sys/dev/dpaa/qman_fdt.c

   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 DRIVER_MODULE(qman, simplebus, qman_driver, qman_devclass, 0, 0);
  72
  73 static int
  74 qman_fdt_probe(device_t dev)
  75 {
  76
  77         if (!ofw_bus_is_compatible(dev, "fsl,qman"))
  78                 return (ENXIO);
  79
  80         device_set_desc(dev, FQMAN_DEVSTR);
  81
  82         return (BUS_PROBE_DEFAULT);
  83 }
  84
  85 /*
  86  * QMAN Portals
  87  */
  88 #define QMAN_PORT_DEVSTR        "Freescale Queue Manager - Portals"
  89
  90 static device_probe_t qman_portals_fdt_probe;
  91 static device_attach_t qman_portals_fdt_attach;
  92
  93 static device_method_t qm_portals_methods[] = {
  94         /* Device interface */
  95         DEVMETHOD(device_probe,         qman_portals_fdt_probe),
  96         DEVMETHOD(device_attach,        qman_portals_fdt_attach),
  97         DEVMETHOD(device_detach,        qman_portals_detach),
  98
  99         { 0, 0 }
 100 };
 101
 102 static driver_t qm_portals_driver = {
 103         "qman-portals",
 104         qm_portals_methods,
 105         sizeof(struct dpaa_portals_softc),
 106 };
 107
 108 static devclass_t qm_portals_devclass;
 109 EARLY_DRIVER_MODULE(qman_portals, ofwbus, qm_portals_driver,
 110     qm_portals_devclass, 0, 0, BUS_PASS_BUS);
 111
 112 static void
 113 get_addr_props(phandle_t node, uint32_t *addrp, uint32_t *sizep)
 114 {
 115
 116         *addrp = 2;
 117         *sizep = 1;
 118         OF_getencprop(node, "#address-cells", addrp, sizeof(*addrp));
 119         OF_getencprop(node, "#size-cells", sizep, sizeof(*sizep));
 120 }
 121
 122 static int
 123 qman_portals_fdt_probe(device_t dev)
 124 {
 125         phandle_t node;
 126
 127         if (ofw_bus_is_compatible(dev, "simple-bus")) {
 128                 node = ofw_bus_get_node(dev);
 129                 for (node = OF_child(node); node > 0; node = OF_peer(node)) {
 130                         if (ofw_bus_node_is_compatible(node, "fsl,qman-portal"))
 131                                 break;
 132                 }
 133                 if (node <= 0)
 134                         return (ENXIO);
 135         } else if (!ofw_bus_is_compatible(dev, "fsl,qman-portals"))
 136                 return (ENXIO);
 137
 138         device_set_desc(dev, QMAN_PORT_DEVSTR);
 139
 140         return (BUS_PROBE_DEFAULT);
 141 }
 142
 143 static phandle_t
 144 qman_portal_find_cpu(int cpu)
 145 {
 146         phandle_t node;
 147         pcell_t reg;
 148
 149         node = OF_finddevice("/cpus");
 150         if (node == -1)
 151                 return (-1);
 152
 153         for (node = OF_child(node); node != 0; node = OF_peer(node)) {
 154                 if (OF_getprop(node, "reg", &reg, sizeof(reg)) <= 0)
 155                         continue;
 156                 if (reg == cpu)
 157                         return (node);
 158         }
 159         return (-1);
 160 }
 161
 162 static int
 163 qman_portals_fdt_attach(device_t dev)
 164 {
 165         struct dpaa_portals_softc *sc;
 166         phandle_t node, child, cpu_node;
 167         vm_paddr_t portal_pa, portal_par_pa;
 168         vm_size_t portal_size;
 169         uint32_t addr, paddr, size;
 170         ihandle_t cpu;
 171         int cpu_num, cpus, intr_rid;
 172         struct dpaa_portals_devinfo di;
 173         struct ofw_bus_devinfo ofw_di = {};
 174         cell_t *range;
 175         int nrange;
 176         int i;
 177
 178         cpus = 0;
 179         sc = device_get_softc(dev);
 180         sc->sc_dev = dev;
 181
 182         node = ofw_bus_get_node(dev);
 183
 184         /* Get this node's range */
