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<body><span class="vcard"><a class="email" href="mailto:mika.kuoppala@intel.com" title="Mika Kuoppala <mika.kuoppala@intel.com>"> <span class="fn">Mika Kuoppala</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT BYT regression] WARNING "Unclaimed register detected before reading register 0x186500""
href="https://bugs.freedesktop.org/show_bug.cgi?id=93698">bug 93698</a>
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<td>ville.syrjala@linux.intel.com
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT BYT regression] WARNING "Unclaimed register detected before reading register 0x186500""
href="https://bugs.freedesktop.org/show_bug.cgi?id=93698#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT BYT regression] WARNING "Unclaimed register detected before reading register 0x186500""
href="https://bugs.freedesktop.org/show_bug.cgi?id=93698">bug 93698</a>
from <span class="vcard"><a class="email" href="mailto:mika.kuoppala@intel.com" title="Mika Kuoppala <mika.kuoppala@intel.com>"> <span class="fn">Mika Kuoppala</span></a>
</span></b>
<pre>This unclaimed has always been there, it is just that we enabled
the debugs for byt/bsw too, which brought this to surface.
If you look closely there is identical trace with bsw, but with
different testcase: igt@kms_pipe_crc_basic@read-crc-pipe-c-frame-sequence
I have verified that indeed the power wells are all off when
we set the memory_cxsr, from intel_pre_plane_update().
Ville knows about this and according to him this is a real
problem with atomic commit in how/where intel_pre_plane_update() is called.</pre>
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