCOMO_GPIO_CTS LOCOMO_GPIO(1) /* LoCoMo GPIO [1] */
-#define LOCOMO_GPIO_DSR LOCOMO_GPIO(2) /* LoCoMo GPIO [2] */
-#define LOCOMO_GPIO_DTR LOCOMO_GPIO(3) /* LoCoMo GPIO [3] */
-#define LOCOMO_GPIO_LCD_VSHA_ON LOCOMO_GPIO(4) /* LoCoMo GPIO [4] */
-#define LOCOMO_GPIO_LCD_VSHD_ON LOCOMO_GPIO(5) /* LoCoMo GPIO [5] */
-#define LOCOMO_GPIO_LCD_VEE_ON LOCOMO_GPIO(6) /* LoCoMo GPIO [6] */
-#define LOCOMO_GPIO_LCD_MOD LOCOMO_GPIO(7) /* LoCoMo GPIO [7] */
-#define LOCOMO_GPIO_DAC_ON LOCOMO_GPIO(8) /* LoCoMo GPIO [8] */
-#define LOCOMO_GPIO_FL_VR LOCOMO_GPIO(9) /* LoCoMo GPIO [9] */
-#define LOCOMO_GPIO_DAC_SDATA LOCOMO_GPIO(10) /* LoCoMo GPIO [10] */
-#define LOCOMO_GPIO_DAC_SCK LOCOMO_GPIO(11) /* LoCoMo GPIO [11] */
-#define LOCOMO_GPIO_DAC_SLOAD LOCOMO_GPIO(12) /* LoCoMo GPIO [12] */
-
-extern struct bus_type locomo_bus_type;
-
-struct locomo_dev {
- struct device dev;
- unsigned int devid;
- struct resource res;
- void *mapbase;
- unsigned int irq[1];
- u64 dma_mask;
-};
-
-#define LOCOMO_DEV(_d) container_of((_d), struct locomo_dev, dev)
-
-#define locomo_get_drvdata(d) dev_get_drvdata(&(d)->dev)
-#define locomo_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, p)
-
-struct locomo_driver {
- struct device_driver drv;
- unsigned int devid;
- int (*probe)(struct locomo_dev *);
- int (*remove)(struct locomo_dev *);
- int (*suspend)(struct locomo_dev *, u32);
- int (*resume)(struct locomo_dev *);
-};
-
-#define LOCOMO_DRV(_d) container_of((_d), struct locomo_driver, drv)
-
-#define LOCOMO_DRIVER_NAME(_ldev) ((_ldev)->dev.driver->name)
-
-void locomo_lcd_power(struct locomo_dev *, int, unsigned int);
-
-int locomo_driver_register(struct locomo_driver *);
-void locomo_driver_unregister(struct locomo_driver *);
-
-#endif
+++ /dev/null
-/*
- * linux/include/asm-arm/mach/time.h
- *
- * Copyright (C) 2004 MontaVista Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef __ASM_ARM_MACH_TIME_H
-#define __ASM_ARM_MACH_TIME_H
-
-extern void (*init_arch_time)(void);
-
-extern int (*set_rtc)(void);
-extern unsigned long(*gettimeoffset)(void);
-
-void timer_tick(struct pt_regs *);
-
-#endif
+++ /dev/null
-#ifndef _ARM_RMAP_H
-#define _ARM_RMAP_H
-
-#include <asm-generic/rmap.h>
-
-#endif /* _ARM_RMAP_H */
+++ /dev/null
-/*
- * linux/include/asm-arm/vfp.h
- *
- * VFP register definitions.
- * First, the standard VFP set.
- */
-
-#define FPSID cr0
-#define FPSCR cr1
-#define FPEXC cr8
-
-/* FPSID bits */
-#define FPSID_IMPLEMENTER_BIT (24)
-#define FPSID_IMPLEMENTER_MASK (0xff << FPSID_IMPLEMENTER_BIT)
-#define FPSID_SOFTWARE (1<<23)
-#define FPSID_FORMAT_BIT (21)
-#define FPSID_FORMAT_MASK (0x3 << FPSID_FORMAT_BIT)
-#define FPSID_NODOUBLE (1<<20)
-#define FPSID_ARCH_BIT (16)
-#define FPSID_ARCH_MASK (0xF << FPSID_ARCH_BIT)
-#define FPSID_PART_BIT (8)
-#define FPSID_PART_MASK (0xFF << FPSID_PART_BIT)
-#define FPSID_VARIANT_BIT (4)
-#define FPSID_VARIANT_MASK (0xF << FPSID_VARIANT_BIT)
-#define FPSID_REV_BIT (0)
-#define FPSID_REV_MASK (0xF << FPSID_REV_BIT)
-
-/* FPEXC bits */
-#define FPEXC_EXCEPTION (1<<31)
-#define FPEXC_ENABLE (1<<30)
-
-/* FPSCR bits */
-#define FPSCR_DEFAULT_NAN (1<<25)
-#define FPSCR_FLUSHTOZERO (1<<24)
-#define FPSCR_ROUND_NEAREST (0<<22)
-#define FPSCR_ROUND_PLUSINF (1<<22)
-#define FPSCR_ROUND_MINUSINF (2<<22)
-#define FPSCR_ROUND_TOZERO (3<<22)
-#define FPSCR_RMODE_BIT (22)
-#define FPSCR_RMODE_MASK (3 << FPSCR_RMODE_BIT)
-#define FPSCR_STRIDE_BIT (20)
-#define FPSCR_STRIDE_MASK (3 << FPSCR_STRIDE_BIT)
-#define FPSCR_LENGTH_BIT (16)
-#define FPSCR_LENGTH_MASK (7 << FPSCR_LENGTH_BIT)
-#define FPSCR_IOE (1<<8)
-#define FPSCR_DZE (1<<9)
-#define FPSCR_OFE (1<<10)
-#define FPSCR_UFE (1<<11)
-#define FPSCR_IXE (1<<12)
-#define FPSCR_IDE (1<<15)
-#define FPSCR_IOC (1<<0)
-#define FPSCR_DZC (1<<1)
-#define FPSCR_OFC (1<<2)
-#define FPSCR_UFC (1<<3)
-#define FPSCR_IXC (1<<4)
-#define FPSCR_IDC (1<<7)
-
-/*
- * VFP9-S specific.
- */
-#define FPINST cr9
-#define FPINST2 cr10
-
-/* FPEXC bits */
-#define FPEXC_FPV2 (1<<28)
-#define FPEXC_LENGTH_BIT (8)
-#define FPEXC_LENGTH_MASK (7 << FPEXC_LENGTH_BIT)
-#define FPEXC_INV (1 << 7)
-#define FPEXC_UFC (1 << 3)
-#define FPEXC_OFC (1 << 2)
-#define FPEXC_IOC (1 << 0)
-
-/* Bit patterns for decoding the packaged operation descriptors */
-#define VFPOPDESC_LENGTH_BIT (9)
-#define VFPOPDESC_LENGTH_MASK (0x07 << VFPOPDESC_LENGTH_BIT)
-#define VFPOPDESC_UNUSED_BIT (24)
-#define VFPOPDESC_UNUSED_MASK (0xFF << VFPOPDESC_UNUSED_BIT)
-#define VFPOPDESC_OPDESC_MASK (~(VFPOPDESC_LENGTH_MASK | VFPOPDESC_UNUSED_MASK))
+++ /dev/null
-/*
- * linux/include/asm-arm/vfpmacros.h
- *
- * Assembler-only file containing VFP macros and register definitions.
- */
-#include "vfp.h"
-
-@ Macros to allow building with old toolkits (with no VFP support)
- .macro VFPFMRX, rd, sysreg, cond
- MRC\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMRX \rd, \sysreg
- .endm
-
- .macro VFPFMXR, sysreg, rd, cond
- MCR\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMXR \sysreg, \rd
- .endm
-
- @ read all the working registers back into the VFP
- .macro VFPFLDMIA, base
- LDC p11, cr0, [\base],#33*4 @ FLDMIAX \base!, {d0-d15}
- .endm
-
- @ write all the working registers out of the VFP
- .macro VFPFSTMIA, base
- STC p11, cr0, [\base],#33*4 @ FSTMIAX \base!, {d0-d15}
- .endm
+++ /dev/null
-#ifndef _ARM_RMAP_H
-#define _ARM_RMAP_H
-
-/*
- * linux/include/asm-arm26/proc-armv/rmap.h
- *
- * Architecture dependant parts of the reverse mapping code,
- *
- * ARM is different since hardware page tables are smaller than
- * the page size and Linux uses a "duplicate" one with extra info.
- * For rmap this means that the first 2 kB of a page are the hardware
- * page tables and the last 2 kB are the software page tables.
- */
-
-static inline void pgtable_add_rmap(struct page *page, struct mm_struct * mm, unsigned long address)
-{
- page->mapping = (void *)mm;
- page->index = address & ~((PTRS_PER_PTE * PAGE_SIZE) - 1);
- inc_page_state(nr_page_table_pages);
-}
-
-static inline void pgtable_remove_rmap(struct page *page)
-{
- page->mapping = NULL;
- page->index = 0;
- dec_page_state(nr_page_table_pages);
-}
-
-static inline struct mm_struct * ptep_to_mm(pte_t * ptep)
-{
- struct page * page = virt_to_page(ptep);
- return (struct mm_struct *)page->mapping;
-}
-
-/* The page table takes half of the page */
-#define PTE_MASK ((PAGE_SIZE / 2) - 1)
-
-static inline unsigned long ptep_to_address(pte_t * ptep)
-{
- struct page * page = virt_to_page(ptep);
- unsigned long low_bits;
-
- low_bits = ((unsigned long)ptep & PTE_MASK) * PTRS_PER_PTE;
- return page->index + low_bits;
-}
-
-//FIXME!!! IS these correct?
-static inline pte_addr_t ptep_to_paddr(pte_t *ptep)
-{
- return (pte_addr_t)ptep;
-}
-
-static inline pte_t *rmap_ptep_map(pte_addr_t pte_paddr)
-{
- return (pte_t *)pte_paddr;
-}
-
-static inline void rmap_ptep_unmap(pte_t *pte)
-{
- return;
-}
-
-
-//#include <asm-generic/rmap.h>
-
-#endif /* _ARM_RMAP_H */
+++ /dev/null
-#ifndef _CRIS_RMAP_H
-#define _CRIS_RMAP_H
-
-/* nothing to see, move along :) */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-#ifndef _GENERIC_RMAP_H
-#define _GENERIC_RMAP_H
-/*
- * linux/include/asm-generic/rmap.h
- *
- * Architecture dependent parts of the reverse mapping code,
- * this version should work for most architectures with a
- * 'normal' page table layout.
- *
- * We use the struct page of the page table page to find out
- * the process and full address of a page table entry:
- * - page->mapping points to the process' mm_struct
- * - page->index has the high bits of the address
- * - the lower bits of the address are calculated from the
- * offset of the page table entry within the page table page
- *
- * For CONFIG_HIGHPTE, we need to represent the address of a pte in a
- * scalar pte_addr_t. The pfn of the pte's page is shifted left by PAGE_SIZE
- * bits and is then ORed with the byte offset of the pte within its page.
- *
- * For CONFIG_HIGHMEM4G, the pte_addr_t is 32 bits. 20 for the pfn, 12 for
- * the offset.
- *
- * For CONFIG_HIGHMEM64G, the pte_addr_t is 64 bits. 52 for the pfn, 12 for
- * the offset.
- */
-#include <linux/mm.h>
-
-static inline void pgtable_add_rmap(struct page * page, struct mm_struct * mm, unsigned long address)
-{
-#ifdef BROKEN_PPC_PTE_ALLOC_ONE
- /* OK, so PPC calls pte_alloc() before mem_map[] is setup ... ;( */
- extern int mem_init_done;
-
- if (!mem_init_done)
- return;
-#endif
- page->mapping = (void *)mm;
- page->index = address & ~((PTRS_PER_PTE * PAGE_SIZE) - 1);
- inc_page_state(nr_page_table_pages);
-}
-
-static inline void pgtable_remove_rmap(struct page * page)
-{
- page->mapping = NULL;
- page->index = 0;
- dec_page_state(nr_page_table_pages);
-}
-
-static inline struct mm_struct * ptep_to_mm(pte_t * ptep)
-{
- struct page * page = kmap_atomic_to_page(ptep);
- return (struct mm_struct *) page->mapping;
-}
-
-static inline unsigned long ptep_to_address(pte_t * ptep)
-{
- struct page * page = kmap_atomic_to_page(ptep);
- unsigned long low_bits;
- low_bits = ((unsigned long)ptep & (PTRS_PER_PTE*sizeof(pte_t) - 1))
- * (PAGE_SIZE/sizeof(pte_t));
- return page->index + low_bits;
-}
-
-#ifdef CONFIG_HIGHPTE
-static inline pte_addr_t ptep_to_paddr(pte_t *ptep)
-{
- pte_addr_t paddr;
- paddr = ((pte_addr_t)page_to_pfn(kmap_atomic_to_page(ptep))) << PAGE_SHIFT;
- return paddr + (pte_addr_t)((unsigned long)ptep & ~PAGE_MASK);
-}
-#else
-static inline pte_addr_t ptep_to_paddr(pte_t *ptep)
-{
- return (pte_addr_t)ptep;
-}
-#endif
-
-#ifndef CONFIG_HIGHPTE
-static inline pte_t *rmap_ptep_map(pte_addr_t pte_paddr)
-{
- return (pte_t *)pte_paddr;
-}
-
-static inline void rmap_ptep_unmap(pte_t *pte)
-{
- return;
-}
-#endif
-
-#endif /* _GENERIC_RMAP_H */
+++ /dev/null
-/* AE-3068 board depend header */
-
-/* TIMER rate define */
-#ifdef H8300_TIMER_DEFINE
-#define H8300_TIMER_COUNT_DATA 20000*10/8192
-#define H8300_TIMER_FREQ 20000*1000/8192
-#endif
-
-/* AE-3068 RTL8019AS Config */
-#ifdef H8300_NE_DEFINE
-
-#define NE2000_ADDR 0x200000
-#define NE2000_IRQ 5
-#define NE2000_BYTE volatile unsigned short
-
-#define WCRL 0xfee023
-#define MAR0A 0xffff20
-#define ETCR0A 0xffff24
-#define DTCR0A 0xffff27
-#define MAR0B 0xffff28
-#define DTCR0B 0xffff2f
-
-#define H8300_INIT_NE() \
-do { \
- wordlength = 1; \
- outb_p(0x48, ioaddr + EN0_DCFG); \
-} while(0)
-
-#endif
+++ /dev/null
-/* EDOSK2674 board depend header */
-
-/* TIMER rate define */
-#ifdef H8300_TIMER_DEFINE
-#define H8300_TIMER_COUNT_DATA 33000*10/8192
-#define H8300_TIMER_FREQ 33000*1000/8192
-#endif
-
-/* EDOSK-2674R SMSC Network Controler Target Depend impliments */
-#ifdef H8300_SMSC_DEFINE
-
-#define SMSC_BASE 0xf80000
-#define SMSC_IRQ 16
-
-/* sorry quick hack */
-#if defined(outw)
-# undef outw
-#endif
-#define outw(d,a) edosk2674_smsc_outw(d,(volatile unsigned short *)(a))
-#if defined(inw)
-# undef inw
-#endif
-#define inw(a) edosk2674_smsc_inw((volatile unsigned short *)(a))
-#if defined(outsw)
-# undef outsw
-#endif
-#define outsw(a,p,l) edosk2674_smsc_outsw((volatile unsigned short *)(a),p,l)
-#if defined(insw)
-# undef insw
-#endif
-#define insw(a,p,l) edosk2674_smsc_insw((volatile unsigned short *)(a),p,l)
-
-static inline void edosk2674_smsc_outw(
- unsigned short d,
- volatile unsigned short *a
- )
-{
- *a = (d >> 8) | (d << 8);
-}
-
-static inline unsigned short edosk2674_smsc_inw(
- volatile unsigned short *a
- )
-{
- unsigned short d;
- d = *a;
- return (d >> 8) | (d << 8);
-}
-
-static inline void edosk2674_smsc_outsw(
- volatile unsigned short *a,
- unsigned short *p,
- unsigned long l
- )
-{
- for (; l != 0; --l, p++)
- *a = *p;
-}
-
-static inline void edosk2674_smsc_insw(
- volatile unsigned short *a,
- unsigned short *p,
- unsigned long l
- )
-{
- for (; l != 0; --l, p++)
- *p = *a;
-}
-
-#endif
+++ /dev/null
-/* machine depend header */
-
-/* TIMER rate define */
-#ifdef H8300_TIMER_DEFINE
-#include <linux/config.h>
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068) || defined(CONFIG_H8S2678)
-#define H8300_TIMER_COUNT_DATA CONFIG_CPU_CLOCK*10/8192
-#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8192
-#endif
-
-#if defined(CONFIG_H8_3002) || defined(CONFIG_H83048)
-#define H8300_TIMER_COUNT_DATA CONFIG_CPU_CLOCK*10/8
-#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8
-#endif
-
-#endif
-
+++ /dev/null
-#include <linux/config.h>
-
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068) || defined(CONFIG_H8S2678)
-#define H8300_TIMER_COUNT_DATA CONFIG_CPU_CLOCK*10/8192
-#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8192
-#endif
-
-#if defined(H8_3002) || defined(CONFIG_H83048)
-#define H8300_TIMER_COUNT_DATA CONFIG_CPU_CLOCK*10/8
-#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8
-#endif
-
-#if !defined(H8300_TIMER_COUNT_DATA)
-#error illigal configuration
-#endif
+++ /dev/null
-/****************************************************************************/
-
-/*
- * h8300_smsc.h -- SMSC in H8/300H and H8S Evalution Board.
- *
- * (C) Copyright 2003, Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-/****************************************************************************/
-#ifndef h8300smsc_h
-#define h8300smsc_h
-/****************************************************************************/
-
-/* Such a description is OK ? */
-#define H8300_SMSC_DEFINE
-#include <asm/machine-depend.h>
-#undef H8300_SMSC_DEFINE
-
-/****************************************************************************/
-#endif /* h8300smsc_h */
+++ /dev/null
-/* H8MAX board depend header */
-
-/* TIMER rate define */
-#ifdef H8300_TIMER_DEFINE
-#define H8300_TIMER_COUNT_DATA 25000*10/8192
-#define H8300_TIMER_FREQ 25000*1000/8192
-#endif
-
-/* H8MAX RTL8019AS Config */
-#ifdef H8300_NE_DEFINE
-
-#define NE2000_ADDR 0x800600
-#define NE2000_IRQ 4
-#define NE2000_IRQ_VECTOR (12 + NE2000_IRQ)
-#define NE2000_BYTE volatile unsigned short
-
-/* sorry quick hack */
-#if defined(outb)
-# undef outb
-#endif
-#define outb(d,a) h8max_outb((d),(a) - NE2000_ADDR)
-#if defined(inb)
-# undef inb
-#endif
-#define inb(a) h8max_inb((a) - NE2000_ADDR)
-#if defined(outb_p)
-# undef outb_p
-#endif
-#define outb_p(d,a) h8max_outb((d),(a) - NE2000_ADDR)
-#if defined(inb_p)
-# undef inb_p
-#endif
-#define inb_p(a) h8max_inb((a) - NE2000_ADDR)
-#if defined(outsw)
-# undef outsw
-#endif
-#define outsw(a,p,l) h8max_outsw((a) - NE2000_ADDR,(unsigned short *)p,l)
-#if defined(insw)
-# undef insw
-#endif
-#define insw(a,p,l) h8max_insw((a) - NE2000_ADDR,(unsigned short *)p,l)
-#if defined(outsb)
-# undef outsb
-#endif
-#define outsb(a,p,l) h8max_outsb((a) - NE2000_ADDR,(unsigned char *)p,l)
-#if defined(insb)
-# undef insb
-#endif
-#define insb(a,p,l) h8max_insb((a) - NE2000_ADDR,(unsigned char *)p,l)
-
-#define H8300_INIT_NE() \
-do { \
- wordlength = 2; \
- h8max_outb(0x49, ioaddr + EN0_DCFG); \
- SA_prom[14] = SA_prom[15] = 0x57;\
-} while(0)
-
-static inline void h8max_outb(unsigned char d,unsigned char a)
-{
- *(unsigned short *)(NE2000_ADDR + (a << 1)) = d;
-}
-
-static inline unsigned char h8max_inb(unsigned char a)
-{
- return *(unsigned char *)(NE2000_ADDR + (a << 1) +1);
-}
-
-static inline void h8max_outsw(unsigned char a,unsigned short *p,unsigned long l)
-{
- unsigned short d;
- for (; l != 0; --l, p++) {
- d = (((*p) >> 8) & 0xff) | ((*p) << 8);
- *(unsigned short *)(NE2000_ADDR + (a << 1)) = d;
- }
-}
-
-static inline void h8max_insw(unsigned char a,unsigned short *p,unsigned long l)
-{
- unsigned short d;
- for (; l != 0; --l, p++) {
- d = *(unsigned short *)(NE2000_ADDR + (a << 1));
- *p = (d << 8)|((d >> 8) & 0xff);
- }
-}
-
-static inline void h8max_outsb(unsigned char a,unsigned char *p,unsigned long l)
-{
- for (; l != 0; --l, p++) {
- *(unsigned short *)(NE2000_ADDR + (a << 1)) = *p;
- }
-}
-
-static inline void h8max_insb(unsigned char a,unsigned char *p,unsigned long l)
-{
- for (; l != 0; --l, p++) {
- *p = *((unsigned char *)(NE2000_ADDR + (a << 1))+1);
- }
-}
-
-#endif
+++ /dev/null
-#ifndef _I386_PGTABLE_2LEVEL_DEFS_H
-#define _I386_PGTABLE_2LEVEL_DEFS_H
-
-/*
- * traditional i386 two-level paging structure:
- */
-
-#define PGDIR_SHIFT 22
-#define PTRS_PER_PGD 1024
-
-/*
- * the i386 is two-level, so we don't really have any
- * PMD directory physically.
- */
-#define PMD_SHIFT 22
-#define PTRS_PER_PMD 1
-
-#define PTRS_PER_PTE 1024
-
-#endif /* _I386_PGTABLE_2LEVEL_DEFS_H */
+++ /dev/null
-#ifndef _I386_PGTABLE_3LEVEL_DEFS_H
-#define _I386_PGTABLE_3LEVEL_DEFS_H
-
-/*
- * PGDIR_SHIFT determines what a top-level page table entry can map
- */
-#define PGDIR_SHIFT 30
-#define PTRS_PER_PGD 4
-
-/*
- * PMD_SHIFT determines the size of the area a middle-level
- * page table can map
- */
-#define PMD_SHIFT 21
-#define PTRS_PER_PMD 512
-
-/*
- * entries per page directory level
- */
-#define PTRS_PER_PTE 512
-
-#endif /* _I386_PGTABLE_3LEVEL_DEFS_H */
+++ /dev/null
-#ifndef _I386_RMAP_H
-#define _I386_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#ifdef CONFIG_HIGHPTE
-static inline pte_t *rmap_ptep_map(pte_addr_t pte_paddr)
-{
- unsigned long pfn = (unsigned long)(pte_paddr >> PAGE_SHIFT);
- unsigned long off = ((unsigned long)pte_paddr) & ~PAGE_MASK;
- return (pte_t *)((char *)kmap_atomic(pfn_to_page(pfn), KM_PTE2) + off);
-}
-
-static inline void rmap_ptep_unmap(pte_t *pte)
-{
- kunmap_atomic(pte, KM_PTE2);
-}
-#endif
-
-#endif
+++ /dev/null
-#ifndef _ASM_IA64_RMAP_H
-#define _ASM_IA64_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif /* _ASM_IA64_RMAP_H */
+++ /dev/null
-#ifndef __IA64_SETUP_H
-#define __IA64_SETUP_H
-
-#define COMMAND_LINE_SIZE 512
-
-#endif
+++ /dev/null
-#ifndef _M68K_RMAP_H
-#define _M68K_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-/* Do not need anything here */
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright - Galileo technology.
- * Copyright (C) 2004 by Ralf Baechle
- */
-#ifndef __ASM_MIPS_MV64240_H
-#define __ASM_MIPS_MV64240_H
-
-#include <asm/addrspace.h>
-#include <asm/marvell.h>
-
-/*
- * CPU Control Registers
- */
-
-#define CPU_CONFIGURATION 0x000
-#define CPU_MODE 0x120
-#define CPU_READ_RESPONSE_CROSSBAR_LOW 0x170
-#define CPU_READ_RESPONSE_CROSSBAR_HIGH 0x178
-
-/*
- * Processor Address Space
- */
-
-/* Sdram's BAR'S */
-#define SCS_0_LOW_DECODE_ADDRESS 0x008
-#define SCS_0_HIGH_DECODE_ADDRESS 0x010
-#define SCS_1_LOW_DECODE_ADDRESS 0x208
-#define SCS_1_HIGH_DECODE_ADDRESS 0x210
-#define SCS_2_LOW_DECODE_ADDRESS 0x018
-#define SCS_2_HIGH_DECODE_ADDRESS 0x020
-#define SCS_3_LOW_DECODE_ADDRESS 0x218
-#define SCS_3_HIGH_DECODE_ADDRESS 0x220
-/* Devices BAR'S */
-#define CS_0_LOW_DECODE_ADDRESS 0x028
-#define CS_0_HIGH_DECODE_ADDRESS 0x030
-#define CS_1_LOW_DECODE_ADDRESS 0x228
-#define CS_1_HIGH_DECODE_ADDRESS 0x230
-#define CS_2_LOW_DECODE_ADDRESS 0x248
-#define CS_2_HIGH_DECODE_ADDRESS 0x250
-#define CS_3_LOW_DECODE_ADDRESS 0x038
-#define CS_3_HIGH_DECODE_ADDRESS 0x040
-#define BOOTCS_LOW_DECODE_ADDRESS 0x238
-#define BOOTCS_HIGH_DECODE_ADDRESS 0x240
-
-#define PCI_0I_O_LOW_DECODE_ADDRESS 0x048
-#define PCI_0I_O_HIGH_DECODE_ADDRESS 0x050
-#define PCI_0MEMORY0_LOW_DECODE_ADDRESS 0x058
-#define PCI_0MEMORY0_HIGH_DECODE_ADDRESS 0x060
-#define PCI_0MEMORY1_LOW_DECODE_ADDRESS 0x080
-#define PCI_0MEMORY1_HIGH_DECODE_ADDRESS 0x088
-#define PCI_0MEMORY2_LOW_DECODE_ADDRESS 0x258
-#define PCI_0MEMORY2_HIGH_DECODE_ADDRESS 0x260
-#define PCI_0MEMORY3_LOW_DECODE_ADDRESS 0x280
-#define PCI_0MEMORY3_HIGH_DECODE_ADDRESS 0x288
-
-#define PCI_1I_O_LOW_DECODE_ADDRESS 0x090
-#define PCI_1I_O_HIGH_DECODE_ADDRESS 0x098
-#define PCI_1MEMORY0_LOW_DECODE_ADDRESS 0x0a0
-#define PCI_1MEMORY0_HIGH_DECODE_ADDRESS 0x0a8
-#define PCI_1MEMORY1_LOW_DECODE_ADDRESS 0x0b0
-#define PCI_1MEMORY1_HIGH_DECODE_ADDRESS 0x0b8
-#define PCI_1MEMORY2_LOW_DECODE_ADDRESS 0x2a0
-#define PCI_1MEMORY2_HIGH_DECODE_ADDRESS 0x2a8
-#define PCI_1MEMORY3_LOW_DECODE_ADDRESS 0x2b0
-#define PCI_1MEMORY3_HIGH_DECODE_ADDRESS 0x2b8
-
-#define INTERNAL_SPACE_DECODE 0x068
-
-#define CPU_0_LOW_DECODE_ADDRESS 0x290
-#define CPU_0_HIGH_DECODE_ADDRESS 0x298
-#define CPU_1_LOW_DECODE_ADDRESS 0x2c0
-#define CPU_1_HIGH_DECODE_ADDRESS 0x2c8
-
-#define PCI_0I_O_ADDRESS_REMAP 0x0f0
-#define PCI_0MEMORY0_ADDRESS_REMAP 0x0f8
-#define PCI_0MEMORY0_HIGH_ADDRESS_REMAP 0x320
-#define PCI_0MEMORY1_ADDRESS_REMAP 0x100
-#define PCI_0MEMORY1_HIGH_ADDRESS_REMAP 0x328
-#define PCI_0MEMORY2_ADDRESS_REMAP 0x2f8
-#define PCI_0MEMORY2_HIGH_ADDRESS_REMAP 0x330
-#define PCI_0MEMORY3_ADDRESS_REMAP 0x300
-#define PCI_0MEMORY3_HIGH_ADDRESS_REMAP 0x338
-
-#define PCI_1I_O_ADDRESS_REMAP 0x108
-#define PCI_1MEMORY0_ADDRESS_REMAP 0x110
-#define PCI_1MEMORY0_HIGH_ADDRESS_REMAP 0x340
-#define PCI_1MEMORY1_ADDRESS_REMAP 0x118
-#define PCI_1MEMORY1_HIGH_ADDRESS_REMAP 0x348
-#define PCI_1MEMORY2_ADDRESS_REMAP 0x310
-#define PCI_1MEMORY2_HIGH_ADDRESS_REMAP 0x350
-#define PCI_1MEMORY3_ADDRESS_REMAP 0x318
-#define PCI_1MEMORY3_HIGH_ADDRESS_REMAP 0x358
-
-/*
- * CPU Sync Barrier
- */
-
-#define PCI_0SYNC_BARIER_VIRTUAL_REGISTER 0x0c0
-#define PCI_1SYNC_BARIER_VIRTUAL_REGISTER 0x0c8
-
-
-/*
- * CPU Access Protect
- */
-
-#define CPU_LOW_PROTECT_ADDRESS_0 0X180
-#define CPU_HIGH_PROTECT_ADDRESS_0 0X188
-#define CPU_LOW_PROTECT_ADDRESS_1 0X190
-#define CPU_HIGH_PROTECT_ADDRESS_1 0X198
-#define CPU_LOW_PROTECT_ADDRESS_2 0X1a0
-#define CPU_HIGH_PROTECT_ADDRESS_2 0X1a8
-#define CPU_LOW_PROTECT_ADDRESS_3 0X1b0
-#define CPU_HIGH_PROTECT_ADDRESS_3 0X1b8
-#define CPU_LOW_PROTECT_ADDRESS_4 0X1c0
-#define CPU_HIGH_PROTECT_ADDRESS_4 0X1c8
-#define CPU_LOW_PROTECT_ADDRESS_5 0X1d0
-#define CPU_HIGH_PROTECT_ADDRESS_5 0X1d8
-#define CPU_LOW_PROTECT_ADDRESS_6 0X1e0
-#define CPU_HIGH_PROTECT_ADDRESS_6 0X1e8
-#define CPU_LOW_PROTECT_ADDRESS_7 0X1f0
-#define CPU_HIGH_PROTECT_ADDRESS_7 0X1f8
-
-
-/*
- * Snoop Control
- */
-
-#define SNOOP_BASE_ADDRESS_0 0x380
-#define SNOOP_TOP_ADDRESS_0 0x388
-#define SNOOP_BASE_ADDRESS_1 0x390
-#define SNOOP_TOP_ADDRESS_1 0x398
-#define SNOOP_BASE_ADDRESS_2 0x3a0
-#define SNOOP_TOP_ADDRESS_2 0x3a8
-#define SNOOP_BASE_ADDRESS_3 0x3b0
-#define SNOOP_TOP_ADDRESS_3 0x3b8
-
-/*
- * CPU Error Report
- */
-
-#define CPU_ERROR_ADDRESS_LOW 0x070
-#define CPU_ERROR_ADDRESS_HIGH 0x078
-#define CPU_ERROR_DATA_LOW 0x128
-#define CPU_ERROR_DATA_HIGH 0x130
-#define CPU_ERROR_PARITY 0x138
-#define CPU_ERROR_CAUSE 0x140
-#define CPU_ERROR_MASK 0x148
-
-/*
- * Pslave Debug
- */
-
-#define X_0_ADDRESS 0x360
-#define X_0_COMMAND_ID 0x368
-#define X_1_ADDRESS 0x370
-#define X_1_COMMAND_ID 0x378
-#define WRITE_DATA_LOW 0x3c0
-#define WRITE_DATA_HIGH 0x3c8
-#define WRITE_BYTE_ENABLE 0X3e0
-#define READ_DATA_LOW 0x3d0
-#define READ_DATA_HIGH 0x3d8
-#define READ_ID 0x3e8
-
-
-/*
- * SDRAM and Device Address Space
- */
-
-
-/*
- * SDRAM Configuration
- */
-
-#define SDRAM_CONFIGURATION 0x448
-#define SDRAM_OPERATION_MODE 0x474
-#define SDRAM_ADDRESS_DECODE 0x47C
-#define SDRAM_TIMING_PARAMETERS 0x4b4
-#define SDRAM_UMA_CONTROL 0x4a4
-#define SDRAM_CROSS_BAR_CONTROL_LOW 0x4a8
-#define SDRAM_CROSS_BAR_CONTROL_HIGH 0x4ac
-#define SDRAM_CROSS_BAR_TIMEOUT 0x4b0
-
-
-/*
- * SDRAM Parameters
- */
-
-#define SDRAM_BANK0PARAMETERS 0x44C
-#define SDRAM_BANK1PARAMETERS 0x450
-#define SDRAM_BANK2PARAMETERS 0x454
-#define SDRAM_BANK3PARAMETERS 0x458
-
-
-/*
- * SDRAM Error Report
- */
-
-#define SDRAM_ERROR_DATA_LOW 0x484
-#define SDRAM_ERROR_DATA_HIGH 0x480
-#define SDRAM_AND_DEVICE_ERROR_ADDRESS 0x490
-#define SDRAM_RECEIVED_ECC 0x488
-#define SDRAM_CALCULATED_ECC 0x48c
-#define SDRAM_ECC_CONTROL 0x494
-#define SDRAM_ECC_ERROR_COUNTER 0x498
-
-
-/*
- * SDunit Debug (for internal use)
- */
-
-#define X0_ADDRESS 0x500
-#define X0_COMMAND_AND_ID 0x504
-#define X0_WRITE_DATA_LOW 0x508
-#define X0_WRITE_DATA_HIGH 0x50c
-#define X0_WRITE_BYTE_ENABLE 0x518
-#define X0_READ_DATA_LOW 0x510
-#define X0_READ_DATA_HIGH 0x514
-#define X0_READ_ID 0x51c
-#define X1_ADDRESS 0x520
-#define X1_COMMAND_AND_ID 0x524
-#define X1_WRITE_DATA_LOW 0x528
-#define X1_WRITE_DATA_HIGH 0x52c
-#define X1_WRITE_BYTE_ENABLE 0x538
-#define X1_READ_DATA_LOW 0x530
-#define X1_READ_DATA_HIGH 0x534
-#define X1_READ_ID 0x53c
-#define X0_SNOOP_ADDRESS 0x540
-#define X0_SNOOP_COMMAND 0x544
-#define X1_SNOOP_ADDRESS 0x548
-#define X1_SNOOP_COMMAND 0x54c
-
-
-/*
- * Device Parameters
- */
-
-#define DEVICE_BANK0PARAMETERS 0x45c
-#define DEVICE_BANK1PARAMETERS 0x460
-#define DEVICE_BANK2PARAMETERS 0x464
-#define DEVICE_BANK3PARAMETERS 0x468
-#define DEVICE_BOOT_BANK_PARAMETERS 0x46c
-#define DEVICE_CONTROL 0x4c0
-#define DEVICE_CROSS_BAR_CONTROL_LOW 0x4c8
-#define DEVICE_CROSS_BAR_CONTROL_HIGH 0x4cc
-#define DEVICE_CROSS_BAR_TIMEOUT 0x4c4
-
-
-/*
- * Device Interrupt
- */
-
-#define DEVICE_INTERRUPT_CAUSE 0x4d0
-#define DEVICE_INTERRUPT_MASK 0x4d4
-#define DEVICE_ERROR_ADDRESS 0x4d8
-
-/*
- * DMA Record
- */
-
-#define CHANNEL0_DMA_BYTE_COUNT 0x800
-#define CHANNEL1_DMA_BYTE_COUNT 0x804
-#define CHANNEL2_DMA_BYTE_COUNT 0x808
-#define CHANNEL3_DMA_BYTE_COUNT 0x80C
-#define CHANNEL4_DMA_BYTE_COUNT 0x900
-#define CHANNEL5_DMA_BYTE_COUNT 0x904
-#define CHANNEL6_DMA_BYTE_COUNT 0x908
-#define CHANNEL7_DMA_BYTE_COUNT 0x90C
-#define CHANNEL0_DMA_SOURCE_ADDRESS 0x810
-#define CHANNEL1_DMA_SOURCE_ADDRESS 0x814
-#define CHANNEL2_DMA_SOURCE_ADDRESS 0x818
-#define CHANNEL3_DMA_SOURCE_ADDRESS 0x81C
-#define CHANNEL4_DMA_SOURCE_ADDRESS 0x910
-#define CHANNEL5_DMA_SOURCE_ADDRESS 0x914
-#define CHANNEL6_DMA_SOURCE_ADDRESS 0x918
-#define CHANNEL7_DMA_SOURCE_ADDRESS 0x91C
-#define CHANNEL0_DMA_DESTINATION_ADDRESS 0x820
-#define CHANNEL1_DMA_DESTINATION_ADDRESS 0x824
-#define CHANNEL2_DMA_DESTINATION_ADDRESS 0x828
-#define CHANNEL3_DMA_DESTINATION_ADDRESS 0x82C
-#define CHANNEL4_DMA_DESTINATION_ADDRESS 0x920
-#define CHANNEL5_DMA_DESTINATION_ADDRESS 0x924
-#define CHANNEL6_DMA_DESTINATION_ADDRESS 0x928
-#define CHANNEL7_DMA_DESTINATION_ADDRESS 0x92C
-#define CHANNEL0NEXT_RECORD_POINTER 0x830
-#define CHANNEL1NEXT_RECORD_POINTER 0x834
-#define CHANNEL2NEXT_RECORD_POINTER 0x838
-#define CHANNEL3NEXT_RECORD_POINTER 0x83C
-#define CHANNEL4NEXT_RECORD_POINTER 0x930
-#define CHANNEL5NEXT_RECORD_POINTER 0x934
-#define CHANNEL6NEXT_RECORD_POINTER 0x938
-#define CHANNEL7NEXT_RECORD_POINTER 0x93C
-#define CHANNEL0CURRENT_DESCRIPTOR_POINTER 0x870
-#define CHANNEL1CURRENT_DESCRIPTOR_POINTER 0x874
-#define CHANNEL2CURRENT_DESCRIPTOR_POINTER 0x878
-#define CHANNEL3CURRENT_DESCRIPTOR_POINTER 0x87C
-#define CHANNEL4CURRENT_DESCRIPTOR_POINTER 0x970
-#define CHANNEL5CURRENT_DESCRIPTOR_POINTER 0x974
-#define CHANNEL6CURRENT_DESCRIPTOR_POINTER 0x978
-#define CHANNEL7CURRENT_DESCRIPTOR_POINTER 0x97C
-#define CHANNEL0_DMA_SOURCE_HIGH_PCI_ADDRESS 0x890
-#define CHANNEL1_DMA_SOURCE_HIGH_PCI_ADDRESS 0x894
-#define CHANNEL2_DMA_SOURCE_HIGH_PCI_ADDRESS 0x898
-#define CHANNEL3_DMA_SOURCE_HIGH_PCI_ADDRESS 0x89c
-#define CHANNEL4_DMA_SOURCE_HIGH_PCI_ADDRESS 0x990
-#define CHANNEL5_DMA_SOURCE_HIGH_PCI_ADDRESS 0x994
-#define CHANNEL6_DMA_SOURCE_HIGH_PCI_ADDRESS 0x998
-#define CHANNEL7_DMA_SOURCE_HIGH_PCI_ADDRESS 0x99c
-#define CHANNEL0_DMA_DESTINATION_HIGH_PCI_ADDRESS 0x8a0
-#define CHANNEL1_DMA_DESTINATION_HIGH_PCI_ADDRESS 0x8a4
-#define CHANNEL2_DMA_DESTINATION_HIGH_PCI_ADDRESS 0x8a8
-#define CHANNEL3_DMA_DESTINATION_HIGH_PCI_ADDRESS 0x8ac
-#define CHANNEL4_DMA_DESTINATION_HIGH_PCI_ADDRESS 0x9a0
-#define CHANNEL5_DMA_DESTINATION_HIGH_PCI_ADDRESS 0x9a4
-#define CHANNEL6_DMA_DESTINATION_HIGH_PCI_ADDRESS 0x9a8
-#define CHANNEL7_DMA_DESTINATION_HIGH_PCI_ADDRESS 0x9ac
-#define CHANNEL0_DMA_NEXT_RECORD_POINTER_HIGH_PCI_ADDRESS 0x8b0
-#define CHANNEL1_DMA_NEXT_RECORD_POINTER_HIGH_PCI_ADDRESS 0x8b4
-#define CHANNEL2_DMA_NEXT_RECORD_POINTER_HIGH_PCI_ADDRESS 0x8b8
-#define CHANNEL3_DMA_NEXT_RECORD_POINTER_HIGH_PCI_ADDRESS 0x8bc
-#define CHANNEL4_DMA_NEXT_RECORD_POINTER_HIGH_PCI_ADDRESS 0x9b0
-#define CHANNEL5_DMA_NEXT_RECORD_POINTER_HIGH_PCI_ADDRESS 0x9b4
-#define CHANNEL6_DMA_NEXT_RECORD_POINTER_HIGH_PCI_ADDRESS 0x9b8
-#define CHANNEL7_DMA_NEXT_RECORD_POINTER_HIGH_PCI_ADDRESS 0x9bc
-
-/*
- * DMA Channel Control
- */
-
-#define CHANNEL0CONTROL 0x840
-#define CHANNEL0CONTROL_HIGH 0x880
-
-#define CHANNEL1CONTROL 0x844
-#define CHANNEL1CONTROL_HIGH 0x884
-
-#define CHANNEL2CONTROL 0x848
-#define CHANNEL2CONTROL_HIGH 0x888
-
-#define CHANNEL3CONTROL 0x84C
-#define CHANNEL3CONTROL_HIGH 0x88C
-
-#define CHANNEL4CONTROL 0x940
-#define CHANNEL4CONTROL_HIGH 0x980
-
-#define CHANNEL5CONTROL 0x944
-#define CHANNEL5CONTROL_HIGH 0x984
-
-#define CHANNEL6CONTROL 0x948
-#define CHANNEL6CONTROL_HIGH 0x988
-
-#define CHANNEL7CONTROL 0x94C
-#define CHANNEL7CONTROL_HIGH 0x98C
-
-
-/*
- * DMA Arbiter
- */
-
-#define ARBITER_CONTROL_0_3 0x860
-#define ARBITER_CONTROL_4_7 0x960
-
-
-/*
- * DMA Interrupt
- */
-
-#define CHANELS0_3_INTERRUPT_CAUSE 0x8c0
-#define CHANELS0_3_INTERRUPT_MASK 0x8c4
-#define CHANELS0_3_ERROR_ADDRESS 0x8c8
-#define CHANELS0_3_ERROR_SELECT 0x8cc
-#define CHANELS4_7_INTERRUPT_CAUSE 0x9c0
-#define CHANELS4_7_INTERRUPT_MASK 0x9c4
-#define CHANELS4_7_ERROR_ADDRESS 0x9c8
-#define CHANELS4_7_ERROR_SELECT 0x9cc
-
-
-/*
- * DMA Debug (for internal use)
- */
-
-#define DMA_X0_ADDRESS 0x8e0
-#define DMA_X0_COMMAND_AND_ID 0x8e4
-#define DMA_X0_WRITE_DATA_LOW 0x8e8
-#define DMA_X0_WRITE_DATA_HIGH 0x8ec
-#define DMA_X0_WRITE_BYTE_ENABLE 0x8f8
-#define DMA_X0_READ_DATA_LOW 0x8f0
-#define DMA_X0_READ_DATA_HIGH 0x8f4
-#define DMA_X0_READ_ID 0x8fc
-#define DMA_X1_ADDRESS 0x9e0
-#define DMA_X1_COMMAND_AND_ID 0x9e4
-#define DMA_X1_WRITE_DATA_LOW 0x9e8
-#define DMA_X1_WRITE_DATA_HIGH 0x9ec
-#define DMA_X1_WRITE_BYTE_ENABLE 0x9f8
-#define DMA_X1_READ_DATA_LOW 0x9f0
-#define DMA_X1_READ_DATA_HIGH 0x9f4
-#define DMA_X1_READ_ID 0x9fc
-
-/*
- * Timer_Counter
- */
-
-#define TIMER_COUNTER0 0x850
-#define TIMER_COUNTER1 0x854
-#define TIMER_COUNTER2 0x858
-#define TIMER_COUNTER3 0x85C
-#define TIMER_COUNTER_0_3_CONTROL 0x864
-#define TIMER_COUNTER_0_3_INTERRUPT_CAUSE 0x868
-#define TIMER_COUNTER_0_3_INTERRUPT_MASK 0x86c
-#define TIMER_COUNTER4 0x950
-#define TIMER_COUNTER5 0x954
-#define TIMER_COUNTER6 0x958
-#define TIMER_COUNTER7 0x95C
-#define TIMER_COUNTER_4_7_CONTROL 0x964
-#define TIMER_COUNTER_4_7_INTERRUPT_CAUSE 0x968
-#define TIMER_COUNTER_4_7_INTERRUPT_MASK 0x96c
-
-/*
- * PCI Slave Address Decoding
- */
-
-#define PCI_0SCS_0_BANK_SIZE 0xc08
-#define PCI_1SCS_0_BANK_SIZE 0xc88
-#define PCI_0SCS_1_BANK_SIZE 0xd08
-#define PCI_1SCS_1_BANK_SIZE 0xd88
-#define PCI_0SCS_2_BANK_SIZE 0xc0c
-#define PCI_1SCS_2_BANK_SIZE 0xc8c
-#define PCI_0SCS_3_BANK_SIZE 0xd0c
-#define PCI_1SCS_3_BANK_SIZE 0xd8c
-#define PCI_0CS_0_BANK_SIZE 0xc10
-#define PCI_1CS_0_BANK_SIZE 0xc90
-#define PCI_0CS_1_BANK_SIZE 0xd10
-#define PCI_1CS_1_BANK_SIZE 0xd90
-#define PCI_0CS_2_BANK_SIZE 0xd18
-#define PCI_1CS_2_BANK_SIZE 0xd98
-#define PCI_0CS_3_BANK_SIZE 0xc14
-#define PCI_1CS_3_BANK_SIZE 0xc94
-#define PCI_0CS_BOOT_BANK_SIZE 0xd14
-#define PCI_1CS_BOOT_BANK_SIZE 0xd94
-#define PCI_0P2P_MEM0_BAR_SIZE 0xd1c
-#define PCI_1P2P_MEM0_BAR_SIZE 0xd9c
-#define PCI_0P2P_MEM1_BAR_SIZE 0xd20
-#define PCI_1P2P_MEM1_BAR_SIZE 0xda0
-#define PCI_0P2P_I_O_BAR_SIZE 0xd24
-#define PCI_1P2P_I_O_BAR_SIZE 0xda4
-#define PCI_0CPU_BAR_SIZE 0xd28
-#define PCI_1CPU_BAR_SIZE 0xda8
-#define PCI_0DAC_SCS_0_BANK_SIZE 0xe00
-#define PCI_1DAC_SCS_0_BANK_SIZE 0xe80
-#define PCI_0DAC_SCS_1_BANK_SIZE 0xe04
-#define PCI_1DAC_SCS_1_BANK_SIZE 0xe84
-#define PCI_0DAC_SCS_2_BANK_SIZE 0xe08
-#define PCI_1DAC_SCS_2_BANK_SIZE 0xe88
-#define PCI_0DAC_SCS_3_BANK_SIZE 0xe0c
-#define PCI_1DAC_SCS_3_BANK_SIZE 0xe8c
-#define PCI_0DAC_CS_0_BANK_SIZE 0xe10
-#define PCI_1DAC_CS_0_BANK_SIZE 0xe90
-#define PCI_0DAC_CS_1_BANK_SIZE 0xe14
-#define PCI_1DAC_CS_1_BANK_SIZE 0xe94
-#define PCI_0DAC_CS_2_BANK_SIZE 0xe18
-#define PCI_1DAC_CS_2_BANK_SIZE 0xe98
-#define PCI_0DAC_CS_3_BANK_SIZE 0xe1c
-#define PCI_1DAC_CS_3_BANK_SIZE 0xe9c
-#define PCI_0DAC_BOOTCS_BANK_SIZE 0xe20
-#define PCI_1DAC_BOOTCS_BANK_SIZE 0xea0
-#define PCI_0DAC_P2P_MEM0_BAR_SIZE 0xe24
-#define PCI_1DAC_P2P_MEM0_BAR_SIZE 0xea4
-#define PCI_0DAC_P2P_MEM1_BAR_SIZE 0xe28
-#define PCI_1DAC_P2P_MEM1_BAR_SIZE 0xea8
-#define PCI_0DAC_CPU_BAR_SIZE 0xe2c
-#define PCI_1DAC_CPU_BAR_SIZE 0xeac
-#define PCI_0EXPANSION_ROM_BAR_SIZE 0xd2c
-#define PCI_1EXPANSION_ROM_BAR_SIZE 0xdac
-#define PCI_0BASE_ADDRESS_REGISTERS_ENABLE 0xc3c
-#define PCI_1BASE_ADDRESS_REGISTERS_ENABLE 0xcbc
-#define PCI_0SCS_0_BASE_ADDRESS_REMAP 0xc48
-#define PCI_1SCS_0_BASE_ADDRESS_REMAP 0xcc8
-#define PCI_0SCS_1_BASE_ADDRESS_REMAP 0xd48
-#define PCI_1SCS_1_BASE_ADDRESS_REMAP 0xdc8
-#define PCI_0SCS_2_BASE_ADDRESS_REMAP 0xc4c
-#define PCI_1SCS_2_BASE_ADDRESS_REMAP 0xccc
-#define PCI_0SCS_3_BASE_ADDRESS_REMAP 0xd4c
-#define PCI_1SCS_3_BASE_ADDRESS_REMAP 0xdcc
-#define PCI_0CS_0_BASE_ADDRESS_REMAP 0xc50
-#define PCI_1CS_0_BASE_ADDRESS_REMAP 0xcd0
-#define PCI_0CS_1_BASE_ADDRESS_REMAP 0xd50
-#define PCI_1CS_1_BASE_ADDRESS_REMAP 0xdd0
-#define PCI_0CS_2_BASE_ADDRESS_REMAP 0xd58
-#define PCI_1CS_2_BASE_ADDRESS_REMAP 0xdd8
-#define PCI_0CS_3_BASE_ADDRESS_REMAP 0xc54
-#define PCI_1CS_3_BASE_ADDRESS_REMAP 0xcd4
-#define PCI_0CS_BOOTCS_BASE_ADDRESS_REMAP 0xd54
-#define PCI_1CS_BOOTCS_BASE_ADDRESS_REMAP 0xdd4
-#define PCI_0P2P_MEM0_BASE_ADDRESS_REMAP_LOW 0xd5c
-#define PCI_1P2P_MEM0_BASE_ADDRESS_REMAP_LOW 0xddc
-#define PCI_0P2P_MEM0_BASE_ADDRESS_REMAP_HIGH 0xd60
-#define PCI_1P2P_MEM0_BASE_ADDRESS_REMAP_HIGH 0xde0
-#define PCI_0P2P_MEM1_BASE_ADDRESS_REMAP_LOW 0xd64
-#define PCI_1P2P_MEM1_BASE_ADDRESS_REMAP_LOW 0xde4
-#define PCI_0P2P_MEM1_BASE_ADDRESS_REMAP_HIGH 0xd68
-#define PCI_1P2P_MEM1_BASE_ADDRESS_REMAP_HIGH 0xde8
-#define PCI_0P2P_I_O_BASE_ADDRESS_REMAP 0xd6c
-#define PCI_1P2P_I_O_BASE_ADDRESS_REMAP 0xdec
-#define PCI_0CPU_BASE_ADDRESS_REMAP 0xd70
-#define PCI_1CPU_BASE_ADDRESS_REMAP 0xdf0
-#define PCI_0DAC_SCS_0_BASE_ADDRESS_REMAP 0xf00
-#define PCI_1DAC_SCS_0_BASE_ADDRESS_REMAP 0xff0
-#define PCI_0DAC_SCS_1_BASE_ADDRESS_REMAP 0xf04
-#define PCI_1DAC_SCS_1_BASE_ADDRESS_REMAP 0xf84
-#define PCI_0DAC_SCS_2_BASE_ADDRESS_REMAP 0xf08
-#define PCI_1DAC_SCS_2_BASE_ADDRESS_REMAP 0xf88
-#define PCI_0DAC_SCS_3_BASE_ADDRESS_REMAP 0xf0c
-#define PCI_1DAC_SCS_3_BASE_ADDRESS_REMAP 0xf8c
-#define PCI_0DAC_CS_0_BASE_ADDRESS_REMAP 0xf10
-#define PCI_1DAC_CS_0_BASE_ADDRESS_REMAP 0xf90
-#define PCI_0DAC_CS_1_BASE_ADDRESS_REMAP 0xf14
-#define PCI_1DAC_CS_1_BASE_ADDRESS_REMAP 0xf94
-#define PCI_0DAC_CS_2_BASE_ADDRESS_REMAP 0xf18
-#define PCI_1DAC_CS_2_BASE_ADDRESS_REMAP 0xf98
-#define PCI_0DAC_CS_3_BASE_ADDRESS_REMAP 0xf1c
-#define PCI_1DAC_CS_3_BASE_ADDRESS_REMAP 0xf9c
-#define PCI_0DAC_BOOTCS_BASE_ADDRESS_REMAP 0xf20
-#define PCI_1DAC_BOOTCS_BASE_ADDRESS_REMAP 0xfa0
-#define PCI_0DAC_P2P_MEM0_BASE_ADDRESS_REMAP_LOW 0xf24
-#define PCI_1DAC_P2P_MEM0_BASE_ADDRESS_REMAP_LOW 0xfa4
-#define PCI_0DAC_P2P_MEM0_BASE_ADDRESS_REMAP_HIGH 0xf28
-#define PCI_1DAC_P2P_MEM0_BASE_ADDRESS_REMAP_HIGH 0xfa8
-#define PCI_0DAC_P2P_MEM1_BASE_ADDRESS_REMAP_LOW 0xf2c
-#define PCI_1DAC_P2P_MEM1_BASE_ADDRESS_REMAP_LOW 0xfac
-#define PCI_0DAC_P2P_MEM1_BASE_ADDRESS_REMAP_HIGH 0xf30
-#define PCI_1DAC_P2P_MEM1_BASE_ADDRESS_REMAP_HIGH 0xfb0
-#define PCI_0DAC_CPU_BASE_ADDRESS_REMAP 0xf34
-#define PCI_1DAC_CPU_BASE_ADDRESS_REMAP 0xfb4
-#define PCI_0EXPANSION_ROM_BASE_ADDRESS_REMAP 0xf38
-#define PCI_1EXPANSION_ROM_BASE_ADDRESS_REMAP 0xfb8
-#define PCI_0ADDRESS_DECODE_CONTROL 0xd3c
-#define PCI_1ADDRESS_DECODE_CONTROL 0xdbc
-
-/*
- * PCI Control
- */
-
-#define PCI_0COMMAND 0xc00
-#define PCI_1COMMAND 0xc80
-#define PCI_0MODE 0xd00
-#define PCI_1MODE 0xd80
-#define PCI_0TIMEOUT_RETRY 0xc04
-#define PCI_1TIMEOUT_RETRY 0xc84
-#define PCI_0READ_BUFFER_DISCARD_TIMER 0xd04
-#define PCI_1READ_BUFFER_DISCARD_TIMER 0xd84
-#define MSI_0TRIGGER_TIMER 0xc38
-#define MSI_1TRIGGER_TIMER 0xcb8
-#define PCI_0ARBITER_CONTROL 0x1d00
-#define PCI_1ARBITER_CONTROL 0x1d80
-/* changing untill here */
-#define PCI_0CROSS_BAR_CONTROL_LOW 0x1d08
-#define PCI_0CROSS_BAR_CONTROL_HIGH 0x1d0c
-#define PCI_0CROSS_BAR_TIMEOUT 0x1d04
-#define PCI_0READ_RESPONSE_CROSS_BAR_CONTROL_LOW 0x1d18
-#define PCI_0READ_RESPONSE_CROSS_BAR_CONTROL_HIGH 0x1d1c
-#define PCI_0SYNC_BARRIER_VIRTUAL_REGISTER 0x1d10
-#define PCI_0P2P_CONFIGURATION 0x1d14
-#define PCI_0ACCESS_CONTROL_BASE_0_LOW 0x1e00
-#define PCI_0ACCESS_CONTROL_BASE_0_HIGH 0x1e04
-#define PCI_0ACCESS_CONTROL_TOP_0 0x1e08
-#define PCI_0ACCESS_CONTROL_BASE_1_LOW 0c1e10
-#define PCI_0ACCESS_CONTROL_BASE_1_HIGH 0x1e14
-#define PCI_0ACCESS_CONTROL_TOP_1 0x1e18
-#define PCI_0ACCESS_CONTROL_BASE_2_LOW 0c1e20
-#define PCI_0ACCESS_CONTROL_BASE_2_HIGH 0x1e24
-#define PCI_0ACCESS_CONTROL_TOP_2 0x1e28
-#define PCI_0ACCESS_CONTROL_BASE_3_LOW 0c1e30
-#define PCI_0ACCESS_CONTROL_BASE_3_HIGH 0x1e34
-#define PCI_0ACCESS_CONTROL_TOP_3 0x1e38
-#define PCI_0ACCESS_CONTROL_BASE_4_LOW 0c1e40
-#define PCI_0ACCESS_CONTROL_BASE_4_HIGH 0x1e44
-#define PCI_0ACCESS_CONTROL_TOP_4 0x1e48
-#define PCI_0ACCESS_CONTROL_BASE_5_LOW 0c1e50
-#define PCI_0ACCESS_CONTROL_BASE_5_HIGH 0x1e54
-#define PCI_0ACCESS_CONTROL_TOP_5 0x1e58
-#define PCI_0ACCESS_CONTROL_BASE_6_LOW 0c1e60
-#define PCI_0ACCESS_CONTROL_BASE_6_HIGH 0x1e64
-#define PCI_0ACCESS_CONTROL_TOP_6 0x1e68
-#define PCI_0ACCESS_CONTROL_BASE_7_LOW 0c1e70
-#define PCI_0ACCESS_CONTROL_BASE_7_HIGH 0x1e74
-#define PCI_0ACCESS_CONTROL_TOP_7 0x1e78
-#define PCI_1CROSS_BAR_CONTROL_LOW 0x1d88
-#define PCI_1CROSS_BAR_CONTROL_HIGH 0x1d8c
-#define PCI_1CROSS_BAR_TIMEOUT 0x1d84
-#define PCI_1READ_RESPONSE_CROSS_BAR_CONTROL_LOW 0x1d98
-#define PCI_1READ_RESPONSE_CROSS_BAR_CONTROL_HIGH 0x1d9c
-#define PCI_1SYNC_BARRIER_VIRTUAL_REGISTER 0x1d90
-#define PCI_1P2P_CONFIGURATION 0x1d94
-#define PCI_1ACCESS_CONTROL_BASE_0_LOW 0x1e80
-#define PCI_1ACCESS_CONTROL_BASE_0_HIGH 0x1e84
-#define PCI_1ACCESS_CONTROL_TOP_0 0x1e88
-#define PCI_1ACCESS_CONTROL_BASE_1_LOW 0c1e90
-#define PCI_1ACCESS_CONTROL_BASE_1_HIGH 0x1e94
-#define PCI_1ACCESS_CONTROL_TOP_1 0x1e98
-#define PCI_1ACCESS_CONTROL_BASE_2_LOW 0c1ea0
-#define PCI_1ACCESS_CONTROL_BASE_2_HIGH 0x1ea4
-#define PCI_1ACCESS_CONTROL_TOP_2 0x1ea8
-#define PCI_1ACCESS_CONTROL_BASE_3_LOW 0c1eb0
-#define PCI_1ACCESS_CONTROL_BASE_3_HIGH 0x1eb4
-#define PCI_1ACCESS_CONTROL_TOP_3 0x1eb8
-#define PCI_1ACCESS_CONTROL_BASE_4_LOW 0c1ec0
-#define PCI_1ACCESS_CONTROL_BASE_4_HIGH 0x1ec4
-#define PCI_1ACCESS_CONTROL_TOP_4 0x1ec8
-#define PCI_1ACCESS_CONTROL_BASE_5_LOW 0c1ed0
-#define PCI_1ACCESS_CONTROL_BASE_5_HIGH 0x1ed4
-#define PCI_1ACCESS_CONTROL_TOP_5 0x1ed8
-#define PCI_1ACCESS_CONTROL_BASE_6_LOW 0c1ee0
-#define PCI_1ACCESS_CONTROL_BASE_6_HIGH 0x1ee4
-#define PCI_1ACCESS_CONTROL_TOP_6 0x1ee8
-#define PCI_1ACCESS_CONTROL_BASE_7_LOW 0c1ef0
-#define PCI_1ACCESS_CONTROL_BASE_7_HIGH 0x1ef4
-#define PCI_1ACCESS_CONTROL_TOP_7 0x1ef8
-
-/*
- * PCI Snoop Control
- */
-
-#define PCI_0SNOOP_CONTROL_BASE_0_LOW 0x1f00
-#define PCI_0SNOOP_CONTROL_BASE_0_HIGH 0x1f04
-#define PCI_0SNOOP_CONTROL_TOP_0 0x1f08
-#define PCI_0SNOOP_CONTROL_BASE_1_0_LOW 0x1f10
-#define PCI_0SNOOP_CONTROL_BASE_1_0_HIGH 0x1f14
-#define PCI_0SNOOP_CONTROL_TOP_1 0x1f18
-#define PCI_0SNOOP_CONTROL_BASE_2_0_LOW 0x1f20
-#define PCI_0SNOOP_CONTROL_BASE_2_0_HIGH 0x1f24
-#define PCI_0SNOOP_CONTROL_TOP_2 0x1f28
-#define PCI_0SNOOP_CONTROL_BASE_3_0_LOW 0x1f30
-#define PCI_0SNOOP_CONTROL_BASE_3_0_HIGH 0x1f34
-#define PCI_0SNOOP_CONTROL_TOP_3 0x1f38
-#define PCI_1SNOOP_CONTROL_BASE_0_LOW 0x1f80
-#define PCI_1SNOOP_CONTROL_BASE_0_HIGH 0x1f84
-#define PCI_1SNOOP_CONTROL_TOP_0 0x1f88
-#define PCI_1SNOOP_CONTROL_BASE_1_0_LOW 0x1f90
-#define PCI_1SNOOP_CONTROL_BASE_1_0_HIGH 0x1f94
-#define PCI_1SNOOP_CONTROL_TOP_1 0x1f98
-#define PCI_1SNOOP_CONTROL_BASE_2_0_LOW 0x1fa0
-#define PCI_1SNOOP_CONTROL_BASE_2_0_HIGH 0x1fa4
-#define PCI_1SNOOP_CONTROL_TOP_2 0x1fa8
-#define PCI_1SNOOP_CONTROL_BASE_3_0_LOW 0x1fb0
-#define PCI_1SNOOP_CONTROL_BASE_3_0_HIGH 0x1fb4
-#define PCI_1SNOOP_CONTROL_TOP_3 0x1fb8
-
-/*
- * PCI Configuration Address
- */
-
-#define PCI_0CONFIGURATION_ADDRESS 0xcf8
-#define PCI_0CONFIGURATION_DATA_VIRTUAL_REGISTER 0xcfc
-#define PCI_1CONFIGURATION_ADDRESS 0xc78
-#define PCI_1CONFIGURATION_DATA_VIRTUAL_REGISTER 0xc7c
-#define PCI_0INTERRUPT_ACKNOWLEDGE_VIRTUAL_REGISTER 0xc34
-#define PCI_1INTERRUPT_ACKNOWLEDGE_VIRTUAL_REGISTER 0xcb4
-
-/*
- * PCI Error Report
- */
-
-#define PCI_0SERR_MASK 0xc28
-#define PCI_0ERROR_ADDRESS_LOW 0x1d40
-#define PCI_0ERROR_ADDRESS_HIGH 0x1d44
-#define PCI_0ERROR_DATA_LOW 0x1d48
-#define PCI_0ERROR_DATA_HIGH 0x1d4c
-#define PCI_0ERROR_COMMAND 0x1d50
-#define PCI_0ERROR_CAUSE 0x1d58
-#define PCI_0ERROR_MASK 0x1d5c
-
-#define PCI_1SERR_MASK 0xca8
-#define PCI_1ERROR_ADDRESS_LOW 0x1dc0
-#define PCI_1ERROR_ADDRESS_HIGH 0x1dc4
-#define PCI_1ERROR_DATA_LOW 0x1dc8
-#define PCI_1ERROR_DATA_HIGH 0x1dcc
-#define PCI_1ERROR_COMMAND 0x1dd0
-#define PCI_1ERROR_CAUSE 0x1dd8
-#define PCI_1ERROR_MASK 0x1ddc
-
-
-/*
- * Lslave Debug (for internal use)
- */
-
-#define L_SLAVE_X0_ADDRESS 0x1d20
-#define L_SLAVE_X0_COMMAND_AND_ID 0x1d24
-#define L_SLAVE_X1_ADDRESS 0x1d28
-#define L_SLAVE_X1_COMMAND_AND_ID 0x1d2c
-#define L_SLAVE_WRITE_DATA_LOW 0x1d30
-#define L_SLAVE_WRITE_DATA_HIGH 0x1d34
-#define L_SLAVE_WRITE_BYTE_ENABLE 0x1d60
-#define L_SLAVE_READ_DATA_LOW 0x1d38
-#define L_SLAVE_READ_DATA_HIGH 0x1d3c
-#define L_SLAVE_READ_ID 0x1d64
-
-#if 0 /* Disabled because PCI_* namespace belongs to PCI subsystem ... */
-
-/*
- * PCI Configuration Function 0
- */
-
-#define PCI_DEVICE_AND_VENDOR_ID 0x000
-#define PCI_STATUS_AND_COMMAND 0x004
-#define PCI_CLASS_CODE_AND_REVISION_ID 0x008
-#define PCI_BIST_HEADER_TYPE_LATENCY_TIMER_CACHE_LINE 0x00C
-#define PCI_SCS_0_BASE_ADDRESS 0x010
-#define PCI_SCS_1_BASE_ADDRESS 0x014
-#define PCI_SCS_2_BASE_ADDRESS 0x018
-#define PCI_SCS_3_BASE_ADDRESS 0x01C
-#define PCI_INTERNAL_REGISTERS_MEMORY_MAPPED_BASE_ADDRESS 0x020
-#define PCI_INTERNAL_REGISTERS_I_OMAPPED_BASE_ADDRESS 0x024
-#define PCI_SUBSYSTEM_ID_AND_SUBSYSTEM_VENDOR_ID 0x02C
-#define PCI_EXPANSION_ROM_BASE_ADDRESS_REGISTER 0x030
-#define PCI_CAPABILTY_LIST_POINTER 0x034
-#define PCI_INTERRUPT_PIN_AND_LINE 0x03C
-#define PCI_POWER_MANAGEMENT_CAPABILITY 0x040
-#define PCI_POWER_MANAGEMENT_STATUS_AND_CONTROL 0x044
-#define PCI_VPD_ADDRESS 0x048
-#define PCI_VPD_DATA 0X04c
-#define PCI_MSI_MESSAGE_CONTROL 0x050
-#define PCI_MSI_MESSAGE_ADDRESS 0x054
-#define PCI_MSI_MESSAGE_UPPER_ADDRESS 0x058
-#define PCI_MSI_MESSAGE_DATA 0x05c
-#define PCI_COMPACT_PCI_HOT_SWAP_CAPABILITY 0x058
-
-/*
- * PCI Configuration Function 1
- */
-
-#define PCI_CS_0_BASE_ADDRESS 0x110
-#define PCI_CS_1_BASE_ADDRESS 0x114
-#define PCI_CS_2_BASE_ADDRESS 0x118
-#define PCI_CS_3_BASE_ADDRESS 0x11c
-#define PCI_BOOTCS_BASE_ADDRESS 0x120
-
-/*
- * PCI Configuration Function 2
- */
-
-#define PCI_P2P_MEM0_BASE_ADDRESS 0x210
-#define PCI_P2P_MEM1_BASE_ADDRESS 0x214
-#define PCI_P2P_I_O_BASE_ADDRESS 0x218
-#define PCI_CPU_BASE_ADDRESS 0x21c
-
-/*
- * PCI Configuration Function 4
- */
-
-#define PCI_DAC_SCS_0_BASE_ADDRESS_LOW 0x410
-#define PCI_DAC_SCS_0_BASE_ADDRESS_HIGH 0x414
-#define PCI_DAC_SCS_1_BASE_ADDRESS_LOW 0x418
-#define PCI_DAC_SCS_1_BASE_ADDRESS_HIGH 0x41c
-#define PCI_DAC_P2P_MEM0_BASE_ADDRESS_LOW 0x420
-#define PCI_DAC_P2P_MEM0_BASE_ADDRESS_HIGH 0x424
-
-
-/*
- * PCI Configuration Function 5
- */
-
-#define PCI_DAC_SCS_2_BASE_ADDRESS_LOW 0x510
-#define PCI_DAC_SCS_2_BASE_ADDRESS_HIGH 0x514
-#define PCI_DAC_SCS_3_BASE_ADDRESS_LOW 0x518
-#define PCI_DAC_SCS_3_BASE_ADDRESS_HIGH 0x51c
-#define PCI_DAC_P2P_MEM1_BASE_ADDRESS_LOW 0x520
-#define PCI_DAC_P2P_MEM1_BASE_ADDRESS_HIGH 0x524
-
-
-/*
- * PCI Configuration Function 6
- */
-
-#define PCI_DAC_CS_0_BASE_ADDRESS_LOW 0x610
-#define PCI_DAC_CS_0_BASE_ADDRESS_HIGH 0x614
-#define PCI_DAC_CS_1_BASE_ADDRESS_LOW 0x618
-#define PCI_DAC_CS_1_BASE_ADDRESS_HIGH 0x61c
-#define PCI_DAC_CS_2_BASE_ADDRESS_LOW 0x620
-#define PCI_DAC_CS_2_BASE_ADDRESS_HIGH 0x624
-
-/*
- * PCI Configuration Function 7
- */
-
-#define PCI_DAC_CS_3_BASE_ADDRESS_LOW 0x710
-#define PCI_DAC_CS_3_BASE_ADDRESS_HIGH 0x714
-#define PCI_DAC_BOOTCS_BASE_ADDRESS_LOW 0x718
-#define PCI_DAC_BOOTCS_BASE_ADDRESS_HIGH 0x71c
-#define PCI_DAC_CPU_BASE_ADDRESS_LOW 0x720
-#define PCI_DAC_CPU_BASE_ADDRESS_HIGH 0x724
-#endif
-
-/*
- * Interrupts
- */
-
-#define LOW_INTERRUPT_CAUSE_REGISTER 0xc18
-#define HIGH_INTERRUPT_CAUSE_REGISTER 0xc68
-#define CPU_INTERRUPT_MASK_REGISTER_LOW 0xc1c
-#define CPU_INTERRUPT_MASK_REGISTER_HIGH 0xc6c
-#define CPU_SELECT_CAUSE_REGISTER 0xc70
-#define PCI_0INTERRUPT_CAUSE_MASK_REGISTER_LOW 0xc24
-#define PCI_0INTERRUPT_CAUSE_MASK_REGISTER_HIGH 0xc64
-#define PCI_0SELECT_CAUSE 0xc74
-#define PCI_1INTERRUPT_CAUSE_MASK_REGISTER_LOW 0xca4
-#define PCI_1INTERRUPT_CAUSE_MASK_REGISTER_HIGH 0xce4
-#define PCI_1SELECT_CAUSE 0xcf4
-#define CPU_INT_0_MASK 0xe60
-#define CPU_INT_1_MASK 0xe64
-#define CPU_INT_2_MASK 0xe68
-#define CPU_INT_3_MASK 0xe6c
-
-/*
- * I20 Support registers
- */
-
-#define INBOUND_MESSAGE_REGISTER0_PCI0_SIDE 0x010
-#define INBOUND_MESSAGE_REGISTER1_PCI0_SIDE 0x014
-#define OUTBOUND_MESSAGE_REGISTER0_PCI0_SIDE 0x018
-#define OUTBOUND_MESSAGE_REGISTER1_PCI0_SIDE 0x01C
-#define INBOUND_DOORBELL_REGISTER_PCI0_SIDE 0x020
-#define INBOUND_INTERRUPT_CAUSE_REGISTER_PCI0_SIDE 0x024
-#define INBOUND_INTERRUPT_MASK_REGISTER_PCI0_SIDE 0x028
-#define OUTBOUND_DOORBELL_REGISTER_PCI0_SIDE 0x02C
-#define OUTBOUND_INTERRUPT_CAUSE_REGISTER_PCI0_SIDE 0x030
-#define OUTBOUND_INTERRUPT_MASK_REGISTER_PCI0_SIDE 0x034
-#define INBOUND_QUEUE_PORT_VIRTUAL_REGISTER_PCI0_SIDE 0x040
-#define OUTBOUND_QUEUE_PORT_VIRTUAL_REGISTER_PCI0_SIDE 0x044
-#define QUEUE_CONTROL_REGISTER_PCI0_SIDE 0x050
-#define QUEUE_BASE_ADDRESS_REGISTER_PCI0_SIDE 0x054
-#define INBOUND_FREE_HEAD_POINTER_REGISTER_PCI0_SIDE 0x060
-#define INBOUND_FREE_TAIL_POINTER_REGISTER_PCI0_SIDE 0x064
-#define INBOUND_POST_HEAD_POINTER_REGISTER_PCI0_SIDE 0x068
-#define INBOUND_POST_TAIL_POINTER_REGISTER_PCI0_SIDE 0x06C
-#define OUTBOUND_FREE_HEAD_POINTER_REGISTER_PCI0_SIDE 0x070
-#define OUTBOUND_FREE_TAIL_POINTER_REGISTER_PCI0_SIDE 0x074
-#define OUTBOUND_POST_HEAD_POINTER_REGISTER_PCI0_SIDE 0x0F8
-#define OUTBOUND_POST_TAIL_POINTER_REGISTER_PCI0_SIDE 0x0FC
-
-#define INBOUND_MESSAGE_REGISTER0_PCI1_SIDE 0x090
-#define INBOUND_MESSAGE_REGISTER1_PCI1_SIDE 0x094
-#define OUTBOUND_MESSAGE_REGISTER0_PCI1_SIDE 0x098
-#define OUTBOUND_MESSAGE_REGISTER1_PCI1_SIDE 0x09C
-#define INBOUND_DOORBELL_REGISTER_PCI1_SIDE 0x0A0
-#define INBOUND_INTERRUPT_CAUSE_REGISTER_PCI1_SIDE 0x0A4
-#define INBOUND_INTERRUPT_MASK_REGISTER_PCI1_SIDE 0x0A8
-#define OUTBOUND_DOORBELL_REGISTER_PCI1_SIDE 0x0AC
-#define OUTBOUND_INTERRUPT_CAUSE_REGISTER_PCI1_SIDE 0x0B0
-#define OUTBOUND_INTERRUPT_MASK_REGISTER_PCI1_SIDE 0x0B4
-#define INBOUND_QUEUE_PORT_VIRTUAL_REGISTER_PCI1_SIDE 0x0C0
-#define OUTBOUND_QUEUE_PORT_VIRTUAL_REGISTER_PCI1_SIDE 0x0C4
-#define QUEUE_CONTROL_REGISTER_PCI1_SIDE 0x0D0
-#define QUEUE_BASE_ADDRESS_REGISTER_PCI1_SIDE 0x0D4
-#define INBOUND_FREE_HEAD_POINTER_REGISTER_PCI1_SIDE 0x0E0
-#define INBOUND_FREE_TAIL_POINTER_REGISTER_PCI1_SIDE 0x0E4
-#define INBOUND_POST_HEAD_POINTER_REGISTER_PCI1_SIDE 0x0E8
-#define INBOUND_POST_TAIL_POINTER_REGISTER_PCI1_SIDE 0x0EC
-#define OUTBOUND_FREE_HEAD_POINTER_REGISTER_PCI1_SIDE 0x0F0
-#define OUTBOUND_FREE_TAIL_POINTER_REGISTER_PCI1_SIDE 0x0F4
-#define OUTBOUND_POST_HEAD_POINTER_REGISTER_PCI1_SIDE 0x078
-#define OUTBOUND_POST_TAIL_POINTER_REGISTER_PCI1_SIDE 0x07C
-
-#define INBOUND_MESSAGE_REGISTER0_CPU0_SIDE 0X1C10
-#define INBOUND_MESSAGE_REGISTER1_CPU0_SIDE 0X1C14
-#define OUTBOUND_MESSAGE_REGISTER0_CPU0_SIDE 0X1C18
-#define OUTBOUND_MESSAGE_REGISTER1_CPU0_SIDE 0X1C1C
-#define INBOUND_DOORBELL_REGISTER_CPU0_SIDE 0X1C20
-#define INBOUND_INTERRUPT_CAUSE_REGISTER_CPU0_SIDE 0X1C24
-#define INBOUND_INTERRUPT_MASK_REGISTER_CPU0_SIDE 0X1C28
-#define OUTBOUND_DOORBELL_REGISTER_CPU0_SIDE 0X1C2C
-#define OUTBOUND_INTERRUPT_CAUSE_REGISTER_CPU0_SIDE 0X1C30
-#define OUTBOUND_INTERRUPT_MASK_REGISTER_CPU0_SIDE 0X1C34
-#define INBOUND_QUEUE_PORT_VIRTUAL_REGISTER_CPU0_SIDE 0X1C40
-#define OUTBOUND_QUEUE_PORT_VIRTUAL_REGISTER_CPU0_SIDE 0X1C44
-#define QUEUE_CONTROL_REGISTER_CPU0_SIDE 0X1C50
-#define QUEUE_BASE_ADDRESS_REGISTER_CPU0_SIDE 0X1C54
-#define INBOUND_FREE_HEAD_POINTER_REGISTER_CPU0_SIDE 0X1C60
-#define INBOUND_FREE_TAIL_POINTER_REGISTER_CPU0_SIDE 0X1C64
-#define INBOUND_POST_HEAD_POINTER_REGISTER_CPU0_SIDE 0X1C68
-#define INBOUND_POST_TAIL_POINTER_REGISTER_CPU0_SIDE 0X1C6C
-#define OUTBOUND_FREE_HEAD_POINTER_REGISTER_CPU0_SIDE 0X1C70
-#define OUTBOUND_FREE_TAIL_POINTER_REGISTER_CPU0_SIDE 0X1C74
-#define OUTBOUND_POST_HEAD_POINTER_REGISTER_CPU0_SIDE 0X1CF8
-#define OUTBOUND_POST_TAIL_POINTER_REGISTER_CPU0_SIDE 0X1CFC
-
-#define INBOUND_MESSAGE_REGISTER0_CPU1_SIDE 0X1C90
-#define INBOUND_MESSAGE_REGISTER1_CPU1_SIDE 0X1C94
-#define OUTBOUND_MESSAGE_REGISTER0_CPU1_SIDE 0X1C98
-#define OUTBOUND_MESSAGE_REGISTER1_CPU1_SIDE 0X1C9C
-#define INBOUND_DOORBELL_REGISTER_CPU1_SIDE 0X1CA0
-#define INBOUND_INTERRUPT_CAUSE_REGISTER_CPU1_SIDE 0X1CA4
-#define INBOUND_INTERRUPT_MASK_REGISTER_CPU1_SIDE 0X1CA8
-#define OUTBOUND_DOORBELL_REGISTER_CPU1_SIDE 0X1CAC
-#define OUTBOUND_INTERRUPT_CAUSE_REGISTER_CPU1_SIDE 0X1CB0
-#define OUTBOUND_INTERRUPT_MASK_REGISTER_CPU1_SIDE 0X1CB4
-#define INBOUND_QUEUE_PORT_VIRTUAL_REGISTER_CPU1_SIDE 0X1CC0
-#define OUTBOUND_QUEUE_PORT_VIRTUAL_REGISTER_CPU1_SIDE 0X1CC4
-#define QUEUE_CONTROL_REGISTER_CPU1_SIDE 0X1CD0
-#define QUEUE_BASE_ADDRESS_REGISTER_CPU1_SIDE 0X1CD4
-#define INBOUND_FREE_HEAD_POINTER_REGISTER_CPU1_SIDE 0X1CE0
-#define INBOUND_FREE_TAIL_POINTER_REGISTER_CPU1_SIDE 0X1CE4
-#define INBOUND_POST_HEAD_POINTER_REGISTER_CPU1_SIDE 0X1CE8
-#define INBOUND_POST_TAIL_POINTER_REGISTER_CPU1_SIDE 0X1CEC
-#define OUTBOUND_FREE_HEAD_POINTER_REGISTER_CPU1_SIDE 0X1CF0
-#define OUTBOUND_FREE_TAIL_POINTER_REGISTER_CPU1_SIDE 0X1CF4
-#define OUTBOUND_POST_HEAD_POINTER_REGISTER_CPU1_SIDE 0X1C78
-#define OUTBOUND_POST_TAIL_POINTER_REGISTER_CPU1_SIDE 0X1C7C
-
-/*
- * Communication Unit Registers
- */
-
-#define ETHERNET_0_ADDRESS_CONTROL_LOW
-#define ETHERNET_0_ADDRESS_CONTROL_HIGH 0xf204
-#define ETHERNET_0_RECEIVE_BUFFER_PCI_HIGH_ADDRESS 0xf208
-#define ETHERNET_0_TRANSMIT_BUFFER_PCI_HIGH_ADDRESS 0xf20c
-#define ETHERNET_0_RECEIVE_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf210
-#define ETHERNET_0_TRANSMIT_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf214
-#define ETHERNET_0_HASH_TABLE_PCI_HIGH_ADDRESS 0xf218
-#define ETHERNET_1_ADDRESS_CONTROL_LOW 0xf220
-#define ETHERNET_1_ADDRESS_CONTROL_HIGH 0xf224
-#define ETHERNET_1_RECEIVE_BUFFER_PCI_HIGH_ADDRESS 0xf228
-#define ETHERNET_1_TRANSMIT_BUFFER_PCI_HIGH_ADDRESS 0xf22c
-#define ETHERNET_1_RECEIVE_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf230
-#define ETHERNET_1_TRANSMIT_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf234
-#define ETHERNET_1_HASH_TABLE_PCI_HIGH_ADDRESS 0xf238
-#define ETHERNET_2_ADDRESS_CONTROL_LOW 0xf240
-#define ETHERNET_2_ADDRESS_CONTROL_HIGH 0xf244
-#define ETHERNET_2_RECEIVE_BUFFER_PCI_HIGH_ADDRESS 0xf248
-#define ETHERNET_2_TRANSMIT_BUFFER_PCI_HIGH_ADDRESS 0xf24c
-#define ETHERNET_2_RECEIVE_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf250
-#define ETHERNET_2_TRANSMIT_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf254
-#define ETHERNET_2_HASH_TABLE_PCI_HIGH_ADDRESS 0xf258
-#define MPSC_0_ADDRESS_CONTROL_LOW 0xf280
-#define MPSC_0_ADDRESS_CONTROL_HIGH 0xf284
-#define MPSC_0_RECEIVE_BUFFER_PCI_HIGH_ADDRESS 0xf288
-#define MPSC_0_TRANSMIT_BUFFER_PCI_HIGH_ADDRESS 0xf28c
-#define MPSC_0_RECEIVE_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf290
-#define MPSC_0_TRANSMIT_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf294
-#define MPSC_1_ADDRESS_CONTROL_LOW 0xf2a0
-#define MPSC_1_ADDRESS_CONTROL_HIGH 0xf2a4
-#define MPSC_1_RECEIVE_BUFFER_PCI_HIGH_ADDRESS 0xf2a8
-#define MPSC_1_TRANSMIT_BUFFER_PCI_HIGH_ADDRESS 0xf2ac
-#define MPSC_1_RECEIVE_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf2b0
-#define MPSC_1_TRANSMIT_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf2b4
-#define MPSC_2_ADDRESS_CONTROL_LOW 0xf2c0
-#define MPSC_2_ADDRESS_CONTROL_HIGH 0xf2c4
-#define MPSC_2_RECEIVE_BUFFER_PCI_HIGH_ADDRESS 0xf2c8
-#define MPSC_2_TRANSMIT_BUFFER_PCI_HIGH_ADDRESS 0xf2cc
-#define MPSC_2_RECEIVE_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf2d0
-#define MPSC_2_TRANSMIT_DESCRIPTOR_PCI_HIGH_ADDRESS 0xf2d4
-#define SERIAL_INIT_PCI_HIGH_ADDRESS 0xf320
-#define SERIAL_INIT_LAST_DATA 0xf324
-#define SERIAL_INIT_STATUS_AND_CONTROL 0xf328
-#define COMM_UNIT_ARBITER_CONTROL 0xf300
-#define COMM_UNIT_CROSS_BAR_TIMEOUT 0xf304
-#define COMM_UNIT_INTERRUPT_CAUSE 0xf310
-#define COMM_UNIT_INTERRUPT_MASK 0xf314
-#define COMM_UNIT_ERROR_ADDRESS 0xf314
-
-/*
- * Cunit Debug (for internal use)
- */
-
-#define CUNIT_ADDRESS 0xf340
-#define CUNIT_COMMAND_AND_ID 0xf344
-#define CUNIT_WRITE_DATA_LOW 0xf348
-#define CUNIT_WRITE_DATA_HIGH 0xf34c
-#define CUNIT_WRITE_BYTE_ENABLE 0xf358
-#define CUNIT_READ_DATA_LOW 0xf350
-#define CUNIT_READ_DATA_HIGH 0xf354
-#define CUNIT_READ_ID 0xf35c
-
-/*
- * Fast Ethernet Unit Registers
- */
-
-/* Ethernet */
-
-#define ETHERNET_PHY_ADDRESS_REGISTER 0x2000
-#define ETHERNET_SMI_REGISTER 0x2010
-
-/* Ethernet 0 */
-
-#define ETHERNET0_PORT_CONFIGURATION_REGISTER 0x2400
-#define ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER 0x2408
-#define ETHERNET0_PORT_COMMAND_REGISTER 0x2410
-#define ETHERNET0_PORT_STATUS_REGISTER 0x2418
-#define ETHERNET0_SERIAL_PARAMETRS_REGISTER 0x2420
-#define ETHERNET0_HASH_TABLE_POINTER_REGISTER 0x2428
-#define ETHERNET0_FLOW_CONTROL_SOURCE_ADDRESS_LOW 0x2430
-#define ETHERNET0_FLOW_CONTROL_SOURCE_ADDRESS_HIGH 0x2438
-#define ETHERNET0_SDMA_CONFIGURATION_REGISTER 0x2440
-#define ETHERNET0_SDMA_COMMAND_REGISTER 0x2448
-#define ETHERNET0_INTERRUPT_CAUSE_REGISTER 0x2450
-#define ETHERNET0_INTERRUPT_MASK_REGISTER 0x2458
-#define ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 0x2480
-#define ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER1 0x2484
-#define ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER2 0x2488
-#define ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER3 0x248c
-#define ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 0x24a0
-#define ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER1 0x24a4
-#define ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER2 0x24a8
-#define ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER3 0x24ac
-#define ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 0x24e0
-#define ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER1 0x24e4
-#define ETHERNET0_MIB_COUNTER_BASE 0x2500
-
-/* Ethernet 1 */
-
-#define ETHERNET1_PORT_CONFIGURATION_REGISTER 0x2800
-#define ETHERNET1_PORT_CONFIGURATION_EXTEND_REGISTER 0x2808
-#define ETHERNET1_PORT_COMMAND_REGISTER 0x2810
-#define ETHERNET1_PORT_STATUS_REGISTER 0x2818
-#define ETHERNET1_SERIAL_PARAMETRS_REGISTER 0x2820
-#define ETHERNET1_HASH_TABLE_POINTER_REGISTER 0x2828
-#define ETHERNET1_FLOW_CONTROL_SOURCE_ADDRESS_LOW 0x2830
-#define ETHERNET1_FLOW_CONTROL_SOURCE_ADDRESS_HIGH 0x2838
-#define ETHERNET1_SDMA_CONFIGURATION_REGISTER 0x2840
-#define ETHERNET1_SDMA_COMMAND_REGISTER 0x2848
-#define ETHERNET1_INTERRUPT_CAUSE_REGISTER 0x2850
-#define ETHERNET1_INTERRUPT_MASK_REGISTER 0x2858
-#define ETHERNET1_FIRST_RX_DESCRIPTOR_POINTER0 0x2880
-#define ETHERNET1_FIRST_RX_DESCRIPTOR_POINTER1 0x2884
-#define ETHERNET1_FIRST_RX_DESCRIPTOR_POINTER2 0x2888
-#define ETHERNET1_FIRST_RX_DESCRIPTOR_POINTER3 0x288c
-#define ETHERNET1_CURRENT_RX_DESCRIPTOR_POINTER0 0x28a0
-#define ETHERNET1_CURRENT_RX_DESCRIPTOR_POINTER1 0x28a4
-#define ETHERNET1_CURRENT_RX_DESCRIPTOR_POINTER2 0x28a8
-#define ETHERNET1_CURRENT_RX_DESCRIPTOR_POINTER3 0x28ac
-#define ETHERNET1_CURRENT_TX_DESCRIPTOR_POINTER0 0x28e0
-#define ETHERNET1_CURRENT_TX_DESCRIPTOR_POINTER1 0x28e4
-#define ETHERNET1_MIB_COUNTER_BASE 0x2900
-
-/* Ethernet 2 */
-
-#define ETHERNET2_PORT_CONFIGURATION_REGISTER 0x2c00
-#define ETHERNET2_PORT_CONFIGURATION_EXTEND_REGISTER 0x2c08
-#define ETHERNET2_PORT_COMMAND_REGISTER 0x2c10
-#define ETHERNET2_PORT_STATUS_REGISTER 0x2c18
-#define ETHERNET2_SERIAL_PARAMETRS_REGISTER 0x2c20
-#define ETHERNET2_HASH_TABLE_POINTER_REGISTER 0x2c28
-#define ETHERNET2_FLOW_CONTROL_SOURCE_ADDRESS_LOW 0x2c30
-#define ETHERNET2_FLOW_CONTROL_SOURCE_ADDRESS_HIGH 0x2c38
-#define ETHERNET2_SDMA_CONFIGURATION_REGISTER 0x2c40
-#define ETHERNET2_SDMA_COMMAND_REGISTER 0x2c48
-#define ETHERNET2_INTERRUPT_CAUSE_REGISTER 0x2c50
-#define ETHERNET2_INTERRUPT_MASK_REGISTER 0x2c58
-#define ETHERNET2_FIRST_RX_DESCRIPTOR_POINTER0 0x2c80
-#define ETHERNET2_FIRST_RX_DESCRIPTOR_POINTER1 0x2c84
-#define ETHERNET2_FIRST_RX_DESCRIPTOR_POINTER2 0x2c88
-#define ETHERNET2_FIRST_RX_DESCRIPTOR_POINTER3 0x2c8c
-#define ETHERNET2_CURRENT_RX_DESCRIPTOR_POINTER0 0x2ca0
-#define ETHERNET2_CURRENT_RX_DESCRIPTOR_POINTER1 0x2ca4
-#define ETHERNET2_CURRENT_RX_DESCRIPTOR_POINTER2 0x2ca8
-#define ETHERNET2_CURRENT_RX_DESCRIPTOR_POINTER3 0x2cac
-#define ETHERNET2_CURRENT_TX_DESCRIPTOR_POINTER0 0x2ce0
-#define ETHERNET2_CURRENT_TX_DESCRIPTOR_POINTER1 0x2ce4
-#define ETHERNET2_MIB_COUNTER_BASE 0x2d00
-
-/*
- * SDMA Registers
- */
-
-#define SDMA_GROUP_CONFIGURATION_REGISTER 0xb1f0
-#define CHANNEL0_CONFIGURATION_REGISTER 0x4000
-#define CHANNEL0_COMMAND_REGISTER 0x4008
-#define CHANNEL0_RX_CMD_STATUS 0x4800
-#define CHANNEL0_RX_PACKET_AND_BUFFER_SIZES 0x4804
-#define CHANNEL0_RX_BUFFER_POINTER 0x4808
-#define CHANNEL0_RX_NEXT_POINTER 0x480c
-#define CHANNEL0_CURRENT_RX_DESCRIPTOR_POINTER 0x4810
-#define CHANNEL0_TX_CMD_STATUS 0x4C00
-#define CHANNEL0_TX_PACKET_SIZE 0x4C04
-#define CHANNEL0_TX_BUFFER_POINTER 0x4C08
-#define CHANNEL0_TX_NEXT_POINTER 0x4C0c
-#define CHANNEL0_CURRENT_TX_DESCRIPTOR_POINTER 0x4c10
-#define CHANNEL0_FIRST_TX_DESCRIPTOR_POINTER 0x4c14
-#define CHANNEL1_CONFIGURATION_REGISTER 0x6000
-#define CHANNEL1_COMMAND_REGISTER 0x6008
-#define CHANNEL1_RX_CMD_STATUS 0x6800
-#define CHANNEL1_RX_PACKET_AND_BUFFER_SIZES 0x6804
-#define CHANNEL1_RX_BUFFER_POINTER 0x6808
-#define CHANNEL1_RX_NEXT_POINTER 0x680c
-#define CHANNEL1_CURRENT_RX_DESCRIPTOR_POINTER 0x6810
-#define CHANNEL1_TX_CMD_STATUS 0x6C00
-#define CHANNEL1_TX_PACKET_SIZE 0x6C04
-#define CHANNEL1_TX_BUFFER_POINTER 0x6C08
-#define CHANNEL1_TX_NEXT_POINTER 0x6C0c
-#define CHANNEL1_CURRENT_RX_DESCRIPTOR_POINTER 0x6810
-#define CHANNEL1_CURRENT_TX_DESCRIPTOR_POINTER 0x6c10
-#define CHANNEL1_FIRST_TX_DESCRIPTOR_POINTER 0x6c14
-
-/* SDMA Interrupt */
-
-#define SDMA_CAUSE 0xb820
-#define SDMA_MASK 0xb8a0
-
-
-/*
- * Baude Rate Generators Registers
- */
-
-/* BRG 0 */
-
-#define BRG0_CONFIGURATION_REGISTER 0xb200
-#define BRG0_BAUDE_TUNING_REGISTER 0xb204
-
-/* BRG 1 */
-
-#define BRG1_CONFIGURATION_REGISTER 0xb208
-#define BRG1_BAUDE_TUNING_REGISTER 0xb20c
-
-/* BRG 2 */
-
-#define BRG2_CONFIGURATION_REGISTER 0xb210
-#define BRG2_BAUDE_TUNING_REGISTER 0xb214
-
-/* BRG Interrupts */
-
-#define BRG_CAUSE_REGISTER 0xb834
-#define BRG_MASK_REGISTER 0xb8b4
-
-/* MISC */
-
-#define MAIN_ROUTING_REGISTER 0xb400
-#define RECEIVE_CLOCK_ROUTING_REGISTER 0xb404
-#define TRANSMIT_CLOCK_ROUTING_REGISTER 0xb408
-#define COMM_UNIT_ARBITER_CONFIGURATION_REGISTER 0xb40c
-#define WATCHDOG_CONFIGURATION_REGISTER 0xb410
-#define WATCHDOG_VALUE_REGISTER 0xb414
-
-
-/*
- * Flex TDM Registers
- */
-
-/* FTDM Port */
-
-#define FLEXTDM_TRANSMIT_READ_POINTER 0xa800
-#define FLEXTDM_RECEIVE_READ_POINTER 0xa804
-#define FLEXTDM_CONFIGURATION_REGISTER 0xa808
-#define FLEXTDM_AUX_CHANNELA_TX_REGISTER 0xa80c
-#define FLEXTDM_AUX_CHANNELA_RX_REGISTER 0xa810
-#define FLEXTDM_AUX_CHANNELB_TX_REGISTER 0xa814
-#define FLEXTDM_AUX_CHANNELB_RX_REGISTER 0xa818
-
-/* FTDM Interrupts */
-
-#define FTDM_CAUSE_REGISTER 0xb830
-#define FTDM_MASK_REGISTER 0xb8b0
-
-
-/*
- * GPP Interface Registers
- */
-
-#define GPP_IO_CONTROL 0xf100
-#define GPP_LEVEL_CONTROL 0xf110
-#define GPP_VALUE 0xf104
-#define GPP_INTERRUPT_CAUSE 0xf108
-#define GPP_INTERRUPT_MASK 0xf10c
-
-#define MPP_CONTROL0 0xf000
-#define MPP_CONTROL1 0xf004
-#define MPP_CONTROL2 0xf008
-#define MPP_CONTROL3 0xf00c
-#define DEBUG_PORT_MULTIPLEX 0xf014
-#define SERIAL_PORT_MULTIPLEX 0xf010
-
-/*
- * I2C Registers
- */
-
-#define I2C_SLAVE_ADDRESS 0xc000
-#define I2C_EXTENDED_SLAVE_ADDRESS 0xc040
-#define I2C_DATA 0xc004
-#define I2C_CONTROL 0xc008
-#define I2C_STATUS_BAUDE_RATE 0xc00C
-#define I2C_SOFT_RESET 0xc01c
-
-/*
- * MPSC Registers
- */
-
-/*
- * MPSC0
- */
-
-#define MPSC0_MAIN_CONFIGURATION_LOW 0x8000
-#define MPSC0_MAIN_CONFIGURATION_HIGH 0x8004
-#define MPSC0_PROTOCOL_CONFIGURATION 0x8008
-#define CHANNEL0_REGISTER1 0x800c
-#define CHANNEL0_REGISTER2 0x8010
-#define CHANNEL0_REGISTER3 0x8014
-#define CHANNEL0_REGISTER4 0x8018
-#define CHANNEL0_REGISTER5 0x801c
-#define CHANNEL0_REGISTER6 0x8020
-#define CHANNEL0_REGISTER7 0x8024
-#define CHANNEL0_REGISTER8 0x8028
-#define CHANNEL0_REGISTER9 0x802c
-#define CHANNEL0_REGISTER10 0x8030
-#define CHANNEL0_REGISTER11 0x8034
-
-/*
- * MPSC1
- */
-
-#define MPSC1_MAIN_CONFIGURATION_LOW 0x9000
-#define MPSC1_MAIN_CONFIGURATION_HIGH 0x9004
-#define MPSC1_PROTOCOL_CONFIGURATION 0x9008
-#define CHANNEL1_REGISTER1 0x900c
-#define CHANNEL1_REGISTER2 0x9010
-#define CHANNEL1_REGISTER3 0x9014
-#define CHANNEL1_REGISTER4 0x9018
-#define CHANNEL1_REGISTER5 0x901c
-#define CHANNEL1_REGISTER6 0x9020
-#define CHANNEL1_REGISTER7 0x9024
-#define CHANNEL1_REGISTER8 0x9028
-#define CHANNEL1_REGISTER9 0x902c
-#define CHANNEL1_REGISTER10 0x9030
-#define CHANNEL1_REGISTER11 0x9034
-
-/*
- * MPSCs Interupts
- */
-
-#define MPSC0_CAUSE 0xb804
-#define MPSC0_MASK 0xb884
-#define MPSC1_CAUSE 0xb80c
-#define MPSC1_MASK 0xb88c
-
-#endif /* __ASM_MIPS_MV64240_H */
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2003, 2004 Ralf Baechle
- */
-#ifndef __ASM_MACH_YOSEMITE_CPU_FEATURE_OVERRIDES_H
-#define __ASM_MACH_YOSEMITE_CPU_FEATURE_OVERRIDES_H
-
-/*
- * Momentum Jaguar ATX always has the RM9000 processor.
- */
-#define cpu_has_watch 1
-#define cpu_has_mips16 0
-#define cpu_has_divec 0
-#define cpu_has_vce 0
-#define cpu_has_cache_cdex_p 0
-#define cpu_has_cache_cdex_s 0
-#define cpu_has_prefetch 1
-#define cpu_has_mcheck 0
-#define cpu_has_ejtag 0
-
-#define cpu_has_llsc 1
-#define cpu_has_vtag_icache 0
-#define cpu_has_dc_aliases 0
-#define cpu_has_ic_fills_f_dc 0
-
-#define cpu_has_nofpuex 0
-#define cpu_has_64bits 1
-
-#define cpu_has_subset_pcaches 0
-
-#define cpu_dcache_line_size() 32
-#define cpu_icache_line_size() 32
-#define cpu_scache_line_size() 32
-
-#endif /* __ASM_MACH_YOSEMITE_CPU_FEATURE_OVERRIDES_H */
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2004 by Ralf Baechle
- */
-#ifndef __ASM_MIPS_MARVELL_H
-#define __ASM_MIPS_MARVELL_H
-
-#include <linux/pci.h>
-
-#include <asm/byteorder.h>
-#include <asm/pci_channel.h>
-
-extern unsigned long marvell_base;
-
-/*
- * Because of an error/peculiarity in the Galileo chip, we need to swap the
- * bytes when running bigendian.
- */
-#define __MV_READ(ofs) \
- (*(volatile u32 *)(marvell_base+(ofs)))
-#define __MV_WRITE(ofs, data) \
- do { *(volatile u32 *)(marvell_base+(ofs)) = (data); } while (0)
-
-#define MV_READ(ofs) le32_to_cpu(__MV_READ(ofs))
-#define MV_WRITE(ofs, data) __MV_WRITE(ofs, cpu_to_le32(data))
-
-#define MV_READ_16(ofs) \
- le16_to_cpu(*(volatile u16 *)(marvell_base+(ofs)))
-#define MV_WRITE_16(ofs, data) \
- *(volatile u16 *)(marvell_base+(ofs)) = cpu_to_le16(data)
-
-#define MV_READ_8(ofs) \
- *(volatile u8 *)(marvell_base+(ofs))
-#define MV_WRITE_8(ofs, data) \
- *(volatile u8 *)(marvell_base+(ofs)) = data
-
-#define MV_SET_REG_BITS(ofs, bits) \
- (*((volatile u32 *)(marvell_base + (ofs)))) |= ((u32)cpu_to_le32(bits))
-#define MV_RESET_REG_BITS(ofs, bits) \
- (*((volatile u32 *)(marvell_base + (ofs)))) &= ~((u32)cpu_to_le32(bits))
-
-extern struct pci_ops mv_pci_ops;
-
-struct mv_pci_controller {
- struct pci_controller pcic;
-
- /*
- * GT-64240/MV-64340 specific, per host bus information
- */
- unsigned long config_addr;
- unsigned long config_vreg;
-};
-
-#endif /* __ASM_MIPS_MARVELL_H */
+++ /dev/null
-#ifndef __ASM_RMAP_H
-#define __ASM_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif /* __ASM_RMAP_H */
+++ /dev/null
-#ifdef __KERNEL__
-#ifndef _MIPS_SETUP_H
-#define _MIPS_SETUP_H
-
-#define COMMAND_LINE_SIZE 256
-
-#endif /* __SETUP_H */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * tb0219.h, Include file for TANBAC TB0219.
- *
- * Copyright (C) 2002-2004 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
- *
- * Modified for TANBAC TB0219:
- * Copyright (C) 2003 Megasolution Inc. <matsu@megasolution.jp>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#ifndef __TANBAC_TB0219_H
-#define __TANBAC_TB0219_H
-
-#include <asm/vr41xx/vr41xx.h>
-
-/*
- * General-Purpose I/O Pin Number
- */
-#define TB0219_PCI_SLOT1_PIN 2
-#define TB0219_PCI_SLOT2_PIN 3
-#define TB0219_PCI_SLOT3_PIN 4
-
-/*
- * Interrupt Number
- */
-#define TB0219_PCI_SLOT1_IRQ GIU_IRQ(TB0219_PCI_SLOT1_PIN)
-#define TB0219_PCI_SLOT2_IRQ GIU_IRQ(TB0219_PCI_SLOT2_PIN)
-#define TB0219_PCI_SLOT3_IRQ GIU_IRQ(TB0219_PCI_SLOT3_PIN)
-
-#endif /* __TANBAC_TB0219_H */
+++ /dev/null
-#ifndef _ASM_MAX_NUMNODES_H
-#define _ASM_MAX_NUMNODES_H
-
-#include <linux/config.h>
-
-/* Max 8 Nodes */
-#define NODES_SHIFT 3
-
-#endif /* _ASM_MAX_NUMNODES_H */
+++ /dev/null
-#ifndef _PARISC_RMAP_H
-#define _PARISC_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-/*
- * Communication Processor Module v2.
- *
- * This file contains structures and information for the communication
- * processor channels found in the dual port RAM or parameter RAM.
- * All CPM control and status is available through the CPM2 internal
- * memory map. See immap_cpm2.h for details.
- */
-#ifdef __KERNEL__
-#ifndef __CPM2__
-#define __CPM2__
-
-#include <asm/immap_cpm2.h>
-
-/* CPM Command register.
-*/
-#define CPM_CR_RST ((uint)0x80000000)
-#define CPM_CR_PAGE ((uint)0x7c000000)
-#define CPM_CR_SBLOCK ((uint)0x03e00000)
-#define CPM_CR_FLG ((uint)0x00010000)
-#define CPM_CR_MCN ((uint)0x00003fc0)
-#define CPM_CR_OPCODE ((uint)0x0000000f)
-
-/* Device sub-block and page codes.
-*/
-#define CPM_CR_SCC1_SBLOCK (0x04)
-#define CPM_CR_SCC2_SBLOCK (0x05)
-#define CPM_CR_SCC3_SBLOCK (0x06)
-#define CPM_CR_SCC4_SBLOCK (0x07)
-#define CPM_CR_SMC1_SBLOCK (0x08)
-#define CPM_CR_SMC2_SBLOCK (0x09)
-#define CPM_CR_SPI_SBLOCK (0x0a)
-#define CPM_CR_I2C_SBLOCK (0x0b)
-#define CPM_CR_TIMER_SBLOCK (0x0f)
-#define CPM_CR_RAND_SBLOCK (0x0e)
-#define CPM_CR_FCC1_SBLOCK (0x10)
-#define CPM_CR_FCC2_SBLOCK (0x11)
-#define CPM_CR_FCC3_SBLOCK (0x12)
-#define CPM_CR_IDMA1_SBLOCK (0x14)
-#define CPM_CR_IDMA2_SBLOCK (0x15)
-#define CPM_CR_IDMA3_SBLOCK (0x16)
-#define CPM_CR_IDMA4_SBLOCK (0x17)
-#define CPM_CR_MCC1_SBLOCK (0x1c)
-
-#define CPM_CR_SCC1_PAGE (0x00)
-#define CPM_CR_SCC2_PAGE (0x01)
-#define CPM_CR_SCC3_PAGE (0x02)
-#define CPM_CR_SCC4_PAGE (0x03)
-#define CPM_CR_SMC1_PAGE (0x07)
-#define CPM_CR_SMC2_PAGE (0x08)
-#define CPM_CR_SPI_PAGE (0x09)
-#define CPM_CR_I2C_PAGE (0x0a)
-#define CPM_CR_TIMER_PAGE (0x0a)
-#define CPM_CR_RAND_PAGE (0x0a)
-#define CPM_CR_FCC1_PAGE (0x04)
-#define CPM_CR_FCC2_PAGE (0x05)
-#define CPM_CR_FCC3_PAGE (0x06)
-#define CPM_CR_IDMA1_PAGE (0x07)
-#define CPM_CR_IDMA2_PAGE (0x08)
-#define CPM_CR_IDMA3_PAGE (0x09)
-#define CPM_CR_IDMA4_PAGE (0x0a)
-#define CPM_CR_MCC1_PAGE (0x07)
-#define CPM_CR_MCC2_PAGE (0x08)
-
-/* Some opcodes (there are more...later)
-*/
-#define CPM_CR_INIT_TRX ((ushort)0x0000)
-#define CPM_CR_INIT_RX ((ushort)0x0001)
-#define CPM_CR_INIT_TX ((ushort)0x0002)
-#define CPM_CR_HUNT_MODE ((ushort)0x0003)
-#define CPM_CR_STOP_TX ((ushort)0x0004)
-#define CPM_CR_RESTART_TX ((ushort)0x0006)
-#define CPM_CR_SET_GADDR ((ushort)0x0008)
-#define CPM_CR_START_IDMA ((ushort)0x0009)
-#define CPM_CR_STOP_IDMA ((ushort)0x000b)
-
-#define mk_cr_cmd(PG, SBC, MCN, OP) \
- ((PG << 26) | (SBC << 21) | (MCN << 6) | OP)
-
-/* Dual Port RAM addresses. The first 16K is available for almost
- * any CPM use, so we put the BDs there. The first 128 bytes are
- * used for SMC1 and SMC2 parameter RAM, so we start allocating
- * BDs above that. All of this must change when we start
- * downloading RAM microcode.
- */
-#define CPM_DATAONLY_BASE ((uint)128)
-#define CPM_DP_NOSPACE ((uint)0x7fffffff)
-#ifdef CONFIG_8272
-#define CPM_DATAONLY_SIZE ((uint)(8 * 1024) - CPM_DATAONLY_BASE)
-#define CPM_FCC_SPECIAL_BASE ((uint)0x00009000)
-#else
-#define CPM_DATAONLY_SIZE ((uint)(16 * 1024) - CPM_DATAONLY_BASE)
-#define CPM_FCC_SPECIAL_BASE ((uint)0x0000b000)
-#endif
-
-/* The number of pages of host memory we allocate for CPM. This is
- * done early in kernel initialization to get physically contiguous
- * pages.
- */
-#define NUM_CPM_HOST_PAGES 2
-
-
-/* Export the base address of the communication processor registers
- * and dual port ram.
- */
-extern cpm_cpm2_t *cpmp; /* Pointer to comm processor */
-extern void *cpm2_dpalloc(uint size, uint align);
-extern int cpm2_dpfree(void *addr);
-extern void *cpm2_dpalloc_fixed(void *addr, uint size, uint allign);
-extern void cpm2_dpdump(void);
-extern unsigned int cpm2_dpram_offset(void *addr);
-extern void *cpm2_dpram_addr(int offset);
-extern void cpm2_setbrg(uint brg, uint rate);
-extern void cpm2_fastbrg(uint brg, uint rate, int div16);
-
-/* Buffer descriptors used by many of the CPM protocols.
-*/
-typedef struct cpm_buf_desc {
- ushort cbd_sc; /* Status and Control */
- ushort cbd_datlen; /* Data length in buffer */
- uint cbd_bufaddr; /* Buffer address in host memory */
-} cbd_t;
-
-#define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */
-#define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */
-#define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */
-#define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */
-#define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */
-#define BD_SC_CM ((ushort)0x0200) /* Continous mode */
-#define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */
-#define BD_SC_P ((ushort)0x0100) /* xmt preamble */
-#define BD_SC_BR ((ushort)0x0020) /* Break received */
-#define BD_SC_FR ((ushort)0x0010) /* Framing error */
-#define BD_SC_PR ((ushort)0x0008) /* Parity error */
-#define BD_SC_OV ((ushort)0x0002) /* Overrun */
-#define BD_SC_CD ((ushort)0x0001) /* ?? */
-
-/* Function code bits, usually generic to devices.
-*/
-#define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */
-#define CPMFCR_EB ((u_char)0x10) /* Set big endian byte order */
-#define CPMFCR_TC2 ((u_char)0x04) /* Transfer code 2 value */
-#define CPMFCR_DTB ((u_char)0x02) /* Use local bus for data when set */
-#define CPMFCR_BDB ((u_char)0x01) /* Use local bus for BD when set */
-
-/* Parameter RAM offsets from the base.
-*/
-#define PROFF_SCC1 ((uint)0x8000)
-#define PROFF_SCC2 ((uint)0x8100)
-#define PROFF_SCC3 ((uint)0x8200)
-#define PROFF_SCC4 ((uint)0x8300)
-#define PROFF_FCC1 ((uint)0x8400)
-#define PROFF_FCC2 ((uint)0x8500)
-#define PROFF_FCC3 ((uint)0x8600)
-#define PROFF_MCC1 ((uint)0x8700)
-#define PROFF_SMC1_BASE ((uint)0x87fc)
-#define PROFF_IDMA1_BASE ((uint)0x87fe)
-#define PROFF_MCC2 ((uint)0x8800)
-#define PROFF_SMC2_BASE ((uint)0x88fc)
-#define PROFF_IDMA2_BASE ((uint)0x88fe)
-#define PROFF_SPI_BASE ((uint)0x89fc)
-#define PROFF_IDMA3_BASE ((uint)0x89fe)
-#define PROFF_TIMERS ((uint)0x8ae0)
-#define PROFF_REVNUM ((uint)0x8af0)
-#define PROFF_RAND ((uint)0x8af8)
-#define PROFF_I2C_BASE ((uint)0x8afc)
-#define PROFF_IDMA4_BASE ((uint)0x8afe)
-
-/* The SMCs are relocated to any of the first eight DPRAM pages.
- * We will fix these at the first locations of DPRAM, until we
- * get some microcode patches :-).
- * The parameter ram space for the SMCs is fifty-some bytes, and
- * they are required to start on a 64 byte boundary.
- */
-#define PROFF_SMC1 (0)
-#define PROFF_SMC2 (64)
-
-
-/* Define enough so I can at least use the serial port as a UART.
- */
-typedef struct smc_uart {
- ushort smc_rbase; /* Rx Buffer descriptor base address */
- ushort smc_tbase; /* Tx Buffer descriptor base address */
- u_char smc_rfcr; /* Rx function code */
- u_char smc_tfcr; /* Tx function code */
- ushort smc_mrblr; /* Max receive buffer length */
- uint smc_rstate; /* Internal */
- uint smc_idp; /* Internal */
- ushort smc_rbptr; /* Internal */
- ushort smc_ibc; /* Internal */
- uint smc_rxtmp; /* Internal */
- uint smc_tstate; /* Internal */
- uint smc_tdp; /* Internal */
- ushort smc_tbptr; /* Internal */
- ushort smc_tbc; /* Internal */
- uint smc_txtmp; /* Internal */
- ushort smc_maxidl; /* Maximum idle characters */
- ushort smc_tmpidl; /* Temporary idle counter */
- ushort smc_brklen; /* Last received break length */
- ushort smc_brkec; /* rcv'd break condition counter */
- ushort smc_brkcr; /* xmt break count register */
- ushort smc_rmask; /* Temporary bit mask */
- uint smc_stmp; /* SDMA Temp */
-} smc_uart_t;
-
-/* SMC uart mode register (Internal memory map).
-*/
-#define SMCMR_REN ((ushort)0x0001)
-#define SMCMR_TEN ((ushort)0x0002)
-#define SMCMR_DM ((ushort)0x000c)
-#define SMCMR_SM_GCI ((ushort)0x0000)
-#define SMCMR_SM_UART ((ushort)0x0020)
-#define SMCMR_SM_TRANS ((ushort)0x0030)
-#define SMCMR_SM_MASK ((ushort)0x0030)
-#define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */
-#define SMCMR_REVD SMCMR_PM_EVEN
-#define SMCMR_PEN ((ushort)0x0200) /* Parity enable */
-#define SMCMR_BS SMCMR_PEN
-#define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */
-#define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */
-#define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK)
-
-/* SMC Event and Mask register.
-*/
-#define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */
-#define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */
-#define SMCM_TXE ((unsigned char)0x10)
-#define SMCM_BSY ((unsigned char)0x04)
-#define SMCM_TX ((unsigned char)0x02)
-#define SMCM_RX ((unsigned char)0x01)
-
-/* Baud rate generators.
-*/
-#define CPM_BRG_RST ((uint)0x00020000)
-#define CPM_BRG_EN ((uint)0x00010000)
-#define CPM_BRG_EXTC_INT ((uint)0x00000000)
-#define CPM_BRG_EXTC_CLK3_9 ((uint)0x00004000)
-#define CPM_BRG_EXTC_CLK5_15 ((uint)0x00008000)
-#define CPM_BRG_ATB ((uint)0x00002000)
-#define CPM_BRG_CD_MASK ((uint)0x00001ffe)
-#define CPM_BRG_DIV16 ((uint)0x00000001)
-
-/* SCCs.
