xnu-7195.101.1.tar.gz

[apple/xnu.git] / osfmk / mach / vm_attributes.h

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/*
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
 * All Rights Reserved.
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/*
 */
/*
 *	File:	mach/vm_attributes.h
 *	Author:	Alessandro Forin
 *
 *	Virtual memory attributes definitions.
 *
 *	These definitions are in addition to the machine-independent
 *	ones (e.g. protection), and are only selectively supported
 *	on specific machine architectures.
 *
 */

#ifndef _MACH_VM_ATTRIBUTES_H_
#define _MACH_VM_ATTRIBUTES_H_

/*
 *	Types of machine-dependent attributes
 */
typedef unsigned int    vm_machine_attribute_t;

#define MATTR_CACHE             1       /* cachability */
#define MATTR_MIGRATE           2       /* migrability */
#define MATTR_REPLICATE         4       /* replicability */

/*
 *	Values for the above, e.g. operations on attribute
 */
typedef int             vm_machine_attribute_val_t;

#define MATTR_VAL_OFF           0       /* (generic) turn attribute off */
#define MATTR_VAL_ON            1       /* (generic) turn attribute on */
#define MATTR_VAL_GET           2       /* (generic) return current value */

#define MATTR_VAL_CACHE_FLUSH   6       /* flush from all caches */
#define MATTR_VAL_DCACHE_FLUSH  7       /* flush from data caches */
#define MATTR_VAL_ICACHE_FLUSH  8       /* flush from instruction caches */
#define MATTR_VAL_CACHE_SYNC    9       /* sync I+D caches */
#define MATTR_VAL_CACHE_SYNC    9       /* sync I+D caches */

#define MATTR_VAL_GET_INFO      10      /* get page info (stats) */

#endif  /* _MACH_VM_ATTRIBUTES_H_ */