ipc_init.c

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        ipc_init.c,v $
   29  * Revision 2.14  92/08/03  17:34:17  jfriedl
   30  *      removed silly prototypes
   31  *      [92/08/02            jfriedl]
   32  * 
   33  * Revision 2.13  92/05/21  17:10:11  jfriedl
   34  *      tried prototypes.
   35  *      [92/05/20            jfriedl]
   36  * 
   37  * Revision 2.12  91/12/10  13:25:41  jsb
   38  *      Removed reference counting bug workaround.
   39  *      [91/12/10  11:17:21  jsb]
   40  * 
   41  * Revision 2.11  91/11/19  09:54:12  rvb
   42  *      Joe's tar.3 changes installed by Jeffrey Heller.
   43  *      [91/11/19            rvb]
   44  * 
   45  * Revision 2.10  91/08/03  18:18:12  jsb
   46  *      Removed call to ipc_clport_init.
   47  *      [91/07/24  22:11:04  jsb]
   48  * 
   49  * Revision 2.9  91/06/17  15:46:00  jsb
   50  *      Renamed NORMA conditionals.
   51  *      [91/06/17  10:45:48  jsb]
   52  * 
   53  * Revision 2.8  91/06/06  17:05:46  jsb
   54  *      Added call to ipc_clport_init.
   55  *      [91/05/13  17:17:10  jsb]
   56  * 
   57  * Revision 2.7  91/05/14  16:32:33  mrt
   58  *      Correcting copyright
   59  * 
   60  * Revision 2.6  91/02/05  17:21:37  mrt
   61  *      Changed to new Mach copyright
   62  *      [91/02/01  15:45:02  mrt]
   63  * 
   64  * Revision 2.5  91/01/08  15:13:40  rpd
   65  *      Changed zchange calls to make the IPC zones non-collectable.
   66  *      [90/12/29            rpd]
   67  * 
   68  * Revision 2.4  90/12/20  16:38:41  jeffreyh
   69  *      Changes to zchange to account for new collectable field. Made all
   70  *      ipc zones collectable.
   71  *      [90/12/11            jeffreyh]
   72  * 
   73  * Revision 2.3  90/09/28  16:54:44  jsb
   74  *      Added NORMA_IPC support.
   75  *      [90/09/28  14:02:05  jsb]
   76  * 
   77  * Revision 2.2  90/06/02  14:49:55  rpd
   78  *      Created for new IPC.
   79  *      [90/03/26  20:55:13  rpd]
   80  * 
   81  */
   82 /*
   83  *      File:   ipc/ipc_init.c
   84  *      Author: Rich Draves
   85  *      Date:   1989
   86  *
   87  *      Functions to initialize the IPC system.
   88  */
   89 
   90 #include <mach/kern_return.h>
   91 #include <kern/mach_param.h>
   92 #include <kern/ipc_host.h>
   93 #include <vm/vm_map.h>
   94 #include <vm/vm_kern.h>
   95 #include <ipc/ipc_entry.h>
   96 #include <ipc/ipc_space.h>
   97 #include <ipc/ipc_object.h>
   98 #include <ipc/ipc_port.h>
   99 #include <ipc/ipc_pset.h>
  100 #include <ipc/ipc_marequest.h>
  101 #include <ipc/ipc_notify.h>
  102 #include <ipc/ipc_kmsg.h>
  103 #include <ipc/ipc_hash.h>
  104 #include <ipc/ipc_init.h>
  105 
  106 
  107 
  108 vm_map_t ipc_kernel_map;
  109 vm_size_t ipc_kernel_map_size = 1024 * 1024;
  110 
  111 int ipc_space_max = SPACE_MAX;
  112 int ipc_tree_entry_max = ITE_MAX;
  113 int ipc_port_max = PORT_MAX;
  114 int ipc_pset_max = SET_MAX;
  115 
  116 /*
  117  *      Routine:        ipc_bootstrap
  118  *      Purpose:
  119  *              Initialization needed before the kernel task
  120  *              can be created.
  121  */
  122 
  123 void
  124 ipc_bootstrap()
  125 {
  126         kern_return_t kr;
  127 
  128         ipc_port_multiple_lock_init();
  129 
  130         ipc_port_timestamp_lock_init();
  131         ipc_port_timestamp_data = 0;
  132 
  133         /* all IPC zones should be exhaustible */
  134 
  135         ipc_space_zone = zinit(sizeof(struct ipc_space),
  136                                ipc_space_max * sizeof(struct ipc_space),
  137                                sizeof(struct ipc_space),
  138                                FALSE, "ipc spaces");
  139         /* make it exhaustible */
  140         zchange(ipc_space_zone, FALSE, FALSE, TRUE, FALSE);
  141 
  142         ipc_tree_entry_zone =
  143                 zinit(sizeof(struct ipc_tree_entry),
  144                         ipc_tree_entry_max * sizeof(struct ipc_tree_entry),
  145                         sizeof(struct ipc_tree_entry),
  146                         FALSE, "ipc tree entries");
  147         /* make it exhaustible */
  148         zchange(ipc_tree_entry_zone, FALSE, FALSE, TRUE, FALSE);
  149 
  150         ipc_object_zones[IOT_PORT] =
  151                 zinit(sizeof(struct ipc_port),
  152                       ipc_port_max * sizeof(struct ipc_port),
  153                       sizeof(struct ipc_port),
  154                       FALSE, "ipc ports");
  155         /* make it exhaustible */
  156         zchange(ipc_object_zones[IOT_PORT], FALSE, FALSE, TRUE, FALSE);
  157 
  158         ipc_object_zones[IOT_PORT_SET] =
  159                 zinit(sizeof(struct ipc_pset),
  160                       ipc_pset_max * sizeof(struct ipc_pset),
  161                       sizeof(struct ipc_pset),
  162                       FALSE, "ipc port sets");
  163         /* make it exhaustible */
  164         zchange(ipc_object_zones[IOT_PORT_SET], FALSE, FALSE, TRUE, FALSE);
  165 
  166         /* create special spaces */
  167 
  168         kr = ipc_space_create_special(&ipc_space_kernel);
  169         assert(kr == KERN_SUCCESS);
  170 
  171         kr = ipc_space_create_special(&ipc_space_reply);
  172         assert(kr == KERN_SUCCESS);
  173 
  174 #if     NORMA_IPC
  175         kr = ipc_space_create_special(&ipc_space_remote);
  176         assert(kr == KERN_SUCCESS);
  177 #endif  NORMA_IPC
  178 
  179         /* initialize modules with hidden data structures */
  180 
  181         ipc_table_init();
  182         ipc_notify_init();
  183         ipc_hash_init();
  184         ipc_marequest_init();
  185 }
  186 
  187 /*
  188  *      Routine:        ipc_init
  189  *      Purpose:
  190  *              Final initialization of the IPC system.
  191  */
  192 
  193 void
  194 ipc_init()
  195 {
  196         vm_offset_t min, max;
  197 
  198         ipc_kernel_map = kmem_suballoc(kernel_map, &min, &max,
  199                                        ipc_kernel_map_size, TRUE);
  200 
  201         ipc_host_init();
  202 }

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sys/ipc/ipc_init.c