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authorAdrian Hunter <adrian.hunter@intel.com>2019-11-15 14:42:22 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-11-22 10:48:13 -0300
commita1ac7de6902c1ea6def7a743f1d2e6ba429684b3 (patch)
tree72dc84300aecc0f847d35eda9a80fc42d09a16bd /tools/perf/util/pmu.h
parentperf auxtrace: Add support for queuing AUX area samples (diff)
downloadlinux-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 '')
-rw-r--r--tools/perf/util/pmu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 2eb7a7001307..6737e3d5d568 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -72,6 +72,7 @@ int perf_pmu__config_terms(struct list_head *formats,
struct list_head *head_terms,
bool zero, struct parse_events_error *error);
__u64 perf_pmu__format_bits(struct list_head *formats, const char *name);
+int perf_pmu__format_type(struct list_head *formats, const char *name);
int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
struct perf_pmu_info *info);
struct list_head *perf_pmu__alias(struct perf_pmu *pmu,