[PATCH] drm/amdgpu remove restriction of sriov max_pfn on Vega10

[Christian König]

Am 18.10.23 um 04:39 schrieb Lin.Cao:
> Remove restriction of sriov max_pfn so that TBA and TMA can move to high
> 47 bits address.
>
> Regression test: change range alloc flag of libdrm as
> AMDGPU_VA_RANGE_HIGH and there is no flr occur when testing amdgpu_test
> of drm.
>
> Signed-off-by: Lin.Cao <lincao12 at amd.com>

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

> ---
>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 7 ++-----
>   1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 3a1050344b59..b1eb81ca64bc 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -2023,11 +2023,8 @@ static int gmc_v9_0_sw_init(void *handle)
>   		 * vm size is 256TB (48bit), maximum size of Vega10,
>   		 * block size 512 (9bit)
>   		 */
> -		/* sriov restrict max_pfn below AMDGPU_GMC_HOLE */
> -		if (amdgpu_sriov_vf(adev))
> -			amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 47);
> -		else
> -			amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
> +
> +		amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
>   		if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 2))
>   			adev->gmc.translate_further = adev->vm_manager.num_level > 1;
>   		break;