diff options
Diffstat (limited to 'include/asm-ppc/shmparam.h')
| -rw-r--r-- | include/asm-ppc/shmparam.h | 40 |
1 files changed, 1 insertions, 39 deletions
diff --git a/include/asm-ppc/shmparam.h b/include/asm-ppc/shmparam.h index 3ece6775b..d6250602a 100644 --- a/include/asm-ppc/shmparam.h +++ b/include/asm-ppc/shmparam.h @@ -1,44 +1,6 @@ #ifndef _PPC_SHMPARAM_H #define _PPC_SHMPARAM_H -/* address range for shared memory attaches if no address passed to shmat() */ -#define SHM_RANGE_START 0x50000000 -#define SHM_RANGE_END 0x60000000 - -/* - * Format of a swap-entry for shared memory pages currently out in - * swap space (see also mm/swap.c). - * - * SWP_TYPE = SHM_SWP_TYPE - * SWP_OFFSET is used as follows: - * - * bits 0..6 : id of shared memory segment page belongs to (SHM_ID) - * bits 7..21: index of page within shared memory segment (SHM_IDX) - * (actually fewer bits get used since SHMMAX is so low) - */ - -/* - * Keep _SHM_ID_BITS as low as possible since SHMMNI depends on it and - * there is a static array of size SHMMNI. - */ -#define _SHM_ID_BITS 7 -#define SHM_ID_MASK ((1<<_SHM_ID_BITS)-1) - -#define SHM_IDX_SHIFT (_SHM_ID_BITS) -#define _SHM_IDX_BITS 15 -#define SHM_IDX_MASK ((1<<_SHM_IDX_BITS)-1) - -/* - * _SHM_ID_BITS + _SHM_IDX_BITS must be <= 24 on the i386 and - * SHMMAX <= (PAGE_SIZE << _SHM_IDX_BITS). - */ - -#define SHMMAX 0x2000000 /* max shared seg size (bytes) */ -#define SHMMIN 1 /* really PAGE_SIZE */ /* min shared seg size (bytes) */ -#define SHMMNI (1<<_SHM_ID_BITS) /* max num of segs system wide */ -#define SHMALL /* max shm system wide (pages) */ \ - (1<<(_SHM_IDX_BITS+_SHM_ID_BITS)) -#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ -#define SHMSEG SHMMNI /* max shared segs per process */ +#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ #endif /* _PPC_SHMPARAM_H */ |