powerpc/mm: Add helpers for accessing hash translation related variables

We want to switch to allocating them runtime only when hash translation is
enabled. Add helpers so that both book3s and nohash can be adapted to
upcoming change easily.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2019-04-17 18:33:48 +05:30 • committed by Michael Ellerman
commit 60458fba46
8 changed files with 154 additions and 44 deletions