powerpc/mm: Define flags for Strong Access Ordering

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This patch defines:

- PROT_SAO, which is passed into mmap() and mprotect() in the prot field
- VM_SAO in vma->vm_flags, and
- _PAGE_SAO, the combination of WIMG bits in the pte that enables strong
access ordering for the page.

Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Dave Kleikamp 2008-07-08 00:28:52 +10:00 • committed by Benjamin Herrenschmidt

parent b845f313d7

commit aba46c5027

3 changed files with 6 additions and 0 deletions

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2

include/asm-powerpc/mman.h

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3

include/asm-powerpc/pgtable-ppc64.h

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1

include/linux/mm.h

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