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| author | Dave Kleikamp <shaggy@linux.vnet.ibm.com> | 2008-07-07 14:28:52 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-09 06:30:45 (GMT) |
| commit | aba46c5027cb59d98052231b36efcbbde9c77a1d (patch) | |
| tree | b69dd362c74db562789d14136294c5fcbb7632e7 /include/asm-powerpc/mman.h | |
| parent | b845f313d78e4e259ec449909e3bbadf77b53a6d (diff) | |
| download | linux-fsl-qoriq-aba46c5027cb59d98052231b36efcbbde9c77a1d.tar.xz | |
powerpc/mm: Define flags for Strong Access Ordering
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>
Diffstat (limited to 'include/asm-powerpc/mman.h')
| -rw-r--r-- | include/asm-powerpc/mman.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-powerpc/mman.h b/include/asm-powerpc/mman.h index 24cf664..0c46bf2 100644 --- a/include/asm-powerpc/mman.h +++ b/include/asm-powerpc/mman.h @@ -10,6 +10,8 @@ * 2 of the License, or (at your option) any later version. */ +#define PROT_SAO 0x10 /* Strong Access Ordering */ + #define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */ #define MAP_NORESERVE 0x40 /* don't reserve swap pages */ #define MAP_LOCKED 0x80 |