Commit fc692bd3 authored Aug 26, 2017 by Chris Wilson

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

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>

parent f36325f3

drivers/gpu/drm/i915/i915_gem.c

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -4590,7 +4590,8 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
	* reset the GPU back to its idle, low power state.		* reset the GPU back to its idle, low power state.
	*/		*/
	WARN_ON(dev_priv->gt.awake);		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		* Neither the BIOS, ourselves or any other kernel