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 "hw/hw.h" 26 #include "hw/ppc/mac.h" 27 #include "hw/pci/pci.h" 28 #include "hw/ppc/mac_dbdma.h" 29 #include "hw/char/escc.h" 30 31 #define TYPE_MACIO "macio" 32 #define MACIO(obj) OBJECT_CHECK(MacIOState, (obj), TYPE_MACIO) 33 34 typedef struct MacIOState 35 { 36 /*< private >*/ 37 PCIDevice parent; 38 /*< public >*/ 39 40 MemoryRegion bar; 41 CUDAState cuda; 42 void *dbdma; 43 MemoryRegion *pic_mem; 44 MemoryRegion *escc_mem; 45 uint64_t frequency; 46 } MacIOState; 47 48 #define OLDWORLD_MACIO(obj) \ 49 OBJECT_CHECK(OldWorldMacIOState, (obj), TYPE_OLDWORLD_MACIO) 50 51 typedef struct OldWorldMacIOState { 52 /*< private >*/ 53 MacIOState parent_obj; 54 /*< public >*/ 55 56 qemu_irq irqs[5]; 57 58 MacIONVRAMState nvram; 59 MACIOIDEState ide[2]; 60 } OldWorldMacIOState; 61 62 #define NEWWORLD_MACIO(obj) \ 63 OBJECT_CHECK(NewWorldMacIOState, (obj), TYPE_NEWWORLD_MACIO) 64 65 typedef struct NewWorldMacIOState { 66 /*< private >*/ 67 MacIOState parent_obj; 68 /*< public >*/ 69 qemu_irq irqs[5]; 70 MACIOIDEState ide[2]; 71 } NewWorldMacIOState; 72 73 /* 74 * The mac-io has two interfaces to the ESCC. One is called "escc-legacy", 75 * while the other one is the normal, current ESCC interface. 76 * 77 * The magic below creates memory aliases to spawn the escc-legacy device 78 * purely by rerouting the respective registers to our escc region. This 79 * works because the only difference between the two memory regions is the 80 * register layout, not their semantics. 81 * 82 * Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf 83 */ 84 static void macio_escc_legacy_setup(MacIOState *macio_state) 85 { 86 MemoryRegion *escc_legacy = g_new(MemoryRegion, 1); 87 MemoryRegion *bar = &macio_state->bar; 88 int i; 89 static const int maps[] = { 90 0x00, 0x00, 91 0x02, 0x20, 92 0x04, 0x10, 93 0x06, 0x30, 94 0x08, 0x40, 95 0x0A, 0x50, 96 0x60, 0x60, 97 0x70, 0x70, 98 0x80, 0x70, 99 0x90, 0x80, 100 0xA0, 0x90, 101 0xB0, 0xA0, 102 0xC0, 0xB0, 103 0xD0, 0xC0, 104 0xE0, 0xD0, 105 0xF0, 0xE0, 106 }; 107 108 memory_region_init(escc_legacy, OBJECT(macio_state), "escc-legacy", 256); 109 for (i = 0; i < ARRAY_SIZE(maps); i += 2) { 110 MemoryRegion *port = g_new(MemoryRegion, 1); 111 memory_region_init_alias(port, OBJECT(macio_state), "escc-legacy-port", 112 macio_state->escc_mem, maps[i+1], 0x2); 113 memory_region_add_subregion(escc_legacy, maps[i], port); 114 } 115 116 memory_region_add_subregion(bar, 0x12000, escc_legacy); 117 } 118 119 static void macio_bar_setup(MacIOState *macio_state) 120 { 121 MemoryRegion *bar = &macio_state->bar; 122 123 if (macio_state->escc_mem) { 124 memory_region_add_subregion(bar, 0x13000, macio_state->escc_mem); 125 macio_escc_legacy_setup(macio_state); 126 } 127 } 128 129 static void macio_common_realize(PCIDevice *d, Error **errp) 130 { 131 MacIOState *s = MACIO(d); 132 SysBusDevice *sysbus_dev; 133 Error *err = NULL; 134 MemoryRegion *dbdma_mem; 135 136 s->dbdma = DBDMA_init(&dbdma_mem); 137 memory_region_add_subregion(&s->bar, 0x08000, dbdma_mem); 138 139 object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err); 140 if (err) { 141 error_propagate(errp, err); 142 return; 143 } 144 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 145 memory_region_add_subregion(&s->bar, 0x16000, 146 sysbus_mmio_get_region(sysbus_dev, 0)); 147 148 macio_bar_setup(s); 149 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar); 150 } 151 152 static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide, 153 qemu_irq irq0, qemu_irq irq1, int dmaid, 154 Error **errp) 155 { 156 SysBusDevice *sysbus_dev; 157 158 sysbus_dev = SYS_BUS_DEVICE(ide); 159 sysbus_connect_irq(sysbus_dev, 0, irq0); 160 sysbus_connect_irq(sysbus_dev, 