osfmk/mach/vm_attributes.h

   1 /*
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   3  *
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   5  *
   6  * The contents of this file constitute Original Code as defined in and
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  10  * http://www.apple.com/publicsource and read it before using this file.
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  21  */
  22 /*
  23  * @OSF_COPYRIGHT@
  24  */
  25 /*
  26  * Mach Operating System
  27  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  28  * All Rights Reserved.
  29  *
  30  * Permission to use, copy, modify and distribute this software and its
  31  * documentation is hereby granted, provided that both the copyright
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  33  * software, derivative works or modified versions, and any portions
  34  * thereof, and that both notices appear in supporting documentation.
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  36  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  37  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  38  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  39  *
  40  * Carnegie Mellon requests users of this software to return to
  41  *
  42  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  43  *  School of Computer Science
  44  *  Carnegie Mellon University
  45  *  Pittsburgh PA 15213-3890
  46  *
  47  * any improvements or extensions that they make and grant Carnegie Mellon
  48  * the rights to redistribute these changes.
  49  */
  50 /*
  51  */
  52 /*
  53  *      File:   mach/vm_attributes.h
  54  *      Author: Alessandro Forin
  55  *
  56  *      Virtual memory attributes definitions.
  57  *
  58  *      These definitions are in addition to the machine-independent
  59  *      ones (e.g. protection), and are only selectively supported
  60  *      on specific machine architectures.
  61  *
  62  */
  63
  64 #ifndef VM_ATTRIBUTES_H_
  65 #define VM_ATTRIBUTES_H_
  66
  67 /*
  68  *      Types of machine-dependent attributes
  69  */
  70 typedef unsigned int    vm_machine_attribute_t;
  71
  72 #define MATTR_CACHE             1       /* cachability */
  73 #define MATTR_MIGRATE           2       /* migrability */
  74 #define MATTR_REPLICATE         4       /* replicability */
  75
  76 /*
  77  *      Values for the above, e.g. operations on attribute
  78  */
  79 typedef int             vm_machine_attribute_val_t;
  80
  81 #define MATTR_VAL_OFF           0       /* (generic) turn attribute off */
  82 #define MATTR_VAL_ON            1       /* (generic) turn attribute on */
  83 #define MATTR_VAL_GET           2       /* (generic) return current value */
  84
  85 #define MATTR_VAL_CACHE_FLUSH   6       /* flush from all caches */
  86 #define MATTR_VAL_DCACHE_FLUSH  7       /* flush from data caches */
  87 #define MATTR_VAL_ICACHE_FLUSH  8       /* flush from instruction caches */
  88 #define MATTR_VAL_CACHE_SYNC    9       /* sync I+D caches */
  89 #define MATTR_VAL_CACHE_SYNC    9       /* sync I+D caches */
  90
  91 #define MATTR_VAL_GET_INFO      10      /* get page info (stats) */
  92
  93 #endif  /* VM_ATTRIBUTES_H_ */