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drm/amdgpu: introduce struct amdgpu_bo_user

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Implement a new struct amdgpu_bo_user as subclass of
struct amdgpu_bo and a function to created amdgpu_bo_user
bo with a flag to identify the owner.

v2: amdgpu_bo_to_amdgpu_bo_user -> to_amdgpu_bo_user()

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
2021-03-05 13:00:22 +01:00
committed by Alex Deucher
parent 9fd5543e95
commit 9ad0d033ed
2 changed files with 42 additions and 0 deletions
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28
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
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@@ -694,6 +694,34 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
return r;
}
/**
* amdgpu_bo_create_user - create an &amdgpu_bo_user buffer object
* @adev: amdgpu device object
* @bp: parameters to be used for the buffer object
* @ubo_ptr: pointer to the buffer object pointer
*
* Create a BO to be used by user application;
*
* Returns:
* 0 for success or a negative error code on failure.
*/
int amdgpu_bo_create_user(struct amdgpu_device *adev,
struct amdgpu_bo_param *bp,
struct amdgpu_bo_user **ubo_ptr)
{
struct amdgpu_bo *bo_ptr;
int r;
bp->flags = bp->flags & ~AMDGPU_GEM_CREATE_SHADOW;
bp->bo_ptr_size = sizeof(struct amdgpu_bo_user);
r = amdgpu_bo_do_create(adev, bp, &bo_ptr);
if (r)
return r;
*ubo_ptr = to_amdgpu_bo_user(bo_ptr);
return r;
}
/**
* amdgpu_bo_validate - validate an &amdgpu_bo buffer object
* @bo: pointer to the buffer object