Re: [PATCH] drm/amdgpu: PRT support for gfx9

["Zhang, Jerry (Junwei)" <Jerry.Zhang-5C7GfCeVMHo@public.gmane.org>]

Anyone could help to review it?

On 04/17/2017 05:04 PM, Junwei Zhang wrote:
> Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 5 +++++
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 1 +
>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c  | 2 +-
>   3 files changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index 9ff445c..51aedf9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -1269,6 +1269,11 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
>   	spin_unlock(&vm->status_lock);
>
>   	list_for_each_entry(mapping, &bo_va->invalids, list) {
> +		if (mapping->flags & AMDGPU_PTE_TILED) {
> +			flags |= AMDGPU_PTE_TILED;
> +			flags &= ~AMDGPU_PTE_VALID;
> +		}
> +
>   		r = amdgpu_vm_bo_split_mapping(adev, exclusive,
>   					       gtt_flags, pages_addr, vm,
>   					       mapping, flags, mem,
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> index 4904740..8d25914 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> @@ -70,6 +70,7 @@
>   /* VEGA10 only */
>   #define AMDGPU_PTE_MTYPE(a)    ((uint64_t)a << 57)
>   #define AMDGPU_PTE_MTYPE_MASK	AMDGPU_PTE_MTYPE(3ULL)
> +#define AMDGPU_PTE_TILED	(1ULL << 51)
>
>   /* How to programm VM fault handling */
>   #define AMDGPU_VM_FAULT_STOP_NEVER	0
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 51a1919..6d033ae 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -324,7 +324,7 @@ static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
>   	}
>
>   	if (flags & AMDGPU_VM_PAGE_PRT)
> -		pte_flag |= AMDGPU_PTE_PRT;
> +		pte_flag |= AMDGPU_PTE_TILED;
>
>   	return pte_flag;
>   }
>
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