* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
- * Send feedback to <greg@kroah.com>, <dely.l.sy@intel.com>
+ * Send feedback to <greg@kroah.com>, <kristen.c.accardi@intel.com>
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-#include <linux/proc_fs.h>
#include <linux/pci.h>
#include "../pci.h"
#include "shpchp.h"
-#ifndef CONFIG_IA64
-#include "../../../arch/i386/pci/pci.h" /* horrible hack showing how processor dependant we are... */
-#endif
-int shpchp_configure_device (struct controller* ctrl, struct pci_func* func)
+static void program_fw_provided_values(struct pci_dev *dev)
{
- unsigned char bus;
- struct pci_bus *child;
- int num;
-
- if (func->pci_dev == NULL)
- func->pci_dev = pci_find_slot(func->bus, PCI_DEVFN(func->device, func->function));
-
- /* Still NULL ? Well then scan for it ! */
- if (func->pci_dev == NULL) {
- num = pci_scan_slot(ctrl->pci_dev->subordinate, PCI_DEVFN(func->device, func->function));
- if (num) {
- dbg("%s: subordiante %p number %x\n", __FUNCTION__, ctrl->pci_dev->subordinate,
- ctrl->pci_dev->subordinate->number);
- pci_bus_add_devices(ctrl->pci_dev->subordinate);
- }
-
- func->pci_dev = pci_find_slot(func->bus, PCI_DEVFN(func->device, func->function));
- if (func->pci_dev == NULL) {
- dbg("ERROR: pci_dev still null\n");
- return 0;
- }
- }
-
- if (func->pci_dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
- pci_read_config_byte(func->pci_dev, PCI_SECONDARY_BUS, &bus);
- child = pci_add_new_bus(func->pci_dev->bus, (func->pci_dev), bus);
- pci_do_scan_bus(child);
-
+ u16 pci_cmd, pci_bctl;
+ struct pci_dev *cdev;
+ struct hotplug_params hpp;
+
+ /* Program hpp values for this device */
+ if (!(dev->hdr_type == PCI_HEADER_TYPE_NORMAL ||
+ (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
+ (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)))
+ return;
+
+ /* use default values if we can't get them from firmware */
+ if (get_hp_params_from_firmware(dev, &hpp)) {
+ hpp.cache_line_size = 8;
+ hpp.latency_timer = 0x40;
+ hpp.enable_serr = 0;
+ hpp.enable_perr = 0;
}
- return 0;
-}
-
-
-int shpchp_unconfigure_device(struct pci_func* func)
-{
- int rc = 0;
- int j;
-
- dbg("%s: bus/dev/func = %x/%x/%x\n", __FUNCTION__, func->bus,
- func->device, func->function);
-
- for (j=0; j<8 ; j++) {
- struct pci_dev* temp = pci_find_slot(func->bus,
- (func->device << 3) | j);
- if (temp) {
- pci_remove_bus_device(temp);
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, hpp.cache_line_size);
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, hpp.latency_timer);
+ pci_read_config_word(dev, PCI_COMMAND, &pci_cmd);
+ if (hpp.enable_serr)
+ pci_cmd |= PCI_COMMAND_SERR;
+ else
+ pci_cmd &= ~PCI_COMMAND_SERR;
+ if (hpp.enable_perr)
+ pci_cmd |= PCI_COMMAND_PARITY;
+ else
+ pci_cmd &= ~PCI_COMMAND_PARITY;
+ pci_write_config_word(dev, PCI_COMMAND, pci_cmd);
+
+ /* Program bridge control value and child devices */
+ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
+ pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER,