 185         get_addr_props(ofw_bus_get_node(device_get_parent(dev)), &paddr, &size);
 186         get_addr_props(node, &addr, &size);
 187
 188         nrange = OF_getencprop_alloc(node, "ranges",
 189             sizeof(*range), (void **)&range);
 190         if (nrange < addr + paddr + size)
 191                 return (ENXIO);
 192         portal_pa = portal_par_pa = 0;
 193         portal_size = 0;
 194         for (i = 0; i < addr; i++) {
 195                 portal_pa <<= 32;
 196                 portal_pa |= range[i];
 197         }
 198         for (; i < paddr + addr; i++) {
 199                 portal_par_pa <<= 32;
 200                 portal_par_pa |= range[i];
 201         }
 202         portal_pa += portal_par_pa;
 203         for (; i < size + paddr + addr; i++) {
 204                 portal_size = (uintmax_t)portal_size << 32;
 205                 portal_size |= range[i];
 206         }
 207         OF_prop_free(range);
 208         sc->sc_dp_size = portal_size;
 209         sc->sc_dp_pa = portal_pa;
 210
 211         /* Find portals tied to CPUs */
 212         for (child = OF_child(node); child != 0; child = OF_peer(child)) {
 213                 if (cpus >= mp_ncpus)
 214                         break;
 215                 if (!ofw_bus_node_is_compatible(child, "fsl,qman-portal")) {
 216                         continue;
 217                 }
 218                 /* Checkout related cpu */
 219                 if (OF_getprop(child, "cpu-handle", (void *)&cpu,
 220                     sizeof(cpu)) <= 0) {
 221                         cpu = qman_portal_find_cpu(cpus);
 222                         if (cpu <= 0)
 223                                 continue;
 224                 }
 225                 /* Acquire cpu number */
 226                 cpu_node = OF_instance_to_package(cpu);
 227                 if (OF_getencprop(cpu_node, "reg", &cpu_num, sizeof(cpu_num)) <= 0) {
 228                         device_printf(dev, "Could not retrieve CPU number.\n");
 229                         return (ENXIO);
 230                 }
 231
 232                 cpus++;
 233
 234                 if (ofw_bus_gen_setup_devinfo(&ofw_di, child) != 0) {
 235                         device_printf(dev, "could not set up devinfo\n");
 236                         continue;
 237                 }
 238
 239                 resource_list_init(&di.di_res);
 240                 if (ofw_bus_reg_to_rl(dev, child, addr, size, &di.di_res)) {
 241                         device_printf(dev, "%s: could not process 'reg' "
 242                             "property\n", ofw_di.obd_name);
 243                         ofw_bus_gen_destroy_devinfo(&ofw_di);
 244                         continue;
 245                 }
 246                 if (ofw_bus_intr_to_rl(dev, child, &di.di_res, &intr_rid)) {
 247                         device_printf(dev, "%s: could not process "
 248                             "'interrupts' property\n", ofw_di.obd_name);
 249                         resource_list_free(&di.di_res);
 250                         ofw_bus_gen_destroy_devinfo(&ofw_di);
 251                         continue;
 252                 }
 253                 di.di_intr_rid = intr_rid;
 254
 255                 if (dpaa_portal_alloc_res(dev, &di, cpu_num))
 256                         goto err;
 257         }
 258
 259         ofw_bus_gen_destroy_devinfo(&ofw_di);
 260
 261         return (qman_portals_attach(dev));
 262 err:
 263         resource_list_free(&di.di_res);
 264         ofw_bus_gen_destroy_devinfo(&ofw_di);
 265         qman_portals_detach(dev);
 266         return (ENXIO);
 267 }