* 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/pci.h>
-#include <linux/init.h>
-#include <asm/uaccess.h>
-#ifdef CONFIG_IA64
-#include <asm/iosapic.h>
-#endif
#include "shpchp.h"
-#include "shpchprm.h"
-#include "shpchprm_legacy.h"
-
-static void __iomem *shpchp_rom_start;
-static u16 unused_IRQ;
-
-void shpchprm_cleanup(void)
-{
- if (shpchp_rom_start)
- iounmap(shpchp_rom_start);
-}
-
-int shpchprm_print_pirt(void)
-{
- return 0;
-}
int shpchprm_get_physical_slot_number(struct controller *ctrl, u32 *sun, u8 busnum, u8 devnum)
{
return 0;
}
-/* Find the Hot Plug Resource Table in the specified region of memory */
-static void __iomem *detect_HRT_floating_pointer(void __iomem *begin, void __iomem *end)
+void get_hp_params_from_firmware(struct pci_dev *dev,
+ struct hotplug_params *hpp)
{
- void __iomem *fp;
- void __iomem *endp;
- u8 temp1, temp2, temp3, temp4;
- int status = 0;
-
- endp = (end - sizeof(struct hrt) + 1);
-
- for (fp = begin; fp <= endp; fp += 16) {
- temp1 = readb(fp + SIG0);
- temp2 = readb(fp + SIG1);
- temp3 = readb(fp + SIG2);
- temp4 = readb(fp + SIG3);
- if (temp1 == '$' && temp2 == 'H' && temp3 == 'R' && temp4 == 'T') {
- status = 1;
- break;
- }
- }
-
- if (!status)
- fp = NULL;
-
- dbg("Discovered Hotplug Resource Table at %p\n", fp);
- return fp;
+ return;
}
-/*
- * shpchprm_find_available_resources
- *
- * Finds available memory, IO, and IRQ resources for programming
- * devices which may be added to the system
- * this function is for hot plug ADD!
- *
- * returns 0 if success
- */
-int shpchprm_find_available_resources(struct controller *ctrl)
+void get_hp_hw_control_from_firmware(struct pci_dev *dev)
{
- u8 populated_slot;
- u8 bridged_slot;
- void __iomem *one_slot;
- struct pci_func *func = NULL;
- int i = 10, index = 0;
- u32 temp_dword, rc;
- ulong temp_ulong;
- struct pci_resource *mem_node;
- struct pci_resource *p_mem_node;
- struct pci_resource *io_node;
- struct pci_resource *bus_node;
- void __iomem *rom_resource_table;
- struct pci_bus lpci_bus, *pci_bus;
- u8 cfgspc_irq, temp;
-
- memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
- pci_bus = &lpci_bus;
- rom_resource_table = detect_HRT_floating_pointer(shpchp_rom_start, shpchp_rom_start + 0xffff);
- dbg("rom_resource_table = %p\n", rom_resource_table);
- if (rom_resource_table == NULL)
- return -ENODEV;
-
- /* Sum all resources and setup resource maps */
- unused_IRQ = readl(rom_resource_table + UNUSED_IRQ);
- dbg("unused_IRQ = %x\n", unused_IRQ);
-
- temp = 0;
- while (unused_IRQ) {
- if (unused_IRQ & 1) {
- shpchp_disk_irq = temp;
- break;
- }
- unused_IRQ = unused_IRQ >> 1;
- temp++;
- }
-
- dbg("shpchp_disk_irq= %d\n", shpchp_disk_irq);
- unused_IRQ = unused_IRQ >> 1;
- temp++;
-
- while (unused_IRQ) {
- if (unused_IRQ & 1) {
- shpchp_nic_irq = temp;
- break;
- }
- unused_IRQ = unused_IRQ >> 1;
- temp++;
- }
-
- dbg("shpchp_nic_irq= %d\n", shpchp_nic_irq);
- unused_IRQ = readl(rom_resource_table + PCIIRQ);
-
- temp = 0;
-
- pci_read_config_byte(ctrl->pci_dev, PCI_INTERRUPT_LINE, &cfgspc_irq);
-
- if (!shpchp_nic_irq) {
- shpchp_nic_irq = cfgspc_irq;
- }
-
- if (!shpchp_disk_irq) {
- shpchp_disk_irq = cfgspc_irq;
- }
-
- dbg("shpchp_disk_irq, shpchp_nic_irq= %d, %d\n", shpchp_disk_irq, shpchp_nic_irq);
-
- one_slot = rom_resource_table + sizeof(struct hrt);
-
- i = readb(rom_resource_table + NUMBER_OF_ENTRIES);
- dbg("number_of_entries = %d\n", i);
-
- if (!readb(one_slot + SECONDARY_BUS))
- return (1);
-
- dbg("dev|IO base|length|MEMbase|length|PM base|length|PB SB MB\n");
-
- while (i && readb(one_slot + SECONDARY_BUS)) {
- u8 dev_func = readb(one_slot + DEV_FUNC);
- u8 primary_bus = readb(one_slot + PRIMARY_BUS);
