https://blog.wongcw.com/2021/12/14/oppo%e7%99%bc%e4%bd%88%e9%a6%96%e5%80%8b%e8%87%aa%e7%a0%94npu%e6%99%b6%e5%85%83-%e9%a6%ac%e9%87%8c%e4%ba%9e%e7%b4%8dmarisilicon-x/