From: Ian Rogers <irogers@google.com>
Date: Fri, 14 Nov 2025 22:05:46 +0000 (-0800)
Subject: perf pmu: Add PMU kind to simplify differentiating
X-Git-Tag: v6.19-rc1~61^2~76
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0feb21e0a10c50e3a154e9bdf3fbb8a38480251;p=thirdparty%2Flinux.git

perf pmu: Add PMU kind to simplify differentiating

Rather than perf_pmu__is_xxx calls, and a notion of kind so that a
single call can be used.

Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---

diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 1ebcf0242af85..cfcaba3e2e753 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -37,6 +37,19 @@ struct perf_pmu_caps {
 	struct list_head list;
 };
 
+enum pmu_kind {
+	/* A perf event syscall PMU. */
+	PERF_PMU_KIND_PE,
+	/* A perf tool provided DRM PMU. */
+	PERF_PMU_KIND_DRM,
+	/* A perf tool provided HWMON PMU. */
+	PERF_PMU_KIND_HWMON,
+	/* Perf tool provided PMU for tool events like time. */
+	PERF_PMU_KIND_TOOL,
+	/* A testing PMU kind. */
+	PERF_PMU_KIND_FAKE
+};
+
 enum {
 	PERF_PMU_TYPE_PE_START    = 0,
 	PERF_PMU_TYPE_PE_END      = 0xFFFDFFFF,
@@ -306,4 +319,25 @@ void perf_pmu__delete(struct perf_pmu *pmu);
 const char *perf_pmu__name_from_config(struct perf_pmu *pmu, u64 config);
 bool perf_pmu__is_fake(const struct perf_pmu *pmu);
 
+static inline enum pmu_kind perf_pmu__kind(const struct perf_pmu *pmu)
+{
+	__u32 type;
+
+	if (!pmu)
+		return PERF_PMU_KIND_PE;
+
+	type = pmu->type;
+	if (type <= PERF_PMU_TYPE_PE_END)
+		return PERF_PMU_KIND_PE;
+	if (type <= PERF_PMU_TYPE_DRM_END)
+		return PERF_PMU_KIND_DRM;
+	if (type <= PERF_PMU_TYPE_DRM_END)
+		return PERF_PMU_KIND_DRM;
+	if (type <= PERF_PMU_TYPE_HWMON_END)
+		return PERF_PMU_KIND_HWMON;
+	if (type == PERF_PMU_TYPE_TOOL)
+		return PERF_PMU_KIND_TOOL;
+	return PERF_PMU_KIND_FAKE;
+}
+
 #endif /* __PMU_H */