[PATCH 03/13] drm/i915: pass seqno to i915_hangcheck_ring_idle

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On Tue, Feb 26, 2013 at 01:05:06PM +0200, Mika Kuoppala wrote:
> In preparation for next commit, pass seqno as a parameter
> to i915_hangcheck_ring_idle as it will be used inside
> i915_hangcheck_elapsed.
> 
> Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_irq.c |   11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index 29037e0..4f60c87 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -1740,11 +1740,11 @@ ring_last_seqno(struct intel_ring_buffer *ring)
>  			  struct drm_i915_gem_request, list)->seqno;
>  }
>  
> -static bool i915_hangcheck_ring_idle(struct intel_ring_buffer *ring, bool *err)
> +static bool i915_hangcheck_ring_idle(struct intel_ring_buffer *ring,
> +				     u32 ring_seqno, bool *err)
>  {
>  	if (list_empty(&ring->request_list) ||
> -	    i915_seqno_passed(ring->get_seqno(ring, false),
> -			      ring_last_seqno(ring))) {
> +	    i915_seqno_passed(ring_seqno, ring_last_seqno(ring))) {
>  		/* Issue a wake-up to catch stuck h/w. */
>  		if (waitqueue_active(&ring->irq_queue)) {
>  			DRM_ERROR("Hangcheck timer elapsed... %s idle\n",

I think just return err. Don't bother with a bool and *err return.

> @@ -1821,7 +1821,10 @@ void i915_hangcheck_elapsed(unsigned long data)
>  	memset(acthd, 0, sizeof(acthd));
>  	idle = true;
>  	for_each_ring(ring, dev_priv, i) {
> -	    idle &= i915_hangcheck_ring_idle(ring, &err);
> +		u32 seqno;
> +
> +		seqno = ring->get_seqno(ring, false);
> +		idle &= i915_hangcheck_ring_idle(ring, seqno, &err);
>  	    acthd[i] = intel_ring_get_active_head(ring);
>  	}
>  
-- 
Ben Widawsky, Intel Open Source Technology Center


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