linux_dsm_epyc7002/arch/powerpc/include/asm/book3s
Aneesh Kumar K.V 6a119eae94 powerpc/mm: Add a _PAGE_PTE bit
For a pte entry we will have _PAGE_PTE set. Our pte page
address have a minimum alignment requirement of HUGEPD_SHIFT_MASK + 1.
We use the lower 7 bits to indicate hugepd. ie.

For pmd and pgd we can find:
1) _PAGE_PTE set pte -> indicate PTE
2) bits [2..6] non zero -> indicate hugepd.
   They also encode the size. We skip bit 1 (_PAGE_PRESENT).
3) othewise pointer to next table.

Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-12-14 15:19:14 +11:00
..
32 powerpc/mm: Move PTE bits from generic functions to hash64 functions. 2015-12-14 15:19:08 +11:00
64 powerpc/mm: Add a _PAGE_PTE bit 2015-12-14 15:19:14 +11:00
pgtable.h powerpc/mm: Move PTE bits from generic functions to hash64 functions. 2015-12-14 15:19:08 +11:00