diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2019-10-07 14:53:24 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-10-10 12:21:11 -0300 |
| commit | 3a8bb58121987a8405d6f96cd8815025e564605d (patch) | |
| tree | edced8d0ff9b881bfe569d7bbdd9b2d472520c86 /tools/perf/lib | |
| parent | 1fcbb75cc574072ab457dbbaa74fc7064b691e86 (diff) | |
libperf: Add perf_evlist_mmap_ops::get callback
Add the perf_evlist_mmap_ops::get callback to be called in
mmap_per_evsel() to get/allocate the 'struct perf_mmap' object.
Add the libperf's perf_evlist__mmap_cb_get() function as libperf's get
callback.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20191007125344.14268-17-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/lib')
| -rw-r--r-- | tools/perf/lib/evlist.c | 18 | ||||
| -rw-r--r-- | tools/perf/lib/include/internal/evlist.h | 3 |
2 files changed, 13 insertions, 8 deletions
diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c index 3832d3e9a3b4..4f49de5e8f7c 100644 --- a/tools/perf/lib/evlist.c +++ b/tools/perf/lib/evlist.c @@ -340,7 +340,7 @@ static void perf_evlist__set_sid_idx(struct perf_evlist *evlist, } static struct perf_mmap* -perf_evlist__map_get(struct perf_evlist *evlist, bool overwrite, int idx) +perf_evlist__mmap_cb_get(struct perf_evlist *evlist, bool overwrite, int idx) { struct perf_mmap *map = &evlist->mmap[idx]; @@ -359,8 +359,8 @@ perf_evlist__map_get(struct perf_evlist *evlist, bool overwrite, int idx) #define FD(e, x, y) (*(int *) xyarray__entry(e->fd, x, y)) static int -mmap_per_evsel(struct perf_evlist *evlist, int idx, - struct perf_mmap_param *mp, int cpu_idx, +mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops, + int idx, struct perf_mmap_param *mp, int cpu_idx, int thread, int *_output, int *_output_overwrite) { int evlist_cpu = perf_cpu_map__cpu(evlist->cpus, cpu_idx); @@ -379,7 +379,7 @@ mmap_per_evsel(struct perf_evlist *evlist, int idx, if (cpu == -1) continue; - map = perf_evlist__map_get(evlist, overwrite, idx); + map = ops->get(evlist, overwrite, idx); if (map == NULL) return -ENOMEM; @@ -439,7 +439,7 @@ mmap_per_thread(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops, if (ops->idx) ops->idx(evlist, mp, thread, false); - if (mmap_per_evsel(evlist, thread, mp, 0, thread, + if (mmap_per_evsel(evlist, ops, thread, mp, 0, thread, &output, &output_overwrite)) goto out_unmap; } @@ -467,7 +467,7 @@ mmap_per_cpu(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops, ops->idx(evlist, mp, cpu, true); for (thread = 0; thread < nr_threads; thread++) { - if (mmap_per_evsel(evlist, cpu, mp, cpu, + if (mmap_per_evsel(evlist, ops, cpu, mp, cpu, thread, &output, &output_overwrite)) goto out_unmap; } @@ -488,7 +488,7 @@ int perf_evlist__mmap_ops(struct perf_evlist *evlist, const struct perf_cpu_map *cpus = evlist->cpus; const struct perf_thread_map *threads = evlist->threads; - if (!ops) + if (!ops || !ops->get) return -EINVAL; if (!evlist->mmap) @@ -512,7 +512,9 @@ int perf_evlist__mmap_ops(struct perf_evlist *evlist, int perf_evlist__mmap(struct perf_evlist *evlist, int pages) { struct perf_mmap_param mp; - struct perf_evlist_mmap_ops ops = { 0 }; + struct perf_evlist_mmap_ops ops = { + .get = perf_evlist__mmap_cb_get, + }; evlist->mmap_len = (pages + 1) * page_size; mp.mask = evlist->mmap_len - page_size - 1; diff --git a/tools/perf/lib/include/internal/evlist.h b/tools/perf/lib/include/internal/evlist.h index 053f620696f3..9bc3a21643ea 100644 --- a/tools/perf/lib/include/internal/evlist.h +++ b/tools/perf/lib/include/internal/evlist.h @@ -29,9 +29,12 @@ struct perf_evlist { typedef void (*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_mmap_param*, int, bool); +typedef struct perf_mmap* +(*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int); struct perf_evlist_mmap_ops { perf_evlist_mmap__cb_idx_t idx; + perf_evlist_mmap__cb_get_t get; }; int perf_evlist__alloc_pollfd(struct perf_evlist *evlist); |