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x86/PCI: add pci_mmconfig_insert()/delete() for PCI root bridge hotplug

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Introduce pci_mmconfig_insert()/pci_mmconfig_delete(), which will be used
to update MMCONFIG information when supporting PCI root bridge hotplug.

Reviewed-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Jiang Liu
2012-06-22 14:55:15 +08:00
committed by Bjorn Helgaas
parent 95c5e92f4f
commit 9c95111b33
2 changed files with 109 additions and 4 deletions
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4
arch/x86/include/asm/pci_x86.h
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@@ -137,6 +137,10 @@ extern int __init pci_mmcfg_arch_init(void);
extern void __init pci_mmcfg_arch_free(void);
extern int __devinit pci_mmcfg_arch_map(struct pci_mmcfg_region *cfg);
extern void pci_mmcfg_arch_unmap(struct pci_mmcfg_region *cfg);
extern int __devinit pci_mmconfig_insert(struct device *dev,
u16 seg, u8 start,
u8 end, phys_addr_t addr);
extern int pci_mmconfig_delete(u16 seg, u8 start, u8 end);
extern struct pci_mmcfg_region *pci_mmconfig_lookup(int segment, int bus);
extern struct list_head pci_mmcfg_list;