On Fri, Mar 14, 2014 at 09:58:06AM -0700, Ben Widawsky wrote:
> The preliminary HW support check is no longer needed, and the
> calculation is simplified while here.
> 
> Reported-by: David Woodhouse <[email protected]>
> Signed-off-by: Ben Widawsky <[email protected]>
> ---
>  drivers/gpu/drm/i915/i915_gem_gtt.c | 9 +--------
>  1 file changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c 
> b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 40a2b36..694112a 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -1250,14 +1250,7 @@ static inline unsigned int gen8_get_total_gtt_size(u16 
> bdw_gmch_ctl)
>  {
>       bdw_gmch_ctl >>= BDW_GMCH_GGMS_SHIFT;
>       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;
> +     return 1 << (bdw_gmch_ctl + 20);

I don't have this in my tree, and it seems to never have existed in
upstream ...

/me is confused

Cheers, Daniel

>  }
>  
>  static inline size_t gen6_get_stolen_size(u16 snb_gmch_ctl)
> -- 
> 1.9.0
> 
> _______________________________________________
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> [email protected]
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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