1/*- 2 * Copyright (C) 2009 Nathan Whitehorn 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, 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 * 14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h>
| 1/*- 2 * Copyright (C) 2009 Nathan Whitehorn 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, 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 * 14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h>
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27__FBSDID("$FreeBSD: head/sys/powerpc/ofw/ofw_cpu.c 227843 2011-11-22 21:28:20Z marius $");
| 27__FBSDID("$FreeBSD: head/sys/powerpc/ofw/ofw_cpu.c 252115 2013-06-23 14:20:54Z jhibbits $");
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28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/module.h> 33#include <sys/malloc.h> 34#include <sys/bus.h> 35#include <sys/cpu.h> 36#include <machine/bus.h> 37 38#include <dev/ofw/openfirm.h> 39#include <dev/ofw/ofw_bus.h> 40#include <dev/ofw/ofw_bus_subr.h> 41 42static int ofw_cpulist_probe(device_t); 43static int ofw_cpulist_attach(device_t); 44static const struct ofw_bus_devinfo *ofw_cpulist_get_devinfo(device_t dev, 45 device_t child); 46 47static MALLOC_DEFINE(M_OFWCPU, "ofwcpu", "OFW CPU device information"); 48 49static device_method_t ofw_cpulist_methods[] = { 50 /* Device interface */ 51 DEVMETHOD(device_probe, ofw_cpulist_probe), 52 DEVMETHOD(device_attach, ofw_cpulist_attach), 53 54 /* Bus interface */ 55 DEVMETHOD(bus_add_child, bus_generic_add_child), 56 DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), 57 58 /* ofw_bus interface */ 59 DEVMETHOD(ofw_bus_get_devinfo, ofw_cpulist_get_devinfo), 60 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 61 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 62 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 63 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 64 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 65 66 DEVMETHOD_END 67}; 68 69static driver_t ofw_cpulist_driver = { 70 "cpulist", 71 ofw_cpulist_methods, 72 0 73}; 74 75static devclass_t ofw_cpulist_devclass; 76 77DRIVER_MODULE(ofw_cpulist, nexus, ofw_cpulist_driver, ofw_cpulist_devclass, 78 0, 0); 79 80static int 81ofw_cpulist_probe(device_t dev) 82{ 83 const char *name; 84 85 name = ofw_bus_get_name(dev); 86 87 if (name == NULL || strcmp(name, "cpus") != 0) 88 return (ENXIO); 89 90 device_set_desc(dev, "Open Firmware CPU Group"); 91 92 return (0); 93} 94 95static int 96ofw_cpulist_attach(device_t dev) 97{ 98 phandle_t root, child; 99 device_t cdev; 100 struct ofw_bus_devinfo *dinfo; 101 102 root = ofw_bus_get_node(dev); 103 104 for (child = OF_child(root); child != 0; child = OF_peer(child)) { 105 dinfo = malloc(sizeof(*dinfo), M_OFWCPU, M_WAITOK | M_ZERO); 106 107 if (ofw_bus_gen_setup_devinfo(dinfo, child) != 0) { 108 free(dinfo, M_OFWCPU); 109 continue; 110 } 111 cdev = device_add_child(dev, NULL, -1); 112 if (cdev == NULL) { 113 device_printf(dev, "<%s>: device_add_child failed\n", 114 dinfo->obd_name); 115 ofw_bus_gen_destroy_devinfo(dinfo); 116 free(dinfo, M_OFWCPU); 117 continue; 118 } 119 device_set_ivars(cdev, dinfo); 120 } 121 122 return (bus_generic_attach(dev)); 123} 124 125static const struct ofw_bus_devinfo * 126ofw_cpulist_get_devinfo(device_t dev, device_t child) 127{ 128 return (device_get_ivars(child)); 129} 130 131static int ofw_cpu_probe(device_t); 132static int ofw_cpu_attach(device_t); 133static int ofw_cpu_read_ivar(device_t dev, device_t child, int index, 134 uintptr_t *result); 135
