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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 - [BYT/BSW]igt/gem_userptr_blits/dmabuf-sync Bus error"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85354">bug 85354</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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<td style="text-align:right;">Resolution</td>
<td>---
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<td>FIXED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BYT/BSW]igt/gem_userptr_blits/dmabuf-sync Bus error"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85354#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BYT/BSW]igt/gem_userptr_blits/dmabuf-sync Bus error"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85354">bug 85354</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 18cb650318bb2c910f95d7c7df6625110ed1a590
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Thu Oct 23 07:55:54 2014 +0100
igt/gem_userptr_blits/dmabuf: Provide partial coverage on !llc platforms
Without LLC, we cannot assume coherency between system RAM and the GTT.
If we try to use the GTT with snooped memory, the machine may lock up,
so the kernel prevents us from doing so, causing the test to fail.
However, we still do want to verify that we can access the userptr
through a dmabuf, so just check that we can make a copy from it using
the GPU and ignore the GTT cross-checking.
Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BYT/BSW]igt/gem_userptr_blits/dmabuf-sync Bus error"
href="show_bug.cgi?id=85354">https://bugs.freedesktop.org/show_bug.cgi?id=85354</a>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>></pre>
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