diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2000-01-29 01:41:54 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2000-01-29 01:41:54 +0000 |
| commit | f969d69ba9f952e5bdd38278e25e26a3e4a61a70 (patch) | |
| tree | b3530d803df59d726afaabebc6626987dee1ca05 /include/asm-mips64/shmparam.h | |
| parent | a10ce7ef2066b455d69187643ddf2073bfc4db24 (diff) | |
Merge with 2.3.27.
Diffstat (limited to 'include/asm-mips64/shmparam.h')
| -rw-r--r-- | include/asm-mips64/shmparam.h | 48 |
1 files changed, 1 insertions, 47 deletions
diff --git a/include/asm-mips64/shmparam.h b/include/asm-mips64/shmparam.h index f20fd19a6..9107b35a7 100644 --- a/include/asm-mips64/shmparam.h +++ b/include/asm-mips64/shmparam.h @@ -1,58 +1,12 @@ -/* $Id$ +/* $Id: shmparam.h,v 1.1 1999/08/19 22:56:35 ralf Exp $ * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. - * - * XXX These are obviously wrong for an 64-bit OS, let's see how we divide - * the address space later ... */ #ifndef _ASM_SHMPARAM_H #define _ASM_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) */ -/* Try not to change the default shipped SHMMAX - people rely on it */ - -#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)) -/* - * This constant is very large but the ABI in it's wisdom says ... - */ #define SHMLBA 0x40000 /* attach addr a multiple of this */ -#define SHMSEG SHMMNI /* max shared segs per process */ #endif /* _ASM_SHMPARAM_H */ |