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_NONE 0x0 /* page can not be accessed */
11
12 #define MAP_SHARED 0x01 /* Share changes */
13 #define MAP_PRIVATE 0x02 /* Changes are private */
14 #define MAP_TYPE 0x0f /* Mask for type of mapping */
15 #define MAP_FIXED 0x10 /* Interpret addr exactly */
16 #define MAP_ANONYMOUS 0x20 /* don't use a file */
17 #define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */
18 #define MAP_NORESERVE 0x40 /* don't reserve swap pages */
19 #define MAP_INHERIT 0x80 /* SunOS doesn't do this, but... */
20 #define MAP_LOCKED 0x100 /* lock the mapping */
21 #define _MAP_NEW 0x80000000 /* Binary compatibility is fun... */
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
27 #define MS_ASYNC 1 /* sync memory asynchronously */
28 #define MS_INVALIDATE 2 /* invalidate the caches */
29 #define MS_SYNC 4 /* synchronous memory sync */
30
31 #define MCL_CURRENT 0x2000 /* lock all currently mapped pages */
32 #define MCL_FUTURE 0x4000 /* lock all additions to address space */
33
34 /* XXX Need to add flags to SunOS's mctl, mlockall, and madvise system
35 * XXX calls.
36 */
37
38 /* SunOS sys_mctl() stuff... */
39 #define MC_SYNC 1 /* Sync pages in memory with storage (usu. a file) */
40 #define MC_LOCK 2 /* Lock pages into core ram, do not allow swapping of them */
41 #define MC_UNLOCK 3 /* Unlock pages locked via previous mctl() with MC_LOCK arg */
42 #define MC_LOCKAS 5 /* Lock an entire address space of the calling process */
43 #define MC_UNLOCKAS 6 /* Unlock entire address space of calling process */
44
45 #define MADV_NORMAL 0x0 /* default page-in behavior */
46 #define MADV_RANDOM 0x1 /* page-in minimum required */
47 #define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */
48 #define MADV_WILLNEED 0x3 /* pre-fault pages */
49 #define MADV_DONTNEED 0x4 /* discard these pages */
50 #define MADV_FREE 0x5 /* (Solaris) contents can be freed */
51
52 /* compatibility flags */
53 #define MAP_ANON MAP_ANONYMOUS
54 #define MAP_FILE 0
55
56 #endif /* __SPARC_MMAN_H__ */
57
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