[Intel-gfx] [PATCH 3/3] drm/i915: Implement WaProgramMiArbOnOffAroundMiSetContext:bdw

[Ben Widawsky]

On Mon, Mar 31, 2014 at 06:17:18PM +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> BSpec seems to tell us we need the MI_ARB_ON_OFF w/a around
> MI_SET_CONTEXT on gen8.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Ben Widawsky <ben at bwidawsk.net>

> ---
>  drivers/gpu/drm/i915/i915_gem_context.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
> index 746fb23..28a2b15 100644
> --- a/drivers/gpu/drm/i915/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/i915_gem_context.c
> @@ -606,8 +606,8 @@ mi_set_context(struct intel_ring_buffer *ring,
>  	if (ret)
>  		return ret;
>  
> -	/* WaProgramMiArbOnOffAroundMiSetContext:ivb,vlv,hsw */
> -	if (IS_GEN7(ring->dev))
> +	/* WaProgramMiArbOnOffAroundMiSetContext:ivb,vlv,hsw,bdw */
> +	if (INTEL_INFO(ring->dev)->gen >= 7)
>  		intel_ring_emit(ring, MI_ARB_ON_OFF | MI_ARB_DISABLE);
>  	else
>  		intel_ring_emit(ring, MI_NOOP);
> @@ -625,7 +625,7 @@ mi_set_context(struct intel_ring_buffer *ring,
>  	 */
>  	intel_ring_emit(ring, MI_NOOP);
>  
> -	if (IS_GEN7(ring->dev))
> +	if (INTEL_INFO(ring->dev)->gen >= 7)
>  		intel_ring_emit(ring, MI_ARB_ON_OFF | MI_ARB_ENABLE);
>  	else
>  		intel_ring_emit(ring, MI_NOOP);
> -- 
> 1.8.3.2
> 
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-- 
Ben Widawsky, Intel Open Source Technology Center