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_NONE 0x0 /* page can not be accessed */ 16 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 */ 22 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 */ 28 29 #define MS_ASYNC 1 /* sync memory asynchronously */ 30 #define MS_INVALIDATE 2 /* invalidate the caches */ 31 #define MS_SYNC 4 /* synchronous memory sync */ 32 33 #define MCL_CURRENT 1 /* lock all current mappings */ 34 #define MCL_FUTURE 2 /* lock all future mappings */ 35 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 */ 41 42 /* compatibility flags */ 43 #define MAP_ANON MAP_ANONYMOUS 44 #define MAP_FILE 0 45 46 #endif /* __S390_MMAN_H__ */ 47