From 4bb9c6e19524013e5471463f03414fccd0ced86c Mon Sep 17 00:00:00 2001
From: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Date: Mon, 8 Apr 2024 14:40:22 -0700
Subject: [PATCH] perf vendor events arm64: AmpereOne/AmpereOneX: Mark
 L1D_CACHE_INVAL impacted by errata

L1D_CACHE_INVAL overcounts in certain situations. See AC03_CPU_41 and
AC04_CPU_1 for more details. Mark the event impacted by the errata.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20240408214022.541839-1-ilkka@os.amperecomputing.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json  | 4 +++-
 tools/perf/pmu-events/arch/arm64/ampere/ampereonex/cache.json | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json b/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json
index 7a2b7b200f144..ac75f12e27bf5 100644
--- a/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json
+++ b/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json
@@ -9,7 +9,9 @@
         "ArchStdEvent": "L1D_CACHE_REFILL_RD"
     },
     {
-        "ArchStdEvent": "L1D_CACHE_INVAL"
+        "ArchStdEvent": "L1D_CACHE_INVAL",
+        "Errata": "Errata AC03_CPU_41",
+        "BriefDescription": "L1D cache invalidate. Impacted by errata -"
     },
     {
         "ArchStdEvent": "L1D_TLB_REFILL_RD"
diff --git a/tools/perf/pmu-events/arch/arm64/ampere/ampereonex/cache.json b/tools/perf/pmu-events/arch/arm64/ampere/ampereonex/cache.json
index c50d8e930b05e..f4bfe7083a6ba 100644
--- a/tools/perf/pmu-events/arch/arm64/ampere/ampereonex/cache.json
+++ b/tools/perf/pmu-events/arch/arm64/ampere/ampereonex/cache.json
@@ -9,7 +9,9 @@
         "ArchStdEvent": "L1D_CACHE_REFILL_RD"
     },
     {
-        "ArchStdEvent": "L1D_CACHE_INVAL"
+        "ArchStdEvent": "L1D_CACHE_INVAL",
+        "Errata": "Errata AC04_CPU_1",
+        "BriefDescription": "L1D cache invalidate. Impacted by errata -"
     },
     {
         "ArchStdEvent": "L1D_TLB_REFILL_RD"
-- 
2.30.2