[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / alpha / include / asm / mman.h

#ifndef __ALPHA_MMAN_H__
#define __ALPHA_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 (OSF/1 is _wrong_) */
#define MAP_FIXED	0x100		/* Interpret addr exactly */
#define MAP_ANONYMOUS	0x10		/* don't use a file */

/* not used by linux, but here to make sure we don't clash with OSF/1 defines */
#define _MAP_HASSEMAPHORE 0x0200
#define _MAP_INHERIT	0x0400
#define _MAP_UNALIGNED	0x0800

/* These are linux-specific */
#define MAP_GROWSDOWN	0x01000		/* stack-like segment */
#define MAP_DENYWRITE	0x02000		/* ETXTBSY */
#define MAP_EXECUTABLE	0x04000		/* mark it as an executable */
#define MAP_LOCKED	0x08000		/* lock the mapping */
#define MAP_NORESERVE	0x10000		/* don't check for reservations */
#define MAP_POPULATE	0x20000		/* populate (prefault) pagetables */
#define MAP_NONBLOCK	0x40000		/* do not block on IO */
#define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
#define MAP_HUGETLB	0x100000	/* create a huge page mapping */

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

#define MCL_CURRENT	 8192		/* lock all currently mapped pages */
#define MCL_FUTURE	16384		/* lock all additions to address space */

#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_SPACEAVAIL	5		/* ensure resources are available */
#define MADV_DONTNEED	6		/* don't need these pages */

/* common/generic parameters */
#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_MERGEABLE   12		/* KSM may merge identical pages */
#define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */

#define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
#define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */

#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
					   overrides the coredump filter bits */
#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */

/* compatibility flags */
#define MAP_FILE	0

/*
 * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.
 * This gives us 6 bits, which is enough until someone invents 128 bit address
 * spaces.
 *
 * Assume these are all power of twos.
 * When 0 use the default page size.
 */
#define MAP_HUGE_SHIFT	26
#define MAP_HUGE_MASK	0x3f

#endif /* __ALPHA_MMAN_H__ */
Commit	Line	Data
1da177e4 LT	1	#ifndef __ALPHA_MMAN_H__
	2	#define __ALPHA_MMAN_H__
	3
	4	#define PROT_READ 0x1 /* page can be read */
	5	#define PROT_WRITE 0x2 /* page can be written */
	6	#define PROT_EXEC 0x4 /* page can be executed */
	7	#define PROT_SEM 0x8 /* page may be used for atomic ops */
	8	#define PROT_NONE 0x0 /* page can not be accessed */
	9	#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
	10	#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
	11
	12	#define MAP_SHARED 0x01 /* Share changes */
	13	#define MAP_PRIVATE 0x02 /* Changes are private */
	14	#define MAP_TYPE 0x0f /* Mask for type of mapping (OSF/1 is _wrong_) */
	15	#define MAP_FIXED 0x100 /* Interpret addr exactly */
	16	#define MAP_ANONYMOUS 0x10 /* don't use a file */
	17
	18	/* not used by linux, but here to make sure we don't clash with OSF/1 defines */
	19	#define _MAP_HASSEMAPHORE 0x0200
	20	#define _MAP_INHERIT 0x0400
	21	#define _MAP_UNALIGNED 0x0800
	22
	23	/* These are linux-specific */
	24	#define MAP_GROWSDOWN 0x01000 /* stack-like segment */
	25	#define MAP_DENYWRITE 0x02000 /* ETXTBSY */
	26	#define MAP_EXECUTABLE 0x04000 /* mark it as an executable */
	27	#define MAP_LOCKED 0x08000 /* lock the mapping */
	28	#define MAP_NORESERVE 0x10000 /* don't check for reservations */
	29	#define MAP_POPULATE 0x20000 /* populate (prefault) pagetables */
	30	#define MAP_NONBLOCK 0x40000 /* do not block on IO */
90f72aa5 AB	31	#define MAP_STACK 0x80000 /* give out an address that is best suited for process/thread stacks */
90f72aa5 AB	32	#define MAP_HUGETLB 0x100000 /* create a huge page mapping */
1da177e4 LT	33
	34	#define MS_ASYNC 1 /* sync memory asynchronously */
	35	#define MS_SYNC 2 /* synchronous memory sync */
	36	#define MS_INVALIDATE 4 /* invalidate the caches */
	37
	38	#define MCL_CURRENT 8192 /* lock all currently mapped pages */
	39	#define MCL_FUTURE 16384 /* lock all additions to address space */
	40
	41	#define MADV_NORMAL 0 /* no further special treatment */
	42	#define MADV_RANDOM 1 /* expect random page references */
	43	#define MADV_SEQUENTIAL 2 /* expect sequential page references */
	44	#define MADV_WILLNEED 3 /* will need these pages */
	45	#define MADV_SPACEAVAIL 5 /* ensure resources are available */
	46	#define MADV_DONTNEED 6 /* don't need these pages */
5f6164f3 MT	47
	48	/* common/generic parameters */
	49	#define MADV_REMOVE 9 /* remove these pages & resources */
	50	#define MADV_DONTFORK 10 /* don't inherit across fork */
	51	#define MADV_DOFORK 11 /* do inherit across fork */
1da177e4	52
d19f3524 HD	53	#define MADV_MERGEABLE 12 /* KSM may merge identical pages */
	54	#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */
	55
a826e422	56	#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */
1ddd6db4	57	#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */
a826e422	58
accb61fe JB	59	#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump,
	60	overrides the coredump filter bits */
	61	#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */
	62
1da177e4	63	/* compatibility flags */
1da177e4 LT	64	#define MAP_FILE 0
1da177e4 LT	65
42d7395f AK	66	/*
	67	* When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.
	68	* This gives us 6 bits, which is enough until someone invents 128 bit address
	69	* spaces.
	70	*
	71	* Assume these are all power of twos.
	72	* When 0 use the default page size.
	73	*/
	74	#define MAP_HUGE_SHIFT 26
	75	#define MAP_HUGE_MASK 0x3f
	76
1da177e4	77	#endif /* __ALPHA_MMAN_H__ */