blob: f5b7bf5fba6837fb053a05f5394684b9421fe537 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __PARISC_MMAN_H__
2#define __PARISC_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 0x03 /* Mask for type of mapping */
15#define MAP_FIXED 0x04 /* Interpret addr exactly */
16#define MAP_ANONYMOUS 0x10 /* don't use a file */
17
18#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
19#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
20#define MAP_LOCKED 0x2000 /* pages are locked */
21#define MAP_NORESERVE 0x4000 /* don't check for reservations */
22#define MAP_GROWSDOWN 0x8000 /* stack-like segment */
23#define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */
24#define MAP_NONBLOCK 0x20000 /* do not block on IO */
Arnd Bergmann90f72aa2009-09-21 17:03:45 -070025#define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */
26#define MAP_HUGETLB 0x80000 /* create a huge page mapping */
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
28#define MS_SYNC 1 /* synchronous memory sync */
29#define MS_ASYNC 2 /* sync memory asynchronously */
30#define MS_INVALIDATE 4 /* invalidate the caches */
31
32#define MCL_CURRENT 1 /* lock all current mappings */
33#define MCL_FUTURE 2 /* lock all future mappings */
34
35#define MADV_NORMAL 0 /* no further special treatment */
36#define MADV_RANDOM 1 /* expect random page references */
37#define MADV_SEQUENTIAL 2 /* expect sequential page references */
38#define MADV_WILLNEED 3 /* will need these pages */
39#define MADV_DONTNEED 4 /* don't need these pages */
40#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
41#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
42#define MADV_VPS_INHERIT 7 /* Inherit parents page size */
Michael S. Tsirkin5f6164f2006-02-15 15:17:39 -080043
44/* common/generic parameters */
45#define MADV_REMOVE 9 /* remove these pages & resources */
46#define MADV_DONTFORK 10 /* don't inherit across fork */
47#define MADV_DOFORK 11 /* do inherit across fork */
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
49/* The range 12-64 is reserved for page size specification. */
50#define MADV_4K_PAGES 12 /* Use 4K pages */
51#define MADV_16K_PAGES 14 /* Use 16K pages */
52#define MADV_64K_PAGES 16 /* Use 64K pages */
53#define MADV_256K_PAGES 18 /* Use 256K pages */
54#define MADV_1M_PAGES 20 /* Use 1 Megabyte pages */
55#define MADV_4M_PAGES 22 /* Use 4 Megabyte pages */
56#define MADV_16M_PAGES 24 /* Use 16 Megabyte pages */
57#define MADV_64M_PAGES 26 /* Use 64 Megabyte pages */
Linus Torvalds1da177e2005-04-16 15:20:36 -070058
Hugh Dickinsd19f3522009-09-21 17:01:53 -070059#define MADV_MERGEABLE 65 /* KSM may merge identical pages */
60#define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */
61
Andrea Arcangelia826e422011-01-13 15:46:31 -080062#define MADV_HUGEPAGE 67 /* Worth backing with hugepages */
Andrea Arcangeli1ddd6db2011-01-13 15:47:17 -080063#define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */
Andrea Arcangelia826e422011-01-13 15:46:31 -080064
Linus Torvalds1da177e2005-04-16 15:20:36 -070065/* compatibility flags */
Linus Torvalds1da177e2005-04-16 15:20:36 -070066#define MAP_FILE 0
67#define MAP_VARIABLE 0
68
69#endif /* __PARISC_MMAN_H__ */