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 * --- 15 unchanged lines hidden (view full) --- 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 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> --- 5 unchanged lines hidden (view full) --- 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 |
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), --- 7 unchanged lines hidden (view full) --- 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, |
81 sizeof(struct ofw_cpulist_softc) |
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 --- 9 unchanged lines hidden (view full) --- 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; |
108 phandle_t root, child; 109 device_t cdev; 110 struct ofw_bus_devinfo *dinfo; 111 |
112 sc = device_get_softc(dev); |
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 |
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); --- 19 unchanged lines hidden (view full) --- 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]; |
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 */ --- 28 unchanged lines hidden (view full) --- 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; |
201 struct ofw_cpu_softc *sc; 202 phandle_t node; |
203 pcell_t cell; 204 int rv; |
205 206 sc = device_get_softc(dev); |
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); |
213 } |
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 |
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); --- 25 unchanged lines hidden --- |