From 0ef5f8f6159e44b4faa997be08d1a3bcbf44ad08 Mon Sep 17 00:00:00 2001 From: Andrew Patterson Date: Mon, 10 Nov 2008 15:30:50 -0700 Subject: 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 Signed-off-by: Jesse Barnes --- include/linux/pci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') 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) { -- cgit v1.2.3