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 --- arch/x86/pci/common.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 62ddb73e09e..9ab8509f7b1 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -562,6 +562,14 @@ void pcibios_disable_device (struct pci_dev *dev) pcibios_disable_irq(dev); } +int pci_ext_cfg_avail(struct pci_dev *dev) +{ + if (raw_pci_ext_ops) + return 1; + else + return 0; +} + struct pci_bus * __devinit pci_scan_bus_on_node(int busno, struct pci_ops *ops, int node) { struct pci_bus *bus = NULL; -- cgit v1.2.3