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01: #ifndef __ASM_GENERIC_MMAN_COMMON_H
02: #define __ASM_GENERIC_MMAN_COMMON_H
03: 
04: /*
05:  Author: Michael S. Tsirkin <mst@mellanox.co.il>, Mellanox Technologies Ltd.
06:  Based on: asm-xxx/mman.h
07: */
08: 
09: #define PROT_READ       0x1             /* page can be read */
10: #define PROT_WRITE      0x2             /* page can be written */
11: #define PROT_EXEC       0x4             /* page can be executed */
12: #define PROT_SEM        0x8             /* page may be used for atomic ops */
13: #define PROT_NONE       0x0             /* page can not be accessed */
14: #define PROT_GROWSDOWN  0x01000000      /* mprotect flag: extend change to start of growsdown vma */
15: #define PROT_GROWSUP    0x02000000      /* mprotect flag: extend change to end of growsup vma */
16: 
17: #define MAP_SHARED      0x01            /* Share changes */
18: #define MAP_PRIVATE     0x02            /* Changes are private */
19: #define MAP_TYPE        0x0f            /* Mask for type of mapping */
20: #define MAP_FIXED       0x10            /* Interpret addr exactly */
21: #define MAP_ANONYMOUS   0x20            /* don't use a file */
22: #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
23: # define MAP_UNINITIALIZED 0x4000000    /* For anonymous mmap, memory could be uninitialized */
24: #else
25: # define MAP_UNINITIALIZED 0x0          /* Don't support this flag */
26: #endif
27: 
28: #define MS_ASYNC        1               /* sync memory asynchronously */
29: #define MS_INVALIDATE   2               /* invalidate the caches */
30: #define MS_SYNC         4               /* synchronous memory sync */
31: 
32: #define MADV_NORMAL     0               /* no further special treatment */
33: #define MADV_RANDOM     1               /* expect random page references */
34: #define MADV_SEQUENTIAL 2               /* expect sequential page references */
35: #define MADV_WILLNEED   3               /* will need these pages */
36: #define MADV_DONTNEED   4               /* don't need these pages */
37: 
38: /* common parameters: try to keep these consistent across architectures */
39: #define MADV_REMOVE     9               /* remove these pages & resources */
40: #define MADV_DONTFORK   10              /* don't inherit across fork */
41: #define MADV_DOFORK     11              /* do inherit across fork */
42: #define MADV_HWPOISON   100             /* poison a page for testing */
43: #define MADV_SOFT_OFFLINE 101           /* soft offline page for testing */
44: 
45: #define MADV_MERGEABLE   12             /* KSM may merge identical pages */
46: #define MADV_UNMERGEABLE 13             /* KSM may not merge identical pages */
47: 
48: #define MADV_HUGEPAGE   14              /* Worth backing with hugepages */
49: #define MADV_NOHUGEPAGE 15              /* Not worth backing with hugepages */
50: 
51: /* compatibility flags */
52: #define MAP_FILE        0
53: 
54: #endif /* __ASM_GENERIC_MMAN_COMMON_H */
55: 

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