[apple/xnu.git] / osfmk / ipc / ipc_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 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:	ipc/ipc_init.c
 *	Author:	Rich Draves
 *	Date:	1989
 *
 *	Functions to initialize the IPC system.
 */

#include <mach_debug.h>
#include <mach_rt.h>

#include <mach/kern_return.h>
#include <kern/mach_param.h>
#include <kern/ipc_host.h>
#include <kern/host_notify.h>
#include <kern/mk_timer.h>
#include <kern/misc_protos.h>
#include <vm/vm_map.h>
#include <vm/vm_kern.h>
#include <ipc/ipc_entry.h>
#include <ipc/ipc_space.h>
#include <ipc/ipc_object.h>
#include <ipc/ipc_port.h>
#include <ipc/ipc_pset.h>
#include <ipc/ipc_notify.h>
#include <ipc/ipc_kmsg.h>
#include <ipc/ipc_hash.h>
#include <ipc/ipc_init.h>
#include <mach/machine/ndr_def.h>   /* NDR_record */

vm_map_t ipc_kernel_map;
vm_size_t ipc_kernel_map_size = 1024 * 1024;

vm_map_t ipc_kernel_copy_map;
#define IPC_KERNEL_COPY_MAP_SIZE (8 * 1024 * 1024)
vm_size_t ipc_kernel_copy_map_size = IPC_KERNEL_COPY_MAP_SIZE;
vm_size_t ipc_kmsg_max_vm_space = (IPC_KERNEL_COPY_MAP_SIZE * 7)/8;

int ipc_space_max = SPACE_MAX;
int ipc_tree_entry_max = ITE_MAX;
int ipc_port_max = PORT_MAX;
int ipc_pset_max = SET_MAX;

extern void mig_init(void);
extern void ikm_cache_init(void);

/*
 *	Routine:	ipc_bootstrap
 *	Purpose:
 *		Initialization needed before the kernel task
 *		can be created.
 */

void
ipc_bootstrap(void)
{
	kern_return_t kr;

	ipc_port_multiple_lock_init();

	ipc_port_timestamp_lock_init();
	ipc_port_timestamp_data = 0;

	/* all IPC zones should be exhaustible */

	ipc_space_zone = zinit(sizeof(struct ipc_space),
			       ipc_space_max * sizeof(struct ipc_space),
			       sizeof(struct ipc_space),
			       "ipc spaces");
#if 0
	/* make it exhaustible */
	zone_change(ipc_space_zone, Z_EXHAUST, TRUE);
#endif

	ipc_tree_entry_zone =
		zinit(sizeof(struct ipc_tree_entry),
			ipc_tree_entry_max * sizeof(struct ipc_tree_entry),
			sizeof(struct ipc_tree_entry),
			"ipc tree entries");
#if 0
	/* make it exhaustible */
	zone_change(ipc_tree_entry_zone, Z_EXHAUST, TRUE);
#endif

	/*
	 * populate all port(set) zones
	 */
	ipc_object_zones[IOT_PORT] =
		zinit(sizeof(struct ipc_port),
		      ipc_port_max * sizeof(struct ipc_port),
		      sizeof(struct ipc_port),
		      "ipc ports");
	/*
	 * XXX  Can't make the port zone exhaustible because the kernel
	 * XXX	panics when port allocation for an internal object fails.
	 *zone_change(ipc_object_zones[IOT_PORT], Z_EXHAUST, TRUE);
	 */

	ipc_object_zones[IOT_PORT_SET] =
		zinit(sizeof(struct ipc_pset),
		      ipc_pset_max * sizeof(struct ipc_pset),
		      sizeof(struct ipc_pset),
		      "ipc port sets");
	/* make it exhaustible */
	zone_change(ipc_object_zones[IOT_PORT_SET], Z_EXHAUST, TRUE);

	/* create special spaces */

	kr = ipc_space_create_special(&ipc_space_kernel);
	assert(kr == KERN_SUCCESS);


	kr = ipc_space_create_special(&ipc_space_reply);
	assert(kr == KERN_SUCCESS);

	/* initialize modules with hidden data structures */

#if	MACH_ASSERT
	ipc_port_debug_init();
#endif
	mig_init();
	ipc_table_init();
	ipc_hash_init();
	ipc_kmsg_init();
	semaphore_init();
	lock_set_init();
	mk_timer_init();
	host_notify_init();
}