+ hpp.latency_timer);
+ pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &pci_bctl);
+ if (hpp.enable_serr)
+ pci_bctl |= PCI_BRIDGE_CTL_SERR;
+ else
+ pci_bctl &= ~PCI_BRIDGE_CTL_SERR;
+ if (hpp.enable_perr)
+ pci_bctl |= PCI_BRIDGE_CTL_PARITY;
+ else
+ pci_bctl &= ~PCI_BRIDGE_CTL_PARITY;
+ pci_write_config_word(dev, PCI_BRIDGE_CONTROL, pci_bctl);
+ if (dev->subordinate) {
+ list_for_each_entry(cdev, &dev->subordinate->devices,
+ bus_list)
+ program_fw_provided_values(cdev);
}
}
- return rc;
-}
-
-/*
- * shpchp_set_irq
- *
- * @bus_num: bus number of PCI device
- * @dev_num: device number of PCI device
- * @slot: pointer to u8 where slot number will be returned
- */
-int shpchp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num)
-{
-#if defined(CONFIG_X86) && !defined(CONFIG_X86_IO_APIC) && !defined(CONFIG_X86_64)
- int rc;
- u16 temp_word;
- struct pci_dev fakedev;
- struct pci_bus fakebus;
-
- fakedev.devfn = dev_num << 3;
- fakedev.bus = &fakebus;
- fakebus.number = bus_num;
- dbg("%s: dev %d, bus %d, pin %d, num %d\n",
- __FUNCTION__, dev_num, bus_num, int_pin, irq_num);
- rc = pcibios_set_irq_routing(&fakedev, int_pin - 0x0a, irq_num);
- dbg("%s: rc %d\n", __FUNCTION__, rc);
- if (!rc)
- return !rc;
-
- /* set the Edge Level Control Register (ELCR) */
- temp_word = inb(0x4d0);
- temp_word |= inb(0x4d1) << 8;
-
- temp_word |= 0x01 << irq_num;
-
- /* This should only be for x86 as it sets the Edge Level Control Register */
- outb((u8) (temp_word & 0xFF), 0x4d0);
- outb((u8) ((temp_word & 0xFF00) >> 8), 0x4d1);
-#endif
- return 0;
}
-/* More PCI configuration routines; this time centered around hotplug controller */
-
-
-/*
- * shpchp_save_config
- *
- * Reads configuration for all slots in a PCI bus and saves info.
- *
- * Note: For non-hot plug busses, the slot # saved is the device #
- *
- * returns 0 if success
- */
-int shpchp_save_config(struct controller *ctrl, int busnumber, int num_ctlr_slots, int first_device_num)
+int shpchp_configure_device(struct slot *p_slot)
{
- int rc;
- u8 class_code;
- u8 header_type;
- u32 ID;
- u8 secondary_bus;
- struct pci_func *new_slot;
- int sub_bus;
- int FirstSupported;
- int LastSupported;
- int max_functions;
- int function;
- u8 DevError;
- int device = 0;
- int cloop = 0;
- int stop_it;
- int index;
- int is_hot_plug = num_ctlr_slots || first_device_num;
- struct pci_bus lpci_bus, *pci_bus;
-
- dbg("%s: num_ctlr_slots = %d, first_device_num = %d\n", __FUNCTION__,
- num_ctlr_slots, first_device_num);
-
- memcpy(&lpci_bus, ctrl->pci_dev->subordinate, sizeof(lpci_bus));
- pci_bus = &lpci_bus;
-
- dbg("%s: num_ctlr_slots = %d, first_device_num = %d\n", __FUNCTION__,
- num_ctlr_slots, first_device_num);
-
- /* Decide which slots are supported */
- if (is_hot_plug) {
- /*********************************
- * is_hot_plug is the slot mask
- *********************************/
- FirstSupported = first_device_num;
- LastSupported = FirstSupported + num_ctlr_slots - 1;
- } else {