-*/
-#define SCC_GSMRH_IRP ((uint)0x00040000)
-#define SCC_GSMRH_GDE ((uint)0x00010000)
-#define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000)
-#define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000)
-#define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000)
-#define SCC_GSMRH_REVD ((uint)0x00002000)
-#define SCC_GSMRH_TRX ((uint)0x00001000)
-#define SCC_GSMRH_TTX ((uint)0x00000800)
-#define SCC_GSMRH_CDP ((uint)0x00000400)
-#define SCC_GSMRH_CTSP ((uint)0x00000200)
-#define SCC_GSMRH_CDS ((uint)0x00000100)
-#define SCC_GSMRH_CTSS ((uint)0x00000080)
-#define SCC_GSMRH_TFL ((uint)0x00000040)
-#define SCC_GSMRH_RFW ((uint)0x00000020)
-#define SCC_GSMRH_TXSY ((uint)0x00000010)
-#define SCC_GSMRH_SYNL16 ((uint)0x0000000c)
-#define SCC_GSMRH_SYNL8 ((uint)0x00000008)
-#define SCC_GSMRH_SYNL4 ((uint)0x00000004)
-#define SCC_GSMRH_RTSM ((uint)0x00000002)
-#define SCC_GSMRH_RSYN ((uint)0x00000001)
-
-#define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */
-#define SCC_GSMRL_EDGE_NONE ((uint)0x60000000)
-#define SCC_GSMRL_EDGE_NEG ((uint)0x40000000)
-#define SCC_GSMRL_EDGE_POS ((uint)0x20000000)
-#define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000)
-#define SCC_GSMRL_TCI ((uint)0x10000000)
-#define SCC_GSMRL_TSNC_3 ((uint)0x0c000000)
-#define SCC_GSMRL_TSNC_4 ((uint)0x08000000)
-#define SCC_GSMRL_TSNC_14 ((uint)0x04000000)
-#define SCC_GSMRL_TSNC_INF ((uint)0x00000000)
-#define SCC_GSMRL_RINV ((uint)0x02000000)
-#define SCC_GSMRL_TINV ((uint)0x01000000)
-#define SCC_GSMRL_TPL_128 ((uint)0x00c00000)
-#define SCC_GSMRL_TPL_64 ((uint)0x00a00000)
-#define SCC_GSMRL_TPL_48 ((uint)0x00800000)
-#define SCC_GSMRL_TPL_32 ((uint)0x00600000)
-#define SCC_GSMRL_TPL_16 ((uint)0x00400000)
-#define SCC_GSMRL_TPL_8 ((uint)0x00200000)
-#define SCC_GSMRL_TPL_NONE ((uint)0x00000000)
-#define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000)
-#define SCC_GSMRL_TPP_01 ((uint)0x00100000)
-#define SCC_GSMRL_TPP_10 ((uint)0x00080000)
-#define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000)
-#define SCC_GSMRL_TEND ((uint)0x00040000)
-#define SCC_GSMRL_TDCR_32 ((uint)0x00030000)
-#define SCC_GSMRL_TDCR_16 ((uint)0x00020000)
-#define SCC_GSMRL_TDCR_8 ((uint)0x00010000)
-#define SCC_GSMRL_TDCR_1 ((uint)0x00000000)
-#define SCC_GSMRL_RDCR_32 ((uint)0x0000c000)
-#define SCC_GSMRL_RDCR_16 ((uint)0x00008000)
-#define SCC_GSMRL_RDCR_8 ((uint)0x00004000)
-#define SCC_GSMRL_RDCR_1 ((uint)0x00000000)
-#define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000)
-#define SCC_GSMRL_RENC_MANCH ((uint)0x00002000)
-#define SCC_GSMRL_RENC_FM0 ((uint)0x00001000)
-#define SCC_GSMRL_RENC_NRZI ((uint)0x00000800)
-#define SCC_GSMRL_RENC_NRZ ((uint)0x00000000)
-#define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600)
-#define SCC_GSMRL_TENC_MANCH ((uint)0x00000400)
-#define SCC_GSMRL_TENC_FM0 ((uint)0x00000200)
-#define SCC_GSMRL_TENC_NRZI ((uint)0x00000100)
-#define SCC_GSMRL_TENC_NRZ ((uint)0x00000000)
-#define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */
-#define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080)
-#define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040)
-#define SCC_GSMRL_DIAG_NORM ((uint)0x00000000)
-#define SCC_GSMRL_ENR ((uint)0x00000020)
-#define SCC_GSMRL_ENT ((uint)0x00000010)
-#define SCC_GSMRL_MODE_ENET ((uint)0x0000000c)
-#define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009)
-#define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008)
-#define SCC_GSMRL_MODE_V14 ((uint)0x00000007)
-#define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006)
-#define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005)
-#define SCC_GSMRL_MODE_UART ((uint)0x00000004)
-#define SCC_GSMRL_MODE_SS7 ((uint)0x00000003)
-#define SCC_GSMRL_MODE_ATALK ((uint)0x00000002)
-#define SCC_GSMRL_MODE_HDLC ((uint)0x00000000)
-
-#define SCC_TODR_TOD ((ushort)0x8000)
-
-/* SCC Event and Mask register.
-*/
-#define SCCM_TXE ((unsigned char)0x10)
-#define SCCM_BSY ((unsigned char)0x04)
-#define SCCM_TX ((unsigned char)0x02)
-#define SCCM_RX ((unsigned char)0x01)
-
-typedef struct scc_param {
- ushort scc_rbase; /* Rx Buffer descriptor base address */
- ushort scc_tbase; /* Tx Buffer descriptor base address */
- u_char scc_rfcr; /* Rx function code */
- u_char scc_tfcr; /* Tx function code */
- ushort scc_mrblr; /* Max receive buffer length */
- uint scc_rstate; /* Internal */
- uint scc_idp; /* Internal */
- ushort scc_rbptr; /* Internal */
- ushort scc_ibc; /* Internal */
- uint scc_rxtmp; /* Internal */
- uint scc_tstate; /* Internal */
- uint scc_tdp; /* Internal */
- ushort scc_tbptr; /* Internal */
- ushort scc_tbc; /* Internal */
- uint scc_txtmp; /* Internal */
- uint scc_rcrc; /* Internal */
- uint scc_tcrc; /* Internal */
-} sccp_t;
-
-/* CPM Ethernet through SCC1.
- */
-typedef struct scc_enet {
- sccp_t sen_genscc;
- uint sen_cpres; /* Preset CRC */
- uint sen_cmask; /* Constant mask for CRC */
- uint sen_crcec; /* CRC Error counter */
- uint sen_alec; /* alignment error counter */
- uint sen_disfc; /* discard frame counter */
- ushort sen_pads; /* Tx short frame pad character */
- ushort sen_retlim; /* Retry limit threshold */
- ushort sen_retcnt; /* Retry limit counter */
- ushort sen_maxflr; /* maximum frame length register */
- ushort sen_minflr; /* minimum frame length register */
- ushort sen_maxd1; /* maximum DMA1 length */
- ushort sen_maxd2; /* maximum DMA2 length */
- ushort sen_maxd; /* Rx max DMA */
- ushort sen_dmacnt; /* Rx DMA counter */
- ushort sen_maxb; /* Max BD byte count */
- ushort sen_gaddr1; /* Group address filter */
- ushort sen_gaddr2;
- ushort sen_gaddr3;
- ushort sen_gaddr4;
- uint sen_tbuf0data0; /* Save area 0 - current frame */
- uint sen_tbuf0data1; /* Save area 1 - current frame */
- uint sen_tbuf0rba; /* Internal */
- uint sen_tbuf0crc; /* Internal */
- ushort sen_tbuf0bcnt; /* Internal */
- ushort sen_paddrh; /* physical address (MSB) */
- ushort sen_paddrm;
- ushort sen_paddrl; /* physical address (LSB) */
- ushort sen_pper; /* persistence */
- ushort sen_rfbdptr; /* Rx first BD pointer */
- ushort sen_tfbdptr; /* Tx first BD pointer */
- ushort sen_tlbdptr; /* Tx last BD pointer */
- uint sen_tbuf1data0; /* Save area 0 - current frame */
- uint sen_tbuf1data1; /* Save area 1 - current frame */
- uint sen_tbuf1rba; /* Internal */
- uint sen_tbuf1crc; /* Internal */
- ushort sen_tbuf1bcnt; /* Internal */
- ushort sen_txlen; /* Tx Frame length counter */
- ushort sen_iaddr1; /* Individual address filter */
- ushort sen_iaddr2;
- ushort sen_iaddr3;
- ushort sen_iaddr4;
- ushort sen_boffcnt; /* Backoff counter */
-
- /* NOTE: Some versions of the manual have the following items
- * incorrectly documented. Below is the proper order.
- */
- ushort sen_taddrh; /* temp address (MSB) */
- ushort sen_taddrm;
- ushort sen_taddrl; /* temp address (LSB) */
-} scc_enet_t;
-
-
-/* SCC Event register as used by Ethernet.
-*/
-#define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */
-#define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */
-#define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */
-#define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */
-#define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */
-#define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */
-
-/* SCC Mode Register (PSMR) as used by Ethernet.
-*/
-#define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */
-#define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */
-#define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */
-#define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */
-#define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */
-#define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */
-#define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */
-#define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */
-#define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */
-#define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */
-#define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */
-#define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */
-#define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */
-
-/* Buffer descriptor control/status used by Ethernet receive.
- * Common to SCC and FCC.
- */
-#define BD_ENET_RX_EMPTY ((ushort)0x8000)
-#define BD_ENET_RX_WRAP ((ushort)0x2000)
-#define BD_ENET_RX_INTR ((ushort)0x1000)
-#define BD_ENET_RX_LAST ((ushort)0x0800)
-#define BD_ENET_RX_FIRST ((ushort)0x0400)
-#define BD_ENET_RX_MISS ((ushort)0x0100)
-#define BD_ENET_RX_BC ((ushort)0x0080) /* FCC Only */
-#define BD_ENET_RX_MC ((ushort)0x0040) /* FCC Only */
-#define BD_ENET_RX_LG ((ushort)0x0020)
-#define BD_ENET_RX_NO ((ushort)0x0010)
-#define BD_ENET_RX_SH ((ushort)0x0008)
-#define BD_ENET_RX_CR ((ushort)0x0004)
-#define BD_ENET_RX_OV ((ushort)0x0002)
-#define BD_ENET_RX_CL ((ushort)0x0001)
-#define BD_ENET_RX_STATS ((ushort)0x01ff) /* All status bits */
-
-/* Buffer descriptor control/status used by Ethernet transmit.
- * Common to SCC and FCC.
- */
-#define BD_ENET_TX_READY ((ushort)0x8000)
-#define BD_ENET_TX_PAD ((ushort)0x4000)
-#define BD_ENET_TX_WRAP ((ushort)0x2000)
-#define BD_ENET_TX_INTR ((ushort)0x1000)
-#define BD_ENET_TX_LAST ((ushort)0x0800)
-#define BD_ENET_TX_TC ((ushort)0x0400)
-#define BD_ENET_TX_DEF ((ushort)0x0200)
-#define BD_ENET_TX_HB ((ushort)0x0100)
-#define BD_ENET_TX_LC ((ushort)0x0080)
-#define BD_ENET_TX_RL ((ushort)0x0040)
-#define BD_ENET_TX_RCMASK ((ushort)0x003c)
-#define BD_ENET_TX_UN ((ushort)0x0002)
-#define BD_ENET_TX_CSL ((ushort)0x0001)
-#define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */
-
-/* SCC as UART
-*/
-typedef struct scc_uart {
- sccp_t scc_genscc;
- uint scc_res1; /* Reserved */
- uint scc_res2; /* Reserved */
- ushort scc_maxidl; /* Maximum idle chars */
- ushort scc_idlc; /* temp idle counter */
- ushort scc_brkcr; /* Break count register */
- ushort scc_parec; /* receive parity error counter */
- ushort scc_frmec; /* receive framing error counter */
- ushort scc_nosec; /* receive noise counter */
- ushort scc_brkec; /* receive break condition counter */
- ushort scc_brkln; /* last received break length */
- ushort scc_uaddr1; /* UART address character 1 */
- ushort scc_uaddr2; /* UART address character 2 */
- ushort scc_rtemp; /* Temp storage */
- ushort scc_toseq; /* Transmit out of sequence char */
- ushort scc_char1; /* control character 1 */
- ushort scc_char2; /* control character 2 */
- ushort scc_char3; /* control character 3 */
- ushort scc_char4; /* control character 4 */
- ushort scc_char5; /* control character 5 */
- ushort scc_char6; /* control character 6 */
- ushort scc_char7; /* control character 7 */
- ushort scc_char8; /* control character 8 */
- ushort scc_rccm; /* receive control character mask */
- ushort scc_rccr; /* receive control character register */
- ushort scc_rlbc; /* receive last break character */
-} scc_uart_t;
-
-/* SCC Event and Mask registers when it is used as a UART.
-*/
-#define UART_SCCM_GLR ((ushort)0x1000)
-#define UART_SCCM_GLT ((ushort)0x0800)
-#define UART_SCCM_AB ((ushort)0x0200)
-#define UART_SCCM_IDL ((ushort)0x0100)
-#define UART_SCCM_GRA ((ushort)0x0080)
-#define UART_SCCM_BRKE ((ushort)0x0040)
-#define UART_SCCM_BRKS ((ushort)0x0020)
-#define UART_SCCM_CCR ((ushort)0x0008)
-#define UART_SCCM_BSY ((ushort)0x0004)
-#define UART_SCCM_TX ((ushort)0x0002)
-#define UART_SCCM_RX ((ushort)0x0001)
-
-/* The SCC PSMR when used as a UART.
-*/
-#define SCU_PSMR_FLC ((ushort)0x8000)
-#define SCU_PSMR_SL ((ushort)0x4000)
-#define SCU_PSMR_CL ((ushort)0x3000)
-#define SCU_PSMR_UM ((ushort)0x0c00)
-#define SCU_PSMR_FRZ ((ushort)0x0200)
-#define SCU_PSMR_RZS ((ushort)0x0100)
-#define SCU_PSMR_SYN ((ushort)0x0080)
-#define SCU_PSMR_DRT ((ushort)0x0040)
-#define SCU_PSMR_PEN ((ushort)0x0010)
-#define SCU_PSMR_RPM ((ushort)0x000c)
-#define SCU_PSMR_REVP ((ushort)0x0008)
-#define SCU_PSMR_TPM ((ushort)0x0003)
-#define SCU_PSMR_TEVP ((ushort)0x0003)
-
-/* CPM Transparent mode SCC.
- */
-typedef struct scc_trans {
- sccp_t st_genscc;
- uint st_cpres; /* Preset CRC */
- uint st_cmask; /* Constant mask for CRC */
-} scc_trans_t;
-
-#define BD_SCC_TX_LAST ((ushort)0x0800)
-
-/* How about some FCCs.....
-*/
-#define FCC_GFMR_DIAG_NORM ((uint)0x00000000)
-#define FCC_GFMR_DIAG_LE ((uint)0x40000000)
-#define FCC_GFMR_DIAG_AE ((uint)0x80000000)
-#define FCC_GFMR_DIAG_ALE ((uint)0xc0000000)
-#define FCC_GFMR_TCI ((uint)0x20000000)
-#define FCC_GFMR_TRX ((uint)0x10000000)
-#define FCC_GFMR_TTX ((uint)0x08000000)
-#define FCC_GFMR_TTX ((uint)0x08000000)
-#define FCC_GFMR_CDP ((uint)0x04000000)
-#define FCC_GFMR_CTSP ((uint)0x02000000)
-#define FCC_GFMR_CDS ((uint)0x01000000)
-#define FCC_GFMR_CTSS ((uint)0x00800000)
-#define FCC_GFMR_SYNL_NONE ((uint)0x00000000)
-#define FCC_GFMR_SYNL_AUTO ((uint)0x00004000)
-#define FCC_GFMR_SYNL_8 ((uint)0x00008000)
-#define FCC_GFMR_SYNL_16 ((uint)0x0000c000)
-#define FCC_GFMR_RTSM ((uint)0x00002000)
-#define FCC_GFMR_RENC_NRZ ((uint)0x00000000)
-#define FCC_GFMR_RENC_NRZI ((uint)0x00000800)
-#define FCC_GFMR_REVD ((uint)0x00000400)
-#define FCC_GFMR_TENC_NRZ ((uint)0x00000000)
-#define FCC_GFMR_TENC_NRZI ((uint)0x00000100)
-#define FCC_GFMR_TCRC_16 ((uint)0x00000000)
-#define FCC_GFMR_TCRC_32 ((uint)0x00000080)
-#define FCC_GFMR_ENR ((uint)0x00000020)
-#define FCC_GFMR_ENT ((uint)0x00000010)
-#define FCC_GFMR_MODE_ENET ((uint)0x0000000c)
-#define FCC_GFMR_MODE_ATM ((uint)0x0000000a)
-#define FCC_GFMR_MODE_HDLC ((uint)0x00000000)
-
-/* Generic FCC parameter ram.
-*/
-typedef struct fcc_param {
- ushort fcc_riptr; /* Rx Internal temp pointer */
- ushort fcc_tiptr; /* Tx Internal temp pointer */
- ushort fcc_res1;
- ushort fcc_mrblr; /* Max receive buffer length, mod 32 bytes */
- uint fcc_rstate; /* Upper byte is Func code, must be set */
- uint fcc_rbase; /* Receive BD base */
- ushort fcc_rbdstat; /* RxBD status */
- ushort fcc_rbdlen; /* RxBD down counter */
- uint fcc_rdptr; /* RxBD internal data pointer */
- uint fcc_tstate; /* Upper byte is Func code, must be set */
- uint fcc_tbase; /* Transmit BD base */
- ushort fcc_tbdstat; /* TxBD status */
- ushort fcc_tbdlen; /* TxBD down counter */
- uint fcc_tdptr; /* TxBD internal data pointer */
- uint fcc_rbptr; /* Rx BD Internal buf pointer */
- uint fcc_tbptr; /* Tx BD Internal buf pointer */
- uint fcc_rcrc; /* Rx temp CRC */
- uint fcc_res2;
- uint fcc_tcrc; /* Tx temp CRC */
-} fccp_t;
-
-
-/* Ethernet controller through FCC.
-*/
-typedef struct fcc_enet {
- fccp_t fen_genfcc;
- uint fen_statbuf; /* Internal status buffer */
- uint fen_camptr; /* CAM address */
- uint fen_cmask; /* Constant mask for CRC */
- uint fen_cpres; /* Preset CRC */
- uint fen_crcec; /* CRC Error counter */
- uint fen_alec; /* alignment error counter */
- uint fen_disfc; /* discard frame counter */
- ushort fen_retlim; /* Retry limit */
- ushort fen_retcnt; /* Retry counter */
- ushort fen_pper; /* Persistence */
- ushort fen_boffcnt; /* backoff counter */
- uint fen_gaddrh; /* Group address filter, high 32-bits */
- uint fen_gaddrl; /* Group address filter, low 32-bits */
- ushort fen_tfcstat; /* out of sequence TxBD */
- ushort fen_tfclen;
- uint fen_tfcptr;
- ushort fen_mflr; /* Maximum frame length (1518) */
- ushort fen_paddrh; /* MAC address */
- ushort fen_paddrm;
- ushort fen_paddrl;
- ushort fen_ibdcount; /* Internal BD counter */
- ushort fen_ibdstart; /* Internal BD start pointer */
- ushort fen_ibdend; /* Internal BD end pointer */
- ushort fen_txlen; /* Internal Tx frame length counter */
- uint fen_ibdbase[8]; /* Internal use */
- uint fen_iaddrh; /* Individual address filter */
- uint fen_iaddrl;
- ushort fen_minflr; /* Minimum frame length (64) */
- ushort fen_taddrh; /* Filter transfer MAC address */
- ushort fen_taddrm;
- ushort fen_taddrl;
- ushort fen_padptr; /* Pointer to pad byte buffer */
- ushort fen_cftype; /* control frame type */
- ushort fen_cfrange; /* control frame range */
- ushort fen_maxb; /* maximum BD count */
- ushort fen_maxd1; /* Max DMA1 length (1520) */
- ushort fen_maxd2; /* Max DMA2 length (1520) */
- ushort fen_maxd; /* internal max DMA count */
- ushort fen_dmacnt; /* internal DMA counter */
- uint fen_octc; /* Total octect counter */
- uint fen_colc; /* Total collision counter */
- uint fen_broc; /* Total broadcast packet counter */
- uint fen_mulc; /* Total multicast packet count */
- uint fen_uspc; /* Total packets < 64 bytes */
- uint fen_frgc; /* Total packets < 64 bytes with errors */
- uint fen_ospc; /* Total packets > 1518 */
- uint fen_jbrc; /* Total packets > 1518 with errors */
- uint fen_p64c; /* Total packets == 64 bytes */
- uint fen_p65c; /* Total packets 64 < bytes <= 127 */
- uint fen_p128c; /* Total packets 127 < bytes <= 255 */
- uint fen_p256c; /* Total packets 256 < bytes <= 511 */
- uint fen_p512c; /* Total packets 512 < bytes <= 1023 */
- uint fen_p1024c; /* Total packets 1024 < bytes <= 1518 */
- uint fen_cambuf; /* Internal CAM buffer poiner */
- ushort fen_rfthr; /* Received frames threshold */
- ushort fen_rfcnt; /* Received frames count */
-} fcc_enet_t;
-
-/* FCC Event/Mask register as used by Ethernet.
-*/
-#define FCC_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */
-#define FCC_ENET_RXC ((ushort)0x0040) /* Control Frame Received */
-#define FCC_ENET_TXC ((ushort)0x0020) /* Out of seq. Tx sent */
-#define FCC_ENET_TXE ((ushort)0x0010) /* Transmit Error */
-#define FCC_ENET_RXF ((ushort)0x0008) /* Full frame received */
-#define FCC_ENET_BSY ((ushort)0x0004) /* Busy. Rx Frame dropped */
-#define FCC_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */
-#define FCC_ENET_RXB ((ushort)0x0001) /* A buffer was received */
-
-/* FCC Mode Register (FPSMR) as used by Ethernet.
-*/
-#define FCC_PSMR_HBC ((uint)0x80000000) /* Enable heartbeat */
-#define FCC_PSMR_FC ((uint)0x40000000) /* Force Collision */
-#define FCC_PSMR_SBT ((uint)0x20000000) /* Stop backoff timer */
-#define FCC_PSMR_LPB ((uint)0x10000000) /* Local protect. 1 = FDX */
-#define FCC_PSMR_LCW ((uint)0x08000000) /* Late collision select */
-#define FCC_PSMR_FDE ((uint)0x04000000) /* Full Duplex Enable */
-#define FCC_PSMR_MON ((uint)0x02000000) /* RMON Enable */
-#define FCC_PSMR_PRO ((uint)0x00400000) /* Promiscuous Enable */
-#define FCC_PSMR_FCE ((uint)0x00200000) /* Flow Control Enable */
-#define FCC_PSMR_RSH ((uint)0x00100000) /* Receive Short Frames */
-#define FCC_PSMR_CAM ((uint)0x00000400) /* CAM enable */
-#define FCC_PSMR_BRO ((uint)0x00000200) /* Broadcast pkt discard */
-#define FCC_PSMR_ENCRC ((uint)0x00000080) /* Use 32-bit CRC */
-
-/* IIC parameter RAM.
-*/
-typedef struct iic {
- ushort iic_rbase; /* Rx Buffer descriptor base address */
- ushort iic_tbase; /* Tx Buffer descriptor base address */
- u_char iic_rfcr; /* Rx function code */
- u_char iic_tfcr; /* Tx function code */
- ushort iic_mrblr; /* Max receive buffer length */
- uint iic_rstate; /* Internal */
- uint iic_rdp; /* Internal */
- ushort iic_rbptr; /* Internal */
- ushort iic_rbc; /* Internal */
- uint iic_rxtmp; /* Internal */
- uint iic_tstate; /* Internal */
- uint iic_tdp; /* Internal */
- ushort iic_tbptr; /* Internal */
- ushort iic_tbc; /* Internal */
- uint iic_txtmp; /* Internal */
-} iic_t;
-
-/* SPI parameter RAM.
-*/
-typedef struct spi {
- ushort spi_rbase; /* Rx Buffer descriptor base address */
- ushort spi_tbase; /* Tx Buffer descriptor base address */
- u_char spi_rfcr; /* Rx function code */
- u_char spi_tfcr; /* Tx function code */
- ushort spi_mrblr; /* Max receive buffer length */
- uint spi_rstate; /* Internal */
- uint spi_rdp; /* Internal */
- ushort spi_rbptr; /* Internal */
- ushort spi_rbc; /* Internal */
- uint spi_rxtmp; /* Internal */
- uint spi_tstate; /* Internal */
- uint spi_tdp; /* Internal */
- ushort spi_tbptr; /* Internal */
- ushort spi_tbc; /* Internal */
- uint spi_txtmp; /* Internal */
- uint spi_res; /* Tx temp. */
- uint spi_res1[4]; /* SDMA temp. */
-} spi_t;
-
-/* SPI Mode register.
-*/
-#define SPMODE_LOOP ((ushort)0x4000) /* Loopback */
-#define SPMODE_CI ((ushort)0x2000) /* Clock Invert */
-#define SPMODE_CP ((ushort)0x1000) /* Clock Phase */
-#define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */
-#define SPMODE_REV ((ushort)0x0400) /* Reversed Data */
-#define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */
-#define SPMODE_EN ((ushort)0x0100) /* Enable */
-#define SPMODE_LENMSK ((ushort)0x00f0) /* character length */
-#define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */
-
-#define SPMODE_LEN(x) ((((x)-1)&0xF)<<4)
-#define SPMODE_PM(x) ((x) &0xF)
-
-#define SPI_EB ((u_char)0x10) /* big endian byte order */
-
-#define BD_IIC_START ((ushort)0x0400)
-
-/* IDMA parameter RAM
-*/
-typedef struct idma {
- ushort ibase; /* IDMA buffer descriptor table base address */
- ushort dcm; /* DMA channel mode */
- ushort ibdptr; /* IDMA current buffer descriptor pointer */
- ushort dpr_buf; /* IDMA transfer buffer base address */
- ushort buf_inv; /* internal buffer inventory */
- ushort ss_max; /* steady-state maximum transfer size */
- ushort dpr_in_ptr; /* write pointer inside the internal buffer */
- ushort sts; /* source transfer size */
- ushort dpr_out_ptr; /* read pointer inside the internal buffer */
- ushort seob; /* source end of burst */
- ushort deob; /* destination end of burst */
- ushort dts; /* destination transfer size */
- ushort ret_add; /* return address when working in ERM=1 mode */
- ushort res0; /* reserved */
- uint bd_cnt; /* internal byte count */
- uint s_ptr; /* source internal data pointer */
- uint d_ptr; /* destination internal data pointer */
- uint istate; /* internal state */
- u_char res1[20]; /* pad to 64-byte length */
-} idma_t;
-
-/* DMA channel mode bit fields
-*/
-#define IDMA_DCM_FB ((ushort)0x8000) /* fly-by mode */
-#define IDMA_DCM_LP ((ushort)0x4000) /* low priority */
-#define IDMA_DCM_TC2 ((ushort)0x0400) /* value driven on TC[2] */
-#define IDMA_DCM_DMA_WRAP_MASK ((ushort)0x01c0) /* mask for DMA wrap */
-#define IDMA_DCM_DMA_WRAP_64 ((ushort)0x0000) /* 64-byte DMA xfer buffer */
-#define IDMA_DCM_DMA_WRAP_128 ((ushort)0x0040) /* 128-byte DMA xfer buffer */
-#define IDMA_DCM_DMA_WRAP_256 ((ushort)0x0080) /* 256-byte DMA xfer buffer */
-#define IDMA_DCM_DMA_WRAP_512 ((ushort)0x00c0) /* 512-byte DMA xfer buffer */
-#define IDMA_DCM_DMA_WRAP_1024 ((ushort)0x0100) /* 1024-byte DMA xfer buffer */
-#define IDMA_DCM_DMA_WRAP_2048 ((ushort)0x0140) /* 2048-byte DMA xfer buffer */
-#define IDMA_DCM_SINC ((ushort)0x0020) /* source inc addr */
-#define IDMA_DCM_DINC ((ushort)0x0010) /* destination inc addr */
-#define IDMA_DCM_ERM ((ushort)0x0008) /* external request mode */
-#define IDMA_DCM_DT ((ushort)0x0004) /* DONE treatment */
-#define IDMA_DCM_SD_MASK ((ushort)0x0003) /* mask for SD bit field */
-#define IDMA_DCM_SD_MEM2MEM ((ushort)0x0000) /* memory-to-memory xfer */
-#define IDMA_DCM_SD_PER2MEM ((ushort)0x0002) /* peripheral-to-memory xfer */
-#define IDMA_DCM_SD_MEM2PER ((ushort)0x0001) /* memory-to-peripheral xfer */
-
-/* IDMA Buffer Descriptors
-*/
-typedef struct idma_bd {
- uint flags;
- uint len; /* data length */
- uint src; /* source data buffer pointer */
- uint dst; /* destination data buffer pointer */
-} idma_bd_t;
-
-/* IDMA buffer descriptor flag bit fields
-*/
-#define IDMA_BD_V ((uint)0x80000000) /* valid */
-#define IDMA_BD_W ((uint)0x20000000) /* wrap */
-#define IDMA_BD_I ((uint)0x10000000) /* interrupt */
-#define IDMA_BD_L ((uint)0x08000000) /* last */
-#define IDMA_BD_CM ((uint)0x02000000) /* continuous mode */
-#define IDMA_BD_SDN ((uint)0x00400000) /* source done */
-#define IDMA_BD_DDN ((uint)0x00200000) /* destination done */
-#define IDMA_BD_DGBL ((uint)0x00100000) /* destination global */
-#define IDMA_BD_DBO_LE ((uint)0x00040000) /* little-end dest byte order */
-#define IDMA_BD_DBO_BE ((uint)0x00080000) /* big-end dest byte order */
-#define IDMA_BD_DDTB ((uint)0x00010000) /* destination data bus */
-#define IDMA_BD_SGBL ((uint)0x00002000) /* source global */
-#define IDMA_BD_SBO_LE ((uint)0x00000800) /* little-end src byte order */
-#define IDMA_BD_SBO_BE ((uint)0x00001000) /* big-end src byte order */
-#define IDMA_BD_SDTB ((uint)0x00000200) /* source data bus */
-
-/* per-channel IDMA registers
-*/
-typedef struct im_idma {
- u_char idsr; /* IDMAn event status register */
- u_char res0[3];
- u_char idmr; /* IDMAn event mask register */
- u_char res1[3];
-} im_idma_t;
-
-/* IDMA event register bit fields
-*/
-#define IDMA_EVENT_SC ((unsigned char)0x08) /* stop completed */
-#define IDMA_EVENT_OB ((unsigned char)0x04) /* out of buffers */
-#define IDMA_EVENT_EDN ((unsigned char)0x02) /* external DONE asserted */
-#define IDMA_EVENT_BC ((unsigned char)0x01) /* buffer descriptor complete */
-
-/* RISC Controller Configuration Register (RCCR) bit fields
-*/
-#define RCCR_TIME ((uint)0x80000000) /* timer enable */
-#define RCCR_TIMEP_MASK ((uint)0x3f000000) /* mask for timer period bit field */
-#define RCCR_DR0M ((uint)0x00800000) /* IDMA0 request mode */
-#define RCCR_DR1M ((uint)0x00400000) /* IDMA1 request mode */
-#define RCCR_DR2M ((uint)0x00000080) /* IDMA2 request mode */
-#define RCCR_DR3M ((uint)0x00000040) /* IDMA3 request mode */
-#define RCCR_DR0QP_MASK ((uint)0x00300000) /* mask for IDMA0 req priority */
-#define RCCR_DR0QP_HIGH ((uint)0x00000000) /* IDMA0 has high req priority */
-#define RCCR_DR0QP_MED ((uint)0x00100000) /* IDMA0 has medium req priority */
-#define RCCR_DR0QP_LOW ((uint)0x00200000) /* IDMA0 has low req priority */
-#define RCCR_DR1QP_MASK ((uint)0x00030000) /* mask for IDMA1 req priority */
-#define RCCR_DR1QP_HIGH ((uint)0x00000000) /* IDMA1 has high req priority */
-#define RCCR_DR1QP_MED ((uint)0x00010000) /* IDMA1 has medium req priority */
-#define RCCR_DR1QP_LOW ((uint)0x00020000) /* IDMA1 has low req priority */
-#define RCCR_DR2QP_MASK ((uint)0x00000030) /* mask for IDMA2 req priority */
-#define RCCR_DR2QP_HIGH ((uint)0x00000000) /* IDMA2 has high req priority */
-#define RCCR_DR2QP_MED ((uint)0x00000010) /* IDMA2 has medium req priority */
-#define RCCR_DR2QP_LOW ((uint)0x00000020) /* IDMA2 has low req priority */
-#define RCCR_DR3QP_MASK ((uint)0x00000003) /* mask for IDMA3 req priority */
-#define RCCR_DR3QP_HIGH ((uint)0x00000000) /* IDMA3 has high req priority */
-#define RCCR_DR3QP_MED ((uint)0x00000001) /* IDMA3 has medium req priority */
-#define RCCR_DR3QP_LOW ((uint)0x00000002) /* IDMA3 has low req priority */
-#define RCCR_EIE ((uint)0x00080000) /* external interrupt enable */
-#define RCCR_SCD ((uint)0x00040000) /* scheduler configuration */
-#define RCCR_ERAM_MASK ((uint)0x0000e000) /* mask for enable RAM microcode */
-#define RCCR_ERAM_0KB ((uint)0x00000000) /* use 0KB of dpram for microcode */
-#define RCCR_ERAM_2KB ((uint)0x00002000) /* use 2KB of dpram for microcode */
-#define RCCR_ERAM_4KB ((uint)0x00004000) /* use 4KB of dpram for microcode */
-#define RCCR_ERAM_6KB ((uint)0x00006000) /* use 6KB of dpram for microcode */
-#define RCCR_ERAM_8KB ((uint)0x00008000) /* use 8KB of dpram for microcode */
-#define RCCR_ERAM_10KB ((uint)0x0000a000) /* use 10KB of dpram for microcode */
-#define RCCR_ERAM_12KB ((uint)0x0000c000) /* use 12KB of dpram for microcode */
-#define RCCR_EDM0 ((uint)0x00000800) /* DREQ0 edge detect mode */
-#define RCCR_EDM1 ((uint)0x00000400) /* DREQ1 edge detect mode */
-#define RCCR_EDM2 ((uint)0x00000200) /* DREQ2 edge detect mode */
-#define RCCR_EDM3 ((uint)0x00000100) /* DREQ3 edge detect mode */
-#define RCCR_DEM01 ((uint)0x00000008) /* DONE0/DONE1 edge detect mode */
-#define RCCR_DEM23 ((uint)0x00000004) /* DONE2/DONE3 edge detect mode */
-
-/*-----------------------------------------------------------------------
- * CMXFCR - CMX FCC Clock Route Register
- */
-#define CMXFCR_FC1 0x40000000 /* FCC1 connection */
-#define CMXFCR_RF1CS_MSK 0x38000000 /* Receive FCC1 Clock Source Mask */
-#define CMXFCR_TF1CS_MSK 0x07000000 /* Transmit FCC1 Clock Source Mask */
-#define CMXFCR_FC2 0x00400000 /* FCC2 connection */
-#define CMXFCR_RF2CS_MSK 0x00380000 /* Receive FCC2 Clock Source Mask */
-#define CMXFCR_TF2CS_MSK 0x00070000 /* Transmit FCC2 Clock Source Mask */
-#define CMXFCR_FC3 0x00004000 /* FCC3 connection */
-#define CMXFCR_RF3CS_MSK 0x00003800 /* Receive FCC3 Clock Source Mask */
-#define CMXFCR_TF3CS_MSK 0x00000700 /* Transmit FCC3 Clock Source Mask */
-
-#define CMXFCR_RF1CS_BRG5 0x00000000 /* Receive FCC1 Clock Source is BRG5 */
-#define CMXFCR_RF1CS_BRG6 0x08000000 /* Receive FCC1 Clock Source is BRG6 */
-#define CMXFCR_RF1CS_BRG7 0x10000000 /* Receive FCC1 Clock Source is BRG7 */
-#define CMXFCR_RF1CS_BRG8 0x18000000 /* Receive FCC1 Clock Source is BRG8 */
-#define CMXFCR_RF1CS_CLK9 0x20000000 /* Receive FCC1 Clock Source is CLK9 */
-#define CMXFCR_RF1CS_CLK10 0x28000000 /* Receive FCC1 Clock Source is CLK10 */
-#define CMXFCR_RF1CS_CLK11 0x30000000 /* Receive FCC1 Clock Source is CLK11 */
-#define CMXFCR_RF1CS_CLK12 0x38000000 /* Receive FCC1 Clock Source is CLK12 */
-
-#define CMXFCR_TF1CS_BRG5 0x00000000 /* Transmit FCC1 Clock Source is BRG5 */
-#define CMXFCR_TF1CS_BRG6 0x01000000 /* Transmit FCC1 Clock Source is BRG6 */
-#define CMXFCR_TF1CS_BRG7 0x02000000 /* Transmit FCC1 Clock Source is BRG7 */
-#define CMXFCR_TF1CS_BRG8 0x03000000 /* Transmit FCC1 Clock Source is BRG8 */
-#define CMXFCR_TF1CS_CLK9 0x04000000 /* Transmit FCC1 Clock Source is CLK9 */
-#define CMXFCR_TF1CS_CLK10 0x05000000 /* Transmit FCC1 Clock Source is CLK10 */
-#define CMXFCR_TF1CS_CLK11 0x06000000 /* Transmit FCC1 Clock Source is CLK11 */
-#define CMXFCR_TF1CS_CLK12 0x07000000 /* Transmit FCC1 Clock Source is CLK12 */
-
-#define CMXFCR_RF2CS_BRG5 0x00000000 /* Receive FCC2 Clock Source is BRG5 */
-#define CMXFCR_RF2CS_BRG6 0x00080000 /* Receive FCC2 Clock Source is BRG6 */
-#define CMXFCR_RF2CS_BRG7 0x00100000 /* Receive FCC2 Clock Source is BRG7 */
-#define CMXFCR_RF2CS_BRG8 0x00180000 /* Receive FCC2 Clock Source is BRG8 */
-#define CMXFCR_RF2CS_CLK13 0x00200000 /* Receive FCC2 Clock Source is CLK13 */
-#define CMXFCR_RF2CS_CLK14 0x00280000 /* Receive FCC2 Clock Source is CLK14 */
-#define CMXFCR_RF2CS_CLK15 0x00300000 /* Receive FCC2 Clock Source is CLK15 */
-#define CMXFCR_RF2CS_CLK16 0x00380000 /* Receive FCC2 Clock Source is CLK16 */
-
-#define CMXFCR_TF2CS_BRG5 0x00000000 /* Transmit FCC2 Clock Source is BRG5 */
-#define CMXFCR_TF2CS_BRG6 0x00010000 /* Transmit FCC2 Clock Source is BRG6 */
-#define CMXFCR_TF2CS_BRG7 0x00020000 /* Transmit FCC2 Clock Source is BRG7 */
-#define CMXFCR_TF2CS_BRG8 0x00030000 /* Transmit FCC2 Clock Source is BRG8 */
-#define CMXFCR_TF2CS_CLK13 0x00040000 /* Transmit FCC2 Clock Source is CLK13 */
-#define CMXFCR_TF2CS_CLK14 0x00050000 /* Transmit FCC2 Clock Source is CLK14 */
-#define CMXFCR_TF2CS_CLK15 0x00060000 /* Transmit FCC2 Clock Source is CLK15 */
-#define CMXFCR_TF2CS_CLK16 0x00070000 /* Transmit FCC2 Clock Source is CLK16 */
-
-#define CMXFCR_RF3CS_BRG5 0x00000000 /* Receive FCC3 Clock Source is BRG5 */
-#define CMXFCR_RF3CS_BRG6 0x00000800 /* Receive FCC3 Clock Source is BRG6 */
-#define CMXFCR_RF3CS_BRG7 0x00001000 /* Receive FCC3 Clock Source is BRG7 */
-#define CMXFCR_RF3CS_BRG8 0x00001800 /* Receive FCC3 Clock Source is BRG8 */
-#define CMXFCR_RF3CS_CLK13 0x00002000 /* Receive FCC3 Clock Source is CLK13 */
-#define CMXFCR_RF3CS_CLK14 0x00002800 /* Receive FCC3 Clock Source is CLK14 */
-#define CMXFCR_RF3CS_CLK15 0x00003000 /* Receive FCC3 Clock Source is CLK15 */
-#define CMXFCR_RF3CS_CLK16 0x00003800 /* Receive FCC3 Clock Source is CLK16 */
-
-#define CMXFCR_TF3CS_BRG5 0x00000000 /* Transmit FCC3 Clock Source is BRG5 */
-#define CMXFCR_TF3CS_BRG6 0x00000100 /* Transmit FCC3 Clock Source is BRG6 */
-#define CMXFCR_TF3CS_BRG7 0x00000200 /* Transmit FCC3 Clock Source is BRG7 */
-#define CMXFCR_TF3CS_BRG8 0x00000300 /* Transmit FCC3 Clock Source is BRG8 */
-#define CMXFCR_TF3CS_CLK13 0x00000400 /* Transmit FCC3 Clock Source is CLK13 */
-#define CMXFCR_TF3CS_CLK14 0x00000500 /* Transmit FCC3 Clock Source is CLK14 */
-#define CMXFCR_TF3CS_CLK15 0x00000600 /* Transmit FCC3 Clock Source is CLK15 */
-#define CMXFCR_TF3CS_CLK16 0x00000700 /* Transmit FCC3 Clock Source is CLK16 */
-
-/*-----------------------------------------------------------------------
- * CMXSCR - CMX SCC Clock Route Register
- */
-#define CMXSCR_GR1 0x80000000 /* Grant Support of SCC1 */
-#define CMXSCR_SC1 0x40000000 /* SCC1 connection */
-#define CMXSCR_RS1CS_MSK 0x38000000 /* Receive SCC1 Clock Source Mask */
-#define CMXSCR_TS1CS_MSK 0x07000000 /* Transmit SCC1 Clock Source Mask */
-#define CMXSCR_GR2 0x00800000 /* Grant Support of SCC2 */
-#define CMXSCR_SC2 0x00400000 /* SCC2 connection */
-#define CMXSCR_RS2CS_MSK 0x00380000 /* Receive SCC2 Clock Source Mask */
-#define CMXSCR_TS2CS_MSK 0x00070000 /* Transmit SCC2 Clock Source Mask */
-#define CMXSCR_GR3 0x00008000 /* Grant Support of SCC3 */
-#define CMXSCR_SC3 0x00004000 /* SCC3 connection */
-#define CMXSCR_RS3CS_MSK 0x00003800 /* Receive SCC3 Clock Source Mask */
-#define CMXSCR_TS3CS_MSK 0x00000700 /* Transmit SCC3 Clock Source Mask */
-#define CMXSCR_GR4 0x00000080 /* Grant Support of SCC4 */
-#define CMXSCR_SC4 0x00000040 /* SCC4 connection */
-#define CMXSCR_RS4CS_MSK 0x00000038 /* Receive SCC4 Clock Source Mask */
-#define CMXSCR_TS4CS_MSK 0x00000007 /* Transmit SCC4 Clock Source Mask */
-
-#define CMXSCR_RS1CS_BRG1 0x00000000 /* SCC1 Rx Clock Source is BRG1 */
-#define CMXSCR_RS1CS_BRG2 0x08000000 /* SCC1 Rx Clock Source is BRG2 */
-#define CMXSCR_RS1CS_BRG3 0x10000000 /* SCC1 Rx Clock Source is BRG3 */
-#define CMXSCR_RS1CS_BRG4 0x18000000 /* SCC1 Rx Clock Source is BRG4 */
-#define CMXSCR_RS1CS_CLK11 0x20000000 /* SCC1 Rx Clock Source is CLK11 */
-#define CMXSCR_RS1CS_CLK12 0x28000000 /* SCC1 Rx Clock Source is CLK12 */
-#define CMXSCR_RS1CS_CLK3 0x30000000 /* SCC1 Rx Clock Source is CLK3 */
-#define CMXSCR_RS1CS_CLK4 0x38000000 /* SCC1 Rx Clock Source is CLK4 */
-
-#define CMXSCR_TS1CS_BRG1 0x00000000 /* SCC1 Tx Clock Source is BRG1 */
-#define CMXSCR_TS1CS_BRG2 0x01000000 /* SCC1 Tx Clock Source is BRG2 */
-#define CMXSCR_TS1CS_BRG3 0x02000000 /* SCC1 Tx Clock Source is BRG3 */
-#define CMXSCR_TS1CS_BRG4 0x03000000 /* SCC1 Tx Clock Source is BRG4 */
-#define CMXSCR_TS1CS_CLK11 0x04000000 /* SCC1 Tx Clock Source is CLK11 */
-#define CMXSCR_TS1CS_CLK12 0x05000000 /* SCC1 Tx Clock Source is CLK12 */
-#define CMXSCR_TS1CS_CLK3 0x06000000 /* SCC1 Tx Clock Source is CLK3 */
-#define CMXSCR_TS1CS_CLK4 0x07000000 /* SCC1 Tx Clock Source is CLK4 */
-
-#define CMXSCR_RS2CS_BRG1 0x00000000 /* SCC2 Rx Clock Source is BRG1 */
-#define CMXSCR_RS2CS_BRG2 0x00080000 /* SCC2 Rx Clock Source is BRG2 */
-#define CMXSCR_RS2CS_BRG3 0x00100000 /* SCC2 Rx Clock Source is BRG3 */
-#define CMXSCR_RS2CS_BRG4 0x00180000 /* SCC2 Rx Clock Source is BRG4 */
-#define CMXSCR_RS2CS_CLK11 0x00200000 /* SCC2 Rx Clock Source is CLK11 */
-#define CMXSCR_RS2CS_CLK12 0x00280000 /* SCC2 Rx Clock Source is CLK12 */
-#define CMXSCR_RS2CS_CLK3 0x00300000 /* SCC2 Rx Clock Source is CLK3 */
-#define CMXSCR_RS2CS_CLK4 0x00380000 /* SCC2 Rx Clock Source is CLK4 */
-
-#define CMXSCR_TS2CS_BRG1 0x00000000 /* SCC2 Tx Clock Source is BRG1 */
-#define CMXSCR_TS2CS_BRG2 0x00010000 /* SCC2 Tx Clock Source is BRG2 */
-#define CMXSCR_TS2CS_BRG3 0x00020000 /* SCC2 Tx Clock Source is BRG3 */
-#define CMXSCR_TS2CS_BRG4 0x00030000 /* SCC2 Tx Clock Source is BRG4 */
-#define CMXSCR_TS2CS_CLK11 0x00040000 /* SCC2 Tx Clock Source is CLK11 */
-#define CMXSCR_TS2CS_CLK12 0x00050000 /* SCC2 Tx Clock Source is CLK12 */
-#define CMXSCR_TS2CS_CLK3 0x00060000 /* SCC2 Tx Clock Source is CLK3 */
-#define CMXSCR_TS2CS_CLK4 0x00070000 /* SCC2 Tx Clock Source is CLK4 */
-
-#define CMXSCR_RS3CS_BRG1 0x00000000 /* SCC3 Rx Clock Source is BRG1 */
-#define CMXSCR_RS3CS_BRG2 0x00000800 /* SCC3 Rx Clock Source is BRG2 */
-#define CMXSCR_RS3CS_BRG3 0x00001000 /* SCC3 Rx Clock Source is BRG3 */
-#define CMXSCR_RS3CS_BRG4 0x00001800 /* SCC3 Rx Clock Source is BRG4 */
-#define CMXSCR_RS3CS_CLK5 0x00002000 /* SCC3 Rx Clock Source is CLK5 */
-#define CMXSCR_RS3CS_CLK6 0x00002800 /* SCC3 Rx Clock Source is CLK6 */
-#define CMXSCR_RS3CS_CLK7 0x00003000 /* SCC3 Rx Clock Source is CLK7 */
-#define CMXSCR_RS3CS_CLK8 0x00003800 /* SCC3 Rx Clock Source is CLK8 */
-
-#define CMXSCR_TS3CS_BRG1 0x00000000 /* SCC3 Tx Clock Source is BRG1 */
-#define CMXSCR_TS3CS_BRG2 0x00000100 /* SCC3 Tx Clock Source is BRG2 */
-#define CMXSCR_TS3CS_BRG3 0x00000200 /* SCC3 Tx Clock Source is BRG3 */
-#define CMXSCR_TS3CS_BRG4 0x00000300 /* SCC3 Tx Clock Source is BRG4 */
-#define CMXSCR_TS3CS_CLK5 0x00000400 /* SCC3 Tx Clock Source is CLK5 */
-#define CMXSCR_TS3CS_CLK6 0x00000500 /* SCC3 Tx Clock Source is CLK6 */
-#define CMXSCR_TS3CS_CLK7 0x00000600 /* SCC3 Tx Clock Source is CLK7 */
-#define CMXSCR_TS3CS_CLK8 0x00000700 /* SCC3 Tx Clock Source is CLK8 */
-
-#define CMXSCR_RS4CS_BRG1 0x00000000 /* SCC4 Rx Clock Source is BRG1 */
-#define CMXSCR_RS4CS_BRG2 0x00000008 /* SCC4 Rx Clock Source is BRG2 */
-#define CMXSCR_RS4CS_BRG3 0x00000010 /* SCC4 Rx Clock Source is BRG3 */
-#define CMXSCR_RS4CS_BRG4 0x00000018 /* SCC4 Rx Clock Source is BRG4 */
-#define CMXSCR_RS4CS_CLK5 0x00000020 /* SCC4 Rx Clock Source is CLK5 */
-#define CMXSCR_RS4CS_CLK6 0x00000028 /* SCC4 Rx Clock Source is CLK6 */
-#define CMXSCR_RS4CS_CLK7 0x00000030 /* SCC4 Rx Clock Source is CLK7 */
-#define CMXSCR_RS4CS_CLK8 0x00000038 /* SCC4 Rx Clock Source is CLK8 */
-
-#define CMXSCR_TS4CS_BRG1 0x00000000 /* SCC4 Tx Clock Source is BRG1 */
-#define CMXSCR_TS4CS_BRG2 0x00000001 /* SCC4 Tx Clock Source is BRG2 */
-#define CMXSCR_TS4CS_BRG3 0x00000002 /* SCC4 Tx Clock Source is BRG3 */
-#define CMXSCR_TS4CS_BRG4 0x00000003 /* SCC4 Tx Clock Source is BRG4 */
-#define CMXSCR_TS4CS_CLK5 0x00000004 /* SCC4 Tx Clock Source is CLK5 */
-#define CMXSCR_TS4CS_CLK6 0x00000005 /* SCC4 Tx Clock Source is CLK6 */
-#define CMXSCR_TS4CS_CLK7 0x00000006 /* SCC4 Tx Clock Source is CLK7 */
-#define CMXSCR_TS4CS_CLK8 0x00000007 /* SCC4 Tx Clock Source is CLK8 */
-
-#endif /* __CPM2__ */
-#endif /* __KERNEL__ */
-
-
+++ /dev/null
-/*
- * include/asm-ppc/fsl_ocp.h
- *
- * Definitions for the on-chip peripherals on Freescale PPC processors
- *
- * Maintainer: Kumar Gala (kumar.gala@freescale.com)
- *
- * Copyright 2004 Freescale Semiconductor, Inc
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifdef __KERNEL__
-#ifndef __ASM_FS_OCP_H__
-#define __ASM_FS_OCP_H__
-
-/* A table of information for supporting the Gianfar Ethernet Controller
- * This helps identify which enet controller we are dealing with,
- * and what type of enet controller it is
- */
-struct ocp_gfar_data {
- uint interruptTransmit;
- uint interruptError;
- uint interruptReceive;
- uint interruptPHY;
- uint flags;
- uint phyid;
- uint phyregidx;
- unsigned char mac_addr[6];
-};
-
-/* Flags in the flags field */
-#define GFAR_HAS_COALESCE 0x20
-#define GFAR_HAS_RMON 0x10
-#define GFAR_HAS_MULTI_INTR 0x08
-#define GFAR_FIRM_SET_MACADDR 0x04
-#define GFAR_HAS_PHY_INTR 0x02 /* if not set use a timer */
-#define GFAR_HAS_GIGABIT 0x01
-
-/* Data structure for I2C support. Just contains a couple flags
- * to distinguish various I2C implementations*/
-struct ocp_fs_i2c_data {
- uint flags;
-};
-
-/* Flags for I2C */
-#define FS_I2C_SEPARATE_DFSRR 0x02
-#define FS_I2C_32BIT 0x01
-
-#endif /* __ASM_FS_OCP_H__ */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * include/asm-ppc/immap_85xx.h
- *
- * MPC85xx Internal Memory Map
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor, Inc
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifdef __KERNEL__
-#ifndef __ASM_IMMAP_85XX_H__
-#define __ASM_IMMAP_85XX_H__
-
-/* Eventually this should define all the IO block registers in 85xx */
-
-/* PCI Registers */
-typedef struct ccsr_pci {
- uint cfg_addr; /* 0x.000 - PCI Configuration Address Register */
- uint cfg_data; /* 0x.004 - PCI Configuration Data Register */
- uint int_ack; /* 0x.008 - PCI Interrupt Acknowledge Register */
- char res1[3060];
- uint potar0; /* 0x.c00 - PCI Outbound Transaction Address Register 0 */
- uint potear0; /* 0x.c04 - PCI Outbound Translation Extended Address Register 0 */
- uint powbar0; /* 0x.c08 - PCI Outbound Window Base Address Register 0 */
- char res2[4];
- uint powar0; /* 0x.c10 - PCI Outbound Window Attributes Register 0 */
- char res3[12];
- uint potar1; /* 0x.c20 - PCI Outbound Transaction Address Register 1 */
- uint potear1; /* 0x.c24 - PCI Outbound Translation Extended Address Register 1 */
- uint powbar1; /* 0x.c28 - PCI Outbound Window Base Address Register 1 */
- char res4[4];
- uint powar1; /* 0x.c30 - PCI Outbound Window Attributes Register 1 */
- char res5[12];
- uint potar2; /* 0x.c40 - PCI Outbound Transaction Address Register 2 */
- uint potear2; /* 0x.c44 - PCI Outbound Translation Extended Address Register 2 */
- uint powbar2; /* 0x.c48 - PCI Outbound Window Base Address Register 2 */
- char res6[4];
- uint powar2; /* 0x.c50 - PCI Outbound Window Attributes Register 2 */
- char res7[12];
- uint potar3; /* 0x.c60 - PCI Outbound Transaction Address Register 3 */
- uint potear3; /* 0x.c64 - PCI Outbound Translation Extended Address Register 3 */
- uint powbar3; /* 0x.c68 - PCI Outbound Window Base Address Register 3 */
- char res8[4];
- uint powar3; /* 0x.c70 - PCI Outbound Window Attributes Register 3 */
- char res9[12];
- uint potar4; /* 0x.c80 - PCI Outbound Transaction Address Register 4 */
- uint potear4; /* 0x.c84 - PCI Outbound Translation Extended Address Register 4 */
- uint powbar4; /* 0x.c88 - PCI Outbound Window Base Address Register 4 */
- char res10[4];
- uint powar4; /* 0x.c90 - PCI Outbound Window Attributes Register 4 */
- char res11[268];
- uint pitar3; /* 0x.da0 - PCI Inbound Translation Address Register 3 */
- char res12[4];
- uint piwbar3; /* 0x.da8 - PCI Inbound Window Base Address Register 3 */
- uint piwbear3; /* 0x.dac - PCI Inbound Window Base Extended Address Register 3 */
- uint piwar3; /* 0x.db0 - PCI Inbound Window Attributes Register 3 */
- char res13[12];
- uint pitar2; /* 0x.dc0 - PCI Inbound Translation Address Register 2 */
- char res14[4];
- uint piwbar2; /* 0x.dc8 - PCI Inbound Window Base Address Register 2 */
- uint piwbear2; /* 0x.dcc - PCI Inbound Window Base Extended Address Register 2 */
- uint piwar2; /* 0x.dd0 - PCI Inbound Window Attributes Register 2 */
- char res15[12];
- uint pitar1; /* 0x.de0 - PCI Inbound Translation Address Register 1 */
- char res16[4];
- uint piwbar1; /* 0x.de8 - PCI Inbound Window Base Address Register 1 */
- char res17[4];
- uint piwar1; /* 0x.df0 - PCI Inbound Window Attributes Register 1 */
- char res18[12];
- uint err_dr; /* 0x.e00 - PCI Error Detect Register */
- uint err_cap_dr; /* 0x.e04 - PCI Error Capture Disable Register */
- uint err_en; /* 0x.e08 - PCI Error Enable Register */
- uint err_attrib; /* 0x.e0c - PCI Error Attributes Capture Register */
- uint err_addr; /* 0x.e10 - PCI Error Address Capture Register */
- uint err_ext_addr; /* 0x.e14 - PCI Error Extended Address Capture Register */
- uint err_dl; /* 0x.e18 - PCI Error Data Low Capture Register */
- uint err_dh; /* 0x.e1c - PCI Error Data High Capture Register */
- uint gas_timr; /* 0x.e20 - PCI Gasket Timer Register */
- uint pci_timr; /* 0x.e24 - PCI Timer Register */
- char res19[472];
-} ccsr_pci_t;
-
-/* Global Utility Registers */
-typedef struct ccsr_guts {
- uint porpllsr; /* 0x.0000 - POR PLL Ratio Status Register */
- uint porbmsr; /* 0x.0004 - POR Boot Mode Status Register */
- uint porimpscr; /* 0x.0008 - POR I/O Impedance Status and Control Register */
- uint pordevsr; /* 0x.000c - POR I/O Device Status Register */
- uint pordbgmsr; /* 0x.0010 - POR Debug Mode Status Register */
- char res1[12];
- uint gpporcr; /* 0x.0020 - General-Purpose POR Configuration Register */
- char res2[12];
- uint gpiocr; /* 0x.0030 - GPIO Control Register */
- char res3[12];
- uint gpoutdr; /* 0x.0040 - General-Purpose Output Data Register */
- char res4[12];
- uint gpindr; /* 0x.0050 - General-Purpose Input Data Register */
- char res5[12];
- uint pmuxcr; /* 0x.0060 - Alternate Function Signal Multiplex Control */
- char res6[12];
- uint devdisr; /* 0x.0070 - Device Disable Control */
- char res7[12];
- uint powmgtcsr; /* 0x.0080 - Power Management Status and Control Register */
- char res8[12];
- uint mcpsumr; /* 0x.0090 - Machine Check Summary Register */
- char res9[12];
- uint pvr; /* 0x.00a0 - Processor Version Register */
- uint svr; /* 0x.00a4 - System Version Register */
- char res10[3416];
- uint clkocr; /* 0x.0e00 - Clock Out Select Register */
- char res11[12];
- uint ddrdllcr; /* 0x.0e10 - DDR DLL Control Register */
- char res12[12];
- uint lbcdllcr; /* 0x.0e20 - LBC DLL Control Register */
- char res13[61916];
-} ccsr_guts_t;
-
-#endif /* __ASM_IMMAP_85XX_H__ */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * CPM2 Internal Memory Map
- * Copyright (c) 1999 Dan Malek (dmalek@jlc.net)
- *
- * The Internal Memory Map for devices with CPM2 on them. This
- * is the superset of all CPM2 devices (8260, 8266, 8280, 8272,
- * 8560).
- */
-#ifdef __KERNEL__
-#ifndef __IMMAP_CPM2__
-#define __IMMAP_CPM2__
-
-/* System configuration registers.
-*/
-typedef struct sys_82xx_conf {
- u32 sc_siumcr;
- u32 sc_sypcr;
- u8 res1[6];
- u16 sc_swsr;
- u8 res2[20];
- u32 sc_bcr;
- u8 sc_ppc_acr;
- u8 res3[3];
- u32 sc_ppc_alrh;
- u32 sc_ppc_alrl;
- u8 sc_lcl_acr;
- u8 res4[3];
- u32 sc_lcl_alrh;
- u32 sc_lcl_alrl;
- u32 sc_tescr1;
- u32 sc_tescr2;
- u32 sc_ltescr1;
- u32 sc_ltescr2;
- u32 sc_pdtea;
- u8 sc_pdtem;
- u8 res5[3];
- u32 sc_ldtea;
- u8 sc_ldtem;
- u8 res6[163];
-} sysconf_82xx_cpm2_t;
-
-typedef struct sys_85xx_conf {
- u32 sc_cear;
- u16 sc_ceer;
- u16 sc_cemr;
- u8 res1[70];
- u32 sc_smaer;
- u8 res2[4];
- u32 sc_smevr;
- u32 sc_smctr;
- u32 sc_lmaer;
- u8 res3[4];
- u32 sc_lmevr;
- u32 sc_lmctr;
- u8 res4[144];
-} sysconf_85xx_cpm2_t;
-
-typedef union sys_conf {
- sysconf_82xx_cpm2_t siu_82xx;
- sysconf_85xx_cpm2_t siu_85xx;
-} sysconf_cpm2_t;
-
-
-
-/* Memory controller registers.
-*/
-typedef struct mem_ctlr {
- u32 memc_br0;
- u32 memc_or0;
- u32 memc_br1;
- u32 memc_or1;
- u32 memc_br2;
- u32 memc_or2;
- u32 memc_br3;
- u32 memc_or3;
- u32 memc_br4;
- u32 memc_or4;
- u32 memc_br5;
- u32 memc_or5;
- u32 memc_br6;
- u32 memc_or6;
- u32 memc_br7;
- u32 memc_or7;
- u32 memc_br8;
- u32 memc_or8;
- u32 memc_br9;
- u32 memc_or9;
- u32 memc_br10;
- u32 memc_or10;
- u32 memc_br11;
- u32 memc_or11;
- u8 res1[8];
- u32 memc_mar;
- u8 res2[4];
- u32 memc_mamr;
- u32 memc_mbmr;
- u32 memc_mcmr;
- u8 res3[8];
- u16 memc_mptpr;
- u8 res4[2];
- u32 memc_mdr;
- u8 res5[4];
- u32 memc_psdmr;
- u32 memc_lsdmr;
- u8 memc_purt;
- u8 res6[3];
- u8 memc_psrt;
- u8 res7[3];
- u8 memc_lurt;
- u8 res8[3];
- u8 memc_lsrt;
- u8 res9[3];
- u32 memc_immr;
- u32 memc_pcibr0;
- u32 memc_pcibr1;
- u8 res10[16];
- u32 memc_pcimsk0;
- u32 memc_pcimsk1;
- u8 res11[52];
-} memctl_cpm2_t;
-
-/* System Integration Timers.
-*/
-typedef struct sys_int_timers {
- u8 res1[32];
- u16 sit_tmcntsc;
- u8 res2[2];
- u32 sit_tmcnt;
- u8 res3[4];
- u32 sit_tmcntal;
- u8 res4[16];
- u16 sit_piscr;
- u8 res5[2];
- u32 sit_pitc;
- u32 sit_pitr;
- u8 res6[92];
- u8 res7[390];
-} sit_cpm2_t;
-
-#define PISCR_PIRQ_MASK ((u16)0xff00)
-#define PISCR_PS ((u16)0x0080)
-#define PISCR_PIE ((u16)0x0004)
-#define PISCR_PTF ((u16)0x0002)
-#define PISCR_PTE ((u16)0x0001)
-
-/* PCI Controller.
-*/
-typedef struct pci_ctlr {
- u32 pci_omisr;
- u32 pci_omimr;
- u8 res1[8];
- u32 pci_ifqpr;
- u32 pci_ofqpr;
- u8 res2[8];
- u32 pci_imr0;
- u32 pci_imr1;
- u32 pci_omr0;
- u32 pci_omr1;
- u32 pci_odr;
- u8 res3[4];
- u32 pci_idr;
- u8 res4[20];
- u32 pci_imisr;
- u32 pci_imimr;
- u8 res5[24];
- u32 pci_ifhpr;
- u8 res6[4];
- u32 pci_iftpr;
- u8 res7[4];
- u32 pci_iphpr;
- u8 res8[4];
- u32 pci_iptpr;
- u8 res9[4];
- u32 pci_ofhpr;
- u8 res10[4];
- u32 pci_oftpr;
- u8 res11[4];
- u32 pci_ophpr;
- u8 res12[4];
- u32 pci_optpr;
- u8 res13[8];
- u32 pci_mucr;
- u8 res14[8];
- u32 pci_qbar;
- u8 res15[12];
- u32 pci_dmamr0;
- u32 pci_dmasr0;
- u32 pci_dmacdar0;
- u8 res16[4];
- u32 pci_dmasar0;
- u8 res17[4];
- u32 pci_dmadar0;
- u8 res18[4];
- u32 pci_dmabcr0;
- u32 pci_dmandar0;
- u8 res19[86];
- u32 pci_dmamr1;
- u32 pci_dmasr1;
- u32 pci_dmacdar1;
- u8 res20[4];
- u32 pci_dmasar1;
- u8 res21[4];
- u32 pci_dmadar1;
- u8 res22[4];
- u32 pci_dmabcr1;
- u32 pci_dmandar1;
- u8 res23[88];
- u32 pci_dmamr2;
- u32 pci_dmasr2;
- u32 pci_dmacdar2;
- u8 res24[4];
- u32 pci_dmasar2;
- u8 res25[4];
- u32 pci_dmadar2;
- u8 res26[4];
- u32 pci_dmabcr2;
- u32 pci_dmandar2;
- u8 res27[88];
- u32 pci_dmamr3;
- u32 pci_dmasr3;
- u32 pci_dmacdar3;
- u8 res28[4];
- u32 pci_dmasar3;
- u8 res29[4];
- u32 pci_dmadar3;
- u8 res30[4];
- u32 pci_dmabcr3;
- u32 pci_dmandar3;
- u8 res31[344];
- u32 pci_potar0;
- u8 res32[4];
- u32 pci_pobar0;
- u8 res33[4];
- u32 pci_pocmr0;
- u8 res34[4];
- u32 pci_potar1;
- u8 res35[4];
- u32 pci_pobar1;
- u8 res36[4];
- u32 pci_pocmr1;
- u8 res37[4];
- u32 pci_potar2;
- u8 res38[4];
- u32 pci_pobar2;
- u8 res39[4];
- u32 pci_pocmr2;
- u8 res40[50];
- u32 pci_ptcr;
- u32 pci_gpcr;
- u32 pci_gcr;
- u32 pci_esr;
- u32 pci_emr;
- u32 pci_ecr;
- u32 pci_eacr;
- u8 res41[4];
- u32 pci_edcr;
- u8 res42[4];
- u32 pci_eccr;
- u8 res43[44];
- u32 pci_pitar1;
- u8 res44[4];
- u32 pci_pibar1;
- u8 res45[4];
- u32 pci_picmr1;
- u8 res46[4];
- u32 pci_pitar0;
- u8 res47[4];
- u32 pci_pibar0;
- u8 res48[4];
- u32 pci_picmr0;
- u8 res49[4];
- u32 pci_cfg_addr;
- u32 pci_cfg_data;
- u32 pci_int_ack;
- u8 res50[756];
-} pci_cpm2_t;
-
-/* Interrupt Controller.
-*/
-typedef struct interrupt_controller {
- u16 ic_sicr;
- u8 res1[2];
- u32 ic_sivec;
- u32 ic_sipnrh;
- u32 ic_sipnrl;
- u32 ic_siprr;
- u32 ic_scprrh;
- u32 ic_scprrl;
- u32 ic_simrh;
- u32 ic_simrl;
- u32 ic_siexr;
- u8 res2[88];
-} intctl_cpm2_t;
-
-/* Clocks and Reset.
-*/
-typedef struct clk_and_reset {
- u32 car_sccr;
- u8 res1[4];
- u32 car_scmr;
- u8 res2[4];
- u32 car_rsr;
- u32 car_rmr;
- u8 res[104];
-} car_cpm2_t;
-
-/* Input/Output Port control/status registers.
- * Names consistent with processor manual, although they are different
- * from the original 8xx names.......
- */
-typedef struct io_port {
- u32 iop_pdira;
- u32 iop_ppara;
- u32 iop_psora;
- u32 iop_podra;
- u32 iop_pdata;
- u8 res1[12];
- u32 iop_pdirb;
- u32 iop_pparb;
- u32 iop_psorb;
- u32 iop_podrb;
- u32 iop_pdatb;
- u8 res2[12];
- u32 iop_pdirc;
- u32 iop_pparc;
- u32 iop_psorc;
- u32 iop_podrc;
- u32 iop_pdatc;
- u8 res3[12];
- u32 iop_pdird;
- u32 iop_ppard;
- u32 iop_psord;
- u32 iop_podrd;
- u32 iop_pdatd;
- u8 res4[12];
-} iop_cpm2_t;
-
-/* Communication Processor Module Timers
-*/
-typedef struct cpm_timers {
- u8 cpmt_tgcr1;
- u8 res1[3];
- u8 cpmt_tgcr2;
- u8 res2[11];
- u16 cpmt_tmr1;
- u16 cpmt_tmr2;
- u16 cpmt_trr1;
- u16 cpmt_trr2;
- u16 cpmt_tcr1;
- u16 cpmt_tcr2;
- u16 cpmt_tcn1;
- u16 cpmt_tcn2;
- u16 cpmt_tmr3;
- u16 cpmt_tmr4;
- u16 cpmt_trr3;
- u16 cpmt_trr4;
- u16 cpmt_tcr3;
- u16 cpmt_tcr4;
- u16 cpmt_tcn3;
- u16 cpmt_tcn4;
- u16 cpmt_ter1;
- u16 cpmt_ter2;
- u16 cpmt_ter3;
- u16 cpmt_ter4;
- u8 res3[584];
-} cpmtimer_cpm2_t;
-
-/* DMA control/status registers.
-*/
-typedef struct sdma_csr {
- u8 res0[24];
- u8 sdma_sdsr;
- u8 res1[3];
- u8 sdma_sdmr;
- u8 res2[3];
- u8 sdma_idsr1;
- u8 res3[3];
- u8 sdma_idmr1;
- u8 res4[3];
- u8 sdma_idsr2;
- u8 res5[3];
- u8 sdma_idmr2;
- u8 res6[3];
- u8 sdma_idsr3;
- u8 res7[3];
- u8 sdma_idmr3;
- u8 res8[3];
- u8 sdma_idsr4;
- u8 res9[3];
- u8 sdma_idmr4;
- u8 res10[707];
-} sdma_cpm2_t;
-
-/* Fast controllers
-*/
-typedef struct fcc {
- u32 fcc_gfmr;
- u32 fcc_fpsmr;
- u16 fcc_ftodr;
- u8 res1[2];
- u16 fcc_fdsr;
- u8 res2[2];
- u16 fcc_fcce;
- u8 res3[2];
- u16 fcc_fccm;
- u8 res4[2];
- u8 fcc_fccs;
- u8 res5[3];
- u8 fcc_ftirr_phy[4];
-} fcc_t;
-
-/* Fast controllers continued
- */
-typedef struct fcc_c {
- u32 fcc_firper;
- u32 fcc_firer;
- u32 fcc_firsr_hi;
- u32 fcc_firsr_lo;
- u8 fcc_gfemr;
- u8 res1[15];
-} fcc_c_t;
-
-/* TC Layer
- */
-typedef struct tclayer {
- u16 tc_tcmode;
- u16 tc_cdsmr;
- u16 tc_tcer;
- u16 tc_rcc;
- u16 tc_tcmr;
- u16 tc_fcc;
- u16 tc_ccc;
- u16 tc_icc;
- u16 tc_tcc;
- u16 tc_ecc;
- u8 res1[12];
-} tclayer_t;
-
-
-/* I2C
-*/
-typedef struct i2c {
- u8 i2c_i2mod;
- u8 res1[3];
- u8 i2c_i2add;
- u8 res2[3];
- u8 i2c_i2brg;
- u8 res3[3];
- u8 i2c_i2com;
- u8 res4[3];
- u8 i2c_i2cer;
- u8 res5[3];
- u8 i2c_i2cmr;
- u8 res6[331];
-} i2c_cpm2_t;
-
-typedef struct scc { /* Serial communication channels */
- u32 scc_gsmrl;
- u32 scc_gsmrh;
- u16 scc_psmr;
- u8 res1[2];
- u16 scc_todr;
- u16 scc_dsr;
- u16 scc_scce;
- u8 res2[2];
- u16 scc_sccm;
- u8 res3;
- u8 scc_sccs;
- u8 res4[8];
-} scc_t;
-
-typedef struct smc { /* Serial management channels */
- u8 res1[2];
- u16 smc_smcmr;
- u8 res2[2];
- u8 smc_smce;
- u8 res3[3];
- u8 smc_smcm;
- u8 res4[5];
-} smc_t;
-
-/* Serial Peripheral Interface.
-*/
-typedef struct spi_ctrl {
- u16 spi_spmode;
- u8 res1[4];
- u8 spi_spie;
- u8 res2[3];
- u8 spi_spim;
- u8 res3[2];
- u8 spi_spcom;
- u8 res4[82];
-} spictl_cpm2_t;
-
-/* CPM Mux.
-*/
-typedef struct cpmux {
- u8 cmx_si1cr;
- u8 res1;
- u8 cmx_si2cr;
- u8 res2;
- u32 cmx_fcr;
- u32 cmx_scr;
- u8 cmx_smr;
- u8 res3;
- u16 cmx_uar;
- u8 res4[16];
-} cpmux_t;
-
-/* SIRAM control
-*/
-typedef struct siram {
- u16 si_amr;
- u16 si_bmr;
- u16 si_cmr;
- u16 si_dmr;
- u8 si_gmr;
- u8 res1;
- u8 si_cmdr;
- u8 res2;
- u8 si_str;
- u8 res3;
- u16 si_rsr;
-} siramctl_t;
-
-typedef struct mcc {
- u16 mcc_mcce;
- u8 res1[2];
- u16 mcc_mccm;
- u8 res2[2];
- u8 mcc_mccf;
- u8 res3[7];
-} mcc_t;
-
-typedef struct comm_proc {
- u32 cp_cpcr;
- u32 cp_rccr;
- u8 res1[14];
- u16 cp_rter;
- u8 res2[2];
- u16 cp_rtmr;
- u16 cp_rtscr;
- u8 res3[2];
- u32 cp_rtsr;
- u8 res4[12];
-} cpm_cpm2_t;
-
-/* USB Controller.
-*/
-typedef struct usb_ctlr {
- u8 usb_usmod;
- u8 usb_usadr;
- u8 usb_uscom;
- u8 res1[1];
- u16 usb_usep1;
- u16 usb_usep2;
- u16 usb_usep3;
- u16 usb_usep4;
- u8 res2[4];
- u16 usb_usber;
- u8 res3[2];
- u16 usb_usbmr;
- u8 usb_usbs;
- u8 res4[7];
-} usb_cpm2_t;
-
-/* ...and the whole thing wrapped up....
-*/
-
-typedef struct immap {
- /* Some references are into the unique and known dpram spaces,
- * others are from the generic base.
- */
-#define im_dprambase im_dpram1
- u8 im_dpram1[16*1024];
- u8 res1[16*1024];
- u8 im_dpram2[4*1024];
- u8 res2[8*1024];
- u8 im_dpram3[4*1024];
- u8 res3[16*1024];
-
- sysconf_cpm2_t im_siu_conf; /* SIU Configuration */
- memctl_cpm2_t im_memctl; /* Memory Controller */
- sit_cpm2_t im_sit; /* System Integration Timers */
- pci_cpm2_t im_pci; /* PCI Controller */
- intctl_cpm2_t im_intctl; /* Interrupt Controller */
- car_cpm2_t im_clkrst; /* Clocks and reset */
- iop_cpm2_t im_ioport; /* IO Port control/status */
- cpmtimer_cpm2_t im_cpmtimer; /* CPM timers */
- sdma_cpm2_t im_sdma; /* SDMA control/status */
-
- fcc_t im_fcc[3]; /* Three FCCs */
- u8 res4z[32];
- fcc_c_t im_fcc_c[3]; /* Continued FCCs */
-
- u8 res4[32];
-
- tclayer_t im_tclayer[8]; /* Eight TCLayers */
- u16 tc_tcgsr;
- u16 tc_tcger;
-
- /* First set of baud rate generators.
- */
- u8 res[236];
- u32 im_brgc5;
- u32 im_brgc6;
- u32 im_brgc7;
- u32 im_brgc8;
-
- u8 res5[608];
-
- i2c_cpm2_t im_i2c; /* I2C control/status */
- cpm_cpm2_t im_cpm; /* Communication processor */
-
- /* Second set of baud rate generators.
- */
- u32 im_brgc1;
- u32 im_brgc2;
- u32 im_brgc3;
- u32 im_brgc4;
-
- scc_t im_scc[4]; /* Four SCCs */
- smc_t im_smc[2]; /* Couple of SMCs */
- spictl_cpm2_t im_spi; /* A SPI */
- cpmux_t im_cpmux; /* CPM clock route mux */
- siramctl_t im_siramctl1; /* First SI RAM Control */
- mcc_t im_mcc1; /* First MCC */
- siramctl_t im_siramctl2; /* Second SI RAM Control */
- mcc_t im_mcc2; /* Second MCC */
- usb_cpm2_t im_usb; /* USB Controller */
-
- u8 res6[1153];
-
- u16 im_si1txram[256];
- u8 res7[512];
- u16 im_si1rxram[256];
- u8 res8[512];
- u16 im_si2txram[256];
- u8 res9[512];
- u16 im_si2rxram[256];
- u8 res10[512];
- u8 res11[4096];
-} cpm2_map_t;
-
-extern cpm2_map_t *cpm2_immr;
-
-#endif /* __IMMAP_CPM2__ */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * include/asm-ppc/m8260_pci.h
- *
- * Definitions for the MPC8250/MPC8265/MPC8266 integrated PCI host bridge.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifdef __KERNEL__
-#ifndef __M8260_PCI_H
-#define __M8260_PCI_H
-
-#include <linux/pci_ids.h>
-
-/*
- * Define the vendor/device ID for the MPC8265.
- */
-#define PCI_DEVICE_ID_MPC8265 ((0x18C0 << 16) | PCI_VENDOR_ID_MOTOROLA)
-
-#define M8265_PCIBR0 0x101ac
-#define M8265_PCIBR1 0x101b0
-#define M8265_PCIMSK0 0x101c4
-#define M8265_PCIMSK1 0x101c8
-
-/* Bit definitions for PCIBR registers */
-
-#define PCIBR_ENABLE 0x00000001
-
-/* Bit definitions for PCIMSK registers */
-
-#define PCIMSK_32KiB 0xFFFF8000 /* Size of window, smallest */
-#define PCIMSK_64KiB 0xFFFF0000
-#define PCIMSK_128KiB 0xFFFE0000
-#define PCIMSK_256KiB 0xFFFC0000
-#define PCIMSK_512KiB 0xFFF80000
-#define PCIMSK_1MiB 0xFFF00000
-#define PCIMSK_2MiB 0xFFE00000
-#define PCIMSK_4MiB 0xFFC00000
-#define PCIMSK_8MiB 0xFF800000
-#define PCIMSK_16MiB 0xFF000000
-#define PCIMSK_32MiB 0xFE000000
-#define PCIMSK_64MiB 0xFC000000
-#define PCIMSK_128MiB 0xF8000000
-#define PCIMSK_256MiB 0xF0000000
-#define PCIMSK_512MiB 0xE0000000
-#define PCIMSK_1GiB 0xC0000000 /* Size of window, largest */
-
-
-#define M826X_SCCR_PCI_MODE_EN 0x100
-
-
-/*
- * Outbound ATU registers (3 sets). These registers control how 60x bus (local)
- * addresses are translated to PCI addresses when the MPC826x is a PCI bus
- * master (initiator).
- */
-
-#define POTAR_REG0 0x10800 /* PCI Outbound Translation Addr registers */
-#define POTAR_REG1 0x10818
-#define POTAR_REG2 0x10830
-
-#define POBAR_REG0 0x10808 /* PCI Outbound Base Addr registers */
-#define POBAR_REG1 0x10820
-#define POBAR_REG2 0x10838
-
-#define POCMR_REG0 0x10810 /* PCI Outbound Comparison Mask registers */
-#define POCMR_REG1 0x10828
-#define POCMR_REG2 0x10840
-
-/* Bit definitions for POMCR registers */
-
-#define POCMR_MASK_4KiB 0x000FFFFF
-#define POCMR_MASK_8KiB 0x000FFFFE
-#define POCMR_MASK_16KiB 0x000FFFFC
-#define POCMR_MASK_32KiB 0x000FFFF8
-#define POCMR_MASK_64KiB 0x000FFFF0
-#define POCMR_MASK_128KiB 0x000FFFE0
-#define POCMR_MASK_256KiB 0x000FFFC0
-#define POCMR_MASK_512KiB 0x000FFF80
-#define POCMR_MASK_1MiB 0x000FFF00
-#define POCMR_MASK_2MiB 0x000FFE00
-#define POCMR_MASK_4MiB 0x000FFC00
-#define POCMR_MASK_8MiB 0x000FF800
-#define POCMR_MASK_16MiB 0x000FF000
-#define POCMR_MASK_32MiB 0x000FE000
-#define POCMR_MASK_64MiB 0x000FC000
-#define POCMR_MASK_128MiB 0x000F8000
-#define POCMR_MASK_256MiB 0x000F0000
-#define POCMR_MASK_512MiB 0x000E0000
-#define POCMR_MASK_1GiB 0x000C0000
-
-#define POCMR_ENABLE 0x80000000
-#define POCMR_PCI_IO 0x40000000
-#define POCMR_PREFETCH_EN 0x20000000
-
-/* Soft PCI reset */
-
-#define PCI_GCR_REG 0x10880
-
-/* Bit definitions for PCI_GCR registers */
-
-#define PCIGCR_PCI_BUS_EN 0x1
-
-#define PCI_EMR_REG 0x10888
-/*
- * Inbound ATU registers (2 sets). These registers control how PCI addresses
- * are translated to 60x bus (local) addresses when the MPC826x is a PCI bus target.
- */
-
-#define PITAR_REG1 0x108D0
-#define PIBAR_REG1 0x108D8
-#define PICMR_REG1 0x108E0
-#define PITAR_REG0 0x108E8
-#define PIBAR_REG0 0x108F0
-#define PICMR_REG0 0x108F8
-
-/* Bit definitions for PCI Inbound Comparison Mask registers */
-
-#define PICMR_MASK_4KiB 0x000FFFFF
-#define PICMR_MASK_8KiB 0x000FFFFE
-#define PICMR_MASK_16KiB 0x000FFFFC
-#define PICMR_MASK_32KiB 0x000FFFF8
-#define PICMR_MASK_64KiB 0x000FFFF0
-#define PICMR_MASK_128KiB 0x000FFFE0
-#define PICMR_MASK_256KiB 0x000FFFC0
-#define PICMR_MASK_512KiB 0x000FFF80
-#define PICMR_MASK_1MiB 0x000FFF00
-#define PICMR_MASK_2MiB 0x000FFE00
-#define PICMR_MASK_4MiB 0x000FFC00
-#define PICMR_MASK_8MiB 0x000FF800
-#define PICMR_MASK_16MiB 0x000FF000
-#define PICMR_MASK_32MiB 0x000FE000
-#define PICMR_MASK_64MiB 0x000FC000
-#define PICMR_MASK_128MiB 0x000F8000
-#define PICMR_MASK_256MiB 0x000F0000
-#define PICMR_MASK_512MiB 0x000E0000
-#define PICMR_MASK_1GiB 0x000C0000
-
-#define PICMR_ENABLE 0x80000000
-#define PICMR_NO_SNOOP_EN 0x40000000
-#define PICMR_PREFETCH_EN 0x20000000
-
-/* PCI error Registers */
-
-#define PCI_ERROR_STATUS_REG 0x10884
-#define PCI_ERROR_MASK_REG 0x10888
-#define PCI_ERROR_CONTROL_REG 0x1088C
-#define PCI_ERROR_ADRS_CAPTURE_REG 0x10890
-#define PCI_ERROR_DATA_CAPTURE_REG 0x10898
-#define PCI_ERROR_CTRL_CAPTURE_REG 0x108A0
-
-/* PCI error Register bit defines */
-
-#define PCI_ERROR_PCI_ADDR_PAR 0x00000001
-#define PCI_ERROR_PCI_DATA_PAR_WR 0x00000002
-#define PCI_ERROR_PCI_DATA_PAR_RD 0x00000004
-#define PCI_ERROR_PCI_NO_RSP 0x00000008
-#define PCI_ERROR_PCI_TAR_ABT 0x00000010
-#define PCI_ERROR_PCI_SERR 0x00000020
-#define PCI_ERROR_PCI_PERR_RD 0x00000040
-#define PCI_ERROR_PCI_PERR_WR 0x00000080
-#define PCI_ERROR_I2O_OFQO 0x00000100
-#define PCI_ERROR_I2O_IPQO 0x00000200
-#define PCI_ERROR_IRA 0x00000400
-#define PCI_ERROR_NMI 0x00000800
-#define PCI_ERROR_I2O_DBMC 0x00001000
-
-/*
- * Register pair used to generate configuration cycles on the PCI bus
- * and access the MPC826x's own PCI configuration registers.
- */
-
-#define PCI_CFG_ADDR_REG 0x10900
-#define PCI_CFG_DATA_REG 0x10904
-
-/* Bus parking decides where the bus control sits when idle */
-/* If modifying memory controllers for PCI park on the core */
-
-#define PPC_ACR_BUS_PARK_CORE 0x6
-#define PPC_ACR_BUS_PARK_PCI 0x3
-
-#endif /* __M8260_PCI_H */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * include/asm-ppc/mpc52xx.h
- *
- * Prototypes, etc. for the Freescale MPC52xx embedded cpu chips
- * May need to be cleaned as the port goes on ...
- *
- *
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Originally written by Dale Farnsworth <dfarnsworth@mvista.com>
- * for the 2.4 kernel.
- *
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 MontaVista, Software, Inc.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#ifndef __ASM_MPC52xx_H__
-#define __ASM_MPC52xx_H__
-
-#ifndef __ASSEMBLY__
-#include <asm/ppcboot.h>
-#include <asm/types.h>
-
-struct pt_regs;
-struct ocp_def;
-#endif /* __ASSEMBLY__ */
-
-
-/* ======================================================================== */
-/* Main registers/struct addresses */
-/* ======================================================================== */
-/* Theses are PHYSICAL addresses ! */
-/* TODO : There should be no static mapping, but it's not yet the case, so */
-/* we require a 1:1 mapping */
-
-#define MPC52xx_MBAR 0xf0000000 /* Phys address */
-#define MPC52xx_MBAR_SIZE 0x00010000
-#define MPC52xx_MBAR_VIRT 0xf0000000 /* Virt address */
-
-#define MPC52xx_MMAP_CTL (MPC52xx_MBAR + 0x0000)
-#define MPC52xx_CDM (MPC52xx_MBAR + 0x0200)
-#define MPC52xx_SFTRST (MPC52xx_MBAR + 0x0220)
-#define MPC52xx_SFTRST_BIT 0x01000000
-#define MPC52xx_INTR (MPC52xx_MBAR + 0x0500)
-#define MPC52xx_GPTx(x) (MPC52xx_MBAR + 0x0600 + ((x)<<4))
-#define MPC52xx_RTC (MPC52xx_MBAR + 0x0800)
-#define MPC52xx_MSCAN1 (MPC52xx_MBAR + 0x0900)
-#define MPC52xx_MSCAN2 (MPC52xx_MBAR + 0x0980)
-#define MPC52xx_GPIO (MPC52xx_MBAR + 0x0b00)
-#define MPC52xx_PCI (MPC52xx_MBAR + 0x0d00)
-#define MPC52xx_USB_OHCI (MPC52xx_MBAR + 0x1000)
-#define MPC52xx_SDMA (MPC52xx_MBAR + 0x1200)
-#define MPC52xx_XLB (MPC52xx_MBAR + 0x1f00)
-#define MPC52xx_PSCx(x) (MPC52xx_MBAR + 0x2000 + ((x)<<9))
-#define MPC52xx_PSC1 (MPC52xx_MBAR + 0x2000)
-#define MPC52xx_PSC2 (MPC52xx_MBAR + 0x2200)
-#define MPC52xx_PSC3 (MPC52xx_MBAR + 0x2400)
-#define MPC52xx_PSC4 (MPC52xx_MBAR + 0x2600)
-#define MPC52xx_PSC5 (MPC52xx_MBAR + 0x2800)
-#define MPC52xx_PSC6 (MPC52xx_MBAR + 0x2C00)
-#define MPC52xx_FEC (MPC52xx_MBAR + 0x3000)
-#define MPC52xx_ATA (MPC52xx_MBAR + 0x3a00)
-#define MPC52xx_I2C1 (MPC52xx_MBAR + 0x3d00)
-#define MPC52xx_I2C_MICR (MPC52xx_MBAR + 0x3d20)
-#define MPC52xx_I2C2 (MPC52xx_MBAR + 0x3d40)
-
-/* SRAM used for SDMA */
-#define MPC52xx_SRAM (MPC52xx_MBAR + 0x8000)
-#define MPC52xx_SRAM_SIZE (16*1024)
-#define MPC52xx_SDMA_MAX_TASKS 16
-
- /* Memory allocation block size */
-#define MPC52xx_SDRAM_UNIT 0x8000 /* 32K byte */
-
-
-/* ======================================================================== */
-/* IRQ mapping */
-/* ======================================================================== */
-/* Be sure to look at mpc52xx_pic.h if you wish for whatever reason to change
- * this
- */
-
-#define MPC52xx_CRIT_IRQ_NUM 4
-#define MPC52xx_MAIN_IRQ_NUM 17
-#define MPC52xx_SDMA_IRQ_NUM 17
-#define MPC52xx_PERP_IRQ_NUM 23
-
-#define MPC52xx_CRIT_IRQ_BASE 0
-#define MPC52xx_MAIN_IRQ_BASE (MPC52xx_CRIT_IRQ_BASE + MPC52xx_CRIT_IRQ_NUM)
-#define MPC52xx_SDMA_IRQ_BASE (MPC52xx_MAIN_IRQ_BASE + MPC52xx_MAIN_IRQ_NUM)
-#define MPC52xx_PERP_IRQ_BASE (MPC52xx_SDMA_IRQ_BASE + MPC52xx_SDMA_IRQ_NUM)
-
-#define MPC52xx_IRQ0 (MPC52xx_CRIT_IRQ_BASE + 0)
-#define MPC52xx_SLICE_TIMER_0_IRQ (MPC52xx_CRIT_IRQ_BASE + 1)
-#define MPC52xx_HI_INT_IRQ (MPC52xx_CRIT_IRQ_BASE + 2)
-#define MPC52xx_CCS_IRQ (MPC52xx_CRIT_IRQ_BASE + 3)
-
-#define MPC52xx_IRQ1 (MPC52xx_MAIN_IRQ_BASE + 1)
-#define MPC52xx_IRQ2 (MPC52xx_MAIN_IRQ_BASE + 2)
-#define MPC52xx_IRQ3 (MPC52xx_MAIN_IRQ_BASE + 3)
-
-#define MPC52xx_SDMA_IRQ (MPC52xx_PERP_IRQ_BASE + 0)
-#define MPC52xx_PSC1_IRQ (MPC52xx_PERP_IRQ_BASE + 1)
-#define MPC52xx_PSC2_IRQ (MPC52xx_PERP_IRQ_BASE + 2)
-#define MPC52xx_PSC3_IRQ (MPC52xx_PERP_IRQ_BASE + 3)
-#define MPC52xx_PSC6_IRQ (MPC52xx_PERP_IRQ_BASE + 4)
-#define MPC52xx_IRDA_IRQ (MPC52xx_PERP_IRQ_BASE + 4)
-#define MPC52xx_FEC_IRQ (MPC52xx_PERP_IRQ_BASE + 5)
-#define MPC52xx_USB_IRQ (MPC52xx_PERP_IRQ_BASE + 6)
-#define MPC52xx_ATA_IRQ (MPC52xx_PERP_IRQ_BASE + 7)
-#define MPC52xx_PCI_CNTRL_IRQ (MPC52xx_PERP_IRQ_BASE + 8)
-#define MPC52xx_PCI_SCIRX_IRQ (MPC52xx_PERP_IRQ_BASE + 9)
-#define MPC52xx_PCI_SCITX_IRQ (MPC52xx_PERP_IRQ_BASE + 10)
-#define MPC52xx_PSC4_IRQ (MPC52xx_PERP_IRQ_BASE + 11)
-#define MPC52xx_PSC5_IRQ (MPC52xx_PERP_IRQ_BASE + 12)
-#define MPC52xx_SPI_MODF_IRQ (MPC52xx_PERP_IRQ_BASE + 13)
-#define MPC52xx_SPI_SPIF_IRQ (MPC52xx_PERP_IRQ_BASE + 14)
-#define MPC52xx_I2C1_IRQ (MPC52xx_PERP_IRQ_BASE + 15)
-#define MPC52xx_I2C2_IRQ (MPC52xx_PERP_IRQ_BASE + 16)
-#define MPC52xx_CAN1_IRQ (MPC52xx_PERP_IRQ_BASE + 17)
-#define MPC52xx_CAN2_IRQ (MPC52xx_PERP_IRQ_BASE + 18)
-#define MPC52xx_IR_RX_IRQ (MPC52xx_PERP_IRQ_BASE + 19)
-#define MPC52xx_IR_TX_IRQ (MPC52xx_PERP_IRQ_BASE + 20)
-#define MPC52xx_XLB_ARB_IRQ (MPC52xx_PERP_IRQ_BASE + 21)
-
-
-
-/* ======================================================================== */
-/* Structures mapping of some unit register set */
-/* ======================================================================== */
-
-#ifndef __ASSEMBLY__
-
-/* Memory Mapping Control */
-struct mpc52xx_mmap_ctl {
- volatile u32 mbar; /* MMAP_CTRL + 0x00 */
-
- volatile u32 cs0_start; /* MMAP_CTRL + 0x04 */
- volatile u32 cs0_stop; /* MMAP_CTRL + 0x08 */
- volatile u32 cs1_start; /* MMAP_CTRL + 0x0c */
- volatile u32 cs1_stop; /* MMAP_CTRL + 0x10 */
- volatile u32 cs2_start; /* MMAP_CTRL + 0x14 */
- volatile u32 cs2_stop; /* MMAP_CTRL + 0x18 */
- volatile u32 cs3_start; /* MMAP_CTRL + 0x1c */
- volatile u32 cs3_stop; /* MMAP_CTRL + 0x20 */
- volatile u32 cs4_start; /* MMAP_CTRL + 0x24 */
- volatile u32 cs4_stop; /* MMAP_CTRL + 0x28 */
- volatile u32 cs5_start; /* MMAP_CTRL + 0x2c */
- volatile u32 cs5_stop; /* MMAP_CTRL + 0x30 */
-
- volatile u32 sdram0; /* MMAP_CTRL + 0x34 */
- volatile u32 sdram1; /* MMAP_CTRL + 0X38 */
-
- volatile u32 reserved[4]; /* MMAP_CTRL + 0x3c .. 0x48 */
-
- volatile u32 boot_start; /* MMAP_CTRL + 0x4c */
- volatile u32 boot_stop; /* MMAP_CTRL + 0x50 */
-
- volatile u32 ipbi_ws_ctrl; /* MMAP_CTRL + 0x54 */
-
- volatile u32 cs6_start; /* MMAP_CTRL + 0x58 */
- volatile u32 cs6_stop; /* MMAP_CTRL + 0x5c */
- volatile u32 cs7_start; /* MMAP_CTRL + 0x60 */
- volatile u32 cs7_stop; /* MMAP_CTRL + 0x60 */
-};
-
-/* Interrupt controller */
-struct mpc52xx_intr {
- volatile u32 per_mask; /* INTR + 0x00 */
- volatile u32 per_pri1; /* INTR + 0x04 */
- volatile u32 per_pri2; /* INTR + 0x08 */
- volatile u32 per_pri3; /* INTR + 0x0c */
- volatile u32 ctrl; /* INTR + 0x10 */
- volatile u32 main_mask; /* INTR + 0x14 */
- volatile u32 main_pri1; /* INTR + 0x18 */
- volatile u32 main_pri2; /* INTR + 0x1c */
- volatile u32 reserved1; /* INTR + 0x20 */
- volatile u32 enc_status; /* INTR + 0x24 */
- volatile u32 crit_status; /* INTR + 0x28 */
- volatile u32 main_status; /* INTR + 0x2c */
- volatile u32 per_status; /* INTR + 0x30 */
- volatile u32 reserved2; /* INTR + 0x34 */
- volatile u32 per_error; /* INTR + 0x38 */
-};
-
-/* SDMA */
-struct mpc52xx_sdma {
- volatile u32 taskBar; /* SDMA + 0x00 */
- volatile u32 currentPointer; /* SDMA + 0x04 */
- volatile u32 endPointer; /* SDMA + 0x08 */
- volatile u32 variablePointer;/* SDMA + 0x0c */
-
- volatile u8 IntVect1; /* SDMA + 0x10 */
- volatile u8 IntVect2; /* SDMA + 0x11 */
- volatile u16 PtdCntrl; /* SDMA + 0x12 */
-
- volatile u32 IntPend; /* SDMA + 0x14 */
- volatile u32 IntMask; /* SDMA + 0x18 */
-
- volatile u16 tcr[16]; /* SDMA + 0x1c .. 0x3a */
-
- volatile u8 ipr[31]; /* SDMA + 0x3c .. 5b */
-
- volatile u32 res1; /* SDMA + 0x5c */
- volatile u32 task_size0; /* SDMA + 0x60 */
- volatile u32 task_size1; /* SDMA + 0x64 */
- volatile u32 MDEDebug; /* SDMA + 0x68 */
- volatile u32 ADSDebug; /* SDMA + 0x6c */
- volatile u32 Value1; /* SDMA + 0x70 */
- volatile u32 Value2; /* SDMA + 0x74 */
- volatile u32 Control; /* SDMA + 0x78 */
- volatile u32 Status; /* SDMA + 0x7c */
-};
-
-/* GPT */
-struct mpc52xx_gpt {
- volatile u32 mode; /* GPTx + 0x00 */
- volatile u32 count; /* GPTx + 0x04 */
- volatile u32 pwm; /* GPTx + 0x08 */
- volatile u32 status; /* GPTx + 0X0c */
-};
-
-/* RTC */
-struct mpc52xx_rtc {
- volatile u32 time_set; /* RTC + 0x00 */
- volatile u32 date_set; /* RTC + 0x04 */
- volatile u32 stopwatch; /* RTC + 0x08 */
- volatile u32 int_enable; /* RTC + 0x0c */
- volatile u32 time; /* RTC + 0x10 */
- volatile u32 date; /* RTC + 0x14 */
- volatile u32 stopwatch_intr; /* RTC + 0x18 */
- volatile u32 bus_error; /* RTC + 0x1c */
- volatile u32 dividers; /* RTC + 0x20 */
-};
-
-/* GPIO */
-struct mpc52xx_gpio {
- volatile u32 port_config; /* GPIO + 0x00 */
- volatile u32 simple_gpioe; /* GPIO + 0x04 */
- volatile u32 simple_ode; /* GPIO + 0x08 */
- volatile u32 simple_ddr; /* GPIO + 0x0c */
- volatile u32 simple_dvo; /* GPIO + 0x10 */
- volatile u32 simple_ival; /* GPIO + 0x14 */
- volatile u8 outo_gpioe; /* GPIO + 0x18 */
- volatile u8 reserved1[3]; /* GPIO + 0x19 */
- volatile u8 outo_dvo; /* GPIO + 0x1c */
- volatile u8 reserved2[3]; /* GPIO + 0x1d */
- volatile u8 sint_gpioe; /* GPIO + 0x20 */
- volatile u8 reserved3[3]; /* GPIO + 0x21 */
- volatile u8 sint_ode; /* GPIO + 0x24 */
- volatile u8 reserved4[3]; /* GPIO + 0x25 */
- volatile u8 sint_ddr; /* GPIO + 0x28 */
- volatile u8 reserved5[3]; /* GPIO + 0x29 */
- volatile u8 sint_dvo; /* GPIO + 0x2c */
- volatile u8 reserved6[3]; /* GPIO + 0x2d */
- volatile u8 sint_inten; /* GPIO + 0x30 */
- volatile u8 reserved7[3]; /* GPIO + 0x31 */
- volatile u16 sint_itype; /* GPIO + 0x34 */
- volatile u16 reserved8; /* GPIO + 0x36 */
- volatile u8 gpio_control; /* GPIO + 0x38 */
- volatile u8 reserved9[3]; /* GPIO + 0x39 */
- volatile u8 sint_istat; /* GPIO + 0x3c */
- volatile u8 sint_ival; /* GPIO + 0x3d */
- volatile u8 bus_errs; /* GPIO + 0x3e */
- volatile u8 reserved10; /* GPIO + 0x3f */
-};
-
-#define MPC52xx_GPIO_PSC_CONFIG_UART_WITHOUT_CD 4
-#define MPC52xx_GPIO_PSC_CONFIG_UART_WITH_CD 5
-#define MPC52xx_GPIO_PCI_DIS (1<<15)
-
-/* XLB Bus control */
-struct mpc52xx_xlb {
- volatile u8 reserved[0x40];
- volatile u32 config; /* XLB + 0x40 */
- volatile u32 version; /* XLB + 0x44 */
- volatile u32 status; /* XLB + 0x48 */
- volatile u32 int_enable; /* XLB + 0x4c */
- volatile u32 addr_capture; /* XLB + 0x50 */
- volatile u32 bus_sig_capture; /* XLB + 0x54 */
- volatile u32 addr_timeout; /* XLB + 0x58 */
- volatile u32 data_timeout; /* XLB + 0x5c */
- volatile u32 bus_act_timeout; /* XLB + 0x60 */
- volatile u32 master_pri_enable; /* XLB + 0x64 */
- volatile u32 master_priority; /* XLB + 0x68 */
- volatile u32 base_address; /* XLB + 0x6c */
- volatile u32 snoop_window; /* XLB + 0x70 */
-};
-
-
-/* Clock Distribution control */
-struct mpc52xx_cdm {
- volatile u32 jtag_id; /* MBAR_CDM + 0x00 reg0 read only */
- volatile u32 rstcfg; /* MBAR_CDM + 0x04 reg1 read only */
- volatile u32 breadcrumb; /* MBAR_CDM + 0x08 reg2 */
-
- volatile u8 mem_clk_sel; /* MBAR_CDM + 0x0c reg3 byte0 */
- volatile u8 xlb_clk_sel; /* MBAR_CDM + 0x0d reg3 byte1 read only */
- volatile u8 ipb_clk_sel; /* MBAR_CDM + 0x0e reg3 byte2 */
- volatile u8 pci_clk_sel; /* MBAR_CDM + 0x0f reg3 byte3 */
-
- volatile u8 ext_48mhz_en; /* MBAR_CDM + 0x10 reg4 byte0 */
- volatile u8 fd_enable; /* MBAR_CDM + 0x11 reg4 byte1 */
- volatile u16 fd_counters; /* MBAR_CDM + 0x12 reg4 byte2,3 */
-
- volatile u32 clk_enables; /* MBAR_CDM + 0x14 reg5 */
-
- volatile u8 osc_disable; /* MBAR_CDM + 0x18 reg6 byte0 */
- volatile u8 reserved0[3]; /* MBAR_CDM + 0x19 reg6 byte1,2,3 */
-
- volatile u8 ccs_sleep_enable;/* MBAR_CDM + 0x1c reg7 byte0 */
- volatile u8 osc_sleep_enable;/* MBAR_CDM + 0x1d reg7 byte1 */
- volatile u8 reserved1; /* MBAR_CDM + 0x1e reg7 byte2 */
- volatile u8 ccs_qreq_test; /* MBAR_CDM + 0x1f reg7 byte3 */
-
- volatile u8 soft_reset; /* MBAR_CDM + 0x20 u8 byte0 */
- volatile u8 no_ckstp; /* MBAR_CDM + 0x21 u8 byte0 */
- volatile u8 reserved2[2]; /* MBAR_CDM + 0x22 u8 byte1,2,3 */
-
- volatile u8 pll_lock; /* MBAR_CDM + 0x24 reg9 byte0 */
- volatile u8 pll_looselock; /* MBAR_CDM + 0x25 reg9 byte1 */
- volatile u8 pll_sm_lockwin; /* MBAR_CDM + 0x26 reg9 byte2 */
- volatile u8 reserved3; /* MBAR_CDM + 0x27 reg9 byte3 */
-
- volatile u16 reserved4; /* MBAR_CDM + 0x28 reg10 byte0,1 */
- volatile u16 mclken_div_psc1;/* MBAR_CDM + 0x2a reg10 byte2,3 */
-
- volatile u16 reserved5; /* MBAR_CDM + 0x2c reg11 byte0,1 */
- volatile u16 mclken_div_psc2;/* MBAR_CDM + 0x2e reg11 byte2,3 */
-
- volatile u16 reserved6; /* MBAR_CDM + 0x30 reg12 byte0,1 */
- volatile u16 mclken_div_psc3;/* MBAR_CDM + 0x32 reg12 byte2,3 */
-
- volatile u16 reserved7; /* MBAR_CDM + 0x34 reg13 byte0,1 */
- volatile u16 mclken_div_psc6;/* MBAR_CDM + 0x36 reg13 byte2,3 */
-};
-
-#endif /* __ASSEMBLY__ */
-
-
-/* ========================================================================= */
-/* Prototypes for MPC52xx syslib */
-/* ========================================================================= */
-
-#ifndef __ASSEMBLY__
-
-extern void mpc52xx_init_irq(void);
-extern int mpc52xx_get_irq(struct pt_regs *regs);
-
-extern unsigned long mpc52xx_find_end_of_memory(void);
-extern void mpc52xx_set_bat(void);
-extern void mpc52xx_map_io(void);
-extern void mpc52xx_restart(char *cmd);
-extern void mpc52xx_halt(void);
-extern void mpc52xx_power_off(void);
-extern void mpc52xx_progress(char *s, unsigned short hex);
-extern void mpc52xx_calibrate_decr(void);
-extern void mpc52xx_add_board_devices(struct ocp_def board_ocp[]);
-
-#endif /* __ASSEMBLY__ */
-
-
-/* ========================================================================= */
-/* Platform configuration */
-/* ========================================================================= */
-
-/* The U-Boot platform information struct */
-extern bd_t __res;
-
-/* Platform options */
-#if defined(CONFIG_LITE5200)
-#include <platforms/lite5200.h>
-#endif
-
-
-#endif /* __ASM_MPC52xx_H__ */
+++ /dev/null
-/*
- * include/asm-ppc/mpc52xx_psc.h
- *
- * Definitions of consts/structs to drive the Freescale MPC52xx OnChip
- * PSCs. Theses are shared between multiple drivers since a PSC can be
- * UART, AC97, IR, I2S, ... So this header is in asm-ppc.
- *
- *
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Based/Extracted from some header of the 2.4 originally written by
- * Dale Farnsworth <dfarnsworth@mvista.com>
- *
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 MontaVista, Software, Inc.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#ifndef __MPC52xx_PSC_H__
-#define __MPC52xx_PSC_H__
-
-#include <asm/types.h>
-
-/* Max number of PSCs */
-#define MPC52xx_PSC_MAXNUM 6
-
-/* Programmable Serial Controller (PSC) status register bits */
-#define MPC52xx_PSC_SR_CDE 0x0080
-#define MPC52xx_PSC_SR_RXRDY 0x0100
-#define MPC52xx_PSC_SR_RXFULL 0x0200
-#define MPC52xx_PSC_SR_TXRDY 0x0400
-#define MPC52xx_PSC_SR_TXEMP 0x0800
-#define MPC52xx_PSC_SR_OE 0x1000
-#define MPC52xx_PSC_SR_PE 0x2000
-#define MPC52xx_PSC_SR_FE 0x4000
-#define MPC52xx_PSC_SR_RB 0x8000
-
-/* PSC Command values */
-#define MPC52xx_PSC_RX_ENABLE 0x0001
-#define MPC52xx_PSC_RX_DISABLE 0x0002
-#define MPC52xx_PSC_TX_ENABLE 0x0004
-#define MPC52xx_PSC_TX_DISABLE 0x0008
-#define MPC52xx_PSC_SEL_MODE_REG_1 0x0010
-#define MPC52xx_PSC_RST_RX 0x0020
-#define MPC52xx_PSC_RST_TX 0x0030
-#define MPC52xx_PSC_RST_ERR_STAT 0x0040
-#define MPC52xx_PSC_RST_BRK_CHG_INT 0x0050
-#define MPC52xx_PSC_START_BRK 0x0060
-#define MPC52xx_PSC_STOP_BRK 0x0070
-
-/* PSC TxRx FIFO status bits */
-#define MPC52xx_PSC_RXTX_FIFO_ERR 0x0040
-#define MPC52xx_PSC_RXTX_FIFO_UF 0x0020
-#define MPC52xx_PSC_RXTX_FIFO_OF 0x0010
-#define MPC52xx_PSC_RXTX_FIFO_FR 0x0008
-#define MPC52xx_PSC_RXTX_FIFO_FULL 0x0004
-#define MPC52xx_PSC_RXTX_FIFO_ALARM 0x0002
-#define MPC52xx_PSC_RXTX_FIFO_EMPTY 0x0001
-
-/* PSC interrupt mask bits */
-#define MPC52xx_PSC_IMR_TXRDY 0x0100
-#define MPC52xx_PSC_IMR_RXRDY 0x0200
-#define MPC52xx_PSC_IMR_DB 0x0400
-#define MPC52xx_PSC_IMR_IPC 0x8000
-
-/* PSC input port change bit */
-#define MPC52xx_PSC_CTS 0x01
-#define MPC52xx_PSC_DCD 0x02
-#define MPC52xx_PSC_D_CTS 0x10
-#define MPC52xx_PSC_D_DCD 0x20
-
-/* PSC mode fields */
-#define MPC52xx_PSC_MODE_5_BITS 0x00
-#define MPC52xx_PSC_MODE_6_BITS 0x01
-#define MPC52xx_PSC_MODE_7_BITS 0x02
-#define MPC52xx_PSC_MODE_8_BITS 0x03
-#define MPC52xx_PSC_MODE_BITS_MASK 0x03
-#define MPC52xx_PSC_MODE_PAREVEN 0x00
-#define MPC52xx_PSC_MODE_PARODD 0x04
-#define MPC52xx_PSC_MODE_PARFORCE 0x08
-#define MPC52xx_PSC_MODE_PARNONE 0x10
-#define MPC52xx_PSC_MODE_ERR 0x20
-#define MPC52xx_PSC_MODE_FFULL 0x40
-#define MPC52xx_PSC_MODE_RXRTS 0x80
-
-#define MPC52xx_PSC_MODE_ONE_STOP_5_BITS 0x00
-#define MPC52xx_PSC_MODE_ONE_STOP 0x07
-#define MPC52xx_PSC_MODE_TWO_STOP 0x0f
-
-#define MPC52xx_PSC_RFNUM_MASK 0x01ff
-
-
-/* Structure of the hardware registers */
-struct mpc52xx_psc {
- volatile u8 mode; /* PSC + 0x00 */
- volatile u8 reserved0[3];
- union { /* PSC + 0x04 */
- volatile u16 status;
- volatile u16 clock_select;
- } sr_csr;
-#define mpc52xx_psc_status sr_csr.status
-#define mpc52xx_psc_clock_select sr_csr.clock_select
- volatile u16 reserved1;
- volatile u8 command; /* PSC + 0x08 */
-volatile u8 reserved2[3];
- union { /* PSC + 0x0c */
- volatile u8 buffer_8;
- volatile u16 buffer_16;
- volatile u32 buffer_32;
- } buffer;
-#define mpc52xx_psc_buffer_8 buffer.buffer_8
-#define mpc52xx_psc_buffer_16 buffer.buffer_16
-#define mpc52xx_psc_buffer_32 buffer.buffer_32
- union { /* PSC + 0x10 */
- volatile u8 ipcr;
- volatile u8 acr;
- } ipcr_acr;
-#define mpc52xx_psc_ipcr ipcr_acr.ipcr
-#define mpc52xx_psc_acr ipcr_acr.acr
- volatile u8 reserved3[3];
- union { /* PSC + 0x14 */
- volatile u16 isr;
- volatile u16 imr;
- } isr_imr;
-#define mpc52xx_psc_isr isr_imr.isr
-#define mpc52xx_psc_imr isr_imr.imr
- volatile u16 reserved4;
- volatile u8 ctur; /* PSC + 0x18 */
- volatile u8 reserved5[3];
- volatile u8 ctlr; /* PSC + 0x1c */
- volatile u8 reserved6[3];
- volatile u16 ccr; /* PSC + 0x20 */
- volatile u8 reserved7[14];
- volatile u8 ivr; /* PSC + 0x30 */
- volatile u8 reserved8[3];
- volatile u8 ip; /* PSC + 0x34 */
- volatile u8 reserved9[3];
- volatile u8 op1; /* PSC + 0x38 */
- volatile u8 reserved10[3];
- volatile u8 op0; /* PSC + 0x3c */
- volatile u8 reserved11[3];
- volatile u32 sicr; /* PSC + 0x40 */
- volatile u8 ircr1; /* PSC + 0x44 */
- volatile u8 reserved13[3];
- volatile u8 ircr2; /* PSC + 0x44 */
- volatile u8 reserved14[3];
- volatile u8 irsdr; /* PSC + 0x4c */
- volatile u8 reserved15[3];
- volatile u8 irmdr; /* PSC + 0x50 */
- volatile u8 reserved16[3];
- volatile u8 irfdr; /* PSC + 0x54 */
- volatile u8 reserved17[3];
- volatile u16 rfnum; /* PSC + 0x58 */
- volatile u16 reserved18;
- volatile u16 tfnum; /* PSC + 0x5c */
- volatile u16 reserved19;
- volatile u32 rfdata; /* PSC + 0x60 */
- volatile u16 rfstat; /* PSC + 0x64 */
- volatile u16 reserved20;
- volatile u8 rfcntl; /* PSC + 0x68 */
- volatile u8 reserved21[5];
- volatile u16 rfalarm; /* PSC + 0x6e */
- volatile u16 reserved22;
- volatile u16 rfrptr; /* PSC + 0x72 */
- volatile u16 reserved23;
- volatile u16 rfwptr; /* PSC + 0x76 */
- volatile u16 reserved24;
- volatile u16 rflrfptr; /* PSC + 0x7a */
- volatile u16 reserved25;
- volatile u16 rflwfptr; /* PSC + 0x7e */
- volatile u32 tfdata; /* PSC + 0x80 */
- volatile u16 tfstat; /* PSC + 0x84 */
- volatile u16 reserved26;
- volatile u8 tfcntl; /* PSC + 0x88 */
- volatile u8 reserved27[5];
- volatile u16 tfalarm; /* PSC + 0x8e */
- volatile u16 reserved28;
- volatile u16 tfrptr; /* PSC + 0x92 */
- volatile u16 reserved29;
- volatile u16 tfwptr; /* PSC + 0x96 */
- volatile u16 reserved30;
- volatile u16 tflrfptr; /* PSC + 0x9a */
- volatile u16 reserved31;
- volatile u16 tflwfptr; /* PSC + 0x9e */
-};
-
-
-#endif /* __MPC52xx_PSC_H__ */
+++ /dev/null
-/* include/asm-ppc/mpc8260_pci9.h
- *
- * Undefine the PCI read* and in* macros so we can define them as functions
- * that implement the workaround for the MPC8260 device erratum PCI 9.
- *
- * This header file should only be included at the end of include/asm-ppc/io.h
- * and never included directly anywhere else.
- *
- * Author: andy_lowe@mvista.com
- *
- * 2003 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-#ifndef _PPC_IO_H
-#error "Do not include mpc8260_pci9.h directly."
-#endif
-
-#ifdef __KERNEL__
-#ifndef __CONFIG_8260_PCI9_DEFS
-#define __CONFIG_8260_PCI9_DEFS
-
-#undef readb
-#undef readw
-#undef readl
-#undef insb
-#undef insw
-#undef insl
-#undef inb
-#undef inw
-#undef inl
-#undef insw_ns
-#undef insl_ns
-#undef memcpy_fromio
-
-extern int readb(volatile unsigned char *addr);
-extern int readw(volatile unsigned short *addr);
-extern unsigned readl(volatile unsigned *addr);
-extern void insb(unsigned port, void *buf, int ns);
-extern void insw(unsigned port, void *buf, int ns);
-extern void insl(unsigned port, void *buf, int nl);
-extern int inb(unsigned port);
-extern int inw(unsigned port);
-extern unsigned inl(unsigned port);
-extern void insw_ns(unsigned port, void *buf, int ns);
-extern void insl_ns(unsigned port, void *buf, int nl);
-extern void *memcpy_fromio(void *dest, unsigned long src, size_t count);
-
-#endif /* !__CONFIG_8260_PCI9_DEFS */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * include/asm-ppc/mpc85xx.h
- *
- * MPC85xx definitions
- *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
- *
- * Copyright 2004 Freescale Semiconductor, Inc
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifdef __KERNEL__
-#ifndef __ASM_MPC85xx_H__
-#define __ASM_MPC85xx_H__
-
-#include <linux/config.h>
-#include <asm/mmu.h>
-
-#ifdef CONFIG_85xx
-
-#ifdef CONFIG_MPC8540_ADS
-#include <platforms/85xx/mpc8540_ads.h>
-#endif
-
-#define _IO_BASE isa_io_base
-#define _ISA_MEM_BASE isa_mem_base
-#define PCI_DRAM_OFFSET pci_dram_offset
-
-/*
- * The "residual" board information structure the boot loader passes
- * into the kernel.
