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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][SHARDS] igt@gem_eio@reset-stress - fail - Failed assertion: elapsed < 250e6"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107500">bug 107500</a>
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<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>FIXED
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][SHARDS] igt@gem_eio@reset-stress - fail - Failed assertion: elapsed < 250e6"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107500#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][SHARDS] igt@gem_eio@reset-stress - fail - Failed assertion: elapsed < 250e6"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107500">bug 107500</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 a4a717010f4e8cacaa3f0cae8a22f25c39ae1d41
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Wed Aug 8 11:51:00 2018 +0100
drm/i915: Unmask user interrupts writes into HWSP on snb/ivb/vlv/hsw
An oddity occurs on Sandybridge, Ivybridge and Haswell (and presumably
Valleyview) in that for the period following the GPU restart after a
reset, there are no GT interrupts received. From Ville's notes, bit 0 in
the HWSTAM corresponds to the render interrupt, and if we unmask it we
do see immediate resumption of GT interrupt delivery (via the master irq
handler) after the reset.
v2: Limit the w/a to the render interrupt from rcs
Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][SHARDS] igt@gem_eio@reset-stress - fail - Failed assertion: elapsed < 250e6"
href="show_bug.cgi?id=107500">https://bugs.freedesktop.org/show_bug.cgi?id=107500</a>
Fixes: c5498089463b ("drm/i915: Mask everything in ring HWSTAM on gen6+ in
ringbuffer mode")
References: d420a50c21ef ("drm/i915: Clean up the HWSTAM mess")
Testcase: igt/gem_eio/reset-stress
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Cc: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
Acked-by: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>></pre>
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