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perf evsel: Add accessor for tool_event

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Currently tool events use a dedicated variable within the evsel. Later
changes will move this to the unused struct perf_event_attr config for
these events. Add an accessor to allow the later change to be well
typed and avoid changing all uses.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20240907050830.6752-4-irogers@google.com
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Yang Jihong <yangjihong@bytedance.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Clément Le Goffic <clement.legoffic@foss.st.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Junhao He <hejunhao3@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Benjamin Gray <bgray@linux.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Xu Yang <xu.yang_2@nxp.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Veronika Molnarova <vmolnaro@redhat.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2024-09-06 22:08:18 -07:00 committed by Arnaldo Carvalho de Melo
parent 925320737a
commit f08cc25843
4 changed files with 21 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/perf/builtin-stat.c
View File

@ -294,14 +294,14 @@ static int read_single_counter(struct evsel *counter, int cpu_map_idx, int threa
* terminates. Use the wait4 values in that case.
*/
if (err && cpu_map_idx == 0 &&
(counter->tool_event == PERF_TOOL_USER_TIME ||
counter->tool_event == PERF_TOOL_SYSTEM_TIME)) {
(evsel__tool_event(counter) == PERF_TOOL_USER_TIME ||
evsel__tool_event(counter) == PERF_TOOL_SYSTEM_TIME)) {
u64 val, *start_time;
struct perf_counts_values *count =
perf_counts(counter->counts, cpu_map_idx, thread);
start_time = xyarray__entry(counter->start_times, cpu_map_idx, thread);
if (counter->tool_event == PERF_TOOL_USER_TIME)
if (evsel__tool_event(counter) == PERF_TOOL_USER_TIME)
val = ru_stats.ru_utime_usec_stat.mean;
else
val = ru_stats.ru_stime_usec_stat.mean;

24
tools/perf/util/evsel.c
View File

@ -773,7 +773,7 @@ const char *evsel__name(struct evsel *evsel)
case PERF_TYPE_SOFTWARE:
if (evsel__is_tool(evsel))
evsel__tool_name(evsel->tool_event, bf, sizeof(bf));
evsel__tool_name(evsel__tool_event(evsel), bf, sizeof(bf));
else
evsel__sw_name(evsel, bf, sizeof(bf));
break;
@ -811,7 +811,7 @@ const char *evsel__metric_id(const struct evsel *evsel)
return evsel->metric_id;
if (evsel__is_tool(evsel))
return perf_tool_event__to_str(evsel->tool_event);
return perf_tool_event__to_str(evsel__tool_event(evsel));
return "unknown";
}
@ -1503,8 +1503,8 @@ void evsel__exit(struct evsel *evsel)
evsel->per_pkg_mask = NULL;
zfree(&evsel->metric_events);
perf_evsel__object.fini(evsel);
if (evsel->tool_event == PERF_TOOL_SYSTEM_TIME ||
evsel->tool_event == PERF_TOOL_USER_TIME)
if (evsel__tool_event(evsel) == PERF_TOOL_SYSTEM_TIME ||
evsel__tool_event(evsel) == PERF_TOOL_USER_TIME)
xyarray__delete(evsel->start_times);
}
@ -1785,7 +1785,7 @@ static int evsel__read_tool(struct evsel *evsel, int cpu_map_idx, int thread)
count = perf_counts(evsel->counts, cpu_map_idx, thread);
switch (evsel->tool_event) {
switch (evsel__tool_event(evsel)) {
case PERF_TOOL_DURATION_TIME:
/*
* Pretend duration_time is only on the first CPU and thread, or
@ -1800,7 +1800,7 @@ static int evsel__read_tool(struct evsel *evsel, int cpu_map_idx, int thread)
break;
case PERF_TOOL_USER_TIME:
case PERF_TOOL_SYSTEM_TIME: {
bool system = evsel->tool_event == PERF_TOOL_SYSTEM_TIME;
bool system = evsel__tool_event(evsel) == PERF_TOOL_SYSTEM_TIME;
start_time = xyarray__entry(evsel->start_times, cpu_map_idx, thread);
fd = FD(evsel, cpu_map_idx, thread);
@ -2072,8 +2072,8 @@ static int __evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus,
perf_evsel__alloc_fd(&evsel->core, perf_cpu_map__nr(cpus), nthreads) < 0)
return -ENOMEM;
if ((evsel->tool_event == PERF_TOOL_SYSTEM_TIME ||
evsel->tool_event == PERF_TOOL_USER_TIME) &&
if ((evsel__tool_event(evsel) == PERF_TOOL_SYSTEM_TIME ||
evsel__tool_event(evsel) == PERF_TOOL_USER_TIME) &&
!evsel->start_times) {
evsel->start_times = xyarray__new(perf_cpu_map__nr(cpus), nthreads, sizeof(__u64));
if (!evsel->start_times)
@ -2262,7 +2262,7 @@ static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus,
int pid = -1, err, old_errno;
enum rlimit_action set_rlimit = NO_CHANGE;
if (evsel->tool_event == PERF_TOOL_DURATION_TIME) {
if (evsel__tool_event(evsel) == PERF_TOOL_DURATION_TIME) {
if (evsel->core.attr.sample_period) /* no sampling */
return -EINVAL;
evsel->start_time = rdclock();
@ -2304,9 +2304,9 @@ retry_open:
if (!evsel->cgrp && !evsel->core.system_wide)
pid = perf_thread_map__pid(threads, thread);
if (evsel->tool_event == PERF_TOOL_USER_TIME ||
evsel->tool_event == PERF_TOOL_SYSTEM_TIME) {
bool system = evsel->tool_event == PERF_TOOL_SYSTEM_TIME;
if (evsel__tool_event(evsel) == PERF_TOOL_USER_TIME ||
evsel__tool_event(evsel) == PERF_TOOL_SYSTEM_TIME) {
bool system = evsel__tool_event(evsel) == PERF_TOOL_SYSTEM_TIME;
__u64 *start_time = NULL;
if (evsel->core.attr.sample_period) {

5
tools/perf/util/evsel.h
View File

@ -330,6 +330,11 @@ static inline bool evsel__is_retire_lat(const struct evsel *evsel)
return evsel->retire_lat;
}
static inline enum perf_tool_event evsel__tool_event(const struct evsel *evsel)
{
return evsel->tool_event;
}
const char *evsel__group_name(struct evsel *evsel);
int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);

2
tools/perf/util/stat-shadow.c
View File

@ -380,7 +380,7 @@ static int prepare_metric(const struct metric_expr *mexp,
struct stats *stats;
double scale;
switch (metric_events[i]->tool_event) {
switch (evsel__tool_event(metric_events[i])) {
case PERF_TOOL_DURATION_TIME:
stats = &walltime_nsecs_stats;
scale = 1e-9;