From: John Garry john.garry@huawei.com
mainline inclusion from mainline-v5.11-rc1 commit be335ec28efa category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I63VF5 CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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Currently adding metrics for core- or uncore-based events matched by CPUID is supported.
Extend this for system events.
Signed-off-by: John Garry john.garry@huawei.com Acked-by: Kajol Jain kjain@linux.ibm.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Andi Kleen ak@linux.intel.com Cc: Ian Rogers irogers@google.com Cc: Jiri Olsa jolsa@redhat.com Cc: Joakim Zhang qiangqing.zhang@nxp.com Cc: Kan Liang kan.liang@linux.intel.com Cc: Kim Phillips kim.phillips@amd.com Cc: Leo Yan leo.yan@linaro.org Cc: Mark Rutland mark.rutland@arm.com Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Shaokun Zhang zhangshaokun@hisilicon.com Cc: Will Deacon will@kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linuxarm@huawei.com Link: http://lore.kernel.org/lkml/1607080216-36968-10-git-send-email-john.garry@hu... [ Reorder 'struct metricgroup_add_iter_data' field to avoid alignment holes ] Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Junhao He hejunhao3@huawei.com --- tools/perf/util/metricgroup.c | 67 +++++++++++++++++++++++++++++++---- 1 file changed, 60 insertions(+), 7 deletions(-)
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 5df4cf4711da..4c1321bfabd8 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -415,6 +415,12 @@ static bool match_metric(const char *n, const char *list) return false; }
+static bool match_pe_metric(struct pmu_event *pe, const char *metric) +{ + return match_metric(pe->metric_group, metric) || + match_metric(pe->metric_name, metric); +} + struct mep { struct rb_node nd; const char *name; @@ -757,6 +763,16 @@ int __weak arch_get_runtimeparam(struct pmu_event *pe __maybe_unused) return 1; }
+struct metricgroup_add_iter_data { + struct list_head *metric_list; + const char *metric; + struct metric **m; + struct expr_ids *ids; + int *ret; + bool *has_match; + bool metric_no_group; +}; + static int __add_metric(struct list_head *metric_list, struct pmu_event *pe, bool metric_no_group, @@ -866,10 +882,11 @@ static int __add_metric(struct list_head *metric_list, return 0; }
-#define map_for_each_event(__pe, __idx, __map) \ - for (__idx = 0, __pe = &__map->table[__idx]; \ - __pe->name || __pe->metric_group || __pe->metric_name; \ - __pe = &__map->table[++__idx]) +#define map_for_each_event(__pe, __idx, __map) \ + if (__map) \ + for (__idx = 0, __pe = &__map->table[__idx]; \ + __pe->name || __pe->metric_group || __pe->metric_name; \ + __pe = &__map->table[++__idx])
#define map_for_each_metric(__pe, __idx, __map, __metric) \ map_for_each_event(__pe, __idx, __map) \ @@ -1038,6 +1055,29 @@ static int add_metric(struct list_head *metric_list, return ret; }
+static int metricgroup__add_metric_sys_event_iter(struct pmu_event *pe, + void *data) +{ + struct metricgroup_add_iter_data *d = data; + int ret; + + if (!match_pe_metric(pe, d->metric)) + return 0; + + ret = add_metric(d->metric_list, pe, d->metric_no_group, d->m, NULL, d->ids); + if (ret) + return ret; + + ret = resolve_metric(d->metric_no_group, + d->metric_list, NULL, d->ids); + if (ret) + return ret; + + *(d->has_match) = true; + + return *d->ret; +} + static int metricgroup__add_metric(const char *metric, bool metric_no_group, struct strbuf *events, struct list_head *metric_list, @@ -1068,6 +1108,22 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group, goto out; }
+ { + struct metricgroup_iter_data data = { + .fn = metricgroup__add_metric_sys_event_iter, + .data = (void *) &(struct metricgroup_add_iter_data) { + .metric_list = &list, + .metric = metric, + .metric_no_group = metric_no_group, + .m = &m, + .ids = &ids, + .has_match = &has_match, + .ret = &ret, + }, + }; + + pmu_for_each_sys_event(metricgroup__sys_event_iter, &data); + } /* End of pmu events. */ if (!has_match) { ret = -EINVAL; @@ -1194,9 +1250,6 @@ int metricgroup__parse_groups(const struct option *opt, struct evlist *perf_evlist = *(struct evlist **)opt->value; struct pmu_events_map *map = pmu_events_map__find();
- if (!map) - return 0; - return parse_groups(perf_evlist, str, metric_no_group, metric_no_merge, NULL, metric_events, map); }