arch, mem: Make the page table lookup function return a pointer.
This avoids having a copy in the lookup function itself, and the
declaration of a lot of temporary TLB entry pointers in callers. The
gpu TLB seems to have had the most dependence on the original signature
of the lookup function, partially because it was relying on a somewhat
unsafe copy to a TLB entry using a base class pointer type.
Reviewed-by: Gabe Black <email@example.com>
Maintainer: Gabe Black <firstname.lastname@example.org>
13 files changed