[net-next-2.6.git] / include / asm-generic / mman-common.h

#ifndef __ASM_GENERIC_MMAN_COMMON_H
#define __ASM_GENERIC_MMAN_COMMON_H

/*
 Author: Michael S. Tsirkin <mst@mellanox.co.il>, Mellanox Technologies Ltd.
 Based on: asm-xxx/mman.h
*/

#define PROT_READ	0x1		/* page can be read */
#define PROT_WRITE	0x2		/* page can be written */
#define PROT_EXEC	0x4		/* page can be executed */
#define PROT_SEM	0x8		/* page may be used for atomic ops */
#define PROT_NONE	0x0		/* page can not be accessed */
#define PROT_GROWSDOWN	0x01000000	/* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP	0x02000000	/* mprotect flag: extend change to end of growsup vma */

#define MAP_SHARED	0x01		/* Share changes */
#define MAP_PRIVATE	0x02		/* Changes are private */
#define MAP_TYPE	0x0f		/* Mask for type of mapping */
#define MAP_FIXED	0x10		/* Interpret addr exactly */
#define MAP_ANONYMOUS	0x20		/* don't use a file */
#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
# define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be uninitialized */
#else
# define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
#endif

#define MS_ASYNC	1		/* sync memory asynchronously */
#define MS_INVALIDATE	2		/* invalidate the caches */
#define MS_SYNC		4		/* synchronous memory sync */

#define MADV_NORMAL	0		/* no further special treatment */
#define MADV_RANDOM	1		/* expect random page references */
#define MADV_SEQUENTIAL	2		/* expect sequential page references */
#define MADV_WILLNEED	3		/* will need these pages */
#define MADV_DONTNEED	4		/* don't need these pages */

/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE	9		/* remove these pages & resources */
#define MADV_DONTFORK	10		/* don't inherit across fork */
#define MADV_DOFORK	11		/* do inherit across fork */
#define MADV_HWPOISON	100		/* poison a page for testing */
#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */

#define MADV_MERGEABLE   12		/* KSM may merge identical pages */
#define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */

/* compatibility flags */
#define MAP_FILE	0

#endif /* __ASM_GENERIC_MMAN_COMMON_H */
Commit	Line	Data
63b852a6 AB	1	#ifndef __ASM_GENERIC_MMAN_COMMON_H
63b852a6 AB	2	#define __ASM_GENERIC_MMAN_COMMON_H
5f6164f3 MT	3
	4	/*
	5	Author: Michael S. Tsirkin <mst@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 */
ea637639 JZ	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
5f6164f3 MT	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 */
9893e49d	42	#define MADV_HWPOISON 100 /* poison a page for testing */
afcf938e	43	#define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */
5f6164f3	44
d19f3524 HD	45	#define MADV_MERGEABLE 12 /* KSM may merge identical pages */
	46	#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */
	47
5f6164f3	48	/* compatibility flags */
5f6164f3 MT	49	#define MAP_FILE 0
5f6164f3 MT	50
63b852a6	51	#endif /* __ASM_GENERIC_MMAN_COMMON_H */