aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-ppc/mman.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-ppc/mman.h')
-rw-r--r--include/asm-ppc/mman.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/include/asm-ppc/mman.h b/include/asm-ppc/mman.h
new file mode 100644
index 000000000000..5fd19fd4936c
--- /dev/null
+++ b/include/asm-ppc/mman.h
@@ -0,0 +1,44 @@
1#ifndef __PPC_MMAN_H__
2#define __PPC_MMAN_H__
3
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 */
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_LOCKED 0x80
20
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 */
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#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 */
39
40/* compatibility flags */
41#define MAP_ANON MAP_ANONYMOUS
42#define MAP_FILE 0
43
44#endif /* __PPC_MMAN_H__ */