From: Ian Rogers <irogers@google.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Kan Liang <kan.liang@linux.intel.com>,
Ahmad Yasin <ahmad.yasin@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Stephane Eranian <eranian@google.com>,
Andi Kleen <ak@linux.intel.com>,
Perry Taylor <perry.taylor@intel.com>,
Samantha Alt <samantha.alt@intel.com>,
Caleb Biggers <caleb.biggers@intel.com>,
Weilin Wang <weilin.wang@intel.com>,
Edward Baker <edward.baker@intel.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Florian Fischer <florian.fischer@muhq.space>,
Rob Herring <robh@kernel.org>,
Zhengjun Xing <zhengjun.xing@linux.intel.com>,
John Garry <john.g.garry@oracle.com>,
Kajol Jain <kjain@linux.ibm.com>,
Sumanth Korikkar <sumanthk@linux.ibm.com>,
Thomas Richter <tmricht@linux.ibm.com>,
Tiezhu Yang <yangtiezhu@loongson.cn>,
Ravi Bangoria <ravi.bangoria@amd.com>,
Leo Yan <leo.yan@linaro.org>,
Yang Jihong <yangjihong1@huawei.com>,
James Clark <james.clark@arm.com>,
Suzuki Poulouse <suzuki.poulose@arm.com>,
Kang Minchul <tegongkang@gmail.com>,
Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Ian Rogers <irogers@google.com>
Subject: [PATCH v2 23/43] perf parse-events: Wildcard legacy cache events
Date: Fri, 28 Apr 2023 00:37:49 -0700 [thread overview]
Message-ID: <20230428073809.1803624-24-irogers@google.com> (raw)
In-Reply-To: <20230428073809.1803624-1-irogers@google.com>
It is inconsistent that "perf stat -e instructions-retired" wildcard
opens on all PMUs while legacy cache events like "perf stat -e
L1-dcache-load-miss" do not. A behavior introduced by hybrid is that a
legacy cache event like L1-dcache-load-miss should wildcard open on
all hybrid PMUs. Previously hybrid would call to is_event_supported
for each PMU, a failure of which results in the event not being
added. This isn't done in this case as the parser should just create
perf_event_attr and the later open should fail, or the counter give
"<not counted>". If this wants to be avoided then the PMU can be named
with the event.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/parse-events-hybrid.c | 33 -------------
tools/perf/util/parse-events-hybrid.h | 7 ---
tools/perf/util/parse-events.c | 68 ++++++++++++++-------------
tools/perf/util/parse-events.h | 3 +-
tools/perf/util/parse-events.y | 2 +-
5 files changed, 37 insertions(+), 76 deletions(-)
diff --git a/tools/perf/util/parse-events-hybrid.c b/tools/perf/util/parse-events-hybrid.c
index 7c9f9150bad5..d2c0be051d46 100644
--- a/tools/perf/util/parse-events-hybrid.c
+++ b/tools/perf/util/parse-events-hybrid.c
@@ -179,36 +179,3 @@ int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
return add_raw_hybrid(parse_state, list, attr, name, metric_id,
config_terms);
}
-
-int parse_events__add_cache_hybrid(struct list_head *list, int *idx,
- struct perf_event_attr *attr,
- const char *name,
- const char *metric_id,
- struct list_head *config_terms,
- bool *hybrid,
- struct parse_events_state *parse_state)
-{
- struct perf_pmu *pmu;
- int ret;
-
- *hybrid = false;
- if (!perf_pmu__has_hybrid())
- return 0;
-
- *hybrid = true;
- perf_pmu__for_each_hybrid_pmu(pmu) {
- LIST_HEAD(terms);
-
- if (pmu_cmp(parse_state, pmu))
- continue;
-
- copy_config_terms(&terms, config_terms);
- ret = create_event_hybrid(PERF_TYPE_HW_CACHE, idx, list,
- attr, name, metric_id, &terms, pmu);
- free_config_terms(&terms);
- if (ret)
- return ret;
- }
-
- return 0;
-}
diff --git a/tools/perf/util/parse-events-hybrid.h b/tools/perf/util/parse-events-hybrid.h
index cbc05fec02a2..bc2966e73897 100644
--- a/tools/perf/util/parse-events-hybrid.h
+++ b/tools/perf/util/parse-events-hybrid.h
@@ -15,11 +15,4 @@ int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
struct list_head *config_terms,
bool *hybrid);
-int parse_events__add_cache_hybrid(struct list_head *list, int *idx,
- struct perf_event_attr *attr,
- const char *name, const char *metric_id,
- struct list_head *config_terms,
