diff options
Diffstat (limited to 'arch/x86/kernel/genapic_64.c')
| -rw-r--r-- | arch/x86/kernel/genapic_64.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c index 4ae7b6440260..c873f60c74a6 100644 --- a/arch/x86/kernel/genapic_64.c +++ b/arch/x86/kernel/genapic_64.c @@ -33,6 +33,8 @@ EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid); struct genapic __read_mostly *genapic = &apic_flat; +static enum uv_system_type uv_system_type; + /* * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode. */ @@ -64,3 +66,26 @@ void send_IPI_self(int vector) { __send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL); } + +int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) +{ + if (!strcmp(oem_id, "SGI")) { + if (!strcmp(oem_table_id, "UVL")) + uv_system_type = UV_LEGACY_APIC; + else if (!strcmp(oem_table_id, "UVX")) + uv_system_type = UV_X2APIC; + else if (!strcmp(oem_table_id, "UVH")) + uv_system_type = UV_NON_UNIQUE_APIC; + } + return 0; +} + +enum uv_system_type get_uv_system_type(void) +{ + return uv_system_type; +} + +int is_uv_system(void) +{ + return uv_system_type != UV_NONE; +} |
