diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2018-01-16 15:14:50 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-01-18 09:00:16 -0300 |
| commit | a10eb530ae497e2411525fc1f5ec73f39eb11c11 (patch) | |
| tree | e4ac2050ddcb21eef7b2d3ea5261a6dc0ecad50b /tools/perf | |
| parent | a72594ca5c70ef4a94fab8ad541beda0d0a94139 (diff) | |
| download | linux-stable-a10eb530ae497e2411525fc1f5ec73f39eb11c11.tar.gz linux-stable-a10eb530ae497e2411525fc1f5ec73f39eb11c11.tar.bz2 linux-stable-a10eb530ae497e2411525fc1f5ec73f39eb11c11.zip | |
perf intel-pt/bts: Do not swap when synthesizing samples
Both 'perf inject' and internal tools consume cpu endian samples, so
there is never a need to do any swapping when synthesizing samples.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1516108492-21401-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/intel-bts.c | 6 | ||||
| -rw-r--r-- | tools/perf/util/intel-pt.c | 11 |
2 files changed, 4 insertions, 13 deletions
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c index 5325e65f9711..7077bebc2fb0 100644 --- a/tools/perf/util/intel-bts.c +++ b/tools/perf/util/intel-bts.c @@ -67,7 +67,6 @@ struct intel_bts { u64 branches_sample_type; u64 branches_id; size_t branches_event_size; - bool synth_needs_swap; unsigned long num_events; }; @@ -303,8 +302,7 @@ static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq, event.sample.header.size = bts->branches_event_size; ret = perf_event__synthesize_sample(&event, bts->branches_sample_type, - 0, &sample, - bts->synth_needs_swap); + 0, &sample, false); if (ret) return ret; } @@ -841,8 +839,6 @@ static int intel_bts_synth_events(struct intel_bts *bts, __perf_evsel__sample_size(attr.sample_type); } - bts->synth_needs_swap = evsel->needs_swap; - return 0; } diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index 23f9ba676df0..2daf641beb85 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -104,8 +104,6 @@ struct intel_pt { u64 pwrx_id; u64 cbr_id; - bool synth_needs_swap; - u64 tsc_bit; u64 mtc_bit; u64 mtc_freq_bits; @@ -1101,11 +1099,10 @@ static void intel_pt_prep_b_sample(struct intel_pt *pt, } static int intel_pt_inject_event(union perf_event *event, - struct perf_sample *sample, u64 type, - bool swapped) + struct perf_sample *sample, u64 type) { event->header.size = perf_event__sample_event_size(sample, type, 0); - return perf_event__synthesize_sample(event, type, 0, sample, swapped); + return perf_event__synthesize_sample(event, type, 0, sample, false); } static inline int intel_pt_opt_inject(struct intel_pt *pt, @@ -1115,7 +1112,7 @@ static inline int intel_pt_opt_inject(struct intel_pt *pt, if (!pt->synth_opts.inject) return 0; - return intel_pt_inject_event(event, sample, type, pt->synth_needs_swap); + return intel_pt_inject_event(event, sample, type); } static int intel_pt_deliver_synth_b_event(struct intel_pt *pt, @@ -2329,8 +2326,6 @@ static int intel_pt_synth_events(struct intel_pt *pt, id += 1; } - pt->synth_needs_swap = evsel->needs_swap; - return 0; } |