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perf cpumap: Migrate to libperf cpumap api

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Switch from directly accessing the perf_cpu_map to using the appropriate
libperf API when possible. Using the API simplifies the job of
refactoring use of perf_cpu_map.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: André Almeida <andrealmeid@collabora.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Miaoqian Lin <linmq006@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Song Liu <song@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Yury Norov <yury.norov@gmail.com>
Link: http://lore.kernel.org/lkml/20220122045811.3402706-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers
2022-01-21 20:58:10 -08:00
committed by Arnaldo Carvalho de Melo
parent 1d1d9af254
commit 4402869939
31 changed files with 99 additions and 87 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
tools/perf/util/evsel.c
View File

@@ -1782,7 +1782,7 @@ static int __evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus,
nthreads = threads->nr;
if (evsel->core.fd == NULL &&
perf_evsel__alloc_fd(&evsel->core, cpus->nr, nthreads) < 0)
perf_evsel__alloc_fd(&evsel->core, perf_cpu_map__nr(cpus), nthreads) < 0)
return -ENOMEM;
evsel->open_flags = PERF_FLAG_FD_CLOEXEC;
@@ -2020,9 +2020,10 @@ retry_open:
test_attr__ready();
pr_debug2_peo("sys_perf_event_open: pid %d cpu %d group_fd %d flags %#lx",
pid, cpus->map[idx].cpu, group_fd, evsel->open_flags);
pid, perf_cpu_map__cpu(cpus, idx).cpu, group_fd, evsel->open_flags);
fd = sys_perf_event_open(&evsel->core.attr, pid, cpus->map[idx].cpu,
fd = sys_perf_event_open(&evsel->core.attr, pid,
perf_cpu_map__cpu(cpus, idx).cpu,
group_fd, evsel->open_flags);
FD(evsel, idx, thread) = fd;
@@ -2038,7 +2039,8 @@ retry_open:
bpf_counter__install_pe(evsel, idx, fd);
if (unlikely(test_attr__enabled)) {
test_attr__open(&evsel->core.attr, pid, cpus->map[idx],
test_attr__open(&evsel->core.attr, pid,
perf_cpu_map__cpu(cpus, idx),
fd, group_fd, evsel->open_flags);
}
@@ -2079,7 +2081,8 @@ try_fallback:
if (evsel__precise_ip_fallback(evsel))
goto retry_open;
if (evsel__ignore_missing_thread(evsel, cpus->nr, idx, threads, thread, err)) {
if (evsel__ignore_missing_thread(evsel, perf_cpu_map__nr(cpus),
idx, threads, thread, err)) {
/* We just removed 1 thread, so lower the upper nthreads limit. */
nthreads--;
@@ -2119,7 +2122,7 @@ out_close:
int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
struct perf_thread_map *threads)
{
return evsel__open_cpu(evsel, cpus, threads, 0, cpus ? cpus->nr : 1);
return evsel__open_cpu(evsel, cpus, threads, 0, perf_cpu_map__nr(cpus));
}
void evsel__close(struct evsel *evsel)
@@ -2131,8 +2134,7 @@ void evsel__close(struct evsel *evsel)
int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx)
{
if (cpu_map_idx == -1)
return evsel__open_cpu(evsel, cpus, NULL, 0,
cpus ? cpus->nr : 1);
return evsel__open_cpu(evsel, cpus, NULL, 0, perf_cpu_map__nr(cpus));
return evsel__open_cpu(evsel, cpus, NULL, cpu_map_idx, cpu_map_idx + 1);
}
@@ -2982,7 +2984,7 @@ int evsel__store_ids(struct evsel *evsel, struct evlist *evlist)
struct perf_cpu_map *cpus = evsel->core.cpus;
struct perf_thread_map *threads = evsel->core.threads;
if (perf_evsel__alloc_id(&evsel->core, cpus->nr, threads->nr))
if (perf_evsel__alloc_id(&evsel->core, perf_cpu_map__nr(cpus), threads->nr))
return -ENOMEM;
return store_evsel_ids(evsel, evlist);