1 /*- 2 * Copyright (c) 2011-2012 Semihalf. 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 THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include "opt_platform.h" 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/bus.h> 35 #include <sys/module.h> 36 #include <sys/smp.h> 37 38 #include <machine/bus.h> 39 40 #include <dev/ofw/ofw_bus.h> 41 #include <dev/ofw/ofw_bus_subr.h> 42 #include <dev/ofw/ofw_subr.h> 43 44 #include "qman.h" 45 #include "portals.h" 46 47 #define FQMAN_DEVSTR "Freescale Queue Manager" 48 49 static int qman_fdt_probe(device_t); 50 51 static device_method_t qman_methods[] = { 52 /* Device interface */ 53 DEVMETHOD(device_probe, qman_fdt_probe), 54 DEVMETHOD(device_attach, qman_attach), 55 DEVMETHOD(device_detach, qman_detach), 56 57 DEVMETHOD(device_suspend, qman_suspend), 58 DEVMETHOD(device_resume, qman_resume), 59 DEVMETHOD(device_shutdown, qman_shutdown), 60 61 { 0, 0 } 62 }; 63 64 static driver_t qman_driver = { 65 "qman", 66 qman_methods, 67 sizeof(struct qman_softc), 68 }; 69 70 static devclass_t qman_devclass; 71 EARLY_DRIVER_MODULE(qman, simplebus, qman_driver, qman_devclass, 0, 0, 72 BUS_PASS_SUPPORTDEV); 73 74 static int 75 qman_fdt_probe(device_t dev) 76 { 77 78 if (!ofw_bus_is_compatible(dev, "fsl,qman")) 79 return (ENXIO); 80 81 device_set_desc(dev, FQMAN_DEVSTR); 82 83 return (BUS_PROBE_DEFAULT); 84 } 85 86 /* 87 * QMAN Portals 88 */ 89 #define QMAN_PORT_DEVSTR "Freescale Queue Manager - Portals" 90 91 static device_probe_t qman_portals_fdt_probe; 92 static device_attach_t qman_portals_fdt_attach; 93 94 static device_method_t qm_portals_methods[] = { 95 /* Device interface */ 96 DEVMETHOD(device_probe, qman_portals_fdt_probe), 97 DEVMETHOD(device_attach, qman_portals_fdt_attach), 98 DEVMETHOD(device_detach, qman_portals_detach), 99 100 { 0, 0 } 101 }; 102 103 static driver_t qm_portals_driver = { 104 "qman-portals", 105 qm_portals_methods, 106 sizeof(struct dpaa_portals_softc), 107 }; 108 109 static devclass_t qm_portals_devclass; 110 EARLY_DRIVER_MODULE(qman_portals, ofwbus, qm_portals_driver, 111 qm_portals_devclass, 0, 0, BUS_PASS_BUS); 112 113 static void 114 get_addr_props(phandle_t node, uint32_t *addrp, uint32_t *sizep) 115 { 116 117 *addrp = 2; 118 *sizep = 1; 119 OF_getencprop(node, "#address-cells", addrp, sizeof(*addrp)); 120 OF_getencprop(node, "#size-cells", sizep, sizeof(*sizep)); 121 } 122 123 static int 124 qman_portals_fdt_probe(device_t dev) 125 { 126 phandle_t node; 127 128 if (ofw_bus_is_compatible(dev, "simple-bus")) { 129 node = ofw_bus_get_node(dev); 130 for (node = OF_child(node); node > 0; node = OF_peer(node)) { 131 if (ofw_bus_node_is_compatible(node, "fsl,qman-portal")) 132 break; 133 } 134 if (node <= 0) 135 return (ENXIO); 136 } else if (!ofw_bus_is_compatible(dev, "fsl,qman-portals")) 137 return (ENXIO); 138 139 device_set_desc(dev, QMAN_PORT_DEVSTR); 140 141 return (BUS_PROBE_DEFAULT); 142 } 143 144 static phandle_t 145 qman_portal_find_cpu(int cpu) 146 { 147 phandle_t node; 148 pcell_t reg; 149 150 node = OF_finddevice("/cpus"); 151 if (node == -1) 152 return (-1); 153 154 for (node = OF_child(node); node != 