perf evlist: Remove __evlist__add_default

__evlist__add_default adds a cycles event to a typically empty evlist
and was extended for hybrid with evlist__add_default_hybrid, as more
than 1 PMU was necessary. Rather than have dedicated logic for the
cycles event, this change switches to parsing 'cycles:P' which will
handle wildcarding the PMUs appropriately for hybrid.

Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Dmitrii Dolgov <9erthalion6@gmail.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kang Minchul <tegongkang@gmail.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Ming Wang <wangming01@loongson.cn>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230527072210.2900565-14-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 8 insertions, 14 deletions

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 9dfa977193b3..63f8821a5395 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -93,8 +93,15 @@ struct evlist *evlist__new(void)
 struct evlist *evlist__new_default(void)
 {
 	struct evlist *evlist = evlist__new();
+	bool can_profile_kernel;
+	int err;
+
+	if (!evlist)
+		return NULL;
 
-	if (evlist && evlist__add_default(evlist)) {
+	can_profile_kernel = perf_event_paranoid_check(1);
+	err = parse_event(evlist, can_profile_kernel ? "cycles:P" : "cycles:Pu");
+	if (err) {
 		evlist__delete(evlist);
 		evlist = NULL;
 	}
@@ -237,19 +244,6 @@ static void evlist__set_leader(struct evlist *evlist)
 	perf_evlist__set_leader(&evlist->core);
 }
 
-int __evlist__add_default(struct evlist *evlist, bool precise)
-{
-	struct evsel *evsel;
-
-	evsel = evsel__new_cycles(precise, PERF_TYPE_HARDWARE,
-				  PERF_COUNT_HW_CPU_CYCLES);
-	if (evsel == NULL)
-		return -ENOMEM;
-
-	evlist__add(evlist, evsel);
-	return 0;
-}
-
 static struct evsel *evlist__dummy_event(struct evlist *evlist)
 {
 	struct perf_event_attr attr = {