[Intel-gfx] [PATCH 6/9] Revert "drm/i915/bdw: Limit GTT to 2GB"

[Imre Deak]

On Wed, 2014-02-12 at 14:28 -0800, Ben Widawsky wrote:
> This reverts commit 3a2ffb65eec6dbda2fd8151894f51c18b42c8d41.
> 
> Now that the code is fixed to use smaller allocations, it should be safe
> to let the full GGTT be used on DW.
> 
> The testcase for this is anything which uses more than half of the GTT,
> thus eclipsing the old limit.
> 
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>

After the remaining issues fixed, on this one:
Reviewed-by: Imre Deak <imre.deak at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_gem_gtt.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 5299acc..2c2121d 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -1733,11 +1733,6 @@ static inline unsigned int gen8_get_total_gtt_size(u16 bdw_gmch_ctl)
>  	bdw_gmch_ctl &= BDW_GMCH_GGMS_MASK;
>  	if (bdw_gmch_ctl)
>  		bdw_gmch_ctl = 1 << bdw_gmch_ctl;
> -	if (bdw_gmch_ctl > 4) {
> -		WARN_ON(!i915.preliminary_hw_support);
> -		return 4<<20;
> -	}
> -
>  	return bdw_gmch_ctl << 20;
>  }
>  

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