4 #define PROT_READ 0x1 /* page can be read */
5 #define PROT_WRITE 0x2 /* page can be written */
6 #define PROT_EXEC 0x4 /* page can be executed */
7 #define PROT_SEM 0x8 /* page may be used for atomic ops */
8 #define PROT_NONE 0x0 /* page can not be accessed */
9 #define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
10 #define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
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_LOCKED 0x80
21 #define MAP_GROWSDOWN 0x0100 /* stack-like segment */
22 #define MAP_DENYWRITE 0x0800 /* ETXTBSY */
23 #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
24 #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
25 #define MAP_NONBLOCK 0x10000 /* do not block on IO */
27 #define MS_ASYNC 1 /* sync memory asynchronously */
28 #define MS_INVALIDATE 2 /* invalidate the caches */
29 #define MS_SYNC 4 /* synchronous memory sync */
31 #define MCL_CURRENT 0x2000 /* lock all currently mapped pages */
32 #define MCL_FUTURE 0x4000 /* lock all additions to address space */
34 #define MADV_NORMAL 0x0 /* default page-in behavior */
35 #define MADV_RANDOM 0x1 /* page-in minimum required */
36 #define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */
37 #define MADV_WILLNEED 0x3 /* pre-fault pages */
38 #define MADV_DONTNEED 0x4 /* discard these pages */
40 /* compatibility flags */
41 #define MAP_ANON MAP_ANONYMOUS
44 #endif /* __PPC_MMAN_H__ */
