Windows has a lot of random settings that most of us never dig our way to. For some of them, that's actually a good thing, and one of them is "Turn off write-cache buffer flushing." While it looks ...

Part 1 of this series, covered some background on ION, DMA-BUF heaps, the DMA API, and the concept of "ownership" when it comes to handling CPU-cache maintenance, finally ending on a conventional DMA ...