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 #include <sys/param.h>
29 #include <sys/kernel.h>
30 #include <sys/bus.h>
31 #include <sys/module.h>
32
33 #include <contrib/dev/acpica/include/acpi.h>
34 #include <dev/acpica/acpivar.h>
35
36 #include "pcib_if.h"
37
38 ACPI_MODULE_NAME("CONTAINER")
39
40 static int acpi_syscont_probe(device_t);
41 static int acpi_syscont_attach(device_t);
42 static int acpi_syscont_alloc_msi(device_t, device_t,
43 int count, int maxcount, int *irqs);
44 static int acpi_syscont_release_msi(device_t bus, device_t dev,
45 int count, int *irqs);
46 static int acpi_syscont_alloc_msix(device_t bus, device_t dev,
47 int *irq);
48 static int acpi_syscont_release_msix(device_t bus, device_t dev,
49 int irq);
50 static int acpi_syscont_map_msi(device_t bus, device_t dev,
51 int irq, uint64_t *addr, uint32_t *data);
52
53 static device_method_t acpi_syscont_methods[] = {
54 /* Device interface */
55 DEVMETHOD(device_probe, acpi_syscont_probe),
56 DEVMETHOD(device_attach, acpi_syscont_attach),
57 DEVMETHOD(device_detach, bus_generic_detach),
58
59 /* Bus interface */
60 DEVMETHOD(bus_add_child, bus_generic_add_child),
61 DEVMETHOD(bus_print_child, bus_generic_print_child),
62 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
63 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
64 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
65 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
66 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
67 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
68 DEVMETHOD(bus_get_cpus, bus_generic_get_cpus),
69
70 /* pcib interface */
71 DEVMETHOD(pcib_alloc_msi, acpi_syscont_alloc_msi),
72 DEVMETHOD(pcib_release_msi, acpi_syscont_release_msi),
73 DEVMETHOD(pcib_alloc_msix, acpi_syscont_alloc_msix),
74 DEVMETHOD(pcib_release_msix, acpi_syscont_release_msix),
75 DEVMETHOD(pcib_map_msi, acpi_syscont_map_msi),
76
77 DEVMETHOD_END
78 };
79
80 static driver_t acpi_syscont_driver = {
81 "acpi_syscontainer",
82 acpi_syscont_methods,
83 0,
84 };
85
86 DRIVER_MODULE(acpi_syscontainer, acpi, acpi_syscont_driver, NULL, NULL);
87 MODULE_DEPEND(acpi_syscontainer, acpi, 1, 1, 1);
88
89 static int
acpi_syscont_probe(device_t dev)90 acpi_syscont_probe(device_t dev)
91 {
92 static char *syscont_ids[] = { "ACPI0004", "PNP0A05", "PNP0A06", NULL };
93 int rv;
94
95 if (acpi_disabled("syscontainer"))
96 return (ENXIO);
97 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, syscont_ids, NULL);
98 if (rv <= 0)
99 device_set_desc(dev, "System Container");
100 return (rv);
101 }
102
103 static int
acpi_syscont_attach(device_t dev)104 acpi_syscont_attach(device_t dev)
105 {
106
107 bus_generic_probe(dev);
108 return (bus_generic_attach(dev));
109 }
110
111 static int
acpi_syscont_alloc_msi(device_t bus,device_t dev,int count,int maxcount,int * irqs)112 acpi_syscont_alloc_msi(device_t bus, device_t dev, int count, int maxcount,
113 int *irqs)
114 {
115 device_t parent = device_get_parent(bus);
116
117 return (PCIB_ALLOC_MSI(device_get_parent(parent), dev, count, maxcount,
118 irqs));
119 }
120
121 static int
acpi_syscont_release_msi(device_t bus,device_t dev,int count,int * irqs)122 acpi_syscont_release_msi(device_t bus, device_t dev, int count, int *irqs)
123 {
124 device_t parent = device_get_parent(bus);
125
126 return (PCIB_RELEASE_MSI(device_get_parent(parent), dev, count, irqs));
127 }
128
129 static int
acpi_syscont_alloc_msix(device_t bus,device_t dev,int * irq)130 acpi_syscont_alloc_msix(device_t bus, device_t dev, int *irq)
131 {
132 device_t parent = device_get_parent(bus);
133
134 return (PCIB_ALLOC_MSIX(device_get_parent(parent), dev, irq));
135 }
136
137 static int
acpi_syscont_release_msix(device_t bus,device_t dev,int irq)138 acpi_syscont_release_msix(device_t bus, device_t dev, int irq)
139 {
140 device_t parent = device_get_parent(bus);
141
142 return (PCIB_RELEASE_MSIX(device_get_parent(parent), dev, irq));
143 }
144
145 static int
acpi_syscont_map_msi(device_t bus,device_t dev,int irq,uint64_t * addr,uint32_t * data)146 acpi_syscont_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
147 uint32_t *data)
148 {
149 device_t parent = device_get_parent(bus);
150
151 return (PCIB_MAP_MSI(device_get_parent(parent), dev, irq, addr, data));
152 }
153