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-rw-r--r--arch/alpha/kernel/pci.c6
-rw-r--r--arch/arm/kernel/bios32.c8
-rw-r--r--arch/cris/arch-v32/drivers/pci/bios.c16
-rw-r--r--arch/frv/mb93090-mb00/pci-frv.c16
-rw-r--r--arch/ia64/include/asm/acpi.h1
-rw-r--r--arch/ia64/pci/pci.c22
-rw-r--r--arch/mips/pci/pci.c6
-rw-r--r--arch/mips/pmc-sierra/yosemite/ht.c10
-rw-r--r--arch/mn10300/unit-asb2305/pci-asb2305.c16
-rw-r--r--arch/mn10300/unit-asb2305/pci.c6
-rw-r--r--arch/parisc/kernel/pci.c10
-rw-r--r--arch/powerpc/kernel/pci-common.c24
-rw-r--r--arch/powerpc/platforms/fsl_uli1575.c12
-rw-r--r--arch/sh/drivers/pci/pci.c6
-rw-r--r--arch/sparc/kernel/pci.c5
-rw-r--r--arch/sparc/kernel/pcic.c5
-rw-r--r--arch/x86/include/asm/pci_x86.h1
-rw-r--r--arch/x86/pci/acpi.c82
-rw-r--r--arch/x86/pci/bus_numa.c3
-rw-r--r--arch/x86/pci/bus_numa.h3
-rw-r--r--arch/x86/pci/common.c3
-rw-r--r--arch/x86/pci/i386.c14
-rw-r--r--arch/x86/pci/irq.c2
-rw-r--r--arch/x86/pci/mmconfig-shared.c17
-rw-r--r--arch/xtensa/kernel/pci.c15
25 files changed, 155 insertions, 154 deletions
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index a91ba28999b..c9ab94ee1ca 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -126,8 +126,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_final);
#define MB (1024*KB)
#define GB (1024*MB)
-void
-pcibios_align_resource(void *data, struct resource *res,
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
@@ -184,7 +184,7 @@ pcibios_align_resource(void *data, struct resource *res,
}
}
- res->start = start;
+ return start;
}
#undef KB
#undef MB
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 809681900ec..bd397e0b663 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -616,15 +616,17 @@ char * __init pcibios_setup(char *str)
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might be mirrored at 0x0100-0x03ff..
*/
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
+ resource_size_t size, resource_size_t align)
{
resource_size_t start = res->start;
if (res->flags & IORESOURCE_IO && start & 0x300)
start = (start + 0x3ff) & ~0x3ff;
- res->start = (start + align - 1) & ~(align - 1);
+ start = (start + align - 1) & ~(align - 1);
+
+ return start;
}
/**
diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
index 77ee319193c..d4b9c36ddc0 100644
--- a/arch/cris/arch-v32/drivers/pci/bios.c
+++ b/arch/cris/arch-v32/drivers/pci/bios.c
@@ -41,18 +41,16 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
return 0;
}
-void
-pcibios_align_resource(void *data, struct resource *res,
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
- if (res->flags & IORESOURCE_IO) {
- resource_size_t start = res->start;
+ resource_size_t start = res->start;
- if (start & 0x300) {
- start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
- }
+ if ((res->flags & IORESOURCE_IO) && (start & 0x300))
+ start = (start + 0x3ff) & ~0x3ff;
+
+ return start
}
int pcibios_enable_resources(struct pci_dev *dev, int mask)
diff --git a/arch/frv/mb93090-mb00/pci-frv.c b/arch/frv/mb93090-mb00/pci-frv.c
index 566bdeb499d..1ed15d7fea2 100644
--- a/arch/frv/mb93090-mb00/pci-frv.c
+++ b/arch/frv/mb93090-mb00/pci-frv.c
@@ -32,18 +32,16 @@
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might have be mirrored at 0x0100-0x03ff..
