From: Ian Rogers <irogers@google.com>
To: Andi Kleen <ak@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>,
Namhyung Kim <namhyung@kernel.org>,
John Garry <john.garry@huawei.com>,
Kajol Jain <kjain@linux.ibm.com>,
"Paul A . Clarke" <pc@us.ibm.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Riccardo Mancini <rickyman7@gmail.com>,
Kan Liang <kan.liang@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
Vineet Singh <vineet.singh@intel.com>,
James Clark <james.clark@arm.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>,
coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
zhengjun.xing@intel.com
Cc: eranian@google.com, Ian Rogers <irogers@google.com>
Subject: [PATCH v4 27/48] libperf: Switch cpu to more accurate cpu_map_idx
Date: Tue, 4 Jan 2022 22:13:30 -0800 [thread overview]
Message-ID: <20220105061351.120843-28-irogers@google.com> (raw)
In-Reply-To: <20220105061351.120843-1-irogers@google.com>
Modify variable names and adopt perf_cpu_map__for_each_cpu in
perf_evsel__open. Renaming is done by looking for consistency in API
usage.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/lib/perf/evsel.c | 88 +++++++++++++++--------------
tools/lib/perf/include/perf/evsel.h | 10 ++--
2 files changed, 50 insertions(+), 48 deletions(-)
diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c
index 68f83d2c27c1..8028b5a4da69 100644
--- a/tools/lib/perf/evsel.c
+++ b/tools/lib/perf/evsel.c
@@ -43,18 +43,22 @@ void perf_evsel__delete(struct perf_evsel *evsel)
free(evsel);
}
-#define FD(e, x, y) ((int *) xyarray__entry(e->fd, x, y))
-#define MMAP(e, x, y) (e->mmap ? ((struct perf_mmap *) xyarray__entry(e->mmap, x, y)) : NULL)
+#define FD(_evsel, _cpu_map_idx, _thread) \
+ ((int *)xyarray__entry(_evsel->fd, _cpu_map_idx, _thread))
+#define MMAP(_evsel, _cpu_map_idx, _thread) \
+ (_evsel->mmap ? ((struct perf_mmap *) xyarray__entry(_evsel->mmap, _cpu_map_idx, _thread)) \
+ : NULL)
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
{
evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int));
if (evsel->fd) {
- int cpu, thread;
- for (cpu = 0; cpu < ncpus; cpu++) {
+ int idx, thread;
+
+ for (idx = 0; idx < ncpus; idx++) {
for (thread = 0; thread < nthreads; thread++) {
- int *fd = FD(evsel, cpu, thread);
+ int *fd = FD(evsel, idx, thread);
if (fd)
*fd = -1;
@@ -80,7 +84,7 @@ sys_perf_event_open(struct perf_event_attr *attr,
return syscall(__NR_perf_event_open, attr, pid, cpu, group_fd, flags);
}
-static int get_group_fd(struct perf_evsel *evsel, int cpu, int thread, int *group_fd)
+static int get_group_fd(struct perf_evsel *evsel, int cpu_map_idx, int thread, int *group_fd)
{
struct perf_evsel *leader = evsel->leader;
int *fd;
@@ -97,7 +101,7 @@ static int get_group_fd(struct perf_evsel *evsel, int cpu, int thread, int *grou
if (!leader->fd)
return -ENOTCONN;
- fd = FD(leader, cpu, thread);
+ fd = FD(leader, cpu_map_idx, thread);
if (fd == NULL || *fd == -1)
return -EBADF;
@@ -109,7 +113,7 @@ static int get_group_fd(struct perf_evsel *evsel, int cpu, int thread, int *grou
int perf_evsel__open(struct perf_evsel *evsel, struct perf_cpu_map *cpus,
struct perf_thread_map *threads)
{
- int cpu, thread, err = 0;
+ int cpu, idx, thread, err = 0;
if (cpus == NULL) {
static struct perf_cpu_map *empty_cpu_map;
@@ -139,21 +143,21 @@ int perf_evsel__open(struct perf_evsel *evsel, struct perf_cpu_map *cpus,
perf_evsel__alloc_fd(evsel, cpus->nr, threads->nr) < 0)
return -ENOMEM;
