macio.c (17050B)
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/misc/macio/cuda.h" 30 #include "hw/pci/pci.h" 31 #include "hw/ppc/mac_dbdma.h" 32 #include "hw/qdev-properties.h" 33 #include "migration/vmstate.h" 34 #include "hw/char/escc.h" 35 #include "hw/misc/macio/macio.h" 36 #include "hw/intc/heathrow_pic.h" 37 #include "trace.h" 38 39 #define ESCC_CLOCK 3686400 40 41 /* Note: this code is strongly inspired by the corresponding code in PearPC */ 42 43 /* 44 * The mac-io has two interfaces to the ESCC. One is called "escc-legacy", 45 * while the other one is the normal, current ESCC interface. 46 * 47 * The magic below creates memory aliases to spawn the escc-legacy device 48 * purely by rerouting the respective registers to our escc region. This 49 * works because the only difference between the two memory regions is the 50 * register layout, not their semantics. 51 * 52 * Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf 53 */ 54 static void macio_escc_legacy_setup(MacIOState *s) 55 { 56 ESCCState *escc = ESCC(&s->escc); 57 SysBusDevice *sbd = SYS_BUS_DEVICE(escc); 58 MemoryRegion *escc_legacy = g_new(MemoryRegion, 1); 59 MemoryRegion *bar = &s->bar; 60 int i; 61 static const int maps[] = { 62 0x00, 0x00, /* Command B */ 63 0x02, 0x20, /* Command A */ 64 0x04, 0x10, /* Data B */ 65 0x06, 0x30, /* Data A */ 66 0x08, 0x40, /* Enhancement B */ 67 0x0A, 0x50, /* Enhancement A */ 68 0x80, 0x80, /* Recovery count */ 69 0x90, 0x90, /* Start A */ 70 0xa0, 0xa0, /* Start B */ 71 0xb0, 0xb0, /* Detect AB */ 72 }; 73 74 memory_region_init(escc_legacy, OBJECT(s), "escc-legacy", 256); 75 for (i = 0; i < ARRAY_SIZE(maps); i += 2) { 76 MemoryRegion *port = g_new(MemoryRegion, 1); 77 memory_region_init_alias(port, OBJECT(s), "escc-legacy-port", 78 sysbus_mmio_get_region(sbd, 0), 79 maps[i + 1], 0x2); 80 memory_region_add_subregion(escc_legacy, maps[i], port); 81 } 82 83 memory_region_add_subregion(bar, 0x12000, escc_legacy); 84 } 85 86 static void macio_bar_setup(MacIOState *s) 87 { 88 ESCCState *escc = ESCC(&s->escc); 89 SysBusDevice *sbd = SYS_BUS_DEVICE(escc); 90 MemoryRegion *bar = &s->bar; 91 92 memory_region_add_subregion(bar, 0x13000, sysbus_mmio_get_region(sbd, 0)); 93 macio_escc_legacy_setup(s); 94 } 95 96 static void macio_common_realize(PCIDevice *d, Error **errp) 97 { 98 MacIOState *s = MACIO(d); 99 SysBusDevice *sysbus_dev; 100 101 if (!qdev_realize(DEVICE(&s->dbdma), BUS(&s->macio_bus), errp)) { 102 return; 103 } 104 sysbus_dev = SYS_BUS_DEVICE(&s->dbdma); 105 memory_region_add_subregion(&s->bar, 0x08000, 106 sysbus_mmio_get_region(sysbus_dev, 0)); 107 108 qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0); 109 qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK); 110 qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4); 111 qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial); 112 qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial); 113 if (!qdev_realize(DEVICE(&s->escc), BUS(&s->macio_bus), errp)) { 114 return; 115 } 116 117 macio_bar_setup(s); 118 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar); 119 } 120 121 static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide, 122 qemu_irq irq0, qemu_irq irq1, int dmaid, 123 Error **errp) 124 { 125 SysBusDevice *sysbus_dev; 126 127 sysbus_dev = SYS_BUS_DEVICE(ide); 128 sysbus_connect_irq(sysbus_dev, 0, irq0); 129 sysbus_connect_irq(sysbus_dev, 1, irq1); 130 qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid); 131 object_property_set_link(OBJECT(ide), "dbdma", OBJECT(&s->dbdma), 132 &error_abort); 133 macio_ide_register_dma(ide); 134 135 qdev_realize(DEVICE(ide), BUS(&s->macio_bus), errp); 136 } 137 138 static void