[apple/xnu.git] / osfmk / kern / kalloc.h

/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */

#ifdef	KERNEL_PRIVATE

#ifndef	_KERN_KALLOC_H_
#define _KERN_KALLOC_H_

#include <mach/machine/vm_types.h>
#include <sys/cdefs.h>

__BEGIN_DECLS

extern void *kalloc(vm_size_t	size);

extern void *kalloc_noblock(vm_size_t	size);

extern void *kget(vm_size_t	size);

extern void kfree(void		*data,
		  vm_size_t	size);

__END_DECLS

#ifdef	MACH_KERNEL_PRIVATE

#include <kern/lock.h>

#define KALLOC_MINSIZE		16

extern void		kalloc_init(void) __attribute__((section("__TEXT, initcode")));

extern void		krealloc(void		**addrp,
				 vm_size_t	old_size,
				 vm_size_t	new_size,
				 simple_lock_t	lock);

extern void		kalloc_fake_zone_info(
				int		*count,
				vm_size_t	*cur_size,
				vm_size_t	*max_size,
				vm_size_t	*elem_size,
				vm_size_t	*alloc_size,
				int		*collectable,
				int		*exhaustable);

extern vm_size_t kalloc_max_prerounded;

#endif	/* MACH_KERNEL_PRIVATE */

#endif	/* _KERN_KALLOC_H_ */

#endif	/* KERNEL_PRIVATE */
Commit	Line	Data
1c79356b	1	/*
91447636	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
1c79356b	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
6601e61a	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
6601e61a	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* @OSF_COPYRIGHT@
	30	*/
	31	/*
	32	* Mach Operating System
	33	* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
	34	* All Rights Reserved.
	35	*
	36	* Permission to use, copy, modify and distribute this software and its
	37	* documentation is hereby granted, provided that both the copyright
	38	* notice and this permission notice appear in all copies of the
	39	* software, derivative works or modified versions, and any portions
	40	* thereof, and that both notices appear in supporting documentation.
	41	*
	42	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	43	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	44	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	45	*
	46	* Carnegie Mellon requests users of this software to return to
	47	*
	48	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	49	* School of Computer Science
	50	* Carnegie Mellon University
	51	* Pittsburgh PA 15213-3890
	52	*
	53	* any improvements or extensions that they make and grant Carnegie Mellon
	54	* the rights to redistribute these changes.
	55	*/
1c79356b	56
91447636 A	57	#ifdef KERNEL_PRIVATE
91447636 A	58
1c79356b A	59	#ifndef _KERN_KALLOC_H_
	60	#define _KERN_KALLOC_H_
	61
1c79356b	62	#include <mach/machine/vm_types.h>
91447636	63	#include <sys/cdefs.h>
1c79356b	64
91447636	65	__BEGIN_DECLS
1c79356b	66
91447636	67	extern void *kalloc(vm_size_t size);
1c79356b	68
91447636	69	extern void *kalloc_noblock(vm_size_t size);
1c79356b	70
91447636	71	extern void *kget(vm_size_t size);
1c79356b	72
91447636 A	73	extern void kfree(void *data,
91447636 A	74	vm_size_t size);
9bccf70c	75
91447636	76	__END_DECLS
9bccf70c	77
91447636	78	#ifdef MACH_KERNEL_PRIVATE
1c79356b	79
1c79356b A	80	#include <kern/lock.h>
1c79356b A	81
91447636 A	82	#define KALLOC_MINSIZE 16
91447636 A	83
2d21ac55	84	extern void kalloc_init(void) __attribute__((section("__TEXT, initcode")));
1c79356b	85
91447636 A	86	extern void krealloc(void **addrp,
	87	vm_size_t old_size,
	88	vm_size_t new_size,
	89	simple_lock_t lock);
	90
	91	extern void kalloc_fake_zone_info(
	92	int *count,
	93	vm_size_t *cur_size,
	94	vm_size_t *max_size,
	95	vm_size_t *elem_size,
	96	vm_size_t *alloc_size,
	97	int *collectable,
	98	int *exhaustable);
1c79356b	99
91447636	100	extern vm_size_t kalloc_max_prerounded;
1c79356b	101
91447636	102	#endif /* MACH_KERNEL_PRIVATE */
9bccf70c	103
1c79356b	104	#endif /* _KERN_KALLOC_H_ */
91447636 A	105
91447636 A	106	#endif /* KERNEL_PRIVATE */