| Message ID | 20240624161109.1427640-2-srinivas.pandruvada@linux.intel.com |
|---|---|
| State | Accepted |
| Commit | 7ea81936b85317aee8a73cd35d7f9cd6ce654dee |
| Headers | show |
| Series | [v2,1/2] x86/cpufeatures: Add HWP highest perf change feature flag | expand |
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 3c7434329661..4cf929c457bb 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 */
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 <srinivas.pandruvada@linux.intel.com> --- v2: - Prevent display in /proc/cpuinfo flags as suggested by Borris arch/x86/include/asm/cpufeatures.h | 1 + 1 file changed, 1 insertion(+)