On Fri, Mar 13, 2020 at 6:18 AM Christian König
<christian.koenig@xxxxxxx> wrote:
>
> Am 13.03.20 um 10:56 schrieb Lucas Stach:
> > From: Robert Beckett <bob.beckett@xxxxxxxxxxxxx>
> >
> > Add a new trace event to show when jobs are run on the HW.
> >
> > Signed-off-by: Robert Beckett <bob.beckett@xxxxxxxxxxxxx>
> > Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
>
> There is also the scheduled fence we could used for this, but this trace
> point adds a few extra fields which might be useful.
>
> Acked-by: Christian König <christian.koenig@xxxxxxx>
Applied. thanks!
Alex
>
> > ---
> > .../gpu/drm/scheduler/gpu_scheduler_trace.h | 27 +++++++++++++++++++
> > drivers/gpu/drm/scheduler/sched_main.c | 1 +
> > 2 files changed, 28 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h b/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
> > index d79086498aff..877ce9b127f1 100644
> > --- a/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
> > +++ b/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
> > @@ -59,6 +59,33 @@ TRACE_EVENT(drm_sched_job,
> > __entry->job_count, __entry->hw_job_count)
> > );
> >
> > +TRACE_EVENT(drm_run_job,
> > + TP_PROTO(struct drm_sched_job *sched_job, struct drm_sched_entity *entity),
> > + TP_ARGS(sched_job, entity),
> > + TP_STRUCT__entry(
> > + __field(struct drm_sched_entity *, entity)
> > + __field(struct dma_fence *, fence)
> > + __field(const char *, name)
> > + __field(uint64_t, id)
> > + __field(u32, job_count)
> > + __field(int, hw_job_count)
> > + ),
> > +
> > + TP_fast_assign(
> > + __entry->entity = entity;
> > + __entry->id = sched_job->id;
> > + __entry->fence = &sched_job->s_fence->finished;
> > + __entry->name = sched_job->sched->name;
> > + __entry->job_count = spsc_queue_count(&entity->job_queue);
> > + __entry->hw_job_count = atomic_read(
> > + &sched_job->sched->hw_rq_count);
> > + ),
> > + TP_printk("entity=%p, id=%llu, fence=%p, ring=%s, job count:%u, hw job count:%d",
> > + __entry->entity, __entry->id,
> > + __entry->fence, __entry->name,
> > + __entry->job_count, __entry->hw_job_count)
> > +);
> > +
> > TRACE_EVENT(drm_sched_process_job,
> > TP_PROTO(struct drm_sched_fence *fence),
> > TP_ARGS(fence),
> > diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
> > index 71ce6215956f..34231b7163cc 100644
> > --- a/drivers/gpu/drm/scheduler/sched_main.c
> > +++ b/drivers/gpu/drm/scheduler/sched_main.c
> > @@ -773,6 +773,7 @@ static int drm_sched_main(void *param)
> > atomic_inc(&sched->hw_rq_count);
> > drm_sched_job_begin(sched_job);
> >
> > + trace_drm_run_job(sched_job, entity);
> > fence = sched->ops->run_job(sched_job);
> > drm_sched_fence_scheduled(s_fence);
> >
>
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