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 #include "qemu/osdep.h" 26 #include "qapi/error.h" 27 #include "hw/hw.h" 28 #include "hw/ppc/mac.h" 29 #include "hw/misc/macio/cuda.h" 30 #include "hw/pci/pci.h" 31 #include "hw/ppc/mac_dbdma.h" 32 #include "hw/char/escc.h" 33 #include "hw/misc/macio/macio.h" 34 #include "hw/intc/heathrow_pic.h" 35 #include "trace.h" 36 37 /* Note: this code is strongly inspirated from the corresponding code 38 * in PearPC */ 39 40 /* 41 * The mac-io has two interfaces to the ESCC. One is called "escc-legacy", 42 * while the other one is the normal, current ESCC interface. 43 * 44 * The magic below creates memory aliases to spawn the escc-legacy device 45 * purely by rerouting the respective registers to our escc region. This 46 * works because the only difference between the two memory regions is the 47 * register layout, not their semantics. 48 * 49 * Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf 50 */ 51 static void macio_escc_legacy_setup(MacIOState *s) 52 { 53 ESCCState *escc = ESCC(&s->escc); 54 SysBusDevice *sbd = SYS_BUS_DEVICE(escc); 55 MemoryRegion *escc_legacy = g_new(MemoryRegion, 1); 56 MemoryRegion *bar = &s->bar; 57 int i; 58 static const int maps[] = { 59 0x00, 0x00, /* Command B */ 60 0x02, 0x20, /* Command A */ 61 0x04, 0x10, /* Data B */ 62 0x06, 0x30, /* Data A */ 63 0x08, 0x40, /* Enhancement B */ 64 0x0A, 0x50, /* Enhancement A */ 65 0x80, 0x80, /* Recovery count */ 66 0x90, 0x90, /* Start A */ 67 0xa0, 0xa0, /* Start B */ 68 0xb0, 0xb0, /* Detect AB */ 69 }; 70 71 memory_region_init(escc_legacy, OBJECT(s), "escc-legacy", 256); 72 for (i = 0; i < ARRAY_SIZE(maps); i += 2) { 73 MemoryRegion *port = g_new(MemoryRegion, 1); 74 memory_region_init_alias(port, OBJECT(s), "escc-legacy-port", 75 sysbus_mmio_get_region(sbd, 0), 76 maps[i + 1], 0x2); 77 memory_region_add_subregion(escc_legacy, maps[i], port); 78 } 79 80 memory_region_add_subregion(bar, 0x12000, escc_legacy); 81 } 82 83 static void macio_bar_setup(MacIOState *s) 84 { 85 ESCCState *escc = ESCC(&s->escc); 86 SysBusDevice *sbd = SYS_BUS_DEVICE(escc); 87 MemoryRegion *bar = &s->bar; 88 89 memory_region_add_subregion(bar, 0x13000, sysbus_mmio_get_region(sbd, 0)); 90 macio_escc_legacy_setup(s); 91 } 92 93 static void macio_common_realize(PCIDevice *d, Error **errp) 94 { 95 MacIOState *s = MACIO(d); 96 SysBusDevice *sysbus_dev; 97 Error *err = NULL; 98 99 object_property_set_bool(OBJECT(&s->dbdma), true, "realized", &err); 100 if (err) { 101 error_propagate(errp, err); 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_uint64(DEVICE(&s->cuda), "timebase-frequency", 109 s->frequency); 110 object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err); 111 if (err) { 112 error_propagate(errp, err); 113 return; 114 } 115 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 116 memory_region_add_subregion(&s->bar, 0x16000, 117 sysbus_mmio_get_region(sysbus_dev, 0)); 118 119 qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0); 120 qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK); 121 qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4); 122 qdev_prop_set_chr(DEVICE(&s->escc), "chrA", serial_hd(0)); 123 qdev_prop_set_chr(DEVICE(&s->escc), "chrB", serial_hd(1)); 124 qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial); 125 qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial); 126 object_property_set_bool(OBJECT(&s->escc), true, "realized", &err); 127 if (err) { 128 error_propagate(errp, err); 129 return; 130 } 131 132 macio_bar_setup(s); 133 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar); 134 } 135 136 static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide, 137 qemu_irq irq0, qemu_irq irq1, int dmaid, 138 Error **errp) 139 { 140 SysBusDevice *sysbus_dev; 141 142 sysbus_dev = SYS_BUS_DEVICE(ide); 143 sysbus_connect_irq(sysbus_dev, 0, irq0); 144 sysbus_connect_irq(sysbus_dev, 1, irq1); 145 qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid); 146 object_property_set_link(OBJECT(ide), OBJECT(&s->dbdma), "dbdma", errp); 147 macio_ide_register_dma(ide); 148 149 object_property_set_bool(OBJECT(ide), true, "realized", errp); 150 } 151 152 static void macio_oldworld_realize(PCIDevice *d, Error **errp) 153 { 154 MacIOState *s = MACIO(d); 155 OldWorldMacIOState *os = OLDWORLD_MACIO(d); 156 DeviceState *pic_dev = DEVICE(os->pic); 157 Error *err = NULL; 158 SysBusDevice *sysbus_dev; 159 160 macio_common_realize(d, &err); 