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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BYT BAT IGT] GT register access while GT waking disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93121#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BYT BAT IGT] GT register access while GT waking disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93121">bug 93121</a>
from <span class="vcard"><a class="email" href="mailto:joonas.lahtinen@linux.intel.com" title="Joonas Lahtinen <joonas.lahtinen@linux.intel.com>"> <span class="fn">Joonas Lahtinen</span></a>
</span></b>
<pre>I added tracking for the ALLOWWAKE bit for VLV and WARN_ON's to vlv_write/write
(vlv_write which I forked from gen6_write) if the bit is disabled and register
is in RENDER or MEDIA register ranges. This revealed that at least the bug I am
able to reproduce, is caused by hangcheck accessing the render ring when waking
from runtime suspend. Attached log.</pre>
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