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drm/amdgpu: nuke the VM PD/PT shadow handling

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This was only used as workaround for recovering the page tables after
VRAM was lost and is no longer necessary after the function
amdgpu_vm_bo_reset_state_machine() started to do the same.

Compute never used shadows either, so the only proplematic case left is
SVM and that is most likely not recoverable in any way when VRAM is
lost.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2024-08-27 16:12:11 +02:00
committed by Alex Deucher
parent c1de938fb7
commit 7181faaa47
7 changed files with 6 additions and 265 deletions
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21
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
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@@ -136,8 +136,6 @@ struct amdgpu_bo_user {
struct amdgpu_bo_vm {
struct amdgpu_bo bo;
struct amdgpu_bo *shadow;
struct list_head shadow_list;
struct amdgpu_vm_bo_base entries[];
};
@@ -275,22 +273,6 @@ static inline bool amdgpu_bo_encrypted(struct amdgpu_bo *bo)
return bo->flags & AMDGPU_GEM_CREATE_ENCRYPTED;
}
/**
* amdgpu_bo_shadowed - check if the BO is shadowed
*
* @bo: BO to be tested.
*
* Returns:
* NULL if not shadowed or else return a BO pointer.
*/
static inline struct amdgpu_bo *amdgpu_bo_shadowed(struct amdgpu_bo *bo)
{
if (bo->tbo.type == ttm_bo_type_kernel)
return to_amdgpu_bo_vm(bo)->shadow;
return NULL;
}
bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo);
void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain);
@@ -349,9 +331,6 @@ u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo);
u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo);
void amdgpu_bo_get_memory(struct amdgpu_bo *bo,
struct amdgpu_mem_stats *stats);
void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo_vm *vmbo);
int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow,
struct dma_fence **fence);
uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev,
uint32_t domain);