1 /* 2 * PowerMac MacIO device emulation 3 * 4 * Copyright (c) 2005-2007 Fabrice Bellard 5 * Copyright (c) 2007 Jocelyn Mayer 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26 #include "qemu/osdep.h" 27 #include "qapi/error.h" 28 #include "qemu/module.h" 29 #include "hw/ppc/mac.h" 30 #include "hw/misc/macio/cuda.h" 31 #include "hw/pci/pci.h" 32 #include "hw/ppc/mac_dbdma.h" 33 #include "hw/qdev-properties.h" 34 #include "migration/vmstate.h" 35 #include "hw/char/escc.h" 36 #include "hw/misc/macio/macio.h" 37 #include "hw/intc/heathrow_pic.h" 38 #include "sysemu/sysemu.h" 39 #include "trace.h" 40 41 /* Note: this code is strongly inspirated from the corresponding code 42 * in PearPC */ 43 44 /* 45 * The mac-io has two interfaces to the ESCC. One is called "escc-legacy", 46 * while the other one is the normal, current ESCC interface. 47 * 48 * The magic below creates memory aliases to spawn the escc-legacy device 49 * purely by rerouting the respective registers to our escc region. This 50 * works because the only difference between the two memory regions is the 51 * register layout, not their semantics. 52 * 53 * Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf 54 */ 55 static void macio_escc_legacy_setup(MacIOState *s) 56 { 57 ESCCState *escc = ESCC(&s->escc); 58 SysBusDevice *sbd = SYS_BUS_DEVICE(escc); 59 MemoryRegion *escc_legacy = g_new(MemoryRegion, 1); 60 MemoryRegion *bar = &s->bar; 61 int i; 62 static const int maps[] = { 63 0x00, 0x00, /* Command B */ 64 0x02, 0x20, /* Command A */ 65 0x04, 0x10, /* Data B */ 66 0x06, 0x30, /* Data A */ 67 0x08, 0x40, /* Enhancement B */ 68 0x0A, 0x50, /* Enhancement A */ 69 0x80, 0x80, /* Recovery count */ 70 0x90, 0x90, /* Start A */ 71 0xa0, 0xa0, /* Start B */ 72 0xb0, 0xb0, /* Detect AB */ 73 }; 74 75 memory_region_init(escc_legacy, OBJECT(s), "escc-legacy", 256); 76 for (i = 0; i < ARRAY_SIZE(maps); i += 2) { 77 MemoryRegion *port = g_new(MemoryRegion, 1); 78 memory_region_init_alias(port, OBJECT(s), "escc-legacy-port", 79 sysbus_mmio_get_region(sbd, 0), 80 maps[i + 1], 0x2); 81 memory_region_add_subregion(escc_legacy, maps[i], port); 82 } 83 84 memory_region_add_subregion(bar, 0x12000, escc_legacy); 85 } 86 87 static void macio_bar_setup(MacIOState *s) 88 { 89 ESCCState *escc = ESCC(&s->escc); 90 SysBusDevice *sbd = SYS_BUS_DEVICE(escc); 91 MemoryRegion *bar = &s->bar; 92 93 memory_region_add_subregion(bar, 0x13000, sysbus_mmio_get_region(sbd, 0)); 94 macio_escc_legacy_setup(s); 95 } 96 97 static void macio_init_child_obj(MacIOState *s, const char *childname, 98 void *child, size_t childsize, 99 const char *childtype) 100 { 101 object_initialize_child(OBJECT(s), childname, child, childsize, childtype, 102 &error_abort, NULL); 103 qdev_set_parent_bus(DEVICE(child), BUS(&s->macio_bus)); 104 } 105 106 static void macio_common_realize(PCIDevice *d, Error **errp) 107 { 108 MacIOState *s = MACIO(d); 109 SysBusDevice *sysbus_dev; 110 Error *err = NULL; 111 112 object_property_set_bool(OBJECT(&s->dbdma), true, "realized", &err); 113 if (err) { 114 error_propagate(errp, err); 115 return; 116 } 117 sysbus_dev = SYS_BUS_DEVICE(&s->dbdma); 118 memory_region_add_subregion(&s->bar, 0x08000, 119 sysbus_mmio_get_region(sysbus_dev, 0)); 120 121 qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0); 122 qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK); 123 qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4); 124 qdev_prop_set_chr(DEVICE(&s->escc), "chrA", serial_hd(0)); 125 qdev_prop_set_chr(DEVICE(&s->escc), "chrB", serial_hd(1)); 126 qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial); 127 qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial); 128 object_property_set_bool(OBJECT(&s->escc), true, "realized", &err); 129 if (err) { 130 error_propagate(errp, err); 131 return; 132 } 133 134 macio_bar_setup(s); 135 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar); 136 } 137 138 static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide, 139 qemu_irq irq0, qemu_irq irq1, int dmaid, 140 