macio_oldworld_realize(PCIDevice *d, Error **errp) 139 { 140 MacIOState *s = MACIO(d); 141 OldWorldMacIOState *os = OLDWORLD_MACIO(d); 142 DeviceState *pic_dev = DEVICE(&os->pic); 143 Error *err = NULL; 144 SysBusDevice *sysbus_dev; 145 146 macio_common_realize(d, &err); 147 if (err) { 148 error_propagate(errp, err); 149 return; 150 } 151 152 /* Heathrow PIC */ 153 if (!qdev_realize(DEVICE(&os->pic), BUS(&s->macio_bus), errp)) { 154 return; 155 } 156 sysbus_dev = SYS_BUS_DEVICE(&os->pic); 157 memory_region_add_subregion(&s->bar, 0x0, 158 sysbus_mmio_get_region(sysbus_dev, 0)); 159 160 qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency", 161 s->frequency); 162 if (!qdev_realize(DEVICE(&s->cuda), BUS(&s->macio_bus), errp)) { 163 return; 164 } 165 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 166 memory_region_add_subregion(&s->bar, 0x16000, 167 sysbus_mmio_get_region(sysbus_dev, 0)); 168 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 169 OLDWORLD_CUDA_IRQ)); 170 171 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 172 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 173 OLDWORLD_ESCCB_IRQ)); 174 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 175 OLDWORLD_ESCCA_IRQ)); 176 177 if (!qdev_realize(DEVICE(&os->nvram), BUS(&s->macio_bus), errp)) { 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 /* IDE buses */ 186 macio_realize_ide(s, &os->ide[0], 187 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_IRQ), 188 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_DMA_IRQ), 189 0x16, &err); 190 if (err) { 191 error_propagate(errp, err); 192 return; 193 } 194 195 macio_realize_ide(s, &os->ide[1], 196 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_IRQ), 197 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_DMA_IRQ), 198 0x1a, &err); 199 if (err) { 200 error_propagate(errp, err); 201 return; 202 } 203 } 204 205 static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, int index) 206 { 207 gchar *name = g_strdup_printf("ide[%i]", index); 208 uint32_t addr = 0x1f000 + ((index + 1) * 0x1000); 209 210 object_initialize_child(OBJECT(s), name, ide, TYPE_MACIO_IDE); 211 qdev_prop_set_uint32(DEVICE(ide), "addr", addr); 212 memory_region_add_subregion(&s->bar, addr, &ide->mem); 213 g_free(name); 214 } 215 216 static void macio_oldworld_init(Object *obj) 217 { 218 MacIOState *s = MACIO(obj); 219 OldWorldMacIOState *os = OLDWORLD_MACIO(obj); 220 DeviceState *dev; 221 int i; 222 223 object_initialize_child(OBJECT(s), "pic", &os->pic, TYPE_HEATHROW); 224 225 object_initialize_child(OBJECT(s), "cuda", &s->cuda, TYPE_CUDA); 226 227 object_initialize_child(OBJECT(s), "nvram", &os->nvram, TYPE_MACIO_NVRAM); 228 dev = DEVICE(&os->nvram); 229 qdev_prop_set_uint32(dev, "size", MACIO_NVRAM_SIZE); 230 qdev_prop_set_uint32(dev, "it_shift", 4); 231 232 for (i = 0; i < 2; i++) { 233 macio_init_ide(s, &os->ide[i], i); 234 } 235 } 236 237 static void timer_write(void *opaque, hwaddr addr, uint64_t value, 238 unsigned size) 239 { 240 trace_macio_timer_write(addr, size, value); 241 } 242 243 static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size) 244 { 245 uint32_t value = 0; 246 uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 247 uint64_t kltime; 248 249 kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4); 250 kltime = muldiv64(kltime, 18432000, 1048575); 251 252 switch (addr) { 253 case 0x38: 254 value = kltime; 255 break; 256 case 0x3c: 257 value = kltime >> 32; 258 break; 259 } 260 261 trace_macio_timer_read(addr, size, value); 262 return value; 263 } 264 265 static const MemoryRegionOps timer_ops = { 266 .read = timer_read, 267 .write = timer_write, 268 .endianness = DEVICE_LITTLE_ENDIAN, 