linux/arch/blackfin/include/asm/mman.h

#ifndef __BFIN_MMAN_H__
#define __BFIN_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 */

#define MAP_GROWSDOWN	0x0100	/* stack-like segment */
#define MAP_DENYWRITE	0x0800	/* ETXTBSY */
#define MAP_EXECUTABLE	0x1000	/* mark it as an executable */
#define MAP_LOCKED	0x2000	/* pages are locked */
#define MAP_NORESERVE	0x4000	/* don't check for reservations */
#define MAP_POPULATE	0x8000	/* populate (prefault) pagetables */
#define MAP_NONBLOCK	0x10000	/* do not block on IO */

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

#define MCL_CURRENT	1	/* lock all current mappings */
#define MCL_FUTURE	2	/* lock all future mappings */

#define MADV_NORMAL	0x0	/* default page-in behavior */
#define MADV_RANDOM	0x1	/* page-in minimum required */
#define MADV_SEQUENTIAL	0x2	/* read-ahead aggressively */
#define MADV_WILLNEED	0x3	/* pre-fault pages */
#define MADV_DONTNEED	0x4	/* discard these pages */

/* compatibility flags */
#define MAP_ANON	MAP_ANONYMOUS
#define MAP_FILE	0

#endif				/* __BFIN_MMAN_H__ */