drm/i915: Pull sync_scru for device reset outside of wedge_mutex

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We need to flush our srcu protecting resources about to be clobbered
by the reset, inside of our timer failsafe but outside of the
error->wedge_mutex, so that the failsafe can run in case the
synchronize_srcu() takes too long (hits a shrinker deadlock?).

Fixes: 72eb16df01 ("drm/i915: Serialise resets with wedging")
References: https://bugs.freedesktop.org/show_bug.cgi?id=109605
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190211135040.1234-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>

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Chris Wilson 2019-02-11 13:50:39 +00:00

parent a0f52c3d35

commit 785fbda5ba

1 changed files with 3 additions and 3 deletions

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drivers/gpu/drm/i915/i915_reset.c

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