Messages in this thread Patch in this message | | | Date | Tue, 8 Feb 2022 13:16:27 -0800 | Subject | [PATCH v6 02/12] x86/cpufeatures: add AMD Fam19h Branch Sampling feature | From | Stephane Eranian <> |
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Add a cpu feature for AMD Fam19h Branch Sampling feature as bit 31 of EBX on CPUID leaf function 0x80000008.
Signed-off-by: Stephane Eranian <eranian@google.com> --- arch/x86/include/asm/cpufeatures.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 4cc0ef96152c..a3e895aded02 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -315,6 +315,7 @@ #define X86_FEATURE_VIRT_SSBD (13*32+25) /* Virtualized Speculative Store Bypass Disable */ #define X86_FEATURE_AMD_SSB_NO (13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */ #define X86_FEATURE_CPPC (13*32+27) /* Collaborative Processor Performance Control */ +#define X86_FEATURE_BRS (13*32+31) /* Branch Sampling available */ /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */ #define X86_FEATURE_DTHERM (14*32+ 0) /* Digital Thermal Sensor */ -- 2.35.0.263.gb82422642f-goog
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