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 #define MAP_UNINITIALIZED 0 /* uninitialized anonymous mmap */ 29 30 #define MS_SYNC 1 /* synchronous memory sync */ 31 #define MS_ASYNC 2 /* sync memory asynchronously */ 32 #define MS_INVALIDATE 4 /* invalidate the caches */ 33 34 #define MCL_CURRENT 1 /* lock all current mappings */ 35 #define MCL_FUTURE 2 /* lock all future mappings */ 36 #define MCL_ONFAULT 4 /* lock all pages that are faulted in */ 37 38 #define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ 39 40 #define MADV_NORMAL 0 /* no further special treatment */ 41 #define MADV_RANDOM 1 /* expect random page references */ 42 #define MADV_SEQUENTIAL 2 /* expect sequential page references */ 43 #define MADV_WILLNEED 3 /* will need these pages */ 44 #define MADV_DONTNEED 4 /* don't need these pages */ 45 46 /* common/generic parameters */ 47 #define MADV_FREE 8 /* free pages only if memory pressure */ 48 #define MADV_REMOVE 9 /* remove these pages & resources */ 49 #define MADV_DONTFORK 10 /* don't inherit across fork */ 50 #define MADV_DOFORK 11 /* do inherit across fork */ 51 52 #define MADV_COLD 20 /* deactivate these pages */ 53 #define MADV_PAGEOUT 21 /* reclaim these pages */ 54 55 #define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */ 56 #define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */ 57 58 #define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */ 59 60 #define MADV_MERGEABLE 65 /* KSM may merge identical pages */ 61 #define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */ 62 63 #define MADV_HUGEPAGE 67 /* Worth backing with hugepages */ 64 #define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */ 65 66 #define MADV_DONTDUMP 69 /* Explicity exclude from the core dump, 67 overrides the coredump filter bits */ 68 #define MADV_DODUMP 70 /* Clear the MADV_NODUMP flag */ 69 70 #define MADV_WIPEONFORK 71 /* Zero memory on fork, child only */ 71 #define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK */ 72 73 #define MADV_HWPOISON 100 /* poison a page for testing */ 74 #define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ 75 76 /* compatibility flags */ 77 #define MAP_FILE 0 78 #define MAP_VARIABLE 0 79 80 #define PKEY_DISABLE_ACCESS 0x1 81 #define PKEY_DISABLE_WRITE 0x2 82 #define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ 83 PKEY_DISABLE_WRITE) 84 85 #endif /* __PARISC_MMAN_H__ */ 86