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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 - [uxa regression] [drm:i915_gem_do_execbuffer] 0 cliprects but dirt in cliprects fields"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78494">bug 78494</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;">Status</td>
<td>ASSIGNED
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [uxa regression] [drm:i915_gem_do_execbuffer] 0 cliprects but dirt in cliprects fields"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78494#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [uxa regression] [drm:i915_gem_do_execbuffer] 0 cliprects but dirt in cliprects fields"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78494">bug 78494</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 ea2ffaa17220ff906355465a878f019cc7091003
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Tue May 13 13:37:37 2014 +0200
drm/i915: Work-around garbage DR4 from UXA
Somehow UXA submits a completely bogus DR4 value since essentially
forever. It was originally introduced in
commit bade7d7d2505a10a8a7d24b084aff9742e2d6d64
Author: Eric Anholt <<a href="mailto:eric@anholt.net">eric@anholt.net</a>>
Date: Fri Jun 6 14:03:25 2008 -0700
Use the DRM for submitting batchbuffers when available.
and dutifully copied around ever since. Since we want to keep the
general dirt catching around just special case the UXA value.
This regression was introduced in
commit 9cb346648d9c529eccc5c7f30093e82d37004e37
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Thu Apr 24 08:09:11 2014 +0200
drm/i915: Catch dirt in unused execbuffer fields
Comment from Chris' review:
"To be fair, it is a sensible value if one supposes a Region style API to
cliprects. Under that API, DR[14] define the extents of the clip region,
and ((0,0), (0,0)) [DR1==DR4==0] would mean all clipped, do not draw
anything."
v2: Pimp commit message a bit and remove the double space.
Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [uxa regression] [drm:i915_gem_do_execbuffer] 0 cliprects but dirt in cliprects fields"
href="show_bug.cgi?id=78494">https://bugs.freedesktop.org/show_bug.cgi?id=78494</a>
Cc: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Cc: Jörg Otte <<a href="mailto:jrg.otte@gmail.com">jrg.otte@gmail.com</a>>
Acked-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>></pre>
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