161 if (err) { 162 error_propagate(errp, err); 163 return; 164 } 165 166 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 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 object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err); 177 if (err) { 178 error_propagate(errp, err); 179 return; 180 } 181 sysbus_dev = SYS_BUS_DEVICE(&os->nvram); 182 memory_region_add_subregion(&s->bar, 0x60000, 183 sysbus_mmio_get_region(sysbus_dev, 0)); 184 pmac_format_nvram_partition(&os->nvram, os->nvram.size); 185 186 /* Heathrow PIC */ 187 sysbus_dev = SYS_BUS_DEVICE(os->pic); 188 memory_region_add_subregion(&s->bar, 0x0, 189 sysbus_mmio_get_region(sysbus_dev, 0)); 190 191 /* IDE buses */ 192 macio_realize_ide(s, &os->ide[0], 193 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_IRQ), 194 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_DMA_IRQ), 195 0x16, &err); 196 if (err) { 197 error_propagate(errp, err); 198 return; 199 } 200 201 macio_realize_ide(s, &os->ide[1], 202 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_IRQ), 203 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_DMA_IRQ), 204 0x1a, &err); 205 if (err) { 206 error_propagate(errp, err); 207 return; 208 } 209 } 210 211 static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, size_t ide_size, 212 int index) 213 { 214 gchar *name; 215 216 object_initialize(ide, ide_size, TYPE_MACIO_IDE); 217 qdev_set_parent_bus(DEVICE(ide), sysbus_get_default()); 218 memory_region_add_subregion(&s->bar, 0x1f000 + ((index + 1) * 0x1000), 219 &ide->mem); 220 name = g_strdup_printf("ide[%i]", index); 221 object_property_add_child(OBJECT(s), name, OBJECT(ide), NULL); 222 g_free(name); 223 } 224 225 static void macio_oldworld_init(Object *obj) 226 { 227 MacIOState *s = MACIO(obj); 228 OldWorldMacIOState *os = OLDWORLD_MACIO(obj); 229 DeviceState *dev; 230 int i; 231 232 object_property_add_link(obj, "pic", TYPE_HEATHROW, 233 (Object **) &os->pic, 234 qdev_prop_allow_set_link_before_realize, 235 0, NULL); 236 237 object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM); 238 dev = DEVICE(&os->nvram); 239 qdev_prop_set_uint32(dev, "size", 0x2000); 240 qdev_prop_set_uint32(dev, "it_shift", 4); 241 242 for (i = 0; i < 2; i++) { 243 macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i); 244 } 245 } 246 247 static void timer_write(void *opaque, hwaddr addr, uint64_t value, 248 unsigned size) 249 { 250 trace_macio_timer_write(addr, size, value); 251 } 252 253 static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size) 254 { 255 uint32_t value = 0; 256 uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 257 uint64_t kltime; 258 259 kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4); 260 kltime = muldiv64(kltime, 18432000, 1048575); 261 262 switch (addr) { 263 case 0x38: 264 value = kltime; 265 break; 266 case 0x3c: 267 value = kltime >> 32; 268 break; 269 } 270 271 trace_macio_timer_read(addr, size, value); 272 return value; 273 } 274 275 static const MemoryRegionOps timer_ops = { 276 .read = timer_read, 277 .write = timer_write, 278 .endianness = DEVICE_LITTLE_ENDIAN, 279 }; 280 281 static void macio_newworld_realize(PCIDevice *d, Error **errp) 282 { 283 MacIOState *s = MACIO(d); 284 NewWorldMacIOState *ns = NEWWORLD_MACIO(d); 285 DeviceState *pic_dev = DEVICE(ns->pic); 286 Error *err = NULL; 287 SysBusDevice *sysbus_dev; 288 MemoryRegion *timer_memory = NULL; 289 290 macio_common_realize(d, &err); 291 if (err) { 292 error_propagate(errp, err); 293 return; 294 } 295 296 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 297 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 298 NEWWORLD_CUDA_IRQ)); 299 300 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 301 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 302 NEWWORLD_ESCCB_IRQ)); 303 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 304 NEWWORLD_ESCCA_IRQ)); 305 306 /* OpenPIC */ 307 sysbus_dev = SYS_BUS_DEVICE(ns->pic); 308 memory_region_add_subregion(&s->bar, 0x40000, 309 sysbus_mmio_get_region(sysbus_dev, 0)); 310 311 /* IDE buses */ 312 macio_realize_ide(s, &ns->ide[0], 313 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ), 314 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ), 315 0x16, &err); 316 if (err) { 317 error_propagate(errp, err); 318 return; 319 } 320 321 macio_realize_ide(s, &ns->ide[1], 322 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ), 323 qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ), 