Messages in this thread Patch in this message | | | From | Alexander Shishkin <> | Subject | [PATCH v3 11/23] perf: Add itrace_config to the event attribute | Date | Mon, 11 Aug 2014 08:19:40 +0300 |
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To configure itrace events, we use a separate config field in the attribute, which can be used by normal and sampling counters. The latter will use config to specify the actual event and itrace_config for itrace configuration that will be used for sampling.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> --- include/linux/perf_event.h | 1 + include/uapi/linux/perf_event.h | 6 ++++++ 2 files changed, 7 insertions(+)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 94961c73e0..cb8c92e041 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -173,6 +173,7 @@ struct perf_event; #define PERF_PMU_CAP_AUX_NO_SG 0x02 #define PERF_PMU_CAP_AUX_SW_DOUBLEBUF 0x04 #define PERF_PMU_CAP_EXCLUSIVE 0x08 +#define PERF_PMU_CAP_ITRACE 0x10 /** * struct pmu - generic performance monitoring unit diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index 507b5e1f5b..b14b1f57c1 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -239,6 +239,7 @@ enum perf_event_read_format { #define PERF_ATTR_SIZE_VER3 96 /* add: sample_regs_user */ /* add: sample_stack_user */ /* add: aux_watermark */ +#define PERF_ATTR_SIZE_VER4 104 /* add: itrace_config */ /* * Hardware event_id to monitor via a performance monitoring event: @@ -337,6 +338,11 @@ struct perf_event_attr { * Wakeup watermark for AUX area */ __u32 aux_watermark; + + /* + * Itrace pmus' event config + */ + __u64 itrace_config; }; #define perf_flags(attr) (*(&(attr)->read_format + 1)) -- 2.1.0.rc1
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