osfmk/mach/vm_attributes.h

   1 /*
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   4  * @APPLE_LICENSE_HEADER_START@
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  10  * Version 2.0 (the 'License'). You may not use this file except in
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  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
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  25 /*
  26  * @OSF_COPYRIGHT@
  27  */
  28 /*
  29  * Mach Operating System
  30  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  31  * All Rights Reserved.
  32  *
  33  * Permission to use, copy, modify and distribute this software and its
  34  * documentation is hereby granted, provided that both the copyright
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  37  * thereof, and that both notices appear in supporting documentation.
  38  *
  39  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  40  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  41  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  42  *
  43  * Carnegie Mellon requests users of this software to return to
  44  *
  45  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  46  *  School of Computer Science
  47  *  Carnegie Mellon University
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  50  * any improvements or extensions that they make and grant Carnegie Mellon
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  52  */
  53 /*
  54  */
  55 /*
  56  *      File:   mach/vm_attributes.h
  57  *      Author: Alessandro Forin
  58  *
  59  *      Virtual memory attributes definitions.
  60  *
  61  *      These definitions are in addition to the machine-independent
  62  *      ones (e.g. protection), and are only selectively supported
  63  *      on specific machine architectures.
  64  *
  65  */
  66
  67 #ifndef VM_ATTRIBUTES_H_
  68 #define VM_ATTRIBUTES_H_
  69
  70 /*
  71  *      Types of machine-dependent attributes
  72  */
  73 typedef unsigned int    vm_machine_attribute_t;
  74
  75 #define MATTR_CACHE             1       /* cachability */
  76 #define MATTR_MIGRATE           2       /* migrability */
  77 #define MATTR_REPLICATE         4       /* replicability */
  78
  79 /*
  80  *      Values for the above, e.g. operations on attribute
  81  */
  82 typedef int             vm_machine_attribute_val_t;
  83
  84 #define MATTR_VAL_OFF           0       /* (generic) turn attribute off */
  85 #define MATTR_VAL_ON            1       /* (generic) turn attribute on */
  86 #define MATTR_VAL_GET           2       /* (generic) return current value */
  87
  88 #define MATTR_VAL_CACHE_FLUSH   6       /* flush from all caches */
  89 #define MATTR_VAL_DCACHE_FLUSH  7       /* flush from data caches */
  90 #define MATTR_VAL_ICACHE_FLUSH  8       /* flush from instruction caches */
  91 #define MATTR_VAL_CACHE_SYNC    9       /* sync I+D caches */
  92 #define MATTR_VAL_CACHE_SYNC    9       /* sync I+D caches */
  93
  94 #define MATTR_VAL_GET_INFO      10      /* get page info (stats) */
  95
  96 #endif  /* VM_ATTRIBUTES_H_ */