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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [SKL APL] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89055#c48">Comment # 48</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [SKL APL] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89055">bug 89055</a>
from <span class="vcard"><a class="email" href="mailto:matthew.d.roper@intel.com" title="Matt Roper <matthew.d.roper@intel.com>"> <span class="fn">Matt Roper</span></a>
</span></b>
<pre>Note that the series linked above is fully reviewed now, but we probably want
to hold off on merging it until one more issue is fixed. Apparently some BIOS
can setup an unusual/unexpected initial DDB allocation that causes us problems
when we try to inherit it and use it for subsequent watermark calculations.
See
<a href="https://lists.freedesktop.org/archives/intel-gfx/2016-April/093739.html">https://lists.freedesktop.org/archives/intel-gfx/2016-April/093739.html</a>
for details.</pre>
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