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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__ */