| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* $Id: mman.h,v 1.9 2000/03/15 02:44:23 davem Exp $ */ |
| 2 | #ifndef __SPARC_MMAN_H__ |
| 3 | #define __SPARC_MMAN_H__ |
| 4 | |
| 5 | /* SunOS'ified... */ |
| 6 | |
| 7 | #define PROT_READ 0x1 /* page can be read */ |
| 8 | #define PROT_WRITE 0x2 /* page can be written */ |
| 9 | #define PROT_EXEC 0x4 /* page can be executed */ |
| 10 | #define PROT_SEM 0x8 /* page may be used for atomic ops */ |
| 11 | #define PROT_NONE 0x0 /* page can not be accessed */ |
| 12 | #define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ |
| 13 | #define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ |
| 14 | |
| 15 | #define MAP_SHARED 0x01 /* Share changes */ |
| 16 | #define MAP_PRIVATE 0x02 /* Changes are private */ |
| 17 | #define MAP_TYPE 0x0f /* Mask for type of mapping */ |
| 18 | #define MAP_FIXED 0x10 /* Interpret addr exactly */ |
| 19 | #define MAP_ANONYMOUS 0x20 /* don't use a file */ |
| 20 | #define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */ |
| 21 | #define MAP_NORESERVE 0x40 /* don't reserve swap pages */ |
| 22 | #define MAP_INHERIT 0x80 /* SunOS doesn't do this, but... */ |
| 23 | #define MAP_LOCKED 0x100 /* lock the mapping */ |
| 24 | #define _MAP_NEW 0x80000000 /* Binary compatibility is fun... */ |
| 25 | |
| 26 | #define MAP_GROWSDOWN 0x0200 /* stack-like segment */ |
| 27 | #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ |
| 28 | #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ |
| 29 | |
| 30 | #define MS_ASYNC 1 /* sync memory asynchronously */ |
| 31 | #define MS_INVALIDATE 2 /* invalidate the caches */ |
| 32 | #define MS_SYNC 4 /* synchronous memory sync */ |
| 33 | |
| 34 | #define MCL_CURRENT 0x2000 /* lock all currently mapped pages */ |
| 35 | #define MCL_FUTURE 0x4000 /* lock all additions to address space */ |
| 36 | |
| 37 | #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ |
| 38 | #define MAP_NONBLOCK 0x10000 /* do not block on IO */ |
| 39 | |
| 40 | /* XXX Need to add flags to SunOS's mctl, mlockall, and madvise system |
| 41 | * XXX calls. |
| 42 | */ |
| 43 | |
| 44 | /* SunOS sys_mctl() stuff... */ |
| 45 | #define MC_SYNC 1 /* Sync pages in memory with storage (usu. a file) */ |
| 46 | #define MC_LOCK 2 /* Lock pages into core ram, do not allow swapping of them */ |
| 47 | #define MC_UNLOCK 3 /* Unlock pages locked via previous mctl() with MC_LOCK arg */ |
| 48 | #define MC_LOCKAS 5 /* Lock an entire address space of the calling process */ |
| 49 | #define MC_UNLOCKAS 6 /* Unlock entire address space of calling process */ |
| 50 | |
| 51 | #define MADV_NORMAL 0x0 /* default page-in behavior */ |
| 52 | #define MADV_RANDOM 0x1 /* page-in minimum required */ |
| 53 | #define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */ |
| 54 | #define MADV_WILLNEED 0x3 /* pre-fault pages */ |
| 55 | #define MADV_DONTNEED 0x4 /* discard these pages */ |
| 56 | #define MADV_FREE 0x5 /* (Solaris) contents can be freed */ |
| 57 | |
| 58 | /* compatibility flags */ |
| 59 | #define MAP_ANON MAP_ANONYMOUS |
| 60 | #define MAP_FILE 0 |
| 61 | |
| 62 | #endif /* __SPARC_MMAN_H__ */ |