C++11 atomics: does it make sense, or is it even possible, to use them with memory mapped I/O?

As I understand it, C volatile and optionally inline asm for memory fence have been used for implementing a device driver on top of memory mapped I/O. Several examples can be found in Linux kernel.

If we forget about the risk of uncaught exceptions (if any,) does it make sense to replace them with C++11 atomics? Or, is it possible at all?