From: Srinivas Pandruvada Date: Mon, 24 Jun 2024 16:11:08 +0000 (-0700) Subject: x86/cpufeatures: Add HWP highest perf change feature flag X-Git-Tag: v6.11-rc1~173^2~2^2^2~5 X-Git-Url: https://repo.jachan.dev/linux.git/commitdiff_plain/7ea81936b853 x86/cpufeatures: Add HWP highest perf change feature flag When CPUID[6].EAX[15] is set to 1, this CPU supports notification for HWP (Hardware P-states) highest performance change. Add a feature flag to check if the CPU supports HWP highest performance change. Signed-off-by: Srinivas Pandruvada Link: https://patch.msgid.link/20240624161109.1427640-2-srinivas.pandruvada@linux.intel.com Signed-off-by: Rafael J. Wysocki --- diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 6c128d463a14..0d99515530d3 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -361,6 +361,7 @@ #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_HWP_HIGHEST_PERF_CHANGE (14*32+15) /* "" HWP Highest perf change */ #define X86_FEATURE_HFI (14*32+19) /* Hardware Feedback Interface */ /* AMD SVM Feature Identification, CPUID level 0x8000000a (EDX), word 15 */