On Fri, Mar 26, 2021, at 16:59, Mark Kettenis wrote: > Some of the DARTs provide a bypass facility. That code make using the > standard "dma-ranges" property tricky. That property would need to > contain the bypass address range. But that would mean that if the > DART driver needs to look at that property to figure out the address > range that supports translation it will need to be able to distinguish > between the translatable address range and the bypass address range. Do we understand if and why we even need to bypass certain streams? And do you have an example for a node in the ADT that contains this bypass range? I've only seen nodes with "bypass" and "bypass-adress" but that could just be some software abstraction Apple uses which doesn't map well to Linux or other OSes and might not even be required here. Sven
