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x86/PCI: MMCONFIG: add pci_mmconfig_remove() to remove MMCONFIG region

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This is only used internally now, but eventually will be used in the
hot-remove path to remove the MMCONFIG region associated with a host bridge.

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 17:34:54 -07:00 committed by Jesse Barnes
parent ff097ddd4a
commit ba2afbabfc
1 changed files with 10 additions and 6 deletions
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16
arch/x86/pci/mmconfig-shared.c
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@ -27,17 +27,21 @@ static int __initdata pci_mmcfg_resources_inserted;
LIST_HEAD(pci_mmcfg_list); LIST_HEAD(pci_mmcfg_list);
static __init void pci_mmconfig_remove(struct pci_mmcfg_region *cfg)
{
if (cfg->res.parent)
release_resource(&cfg->res);
list_del(&cfg->list);
kfree(cfg);
}
static __init void free_all_mmcfg(void) static __init void free_all_mmcfg(void)
{ {
struct pci_mmcfg_region *cfg, *tmp; struct pci_mmcfg_region *cfg, *tmp;
pci_mmcfg_arch_free(); pci_mmcfg_arch_free();
list_for_each_entry_safe(cfg, tmp, &pci_mmcfg_list, list) { list_for_each_entry_safe(cfg, tmp, &pci_mmcfg_list, list)
if (cfg->res.parent) pci_mmconfig_remove(cfg);
release_resource(&cfg->res);
list_del(&cfg->list);
kfree(cfg);
}
} }
static __init void list_add_sorted(struct pci_mmcfg_region *new) static __init void list_add_sorted(struct pci_mmcfg_region *new)