[v2,5/7] perf pmu: Move pmu__find_core_pmu() to pmus.c

Commit Message

James Clark Sept. 4, 2023, 9:50 a.m. UTC

pmu__find_core_pmu() more logically belongs in pmus.c because it
iterates over all PMUs, so move it to pmus.c

At the same time rename it to perf_pmus__find_core_pmu() to match the
naming convention in this file.

Reviewed-by: Ian Rogers <[e-mail]>
Signed-off-by: James Clark <[e-mail]>
---
 tools/perf/arch/arm64/util/pmu.c |  6 +++---
 tools/perf/tests/expr.c          |  2 +-
 tools/perf/util/expr.c           |  2 +-
 tools/perf/util/pmu.c            | 17 -----------------
 tools/perf/util/pmu.h            |  2 +-
 tools/perf/util/pmus.c           | 18 ++++++++++++++++++
 6 files changed, 24 insertions(+), 23 deletions(-)

Patch

diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c
index 615084eb88d8..3d9330feebd2 100644
--- a/tools/perf/arch/arm64/util/pmu.c
+++ b/tools/perf/arch/arm64/util/pmu.c
@@ -10,7 +10,7 @@ 
 
 const struct pmu_metrics_table *pmu_metrics_table__find(void)
 {
-	struct perf_pmu *pmu = pmu__find_core_pmu();
+	struct perf_pmu *pmu = perf_pmus__find_core_pmu();
 
 	if (pmu)
 		return perf_pmu__find_metrics_table(pmu);
@@ -20,7 +20,7 @@  const struct pmu_metrics_table *pmu_metrics_table__find(void)
 
 const struct pmu_events_table *pmu_events_table__find(void)
 {
-	struct perf_pmu *pmu = pmu__find_core_pmu();
+	struct perf_pmu *pmu = perf_pmus__find_core_pmu();
 
 	if (pmu)
 		return perf_pmu__find_events_table(pmu);
@@ -32,7 +32,7 @@  double perf_pmu__cpu_slots_per_cycle(void)
 {
 	char path[PATH_MAX];
 	unsigned long long slots = 0;
-	struct perf_pmu *pmu = pmu__find_core_pmu();
+	struct perf_pmu *pmu = perf_pmus__find_core_pmu();
 
 	if (pmu) {
 		perf_pmu__pathname_scnprintf(path, sizeof(path),
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c
index 78544092ef0c..e3aa9d4fcf3a 100644
--- a/tools/perf/tests/expr.c
+++ b/tools/perf/tests/expr.c
@@ -76,7 +76,7 @@  static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
 	struct expr_parse_ctx *ctx;
 	bool is_intel = false;
 	char strcmp_cpuid_buf[256];
-	struct perf_pmu *pmu = pmu__find_core_pmu();
+	struct perf_pmu *pmu = perf_pmus__find_core_pmu();
 	char *cpuid = perf_pmu__getcpuid(pmu);
 	char *escaped_cpuid1, *escaped_cpuid2;
 
diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index 4488f306de78..7be23b3ac082 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -509,7 +509,7 @@  double expr__strcmp_cpuid_str(const struct expr_parse_ctx *ctx __maybe_unused,
 		       bool compute_ids __maybe_unused, const char *test_id)
 {
 	double ret;
-	struct perf_pmu *pmu = pmu__find_core_pmu();
+	struct perf_pmu *pmu = perf_pmus__find_core_pmu();
 	char *cpuid = perf_pmu__getcpuid(pmu);
 
 	if (!cpuid)
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index d85602aa4b9f..0a4080ca7949 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -2049,20 +2049,3 @@  void perf_pmu__delete(struct perf_pmu *pmu)
 	zfree(&pmu->id);
 	free(pmu);
 }
-
-struct perf_pmu *pmu__find_core_pmu(void)
-{
-	struct perf_pmu *pmu = NULL;
-
-	while ((pmu = perf_pmus__scan_core(pmu))) {
-		/*
-		 * The cpumap should cover all CPUs. Otherwise, some CPUs may
-		 * not support some events or have different event IDs.
-		 */
-		if (RC_CHK_ACCESS(pmu->cpus)->nr != cpu__max_cpu().cpu)
-			return NULL;
-
-		return pmu;
-	}
-	return NULL;
-}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 6a4e170c61d6..45079f26abf6 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -264,6 +264,6 @@  int perf_pmu__pathname_fd(int dirfd, const char *pmu_name, const char *filename,
 struct perf_pmu *perf_pmu__lookup(struct list_head *pmus, int dirfd, const char *lookup_name);
 struct perf_pmu *perf_pmu__create_placeholder_core_pmu(struct list_head *core_pmus);
 void perf_pmu__delete(struct perf_pmu *pmu);
-struct perf_pmu *pmu__find_core_pmu(void);
+struct perf_pmu *perf_pmus__find_core_pmu(void);
 
 #endif /* __PMU_H */
diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c
index 6631367c756f..032ce57d2b8e 100644
--- a/tools/perf/util/pmus.c
+++ b/tools/perf/util/pmus.c
@@ -10,6 +10,7 @@ 
 #include <pthread.h>
 #include <string.h>
 #include <unistd.h>
+#include "cpumap.h"
 #include "debug.h"
 #include "evsel.h"
 #include "pmus.h"
@@ -592,3 +593,20 @@  struct perf_pmu *evsel__find_pmu(const struct evsel *evsel)
 	}
 	return pmu;
 }
+
+struct perf_pmu *perf_pmus__find_core_pmu(void)
+{
+	struct perf_pmu *pmu = NULL;
+
+	while ((pmu = perf_pmus__scan_core(pmu))) {
+		/*
+		 * The cpumap should cover all CPUs. Otherwise, some CPUs may
+		 * not support some events or have different event IDs.
+		 */
+		if (RC_CHK_ACCESS(pmu->cpus)->nr != cpu__max_cpu().cpu)
+			return NULL;
+
+		return pmu;
+	}
+	return NULL;
+}