diff options
| author | Ilkka Koskinen <ilkka@os.amperecomputing.com> | 2025-03-13 20:15:58 +0000 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-03-20 22:58:57 -0700 |
| commit | c0b60ce4615a4392338d833d59040f5fe2857d2c (patch) | |
| tree | 955d4ef642890f006426c2c591c4c84e575826d1 | |
| parent | 7b172b92c1aa4ef97977bf44f0d317c052fa6397 (diff) | |
perf vendor events arm64: AmpereOne/AmpereOneX: Mark LD_RETIRED impacted by errata
Atomic instructions are both memory-reading and memory-writing
instructions and so should be counted by both LD_RETIRED and ST_RETIRED
performance monitoring events. However LD_RETIRED does not count atomic
instructions.
Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250313201559.11332-2-ilkka@os.amperecomputing.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
| -rw-r--r-- | tools/perf/pmu-events/arch/arm64/ampere/ampereone/memory.json | 4 | ||||
| -rw-r--r-- | tools/perf/pmu-events/arch/arm64/ampere/ampereonex/memory.json | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/tools/perf/pmu-events/arch/arm64/ampere/ampereone/memory.json b/tools/perf/pmu-events/arch/arm64/ampere/ampereone/memory.json index 0711782bfa6b..13382d29b25f 100644 --- a/tools/perf/pmu-events/arch/arm64/ampere/ampereone/memory.json +++ b/tools/perf/pmu-events/arch/arm64/ampere/ampereone/memory.json @@ -1,6 +1,8 @@ [ { - "ArchStdEvent": "LD_RETIRED" + "ArchStdEvent": "LD_RETIRED", + "Errata": "Errata AC03_CPU_52", + "BriefDescription": "Instruction architecturally executed, condition code check pass, load. Impacted by errata -" }, { "ArchStdEvent": "MEM_ACCESS_RD" diff --git a/tools/perf/pmu-events/arch/arm64/ampere/ampereonex/memory.json b/tools/perf/pmu-events/arch/arm64/ampere/ampereonex/memory.json index a211d94aacde..6c06bc928415 100644 --- a/tools/perf/pmu-events/arch/arm64/ampere/ampereonex/memory.json +++ b/tools/perf/pmu-events/arch/arm64/ampere/ampereonex/memory.json @@ -1,6 +1,8 @@ [ { - "ArchStdEvent": "LD_RETIRED" + "ArchStdEvent": "LD_RETIRED", + "Errata": "Errata AC04_CPU_21", + "BriefDescription": "Instruction architecturally executed, condition code check pass, load. Impacted by errata -" }, { "ArchStdEvent": "MEM_ACCESS_RD" |