Re: [PATCH v7 04/12] drm/amdgpu: add amdgpu_gtt_node_to_byte_offset helper

["Christian König" <christian.koenig@amd.com>]

On 1/29/26 16:33, Pierre-Eric Pelloux-Prayer wrote:
> Having a helper avoids code duplication.
> 
> Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

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

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> index 871388b86503..c43f352df953 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> @@ -220,6 +220,14 @@ static inline u64 amdgpu_compute_gart_address(struct amdgpu_gmc *gmc,
>  	return gmc->gart_start + entity->gart_window_offs[index];
>  }
>  
> +/**
> + * amdgpu_gtt_node_to_byte_offset() - Returns a byte offset of a gtt node
> + */
> +static inline u64 amdgpu_gtt_node_to_byte_offset(const struct drm_mm_node *gtt_node)
> +{
> +	return gtt_node->start * (u64)PAGE_SIZE;
> +}
> +
>  void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct amdgpu_hmm_range *range);
>  int amdgpu_ttm_tt_get_userptr(const struct ttm_buffer_object *tbo,
>  			      uint64_t *user_addr);