[PATCH] [PPC64] [2/2] IOMMU cleanups: Main cleanup patch

[Paul Mackerras]

Olof Johansson writes:

> Earlier cleanup efforts of the ppc64 IOMMU code have mostly been targeted
> at simplifying the allocation schemes and modularising things for the
> various platforms. The IOMMU init functions are still a mess. This is
> an attempt to clean them up and make them somewhat easier to follow.
...
> Signed-off-by: Olof Johansson <olof at austin.ibm.com>

Acked-by: Paul Mackerras <paulus at samba.org>