*/
-void
-pcibios_align_resource(void *data, struct resource *res,
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
- if (res->flags & IORESOURCE_IO) {
- resource_size_t start = res->start;
+ resource_size_t start = res->start;
- if (start & 0x300) {
- start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
- }
+ if ((res->flags & IORESOURCE_IO) && (start & 0x300))
+ start = (start + 0x3ff) & ~0x3ff;
+
+ return start
}
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index e97b255d97b..93997bd5edc 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -98,6 +98,7 @@ ia64_acpi_release_global_lock (unsigned int *lock)
#endif
#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
static inline void disable_acpi(void) { }
+static inline void pci_acpi_crs_quirks(void) { }
const char *acpi_get_sysname (void);
int acpi_request_vector (u32 int_type);
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index df639db779f..64aff520b89 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -320,9 +320,9 @@ static __devinit acpi_status add_window(struct acpi_resource *res, void *data)
static void __devinit
pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl)
{
- int i, j;
+ int i;
- j = 0;
+ pci_bus_remove_resources(bus);
for (i = 0; i < ctrl->windows; i++) {
struct resource *res = &ctrl->window[i].resource;
/* HP's firmware has a hack to work around a Windows bug.
@@ -330,13 +330,7 @@ pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl)
if ((res->flags & IORESOURCE_MEM) &&
(res->end - res->start < 16))
continue;
- if (j >= PCI_BUS_NUM_RESOURCES) {
- dev_warn(&bus->dev,
- "ignoring host bridge window %pR (no space)\n",
- res);
- continue;
- }
- bus->resource[j++] = res;
+ pci_bus_add_resource(bus, res, 0);
}
}
@@ -452,13 +446,12 @@ EXPORT_SYMBOL(pcibios_bus_to_resource);
static int __devinit is_valid_resource(struct pci_dev *dev, int idx)
{
unsigned int i, type_mask = IORESOURCE_IO | IORESOURCE_MEM;
- struct resource *devr = &dev->resource[idx];
+ struct resource *devr = &dev->resource[idx], *busr;
if (!dev->bus)
return 0;
- for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) {
- struct resource *busr = dev->bus->resource[i];
+ pci_bus_for_each_resource(dev->bus, busr, i) {
if (!busr || ((busr->flags ^ devr->flags) & type_mask))
continue;
if ((devr->start) && (devr->start >= busr->start) &&
@@ -547,10 +540,11 @@ pcibios_disable_device (struct pci_dev *dev)
acpi_pci_irq_disable(dev);
}
-void
-pcibios_align_resource (void *data, struct resource *res,
+resource_size_t
+pcibios_align_resource (void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
+ return res->start;
}
/*
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 9a11c222689..f87f5e188fa 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -49,8 +49,8 @@ static int pci_initialized;
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might have be mirrored at 0x0100-0x03ff..
*/
-void
-pcibios_align_resource(void *data, struct resource *res,
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
@@ -73,7 +73,7 @@ pcibios_align_resource(void *data, struct resource *res,
start = PCIBIOS_MIN_MEM + hose->mem_resource->start;
}
- res->start = start;
+ return start;
}
static void __devinit pcibios_scanbus(struct pci_controller *hose)
diff --git a/arch/mips/pmc-sierra/yosemite/ht.c b/arch/mips/pmc-sierra/yosemite/ht.c
index 678388fd34b..fd22597edb6 100644
--- a/arch/mips/pmc-sierra/yosemite/ht.c
+++ b/arch/mips/pmc-sierra/yosemite/ht.c
@@ -345,14 +345,13 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
return pcibios_enable_resources(dev);
}
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
+ resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
+ resource_size_t start = res->start;
if (res->flags & IORESOURCE_IO) {
- resource_size_t start = res->start;
-
/* We need to avoid collisions with `mirrored' VGA ports
and other strange ISA hardware, so we always want the
addresses kilobyte aligned. */
@@ -363,8 +362,9 @@ void pcibios_align_resource(void *data, struct resource *res,
}
start = (start + 1024 - 1) & ~(1024 - 1);
- res->start = start;
}
+
+ return start;
}
struct pci_ops titan_pci_ops = {
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c
index 78cd134ddf7..d6119b879a9 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.c
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.c
@@ -31,9 +31,11 @@
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might have be mirrored at 0x0100-0x03ff..