324 0x1a, &err); 325 if (err) { 326 error_propagate(errp, err); 327 return; 328 } 329 330 /* Timer */ 331 timer_memory = g_new(MemoryRegion, 1); 332 memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer", 333 0x1000); 334 memory_region_add_subregion(&s->bar, 0x15000, timer_memory); 335 } 336 337 static void macio_newworld_init(Object *obj) 338 { 339 MacIOState *s = MACIO(obj); 340 NewWorldMacIOState *ns = NEWWORLD_MACIO(obj); 341 int i; 342 343 object_property_add_link(obj, "pic", TYPE_OPENPIC, 344 (Object **) &ns->pic, 345 qdev_prop_allow_set_link_before_realize, 346 0, NULL); 347 348 for (i = 0; i < 2; i++) { 349 macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i); 350 } 351 } 352 353 static void macio_instance_init(Object *obj) 354 { 355 MacIOState *s = MACIO(obj); 356 357 memory_region_init(&s->bar, obj, "macio", 0x80000); 358 359 object_initialize(&s->cuda, sizeof(s->cuda), TYPE_CUDA); 360 qdev_set_parent_bus(DEVICE(&s->cuda), sysbus_get_default()); 361 object_property_add_child(obj, "cuda", OBJECT(&s->cuda), NULL); 362 363 object_initialize(&s->dbdma, sizeof(s->dbdma), TYPE_MAC_DBDMA); 364 qdev_set_parent_bus(DEVICE(&s->dbdma), sysbus_get_default()); 365 object_property_add_child(obj, "dbdma", OBJECT(&s->dbdma), NULL); 366 367 object_initialize(&s->escc, sizeof(s->escc), TYPE_ESCC); 368 qdev_set_parent_bus(DEVICE(&s->escc), sysbus_get_default()); 369 object_property_add_child(obj, "escc", OBJECT(&s->escc), NULL); 370 } 371 372 static const VMStateDescription vmstate_macio_oldworld = { 373 .name = "macio-oldworld", 374 .version_id = 0, 375 .minimum_version_id = 0, 376 .fields = (VMStateField[]) { 377 VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState), 378 VMSTATE_END_OF_LIST() 379 } 380 }; 381 382 static void macio_oldworld_class_init(ObjectClass *oc, void *data) 383 { 384 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 385 DeviceClass *dc = DEVICE_CLASS(oc); 386 387 pdc->realize = macio_oldworld_realize; 388 pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201; 389 dc->vmsd = &vmstate_macio_oldworld; 390 } 391 392 static const VMStateDescription vmstate_macio_newworld = { 393 .name = "macio-newworld", 394 .version_id = 0, 395 .minimum_version_id = 0, 396 .fields = (VMStateField[]) { 397 VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState), 398 VMSTATE_END_OF_LIST() 399 } 400 }; 401 402 static void macio_newworld_class_init(ObjectClass *oc, void *data) 403 { 404 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 405 DeviceClass *dc = DEVICE_CLASS(oc); 406 407 pdc->realize = macio_newworld_realize; 408 pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL; 409 dc->vmsd = &vmstate_macio_newworld; 410 } 411 412 static Property macio_properties[] = { 413 DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0), 414 DEFINE_PROP_END_OF_LIST() 415 }; 416 417 static void macio_class_init(ObjectClass *klass, void *data) 418 { 419 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 420 DeviceClass *dc = DEVICE_CLASS(klass); 421 422 k->vendor_id = PCI_VENDOR_ID_APPLE; 423 k->class_id = PCI_CLASS_OTHERS << 8; 424 dc->props = macio_properties; 425 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 426 /* Reason: Uses serial_hds in macio_instance_init */ 427 dc->user_creatable = false; 428 } 429 430 static const TypeInfo macio_oldworld_type_info = { 431 .name = TYPE_OLDWORLD_MACIO, 432 .parent = TYPE_MACIO, 433 .instance_size = sizeof(OldWorldMacIOState), 434 .instance_init = macio_oldworld_init, 435 .class_init = macio_oldworld_class_init, 436 }; 437 438 static const TypeInfo macio_newworld_type_info = { 439 .name = TYPE_NEWWORLD_MACIO, 440 .parent = TYPE_MACIO, 441 .instance_size = sizeof(NewWorldMacIOState), 442 .instance_init = macio_newworld_init, 443 .class_init = macio_newworld_class_init, 444 }; 445 446 static const TypeInfo macio_type_info = { 447 .name = TYPE_MACIO, 448 .parent = TYPE_PCI_DEVICE, 449 .instance_size = sizeof(MacIOState), 450 .instance_init = macio_instance_init, 451 .abstract = true, 452 .class_init = macio_class_init, 453 .interfaces = (InterfaceInfo[]) { 454 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 455 { }, 456 }, 457 }; 458 459 static void macio_register_types(void) 460 { 461 type_register_static(&macio_type_info); 462 type_register_static(&macio_oldworld_type_info); 463 type_register_static(&macio_newworld_type_info); 464 } 465 466 type_init(macio_register_types) 467