- FirstSupported = 0;
- LastSupported = 0x1F;
+ struct pci_dev *dev;
+ struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
+ int num, fn;
+
+ dev = pci_get_slot(parent, PCI_DEVFN(p_slot->device, 0));
+ if (dev) {
+ err("Device %s already exists at %x:%x, cannot hot-add\n",
+ pci_name(dev), p_slot->bus, p_slot->device);
+ pci_dev_put(dev);
+ return -EINVAL;
}
- dbg("FirstSupported = %d, LastSupported = %d\n", FirstSupported,
- LastSupported);
-
- /* Save PCI configuration space for all devices in supported slots */
- pci_bus->number = busnumber;
- for (device = FirstSupported; device <= LastSupported; device++) {
- ID = 0xFFFFFFFF;
- rc = pci_bus_read_config_dword(pci_bus, PCI_DEVFN(device, 0),
- PCI_VENDOR_ID, &ID);
-
- if (ID != 0xFFFFFFFF) { /* device in slot */
- rc = pci_bus_read_config_byte(pci_bus, PCI_DEVFN(device, 0),
- 0x0B, &class_code);
- if (rc)
- return rc;
-
- rc = pci_bus_read_config_byte(pci_bus, PCI_DEVFN(device, 0),
- PCI_HEADER_TYPE, &header_type);
- if (rc)
- return rc;
-
- dbg("class_code = %x, header_type = %x\n", class_code, header_type);
-
- /* If multi-function device, set max_functions to 8 */
- if (header_type & 0x80)
- max_functions = 8;
- else
- max_functions = 1;
-
- function = 0;
-
- do {
- DevError = 0;
-
- if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { /* P-P Bridge */
- /* Recurse the subordinate bus
- * get the subordinate bus number
- */
- rc = pci_bus_read_config_byte(pci_bus,
- PCI_DEVFN(device, function),
- PCI_SECONDARY_BUS, &secondary_bus);
- if (rc) {
- return rc;
- } else {
- sub_bus = (int) secondary_bus;
-
- /* Save secondary bus cfg spc with this recursive call. */
- rc = shpchp_save_config(ctrl, sub_bus, 0, 0);
- if (rc)
- return rc;
- }
- }
-
- index = 0;
- new_slot = shpchp_slot_find(busnumber, device, index++);
-
- dbg("new_slot = %p\n", new_slot);
-
- while (new_slot && (new_slot->function != (u8) function)) {
- new_slot = shpchp_slot_find(busnumber, device, index++);
- dbg("new_slot = %p\n", new_slot);
- }
- if (!new_slot) {
- /* Setup slot structure. */
- new_slot = shpchp_slot_create(busnumber);
- dbg("new_slot = %p\n", new_slot);
-
- if (new_slot == NULL)
- return(1);
- }
-
- new_slot->bus = (u8) busnumber;
- new_slot->device = (u8) device;
- new_slot->function = (u8) function;
- new_slot->is_a_board = 1;
- new_slot->switch_save = 0x10;
- new_slot->pwr_save = 1;
- /* In case of unsupported board */
- new_slot->status = DevError;
- new_slot->pci_dev = pci_find_slot(new_slot->bus,
- (new_slot->device << 3) | new_slot->function);
- dbg("new_slot->pci_dev = %p\n", new_slot->pci_dev);
-
- for (cloop = 0; cloop < 0x20; cloop++) {
- rc = pci_bus_read_config_dword(pci_bus,
- PCI_DEVFN(device, function),
- cloop << 2,
- (u32 *) &(new_slot->config_space [cloop]));
- /* dbg("new_slot->config_space[%x] = %x\n",
- cloop, new_slot->config_space[cloop]); */
- if (rc)
- return rc;
- }
-
- function++;
-
- stop_it = 0;
-
- /* this loop skips to the next present function
- * reading in Class Code and Header type.