*/
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
+ resource_size_t size, resource_size_t align)
{
+ resource_size_t start = res->start;
+
#if 0
struct pci_dev *dev = data;
@@ -47,14 +49,10 @@ void pcibios_align_resource(void *data, struct resource *res,
);
#endif
- if (res->flags & IORESOURCE_IO) {
- unsigned long start = res->start;
+ if ((res->flags & IORESOURCE_IO) && (start & 0x300))
+ start = (start + 0x3ff) & ~0x3ff;
- if (start & 0x300) {
- start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
- }
+ return start;
}
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index 2cb7e75ba1c..6d8720a0a59 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -331,12 +331,10 @@ static int __init pci_check_direct(void)
static int __devinit is_valid_resource(struct pci_dev *dev, int idx)
{
unsigned int i, type_mask = IORESOURCE_IO | IORESOURCE_MEM;
- struct resource *devr = &dev->resource[idx];
+ struct resource *devr = &dev->resource[idx], *busr;
if (dev->bus) {
- for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
- struct resource *busr = dev->bus->resource[i];
-
+ pci_bus_for_each_resource(dev->bus, busr, i) {
if (!busr || (busr->flags ^ devr->flags) & type_mask)
continue;
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 9e74bfe071d..38372e7cbb8 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -257,10 +257,10 @@ EXPORT_SYMBOL(pcibios_bus_to_resource);
* Since we are just checking candidates, don't use any fields other
* than res->start.
*/
-void pcibios_align_resource(void *data, struct resource *res,
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t alignment)
{
- resource_size_t mask, align;
+ resource_size_t mask, align, start = res->start;
DBG_RES("pcibios_align_resource(%s, (%p) [%lx,%lx]/%x, 0x%lx, 0x%lx)\n",
pci_name(((struct pci_dev *) data)),
@@ -272,10 +272,10 @@ void pcibios_align_resource(void *data, struct resource *res,
/* Align to largest of MIN or input size */
mask = max(alignment, align) - 1;
- res->start += mask;
- res->start &= ~mask;
+ start += mask;
+ start &= ~mask;
- /* The caller updates the end field, we don't. */
+ return start;
}
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index cadbed679fb..2597f9545d8 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1047,10 +1047,8 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus)
struct pci_dev *dev = bus->self;
- for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
- if ((res = bus->resource[i]) == NULL)
- continue;
- if (!res->flags)
+ pci_bus_for_each_resource(bus, res, i) {
+ if (!res || !res->flags)
continue;
if (i >= 3 && bus->self->transparent)
continue;
@@ -1181,21 +1179,20 @@ static int skip_isa_ioresource_align(struct pci_dev *dev)
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might have be mirrored at 0x0100-0x03ff..
*/
-void pcibios_align_resource(void *data, struct resource *res,
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
+ resource_size_t start = res->start;
if (res->flags & IORESOURCE_IO) {
- resource_size_t start = res->start;
-
if (skip_isa_ioresource_align(dev))
- return;
- if (start & 0x300) {
+ return start;
+ if (start & 0x300)
start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
}
+
+ return start;
}
EXPORT_SYMBOL(pcibios_align_resource);
@@ -1278,9 +1275,8 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus)
pr_debug("PCI: Allocating bus resources for %04x:%02x...\n",
pci_domain_nr(bus), bus->number);
- for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
- if ((res = bus->resource[i]) == NULL || !res->flags
- || res->start > res->end || res->parent)
+ pci_bus_for_each_resource(bus, res, i) {
+ if (!res || !res->flags || res->start > res->end || res->parent)
continue;
if (bus->parent == NULL)
pr = (res->flags & IORESOURCE_IO) ?
diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index fd23a1d4b39..8b0c2082a78 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -222,6 +222,7 @@ static void __devinit quirk_final_uli5249(struct pci_dev *dev)
int i;
u8 *dummy;
struct pci_bus *bus = dev->bus;
+ struct resource *res;
resource_size_t end = 0;
for (i = PCI_BRIDGE_RESOURCES; i < PCI_BRIDGE_RESOURCES+3; i++) {
@@ -230,13 +231,12 @@ static void __devinit quirk_final_uli5249(struct pci_dev *dev)
end = pci_resource_end(dev, i);
}
- for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
- if ((bus->resource[i]) &&
- (bus->resource[i]->flags & IORESOURCE_MEM)) {
- if (bus->resource[i]->end == end)
- dummy = ioremap(bus->resource[i]->start, 0x4);
+ pci_bus_for_each_resource(bus, res, i) {
+ if (res && res->flags & IORESOURCE_MEM) {
+ if (res->end == end)
+ dummy = ioremap(res->start, 0x4);
else
- dummy = ioremap(bus->resource[i]->end - 3, 0x4);
+ dummy = ioremap(res->end - 3, 0x4);
if (dummy) {
in_8(dummy);
iounmap(dummy);
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index c481df63902..96213fd172c 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -148,8 +148,8 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
* addresses to be allocated in the 0x000-0x0ff region
* modulo 0x400.
*/
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
+ resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
struct pci_channel *chan = dev->sysdata;
@@ -171,7 +171,7 @@ void pcibios_align_resource(void *data, struct resource *res,
start = PCIBIOS_MIN_MEM + chan->mem_resource->start;
}
- res->start = start;
+ return start;
}
void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 592b03d8516..37b66c60abe 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -722,9 +722,10 @@ void pcibios_update_irq(struct pci_dev *pdev, int irq)
{
}
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
+ resource_size_t size, resource_size_t align)
{
+ return res->start;
}
int pcibios_enable_device(struct pci_dev *dev, int mask)
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 4e2724ec2bb..75e88c00bca 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -768,9 +768,10 @@ char * __devinit pcibios_setup(char *str)
return str;
}
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
+ resource_size_t size, resource_size_t align)
{
+ return res->start;
}
int pcibios_enable_device(struct pci_dev *pdev, int mask)
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index b4bf9a942ed..05b58ccb2e8 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -29,6 +29,7 @@
#define PCI_CHECK_ENABLE_AMD_MMCONF 0x20000
#define PCI_HAS_IO_ECS 0x40000
#define PCI_NOASSIGN_ROMS 0x80000
+#define PCI_ROOT_NO_CRS 0x100000
extern unsigned int pci_probe;
extern unsigned long pirq_table_addr;
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 959e548a703..5f11ff6f538 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -15,6 +15,51 @@ struct pci_root_info {
int busnum;
};
+static bool pci_use_crs = true;
+
+static int __init set_use_crs(const struct dmi_system_id *id)
+{
+ pci_use_crs = true;
+ return 0;
+}
+
+static const struct dmi_system_id pci_use_crs_table[] __initconst = {
+ /* http://bugzilla.kernel.org/show_bug.cgi?id=14183 */
+ {
+ .callback = set_use_crs,
+ .ident = "IBM System x3800",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "x3800"),
+ },
+ },
+ {}
+};
+
+void __init pci_acpi_crs_quirks(void)
+{
+ int year;
+
+ if (dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL) && year < 2008)
+ pci_use_crs = false;
+
+ dmi_check_system(pci_use_crs_table);
+
+ /*
+ * If the user specifies "pci=use_crs" or "pci=nocrs" explicitly, that
+ * takes precedence over anything we figured out above.
