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
  37 #include <machine/bus.h>
  38
  39 #include <dev/fdt/fdt_common.h>
  40
  41 #include <dev/ofw/ofw_bus.h>
  42 #include <dev/ofw/ofw_bus_subr.h>
  43 #include <dev/ofw/ofw_subr.h>
  44
  45 #include "qman.h"
  46 #include "portals.h"
  47
  48 #define FBMAN_DEVSTR    "Freescale Queue Manager"
  49
  50 static int qman_fdt_probe(device_t);
  51
  52 static device_method_t qman_methods[] = {
  53         /* Device interface */
  54         DEVMETHOD(device_probe,         qman_fdt_probe),
  55         DEVMETHOD(device_attach,        qman_attach),
  56         DEVMETHOD(device_detach,        qman_detach),
  57
  58         DEVMETHOD(device_suspend,       qman_suspend),
  59         DEVMETHOD(device_resume,        qman_resume),
  60         DEVMETHOD(device_shutdown,      qman_shutdown),
  61
  62         { 0, 0 }
  63 };
  64
  65 static driver_t qman_driver = {
  66         "qman",
  67         qman_methods,
  68         sizeof(struct qman_softc),
  69 };
  70
  71 static devclass_t qman_devclass;
  72 DRIVER_MODULE(qman, simplebus, qman_driver, qman_devclass, 0, 0);
  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, FBMAN_DEVSTR);
  82
  83         return (BUS_PROBE_DEFAULT);
  84 }
  85
  86 /*
  87  * BMAN Portals
  88  */
  89 #define BMAN_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 bm_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 bm_portals_driver = {
 104         "qman-portals",
 105         bm_portals_methods,
 106         sizeof(struct dpaa_portals_softc),
 107 };
 108
 109 static devclass_t bm_portals_devclass;
 110 DRIVER_MODULE(qman_portals, ofwbus, bm_portals_driver, bm_portals_devclass, 0, 0);
 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
 126         if (!ofw_bus_is_compatible(dev, "qman-portals"))
 127                 return (ENXIO);
 128
 129         device_set_desc(dev, BMAN_PORT_DEVSTR);
 130
 131         return (BUS_PROBE_DEFAULT);
 132 }
 133
 134 static int
 135 qman_portals_fdt_attach(device_t dev)
 136 {
 137         struct dpaa_portals_softc *sc;
 138         struct resource_list_entry *rle;
 139         phandle_t node, child, cpu_node;
 140         vm_paddr_t portal_pa;
 141         vm_size_t portal_size;
 142         uint32_t addr, size;
 143         ihandle_t cpu;
 144         int cpu_num, cpus, intr_rid;
 145         struct dpaa_portals_devinfo di;
 146         struct ofw_bus_devinfo ofw_di;
 147
 148         cpus = 0;
 149         sc = device_get_softc(dev);
 150         sc->sc_dev = dev;
 151
 152         node = ofw_bus_get_node(dev);
 153         get_addr_props(node, &addr, &size);
 154
 155         /* Find portals tied to CPUs */
 156         for (child = OF_child(node); child != 0; child = OF_peer(child)) {
 157                 if (!fdt_is_compatible(child, "fsl,qman-portal")) {
 158                         continue;
 159                 }
 160                 /* Checkout related cpu */
 161                 if (OF_getprop(child, "cpu-handle", (void *)&cpu,
 162                     sizeof(cpu)) <= 0) {
 163                         continue;
 164                 }
 165                 /* Acquire cpu number */
 166                 cpu_node = OF_instance_to_package(cpu);
 167                 if (OF_getencprop(cpu_node, "reg", &cpu_num, sizeof(cpu_num)) <= 0) {
 168                         device_printf(dev, "Could not retrieve CPU number.\n");
 169                         return (ENXIO);
 170                 }
 171
 172                 cpus++;
 173
 174                 if (cpus > MAXCPU)
 175                         break;
 176
 177                 if (ofw_bus_gen_setup_devinfo(&ofw_di, child) != 0) {
 178                         device_printf(dev, "could not set up devinfo\n");
 179                         continue;
 180                 }
 181
 182                 resource_list_init(&di.di_res);
 183                 if (ofw_bus_reg_to_rl(dev, child, addr, size, &di.di_res)) {
 184                         device_printf(dev, "%s: could not process 'reg' "
 185                             "property\n", ofw_di.obd_name);
 186                         ofw_bus_gen_destroy_devinfo(&ofw_di);
 187                         continue;
 188                 }
 189                 if (ofw_bus_intr_to_rl(dev, child, &di.di_res, &intr_rid)) {
 190                         device_printf(dev, "%s: could not process "
 191                             "'interrupts' property\n", ofw_di.obd_name);
 192                         resource_list_free(&di.di_res);
 193                         ofw_bus_gen_destroy_devinfo(&ofw_di);
 194                         continue;
 195                 }
 196                 di.di_intr_rid = intr_rid;
 197
 198                 ofw_reg_to_paddr(child, 0, &portal_pa, &portal_size, NULL);
 199                 rle = resource_list_find(&di.di_res, SYS_RES_MEMORY, 0);
 200
 201                 if (sc->sc_dp_pa == 0)
 202                         sc->sc_dp_pa = portal_pa - rle->start;
 203
 204                 portal_size = rle->end + 1;
 205                 rle = resource_list_find(&di.di_res, SYS_RES_MEMORY, 1);
 206                 portal_size = ulmax(rle->end + 1, portal_size);
 207                 sc->sc_dp_size = ulmax(sc->sc_dp_size, portal_size);
 208
 209                 if (dpaa_portal_alloc_res(dev, &di, cpu_num))
 210                         goto err;
 211         }
 212
 213         ofw_bus_gen_destroy_devinfo(&ofw_di);
 214
 215         return (qman_portals_attach(dev));
 216 err:
 217         resource_list_free(&di.di_res);
 218         ofw_bus_gen_destroy_devinfo(&ofw_di);
 219         qman_portals_detach(dev);
 220         return (ENXIO);
 221 }