drm/i915: Capture the initial error-state when kicking stuck rings
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 10 Oct 2013 08:37:19 +0000 (09:37 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 10 Oct 2013 10:48:02 +0000 (12:48 +0200)
commit09e14bf3ba4b72be4d57d99e3620beae4fb1ecd8
treebcfd167ae9857677377dfadb403bff0174a7ac70
parent4c445e0ebc648ee42c0d21713b8f76597854d47a
drm/i915: Capture the initial error-state when kicking stuck rings

We lost the ability to capture the first error for a stuck ring in the
recent hangcheck robustification. Whilst both error states are
interesting (why does the GPU not recover is also essential to debug),
our primary goal is to fix the initial hang and so we need to capture
the first error state upon taking hangcheck action.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_irq.c