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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 11:16:36 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 11:16:36 +0200
commitfb9aa6f1d4a1e11e66a680460b2c2b2b10b62f79 (patch)
treee0ad51f39b48a342244cef62099bd1a8a93927db /arch/i386
parent4b60eb8380a0b588a03b6052d7ac93e1964c75b8 (diff)
i386: move pci
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/Makefile2
-rw-r--r--arch/i386/pci/Makefile5
-rw-r--r--arch/i386/pci/Makefile_3214
-rw-r--r--arch/i386/pci/acpi.c90
-rw-r--r--arch/i386/pci/common.c480
-rw-r--r--arch/i386/pci/direct.c302
-rw-r--r--arch/i386/pci/early.c59
-rw-r--r--arch/i386/pci/fixup.c446
-rw-r--r--arch/i386/pci/i386.c315
-rw-r--r--arch/i386/pci/init.c37
-rw-r--r--arch/i386/pci/irq.c1173
-rw-r--r--arch/i386/pci/legacy.c56
-rw-r--r--arch/i386/pci/mmconfig-shared.c315
-rw-r--r--arch/i386/pci/mmconfig_32.c148
-rw-r--r--arch/i386/pci/numa.c135
-rw-r--r--arch/i386/pci/pcbios.c492
-rw-r--r--arch/i386/pci/pci.h149
-rw-r--r--arch/i386/pci/visws.c111
18 files changed, 1 insertions, 4328 deletions
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index da64799484a..87c959d5f35 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -107,7 +107,7 @@ core-y += arch/i386/kernel/ \
$(mcore-y)/ \
arch/x86/crypto/
drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
-drivers-$(CONFIG_PCI) += arch/i386/pci/
+drivers-$(CONFIG_PCI) += arch/x86/pci/
# must be linked after kernel/
drivers-$(CONFIG_OPROFILE) += arch/i386/oprofile/
drivers-$(CONFIG_PM) += arch/x86/power/
diff --git a/arch/i386/pci/Makefile b/arch/i386/pci/Makefile
deleted file mode 100644
index d04d8f976d1..00000000000
--- a/arch/i386/pci/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-ifeq ($(CONFIG_X86_32),y)
-include ${srctree}/arch/i386/pci/Makefile_32
-else
-include ${srctree}/arch/x86_64/pci/Makefile_64
-endif
diff --git a/arch/i386/pci/Makefile_32 b/arch/i386/pci/Makefile_32
deleted file mode 100644
index cdd6828b5ab..00000000000
--- a/arch/i386/pci/Makefile_32
+++ /dev/null
@@ -1,14 +0,0 @@
-obj-y := i386.o init.o
-
-obj-$(CONFIG_PCI_BIOS) += pcbios.o
-obj-$(CONFIG_PCI_MMCONFIG) += mmconfig_32.o direct.o mmconfig-shared.o
-obj-$(CONFIG_PCI_DIRECT) += direct.o
-
-pci-y := fixup.o
-pci-$(CONFIG_ACPI) += acpi.o
-pci-y += legacy.o irq.o
-
-pci-$(CONFIG_X86_VISWS) := visws.o fixup.o
-pci-$(CONFIG_X86_NUMAQ) := numa.o irq.o
-
-obj-y += $(pci-y) common.o early.o
diff --git a/arch/i386/pci/acpi.c b/arch/i386/pci/acpi.c
deleted file mode 100644
index bc8a44bddaa..00000000000
--- a/arch/i386/pci/acpi.c
+++ /dev/null
@@ -1,90 +0,0 @@
-#include <linux/pci.h>
-#include <linux/acpi.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <asm/numa.h>
-#include "pci.h"
-
-struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum)
-{
- struct pci_bus *bus;
- struct pci_sysdata *sd;
- int pxm;
-
- /* Allocate per-root-bus (not per bus) arch-specific data.
- * TODO: leak; this memory is never freed.
