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| author | Dirk Brandewie <dirk.j.brandewie@intel.com> | 2014-01-16 10:32:25 -0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-01-17 02:00:44 +0100 |
| commit | b69880f9ccf7e13b2e2cb38f49a2451d7aa548b3 (patch) | |
| tree | 65f402f165b9b4f33ccac597202a82acfe845bdf /include/trace | |
| parent | 652ed95d5fa6074b3c4ea245deb0691f1acb6656 (diff) | |
| download | linux-stable-b69880f9ccf7e13b2e2cb38f49a2451d7aa548b3.tar.gz linux-stable-b69880f9ccf7e13b2e2cb38f49a2451d7aa548b3.tar.bz2 linux-stable-b69880f9ccf7e13b2e2cb38f49a2451d7aa548b3.zip | |
intel_pstate: Add trace point to report internal state.
Add perf trace event "power:pstate_sample" to report driver state to
aid in diagnosing issues reported against intel_pstate.
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/power.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/trace/events/power.h b/include/trace/events/power.h index cda100d6762d..9e9475c85de5 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -35,6 +35,59 @@ DEFINE_EVENT(cpu, cpu_idle, TP_ARGS(state, cpu_id) ); +TRACE_EVENT(pstate_sample, + + TP_PROTO(u32 core_busy, + u32 scaled_busy, + u32 state, + u64 mperf, + u64 aperf, + u32 energy, + u32 freq + ), + + TP_ARGS(core_busy, + scaled_busy, + state, + mperf, + aperf, + energy, + freq + ), + + TP_STRUCT__entry( + __field(u32, core_busy) + __field(u32, scaled_busy) + __field(u32, state) + __field(u64, mperf) + __field(u64, aperf) + __field(u32, energy) + __field(u32, freq) + + ), + + TP_fast_assign( + __entry->core_busy = core_busy; + __entry->scaled_busy = scaled_busy; + __entry->state = state; + __entry->mperf = mperf; + __entry->aperf = aperf; + __entry->energy = energy; + __entry->freq = freq; + ), + + TP_printk("core_busy=%lu scaled=%lu state=%lu mperf=%llu aperf=%llu energy=%lu freq=%lu ", + (unsigned long)__entry->core_busy, + (unsigned long)__entry->scaled_busy, + (unsigned long)__entry->state, + (unsigned long long)__entry->mperf, + (unsigned long long)__entry->aperf, + (unsigned long)__entry->energy, + (unsigned long)__entry->freq + ) + +); + /* This file can get included multiple times, TRACE_HEADER_MULTI_READ at top */ #ifndef _PWR_EVENT_AVOID_DOUBLE_DEFINING #define _PWR_EVENT_AVOID_DOUBLE_DEFINING |