1/*-
2 * Copyright (C) 2009 Nathan Whitehorn
3 * Copyright (C) 2015 The FreeBSD Foundation
4 * All rights reserved.
5 *
6 * Portions of this software were developed by Andrew Turner
7 * under sponsorship from the FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
| 1/*-
2 * Copyright (C) 2009 Nathan Whitehorn
3 * Copyright (C) 2015 The FreeBSD Foundation
4 * All rights reserved.
5 *
6 * Portions of this software were developed by Andrew Turner
7 * under sponsorship from the FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
|
32__FBSDID("$FreeBSD: head/sys/dev/ofw/ofw_cpu.c 277378 2015-01-19 11:06:56Z andrew $");
| 32__FBSDID("$FreeBSD: head/sys/dev/ofw/ofw_cpu.c 277491 2015-01-21 16:52:24Z andrew $");
|
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/module.h>
38#include <sys/malloc.h>
39#include <sys/bus.h>
40#include <sys/cpu.h>
41#include <machine/bus.h>
42
43#include <dev/ofw/openfirm.h>
44#include <dev/ofw/ofw_bus.h>
45#include <dev/ofw/ofw_bus_subr.h>
46
47static int ofw_cpulist_probe(device_t);
48static int ofw_cpulist_attach(device_t);
49static const struct ofw_bus_devinfo *ofw_cpulist_get_devinfo(device_t dev,
50 device_t child);
51
52static MALLOC_DEFINE(M_OFWCPU, "ofwcpu", "OFW CPU device information");
53
| 33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/module.h>
38#include <sys/malloc.h>
39#include <sys/bus.h>
40#include <sys/cpu.h>
41#include <machine/bus.h>
42
43#include <dev/ofw/openfirm.h>
44#include <dev/ofw/ofw_bus.h>
45#include <dev/ofw/ofw_bus_subr.h>
46
47static int ofw_cpulist_probe(device_t);
48static int ofw_cpulist_attach(device_t);
49static const struct ofw_bus_devinfo *ofw_cpulist_get_devinfo(device_t dev,
50 device_t child);
51
52static MALLOC_DEFINE(M_OFWCPU, "ofwcpu", "OFW CPU device information");
53
|
| 54struct ofw_cpulist_softc {
55 pcell_t sc_addr_cells;
56};
57
|
54static device_method_t ofw_cpulist_methods[] = {
55 /* Device interface */
56 DEVMETHOD(device_probe, ofw_cpulist_probe),
57 DEVMETHOD(device_attach, ofw_cpulist_attach),
58
59 /* Bus interface */
60 DEVMETHOD(bus_add_child, bus_generic_add_child),
61 DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
62
63 /* ofw_bus interface */
64 DEVMETHOD(ofw_bus_get_devinfo, ofw_cpulist_get_devinfo),
65 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
66 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
67 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
68 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
69 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
70
71 DEVMETHOD_END
72};
73
74static driver_t ofw_cpulist_driver = {
75 "cpulist",
76 ofw_cpulist_methods,
| 58static device_method_t ofw_cpulist_methods[] = {
59 /* Device interface */
60 DEVMETHOD(device_probe, ofw_cpulist_probe),
61 DEVMETHOD(device_attach, ofw_cpulist_attach),
62
63 /* Bus interface */
64 DEVMETHOD(bus_add_child, bus_generic_add_child),
65 DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
66
67 /* ofw_bus interface */
68 DEVMETHOD(ofw_bus_get_devinfo, ofw_cpulist_get_devinfo),
69 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
70 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
71 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
72 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
73 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
74
75 DEVMETHOD_END
76};
77
78static driver_t ofw_cpulist_driver = {
79 "cpulist",
80 ofw_cpulist_methods,
|
77 0
| 81 sizeof(struct ofw_cpulist_softc)
|
78};
79
80static devclass_t ofw_cpulist_devclass;
81
82DRIVER_MODULE(ofw_cpulist, ofwbus, ofw_cpulist_driver, ofw_cpulist_devclass,
83 0, 0);
84
85static int
86ofw_cpulist_probe(device_t dev)
87{
88 const char *name;
89
90 name = ofw_bus_get_name(dev);
91
92 if (name == NULL || strcmp(name, "cpus") != 0)
93 return (ENXIO);
94
95 device_set_desc(dev, "Open Firmware CPU Group");
96
97 return (0);
98}
99
100static int
101ofw_cpulist_attach(device_t dev)
102{
| 82};
83
84static devclass_t ofw_cpulist_devclass;
85