- * It's arguable whether it's worth the trouble to care.
- */
- sd = kzalloc(sizeof(*sd), GFP_KERNEL);
- if (!sd) {
- printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum);
- return NULL;
- }
-
- if (domain != 0) {
- printk(KERN_WARNING "PCI: Multiple domains not supported\n");
- kfree(sd);
- return NULL;
- }
-
- sd->node = -1;
-
- pxm = acpi_get_pxm(device->handle);
-#ifdef CONFIG_ACPI_NUMA
- if (pxm >= 0)
- sd->node = pxm_to_node(pxm);
-#endif
-
- bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd);
- if (!bus)
- kfree(sd);
-
-#ifdef CONFIG_ACPI_NUMA
- if (bus != NULL) {
- if (pxm >= 0) {
- printk("bus %d -> pxm %d -> node %d\n",
- busnum, pxm, sd->node);
- }
- }
-#endif
-
- return bus;
-}
-
-extern int pci_routeirq;
-static int __init pci_acpi_init(void)
-{
- struct pci_dev *dev = NULL;
-
- if (pcibios_scanned)
- return 0;
-
- if (acpi_noirq)
- return 0;
-
- printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n");
- acpi_irq_penalty_init();
- pcibios_scanned++;
- pcibios_enable_irq = acpi_pci_irq_enable;
- pcibios_disable_irq = acpi_pci_irq_disable;
-
- if (pci_routeirq) {
- /*
- * PCI IRQ routing is set up by pci_enable_device(), but we
- * also do it here in case there are still broken drivers that
- * don't use pci_enable_device().
- */
- printk(KERN_INFO "PCI: Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n");
- for_each_pci_dev(dev)
- acpi_pci_irq_enable(dev);
- } else
- printk(KERN_INFO "PCI: If a device doesn't work, try \"pci=routeirq\". If it helps, post a report\n");
-
-#ifdef CONFIG_X86_IO_APIC
- if (acpi_ioapic)
- print_IO_APIC();
-#endif
-
- return 0;
-}
-subsys_initcall(pci_acpi_init);
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
deleted file mode 100644
index ebc6f3c6634..00000000000
--- a/arch/i386/pci/common.c
+++ /dev/null
@@ -1,480 +0,0 @@
-/*
- * Low-Level PCI Support for PC
- *
- * (c) 1999--2000 Martin Mares <mj@ucw.cz>
- */
-
-#include <linux/sched.h>
-#include <linux/pci.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/dmi.h>
-
-#include <asm/acpi.h>
-#include <asm/segment.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-
-#include "pci.h"
-
-unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
- PCI_PROBE_MMCONF;
-
-static int pci_bf_sort;
-int pci_routeirq;
-int pcibios_last_bus = -1;
-unsigned long pirq_table_addr;
-struct pci_bus *pci_root_bus;
-struct pci_raw_ops *raw_pci_ops;
-
-static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
-{
- return raw_pci_ops->read(0, bus->number, devfn, where, size, value);
-}
-
-static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
-{
- return raw_pci_ops->write(0, bus->number, devfn, where, size, value);
-}
-
-struct pci_ops pci_root_ops = {
- .read = pci_read,
- .write = pci_write,
-};
-
-/*
- * legacy, numa, and acpi all want to call pcibios_scan_root
- * from their initcalls. This flag prevents that.
- */
-int pcibios_scanned;
-
-/*
- * This interrupt-safe spinlock protects all accesses to PCI
- * configuration space.
- */
-DEFINE_SPINLOCK(pci_config_lock);
-
-/*
- * Several buggy motherboards address only 16 devices and mirror
- * them to next 16 IDs. We try to detect this `feature' on all
- * primary buses (those containing host bridges as they are
- * expected to be unique) and remove the ghost devices.
- */
-
-static void __devinit pcibios_fixup_ghosts(struct pci_bus *b)
-{
- struct list_head *ln, *mn;
- struct pci_dev *d, *e;
- int mirror = PCI_DEVFN(16,0);
- int seen_host_bridge = 0;
- int i;
-
- DBG("PCI: Scanning for ghost devices on bus %d\n", b->number);
- list_for_each(ln, &b->devices) {
- d = pci_dev_b(ln);
- if ((d->class >> 8) == PCI_CLASS_BRIDGE_HOST)
- seen_host_bridge++;
- for (mn=ln->next; mn != &b->devices; mn=mn->next) {
- e = pci_dev_b(mn);
- if (e->devfn != d->devfn + mirror ||
- e->vendor != d->vendor ||
- e->device != d->device ||
- e->class != d->class)
- continue;
- for(i=0; i<PCI_NUM_RESOURCES; i++)
- if (e->resource[i].start != d->resource[i].start ||
- e->resource[i].end != d->resource[i].end ||
- e->resource[i].flags != d->resource[i].flags)
- continue;
- break;
- }
- if (mn == &b->devices)
- return;
- }
- if (!seen_host_bridge)
- return;
- printk(KERN_WARNING "PCI: Ignoring ghost devices on bus %02x\n", b->number);
-
- ln = &b->devices;
- while (ln->next != &b->devices) {
- d = pci_dev_b(ln->next);
- if (d->devfn >= mirror) {
- list_del(&d->global_list);
- list_del(&d->bus_list);
- kfree(d);
- } else
- ln = ln->next;
- }
-}
-
-/*
- * Called after each bus is probed, but before its children
- * are examined.
- */
-
-void __devinit pcibios_fixup_bus(struct pci_bus *b)
-{
- pcibios_fixup_ghosts(b);
- pci_read_bridge_bases(b);
-}
-
-/*
- * Only use DMI information to set this if nothing was passed
- * on the kernel command line (which was parsed earlier).
- */
-
-static int __devinit set_bf_sort(struct dmi_system_id *d)
-{
- if (pci_bf_sort == pci_bf_sort_default) {
- pci_bf_sort = pci_dmi_bf;
- printk(KERN_INFO "PCI: %s detected, enabling pci=bfsort.\n", d->ident);
- }
- return 0;
-}
-
-/*
- * Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus)
- */
-#ifdef __i386__
-static int __devinit assign_all_busses(struct dmi_system_id *d)
-{
- pci_probe |= PCI_ASSIGN_ALL_BUSSES;
- printk(KERN_INFO "%s detected: enabling PCI bus# renumbering"
- " (pci=assign-busses)\n", d->ident);
- return 0;
-}
-#endif
-
-static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
-#ifdef __i386__
-/*
- * Laptops which need pci=assign-busses to see Cardbus cards
- */
- {
- .callback = assign_all_busses,
- .ident = "Samsung X20 Laptop",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Samsung Electronics"),
- DMI_MATCH(DMI_PRODUCT_NAME, "SX20S"),
- },
- },
-#endif /* __i386__ */
- {
- .callback = set_bf_sort,
- .ident = "Dell PowerEdge 1950",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1950"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "Dell PowerEdge 1955",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1955"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "Dell PowerEdge 2900",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2900"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "Dell PowerEdge 2950",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2950"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "Dell PowerEdge R900",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R900"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL20p G3",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL20p G3"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL20p G4",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL20p G4"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL30p G1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL30p G1"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL25p G1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL25p G1"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL35p G1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL35p G1"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL45p G1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL45p G1"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL45p G2",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL45p G2"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL460c G1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL460c G1"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL465c G1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL465c G1"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL480c G1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL480c G1"),
- },
- },
- {
- .callback = set_bf_sort,
- .ident = "HP ProLiant BL685c G1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL685c G1"),
- },
- },
- {}
-};
-
-struct pci_bus * __devinit pcibios_scan_root(int busnum)
-{
- struct pci_bus *bus = NULL;
- struct pci_sysdata *sd;
-
- dmi_check_system(pciprobe_dmi_table);
-
- while ((bus = pci_find_next_bus(bus)) != NULL) {
- if (bus->number == busnum) {
- /* Already scanned */
- return bus;
- }
- }
-
- /* Allocate per-root-bus (not per bus) arch-specific data.
