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| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2009-11-13 17:34:49 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-11-24 15:30:14 -0800 |
| commit | ff097ddd4aeac790fd51d013c79c2f18ec9a7117 (patch) | |
| tree | 4a77f081e4ac7e93aa74a102bf372419699468b9 /arch/x86/pci/mmconfig_64.c | |
| parent | 987c367b4e93be6826394e7c9cc14d28bb5c8810 (diff) | |
| download | blackbird-op-linux-ff097ddd4aeac790fd51d013c79c2f18ec9a7117.tar.gz blackbird-op-linux-ff097ddd4aeac790fd51d013c79c2f18ec9a7117.zip | |
x86/PCI: MMCONFIG: manage pci_mmcfg_region as a list, not a table
This changes pci_mmcfg_region from a table to a list, to make it easier
to add and remove MMCONFIG regions for PCI host bridge hotplug.
Reviewed-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/x86/pci/mmconfig_64.c')
| -rw-r--r-- | arch/x86/pci/mmconfig_64.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/arch/x86/pci/mmconfig_64.c b/arch/x86/pci/mmconfig_64.c index 78fa05c6c04d..ed1f479b4d0e 100644 --- a/arch/x86/pci/mmconfig_64.c +++ b/arch/x86/pci/mmconfig_64.c @@ -14,16 +14,13 @@ static char __iomem *get_virt(unsigned int seg, unsigned bus) { - int i; struct pci_mmcfg_region *cfg; - for (i = 0; i < pci_mmcfg_config_num; ++i) { - cfg = &pci_mmcfg_config[i]; + list_for_each_entry(cfg, &pci_mmcfg_list, list) if (cfg->segment == seg && (cfg->start_bus <= bus) && (cfg->end_bus >= bus)) return cfg->virt; - } /* Fall back to type 0 */ return NULL; @@ -122,11 +119,9 @@ static void __iomem * __init mcfg_ioremap(struct pci_mmcfg_region *cfg) int __init pci_mmcfg_arch_init(void) { - int i; struct pci_mmcfg_region *cfg; - for (i = 0; i < pci_mmcfg_config_num; ++i) { - cfg = &pci_mmcfg_config[i]; + list_for_each_entry(cfg, &pci_mmcfg_list, list) { cfg->virt = mcfg_ioremap(cfg); if (!cfg->virt) { printk(KERN_ERR "PCI: Cannot map mmconfig aperture for " @@ -142,11 +137,9 @@ int __init pci_mmcfg_arch_init(void) void __init pci_mmcfg_arch_free(void) { - int i; struct pci_mmcfg_region *cfg; - for (i = 0; i < pci_mmcfg_config_num; ++i) { - cfg = &pci_mmcfg_config[i]; + list_for_each_entry(cfg, &pci_mmcfg_list, list) { if (cfg->virt) { iounmap(cfg->virt + PCI_MMCFG_BUS_OFFSET(cfg->start_bus)); cfg->virt = NULL; |