- */
-extern unsigned char __res[];
-
-/* Internal IRQs on MPC85xx OpenPIC */
-/* Not all of these exist on all MPC85xx implementations */
-
-#ifndef MPC85xx_OPENPIC_IRQ_OFFSET
-#define MPC85xx_OPENPIC_IRQ_OFFSET 64
-#endif
-
-/* The 32 internal sources */
-#define MPC85xx_IRQ_L2CACHE ( 0 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_ECM ( 1 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_DDR ( 2 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_LBIU ( 3 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_DMA0 ( 4 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_DMA1 ( 5 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_DMA2 ( 6 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_DMA3 ( 7 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_PCI1 ( 8 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_PCI2 ( 9 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_RIO_ERROR ( 9 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_RIO_BELL (10 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_RIO_TX (11 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_RIO_RX (12 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_TSEC1_TX (13 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_TSEC1_RX (14 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_TSEC1_ERROR (18 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_TSEC2_TX (19 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_TSEC2_RX (20 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_TSEC2_ERROR (24 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_FEC (25 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_DUART (26 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_IIC1 (27 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_PERFMON (28 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_CPM (30 + MPC85xx_OPENPIC_IRQ_OFFSET)
-
-/* The 12 external interrupt lines */
-#define MPC85xx_IRQ_EXT0 (32 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT1 (33 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT2 (34 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT3 (35 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT4 (36 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT5 (37 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT6 (38 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT7 (39 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT8 (40 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT9 (41 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT10 (42 + MPC85xx_OPENPIC_IRQ_OFFSET)
-#define MPC85xx_IRQ_EXT11 (43 + MPC85xx_OPENPIC_IRQ_OFFSET)
-
-/* Offset from CCSRBAR */
-#define MPC85xx_CPM_OFFSET (0x80000)
-#define MPC85xx_CPM_SIZE (0x40000)
-#define MPC85xx_DMA_OFFSET (0x21000)
-#define MPC85xx_DMA_SIZE (0x01000)
-#define MPC85xx_ENET1_OFFSET (0x24000)
-#define MPC85xx_ENET1_SIZE (0x01000)
-#define MPC85xx_ENET2_OFFSET (0x25000)
-#define MPC85xx_ENET2_SIZE (0x01000)
-#define MPC85xx_ENET3_OFFSET (0x26000)
-#define MPC85xx_ENET3_SIZE (0x01000)
-#define MPC85xx_GUTS_OFFSET (0xe0000)
-#define MPC85xx_GUTS_SIZE (0x01000)
-#define MPC85xx_IIC1_OFFSET (0x03000)
-#define MPC85xx_IIC1_SIZE (0x01000)
-#define MPC85xx_OPENPIC_OFFSET (0x40000)
-#define MPC85xx_OPENPIC_SIZE (0x40000)
-#define MPC85xx_PCI1_OFFSET (0x08000)
-#define MPC85xx_PCI1_SIZE (0x01000)
-#define MPC85xx_PCI2_OFFSET (0x09000)
-#define MPC85xx_PCI2_SIZE (0x01000)
-#define MPC85xx_PERFMON_OFFSET (0xe1000)
-#define MPC85xx_PERFMON_SIZE (0x01000)
-#define MPC85xx_UART0_OFFSET (0x04500)
-#define MPC85xx_UART0_SIZE (0x00100)
-#define MPC85xx_UART1_OFFSET (0x04600)
-#define MPC85xx_UART1_SIZE (0x00100)
-
-#define MPC85xx_CCSRBAR_SIZE (1024*1024)
-
-/* Let modules/drivers get at CCSRBAR */
-extern phys_addr_t get_ccsrbar(void);
-
-#ifdef MODULE
-#define CCSRBAR get_ccsrbar()
-#else
-#define CCSRBAR BOARD_CCSRBAR
-#endif
-
-#endif /* CONFIG_85xx */
-#endif /* __ASM_MPC85xx_H__ */
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * include/asm-ppc/ppc4xx_dma.h
- *
- * IBM PPC4xx DMA engine library
- *
- * Copyright 2000-2004 MontaVista Software Inc.
- *
- * Cleaned up a bit more, Matt Porter <mporter@kernel.crashing.org>
- *
- * Original code by Armin Kuster <akuster@mvista.com>
- * and Pete Popov <ppopov@mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifdef __KERNEL__
-#ifndef __ASMPPC_PPC4xx_DMA_H
-#define __ASMPPC_PPC4xx_DMA_H
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <asm/mmu.h>
-#include <asm/ibm4xx.h>
-
-#undef DEBUG_4xxDMA
-
-#define MAX_PPC4xx_DMA_CHANNELS 4
-
-/* in arch/ppc/kernel/setup.c -- Cort */
-extern unsigned long DMA_MODE_WRITE, DMA_MODE_READ;
-
-/*
- * Function return status codes
- * These values are used to indicate whether or not the function
- * call was successful, or a bad/invalid parameter was passed.
- */
-#define DMA_STATUS_GOOD 0
-#define DMA_STATUS_BAD_CHANNEL 1
-#define DMA_STATUS_BAD_HANDLE 2
-#define DMA_STATUS_BAD_MODE 3
-#define DMA_STATUS_NULL_POINTER 4
-#define DMA_STATUS_OUT_OF_MEMORY 5
-#define DMA_STATUS_SGL_LIST_EMPTY 6
-#define DMA_STATUS_GENERAL_ERROR 7
-#define DMA_STATUS_CHANNEL_NOTFREE 8
-
-#define DMA_CHANNEL_BUSY 0x80000000
-
-/*
- * These indicate status as returned from the DMA Status Register.
- */
-#define DMA_STATUS_NO_ERROR 0
-#define DMA_STATUS_CS 1 /* Count Status */
-#define DMA_STATUS_TS 2 /* Transfer Status */
-#define DMA_STATUS_DMA_ERROR 3 /* DMA Error Occurred */
-#define DMA_STATUS_DMA_BUSY 4 /* The channel is busy */
-
-
-/*
- * DMA Channel Control Registers
- */
-
-#ifdef CONFIG_44x
-#define PPC4xx_DMA_64BIT
-#define DMA_CR_OFFSET 1
-#else
-#define DMA_CR_OFFSET 0
-#endif
-
-#define DMA_CE_ENABLE (1<<31) /* DMA Channel Enable */
-#define SET_DMA_CE_ENABLE(x) (((x)&0x1)<<31)
-#define GET_DMA_CE_ENABLE(x) (((x)&DMA_CE_ENABLE)>>31)
-
-#define DMA_CIE_ENABLE (1<<30) /* DMA Channel Interrupt Enable */
-#define SET_DMA_CIE_ENABLE(x) (((x)&0x1)<<30)
-#define GET_DMA_CIE_ENABLE(x) (((x)&DMA_CIE_ENABLE)>>30)
-
-#define DMA_TD (1<<29)
-#define SET_DMA_TD(x) (((x)&0x1)<<29)
-#define GET_DMA_TD(x) (((x)&DMA_TD)>>29)
-
-#define DMA_PL (1<<28) /* Peripheral Location */
-#define SET_DMA_PL(x) (((x)&0x1)<<28)
-#define GET_DMA_PL(x) (((x)&DMA_PL)>>28)
-
-#define EXTERNAL_PERIPHERAL 0
-#define INTERNAL_PERIPHERAL 1
-
-#define SET_DMA_PW(x) (((x)&0x3)<<(26-DMA_CR_OFFSET)) /* Peripheral Width */
-#define DMA_PW_MASK SET_DMA_PW(3)
-#define PW_8 0
-#define PW_16 1
-#define PW_32 2
-#define PW_64 3
-/* FIXME: Add PW_128 support for 440GP DMA block */
-#define GET_DMA_PW(x) (((x)&DMA_PW_MASK)>>(26-DMA_CR_OFFSET))
-
-#define DMA_DAI (1<<(25-DMA_CR_OFFSET)) /* Destination Address Increment */
-#define SET_DMA_DAI(x) (((x)&0x1)<<(25-DMA_CR_OFFSET))
-
-#define DMA_SAI (1<<(24-DMA_CR_OFFSET)) /* Source Address Increment */
-#define SET_DMA_SAI(x) (((x)&0x1)<<(24-DMA_CR_OFFSET))
-
-#define DMA_BEN (1<<(23-DMA_CR_OFFSET)) /* Buffer Enable */
-#define SET_DMA_BEN(x) (((x)&0x1)<<(23-DMA_CR_OFFSET))
-
-#define SET_DMA_TM(x) (((x)&0x3)<<(21-DMA_CR_OFFSET)) /* Transfer Mode */
-#define DMA_TM_MASK SET_DMA_TM(3)
-#define TM_PERIPHERAL 0 /* Peripheral */
-#define TM_RESERVED 1 /* Reserved */
-#define TM_S_MM 2 /* Memory to Memory */
-#define TM_D_MM 3 /* Device Paced Memory to Memory */
-#define GET_DMA_TM(x) (((x)&DMA_TM_MASK)>>(21-DMA_CR_OFFSET))
-
-#define SET_DMA_PSC(x) (((x)&0x3)<<(19-DMA_CR_OFFSET)) /* Peripheral Setup Cycles */
-#define DMA_PSC_MASK SET_DMA_PSC(3)
-#define GET_DMA_PSC(x) (((x)&DMA_PSC_MASK)>>(19-DMA_CR_OFFSET))
-
-#define SET_DMA_PWC(x) (((x)&0x3F)<<(13-DMA_CR_OFFSET)) /* Peripheral Wait Cycles */
-#define DMA_PWC_MASK SET_DMA_PWC(0x3F)
-#define GET_DMA_PWC(x) (((x)&DMA_PWC_MASK)>>(13-DMA_CR_OFFSET))
-
-#define SET_DMA_PHC(x) (((x)&0x7)<<(10-DMA_CR_OFFSET)) /* Peripheral Hold Cycles */
-#define DMA_PHC_MASK SET_DMA_PHC(0x7)
-#define GET_DMA_PHC(x) (((x)&DMA_PHC_MASK)>>(10-DMA_CR_OFFSET))
-
-#define DMA_ETD_OUTPUT (1<<(9-DMA_CR_OFFSET)) /* EOT pin is a TC output */
-#define SET_DMA_ETD(x) (((x)&0x1)<<(9-DMA_CR_OFFSET))
-
-#define DMA_TCE_ENABLE (1<<(8-DMA_CR_OFFSET))
-#define SET_DMA_TCE(x) (((x)&0x1)<<(8-DMA_CR_OFFSET))
-
-#define DMA_DEC (1<<(2) /* Address Decrement */
-#define SET_DMA_DEC(x) (((x)&0x1)<<2)
-#define GET_DMA_DEC(x) (((x)&DMA_DEC)>>2)
-
-/*
- * Transfer Modes
- * These modes are defined in a way that makes it possible to
- * simply "or" in the value in the control register.
- */
-
-#define DMA_MODE_MM (SET_DMA_TM(TM_S_MM)) /* memory to memory */
-
- /* Device-paced memory to memory, */
- /* device is at source address */
-#define DMA_MODE_MM_DEVATSRC (DMA_TD | SET_DMA_TM(TM_D_MM))
-
- /* Device-paced memory to memory, */
- /* device is at destination address */
-#define DMA_MODE_MM_DEVATDST (SET_DMA_TM(TM_D_MM))
-
-/* 405gp/440gp */
-#define SET_DMA_PREFETCH(x) (((x)&0x3)<<(4-DMA_CR_OFFSET)) /* Memory Read Prefetch */
-#define DMA_PREFETCH_MASK SET_DMA_PREFETCH(3)
-#define PREFETCH_1 0 /* Prefetch 1 Double Word */
-#define PREFETCH_2 1
-#define PREFETCH_4 2
-#define GET_DMA_PREFETCH(x) (((x)&DMA_PREFETCH_MASK)>>(4-DMA_CR_OFFSET))
-
-#define DMA_PCE (1<<(3-DMA_CR_OFFSET)) /* Parity Check Enable */
-#define SET_DMA_PCE(x) (((x)&0x1)<<(3-DMA_CR_OFFSET))
-#define GET_DMA_PCE(x) (((x)&DMA_PCE)>>(3-DMA_CR_OFFSET))
-
-/* stb3x */
-
-#define DMA_ECE_ENABLE (1<<5)
-#define SET_DMA_ECE(x) (((x)&0x1)<<5)
-#define GET_DMA_ECE(x) (((x)&DMA_ECE_ENABLE)>>5)
-
-#define DMA_TCD_DISABLE (1<<4)
-#define SET_DMA_TCD(x) (((x)&0x1)<<4)
-#define GET_DMA_TCD(x) (((x)&DMA_TCD_DISABLE)>>4)
-
-typedef uint32_t sgl_handle_t;
-
-#ifdef CONFIG_PPC4xx_EDMA
-
-#define SGL_LIST_SIZE 4096
-#define DMA_PPC4xx_SIZE SGL_LIST_SIZE
-
-#define SET_DMA_PRIORITY(x) (((x)&0x3)<<(6-DMA_CR_OFFSET)) /* DMA Channel Priority */
-#define DMA_PRIORITY_MASK SET_DMA_PRIORITY(3)
-#define PRIORITY_LOW 0
-#define PRIORITY_MID_LOW 1
-#define PRIORITY_MID_HIGH 2
-#define PRIORITY_HIGH 3
-#define GET_DMA_PRIORITY(x) (((x)&DMA_PRIORITY_MASK)>>(6-DMA_CR_OFFSET))
-
-/*
- * DMA Polarity Configuration Register
- */
-#define DMAReq_ActiveLow(chan) (1<<(31-(chan*3)))
-#define DMAAck_ActiveLow(chan) (1<<(30-(chan*3)))
-#define EOT_ActiveLow(chan) (1<<(29-(chan*3))) /* End of Transfer */
-
-/*
- * DMA Sleep Mode Register
- */
-#define SLEEP_MODE_ENABLE (1<<21)
-
-/*
- * DMA Status Register
- */
-#define DMA_CS0 (1<<31) /* Terminal Count has been reached */
-#define DMA_CS1 (1<<30)
-#define DMA_CS2 (1<<29)
-#define DMA_CS3 (1<<28)
-
-#define DMA_TS0 (1<<27) /* End of Transfer has been requested */
-#define DMA_TS1 (1<<26)
-#define DMA_TS2 (1<<25)
-#define DMA_TS3 (1<<24)
-
-#define DMA_CH0_ERR (1<<23) /* DMA Chanel 0 Error */
-#define DMA_CH1_ERR (1<<22)
-#define DMA_CH2_ERR (1<<21)
-#define DMA_CH3_ERR (1<<20)
-
-#define DMA_IN_DMA_REQ0 (1<<19) /* Internal DMA Request is pending */
-#define DMA_IN_DMA_REQ1 (1<<18)
-#define DMA_IN_DMA_REQ2 (1<<17)
-#define DMA_IN_DMA_REQ3 (1<<16)
-
-#define DMA_EXT_DMA_REQ0 (1<<15) /* External DMA Request is pending */
-#define DMA_EXT_DMA_REQ1 (1<<14)
-#define DMA_EXT_DMA_REQ2 (1<<13)
-#define DMA_EXT_DMA_REQ3 (1<<12)
-
-#define DMA_CH0_BUSY (1<<11) /* DMA Channel 0 Busy */
-#define DMA_CH1_BUSY (1<<10)
-#define DMA_CH2_BUSY (1<<9)
-#define DMA_CH3_BUSY (1<<8)
-
-#define DMA_SG0 (1<<7) /* DMA Channel 0 Scatter/Gather in progress */
-#define DMA_SG1 (1<<6)
-#define DMA_SG2 (1<<5)
-#define DMA_SG3 (1<<4)
-
-/*
- * DMA SG Command Register
- */
-#define SSG_ENABLE(chan) (1<<(31-chan)) /* Start Scatter Gather */
-#define SSG_MASK_ENABLE(chan) (1<<(15-chan)) /* Enable writing to SSG0 bit */
-
-/*
- * DMA Scatter/Gather Descriptor Bit fields
- */
-#define SG_LINK (1<<31) /* Link */
-#define SG_TCI_ENABLE (1<<29) /* Enable Terminal Count Interrupt */
-#define SG_ETI_ENABLE (1<<28) /* Enable End of Transfer Interrupt */
-#define SG_ERI_ENABLE (1<<27) /* Enable Error Interrupt */
-#define SG_COUNT_MASK 0xFFFF /* Count Field */
-
-#define SET_DMA_CONTROL \
- (SET_DMA_CIE_ENABLE(p_init->int_enable) | /* interrupt enable */ \
- SET_DMA_BEN(p_init->buffer_enable) | /* buffer enable */\
- SET_DMA_ETD(p_init->etd_output) | /* end of transfer pin */ \
- SET_DMA_TCE(p_init->tce_enable) | /* terminal count enable */ \
- SET_DMA_PL(p_init->pl) | /* peripheral location */ \
- SET_DMA_DAI(p_init->dai) | /* dest addr increment */ \
- SET_DMA_SAI(p_init->sai) | /* src addr increment */ \
- SET_DMA_PRIORITY(p_init->cp) | /* channel priority */ \
- SET_DMA_PW(p_init->pwidth) | /* peripheral/bus width */ \
- SET_DMA_PSC(p_init->psc) | /* peripheral setup cycles */ \
- SET_DMA_PWC(p_init->pwc) | /* peripheral wait cycles */ \
- SET_DMA_PHC(p_init->phc) | /* peripheral hold cycles */ \
- SET_DMA_PREFETCH(p_init->pf) /* read prefetch */)
-
-#define GET_DMA_POLARITY(chan) (DMAReq_ActiveLow(chan) | DMAAck_ActiveLow(chan) | EOT_ActiveLow(chan))
-
-#elif defined(CONFIG_STBXXX_DMA) /* stb03xxx */
-
-#define DMA_PPC4xx_SIZE 4096
-
-/*
- * DMA Status Register
- */
-
-#define SET_DMA_PRIORITY(x) (((x)&0x00800001)) /* DMA Channel Priority */
-#define DMA_PRIORITY_MASK 0x00800001
-#define PRIORITY_LOW 0x00000000
-#define PRIORITY_MID_LOW 0x00000001
-#define PRIORITY_MID_HIGH 0x00800000
-#define PRIORITY_HIGH 0x00800001
-#define GET_DMA_PRIORITY(x) (((((x)&DMA_PRIORITY_MASK) &0x00800000) >> 22 ) | (((x)&DMA_PRIORITY_MASK) &0x00000001))
-
-#define DMA_CS0 (1<<31) /* Terminal Count has been reached */
-#define DMA_CS1 (1<<30)
-#define DMA_CS2 (1<<29)
-#define DMA_CS3 (1<<28)
-
-#define DMA_TS0 (1<<27) /* End of Transfer has been requested */
-#define DMA_TS1 (1<<26)
-#define DMA_TS2 (1<<25)
-#define DMA_TS3 (1<<24)
-
-#define DMA_CH0_ERR (1<<23) /* DMA Chanel 0 Error */
-#define DMA_CH1_ERR (1<<22)
-#define DMA_CH2_ERR (1<<21)
-#define DMA_CH3_ERR (1<<20)
-
-#define DMA_CT0 (1<<19) /* Chained transfere */
-
-#define DMA_IN_DMA_REQ0 (1<<18) /* Internal DMA Request is pending */
-#define DMA_IN_DMA_REQ1 (1<<17)
-#define DMA_IN_DMA_REQ2 (1<<16)
-#define DMA_IN_DMA_REQ3 (1<<15)
-
-#define DMA_EXT_DMA_REQ0 (1<<14) /* External DMA Request is pending */
-#define DMA_EXT_DMA_REQ1 (1<<13)
-#define DMA_EXT_DMA_REQ2 (1<<12)
-#define DMA_EXT_DMA_REQ3 (1<<11)
-
-#define DMA_CH0_BUSY (1<<10) /* DMA Channel 0 Busy */
-#define DMA_CH1_BUSY (1<<9)
-#define DMA_CH2_BUSY (1<<8)
-#define DMA_CH3_BUSY (1<<7)
-
-#define DMA_CT1 (1<<6) /* Chained transfere */
-#define DMA_CT2 (1<<5)
-#define DMA_CT3 (1<<4)
-
-#define DMA_CH_ENABLE (1<<7)
-#define SET_DMA_CH(x) (((x)&0x1)<<7)
-#define GET_DMA_CH(x) (((x)&DMA_CH_ENABLE)>>7)
-
-/* STBx25xxx dma unique */
-/* enable device port on a dma channel
- * example ext 0 on dma 1
- */
-
-#define SSP0_RECV 15
-#define SSP0_XMIT 14
-#define EXT_DMA_0 12
-#define SC1_XMIT 11
-#define SC1_RECV 10
-#define EXT_DMA_2 9
-#define EXT_DMA_3 8
-#define SERIAL2_XMIT 7
-#define SERIAL2_RECV 6
-#define SC0_XMIT 5
-#define SC0_RECV 4
-#define SERIAL1_XMIT 3
-#define SERIAL1_RECV 2
-#define SERIAL0_XMIT 1
-#define SERIAL0_RECV 0
-
-#define DMA_CHAN_0 1
-#define DMA_CHAN_1 2
-#define DMA_CHAN_2 3
-#define DMA_CHAN_3 4
-
-/* end STBx25xx */
-
-/*
- * Bit 30 must be one for Redwoods, otherwise transfers may receive errors.
- */
-#define DMA_CR_MB0 0x2
-
-#define SET_DMA_CONTROL \
- (SET_DMA_CIE_ENABLE(p_init->int_enable) | /* interrupt enable */ \
- SET_DMA_ETD(p_init->etd_output) | /* end of transfer pin */ \
- SET_DMA_TCE(p_init->tce_enable) | /* terminal count enable */ \
- SET_DMA_PL(p_init->pl) | /* peripheral location */ \
- SET_DMA_DAI(p_init->dai) | /* dest addr increment */ \
- SET_DMA_SAI(p_init->sai) | /* src addr increment */ \
- SET_DMA_PRIORITY(p_init->cp) | /* channel priority */ \
- SET_DMA_PW(p_init->pwidth) | /* peripheral/bus width */ \
- SET_DMA_PSC(p_init->psc) | /* peripheral setup cycles */ \
- SET_DMA_PWC(p_init->pwc) | /* peripheral wait cycles */ \
- SET_DMA_PHC(p_init->phc) | /* peripheral hold cycles */ \
- SET_DMA_TCD(p_init->tcd_disable) | /* TC chain mode disable */ \
- SET_DMA_ECE(p_init->ece_enable) | /* ECE chanin mode enable */ \
- SET_DMA_CH(p_init->ch_enable) | /* Chain enable */ \
- DMA_CR_MB0 /* must be one */)
-
-#define GET_DMA_POLARITY(chan) chan
-
-#endif
-
-typedef struct {
- unsigned short in_use; /* set when channel is being used, clr when
- * available.
- */
- /*
- * Valid polarity settings:
- * DMAReq_ActiveLow(n)
- * DMAAck_ActiveLow(n)
- * EOT_ActiveLow(n)
- *
- * n is 0 to max dma chans
- */
- unsigned int polarity;
-
- char buffer_enable; /* Boolean: buffer enable */
- char tce_enable; /* Boolean: terminal count enable */
- char etd_output; /* Boolean: eot pin is a tc output */
- char pce; /* Boolean: parity check enable */
-
- /*
- * Peripheral location:
- * INTERNAL_PERIPHERAL (UART0 on the 405GP)
- * EXTERNAL_PERIPHERAL
- */
- char pl; /* internal/external peripheral */
-
- /*
- * Valid pwidth settings:
- * PW_8
- * PW_16
- * PW_32
- * PW_64
- */
- unsigned int pwidth;
-
- char dai; /* Boolean: dst address increment */
- char sai; /* Boolean: src address increment */
-
- /*
- * Valid psc settings: 0-3
- */
- unsigned int psc; /* Peripheral Setup Cycles */
-
- /*
- * Valid pwc settings:
- * 0-63
- */
- unsigned int pwc; /* Peripheral Wait Cycles */
-
- /*
- * Valid phc settings:
- * 0-7
- */
- unsigned int phc; /* Peripheral Hold Cycles */
-
- /*
- * Valid cp (channel priority) settings:
- * PRIORITY_LOW
- * PRIORITY_MID_LOW
- * PRIORITY_MID_HIGH
- * PRIORITY_HIGH
- */
- unsigned int cp; /* channel priority */
-
- /*
- * Valid pf (memory read prefetch) settings:
- *
- * PREFETCH_1
- * PREFETCH_2
- * PREFETCH_4
- */
- unsigned int pf; /* memory read prefetch */
-
- /*
- * Boolean: channel interrupt enable
- * NOTE: for sgl transfers, only the last descriptor will be setup to
- * interrupt.
- */
- char int_enable;
-
- char shift; /* easy access to byte_count shift, based on */
- /* the width of the channel */
-
- uint32_t control; /* channel control word */
-
- /* These variabled are used ONLY in single dma transfers */
- unsigned int mode; /* transfer mode */
- phys_addr_t addr;
- char ce; /* channel enable */
-#ifdef CONFIG_STB03xxx
- char ch_enable;
- char tcd_disable;
- char ece_enable;
- char td; /* transfer direction */
-#endif
-
-} ppc_dma_ch_t;
-
-/*
- * PPC44x DMA implementations have a slightly different
- * descriptor layout. Probably moved about due to the
- * change to 64-bit addresses and link pointer. I don't
- * know why they didn't just leave control_count after
- * the dst_addr.
- */
-#ifdef PPC4xx_DMA_64BIT
-typedef struct {
- uint32_t control;
- uint32_t control_count;
- phys_addr_t src_addr;
- phys_addr_t dst_addr;
- phys_addr_t next;
-} ppc_sgl_t;
-#else
-typedef struct {
- uint32_t control;
- phys_addr_t src_addr;
- phys_addr_t dst_addr;
- uint32_t control_count;
- uint32_t next;
-} ppc_sgl_t;
-#endif
-
-typedef struct {
- unsigned int dmanr;
- uint32_t control; /* channel ctrl word; loaded from each descrptr */
- uint32_t sgl_control; /* LK, TCI, ETI, and ERI bits in sgl descriptor */
- dma_addr_t dma_addr; /* dma (physical) address of this list */
- ppc_sgl_t *phead;
- dma_addr_t phead_dma;
- ppc_sgl_t *ptail;
- dma_addr_t ptail_dma;
-} sgl_list_info_t;
-
-typedef struct {
- phys_addr_t *src_addr;
- phys_addr_t *dst_addr;
- phys_addr_t dma_src_addr;
- phys_addr_t dma_dst_addr;
-} pci_alloc_desc_t;
-
-extern ppc_dma_ch_t dma_channels[];
-
-/*
- * The DMA API are in ppc4xx_dma.c and ppc4xx_sgdma.c
- */
-extern int ppc4xx_init_dma_channel(unsigned int, ppc_dma_ch_t *);
-extern int ppc4xx_get_channel_config(unsigned int, ppc_dma_ch_t *);
-extern int ppc4xx_set_channel_priority(unsigned int, unsigned int);
-extern unsigned int ppc4xx_get_peripheral_width(unsigned int);
-extern void ppc4xx_set_sg_addr(int, phys_addr_t);
-extern int ppc4xx_add_dma_sgl(sgl_handle_t, phys_addr_t, phys_addr_t, unsigned int);
-extern void ppc4xx_enable_dma_sgl(sgl_handle_t);
-extern void ppc4xx_disable_dma_sgl(sgl_handle_t);
-extern int ppc4xx_get_dma_sgl_residue(sgl_handle_t, phys_addr_t *, phys_addr_t *);
-extern int ppc4xx_delete_dma_sgl_element(sgl_handle_t, phys_addr_t *, phys_addr_t *);
-extern int ppc4xx_alloc_dma_handle(sgl_handle_t *, unsigned int, unsigned int);
-extern void ppc4xx_free_dma_handle(sgl_handle_t);
-extern int ppc4xx_get_dma_status(void);
-extern void ppc4xx_set_src_addr(int dmanr, phys_addr_t src_addr);
-extern void ppc4xx_set_dst_addr(int dmanr, phys_addr_t dst_addr);
-extern void ppc4xx_enable_dma(unsigned int dmanr);
-extern void ppc4xx_disable_dma(unsigned int dmanr);
-extern void ppc4xx_set_dma_count(unsigned int dmanr, unsigned int count);
-extern int ppc4xx_get_dma_residue(unsigned int dmanr);
-extern void ppc4xx_set_dma_addr2(unsigned int dmanr, phys_addr_t src_dma_addr,
- phys_addr_t dst_dma_addr);
-extern int ppc4xx_enable_dma_interrupt(unsigned int dmanr);
-extern int ppc4xx_disable_dma_interrupt(unsigned int dmanr);
-extern int ppc4xx_clr_dma_status(unsigned int dmanr);
-extern int ppc4xx_map_dma_port(unsigned int dmanr, unsigned int ocp_dma,short dma_chan);
-extern int ppc4xx_disable_dma_port(unsigned int dmanr, unsigned int ocp_dma,short dma_chan);
-extern int ppc4xx_set_dma_mode(unsigned int dmanr, unsigned int mode);
-
-/* These are in kernel/dma.c: */
-
-/* reserve a DMA channel */
-extern int request_dma(unsigned int dmanr, const char *device_id);
-/* release it again */
-extern void free_dma(unsigned int dmanr);
-#endif
-#endif /* __KERNEL__ */
+++ /dev/null
-/*
- * include/asm-ppc/rheap.c
- *
- * Header file for the implementation of a remote heap.
- *
- * Author: Pantelis Antoniou <panto@intracom.gr>
- *
- * 2004 (c) INTRACOM S.A. Greece. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#ifndef __ASM_PPC_RHEAP_H__
-#define __ASM_PPC_RHEAP_H__
-
-#include <linux/list.h>
-
-typedef struct _rh_block {
- struct list_head list;
- void *start;
- int size;
- const char *owner;
-} rh_block_t;
-
-typedef struct _rh_info {
- unsigned int alignment;
- int max_blocks;
- int empty_slots;
- rh_block_t *block;
- struct list_head empty_list;
- struct list_head free_list;
- struct list_head taken_list;
- unsigned int flags;
-} rh_info_t;
-
-#define RHIF_STATIC_INFO 0x1
-#define RHIF_STATIC_BLOCK 0x2
-
-typedef struct rh_stats_t {
- void *start;
- int size;
- const char *owner;
-} rh_stats_t;
-
-#define RHGS_FREE 0
-#define RHGS_TAKEN 1
-
-/* Create a remote heap dynamically */
-extern rh_info_t *rh_create(unsigned int alignment);
-
-/* Destroy a remote heap, created by rh_create() */
-extern void rh_destroy(rh_info_t * info);
-
-/* Initialize in place a remote info block */
-extern void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks,
- rh_block_t * block);
-
-/* Attach a free region to manage */
-extern int rh_attach_region(rh_info_t * info, void *start, int size);
-
-/* Detach a free region */
-extern void *rh_detach_region(rh_info_t * info, void *start, int size);
-
-/* Allocate the given size from the remote heap */
-extern void *rh_alloc(rh_info_t * info, int size, const char *owner);
-
-/* Allocate the given size from the given address */
-extern void *rh_alloc_fixed(rh_info_t * info, void *start, int size,
- const char *owner);
-
-/* Free the allocated area */
-extern int rh_free(rh_info_t * info, void *start);
-
-/* Get stats for debugging purposes */
-extern int rh_get_stats(rh_info_t * info, int what, int max_stats,
- rh_stats_t * stats);
-
-/* Simple dump of remote heap info */
-extern void rh_dump(rh_info_t * info);
-
-/* Set owner of taken block */
-extern int rh_set_owner(rh_info_t * info, void *start, const char *owner);
-
-#endif /* __ASM_PPC_RHEAP_H__ */
+++ /dev/null
-#ifndef _PPC_RMAP_H
-#define _PPC_RMAP_H
-
-/* PPC calls pte_alloc() before mem_map[] is setup ... */
-#define BROKEN_PPC_PTE_ALLOC_ONE
-
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-/*
- * hvcserver.h
- * Copyright (C) 2004 Ryan S Arnold, IBM Corporation
- *
- * PPC64 virtual I/O console server support.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _PPC64_HVCSERVER_H
-#define _PPC64_HVCSERVER_H
-
-#include <linux/list.h>
-
-/* Converged Location Code length */
-#define HVCS_CLC_LENGTH 79
-
-struct hvcs_partner_info {
- struct list_head node;
- unsigned int unit_address;
- unsigned int partition_ID;
- char location_code[HVCS_CLC_LENGTH + 1]; /* CLC + 1 null-term char */
-};
-
-extern int hvcs_free_partner_info(struct list_head *head);
-extern int hvcs_get_partner_info(unsigned int unit_address,
- struct list_head *head, unsigned long *pi_buff);
-extern int hvcs_register_connection(unsigned int unit_address,
- unsigned int p_partition_ID, unsigned int p_unit_address);
-extern int hvcs_free_connection(unsigned int unit_address);
-
-#endif /* _PPC64_HVCSERVER_H */
+++ /dev/null
-#ifndef _PPC64_RMAP_H
-#define _PPC64_RMAP_H
-
-/* PPC64 calls pte_alloc() before mem_map[] is setup ... */
-#define BROKEN_PPC_PTE_ALLOC_ONE
-
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-#ifndef _S390_RMAP_H
-#define _S390_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-#ifndef __ASM_ADC_H
-#define __ASM_ADC_H
-
-/*
- * Copyright (C) 2004 Andriy Skulysh
- */
-
-#include <asm/cpu/adc.h>
-
-int adc_single(unsigned int channel);
-
-#endif /* __ASM_ADC_H */
+++ /dev/null
-/*
- * include/asm-sh/bus-sh.h
- *
- * Copyright (C) 2004 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#ifndef __ASM_SH_BUS_SH_H
-#define __ASM_SH_BUS_SH_H
-
-extern struct bus_type sh_bus_types[];
-
-struct sh_dev {
- struct device dev;
- char *name;
- unsigned int dev_id;
- unsigned int bus_id;
- struct resource res;
- void *mapbase;
- unsigned int irq[6];
- u64 *dma_mask;
-};
-
-#define to_sh_dev(d) container_of((d), struct sh_dev, dev)
-
-#define sh_get_drvdata(d) dev_get_drvdata(&(d)->dev)
-#define sh_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, (p))
-
-struct sh_driver {
- struct device_driver drv;
- unsigned int dev_id;
- unsigned int bus_id;
- int (*probe)(struct sh_dev *);
- int (*remove)(struct sh_dev *);
- int (*suspend)(struct sh_dev *, u32);
- int (*resume)(struct sh_dev *);
-};
-
-#define to_sh_driver(d) container_of((d), struct sh_driver, drv)
-#define sh_name(d) ((d)->dev.driver->name)
-
-/*
- * Device ID numbers for bus types
- */
-enum {
- SH_DEV_ID_USB_OHCI,
-};
-
-#define SH_NR_BUSES 1
-#define SH_BUS_NAME_VIRT "shbus"
-
-enum {
- SH_BUS_VIRT,
-};
-
-/* arch/sh/kernel/cpu/bus.c */
-extern int sh_device_register(struct sh_dev *dev);
-extern void sh_device_unregister(struct sh_dev *dev);
-extern int sh_driver_register(struct sh_driver *drv);
-extern void sh_driver_unregister(struct sh_driver *drv);
-
-#endif /* __ASM_SH_BUS_SH_H */
-
+++ /dev/null
-#ifndef __ASM_CPU_SH3_ADC_H
-#define __ASM_CPU_SH3_ADC_H
-
-/*
- * Copyright (C) 2004 Andriy Skulysh
- */
-
-
-#define ADDRAH 0xa4000080
-#define ADDRAL 0xa4000082
-#define ADDRBH 0xa4000084
-#define ADDRBL 0xa4000086
-#define ADDRCH 0xa4000088
-#define ADDRCL 0xa400008a
-#define ADDRDH 0xa400008c
-#define ADDRDL 0xa400008e
-#define ADCSR 0xa4000090
-
-#define ADCSR_ADF 0x80
-#define ADCSR_ADIE 0x40
-#define ADCSR_ADST 0x20
-#define ADCSR_MULTI 0x10
-#define ADCSR_CKS 0x08
-#define ADCSR_CH_MASK 0x07
-
-#define ADCR 0xa4000092
-
-#endif /* __ASM_CPU_SH3_ADC_H */
+++ /dev/null
-/*
- * fixmap.h: compile-time virtual memory allocation
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1998 Ingo Molnar
- *
- * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
- */
-
-#ifndef _ASM_FIXMAP_H
-#define _ASM_FIXMAP_H
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <asm/page.h>
-#ifdef CONFIG_HIGHMEM
-#include <linux/threads.h>
-#include <asm/kmap_types.h>
-#endif
-
-/*
- * Here we define all the compile-time 'special' virtual
- * addresses. The point is to have a constant address at
- * compile time, but to set the physical address only
- * in the boot process. We allocate these special addresses
- * from the end of virtual memory (0xfffff000) backwards.
- * Also this lets us do fail-safe vmalloc(), we
- * can guarantee that these special addresses and
- * vmalloc()-ed addresses never overlap.
- *
- * these 'compile-time allocated' memory buffers are
- * fixed-size 4k pages. (or larger if used with an increment
- * highger than 1) use fixmap_set(idx,phys) to associate
- * physical memory with fixmap indices.
- *
- * TLB entries of such buffers will not be flushed across
- * task switches.
- */
-
-/*
- * on UP currently we will have no trace of the fixmap mechanizm,
- * no page table allocations, etc. This might change in the
- * future, say framebuffers for the console driver(s) could be
- * fix-mapped?
- */
-enum fixed_addresses {
-#ifdef CONFIG_HIGHMEM
- FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
- FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
-#endif
- __end_of_fixed_addresses
-};
-
-extern void __set_fixmap (enum fixed_addresses idx,
- unsigned long phys, pgprot_t flags);
-
-#define set_fixmap(idx, phys) \
- __set_fixmap(idx, phys, PAGE_KERNEL)
-/*
- * Some hardware wants to get fixmapped without caching.
- */
-#define set_fixmap_nocache(idx, phys) \
- __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
-/*
- * used by vmalloc.c.
- *
- * Leave one empty page between vmalloc'ed areas and
- * the start of the fixmap, and leave one page empty
- * at the top of mem..
- */
-#define FIXADDR_TOP (P4SEG - PAGE_SIZE)
-#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
-#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
-
-#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
-#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
-
-extern void __this_fixmap_does_not_exist(void);
-
-/*
- * 'index to address' translation. If anyone tries to use the idx
- * directly without tranlation, we catch the bug with a NULL-deference
- * kernel oops. Illegal ranges of incoming indices are caught too.
- */
-static inline unsigned long fix_to_virt(const unsigned int idx)
-{
- /*
- * this branch gets completely eliminated after inlining,
- * except when someone tries to use fixaddr indices in an
- * illegal way. (such as mixing up address types or using
- * out-of-range indices).
- *
- * If it doesn't get removed, the linker will complain
- * loudly with a reasonably clear error message..
- */
- if (idx >= __end_of_fixed_addresses)
- __this_fixmap_does_not_exist();
-
- return __fix_to_virt(idx);
-}
-
-static inline unsigned long virt_to_fix(const unsigned long vaddr)
-{
- BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
- return __virt_to_fix(vaddr);
-}
-
-#endif
+++ /dev/null
-#ifndef __ASM_SH_HP6XX_IDE_H
-#define __ASM_SH_HP6XX_IDE_H
-
-#define IRQ_CFCARD 93
-#define IRQ_PCMCIA 94
-
-#endif /* __ASM_SH_HP6XX_IDE_H */
-
+++ /dev/null
-#ifndef __ASM_SH_RENESAS_HS7751RVOIP_H
-#define __ASM_SH_RENESAS_HS7751RVOIP_H
-
-/*
- * linux/include/asm-sh/hs7751rvoip/hs7751rvoip.h
- *
- * Copyright (C) 2000 Atom Create Engineering Co., Ltd.
- *
- * Renesas Technology Sales HS7751RVoIP support
- */
-
-/* Box specific addresses. */
-
-#define PA_BCR 0xa4000000 /* FPGA */
-#define PA_SLICCNTR1 0xa4000006 /* SLIC PIO Control 1 */
-#define PA_SLICCNTR2 0xa4000008 /* SLIC PIO Control 2 */
-#define PA_DMACNTR 0xa400000a /* USB DMA Control */
-#define PA_INPORTR 0xa400000c /* Input Port Register */
-#define PA_OUTPORTR 0xa400000e /* Output Port Reguster */
-#define PA_VERREG 0xa4000014 /* FPGA Version Register */
-
-#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */
-#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */
-#define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */
-
-#define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */
-#define IRLCNTR2 (PA_BCR + 2) /* Interrupt Control Register2 */
-#define IRLCNTR3 (PA_BCR + 4) /* Interrupt Control Register3 */
-#define IRLCNTR4 (PA_BCR + 16) /* Interrupt Control Register4 */
-#define IRLCNTR5 (PA_BCR + 18) /* Interrupt Control Register5 */
-
-#define IRQ_PCIETH 6 /* PCI Ethernet IRQ */
-#define IRQ_PCIHUB 7 /* PCI Ethernet Hub IRQ */
-#define IRQ_USBCOM 8 /* USB Comunication IRQ */
-#define IRQ_USBCON 9 /* USB Connect IRQ */
-#define IRQ_USBDMA 10 /* USB DMA IRQ */
-#define IRQ_CFCARD 11 /* CF Card IRQ */
-#define IRQ_PCMCIA 12 /* PCMCIA IRQ */
-#define IRQ_PCISLOT 13 /* PCI Slot #1 IRQ */
-#define IRQ_ONHOOK1 0 /* ON HOOK1 IRQ */
-#define IRQ_OFFHOOK1 1 /* OFF HOOK1 IRQ */
-#define IRQ_ONHOOK2 2 /* ON HOOK2 IRQ */
-#define IRQ_OFFHOOK2 3 /* OFF HOOK2 IRQ */
-#define IRQ_RINGING 4 /* Ringing IRQ */
-#define IRQ_CODEC 5 /* CODEC IRQ */
-
-#endif /* __ASM_SH_RENESAS_HS7751RVOIP */
+++ /dev/null
-#ifndef __ASM_SH_HS7751RVOIP_IDE_H
-#define __ASM_SH_HS7751RVOIP_IDE_H
-
-/* Nothing to see here.. */
-#include <asm/hs7751rvoip/hs7751rvoip.h>
-
-#endif /* __ASM_SH_HS7751RVOIP_IDE_H */
-
+++ /dev/null
-/*
- * include/asm-sh/hs7751rvoip/hs7751rvoip.h
- *
- * Modified version of io_se.h for the hs7751rvoip-specific functions.
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * IO functions for an Renesas Technology sales HS7751RVOIP
- */
-
-#ifndef _ASM_SH_IO_HS7751RVOIP_H
-#define _ASM_SH_IO_HS7751RVOIP_H
-
-#include <asm/io_generic.h>
-
-extern unsigned char hs7751rvoip_inb(unsigned long port);
-extern unsigned short hs7751rvoip_inw(unsigned long port);
-extern unsigned int hs7751rvoip_inl(unsigned long port);
-
-extern void hs7751rvoip_outb(unsigned char value, unsigned long port);
-extern void hs7751rvoip_outw(unsigned short value, unsigned long port);
-extern void hs7751rvoip_outl(unsigned int value, unsigned long port);
-
-extern unsigned char hs7751rvoip_inb_p(unsigned long port);
-extern void hs7751rvoip_outb_p(unsigned char value, unsigned long port);
-
-extern void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count);
-extern void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count);
-extern void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count);
-extern void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count);
-extern void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count);
-extern void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count);
-
-extern void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size);
-
-extern unsigned long hs7751rvoip_isa_port2addr(unsigned long offset);
-
-#endif /* _ASM_SH_IO_HS7751RVOIP_H */
+++ /dev/null
-#ifndef _SH_RMAP_H
-#define _SH_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-#ifndef __ASM_SH_RTS7751R2D_IDE_H
-#define __ASM_SH_RTS7751R2D_IDE_H
-
-/* Nothing to see here.. */
-#include <asm/rts7751r2d/rts7751r2d.h>
-
-#endif /* __ASM_SH_RTS7751R2D_IDE_H */
-
+++ /dev/null
-/*
- * include/asm-sh/io_rts7751r2d.h
- *
- * Modified version of io_se.h for the rts7751r2d-specific functions.
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * IO functions for an Renesas Technology sales RTS7751R2D
- */
-
-#ifndef _ASM_SH_IO_RTS7751R2D_H
-#define _ASM_SH_IO_RTS7751R2D_H
-
-extern unsigned char rts7751r2d_inb(unsigned long port);
-extern unsigned short rts7751r2d_inw(unsigned long port);
-extern unsigned int rts7751r2d_inl(unsigned long port);
-
-extern void rts7751r2d_outb(unsigned char value, unsigned long port);
-extern void rts7751r2d_outw(unsigned short value, unsigned long port);
-extern void rts7751r2d_outl(unsigned int value, unsigned long port);
-
-extern unsigned char rts7751r2d_inb_p(unsigned long port);
-extern void rts7751r2d_outb_p(unsigned char value, unsigned long port);
-
-extern void rts7751r2d_insb(unsigned long port, void *addr, unsigned long count);
-extern void rts7751r2d_insw(unsigned long port, void *addr, unsigned long count);
-extern void rts7751r2d_insl(unsigned long port, void *addr, unsigned long count);
-extern void rts7751r2d_outsb(unsigned long port, const void *addr, unsigned long count);
-extern void rts7751r2d_outsw(unsigned long port, const void *addr, unsigned long count);
-extern void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count);
-
-extern void *rts7751r2d_ioremap(unsigned long offset, unsigned long size);
-
-extern unsigned long rts7751r2d_isa_port2addr(unsigned long offset);
-
-#endif /* _ASM_SH_IO_RTS7751R2D_H */
+++ /dev/null
-#ifndef __ASM_SH_RENESAS_RTS7751R2D_H
-#define __ASM_SH_RENESAS_RTS7751R2D_H
-
-/*
- * linux/include/asm-sh/renesas_rts7751r2d.h
- *
- * Copyright (C) 2000 Atom Create Engineering Co., Ltd.
- *
- * Renesas Technology Sales RTS7751R2D support
- */
-
-/* Box specific addresses. */
-
-#define PA_BCR 0xa4000000 /* FPGA */
-#define PA_IRLMON 0xa4000002 /* Interrupt Status control */
-#define PA_CFCTL 0xa4000004 /* CF Timing control */
-#define PA_CFPOW 0xa4000006 /* CF Power control */
-#define PA_DISPCTL 0xa4000008 /* Display Timing control */
-#define PA_SDMPOW 0xa400000a /* SD Power control */
-#define PA_RTCCE 0xa400000c /* RTC(9701) Enable control */
-#define PA_PCICD 0xa400000e /* PCI Extention detect control */
-#define PA_VOYAGERRTS 0xa4000020 /* VOYAGER Reset control */
-#if defined(CONFIG_RTS7751R2D_REV11)
-#define PA_AXRST 0xa4000022 /* AX_LAN Reset control */
-#define PA_CFRST 0xa4000024 /* CF Reset control */
-#define PA_ADMRTS 0xa4000026 /* SD Reset control */
-#define PA_EXTRST 0xa4000028 /* Extention Reset control */
-#define PA_CFCDINTCLR 0xa400002a /* CF Insert Interrupt clear */
-#else
-#define PA_CFRST 0xa4000022 /* CF Reset control */
-#define PA_ADMRTS 0xa4000024 /* SD Reset control */
-#define PA_EXTRST 0xa4000026 /* Extention Reset control */
-#define PA_CFCDINTCLR 0xa4000028 /* CF Insert Interrupt clear */
-#define PA_KEYCTLCLR 0xa400002a /* Key Interrupt clear */
-#endif
-#define PA_POWOFF 0xa4000030 /* Board Power OFF control */
-#define PA_VERREG 0xa4000032 /* FPGA Version Register */
-#define PA_INPORT 0xa4000034 /* KEY Input Port control */
-#define PA_OUTPORT 0xa4000036 /* LED control */
-#define PA_DMPORT 0xa4000038 /* DM270 Output Port control */
-
-#define PA_AX88796L 0xaa000400 /* AX88796L Area */
-#define PA_VOYAGER 0xab000000 /* VOYAGER GX Area */
-#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */
-#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */
-#define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */
-#define AX88796L_IO_BASE 0x1000 /* AX88796L IO Base Address */
-
-#define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */
-
-#if defined(CONFIG_RTS7751R2D_REV11)
-#define IRQ_PCIETH 0 /* PCI Ethernet IRQ */
-#define IRQ_CFCARD 1 /* CF Card IRQ */
-#define IRQ_CFINST 2 /* CF Card Insert IRQ */
-#define IRQ_PCMCIA 3 /* PCMCIA IRQ */
-#define IRQ_VOYAGER 4 /* VOYAGER IRQ */
-#define IRQ_ONETH 5 /* On board Ethernet IRQ */
-#else
-#define IRQ_KEYIN 0 /* Key Input IRQ */
-#define IRQ_PCIETH 1 /* PCI Ethernet IRQ */
-#define IRQ_CFCARD 2 /* CF Card IRQ */
-#define IRQ_CFINST 3 /* CF Card Insert IRQ */
-#define IRQ_PCMCIA 4 /* PCMCIA IRQ */
-#define IRQ_VOYAGER 5 /* VOYAGER IRQ */
-#endif
-#define IRQ_RTCALM 6 /* RTC Alarm IRQ */
-#define IRQ_RTCTIME 7 /* RTC Timer IRQ */
-#define IRQ_SDCARD 8 /* SD Card IRQ */
-#define IRQ_PCISLOT1 9 /* PCI Slot #1 IRQ */
-#define IRQ_PCISLOT2 10 /* PCI Slot #2 IRQ */
-#define IRQ_EXTENTION 11 /* EXTn IRQ */
-
-#endif /* __ASM_SH_RENESAS_RTS7751R2D */
+++ /dev/null
-/* -------------------------------------------------------------------- */
-/* voyagergx_reg.h */
-/* -------------------------------------------------------------------- */
-/* This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Copyright 2003 (c) Lineo uSolutions,Inc.
-*/
-/* -------------------------------------------------------------------- */
-
-#ifndef _VOYAGER_GX_REG_H
-#define _VOYAGER_GX_REG_H
-
-#define VOYAGER_BASE 0xb3e00000
-#define VOYAGER_USBH_BASE (0x40000 + VOYAGER_BASE)
-#define VOYAGER_UART_BASE (0x30000 + VOYAGER_BASE)
-#define VOYAGER_AC97_BASE (0xa0000 + VOYAGER_BASE)
-
-#define VOYAGER_IRQ_NUM 32
-#define VOYAGER_IRQ_BASE 50
-#define VOYAGER_USBH_IRQ VOYAGER_IRQ_BASE + 6
-#define VOYAGER_8051_IRQ VOYAGER_IRQ_BASE + 10
-#define VOYAGER_UART0_IRQ VOYAGER_IRQ_BASE + 12
-#define VOYAGER_UART1_IRQ VOYAGER_IRQ_BASE + 13
-#define VOYAGER_AC97_IRQ VOYAGER_IRQ_BASE + 17
-
-/* ----- MISC controle register ------------------------------ */
-#define MISC_CTRL (0x000004 + VOYAGER_BASE)
-#define MISC_CTRL_USBCLK_48 (3 << 28)
-#define MISC_CTRL_USBCLK_96 (2 << 28)
-#define MISC_CTRL_USBCLK_CRYSTAL (1 << 28)
-
-/* ----- GPIO[31:0] register --------------------------------- */
-#define GPIO_MUX_LOW (0x000008 + VOYAGER_BASE)
-#define GPIO_MUX_LOW_AC97 0x1F000000
-#define GPIO_MUX_LOW_8051 0x0000ffff
-#define GPIO_MUX_LOW_PWM (1 << 29)
-
-/* ----- GPIO[63:32] register --------------------------------- */
-#define GPIO_MUX_HIGH (0x00000C + VOYAGER_BASE)
-
-/* ----- DRAM controle register ------------------------------- */
-#define DRAM_CTRL (0x000010 + VOYAGER_BASE)
-#define DRAM_CTRL_EMBEDDED (1 << 31)
-#define DRAM_CTRL_CPU_BURST_1 (0 << 28)
-#define DRAM_CTRL_CPU_BURST_2 (1 << 28)
-#define DRAM_CTRL_CPU_BURST_4 (2 << 28)
-#define DRAM_CTRL_CPU_BURST_8 (3 << 28)
-#define DRAM_CTRL_CPU_CAS_LATENCY (1 << 27)
-#define DRAM_CTRL_CPU_SIZE_2 (0 << 24)
-#define DRAM_CTRL_CPU_SIZE_4 (1 << 24)
-#define DRAM_CTRL_CPU_SIZE_64 (4 << 24)
-#define DRAM_CTRL_CPU_SIZE_32 (5 << 24)
-#define DRAM_CTRL_CPU_SIZE_16 (6 << 24)
-#define DRAM_CTRL_CPU_SIZE_8 (7 << 24)
-#define DRAM_CTRL_CPU_COLUMN_SIZE_1024 (0 << 22)
-#define DRAM_CTRL_CPU_COLUMN_SIZE_512 (2 << 22)
-#define DRAM_CTRL_CPU_COLUMN_SIZE_256 (3 << 22)
-#define DRAM_CTRL_CPU_ACTIVE_PRECHARGE (1 << 21)
-#define DRAM_CTRL_CPU_RESET (1 << 20)
-#define DRAM_CTRL_CPU_BANKS (1 << 19)
-#define DRAM_CTRL_CPU_WRITE_PRECHARGE (1 << 18)
-#define DRAM_CTRL_BLOCK_WRITE (1 << 17)
-#define DRAM_CTRL_REFRESH_COMMAND (1 << 16)
-#define DRAM_CTRL_SIZE_4 (0 << 13)
-#define DRAM_CTRL_SIZE_8 (1 << 13)
-#define DRAM_CTRL_SIZE_16 (2 << 13)
-#define DRAM_CTRL_SIZE_32 (3 << 13)
-#define DRAM_CTRL_SIZE_64 (4 << 13)
-#define DRAM_CTRL_SIZE_2 (5 << 13)
-#define DRAM_CTRL_COLUMN_SIZE_256 (0 << 11)
-#define DRAM_CTRL_COLUMN_SIZE_512 (2 << 11)
-#define DRAM_CTRL_COLUMN_SIZE_1024 (3 << 11)
-#define DRAM_CTRL_BLOCK_WRITE_TIME (1 << 10)
-#define DRAM_CTRL_BLOCK_WRITE_PRECHARGE (1 << 9)
-#define DRAM_CTRL_ACTIVE_PRECHARGE (1 << 8)
-#define DRAM_CTRL_RESET (1 << 7)
-#define DRAM_CTRL_REMAIN_ACTIVE (1 << 6)
-#define DRAM_CTRL_BANKS (1 << 1)
-#define DRAM_CTRL_WRITE_PRECHARGE (1 << 0)
-
-/* ----- Arvitration control register -------------------------- */
-#define ARBITRATION_CTRL (0x000014 + VOYAGER_BASE)
-#define ARBITRATION_CTRL_CPUMEM (1 << 29)
-#define ARBITRATION_CTRL_INTMEM (1 << 28)
-#define ARBITRATION_CTRL_USB_OFF (0 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_1 (1 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_2 (2 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_3 (3 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_4 (4 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_5 (5 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_6 (6 << 24)
-#define ARBITRATION_CTRL_USB_PRIORITY_7 (7 << 24)
-#define ARBITRATION_CTRL_PANEL_OFF (0 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_1 (1 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_2 (2 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_3 (3 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_4 (4 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_5 (5 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_6 (6 << 20)
-#define ARBITRATION_CTRL_PANEL_PRIORITY_7 (7 << 20)
-#define ARBITRATION_CTRL_ZVPORT_OFF (0 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_1 (1 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_2 (2 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_3 (3 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_4 (4 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_5 (5 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_6 (6 << 16)
-#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_7 (7 << 16)
-#define ARBITRATION_CTRL_CMD_INTPR_OFF (0 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_1 (1 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_2 (2 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_3 (3 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_4 (4 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_5 (5 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_6 (6 << 12)
-#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_7 (7 << 12)
-#define ARBITRATION_CTRL_DMA_OFF (0 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_1 (1 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_2 (2 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_3 (3 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_4 (4 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_5 (5 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_6 (6 << 8)
-#define ARBITRATION_CTRL_DMA_PRIORITY_7 (7 << 8)
-#define ARBITRATION_CTRL_VIDEO_OFF (0 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_1 (1 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_2 (2 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_3 (3 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_4 (4 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_5 (5 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_6 (6 << 4)
-#define ARBITRATION_CTRL_VIDEO_PRIORITY_7 (7 << 4)
-#define ARBITRATION_CTRL_CRT_OFF (0 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_1 (1 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_2 (2 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_3 (3 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_4 (4 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_5 (5 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_6 (6 << 0)
-#define ARBITRATION_CTRL_CRT_PRIORITY_7 (7 << 0)
-
-/* ----- Command list status register -------------------------- */
-#define CMD_INTPR_STATUS (0x000024 + VOYAGER_BASE)
-
-/* ----- Interrupt status register ----------------------------- */
-#define INT_STATUS (0x00002c + VOYAGER_BASE)
-#define INT_STATUS_UH (1 << 6)
-#define INT_STATUS_MC (1 << 10)
-#define INT_STATUS_U0 (1 << 12)
-#define INT_STATUS_U1 (1 << 13)
-#define INT_STATUS_AC (1 << 17)
-
-/* ----- Interrupt mask register ------------------------------ */
-#define VOYAGER_INT_MASK (0x000030 + VOYAGER_BASE)
-#define VOYAGER_INT_MASK_AC (1 << 17)
-
-/* ----- Current Gate register ---------------------------------*/
-#define CURRENT_GATE (0x000038 + VOYAGER_BASE)
-
-/* ----- Power mode 0 gate register --------------------------- */
-#define POWER_MODE0_GATE (0x000040 + VOYAGER_BASE)
-#define POWER_MODE0_GATE_G (1 << 6)
-#define POWER_MODE0_GATE_U0 (1 << 7)
-#define POWER_MODE0_GATE_U1 (1 << 8)
-#define POWER_MODE0_GATE_UH (1 << 11)
-#define POWER_MODE0_GATE_AC (1 << 18)
-
-/* ----- Power mode 1 gate register --------------------------- */
-#define POWER_MODE1_GATE (0x000048 + VOYAGER_BASE)
-#define POWER_MODE1_GATE_G (1 << 6)
-#define POWER_MODE1_GATE_U0 (1 << 7)
-#define POWER_MODE1_GATE_U1 (1 << 8)
-#define POWER_MODE1_GATE_UH (1 << 11)
-#define POWER_MODE1_GATE_AC (1 << 18)
-
-/* ----- Power mode 0 clock register -------------------------- */
-#define POWER_MODE0_CLOCK (0x000044 + VOYAGER_BASE)
-
-/* ----- Power mode 1 clock register -------------------------- */
-#define POWER_MODE1_CLOCK (0x00004C + VOYAGER_BASE)
-
-/* ----- Power mode controll register ------------------------- */
-#define POWER_MODE_CTRL (0x000054 + VOYAGER_BASE)
-
-/* ----- Miscellaneous Timing register ------------------------ */
-#define SYSTEM_DRAM_CTRL (0x000068 + VOYAGER_BASE)
-
-/* ----- PWM register ------------------------------------------*/
-#define PWM_0 (0x010020 + VOYAGER_BASE)
-#define PWM_0_HC(x) (((x)&0x0fff)<<20)
-#define PWM_0_LC(x) (((x)&0x0fff)<<8 )
-#define PWM_0_CLK_DEV(x) (((x)&0x000f)<<4 )
-#define PWM_0_EN (1<<0)
-
-/* ----- I2C register ----------------------------------------- */
-#define I2C_BYTECOUNT (0x010040 + VOYAGER_BASE)
-#define I2C_CONTROL (0x010041 + VOYAGER_BASE)
-#define I2C_STATUS (0x010042 + VOYAGER_BASE)
-#define I2C_RESET (0x010042 + VOYAGER_BASE)
-#define I2C_SADDRESS (0x010043 + VOYAGER_BASE)
-#define I2C_DATA (0x010044 + VOYAGER_BASE)
-
-/* ----- Controle register bits ----------------------------------------- */
-#define I2C_CONTROL_E (1 << 0)
-#define I2C_CONTROL_MODE (1 << 1)
-#define I2C_CONTROL_STATUS (1 << 2)
-#define I2C_CONTROL_INT (1 << 4)
-#define I2C_CONTROL_INTACK (1 << 5)
-#define I2C_CONTROL_REPEAT (1 << 6)
-
-/* ----- Status register bits ----------------------------------------- */
-#define I2C_STATUS_BUSY (1 << 0)
-#define I2C_STATUS_ACK (1 << 1)
-#define I2C_STATUS_ERROR (1 << 2)
-#define I2C_STATUS_COMPLETE (1 << 3)
-
-/* ----- Reset register ---------------------------------------------- */
-#define I2C_RESET_ERROR (1 << 2)
-
-/* ----- transmission frequencies ------------------------------------- */
-#define I2C_SADDRESS_SELECT (1 << 0)
-
-/* ----- Display Controll register ----------------------------------------- */
-#define PANEL_DISPLAY_CTRL (0x080000 + VOYAGER_BASE)
-#define PANEL_DISPLAY_CTRL_BIAS (1<<26)
-#define PANEL_PAN_CTRL (0x080004 + VOYAGER_BASE)
-#define PANEL_COLOR_KEY (0x080008 + VOYAGER_BASE)
-#define PANEL_FB_ADDRESS (0x08000C + VOYAGER_BASE)
-#define PANEL_FB_WIDTH (0x080010 + VOYAGER_BASE)
-#define PANEL_WINDOW_WIDTH (0x080014 + VOYAGER_BASE)
-#define PANEL_WINDOW_HEIGHT (0x080018 + VOYAGER_BASE)
-#define PANEL_PLANE_TL (0x08001C + VOYAGER_BASE)
-#define PANEL_PLANE_BR (0x080020 + VOYAGER_BASE)
-#define PANEL_HORIZONTAL_TOTAL (0x080024 + VOYAGER_BASE)
-#define PANEL_HORIZONTAL_SYNC (0x080028 + VOYAGER_BASE)
-#define PANEL_VERTICAL_TOTAL (0x08002C + VOYAGER_BASE)
-#define PANEL_VERTICAL_SYNC (0x080030 + VOYAGER_BASE)
-#define PANEL_CURRENT_LINE (0x080034 + VOYAGER_BASE)
-#define VIDEO_DISPLAY_CTRL (0x080040 + VOYAGER_BASE)
-#define VIDEO_FB_0_ADDRESS (0x080044 + VOYAGER_BASE)
-#define VIDEO_FB_WIDTH (0x080048 + VOYAGER_BASE)
-#define VIDEO_FB_0_LAST_ADDRESS (0x08004C + VOYAGER_BASE)
-#define VIDEO_PLANE_TL (0x080050 + VOYAGER_BASE)
-#define VIDEO_PLANE_BR (0x080054 + VOYAGER_BASE)
-#define VIDEO_SCALE (0x080058 + VOYAGER_BASE)
-#define VIDEO_INITIAL_SCALE (0x08005C + VOYAGER_BASE)
-#define VIDEO_YUV_CONSTANTS (0x080060 + VOYAGER_BASE)
-#define VIDEO_FB_1_ADDRESS (0x080064 + VOYAGER_BASE)
-#define VIDEO_FB_1_LAST_ADDRESS (0x080068 + VOYAGER_BASE)
-#define VIDEO_ALPHA_DISPLAY_CTRL (0x080080 + VOYAGER_BASE)
-#define VIDEO_ALPHA_FB_ADDRESS (0x080084 + VOYAGER_BASE)
-#define VIDEO_ALPHA_FB_WIDTH (0x080088 + VOYAGER_BASE)
-#define VIDEO_ALPHA_FB_LAST_ADDRESS (0x08008C + VOYAGER_BASE)
-#define VIDEO_ALPHA_PLANE_TL (0x080090 + VOYAGER_BASE)
-#define VIDEO_ALPHA_PLANE_BR (0x080094 + VOYAGER_BASE)
-#define VIDEO_ALPHA_SCALE (0x080098 + VOYAGER_BASE)
-#define VIDEO_ALPHA_INITIAL_SCALE (0x08009C + VOYAGER_BASE)
-#define VIDEO_ALPHA_CHROMA_KEY (0x0800A0 + VOYAGER_BASE)
-#define PANEL_HWC_ADDRESS (0x0800F0 + VOYAGER_BASE)
-#define PANEL_HWC_LOCATION (0x0800F4 + VOYAGER_BASE)
-#define PANEL_HWC_COLOR_12 (0x0800F8 + VOYAGER_BASE)
-#define PANEL_HWC_COLOR_3 (0x0800FC + VOYAGER_BASE)
-#define ALPHA_DISPLAY_CTRL (0x080100 + VOYAGER_BASE)
-#define ALPHA_FB_ADDRESS (0x080104 + VOYAGER_BASE)
-#define ALPHA_FB_WIDTH (0x080108 + VOYAGER_BASE)
-#define ALPHA_PLANE_TL (0x08010C + VOYAGER_BASE)
-#define ALPHA_PLANE_BR (0x080110 + VOYAGER_BASE)
-#define ALPHA_CHROMA_KEY (0x080114 + VOYAGER_BASE)
-#define CRT_DISPLAY_CTRL (0x080200 + VOYAGER_BASE)
-#define CRT_FB_ADDRESS (0x080204 + VOYAGER_BASE)
-#define CRT_FB_WIDTH (0x080208 + VOYAGER_BASE)
-#define CRT_HORIZONTAL_TOTAL (0x08020C + VOYAGER_BASE)
-#define CRT_HORIZONTAL_SYNC (0x080210 + VOYAGER_BASE)
-#define CRT_VERTICAL_TOTAL (0x080214 + VOYAGER_BASE)
-#define CRT_VERTICAL_SYNC (0x080218 + VOYAGER_BASE)
-#define CRT_SIGNATURE_ANALYZER (0x08021C + VOYAGER_BASE)
-#define CRT_CURRENT_LINE (0x080220 + VOYAGER_BASE)
-#define CRT_MONITOR_DETECT (0x080224 + VOYAGER_BASE)
-#define CRT_HWC_ADDRESS (0x080230 + VOYAGER_BASE)
-#define CRT_HWC_LOCATION (0x080234 + VOYAGER_BASE)
-#define CRT_HWC_COLOR_12 (0x080238 + VOYAGER_BASE)
-#define CRT_HWC_COLOR_3 (0x08023C + VOYAGER_BASE)
-#define CRT_PALETTE_RAM (0x080400 + VOYAGER_BASE)
-#define PANEL_PALETTE_RAM (0x080800 + VOYAGER_BASE)
-#define VIDEO_PALETTE_RAM (0x080C00 + VOYAGER_BASE)
-
-/* ----- 8051 Controle register ----------------------------------------- */
-#define VOYAGER_8051_BASE (0x000c0000 + VOYAGER_BASE)
-#define VOYAGER_8051_RESET (0x000b0000 + VOYAGER_BASE)
-#define VOYAGER_8051_SELECT (0x000b0004 + VOYAGER_BASE)
-#define VOYAGER_8051_CPU_INT (0x000b000c + VOYAGER_BASE)
-
-/* ----- AC97 Controle register ----------------------------------------- */
-#define AC97_TX_SLOT0 (0x00000000 + VOYAGER_AC97_BASE)
-#define AC97_CONTROL_STATUS (0x00000080 + VOYAGER_AC97_BASE)
-#define AC97C_READ (1 << 19)
-#define AC97C_WD_BIT (1 << 2)
-#define AC97C_INDEX_MASK 0x7f
-/* -------------------------------------------------------------------- */
-
-#endif /* _VOYAGER_GX_REG_H */
+++ /dev/null
-/*
- * include/asm-sh/se7300/io.h
- *
- * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
- * IO functions for SH-Mobile(SH7300) SolutionEngine
- */
-
-#ifndef _ASM_SH_IO_7300SE_H
-#define _ASM_SH_IO_7300SE_H
-
-extern unsigned char sh7300se_inb(unsigned long port);
-extern unsigned short sh7300se_inw(unsigned long port);
-extern unsigned int sh7300se_inl(unsigned long port);
-
-extern void sh7300se_outb(unsigned char value, unsigned long port);
-extern void sh7300se_outw(unsigned short value, unsigned long port);
-extern void sh7300se_outl(unsigned int value, unsigned long port);
-
-extern unsigned char sh7300se_inb_p(unsigned long port);
-extern void sh7300se_outb_p(unsigned char value, unsigned long port);
-
-extern void sh7300se_insb(unsigned long port, void *addr, unsigned long count);
-extern void sh7300se_insw(unsigned long port, void *addr, unsigned long count);
-extern void sh7300se_insl(unsigned long port, void *addr, unsigned long count);
-extern void sh7300se_outsb(unsigned long port, const void *addr, unsigned long count);
-extern void sh7300se_outsw(unsigned long port, const void *addr, unsigned long count);
-extern void sh7300se_outsl(unsigned long port, const void *addr, unsigned long count);
-
-#endif /* _ASM_SH_IO_7300SE_H */
+++ /dev/null
-#ifndef __ASM_SH_HITACHI_SE7300_H
-#define __ASM_SH_HITACHI_SE7300_H
-
-/*
- * linux/include/asm-sh/se/se7300.h
- *
- * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
- *
- * SH-Mobile SolutionEngine 7300 support
- */
-
-/* Box specific addresses. */
-
-/* Area 0 */
-#define PA_ROM 0x00000000 /* EPROM */
-#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte(Actually 2MB) */
-#define PA_FROM 0x00400000 /* Flash ROM */
-#define PA_FROM_SIZE 0x00400000 /* Flash size 4M byte */
-#define PA_SRAM 0x00800000 /* SRAM */
-#define PA_FROM_SIZE 0x00400000 /* SRAM size 4M byte */
-/* Area 1 */
-#define PA_EXT1 0x04000000
-#define PA_EXT1_SIZE 0x04000000
-/* Area 2 */
-#define PA_EXT2 0x08000000
-#define PA_EXT2_SIZE 0x04000000
-/* Area 3 */
-#define PA_SDRAM 0x0c000000
-#define PA_SDRAM_SIZE 0x04000000
-/* Area 4 */
-#define PA_PCIC 0x10000000 /* MR-SHPC-01 PCMCIA */
-#define PA_MRSHPC 0xb03fffe0 /* MR-SHPC-01 PCMCIA controller */
-#define PA_MRSHPC_MW1 0xb0400000 /* MR-SHPC-01 memory window base */
-#define PA_MRSHPC_MW2 0xb0500000 /* MR-SHPC-01 attribute window base */
-#define PA_MRSHPC_IO 0xb0600000 /* MR-SHPC-01 I/O window base */
-#define MRSHPC_OPTION (PA_MRSHPC + 6)
-#define MRSHPC_CSR (PA_MRSHPC + 8)
-#define MRSHPC_ISR (PA_MRSHPC + 10)
-#define MRSHPC_ICR (PA_MRSHPC + 12)
-#define MRSHPC_CPWCR (PA_MRSHPC + 14)
-#define MRSHPC_MW0CR1 (PA_MRSHPC + 16)
-#define MRSHPC_MW1CR1 (PA_MRSHPC + 18)
-#define MRSHPC_IOWCR1 (PA_MRSHPC + 20)
-#define MRSHPC_MW0CR2 (PA_MRSHPC + 22)
-#define MRSHPC_MW1CR2 (PA_MRSHPC + 24)
-#define MRSHPC_IOWCR2 (PA_MRSHPC + 26)
-#define MRSHPC_CDCR (PA_MRSHPC + 28)
-#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30)
-#define PA_LED 0xb0800000 /* LED */
-#define PA_DIPSW 0xb0900000 /* Dip switch 31 */
-#define PA_EPLD_MODESET 0xb0a00000 /* FPGA Mode set register */
-#define PA_EPLD_ST1 0xb0a80000 /* FPGA Interrupt status register1 */
-#define PA_EPLD_ST2 0xb0ac0000 /* FPGA Interrupt status register2 */
-/* Area 5 */
-#define PA_EXT5 0x14000000
-#define PA_EXT5_SIZE 0x04000000
-/* Area 6 */
-#define PA_LCD1 0xb8000000
-#define PA_LCD2 0xb8800000
-
-#endif /* __ASM_SH_HITACHI_SE7300_H */
+++ /dev/null
-#ifdef __KERNEL__
-#ifndef _SH_SETUP_H
-#define _SH_SETUP_H
-
-#define COMMAND_LINE_SIZE 256
-
-#endif /* _SH_SETUP_H */
-#endif /* __KERNEL__ */
+++ /dev/null
-#ifndef __ASM_SH64_A_OUT_H
-#define __ASM_SH64_A_OUT_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/a.out.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-struct exec
-{
- unsigned long a_info; /* Use macros N_MAGIC, etc for access */
- unsigned a_text; /* length of text, in bytes */
- unsigned a_data; /* length of data, in bytes */
- unsigned a_bss; /* length of uninitialized data area for file, in bytes */
- unsigned a_syms; /* length of symbol table data in file, in bytes */
- unsigned a_entry; /* start address */
- unsigned a_trsize; /* length of relocation info for text, in bytes */
- unsigned a_drsize; /* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a) ((a).a_trsize)
-#define N_DRSIZE(a) ((a).a_drsize)
-#define N_SYMSIZE(a) ((a).a_syms)
-
-#ifdef __KERNEL__
-
-#define STACK_TOP TASK_SIZE
-
-#endif
-
-#endif /* __ASM_SH64_A_OUT_H */
+++ /dev/null
-#ifndef __ASM_SH64_ATOMIC_H
-#define __ASM_SH64_ATOMIC_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/atomic.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-
-/*
- * Atomic operations that C can't guarantee us. Useful for
- * resource counting etc..
- *
- */
-
-typedef struct { volatile int counter; } atomic_t;
-
-#define ATOMIC_INIT(i) ( (atomic_t) { (i) } )
-
-#define atomic_read(v) ((v)->counter)
-#define atomic_set(v,i) ((v)->counter = (i))
-
-#include <asm/system.h>
-
-/*
- * To get proper branch prediction for the main line, we must branch
- * forward to code at the end of this object's .text section, then
- * branch back to restart the operation.
- */
-
-static __inline__ void atomic_add(int i, atomic_t * v)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- *(long *)v += i;
- local_irq_restore(flags);
-}
-
-static __inline__ void atomic_sub(int i, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- *(long *)v -= i;
- local_irq_restore(flags);
-}
-
-static __inline__ int atomic_add_return(int i, atomic_t * v)
-{
- unsigned long temp, flags;
-
- local_irq_save(flags);
- temp = *(long *)v;
- temp += i;
- *(long *)v = temp;
- local_irq_restore(flags);
-
- return temp;
-}
-
-#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
-
-static __inline__ int atomic_sub_return(int i, atomic_t * v)
-{
- unsigned long temp, flags;
-
- local_irq_save(flags);
- temp = *(long *)v;
- temp -= i;
- *(long *)v = temp;
- local_irq_restore(flags);
-
- return temp;
-}
-
-#define atomic_dec_return(v) atomic_sub_return(1,(v))
-#define atomic_inc_return(v) atomic_add_return(1,(v))
-
-/*
- * atomic_inc_and_test - increment and test
- * @v: pointer of type atomic_t
- *
- * Atomically increments @v by 1
- * and returns true if the result is zero, or false for all
- * other cases.
- */
-#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
-
-#define atomic_sub_and_test(i,v) (atomic_sub_return((i), (v)) == 0)
-#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
-
-#define atomic_inc(v) atomic_add(1,(v))
-#define atomic_dec(v) atomic_sub(1,(v))
-
-static __inline__ void atomic_clear_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- *(long *)v &= ~mask;
- local_irq_restore(flags);
-}
-
-static __inline__ void atomic_set_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- *(long *)v |= mask;
- local_irq_restore(flags);
-}
-
-/* Atomic operations are already serializing on SH */
-#define smp_mb__before_atomic_dec() barrier()
-#define smp_mb__after_atomic_dec() barrier()
-#define smp_mb__before_atomic_inc() barrier()
-#define smp_mb__after_atomic_inc() barrier()
-
-#endif /* __ASM_SH64_ATOMIC_H */
+++ /dev/null
-#ifndef __ASM_SH64_BITOPS_H
-#define __ASM_SH64_BITOPS_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/bitops.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- */
-
-#ifdef __KERNEL__
-#include <linux/compiler.h>
-#include <asm/system.h>
-/* For __swab32 */
-#include <asm/byteorder.h>
-
-static __inline__ void set_bit(int nr, volatile void * addr)
-{
- int mask;
- volatile unsigned int *a = addr;
- unsigned long flags;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- local_irq_save(flags);
- *a |= mask;
- local_irq_restore(flags);
-}
-
-static inline void __set_bit(int nr, void *addr)
-{
- int mask;
- unsigned int *a = addr;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- *a |= mask;
-}
-
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit() barrier()
-#define smp_mb__after_clear_bit() barrier()
-static inline void clear_bit(int nr, volatile unsigned long *a)
-{
- int mask;
- unsigned long flags;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- local_irq_save(flags);
- *a &= ~mask;
- local_irq_restore(flags);
-}
-
-static inline void __clear_bit(int nr, volatile unsigned long *a)
-{
- int mask;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- *a &= ~mask;
-}
-
-static __inline__ void change_bit(int nr, volatile void * addr)
-{
- int mask;
- volatile unsigned int *a = addr;
- unsigned long flags;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- local_irq_save(flags);
- *a ^= mask;
- local_irq_restore(flags);
-}
-
-static __inline__ void __change_bit(int nr, volatile void * addr)
-{
- int mask;
- volatile unsigned int *a = addr;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- *a ^= mask;
-}
-
-static __inline__ int test_and_set_bit(int nr, volatile void * addr)
-{
- int mask, retval;
- volatile unsigned int *a = addr;
- unsigned long flags;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- local_irq_save(flags);
- retval = (mask & *a) != 0;
- *a |= mask;
- local_irq_restore(flags);
-
- return retval;
-}
-
-static __inline__ int __test_and_set_bit(int nr, volatile void * addr)
-{
- int mask, retval;
- volatile unsigned int *a = addr;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- retval = (mask & *a) != 0;
- *a |= mask;
-
- return retval;
-}
-
-static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
-{
- int mask, retval;
- volatile unsigned int *a = addr;
- unsigned long flags;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- local_irq_save(flags);
- retval = (mask & *a) != 0;
- *a &= ~mask;
- local_irq_restore(flags);
-
- return retval;
-}
-
-static __inline__ int __test_and_clear_bit(int nr, volatile void * addr)
-{
- int mask, retval;
- volatile unsigned int *a = addr;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- retval = (mask & *a) != 0;
- *a &= ~mask;
-
- return retval;
-}
-
-static __inline__ int test_and_change_bit(int nr, volatile void * addr)
-{
- int mask, retval;
- volatile unsigned int *a = addr;
- unsigned long flags;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- local_irq_save(flags);
- retval = (mask & *a) != 0;
- *a ^= mask;
- local_irq_restore(flags);
-
- return retval;
-}
-
-static __inline__ int __test_and_change_bit(int nr, volatile void * addr)
-{
- int mask, retval;
- volatile unsigned int *a = addr;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- retval = (mask & *a) != 0;
- *a ^= mask;
-
- return retval;
-}
-
-static __inline__ int test_bit(int nr, const volatile void *addr)
-{
- return 1UL & (((const volatile unsigned int *) addr)[nr >> 5] >> (nr & 31));
-}
-
-static __inline__ unsigned long ffz(unsigned long word)
-{
- unsigned long result, __d2, __d3;
-
- __asm__("gettr tr0, %2\n\t"
- "pta $+32, tr0\n\t"
- "andi %1, 1, %3\n\t"
- "beq %3, r63, tr0\n\t"
- "pta $+4, tr0\n"
- "0:\n\t"
- "shlri.l %1, 1, %1\n\t"
- "addi %0, 1, %0\n\t"
- "andi %1, 1, %3\n\t"
- "beqi %3, 1, tr0\n"
- "1:\n\t"
- "ptabs %2, tr0\n\t"
- : "=r" (result), "=r" (word), "=r" (__d2), "=r" (__d3)
- : "0" (0L), "1" (word));
-
- return result;
-}
-
-/**
- * __ffs - find first bit in word
- * @word: The word to search
- *
- * Undefined if no bit exists, so code should check against 0 first.
- */
-static inline unsigned long __ffs(unsigned long word)
-{
- int r = 0;
-
- if (!word)
- return 0;
- if (!(word & 0xffff)) {
- word >>= 16;
- r += 16;
- }
- if (!(word & 0xff)) {
- word >>= 8;
- r += 8;
- }
- if (!(word & 0xf)) {
- word >>= 4;
- r += 4;
- }
- if (!(word & 3)) {
- word >>= 2;
- r += 2;
- }
- if (!(word & 1)) {
- word >>= 1;
- r += 1;
- }
- return r;
-}
-
-/**
- * find_next_bit - find the next set bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The maximum size to search
- */
-static inline unsigned long find_next_bit(const unsigned long *addr,
- unsigned long size, unsigned long offset)
-{
- unsigned int *p = ((unsigned int *) addr) + (offset >> 5);
- unsigned int result = offset & ~31UL;
- unsigned int tmp;
-
- if (offset >= size)
- return size;
- size -= result;
- offset &= 31UL;
- if (offset) {
- tmp = *p++;
- tmp &= ~0UL << offset;
- if (size < 32)
- goto found_first;
- if (tmp)
- goto found_middle;
- size -= 32;
- result += 32;
- }
- while (size >= 32) {
- if ((tmp = *p++) != 0)
- goto found_middle;
- result += 32;
- size -= 32;
- }
- if (!size)
- return result;
- tmp = *p;
-
-found_first:
- tmp &= ~0UL >> (32 - size);
- if (tmp == 0UL) /* Are any bits set? */
- return result + size; /* Nope. */
-found_middle:
- return result + __ffs(tmp);
-}
-
-/**
- * find_first_bit - find the first set bit in a memory region
- * @addr: The address to start the search at
- * @size: The maximum size to search
- *
- * Returns the bit-number of the first set bit, not the number of the byte
- * containing a bit.
- */
-#define find_first_bit(addr, size) \
- find_next_bit((addr), (size), 0)
-
-
-static inline int find_next_zero_bit(void *addr, int size, int offset)
-{
- unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
- unsigned long result = offset & ~31UL;
- unsigned long tmp;
-
- if (offset >= size)
- return size;
- size -= result;
- offset &= 31UL;
- if (offset) {
- tmp = *(p++);
- tmp |= ~0UL >> (32-offset);
- if (size < 32)
- goto found_first;
- if (~tmp)
- goto found_middle;
- size -= 32;
- result += 32;
- }
- while (size & ~31UL) {
- if (~(tmp = *(p++)))
- goto found_middle;
- result += 32;
- size -= 32;
- }
- if (!size)
- return result;
- tmp = *p;
-
-found_first:
- tmp |= ~0UL << size;
-found_middle:
- return result + ffz(tmp);
-}
-
-#define find_first_zero_bit(addr, size) \
- find_next_zero_bit((addr), (size), 0)
-
-/*
- * hweightN: returns the hamming weight (i.e. the number
- * of bits set) of a N-bit word
- */
-
-#define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
-
-/*
- * Every architecture must define this function. It's the fastest
- * way of searching a 140-bit bitmap where the first 100 bits are
- * unlikely to be set. It's guaranteed that at least one of the 140
- * bits is cleared.
- */
-
-static inline int sched_find_first_bit(unsigned long *b)
-{
- if (unlikely(b[0]))
- return __ffs(b[0]);
- if (unlikely(b[1]))
- return __ffs(b[1]) + 32;
- if (unlikely(b[2]))
- return __ffs(b[2]) + 64;
- if (b[3])
- return __ffs(b[3]) + 96;
- return __ffs(b[4]) + 128;
-}
-
-/*
- * ffs: find first bit set. This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
- */
-
-#define ffs(x) generic_ffs(x)
-
-/*
- * hweightN: returns the hamming weight (i.e. the number
- * of bits set) of a N-bit word
- */
-
-#define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
-
-#ifdef __LITTLE_ENDIAN__
-#define ext2_set_bit(nr, addr) test_and_set_bit((nr), (addr))
-#define ext2_clear_bit(nr, addr) test_and_clear_bit((nr), (addr))
-#define ext2_test_bit(nr, addr) test_bit((nr), (addr))
-#define ext2_find_first_zero_bit(addr, size) find_first_zero_bit((addr), (size))
-#define ext2_find_next_zero_bit(addr, size, offset) \
- find_next_zero_bit((addr), (size), (offset))
-#else
-static __inline__ int ext2_set_bit(int nr, volatile void * addr)
-{
- int mask, retval;
- unsigned long flags;
- volatile unsigned char *ADDR = (unsigned char *) addr;
-
- ADDR += nr >> 3;
- mask = 1 << (nr & 0x07);
- local_irq_save(flags);
- retval = (mask & *ADDR) != 0;
- *ADDR |= mask;
- local_irq_restore(flags);
- return retval;
-}
-
-static __inline__ int ext2_clear_bit(int nr, volatile void * addr)
-{
- int mask, retval;
- unsigned long flags;
- volatile unsigned char *ADDR = (unsigned char *) addr;
-
- ADDR += nr >> 3;
- mask = 1 << (nr & 0x07);
- local_irq_save(flags);
- retval = (mask & *ADDR) != 0;
- *ADDR &= ~mask;
- local_irq_restore(flags);
- return retval;
-}
-
-static __inline__ int ext2_test_bit(int nr, const volatile void * addr)
-{
- int mask;
- const volatile unsigned char *ADDR = (const unsigned char *) addr;
-
- ADDR += nr >> 3;
- mask = 1 << (nr & 0x07);
- return ((mask & *ADDR) != 0);
-}
-
-#define ext2_find_first_zero_bit(addr, size) \
- ext2_find_next_zero_bit((addr), (size), 0)
-
-static __inline__ unsigned long ext2_find_next_zero_bit(void *addr, unsigned long size, unsigned long offset)
-{
- unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
- unsigned long result = offset & ~31UL;
- unsigned long tmp;
-
- if (offset >= size)
- return size;
- size -= result;
- offset &= 31UL;
- if(offset) {
- /* We hold the little endian value in tmp, but then the
- * shift is illegal. So we could keep a big endian value
- * in tmp, like this:
- *
- * tmp = __swab32(*(p++));
- * tmp |= ~0UL >> (32-offset);
- *
- * but this would decrease preformance, so we change the
- * shift:
- */
- tmp = *(p++);
- tmp |= __swab32(~0UL >> (32-offset));
- if(size < 32)
- goto found_first;
- if(~tmp)
- goto found_middle;
- size -= 32;
- result += 32;
- }
- while(size & ~31UL) {
- if(~(tmp = *(p++)))
- goto found_middle;
- result += 32;
- size -= 32;
- }
- if(!size)
- return result;
- tmp = *p;
-
-found_first:
- /* tmp is little endian, so we would have to swab the shift,
- * see above. But then we have to swab tmp below for ffz, so
- * we might as well do this here.
- */
- return result + ffz(__swab32(tmp) | (~0UL << size));
-found_middle:
- return result + ffz(__swab32(tmp));
-}
-#endif
-
-#define ext2_set_bit_atomic(lock, nr, addr) \
- ({ \
- int ret; \
- spin_lock(lock); \
- ret = ext2_set_bit((nr), (addr)); \
- spin_unlock(lock); \
- ret; \
- })
-
-#define ext2_clear_bit_atomic(lock, nr, addr) \
- ({ \
- int ret; \
- spin_lock(lock); \
- ret = ext2_clear_bit((nr), (addr)); \
- spin_unlock(lock); \
- ret; \
- })
-
-/* Bitmap functions for the minix filesystem. */
-#define minix_test_and_set_bit(nr,addr) test_and_set_bit(nr,addr)
-#define minix_set_bit(nr,addr) set_bit(nr,addr)
-#define minix_test_and_clear_bit(nr,addr) test_and_clear_bit(nr,addr)
-#define minix_test_bit(nr,addr) test_bit(nr,addr)
-#define minix_find_first_zero_bit(addr,size) find_first_zero_bit(addr,size)
-
-#define ffs(x) generic_ffs(x)
-#define fls(x) generic_fls(x)
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_SH64_BITOPS_H */
+++ /dev/null
-#ifndef __ASM_SH64_BUG_H
-#define __ASM_SH64_BUG_H
-
-#include <asm-sh/bug.h>
-
-#endif /* __ASM_SH64_BUG_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_BUGS_H
-#define __ASM_SH64_BUGS_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/bugs.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-
-/*
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- * void check_bugs(void);
- */
-
-/*
- * I don't know of any Super-H bugs yet.
- */
-
-#include <asm/processor.h>
-
-static void __init check_bugs(void)
-{
- extern char *get_cpu_subtype(void);
- extern unsigned long loops_per_jiffy;
-
- cpu_data->loops_per_jiffy = loops_per_jiffy;
-
- printk("CPU: %s\n", get_cpu_subtype());
-}
-#endif /* __ASM_SH64_BUGS_H */
+++ /dev/null
-#ifndef __ASM_SH64_BYTEORDER_H
-#define __ASM_SH64_BYTEORDER_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/byteorder.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <asm/types.h>
-
-static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
-{
- __asm__("byterev %0, %0\n\t"
- "shari %0, 32, %0"
- : "=r" (x)
- : "0" (x));
- return x;
-}
-
-static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
-{
- __asm__("byterev %0, %0\n\t"
- "shari %0, 48, %0"
- : "=r" (x)
- : "0" (x));
- return x;
-}
-
-#define __arch__swab32(x) ___arch__swab32(x)
-#define __arch__swab16(x) ___arch__swab16(x)
-
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-# define __BYTEORDER_HAS_U64__
-# define __SWAB_64_THRU_32__
-#endif
-
-#ifdef __LITTLE_ENDIAN__
-#include <linux/byteorder/little_endian.h>
-#else
-#include <linux/byteorder/big_endian.h>
-#endif
-
-#endif /* __ASM_SH64_BYTEORDER_H */
+++ /dev/null
-#ifndef __ASM_SH64_CACHE_H
-#define __ASM_SH64_CACHE_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/cache.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- */
-#include <asm/cacheflush.h>
-
-#define L1_CACHE_SHIFT 5
-/* bytes per L1 cache line */
-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
-#define L1_CACHE_ALIGN_MASK (~(L1_CACHE_BYTES - 1))
-#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES - 1)) & L1_CACHE_ALIGN_MASK)
-#define L1_CACHE_SIZE_BYTES (L1_CACHE_BYTES << 10)
-/* Largest L1 which this arch supports */
-#define L1_CACHE_SHIFT_MAX 5
-
-#ifdef MODULE
-#define __cacheline_aligned __attribute__((__aligned__(L1_CACHE_BYTES)))
-#else
-#define __cacheline_aligned \
- __attribute__((__aligned__(L1_CACHE_BYTES), \
- __section__(".data.cacheline_aligned")))
-#endif
-
-/*
- * Control Registers.
- */
-#define ICCR_BASE 0x01600000 /* Instruction Cache Control Register */
-#define ICCR_REG0 0 /* Register 0 offset */
-#define ICCR_REG1 1 /* Register 1 offset */
-#define ICCR0 ICCR_BASE+ICCR_REG0
-#define ICCR1 ICCR_BASE+ICCR_REG1
-
-#define ICCR0_OFF 0x0 /* Set ICACHE off */
-#define ICCR0_ON 0x1 /* Set ICACHE on */
-#define ICCR0_ICI 0x2 /* Invalidate all in IC */
-
-#define ICCR1_NOLOCK 0x0 /* Set No Locking */
-
-#define OCCR_BASE 0x01E00000 /* Operand Cache Control Register */
-#define OCCR_REG0 0 /* Register 0 offset */
-#define OCCR_REG1 1 /* Register 1 offset */
-#define OCCR0 OCCR_BASE+OCCR_REG0
-#define OCCR1 OCCR_BASE+OCCR_REG1
-
-#define OCCR0_OFF 0x0 /* Set OCACHE off */
-#define OCCR0_ON 0x1 /* Set OCACHE on */
-#define OCCR0_OCI 0x2 /* Invalidate all in OC */
-#define OCCR0_WT 0x4 /* Set OCACHE in WT Mode */
-#define OCCR0_WB 0x0 /* Set OCACHE in WB Mode */
-
-#define OCCR1_NOLOCK 0x0 /* Set No Locking */
-
-
-/*
- * SH-5
- * A bit of description here, for neff=32.
- *
- * |<--- tag (19 bits) --->|
- * +-----------------------------+-----------------+------+----------+------+
- * | | | ways |set index |offset|
- * +-----------------------------+-----------------+------+----------+------+
- * ^ 2 bits 8 bits 5 bits
- * +- Bit 31
- *
- * Cacheline size is based on offset: 5 bits = 32 bytes per line
- * A cache line is identified by a tag + set but OCACHETAG/ICACHETAG
- * have a broader space for registers. These are outlined by
- * CACHE_?C_*_STEP below.
- *
- */
-
-/* Valid and Dirty bits */
-#define SH_CACHE_VALID (1LL<<0)
-#define SH_CACHE_UPDATED (1LL<<57)
-
-/* Cache flags */
-#define SH_CACHE_MODE_WT (1LL<<0)
-#define SH_CACHE_MODE_WB (1LL<<1)
-
-#ifndef __ASSEMBLY__
-
-/*
- * Cache information structure.
- *
- * Defined for both I and D cache, per-processor.
- */
-struct cache_info {
- unsigned int ways;
- unsigned int sets;
- unsigned int linesz;
-
- unsigned int way_shift;
- unsigned int entry_shift;
- unsigned int set_shift;
- unsigned int way_step_shift;
- unsigned int asid_shift;
-
- unsigned int way_ofs;
-
- unsigned int asid_mask;
- unsigned int idx_mask;
- unsigned int epn_mask;
-
- unsigned long flags;
-};
-
-#endif /* __ASSEMBLY__ */
-
-/* Instruction cache */
-#define CACHE_IC_ADDRESS_ARRAY 0x01000000
-
-/* Operand Cache */
-#define CACHE_OC_ADDRESS_ARRAY 0x01800000
-
-/* These declarations relate to cache 'synonyms' in the operand cache. A
- 'synonym' occurs where effective address bits overlap between those used for
- indexing the cache sets and those passed to the MMU for translation. In the
- case of SH5-101 & SH5-103, only bit 12 is affected for 4k pages. */
-
-#define CACHE_OC_N_SYNBITS 1 /* Number of synonym bits */
-#define CACHE_OC_SYN_SHIFT 12
-/* Mask to select synonym bit(s) */
-#define CACHE_OC_SYN_MASK (((1UL<<CACHE_OC_N_SYNBITS)-1)<<CACHE_OC_SYN_SHIFT)
-
-
-/*
- * Instruction cache can't be invalidated based on physical addresses.
- * No Instruction Cache defines required, then.
- */
-
-#endif /* __ASM_SH64_CACHE_H */
+++ /dev/null
-#ifndef __ASM_SH64_CACHEFLUSH_H
-#define __ASM_SH64_CACHEFLUSH_H
-
-#ifndef __ASSEMBLY__
-
-#include <asm/page.h>
-
-struct vm_area_struct;
-struct page;
-struct mm_struct;
-
-extern void flush_cache_all(void);
-extern void flush_cache_mm(struct mm_struct *mm);
-extern void flush_cache_sigtramp(unsigned long start, unsigned long end);
-extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end);
-extern void flush_cache_page(struct vm_area_struct *vma, unsigned long addr);
-extern void flush_dcache_page(struct page *pg);
-extern void flush_icache_range(unsigned long start, unsigned long end);
-extern void flush_icache_user_range(struct vm_area_struct *vma,
- struct page *page, unsigned long addr,
- int len);
-
-#define flush_dcache_mmap_lock(mapping) do { } while (0)
-#define flush_dcache_mmap_unlock(mapping) do { } while (0)
-
-#define flush_cache_vmap(start, end) flush_cache_all()
-#define flush_cache_vunmap(start, end) flush_cache_all()
-
-#define flush_icache_page(vma, page) do { } while (0)
-
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
-do { memcpy(dst, src, len); \
- flush_icache_user_range(vma, page, vaddr, len); \
-} while (0)
-
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
- memcpy(dst, src, len)
-
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __ASM_SH64_CACHEFLUSH_H */
-
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/cayman.h
- *
- * Cayman definitions
- *
- * Global defintions for the SH5 Cayman board
- *
- * Copyright (C) 2002 Stuart Menefy
- */
-
-
-/* Setup for the SMSC FDC37C935 / LAN91C100FD */
-#define SMSC_IRQ IRQ_IRL1
-
-/* Setup for PCI Bus 2, which transmits interrupts via the EPLD */
-#define PCI2_IRQ IRQ_IRL3
+++ /dev/null
-#ifndef __ASM_SH64_CHECKSUM_H
-#define __ASM_SH64_CHECKSUM_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/checksum.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <asm/registers.h>
-
-/*
- * computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit)
- *
- * returns a 32-bit number suitable for feeding into itself
- * or csum_tcpudp_magic
- *
- * this function must be called with even lengths, except
- * for the last fragment, which may be odd
- *
- * it's best to have buff aligned on a 32-bit boundary
- */
-asmlinkage unsigned int csum_partial(const unsigned char *buff, int len,
- unsigned int sum);
-
-/*
- * Note: when you get a NULL pointer exception here this means someone
- * passed in an incorrect kernel address to one of these functions.
- *
- * If you use these functions directly please don't forget the
- * verify_area().
- */
-
-
-unsigned int csum_partial_copy_nocheck(const char *src, char *dst, int len,
- unsigned int sum);
-
-unsigned int csum_partial_copy_from_user(const char *src, char *dst,
- int len, int sum, int *err_ptr);
-
-/*
- * These are the old (and unsafe) way of doing checksums, a warning message will be
- * printed if they are used and an exeption occurs.
- *
- * these functions should go away after some time.
- */
-
-#define csum_partial_copy_fromuser csum_partial_copy
-
-unsigned int csum_partial_copy(const char *src, char *dst, int len,
- unsigned int sum);
-
-static inline unsigned short csum_fold(unsigned int sum)
-{
- sum = (sum & 0xffff) + (sum >> 16);
- sum = (sum & 0xffff) + (sum >> 16);
- return ~(sum);
-}
-
-unsigned short ip_fast_csum(unsigned char * iph, unsigned int ihl);
-
-unsigned long csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr,
- unsigned short len, unsigned short proto,
- unsigned int sum);
-
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-static inline unsigned short int csum_tcpudp_magic(unsigned long saddr,
- unsigned long daddr,
- unsigned short len,
- unsigned short proto,
- unsigned int sum)
-{
- return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
-}
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-static inline unsigned short ip_compute_csum(unsigned char * buff, int len)
-{
- return csum_fold(csum_partial(buff, len, 0));
-}
-
-#endif /* __ASM_SH64_CHECKSUM_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_CPUMASK_H
-#define __ASM_SH64_CPUMASK_H
-
-#include <asm-generic/cpumask.h>
-
-#endif /* __ASM_SH64_CPUMASK_H */
+++ /dev/null
-#ifndef __ASM_SH64_CURRENT_H
-#define __ASM_SH64_CURRENT_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/current.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-
-#include <linux/thread_info.h>
-
-struct task_struct;
-
-static __inline__ struct task_struct * get_current(void)
-{
- return current_thread_info()->task;
-}
-
-#define current get_current()
-
-#endif /* __ASM_SH64_CURRENT_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_DELAY_H
-#define __ASM_SH64_DELAY_H
-
-extern void __delay(int loops);
-extern void __udelay(unsigned long long usecs, unsigned long lpj);
-extern void __ndelay(unsigned long long nsecs, unsigned long lpj);
-extern void udelay(unsigned long usecs);
-extern void ndelay(unsigned long nsecs);
-
-#endif /* __ASM_SH64_DELAY_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_DIV64_H
-#define __ASM_SH64_DIV64_H
-
-#include <asm-generic/div64.h>
-
-#endif /* __ASM_SH64_DIV64_H */
+++ /dev/null
-#ifndef __ASM_SH_DMA_MAPPING_H
-#define __ASM_SH_DMA_MAPPING_H
-
-#include <linux/config.h>
-#include <linux/mm.h>
-#include <linux/device.h>
-#include <asm/scatterlist.h>
-#include <asm/io.h>
-
-struct pci_dev;
-extern void *consistent_alloc(struct pci_dev *hwdev, size_t size,
- dma_addr_t *dma_handle);
-extern void consistent_free(struct pci_dev *hwdev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
-
-#define dma_supported(dev, mask) (1)
-
-static inline int dma_set_mask(struct device *dev, u64 mask)
-{
- if (!dev->dma_mask || !dma_supported(dev, mask))
- return -EIO;
-
- *dev->dma_mask = mask;
-
- return 0;
-}
-
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, int flag)
-{
- return consistent_alloc(NULL, size, dma_handle);
-}
-
-static inline void dma_free_coherent(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle)
-{
- consistent_free(NULL, size, vaddr, dma_handle);
-}
-
-static inline void dma_cache_sync(void *vaddr, size_t size,
- enum dma_data_direction dir)
-{
- dma_cache_wback_inv((unsigned long)vaddr, size);
-}
-
-static inline dma_addr_t dma_map_single(struct device *dev,
- void *ptr, size_t size,
- enum dma_data_direction dir)
-{
-#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- if (dev->bus == &pci_bus_type)
- return virt_to_bus(ptr);
-#endif
- dma_cache_sync(ptr, size, dir);
-
- return virt_to_bus(ptr);
-}
-
-#define dma_unmap_single(dev, addr, size, dir) do { } while (0)
-
-static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction dir)
-{
- int i;
-
- for (i = 0; i < nents; i++) {
-#if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- dma_cache_sync(page_address(sg[i].page) + sg[i].offset,
- sg[i].length, dir);
-#endif
- sg[i].dma_address = page_to_phys(sg[i].page) + sg[i].offset;
- }
-
- return nents;
-}
-
-#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0)
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction dir)
-{
- return dma_map_single(dev, page_address(page) + offset, size, dir);
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
- size_t size, enum dma_data_direction dir)
-{
- dma_unmap_single(dev, dma_address, size, dir);
-}
-
-static inline void dma_sync_single(struct device *dev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction dir)
-{
-#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- if (dev->bus == &pci_bus_type)
- return;
-#endif
- dma_cache_sync(bus_to_virt(dma_handle), size, dir);
-}
-
-static inline void dma_sync_single_range(struct device *dev,
- dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction dir)
-{
-#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- if (dev->bus == &pci_bus_type)
- return;
-#endif
- dma_cache_sync(bus_to_virt(dma_handle) + offset, size, dir);
-}
-
-static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir)
-{
- int i;
-
- for (i = 0; i < nelems; i++) {
-#if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- dma_cache_sync(page_address(sg[i].page) + sg[i].offset,
- sg[i].length, dir);
-#endif
- sg[i].dma_address = page_to_phys(sg[i].page) + sg[i].offset;
- }
-}
-
-static inline void dma_sync_single_for_cpu(struct device *dev,
- dma_addr_t dma_handle, size_t size,
- enum dma_data_direction dir)
- __attribute__ ((alias("dma_sync_single")));
-
-static inline void dma_sync_single_for_device(struct device *dev,
- dma_addr_t dma_handle, size_t size,
- enum dma_data_direction dir)
- __attribute__ ((alias("dma_sync_single")));
-
-static inline void dma_sync_sg_for_cpu(struct device *dev,
- struct scatterlist *sg, int nelems,
- enum dma_data_direction dir)
- __attribute__ ((alias("dma_sync_sg")));
-
-static inline void dma_sync_sg_for_device(struct device *dev,
- struct scatterlist *sg, int nelems,
- enum dma_data_direction dir)
- __attribute__ ((alias("dma_sync_sg")));
-
-static inline int dma_get_cache_alignment(void)
-{
- /*
- * Each processor family will define its own L1_CACHE_SHIFT,
- * L1_CACHE_BYTES wraps to this, so this is always safe.
- */
- return L1_CACHE_BYTES;
-}
-
-static inline int dma_mapping_error(dma_addr_t dma_addr)
-{
- return dma_addr == 0;
-}
-
-#endif /* __ASM_SH_DMA_MAPPING_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_DMA_H
-#define __ASM_SH64_DMA_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/dma.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-
-#include <linux/mm.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-
-#define MAX_DMA_CHANNELS 4
-
-/*
- * SH5 can DMA in any memory area.
- *
- * The static definition is dodgy because it should limit
- * the highest DMA-able address based on the actual
- * Physical memory available. This is actually performed
- * at run time in defining the memory allowed to DMA_ZONE.
- */
-#define MAX_DMA_ADDRESS ~(NPHYS_MASK)
-
-#define DMA_MODE_READ 0
-#define DMA_MODE_WRITE 1
-
-#ifdef CONFIG_PCI
-extern int isa_dma_bridge_buggy;
-#else
-#define isa_dma_bridge_buggy (0)
-#endif
-
-#endif /* __ASM_SH64_DMA_H */
+++ /dev/null
-#ifndef __ASM_SH64_ELF_H
-#define __ASM_SH64_ELF_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/elf.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-/*
- * ELF register definitions..
- */
-
-#include <asm/ptrace.h>
-#include <asm/user.h>
-#include <asm/byteorder.h>
-
-typedef unsigned long elf_greg_t;
-
-#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-typedef struct user_fpu_struct elf_fpregset_t;
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) ( (x)->e_machine == EM_SH )
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS ELFCLASS32
-#ifdef __LITTLE_ENDIAN__
-#define ELF_DATA ELFDATA2LSB
-#else
-#define ELF_DATA ELFDATA2MSB
-#endif
-#define ELF_ARCH EM_SH
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE 4096
-
-/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
- use of this is to invoke "./ld.so someprog" to test out a new version of
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
-
-
-#define ELF_CORE_COPY_REGS(_dest,_regs) \
- memcpy((char *) &_dest, (char *) _regs, \
- sizeof(struct pt_regs));
-
-/* This yields a mask that user programs can use to figure out what
- instruction set this CPU supports. This could be done in user space,
- but it's not easy, and we've already done it here. */
-
-#define ELF_HWCAP (0)
-
-/* This yields a string that ld.so will use to load implementation
- specific libraries for optimization. This is more specific in
- intent than poking at uname or /proc/cpuinfo.
-
- For the moment, we have only optimizations for the Intel generations,
- but that could change... */
-
-#define ELF_PLATFORM (NULL)
-
-#define ELF_PLAT_INIT(_r, load_addr) \
- do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
- _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
- _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
- _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
- _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
- _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
- _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
- _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
- _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
- _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
- _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
- _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
- _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
- _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
- _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
- _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
- _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
- _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
- _r->sr = SR_FD | SR_MMU; } while (0)
-
-#ifdef __KERNEL__
-#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
-#endif
-
-#endif /* __ASM_SH64_ELF_H */
+++ /dev/null
-#ifndef __ASM_SH64_ERRNO_H
-#define __ASM_SH64_ERRNO_H
-
-#include <asm-generic/errno.h>
-
-#endif /* __ASM_SH64_ERRNO_H */
+++ /dev/null
-#ifndef __ASM_SH64_FCNTL_H
-#define __ASM_SH64_FCNTL_H
-
-#include <asm-sh/fcntl.h>
-
-#endif /* __ASM_SH64_FCNTL_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_HARDIRQ_H
-#define __ASM_SH64_HARDIRQ_H
-
-#include <asm-sh/hardirq.h>
-
-#endif /* __ASM_SH64_HARDIRQ_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_HARDWARE_H
-#define __ASM_SH64_HARDWARE_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/hardware.h
- *
- * Copyright (C) 2002 Stuart Menefy
- * Copyright (C) 2003 Paul Mundt
- *
- * Defitions of the locations of registers in the physical address space.
- */
-
-#define PHYS_PERIPHERAL_BLOCK 0x09000000
-#define PHYS_DMAC_BLOCK 0x0e000000
-#define PHYS_PCI_BLOCK 0x60000000
-
-#ifndef __ASSEMBLY__
-#include <linux/types.h>
-#include <asm/io.h>
-
-struct vcr_info {
- u8 perr_flags; /* P-port Error flags */
- u8 merr_flags; /* Module Error flags */
- u16 mod_vers; /* Module Version */
- u16 mod_id; /* Module ID */
- u8 bot_mb; /* Bottom Memory block */
- u8 top_mb; /* Top Memory block */
-};
-
-static inline struct vcr_info sh64_get_vcr_info(unsigned long base)
-{
- unsigned long long tmp;
-
- tmp = sh64_in64(base);
-
- return *((struct vcr_info *)&tmp);
-}
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __ASM_SH64_HARDWARE_H */
+++ /dev/null
-#ifndef __ASM_SH64_HDREG_H
-#define __ASM_SH64_HDREG_H
-
-#include <asm-generic/hdreg.h>
-
-#endif /* __ASM_SH64_HDREG_H */
+++ /dev/null
-#ifndef __ASM_SH64_HW_IRQ_H
-#define __ASM_SH64_HW_IRQ_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/hw_irq.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-static __inline__ void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) { /* Nothing to do */ }
-
-#endif /* __ASM_SH64_HW_IRQ_H */
+++ /dev/null
-/*
- * linux/include/asm-sh64/ide.h
- *
- * Copyright (C) 1994-1996 Linus Torvalds & authors
- *
- * sh64 version by Richard Curnow & Paul Mundt
- */
-
-/*
- * This file contains the sh64 architecture specific IDE code.
- */
-
-#ifndef __ASM_SH64_IDE_H
-#define __ASM_SH64_IDE_H
-
-#ifdef __KERNEL__
-
-#include <linux/config.h>
-
-#ifndef MAX_HWIFS
-#define MAX_HWIFS CONFIG_IDE_MAX_HWIFS
-#endif
-
-#define ide_default_io_ctl(base) (0)
-
-#include <asm-generic/ide_iops.h>
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_SH64_IDE_H */
+++ /dev/null
-#ifndef __ASM_SH64_IO_H
-#define __ASM_SH64_IO_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/io.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-
-/*
- * Convention:
- * read{b,w,l}/write{b,w,l} are for PCI,
- * while in{b,w,l}/out{b,w,l} are for ISA
- * These may (will) be platform specific function.
- *
- * In addition, we have
- * ctrl_in{b,w,l}/ctrl_out{b,w,l} for SuperH specific I/O.
- * which are processor specific. Address should be the result of
- * onchip_remap();
- */
-
-#include <asm/cache.h>
-#include <asm/system.h>
-#include <asm/page.h>
-
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
-#define page_to_bus page_to_phys
-
-/*
- * Nothing overly special here.. instead of doing the same thing
- * over and over again, we just define a set of sh64_in/out functions
- * with an implicit size. The traditional read{b,w,l}/write{b,w,l}
- * mess is wrapped to this, as are the SH-specific ctrl_in/out routines.
- */
-static inline unsigned char sh64_in8(unsigned long addr)
-{
- return *(volatile unsigned char *)addr;
-}
-
-static inline unsigned short sh64_in16(unsigned long addr)
-{
- return *(volatile unsigned short *)addr;
-}
-
-static inline unsigned long sh64_in32(unsigned long addr)
-{
- return *(volatile unsigned long *)addr;
-}
-
-static inline unsigned long long sh64_in64(unsigned long addr)
-{
- return *(volatile unsigned long long *)addr;
-}
-
-static inline void sh64_out8(unsigned char b, unsigned long addr)
-{
- *(volatile unsigned char *)addr = b;
- wmb();
-}
-
-static inline void sh64_out16(unsigned short b, unsigned long addr)
-{
- *(volatile unsigned short *)addr = b;
- wmb();
-}
-
-static inline void sh64_out32(unsigned long b, unsigned long addr)
-{
- *(volatile unsigned long *)addr = b;
- wmb();
-}
-
-static inline void sh64_out64(unsigned long long b, unsigned long addr)
-{
- *(volatile unsigned long long *)addr = b;
- wmb();
-}
-
-#define readb(addr) sh64_in8(addr)
-#define readw(addr) sh64_in16(addr)
-#define readl(addr) sh64_in32(addr)
-
-#define writeb(b, addr) sh64_out8(b, addr)
-#define writew(b, addr) sh64_out16(b, addr)
-#define writel(b, addr) sh64_out32(b, addr)
-
-#define ctrl_inb(addr) sh64_in8(addr)
-#define ctrl_inw(addr) sh64_in16(addr)
-#define ctrl_inl(addr) sh64_in32(addr)
-
-#define ctrl_outb(b, addr) sh64_out8(b, addr)
-#define ctrl_outw(b, addr) sh64_out16(b, addr)
-#define ctrl_outl(b, addr) sh64_out32(b, addr)
-
-unsigned long inb(unsigned long port);
-unsigned long inw(unsigned long port);
-unsigned long inl(unsigned long port);
-void outb(unsigned long value, unsigned long port);
-void outw(unsigned long value, unsigned long port);
-void outl(unsigned long value, unsigned long port);
-
-#ifdef __KERNEL__
-
-#ifdef CONFIG_SH_CAYMAN
-extern unsigned long smsc_superio_virt;
-#endif
-#ifdef CONFIG_PCI
-extern unsigned long pciio_virt;
-#endif
-
-#define IO_SPACE_LIMIT 0xffffffff
-
-/*
- * Change virtual addresses to physical addresses and vv.
- * These are trivial on the 1:1 Linux/SuperH mapping
- */
-extern __inline__ unsigned long virt_to_phys(volatile void * address)
-{
- return __pa(address);
-}
-
-extern __inline__ void * phys_to_virt(unsigned long address)
-{
- return __va(address);
-}
-
-extern void * __ioremap(unsigned long phys_addr, unsigned long size,
- unsigned long flags);
-
-extern __inline__ void * ioremap(unsigned long phys_addr, unsigned long size)
-{
- return __ioremap(phys_addr, size, 1);
-}
-
-extern __inline__ void * ioremap_nocache (unsigned long phys_addr, unsigned long size)
-{
- return __ioremap(phys_addr, size, 0);
-}
-
-extern void iounmap(void *addr);
-
-unsigned long onchip_remap(unsigned long addr, unsigned long size, const char* name);
-extern void onchip_unmap(unsigned long vaddr);
-
-static __inline__ int check_signature(unsigned long io_addr,
- const unsigned char *signature, int length)
-{
- int retval = 0;
- do {
- if (readb(io_addr) != *signature)
- goto out;
- io_addr++;
- signature++;
- length--;
- } while (length);
- retval = 1;
-out:
- return retval;
-}
-
-/*
- * The caches on some architectures aren't dma-coherent and have need to
- * handle this in software. There are three types of operations that
- * can be applied to dma buffers.
- *
- * - dma_cache_wback_inv(start, size) makes caches and RAM coherent by
- * writing the content of the caches back to memory, if necessary.
- * The function also invalidates the affected part of the caches as
- * necessary before DMA transfers from outside to memory.
- * - dma_cache_inv(start, size) invalidates the affected parts of the
- * caches. Dirty lines of the caches may be written back or simply
- * be discarded. This operation is necessary before dma operations
- * to the memory.
- * - dma_cache_wback(start, size) writes back any dirty lines but does
- * not invalidate the cache. This can be used before DMA reads from
- * memory,
- */
-
-static __inline__ void dma_cache_wback_inv (unsigned long start, unsigned long size)
-{
- unsigned long s = start & L1_CACHE_ALIGN_MASK;
- unsigned long e = (start + size) & L1_CACHE_ALIGN_MASK;
-
- for (; s <= e; s += L1_CACHE_BYTES)
- asm volatile ("ocbp %0, 0" : : "r" (s));
-}
-
-static __inline__ void dma_cache_inv (unsigned long start, unsigned long size)
-{
- // Note that caller has to be careful with overzealous
- // invalidation should there be partial cache lines at the extremities
- // of the specified range
- unsigned long s = start & L1_CACHE_ALIGN_MASK;
- unsigned long e = (start + size) & L1_CACHE_ALIGN_MASK;
-
- for (; s <= e; s += L1_CACHE_BYTES)
- asm volatile ("ocbi %0, 0" : : "r" (s));
-}
-
-static __inline__ void dma_cache_wback (unsigned long start, unsigned long size)
-{
- unsigned long s = start & L1_CACHE_ALIGN_MASK;
- unsigned long e = (start + size) & L1_CACHE_ALIGN_MASK;
-
- for (; s <= e; s += L1_CACHE_BYTES)
- asm volatile ("ocbwb %0, 0" : : "r" (s));
-}
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_SH64_IO_H */
+++ /dev/null
-#ifndef __ASM_SH64_IOCTL_H
-#define __ASM_SH64_IOCTL_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/ioctl.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * linux/ioctl.h for Linux by H.H. Bergman.
- *
- */
-
-/* ioctl command encoding: 32 bits total, command in lower 16 bits,
- * size of the parameter structure in the lower 14 bits of the
- * upper 16 bits.
- * Encoding the size of the parameter structure in the ioctl request
- * is useful for catching programs compiled with old versions
- * and to avoid overwriting user space outside the user buffer area.
- * The highest 2 bits are reserved for indicating the ``access mode''.
- * NOTE: This limits the max parameter size to 16kB -1 !
- */
-
-/*
- * The following is for compatibility across the various Linux
- * platforms. The i386 ioctl numbering scheme doesn't really enforce
- * a type field. De facto, however, the top 8 bits of the lower 16
- * bits are indeed used as a type field, so we might just as well make
- * this explicit here. Please be sure to use the decoding macros
- * below from now on.
