[people/ms/linux.git] / include / asm-s390 / mman.h

/*
 *  include/asm-s390/mman.h
 *
 *  S390 version
 *
 *  Derived from "include/asm-i386/mman.h"
 */

#ifndef __S390_MMAN_H__
#define __S390_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 /* __S390_MMAN_H__ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* include/asm-s390/mman.h
	3	*
	4	* S390 version
	5	*
	6	* Derived from "include/asm-i386/mman.h"
	7	*/
	8
	9	#ifndef __S390_MMAN_H__
	10	#define __S390_MMAN_H__
	11
	12	#define PROT_READ 0x1 /* page can be read */
	13	#define PROT_WRITE 0x2 /* page can be written */
	14	#define PROT_EXEC 0x4 /* page can be executed */
	15	#define PROT_SEM 0x8 /* page may be used for atomic ops */
	16	#define PROT_NONE 0x0 /* page can not be accessed */
	17	#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
	18	#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
	19
	20	#define MAP_SHARED 0x01 /* Share changes */
	21	#define MAP_PRIVATE 0x02 /* Changes are private */
	22	#define MAP_TYPE 0x0f /* Mask for type of mapping */
	23	#define MAP_FIXED 0x10 /* Interpret addr exactly */
	24	#define MAP_ANONYMOUS 0x20 /* don't use a file */
	25
	26	#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
	27	#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
	28	#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
	29	#define MAP_LOCKED 0x2000 /* pages are locked */
	30	#define MAP_NORESERVE 0x4000 /* don't check for reservations */
	31	#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
	32	#define MAP_NONBLOCK 0x10000 /* do not block on IO */
	33
	34	#define MS_ASYNC 1 /* sync memory asynchronously */
	35	#define MS_INVALIDATE 2 /* invalidate the caches */
	36	#define MS_SYNC 4 /* synchronous memory sync */
	37
	38	#define MCL_CURRENT 1 /* lock all current mappings */
	39	#define MCL_FUTURE 2 /* lock all future mappings */
	40
	41	#define MADV_NORMAL 0x0 /* default page-in behavior */
	42	#define MADV_RANDOM 0x1 /* page-in minimum required */
	43	#define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */
	44	#define MADV_WILLNEED 0x3 /* pre-fault pages */
	45	#define MADV_DONTNEED 0x4 /* discard these pages */
	46
	47	/* compatibility flags */
	48	#define MAP_ANON MAP_ANONYMOUS
	49	#define MAP_FILE 0
	50
	51	#endif /* __S390_MMAN_H__ */