[PATCH 2/8] perf/x86: Introduce is_x86_pmu() helper

[Dapeng Mi]

From: Ian Rogers <irogers@xxxxxxxxxx>

To facilitate the detection of x86 PMU structures in upcoming patches,
the is_x86_pmu() helper is introduced. Additionally, the is_x86_event()
helper has been refactored to utilize is_x86_pmu().

No function changes intended.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
Signed-off-by: Dapeng Mi <dapeng1.mi@xxxxxxxxxxxxxxx>
Reviewed-by: Zide Chen <zide.chen@xxxxxxxxx>
---

Original patch link:
https://lore.kernel.org/all/20260316050838.3624051-1-dapeng1.mi@xxxxxxxxxxxxxxx/

 arch/x86/events/core.c       | 16 ----------------
 arch/x86/events/perf_event.h | 18 +++++++++++++++++-
 2 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 4b9e105309c6..3bd0522afe6d 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -774,22 +774,6 @@ void x86_pmu_enable_all(int added)
 	}
 }
 
-int is_x86_event(struct perf_event *event)
-{
-	/*
-	 * For a non-hybrid platforms, the type of X86 pmu is
-	 * always PERF_TYPE_RAW.
-	 * For a hybrid platform, the PERF_PMU_CAP_EXTENDED_HW_TYPE
-	 * is a unique capability for the X86 PMU.
-	 * Use them to detect a X86 event.
-	 */
-	if (event->pmu->type == PERF_TYPE_RAW ||
-	    event->pmu->capabilities & PERF_PMU_CAP_EXTENDED_HW_TYPE)
-		return true;
-
-	return false;
-}
-
 struct pmu *x86_get_pmu(unsigned int cpu)
 {
 	struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 5902a297daa1..dbb5c8e8a8ea 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -115,7 +115,23 @@ static inline bool is_topdown_event(struct perf_event *event)
 	return is_metric_event(event) || is_slots_event(event);
 }
 
-int is_x86_event(struct perf_event *event);
+static inline bool is_x86_pmu(struct pmu *pmu)
+{
+	/*
+	 * For a non-hybrid platforms, the type of X86 pmu is
+	 * always PERF_TYPE_RAW.
+	 * For a hybrid platform, the PERF_PMU_CAP_EXTENDED_HW_TYPE
+	 * is a unique capability for the X86 PMU.
+	 * Use them to detect a X86 event.
+	 */
+	return pmu->type == PERF_TYPE_RAW ||
+	       pmu->capabilities & PERF_PMU_CAP_EXTENDED_HW_TYPE;
+}
+
+static inline bool is_x86_event(struct perf_event *event)
+{
+	return is_x86_pmu(event->pmu);
+}
 
 static inline bool check_leader_group(struct perf_event *leader, int flags)
 {
-- 
2.34.1