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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2014-07-31 09:00:49 +0300 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-09-17 17:08:08 -0300 |
| commit | dc0a6202421170a6d8d2c6f5176575b3f60e0f85 (patch) | |
| tree | 42ff43dac280a0b92ef7af4f65148585836e0c8c /tools/perf/util/pmu.h | |
| parent | perf tools: Add perf-with-kcore script (diff) | |
| download | linux-dev-dc0a6202421170a6d8d2c6f5176575b3f60e0f85.tar.xz linux-dev-dc0a6202421170a6d8d2c6f5176575b3f60e0f85.zip | |
perf tools: Let default config be defined for a PMU
This allows default config terms to be provided for a PMU. So, for
example, when the Intel PT PMU is added, it will be possible to specify:
intel_pt//
which will be the same as:
intel_pt/tsc=1,noretcomp=0/
meaning that the trace should contain TSC timestamps and perform 'return
compression'.
An important consideration of this patch is that it must be possible to
overwrite the default values. That has meant changing the logic so that
a zero value can replace a non-zero value.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406786474-9306-7-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/pmu.h')
| -rw-r--r-- | tools/perf/util/pmu.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 1c1e2eecbe1f..413b9a63c38d 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -13,9 +13,12 @@ enum { #define PERF_PMU_FORMAT_BITS 64 +struct perf_event_attr; + struct perf_pmu { char *name; __u32 type; + struct perf_event_attr *default_config; struct cpu_map *cpus; struct list_head format; /* HEAD struct perf_pmu_format -> list */ struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */ @@ -27,7 +30,8 @@ int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr, struct list_head *head_terms); int perf_pmu__config_terms(struct list_head *formats, struct perf_event_attr *attr, - struct list_head *head_terms); + struct list_head *head_terms, + bool zero); int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms, const char **unit, double *scale); struct list_head *perf_pmu__alias(struct perf_pmu *pmu, @@ -46,4 +50,7 @@ void print_pmu_events(const char *event_glob, bool name_only); bool pmu_have_event(const char *pname, const char *name); int perf_pmu__test(void); + +struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu); + #endif /* __PMU_H */ |