- for (cpu = 0; cpu < cpus->nr; cpu++) {
+ perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
for (thread = 0; thread < threads->nr; thread++) {
int fd, group_fd, *evsel_fd;
- evsel_fd = FD(evsel, cpu, thread);
+ evsel_fd = FD(evsel, idx, thread);
if (evsel_fd == NULL)
return -EINVAL;
- err = get_group_fd(evsel, cpu, thread, &group_fd);
+ err = get_group_fd(evsel, idx, thread, &group_fd);
if (err < 0)
return err;
fd = sys_perf_event_open(&evsel->attr,
threads->map[thread].pid,
- cpus->map[cpu], group_fd, 0);
+ cpu, group_fd, 0);
if (fd < 0)
return -errno;
@@ -165,12 +169,12 @@ int perf_evsel__open(struct perf_evsel *evsel, struct perf_cpu_map *cpus,
return err;
}
-static void perf_evsel__close_fd_cpu(struct perf_evsel *evsel, int cpu)
+static void perf_evsel__close_fd_cpu(struct perf_evsel *evsel, int cpu_map_idx)
{
int thread;
for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) {
- int *fd = FD(evsel, cpu, thread);
+ int *fd = FD(evsel, cpu_map_idx, thread);
if (fd && *fd >= 0) {
close(*fd);
@@ -181,10 +185,8 @@ static void perf_evsel__close_fd_cpu(struct perf_evsel *evsel, int cpu)
void perf_evsel__close_fd(struct perf_evsel *evsel)
{
- int cpu;
-
- for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++)
- perf_evsel__close_fd_cpu(evsel, cpu);
+ for (int idx = 0; idx < xyarray__max_x(evsel->fd); idx++)
+ perf_evsel__close_fd_cpu(evsel, idx);
}
void perf_evsel__free_fd(struct perf_evsel *evsel)
@@ -202,29 +204,29 @@ void perf_evsel__close(struct perf_evsel *evsel)
perf_evsel__free_fd(evsel);
}
-void perf_evsel__close_cpu(struct perf_evsel *evsel, int cpu)
+void perf_evsel__close_cpu(struct perf_evsel *evsel, int cpu_map_idx)
{
if (evsel->fd == NULL)
return;
- perf_evsel__close_fd_cpu(evsel, cpu);
+ perf_evsel__close_fd_cpu(evsel, cpu_map_idx);
}
void perf_evsel__munmap(struct perf_evsel *evsel)
{
- int cpu, thread;
+ int idx, thread;
if (evsel->fd == NULL || evsel->mmap == NULL)
return;
- for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++) {
+ for (idx = 0; idx < xyarray__max_x(evsel->fd); idx++) {
for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
- int *fd = FD(evsel, cpu, thread);
+ int *fd = FD(evsel, idx, thread);
if (fd == NULL || *fd < 0)
continue;
- perf_mmap__munmap(MMAP(evsel, cpu, thread));
+ perf_mmap__munmap(MMAP(evsel, idx, thread));
}
}
@@ -234,7 +236,7 @@ void perf_evsel__munmap(struct perf_evsel *evsel)
int perf_evsel__mmap(struct perf_evsel *evsel, int pages)
{
- int ret, cpu, thread;
+ int ret, idx, thread;
struct perf_mmap_param mp = {
.prot = PROT_READ | PROT_WRITE,
.mask = (pages * page_size) - 1,
@@ -246,18 +248,18 @@ int perf_evsel__mmap(struct perf_evsel *evsel, int pages)
if (perf_evsel__alloc_mmap(evsel, xyarray__max_x(evsel->fd), xyarray__max_y(evsel->fd)) < 0)
return -ENOMEM;
- for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++) {
+ for (idx = 0; idx < xyarray__max_x(evsel->fd); idx++) {
for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
- int *fd = FD(evsel, cpu, thread);
+ int *fd = FD(evsel, idx, thread);
struct perf_mmap *map;
if (fd == NULL || *fd < 0)
continue;
- map = MMAP(evsel, cpu, thread);
+ map = MMAP(evsel, idx, thread);
perf_mmap__init(map, NULL, false, NULL);
- ret = perf_mmap__mmap(map, &mp, *fd, cpu);
+ ret = perf_mmap__mmap(map, &mp, *fd, idx);
if (ret) {
perf_evsel__munmap(evsel);
return ret;
@@ -268,14 +270,14 @@ int perf_evsel__mmap(struct perf_evsel *evsel, int pages)
