| Message ID | 20250523072239.181371-1-qiwu.chen@transsion.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] cpuidle: add tracepoint for s2idle flow | expand |
On Fri, May 23, 2025 at 9:22 AM qiwu.chen <qiwuchen55@gmail.com> wrote: > > Add the tracepoint cpu_idle in enter_s2idle_proper() for tracing > the s2idle enter and exit events with a determined idle state. > > Signed-off-by: qiwu.chen <qiwu.chen@transsion.com> > > Changes in v2: > - fix the build warning reported by kernel test robot in v1: > https://lore.kernel.org/all/20250520030922.9505-1-qiwu.chen@transsion.com/ > --- > drivers/cpuidle/cpuidle.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c > index 0835da449db8..9dca6a63e4ad 100644 > --- a/drivers/cpuidle/cpuidle.c > +++ b/drivers/cpuidle/cpuidle.c > @@ -149,6 +149,7 @@ static noinstr void enter_s2idle_proper(struct cpuidle_driver *drv, > > instrumentation_begin(); > > + trace_cpu_idle(index, dev->cpu); > time_start = ns_to_ktime(local_clock_noinstr()); > > tick_freeze(); > @@ -174,6 +175,7 @@ static noinstr void enter_s2idle_proper(struct cpuidle_driver *drv, > start_critical_timings(); > > time_end = ns_to_ktime(local_clock_noinstr()); > + trace_cpu_idle(PWR_EVENT_EXIT, dev->cpu); > > dev->states_usage[index].s2idle_time += ktime_us_delta(time_end, time_start); > dev->states_usage[index].s2idle_usage++; > -- This is a bit too late for 6.16, please resubmit when 6.16-rc1 is released. Thanks!
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 0835da449db8..9dca6a63e4ad 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -149,6 +149,7 @@ static noinstr void enter_s2idle_proper(struct cpuidle_driver *drv, instrumentation_begin(); + trace_cpu_idle(index, dev->cpu); time_start = ns_to_ktime(local_clock_noinstr()); tick_freeze(); @@ -174,6 +175,7 @@ static noinstr void enter_s2idle_proper(struct cpuidle_driver *drv, start_critical_timings(); time_end = ns_to_ktime(local_clock_noinstr()); + trace_cpu_idle(PWR_EVENT_EXIT, dev->cpu); dev->states_usage[index].s2idle_time += ktime_us_delta(time_end, time_start); dev->states_usage[index].s2idle_usage++;
Add the tracepoint cpu_idle in enter_s2idle_proper() for tracing the s2idle enter and exit events with a determined idle state. Signed-off-by: qiwu.chen <qiwu.chen@transsion.com> Changes in v2: - fix the build warning reported by kernel test robot in v1: https://lore.kernel.org/all/20250520030922.9505-1-qiwu.chen@transsion.com/ --- drivers/cpuidle/cpuidle.c | 2 ++ 1 file changed, 2 insertions(+)