diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/ia64/kernel/acpi-processor.c | 6 | ||||
-rw-r--r-- | arch/x86/kernel/acpi/processor.c | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/arch/ia64/kernel/acpi-processor.c b/arch/ia64/kernel/acpi-processor.c index 5a216c019924..cbe6cee5a550 100644 --- a/arch/ia64/kernel/acpi-processor.c +++ b/arch/ia64/kernel/acpi-processor.c | |||
@@ -45,6 +45,12 @@ static void init_intel_pdc(struct acpi_processor *pr) | |||
45 | buf[0] = ACPI_PDC_REVISION_ID; | 45 | buf[0] = ACPI_PDC_REVISION_ID; |
46 | buf[1] = 1; | 46 | buf[1] = 1; |
47 | buf[2] = ACPI_PDC_EST_CAPABILITY_SMP; | 47 | buf[2] = ACPI_PDC_EST_CAPABILITY_SMP; |
48 | /* | ||
49 | * The default of PDC_SMP_T_SWCOORD bit is set for IA64 cpu so | ||
50 | * that OSPM is capable of native ACPI throttling software | ||
51 | * coordination using BIOS supplied _TSD info. | ||
52 | */ | ||
53 | buf[2] |= ACPI_PDC_SMP_T_SWCOORD; | ||
48 | 54 | ||
49 | obj->type = ACPI_TYPE_BUFFER; | 55 | obj->type = ACPI_TYPE_BUFFER; |
50 | obj->buffer.length = 12; | 56 | obj->buffer.length = 12; |
diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c index a25db514c719..324eb0cab19c 100644 --- a/arch/x86/kernel/acpi/processor.c +++ b/arch/x86/kernel/acpi/processor.c | |||
@@ -46,6 +46,12 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c) | |||
46 | buf[1] = 1; | 46 | buf[1] = 1; |
47 | buf[2] = ACPI_PDC_C_CAPABILITY_SMP; | 47 | buf[2] = ACPI_PDC_C_CAPABILITY_SMP; |
48 | 48 | ||
49 | /* | ||
50 | * The default of PDC_SMP_T_SWCOORD bit is set for intel x86 cpu so | ||
51 | * that OSPM is capable of native ACPI throttling software | ||
52 | * coordination using BIOS supplied _TSD info. | ||
53 | */ | ||
54 | buf[2] |= ACPI_PDC_SMP_T_SWCOORD; | ||
49 | if (cpu_has(c, X86_FEATURE_EST)) | 55 | if (cpu_has(c, X86_FEATURE_EST)) |
50 | buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP; | 56 | buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP; |
51 | 57 | ||