diff options
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 6 | ||||
| -rw-r--r-- | include/trace/events/power.h | 22 |
2 files changed, 27 insertions, 1 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index ef2ea1b12cd8..bf57cab32456 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -8,6 +8,7 @@ * This code is licenced under the GPL. */ +#include "linux/percpu-defs.h" #include <linux/clockchips.h> #include <linux/kernel.h> #include <linux/mutex.h> @@ -278,6 +279,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv, /* Shallower states are enabled, so update. */ dev->states_usage[entered_state].above++; + trace_cpu_idle_miss(dev->cpu, entered_state, false); break; } } else if (diff > delay) { @@ -289,8 +291,10 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv, * Update if a deeper state would have been a * better match for the observed idle duration. */ - if (diff - delay >= drv->states[i].target_residency_ns) + if (diff - delay >= drv->states[i].target_residency_ns) { dev->states_usage[entered_state].below++; + trace_cpu_idle_miss(dev->cpu, entered_state, true); + } break; } diff --git a/include/trace/events/power.h b/include/trace/events/power.h index c708521e4ed5..77f14f7a11d4 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -40,6 +40,28 @@ DEFINE_EVENT(cpu, cpu_idle, TP_ARGS(state, cpu_id) ); +TRACE_EVENT(cpu_idle_miss, + + TP_PROTO(unsigned int cpu_id, unsigned int state, bool below), + + TP_ARGS(cpu_id, state, below), + + TP_STRUCT__entry( + __field(u32, cpu_id) + __field(u32, state) + __field(bool, below) + ), + + TP_fast_assign( + __entry->cpu_id = cpu_id; + __entry->state = state; + __entry->below = below; + ), + + TP_printk("cpu_id=%lu state=%lu type=%s", (unsigned long)__entry->cpu_id, + (unsigned long)__entry->state, (__entry->below)?"below":"above") +); + TRACE_EVENT(powernv_throttle, TP_PROTO(int chip_id, const char *reason, int pmax), |