diff options
| author | Jing Zhang <renyu.zj@linux.alibaba.com> | 2023-09-27 13:59:45 +0800 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2023-09-27 21:01:09 -0700 |
| commit | 2879ff36f5ed80deec5f9d82a7a4107f2347630e (patch) | |
| tree | f163a114da0be18af3c420d7ce3a2d36eb766581 /tools/perf/util/pmu.h | |
| parent | 0e501a65d35bf72414379fed0e31a0b6b81ab57d (diff) | |
perf pmu: "Compat" supports regular expression matching identifiers
The jevent "Compat" is used for uncore PMU alias or metric definitions.
The same PMU driver has different PMU identifiers due to different
hardware versions and types, but they may have some common PMU event.
Since a Compat value can only match one identifier, when adding the
same event alias to PMUs with different identifiers, each identifier
needs to be defined once, which is not streamlined enough.
So let "Compat" support using regular expression to match identifiers
for uncore PMU alias. For example, if the "Compat" value is set to
"43401|43c01", it would be able to match PMU identifiers such as "43401"
or "43c01", which correspond to CMN600_r0p0 or CMN700_r0p0.
Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Shuai Xue <xueshuai@linux.alibaba.com>
Cc: Zhuo Song <zhuo.song@linux.alibaba.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/1695794391-34817-2-git-send-email-renyu.zj@linux.alibaba.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/util/pmu.h')
| -rw-r--r-- | tools/perf/util/pmu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 04b317b17d66..a682c6bc0fce 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -239,6 +239,7 @@ void pmu_add_cpu_aliases_table(struct perf_pmu *pmu, char *perf_pmu__getcpuid(struct perf_pmu *pmu); const struct pmu_metrics_table *pmu_metrics_table__find(void); +bool pmu_uncore_identifier_match(const char *compat, const char *id); int perf_pmu__convert_scale(const char *scale, char **end, double *sval); |