[PATCH 1/2] drm/scheduler: Change scheduled fence track

Christian König ckoenig.leichtzumerken at gmail.com
Wed Apr 28 09:06:38 UTC 2021


Well none. As I said I will push this upstream through drm-misc-next.

Christian.

Am 28.04.21 um 10:32 schrieb Deng, Emily:
>
> [AMD Official Use Only - Internal Distribution Only]
>
>
> Hi Alex and Christian,
>
> What extra work Roy need to do about this patch? And fdinfo?
>
> Best wishes
>
> Emily Deng
>
> *From:* amd-gfx <amd-gfx-bounces at lists.freedesktop.org> *On Behalf Of 
> *Deucher, Alexander
> *Sent:* Tuesday, April 27, 2021 3:52 AM
> *To:* Christian König <ckoenig.leichtzumerken at gmail.com>
> *Cc:* Sun, Roy <Roy.Sun at amd.com>; amd-gfx list 
> <amd-gfx at lists.freedesktop.org>; Nieto, David M <David.Nieto at amd.com>
> *Subject:* Re: [PATCH 1/2] drm/scheduler: Change scheduled fence track
>
> [AMD Official Use Only - Internal Distribution Only]
>
> [AMD Official Use Only - Internal Distribution Only]
>
> Fair point. Either way works for me.
>
> Alex
>
> ------------------------------------------------------------------------
>
> *From:*Christian König <ckoenig.leichtzumerken at gmail.com 
> <mailto:ckoenig.leichtzumerken at gmail.com>>
> *Sent:* Monday, April 26, 2021 3:48 PM
> *To:* Deucher, Alexander <Alexander.Deucher at amd.com 
> <mailto:Alexander.Deucher at amd.com>>
> *Cc:* amd-gfx list <amd-gfx at lists.freedesktop.org 
> <mailto:amd-gfx at lists.freedesktop.org>>; Sun, Roy <Roy.Sun at amd.com 
> <mailto:Roy.Sun at amd.com>>; Nieto, David M <David.Nieto at amd.com 
> <mailto:David.Nieto at amd.com>>
> *Subject:* Re: [PATCH 1/2] drm/scheduler: Change scheduled fence track
>
> My concern is more to get this tested from more people than just AMD.
>
> Christian.
>
> Am 26.04.21 um 21:40 schrieb Deucher, Alexander:
>
>     [AMD Official Use Only - Internal Distribution Only]
>
>     That said, it would be easier for me to merge through the AMD tree
>     since a relatively big AMD feature depends on it.  Not sure how
>     much conflict potential there is if this goes through the AMD tree.
>
>     Alex
>
>     ------------------------------------------------------------------------
>
>     *From:*amd-gfx <amd-gfx-bounces at lists.freedesktop.org>
>     <mailto:amd-gfx-bounces at lists.freedesktop.org> on behalf of
>     Deucher, Alexander <Alexander.Deucher at amd.com>
>     <mailto:Alexander.Deucher at amd.com>
>     *Sent:* Monday, April 26, 2021 3:24 PM
>     *To:* Christian König <ckoenig.leichtzumerken at gmail.com>
>     <mailto:ckoenig.leichtzumerken at gmail.com>
>     *Cc:* amd-gfx list <amd-gfx at lists.freedesktop.org>
>     <mailto:amd-gfx at lists.freedesktop.org>; Sun, Roy <Roy.Sun at amd.com>
>     <mailto:Roy.Sun at amd.com>; Nieto, David M <David.Nieto at amd.com>
>     <mailto:David.Nieto at amd.com>
>     *Subject:* Re: [PATCH 1/2] drm/scheduler: Change scheduled fence
>     track
>
>     [AMD Official Use Only - Internal Distribution Only]
>
>     [AMD Official Use Only - Internal Distribution Only]
>
>     No objections from me.
>
>     Thanks!
>
>     Alex
>
>     ------------------------------------------------------------------------
>
>     *From:*Christian König <ckoenig.leichtzumerken at gmail.com>
>     <mailto:ckoenig.leichtzumerken at gmail.com>