Error **errp) 141 { 142 SysBusDevice *sysbus_dev; 143 144 sysbus_dev = SYS_BUS_DEVICE(ide); 145 sysbus_connect_irq(sysbus_dev, 0, irq0); 146 sysbus_connect_irq(sysbus_dev, 1, irq1); 147 qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid); 148 object_property_set_link(OBJECT(ide), OBJECT(&s->dbdma), "dbdma", errp); 149 macio_ide_register_dma(ide); 150 151 object_property_set_bool(OBJECT(ide), true, "realized", errp); 152 } 153 154 static void macio_oldworld_realize(PCIDevice *d, Error **errp) 155 { 156 MacIOState *s = MACIO(d); 157 OldWorldMacIOState *os = OLDWORLD_MACIO(d); 158 DeviceState *pic_dev = DEVICE(os->pic); 159 Error *err = NULL; 160 SysBusDevice *sysbus_dev; 161 162 macio_common_realize(d, &err); 163 if (err) { 164 error_propagate(errp, err); 165 return; 166 } 167 168 qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency", 169 s->frequency); 170 object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err); 171 if (err) { 172 error_propagate(errp, err); 173 return; 174 } 175 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 176 memory_region_add_subregion(&s->bar, 0x16000, 177 sysbus_mmio_get_region(sysbus_dev, 0)); 178 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 179 OLDWORLD_CUDA_IRQ)); 180 181 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 182 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 183 OLDWORLD_ESCCB_IRQ)); 184 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 185 OLDWORLD_ESCCA_IRQ)); 186 187 object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err); 188 if (err) { 189 error_propagate(errp, err); 190 return; 191 } 192 sysbus_dev = SYS_BUS_DEVICE(&os->nvram); 193 memory_region_add_subregion(&s->bar, 0x60000, 194 sysbus_mmio_get_region(sysbus_dev, 0)); 195 pmac_format_nvram_partition(&os->nvram, os->nvram.size); 196 197 /* Heathrow PIC */ 198 sysbus_dev = SYS_BUS_DEVICE(os->pic); 199 memory_region_add_subregion(&s->bar, 0x0, 200 sysbus_mmio_get_region(sysbus_dev, 0)); 201 202 /* IDE buses */ 203 macio_realize_ide(s, &os->ide[0], 204 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_IRQ), 205 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_DMA_IRQ), 206 0x16, &err); 207 if (err) { 208 error_propagate(errp, err); 209 return; 210 } 211 212 macio_realize_ide(s, &os->ide[1], 213 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_IRQ), 214 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_DMA_IRQ), 215 0x1a, &err); 216 if (err) { 217 error_propagate(errp, err); 218 return; 219 } 220 } 221 222 static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, size_t ide_size, 223 int index) 224 { 225 gchar *name = g_strdup_printf("ide[%i]", index); 226 uint32_t addr = 0x1f000 + ((index + 1) * 0x1000); 227 228 macio_init_child_obj(s, name, ide, ide_size, TYPE_MACIO_IDE); 229 qdev_prop_set_uint32(DEVICE(ide), "addr", addr); 230 memory_region_add_subregion(&s->bar, addr, &ide->mem); 231 g_free(name); 232 } 233 234 static void macio_oldworld_init(Object *obj) 235 { 236 MacIOState *s = MACIO(obj); 237 OldWorldMacIOState *os = OLDWORLD_MACIO(obj); 238 DeviceState *dev; 239 int i; 240 241 object_property_add_link(obj, "pic", TYPE_HEATHROW, 242 (Object **) &os->pic, 243 qdev_prop_allow_set_link_before_realize, 244 0); 245 246 macio_init_child_obj(s, "cuda", &s->cuda, sizeof(s->cuda), TYPE_CUDA); 247 248 macio_init_child_obj(s, "nvram", &os->nvram, sizeof(os->nvram), 249 TYPE_MACIO_NVRAM); 250 dev = DEVICE(&os->nvram); 251 qdev_prop_set_uint32(dev, "size", 0x2000); 252 qdev_prop_set_uint32(dev, "it_shift", 4); 253 254 for (i = 0; i < 2; i++) { 255 macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i); 256 } 257 } 258 259 static void timer_write(void *opaque, hwaddr addr, uint64_t value, 260 unsigned size) 261 { 262 trace_macio_timer_write(addr, size, value); 263 } 264 265 static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size) 266 { 267 uint32_t value = 0; 268 uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 269 uint64_t kltime; 270 271 kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4); 