include/asm-ppc64/mman.h

   1 #ifndef __PPC64_MMAN_H__
   2 #define __PPC64_MMAN_H__
   3
   4 /*
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version
   8  * 2 of the License, or (at your option) any later version.
   9  */
  10
  11 #define PROT_READ       0x1             /* page can be read */
  12 #define PROT_WRITE      0x2             /* page can be written */
  13 #define PROT_EXEC       0x4             /* page can be executed */
  14 #define PROT_SEM        0x8             /* page may be used for atomic ops */
  15 #define PROT_NONE       0x0             /* page can not be accessed */
  16 #define PROT_GROWSDOWN  0x01000000      /* mprotect flag: extend change to start of growsdown vma */
  17 #define PROT_GROWSUP    0x02000000      /* mprotect flag: extend change to end of growsup vma */
  18
  19 #define MAP_SHARED      0x01            /* Share changes */
  20 #define MAP_PRIVATE     0x02            /* Changes are private */
  21 #define MAP_TYPE        0x0f            /* Mask for type of mapping */
  22 #define MAP_FIXED       0x10            /* Interpret addr exactly */
  23 #define MAP_ANONYMOUS   0x20            /* don't use a file */
  24 #define MAP_RENAME      MAP_ANONYMOUS   /* In SunOS terminology */
  25 #define MAP_NORESERVE   0x40            /* don't reserve swap pages */
  26 #define MAP_LOCKED      0x80
  27
  28 #define MAP_GROWSDOWN   0x0100          /* stack-like segment */
  29 #define MAP_DENYWRITE   0x0800          /* ETXTBSY */
  30 #define MAP_EXECUTABLE  0x1000          /* mark it as an executable */
  31
  32 #define MS_ASYNC        1               /* sync memory asynchronously */
  33 #define MS_INVALIDATE   2               /* invalidate the caches */
  34 #define MS_SYNC         4               /* synchronous memory sync */
  35
  36 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
  37 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
  38
  39 #define MAP_POPULATE    0x8000          /* populate (prefault) pagetables */
  40 #define MAP_NONBLOCK    0x10000         /* do not block on IO */
  41
  42 #define MADV_NORMAL     0x0             /* default page-in behavior */
  43 #define MADV_RANDOM     0x1             /* page-in minimum required */
  44 #define MADV_SEQUENTIAL 0x2             /* read-ahead aggressively */
  45 #define MADV_WILLNEED   0x3             /* pre-fault pages */
  46 #define MADV_DONTNEED   0x4             /* discard these pages */
  47
  48 /* compatibility flags */
  49 #define MAP_ANON        MAP_ANONYMOUS
  50 #define MAP_FILE        0
  51
  52 #endif /* __PPC64_MMAN_H__ */