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-rw-r--r--arch/x86/pci/acpi.c11
-rw-r--r--arch/x86/pci/common.c63
-rw-r--r--arch/x86/pci/i386.c111
-rw-r--r--arch/x86/pci/irq.c12
-rw-r--r--arch/x86/pci/numa.c32
-rw-r--r--arch/x86/pci/pcbios.c72
-rw-r--r--arch/x86/pci/pci.h4
7 files changed, 108 insertions, 197 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 378136fb5044..2664cb3fc96c 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -151,7 +151,7 @@ adjust_transparent_bridge_resources(struct pci_bus *bus)
static void
get_current_resources(struct acpi_device *device, int busnum,
- struct pci_bus *bus)
+ int domain, struct pci_bus *bus)
{
struct pci_root_info info;
size_t size;
@@ -168,10 +168,10 @@ get_current_resources(struct acpi_device *device, int busnum,
if (!info.res)
goto res_alloc_fail;
- info.name = kmalloc(12, GFP_KERNEL);
+ info.name = kmalloc(16, GFP_KERNEL);
if (!info.name)
goto name_alloc_fail;
- sprintf(info.name, "PCI Bus #%02x", busnum);
+ sprintf(info.name, "PCI Bus %04x:%02x", domain, busnum);
info.res_num = 0;
acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
@@ -247,7 +247,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
#endif
if (bus && (pci_probe & PCI_USE__CRS))
- get_current_resources(device, busnum, bus);
+ get_current_resources(device, busnum, domain, bus);
return bus;
}
@@ -278,8 +278,7 @@ static int __init pci_acpi_init(void)
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)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 7b6e3bb9b28c..75fcc29ecf52 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -77,59 +77,6 @@ int pcibios_scanned;
*/
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;
- }
-}
-
static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
{
struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE];
@@ -152,7 +99,6 @@ void __devinit pcibios_fixup_bus(struct pci_bus *b)
{
struct pci_dev *dev;
- pcibios_fixup_ghosts(b);
pci_read_bridge_bases(b);
list_for_each_entry(dev, &b->devices, bus_list)
pcibios_fixup_device_resources(dev);
@@ -427,10 +373,6 @@ static int __init pcibios_init(void)
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;
}
@@ -455,9 +397,6 @@ char * __devinit pcibios_setup(char *str)
} 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;
@@ -527,7 +466,7 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
{
int err;
- if ((err = pcibios_enable_resources(dev, mask)) < 0)
+ if ((err = pci_enable_resources(dev, mask)) < 0)
return err;
if (!dev->msi_enabled)
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 103b9dff1213..94f6c73a53d0 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -30,6 +30,9 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/errno.h>
+#include <linux/bootmem.h>
+
+#include <asm/pat.h>
#include "pci.h"
@@ -238,44 +241,6 @@ void __init pcibios_resource_survey(void)
*/
fs_initcall(pcibios_assign_resources);
-int pcibios_enable_resources(struct pci_dev *dev, int mask)
-{
- u16 cmd, old_cmd;
- int idx;
- struct resource *r;
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
- for (idx = 0; idx < PCI_NUM_RESOURCES; idx++) {
- /* Only set up the requested stuff */
- if (!(mask & (1 << idx)))
- continue;
-
- r = &dev->resource[idx];
- if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM)))
- continue;
- if ((idx == PCI_ROM_RESOURCE) &&
- (!(r->flags & IORESOURCE_ROM_ENABLE)))
- continue;
- if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available "
- "because of resource %d collisions\n",
- pci_name(dev), idx);
- return -EINVAL;
- }
- if (r->flags & IORESOURCE_IO)
- cmd |= PCI_COMMAND_IO;
- if (r->flags & IORESOURCE_MEM)
- cmd |= PCI_COMMAND_MEMORY;
- }
- if (cmd != old_cmd) {
- printk("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 the latency
* timer as certain crappy BIOSes forget to set it properly.
