diff options
| author | Jiang Liu | 2012-06-22 08:55:16 +0200 |
|---|---|---|
| committer | Bjorn Helgaas | 2012-06-22 23:16:51 +0200 |
| commit | f4b57a3b4352f72e461e362cb25917e28bdba80f (patch) | |
| tree | 645b4c86120578cae02e0e4065ba2b39d77bb539 /include | |
| parent | x86/PCI: add pci_mmconfig_insert()/delete() for PCI root bridge hotplug (diff) | |
| download | kernel-qcow2-linux-f4b57a3b4352f72e461e362cb25917e28bdba80f.tar.gz kernel-qcow2-linux-f4b57a3b4352f72e461e362cb25917e28bdba80f.tar.xz kernel-qcow2-linux-f4b57a3b4352f72e461e362cb25917e28bdba80f.zip | |
PCI/ACPI: provide MMCONFIG address for PCI host bridges
This patch provide MMCONFIG address for PCI host bridges, which will
be used to support host bridge hotplug. It gets MMCONFIG address
by evaluating _CBA method if available.
Reviewed-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/acpi/acnames.h | 1 | ||||
| -rw-r--r-- | include/acpi/acpi_bus.h | 1 | ||||
| -rw-r--r-- | include/linux/pci-acpi.h | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h index 38f508816e4a..b177f97f53b6 100644 --- a/include/acpi/acnames.h +++ b/include/acpi/acnames.h @@ -62,6 +62,7 @@ #define METHOD_NAME__AEI "_AEI" #define METHOD_NAME__PRW "_PRW" #define METHOD_NAME__SRS "_SRS" +#define METHOD_NAME__CBA "_CBA" /* Method names - these methods must appear at the namespace root */ diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 9e6e1c6eb60a..457974073994 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -401,6 +401,7 @@ struct acpi_pci_root { u32 osc_support_set; /* _OSC state of support bits */ u32 osc_control_set; /* _OSC state of control bits */ + phys_addr_t mcfg_addr; }; /* helper */ diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 44623500f419..248fba2af98a 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -17,6 +17,7 @@ extern acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev); extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev, struct pci_dev *pci_dev); extern acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev); +extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle); static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev) { |