The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/mips/malta/gt.c

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    1 /*-
    2  * Copyright (c) 2005 Olivier Houchard.  All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   15  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   16  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   19  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   20  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   23  */
   24 
   25 #include <sys/cdefs.h>
   26 __FBSDID("$FreeBSD: releng/9.2/sys/mips/malta/gt.c 229093 2011-12-31 14:12:12Z hselasky $");
   27 
   28 #include <sys/param.h>
   29 #include <sys/systm.h>
   30 #include <sys/bus.h>
   31 #include <sys/kernel.h>
   32 #include <sys/malloc.h>
   33 #include <sys/module.h>
   34 #include <sys/rman.h>
   35 #include <sys/types.h>
   36 
   37 #include <vm/vm.h>
   38 #include <vm/vm_kern.h>
   39 #include <vm/pmap.h>
   40 #include <vm/vm_page.h>
   41 #include <vm/vm_extern.h>
   42 
   43 #include <dev/ic/i8259.h>
   44 
   45 #include <machine/bus.h>
   46 #include <machine/intr_machdep.h>
   47 
   48 #include <mips/malta/gtvar.h>
   49 
   50 static int
   51 gt_probe(device_t dev)
   52 {
   53         device_set_desc(dev, "GT64120 chip");
   54         return (0);
   55 }
   56 
   57 static void
   58 gt_identify(driver_t *drv, device_t parent)
   59 {
   60         BUS_ADD_CHILD(parent, 0, "gt", 0);
   61 }
   62 
   63 static int
   64 gt_attach(device_t dev)
   65 {
   66         struct gt_softc *sc = device_get_softc(dev);
   67         sc->dev = dev;
   68 
   69         device_add_child(dev, "pcib", 0);
   70         bus_generic_probe(dev);
   71         bus_generic_attach(dev);
   72 
   73 
   74         return (0);
   75 }
   76 
   77 static struct resource *
   78 gt_alloc_resource(device_t dev, device_t child, int type, int *rid,
   79     u_long start, u_long end, u_long count, u_int flags)
   80 {
   81         return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
   82                     type, rid, start, end, count, flags));
   83         
   84 }
   85 
   86 static int
   87 gt_setup_intr(device_t dev, device_t child,
   88     struct resource *ires, int flags, driver_filter_t *filt, 
   89     driver_intr_t *intr, void *arg, void **cookiep)
   90 {
   91         return BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, 
   92             filt, intr, arg, cookiep);
   93 }
   94 
   95 static int
   96 gt_teardown_intr(device_t dev, device_t child, struct resource *res,
   97     void *cookie)
   98 {
   99         return (BUS_TEARDOWN_INTR(device_get_parent(dev), child, res, cookie));
  100 }
  101 
  102 static int
  103 gt_activate_resource(device_t dev, device_t child, int type, int rid,
  104     struct resource *r)
  105 {
  106         return (BUS_ACTIVATE_RESOURCE(device_get_parent(dev), child,
  107                     type, rid, r));
  108 }
  109 
  110 static device_method_t gt_methods[] = {
  111         DEVMETHOD(device_probe, gt_probe),
  112         DEVMETHOD(device_identify, gt_identify),
  113         DEVMETHOD(device_attach, gt_attach),
  114 
  115         DEVMETHOD(bus_setup_intr, gt_setup_intr),
  116         DEVMETHOD(bus_teardown_intr, gt_teardown_intr),
  117         DEVMETHOD(bus_alloc_resource, gt_alloc_resource),
  118         DEVMETHOD(bus_activate_resource, gt_activate_resource),
  119 
  120         DEVMETHOD_END
  121 };
  122 
  123 static driver_t gt_driver = {
  124         "gt",
  125         gt_methods,
  126         sizeof(struct gt_softc),
  127 };
  128 static devclass_t gt_devclass;
  129 
  130 DRIVER_MODULE(gt, nexus, gt_driver, gt_devclass, 0, 0);

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