[PATCH 1/4] drm/amdgpu: Macros for vram physical addr calculation

[Christian König]

Hi Oak,

have you seen my review comments on the patches?

Regards,
Christian.

Am 30.03.21 um 21:35 schrieb Oak Zeng:
> Add one macro to calculate BO's GPU physical address.
> And another one to calculate BO's CPU physical address.
>
> Signed-off-by: Oak Zeng <Oak.Zeng at amd.com>
> Suggested-by: Lijo Lazar <lijo.lazar at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> index 7e248a4..b244298 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> @@ -272,6 +272,9 @@ struct amdgpu_gmc {
>   #define amdgpu_gmc_get_vm_pde(adev, level, dst, flags) (adev)->gmc.gmc_funcs->get_vm_pde((adev), (level), (dst), (flags))
>   #define amdgpu_gmc_get_vm_pte(adev, mapping, flags) (adev)->gmc.gmc_funcs->get_vm_pte((adev), (mapping), (flags))
>   #define amdgpu_gmc_get_vbios_fb_size(adev) (adev)->gmc.gmc_funcs->get_vbios_fb_size((adev))
> +#define amdgpu_gmc_gpu_va2pa(adev, va) (va - (adev)->gmc.vram_start + (adev)->vm_manager.vram_base_offset)
> +#define amdgpu_gmc_gpu_pa(adev, bo) amdgpu_gmc_gpu_va2pa(adev, amdgpu_bo_gpu_offset(bo))
> +#define amdgpu_gmc_cpu_pa(adev, bo) (amdgpu_bo_gpu_offset(bo) - (adev)->gmc.vram_start + (adev)->gmc.aper_base)
>   
>   /**
>    * amdgpu_gmc_vram_full_visible - Check if full VRAM is visible through the BAR