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_common_realize(PCIDevice *d, Error **errp) 98 { 99 MacIOState *s = MACIO(d); 100 SysBusDevice *sysbus_dev; 101 Error *err = NULL; 102 103 if (!qdev_realize(DEVICE(&s->dbdma), BUS(&s->macio_bus), &err)) { 104 error_propagate(errp, err); 105 return; 106 } 107 sysbus_dev = SYS_BUS_DEVICE(&s->dbdma); 108 memory_region_add_subregion(&s->bar, 0x08000, 109 sysbus_mmio_get_region(sysbus_dev, 0)); 110 111 qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0); 112 qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK); 113 qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4); 114 qdev_prop_set_chr(DEVICE(&s->escc), "chrA", serial_hd(0)); 115 qdev_prop_set_chr(DEVICE(&s->escc), "chrB", serial_hd(1)); 116 qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial); 117 qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial); 118 if (!qdev_realize(DEVICE(&s->escc), BUS(&s->macio_bus), &err)) { 119 error_propagate(errp, err); 120 return; 121 } 122 123 macio_bar_setup(s); 124 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar); 125 } 126 127 static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide, 128 qemu_irq irq0, qemu_irq irq1, int dmaid, 129 Error **errp) 130 { 131 SysBusDevice *sysbus_dev; 132 133 sysbus_dev = SYS_BUS_DEVICE(ide); 134 sysbus_connect_irq(sysbus_dev, 0, irq0); 135 sysbus_connect_irq(sysbus_dev, 1, irq1); 136 qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid); 137 object_property_set_link(OBJECT(ide), OBJECT(&s->dbdma), "dbdma", 138 &error_abort); 139 macio_ide_register_dma(ide); 140 141 qdev_realize(DEVICE(ide), BUS(&s->macio_bus), errp); 142 } 143 144 static void macio_oldworld_realize(PCIDevice *d, Error **errp) 145 { 146 MacIOState *s = MACIO(d); 147 OldWorldMacIOState *os = OLDWORLD_MACIO(d); 148 DeviceState *pic_dev = DEVICE(os->pic); 149 Error *err = NULL; 150 SysBusDevice *sysbus_dev; 151 152 macio_common_realize(d, &err); 153 if (err) { 154 error_propagate(errp, err); 155 return; 156 } 157 158 qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency", 159 s->frequency); 160 if (!qdev_realize(DEVICE(&s->cuda), BUS(&s->macio_bus), &err)) { 161 error_propagate(errp, err); 162 return; 163 } 164 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 165 memory_region_add_subregion(&s->bar, 0x16000, 166 sysbus_mmio_get_region(sysbus_dev, 0)); 167 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 168 OLDWORLD_CUDA_IRQ)); 169 170 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 171 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 172 OLDWORLD_ESCCB_IRQ)); 173 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 174 OLDWORLD_ESCCA_IRQ)); 175 176 if (!qdev_realize(DEVICE(&os->nvram), BUS(&s->macio_bus), &err)) { 177 error_propagate(errp, err); 178 return; 179 } 180 sysbus_dev = SYS_BUS_DEVICE(&os->nvram); 181 memory_region_add_subregion(&s->bar, 0x60000, 182 sysbus_mmio_get_region(sysbus_dev, 0)); 183 pmac_format_nvram_partition(&os->nvram, os->nvram.size); 184 185 /* Heathrow PIC */ 186 sysbus_dev = SYS_BUS_DEVICE(os->pic); 187 memory_region_add_subregion(&s->bar, 0x0, 188 sysbus_mmio_get_region(sysbus_dev, 0)); 189 190 /* IDE buses */ 191 macio_realize_ide(s, &os->ide[0], 192 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_IRQ), 193 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_DMA_IRQ), 194 0x16, &err); 195 if (err) { 196 error_propagate(errp, err); 197 return; 198 } 199 200 macio_realize_ide(s, &os->ide[1], 201 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_IRQ), 202 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_DMA_IRQ), 203 0x1a, &err); 204 if (err) { 205 error_propagate(errp, err); 206 return; 207 } 208 } 209 210 static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, int index) 211 { 212 gchar *name = g_strdup_printf("ide[%i]", index); 213 uint32_t addr = 0x1f000 + ((index + 1) * 0x1000); 214 215 object_initialize_child(OBJECT(s), name, ide, TYPE_MACIO_IDE); 216 qdev_prop_set_uint32(DEVICE(ide), "addr", addr); 217 memory_region_add_subregion(&s->bar, addr, &ide->mem); 218 g_free(name); 219 } 220 221 static void macio_oldworld_init(Object *obj) 222 { 223 MacIOState *s = MACIO(obj); 224 OldWorldMacIOState *os = OLDWORLD_MACIO(obj); 225 DeviceState *dev; 226 int i; 227 228 object_property_add_link(obj, "pic", TYPE_HEATHROW, 