return 0;
}
-void *perf_evsel__mmap_base(struct perf_evsel *evsel, int cpu, int thread)
+void *perf_evsel__mmap_base(struct perf_evsel *evsel, int cpu_map_idx, int thread)
{
- int *fd = FD(evsel, cpu, thread);
+ int *fd = FD(evsel, cpu_map_idx, thread);
- if (fd == NULL || *fd < 0 || MMAP(evsel, cpu, thread) == NULL)
+ if (fd == NULL || *fd < 0 || MMAP(evsel, cpu_map_idx, thread) == NULL)
return NULL;
- return MMAP(evsel, cpu, thread)->base;
+ return MMAP(evsel, cpu_map_idx, thread)->base;
}
int perf_evsel__read_size(struct perf_evsel *evsel)
@@ -303,19 +305,19 @@ int perf_evsel__read_size(struct perf_evsel *evsel)
return size;
}
-int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
+int perf_evsel__read(struct perf_evsel *evsel, int cpu_map_idx, int thread,
struct perf_counts_values *count)
{
size_t size = perf_evsel__read_size(evsel);
- int *fd = FD(evsel, cpu, thread);
+ int *fd = FD(evsel, cpu_map_idx, thread);
memset(count, 0, sizeof(*count));
if (fd == NULL || *fd < 0)
return -EINVAL;
- if (MMAP(evsel, cpu, thread) &&
- !perf_mmap__read_self(MMAP(evsel, cpu, thread), count))
+ if (MMAP(evsel, cpu_map_idx, thread) &&
+ !perf_mmap__read_self(MMAP(evsel, cpu_map_idx, thread), count))
return 0;
if (readn(*fd, count->values, size) <= 0)
@@ -326,13 +328,13 @@ int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
static int perf_evsel__run_ioctl(struct perf_evsel *evsel,
int ioc, void *arg,
- int cpu)
+ int cpu_map_idx)
{
int thread;
for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
int err;
- int *fd = FD(evsel, cpu, thread);
+ int *fd = FD(evsel, cpu_map_idx, thread);
if (fd == NULL || *fd < 0)
return -1;
@@ -346,9 +348,9 @@ static int perf_evsel__run_ioctl(struct perf_evsel *evsel,
return 0;
}
-int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu)
+int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx)
{
- return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, cpu);
+ return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, cpu_map_idx);
}
int perf_evsel__enable(struct perf_evsel *evsel)
@@ -361,9 +363,9 @@ int perf_evsel__enable(struct perf_evsel *evsel)
return err;
}
-int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu)
+int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu_map_idx)
{
- return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_DISABLE, NULL, cpu);
+ return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_DISABLE, NULL, cpu_map_idx);
}
int perf_evsel__disable(struct perf_evsel *evsel)
diff --git a/tools/lib/perf/include/perf/evsel.h b/tools/lib/perf/include/perf/evsel.h
index f401c7484bec..2a9516b42d15 100644
--- a/tools/lib/perf/include/perf/evsel.h
+++ b/tools/lib/perf/include/perf/evsel.h
@@ -28,16 +28,16 @@ LIBPERF_API void perf_evsel__delete(struct perf_evsel *evsel);
LIBPERF_API int perf_evsel__open(struct perf_evsel *evsel, struct perf_cpu_map *cpus,
struct perf_thread_map *threads);
LIBPERF_API void perf_evsel__close(struct perf_evsel *evsel);
-LIBPERF_API void perf_evsel__close_cpu(struct perf_evsel *evsel, int cpu);
+LIBPERF_API void perf_evsel__close_cpu(struct perf_evsel *evsel, int cpu_map_idx);
LIBPERF_API int perf_evsel__mmap(struct perf_evsel *evsel, int pages);
LIBPERF_API void perf_evsel__munmap(struct perf_evsel *evsel);
-LIBPERF_API void *perf_evsel__mmap_base(struct perf_evsel *evsel, int cpu, int thread);
-LIBPERF_API int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
