[PATCH v1 2/2] drm/i915: enable vGPU 48bit full PPGTT support

[Zhenyu Wang]

On 2017.05.04 17:35:10 +0800, Tina Zhang wrote:
> This patch is to enable the vGPU 48bit full ppgtt support.
> 
> Signed-off-by: Tina Zhang <tina.zhang at intel.com>
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 8bab4ae..92df4c4 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -141,12 +141,6 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
>  	has_full_ppgtt = dev_priv->info.has_full_ppgtt;
>  	has_full_48bit_ppgtt = dev_priv->info.has_full_48bit_ppgtt;
>  
> -	if (intel_vgpu_active(dev_priv)) {
> -		/* emulation is too hard */
> -		has_full_ppgtt = false;
> -		has_full_48bit_ppgtt = false;
> -	}
> -
>  	if (!has_aliasing_ppgtt)
>  		return 0;
>  

What if you run new kernel with this change on older gvt kernel?
We need compat check.

-- 
Open Source Technology Center, Intel ltd.

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