[PATCH v6 3/5] cpufreq: powernv/tracing: Add powernv_throttle tracepoint

[Shilpasri G Bhat]

This patch adds the powernv_throttle tracepoint to trace the CPU
frequency throttling event, which is used by the powernv-cpufreq
driver in POWER8.

Signed-off-by: Shilpasri G Bhat 
Reviewed-by: Gautham R. Shenoy 
CC: Ingo Molnar 
CC: Steven Rostedt 
---
No changes since v2.

 include/trace/events/power.h | 22 ++
 kernel/trace/power-traces.c  |  1 +
 2 files changed, 23 insertions(+)

diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 284244e..19e5030 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -38,6 +38,28 @@ DEFINE_EVENT(cpu, cpu_idle,
TP_ARGS(state, cpu_id)
 );
 
+TRACE_EVENT(powernv_throttle,
+
+   TP_PROTO(int chip_id, const char *reason, int pmax),
+
+   TP_ARGS(chip_id, reason, pmax),
+
+   TP_STRUCT__entry(
+   __field(int, chip_id)
+   __string(reason, reason)
+   __field(int, pmax)
+   ),
+
+   TP_fast_assign(
+   __entry->chip_id = chip_id;
+   __assign_str(reason, reason);
+   __entry->pmax = pmax;
+   ),
+
+   TP_printk("Chip %d Pmax %d %s", __entry->chip_id,
+ __entry->pmax, __get_str(reason))
+);
+
 TRACE_EVENT(pstate_sample,
 
TP_PROTO(u32 core_busy,
diff --git a/kernel/trace/power-traces.c b/kernel/trace/power-traces.c
index eb4220a..81b8745 100644
--- a/kernel/trace/power-traces.c
+++ b/kernel/trace/power-traces.c
@@ -15,4 +15,5 @@
 
 EXPORT_TRACEPOINT_SYMBOL_GPL(suspend_resume);
 EXPORT_TRACEPOINT_SYMBOL_GPL(cpu_idle);
+EXPORT_TRACEPOINT_SYMBOL_GPL(powernv_throttle);
 
-- 
1.9.3

[PATCH v6 3/5] cpufreq: powernv/tracing: Add powernv_throttle tracepoint

[Shilpasri G Bhat]

This patch adds the powernv_throttle tracepoint to trace the CPU
frequency throttling event, which is used by the powernv-cpufreq
driver in POWER8.

Signed-off-by: Shilpasri G Bhat 
Reviewed-by: Gautham R. Shenoy 
CC: Ingo Molnar 
CC: Steven Rostedt 
---
No changes since v2.

 include/trace/events/power.h | 22 ++
 kernel/trace/power-traces.c  |  1 +
 2 files changed, 23 insertions(+)

diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 284244e..19e5030 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -38,6 +38,28 @@ DEFINE_EVENT(cpu, cpu_idle,
TP_ARGS(state, cpu_id)
 );
 
+TRACE_EVENT(powernv_throttle,
+
+   TP_PROTO(int chip_id, const char *reason, int pmax),
+
+   TP_ARGS(chip_id, reason, pmax),
+
+   TP_STRUCT__entry(
+   __field(int, chip_id)
+   __string(reason, reason)
+   __field(int, pmax)
+   ),
+
+   TP_fast_assign(
+   __entry->chip_id = chip_id;
+   __assign_str(reason, reason);
+   __entry->pmax = pmax;
+   ),
+
+   TP_printk("Chip %d Pmax %d %s", __entry->chip_id,
+ __entry->pmax, __get_str(reason))
+);
+
 TRACE_EVENT(pstate_sample,
 
TP_PROTO(u32 core_busy,
diff --git a/kernel/trace/power-traces.c b/kernel/trace/power-traces.c
index eb4220a..81b8745 100644
--- a/kernel/trace/power-traces.c
+++ b/kernel/trace/power-traces.c
@@ -15,4 +15,5 @@
 
 EXPORT_TRACEPOINT_SYMBOL_GPL(suspend_resume);
 EXPORT_TRACEPOINT_SYMBOL_GPL(cpu_idle);
+EXPORT_TRACEPOINT_SYMBOL_GPL(powernv_throttle);
 
-- 
1.9.3