[PATCH 1/8] drm/scheduler: properly forward fence errors
Deucher, Alexander
Alexander.Deucher at amd.com
Fri Apr 21 13:40:24 UTC 2023
[AMD Official Use Only - General]
Sure. We can pull it into amd-staging-drm-next as well if we need it for any customers in the short term.
Alex
________________________________
From: Christian König <ckoenig.leichtzumerken at gmail.com>
Sent: Friday, April 21, 2023 9:27 AM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>; Deucher, Alexander <Alexander.Deucher at amd.com>
Cc: Tuikov, Luben <Luben.Tuikov at amd.com>
Subject: Re: [PATCH 1/8] drm/scheduler: properly forward fence errors
Alex can I merge that through drm-misc-next or do we really need
amd-staging-drm-next?
Christian.
Am 21.04.23 um 07:22 schrieb Luben Tuikov:
> Hi Christian,
>
> Thanks for working on this.
>
> Series is,
> Reviewed-by: Luben Tuikov <luben.tuikov at amd.com>
>
> Regards,
> Luben
>
> On 2023-04-20 07:57, Christian König wrote:
>> When a hw fence is signaled with an error properly forward that to the
>> finished fence.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
>> ---
>> drivers/gpu/drm/scheduler/sched_entity.c | 4 +---
>> drivers/gpu/drm/scheduler/sched_fence.c | 4 +++-
>> drivers/gpu/drm/scheduler/sched_main.c | 18 ++++++++----------
>> include/drm/gpu_scheduler.h | 2 +-
>> 4 files changed, 13 insertions(+), 15 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c
>> index 15d04a0ec623..eaf71fe15ed3 100644
>> --- a/drivers/gpu/drm/scheduler/sched_entity.c
>> +++ b/drivers/gpu/drm/scheduler/sched_entity.c
>> @@ -144,7 +144,7 @@ static void drm_sched_entity_kill_jobs_work(struct work_struct *wrk)
>> {
>> struct drm_sched_job *job = container_of(wrk, typeof(*job), work);
>>
>> - drm_sched_fence_finished(job->s_fence);
>> + drm_sched_fence_finished(job->s_fence, -ESRCH);
>> WARN_ON(job->s_fence->parent);
>> job->sched->ops->free_job(job);
>> }
>> @@ -195,8 +195,6 @@ static void drm_sched_entity_kill(struct drm_sched_entity *entity)
>> while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) {
>> struct drm_sched_fence *s_fence = job->s_fence;
>>
>> - dma_fence_set_error(&s_fence->finished, -ESRCH);
>> -
>> dma_fence_get(&s_fence->finished);
>> if (!prev || dma_fence_add_callback(prev, &job->finish_cb,
>> drm_sched_entity_kill_jobs_cb))
>> diff --git a/drivers/gpu/drm/scheduler/sched_fence.c b/drivers/gpu/drm/scheduler/sched_fence.c
>> index 7fd869520ef2..1a6bea98c5cc 100644
>> --- a/drivers/gpu/drm/scheduler/sched_fence.c
>> +++ b/drivers/gpu/drm/scheduler/sched_fence.c
>> @@ -53,8 +53,10 @@ void drm_sched_fence_scheduled(struct drm_sched_fence *fence)
>> dma_fence_signal(&fence->scheduled);
>> }
>>
>> -void drm_sched_fence_finished(struct drm_sched_fence *fence)
>> +void drm_sched_fence_finished(struct drm_sched_fence *fence, int result)
>> {
>> + if (result)
>> + dma_fence_set_error(&fence->finished, result);
>> dma_fence_signal(&fence->finished);
>> }
>>
>> diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
>> index fcd4bfef7415..649fac2e1ccb 100644
>> --- a/drivers/gpu/drm/scheduler/sched_main.c
>> +++ b/drivers/gpu/drm/scheduler/sched_main.c
>> @@ -257,7 +257,7 @@ drm_sched_rq_select_entity_fifo(struct drm_sched_rq *rq)
>> *
>> * Finish the job's fence and wake up the worker thread.
>> */
>> -static void drm_sched_job_done(struct drm_sched_job *s_job)
>> +static void drm_sched_job_done(struct drm_sched_job *s_job, int result)
>> {
>> struct drm_sched_fence *s_fence = s_job->s_fence;
>> struct drm_gpu_scheduler *sched = s_fence->sched;
>> @@ -268,7 +268,7 @@ static void drm_sched_job_done(struct drm_sched_job *s_job)
>> trace_drm_sched_process_job(s_fence);
>>
>> dma_fence_get(&s_fence->finished);
>> - drm_sched_fence_finished(s_fence);
>> + drm_sched_fence_finished(s_fence, result);
>> dma_fence_put(&s_fence->finished);
>> wake_up_interruptible(&sched->wake_up_worker);
>> }
>> @@ -282,7 +282,7 @@ static void drm_sched_job_done_cb(struct dma_fence *f, struct dma_fence_cb *cb)
>> {
>> struct drm_sched_job *s_job = container_of(cb, struct drm_sched_job, cb);
>>
>> - drm_sched_job_done(s_job);
>> + drm_sched_job_done(s_job, f->error);
>> }
>>
>> /**
>> @@ -533,12 +533,12 @@ void drm_sched_start(struct drm_gpu_scheduler *sched, bool full_recovery)
>> r = dma_fence_add_callback(fence, &s_job->cb,
>> drm_sched_job_done_cb);
>> if (r == -ENOENT)
>> - drm_sched_job_done(s_job);
>> + drm_sched_job_done(s_job, fence->error);
>> else if (r)
>> DRM_DEV_ERROR(sched->dev, "fence add callback failed (%d)\n",
>> r);
>> } else
>> - drm_sched_job_done(s_job);
>> + drm_sched_job_done(s_job, 0);
>> }
>>
>> if (full_recovery) {
>> @@ -1010,15 +1010,13 @@ static int drm_sched_main(void *param)
>> r = dma_fence_add_callback(fence, &sched_job->cb,
>> drm_sched_job_done_cb);
>> if (r == -ENOENT)
>> - drm_sched_job_done(sched_job);
>> + drm_sched_job_done(sched_job, fence->error);
>> else if (r)
>> DRM_DEV_ERROR(sched->dev, "fence add callback failed (%d)\n",
>> r);
>> } else {
>> - if (IS_ERR(fence))
>> - dma_fence_set_error(&s_fence->finished, PTR_ERR(fence));
>> -
>> - drm_sched_job_done(sched_job);
>> + drm_sched_job_done(sched_job, IS_ERR(fence) ?
>> + PTR_ERR(fence) : 0);
>> }
>>
>> wake_up(&sched->job_scheduled);
>> diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
>> index ca857ec9e7eb..5c1df6b12ced 100644
>> --- a/include/drm/gpu_scheduler.h
>> +++ b/include/drm/gpu_scheduler.h
>> @@ -569,7 +569,7 @@ void drm_sched_fence_init(struct drm_sched_fence *fence,
>> void drm_sched_fence_free(struct drm_sched_fence *fence);
>>
>> void drm_sched_fence_scheduled(struct drm_sched_fence *fence);
>> -void drm_sched_fence_finished(struct drm_sched_fence *fence);
>> +void drm_sched_fence_finished(struct drm_sched_fence *fence, int result);
>>
>> unsigned long drm_sched_suspend_timeout(struct drm_gpu_scheduler *sched);
>> void drm_sched_resume_timeout(struct drm_gpu_scheduler *sched,
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