diff options
| author |   Jiri Olsa <jolsa@kernel.org> | 2019-09-03 11:01:04 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-09-25 09:51:48 -0300 |
| commit | b0031c22819ab606a0cb648c0f0a7d80db3c3a89 (patch) | |
| tree | 0ca1492189ab6d76d6ddb62a0f02b5c37329cec4 /tools/perf/lib | |
| parent | libperf: Add perf_evlist__read_format() function (diff) | |
| download | linux-dev-b0031c22819ab606a0cb648c0f0a7d80db3c3a89.tar.xz linux-dev-b0031c22819ab606a0cb648c0f0a7d80db3c3a89.zip | |
libperf: Add perf_evlist__id_add() function
Add the perf_evlist__id_add() function to libperf as an internal
function. We already have the 'heads' member in 'struct perf_evlist'.
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 <a.p.zijlstra@chello.nl>
Link: http://lore.kernel.org/lkml/20190913132355.21634-31-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 | 26 | ||||
| -rw-r--r-- | tools/perf/lib/include/internal/evlist.h | 4 |
2 files changed, 30 insertions, 0 deletions
diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c index ae861bf38976..a29ee8a746d9 100644 --- a/tools/perf/lib/evlist.c +++ b/tools/perf/lib/evlist.c @@ -1,9 +1,12 @@ // SPDX-License-Identifier: GPL-2.0 #include <perf/evlist.h> #include <perf/evsel.h> +#include <linux/bitops.h> #include <linux/list.h> +#include <linux/hash.h> #include <internal/evlist.h> #include <internal/evsel.h> +#include <internal/xyarray.h> #include <linux/zalloc.h> #include <stdlib.h> #include <perf/cpumap.h> @@ -168,3 +171,26 @@ u64 perf_evlist__read_format(struct perf_evlist *evlist) return first->attr.read_format; } + +#define SID(e, x, y) xyarray__entry(e->sample_id, x, y) + +static void perf_evlist__id_hash(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, u64 id) +{ + int hash; + struct perf_sample_id *sid = SID(evsel, cpu, thread); + + sid->id = id; + sid->evsel = evsel; + hash = hash_64(sid->id, PERF_EVLIST__HLIST_BITS); + hlist_add_head(&sid->node, &evlist->heads[hash]); +} + +void perf_evlist__id_add(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, u64 id) +{ + perf_evlist__id_hash(evlist, evsel, cpu, thread, id); + evsel->id[evsel->ids++] = id; +} diff --git a/tools/perf/lib/include/internal/evlist.h b/tools/perf/lib/include/internal/evlist.h index 63516fe14f4c..649406f717bc 100644 --- a/tools/perf/lib/include/internal/evlist.h +++ b/tools/perf/lib/include/internal/evlist.h @@ -68,4 +68,8 @@ static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist) u64 perf_evlist__read_format(struct perf_evlist *evlist); +void perf_evlist__id_add(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int cpu, int thread, u64 id); + #endif /* __LIBPERF_INTERNAL_EVLIST_H */ |