/* 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 <mst@mellanox.co.il>, 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 *//*			0x10		   reserved for arch-specific use *//*			0x20		   reserved for arch-specific use */#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 */ /* 0x01 - 0x03 are defined in linux/mman.h */#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 */ /* 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'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'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 & resources */#define MADV_DONTFORK	10		/* don'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 */ #define MADV_POPULATE_READ	22	/* populate (prefault) page tables readable */#define MADV_POPULATE_WRITE	23	/* populate (prefault) page tables writable */ #define MADV_DONTNEED_LOCKED	24	/* like DONTNEED, but drop locked pages too */ #define MADV_COLLAPSE	25		/* Synchronous hugepage collapse */ #define MADV_GUARD_INSTALL 102		/* fatal signal on access to range */#define MADV_GUARD_REMOVE 103		/* unguard range */ /* compatibility flags */#define MAP_FILE	0 #define PKEY_UNRESTRICTED	0x0#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 */