- u8 secondary_bus = readb(one_slot + SECONDARY_BUS);
- u8 max_bus = readb(one_slot + MAX_BUS);
- u16 io_base = readw(one_slot + IO_BASE);
- u16 io_length = readw(one_slot + IO_LENGTH);
- u16 mem_base = readw(one_slot + MEM_BASE);
- u16 mem_length = readw(one_slot + MEM_LENGTH);
- u16 pre_mem_base = readw(one_slot + PRE_MEM_BASE);
- u16 pre_mem_length = readw(one_slot + PRE_MEM_LENGTH);
-
- dbg("%2.2x | %4.4x | %4.4x | %4.4x | %4.4x | %4.4x | %4.4x |%2.2x %2.2x %2.2x\n",
- dev_func, io_base, io_length, mem_base, mem_length, pre_mem_base, pre_mem_length,
- primary_bus, secondary_bus, max_bus);
-
- /* If this entry isn't for our controller's bus, ignore it */
- if (primary_bus != ctrl->slot_bus) {
- i--;
- one_slot += sizeof(struct slot_rt);
- continue;
- }
- /* find out if this entry is for an occupied slot */
- temp_dword = 0xFFFFFFFF;
- pci_bus->number = primary_bus;
- pci_bus_read_config_dword(pci_bus, dev_func, PCI_VENDOR_ID, &temp_dword);
-
- dbg("temp_D_word = %x\n", temp_dword);
-
- if (temp_dword != 0xFFFFFFFF) {
- index = 0;
- func = shpchp_slot_find(primary_bus, dev_func >> 3, 0);
-
- while (func && (func->function != (dev_func & 0x07))) {
- dbg("func = %p b:d:f(%x:%x:%x)\n", func, primary_bus, dev_func >> 3, index);
- func = shpchp_slot_find(primary_bus, dev_func >> 3, index++);
- }
-
- /* If we can't find a match, skip this table entry */
- if (!func) {
- i--;
- one_slot += sizeof(struct slot_rt);
- continue;
- }
- /* this may not work and shouldn't be used */
- if (secondary_bus != primary_bus)
- bridged_slot = 1;
- else
- bridged_slot = 0;
-
- populated_slot = 1;
- } else {
- populated_slot = 0;
- bridged_slot = 0;
- }
- dbg("slot populated =%s \n", populated_slot?"yes":"no");
-
- /* If we've got a valid IO base, use it */
-
- temp_ulong = io_base + io_length;
-
- if ((io_base) && (temp_ulong <= 0x10000)) {
- io_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
- if (!io_node)
- return -ENOMEM;
-
- io_node->base = (ulong)io_base;
- io_node->length = (ulong)io_length;
- dbg("found io_node(base, length) = %x, %x\n", io_node->base, io_node->length);
-
- if (!populated_slot) {
- io_node->next = ctrl->io_head;
- ctrl->io_head = io_node;
- } else {
- io_node->next = func->io_head;
- func->io_head = io_node;
- }
- }
-
- /* If we've got a valid memory base, use it */
- temp_ulong = mem_base + mem_length;
- if ((mem_base) && (temp_ulong <= 0x10000)) {
- mem_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
- if (!mem_node)
- return -ENOMEM;
-
- mem_node->base = (ulong)mem_base << 16;
- mem_node->length = (ulong)(mem_length << 16);
- dbg("found mem_node(base, length) = %x, %x\n", mem_node->base, mem_node->length);
-
- if (!populated_slot) {
- mem_node->next = ctrl->mem_head;
- ctrl->mem_head = mem_node;
- } else {
- mem_node->next = func->mem_head;
- func->mem_head = mem_node;
- }
- }
-
- /*
- * If we've got a valid prefetchable memory base, and
- * the base + length isn't greater than 0xFFFF
- */
- temp_ulong = pre_mem_base + pre_mem_length;
- if ((pre_mem_base) && (temp_ulong <= 0x10000)) {
- p_mem_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
- if (!p_mem_node)
- return -ENOMEM;
-
- p_mem_node->base = (ulong)pre_mem_base << 16;
- p_mem_node->length = (ulong)pre_mem_length << 16;
- dbg("found p_mem_node(base, length) = %x, %x\n", p_mem_node->base, p_mem_node->length);
-
- if (!populated_slot) {
- p_mem_node->next = ctrl->p_mem_head;
- ctrl->p_mem_head = p_mem_node;
- } else {
- p_mem_node->next = func->p_mem_head;
- func->p_mem_head = p_mem_node;
- }
- }
-
- /*
- * If we've got a valid bus number, use it
- * The second condition is to ignore bus numbers on
- * populated slots that don't have PCI-PCI bridges
- */
- if (secondary_bus && (secondary_bus != primary_bus)) {
