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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 NOTOURBUG - [CI][BAT icl] igt@drv_selftest@live_contexts - dmesg-fail - igt_ctx_readonly failed with error -5 HSDES#:1807136187"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108569">bug 108569</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>NOTOURBUG
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTOURBUG - [CI][BAT icl] igt@drv_selftest@live_contexts - dmesg-fail - igt_ctx_readonly failed with error -5 HSDES#:1807136187"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108569#c21">Comment # 21</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTOURBUG - [CI][BAT icl] igt@drv_selftest@live_contexts - dmesg-fail - igt_ctx_readonly failed with error -5 HSDES#:1807136187"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108569">bug 108569</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 3936867dbc1eb8790aa5985a68d53e4303b3616f
Author: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>>
Date: Thu Apr 11 11:30:34 2019 +0300
drm/i915: Disable read only ppgtt support for gen11
On gen11 writing to read only ppgtt page causes a gpu hang.
This behaviour is different than with previous gen where
read only ppgtt access is supported. On those, the write
is just dropped without visible side effects.
Disable ro ppgtt support on gen11 until a solution can
be found to bring it into line with its predecessors.
References: HSDES#1807136187
References: <a href="https://bugzilla.freedesktop.org/show_bug.cgi?id=108569">https://bugzilla.freedesktop.org/show_bug.cgi?id=108569</a>
Cc: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Signed-off-by: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>>
Acked-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20190411083034.28311-1-mika.kuoppala@linux.intel.com">https://patchwork.freedesktop.org/patch/msgid/20190411083034.28311-1-mika.kuoppala@linux.intel.com</a></pre>
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