[v1,6/7] perf jevents: Add map_for_cpu

Commit Message

Ian Rogers Nov. 7, 2024, 7:15 a.m. UTC

The PMU is no longer part of the map finding process and for metrics
doesn't make sense as they lack a PMU.

Signed-off-by: Ian Rogers <[e-mail]>
---
 tools/perf/pmu-events/empty-pmu-events.c | 20 +++++++++++++-------
 tools/perf/pmu-events/jevents.py         | 20 +++++++++++++-------
 2 files changed, 26 insertions(+), 14 deletions(-)

Patch

diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index 1f7f39a89ffd..2151e8a43f16 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -503,11 +503,11 @@  int pmu_metrics_table__for_each_metric(const struct pmu_metrics_table *table,
         return 0;
 }
 
-static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
+static const struct pmu_events_map *map_for_cpu(struct perf_cpu cpu)
 {
         static struct {
                 const struct pmu_events_map *map;
-                struct perf_pmu *pmu;
+                struct perf_cpu cpu;
         } last_result;
         static struct {
                 const struct pmu_events_map *map;
@@ -515,15 +515,12 @@  static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
         } last_map_search;
         static bool has_last_result, has_last_map_search;
         const struct pmu_events_map *map = NULL;
-        struct perf_cpu cpu = {-1};
         char *cpuid = NULL;
         size_t i;
 
-        if (has_last_result && last_result.pmu == pmu)
+        if (has_last_result && last_result.cpu.cpu == cpu.cpu)
                 return last_result.map;
 
-        if (pmu)
-                cpu = perf_cpu_map__min(pmu->cpus);
         cpuid = get_cpuid_allow_env_override(cpu);
 
         /*
@@ -555,12 +552,21 @@  static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
                has_last_map_search = true;
         }
 out_update_last_result:
-        last_result.pmu = pmu;
+        last_result.cpu = cpu;
         last_result.map = map;
         has_last_result = true;
         return map;
 }
 
+static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
+{
+        struct perf_cpu cpu = {-1};
+
+        if (pmu)
+                cpu = perf_cpu_map__min(pmu->cpus);
+        return map_for_cpu(cpu);
+}
+
 const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
 {
         const struct pmu_events_map *map = map_for_pmu(pmu);
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 17cd1b1c6b66..6d6780ca0889 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -1019,11 +1019,11 @@  int pmu_metrics_table__for_each_metric(const struct pmu_metrics_table *table,
         return 0;
 }
 
-static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
+static const struct pmu_events_map *map_for_cpu(struct perf_cpu cpu)
 {
         static struct {
                 const struct pmu_events_map *map;
-                struct perf_pmu *pmu;
+                struct perf_cpu cpu;
         } last_result;
         static struct {
                 const struct pmu_events_map *map;
@@ -1031,15 +1031,12 @@  static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
         } last_map_search;
         static bool has_last_result, has_last_map_search;
         const struct pmu_events_map *map = NULL;
-        struct perf_cpu cpu = {-1};
         char *cpuid = NULL;
         size_t i;
 
-        if (has_last_result && last_result.pmu == pmu)
+        if (has_last_result && last_result.cpu.cpu == cpu.cpu)
                 return last_result.map;
 
-        if (pmu)
-                cpu = perf_cpu_map__min(pmu->cpus);
         cpuid = get_cpuid_allow_env_override(cpu);
 
         /*
@@ -1071,12 +1068,21 @@  static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
                has_last_map_search = true;
         }
 out_update_last_result:
-        last_result.pmu = pmu;
+        last_result.cpu = cpu;
         last_result.map = map;
         has_last_result = true;
         return map;
 }
 
+static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
+{
+        struct perf_cpu cpu = {-1};
+
+        if (pmu)
+                cpu = perf_cpu_map__min(pmu->cpus);
+        return map_for_cpu(cpu);
+}
+
 const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
 {
         const struct pmu_events_map *map = map_for_pmu(pmu);