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    <body><span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span> changed
          <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [CI][SHARDS] igt@gem_exec_schedule@semaphore-resolve - fail - Failed assertion: !"GPU hung""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=110519">bug 110519</a>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>FIXED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>RESOLVED
           </td>
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      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [CI][SHARDS] igt@gem_exec_schedule@semaphore-resolve - fail - Failed assertion: !"GPU hung""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=110519#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [CI][SHARDS] igt@gem_exec_schedule@semaphore-resolve - fail - Failed assertion: !"GPU hung""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=110519">bug 110519</a>
              from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
        <pre>commit 8ee36e048c98d4015804a23f884be2576f778a93 (HEAD -> drm-intel-next-queued,
drm-intel/for-linux-next, drm-intel/drm-intel-next-queued)
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date:   Thu Jun 20 15:20:52 2019 +0100

    drm/i915/execlists: Minimalistic timeslicing

    If we have multiple contexts of equal priority pending execution,
    activate a timer to demote the currently executing context in favour of
    the next in the queue when that timeslice expires. This enforces
    fairness between contexts (so long as they allow preemption -- forced
    preemption, in the future, will kick those who do not obey) and allows
    us to avoid userspace blocking forward progress with e.g. unbounded
    MI_SEMAPHORE_WAIT.

    For the starting point here, we use the jiffie as our timeslice so that
    we should be reasonably efficient wrt frequent CPU wakeups.

    Testcase: igt/gem_exec_scheduler/semaphore-resolve
    Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
    Reviewed-by: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>>
    Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20190620142052.19311-2-chris@chris-wilson.co.uk">https://patchwork.freedesktop.org/patch/msgid/20190620142052.19311-2-chris@chris-wilson.co.uk</a></pre>
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