-stable review patch. If anyone has any objections, please let us know. --------------------- From: Yinghai Lu upstream commit: dfadd9edff498d767008edc6b2a6e86a7a19934d Many host bridges support a 4k config space, so check them directy instead of using quirks to add them. We only need to do this extra check for host bridges at this point, because only host bridges are known to have extended address space without also having a PCI-X/PCI-E caps. Other devices with this property could be done with quirks (if there are any). As a bonus, we can remove the quirks for AMD host bridges with family 10h and 11h since they're not needed any more. With this patch, we can get correct pci cfg size of new Intel CPUs/IOHs with host bridges. Signed-off-by: Yinghai Lu Acked-by: H. Peter Anvin Reviewed-by: Matthew Wilcox Cc: Signed-off-by: Jesse Barnes Signed-off-by: Chris Wright --- arch/x86/pci/fixup.c | 20 -------------------- drivers/pci/probe.c | 9 ++++++++- 2 files changed, 8 insertions(+), 21 deletions(-) --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -495,26 +495,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S pci_siemens_interrupt_controller); /* - * Regular PCI devices have 256 bytes, but AMD Family 10h/11h CPUs have - * 4096 bytes configuration space for each function of their processor - * configuration space. - */ -static void amd_cpu_pci_cfg_space_size(struct pci_dev *dev) -{ - dev->cfg_size = pci_cfg_space_size_ext(dev); -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1200, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1201, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1202, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1203, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1204, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1300, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1301, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1302, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1303, amd_cpu_pci_cfg_space_size); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1304, amd_cpu_pci_cfg_space_size); - -/* * SB600: Disable BAR1 on device 14.0 to avoid HPET resources from * confusing the PCI engine: */ --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -847,6 +847,11 @@ int pci_cfg_space_size(struct pci_dev *d { int pos; u32 status; + u16 class; + + class = dev->class >> 8; + if (class == PCI_CLASS_BRIDGE_HOST) + return pci_cfg_space_size_ext(dev); pos = pci_find_capability(dev, PCI_CAP_ID_EXP); if (!pos) { @@ -936,7 +941,6 @@ static struct pci_dev *pci_scan_device(s dev->multifunction = !!(hdr_type & 0x80); dev->vendor = l & 0xffff; dev->device = (l >> 16) & 0xffff; - dev->cfg_size = pci_cfg_space_size(dev); dev->error_state = pci_channel_io_normal; set_pcie_port_type(dev); @@ -952,6 +956,9 @@ static struct pci_dev *pci_scan_device(s return NULL; } + /* need to have dev->class ready */ + dev->cfg_size = pci_cfg_space_size(dev); + return dev; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/