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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [gm45 regression] [drm:init_ring_common]: *ERROR* render ring initialization failed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76554#c50">Comment # 50</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [gm45 regression] [drm:init_ring_common]: *ERROR* render ring initialization failed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76554">bug 76554</a>
from <span class="vcard"><a class="email" href="mailto:jikos@jikos.cz" title="Jiri Kosina <jikos@jikos.cz>"> <span class="fn">Jiri Kosina</span></a>
</span></b>
<pre>The problematic condition causing the whole ring to be claimed dead is
I915_READ_HEAD(ring) & HEAD_ADDR) == 8
right?
I915_READ_HEAD(ring) returns 000e200c HEAD_ADDR is 0x001FFFFC, so the result is
e200c, not the expected value of 8, causing the ring initialization failure.
Or am I completely wrong here?</pre>
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