<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><span class="vcard"><a class="email" href="mailto:zbiggy@o2.pl" title="Zbigniew Luszpinski <zbiggy@o2.pl>"> <span class="fn">Zbigniew Luszpinski</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - (bisected) 32bit corruption with PIPE_USAGE_STREAM reverted"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84627">bug 84627</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;">Attachment #107655 is obsolete</td>
<td>
</td>
<td>1
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - (bisected) 32bit corruption with PIPE_USAGE_STREAM reverted"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84627#c30">Comment # 30</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - (bisected) 32bit corruption with PIPE_USAGE_STREAM reverted"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84627">bug 84627</a>
from <span class="vcard"><a class="email" href="mailto:zbiggy@o2.pl" title="Zbigniew Luszpinski <zbiggy@o2.pl>"> <span class="fn">Zbigniew Luszpinski</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=110024" name="attach_110024" title="Added Aruba GPU to Ignore RADEON_GEM_GTT_WC on Kabini">attachment 110024</a> <a href="attachment.cgi?id=110024&action=edit" title="Added Aruba GPU to Ignore RADEON_GEM_GTT_WC on Kabini">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=84627&attachment=110024'>[review]</a>
Added Aruba GPU to Ignore RADEON_GEM_GTT_WC on Kabini
<a href="show_bug.cgi?id=84627#c27">Comment 27</a> Hamish Wilson 2014-11-08 23:17:00 UTC
<span class="quote">> I should mention that this bug now also appears with Mesa 10.3.3 as well.</span >
Actually this bug appeared first in Mesa 10.3.2:
<a href="http://cgit.freedesktop.org/mesa/mesa/log/?h=10.3&ofs=100">http://cgit.freedesktop.org/mesa/mesa/log/?h=10.3&ofs=100</a>
with this patch:
2014-10-13 r600g,radeonsi: Always use GTT again for PIPE_USAGE_STREAM
buffers Michel Dänzer
<a href="http://cgit.freedesktop.org/mesa/mesa/commit/?h=10.3&id=64c2bdc334ba472603b1e7cd2c3046cfbce285b6">http://cgit.freedesktop.org/mesa/mesa/commit/?h=10.3&id=64c2bdc334ba472603b1e7cd2c3046cfbce285b6</a>
I reported this finding to Michael and he responded with link to this bug here.
This patch continues to be in later releases so all new mesa releases are
affected on 32 bit Linux.
The quick workaround for mesa 10.3.2 and later on 32 bit Linux is to just
revert this Michael's patch above
OR
add your GPU to Michael's exclusion patch "drm/radeon: Ignore
RADEON_GEM_GTT_WC on Kabini" attached to this bug report.
Just apply only one of these solutions. I prefer to add my GPU to exclusion
list "drm/radeon: Ignore RADEON_GEM_GTT_WC on Kabini" patch instead of patching
mesa.
See patch attached here where modified Michael's patch to add my Aruba GPU.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>