272 kltime = muldiv64(kltime, 18432000, 1048575); 273 274 switch (addr) { 275 case 0x38: 276 value = kltime; 277 break; 278 case 0x3c: 279 value = kltime >> 32; 280 break; 281 } 282 283 trace_macio_timer_read(addr, size, value); 284 return value; 285 } 286 287 static const MemoryRegionOps timer_ops = { 288 .read = timer_read, 289 .write = timer_write, 290 .endianness = DEVICE_LITTLE_ENDIAN, 291 }; 292 293 static void macio_newworld_realize(PCIDevice *d, Error **errp) 294 { 295 MacIOState *s = MACIO(d); 296 NewWorldMacIOState *ns = NEWWORLD_MACIO(d); 297 DeviceState *pic_dev = DEVICE(ns->pic); 298 Error *err = NULL; 299 SysBusDevice *sysbus_dev; 300 MemoryRegion *timer_memory = NULL; 301 302 macio_common_realize(d, &err); 303 if (err) { 304 error_propagate(errp, err); 305 return; 306 } 307 308 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 309 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 310 NEWWORLD_ESCCB_IRQ)); 311 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 312 NEWWORLD_ESCCA_IRQ)); 313 314 /* OpenPIC */ 315 sysbus_dev = SYS_BUS_DEVICE(ns->pic); 316 memory_region_add_subregion(&s->bar, 0x40000, 317 sysbus_mmio_get_region(sysbus_dev, 0)); 318 319 /* IDE buses */ 320 macio_realize_ide(s, &ns->ide[0], 321 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ), 322 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ), 323 0x16, &err); 324 if (err) { 325 error_propagate(errp, err); 326 return; 327 } 328 329 macio_realize_ide(s, &ns->ide[1], 330 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ), 331 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ), 332 0x1a, &err); 333 if (err) { 334 error_propagate(errp, err); 335 return; 336 } 337 338 /* Timer */ 339 timer_memory = g_new(MemoryRegion, 1); 340 memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer", 341 0x1000); 342 memory_region_add_subregion(&s->bar, 0x15000, timer_memory); 343 344 if (ns->has_pmu) { 345 /* GPIOs */ 346 sysbus_dev = SYS_BUS_DEVICE(&ns->gpio); 347 object_property_set_link(OBJECT(&ns->gpio), OBJECT(pic_dev), "pic", 348 &error_abort); 349 memory_region_add_subregion(&s->bar, 0x50, 350 sysbus_mmio_get_region(sysbus_dev, 0)); 351 object_property_set_bool(OBJECT(&ns->gpio), true, "realized", &err); 352 353 /* PMU */ 354 object_initialize_child(OBJECT(s), "pmu", &s->pmu, sizeof(s->pmu), 355 TYPE_VIA_PMU, &error_abort, NULL); 356 object_property_set_link(OBJECT(&s->pmu), OBJECT(sysbus_dev), "gpio", 357 &error_abort); 358 qdev_prop_set_bit(DEVICE(&s->pmu), "has-adb", ns->has_adb); 359 qdev_set_parent_bus(DEVICE(&s->pmu), BUS(&s->macio_bus)); 360 361 object_property_set_bool(OBJECT(&s->pmu), true, "realized", &err); 362 if (err) { 363 error_propagate(errp, err); 364 return; 365 } 366 sysbus_dev = SYS_BUS_DEVICE(&s->pmu); 367 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 368 NEWWORLD_PMU_IRQ)); 369 memory_region_add_subregion(&s->bar, 0x16000, 370 sysbus_mmio_get_region(sysbus_dev, 0)); 371 } else { 372 object_unparent(OBJECT(&ns->gpio)); 373 374 /* CUDA */ 375 object_initialize_child(OBJECT(s), "cuda", &s->cuda, sizeof(s->cuda), 376 TYPE_CUDA, &error_abort, NULL); 377 qdev_set_parent_bus(DEVICE(&s->cuda), BUS(&s->macio_bus)); 378 qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency", 379 s->frequency); 380 381 object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err); 382 if (err) { 383 error_propagate(errp, err); 384 return; 385 } 386 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 387 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 388 NEWWORLD_CUDA_IRQ)); 389 memory_region_add_subregion(&s->bar, 0x16000, 390 sysbus_mmio_get_region(sysbus_dev, 0)); 391 } 392 } 393 394 static void macio_newworld_init(Object *obj) 395 { 396 MacIOState *s = MACIO(obj); 397 NewWorldMacIOState *ns = NEWWORLD_MACIO(obj); 398 int i; 399 400 object_property_add_link(obj, "pic", TYPE_OPENPIC, 401 (Object **) &ns->pic, 402 qdev_prop_allow_set_link_before_realize, 403 0); 404 405 macio_init_child_obj(s, "gpio", &ns->gpio, sizeof(ns->gpio), 406 