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      1 #ifndef __ASM_GENERIC_MMAN_COMMON_H
      2 #define __ASM_GENERIC_MMAN_COMMON_H
      3 
      4 /*
      5  Author: Michael S. Tsirkin <mst (at) mellanox.co.il>, Mellanox Technologies Ltd.
      6  Based on: asm-xxx/mman.h
      7 */
      8 
      9 #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 
     23 #define MS_ASYNC	1		/* sync memory asynchronously */
     24 #define MS_INVALIDATE	2		/* invalidate the caches */
     25 #define MS_SYNC		4		/* synchronous memory sync */
     26 
     27 #define MADV_NORMAL	0		/* no further special treatment */
     28 #define MADV_RANDOM	1		/* expect random page references */
     29 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
     30 #define MADV_WILLNEED	3		/* will need these pages */
     31 #define MADV_DONTNEED	4		/* don't need these pages */
     32 
     33 /* common parameters: try to keep these consistent across architectures */
     34 #define MADV_REMOVE	9		/* remove these pages & resources */
     35 #define MADV_DONTFORK	10		/* don't inherit across fork */
     36 #define MADV_DOFORK	11		/* do inherit across fork */
     37 #define MADV_HWPOISON	100		/* poison a page for testing */
     38 
     39 #define MADV_MERGEABLE   12		/* KSM may merge identical pages */
     40 #define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
     41 
     42 /* compatibility flags */
     43 #define MAP_FILE	0
     44 
     45 #endif /* __ASM_GENERIC_MMAN_COMMON_H */
     46