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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [SNB bisected] GPU hang Linux 3.15 (Shuttle SH67, Xeon E3 1235)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79996#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [SNB bisected] GPU hang Linux 3.15 (Shuttle SH67, Xeon E3 1235)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79996">bug 79996</a>
from <span class="vcard"><a class="email" href="mailto:jclw@ymail.com" title="jclw@ymail.com">jclw@ymail.com</a>
</span></b>
<pre>Hmm, your patch does not fix the problem; putting
I915_WRITE(GEN6_GT_MODE, _MASKED_BIT_DISABLE(0xffff));
behind
if (IS_SNB_GT1(dev)) I915_WRITE(GEN6_GT_MODE,
_MASKED_BIT_ENABLE(GEN6_TD_FOUR_ROW_DISPATCH_DISABLE));
however does. So does removing both of the above.
IS_SNB_GT1 is true for device id 0x010a. Isn't this wrong? Don't the Sandy
Bridge Xeon E3 GPUs have 12 Execution Units and would therefore not be GT1?
I'm confused.</pre>
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