Enable P-state software coordination via _PDC

http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
git-mirror · Feb 9, 2006 · d52bb94 · d52bb94
1 parent c52851b
commit d52bb94
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Showing 3 changed files with 7 additions and 2 deletions.
diff --git a/arch/i386/kernel/acpi/processor.c b/arch/i386/kernel/acpi/processor.c
@@ -47,7 +47,7 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
 	buf[2] = ACPI_PDC_C_CAPABILITY_SMP;
 
 	if (cpu_has(c, X86_FEATURE_EST))
-		buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
+		buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
 
 	obj->type = ACPI_TYPE_BUFFER;
 	obj->buffer.length = 12;

diff --git a/arch/x86_64/kernel/acpi/processor.c b/arch/x86_64/kernel/acpi/processor.c
@@ -44,7 +44,7 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
 
 	buf[0] = ACPI_PDC_REVISION_ID;
 	buf[1] = 1;
-	buf[2] = ACPI_PDC_EST_CAPABILITY_SMP;
+	buf[2] = ACPI_PDC_EST_CAPABILITY_SWSMP;
 
 	obj->type = ACPI_TYPE_BUFFER;
 	obj->buffer.length = 12;

diff --git a/include/acpi/pdc_intel.h b/include/acpi/pdc_intel.h
@@ -18,6 +18,11 @@
 					 ACPI_PDC_C_C1_HALT | \
 					 ACPI_PDC_P_FFH)
 
+#define ACPI_PDC_EST_CAPABILITY_SWSMP	(ACPI_PDC_SMP_C1PT | \
+					 ACPI_PDC_C_C1_HALT | \
+					 ACPI_PDC_SMP_P_SWCOORD | \
+					 ACPI_PDC_P_FFH)
+
 #define ACPI_PDC_C_CAPABILITY_SMP	(ACPI_PDC_SMP_C2C3 | \
 					 ACPI_PDC_SMP_C1PT | \
 					 ACPI_PDC_C_C1_HALT)