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authorDirk Brandewie <dirk.j.brandewie@intel.com>2014-01-16 10:32:25 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-17 02:00:44 +0100
commitb69880f9ccf7e13b2e2cb38f49a2451d7aa548b3 (patch)
tree65f402f165b9b4f33ccac597202a82acfe845bdf /include/trace
parent652ed95d5fa6074b3c4ea245deb0691f1acb6656 (diff)
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.h53
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

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