269 }; 270 271 static void macio_newworld_realize(PCIDevice *d, Error **errp) 272 { 273 MacIOState *s = MACIO(d); 274 NewWorldMacIOState *ns = NEWWORLD_MACIO(d); 275 DeviceState *pic_dev = DEVICE(&ns->pic); 276 Error *err = NULL; 277 SysBusDevice *sysbus_dev; 278 MemoryRegion *timer_memory = NULL; 279 280 macio_common_realize(d, &err); 281 if (err) { 282 error_propagate(errp, err); 283 return; 284 } 285 286 /* OpenPIC */ 287 qdev_prop_set_uint32(pic_dev, "model", OPENPIC_MODEL_KEYLARGO); 288 sysbus_dev = SYS_BUS_DEVICE(&ns->pic); 289 sysbus_realize_and_unref(sysbus_dev, &error_fatal); 290 memory_region_add_subregion(&s->bar, 0x40000, 291 sysbus_mmio_get_region(sysbus_dev, 0)); 292 293 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 294 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 295 NEWWORLD_ESCCB_IRQ)); 296 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 297 NEWWORLD_ESCCA_IRQ)); 298 299 /* IDE buses */ 300 macio_realize_ide(s, &ns->ide[0], 301 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ), 302 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ), 303 0x16, &err); 304 if (err) { 305 error_propagate(errp, err); 306 return; 307 } 308 309 macio_realize_ide(s, &ns->ide[1], 310 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ), 311 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ), 312 0x1a, &err); 313 if (err) { 314 error_propagate(errp, err); 315 return; 316 } 317 318 /* Timer */ 319 timer_memory = g_new(MemoryRegion, 1); 320 memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer", 321 0x1000); 322 memory_region_add_subregion(&s->bar, 0x15000, timer_memory); 323 324 if (ns->has_pmu) { 325 /* GPIOs */ 326 if (!qdev_realize(DEVICE(&ns->gpio), BUS(&s->macio_bus), errp)) { 327 return; 328 } 329 sysbus_dev = SYS_BUS_DEVICE(&ns->gpio); 330 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 331 NEWWORLD_EXTING_GPIO1)); 332 sysbus_connect_irq(sysbus_dev, 9, qdev_get_gpio_in(pic_dev, 333 NEWWORLD_EXTING_GPIO9)); 334 memory_region_add_subregion(&s->bar, 0x50, 335 sysbus_mmio_get_region(sysbus_dev, 0)); 336 337 /* PMU */ 338 object_initialize_child(OBJECT(s), "pmu", &s->pmu, TYPE_VIA_PMU); 339 object_property_set_link(OBJECT(&s->pmu), "gpio", OBJECT(sysbus_dev), 340 &error_abort); 341 qdev_prop_set_bit(DEVICE(&s->pmu), "has-adb", ns->has_adb); 342 if (!qdev_realize(DEVICE(&s->pmu), BUS(&s->macio_bus), errp)) { 343 return; 344 } 345 sysbus_dev = SYS_BUS_DEVICE(&s->pmu); 346 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 347 NEWWORLD_PMU_IRQ)); 348 memory_region_add_subregion(&s->bar, 0x16000, 349 sysbus_mmio_get_region(sysbus_dev, 0)); 350 } else { 351 object_unparent(OBJECT(&ns->gpio)); 352 353 /* CUDA */ 354 object_initialize_child(OBJECT(s), "cuda", &s->cuda, TYPE_CUDA); 355 qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency", 356 s->frequency); 357 358 if (!qdev_realize(DEVICE(&s->cuda), BUS(&s->macio_bus), errp)) { 359 return; 360 } 361 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 362 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 363 NEWWORLD_CUDA_IRQ)); 364 memory_region_add_subregion(&s->bar, 0x16000, 365 sysbus_mmio_get_region(sysbus_dev, 0)); 366 } 367 } 368 369 static void macio_newworld_init(Object *obj) 370 { 371 MacIOState *s = MACIO(obj); 372 NewWorldMacIOState *ns = NEWWORLD_MACIO(obj); 373 int i; 374 375 object_initialize_child(OBJECT(s), "pic", &ns->pic, TYPE_OPENPIC); 376 377 object_initialize_child(OBJECT(s), "gpio", &ns->gpio, TYPE_MACIO_GPIO); 378 379 for (i = 0; i < 2; i++) { 380 macio_init_ide(s, &ns->ide[i], i); 381 } 382 } 383 384 static void macio_instance_init(Object *obj) 385 { 386 MacIOState *s = MACIO(obj); 387 388 