| 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/module.h> 33#include <sys/malloc.h> 34#include <sys/bus.h> 35#include <sys/cpu.h> 36#include <machine/bus.h> 37 38#include <dev/ofw/openfirm.h> 39#include <dev/ofw/ofw_bus.h> 40#include <dev/ofw/ofw_bus_subr.h> 41 42static int ofw_cpulist_probe(device_t); 43static int ofw_cpulist_attach(device_t); 44static const struct ofw_bus_devinfo *ofw_cpulist_get_devinfo(device_t dev, 45 device_t child); 46 47static MALLOC_DEFINE(M_OFWCPU, "ofwcpu", "OFW CPU device information"); 48 49static device_method_t ofw_cpulist_methods[] = { 50 /* Device interface */ 51 DEVMETHOD(device_probe, ofw_cpulist_probe), 52 DEVMETHOD(device_attach, ofw_cpulist_attach), 53 54 /* Bus interface */ 55 DEVMETHOD(bus_add_child, bus_generic_add_child), 56 DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), 57 58 /* ofw_bus interface */ 59 DEVMETHOD(ofw_bus_get_devinfo, ofw_cpulist_get_devinfo), 60 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 61 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 62 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 63 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 64 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 65 66 DEVMETHOD_END 67}; 68 69static driver_t ofw_cpulist_driver = { 70 "cpulist", 71 ofw_cpulist_methods, 72 0 73}; 74 75static devclass_t ofw_cpulist_devclass; 76 77DRIVER_MODULE(ofw_cpulist, nexus, ofw_cpulist_driver, ofw_cpulist_devclass, 78 0, 0); 79 80static int 81ofw_cpulist_probe(device_t dev) 82{ 83 const char *name; 84 85 name = ofw_bus_get_name(dev); 86 87 if (name == NULL || strcmp(name, "cpus") != 0) 88 return (ENXIO); 89 90 device_set_desc(dev, "Open Firmware CPU Group"); 91 92 return (0); 93} 94 95static int 96ofw_cpulist_attach(device_t dev) 97{ 98 phandle_t root, child; 99 device_t cdev; 100 struct ofw_bus_devinfo *dinfo; 101 102 root = ofw_bus_get_node(dev); 103 104 for (child = OF_child(root); child != 0; child = OF_peer(child)) { 105 dinfo = malloc(sizeof(*dinfo), M_OFWCPU, M_WAITOK | M_ZERO); 106 107 if (ofw_bus_gen_setup_devinfo(dinfo, child) != 0) { 108 free(dinfo, M_OFWCPU); 109 continue; 110 } 111 cdev = device_add_child(dev, NULL, -1); 112 if (cdev == NULL) { 113 device_printf(dev, "<%s>: device_add_child failed\n", 114 dinfo->obd_name); 115 ofw_bus_gen_destroy_devinfo(dinfo); 116 free(dinfo, M_OFWCPU); 117 continue; 118 } 119 device_set_ivars(cdev, dinfo); 120 } 121 122 return (bus_generic_attach(dev)); 123} 124 125static const struct ofw_bus_devinfo * 126ofw_cpulist_get_devinfo(device_t dev, device_t child) 127{ 128 return (device_get_ivars(child)); 129} 130 131static int ofw_cpu_probe(device_t); 132static int ofw_cpu_attach(device_t); 133static int ofw_cpu_read_ivar(device_t dev, device_t child, int index, 134 uintptr_t *result); 135
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| 136struct ofw_cpu_softc { 137 struct pcpu *sc_cpu_pcpu; 138 uint32_t sc_nominal_mhz; 139}; 140
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136static device_method_t ofw_cpu_methods[] = { 137 /* Device interface */ 138 DEVMETHOD(device_probe, ofw_cpu_probe), 139 DEVMETHOD(device_attach, ofw_cpu_attach), 140 141 /* Bus interface */ 142 DEVMETHOD(bus_add_child, bus_generic_add_child), 143 DEVMETHOD(bus_read_ivar, ofw_cpu_read_ivar), 144 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 145 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 146 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), 147 DEVMETHOD(bus_release_resource, bus_generic_release_resource), 148 DEVMETHOD(bus_activate_resource,bus_generic_activate_resource), 149 150 DEVMETHOD_END 151}; 152 153static driver_t ofw_cpu_driver = { 154 "cpu", 155 ofw_cpu_methods, 156 0 157}; 158 159static devclass_t ofw_cpu_devclass; 160 161DRIVER_MODULE(ofw_cpu, cpulist, ofw_cpu_driver, ofw_cpu_devclass, 0, 0); 162 163static int 164ofw_cpu_probe(device_t dev) 165{ 166 const char *type = ofw_bus_get_type(dev); 167 168 if (strcmp(type, "cpu") != 0) 169 return (ENXIO); 170 171 device_set_desc(dev, "Open Firmware CPU"); 172 return (0); 173} 174 175static int 176ofw_cpu_attach(device_t dev) 177{
