include/asm-sparc/mman.h

   1 /* $Id: mman.h,v 1.9 2000/03/15 02:44:23 davem Exp $ */
   2 #ifndef __SPARC_MMAN_H__
   3 #define __SPARC_MMAN_H__
   4
   5 /* SunOS'ified... */
   6
   7 #define PROT_READ       0x1             /* page can be read */
   8 #define PROT_WRITE      0x2             /* page can be written */
   9 #define PROT_EXEC       0x4             /* page can be executed */
  10 #define PROT_SEM        0x8             /* page may be used for atomic ops */
  11 #define PROT_NONE       0x0             /* page can not be accessed */
  12 #define PROT_GROWSDOWN  0x01000000      /* mprotect flag: extend change to start of growsdown vma */
  13 #define PROT_GROWSUP    0x02000000      /* mprotect flag: extend change to end of growsup vma */
  14
  15 #define MAP_SHARED      0x01            /* Share changes */
  16 #define MAP_PRIVATE     0x02            /* Changes are private */
  17 #define MAP_TYPE        0x0f            /* Mask for type of mapping */
  18 #define MAP_FIXED       0x10            /* Interpret addr exactly */
  19 #define MAP_ANONYMOUS   0x20            /* don't use a file */
  20 #define MAP_RENAME      MAP_ANONYMOUS   /* In SunOS terminology */
  21 #define MAP_NORESERVE   0x40            /* don't reserve swap pages */
  22 #define MAP_INHERIT     0x80            /* SunOS doesn't do this, but... */
  23 #define MAP_LOCKED      0x100           /* lock the mapping */
  24 #define _MAP_NEW        0x80000000      /* Binary compatibility is fun... */
  25
  26 #define MAP_GROWSDOWN   0x0200          /* stack-like segment */
  27 #define MAP_DENYWRITE   0x0800          /* ETXTBSY */
  28 #define MAP_EXECUTABLE  0x1000          /* mark it as an executable */
  29
  30 #define MS_ASYNC        1               /* sync memory asynchronously */
  31 #define MS_INVALIDATE   2               /* invalidate the caches */
  32 #define MS_SYNC         4               /* synchronous memory sync */
  33
  34 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
  35 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
  36
  37 #define MAP_POPULATE    0x8000          /* populate (prefault) pagetables */
  38 #define MAP_NONBLOCK    0x10000         /* do not block on IO */
  39
  40 /* XXX Need to add flags to SunOS's mctl, mlockall, and madvise system
  41  * XXX calls.
  42  */
  43
  44 /* SunOS sys_mctl() stuff... */
  45 #define MC_SYNC         1  /* Sync pages in memory with storage (usu. a file) */
  46 #define MC_LOCK         2  /* Lock pages into core ram, do not allow swapping of them */
  47 #define MC_UNLOCK       3  /* Unlock pages locked via previous mctl() with MC_LOCK arg */
  48 #define MC_LOCKAS       5  /* Lock an entire address space of the calling process */
  49 #define MC_UNLOCKAS     6  /* Unlock entire address space of calling process */
  50
  51 #define MADV_NORMAL     0x0             /* default page-in behavior */
  52 #define MADV_RANDOM     0x1             /* page-in minimum required */
  53 #define MADV_SEQUENTIAL 0x2             /* read-ahead aggressively */
  54 #define MADV_WILLNEED   0x3             /* pre-fault pages */
  55 #define MADV_DONTNEED   0x4             /* discard these pages */
  56 #define MADV_FREE       0x5             /* (Solaris) contents can be freed */
  57
  58 /* compatibility flags */
  59 #define MAP_ANON        MAP_ANONYMOUS
  60 #define MAP_FILE        0
  61
  62 #endif /* __SPARC_MMAN_H__ */