0; node = OF_peer(node)) { 155 if (OF_getprop(node, "reg", ®, sizeof(reg)) <= 0) 156 continue; 157 if (reg == cpu) 158 return (node); 159 } 160 return (-1); 161 } 162 163 static int 164 qman_portals_fdt_attach(device_t dev) 165 { 166 struct dpaa_portals_softc *sc; 167 phandle_t node, child, cpu_node; 168 vm_paddr_t portal_pa, portal_par_pa; 169 vm_size_t portal_size; 170 uint32_t addr, paddr, size; 171 ihandle_t cpu; 172 int cpu_num, cpus, intr_rid; 173 struct dpaa_portals_devinfo di; 174 struct ofw_bus_devinfo ofw_di = {}; 175 cell_t *range; 176 int nrange; 177 int i; 178 179 cpus = 0; 180 sc = device_get_softc(dev); 181 sc->sc_dev = dev; 182 183 node = ofw_bus_get_node(dev); 184 185 /* Get this node's range */ 186 get_addr_props(ofw_bus_get_node(device_get_parent(dev)), &paddr, &size); 187 get_addr_props(node, &addr, &size); 188 189 nrange = OF_getencprop_alloc_multi(node, "ranges", 190 sizeof(*range), (void **)&range); 191 if (nrange < addr + paddr + size) 192 return (ENXIO); 193 portal_pa = portal_par_pa = 0; 194 portal_size = 0; 195 for (i = 0; i < addr; i++) { 196 portal_pa <<= 32; 197 portal_pa |= range[i]; 198 } 199 for (; i < paddr + addr; i++) { 200 portal_par_pa <<= 32; 201 portal_par_pa |= range[i]; 202 } 203 portal_pa += portal_par_pa; 204 for (; i < size + paddr + addr; i++) { 205 portal_size = (uintmax_t)portal_size << 32; 206 portal_size |= range[i]; 207 } 208 OF_prop_free(range); 209 sc->sc_dp_size = portal_size; 210 sc->sc_dp_pa = portal_pa; 211 212 /* Find portals tied to CPUs */ 213 for (child = OF_child(node); child != 0; child = OF_peer(child)) { 214 if (cpus >= mp_ncpus) 215 break; 216 if (!ofw_bus_node_is_compatible(child, "fsl,qman-portal")) { 217 continue; 218 } 219 /* Checkout related cpu */ 220 if (OF_getprop(child, "cpu-handle", (void *)&cpu, 221 sizeof(cpu)) <= 0) { 222 cpu = qman_portal_find_cpu(cpus); 223 if (cpu <= 0) 224 continue; 225 } 226 /* Acquire cpu number */ 227 cpu_node = OF_instance_to_package(cpu); 228 if (OF_getencprop(cpu_node, "reg", &cpu_num, sizeof(cpu_num)) <= 0) { 229 device_printf(dev, "Could not retrieve CPU number.\n"); 230 return (ENXIO); 231 } 232 233 cpus++; 234 235 if (ofw_bus_gen_setup_devinfo(&ofw_di, child) != 0) { 236 device_printf(dev, "could not set up devinfo\n"); 237 continue; 238 } 239 240 resource_list_init(&di.di_res); 241 if (ofw_bus_reg_to_rl(dev, child, addr, size, &di.di_res)) { 242 device_printf(dev, "%s: could not process 'reg' " 243 "property\n", ofw_di.obd_name); 244 ofw_bus_gen_destroy_devinfo(&ofw_di); 245 continue; 246 } 247 if (ofw_bus_intr_to_rl(dev, child, &di.di_res, &intr_rid)) { 248 device_printf(dev, "%s: could not process " 249 "'interrupts' property\n", ofw_di.obd_name); 250 resource_list_free(&di.di_res); 251 ofw_bus_gen_destroy_devinfo(&ofw_di); 252 continue; 253 } 254 di.di_intr_rid = intr_rid; 255 256 if (dpaa_portal_alloc_res(dev, &di, cpu_num)) 257 goto err; 258 } 259 260 ofw_bus_gen_destroy_devinfo(&ofw_di); 261 262 return (qman_portals_attach(dev)); 263 err: 264 resource_list_free(&di.di_res); 265 ofw_bus_gen_destroy_devinfo(&ofw_di); 266 qman_portals_detach(dev); 267 return (ENXIO); 268 } 269