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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - i965: Support instruction compaction on Gen < 6"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77742#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - i965: Support instruction compaction on Gen < 6"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77742">bug 77742</a>
from <span class="vcard"><a class="email" href="mailto:siglesias@igalia.com" title="Samuel Iglesias <siglesias@igalia.com>"> <span class="fn">Samuel Iglesias</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=98676" name="attach_98676" title="Patch">attachment 98676</a> <a href="attachment.cgi?id=98676&action=edit" title="Patch">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=77742&attachment=98676'>[review]</a>
Patch
This is the patch I had developed with my errors fixed... but I couldn't make
it work on Ironlake. As I said in the previous comment, I found that in
Ironlake it outputs these kernel messages when I run piglit tests (after some
thousands of them):
[...]
[757604.292530] [drm] stuck on render ring
[757604.292581] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[757604.292583] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[757604.292585] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[757604.292587] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[757604.292588] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[757606.269708] [drm] stuck on render ring
[757608.270874] [drm] stuck on render ring
[...]
I don't know if in G45 architecture this patch would work (the struct values
are copied from its docs) because I don't access to a testing machine that has
it.
It might be that Ironlake needs different values or that my patch is directly
wrong. If you want I can submit the GPU crash dump file if needed.
Thanks</pre>
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