[apple/xnu.git] / osfmk / vm / vm_init.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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. 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_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.
 */
/*
 */
/*
 *	File:	vm/vm_init.c
 *	Author:	Avadis Tevanian, Jr., Michael Wayne Young
 *	Date:	1985
 *
 *	Initialize the Virtual Memory subsystem.
 */

#include <mach/machine/vm_types.h>
#include <kern/zalloc.h>
#include <kern/kalloc.h>
#include <vm/vm_object.h>
#include <vm/vm_map.h>
#include <vm/vm_page.h>
#include <vm/vm_kern.h>
#include <vm/memory_object.h>
#include <vm/vm_fault.h>
#include <vm/vm_init.h>

#define ZONE_MAP_MIN (12 * 1024 * 1024) 
#define ZONE_MAP_MAX (256 * 1024 * 1024) 

/*
 *	vm_mem_bootstrap initializes the virtual memory system.
 *	This is done only by the first cpu up.
 */

void
vm_mem_bootstrap(void)
{
	vm_offset_t	start, end;
	vm_size_t zsize;

	/*
	 *	Initializes resident memory structures.
	 *	From here on, all physical memory is accounted for,
	 *	and we use only virtual addresses.
	 */

	vm_page_bootstrap(&start, &end);

	/*
	 *	Initialize other VM packages
	 */

	zone_bootstrap();
	vm_object_bootstrap();
	vm_map_init();
	kmem_init(start, end);
	pmap_init();
	
	if (PE_parse_boot_arg("zsize", &zsize))
		zsize = zsize * 1024 * 1024;
	else {
		zsize = sane_size >> 2;				/* Get target zone size as 1/4 of physical memory */
	}

	if(zsize < ZONE_MAP_MIN) zsize = ZONE_MAP_MIN;	/* Clamp to min */
	if(zsize > ZONE_MAP_MAX) zsize = ZONE_MAP_MAX;	/* Clamp to max */
	zone_init(zsize);						/* Allocate address space for zones */
	
	kalloc_init();
	vm_fault_init();
	vm_page_module_init();
	memory_manager_default_init();
	memory_object_control_bootstrap();
	device_pager_bootstrap();
}

void
vm_mem_init(void)
{
	vm_object_init();
}
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
d7e50217	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
d7e50217 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
d7e50217 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	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
	35	* notice and this permission notice appear in all copies of the
	36	* software, derivative works or modified versions, and any portions
	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
	48	* Pittsburgh PA 15213-3890
	49	*
	50	* any improvements or extensions that they make and grant Carnegie Mellon
	51	* the rights to redistribute these changes.
	52	*/
	53	/*
	54	*/
	55	/*
	56	* File: vm/vm_init.c
	57	* Author: Avadis Tevanian, Jr., Michael Wayne Young
	58	* Date: 1985
	59	*
	60	* Initialize the Virtual Memory subsystem.
	61	*/
	62
	63	#include <mach/machine/vm_types.h>
	64	#include <kern/zalloc.h>
	65	#include <kern/kalloc.h>
	66	#include <vm/vm_object.h>
	67	#include <vm/vm_map.h>
	68	#include <vm/vm_page.h>
	69	#include <vm/vm_kern.h>
	70	#include <vm/memory_object.h>
	71	#include <vm/vm_fault.h>
	72	#include <vm/vm_init.h>
	73
	74	#define ZONE_MAP_MIN (12 * 1024 * 1024)
765c9de3	75	#define ZONE_MAP_MAX (256 * 1024 * 1024)
1c79356b A	76
	77	/*
	78	* vm_mem_bootstrap initializes the virtual memory system.
	79	* This is done only by the first cpu up.
	80	*/
	81
	82	void
	83	vm_mem_bootstrap(void)
	84	{
	85	vm_offset_t start, end;
	86	vm_size_t zsize;
	87
	88	/*
	89	* Initializes resident memory structures.
	90	* From here on, all physical memory is accounted for,
	91	* and we use only virtual addresses.
	92	*/
	93
	94	vm_page_bootstrap(&start, &end);
	95
	96	/*
	97	* Initialize other VM packages
	98	*/
	99
	100	zone_bootstrap();
	101	vm_object_bootstrap();
	102	vm_map_init();
	103	kmem_init(start, end);
	104	pmap_init();
	105
b4c24cb9 A	106	if (PE_parse_boot_arg("zsize", &zsize))
	107	zsize = zsize * 1024 * 1024;
	108	else {
d7e50217	109	zsize = sane_size >> 2; /* Get target zone size as 1/4 of physical memory */
b4c24cb9	110	}
d7e50217	111
1c79356b A	112	if(zsize < ZONE_MAP_MIN) zsize = ZONE_MAP_MIN; /* Clamp to min */
	113	if(zsize > ZONE_MAP_MAX) zsize = ZONE_MAP_MAX; /* Clamp to max */
	114	zone_init(zsize); /* Allocate address space for zones */
	115
	116	kalloc_init();
	117	vm_fault_init();
	118	vm_page_module_init();
	119	memory_manager_default_init();
0b4e3aa0 A	120	memory_object_control_bootstrap();
0b4e3aa0 A	121	device_pager_bootstrap();
1c79356b A	122	}
	123
	124	void
	125	vm_mem_init(void)
	126	{
	127	vm_object_init();
	128	}