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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 - [IVB/HSW] gen7_queue_flip doesn't work on RCS"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67600">bug 67600</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>
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<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 - [IVB/HSW] gen7_queue_flip doesn't work on RCS"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67600#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [IVB/HSW] gen7_queue_flip doesn't work on RCS"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67600">bug 67600</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 ffe74d75502e3a9b0791240b5562bcbecc6ab8dc
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Mon Aug 26 20:58:12 2013 +0100
drm/i915: Use RCS flips on Ivybridge+
RCS flips do work on Iybridge+ so long as we can unmask the messages
through DERRMR. However, there are quite a few workarounds mentioned
regarding unmasking more than one event or triggering more than one
message through DERRMR. Those workarounds in principle prevent us from
performing pipelined flips (and asynchronous flips across multiple
planes) and equally apply to the "known good" BCS ring. Given that it
already appears to work, and also appears to work with unmasking all 3
planes at once (and queuing flips across multiple planes), be brave.
Bugzlla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [IVB/HSW] gen7_queue_flip doesn't work on RCS"
href="show_bug.cgi?id=67600">https://bugs.freedesktop.org/show_bug.cgi?id=67600</a>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Lightly-tested-by: Stephane Marchesin <<a href="mailto:marchesin@icps.u-strasbg.fr">marchesin@icps.u-strasbg.fr</a>>
Cc: Stephane Marchesin <<a href="mailto:marchesin@icps.u-strasbg.fr">marchesin@icps.u-strasbg.fr</a>>
Cc: Ben Widawsky <<a href="mailto:ben@bwidawsk.net">ben@bwidawsk.net</a>>
Tested-by: Stéphane Marchesin <<a href="mailto:marcheu@chromium.org">marcheu@chromium.org</a>>
Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>></pre>
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