- */
-
- while ((function < max_functions)&&(!stop_it)) {
- rc = pci_bus_read_config_dword(pci_bus,
- PCI_DEVFN(device, function),
- PCI_VENDOR_ID, &ID);
-
- if (ID == 0xFFFFFFFF) { /* nothing there. */
- function++;
- dbg("Nothing there\n");
- } else { /* Something there */
- rc = pci_bus_read_config_byte(pci_bus,
- PCI_DEVFN(device, function),
- 0x0B, &class_code);
- if (rc)
- return rc;
-
- rc = pci_bus_read_config_byte(pci_bus,
- PCI_DEVFN(device, function),
- PCI_HEADER_TYPE, &header_type);
- if (rc)
- return rc;
-
- dbg("class_code = %x, header_type = %x\n",
- class_code, header_type);
- stop_it++;
- }
- }
-
- } while (function < max_functions);
- /* End of IF (device in slot?) */
- } else if (is_hot_plug) {
- /* Setup slot structure with entry for empty slot */
- new_slot = shpchp_slot_create(busnumber);
-
- if (new_slot == NULL) {
- return(1);
- }
- dbg("new_slot = %p\n", new_slot);
+ num = pci_scan_slot(parent, PCI_DEVFN(p_slot->device, 0));
+ if (num == 0) {
+ err("No new device found\n");
+ return -ENODEV;
+ }
- new_slot->bus = (u8) busnumber;
- new_slot->device = (u8) device;
- new_slot->function = 0;
- new_slot->is_a_board = 0;
- new_slot->presence_save = 0;
- new_slot->switch_save = 0;
+ for (fn = 0; fn < 8; fn++) {
+ dev = pci_get_slot(parent, PCI_DEVFN(p_slot->device, fn));
+ if (!dev)
+ continue;
+ if ((dev->class >> 16) == PCI_BASE_CLASS_DISPLAY) {
+ err("Cannot hot-add display device %s\n",
+ pci_name(dev));
+ pci_dev_put(dev);
+ continue;
}
- } /* End of FOR loop */
-
- return(0);
-}
-
-
-/*
- * shpchp_save_slot_config
- *
- * Saves configuration info for all PCI devices in a given slot
- * including subordinate busses.
- *
- * returns 0 if success
- */
-int shpchp_save_slot_config(struct controller *ctrl, struct pci_func * new_slot)
-{
- int rc;
- u8 class_code;
- u8 header_type;
- u32 ID;
- u8 secondary_bus;
- int sub_bus;
- int max_functions;
- int function;
- int cloop = 0;
- int stop_it;
- struct pci_bus lpci_bus, *pci_bus;
- memcpy(&lpci_bus, ctrl->pci_dev->subordinate, sizeof(lpci_bus));
- pci_bus = &lpci_bus;
- pci_bus->number = new_slot->bus;
-
- ID = 0xFFFFFFFF;
-
- pci_bus_read_config_dword(pci_bus, PCI_DEVFN(new_slot->device, 0),
- PCI_VENDOR_ID, &ID);
-
- if (ID != 0xFFFFFFFF) { /* device in slot */
- pci_bus_read_config_byte(pci_bus, PCI_DEVFN(new_slot->device, 0),
- 0x0B, &class_code);
-
- pci_bus_read_config_byte(pci_bus, PCI_DEVFN(new_slot->device, 0),
- PCI_HEADER_TYPE, &header_type);
-
- if (header_type & 0x80) /* Multi-function device */
- max_functions = 8;
- else
- max_functions = 1;
-
- function = 0;
-
- do {
- if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { /* PCI-PCI Bridge */
- /* Recurse the subordinate bus */
- pci_bus_read_config_byte(pci_bus,
- PCI_DEVFN(new_slot->device, function),
- PCI_SECONDARY_BUS, &secondary_bus);
-
- sub_bus = (int) secondary_bus;
-
- /* Save the config headers for the secondary bus. */
- rc = shpchp_save_config(ctrl, sub_bus, 0, 0);
-
- if (rc)
- return rc;
-
- } /* End of IF */
-
- new_slot->status = 0;
-
- for (cloop = 0; cloop < 0x20; cloop++) {
- pci_bus_read_config_dword(pci_bus,
- PCI_DEVFN(new_slot->device, function),
- cloop << 2,
- (u32 *) &(new_slot->config_space [cloop]));
+ if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) ||
+ (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) {
+ /* Find an unused bus number for the new bridge */
+ struct pci_bus *child;
+ unsigned char busnr, start = parent->secondary;
+ unsigned char end = parent->subordinate;
+ for (busnr = start; busnr <= end; busnr++) {
+ if (!pci_find_bus(pci_domain_nr(parent),
+ busnr))
+ break;
}
-
- function++;
-
- stop_it = 0;
-
- /* this loop skips to the next present function
- * reading in the Class Code and the Header type.