- bus_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
- if (!bus_node)
- return -ENOMEM;
-
- bus_node->base = (ulong)secondary_bus;
- bus_node->length = (ulong)(max_bus - secondary_bus + 1);
- dbg("found bus_node(base, length) = %x, %x\n", bus_node->base, bus_node->length);
-
- if (!populated_slot) {
- bus_node->next = ctrl->bus_head;
- ctrl->bus_head = bus_node;
- } else {
- bus_node->next = func->bus_head;
- func->bus_head = bus_node;
- }
- }
-
- i--;
- one_slot += sizeof(struct slot_rt);
- }
-
- /* If all of the following fail, we don't have any resources for hot plug add */
- rc = 1;
- rc &= shpchp_resource_sort_and_combine(&(ctrl->mem_head));
- rc &= shpchp_resource_sort_and_combine(&(ctrl->p_mem_head));
- rc &= shpchp_resource_sort_and_combine(&(ctrl->io_head));
- rc &= shpchp_resource_sort_and_combine(&(ctrl->bus_head));
-
- return (rc);
+ return;
}
-int shpchprm_set_hpp(
- struct controller *ctrl,
- struct pci_func *func,
- u8 card_type)
-{
- u32 rc;
- u8 temp_byte;
- struct pci_bus lpci_bus, *pci_bus;
- unsigned int devfn;
- memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
- pci_bus = &lpci_bus;
- pci_bus->number = func->bus;
- devfn = PCI_DEVFN(func->device, func->function);
-
- temp_byte = 0x40; /* hard coded value for LT */
- if (card_type == PCI_HEADER_TYPE_BRIDGE) {
- /* set subordinate Latency Timer */
- rc = pci_bus_write_config_byte(pci_bus, devfn, PCI_SEC_LATENCY_TIMER, temp_byte);
- if (rc) {
- dbg("%s: set secondary LT error. b:d:f(%02x:%02x:%02x)\n", __FUNCTION__, func->bus,
- func->device, func->function);
- return rc;
- }
- }
-
- /* set base Latency Timer */
- rc = pci_bus_write_config_byte(pci_bus, devfn, PCI_LATENCY_TIMER, temp_byte);
- if (rc) {
- dbg("%s: set LT error. b:d:f(%02x:%02x:%02x)\n", __FUNCTION__, func->bus, func->device, func->function);
- return rc;
- }
-
- /* set Cache Line size */
- temp_byte = 0x08; /* hard coded value for CLS */
- rc = pci_bus_write_config_byte(pci_bus, devfn, PCI_CACHE_LINE_SIZE, temp_byte);
- if (rc) {
- dbg("%s: set CLS error. b:d:f(%02x:%02x:%02x)\n", __FUNCTION__, func->bus, func->device, func->function);
- }
-
- /* set enable_perr */
- /* set enable_serr */
-
- return rc;
-}
-
-void shpchprm_enable_card(
- struct controller *ctrl,
- struct pci_func *func,
- u8 card_type)
-{
- u16 command, bcommand;
- struct pci_bus lpci_bus, *pci_bus;
- unsigned int devfn;
- int rc;
-
- memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
- pci_bus = &lpci_bus;
- pci_bus->number = func->bus;
- devfn = PCI_DEVFN(func->device, func->function);
-
- rc = pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &command);
- command |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR
- | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE
- | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
- rc = pci_bus_write_config_word(pci_bus, devfn, PCI_COMMAND, command);
-
- if (card_type == PCI_HEADER_TYPE_BRIDGE) {
- rc = pci_bus_read_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, &bcommand);
- bcommand |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR
- | PCI_BRIDGE_CTL_NO_ISA;
- rc = pci_bus_write_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, bcommand);
- }
-}
-
-static int legacy_shpchprm_init_pci(void)
-{
- shpchp_rom_start = ioremap(ROM_PHY_ADDR, ROM_PHY_LEN);
- if (!shpchp_rom_start) {
- err("Could not ioremap memory region for ROM\n");
- return -EIO;
- }
-
- return 0;
-}
-
-int shpchprm_init(enum php_ctlr_type ctrl_type)
-{
- int retval;
-
- switch (ctrl_type) {
- case PCI:
- retval = legacy_shpchprm_init_pci();
- break;
- default:
- retval = -ENODEV;
- break;
- }
-
- return retval;
-}
git://git.onelab.eu / linux-2.6.git / blobdiff