diff options
Diffstat (limited to 'arch/parisc/include/uapi/asm/mman.h')
| -rw-r--r-- | arch/parisc/include/uapi/asm/mman.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h new file mode 100644 index 000000000..ef9b53b80 --- /dev/null +++ b/arch/parisc/include/uapi/asm/mman.h @@ -0,0 +1,79 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef __PARISC_MMAN_H__ +#define __PARISC_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 */ + +/* 0x01 - 0x03 are defined in linux/mman.h */ +#define MAP_TYPE 0x2b /* Mask for type of mapping, includes bits 0x08 and 0x20 */ +#define MAP_FIXED 0x04 /* Interpret addr exactly */ +#define MAP_ANONYMOUS 0x10 /* don't use a file */ + +#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ +#define MAP_LOCKED 0x2000 /* pages are locked */ +#define MAP_NORESERVE 0x4000 /* don't check for reservations */ +#define MAP_GROWSDOWN 0x8000 /* stack-like segment */ +#define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ +#define MAP_NONBLOCK 0x20000 /* do not block on IO */ +#define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x80000 /* create a huge page mapping */ +#define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED which doesn't unmap underlying mapping */ +#define MAP_UNINITIALIZED 0 /* uninitialized anonymous mmap */ + +#define MS_SYNC 1 /* synchronous memory sync */ +#define MS_ASYNC 2 /* sync memory asynchronously */ +#define MS_INVALIDATE 4 /* invalidate the caches */ + +#define MCL_CURRENT 1 /* lock all current mappings */ +#define MCL_FUTURE 2 /* lock all future mappings */ +#define MCL_ONFAULT 4 /* lock all pages that are faulted in */ + +#define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ + +#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/generic parameters */ +#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_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_NODUMP 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_HWPOISON 100 /* poison a page for testing */ +#define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ + +/* 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 /* __PARISC_MMAN_H__ */ |