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x86/PCI: MMCONFIG: add lookup function

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This patch factors out the search for an MMCONFIG region, which was
previously implemented in both mmconfig_32 and mmconfig_64.  No functional
change.

Reviewed-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Bjorn Helgaas
2009-11-13 17:35:04 -07:00
committed by Jesse Barnes
parent 8c57786ad3
commit f6e1d8cc38
4 changed files with 20 additions and 27 deletions
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arch/x86/include/asm/pci_x86.h
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@@ -134,6 +134,7 @@ struct pci_mmcfg_region {
extern int __init pci_mmcfg_arch_init(void);
extern void __init pci_mmcfg_arch_free(void);
extern struct pci_mmcfg_region *pci_mmconfig_lookup(int segment, int bus);
extern struct list_head pci_mmcfg_list;