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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - [BYT] Page flip doesn't change tiling mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76176#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - [BYT] Page flip doesn't change tiling mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76176">bug 76176</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=76176#c11">comment #11</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=76176#c10">comment #10</a>)
> > I guess Chris can tilt at this windmill. :)
> >
> > Another thing I don't think I tried is to write the tile reg and surf reg
> > *after* the flip in the CS. Writing it before didn't seem to work, probably
> > because the tile bit got clobbered by the message from the GT side. But
> > writing it after, while racy, might work.
>
> Yeah mean with LRI? AFAIK LRIs targeting display registers end up in
> /dev/null on byt.</span >
Yes. All we need to do is to make sure we do actually engage the mmio flip.
Sadly the same applies for #77104</pre>
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