<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101691#c42">Comment # 42</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101691">bug 101691</a>
from <span class="vcard"><a class="email" href="mailto:ben@bwidawsk.net" title="Ben Widawsky <ben@bwidawsk.net>"> <span class="fn">Ben Widawsky</span></a>
</span></b>
<pre>SNA_POWERSAVE effects a good amount more than what I initially thought.
1. Potentially extra flushing.
2. Prefer blit ring over render ring.
Corruption itself looks like X-tiled cachelines. And the changes in SNA totally
effect cacheline behavior; blitter uses different caches, extra flushing does
extra flushes :)
WRT <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU"
href="show_bug.cgi?id=101691#c37">https://bugs.freedesktop.org/show_bug.cgi?id=101691#c37</a>. Not entirely sure
what you're getting at. dma_buf core should be handling the coherency between
the two parties and it's up to the driver implementation to handle
map/begin_cpu_access etc. to handle appropriately. Assuming we're talking about
dma_buf.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
<li>You are the assignee for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>