+ */
+ if (pci_probe & PCI_ROOT_NO_CRS)
+ pci_use_crs = false;
+ else if (pci_probe & PCI_USE__CRS)
+ pci_use_crs = true;
+
+ printk(KERN_INFO "PCI: %s host bridge windows from ACPI; "
+ "if necessary, use \"pci=%s\" and report a bug\n",
+ pci_use_crs ? "Using" : "Ignoring",
+ pci_use_crs ? "nocrs" : "use_crs");
+}
+
static acpi_status
resource_to_addr(struct acpi_resource *resource,
struct acpi_resource_address64 *addr)
@@ -45,20 +90,6 @@ count_resource(struct acpi_resource *acpi_res, void *data)
return AE_OK;
}
-static int
-bus_has_transparent_bridge(struct pci_bus *bus)
-{
- struct pci_dev *dev;
-
- list_for_each_entry(dev, &bus->devices, bus_list) {
- u16 class = dev->class >> 8;
-
- if (class == PCI_CLASS_BRIDGE_PCI && dev->transparent)
- return true;
- }
- return false;
-}
-
static void
align_resource(struct acpi_device *bridge, struct resource *res)
{
@@ -92,12 +123,8 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
acpi_status status;
unsigned long flags;
struct resource *root;
- int max_root_bus_resources = PCI_BUS_NUM_RESOURCES;
u64 start, end;
- if (bus_has_transparent_bridge(info->bus))
- max_root_bus_resources -= 3;
-
status = resource_to_addr(acpi_res, &addr);
if (!ACPI_SUCCESS(status))
return AE_OK;
@@ -115,15 +142,6 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
start = addr.minimum + addr.translation_offset;
end = start + addr.address_length - 1;
- if (info->res_num >= max_root_bus_resources) {
- if (pci_probe & PCI_USE__CRS)
- printk(KERN_WARNING "PCI: Failed to allocate "
- "0x%lx-0x%lx from %s for %s due to _CRS "
- "returning more than %d resource descriptors\n",
- (unsigned long) start, (unsigned long) end,
- root->name, info->name, max_root_bus_resources);
- return AE_OK;
- }
res = &info->res[info->res_num];
res->name = info->name;
@@ -133,7 +151,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
res->child = NULL;
align_resource(info->bridge, res);
- if (!(pci_probe & PCI_USE__CRS)) {
+ if (!pci_use_crs) {
dev_printk(KERN_DEBUG, &info->bridge->dev,
"host bridge window %pR (ignored)\n", res);
return AE_OK;
@@ -143,7 +161,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
dev_err(&info->bridge->dev,
"can't allocate host bridge window %pR\n", res);
} else {
- info->bus->resource[info->res_num] = res;
+ pci_bus_add_resource(info->bus, res, 0);
info->res_num++;
if (addr.translation_offset)
dev_info(&info->bridge->dev, "host bridge window %pR "
@@ -164,10 +182,8 @@ get_current_resources(struct acpi_device *device, int busnum,
struct pci_root_info info;
size_t size;
- if (!(pci_probe & PCI_USE__CRS))
- dev_info(&device->dev,
- "ignoring host bridge windows from ACPI; "
- "boot with \"pci=use_crs\" to use them\n");
+ if (pci_use_crs)
+ pci_bus_remove_resources(bus);
info.bridge = device;
info.bus = bus;
diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c
index f939d603adf..12d54ff3654 100644
--- a/arch/x86/pci/bus_numa.c
+++ b/arch/x86/pci/bus_numa.c
@@ -36,13 +36,14 @@ void x86_pci_root_bus_res_quirks(struct pci_bus *b)
printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
b->number);
+ pci_bus_remove_resources(b);
info = &pci_root_info[i];
for (j = 0; j < info->res_num; j++) {
struct resource *res;
struct resource *root;
res = &info->res[j];
- b->resource[j] = res;
+ pci_bus_add_resource(b, res, 0);
if (res->flags & IORESOURCE_IO)
root = &ioport_resource;
else
diff --git a/arch/x86/pci/bus_numa.h b/arch/x86/pci/bus_numa.h
index adbc23fe82a..731b64ee8d8 100644
--- a/arch/x86/pci/bus_numa.h
+++ b/arch/x86/pci/bus_numa.h
@@ -2,8 +2,7 @@
/*
* sub bus (transparent) will use entres from 3 to store extra from
- * root, so need to make sure we have enough slot there, Should we
- * increase PCI_BUS_NUM_RESOURCES?
