linux/arch/powerpc/include
Aneesh Kumar K.V 049d567af2 powerpc/mm: Introduce _PAGE_LARGE software pte bits
This patch adds a new software defined pte bit. We use the reserved
fields of ISA 3.0 pte definition since we will only be using this on DD1
code paths. We can possibly look at removing this code later.

The software bit will be used to differentiate between 64K/4K and 2M
ptes. This helps in finding the page size mapping by a pte so that we
can do efficient tlb flush.

We don't support 1G hugetlb pages yet. So we add a DEBUG WARN_ON to
catch wrong usage.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-28 22:37:41 +11:00
..
asm powerpc/mm: Introduce _PAGE_LARGE software pte bits 2016-11-28 22:37:41 +11:00
uapi/asm powerpc/ptrace: Enable support for Performance Monitor registers 2016-08-01 11:15:24 +10:00