- */
-
- while ((function < max_functions) && (!stop_it)) {
- pci_bus_read_config_dword(pci_bus,
- PCI_DEVFN(new_slot->device, function),
- PCI_VENDOR_ID, &ID);
-
- if (ID == 0xFFFFFFFF) { /* nothing there. */
- function++;
- } else { /* Something there */
- pci_bus_read_config_byte(pci_bus,
- PCI_DEVFN(new_slot->device, function),
- 0x0B, &class_code);
-
- pci_bus_read_config_byte(pci_bus,
- PCI_DEVFN(new_slot->device, function),
- PCI_HEADER_TYPE, &header_type);
-
- stop_it++;
- }
+ if (busnr >= end) {
+ err("No free bus for hot-added bridge\n");
+ pci_dev_put(dev);
+ continue;
}
-
- } while (function < max_functions);
- } /* End of IF (device in slot?) */
- else {
- return 2;
+ child = pci_add_new_bus(parent, dev, busnr);
+ if (!child) {
+ err("Cannot add new bus for %s\n",
+ pci_name(dev));
+ pci_dev_put(dev);
+ continue;
+ }
+ child->subordinate = pci_do_scan_bus(child);
+ pci_bus_size_bridges(child);
+ }
+ program_fw_provided_values(dev);
+ pci_dev_put(dev);
}
+ pci_bus_assign_resources(parent);
+ pci_bus_add_devices(parent);
+ pci_enable_bridges(parent);
return 0;
}
-
-/*
- * shpchp_save_used_resources
- *
- * Stores used resource information for existing boards. this is
- * for boards that were in the system when this driver was loaded.
- * this function is for hot plug ADD
- *
- * returns 0 if success
- * if disable == 1(DISABLE_CARD),
- * it loops for all functions of the slot and disables them.
- * else, it just get resources of the function and return.
- */
-int shpchp_save_used_resources(struct controller *ctrl, struct pci_func *func, int disable)
+int shpchp_unconfigure_device(struct slot *p_slot)
{
- u8 cloop;
- u8 header_type;
- u8 secondary_bus;
- u8 temp_byte;
- u16 command;
- u16 save_command;
- u16 w_base, w_length;
- u32 temp_register;
- u32 save_base;
- u32 base, length;
- u64 base64 = 0;
- int index = 0;
- unsigned int devfn;
- struct pci_resource *mem_node = NULL;
- struct pci_resource *p_mem_node = NULL;
- struct pci_resource *t_mem_node;
- struct pci_resource *io_node;
- struct pci_resource *bus_node;
- struct pci_bus lpci_bus, *pci_bus;
- memcpy(&lpci_bus, ctrl->pci_dev->subordinate, sizeof(lpci_bus));
- pci_bus = &lpci_bus;
-
- if (disable)
- func = shpchp_slot_find(func->bus, func->device, index++);
-
- while ((func != NULL) && func->is_a_board) {
- pci_bus->number = func->bus;
- devfn = PCI_DEVFN(func->device, func->function);
+ int rc = 0;
+ int j;
+ u8 bctl = 0;
+ struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
- /* Save the command register */
- pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &save_command);
+ dbg("%s: bus/dev = %x/%x\n", __FUNCTION__, p_slot->bus, p_slot->device);
- if (disable) {
- /* disable card */
- command = 0x00;
- pci_bus_write_config_word(pci_bus, devfn, PCI_COMMAND, command);
+ for (j=0; j<8 ; j++) {
+ struct pci_dev* temp = pci_get_slot(parent,
+ (p_slot->device << 3) | j);
+ if (!temp)
+ continue;
+ if ((temp->class >> 16) == PCI_BASE_CLASS_DISPLAY) {
+ err("Cannot remove display device %s\n",
+ pci_name(temp));
