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/dev/acpica/acpi_container.c

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    1 /*-
    2  * Copyright (c) 2017 Microsoft Corp.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice unmodified, this list of conditions, and the following
   10  *    disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/10.4/sys/dev/acpica/acpi_container.c 318393 2017-05-17 02:40:06Z sephe $");
   29 
   30 #include <sys/param.h>
   31 #include <sys/kernel.h>
   32 #include <sys/bus.h>
   33 #include <sys/module.h>
   34 
   35 #include <contrib/dev/acpica/include/acpi.h>
   36 #include <dev/acpica/acpivar.h>
   37 
   38 #include "pcib_if.h"
   39 
   40 ACPI_MODULE_NAME("CONTAINER")
   41 
   42 static int                      acpi_syscont_probe(device_t);
   43 static int                      acpi_syscont_attach(device_t);
   44 static int                      acpi_syscont_detach(device_t);
   45 static int                      acpi_syscont_alloc_msi(device_t, device_t,
   46                                     int count, int maxcount, int *irqs);
   47 static int                      acpi_syscont_release_msi(device_t bus, device_t dev,
   48                                     int count, int *irqs);
   49 static int                      acpi_syscont_alloc_msix(device_t bus, device_t dev,
   50                                     int *irq);
   51 static int                      acpi_syscont_release_msix(device_t bus, device_t dev,
   52                                     int irq);
   53 static int                      acpi_syscont_map_msi(device_t bus, device_t dev,
   54                                     int irq, uint64_t *addr, uint32_t *data);
   55 
   56 static device_method_t acpi_syscont_methods[] = {
   57     /* Device interface */
   58     DEVMETHOD(device_probe,             acpi_syscont_probe),
   59     DEVMETHOD(device_attach,            acpi_syscont_attach),
   60     DEVMETHOD(device_detach,            acpi_syscont_detach),
   61 
   62     /* Bus interface */
   63     DEVMETHOD(bus_add_child,            bus_generic_add_child),
   64     DEVMETHOD(bus_print_child,          bus_generic_print_child),
   65     DEVMETHOD(bus_alloc_resource,       bus_generic_alloc_resource),
   66     DEVMETHOD(bus_release_resource,     bus_generic_release_resource),
   67     DEVMETHOD(bus_activate_resource,    bus_generic_activate_resource),
   68     DEVMETHOD(bus_deactivate_resource,  bus_generic_deactivate_resource),
   69     DEVMETHOD(bus_setup_intr,           bus_generic_setup_intr),
   70     DEVMETHOD(bus_teardown_intr,        bus_generic_teardown_intr),
   71 #if __FreeBSD_version >= 1100000
   72     DEVMETHOD(bus_get_cpus,             bus_generic_get_cpus),
   73 #endif
   74 
   75     /* pcib interface */
   76     DEVMETHOD(pcib_alloc_msi,           acpi_syscont_alloc_msi),
   77     DEVMETHOD(pcib_release_msi,         acpi_syscont_release_msi),
   78     DEVMETHOD(pcib_alloc_msix,          acpi_syscont_alloc_msix),
   79     DEVMETHOD(pcib_release_msix,        acpi_syscont_release_msix),
   80     DEVMETHOD(pcib_map_msi,             acpi_syscont_map_msi),
   81 
   82     DEVMETHOD_END
   83 };
   84 
   85 static driver_t acpi_syscont_driver = {
   86     "acpi_syscontainer",
   87     acpi_syscont_methods,
   88     0,
   89 };
   90 
   91 static devclass_t acpi_syscont_devclass;
   92 
   93 DRIVER_MODULE(acpi_syscontainer, acpi, acpi_syscont_driver,
   94     acpi_syscont_devclass, NULL, NULL);
   95 MODULE_DEPEND(acpi_syscontainer, acpi, 1, 1, 1);
   96 
   97 static int
   98 acpi_syscont_probe(device_t dev)
   99 {
  100     static char *syscont_ids[] = { "ACPI0004", "PNP0A05", "PNP0A06", NULL };
  101 
  102     if (acpi_disabled("syscontainer") ||
  103         ACPI_ID_PROBE(device_get_parent(dev), dev, syscont_ids) == NULL)
  104         return (ENXIO);
  105 
  106     device_set_desc(dev, "System Container");
  107     return (BUS_PROBE_DEFAULT);
  108 }
  109 
  110 static int
  111 acpi_syscont_attach(device_t dev)
  112 {
  113 
  114     bus_generic_probe(dev);
  115     return (bus_generic_attach(dev));
  116 }
  117 
  118 static int
  119 acpi_syscont_detach(device_t dev)
  120 {
  121 
  122     return (bus_generic_detach(dev));
  123 }
  124 
  125 static int
  126 acpi_syscont_alloc_msi(device_t bus, device_t dev, int count, int maxcount,
  127     int *irqs)
  128 {
  129     device_t parent = device_get_parent(bus);
  130 
  131     return (PCIB_ALLOC_MSI(device_get_parent(parent), dev, count, maxcount,
  132         irqs));
  133 }
  134 
  135 static int
  136 acpi_syscont_release_msi(device_t bus, device_t dev, int count, int *irqs)
  137 {
  138     device_t parent = device_get_parent(bus);
  139 
  140     return (PCIB_RELEASE_MSI(device_get_parent(parent), dev, count, irqs));
  141 }
  142 
  143 static int
  144 acpi_syscont_alloc_msix(device_t bus, device_t dev, int *irq)
  145 {
  146     device_t parent = device_get_parent(bus);
  147 
  148     return (PCIB_ALLOC_MSIX(device_get_parent(parent), dev, irq));
  149 }
  150 
  151 static int
  152 acpi_syscont_release_msix(device_t bus, device_t dev, int irq)
  153 {
  154     device_t parent = device_get_parent(bus);
  155 
  156     return (PCIB_RELEASE_MSIX(device_get_parent(parent), dev, irq));
  157 }
  158 
  159 static int
  160 acpi_syscont_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
  161     uint32_t *data)
  162 {
  163     device_t parent = device_get_parent(bus);
  164 
  165     return (PCIB_MAP_MSI(device_get_parent(parent), dev, irq, addr, data));
  166 }

Cache object: 4464ffc252112aad9dbfa0cce42a8060


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