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| author | Helge Deller <deller@gmx.de> | 2014-04-09 19:49:28 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2014-04-13 15:00:53 +0200 |
| commit | 0ef36bd2b37815719e31a72d2beecc28ca8ecd26 (patch) | |
| tree | 585481e9ab58d3354977ff611ec21457220b29d8 /arch/parisc/include/asm/shmparam.h | |
| parent | 496252f787560df18a65fdc74dc3180f7cd2c723 (diff) | |
| download | op-kernel-dev-0ef36bd2b37815719e31a72d2beecc28ca8ecd26.zip op-kernel-dev-0ef36bd2b37815719e31a72d2beecc28ca8ecd26.tar.gz | |
parisc: change value of SHMLBA from 0x00400000 to PAGE_SIZE
On parisc, SHMLBA was defined to 0x00400000 (4MB) to reflect that we need to
take care of our caches for shared mappings. But actually, we can map a file at
any multiple address of PAGE_SIZE, so let us correct that now with a value of
PAGE_SIZE for SHMLBA. Instead we now take care of this cache colouring via the
constant SHM_COLOUR while we map shared pages.
Signed-off-by: Helge Deller <deller@gmx.de>
CC: Jeroen Roovers <jer@gentoo.org>
CC: John David Anglin <dave.anglin@bell.net>
CC: Carlos O'Donell <carlos@systemhalted.org>
Cc: stable@kernel.org [3.13+]
Diffstat (limited to 'arch/parisc/include/asm/shmparam.h')
| -rw-r--r-- | arch/parisc/include/asm/shmparam.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/parisc/include/asm/shmparam.h b/arch/parisc/include/asm/shmparam.h index 628ddc2..afe1300 100644 --- a/arch/parisc/include/asm/shmparam.h +++ b/arch/parisc/include/asm/shmparam.h @@ -1,8 +1,7 @@ #ifndef _ASMPARISC_SHMPARAM_H #define _ASMPARISC_SHMPARAM_H -#define __ARCH_FORCE_SHMLBA 1 - -#define SHMLBA 0x00400000 /* attach addr needs to be 4 Mb aligned */ +#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ +#define SHM_COLOUR 0x00400000 /* shared mappings colouring */ #endif /* _ASMPARISC_SHMPARAM_H */ |
