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root/include/asm-parisc/mman.h

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INCLUDED FROM


#ifndef __PARISC_MMAN_H__
#define __PARISC_MMAN_H__

#define PROT_READ       0x1             /* page can be read */
#define PROT_WRITE      0x2             /* page can be written */
#define PROT_EXEC       0x4             /* page can be executed */
#define PROT_SEM        0x8             /* page may be used for atomic ops */
#define PROT_NONE       0x0             /* page can not be accessed */
#define PROT_GROWSDOWN  0x01000000      /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP    0x02000000      /* mprotect flag: extend change to end of growsup vma */

#define MAP_SHARED      0x01            /* Share changes */
#define MAP_PRIVATE     0x02            /* Changes are private */
#define MAP_TYPE        0x03            /* Mask for type of mapping */
#define MAP_FIXED       0x04            /* Interpret addr exactly */
#define MAP_ANONYMOUS   0x10            /* don't use a file */

#define MAP_DENYWRITE   0x0800          /* ETXTBSY */
#define MAP_EXECUTABLE  0x1000          /* mark it as an executable */
#define MAP_LOCKED      0x2000          /* pages are locked */
#define MAP_NORESERVE   0x4000          /* don't check for reservations */
#define MAP_GROWSDOWN   0x8000          /* stack-like segment */
#define MAP_POPULATE    0x10000         /* populate (prefault) pagetables */
#define MAP_NONBLOCK    0x20000         /* do not block on IO */

#define MS_SYNC         1               /* synchronous memory sync */
#define MS_ASYNC        2               /* sync memory asynchronously */
#define MS_INVALIDATE   4               /* invalidate the caches */

#define MCL_CURRENT     1               /* lock all current mappings */
#define MCL_FUTURE      2               /* lock all future mappings */

#define MADV_NORMAL     0               /* no further special treatment */
#define MADV_RANDOM     1               /* expect random page references */
#define MADV_SEQUENTIAL 2               /* expect sequential page references */
#define MADV_WILLNEED   3               /* will need these pages */
#define MADV_DONTNEED   4               /* don't need these pages */
#define MADV_SPACEAVAIL 5               /* insure that resources are reserved */
#define MADV_VPS_PURGE  6               /* Purge pages from VM page cache */
#define MADV_VPS_INHERIT 7              /* Inherit parents page size */

/* common/generic parameters */
#define MADV_REMOVE     9               /* remove these pages & resources */
#define MADV_DONTFORK   10              /* don't inherit across fork */
#define MADV_DOFORK     11              /* do inherit across fork */

/* The range 12-64 is reserved for page size specification. */
#define MADV_4K_PAGES   12              /* Use 4K pages  */
#define MADV_16K_PAGES  14              /* Use 16K pages */
#define MADV_64K_PAGES  16              /* Use 64K pages */
#define MADV_256K_PAGES 18              /* Use 256K pages */
#define MADV_1M_PAGES   20              /* Use 1 Megabyte pages */
#define MADV_4M_PAGES   22              /* Use 4 Megabyte pages */
#define MADV_16M_PAGES  24              /* Use 16 Megabyte pages */
#define MADV_64M_PAGES  26              /* Use 64 Megabyte pages */

/* compatibility flags */
#define MAP_FILE        0
#define MAP_VARIABLE    0

#endif /* __PARISC_MMAN_H__ */

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