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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2019-11-15 14:42:22 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-11-22 10:48:13 -0300 |
| commit | a1ac7de6902c1ea6def7a743f1d2e6ba429684b3 (patch) | |
| tree | 72dc84300aecc0f847d35eda9a80fc42d09a16bd /tools/perf/util/evsel.c | |
| parent | perf auxtrace: Add support for queuing AUX area samples (diff) | |
| download | linux-dev-a1ac7de6902c1ea6def7a743f1d2e6ba429684b3.tar.xz linux-dev-a1ac7de6902c1ea6def7a743f1d2e6ba429684b3.zip | |
perf pmu: When using default config, record which bits of config were changed by the user
Default config for a PMU is defined before selected events are parsed.
That allows the user-entered config to override the default config.
However that does not allow for changing the default config based on
other options.
For example, if the user chooses AUX area sampling mode, in the case of
Intel PT, the psb_period needs to be small for sampling, so there is a
need to set the default psb_period to 0 (2 KiB) in that case. However
that should not override a value set by the user. To allow for that,
when using default config, record which bits of config were changed by
the user.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20191115124225.5247-13-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index ad7665a546cf..f4dea055b080 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -849,6 +849,8 @@ static void apply_config_terms(struct evsel *evsel, case PERF_EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE: /* Already applied by auxtrace */ break; + case PERF_EVSEL__CONFIG_TERM_CFG_CHG: + break; default: break; } |