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perf pmu: Add PMU kind to simplify differentiating

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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>
This commit is contained in:
Ian Rogers 2025-11-14 14:05:46 -08:00 committed by Namhyung Kim
parent 1a6b0deb2b
commit f0feb21e0a
1 changed files with 34 additions and 0 deletions
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34
tools/perf/util/pmu.h
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@ -37,6 +37,19 @@ struct perf_pmu_caps {
struct list_head list; 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 { enum {
PERF_PMU_TYPE_PE_START = 0, PERF_PMU_TYPE_PE_START = 0,
PERF_PMU_TYPE_PE_END = 0xFFFDFFFF, 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); const char *perf_pmu__name_from_config(struct perf_pmu *pmu, u64 config);
bool perf_pmu__is_fake(const struct perf_pmu *pmu); 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 */ #endif /* __PMU_H */