diff options
Diffstat (limited to 'arch/i386/pci/mmconfig-shared.c')
| -rw-r--r-- | arch/i386/pci/mmconfig-shared.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/i386/pci/mmconfig-shared.c b/arch/i386/pci/mmconfig-shared.c index 4ea0852487a..473db625701 100644 --- a/arch/i386/pci/mmconfig-shared.c +++ b/arch/i386/pci/mmconfig-shared.c @@ -43,12 +43,14 @@ static void __init unreachable_devices(void) if (val1 == 0xffffffff) continue; - raw_pci_ops->read(0, bus, devfn, 0, 4, &val2); - if (val1 != val2) { - set_bit(i + 32 * bus, pci_mmcfg_fallback_slots); - printk(KERN_NOTICE "PCI: No mmconfig possible" - " on device %02x:%02x\n", bus, i); + if (pci_mmcfg_arch_reachable(0, bus, devfn)) { + raw_pci_ops->read(0, bus, devfn, 0, 4, &val2); + if (val1 == val2) + continue; } + set_bit(i + 32 * bus, pci_mmcfg_fallback_slots); + printk(KERN_NOTICE "PCI: No mmconfig possible on device" + " %02x:%02x\n", bus, i); } } } |