/* 
 * XXX tunable, belongs in mach.message.h 
 */
#define MSG_OOL_SIZE_SMALL_MAX 4096
vm_size_t msg_ool_size_small;

/*
 *	Routine:	ipc_init
 *	Purpose:
 *		Final initialization of the IPC system.
 */

void
ipc_init(void)
{
	kern_return_t retval;
	vm_offset_t min, max;
	extern vm_size_t kalloc_max_prerounded;

	retval = kmem_suballoc(kernel_map, &min, ipc_kernel_map_size,
			       TRUE, TRUE, &ipc_kernel_map);
	if (retval != KERN_SUCCESS)
		panic("ipc_init: kmem_suballoc of ipc_kernel_map failed");

	retval = kmem_suballoc(kernel_map, &min, ipc_kernel_copy_map_size,
			       TRUE, TRUE, &ipc_kernel_copy_map);
	if (retval != KERN_SUCCESS)
		panic("ipc_init: kmem_suballoc of ipc_kernel_copy_map failed");

	ipc_kernel_copy_map->no_zero_fill = TRUE;
	ipc_kernel_copy_map->wait_for_space = TRUE;

	/*
	 * As an optimization, 'small' out of line data regions using a 
	 * physical copy strategy are copied into kalloc'ed buffers.
	 * The value of 'small' is determined here.  Requests kalloc()
	 * with sizes greater or equal to kalloc_max_prerounded may fail.
	 */
	if (kalloc_max_prerounded <=  MSG_OOL_SIZE_SMALL_MAX) {
		msg_ool_size_small = kalloc_max_prerounded;
	}
	else {
		msg_ool_size_small = MSG_OOL_SIZE_SMALL_MAX;
	}

