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/param.h>
28 #include <sys/kernel.h>
29 #include <sys/bus.h>
30 #include <sys/module.h>
31
32 #include <contrib/dev/acpica/include/acpi.h>
33 #include <dev/acpica/acpivar.h>
34
35 #include "pcib_if.h"
36
37 ACPI_MODULE_NAME("CONTAINER")
38
39 static int acpi_syscont_probe(device_t);
40 static int acpi_syscont_attach(device_t);
41 static int acpi_syscont_alloc_msi(device_t, device_t,
42 int count, int maxcount, int *irqs);
43 static int acpi_syscont_release_msi(device_t bus, device_t dev,
44 int count, int *irqs);
45 static int acpi_syscont_alloc_msix(device_t bus, device_t dev,
46 int *irq);
47 static int acpi_syscont_release_msix(device_t bus, device_t dev,
48 int irq);
49 static int acpi_syscont_map_msi(device_t bus, device_t dev,
50 int irq, uint64_t *addr, uint32_t *data);
51
52 static device_method_t acpi_syscont_methods[] = {
53 /* Device interface */
54 DEVMETHOD(device_probe, acpi_syscont_probe),
55 DEVMETHOD(device_attach, acpi_syscont_attach),
56 DEVMETHOD(device_detach, bus_generic_detach),
57
58 /* Bus interface */
59 DEVMETHOD(bus_add_child, bus_generic_add_child),
60 DEVMETHOD(bus_print_child, bus_generic_print_child),
61 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
62 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
63 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
64 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
65 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
66 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
67 DEVMETHOD(bus_get_cpus, bus_generic_get_cpus),
68
69 /* pcib interface */
70 DEVMETHOD(pcib_alloc_msi, acpi_syscont_alloc_msi),
71 DEVMETHOD(pcib_release_msi, acpi_syscont_release_msi),
72 DEVMETHOD(pcib_alloc_msix, acpi_syscont_alloc_msix),
73 DEVMETHOD(pcib_release_msix, acpi_syscont_release_msix),
74 DEVMETHOD(pcib_map_msi, acpi_syscont_map_msi),
75
76 DEVMETHOD_END
77 };
78
79 static driver_t acpi_syscont_driver = {
80 "acpi_syscontainer",
81 acpi_syscont_methods,
82 0,
83 };
84
85 DRIVER_MODULE(acpi_syscontainer, acpi, acpi_syscont_driver, NULL, NULL);
86 MODULE_DEPEND(acpi_syscontainer, acpi, 1, 1, 1);
87
88 static int
acpi_syscont_probe(device_t dev)89 acpi_syscont_probe(device_t dev)
90 {
91 static char *syscont_ids[] = { "ACPI0004", "PNP0A05", "PNP0A06", NULL };
92 int rv;
93
94 if (acpi_disabled("syscontainer"))
95 return (ENXIO);
96 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, syscont_ids, NULL);
97 if (rv <= 0)
98 device_set_desc(dev, "System Container");
99 return (rv);
100 }
101
102 static int
acpi_syscont_attach(device_t dev)103 acpi_syscont_attach(device_t dev)
104 {
105
106 bus_generic_probe(dev);
107 return (bus_generic_attach(dev));
108 }
109
110 static int
acpi_syscont_alloc_msi(device_t bus,device_t dev,int count,int maxcount,int * irqs)111 acpi_syscont_alloc_msi(device_t bus, device_t dev, int count, int maxcount,
112 int *irqs)
113 {
114 device_t parent = device_get_parent(bus);
115
116 return (PCIB_ALLOC_MSI(device_get_parent(parent), dev, count, maxcount,
117 irqs));
118 }
119
120 static int
acpi_syscont_release_msi(device_t bus,device_t dev,int count,int * irqs)121 acpi_syscont_release_msi(device_t bus, device_t dev, int count, int *irqs)
122 {
123 device_t parent = device_get_parent(bus);
124
125 return (PCIB_RELEASE_MSI(device_get_parent(parent), dev, count, irqs));
126 }
127
128 static int
acpi_syscont_alloc_msix(device_t bus,device_t dev,int * irq)129 acpi_syscont_alloc_msix(device_t bus, device_t dev, int *irq)
130 {
131 device_t parent = device_get_parent(bus);
132
133 return (PCIB_ALLOC_MSIX(device_get_parent(parent), dev, irq));
134 }
135
136 static int
acpi_syscont_release_msix(device_t bus,device_t dev,int irq)137 acpi_syscont_release_msix(device_t bus, device_t dev, int irq)
138 {
139 device_t parent = device_get_parent(bus);
140
141 return (PCIB_RELEASE_MSIX(device_get_parent(parent), dev, irq));
142 }
143
144 static int
acpi_syscont_map_msi(device_t bus,device_t dev,int irq,uint64_t * addr,uint32_t * data)145 acpi_syscont_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
146 uint32_t *data)
147 {
148 device_t parent = device_get_parent(bus);
149
150 return (PCIB_MAP_MSI(device_get_parent(parent), dev, irq, addr, data));
151 }
152