Enable P-state software coordination via _PDC

http://bugzilla.kernel.org/show_bug.cgi?id=5737Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

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;

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;

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)