linux-kernel - [PATCH 0/3] perf vendor events amd: Address event errata

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Message-ID: <cover.1746627307.git.sandipan.das@amd.com>
Date: Wed, 7 May 2025 19:58:26 +0530
From: Sandipan Das <sandipan.das@....com>
To: <linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim
	<namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>, "Alexander
 Shishkin" <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>,
	"Kan Liang" <kan.liang@...ux.intel.com>, Stephane Eranian
	<eranian@...gle.com>, Ravi Bangoria <ravi.bangoria@....com>, Ananth Narayan
	<ananth.narayan@....com>, Sandipan Das <sandipan.das@....com>
Subject: [PATCH 0/3] perf vendor events amd: Address event errata

Remove unreliable Zen 5 events and metrics. The following errata from
the Revision Guide for AMD Family 1Ah Models 00h-0Fh Processors have
been addressed.
#1569 PMCx078 Counts Incorrectly in Unpredictable Ways
#1583 PMCx18E May Overcount Instruction Cache Accesses
#1587 PMCx188 May Undercount IBS (Instruction Based Sampling) Fetch Events

The document can be downloaded from
https://bugzilla.kernel.org/attachment.cgi?id=308095

Sandipan Das (3):
  perf vendor events amd: Remove Zen 5 instruction cache events
  perf vendor events amd: Remove Zen 5 TLB flush event
  perf vendor events amd: Remove Zen 5 IBS fetch event

 .../arch/x86/amdzen5/inst-cache.json          | 24 -------------------
 .../arch/x86/amdzen5/load-store.json          |  6 -----
 .../arch/x86/amdzen5/recommended.json         | 13 ----------
 3 files changed, 43 deletions(-)

-- 
2.43.0