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-rw-r--r--arch/ia64/kernel/acpi-processor.c6
-rw-r--r--arch/x86/kernel/acpi/processor.c6
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