include/asm-sh/mman.h

   1 #ifndef __ASM_SH_MMAN_H
   2 #define __ASM_SH_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_NONE       0x0             /* page can not be accessed */
   8
   9 #define MAP_SHARED      0x01            /* Share changes */
  10 #define MAP_PRIVATE     0x02            /* Changes are private */
  11 #define MAP_TYPE        0x0f            /* Mask for type of mapping */
  12 #define MAP_FIXED       0x10            /* Interpret addr exactly */
  13 #define MAP_ANONYMOUS   0x20            /* don't use a file */
  14
  15 #define MAP_GROWSDOWN   0x0100          /* stack-like segment */
  16 #define MAP_DENYWRITE   0x0800          /* ETXTBSY */
  17 #define MAP_EXECUTABLE  0x1000          /* mark it as an executable */
  18 #define MAP_LOCKED      0x2000          /* pages are locked */
  19 #define MAP_NORESERVE   0x4000          /* don't check for reservations */
  20
  21 #define MS_ASYNC        1               /* sync memory asynchronously */
  22 #define MS_INVALIDATE   2               /* invalidate the caches */
  23 #define MS_SYNC         4               /* synchronous memory sync */
  24
  25 #define MCL_CURRENT     1               /* lock all current mappings */
  26 #define MCL_FUTURE      2               /* lock all future mappings */
  27
  28 #define MADV_NORMAL     0x0             /* default page-in behavior */
  29 #define MADV_RANDOM     0x1             /* page-in minimum required */
  30 #define MADV_SEQUENTIAL 0x2             /* read-ahead aggressively */
  31 #define MADV_WILLNEED   0x3             /* pre-fault pages */
  32 #define MADV_DONTNEED   0x4             /* discard these pages */
  33
  34 /* compatibility flags */
  35 #define MAP_ANON        MAP_ANONYMOUS
  36 #define MAP_FILE        0
  37
  38 #endif /* __ASM_SH_MMAN_H */