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 "bman.h" 46 #include "portals.h" 47 48 #define FBMAN_DEVSTR "Freescale Buffer Manager" 49 50 static int bman_fdt_probe(device_t); 51 52 static device_method_t bman_methods[] = { 53 /* Device interface */ 54 DEVMETHOD(device_probe, bman_fdt_probe), 55 DEVMETHOD(device_attach, bman_attach), 56 DEVMETHOD(device_detach, bman_detach), 57 58 DEVMETHOD(device_suspend, bman_suspend), 59 DEVMETHOD(device_resume, bman_resume), 60 DEVMETHOD(device_shutdown, bman_shutdown), 61 62 { 0, 0 } 63 }; 64 65 static driver_t bman_driver = { 66 "bman", 67 bman_methods, 68 sizeof(struct bman_softc), 69 }; 70 71 static devclass_t bman_devclass; 72 DRIVER_MODULE(bman, simplebus, bman_driver, bman_devclass, 0, 0); 73 74 static int 75 bman_fdt_probe(device_t dev) 76 { 77 78 if (!ofw_bus_is_compatible(dev, "fsl,bman")) 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 Buffer Manager - Portals" 90 91 static device_probe_t bman_portals_fdt_probe; 92 static device_attach_t bman_portals_fdt_attach; 93 94 static device_method_t bm_portals_methods[] = { 95 /* Device interface */ 96 DEVMETHOD(device_probe, bman_portals_fdt_probe), 97 DEVMETHOD(device_attach, bman_portals_fdt_attach), 98 DEVMETHOD(device_detach, bman_portals_detach), 99 100 { 0, 0 } 101 }; 102 103 static driver_t bm_portals_driver = { 104 "bman-portals", 105 bm_portals_methods, 106 sizeof(struct dpaa_portals_softc), 107 }; 108 109 static devclass_t bm_portals_devclass; 110 DRIVER_MODULE(bman_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 bman_portals_fdt_probe(device_t dev) 124 { 125 126 if (!ofw_bus_is_compatible(dev, "bman-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 bman_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,bman-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 (bman_portals_attach(dev)); 216 err: 217 resource_list_free(&di.di_res); 218 ofw_bus_gen_destroy_devinfo(&ofw_di); 219 bman_portals_detach(dev); 220 return (ENXIO); 221 } 222