+ pci_dev_put(temp);
+ continue;
}
-
- /* Check for Bridge */
- pci_bus_read_config_byte(pci_bus, devfn, PCI_HEADER_TYPE, &header_type);
-
- if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { /* PCI-PCI Bridge */
- dbg("Save_used_res of PCI bridge b:d=0x%x:%x, sc=0x%x\n",
- func->bus, func->device, save_command);
- if (disable) {
- /* Clear Bridge Control Register */
- command = 0x00;
- pci_bus_write_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, command);
- }
-
- pci_bus_read_config_byte(pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus);
- pci_bus_read_config_byte(pci_bus, devfn, PCI_SUBORDINATE_BUS, &temp_byte);
-
- bus_node = kmalloc(sizeof(struct pci_resource),
- GFP_KERNEL);
- if (!bus_node)
- return -ENOMEM;
-
- bus_node->base = (ulong)secondary_bus;
- bus_node->length = (ulong)(temp_byte - secondary_bus + 1);
-
- bus_node->next = func->bus_head;
- func->bus_head = bus_node;
-
- /* Save IO base and Limit registers */
- pci_bus_read_config_byte(pci_bus, devfn, PCI_IO_BASE, &temp_byte);
- base = temp_byte;
- pci_bus_read_config_byte(pci_bus, devfn, PCI_IO_LIMIT, &temp_byte);
- length = temp_byte;
-
- if ((base <= length) && (!disable || (save_command & PCI_COMMAND_IO))) {
- io_node = kmalloc(sizeof(struct pci_resource),
- GFP_KERNEL);
- if (!io_node)
- return -ENOMEM;
-
- io_node->base = (ulong)(base & PCI_IO_RANGE_MASK) << 8;
- io_node->length = (ulong)(length - base + 0x10) << 8;
-
- io_node->next = func->io_head;
- func->io_head = io_node;
+ if (temp->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+ pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, &bctl);
+ if (bctl & PCI_BRIDGE_CTL_VGA) {
+ err("Cannot remove display device %s\n",
+ pci_name(temp));
+ pci_dev_put(temp);
+ continue;
}
-
- /* Save memory base and Limit registers */
- pci_bus_read_config_word(pci_bus, devfn, PCI_MEMORY_BASE, &w_base);
- pci_bus_read_config_word(pci_bus, devfn, PCI_MEMORY_LIMIT, &w_length);
-
- if ((w_base <= w_length) && (!disable || (save_command & PCI_COMMAND_MEMORY))) {
- mem_node = kmalloc(sizeof(struct pci_resource),
- GFP_KERNEL);
- if (!mem_node)
- return -ENOMEM;
-
- mem_node->base = (ulong)w_base << 16;
- mem_node->length = (ulong)(w_length - w_base + 0x10) << 16;
-
- mem_node->next = func->mem_head;
- func->mem_head = mem_node;
- }
- /* Save prefetchable memory base and Limit registers */
- pci_bus_read_config_word(pci_bus, devfn, PCI_PREF_MEMORY_BASE, &w_base);
- pci_bus_read_config_word(pci_bus, devfn, PCI_PREF_MEMORY_LIMIT, &w_length);
-
- if ((w_base <= w_length) && (!disable || (save_command & PCI_COMMAND_MEMORY))) {
- p_mem_node = kmalloc(sizeof(struct pci_resource),
- GFP_KERNEL);
- if (!p_mem_node)
- return -ENOMEM;
-
- p_mem_node->base = (ulong)w_base << 16;
- p_mem_node->length = (ulong)(w_length - w_base + 0x10) << 16;
-
- p_mem_node->next = func->p_mem_head;
- func->p_mem_head = p_mem_node;
- }
- } else if ((header_type & 0x7F) == PCI_HEADER_TYPE_NORMAL) {
- dbg("Save_used_res of PCI adapter b:d=0x%x:%x, sc=0x%x\n",
