drm/i915: make gpu hangman more resilient
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 27 Apr 2012 13:17:43 +0000 (15:17 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Sat, 5 May 2012 17:46:18 +0000 (19:46 +0200)
commit2b9dc9a27b5869f082b08306da14f7c232693954
tree20ec1d4879539a8969bc048a222424500918ef32
parent350d2706209cabb187a86508ecd7763237f938c8
drm/i915: make gpu hangman more resilient

- reset the stop_rings infrastructure while resetting the hw to
  avoid angering the hangcheck right away (and potentially declaring
  the gpu permanently wedged).

- ignore reset failures when hanging due to the hangman - we don't
  have reset code for all generations.

v2: Ensure that we only ignore reset failures when the hw reset is not
implemented and not when it failed.

Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_drv.c