86DRIVER_MODULE(ofw_cpulist, ofwbus, ofw_cpulist_driver, ofw_cpulist_devclass,
87 0, 0);
88
89static int
90ofw_cpulist_probe(device_t dev)
91{
92 const char *name;
93
94 name = ofw_bus_get_name(dev);
95
96 if (name == NULL || strcmp(name, "cpus") != 0)
97 return (ENXIO);
98
99 device_set_desc(dev, "Open Firmware CPU Group");
100
101 return (0);
102}
103
104static int
105ofw_cpulist_attach(device_t dev)
106{
|
| 107 struct ofw_cpulist_softc *sc;
|
103 phandle_t root, child;
104 device_t cdev;
105 struct ofw_bus_devinfo *dinfo;
106
| 108 phandle_t root, child;
109 device_t cdev;
110 struct ofw_bus_devinfo *dinfo;
111
|
| 112 sc = device_get_softc(dev);
|
107 root = ofw_bus_get_node(dev);
108
| 113 root = ofw_bus_get_node(dev);
114
|
| 115 sc->sc_addr_cells = 1;
116 OF_getencprop(root, "#address-cells", &sc->sc_addr_cells,
117 sizeof(sc->sc_addr_cells));
118
|
109 for (child = OF_child(root); child != 0; child = OF_peer(child)) {
110 dinfo = malloc(sizeof(*dinfo), M_OFWCPU, M_WAITOK | M_ZERO);
111
112 if (ofw_bus_gen_setup_devinfo(dinfo, child) != 0) {
113 free(dinfo, M_OFWCPU);
114 continue;
115 }
116 cdev = device_add_child(dev, NULL, -1);
117 if (cdev == NULL) {
118 device_printf(dev, "<%s>: device_add_child failed\n",
119 dinfo->obd_name);
120 ofw_bus_gen_destroy_devinfo(dinfo);
121 free(dinfo, M_OFWCPU);
122 continue;
123 }
124 device_set_ivars(cdev, dinfo);
125 }
126
127 return (bus_generic_attach(dev));
128}
129
130static const struct ofw_bus_devinfo *
131ofw_cpulist_get_devinfo(device_t dev, device_t child)
132{
133 return (device_get_ivars(child));
134}
135
136static int ofw_cpu_probe(device_t);
137static int ofw_cpu_attach(device_t);
138static int ofw_cpu_read_ivar(device_t dev, device_t child, int index,
139 uintptr_t *result);
140
141struct ofw_cpu_softc {
142 struct pcpu *sc_cpu_pcpu;
143 uint32_t sc_nominal_mhz;
| 119 for (child = OF_child(root); child != 0; child = OF_peer(child)) {
120 dinfo = malloc(sizeof(*dinfo), M_OFWCPU, M_WAITOK | M_ZERO);
121
122 if (ofw_bus_gen_setup_devinfo(dinfo, child) != 0) {
123 free(dinfo, M_OFWCPU);
124 continue;
125 }
126 cdev = device_add_child(dev, NULL, -1);
127 if (cdev == NULL) {
128 device_printf(dev, "<%s>: device_add_child failed\n",
129 dinfo->obd_name);
130 ofw_bus_gen_destroy_devinfo(dinfo);
131 free(dinfo, M_OFWCPU);
132 continue;
133 }
134 device_set_ivars(cdev, dinfo);
135 }
136
137 return (bus_generic_attach(dev));
138}
139
140static const struct ofw_bus_devinfo *
141ofw_cpulist_get_devinfo(device_t dev, device_t child)
142{
143 return (device_get_ivars(child));
144}
145
146static int ofw_cpu_probe(device_t);
147static int ofw_cpu_attach(device_t);
148static int ofw_cpu_read_ivar(device_t dev, device_t child, int index,
149 uintptr_t *result);
150
151struct ofw_cpu_softc {
152 struct pcpu *sc_cpu_pcpu;
153 uint32_t sc_nominal_mhz;
|
| 154 boolean_t sc_reg_valid;
155 pcell_t sc_reg[2];
|
144};
145
146static device_method_t ofw_cpu_methods[] = {
147 /* Device interface */
148 DEVMETHOD(device_probe, ofw_cpu_probe),
149 DEVMETHOD(device_attach, ofw_cpu_attach),
150
151 /* Bus interface */
152 DEVMETHOD(bus_add_child, bus_generic_add_child),
153 DEVMETHOD(bus_read_ivar, ofw_cpu_read_ivar),
154 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
155 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
156 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
157 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
158 DEVMETHOD(bus_activate_resource,bus_generic_activate_resource),
159
160 DEVMETHOD_END
161};
162
163static driver_t ofw_cpu_driver = {
164 "cpu",
165 ofw_cpu_methods,
166 sizeof(struct ofw_cpu_softc)
167};
168
169static devclass_t ofw_cpu_devclass;
170
171DRIVER_MODULE(ofw_cpu, cpulist, ofw_cpu_driver, ofw_cpu_devclass, 0, 0);
172
173static int
174ofw_cpu_probe(device_t dev)
175{
176 const char *type = ofw_bus_get_type(dev);
177
178 if (type == NULL || strcmp(type, "cpu") != 0)
179 return (ENXIO);
180
181 device_set_desc(dev, "Open Firmware CPU");
182 return (0);
183}
184
185static int
186ofw_cpu_attach(device_t dev)