	ipc_host_init();
}
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
43866e37	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
43866e37 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,
43866e37 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 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: ipc/ipc_init.c
	57	* Author: Rich Draves
	58	* Date: 1989
	59	*
	60	* Functions to initialize the IPC system.
	61	*/
	62
	63	#include <mach_debug.h>
	64	#include <mach_rt.h>
	65
	66	#include <mach/kern_return.h>
	67	#include <kern/mach_param.h>
	68	#include <kern/ipc_host.h>
55e303ae A	69	#include <kern/host_notify.h>
55e303ae A	70	#include <kern/mk_timer.h>
1c79356b A	71	#include <kern/misc_protos.h>
	72	#include <vm/vm_map.h>
	73	#include <vm/vm_kern.h>
	74	#include <ipc/ipc_entry.h>
	75	#include <ipc/ipc_space.h>
	76	#include <ipc/ipc_object.h>
	77	#include <ipc/ipc_port.h>
	78	#include <ipc/ipc_pset.h>
	79	#include <ipc/ipc_notify.h>
	80	#include <ipc/ipc_kmsg.h>
	81	#include <ipc/ipc_hash.h>
	82	#include <ipc/ipc_init.h>
	83	#include <mach/machine/ndr_def.h> /* NDR_record */
	84
	85	vm_map_t ipc_kernel_map;
	86	vm_size_t ipc_kernel_map_size = 1024 * 1024;
	87
	88	vm_map_t ipc_kernel_copy_map;
	89	#define IPC_KERNEL_COPY_MAP_SIZE (8 * 1024 * 1024)
	90	vm_size_t ipc_kernel_copy_map_size = IPC_KERNEL_COPY_MAP_SIZE;
	91	vm_size_t ipc_kmsg_max_vm_space = (IPC_KERNEL_COPY_MAP_SIZE * 7)/8;
	92
	93	int ipc_space_max = SPACE_MAX;
	94	int ipc_tree_entry_max = ITE_MAX;
	95	int ipc_port_max = PORT_MAX;
	96	int ipc_pset_max = SET_MAX;
	97
	98	extern void mig_init(void);
	99	extern void ikm_cache_init(void);
	100
	101	/*
	102	* Routine: ipc_bootstrap
	103	* Purpose:
	104	* Initialization needed before the kernel task
	105	* can be created.
	106	*/
	107
	108	void
	109	ipc_bootstrap(void)
	110	{
	111	kern_return_t kr;
	112
	113	ipc_port_multiple_lock_init();
	114
	115	ipc_port_timestamp_lock_init();
	116	ipc_port_timestamp_data = 0;
	117
	118	/* all IPC zones should be exhaustible */
	119
	120	ipc_space_zone = zinit(sizeof(struct ipc_space),
	121	ipc_space_max * sizeof(struct ipc_space),
	122	sizeof(struct ipc_space),
	123	"ipc spaces");
	124	#if 0
	125	/* make it exhaustible */
	126	zone_change(ipc_space_zone, Z_EXHAUST, TRUE);
	127	#endif
	128
	129	ipc_tree_entry_zone =
	130	zinit(sizeof(struct ipc_tree_entry),
	131	ipc_tree_entry_max * sizeof(struct ipc_tree_entry),
	132	sizeof(struct ipc_tree_entry),
	133	"ipc tree entries");
	134	#if 0
135	/* make it exhaustible */
136	zone_change(ipc_tree_entry_zone, Z_EXHAUST, TRUE);
137	#endif
138
139	/*
140	* populate all port(set) zones
141	*/
142	ipc_object_zones[IOT_PORT] =
143	zinit(sizeof(struct ipc_port),
144	ipc_port_max * sizeof(struct ipc_port),
145	sizeof(struct ipc_port),
146	"ipc ports");
147	/*
148	* XXX Can't make the port zone exhaustible because the kernel
149	* XXX panics when port allocation for an internal object fails.
150	*zone_change(ipc_object_zones[IOT_PORT], Z_EXHAUST, TRUE);
151	*/
152
153	ipc_object_zones[IOT_PORT_SET] =
154	zinit(sizeof(struct ipc_pset),
155	ipc_pset_max * sizeof(struct ipc_pset),
156	sizeof(struct ipc_pset),
157	"ipc port sets");
158	/* make it exhaustible */
159	zone_change(ipc_object_zones[IOT_PORT_SET], Z_EXHAUST, TRUE);
160
161	/* create special spaces */
162
163	kr = ipc_space_create_special(&ipc_space_kernel);
164	assert(kr == KERN_SUCCESS);
165
166
167	kr = ipc_space_create_special(&ipc_space_reply);
168	assert(kr == KERN_SUCCESS);
169
170	/* initialize modules with hidden data structures */
171
172	#if MACH_ASSERT
173	ipc_port_debug_init();
174	#endif
175	mig_init();
176	ipc_table_init();
1c79356b A	177	ipc_hash_init();
	178	ipc_kmsg_init();
	179	semaphore_init();
	180	lock_set_init();
55e303ae A	181	mk_timer_init();
55e303ae A	182	host_notify_init();
1c79356b A	183	}
	184
	185	/*
	186	* XXX tunable, belongs in mach.message.h
	187	*/
	188	#define MSG_OOL_SIZE_SMALL_MAX 4096
	189	vm_size_t msg_ool_size_small;
	190
	191	/*
	192	* Routine: ipc_init
	193	* Purpose:
	194	* Final initialization of the IPC system.
	195	*/
	196
	197	void
	198	ipc_init(void)
	199	{
	200	kern_return_t retval;
	201	vm_offset_t min, max;
	202	extern vm_size_t kalloc_max_prerounded;
	203
	204	retval = kmem_suballoc(kernel_map, &min, ipc_kernel_map_size,
	205	TRUE, TRUE, &ipc_kernel_map);
	206	if (retval != KERN_SUCCESS)
	207	panic("ipc_init: kmem_suballoc of ipc_kernel_map failed");
	208
	209	retval = kmem_suballoc(kernel_map, &min, ipc_kernel_copy_map_size,
	210	TRUE, TRUE, &ipc_kernel_copy_map);
	211	if (retval != KERN_SUCCESS)
	212	panic("ipc_init: kmem_suballoc of ipc_kernel_copy_map failed");
	213
	214	ipc_kernel_copy_map->no_zero_fill = TRUE;
	215	ipc_kernel_copy_map->wait_for_space = TRUE;
	216
	217	/*
	218	* As an optimization, 'small' out of line data regions using a
	219	* physical copy strategy are copied into kalloc'ed buffers.
	220	* The value of 'small' is determined here. Requests kalloc()
	221	* with sizes greater or equal to kalloc_max_prerounded may fail.
	222	*/
	223	if (kalloc_max_prerounded <= MSG_OOL_SIZE_SMALL_MAX) {
	224	msg_ool_size_small = kalloc_max_prerounded;
	225	}
	226	else {
	227	msg_ool_size_small = MSG_OOL_SIZE_SMALL_MAX;
	228	}
	229
	230	ipc_host_init();
	231	}