From: Ian Rogers <irogers@google.com>
To: John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
James Clark <james.clark@arm.com>,
Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Andi Kleen <ak@linux.intel.com>,
Zhengjun Xing <zhengjun.xing@linux.intel.com>,
Ravi Bangoria <ravi.bangoria@amd.com>,
Kan Liang <kan.liang@linux.intel.com>,
Adrian Hunter <adrian.hunter@intel.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-perf-users@vger.kernel.org
Cc: Stephane Eranian <eranian@google.com>, Ian Rogers <irogers@google.com>
Subject: [PATCH v4 08/17] perf pmu-events: Hide pmu_sys_event_tables
Date: Thu, 4 Aug 2022 15:18:07 -0700 [thread overview]
Message-ID: <20220804221816.1802790-9-irogers@google.com> (raw)
In-Reply-To: <20220804221816.1802790-1-irogers@google.com>
Move usage of the table to pmu-events.c so it may be hidden. By
abstracting the table the implementation can later be changed.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/pmu-events/empty-pmu-events.c | 37 ++++++++++++++++++-
tools/perf/pmu-events/jevents.py | 45 ++++++++++++++++++++++--
tools/perf/pmu-events/pmu-events.h | 11 +++---
tools/perf/tests/pmu-events.c | 14 +-------
tools/perf/util/pmu.c | 27 --------------
tools/perf/util/pmu.h | 2 --
6 files changed, 84 insertions(+), 52 deletions(-)
diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index 4182a986f505..216ea0482c37 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -6,6 +6,8 @@
* The test cpu/soc is provided for testing.
*/
#include "pmu-events/pmu-events.h"
+#include <string.h>
+#include <stddef.h>
static const struct pmu_event pme_test_soc_cpu[] = {
{
@@ -145,7 +147,12 @@ static const struct pmu_event pme_test_soc_sys[] = {
},
};
-const struct pmu_sys_events pmu_sys_event_tables[] = {
+struct pmu_sys_events {
+ const char *name;
+ const struct pmu_event *table;
+};
+
+static const struct pmu_sys_events pmu_sys_event_tables[] = {
{
.table = pme_test_soc_sys,
.name = "pme_test_soc_sys",
@@ -154,3 +161,31 @@ const struct pmu_sys_events pmu_sys_event_tables[] = {
.table = 0
},
};
+
+const struct pmu_event *find_sys_events_table(const char *name)
+{
+ for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
+ tables->name;
+ tables++) {
+ if (!strcmp(tables->name, name))
+ return tables->table;
+ }
+ return NULL;
+}
+
+int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data)
+{
+ for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
+ tables->name;
+ tables++) {
+ for (const struct pmu_event *pe = &tables->table[0];
+ pe->name || pe->metric_group || pe->metric_name;
+ pe++) {
+ int ret = fn(pe, data);
+
+ if (ret)
+ return ret;
+ }
+ }
+ return 0;
+}
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 30e0e792221a..dd21bc9eeeed 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -370,8 +370,14 @@ def print_mapping_table(archs: Sequence[str]) -> None:
def print_system_mapping_table() -> None:
"""C struct mapping table array for tables from /sys directories."""