+ * root, so need to make sure we have enough slot there.
*/
#define RES_NUM 16
struct pci_root_info {
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index d2552c68e94..3736176acaa 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -520,6 +520,9 @@ char * __devinit pcibios_setup(char *str)
} else if (!strcmp(str, "use_crs")) {
pci_probe |= PCI_USE__CRS;
return NULL;
+ } else if (!strcmp(str, "nocrs")) {
+ pci_probe |= PCI_ROOT_NO_CRS;
+ return NULL;
} else if (!strcmp(str, "earlydump")) {
pci_early_dump_regs = 1;
return NULL;
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 5dc9e8c63fc..5a8fbf8d4ca 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -60,22 +60,20 @@ skip_isa_ioresource_align(struct pci_dev *dev) {
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might have be mirrored at 0x0100-0x03ff..
*/
-void
-pcibios_align_resource(void *data, struct resource *res,
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
+ resource_size_t start = res->start;
if (res->flags & IORESOURCE_IO) {
- resource_size_t start = res->start;
-
if (skip_isa_ioresource_align(dev))
- return;
- if (start & 0x300) {
+ return start;
+ if (start & 0x300)
start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
}
+ return start;
}
EXPORT_SYMBOL(pcibios_align_resource);
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 0696d506c4a..b02f6d8ac92 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -590,6 +590,8 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
case PCI_DEVICE_ID_INTEL_ICH10_1:
case PCI_DEVICE_ID_INTEL_ICH10_2:
case PCI_DEVICE_ID_INTEL_ICH10_3:
+ case PCI_DEVICE_ID_INTEL_CPT_LPC1:
+ case PCI_DEVICE_ID_INTEL_CPT_LPC2:
r->name = "PIIX/ICH";
r->get = pirq_piix_get;
r->set = pirq_piix_set;
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index b19d1e54201..8f3f9a50b1e 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -303,22 +303,17 @@ static void __init pci_mmcfg_check_end_bus_number(void)
{
struct pci_mmcfg_region *cfg, *cfgx;
- /* last one*/
- cfg = list_entry(pci_mmcfg_list.prev, typeof(*cfg), list);
- if (cfg)
- if (cfg->end_bus < cfg->start_bus)
- cfg->end_bus = 255;
-
- if (list_is_singular(&pci_mmcfg_list))
- return;
-
- /* don't overlap please */
+ /* Fixup overlaps */
list_for_each_entry(cfg, &pci_mmcfg_list, list) {
if (cfg->end_bus < cfg->start_bus)
cfg->end_bus = 255;
+ /* Don't access the list head ! */
+ if (cfg->list.next == &pci_mmcfg_list)
+ break;
+
cfgx = list_entry(cfg->list.next, typeof(*cfg), list);
- if (cfg != cfgx && cfg->end_bus >= cfgx->start_bus)
+ if (cfg->end_bus >= cfgx->start_bus)
cfg->end_bus = cfgx->start_bus - 1;
}
}
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index b7c073484e0..cd102693120 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -69,26 +69,25 @@ static int pci_bus_count;
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might have be mirrored at 0x0100-0x03ff..
*/
-void
-pcibios_align_resource(void *data, struct resource *res, resource_size_t size,
- resource_size_t align)
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
+ resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
+ resource_size_t start = res->start;
if (res->flags & IORESOURCE_IO) {
- resource_size_t start = res->start;
-
if (size > 0x100) {
printk(KERN_ERR "PCI: I/O Region %s/%d too large"
" (%ld bytes)\n", pci_name(dev),
dev->resource - res, size);
}
- if (start & 0x300) {
+ if (start & 0x300)
start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
}
+
+ return start;
}
int
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 12:56:46 +0000