- func->bus, func->device, save_command);
-
- /* Figure out IO and memory base lengths */
- for (cloop = PCI_BASE_ADDRESS_0; cloop <= PCI_BASE_ADDRESS_5; cloop += 4) {
- pci_bus_read_config_dword(pci_bus, devfn, cloop, &save_base);
-
- temp_register = 0xFFFFFFFF;
- pci_bus_write_config_dword(pci_bus, devfn, cloop, temp_register);
- pci_bus_read_config_dword(pci_bus, devfn, cloop, &temp_register);
-
- if (!disable)
- pci_bus_write_config_dword(pci_bus, devfn, cloop, save_base);
-
- if (!temp_register)
- continue;
-
- base = temp_register;
-
- if ((base & PCI_BASE_ADDRESS_SPACE_IO) &&
- (!disable || (save_command & PCI_COMMAND_IO))) {
- /* IO base */
- /* set temp_register = amount of IO space requested */
- base = base & 0xFFFFFFFCL;
- base = (~base) + 1;
-
- io_node = kmalloc(sizeof (struct pci_resource),
- GFP_KERNEL);
- if (!io_node)
- return -ENOMEM;
-
- io_node->base = (ulong)save_base & PCI_BASE_ADDRESS_IO_MASK;
- io_node->length = (ulong)base;
- dbg("sur adapter: IO bar=0x%x(length=0x%x)\n",
- io_node->base, io_node->length);
-
- io_node->next = func->io_head;
- func->io_head = io_node;
- } else { /* map Memory */
- int prefetchable = 1;
- /* struct pci_resources **res_node; */
- char *res_type_str = "PMEM";
- u32 temp_register2;
-
- t_mem_node = kmalloc(sizeof (struct pci_resource),
- GFP_KERNEL);
- if (!t_mem_node)
- return -ENOMEM;
-
- if (!(base & PCI_BASE_ADDRESS_MEM_PREFETCH) &&
- (!disable || (save_command & PCI_COMMAND_MEMORY))) {
- prefetchable = 0;
- mem_node = t_mem_node;
- res_type_str++;
- } else
- p_mem_node = t_mem_node;
-
- base = base & 0xFFFFFFF0L;
- base = (~base) + 1;
-
- switch (temp_register & PCI_BASE_ADDRESS_MEM_TYPE_MASK) {
- case PCI_BASE_ADDRESS_MEM_TYPE_32:
- if (prefetchable) {
- p_mem_node->base = (ulong)save_base & PCI_BASE_ADDRESS_MEM_MASK;
- p_mem_node->length = (ulong)base;
- dbg("sur adapter: 32 %s bar=0x%x(length=0x%x)\n",
- res_type_str,
- p_mem_node->base,
- p_mem_node->length);
-
- p_mem_node->next = func->p_mem_head;
- func->p_mem_head = p_mem_node;
- } else {
- mem_node->base = (ulong)save_base & PCI_BASE_ADDRESS_MEM_MASK;
- mem_node->length = (ulong)base;
- dbg("sur adapter: 32 %s bar=0x%x(length=0x%x)\n",
- res_type_str,
- mem_node->base,
- mem_node->length);
-
- mem_node->next = func->mem_head;
- func->mem_head = mem_node;
- }
- break;
- case PCI_BASE_ADDRESS_MEM_TYPE_64:
- pci_bus_read_config_dword(pci_bus, devfn, cloop+4, &temp_register2);
- base64 = temp_register2;
- base64 = (base64 << 32) | save_base;
-
- if (temp_register2) {
- dbg("sur adapter: 64 %s high dword of base64(0x%x:%x) masked to 0\n",
- res_type_str, temp_register2, (u32)base64);
- base64 &= 0x00000000FFFFFFFFL;
- }
-
- if (prefetchable) {
- p_mem_node->base = base64 & PCI_BASE_ADDRESS_MEM_MASK;
- p_mem_node->length = base;
- dbg("sur adapter: 64 %s base=0x%x(len=0x%x)\n",
- res_type_str,
- p_mem_node->base,
- p_mem_node->length);
-
- p_mem_node->next = func->p_mem_head;
- func->p_mem_head = p_mem_node;
- } else {
- mem_node->base = base64 & PCI_BASE_ADDRESS_MEM_MASK;
- mem_node->length = base;