- _args.output_file.write(
- '\nconst struct pmu_sys_events pmu_sys_event_tables[] = {\n')
+ _args.output_file.write("""
+struct pmu_sys_events {
+\tconst char *name;
+\tconst struct pmu_event *table;
+};
+
+static const struct pmu_sys_events pmu_sys_event_tables[] = {
+""")
for tblname in _sys_event_tables:
_args.output_file.write(f"""\t{{
\t\t.table = {tblname},
@@ -382,6 +388,34 @@ def print_system_mapping_table() -> None:
\t\t.table = 0
\t},
};
+
+const struct pmu_event *find_sys_events_table(const char *name)
+{
+ for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
+ tables->name;
+ tables++) {
+ if (!strcmp(tables->name, name))
+ return tables->table;
+ }
+ return NULL;
+}
+
+int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data)
+{
+ for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
+ tables->name;
+ tables++) {
+ for (const struct pmu_event *pe = &tables->table[0];
+ pe->name || pe->metric_group || pe->metric_name;
+ pe++) {
+ int ret = fn(pe, data);
+
+ if (ret)
+ return ret;
+ }
+ }
+ return 0;
+}
""")
@@ -413,7 +447,12 @@ def main() -> None:
'output_file', type=argparse.FileType('w'), nargs='?', default=sys.stdout)
_args = ap.parse_args()
- _args.output_file.write("#include \"pmu-events/pmu-events.h\"\n")
+ _args.output_file.write("""
+#include "pmu-events/pmu-events.h"
+#include <string.h>
+#include <stddef.h>
+
+""")
archs = []
for item in os.scandir(_args.starting_dir):
if not item.is_dir():
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index a491b117c8ac..2386212b1df0 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -43,16 +43,15 @@ struct pmu_events_map {
const struct pmu_event *table;
};
-struct pmu_sys_events {
- const char *name;
- const struct pmu_event *table;
-};
-
/*
* Global table mapping each known CPU for the architecture to its
* table of PMU events.
*/
extern const struct pmu_events_map pmu_events_map[];
-extern const struct pmu_sys_events pmu_sys_event_tables[];
+
+const struct pmu_event *find_sys_events_table(const char *name);
+
+typedef int (*pmu_event_iter_fn)(const struct pmu_event *pe, void *data);
+int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data);
#endif
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 82192f1a7bf7..a39a2c99ede6 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -286,18 +286,6 @@ static const struct pmu_events_map *__test_pmu_get_events_map(void)
return NULL;
}
-static const struct pmu_event *__test_pmu_get_sys_events_table(void)
-{
- const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
-
- for ( ; tables->name; tables++) {
- if (!strcmp("pme_test_soc_sys", tables->name))
- return tables->table;
- }
-
- return NULL;
-}
-
static int compare_pmu_events(const struct pmu_event *e1, const struct pmu_event *e2)
{
if (!is_same(e1->name, e2->name)) {
@@ -451,7 +439,7 @@ static int compare_alias_to_test_event(struct perf_pmu_alias *alias,
static int test__pmu_event_table(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
- const struct pmu_event *sys_event_tables = __test_pmu_get_sys_events_table();
+ const struct pmu_event *sys_event_tables = find_sys_events_table("pme_test_soc_sys");
const struct pmu_events_map *map = __test_pmu_get_events_map();
const struct pmu_event *table;
int map_events = 0, expected_events;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 0112e1c36418..d8717c4548a4 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -868,33 +868,6 @@ static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu)
pmu_add_cpu_aliases_map(head, pmu, map);
}
-void pmu_for_each_sys_event(pmu_sys_event_iter_fn fn, void *data)
-{
- int i = 0;
-
- while (1) {
