1 #ifndef __PARISC_MMAN_H__ 2 #define __PARISC_MMAN_H__ 3 4 #define PROT_READ 0x1 /* page can be read */ 5 #define PROT_WRITE 0x2 /* page can be written */ 6 #define PROT_EXEC 0x4 /* page can be executed */ 7 #define PROT_SEM 0x8 /* page may be used for atomic ops */ 8 #define PROT_NONE 0x0 /* page can not be accessed */ 9 #define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ 10 #define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ 11 12 #define MAP_SHARED 0x01 /* Share changes */ 13 #define MAP_PRIVATE 0x02 /* Changes are private */ 14 #define MAP_TYPE 0x03 /* Mask for type of mapping */ 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 28 #define MS_SYNC 1 /* synchronous memory sync */ 29 #define MS_ASYNC 2 /* sync memory asynchronously */ 30 #define MS_INVALIDATE 4 /* invalidate the caches */ 31 32 #define MCL_CURRENT 1 /* lock all current mappings */ 33 #define MCL_FUTURE 2 /* lock all future mappings */ 34 35 #define MADV_NORMAL 0 /* no further special treatment */ 36 #define MADV_RANDOM 1 /* expect random page references */ 37 #define MADV_SEQUENTIAL 2 /* expect sequential page references */ 38 #define MADV_WILLNEED 3 /* will need these pages */ 39 #define MADV_DONTNEED 4 /* don't need these pages */ 40 #define MADV_SPACEAVAIL 5 /* insure that resources are reserved */ 41 #define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */ 42 #define MADV_VPS_INHERIT 7 /* Inherit parents page size */ 43 44 /* common/generic parameters */ 45 #define MADV_REMOVE 9 /* remove these pages & resources */ 46 #define MADV_DONTFORK 10 /* don't inherit across fork */ 47 #define MADV_DOFORK 11 /* do inherit across fork */ 48 49 /* The range 12-64 is reserved for page size specification. */ 50 #define MADV_4K_PAGES 12 /* Use 4K pages */ 51 #define MADV_16K_PAGES 14 /* Use 16K pages */ 52 #define MADV_64K_PAGES 16 /* Use 64K pages */ 53 #define MADV_256K_PAGES 18 /* Use 256K pages */ 54 #define MADV_1M_PAGES 20 /* Use 1 Megabyte pages */ 55 #define MADV_4M_PAGES 22 /* Use 4 Megabyte pages */ 56 #define MADV_16M_PAGES 24 /* Use 16 Megabyte pages */ 57 #define MADV_64M_PAGES 26 /* Use 64 Megabyte pages */ 58 59 #define MADV_MERGEABLE 65 /* KSM may merge identical pages */ 60 #define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */ 61 62 #define MADV_HUGEPAGE 67 /* Worth backing with hugepages */ 63 #define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */ 64 65 #define MADV_DONTDUMP 69 /* Explicity exclude from the core dump, 66 overrides the coredump filter bits */ 67 #define MADV_DODUMP 70 /* Clear the MADV_NODUMP flag */ 68 69 /* compatibility flags */ 70 #define MAP_FILE 0 71 #define MAP_VARIABLE 0 72 73 /* 74 * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size. 75 * This gives us 6 bits, which is enough until someone invents 128 bit address 76 * spaces. 77 * 78 * Assume these are all power of twos. 79 * When 0 use the default page size. 80 */ 81 #define MAP_HUGE_SHIFT 26 82 #define MAP_HUGE_MASK 0x3f 83 84 #endif /* __PARISC_MMAN_H__ */ 85