- */
-#define _IOC_NRBITS 8
-#define _IOC_TYPEBITS 8
-#define _IOC_SIZEBITS 14
-#define _IOC_DIRBITS 2
-
-#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1)
-#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1)
-#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1)
-#define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1)
-
-#define _IOC_NRSHIFT 0
-#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS)
-#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS)
-#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS)
-
-/*
- * Direction bits.
- */
-#define _IOC_NONE 0U
-#define _IOC_WRITE 1U
-#define _IOC_READ 2U
-
-#define _IOC(dir,type,nr,size) \
- (((dir) << _IOC_DIRSHIFT) | \
- ((type) << _IOC_TYPESHIFT) | \
- ((nr) << _IOC_NRSHIFT) | \
- ((size) << _IOC_SIZESHIFT))
-
-/* used to create numbers */
-#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0)
-#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size))
-#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size))
-#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
-
-/* used to decode ioctl numbers.. */
-#define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
-#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
-#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
-#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
-
-/* ...and for the drivers/sound files... */
-
-#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT)
-#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT)
-#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
-#define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT)
-#define IOCSIZE_SHIFT (_IOC_SIZESHIFT)
-
-#endif /* __ASM_SH64_IOCTL_H */
+++ /dev/null
-#ifndef __ASM_SH64_IOCTLS_H
-#define __ASM_SH64_IOCTLS_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/ioctls.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <asm/ioctl.h>
-
-#define FIOCLEX _IO('f', 1)
-#define FIONCLEX _IO('f', 2)
-#define FIOASYNC _IOW('f', 125, int)
-#define FIONBIO _IOW('f', 126, int)
-#define FIONREAD _IOR('f', 127, int)
-#define TIOCINQ FIONREAD
-#define FIOQSIZE _IOR('f', 128, loff_t)
-
-#define TCGETS 0x5401
-#define TCSETS 0x5402
-#define TCSETSW 0x5403
-#define TCSETSF 0x5404
-
-#define TCGETA _IOR('t', 23, struct termio)
-#define TCSETA _IOW('t', 24, struct termio)
-#define TCSETAW _IOW('t', 25, struct termio)
-#define TCSETAF _IOW('t', 28, struct termio)
-
-#define TCSBRK _IO('t', 29)
-#define TCXONC _IO('t', 30)
-#define TCFLSH _IO('t', 31)
-
-#define TIOCSWINSZ _IOW('t', 103, struct winsize)
-#define TIOCGWINSZ _IOR('t', 104, struct winsize)
-#define TIOCSTART _IO('t', 110) /* start output, like ^Q */
-#define TIOCSTOP _IO('t', 111) /* stop output, like ^S */
-#define TIOCOUTQ _IOR('t', 115, int) /* output queue size */
-
-#define TIOCSPGRP _IOW('t', 118, int)
-#define TIOCGPGRP _IOR('t', 119, int)
-
-#define TIOCEXCL _IO('T', 12) /* 0x540C */
-#define TIOCNXCL _IO('T', 13) /* 0x540D */
-#define TIOCSCTTY _IO('T', 14) /* 0x540E */
-
-#define TIOCSTI _IOW('T', 18, char) /* 0x5412 */
-#define TIOCMGET _IOR('T', 21, unsigned int) /* 0x5415 */
-#define TIOCMBIS _IOW('T', 22, unsigned int) /* 0x5416 */
-#define TIOCMBIC _IOW('T', 23, unsigned int) /* 0x5417 */
-#define TIOCMSET _IOW('T', 24, unsigned int) /* 0x5418 */
-# define TIOCM_LE 0x001
-# define TIOCM_DTR 0x002
-# define TIOCM_RTS 0x004
-# define TIOCM_ST 0x008
-# define TIOCM_SR 0x010
-# define TIOCM_CTS 0x020
-# define TIOCM_CAR 0x040
-# define TIOCM_RNG 0x080
-# define TIOCM_DSR 0x100
-# define TIOCM_CD TIOCM_CAR
-# define TIOCM_RI TIOCM_RNG
-
-#define TIOCGSOFTCAR _IOR('T', 25, unsigned int) /* 0x5419 */
-#define TIOCSSOFTCAR _IOW('T', 26, unsigned int) /* 0x541A */
-#define TIOCLINUX _IOW('T', 28, char) /* 0x541C */
-#define TIOCCONS _IO('T', 29) /* 0x541D */
-#define TIOCGSERIAL _IOR('T', 30, struct serial_struct) /* 0x541E */
-#define TIOCSSERIAL _IOW('T', 31, struct serial_struct) /* 0x541F */
-#define TIOCPKT _IOW('T', 32, int) /* 0x5420 */
-# define TIOCPKT_DATA 0
-# define TIOCPKT_FLUSHREAD 1
-# define TIOCPKT_FLUSHWRITE 2
-# define TIOCPKT_STOP 4
-# define TIOCPKT_START 8
-# define TIOCPKT_NOSTOP 16
-# define TIOCPKT_DOSTOP 32
-
-
-#define TIOCNOTTY _IO('T', 34) /* 0x5422 */
-#define TIOCSETD _IOW('T', 35, int) /* 0x5423 */
-#define TIOCGETD _IOR('T', 36, int) /* 0x5424 */
-#define TCSBRKP _IOW('T', 37, int) /* 0x5425 */ /* Needed for POSIX tcsendbreak() */
-#define TIOCTTYGSTRUCT _IOR('T', 38, struct tty_struct) /* 0x5426 */ /* For debugging only */
-#define TIOCSBRK _IO('T', 39) /* 0x5427 */ /* BSD compatibility */
-#define TIOCCBRK _IO('T', 40) /* 0x5428 */ /* BSD compatibility */
-#define TIOCGSID _IOR('T', 41, pid_t) /* 0x5429 */ /* Return the session ID of FD */
-#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
-#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
-
-#define TIOCSERCONFIG _IO('T', 83) /* 0x5453 */
-#define TIOCSERGWILD _IOR('T', 84, int) /* 0x5454 */
-#define TIOCSERSWILD _IOW('T', 85, int) /* 0x5455 */
-#define TIOCGLCKTRMIOS 0x5456
-#define TIOCSLCKTRMIOS 0x5457
-#define TIOCSERGSTRUCT _IOR('T', 88, struct async_struct) /* 0x5458 */ /* For debugging only */
-#define TIOCSERGETLSR _IOR('T', 89, unsigned int) /* 0x5459 */ /* Get line status register */
- /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
-# define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
-#define TIOCSERGETMULTI _IOR('T', 90, struct serial_multiport_struct) /* 0x545A */ /* Get multiport config */
-#define TIOCSERSETMULTI _IOW('T', 91, struct serial_multiport_struct) /* 0x545B */ /* Set multiport config */
-
-#define TIOCMIWAIT _IO('T', 92) /* 0x545C */ /* wait for a change on serial input line(s) */
-#define TIOCGICOUNT _IOR('T', 93, struct async_icount) /* 0x545D */ /* read serial port inline interrupt counts */
-
-#endif /* __ASM_SH64_IOCTLS_H */
+++ /dev/null
-#ifndef __ASM_SH64_IPC_H
-#define __ASM_SH64_IPC_H
-
-#include <asm-sh/ipc.h>
-
-#endif /* __ASM_SH64_IPC_H */
+++ /dev/null
-#ifndef __ASM_SH64_IPCBUF_H__
-#define __ASM_SH64_IPCBUF_H__
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/ipcbuf.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-/*
- * The ipc64_perm structure for i386 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
- __kernel_key_t key;
- __kernel_uid32_t uid;
- __kernel_gid32_t gid;
- __kernel_uid32_t cuid;
- __kernel_gid32_t cgid;
- __kernel_mode_t mode;
- unsigned short __pad1;
- unsigned short seq;
- unsigned short __pad2;
- unsigned long __unused1;
- unsigned long __unused2;
-};
-
-#endif /* __ASM_SH64_IPCBUF_H__ */
+++ /dev/null
-#ifndef __ASM_SH64_IRQ_H
-#define __ASM_SH64_IRQ_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/irq.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <linux/config.h>
-
-/*
- * Encoded IRQs are not considered worth to be supported.
- * Main reason is that there's no per-encoded-interrupt
- * enable/disable mechanism (as there was in SH3/4).
- * An all enabled/all disabled is worth only if there's
- * a cascaded IC to disable/enable/ack on. Until such
- * IC is available there's no such support.
- *
- * Presumably Encoded IRQs may use extra IRQs beyond 64,
- * below. Some logic must be added to cope with IRQ_IRL?
- * in an exclusive way.
- *
- * Priorities are set at Platform level, when IRQ_IRL0-3
- * are set to 0 Encoding is allowed. Otherwise it's not
- * allowed.
- */
-
-/* Independent IRQs */
-#define IRQ_IRL0 0
-#define IRQ_IRL1 1
-#define IRQ_IRL2 2
-#define IRQ_IRL3 3
-
-#define IRQ_INTA 4
-#define IRQ_INTB 5
-#define IRQ_INTC 6
-#define IRQ_INTD 7
-
-#define IRQ_SERR 12
-#define IRQ_ERR 13
-#define IRQ_PWR3 14
-#define IRQ_PWR2 15
-#define IRQ_PWR1 16
-#define IRQ_PWR0 17
-
-#define IRQ_DMTE0 18
-#define IRQ_DMTE1 19
-#define IRQ_DMTE2 20
-#define IRQ_DMTE3 21
-#define IRQ_DAERR 22
-
-#define IRQ_TUNI0 32
-#define IRQ_TUNI1 33
-#define IRQ_TUNI2 34
-#define IRQ_TICPI2 35
-
-#define IRQ_ATI 36
-#define IRQ_PRI 37
-#define IRQ_CUI 38
-
-#define IRQ_ERI 39
-#define IRQ_RXI 40
-#define IRQ_BRI 41
-#define IRQ_TXI 42
-
-#define IRQ_ITI 63
-
-#define NR_INTC_IRQS 64
-
-#ifdef CONFIG_SH_CAYMAN
-#define NR_EXT_IRQS 32
-#define START_EXT_IRQS 64
-
-/* PCI bus 2 uses encoded external interrupts on the Cayman board */
-#define IRQ_P2INTA (START_EXT_IRQS + (3*8) + 0)
-#define IRQ_P2INTB (START_EXT_IRQS + (3*8) + 1)
-#define IRQ_P2INTC (START_EXT_IRQS + (3*8) + 2)
-#define IRQ_P2INTD (START_EXT_IRQS + (3*8) + 3)
-
-#define START_EXT_IRQS 64
-
-#define I8042_KBD_IRQ (START_EXT_IRQS + 2)
-#define I8042_AUX_IRQ (START_EXT_IRQS + 6)
-
-#else
-#define NR_EXT_IRQS 0
-#endif
-
-#define NR_IRQS (NR_INTC_IRQS+NR_EXT_IRQS)
-
-
-/* Default IRQs, fixed */
-#define TIMER_IRQ IRQ_TUNI0
-#define RTC_IRQ IRQ_CUI
-
-/* Default Priorities, Platform may choose differently */
-#define NO_PRIORITY 0 /* Disabled */
-#define TIMER_PRIORITY 2
-#define RTC_PRIORITY TIMER_PRIORITY
-#define SCIF_PRIORITY 3
-#define INTD_PRIORITY 3
-#define IRL3_PRIORITY 4
-#define INTC_PRIORITY 6
-#define IRL2_PRIORITY 7
-#define INTB_PRIORITY 9
-#define IRL1_PRIORITY 10
-#define INTA_PRIORITY 12
-#define IRL0_PRIORITY 13
-#define TOP_PRIORITY 15
-
-extern void disable_irq(unsigned int);
-extern void disable_irq_nosync(unsigned int);
-extern void enable_irq(unsigned int);
-
-extern int intc_evt_to_irq[(0xE20/0x20)+1];
-int intc_irq_describe(char* p, int irq);
-
-#define irq_canonicalize(irq) (irq)
-
-#ifdef CONFIG_SH_CAYMAN
-int cayman_irq_demux(int evt);
-int cayman_irq_describe(char* p, int irq);
-#define irq_demux(x) cayman_irq_demux(x)
-#define irq_describe(p, x) cayman_irq_describe(p, x)
-#else
-#define irq_demux(x) (intc_evt_to_irq[x])
-#define irq_describe(p, x) intc_irq_describe(p, x)
-#endif
-
-/*
- * Function for "on chip support modules".
- */
-
-/*
- * SH-5 supports Priority based interrupts only.
- * Interrupt priorities are defined at platform level.
- */
-#define set_ipr_data(a, b, c, d)
-#define make_ipr_irq(a)
-#define make_imask_irq(a)
-
-#endif /* __ASM_SH64_IRQ_H */
+++ /dev/null
-/*
- * linux/include/asm-shmedia/keyboard.h
- *
- * Copied from i386 version:
- * Created 3 Nov 1996 by Geert Uytterhoeven
- */
-
-/*
- * This file contains the i386 architecture specific keyboard definitions
- */
-
-#ifndef __ASM_SH64_KEYBOARD_H
-#define __ASM_SH64_KEYBOARD_H
-
-#ifdef __KERNEL__
-
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <asm/io.h>
-
-#ifdef CONFIG_SH_CAYMAN
-#define KEYBOARD_IRQ (START_EXT_IRQS + 2) /* SMSC SuperIO IRQ 1 */
-#endif
-#define DISABLE_KBD_DURING_INTERRUPTS 0
-
-extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
-extern int pckbd_getkeycode(unsigned int scancode);
-extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,
- char raw_mode);
-extern char pckbd_unexpected_up(unsigned char keycode);
-extern void pckbd_leds(unsigned char leds);
-extern void pckbd_init_hw(void);
-extern unsigned char pckbd_sysrq_xlate[128];
-
-#define kbd_setkeycode pckbd_setkeycode
-#define kbd_getkeycode pckbd_getkeycode
-#define kbd_translate pckbd_translate
-#define kbd_unexpected_up pckbd_unexpected_up
-#define kbd_leds pckbd_leds
-#define kbd_init_hw pckbd_init_hw
-#define kbd_sysrq_xlate pckbd_sysrq_xlate
-
-#define SYSRQ_KEY 0x54
-
-/* resource allocation */
-#define kbd_request_region()
-#define kbd_request_irq(handler) request_irq(KEYBOARD_IRQ, handler, 0, \
- "keyboard", NULL)
-
-/* How to access the keyboard macros on this platform. */
-#define kbd_read_input() inb(KBD_DATA_REG)
-#define kbd_read_status() inb(KBD_STATUS_REG)
-#define kbd_write_output(val) outb(val, KBD_DATA_REG)
-#define kbd_write_command(val) outb(val, KBD_CNTL_REG)
-
-/* Some stoneage hardware needs delays after some operations. */
-#define kbd_pause() do { } while(0)
-
-/*
- * Machine specific bits for the PS/2 driver
- */
-
-#ifdef CONFIG_SH_CAYMAN
-#define AUX_IRQ (START_EXT_IRQS + 6) /* SMSC SuperIO IRQ12 */
-#endif
-
-#define aux_request_irq(hand, dev_id) \
- request_irq(AUX_IRQ, hand, SA_SHIRQ, "PS/2 Mouse", dev_id)
-
-#define aux_free_irq(dev_id) free_irq(AUX_IRQ, dev_id)
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_SH64_KEYBOARD_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_KMAP_TYPES_H
-#define __ASM_SH64_KMAP_TYPES_H
-
-#include <asm-sh/kmap_types.h>
-
-#endif /* __ASM_SH64_KMAP_TYPES_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_LINKAGE_H
-#define __ASM_SH64_LINKAGE_H
-
-#include <asm-sh/linkage.h>
-
-#endif /* __ASM_SH64_LINKAGE_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_LOCAL_H
-#define __ASM_SH64_LOCAL_H
-
-#include <asm-generic/local.h>
-
-#endif /* __ASM_SH64_LOCAL_H */
-
+++ /dev/null
-/*
- * linux/include/asm-sh64/mc146818rtc.h
- *
-*/
-
-/* For now, an empty place-holder to get IDE to compile. */
-
+++ /dev/null
-#ifndef __ASM_SH64_MMAN_H
-#define __ASM_SH64_MMAN_H
-
-#include <asm-sh/mman.h>
-
-#endif /* __ASM_SH64_MMAN_H */
+++ /dev/null
-#ifndef __MMU_H
-#define __MMU_H
-
-/* Default "unsigned long" context */
-typedef unsigned long mm_context_t;
-
-#endif
+++ /dev/null
-#ifndef __ASM_SH64_MMU_CONTEXT_H
-#define __ASM_SH64_MMU_CONTEXT_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/mmu_context.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- * ASID handling idea taken from MIPS implementation.
- *
- */
-
-#ifndef __ASSEMBLY__
-
-/*
- * Cache of MMU context last used.
- *
- * The MMU "context" consists of two things:
- * (a) TLB cache version (or cycle, top 24 bits of mmu_context_cache)
- * (b) ASID (Address Space IDentifier, bottom 8 bits of mmu_context_cache)
- */
-extern unsigned long mmu_context_cache;
-
-#include <linux/config.h>
-#include <asm/page.h>
-
-
-/* Current mm's pgd */
-extern pgd_t *mmu_pdtp_cache;
-
-#define SR_ASID_MASK 0xffffffffff00ffffULL
-#define SR_ASID_SHIFT 16
-
-#define MMU_CONTEXT_ASID_MASK 0x000000ff
-#define MMU_CONTEXT_VERSION_MASK 0xffffff00
-#define MMU_CONTEXT_FIRST_VERSION 0x00000100
-#define NO_CONTEXT 0
-
-/* ASID is 8-bit value, so it can't be 0x100 */
-#define MMU_NO_ASID 0x100
-
-
-/*
- * Virtual Page Number mask
- */
-#define MMU_VPN_MASK 0xfffff000
-
-extern __inline__ void
-get_new_mmu_context(struct mm_struct *mm)
-{
- extern void flush_tlb_all(void);
- extern void flush_cache_all(void);
-
- unsigned long mc = ++mmu_context_cache;
-
- if (!(mc & MMU_CONTEXT_ASID_MASK)) {
- /* We exhaust ASID of this version.
- Flush all TLB and start new cycle. */
- flush_tlb_all();
- /* We have to flush all caches as ASIDs are
- used in cache */
- flush_cache_all();
- /* Fix version if needed.
- Note that we avoid version #0/asid #0 to distingush NO_CONTEXT. */
- if (!mc)
- mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION;
- }
- mm->context = mc;
-}
-
-/*
- * Get MMU context if needed.
- */
-static __inline__ void
-get_mmu_context(struct mm_struct *mm)
-{
- if (mm) {
- unsigned long mc = mmu_context_cache;
- /* Check if we have old version of context.
- If it's old, we need to get new context with new version. */
- if ((mm->context ^ mc) & MMU_CONTEXT_VERSION_MASK)
- get_new_mmu_context(mm);
- }
-}
-
-/*
- * Initialize the context related info for a new mm_struct
- * instance.
- */
-static inline int init_new_context(struct task_struct *tsk,
- struct mm_struct *mm)
-{
- mm->context = NO_CONTEXT;
-
- return 0;
-}
-
-/*
- * Destroy context related info for an mm_struct that is about
- * to be put to rest.
- */
-static inline void destroy_context(struct mm_struct *mm)
-{
- extern void flush_tlb_mm(struct mm_struct *mm);
-
- /* Well, at least free TLB entries */
- flush_tlb_mm(mm);
-}
-
-#endif /* __ASSEMBLY__ */
-
-/* Common defines */
-#define TLB_STEP 0x00000010
-#define TLB_PTEH 0x00000000
-#define TLB_PTEL 0x00000008
-
-/* PTEH defines */
-#define PTEH_ASID_SHIFT 2
-#define PTEH_VALID 0x0000000000000001
-#define PTEH_SHARED 0x0000000000000002
-#define PTEH_MATCH_ASID 0x00000000000003ff
-
-#ifndef __ASSEMBLY__
-/* This has to be a common function because the next location to fill
- * information is shared. */
-extern void __do_tlb_refill(unsigned long address, unsigned long long is_text_not_data, pte_t *pte);
-
-/* Profiling counter. */
-#ifdef CONFIG_SH64_PROC_TLB
-extern unsigned long long calls_to_do_fast_page_fault;
-#endif
-
-static inline unsigned long get_asid(void)
-{
- unsigned long long sr;
-
- asm volatile ("getcon " __SR ", %0\n\t"
- : "=r" (sr));
-
- sr = (sr >> SR_ASID_SHIFT) & MMU_CONTEXT_ASID_MASK;
- return (unsigned long) sr;
-}
-
-/* Set ASID into SR */
-static inline void set_asid(unsigned long asid)
-{
- unsigned long long sr, pc;
-
- asm volatile ("getcon " __SR ", %0" : "=r" (sr));
-
- sr = (sr & SR_ASID_MASK) | (asid << SR_ASID_SHIFT);
-
- /*
- * It is possible that this function may be inlined and so to avoid
- * the assembler reporting duplicate symbols we make use of the gas trick
- * of generating symbols using numerics and forward reference.
- */
- asm volatile ("movi 1, %1\n\t"
- "shlli %1, 28, %1\n\t"
- "or %0, %1, %1\n\t"
- "putcon %1, " __SR "\n\t"
- "putcon %0, " __SSR "\n\t"
- "movi 1f, %1\n\t"
- "ori %1, 1 , %1\n\t"
- "putcon %1, " __SPC "\n\t"
- "rte\n"
- "1:\n\t"
- : "=r" (sr), "=r" (pc) : "0" (sr));
-}
-
-/*
- * After we have set current->mm to a new value, this activates
- * the context for the new mm so we see the new mappings.
- */
-static __inline__ void activate_context(struct mm_struct *mm)
-{
- get_mmu_context(mm);
- set_asid(mm->context & MMU_CONTEXT_ASID_MASK);
-}
-
-
-static __inline__ void switch_mm(struct mm_struct *prev,
- struct mm_struct *next,
- struct task_struct *tsk)
-{
- if (prev != next) {
- mmu_pdtp_cache = next->pgd;
- activate_context(next);
- }
-}
-
-#define deactivate_mm(tsk,mm) do { } while (0)
-
-#define activate_mm(prev, next) \
- switch_mm((prev),(next),NULL)
-
-static inline void
-enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-}
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __ASM_SH64_MMU_CONTEXT_H */
+++ /dev/null
-#ifndef __ASM_SH64_MODULE_H
-#define __ASM_SH64_MODULE_H
-/*
- * This file contains the SH architecture specific module code.
- */
-
-#define module_map(x) vmalloc(x)
-#define module_unmap(x) vfree(x)
-#define module_arch_init(x) (0)
-#define arch_init_modules(x) do { } while (0)
-
-#endif /* __ASM_SH64_MODULE_H */
+++ /dev/null
-#ifndef __ASM_SH64_MSGBUF_H
-#define __ASM_SH64_MSGBUF_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/msgbuf.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-/*
- * The msqid64_ds structure for i386 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct msqid64_ds {
- struct ipc64_perm msg_perm;
- __kernel_time_t msg_stime; /* last msgsnd time */
- unsigned long __unused1;
- __kernel_time_t msg_rtime; /* last msgrcv time */
- unsigned long __unused2;
- __kernel_time_t msg_ctime; /* last change time */
- unsigned long __unused3;
- unsigned long msg_cbytes; /* current number of bytes on queue */
- unsigned long msg_qnum; /* number of messages in queue */
- unsigned long msg_qbytes; /* max number of bytes on queue */
- __kernel_pid_t msg_lspid; /* pid of last msgsnd */
- __kernel_pid_t msg_lrpid; /* last receive pid */
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-#endif /* __ASM_SH64_MSGBUF_H */
+++ /dev/null
-#ifndef __ASM_SH64_NAMEI_H
-#define __ASM_SH64_NAMEI_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/namei.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * Included from linux/fs/namei.c
- *
- */
-
-/* This dummy routine maybe changed to something useful
- * for /usr/gnemul/ emulation stuff.
- * Look at asm-sparc/namei.h for details.
- */
-
-#define __emul_prefix() NULL
-
-#endif /* __ASM_SH64_NAMEI_H */
+++ /dev/null
-#ifndef __ASM_SH64_PAGE_H
-#define __ASM_SH64_PAGE_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/page.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- * benedict.gaster@superh.com 19th, 24th July 2002.
- *
- * Modified to take account of enabling for D-CACHE support.
- *
- */
-
-#include <linux/config.h>
-
-/* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT 12
-#ifdef __ASSEMBLY__
-#define PAGE_SIZE 4096
-#else
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
-#endif
-#define PAGE_MASK (~(PAGE_SIZE-1))
-#define PTE_MASK PAGE_MASK
-
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#define HPAGE_SHIFT 16
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
-#define HPAGE_SHIFT 20
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512MB)
-#define HPAGE_SHIFT 29
-#endif
-
-#ifdef CONFIG_HUGETLB_PAGE
-#define HPAGE_SIZE (1UL << HPAGE_SHIFT)
-#define HPAGE_MASK (~(HPAGE_SIZE-1))
-#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT)
-#endif
-
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-
-extern struct page *mem_map;
-extern void sh64_page_clear(void *page);
-extern void sh64_page_copy(void *from, void *to);
-
-#define clear_page(page) sh64_page_clear(page)
-#define copy_page(to,from) sh64_page_copy(from, to)
-
-#if defined(CONFIG_DCACHE_DISABLED)
-
-#define clear_user_page(page, vaddr, pg) clear_page(page)
-#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
-
-#else
-
-extern void clear_user_page(void *to, unsigned long address, struct page *pg);
-extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg);
-
-#endif /* defined(CONFIG_DCACHE_DISABLED) */
-
-/*
- * These are used to make use of C type-checking..
- */
-typedef struct { unsigned long long pte; } pte_t;
-typedef struct { unsigned long pmd; } pmd_t;
-typedef struct { unsigned long pgd; } pgd_t;
-typedef struct { unsigned long pgprot; } pgprot_t;
-
-#define pte_val(x) ((x).pte)
-#define pmd_val(x) ((x).pmd)
-#define pgd_val(x) ((x).pgd)
-#define pgprot_val(x) ((x).pgprot)
-
-#define __pte(x) ((pte_t) { (x) } )
-#define __pmd(x) ((pmd_t) { (x) } )
-#define __pgd(x) ((pgd_t) { (x) } )
-#define __pgprot(x) ((pgprot_t) { (x) } )
-
-#endif /* !__ASSEMBLY__ */
-
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
-/*
- * Kconfig defined.
- */
-#define __MEMORY_START (CONFIG_MEMORY_START)
-#define PAGE_OFFSET (CONFIG_CACHED_MEMORY_OFFSET)
-
-#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET)
-#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
-#define MAP_NR(addr) ((__pa(addr)-__MEMORY_START) >> PAGE_SHIFT)
-#define VALID_PAGE(page) ((page - mem_map) < max_mapnr)
-
-#define phys_to_page(phys) (mem_map + (((phys) - __MEMORY_START) >> PAGE_SHIFT))
-#define page_to_phys(page) (((page - mem_map) << PAGE_SHIFT) + __MEMORY_START)
-
-/* PFN start number, because of __MEMORY_START */
-#define PFN_START (__MEMORY_START >> PAGE_SHIFT)
-
-#define pfn_to_page(pfn) (mem_map + (pfn) - PFN_START)
-#define page_to_pfn(page) ((unsigned long)((page) - mem_map) + PFN_START)
-#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
-#define pfn_valid(pfn) (((pfn) - PFN_START) < max_mapnr)
-#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
-
-#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-
-#ifndef __ASSEMBLY__
-
-/* Pure 2^n version of get_order */
-extern __inline__ int get_order(unsigned long size)
-{
- int order;
-
- size = (size-1) >> (PAGE_SHIFT-1);
- order = -1;
- do {
- size >>= 1;
- order++;
- } while (size);
- return order;
-}
-
-#endif
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_SH64_PAGE_H */
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/param.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-#ifndef __ASM_SH64_PARAM_H
-#define __ASM_SH64_PARAM_H
-
-#include <linux/config.h>
-
-#ifdef __KERNEL__
-# ifdef CONFIG_SH_WDT
-# define HZ 1000 /* Needed for high-res WOVF */
-# else
-# define HZ 100
-# endif
-# define USER_HZ 100 /* User interfaces are in "ticks" */
-# define CLOCKS_PER_SEC (USER_HZ) /* frequency at which times() counts */
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
-#define EXEC_PAGESIZE 4096
-
-#ifndef NGROUPS
-#define NGROUPS 32
-#endif
-
-#ifndef NOGROUP
-#define NOGROUP (-1)
-#endif
-
-#define MAXHOSTNAMELEN 64 /* max length of hostname */
-
-#endif /* __ASM_SH64_PARAM_H */
+++ /dev/null
-#ifndef __ASM_SH64_PCI_H
-#define __ASM_SH64_PCI_H
-
-#ifdef __KERNEL__
-
-#include <linux/dma-mapping.h>
-
-/* Can be used to override the logic in pci_scan_bus for skipping
- already-configured bus numbers - to be used for buggy BIOSes
- or architectures with incomplete PCI setup by the loader */
-
-#define pcibios_assign_all_busses() 1
-
-/*
- * These are currently the correct values for the STM overdrive board
- * We need some way of setting this on a board specific way, it will
- * not be the same on other boards I think
- */
-#if defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
-#define PCIBIOS_MIN_IO 0x2000
-#define PCIBIOS_MIN_MEM 0x40000000
-#endif
-
-extern void pcibios_set_master(struct pci_dev *dev);
-
-/*
- * Set penalize isa irq function
- */
-static inline void pcibios_penalize_isa_irq(int irq)
-{
- /* We don't do dynamic PCI IRQ allocation */
-}
-
-/* Dynamic DMA mapping stuff.
- * SuperH has everything mapped statically like x86.
- */
-
-/* The PCI address space does equal the physical memory
- * address space. The networking and block device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS (1)
-
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <asm/scatterlist.h>
-#include <linux/string.h>
-#include <asm/io.h>
-
-/* pci_unmap_{single,page} being a nop depends upon the
- * configuration.
- */
-#ifdef CONFIG_SH_PCIDMA_NONCOHERENT
-#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
- dma_addr_t ADDR_NAME;
-#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
- __u32 LEN_NAME;
-#define pci_unmap_addr(PTR, ADDR_NAME) \
- ((PTR)->ADDR_NAME)
-#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
- (((PTR)->ADDR_NAME) = (VAL))
-#define pci_unmap_len(PTR, LEN_NAME) \
- ((PTR)->LEN_NAME)
-#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
- (((PTR)->LEN_NAME) = (VAL))
-#else
-#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
-#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
-#define pci_unmap_addr(PTR, ADDR_NAME) (0)
-#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
-#define pci_unmap_len(PTR, LEN_NAME) (0)
-#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
-#endif
-
-/* Not supporting more than 32-bit PCI bus addresses now, but
- * must satisfy references to this function. Change if needed.
- */
-#define pci_dac_dma_supported(pci_dev, mask) (0)
-
-/* These macros should be used after a pci_map_sg call has been done
- * to get bus addresses of each of the SG entries and their lengths.
- * You should only work with the number of sg entries pci_map_sg
- * returns, or alternatively stop on the first sg_dma_len(sg) which
- * is 0.
- */
-#define sg_dma_address(sg) ((sg)->dma_address)
-#define sg_dma_len(sg) ((sg)->length)
-
-/* Board-specific fixup routines. */
-extern void pcibios_fixup(void);
-extern void pcibios_fixup_irqs(void);
-
-#ifdef CONFIG_PCI_AUTO
-extern int pciauto_assign_resources(int busno, struct pci_channel *hose);
-#endif
-
-static inline void pcibios_add_platform_entries(struct pci_dev *dev)
-{
-}
-
-#endif /* __KERNEL__ */
-
-/* generic pci stuff */
-#include <asm-generic/pci.h>
-
-/* generic DMA-mapping stuff */
-#include <asm-generic/pci-dma-compat.h>
-
-#endif /* __ASM_SH64_PCI_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_PERCPU
-#define __ASM_SH64_PERCPU
-
-#include <asm-generic/percpu.h>
-
-#endif /* __ASM_SH64_PERCPU */
+++ /dev/null
-#ifndef __ASM_SH64_PGALLOC_H
-#define __ASM_SH64_PGALLOC_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/pgalloc.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- */
-
-#include <asm/processor.h>
-#include <linux/threads.h>
-#include <linux/mm.h>
-
-#define pgd_quicklist (current_cpu_data.pgd_quick)
-#define pmd_quicklist (current_cpu_data.pmd_quick)
-#define pte_quicklist (current_cpu_data.pte_quick)
-#define pgtable_cache_size (current_cpu_data.pgtable_cache_sz)
-
-static inline void pgd_init(unsigned long page)
-{
- unsigned long *pgd = (unsigned long *)page;
- extern pte_t empty_bad_pte_table[PTRS_PER_PTE];
- int i;
-
- for (i = 0; i < USER_PTRS_PER_PGD; i++)
- pgd[i] = (unsigned long)empty_bad_pte_table;
-}
-
-/*
- * Allocate and free page tables. The xxx_kernel() versions are
- * used to allocate a kernel page table - this turns on ASN bits
- * if any.
- */
-
-extern __inline__ pgd_t *get_pgd_slow(void)
-{
- unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t));
- pgd_t *ret = (pgd_t *)kmalloc(pgd_size, GFP_KERNEL);
- return ret;
-}
-
-extern __inline__ pgd_t *get_pgd_fast(void)
-{
- unsigned long *ret;
-
- if ((ret = pgd_quicklist) != NULL) {
- pgd_quicklist = (unsigned long *)(*ret);
- ret[0] = 0;
- pgtable_cache_size--;
- } else
- ret = (unsigned long *)get_pgd_slow();
-
- if (ret) {
- memset(ret, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
- }
- return (pgd_t *)ret;
-}
-
-extern __inline__ void free_pgd_fast(pgd_t *pgd)
-{
- *(unsigned long *)pgd = (unsigned long) pgd_quicklist;
- pgd_quicklist = (unsigned long *) pgd;
- pgtable_cache_size++;
-}
-
-extern __inline__ void free_pgd_slow(pgd_t *pgd)
-{
- kfree((void *)pgd);
-}
-
-extern pte_t *get_pte_slow(pmd_t *pmd, unsigned long address_preadjusted);
-extern pte_t *get_pte_kernel_slow(pmd_t *pmd, unsigned long address_preadjusted);
-
-extern __inline__ pte_t *get_pte_fast(void)
-{
- unsigned long *ret;
-
- if((ret = (unsigned long *)pte_quicklist) != NULL) {
- pte_quicklist = (unsigned long *)(*ret);
- ret[0] = ret[1];
- pgtable_cache_size--;
- }
- return (pte_t *)ret;
-}
-
-extern __inline__ void free_pte_fast(pte_t *pte)
-{
- *(unsigned long *)pte = (unsigned long) pte_quicklist;
- pte_quicklist = (unsigned long *) pte;
- pgtable_cache_size++;
-}
-
-static inline void pte_free_kernel(pte_t *pte)
-{
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct page *pte)
-{
- __free_page(pte);
-}
-
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
- unsigned long address)
-{
- pte_t *pte;
-
- pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT);
- if (pte)
- clear_page(pte);
-
- return pte;
-}
-
-static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
-{
- struct page *pte;
-
- pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
- if (pte)
- clear_page(page_address(pte));
-
- return pte;
-}
-
-#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
-
-/*
- * allocating and freeing a pmd is trivial: the 1-entry pmd is
- * inside the pgd, so has no extra memory associated with it.
- */
-
-#if defined(CONFIG_SH64_PGTABLE_2_LEVEL)
-
-#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
-#define pmd_free(x) do { } while (0)
-#define pgd_populate(mm, pmd, pte) BUG()
-#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
-#define __pmd_free_tlb(tlb,pmd) do { } while (0)
-
-#elif defined(CONFIG_SH64_PGTABLE_3_LEVEL)
-
-static __inline__ pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
-{
- pmd_t *pmd;
- pmd = (pmd_t *) __get_free_page(GFP_KERNEL|__GFP_REPEAT);
- if (pmd)
- clear_page(pmd);
- return pmd;
-}
-
-static __inline__ void pmd_free(pmd_t *pmd)
-{
- free_page((unsigned long) pmd);
-}
-
-#define pgd_populate(mm, pgd, pmd) pgd_set(pgd, pmd)
-#define __pmd_free_tlb(tlb,pmd) pmd_free(pmd)
-
-#else
-#error "No defined page table size"
-#endif
-
-#define check_pgt_cache() do { } while (0)
-#define pgd_free(pgd) free_pgd_slow(pgd)
-#define pgd_alloc(mm) get_pgd_fast()
-
-extern int do_check_pgt_cache(int, int);
-
-extern inline void set_pgdir(unsigned long address, pgd_t entry)
-{
- struct task_struct * p;
- pgd_t *pgd;
-
- read_lock(&tasklist_lock);
- for_each_process(p) {
- if (!p->mm)
- continue;
- *pgd_offset(p->mm,address) = entry;
- }
- read_unlock(&tasklist_lock);
- for (pgd = (pgd_t *)pgd_quicklist; pgd; pgd = (pgd_t *)*(unsigned long *)pgd)
- pgd[address >> PGDIR_SHIFT] = entry;
-}
-
-#define pmd_populate_kernel(mm, pmd, pte) \
- set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) (pte)))
-
-static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
- struct page *pte)
-{
- set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) page_address (pte)));
-}
-
-#endif /* __ASM_SH64_PGALLOC_H */
+++ /dev/null
-#ifndef __ASM_SH64_PGTABLE_H
-#define __ASM_SH64_PGTABLE_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/pgtable.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- * This file contains the functions and defines necessary to modify and use
- * the SuperH page table tree.
- */
-
-#ifndef __ASSEMBLY__
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <linux/threads.h>
-#include <linux/config.h>
-
-extern void paging_init(void);
-
-/* We provide our own get_unmapped_area to avoid cache synonym issue */
-#define HAVE_ARCH_UNMAPPED_AREA
-
-/*
- * Basically we have the same two-level (which is the logical three level
- * Linux page table layout folded) page tables as the i386.
- */
-
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern unsigned char empty_zero_page[PAGE_SIZE];
-#define ZERO_PAGE(vaddr) (mem_map + MAP_NR(empty_zero_page))
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * NEFF and NPHYS related defines.
- * FIXME : These need to be model-dependent. For now this is OK, SH5-101 and SH5-103
- * implement 32 bits effective and 32 bits physical. But future implementations may
- * extend beyond this.
- */
-#define NEFF 32
-#define NEFF_SIGN (1LL << (NEFF - 1))
-#define NEFF_MASK (-1LL << NEFF)
-
-#define NPHYS 32
-#define NPHYS_SIGN (1LL << (NPHYS - 1))
-#define NPHYS_MASK (-1LL << NPHYS)
-
-/* Typically 2-level is sufficient up to 32 bits of virtual address space, beyond
- that 3-level would be appropriate. */
-#if defined(CONFIG_SH64_PGTABLE_2_LEVEL)
-/* For 4k pages, this contains 512 entries, i.e. 9 bits worth of address. */
-#define PTRS_PER_PTE ((1<<PAGE_SHIFT)/sizeof(unsigned long long))
-#define PTE_MAGNITUDE 3 /* sizeof(unsigned long long) magnit. */
-#define PTE_SHIFT PAGE_SHIFT
-#define PTE_BITS (PAGE_SHIFT - PTE_MAGNITUDE)
-
-/* top level: PMD. */
-#define PGDIR_SHIFT (PTE_SHIFT + PTE_BITS)
-#define PGD_BITS (NEFF - PGDIR_SHIFT)
-#define PTRS_PER_PGD (1<<PGD_BITS)
-
-/* middle level: PMD. This doesn't do anything for the 2-level case. */
-#define PTRS_PER_PMD (1)
-
-#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-#define PMD_SHIFT PGDIR_SHIFT
-#define PMD_SIZE PGDIR_SIZE
-#define PMD_MASK PGDIR_MASK
-
-#elif defined(CONFIG_SH64_PGTABLE_3_LEVEL)
-/*
- * three-level asymmetric paging structure: PGD is top level.
- * The asymmetry comes from 32-bit pointers and 64-bit PTEs.
- */
-/* bottom level: PTE. It's 9 bits = 512 pointers */
-#define PTRS_PER_PTE ((1<<PAGE_SHIFT)/sizeof(unsigned long long))
-#define PTE_MAGNITUDE 3 /* sizeof(unsigned long long) magnit. */
-#define PTE_SHIFT PAGE_SHIFT
-#define PTE_BITS (PAGE_SHIFT - PTE_MAGNITUDE)
-
-/* middle level: PMD. It's 10 bits = 1024 pointers */
-#define PTRS_PER_PMD ((1<<PAGE_SHIFT)/sizeof(unsigned long long *))
-#define PMD_MAGNITUDE 2 /* sizeof(unsigned long long *) magnit. */
-#define PMD_SHIFT (PTE_SHIFT + PTE_BITS)
-#define PMD_BITS (PAGE_SHIFT - PMD_MAGNITUDE)
-
-/* top level: PMD. It's 1 bit = 2 pointers */
-#define PGDIR_SHIFT (PMD_SHIFT + PMD_BITS)
-#define PGD_BITS (NEFF - PGDIR_SHIFT)
-#define PTRS_PER_PGD (1<<PGD_BITS)
-
-#define PMD_SIZE (1UL << PMD_SHIFT)
-#define PMD_MASK (~(PMD_SIZE-1))
-#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-
-#else
-#error "No defined number of page table levels"
-#endif
-
-/*
- * Error outputs.
- */
-#define pte_ERROR(e) \
- printk("%s:%d: bad pte %016Lx.\n", __FILE__, __LINE__, pte_val(e))
-#define pmd_ERROR(e) \
- printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
-#define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
-
-/*
- * Table setting routines. Used within arch/mm only.
- */
-#define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval)
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
-
-static __inline__ void set_pte(pte_t *pteptr, pte_t pteval)
-{
- unsigned long long x = ((unsigned long long) pteval.pte);
- unsigned long long *xp = (unsigned long long *) pteptr;
- /*
- * Sign-extend based on NPHYS.
- */
- *(xp) = (x & NPHYS_SIGN) ? (x | NPHYS_MASK) : x;
-}
-
-static __inline__ void pmd_set(pmd_t *pmdp,pte_t *ptep)
-{
- pmd_val(*pmdp) = (unsigned long) ptep;
-}
-
-/*
- * PGD defines. Top level.
- */
-
-/* To find an entry in a generic PGD. */
-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
-#define __pgd_offset(address) pgd_index(address)
-#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
-
-/* To find an entry in a kernel PGD. */
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-
-/*
- * PGD level access routines.
- *
- * Note1:
- * There's no need to use physical addresses since the tree walk is all
- * in performed in software, until the PTE translation.
- *
- * Note 2:
- * A PGD entry can be uninitialized (_PGD_UNUSED), generically bad,
- * clear (_PGD_EMPTY), present. When present, lower 3 nibbles contain
- * _KERNPG_TABLE. Being a kernel virtual pointer also bit 31 must
- * be 1. Assuming an arbitrary clear value of bit 31 set to 0 and
- * lower 3 nibbles set to 0xFFF (_PGD_EMPTY) any other value is a
- * bad pgd that must be notified via printk().
- *
- */
-#define _PGD_EMPTY 0x0
-
-#if defined(CONFIG_SH64_PGTABLE_2_LEVEL)
-static inline int pgd_none(pgd_t pgd) { return 0; }
-static inline int pgd_bad(pgd_t pgd) { return 0; }
-#define pgd_present(pgd) ((pgd_val(pgd) & _PAGE_PRESENT) ? 1 : 0)
-#define pgd_clear(xx) do { } while(0)
-
-#elif defined(CONFIG_SH64_PGTABLE_3_LEVEL)
-#define pgd_present(pgd_entry) (1)
-#define pgd_none(pgd_entry) (pgd_val((pgd_entry)) == _PGD_EMPTY)
-/* TODO: Think later about what a useful definition of 'bad' would be now. */
-#define pgd_bad(pgd_entry) (0)
-#define pgd_clear(pgd_entry_p) (set_pgd((pgd_entry_p), __pgd(_PGD_EMPTY)))
-
-#endif
-
-
-#define pgd_page(pgd_entry) ((unsigned long) (pgd_val(pgd_entry) & PAGE_MASK))
-
-/*
- * PMD defines. Middle level.
- */
-
-/* PGD to PMD dereferencing */
-#if defined(CONFIG_SH64_PGTABLE_2_LEVEL)
-static inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address)
-{
- return (pmd_t *) dir;
-}
-#elif defined(CONFIG_SH64_PGTABLE_3_LEVEL)
-#define __pmd_offset(address) \
- (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
-#define pmd_offset(dir, addr) \
- ((pmd_t *) ((pgd_val(*(dir))) & PAGE_MASK) + __pmd_offset((addr)))
-#endif
-
-/*
- * PMD level access routines. Same notes as above.
- */
-#define _PMD_EMPTY 0x0
-/* Either the PMD is empty or present, it's not paged out */
-#define pmd_present(pmd_entry) (pmd_val(pmd_entry) & _PAGE_PRESENT)
-#define pmd_clear(pmd_entry_p) (set_pmd((pmd_entry_p), __pmd(_PMD_EMPTY)))
-#define pmd_none(pmd_entry) (pmd_val((pmd_entry)) == _PMD_EMPTY)
-#define pmd_bad(pmd_entry) ((pmd_val(pmd_entry) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
-
-#define pmd_page_kernel(pmd_entry) \
- ((unsigned long) __va(pmd_val(pmd_entry) & PAGE_MASK))
-
-#define pmd_page(pmd) \
- (virt_to_page(pmd_val(pmd)))
-
-/* PMD to PTE dereferencing */
-#define pte_index(address) \
- ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-
-#define pte_offset_kernel(dir, addr) \
- ((pte_t *) ((pmd_val(*(dir))) & PAGE_MASK) + pte_index((addr)))
-
-#define pte_offset_map(dir,addr) pte_offset_kernel(dir, addr)
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel(dir, addr)
-#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
-
-/* Round it up ! */
-#define USER_PTRS_PER_PGD ((TASK_SIZE+PGDIR_SIZE-1)/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
-
-#ifndef __ASSEMBLY__
-#define VMALLOC_END 0xff000000
-#define VMALLOC_START 0xf0000000
-#define VMALLOC_VMADDR(x) ((unsigned long)(x))
-
-#define IOBASE_VADDR 0xff000000
-#define IOBASE_END 0xffffffff
-
-/*
- * PTEL coherent flags.
- * See Chapter 17 ST50 CPU Core Volume 1, Architecture.
- */
-/* The bits that are required in the SH-5 TLB are placed in the h/w-defined
- positions, to avoid expensive bit shuffling on every refill. The remaining
- bits are used for s/w purposes and masked out on each refill.
-
- Note, the PTE slots are used to hold data of type swp_entry_t when a page is
- swapped out. Only the _PAGE_PRESENT flag is significant when the page is
- swapped out, and it must be placed so that it doesn't overlap either the
- type or offset fields of swp_entry_t. For x86, offset is at [31:8] and type
- at [6:1], with _PAGE_PRESENT at bit 0 for both pte_t and swp_entry_t. This
- scheme doesn't map to SH-5 because bit [0] controls cacheability. So bit
- [2] is used for _PAGE_PRESENT and the type field of swp_entry_t is split
- into 2 pieces. That is handled by SWP_ENTRY and SWP_TYPE below. */
-#define _PAGE_WT 0x001 /* CB0: if cacheable, 1->write-thru, 0->write-back */
-#define _PAGE_DEVICE 0x001 /* CB0: if uncacheable, 1->device (i.e. no write-combining or reordering at bus level) */
-#define _PAGE_CACHABLE 0x002 /* CB1: uncachable/cachable */
-#define _PAGE_PRESENT 0x004 /* software: page referenced */
-#define _PAGE_FILE 0x004 /* software: only when !present */
-#define _PAGE_SIZE0 0x008 /* SZ0-bit : size of page */
-#define _PAGE_SIZE1 0x010 /* SZ1-bit : size of page */
-#define _PAGE_SHARED 0x020 /* software: reflects PTEH's SH */
-#define _PAGE_READ 0x040 /* PR0-bit : read access allowed */
-#define _PAGE_EXECUTE 0x080 /* PR1-bit : execute access allowed */
-#define _PAGE_WRITE 0x100 /* PR2-bit : write access allowed */
-#define _PAGE_USER 0x200 /* PR3-bit : user space access allowed */
-#define _PAGE_DIRTY 0x400 /* software: page accessed in write */
-#define _PAGE_ACCESSED 0x800 /* software: page referenced */
-
-/* Mask which drops software flags */
-#define _PAGE_FLAGS_HARDWARE_MASK 0xfffffffffffff3dbLL
-/* Flags default: 4KB, Read, Not write, Not execute, Not user */
-#define _PAGE_FLAGS_HARDWARE_DEFAULT 0x0000000000000040LL
-
-/*
- * HugeTLB support
- */
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#define _PAGE_SZHUGE (_PAGE_SIZE0)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
-#define _PAGE_SZHUGE (_PAGE_SIZE1)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512MB)
-#define _PAGE_SZHUGE (_PAGE_SIZE0 | _PAGE_SIZE1)
-#endif
-
-/*
- * Default flags for a Kernel page.
- * This is fundametally also SHARED because the main use of this define
- * (other than for PGD/PMD entries) is for the VMALLOC pool which is
- * contextless.
- *
- * _PAGE_EXECUTE is required for modules
- *
- */
-#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
- _PAGE_EXECUTE | \
- _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_DIRTY | \
- _PAGE_SHARED)
-
-/* Default flags for a User page */
-#define _PAGE_TABLE (_KERNPG_TABLE | _PAGE_USER)
-
-#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
-
-#define PAGE_NONE __pgprot(_PAGE_CACHABLE | _PAGE_ACCESSED)
-#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
- _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_USER | \
- _PAGE_SHARED)
-/* We need to include PAGE_EXECUTE in PAGE_COPY because it is the default
- * protection mode for the stack. */
-#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_CACHABLE | \
- _PAGE_ACCESSED | _PAGE_USER | _PAGE_EXECUTE)
-#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_CACHABLE | \
- _PAGE_ACCESSED | _PAGE_USER)
-#define PAGE_KERNEL __pgprot(_KERNPG_TABLE)
-
-
-/*
- * In ST50 we have full permissions (Read/Write/Execute/Shared).
- * Just match'em all. These are for mmap(), therefore all at least
- * User/Cachable/Present/Accessed. No point in making Fault on Write.
- */
-#define __MMAP_COMMON (_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED)
- /* sxwr */
-#define __P000 __pgprot(__MMAP_COMMON)
-#define __P001 __pgprot(__MMAP_COMMON | _PAGE_READ)
-#define __P010 __pgprot(__MMAP_COMMON)
-#define __P011 __pgprot(__MMAP_COMMON | _PAGE_READ)
-#define __P100 __pgprot(__MMAP_COMMON | _PAGE_EXECUTE)
-#define __P101 __pgprot(__MMAP_COMMON | _PAGE_EXECUTE | _PAGE_READ)
-#define __P110 __pgprot(__MMAP_COMMON | _PAGE_EXECUTE)
-#define __P111 __pgprot(__MMAP_COMMON | _PAGE_EXECUTE | _PAGE_READ)
-
-#define __S000 __pgprot(__MMAP_COMMON | _PAGE_SHARED)
-#define __S001 __pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_READ)
-#define __S010 __pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_WRITE)
-#define __S011 __pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_READ | _PAGE_WRITE)
-#define __S100 __pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_EXECUTE)
-#define __S101 __pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_EXECUTE | _PAGE_READ)
-#define __S110 __pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_EXECUTE | _PAGE_WRITE)
-#define __S111 __pgprot(__MMAP_COMMON | _PAGE_SHARED | _PAGE_EXECUTE | _PAGE_READ | _PAGE_WRITE)
-
-/* Make it a device mapping for maximum safety (e.g. for mapping device
- registers into user-space via /dev/map). */
-#define pgprot_noncached(x) __pgprot(((x).pgprot & ~(_PAGE_CACHABLE)) | _PAGE_DEVICE)
-#define pgprot_writecombine(prot) __pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE)
-
-/*
- * Handling allocation failures during page table setup.
- */
-extern void __handle_bad_pmd_kernel(pmd_t * pmd);
-#define __handle_bad_pmd(x) __handle_bad_pmd_kernel(x)
-
-/*
- * PTE level access routines.
- *
- * Note1:
- * It's the tree walk leaf. This is physical address to be stored.
- *
- * Note 2:
- * Regarding the choice of _PTE_EMPTY:
-
- We must choose a bit pattern that cannot be valid, whether or not the page
- is present. bit[2]==1 => present, bit[2]==0 => swapped out. If swapped
- out, bits [31:8], [6:3], [1:0] are under swapper control, so only bit[7] is
- left for us to select. If we force bit[7]==0 when swapped out, we could use
- the combination bit[7,2]=2'b10 to indicate an empty PTE. Alternatively, if
- we force bit[7]==1 when swapped out, we can use all zeroes to indicate
- empty. This is convenient, because the page tables get cleared to zero
- when they are allocated.
-
- */
-#define _PTE_EMPTY 0x0
-#define pte_present(x) (pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(xp) (set_pte(xp, __pte(_PTE_EMPTY)))
-#define pte_none(x) (pte_val(x) == _PTE_EMPTY)
-
-/*
- * Some definitions to translate between mem_map, PTEs, and page
- * addresses:
- */
-
-/*
- * Given a PTE, return the index of the mem_map[] entry corresponding
- * to the page frame the PTE. Get the absolute physical address, make
- * a relative physical address and translate it to an index.
- */
-#define pte_pagenr(x) (((unsigned long) (pte_val(x)) - \
- __MEMORY_START) >> PAGE_SHIFT)
-
-/*
- * Given a PTE, return the "struct page *".
- */
-#define pte_page(x) (mem_map + pte_pagenr(x))
-
-/*
- * Return number of (down rounded) MB corresponding to x pages.
- */
-#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
-
-
-/*
- * The following have defined behavior only work if pte_present() is true.
- */
-static inline int pte_read(pte_t pte) { return pte_val(pte) & _PAGE_READ; }
-static inline int pte_exec(pte_t pte) { return pte_val(pte) & _PAGE_EXECUTE; }
-static inline int pte_dirty(pte_t pte){ return pte_val(pte) & _PAGE_DIRTY; }
-static inline int pte_young(pte_t pte){ return pte_val(pte) & _PAGE_ACCESSED; }
-static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; }
-static inline int pte_write(pte_t pte){ return pte_val(pte) & _PAGE_WRITE; }
-
-extern inline pte_t pte_rdprotect(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_READ)); return pte; }
-extern inline pte_t pte_wrprotect(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_WRITE)); return pte; }
-extern inline pte_t pte_exprotect(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_EXECUTE)); return pte; }
-extern inline pte_t pte_mkclean(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY)); return pte; }
-extern inline pte_t pte_mkold(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED)); return pte; }
-
-extern inline pte_t pte_mkread(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_READ)); return pte; }
-extern inline pte_t pte_mkwrite(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_WRITE)); return pte; }
-extern inline pte_t pte_mkexec(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_EXECUTE)); return pte; }
-extern inline pte_t pte_mkdirty(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); return pte; }
-extern inline pte_t pte_mkyoung(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; }
-
-/*
- * Conversion functions: convert a page and protection to a page entry.
- *
- * extern pte_t mk_pte(struct page *page, pgprot_t pgprot)
- */
-#define mk_pte(page,pgprot) \
-({ \
- pte_t __pte; \
- \
- set_pte(&__pte, __pte((((page)-mem_map) << PAGE_SHIFT) | \
- __MEMORY_START | pgprot_val((pgprot)))); \
- __pte; \
-})
-
-/*
- * This takes a (absolute) physical page address that is used
- * by the remapping functions
- */
-#define mk_pte_phys(physpage, pgprot) \
-({ pte_t __pte; set_pte(&__pte, __pte(physpage | pgprot_val(pgprot))); __pte; })
-
-extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{ set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot))); return pte; }
-
-#define page_pte_prot(page, prot) mk_pte(page, prot)
-#define page_pte(page) page_pte_prot(page, __pgprot(0))
-
-typedef pte_t *pte_addr_t;
-#define pgtable_cache_init() do { } while (0)
-
-extern void update_mmu_cache(struct vm_area_struct * vma,
- unsigned long address, pte_t pte);
-
-/* Encode and decode a swap entry */
-#define __swp_type(x) (((x).val & 3) + (((x).val >> 1) & 0x3c))
-#define __swp_offset(x) ((x).val >> 8)
-#define __swp_entry(type, offset) ((swp_entry_t) { ((offset << 8) + ((type & 0x3c) << 1) + (type & 3)) })
-#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-
-/* Encode and decode a nonlinear file mapping entry */
-#define PTE_FILE_MAX_BITS 29
-#define pte_to_pgoff(pte) (pte_val(pte))
-#define pgoff_to_pte(off) ((pte_t) { (off) | _PAGE_FILE })
-
-/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
-#define PageSkip(page) (0)
-#define kern_addr_valid(addr) (1)
-
-#define io_remap_page_range remap_page_range
-#endif /* !__ASSEMBLY__ */
-
-/*
- * No page table caches to initialise
- */
-#define pgtable_cache_init() do { } while (0)
-
-#define pte_pfn(x) (((unsigned long)((x).pte)) >> PAGE_SHIFT)
-#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
-#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
-
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
-#include <asm-generic/pgtable.h>
-
-#endif /* __ASM_SH64_PGTABLE_H */
+++ /dev/null
-#ifndef __ASM_SH64_PLATFORM_H
-#define __ASM_SH64_PLATFORM_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/platform.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * benedict.gaster@superh.com: 3rd May 2002
- * Added support for ramdisk, removing statically linked romfs at the same time.
- */
-
-#include <linux/ioport.h>
-#include <asm/irq.h>
-
-
-/*
- * Platform definition structure.
- */
-struct sh64_platform {
- unsigned int readonly_rootfs;
- unsigned int ramdisk_flags;
- unsigned int initial_root_dev;
- unsigned int loader_type;
- unsigned int initrd_start;
- unsigned int initrd_size;
- unsigned int fpu_flags;
- unsigned int io_res_count;
- unsigned int kram_res_count;
- unsigned int xram_res_count;
- unsigned int rom_res_count;
- struct resource *io_res_p;
- struct resource *kram_res_p;
- struct resource *xram_res_p;
- struct resource *rom_res_p;
-};
-
-extern struct sh64_platform platform_parms;
-
-extern unsigned long long memory_start, memory_end;
-
-extern unsigned long long fpu_in_use;
-
-extern int platform_int_priority[NR_INTC_IRQS];
-
-#define FPU_FLAGS (platform_parms.fpu_flags)
-#define STANDARD_IO_RESOURCES (platform_parms.io_res_count)
-#define STANDARD_KRAM_RESOURCES (platform_parms.kram_res_count)
-#define STANDARD_XRAM_RESOURCES (platform_parms.xram_res_count)
-#define STANDARD_ROM_RESOURCES (platform_parms.rom_res_count)
-
-/*
- * Kernel Memory description, Respectively:
- * code = last but one memory descriptor
- * data = last memory descriptor
- */
-#define code_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 2])
-#define data_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 1])
-
-/* Be prepared to 64-bit sign extensions */
-#define PFN_UP(x) ((((x) + PAGE_SIZE-1) >> PAGE_SHIFT) & 0x000fffff)
-#define PFN_DOWN(x) (((x) >> PAGE_SHIFT) & 0x000fffff)
-#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
-
-#endif /* __ASM_SH64_PLATFORM_H */
+++ /dev/null
-#ifndef __ASM_SH64_POLL_H
-#define __ASM_SH64_POLL_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/poll.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-/* These are specified by iBCS2 */
-#define POLLIN 0x0001
-#define POLLPRI 0x0002
-#define POLLOUT 0x0004
-#define POLLERR 0x0008
-#define POLLHUP 0x0010
-#define POLLNVAL 0x0020
-
-/* The rest seem to be more-or-less nonstandard. Check them! */
-#define POLLRDNORM 0x0040
-#define POLLRDBAND 0x0080
-#define POLLWRNORM 0x0100
-#define POLLWRBAND 0x0200
-#define POLLMSG 0x0400
-
-struct pollfd {
- int fd;
- short events;
- short revents;
-};
-
-#endif /* __ASM_SH64_POLL_H */
+++ /dev/null
-#ifndef __ASM_SH64_POSIX_TYPES_H
-#define __ASM_SH64_POSIX_TYPES_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/posix_types.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- * This file is generally used by user-level software, so you need to
- * be a little careful about namespace pollution etc. Also, we cannot
- * assume GCC is being used.
- */
-
-typedef unsigned long __kernel_ino_t;
-typedef unsigned short __kernel_mode_t;
-typedef unsigned short __kernel_nlink_t;
-typedef long __kernel_off_t;
-typedef int __kernel_pid_t;
-typedef unsigned short __kernel_ipc_pid_t;
-typedef unsigned short __kernel_uid_t;
-typedef unsigned short __kernel_gid_t;
-typedef long unsigned int __kernel_size_t;
-typedef int __kernel_ssize_t;
-typedef int __kernel_ptrdiff_t;
-typedef long __kernel_time_t;
-typedef long __kernel_suseconds_t;
-typedef long __kernel_clock_t;
-typedef int __kernel_timer_t;
-typedef int __kernel_clockid_t;
-typedef int __kernel_daddr_t;
-typedef char * __kernel_caddr_t;
-typedef unsigned short __kernel_uid16_t;
-typedef unsigned short __kernel_gid16_t;
-typedef unsigned int __kernel_uid32_t;
-typedef unsigned int __kernel_gid32_t;
-
-typedef unsigned short __kernel_old_uid_t;
-typedef unsigned short __kernel_old_gid_t;
-typedef unsigned short __kernel_old_dev_t;
-
-#ifdef __GNUC__
-typedef long long __kernel_loff_t;
-#endif
-
-typedef struct {
-#if defined(__KERNEL__) || defined(__USE_ALL)
- int val[2];
-#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
- int __val[2];
-#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
-} __kernel_fsid_t;
-
-#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
-
-#undef __FD_SET
-static __inline__ void __FD_SET(unsigned long __fd, __kernel_fd_set *__fdsetp)
-{
- unsigned long __tmp = __fd / __NFDBITS;
- unsigned long __rem = __fd % __NFDBITS;
- __fdsetp->fds_bits[__tmp] |= (1UL<<__rem);
-}
-
-#undef __FD_CLR
-static __inline__ void __FD_CLR(unsigned long __fd, __kernel_fd_set *__fdsetp)
-{
- unsigned long __tmp = __fd / __NFDBITS;
- unsigned long __rem = __fd % __NFDBITS;
- __fdsetp->fds_bits[__tmp] &= ~(1UL<<__rem);
-}
-
-
-#undef __FD_ISSET
-static __inline__ int __FD_ISSET(unsigned long __fd, const __kernel_fd_set *__p)
-{
- unsigned long __tmp = __fd / __NFDBITS;
- unsigned long __rem = __fd % __NFDBITS;
- return (__p->fds_bits[__tmp] & (1UL<<__rem)) != 0;
-}
-
-/*
- * This will unroll the loop for the normal constant case (8 ints,
- * for a 256-bit fd_set)
- */
-#undef __FD_ZERO
-static __inline__ void __FD_ZERO(__kernel_fd_set *__p)
-{
- unsigned long *__tmp = __p->fds_bits;
- int __i;
-
- if (__builtin_constant_p(__FDSET_LONGS)) {
- switch (__FDSET_LONGS) {
- case 16:
- __tmp[ 0] = 0; __tmp[ 1] = 0;
- __tmp[ 2] = 0; __tmp[ 3] = 0;
- __tmp[ 4] = 0; __tmp[ 5] = 0;
- __tmp[ 6] = 0; __tmp[ 7] = 0;
- __tmp[ 8] = 0; __tmp[ 9] = 0;
- __tmp[10] = 0; __tmp[11] = 0;
- __tmp[12] = 0; __tmp[13] = 0;
- __tmp[14] = 0; __tmp[15] = 0;
- return;
-
- case 8:
- __tmp[ 0] = 0; __tmp[ 1] = 0;
- __tmp[ 2] = 0; __tmp[ 3] = 0;
- __tmp[ 4] = 0; __tmp[ 5] = 0;
- __tmp[ 6] = 0; __tmp[ 7] = 0;
- return;
-
- case 4:
- __tmp[ 0] = 0; __tmp[ 1] = 0;
- __tmp[ 2] = 0; __tmp[ 3] = 0;
- return;
- }
- }
- __i = __FDSET_LONGS;
- while (__i) {
- __i--;
- *__tmp = 0;
- __tmp++;
- }
-}
-
-#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
-
-#endif /* __ASM_SH64_POSIX_TYPES_H */
+++ /dev/null
-#ifndef __ASM_SH64_PROCESSOR_H
-#define __ASM_SH64_PROCESSOR_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/processor.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- */
-
-#include <asm/page.h>
-
-#ifndef __ASSEMBLY__
-
-#include <asm/types.h>
-#include <asm/cache.h>
-#include <asm/registers.h>
-#include <linux/threads.h>
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ \
-void *pc; \
-unsigned long long __dummy = 0; \
-__asm__("gettr tr0, %1\n\t" \
- "pta 4, tr0\n\t" \
- "gettr tr0, %0\n\t" \
- "ptabs %1, tr0\n\t" \
- :"=r" (pc), "=r" (__dummy) \
- : "1" (__dummy)); \
-pc; })
-
-/*
- * CPU type and hardware bug flags. Kept separately for each CPU.
- */
-enum cpu_type {
- CPU_SH5_101,
- CPU_SH5_103,
- CPU_SH_NONE
-};
-
-/*
- * TLB information structure
- *
- * Defined for both I and D tlb, per-processor.
- */
-struct tlb_info {
- unsigned long long next;
- unsigned long long first;
- unsigned long long last;
-
- unsigned int entries;
- unsigned int step;
-
- unsigned long flags;
-};
-
-struct sh_cpuinfo {
- enum cpu_type type;
- unsigned long loops_per_jiffy;
-
- char hard_math;
-
- unsigned long *pgd_quick;
- unsigned long *pmd_quick;
- unsigned long *pte_quick;
- unsigned long pgtable_cache_sz;
- unsigned int cpu_clock, master_clock, bus_clock, module_clock;
-
- /* Cache info */
- struct cache_info icache;
- struct cache_info dcache;
-
- /* TLB info */
- struct tlb_info itlb;
- struct tlb_info dtlb;
-};
-
-extern struct sh_cpuinfo boot_cpu_data;
-
-#define cpu_data (&boot_cpu_data)
-#define current_cpu_data boot_cpu_data
-
-#endif
-
-/*
- * User space process size: 2GB - 4k.
- */
-#define TASK_SIZE 0x7ffff000UL
-
-/* This decides where the kernel will search for a free chunk of vm
- * space during mmap's.
- */
-#define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
-
-/*
- * Bit of SR register
- *
- * FD-bit:
- * When it's set, it means the processor doesn't have right to use FPU,
- * and it results exception when the floating operation is executed.
- *
- * IMASK-bit:
- * Interrupt level mask
- *
- * STEP-bit:
- * Single step bit
- *
- */
-#define SR_FD 0x00008000
-
-#if defined(CONFIG_SH64_SR_WATCH)
-#define SR_MMU 0x84000000
-#else
-#define SR_MMU 0x80000000
-#endif
-
-#define SR_IMASK 0x000000f0
-#define SR_SSTEP 0x08000000
-
-#ifndef __ASSEMBLY__
-
-/*
- * FPU structure and data : require 8-byte alignment as we need to access it
- with fld.p, fst.p
- */
-
-struct sh_fpu_hard_struct {
- unsigned long fp_regs[64];
- unsigned int fpscr;
- /* long status; * software status information */
-};
-
-#if 0
-/* Dummy fpu emulator */
-struct sh_fpu_soft_struct {
- unsigned long long fp_regs[32];
- unsigned int fpscr;
- unsigned char lookahead;
- unsigned long entry_pc;
-};
-#endif
-
-union sh_fpu_union {
- struct sh_fpu_hard_struct hard;
- /* 'hard' itself only produces 32 bit alignment, yet we need
- to access it using 64 bit load/store as well. */
- unsigned long long alignment_dummy;
-};
-
-struct thread_struct {
- unsigned long sp;
- unsigned long pc;
- /* This stores the address of the pt_regs built during a context
- switch, or of the register save area built for a kernel mode
- exception. It is used for backtracing the stack of a sleeping task
- or one that traps in kernel mode. */
- struct pt_regs *kregs;
- /* This stores the address of the pt_regs constructed on entry from
- user mode. It is a fixed value over the lifetime of a process, or
- NULL for a kernel thread. */
- struct pt_regs *uregs;
-
- unsigned long trap_no, error_code;
- unsigned long address;
- /* Hardware debugging registers may come here */
-
- /* floating point info */
- union sh_fpu_union fpu;
-};
-
-#define INIT_MMAP \
-{ &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, NULL, NULL }
-
-extern struct pt_regs fake_swapper_regs;
-
-#define INIT_THREAD { \
- .sp = sizeof(init_stack) + \
- (long) &init_stack, \
- .pc = 0, \
- .kregs = &fake_swapper_regs, \
- .uregs = NULL, \
- .trap_no = 0, \
- .error_code = 0, \
- .address = 0, \
- .fpu = { { { 0, } }, } \
-}
-
-/*
- * Do necessary setup to start up a newly executed thread.
- */
-#define SR_USER (SR_MMU | SR_FD)
-
-#define start_thread(regs, new_pc, new_sp) \
- set_fs(USER_DS); \
- regs->sr = SR_USER; /* User mode. */ \
- regs->pc = new_pc - 4; /* Compensate syscall exit */ \
- regs->pc |= 1; /* Set SHmedia ! */ \
- regs->regs[18] = 0; \
- regs->regs[15] = new_sp
-
-/* Forward declaration, a strange C thing */
-struct task_struct;
-struct mm_struct;
-
-/* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
-/*
- * create a kernel thread without removing it from tasklists
- */
-extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
-
-/*
- * Bus types
- */
-#define MCA_bus 0
-#define MCA_bus__is_a_macro /* for versions in ksyms.c */
-
-
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm) do { } while (0)
-#define release_segments(mm) do { } while (0)
-#define forget_segments() do { } while (0)
-#define prepare_to_copy(tsk) do { } while (0)
-/*
- * FPU lazy state save handling.
- */
-
-extern __inline__ void release_fpu(void)
-{
- unsigned long long __dummy;
-
- /* Set FD flag in SR */
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "or %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy)
- : "r" (SR_FD));
-}
-
-extern __inline__ void grab_fpu(void)
-{
- unsigned long long __dummy;
-
- /* Clear out FD flag in SR */
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "and %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy)
- : "r" (~SR_FD));
-}
-
-/* Round to nearest, no exceptions on inexact, overflow, underflow,
- zero-divide, invalid. Configure option for whether to flush denorms to
- zero, or except if a denorm is encountered. */
-#if defined(CONFIG_SH64_FPU_DENORM_FLUSH)
-#define FPSCR_INIT 0x00040000
-#else
-#define FPSCR_INIT 0x00000000
-#endif
-
-/* Save the current FP regs */
-void fpsave(struct sh_fpu_hard_struct *fpregs);
-
-/* Initialise the FP state of a task */
-void fpinit(struct sh_fpu_hard_struct *fpregs);
-
-extern struct task_struct *last_task_used_math;
-
-/*
- * Return saved PC of a blocked thread.
- */
-#define thread_saved_pc(tsk) (tsk->thread.pc)
-
-extern unsigned long get_wchan(struct task_struct *p);
-
-#define KSTK_EIP(tsk) ((tsk)->thread.pc)
-#define KSTK_ESP(tsk) ((tsk)->thread.sp)
-
-#define cpu_relax() do { } while (0)
-
-#endif /* __ASSEMBLY__ */
-#endif /* __ASM_SH64_PROCESSOR_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_PTRACE_H
-#define __ASM_SH64_PTRACE_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/ptrace.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-/*
- * This struct defines the way the registers are stored on the
- * kernel stack during a system call or other kernel entry.
- */
-struct pt_regs {
- unsigned long long pc;
- unsigned long long sr;
- unsigned long long syscall_nr;
- unsigned long long regs[63];
- unsigned long long tregs[8];
- unsigned long long pad[2];
-};
-
-#ifdef __KERNEL__
-#define user_mode(regs) (((regs)->sr & 0x40000000)==0)
-#define instruction_pointer(regs) ((regs)->pc)
-extern void show_regs(struct pt_regs *);
-#endif
-
-#define PTRACE_O_TRACESYSGOOD 0x00000001
-
-#endif /* __ASM_SH64_PTRACE_H */
+++ /dev/null
-#ifndef __ASM_SH64_REGISTERS_H
-#define __ASM_SH64_REGISTERS_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/registers.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2004 Richard Curnow
- */
-
-#ifdef __ASSEMBLY__
-/* =====================================================================
-**
-** Section 1: acts on assembly sources pre-processed by GPP ( <source.S>).
-** Assigns symbolic names to control & target registers.
-*/
-
-/*
- * Define some useful aliases for control registers.
- */
-#define SR cr0
-#define SSR cr1
-#define PSSR cr2
- /* cr3 UNDEFINED */
-#define INTEVT cr4
-#define EXPEVT cr5
-#define PEXPEVT cr6
-#define TRA cr7
-#define SPC cr8
-#define PSPC cr9
-#define RESVEC cr10
-#define VBR cr11
- /* cr12 UNDEFINED */
-#define TEA cr13
- /* cr14-cr15 UNDEFINED */
-#define DCR cr16
-#define KCR0 cr17
-#define KCR1 cr18
- /* cr19-cr31 UNDEFINED */
- /* cr32-cr61 RESERVED */
-#define CTC cr62
-#define USR cr63
-
-/*
- * ABI dependent registers (general purpose set)
- */
-#define RET r2
-#define ARG1 r2
-#define ARG2 r3
-#define ARG3 r4
-#define ARG4 r5
-#define ARG5 r6
-#define ARG6 r7
-#define SP r15
-#define LINK r18
-#define ZERO r63
-
-/*
- * Status register defines: used only by assembly sources (and
- * syntax independednt)
- */
-#define SR_RESET_VAL 0x0000000050008000
-#define SR_HARMLESS 0x00000000500080f0 /* Write ignores for most */
-#define SR_ENABLE_FPU 0xffffffffffff7fff /* AND with this */
-
-#if defined (CONFIG_SH64_SR_WATCH)
-#define SR_ENABLE_MMU 0x0000000084000000 /* OR with this */
-#else
-#define SR_ENABLE_MMU 0x0000000080000000 /* OR with this */
-#endif
-
-#define SR_UNBLOCK_EXC 0xffffffffefffffff /* AND with this */
-#define SR_BLOCK_EXC 0x0000000010000000 /* OR with this */
-
-#else /* Not __ASSEMBLY__ syntax */
-
-/*
-** Stringify reg. name
-*/
-#define __str(x) #x
-
-/* Stringify control register names for use in inline assembly */
-#define __SR __str(SR)
-#define __SSR __str(SSR)
-#define __PSSR __str(PSSR)
-#define __INTEVT __str(INTEVT)
-#define __EXPEVT __str(EXPEVT)
-#define __PEXPEVT __str(PEXPEVT)
-#define __TRA __str(TRA)
-#define __SPC __str(SPC)
-#define __PSPC __str(PSPC)
-#define __RESVEC __str(RESVEC)
-#define __VBR __str(VBR)
-#define __TEA __str(TEA)
-#define __DCR __str(DCR)
-#define __KCR0 __str(KCR0)
-#define __KCR1 __str(KCR1)
-#define __CTC __str(CTC)
-#define __USR __str(USR)
-
-#endif /* __ASSEMBLY__ */
-#endif /* __ASM_SH64_REGISTERS_H */
+++ /dev/null
-#ifndef __ASM_SH64_RESOURCE_H
-#define __ASM_SH64_RESOURCE_H
-
-#include <asm-sh/resource.h>
-
-#endif /* __ASM_SH64_RESOURCE_H */
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/scatterlist.h
- *
- * Copyright (C) 2003 Paul Mundt
- *
- */
-#ifndef __ASM_SH64_SCATTERLIST_H
-#define __ASM_SH64_SCATTERLIST_H
-
-struct scatterlist {
- struct page * page; /* Location for highmem page, if any */
- unsigned int offset;/* for highmem, page offset */
- dma_addr_t dma_address;
- unsigned int length;
-};
-
-#define ISA_DMA_THRESHOLD (0xffffffff)
-
-#endif /* !__ASM_SH64_SCATTERLIST_H */
+++ /dev/null
-#ifndef __ASM_SH64_SECTIONS_H
-#define __ASM_SH64_SECTIONS_H
-
-#include <asm-sh/sections.h>
-
-#endif /* __ASM_SH64_SECTIONS_H */
-
+++ /dev/null
-#ifndef _ASM_SEGMENT_H
-#define _ASM_SEGMENT_H
-
-/* Only here because we have some old header files that expect it.. */
-
-#endif /* _ASM_SEGMENT_H */
+++ /dev/null
-#ifndef __ASM_SH64_SEMAPHORE_HELPER_H
-#define __ASM_SH64_SEMAPHORE_HELPER_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/semaphore-helper.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-#include <asm/errno.h>
-
-/*
- * SMP- and interrupt-safe semaphores helper functions.
- *
- * (C) Copyright 1996 Linus Torvalds
- * (C) Copyright 1999 Andrea Arcangeli
- */
-
-/*
- * These two _must_ execute atomically wrt each other.
- *
- * This is trivially done with load_locked/store_cond,
- * which we have. Let the rest of the losers suck eggs.
- */
-static __inline__ void wake_one_more(struct semaphore * sem)
-{
- atomic_inc((atomic_t *)&sem->sleepers);
-}
-
-static __inline__ int waking_non_zero(struct semaphore *sem)
-{
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&semaphore_wake_lock, flags);
- if (sem->sleepers > 0) {
- sem->sleepers--;
- ret = 1;
- }
- spin_unlock_irqrestore(&semaphore_wake_lock, flags);
- return ret;
-}
-
-/*
- * waking_non_zero_interruptible:
- * 1 got the lock
- * 0 go to sleep
- * -EINTR interrupted
- *
- * We must undo the sem->count down_interruptible() increment while we are
- * protected by the spinlock in order to make atomic this atomic_inc() with the
- * atomic_read() in wake_one_more(), otherwise we can race. -arca
- */
-static __inline__ int waking_non_zero_interruptible(struct semaphore *sem,
- struct task_struct *tsk)
-{
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&semaphore_wake_lock, flags);
- if (sem->sleepers > 0) {
- sem->sleepers--;
- ret = 1;
- } else if (signal_pending(tsk)) {
- atomic_inc(&sem->count);
- ret = -EINTR;
- }
- spin_unlock_irqrestore(&semaphore_wake_lock, flags);
- return ret;
-}
-
-/*
- * waking_non_zero_trylock:
- * 1 failed to lock
- * 0 got the lock
- *
- * We must undo the sem->count down_trylock() increment while we are
- * protected by the spinlock in order to make atomic this atomic_inc() with the
- * atomic_read() in wake_one_more(), otherwise we can race. -arca
- */
-static __inline__ int waking_non_zero_trylock(struct semaphore *sem)
-{
- unsigned long flags;
- int ret = 1;
-
- spin_lock_irqsave(&semaphore_wake_lock, flags);
- if (sem->sleepers <= 0)
- atomic_inc(&sem->count);
- else {
- sem->sleepers--;
- ret = 0;
- }
- spin_unlock_irqrestore(&semaphore_wake_lock, flags);
- return ret;
-}
-
-#endif /* __ASM_SH64_SEMAPHORE_HELPER_H */
+++ /dev/null
-#ifndef __ASM_SH64_SEMAPHORE_H
-#define __ASM_SH64_SEMAPHORE_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/semaphore.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * SMP- and interrupt-safe semaphores.
- *
- * (C) Copyright 1996 Linus Torvalds
- *
- * SuperH verison by Niibe Yutaka
- * (Currently no asm implementation but generic C code...)
- *
- */
-
-#include <linux/linkage.h>
-#include <linux/spinlock.h>
-#include <linux/wait.h>
-#include <linux/rwsem.h>
-
-#include <asm/system.h>
-#include <asm/atomic.h>
-
-struct semaphore {
- atomic_t count;
- int sleepers;
- wait_queue_head_t wait;
-#ifdef WAITQUEUE_DEBUG
- long __magic;
-#endif
-};
-
-#ifdef WAITQUEUE_DEBUG
-# define __SEM_DEBUG_INIT(name) \
- , (int)&(name).__magic
-#else
-# define __SEM_DEBUG_INIT(name)
-#endif
-
-#define __SEMAPHORE_INITIALIZER(name,count) \
-{ ATOMIC_INIT(count), 0, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
- __SEM_DEBUG_INIT(name) }
-
-#define __MUTEX_INITIALIZER(name) \
- __SEMAPHORE_INITIALIZER(name,1)
-
-#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
- struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
-
-#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
-#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
-
-static inline void sema_init (struct semaphore *sem, int val)
-{
-/*
- * *sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
- *
- * i'd rather use the more flexible initialization above, but sadly
- * GCC 2.7.2.3 emits a bogus warning. EGCS doesnt. Oh well.
- */
- atomic_set(&sem->count, val);
- sem->sleepers = 0;
- init_waitqueue_head(&sem->wait);
-#ifdef WAITQUEUE_DEBUG
- sem->__magic = (int)&sem->__magic;
-#endif
-}
-
-static inline void init_MUTEX (struct semaphore *sem)
-{
- sema_init(sem, 1);
-}
-
-static inline void init_MUTEX_LOCKED (struct semaphore *sem)
-{
- sema_init(sem, 0);
-}
-
-#if 0
-asmlinkage void __down_failed(void /* special register calling convention */);
-asmlinkage int __down_failed_interruptible(void /* params in registers */);
-asmlinkage int __down_failed_trylock(void /* params in registers */);
-asmlinkage void __up_wakeup(void /* special register calling convention */);
-#endif
-
-asmlinkage void __down(struct semaphore * sem);
-asmlinkage int __down_interruptible(struct semaphore * sem);
-asmlinkage int __down_trylock(struct semaphore * sem);
-asmlinkage void __up(struct semaphore * sem);
-
-extern spinlock_t semaphore_wake_lock;
-
-static inline void down(struct semaphore * sem)
-{
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
-
- if (atomic_dec_return(&sem->count) < 0)
- __down(sem);
-}
-
-static inline int down_interruptible(struct semaphore * sem)
-{
- int ret = 0;
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
-
- if (atomic_dec_return(&sem->count) < 0)
- ret = __down_interruptible(sem);
- return ret;
-}
-
-static inline int down_trylock(struct semaphore * sem)
-{
- int ret = 0;
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
-
- if (atomic_dec_return(&sem->count) < 0)
- ret = __down_trylock(sem);
- return ret;
-}
-
-/*
- * Note! This is subtle. We jump to wake people up only if
- * the semaphore was negative (== somebody was waiting on it).
- */
-static inline void up(struct semaphore * sem)
-{
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
- if (atomic_inc_return(&sem->count) <= 0)
- __up(sem);
-}
-
-#endif /* __ASM_SH64_SEMAPHORE_H */
+++ /dev/null
-#ifndef __ASM_SH64_SEMBUF_H
-#define __ASM_SH64_SEMBUF_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/sembuf.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-/*
- * The semid64_ds structure for i386 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct semid64_ds {
- struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
- __kernel_time_t sem_otime; /* last semop time */
- unsigned long __unused1;
- __kernel_time_t sem_ctime; /* last change time */
- unsigned long __unused2;
- unsigned long sem_nsems; /* no. of semaphores in array */
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* __ASM_SH64_SEMBUF_H */
+++ /dev/null
-/*
- * include/asm-sh/serial.h
- *
- * Configuration details for 8250, 16450, 16550, etc. serial ports
- */
-
-#ifndef _ASM_SERIAL_H
-#define _ASM_SERIAL_H
-
-/*
- * This assumes you have a 1.8432 MHz clock for your UART.
- *
- * It'd be nice if someone built a serial card with a 24.576 MHz
- * clock, since the 16550A is capable of handling a top speed of 1.5
- * megabits/second; but this requires the faster clock.
- */
-#define BASE_BAUD ( 1843200 / 16 )
-
-#define RS_TABLE_SIZE 2
-
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
-
-#define STD_SERIAL_PORT_DEFNS \
- /* UART CLK PORT IRQ FLAGS */ \
- { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
- { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS } /* ttyS1 */
-
-#define SERIAL_PORT_DFNS STD_SERIAL_PORT_DEFNS
-
-/* XXX: This should be moved ino irq.h */
-#define irq_cannonicalize(x) (x)
-
-#endif /* _ASM_SERIAL_H */
+++ /dev/null
-#ifndef __ASM_SH64_SETUP_H
-#define __ASM_SH64_SETUP_H
-
-#define PARAM ((unsigned char *)empty_zero_page)
-#define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000))
-#define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004))
-#define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008))
-#define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c))
-#define INITRD_START (*(unsigned long *) (PARAM+0x010))
-#define INITRD_SIZE (*(unsigned long *) (PARAM+0x014))
-
-#define COMMAND_LINE ((char *) (PARAM+256))
-#define COMMAND_LINE_SIZE 256
-
-#endif /* __ASM_SH64_SETUP_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_SHMBUF_H
-#define __ASM_SH64_SHMBUF_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/shmbuf.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-/*
- * The shmid64_ds structure for i386 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct shmid64_ds {
- struct ipc64_perm shm_perm; /* operation perms */
- size_t shm_segsz; /* size of segment (bytes) */
- __kernel_time_t shm_atime; /* last attach time */
- unsigned long __unused1;
- __kernel_time_t shm_dtime; /* last detach time */
- unsigned long __unused2;
- __kernel_time_t shm_ctime; /* last change time */
- unsigned long __unused3;
- __kernel_pid_t shm_cpid; /* pid of creator */
- __kernel_pid_t shm_lpid; /* pid of last operator */
- unsigned long shm_nattch; /* no. of current attaches */
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-struct shminfo64 {
- unsigned long shmmax;
- unsigned long shmmin;
- unsigned long shmmni;
- unsigned long shmseg;
- unsigned long shmall;
- unsigned long __unused1;
- unsigned long __unused2;
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* __ASM_SH64_SHMBUF_H */
+++ /dev/null
-#ifndef __ASM_SH64_SHMPARAM_H
-#define __ASM_SH64_SHMPARAM_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/shmparam.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <asm/cache.h>
-
-/* attach addr a multiple of this */
-#define SHMLBA (cpu_data->dcache.sets * L1_CACHE_BYTES)
-
-#endif /* __ASM_SH64_SHMPARAM_H */
+++ /dev/null
-#ifndef __ASM_SH64_SIGCONTEXT_H
-#define __ASM_SH64_SIGCONTEXT_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/sigcontext.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-struct sigcontext {
- unsigned long oldmask;
-
- /* CPU registers */
- unsigned long long sc_regs[63];
- unsigned long long sc_tregs[8];
- unsigned long long sc_pc;
- unsigned long long sc_sr;
-
- /* FPU registers */
- unsigned long long sc_fpregs[32];
- unsigned int sc_fpscr;
- unsigned int sc_fpvalid;
-};
-
-#endif /* __ASM_SH64_SIGCONTEXT_H */
+++ /dev/null
-#ifndef __ASM_SH64_SIGINFO_H
-#define __ASM_SH64_SIGINFO_H
-
-#include <asm-generic/siginfo.h>
-
-#endif /* __ASM_SH64_SIGINFO_H */
+++ /dev/null
-#ifndef __ASM_SH64_SIGNAL_H
-#define __ASM_SH64_SIGNAL_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/signal.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <linux/types.h>
-#include <asm/processor.h>
-
-/* Avoid too many header ordering problems. */
-struct siginfo;
-
-#define _NSIG 64
-#define _NSIG_BPW 32
-#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
-
-typedef unsigned long old_sigset_t; /* at least 32 bits */
-
-typedef struct {
- unsigned long sig[_NSIG_WORDS];
-} sigset_t;
-
-#define SIGHUP 1
-#define SIGINT 2
-#define SIGQUIT 3
-#define SIGILL 4
-#define SIGTRAP 5
-#define SIGABRT 6
-#define SIGIOT 6
-#define SIGBUS 7
-#define SIGFPE 8
-#define SIGKILL 9
-#define SIGUSR1 10
-#define SIGSEGV 11
-#define SIGUSR2 12
-#define SIGPIPE 13
-#define SIGALRM 14
-#define SIGTERM 15
-#define SIGSTKFLT 16
-#define SIGCHLD 17
-#define SIGCONT 18
-#define SIGSTOP 19
-#define SIGTSTP 20
-#define SIGTTIN 21
-#define SIGTTOU 22
-#define SIGURG 23
-#define SIGXCPU 24
-#define SIGXFSZ 25
-#define SIGVTALRM 26
-#define SIGPROF 27
-#define SIGWINCH 28
-#define SIGIO 29
-#define SIGPOLL SIGIO
-/*
-#define SIGLOST 29
-*/
-#define SIGPWR 30
-#define SIGSYS 31
-#define SIGUNUSED 31
-
-/* These should not be considered constants from userland. */
-#define SIGRTMIN 32
-#define SIGRTMAX (_NSIG-1)
-
-/*
- * SA_FLAGS values:
- *
- * SA_ONSTACK indicates that a registered stack_t will be used.
- * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
- * SA_RESTART flag to get restarting signals (which were the default long ago)
- * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
- * SA_RESETHAND clears the handler when the signal is delivered.
- * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
- * SA_NODEFER prevents the current signal from being masked in the handler.
- *
- * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
- * Unix names RESETHAND and NODEFER respectively.
- */
-#define SA_NOCLDSTOP 0x00000001
-#define SA_NOCLDWAIT 0x00000002 /* not supported yet */
-#define SA_SIGINFO 0x00000004
-#define SA_ONSTACK 0x08000000
-#define SA_RESTART 0x10000000
-#define SA_NODEFER 0x40000000
-#define SA_RESETHAND 0x80000000
-
-#define SA_NOMASK SA_NODEFER
-#define SA_ONESHOT SA_RESETHAND
-#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
-
-#define SA_RESTORER 0x04000000
-
-/*
- * sigaltstack controls
- */
-#define SS_ONSTACK 1
-#define SS_DISABLE 2
-
-#define MINSIGSTKSZ 2048
-#define SIGSTKSZ THREAD_SIZE
-
-#ifdef __KERNEL__
-
-/*
- * These values of sa_flags are used only by the kernel as part of the
- * irq handling routines.
- *
- * SA_INTERRUPT is also used by the irq handling routines.
- * SA_SHIRQ is for shared interrupt support on PCI and EISA.
- */
-#define SA_PROBE SA_ONESHOT
-#define SA_SAMPLE_RANDOM SA_RESTART
-#define SA_SHIRQ 0x04000000
-#endif
-
-#define SIG_BLOCK 0 /* for blocking signals */
-#define SIG_UNBLOCK 1 /* for unblocking signals */
-#define SIG_SETMASK 2 /* for setting the signal mask */
-
-/* Type of a signal handler. */
-typedef void (*__sighandler_t)(int);
-
-#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
-#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
-#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
-
-#ifdef __KERNEL__
-struct old_sigaction {
- __sighandler_t sa_handler;
- old_sigset_t sa_mask;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
-};
-
-struct sigaction {
- __sighandler_t sa_handler;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
- sigset_t sa_mask; /* mask last for extensibility */
-};
-
-struct k_sigaction {
- struct sigaction sa;
-};
-#else
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-struct sigaction {
- union {
- __sighandler_t _sa_handler;
- void (*_sa_sigaction)(int, struct siginfo *, void *);
- } _u;
- sigset_t sa_mask;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
-};
-
-#define sa_handler _u._sa_handler
-#define sa_sigaction _u._sa_sigaction
-
-#endif /* __KERNEL__ */
-
-typedef struct sigaltstack {
- void *ss_sp;
- int ss_flags;
- size_t ss_size;
-} stack_t;
-
-#ifdef __KERNEL__
-#include <asm/sigcontext.h>
-
-#define sigmask(sig) (1UL << ((sig) - 1))
-#define ptrace_signal_deliver(regs, cookie) do { } while (0)
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_SH64_SIGNAL_H */
+++ /dev/null
-#ifndef __ASM_SH64_SMP_H
-#define __ASM_SH64_SMP_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/smp.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#endif /* __ASM_SH64_SMP_H */
+++ /dev/null
-#ifndef __ASM_SH64_SMPLOCK_H
-#define __ASM_SH64_SMPLOCK_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/smplock.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <linux/config.h>
-
-#ifndef CONFIG_SMP
-
-#define lock_kernel() do { } while(0)
-#define unlock_kernel() do { } while(0)
-#define release_kernel_lock(task, cpu, depth) ((depth) = 1)
-#define reacquire_kernel_lock(task, cpu, depth) do { } while(0)
-
-#else
-
-#error "We do not support SMP on SH64 yet"
-/*
- * Default SMP lock implementation
- */
-
-#include <linux/interrupt.h>
-#include <asm/spinlock.h>
-
-extern spinlock_t kernel_flag;
-
-/*
- * Getting the big kernel lock.
- *
- * This cannot happen asynchronously,
- * so we only need to worry about other
- * CPU's.
- */
-extern __inline__ void lock_kernel(void)
-{
- if (!++current->lock_depth)
- spin_lock(&kernel_flag);
-}
-
-extern __inline__ void unlock_kernel(void)
-{
- if (--current->lock_depth < 0)
- spin_unlock(&kernel_flag);
-}
-
-/*
- * Release global kernel lock and global interrupt lock
- */
-#define release_kernel_lock(task, cpu) \
-do { \
- if (task->lock_depth >= 0) \
- spin_unlock(&kernel_flag); \
- release_irqlock(cpu); \
- __sti(); \
-} while (0)
-
-/*
- * Re-acquire the kernel lock
- */
-#define reacquire_kernel_lock(task) \
-do { \
- if (task->lock_depth >= 0) \
- spin_lock(&kernel_flag); \
-} while (0)
-
-#endif /* CONFIG_SMP */
-
-#endif /* __ASM_SH64_SMPLOCK_H */
+++ /dev/null
-#ifndef __ASM_SH64_SOCKET_H
-#define __ASM_SH64_SOCKET_H
-
-#include <asm-sh/socket.h>
-
-#endif /* __ASM_SH64_SOCKET_H */
+++ /dev/null
-#ifndef __ASM_SH64_SOCKIOS_H
-#define __ASM_SH64_SOCKIOS_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/sockios.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-/* Socket-level I/O control calls. */
-#define FIOGETOWN _IOR('f', 123, int)
-#define FIOSETOWN _IOW('f', 124, int)
-
-#define SIOCATMARK _IOR('s', 7, int)
-#define SIOCSPGRP _IOW('s', 8, pid_t)
-#define SIOCGPGRP _IOR('s', 9, pid_t)
-
-#define SIOCGSTAMP _IOR('s', 100, struct timeval) /* Get stamp - linux-specific */
-#endif /* __ASM_SH64_SOCKIOS_H */
+++ /dev/null
-#ifndef __ASM_SH_SOFTIRQ_H
-#define __ASM_SH_SOFTIRQ_H
-
-#include <asm/atomic.h>
-#include <asm/hardirq.h>
-
-#define local_bh_disable() \
-do { \
- local_bh_count(smp_processor_id())++; \
- barrier(); \
-} while (0)
-
-#define __local_bh_enable() \
-do { \
- barrier(); \
- local_bh_count(smp_processor_id())--; \
-} while (0)
-
-#define local_bh_enable() \
-do { \
- barrier(); \
- if (!--local_bh_count(smp_processor_id()) \
- && softirq_pending(smp_processor_id())) { \
- do_softirq(); \
- } \
-} while (0)
-
-#define in_softirq() (local_bh_count(smp_processor_id()) != 0)
-
-#endif /* __ASM_SH_SOFTIRQ_H */
+++ /dev/null
-#ifndef __ASM_SH64_SPINLOCK_H
-#define __ASM_SH64_SPINLOCK_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/spinlock.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#error "No SMP on SH64"
-
-#endif /* __ASM_SH64_SPINLOCK_H */
+++ /dev/null
-#ifndef __ASM_SH64_STAT_H
-#define __ASM_SH64_STAT_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/stat.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-struct __old_kernel_stat {
- unsigned short st_dev;
- unsigned short st_ino;
- unsigned short st_mode;
- unsigned short st_nlink;
- unsigned short st_uid;
- unsigned short st_gid;
- unsigned short st_rdev;
- unsigned long st_size;
- unsigned long st_atime;
- unsigned long st_mtime;
- unsigned long st_ctime;
-};
-
-struct stat {
- unsigned short st_dev;
- unsigned short __pad1;
- unsigned long st_ino;
- unsigned short st_mode;
- unsigned short st_nlink;
- unsigned short st_uid;
- unsigned short st_gid;
- unsigned short st_rdev;
- unsigned short __pad2;
- unsigned long st_size;
- unsigned long st_blksize;
- unsigned long st_blocks;
- unsigned long st_atime;
- unsigned long st_atime_nsec;
- unsigned long st_mtime;
- unsigned long st_mtime_nsec;
- unsigned long st_ctime;
- unsigned long st_ctime_nsec;
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-/* This matches struct stat64 in glibc2.1, hence the absolutely
- * insane amounts of padding around dev_t's.
- */
-struct stat64 {
- unsigned short st_dev;
- unsigned char __pad0[10];
-
- unsigned long st_ino;
- unsigned int st_mode;
- unsigned int st_nlink;
-
- unsigned long st_uid;
- unsigned long st_gid;
-
- unsigned short st_rdev;
- unsigned char __pad3[10];
-
- long long st_size;
- unsigned long st_blksize;
-
- unsigned long st_blocks; /* Number 512-byte blocks allocated. */
- unsigned long __pad4; /* future possible st_blocks high bits */
-
- unsigned long st_atime;
- unsigned long st_atime_nsec;
-
- unsigned long st_mtime;
- unsigned long st_mtime_nsec;
-
- unsigned long st_ctime;
- unsigned long st_ctime_nsec; /* will be high 32 bits of ctime someday */
-
- unsigned long __unused1;
- unsigned long __unused2;
-};
-
-#endif /* __ASM_SH64_STAT_H */
+++ /dev/null
-#ifndef __ASM_SH64_STATFS_H
-#define __ASM_SH64_STATFS_H
-
-#include <asm-generic/statfs.h>
-
-#endif /* __ASM_SH64_STATFS_H */
+++ /dev/null
-#ifndef __ASM_SH64_STRING_H
-#define __ASM_SH64_STRING_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/string.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * Empty on purpose. ARCH SH64 ASM libs are out of the current project scope.
- *
- */
-
-#define __HAVE_ARCH_MEMCPY
-
-extern void *memcpy(void *dest, const void *src, size_t count);
-
-#endif
+++ /dev/null
-#ifndef __ASM_SH64_SYSTEM_H
-#define __ASM_SH64_SYSTEM_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/system.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <asm/registers.h>
-#include <asm/processor.h>
-
-/*
- * switch_to() should switch tasks to task nr n, first
- */
-
-typedef struct {
- unsigned long seg;
-} mm_segment_t;
-
-extern struct task_struct *sh64_switch_to(struct task_struct *prev,
- struct thread_struct *prev_thread,
- struct task_struct *next,
- struct thread_struct *next_thread);
-
-#define switch_to(prev,next,last) \
- do {\
- if (last_task_used_math != next) {\
- struct pt_regs *regs = next->thread.uregs;\
- if (regs) regs->sr |= SR_FD;\
- }\
- last = sh64_switch_to(prev, &prev->thread, next, &next->thread);\
- } while(0)
-
-#define nop() __asm__ __volatile__ ("nop")
-
-#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
-
-#define tas(ptr) (xchg((ptr), 1))
-
-extern void __xchg_called_with_bad_pointer(void);
-
-#define mb() __asm__ __volatile__ ("synco": : :"memory")
-#define rmb() mb()
-#define wmb() __asm__ __volatile__ ("synco": : :"memory")
-#define read_barrier_depends() do { } while (0)
-
-#ifdef CONFIG_SMP
-#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
-#define smp_read_barrier_depends() read_barrier_depends()
-#else
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-#define smp_read_barrier_depends() do { } while (0)
-#endif /* CONFIG_SMP */
-
-#define set_rmb(var, value) do { xchg(&var, value); } while (0)
-#define set_mb(var, value) set_rmb(var, value)
-#define set_wmb(var, value) do { var = value; wmb(); } while (0)
-
-/* Interrupt Control */
-#ifndef HARD_CLI
-#define SR_MASK_L 0x000000f0L
-#define SR_MASK_LL 0x00000000000000f0LL
-#else
-#define SR_MASK_L 0x10000000L
-#define SR_MASK_LL 0x0000000010000000LL
-#endif
-
-static __inline__ void local_irq_enable(void)
-{
- /* cli/sti based on SR.BL */
- unsigned long long __dummy0, __dummy1=~SR_MASK_LL;
-
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "and %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy0)
- : "r" (__dummy1));
-}
-
-static __inline__ void local_irq_disable(void)
-{
- /* cli/sti based on SR.BL */
- unsigned long long __dummy0, __dummy1=SR_MASK_LL;
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "or %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy0)
- : "r" (__dummy1));
-}
-
-#define local_save_flags(x) \
-(__extension__ ({ unsigned long long __dummy=SR_MASK_LL; \
- __asm__ __volatile__( \
- "getcon " __SR ", %0\n\t" \
- "and %0, %1, %0" \
- : "=&r" (x) \
- : "r" (__dummy));}))
-
-#define local_irq_save(x) \
-(__extension__ ({ unsigned long long __d2=SR_MASK_LL, __d1; \
- __asm__ __volatile__( \
- "getcon " __SR ", %1\n\t" \
- "or %1, r63, %0\n\t" \
- "or %1, %2, %1\n\t" \
- "putcon %1, " __SR "\n\t" \
- "and %0, %2, %0" \
- : "=&r" (x), "=&r" (__d1) \
- : "r" (__d2));}));
-
-#define local_irq_restore(x) do { \
- if ( ((x) & SR_MASK_L) == 0 ) /* dropping to 0 ? */ \
- local_irq_enable(); /* yes...re-enable */ \
-} while (0)
-
-#define irqs_disabled() \
-({ \
- unsigned long flags; \
- local_save_flags(flags); \
- (flags != 0); \
-})
-
-extern __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val)
-{
- unsigned long flags, retval;
-
- local_irq_save(flags);
- retval = *m;
- *m = val;
- local_irq_restore(flags);
- return retval;
-}
-
-extern __inline__ unsigned long xchg_u8(volatile unsigned char * m, unsigned long val)
-{
- unsigned long flags, retval;
-
- local_irq_save(flags);
- retval = *m;
- *m = val & 0xff;
- local_irq_restore(flags);
- return retval;
-}
-
-static __inline__ unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
-{
- switch (size) {
- case 4:
- return xchg_u32(ptr, x);
- break;
- case 1:
- return xchg_u8(ptr, x);
- break;
- }
- __xchg_called_with_bad_pointer();
- return x;
-}
-
-/* XXX
- * disable hlt during certain critical i/o operations
- */
-#define HAVE_DISABLE_HLT
-void disable_hlt(void);
-void enable_hlt(void);
-
-
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-
-#ifdef CONFIG_SH_ALPHANUMERIC
-/* This is only used for debugging. */
-extern void print_seg(char *file,int line);
-#define PLS() print_seg(__FILE__,__LINE__)
-#else /* CONFIG_SH_ALPHANUMERIC */
-#define PLS()
-#endif /* CONFIG_SH_ALPHANUMERIC */
-
-#define PL() printk("@ <%s,%s:%d>\n",__FILE__,__FUNCTION__,__LINE__)
-
-#endif /* __ASM_SH64_SYSTEM_H */
+++ /dev/null
-#ifndef __ASM_SH64_TERMBITS_H
-#define __ASM_SH64_TERMBITS_H
-
-#include <asm-sh/termbits.h>
-
-#endif /* __ASM_SH64_TERMBITS_H */
+++ /dev/null
-#ifndef __ASM_SH64_TERMIOS_H
-#define __ASM_SH64_TERMIOS_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/termios.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <asm/termbits.h>
-#include <asm/ioctls.h>
-
-struct winsize {
- unsigned short ws_row;
- unsigned short ws_col;
- unsigned short ws_xpixel;
- unsigned short ws_ypixel;
-};
-
-#define NCC 8
-struct termio {
- unsigned short c_iflag; /* input mode flags */
- unsigned short c_oflag; /* output mode flags */
- unsigned short c_cflag; /* control mode flags */
- unsigned short c_lflag; /* local mode flags */
- unsigned char c_line; /* line discipline */
- unsigned char c_cc[NCC]; /* control characters */
-};
-
-/* modem lines */
-#define TIOCM_LE 0x001
-#define TIOCM_DTR 0x002
-#define TIOCM_RTS 0x004
-#define TIOCM_ST 0x008
-#define TIOCM_SR 0x010
-#define TIOCM_CTS 0x020
-#define TIOCM_CAR 0x040
-#define TIOCM_RNG 0x080
-#define TIOCM_DSR 0x100
-#define TIOCM_CD TIOCM_CAR
-#define TIOCM_RI TIOCM_RNG
-#define TIOCM_OUT1 0x2000
-#define TIOCM_OUT2 0x4000
-#define TIOCM_LOOP 0x8000
-
-/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
-
-/* line disciplines */
-#define N_TTY 0
-#define N_SLIP 1
-#define N_MOUSE 2
-#define N_PPP 3
-#define N_STRIP 4
-#define N_AX25 5
-#define N_X25 6 /* X.25 async */
-#define N_6PACK 7
-#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */
-#define N_R3964 9 /* Reserved for Simatic R3964 module */
-#define N_PROFIBUS_FDL 10 /* Reserved for Profibus <Dave@mvhi.com> */
-#define N_IRDA 11 /* Linux IR - http://www.cs.uit.no/~dagb/irda/irda.html */
-#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data cards about SMS messages */
-#define N_HDLC 13 /* synchronous HDLC */
-#define N_SYNC_PPP 14
-#define N_HCI 15 /* Bluetooth HCI UART */
-
-#ifdef __KERNEL__
-
-/* intr=^C quit=^\ erase=del kill=^U
- eof=^D vtime=\0 vmin=\1 sxtc=\0
- start=^Q stop=^S susp=^Z eol=\0
- reprint=^R discard=^U werase=^W lnext=^V
- eol2=\0
-*/
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
-
-/*
- * Translate a "termio" structure into a "termios". Ugh.
- */
-#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \
- unsigned short __tmp; \
- get_user(__tmp,&(termio)->x); \
- *(unsigned short *) &(termios)->x = __tmp; \
-}
-
-#define user_termio_to_kernel_termios(termios, termio) \
-({ \
- SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \
- copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
-})
-
-/*
- * Translate a "termios" structure into a "termio". Ugh.
- */
-#define kernel_termios_to_user_termio(termio, termios) \
-({ \
- put_user((termios)->c_iflag, &(termio)->c_iflag); \
- put_user((termios)->c_oflag, &(termio)->c_oflag); \
- put_user((termios)->c_cflag, &(termio)->c_cflag); \
- put_user((termios)->c_lflag, &(termio)->c_lflag); \
- put_user((termios)->c_line, &(termio)->c_line); \
- copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
-})
-
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_SH64_TERMIOS_H */
+++ /dev/null
-#ifndef __ASM_SH64_THREAD_INFO_H
-#define __ASM_SH64_THREAD_INFO_H
-
-/*
- * SuperH 5 version
- * Copyright (C) 2003 Paul Mundt
- */
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-#include <asm/registers.h>
-
-/*
- * low level task data that entry.S needs immediate access to
- * - this struct should fit entirely inside of one cache line
- * - this struct shares the supervisor stack pages
- * - if the contents of this structure are changed, the assembly constants must also be changed
- */
-struct thread_info {
- struct task_struct *task; /* main task structure */
- struct exec_domain *exec_domain; /* execution domain */
- unsigned long flags; /* low level flags */
- /* Put the 4 32-bit fields together to make asm offsetting easier. */
- __s32 preempt_count; /* 0 => preemptable, <0 => BUG */
- __u16 cpu;
-
- mm_segment_t addr_limit;
- struct restart_block restart_block;
-
- __u8 supervisor_stack[0];
-};
-
-/*
- * macros/functions for gaining access to the thread information structure
- */
-#define INIT_THREAD_INFO(tsk) \
-{ \
- .task = &tsk, \
- .exec_domain = &default_exec_domain, \
- .flags = 0, \
- .cpu = 0, \
- .preempt_count = 1, \
- .addr_limit = KERNEL_DS, \
- .restart_block = { \
- .fn = do_no_restart_syscall, \
- }, \
-}
-
-#define init_thread_info (init_thread_union.thread_info)
-#define init_stack (init_thread_union.stack)
-
-/* how to get the thread information struct from C */
-static inline struct thread_info *current_thread_info(void)
-{
- struct thread_info *ti;
-
- __asm__ __volatile__ ("getcon " __KCR0 ", %0\n\t" : "=r" (ti));
-
- return ti;
-}
-
-/* thread information allocation */
-#define alloc_thread_info(ti) ((struct thread_info *) __get_free_pages(GFP_KERNEL,2))
-#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
-#define get_thread_info(ti) get_task_struct((ti)->task)
-#define put_thread_info(ti) put_task_struct((ti)->task)
-
-#endif /* __ASSEMBLY__ */
-
-#define PREEMPT_ACTIVE 0x4000000
-
-/* thread information flags */
-#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
-#define TIF_SIGPENDING 2 /* signal pending */
-#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
-
-#define THREAD_SIZE 16384
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_SH64_THREAD_INFO_H */
+++ /dev/null
-#ifndef __ASM_SH64_TIMEX_H
-#define __ASM_SH64_TIMEX_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/timex.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- * sh-5 architecture timex specifications
- *
- */
-
-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
-#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
-#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
- (1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
- << (SHIFT_SCALE-SHIFT_HZ)) / HZ)
-
-typedef unsigned long cycles_t;
-
-extern cycles_t cacheflush_time;
-
-static __inline__ cycles_t get_cycles (void)
-{
- return 0;
-}
-
-#define vxtime_lock() do {} while (0)
-#define vxtime_unlock() do {} while (0)
-
-#endif /* __ASM_SH64_TIMEX_H */
+++ /dev/null
-/*
- * include/asm-sh64/tlb.h
- *
- * Copyright (C) 2003 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#ifndef __ASM_SH64_TLB_H
-#define __ASM_SH64_TLB_H
-
-/*
- * Note! These are mostly unused, we just need the xTLB_LAST_VAR_UNRESTRICTED
- * for head.S! Once this limitation is gone, we can clean the rest of this up.
- */
-
-/* ITLB defines */
-#define ITLB_FIXED 0x00000000 /* First fixed ITLB, see head.S */
-#define ITLB_LAST_VAR_UNRESTRICTED 0x000003F0 /* Last ITLB */
-
-/* DTLB defines */
-#define DTLB_FIXED 0x00800000 /* First fixed DTLB, see head.S */
-#define DTLB_LAST_VAR_UNRESTRICTED 0x008003F0 /* Last DTLB */
-
-#ifndef __ASSEMBLY__
-
-/**
- * for_each_dtlb_entry
- *
- * @tlb: TLB entry
- *
- * Iterate over free (non-wired) DTLB entries
- */
-#define for_each_dtlb_entry(tlb) \
- for (tlb = cpu_data->dtlb.first; \
- tlb <= cpu_data->dtlb.last; \
- tlb += cpu_data->dtlb.step)
-
-/**
- * for_each_itlb_entry
- *
- * @tlb: TLB entry
- *
- * Iterate over free (non-wired) ITLB entries
- */
-#define for_each_itlb_entry(tlb) \
- for (tlb = cpu_data->itlb.first; \
- tlb <= cpu_data->itlb.last; \
- tlb += cpu_data->itlb.step)
-
-/**
- * __flush_tlb_slot
- *
- * @slot: Address of TLB slot.
- *
- * Flushes TLB slot @slot.
- */
-static inline void __flush_tlb_slot(unsigned long long slot)
-{
- __asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot));
-}
-
-/* arch/sh64/mm/tlb.c */
-extern int sh64_tlb_init(void);
-extern unsigned long long sh64_next_free_dtlb_entry(void);
-extern unsigned long long sh64_get_wired_dtlb_entry(void);
-extern int sh64_put_wired_dtlb_entry(unsigned long long entry);
-
-extern void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr, unsigned long asid, unsigned long paddr);
-extern void sh64_teardown_tlb_slot(unsigned long long config_addr);
-
-#define tlb_start_vma(tlb, vma) \
- flush_cache_range(vma, vma->vm_start, vma->vm_end)
-
-#define tlb_end_vma(tlb, vma) \
- flush_tlb_range(vma, vma->vm_start, vma->vm_end)
-
-#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
-
-/*
- * Flush whole TLBs for MM
- */
-#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
-
-#include <asm-generic/tlb.h>
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __ASM_SH64_TLB_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_TLBFLUSH_H
-#define __ASM_SH64_TLBFLUSH_H
-
-#include <asm/pgalloc.h>
-
-/*
- * TLB flushing:
- *
- * - flush_tlb() flushes the current mm struct TLBs
- * - flush_tlb_all() flushes all processes TLBs
- * - flush_tlb_mm(mm) flushes the specified mm context TLB's
- * - flush_tlb_page(vma, vmaddr) flushes one page
- * - flush_tlb_range(mm, start, end) flushes a range of pages
- *
- */
-
-extern void flush_tlb(void);
-extern void flush_tlb_all(void);
-extern void flush_tlb_mm(struct mm_struct *mm);
-extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end);
-extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
-extern inline void flush_tlb_pgtables(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
-}
-
-extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
-
-#endif /* __ASM_SH64_TLBFLUSH_H */
-
+++ /dev/null
-#ifndef __ASM_SH64_TOPOLOGY_H
-#define __ASM_SH64_TOPOLOGY_H
-
-#include <asm-generic/topology.h>
-
-#endif /* __ASM_SH64_TOPOLOGY_H */
+++ /dev/null
-#ifndef __ASM_SH64_TYPES_H
-#define __ASM_SH64_TYPES_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/types.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#ifndef __ASSEMBLY__
-
-typedef unsigned short umode_t;
-
-/*
- * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
- * header files exported to user space
- */
-
-typedef __signed__ char __s8;
-typedef unsigned char __u8;
-
-typedef __signed__ short __s16;
-typedef unsigned short __u16;
-
-typedef __signed__ int __s32;
-typedef unsigned int __u32;
-
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
-typedef __signed__ long long __s64;
-typedef unsigned long long __u64;
-#endif
-
-#endif /* __ASSEMBLY__ */
-
-/*
- * These aren't exported outside the kernel to avoid name space clashes
- */
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-typedef __signed__ char s8;
-typedef unsigned char u8;
-
-typedef __signed__ short s16;
-typedef unsigned short u16;
-
-typedef __signed__ int s32;
-typedef unsigned int u32;
-
-typedef __signed__ long long s64;
-typedef unsigned long long u64;
-
-/* DMA addresses come in generic and 64-bit flavours. */
-
-#ifdef CONFIG_HIGHMEM64G
-typedef u64 dma_addr_t;
-#else
-typedef u32 dma_addr_t;
-#endif
-typedef u64 dma64_addr_t;
-
-typedef unsigned int kmem_bufctl_t;
-
-#endif /* __ASSEMBLY__ */
-
-#define BITS_PER_LONG 32
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_SH64_TYPES_H */
+++ /dev/null
-#ifndef __ASM_SH64_UACCESS_H
-#define __ASM_SH64_UACCESS_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/uaccess.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- * User space memory access functions
- *
- * Copyright (C) 1999 Niibe Yutaka
- *
- * Based on:
- * MIPS implementation version 1.15 by
- * Copyright (C) 1996, 1997, 1998 by Ralf Baechle
- * and i386 version.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-
-#define VERIFY_READ 0
-#define VERIFY_WRITE 1
-
-/*
- * The fs value determines whether argument validity checking should be
- * performed or not. If get_fs() == USER_DS, checking is performed, with
- * get_fs() == KERNEL_DS, checking is bypassed.
- *
- * For historical reasons (Data Segment Register?), these macros are misnamed.
- */
-
-#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
-
-#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF)
-#define USER_DS MAKE_MM_SEG(0x80000000)
-
-#define get_ds() (KERNEL_DS)
-#define get_fs() (current_thread_info()->addr_limit)
-#define set_fs(x) (current_thread_info()->addr_limit=(x))
-
-#define segment_eq(a,b) ((a).seg == (b).seg)
-
-#define __addr_ok(addr) ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg))
-
-/*
- * Uhhuh, this needs 33-bit arithmetic. We have a carry..
- *
- * sum := addr + size; carry? --> flag = true;
- * if (sum >= addr_limit) flag = true;
- */
-#define __range_ok(addr,size) (((unsigned long) (addr) + (size) < (current_thread_info()->addr_limit.seg)) ? 0 : 1)
-
-#define access_ok(type,addr,size) (__range_ok(addr,size) == 0)
-#define __access_ok(addr,size) (__range_ok(addr,size) == 0)
-
-extern inline int verify_area(int type, const void __user * addr, unsigned long size)
-{
- return access_ok(type,addr,size) ? 0 : -EFAULT;
-}
-
-/*
- * Uh, these should become the main single-value transfer routines ...
