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| author | Andrew Patterson <andrew.patterson@hp.com> | 2008-01-22 17:18:12 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-02-01 15:04:29 -0800 |
| commit | c2778357234f84668eab5558b54ad28478439d0b (patch) | |
| tree | 9820e6cfa1bfe6989854425b0d63840c949fa3f2 /include/linux/pci-acpi.h | |
| parent | 02d90fc343411d6dff26bbd64f0895a243e6f608 (diff) | |
| download | blackbird-op-linux-c2778357234f84668eab5558b54ad28478439d0b.tar.gz blackbird-op-linux-c2778357234f84668eab5558b54ad28478439d0b.zip | |
PCI ACPI: Added a function to register _OSC with only PCIe devices.
The function pci_osc_support_set() traverses every root bridge when
checking for _OSC support for a capability. It quits as soon as it finds a
device/bridge that doesn't support the requested capability. This won't
work for systems that have mixed PCI and PCIe bridges when checking for
PCIe features. I split this function into two -- pci_osc_support_set() and
pcie_osc_support_set(). The latter is used when only PCIe devices should be
traversed.
Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/pci-acpi.h')
| -rw-r--r-- | include/linux/pci-acpi.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 936ef82ed76a..3ba25065fa96 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -48,7 +48,15 @@ #ifdef CONFIG_ACPI extern acpi_status pci_osc_control_set(acpi_handle handle, u32 flags); -extern acpi_status pci_osc_support_set(u32 flags); +extern acpi_status __pci_osc_support_set(u32 flags, const char *hid); +static inline acpi_status pci_osc_support_set(u32 flags) +{ + return __pci_osc_support_set(flags, PCI_ROOT_HID_STRING); +} +static inline acpi_status pcie_osc_support_set(u32 flags) +{ + return __pci_osc_support_set(flags, PCI_EXPRESS_ROOT_HID_STRING); +} #else #if !defined(AE_ERROR) typedef u32 acpi_status; @@ -57,6 +65,7 @@ typedef u32 acpi_status; static inline acpi_status pci_osc_control_set(acpi_handle handle, u32 flags) {return AE_ERROR;} static inline acpi_status pci_osc_support_set(u32 flags) {return AE_ERROR;} +static inline acpi_status pcie_osc_support_set(u32 flags) {return AE_ERROR;} #endif #endif /* _PCI_ACPI_H_ */ |
