As mentioned in Erratum 1569 from the Revision Guide for AMD Family 1Ah Models 00h-0Fh Processors available at the link below, PMCx078 reports incorrect information about TLB flushes on Zen 5 processors. Remove affected events and metrics.
Link: https://bugzilla.kernel.org/attachment.cgi?id=308095 Fixes: 45c072f2537a ("perf vendor events amd: Add Zen 5 core events") Signed-off-by: Sandipan Das sandipan.das@amd.com Cc: stable@vger.kernel.org --- tools/perf/pmu-events/arch/x86/amdzen5/load-store.json | 6 ------ tools/perf/pmu-events/arch/x86/amdzen5/recommended.json | 7 ------- 2 files changed, 13 deletions(-)
diff --git a/tools/perf/pmu-events/arch/x86/amdzen5/load-store.json b/tools/perf/pmu-events/arch/x86/amdzen5/load-store.json index ff6627a77805..f23a92bf55ac 100644 --- a/tools/perf/pmu-events/arch/x86/amdzen5/load-store.json +++ b/tools/perf/pmu-events/arch/x86/amdzen5/load-store.json @@ -502,12 +502,6 @@ "EventCode": "0x76", "BriefDescription": "Core cycles not in halt." }, - { - "EventName": "ls_tlb_flush.all", - "EventCode": "0x78", - "BriefDescription": "All TLB Flushes.", - "UMask": "0xff" - }, { "EventName": "ls_not_halted_p0_cyc.p0_freq_cyc", "EventCode": "0x120", diff --git a/tools/perf/pmu-events/arch/x86/amdzen5/recommended.json b/tools/perf/pmu-events/arch/x86/amdzen5/recommended.json index 863f4b5dfc14..6b32308b1c3a 100644 --- a/tools/perf/pmu-events/arch/x86/amdzen5/recommended.json +++ b/tools/perf/pmu-events/arch/x86/amdzen5/recommended.json @@ -241,13 +241,6 @@ "MetricGroup": "tlb", "ScaleUnit": "1e3per_1k_instr" }, - { - "MetricName": "all_tlbs_flushed_pti", - "BriefDescription": "All TLBs flushed per thousand instructions.", - "MetricExpr": "ls_tlb_flush.all / instructions", - "MetricGroup": "tlb", - "ScaleUnit": "1e3per_1k_instr" - }, { "MetricName": "macro_ops_dispatched", "BriefDescription": "Macro-ops dispatched.",