1 #ifndef __PARISC_MMAN_H__
2 #define __PARISC_MMAN_H__
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 */
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 */
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 */
28 #define MS_SYNC 1 /* synchronous memory sync */
29 #define MS_ASYNC 2 /* sync memory asynchronously */
30 #define MS_INVALIDATE 4 /* invalidate the caches */
32 #define MCL_CURRENT 1 /* lock all current mappings */
33 #define MCL_FUTURE 2 /* lock all future mappings */
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 */
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 */
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 */
59 #define MADV_MERGEABLE 65 /* KSM may merge identical pages */
60 #define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */
62 #define MADV_HUGEPAGE 67 /* Worth backing with hugepages */
63 #define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */
65 /* compatibility flags */
67 #define MAP_VARIABLE 0
69 #endif /* __PARISC_MMAN_H__ */
