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authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2006-01-15 23:45:23 -0500
committerTony Luck <tony.luck@intel.com>2006-01-16 18:30:10 -0500
commit7b9c8ba2d634a0467a8a36018a28624563f34f47 (patch)
treef973b2dffd95904843a060e5fc35bf5451f3ca74 /arch
parent1681b8e1588f9119899e422181f728b197b1fe34 (diff)
[IA64] Stop multiple pci_claim_resource() call for the same resource
This patch fixes the bug that pci_claim_resource() is called multiple times for the same P2P bridge's resource structures if P2P bridges require their own PCI I/O resources. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/pci/pci.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 30dbc98bf0b3..d27ecdcb6fca 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -454,14 +454,13 @@ static int __devinit is_valid_resource(struct pci_dev *dev, int idx)
454 return 0; 454 return 0;
455} 455}
456 456
457static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev) 457static void __devinit
458pcibios_fixup_resources(struct pci_dev *dev, int start, int limit)
458{ 459{
459 struct pci_bus_region region; 460 struct pci_bus_region region;
460 int i; 461 int i;
461 int limit = (dev->hdr_type == PCI_HEADER_TYPE_NORMAL) ? \
462 PCI_BRIDGE_RESOURCES : PCI_NUM_RESOURCES;
463 462
464 for (i = 0; i < limit; i++) { 463 for (i = start; i < limit; i++) {
465 if (!dev->resource[i].flags) 464 if (!dev->resource[i].flags)
466 continue; 465 continue;
467 region.start = dev->resource[i].start; 466 region.start = dev->resource[i].start;
@@ -472,6 +471,16 @@ static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
472 } 471 }
473} 472}
474 473
474static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
475{
476 pcibios_fixup_resources(dev, 0, PCI_BRIDGE_RESOURCES);
477}
478
479static void __devinit pcibios_fixup_bridge_resources(struct pci_dev *dev)
480{
481 pcibios_fixup_resources(dev, PCI_BRIDGE_RESOURCES, PCI_NUM_RESOURCES);
482}
483
475/* 484/*
476 * Called after each bus is probed, but before its children are examined. 485 * Called after each bus is probed, but before its children are examined.
477 */ 486 */
@@ -482,7 +491,7 @@ pcibios_fixup_bus (struct pci_bus *b)
482 491
483 if (b->self) { 492 if (b->self) {
484 pci_read_bridge_bases(b); 493 pci_read_bridge_bases(b);
485 pcibios_fixup_device_resources(b->self); 494 pcibios_fixup_bridge_resources(b->self);
486 } 495 }
487 list_for_each_entry(dev, &b->devices, bus_list) 496 list_for_each_entry(dev, &b->devices, bus_list)
488 pcibios_fixup_device_resources(dev); 497 pcibios_fixup_device_resources(dev);