- * They automatically use the right size if we just have the right
- * pointer type ...
- *
- * As MIPS uses the same address space for kernel and user data, we
- * can just do these as direct assignments.
- *
- * Careful to not
- * (a) re-use the arguments for side effects (sizeof is ok)
- * (b) require any knowledge of processes at this stage
- */
-#define put_user(x,ptr) __put_user_check((x),(ptr),sizeof(*(ptr)))
-#define get_user(x,ptr) __get_user_check((x),(ptr),sizeof(*(ptr)))
-
-/*
- * The "__xxx" versions do not do address space checking, useful when
- * doing multiple accesses to the same area (the user has to do the
- * checks by hand with "access_ok()")
- */
-#define __put_user(x,ptr) __put_user_nocheck((x),(ptr),sizeof(*(ptr)))
-#define __get_user(x,ptr) __get_user_nocheck((x),(ptr),sizeof(*(ptr)))
-
-/*
- * The "xxx_ret" versions return constant specified in third argument, if
- * something bad happens. These macros can be optimized for the
- * case of just returning from the function xxx_ret is used.
- */
-
-#define put_user_ret(x,ptr,ret) ({ \
-if (put_user(x,ptr)) return ret; })
-
-#define get_user_ret(x,ptr,ret) ({ \
-if (get_user(x,ptr)) return ret; })
-
-#define __put_user_ret(x,ptr,ret) ({ \
-if (__put_user(x,ptr)) return ret; })
-
-#define __get_user_ret(x,ptr,ret) ({ \
-if (__get_user(x,ptr)) return ret; })
-
-struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct *)(x))
-
-#define __get_user_size(x,ptr,size,retval) \
-do { \
- retval = 0; \
- switch (size) { \
- case 1: \
- retval = __get_user_asm_b(x, ptr); \
- break; \
- case 2: \
- retval = __get_user_asm_w(x, ptr); \
- break; \
- case 4: \
- retval = __get_user_asm_l(x, ptr); \
- break; \
- case 8: \
- retval = __get_user_asm_q(x, ptr); \
- break; \
- default: \
- __get_user_unknown(); \
- break; \
- } \
-} while (0)
-
-#define __get_user_nocheck(x,ptr,size) \
-({ \
- long __gu_addr = (long)(ptr); \
- long __gu_err; \
- __typeof(*(ptr)) __gu_val; \
- __asm__ ("":"=r" (__gu_val)); \
- __asm__ ("":"=r" (__gu_err)); \
- __get_user_size((void *)&__gu_val, __gu_addr, (size), __gu_err); \
- (x) = (__typeof__(*(ptr))) __gu_val; \
- __gu_err; \
-})
-
-#define __get_user_check(x,ptr,size) \
-({ \
- long __gu_addr = (long)(ptr); \
- long __gu_err = -EFAULT; \
- __typeof(*(ptr)) __gu_val; \
- __asm__ ("":"=r" (__gu_val)); \
- __asm__ ("":"=r" (__gu_err)); \
- if (__access_ok(__gu_addr, (size))) \
- __get_user_size((void *)&__gu_val, __gu_addr, (size), __gu_err); \
- (x) = (__typeof__(*(ptr))) __gu_val; \
- __gu_err; \
-})
-
-extern long __get_user_asm_b(void *, long);
-extern long __get_user_asm_w(void *, long);
-extern long __get_user_asm_l(void *, long);
-extern long __get_user_asm_q(void *, long);
-extern void __get_user_unknown(void);
-
-#define __put_user_size(x,ptr,size,retval) \
-do { \
- retval = 0; \
- switch (size) { \
- case 1: \
- retval = __put_user_asm_b(x, ptr); \
- break; \
- case 2: \
- retval = __put_user_asm_w(x, ptr); \
- break; \
- case 4: \
- retval = __put_user_asm_l(x, ptr); \
- break; \
- case 8: \
- retval = __put_user_asm_q(x, ptr); \
- break; \
- default: \
- __put_user_unknown(); \
- } \
-} while (0)
-
-#define __put_user_nocheck(x,ptr,size) \
-({ \
- long __pu_err; \
- __typeof__(*(ptr)) __pu_val = (x); \
- __put_user_size((void *)&__pu_val, (long)(ptr), (size), __pu_err); \
- __pu_err; \
-})
-
-#define __put_user_check(x,ptr,size) \
-({ \
- long __pu_err = -EFAULT; \
- long __pu_addr = (long)(ptr); \
- __typeof__(*(ptr)) __pu_val = (x); \
- \
- if (__access_ok(__pu_addr, (size))) \
- __put_user_size((void *)&__pu_val, __pu_addr, (size), __pu_err);\
- __pu_err; \
-})
-
-extern long __put_user_asm_b(void *, long);
-extern long __put_user_asm_w(void *, long);
-extern long __put_user_asm_l(void *, long);
-extern long __put_user_asm_q(void *, long);
-extern void __put_user_unknown(void);
-
-\f
-/* Generic arbitrary sized copy. */
-/* Return the number of bytes NOT copied */
-/* XXX: should be such that: 4byte and the rest. */
-extern __kernel_size_t __copy_user(void *__to, const void *__from, __kernel_size_t __n);
-
-#define copy_to_user(to,from,n) ({ \
-void *__copy_to = (void *) (to); \
-__kernel_size_t __copy_size = (__kernel_size_t) (n); \
-__kernel_size_t __copy_res; \
-if(__copy_size && __access_ok((unsigned long)__copy_to, __copy_size)) { \
-__copy_res = __copy_user(__copy_to, (void *) (from), __copy_size); \
-} else __copy_res = __copy_size; \
-__copy_res; })
-
-#define copy_to_user_ret(to,from,n,retval) ({ \
-if (copy_to_user(to,from,n)) \
- return retval; \
-})
-
-#define __copy_to_user(to,from,n) \
- __copy_user((void *)(to), \
- (void *)(from), n)
-
-#define __copy_to_user_ret(to,from,n,retval) ({ \
-if (__copy_to_user(to,from,n)) \
- return retval; \
-})
-
-#define copy_from_user(to,from,n) ({ \
-void *__copy_to = (void *) (to); \
-void *__copy_from = (void *) (from); \
-__kernel_size_t __copy_size = (__kernel_size_t) (n); \
-__kernel_size_t __copy_res; \
-if(__copy_size && __access_ok((unsigned long)__copy_from, __copy_size)) { \
-__copy_res = __copy_user(__copy_to, __copy_from, __copy_size); \
-} else __copy_res = __copy_size; \
-__copy_res; })
-
-#define copy_from_user_ret(to,from,n,retval) ({ \
-if (copy_from_user(to,from,n)) \
- return retval; \
-})
-
-#define __copy_from_user(to,from,n) \
- __copy_user((void *)(to), \
- (void *)(from), n)
-
-#define __copy_from_user_ret(to,from,n,retval) ({ \
-if (__copy_from_user(to,from,n)) \
- return retval; \
-})
-
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
-
-/* XXX: Not sure it works well..
- should be such that: 4byte clear and the rest. */
-extern __kernel_size_t __clear_user(void *addr, __kernel_size_t size);
-
-#define clear_user(addr,n) ({ \
-void * __cl_addr = (addr); \
-unsigned long __cl_size = (n); \
-if (__cl_size && __access_ok(((unsigned long)(__cl_addr)), __cl_size)) \
-__cl_size = __clear_user(__cl_addr, __cl_size); \
-__cl_size; })
-
-extern int __strncpy_from_user(unsigned long __dest, unsigned long __src, int __count);
-
-#define strncpy_from_user(dest,src,count) ({ \
-unsigned long __sfu_src = (unsigned long) (src); \
-int __sfu_count = (int) (count); \
-long __sfu_res = -EFAULT; \
-if(__access_ok(__sfu_src, __sfu_count)) { \
-__sfu_res = __strncpy_from_user((unsigned long) (dest), __sfu_src, __sfu_count); \
-} __sfu_res; })
-
-#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
-
-/*
- * Return the size of a string (including the ending 0!)
- */
-extern long __strnlen_user(const char *__s, long __n);
-
-extern __inline__ long strnlen_user(const char *s, long n)
-{
- if (!__addr_ok(s))
- return 0;
- else
- return __strnlen_user(s, n);
-}
-
-struct exception_table_entry
-{
- unsigned long insn, fixup;
-};
-
-#define ARCH_HAS_SEARCH_EXTABLE
-
-/* If gcc inlines memset, it will use st.q instructions. Therefore, we need
- kmalloc allocations to be 8-byte aligned. Without this, the alignment
- becomes BYTE_PER_WORD i.e. only 4 (since sizeof(long)==sizeof(void*)==4 on
- sh64 at the moment). */
-#define ARCH_KMALLOC_MINALIGN 8
-
-/* Returns 0 if exception not found and fixup.unit otherwise. */
-extern unsigned long search_exception_table(unsigned long addr);
-extern const struct exception_table_entry *search_exception_tables (unsigned long addr);
-
-#endif /* __ASM_SH64_UACCESS_H */
+++ /dev/null
-#ifndef __ASM_SH64_UCONTEXT_H
-#define __ASM_SH64_UCONTEXT_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/ucontext.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-struct ucontext {
- unsigned long uc_flags;
- struct ucontext *uc_link;
- stack_t uc_stack;
- struct sigcontext uc_mcontext;
- sigset_t uc_sigmask; /* mask last for extensibility */
-};
-
-#endif /* __ASM_SH64_UCONTEXT_H */
+++ /dev/null
-#ifndef __ASM_SH64_UNALIGNED_H
-#define __ASM_SH64_UNALIGNED_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/unaligned.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <linux/string.h>
-
-
-/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
-
-#define get_unaligned(ptr) \
- ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
-
-#define put_unaligned(val, ptr) \
- ({ __typeof__(*(ptr)) __tmp = (val); \
- memmove((ptr), &__tmp, sizeof(*(ptr))); \
- (void)0; })
-
-#endif /* __ASM_SH64_UNALIGNED_H */
+++ /dev/null
-#ifndef __ASM_SH64_UNISTD_H
-#define __ASM_SH64_UNISTD_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/unistd.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- * Copyright (C) 2004 Sean McGoogan
- *
- * This file contains the system call numbers.
- *
- */
-
-#define __NR_setup 0 /* used only by init, to get system going */
-#define __NR_exit 1
-#define __NR_fork 2
-#define __NR_read 3
-#define __NR_write 4
-#define __NR_open 5
-#define __NR_close 6
-#define __NR_waitpid 7
-#define __NR_creat 8
-#define __NR_link 9
-#define __NR_unlink 10
-#define __NR_execve 11
-#define __NR_chdir 12
-#define __NR_time 13
-#define __NR_mknod 14
-#define __NR_chmod 15
-#define __NR_lchown 16
-#define __NR_break 17
-#define __NR_oldstat 18
-#define __NR_lseek 19
-#define __NR_getpid 20
-#define __NR_mount 21
-#define __NR_umount 22
-#define __NR_setuid 23
-#define __NR_getuid 24
-#define __NR_stime 25
-#define __NR_ptrace 26
-#define __NR_alarm 27
-#define __NR_oldfstat 28
-#define __NR_pause 29
-#define __NR_utime 30
-#define __NR_stty 31
-#define __NR_gtty 32
-#define __NR_access 33
-#define __NR_nice 34
-#define __NR_ftime 35
-#define __NR_sync 36
-#define __NR_kill 37
-#define __NR_rename 38
-#define __NR_mkdir 39
-#define __NR_rmdir 40
-#define __NR_dup 41
-#define __NR_pipe 42
-#define __NR_times 43
-#define __NR_prof 44
-#define __NR_brk 45
-#define __NR_setgid 46
-#define __NR_getgid 47
-#define __NR_signal 48
-#define __NR_geteuid 49
-#define __NR_getegid 50
-#define __NR_acct 51
-#define __NR_umount2 52
-#define __NR_lock 53
-#define __NR_ioctl 54
-#define __NR_fcntl 55
-#define __NR_mpx 56
-#define __NR_setpgid 57
-#define __NR_ulimit 58
-#define __NR_oldolduname 59
-#define __NR_umask 60
-#define __NR_chroot 61
-#define __NR_ustat 62
-#define __NR_dup2 63
-#define __NR_getppid 64
-#define __NR_getpgrp 65
-#define __NR_setsid 66
-#define __NR_sigaction 67
-#define __NR_sgetmask 68
-#define __NR_ssetmask 69
-#define __NR_setreuid 70
-#define __NR_setregid 71
-#define __NR_sigsuspend 72
-#define __NR_sigpending 73
-#define __NR_sethostname 74
-#define __NR_setrlimit 75
-#define __NR_getrlimit 76 /* Back compatible 2Gig limited rlimit */
-#define __NR_getrusage 77
-#define __NR_gettimeofday 78
-#define __NR_settimeofday 79
-#define __NR_getgroups 80
-#define __NR_setgroups 81
-#define __NR_select 82
-#define __NR_symlink 83
-#define __NR_oldlstat 84
-#define __NR_readlink 85
-#define __NR_uselib 86
-#define __NR_swapon 87
-#define __NR_reboot 88
-#define __NR_readdir 89
-#define __NR_mmap 90
-#define __NR_munmap 91
-#define __NR_truncate 92
-#define __NR_ftruncate 93
-#define __NR_fchmod 94
-#define __NR_fchown 95
-#define __NR_getpriority 96
-#define __NR_setpriority 97
-#define __NR_profil 98
-#define __NR_statfs 99
-#define __NR_fstatfs 100
-#define __NR_ioperm 101
-#define __NR_socketcall 102 /* old implementation of socket systemcall */
-#define __NR_syslog 103
-#define __NR_setitimer 104
-#define __NR_getitimer 105
-#define __NR_stat 106
-#define __NR_lstat 107
-#define __NR_fstat 108
-#define __NR_olduname 109
-#define __NR_iopl 110
-#define __NR_vhangup 111
-#define __NR_idle 112
-#define __NR_vm86old 113
-#define __NR_wait4 114
-#define __NR_swapoff 115
-#define __NR_sysinfo 116
-#define __NR_ipc 117
-#define __NR_fsync 118
-#define __NR_sigreturn 119
-#define __NR_clone 120
-#define __NR_setdomainname 121
-#define __NR_uname 122
-#define __NR_modify_ldt 123
-#define __NR_adjtimex 124
-#define __NR_mprotect 125
-#define __NR_sigprocmask 126
-#define __NR_create_module 127
-#define __NR_init_module 128
-#define __NR_delete_module 129
-#define __NR_get_kernel_syms 130
-#define __NR_quotactl 131
-#define __NR_getpgid 132
-#define __NR_fchdir 133
-#define __NR_bdflush 134
-#define __NR_sysfs 135
-#define __NR_personality 136
-#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
-#define __NR_setfsuid 138
-#define __NR_setfsgid 139
-#define __NR__llseek 140
-#define __NR_getdents 141
-#define __NR__newselect 142
-#define __NR_flock 143
-#define __NR_msync 144
-#define __NR_readv 145
-#define __NR_writev 146
-#define __NR_getsid 147
-#define __NR_fdatasync 148
-#define __NR__sysctl 149
-#define __NR_mlock 150
-#define __NR_munlock 151
-#define __NR_mlockall 152
-#define __NR_munlockall 153
-#define __NR_sched_setparam 154
-#define __NR_sched_getparam 155
-#define __NR_sched_setscheduler 156
-#define __NR_sched_getscheduler 157
-#define __NR_sched_yield 158
-#define __NR_sched_get_priority_max 159
-#define __NR_sched_get_priority_min 160
-#define __NR_sched_rr_get_interval 161
-#define __NR_nanosleep 162
-#define __NR_mremap 163
-#define __NR_setresuid 164
-#define __NR_getresuid 165
-#define __NR_vm86 166
-#define __NR_query_module 167
-#define __NR_poll 168
-#define __NR_nfsservctl 169
-#define __NR_setresgid 170
-#define __NR_getresgid 171
-#define __NR_prctl 172
-#define __NR_rt_sigreturn 173
-#define __NR_rt_sigaction 174
-#define __NR_rt_sigprocmask 175
-#define __NR_rt_sigpending 176
-#define __NR_rt_sigtimedwait 177
-#define __NR_rt_sigqueueinfo 178
-#define __NR_rt_sigsuspend 179
-#define __NR_pread 180
-#define __NR_pwrite 181
-#define __NR_chown 182
-#define __NR_getcwd 183
-#define __NR_capget 184
-#define __NR_capset 185
-#define __NR_sigaltstack 186
-#define __NR_sendfile 187
-#define __NR_streams1 188 /* some people actually want it */
-#define __NR_streams2 189 /* some people actually want it */
-#define __NR_vfork 190
-#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */
-#define __NR_mmap2 192
-#define __NR_truncate64 193
-#define __NR_ftruncate64 194
-#define __NR_stat64 195
-#define __NR_lstat64 196
-#define __NR_fstat64 197
-#define __NR_lchown32 198
-#define __NR_getuid32 199
-#define __NR_getgid32 200
-#define __NR_geteuid32 201
-#define __NR_getegid32 202
-#define __NR_setreuid32 203
-#define __NR_setregid32 204
-#define __NR_getgroups32 205
-#define __NR_setgroups32 206
-#define __NR_fchown32 207
-#define __NR_setresuid32 208
-#define __NR_getresuid32 209
-#define __NR_setresgid32 210
-#define __NR_getresgid32 211
-#define __NR_chown32 212
-#define __NR_setuid32 213
-#define __NR_setgid32 214
-#define __NR_setfsuid32 215
-#define __NR_setfsgid32 216
-#define __NR_pivot_root 217
-#define __NR_mincore 218
-#define __NR_madvise 219
-
-/* Non-multiplexed socket family */
-#define __NR_socket 220
-#define __NR_bind 221
-#define __NR_connect 222
-#define __NR_listen 223
-#define __NR_accept 224
-#define __NR_getsockname 225
-#define __NR_getpeername 226
-#define __NR_socketpair 227
-#define __NR_send 228
-#define __NR_sendto 229
-#define __NR_recv 230
-#define __NR_recvfrom 231
-#define __NR_shutdown 232
-#define __NR_setsockopt 233
-#define __NR_getsockopt 234
-#define __NR_sendmsg 235
-#define __NR_recvmsg 236
-
-/* Non-multiplexed IPC family */
-#define __NR_semop 237
-#define __NR_semget 238
-#define __NR_semctl 239
-#define __NR_msgsnd 240
-#define __NR_msgrcv 241
-#define __NR_msgget 242
-#define __NR_msgctl 243
-#if 0
-#define __NR_shmatcall 244
-#endif
-#define __NR_shmdt 245
-#define __NR_shmget 246
-#define __NR_shmctl 247
-
-#define __NR_getdents64 248
-#define __NR_fcntl64 249
-/* 223 is unused */
-#define __NR_gettid 252
-#define __NR_readahead 253
-#define __NR_setxattr 254
-#define __NR_lsetxattr 255
-#define __NR_fsetxattr 256
-#define __NR_getxattr 257
-#define __NR_lgetxattr 258
-#define __NR_fgetxattr 269
-#define __NR_listxattr 260
-#define __NR_llistxattr 261
-#define __NR_flistxattr 262
-#define __NR_removexattr 263
-#define __NR_lremovexattr 264
-#define __NR_fremovexattr 265
-#define __NR_tkill 266
-#define __NR_sendfile64 267
-#define __NR_futex 268
-#define __NR_sched_setaffinity 269
-#define __NR_sched_getaffinity 270
-#define __NR_set_thread_area 271
-#define __NR_get_thread_area 272
-#define __NR_io_setup 273
-#define __NR_io_destroy 274
-#define __NR_io_getevents 275
-#define __NR_io_submit 276
-#define __NR_io_cancel 277
-#define __NR_fadvise64 278
-#define __NR_exit_group 280
-
-#define __NR_lookup_dcookie 281
-#define __NR_epoll_create 282
-#define __NR_epoll_ctl 283
-#define __NR_epoll_wait 284
-#define __NR_remap_file_pages 285
-#define __NR_set_tid_address 286
-#define __NR_timer_create 287
-#define __NR_timer_settime (__NR_timer_create+1)
-#define __NR_timer_gettime (__NR_timer_create+2)
-#define __NR_timer_getoverrun (__NR_timer_create+3)
-#define __NR_timer_delete (__NR_timer_create+4)
-#define __NR_clock_settime (__NR_timer_create+5)
-#define __NR_clock_gettime (__NR_timer_create+6)
-#define __NR_clock_getres (__NR_timer_create+7)
-#define __NR_clock_nanosleep (__NR_timer_create+8)
-#define __NR_statfs64 296
-#define __NR_fstatfs64 297
-#define __NR_tgkill 298
-#define __NR_utimes 299
-#define __NR_fadvise64_64 300
-#define __NR_vserver 301
-#define __NR_mbind 302
-#define __NR_get_mempolicy 303
-#define __NR_set_mempolicy 304
-#define __NR_mq_open 305
-#define __NR_mq_unlink (__NR_mq_open+1)
-#define __NR_mq_timedsend (__NR_mq_open+2)
-#define __NR_mq_timedreceive (__NR_mq_open+3)
-#define __NR_mq_notify (__NR_mq_open+4)
-#define __NR_mq_getsetattr (__NR_mq_open+5)
-
-#define NR_syscalls 311
-
-/* user-visible error numbers are in the range -1 - -125: see <asm-sh64/errno.h> */
-
-#define __syscall_return(type, res) \
-do { \
- /* Note: when returning from kernel the return value is in r9 \
- ** This prevents conflicts between return value and arg1 \
- ** when dispatching signal handler, in other words makes \
- ** life easier in the system call epilogue (see entry.S) \
- */ \
- register unsigned long __sr2 __asm__ ("r2") = res; \
- if ((unsigned long)(res) >= (unsigned long)(-125)) { \
- errno = -(res); \
- __sr2 = -1; \
- } \
- return (type) (__sr2); \
-} while (0)
-
-/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
-
-#define _syscall0(type,name) \
-type name(void) \
-{ \
-register unsigned long __sc0 __asm__ ("r9") = ((0x10 << 16) | __NR_##name); \
-__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "()" \
- : "=r" (__sc0) \
- : "r" (__sc0) ); \
-__syscall_return(type,__sc0); \
-}
-
- /*
- * The apparent spurious "dummy" assembler comment is *needed*,
- * as without it, the compiler treats the arg<n> variables
- * as no longer live just before the asm. The compiler can
- * then optimize the storage into any registers it wishes.
- * The additional dummy statement forces the compiler to put
- * the arguments into the correct registers before the TRAPA.
- */
-#define _syscall1(type,name,type1,arg1) \
-type name(type1 arg1) \
-{ \
-register unsigned long __sc0 __asm__ ("r9") = ((0x11 << 16) | __NR_##name); \
-register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
-__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2)" \
- : "=r" (__sc0) \
- : "r" (__sc0), "r" (__sc2)); \
-__asm__ __volatile__ ("!dummy %0 %1" \
- : \
- : "r" (__sc0), "r" (__sc2)); \
-__syscall_return(type,__sc0); \
-}
-
-#define _syscall2(type,name,type1,arg1,type2,arg2) \
-type name(type1 arg1,type2 arg2) \
-{ \
-register unsigned long __sc0 __asm__ ("r9") = ((0x12 << 16) | __NR_##name); \
-register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
-register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
-__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3)" \
- : "=r" (__sc0) \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3) ); \
-__asm__ __volatile__ ("!dummy %0 %1 %2" \
- : \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3) ); \
-__syscall_return(type,__sc0); \
-}
-
-#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
-type name(type1 arg1,type2 arg2,type3 arg3) \
-{ \
-register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_##name); \
-register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
-register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
-register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \
-__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3,%4)" \
- : "=r" (__sc0) \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) ); \
-__asm__ __volatile__ ("!dummy %0 %1 %2 %3" \
- : \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) ); \
-__syscall_return(type,__sc0); \
-}
-
-#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
-type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
-{ \
-register unsigned long __sc0 __asm__ ("r9") = ((0x14 << 16) | __NR_##name); \
-register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
-register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
-register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \
-register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \
-__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3,%4,%5)" \
- : "=r" (__sc0) \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5) );\
-__asm__ __volatile__ ("!dummy %0 %1 %2 %3 %4" \
- : \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5) );\
-__syscall_return(type,__sc0); \
-}
-
-#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
-type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
-{ \
-register unsigned long __sc0 __asm__ ("r9") = ((0x15 << 16) | __NR_##name); \
-register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
-register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
-register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \
-register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \
-register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5; \
-__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3,%4,%5,%6)" \
- : "=r" (__sc0) \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
- "r" (__sc6)); \
-__asm__ __volatile__ ("!dummy %0 %1 %2 %3 %4 %5" \
- : \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
- "r" (__sc6)); \
-__syscall_return(type,__sc0); \
-}
-
-#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5, type6, arg6) \
-type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
-{ \
-register unsigned long __sc0 __asm__ ("r9") = ((0x16 << 16) | __NR_##name); \
-register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
-register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
-register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \
-register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \
-register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5; \
-register unsigned long __sc7 __asm__ ("r7") = (unsigned long) arg6; \
-__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3,%4,%5,%6,%7)" \
- : "=r" (__sc0) \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
- "r" (__sc6), "r" (__sc7)); \
-__asm__ __volatile__ ("!dummy %0 %1 %2 %3 %4 %5 %6" \
- : \
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
- "r" (__sc6), "r" (__sc7)); \
-__syscall_return(type,__sc0); \
-}
-
-#ifdef __KERNEL__
-#define __ARCH_WANT_IPC_PARSE_VERSION
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_RT_SIGACTION
-#endif
-
-#ifdef __KERNEL_SYSCALLS__
-
-/* Copy from sh */
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <asm/ptrace.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static inline _syscall0(int,pause)
-static inline _syscall1(int,setup,int,magic)
-static inline _syscall0(int,sync)
-static inline _syscall0(pid_t,setsid)
-static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
-static inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static inline _syscall1(int,dup,int,fd)
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
-static inline _syscall1(int,close,int,fd)
-static inline _syscall1(int,_exit,int,exitcode)
-static inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-static inline _syscall1(int,delete_module,const char *,name)
-
-static inline pid_t wait(int * wait_stat)
-{
- return waitpid(-1,wait_stat,0);
-}
-#endif
-
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#ifndef cond_syscall
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
-#endif
-
-#endif /* __ASM_SH64_UNISTD_H */
+++ /dev/null
-#ifndef __ASM_SH64_USER_H
-#define __ASM_SH64_USER_H
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/user.h
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <linux/types.h>
-#include <asm/processor.h>
-#include <asm/ptrace.h>
-#include <asm/page.h>
-
-/*
- * Core file format: The core file is written in such a way that gdb
- * can understand it and provide useful information to the user (under
- * linux we use the `trad-core' bfd). The file contents are as follows:
- *
- * upage: 1 page consisting of a user struct that tells gdb
- * what is present in the file. Directly after this is a
- * copy of the task_struct, which is currently not used by gdb,
- * but it may come in handy at some point. All of the registers
- * are stored as part of the upage. The upage should always be
- * only one page long.
- * data: The data segment follows next. We use current->end_text to
- * current->brk to pick up all of the user variables, plus any memory
- * that may have been sbrk'ed. No attempt is made to determine if a
- * page is demand-zero or if a page is totally unused, we just cover
- * the entire range. All of the addresses are rounded in such a way
- * that an integral number of pages is written.
- * stack: We need the stack information in order to get a meaningful
- * backtrace. We need to write the data from usp to
- * current->start_stack, so we round each of these in order to be able
- * to write an integer number of pages.
- */
-
-struct user_fpu_struct {
- unsigned long long fp_regs[32];
- unsigned int fpscr;
-};
-
-struct user {
- struct pt_regs regs; /* entire machine state */
- struct user_fpu_struct fpu; /* Math Co-processor registers */
- int u_fpvalid; /* True if math co-processor being used */
- size_t u_tsize; /* text size (pages) */
- size_t u_dsize; /* data size (pages) */
- size_t u_ssize; /* stack size (pages) */
- unsigned long start_code; /* text starting address */
- unsigned long start_data; /* data starting address */
- unsigned long start_stack; /* stack starting address */
- long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
- struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */
- unsigned long magic; /* identifies a core file */
- char u_comm[32]; /* user command name */
-};
-
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_DATA_START_ADDR (u.start_data)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
-
-#endif /* __ASM_SH64_USER_H */
+++ /dev/null
-#ifndef _SPARC_RMAP_H
-#define _SPARC_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-#ifndef _SPARC64_CMT_H
-#define _SPARC64_CMT_H
-
-/* cmt.h: Chip Multi-Threading register definitions
- *
- * Copyright (C) 2004 David S. Miller (davem@redhat.com)
- */
-
-/* ASI_CORE_ID - private */
-#define LP_ID 0x0000000000000010UL
-#define LP_ID_MAX 0x00000000003f0000UL
-#define LP_ID_ID 0x000000000000003fUL
-
-/* ASI_INTR_ID - private */
-#define LP_INTR_ID 0x0000000000000000UL
-#define LP_INTR_ID_ID 0x00000000000003ffUL
-
-/* ASI_CESR_ID - private */
-#define CESR_ID 0x0000000000000040UL
-#define CESR_ID_ID 0x00000000000000ffUL
-
-/* ASI_CORE_AVAILABLE - shared */
-#define LP_AVAIL 0x0000000000000000UL
-#define LP_AVAIL_1 0x0000000000000002UL
-#define LP_AVAIL_0 0x0000000000000001UL
-
-/* ASI_CORE_ENABLE_STATUS - shared */
-#define LP_ENAB_STAT 0x0000000000000010UL
-#define LP_ENAB_STAT_1 0x0000000000000002UL
-#define LP_ENAB_STAT_0 0x0000000000000001UL
-
-/* ASI_CORE_ENABLE - shared */
-#define LP_ENAB 0x0000000000000020UL
-#define LP_ENAB_1 0x0000000000000002UL
-#define LP_ENAB_0 0x0000000000000001UL
-
-/* ASI_CORE_RUNNING - shared */
-#define LP_RUNNING_RW 0x0000000000000050UL
-#define LP_RUNNING_W1S 0x0000000000000060UL
-#define LP_RUNNING_W1C 0x0000000000000068UL
-#define LP_RUNNING_1 0x0000000000000002UL
-#define LP_RUNNING_0 0x0000000000000001UL
-
-/* ASI_CORE_RUNNING_STAT - shared */
-#define LP_RUN_STAT 0x0000000000000058UL
-#define LP_RUN_STAT_1 0x0000000000000002UL
-#define LP_RUN_STAT_0 0x0000000000000001UL
-
-/* ASI_XIR_STEERING - shared */
-#define LP_XIR_STEER 0x0000000000000030UL
-#define LP_XIR_STEER_1 0x0000000000000002UL
-#define LP_XIR_STEER_0 0x0000000000000001UL
-
-/* ASI_CMT_ERROR_STEERING - shared */
-#define CMT_ER_STEER 0x0000000000000040UL
-#define CMT_ER_STEER_1 0x0000000000000002UL
-#define CMT_ER_STEER_0 0x0000000000000001UL
-
-#endif /* _SPARC64_CMT_H */
+++ /dev/null
-#ifndef _SPARC64_RMAP_H
-#define _SPARC64_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-#ifndef __UM_MODULE_H
-#define __UM_MODULE_H
-
-/* UML is simple */
-struct mod_arch_specific
-{
-};
-
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-
-#endif
+++ /dev/null
-/*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Derived from include/asm-i386/pgtable.h
- * Licensed under the GPL
- */
-
-#ifndef __UM_PGTABLE_H
-#define __UM_PGTABLE_H
-
-#include "linux/sched.h"
-#include "asm/processor.h"
-#include "asm/page.h"
-#include "asm/fixmap.h"
-
-extern pgd_t swapper_pg_dir[1024];
-
-extern void *um_virt_to_phys(struct task_struct *task, unsigned long virt,
- pte_t *pte_out);
-
-/* zero page used for uninitialized stuff */
-extern unsigned long *empty_zero_page;
-
-#define pgtable_cache_init() do ; while (0)
-
-/* PMD_SHIFT determines the size of the area a second-level page table can map */
-#define PMD_SHIFT 22
-#define PMD_SIZE (1UL << PMD_SHIFT)
-#define PMD_MASK (~(PMD_SIZE-1))
-
-/* PGDIR_SHIFT determines what a third-level page table entry can map */
-#define PGDIR_SHIFT 22
-#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-
-/*
- * entries per page directory level: the i386 is two-level, so
- * we don't really have any PMD directory physically.
- */
-#define PTRS_PER_PTE 1024
-#define PTRS_PER_PMD 1
-#define PTRS_PER_PGD 1024
-#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
-
-#define pte_ERROR(e) \
- printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
-#define pmd_ERROR(e) \
- printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
-#define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
-
-/*
- * pgd entries used up by user/kernel:
- */
-
-#define USER_PGD_PTRS (TASK_SIZE >> PGDIR_SHIFT)
-#define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS)
-
-#ifndef __ASSEMBLY__
-/* Just any arbitrary offset to the start of the vmalloc VM area: the
- * current 8MB value just means that there will be a 8MB "hole" after the
- * physical memory until the kernel virtual memory starts. That means that
- * any out-of-bounds memory accesses will hopefully be caught.
- * The vmalloc() routines leaves a hole of 4kB between each vmalloced
- * area for the same reason. ;)
- */
-
-extern unsigned long high_physmem;
-
-#define VMALLOC_OFFSET (__va_space)
-#define VMALLOC_START (((unsigned long) high_physmem + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
-
-#ifdef CONFIG_HIGHMEM
-# define VMALLOC_END (PKMAP_BASE-2*PAGE_SIZE)
-#else
-# define VMALLOC_END (FIXADDR_START-2*PAGE_SIZE)
-#endif
-
-#define _PAGE_PRESENT 0x001
-#define _PAGE_NEWPAGE 0x002
-#define _PAGE_PROTNONE 0x004 /* If not present */
-#define _PAGE_RW 0x008
-#define _PAGE_USER 0x010
-#define _PAGE_ACCESSED 0x020
-#define _PAGE_DIRTY 0x040
-#define _PAGE_NEWPROT 0x080
-
-#define REGION_MASK 0xf0000000
-#define REGION_SHIFT 28
-
-#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
-
-#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
-#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
-#define PAGE_KERNEL_RO __pgprot(_PAGE_PRESENT | _PAGE_DIRTY | _PAGE_ACCESSED)
-
-/*
- * The i386 can't do page protection for execute, and considers that the same are read.
- * Also, write permissions imply read permissions. This is the closest we can get..
- */
-#define __P000 PAGE_NONE
-#define __P001 PAGE_READONLY
-#define __P010 PAGE_COPY
-#define __P011 PAGE_COPY
-#define __P100 PAGE_READONLY
-#define __P101 PAGE_READONLY
-#define __P110 PAGE_COPY
-#define __P111 PAGE_COPY
-
-#define __S000 PAGE_NONE
-#define __S001 PAGE_READONLY
-#define __S010 PAGE_SHARED
-#define __S011 PAGE_SHARED
-#define __S100 PAGE_READONLY
-#define __S101 PAGE_READONLY
-#define __S110 PAGE_SHARED
-#define __S111 PAGE_SHARED
-
-/*
- * Define this if things work differently on an i386 and an i486:
- * it will (on an i486) warn about kernel memory accesses that are
- * done without a 'verify_area(VERIFY_WRITE,..)'
- */
-#undef TEST_VERIFY_AREA
-
-/* page table for 0-4MB for everybody */
-extern unsigned long pg0[1024];
-
-/*
- * BAD_PAGETABLE is used when we need a bogus page-table, while
- * BAD_PAGE is used for a bogus page.
- *
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern pte_t __bad_page(void);
-extern pte_t * __bad_pagetable(void);
-
-#define BAD_PAGETABLE __bad_pagetable()
-#define BAD_PAGE __bad_page()
-#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
-
-/* number of bits that fit into a memory pointer */
-#define BITS_PER_PTR (8*sizeof(unsigned long))
-
-/* to align the pointer to a pointer address */
-#define PTR_MASK (~(sizeof(void*)-1))
-
-/* sizeof(void*)==1<<SIZEOF_PTR_LOG2 */
-/* 64-bit machines, beware! SRB. */
-#define SIZEOF_PTR_LOG2 2
-
-/* to find an entry in a page-table */
-#define PAGE_PTR(address) \
-((unsigned long)(address)>>(PAGE_SHIFT-SIZEOF_PTR_LOG2)&PTR_MASK&~PAGE_MASK)
-
-#define pte_none(x) !(pte_val(x) & ~_PAGE_NEWPAGE)
-#define pte_present(x) (pte_val(x) & (_PAGE_PRESENT | _PAGE_PROTNONE))
-
-#define pte_clear(xp) do { pte_val(*(xp)) = _PAGE_NEWPAGE; } while (0)
-
-#define phys_region_index(x) (((x) & REGION_MASK) >> REGION_SHIFT)
-#define pte_region_index(x) phys_region_index(pte_val(x))
-
-#define pmd_none(x) (!(pmd_val(x) & ~_PAGE_NEWPAGE))
-#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
-#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
-#define pmd_clear(xp) do { pmd_val(*(xp)) = _PAGE_NEWPAGE; } while (0)
-
-#define pmd_newpage(x) (pmd_val(x) & _PAGE_NEWPAGE)
-#define pmd_mkuptodate(x) (pmd_val(x) &= ~_PAGE_NEWPAGE)
-
-/*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
- * setup: the pgd is never bad, and a pmd always exists (as it's folded
- * into the pgd entry)
- */
-static inline int pgd_none(pgd_t pgd) { return 0; }
-static inline int pgd_bad(pgd_t pgd) { return 0; }
-static inline int pgd_present(pgd_t pgd) { return 1; }
-static inline void pgd_clear(pgd_t * pgdp) { }
-
-
-#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
-
-extern struct page *pte_mem_map(pte_t pte);
-extern struct page *phys_mem_map(unsigned long phys);
-extern unsigned long phys_to_pfn(unsigned long p);
-extern unsigned long pfn_to_phys(unsigned long pfn);
-
-#define pte_page(x) pfn_to_page(pte_pfn(x))
-#define pte_address(x) (__va(pte_val(x) & PAGE_MASK))
-#define mk_phys(a, r) ((a) + (r << REGION_SHIFT))
-#define phys_addr(p) ((p) & ~REGION_MASK)
-#define phys_page(p) (phys_mem_map(p) + ((phys_addr(p)) >> PAGE_SHIFT))
-#define pte_pfn(x) phys_to_pfn(pte_val(x))
-#define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot))
-#define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot))
-
-static inline pte_t pte_mknewprot(pte_t pte)
-{
- pte_val(pte) |= _PAGE_NEWPROT;
- return(pte);
-}
-
-static inline pte_t pte_mknewpage(pte_t pte)
-{
- pte_val(pte) |= _PAGE_NEWPAGE;
- return(pte);
-}
-
-static inline void set_pte(pte_t *pteptr, pte_t pteval)
-{
- /* If it's a swap entry, it needs to be marked _PAGE_NEWPAGE so
- * fix_range knows to unmap it. _PAGE_NEWPROT is specific to
- * mapped pages.
- */
- *pteptr = pte_mknewpage(pteval);
- if(pte_present(*pteptr)) *pteptr = pte_mknewprot(*pteptr);
-}
-
-/*
- * (pmds are folded into pgds so this doesn't get actually called,
- * but the define is needed for a generic inline function.)
- */
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
-#define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval)
-
-/*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
-static inline int pte_read(pte_t pte)
-{
- return((pte_val(pte) & _PAGE_USER) &&
- !(pte_val(pte) & _PAGE_PROTNONE));
-}
-
-static inline int pte_exec(pte_t pte){
- return((pte_val(pte) & _PAGE_USER) &&
- !(pte_val(pte) & _PAGE_PROTNONE));
-}
-
-static inline int pte_write(pte_t pte)
-{
- return((pte_val(pte) & _PAGE_RW) &&
- !(pte_val(pte) & _PAGE_PROTNONE));
-}
-
-static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
-static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
-static inline int pte_newpage(pte_t pte) { return pte_val(pte) & _PAGE_NEWPAGE; }
-static inline int pte_newprot(pte_t pte)
-{
- return(pte_present(pte) && (pte_val(pte) & _PAGE_NEWPROT));
-}
-
-static inline pte_t pte_rdprotect(pte_t pte)
-{
- pte_val(pte) &= ~_PAGE_USER;
- return(pte_mknewprot(pte));
-}
-
-static inline pte_t pte_exprotect(pte_t pte)
-{
- pte_val(pte) &= ~_PAGE_USER;
- return(pte_mknewprot(pte));
-}
-
-static inline pte_t pte_mkclean(pte_t pte)
-{
- pte_val(pte) &= ~_PAGE_DIRTY;
- return(pte);
-}
-
-static inline pte_t pte_mkold(pte_t pte)
-{
- pte_val(pte) &= ~_PAGE_ACCESSED;
- return(pte);
-}
-
-static inline pte_t pte_wrprotect(pte_t pte)
-{
- pte_val(pte) &= ~_PAGE_RW;
- return(pte_mknewprot(pte));
-}
-
-static inline pte_t pte_mkread(pte_t pte)
-{
- pte_val(pte) |= _PAGE_USER;
- return(pte_mknewprot(pte));
-}
-
-static inline pte_t pte_mkexec(pte_t pte)
-{
- pte_val(pte) |= _PAGE_USER;
- return(pte_mknewprot(pte));
-}
-
-static inline pte_t pte_mkdirty(pte_t pte)
-{
- pte_val(pte) |= _PAGE_DIRTY;
- return(pte);
-}
-
-static inline pte_t pte_mkyoung(pte_t pte)
-{
- pte_val(pte) |= _PAGE_ACCESSED;
- return(pte);
-}
-
-static inline pte_t pte_mkwrite(pte_t pte)
-{
- pte_val(pte) |= _PAGE_RW;
- return(pte_mknewprot(pte));
-}
-
-static inline pte_t pte_mkuptodate(pte_t pte)
-{
- pte_val(pte) &= ~_PAGE_NEWPAGE;
- if(pte_present(pte)) pte_val(pte) &= ~_PAGE_NEWPROT;
- return(pte);
-}
-
-extern unsigned long page_to_phys(struct page *page);
-
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- */
-
-#define mk_pte(page, pgprot) \
-({ \
- pte_t __pte; \
- \
- pte_val(__pte) = page_to_phys(page) + pgprot_val(pgprot);\
- if(pte_present(__pte)) pte_mknewprot(pte_mknewpage(__pte)); \
- __pte; \
-})
-
-static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{
- pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot);
- if(pte_present(pte)) pte = pte_mknewpage(pte_mknewprot(pte));
- return pte;
-}
-
-#define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
-#define pmd_page(pmd) (phys_mem_map(pmd_val(pmd) & PAGE_MASK) + \
- ((phys_addr(pmd_val(pmd)) >> PAGE_SHIFT)))
-
-/* to find an entry in a page-table-directory. */
-#define pgd_index(address) ((address >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
-
-/* to find an entry in a page-table-directory */
-#define pgd_offset(mm, address) \
-((mm)->pgd + ((address) >> PGDIR_SHIFT))
-
-/* to find an entry in a kernel page-table-directory */
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-
-#define pmd_index(address) \
- (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
-
-/* Find an entry in the second-level page table.. */
-static inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address)
-{
- return (pmd_t *) dir;
-}
-
-/* Find an entry in the third-level page table.. */
-#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-#define pte_offset_kernel(dir, address) \
- ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address))
-#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address))
-#define pte_unmap(pte) kunmap_atomic((pte), KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
-
-#define update_mmu_cache(vma,address,pte) do ; while (0)
-
-/* Encode and de-code a swap entry */
-#define __swp_type(x) (((x).val >> 3) & 0x7f)
-#define __swp_offset(x) ((x).val >> 10)
-
-#define __swp_entry(type, offset) \
- ((swp_entry_t) { ((type) << 3) | ((offset) << 10) })
-#define __pte_to_swp_entry(pte) \
- ((swp_entry_t) { pte_val(pte_mkuptodate(pte)) })
-#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-
-#define kern_addr_valid(addr) (1)
-
-#include <asm-generic/pgtable.h>
-
-#endif
-
-#endif
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-#ifndef __UM_RMAP_H
-#define __UM_RMAP_H
-
-#include "asm/arch/rmap.h"
-
-#endif
+++ /dev/null
-#ifndef SETUP_H_INCLUDED
-#define SETUP_H_INCLUDED
-
-#define COMMAND_LINE_SIZE 512
-
-#endif /* SETUP_H_INCLUDED */
+++ /dev/null
-/*
- * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef _UM_UNISTD_H_
-#define _UM_UNISTD_H_
-
-#include <linux/syscalls.h>
-#include "linux/resource.h"
-#include "asm/uaccess.h"
-
-extern int um_execve(const char *file, char *const argv[], char *const env[]);
-
-#ifdef __KERNEL__
-#define __ARCH_WANT_IPC_PARSE_VERSION
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_RT_SIGACTION
-#endif
-
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-
-#define KERNEL_CALL(ret_t, sys, args...) \
- mm_segment_t fs = get_fs(); \
- ret_t ret; \
- set_fs(KERNEL_DS); \
- ret = sys(args); \
- set_fs(fs); \
- return ret;
-
-static inline long open(const char *pathname, int flags, int mode)
-{
- KERNEL_CALL(int, sys_open, pathname, flags, mode)
-}
-
-static inline long dup(unsigned int fd)
-{
- KERNEL_CALL(int, sys_dup, fd);
-}
-
-static inline long close(unsigned int fd)
-{
- KERNEL_CALL(int, sys_close, fd);
-}
-
-static inline int execve(const char *filename, char *const argv[],
- char *const envp[])
-{
- KERNEL_CALL(int, um_execve, filename, argv, envp);
-}
-
-static inline long waitpid(pid_t pid, unsigned int *status, int options)
-{
- KERNEL_CALL(pid_t, sys_wait4, pid, status, options, NULL)
-}
-
-static inline pid_t setsid(void)
-{
- KERNEL_CALL(pid_t, sys_setsid)
-}
-
-static inline long lseek(unsigned int fd, off_t offset, unsigned int whence)
-{
- KERNEL_CALL(long, sys_lseek, fd, offset, whence)
-}
-
-static inline int read(unsigned int fd, char * buf, int len)
-{
- KERNEL_CALL(int, sys_read, fd, buf, len)
-}
-
-static inline int write(unsigned int fd, char * buf, int len)
-{
- KERNEL_CALL(int, sys_write, fd, buf, len)
-}
-
-long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-int sys_execve(char *file, char **argv, char **env);
-long sys_clone(unsigned long clone_flags, unsigned long newsp,
- int *parent_tid, int *child_tid);
-long sys_fork(void);
-long sys_vfork(void);
-int sys_pipe(unsigned long *fildes);
-int sys_ptrace(long request, long pid, long addr, long data);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif
-
-/* Save the value of __KERNEL_SYSCALLS__, undefine it, include the underlying
- * arch's unistd.h for the system call numbers, and restore the old
- * __KERNEL_SYSCALLS__.
- */
-
-#ifdef __KERNEL_SYSCALLS__
-#define __SAVE_KERNEL_SYSCALLS__ __KERNEL_SYSCALLS__
-#endif
-
-#undef __KERNEL_SYSCALLS__
-#include "asm/arch/unistd.h"
-
-#ifdef __KERNEL_SYSCALLS__
-#define __KERNEL_SYSCALLS__ __SAVE_KERNEL_SYSCALLS__
-#endif
-
-#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+++ /dev/null
-/* Do not need anything here */
+++ /dev/null
-#ifndef _V850_SETUP_H
-#define _V850_SETUP_H
-
-#define COMMAND_LINE_SIZE 512
-
-#endif /* __SETUP_H */
+++ /dev/null
-#ifndef _X8664_RMAP_H
-#define _X8664_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
+++ /dev/null
-#ifndef _LINUX_CRC_CCITT_H
-#define _LINUX_CRC_CCITT_H
-
-#include <linux/types.h>
-
-extern u16 const crc_ccitt_table[256];
-
-extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len);
-
-static inline u16 crc_ccitt_byte(u16 crc, const u8 c)
-{
- return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff];
-}
-
-#endif /* _LINUX_CRC_CCITT_H */
+++ /dev/null
-#ifndef __DMI_H__
-#define __DMI_H__
-
-enum dmi_field {
- DMI_NONE,
- DMI_BIOS_VENDOR,
- DMI_BIOS_VERSION,
- DMI_BIOS_DATE,
- DMI_SYS_VENDOR,
- DMI_PRODUCT_NAME,
- DMI_PRODUCT_VERSION,
- DMI_BOARD_VENDOR,
- DMI_BOARD_NAME,
- DMI_BOARD_VERSION,
- DMI_STRING_MAX,
-};
-
-/*
- * DMI callbacks for problem boards
- */
-struct dmi_strmatch {
- u8 slot;
- char *substr;
-};
-
-struct dmi_system_id {
- int (*callback)(struct dmi_system_id *);
- char *ident;
- struct dmi_strmatch matches[4];
- void *driver_data;
-};
-
-#define DMI_MATCH(a,b) { a, b }
-
-#if defined(CONFIG_X86) && !defined(CONFIG_X86_64)
-
-extern int dmi_check_system(struct dmi_system_id *list);
-extern char * dmi_get_system_info(int field);
-
-#else
-
-static inline int dmi_check_system(struct dmi_system_id *list) { return 0; }
-static inline char * dmi_get_system_info(int field) { return NULL; }
-
-#endif
-
-#endif /* __DMI_H__ */
+++ /dev/null
-/*
- * Copyright (C) 1998, 1999, 2003 Ralf Baechle
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#ifndef __LINUX_DS1286_H
-#define __LINUX_DS1286_H
-
-#include <asm/ds1286.h>
-
-/**********************************************************************
- * register summary
- **********************************************************************/
-#define RTC_HUNDREDTH_SECOND 0
-#define RTC_SECONDS 1
-#define RTC_MINUTES 2
-#define RTC_MINUTES_ALARM 3
-#define RTC_HOURS 4
-#define RTC_HOURS_ALARM 5
-#define RTC_DAY 6
-#define RTC_DAY_ALARM 7
-#define RTC_DATE 8
-#define RTC_MONTH 9
-#define RTC_YEAR 10
-#define RTC_CMD 11
-#define RTC_WHSEC 12
-#define RTC_WSEC 13
-#define RTC_UNUSED 14
-
-/* RTC_*_alarm is always true if 2 MSBs are set */
-# define RTC_ALARM_DONT_CARE 0xC0
-
-
-/*
- * Bits in the month register
- */
-#define RTC_EOSC 0x80
-#define RTC_ESQW 0x40
-
-/*
- * Bits in the Command register
- */
-#define RTC_TDF 0x01
-#define RTC_WAF 0x02
-#define RTC_TDM 0x04
-#define RTC_WAM 0x08
-#define RTC_PU_LVL 0x10
-#define RTC_IBH_LO 0x20
-#define RTC_IPSW 0x40
-#define RTC_TE 0x80
-
-#endif /* __LINUX_DS1286_H */
+++ /dev/null
-#ifndef __LINUX_GFP_H
-#define __LINUX_GFP_H
-
-#include <linux/mmzone.h>
-#include <linux/stddef.h>
-#include <linux/linkage.h>
-#include <linux/config.h>
-
-struct vm_area_struct;
-
-/*
- * GFP bitmasks..
- */
-/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low two bits) */
-#define __GFP_DMA 0x01
-#define __GFP_HIGHMEM 0x02
-
-/*
- * Action modifiers - doesn't change the zoning
- *
- * __GFP_REPEAT: Try hard to allocate the memory, but the allocation attempt
- * _might_ fail. This depends upon the particular VM implementation.
- *
- * __GFP_NOFAIL: The VM implementation _must_ retry infinitely: the caller
- * cannot handle allocation failures.
- *
- * __GFP_NORETRY: The VM implementation must not retry indefinitely.
- */
-#define __GFP_WAIT 0x10 /* Can wait and reschedule? */
-#define __GFP_HIGH 0x20 /* Should access emergency pools? */
-#define __GFP_IO 0x40 /* Can start physical IO? */
-#define __GFP_FS 0x80 /* Can call down to low-level FS? */
-#define __GFP_COLD 0x100 /* Cache-cold page required */
-#define __GFP_NOWARN 0x200 /* Suppress page allocation failure warning */
-#define __GFP_REPEAT 0x400 /* Retry the allocation. Might fail */
-#define __GFP_NOFAIL 0x800 /* Retry for ever. Cannot fail */
-#define __GFP_NORETRY 0x1000 /* Do not retry. Might fail */
-#define __GFP_NO_GROW 0x2000 /* Slab internal usage */
-#define __GFP_COMP 0x4000 /* Add compound page metadata */
-
-#define __GFP_BITS_SHIFT 16 /* Room for 16 __GFP_FOO bits */
-#define __GFP_BITS_MASK ((1 << __GFP_BITS_SHIFT) - 1)
-
-/* if you forget to add the bitmask here kernel will crash, period */
-#define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \
- __GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \
- __GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP)
-
-#define GFP_ATOMIC (__GFP_HIGH)
-#define GFP_NOIO (__GFP_WAIT)
-#define GFP_NOFS (__GFP_WAIT | __GFP_IO)
-#define GFP_KERNEL (__GFP_WAIT | __GFP_IO | __GFP_FS)
-#define GFP_USER (__GFP_WAIT | __GFP_IO | __GFP_FS)
-#define GFP_HIGHUSER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HIGHMEM)
-
-/* Flag - indicates that the buffer will be suitable for DMA. Ignored on some
- platforms, used as appropriate on others */
-
-#define GFP_DMA __GFP_DMA
-
-
-/*
- * There is only one page-allocator function, and two main namespaces to
- * it. The alloc_page*() variants return 'struct page *' and as such
- * can allocate highmem pages, the *get*page*() variants return
- * virtual kernel addresses to the allocated page(s).
- */
-
-/*
- * We get the zone list from the current node and the gfp_mask.
- * This zone list contains a maximum of MAXNODES*MAX_NR_ZONES zones.
- *
- * For the normal case of non-DISCONTIGMEM systems the NODE_DATA() gets
- * optimized to &contig_page_data at compile-time.
- */
-extern struct page *
-FASTCALL(__alloc_pages(unsigned int, unsigned int, struct zonelist *));
-
-static inline struct page *alloc_pages_node(int nid, unsigned int gfp_mask,
- unsigned int order)
-{
- if (unlikely(order >= MAX_ORDER))
- return NULL;
-
- return __alloc_pages(gfp_mask, order,
- NODE_DATA(nid)->node_zonelists + (gfp_mask & GFP_ZONEMASK));
-}
-
-#ifdef CONFIG_NUMA
-extern struct page *alloc_pages_current(unsigned gfp_mask, unsigned order);
-
-static inline struct page *
-alloc_pages(unsigned int gfp_mask, unsigned int order)
-{
- if (unlikely(order >= MAX_ORDER))
- return NULL;
-
- return alloc_pages_current(gfp_mask, order);
-}
-extern struct page *alloc_page_vma(unsigned gfp_mask,
- struct vm_area_struct *vma, unsigned long addr);
-#else
-#define alloc_pages(gfp_mask, order) \
- alloc_pages_node(numa_node_id(), gfp_mask, order)
-#define alloc_page_vma(gfp_mask, vma, addr) alloc_pages(gfp_mask, 0)
-#endif
-#define alloc_page(gfp_mask) alloc_pages(gfp_mask, 0)
-
-extern unsigned long FASTCALL(__get_free_pages(unsigned int gfp_mask, unsigned int order));
-extern unsigned long FASTCALL(get_zeroed_page(unsigned int gfp_mask));
-
-#define __get_free_page(gfp_mask) \
- __get_free_pages((gfp_mask),0)
-
-#define __get_dma_pages(gfp_mask, order) \
- __get_free_pages((gfp_mask) | GFP_DMA,(order))
-
-extern void FASTCALL(__free_pages(struct page *page, unsigned int order));
-extern void FASTCALL(free_pages(unsigned long addr, unsigned int order));
-extern void FASTCALL(free_hot_page(struct page *page));
-extern void FASTCALL(free_cold_page(struct page *page));
-
-#define __free_page(page) __free_pages((page), 0)
-#define free_page(addr) free_pages((addr),0)
-
-void page_alloc_init(void);
-
-#endif /* __LINUX_GFP_H */
+++ /dev/null
-#ifndef __HPET__
-#define __HPET__ 1
-
-/*
- * Offsets into HPET Registers
- */
-
-struct hpet {
- u64 hpet_cap; /* capabilities */
- u64 res0; /* reserved */
- u64 hpet_config; /* configuration */
- u64 res1; /* reserved */
- u64 hpet_isr; /* interrupt status reg */
- u64 res2[25]; /* reserved */
- union { /* main counter */
- u64 _hpet_mc64;
- u32 _hpet_mc32;
- unsigned long _hpet_mc;
- } _u0;
- u64 res3; /* reserved */
- struct hpet_timer {
- u64 hpet_config; /* configuration/cap */
- union { /* timer compare register */
- u64 _hpet_hc64;
- u32 _hpet_hc32;
- unsigned long _hpet_compare;
- } _u1;
- u64 hpet_fsb[2]; /* FSB route */
- } hpet_timers[1];
-};
-
-#define hpet_mc _u0._hpet_mc
-#define hpet_compare _u1._hpet_compare
-
-#define HPET_MAX_TIMERS (32)
-
-/*
- * HPET general capabilities register
- */
-
-#define HPET_COUNTER_CLK_PERIOD_MASK (0xffffffff00000000ULL)
-#define HPET_COUNTER_CLK_PERIOD_SHIFT (32UL)
-#define HPET_VENDOR_ID_MASK (0x00000000ffff0000ULL)
-#define HPET_VENDOR_ID_SHIFT (16ULL)
-#define HPET_LEG_RT_CAP_MASK (0x8000)
-#define HPET_COUNTER_SIZE_MASK (0x2000)
-#define HPET_NUM_TIM_CAP_MASK (0x1f00)
-#define HPET_NUM_TIM_CAP_SHIFT (8ULL)
-
-/*
- * HPET general configuration register
- */
-
-#define HPET_LEG_RT_CNF_MASK (2UL)
-#define HPET_ENABLE_CNF_MASK (1UL)
-
-/*
- * HPET interrupt status register
- */
-
-#define HPET_ISR_CLEAR(HPET, TIMER) \
- (HPET)->hpet_isr |= (1UL << TIMER)
-
-/*
- * Timer configuration register
- */
-
-#define Tn_INT_ROUTE_CAP_MASK (0xffffffff00000000ULL)
-#define Tn_INI_ROUTE_CAP_SHIFT (32UL)
-#define Tn_FSB_INT_DELCAP_MASK (0x8000UL)
-#define Tn_FSB_INT_DELCAP_SHIFT (15)
-#define Tn_FSB_EN_CNF_MASK (0x4000UL)
-#define Tn_FSB_EN_CNF_SHIFT (14)
-#define Tn_INT_ROUTE_CNF_MASK (0x3e00UL)
-#define Tn_INT_ROUTE_CNF_SHIFT (9)
-#define Tn_32MODE_CNF_MASK (0x0100UL)
-#define Tn_VAL_SET_CNF_MASK (0x0040UL)
-#define Tn_SIZE_CAP_MASK (0x0020UL)
-#define Tn_PER_INT_CAP_MASK (0x0010UL)
-#define Tn_TYPE_CNF_MASK (0x0008UL)
-#define Tn_INT_ENB_CNF_MASK (0x0004UL)
-#define Tn_INT_TYPE_CNF_MASK (0x0002UL)
-
-/*
- * Timer FSB Interrupt Route Register
- */
-
-#define Tn_FSB_INT_ADDR_MASK (0xffffffff00000000ULL)
-#define Tn_FSB_INT_ADDR_SHIFT (32UL)
-#define Tn_FSB_INT_VAL_MASK (0x00000000ffffffffULL)
-
-struct hpet_info {
- unsigned long hi_ireqfreq; /* Hz */
- unsigned long hi_flags; /* information */
- unsigned short hi_hpet;
- unsigned short hi_timer;
-};
-
-#define HPET_INFO_PERIODIC 0x0001 /* timer is periodic */
-
-#define HPET_IE_ON _IO('h', 0x01) /* interrupt on */
-#define HPET_IE_OFF _IO('h', 0x02) /* interrupt off */
-#define HPET_INFO _IOR('h', 0x03, struct hpet_info)
-#define HPET_EPI _IO('h', 0x04) /* enable periodic */
-#define HPET_DPI _IO('h', 0x05) /* disable periodic */
-#define HPET_IRQFREQ _IOW('h', 0x6, unsigned long) /* IRQFREQ usec */
-
-/*
- * exported interfaces
- */
-
-struct hpet_task {
- void (*ht_func) (void *);
- void *ht_data;
- void *ht_opaque;
-};
-
-struct hpet_data {
- unsigned long hd_address;
- unsigned short hd_nirqs;
- unsigned short hd_flags;
- unsigned int hd_state; /* timer allocated */
- unsigned int hd_irq[HPET_MAX_TIMERS];
-};
-
-#define HPET_DATA_PLATFORM 0x0001 /* platform call to hpet_alloc */
-
-int hpet_alloc(struct hpet_data *);
-int hpet_register(struct hpet_task *, int);
-int hpet_unregister(struct hpet_task *);
-int hpet_control(struct hpet_task *, unsigned int, unsigned long);
-
-#endif /* !__HPET__ */
+++ /dev/null
-#ifndef _LINUX_MM_H
-#define _LINUX_MM_H
-
-#include <linux/sched.h>
-#include <linux/errno.h>
-
-#ifdef __KERNEL__
-
-#include <linux/config.h>
-#include <linux/gfp.h>
-#include <linux/list.h>
-#include <linux/mmzone.h>
-#include <linux/rbtree.h>
-#include <linux/prio_tree.h>
-#include <linux/fs.h>
-
-struct mempolicy;
-struct anon_vma;
-
-#ifndef CONFIG_DISCONTIGMEM /* Don't use mapnrs, do it properly */
-extern unsigned long max_mapnr;
-#endif
-
-extern unsigned long num_physpages;
-extern void * high_memory;
-extern int page_cluster;
-
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/atomic.h>
-
-#ifndef MM_VM_SIZE
-#define MM_VM_SIZE(mm) TASK_SIZE
-#endif
-
-/*
- * Linux kernel virtual memory manager primitives.
- * The idea being to have a "virtual" mm in the same way
- * we have a virtual fs - giving a cleaner interface to the
- * mm details, and allowing different kinds of memory mappings
- * (from shared memory to executable loading to arbitrary
- * mmap() functions).
- */
-
-/*
- * This struct defines a memory VMM memory area. There is one of these
- * per VM-area/task. A VM area is any part of the process virtual memory
- * space that has a special rule for the page-fault handlers (ie a shared
- * library, the executable area etc).
- */
-struct vm_area_struct {
- struct mm_struct * vm_mm; /* The address space we belong to. */
- unsigned long vm_start; /* Our start address within vm_mm. */
- unsigned long vm_end; /* The first byte after our end address
- within vm_mm. */
-
- /* linked list of VM areas per task, sorted by address */
- struct vm_area_struct *vm_next;
-
- pgprot_t vm_page_prot; /* Access permissions of this VMA. */
- unsigned long vm_flags; /* Flags, listed below. */
-
- struct rb_node vm_rb;
-
- /*
- * For areas with an address space and backing store,
- * linkage into the address_space->i_mmap prio tree, or
- * linkage to the list of like vmas hanging off its node, or
- * linkage of vma in the address_space->i_mmap_nonlinear list.
- */
- union {
- struct {
- struct list_head list;
- void *parent; /* aligns with prio_tree_node parent */
- struct vm_area_struct *head;
- } vm_set;
-
- struct prio_tree_node prio_tree_node;
- } shared;
-
- /*
- * A file's MAP_PRIVATE vma can be in both i_mmap tree and anon_vma
- * list, after a COW of one of the file pages. A MAP_SHARED vma
- * can only be in the i_mmap tree. An anonymous MAP_PRIVATE, stack
- * or brk vma (with NULL file) can only be in an anon_vma list.
- */
- struct list_head anon_vma_node; /* Serialized by anon_vma->lock */
- struct anon_vma *anon_vma; /* Serialized by page_table_lock */
-
- /* Function pointers to deal with this struct. */
- struct vm_operations_struct * vm_ops;
-
- /* Information about our backing store: */
- unsigned long vm_pgoff; /* Offset (within vm_file) in PAGE_SIZE
- units, *not* PAGE_CACHE_SIZE */
- struct file * vm_file; /* File we map to (can be NULL). */
- void * vm_private_data; /* was vm_pte (shared mem) */
-
-#ifdef CONFIG_NUMA
- struct mempolicy *vm_policy; /* NUMA policy for the VMA */
-#endif
-};
-
-/*
- * vm_flags..
- */
-#define VM_READ 0x00000001 /* currently active flags */
-#define VM_WRITE 0x00000002
-#define VM_EXEC 0x00000004
-#define VM_SHARED 0x00000008
-
-#define VM_MAYREAD 0x00000010 /* limits for mprotect() etc */
-#define VM_MAYWRITE 0x00000020
-#define VM_MAYEXEC 0x00000040
-#define VM_MAYSHARE 0x00000080
-
-#define VM_GROWSDOWN 0x00000100 /* general info on the segment */
-#define VM_GROWSUP 0x00000200
-#define VM_SHM 0x00000400 /* shared memory area, don't swap out */
-#define VM_DENYWRITE 0x00000800 /* ETXTBSY on write attempts.. */
-
-#define VM_EXECUTABLE 0x00001000
-#define VM_LOCKED 0x00002000
-#define VM_IO 0x00004000 /* Memory mapped I/O or similar */
-
- /* Used by sys_madvise() */
-#define VM_SEQ_READ 0x00008000 /* App will access data sequentially */
-#define VM_RAND_READ 0x00010000 /* App will not benefit from clustered reads */
-
-#define VM_DONTCOPY 0x00020000 /* Do not copy this vma on fork */
-#define VM_DONTEXPAND 0x00040000 /* Cannot expand with mremap() */
-#define VM_RESERVED 0x00080000 /* Don't unmap it from swap_out */
-#define VM_ACCOUNT 0x00100000 /* Is a VM accounted object */
-#define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */
-#define VM_NONLINEAR 0x00800000 /* Is non-linear (remap_file_pages) */
-
-#ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */
-#define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
-#endif
-
-#ifdef CONFIG_STACK_GROWSUP
-#define VM_STACK_FLAGS (VM_GROWSUP | VM_STACK_DEFAULT_FLAGS | VM_ACCOUNT)
-#else
-#define VM_STACK_FLAGS (VM_GROWSDOWN | VM_STACK_DEFAULT_FLAGS | VM_ACCOUNT)
-#endif
-
-#define VM_READHINTMASK (VM_SEQ_READ | VM_RAND_READ)
-#define VM_ClearReadHint(v) (v)->vm_flags &= ~VM_READHINTMASK
-#define VM_NormalReadHint(v) (!((v)->vm_flags & VM_READHINTMASK))
-#define VM_SequentialReadHint(v) ((v)->vm_flags & VM_SEQ_READ)
-#define VM_RandomReadHint(v) ((v)->vm_flags & VM_RAND_READ)
-
-/*
- * mapping from the currently active vm_flags protection bits (the
- * low four bits) to a page protection mask..
- */
-extern pgprot_t protection_map[16];
-
-
-/*
- * These are the virtual MM functions - opening of an area, closing and
- * unmapping it (needed to keep files on disk up-to-date etc), pointer
- * to the functions called when a no-page or a wp-page exception occurs.
- */
-struct vm_operations_struct {
- void (*open)(struct vm_area_struct * area);
- void (*close)(struct vm_area_struct * area);
- struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int *type);
- int (*populate)(struct vm_area_struct * area, unsigned long address, unsigned long len, pgprot_t prot, unsigned long pgoff, int nonblock);
-#ifdef CONFIG_NUMA
- int (*set_policy)(struct vm_area_struct *vma, struct mempolicy *new);
- struct mempolicy *(*get_policy)(struct vm_area_struct *vma,
- unsigned long addr);
-#endif
-};
-
-struct mmu_gather;
-struct inode;
-
-#ifdef ARCH_HAS_ATOMIC_UNSIGNED
-typedef unsigned page_flags_t;
-#else
-typedef unsigned long page_flags_t;
-#endif
-
-/*
- * Each physical page in the system has a struct page associated with
- * it to keep track of whatever it is we are using the page for at the
- * moment. Note that we have no way to track which tasks are using
- * a page.
- */
-struct page {
- page_flags_t flags; /* Atomic flags, some possibly
- * updated asynchronously */
- atomic_t _count; /* Usage count, see below. */
- unsigned int mapcount; /* Count of ptes mapped in mms,
- * to show when page is mapped
- * & limit reverse map searches,
- * protected by PG_maplock.
- */
- unsigned long private; /* Mapping-private opaque data:
- * usually used for buffer_heads
- * if PagePrivate set; used for
- * swp_entry_t if PageSwapCache
- */
- struct address_space *mapping; /* If PG_anon clear, points to
- * inode address_space, or NULL.
- * If page mapped as anonymous
- * memory, PG_anon is set, and
- * it points to anon_vma object.
- */
- pgoff_t index; /* Our offset within mapping. */
- struct list_head lru; /* Pageout list, eg. active_list
- * protected by zone->lru_lock !
- */
- /*
- * On machines where all RAM is mapped into kernel address space,
- * we can simply calculate the virtual address. On machines with
- * highmem some memory is mapped into kernel virtual memory
- * dynamically, so we need a place to store that address.
- * Note that this field could be 16 bits on x86 ... ;)
- *
- * Architectures with slow multiplication can define
- * WANT_PAGE_VIRTUAL in asm/page.h
- */
-#if defined(WANT_PAGE_VIRTUAL)
- void *virtual; /* Kernel virtual address (NULL if
- not kmapped, ie. highmem) */
-#endif /* WANT_PAGE_VIRTUAL */
-};
-
-/*
- * FIXME: take this include out, include page-flags.h in
- * files which need it (119 of them)
- */
-#include <linux/page-flags.h>
-
-/*
- * Methods to modify the page usage count.
- *
- * What counts for a page usage:
- * - cache mapping (page->mapping)
- * - private data (page->private)
- * - page mapped in a task's page tables, each mapping
- * is counted separately
- *
- * Also, many kernel routines increase the page count before a critical
- * routine so they can be sure the page doesn't go away from under them.
- *
- * Since 2.6.6 (approx), a free page has ->_count = -1. This is so that we
- * can use atomic_add_negative(-1, page->_count) to detect when the page
- * becomes free and so that we can also use atomic_inc_and_test to atomically
- * detect when we just tried to grab a ref on a page which some other CPU has
- * already deemed to be freeable.
- *
- * NO code should make assumptions about this internal detail! Use the provided
- * macros which retain the old rules: page_count(page) == 0 is a free page.
- */
-
-/*
- * Drop a ref, return true if the logical refcount fell to zero (the page has
- * no users)
- */
-#define put_page_testzero(p) \
- ({ \
- BUG_ON(page_count(p) == 0); \
- atomic_add_negative(-1, &(p)->_count); \
- })
-
-/*
- * Grab a ref, return true if the page previously had a logical refcount of
- * zero. ie: returns true if we just grabbed an already-deemed-to-be-free page
- */
-#define get_page_testone(p) atomic_inc_and_test(&(p)->_count)
-
-#define set_page_count(p,v) atomic_set(&(p)->_count, v - 1)
-#define __put_page(p) atomic_dec(&(p)->_count)
-
-extern void FASTCALL(__page_cache_release(struct page *));
-
-#ifdef CONFIG_HUGETLB_PAGE
-
-static inline int page_count(struct page *p)
-{
- if (PageCompound(p))
- p = (struct page *)p->private;
- return atomic_read(&(p)->_count) + 1;
-}
-
-static inline void get_page(struct page *page)
-{
- if (unlikely(PageCompound(page)))
- page = (struct page *)page->private;
- atomic_inc(&page->_count);
-}
-
-void put_page(struct page *page);
-
-#else /* CONFIG_HUGETLB_PAGE */
-
-#define page_count(p) (atomic_read(&(p)->_count) + 1)
-
-static inline void get_page(struct page *page)
-{
- atomic_inc(&page->_count);
-}
-
-static inline void put_page(struct page *page)
-{
- if (!PageReserved(page) && put_page_testzero(page))
- __page_cache_release(page);
-}
-
-#endif /* CONFIG_HUGETLB_PAGE */
-
-/*
- * Multiple processes may "see" the same page. E.g. for untouched
- * mappings of /dev/null, all processes see the same page full of
- * zeroes, and text pages of executables and shared libraries have
- * only one copy in memory, at most, normally.
- *
- * For the non-reserved pages, page_count(page) denotes a reference count.
- * page_count() == 0 means the page is free.
- * page_count() == 1 means the page is used for exactly one purpose
- * (e.g. a private data page of one process).
- *
- * A page may be used for kmalloc() or anyone else who does a
- * __get_free_page(). In this case the page_count() is at least 1, and
- * all other fields are unused but should be 0 or NULL. The
- * management of this page is the responsibility of the one who uses
- * it.
- *
- * The other pages (we may call them "process pages") are completely
- * managed by the Linux memory manager: I/O, buffers, swapping etc.
- * The following discussion applies only to them.
- *
- * A page may belong to an inode's memory mapping. In this case,
- * page->mapping is the pointer to the inode, and page->index is the
- * file offset of the page, in units of PAGE_CACHE_SIZE.
- *
- * A page contains an opaque `private' member, which belongs to the
- * page's address_space. Usually, this is the address of a circular
- * list of the page's disk buffers.
- *
- * For pages belonging to inodes, the page_count() is the number of
- * attaches, plus 1 if `private' contains something, plus one for
- * the page cache itself.
- *
- * All pages belonging to an inode are in these doubly linked lists:
- * mapping->clean_pages, mapping->dirty_pages and mapping->locked_pages;
- * using the page->list list_head. These fields are also used for
- * freelist managemet (when page_count()==0).
- *
- * There is also a per-mapping radix tree mapping index to the page
- * in memory if present. The tree is rooted at mapping->root.
- *
- * All process pages can do I/O:
- * - inode pages may need to be read from disk,
- * - inode pages which have been modified and are MAP_SHARED may need
- * to be written to disk,
- * - private pages which have been modified may need to be swapped out
- * to swap space and (later) to be read back into memory.
- */
-
-/*
- * The zone field is never updated after free_area_init_core()
- * sets it, so none of the operations on it need to be atomic.
- * We'll have up to (MAX_NUMNODES * MAX_NR_ZONES) zones total,
- * so we use (MAX_NODES_SHIFT + MAX_ZONES_SHIFT) here to get enough bits.
- */
-#define NODEZONE_SHIFT (sizeof(page_flags_t)*8 - MAX_NODES_SHIFT - MAX_ZONES_SHIFT)
-#define NODEZONE(node, zone) ((node << ZONES_SHIFT) | zone)
-
-static inline unsigned long page_zonenum(struct page *page)
-{
- return (page->flags >> NODEZONE_SHIFT) & (~(~0UL << ZONES_SHIFT));
-}
-static inline unsigned long page_to_nid(struct page *page)
-{
- return (page->flags >> (NODEZONE_SHIFT + ZONES_SHIFT));
-}
-
-struct zone;
-extern struct zone *zone_table[];
-
-static inline struct zone *page_zone(struct page *page)
-{
- return zone_table[page->flags >> NODEZONE_SHIFT];
-}
-
-static inline void set_page_zone(struct page *page, unsigned long nodezone_num)
-{
- page->flags &= ~(~0UL << NODEZONE_SHIFT);
- page->flags |= nodezone_num << NODEZONE_SHIFT;
-}
-
-#ifndef CONFIG_DISCONTIGMEM
-/* The array of struct pages - for discontigmem use pgdat->lmem_map */
-extern struct page *mem_map;
-#endif
-
-static inline void *lowmem_page_address(struct page *page)
-{
- return __va(page_to_pfn(page) << PAGE_SHIFT);
-}
-
-#if defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL)
-#define HASHED_PAGE_VIRTUAL
-#endif
-
-#if defined(WANT_PAGE_VIRTUAL)
-#define page_address(page) ((page)->virtual)
-#define set_page_address(page, address) \
- do { \
- (page)->virtual = (address); \
- } while(0)
-#define page_address_init() do { } while(0)
-#endif
-
-#if defined(HASHED_PAGE_VIRTUAL)
-void *page_address(struct page *page);
-void set_page_address(struct page *page, void *virtual);
-void page_address_init(void);
-#endif
-
-#if !defined(HASHED_PAGE_VIRTUAL) && !defined(WANT_PAGE_VIRTUAL)
-#define page_address(page) lowmem_page_address(page)
-#define set_page_address(page, address) do { } while(0)
-#define page_address_init() do { } while(0)
-#endif
-
-/*
- * On an anonymous page mapped into a user virtual memory area,
- * page->mapping points to its anon_vma, not to a struct address_space.
- *
- * Please note that, confusingly, "page_mapping" refers to the inode
- * address_space which maps the page from disk; whereas "page_mapped"
- * refers to user virtual address space into which the page is mapped.
- */
-extern struct address_space swapper_space;
-static inline struct address_space *page_mapping(struct page *page)
-{
- struct address_space *mapping = NULL;
-
- if (unlikely(PageSwapCache(page)))
- mapping = &swapper_space;
- else if (likely(!PageAnon(page)))
- mapping = page->mapping;
- return mapping;
-}
-
-/*
- * Return the pagecache index of the passed page. Regular pagecache pages
- * use ->index whereas swapcache pages use ->private
- */
-static inline pgoff_t page_index(struct page *page)
-{
- if (unlikely(PageSwapCache(page)))
- return page->private;
- return page->index;
-}
-
-/*
- * Return true if this page is mapped into pagetables.
- */
-static inline int page_mapped(struct page *page)
-{
- return page->mapcount != 0;
-}
-
-/*
- * Error return values for the *_nopage functions
- */
-#define NOPAGE_SIGBUS (NULL)
-#define NOPAGE_OOM ((struct page *) (-1))
-
-/*
- * Different kinds of faults, as returned by handle_mm_fault().
- * Used to decide whether a process gets delivered SIGBUS or
- * just gets major/minor fault counters bumped up.
- */
-#define VM_FAULT_OOM (-1)
-#define VM_FAULT_SIGBUS 0
-#define VM_FAULT_MINOR 1
-#define VM_FAULT_MAJOR 2
-
-#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
-
-extern void show_free_areas(void);
-
-struct page *shmem_nopage(struct vm_area_struct * vma,
- unsigned long address, int *type);
-int shmem_set_policy(struct vm_area_struct *vma, struct mempolicy *new);
-struct mempolicy *shmem_get_policy(struct vm_area_struct *vma,
- unsigned long addr);
-struct file *shmem_file_setup(char * name, loff_t size, unsigned long flags);
-void shmem_lock(struct file * file, int lock);
-int shmem_zero_setup(struct vm_area_struct *);
-
-/*
- * Parameter block passed down to zap_pte_range in exceptional cases.
- */
-struct zap_details {
- struct vm_area_struct *nonlinear_vma; /* Check page->index if set */
- struct address_space *check_mapping; /* Check page->mapping if set */
- pgoff_t first_index; /* Lowest page->index to unmap */
- pgoff_t last_index; /* Highest page->index to unmap */
- int atomic; /* May not schedule() */
-};
-
-void zap_page_range(struct vm_area_struct *vma, unsigned long address,
- unsigned long size, struct zap_details *);
-int unmap_vmas(struct mmu_gather **tlbp, struct mm_struct *mm,
- struct vm_area_struct *start_vma, unsigned long start_addr,
- unsigned long end_addr, unsigned long *nr_accounted,
- struct zap_details *);
-void clear_page_tables(struct mmu_gather *tlb, unsigned long first, int nr);
-int copy_page_range(struct mm_struct *dst, struct mm_struct *src,
- struct vm_area_struct *vma);
-int zeromap_page_range(struct vm_area_struct *vma, unsigned long from,
- unsigned long size, pgprot_t prot);
-void unmap_mapping_range(struct address_space *mapping,
- loff_t const holebegin, loff_t const holelen, int even_cows);
-
-static inline void unmap_shared_mapping_range(struct address_space *mapping,
- loff_t const holebegin, loff_t const holelen)
-{
- unmap_mapping_range(mapping, holebegin, holelen, 0);
-}
-
-extern int vmtruncate(struct inode * inode, loff_t offset);
-extern pmd_t *FASTCALL(__pmd_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address));
-extern pte_t *FASTCALL(pte_alloc_kernel(struct mm_struct *mm, pmd_t *pmd, unsigned long address));
-extern pte_t *FASTCALL(pte_alloc_map(struct mm_struct *mm, pmd_t *pmd, unsigned long address));
-extern int install_page(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, struct page *page, pgprot_t prot);
-extern int install_file_pte(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long pgoff, pgprot_t prot);
-extern int handle_mm_fault(struct mm_struct *mm,struct vm_area_struct *vma, unsigned long address, int write_access);
-extern int make_pages_present(unsigned long addr, unsigned long end);
-extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
-void install_arg_page(struct vm_area_struct *, struct page *, unsigned long);
-
-int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start,
- int len, int write, int force, struct page **pages, struct vm_area_struct **vmas);
-
-int __set_page_dirty_buffers(struct page *page);
-int __set_page_dirty_nobuffers(struct page *page);
-int redirty_page_for_writepage(struct writeback_control *wbc,
- struct page *page);
-int FASTCALL(set_page_dirty(struct page *page));
-int set_page_dirty_lock(struct page *page);
-int clear_page_dirty_for_io(struct page *page);
-
-/*
- * Prototype to add a shrinker callback for ageable caches.
- *
- * These functions are passed a count `nr_to_scan' and a gfpmask. They should
- * scan `nr_to_scan' objects, attempting to free them.
- *
- * The callback must the number of objects which remain in the cache.
- *
- * The callback will be passes nr_to_scan == 0 when the VM is querying the
- * cache size, so a fastpath for that case is appropriate.
- */
-typedef int (*shrinker_t)(int nr_to_scan, unsigned int gfp_mask);
-
-/*
- * Add an aging callback. The int is the number of 'seeks' it takes
- * to recreate one of the objects that these functions age.
- */
-
-#define DEFAULT_SEEKS 2
-struct shrinker;
-extern struct shrinker *set_shrinker(int, shrinker_t);
-extern void remove_shrinker(struct shrinker *shrinker);
-
-/*
- * On a two-level page table, this ends up being trivial. Thus the
- * inlining and the symmetry break with pte_alloc_map() that does all
- * of this out-of-line.
- */
-static inline pmd_t *pmd_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
-{
- if (pgd_none(*pgd))
- return __pmd_alloc(mm, pgd, address);
- return pmd_offset(pgd, address);
-}
-
-extern void free_area_init(unsigned long * zones_size);
-extern void free_area_init_node(int nid, pg_data_t *pgdat, struct page *pmap,
- unsigned long * zones_size, unsigned long zone_start_pfn,
- unsigned long *zholes_size);
-extern void memmap_init_zone(struct page *, unsigned long, int,
- unsigned long, unsigned long);
-extern void mem_init(void);
-extern void show_mem(void);
-extern void si_meminfo(struct sysinfo * val);
-extern void si_meminfo_node(struct sysinfo *val, int nid);
-
-static inline void vma_prio_tree_init(struct vm_area_struct *vma)
-{
- vma->shared.vm_set.list.next = NULL;
- vma->shared.vm_set.list.prev = NULL;
- vma->shared.vm_set.parent = NULL;
- vma->shared.vm_set.head = NULL;
-}
-
-/* prio_tree.c */
-void vma_prio_tree_add(struct vm_area_struct *, struct vm_area_struct *old);
-void vma_prio_tree_insert(struct vm_area_struct *, struct prio_tree_root *);
-void vma_prio_tree_remove(struct vm_area_struct *, struct prio_tree_root *);
-struct vm_area_struct *vma_prio_tree_next(
- struct vm_area_struct *, struct prio_tree_root *,
- struct prio_tree_iter *, pgoff_t begin, pgoff_t end);
-
-/* mmap.c */
-extern void vma_adjust(struct vm_area_struct *vma, unsigned long start,
- unsigned long end, pgoff_t pgoff, struct vm_area_struct *insert);
-extern struct vm_area_struct *vma_merge(struct mm_struct *,
- struct vm_area_struct *prev, unsigned long addr, unsigned long end,
- unsigned long vm_flags, struct anon_vma *, struct file *, pgoff_t,
- struct mempolicy *);
-extern struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *);
-extern int split_vma(struct mm_struct *,
- struct vm_area_struct *, unsigned long addr, int new_below);
-extern void insert_vm_struct(struct mm_struct *, struct vm_area_struct *);
-extern void __vma_link_rb(struct mm_struct *, struct vm_area_struct *,
- struct rb_node **, struct rb_node *);
-extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
- unsigned long addr, unsigned long len, pgoff_t pgoff);
-extern void exit_mmap(struct mm_struct *);
-
-extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
-
-extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
- unsigned long len, unsigned long prot,
- unsigned long flag, unsigned long pgoff);
-
-static inline unsigned long do_mmap(struct file *file, unsigned long addr,
- unsigned long len, unsigned long prot,
- unsigned long flag, unsigned long offset)
-{
- unsigned long ret = -EINVAL;
- if ((offset + PAGE_ALIGN(len)) < offset)
- goto out;
- if (!(offset & ~PAGE_MASK))
- ret = do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT);
-out:
- return ret;
-}
-
-extern int do_munmap(struct mm_struct *, unsigned long, size_t);
-
-extern unsigned long do_brk(unsigned long, unsigned long);
-
-/* filemap.c */
-extern unsigned long page_unuse(struct page *);
-extern void truncate_inode_pages(struct address_space *, loff_t);
-
-/* generic vm_area_ops exported for stackable file systems */
-struct page *filemap_nopage(struct vm_area_struct *, unsigned long, int *);
-
-/* mm/page-writeback.c */
-int write_one_page(struct page *page, int wait);
-
-/* readahead.c */
-#define VM_MAX_READAHEAD 128 /* kbytes */
-#define VM_MIN_READAHEAD 16 /* kbytes (includes current page) */
-
-int do_page_cache_readahead(struct address_space *mapping, struct file *filp,
- unsigned long offset, unsigned long nr_to_read);
-int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
- unsigned long offset, unsigned long nr_to_read);
-void page_cache_readahead(struct address_space *mapping,
- struct file_ra_state *ra,
- struct file *filp,
- unsigned long offset);
-void handle_ra_miss(struct address_space *mapping,
- struct file_ra_state *ra, pgoff_t offset);
-unsigned long max_sane_readahead(unsigned long nr);
-
-/* Do stack extension */
-extern int expand_stack(struct vm_area_struct * vma, unsigned long address);
-
-/* Look up the first VMA which satisfies addr < vm_end, NULL if none. */
-extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr);
-extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
- struct vm_area_struct **pprev);
-
-/* Look up the first VMA which intersects the interval start_addr..end_addr-1,
- NULL if none. Assume start_addr < end_addr. */
-static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
-{
- struct vm_area_struct * vma = find_vma(mm,start_addr);
-
- if (vma && end_addr <= vma->vm_start)
- vma = NULL;
- return vma;
-}
-
-static inline unsigned long vma_pages(struct vm_area_struct *vma)
-{
- return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
-}
-
-extern struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr);
-
-extern unsigned int nr_used_zone_pages(void);
-
-extern struct page * vmalloc_to_page(void *addr);
-extern struct page * follow_page(struct mm_struct *mm, unsigned long address,
- int write);
-extern int remap_page_range(struct vm_area_struct *vma, unsigned long from,
- unsigned long to, unsigned long size, pgprot_t prot);
-
-#ifndef CONFIG_DEBUG_PAGEALLOC
-static inline void
-kernel_map_pages(struct page *page, int numpages, int enable)
-{
-}
-#endif
-
-#ifndef CONFIG_ARCH_GATE_AREA
-extern struct vm_area_struct *get_gate_vma(struct task_struct *tsk);
-int in_gate_area(struct task_struct *task, unsigned long addr);
-#endif
-
-#endif /* __KERNEL__ */
-#endif /* _LINUX_MM_H */
+++ /dev/null
-/*
- * For boards with physically mapped flash and using
- * drivers/mtd/maps/physmap.c mapping driver.
- *
- * $Id: physmap.h,v 1.2 2004/07/14 17:48:46 dwmw2 Exp $
- *
- * Copyright (C) 2003 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#ifndef __LINUX_MTD_PHYSMAP__
-
-#include <linux/config.h>
-
-#if defined(CONFIG_MTD_PHYSMAP)
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-/*
- * The map_info for physmap. Board can override size, buswidth, phys,
- * (*set_vpp)(), etc in their initial setup routine.
- */
-extern struct map_info physmap_map;
-
-/*
- * Board needs to specify the exact mapping during their setup time.
- */
-static inline void physmap_configure(unsigned long addr, unsigned long size, int buswidth, void (*set_vpp)(struct map_info *, int) )
-{
- physmap_map.phys = addr;
- physmap_map.size = size;
- physmap_map.buswidth = buswidth;
- physmap_map.set_vpp = set_vpp;
-}
-
-#if defined(CONFIG_MTD_PARTITIONS)
-
-/*
- * Machines that wish to do flash partition may want to call this function in
- * their setup routine.
- *
- * physmap_set_partitions(mypartitions, num_parts);
- *
- * Note that one can always override this hard-coded partition with
- * command line partition (you need to enable CONFIG_MTD_CMDLINE_PARTS).
- */
-void physmap_set_partitions(struct mtd_partition *parts, int num_parts);
-
-#endif /* defined(CONFIG_MTD_PARTITIONS) */
-#endif /* defined(CONFIG_MTD) */
-
-#endif /* __LINUX_MTD_PHYSMAP__ */
-
+++ /dev/null
-#ifndef _IPT_ADDRTYPE_H
-#define _IPT_ADDRTYPE_H
-
-struct ipt_addrtype_info {
- u_int16_t source; /* source-type mask */
- u_int16_t dest; /* dest-type mask */
- u_int32_t invert_source;
- u_int32_t invert_dest;
-};
-
-#endif
+++ /dev/null
-#ifndef _IPT_REALM_H
-#define _IPT_REALM_H
-
-struct ipt_realm_info {
- u_int32_t id;
- u_int32_t mask;
- u_int8_t invert;
-};
-
-#endif /* _IPT_REALM_H */
+++ /dev/null
-/*
- * Definitions for MIBs
- *
- * Author: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
- */
-
-#ifndef _LINUX_SNMP_H
-#define _LINUX_SNMP_H
-
-/* ipstats mib definitions */
-/*
- * RFC 1213: MIB-II
- * RFC 2011 (updates 1213): SNMPv2-MIB-IP
- * RFC 2863: Interfaces Group MIB
- * RFC 2465: IPv6 MIB: General Group
- * draft-ietf-ipv6-rfc2011-update-10.txt: MIB for IP: IP Statistics Tables
- */
-enum
-{
- IPSTATS_MIB_NUM = 0,
- IPSTATS_MIB_INRECEIVES, /* InReceives */
- IPSTATS_MIB_INHDRERRORS, /* InHdrErrors */
- IPSTATS_MIB_INTOOBIGERRORS, /* InTooBigErrors */
- IPSTATS_MIB_INNOROUTES, /* InNoRoutes */
- IPSTATS_MIB_INADDRERRORS, /* InAddrErrors */
- IPSTATS_MIB_INUNKNOWNPROTOS, /* InUnknownProtos */
- IPSTATS_MIB_INTRUNCATEDPKTS, /* InTruncatedPkts */
- IPSTATS_MIB_INDISCARDS, /* InDiscards */
- IPSTATS_MIB_INDELIVERS, /* InDelivers */
- IPSTATS_MIB_OUTFORWDATAGRAMS, /* OutForwDatagrams */
- IPSTATS_MIB_OUTREQUESTS, /* OutRequests */
- IPSTATS_MIB_OUTDISCARDS, /* OutDiscards */
- IPSTATS_MIB_OUTNOROUTES, /* OutNoRoutes */
- IPSTATS_MIB_REASMTIMEOUT, /* ReasmTimeout */
- IPSTATS_MIB_REASMREQDS, /* ReasmReqds */
- IPSTATS_MIB_REASMOKS, /* ReasmOKs */
- IPSTATS_MIB_REASMFAILS, /* ReasmFails */
- IPSTATS_MIB_FRAGOKS, /* FragOKs */
- IPSTATS_MIB_FRAGFAILS, /* FragFails */
- IPSTATS_MIB_FRAGCREATES, /* FragCreates */
- IPSTATS_MIB_INMCASTPKTS, /* InMcastPkts */
- IPSTATS_MIB_OUTMCASTPKTS, /* OutMcastPkts */
- __IPSTATS_MIB_MAX
-};
-
-/* icmp mib definitions */
-/*
- * RFC 1213: MIB-II ICMP Group
- * RFC 2011 (updates 1213): SNMPv2 MIB for IP: ICMP group
- */
-enum
-{
- ICMP_MIB_NUM = 0,
- ICMP_MIB_INMSGS, /* InMsgs */
- ICMP_MIB_INERRORS, /* InErrors */
- ICMP_MIB_INDESTUNREACHS, /* InDestUnreachs */
- ICMP_MIB_INTIMEEXCDS, /* InTimeExcds */
- ICMP_MIB_INPARMPROBS, /* InParmProbs */
- ICMP_MIB_INSRCQUENCHS, /* InSrcQuenchs */
- ICMP_MIB_INREDIRECTS, /* InRedirects */
- ICMP_MIB_INECHOS, /* InEchos */
- ICMP_MIB_INECHOREPS, /* InEchoReps */
- ICMP_MIB_INTIMESTAMPS, /* InTimestamps */
- ICMP_MIB_INTIMESTAMPREPS, /* InTimestampReps */
- ICMP_MIB_INADDRMASKS, /* InAddrMasks */
- ICMP_MIB_INADDRMASKREPS, /* InAddrMaskReps */
- ICMP_MIB_OUTMSGS, /* OutMsgs */
- ICMP_MIB_OUTERRORS, /* OutErrors */
- ICMP_MIB_OUTDESTUNREACHS, /* OutDestUnreachs */
- ICMP_MIB_OUTTIMEEXCDS, /* OutTimeExcds */
- ICMP_MIB_OUTPARMPROBS, /* OutParmProbs */
- ICMP_MIB_OUTSRCQUENCHS, /* OutSrcQuenchs */
- ICMP_MIB_OUTREDIRECTS, /* OutRedirects */
- ICMP_MIB_OUTECHOS, /* OutEchos */
- ICMP_MIB_OUTECHOREPS, /* OutEchoReps */
- ICMP_MIB_OUTTIMESTAMPS, /* OutTimestamps */
- ICMP_MIB_OUTTIMESTAMPREPS, /* OutTimestampReps */
- ICMP_MIB_OUTADDRMASKS, /* OutAddrMasks */
- ICMP_MIB_OUTADDRMASKREPS, /* OutAddrMaskReps */
- __ICMP_MIB_MAX
-};
-
-/* icmp6 mib definitions */
-/*
- * RFC 2466: ICMPv6-MIB
- */
-enum
-{
- ICMP6_MIB_NUM = 0,
- ICMP6_MIB_INMSGS, /* InMsgs */
- ICMP6_MIB_INERRORS, /* InErrors */
- ICMP6_MIB_INDESTUNREACHS, /* InDestUnreachs */
- ICMP6_MIB_INPKTTOOBIGS, /* InPktTooBigs */
- ICMP6_MIB_INTIMEEXCDS, /* InTimeExcds */
- ICMP6_MIB_INPARMPROBLEMS, /* InParmProblems */
- ICMP6_MIB_INECHOS, /* InEchos */
- ICMP6_MIB_INECHOREPLIES, /* InEchoReplies */
- ICMP6_MIB_INGROUPMEMBQUERIES, /* InGroupMembQueries */
- ICMP6_MIB_INGROUPMEMBRESPONSES, /* InGroupMembResponses */
- ICMP6_MIB_INGROUPMEMBREDUCTIONS, /* InGroupMembReductions */
- ICMP6_MIB_INROUTERSOLICITS, /* InRouterSolicits */
- ICMP6_MIB_INROUTERADVERTISEMENTS, /* InRouterAdvertisements */
- ICMP6_MIB_INNEIGHBORSOLICITS, /* InNeighborSolicits */
- ICMP6_MIB_INNEIGHBORADVERTISEMENTS, /* InNeighborAdvertisements */
- ICMP6_MIB_INREDIRECTS, /* InRedirects */
- ICMP6_MIB_OUTMSGS, /* OutMsgs */
- ICMP6_MIB_OUTDESTUNREACHS, /* OutDestUnreachs */
- ICMP6_MIB_OUTPKTTOOBIGS, /* OutPktTooBigs */
- ICMP6_MIB_OUTTIMEEXCDS, /* OutTimeExcds */
- ICMP6_MIB_OUTPARMPROBLEMS, /* OutParmProblems */
- ICMP6_MIB_OUTECHOREPLIES, /* OutEchoReplies */
- ICMP6_MIB_OUTROUTERSOLICITS, /* OutRouterSolicits */
- ICMP6_MIB_OUTNEIGHBORSOLICITS, /* OutNeighborSolicits */
- ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS, /* OutNeighborAdvertisements */
- ICMP6_MIB_OUTREDIRECTS, /* OutRedirects */
- ICMP6_MIB_OUTGROUPMEMBRESPONSES, /* OutGroupMembResponses */
- ICMP6_MIB_OUTGROUPMEMBREDUCTIONS, /* OutGroupMembReductions */
- __ICMP6_MIB_MAX
-};
-
-/* tcp mib definitions */
-/*
- * RFC 1213: MIB-II TCP group
- * RFC 2012 (updates 1213): SNMPv2-MIB-TCP
- */
-enum
-{
- TCP_MIB_NUM = 0,
- TCP_MIB_RTOALGORITHM, /* RtoAlgorithm */
- TCP_MIB_RTOMIN, /* RtoMin */
- TCP_MIB_RTOMAX, /* RtoMax */
- TCP_MIB_MAXCONN, /* MaxConn */
- TCP_MIB_ACTIVEOPENS, /* ActiveOpens */
- TCP_MIB_PASSIVEOPENS, /* PassiveOpens */
- TCP_MIB_ATTEMPTFAILS, /* AttemptFails */
- TCP_MIB_ESTABRESETS, /* EstabResets */
- TCP_MIB_CURRESTAB, /* CurrEstab */
- TCP_MIB_INSEGS, /* InSegs */
- TCP_MIB_OUTSEGS, /* OutSegs */
- TCP_MIB_RETRANSSEGS, /* RetransSegs */
- TCP_MIB_INERRS, /* InErrs */
- TCP_MIB_OUTRSTS, /* OutRsts */
- __TCP_MIB_MAX
-};
-
-/* udp mib definitions */
-/*
- * RFC 1213: MIB-II UDP group
- * RFC 2013 (updates 1213): SNMPv2-MIB-UDP
- */
-enum
-{
- UDP_MIB_NUM = 0,
- UDP_MIB_INDATAGRAMS, /* InDatagrams */
- UDP_MIB_NOPORTS, /* NoPorts */
- UDP_MIB_INERRORS, /* InErrors */
- UDP_MIB_OUTDATAGRAMS, /* OutDatagrams */
- __UDP_MIB_MAX
-};
-
-/* sctp mib definitions */
-/*
- * draft-ietf-sigtran-sctp-mib-07.txt
- */
-enum
-{
- SCTP_MIB_NUM = 0,
- SCTP_MIB_CURRESTAB, /* CurrEstab */
- SCTP_MIB_ACTIVEESTABS, /* ActiveEstabs */
- SCTP_MIB_PASSIVEESTABS, /* PassiveEstabs */
- SCTP_MIB_ABORTEDS, /* Aborteds */
- SCTP_MIB_SHUTDOWNS, /* Shutdowns */
- SCTP_MIB_OUTOFBLUES, /* OutOfBlues */
- SCTP_MIB_CHECKSUMERRORS, /* ChecksumErrors */
- SCTP_MIB_OUTCTRLCHUNKS, /* OutCtrlChunks */
- SCTP_MIB_OUTORDERCHUNKS, /* OutOrderChunks */
- SCTP_MIB_OUTUNORDERCHUNKS, /* OutUnorderChunks */
- SCTP_MIB_INCTRLCHUNKS, /* InCtrlChunks */
- SCTP_MIB_INORDERCHUNKS, /* InOrderChunks */
- SCTP_MIB_INUNORDERCHUNKS, /* InUnorderChunks */
- SCTP_MIB_FRAGUSRMSGS, /* FragUsrMsgs */
- SCTP_MIB_REASMUSRMSGS, /* ReasmUsrMsgs */
- SCTP_MIB_OUTSCTPPACKS, /* OutSCTPPacks */
- SCTP_MIB_INSCTPPACKS, /* InSCTPPacks */
- SCTP_MIB_RTOALGORITHM, /* RtoAlgorithm */
- SCTP_MIB_RTOMIN, /* RtoMin */
- SCTP_MIB_RTOMAX, /* RtoMax */
- SCTP_MIB_RTOINITIAL, /* RtoInitial */
- SCTP_MIB_VALCOOKIELIFE, /* ValCookieLife */
- SCTP_MIB_MAXINITRETR, /* MaxInitRetr */
- __SCTP_MIB_MAX
-};
-
-/* linux mib definitions */
-enum
-{
- LINUX_MIB_NUM = 0,
- LINUX_MIB_SYNCOOKIESSENT, /* SyncookiesSent */
- LINUX_MIB_SYNCOOKIESRECV, /* SyncookiesRecv */
- LINUX_MIB_SYNCOOKIESFAILED, /* SyncookiesFailed */
- LINUX_MIB_EMBRYONICRSTS, /* EmbryonicRsts */
- LINUX_MIB_PRUNECALLED, /* PruneCalled */
- LINUX_MIB_RCVPRUNED, /* RcvPruned */
- LINUX_MIB_OFOPRUNED, /* OfoPruned */
- LINUX_MIB_OUTOFWINDOWICMPS, /* OutOfWindowIcmps */
- LINUX_MIB_LOCKDROPPEDICMPS, /* LockDroppedIcmps */
- LINUX_MIB_ARPFILTER, /* ArpFilter */
- LINUX_MIB_TIMEWAITED, /* TimeWaited */
- LINUX_MIB_TIMEWAITRECYCLED, /* TimeWaitRecycled */
- LINUX_MIB_TIMEWAITKILLED, /* TimeWaitKilled */
- LINUX_MIB_PAWSPASSIVEREJECTED, /* PAWSPassiveRejected */
- LINUX_MIB_PAWSACTIVEREJECTED, /* PAWSActiveRejected */
- LINUX_MIB_PAWSESTABREJECTED, /* PAWSEstabRejected */
- LINUX_MIB_DELAYEDACKS, /* DelayedACKs */
- LINUX_MIB_DELAYEDACKLOCKED, /* DelayedACKLocked */
- LINUX_MIB_DELAYEDACKLOST, /* DelayedACKLost */
- LINUX_MIB_LISTENOVERFLOWS, /* ListenOverflows */
- LINUX_MIB_LISTENDROPS, /* ListenDrops */
- LINUX_MIB_TCPPREQUEUED, /* TCPPrequeued */
- LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG, /* TCPDirectCopyFromBacklog */
- LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE, /* TCPDirectCopyFromPrequeue */
- LINUX_MIB_TCPPREQUEUEDROPPED, /* TCPPrequeueDropped */
- LINUX_MIB_TCPHPHITS, /* TCPHPHits */
- LINUX_MIB_TCPHPHITSTOUSER, /* TCPHPHitsToUser */
- LINUX_MIB_TCPPUREACKS, /* TCPPureAcks */
- LINUX_MIB_TCPHPACKS, /* TCPHPAcks */
- LINUX_MIB_TCPRENORECOVERY, /* TCPRenoRecovery */
- LINUX_MIB_TCPSACKRECOVERY, /* TCPSackRecovery */
- LINUX_MIB_TCPSACKRENEGING, /* TCPSACKReneging */
- LINUX_MIB_TCPFACKREORDER, /* TCPFACKReorder */
- LINUX_MIB_TCPSACKREORDER, /* TCPSACKReorder */
- LINUX_MIB_TCPRENOREORDER, /* TCPRenoReorder */
- LINUX_MIB_TCPTSREORDER, /* TCPTSReorder */
- LINUX_MIB_TCPFULLUNDO, /* TCPFullUndo */
- LINUX_MIB_TCPPARTIALUNDO, /* TCPPartialUndo */
- LINUX_MIB_TCPDSACKUNDO, /* TCPDSACKUndo */
- LINUX_MIB_TCPLOSSUNDO, /* TCPLossUndo */
- LINUX_MIB_TCPLOSS, /* TCPLoss */
- LINUX_MIB_TCPLOSTRETRANSMIT, /* TCPLostRetransmit */
- LINUX_MIB_TCPRENOFAILURES, /* TCPRenoFailures */
- LINUX_MIB_TCPSACKFAILURES, /* TCPSackFailures */
- LINUX_MIB_TCPLOSSFAILURES, /* TCPLossFailures */
- LINUX_MIB_TCPFASTRETRANS, /* TCPFastRetrans */
- LINUX_MIB_TCPFORWARDRETRANS, /* TCPForwardRetrans */
- LINUX_MIB_TCPSLOWSTARTRETRANS, /* TCPSlowStartRetrans */
- LINUX_MIB_TCPTIMEOUTS, /* TCPTimeouts */
- LINUX_MIB_TCPRENORECOVERYFAIL, /* TCPRenoRecoveryFail */
- LINUX_MIB_TCPSACKRECOVERYFAIL, /* TCPSackRecoveryFail */
- LINUX_MIB_TCPSCHEDULERFAILED, /* TCPSchedulerFailed */
- LINUX_MIB_TCPRCVCOLLAPSED, /* TCPRcvCollapsed */
- LINUX_MIB_TCPDSACKOLDSENT, /* TCPDSACKOldSent */
- LINUX_MIB_TCPDSACKOFOSENT, /* TCPDSACKOfoSent */
- LINUX_MIB_TCPDSACKRECV, /* TCPDSACKRecv */
- LINUX_MIB_TCPDSACKOFORECV, /* TCPDSACKOfoRecv */
- LINUX_MIB_TCPABORTONSYN, /* TCPAbortOnSyn */
- LINUX_MIB_TCPABORTONDATA, /* TCPAbortOnData */
- LINUX_MIB_TCPABORTONCLOSE, /* TCPAbortOnClose */
- LINUX_MIB_TCPABORTONMEMORY, /* TCPAbortOnMemory */
- LINUX_MIB_TCPABORTONTIMEOUT, /* TCPAbortOnTimeout */
- LINUX_MIB_TCPABORTONLINGER, /* TCPAbortOnLinger */
- LINUX_MIB_TCPABORTFAILED, /* TCPAbortFailed */
- LINUX_MIB_TCPMEMORYPRESSURES, /* TCPMemoryPressures */
- __LINUX_MIB_MAX
-};
-
-#endif /* _LINUX_SNMP_H */
+++ /dev/null
-/* OmniVision* camera chip driver API
- *
- * Copyright (c) 1999-2004 Mark McClelland
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. NO WARRANTY OF ANY KIND is expressed or implied.
- *
- * * OmniVision is a trademark of OmniVision Technologies, Inc. This driver
- * is not sponsored or developed by them.
- */
-
-#ifndef __LINUX_OVCAMCHIP_H
-#define __LINUX_OVCAMCHIP_H
-
-#include <linux/videodev.h>
-#include <linux/i2c.h>
-
-/* Remove these once they are officially defined */
-#ifndef I2C_DRIVERID_OVCAMCHIP
- #define I2C_DRIVERID_OVCAMCHIP 0xf00f
-#endif
-#ifndef I2C_HW_SMBUS_OV511
- #define I2C_HW_SMBUS_OV511 0xfe
-#endif
-#ifndef I2C_HW_SMBUS_OV518
- #define I2C_HW_SMBUS_OV518 0xff
-#endif
-#ifndef I2C_HW_SMBUS_OVFX2
- #define I2C_HW_SMBUS_OVFX2 0xfd
-#endif
-
-/* --------------------------------- */
-/* ENUMERATIONS */
-/* --------------------------------- */
-
-/* Controls */
-enum {
- OVCAMCHIP_CID_CONT, /* Contrast */
- OVCAMCHIP_CID_BRIGHT, /* Brightness */
- OVCAMCHIP_CID_SAT, /* Saturation */
- OVCAMCHIP_CID_HUE, /* Hue */
- OVCAMCHIP_CID_EXP, /* Exposure */
- OVCAMCHIP_CID_FREQ, /* Light frequency */
- OVCAMCHIP_CID_BANDFILT, /* Banding filter */
- OVCAMCHIP_CID_AUTOBRIGHT, /* Auto brightness */
- OVCAMCHIP_CID_AUTOEXP, /* Auto exposure */
- OVCAMCHIP_CID_BACKLIGHT, /* Back light compensation */
- OVCAMCHIP_CID_MIRROR, /* Mirror horizontally */
-};
-
-/* Chip types */
-#define NUM_CC_TYPES 9
-enum {
- CC_UNKNOWN,
- CC_OV76BE,
- CC_OV7610,
- CC_OV7620,
- CC_OV7620AE,
- CC_OV6620,
- CC_OV6630,
- CC_OV6630AE,
- CC_OV6630AF,
-};
-
-/* --------------------------------- */
-/* I2C ADDRESSES */
-/* --------------------------------- */
-
-#define OV7xx0_SID (0x42 >> 1)
-#define OV6xx0_SID (0xC0 >> 1)
-
-/* --------------------------------- */
-/* API */
-/* --------------------------------- */
-
-struct ovcamchip_control {
- __u32 id;
- __s32 value;
-};
-
-struct ovcamchip_window {
- int x;
- int y;
- int width;
- int height;
- int format;
- int quarter; /* Scale width and height down 2x */
-
- /* This stuff will be removed eventually */
- int clockdiv; /* Clock divisor setting */
-};
-
-/* Commands */
-#define OVCAMCHIP_CMD_Q_SUBTYPE _IOR (0x88, 0x00, int)
-#define OVCAMCHIP_CMD_INITIALIZE _IOW (0x88, 0x01, int)
-/* You must call OVCAMCHIP_CMD_INITIALIZE before any of commands below! */
-#define OVCAMCHIP_CMD_S_CTRL _IOW (0x88, 0x02, struct ovcamchip_control)
-#define OVCAMCHIP_CMD_G_CTRL _IOWR (0x88, 0x03, struct ovcamchip_control)
-#define OVCAMCHIP_CMD_S_MODE _IOW (0x88, 0x04, struct ovcamchip_window)
-#define OVCAMCHIP_MAX_CMD _IO (0x88, 0x3f)
-
-#endif
+++ /dev/null
-/*
- * $Id: inftl-user.h,v 1.1 2004/05/05 15:17:00 dwmw2 Exp $
- *
- * Parts of INFTL headers shared with userspace
- *
- */
-
-#ifndef __MTD_INFTL_USER_H__
-#define __MTD_INFTL_USER_H__
-
-#define OSAK_VERSION 0x5120
-#define PERCENTUSED 98
-
-#define SECTORSIZE 512
-
-/* Block Control Information */
-
-struct inftl_bci {
- uint8_t ECCsig[6];
- uint8_t Status;
- uint8_t Status1;
-} __attribute__((packed));
-
-struct inftl_unithead1 {
- uint16_t virtualUnitNo;
- uint16_t prevUnitNo;
- uint8_t ANAC;
- uint8_t NACs;
- uint8_t parityPerField;
- uint8_t discarded;
-} __attribute__((packed));
-
-struct inftl_unithead2 {
- uint8_t parityPerField;
- uint8_t ANAC;
- uint16_t prevUnitNo;
- uint16_t virtualUnitNo;
- uint8_t NACs;
- uint8_t discarded;
-} __attribute__((packed));
-
-struct inftl_unittail {
- uint8_t Reserved[4];
- uint16_t EraseMark;
- uint16_t EraseMark1;
-} __attribute__((packed));
-
-union inftl_uci {
- struct inftl_unithead1 a;
- struct inftl_unithead2 b;
- struct inftl_unittail c;
-};
-
-struct inftl_oob {
- struct inftl_bci b;
- union inftl_uci u;
-};
-
-
-/* INFTL Media Header */
-
-struct INFTLPartition {
- __u32 virtualUnits;
- __u32 firstUnit;
- __u32 lastUnit;
- __u32 flags;
- __u32 spareUnits;
- __u32 Reserved0;
- __u32 Reserved1;
-} __attribute__((packed));
-
-struct INFTLMediaHeader {
- char bootRecordID[8];
- __u32 NoOfBootImageBlocks;
- __u32 NoOfBinaryPartitions;
- __u32 NoOfBDTLPartitions;
- __u32 BlockMultiplierBits;
- __u32 FormatFlags;
- __u32 OsakVersion;
- __u32 PercentUsed;
- struct INFTLPartition Partitions[4];
-} __attribute__((packed));
-
-/* Partition flag types */
-#define INFTL_BINARY 0x20000000
-#define INFTL_BDTL 0x40000000
-#define INFTL_LAST 0x80000000
-
-#endif /* __MTD_INFTL_USER_H__ */
-
-
+++ /dev/null
-/*
- * $Id: jffs2-user.h,v 1.1 2004/05/05 11:57:54 dwmw2 Exp $
- *
- * JFFS2 definitions for use in user space only
- */
-
-#ifndef __JFFS2_USER_H__
-#define __JFFS2_USER_H__
-
-/* This file is blessed for inclusion by userspace */
-#include <linux/jffs2.h>
-#include <endian.h>
-#include <byteswap.h>
-
-#undef cpu_to_je16
-#undef cpu_to_je32
-#undef cpu_to_jemode
-#undef je16_to_cpu
-#undef je32_to_cpu
-#undef jemode_to_cpu
-
-extern int target_endian;
-
-#define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
-#define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
-
-#define cpu_to_je16(x) ((jint16_t){t16(x)})
-#define cpu_to_je32(x) ((jint32_t){t32(x)})
-#define cpu_to_jemode(x) ((jmode_t){t32(x)})
-
-#define je16_to_cpu(x) (t16((x).v16))
-#define je32_to_cpu(x) (t32((x).v32))
-#define jemode_to_cpu(x) (t32((x).m))
-
-#endif /* __JFFS2_USER_H__ */
+++ /dev/null
-/*
- * $Id: mtd-abi.h,v 1.5 2004/06/22 09:29:35 gleixner Exp $
- *
- * Portions of MTD ABI definition which are shared by kernel and user space
- */
-
-#ifndef __MTD_ABI_H__
-#define __MTD_ABI_H__
-
-struct erase_info_user {
- uint32_t start;
- uint32_t length;
-};
-
-struct mtd_oob_buf {
- uint32_t start;
- uint32_t length;
- unsigned char *ptr;
-};
-
-#define MTD_ABSENT 0
-#define MTD_RAM 1
-#define MTD_ROM 2
-#define MTD_NORFLASH 3
-#define MTD_NANDFLASH 4
-#define MTD_PEROM 5
-#define MTD_OTHER 14
-#define MTD_UNKNOWN 15
-
-#define MTD_CLEAR_BITS 1 // Bits can be cleared (flash)
-#define MTD_SET_BITS 2 // Bits can be set
-#define MTD_ERASEABLE 4 // Has an erase function
-#define MTD_WRITEB_WRITEABLE 8 // Direct IO is possible
-#define MTD_VOLATILE 16 // Set for RAMs
-#define MTD_XIP 32 // eXecute-In-Place possible
-#define MTD_OOB 64 // Out-of-band data (NAND flash)
-#define MTD_ECC 128 // Device capable of automatic ECC
-
-// Some common devices / combinations of capabilities
-#define MTD_CAP_ROM 0
-#define MTD_CAP_RAM (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE)
-#define MTD_CAP_NORFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE)
-#define MTD_CAP_NANDFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB)
-#define MTD_WRITEABLE (MTD_CLEAR_BITS|MTD_SET_BITS)
-
-
-// Types of automatic ECC/Checksum available
-#define MTD_ECC_NONE 0 // No automatic ECC available
-#define MTD_ECC_RS_DiskOnChip 1 // Automatic ECC on DiskOnChip
-#define MTD_ECC_SW 2 // SW ECC for Toshiba & Samsung devices
-
-/* ECC byte placement */
-#define MTD_NANDECC_OFF 0 // Switch off ECC (Not recommended)
-#define MTD_NANDECC_PLACE 1 // Use the given placement in the structure (YAFFS1 legacy mode)
-#define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme
-#define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read)
-
-struct mtd_info_user {
- uint8_t type;
- uint32_t flags;
- uint32_t size; // Total size of the MTD
- uint32_t erasesize;
- uint32_t oobblock; // Size of OOB blocks (e.g. 512)
- uint32_t oobsize; // Amount of OOB data per block (e.g. 16)
- uint32_t ecctype;
- uint32_t eccsize;
-};
-
-struct region_info_user {
- uint32_t offset; /* At which this region starts,
- * from the beginning of the MTD */
- uint32_t erasesize; /* For this region */
- uint32_t numblocks; /* Number of blocks in this region */
- uint32_t regionindex;
-};
-
-#define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
-#define MEMERASE _IOW('M', 2, struct erase_info_user)
-#define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
-#define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
-#define MEMLOCK _IOW('M', 5, struct erase_info_user)
-#define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
-#define MEMGETREGIONCOUNT _IOR('M', 7, int)
-#define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
-#define MEMSETOOBSEL _IOW('M', 9, struct nand_oobinfo)
-#define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo)
-#define MEMGETBADBLOCK _IOW('M', 11, loff_t)
-#define MEMSETBADBLOCK _IOW('M', 12, loff_t)
-
-struct nand_oobinfo {
- uint32_t useecc;
- uint32_t eccbytes;
- uint32_t oobfree[8][2];
- uint32_t eccpos[32];
-};
-
-#endif /* __MTD_ABI_H__ */
+++ /dev/null
-/*
- * $Id: mtd-user.h,v 1.2 2004/05/05 14:44:57 dwmw2 Exp $
- *
- * MTD ABI header for use by user space only.
