include/sys/mman.h

   1 #ifndef _SYS_MMAN_H_
   2 #define _SYS_MMAN_H_
   3
   4 #include <sys/featuretest.h>
   5
   6 #include <machine/ansi.h>
   7 #include <minix/type.h>
   8
   9 #ifdef  _BSD_SIZE_T_
  10 typedef _BSD_SIZE_T_    size_t;
  11 #undef  _BSD_SIZE_T_
  12 #endif
  13
  14 #include <sys/ansi.h>
  15
  16 #ifndef mode_t
  17 typedef __mode_t        mode_t;
  18 #define mode_t          __mode_t
  19 #endif
  20
  21 #ifndef off_t
  22 typedef __off_t         off_t;          /* file offset */
  23 #define off_t           __off_t
  24 #endif
  25
  26
  27 /*
  28  * Protections are chosen from these bits, or-ed together
  29  */
  30 #define PROT_NONE       0x00    /* no permissions */
  31 #define PROT_READ       0x01    /* pages can be read */
  32 #define PROT_WRITE      0x02    /* pages can be written */
  33 #define PROT_EXEC       0x04    /* pages can be executed */
  34
  35 /*
  36  * Flags contain sharing type and options.
  37  * Sharing types; choose one.
  38  */
  39 #ifndef __minix
  40 #define MAP_SHARED      0x0001  /* share changes */
  41 #endif
  42 #define MAP_PRIVATE     0x0002  /* changes are private */
  43
  44 /*
  45  * Mapping type
  46  */
  47 #define MAP_ANON        0x0004  /* anonymous memory */
  48
  49 /*
  50  * Minix specific flags.
  51  */
  52 #define MAP_PREALLOC    0x0008          /* not on-demand */
  53 #define MAP_CONTIG      0x0010          /* contiguous in physical memory */
  54 #define MAP_LOWER16M    0x0020          /* physically below 16MB */
  55 #define MAP_ALIGN64K    0x0040          /* physically aligned at 64kB */
  56 #define MAP_LOWER1M     0x0080          /* physically below 16MB */
  57 #define MAP_ALIGNMENT_64KB      MAP_ALIGN64K
  58
  59 #define MAP_FIXED      0x0200  /* require mapping to happen at hint */
  60 #define MAP_THIRDPARTY  0x0400          /* perform on behalf of any process */
  61 #define MAP_UNINITIALIZED 0x0800        /* do not clear memory */
  62
  63 /*
  64  * Error indicator returned by mmap(2)
  65  */
  66 #define MAP_FAILED      ((void *) -1)   /* mmap() failed */
  67
  68 #include <sys/cdefs.h>
  69
  70 __BEGIN_DECLS
  71 #ifndef __minix
  72 void *  mmap(void *, size_t, int, int, int, off_t);
  73 int     munmap(void *, size_t);
  74 #else
  75 void *  minix_mmap(void *, size_t, int, int, int, off_t);
  76 void *  minix_mmap_for(endpoint_t, void *, size_t, int, int, int, off_t);
  77 int     minix_munmap(void *, size_t);
  78 void *          vm_remap(int d, int s, void *da, void *sa, size_t si);
  79 void *          vm_remap_ro(int d, int s, void *da, void *sa, size_t si);
  80 int             vm_unmap(int endpt, void *addr);
  81 unsigned long   vm_getphys(int endpt, void *addr);
  82 u8_t            vm_getrefcount(int endpt, void *addr);
  83 #endif /* __minix */
  84 __END_DECLS
  85
  86 #endif /* !_SYS_MMAN_H_ */