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                <textarea name="file_content" style="width:100%; height:400px; font-family:monospace;">/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __ASM_GENERIC_MMAN_COMMON_H
#define __ASM_GENERIC_MMAN_COMMON_H

/*
 Author: Michael S. Tsirkin &lt;mst@mellanox.co.il&gt;, 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_SHARED_VALIDATE 0x03	/* share + validate extension flags */
#define MAP_TYPE	0x0f		/* Mask for type of mapping */
#define MAP_FIXED	0x10		/* Interpret addr exactly */
#define MAP_ANONYMOUS	0x20		/* don&#039;t use a file */

/* 0x0100 - 0x4000 flags are defined in asm-generic/mman.h */
#define MAP_POPULATE		0x008000	/* populate (prefault) pagetables */
#define MAP_NONBLOCK		0x010000	/* do not block on IO */
#define MAP_STACK		0x020000	/* give out an address that is best suited for process/thread stacks */
#define MAP_HUGETLB		0x040000	/* create a huge page mapping */
#define MAP_SYNC		0x080000 /* perform synchronous page faults for the mapping */
#define MAP_FIXED_NOREPLACE	0x100000	/* MAP_FIXED which doesn&#039;t unmap underlying mapping */

#define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
					 * uninitialized */

/*
 * Flags for mlock
 */
#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */

#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&#039;t need these pages */

/* common parameters: try to keep these consistent across architectures */
#define MADV_FREE	8		/* free pages only if memory pressure */
#define MADV_REMOVE	9		/* remove these pages &amp; resources */
#define MADV_DONTFORK	10		/* don&#039;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 */

#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_DONTDUMP flag */

#define MADV_WIPEONFORK 18		/* Zero memory on fork, child only */
#define MADV_KEEPONFORK 19		/* Undo MADV_WIPEONFORK */

#define MADV_COLD	20		/* deactivate these pages */
#define MADV_PAGEOUT	21		/* reclaim these pages */

/* compatibility flags */
#define MAP_FILE	0

#define PKEY_DISABLE_ACCESS	0x1
#define PKEY_DISABLE_WRITE	0x2
#define PKEY_ACCESS_MASK	(PKEY_DISABLE_ACCESS |\
				 PKEY_DISABLE_WRITE)

#endif /* __ASM_GENERIC_MMAN_COMMON_H */
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