- */
-
-#ifndef __MTD_USER_H__
-#define __MTD_USER_H__
-
-#include <stdint.h>
-
-/* This file is blessed for inclusion by userspace */
-#include <mtd/mtd-abi.h>
-
-typedef struct mtd_info_user mtd_info_t;
-typedef struct erase_info_user erase_info_t;
-typedef struct region_info_user region_info_t;
-typedef struct nand_oobinfo nand_oobinfo_t;
-
-#endif /* __MTD_USER_H__ */
+++ /dev/null
-/*
- * $Id: nftl-user.h,v 1.1 2004/05/05 14:44:57 dwmw2 Exp $
- *
- * Parts of NFTL headers shared with userspace
- *
- */
-
-#ifndef __MTD_NFTL_USER_H__
-#define __MTD_NFTL_USER_H__
-
-/* Block Control Information */
-
-struct nftl_bci {
- unsigned char ECCSig[6];
- uint8_t Status;
- uint8_t Status1;
-}__attribute__((packed));
-
-/* Unit Control Information */
-
-struct nftl_uci0 {
- uint16_t VirtUnitNum;
- uint16_t ReplUnitNum;
- uint16_t SpareVirtUnitNum;
- uint16_t SpareReplUnitNum;
-} __attribute__((packed));
-
-struct nftl_uci1 {
- uint32_t WearInfo;
- uint16_t EraseMark;
- uint16_t EraseMark1;
-} __attribute__((packed));
-
-struct nftl_uci2 {
- uint16_t FoldMark;
- uint16_t FoldMark1;
- uint32_t unused;
-} __attribute__((packed));
-
-union nftl_uci {
- struct nftl_uci0 a;
- struct nftl_uci1 b;
- struct nftl_uci2 c;
-};
-
-struct nftl_oob {
- struct nftl_bci b;
- union nftl_uci u;
-};
-
-/* NFTL Media Header */
-
-struct NFTLMediaHeader {
- char DataOrgID[6];
- uint16_t NumEraseUnits;
- uint16_t FirstPhysicalEUN;
- uint32_t FormattedSize;
- unsigned char UnitSizeFactor;
-} __attribute__((packed));
-
-#define MAX_ERASE_ZONES (8192 - 512)
-
-#define ERASE_MARK 0x3c69
-#define SECTOR_FREE 0xff
-#define SECTOR_USED 0x55
-#define SECTOR_IGNORE 0x11
-#define SECTOR_DELETED 0x00
-
-#define FOLD_MARK_IN_PROGRESS 0x5555
-
-#define ZONE_GOOD 0xff
-#define ZONE_BAD_ORIGINAL 0
-#define ZONE_BAD_MARKED 7
-
-
-#endif /* __MTD_NFTL_USER_H__ */
+++ /dev/null
-/*
- * INET An implementation of the TCP/IP protocol suite for the LINUX
- * operating system. INET is implemented using the BSD Socket
- * interface as the means of communication with the user level.
- *
- * Checksumming functions for IPv6
- *
- * Authors: Jorge Cwik, <jorge@laser.satlink.net>
- * Arnt Gulbrandsen, <agulbra@nvg.unit.no>
- * Borrows very liberally from tcp.c and ip.c, see those
- * files for more names.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-/*
- * Fixes:
- *
- * Ralf Baechle : generic ipv6 checksum
- * <ralf@waldorf-gmbh.de>
- */
-
-#ifndef _CHECKSUM_IPV6_H
-#define _CHECKSUM_IPV6_H
-
-#include <asm/types.h>
-#include <asm/byteorder.h>
-#include <net/ip.h>
-#include <asm/checksum.h>
-#include <linux/in6.h>
-
-#ifndef _HAVE_ARCH_IPV6_CSUM
-
-static __inline__ unsigned short int csum_ipv6_magic(struct in6_addr *saddr,
- struct in6_addr *daddr,
- __u16 len,
- unsigned short proto,
- unsigned int csum)
-{
-
- int carry;
- __u32 ulen;
- __u32 uproto;
-
- csum += saddr->s6_addr32[0];
- carry = (csum < saddr->s6_addr32[0]);
- csum += carry;
-
- csum += saddr->s6_addr32[1];
- carry = (csum < saddr->s6_addr32[1]);
- csum += carry;
-
- csum += saddr->s6_addr32[2];
- carry = (csum < saddr->s6_addr32[2]);
- csum += carry;
-
- csum += saddr->s6_addr32[3];
- carry = (csum < saddr->s6_addr32[3]);
- csum += carry;
-
- csum += daddr->s6_addr32[0];
- carry = (csum < daddr->s6_addr32[0]);
- csum += carry;
-
- csum += daddr->s6_addr32[1];
- carry = (csum < daddr->s6_addr32[1]);
- csum += carry;
-
- csum += daddr->s6_addr32[2];
- carry = (csum < daddr->s6_addr32[2]);
- csum += carry;
-
- csum += daddr->s6_addr32[3];
- carry = (csum < daddr->s6_addr32[3]);
- csum += carry;
-
- ulen = htonl((__u32) len);
- csum += ulen;
- carry = (csum < ulen);
- csum += carry;
-
- uproto = htonl(proto);
- csum += uproto;
- carry = (csum < uproto);
- csum += carry;
-
- return csum_fold(csum);
-}
-
-#endif
-#endif
+++ /dev/null
-#ifndef __NET_PKT_ACT_H
-#define __NET_PKT_ACT_H
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/bitops.h>
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/in.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <net/sock.h>
-#include <net/pkt_sched.h>
-
-#define tca_st(val) (struct tcf_##val *)
-#define PRIV(a,name) ( tca_st(name) (a)->priv)
-
-#if 0 /* control */
-#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define DPRINTK(format,args...)
-#endif
-
-#if 0 /* data */
-#define D2PRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define D2PRINTK(format,args...)
-#endif
-
-static __inline__ unsigned
-tcf_hash(u32 index)
-{
- return index & MY_TAB_MASK;
-}
-
-/* probably move this from being inline
- * and put into act_generic
-*/
-static inline void
-tcf_hash_destroy(struct tcf_st *p)
-{
- unsigned h = tcf_hash(p->index);
- struct tcf_st **p1p;
-
- for (p1p = &tcf_ht[h]; *p1p; p1p = &(*p1p)->next) {
- if (*p1p == p) {
- write_lock_bh(&tcf_t_lock);
- *p1p = p->next;
- write_unlock_bh(&tcf_t_lock);
-#ifdef CONFIG_NET_ESTIMATOR
- qdisc_kill_estimator(&p->stats);
-#endif
- kfree(p);
- return;
- }
- }
- BUG_TRAP(0);
-}
-
-static inline int
-tcf_hash_release(struct tcf_st *p, int bind )
-{
- int ret = 0;
- if (p) {
- if (bind) {
- p->bindcnt--;
- }
- p->refcnt--;
- if(p->bindcnt <=0 && p->refcnt <= 0) {
- tcf_hash_destroy(p);
- ret = 1;
- }
- }
- return ret;
-}
-
-static __inline__ int
-tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb,
- struct tc_action *a)
-{
- struct tcf_st *p;
- int err =0, index = -1,i= 0, s_i = 0, n_i = 0;
- struct rtattr *r ;
-
- read_lock(&tcf_t_lock);
-
- s_i = cb->args[0];
-
- for (i = 0; i < MY_TAB_SIZE; i++) {
- p = tcf_ht[tcf_hash(i)];
-
- for (; p; p = p->next) {
- index++;
- if (index < s_i)
- continue;
- a->priv = p;
- a->order = n_i;
- r = (struct rtattr*) skb->tail;
- RTA_PUT(skb, a->order, 0, NULL);
- err = tcf_action_dump_1(skb, a, 0, 0);
- if (0 > err) {
- index--;
- skb_trim(skb, (u8*)r - skb->data);
- goto done;
- }
- r->rta_len = skb->tail - (u8*)r;
- n_i++;
- if (n_i >= TCA_ACT_MAX_PRIO) {
- goto done;
- }
- }
- }
-done:
- read_unlock(&tcf_t_lock);
- if (n_i)
- cb->args[0] += n_i;
- return n_i;
-
-rtattr_failure:
- skb_trim(skb, (u8*)r - skb->data);
- goto done;
-}
-
-static __inline__ int
-tcf_del_walker(struct sk_buff *skb, struct tc_action *a)
-{
- struct tcf_st *p, *s_p;
- struct rtattr *r ;
- int i= 0, n_i = 0;
-
- r = (struct rtattr*) skb->tail;
- RTA_PUT(skb, a->order, 0, NULL);
- RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);
- for (i = 0; i < MY_TAB_SIZE; i++) {
- p = tcf_ht[tcf_hash(i)];
-
- while (p != NULL) {
- s_p = p->next;
- if (ACT_P_DELETED == tcf_hash_release(p, 0)) {
- module_put(a->ops->owner);
- }
- n_i++;
- p = s_p;
- }
- }
- RTA_PUT(skb, TCA_FCNT, 4, &n_i);
- r->rta_len = skb->tail - (u8*)r;
-
- return n_i;
-rtattr_failure:
- skb_trim(skb, (u8*)r - skb->data);
- return -EINVAL;
-}
-
-static __inline__ int
-tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb, int type,
- struct tc_action *a)
-{
- if (type == RTM_DELACTION) {
- return tcf_del_walker(skb,a);
- } else if (type == RTM_GETACTION) {
- return tcf_dump_walker(skb,cb,a);
- } else {
- printk("tcf_generic_walker: unknown action %d\n",type);
- return -EINVAL;
- }
-}
-
-static __inline__ struct tcf_st *
-tcf_hash_lookup(u32 index)
-{
- struct tcf_st *p;
-
- read_lock(&tcf_t_lock);
- for (p = tcf_ht[tcf_hash(index)]; p; p = p->next) {
- if (p->index == index)
- break;
- }
- read_unlock(&tcf_t_lock);
- return p;
-}
-
-static __inline__ u32
-tcf_hash_new_index(void)
-{
- do {
- if (++idx_gen == 0)
- idx_gen = 1;
- } while (tcf_hash_lookup(idx_gen));
-
- return idx_gen;
-}
-
-
-static inline int
-tcf_hash_search(struct tc_action *a, u32 index)
-{
- struct tcf_st *p = tcf_hash_lookup(index);
-
- if (p != NULL) {
- a->priv = p;
- return 1;
- } else {
- return 0;
- }
-}
-
-#ifdef CONFIG_NET_ACT_INIT
-static inline struct tcf_st *
-tcf_hash_check(struct tc_st *parm, struct tc_action *a, int ovr, int bind)
-{
- struct tcf_st *p = NULL;
- if (parm->index && (p = tcf_hash_lookup(parm->index)) != NULL) {
- spin_lock(&p->lock);
- if (bind) {
- p->bindcnt++;
- p->refcnt++;
- }
- spin_unlock(&p->lock);
- a->priv = (void *) p;
- }
- return p;
-}
-
-static inline struct tcf_st *
-tcf_hash_create(struct tc_st *parm, struct rtattr *est, struct tc_action *a, int size, int ovr, int bind)
-{
- unsigned h;
- struct tcf_st *p = NULL;
-
- p = kmalloc(size, GFP_KERNEL);
- if (p == NULL)
- return p;
-
- memset(p, 0, size);
- p->refcnt = 1;
-
- if (bind) {
- p->bindcnt = 1;
- }
-
- spin_lock_init(&p->lock);
- p->stats_lock = &p->lock;
- p->index = parm->index ? : tcf_hash_new_index();
- p->tm.install = jiffies;
- p->tm.lastuse = jiffies;
-#ifdef CONFIG_NET_ESTIMATOR
- if (est) {
- qdisc_new_estimator(&p->stats, p->stats_lock, est);
- }
-#endif
- h = tcf_hash(p->index);
- write_lock_bh(&tcf_t_lock);
- p->next = tcf_ht[h];
- tcf_ht[h] = p;
- write_unlock_bh(&tcf_t_lock);
-
- a->priv = (void *) p;
- return p;
-}
-
-static inline struct tcf_st *
-tcf_hash_init(struct tc_st *parm, struct rtattr *est, struct tc_action *a, int size, int ovr, int bind)
-{
- struct tcf_st *p;
- p = tcf_hash_check (parm,a,ovr,bind);
- if (NULL == p) {
- return tcf_hash_create(parm, est, a, size, ovr, bind);
- }
-}
-
-#endif
-
-#endif
+++ /dev/null
-#ifndef _SCSI_SCSI_DBG_H
-#define _SCSI_SCSI_DBG_H
-
-struct scsi_cmnd;
-struct scsi_request;
-
-extern void scsi_print_command(struct scsi_cmnd *);
-extern void __scsi_print_command(unsigned char *);
-extern void scsi_print_sense(const char *, struct scsi_cmnd *);
-extern void scsi_print_req_sense(const char *, struct scsi_request *);
-extern void scsi_print_driverbyte(int);
-extern void scsi_print_hostbyte(int);
-extern void scsi_print_status(unsigned char);
-extern int scsi_print_msg(const unsigned char *);
-extern const char *scsi_sense_key_string(unsigned char);
-extern const char *scsi_extd_sense_format(unsigned char, unsigned char);
-
-#endif /* _SCSI_SCSI_DBG_H */
+++ /dev/null
-/*
- * drivers/power/smp.c - Functions for stopping other CPUs.
- *
- * Copyright 2004 Pavel Machek <pavel@suse.cz>
- * Copyright (C) 2002-2003 Nigel Cunningham <ncunningham@clear.net.nz>
- *
- * This file is released under the GPLv2.
- */
-
-#undef DEBUG
-
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-#include <linux/suspend.h>
-#include <linux/module.h>
-#include <asm/atomic.h>
-#include <asm/tlbflush.h>
-
-static atomic_t cpu_counter, freeze;
-
-
-static void smp_pause(void * data)
-{
- struct saved_context ctxt;
- __save_processor_state(&ctxt);
- printk("Sleeping in:\n");
- dump_stack();
- atomic_inc(&cpu_counter);
- while (atomic_read(&freeze)) {
- /* FIXME: restore takes place at random piece inside this.
- This should probably be written in assembly, and
- preserve general-purpose registers, too
-
- What about stack? We may need to move to new stack here.
-
- This should better be ran with interrupts disabled.
- */
- cpu_relax();
- barrier();
- }
- atomic_dec(&cpu_counter);
- __restore_processor_state(&ctxt);
-}
-
-cpumask_t oldmask;
-
-void disable_nonboot_cpus(void)
-{
- printk("Freezing CPUs (at %d)", smp_processor_id());
- oldmask = current->cpus_allowed;
- set_cpus_allowed(current, cpumask_of_cpu(0));
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(HZ);
- printk("...");
- BUG_ON(smp_processor_id() != 0);
-
- /* FIXME: for this to work, all the CPUs must be running
- * "idle" thread (or we deadlock). Is that guaranteed? */
-
- atomic_set(&cpu_counter, 0);
- atomic_set(&freeze, 1);
- smp_call_function(smp_pause, NULL, 0, 0);
- while (atomic_read(&cpu_counter) < (num_online_cpus() - 1)) {
- cpu_relax();
- barrier();
- }
- printk("ok\n");
-}
-
-void enable_nonboot_cpus(void)
-{
- printk("Restarting CPUs");
- atomic_set(&freeze, 0);
- while (atomic_read(&cpu_counter)) {
- cpu_relax();
- barrier();
- }
- printk("...");
- set_cpus_allowed(current, oldmask);
- schedule();
- printk("ok\n");
-
-}
-
-
+++ /dev/null
-/*
- * linux/lib/crc-ccitt.c
- *
- * This source code is licensed under the GNU General Public License,
- * Version 2. See the file COPYING for more details.
- */
-
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/crc-ccitt.h>
-
-/*
- * This mysterious table is just the CRC of each possible byte. It can be
- * computed using the standard bit-at-a-time methods. The polynomial can
- * be seen in entry 128, 0x8408. This corresponds to x^0 + x^5 + x^12.
- * Add the implicit x^16, and you have the standard CRC-CCITT.
- */
-u16 const crc_ccitt_table[256] = {
- 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
- 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
- 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
- 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
- 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
- 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
- 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
- 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
- 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
- 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
- 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
- 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
- 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
- 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
- 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
- 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
- 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
- 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
- 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
- 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
- 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
- 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
- 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
- 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
- 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
- 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
- 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
- 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
- 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
- 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
- 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
- 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
-};
-EXPORT_SYMBOL(crc_ccitt_table);
-
-/**
- * crc_ccitt - recompute the CRC for the data buffer
- * @crc - previous CRC value
- * @buffer - data pointer
- * @len - number of bytes in the buffer
- */
-u16 crc_ccitt(u16 crc, u8 const *buffer, size_t len)
-{
- while (len--)
- crc = crc_ccitt_byte(crc, *buffer++);
- return crc;
-}
-EXPORT_SYMBOL(crc_ccitt);
-
-MODULE_DESCRIPTION("CRC-CCITT calculations");
-MODULE_LICENSE("GPL");
+++ /dev/null
-#
-# Makefile for the linux memory manager.
-#
-
-mmu-y := nommu.o
-mmu-$(CONFIG_MMU) := fremap.o highmem.o madvise.o memory.o mincore.o \
- mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \
- shmem.o vmalloc.o
-
-obj-y := bootmem.o filemap.o mempool.o oom_kill.o fadvise.o \
- page_alloc.o page-writeback.o pdflush.o prio_tree.o \
- readahead.o slab.o swap.o truncate.o vmscan.o \
- $(mmu-y)
-
-obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o
-obj-$(CONFIG_HUGETLBFS) += hugetlb.o
-obj-$(CONFIG_NUMA) += mempolicy.o
+++ /dev/null
-/*
- * mm/mmap.c
- *
- * Written by obz.
- *
- * Address space accounting code <alan@redhat.com>
- */
-
-#include <linux/slab.h>
-#include <linux/shm.h>
-#include <linux/mman.h>
-#include <linux/pagemap.h>
-#include <linux/swap.h>
-#include <linux/syscalls.h>
-#include <linux/init.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/personality.h>
-#include <linux/security.h>
-#include <linux/hugetlb.h>
-#include <linux/profile.h>
-#include <linux/module.h>
-#include <linux/mount.h>
-#include <linux/mempolicy.h>
-#include <linux/rmap.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/cacheflush.h>
-#include <asm/tlb.h>
-
-/*
- * WARNING: the debugging will use recursive algorithms so never enable this
- * unless you know what you are doing.
- */
-#undef DEBUG_MM_RB
-
-/* description of effects of mapping type and prot in current implementation.
- * this is due to the limited x86 page protection hardware. The expected
- * behavior is in parens:
- *
- * map_type prot
- * PROT_NONE PROT_READ PROT_WRITE PROT_EXEC
- * MAP_SHARED r: (no) no r: (yes) yes r: (no) yes r: (no) yes
- * w: (no) no w: (no) no w: (yes) yes w: (no) no
- * x: (no) no x: (no) yes x: (no) yes x: (yes) yes
- *
- * MAP_PRIVATE r: (no) no r: (yes) yes r: (no) yes r: (no) yes
- * w: (no) no w: (no) no w: (copy) copy w: (no) no
- * x: (no) no x: (no) yes x: (no) yes x: (yes) yes
- *
- */
-pgprot_t protection_map[16] = {
- __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
- __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
-};
-
-int sysctl_overcommit_memory = 0; /* default is heuristic overcommit */
-int sysctl_overcommit_ratio = 50; /* default is 50% */
-int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT;
-atomic_t vm_committed_space = ATOMIC_INIT(0);
-
-EXPORT_SYMBOL(sysctl_overcommit_memory);
-EXPORT_SYMBOL(sysctl_overcommit_ratio);
-EXPORT_SYMBOL(sysctl_max_map_count);
-EXPORT_SYMBOL(vm_committed_space);
-
-/*
- * Requires inode->i_mapping->i_mmap_lock
- */
-static void __remove_shared_vm_struct(struct vm_area_struct *vma,
- struct file *file, struct address_space *mapping)
-{
- if (vma->vm_flags & VM_DENYWRITE)
- atomic_inc(&file->f_dentry->d_inode->i_writecount);
- if (vma->vm_flags & VM_SHARED)
- mapping->i_mmap_writable--;
-
- flush_dcache_mmap_lock(mapping);
- if (unlikely(vma->vm_flags & VM_NONLINEAR))
- list_del_init(&vma->shared.vm_set.list);
- else
- vma_prio_tree_remove(vma, &mapping->i_mmap);
- flush_dcache_mmap_unlock(mapping);
-}
-
-/*
- * Remove one vm structure and free it.
- */
-static void remove_vm_struct(struct vm_area_struct *vma)
-{
- struct file *file = vma->vm_file;
-
- if (file) {
- struct address_space *mapping = file->f_mapping;
- spin_lock(&mapping->i_mmap_lock);
- __remove_shared_vm_struct(vma, file, mapping);
- spin_unlock(&mapping->i_mmap_lock);
- }
- if (vma->vm_ops && vma->vm_ops->close)
- vma->vm_ops->close(vma);
- if (file)
- fput(file);
- anon_vma_unlink(vma);
- mpol_free(vma_policy(vma));
- kmem_cache_free(vm_area_cachep, vma);
-}
-
-/*
- * sys_brk() for the most part doesn't need the global kernel
- * lock, except when an application is doing something nasty
- * like trying to un-brk an area that has already been mapped
- * to a regular file. in this case, the unmapping will need
- * to invoke file system routines that need the global lock.
- */
-asmlinkage unsigned long sys_brk(unsigned long brk)
-{
- unsigned long rlim, retval;
- unsigned long newbrk, oldbrk;
- struct mm_struct *mm = current->mm;
-
- down_write(&mm->mmap_sem);
-
- if (brk < mm->end_code)
- goto out;
- newbrk = PAGE_ALIGN(brk);
- oldbrk = PAGE_ALIGN(mm->brk);
- if (oldbrk == newbrk)
- goto set_brk;
-
- /* Always allow shrinking brk. */
- if (brk <= mm->brk) {
- if (!do_munmap(mm, newbrk, oldbrk-newbrk))
- goto set_brk;
- goto out;
- }
-
- /* Check against rlimit.. */
- rlim = current->rlim[RLIMIT_DATA].rlim_cur;
- if (rlim < RLIM_INFINITY && brk - mm->start_data > rlim)
- goto out;
-
- /* Check against existing mmap mappings. */
- if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE))
- goto out;
-
- /* Ok, looks good - let it rip. */
- if (do_brk(oldbrk, newbrk-oldbrk) != oldbrk)
- goto out;
-set_brk:
- mm->brk = brk;
-out:
- retval = mm->brk;
- up_write(&mm->mmap_sem);
- return retval;
-}
-
-#ifdef DEBUG_MM_RB
-static int browse_rb(struct rb_root *root)
-{
- int i = 0, j;
- struct rb_node *nd, *pn = NULL;
- unsigned long prev = 0, pend = 0;
-
- for (nd = rb_first(root); nd; nd = rb_next(nd)) {
- struct vm_area_struct *vma;
- vma = rb_entry(nd, struct vm_area_struct, vm_rb);
- if (vma->vm_start < prev)
- printk("vm_start %lx prev %lx\n", vma->vm_start, prev), i = -1;
- if (vma->vm_start < pend)
- printk("vm_start %lx pend %lx\n", vma->vm_start, pend);
- if (vma->vm_start > vma->vm_end)
- printk("vm_end %lx < vm_start %lx\n", vma->vm_end, vma->vm_start);
- i++;
- pn = nd;
- }
- j = 0;
- for (nd = pn; nd; nd = rb_prev(nd)) {
- j++;
- }
- if (i != j)
- printk("backwards %d, forwards %d\n", j, i), i = 0;
- return i;
-}
-
-void validate_mm(struct mm_struct *mm)
-{
- int bug = 0;
- int i = 0;
- struct vm_area_struct *tmp = mm->mmap;
- while (tmp) {
- tmp = tmp->vm_next;
- i++;
- }
- if (i != mm->map_count)
- printk("map_count %d vm_next %d\n", mm->map_count, i), bug = 1;
- i = browse_rb(&mm->mm_rb);
- if (i != mm->map_count)
- printk("map_count %d rb %d\n", mm->map_count, i), bug = 1;
- if (bug)
- BUG();
-}
-#else
-#define validate_mm(mm) do { } while (0)
-#endif
-
-static struct vm_area_struct *
-find_vma_prepare(struct mm_struct *mm, unsigned long addr,
- struct vm_area_struct **pprev, struct rb_node ***rb_link,
- struct rb_node ** rb_parent)
-{
- struct vm_area_struct * vma;
- struct rb_node ** __rb_link, * __rb_parent, * rb_prev;
-
- __rb_link = &mm->mm_rb.rb_node;
- rb_prev = __rb_parent = NULL;
- vma = NULL;
-
- while (*__rb_link) {
- struct vm_area_struct *vma_tmp;
-
- __rb_parent = *__rb_link;
- vma_tmp = rb_entry(__rb_parent, struct vm_area_struct, vm_rb);
-
- if (vma_tmp->vm_end > addr) {
- vma = vma_tmp;
- if (vma_tmp->vm_start <= addr)
- return vma;
- __rb_link = &__rb_parent->rb_left;
- } else {
- rb_prev = __rb_parent;
- __rb_link = &__rb_parent->rb_right;
- }
- }
-
- *pprev = NULL;
- if (rb_prev)
- *pprev = rb_entry(rb_prev, struct vm_area_struct, vm_rb);
- *rb_link = __rb_link;
- *rb_parent = __rb_parent;
- return vma;
-}
-
-static inline void
-__vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma,
- struct vm_area_struct *prev, struct rb_node *rb_parent)
-{
- if (prev) {
- vma->vm_next = prev->vm_next;
- prev->vm_next = vma;
- } else {
- mm->mmap = vma;
- if (rb_parent)
- vma->vm_next = rb_entry(rb_parent,
- struct vm_area_struct, vm_rb);
- else
- vma->vm_next = NULL;
- }
-}
-
-void __vma_link_rb(struct mm_struct *mm, struct vm_area_struct *vma,
- struct rb_node **rb_link, struct rb_node *rb_parent)
-{
- rb_link_node(&vma->vm_rb, rb_parent, rb_link);
- rb_insert_color(&vma->vm_rb, &mm->mm_rb);
-}
-
-static inline void __vma_link_file(struct vm_area_struct *vma)
-{
- struct file * file;
-
- file = vma->vm_file;
- if (file) {
- struct address_space *mapping = file->f_mapping;
-
- if (vma->vm_flags & VM_DENYWRITE)
- atomic_dec(&file->f_dentry->d_inode->i_writecount);
- if (vma->vm_flags & VM_SHARED)
- mapping->i_mmap_writable++;
-
- flush_dcache_mmap_lock(mapping);
- if (unlikely(vma->vm_flags & VM_NONLINEAR))
- list_add_tail(&vma->shared.vm_set.list,
- &mapping->i_mmap_nonlinear);
- else
- vma_prio_tree_insert(vma, &mapping->i_mmap);
- flush_dcache_mmap_unlock(mapping);
- }
-}
-
-static void
-__vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
- struct vm_area_struct *prev, struct rb_node **rb_link,
- struct rb_node *rb_parent)
-{
- __vma_link_list(mm, vma, prev, rb_parent);
- __vma_link_rb(mm, vma, rb_link, rb_parent);
- __anon_vma_link(vma);
-}
-
-static void vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
- struct vm_area_struct *prev, struct rb_node **rb_link,
- struct rb_node *rb_parent)
-{
- struct address_space *mapping = NULL;
-
- if (vma->vm_file)
- mapping = vma->vm_file->f_mapping;
-
- if (mapping)
- spin_lock(&mapping->i_mmap_lock);
- anon_vma_lock(vma);
-
- __vma_link(mm, vma, prev, rb_link, rb_parent);
- __vma_link_file(vma);
-
- anon_vma_unlock(vma);
- if (mapping)
- spin_unlock(&mapping->i_mmap_lock);
-
- mark_mm_hugetlb(mm, vma);
- mm->map_count++;
- validate_mm(mm);
-}
-
-/*
- * Helper for vma_adjust in the split_vma insert case:
- * insert vm structure into list and rbtree and anon_vma,
- * but it has already been inserted into prio_tree earlier.
- */
-static void
-__insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
-{
- struct vm_area_struct * __vma, * prev;
- struct rb_node ** rb_link, * rb_parent;
-
- __vma = find_vma_prepare(mm, vma->vm_start,&prev, &rb_link, &rb_parent);
- if (__vma && __vma->vm_start < vma->vm_end)
- BUG();
- __vma_link(mm, vma, prev, rb_link, rb_parent);
- mm->map_count++;
-}
-
-static inline void
-__vma_unlink(struct mm_struct *mm, struct vm_area_struct *vma,
- struct vm_area_struct *prev)
-{
- prev->vm_next = vma->vm_next;
- rb_erase(&vma->vm_rb, &mm->mm_rb);
- if (mm->mmap_cache == vma)
- mm->mmap_cache = prev;
-}
-
-/*
- * We cannot adjust vm_start, vm_end, vm_pgoff fields of a vma that
- * is already present in an i_mmap tree without adjusting the tree.
- * The following helper function should be used when such adjustments
- * are necessary. The "insert" vma (if any) is to be inserted
- * before we drop the necessary locks.
- */
-void vma_adjust(struct vm_area_struct *vma, unsigned long start,
- unsigned long end, pgoff_t pgoff, struct vm_area_struct *insert)
-{
- struct mm_struct *mm = vma->vm_mm;
- struct vm_area_struct *next = vma->vm_next;
- struct address_space *mapping = NULL;
- struct prio_tree_root *root = NULL;
- struct file *file = vma->vm_file;
- struct anon_vma *anon_vma = NULL;
- long adjust_next = 0;
- int remove_next = 0;
-
- if (next && !insert) {
- if (end >= next->vm_end) {
- /*
- * vma expands, overlapping all the next, and
- * perhaps the one after too (mprotect case 6).
- */
-again: remove_next = 1 + (end > next->vm_end);
- end = next->vm_end;
- anon_vma = next->anon_vma;
- } else if (end > next->vm_start) {
- /*
- * vma expands, overlapping part of the next:
- * mprotect case 5 shifting the boundary up.
- */
- adjust_next = (end - next->vm_start) >> PAGE_SHIFT;
- anon_vma = next->anon_vma;
- } else if (end < vma->vm_end) {
- /*
- * vma shrinks, and !insert tells it's not
- * split_vma inserting another: so it must be
- * mprotect case 4 shifting the boundary down.
- */
- adjust_next = - ((vma->vm_end - end) >> PAGE_SHIFT);
- anon_vma = next->anon_vma;
- }
- }
-
- if (file) {
- mapping = file->f_mapping;
- if (!(vma->vm_flags & VM_NONLINEAR))
- root = &mapping->i_mmap;
- spin_lock(&mapping->i_mmap_lock);
- if (insert) {
- /*
- * Put into prio_tree now, so instantiated pages
- * are visible to arm/parisc __flush_dcache_page
- * throughout; but we cannot insert into address
- * space until vma start or end is updated.
- */
- __vma_link_file(insert);
- }
- }
-
- /*
- * When changing only vma->vm_end, we don't really need
- * anon_vma lock: but is that case worth optimizing out?
- */
- if (vma->anon_vma)
- anon_vma = vma->anon_vma;
- if (anon_vma)
- spin_lock(&anon_vma->lock);
-
- if (root) {
- flush_dcache_mmap_lock(mapping);
- vma_prio_tree_remove(vma, root);
- if (adjust_next)
- vma_prio_tree_remove(next, root);
- }
-
- vma->vm_start = start;
- vma->vm_end = end;
- vma->vm_pgoff = pgoff;
- if (adjust_next) {
- next->vm_start += adjust_next << PAGE_SHIFT;
- next->vm_pgoff += adjust_next;
- }
-
- if (root) {
- if (adjust_next) {
- vma_prio_tree_init(next);
- vma_prio_tree_insert(next, root);
- }
- vma_prio_tree_init(vma);
- vma_prio_tree_insert(vma, root);
- flush_dcache_mmap_unlock(mapping);
- }
-
- if (remove_next) {
- /*
- * vma_merge has merged next into vma, and needs
- * us to remove next before dropping the locks.
- */
- __vma_unlink(mm, next, vma);
- if (file)
- __remove_shared_vm_struct(next, file, mapping);
- if (next->anon_vma)
- __anon_vma_merge(vma, next);
- } else if (insert) {
- /*
- * split_vma has split insert from vma, and needs
- * us to insert it before dropping the locks
- * (it may either follow vma or precede it).
- */
- __insert_vm_struct(mm, insert);
- }
-
- if (anon_vma)
- spin_unlock(&anon_vma->lock);
- if (mapping)
- spin_unlock(&mapping->i_mmap_lock);
-
- if (remove_next) {
- if (file)
- fput(file);
- mm->map_count--;
- mpol_free(vma_policy(next));
- kmem_cache_free(vm_area_cachep, next);
- /*
- * In mprotect's case 6 (see comments on vma_merge),
- * we must remove another next too. It would clutter
- * up the code too much to do both in one go.
- */
- if (remove_next == 2) {
- next = vma->vm_next;
- goto again;
- }
- }
-
- validate_mm(mm);
-}
-
-/*
- * If the vma has a ->close operation then the driver probably needs to release
- * per-vma resources, so we don't attempt to merge those.
- */
-#define VM_SPECIAL (VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_RESERVED)
-
-static inline int is_mergeable_vma(struct vm_area_struct *vma,
- struct file *file, unsigned long vm_flags)
-{
- if (vma->vm_flags != vm_flags)
- return 0;
- if (vma->vm_file != file)
- return 0;
- if (vma->vm_ops && vma->vm_ops->close)
- return 0;
- return 1;
-}
-
-static inline int is_mergeable_anon_vma(struct anon_vma *anon_vma1,
- struct anon_vma *anon_vma2)
-{
- return !anon_vma1 || !anon_vma2 || (anon_vma1 == anon_vma2);
-}
-
-/*
- * Return true if we can merge this (vm_flags,anon_vma,file,vm_pgoff)
- * in front of (at a lower virtual address and file offset than) the vma.
- *
- * We cannot merge two vmas if they have differently assigned (non-NULL)
- * anon_vmas, nor if same anon_vma is assigned but offsets incompatible.
- *
- * We don't check here for the merged mmap wrapping around the end of pagecache
- * indices (16TB on ia32) because do_mmap_pgoff() does not permit mmap's which
- * wrap, nor mmaps which cover the final page at index -1UL.
- */
-static int
-can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
- struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
-{
- if (is_mergeable_vma(vma, file, vm_flags) &&
- is_mergeable_anon_vma(anon_vma, vma->anon_vma)) {
- if (vma->vm_pgoff == vm_pgoff)
- return 1;
- }
- return 0;
-}
-
-/*
- * Return true if we can merge this (vm_flags,anon_vma,file,vm_pgoff)
- * beyond (at a higher virtual address and file offset than) the vma.
- *
- * We cannot merge two vmas if they have differently assigned (non-NULL)
- * anon_vmas, nor if same anon_vma is assigned but offsets incompatible.
- */
-static int
-can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
- struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
-{
- if (is_mergeable_vma(vma, file, vm_flags) &&
- is_mergeable_anon_vma(anon_vma, vma->anon_vma)) {
- pgoff_t vm_pglen;
- vm_pglen = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
- if (vma->vm_pgoff + vm_pglen == vm_pgoff)
- return 1;
- }
- return 0;
-}
-
-/*
- * Given a mapping request (addr,end,vm_flags,file,pgoff), figure out
- * whether that can be merged with its predecessor or its successor.
- * Or both (it neatly fills a hole).
- *
- * In most cases - when called for mmap, brk or mremap - [addr,end) is
- * certain not to be mapped by the time vma_merge is called; but when
- * called for mprotect, it is certain to be already mapped (either at
- * an offset within prev, or at the start of next), and the flags of
- * this area are about to be changed to vm_flags - and the no-change
- * case has already been eliminated.
- *
- * The following mprotect cases have to be considered, where AAAA is
- * the area passed down from mprotect_fixup, never extending beyond one
- * vma, PPPPPP is the prev vma specified, and NNNNNN the next vma after:
- *
- * AAAA AAAA AAAA AAAA
- * PPPPPPNNNNNN PPPPPPNNNNNN PPPPPPNNNNNN PPPPNNNNXXXX
- * cannot merge might become might become might become
- * PPNNNNNNNNNN PPPPPPPPPPNN PPPPPPPPPPPP 6 or
- * mmap, brk or case 4 below case 5 below PPPPPPPPXXXX 7 or
- * mremap move: PPPPNNNNNNNN 8
- * AAAA
- * PPPP NNNN PPPPPPPPPPPP PPPPPPPPNNNN PPPPNNNNNNNN
- * might become case 1 below case 2 below case 3 below
- *
- * Odd one out? Case 8, because it extends NNNN but needs flags of XXXX:
- * mprotect_fixup updates vm_flags & vm_page_prot on successful return.
- */
-struct vm_area_struct *vma_merge(struct mm_struct *mm,
- struct vm_area_struct *prev, unsigned long addr,
- unsigned long end, unsigned long vm_flags,
- struct anon_vma *anon_vma, struct file *file,
- pgoff_t pgoff, struct mempolicy *policy)
-{
- pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
- struct vm_area_struct *area, *next;
-
- /*
- * We later require that vma->vm_flags == vm_flags,
- * so this tests vma->vm_flags & VM_SPECIAL, too.
- */
- if (vm_flags & VM_SPECIAL)
- return NULL;
-
- if (prev)
- next = prev->vm_next;
- else
- next = mm->mmap;
- area = next;
- if (next && next->vm_end == end) /* cases 6, 7, 8 */
- next = next->vm_next;
-
- /*
- * Can it merge with the predecessor?
- */
- if (prev && prev->vm_end == addr &&
- mpol_equal(vma_policy(prev), policy) &&
- can_vma_merge_after(prev, vm_flags,
- anon_vma, file, pgoff)) {
- /*
- * OK, it can. Can we now merge in the successor as well?
- */
- if (next && end == next->vm_start &&
- mpol_equal(policy, vma_policy(next)) &&
- can_vma_merge_before(next, vm_flags,
- anon_vma, file, pgoff+pglen) &&
- is_mergeable_anon_vma(prev->anon_vma,
- next->anon_vma)) {
- /* cases 1, 6 */
- vma_adjust(prev, prev->vm_start,
- next->vm_end, prev->vm_pgoff, NULL);
- } else /* cases 2, 5, 7 */
- vma_adjust(prev, prev->vm_start,
- end, prev->vm_pgoff, NULL);
- return prev;
- }
-
- /*
- * Can this new request be merged in front of next?
- */
- if (next && end == next->vm_start &&
- mpol_equal(policy, vma_policy(next)) &&
- can_vma_merge_before(next, vm_flags,
- anon_vma, file, pgoff+pglen)) {
- if (prev && addr < prev->vm_end) /* case 4 */
- vma_adjust(prev, prev->vm_start,
- addr, prev->vm_pgoff, NULL);
- else /* cases 3, 8 */
- vma_adjust(area, addr, next->vm_end,
- next->vm_pgoff - pglen, NULL);
- return area;
- }
-
- return NULL;
-}
-
-/*
- * find_mergeable_anon_vma is used by anon_vma_prepare, to check
- * neighbouring vmas for a suitable anon_vma, before it goes off
- * to allocate a new anon_vma. It checks because a repetitive
- * sequence of mprotects and faults may otherwise lead to distinct
- * anon_vmas being allocated, preventing vma merge in subsequent
- * mprotect.
- */
-struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *vma)
-{
- struct vm_area_struct *near;
- unsigned long vm_flags;
-
- near = vma->vm_next;
- if (!near)
- goto try_prev;
-
- /*
- * Since only mprotect tries to remerge vmas, match flags
- * which might be mprotected into each other later on.
- * Neither mlock nor madvise tries to remerge at present,
- * so leave their flags as obstructing a merge.
- */
- vm_flags = vma->vm_flags & ~(VM_READ|VM_WRITE|VM_EXEC);
- vm_flags |= near->vm_flags & (VM_READ|VM_WRITE|VM_EXEC);
-
- if (near->anon_vma && vma->vm_end == near->vm_start &&
- mpol_equal(vma_policy(vma), vma_policy(near)) &&
- can_vma_merge_before(near, vm_flags,
- NULL, vma->vm_file, vma->vm_pgoff +
- ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT)))
- return near->anon_vma;
-try_prev:
- /*
- * It is potentially slow to have to call find_vma_prev here.
- * But it's only on the first write fault on the vma, not
- * every time, and we could devise a way to avoid it later
- * (e.g. stash info in next's anon_vma_node when assigning
- * an anon_vma, or when trying vma_merge). Another time.
- */
- if (find_vma_prev(vma->vm_mm, vma->vm_start, &near) != vma)
- BUG();
- if (!near)
- goto none;
-
- vm_flags = vma->vm_flags & ~(VM_READ|VM_WRITE|VM_EXEC);
- vm_flags |= near->vm_flags & (VM_READ|VM_WRITE|VM_EXEC);
-
- if (near->anon_vma && near->vm_end == vma->vm_start &&
- mpol_equal(vma_policy(near), vma_policy(vma)) &&
- can_vma_merge_after(near, vm_flags,
- NULL, vma->vm_file, vma->vm_pgoff))
- return near->anon_vma;
-none:
- /*
- * There's no absolute need to look only at touching neighbours:
- * we could search further afield for "compatible" anon_vmas.
- * But it would probably just be a waste of time searching,
- * or lead to too many vmas hanging off the same anon_vma.
- * We're trying to allow mprotect remerging later on,
- * not trying to minimize memory used for anon_vmas.
- */
- return NULL;
-}
-
-/*
- * The caller must hold down_write(current->mm->mmap_sem).
- */
-
-unsigned long do_mmap_pgoff(struct file * file, unsigned long addr,
- unsigned long len, unsigned long prot,
- unsigned long flags, unsigned long pgoff)
-{
- struct mm_struct * mm = current->mm;
- struct vm_area_struct * vma, * prev;
- struct inode *inode;
- unsigned int vm_flags;
- int correct_wcount = 0;
- int error;
- struct rb_node ** rb_link, * rb_parent;
- int accountable = 1;
- unsigned long charged = 0;
-
- if (file) {
- if (is_file_hugepages(file))
- accountable = 0;
-
- if (!file->f_op || !file->f_op->mmap)
- return -ENODEV;
-
- if ((prot & PROT_EXEC) &&
- (file->f_vfsmnt->mnt_flags & MNT_NOEXEC))
- return -EPERM;
- }
-
- if (!len)
- return addr;
-
- /* Careful about overflows.. */
- len = PAGE_ALIGN(len);
- if (!len || len > TASK_SIZE)
- return -EINVAL;
-
- /* offset overflow? */
- if ((pgoff + (len >> PAGE_SHIFT)) < pgoff)
- return -EINVAL;
-
- /* Too many mappings? */
- if (mm->map_count > sysctl_max_map_count)
- return -ENOMEM;
-
- /* Obtain the address to map to. we verify (or select) it and ensure
- * that it represents a valid section of the address space.
- */
- addr = get_unmapped_area(file, addr, len, pgoff, flags);
- if (addr & ~PAGE_MASK)
- return addr;
-
- /* Do simple checking here so the lower-level routines won't have
- * to. we assume access permissions have been handled by the open
- * of the memory object, so we don't do any here.
- */
- vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
- mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
-
- if (flags & MAP_LOCKED) {
- if (!capable(CAP_IPC_LOCK))
- return -EPERM;
- vm_flags |= VM_LOCKED;
- }
- /* mlock MCL_FUTURE? */
- if (vm_flags & VM_LOCKED) {
- unsigned long locked = mm->locked_vm << PAGE_SHIFT;
- locked += len;
- if (locked > current->rlim[RLIMIT_MEMLOCK].rlim_cur)
- return -EAGAIN;
- }
-
- inode = file ? file->f_dentry->d_inode : NULL;
-
- if (file) {
- switch (flags & MAP_TYPE) {
- case MAP_SHARED:
- if ((prot&PROT_WRITE) && !(file->f_mode&FMODE_WRITE))
- return -EACCES;
-
- /*
- * Make sure we don't allow writing to an append-only
- * file..
- */
- if (IS_APPEND(inode) && (file->f_mode & FMODE_WRITE))
- return -EACCES;
-
- /*
- * Make sure there are no mandatory locks on the file.
- */
- if (locks_verify_locked(inode))
- return -EAGAIN;
-
- vm_flags |= VM_SHARED | VM_MAYSHARE;
- if (!(file->f_mode & FMODE_WRITE))
- vm_flags &= ~(VM_MAYWRITE | VM_SHARED);
-
- /* fall through */
- case MAP_PRIVATE:
- if (!(file->f_mode & FMODE_READ))
- return -EACCES;
- break;
-
- default:
- return -EINVAL;
- }
- } else {
- switch (flags & MAP_TYPE) {
- case MAP_SHARED:
- vm_flags |= VM_SHARED | VM_MAYSHARE;
- break;
- case MAP_PRIVATE:
- /*
- * Set pgoff according to addr for anon_vma.
- */
- pgoff = addr >> PAGE_SHIFT;
- break;
- default:
- return -EINVAL;
- }
- }
-
- error = security_file_mmap(file, prot, flags);
- if (error)
- return error;
-
- /* Clear old maps */
- error = -ENOMEM;
-munmap_back:
- vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
- if (vma && vma->vm_start < addr + len) {
- if (do_munmap(mm, addr, len))
- return -ENOMEM;
- goto munmap_back;
- }
-
- /* Check against address space limit. */
- if ((mm->total_vm << PAGE_SHIFT) + len
- > current->rlim[RLIMIT_AS].rlim_cur)
- return -ENOMEM;
-
- if (accountable && (!(flags & MAP_NORESERVE) ||
- sysctl_overcommit_memory > 1)) {
- if (vm_flags & VM_SHARED) {
- /* Check memory availability in shmem_file_setup? */
- vm_flags |= VM_ACCOUNT;
- } else if (vm_flags & VM_WRITE) {
- /*
- * Private writable mapping: check memory availability
- */
- charged = len >> PAGE_SHIFT;
- if (security_vm_enough_memory(charged))
- return -ENOMEM;
- vm_flags |= VM_ACCOUNT;
- }
- }
-
- /*
- * Can we just expand an old private anonymous mapping?
- * The VM_SHARED test is necessary because shmem_zero_setup
- * will create the file object for a shared anonymous map below.
- */
- if (!file && !(vm_flags & VM_SHARED) &&
- vma_merge(mm, prev, addr, addr + len, vm_flags,
- NULL, NULL, pgoff, NULL))
- goto out;
-
- /*
- * Determine the object being mapped and call the appropriate
- * specific mapper. the address has already been validated, but
- * not unmapped, but the maps are removed from the list.
- */
- vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
- if (!vma) {
- error = -ENOMEM;
- goto unacct_error;
- }
- memset(vma, 0, sizeof(*vma));
-
- vma->vm_mm = mm;
- vma->vm_start = addr;
- vma->vm_end = addr + len;
- vma->vm_flags = vm_flags;
- vma->vm_page_prot = protection_map[vm_flags & 0x0f];
- vma->vm_pgoff = pgoff;
-
- if (file) {
- error = -EINVAL;
- if (vm_flags & (VM_GROWSDOWN|VM_GROWSUP))
- goto free_vma;
- if (vm_flags & VM_DENYWRITE) {
- error = deny_write_access(file);
- if (error)
- goto free_vma;
- correct_wcount = 1;
- }
- vma->vm_file = file;
- get_file(file);
- error = file->f_op->mmap(file, vma);
- if (error)
- goto unmap_and_free_vma;
- } else if (vm_flags & VM_SHARED) {
- error = shmem_zero_setup(vma);
- if (error)
- goto free_vma;
- }
-
- /* We set VM_ACCOUNT in a shared mapping's vm_flags, to inform
- * shmem_zero_setup (perhaps called through /dev/zero's ->mmap)
- * that memory reservation must be checked; but that reservation
- * belongs to shared memory object, not to vma: so now clear it.
- */
- if ((vm_flags & (VM_SHARED|VM_ACCOUNT)) == (VM_SHARED|VM_ACCOUNT))
- vma->vm_flags &= ~VM_ACCOUNT;
-
- /* Can addr have changed??
- *
- * Answer: Yes, several device drivers can do it in their
- * f_op->mmap method. -DaveM
- */
- addr = vma->vm_start;
-
- if (!file || !vma_merge(mm, prev, addr, vma->vm_end,
- vma->vm_flags, NULL, file, pgoff, vma_policy(vma))) {
- vma_link(mm, vma, prev, rb_link, rb_parent);
- if (correct_wcount)
- atomic_inc(&inode->i_writecount);
- } else {
- if (file) {
- if (correct_wcount)
- atomic_inc(&inode->i_writecount);
- fput(file);
- }
- mpol_free(vma_policy(vma));
- kmem_cache_free(vm_area_cachep, vma);
- }
-out:
- mm->total_vm += len >> PAGE_SHIFT;
- if (vm_flags & VM_LOCKED) {
- mm->locked_vm += len >> PAGE_SHIFT;
- make_pages_present(addr, addr + len);
- }
- if (flags & MAP_POPULATE) {
- up_write(&mm->mmap_sem);
- sys_remap_file_pages(addr, len, 0,
- pgoff, flags & MAP_NONBLOCK);
- down_write(&mm->mmap_sem);
- }
- return addr;
-
-unmap_and_free_vma:
- if (correct_wcount)
- atomic_inc(&inode->i_writecount);
- vma->vm_file = NULL;
- fput(file);
-
- /* Undo any partial mapping done by a device driver. */
- zap_page_range(vma, vma->vm_start, vma->vm_end - vma->vm_start, NULL);
-free_vma:
- kmem_cache_free(vm_area_cachep, vma);
-unacct_error:
- if (charged)
- vm_unacct_memory(charged);
- return error;
-}
-
-EXPORT_SYMBOL(do_mmap_pgoff);
-
-/* Get an address range which is currently unmapped.
- * For shmat() with addr=0.
- *
- * Ugly calling convention alert:
- * Return value with the low bits set means error value,
- * ie
- * if (ret & ~PAGE_MASK)
- * error = ret;
- *
- * This function "knows" that -ENOMEM has the bits set.
- */
-#ifndef HAVE_ARCH_UNMAPPED_AREA
-static inline unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
- unsigned long len, unsigned long pgoff, unsigned long flags)
-{
- struct mm_struct *mm = current->mm;
- struct vm_area_struct *vma;
- unsigned long start_addr;
-
- if (len > TASK_SIZE)
- return -ENOMEM;
-
- if (addr) {
- addr = PAGE_ALIGN(addr);
- vma = find_vma(mm, addr);
- if (TASK_SIZE - len >= addr &&
- (!vma || addr + len <= vma->vm_start))
- return addr;
- }
- start_addr = addr = mm->free_area_cache;
-
-full_search:
- for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
- /* At this point: (!vma || addr < vma->vm_end). */
- if (TASK_SIZE - len < addr) {
- /*
- * Start a new search - just in case we missed
- * some holes.
- */
- if (start_addr != TASK_UNMAPPED_BASE) {
- start_addr = addr = TASK_UNMAPPED_BASE;
- goto full_search;
- }
- return -ENOMEM;
- }
- if (!vma || addr + len <= vma->vm_start) {
- /*
- * Remember the place where we stopped the search:
- */
- mm->free_area_cache = addr + len;
- return addr;
- }
- addr = vma->vm_end;
- }
-}
-#else
-extern unsigned long
-arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
- unsigned long, unsigned long);
-#endif
-
-unsigned long
-get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
- unsigned long pgoff, unsigned long flags)
-{
- if (flags & MAP_FIXED) {
- unsigned long ret;
-
- if (addr > TASK_SIZE - len)
- return -ENOMEM;
- if (addr & ~PAGE_MASK)
- return -EINVAL;
- if (file && is_file_hugepages(file)) {
- /*
- * Check if the given range is hugepage aligned, and
- * can be made suitable for hugepages.
- */
- ret = prepare_hugepage_range(addr, len);
- } else {
- /*
- * Ensure that a normal request is not falling in a
- * reserved hugepage range. For some archs like IA-64,
- * there is a separate region for hugepages.
- */
- ret = is_hugepage_only_range(addr, len);
- }
- if (ret)
- return -EINVAL;
- return addr;
- }
-
- if (file && file->f_op && file->f_op->get_unmapped_area)
- return file->f_op->get_unmapped_area(file, addr, len,
- pgoff, flags);
-
- return arch_get_unmapped_area(file, addr, len, pgoff, flags);
-}
-
-EXPORT_SYMBOL(get_unmapped_area);
-
-/* Look up the first VMA which satisfies addr < vm_end, NULL if none. */
-struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr)
-{
- struct vm_area_struct *vma = NULL;
-
- if (mm) {
- /* Check the cache first. */
- /* (Cache hit rate is typically around 35%.) */
- vma = mm->mmap_cache;
- if (!(vma && vma->vm_end > addr && vma->vm_start <= addr)) {
- struct rb_node * rb_node;
-
- rb_node = mm->mm_rb.rb_node;
- vma = NULL;
-
- while (rb_node) {
- struct vm_area_struct * vma_tmp;
-
- vma_tmp = rb_entry(rb_node,
- struct vm_area_struct, vm_rb);
-
- if (vma_tmp->vm_end > addr) {
- vma = vma_tmp;
- if (vma_tmp->vm_start <= addr)
- break;
- rb_node = rb_node->rb_left;
- } else
- rb_node = rb_node->rb_right;
- }
- if (vma)
- mm->mmap_cache = vma;
- }
- }
- return vma;
-}
-
-EXPORT_SYMBOL(find_vma);
-
-/* Same as find_vma, but also return a pointer to the previous VMA in *pprev. */
-struct vm_area_struct *
-find_vma_prev(struct mm_struct *mm, unsigned long addr,
- struct vm_area_struct **pprev)
-{
- struct vm_area_struct *vma = NULL, *prev = NULL;
- struct rb_node * rb_node;
- if (!mm)
- goto out;
-
- /* Guard against addr being lower than the first VMA */
- vma = mm->mmap;
-
- /* Go through the RB tree quickly. */
- rb_node = mm->mm_rb.rb_node;
-
- while (rb_node) {
- struct vm_area_struct *vma_tmp;
- vma_tmp = rb_entry(rb_node, struct vm_area_struct, vm_rb);
-
- if (addr < vma_tmp->vm_end) {
- rb_node = rb_node->rb_left;
- } else {
- prev = vma_tmp;
- if (!prev->vm_next || (addr < prev->vm_next->vm_end))
- break;
- rb_node = rb_node->rb_right;
- }
- }
-
-out:
- *pprev = prev;
- return prev ? prev->vm_next : vma;
-}
-
-#ifdef CONFIG_STACK_GROWSUP
-/*
- * vma is the first one with address > vma->vm_end. Have to extend vma.
- */
-int expand_stack(struct vm_area_struct * vma, unsigned long address)
-{
- unsigned long grow;
-
- if (!(vma->vm_flags & VM_GROWSUP))
- return -EFAULT;
-
- /*
- * We must make sure the anon_vma is allocated
- * so that the anon_vma locking is not a noop.
- */
- if (unlikely(anon_vma_prepare(vma)))
- return -ENOMEM;
- anon_vma_lock(vma);
-
- /*
- * vma->vm_start/vm_end cannot change under us because the caller
- * is required to hold the mmap_sem in read mode. We need the
- * anon_vma lock to serialize against concurrent expand_stacks.
- */
- address += 4 + PAGE_SIZE - 1;
- address &= PAGE_MASK;
- grow = (address - vma->vm_end) >> PAGE_SHIFT;
-
- /* Overcommit.. */
- if (security_vm_enough_memory(grow)) {
- anon_vma_unlock(vma);
- return -ENOMEM;
- }
-
- if (address - vma->vm_start > current->rlim[RLIMIT_STACK].rlim_cur ||
- ((vma->vm_mm->total_vm + grow) << PAGE_SHIFT) >
- current->rlim[RLIMIT_AS].rlim_cur) {
- anon_vma_unlock(vma);
- vm_unacct_memory(grow);
- return -ENOMEM;
- }
- vma->vm_end = address;
- vma->vm_mm->total_vm += grow;
- if (vma->vm_flags & VM_LOCKED)
- vma->vm_mm->locked_vm += grow;
- anon_vma_unlock(vma);
- return 0;
-}
-
-struct vm_area_struct *
-find_extend_vma(struct mm_struct *mm, unsigned long addr)
-{
- struct vm_area_struct *vma, *prev;
-
- addr &= PAGE_MASK;
- vma = find_vma_prev(mm, addr, &prev);
- if (vma && (vma->vm_start <= addr))
- return vma;
- if (!prev || expand_stack(prev, addr))
- return NULL;
- if (prev->vm_flags & VM_LOCKED) {
- make_pages_present(addr, prev->vm_end);
- }
- return prev;
-}
-#else
-/*
- * vma is the first one with address < vma->vm_start. Have to extend vma.
- */
-int expand_stack(struct vm_area_struct *vma, unsigned long address)
-{
- unsigned long grow;
-
- /*
- * We must make sure the anon_vma is allocated
- * so that the anon_vma locking is not a noop.
- */
- if (unlikely(anon_vma_prepare(vma)))
- return -ENOMEM;
- anon_vma_lock(vma);
-
- /*
- * vma->vm_start/vm_end cannot change under us because the caller
- * is required to hold the mmap_sem in read mode. We need the
- * anon_vma lock to serialize against concurrent expand_stacks.
- */
- address &= PAGE_MASK;
- grow = (vma->vm_start - address) >> PAGE_SHIFT;
-
- /* Overcommit.. */
- if (security_vm_enough_memory(grow)) {
- anon_vma_unlock(vma);
- return -ENOMEM;
- }
-
- if (vma->vm_end - address > current->rlim[RLIMIT_STACK].rlim_cur ||
- ((vma->vm_mm->total_vm + grow) << PAGE_SHIFT) >
- current->rlim[RLIMIT_AS].rlim_cur) {
- anon_vma_unlock(vma);
- vm_unacct_memory(grow);
- return -ENOMEM;
- }
- vma->vm_start = address;
- vma->vm_pgoff -= grow;
- vma->vm_mm->total_vm += grow;
- if (vma->vm_flags & VM_LOCKED)
- vma->vm_mm->locked_vm += grow;
- anon_vma_unlock(vma);
- return 0;
-}
-
-struct vm_area_struct *
-find_extend_vma(struct mm_struct * mm, unsigned long addr)
-{
- struct vm_area_struct * vma;
- unsigned long start;
-
- addr &= PAGE_MASK;
- vma = find_vma(mm,addr);
- if (!vma)
- return NULL;
- if (vma->vm_start <= addr)
- return vma;
- if (!(vma->vm_flags & VM_GROWSDOWN))
- return NULL;
- start = vma->vm_start;
- if (expand_stack(vma, addr))
- return NULL;
- if (vma->vm_flags & VM_LOCKED) {
- make_pages_present(addr, start);
- }
- return vma;
-}
-#endif
-
-/*
- * Try to free as many page directory entries as we can,
- * without having to work very hard at actually scanning
- * the page tables themselves.
- *
- * Right now we try to free page tables if we have a nice
- * PGDIR-aligned area that got free'd up. We could be more
- * granular if we want to, but this is fast and simple,
- * and covers the bad cases.
- *
- * "prev", if it exists, points to a vma before the one
- * we just free'd - but there's no telling how much before.
- */
-static void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *prev,
- unsigned long start, unsigned long end)
-{
- unsigned long first = start & PGDIR_MASK;
- unsigned long last = end + PGDIR_SIZE - 1;
- unsigned long start_index, end_index;
- struct mm_struct *mm = tlb->mm;
-
- if (!prev) {
- prev = mm->mmap;
- if (!prev)
- goto no_mmaps;
- if (prev->vm_end > start) {
- if (last > prev->vm_start)
- last = prev->vm_start;
- goto no_mmaps;
- }
- }
- for (;;) {
- struct vm_area_struct *next = prev->vm_next;
-
- if (next) {
- if (next->vm_start < start) {
- prev = next;
- continue;
- }
- if (last > next->vm_start)
- last = next->vm_start;
- }
- if (prev->vm_end > first)
- first = prev->vm_end + PGDIR_SIZE - 1;
- break;
- }
-no_mmaps:
- if (last < first) /* for arches with discontiguous pgd indices */
- return;
- /*
- * If the PGD bits are not consecutive in the virtual address, the
- * old method of shifting the VA >> by PGDIR_SHIFT doesn't work.
- */
- start_index = pgd_index(first);
- if (start_index < FIRST_USER_PGD_NR)
- start_index = FIRST_USER_PGD_NR;
- end_index = pgd_index(last);
- if (end_index > start_index) {
- clear_page_tables(tlb, start_index, end_index - start_index);
- flush_tlb_pgtables(mm, first & PGDIR_MASK, last & PGDIR_MASK);
- }
-}
-
-/* Normal function to fix up a mapping
- * This function is the default for when an area has no specific
- * function. This may be used as part of a more specific routine.
- *
- * By the time this function is called, the area struct has been
- * removed from the process mapping list.
- */
-static void unmap_vma(struct mm_struct *mm, struct vm_area_struct *area)
-{
- size_t len = area->vm_end - area->vm_start;
-
- area->vm_mm->total_vm -= len >> PAGE_SHIFT;
- if (area->vm_flags & VM_LOCKED)
- area->vm_mm->locked_vm -= len >> PAGE_SHIFT;
- /*
- * Is this a new hole at the lowest possible address?
- */
- if (area->vm_start >= TASK_UNMAPPED_BASE &&
- area->vm_start < area->vm_mm->free_area_cache)
- area->vm_mm->free_area_cache = area->vm_start;
-
- remove_vm_struct(area);
-}
-
-/*
- * Update the VMA and inode share lists.
- *
- * Ok - we have the memory areas we should free on the 'free' list,
- * so release them, and do the vma updates.
- */
-static void unmap_vma_list(struct mm_struct *mm,
- struct vm_area_struct *mpnt)
-{
- do {
- struct vm_area_struct *next = mpnt->vm_next;
- unmap_vma(mm, mpnt);
- mpnt = next;
- } while (mpnt != NULL);
- validate_mm(mm);
-}
-
-/*
- * Get rid of page table information in the indicated region.
- *
- * Called with the page table lock held.
- */
-static void unmap_region(struct mm_struct *mm,
- struct vm_area_struct *vma,
- struct vm_area_struct *prev,
- unsigned long start,
- unsigned long end)
-{
- struct mmu_gather *tlb;
- unsigned long nr_accounted = 0;
-
- lru_add_drain();
- tlb = tlb_gather_mmu(mm, 0);
- unmap_vmas(&tlb, mm, vma, start, end, &nr_accounted, NULL);
- vm_unacct_memory(nr_accounted);
-
- if (is_hugepage_only_range(start, end - start))
- hugetlb_free_pgtables(tlb, prev, start, end);
- else
- free_pgtables(tlb, prev, start, end);
- tlb_finish_mmu(tlb, start, end);
-}
-
-/*
- * Create a list of vma's touched by the unmap, removing them from the mm's
- * vma list as we go..
- */
-static void
-detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
- struct vm_area_struct *prev, unsigned long end)
-{
- struct vm_area_struct **insertion_point;
- struct vm_area_struct *tail_vma = NULL;
-
- insertion_point = (prev ? &prev->vm_next : &mm->mmap);
- do {
- rb_erase(&vma->vm_rb, &mm->mm_rb);
- mm->map_count--;
- tail_vma = vma;
- vma = vma->vm_next;
- } while (vma && vma->vm_start < end);
- *insertion_point = vma;
- tail_vma->vm_next = NULL;
- mm->mmap_cache = NULL; /* Kill the cache. */
-}
-
-/*
- * Split a vma into two pieces at address 'addr', a new vma is allocated
- * either for the first part or the the tail.
- */
-int split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
- unsigned long addr, int new_below)
-{
- struct mempolicy *pol;
- struct vm_area_struct *new;
-
- if (mm->map_count >= sysctl_max_map_count)
- return -ENOMEM;
-
- new = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
- if (!new)
- return -ENOMEM;
-
- /* most fields are the same, copy all, and then fixup */
- *new = *vma;
- vma_prio_tree_init(new);
-
- if (new_below)
- new->vm_end = addr;
- else {
- new->vm_start = addr;
- new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
- }
-
- pol = mpol_copy(vma_policy(vma));
- if (IS_ERR(pol)) {
- kmem_cache_free(vm_area_cachep, new);
- return PTR_ERR(pol);
- }
- vma_set_policy(new, pol);
-
- if (new->vm_file)
- get_file(new->vm_file);
-
- if (new->vm_ops && new->vm_ops->open)
- new->vm_ops->open(new);
-
- if (new_below)
- vma_adjust(vma, addr, vma->vm_end, vma->vm_pgoff +
- ((addr - new->vm_start) >> PAGE_SHIFT), new);
- else
- vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
-
- return 0;
-}
-
-/* Munmap is split into 2 main parts -- this part which finds
- * what needs doing, and the areas themselves, which do the
- * work. This now handles partial unmappings.
- * Jeremy Fitzhardinge <jeremy@goop.org>
- */
-int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
-{
- unsigned long end;
- struct vm_area_struct *mpnt, *prev, *last;
-
- if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
- return -EINVAL;
-
- if ((len = PAGE_ALIGN(len)) == 0)
- return -EINVAL;
-
- /* Find the first overlapping VMA */
- mpnt = find_vma_prev(mm, start, &prev);
- if (!mpnt)
- return 0;
- /* we have start < mpnt->vm_end */
-
- if (is_vm_hugetlb_page(mpnt)) {
- int ret = is_aligned_hugepage_range(start, len);
-
- if (ret)
- return ret;
- }
-
- /* if it doesn't overlap, we have nothing.. */
- end = start + len;
- if (mpnt->vm_start >= end)
- return 0;
-
- /* Something will probably happen, so notify. */
- if (mpnt->vm_file && (mpnt->vm_flags & VM_EXEC))
- profile_exec_unmap(mm);
-
- /*
- * If we need to split any vma, do it now to save pain later.
- *
- * Note: mremap's move_vma VM_ACCOUNT handling assumes a partially
- * unmapped vm_area_struct will remain in use: so lower split_vma
- * places tmp vma above, and higher split_vma places tmp vma below.
- */
- if (start > mpnt->vm_start) {
- if (split_vma(mm, mpnt, start, 0))
- return -ENOMEM;
- prev = mpnt;
- }
-
- /* Does it split the last one? */
- last = find_vma(mm, end);
- if (last && end > last->vm_start) {
- if (split_vma(mm, last, end, 1))
- return -ENOMEM;
- }
- mpnt = prev? prev->vm_next: mm->mmap;
-
- /*
- * Remove the vma's, and unmap the actual pages
- */
- detach_vmas_to_be_unmapped(mm, mpnt, prev, end);
- spin_lock(&mm->page_table_lock);
- unmap_region(mm, mpnt, prev, start, end);
- spin_unlock(&mm->page_table_lock);
-
- /* Fix up all other VM information */
- unmap_vma_list(mm, mpnt);
-
- return 0;
-}
-
-EXPORT_SYMBOL(do_munmap);
-
-asmlinkage long sys_munmap(unsigned long addr, size_t len)
-{
- int ret;
- struct mm_struct *mm = current->mm;
-
- down_write(&mm->mmap_sem);
- ret = do_munmap(mm, addr, len);
- up_write(&mm->mmap_sem);
- return ret;
-}
-
-/*
- * this is really a simplified "do_mmap". it only handles
- * anonymous maps. eventually we may be able to do some
- * brk-specific accounting here.
- */
-unsigned long do_brk(unsigned long addr, unsigned long len)
-{
- struct mm_struct * mm = current->mm;
- struct vm_area_struct * vma, * prev;
- unsigned long flags;
- struct rb_node ** rb_link, * rb_parent;
- pgoff_t pgoff = addr >> PAGE_SHIFT;
-
- len = PAGE_ALIGN(len);
- if (!len)
- return addr;
-
- if ((addr + len) > TASK_SIZE || (addr + len) < addr)
- return -EINVAL;
-
- /*
- * mlock MCL_FUTURE?
- */
- if (mm->def_flags & VM_LOCKED) {
- unsigned long locked = mm->locked_vm << PAGE_SHIFT;
- locked += len;
- if (locked > current->rlim[RLIMIT_MEMLOCK].rlim_cur)
- return -EAGAIN;
- }
-
- /*
- * Clear old maps. this also does some error checking for us
- */
- munmap_back:
- vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
- if (vma && vma->vm_start < addr + len) {
- if (do_munmap(mm, addr, len))
- return -ENOMEM;
- goto munmap_back;
- }
-
- /* Check against address space limits *after* clearing old maps... */
- if ((mm->total_vm << PAGE_SHIFT) + len
- > current->rlim[RLIMIT_AS].rlim_cur)
- return -ENOMEM;
-
- if (mm->map_count > sysctl_max_map_count)
- return -ENOMEM;
-
- if (security_vm_enough_memory(len >> PAGE_SHIFT))
- return -ENOMEM;
-
- flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
-
- /* Can we just expand an old private anonymous mapping? */
- if (vma_merge(mm, prev, addr, addr + len, flags,
- NULL, NULL, pgoff, NULL))
- goto out;
-
- /*
- * create a vma struct for an anonymous mapping
- */
- vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
- if (!vma) {
- vm_unacct_memory(len >> PAGE_SHIFT);
- return -ENOMEM;
- }
- memset(vma, 0, sizeof(*vma));
-
- vma->vm_mm = mm;
- vma->vm_start = addr;
- vma->vm_end = addr + len;
- vma->vm_pgoff = pgoff;
- vma->vm_flags = flags;
- vma->vm_page_prot = protection_map[flags & 0x0f];
- vma_link(mm, vma, prev, rb_link, rb_parent);
-out:
- mm->total_vm += len >> PAGE_SHIFT;
- if (flags & VM_LOCKED) {
- mm->locked_vm += len >> PAGE_SHIFT;
- make_pages_present(addr, addr + len);
- }
- return addr;
-}
-
-EXPORT_SYMBOL(do_brk);
-
-/* Release all mmaps. */
-void exit_mmap(struct mm_struct *mm)
-{
- struct mmu_gather *tlb;
- struct vm_area_struct *vma;
- unsigned long nr_accounted = 0;
-
- profile_exit_mmap(mm);
-
- lru_add_drain();
-
- spin_lock(&mm->page_table_lock);
-
- tlb = tlb_gather_mmu(mm, 1);
- flush_cache_mm(mm);
- /* Use ~0UL here to ensure all VMAs in the mm are unmapped */
- mm->map_count -= unmap_vmas(&tlb, mm, mm->mmap, 0,
- ~0UL, &nr_accounted, NULL);
- vm_unacct_memory(nr_accounted);
- BUG_ON(mm->map_count); /* This is just debugging */
- clear_page_tables(tlb, FIRST_USER_PGD_NR, USER_PTRS_PER_PGD);
- tlb_finish_mmu(tlb, 0, MM_VM_SIZE(mm));
-
- vma = mm->mmap;
- mm->mmap = mm->mmap_cache = NULL;
- mm->mm_rb = RB_ROOT;
- mm->rss = 0;
- mm->total_vm = 0;
- mm->locked_vm = 0;
-
- spin_unlock(&mm->page_table_lock);
-
- /*
- * Walk the list again, actually closing and freeing it
- * without holding any MM locks.
- */
- while (vma) {
- struct vm_area_struct *next = vma->vm_next;
- remove_vm_struct(vma);
- vma = next;
- }
-}
-
-/* Insert vm structure into process list sorted by address
- * and into the inode's i_mmap tree. If vm_file is non-NULL
- * then i_mmap_lock is taken here.
- */
-void insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
-{
- struct vm_area_struct * __vma, * prev;
- struct rb_node ** rb_link, * rb_parent;
-
- /*
- * The vm_pgoff of a purely anonymous vma should be irrelevant
- * until its first write fault, when page's anon_vma and index
- * are set. But now set the vm_pgoff it will almost certainly
- * end up with (unless mremap moves it elsewhere before that
- * first wfault), so /proc/pid/maps tells a consistent story.
- *
- * By setting it to reflect the virtual start address of the
- * vma, merges and splits can happen in a seamless way, just
- * using the existing file pgoff checks and manipulations.
- * Similarly in do_mmap_pgoff and in do_brk.
- */
- if (!vma->vm_file) {
- BUG_ON(vma->anon_vma);
- vma->vm_pgoff = vma->vm_start >> PAGE_SHIFT;
- }
- __vma = find_vma_prepare(mm,vma->vm_start,&prev,&rb_link,&rb_parent);
- if (__vma && __vma->vm_start < vma->vm_end)
- BUG();
- vma_link(mm, vma, prev, rb_link, rb_parent);
-}
-
-/*
- * Copy the vma structure to a new location in the same mm,
- * prior to moving page table entries, to effect an mremap move.
- */
-struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
- unsigned long addr, unsigned long len, pgoff_t pgoff)
-{
- struct vm_area_struct *vma = *vmap;
- unsigned long vma_start = vma->vm_start;
- struct mm_struct *mm = vma->vm_mm;
- struct vm_area_struct *new_vma, *prev;
- struct rb_node **rb_link, *rb_parent;
- struct mempolicy *pol;
-
- /*
- * If anonymous vma has not yet been faulted, update new pgoff
- * to match new location, to increase its chance of merging.
- */
- if (!vma->vm_file && !vma->anon_vma)
- pgoff = addr >> PAGE_SHIFT;
-
- find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
- new_vma = vma_merge(mm, prev, addr, addr + len, vma->vm_flags,
- vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma));
- if (new_vma) {
- /*
- * Source vma may have been merged into new_vma
- */
- if (vma_start >= new_vma->vm_start &&
- vma_start < new_vma->vm_end)
- *vmap = new_vma;
- } else {
- new_vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
- if (new_vma) {
- *new_vma = *vma;
- vma_prio_tree_init(new_vma);
- pol = mpol_copy(vma_policy(vma));
- if (IS_ERR(pol)) {
- kmem_cache_free(vm_area_cachep, new_vma);
- return NULL;
- }
- vma_set_policy(new_vma, pol);
- new_vma->vm_start = addr;
- new_vma->vm_end = addr + len;
- new_vma->vm_pgoff = pgoff;
- if (new_vma->vm_file)
- get_file(new_vma->vm_file);
- if (new_vma->vm_ops && new_vma->vm_ops->open)
- new_vma->vm_ops->open(new_vma);
- vma_link(mm, new_vma, prev, rb_link, rb_parent);
- }
- }
- return new_vma;
-}
+++ /dev/null
-/*
- * mm/mprotect.c
- *
- * (C) Copyright 1994 Linus Torvalds
- * (C) Copyright 2002 Christoph Hellwig
- *
- * Address space accounting code <alan@redhat.com>
- * (C) Copyright 2002 Red Hat Inc, All Rights Reserved
- */
-
-#include <linux/mm.h>
-#include <linux/hugetlb.h>
-#include <linux/slab.h>
-#include <linux/shm.h>
-#include <linux/mman.h>
-#include <linux/fs.h>
-#include <linux/highmem.h>
-#include <linux/security.h>
-#include <linux/mempolicy.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-
-static inline void
-change_pte_range(pmd_t *pmd, unsigned long address,
- unsigned long size, pgprot_t newprot)
-{
- pte_t * pte;
- unsigned long end;
-
- if (pmd_none(*pmd))
- return;
- if (pmd_bad(*pmd)) {
- pmd_ERROR(*pmd);
- pmd_clear(pmd);
- return;
- }
- pte = pte_offset_map(pmd, address);
- address &= ~PMD_MASK;
- end = address + size;
- if (end > PMD_SIZE)
- end = PMD_SIZE;
- do {
- if (pte_present(*pte)) {
- pte_t entry;
-
- /* Avoid an SMP race with hardware updated dirty/clean
- * bits by wiping the pte and then setting the new pte
- * into place.
- */
- entry = ptep_get_and_clear(pte);
- set_pte(pte, pte_modify(entry, newprot));
- }
- address += PAGE_SIZE;
- pte++;
- } while (address && (address < end));
- pte_unmap(pte - 1);
-}
-
-static inline void
-change_pmd_range(pgd_t *pgd, unsigned long address,
- unsigned long size, pgprot_t newprot)
-{
- pmd_t * pmd;
- unsigned long end;
-
- if (pgd_none(*pgd))
- return;
- if (pgd_bad(*pgd)) {
- pgd_ERROR(*pgd);
- pgd_clear(pgd);
- return;
- }
- pmd = pmd_offset(pgd, address);
- address &= ~PGDIR_MASK;
- end = address + size;
- if (end > PGDIR_SIZE)
- end = PGDIR_SIZE;
- do {
- change_pte_range(pmd, address, end - address, newprot);
- address = (address + PMD_SIZE) & PMD_MASK;
- pmd++;
- } while (address && (address < end));
-}
-
-static void
-change_protection(struct vm_area_struct *vma, unsigned long start,
- unsigned long end, pgprot_t newprot)
-{
- pgd_t *dir;
- unsigned long beg = start;
-
- dir = pgd_offset(current->mm, start);
- flush_cache_range(vma, beg, end);
- if (start >= end)
- BUG();
- spin_lock(¤t->mm->page_table_lock);
- do {
- change_pmd_range(dir, start, end - start, newprot);
- start = (start + PGDIR_SIZE) & PGDIR_MASK;
- dir++;
- } while (start && (start < end));
- flush_tlb_range(vma, beg, end);
- spin_unlock(¤t->mm->page_table_lock);
- return;
-}
-
-static int
-mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
- unsigned long start, unsigned long end, unsigned int newflags)
-{
- struct mm_struct * mm = vma->vm_mm;
- unsigned long charged = 0;
- pgprot_t newprot;
- pgoff_t pgoff;
- int error;
-
- if (newflags == vma->vm_flags) {
- *pprev = vma;
- return 0;
- }
-
- /*
- * If we make a private mapping writable we increase our commit;
- * but (without finer accounting) cannot reduce our commit if we
- * make it unwritable again.
- *
- * FIXME? We haven't defined a VM_NORESERVE flag, so mprotecting
- * a MAP_NORESERVE private mapping to writable will now reserve.
- */
- if (newflags & VM_WRITE) {
- if (!(vma->vm_flags & (VM_ACCOUNT|VM_WRITE|VM_SHARED|VM_HUGETLB))) {
- charged = (end - start) >> PAGE_SHIFT;
- if (security_vm_enough_memory(charged))
- return -ENOMEM;
- newflags |= VM_ACCOUNT;
- }
- }
-
- newprot = protection_map[newflags & 0xf];
-
- /*
- * First try to merge with previous and/or next vma.
- */
- pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
- *pprev = vma_merge(mm, *pprev, start, end, newflags,
- vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma));
- if (*pprev) {
- vma = *pprev;
- goto success;
- }
-
- if (start != vma->vm_start) {
- error = split_vma(mm, vma, start, 1);
- if (error)
- goto fail;
- }
- /*
- * Unless it returns an error, this function always sets *pprev to
- * the first vma for which vma->vm_end >= end.
- */
- *pprev = vma;
-
- if (end != vma->vm_end) {
- error = split_vma(mm, vma, end, 0);
- if (error)
- goto fail;
- }
-
-success:
- /*
- * vm_flags and vm_page_prot are protected by the mmap_sem
- * held in write mode.
- */
- vma->vm_flags = newflags;
- vma->vm_page_prot = newprot;
- change_protection(vma, start, end, newprot);
- return 0;
-
-fail:
- vm_unacct_memory(charged);
- return error;
-}
-
-asmlinkage long
-sys_mprotect(unsigned long start, size_t len, unsigned long prot)
-{
- unsigned long vm_flags, nstart, end, tmp;
- struct vm_area_struct *vma, *prev;
- int error = -EINVAL;
- const int grows = prot & (PROT_GROWSDOWN|PROT_GROWSUP);
- prot &= ~(PROT_GROWSDOWN|PROT_GROWSUP);
- if (grows == (PROT_GROWSDOWN|PROT_GROWSUP)) /* can't be both */
- return -EINVAL;
-
- if (start & ~PAGE_MASK)
- return -EINVAL;
- len = PAGE_ALIGN(len);
- end = start + len;
- if (end < start)
- return -ENOMEM;
- if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM))
- return -EINVAL;
- if (end == start)
- return 0;
-
- vm_flags = calc_vm_prot_bits(prot);
-
- down_write(¤t->mm->mmap_sem);
-
- vma = find_vma_prev(current->mm, start, &prev);
- error = -ENOMEM;
- if (!vma)
- goto out;
- if (unlikely(grows & PROT_GROWSDOWN)) {
- if (vma->vm_start >= end)
- goto out;
- start = vma->vm_start;
- error = -EINVAL;
- if (!(vma->vm_flags & VM_GROWSDOWN))
- goto out;
- }
- else {
- if (vma->vm_start > start)
- goto out;
- if (unlikely(grows & PROT_GROWSUP)) {
- end = vma->vm_end;
- error = -EINVAL;
- if (!(vma->vm_flags & VM_GROWSUP))
- goto out;
- }
- }
- if (start > vma->vm_start)
- prev = vma;
-
- for (nstart = start ; ; ) {
- unsigned int newflags;
-
- /* Here we know that vma->vm_start <= nstart < vma->vm_end. */
-
- if (is_vm_hugetlb_page(vma)) {
- error = -EACCES;
- goto out;
- }
-
- newflags = vm_flags | (vma->vm_flags & ~(VM_READ | VM_WRITE | VM_EXEC));
-
- if ((newflags & ~(newflags >> 4)) & 0xf) {
- error = -EACCES;
- goto out;
- }
-
- error = security_file_mprotect(vma, prot);
- if (error)
- goto out;
-
- tmp = vma->vm_end;
- if (tmp > end)
- tmp = end;
- error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
- if (error)
- goto out;
- nstart = tmp;
-
- if (nstart < prev->vm_end)
- nstart = prev->vm_end;
- if (nstart >= end)
- goto out;
-
- vma = prev->vm_next;
- if (!vma || vma->vm_start != nstart) {
- error = -ENOMEM;
- goto out;
- }
- }
-out:
- up_write(¤t->mm->mmap_sem);
- return error;
-}
+++ /dev/null
-/*
- * linux/mm/page_alloc.c
- *
- * Manages the free list, the system allocates free pages here.
- * Note that kmalloc() lives in slab.c
- *
- * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds
- * Swap reorganised 29.12.95, Stephen Tweedie
- * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
- * Reshaped it to be a zoned allocator, Ingo Molnar, Red Hat, 1999
- * Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999
- * Zone balancing, Kanoj Sarcar, SGI, Jan 2000
- * Per cpu hot/cold page lists, bulk allocation, Martin J. Bligh, Sept 2002
- * (lots of bits borrowed from Ingo Molnar & Andrew Morton)
- */
-
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/interrupt.h>
-#include <linux/pagemap.h>
-#include <linux/bootmem.h>
-#include <linux/compiler.h>
-#include <linux/module.h>
-#include <linux/suspend.h>
-#include <linux/pagevec.h>
-#include <linux/blkdev.h>
-#include <linux/slab.h>
-#include <linux/notifier.h>
-#include <linux/topology.h>
-#include <linux/sysctl.h>
-#include <linux/cpu.h>
-
-#include <asm/tlbflush.h>
-
-DECLARE_BITMAP(node_online_map, MAX_NUMNODES);
-struct pglist_data *pgdat_list;
-unsigned long totalram_pages;
-unsigned long totalhigh_pages;
-int nr_swap_pages;
-int numnodes = 1;
-int sysctl_lower_zone_protection = 0;
-
-EXPORT_SYMBOL(totalram_pages);
-EXPORT_SYMBOL(nr_swap_pages);
-
-/*
- * Used by page_zone() to look up the address of the struct zone whose
- * id is encoded in the upper bits of page->flags
- */
-struct zone *zone_table[1 << (ZONES_SHIFT + NODES_SHIFT)];
-EXPORT_SYMBOL(zone_table);
-
-static char *zone_names[MAX_NR_ZONES] = { "DMA", "Normal", "HighMem" };
-int min_free_kbytes = 1024;
-
-/*
- * Temporary debugging check for pages not lying within a given zone.
- */
-static int bad_range(struct zone *zone, struct page *page)
-{
- if (page_to_pfn(page) >= zone->zone_start_pfn + zone->spanned_pages)
- return 1;
- if (page_to_pfn(page) < zone->zone_start_pfn)
- return 1;
- if (zone != page_zone(page))
- return 1;
- return 0;
-}
-
-static void bad_page(const char *function, struct page *page)
-{
- printk(KERN_EMERG "Bad page state at %s (in process '%s', page %p)\n",
- function, current->comm, page);
- printk(KERN_EMERG "flags:0x%08lx mapping:%p mapcount:%d count:%d\n",
- (unsigned long)page->flags, page->mapping,
- (int)page->mapcount, page_count(page));
- printk(KERN_EMERG "Backtrace:\n");
- dump_stack();
- printk(KERN_EMERG "Trying to fix it up, but a reboot is needed\n");
- page->flags &= ~(1 << PG_private |
- 1 << PG_locked |
- 1 << PG_lru |
- 1 << PG_active |
- 1 << PG_dirty |
- 1 << PG_maplock |
- 1 << PG_anon |
- 1 << PG_swapcache |
- 1 << PG_writeback);
- set_page_count(page, 0);
- page->mapping = NULL;
- page->mapcount = 0;
-}
-
-#ifndef CONFIG_HUGETLB_PAGE
-#define prep_compound_page(page, order) do { } while (0)
-#define destroy_compound_page(page, order) do { } while (0)
-#else
-/*
- * Higher-order pages are called "compound pages". They are structured thusly:
- *
- * The first PAGE_SIZE page is called the "head page".
- *
- * The remaining PAGE_SIZE pages are called "tail pages".
- *
- * All pages have PG_compound set. All pages have their ->private pointing at
- * the head page (even the head page has this).
- *
- * The first tail page's ->mapping, if non-zero, holds the address of the
- * compound page's put_page() function.
- *
- * The order of the allocation is stored in the first tail page's ->index
- * This is only for debug at present. This usage means that zero-order pages
- * may not be compound.
- */
-static void prep_compound_page(struct page *page, unsigned long order)
-{
- int i;
- int nr_pages = 1 << order;
-
- page[1].mapping = 0;
- page[1].index = order;
- for (i = 0; i < nr_pages; i++) {
- struct page *p = page + i;
-
- SetPageCompound(p);
- p->private = (unsigned long)page;
- }
-}
-
-static void destroy_compound_page(struct page *page, unsigned long order)
-{
- int i;
- int nr_pages = 1 << order;
-
- if (!PageCompound(page))
- return;
-
- if (page[1].index != order)
- bad_page(__FUNCTION__, page);
-
- for (i = 0; i < nr_pages; i++) {
- struct page *p = page + i;
-
- if (!PageCompound(p))
- bad_page(__FUNCTION__, page);
- if (p->private != (unsigned long)page)
- bad_page(__FUNCTION__, page);
- ClearPageCompound(p);
- }
-}
-#endif /* CONFIG_HUGETLB_PAGE */
-
-/*
- * Freeing function for a buddy system allocator.
- *
- * The concept of a buddy system is to maintain direct-mapped table
- * (containing bit values) for memory blocks of various "orders".
- * The bottom level table contains the map for the smallest allocatable
- * units of memory (here, pages), and each level above it describes
- * pairs of units from the levels below, hence, "buddies".
- * At a high level, all that happens here is marking the table entry
- * at the bottom level available, and propagating the changes upward
- * as necessary, plus some accounting needed to play nicely with other
- * parts of the VM system.
- * At each level, we keep one bit for each pair of blocks, which
- * is set to 1 iff only one of the pair is allocated. So when we
- * are allocating or freeing one, we can derive the state of the
- * other. That is, if we allocate a small block, and both were
- * free, the remainder of the region must be split into blocks.
- * If a block is freed, and its buddy is also free, then this
- * triggers coalescing into a block of larger size.
- *
- * -- wli
- */
-
-static inline void __free_pages_bulk (struct page *page, struct page *base,
- struct zone *zone, struct free_area *area, unsigned long mask,
- unsigned int order)
-{
- unsigned long page_idx, index;
-
- if (order)
- destroy_compound_page(page, order);
- page_idx = page - base;
- if (page_idx & ~mask)
- BUG();
- index = page_idx >> (1 + order);
-
- zone->free_pages -= mask;
- while (mask + (1 << (MAX_ORDER-1))) {
- struct page *buddy1, *buddy2;
-
- BUG_ON(area >= zone->free_area + MAX_ORDER);
- if (!__test_and_change_bit(index, area->map))
- /*
- * the buddy page is still allocated.
- */
- break;
- /*
- * Move the buddy up one level.
- * This code is taking advantage of the identity:
- * -mask = 1+~mask
- */
- buddy1 = base + (page_idx ^ -mask);
- buddy2 = base + page_idx;
- BUG_ON(bad_range(zone, buddy1));
- BUG_ON(bad_range(zone, buddy2));
- list_del(&buddy1->lru);
- mask <<= 1;
- area++;
- index >>= 1;
- page_idx &= mask;
- }
- list_add(&(base + page_idx)->lru, &area->free_list);
-}
-
-static inline void free_pages_check(const char *function, struct page *page)
-{
- if ( page_mapped(page) ||
- page->mapping != NULL ||
- page_count(page) != 0 ||
- (page->flags & (
- 1 << PG_lru |
- 1 << PG_private |
- 1 << PG_locked |
- 1 << PG_active |
- 1 << PG_reclaim |
- 1 << PG_slab |
- 1 << PG_maplock |
- 1 << PG_anon |
- 1 << PG_swapcache |
- 1 << PG_writeback )))
- bad_page(function, page);
- if (PageDirty(page))
- ClearPageDirty(page);
-}
-
-/*
- * Frees a list of pages.
- * Assumes all pages on list are in same zone, and of same order.
- * count is the number of pages to free, or 0 for all on the list.
- *
- * If the zone was previously in an "all pages pinned" state then look to
- * see if this freeing clears that state.
- *
- * And clear the zone's pages_scanned counter, to hold off the "all pages are
- * pinned" detection logic.
- */
-static int
-free_pages_bulk(struct zone *zone, int count,
- struct list_head *list, unsigned int order)
-{
- unsigned long mask, flags;
- struct free_area *area;
- struct page *base, *page = NULL;
- int ret = 0;
-
- mask = (~0UL) << order;
- base = zone->zone_mem_map;
- area = zone->free_area + order;
- spin_lock_irqsave(&zone->lock, flags);
- zone->all_unreclaimable = 0;
- zone->pages_scanned = 0;
- while (!list_empty(list) && count--) {
- page = list_entry(list->prev, struct page, lru);
- /* have to delete it as __free_pages_bulk list manipulates */
- list_del(&page->lru);
- __free_pages_bulk(page, base, zone, area, mask, order);
- ret++;
- }
- spin_unlock_irqrestore(&zone->lock, flags);
- return ret;
-}
-
-void __free_pages_ok(struct page *page, unsigned int order)
-{
- LIST_HEAD(list);
- int i;
-
- mod_page_state(pgfree, 1 << order);
- for (i = 0 ; i < (1 << order) ; ++i)
- free_pages_check(__FUNCTION__, page + i);
- list_add(&page->lru, &list);
- kernel_map_pages(page, 1<<order, 0);
- free_pages_bulk(page_zone(page), 1, &list, order);
-}
-
-#define MARK_USED(index, order, area) \
- __change_bit((index) >> (1+(order)), (area)->map)
-
-static inline struct page *
-expand(struct zone *zone, struct page *page,
- unsigned long index, int low, int high, struct free_area *area)
-{
- unsigned long size = 1 << high;
-
- while (high > low) {
- BUG_ON(bad_range(zone, page));
- area--;
- high--;
- size >>= 1;
- list_add(&page->lru, &area->free_list);
- MARK_USED(index, high, area);
- index += size;
- page += size;
- }
- return page;
-}
-
-static inline void set_page_refs(struct page *page, int order)
-{
-#ifdef CONFIG_MMU
- set_page_count(page, 1);
-#else
- int i;
-
- /*
- * We need to reference all the pages for this order, otherwise if
- * anyone accesses one of the pages with (get/put) it will be freed.
- */
- for (i = 0; i < (1 << order); i++)
- set_page_count(page+i, 1);
-#endif /* CONFIG_MMU */
-}
-
-/*
- * This page is about to be returned from the page allocator
- */
-static void prep_new_page(struct page *page, int order)
-{
- if (page->mapping || page_mapped(page) ||
- (page->flags & (
- 1 << PG_private |
- 1 << PG_locked |
- 1 << PG_lru |
- 1 << PG_active |
- 1 << PG_dirty |
- 1 << PG_reclaim |
- 1 << PG_maplock |
- 1 << PG_anon |
- 1 << PG_swapcache |
- 1 << PG_writeback )))
- bad_page(__FUNCTION__, page);
-
- page->flags &= ~(1 << PG_uptodate | 1 << PG_error |
- 1 << PG_referenced | 1 << PG_arch_1 |
- 1 << PG_checked | 1 << PG_mappedtodisk);
- page->private = 0;
- set_page_refs(page, order);
-}
-
-/*
- * Do the hard work of removing an element from the buddy allocator.
- * Call me with the zone->lock already held.
- */
-static struct page *__rmqueue(struct zone *zone, unsigned int order)
-{
- struct free_area * area;
- unsigned int current_order;
- struct page *page;
- unsigned int index;
-
- for (current_order = order; current_order < MAX_ORDER; ++current_order) {
- area = zone->free_area + current_order;
- if (list_empty(&area->free_list))
- continue;
-
- page = list_entry(area->free_list.next, struct page, lru);
- list_del(&page->lru);
- index = page - zone->zone_mem_map;
- if (current_order != MAX_ORDER-1)
- MARK_USED(index, current_order, area);
- zone->free_pages -= 1UL << order;
- return expand(zone, page, index, order, current_order, area);
- }
-
- return NULL;
-}
-
-/*
- * Obtain a specified number of elements from the buddy allocator, all under
- * a single hold of the lock, for efficiency. Add them to the supplied list.
- * Returns the number of new pages which were placed at *list.
- */
-static int rmqueue_bulk(struct zone *zone, unsigned int order,
- unsigned long count, struct list_head *list)
-{
- unsigned long flags;
- int i;
- int allocated = 0;
- struct page *page;
-
- spin_lock_irqsave(&zone->lock, flags);
- for (i = 0; i < count; ++i) {
- page = __rmqueue(zone, order);
- if (page == NULL)
- break;
- allocated++;
- list_add_tail(&page->lru, list);
- }
- spin_unlock_irqrestore(&zone->lock, flags);
- return allocated;
-}
-
-#if defined(CONFIG_PM) || defined(CONFIG_HOTPLUG_CPU)
-static void __drain_pages(unsigned int cpu)
-{
- struct zone *zone;
- int i;
-
- for_each_zone(zone) {
- struct per_cpu_pageset *pset;
-
- pset = &zone->pageset[cpu];
- for (i = 0; i < ARRAY_SIZE(pset->pcp); i++) {
- struct per_cpu_pages *pcp;
-
- pcp = &pset->pcp[i];
- pcp->count -= free_pages_bulk(zone, pcp->count,
- &pcp->list, 0);
- }
- }
-}
-#endif /* CONFIG_PM || CONFIG_HOTPLUG_CPU */
-
-#ifdef CONFIG_PM
-int is_head_of_free_region(struct page *page)
-{
- struct zone *zone = page_zone(page);
- unsigned long flags;
- int order;
- struct list_head *curr;
-
- /*
- * Should not matter as we need quiescent system for
- * suspend anyway, but...
- */
- spin_lock_irqsave(&zone->lock, flags);
- for (order = MAX_ORDER - 1; order >= 0; --order)
- list_for_each(curr, &zone->free_area[order].free_list)
- if (page == list_entry(curr, struct page, lru)) {
- spin_unlock_irqrestore(&zone->lock, flags);
- return 1 << order;
- }
- spin_unlock_irqrestore(&zone->lock, flags);
- return 0;
-}
-
-/*
- * Spill all of this CPU's per-cpu pages back into the buddy allocator.
- */
-void drain_local_pages(void)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- __drain_pages(smp_processor_id());
- local_irq_restore(flags);
-}
-#endif /* CONFIG_PM */
-
-static void zone_statistics(struct zonelist *zonelist, struct zone *z)
-{
-#ifdef CONFIG_NUMA
- unsigned long flags;
- int cpu;
- pg_data_t *pg = z->zone_pgdat;
- pg_data_t *orig = zonelist->zones[0]->zone_pgdat;
- struct per_cpu_pageset *p;
-
- local_irq_save(flags);
- cpu = smp_processor_id();
- p = &z->pageset[cpu];
- if (pg == orig) {
- z->pageset[cpu].numa_hit++;
- } else {
- p->numa_miss++;
- zonelist->zones[0]->pageset[cpu].numa_foreign++;
- }
- if (pg == NODE_DATA(numa_node_id()))
- p->local_node++;
- else
- p->other_node++;
- local_irq_restore(flags);
-#endif
-}
-
-/*
- * Free a 0-order page
- */
-static void FASTCALL(free_hot_cold_page(struct page *page, int cold));
-static void fastcall free_hot_cold_page(struct page *page, int cold)
-{
- struct zone *zone = page_zone(page);
- struct per_cpu_pages *pcp;
- unsigned long flags;
-
- kernel_map_pages(page, 1, 0);
- inc_page_state(pgfree);
- free_pages_check(__FUNCTION__, page);
- pcp = &zone->pageset[get_cpu()].pcp[cold];
- local_irq_save(flags);
- if (pcp->count >= pcp->high)
- pcp->count -= free_pages_bulk(zone, pcp->batch, &pcp->list, 0);
- list_add(&page->lru, &pcp->list);
- pcp->count++;
- local_irq_restore(flags);
- put_cpu();
-}
-
-void fastcall free_hot_page(struct page *page)
-{
- free_hot_cold_page(page, 0);
-}
-
-void fastcall free_cold_page(struct page *page)
-{
- free_hot_cold_page(page, 1);
-}
-
-/*
- * Really, prep_compound_page() should be called from __rmqueue_bulk(). But
- * we cheat by calling it from here, in the order > 0 path. Saves a branch
- * or two.
- */
-
-static struct page *
-buffered_rmqueue(struct zone *zone, int order, int gfp_flags)
-{
- unsigned long flags;
- struct page *page = NULL;
- int cold = !!(gfp_flags & __GFP_COLD);
-
- if (order == 0) {
- struct per_cpu_pages *pcp;
-
- pcp = &zone->pageset[get_cpu()].pcp[cold];
- local_irq_save(flags);
- if (pcp->count <= pcp->low)
- pcp->count += rmqueue_bulk(zone, 0,
- pcp->batch, &pcp->list);
- if (pcp->count) {
- page = list_entry(pcp->list.next, struct page, lru);
- list_del(&page->lru);
- pcp->count--;
- }
- local_irq_restore(flags);
- put_cpu();
- }
-
- if (page == NULL) {
- spin_lock_irqsave(&zone->lock, flags);
- page = __rmqueue(zone, order);
- spin_unlock_irqrestore(&zone->lock, flags);
- }
-
- if (page != NULL) {
- BUG_ON(bad_range(zone, page));
- mod_page_state_zone(zone, pgalloc, 1 << order);
- prep_new_page(page, order);
- if (order && (gfp_flags & __GFP_COMP))
- prep_compound_page(page, order);
- }
- return page;
-}
-
-/*
- * This is the 'heart' of the zoned buddy allocator.
- *
- * Herein lies the mysterious "incremental min". That's the
- *
- * local_low = z->pages_low;
- * min += local_low;
- *
- * thing. The intent here is to provide additional protection to low zones for
- * allocation requests which _could_ use higher zones. So a GFP_HIGHMEM
- * request is not allowed to dip as deeply into the normal zone as a GFP_KERNEL
- * request. This preserves additional space in those lower zones for requests
- * which really do need memory from those zones. It means that on a decent
- * sized machine, GFP_HIGHMEM and GFP_KERNEL requests basically leave the DMA
- * zone untouched.
- */
-struct page * fastcall
-__alloc_pages(unsigned int gfp_mask, unsigned int order,
- struct zonelist *zonelist)
-{
- const int wait = gfp_mask & __GFP_WAIT;
- unsigned long min;
- struct zone **zones;
- struct page *page;
- struct reclaim_state reclaim_state;
- struct task_struct *p = current;
- int i;
- int alloc_type;
- int do_retry;
-
- might_sleep_if(wait);
-
- zones = zonelist->zones; /* the list of zones suitable for gfp_mask */
- if (zones[0] == NULL) /* no zones in the zonelist */
- return NULL;
-
- alloc_type = zone_idx(zones[0]);
-
- /* Go through the zonelist once, looking for a zone with enough free */
- for (i = 0; zones[i] != NULL; i++) {
- struct zone *z = zones[i];
-
- min = (1<<order) + z->protection[alloc_type];
-
- /*
- * We let real-time tasks dip their real-time paws a little
- * deeper into reserves.
- */
- if (rt_task(p))
- min -= z->pages_low >> 1;
-
- if (z->free_pages >= min ||
- (!wait && z->free_pages >= z->pages_high)) {
- page = buffered_rmqueue(z, order, gfp_mask);
- if (page) {
- zone_statistics(zonelist, z);
- goto got_pg;
- }
- }
- }
-
- /* we're somewhat low on memory, failed to find what we needed */
- for (i = 0; zones[i] != NULL; i++)
- wakeup_kswapd(zones[i]);
-
- /* Go through the zonelist again, taking __GFP_HIGH into account */
- for (i = 0; zones[i] != NULL; i++) {
- struct zone *z = zones[i];
-
- min = (1<<order) + z->protection[alloc_type];
-
- if (gfp_mask & __GFP_HIGH)
- min -= z->pages_low >> 2;
- if (rt_task(p))
- min -= z->pages_low >> 1;
-
- if (z->free_pages >= min ||
- (!wait && z->free_pages >= z->pages_high)) {
- page = buffered_rmqueue(z, order, gfp_mask);
- if (page) {
- zone_statistics(zonelist, z);
- goto got_pg;
- }
- }
- }
-
- /* here we're in the low on memory slow path */
-
-rebalance:
- if ((p->flags & (PF_MEMALLOC | PF_MEMDIE)) && !in_interrupt()) {
- /* go through the zonelist yet again, ignoring mins */
- for (i = 0; zones[i] != NULL; i++) {
- struct zone *z = zones[i];
-
- page = buffered_rmqueue(z, order, gfp_mask);
- if (page) {
- zone_statistics(zonelist, z);
- goto got_pg;
- }
- }
- goto nopage;
- }
-
- /* Atomic allocations - we can't balance anything */
- if (!wait)
- goto nopage;
-
- p->flags |= PF_MEMALLOC;
- reclaim_state.reclaimed_slab = 0;
- p->reclaim_state = &reclaim_state;
-
- try_to_free_pages(zones, gfp_mask, order);
-
- p->reclaim_state = NULL;
- p->flags &= ~PF_MEMALLOC;
-
- /* go through the zonelist yet one more time */
- for (i = 0; zones[i] != NULL; i++) {
- struct zone *z = zones[i];
-
- min = (1UL << order) + z->protection[alloc_type];
-
- if (z->free_pages >= min ||
- (!wait && z->free_pages >= z->pages_high)) {
- page = buffered_rmqueue(z, order, gfp_mask);
- if (page) {
- zone_statistics(zonelist, z);
- goto got_pg;
- }
- }
- }
-
- /*
- * Don't let big-order allocations loop unless the caller explicitly
- * requests that. Wait for some write requests to complete then retry.
- *
- * In this implementation, __GFP_REPEAT means __GFP_NOFAIL, but that
- * may not be true in other implementations.
- */
- do_retry = 0;
- if (!(gfp_mask & __GFP_NORETRY)) {
- if ((order <= 3) || (gfp_mask & __GFP_REPEAT))
- do_retry = 1;
- if (gfp_mask & __GFP_NOFAIL)
- do_retry = 1;
- }
- if (do_retry) {
- blk_congestion_wait(WRITE, HZ/50);
- goto rebalance;
- }
-
-nopage:
- if (!(gfp_mask & __GFP_NOWARN) && printk_ratelimit()) {
- printk(KERN_WARNING "%s: page allocation failure."
- " order:%d, mode:0x%x\n",
- p->comm, order, gfp_mask);
- dump_stack();
- }
- return NULL;
-got_pg:
- kernel_map_pages(page, 1 << order, 1);
- return page;
-}
-
-EXPORT_SYMBOL(__alloc_pages);
-
-#ifdef CONFIG_NUMA
-/* Early boot: Everything is done by one cpu, but the data structures will be
- * used by all cpus - spread them on all nodes.
- */
-static __init unsigned long get_boot_pages(unsigned int gfp_mask, unsigned int order)
-{
-static int nodenr;
- int i = nodenr;
- struct page *page;
-
- for (;;) {
- if (i > nodenr + numnodes)
- return 0;
- if (node_present_pages(i%numnodes)) {
- struct zone **z;
- /* The node contains memory. Check that there is
- * memory in the intended zonelist.
- */
- z = NODE_DATA(i%numnodes)->node_zonelists[gfp_mask & GFP_ZONEMASK].zones;
- while (*z) {
- if ( (*z)->free_pages > (1UL<<order))
- goto found_node;
- z++;
- }
- }
- i++;
- }
-found_node:
- nodenr = i+1;
- page = alloc_pages_node(i%numnodes, gfp_mask, order);
- if (!page)
- return 0;
- return (unsigned long) page_address(page);
-}
-#endif
-
-/*
- * Common helper functions.
- */
-fastcall unsigned long __get_free_pages(unsigned int gfp_mask, unsigned int order)
-{
- struct page * page;
-
-#ifdef CONFIG_NUMA
- if (unlikely(system_state == SYSTEM_BOOTING))
- return get_boot_pages(gfp_mask, order);
-#endif
- page = alloc_pages(gfp_mask, order);
- if (!page)
- return 0;
- return (unsigned long) page_address(page);
-}
-
-EXPORT_SYMBOL(__get_free_pages);
-
-fastcall unsigned long get_zeroed_page(unsigned int gfp_mask)
-{
- struct page * page;
-
- /*
- * get_zeroed_page() returns a 32-bit address, which cannot represent
- * a highmem page
- */
- BUG_ON(gfp_mask & __GFP_HIGHMEM);
-
- page = alloc_pages(gfp_mask, 0);
- if (page) {
- void *address = page_address(page);
- clear_page(address);
- return (unsigned long) address;
- }
- return 0;
-}
-
-EXPORT_SYMBOL(get_zeroed_page);
-
-void __pagevec_free(struct pagevec *pvec)
-{
- int i = pagevec_count(pvec);
-
- while (--i >= 0)
- free_hot_cold_page(pvec->pages[i], pvec->cold);
-}
-
-fastcall void __free_pages(struct page *page, unsigned int order)
-{
- if (!PageReserved(page) && put_page_testzero(page)) {
- if (order == 0)
- free_hot_page(page);
- else
- __free_pages_ok(page, order);
- }
-}
-
-EXPORT_SYMBOL(__free_pages);
-
-fastcall void free_pages(unsigned long addr, unsigned int order)
-{
- if (addr != 0) {
- BUG_ON(!virt_addr_valid(addr));
- __free_pages(virt_to_page(addr), order);
- }
-}
-
-EXPORT_SYMBOL(free_pages);
-
-/*
- * Total amount of free (allocatable) RAM:
- */
-unsigned int nr_free_pages(void)
-{
- unsigned int sum = 0;
- struct zone *zone;
-
- for_each_zone(zone)
- sum += zone->free_pages;
-
- return sum;
-}
-
-EXPORT_SYMBOL(nr_free_pages);
-
-unsigned int nr_used_zone_pages(void)
-{
- unsigned int pages = 0;
- struct zone *zone;
-
- for_each_zone(zone)
- pages += zone->nr_active + zone->nr_inactive;
-
- return pages;
-}
-
-#ifdef CONFIG_NUMA
-unsigned int nr_free_pages_pgdat(pg_data_t *pgdat)
-{
- unsigned int i, sum = 0;
-
- for (i = 0; i < MAX_NR_ZONES; i++)
- sum += pgdat->node_zones[i].free_pages;
-
- return sum;
-}
-#endif
-
-static unsigned int nr_free_zone_pages(int offset)
-{
- pg_data_t *pgdat;
- unsigned int sum = 0;
-
- for_each_pgdat(pgdat) {
- struct zonelist *zonelist = pgdat->node_zonelists + offset;
- struct zone **zonep = zonelist->zones;
- struct zone *zone;
-
- for (zone = *zonep++; zone; zone = *zonep++) {
- unsigned long size = zone->present_pages;
- unsigned long high = zone->pages_high;
- if (size > high)
- sum += size - high;
- }
- }
-
- return sum;
-}
-
-/*
- * Amount of free RAM allocatable within ZONE_DMA and ZONE_NORMAL
- */
-unsigned int nr_free_buffer_pages(void)
-{
- return nr_free_zone_pages(GFP_USER & GFP_ZONEMASK);
-}
-
-/*
- * Amount of free RAM allocatable within all zones
- */
-unsigned int nr_free_pagecache_pages(void)
-{
- return nr_free_zone_pages(GFP_HIGHUSER & GFP_ZONEMASK);
-}
-
-#ifdef CONFIG_HIGHMEM
-unsigned int nr_free_highpages (void)
-{
- pg_data_t *pgdat;
- unsigned int pages = 0;
-
- for_each_pgdat(pgdat)
- pages += pgdat->node_zones[ZONE_HIGHMEM].free_pages;
-
- return pages;
-}
-#endif
-
-#ifdef CONFIG_NUMA
-static void show_node(struct zone *zone)
-{
- printk("Node %d ", zone->zone_pgdat->node_id);
-}
-#else
-#define show_node(zone) do { } while (0)
-#endif
-
-/*
- * Accumulate the page_state information across all CPUs.
- * The result is unavoidably approximate - it can change
- * during and after execution of this function.
- */
-DEFINE_PER_CPU(struct page_state, page_states) = {0};
-EXPORT_PER_CPU_SYMBOL(page_states);
-
-atomic_t nr_pagecache = ATOMIC_INIT(0);
-EXPORT_SYMBOL(nr_pagecache);
-#ifdef CONFIG_SMP
-DEFINE_PER_CPU(long, nr_pagecache_local) = 0;
-#endif
-
-void __get_page_state(struct page_state *ret, int nr)
-{
- int cpu = 0;
-
- memset(ret, 0, sizeof(*ret));
- while (cpu < NR_CPUS) {
- unsigned long *in, *out, off;
-
- if (!cpu_possible(cpu)) {
- cpu++;
- continue;
- }
-
- in = (unsigned long *)&per_cpu(page_states, cpu);
- cpu++;
- if (cpu < NR_CPUS && cpu_possible(cpu))
- prefetch(&per_cpu(page_states, cpu));
- out = (unsigned long *)ret;
- for (off = 0; off < nr; off++)
- *out++ += *in++;
- }
-}
-
-void get_page_state(struct page_state *ret)
-{
- int nr;
-
- nr = offsetof(struct page_state, GET_PAGE_STATE_LAST);
- nr /= sizeof(unsigned long);
-
- __get_page_state(ret, nr + 1);
-}
-
-void get_full_page_state(struct page_state *ret)
-{
- __get_page_state(ret, sizeof(*ret) / sizeof(unsigned long));
-}
-
-unsigned long __read_page_state(unsigned offset)
-{
- unsigned long ret = 0;
- int cpu;
-
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
- unsigned long in;
-
- if (!cpu_possible(cpu))
- continue;
-
- in = (unsigned long)&per_cpu(page_states, cpu) + offset;
- ret += *((unsigned long *)in);
- }
- return ret;
-}
-
-void get_zone_counts(unsigned long *active,
- unsigned long *inactive, unsigned long *free)
-{
- struct zone *zone;
-
- *active = 0;
- *inactive = 0;
- *free = 0;
- for_each_zone(zone) {
- *active += zone->nr_active;
- *inactive += zone->nr_inactive;
- *free += zone->free_pages;
- }
-}
-
-void si_meminfo(struct sysinfo *val)
-{
- val->totalram = totalram_pages;
- val->sharedram = 0;
- val->freeram = nr_free_pages();
- val->bufferram = nr_blockdev_pages();
-#ifdef CONFIG_HIGHMEM
- val->totalhigh = totalhigh_pages;
- val->freehigh = nr_free_highpages();
-#else
- val->totalhigh = 0;
- val->freehigh = 0;
-#endif
- val->mem_unit = PAGE_SIZE;
-}
-
-EXPORT_SYMBOL(si_meminfo);
-
-#ifdef CONFIG_NUMA
-void si_meminfo_node(struct sysinfo *val, int nid)
-{
- pg_data_t *pgdat = NODE_DATA(nid);
-
- val->totalram = pgdat->node_present_pages;
- val->freeram = nr_free_pages_pgdat(pgdat);
- val->totalhigh = pgdat->node_zones[ZONE_HIGHMEM].present_pages;
- val->freehigh = pgdat->node_zones[ZONE_HIGHMEM].free_pages;
- val->mem_unit = PAGE_SIZE;
-}
-#endif
-
-#define K(x) ((x) << (PAGE_SHIFT-10))
-
-/*
- * Show free area list (used inside shift_scroll-lock stuff)
- * We also calculate the percentage fragmentation. We do this by counting the
- * memory on each free list with the exception of the first item on the list.
- */
-void show_free_areas(void)
-{
- struct page_state ps;
- int cpu, temperature;
- unsigned long active;
- unsigned long inactive;
- unsigned long free;
- struct zone *zone;
-
- for_each_zone(zone) {
- show_node(zone);
- printk("%s per-cpu:", zone->name);
-
- if (!zone->present_pages) {
- printk(" empty\n");
- continue;
- } else
- printk("\n");
-
- for (cpu = 0; cpu < NR_CPUS; ++cpu) {
- struct per_cpu_pageset *pageset;
-
- if (!cpu_possible(cpu))
- continue;
-
- pageset = zone->pageset + cpu;
-
- for (temperature = 0; temperature < 2; temperature++)
- printk("cpu %d %s: low %d, high %d, batch %d\n",
- cpu,
- temperature ? "cold" : "hot",
- pageset->pcp[temperature].low,
- pageset->pcp[temperature].high,
- pageset->pcp[temperature].batch);
- }
- }
-
- get_page_state(&ps);
- get_zone_counts(&active, &inactive, &free);
-
- printk("\nFree pages: %11ukB (%ukB HighMem)\n",
- K(nr_free_pages()),
- K(nr_free_highpages()));
-
- printk("Active:%lu inactive:%lu dirty:%lu writeback:%lu "
- "unstable:%lu free:%u slab:%lu mapped:%lu pagetables:%lu\n",
- active,
- inactive,
- ps.nr_dirty,
- ps.nr_writeback,
- ps.nr_unstable,
- nr_free_pages(),
- ps.nr_slab,
- ps.nr_mapped,
- ps.nr_page_table_pages);
-
- for_each_zone(zone) {
- int i;
-
- show_node(zone);
- printk("%s"
- " free:%lukB"
- " min:%lukB"
- " low:%lukB"
- " high:%lukB"
- " active:%lukB"
- " inactive:%lukB"
- " present:%lukB"
- "\n",
- zone->name,
- K(zone->free_pages),
- K(zone->pages_min),
- K(zone->pages_low),
- K(zone->pages_high),
- K(zone->nr_active),
- K(zone->nr_inactive),
- K(zone->present_pages)
- );
- printk("protections[]:");
- for (i = 0; i < MAX_NR_ZONES; i++)
- printk(" %lu", zone->protection[i]);
- printk("\n");
- }
-
- for_each_zone(zone) {
- struct list_head *elem;
- unsigned long nr, flags, order, total = 0;
-
- show_node(zone);
- printk("%s: ", zone->name);
- if (!zone->present_pages) {
- printk("empty\n");
- continue;
- }
-
- spin_lock_irqsave(&zone->lock, flags);
- for (order = 0; order < MAX_ORDER; order++) {
- nr = 0;
- list_for_each(elem, &zone->free_area[order].free_list)
- ++nr;
- total += nr << order;
- printk("%lu*%lukB ", nr, K(1UL) << order);
- }
- spin_unlock_irqrestore(&zone->lock, flags);
- printk("= %lukB\n", K(total));
- }
-
- show_swap_cache_info();
-}
-
-/*
- * Builds allocation fallback zone lists.
