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drm/admgpu: add two shadow BO helper functions

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Add amdgpu_bo_add_to_shadow_list() to handle shadow list
additions and amdgpu_bo_shadowed() to check if a BO is shadowed.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nirmoy Das 2021-05-26 18:18:40 +02:00 committed by Alex Deucher
parent 2a675640bc
commit 1fdc79f6f9
2 changed files with 33 additions and 0 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@ -736,6 +736,22 @@ int amdgpu_bo_validate(struct amdgpu_bo *bo)
return r;
}
/**
* amdgpu_bo_add_to_shadow_list - add a BO to the shadow list
*
* @bo: BO that will be inserted into the shadow list
*
* Insert a BO to the shadow list.
*/
void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo *bo)
{
struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
mutex_lock(&adev->shadow_list_lock);
list_add_tail(&bo->shadow_list, &adev->shadow_list);
mutex_unlock(&adev->shadow_list_lock);
}
/**
* amdgpu_bo_restore_shadow - restore an &amdgpu_bo shadow
*

17
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
View File

@ -259,6 +259,22 @@ 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);
@ -322,6 +338,7 @@ u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo);
int amdgpu_bo_validate(struct amdgpu_bo *bo);
void amdgpu_bo_get_memory(struct amdgpu_bo *bo, uint64_t *vram_mem,
uint64_t *gtt_mem, uint64_t *cpu_mem);
void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo *bo);
int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow,
struct dma_fence **fence);
uint32_t amdgpu_bo_get_preferred_pin_domain(struct amdgpu_device *adev,