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authorLinus Torvalds <torvalds@linux-foundation.org>2009-07-07 01:07:00 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-07 01:07:00 +0400
commitdc53fffc105f68cb08ca872acd51550e89aa2e67 (patch)
tree5e2ff1ea44eb76e80f8b0bb4902d4292608d1fd1 /arch
parentf560902c2d39c255bd67c0211f5dd80edb97a712 (diff)
parent46b952a3c3a94afa339bd4961a4f3d1482436599 (diff)
downloadlinux-dc53fffc105f68cb08ca872acd51550e89aa2e67.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: Fix IRQ swizzling for ARI-enabled devices ia64/PCI: adjust section annotation for pcibios_setup() x86/PCI: get root CRS before scanning children x86/PCI: fix boundary checking when using root CRS PCI MSI: Fix restoration of MSI/MSI-X mask states in suspend/resume PCI MSI: Unmask MSI if setup failed PCI MSI: shorten PCI_MSIX_ENTRY_* symbol names PCI: make pci_name() take const argument PCI: More PATA quirks for not entering D3 PCI: fix kernel-doc warnings PCI: check if bus has a proper bridge device before triggering SBR PCI: remove pci_dac_dma_... APIs on mn10300 PCI ECRC: Remove unnecessary semicolons PCI MSI: Return if alloc_msi_entry for MSI-X failed
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/pci/pci.c2
-rw-r--r--arch/mn10300/include/asm/pci.h4
-rw-r--r--arch/x86/pci/acpi.c59
-rw-r--r--arch/x86/pci/amd_bus.c8
4 files changed, 31 insertions, 42 deletions
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 729298f4b234..7de76dd352fe 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -537,7 +537,7 @@ pcibios_align_resource (void *data, struct resource *res,
/*
* PCI BIOS setup, always defaults to SAL interface
*/
-char * __devinit
+char * __init
pcibios_setup (char *str)
{
return str;
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index e58b9a46e1b1..35d2ed6396f6 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -70,10 +70,6 @@ struct pci_dev;
*/
#define PCI_DMA_BUS_IS_PHYS (1)
-
-/* This is always fine. */
-#define pci_dac_dma_supported(pci_dev, mask) (0)
-
/* Return the index of the PCI controller for device. */
static inline int pci_controller_num(struct pci_dev *dev)
{
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index b26626dc517c..1014eb4bfc37 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -68,6 +68,10 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
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))
@@ -84,25 +88,24 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
} else
return AE_OK;
- res = &info->res[info->res_num];
- res->name = info->name;
- res->flags = flags;
- res->start = addr.minimum + addr.translation_offset;
- res->end = res->start + addr.address_length - 1;
- res->child = NULL;
-
- if (bus_has_transparent_bridge(info->bus))
- max_root_bus_resources -= 3;
+ start = addr.minimum + addr.translation_offset;
+ end = start + addr.address_length - 1;
if (info->res_num >= max_root_bus_resources) {
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) res->start,
- (unsigned long) res->end, root->name, info->name,
+ "%d resource descriptors\n", (unsigned long) start,
+ (unsigned long) end, root->name, info->name,
max_root_bus_resources);
- info->res_num++;
return AE_OK;
}
+ res = &info->res[info->res_num];
+ res->name = info->name;
+ res->flags = flags;
+ res->start = start;
+ res->end = end;
+ res->child = NULL;
+
if (insert_resource(root, res)) {
printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx "
"from %s for %s\n", (unsigned long) res->start,
@@ -115,23 +118,6 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
}
static void
-adjust_transparent_bridge_resources(struct pci_bus *bus)
-{
- struct pci_dev *dev;
-
- list_for_each_entry(dev, &bus->devices, bus_list) {
- int i;
- u16 class = dev->class >> 8;
-
- if (class == PCI_CLASS_BRIDGE_PCI && dev->transparent) {
- for(i = 3; i < PCI_BUS_NUM_RESOURCES; i++)
- dev->subordinate->resource[i] =
- dev->bus->resource[i - 3];
- }
- }
-}
-
-static void
get_current_resources(struct acpi_device *device, int busnum,
int domain, struct pci_bus *bus)
{
@@ -158,8 +144,6 @@ get_current_resources(struct acpi_device *device, int busnum,
info.res_num = 0;
acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
&info);
- if (info.res_num)
- adjust_transparent_bridge_resources(bus);
return;
@@ -222,8 +206,15 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
*/
memcpy(bus->sysdata, sd, sizeof(*sd));
kfree(sd);
- } else
- bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd);
+ } else {
+ bus = pci_create_bus(NULL, busnum, &pci_root_ops, sd);
+ if (bus) {
+ if (pci_probe & PCI_USE__CRS)
+ get_current_resources(device, busnum, domain,
+ bus);
+ bus->subordinate = pci_scan_child_bus(bus);
+ }
+ }
if (!bus)
kfree(sd);
@@ -238,8 +229,6 @@ 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, domain, bus);
return bus;
}
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index f893d6a6e803..3ffa10df20b9 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -100,8 +100,9 @@ void x86_pci_root_bus_res_quirks(struct pci_bus *b)
int j;
struct pci_root_info *info;
- /* don't go for it if _CRS is used */
- if (pci_probe & PCI_USE__CRS)
+ /* don't go for it if _CRS is used already */
+ if (b->resource[0] != &ioport_resource ||
+ b->resource[1] != &iomem_resource)
return;
/* if only one root bus, don't need to anything */
@@ -116,6 +117,9 @@ void x86_pci_root_bus_res_quirks(struct pci_bus *b)
if (i == pci_root_num)
return;
+ printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
+ b->number);
+
info = &pci_root_info[i];
for (j = 0; j < info->res_num; j++) {
struct resource *res;