[Intel-gfx] [PATCH] drm/i915/bdw: Enable full PPGTT

[Ben Widawsky]

On Tue, Apr 01, 2014 at 08:55:14AM -0700, Ben Widawsky wrote:
> Broadwell is perfectly capable of full PPGTT. I've been using it for
> some time, and seen no especially ill effects.
> 
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>

Nak. I spoke too soon. 1 context + default works fine. More than that
gets ugly.

> ---
>  drivers/gpu/drm/i915/i915_drv.h | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index ab7a75e..95477f7 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1830,8 +1830,7 @@ struct drm_i915_cmd_table {
>  
>  #define HAS_HW_CONTEXTS(dev)	(INTEL_INFO(dev)->gen >= 6)
>  #define HAS_ALIASING_PPGTT(dev)	(INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev))
> -#define HAS_PPGTT(dev)		(INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev) \
> -				 && !IS_BROADWELL(dev))
> +#define HAS_PPGTT(dev)		(INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev))
>  #define USES_PPGTT(dev)		intel_enable_ppgtt(dev, false)
>  #define USES_FULL_PPGTT(dev)	intel_enable_ppgtt(dev, true)
>  
> -- 
> 1.9.1
> 
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-- 
Ben Widawsky, Intel Open Source Technology Center