- * TODO: leak; this memory is never freed.
- * It's arguable whether it's worth the trouble to care.
- */
- sd = kzalloc(sizeof(*sd), GFP_KERNEL);
- if (!sd) {
- printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum);
- return NULL;
- }
-
- printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum);
-
- return pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd);
-}
-
-extern u8 pci_cache_line_size;
-
-static int __init pcibios_init(void)
-{
- struct cpuinfo_x86 *c = &boot_cpu_data;
-
- if (!raw_pci_ops) {
- printk(KERN_WARNING "PCI: System does not support PCI\n");
- return 0;
- }
-
- /*
- * Assume PCI cacheline size of 32 bytes for all x86s except K7/K8
- * and P4. It's also good for 386/486s (which actually have 16)
- * as quite a few PCI devices do not support smaller values.
- */
- pci_cache_line_size = 32 >> 2;
- if (c->x86 >= 6 && c->x86_vendor == X86_VENDOR_AMD)
- pci_cache_line_size = 64 >> 2; /* K7 & K8 */
- else if (c->x86 > 6 && c->x86_vendor == X86_VENDOR_INTEL)
- pci_cache_line_size = 128 >> 2; /* P4 */
-
- pcibios_resource_survey();
-
- if (pci_bf_sort >= pci_force_bf)
- pci_sort_breadthfirst();
-#ifdef CONFIG_PCI_BIOS
- if ((pci_probe & PCI_BIOS_SORT) && !(pci_probe & PCI_NO_SORT))
- pcibios_sort();
-#endif
- return 0;
-}
-
-subsys_initcall(pcibios_init);
-
-char * __devinit pcibios_setup(char *str)
-{
- if (!strcmp(str, "off")) {
- pci_probe = 0;
- return NULL;
- } else if (!strcmp(str, "bfsort")) {
- pci_bf_sort = pci_force_bf;
- return NULL;
- } else if (!strcmp(str, "nobfsort")) {
- pci_bf_sort = pci_force_nobf;
- return NULL;
- }
-#ifdef CONFIG_PCI_BIOS
- else if (!strcmp(str, "bios")) {
- pci_probe = PCI_PROBE_BIOS;
- return NULL;
- } else if (!strcmp(str, "nobios")) {
- pci_probe &= ~PCI_PROBE_BIOS;
- return NULL;
- } else if (!strcmp(str, "nosort")) {
- pci_probe |= PCI_NO_SORT;
- return NULL;
- } else if (!strcmp(str, "biosirq")) {
- pci_probe |= PCI_BIOS_IRQ_SCAN;
- return NULL;
- } else if (!strncmp(str, "pirqaddr=", 9)) {
- pirq_table_addr = simple_strtoul(str+9, NULL, 0);
- return NULL;
- }
-#endif
-#ifdef CONFIG_PCI_DIRECT
- else if (!strcmp(str, "conf1")) {
- pci_probe = PCI_PROBE_CONF1 | PCI_NO_CHECKS;
- return NULL;
- }
- else if (!strcmp(str, "conf2")) {
- pci_probe = PCI_PROBE_CONF2 | PCI_NO_CHECKS;
- return NULL;
- }
-#endif
-#ifdef CONFIG_PCI_MMCONFIG
- else if (!strcmp(str, "nommconf")) {
- pci_probe &= ~PCI_PROBE_MMCONF;
- return NULL;
- }
-#endif
- else if (!strcmp(str, "noacpi")) {
- acpi_noirq_set();
- return NULL;
- }
- else if (!strcmp(str, "noearly")) {
- pci_probe |= PCI_PROBE_NOEARLY;
- return NULL;
- }
-#ifndef CONFIG_X86_VISWS
- else if (!strcmp(str, "usepirqmask")) {
- pci_probe |= PCI_USE_PIRQ_MASK;
- return NULL;
- } else if (!strncmp(str, "irqmask=", 8)) {
- pcibios_irq_mask = simple_strtol(str+8, NULL, 0);
- return NULL;
- } else if (!strncmp(str, "lastbus=", 8)) {
