perf evsel: Remove use_uncore_alias

This flag used to be used when regrouping uncore events in particular
due to wildcard matches. This is now handled by sorting evlist and so
the flag is redundant.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.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: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230312021543.3060328-2-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/evsel.c

@@ -458,7 +458,6 @@ struct evsel *evsel__clone(struct evsel *orig)
 	evsel->per_pkg = orig->per_pkg;
 	evsel->percore = orig->percore;
 	evsel->precise_max = orig->precise_max;
-	evsel->use_uncore_alias = orig->use_uncore_alias;
 	evsel->is_libpfm_event = orig->is_libpfm_event;
 
 	evsel->exclude_GH = orig->exclude_GH;

tools/perf/util/evsel.h

@@ -89,7 +89,6 @@ struct evsel {
 		bool			per_pkg;
 		bool			percore;
 		bool			precise_max;
-		bool			use_uncore_alias;
 		bool			is_libpfm_event;
 		bool			auto_merge_stats;
 		bool			collect_stat;

tools/perf/util/parse-events.c

@@ -1445,15 +1445,13 @@ static int parse_events__inside_hybrid_pmu(struct parse_events_state *parse_stat
 int parse_events_add_pmu(struct parse_events_state *parse_state,
 			 struct list_head *list, char *name,
 			 struct list_head *head_config,
-			 bool auto_merge_stats,
-			 bool use_alias)
+			 bool auto_merge_stats)
 {
 	struct perf_event_attr attr;
 	struct perf_pmu_info info;
 	struct perf_pmu *pmu;
 	struct evsel *evsel;
 	struct parse_events_error *err = parse_state->error;
-	bool use_uncore_alias;
 	LIST_HEAD(config_terms);
 
 	pmu = parse_state->fake_pmu ?: perf_pmu__find(name);
@@ -1488,8 +1486,6 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
 		memset(&attr, 0, sizeof(attr));
 	}
 
-	use_uncore_alias = (pmu->is_uncore && use_alias);
-
 	if (!head_config) {
 		attr.type = pmu->type;
 		evsel = __add_event(list, &parse_state->idx, &attr,
@@ -1499,7 +1495,6 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
 				    /*cpu_list=*/NULL);
 		if (evsel) {
 			evsel->pmu_name = name ? strdup(name) : NULL;
-			evsel->use_uncore_alias = use_uncore_alias;
 			return 0;
 		} else {
 			return -ENOMEM;
@@ -1560,7 +1555,6 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
 		evsel->use_config_name = true;
 
 	evsel->pmu_name = name ? strdup(name) : NULL;
-	evsel->use_uncore_alias = use_uncore_alias;
 	evsel->percore = config_term_percore(&evsel->config_terms);
 
 	if (parse_state->fake_pmu)
@@ -1622,7 +1616,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 				parse_events_copy_term_list(head, &orig_head);
 				if (!parse_events_add_pmu(parse_state, list,
 							  pmu->name, orig_head,
-							  true, true)) {
+							  /*auto_merge_stats=*/true)) {
 					pr_debug("%s -> %s/%s/\n", str,
 						 pmu->name, alias->str);
 					ok++;
@@ -1634,7 +1628,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 
 	if (parse_state->fake_pmu) {
 		if (!parse_events_add_pmu(parse_state, list, str, head,
-					  true, true)) {
+					  /*auto_merge_stats=*/true)) {
 			pr_debug("%s -> %s/%s/\n", str, "fake_pmu", str);
 			ok++;
 		}

tools/perf/util/parse-events.h

@@ -183,8 +183,7 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx,
 int parse_events_add_pmu(struct parse_events_state *parse_state,
 			 struct list_head *list, char *name,
 			 struct list_head *head_config,
-			 bool auto_merge_stats,
-			 bool use_alias);
+			 bool auto_merge_stats);
 
 struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
 				      const char *name, const char *metric_id,

tools/perf/util/parse-events.y

@@ -313,7 +313,7 @@ event_pmu_name opt_pmu_config
 	list = alloc_list();
 	if (!list)
 		CLEANUP_YYABORT;
-	if (parse_events_add_pmu(_parse_state, list, $1, $2, false, false)) {
+	if (parse_events_add_pmu(_parse_state, list, $1, $2, /*auto_merge_stats=*/false)) {
 		struct perf_pmu *pmu = NULL;
 		int ok = 0;
 
@@ -330,8 +330,10 @@ event_pmu_name opt_pmu_config
 			    !perf_pmu__match(pattern, pmu->alias_name, $1)) {
 				if (parse_events_copy_term_list(orig_terms, &terms))
 					CLEANUP_YYABORT;
-				if (!parse_events_add_pmu(_parse_state, list, pmu->name, terms, true, false))
+				if (!parse_events_add_pmu(_parse_state, list, pmu->name, terms,
+							  /*auto_merge_stats=*/true)) {
 					ok++;
+				}
 				parse_events_terms__delete(terms);
 			}
 		}
@@ -407,7 +409,8 @@ PE_PMU_EVENT_FAKE sep_dc
 	if (!list)
 		YYABORT;
 
-	err = parse_events_add_pmu(_parse_state, list, $1, NULL, false, false);
+	err = parse_events_add_pmu(_parse_state, list, $1, /*head_config=*/NULL,
+				   /*auto_merge_stats=*/false);
 	free($1);
 	if (err < 0) {
 		free(list);
@@ -425,7 +428,7 @@ PE_PMU_EVENT_FAKE opt_pmu_config
 	if (!list)
 		YYABORT;
 
-	err = parse_events_add_pmu(_parse_state, list, $1, $2, false, false);
+	err = parse_events_add_pmu(_parse_state, list, $1, $2, /*auto_merge_stats=*/false);
 	free($1);
 	parse_events_terms__delete($2);
 	if (err < 0) {