The functions perf_pmu__is_hybrid and perf_pmu__find_hybrid_pmu
can be used to identify the hybrid platform and return the found
hybrid cpu pmu. All the detected hybrid pmus have been saved in
'perf_pmu__hybrid_pmus' list. So we just need to search this list.
perf_pmu__hybrid_type_to_pmu converts the user specified string
to hybrid pmu name. This is used to support the '--cputype' option
in next patches.
perf_pmu__hybrid_exist checks the existing of hybrid pmu.
Signed-off-by: Jin Yao <yao....@linux.intel.com>
---
tools/perf/util/pmu-hybrid.c | 40 ++++++++++++++++++++++++++++++++++++
tools/perf/util/pmu-hybrid.h | 11 ++++++++++
2 files changed, 51 insertions(+)
diff --git a/tools/perf/util/pmu-hybrid.c b/tools/perf/util/pmu-hybrid.c
index 7316bf46e54b..86ba84d9469c 100644
--- a/tools/perf/util/pmu-hybrid.c
+++ b/tools/perf/util/pmu-hybrid.c
@@ -33,3 +33,43 @@ bool perf_pmu__hybrid_mounted(const char *name)
snprintf(path, PATH_MAX, CPUS_TEMPLATE_CPU, sysfs, name);
return file_available(path);
}
+
+struct perf_pmu *perf_pmu__find_hybrid_pmu(const char *name)
+{
+ struct perf_pmu *pmu;
+
+ if (!name)
+ return NULL;
+
+ perf_pmu__for_each_hybrid_pmu(pmu) {
+ if (!strcmp(name, pmu->name))
+ return pmu;
+ }
+
+ return NULL;
+}
+
+bool perf_pmu__is_hybrid(const char *name)
+{
+ return perf_pmu__find_hybrid_pmu(name) != NULL;
+}
+
+char *perf_pmu__hybrid_type_to_pmu(const char *type)
+{
+ char *pmu_name = NULL;
+
+ if (asprintf(&pmu_name, "cpu_%s", type) < 0)
+ return NULL;
+
+ if (perf_pmu__is_hybrid(pmu_name))
+ return pmu_name;
+
+ /*
+ * pmu may be not scanned, check the sysfs.
+ */
+ if (perf_pmu__hybrid_mounted(pmu_name))
+ return pmu_name;
+
+ free(pmu_name);
+ return NULL;
+}
diff --git a/tools/perf/util/pmu-hybrid.h b/tools/perf/util/pmu-hybrid.h
index 35bed3714438..7fb2246e939a 100644
--- a/tools/perf/util/pmu-hybrid.h
+++ b/tools/perf/util/pmu-hybrid.h
@@ -15,4 +15,15 @@ extern struct list_head perf_pmu__hybrid_pmus;
bool perf_pmu__hybrid_mounted(const char *name);
+struct perf_pmu *perf_pmu__find_hybrid_pmu(const char *name);
+
+bool perf_pmu__is_hybrid(const char *name);
+
+char *perf_pmu__hybrid_type_to_pmu(const char *type);
+
+static inline bool perf_pmu__hybrid_exist(void)
+{
+ return !list_empty(&perf_pmu__hybrid_pmus);
+}
+
#endif /* __PMU_HYBRID_H */
--
2.17.1