- pcibios_last_bus = simple_strtol(str+8, NULL, 0);
- return NULL;
- }
-#endif
- else if (!strcmp(str, "rom")) {
- pci_probe |= PCI_ASSIGN_ROMS;
- return NULL;
- } else if (!strcmp(str, "assign-busses")) {
- pci_probe |= PCI_ASSIGN_ALL_BUSSES;
- return NULL;
- } else if (!strcmp(str, "routeirq")) {
- pci_routeirq = 1;
- return NULL;
- }
- return str;
-}
-
-unsigned int pcibios_assign_all_busses(void)
-{
- return (pci_probe & PCI_ASSIGN_ALL_BUSSES) ? 1 : 0;
-}
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
- int err;
-
- if ((err = pcibios_enable_resources(dev, mask)) < 0)
- return err;
-
- if (!dev->msi_enabled)
- return pcibios_enable_irq(dev);
- return 0;
-}
-
-void pcibios_disable_device (struct pci_dev *dev)
-{
- if (!dev->msi_enabled && pcibios_disable_irq)
- pcibios_disable_irq(dev);
-}
-
-struct pci_bus *pci_scan_bus_with_sysdata(int busno)
-{
- struct pci_bus *bus = NULL;
- struct pci_sysdata *sd;
-
- /*
- * Allocate per-root-bus (not per bus) arch-specific data.
- * TODO: leak; this memory is never freed.
- * It's arguable whether it's worth the trouble to care.
- */
- sd = kzalloc(sizeof(*sd), GFP_KERNEL);
- if (!sd) {
- printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busno);
- return NULL;
- }
- sd->node = -1;
- bus = pci_scan_bus(busno, &pci_root_ops, sd);
- if (!bus)
- kfree(sd);
-
- return bus;
-}
diff --git a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c
deleted file mode 100644
index 431c9a51b15..00000000000
--- a/arch/i386/pci/direct.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * direct.c - Low-level direct PCI config space access
- */
-
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/dmi.h>
-#include "pci.h"
-
-/*
- * Functions for accessing PCI configuration space with type 1 accesses
- */
-
-#define PCI_CONF1_ADDRESS(bus, devfn, reg) \
- (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3))
-
-int pci_conf1_read(unsigned int seg, unsigned int bus,
- unsigned int devfn, int reg, int len, u32 *value)
-{
- unsigned long flags;
-
- if ((bus > 255) || (devfn > 255) || (reg > 255)) {
- *value = -1;
- return -EINVAL;
- }
-
- spin_lock_irqsave(&pci_config_lock, flags);
-
- outl(PCI_CONF1_ADDRESS(bus, devfn, reg), 0xCF8);
-
- switch (len) {
- case 1:
- *value = inb(0xCFC + (reg & 3));
- break;
- case 2:
- *value = inw(0xCFC + (reg & 2));
- break;
- case 4:
- *value = inl(0xCFC);
- break;
- }
-
- spin_unlock_irqrestore(&pci_config_lock, flags);
-
- return 0;
-}
-
-int pci_conf1_write(unsigned int seg, unsigned int bus,
- unsigned int devfn, int reg, int len, u32 value)
-{
- unsigned long flags;
-
- if ((bus > 255) || (devfn > 255) || (reg > 255))
- return -EINVAL;
-
- spin_lock_irqsave(&pci_config_lock, flags);
-
- outl(PCI_CONF1_ADDRESS(bus, devfn, reg), 0xCF8);
-
- switch (len) {
- case 1:
- outb((u8)value, 0xCFC + (reg & 3));
- break;
- case 2:
