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jdl@freescale.coma37c8872005-09-07 15:27:09 -05001#ifndef _ASM_POWERPC_MMAN_H
2#define _ASM_POWERPC_MMAN_H
Linus Torvalds1da177e2005-04-16 15:20:36 -07003
4/*
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 */
10
11#define PROT_READ 0x1 /* page can be read */
12#define PROT_WRITE 0x2 /* page can be written */
13#define PROT_EXEC 0x4 /* page can be executed */
14#define PROT_SEM 0x8 /* page may be used for atomic ops */
15#define PROT_NONE 0x0 /* page can not be accessed */
16#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
17#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
18
19#define MAP_SHARED 0x01 /* Share changes */
20#define MAP_PRIVATE 0x02 /* Changes are private */
21#define MAP_TYPE 0x0f /* Mask for type of mapping */
22#define MAP_FIXED 0x10 /* Interpret addr exactly */
23#define MAP_ANONYMOUS 0x20 /* don't use a file */
24#define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */
25#define MAP_NORESERVE 0x40 /* don't reserve swap pages */
26#define MAP_LOCKED 0x80
27
28#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
29#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
30#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
31
32#define MS_ASYNC 1 /* sync memory asynchronously */
33#define MS_INVALIDATE 2 /* invalidate the caches */
34#define MS_SYNC 4 /* synchronous memory sync */
35
36#define MCL_CURRENT 0x2000 /* lock all currently mapped pages */
37#define MCL_FUTURE 0x4000 /* lock all additions to address space */
38
39#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
40#define MAP_NONBLOCK 0x10000 /* do not block on IO */
41
42#define MADV_NORMAL 0x0 /* default page-in behavior */
43#define MADV_RANDOM 0x1 /* page-in minimum required */
44#define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */
45#define MADV_WILLNEED 0x3 /* pre-fault pages */
46#define MADV_DONTNEED 0x4 /* discard these pages */
47
48/* compatibility flags */
49#define MAP_ANON MAP_ANONYMOUS
50#define MAP_FILE 0
51
jdl@freescale.coma37c8872005-09-07 15:27:09 -050052#endif /* _ASM_POWERPC_MMAN_H */