diff mbox series

[v3,19/35] perf topology: Avoid hybrid list for hybrid topology

Message ID 20230524221831.1741381-20-irogers@google.com (mailing list archive)
State New, archived
Headers show
Series PMU refactoring and improvements | expand

Commit Message

Ian Rogers May 24, 2023, 10:18 p.m. UTC 
Avoid perf_pmu__for_each_hybrid_pmu in hybrid_topology__new by
scanning all PMUs and processing the is_core ones. Add early exit for
non-hybrid.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/cputopo.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/tools/perf/util/cputopo.c b/tools/perf/util/cputopo.c
index ca1d833a0c26..a5c259bd5cc0 100644
--- a/tools/perf/util/cputopo.c
+++ b/tools/perf/util/cputopo.c
@@ -12,7 +12,7 @@ 
 #include "cpumap.h"
 #include "debug.h"
 #include "env.h"
-#include "pmu-hybrid.h"
+#include "pmu.h"
 
 #define PACKAGE_CPUS_FMT \
 	"%s/devices/system/cpu/cpu%d/topology/package_cpus_list"
@@ -469,11 +469,17 @@  static int load_hybrid_node(struct hybrid_topology_node *node,
 
 struct hybrid_topology *hybrid_topology__new(void)
 {
-	struct perf_pmu *pmu;
+	struct perf_pmu *pmu = NULL;
 	struct hybrid_topology *tp = NULL;
-	u32 nr, i = 0;
+	u32 nr = 0, i = 0;
 
-	nr = perf_pmu__hybrid_pmu_num();
+	if (!perf_pmu__has_hybrid())
+		return NULL;
+
+	while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+		if (pmu->is_core)
+			nr++;
+	}
 	if (nr == 0)
 		return NULL;
 
@@ -482,7 +488,10 @@  struct hybrid_topology *hybrid_topology__new(void)
 		return NULL;
 
 	tp->nr = nr;
-	perf_pmu__for_each_hybrid_pmu(pmu) {
+	while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+		if (!pmu->is_core)
+			continue;
+
 		if (load_hybrid_node(&tp->nodes[i], pmu)) {
 			hybrid_topology__delete(tp);
 			return NULL;