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Date: Fri, 12 Aug 2022 16:09:36 -0700
From: Ian Rogers <irogers@...gle.com>
To: John Garry <john.garry@...wei.com>, Will Deacon <will@...nel.org>,
James Clark <james.clark@....com>,
Mike Leach <mike.leach@...aro.org>,
Leo Yan <leo.yan@...aro.org>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Andi Kleen <ak@...ux.intel.com>,
Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
Ravi Bangoria <ravi.bangoria@....com>,
Kan Liang <kan.liang@...ux.intel.com>,
Adrian Hunter <adrian.hunter@...el.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-perf-users@...r.kernel.org
Cc: Stephane Eranian <eranian@...gle.com>,
Ian Rogers <irogers@...gle.com>
Subject: [PATCH v5 01/14] perf jevent: Add an 'all' architecture argument
When 'all' is passed as the architecture generate a mapping table for
all architectures. This simplifies testing. To identify the table for an
architecture add an arch variable to the pmu_events_map.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/pmu-events/empty-pmu-events.c | 2 +
tools/perf/pmu-events/jevents.py | 70 +++++++++++++++---------
tools/perf/pmu-events/pmu-events.h | 1 +
tools/perf/tests/pmu-events.c | 3 +-
4 files changed, 47 insertions(+), 29 deletions(-)
diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index 77e655c6f116..d8cf9283e486 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -110,12 +110,14 @@ static const struct pmu_event pme_test_soc_cpu[] = {
const struct pmu_events_map pmu_events_map[] = {
{
+ .arch = "testarch",
.cpuid = "testcpu",
.version = "v1",
.type = "core",
.table = pme_test_soc_cpu,
},
{
+ .arch = 0,
.cpuid = 0,
.version = 0,
.type = 0,
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index c5c9bb186abd..b49a0dd946b7 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -305,38 +305,45 @@ def process_one_file(parents: Sequence[str], item: os.DirEntry) -> None:
print_events_table_entries(item, get_topic(item.name))
-def print_mapping_table() -> None:
+def print_mapping_table(archs: Sequence[str]) -> None:
"""Read the mapfile and generate the struct from cpuid string to event table."""
- with open(f'{_args.starting_dir}/{_args.arch}/mapfile.csv') as csvfile:
- table = csv.reader(csvfile)
- _args.output_file.write(
- 'const struct pmu_events_map pmu_events_map[] = {\n')
- first = True
- for row in table:
- # Skip the first row or any row beginning with #.
- if not first and len(row) > 0 and not row[0].startswith('#'):
- tblname = file_name_to_table_name([], row[2].replace('/', '_'))
- _args.output_file.write("""{
-\t.cpuid = \"%s\",
-\t.version = \"%s\",
-\t.type = \"%s\",
-\t.table = %s
-},
-""" % (row[0].replace('\\', '\\\\'), row[1], row[3], tblname))
- first = False
-
- _args.output_file.write("""{
+ _args.output_file.write('const struct pmu_events_map pmu_events_map[] = {\n')
+ for arch in archs:
+ if arch == 'test':
+ _args.output_file.write("""{
+\t.arch = "testarch",
\t.cpuid = "testcpu",
\t.version = "v1",
\t.type = "core",
\t.table = pme_test_soc_cpu,
},
-{
+""")
+ else:
+ with open(f'{_args.starting_dir}/{arch}/mapfile.csv') as csvfile:
+ table = csv.reader(csvfile)
+ first = True
+ for row in table:
+ # Skip the first row or any row beginning with #.
+ if not first and len(row) > 0 and not row[0].startswith('#'):
+ tblname = file_name_to_table_name([], row[2].replace('/', '_'))
+ cpuid = row[0].replace('\\', '\\\\')
+ _args.output_file.write(f"""{{
+\t.arch = "{arch}",
+\t.cpuid = "{cpuid}",
+\t.version = "{row[1]}",
+\t.type = "{row[3]}",
+\t.table = {tblname}
+}},
+""")
+ first = False
+
+ _args.output_file.write("""{
+\t.arch = 0,
\t.cpuid = 0,
\t.version = 0,
\t.type = 0,
\t.table = 0,
-},
+}
};
""")
@@ -387,15 +394,24 @@ def main() -> None:
_args = ap.parse_args()
_args.output_file.write("#include \"pmu-events/pmu-events.h\"\n")
- for path in [_args.arch, 'test']:
- arch_path = f'{_args.starting_dir}/{path}'
- if not os.path.isdir(arch_path):
- raise IOError(f'Missing architecture directory in \'{arch_path}\'')
+ archs = []
+ for item in os.scandir(_args.starting_dir):
+ if not item.is_dir():
+ continue
+ if item.name == _args.arch or _args.arch == 'all' or item.name == 'test':
+ archs.append(item.name)
+
+ if len(archs) < 2:
+ raise IOError(f'Missing architecture directory \'{_args.arch}\'')
+
+ archs.sort()
+ for arch in archs:
+ arch_path = f'{_args.starting_dir}/{arch}'
preprocess_arch_std_files(arch_path)
ftw(arch_path, [], process_one_file)
print_events_table_suffix()
- print_mapping_table()
+ print_mapping_table(archs)
print_system_mapping_table()
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index 6efe73976440..7a360792635f 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -38,6 +38,7 @@ struct pmu_event {
* The cpuid can contain any character other than the comma.
*/
struct pmu_events_map {
+ const char *arch;
const char *cpuid;
const char *version;
const char *type; /* core, uncore etc */
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 263cbb67c861..82192f1a7bf7 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -864,8 +864,7 @@ static void expr_failure(const char *msg,
const struct pmu_events_map *map,
const struct pmu_event *pe)
{
- pr_debug("%s for map %s %s %s\n",
- msg, map->cpuid, map->version, map->type);
+ pr_debug("%s for map %s %s\n", msg, map->arch, map->cpuid);
pr_debug("On metric %s\n", pe->metric_name);
pr_debug("On expression %s\n", pe->metric_expr);
}
--
2.37.1.595.g718a3a8f04-goog
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