- outw((u16)value, 0xCFC + (reg & 2));
- break;
- case 4:
- outl((u32)value, 0xCFC);
- break;
- }
-
- spin_unlock_irqrestore(&pci_config_lock, flags);
-
- return 0;
-}
-
-#undef PCI_CONF1_ADDRESS
-
-struct pci_raw_ops pci_direct_conf1 = {
- .read = pci_conf1_read,
- .write = pci_conf1_write,
-};
-
-
-/*
- * Functions for accessing PCI configuration space with type 2 accesses
- */
-
-#define PCI_CONF2_ADDRESS(dev, reg) (u16)(0xC000 | (dev << 8) | reg)
-
-static int pci_conf2_read(unsigned int seg, unsigned int bus,
- unsigned int devfn, int reg, int len, u32 *value)
-{
- unsigned long flags;
- int dev, fn;
-
- if ((bus > 255) || (devfn > 255) || (reg > 255)) {
- *value = -1;
- return -EINVAL;
- }
-
- dev = PCI_SLOT(devfn);
- fn = PCI_FUNC(devfn);
-
- if (dev & 0x10)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- spin_lock_irqsave(&pci_config_lock, flags);
-
- outb((u8)(0xF0 | (fn << 1)), 0xCF8);
- outb((u8)bus, 0xCFA);
-
- switch (len) {
- case 1:
- *value = inb(PCI_CONF2_ADDRESS(dev, reg));
- break;
- case 2:
- *value = inw(PCI_CONF2_ADDRESS(dev, reg));
- break;
- case 4:
- *value = inl(PCI_CONF2_ADDRESS(dev, reg));
- break;
- }
-
- outb(0, 0xCF8);
-
- spin_unlock_irqrestore(&pci_config_lock, flags);
-
- return 0;
-}
-
-static int pci_conf2_write(unsigned int seg, unsigned int bus,
- unsigned int devfn, int reg, int len, u32 value)
-{
- unsigned long flags;
- int dev, fn;
-
- if ((bus > 255) || (devfn > 255) || (reg > 255))
- return -EINVAL;
-
- dev = PCI_SLOT(devfn);
- fn = PCI_FUNC(devfn);
-
- if (dev & 0x10)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- spin_lock_irqsave(&pci_config_lock, flags);
-
- outb((u8)(0xF0 | (fn << 1)), 0xCF8);
- outb((u8)bus, 0xCFA);
-
- switch (len) {
- case 1:
- outb((u8)value, PCI_CONF2_ADDRESS(dev, reg));
- break;
- case 2:
- outw((u16)value, PCI_CONF2_ADDRESS(dev, reg));
- break;
- case 4:
- outl((u32)value, PCI_CONF2_ADDRESS(dev, reg));
- break;
- }
-
- outb(0, 0xCF8);
-
- spin_unlock_irqrestore(&pci_config_lock, flags);
-
- return 0;
-}
-
-#undef PCI_CONF2_ADDRESS
-
-static struct pci_raw_ops pci_direct_conf2 = {
- .read = pci_conf2_read,
- .write = pci_conf2_write,
-};
-
-
-/*
- * Before we decide to use direct hardware access mechanisms, we try to do some
- * trivial checks to ensure it at least _seems_ to be working -- we just test
- * whether bus 00 contains a host bridge (this is similar to checking
- * techniques used in XFree86, but ours should be more reliable since we
- * attempt to make use of direct access hints provided by the PCI BIOS).
- *
- * This should be close to trivial, but it isn't, because there are buggy
- * chipsets (yes, you guessed it, by Intel and Compaq) that have no class ID.
- */
-static int __init pci_sanity_check(struct pci_raw_ops *o)
-{
- u32 x = 0;
- int devfn;
-
- if (pci_probe & PCI_NO_CHECKS)
- return 1;
- /* Assume Type 1 works for newer systems.
