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| author | Bjorn Helgaas <bhelgaas@google.com> | 2012-06-23 01:39:00 +0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-06-23 01:39:00 +0400 |
| commit | e5028b52e46eb1379d78d136bd0890705f331183 (patch) | |
| tree | 5279eabc18e590a7fcc9d3f96528a9defada14f8 /drivers/pci | |
| parent | 0f6662a49bf1b5a163ed4e6321c382d2390c817b (diff) | |
| parent | 397038519f2c2ac68c125c0cd766e91041c52b30 (diff) | |
| download | linux-e5028b52e46eb1379d78d136bd0890705f331183.tar.xz | |
Merge branch 'topic/jiang-mmconfig-v10' into next
* topic/jiang-mmconfig-v10:
ACPI: mark acpi_sfi_table_parse() as __init
x86/PCI: use pr_level() to replace printk(KERN_LEVEL)
x86/PCI: refine __pci_mmcfg_init() for better code readability
x86/PCI: get rid of redundant log messages
x86/PCI: simplify pci_mmcfg_late_insert_resources()
x86/PCI: update MMCONFIG information when hot-plugging PCI host bridges
PCI/ACPI: provide MMCONFIG address for PCI host bridges
x86/PCI: add pci_mmconfig_insert()/delete() for PCI root bridge hotplug
x86/PCI: prepare pci_mmcfg_check_reserved() to be called at runtime
x86/PCI: introduce pci_mmcfg_arch_map()/pci_mmcfg_arch_unmap()
x86/PCI: use RCU list to protect mmconfig list
x86/PCI: split out pci_mmconfig_alloc() for code reuse
x86/PCI: split out pci_mmcfg_check_reserved() for code reuse
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci-acpi.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 61e2fefeedab..87f4c504eafb 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -162,6 +162,20 @@ acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev) return remove_pm_notifier(dev, pci_acpi_wake_dev); } +phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle) +{ + acpi_status status = AE_NOT_EXIST; + unsigned long long mcfg_addr; + + if (handle) + status = acpi_evaluate_integer(handle, METHOD_NAME__CBA, + NULL, &mcfg_addr); + if (ACPI_FAILURE(status)) + return 0; + + return (phys_addr_t)mcfg_addr; +} + /* * _SxD returns the D-state with the highest power * (lowest D-state number) supported in the S-state "x". |