powerpc/mm: Implement helpers for pagetable fragment support at PMD level

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2018-04-16 16:57:22 +05:30 • committed by Michael Ellerman
commit 8a6c697b99
11 changed files with 144 additions and 6 deletions