diff options
author | Clark Williams <williams@redhat.com> | 2012-01-25 21:31:16 -0600 |
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committer | Clark Williams <williams@redhat.com> | 2012-01-25 21:31:16 -0600 |
commit | 974f4b86951972b133b4ec5b36956b979dea08d0 (patch) | |
tree | 090b441b1c96f708e8a033c7f88fa383dd1e7cba /arch/x86/pci/amd_bus.c | |
parent | 40a54e2e116950a27dbd0a46a7b1ff8e982de477 (diff) | |
parent | 3499d6424f682a58761d827012567c552b053842 (diff) |
Merge commit 'v3.2.2' into rt-3.2.2-rt10
Diffstat (limited to 'arch/x86/pci/amd_bus.c')
-rw-r--r-- | arch/x86/pci/amd_bus.c | 42 |
1 files changed, 11 insertions, 31 deletions
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index 026e4931d162..385a940b5422 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -30,34 +30,6 @@ static struct pci_hostbridge_probe pci_probes[] __initdata = { { 0, 0x18, PCI_VENDOR_ID_AMD, 0x1300 }, }; -static u64 __initdata fam10h_mmconf_start; -static u64 __initdata fam10h_mmconf_end; -static void __init get_pci_mmcfg_amd_fam10h_range(void) -{ - u32 address; - u64 base, msr; - unsigned segn_busn_bits; - - /* assume all cpus from fam10h have mmconf */ - if (boot_cpu_data.x86 < 0x10) - return; - - address = MSR_FAM10H_MMIO_CONF_BASE; - rdmsrl(address, msr); - - /* mmconfig is not enable */ - if (!(msr & FAM10H_MMIO_CONF_ENABLE)) - return; - - base = msr & (FAM10H_MMIO_CONF_BASE_MASK<<FAM10H_MMIO_CONF_BASE_SHIFT); - - segn_busn_bits = (msr >> FAM10H_MMIO_CONF_BUSRANGE_SHIFT) & - FAM10H_MMIO_CONF_BUSRANGE_MASK; - - fam10h_mmconf_start = base; - fam10h_mmconf_end = base + (1ULL<<(segn_busn_bits + 20)) - 1; -} - #define RANGE_NUM 16 /** @@ -85,6 +57,9 @@ static int __init early_fill_mp_bus_info(void) u64 val; u32 address; bool found; + struct resource fam10h_mmconf_res, *fam10h_mmconf; + u64 fam10h_mmconf_start; + u64 fam10h_mmconf_end; if (!early_pci_allowed()) return -1; @@ -211,12 +186,17 @@ static int __init early_fill_mp_bus_info(void) subtract_range(range, RANGE_NUM, 0, end); /* get mmconfig */ - get_pci_mmcfg_amd_fam10h_range(); + fam10h_mmconf = amd_get_mmconfig_range(&fam10h_mmconf_res); /* need to take out mmconf range */ - if (fam10h_mmconf_end) { - printk(KERN_DEBUG "Fam 10h mmconf [%llx, %llx]\n", fam10h_mmconf_start, fam10h_mmconf_end); + if (fam10h_mmconf) { + printk(KERN_DEBUG "Fam 10h mmconf %pR\n", fam10h_mmconf); + fam10h_mmconf_start = fam10h_mmconf->start; + fam10h_mmconf_end = fam10h_mmconf->end; subtract_range(range, RANGE_NUM, fam10h_mmconf_start, fam10h_mmconf_end + 1); + } else { + fam10h_mmconf_start = 0; + fam10h_mmconf_end = 0; } /* mmio resource */ |