amdgpu_bo_kptr
kptr = amdgpu_bo_kptr(bo);
*ptr = amdgpu_bo_kptr(bo);
void *amdgpu_bo_kptr(struct amdgpu_bo *bo);
msg = amdgpu_bo_kptr(bo);
msg = amdgpu_bo_kptr(bo);
void *addr = amdgpu_bo_kptr(adev->uvd.ib_bo);
pe += (unsigned long)amdgpu_bo_kptr(&vmbo->bo);