+LIBPERF_API void *perf_evsel__mmap_base(struct perf_evsel *evsel, int cpu_map_idx, int thread);
+LIBPERF_API int perf_evsel__read(struct perf_evsel *evsel, int cpu_map_idx, int thread,
struct perf_counts_values *count);
LIBPERF_API int perf_evsel__enable(struct perf_evsel *evsel);
-LIBPERF_API int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu);
+LIBPERF_API int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx);
LIBPERF_API int perf_evsel__disable(struct perf_evsel *evsel);
-LIBPERF_API int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu);
+LIBPERF_API int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu_map_idx);
LIBPERF_API struct perf_cpu_map *perf_evsel__cpus(struct perf_evsel *evsel);
LIBPERF_API struct perf_thread_map *perf_evsel__threads(struct perf_evsel *evsel);
LIBPERF_API struct perf_event_attr *perf_evsel__attr(struct perf_evsel *evsel);
--
2.34.1.448.ga2b2bfdf31-goog
next prev parent reply other threads:[~2022-01-05 6:15 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-05 6:13 [PATCH v4 00/48] Refactor perf cpumap Ian Rogers
2022-01-05 6:13 ` [PATCH v4 01/48] libperf: Add comments to perf_cpu_map Ian Rogers
2022-01-10 17:00 ` John Garry
2022-01-12 5:35 ` kajoljain
2022-01-05 6:13 ` [PATCH v4 02/48] perf stat: Add aggr creators that are passed a cpu Ian Rogers
2022-01-10 17:10 ` John Garry
2022-01-10 17:36 ` Ian Rogers
2022-01-10 17:51 ` John Garry
2022-01-10 18:52 ` Arnaldo Carvalho de Melo
2022-01-10 18:53 ` Arnaldo Carvalho de Melo
2022-01-10 18:56 ` Arnaldo Carvalho de Melo
2022-01-10 19:17 ` John Garry
2022-01-11 19:33 ` Arnaldo Carvalho de Melo
2022-01-11 19:36 ` Ian Rogers
2022-01-11 19:56 ` Arnaldo Carvalho de Melo
2022-01-11 19:49 ` Arnaldo Carvalho de Melo
2022-01-05 6:13 ` [PATCH v4 03/48] perf stat: Correct aggregation CPU map Ian Rogers
2022-01-10 18:43 ` John Garry
2022-01-05 6:13 ` [PATCH v4 04/48] perf stat: Switch aggregation to use for_each loop Ian Rogers
2022-01-10 18:50 ` John Garry
2022-01-10 22:22 ` Ian Rogers
2022-01-05 6:13 ` [PATCH v4 05/48] perf stat: Switch to cpu version of cpu_map__get Ian Rogers
2022-01-10 19:04 ` John Garry
2022-01-11 18:46 ` Ian Rogers
2022-01-11 18:50 ` Arnaldo Carvalho de Melo
2022-01-05 6:13 ` [PATCH v4 06/48] perf cpumap: Switch cpu_map__build_map to cpu function Ian Rogers
2022-01-05 6:13 ` [PATCH v4 07/48] perf cpumap: Remove map+index get_socket Ian Rogers
2022-01-05 6:13 ` [PATCH v4 08/48] perf cpumap: Remove map+index get_die Ian Rogers
2022-01-05 6:13 ` [PATCH v4 09/48] perf cpumap: Remove map+index get_core Ian Rogers
2022-01-05 6:13 ` [PATCH v4 10/48] perf cpumap: Remove map+index get_node Ian Rogers
2022-01-05 6:13 ` [PATCH v4 11/48] perf cpumap: Add comments to aggr_cpu_id Ian Rogers
2022-01-05 6:13 ` [PATCH v4 12/48] perf cpumap: Remove unused cpu_map__socket Ian Rogers
2022-01-05 6:13 ` [PATCH v4 13/48] perf cpumap: Simplify equal function name Ian Rogers
2022-01-05 6:13 ` [PATCH v4 14/48] perf cpumap: Rename empty functions Ian Rogers
2022-01-05 6:13 ` [PATCH v4 15/48] perf cpumap: Document cpu__get_node and remove redundant function Ian Rogers
2022-01-05 6:13 ` [PATCH v4 16/48] perf cpumap: Remove map from function names that don't use a map Ian Rogers
2022-01-05 6:13 ` [PATCH v4 17/48] perf cpumap: Remove cpu_map__cpu, use libperf function Ian Rogers
2022-01-10 19:02 ` Arnaldo Carvalho de Melo
2022-01-10 19:04 ` Arnaldo Carvalho de Melo
2022-01-10 19:06 ` Arnaldo Carvalho de Melo