- */
-static int __init build_zonelists_node(pg_data_t *pgdat, struct zonelist *zonelist, int j, int k)
-{
- switch (k) {
- struct zone *zone;
- default:
- BUG();
- case ZONE_HIGHMEM:
- zone = pgdat->node_zones + ZONE_HIGHMEM;
- if (zone->present_pages) {
-#ifndef CONFIG_HIGHMEM
- BUG();
-#endif
- zonelist->zones[j++] = zone;
- }
- case ZONE_NORMAL:
- zone = pgdat->node_zones + ZONE_NORMAL;
- if (zone->present_pages)
- zonelist->zones[j++] = zone;
- case ZONE_DMA:
- zone = pgdat->node_zones + ZONE_DMA;
- if (zone->present_pages)
- zonelist->zones[j++] = zone;
- }
-
- return j;
-}
-
-#ifdef CONFIG_NUMA
-#define MAX_NODE_LOAD (numnodes)
-static int __initdata node_load[MAX_NUMNODES];
-/**
- * find_next_best_node - find the next node that should appear in a given
- * node's fallback list
- * @node: node whose fallback list we're appending
- * @used_node_mask: pointer to the bitmap of already used nodes
- *
- * We use a number of factors to determine which is the next node that should
- * appear on a given node's fallback list. The node should not have appeared
- * already in @node's fallback list, and it should be the next closest node
- * according to the distance array (which contains arbitrary distance values
- * from each node to each node in the system), and should also prefer nodes
- * with no CPUs, since presumably they'll have very little allocation pressure
- * on them otherwise.
- * It returns -1 if no node is found.
- */
-static int __init find_next_best_node(int node, void *used_node_mask)
-{
- int i, n, val;
- int min_val = INT_MAX;
- int best_node = -1;
-
- for (i = 0; i < numnodes; i++) {
- cpumask_t tmp;
-
- /* Start from local node */
- n = (node+i)%numnodes;
-
- /* Don't want a node to appear more than once */
- if (test_bit(n, used_node_mask))
- continue;
-
- /* Use the distance array to find the distance */
- val = node_distance(node, n);
-
- /* Give preference to headless and unused nodes */
- tmp = node_to_cpumask(n);
- if (!cpus_empty(tmp))
- val += PENALTY_FOR_NODE_WITH_CPUS;
-
- /* Slight preference for less loaded node */
- val *= (MAX_NODE_LOAD*MAX_NUMNODES);
- val += node_load[n];
-
- if (val < min_val) {
- min_val = val;
- best_node = n;
- }
- }
-
- if (best_node >= 0)
- set_bit(best_node, used_node_mask);
-
- return best_node;
-}
-
-static void __init build_zonelists(pg_data_t *pgdat)
-{
- int i, j, k, node, local_node;
- int prev_node, load;
- struct zonelist *zonelist;
- DECLARE_BITMAP(used_mask, MAX_NUMNODES);
-
- /* initialize zonelists */
- for (i = 0; i < MAX_NR_ZONES; i++) {
- zonelist = pgdat->node_zonelists + i;
- memset(zonelist, 0, sizeof(*zonelist));
- zonelist->zones[0] = NULL;
- }
-
- /* NUMA-aware ordering of nodes */
- local_node = pgdat->node_id;
- load = numnodes;
- prev_node = local_node;
- bitmap_zero(used_mask, MAX_NUMNODES);
- while ((node = find_next_best_node(local_node, used_mask)) >= 0) {
- /*
- * We don't want to pressure a particular node.
- * So adding penalty to the first node in same
- * distance group to make it round-robin.
- */
- if (node_distance(local_node, node) !=
- node_distance(local_node, prev_node))
- node_load[node] += load;
- prev_node = node;
- load--;
- for (i = 0; i < MAX_NR_ZONES; i++) {
- zonelist = pgdat->node_zonelists + i;
- for (j = 0; zonelist->zones[j] != NULL; j++);
-
- k = ZONE_NORMAL;
- if (i & __GFP_HIGHMEM)
- k = ZONE_HIGHMEM;
- if (i & __GFP_DMA)
- k = ZONE_DMA;
-
- j = build_zonelists_node(NODE_DATA(node), zonelist, j, k);
- zonelist->zones[j] = NULL;
- }
- }
-}
-
-#else /* CONFIG_NUMA */
-
-static void __init build_zonelists(pg_data_t *pgdat)
-{
- int i, j, k, node, local_node;
-
- local_node = pgdat->node_id;
- for (i = 0; i < MAX_NR_ZONES; i++) {
- struct zonelist *zonelist;
-
- zonelist = pgdat->node_zonelists + i;
- memset(zonelist, 0, sizeof(*zonelist));
-
- j = 0;
- k = ZONE_NORMAL;
- if (i & __GFP_HIGHMEM)
- k = ZONE_HIGHMEM;
- if (i & __GFP_DMA)
- k = ZONE_DMA;
-
- j = build_zonelists_node(pgdat, zonelist, j, k);
- /*
- * Now we build the zonelist so that it contains the zones
- * of all the other nodes.
- * We don't want to pressure a particular node, so when
- * building the zones for node N, we make sure that the
- * zones coming right after the local ones are those from
- * node N+1 (modulo N)
- */
- for (node = local_node + 1; node < numnodes; node++)
- j = build_zonelists_node(NODE_DATA(node), zonelist, j, k);
- for (node = 0; node < local_node; node++)
- j = build_zonelists_node(NODE_DATA(node), zonelist, j, k);
-
- zonelist->zones[j] = NULL;
- }
-}
-
-#endif /* CONFIG_NUMA */
-
-void __init build_all_zonelists(void)
-{
- int i;
-
- for(i = 0 ; i < numnodes ; i++)
- build_zonelists(NODE_DATA(i));
- printk("Built %i zonelists\n", numnodes);
-}
-
-/*
- * Helper functions to size the waitqueue hash table.
- * Essentially these want to choose hash table sizes sufficiently
- * large so that collisions trying to wait on pages are rare.
- * But in fact, the number of active page waitqueues on typical
- * systems is ridiculously low, less than 200. So this is even
- * conservative, even though it seems large.
- *
- * The constant PAGES_PER_WAITQUEUE specifies the ratio of pages to
- * waitqueues, i.e. the size of the waitq table given the number of pages.
- */
-#define PAGES_PER_WAITQUEUE 256
-
-static inline unsigned long wait_table_size(unsigned long pages)
-{
- unsigned long size = 1;
-
- pages /= PAGES_PER_WAITQUEUE;
-
- while (size < pages)
- size <<= 1;
-
- /*
- * Once we have dozens or even hundreds of threads sleeping
- * on IO we've got bigger problems than wait queue collision.
- * Limit the size of the wait table to a reasonable size.
- */
- size = min(size, 4096UL);
-
- return max(size, 4UL);
-}
-
-/*
- * This is an integer logarithm so that shifts can be used later
- * to extract the more random high bits from the multiplicative
- * hash function before the remainder is taken.
- */
-static inline unsigned long wait_table_bits(unsigned long size)
-{
- return ffz(~size);
-}
-
-#define LONG_ALIGN(x) (((x)+(sizeof(long))-1)&~((sizeof(long))-1))
-
-static void __init calculate_zone_totalpages(struct pglist_data *pgdat,
- unsigned long *zones_size, unsigned long *zholes_size)
-{
- unsigned long realtotalpages, totalpages = 0;
- int i;
-
- for (i = 0; i < MAX_NR_ZONES; i++)
- totalpages += zones_size[i];
- pgdat->node_spanned_pages = totalpages;
-
- realtotalpages = totalpages;
- if (zholes_size)
- for (i = 0; i < MAX_NR_ZONES; i++)
- realtotalpages -= zholes_size[i];
- pgdat->node_present_pages = realtotalpages;
- printk("On node %d totalpages: %lu\n", pgdat->node_id, realtotalpages);
-}
-
-
-/*
- * Initially all pages are reserved - free ones are freed
- * up by free_all_bootmem() once the early boot process is
- * done. Non-atomic initialization, single-pass.
- */
-void __init memmap_init_zone(struct page *start, unsigned long size, int nid,
- unsigned long zone, unsigned long start_pfn)
-{
- struct page *page;
-
- for (page = start; page < (start + size); page++) {
- set_page_zone(page, NODEZONE(nid, zone));
- set_page_count(page, 0);
- SetPageReserved(page);
- INIT_LIST_HEAD(&page->lru);
-#ifdef WANT_PAGE_VIRTUAL
- /* The shift won't overflow because ZONE_NORMAL is below 4G. */
- if (zone != ZONE_HIGHMEM)
- set_page_address(page, __va(start_pfn << PAGE_SHIFT));
-#endif
- start_pfn++;
- }
-}
-
-#ifndef __HAVE_ARCH_MEMMAP_INIT
-#define memmap_init(start, size, nid, zone, start_pfn) \
- memmap_init_zone((start), (size), (nid), (zone), (start_pfn))
-#endif
-
-/*
- * Set up the zone data structures:
- * - mark all pages reserved
- * - mark all memory queues empty
- * - clear the memory bitmaps
- */
-static void __init free_area_init_core(struct pglist_data *pgdat,
- unsigned long *zones_size, unsigned long *zholes_size)
-{
- unsigned long i, j;
- const unsigned long zone_required_alignment = 1UL << (MAX_ORDER-1);
- int cpu, nid = pgdat->node_id;
- struct page *lmem_map = pgdat->node_mem_map;
- unsigned long zone_start_pfn = pgdat->node_start_pfn;
-
- pgdat->nr_zones = 0;
- init_waitqueue_head(&pgdat->kswapd_wait);
-
- for (j = 0; j < MAX_NR_ZONES; j++) {
- struct zone *zone = pgdat->node_zones + j;
- unsigned long size, realsize;
- unsigned long batch;
-
- zone_table[NODEZONE(nid, j)] = zone;
- realsize = size = zones_size[j];
- if (zholes_size)
- realsize -= zholes_size[j];
-
- zone->spanned_pages = size;
- zone->present_pages = realsize;
- zone->name = zone_names[j];
- spin_lock_init(&zone->lock);
- spin_lock_init(&zone->lru_lock);
- zone->zone_pgdat = pgdat;
- zone->free_pages = 0;
-
- zone->temp_priority = zone->prev_priority = DEF_PRIORITY;
-
- /*
- * The per-cpu-pages pools are set to around 1000th of the
- * size of the zone. But no more than 1/4 of a meg - there's
- * no point in going beyond the size of L2 cache.
- *
- * OK, so we don't know how big the cache is. So guess.
- */
- batch = zone->present_pages / 1024;
- if (batch * PAGE_SIZE > 256 * 1024)
- batch = (256 * 1024) / PAGE_SIZE;
- batch /= 4; /* We effectively *= 4 below */
- if (batch < 1)
- batch = 1;
-
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
- struct per_cpu_pages *pcp;
-
- pcp = &zone->pageset[cpu].pcp[0]; /* hot */
- pcp->count = 0;
- pcp->low = 2 * batch;
- pcp->high = 6 * batch;
- pcp->batch = 1 * batch;
- INIT_LIST_HEAD(&pcp->list);
-
- pcp = &zone->pageset[cpu].pcp[1]; /* cold */
- pcp->count = 0;
- pcp->low = 0;
- pcp->high = 2 * batch;
- pcp->batch = 1 * batch;
- INIT_LIST_HEAD(&pcp->list);
- }
- printk(" %s zone: %lu pages, LIFO batch:%lu\n",
- zone_names[j], realsize, batch);
- INIT_LIST_HEAD(&zone->active_list);
- INIT_LIST_HEAD(&zone->inactive_list);
- atomic_set(&zone->nr_scan_active, 0);
- atomic_set(&zone->nr_scan_inactive, 0);
- zone->nr_active = 0;
- zone->nr_inactive = 0;
- if (!size)
- continue;
-
- /*
- * The per-page waitqueue mechanism uses hashed waitqueues
- * per zone.
- */
- zone->wait_table_size = wait_table_size(size);
- zone->wait_table_bits =
- wait_table_bits(zone->wait_table_size);
- zone->wait_table = (wait_queue_head_t *)
- alloc_bootmem_node(pgdat, zone->wait_table_size
- * sizeof(wait_queue_head_t));
-
- for(i = 0; i < zone->wait_table_size; ++i)
- init_waitqueue_head(zone->wait_table + i);
-
- pgdat->nr_zones = j+1;
-
- zone->zone_mem_map = lmem_map;
- zone->zone_start_pfn = zone_start_pfn;
-
- if ((zone_start_pfn) & (zone_required_alignment-1))
- printk("BUG: wrong zone alignment, it will crash\n");
-
- memmap_init(lmem_map, size, nid, j, zone_start_pfn);
-
- zone_start_pfn += size;
- lmem_map += size;
-
- for (i = 0; ; i++) {
- unsigned long bitmap_size;
-
- INIT_LIST_HEAD(&zone->free_area[i].free_list);
- if (i == MAX_ORDER-1) {
- zone->free_area[i].map = NULL;
- break;
- }
-
- /*
- * Page buddy system uses "index >> (i+1)",
- * where "index" is at most "size-1".
- *
- * The extra "+3" is to round down to byte
- * size (8 bits per byte assumption). Thus
- * we get "(size-1) >> (i+4)" as the last byte
- * we can access.
- *
- * The "+1" is because we want to round the
- * byte allocation up rather than down. So
- * we should have had a "+7" before we shifted
- * down by three. Also, we have to add one as
- * we actually _use_ the last bit (it's [0,n]
- * inclusive, not [0,n[).
- *
- * So we actually had +7+1 before we shift
- * down by 3. But (n+8) >> 3 == (n >> 3) + 1
- * (modulo overflows, which we do not have).
- *
- * Finally, we LONG_ALIGN because all bitmap
- * operations are on longs.
- */
- bitmap_size = (size-1) >> (i+4);
- bitmap_size = LONG_ALIGN(bitmap_size+1);
- zone->free_area[i].map =
- (unsigned long *) alloc_bootmem_node(pgdat, bitmap_size);
- }
- }
-}
-
-void __init free_area_init_node(int nid, struct pglist_data *pgdat,
- struct page *node_mem_map, unsigned long *zones_size,
- unsigned long node_start_pfn, unsigned long *zholes_size)
-{
- unsigned long size;
-
- pgdat->node_id = nid;
- pgdat->node_start_pfn = node_start_pfn;
- calculate_zone_totalpages(pgdat, zones_size, zholes_size);
- if (!node_mem_map) {
- size = (pgdat->node_spanned_pages + 1) * sizeof(struct page);
- node_mem_map = alloc_bootmem_node(pgdat, size);
- }
- pgdat->node_mem_map = node_mem_map;
-
- free_area_init_core(pgdat, zones_size, zholes_size);
-}
-
-#ifndef CONFIG_DISCONTIGMEM
-static bootmem_data_t contig_bootmem_data;
-struct pglist_data contig_page_data = { .bdata = &contig_bootmem_data };
-
-EXPORT_SYMBOL(contig_page_data);
-
-void __init free_area_init(unsigned long *zones_size)
-{
- free_area_init_node(0, &contig_page_data, NULL, zones_size,
- __pa(PAGE_OFFSET) >> PAGE_SHIFT, NULL);
- mem_map = contig_page_data.node_mem_map;
-}
-#endif
-
-#ifdef CONFIG_PROC_FS
-
-#include <linux/seq_file.h>
-
-static void *frag_start(struct seq_file *m, loff_t *pos)
-{
- pg_data_t *pgdat;
- loff_t node = *pos;
-
- for (pgdat = pgdat_list; pgdat && node; pgdat = pgdat->pgdat_next)
- --node;
-
- return pgdat;
-}
-
-static void *frag_next(struct seq_file *m, void *arg, loff_t *pos)
-{
- pg_data_t *pgdat = (pg_data_t *)arg;
-
- (*pos)++;
- return pgdat->pgdat_next;
-}
-
-static void frag_stop(struct seq_file *m, void *arg)
-{
-}
-
-/*
- * This walks the freelist for each zone. Whilst this is slow, I'd rather
- * be slow here than slow down the fast path by keeping stats - mjbligh
- */
-static int frag_show(struct seq_file *m, void *arg)
-{
- pg_data_t *pgdat = (pg_data_t *)arg;
- struct zone *zone;
- struct zone *node_zones = pgdat->node_zones;
- unsigned long flags;
- int order;
-
- for (zone = node_zones; zone - node_zones < MAX_NR_ZONES; ++zone) {
- if (!zone->present_pages)
- continue;
-
- spin_lock_irqsave(&zone->lock, flags);
- seq_printf(m, "Node %d, zone %8s ", pgdat->node_id, zone->name);
- for (order = 0; order < MAX_ORDER; ++order) {
- unsigned long nr_bufs = 0;
- struct list_head *elem;
-
- list_for_each(elem, &(zone->free_area[order].free_list))
- ++nr_bufs;
- seq_printf(m, "%6lu ", nr_bufs);
- }
- spin_unlock_irqrestore(&zone->lock, flags);
- seq_putc(m, '\n');
- }
- return 0;
-}
-
-struct seq_operations fragmentation_op = {
- .start = frag_start,
- .next = frag_next,
- .stop = frag_stop,
- .show = frag_show,
-};
-
-static char *vmstat_text[] = {
- "nr_dirty",
- "nr_writeback",
- "nr_unstable",
- "nr_page_table_pages",
- "nr_mapped",
- "nr_slab",
-
- "pgpgin",
- "pgpgout",
- "pswpin",
- "pswpout",
- "pgalloc_high",
-
- "pgalloc_normal",
- "pgalloc_dma",
- "pgfree",
- "pgactivate",
- "pgdeactivate",
-
- "pgfault",
- "pgmajfault",
- "pgrefill_high",
- "pgrefill_normal",
- "pgrefill_dma",
-
- "pgsteal_high",
- "pgsteal_normal",
- "pgsteal_dma",
- "pgscan_kswapd_high",
- "pgscan_kswapd_normal",
-
- "pgscan_kswapd_dma",
- "pgscan_direct_high",
- "pgscan_direct_normal",
- "pgscan_direct_dma",
- "pginodesteal",
-
- "slabs_scanned",
- "kswapd_steal",
- "kswapd_inodesteal",
- "pageoutrun",
- "allocstall",
-
- "pgrotated",
-};
-
-static void *vmstat_start(struct seq_file *m, loff_t *pos)
-{
- struct page_state *ps;
-
- if (*pos >= ARRAY_SIZE(vmstat_text))
- return NULL;
-
- ps = kmalloc(sizeof(*ps), GFP_KERNEL);
- m->private = ps;
- if (!ps)
- return ERR_PTR(-ENOMEM);
- get_full_page_state(ps);
- ps->pgpgin /= 2; /* sectors -> kbytes */
- ps->pgpgout /= 2;
- return (unsigned long *)ps + *pos;
-}
-
-static void *vmstat_next(struct seq_file *m, void *arg, loff_t *pos)
-{
- (*pos)++;
- if (*pos >= ARRAY_SIZE(vmstat_text))
- return NULL;
- return (unsigned long *)m->private + *pos;
-}
-
-static int vmstat_show(struct seq_file *m, void *arg)
-{
- unsigned long *l = arg;
- unsigned long off = l - (unsigned long *)m->private;
-
- seq_printf(m, "%s %lu\n", vmstat_text[off], *l);
- return 0;
-}
-
-static void vmstat_stop(struct seq_file *m, void *arg)
-{
- kfree(m->private);
- m->private = NULL;
-}
-
-struct seq_operations vmstat_op = {
- .start = vmstat_start,
- .next = vmstat_next,
- .stop = vmstat_stop,
- .show = vmstat_show,
-};
-
-#endif /* CONFIG_PROC_FS */
-
-#ifdef CONFIG_HOTPLUG_CPU
-static int page_alloc_cpu_notify(struct notifier_block *self,
- unsigned long action, void *hcpu)
-{
- int cpu = (unsigned long)hcpu;
- long *count;
-
- if (action == CPU_DEAD) {
- /* Drain local pagecache count. */
- count = &per_cpu(nr_pagecache_local, cpu);
- atomic_add(*count, &nr_pagecache);
- *count = 0;
- local_irq_disable();
- __drain_pages(cpu);
- local_irq_enable();
- }
- return NOTIFY_OK;
-}
-#endif /* CONFIG_HOTPLUG_CPU */
-
-void __init page_alloc_init(void)
-{
- hotcpu_notifier(page_alloc_cpu_notify, 0);
-}
-
-static unsigned long higherzone_val(struct zone *z, int max_zone,
- int alloc_type)
-{
- int z_idx = zone_idx(z);
- struct zone *higherzone;
- unsigned long pages;
-
- /* there is no higher zone to get a contribution from */
- if (z_idx == MAX_NR_ZONES-1)
- return 0;
-
- higherzone = &z->zone_pgdat->node_zones[z_idx+1];
-
- /* We always start with the higher zone's protection value */
- pages = higherzone->protection[alloc_type];
-
- /*
- * We get a lower-zone-protection contribution only if there are
- * pages in the higher zone and if we're not the highest zone
- * in the current zonelist. e.g., never happens for GFP_DMA. Happens
- * only for ZONE_DMA in a GFP_KERNEL allocation and happens for ZONE_DMA
- * and ZONE_NORMAL for a GFP_HIGHMEM allocation.
- */
- if (higherzone->present_pages && z_idx < alloc_type)
- pages += higherzone->pages_low * sysctl_lower_zone_protection;
-
- return pages;
-}
-
-/*
- * setup_per_zone_protection - called whenver min_free_kbytes or
- * sysctl_lower_zone_protection changes. Ensures that each zone
- * has a correct pages_protected value, so an adequate number of
- * pages are left in the zone after a successful __alloc_pages().
- *
- * This algorithm is way confusing. I tries to keep the same behavior
- * as we had with the incremental min iterative algorithm.
- */
-static void setup_per_zone_protection(void)
-{
- struct pglist_data *pgdat;
- struct zone *zones, *zone;
- int max_zone;
- int i, j;
-
- for_each_pgdat(pgdat) {
- zones = pgdat->node_zones;
-
- for (i = 0, max_zone = 0; i < MAX_NR_ZONES; i++)
- if (zones[i].present_pages)
- max_zone = i;
-
- /*
- * For each of the different allocation types:
- * GFP_DMA -> GFP_KERNEL -> GFP_HIGHMEM
- */
- for (i = 0; i < MAX_NR_ZONES; i++) {
- /*
- * For each of the zones:
- * ZONE_HIGHMEM -> ZONE_NORMAL -> ZONE_DMA
- */
- for (j = MAX_NR_ZONES-1; j >= 0; j--) {
- zone = &zones[j];
-
- /*
- * We never protect zones that don't have memory
- * in them (j>max_zone) or zones that aren't in
- * the zonelists for a certain type of
- * allocation (j>i). We have to assign these to
- * zero because the lower zones take
- * contributions from the higher zones.
- */
- if (j > max_zone || j > i) {
- zone->protection[i] = 0;
- continue;
- }
- /*
- * The contribution of the next higher zone
- */
- zone->protection[i] = higherzone_val(zone,
- max_zone, i);
- zone->protection[i] += zone->pages_low;
- }
- }
- }
-}
-
-/*
- * setup_per_zone_pages_min - called when min_free_kbytes changes. Ensures
- * that the pages_{min,low,high} values for each zone are set correctly
- * with respect to min_free_kbytes.
- */
-static void setup_per_zone_pages_min(void)
-{
- unsigned long pages_min = min_free_kbytes >> (PAGE_SHIFT - 10);
- unsigned long lowmem_pages = 0;
- struct zone *zone;
- unsigned long flags;
-
- /* Calculate total number of !ZONE_HIGHMEM pages */
- for_each_zone(zone) {
- if (!is_highmem(zone))
- lowmem_pages += zone->present_pages;
- }
-
- for_each_zone(zone) {
- spin_lock_irqsave(&zone->lru_lock, flags);
- if (is_highmem(zone)) {
- /*
- * Often, highmem doesn't need to reserve any pages.
- * But the pages_min/low/high values are also used for
- * batching up page reclaim activity so we need a
- * decent value here.
- */
- int min_pages;
-
- min_pages = zone->present_pages / 1024;
- if (min_pages < SWAP_CLUSTER_MAX)
- min_pages = SWAP_CLUSTER_MAX;
- if (min_pages > 128)
- min_pages = 128;
- zone->pages_min = min_pages;
- } else {
- /* if it's a lowmem zone, reserve a number of pages
- * proportionate to the zone's size.
- */
- zone->pages_min = (pages_min * zone->present_pages) /
- lowmem_pages;
- }
-
- zone->pages_low = zone->pages_min * 2;
- zone->pages_high = zone->pages_min * 3;
- spin_unlock_irqrestore(&zone->lru_lock, flags);
- }
-}
-
-/*
- * Initialise min_free_kbytes.
- *
- * For small machines we want it small (128k min). For large machines
- * we want it large (16MB max). But it is not linear, because network
- * bandwidth does not increase linearly with machine size. We use
- *
- * min_free_kbytes = sqrt(lowmem_kbytes)
- *
- * which yields
- *
- * 16MB: 128k
- * 32MB: 181k
- * 64MB: 256k
- * 128MB: 362k
- * 256MB: 512k
- * 512MB: 724k
- * 1024MB: 1024k
- * 2048MB: 1448k
- * 4096MB: 2048k
- * 8192MB: 2896k
- * 16384MB: 4096k
- */
-static int __init init_per_zone_pages_min(void)
-{
- unsigned long lowmem_kbytes;
-
- lowmem_kbytes = nr_free_buffer_pages() * (PAGE_SIZE >> 10);
-
- min_free_kbytes = int_sqrt(lowmem_kbytes);
- if (min_free_kbytes < 128)
- min_free_kbytes = 128;
- if (min_free_kbytes > 16384)
- min_free_kbytes = 16384;
- setup_per_zone_pages_min();
- setup_per_zone_protection();
- return 0;
-}
-module_init(init_per_zone_pages_min)
-
-/*
- * min_free_kbytes_sysctl_handler - just a wrapper around proc_dointvec() so
- * that we can call two helper functions whenever min_free_kbytes
- * changes.
- */
-int min_free_kbytes_sysctl_handler(ctl_table *table, int write,
- struct file *file, void __user *buffer, size_t *length)
-{
- proc_dointvec(table, write, file, buffer, length);
- setup_per_zone_pages_min();
- setup_per_zone_protection();
- return 0;
-}
-
-/*
- * lower_zone_protection_sysctl_handler - just a wrapper around
- * proc_dointvec() so that we can call setup_per_zone_protection()
- * whenever sysctl_lower_zone_protection changes.
- */
-int lower_zone_protection_sysctl_handler(ctl_table *table, int write,
- struct file *file, void __user *buffer, size_t *length)
-{
- proc_dointvec_minmax(table, write, file, buffer, length);
- setup_per_zone_protection();
- return 0;
-}
+++ /dev/null
-config BT_HIDP
- tristate "HIDP protocol support"
- depends on BT && BT_L2CAP
- select INPUT
- help
- HIDP (Human Interface Device Protocol) is a transport layer
- for HID reports. HIDP is required for the Bluetooth Human
- Interface Device Profile.
-
- Say Y here to compile HIDP support into the kernel or say M to
- compile it as module (hidp).
-
+++ /dev/null
-#
-# Makefile for the Linux Bluetooth HIDP layer
-#
-
-obj-$(CONFIG_BT_HIDP) += hidp.o
-
-hidp-objs := core.o sock.o
+++ /dev/null
-/*
- HIDP implementation for Linux Bluetooth stack (BlueZ).
- Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License version 2 as
- published by the Free Software Foundation;
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
- SOFTWARE IS DISCLAIMED.
-*/
-
-#include <linux/config.h>
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/skbuff.h>
-#include <linux/socket.h>
-#include <linux/ioctl.h>
-#include <linux/file.h>
-#include <linux/init.h>
-#include <net/sock.h>
-
-#include <linux/input.h>
-
-#include <net/bluetooth/bluetooth.h>
-#include <net/bluetooth/l2cap.h>
-
-#include "hidp.h"
-
-#ifndef CONFIG_BT_HIDP_DEBUG
-#undef BT_DBG
-#define BT_DBG(D...)
-#endif
-
-#define VERSION "1.0"
-
-static DECLARE_RWSEM(hidp_session_sem);
-static LIST_HEAD(hidp_session_list);
-
-static unsigned char hidp_keycode[256] = {
- 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
- 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
- 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
- 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
- 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
- 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
- 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
- 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
- 115,114, 0, 0, 0,121, 0, 89, 93,124, 92, 94, 95, 0, 0, 0,
- 122,123, 90, 91, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
- 150,158,159,128,136,177,178,176,142,152,173,140
-};
-
-static struct hidp_session *__hidp_get_session(bdaddr_t *bdaddr)
-{
- struct hidp_session *session;
- struct list_head *p;
-
- BT_DBG("");
-
- list_for_each(p, &hidp_session_list) {
- session = list_entry(p, struct hidp_session, list);
- if (!bacmp(bdaddr, &session->bdaddr))
- return session;
- }
- return NULL;
-}
-
-static void __hidp_link_session(struct hidp_session *session)
-{
- __module_get(THIS_MODULE);
- list_add(&session->list, &hidp_session_list);
-}
-
-static void __hidp_unlink_session(struct hidp_session *session)
-{
- list_del(&session->list);
- module_put(THIS_MODULE);
-}
-
-static void __hidp_copy_session(struct hidp_session *session, struct hidp_conninfo *ci)
-{
- bacpy(&ci->bdaddr, &session->bdaddr);
-
- ci->flags = session->flags;
- ci->state = session->state;
-
- ci->vendor = 0x0000;
- ci->product = 0x0000;
- ci->version = 0x0000;
- memset(ci->name, 0, 128);
-
- if (session->input) {
- ci->vendor = session->input->id.vendor;
- ci->product = session->input->id.product;
- ci->version = session->input->id.version;
- if (session->input->name)
- strncpy(ci->name, session->input->name, 128);
- else
- strncpy(ci->name, "HID Boot Device", 128);
- }
-}
-
-static int hidp_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
-{
- struct hidp_session *session = dev->private;
- struct sk_buff *skb;
- unsigned char newleds;
-
- BT_DBG("session %p hid %p data %p size %d", session, device, data, size);
-
- if (type != EV_LED)
- return -1;
-
- newleds = (!!test_bit(LED_KANA, dev->led) << 3) |
- (!!test_bit(LED_COMPOSE, dev->led) << 3) |
- (!!test_bit(LED_SCROLLL, dev->led) << 2) |
- (!!test_bit(LED_CAPSL, dev->led) << 1) |
- (!!test_bit(LED_NUML, dev->led));
-
- if (session->leds == newleds)
- return 0;
-
- session->leds = newleds;
-
- if (!(skb = alloc_skb(3, GFP_ATOMIC))) {
- BT_ERR("Can't allocate memory for new frame");
- return -ENOMEM;
- }
-
- *skb_put(skb, 1) = 0xa2;
- *skb_put(skb, 1) = 0x01;
- *skb_put(skb, 1) = newleds;
-
- skb_queue_tail(&session->intr_transmit, skb);
-
- hidp_schedule(session);
-
- return 0;
-}
-
-static void hidp_input_report(struct hidp_session *session, struct sk_buff *skb)
-{
- struct input_dev *dev = session->input;
- unsigned char *keys = session->keys;
- unsigned char *udata = skb->data + 1;
- signed char *sdata = skb->data + 1;
- int i, size = skb->len - 1;
-
- switch (skb->data[0]) {
- case 0x01: /* Keyboard report */
- for (i = 0; i < 8; i++)
- input_report_key(dev, hidp_keycode[i + 224], (udata[0] >> i) & 1);
-
- for (i = 2; i < 8; i++) {
- if (keys[i] > 3 && memscan(udata + 2, keys[i], 6) == udata + 8) {
- if (hidp_keycode[keys[i]])
- input_report_key(dev, hidp_keycode[keys[i]], 0);
- else
- BT_ERR("Unknown key (scancode %#x) released.", keys[i]);
- }
-
- if (udata[i] > 3 && memscan(keys + 2, udata[i], 6) == keys + 8) {
- if (hidp_keycode[udata[i]])
- input_report_key(dev, hidp_keycode[udata[i]], 1);
- else
- BT_ERR("Unknown key (scancode %#x) pressed.", udata[i]);
- }
- }
-
- memcpy(keys, udata, 8);
- break;
-
- case 0x02: /* Mouse report */
- input_report_key(dev, BTN_LEFT, sdata[0] & 0x01);
- input_report_key(dev, BTN_RIGHT, sdata[0] & 0x02);
- input_report_key(dev, BTN_MIDDLE, sdata[0] & 0x04);
- input_report_key(dev, BTN_SIDE, sdata[0] & 0x08);
- input_report_key(dev, BTN_EXTRA, sdata[0] & 0x10);
-
- input_report_rel(dev, REL_X, sdata[1]);
- input_report_rel(dev, REL_Y, sdata[2]);
-
- if (size > 3)
- input_report_rel(dev, REL_WHEEL, sdata[3]);
- break;
- }
-
- input_sync(dev);
-}
-
-static void hidp_idle_timeout(unsigned long arg)
-{
- struct hidp_session *session = (struct hidp_session *) arg;
-
- atomic_inc(&session->terminate);
- hidp_schedule(session);
-}
-
-static inline void hidp_set_timer(struct hidp_session *session)
-{
- if (session->idle_to > 0)
- mod_timer(&session->timer, jiffies + HZ * session->idle_to);
-}
-
-static inline void hidp_del_timer(struct hidp_session *session)
-{
- if (session->idle_to > 0)
- del_timer(&session->timer);
-}
-
-static inline void hidp_send_message(struct hidp_session *session, unsigned char hdr)
-{
- struct sk_buff *skb;
-
- BT_DBG("session %p", session);
-
- if (!(skb = alloc_skb(1, GFP_ATOMIC))) {
- BT_ERR("Can't allocate memory for message");
- return;
- }
-
- *skb_put(skb, 1) = hdr;
-
- skb_queue_tail(&session->ctrl_transmit, skb);
-
- hidp_schedule(session);
-}
-
-static inline int hidp_recv_frame(struct hidp_session *session, struct sk_buff *skb)
-{
- __u8 hdr;
-
- BT_DBG("session %p skb %p len %d", session, skb, skb->len);
-
- hdr = skb->data[0];
- skb_pull(skb, 1);
-
- if (hdr == 0xa1) {
- hidp_set_timer(session);
-
- if (session->input)
- hidp_input_report(session, skb);
- } else {
- BT_DBG("Unsupported protocol header 0x%02x", hdr);
- }
-
- kfree_skb(skb);
- return 0;
-}
-
-static int hidp_send_frame(struct socket *sock, unsigned char *data, int len)
-{
- struct iovec iv = { data, len };
- struct msghdr msg;
-
- BT_DBG("sock %p data %p len %d", sock, data, len);
-
- if (!len)
- return 0;
-
- memset(&msg, 0, sizeof(msg));
- msg.msg_iovlen = 1;
- msg.msg_iov = &iv;
-
- return sock_sendmsg(sock, &msg, len);
-}
-
-static int hidp_process_transmit(struct hidp_session *session)
-{
- struct sk_buff *skb;
-
- BT_DBG("session %p", session);
-
- while ((skb = skb_dequeue(&session->ctrl_transmit))) {
- if (hidp_send_frame(session->ctrl_sock, skb->data, skb->len) < 0) {
- skb_queue_head(&session->ctrl_transmit, skb);
- break;
- }
-
- hidp_set_timer(session);
- kfree_skb(skb);
- }
-
- while ((skb = skb_dequeue(&session->intr_transmit))) {
- if (hidp_send_frame(session->intr_sock, skb->data, skb->len) < 0) {
- skb_queue_head(&session->intr_transmit, skb);
- break;
- }
-
- hidp_set_timer(session);
- kfree_skb(skb);
- }
-
- return skb_queue_len(&session->ctrl_transmit) +
- skb_queue_len(&session->intr_transmit);
-}
-
-static int hidp_session(void *arg)
-{
- struct hidp_session *session = arg;
- struct sock *ctrl_sk = session->ctrl_sock->sk;
- struct sock *intr_sk = session->intr_sock->sk;
- struct sk_buff *skb;
- int vendor = 0x0000, product = 0x0000;
- wait_queue_t ctrl_wait, intr_wait;
- unsigned long timeo = HZ;
-
- BT_DBG("session %p", session);
-
- if (session->input) {
- vendor = session->input->id.vendor;
- product = session->input->id.product;
- }
-
- daemonize("khidpd_%04x%04x", vendor, product);
- set_user_nice(current, -15);
- current->flags |= PF_NOFREEZE;
-
- set_fs(KERNEL_DS);
-
- init_waitqueue_entry(&ctrl_wait, current);
- init_waitqueue_entry(&intr_wait, current);
- add_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
- add_wait_queue(intr_sk->sk_sleep, &intr_wait);
- while (!atomic_read(&session->terminate)) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- if (ctrl_sk->sk_state != BT_CONNECTED || intr_sk->sk_state != BT_CONNECTED)
- break;
-
- while ((skb = skb_dequeue(&ctrl_sk->sk_receive_queue))) {
- skb_orphan(skb);
- hidp_recv_frame(session, skb);
- }
-
- while ((skb = skb_dequeue(&intr_sk->sk_receive_queue))) {
- skb_orphan(skb);
- hidp_recv_frame(session, skb);
- }
-
- hidp_process_transmit(session);
-
- schedule();
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(intr_sk->sk_sleep, &intr_wait);
- remove_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
-
- down_write(&hidp_session_sem);
-
- hidp_del_timer(session);
-
- if (intr_sk->sk_state != BT_CONNECTED) {
- init_waitqueue_entry(&ctrl_wait, current);
- add_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
- while (timeo && ctrl_sk->sk_state != BT_CLOSED) {
- set_current_state(TASK_INTERRUPTIBLE);
- timeo = schedule_timeout(timeo);
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
- timeo = HZ;
- }
-
- fput(session->ctrl_sock->file);
-
- init_waitqueue_entry(&intr_wait, current);
- add_wait_queue(intr_sk->sk_sleep, &intr_wait);
- while (timeo && intr_sk->sk_state != BT_CLOSED) {
- set_current_state(TASK_INTERRUPTIBLE);
- timeo = schedule_timeout(timeo);
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(intr_sk->sk_sleep, &intr_wait);
-
- fput(session->intr_sock->file);
-
- __hidp_unlink_session(session);
-
- if (session->input) {
- input_unregister_device(session->input);
- kfree(session->input);
- }
-
- up_write(&hidp_session_sem);
-
- kfree(session);
- return 0;
-}
-
-static inline void hidp_setup_input(struct hidp_session *session, struct hidp_connadd_req *req)
-{
- struct input_dev *input = session->input;
- int i;
-
- input->private = session;
-
- input->id.bustype = BUS_BLUETOOTH;
- input->id.vendor = req->vendor;
- input->id.product = req->product;
- input->id.version = req->version;
-
- if (req->subclass & 0x40) {
- set_bit(EV_KEY, input->evbit);
- set_bit(EV_LED, input->evbit);
- set_bit(EV_REP, input->evbit);
-
- set_bit(LED_NUML, input->ledbit);
- set_bit(LED_CAPSL, input->ledbit);
- set_bit(LED_SCROLLL, input->ledbit);
- set_bit(LED_COMPOSE, input->ledbit);
- set_bit(LED_KANA, input->ledbit);
-
- for (i = 0; i < sizeof(hidp_keycode); i++)
- set_bit(hidp_keycode[i], input->keybit);
- clear_bit(0, input->keybit);
- }
-
- if (req->subclass & 0x80) {
- input->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
- input->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
- input->relbit[0] = BIT(REL_X) | BIT(REL_Y);
- input->keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
- input->relbit[0] |= BIT(REL_WHEEL);
- }
-
- input->event = hidp_input_event;
-
- input_register_device(input);
-}
-
-int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock)
-{
- struct hidp_session *session, *s;
- int err;
-
- BT_DBG("");
-
- if (bacmp(&bt_sk(ctrl_sock->sk)->src, &bt_sk(intr_sock->sk)->src) ||
- bacmp(&bt_sk(ctrl_sock->sk)->dst, &bt_sk(intr_sock->sk)->dst))
- return -ENOTUNIQ;
-
- session = kmalloc(sizeof(struct hidp_session), GFP_KERNEL);
- if (!session)
- return -ENOMEM;
- memset(session, 0, sizeof(struct hidp_session));
-
- session->input = kmalloc(sizeof(struct input_dev), GFP_KERNEL);
- if (!session->input) {
- kfree(session);
- return -ENOMEM;
- }
- memset(session->input, 0, sizeof(struct input_dev));
-
- down_write(&hidp_session_sem);
-
- s = __hidp_get_session(&bt_sk(ctrl_sock->sk)->dst);
- if (s && s->state == BT_CONNECTED) {
- err = -EEXIST;
- goto failed;
- }
-
- bacpy(&session->bdaddr, &bt_sk(ctrl_sock->sk)->dst);
-
- session->ctrl_mtu = min_t(uint, l2cap_pi(ctrl_sock->sk)->omtu, l2cap_pi(ctrl_sock->sk)->imtu);
- session->intr_mtu = min_t(uint, l2cap_pi(intr_sock->sk)->omtu, l2cap_pi(intr_sock->sk)->imtu);
-
- BT_DBG("ctrl mtu %d intr mtu %d", session->ctrl_mtu, session->intr_mtu);
-
- session->ctrl_sock = ctrl_sock;
- session->intr_sock = intr_sock;
- session->state = BT_CONNECTED;
-
- init_timer(&session->timer);
-
- session->timer.function = hidp_idle_timeout;
- session->timer.data = (unsigned long) session;
-
- skb_queue_head_init(&session->ctrl_transmit);
- skb_queue_head_init(&session->intr_transmit);
-
- session->flags = req->flags & (1 << HIDP_BLUETOOTH_VENDOR_ID);
- session->idle_to = req->idle_to;
-
- if (session->input)
- hidp_setup_input(session, req);
-
- __hidp_link_session(session);
-
- hidp_set_timer(session);
-
- err = kernel_thread(hidp_session, session, CLONE_KERNEL);
- if (err < 0)
- goto unlink;
-
- if (session->input) {
- hidp_send_message(session, 0x70);
- session->flags |= (1 << HIDP_BOOT_PROTOCOL_MODE);
-
- session->leds = 0xff;
- hidp_input_event(session->input, EV_LED, 0, 0);
- }
-
- up_write(&hidp_session_sem);
- return 0;
-
-unlink:
- hidp_del_timer(session);
-
- __hidp_unlink_session(session);
-
- if (session->input)
- input_unregister_device(session->input);
-
-failed:
- up_write(&hidp_session_sem);
-
- if (session->input)
- kfree(session->input);
-
- kfree(session);
- return err;
-}
-
-int hidp_del_connection(struct hidp_conndel_req *req)
-{
- struct hidp_session *session;
- int err = 0;
-
- BT_DBG("");
-
- down_read(&hidp_session_sem);
-
- session = __hidp_get_session(&req->bdaddr);
- if (session) {
- if (req->flags & (1 << HIDP_VIRTUAL_CABLE_UNPLUG)) {
- hidp_send_message(session, 0x15);
- } else {
- /* Flush the transmit queues */
- skb_queue_purge(&session->ctrl_transmit);
- skb_queue_purge(&session->intr_transmit);
-
- /* Kill session thread */
- atomic_inc(&session->terminate);
- hidp_schedule(session);
- }
- } else
- err = -ENOENT;
-
- up_read(&hidp_session_sem);
- return err;
-}
-
-int hidp_get_connlist(struct hidp_connlist_req *req)
-{
- struct list_head *p;
- int err = 0, n = 0;
-
- BT_DBG("");
-
- down_read(&hidp_session_sem);
-
- list_for_each(p, &hidp_session_list) {
- struct hidp_session *session;
- struct hidp_conninfo ci;
-
- session = list_entry(p, struct hidp_session, list);
-
- __hidp_copy_session(session, &ci);
-
- if (copy_to_user(req->ci, &ci, sizeof(ci))) {
- err = -EFAULT;
- break;
- }
-
- if (++n >= req->cnum)
- break;
-
- req->ci++;
- }
- req->cnum = n;
-
- up_read(&hidp_session_sem);
- return err;
-}
-
-int hidp_get_conninfo(struct hidp_conninfo *ci)
-{
- struct hidp_session *session;
- int err = 0;
-
- down_read(&hidp_session_sem);
-
- session = __hidp_get_session(&ci->bdaddr);
- if (session)
- __hidp_copy_session(session, ci);
- else
- err = -ENOENT;
-
- up_read(&hidp_session_sem);
- return err;
-}
-
-static int __init hidp_init(void)
-{
- l2cap_load();
-
- BT_INFO("HIDP (Human Interface Emulation) ver %s", VERSION);
-
- return hidp_init_sockets();
-}
-
-static void __exit hidp_exit(void)
-{
- hidp_cleanup_sockets();
-}
-
-module_init(hidp_init);
-module_exit(hidp_exit);
-
-MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
-MODULE_DESCRIPTION("Bluetooth HIDP ver " VERSION);
-MODULE_VERSION(VERSION);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("bt-proto-6");
+++ /dev/null
-/*
- HIDP implementation for Linux Bluetooth stack (BlueZ).
- Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License version 2 as
- published by the Free Software Foundation;
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
- SOFTWARE IS DISCLAIMED.
-*/
-
-#ifndef __HIDP_H
-#define __HIDP_H
-
-#include <linux/types.h>
-#include <net/bluetooth/bluetooth.h>
-
-/* HIDP ioctl defines */
-#define HIDPCONNADD _IOW('H', 200, int)
-#define HIDPCONNDEL _IOW('H', 201, int)
-#define HIDPGETCONNLIST _IOR('H', 210, int)
-#define HIDPGETCONNINFO _IOR('H', 211, int)
-
-#define HIDP_VIRTUAL_CABLE_UNPLUG 0
-#define HIDP_BOOT_PROTOCOL_MODE 1
-#define HIDP_BLUETOOTH_VENDOR_ID 9
-
-struct hidp_connadd_req {
- int ctrl_sock; // Connected control socket
- int intr_sock; // Connteted interrupt socket
- __u16 parser;
- __u16 rd_size;
- __u8 *rd_data;
- __u8 country;
- __u8 subclass;
- __u16 vendor;
- __u16 product;
- __u16 version;
- __u32 flags;
- __u32 idle_to;
- char name[128];
-};
-
-struct hidp_conndel_req {
- bdaddr_t bdaddr;
- __u32 flags;
-};
-
-struct hidp_conninfo {
- bdaddr_t bdaddr;
- __u32 flags;
- __u16 state;
- __u16 vendor;
- __u16 product;
- __u16 version;
- char name[128];
-};
-
-struct hidp_connlist_req {
- __u32 cnum;
- struct hidp_conninfo __user *ci;
-};
-
-int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock);
-int hidp_del_connection(struct hidp_conndel_req *req);
-int hidp_get_connlist(struct hidp_connlist_req *req);
-int hidp_get_conninfo(struct hidp_conninfo *ci);
-
-/* HIDP session defines */
-struct hidp_session {
- struct list_head list;
-
- struct socket *ctrl_sock;
- struct socket *intr_sock;
-
- bdaddr_t bdaddr;
-
- unsigned long state;
- unsigned long flags;
- unsigned long idle_to;
-
- uint ctrl_mtu;
- uint intr_mtu;
-
- atomic_t terminate;
-
- unsigned char keys[8];
- unsigned char leds;
-
- struct input_dev *input;
-
- struct timer_list timer;
-
- struct sk_buff_head ctrl_transmit;
- struct sk_buff_head intr_transmit;
-};
-
-static inline void hidp_schedule(struct hidp_session *session)
-{
- struct sock *ctrl_sk = session->ctrl_sock->sk;
- struct sock *intr_sk = session->intr_sock->sk;
-
- wake_up_interruptible(ctrl_sk->sk_sleep);
- wake_up_interruptible(intr_sk->sk_sleep);
-}
-
-/* HIDP init defines */
-extern int __init hidp_init_sockets(void);
-extern void __exit hidp_cleanup_sockets(void);
-
-#endif /* __HIDP_H */
+++ /dev/null
-/*
- HIDP implementation for Linux Bluetooth stack (BlueZ).
- Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License version 2 as
- published by the Free Software Foundation;
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
- SOFTWARE IS DISCLAIMED.
-*/
-
-#include <linux/config.h>
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/skbuff.h>
-#include <linux/socket.h>
-#include <linux/ioctl.h>
-#include <linux/file.h>
-#include <linux/init.h>
-#include <net/sock.h>
-
-#include "hidp.h"
-
-#ifndef CONFIG_BT_HIDP_DEBUG
-#undef BT_DBG
-#define BT_DBG(D...)
-#endif
-
-static int hidp_sock_release(struct socket *sock)
-{
- struct sock *sk = sock->sk;
-
- BT_DBG("sock %p sk %p", sock, sk);
-
- if (!sk)
- return 0;
-
- sock_orphan(sk);
- sock_put(sk);
-
- return 0;
-}
-
-static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
-{
- void __user *argp = (void __user *) arg;
- struct hidp_connadd_req ca;
- struct hidp_conndel_req cd;
- struct hidp_connlist_req cl;
- struct hidp_conninfo ci;
- struct socket *csock;
- struct socket *isock;
- int err;
-
- BT_DBG("cmd %x arg %lx", cmd, arg);
-
- switch (cmd) {
- case HIDPCONNADD:
- if (!capable(CAP_NET_ADMIN))
- return -EACCES;
-
- if (copy_from_user(&ca, argp, sizeof(ca)))
- return -EFAULT;
-
- csock = sockfd_lookup(ca.ctrl_sock, &err);
- if (!csock)
- return err;
-
- isock = sockfd_lookup(ca.intr_sock, &err);
- if (!isock) {
- fput(csock->file);
- return err;
- }
-
- if (csock->sk->sk_state != BT_CONNECTED || isock->sk->sk_state != BT_CONNECTED) {
- fput(csock->file);
- fput(isock->file);
- return -EBADFD;
- }
-
- err = hidp_add_connection(&ca, csock, isock);
- if (!err) {
- if (copy_to_user(argp, &ca, sizeof(ca)))
- err = -EFAULT;
- } else {
- fput(csock->file);
- fput(isock->file);
- }
-
- return err;
-
- case HIDPCONNDEL:
- if (!capable(CAP_NET_ADMIN))
- return -EACCES;
-
- if (copy_from_user(&cd, argp, sizeof(cd)))
- return -EFAULT;
-
- return hidp_del_connection(&cd);
-
- case HIDPGETCONNLIST:
- if (copy_from_user(&cl, argp, sizeof(cl)))
- return -EFAULT;
-
- if (cl.cnum <= 0)
- return -EINVAL;
-
- err = hidp_get_connlist(&cl);
- if (!err && copy_to_user(argp, &cl, sizeof(cl)))
- return -EFAULT;
-
- return err;
-
- case HIDPGETCONNINFO:
- if (copy_from_user(&ci, argp, sizeof(ci)))
- return -EFAULT;
-
- err = hidp_get_conninfo(&ci);
- if (!err && copy_to_user(argp, &ci, sizeof(ci)))
- return -EFAULT;
-
- return err;
- }
-
- return -EINVAL;
-}
-
-static struct proto_ops hidp_sock_ops = {
- .family = PF_BLUETOOTH,
- .owner = THIS_MODULE,
- .release = hidp_sock_release,
- .ioctl = hidp_sock_ioctl,
- .bind = sock_no_bind,
- .getname = sock_no_getname,
- .sendmsg = sock_no_sendmsg,
- .recvmsg = sock_no_recvmsg,
- .poll = sock_no_poll,
- .listen = sock_no_listen,
- .shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
- .connect = sock_no_connect,
- .socketpair = sock_no_socketpair,
- .accept = sock_no_accept,
- .mmap = sock_no_mmap
-};
-
-static int hidp_sock_create(struct socket *sock, int protocol)
-{
- struct sock *sk;
-
- BT_DBG("sock %p", sock);
-
- if (sock->type != SOCK_RAW)
- return -ESOCKTNOSUPPORT;
-
- if (!(sk = bt_sock_alloc(sock, PF_BLUETOOTH, 0, GFP_KERNEL)))
- return -ENOMEM;
-
- sk_set_owner(sk, THIS_MODULE);
-
- sock->ops = &hidp_sock_ops;
-
- sock->state = SS_UNCONNECTED;
-
- sk->sk_destruct = NULL;
- sk->sk_protocol = protocol;
-
- return 0;
-}
-
-static struct net_proto_family hidp_sock_family_ops = {
- .family = PF_BLUETOOTH,
- .owner = THIS_MODULE,
- .create = hidp_sock_create
-};
-
-int __init hidp_init_sockets(void)
-{
- int err;
-
- err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
- if (err < 0)
- BT_ERR("Can't register HIDP socket");
-
- return err;
-}
-
-void __exit hidp_cleanup_sockets(void)
-{
- if (bt_sock_unregister(BTPROTO_HIDP) < 0)
- BT_ERR("Can't unregister HIDP socket");
-}
+++ /dev/null
-/*
- BlueZ - Bluetooth protocol stack for Linux
- Copyright (C) 2000-2001 Qualcomm Incorporated
-
- Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License version 2 as
- published by the Free Software Foundation;
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
- SOFTWARE IS DISCLAIMED.
-*/
-
-/*
- * Bluetooth symbols.
- *
- * $Id: syms.c,v 1.1 2002/03/08 21:06:59 maxk Exp $
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/socket.h>
-
-#include <net/bluetooth/bluetooth.h>
-#include <net/bluetooth/hci_core.h>
-
-/* HCI Core */
-EXPORT_SYMBOL(hci_alloc_dev);
-EXPORT_SYMBOL(hci_free_dev);
-EXPORT_SYMBOL(hci_register_dev);
-EXPORT_SYMBOL(hci_unregister_dev);
-EXPORT_SYMBOL(hci_suspend_dev);
-EXPORT_SYMBOL(hci_resume_dev);
-
-EXPORT_SYMBOL(hci_register_proto);
-EXPORT_SYMBOL(hci_unregister_proto);
-
-EXPORT_SYMBOL(hci_get_route);
-EXPORT_SYMBOL(hci_connect);
-EXPORT_SYMBOL(hci_dev_get);
-EXPORT_SYMBOL(hci_conn_auth);
-EXPORT_SYMBOL(hci_conn_encrypt);
-
-EXPORT_SYMBOL(hci_send_acl);
-EXPORT_SYMBOL(hci_send_sco);
-EXPORT_SYMBOL(hci_send_cmd);
-EXPORT_SYMBOL(hci_si_event);
-
-/* Bluetooth lib */
-EXPORT_SYMBOL(bt_dump);
-EXPORT_SYMBOL(baswap);
-EXPORT_SYMBOL(batostr);
-EXPORT_SYMBOL(bt_err);
-
-/* Bluetooth sockets */
-EXPORT_SYMBOL(bt_sock_register);
-EXPORT_SYMBOL(bt_sock_unregister);
-EXPORT_SYMBOL(bt_sock_alloc);
-EXPORT_SYMBOL(bt_sock_link);
-EXPORT_SYMBOL(bt_sock_unlink);
-EXPORT_SYMBOL(bt_sock_recvmsg);
-EXPORT_SYMBOL(bt_sock_poll);
-EXPORT_SYMBOL(bt_accept_enqueue);
-EXPORT_SYMBOL(bt_accept_dequeue);
-EXPORT_SYMBOL(bt_sock_wait_state);
-
-EXPORT_SYMBOL(proc_bt);
+++ /dev/null
-/*
- * SUCS NET3:
- *
- * Generic stream handling routines. These are generic for most
- * protocols. Even IP. Tonight 8-).
- * This is used because TCP, LLC (others too) layer all have mostly
- * identical sendmsg() and recvmsg() code.
- * So we (will) share it here.
- *
- * Authors: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- * (from old tcp.c code)
- * Alan Cox <alan@redhat.com> (Borrowed comments 8-))
- */
-
-#include <linux/module.h>
-#include <linux/net.h>
-#include <linux/signal.h>
-#include <linux/wait.h>
-#include <net/sock.h>
-
-/**
- * sk_stream_write_space - stream socket write_space callback.
- * sk - socket
- *
- * FIXME: write proper description
- */
-void sk_stream_write_space(struct sock *sk)
-{
- struct socket *sock = sk->sk_socket;
-
- if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk) && sock) {
- clear_bit(SOCK_NOSPACE, &sock->flags);
-
- if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
- wake_up_interruptible(sk->sk_sleep);
- if (sock->fasync_list && !(sk->sk_shutdown & SEND_SHUTDOWN))
- sock_wake_async(sock, 2, POLL_OUT);
- }
-}
-
-EXPORT_SYMBOL(sk_stream_write_space);
+++ /dev/null
-/*
- * common UDP/RAW code
- * Linux INET implementation
- *
- * Authors:
- * Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/in.h>
-#include <net/sock.h>
-#include <net/tcp.h>
-#include <net/route.h>
-
-int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
-{
- struct inet_opt *inet = inet_sk(sk);
- struct sockaddr_in *usin = (struct sockaddr_in *) uaddr;
- struct rtable *rt;
- u32 saddr;
- int oif;
- int err;
-
-
- if (addr_len < sizeof(*usin))
- return -EINVAL;
-
- if (usin->sin_family != AF_INET)
- return -EAFNOSUPPORT;
-
- sk_dst_reset(sk);
-
- oif = sk->sk_bound_dev_if;
- saddr = inet->saddr;
- if (MULTICAST(usin->sin_addr.s_addr)) {
- if (!oif)
- oif = inet->mc_index;
- if (!saddr)
- saddr = inet->mc_addr;
- }
- err = ip_route_connect(&rt, usin->sin_addr.s_addr, saddr,
- RT_CONN_FLAGS(sk), oif,
- sk->sk_protocol,
- inet->sport, usin->sin_port, sk);
- if (err)
- return err;
- if ((rt->rt_flags & RTCF_BROADCAST) && !sock_flag(sk, SOCK_BROADCAST)) {
- ip_rt_put(rt);
- return -EACCES;
- }
- if (!inet->saddr)
- inet->saddr = rt->rt_src; /* Update source address */
- if (!inet->rcv_saddr)
- inet->rcv_saddr = rt->rt_src;
- inet->daddr = rt->rt_dst;
- inet->dport = usin->sin_port;
- sk->sk_state = TCP_ESTABLISHED;
- inet->id = jiffies;
-
- sk_dst_set(sk, &rt->u.dst);
- return(0);
-}
-
-EXPORT_SYMBOL(ip4_datagram_connect);
-
+++ /dev/null
-/*
- * iptables module to match inet_addr_type() of an ip.
- *
- * Copyright (c) 2004 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/ip.h>
-#include <net/route.h>
-
-#include <linux/netfilter_ipv4/ipt_addrtype.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_DESCRIPTION("iptables addrtype match");
-
-static inline int match_type(u_int32_t addr, u_int16_t mask)
-{
- return !!(mask & (1 << inet_addr_type(addr)));
-}
-
-static int match(const struct sk_buff *skb, const struct net_device *in,
- const struct net_device *out, const void *matchinfo,
- int offset, int *hotdrop)
-{
- const struct ipt_addrtype_info *info = matchinfo;
- const struct iphdr *iph = skb->nh.iph;
- int ret = 1;
-
- if (info->source)
- ret &= match_type(iph->saddr, info->source)^info->invert_source;
- if (info->dest)
- ret &= match_type(iph->daddr, info->dest)^info->invert_dest;
-
- return ret;
-}
-
-static int checkentry(const char *tablename, const struct ipt_ip *ip,
- void *matchinfo, unsigned int matchsize,
- unsigned int hook_mask)
-{
- if (matchsize != IPT_ALIGN(sizeof(struct ipt_addrtype_info))) {
- printk(KERN_ERR "ipt_addrtype: invalid size (%u != %Zu)\n.",
- matchsize, IPT_ALIGN(sizeof(struct ipt_addrtype_info)));
- return 0;
- }
-
- return 1;
-}
-
-static struct ipt_match addrtype_match = {
- .name = "addrtype",
- .match = match,
- .checkentry = checkentry,
- .me = THIS_MODULE
-};
-
-static int __init init(void)
-{
- return ipt_register_match(&addrtype_match);
-}
-
-static void __exit fini(void)
-{
- ipt_unregister_match(&addrtype_match);
-}
-
-module_init(init);
-module_exit(fini);
+++ /dev/null
-/* IP tables module for matching the routing realm
- *
- * $Id: ipt_realm.c,v 1.3 2004/03/05 13:25:40 laforge Exp $
- *
- * (C) 2003 by Sampsa Ranta <sampsa@netsonic.fi>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <net/route.h>
-
-#include <linux/netfilter_ipv4/ipt_realm.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-
-MODULE_AUTHOR("Sampsa Ranta <sampsa@netsonic.fi>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("iptables realm match");
-
-static int
-match(const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const void *matchinfo,
- int offset,
- int *hotdrop)
-{
- const struct ipt_realm_info *info = matchinfo;
- struct dst_entry *dst = skb->dst;
-
- return (info->id == (dst->tclassid & info->mask)) ^ info->invert;
-}
-
-static int check(const char *tablename,
- const struct ipt_ip *ip,
- void *matchinfo,
- unsigned int matchsize,
- unsigned int hook_mask)
-{
- if (hook_mask
- & ~((1 << NF_IP_POST_ROUTING) | (1 << NF_IP_FORWARD) |
- (1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_LOCAL_IN))) {
- printk("ipt_realm: only valid for POST_ROUTING, LOCAL_OUT, "
- "LOCAL_IN or FORWARD.\n");
- return 0;
- }
- if (matchsize != IPT_ALIGN(sizeof(struct ipt_realm_info))) {
- printk("ipt_realm: invalid matchsize.\n");
- return 0;
- }
- return 1;
-}
-
-static struct ipt_match realm_match = {
- .name = "realm",
- .match = match,
- .checkentry = check,
- .me = THIS_MODULE
-};
-
-static int __init init(void)
-{
- return ipt_register_match(&realm_match);
-}
-
-static void __exit fini(void)
-{
- ipt_unregister_match(&realm_match);
-}
-
-module_init(init);
-module_exit(fini);
+++ /dev/null
-/*
- * xfrm4_output.c - Common IPsec encapsulation code for IPv4.
- * Copyright (c) 2004 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <net/inet_ecn.h>
-#include <net/ip.h>
-#include <net/xfrm.h>
-
-/* Add encapsulation header.
- *
- * In transport mode, the IP header will be moved forward to make space
- * for the encapsulation header.
- *
- * In tunnel mode, the top IP header will be constructed per RFC 2401.
- * The following fields in it shall be filled in by x->type->output:
- * tot_len
- * check
- *
- * On exit, skb->h will be set to the start of the payload to be processed
- * by x->type->output and skb->nh will be set to the top IP header.
- */
-static void xfrm4_encap(struct sk_buff *skb)
-{
- struct dst_entry *dst = skb->dst;
- struct xfrm_state *x = dst->xfrm;
- struct iphdr *iph, *top_iph;
-
- iph = skb->nh.iph;
- skb->h.ipiph = iph;
-
- skb->nh.raw = skb_push(skb, x->props.header_len);
- top_iph = skb->nh.iph;
-
- if (!x->props.mode) {
- skb->h.raw += iph->ihl*4;
- memmove(top_iph, iph, iph->ihl*4);
- return;
- }
-
- top_iph->ihl = 5;
- top_iph->version = 4;
-
- /* DS disclosed */
- top_iph->tos = INET_ECN_encapsulate(iph->tos, iph->tos);
- if (x->props.flags & XFRM_STATE_NOECN)
- IP_ECN_clear(top_iph);
-
- top_iph->frag_off = iph->frag_off & htons(IP_DF);
- if (!top_iph->frag_off)
- __ip_select_ident(top_iph, dst, 0);
-
- /* TTL disclosed */
- top_iph->ttl = iph->ttl;
-
- top_iph->saddr = x->props.saddr.a4;
- top_iph->daddr = x->id.daddr.a4;
- top_iph->protocol = IPPROTO_IPIP;
-
- memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options));
-}
-
-int xfrm4_output(struct sk_buff **pskb)
-{
- struct sk_buff *skb = *pskb;
- struct dst_entry *dst = skb->dst;
- struct xfrm_state *x = dst->xfrm;
- int err;
-
- if (skb->ip_summed == CHECKSUM_HW) {
- err = skb_checksum_help(pskb, 0);
- skb = *pskb;
- if (err)
- goto error_nolock;
- }
-
- spin_lock_bh(&x->lock);
- err = xfrm_state_check(x, skb);
- if (err)
- goto error;
-
- if (x->props.mode) {
- err = xfrm4_tunnel_check_size(skb);
- if (err)
- goto error;
- }
-
- xfrm4_encap(skb);
-
- err = x->type->output(pskb);
- skb = *pskb;
- if (err)
- goto error;
-
- x->curlft.bytes += skb->len;
- x->curlft.packets++;
-
- spin_unlock_bh(&x->lock);
-
- if (!(skb->dst = dst_pop(dst))) {
- err = -EHOSTUNREACH;
- goto error_nolock;
- }
- err = NET_XMIT_BYPASS;
-
-out_exit:
- return err;
-error:
- spin_unlock_bh(&x->lock);
-error_nolock:
- kfree_skb(skb);
- goto out_exit;
-}
+++ /dev/null
-/*
- * xfrm6_output.c - Common IPsec encapsulation code for IPv6.
- * Copyright (C) 2002 USAGI/WIDE Project
- * Copyright (c) 2004 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/icmpv6.h>
-#include <net/inet_ecn.h>
-#include <net/ipv6.h>
-#include <net/xfrm.h>
-
-/* Add encapsulation header.
- *
- * In transport mode, the IP header and mutable extension headers will be moved
- * forward to make space for the encapsulation header.
- *
- * In tunnel mode, the top IP header will be constructed per RFC 2401.
- * The following fields in it shall be filled in by x->type->output:
- * payload_len
- *
- * On exit, skb->h will be set to the start of the encapsulation header to be
- * filled in by x->type->output and skb->nh will be set to the nextheader field
- * of the extension header directly preceding the encapsulation header, or in
- * its absence, that of the top IP header. The value of skb->data will always
- * point to the top IP header.
- */
-static void xfrm6_encap(struct sk_buff *skb)
-{
- struct dst_entry *dst = skb->dst;
- struct xfrm_state *x = dst->xfrm;
- struct ipv6hdr *iph, *top_iph;
-
- skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
-
- if (!x->props.mode) {
- u8 *prevhdr;
- int hdr_len;
-
- hdr_len = ip6_find_1stfragopt(skb, &prevhdr);
- skb->nh.raw = prevhdr - x->props.header_len;
- skb->h.raw = skb->data + hdr_len;
- memmove(skb->data, iph, hdr_len);
- return;
- }
-
- skb->nh.raw = skb->data;
- top_iph = skb->nh.ipv6h;
- skb->nh.raw = &top_iph->nexthdr;
- skb->h.ipv6h = top_iph + 1;
-
- top_iph->version = 6;
- top_iph->priority = iph->priority;
- if (x->props.flags & XFRM_STATE_NOECN)
- IP6_ECN_clear(top_iph);
- top_iph->flow_lbl[0] = iph->flow_lbl[0];
- top_iph->flow_lbl[1] = iph->flow_lbl[1];
- top_iph->flow_lbl[2] = iph->flow_lbl[2];
- top_iph->nexthdr = IPPROTO_IPV6;
- top_iph->hop_limit = iph->hop_limit;
- ipv6_addr_copy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr);
- ipv6_addr_copy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr);
-}
-
-static int xfrm6_tunnel_check_size(struct sk_buff *skb)
-{
- int mtu, ret = 0;
- struct dst_entry *dst = skb->dst;
-
- mtu = dst_pmtu(dst) - sizeof(struct ipv6hdr);
- if (mtu < IPV6_MIN_MTU)
- mtu = IPV6_MIN_MTU;
-
- if (skb->len > mtu) {
- icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
- ret = -EMSGSIZE;
- }
-
- return ret;
-}
-
-int xfrm6_output(struct sk_buff **pskb)
-{
- struct sk_buff *skb = *pskb;
- struct dst_entry *dst = skb->dst;
- struct xfrm_state *x = dst->xfrm;
- int err;
-
- if (skb->ip_summed == CHECKSUM_HW) {
- err = skb_checksum_help(pskb, 0);
- skb = *pskb;
- if (err)
- goto error_nolock;
- }
-
- spin_lock_bh(&x->lock);
- err = xfrm_state_check(x, skb);
- if (err)
- goto error;
-
- if (x->props.mode) {
- err = xfrm6_tunnel_check_size(skb);
- if (err)
- goto error;
- }
-
- xfrm6_encap(skb);
-
- err = x->type->output(pskb);
- skb = *pskb;
- if (err)
- goto error;
-
- x->curlft.bytes += skb->len;
- x->curlft.packets++;
-
- spin_unlock_bh(&x->lock);
-
- skb->nh.raw = skb->data;
-
- if (!(skb->dst = dst_pop(dst))) {
- err = -EHOSTUNREACH;
- goto error_nolock;
- }
- err = NET_XMIT_BYPASS;
-
-out_exit:
- return err;
-error:
- spin_unlock_bh(&x->lock);
-error_nolock:
- kfree_skb(skb);
- goto out_exit;
-}
+++ /dev/null
-/*
- * Copyright (C)2003,2004 USAGI/WIDE Project
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Authors Mitsuru KANDA <mk@linux-ipv6.org>
- * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
- *
- * Based on net/ipv4/xfrm4_tunnel.c
- *
- */
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/xfrm.h>
-#include <linux/list.h>
-#include <net/ip.h>
-#include <net/xfrm.h>
-#include <net/icmp.h>
-#include <net/ipv6.h>
-#include <linux/ipv6.h>
-#include <linux/icmpv6.h>
-
-#ifdef CONFIG_IPV6_XFRM6_TUNNEL_DEBUG
-# define X6TDEBUG 3
-#else
-# define X6TDEBUG 1
-#endif
-
-#define X6TPRINTK(fmt, args...) printk(fmt, ## args)
-#define X6TNOPRINTK(fmt, args...) do { ; } while(0)
-
-#if X6TDEBUG >= 1
-# define X6TPRINTK1 X6TPRINTK
-#else
-# define X6TPRINTK1 X6TNOPRINTK
-#endif
-
-#if X6TDEBUG >= 3
-# define X6TPRINTK3 X6TPRINTK
-#else
-# define X6TPRINTK3 X6TNOPRINTK
-#endif
-
-/*
- * xfrm_tunnel_spi things are for allocating unique id ("spi")
- * per xfrm_address_t.
- */
-struct xfrm6_tunnel_spi {
- struct hlist_node list_byaddr;
- struct hlist_node list_byspi;
- xfrm_address_t addr;
- u32 spi;
- atomic_t refcnt;
-#ifdef XFRM6_TUNNEL_SPI_MAGIC
- u32 magic;
-#endif
-};
-
-#ifdef CONFIG_IPV6_XFRM6_TUNNEL_DEBUG
-# define XFRM6_TUNNEL_SPI_MAGIC 0xdeadbeef
-#endif
-
-static rwlock_t xfrm6_tunnel_spi_lock = RW_LOCK_UNLOCKED;
-
-static u32 xfrm6_tunnel_spi;
-
-#define XFRM6_TUNNEL_SPI_MIN 1
-#define XFRM6_TUNNEL_SPI_MAX 0xffffffff
-
-static kmem_cache_t *xfrm6_tunnel_spi_kmem;
-
-#define XFRM6_TUNNEL_SPI_BYADDR_HSIZE 256
-#define XFRM6_TUNNEL_SPI_BYSPI_HSIZE 256
-
-static struct hlist_head xfrm6_tunnel_spi_byaddr[XFRM6_TUNNEL_SPI_BYADDR_HSIZE];
-static struct hlist_head xfrm6_tunnel_spi_byspi[XFRM6_TUNNEL_SPI_BYSPI_HSIZE];
-
-#ifdef XFRM6_TUNNEL_SPI_MAGIC
-static int x6spi_check_magic(const struct xfrm6_tunnel_spi *x6spi,
- const char *name)
-{
- if (unlikely(x6spi->magic != XFRM6_TUNNEL_SPI_MAGIC)) {
- X6TPRINTK3(KERN_DEBUG "%s(): x6spi object "
- "at %p has corrupted magic %08x "
- "(should be %08x)\n",
- name, x6spi, x6spi->magic, XFRM6_TUNNEL_SPI_MAGIC);
- return -1;
- }
- return 0;
-}
-#else
-static int inline x6spi_check_magic(const struct xfrm6_tunnel_spi *x6spi,
- const char *name)
-{
- return 0;
-}
-#endif
-
-#define X6SPI_CHECK_MAGIC(x6spi) x6spi_check_magic((x6spi), __FUNCTION__)
-
-
-static unsigned inline xfrm6_tunnel_spi_hash_byaddr(xfrm_address_t *addr)
-{
- unsigned h;
-
- X6TPRINTK3(KERN_DEBUG "%s(addr=%p)\n", __FUNCTION__, addr);
-
- h = addr->a6[0] ^ addr->a6[1] ^ addr->a6[2] ^ addr->a6[3];
- h ^= h >> 16;
- h ^= h >> 8;
- h &= XFRM6_TUNNEL_SPI_BYADDR_HSIZE - 1;
-
- X6TPRINTK3(KERN_DEBUG "%s() = %u\n", __FUNCTION__, h);
-
- return h;
-}
-
-static unsigned inline xfrm6_tunnel_spi_hash_byspi(u32 spi)
-{
- return spi % XFRM6_TUNNEL_SPI_BYSPI_HSIZE;
-}
-
-
-static int xfrm6_tunnel_spi_init(void)
-{
- int i;
-
- X6TPRINTK3(KERN_DEBUG "%s()\n", __FUNCTION__);
-
- xfrm6_tunnel_spi = 0;
- xfrm6_tunnel_spi_kmem = kmem_cache_create("xfrm6_tunnel_spi",
- sizeof(struct xfrm6_tunnel_spi),
- 0, SLAB_HWCACHE_ALIGN,
- NULL, NULL);
- if (!xfrm6_tunnel_spi_kmem) {
- X6TPRINTK1(KERN_ERR
- "%s(): failed to allocate xfrm6_tunnel_spi_kmem\n",
- __FUNCTION__);
- return -ENOMEM;
- }
-
- for (i = 0; i < XFRM6_TUNNEL_SPI_BYADDR_HSIZE; i++)
- INIT_HLIST_HEAD(&xfrm6_tunnel_spi_byaddr[i]);
- for (i = 0; i < XFRM6_TUNNEL_SPI_BYSPI_HSIZE; i++)
- INIT_HLIST_HEAD(&xfrm6_tunnel_spi_byspi[i]);
- return 0;
-}
-
-static void xfrm6_tunnel_spi_fini(void)
-{
- int i;
-
- X6TPRINTK3(KERN_DEBUG "%s()\n", __FUNCTION__);
-
- for (i = 0; i < XFRM6_TUNNEL_SPI_BYADDR_HSIZE; i++) {
- if (!hlist_empty(&xfrm6_tunnel_spi_byaddr[i]))
- goto err;
- }
- for (i = 0; i < XFRM6_TUNNEL_SPI_BYSPI_HSIZE; i++) {
- if (!hlist_empty(&xfrm6_tunnel_spi_byspi[i]))
- goto err;
- }
- kmem_cache_destroy(xfrm6_tunnel_spi_kmem);
- xfrm6_tunnel_spi_kmem = NULL;
- return;
-err:
- X6TPRINTK1(KERN_ERR "%s(): table is not empty\n", __FUNCTION__);
- return;
-}
-
-static struct xfrm6_tunnel_spi *__xfrm6_tunnel_spi_lookup(xfrm_address_t *saddr)
-{
- struct xfrm6_tunnel_spi *x6spi;
- struct hlist_node *pos;
-
- X6TPRINTK3(KERN_DEBUG "%s(saddr=%p)\n", __FUNCTION__, saddr);
-
- hlist_for_each_entry(x6spi, pos,
- &xfrm6_tunnel_spi_byaddr[xfrm6_tunnel_spi_hash_byaddr(saddr)],
- list_byaddr) {
- if (memcmp(&x6spi->addr, saddr, sizeof(x6spi->addr)) == 0) {
- X6SPI_CHECK_MAGIC(x6spi);
- X6TPRINTK3(KERN_DEBUG "%s() = %p(%u)\n", __FUNCTION__, x6spi, x6spi->spi);
- return x6spi;
- }
- }
-
- X6TPRINTK3(KERN_DEBUG "%s() = NULL(0)\n", __FUNCTION__);
- return NULL;
-}
-
-u32 xfrm6_tunnel_spi_lookup(xfrm_address_t *saddr)
-{
- struct xfrm6_tunnel_spi *x6spi;
- u32 spi;
-
- X6TPRINTK3(KERN_DEBUG "%s(saddr=%p)\n", __FUNCTION__, saddr);
-
- read_lock_bh(&xfrm6_tunnel_spi_lock);
- x6spi = __xfrm6_tunnel_spi_lookup(saddr);
- spi = x6spi ? x6spi->spi : 0;
- read_unlock_bh(&xfrm6_tunnel_spi_lock);
- return spi;
-}
-
-EXPORT_SYMBOL(xfrm6_tunnel_spi_lookup);
-
-static u32 __xfrm6_tunnel_alloc_spi(xfrm_address_t *saddr)
-{
- u32 spi;
- struct xfrm6_tunnel_spi *x6spi;
- struct hlist_node *pos;
- unsigned index;
-
- X6TPRINTK3(KERN_DEBUG "%s(saddr=%p)\n", __FUNCTION__, saddr);
-
- if (xfrm6_tunnel_spi < XFRM6_TUNNEL_SPI_MIN ||
- xfrm6_tunnel_spi >= XFRM6_TUNNEL_SPI_MAX)
- xfrm6_tunnel_spi = XFRM6_TUNNEL_SPI_MIN;
- else
- xfrm6_tunnel_spi++;
-
- for (spi = xfrm6_tunnel_spi; spi <= XFRM6_TUNNEL_SPI_MAX; spi++) {
- index = xfrm6_tunnel_spi_hash_byspi(spi);
- hlist_for_each_entry(x6spi, pos,
- &xfrm6_tunnel_spi_byspi[index],
- list_byspi) {
- if (x6spi->spi == spi)
- goto try_next_1;
- }
- xfrm6_tunnel_spi = spi;
- goto alloc_spi;
-try_next_1:;
- }
- for (spi = XFRM6_TUNNEL_SPI_MIN; spi < xfrm6_tunnel_spi; spi++) {
- index = xfrm6_tunnel_spi_hash_byspi(spi);
- hlist_for_each_entry(x6spi, pos,
- &xfrm6_tunnel_spi_byspi[index],
- list_byspi) {
- if (x6spi->spi == spi)
- goto try_next_2;
- }
- xfrm6_tunnel_spi = spi;
- goto alloc_spi;
-try_next_2:;
- }
- spi = 0;
- goto out;
-alloc_spi:
- X6TPRINTK3(KERN_DEBUG "%s(): allocate new spi for "
- "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
- __FUNCTION__,
- NIP6(*(struct in6_addr *)saddr));
- x6spi = kmem_cache_alloc(xfrm6_tunnel_spi_kmem, SLAB_ATOMIC);
- if (!x6spi) {
- X6TPRINTK1(KERN_ERR "%s(): kmem_cache_alloc() failed\n",
- __FUNCTION__);
- goto out;
- }
-#ifdef XFRM6_TUNNEL_SPI_MAGIC
- x6spi->magic = XFRM6_TUNNEL_SPI_MAGIC;
-#endif
- memcpy(&x6spi->addr, saddr, sizeof(x6spi->addr));
- x6spi->spi = spi;
- atomic_set(&x6spi->refcnt, 1);
-
- hlist_add_head(&x6spi->list_byspi, &xfrm6_tunnel_spi_byspi[index]);
-
- index = xfrm6_tunnel_spi_hash_byaddr(saddr);
- hlist_add_head(&x6spi->list_byaddr, &xfrm6_tunnel_spi_byaddr[index]);
- X6SPI_CHECK_MAGIC(x6spi);
-out:
- X6TPRINTK3(KERN_DEBUG "%s() = %u\n", __FUNCTION__, spi);
- return spi;
-}
-
-u32 xfrm6_tunnel_alloc_spi(xfrm_address_t *saddr)
-{
- struct xfrm6_tunnel_spi *x6spi;
- u32 spi;
-
- X6TPRINTK3(KERN_DEBUG "%s(saddr=%p)\n", __FUNCTION__, saddr);
-
- write_lock_bh(&xfrm6_tunnel_spi_lock);
- x6spi = __xfrm6_tunnel_spi_lookup(saddr);
- if (x6spi) {
- atomic_inc(&x6spi->refcnt);
- spi = x6spi->spi;
- } else
- spi = __xfrm6_tunnel_alloc_spi(saddr);
- write_unlock_bh(&xfrm6_tunnel_spi_lock);
-
- X6TPRINTK3(KERN_DEBUG "%s() = %u\n", __FUNCTION__, spi);
-
- return spi;
-}
-
-EXPORT_SYMBOL(xfrm6_tunnel_alloc_spi);
-
-void xfrm6_tunnel_free_spi(xfrm_address_t *saddr)
-{
- struct xfrm6_tunnel_spi *x6spi;
- struct hlist_node *pos, *n;
-
- X6TPRINTK3(KERN_DEBUG "%s(saddr=%p)\n", __FUNCTION__, saddr);
-
- write_lock_bh(&xfrm6_tunnel_spi_lock);
-
- hlist_for_each_entry_safe(x6spi, pos, n,
- &xfrm6_tunnel_spi_byaddr[xfrm6_tunnel_spi_hash_byaddr(saddr)],
- list_byaddr)
- {
- if (memcmp(&x6spi->addr, saddr, sizeof(x6spi->addr)) == 0) {
- X6TPRINTK3(KERN_DEBUG "%s(): x6spi object "
- "for %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x "
- "found at %p\n",
- __FUNCTION__,
- NIP6(*(struct in6_addr *)saddr),
- x6spi);
- X6SPI_CHECK_MAGIC(x6spi);
- if (atomic_dec_and_test(&x6spi->refcnt)) {
- hlist_del(&x6spi->list_byaddr);
- hlist_del(&x6spi->list_byspi);
- kmem_cache_free(xfrm6_tunnel_spi_kmem, x6spi);
- break;
- }
- }
- }
- write_unlock_bh(&xfrm6_tunnel_spi_lock);
-}
-
-EXPORT_SYMBOL(xfrm6_tunnel_free_spi);
-
-int xfrm6_tunnel_check_size(struct sk_buff *skb)
-{
- int mtu, ret = 0;
- struct dst_entry *dst = skb->dst;
-
- mtu = dst_pmtu(dst) - sizeof(struct ipv6hdr);
- if (mtu < IPV6_MIN_MTU)
- mtu = IPV6_MIN_MTU;
-
- if (skb->len > mtu) {
- icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
- ret = -EMSGSIZE;
- }
-
- return ret;
-}
-
-EXPORT_SYMBOL(xfrm6_tunnel_check_size);
-
-static int xfrm6_tunnel_output(struct sk_buff **pskb)
-{
- struct sk_buff *skb = *pskb;
- struct dst_entry *dst = skb->dst;
- struct xfrm_state *x = dst->xfrm;
- struct ipv6hdr *iph, *top_iph;
- int err;
-
- if ((err = xfrm6_tunnel_check_size(skb)) != 0)
- goto error_nolock;
-
- iph = skb->nh.ipv6h;
-
- top_iph = (struct ipv6hdr *)skb_push(skb, x->props.header_len);
- top_iph->version = 6;
- top_iph->priority = iph->priority;
- top_iph->flow_lbl[0] = iph->flow_lbl[0];
- top_iph->flow_lbl[1] = iph->flow_lbl[1];
- top_iph->flow_lbl[2] = iph->flow_lbl[2];
- top_iph->nexthdr = IPPROTO_IPV6;
- top_iph->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
- top_iph->hop_limit = iph->hop_limit;
- memcpy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr, sizeof(struct in6_addr));
- memcpy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr, sizeof(struct in6_addr));
- skb->nh.raw = skb->data;
- skb->h.raw = skb->nh.raw + sizeof(struct ipv6hdr);
-
- x->curlft.bytes += skb->len;
- x->curlft.packets++;
-
- spin_unlock_bh(&x->lock);
-
- if ((skb->dst = dst_pop(dst)) == NULL) {
- kfree_skb(skb);
- err = -EHOSTUNREACH;
- goto error_nolock;
- }
-
- return NET_XMIT_BYPASS;
-
-error_nolock:
- kfree_skb(skb);
- return err;
-}
-
-static int xfrm6_tunnel_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struct sk_buff *skb)
-{
- if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
- return -EINVAL;
-
- skb->mac.raw = skb->nh.raw;
- skb->nh.raw = skb->data;
- dst_release(skb->dst);
- skb->dst = NULL;
- skb->protocol = htons(ETH_P_IPV6);
- skb->pkt_type = PACKET_HOST;
- netif_rx(skb);
-
- return 0;
-}
-
-static struct xfrm6_tunnel *xfrm6_tunnel_handler;
-static DECLARE_MUTEX(xfrm6_tunnel_sem);
-
-int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
-{
- int ret;
-
- down(&xfrm6_tunnel_sem);
- ret = 0;
- if (xfrm6_tunnel_handler != NULL)
- ret = -EINVAL;
- if (!ret)
- xfrm6_tunnel_handler = handler;
- up(&xfrm6_tunnel_sem);
-
- return ret;
-}
-
-EXPORT_SYMBOL(xfrm6_tunnel_register);
-
-int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler)
-{
- int ret;
-
- down(&xfrm6_tunnel_sem);
- ret = 0;
- if (xfrm6_tunnel_handler != handler)
- ret = -EINVAL;
- if (!ret)
- xfrm6_tunnel_handler = NULL;
- up(&xfrm6_tunnel_sem);
-
- synchronize_net();
-
- return ret;
-}
-
-EXPORT_SYMBOL(xfrm6_tunnel_deregister);
-
-static int xfrm6_tunnel_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
-{
- struct sk_buff *skb = *pskb;
- struct xfrm6_tunnel *handler = xfrm6_tunnel_handler;
- struct xfrm_state *x = NULL;
- struct ipv6hdr *iph = skb->nh.ipv6h;
- int err = 0;
- u32 spi;
-
- /* device-like_ip6ip6_handler() */
- if (handler) {
- err = handler->handler(pskb, nhoffp);
- if (!err)
- goto out;
- }
-
- spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&iph->saddr);
- x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr,
- spi,
- IPPROTO_IPV6, AF_INET6);
-
- if (!x)
- goto drop;
-
- spin_lock(&x->lock);
-
- if (unlikely(x->km.state != XFRM_STATE_VALID))
- goto drop_unlock;
-
- err = xfrm6_tunnel_input(x, NULL, skb);
- if (err)
- goto drop_unlock;
-
- x->curlft.bytes += skb->len;
- x->curlft.packets++;
- spin_unlock(&x->lock);
- xfrm_state_put(x);
-
-out:
- return 0;
-
-drop_unlock:
- spin_unlock(&x->lock);
- xfrm_state_put(x);
-drop:
- kfree_skb(skb);
- return -1;
-}
-
-static void xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
- int type, int code, int offset, __u32 info)
-{
- struct xfrm6_tunnel *handler = xfrm6_tunnel_handler;
-
- /* call here first for device-like ip6ip6 err handling */
- if (handler) {
- handler->err_handler(skb, opt, type, code, offset, info);
- return;
- }
-
- /* xfrm6_tunnel native err handling */
- switch (type) {
- case ICMPV6_DEST_UNREACH:
- switch (code) {
- case ICMPV6_NOROUTE:
- case ICMPV6_ADM_PROHIBITED:
- case ICMPV6_NOT_NEIGHBOUR:
- case ICMPV6_ADDR_UNREACH:
- case ICMPV6_PORT_UNREACH:
- default:
- X6TPRINTK3(KERN_DEBUG
- "xfrm6_tunnel: Destination Unreach.\n");
- break;
- }
- break;
- case ICMPV6_PKT_TOOBIG:
- X6TPRINTK3(KERN_DEBUG
- "xfrm6_tunnel: Packet Too Big.\n");
- break;
- case ICMPV6_TIME_EXCEED:
- switch (code) {
- case ICMPV6_EXC_HOPLIMIT:
- X6TPRINTK3(KERN_DEBUG
- "xfrm6_tunnel: Too small Hoplimit.\n");
- break;
- case ICMPV6_EXC_FRAGTIME:
- default:
- break;
- }
- break;
- case ICMPV6_PARAMPROB:
- switch (code) {
- case ICMPV6_HDR_FIELD: break;
- case ICMPV6_UNK_NEXTHDR: break;
- case ICMPV6_UNK_OPTION: break;
- }
- break;
- default:
- break;
- }
- return;
-}
-
-static int xfrm6_tunnel_init_state(struct xfrm_state *x, void *args)
-{
- if (!x->props.mode)
- return -EINVAL;
-
- x->props.header_len = sizeof(struct ipv6hdr);
-
- return 0;
-}
-
-static void xfrm6_tunnel_destroy(struct xfrm_state *x)
-{
- xfrm6_tunnel_free_spi((xfrm_address_t *)&x->props.saddr);
-}
-
-static struct xfrm_type xfrm6_tunnel_type = {
- .description = "IP6IP6",
- .owner = THIS_MODULE,
- .proto = IPPROTO_IPV6,
- .init_state = xfrm6_tunnel_init_state,
- .destructor = xfrm6_tunnel_destroy,
- .input = xfrm6_tunnel_input,
- .output = xfrm6_tunnel_output,
-};
-
-static struct inet6_protocol xfrm6_tunnel_protocol = {
- .handler = xfrm6_tunnel_rcv,
- .err_handler = xfrm6_tunnel_err,
- .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
-};
-
-void __init xfrm6_tunnel_init(void)
-{
- X6TPRINTK3(KERN_DEBUG "%s()\n", __FUNCTION__);
-
- if (xfrm_register_type(&xfrm6_tunnel_type, AF_INET6) < 0) {
- X6TPRINTK1(KERN_ERR
- "xfrm6_tunnel init: can't add xfrm type\n");
- return;
- }
- if (inet6_add_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6) < 0) {
- X6TPRINTK1(KERN_ERR
- "xfrm6_tunnel init(): can't add protocol\n");
- xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
- return;
- }
- if (xfrm6_tunnel_spi_init() < 0) {
- X6TPRINTK1(KERN_ERR
- "xfrm6_tunnel init: failed to initialize spi\n");
- inet6_del_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6);
- xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
- return;
- }
-}
-
-void __exit xfrm6_tunnel_fini(void)
-{
- X6TPRINTK3(KERN_DEBUG "%s()\n", __FUNCTION__);
-
- xfrm6_tunnel_spi_fini();
- if (inet6_del_protocol(&xfrm6_tunnel_protocol, IPPROTO_IPV6) < 0)
- X6TPRINTK1(KERN_ERR
- "xfrm6_tunnel close: can't remove protocol\n");
- if (xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6) < 0)
- X6TPRINTK1(KERN_ERR
- "xfrm6_tunnel close: can't remove xfrm type\n");
-}
+++ /dev/null
-/*
- * net/sched/act_api.c Packet action API.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Author: Jamal Hadi Salim
- *
- *
- */
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/bitops.h>
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/in.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
-#include <linux/init.h>
-#include <linux/kmod.h>
-#include <net/sock.h>
-#include <net/pkt_sched.h>
-
-#if 1 /* control */
-#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define DPRINTK(format,args...)
-#endif
-#if 0 /* data */
-#define D2PRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define D2PRINTK(format,args...)
-#endif
-
-static struct tc_action_ops *act_base = NULL;
-static rwlock_t act_mod_lock = RW_LOCK_UNLOCKED;
-
-int tcf_register_action(struct tc_action_ops *act)
-{
- struct tc_action_ops *a, **ap;
-
- write_lock(&act_mod_lock);
- for (ap = &act_base; (a=*ap)!=NULL; ap = &a->next) {
- if (act->type == a->type || (strcmp(act->kind, a->kind) == 0)) {
- write_unlock(&act_mod_lock);
- return -EEXIST;
- }
- }
-
- act->next = NULL;
- *ap = act;
-
- write_unlock(&act_mod_lock);
-
- return 0;
-}
-
-int tcf_unregister_action(struct tc_action_ops *act)
-{
- struct tc_action_ops *a, **ap;
- int err = -ENOENT;
-
- write_lock(&act_mod_lock);
- for (ap = &act_base; (a=*ap)!=NULL; ap = &a->next)
- if(a == act)
- break;
-
- if (a) {
- *ap = a->next;
- a->next = NULL;
- err = 0;
- }
- write_unlock(&act_mod_lock);
- return err;
-}
-
-/* lookup by name */
-struct tc_action_ops *tc_lookup_action_n(char *kind)
-{
-
- struct tc_action_ops *a = NULL;
-
- if (kind) {
- read_lock(&act_mod_lock);
- for (a = act_base; a; a = a->next) {
- if (strcmp(kind,a->kind) == 0) {
- if (!try_module_get(a->owner)) {
- read_unlock(&act_mod_lock);
- return NULL;
- }
- break;
- }
- }
- read_unlock(&act_mod_lock);
- }
-
- return a;
-}
-
-/* lookup by rtattr */
-struct tc_action_ops *tc_lookup_action(struct rtattr *kind)
-{
-
- struct tc_action_ops *a = NULL;
-
- if (kind) {
- read_lock(&act_mod_lock);
- for (a = act_base; a; a = a->next) {
-
- if (strcmp((char*)RTA_DATA(kind),a->kind) == 0){
- if (!try_module_get(a->owner)) {
- read_unlock(&act_mod_lock);
- return NULL;
- }
- break;
- }
- }
- read_unlock(&act_mod_lock);
- }
-
- return a;
-}
-
-/* lookup by id */
-struct tc_action_ops *tc_lookup_action_id(u32 type)
-{
- struct tc_action_ops *a = NULL;
-
- if (type) {
- read_lock(&act_mod_lock);
- for (a = act_base; a; a = a->next) {
- if (a->type == type) {
- if (!try_module_get(a->owner)) {
- read_unlock(&act_mod_lock);
- return NULL;
- }
- break;
- }
- }
- read_unlock(&act_mod_lock);
- }
-
- return a;
-}
-
-int tcf_action_exec(struct sk_buff *skb,struct tc_action *act)
-{
-
- struct tc_action *a;
- int ret = -1;
-
- if (skb->tc_verd & TC_NCLS) {
- skb->tc_verd = CLR_TC_NCLS(skb->tc_verd);
- D2PRINTK("(%p)tcf_action_exec: cleared TC_NCLS in %s out %s\n",skb,skb->input_dev?skb->input_dev->name:"xxx",skb->dev->name);
- return TC_ACT_OK;
- }
- while ((a = act) != NULL) {
-repeat:
- if (a->ops && a->ops->act) {
- ret = a->ops->act(&skb,a);
- if (TC_MUNGED & skb->tc_verd) {
- /* copied already, allow trampling */
- skb->tc_verd = SET_TC_OK2MUNGE(skb->tc_verd);
- skb->tc_verd = CLR_TC_MUNGED(skb->tc_verd);
- }
-
- if (ret != TC_ACT_PIPE)
- goto exec_done;
- if (ret == TC_ACT_REPEAT)
- goto repeat; /* we need a ttl - JHS */
-
- }
- act = a->next;
- }
-
-exec_done:
-
- return ret;
-}
-
-void tcf_action_destroy(struct tc_action *act, int bind)
-{
- struct tc_action *a;
-
- for (a = act; act; a = act) {
- if (a && a->ops && a->ops->cleanup) {
- DPRINTK("tcf_action_destroy destroying %p next %p\n", a,a->next?a->next:NULL);
- act = act->next;
- if (ACT_P_DELETED == a->ops->cleanup(a, bind)) {
- module_put(a->ops->owner);
- }
-
- a->ops = NULL;
- kfree(a);
- } else { /*FIXME: Remove later - catch insertion bugs*/
- printk("tcf_action_destroy: BUG? destroying NULL ops \n");
- if (a) {
- act = act->next;
- kfree(a);
- } else {
- printk("tcf_action_destroy: BUG? destroying NULL action! \n");
- break;
- }
- }
- }
-}
-
-int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
-{
- int err = -EINVAL;
-
-
- if ( (NULL == a) || (NULL == a->ops)
- || (NULL == a->ops->dump) )
- return err;
- return a->ops->dump(skb, a, bind, ref);
-
-}
-
-
-int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
-{
- int err = -EINVAL;
- unsigned char *b = skb->tail;
- struct rtattr *r;
-
-
- if ( (NULL == a) || (NULL == a->ops)
- || (NULL == a->ops->dump) || (NULL == a->ops->kind))
- return err;
-
-
- RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);
- if (tcf_action_copy_stats(skb,a))
- goto rtattr_failure;
- r = (struct rtattr*) skb->tail;
- RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
- if ((err = tcf_action_dump_old(skb, a, bind, ref)) > 0) {
- r->rta_len = skb->tail - (u8*)r;
- return err;
- }
-
-
-rtattr_failure:
- skb_trim(skb, b - skb->data);
- return -1;
-
-}
-
-int tcf_action_dump(struct sk_buff *skb, struct tc_action *act, int bind, int ref)
-{
- struct tc_action *a;
- int err = -EINVAL;
- unsigned char *b = skb->tail;
- struct rtattr *r ;
-
- while ((a = act) != NULL) {
- r = (struct rtattr*) skb->tail;
- act = a->next;
- RTA_PUT(skb, a->order, 0, NULL);
- err = tcf_action_dump_1(skb, a, bind, ref);
- if (0 > err)
- goto rtattr_failure;
-
- r->rta_len = skb->tail - (u8*)r;
- }
-
- return 0;
-
-rtattr_failure:
- skb_trim(skb, b - skb->data);
- return -err;
-
-}
-
-int tcf_action_init_1(struct rtattr *rta, struct rtattr *est, struct tc_action *a, char *name, int ovr, int bind )
-{
- struct tc_action_ops *a_o;
- char act_name[4 + IFNAMSIZ + 1];
- struct rtattr *tb[TCA_ACT_MAX+1];
- struct rtattr *kind = NULL;
-
- int err = -EINVAL;
-
- if (NULL == name) {
- if (rtattr_parse(tb, TCA_ACT_MAX, RTA_DATA(rta), RTA_PAYLOAD(rta))<0)
- goto err_out;
- kind = tb[TCA_ACT_KIND-1];
- if (NULL != kind) {
- sprintf(act_name, "%s", (char*)RTA_DATA(kind));
- if (RTA_PAYLOAD(kind) >= IFNAMSIZ) {
- printk(" Action %s bad\n", (char*)RTA_DATA(kind));
- goto err_out;
- }
-
- } else {
- printk("Action bad kind\n");
- goto err_out;
- }
- a_o = tc_lookup_action(kind);
- } else {
- sprintf(act_name, "%s", name);
- DPRINTK("tcf_action_init_1: finding %s\n",act_name);
- a_o = tc_lookup_action_n(name);
- }
-#ifdef CONFIG_KMOD
- if (NULL == a_o) {
- DPRINTK("tcf_action_init_1: trying to load module %s\n",act_name);
- request_module (act_name);
- a_o = tc_lookup_action_n(act_name);
- }
-
-#endif
- if (NULL == a_o) {
- printk("failed to find %s\n",act_name);
- goto err_out;
- }
-
- if (NULL == a) {
- goto err_mod;
- }
-
- /* backward compatibility for policer */
- if (NULL == name) {
- err = a_o->init(tb[TCA_ACT_OPTIONS-1], est, a, ovr, bind);
- if (0 > err ) {
- err = -EINVAL;
- goto err_mod;
- }
- } else {
- err = a_o->init(rta, est, a, ovr, bind);
- if (0 > err ) {
- err = -EINVAL;
- goto err_mod;
- }
- }
-
- /* module count goes up only when brand new policy is created
- if it exists and is only bound to in a_o->init() then
- ACT_P_CREATED is not returned (a zero is).
- */
- if (ACT_P_CREATED != err) {
- module_put(a_o->owner);
- }
- a->ops = a_o;
- DPRINTK("tcf_action_init_1: successfull %s \n",act_name);
-
- return 0;
-err_mod:
- module_put(a_o->owner);
-err_out:
- return err;
-}
-
-int tcf_action_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a, char *name, int ovr , int bind)
-{
- struct rtattr *tb[TCA_ACT_MAX_PRIO+1];
- int i;
- struct tc_action *act = a, *a_s = a;
-
- int err = -EINVAL;
-
- if (rtattr_parse(tb, TCA_ACT_MAX_PRIO, RTA_DATA(rta), RTA_PAYLOAD(rta))<0)
- return err;
-
- for (i=0; i < TCA_ACT_MAX_PRIO ; i++) {
- if (tb[i]) {
- if (NULL == act) {
- act = kmalloc(sizeof(*act),GFP_KERNEL);
- if (NULL == act) {
- err = -ENOMEM;
- goto bad_ret;
- }
- memset(act, 0,sizeof(*act));
- }
- act->next = NULL;
- if (0 > tcf_action_init_1(tb[i],est,act,name,ovr,bind)) {
- printk("Error processing action order %d\n",i);
- return err;
- }
-
- act->order = i+1;
- if (a_s != act) {
- a_s->next = act;
- a_s = act;
- }
- act = NULL;
- }
-
- }
-
- return 0;
-bad_ret:
- tcf_action_destroy(a, bind);
- return err;
-}
-
-int tcf_action_copy_stats (struct sk_buff *skb,struct tc_action *a)
-{
-#ifdef CONFIG_KMOD
- /* place holder */
-#endif
-
- if (NULL == a->ops || NULL == a->ops->get_stats)
- return 1;
-
- return a->ops->get_stats(skb,a);
-}
-
-
-static int
-tca_get_fill(struct sk_buff *skb, struct tc_action *a,
- u32 pid, u32 seq, unsigned flags, int event, int bind, int ref)
-{
- struct tcamsg *t;
- struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
- struct rtattr *x;
-
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*t));
- nlh->nlmsg_flags = flags;
- t = NLMSG_DATA(nlh);
- t->tca_family = AF_UNSPEC;
-
- x = (struct rtattr*) skb->tail;
- RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
-
- if (0 > tcf_action_dump(skb, a, bind, ref)) {
- goto rtattr_failure;
- }
-
- x->rta_len = skb->tail - (u8*)x;
-
- nlh->nlmsg_len = skb->tail - b;
- return skb->len;
-
-rtattr_failure:
-nlmsg_failure:
- skb_trim(skb, b - skb->data);
- return -1;
-}
-
-static int act_get_notify(u32 pid, struct nlmsghdr *n,
- struct tc_action *a, int event)
-{
- struct sk_buff *skb;
-
- int err = 0;
-
- skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!skb)
- return -ENOBUFS;
-
- if (tca_get_fill(skb, a, pid, n->nlmsg_seq, 0, event, 0, 0) <= 0) {
- kfree_skb(skb);
- return -EINVAL;
- }
-
- err = netlink_unicast(rtnl,skb, pid, MSG_DONTWAIT);
- if (err > 0)
- err = 0;
- return err;
-}
-
-int tcf_action_get_1(struct rtattr *rta, struct tc_action *a, struct nlmsghdr *n, u32 pid)
-{
- struct tc_action_ops *a_o;
- char act_name[4 + IFNAMSIZ + 1];
- struct rtattr *tb[TCA_ACT_MAX+1];
- struct rtattr *kind = NULL;
- int index;
-
- int err = -EINVAL;
-
- if (rtattr_parse(tb, TCA_ACT_MAX, RTA_DATA(rta), RTA_PAYLOAD(rta))<0)
- goto err_out;
-
-
- kind = tb[TCA_ACT_KIND-1];
- if (NULL != kind) {
- sprintf(act_name, "%s", (char*)RTA_DATA(kind));
- if (RTA_PAYLOAD(kind) >= IFNAMSIZ) {
- printk("tcf_action_get_1: action %s bad\n", (char*)RTA_DATA(kind));
- goto err_out;
- }
-
- } else {
- printk("tcf_action_get_1: action bad kind\n");
- goto err_out;
- }
-
- if (tb[TCA_ACT_INDEX - 1]) {
- index = *(int *)RTA_DATA(tb[TCA_ACT_INDEX - 1]);
- } else {
- printk("tcf_action_get_1: index not received\n");
- goto err_out;
- }
-
- a_o = tc_lookup_action(kind);
-#ifdef CONFIG_KMOD
- if (NULL == a_o) {
- request_module (act_name);
- a_o = tc_lookup_action_n(act_name);
- }
-
-#endif
- if (NULL == a_o) {
- printk("failed to find %s\n",act_name);
- goto err_out;
- }
-
- if (NULL == a) {
- goto err_mod;
- }
-
- a->ops = a_o;
-
- if (NULL == a_o->lookup || 0 == a_o->lookup(a, index)) {
- a->ops = NULL;
- err = -EINVAL;
- goto err_mod;
- }
-
- module_put(a_o->owner);
- return 0;
-err_mod:
- module_put(a_o->owner);
-err_out:
- return err;
-}
-
-void cleanup_a (struct tc_action *act)
-{
- struct tc_action *a;
-
- for (a = act; act; a = act) {
- if (a) {
- act = act->next;
- a->ops = NULL;
- a->priv = NULL;
- kfree(a);
- } else {
- printk("cleanup_a: BUG? empty action\n");
- }
- }
-}
-
-struct tc_action_ops *get_ao(struct rtattr *kind, struct tc_action *a)
-{
- char act_name[4 + IFNAMSIZ + 1];
- struct tc_action_ops *a_o = NULL;
-
- if (NULL != kind) {
- sprintf(act_name, "%s", (char*)RTA_DATA(kind));
- if (RTA_PAYLOAD(kind) >= IFNAMSIZ) {
- printk("get_ao: action %s bad\n", (char*)RTA_DATA(kind));
- return NULL;
- }
-
- } else {
- printk("get_ao: action bad kind\n");
- return NULL;
- }
-
- a_o = tc_lookup_action(kind);
-#ifdef CONFIG_KMOD
- if (NULL == a_o) {
- DPRINTK("get_ao: trying to load module %s\n",act_name);
- request_module (act_name);
- a_o = tc_lookup_action_n(act_name);
- }
-#endif
-
- if (NULL == a_o) {
- printk("get_ao: failed to find %s\n",act_name);
- return NULL;
- }
-
- a->ops = a_o;
- return a_o;
-}
-
-struct tc_action *create_a(int i)
-{
- struct tc_action *act = NULL;
-
- act = kmalloc(sizeof(*act),GFP_KERNEL);
- if (NULL == act) { /* grrr .. */
- printk("create_a: failed to alloc! \n");
- return NULL;
- }
-
- memset(act, 0,sizeof(*act));
-
- act->order = i;
-
- return act;
-}
-
-int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid)
-{
- struct sk_buff *skb;
- unsigned char *b;
- struct nlmsghdr *nlh;
- struct tcamsg *t;
- struct netlink_callback dcb;
- struct rtattr *x;
- struct rtattr *tb[TCA_ACT_MAX+1];
- struct rtattr *kind = NULL;
- struct tc_action *a = create_a(0);
- int err = -EINVAL;
-
- if (NULL == a) {
- printk("tca_action_flush: couldnt create tc_action\n");
- return err;
- }
-
- skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!skb) {
- printk("tca_action_flush: failed skb alloc\n");
- kfree(a);
- return -ENOBUFS;
- }
-
- b = (unsigned char *)skb->tail;
-
- if (rtattr_parse(tb, TCA_ACT_MAX, RTA_DATA(rta), RTA_PAYLOAD(rta))<0) {
- goto err_out;
- }
-
- kind = tb[TCA_ACT_KIND-1];
- if (NULL == get_ao(kind, a)) {
- goto err_out;
- }
-
- nlh = NLMSG_PUT(skb, pid, n->nlmsg_seq, RTM_DELACTION, sizeof (*t));
- t = NLMSG_DATA(nlh);
- t->tca_family = AF_UNSPEC;
-
- x = (struct rtattr *) skb->tail;
- RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
-
- err = a->ops->walk(skb, &dcb, RTM_DELACTION, a);
- if (0 > err ) {
- goto rtattr_failure;
- }
-
- x->rta_len = skb->tail - (u8 *) x;
-
- nlh->nlmsg_len = skb->tail - b;
- nlh->nlmsg_flags |= NLM_F_ROOT;
- module_put(a->ops->owner);
- kfree(a);
- err = rtnetlink_send(skb, pid, RTMGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
- if (err > 0)
- return 0;
-
- return err;
-
-
-rtattr_failure:
- module_put(a->ops->owner);
-nlmsg_failure:
-err_out:
- kfree_skb(skb);
- kfree(a);
- return err;
-}
-
-int tca_action_gd(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int event )
-{
-
- int s = 0;
- int i, ret = 0;
- struct tc_action *act = NULL;
- struct rtattr *tb[TCA_ACT_MAX_PRIO+1];
- struct tc_action *a = NULL, *a_s = NULL;
-
- if (event != RTM_GETACTION && event != RTM_DELACTION)
- ret = -EINVAL;
-
- if (rtattr_parse(tb, TCA_ACT_MAX_PRIO, RTA_DATA(rta), RTA_PAYLOAD(rta))<0) {
- ret = -EINVAL;
- goto nlmsg_failure;
- }
-
- if (event == RTM_DELACTION && n->nlmsg_flags&NLM_F_ROOT) {
- if (NULL != tb[0] && NULL == tb[1]) {
- return tca_action_flush(tb[0],n,pid);
- }
- }
-
- for (i=0; i < TCA_ACT_MAX_PRIO ; i++) {
-
- if (NULL == tb[i])
- break;
-
- act = create_a(i+1);
- if (NULL != a && a != act) {
- a->next = act;
- a = act;
- } else {
- a = act;
- }
-
- if (!s) {
- s = 1;
- a_s = a;
- }
-
- ret = tcf_action_get_1(tb[i],act,n,pid);
- if (ret < 0) {
- printk("tcf_action_get: failed to get! \n");
- ret = -EINVAL;
- goto rtattr_failure;
- }
-
- }
-
-
- if (RTM_GETACTION == event) {
- ret = act_get_notify(pid, n, a_s, event);
- } else { /* delete */
-
- struct sk_buff *skb;
-
- skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!skb) {
- ret = -ENOBUFS;
- goto nlmsg_failure;
- }
-
- if (tca_get_fill(skb, a_s, pid, n->nlmsg_seq, 0, event, 0 , 1) <= 0) {
- kfree_skb(skb);
- ret = -EINVAL;
- goto nlmsg_failure;
- }
-
- /* now do the delete */
- tcf_action_destroy(a_s, 0);
-
- ret = rtnetlink_send(skb, pid, RTMGRP_TC, n->nlmsg_flags&NLM_F_ECHO);
- if (ret > 0)
- return 0;
- return ret;
- }
-rtattr_failure:
-nlmsg_failure:
- cleanup_a(a_s);
- return ret;
-}
-
-
-int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, unsigned flags)
-{
- struct tcamsg *t;
- struct nlmsghdr *nlh;
- struct sk_buff *skb;
- struct rtattr *x;
- unsigned char *b;
-
-
- int err = 0;
-
- skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!skb)
- return -ENOBUFS;
-
- b = (unsigned char *)skb->tail;
-
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*t));
- nlh->nlmsg_flags = flags;
- t = NLMSG_DATA(nlh);
- t->tca_family = AF_UNSPEC;
-
- x = (struct rtattr*) skb->tail;
- RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
-
- if (0 > tcf_action_dump(skb, a, 0, 0)) {
- goto rtattr_failure;
- }
-
- x->rta_len = skb->tail - (u8*)x;
-
- nlh->nlmsg_len = skb->tail - b;
- NETLINK_CB(skb).dst_groups = RTMGRP_TC;
-
- err = rtnetlink_send(skb, pid, RTMGRP_TC, flags&NLM_F_ECHO);
- if (err > 0)
- err = 0;
-
- return err;
-
-rtattr_failure:
-nlmsg_failure:
- skb_trim(skb, b - skb->data);
- return -1;
-}
-
-
-int tcf_action_add(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int ovr )
-{
- int ret = 0;
- struct tc_action *act = NULL;
- struct tc_action *a = NULL;
- u32 seq = n->nlmsg_seq;
-
- act = kmalloc(sizeof(*act),GFP_KERNEL);
- if (NULL == act)
- return -ENOMEM;
-
- memset(act, 0, sizeof(*act));
-
- ret = tcf_action_init(rta, NULL,act,NULL,ovr,0);
- /* NOTE: We have an all-or-none model
- * This means that of any of the actions fail
- * to update then all are undone.
- * */
- if (0 > ret) {
- tcf_action_destroy(act, 0);
- goto done;
- }
-
- /* dump then free all the actions after update; inserted policy
- * stays intact
- * */
- ret = tcf_add_notify(act, pid, seq, RTM_NEWACTION, n->nlmsg_flags);
- for (a = act; act; a = act) {
- if (a) {
- act = act->next;
- a->ops = NULL;
- a->priv = NULL;
- kfree(a);
- } else {
- printk("tcf_action_add: BUG? empty action\n");
- }
- }
-done:
-
- return ret;
-}
-
-static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
-{
- struct rtattr **tca = arg;
- u32 pid = skb ? NETLINK_CB(skb).pid : 0;
-
- int ret = 0, ovr = 0;
-
- if (NULL == tca[TCA_ACT_TAB-1]) {
- printk("tc_ctl_action: received NO action attribs\n");
- return -EINVAL;
- }
-
- /* n->nlmsg_flags&NLM_F_CREATE
- * */
- switch (n->nlmsg_type) {
- case RTM_NEWACTION:
- /* we are going to assume all other flags
- * imply create only if it doesnt exist
- * Note that CREATE | EXCL implies that
- * but since we want avoid ambiguity (eg when flags
- * is zero) then just set this
- */
- if (n->nlmsg_flags&NLM_F_REPLACE) {
- ovr = 1;
- }
- ret = tcf_action_add(tca[TCA_ACT_TAB-1], n, pid, ovr);
- break;
- case RTM_DELACTION:
- ret = tca_action_gd(tca[TCA_ACT_TAB-1], n, pid,RTM_DELACTION);
- break;
- case RTM_GETACTION:
- ret = tca_action_gd(tca[TCA_ACT_TAB-1], n, pid,RTM_GETACTION);
- break;
- default:
- printk(" Unknown cmd was detected\n");
- break;
- }
-
- return ret;
-}
-
-char *
-find_dump_kind(struct nlmsghdr *n)
-{
- struct rtattr *tb1, *tb2[TCA_ACT_MAX+1];
- struct rtattr *tb[TCA_ACT_MAX_PRIO + 1];
- struct rtattr *rta[TCAA_MAX + 1];
- struct rtattr *kind = NULL;
- int min_len = NLMSG_LENGTH(sizeof (struct tcamsg));
-
- int attrlen = n->nlmsg_len - NLMSG_ALIGN(min_len);
- struct rtattr *attr = (void *) n + NLMSG_ALIGN(min_len);
-
- if (rtattr_parse(rta, TCAA_MAX, attr, attrlen) < 0)
- return NULL;
- tb1 = rta[TCA_ACT_TAB - 1];
- if (NULL == tb1) {
- return NULL;
- }
-
- if (rtattr_parse(tb, TCA_ACT_MAX_PRIO, RTA_DATA(tb1), NLMSG_ALIGN(RTA_PAYLOAD(tb1))) < 0)
- return NULL;
- if (NULL == tb[0])
- return NULL;
-
- if (rtattr_parse(tb2, TCA_ACT_MAX, RTA_DATA(tb[0]), RTA_PAYLOAD(tb[0]))<0)
- return NULL;
- kind = tb2[TCA_ACT_KIND-1];
-
- return (char *) RTA_DATA(kind);
-}
-
-static int
-tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb)
-{
- struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
- struct rtattr *x;
- struct tc_action_ops *a_o;
- struct tc_action a;
- int ret = 0;
-
- struct tcamsg *t = (struct tcamsg *) NLMSG_DATA(cb->nlh);
- char *kind = find_dump_kind(cb->nlh);
- if (NULL == kind) {
- printk("tc_dump_action: action bad kind\n");
- return 0;
- }
-
- a_o = tc_lookup_action_n(kind);
-
- if (NULL == a_o) {
- printk("failed to find %s\n", kind);
- return 0;
- }
-
- memset(&a,0,sizeof(struct tc_action));
- a.ops = a_o;
-
- if (NULL == a_o->walk) {
- printk("tc_dump_action: %s !capable of dumping table\n",kind);
- goto rtattr_failure;
- }
-
- nlh = NLMSG_PUT(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, cb->nlh->nlmsg_type, sizeof (*t));
- t = NLMSG_DATA(nlh);
- t->tca_family = AF_UNSPEC;
-
- x = (struct rtattr *) skb->tail;
- RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
-
- ret = a_o->walk(skb, cb, RTM_GETACTION, &a);
- if (0 > ret ) {
- goto rtattr_failure;
- }
-
- if (ret > 0) {
- x->rta_len = skb->tail - (u8 *) x;
- ret = skb->len;
- } else {
- skb_trim(skb, (u8*)x - skb->data);
- }
-
- nlh->nlmsg_len = skb->tail - b;
- if (NETLINK_CB(cb->skb).pid && ret)
- nlh->nlmsg_flags |= NLM_F_MULTI;
- module_put(a_o->owner);
- return skb->len;
-
-rtattr_failure:
-nlmsg_failure:
- module_put(a_o->owner);
- skb_trim(skb, b - skb->data);
- return skb->len;
-}
-
-static int __init tc_action_init(void)
-{
- struct rtnetlink_link *link_p = rtnetlink_links[PF_UNSPEC];
-
- if (link_p) {
- link_p[RTM_NEWACTION-RTM_BASE].doit = tc_ctl_action;
- link_p[RTM_DELACTION-RTM_BASE].doit = tc_ctl_action;
- link_p[RTM_GETACTION-RTM_BASE].doit = tc_ctl_action;
- link_p[RTM_GETACTION-RTM_BASE].dumpit = tc_dump_action;
- }
-
- printk("TC classifier action (bugs to netdev@oss.sgi.com cc hadi@cyberus.ca)\n");
- return 0;
-}
-
-subsys_initcall(tc_action_init);
-
-EXPORT_SYMBOL(tcf_register_action);
-EXPORT_SYMBOL(tcf_unregister_action);
-EXPORT_SYMBOL(tcf_action_init_1);
-EXPORT_SYMBOL(tcf_action_init);
-EXPORT_SYMBOL(tcf_action_destroy);
-EXPORT_SYMBOL(tcf_action_exec);
-EXPORT_SYMBOL(tcf_action_copy_stats);
-EXPORT_SYMBOL(tcf_action_dump);
-EXPORT_SYMBOL(tcf_action_dump_1);
-EXPORT_SYMBOL(tcf_action_dump_old);
+++ /dev/null
-/*
- * net/sched/sch_netem.c Network emulator
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Authors: Stephen Hemminger <shemminger@osdl.org>
- * Catalin(ux aka Dino) BOIE <catab at umbrella dot ro>
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <asm/bitops.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
-
-#include <net/pkt_sched.h>
-
-/* Network emulator
- *
- * This scheduler can alters spacing and order
- * Similar to NISTnet and BSD Dummynet.
