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authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2006-01-16 13:45:23 +0900
committerTony Luck <tony.luck@intel.com>2006-01-16 15:30:10 -0800
commit7b9c8ba2d634a0467a8a36018a28624563f34f47 (patch)
treef973b2dffd95904843a060e5fc35bf5451f3ca74 /arch/ia64/pci
parent1681b8e1588f9119899e422181f728b197b1fe34 (diff)
downloadlinux-linaro-7b9c8ba2d634a0467a8a36018a28624563f34f47.tar.gz
[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/ia64/pci')
-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 30dbc98bf0b..d27ecdcb6fc 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)
return 0;
}
-static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
+static void __devinit
+pcibios_fixup_resources(struct pci_dev *dev, int start, int limit)
{
struct pci_bus_region region;
int i;
- int limit = (dev->hdr_type == PCI_HEADER_TYPE_NORMAL) ? \
- PCI_BRIDGE_RESOURCES : PCI_NUM_RESOURCES;
- for (i = 0; i < limit; i++) {
+ for (i = start; i < limit; i++) {
if (!dev->resource[i].flags)
continue;
region.start = dev->resource[i].start;
@@ -472,6 +471,16 @@ static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
}
}
+static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
+{
+ pcibios_fixup_resources(dev, 0, PCI_BRIDGE_RESOURCES);
+}
+
+static void __devinit pcibios_fixup_bridge_resources(struct pci_dev *dev)
+{
+ pcibios_fixup_resources(dev, PCI_BRIDGE_RESOURCES, PCI_NUM_RESOURCES);
+}
+
/*
* Called after each bus is probed, but before its children are examined.
*/
@@ -482,7 +491,7 @@ pcibios_fixup_bus (struct pci_bus *b)
if (b->self) {
pci_read_bridge_bases(b);
- pcibios_fixup_device_resources(b->self);
+ pcibios_fixup_bridge_resources(b->self);
}
list_for_each_entry(dev, &b->devices, bus_list)
pcibios_fixup_device_resources(dev);