- This handles machines that don't have anything on PCI Bus 0. */
- if (dmi_get_year(DMI_BIOS_DATE) >= 2001)
- return 1;
-
- for (devfn = 0; devfn < 0x100; devfn++) {
- if (o->read(0, 0, devfn, PCI_CLASS_DEVICE, 2, &x))
- continue;
- if (x == PCI_CLASS_BRIDGE_HOST || x == PCI_CLASS_DISPLAY_VGA)
- return 1;
-
- if (o->read(0, 0, devfn, PCI_VENDOR_ID, 2, &x))
- continue;
- if (x == PCI_VENDOR_ID_INTEL || x == PCI_VENDOR_ID_COMPAQ)
- return 1;
- }
-
- DBG(KERN_WARNING "PCI: Sanity check failed\n");
- return 0;
-}
-
-static int __init pci_check_type1(void)
-{
- unsigned long flags;
- unsigned int tmp;
- int works = 0;
-
- local_irq_save(flags);
-
- outb(0x01, 0xCFB);
- tmp = inl(0xCF8);
- outl(0x80000000, 0xCF8);
- if (inl(0xCF8) == 0x80000000 && pci_sanity_check(&pci_direct_conf1)) {
- works = 1;
- }
- outl(tmp, 0xCF8);
- local_irq_restore(flags);
-
- return works;
-}
-
-static int __init pci_check_type2(void)
-{
- unsigned long flags;
- int works = 0;
-
- local_irq_save(flags);
-
- outb(0x00, 0xCFB);
- outb(0x00, 0xCF8);
- outb(0x00, 0xCFA);
- if (inb(0xCF8) == 0x00 && inb(0xCFA) == 0x00 &&
- pci_sanity_check(&pci_direct_conf2)) {
- works = 1;
- }
-
- local_irq_restore(flags);
-
- return works;
-}
-
-void __init pci_direct_init(int type)
-{
- if (type == 0)
- return;
- printk(KERN_INFO "PCI: Using configuration type %d\n", type);
- if (type == 1)
- raw_pci_ops = &pci_direct_conf1;
- else
- raw_pci_ops = &pci_direct_conf2;
-}
-
-int __init pci_direct_probe(void)
-{
- struct resource *region, *region2;
-
- if ((pci_probe & PCI_PROBE_CONF1) == 0)
- goto type2;
- region = request_region(0xCF8, 8, "PCI conf1");
- if (!region)
- goto type2;
-
- if (pci_check_type1())
- return 1;
- release_resource(region);
-
- type2:
- if ((pci_probe & PCI_PROBE_CONF2) == 0)
- return 0;
- region = request_region(0xCF8, 4, "PCI conf2");
- if (!region)
- return 0;
- region2 = request_region(0xC000, 0x1000, "PCI conf2");
- if (!region2)
- goto fail2;
-
- if (pci_check_type2()) {
- printk(KERN_INFO "PCI: Using configuration type 2\n");
- raw_pci_ops = &pci_direct_conf2;
- return 2;
- }
-
- release_resource(region2);
- fail2:
- release_resource(region);
- return 0;
-}
diff --git a/arch/i386/pci/early.c b/arch/i386/pci/early.c
deleted file mode 100644
index 42df4b6606d..00000000000
--- a/arch/i386/pci/early.c
+++ /dev/null
@@ -1,59 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <asm/pci-direct.h>
-#include <asm/io.h>
-#include "pci.h"
-
-/* Direct PCI access. This is used for PCI accesses in early boot before
- the PCI subsystem works. */
-
-#define PDprintk(x...)
