diff options
Diffstat (limited to 'arch/x86/pci/mmconfig-shared.c')
| -rw-r--r-- | arch/x86/pci/mmconfig-shared.c | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c index 4df637e34f8..6b521d38932 100644 --- a/arch/x86/pci/mmconfig-shared.c +++ b/arch/x86/pci/mmconfig-shared.c @@ -22,42 +22,9 @@ #define MMCONFIG_APER_MIN (2 * 1024*1024) #define MMCONFIG_APER_MAX (256 * 1024*1024) -DECLARE_BITMAP(pci_mmcfg_fallback_slots, 32*PCI_MMCFG_MAX_CHECK_BUS); - /* Indicate if the mmcfg resources have been placed into the resource table. */ static int __initdata pci_mmcfg_resources_inserted; -/* K8 systems have some devices (typically in the builtin northbridge) - that are only accessible using type1 - Normally this can be expressed in the MCFG by not listing them - and assigning suitable _SEGs, but this isn't implemented in some BIOS. - Instead try to discover all devices on bus 0 that are unreachable using MM - and fallback for them. */ -static void __init unreachable_devices(void) -{ - int i, bus; - /* Use the max bus number from ACPI here? */ - for (bus = 0; bus < PCI_MMCFG_MAX_CHECK_BUS; bus++) { - for (i = 0; i < 32; i++) { - unsigned int devfn = PCI_DEVFN(i, 0); - u32 val1, val2; - - pci_conf1_read(0, bus, devfn, 0, 4, &val1); - if (val1 == 0xffffffff) - continue; - - 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); - } - } -} - static const char __init *pci_mmcfg_e7520(void) { u32 win; @@ -270,8 +237,6 @@ void __init pci_mmcfg_init(int type) return; if (pci_mmcfg_arch_init()) { - if (type == 1) - unreachable_devices(); if (known_bridge) pci_mmcfg_insert_resources(IORESOURCE_BUSY); pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF; |