perf pmu-events: Change aggr_mode to be an enum

Rather than use a string to encode aggr_mode, use an enum value.

Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Andrii Nakryiko <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Caleb Biggers <[email protected]>
Cc: Eduard Zingerman <[email protected]>
Cc: Florian Fischer <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jing Zhang <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Perry Taylor <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Suzuki Poulouse <[email protected]>
Cc: Xing Zhengjun <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

3 files changed, 13 insertions, 8 deletions

diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
index 78eef77d8a8d..c8d0dc775e5d 100644
--- a/tools/perf/arch/powerpc/util/header.c
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -45,6 +45,6 @@ int arch_get_runtimeparam(const struct pmu_metric *pm)
 	int count;
 	char path[PATH_MAX] = "/devices/hv_24x7/interface/";
 
-	atoi(pm->aggr_mode) == PerChip ? strcat(path, "sockets") : strcat(path, "coresperchip");
+	strcat(path, pm->aggr_mode == PerChip ? "sockets" : "coresperchip");
 	return sysfs__read_int(path, &count) < 0 ? 1 : count;
 }
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index db8b92de113e..2b08d7c18f4b 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -678,10 +678,13 @@ static void decompress_event(int offset, struct pmu_event *pe)
 {
 \tconst char *p = &big_c_string[offset];
 """)
+  enum_attributes = ['aggr_mode']
   for attr in _json_event_attributes:
-    _args.output_file.write(f"""
-\tpe->{attr} = (*p == '\\0' ? NULL : p);
-""")
+    _args.output_file.write(f'\n\tpe->{attr} = ')
+    if attr in enum_attributes:
+      _args.output_file.write("(*p == '\\0' ? 0 : *p - '0');\n")
+    else:
+      _args.output_file.write("(*p == '\\0' ? NULL : p);\n")
     if attr == _json_event_attributes[-1]:
       continue
     _args.output_file.write('\twhile (*p++);')
@@ -692,9 +695,11 @@ static void decompress_metric(int offset, struct pmu_metric *pm)
 \tconst char *p = &big_c_string[offset];
 """)
   for attr in _json_metric_attributes:
-    _args.output_file.write(f"""
-\tpm->{attr} = (*p == '\\0' ? NULL : p);
-""")
+    _args.output_file.write(f'\n\tpm->{attr} = ')
+    if attr in enum_attributes:
+      _args.output_file.write("(*p == '\\0' ? 0 : *p - '0');\n")
+    else:
+      _args.output_file.write("(*p == '\\0' ? NULL : p);\n")
     if attr == _json_metric_attributes[-1]:
       continue
     _args.output_file.write('\twhile (*p++);')
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index cee8b83792f8..7225efc4e4df 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -31,10 +31,10 @@ struct pmu_metric {
 	const char *metric_expr;
 	const char *unit;
 	const char *compat;
-	const char *aggr_mode;
 	const char *metric_constraint;
 	const char *desc;
 	const char *long_desc;
+	enum aggr_mode_class aggr_mode;
 };
 
 struct pmu_events_table;