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<body><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> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][BAT] igt@debugfs_test@read_all_entries - dmesg-warn - Unclaimed read from register 0x70278"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107396">bug 107396</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][BAT] igt@debugfs_test@read_all_entries - dmesg-warn - Unclaimed read from register 0x70278"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107396#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][BAT] igt@debugfs_test@read_all_entries - dmesg-warn - Unclaimed read from register 0x70278"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107396">bug 107396</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>commit 12a6c931beffeaaa350ef562e91e49918b4b3e68
Author: Paulo Zanoni <<a href="mailto:paulo.r.zanoni@intel.com">paulo.r.zanoni@intel.com</a>>
Date: Tue Jul 31 17:46:14 2018 -0700
drm/i915/icl: avoid unclaimed PLANE_NV12_BUF_CFG register
We don't have proper watermark NV12 support on ICL due to differences
in how it should be implemented. In commit 234059da0f33
("drm/i915/icl: NV12 y-plane ddb is not in same plane") we avoided
writing the non-existent PLANE_NV12_BUF_CFG registers but we forgot to
also avoid them on the hardware state readout. While the code is still
not correct, at least now we can avoid unclaimed register error
messages when dealing with RGB formats, which makes CI happier.
Also add some FIXME comments in order to make it even more clear that
there's still work to do.
References: commit 234059da0f33 ("drm/i915/icl: NV12 y-plane ddb is
not in same plane")
Cc: Mahesh Kumar <<a href="mailto:mahesh1.kumar@intel.com">mahesh1.kumar@intel.com</a>>
Reviewed-by: Mahesh Kumar <<a href="mailto:mahesh1.kumar@intel.com">mahesh1.kumar@intel.com</a>>
Signed-off-by: Paulo Zanoni <<a href="mailto:paulo.r.zanoni@intel.com">paulo.r.zanoni@intel.com</a>>
Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20180801004614.22149-1-paulo.r.zanoni@intel.com">https://patchwork.freedesktop.org/patch/msgid/20180801004614.22149-1-paulo.r.zanoni@intel.com</a></pre>
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