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

From: James Clark
Date: Thu Aug 31 2023 - 11:18:22 EST


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.

Signed-off-by: James Clark <james.clark@xxxxxxx>
---
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(-)

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 152cda84f273..8213e26783a1 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;
+}
--
2.34.1