As mentioned in Erratum 1544 from the Revision Guide for AMD Family 1Ah Models 00h-0Fh Processors available at the link below, PMCx188 reports incorrect information about valid IBS fetch samples when used with unit mask 0x10 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/inst-cache.json | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/tools/perf/pmu-events/arch/x86/amdzen5/inst-cache.json b/tools/perf/pmu-events/arch/x86/amdzen5/inst-cache.json index 4fd5e2c5432f..3b61cf8a04da 100644 --- a/tools/perf/pmu-events/arch/x86/amdzen5/inst-cache.json +++ b/tools/perf/pmu-events/arch/x86/amdzen5/inst-cache.json @@ -27,12 +27,6 @@ "BriefDescription": "Fetches discarded after being tagged by Fetch IBS due to IBS filtering.", "UMask": "0x08" }, - { - "EventName": "ic_fetch_ibs_events.sample_valid", - "EventCode": "0x188", - "BriefDescription": "Fetches tagged by Fetch IBS that result in a valid sample and an IBS interrupt.", - "UMask": "0x10" - }, { "EventName": "op_cache_hit_miss.op_cache_hit", "EventCode": "0x28f",