https://blog.wongcw.com/2019/07/05/amd%e5%b7%b2%e5%81%9c%e6%ad%a2%e5%87%ba%e8%b2%a8radeon-vii%e9%a1%af%e5%8d%a1%e5%bb%a0%e5%95%86%e6%b8%85%e5%ba%ab%e5%ad%98/