- const struct pmu_sys_events *event_table;
- int j = 0;
-
- event_table = &pmu_sys_event_tables[i++];
-
- if (!event_table->table)
- break;
-
- while (1) {
- const struct pmu_event *pe = &event_table->table[j++];
- int ret;
-
- if (!pe->name && !pe->metric_group && !pe->metric_name)
- break;
-
- ret = fn(pe, data);
- if (ret)
- break;
- }
- }
-}
-
struct pmu_sys_event_iter_data {
struct list_head *head;
struct perf_pmu *pmu;
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 4b45fd8da5a3..7e667eec2a01 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -133,8 +133,6 @@ const struct pmu_events_map *pmu_events_map__find(void);
bool pmu_uncore_alias_match(const char *pmu_name, const char *name);
void perf_pmu_free_alias(struct perf_pmu_alias *alias);
-typedef int (*pmu_sys_event_iter_fn)(const struct pmu_event *pe, void *data);
-void pmu_for_each_sys_event(pmu_sys_event_iter_fn fn, void *data);
int perf_pmu__convert_scale(const char *scale, char **end, double *sval);
int perf_pmu__caps_parse(struct perf_pmu *pmu);
--
2.37.1.559.g78731f0fdb-goog
next prev parent reply other threads:[~2022-08-04 22:19 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-04 22:17 [PATCH v4 00/17] Compress the pmu_event tables Ian Rogers
2022-08-04 22:18 ` [PATCH v4 01/17] perf jevents: Clean up pytype warnings Ian Rogers
2022-08-09 19:36 ` Arnaldo Carvalho de Melo
2022-08-04 22:18 ` [PATCH v4 02/17] perf jevents: Simplify generation of C-string Ian Rogers
2022-08-09 19:37 ` Arnaldo Carvalho de Melo
2022-08-04 22:18 ` [PATCH v4 03/17] perf jevents: Add JEVENTS_ARCH make option Ian Rogers
2022-08-05 9:55 ` John Garry
2022-08-09 19:38 ` Arnaldo Carvalho de Melo
2022-08-04 22:18 ` [PATCH v4 04/17] perf jevent: Add an 'all' architecture argument Ian Rogers
2022-08-05 10:34 ` John Garry
2022-08-04 22:18 ` [PATCH v4 05/17] perf jevents: Remove the type/version variables Ian Rogers
2022-08-05 10:35 ` John Garry
2022-08-04 22:18 ` [PATCH v4 06/17] perf jevents: Provide path to json file on error Ian Rogers
2022-08-04 22:18 ` [PATCH v4 07/17] perf jevents: Sort json files entries Ian Rogers
2022-08-05 10:49 ` John Garry
2022-08-10 14:23 ` Ian Rogers
2022-08-10 15:53 ` John Garry
2022-08-04 22:18 ` Ian Rogers [this message]
2022-08-05 11:15 ` [PATCH v4 08/17] perf pmu-events: Hide pmu_sys_event_tables John Garry
2022-08-10 14:25 ` Ian Rogers
2022-08-04 22:18 ` [PATCH v4 09/17] perf pmu-events: Avoid passing pmu_events_map Ian Rogers
2022-08-05 11:28 ` John Garry
2022-08-10 15:23 ` Ian Rogers
2022-08-04 22:18 ` [PATCH v4 10/17] perf pmu-events: Hide pmu_events_map Ian Rogers
2022-08-05 12:31 ` John Garry
2022-08-10 14:29 ` Ian Rogers
2022-08-11 14:47 ` John Garry
2022-08-04 22:18 ` [PATCH v4 11/17] perf test: Use full metric resolution Ian Rogers
2022-08-04 22:18 ` [PATCH v4 12/17] perf pmu-events: Move test events/metrics to json Ian Rogers
2022-08-05 12:34 ` John Garry
2022-08-04 22:18 ` [PATCH v4 13/17] perf pmu-events: Don't assume pmu_event is an array Ian Rogers
2022-08-05 12:56 ` John Garry
2022-08-04 22:18 ` [PATCH v4 14/17] perf pmu-events: Hide the pmu_events Ian Rogers
2022-08-04 22:18 ` [PATCH v4 15/17] perf metrics: Copy entire pmu_event in find metric Ian Rogers
2022-08-04 22:18 ` [PATCH v4 16/17] perf jevents: Compress the pmu_events_table Ian Rogers
2022-08-05 14:02 ` John Garry
2022-08-10 14:35 ` Ian Rogers
2022-08-04 22:18 ` [PATCH v4 17/17] perf jevents: Fold strings optimization Ian Rogers
2022-08-09 19:40 ` [PATCH v4 00/17] Compress the pmu_event tables Arnaldo Carvalho de Melo
2022-08-09 19:41 ` Arnaldo Carvalho de Melo
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