| 141static device_method_t ofw_cpu_methods[] = { 142 /* Device interface */ 143 DEVMETHOD(device_probe, ofw_cpu_probe), 144 DEVMETHOD(device_attach, ofw_cpu_attach), 145 146 /* Bus interface */ 147 DEVMETHOD(bus_add_child, bus_generic_add_child), 148 DEVMETHOD(bus_read_ivar, ofw_cpu_read_ivar), 149 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 150 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 151 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), 152 DEVMETHOD(bus_release_resource, bus_generic_release_resource), 153 DEVMETHOD(bus_activate_resource,bus_generic_activate_resource), 154 155 DEVMETHOD_END 156}; 157 158static driver_t ofw_cpu_driver = { 159 "cpu", 160 ofw_cpu_methods, 161 0 162}; 163 164static devclass_t ofw_cpu_devclass; 165 166DRIVER_MODULE(ofw_cpu, cpulist, ofw_cpu_driver, ofw_cpu_devclass, 0, 0); 167 168static int 169ofw_cpu_probe(device_t dev) 170{ 171 const char *type = ofw_bus_get_type(dev); 172 173 if (strcmp(type, "cpu") != 0) 174 return (ENXIO); 175 176 device_set_desc(dev, "Open Firmware CPU"); 177 return (0); 178} 179 180static int 181ofw_cpu_attach(device_t dev) 182{
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| 183 struct ofw_cpu_softc *sc; 184 uint32_t cell; 185 186 sc = device_get_softc(dev); 187 OF_getprop(ofw_bus_get_node(dev), "reg", &cell, sizeof(cell)); 188 sc->sc_cpu_pcpu = pcpu_find(cell); 189 OF_getprop(ofw_bus_get_node(dev), "clock-frequency", &cell, sizeof(cell)); 190 sc->sc_nominal_mhz = cell / 1000000; /* convert to MHz */ 191
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178 bus_generic_probe(dev); 179 return (bus_generic_attach(dev)); 180} 181 182static int 183ofw_cpu_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) 184{
| 192 bus_generic_probe(dev); 193 return (bus_generic_attach(dev)); 194} 195 196static int 197ofw_cpu_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) 198{
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185 uint32_t cell;
| 199 struct ofw_cpu_softc *sc;
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186
| 200
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| 201 sc = device_get_softc(dev); 202
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187 switch (index) { 188 case CPU_IVAR_PCPU:
| 203 switch (index) { 204 case CPU_IVAR_PCPU:
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189 OF_getprop(ofw_bus_get_node(dev), "reg", &cell, sizeof(cell)); 190 *result = (uintptr_t)(pcpu_find(cell));
| 205 *result = (uintptr_t)sc->sc_cpu_pcpu;
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191 return (0); 192 case CPU_IVAR_NOMINAL_MHZ:
| 206 return (0); 207 case CPU_IVAR_NOMINAL_MHZ:
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193 cell = 0; 194 OF_getprop(ofw_bus_get_node(dev), "clock-frequency", 195 &cell, sizeof(cell)); 196 cell /= 1000000; /* convert to MHz */ 197 *result = (uintptr_t)(cell);
| 208 *result = (uintptr_t)sc->sc_nominal_mhz;
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198 return (0); 199 } 200 201 return (ENOENT); 202} 203
| 209 return (0); 210 } 211 212 return (ENOENT); 213} 214
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