-
-u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset)
-{
- u32 v;
- outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
- v = inl(0xcfc);
- if (v != 0xffffffff)
- PDprintk("%x reading 4 from %x: %x\n", slot, offset, v);
- return v;
-}
-
-u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset)
-{
- u8 v;
- outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
- v = inb(0xcfc + (offset&3));
- PDprintk("%x reading 1 from %x: %x\n", slot, offset, v);
- return v;
-}
-
-u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset)
-{
- u16 v;
- outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
- v = inw(0xcfc + (offset&2));
- PDprintk("%x reading 2 from %x: %x\n", slot, offset, v);
- return v;
-}
-
-void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset,
- u32 val)
-{
- PDprintk("%x writing to %x: %x\n", slot, offset, val);
- outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
- outl(val, 0xcfc);
-}
-
-void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val)
-{
- PDprintk("%x writing to %x: %x\n", slot, offset, val);
- outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
- outb(val, 0xcfc);
-}
-
-int early_pci_allowed(void)
-{
- return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
- PCI_PROBE_CONF1;
-}
diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c
deleted file mode 100644
index c82cbf4c722..00000000000
--- a/arch/i386/pci/fixup.c
+++ /dev/null
@@ -1,446 +0,0 @@
-/*
- * Exceptions for specific devices. Usually work-arounds for fatal design flaws.
- */
-
-#include <linux/delay.h>
-#include <linux/dmi.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include "pci.h"
-
-
-static void __devinit pci_fixup_i450nx(struct pci_dev *d)
-{
- /*
- * i450NX -- Find and scan all secondary buses on all PXB's.
- */
- int pxb, reg;
- u8 busno, suba, subb;
-
- printk(KERN_WARNING "PCI: Searching for i450NX host bridges on %s\n", pci_name(d));
- reg = 0xd0;
- for(pxb=0; pxb<2; pxb++) {
- pci_read_config_byte(d, reg++, &busno);
- pci_read_config_byte(d, reg++, &suba);
- pci_read_config_byte(d, reg++, &subb);
- DBG("i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno, suba, subb);
- if (busno)
- pci_scan_bus_with_sysdata(busno); /* Bus A */
- if (suba < subb)
- pci_scan_bus_with_sysdata(suba+1); /* Bus B */
- }
- pcibios_last_bus = -1;
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, pci_fixup_i450nx);
-
-static void __devinit pci_fixup_i450gx(struct pci_dev *d)
-{
- /*
- * i450GX and i450KX -- Find and scan all secondary buses.
- * (called separately for each PCI bridge found)
- */
- u8 busno;
- pci_read_config_byte(d, 0x4a, &busno);
- printk(KERN_INFO "PCI: i440KX/GX host bridge %s: secondary bus %02x\n", pci_name(d), busno);
- pci_scan_bus_with_sysdata(busno);
- pcibios_last_bus = -1;
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454GX, pci_fixup_i450gx);
-
-static void __devinit pci_fixup_umc_ide(struct pci_dev *d)
-{
- /*
- * UM8886BF IDE controller sets region type bits incorrectly,
- * therefore they look like memory despite of them being I/O.
- */
- int i;
-
- printk(KERN_WARNING "PCI: Fixing base address flags for device %s\n", pci_name(d));
- for(i=0; i<4; i++)
- d->resource[i].flags |= PCI_BASE_ADDRESS_SPACE_IO;
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, pci_fixup_umc_ide);
-
-static void __devinit pci_fixup_ncr53c810(struct pci_dev *d)
-{
- /*
- * NCR 53C810 returns class code 0 (at least on some systems).
- * Fix class to be PCI_CLASS_STORAGE_SCSI
- */
- if (!d->class) {
- printk(KERN_WARNING "PCI: fixing NCR 53C810 class code for %s\n", pci_name(d));
- d->class = PCI_CLASS_STORAGE_SCSI << 8;
- }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, pci_fixup_ncr53c810);
-
-static void __devinit pci_fixup_latency(struct pci_dev *d)
-{
- /*
- * SiS 5597 and 5598 chipsets require latency timer set to
- * at most 32 to avoid lockups.
- */
- DBG("PCI: Setting max latency to 32\n");
- pcibios_max_latency = 32;
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVIC