[Intel-gfx] [PATCH] drm/i915: Capture the initial error-state when kicking stuck rings

[Mika Kuoppala]

Chris Wilson <chris at chris-wilson.co.uk> writes:

> 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 at chris-wilson.co.uk>

Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>