@@ -297,10 +262,35 @@ void pcibios_set_master(struct pci_dev *dev)
pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
}
+static void pci_unmap_page_range(struct vm_area_struct *vma)
+{
+ u64 addr = (u64)vma->vm_pgoff << PAGE_SHIFT;
+ free_memtype(addr, addr + vma->vm_end - vma->vm_start);
+}
+
+static void pci_track_mmap_page_range(struct vm_area_struct *vma)
+{
+ u64 addr = (u64)vma->vm_pgoff << PAGE_SHIFT;
+ unsigned long flags = pgprot_val(vma->vm_page_prot)
+ & _PAGE_CACHE_MASK;
+
+ reserve_memtype(addr, addr + vma->vm_end - vma->vm_start, flags, NULL);
+}
+
+static struct vm_operations_struct pci_mmap_ops = {
+ .open = pci_track_mmap_page_range,
+ .close = pci_unmap_page_range,
+};
+
int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine)
{
unsigned long prot;
+ u64 addr = vma->vm_pgoff << PAGE_SHIFT;
+ unsigned long len = vma->vm_end - vma->vm_start;
+ unsigned long flags;
+ unsigned long new_flags;
+ int retval;
/* I/O space cannot be accessed via normal processor loads and
* stores on this platform.
@@ -308,21 +298,50 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
if (mmap_state == pci_mmap_io)
return -EINVAL;
- /* Leave vm_pgoff as-is, the PCI space address is the physical
- * address on this platform.
- */
prot = pgprot_val(vma->vm_page_prot);
- if (boot_cpu_data.x86 > 3)
- prot |= _PAGE_PCD | _PAGE_PWT;
+ if (pat_wc_enabled && write_combine)
+ prot |= _PAGE_CACHE_WC;
+ else if (boot_cpu_data.x86 > 3)
+ prot |= _PAGE_CACHE_UC;
+
vma->vm_page_prot = __pgprot(prot);
- /* Write-combine setting is ignored, it is changed via the mtrr
- * interfaces on this platform.
- */
+ flags = pgprot_val(vma->vm_page_prot) & _PAGE_CACHE_MASK;
+ retval = reserve_memtype(addr, addr + len, flags, &new_flags);
+ if (retval)
+ return retval;
+
+ if (flags != new_flags) {
+ /*
+ * Do not fallback to certain memory types with certain
+ * requested type:
+ * - request is uncached, return cannot be write-back
+ * - request is uncached, return cannot be write-combine
+ * - request is write-combine, return cannot be write-back
+ */
+ if ((flags == _PAGE_CACHE_UC &&
+ (new_flags == _PAGE_CACHE_WB ||
+ new_flags == _PAGE_CACHE_WC)) ||
+ (flags == _PAGE_CACHE_WC &&
+ new_flags == _PAGE_CACHE_WB)) {
+ free_memtype(addr, addr+len);
+ return -EINVAL;
+ }
+ flags = new_flags;
+ }
+
+ if (vma->vm_pgoff <= max_pfn_mapped &&
+ ioremap_change_attr((unsigned long)__va(addr), len, flags)) {
+ free_memtype(addr, addr + len);
+ return -EINVAL;
+ }
+
if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
+ vma->vm_ops = &pci_mmap_ops;
+
return 0;
}
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index a8715861877e..579745ca6b66 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -200,7 +200,7 @@ static int pirq_ali_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
{
static const unsigned char irqmap[16] = { 0, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15 };
- WARN_ON_ONCE(pirq >= 16);
+ WARN_ON_ONCE(pirq > 16);
return irqmap[read_config_nybble(router, 0x48, pirq-1)];
}
@@ -209,7 +209,7 @@ static int pirq_ali_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
static const unsigned char irqmap[16] = { 0, 8, 0, 2, 4, 5, 7, 6, 0, 1, 3, 9, 11, 0, 13, 15 };
unsigned int val = irqmap[irq];
- WARN_ON_ONCE(pirq >= 16);
+ WARN_ON_ONCE(pirq > 16);
if (val) {
write_config_nybble(router, 0x48, pirq-1, val);
return 1;
@@ -260,7 +260,7 @@ static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq
{
static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
- WARN_ON_ONCE(pirq >= 5);
+ WARN_ON_ONCE(pirq > 5);