TYPE_MACIO_GPIO); 407 408 for (i = 0; i < 2; i++) { 409 macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i); 410 } 411 } 412 413 static void macio_instance_init(Object *obj) 414 { 415 MacIOState *s = MACIO(obj); 416 417 memory_region_init(&s->bar, obj, "macio", 0x80000); 418 419 qbus_create_inplace(&s->macio_bus, sizeof(s->macio_bus), TYPE_MACIO_BUS, 420 DEVICE(obj), "macio.0"); 421 422 macio_init_child_obj(s, "dbdma", &s->dbdma, sizeof(s->dbdma), 423 TYPE_MAC_DBDMA); 424 425 macio_init_child_obj(s, "escc", &s->escc, sizeof(s->escc), TYPE_ESCC); 426 } 427 428 static const VMStateDescription vmstate_macio_oldworld = { 429 .name = "macio-oldworld", 430 .version_id = 0, 431 .minimum_version_id = 0, 432 .fields = (VMStateField[]) { 433 VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState), 434 VMSTATE_END_OF_LIST() 435 } 436 }; 437 438 static void macio_oldworld_class_init(ObjectClass *oc, void *data) 439 { 440 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 441 DeviceClass *dc = DEVICE_CLASS(oc); 442 443 pdc->realize = macio_oldworld_realize; 444 pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201; 445 dc->vmsd = &vmstate_macio_oldworld; 446 } 447 448 static const VMStateDescription vmstate_macio_newworld = { 449 .name = "macio-newworld", 450 .version_id = 0, 451 .minimum_version_id = 0, 452 .fields = (VMStateField[]) { 453 VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState), 454 VMSTATE_END_OF_LIST() 455 } 456 }; 457 458 static Property macio_newworld_properties[] = { 459 DEFINE_PROP_BOOL("has-pmu", NewWorldMacIOState, has_pmu, false), 460 DEFINE_PROP_BOOL("has-adb", NewWorldMacIOState, has_adb, false), 461 DEFINE_PROP_END_OF_LIST() 462 }; 463 464 static void macio_newworld_class_init(ObjectClass *oc, void *data) 465 { 466 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 467 DeviceClass *dc = DEVICE_CLASS(oc); 468 469 pdc->realize = macio_newworld_realize; 470 pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL; 471 dc->vmsd = &vmstate_macio_newworld; 472 device_class_set_props(dc, macio_newworld_properties); 473 } 474 475 static Property macio_properties[] = { 476 DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0), 477 DEFINE_PROP_END_OF_LIST() 478 }; 479 480 static void macio_class_init(ObjectClass *klass, void *data) 481 { 482 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 483 DeviceClass *dc = DEVICE_CLASS(klass); 484 485 k->vendor_id = PCI_VENDOR_ID_APPLE; 486 k->class_id = PCI_CLASS_OTHERS << 8; 487 device_class_set_props(dc, macio_properties); 488 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 489 /* Reason: Uses serial_hds in macio_instance_init */ 490 dc->user_creatable = false; 491 } 492 493 static const TypeInfo macio_bus_info = { 494 .name = TYPE_MACIO_BUS, 495 .parent = TYPE_SYSTEM_BUS, 496 .instance_size = sizeof(MacIOBusState), 497 }; 498 499 static const TypeInfo macio_oldworld_type_info = { 500 .name = TYPE_OLDWORLD_MACIO, 501 .parent = TYPE_MACIO, 502 .instance_size = sizeof(OldWorldMacIOState), 503 .instance_init = macio_oldworld_init, 504 .class_init = macio_oldworld_class_init, 505 }; 506 507 static const TypeInfo macio_newworld_type_info = { 508 .name = TYPE_NEWWORLD_MACIO, 509 .parent = TYPE_MACIO, 510 .instance_size = sizeof(NewWorldMacIOState), 511 .instance_init = macio_newworld_init, 512 .class_init = macio_newworld_class_init, 513 }; 514 515 static const TypeInfo macio_type_info = { 516 .name = TYPE_MACIO, 517 .parent = TYPE_PCI_DEVICE, 518 .instance_size = sizeof(MacIOState), 519 .instance_init = macio_instance_init, 520 .abstract = true, 521 .class_init = macio_class_init, 522 .interfaces = (InterfaceInfo[]) { 523 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 524 { }, 525 }, 526 }; 527 528 static void macio_register_types(void) 529 { 530 type_register_static(&macio_bus_info); 531 type_register_static(&macio_type_info); 532 type_register_static(&macio_oldworld_type_info); 533 type_register_static(&macio_newworld_type_info); 534 } 535 536 type_init(macio_register_types) 537