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authorAndrew Patterson <andrew.patterson@hp.com>2008-11-10 15:30:50 -0700
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-01-07 11:12:28 -0800
commit0ef5f8f6159e44b4faa997be08d1a3bcbf44ad08 (patch)
tree0753c27a1eb2f5802501e60d575f01fe6edccc2f /include/linux
parent990a7ac5645883a833a11b900bb6f25b65dea65b (diff)
ACPI/PCI: PCI extended config _OSC support called when root bridge added
The _OSC capability OSC_EXT_PCI_CONFIG_SUPPORT is set when the root bridge is added with pci_acpi_osc_support() if we can access PCI extended config space. This adds the function pci_ext_cfg_avail which returns true if we can access PCI extended config space (offset greater than 0xff). It currently only returns false if arch=x86 and raw_pci_ext_ops is not set (which might happen if pci=nommcfg is set on the kernel command-line). Signed-off-by: Andrew Patterson <andrew.patterson@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/pci.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 4bb156ba854..6fd47654ca4 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1140,6 +1140,8 @@ static inline void pci_mmcfg_early_init(void) { }
static inline void pci_mmcfg_late_init(void) { }
#endif
+int pci_ext_cfg_avail(struct pci_dev *dev);
+
#ifdef CONFIG_HAS_IOMEM
static inline void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar)
{