1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef __PARISC_MMAN_H__ 3*4882a593Smuzhiyun #define __PARISC_MMAN_H__ 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #define PROT_READ 0x1 /* page can be read */ 6*4882a593Smuzhiyun #define PROT_WRITE 0x2 /* page can be written */ 7*4882a593Smuzhiyun #define PROT_EXEC 0x4 /* page can be executed */ 8*4882a593Smuzhiyun #define PROT_SEM 0x8 /* page may be used for atomic ops */ 9*4882a593Smuzhiyun #define PROT_NONE 0x0 /* page can not be accessed */ 10*4882a593Smuzhiyun #define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ 11*4882a593Smuzhiyun #define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* 0x01 - 0x03 are defined in linux/mman.h */ 14*4882a593Smuzhiyun #define MAP_TYPE 0x2b /* Mask for type of mapping, includes bits 0x08 and 0x20 */ 15*4882a593Smuzhiyun #define MAP_FIXED 0x04 /* Interpret addr exactly */ 16*4882a593Smuzhiyun #define MAP_ANONYMOUS 0x10 /* don't use a file */ 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ 19*4882a593Smuzhiyun #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ 20*4882a593Smuzhiyun #define MAP_LOCKED 0x2000 /* pages are locked */ 21*4882a593Smuzhiyun #define MAP_NORESERVE 0x4000 /* don't check for reservations */ 22*4882a593Smuzhiyun #define MAP_GROWSDOWN 0x8000 /* stack-like segment */ 23*4882a593Smuzhiyun #define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ 24*4882a593Smuzhiyun #define MAP_NONBLOCK 0x20000 /* do not block on IO */ 25*4882a593Smuzhiyun #define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */ 26*4882a593Smuzhiyun #define MAP_HUGETLB 0x80000 /* create a huge page mapping */ 27*4882a593Smuzhiyun #define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED which doesn't unmap underlying mapping */ 28*4882a593Smuzhiyun #define MAP_UNINITIALIZED 0 /* uninitialized anonymous mmap */ 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #define MS_SYNC 1 /* synchronous memory sync */ 31*4882a593Smuzhiyun #define MS_ASYNC 2 /* sync memory asynchronously */ 32*4882a593Smuzhiyun #define MS_INVALIDATE 4 /* invalidate the caches */ 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #define MCL_CURRENT 1 /* lock all current mappings */ 35*4882a593Smuzhiyun #define MCL_FUTURE 2 /* lock all future mappings */ 36*4882a593Smuzhiyun #define MCL_ONFAULT 4 /* lock all pages that are faulted in */ 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun #define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun #define MADV_NORMAL 0 /* no further special treatment */ 41*4882a593Smuzhiyun #define MADV_RANDOM 1 /* expect random page references */ 42*4882a593Smuzhiyun #define MADV_SEQUENTIAL 2 /* expect sequential page references */ 43*4882a593Smuzhiyun #define MADV_WILLNEED 3 /* will need these pages */ 44*4882a593Smuzhiyun #define MADV_DONTNEED 4 /* don't need these pages */ 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* common/generic parameters */ 47*4882a593Smuzhiyun #define MADV_FREE 8 /* free pages only if memory pressure */ 48*4882a593Smuzhiyun #define MADV_REMOVE 9 /* remove these pages & resources */ 49*4882a593Smuzhiyun #define MADV_DONTFORK 10 /* don't inherit across fork */ 50*4882a593Smuzhiyun #define MADV_DOFORK 11 /* do inherit across fork */ 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun #define MADV_COLD 20 /* deactivate these pages */ 53*4882a593Smuzhiyun #define MADV_PAGEOUT 21 /* reclaim these pages */ 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun #define MADV_MERGEABLE 65 /* KSM may merge identical pages */ 56*4882a593Smuzhiyun #define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */ 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun #define MADV_HUGEPAGE 67 /* Worth backing with hugepages */ 59*4882a593Smuzhiyun #define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */ 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun #define MADV_DONTDUMP 69 /* Explicity exclude from the core dump, 62*4882a593Smuzhiyun overrides the coredump filter bits */ 63*4882a593Smuzhiyun #define MADV_DODUMP 70 /* Clear the MADV_NODUMP flag */ 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun #define MADV_WIPEONFORK 71 /* Zero memory on fork, child only */ 66*4882a593Smuzhiyun #define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK */ 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun #define MADV_HWPOISON 100 /* poison a page for testing */ 69*4882a593Smuzhiyun #define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun /* compatibility flags */ 72*4882a593Smuzhiyun #define MAP_FILE 0 73*4882a593Smuzhiyun #define MAP_VARIABLE 0 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun #define PKEY_DISABLE_ACCESS 0x1 76*4882a593Smuzhiyun #define PKEY_DISABLE_WRITE 0x2 77*4882a593Smuzhiyun #define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ 78*4882a593Smuzhiyun PKEY_DISABLE_WRITE) 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun #endif /* __PARISC_MMAN_H__ */ 81