diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-08-22 08:06:51 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-22 08:06:51 +0400 |
| commit | 8b53b57576292b92b27769f9e213df19b6e57786 (patch) | |
| tree | cd851ce4fa71b2653f120d7f11a9c6cbcf311b19 /arch/x86/kernel/acpi/boot.c | |
| parent | ab7e79243746e2a9c5f00243e60108189c44c9eb (diff) | |
| parent | 38cc1c3df77c1bb739a4766788eb9fa49f16ffdf (diff) | |
| download | linux-8b53b57576292b92b27769f9e213df19b6e57786.tar.xz | |
Merge branch 'x86/urgent' into x86/pat
Conflicts:
arch/x86/mm/pageattr.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/acpi/boot.c')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index fa88a1d71290..bfd10fd211cd 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -97,6 +97,8 @@ static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; #warning ACPI uses CMPXCHG, i486 and later hardware #endif +static int acpi_mcfg_64bit_base_addr __initdata = FALSE; + /* -------------------------------------------------------------------------- Boot-time Configuration -------------------------------------------------------------------------- */ @@ -158,6 +160,14 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size) struct acpi_mcfg_allocation *pci_mmcfg_config; int pci_mmcfg_config_num; +static int __init acpi_mcfg_oem_check(struct acpi_table_mcfg *mcfg) +{ + if (!strcmp(mcfg->header.oem_id, "SGI")) + acpi_mcfg_64bit_base_addr = TRUE; + + return 0; +} + int __init acpi_parse_mcfg(struct acpi_table_header *header) { struct acpi_table_mcfg *mcfg; @@ -190,8 +200,12 @@ int __init acpi_parse_mcfg(struct acpi_table_header *header) } memcpy(pci_mmcfg_config, &mcfg[1], config_size); + + acpi_mcfg_oem_check(mcfg); + for (i = 0; i < pci_mmcfg_config_num; ++i) { - if (pci_mmcfg_config[i].address > 0xFFFFFFFF) { + if ((pci_mmcfg_config[i].address > 0xFFFFFFFF) && + !acpi_mcfg_64bit_base_addr) { printk(KERN_ERR PREFIX "MMCONFIG not in low 4GB of memory\n"); kfree(pci_mmcfg_config); |