2 * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Host to PCI and PCI to PCI bridge drivers that use the MP Table to route
32 * interrupts from PCI devices to I/O APICs.
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/param.h>
39 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/module.h>
45 #include <dev/pci/pcireg.h>
46 #include <dev/pci/pcivar.h>
47 #include <dev/pci/pcib_private.h>
48 #include <machine/legacyvar.h>
49 #include <machine/mptable.h>
50 #include <machine/pci_cfgreg.h>
54 /* Host to PCI bridge driver. */
57 mptable_hostb_probe(device_t dev)
60 if (pci_cfgregopen() == 0)
62 if (mptable_pci_probe_table(pcib_get_bus(dev)) != 0)
64 device_set_desc(dev, "MPTable Host-PCI bridge");
69 mptable_hostb_attach(device_t dev)
72 device_add_child(dev, "pci", pcib_get_bus(dev));
73 return (bus_generic_attach(dev));
76 /* Pass MSI requests up to the nexus. */
78 mptable_hostb_alloc_msi(device_t pcib, device_t dev, int count, int maxcount,
83 bus = device_get_parent(pcib);
84 return (PCIB_ALLOC_MSI(device_get_parent(bus), dev, count, maxcount,
89 mptable_hostb_alloc_msix(device_t pcib, device_t dev, int *irq)
93 bus = device_get_parent(pcib);
94 return (PCIB_ALLOC_MSIX(device_get_parent(bus), dev, irq));
98 mptable_hostb_map_msi(device_t pcib, device_t dev, int irq, uint64_t *addr,
103 bus = device_get_parent(pcib);
104 return (PCIB_MAP_MSI(device_get_parent(bus), dev, irq, addr, data));
107 static device_method_t mptable_hostb_methods[] = {
108 /* Device interface */
109 DEVMETHOD(device_probe, mptable_hostb_probe),
110 DEVMETHOD(device_attach, mptable_hostb_attach),
111 DEVMETHOD(device_shutdown, bus_generic_shutdown),
112 DEVMETHOD(device_suspend, bus_generic_suspend),
113 DEVMETHOD(device_resume, bus_generic_resume),
116 DEVMETHOD(bus_print_child, bus_generic_print_child),
117 DEVMETHOD(bus_read_ivar, legacy_pcib_read_ivar),
118 DEVMETHOD(bus_write_ivar, legacy_pcib_write_ivar),
119 DEVMETHOD(bus_alloc_resource, legacy_pcib_alloc_resource),
120 DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource),
121 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
122 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
123 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
124 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
125 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
128 DEVMETHOD(pcib_maxslots, legacy_pcib_maxslots),
129 DEVMETHOD(pcib_read_config, legacy_pcib_read_config),
130 DEVMETHOD(pcib_write_config, legacy_pcib_write_config),
131 DEVMETHOD(pcib_route_interrupt, mptable_pci_route_interrupt),
132 DEVMETHOD(pcib_alloc_msi, mptable_hostb_alloc_msi),
133 DEVMETHOD(pcib_release_msi, pcib_release_msi),
134 DEVMETHOD(pcib_alloc_msix, mptable_hostb_alloc_msix),
135 DEVMETHOD(pcib_release_msix, pcib_release_msix),
136 DEVMETHOD(pcib_map_msi, mptable_hostb_map_msi),
141 static devclass_t hostb_devclass;
143 DEFINE_CLASS_0(pcib, mptable_hostb_driver, mptable_hostb_methods, 1);
144 DRIVER_MODULE(mptable_pcib, legacy, mptable_hostb_driver, hostb_devclass, 0, 0);
146 /* PCI to PCI bridge driver. */
149 mptable_pcib_probe(device_t dev)
153 if ((pci_get_class(dev) != PCIC_BRIDGE) ||
154 (pci_get_subclass(dev) != PCIS_BRIDGE_PCI))
156 bus = pci_read_config(dev, PCIR_SECBUS_1, 1);
159 if (mptable_pci_probe_table(bus) != 0)
161 device_set_desc(dev, "MPTable PCI-PCI bridge");
165 static device_method_t mptable_pcib_pci_methods[] = {
166 /* Device interface */
167 DEVMETHOD(device_probe, mptable_pcib_probe),
168 DEVMETHOD(device_attach, pcib_attach),
169 DEVMETHOD(device_shutdown, bus_generic_shutdown),
170 DEVMETHOD(device_suspend, bus_generic_suspend),
171 DEVMETHOD(device_resume, bus_generic_resume),
174 DEVMETHOD(bus_print_child, bus_generic_print_child),
175 DEVMETHOD(bus_read_ivar, pcib_read_ivar),
176 DEVMETHOD(bus_write_ivar, pcib_write_ivar),
177 DEVMETHOD(bus_alloc_resource, pcib_alloc_resource),
178 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
179 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
180 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
181 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
182 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
185 DEVMETHOD(pcib_maxslots, pcib_maxslots),
186 DEVMETHOD(pcib_read_config, pcib_read_config),
187 DEVMETHOD(pcib_write_config, pcib_write_config),
188 DEVMETHOD(pcib_route_interrupt, mptable_pci_route_interrupt),
189 DEVMETHOD(pcib_alloc_msi, pcib_alloc_msi),
190 DEVMETHOD(pcib_release_msi, pcib_release_msi),
191 DEVMETHOD(pcib_alloc_msix, pcib_alloc_msix),
192 DEVMETHOD(pcib_release_msix, pcib_release_msix),
193 DEVMETHOD(pcib_map_msi, pcib_map_msi),
198 static devclass_t pcib_devclass;
200 DEFINE_CLASS_0(pcib, mptable_pcib_driver, mptable_pcib_pci_methods,
201 sizeof(struct pcib_softc));
202 DRIVER_MODULE(mptable_pcib, pci, mptable_pcib_driver, pcib_devclass, 0, 0);