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drm/amdgpu: add UAPI to query GFX shadow sizes

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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)
v3: Update comments to note that alignment is base
    virtual alignment (Alex)

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2023-03-09 13:43:13 -05:00
parent 38be7796f3
commit edd9038000
1 changed files with 8 additions and 0 deletions
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8
include/uapi/drm/amdgpu_drm.h
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@ -1138,6 +1138,14 @@ 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 base virtual alignment for gfx11 */
__u32 shadow_alignment;
/* context save area size for gfx11 */
__u32 csa_size;
/* context save area base virtual alignment for gfx11 */
__u32 csa_alignment;
};
struct drm_amdgpu_info_hw_ip {