[PATCH 07/13] drm/amdgpu: add UAPI to query GFX shadow sizes

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

On Thu, Mar 23, 2023 at 5:41 PM Alex Deucher <alexander.deucher at amd.com>
wrote:

> Add UAPI to query the GFX shadow buffer requirements
> for preemption on GFX11.  UMDs need to specify the shadow
> areas for preemption.
>
> v2: move into existing asic info query
>     drop GDS as its use is determined by the UMD (Marek)
>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>  include/uapi/drm/amdgpu_drm.h | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
> index 3d9474af6566..3563c69521b0 100644
> --- a/include/uapi/drm/amdgpu_drm.h
> +++ b/include/uapi/drm/amdgpu_drm.h
> @@ -1136,6 +1136,14 @@ struct drm_amdgpu_info_device {
>         __u64 mall_size;            /* AKA infinity cache */
>         /* high 32 bits of the rb pipes mask */
>         __u32 enabled_rb_pipes_mask_hi;
> +       /* shadow area size for gfx11 */
> +       __u32 shadow_size;
> +       /* shadow area alignment for gfx11 */
> +       __u32 shadow_alignment;
> +       /* context save area size for gfx11 */
> +       __u32 csa_size;
> +       /* context save area alignment for gfx11 */
> +       __u32 csa_alignment;
>  };
>
>  struct drm_amdgpu_info_hw_ip {
> --
> 2.39.2
>
>
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