-
Sandipan Das authored
X86_FEATURE_PERFCTR_NB and X86_FEATURE_PERFCTR_LLC are derived from CPUID leaf 0x80000001 ECX bits 24 and 28 respectively and denote the availability of DF and L3 counters. When these bits are not set, the corresponding PMUs have no counters and hence, should not be registered. Fixes: 07888daa ("perf/x86/amd/uncore: Move discovery and registration") Signed-off-by: Sandipan Das <sandipan.das@amd.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20240626074404.1044230-1-sandipan.das@amd.com
f997e208