- bool *hybrid,
- struct parse_events_state *parse_state);
-
#endif /* __PERF_PARSE_EVENTS_HYBRID_H */
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 166f4dc5bae2..a07d4ecad13e 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -472,46 +472,48 @@ static int parse_events__decode_legacy_cache(const char *name, int pmu_type, __u
int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
struct parse_events_error *err,
- struct list_head *head_config,
- struct parse_events_state *parse_state)
+ struct list_head *head_config)
{
- struct perf_event_attr attr;
- LIST_HEAD(config_terms);
- const char *config_name, *metric_id;
- int ret;
- bool hybrid;
+ struct perf_pmu *pmu = NULL;
+ bool found_supported = false;
+ const char *config_name = get_config_name(head_config);
+ const char *metric_id = get_config_metric_id(head_config);
+ while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+ LIST_HEAD(config_terms);
+ struct perf_event_attr attr;
+ int ret;
- memset(&attr, 0, sizeof(attr));
- attr.type = PERF_TYPE_HW_CACHE;
- ret = parse_events__decode_legacy_cache(name, /*pmu_type=*/0, &attr.config);
- if (ret)
- return ret;
+ /* Skip unsupported PMUs. */
+ if (!perf_pmu__supports_legacy_cache(pmu))
+ continue;
- if (head_config) {
- if (config_attr(&attr, head_config, err,
- config_term_common))
- return -EINVAL;
+ memset(&attr, 0, sizeof(attr));
+ attr.type = PERF_TYPE_HW_CACHE;
- if (get_config_terms(head_config, &config_terms))
- return -ENOMEM;
- }
+ ret = parse_events__decode_legacy_cache(name, pmu->type, &attr.config);
+ if (ret)
+ return ret;
- config_name = get_config_name(head_config);
- metric_id = get_config_metric_id(head_config);
- ret = parse_events__add_cache_hybrid(list, idx, &attr,
- config_name ? : name,
- metric_id,
- &config_terms,
- &hybrid, parse_state);
- if (hybrid)
- goto out_free_terms;
+ found_supported = true;
- ret = add_event(list, idx, &attr, config_name ? : name, metric_id,
- &config_terms);
-out_free_terms:
- free_config_terms(&config_terms);
- return ret;
+ if (head_config) {
+ if (config_attr(&attr, head_config, err,
+ config_term_common))
+ return -EINVAL;
+
+ if (get_config_terms(head_config, &config_terms))
+ return -ENOMEM;
+ }
+
+ if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name,
+ metric_id, pmu, &config_terms, /*auto_merge_stats=*/false,
+ /*cpu_list=*/NULL) == NULL)
+ return -ENOMEM;
+
+ free_config_terms(&config_terms);
+ }
+ return found_supported ? 0 : -EINVAL;
}
#ifdef HAVE_LIBTRACEEVENT
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 5acb62c2e00a..0c26303f7f63 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -172,8 +172,7 @@ int parse_events_add_tool(struct parse_events_state *parse_state,
int tool_event);
int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
struct parse_events_error *error,
- struct list_head *head_config,
- struct parse_events_state *parse_state);
+ struct list_head *head_config);
int parse_events_add_breakpoint(struct list_head *list, int *idx,
u64 addr, char *type, u64 len);
int parse_events_add_pmu(struct parse_events_state *parse_state,
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index f84fa1b132b3..cc7528558845 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -476,7 +476,7 @@ PE_LEGACY_CACHE opt_event_config
list = alloc_list();
ABORT_ON(!list);
- err = parse_events_add_cache(list, &parse_state->idx, $1, error, $2, parse_state);
+ err = parse_events_add_cache(list, &parse_state->idx, $1, error, $2);
parse_events_terms__delete($2);
free($1);
--
2.40.1.495.gc816e09b53d-goog
next prev parent reply other threads:[~2023-04-28 7:43 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-28 7:37 [PATCH v2 00/43] Fix perf on Intel hybrid CPUs Ian Rogers
2023-04-28 7:37 ` [PATCH v2 01/43] perf stat: Disable TopdownL1 on hybrid Ian Rogers
2023-04-28 13:31 ` Liang, Kan
2023-04-29 1:17 ` Arnaldo Carvalho de Melo
2023-04-28 7:37 ` [PATCH v2 02/43] perf stat: Introduce skippable evsels Ian Rogers
