On Tue, Jun 23, 2015 at 12:39:09PM +0200, Richard Weinberger wrote:
Not sure if I understand this correctly, is the plan to support pmem
also on UML?
At least drivers/block/pmem.c cannot work on UML as it depends on io memory.
Only x86 seems to have ARCH_HAS_NOCACHE_UACCESS, if UML would offer these methods
what drivers need them? I'm still not sure where it would make sense on UML as
uaccess on UML means ptrace() between host and guest process.
Ok, that makese snese. Dan, how about just moving the new pmem helpers
from cacheflush.h to a new asm/pmem.h to avoid having them dragged into
the um build?