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    <div class="moz-cite-prefix">Am 26.04.21 um 17:30 schrieb Wang,
      Kevin(Yang):<br>
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cite="mid:MN2PR12MB3022E9D72A4816C9A693F591A2429@MN2PR12MB3022.namprd12.prod.outlook.com">
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        [AMD Official Use Only - Internal Distribution Only]<br>
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        <div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
            face="Calibri, sans-serif" color="#000000"><b>From:</b>
            amd-gfx <a class="moz-txt-link-rfc2396E" href="mailto:amd-gfx-bounces@lists.freedesktop.org"><amd-gfx-bounces@lists.freedesktop.org></a> on
            behalf of Roy Sun <a class="moz-txt-link-rfc2396E" href="mailto:Roy.Sun@amd.com"><Roy.Sun@amd.com></a><br>
            <b>Sent:</b> Monday, April 26, 2021 2:27 PM<br>
            <b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:amd-gfx@lists.freedesktop.org">amd-gfx@lists.freedesktop.org</a>
            <a class="moz-txt-link-rfc2396E" href="mailto:amd-gfx@lists.freedesktop.org"><amd-gfx@lists.freedesktop.org></a><br>
            <b>Cc:</b> Sun, Roy <a class="moz-txt-link-rfc2396E" href="mailto:Roy.Sun@amd.com"><Roy.Sun@amd.com></a>; Nieto, David M
            <a class="moz-txt-link-rfc2396E" href="mailto:David.Nieto@amd.com"><David.Nieto@amd.com></a><br>
            <b>Subject:</b> [PATCH 1/2] drm/scheduler: Change scheduled
            fence track</font>
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        <div class="BodyFragment"><font size="2"><span
              style="font-size:11pt">
              <div class="PlainText">Update the timestamp of scheduled
                fence on HW<br>
                completion of the previous fences<br>
                <br>
                This allow more accurate tracking of the fence<br>
                execution in HW<br>
                <br>
                Signed-off-by: David M Nieto <a class="moz-txt-link-rfc2396E" href="mailto:david.nieto@amd.com"><david.nieto@amd.com></a><br>
                Signed-off-by: Roy Sun <a class="moz-txt-link-rfc2396E" href="mailto:Roy.Sun@amd.com"><Roy.Sun@amd.com></a><br>
                ---<br>
                 drivers/gpu/drm/scheduler/sched_main.c | 12
                ++++++++++--<br>
                 1 file changed, 10 insertions(+), 2 deletions(-)<br>
                <br>
                diff --git a/drivers/gpu/drm/scheduler/sched_main.c
                b/drivers/gpu/drm/scheduler/sched_main.c<br>
                index 92d8de24d0a1..f8e39ab0c41b 100644<br>
                --- a/drivers/gpu/drm/scheduler/sched_main.c<br>
                +++ b/drivers/gpu/drm/scheduler/sched_main.c<br>
                @@ -515,7 +515,7 @@ void drm_sched_resubmit_jobs(struct
                drm_gpu_scheduler *sched)<br>
                 EXPORT_SYMBOL(drm_sched_resubmit_jobs);<br>
                 <br>
                 /**<br>
                - * drm_sched_resubmit_jobs_ext - helper to relunch
                certain number of jobs from mirror ring list<br>
                + * drm_sched_resubmit_jobs_ext - helper to relaunch
                certain number of jobs from pending list<br>
                  *<br>
                  * @sched: scheduler instance<br>
                  * @max: job numbers to relaunch<br>
                @@ -671,7 +671,7 @@ drm_sched_select_entity(struct
                drm_gpu_scheduler *sched)<br>
                 static struct drm_sched_job *<br>
                 drm_sched_get_cleanup_job(struct drm_gpu_scheduler
                *sched)<br>
                 {<br>
                -       struct drm_sched_job *job;<br>
                +       struct drm_sched_job *job, *next;<br>
                 <br>
                         /*<br>
                          * Don't destroy jobs while the timeout worker
                is running  OR thread<br>
                @@ -690,6 +690,14 @@ drm_sched_get_cleanup_job(struct
                drm_gpu_scheduler *sched)<br>
                         if (job &&
                dma_fence_is_signaled(&job->s_fence->finished))
                {<br>
                                 /* remove job from pending_list */<br>
                                 list_del_init(&job->list);<br>
                We just need to record the scheduled time of the next
                job. So we <br>
                need not to check the rest job.</div>
              <div class="PlainText"><br>
              </div>
              <div class="PlainText">[kevin]:</div>
              <div class="PlainText">ok, it is fine for me with the
                timestamp flag check.</div>
              <div class="PlainText">Reviewed-by: Kevin Wang
                <a class="moz-txt-link-rfc2396E" href="mailto:kevin1.wang@amd.com"><kevin1.wang@amd.com></a></div>
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    <br>
    Actually please drop that extra check.<br>
    <br>
    The timestamp is guaranteed to be set on the next job or otherwise
    we wouldn't got here in the first place.<br>
    <br>
    I've considered dropping the flag for quite a while and don't want
    any new users of this.<br>
    <br>
    Christian.<br>
    <br>
    <blockquote type="cite"
cite="mid:MN2PR12MB3022E9D72A4816C9A693F591A2429@MN2PR12MB3022.namprd12.prod.outlook.com">
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                +               /* account for the next fence in the
                queue */<br>
                +               next =
                list_first_entry_or_null(&sched->pending_list,<br>
                +                               struct drm_sched_job,
                list);<br>
                +               if (next &&
                test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT,<br>
                +                      
                &job->s_fence->finished.flags)) {<br>
                +                      
                next->s_fence->scheduled.timestamp =<br>
                +                              
                job->s_fence->finished.timestamp;<br>
                +               }<br>
                         } else {<br>
                                 job = NULL;<br>
                                 /* queue timeout for next job */<br>
                -- <br>
                2.31.1<br>
                <br>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
amd-gfx mailing list
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