229 (Object **) &os->pic, 230 qdev_prop_allow_set_link_before_realize, 231 0); 232 233 object_initialize_child(OBJECT(s), "cuda", &s->cuda, TYPE_CUDA); 234 235 object_initialize_child(OBJECT(s), "nvram", &os->nvram, TYPE_MACIO_NVRAM); 236 dev = DEVICE(&os->nvram); 237 qdev_prop_set_uint32(dev, "size", 0x2000); 238 qdev_prop_set_uint32(dev, "it_shift", 4); 239 240 for (i = 0; i < 2; i++) { 241 macio_init_ide(s, &os->ide[i], i); 242 } 243 } 244 245 static void timer_write(void *opaque, hwaddr addr, uint64_t value, 246 unsigned size) 247 { 248 trace_macio_timer_write(addr, size, value); 249 } 250 251 static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size) 252 { 253 uint32_t value = 0; 254 uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 255 uint64_t kltime; 256 257 kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4); 258 kltime = muldiv64(kltime, 18432000, 1048575); 259 260 switch (addr) { 261 case 0x38: 262 value = kltime; 263 break; 264 case 0x3c: 265 value = kltime >> 32; 266 break; 267 } 268 269 trace_macio_timer_read(addr, size, value); 270 return value; 271 } 272 273 static const MemoryRegionOps timer_ops = { 274 .read = timer_read, 275 .write = timer_write, 276 .endianness = DEVICE_LITTLE_ENDIAN, 277 }; 278 279 static void macio_newworld_realize(PCIDevice *d, Error **errp) 280 { 281 MacIOState *s = MACIO(d); 282 NewWorldMacIOState *ns = NEWWORLD_MACIO(d); 283 DeviceState *pic_dev = DEVICE(ns->pic); 284 Error *err = NULL; 285 SysBusDevice *sysbus_dev; 286 MemoryRegion *timer_memory = NULL; 287 288 macio_common_realize(d, &err); 289 if (err) { 290 error_propagate(errp, err); 291 return; 292 } 293 294 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 295 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 296 NEWWORLD_ESCCB_IRQ)); 297 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 298 NEWWORLD_ESCCA_IRQ)); 299 300 /* OpenPIC */ 301 sysbus_dev = SYS_BUS_DEVICE(ns->pic); 302 memory_region_add_subregion(&s->bar, 0x40000, 303 sysbus_mmio_get_region(sysbus_dev, 0)); 304 305 /* IDE buses */ 306 macio_realize_ide(s, &ns->ide[0], 307 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ), 308 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ), 309 0x16, &err); 310 if (err) { 311 error_propagate(errp, err); 312 return; 313 } 314 315 macio_realize_ide(s, &ns->ide[1], 316 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ), 317 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ), 318 0x1a, &err); 319 if (err) { 320 error_propagate(errp, err); 321 return; 322 } 323 324 /* Timer */ 325 timer_memory = g_new(MemoryRegion, 1); 326 memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer", 327 0x1000); 328 memory_region_add_subregion(&s->bar, 0x15000, timer_memory); 329 330 if (ns->has_pmu) { 331 /* GPIOs */ 332 sysbus_dev = SYS_BUS_DEVICE(&ns->gpio); 333 object_property_set_link(OBJECT(&ns->gpio), OBJECT(pic_dev), "pic", 334 &error_abort); 335 memory_region_add_subregion(&s->bar, 0x50, 336 sysbus_mmio_get_region(sysbus_dev, 0)); 337 if (!qdev_realize(DEVICE(&ns->gpio), BUS(&s->macio_bus), errp)) { 338 return; 339 } 340 341 /* PMU */ 342 object_initialize_child(OBJECT(s), "pmu", &s->pmu, TYPE_VIA_PMU); 343 object_property_set_link(OBJECT(&s->pmu), OBJECT(sysbus_dev), "gpio", 344 &error_abort); 345 qdev_prop_set_bit(DEVICE(&s->pmu), "has-adb", ns->has_adb); 346 if (!qdev_realize(DEVICE(&s->pmu), BUS(&s->macio_bus), &err)) { 347 error_propagate(errp, err); 348 return; 349 } 350 sysbus_dev = SYS_BUS_DEVICE(&s->pmu); 351 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 352 NEWWORLD_PMU_IRQ)); 353 memory_region_add_subregion(&s->bar, 0x16000, 354 sysbus_mmio_get_region(sysbus_dev, 0)); 355 } else { 356 object_unparent(OBJECT(&ns->gpio)); 357 358 /* CUDA */ 359 object_initialize_child(OBJECT(s), "cuda", &s->cuda, TYPE_CUDA); 360 qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency", 361 s->frequency); 362 363 if (!qdev_realize(DEVICE(&s->cuda), BUS(&s->macio_bus), &err)) { 364 error_propagate(errp, err); 365 return; 366 } 367 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 368 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 369 NEWWORLD_CUDA_IRQ)); 370 memory_region_add_subregion(&s->bar, 0x16000, 371 sysbus_mmio_get_region(sysbus_dev, 0)); 372 } 373 } 374 375 static void