Add the CPUID feature bit and the model-specific registers needed to identify and configure the Intel Hardware Feedback Interface. Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx> Cc: Aubrey Li <aubrey.li@xxxxxxxxxxxxxxx> Cc: Len Brown <len.brown@xxxxxxxxx> Cc: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> Cc: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx> Cc: "Ravi V. Shankar" <ravi.v.shankar@xxxxxxxxx> Acked-by: Borislav Petkov <bp@xxxxxxx> Signed-off-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx> --- Changes since v3: * None Changes since v2: * Replaced subject prefix to be "x86/cpu:". (Boris) Changes since v1: * Renamed X86_FEATURE_INTEL_HFI as X86_FEATURE_HFI. (Boris) --- arch/x86/include/asm/cpufeatures.h | 1 + arch/x86/include/asm/msr-index.h | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index d5b5f2ab87a0..1a31b3ef15f0 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -327,6 +327,7 @@ #define X86_FEATURE_HWP_ACT_WINDOW (14*32+ 9) /* HWP Activity Window */ #define X86_FEATURE_HWP_EPP (14*32+10) /* HWP Energy Perf. Preference */ #define X86_FEATURE_HWP_PKG_REQ (14*32+11) /* HWP Package Level Request */ +#define X86_FEATURE_HFI (14*32+19) /* Hardware Feedback Interface */ /* AMD SVM Feature Identification, CPUID level 0x8000000a (EDX), word 15 */ #define X86_FEATURE_NPT (15*32+ 0) /* Nested Page Table support */ diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index 01e2650b9585..ad958a49b2bb 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -687,12 +687,14 @@ #define PACKAGE_THERM_STATUS_PROCHOT (1 << 0) #define PACKAGE_THERM_STATUS_POWER_LIMIT (1 << 10) +#define PACKAGE_THERM_STATUS_HFI_UPDATED (1 << 26) #define MSR_IA32_PACKAGE_THERM_INTERRUPT 0x000001b2 #define PACKAGE_THERM_INT_HIGH_ENABLE (1 << 0) #define PACKAGE_THERM_INT_LOW_ENABLE (1 << 1) #define PACKAGE_THERM_INT_PLN_ENABLE (1 << 24) +#define PACKAGE_THERM_INT_HFI_ENABLE (1 << 25) /* Thermal Thresholds Support */ #define THERM_INT_THRESHOLD0_ENABLE (1 << 15) @@ -941,4 +943,8 @@ #define MSR_VM_IGNNE 0xc0010115 #define MSR_VM_HSAVE_PA 0xc0010117 +/* Hardware Feedback Interface */ +#define MSR_IA32_HW_FEEDBACK_PTR 0x17d0 +#define MSR_IA32_HW_FEEDBACK_CONFIG 0x17d1 + #endif /* _ASM_X86_MSR_INDEX_H */ -- 2.17.1
