diff mbox

x86: Look for IA32_ENERGY_PERF_BIAS support - v3

Message ID alpine.LFD.2.00.1006032310160.6669@localhost.localdomain (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Len Brown June 4, 2010, 3:22 a.m. UTC 
None
diff mbox

Patch

Index: linus/arch/x86/include/asm/cpufeature.h
===================================================================
--- linus.orig/arch/x86/include/asm/cpufeature.h
+++ linus/arch/x86/include/asm/cpufeature.h
@@ -162,6 +162,7 @@ 
 #define X86_FEATURE_IDA		(7*32+ 0) /* Intel Dynamic Acceleration */
 #define X86_FEATURE_ARAT	(7*32+ 1) /* Always Running APIC Timer */
 #define X86_FEATURE_CPB		(7*32+ 2) /* AMD Core Performance Boost */
+#define X86_FEATURE_EPB		(7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
 
 /* Virtualization flags: Linux defined */
 #define X86_FEATURE_TPR_SHADOW  (8*32+ 0) /* Intel TPR Shadow */
Index: linus/arch/x86/include/asm/msr-index.h
===================================================================
--- linus.orig/arch/x86/include/asm/msr-index.h
+++ linus/arch/x86/include/asm/msr-index.h
@@ -238,6 +238,8 @@ 
 
 #define MSR_IA32_TEMPERATURE_TARGET	0x000001a2
 
+#define MSR_IA32_ENERGY_PERF_BIAS	0x000001b0
+
 /* MISC_ENABLE bits: architectural */
 #define MSR_IA32_MISC_ENABLE_FAST_STRING	(1ULL << 0)
 #define MSR_IA32_MISC_ENABLE_TCC		(1ULL << 1)
Index: linus/arch/x86/kernel/cpu/addon_cpuid_features.c
===================================================================
--- linus.orig/arch/x86/kernel/cpu/addon_cpuid_features.c
+++ linus/arch/x86/kernel/cpu/addon_cpuid_features.c
@@ -33,6 +33,7 @@  void __cpuinit init_scattered_cpuid_feat
 		{ X86_FEATURE_IDA,   		CR_EAX, 1, 0x00000006 },
 		{ X86_FEATURE_ARAT,  		CR_EAX, 2, 0x00000006 },
 		{ X86_FEATURE_APERFMPERF,	CR_ECX, 0, 0x00000006 },
+		{ X86_FEATURE_EPB,		CR_ECX, 3, 0x00000006 },
 		{ X86_FEATURE_CPB,   		CR_EDX, 9, 0x80000007 },
 		{ X86_FEATURE_NPT,   		CR_EDX, 0, 0x8000000a },
 		{ X86_FEATURE_LBRV,  		CR_EDX, 1, 0x8000000a },