macio_newworld_init(Object *obj) 376 { 377 MacIOState *s = MACIO(obj); 378 NewWorldMacIOState *ns = NEWWORLD_MACIO(obj); 379 int i; 380 381 object_property_add_link(obj, "pic", TYPE_OPENPIC, 382 (Object **) &ns->pic, 383 qdev_prop_allow_set_link_before_realize, 384 0); 385 386 object_initialize_child(OBJECT(s), "gpio", &ns->gpio, TYPE_MACIO_GPIO); 387 388 for (i = 0; i < 2; i++) { 389 macio_init_ide(s, &ns->ide[i], i); 390 } 391 } 392 393 static void macio_instance_init(Object *obj) 394 { 395 MacIOState *s = MACIO(obj); 396 397 memory_region_init(&s->bar, obj, "macio", 0x80000); 398 399 qbus_create_inplace(&s->macio_bus, sizeof(s->macio_bus), TYPE_MACIO_BUS, 400 DEVICE(obj), "macio.0"); 401 402 object_initialize_child(OBJECT(s), "dbdma", &s->dbdma, TYPE_MAC_DBDMA); 403 404 object_initialize_child(OBJECT(s), "escc", &s->escc, TYPE_ESCC); 405 } 406 407 static const VMStateDescription vmstate_macio_oldworld = { 408 .name = "macio-oldworld", 409 .version_id = 0, 410 .minimum_version_id = 0, 411 .fields = (VMStateField[]) { 412 VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState), 413 VMSTATE_END_OF_LIST() 414 } 415 }; 416 417 static void macio_oldworld_class_init(ObjectClass *oc, void *data) 418 { 419 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 420 DeviceClass *dc = DEVICE_CLASS(oc); 421 422 pdc->realize = macio_oldworld_realize; 423 pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201; 424 dc->vmsd = &vmstate_macio_oldworld; 425 } 426 427 static const VMStateDescription vmstate_macio_newworld = { 428 .name = "macio-newworld", 429 .version_id = 0, 430 .minimum_version_id = 0, 431 .fields = (VMStateField[]) { 432 VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState), 433 VMSTATE_END_OF_LIST() 434 } 435 }; 436 437 static Property macio_newworld_properties[] = { 438 DEFINE_PROP_BOOL("has-pmu", NewWorldMacIOState, has_pmu, false), 439 DEFINE_PROP_BOOL("has-adb", NewWorldMacIOState, has_adb, false), 440 DEFINE_PROP_END_OF_LIST() 441 }; 442 443 static void macio_newworld_class_init(ObjectClass *oc, void *data) 444 { 445 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 446 DeviceClass *dc = DEVICE_CLASS(oc); 447 448 pdc->realize = macio_newworld_realize; 449 pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL; 450 dc->vmsd = &vmstate_macio_newworld; 451 device_class_set_props(dc, macio_newworld_properties); 452 } 453 454 static Property macio_properties[] = { 455 DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0), 456 DEFINE_PROP_END_OF_LIST() 457 }; 458 459 static void macio_class_init(ObjectClass *klass, void *data) 460 { 461 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 462 DeviceClass *dc = DEVICE_CLASS(klass); 463 464 k->vendor_id = PCI_VENDOR_ID_APPLE; 465 k->class_id = PCI_CLASS_OTHERS << 8; 466 device_class_set_props(dc, macio_properties); 467 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 468 /* Reason: Uses serial_hds in macio_instance_init */ 469 dc->user_creatable = false; 470 } 471 472 static const TypeInfo macio_bus_info = { 473 .name = TYPE_MACIO_BUS, 474 .parent = TYPE_SYSTEM_BUS, 475 .instance_size = sizeof(MacIOBusState), 476 }; 477 478 static const TypeInfo macio_oldworld_type_info = { 479 .name = TYPE_OLDWORLD_MACIO, 480 .parent = TYPE_MACIO, 481 .instance_size = sizeof(OldWorldMacIOState), 482 .instance_init = macio_oldworld_init, 483 .class_init = macio_oldworld_class_init, 484 }; 485 486 static const TypeInfo macio_newworld_type_info = { 487 .name = TYPE_NEWWORLD_MACIO, 488 .parent = TYPE_MACIO, 489 .instance_size = sizeof(NewWorldMacIOState), 490 .instance_init = macio_newworld_init, 491 .class_init = macio_newworld_class_init, 492 }; 493 494 static const TypeInfo macio_type_info = { 495 .name = TYPE_MACIO, 496 .parent = TYPE_PCI_DEVICE, 497 .instance_size = sizeof(MacIOState), 498 .instance_init = macio_instance_init, 499 .abstract = true, 500 .class_init = macio_class_init, 501 .interfaces = (InterfaceInfo[]) { 502 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 503 { }, 504 }, 505 }; 506 507 static void macio_register_types(void) 508 { 509 type_register_static(&macio_bus_info); 510 type_register_static(&macio_type_info); 511 type_register_static(&macio_oldworld_type_info); 512 type_register_static(&macio_newworld_type_info); 513 } 514 515 type_init(macio_register_types) 516