tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __ALPHA_MMAN_H__
2#define __ALPHA_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 (OSF/1 is _wrong_) */
15#define MAP_FIXED 0x100 /* Interpret addr exactly */
16#define MAP_ANONYMOUS 0x10 /* don't use a file */
17
18/* not used by linux, but here to make sure we don't clash with OSF/1 defines */
19#define _MAP_HASSEMAPHORE 0x0200
20#define _MAP_INHERIT 0x0400
21#define _MAP_UNALIGNED 0x0800
22
23/* These are linux-specific */
24#define MAP_GROWSDOWN 0x01000 /* stack-like segment */
25#define MAP_DENYWRITE 0x02000 /* ETXTBSY */
26#define MAP_EXECUTABLE 0x04000 /* mark it as an executable */
27#define MAP_LOCKED 0x08000 /* lock the mapping */
28#define MAP_NORESERVE 0x10000 /* don't check for reservations */
29#define MAP_POPULATE 0x20000 /* populate (prefault) pagetables */
30#define MAP_NONBLOCK 0x40000 /* do not block on IO */
31
32#define MS_ASYNC 1 /* sync memory asynchronously */
33#define MS_SYNC 2 /* synchronous memory sync */
34#define MS_INVALIDATE 4 /* invalidate the caches */
35
36#define MCL_CURRENT 8192 /* lock all currently mapped pages */
37#define MCL_FUTURE 16384 /* lock all additions to address space */
38
39#define MADV_NORMAL 0 /* no further special treatment */
40#define MADV_RANDOM 1 /* expect random page references */
41#define MADV_SEQUENTIAL 2 /* expect sequential page references */
42#define MADV_WILLNEED 3 /* will need these pages */
43#define MADV_SPACEAVAIL 5 /* ensure resources are available */
44#define MADV_DONTNEED 6 /* don't need these pages */
45
46/* compatibility flags */
47#define MAP_ANON MAP_ANONYMOUS
48#define MAP_FILE 0
49
50#endif /* __ALPHA_MMAN_H__ */