187{
| 156};
157
158static device_method_t ofw_cpu_methods[] = {
159 /* Device interface */
160 DEVMETHOD(device_probe, ofw_cpu_probe),
161 DEVMETHOD(device_attach, ofw_cpu_attach),
162
163 /* Bus interface */
164 DEVMETHOD(bus_add_child, bus_generic_add_child),
165 DEVMETHOD(bus_read_ivar, ofw_cpu_read_ivar),
166 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
167 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
168 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
169 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
170 DEVMETHOD(bus_activate_resource,bus_generic_activate_resource),
171
172 DEVMETHOD_END
173};
174
175static driver_t ofw_cpu_driver = {
176 "cpu",
177 ofw_cpu_methods,
178 sizeof(struct ofw_cpu_softc)
179};
180
181static devclass_t ofw_cpu_devclass;
182
183DRIVER_MODULE(ofw_cpu, cpulist, ofw_cpu_driver, ofw_cpu_devclass, 0, 0);
184
185static int
186ofw_cpu_probe(device_t dev)
187{
188 const char *type = ofw_bus_get_type(dev);
189
190 if (type == NULL || strcmp(type, "cpu") != 0)
191 return (ENXIO);
192
193 device_set_desc(dev, "Open Firmware CPU");
194 return (0);
195}
196
197static int
198ofw_cpu_attach(device_t dev)
199{
|
| 200 struct ofw_cpulist_softc *psc;
|
188 struct ofw_cpu_softc *sc;
189 phandle_t node;
| 201 struct ofw_cpu_softc *sc;
202 phandle_t node;
|
190 uint32_t cell;
| 203 pcell_t cell;
204 int rv;
|
191
192 sc = device_get_softc(dev);
| 205
206 sc = device_get_softc(dev);
|
193 node = ofw_bus_get_node(dev);
194 if (OF_getencprop(node, "reg", &cell, sizeof(cell)) < 0) {
195 cell = device_get_unit(dev);
196 device_printf(dev, "missing 'reg' property, using %u\n", cell);
| 207 psc = device_get_softc(device_get_parent(dev));
208
209 if (nitems(sc->sc_reg) < psc->sc_addr_cells) {
210 if (bootverbose)
211 device_printf(dev, "Too many address cells\n");
212 return (EINVAL);
|
197 }
| 213 }
|
198 sc->sc_cpu_pcpu = pcpu_find(cell);
| 214
215 node = ofw_bus_get_node(dev);
216
217 /* Read and validate the reg property for use later */
218 sc->sc_reg_valid = false;
219 rv = OF_getencprop(node, "reg", sc->sc_reg, sizeof(sc->sc_reg));
220 if (rv < 0)
221 device_printf(dev, "missing 'reg' property\n");
222 else if ((rv % 4) != 0) {
223 if (bootverbose)
224 device_printf(dev, "Malformed reg property\n");
225 } else if ((rv / 4) != psc->sc_addr_cells) {
226 if (bootverbose)
227 device_printf(dev, "Invalid reg size %u\n", rv);
228 } else
229 sc->sc_reg_valid = true;
230
231 sc->sc_cpu_pcpu = pcpu_find(device_get_unit(dev));
232
|
199 if (OF_getencprop(node, "clock-frequency", &cell, sizeof(cell)) < 0) {
200 if (bootverbose)
201 device_printf(dev,
202 "missing 'clock-frequency' property\n");
203 } else
204 sc->sc_nominal_mhz = cell / 1000000; /* convert to MHz */
205
206 bus_generic_probe(dev);
207 return (bus_generic_attach(dev));
208}
209
210static int
211ofw_cpu_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
212{
213 struct ofw_cpu_softc *sc;
214
215 sc = device_get_softc(dev);
216
217 switch (index) {
218 case CPU_IVAR_PCPU:
219 *result = (uintptr_t)sc->sc_cpu_pcpu;
220 return (0);
221 case CPU_IVAR_NOMINAL_MHZ:
222 if (sc->sc_nominal_mhz > 0) {
223 *result = (uintptr_t)sc->sc_nominal_mhz;
224 return (0);
225 }
226 break;
227 }
228
229 return (ENOENT);
230}
231
| 233 if (OF_getencprop(node, "clock-frequency", &cell, sizeof(cell)) < 0) {
234 if (bootverbose)
235 device_printf(dev,
236 "missing 'clock-frequency' property\n");
237 } else
238 sc->sc_nominal_mhz = cell / 1000000; /* convert to MHz */
239
240 bus_generic_probe(dev);
241 return (bus_generic_attach(dev));
242}
243
244static int
245ofw_cpu_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
246{
247 struct ofw_cpu_softc *sc;
248
249 sc = device_get_softc(dev);
250
251 switch (index) {
252 case CPU_IVAR_PCPU:
253 *result = (uintptr_t)sc->sc_cpu_pcpu;
254 return (0);
255 case CPU_IVAR_NOMINAL_MHZ:
256 if (sc->sc_nominal_mhz > 0) {
257 *result = (uintptr_t)sc->sc_nominal_mhz;
258 return (0);
259 }
260 break;
261 }
262
263 return (ENOENT);
264}
265
|