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| author | Len Brown <len.brown@intel.com> | 2009-04-05 01:51:51 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-04-05 01:51:51 -0400 |
| commit | 33526a53600ac887d100e3c9b4be3637ac8ae3a5 (patch) | |
| tree | 646cb10e5f02bbbd913eafe9dbc1cfa80166f20e /arch/x86/mm/srat_64.c | |
| parent | 47ae106d3f37e1fd715975eaf8130e20e171cf52 (diff) | |
| parent | 786c221a37d3931189d9c9421f63dec92f4d698b (diff) | |
| download | linux-33526a53600ac887d100e3c9b4be3637ac8ae3a5.tar.bz2 | |
Merge branch 'x2apic' into release
Diffstat (limited to 'arch/x86/mm/srat_64.c')
| -rw-r--r-- | arch/x86/mm/srat_64.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c index 09737c8af074..13d56f5b1349 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -115,6 +115,36 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit) reserve_early(phys, phys + length, "ACPI SLIT"); } +/* Callback for Proximity Domain -> x2APIC mapping */ +void __init +acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa) +{ + int pxm, node; + int apic_id; + + if (srat_disabled()) + return; + if (pa->header.length < sizeof(struct acpi_srat_x2apic_cpu_affinity)) { + bad_srat(); + return; + } + if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0) + return; + pxm = pa->proximity_domain; + node = setup_node(pxm); + if (node < 0) { + printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm); + bad_srat(); + return; + } + + apic_id = pa->apic_id; + apicid_to_node[apic_id] = node; + acpi_numa = 1; + printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n", + pxm, apic_id, node); +} + /* Callback for Proximity Domain -> LAPIC mapping */ void __init acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) |