drm/i915: Fix hangcheck to handle multiple rings
authorChris Wilson <chris@chris-wilson.co.uk>
Wed, 27 Oct 2010 13:44:35 +0000 (14:44 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Wed, 27 Oct 2010 22:29:36 +0000 (23:29 +0100)
Currently, we believe the GPU is idle if just the RENDER ring is idle.
This is obviously wrong if we only using either the BLT or the BSD
rings and so masking genuine hangs.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

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