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Diffstat (limited to 'arch/parisc/include/asm/mman.h')
| -rw-r--r-- | arch/parisc/include/asm/mman.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/mman.h b/arch/parisc/include/asm/mman.h new file mode 100644 index 00000000..f5b7bf5f --- /dev/null +++ b/arch/parisc/include/asm/mman.h @@ -0,0 +1,69 @@ +#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 */ + +#define MAP_SHARED 0x01 /* Share changes */ +#define MAP_PRIVATE 0x02 /* Changes are private */ +#define MAP_TYPE 0x03 /* Mask for type of mapping */ +#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 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 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 */ +#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */ +#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */ +#define MADV_VPS_INHERIT 7 /* Inherit parents page size */ + +/* common/generic parameters */ +#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 */ + +/* The range 12-64 is reserved for page size specification. */ +#define MADV_4K_PAGES 12 /* Use 4K pages */ +#define MADV_16K_PAGES 14 /* Use 16K pages */ +#define MADV_64K_PAGES 16 /* Use 64K pages */ +#define MADV_256K_PAGES 18 /* Use 256K pages */ +#define MADV_1M_PAGES 20 /* Use 1 Megabyte pages */ +#define MADV_4M_PAGES 22 /* Use 4 Megabyte pages */ +#define MADV_16M_PAGES 24 /* Use 16 Megabyte pages */ +#define MADV_64M_PAGES 26 /* Use 64 Megabyte pages */ + +#define MADV_MERGEABLE 65 /* KSM may merge identical pages */ +#define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */ + +#define MADV_HUGEPAGE 67 /* Worth backing with hugepages */ +#define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */ + +/* compatibility flags */ +#define MAP_FILE 0 +#define MAP_VARIABLE 0 + +#endif /* __PARISC_MMAN_H__ */ |