2022-01-05 6:13 ` [PATCH v4 18/48] perf cpumap: Refactor cpu_map__build_map Ian Rogers
2022-01-05 6:13 ` [PATCH v4 19/48] perf cpumap: Rename cpu_map__get_X_aggr_by_cpu functions Ian Rogers
2022-01-05 6:13 ` [PATCH v4 20/48] perf cpumap: Move 'has' function to libperf Ian Rogers
2022-01-05 6:13 ` [PATCH v4 21/48] perf cpumap: Add some comments to cpu_aggr_map Ian Rogers
2022-01-05 6:13 ` [PATCH v4 22/48] perf cpumap: Trim the cpu_aggr_map Ian Rogers
2022-01-05 6:13 ` [PATCH v4 23/48] perf stat: Fix memory leak in check_per_pkg Ian Rogers
2022-01-05 6:13 ` [PATCH v4 24/48] perf cpumap: Add CPU to aggr_cpu_id Ian Rogers
2022-01-05 6:13 ` [PATCH v4 25/48] perf stat-display: Avoid use of core for CPU Ian Rogers
2022-01-05 6:13 ` [PATCH v4 26/48] perf evsel: Derive CPUs and threads in alloc_counts Ian Rogers
2022-01-09 18:30 ` Jiri Olsa
2022-01-10 5:49 ` Ian Rogers
2022-01-05 6:13 ` Ian Rogers [this message]
2022-01-05 6:13 ` [PATCH v4 28/48] libperf: Use cpu not index for evsel mmap Ian Rogers
2022-01-05 6:13 ` [PATCH v4 29/48] perf counts: Switch name cpu to cpu_map_idx Ian Rogers
2022-01-05 6:13 ` [PATCH v4 30/48] perf stat: Rename aggr_data cpu to imply it's an index Ian Rogers
2022-01-05 6:13 ` [PATCH v4 31/48] perf stat: Use perf_cpu_map__for_each_cpu Ian Rogers
2022-01-05 6:13 ` [PATCH v4 32/48] perf script: Use for each cpu to aid readability Ian Rogers
2022-01-05 6:13 ` [PATCH v4 33/48] libperf: Allow NULL in perf_cpu_map__idx Ian Rogers
2022-01-05 6:13 ` [PATCH v4 34/48] perf evlist: Refactor evlist__for_each_cpu Ian Rogers
2022-01-05 6:13 ` [PATCH v4 35/48] perf evsel: Pass cpu not cpu map index to synthesize Ian Rogers
2022-01-05 6:13 ` [PATCH v4 36/48] perf stat: Correct variable name for read counter Ian Rogers
2022-01-05 6:13 ` [PATCH v4 37/48] perf evsel: Rename CPU around get_group_fd Ian Rogers
2022-01-05 6:13 ` [PATCH v4 38/48] perf evsel: Reduce scope of evsel__ignore_missing_thread Ian Rogers
2022-01-05 6:13 ` [PATCH v4 39/48] perf evsel: Rename variable cpu to index Ian Rogers
2022-01-05 6:13 ` [PATCH v4 40/48] perf test: Use perf_cpu_map__for_each_cpu Ian Rogers
2022-01-05 6:13 ` [PATCH v4 41/48] perf stat: Correct check_per_pkg cpu Ian Rogers
2022-01-05 6:13 ` [PATCH v4 42/48] perf stat: Swap variable name cpu to index Ian Rogers
2022-01-05 6:13 ` [PATCH v4 43/48] libperf: Sync evsel documentation Ian Rogers
2022-01-05 6:13 ` [PATCH v4 44/48] perf bpf: Rename cpu to cpu_map_idx Ian Rogers
2022-01-10 19:10 ` Arnaldo Carvalho de Melo
2022-01-10 19:26 ` Arnaldo Carvalho de Melo
2022-01-05 6:13 ` [PATCH v4 45/48] perf c2c: Use more intention revealing iterator Ian Rogers
2022-01-05 6:13 ` [PATCH v4 46/48] perf script: Fix flipped index and cpu Ian Rogers
2022-01-05 6:13 ` [PATCH v4 47/48] perf stat: Correct first_shadow_cpu to return index Ian Rogers
2022-01-05 6:13 ` [PATCH v4 48/48] perf cpumap: Give CPUs their own type Ian Rogers
2022-01-09 18:30 ` Jiri Olsa
2022-01-10 5:45 ` Ian Rogers
2022-01-10 19:50 ` Arnaldo Carvalho de Melo
2022-01-11 19:16 ` Ian Rogers
2022-01-11 20:01 ` Arnaldo Carvalho de Melo
2022-01-11 20:47 ` Arnaldo Carvalho de Melo
2022-01-12 17:39 ` Arnaldo Carvalho de Melo
2022-01-12 18:02 ` Ian Rogers
2022-01-10 20:17 ` [PATCH v4 00/48] Refactor perf cpumap Arnaldo Carvalho de Melo
2022-01-10 20:40 ` Arnaldo Carvalho de Melo
2022-01-10 20:42 ` Arnaldo Carvalho de Melo
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