- */
-
-struct netem_sched_data {
- struct Qdisc *qdisc;
- struct sk_buff_head delayed;
- struct timer_list timer;
-
- u32 latency;
- u32 loss;
- u32 limit;
- u32 counter;
- u32 gap;
- u32 jitter;
-};
-
-/* Time stamp put into socket buffer control block */
-struct netem_skb_cb {
- psched_time_t time_to_send;
-};
-
-/* This is the distribution table for the normal distribution produced
- * with NISTnet tools.
- * The entries represent a scaled inverse of the cumulative distribution
- * function.
- */
-#define TABLESIZE 2048
-#define TABLEFACTOR 8192
-
-static const short disttable[TABLESIZE] = {
- -31473, -26739, -25226, -24269,
- -23560, -22993, -22518, -22109,
- -21749, -21426, -21133, -20865,
- -20618, -20389, -20174, -19972,
- -19782, -19601, -19430, -19267,
- -19112, -18962, -18819, -18681,
- -18549, -18421, -18298, -18178,
- -18062, -17950, -17841, -17735,
- -17632, -17532, -17434, -17339,
- -17245, -17155, -17066, -16979,
- -16894, -16811, -16729, -16649,
- -16571, -16494, -16419, -16345,
- -16272, -16201, -16130, -16061,
- -15993, -15926, -15861, -15796,
- -15732, -15669, -15607, -15546,
- -15486, -15426, -15368, -15310,
- -15253, -15196, -15140, -15086,
- -15031, -14977, -14925, -14872,
- -14821, -14769, -14719, -14669,
- -14619, -14570, -14522, -14473,
- -14426, -14379, -14332, -14286,
- -14241, -14196, -14150, -14106,
- -14062, -14019, -13976, -13933,
- -13890, -13848, -13807, -13765,
- -13724, -13684, -13643, -13604,
- -13564, -13525, -13486, -13447,
- -13408, -13370, -13332, -13295,
- -13258, -13221, -13184, -13147,
- -13111, -13075, -13040, -13004,
- -12969, -12934, -12899, -12865,
- -12830, -12796, -12762, -12729,
- -12695, -12662, -12629, -12596,
- -12564, -12531, -12499, -12467,
- -12435, -12404, -12372, -12341,
- -12310, -12279, -12248, -12218,
- -12187, -12157, -12127, -12097,
- -12067, -12038, -12008, -11979,
- -11950, -11921, -11892, -11863,
- -11835, -11806, -11778, -11750,
- -11722, -11694, -11666, -11639,
- -11611, -11584, -11557, -11530,
- -11503, -11476, -11450, -11423,
- -11396, -11370, -11344, -11318,
- -11292, -11266, -11240, -11214,
- -11189, -11164, -11138, -11113,
- -11088, -11063, -11038, -11013,
- -10988, -10964, -10939, -10915,
- -10891, -10866, -10843, -10818,
- -10794, -10770, -10747, -10723,
- -10700, -10676, -10652, -10630,
- -10606, -10583, -10560, -10537,
- -10514, -10491, -10469, -10446,
- -10424, -10401, -10378, -10356,
- -10334, -10312, -10290, -10267,
- -10246, -10224, -10202, -10180,
- -10158, -10137, -10115, -10094,
- -10072, -10051, -10030, -10009,
- -9988, -9967, -9945, -9925,
- -9904, -9883, -9862, -9842,
- -9821, -9800, -9780, -9760,
- -9739, -9719, -9699, -9678,
- -9658, -9638, -9618, -9599,
- -9578, -9559, -9539, -9519,
- -9499, -9480, -9461, -9441,
- -9422, -9402, -9383, -9363,
- -9344, -9325, -9306, -9287,
- -9268, -9249, -9230, -9211,
- -9192, -9173, -9155, -9136,
- -9117, -9098, -9080, -9062,
- -9043, -9025, -9006, -8988,
- -8970, -8951, -8933, -8915,
- -8897, -8879, -8861, -8843,
- -8825, -8807, -8789, -8772,
- -8754, -8736, -8718, -8701,
- -8683, -8665, -8648, -8630,
- -8613, -8595, -8578, -8561,
- -8543, -8526, -8509, -8492,
- -8475, -8458, -8441, -8423,
- -8407, -8390, -8373, -8356,
- -8339, -8322, -8305, -8289,
- -8272, -8255, -8239, -8222,
- -8206, -8189, -8172, -8156,
- -8140, -8123, -8107, -8090,
- -8074, -8058, -8042, -8025,
- -8009, -7993, -7977, -7961,
- -7945, -7929, -7913, -7897,
- -7881, -7865, -7849, -7833,
- -7817, -7802, -7786, -7770,
- -7754, -7739, -7723, -7707,
- -7692, -7676, -7661, -7645,
- -7630, -7614, -7599, -7583,
- -7568, -7553, -7537, -7522,
- -7507, -7492, -7476, -7461,
- -7446, -7431, -7416, -7401,
- -7385, -7370, -7356, -7340,
- -7325, -7311, -7296, -7281,
- -7266, -7251, -7236, -7221,
- -7207, -7192, -7177, -7162,
- -7148, -7133, -7118, -7104,
- -7089, -7075, -7060, -7046,
- -7031, -7016, -7002, -6988,
- -6973, -6959, -6944, -6930,
- -6916, -6901, -6887, -6873,
- -6859, -6844, -6830, -6816,
- -6802, -6788, -6774, -6760,
- -6746, -6731, -6717, -6704,
- -6690, -6675, -6661, -6647,
- -6633, -6620, -6606, -6592,
- -6578, -6564, -6550, -6537,
- -6523, -6509, -6495, -6482,
- -6468, -6454, -6441, -6427,
- -6413, -6400, -6386, -6373,
- -6359, -6346, -6332, -6318,
- -6305, -6291, -6278, -6264,
- -6251, -6238, -6224, -6211,
- -6198, -6184, -6171, -6158,
- -6144, -6131, -6118, -6105,
- -6091, -6078, -6065, -6052,
- -6039, -6025, -6012, -5999,
- -5986, -5973, -5960, -5947,
- -5934, -5921, -5908, -5895,
- -5882, -5869, -5856, -5843,
- -5830, -5817, -5804, -5791,
- -5779, -5766, -5753, -5740,
- -5727, -5714, -5702, -5689,
- -5676, -5663, -5650, -5638,
- -5625, -5612, -5600, -5587,
- -5575, -5562, -5549, -5537,
- -5524, -5512, -5499, -5486,
- -5474, -5461, -5449, -5436,
- -5424, -5411, -5399, -5386,
- -5374, -5362, -5349, -5337,
- -5324, -5312, -5299, -5287,
- -5275, -5263, -5250, -5238,
- -5226, -5213, -5201, -5189,
- -5177, -5164, -5152, -5140,
- -5128, -5115, -5103, -5091,
- -5079, -5067, -5055, -5043,
- -5030, -5018, -5006, -4994,
- -4982, -4970, -4958, -4946,
- -4934, -4922, -4910, -4898,
- -4886, -4874, -4862, -4850,
- -4838, -4826, -4814, -4803,
- -4791, -4778, -4767, -4755,
- -4743, -4731, -4719, -4708,
- -4696, -4684, -4672, -4660,
- -4649, -4637, -4625, -4613,
- -4601, -4590, -4578, -4566,
- -4554, -4543, -4531, -4520,
- -4508, -4496, -4484, -4473,
- -4461, -4449, -4438, -4427,
- -4415, -4403, -4392, -4380,
- -4368, -4357, -4345, -4334,
- -4322, -4311, -4299, -4288,
- -4276, -4265, -4253, -4242,
- -4230, -4219, -4207, -4196,
- -4184, -4173, -4162, -4150,
- -4139, -4128, -4116, -4105,
- -4094, -4082, -4071, -4060,
- -4048, -4037, -4026, -4014,
- -4003, -3992, -3980, -3969,
- -3958, -3946, -3935, -3924,
- -3913, -3901, -3890, -3879,
- -3868, -3857, -3845, -3834,
- -3823, -3812, -3801, -3790,
- -3779, -3767, -3756, -3745,
- -3734, -3723, -3712, -3700,
- -3689, -3678, -3667, -3656,
- -3645, -3634, -3623, -3612,
- -3601, -3590, -3579, -3568,
- -3557, -3545, -3535, -3524,
- -3513, -3502, -3491, -3480,
- -3469, -3458, -3447, -3436,
- -3425, -3414, -3403, -3392,
- -3381, -3370, -3360, -3348,
- -3337, -3327, -3316, -3305,
- -3294, -3283, -3272, -3262,
- -3251, -3240, -3229, -3218,
- -3207, -3197, -3185, -3175,
- -3164, -3153, -3142, -3132,
- -3121, -3110, -3099, -3088,
- -3078, -3067, -3056, -3045,
- -3035, -3024, -3013, -3003,
- -2992, -2981, -2970, -2960,
- -2949, -2938, -2928, -2917,
- -2906, -2895, -2885, -2874,
- -2864, -2853, -2842, -2832,
- -2821, -2810, -2800, -2789,
- -2778, -2768, -2757, -2747,
- -2736, -2725, -2715, -2704,
- -2694, -2683, -2673, -2662,
- -2651, -2641, -2630, -2620,
- -2609, -2599, -2588, -2578,
- -2567, -2556, -2546, -2535,
- -2525, -2515, -2504, -2493,
- -2483, -2472, -2462, -2451,
- -2441, -2431, -2420, -2410,
- -2399, -2389, -2378, -2367,
- -2357, -2347, -2336, -2326,
- -2315, -2305, -2295, -2284,
- -2274, -2263, -2253, -2243,
- -2232, -2222, -2211, -2201,
- -2191, -2180, -2170, -2159,
- -2149, -2139, -2128, -2118,
- -2107, -2097, -2087, -2076,
- -2066, -2056, -2046, -2035,
- -2025, -2014, -2004, -1994,
- -1983, -1973, -1963, -1953,
- -1942, -1932, -1921, -1911,
- -1901, -1891, -1880, -1870,
- -1860, -1849, -1839, -1829,
- -1819, -1808, -1798, -1788,
- -1778, -1767, -1757, -1747,
- -1736, -1726, -1716, -1706,
- -1695, -1685, -1675, -1665,
- -1654, -1644, -1634, -1624,
- -1613, -1603, -1593, -1583,
- -1573, -1563, -1552, -1542,
- -1532, -1522, -1511, -1501,
- -1491, -1481, -1471, -1461,
- -1450, -1440, -1430, -1420,
- -1409, -1400, -1389, -1379,
- -1369, -1359, -1348, -1339,
- -1328, -1318, -1308, -1298,
- -1288, -1278, -1267, -1257,
- -1247, -1237, -1227, -1217,
- -1207, -1196, -1186, -1176,
- -1166, -1156, -1146, -1135,
- -1126, -1115, -1105, -1095,
- -1085, -1075, -1065, -1055,
- -1044, -1034, -1024, -1014,
- -1004, -994, -984, -974,
- -964, -954, -944, -933,
- -923, -913, -903, -893,
- -883, -873, -863, -853,
- -843, -833, -822, -812,
- -802, -792, -782, -772,
- -762, -752, -742, -732,
- -722, -712, -702, -691,
- -682, -671, -662, -651,
- -641, -631, -621, -611,
- -601, -591, -581, -571,
- -561, -551, -541, -531,
- -521, -511, -501, -491,
- -480, -471, -460, -451,
- -440, -430, -420, -410,
- -400, -390, -380, -370,
- -360, -350, -340, -330,
- -320, -310, -300, -290,
- -280, -270, -260, -250,
- -240, -230, -220, -210,
- -199, -190, -179, -170,
- -159, -150, -139, -129,
- -119, -109, -99, -89,
- -79, -69, -59, -49,
- -39, -29, -19, -9,
- 1, 11, 21, 31,
- 41, 51, 61, 71,
- 81, 91, 101, 111,
- 121, 131, 141, 152,
- 161, 172, 181, 192,
- 202, 212, 222, 232,
- 242, 252, 262, 272,
- 282, 292, 302, 312,
- 322, 332, 342, 352,
- 362, 372, 382, 392,
- 402, 412, 422, 433,
- 442, 453, 462, 473,
- 483, 493, 503, 513,
- 523, 533, 543, 553,
- 563, 573, 583, 593,
- 603, 613, 623, 633,
- 643, 653, 664, 673,
- 684, 694, 704, 714,
- 724, 734, 744, 754,
- 764, 774, 784, 794,
- 804, 815, 825, 835,
- 845, 855, 865, 875,
- 885, 895, 905, 915,
- 925, 936, 946, 956,
- 966, 976, 986, 996,
- 1006, 1016, 1026, 1037,
- 1047, 1057, 1067, 1077,
- 1087, 1097, 1107, 1117,
- 1128, 1138, 1148, 1158,
- 1168, 1178, 1188, 1198,
- 1209, 1219, 1229, 1239,
- 1249, 1259, 1269, 1280,
- 1290, 1300, 1310, 1320,
- 1330, 1341, 1351, 1361,
- 1371, 1381, 1391, 1402,
- 1412, 1422, 1432, 1442,
- 1452, 1463, 1473, 1483,
- 1493, 1503, 1513, 1524,
- 1534, 1544, 1554, 1565,
- 1575, 1585, 1595, 1606,
- 1616, 1626, 1636, 1647,
- 1656, 1667, 1677, 1687,
- 1697, 1708, 1718, 1729,
- 1739, 1749, 1759, 1769,
- 1780, 1790, 1800, 1810,
- 1821, 1831, 1841, 1851,
- 1862, 1872, 1883, 1893,
- 1903, 1913, 1923, 1934,
- 1944, 1955, 1965, 1975,
- 1985, 1996, 2006, 2016,
- 2027, 2037, 2048, 2058,
- 2068, 2079, 2089, 2099,
- 2110, 2120, 2130, 2141,
- 2151, 2161, 2172, 2182,
- 2193, 2203, 2213, 2224,
- 2234, 2245, 2255, 2265,
- 2276, 2286, 2297, 2307,
- 2318, 2328, 2338, 2349,
- 2359, 2370, 2380, 2391,
- 2401, 2412, 2422, 2433,
- 2443, 2454, 2464, 2475,
- 2485, 2496, 2506, 2517,
- 2527, 2537, 2548, 2559,
- 2569, 2580, 2590, 2601,
- 2612, 2622, 2632, 2643,
- 2654, 2664, 2675, 2685,
- 2696, 2707, 2717, 2728,
- 2738, 2749, 2759, 2770,
- 2781, 2791, 2802, 2813,
- 2823, 2834, 2845, 2855,
- 2866, 2877, 2887, 2898,
- 2909, 2919, 2930, 2941,
- 2951, 2962, 2973, 2984,
- 2994, 3005, 3015, 3027,
- 3037, 3048, 3058, 3069,
- 3080, 3091, 3101, 3113,
- 3123, 3134, 3145, 3156,
- 3166, 3177, 3188, 3199,
- 3210, 3220, 3231, 3242,
- 3253, 3264, 3275, 3285,
- 3296, 3307, 3318, 3329,
- 3340, 3351, 3362, 3373,
- 3384, 3394, 3405, 3416,
- 3427, 3438, 3449, 3460,
- 3471, 3482, 3493, 3504,
- 3515, 3526, 3537, 3548,
- 3559, 3570, 3581, 3592,
- 3603, 3614, 3625, 3636,
- 3647, 3659, 3670, 3681,
- 3692, 3703, 3714, 3725,
- 3736, 3747, 3758, 3770,
- 3781, 3792, 3803, 3814,
- 3825, 3837, 3848, 3859,
- 3870, 3881, 3893, 3904,
- 3915, 3926, 3937, 3949,
- 3960, 3971, 3983, 3994,
- 4005, 4017, 4028, 4039,
- 4051, 4062, 4073, 4085,
- 4096, 4107, 4119, 4130,
- 4141, 4153, 4164, 4175,
- 4187, 4198, 4210, 4221,
- 4233, 4244, 4256, 4267,
- 4279, 4290, 4302, 4313,
- 4325, 4336, 4348, 4359,
- 4371, 4382, 4394, 4406,
- 4417, 4429, 4440, 4452,
- 4464, 4475, 4487, 4499,
- 4510, 4522, 4533, 4545,
- 4557, 4569, 4581, 4592,
- 4604, 4616, 4627, 4639,
- 4651, 4663, 4674, 4686,
- 4698, 4710, 4722, 4734,
- 4746, 4758, 4769, 4781,
- 4793, 4805, 4817, 4829,
- 4841, 4853, 4865, 4877,
- 4889, 4900, 4913, 4925,
- 4936, 4949, 4961, 4973,
- 4985, 4997, 5009, 5021,
- 5033, 5045, 5057, 5070,
- 5081, 5094, 5106, 5118,
- 5130, 5143, 5155, 5167,
- 5179, 5191, 5204, 5216,
- 5228, 5240, 5253, 5265,
- 5278, 5290, 5302, 5315,
- 5327, 5340, 5352, 5364,
- 5377, 5389, 5401, 5414,
- 5426, 5439, 5451, 5464,
- 5476, 5489, 5502, 5514,
- 5527, 5539, 5552, 5564,
- 5577, 5590, 5603, 5615,
- 5628, 5641, 5653, 5666,
- 5679, 5691, 5704, 5717,
- 5730, 5743, 5756, 5768,
- 5781, 5794, 5807, 5820,
- 5833, 5846, 5859, 5872,
- 5885, 5897, 5911, 5924,
- 5937, 5950, 5963, 5976,
- 5989, 6002, 6015, 6028,
- 6042, 6055, 6068, 6081,
- 6094, 6108, 6121, 6134,
- 6147, 6160, 6174, 6187,
- 6201, 6214, 6227, 6241,
- 6254, 6267, 6281, 6294,
- 6308, 6321, 6335, 6348,
- 6362, 6375, 6389, 6403,
- 6416, 6430, 6443, 6457,
- 6471, 6485, 6498, 6512,
- 6526, 6540, 6554, 6567,
- 6581, 6595, 6609, 6623,
- 6637, 6651, 6665, 6679,
- 6692, 6706, 6721, 6735,
- 6749, 6763, 6777, 6791,
- 6805, 6819, 6833, 6848,
- 6862, 6876, 6890, 6905,
- 6919, 6933, 6948, 6962,
- 6976, 6991, 7005, 7020,
- 7034, 7049, 7064, 7078,
- 7093, 7107, 7122, 7136,
- 7151, 7166, 7180, 7195,
- 7210, 7225, 7240, 7254,
- 7269, 7284, 7299, 7314,
- 7329, 7344, 7359, 7374,
- 7389, 7404, 7419, 7434,
- 7449, 7465, 7480, 7495,
- 7510, 7526, 7541, 7556,
- 7571, 7587, 7602, 7618,
- 7633, 7648, 7664, 7680,
- 7695, 7711, 7726, 7742,
- 7758, 7773, 7789, 7805,
- 7821, 7836, 7852, 7868,
- 7884, 7900, 7916, 7932,
- 7948, 7964, 7981, 7997,
- 8013, 8029, 8045, 8061,
- 8078, 8094, 8110, 8127,
- 8143, 8160, 8176, 8193,
- 8209, 8226, 8242, 8259,
- 8276, 8292, 8309, 8326,
- 8343, 8360, 8377, 8394,
- 8410, 8428, 8444, 8462,
- 8479, 8496, 8513, 8530,
- 8548, 8565, 8582, 8600,
- 8617, 8634, 8652, 8670,
- 8687, 8704, 8722, 8740,
- 8758, 8775, 8793, 8811,
- 8829, 8847, 8865, 8883,
- 8901, 8919, 8937, 8955,
- 8974, 8992, 9010, 9029,
- 9047, 9066, 9084, 9103,
- 9121, 9140, 9159, 9177,
- 9196, 9215, 9234, 9253,
- 9272, 9291, 9310, 9329,
- 9349, 9368, 9387, 9406,
- 9426, 9445, 9465, 9484,
- 9504, 9524, 9544, 9563,
- 9583, 9603, 9623, 9643,
- 9663, 9683, 9703, 9723,
- 9744, 9764, 9785, 9805,
- 9826, 9846, 9867, 9888,
- 9909, 9930, 9950, 9971,
- 9993, 10013, 10035, 10056,
- 10077, 10099, 10120, 10142,
- 10163, 10185, 10207, 10229,
- 10251, 10273, 10294, 10317,
- 10339, 10361, 10384, 10406,
- 10428, 10451, 10474, 10496,
- 10519, 10542, 10565, 10588,
- 10612, 10635, 10658, 10682,
- 10705, 10729, 10752, 10776,
- 10800, 10824, 10848, 10872,
- 10896, 10921, 10945, 10969,
- 10994, 11019, 11044, 11069,
- 11094, 11119, 11144, 11169,
- 11195, 11221, 11246, 11272,
- 11298, 11324, 11350, 11376,
- 11402, 11429, 11456, 11482,
- 11509, 11536, 11563, 11590,
- 11618, 11645, 11673, 11701,
- 11728, 11756, 11785, 11813,
- 11842, 11870, 11899, 11928,
- 11957, 11986, 12015, 12045,
- 12074, 12104, 12134, 12164,
- 12194, 12225, 12255, 12286,
- 12317, 12348, 12380, 12411,
- 12443, 12475, 12507, 12539,
- 12571, 12604, 12637, 12670,
- 12703, 12737, 12771, 12804,
- 12839, 12873, 12907, 12942,
- 12977, 13013, 13048, 13084,
- 13120, 13156, 13192, 13229,
- 13267, 13304, 13341, 13379,
- 13418, 13456, 13495, 13534,
- 13573, 13613, 13653, 13693,
- 13734, 13775, 13817, 13858,
- 13901, 13943, 13986, 14029,
- 14073, 14117, 14162, 14206,
- 14252, 14297, 14343, 14390,
- 14437, 14485, 14533, 14582,
- 14631, 14680, 14731, 14782,
- 14833, 14885, 14937, 14991,
- 15044, 15099, 15154, 15210,
- 15266, 15324, 15382, 15441,
- 15500, 15561, 15622, 15684,
- 15747, 15811, 15877, 15943,
- 16010, 16078, 16148, 16218,
- 16290, 16363, 16437, 16513,
- 16590, 16669, 16749, 16831,
- 16915, 17000, 17088, 17177,
- 17268, 17362, 17458, 17556,
- 17657, 17761, 17868, 17977,
- 18090, 18207, 18328, 18452,
- 18581, 18715, 18854, 18998,
- 19149, 19307, 19472, 19645,
- 19828, 20021, 20226, 20444,
- 20678, 20930, 21204, 21503,
- 21835, 22206, 22630, 23124,
- 23721, 24478, 25529, 27316,
-};
-
-/* tabledist - return a pseudo-randomly distributed value with mean mu and
- * std deviation sigma. Uses table lookup to approximate the desired
- * distribution, and a uniformly-distributed pseudo-random source.
- */
-static inline int tabledist(int mu, int sigma)
-{
- int x;
- int index;
- int sigmamod, sigmadiv;
-
- if (sigma == 0)
- return mu;
-
- index = (net_random() & (TABLESIZE-1));
- sigmamod = sigma%TABLEFACTOR;
- sigmadiv = sigma/TABLEFACTOR;
- x = sigmamod*disttable[index];
-
- if (x >= 0)
- x += TABLEFACTOR/2;
- else
- x -= TABLEFACTOR/2;
-
- x /= TABLEFACTOR;
- x += sigmadiv*disttable[index];
- x += mu;
- return x;
-}
-
-/* Enqueue packets with underlying discipline (fifo)
- * but mark them with current time first.
- */
-static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
- struct netem_skb_cb *cb = (struct netem_skb_cb *)skb->cb;
- psched_time_t now;
- long delay;
-
- pr_debug("netem_enqueue skb=%p @%lu\n", skb, jiffies);
-
- /* Random packet drop 0 => none, ~0 => all */
- if (q->loss && q->loss >= net_random()) {
- sch->stats.drops++;
- return 0; /* lie about loss so TCP doesn't know */
- }
-
-
- /* If doing simple delay then gap == 0 so all packets
- * go into the delayed holding queue
- * otherwise if doing out of order only "1 out of gap"
- * packets will be delayed.
- */
- if (q->counter < q->gap) {
- int ret;
-
- ++q->counter;
- ret = q->qdisc->enqueue(skb, q->qdisc);
- if (ret)
- sch->stats.drops++;
- return ret;
- }
-
- q->counter = 0;
-
- PSCHED_GET_TIME(now);
- if (q->jitter)
- delay = tabledist(q->latency, q->jitter);
- else
- delay = q->latency;
-
- PSCHED_TADD2(now, delay, cb->time_to_send);
-
- /* Always queue at tail to keep packets in order */
- __skb_queue_tail(&q->delayed, skb);
- sch->q.qlen++;
- sch->stats.bytes += skb->len;
- sch->stats.packets++;
- return 0;
-}
-
-/* Requeue packets but don't change time stamp */
-static int netem_requeue(struct sk_buff *skb, struct Qdisc *sch)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
- int ret;
-
- if ((ret = q->qdisc->ops->requeue(skb, q->qdisc)) == 0)
- sch->q.qlen++;
-
- return ret;
-}
-
-static unsigned int netem_drop(struct Qdisc* sch)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
- unsigned int len;
-
- if ((len = q->qdisc->ops->drop(q->qdisc)) != 0) {
- sch->q.qlen--;
- sch->stats.drops++;
- }
- return len;
-}
-
-/* Dequeue packet.
- * Move all packets that are ready to send from the delay holding
- * list to the underlying qdisc, then just call dequeue
- */
-static struct sk_buff *netem_dequeue(struct Qdisc *sch)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
- struct sk_buff *skb;
- psched_time_t now;
-
- PSCHED_GET_TIME(now);
- while ((skb = skb_peek(&q->delayed)) != NULL) {
- const struct netem_skb_cb *cb
- = (const struct netem_skb_cb *)skb->cb;
- long delay
- = PSCHED_US2JIFFIE(PSCHED_TDIFF(cb->time_to_send, now));
- pr_debug("netem_dequeue: delay queue %p@%lu %ld\n",
- skb, jiffies, delay);
-
- /* if more time remaining? */
- if (delay > 0) {
- mod_timer(&q->timer, jiffies + delay);
- break;
- }
- __skb_unlink(skb, &q->delayed);
-
- if (q->qdisc->enqueue(skb, q->qdisc))
- sch->stats.drops++;
- }
-
- skb = q->qdisc->dequeue(q->qdisc);
- if (skb)
- sch->q.qlen--;
- return skb;
-}
-
-static void netem_watchdog(unsigned long arg)
-{
- struct Qdisc *sch = (struct Qdisc *)arg;
-
- pr_debug("netem_watchdog: fired @%lu\n", jiffies);
- netif_schedule(sch->dev);
-}
-
-static void netem_reset(struct Qdisc *sch)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
-
- qdisc_reset(q->qdisc);
- skb_queue_purge(&q->delayed);
-
- sch->q.qlen = 0;
- del_timer_sync(&q->timer);
-}
-
-static int set_fifo_limit(struct Qdisc *q, int limit)
-{
- struct rtattr *rta;
- int ret = -ENOMEM;
-
- rta = kmalloc(RTA_LENGTH(sizeof(struct tc_fifo_qopt)), GFP_KERNEL);
- if (rta) {
- rta->rta_type = RTM_NEWQDISC;
- rta->rta_len = RTA_LENGTH(sizeof(struct tc_fifo_qopt));
- ((struct tc_fifo_qopt *)RTA_DATA(rta))->limit = limit;
-
- ret = q->ops->change(q, rta);
- kfree(rta);
- }
- return ret;
-}
-
-static int netem_change(struct Qdisc *sch, struct rtattr *opt)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
- struct tc_netem_qopt *qopt = RTA_DATA(opt);
- struct Qdisc *child;
- int ret;
-
- if (opt->rta_len < RTA_LENGTH(sizeof(*qopt)))
- return -EINVAL;
-
- child = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops);
- if (!child)
- return -EINVAL;
-
- ret = set_fifo_limit(child, qopt->limit);
- if (ret) {
- qdisc_destroy(child);
- return ret;
- }
-
- sch_tree_lock(sch);
- if (child) {
- child = xchg(&q->qdisc, child);
- if (child != &noop_qdisc)
- qdisc_destroy(child);
-
- q->latency = qopt->latency;
- q->jitter = qopt->jitter;
- q->limit = qopt->limit;
- q->gap = qopt->gap;
- q->loss = qopt->loss;
- }
- sch_tree_unlock(sch);
-
- return 0;
-}
-
-static int netem_init(struct Qdisc *sch, struct rtattr *opt)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
-
- if (!opt)
- return -EINVAL;
-
- skb_queue_head_init(&q->delayed);
- q->qdisc = &noop_qdisc;
-
- init_timer(&q->timer);
- q->timer.function = netem_watchdog;
- q->timer.data = (unsigned long) sch;
- q->counter = 0;
-
- return netem_change(sch, opt);
-}
-
-static void netem_destroy(struct Qdisc *sch)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
-
- del_timer_sync(&q->timer);
-}
-
-static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
-{
- struct netem_sched_data *q = (struct netem_sched_data *)sch->data;
- unsigned char *b = skb->tail;
- struct tc_netem_qopt qopt;
-
- qopt.latency = q->latency;
- qopt.jitter = q->jitter;
- qopt.limit = sch->dev->tx_queue_len;
- qopt.loss = q->loss;
- qopt.gap = q->gap;
-
- RTA_PUT(skb, TCA_OPTIONS, sizeof(qopt), &qopt);
-
- return skb->len;
-
-rtattr_failure:
- skb_trim(skb, b - skb->data);
- return -1;
-}
-
-static struct Qdisc_ops netem_qdisc_ops = {
- .id = "netem",
- .priv_size = sizeof(struct netem_sched_data),
- .enqueue = netem_enqueue,
- .dequeue = netem_dequeue,
- .requeue = netem_requeue,
- .drop = netem_drop,
- .init = netem_init,
- .reset = netem_reset,
- .destroy = netem_destroy,
- .change = netem_change,
- .dump = netem_dump,
- .owner = THIS_MODULE,
-};
-
-
-static int __init netem_module_init(void)
-{
- return register_qdisc(&netem_qdisc_ops);
-}
-static void __exit netem_module_exit(void)
-{
- unregister_qdisc(&netem_qdisc_ops);
-}
-module_init(netem_module_init)
-module_exit(netem_module_exit)
-MODULE_LICENSE("GPL");
+++ /dev/null
-#define KERNEL_ELFCLASS ELFCLASS32
-#define KERNEL_ELFDATA ELFDATA2LSB
-#define HOST_ELFCLASS ELFCLASS32
-#define HOST_ELFDATA ELFDATA2LSB
-#define MODULE_SYMBOL_PREFIX ""
+++ /dev/null
-#!/bin/sh
-# Generates a small Makefile used in the root of the output
-# directory, to allow make to be started from there.
-# The Makefile also allow for more convinient build of external modules
-
-# Usage
-# $1 - Kernel src directory
-# $2 - Output directory
-# $3 - version
-# $4 - patchlevel
-
-
-cat << EOF
-# Automatically generated by $0: don't edit
-
-VERSION = $3
-PATCHLEVEL = $4
-
-KERNELSRC := $1
-KERNELOUTPUT := $2
-
-MAKEFLAGS += --no-print-directory
-
-all:
- \$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT)
-
-%::
- \$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) \$@
-
-EOF
-
+++ /dev/null
-host-progs := modpost mk_elfconfig
-always := $(host-progs) empty.o
-
-modpost-objs := modpost.o file2alias.o sumversion.o
-
-# dependencies on generated files need to be listed explicitly
-
-$(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h
-
-quiet_cmd_elfconfig = MKELF $@
- cmd_elfconfig = $(obj)/mk_elfconfig $(ARCH) < $< > $@
-
-$(obj)/elfconfig.h: $(obj)/empty.o $(obj)/mk_elfconfig FORCE
- $(call if_changed,elfconfig)
-
-targets += elfconfig.h
+++ /dev/null
-/* empty file to figure out endianness / word size */
+++ /dev/null
-/* Simple code to turn various tables in an ELF file into alias definitions.
- * This deals with kernel datastructures where they should be
- * dealt with: in the kernel source.
- *
- * Copyright 2002-2003 Rusty Russell, IBM Corporation
- * 2003 Kai Germaschewski
- *
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- */
-
-#include "modpost.h"
-
-/* We use the ELF typedefs, since we can't rely on stdint.h being present. */
-
-#if KERNEL_ELFCLASS == ELFCLASS32
-typedef Elf32_Addr kernel_ulong_t;
-#else
-typedef Elf64_Addr kernel_ulong_t;
-#endif
-
-typedef Elf32_Word __u32;
-typedef Elf32_Half __u16;
-typedef unsigned char __u8;
-
-/* Big exception to the "don't include kernel headers into userspace, which
- * even potentially has different endianness and word sizes, since
- * we handle those differences explicitly below */
-#include "../../include/linux/mod_devicetable.h"
-
-#define ADD(str, sep, cond, field) \
-do { \
- strcat(str, sep); \
- if (cond) \
- sprintf(str + strlen(str), \
- sizeof(field) == 1 ? "%02X" : \
- sizeof(field) == 2 ? "%04X" : \
- sizeof(field) == 4 ? "%08X" : "", \
- field); \
- else \
- sprintf(str + strlen(str), "*"); \
-} while(0)
-
-/* Looks like "usb:vNpNdlNdhNdcNdscNdpNicNiscNipN" */
-static int do_usb_entry(const char *filename,
- struct usb_device_id *id, char *alias)
-{
- id->match_flags = TO_NATIVE(id->match_flags);
- id->idVendor = TO_NATIVE(id->idVendor);
- id->idProduct = TO_NATIVE(id->idProduct);
- id->bcdDevice_lo = TO_NATIVE(id->bcdDevice_lo);
- id->bcdDevice_hi = TO_NATIVE(id->bcdDevice_hi);
-
- /*
- * Some modules (visor) have empty slots as placeholder for
- * run-time specification that results in catch-all alias
- */
- if (!(id->idVendor | id->bDeviceClass | id->bInterfaceClass))
- return 1;
-
- strcpy(alias, "usb:");
- ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR,
- id->idVendor);
- ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT,
- id->idProduct);
- ADD(alias, "dl", id->match_flags&USB_DEVICE_ID_MATCH_DEV_LO,
- id->bcdDevice_lo);
- ADD(alias, "dh", id->match_flags&USB_DEVICE_ID_MATCH_DEV_HI,
- id->bcdDevice_hi);
- ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
- id->bDeviceClass);
- ADD(alias, "dsc",
- id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
- id->bDeviceSubClass);
- ADD(alias, "dp",
- id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
- id->bDeviceProtocol);
- ADD(alias, "ic",
- id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
- id->bInterfaceClass);
- ADD(alias, "isc",
- id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- id->bInterfaceSubClass);
- ADD(alias, "ip",
- id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
- id->bInterfaceProtocol);
- return 1;
-}
-
-/* Looks like: ieee1394:venNmoNspNverN */
-static int do_ieee1394_entry(const char *filename,
- struct ieee1394_device_id *id, char *alias)
-{
- id->match_flags = TO_NATIVE(id->match_flags);
- id->vendor_id = TO_NATIVE(id->vendor_id);
- id->model_id = TO_NATIVE(id->model_id);
- id->specifier_id = TO_NATIVE(id->specifier_id);
- id->version = TO_NATIVE(id->version);
-
- strcpy(alias, "ieee1394:");
- ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID,
- id->vendor_id);
- ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID,
- id->model_id);
- ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID,
- id->specifier_id);
- ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION,
- id->version);
-
- return 1;
-}
-
-/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
-static int do_pci_entry(const char *filename,
- struct pci_device_id *id, char *alias)
-{
- /* Class field can be divided into these three. */
- unsigned char baseclass, subclass, interface,
- baseclass_mask, subclass_mask, interface_mask;
-
- id->vendor = TO_NATIVE(id->vendor);
- id->device = TO_NATIVE(id->device);
- id->subvendor = TO_NATIVE(id->subvendor);
- id->subdevice = TO_NATIVE(id->subdevice);
- id->class = TO_NATIVE(id->class);
- id->class_mask = TO_NATIVE(id->class_mask);
-
- strcpy(alias, "pci:");
- ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor);
- ADD(alias, "d", id->device != PCI_ANY_ID, id->device);
- ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor);
- ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice);
-
- baseclass = (id->class) >> 16;
- baseclass_mask = (id->class_mask) >> 16;
- subclass = (id->class) >> 8;
- subclass_mask = (id->class_mask) >> 8;
- interface = id->class;
- interface_mask = id->class_mask;
-
- if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
- || (subclass_mask != 0 && subclass_mask != 0xFF)
- || (interface_mask != 0 && interface_mask != 0xFF)) {
- fprintf(stderr,
- "*** Warning: Can't handle masks in %s:%04X\n",
- filename, id->class_mask);
- return 0;
- }
-
- ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
- ADD(alias, "sc", subclass_mask == 0xFF, subclass);
- ADD(alias, "i", interface_mask == 0xFF, interface);
- return 1;
-}
-
-/* looks like: "ccw:tNmNdtNdmN" */
-static int do_ccw_entry(const char *filename,
- struct ccw_device_id *id, char *alias)
-{
- id->match_flags = TO_NATIVE(id->match_flags);
- id->cu_type = TO_NATIVE(id->cu_type);
- id->cu_model = TO_NATIVE(id->cu_model);
- id->dev_type = TO_NATIVE(id->dev_type);
- id->dev_model = TO_NATIVE(id->dev_model);
-
- strcpy(alias, "ccw:");
- ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
- id->cu_type);
- ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
- id->cu_model);
- ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
- id->dev_type);
- ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
- id->dev_model);
- return 1;
-}
-
-/* looks like: "pnp:dD" */
-static int do_pnp_entry(const char *filename,
- struct pnp_device_id *id, char *alias)
-{
- sprintf(alias, "pnp:d%s", id->id);
- return 1;
-}
-
-/* looks like: "pnp:cCdD..." */
-static int do_pnp_card_entry(const char *filename,
- struct pnp_card_device_id *id, char *alias)
-{
- int i;
-
- sprintf(alias, "pnp:c%s", id->id);
- for (i = 0; i < PNP_MAX_DEVICES; i++) {
- if (! *id->devs[i].id)
- break;
- sprintf(alias + strlen(alias), "d%s", id->devs[i].id);
- }
- return 1;
-}
-
-/* Ignore any prefix, eg. v850 prepends _ */
-static inline int sym_is(const char *symbol, const char *name)
-{
- const char *match;
-
- match = strstr(symbol, name);
- if (!match)
- return 0;
- return match[strlen(symbol)] == '\0';
-}
-
-static void do_table(void *symval, unsigned long size,
- unsigned long id_size,
- void *function,
- struct module *mod)
-{
- unsigned int i;
- char alias[500];
- int (*do_entry)(const char *, void *entry, char *alias) = function;
-
- if (size % id_size || size < id_size) {
- fprintf(stderr, "*** Warning: %s ids %lu bad size "
- "(each on %lu)\n", mod->name, size, id_size);
- }
- /* Leave last one: it's the terminator. */
- size -= id_size;
-
- for (i = 0; i < size; i += id_size) {
- if (do_entry(mod->name, symval+i, alias)) {
- /* Always end in a wildcard, for future extension */
- if (alias[strlen(alias)-1] != '*')
- strcat(alias, "*");
- buf_printf(&mod->dev_table_buf,
- "MODULE_ALIAS(\"%s\");\n", alias);
- }
- }
-}
-
-/* Create MODULE_ALIAS() statements.
- * At this time, we cannot write the actual output C source yet,
- * so we write into the mod->dev_table_buf buffer. */
-void handle_moddevtable(struct module *mod, struct elf_info *info,
- Elf_Sym *sym, const char *symname)
-{
- void *symval;
-
- /* We're looking for a section relative symbol */
- if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
- return;
-
- symval = (void *)info->hdr
- + info->sechdrs[sym->st_shndx].sh_offset
- + sym->st_value;
-
- if (sym_is(symname, "__mod_pci_device_table"))
- do_table(symval, sym->st_size, sizeof(struct pci_device_id),
- do_pci_entry, mod);
- else if (sym_is(symname, "__mod_usb_device_table"))
- do_table(symval, sym->st_size, sizeof(struct usb_device_id),
- do_usb_entry, mod);
- else if (sym_is(symname, "__mod_ieee1394_device_table"))
- do_table(symval, sym->st_size, sizeof(struct ieee1394_device_id),
- do_ieee1394_entry, mod);
- else if (sym_is(symname, "__mod_ccw_device_table"))
- do_table(symval, sym->st_size, sizeof(struct ccw_device_id),
- do_ccw_entry, mod);
- else if (sym_is(symname, "__mod_pnp_device_table"))
- do_table(symval, sym->st_size, sizeof(struct pnp_device_id),
- do_pnp_entry, mod);
- else if (sym_is(symname, "__mod_pnp_card_device_table"))
- do_table(symval, sym->st_size, sizeof(struct pnp_card_device_id),
- do_pnp_card_entry, mod);
-}
-
-/* Now add out buffered information to the generated C source */
-void add_moddevtable(struct buffer *buf, struct module *mod)
-{
- buf_printf(buf, "\n");
- buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
- free(mod->dev_table_buf.p);
-}
+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <elf.h>
-
-int
-main(int argc, char **argv)
-{
- unsigned char ei[EI_NIDENT];
- union { short s; char c[2]; } endian_test;
-
- if (argc != 2) {
- fprintf(stderr, "Error: no arch\n");
- }
- if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) {
- fprintf(stderr, "Error: input truncated\n");
- return 1;
- }
- if (memcmp(ei, ELFMAG, SELFMAG) != 0) {
- fprintf(stderr, "Error: not ELF\n");
- return 1;
- }
- switch (ei[EI_CLASS]) {
- case ELFCLASS32:
- printf("#define KERNEL_ELFCLASS ELFCLASS32\n");
- break;
- case ELFCLASS64:
- printf("#define KERNEL_ELFCLASS ELFCLASS64\n");
- break;
- default:
- abort();
- }
- switch (ei[EI_DATA]) {
- case ELFDATA2LSB:
- printf("#define KERNEL_ELFDATA ELFDATA2LSB\n");
- break;
- case ELFDATA2MSB:
- printf("#define KERNEL_ELFDATA ELFDATA2MSB\n");
- break;
- default:
- abort();
- }
-
- if (sizeof(unsigned long) == 4) {
- printf("#define HOST_ELFCLASS ELFCLASS32\n");
- } else if (sizeof(unsigned long) == 8) {
- printf("#define HOST_ELFCLASS ELFCLASS64\n");
- }
-
- endian_test.s = 0x0102;
- if (memcmp(endian_test.c, "\x01\x02", 2) == 0)
- printf("#define HOST_ELFDATA ELFDATA2MSB\n");
- else if (memcmp(endian_test.c, "\x02\x01", 2) == 0)
- printf("#define HOST_ELFDATA ELFDATA2LSB\n");
- else
- abort();
-
- if ((strcmp(argv[1], "v850") == 0) || (strcmp(argv[1], "h8300") == 0))
- printf("#define MODULE_SYMBOL_PREFIX \"_\"\n");
- else
- printf("#define MODULE_SYMBOL_PREFIX \"\"\n");
-
- return 0;
-}
-
+++ /dev/null
-/* Postprocess module symbol versions
- *
- * Copyright 2003 Kai Germaschewski
- * 2002-2003 Rusty Russell, IBM Corporation
- *
- * Based in part on module-init-tools/depmod.c,file2alias
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- * Usage: modpost vmlinux module1.o module2.o ...
- */
-
-#include <ctype.h>
-#include "modpost.h"
-
-/* Are we using CONFIG_MODVERSIONS? */
-int modversions = 0;
-/* Warn about undefined symbols? (do so if we have vmlinux) */
-int have_vmlinux = 0;
-
-void
-fatal(const char *fmt, ...)
-{
- va_list arglist;
-
- fprintf(stderr, "FATAL: ");
-
- va_start(arglist, fmt);
- vfprintf(stderr, fmt, arglist);
- va_end(arglist);
-
- exit(1);
-}
-
-void
-warn(const char *fmt, ...)
-{
- va_list arglist;
-
- fprintf(stderr, "WARNING: ");
-
- va_start(arglist, fmt);
- vfprintf(stderr, fmt, arglist);
- va_end(arglist);
-}
-
-void *do_nofail(void *ptr, const char *file, int line, const char *expr)
-{
- if (!ptr) {
- fatal("Memory allocation failure %s line %d: %s.\n",
- file, line, expr);
- }
- return ptr;
-}
-
-/* A list of all modules we processed */
-
-static struct module *modules;
-
-struct module *
-find_module(char *modname)
-{
- struct module *mod;
-
- for (mod = modules; mod; mod = mod->next)
- if (strcmp(mod->name, modname) == 0)
- break;
- return mod;
-}
-
-struct module *
-new_module(char *modname)
-{
- struct module *mod;
- char *p, *s;
-
- mod = NOFAIL(malloc(sizeof(*mod)));
- memset(mod, 0, sizeof(*mod));
- p = NOFAIL(strdup(modname));
-
- /* strip trailing .o */
- if ((s = strrchr(p, '.')) != NULL)
- if (strcmp(s, ".o") == 0)
- *s = '\0';
-
- /* add to list */
- mod->name = p;
- mod->next = modules;
- modules = mod;
-
- return mod;
-}
-
-/* A hash of all exported symbols,
- * struct symbol is also used for lists of unresolved symbols */
-
-#define SYMBOL_HASH_SIZE 1024
-
-struct symbol {
- struct symbol *next;
- struct module *module;
- unsigned int crc;
- int crc_valid;
- char name[0];
-};
-
-static struct symbol *symbolhash[SYMBOL_HASH_SIZE];
-
-/* This is based on the hash agorithm from gdbm, via tdb */
-static inline unsigned int tdb_hash(const char *name)
-{
- unsigned value; /* Used to compute the hash value. */
- unsigned i; /* Used to cycle through random values. */
-
- /* Set the initial value from the key size. */
- for (value = 0x238F13AF * strlen(name), i=0; name[i]; i++)
- value = (value + (((unsigned char *)name)[i] << (i*5 % 24)));
-
- return (1103515243 * value + 12345);
-}
-
-/* Allocate a new symbols for use in the hash of exported symbols or
- * the list of unresolved symbols per module */
-
-struct symbol *
-alloc_symbol(const char *name, struct symbol *next)
-{
- struct symbol *s = NOFAIL(malloc(sizeof(*s) + strlen(name) + 1));
-
- memset(s, 0, sizeof(*s));
- strcpy(s->name, name);
- s->next = next;
- return s;
-}
-
-/* For the hash of exported symbols */
-
-void
-new_symbol(const char *name, struct module *module, unsigned int *crc)
-{
- unsigned int hash;
- struct symbol *new;
-
- hash = tdb_hash(name) % SYMBOL_HASH_SIZE;
- new = symbolhash[hash] = alloc_symbol(name, symbolhash[hash]);
- new->module = module;
- if (crc) {
- new->crc = *crc;
- new->crc_valid = 1;
- }
-}
-
-struct symbol *
-find_symbol(const char *name)
-{
- struct symbol *s;
-
- /* For our purposes, .foo matches foo. PPC64 needs this. */
- if (name[0] == '.')
- name++;
-
- for (s = symbolhash[tdb_hash(name) % SYMBOL_HASH_SIZE]; s; s=s->next) {
- if (strcmp(s->name, name) == 0)
- return s;
- }
- return NULL;
-}
-
-/* Add an exported symbol - it may have already been added without a
- * CRC, in this case just update the CRC */
-void
-add_exported_symbol(const char *name, struct module *module, unsigned int *crc)
-{
- struct symbol *s = find_symbol(name);
-
- if (!s) {
- new_symbol(name, module, crc);
- return;
- }
- if (crc) {
- s->crc = *crc;
- s->crc_valid = 1;
- }
-}
-
-void *
-grab_file(const char *filename, unsigned long *size)
-{
- struct stat st;
- void *map;
- int fd;
-
- fd = open(filename, O_RDONLY);
- if (fd < 0 || fstat(fd, &st) != 0)
- return NULL;
-
- *size = st.st_size;
- map = mmap(NULL, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
- close(fd);
-
- if (map == MAP_FAILED)
- return NULL;
- return map;
-}
-
-/*
- Return a copy of the next line in a mmap'ed file.
- spaces in the beginning of the line is trimmed away.
- Return a pointer to a static buffer.
-*/
-char*
-get_next_line(unsigned long *pos, void *file, unsigned long size)
-{
- static char line[4096];
- int skip = 1;
- size_t len = 0;
- char *p = (char *)file + *pos;
- char *s = line;
-
- for (; *pos < size ; (*pos)++)
- {
- if (skip && isspace(*p)) {
- p++;
- continue;
- }
- skip = 0;
- if (*p != '\n' && (*pos < size)) {
- len++;
- *s++ = *p++;
- if (len > 4095)
- break; /* Too long, stop */
- } else {
- /* End of string */
- *s = '\0';
- return line;
- }
- }
- /* End of buffer */
- return NULL;
-}
-
-void
-release_file(void *file, unsigned long size)
-{
- munmap(file, size);
-}
-
-void
-parse_elf(struct elf_info *info, const char *filename)
-{
- unsigned int i;
- Elf_Ehdr *hdr = info->hdr;
- Elf_Shdr *sechdrs;
- Elf_Sym *sym;
-
- hdr = grab_file(filename, &info->size);
- if (!hdr) {
- perror(filename);
- abort();
- }
- info->hdr = hdr;
- if (info->size < sizeof(*hdr))
- goto truncated;
-
- /* Fix endianness in ELF header */
- hdr->e_shoff = TO_NATIVE(hdr->e_shoff);
- hdr->e_shstrndx = TO_NATIVE(hdr->e_shstrndx);
- hdr->e_shnum = TO_NATIVE(hdr->e_shnum);
- hdr->e_machine = TO_NATIVE(hdr->e_machine);
- sechdrs = (void *)hdr + hdr->e_shoff;
- info->sechdrs = sechdrs;
-
- /* Fix endianness in section headers */
- for (i = 0; i < hdr->e_shnum; i++) {
- sechdrs[i].sh_type = TO_NATIVE(sechdrs[i].sh_type);
- sechdrs[i].sh_offset = TO_NATIVE(sechdrs[i].sh_offset);
- sechdrs[i].sh_size = TO_NATIVE(sechdrs[i].sh_size);
- sechdrs[i].sh_link = TO_NATIVE(sechdrs[i].sh_link);
- sechdrs[i].sh_name = TO_NATIVE(sechdrs[i].sh_name);
- }
- /* Find symbol table. */
- for (i = 1; i < hdr->e_shnum; i++) {
- const char *secstrings
- = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
-
- if (sechdrs[i].sh_offset > info->size)
- goto truncated;
- if (strcmp(secstrings+sechdrs[i].sh_name, ".modinfo") == 0) {
- info->modinfo = (void *)hdr + sechdrs[i].sh_offset;
- info->modinfo_len = sechdrs[i].sh_size;
- }
- if (sechdrs[i].sh_type != SHT_SYMTAB)
- continue;
-
- info->symtab_start = (void *)hdr + sechdrs[i].sh_offset;
- info->symtab_stop = (void *)hdr + sechdrs[i].sh_offset
- + sechdrs[i].sh_size;
- info->strtab = (void *)hdr +
- sechdrs[sechdrs[i].sh_link].sh_offset;
- }
- if (!info->symtab_start) {
- fprintf(stderr, "modpost: %s no symtab?\n", filename);
- abort();
- }
- /* Fix endianness in symbols */
- for (sym = info->symtab_start; sym < info->symtab_stop; sym++) {
- sym->st_shndx = TO_NATIVE(sym->st_shndx);
- sym->st_name = TO_NATIVE(sym->st_name);
- sym->st_value = TO_NATIVE(sym->st_value);
- sym->st_size = TO_NATIVE(sym->st_size);
- }
- return;
-
- truncated:
- fprintf(stderr, "modpost: %s is truncated.\n", filename);
- abort();
-}
-
-void
-parse_elf_finish(struct elf_info *info)
-{
- release_file(info->hdr, info->size);
-}
-
-#define CRC_PFX MODULE_SYMBOL_PREFIX "__crc_"
-#define KSYMTAB_PFX MODULE_SYMBOL_PREFIX "__ksymtab_"
-
-void
-handle_modversions(struct module *mod, struct elf_info *info,
- Elf_Sym *sym, const char *symname)
-{
- unsigned int crc;
-
- switch (sym->st_shndx) {
- case SHN_COMMON:
- fprintf(stderr, "*** Warning: \"%s\" [%s] is COMMON symbol\n",
- symname, mod->name);
- break;
- case SHN_ABS:
- /* CRC'd symbol */
- if (memcmp(symname, CRC_PFX, strlen(CRC_PFX)) == 0) {
- crc = (unsigned int) sym->st_value;
- add_exported_symbol(symname + strlen(CRC_PFX),
- mod, &crc);
- modversions = 1;
- }
- break;
- case SHN_UNDEF:
- /* undefined symbol */
- if (ELF_ST_BIND(sym->st_info) != STB_GLOBAL)
- break;
- /* ignore global offset table */
- if (strcmp(symname, "_GLOBAL_OFFSET_TABLE_") == 0)
- break;
- /* ignore __this_module, it will be resolved shortly */
- if (strcmp(symname, MODULE_SYMBOL_PREFIX "__this_module") == 0)
- break;
-#ifdef STT_REGISTER
- if (info->hdr->e_machine == EM_SPARC ||
- info->hdr->e_machine == EM_SPARCV9) {
- /* Ignore register directives. */
- if (ELF_ST_TYPE(sym->st_info) == STT_REGISTER)
- break;
- }
-#endif
-
- if (memcmp(symname, MODULE_SYMBOL_PREFIX,
- strlen(MODULE_SYMBOL_PREFIX)) == 0)
- mod->unres = alloc_symbol(symname +
- strlen(MODULE_SYMBOL_PREFIX),
- mod->unres);
- break;
- default:
- /* All exported symbols */
- if (memcmp(symname, KSYMTAB_PFX, strlen(KSYMTAB_PFX)) == 0) {
- add_exported_symbol(symname + strlen(KSYMTAB_PFX),
- mod, NULL);
- }
- break;
- }
-}
-
-int
-is_vmlinux(const char *modname)
-{
- const char *myname;
-
- if ((myname = strrchr(modname, '/')))
- myname++;
- else
- myname = modname;
-
- return strcmp(myname, "vmlinux") == 0;
-}
-
-void
-read_symbols(char *modname)
-{
- const char *symname;
- struct module *mod;
- struct elf_info info = { };
- Elf_Sym *sym;
-
- parse_elf(&info, modname);
-
- mod = new_module(modname);
-
- /* When there's no vmlinux, don't print warnings about
- * unresolved symbols (since there'll be too many ;) */
- if (is_vmlinux(modname)) {
- unsigned int fake_crc = 0;
- have_vmlinux = 1;
- /* May not have this if !CONFIG_MODULE_UNLOAD: fake it.
- If it appears, we'll get the real CRC. */
- add_exported_symbol("cleanup_module", mod, &fake_crc);
- add_exported_symbol("struct_module", mod, &fake_crc);
- mod->skip = 1;
- }
-
- for (sym = info.symtab_start; sym < info.symtab_stop; sym++) {
- symname = info.strtab + sym->st_name;
-
- handle_modversions(mod, &info, sym, symname);
- handle_moddevtable(mod, &info, sym, symname);
- }
- maybe_frob_version(modname, info.modinfo, info.modinfo_len,
- (void *)info.modinfo - (void *)info.hdr);
- parse_elf_finish(&info);
-
- /* Our trick to get versioning for struct_module - it's
- * never passed as an argument to an exported function, so
- * the automatic versioning doesn't pick it up, but it's really
- * important anyhow */
- if (modversions) {
- mod->unres = alloc_symbol("struct_module", mod->unres);
-
- /* Always version init_module and cleanup_module, in
- * case module doesn't have its own. */
- mod->unres = alloc_symbol("init_module", mod->unres);
- mod->unres = alloc_symbol("cleanup_module", mod->unres);
- }
-}
-
-#define SZ 500
-
-/* We first write the generated file into memory using the
- * following helper, then compare to the file on disk and
- * only update the later if anything changed */
-
-void __attribute__((format(printf, 2, 3)))
-buf_printf(struct buffer *buf, const char *fmt, ...)
-{
- char tmp[SZ];
- int len;
- va_list ap;
-
- va_start(ap, fmt);
- len = vsnprintf(tmp, SZ, fmt, ap);
- if (buf->size - buf->pos < len + 1) {
- buf->size += 128;
- buf->p = realloc(buf->p, buf->size);
- }
- strncpy(buf->p + buf->pos, tmp, len + 1);
- buf->pos += len;
- va_end(ap);
-}
-
-void
-buf_write(struct buffer *buf, const char *s, int len)
-{
- if (buf->size - buf->pos < len) {
- buf->size += len;
- buf->p = realloc(buf->p, buf->size);
- }
- strncpy(buf->p + buf->pos, s, len);
- buf->pos += len;
-}
-
-/* Header for the generated file */
-
-void
-add_header(struct buffer *b)
-{
- buf_printf(b, "#include <linux/module.h>\n");
- buf_printf(b, "#include <linux/vermagic.h>\n");
- buf_printf(b, "#include <linux/compiler.h>\n");
- buf_printf(b, "\n");
- buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
- buf_printf(b, "\n");
- buf_printf(b, "#undef unix\n"); /* We have a module called "unix" */
- buf_printf(b, "struct module __this_module\n");
- buf_printf(b, "__attribute__((section(\".gnu.linkonce.this_module\"))) = {\n");
- buf_printf(b, " .name = __stringify(KBUILD_MODNAME),\n");
- buf_printf(b, " .init = init_module,\n");
- buf_printf(b, "#ifdef CONFIG_MODULE_UNLOAD\n");
- buf_printf(b, " .exit = cleanup_module,\n");
- buf_printf(b, "#endif\n");
- buf_printf(b, "};\n");
-}
-
-/* Record CRCs for unresolved symbols */
-
-void
-add_versions(struct buffer *b, struct module *mod)
-{
- struct symbol *s, *exp;
-
- for (s = mod->unres; s; s = s->next) {
- exp = find_symbol(s->name);
- if (!exp || exp->module == mod) {
- if (have_vmlinux)
- fprintf(stderr, "*** Warning: \"%s\" [%s.ko] "
- "undefined!\n", s->name, mod->name);
- continue;
- }
- s->module = exp->module;
- s->crc_valid = exp->crc_valid;
- s->crc = exp->crc;
- }
-
- if (!modversions)
- return;
-
- buf_printf(b, "\n");
- buf_printf(b, "static const struct modversion_info ____versions[]\n");
- buf_printf(b, "__attribute_used__\n");
- buf_printf(b, "__attribute__((section(\"__versions\"))) = {\n");
-
- for (s = mod->unres; s; s = s->next) {
- if (!s->module) {
- continue;
- }
- if (!s->crc_valid) {
- fprintf(stderr, "*** Warning: \"%s\" [%s.ko] "
- "has no CRC!\n",
- s->name, mod->name);
- continue;
- }
- buf_printf(b, "\t{ %#8x, \"%s\" },\n", s->crc, s->name);
- }
-
- buf_printf(b, "};\n");
-}
-
-void
-add_depends(struct buffer *b, struct module *mod, struct module *modules)
-{
- struct symbol *s;
- struct module *m;
- int first = 1;
-
- for (m = modules; m; m = m->next) {
- m->seen = is_vmlinux(m->name);
- }
-
- buf_printf(b, "\n");
- buf_printf(b, "static const char __module_depends[]\n");
- buf_printf(b, "__attribute_used__\n");
- buf_printf(b, "__attribute__((section(\".modinfo\"))) =\n");
- buf_printf(b, "\"depends=");
- for (s = mod->unres; s; s = s->next) {
- if (!s->module)
- continue;
-
- if (s->module->seen)
- continue;
-
- s->module->seen = 1;
- buf_printf(b, "%s%s", first ? "" : ",",
- strrchr(s->module->name, '/') + 1);
- first = 0;
- }
- buf_printf(b, "\";\n");
-}
-
-void
-write_if_changed(struct buffer *b, const char *fname)
-{
- char *tmp;
- FILE *file;
- struct stat st;
-
- file = fopen(fname, "r");
- if (!file)
- goto write;
-
- if (fstat(fileno(file), &st) < 0)
- goto close_write;
-
- if (st.st_size != b->pos)
- goto close_write;
-
- tmp = NOFAIL(malloc(b->pos));
- if (fread(tmp, 1, b->pos, file) != b->pos)
- goto free_write;
-
- if (memcmp(tmp, b->p, b->pos) != 0)
- goto free_write;
-
- free(tmp);
- fclose(file);
- return;
-
- free_write:
- free(tmp);
- close_write:
- fclose(file);
- write:
- file = fopen(fname, "w");
- if (!file) {
- perror(fname);
- exit(1);
- }
- if (fwrite(b->p, 1, b->pos, file) != b->pos) {
- perror(fname);
- exit(1);
- }
- fclose(file);
-}
-
-void
-read_dump(const char *fname)
-{
- unsigned long size, pos = 0;
- void *file = grab_file(fname, &size);
- char *line;
-
- if (!file)
- /* No symbol versions, silently ignore */
- return;
-
- while ((line = get_next_line(&pos, file, size))) {
- char *symname, *modname, *d;
- unsigned int crc;
- struct module *mod;
-
- if (!(symname = strchr(line, '\t')))
- goto fail;
- *symname++ = '\0';
- if (!(modname = strchr(symname, '\t')))
- goto fail;
- *modname++ = '\0';
- if (strchr(modname, '\t'))
- goto fail;
- crc = strtoul(line, &d, 16);
- if (*symname == '\0' || *modname == '\0' || *d != '\0')
- goto fail;
-
- if (!(mod = find_module(modname))) {
- if (is_vmlinux(modname)) {
- modversions = 1;
- have_vmlinux = 1;
- }
- mod = new_module(NOFAIL(strdup(modname)));
- mod->skip = 1;
- }
- add_exported_symbol(symname, mod, &crc);
- }
- return;
-fail:
- fatal("parse error in symbol dump file\n");
-}
-
-void
-write_dump(const char *fname)
-{
- struct buffer buf = { };
- struct symbol *symbol;
- int n;
-
- for (n = 0; n < SYMBOL_HASH_SIZE ; n++) {
- symbol = symbolhash[n];
- while (symbol) {
- symbol = symbol->next;
- }
- }
-
- for (n = 0; n < SYMBOL_HASH_SIZE ; n++) {
- symbol = symbolhash[n];
- while (symbol) {
- buf_printf(&buf, "0x%08x\t%s\t%s\n", symbol->crc,
- symbol->name, symbol->module->name);
- symbol = symbol->next;
- }
- }
- write_if_changed(&buf, fname);
-}
-
-int
-main(int argc, char **argv)
-{
- struct module *mod;
- struct buffer buf = { };
- char fname[SZ];
- char *dump_read = NULL, *dump_write = NULL;
- int opt;
-
- while ((opt = getopt(argc, argv, "i:o:")) != -1) {
- switch(opt) {
- case 'i':
- dump_read = optarg;
- break;
- case 'o':
- dump_write = optarg;
- break;
- default:
- exit(1);
- }
- }
-
- if (dump_read)
- read_dump(dump_read);
-
- while (optind < argc) {
- read_symbols(argv[optind++]);
- }
-
- for (mod = modules; mod; mod = mod->next) {
- if (mod->skip)
- continue;
-
- buf.pos = 0;
-
- add_header(&buf);
- add_versions(&buf, mod);
- add_depends(&buf, mod, modules);
- add_moddevtable(&buf, mod);
-
- sprintf(fname, "%s.mod.c", mod->name);
- write_if_changed(&buf, fname);
- }
-
- if (dump_write)
- write_dump(dump_write);
-
- return 0;
-}
-
+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <elf.h>
-
-#include "elfconfig.h"
-
-#if KERNEL_ELFCLASS == ELFCLASS32
-
-#define Elf_Ehdr Elf32_Ehdr
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define ELF_ST_BIND ELF32_ST_BIND
-#define ELF_ST_TYPE ELF32_ST_TYPE
-
-#else
-
-#define Elf_Ehdr Elf64_Ehdr
-#define Elf_Shdr Elf64_Shdr
-#define Elf_Sym Elf64_Sym
-#define ELF_ST_BIND ELF64_ST_BIND
-#define ELF_ST_TYPE ELF64_ST_TYPE
-
-#endif
-
-#if KERNEL_ELFDATA != HOST_ELFDATA
-
-static inline void __endian(const void *src, void *dest, unsigned int size)
-{
- unsigned int i;
- for (i = 0; i < size; i++)
- ((unsigned char*)dest)[i] = ((unsigned char*)src)[size - i-1];
-}
-
-
-
-#define TO_NATIVE(x) \
-({ \
- typeof(x) __x; \
- __endian(&(x), &(__x), sizeof(__x)); \
- __x; \
-})
-
-#else /* endianness matches */
-
-#define TO_NATIVE(x) (x)
-
-#endif
-
-#define NOFAIL(ptr) do_nofail((ptr), __FILE__, __LINE__, #ptr)
-void *do_nofail(void *ptr, const char *file, int line, const char *expr);
-
-struct buffer {
- char *p;
- int pos;
- int size;
-};
-
-void __attribute__((format(printf, 2, 3)))
-buf_printf(struct buffer *buf, const char *fmt, ...);
-
-void
-buf_write(struct buffer *buf, const char *s, int len);
-
-struct module {
- struct module *next;
- const char *name;
- struct symbol *unres;
- int seen;
- int skip;
- struct buffer dev_table_buf;
-};
-
-struct elf_info {
- unsigned long size;
- Elf_Ehdr *hdr;
- Elf_Shdr *sechdrs;
- Elf_Sym *symtab_start;
- Elf_Sym *symtab_stop;
- const char *strtab;
- char *modinfo;
- unsigned int modinfo_len;
-};
-
-void handle_moddevtable(struct module *mod, struct elf_info *info,
- Elf_Sym *sym, const char *symname);
-
-void add_moddevtable(struct buffer *buf, struct module *mod);
-
-void maybe_frob_version(const char *modfilename,
- void *modinfo,
- unsigned long modinfo_len,
- unsigned long modinfo_offset);
-
-void *grab_file(const char *filename, unsigned long *size);
-char* get_next_line(unsigned long *pos, void *file, unsigned long size);
-void release_file(void *file, unsigned long size);
+++ /dev/null
-#include <netinet/in.h>
-#include <stdint.h>
-#include <ctype.h>
-#include <errno.h>
-#include <string.h>
-#include "modpost.h"
-
-/* Parse tag=value strings from .modinfo section */
-static char *next_string(char *string, unsigned long *secsize)
-{
- /* Skip non-zero chars */
- while (string[0]) {
- string++;
- if ((*secsize)-- <= 1)
- return NULL;
- }
-
- /* Skip any zero padding. */
- while (!string[0]) {
- string++;
- if ((*secsize)-- <= 1)
- return NULL;
- }
- return string;
-}
-
-static char *get_modinfo(void *modinfo, unsigned long modinfo_len,
- const char *tag)
-{
- char *p;
- unsigned int taglen = strlen(tag);
- unsigned long size = modinfo_len;
-
- for (p = modinfo; p; p = next_string(p, &size)) {
- if (strncmp(p, tag, taglen) == 0 && p[taglen] == '=')
- return p + taglen + 1;
- }
- return NULL;
-}
-
-/*
- * Stolen form Cryptographic API.
- *
- * MD4 Message Digest Algorithm (RFC1320).
- *
- * Implementation derived from Andrew Tridgell and Steve French's
- * CIFS MD4 implementation, and the cryptoapi implementation
- * originally based on the public domain implementation written
- * by Colin Plumb in 1993.
- *
- * Copyright (c) Andrew Tridgell 1997-1998.
- * Modified by Steve French (sfrench@us.ibm.com) 2002
- * Copyright (c) Cryptoapi developers.
- * Copyright (c) 2002 David S. Miller (davem@redhat.com)
- * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-#define MD4_DIGEST_SIZE 16
-#define MD4_HMAC_BLOCK_SIZE 64
-#define MD4_BLOCK_WORDS 16
-#define MD4_HASH_WORDS 4
-
-struct md4_ctx {
- uint32_t hash[MD4_HASH_WORDS];
- uint32_t block[MD4_BLOCK_WORDS];
- uint64_t byte_count;
-};
-
-static inline uint32_t lshift(uint32_t x, unsigned int s)
-{
- x &= 0xFFFFFFFF;
- return ((x << s) & 0xFFFFFFFF) | (x >> (32 - s));
-}
-
-static inline uint32_t F(uint32_t x, uint32_t y, uint32_t z)
-{
- return (x & y) | ((~x) & z);
-}
-
-static inline uint32_t G(uint32_t x, uint32_t y, uint32_t z)
-{
- return (x & y) | (x & z) | (y & z);
-}
-
-static inline uint32_t H(uint32_t x, uint32_t y, uint32_t z)
-{
- return x ^ y ^ z;
-}
-
-#define ROUND1(a,b,c,d,k,s) (a = lshift(a + F(b,c,d) + k, s))
-#define ROUND2(a,b,c,d,k,s) (a = lshift(a + G(b,c,d) + k + (uint32_t)0x5A827999,s))
-#define ROUND3(a,b,c,d,k,s) (a = lshift(a + H(b,c,d) + k + (uint32_t)0x6ED9EBA1,s))
-
-/* XXX: this stuff can be optimized */
-static inline void le32_to_cpu_array(uint32_t *buf, unsigned int words)
-{
- while (words--) {
- *buf = ntohl(*buf);
- buf++;
- }
-}
-
-static inline void cpu_to_le32_array(uint32_t *buf, unsigned int words)
-{
- while (words--) {
- *buf = htonl(*buf);
- buf++;
- }
-}
-
-static void md4_transform(uint32_t *hash, uint32_t const *in)
-{
- uint32_t a, b, c, d;
-
- a = hash[0];
- b = hash[1];
- c = hash[2];
- d = hash[3];
-
- ROUND1(a, b, c, d, in[0], 3);
- ROUND1(d, a, b, c, in[1], 7);
- ROUND1(c, d, a, b, in[2], 11);
- ROUND1(b, c, d, a, in[3], 19);
- ROUND1(a, b, c, d, in[4], 3);
- ROUND1(d, a, b, c, in[5], 7);
- ROUND1(c, d, a, b, in[6], 11);
- ROUND1(b, c, d, a, in[7], 19);
- ROUND1(a, b, c, d, in[8], 3);
- ROUND1(d, a, b, c, in[9], 7);
- ROUND1(c, d, a, b, in[10], 11);
- ROUND1(b, c, d, a, in[11], 19);
- ROUND1(a, b, c, d, in[12], 3);
- ROUND1(d, a, b, c, in[13], 7);
- ROUND1(c, d, a, b, in[14], 11);
- ROUND1(b, c, d, a, in[15], 19);
-
- ROUND2(a, b, c, d,in[ 0], 3);
- ROUND2(d, a, b, c, in[4], 5);
- ROUND2(c, d, a, b, in[8], 9);
- ROUND2(b, c, d, a, in[12], 13);
- ROUND2(a, b, c, d, in[1], 3);
- ROUND2(d, a, b, c, in[5], 5);
- ROUND2(c, d, a, b, in[9], 9);
- ROUND2(b, c, d, a, in[13], 13);
- ROUND2(a, b, c, d, in[2], 3);
- ROUND2(d, a, b, c, in[6], 5);
- ROUND2(c, d, a, b, in[10], 9);
- ROUND2(b, c, d, a, in[14], 13);
- ROUND2(a, b, c, d, in[3], 3);
- ROUND2(d, a, b, c, in[7], 5);
- ROUND2(c, d, a, b, in[11], 9);
- ROUND2(b, c, d, a, in[15], 13);
-
- ROUND3(a, b, c, d,in[ 0], 3);
- ROUND3(d, a, b, c, in[8], 9);
- ROUND3(c, d, a, b, in[4], 11);
- ROUND3(b, c, d, a, in[12], 15);
- ROUND3(a, b, c, d, in[2], 3);
- ROUND3(d, a, b, c, in[10], 9);
- ROUND3(c, d, a, b, in[6], 11);
- ROUND3(b, c, d, a, in[14], 15);
- ROUND3(a, b, c, d, in[1], 3);
- ROUND3(d, a, b, c, in[9], 9);
- ROUND3(c, d, a, b, in[5], 11);
- ROUND3(b, c, d, a, in[13], 15);
- ROUND3(a, b, c, d, in[3], 3);
- ROUND3(d, a, b, c, in[11], 9);
- ROUND3(c, d, a, b, in[7], 11);
- ROUND3(b, c, d, a, in[15], 15);
-
- hash[0] += a;
- hash[1] += b;
- hash[2] += c;
- hash[3] += d;
-}
-
-static inline void md4_transform_helper(struct md4_ctx *ctx)
-{
- le32_to_cpu_array(ctx->block, sizeof(ctx->block) / sizeof(uint32_t));
- md4_transform(ctx->hash, ctx->block);
-}
-
-static void md4_init(struct md4_ctx *mctx)
-{
- mctx->hash[0] = 0x67452301;
- mctx->hash[1] = 0xefcdab89;
- mctx->hash[2] = 0x98badcfe;
- mctx->hash[3] = 0x10325476;
- mctx->byte_count = 0;
-}
-
-static void md4_update(struct md4_ctx *mctx,
- const unsigned char *data, unsigned int len)
-{
- const uint32_t avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
-
- mctx->byte_count += len;
-
- if (avail > len) {
- memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
- data, len);
- return;
- }
-
- memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
- data, avail);
-
- md4_transform_helper(mctx);
- data += avail;
- len -= avail;
-
- while (len >= sizeof(mctx->block)) {
- memcpy(mctx->block, data, sizeof(mctx->block));
- md4_transform_helper(mctx);
- data += sizeof(mctx->block);
- len -= sizeof(mctx->block);
- }
-
- memcpy(mctx->block, data, len);
-}
-
-static void md4_final_ascii(struct md4_ctx *mctx, char *out, unsigned int len)
-{
- const unsigned int offset = mctx->byte_count & 0x3f;
- char *p = (char *)mctx->block + offset;
- int padding = 56 - (offset + 1);
-
- *p++ = 0x80;
- if (padding < 0) {
- memset(p, 0x00, padding + sizeof (uint64_t));
- md4_transform_helper(mctx);
- p = (char *)mctx->block;
- padding = 56;
- }
-
- memset(p, 0, padding);
- mctx->block[14] = mctx->byte_count << 3;
- mctx->block[15] = mctx->byte_count >> 29;
- le32_to_cpu_array(mctx->block, (sizeof(mctx->block) -
- sizeof(uint64_t)) / sizeof(uint32_t));
- md4_transform(mctx->hash, mctx->block);
- cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(uint32_t));
-
- snprintf(out, len, "%08X%08X%08X%08X",
- mctx->hash[0], mctx->hash[1], mctx->hash[2], mctx->hash[3]);
-}
-
-static inline void add_char(unsigned char c, struct md4_ctx *md)
-{
- md4_update(md, &c, 1);
-}
-
-static int parse_string(const char *file, unsigned long len,
- struct md4_ctx *md)
-{
- unsigned long i;
-
- add_char(file[0], md);
- for (i = 1; i < len; i++) {
- add_char(file[i], md);
- if (file[i] == '"' && file[i-1] != '\\')
- break;
- }
- return i;
-}
-
-static int parse_comment(const char *file, unsigned long len)
-{
- unsigned long i;
-
- for (i = 2; i < len; i++) {
- if (file[i-1] == '*' && file[i] == '/')
- break;
- }
- return i;
-}
-
-/* FIXME: Handle .s files differently (eg. # starts comments) --RR */
-static int parse_file(const char *fname, struct md4_ctx *md)
-{
- char *file;
- unsigned long i, len;
-
- file = grab_file(fname, &len);
- if (!file)
- return 0;
-
- for (i = 0; i < len; i++) {
- /* Collapse and ignore \ and CR. */
- if (file[i] == '\\' && (i+1 < len) && file[i+1] == '\n') {
- i++;
- continue;
- }
-
- /* Ignore whitespace */
- if (isspace(file[i]))
- continue;
-
- /* Handle strings as whole units */
- if (file[i] == '"') {
- i += parse_string(file+i, len - i, md);
- continue;
- }
-
- /* Comments: ignore */
- if (file[i] == '/' && file[i+1] == '*') {
- i += parse_comment(file+i, len - i);
- continue;
- }
-
- add_char(file[i], md);
- }
- release_file(file, len);
- return 1;
-}
-
-/* We have dir/file.o. Open dir/.file.o.cmd, look for deps_ line to
- * figure out source file. */
-static int parse_source_files(const char *objfile, struct md4_ctx *md)
-{
- char *cmd, *file, *line, *dir;
- const char *base;
- unsigned long flen, pos = 0;
- int dirlen, ret = 0, check_files = 0;
-
- cmd = NOFAIL(malloc(strlen(objfile) + sizeof("..cmd")));
-
- base = strrchr(objfile, '/');
- if (base) {
- base++;
- dirlen = base - objfile;
- sprintf(cmd, "%.*s.%s.cmd", dirlen, objfile, base);
- } else {
- dirlen = 0;
- sprintf(cmd, ".%s.cmd", objfile);
- }
- dir = NOFAIL(malloc(dirlen + 1));
- strncpy(dir, objfile, dirlen);
- dir[dirlen] = '\0';
-
- file = grab_file(cmd, &flen);
- if (!file) {
- fprintf(stderr, "Warning: could not find %s for %s\n",
- cmd, objfile);
- goto out;
- }
-
- /* There will be a line like so:
- deps_drivers/net/dummy.o := \
- drivers/net/dummy.c \
- $(wildcard include/config/net/fastroute.h) \
- include/linux/config.h \
- $(wildcard include/config/h.h) \
- include/linux/module.h \
-
- Sum all files in the same dir or subdirs.
- */
- while ((line = get_next_line(&pos, file, flen)) != NULL) {
- char* p = line;
- if (strncmp(line, "deps_", sizeof("deps_")-1) == 0) {
- check_files = 1;
- continue;
- }
- if (!check_files)
- continue;
-
- /* Continue until line does not end with '\' */
- if ( *(p + strlen(p)-1) != '\\')
- break;
- /* Terminate line at first space, to get rid of final ' \' */
- while (*p) {
- if (isspace(*p)) {
- *p = '\0';
- break;
- }
- p++;
- }
-
- /* Check if this file is in same dir as objfile */
- if ((strstr(line, dir)+strlen(dir)-1) == strrchr(line, '/')) {
- if (!parse_file(line, md)) {
- fprintf(stderr,
- "Warning: could not open %s: %s\n",
- line, strerror(errno));
- goto out_file;
- }
-
- }
-
- }
-
- /* Everyone parsed OK */
- ret = 1;
-out_file:
- release_file(file, flen);
-out:
- free(dir);
- free(cmd);
- return ret;
-}
-
-static int get_version(const char *modname, char sum[])
-{
- void *file;
- unsigned long len;
- int ret = 0;
- struct md4_ctx md;
- char *sources, *end, *fname;
- const char *basename;
- char filelist[sizeof(".tmp_versions/%s.mod") + strlen(modname)];
-
- /* Source files for module are in .tmp_versions/modname.mod,
- after the first line. */
- if (strrchr(modname, '/'))
- basename = strrchr(modname, '/') + 1;
- else
- basename = modname;
- sprintf(filelist, ".tmp_versions/%s", basename);
- /* Truncate .o, add .mod */
- strcpy(filelist + strlen(filelist)-2, ".mod");
-
- file = grab_file(filelist, &len);
- if (!file) {
- fprintf(stderr, "Warning: could not find versions for %s\n",
- filelist);
- return 0;
- }
-
- sources = strchr(file, '\n');
- if (!sources) {
- fprintf(stderr, "Warning: malformed versions file for %s\n",
- modname);
- goto release;
- }
-
- sources++;
- end = strchr(sources, '\n');
- if (!end) {
- fprintf(stderr, "Warning: bad ending versions file for %s\n",
- modname);
- goto release;
- }
- *end = '\0';
-
- md4_init(&md);
- for (fname = strtok(sources, " "); fname; fname = strtok(NULL, " ")) {
- if (!parse_source_files(fname, &md))
- goto release;
- }
-
- /* sum is of form \0<padding>. */
- md4_final_ascii(&md, sum, 1 + strlen(sum+1));
- ret = 1;
-release:
- release_file(file, len);
- return ret;
-}
-
-static void write_version(const char *filename, const char *sum,
- unsigned long offset)
-{
- int fd;
-
- fd = open(filename, O_RDWR);
- if (fd < 0) {
- fprintf(stderr, "Warning: changing sum in %s failed: %s\n",
- filename, strerror(errno));
- return;
- }
-
- if (lseek(fd, offset, SEEK_SET) == (off_t)-1) {
- fprintf(stderr, "Warning: changing sum in %s:%lu failed: %s\n",
- filename, offset, strerror(errno));
- goto out;
- }
-
- if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
- fprintf(stderr, "Warning: writing sum in %s failed: %s\n",
- filename, strerror(errno));
- goto out;
- }
-out:
- close(fd);
-}
-
-void strip_rcs_crap(char *version)
-{
- unsigned int len, full_len;
-
- if (strncmp(version, "$Revision", strlen("$Revision")) != 0)
- return;
-
- /* Space for version string follows. */
- full_len = strlen(version) + strlen(version + strlen(version) + 1) + 2;
-
- /* Move string to start with version number: prefix will be
- * $Revision$ or $Revision: */
- len = strlen("$Revision");
- if (version[len] == ':' || version[len] == '$')
- len++;
- while (isspace(version[len]))
- len++;
- memmove(version, version+len, full_len-len);
- full_len -= len;
-
- /* Preserve up to next whitespace. */
- len = 0;
- while (version[len] && !isspace(version[len]))
- len++;
- memmove(version + len, version + strlen(version),
- full_len - strlen(version));
-}
-
-/* If the modinfo contains a "version" value, then set this. */
-void maybe_frob_version(const char *modfilename,
- void *modinfo,
- unsigned long modinfo_len,
- unsigned long modinfo_offset)
-{
- char *version, *csum;
-
- version = get_modinfo(modinfo, modinfo_len, "version");
- if (!version)
- return;
-
- /* RCS $Revision gets stripped out. */
- strip_rcs_crap(version);
-
- /* Check against double sumversion */
- if (strchr(version, ' '))
- return;
-
- /* Version contains embedded NUL: second half has space for checksum */
- csum = version + strlen(version);
- *(csum++) = ' ';
- if (get_version(modfilename, csum))
- write_version(modfilename, version,
- modinfo_offset + (version - (char *)modinfo));
-}
+++ /dev/null
-# Makefile for the different targets used to generate full packages of a kernel
-# It uses the generic clean infrastructure of kbuild
-
-# Ignore the following files/directories during tar operation
-TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS
-
-
-# RPM target
-# ---------------------------------------------------------------------------
-# The rpm target generates two rpm files:
-# /usr/src/packages/SRPMS/kernel-2.6.7rc2-1.src.rpm
-# /usr/src/packages/RPMS/i386/kernel-2.6.7rc2-1.<arch>.rpm
-# The src.rpm files includes all source for the kernel being built
-# The <arch>.rpm includes kernel configuration, modules etc.
-#
-# Process to create the rpm files
-# a) clean the kernel
-# b) Generate .spec file
-# c) Build a tar ball, using symlink to make kernel version
-# first entry in the path
-# d) and pack the result to a tar.gz file
-# e) generate the rpm files, based on kernel.spec
-# - Use /. to avoid tar packing just the symlink
-
-# Do we have rpmbuild, otherwise fall back to the older rpm
-RPM := $(shell if [ -x "/usr/bin/rpmbuild" ]; then echo rpmbuild; \
- else echo rpm; fi)
-
-# Remove hyphens since they have special meaning in RPM filenames
-KERNELPATH := kernel-$(subst -,,$(KERNELRELEASE))
-MKSPEC := $(srctree)/scripts/package/mkspec
-PREV := set -e; cd ..;
-
-.PHONY: rpm-pkg rpm
-
-$(objtree)/kernel.spec: $(MKSPEC)
- $(CONFIG_SHELL) $(MKSPEC) > $@
-
-rpm-pkg rpm: $(objtree)/kernel.spec
- $(MAKE) clean
- $(PREV) ln -sf $(srctree) $(KERNELPATH)
- $(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/.
- $(PREV) rm $(KERNELPATH)
-
- set -e; \
- $(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
- set -e; \
- mv -f $(objtree)/.tmp_version $(objtree)/.version
-
- $(RPM) --target $(UTS_MACHINE) -ta ../$(KERNELPATH).tar.gz
- rm ../$(KERNELPATH).tar.gz
-
-clean-rule += rm -f $(objtree)/kernel.spec
-
-# Deb target
-# ---------------------------------------------------------------------------
-#
-.PHONY: deb-pkg
-deb-pkg:
- $(MAKE)
- $(CONFIG_SHELL) $(srctree)/scripts/package/builddeb
-
-clean-rule += && rm -rf $(objtree)/debian/
-
-
-# Help text displayed when executing 'make help'
-# ---------------------------------------------------------------------------
-help:
- @echo ' rpm-pkg - Build the kernel as an RPM package'
- @echo ' deb-pkg - Build the kernel as an deb package'
-
+++ /dev/null
-#!/bin/sh
-#
-# builddeb 1.2
-# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
-#
-# Simple script to generate a deb package for a Linux kernel. All the
-# complexity of what to do with a kernel after it is installer or removed
-# is left to other scripts and packages: they can install scripts in the
-# /etc/kernel/{pre,post}{inst,rm}.d/ directories that will be called on
-# package install and removal.
-
-set -e
-
-# Some variables and settings used throughout the script
-version="$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION"
-tmpdir="$objtree/debian/tmp"
-
-# Setup the directory structure
-rm -rf "$tmpdir"
-mkdir -p "$tmpdir/DEBIAN" "$tmpdir/lib" "$tmpdir/boot"
-
-# Build and install the kernel
-cp System.map "$tmpdir/boot/System.map-$version"
-cp .config "$tmpdir/boot/config-$version"
-cp $KBUILD_IMAGE "$tmpdir/boot/vmlinuz-$version"
-
-if grep -q '^CONFIG_MODULES=y' .config ; then
- INSTALL_MOD_PATH="$tmpdir" make modules_install
-fi
-
-# Install the maintainer scripts
-for script in postinst postrm preinst prerm ; do
- mkdir -p "$tmpdir/etc/kernel/$script.d"
- cat <<EOF > "$tmpdir/DEBIAN/$script"
-#!/bin/sh
-
-set -e
-
-test -d /etc/kernel/$script.d && run-parts --arg="$version" /etc/kernel/$script.d
-exit 0
-EOF
- chmod 755 "$tmpdir/DEBIAN/$script"
-done
-
-name="Kernel Compiler <$(id -nu)@$(hostname -f)>"
-# Generate a simple changelog template
-cat <<EOF > debian/changelog
-linux ($version) unstable; urgency=low
-
- * A standard release
-
- -- $name $(date -R)
-EOF
-
-# Generate a control file
-cat <<EOF > debian/control
-Source: linux
-Section: base
-Priority: optional
-Maintainer: $name
-Standards-Version: 3.6.1
-
-Package: linux-$version
-Architecture: any
-Description: Linux kernel, version $version
- This package contains the Linux kernel, modules and corresponding other
- files version $version.
-EOF
-
-# Fix some ownership and permissions
-chown -R root:root "$tmpdir"
-chmod -R go-w "$tmpdir"
-
-# Perform the final magic
-dpkg-gencontrol -isp
-dpkg --build "$tmpdir" ..
-
-exit 0
-
+++ /dev/null
-#!/bin/sh
-#
-# Output a simple RPM spec file that uses no fancy features requring
-# RPM v4. This is intended to work with any RPM distro.
-#
-# The only gothic bit here is redefining install_post to avoid
-# stripping the symbols from files in the kernel which we want
-#
-# Patched for non-x86 by Opencon (L) 2002 <opencon@rio.skydome.net>
-#
-
-# starting to output the spec
-if [ "`grep CONFIG_DRM=y .config | cut -f2 -d\=`" = "y" ]; then
- PROVIDES=kernel-drm
-fi
-
-PROVIDES="$PROVIDES kernel-$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION"
-
-echo "Name: kernel"
-echo "Summary: The Linux Kernel"
-echo "Version: "$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION | sed -e "s/-//g"
-# we need to determine the NEXT version number so that uname and
-# rpm -q will agree
-echo "Release: `. $srctree/scripts/mkversion`"
-echo "License: GPL"
-echo "Group: System Environment/Kernel"
-echo "Vendor: The Linux Community"
-echo "URL: http://www.kernel.org"
-echo -n "Source: kernel-$VERSION.$PATCHLEVEL.$SUBLEVEL"
-echo "$EXTRAVERSION.tar.gz" | sed -e "s/-//g"
-echo "BuildRoot: /var/tmp/%{name}-%{PACKAGE_VERSION}-root"
-echo "Provides: $PROVIDES"
-echo "%define __spec_install_post /usr/lib/rpm/brp-compress || :"
-echo "%define debug_package %{nil}"
-echo ""
-echo "%description"
-echo "The Linux Kernel, the operating system core itself"
-echo ""
-echo "%prep"
-echo "%setup -q"
-echo ""
-echo "%build"
-echo "make clean && make"
-echo ""
-echo "%install"
-echo 'mkdir -p $RPM_BUILD_ROOT/boot $RPM_BUILD_ROOT/lib $RPM_BUILD_ROOT/lib/modules'
-
-echo 'INSTALL_MOD_PATH=$RPM_BUILD_ROOT make modules_install'
-echo 'cp $KBUILD_IMAGE $RPM_BUILD_ROOT'"/boot/vmlinuz-$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION"
-
-echo 'cp System.map $RPM_BUILD_ROOT'"/boot/System.map-$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION"
-
-echo 'cp .config $RPM_BUILD_ROOT'"/boot/config-$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION"
-echo ""
-echo "%clean"
-echo '#echo -rf $RPM_BUILD_ROOT'
-echo ""
-echo "%files"
-echo '%defattr (-, root, root)'
-echo "%dir /lib/modules"
-echo "/lib/modules/$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION"
-echo "/boot/*"
-echo ""
+++ /dev/null
-/*
- * Netlink message type permission tables, for user generated messages.
- *
- * Author: James Morris <jmorris@redhat.com>
- *
- * Copyright (C) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2,
- * as published by the Free Software Foundation.
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/skbuff.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <linux/if.h>
-#include <linux/netfilter_ipv4/ip_queue.h>
-#include <linux/tcp_diag.h>
-#include <linux/xfrm.h>
-#include <linux/audit.h>
-
-#include "flask.h"
-#include "av_permissions.h"
-
-struct nlmsg_perm
-{
- u16 nlmsg_type;
- u32 perm;
-};
-
-static struct nlmsg_perm nlmsg_route_perms[] =
-{
- { RTM_NEWLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_DELLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETLINK, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_SETLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_NEWADDR, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_DELADDR, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETADDR, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_NEWROUTE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_DELROUTE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETROUTE, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_NEWNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_DELNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_NEWRULE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_DELRULE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETRULE, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_NEWQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_DELQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETQDISC, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_NEWTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_DELTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_NEWTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_DELTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_NEWPREFIX, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
- { RTM_GETPREFIX, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_GETMULTICAST, NETLINK_ROUTE_SOCKET__NLMSG_READ },
- { RTM_GETANYCAST, NETLINK_ROUTE_SOCKET__NLMSG_READ },
-};
-
-static struct nlmsg_perm nlmsg_firewall_perms[] =
-{
- { IPQM_MODE, NETLINK_FIREWALL_SOCKET__NLMSG_WRITE },
- { IPQM_VERDICT, NETLINK_FIREWALL_SOCKET__NLMSG_WRITE },
-};
-
-static struct nlmsg_perm nlmsg_tcpdiag_perms[] =
-{
- { TCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ },
-};
-
-static struct nlmsg_perm nlmsg_xfrm_perms[] =
-{
- { XFRM_MSG_NEWSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
- { XFRM_MSG_DELSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
- { XFRM_MSG_GETSA, NETLINK_XFRM_SOCKET__NLMSG_READ },
- { XFRM_MSG_NEWPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
- { XFRM_MSG_DELPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
- { XFRM_MSG_GETPOLICY, NETLINK_XFRM_SOCKET__NLMSG_READ },
- { XFRM_MSG_ALLOCSPI, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
- { XFRM_MSG_UPDPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
- { XFRM_MSG_UPDSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
-};
-
-static struct nlmsg_perm nlmsg_audit_perms[] =
-{
- { AUDIT_GET, NETLINK_AUDIT_SOCKET__NLMSG_READ },
- { AUDIT_SET, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
- { AUDIT_LIST, NETLINK_AUDIT_SOCKET__NLMSG_READ },
- { AUDIT_ADD, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
- { AUDIT_DEL, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
- { AUDIT_USER, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
- { AUDIT_LOGIN, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
-};
-
-
-static int nlmsg_perm(u16 nlmsg_type, u32 *perm, struct nlmsg_perm *tab, size_t tabsize)
-{
- int i, err = -EINVAL;
-
- for (i = 0; i < tabsize/sizeof(struct nlmsg_perm); i++)
- if (nlmsg_type == tab[i].nlmsg_type) {
- *perm = tab[i].perm;
- err = 0;
- break;
- }
-
- return err;
-}
-
-int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm)
-{
- int err = 0;
-
- switch (sclass) {
- case SECCLASS_NETLINK_ROUTE_SOCKET:
- err = nlmsg_perm(nlmsg_type, perm, nlmsg_route_perms,
- sizeof(nlmsg_route_perms));
- break;
-
- case SECCLASS_NETLINK_FIREWALL_SOCKET:
- case NETLINK_IP6_FW:
- err = nlmsg_perm(nlmsg_type, perm, nlmsg_firewall_perms,
- sizeof(nlmsg_firewall_perms));
- break;
-
- case SECCLASS_NETLINK_TCPDIAG_SOCKET:
- err = nlmsg_perm(nlmsg_type, perm, nlmsg_tcpdiag_perms,
- sizeof(nlmsg_tcpdiag_perms));
- break;
-
- case SECCLASS_NETLINK_XFRM_SOCKET:
- err = nlmsg_perm(nlmsg_type, perm, nlmsg_xfrm_perms,
- sizeof(nlmsg_xfrm_perms));
- break;
-
- case SECCLASS_NETLINK_AUDIT_SOCKET:
- err = nlmsg_perm(nlmsg_type, perm, nlmsg_audit_perms,
- sizeof(nlmsg_audit_perms));
- break;
-
- /* No messaging from userspace, or class unknown/unhandled */
- default:
- err = -ENOENT;
- break;
- }
-
- return err;
-}
+++ /dev/null
-/*
- * ALSA driver for ICEnsemble VT1724 (Envy24HT)
- *
- * Lowlevel functions for AudioTrak Prodigy 7.1 (and possibly 192) cards
- * Copyright (c) 2003 Dimitromanolakis Apostolos <apostol@cs.utoronto.ca>
- * based on the aureon.c code (c) 2003 by Takashi Iwai <tiwai@suse.de>
- *
- * version 0.82: Stable / not all features work yet (no communication with AC97 secondary)
- * added 64x/128x oversampling switch (should be 64x only for 96khz)
- * fixed some recording labels (still need to check the rest)
- * recording is working probably thanks to correct wm8770 initialization
- *
- * version 0.5: Initial release:
- * working: analog output, mixer, headphone amplifier switch
- * not working: prety much everything else, at least i could verify that
- * we have no digital output, no capture, pretty bad clicks and poops
- * on mixer switch and other coll stuff.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- *
- * NOTES:
- *
- *
- *
- * - we reuse the akm4xxx_t record for storing the wm8770 codec data.
- * both wm and akm codecs are pretty similar, so we can integrate
- * both controls in the future, once if wm codecs are reused in
- * many boards.
- *
- * - writing over SPI is implemented but reading is not yet.
- * the SPDIF-in channel status, etc. can be read from CS chip.
- *
- * - DAC digital volumes are not implemented in the mixer.
- * if they show better response than DAC analog volumes, we can use them
- * instead.
- *
- * - Prodigy boards are equipped with AC97 STAC9744 chip , too. it's used to do
- * the analog mixing but not easily controllable (it's not connected
- * directly from envy24ht chip). so let's leave it as it is.
- *
- */
-
-#define REVISION 0.82b
-
-#include <sound/driver.h>
-#include <asm/io.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <sound/core.h>
-
-#include "ice1712.h"
-#include "envy24ht.h"
-#include "prodigy.h"
-
-
-static int prodigy_set_headphone_amp(ice1712_t *ice, int enable)
-{
- unsigned int tmp, tmp2;
-
- tmp2 = tmp = snd_ice1712_gpio_read(ice);
- if (enable)
- tmp |= PRODIGY_HP_AMP_EN;
- else
- tmp &= ~ PRODIGY_HP_AMP_EN;
- if (tmp != tmp2) {
- snd_ice1712_gpio_write(ice, tmp);
- return 1;
- }
- return 0;
-}
-
-
-static int prodigy_get_headphone_amp(ice1712_t *ice)
-{
- unsigned int tmp = snd_ice1712_gpio_read(ice);
-
- return ( tmp & PRODIGY_HP_AMP_EN )!= 0;
-}
-
-
-/*
- * write data in the SPI mode
- */
-static void prodigy_spi_write(ice1712_t *ice, unsigned int cs, unsigned int data, int bits)
-{
- unsigned int tmp;
- int i;
-
- tmp = snd_ice1712_gpio_read(ice);
-
- snd_ice1712_gpio_set_mask(ice, ~(PRODIGY_WM_RW|PRODIGY_WM_DATA|PRODIGY_WM_CLK|
- PRODIGY_WM_CS|PRODIGY_CS8415_CS|PRODIGY_HP_AMP_EN));
- tmp |= PRODIGY_WM_RW;
- tmp &= ~cs;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
-
- for (i = bits - 1; i >= 0; i--) {
- tmp &= ~PRODIGY_WM_CLK;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
- if (data & (1 << i))
- tmp |= PRODIGY_WM_DATA;
- else
- tmp &= ~PRODIGY_WM_DATA;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
- tmp |= PRODIGY_WM_CLK;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
- }
-
- tmp &= ~PRODIGY_WM_CLK;
- tmp |= cs;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
- tmp |= PRODIGY_WM_CLK;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
-}
-
-
-/*
- * get the current register value of WM codec
- */
-static unsigned short wm_get(ice1712_t *ice, int reg)
-{
- reg <<= 1;
- return ((unsigned short)ice->akm[0].images[reg] << 8) |
- ice->akm[0].images[reg + 1];
-}
-
-/*
- * set the register value of WM codec and remember it
- */
-static void wm_put(ice1712_t *ice, int reg, unsigned short val)
-{
- prodigy_spi_write(ice, PRODIGY_WM_CS, (reg << 9) | (val & 0x1ff), 16);
- reg <<= 1;
- ice->akm[0].images[reg] = val >> 8;
- ice->akm[0].images[reg + 1] = val;
-}
-
-
-/*********************************
- ********* Controls section ******
- *********************************/
-
-#define PRODIGY_CON_HPAMP \
- { \
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
- .name = "Headphone Amplifier", \
- .info = prodigy_hpamp_info, \
- .get = prodigy_hpamp_get, \
- .put = prodigy_hpamp_put \
- }
-
-static int prodigy_hpamp_info(snd_kcontrol_t *k, snd_ctl_elem_info_t *uinfo)
-{
- static char *texts[2] = {
- "Off", "On"
- };
-
- uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
- uinfo->count = 1;
- uinfo->value.enumerated.items = 2;
-
- if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
- uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
- strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
-
- return 0;
-}
-
-
-static int prodigy_hpamp_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
-
- ucontrol->value.integer.value[0] = prodigy_get_headphone_amp(ice);
- return 0;
-}
-
-
-static int prodigy_hpamp_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
-
- return prodigy_set_headphone_amp(ice,ucontrol->value.integer.value[0]);
-}
-
-
-
-#define PRODIGY_CON_DEEMP \
- { \
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
- .name = "DAC De-emphasis", \
- .info = prodigy_deemp_info, \
- .get = prodigy_deemp_get, \
- .put = prodigy_deemp_put \
- }
-
-static int prodigy_deemp_info(snd_kcontrol_t *k, snd_ctl_elem_info_t *uinfo)
-{
- static char *texts[2] = { "Off", "On" };
-
- uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
- uinfo->count = 1;
- uinfo->value.enumerated.items = 2;
-
- if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
- uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
- strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
-
- return 0;
-}
-
-static int prodigy_deemp_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- ucontrol->value.integer.value[0] = (wm_get(ice, 0x15) & 0xf) == 0xf;
- return 0;
-}
-
-static int prodigy_deemp_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- int temp, temp2;
- temp2 = temp = wm_get(ice, 0x15);
- temp = (temp & ~0xf) | ((ucontrol->value.integer.value[0])*0xf);
- if (temp != temp2) {
- wm_put(ice,0x15,temp);
- return 1;
- }
- return 0;
-}
-
-
-#define PRODIGY_CON_OVERSAMPLING \
- { \
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
- .name = "ADC Oversampling", \
- .info = prodigy_oversampling_info, \
- .get = prodigy_oversampling_get, \
- .put = prodigy_oversampling_put \
- }
-
-static int prodigy_oversampling_info(snd_kcontrol_t *k, snd_ctl_elem_info_t *uinfo)
-{
- static char *texts[2] = { "128x", "64x" };
-
- uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
- uinfo->count = 1;
- uinfo->value.enumerated.items = 2;
-
- if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
- uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
- strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
-
- return 0;
-}
-
-static int prodigy_oversampling_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- ucontrol->value.integer.value[0] = (wm_get(ice, 0x17) & 0x8) == 0x8;
- return 0;
-}
-
-static int prodigy_oversampling_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- int temp, temp2;
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
-
- temp2 = temp = wm_get(ice, 0x17);
-
- if( ucontrol->value.integer.value[0] ) {
- temp |= 0x8;
- } else {
- temp &= ~0x8;
- }
-
- if (temp != temp2) {
- wm_put(ice,0x17,temp);
- return 1;
- }
- return 0;
-}
-
-
-
-
-/*
- * DAC volume attenuation mixer control
- */
-static int wm_dac_vol_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
-{
- uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->count = 1;
- uinfo->value.integer.min = 0; /* mute */
- uinfo->value.integer.max = 101; /* 0dB */
- return 0;
-}
-
-static int wm_dac_vol_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- int idx;
- unsigned short vol;
-
- down(&ice->gpio_mutex);
- if (kcontrol->private_value)
- idx = WM_DAC_MASTER_ATTEN;
- else
- idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + WM_DAC_ATTEN;
- vol = wm_get(ice, idx) & 0x7f;
- if (vol <= 0x1a)
- ucontrol->value.integer.value[0] = 0;
- else
- ucontrol->value.integer.value[0] = vol - 0x1a;
- up(&ice->gpio_mutex);
-
- return 0;
-}
-
-static int wm_dac_vol_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- int idx;
- unsigned short ovol, nvol;
- int change;
-
- snd_ice1712_save_gpio_status(ice);
- if (kcontrol->private_value)
- idx = WM_DAC_MASTER_ATTEN;
- else
- idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + WM_DAC_ATTEN;
- nvol = ucontrol->value.integer.value[0] + 0x1a;
- ovol = wm_get(ice, idx) & 0x7f;
- change = (ovol != nvol);
- if (change) {
- if (nvol <= 0x1a && ovol <= 0x1a)
- change = 0;
- else
- wm_put(ice, idx, nvol | 0x180); /* update on zero detect */
- }
- snd_ice1712_restore_gpio_status(ice);
- return change;
-}
-
-/*
- * ADC gain mixer control
- */
-static int wm_adc_vol_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
-{
- uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->count = 1;
- uinfo->value.integer.min = 0; /* -12dB */
- uinfo->value.integer.max = 0x1f; /* 19dB */
- return 0;
-}
-
-static int wm_adc_vol_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- int idx;
- unsigned short vol;
-
- down(&ice->gpio_mutex);
- idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + WM_ADC_GAIN;
- vol = wm_get(ice, idx) & 0x1f;
- ucontrol->value.integer.value[0] = vol;
- up(&ice->gpio_mutex);
- return 0;
-}
-
-static int wm_adc_vol_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- int idx;
- unsigned short ovol, nvol;
- int change;
-
- snd_ice1712_save_gpio_status(ice);
- idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + WM_ADC_GAIN;
- nvol = ucontrol->value.integer.value[0];
- ovol = wm_get(ice, idx) & 0x1f;
- change = (ovol != nvol);
- if (change)
- wm_put(ice, idx, nvol);
- snd_ice1712_restore_gpio_status(ice);
- return change;
-}
-
-/*
- * ADC input mux mixer control
- */
-static int wm_adc_mux_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
-{
- static char *texts[] = {
- "CD Left",
- "CD Right",
- "Line Left",
- "Line Right",
- "Aux Left",
- "Aux Right",
- "Mic Left",
- "Mic Right",
- };
- uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
- uinfo->count = 2;
- uinfo->value.enumerated.items = 8;
- if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
- uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
- strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
- return 0;
-}
-
-static int wm_adc_mux_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- unsigned short val;
-
- down(&ice->gpio_mutex);
- val = wm_get(ice, WM_ADC_MUX);
- ucontrol->value.integer.value[0] = val & 7;
- ucontrol->value.integer.value[1] = (val >> 4) & 7;
- up(&ice->gpio_mutex);
- return 0;
-}
-
-static int wm_adc_mux_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
-{
- ice1712_t *ice = snd_kcontrol_chip(kcontrol);
- unsigned short oval, nval;
- int change;
-
- snd_ice1712_save_gpio_status(ice);
- oval = wm_get(ice, WM_ADC_MUX);
- nval = oval & ~0x77;
- nval |= ucontrol->value.integer.value[0] & 7;
- nval |= (ucontrol->value.integer.value[1] & 7) << 4;
- change = (oval != nval);
- if (change)
- wm_put(ice, WM_ADC_MUX, nval);
- snd_ice1712_restore_gpio_status(ice);
- return 0;
-}
-
-/*
- * mixers
- */
-
-static snd_kcontrol_new_t prodigy71_dac_control __devinitdata = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "DAC Volume",
- .count = 8,
- .info = wm_dac_vol_info,
- .get = wm_dac_vol_get,
- .put = wm_dac_vol_put,
-};
-
-static snd_kcontrol_new_t wm_controls[] __devinitdata = {
- {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "Master Playback Volume",
- .info = wm_dac_vol_info,
- .get = wm_dac_vol_get,
- .put = wm_dac_vol_put,
- .private_value = 1,
- },
- {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "ADC Volume",
- .count = 2,
- .info = wm_adc_vol_info,
- .get = wm_adc_vol_get,
- .put = wm_adc_vol_put,
- },
- {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "Capture Route",
- .info = wm_adc_mux_info,
- .get = wm_adc_mux_get,
- .put = wm_adc_mux_put,
- },
- PRODIGY_CON_HPAMP ,
- PRODIGY_CON_DEEMP ,
- PRODIGY_CON_OVERSAMPLING
-};
-
-
-static int __devinit prodigy_add_controls(ice1712_t *ice)
-{
- unsigned int i;
- int err;
-
- err = snd_ctl_add(ice->card, snd_ctl_new1(&prodigy71_dac_control, ice));
- if (err < 0)
- return err;
-
- for (i = 0; i < ARRAY_SIZE(wm_controls); i++) {
- err = snd_ctl_add(ice->card, snd_ctl_new1(&wm_controls[i], ice));
- if (err < 0)
- return err;
- }
- return 0;
-}
-
-
-/*
- * initialize the chip
- */
-static int __devinit prodigy_init(ice1712_t *ice)
-{
- static unsigned short wm_inits[] = {
-
- /* These come first to reduce init pop noise */
- 0x1b, 0x000, /* ADC Mux */
- 0x1c, 0x009, /* Out Mux1 */
- 0x1d, 0x009, /* Out Mux2 */
-
- 0x18, 0x000, /* All power-up */
-
- 0x16, 0x022, /* I2S, normal polarity, 24bit, high-pass on */
- 0x17, 0x006, /* 128fs, slave mode */
-
- 0x00, 0, /* DAC1 analog mute */
- 0x01, 0, /* DAC2 analog mute */
- 0x02, 0, /* DAC3 analog mute */
- 0x03, 0, /* DAC4 analog mute */
- 0x04, 0, /* DAC5 analog mute */
- 0x05, 0, /* DAC6 analog mute */
- 0x06, 0, /* DAC7 analog mute */
- 0x07, 0, /* DAC8 analog mute */
- 0x08, 0x100, /* master analog mute */
-
- 0x09, 0x7f, /* DAC1 digital full */
- 0x0a, 0x7f, /* DAC2 digital full */
- 0x0b, 0x7f, /* DAC3 digital full */
- 0x0c, 0x7f, /* DAC4 digital full */
- 0x0d, 0x7f, /* DAC5 digital full */
- 0x0e, 0x7f, /* DAC6 digital full */
- 0x0f, 0x7f, /* DAC7 digital full */
- 0x10, 0x7f, /* DAC8 digital full */
- 0x11, 0x1FF, /* master digital full */
-
- 0x12, 0x000, /* phase normal */
- 0x13, 0x090, /* unmute DAC L/R */
- 0x14, 0x000, /* all unmute */
- 0x15, 0x000, /* no deemphasis, no ZFLG */
-
- 0x19, 0x000, /* -12dB ADC/L */
- 0x1a, 0x000 /* -12dB ADC/R */
-
- };
-
- static unsigned short cs_inits[] = {
- 0x0441, /* RUN */
- 0x0100, /* no mute */
- 0x0200, /* */
- 0x0600, /* slave, 24bit */
- };
-
- unsigned int tmp;
- unsigned int i;
-
- printk(KERN_INFO "ice1724: AudioTrak Prodigy 7.1 driver rev. 0.82b\n");
- printk(KERN_INFO "ice1724: This driver is in beta stage. Forsuccess/failure reporting contact\n");
- printk(KERN_INFO "ice1724: Apostolos Dimitromanolakis <apostol@cs.utoronto.ca>\n");
-
- ice->num_total_dacs = 8;
- ice->num_total_adcs = 8;
-
- /* to remeber the register values */
- ice->akm = snd_kcalloc(sizeof(akm4xxx_t), GFP_KERNEL);
- if (! ice->akm)
- return -ENOMEM;
- ice->akm_codecs = 1;
-
- snd_ice1712_gpio_set_dir(ice, 0xbfffff); /* fix this for the time being */
-
- /* reset the wm codec as the SPI mode */
- snd_ice1712_save_gpio_status(ice);
- snd_ice1712_gpio_set_mask(ice,~( PRODIGY_WM_RESET|PRODIGY_WM_CS|
- PRODIGY_CS8415_CS|PRODIGY_HP_AMP_EN ));
-
- tmp = snd_ice1712_gpio_read(ice);
- tmp &= ~PRODIGY_WM_RESET;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
- tmp |= PRODIGY_WM_CS | PRODIGY_CS8415_CS;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
- tmp |= PRODIGY_WM_RESET;
- snd_ice1712_gpio_write(ice, tmp);
- udelay(1);
-
- /* initialize WM8770 codec */
- for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
- wm_put(ice, wm_inits[i], wm_inits[i+1]);
-
- /* initialize CS8415A codec */
- for (i = 0; i < ARRAY_SIZE(cs_inits); i++)
- prodigy_spi_write(ice, PRODIGY_CS8415_CS,
- cs_inits[i] | 0x200000, 24);
-
-
- prodigy_set_headphone_amp(ice, 1);
-
- snd_ice1712_restore_gpio_status(ice);
-
- return 0;
-}
-
-/*
- * Prodigy boards don't provide the EEPROM data except for the vendor IDs.
- * hence the driver needs to sets up it properly.
- */
-
-static unsigned char prodigy71_eeprom[] __devinitdata = {
- 0x2b, /* SYSCONF: clock 512, mpu401, spdif-in/ADC, 4DACs */
- 0x80, /* ACLINK: I2S */
- 0xf8, /* I2S: vol, 96k, 24bit, 192k */
- 0xc3, /* SPDIF: out-en, out-int, spdif-in */
- 0xff, /* GPIO_DIR */
- 0xff, /* GPIO_DIR1 */
- 0xbf, /* GPIO_DIR2 */
- 0x00, /* GPIO_MASK */
- 0x00, /* GPIO_MASK1 */
- 0x00, /* GPIO_MASK2 */
- 0x00, /* GPIO_STATE */
- 0x00, /* GPIO_STATE1 */
- 0x00, /* GPIO_STATE2 */
-};
-
-/* entry point */
-struct snd_ice1712_card_info snd_vt1724_prodigy_cards[] __devinitdata = {
- {
- .subvendor = VT1724_SUBDEVICE_PRODIGY71,
- .name = "Audiotrak Prodigy 7.1",
- .chip_init = prodigy_init,
- .build_controls = prodigy_add_controls,
- .eeprom_size = sizeof(prodigy71_eeprom),
- .eeprom_data = prodigy71_eeprom,
- },
- { } /* terminator */
-};
+++ /dev/null
-#ifndef __SOUND_PRODIGY_H
-#define __SOUND_PRODIGY_H
-
-/*
- * ALSA driver for VIA VT1724 (Envy24HT)
- *
- * Lowlevel functions for Terratec PRODIGY cards
- *
- * Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#define PRODIGY_DEVICE_DESC "{AudioTrak,Prodigy 7.1},"
-
-#define VT1724_SUBDEVICE_PRODIGY71 0x33495345 /* PRODIGY 7.1 */
-
-extern struct snd_ice1712_card_info snd_vt1724_prodigy_cards[];
-
-/* GPIO bits */
-#define PRODIGY_CS8415_CS (1 << 23)
-#define PRODIGY_CS8415_CDTO (1 << 22)
-#define PRODIGY_WM_RESET (1 << 20)
-#define PRODIGY_WM_CLK (1 << 19)
-#define PRODIGY_WM_DATA (1 << 18)
-#define PRODIGY_WM_RW (1 << 17)
-#define PRODIGY_AC97_RESET (1 << 16)
-#define PRODIGY_DIGITAL_SEL1 (1 << 15)
-// #define PRODIGY_HP_SEL (1 << 14)
-#define PRODIGY_WM_CS (1 << 12)
-
-#define PRODIGY_HP_AMP_EN (1 << 14)
-
-
-/* WM8770 registers */
-#define WM_DAC_ATTEN 0x00 /* DAC1-8 analog attenuation */
-#define WM_DAC_MASTER_ATTEN 0x08 /* DAC master analog attenuation */
-#define WM_DAC_DIG_ATTEN 0x09 /* DAC1-8 digital attenuation */
-#define WM_DAC_DIG_MATER_ATTEN 0x11 /* DAC master digital attenuation */
-#define WM_PHASE_SWAP 0x12 /* DAC phase */
-#define WM_DAC_CTRL1 0x13 /* DAC control bits */
-#define WM_MUTE 0x14 /* mute controls */
-#define WM_DAC_CTRL2 0x15 /* de-emphasis and zefo-flag */
-#define WM_INT_CTRL 0x16 /* interface control */
-#define WM_MASTER 0x17 /* master clock and mode */
-#define WM_POWERDOWN 0x18 /* power-down controls */
-#define WM_ADC_GAIN 0x19 /* ADC gain L(19)/R(1a) */
-#define WM_ADC_MUX 0x1b /* input MUX */
-#define WM_OUT_MUX1 0x1c /* output MUX */
-#define WM_OUT_MUX2 0x1e /* output MUX */
-#define WM_RESET 0x1f /* software reset */
-
-
-#endif /* __SOUND_PRODIGY_H */
git://git.onelab.eu / linux-2.6.git / commitdiff