memory_region_init(&s->bar, obj, "macio", 0x80000); 389 390 qbus_init(&s->macio_bus, sizeof(s->macio_bus), TYPE_MACIO_BUS, 391 DEVICE(obj), "macio.0"); 392 393 object_initialize_child(OBJECT(s), "dbdma", &s->dbdma, TYPE_MAC_DBDMA); 394 395 object_initialize_child(OBJECT(s), "escc", &s->escc, TYPE_ESCC); 396 } 397 398 static const VMStateDescription vmstate_macio_oldworld = { 399 .name = "macio-oldworld", 400 .version_id = 0, 401 .minimum_version_id = 0, 402 .fields = (VMStateField[]) { 403 VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState), 404 VMSTATE_END_OF_LIST() 405 } 406 }; 407 408 static void macio_oldworld_class_init(ObjectClass *oc, void *data) 409 { 410 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 411 DeviceClass *dc = DEVICE_CLASS(oc); 412 413 pdc->realize = macio_oldworld_realize; 414 pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201; 415 dc->vmsd = &vmstate_macio_oldworld; 416 } 417 418 static const VMStateDescription vmstate_macio_newworld = { 419 .name = "macio-newworld", 420 .version_id = 0, 421 .minimum_version_id = 0, 422 .fields = (VMStateField[]) { 423 VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState), 424 VMSTATE_END_OF_LIST() 425 } 426 }; 427 428 static Property macio_newworld_properties[] = { 429 DEFINE_PROP_BOOL("has-pmu", NewWorldMacIOState, has_pmu, false), 430 DEFINE_PROP_BOOL("has-adb", NewWorldMacIOState, has_adb, false), 431 DEFINE_PROP_END_OF_LIST() 432 }; 433 434 static void macio_newworld_class_init(ObjectClass *oc, void *data) 435 { 436 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 437 DeviceClass *dc = DEVICE_CLASS(oc); 438 439 pdc->realize = macio_newworld_realize; 440 pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL; 441 dc->vmsd = &vmstate_macio_newworld; 442 device_class_set_props(dc, macio_newworld_properties); 443 } 444 445 static Property macio_properties[] = { 446 DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0), 447 DEFINE_PROP_END_OF_LIST() 448 }; 449 450 static void macio_class_init(ObjectClass *klass, void *data) 451 { 452 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 453 DeviceClass *dc = DEVICE_CLASS(klass); 454 455 k->vendor_id = PCI_VENDOR_ID_APPLE; 456 k->class_id = PCI_CLASS_OTHERS << 8; 457 device_class_set_props(dc, macio_properties); 458 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 459 } 460 461 static const TypeInfo macio_bus_info = { 462 .name = TYPE_MACIO_BUS, 463 .parent = TYPE_SYSTEM_BUS, 464 .instance_size = sizeof(MacIOBusState), 465 }; 466 467 static const TypeInfo macio_oldworld_type_info = { 468 .name = TYPE_OLDWORLD_MACIO, 469 .parent = TYPE_MACIO, 470 .instance_size = sizeof(OldWorldMacIOState), 471 .instance_init = macio_oldworld_init, 472 .class_init = macio_oldworld_class_init, 473 }; 474 475 static const TypeInfo macio_newworld_type_info = { 476 .name = TYPE_NEWWORLD_MACIO, 477 .parent = TYPE_MACIO, 478 .instance_size = sizeof(NewWorldMacIOState), 479 .instance_init = macio_newworld_init, 480 .class_init = macio_newworld_class_init, 481 }; 482 483 static const TypeInfo macio_type_info = { 484 .name = TYPE_MACIO, 485 .parent = TYPE_PCI_DEVICE, 486 .instance_size = sizeof(MacIOState), 487 .instance_init = macio_instance_init, 488 .abstract = true, 489 .class_init = macio_class_init, 490 .interfaces = (InterfaceInfo[]) { 491 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 492 { }, 493 }, 494 }; 495 496 static void macio_register_types(void) 497 { 498 type_register_static(&macio_bus_info); 499 type_register_static(&macio_type_info); 500 type_register_static(&macio_oldworld_type_info); 501 type_register_static(&macio_newworld_type_info); 502 } 503 504 type_init(macio_register_types)