return read_config_nybble(router, 0x55, pirqmap[pirq-1]);
}
@@ -268,7 +268,7 @@ static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq
{
static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
- WARN_ON_ONCE(pirq >= 5);
+ WARN_ON_ONCE(pirq > 5);
write_config_nybble(router, 0x55, pirqmap[pirq-1], irq);
return 1;
}
@@ -282,7 +282,7 @@ static int pirq_ite_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
{
static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
- WARN_ON_ONCE(pirq >= 4);
+ WARN_ON_ONCE(pirq > 4);
return read_config_nybble(router,0x43, pirqmap[pirq-1]);
}
@@ -290,7 +290,7 @@ static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
{
static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
- WARN_ON_ONCE(pirq >= 4);
+ WARN_ON_ONCE(pirq > 4);
write_config_nybble(router, 0x43, pirqmap[pirq-1], irq);
return 1;
}
diff --git a/arch/x86/pci/numa.c b/arch/x86/pci/numa.c
index 55270c26237c..d9afbae5092b 100644
--- a/arch/x86/pci/numa.c
+++ b/arch/x86/pci/numa.c
@@ -11,11 +11,41 @@
#define XQUAD_PORTIO_BASE 0xfe400000
#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */
+int mp_bus_id_to_node[MAX_MP_BUSSES];
#define BUS2QUAD(global) (mp_bus_id_to_node[global])
+
+int mp_bus_id_to_local[MAX_MP_BUSSES];
#define BUS2LOCAL(global) (mp_bus_id_to_local[global])
+
+void mpc_oem_bus_info(struct mpc_config_bus *m, char *name,
+ struct mpc_config_translation *translation)
+{
+ int quad = translation->trans_quad;
+ int local = translation->trans_local;
+
+ mp_bus_id_to_node[m->mpc_busid] = quad;
+ mp_bus_id_to_local[m->mpc_busid] = local;
+ printk(KERN_INFO "Bus #%d is %s (node %d)\n",
+ m->mpc_busid, name, quad);
+}
+
+int quad_local_to_mp_bus_id [NR_CPUS/4][4];
#define QUADLOCAL2BUS(quad,local) (quad_local_to_mp_bus_id[quad][local])
+void mpc_oem_pci_bus(struct mpc_config_bus *m,
+ struct mpc_config_translation *translation)
+{
+ int quad = translation->trans_quad;
+ int local = translation->trans_local;
+
+ quad_local_to_mp_bus_id[quad][local] = m->mpc_busid;
+}
+
+/* Where the IO area was mapped on multiquad, always 0 otherwise */
+void *xquad_portio;
+#ifdef CONFIG_X86_NUMAQ
+EXPORT_SYMBOL(xquad_portio);
+#endif
-extern void *xquad_portio; /* Where the IO area was mapped */
#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port)
#define PCI_CONF1_MQ_ADDRESS(bus, devfn, reg) \
diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
index 2f7109ac4c15..37472fc6f729 100644
--- a/arch/x86/pci/pcbios.c
+++ b/arch/x86/pci/pcbios.c
@@ -152,28 +152,6 @@ static int __devinit check_pcibios(void)
return 0;
}
-static int __devinit pci_bios_find_device (unsigned short vendor, unsigned short device_id,
- unsigned short index, unsigned char *bus, unsigned char *device_fn)
-{
- unsigned short bx;
- unsigned short ret;
-
- __asm__("lcall *(%%edi); cld\n\t"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
- : "=b" (bx),
- "=a" (ret)
- : "1" (PCIBIOS_FIND_PCI_DEVICE),
- "c" (device_id),
- "d" (vendor),
- "S" ((int) index),
- "D" (&pci_indirect));
- *bus = (bx >> 8) & 0xff;
- *device_fn = bx & 0xff;
- return (int) (ret & 0xff00) >> 8;
-}
-
static int pci_bios_read(unsigned int seg, unsigned int bus,
unsigned int devfn, int reg, int len, u32 *value)
{
@@ -364,55 +342,6 @@ static struct pci_raw_ops * __devinit pci_find_bios(void)
}
/*
- * Sort the device list according to PCI BIOS. Nasty hack, but since some
- * fool forgot to define the `correct' device order in the PCI BIOS specs
- * and we want to be (possibly bug-to-bug ;-]) compatible with older kernels
- * which used BIOS ordering, we are bound to do this...
