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drm/i915: Discard the request queue if we fail to sleep before suspend

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If we fail to clear the outstanding request queue before suspending,
mark those requests as lost.

References: https://bugs.freedesktop.org/show_bug.cgi?id=102037
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170826110935.10237-3-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
This commit is contained in:
Chris Wilson 2017-08-26 12:09:35 +01:00
parent f36325f378
commit fc692bd31b
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/i915_gem.c
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@ -4590,7 +4590,8 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
* reset the GPU back to its idle, low power state.
*/
WARN_ON(dev_priv->gt.awake);
WARN_ON(!intel_engines_are_idle(dev_priv));
if (WARN_ON(!intel_engines_are_idle(dev_priv)))
i915_gem_set_wedged(dev_priv); /* no hope, discard everything */
/*
* Neither the BIOS, ourselves or any other kernel