2 * include/asm-s390/mman.h
6 * Derived from "include/asm-i386/mman.h"
9 #ifndef __S390_MMAN_H__
10 #define __S390_MMAN_H__
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_NONE 0x0 /* page can not be accessed */
17 #define MAP_SHARED 0x01 /* Share changes */
18 #define MAP_PRIVATE 0x02 /* Changes are private */
19 #define MAP_TYPE 0x0f /* Mask for type of mapping */
20 #define MAP_FIXED 0x10 /* Interpret addr exactly */
21 #define MAP_ANONYMOUS 0x20 /* don't use a file */
23 #define MAP_GROWSDOWN 0x0100 /* stack-like segment */
24 #define MAP_DENYWRITE 0x0800 /* ETXTBSY */
25 #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
26 #define MAP_LOCKED 0x2000 /* pages are locked */
27 #define MAP_NORESERVE 0x4000 /* don't check for reservations */
29 #define MS_ASYNC 1 /* sync memory asynchronously */
30 #define MS_INVALIDATE 2 /* invalidate the caches */
31 #define MS_SYNC 4 /* synchronous memory sync */
33 #define MCL_CURRENT 1 /* lock all current mappings */
34 #define MCL_FUTURE 2 /* lock all future mappings */
36 #define MADV_NORMAL 0x0 /* default page-in behavior */
37 #define MADV_RANDOM 0x1 /* page-in minimum required */
38 #define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */
39 #define MADV_WILLNEED 0x3 /* pre-fault pages */
40 #define MADV_DONTNEED 0x4 /* discard these pages */
42 /* compatibility flags */
43 #define MAP_ANON MAP_ANONYMOUS
46 #endif /* __S390_MMAN_H__ */