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Linux kernel mirror (for testing)
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linux
1/*
2 * include/asm-s390/mman.h
3 *
4 * S390 version
5 *
6 * Derived from "include/asm-i386/mman.h"
7 */
8
9#ifndef __S390_MMAN_H__
10#define __S390_MMAN_H__
11
12#define PROT_READ 0x1 /* page can be read */
13#define PROT_WRITE 0x2 /* page can be written */
14#define PROT_EXEC 0x4 /* page can be executed */
15#define PROT_SEM 0x8 /* page may be used for atomic ops */
16#define PROT_NONE 0x0 /* page can not be accessed */
17#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
18#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
19
20#define MAP_SHARED 0x01 /* Share changes */
21#define MAP_PRIVATE 0x02 /* Changes are private */
22#define MAP_TYPE 0x0f /* Mask for type of mapping */
23#define MAP_FIXED 0x10 /* Interpret addr exactly */
24#define MAP_ANONYMOUS 0x20 /* don't use a file */
25
26#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
27#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
28#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
29#define MAP_LOCKED 0x2000 /* pages are locked */
30#define MAP_NORESERVE 0x4000 /* don't check for reservations */
31#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
32#define MAP_NONBLOCK 0x10000 /* do not block on IO */
33
34#define MS_ASYNC 1 /* sync memory asynchronously */
35#define MS_INVALIDATE 2 /* invalidate the caches */
36#define MS_SYNC 4 /* synchronous memory sync */
37
38#define MCL_CURRENT 1 /* lock all current mappings */
39#define MCL_FUTURE 2 /* lock all future mappings */
40
41#define MADV_NORMAL 0x0 /* default page-in behavior */
42#define MADV_RANDOM 0x1 /* page-in minimum required */
43#define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */
44#define MADV_WILLNEED 0x3 /* pre-fault pages */
45#define MADV_DONTNEED 0x4 /* discard these pages */
46
47/* compatibility flags */
48#define MAP_ANON MAP_ANONYMOUS
49#define MAP_FILE 0
50
51#endif /* __S390_MMAN_H__ */