2023-04-28 13:30 ` Liang, Kan
2023-04-28 7:37 ` [PATCH v2 04/43] perf vendor events intel: Add alderlake metric constraints Ian Rogers
2023-04-28 7:37 ` [PATCH v2 05/43] perf vendor events intel: Add icelake " Ian Rogers
2023-04-28 7:37 ` [PATCH v2 06/43] perf vendor events intel: Add icelakex " Ian Rogers
2023-04-28 7:37 ` [PATCH v2 07/43] perf vendor events intel: Add sapphirerapids " Ian Rogers
2023-04-28 7:37 ` [PATCH v2 08/43] perf vendor events intel: Add tigerlake " Ian Rogers
2023-04-28 7:37 ` [PATCH v2 09/43] perf stat: Avoid segv on counter->name Ian Rogers
2023-04-29 1:20 ` Arnaldo Carvalho de Melo
2023-04-28 7:37 ` [PATCH v2 10/43] perf test: Test more sysfs events Ian Rogers
2023-04-28 7:37 ` [PATCH v2 11/43] perf test: Use valid for PMU tests Ian Rogers
2023-04-28 7:37 ` [PATCH v2 12/43] perf test: Mask config then test Ian Rogers
2023-04-28 7:37 ` [PATCH v2 13/43] perf test: Test more with config_cache Ian Rogers
2023-04-28 7:37 ` [PATCH v2 14/43] perf test: Roundtrip name, don't assume 1 event per name Ian Rogers
2023-04-28 7:37 ` [PATCH v2 15/43] perf parse-events: Set attr.type to PMU type early Ian Rogers
2023-04-28 7:37 ` [PATCH v2 16/43] perf parse-events: Set pmu_name whenever a pmu is given Ian Rogers
2023-04-28 7:37 ` [PATCH v2 17/43] perf print-events: Avoid unnecessary strlist Ian Rogers
2023-04-28 7:37 ` [PATCH v2 18/43] perf parse-events: Avoid scanning PMUs before parsing Ian Rogers
2023-04-28 7:37 ` [PATCH v2 19/43] perf evsel: Modify group pmu name for software events Ian Rogers
2023-04-28 7:37 ` [PATCH v2 20/43] perf test: Move x86 hybrid tests to arch/x86 Ian Rogers
2023-04-28 13:35 ` Liang, Kan
2023-04-28 13:46 ` Liang, Kan
2023-04-28 7:37 ` [PATCH v2 21/43] perf test x86 hybrid: Update test expectations Ian Rogers
2023-04-28 13:57 ` Liang, Kan
2023-04-28 7:37 ` [PATCH v2 22/43] perf parse-events: Support PMUs for legacy cache events Ian Rogers
2023-04-28 7:37 ` Ian Rogers [this message]
2023-04-28 7:37 ` [PATCH v2 24/43] perf print-events: Print legacy cache events for each PMU Ian Rogers
2023-04-28 7:37 ` [PATCH v2 25/43] perf parse-events: Support wildcards on raw events Ian Rogers
2023-04-28 7:37 ` [PATCH v2 26/43] perf parse-events: Remove now unused hybrid logic Ian Rogers
2023-04-28 7:37 ` [PATCH v2 27/43] perf parse-events: Minor type safety cleanup Ian Rogers
2023-04-28 7:37 ` [PATCH v2 28/43] perf parse-events: Add pmu filter Ian Rogers
2023-04-28 7:37 ` [PATCH v2 29/43] perf stat: Make cputype filter generic Ian Rogers
2023-04-28 7:37 ` [PATCH v2 30/43] perf test: Add cputype testing to perf stat Ian Rogers
2023-04-28 7:37 ` [PATCH v2 31/43] perf test: Fix parse-events tests for >1 core PMU Ian Rogers
2023-04-28 7:37 ` [PATCH v2 32/43] perf parse-events: Support hardware events as terms Ian Rogers
2023-04-28 7:37 ` [PATCH v2 33/43] perf parse-events: Avoid error when assigning a term Ian Rogers
2023-04-28 7:38 ` [PATCH v2 34/43] perf parse-events: Avoid error when assigning a legacy cache term Ian Rogers
2023-04-28 7:38 ` [PATCH v2 35/43] perf parse-events: Don't auto merge hybrid wildcard events Ian Rogers
2023-04-28 7:38 ` [PATCH v2 36/43] perf parse-events: Don't reorder atom cpu events Ian Rogers
2023-04-28 7:38 ` [PATCH v2 37/43] perf metrics: Be PMU specific for referenced metrics Ian Rogers
2023-04-28 7:38 ` [PATCH v2 38/43] perf stat: Command line PMU metric filtering Ian Rogers
2023-04-28 7:38 ` [PATCH v2 39/43] perf vendor events intel: Correct alderlake metrics Ian Rogers
2023-04-28 7:38 ` [PATCH v2 40/43] perf jevents: Don't rewrite metrics across PMUs Ian Rogers
2023-04-28 7:38 ` [PATCH v2 41/43] perf metrics: Be PMU specific in event match Ian Rogers
2023-04-28 7:38 ` [PATCH v2 42/43] perf stat: Don't disable TopdownL1 metric on hybrid Ian Rogers
2023-04-28 7:38 ` [PATCH v2 43/43] perf parse-events: Reduce scope of is_event_supported Ian Rogers
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