path: root/include/asm-ia64/mman.h

#ifndef _ASM_IA64_MMAN_H
#define _ASM_IA64_MMAN_H

/*
 * Based on <asm-i386/mman.h>.
 *
 * Modified 1998-2000, 2002
 *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
 */

#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	0x00100		/* stack-like segment */
#define MAP_GROWSUP	0x00200		/* register stack-like segment */
#define MAP_DENYWRITE	0x00800		/* ETXTBSY */
#define MAP_EXECUTABLE	0x01000		/* mark it as an executable */
#define MAP_LOCKED	0x02000		/* pages are locked */
#define MAP_NORESERVE	0x04000		/* don't check for reservations */
#define MAP_POPULATE	0x08000		/* 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 */
#define MADV_REMOVE	0x5		/* remove these pages & resources */
#define MADV_DONTFORK	0x30		/* dont inherit across fork */
#define MADV_DOFORK	0x31		/* do inherit across fork */

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

#endif /* _ASM_IA64_MMAN_H */