On Tue, Aug 05, 2014 at 05:16:26PM +0300, Mika Kuoppala wrote:
> If the actual head has progressed forward inside a batch (request),
> don't accumulate hangcheck score.
> 
> As the hangcheck score in increased only by acthd jumping backwards,
> the result is that we only declare an active batch as stuck if it is
> trapped inside a loop. Or that the looping will dominate the batch
> progression so that it overcomes the bonus that forward progress gives.
> 
> v2: Improved commit message (Chris Wilson)
> 
> Signed-off-by: Mika Kuoppala <mika.kuopp...@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_gpu_error.c   |    2 ++
>  drivers/gpu/drm/i915/i915_irq.c         |   15 ++++++++++++---
>  drivers/gpu/drm/i915/intel_ringbuffer.h |    2 ++
>  3 files changed, 16 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c 
> b/drivers/gpu/drm/i915/i915_gpu_error.c
> index 9a13eed..a422f96 100644
> --- a/drivers/gpu/drm/i915/i915_gpu_error.c
> +++ b/drivers/gpu/drm/i915/i915_gpu_error.c
> @@ -229,6 +229,8 @@ static const char *hangcheck_action_to_str(enum 
> intel_ring_hangcheck_action a)
>               return "wait";
>       case HANGCHECK_ACTIVE:
>               return "active";
> +     case HANGCHECK_ACTIVE_LOOP:
> +             return "active_loop";

This string is for the user, i.e. me, and I'd prefer it to say
"active (loop)" rather than have the underscore.

Other than that,
Reviewed-by: Chris Wilson <ch...@chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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