On Fri, 24 Apr 2015, Paul E. McKenney wrote: > > DAX is a mechanism to access memory not managed by the kernel and is the > > successor to XIP. It just happens to be needed for persistent memory. > > Fundamentally any driver can provide an MMAPPed interface to allow access > > to a devices memory. > > I will take another look, but others in this thread have called out > difficulties with DAX's filesystem nature. Right so you do not need the filesystem structure. Just simply writing a device driver that mmaps data as needed from the coprocessor will also do the trick. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>