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| author | Jin Yao <yao.jin@linux.intel.com> | 2021-04-27 15:01:17 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 10:30:59 -0300 |
| commit | 32705de7d45d0ed989517a63454c2b3e5e5ea267 (patch) | |
| tree | e003484c0c31ab6024af3095f5797cfe5719be95 /tools | |
| parent | eab35953e67b48c763fbb0e0ffc64dd3152361ea (diff) | |
| download | linux-stable-32705de7d45d0ed989517a63454c2b3e5e5ea267.tar.gz linux-stable-32705de7d45d0ed989517a63454c2b3e5e5ea267.tar.bz2 linux-stable-32705de7d45d0ed989517a63454c2b3e5e5ea267.zip | |
perf pmu: Save pmu name
On hybrid platform, one event is available on one pmu
(such as, available on cpu_core or on cpu_atom).
This patch saves the pmu name to the pmu field of struct perf_pmu_alias.
Then next we can know the pmu which the event can be enabled on.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210427070139.25256-5-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/pmu.c | 10 | ||||
| -rw-r--r-- | tools/perf/util/pmu.h | 1 |
2 files changed, 10 insertions, 1 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 8214def7b0f0..44225838eb03 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -283,6 +283,7 @@ void perf_pmu_free_alias(struct perf_pmu_alias *newalias) zfree(&newalias->str); zfree(&newalias->metric_expr); zfree(&newalias->metric_name); + zfree(&newalias->pmu_name); parse_events_terms__purge(&newalias->terms); free(newalias); } @@ -297,6 +298,10 @@ static bool perf_pmu_merge_alias(struct perf_pmu_alias *newalias, list_for_each_entry(a, alist, list) { if (!strcasecmp(newalias->name, a->name)) { + if (newalias->pmu_name && a->pmu_name && + !strcasecmp(newalias->pmu_name, a->pmu_name)) { + continue; + } perf_pmu_update_alias(a, newalias); perf_pmu_free_alias(newalias); return true; @@ -314,7 +319,8 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name, int num; char newval[256]; char *long_desc = NULL, *topic = NULL, *unit = NULL, *perpkg = NULL, - *metric_expr = NULL, *metric_name = NULL, *deprecated = NULL; + *metric_expr = NULL, *metric_name = NULL, *deprecated = NULL, + *pmu_name = NULL; if (pe) { long_desc = (char *)pe->long_desc; @@ -324,6 +330,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name, metric_expr = (char *)pe->metric_expr; metric_name = (char *)pe->metric_name; deprecated = (char *)pe->deprecated; + pmu_name = (char *)pe->pmu; } alias = malloc(sizeof(*alias)); @@ -389,6 +396,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name, } alias->per_pkg = perpkg && sscanf(perpkg, "%d", &num) == 1 && num == 1; alias->str = strdup(newval); + alias->pmu_name = pmu_name ? strdup(pmu_name) : NULL; if (deprecated) alias->deprecated = true; diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 1f1749ba830f..4f100768c264 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -72,6 +72,7 @@ struct perf_pmu_alias { bool deprecated; char *metric_expr; char *metric_name; + char *pmu_name; }; struct perf_pmu *perf_pmu__find(const char *name); |