1, irq1); 161 macio_ide_register_dma(ide, s->dbdma, dmaid); 162 object_property_set_bool(OBJECT(ide), true, "realized", errp); 163 } 164 165 static void macio_oldworld_realize(PCIDevice *d, Error **errp) 166 { 167 MacIOState *s = MACIO(d); 168 OldWorldMacIOState *os = OLDWORLD_MACIO(d); 169 Error *err = NULL; 170 SysBusDevice *sysbus_dev; 171 int i; 172 int cur_irq = 0; 173 174 macio_common_realize(d, &err); 175 if (err) { 176 error_propagate(errp, err); 177 return; 178 } 179 180 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 181 sysbus_connect_irq(sysbus_dev, 0, os->irqs[cur_irq++]); 182 183 object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err); 184 if (err) { 185 error_propagate(errp, err); 186 return; 187 } 188 sysbus_dev = SYS_BUS_DEVICE(&os->nvram); 189 memory_region_add_subregion(&s->bar, 0x60000, 190 sysbus_mmio_get_region(sysbus_dev, 0)); 191 pmac_format_nvram_partition(&os->nvram, os->nvram.size); 192 193 if (s->pic_mem) { 194 /* Heathrow PIC */ 195 memory_region_add_subregion(&s->bar, 0x00000, s->pic_mem); 196 } 197 198 /* IDE buses */ 199 for (i = 0; i < ARRAY_SIZE(os->ide); i++) { 200 qemu_irq irq0 = os->irqs[cur_irq++]; 201 qemu_irq irq1 = os->irqs[cur_irq++]; 202 203 macio_realize_ide(s, &os->ide[i], irq0, irq1, 0x16 + (i * 4), &err); 204 if (err) { 205 error_propagate(errp, err); 206 return; 207 } 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 qdev_init_gpio_out(DEVICE(obj), os->irqs, ARRAY_SIZE(os->irqs)); 233 234 object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM); 235 dev = DEVICE(&os->nvram); 236 qdev_prop_set_uint32(dev, "size", 0x2000); 237 qdev_prop_set_uint32(dev, "it_shift", 4); 238 239 for (i = 0; i < 2; i++) { 240 macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i); 241 } 242 } 243 244 static void timer_write(void *opaque, hwaddr addr, uint64_t value, 245 unsigned size) 246 { 247 } 248 249 static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size) 250 { 251 uint32_t value = 0; 252 uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 253 uint64_t kltime; 254 255 kltime = muldiv64(systime, 4194300, get_ticks_per_sec() * 4); 256 kltime = muldiv64(kltime, 18432000, 1048575); 257 258 switch (addr) { 259 case 0x38: 260 value = kltime; 261 break; 262 case 0x3c: 263 value = kltime >> 32; 264 break; 265 } 266 267 return value; 268 } 269 270 static const MemoryRegionOps timer_ops = { 271 .read = timer_read, 272 .write = timer_write, 273 .endianness = DEVICE_LITTLE_ENDIAN, 274 }; 275 276 static void macio_newworld_realize(PCIDevice *d, Error **errp) 277 { 278 MacIOState *s = MACIO(d); 279 NewWorldMacIOState *ns = NEWWORLD_MACIO(d); 280 Error *err = NULL; 281 SysBusDevice *sysbus_dev; 282 MemoryRegion *timer_memory = NULL; 283 int i; 284 int cur_irq = 0; 285 286 macio_common_realize(d, &err); 287 if (err) { 288 error_propagate(errp, err); 289 return; 290 } 291 292 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 293 sysbus_connect_irq(sysbus_dev, 0, ns->irqs[cur_irq++]); 294 295 if (s->pic_mem) { 296 /* OpenPIC */ 297 memory_region_add_subregion(&s->bar, 0x40000, s->pic_mem); 298 } 299 300 /* IDE buses */ 301 for (i = 0; i < ARRAY_SIZE(ns->ide); i++) { 302 qemu_irq irq0 = ns->irqs[cur_irq++]; 303 qemu_irq irq1 = ns->irqs[cur_irq++]; 304 305 macio_realize_ide(s, &ns->ide[i], irq0, irq1, 0x16 + (i * 4), &err); 306 if (err) { 307 error_propagate(errp, err); 308 return; 309 } 310 } 311 312 /* Timer */ 313 timer_memory = g_new(MemoryRegion, 1); 314 memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer", 315 0x1000); 316 memory_region_add_subregion(&s->bar, 0x15000, timer_memory); 317 } 318 319 static void macio_newworld_init(Object *obj) 320 { 321 MacIOState *s = MACIO(obj); 322 NewWorldMacIOState *ns = NEWWORLD_MACIO(obj); 323 int i; 324 325 qdev_init_gpio_out(DEVICE(obj), ns->irqs, ARRAY_SIZE(ns->irqs)); 326 327 for (i = 0; i < 2; i++) { 328 macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i); 329 } 330 } 331 332 static void macio_instance_init(Object *obj) 333 { 334 MacIOState *s = MACIO(obj); 335 336 memory_region_init(&s->bar, obj, "macio", 0x80000); 337 338 object_initialize(&s->cuda, sizeof(s->cuda), TYPE_CUDA); 339 qdev_set_parent_bus(DEVICE(&s->cuda), sysbus_get_default()); 340 object_property_add_child(obj, "cuda", OBJECT(&s->cuda), NULL); 341 } 342 343 static const VMStateDescription vmstate_macio_oldworld = { 344 .name = "macio-oldworld", 345 .version_id = 0, 346 .minimum_version_id = 0, 347 .fields = (VMStateField[]) { 348 VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState), 349 VMSTATE_END_OF_LIST() 350 } 351 }; 352 353 static void macio_oldworld_class_init(ObjectClass *oc, void *data) 354 { 355 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 356 DeviceClass *dc = DEVICE_CLASS(oc); 357 358 pdc->realize = macio_oldworld_realize; 359 pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201; 360 dc->vmsd = &vmstate_macio_oldworld; 361 } 362 363 static const VMStateDescription vmstate_macio_newworld = { 364 .name = "macio-newworld", 365 .version_id = 0, 366 .minimum_version_id = 0, 367 .fields = (VMStateField[]) { 368 VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState), 369 VMSTATE_END_OF_LIST() 370 } 371 }; 372 373 static void macio_newworld_class_init(ObjectClass *oc, void *data) 374 { 375 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 376 DeviceClass *dc = DEVICE_CLASS(oc); 377 378 pdc->realize = macio_newworld_realize; 379 pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL; 380 dc->vmsd = &vmstate_macio_newworld; 381 } 382 383 static Property macio_properties[] = { 384 DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0), 385 DEFINE_PROP_END_OF_LIST() 386 }; 387 388 static void macio_class_init(ObjectClass *klass, void *data) 389 { 390 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 391 DeviceClass *dc = DEVICE_CLASS(klass); 392 393 k->vendor_id = PCI_VENDOR_ID_APPLE; 394 k->class_id = PCI_CLASS_OTHERS << 8; 395 dc->props = macio_properties; 396 } 397 398 static const TypeInfo macio_oldworld_type_info = { 399 .name = TYPE_OLDWORLD_MACIO, 400 .parent = TYPE_MACIO, 401 .instance_size = sizeof(OldWorldMacIOState), 402 .instance_init = macio_oldworld_init, 403 .class_init = macio_oldworld_class_init, 404 }; 405 406 static const TypeInfo macio_newworld_type_info = { 407 .name = TYPE_NEWWORLD_MACIO, 408 .parent = TYPE_MACIO, 409 .instance_size = sizeof(NewWorldMacIOState), 410 .instance_init = macio_newworld_init, 411 .class_init = macio_newworld_class_init, 412 }; 413 414 static const TypeInfo macio_type_info = { 415 .name = TYPE_MACIO, 416 .parent = TYPE_PCI_DEVICE, 417 .instance_size = sizeof(MacIOState), 418 .instance_init = macio_instance_init, 419 .abstract = true, 420 .class_init = macio_class_init, 421 }; 422 423 static void macio_register_types(void) 424 { 425 type_register_static(&macio_type_info); 426 type_register_static(&macio_oldworld_type_info); 427 type_register_static(&macio_newworld_type_info); 428 } 429 430 type_init(macio_register_types) 431 432 void macio_init(PCIDevice *d, 433 MemoryRegion *pic_mem, 434 MemoryRegion *escc_mem) 435 { 436 MacIOState *macio_state = MACIO(d); 437 438 macio_state->pic_mem = pic_mem; 439 macio_state->escc_mem = escc_mem; 440 /* Note: this code is strongly inspirated from the corresponding code 441 in PearPC */ 442 qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "frequency", 443 macio_state->frequency); 444 445 qdev_init_nofail(DEVICE(d)); 446 } 447