[Intel-gfx] [PATCH] drm/i915: Implement workaround for broken CS tlb on i830/845

[Chris Wilson]

On Sun, 16 Dec 2012 22:46:00 +0000, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> @@ -1087,6 +1087,9 @@ i915_error_first_batchbuffer(struct drm_i915_private *dev_priv,
>  	if (!ring->get_seqno)
>  		return NULL;
>  
> +	if (HAS_BROKEN_CS_TLB(dev_priv->dev))
> +		return i915_error_object_create(dev_priv, ring->private);

Hmm, this is complicated by userspace opting out of the CS w/a, and
imposes quite a burden upon our simple seq interface.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre