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x86: multi pci root bus with different io resource range, on 64-bit

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scan AMD opteron io/mmio routing to make sure every pci root bus get correct
resource range. Thus later pci scan could assign correct resource to device
with unassigned resource.

this can fix a system without _CRS for multi pci root bus.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Yinghai Lu 2008-02-19 03:21:20 -08:00 • committed by Ingo Molnar
parent 35ddd068fb
commit 30a18d6c3f
5 changed files with 372 additions and 59 deletions
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2
include/linux/pci.h
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@ -254,7 +254,7 @@ static inline void pci_add_saved_cap(struct pci_dev *pci_dev,
#define PCI_NUM_RESOURCES 11
#ifndef PCI_BUS_NUM_RESOURCES
#define PCI_BUS_NUM_RESOURCES 8
#define PCI_BUS_NUM_RESOURCES 16
#endif
#define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */