perf list: Display hybrid PMU events with cpu type

Add a new option '--cputype' to 'perf list' to display core-only PMU
events or atom-only PMU events.

Each hybrid PMU event has been assigned with a PMU name, this patch
compares the PMU name before listing the result.

For example:

  perf list --cputype atom
  ...
  cache:
    core_reject_l2q.any
         [Counts the number of request that were not accepted into the L2Q because the L2Q is FULL. Unit: cpu_atom]
  ...

The "Unit: cpu_atom" is displayed in the brief description section
to indicate this is an atom event.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210903025239.22754-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

6 files changed, 39 insertions, 12 deletions

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index c34a3683e719..4917e9704765 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -11,6 +11,7 @@
 #include "evsel.h"
 #include "strbuf.h"
 #include "pmu.h"
+#include "pmu-hybrid.h"
 #include "expr.h"
 #include "rblist.h"
 #include <string.h>
@@ -535,7 +536,7 @@ static int metricgroup__print_sys_event_iter(const struct pmu_event *pe, void *d
 }
 
 void metricgroup__print(bool metrics, bool metricgroups, char *filter,
-			bool raw, bool details)
+			bool raw, bool details, const char *pmu_name)
 {
 	const struct pmu_events_map *map = pmu_events_map__find();
 	const struct pmu_event *pe;
@@ -561,6 +562,10 @@ void metricgroup__print(bool metrics, bool metricgroups, char *filter,
 			break;
 		if (!pe->metric_expr)
 			continue;
+		if (pmu_name && perf_pmu__is_hybrid(pe->pmu) &&
+		    strcmp(pmu_name, pe->pmu)) {
+			continue;
+		}
 		if (metricgroup__print_pmu_event(pe, metricgroups, filter,
 						 raw, details, &groups,
 						 metriclist) < 0)
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index 3a51a84f440b..2b42b778d1bf 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -80,7 +80,7 @@ int metricgroup__parse_groups_test(struct evlist *evlist,
 				   struct rblist *metric_events);
 
 void metricgroup__print(bool metrics, bool groups, char *filter,
-			bool raw, bool details);
+			bool raw, bool details, const char *pmu_name);
 bool metricgroup__has_metric(const char *metric);
 int arch_get_runtimeparam(const struct pmu_event *pe __maybe_unused);
 void metricgroup__rblist_exit(struct rblist *metric_events);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 006a7f721549..278199ed788b 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -3089,7 +3089,8 @@ out_enomem:
  * Print the help text for the event symbols:
  */
 void print_events(const char *event_glob, bool name_only, bool quiet_flag,
-			bool long_desc, bool details_flag, bool deprecated)
+			bool long_desc, bool details_flag, bool deprecated,
+			const char *pmu_name)
 {
 	print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
 			    event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
@@ -3101,7 +3102,7 @@ void print_events(const char *event_glob, bool name_only, bool quiet_flag,
 	print_hwcache_events(event_glob, name_only);
 
 	print_pmu_events(event_glob, name_only, quiet_flag, long_desc,
-			details_flag, deprecated);
+			details_flag, deprecated, pmu_name);
 
 	if (event_glob != NULL)
 		return;
@@ -3127,7 +3128,8 @@ void print_events(const char *event_glob, bool name_only, bool quiet_flag,
 
 	print_sdt_events(NULL, NULL, name_only);
 
-	metricgroup__print(true, true, NULL, name_only, details_flag);
+	metricgroup__print(true, true, NULL, name_only, details_flag,
+			   pmu_name);
 
 	print_libpfm_events(name_only, long_desc);
 }
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 07f879e525fe..f60a661a2247 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -221,7 +221,8 @@ void parse_events_evlist_error(struct parse_events_state *parse_state,
 			       int idx, const char *str);
 
 void print_events(const char *event_glob, bool name_only, bool quiet,
-		  bool long_desc, bool details_flag, bool deprecated);
+		  bool long_desc, bool details_flag, bool deprecated,
+		  const char *pmu_name);
 
 struct event_symbol {
 	const char	*symbol;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 9b5039bf909a..f3072c71d132 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1608,6 +1608,7 @@ static int cmp_sevent(const void *a, const void *b)
 {
 	const struct sevent *as = a;
 	const struct sevent *bs = b;
+	int ret;
 
 	/* Put extra events last */
 	if (!!as->desc != !!bs->desc)
@@ -1623,7 +1624,13 @@ static int cmp_sevent(const void *a, const void *b)
 	if (as->is_cpu != bs->is_cpu)
 		return bs->is_cpu - as->is_cpu;
 
-	return strcmp(as->name, bs->name);
+	ret = strcmp(as->name, bs->name);
+	if (!ret) {
+		if (as->pmu && bs->pmu)
+			return strcmp(as->pmu, bs->pmu);
+	}
+
+	return ret;
 }
 
 static void wordwrap(char *s, int start, int max, int corr)
@@ -1653,7 +1660,8 @@ bool is_pmu_core(const char *name)
 }
 
 void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
-			bool long_desc, bool details_flag, bool deprecated)
+			bool long_desc, bool details_flag, bool deprecated,
+			const char *pmu_name)
 {
 	struct perf_pmu *pmu;
 	struct perf_pmu_alias *alias;
@@ -1679,10 +1687,16 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
 	pmu = NULL;
 	j = 0;
 	while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+		if (pmu_name && perf_pmu__is_hybrid(pmu->name) &&
+		    strcmp(pmu_name, pmu->name)) {
+			continue;
+		}
+
 		list_for_each_entry(alias, &pmu->aliases, list) {
 			char *name = alias->desc ? alias->name :
 				format_alias(buf, sizeof(buf), pmu, alias);
-			bool is_cpu = is_pmu_core(pmu->name);
+			bool is_cpu = is_pmu_core(pmu->name) ||
+				      perf_pmu__is_hybrid(pmu->name);
 
 			if (alias->deprecated && !deprecated)
 				continue;
@@ -1730,8 +1744,13 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
 	qsort(aliases, len, sizeof(struct sevent), cmp_sevent);
 	for (j = 0; j < len; j++) {
 		/* Skip duplicates */
-		if (j > 0 && !strcmp(aliases[j].name, aliases[j - 1].name))
-			continue;
+		if (j > 0 && !strcmp(aliases[j].name, aliases[j - 1].name)) {
+			if (!aliases[j].pmu || !aliases[j - 1].pmu ||
+			    !strcmp(aliases[j].pmu, aliases[j - 1].pmu)) {
+				continue;
+			}
+		}
+
 		if (name_only) {
 			printf("%s ", aliases[j].name);
 			continue;
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index f9743eab07b6..15bbec3a9959 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -111,7 +111,7 @@ struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
 bool is_pmu_core(const char *name);
 void print_pmu_events(const char *event_glob, bool name_only, bool quiet,
 		      bool long_desc, bool details_flag,
-		      bool deprecated);
+		      bool deprecated, const char *pmu_name);
 bool pmu_have_event(const char *pname, const char *name);
 
 int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, ...) __scanf(3, 4);