1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef __PARISC_MMAN_H__ 3#define __PARISC_MMAN_H__ 4 5#define PROT_READ 0x1 /* page can be read */ 6#define PROT_WRITE 0x2 /* page can be written */ 7#define PROT_EXEC 0x4 /* page can be executed */ 8#define PROT_SEM 0x8 /* page may be used for atomic ops */ 9#define PROT_NONE 0x0 /* page can not be accessed */ 10#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ 11#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ 12 13/* 0x01 - 0x03 are defined in linux/mman.h */ 14#define MAP_TYPE 0x2b /* Mask for type of mapping, includes bits 0x08 and 0x20 */ 15#define MAP_FIXED 0x04 /* Interpret addr exactly */ 16#define MAP_ANONYMOUS 0x10 /* don't use a file */ 17 18#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ 19#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ 20#define MAP_LOCKED 0x2000 /* pages are locked */ 21#define MAP_NORESERVE 0x4000 /* don't check for reservations */ 22#define MAP_GROWSDOWN 0x8000 /* stack-like segment */ 23#define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ 24#define MAP_NONBLOCK 0x20000 /* do not block on IO */ 25#define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */ 26#define MAP_HUGETLB 0x80000 /* create a huge page mapping */ 27#define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED which doesn't unmap underlying mapping */ 28 29#define MS_SYNC 1 /* synchronous memory sync */ 30#define MS_ASYNC 2 /* sync memory asynchronously */ 31#define MS_INVALIDATE 4 /* invalidate the caches */ 32 33#define MCL_CURRENT 1 /* lock all current mappings */ 34#define MCL_FUTURE 2 /* lock all future mappings */ 35#define MCL_ONFAULT 4 /* lock all pages that are faulted in */ 36 37#define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ 38 39#define MADV_NORMAL 0 /* no further special treatment */ 40#define MADV_RANDOM 1 /* expect random page references */ 41#define MADV_SEQUENTIAL 2 /* expect sequential page references */ 42#define MADV_WILLNEED 3 /* will need these pages */ 43#define MADV_DONTNEED 4 /* don't need these pages */ 44 45/* common/generic parameters */ 46#define MADV_FREE 8 /* free pages only if memory pressure */ 47#define MADV_REMOVE 9 /* remove these pages & resources */ 48#define MADV_DONTFORK 10 /* don't inherit across fork */ 49#define MADV_DOFORK 11 /* do inherit across fork */ 50 51#define MADV_MERGEABLE 65 /* KSM may merge identical pages */ 52#define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */ 53 54#define MADV_HUGEPAGE 67 /* Worth backing with hugepages */ 55#define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */ 56 57#define MADV_DONTDUMP 69 /* Explicity exclude from the core dump, 58 overrides the coredump filter bits */ 59#define MADV_DODUMP 70 /* Clear the MADV_NODUMP flag */ 60 61#define MADV_WIPEONFORK 71 /* Zero memory on fork, child only */ 62#define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK */ 63 64#define MADV_HWPOISON 100 /* poison a page for testing */ 65#define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ 66 67/* compatibility flags */ 68#define MAP_FILE 0 69#define MAP_VARIABLE 0 70 71#define PKEY_DISABLE_ACCESS 0x1 72#define PKEY_DISABLE_WRITE 0x2 73#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ 74 PKEY_DISABLE_WRITE) 75 76#endif /* __PARISC_MMAN_H__ */ 77