[PATCH] drm/amd/amdgpu: set gtt size according to system memory size only

[Christian König]

Am 29.11.2017 um 10:12 schrieb Roger He:
> Change-Id: Ib634375b90d875fe04a890fc82fb1e3b7112676a
> Signed-off-by: Roger He <Hongbo.He at amd.com>

Reviewed-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 8 +++-----
>   1 file changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index 17bf0ce..d0661907 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -1330,11 +1330,9 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
>   		struct sysinfo si;
>   
>   		si_meminfo(&si);
> -		gtt_size = min(max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
> -			       adev->mc.mc_vram_size),
> -			       ((uint64_t)si.totalram * si.mem_unit * 3/4));
> -	}
> -	else
> +		gtt_size = max(AMDGPU_DEFAULT_GTT_SIZE_MB << 20,
> +			(uint64_t)si.totalram * si.mem_unit * 3/4);
> +	} else
>   		gtt_size = (uint64_t)amdgpu_gtt_size << 20;
>   	r = ttm_bo_init_mm(&adev->mman.bdev, TTM_PL_TT, gtt_size >> PAGE_SHIFT);
>   	if (r) {