>     *Sent:* Monday, April 26, 2021 2:49 AM
>     *To:* Deucher, Alexander <Alexander.Deucher at amd.com>
>     <mailto:Alexander.Deucher at amd.com>
>     *Cc:* Nieto, David M <David.Nieto at amd.com>
>     <mailto:David.Nieto at amd.com>; Sun, Roy <Roy.Sun at amd.com>
>     <mailto:Roy.Sun at amd.com>; amd-gfx list
>     <amd-gfx at lists.freedesktop.org> <mailto:amd-gfx at lists.freedesktop.org>
>     *Subject:* Re: [PATCH 1/2] drm/scheduler: Change scheduled fence
>     track
>
>     Hey Alex,
>
>     any objections that we merge those two patches through drm-misc-next?
>
>     Thanks,
>     Christian.
>
>     Am 26.04.21 um 08:27 schrieb Roy Sun:
>     > Update the timestamp of scheduled fence on HW
>     > completion of the previous fences
>     >
>     > This allow more accurate tracking of the fence
>     > execution in HW
>     >
>     > Signed-off-by: David M Nieto <david.nieto at amd.com>
>     <mailto:david.nieto at amd.com>
>     > Signed-off-by: Roy Sun <Roy.Sun at amd.com> <mailto:Roy.Sun at amd.com>
>     > ---
>     > drivers/gpu/drm/scheduler/sched_main.c | 12 ++++++++++--
>     >   1 file changed, 10 insertions(+), 2 deletions(-)
>     >
>     > diff --git a/drivers/gpu/drm/scheduler/sched_main.c
>     b/drivers/gpu/drm/scheduler/sched_main.c
>     > index 92d8de24d0a1..f8e39ab0c41b 100644
>     > --- a/drivers/gpu/drm/scheduler/sched_main.c
>     > +++ b/drivers/gpu/drm/scheduler/sched_main.c
>     > @@ -515,7 +515,7 @@ void drm_sched_resubmit_jobs(struct
>     drm_gpu_scheduler *sched)
>     > EXPORT_SYMBOL(drm_sched_resubmit_jobs);
>     >
>     >   /**
>     > - * drm_sched_resubmit_jobs_ext - helper to relunch certain
>     number of jobs from mirror ring list
>     > + * drm_sched_resubmit_jobs_ext - helper to relaunch certain
>     number of jobs from pending list
>     >    *
>     >    * @sched: scheduler instance
>     >    * @max: job numbers to relaunch
>     > @@ -671,7 +671,7 @@ drm_sched_select_entity(struct
>     drm_gpu_scheduler *sched)
>     >   static struct drm_sched_job *
>     > drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched)
>     >   {
>     > -     struct drm_sched_job *job;
>     > +     struct drm_sched_job *job, *next;
>     >
>     >        /*
>     >         * Don't destroy jobs while the timeout worker is running
>     OR thread
>     > @@ -690,6 +690,14 @@ drm_sched_get_cleanup_job(struct
>     drm_gpu_scheduler *sched)
>     >        if (job && dma_fence_is_signaled(&job->s_fence->finished)) {
>     >                /* remove job from pending_list */
>     > list_del_init(&job->list);
>     > We just need to record the scheduled time of the next job. So we
>     > need not to check the rest job.
>     > +             /* account for the next fence in the queue */
>     > +             next = list_first_entry_or_null(&sched->pending_list,
>     > + struct drm_sched_job, list);
>     > +             if (next && test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT,
>     > + &job->s_fence->finished.flags)) {
>     > + next->s_fence->scheduled.timestamp =
>     > + job->s_fence->finished.timestamp;
>     > +             }
>     >        } else {
>     >                job = NULL;
>     >                /* queue timeout for next job */
>

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