Hi Geert Thank you for your feedback > > Current rcar-dmac is using DMAC error interrupt which will handle all > > channel's error. But in this design, error handling itself will be > > issue if user want to use virtualization, multi OS, etc. > > This patch removes current DMAC error interrupt handling, and handle it > > on each channel interrupt handler. > > Just wondering, what's the usage pattern where this causes a problem? > Do you plan to export part of a SYS-DMAC instance to a guest? "virtualization, multi OS" part is maybe misleading. It will be problem on non virtualization, too. > How to maintain host/guest isolation? This is another topic/issue, I think Best regards --- Kuninori Morimoto