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

/*
 * 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@
 */
/* 
 * 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 = mem_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	*
de355530 A	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.
1c79356b	11	*
de355530 A	12	* This Original Code and all software distributed under the License are
de355530 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
de355530 A	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.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	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
	32	* notice and this permission notice appear in all copies of the
	33	* software, derivative works or modified versions, and any portions
	34	* thereof, and that both notices appear in supporting documentation.
	35	*
	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: vm/vm_init.c
	54	* Author: Avadis Tevanian, Jr., Michael Wayne Young
	55	* Date: 1985
	56	*
	57	* Initialize the Virtual Memory subsystem.
	58	*/
	59
	60	#include <mach/machine/vm_types.h>
	61	#include <kern/zalloc.h>
	62	#include <kern/kalloc.h>
	63	#include <vm/vm_object.h>
	64	#include <vm/vm_map.h>
	65	#include <vm/vm_page.h>
	66	#include <vm/vm_kern.h>
	67	#include <vm/memory_object.h>
	68	#include <vm/vm_fault.h>
	69	#include <vm/vm_init.h>
	70
	71	#define ZONE_MAP_MIN (12 * 1024 * 1024)
765c9de3	72	#define ZONE_MAP_MAX (256 * 1024 * 1024)
1c79356b A	73
	74	/*
	75	* vm_mem_bootstrap initializes the virtual memory system.
	76	* This is done only by the first cpu up.
	77	*/
	78
	79	void
	80	vm_mem_bootstrap(void)
	81	{
	82	vm_offset_t start, end;
	83	vm_size_t zsize;
	84
	85	/*
	86	* Initializes resident memory structures.
	87	* From here on, all physical memory is accounted for,
	88	* and we use only virtual addresses.
	89	*/
	90
	91	vm_page_bootstrap(&start, &end);
	92
	93	/*
	94	* Initialize other VM packages
	95	*/
	96
	97	zone_bootstrap();
	98	vm_object_bootstrap();
	99	vm_map_init();
	100	kmem_init(start, end);
	101	pmap_init();
	102
b4c24cb9 A	103	if (PE_parse_boot_arg("zsize", &zsize))
	104	zsize = zsize * 1024 * 1024;
	105	else {
de355530	106	zsize = mem_size >> 2; /* Get target zone size as 1/4 of physical memory */
b4c24cb9	107	}
1c79356b A	108	if(zsize < ZONE_MAP_MIN) zsize = ZONE_MAP_MIN; /* Clamp to min */
	109	if(zsize > ZONE_MAP_MAX) zsize = ZONE_MAP_MAX; /* Clamp to max */
	110	zone_init(zsize); /* Allocate address space for zones */
	111
	112	kalloc_init();
	113	vm_fault_init();
	114	vm_page_module_init();
	115	memory_manager_default_init();
0b4e3aa0 A	116	memory_object_control_bootstrap();
0b4e3aa0 A	117	device_pager_bootstrap();
1c79356b A	118	}
	119
	120	void
	121	vm_mem_init(void)
	122	{
	123	vm_object_init();
	124	}