amdgpu_bo_get_preferred_domain
domain = amdgpu_bo_get_preferred_domain(adev,
domain = amdgpu_bo_get_preferred_domain(adev, domain);
uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev,
bp.domain = amdgpu_bo_get_preferred_domain(adev, bp.domain);