- */
-
-void __devinit pcibios_sort(void)
-{
- LIST_HEAD(sorted_devices);
- struct list_head *ln;
- struct pci_dev *dev, *d;
- int idx, found;
- unsigned char bus, devfn;
-
- DBG("PCI: Sorting device list...\n");
- while (!list_empty(&pci_devices)) {
- ln = pci_devices.next;
- dev = pci_dev_g(ln);
- idx = found = 0;
- while (pci_bios_find_device(dev->vendor, dev->device, idx, &bus, &devfn) == PCIBIOS_SUCCESSFUL) {
- idx++;
- list_for_each(ln, &pci_devices) {
- d = pci_dev_g(ln);
- if (d->bus->number == bus && d->devfn == devfn) {
- list_move_tail(&d->global_list, &sorted_devices);
- if (d == dev)
- found = 1;
- break;
- }
- }
- if (ln == &pci_devices) {
- printk(KERN_WARNING "PCI: BIOS reporting unknown device %02x:%02x\n", bus, devfn);
- /*
- * We must not continue scanning as several buggy BIOSes
- * return garbage after the last device. Grr.
- */
- break;
- }
- }
- if (!found) {
- printk(KERN_WARNING "PCI: Device %s not found by BIOS\n",
- pci_name(dev));
- list_move_tail(&dev->global_list, &sorted_devices);
- }
- }
- list_splice(&sorted_devices, &pci_devices);
-}
-
-/*
* BIOS Functions for IRQ Routing
*/
@@ -495,7 +424,6 @@ void __init pci_pcbios_init(void)
{
if ((pci_probe & PCI_PROBE_BIOS)
&& ((raw_pci_ops = pci_find_bios()))) {
- pci_probe |= PCI_BIOS_SORT;
pci_bios_present = 1;
}
}
diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h
index 3431518d921a..c4bddaeff619 100644
--- a/arch/x86/pci/pci.h
+++ b/arch/x86/pci/pci.h
@@ -19,8 +19,6 @@
#define PCI_PROBE_MASK 0x000f
#define PCI_PROBE_NOEARLY 0x0010
-#define PCI_NO_SORT 0x0100
-#define PCI_BIOS_SORT 0x0200
#define PCI_NO_CHECKS 0x0400
#define PCI_USE_PIRQ_MASK 0x0800
#define PCI_ASSIGN_ROMS 0x1000
@@ -44,7 +42,6 @@ enum pci_bf_sort_state {
extern unsigned int pcibios_max_latency;
void pcibios_resource_survey(void);
-int pcibios_enable_resources(struct pci_dev *, int);
/* pci-pc.c */
@@ -101,7 +98,6 @@ extern int pci_direct_probe(void);
extern void pci_direct_init(int type);
extern void pci_pcbios_init(void);
extern void pci_mmcfg_init(int type);
-extern void pcibios_sort(void);
/* pci-mmconfig.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 09:59:53 +0100