[apple/xnu.git] / osfmk / vm / cpm.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 * 
 */

#ifndef	_VM_CPM_H_
#define	_VM_CPM_H_

/*
 *	File:	vm/cpm.h
 *	Author:	Alan Langerman
 *	Date:	April 1995 and January 1996
 *
 *	Contiguous physical memory allocator.
 */

#include <mach_kdb.h>
#include <mach_counters.h>

/*
 *	Return a linked list of physically contiguous
 *	wired pages.  Caller is responsible for disposal
 *	via cpm_release.
 *
 *	These pages are all in "gobbled" state when .
 */
extern kern_return_t
	cpm_allocate(vm_size_t size, vm_page_t *list, boolean_t wire);

/*
 *	CPM-specific event counters.
 */
#define	VM_CPM_COUNTERS		(MACH_KDB && MACH_COUNTERS && VM_CPM)
#if	VM_CPM_COUNTERS
#define	cpm_counter(foo)	foo
#else	/* VM_CPM_COUNTERS */
#define	cpm_counter(foo)
#endif	/* VM_CPM_COUNTERS */

#endif	/* _VM_CPM_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* @OSF_COPYRIGHT@
	24	*
	25	*/
	26
	27	#ifndef _VM_CPM_H_
	28	#define _VM_CPM_H_
	29
	30	/*
	31	* File: vm/cpm.h
	32	* Author: Alan Langerman
	33	* Date: April 1995 and January 1996
	34	*
	35	* Contiguous physical memory allocator.
	36	*/
	37
	38	#include <mach_kdb.h>
	39	#include <mach_counters.h>
	40
	41	/*
	42	* Return a linked list of physically contiguous
	43	* wired pages. Caller is responsible for disposal
	44	* via cpm_release.
	45	*
	46	* These pages are all in "gobbled" state when .
	47	*/
	48	extern kern_return_t
	49	cpm_allocate(vm_size_t size, vm_page_t *list, boolean_t wire);
	50
	51	/*
	52	* CPM-specific event counters.
	53	*/
	54	#define VM_CPM_COUNTERS (MACH_KDB && MACH_COUNTERS && VM_CPM)
	55	#if VM_CPM_COUNTERS
	56	#define cpm_counter(foo) foo
	57	#else /* VM_CPM_COUNTERS */
	58	#define cpm_counter(foo)
	59	#endif /* VM_CPM_COUNTERS */
	60
	61	#endif /* _VM_CPM_H_ */