- dbg("sur adapter: 64 %s base=0x%x(len=0x%x)\n",
- res_type_str,
- mem_node->base,
- mem_node->length);
-
- mem_node->next = func->mem_head;
- func->mem_head = mem_node;
- }
- cloop += 4;
- break;
- default:
- dbg("asur: reserved BAR type=0x%x\n",
- temp_register);
- break;
- }
- }
- } /* End of base register loop */
- } else { /* Some other unknown header type */
- dbg("Save_used_res of PCI unknown type b:d=0x%x:%x. skip.\n",
- func->bus, func->device);
}
-
- /* find the next device in this slot */
- if (!disable)
- break;
- func = shpchp_slot_find(func->bus, func->device, index++);
+ pci_remove_bus_device(temp);
+ pci_dev_put(temp);
}
-
- return 0;
-}
-
-/**
- * kfree_resource_list: release memory of all list members
- * @res: resource list to free
- */
-static inline void
-return_resource_list(struct pci_resource **func, struct pci_resource **res)
-{
- struct pci_resource *node;
- struct pci_resource *t_node;
-
- node = *func;
- *func = NULL;
- while (node) {
- t_node = node->next;
- return_resource(res, node);
- node = t_node;
- }
-}
-
-/*
- * shpchp_return_board_resources
- *
- * this routine returns all resources allocated to a board to
- * the available pool.
- *
- * returns 0 if success
- */
-int shpchp_return_board_resources(struct pci_func * func,
- struct resource_lists * resources)
-{
- int rc;
- dbg("%s\n", __FUNCTION__);
-
- if (!func)
- return 1;
-
- return_resource_list(&(func->io_head),&(resources->io_head));
- return_resource_list(&(func->mem_head),&(resources->mem_head));
- return_resource_list(&(func->p_mem_head),&(resources->p_mem_head));
- return_resource_list(&(func->bus_head),&(resources->bus_head));
-
- rc = shpchp_resource_sort_and_combine(&(resources->mem_head));
- rc |= shpchp_resource_sort_and_combine(&(resources->p_mem_head));
- rc |= shpchp_resource_sort_and_combine(&(resources->io_head));
- rc |= shpchp_resource_sort_and_combine(&(resources->bus_head));
-
return rc;
}
-/**
- * kfree_resource_list: release memory of all list members
- * @res: resource list to free
- */
-static inline void
-kfree_resource_list(struct pci_resource **r)
-{
- struct pci_resource *res, *tres;
-
- res = *r;
- *r = NULL;
-
- while (res) {
- tres = res;
- res = res->next;
- kfree(tres);
- }
-}
-
-/**
- * shpchp_destroy_resource_list: put node back in the resource list
- * @resources: list to put nodes back
- */
-void shpchp_destroy_resource_list(struct resource_lists *resources)
-{
- kfree_resource_list(&(resources->io_head));
- kfree_resource_list(&(resources->mem_head));
- kfree_resource_list(&(resources->p_mem_head));
- kfree_resource_list(&(resources->bus_head));
-}
-
-/**
- * shpchp_destroy_board_resources: put node back in the resource list
- * @resources: list to put nodes back
- */
-void shpchp_destroy_board_resources(struct pci_func * func)
-{
- kfree_resource_list(&(func->io_head));
- kfree_resource_list(&(func->mem_head));
- kfree_resource_list(&(func->p_mem_head));
- kfree_resource_list(&(func->bus_head));
-}
git://git.onelab.eu / linux-2.6.git / blobdiff