[PATCH] [POWERPC] Move phys_addr_t definition into asm/types.h

[Paul Mackerras]

Kumar Gala writes:

> Moved phys_addr_t out of mmu-*.h and into asm/types.h so we can use it in
> places that before would have caused recursive includes.
> 
> For example to use phys_addr_t in <asm/page.h> we would have included
> <asm/mmu.h> which would have possibly included <asm/mmu-hash64.h> which
> includes <asm/page.h>.  Wheeee recursive include.

In general this looks fine.  I wonder if you should use u64 rather
than unsigned long long.  Since CONFIG_PHYS_64BIT=n on 64-bit machines
(which is itself somewhat counterintuitive) we will actually use
unsigned long on 64-bit machines, so it matters less than I originally
thought, but it would be worth explaining that in a comment and/or the
commit message.

Paul.