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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@drv_selftest@live_hugepages - dmesg-fail - igt_ppgtt_internal_huge failed with error -22"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107499">bug 107499</a>
<br>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][BAT] igt@drv_selftest@live_hugepages - dmesg-fail - igt_ppgtt_internal_huge failed with error -22"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107499#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][BAT] igt@drv_selftest@live_hugepages - dmesg-fail - igt_ppgtt_internal_huge failed with error -22"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107499">bug 107499</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 e6a59382924e2d007b554a2aebcd4445ebb01fef (HEAD -> drm-intel-next-queued,
drm-intel/drm-intel-next-queued)
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Mon Aug 6 15:46:04 2018 +0100
drm/i915/selftests: Unconditionally do a chipset flush before emit_bb_start
Experience teaches us over and over again that coherency on Baytrail
requires the odd heavy hammer, and in particular clflush alone is not
enough to guarrantee that writes from the CPU are picked up by the CS.
Do as we do elsewhere and ensure we have an unconditional
i915_gem_chipset_flush() after writing to memory and submitting a batch
to HW.
Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][BAT] igt@drv_selftest@live_hugepages - dmesg-fail - igt_ppgtt_internal_huge failed with error -22"
href="show_bug.cgi?id=107499">https://bugs.freedesktop.org/show_bug.cgi?id=107499</a>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Reviewed-by: Matthew Auld <<a href="mailto:matthew.auld@intel.com">matthew.auld@intel.com</a>>
Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20180806144604.8346-1-chris@chris-wilson.co.uk">https://patchwork.freedesktop.org/patch/msgid/20180806144604.8346-1-chris@chris-wilson.co.uk</a></pre>
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