转自 https://blog.csdn.net/wdjjwb/article/details/87713477
dc civac Data or unified Cache line Clean and Invalidate by VA to PoCdc ivac Data or unified Cache line Invalidate by VA to PoC
[转] DMA cache 一致性问题
原文：https://www.cnblogs.com/yi-mu-xi/p/15044069.html
