[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/uvm/uvm_init.c

Version: -  FREEBSD  -  FREEBSD10  -  FREEBSD9  -  FREEBSD92  -  FREEBSD91  -  FREEBSD90  -  FREEBSD8  -  FREEBSD82  -  FREEBSD81  -  FREEBSD80  -  FREEBSD7  -  FREEBSD74  -  FREEBSD73  -  FREEBSD72  -  FREEBSD71  -  FREEBSD70  -  FREEBSD6  -  FREEBSD64  -  FREEBSD63  -  FREEBSD62  -  FREEBSD61  -  FREEBSD60  -  FREEBSD5  -  FREEBSD55  -  FREEBSD54  -  FREEBSD53  -  FREEBSD52  -  FREEBSD51  -  FREEBSD50  -  FREEBSD4  -  FREEBSD3  -  FREEBSD22  -  cheribsd  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1  -  FREEBSD-LIBC  -  FREEBSD8-LIBC  -  FREEBSD7-LIBC  -  FREEBSD6-LIBC  -  GLIBC27 
SearchContext: -  none  -  3  -  10 

    1 /*      $NetBSD: uvm_init.c,v 1.19 2003/10/26 08:05:00 jdolecek Exp $   */
    2 
    3 /*
    4  *
    5  * Copyright (c) 1997 Charles D. Cranor and Washington University.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. All advertising materials mentioning features or use of this software
   17  *    must display the following acknowledgement:
   18  *      This product includes software developed by Charles D. Cranor and
   19  *      Washington University.
   20  * 4. The name of the author may not be used to endorse or promote products
   21  *    derived from this software without specific prior written permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   33  *
   34  * from: Id: uvm_init.c,v 1.1.2.3 1998/02/06 05:15:27 chs Exp
   35  */
   36 
   37 /*
   38  * uvm_init.c: init the vm system.
   39  */
   40 
   41 #include <sys/cdefs.h>
   42 __KERNEL_RCSID(0, "$NetBSD: uvm_init.c,v 1.19 2003/10/26 08:05:00 jdolecek Exp $");
   43 
   44 #include <sys/param.h>
   45 #include <sys/systm.h>
   46 #include <sys/file.h>
   47 #include <sys/filedesc.h>
   48 #include <sys/resourcevar.h>
   49 #include <sys/mman.h>
   50 #include <sys/proc.h>
   51 #include <sys/malloc.h>
   52 #include <sys/vnode.h>
   53 
   54 #include <uvm/uvm.h>
   55 
   56 /*
   57  * struct uvm: we store all global vars in this structure to make them
   58  * easier to spot...
   59  */
   60 
   61 struct uvm uvm;         /* decl */
   62 struct uvmexp uvmexp;   /* decl */
   63 
   64 /*
   65  * local prototypes
   66  */
   67 
   68 /*
   69  * uvm_init: init the VM system.   called from kern/init_main.c.
   70  */
   71 
   72 void
   73 uvm_init()
   74 {
   75         vaddr_t kvm_start, kvm_end;
   76 
   77         /*
   78          * step 0: ensure that the hardware set the page size
   79          */
   80 
   81         if (uvmexp.pagesize == 0) {
   82                 panic("uvm_init: page size not set");
   83         }
   84 
   85         /*
   86          * step 1: zero the uvm structure
   87          */
   88 
   89         memset(&uvm, 0, sizeof(uvm));
   90         averunnable.fscale = FSCALE;
   91 
   92         /*
   93          * step 2: init the page sub-system.  this includes allocating the
   94          * vm_page structures, and setting up all the page queues (and
   95          * locks).  available memory will be put in the "free" queue.
   96          * kvm_start and kvm_end will be set to the area of kernel virtual
   97          * memory which is available for general use.
   98          */
   99 
  100         uvm_page_init(&kvm_start, &kvm_end);
  101 
  102         /*
  103          * step 3: init the map sub-system.  allocates the static pool of
  104          * vm_map_entry structures that are used for "special" kernel maps
  105          * (e.g. kernel_map, kmem_map, etc...).
  106          */
  107 
  108         uvm_map_init();
  109 
  110         /*
  111          * step 4: setup the kernel's virtual memory data structures.  this
  112          * includes setting up the kernel_map/kernel_object.
  113          */
  114 
  115         uvm_km_init(kvm_start, kvm_end);
  116 
  117         /*
  118          * step 5: init the pmap module.   the pmap module is free to allocate
  119          * memory for its private use (e.g. pvlists).
  120          */
  121 
  122         pmap_init();
  123 
  124         /*
  125          * step 6: init the kernel memory allocator.   after this call the
  126          * kernel memory allocator (malloc) can be used. this includes
  127          * setting up the kmem_map.
  128          */
  129 
  130         kmeminit();
  131 
  132         /*
  133          * step 7: init all pagers and the pager_map.
  134          */
  135 
  136         uvm_pager_init();
  137 
  138         /*
  139          * step 8: init anonymous memory systems (both amap and anons)
  140          */
  141 
  142         amap_init();            /* init amap module */
  143         uvm_anon_init();        /* allocate initial anons */
  144 
  145         /*
  146          * step 9: init the uvm_loan() facility.
  147          */
  148 
  149         uvm_loan_init();
  150 
  151         /*
  152          * the VM system is now up!  now that malloc is up we can resize the
  153          * <obj,off> => <page> hash table for general use and enable paging
  154          * of kernel objects.
  155          */
  156 
  157         uvm_page_rehash();
  158         uao_create(VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS,
  159             UAO_FLAG_KERNSWAP);
  160 
  161         /*
  162          * done!
  163          */
  164 
  165         return;
  166 }

Cache object: a46fd795a77f91054d771992386d4f87


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.