[PATCH 04/10] drm/amdgpu: use the smaller hole for GART

[Alex Deucher]

On Mon, Aug 27, 2018 at 12:55 PM Christian König
<ckoenig.leichtzumerken at gmail.com> wrote:
>
> Instead of the larger one use the smaller hole in the MC address
> space for the GART mappings.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> index 8269197df8e0..265ec6807130 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> @@ -132,7 +132,8 @@ void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc)
>                 mc->gart_size = max(size_bf, size_af);
>         }
>
> -       if (size_bf > size_af)
> +       if ((size_bf >= mc->gart_size && size_bf < size_af) ||
> +           (size_af < mc->gart_size))
>                 mc->gart_start = 0;
>         else
>                 mc->gart_start = ALIGN(mc->vram_end + 1, 0x100000000ULL);
> --
> 2.17.1
>
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