1 /* 2 * Marvell Discovery II MV64361 System Controller for 3 * QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator 4 * 5 * Copyright (c) 2018-2020 BALATON Zoltan 6 * 7 * This work is licensed under the GNU GPL license version 2 or later. 8 * 9 */ 10 11 #include "qemu/osdep.h" 12 #include "qemu/units.h" 13 #include "qapi/error.h" 14 #include "hw/sysbus.h" 15 #include "hw/pci/pci_device.h" 16 #include "hw/pci/pci_host.h" 17 #include "hw/irq.h" 18 #include "hw/intc/i8259.h" 19 #include "hw/qdev-properties.h" 20 #include "exec/address-spaces.h" 21 #include "qemu/log.h" 22 #include "qemu/error-report.h" 23 #include "trace.h" 24 #include "hw/pci-host/mv64361.h" 25 #include "mv643xx.h" 26 27 #define TYPE_MV64361_PCI_BRIDGE "mv64361-pcibridge" 28 29 static void mv64361_pcibridge_class_init(ObjectClass *klass, void *data) 30 { 31 DeviceClass *dc = DEVICE_CLASS(klass); 32 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 33 34 k->vendor_id = PCI_VENDOR_ID_MARVELL; 35 k->device_id = PCI_DEVICE_ID_MARVELL_MV6436X; 36 k->class_id = PCI_CLASS_BRIDGE_HOST; 37 /* 38 * PCI-facing part of the host bridge, 39 * not usable without the host-facing part 40 */ 41 dc->user_creatable = false; 42 } 43 44 static const TypeInfo mv64361_pcibridge_info = { 45 .name = TYPE_MV64361_PCI_BRIDGE, 46 .parent = TYPE_PCI_DEVICE, 47 .instance_size = sizeof(PCIDevice), 48 .class_init = mv64361_pcibridge_class_init, 49 .interfaces = (InterfaceInfo[]) { 50 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 51 { }, 52 }, 53 }; 54 55 56 #define TYPE_MV64361_PCI "mv64361-pcihost" 57 OBJECT_DECLARE_SIMPLE_TYPE(MV64361PCIState, MV64361_PCI) 58 59 struct MV64361PCIState { 60 PCIHostState parent_obj; 61 62 uint8_t index; 63 MemoryRegion io; 64 MemoryRegion mem; 65 qemu_irq irq[PCI_NUM_PINS]; 66 67 uint32_t io_base; 68 uint32_t io_size; 69 uint32_t mem_base[4]; 70 uint32_t mem_size[4]; 71 uint64_t remap[5]; 72 }; 73 74 static void mv64361_pcihost_set_irq(void *opaque, int n, int level) 75 { 76 MV64361PCIState *s = opaque; 77 qemu_set_irq(s->irq[n], level); 78 } 79 80 static void mv64361_pcihost_realize(DeviceState *dev, Error **errp) 81 { 82 MV64361PCIState *s = MV64361_PCI(dev); 83 PCIHostState *h = PCI_HOST_BRIDGE(dev); 84 char *name; 85 86 name = g_strdup_printf("pci%d-io", s->index); 87 memory_region_init(&s->io, OBJECT(dev), name, 0x10000); 88 g_free(name); 89 name = g_strdup_printf("pci%d-mem", s->index); 90 memory_region_init(&s->mem, OBJECT(dev), name, 1ULL << 32); 91 g_free(name); 92 name = g_strdup_printf("pci.%d", s->index); 93 h->bus = pci_register_root_bus(dev, name, mv64361_pcihost_set_irq, 94 pci_swizzle_map_irq_fn, dev, 95 &s->mem, &s->io, 0, 4, TYPE_PCI_BUS); 96 g_free(name); 97 pci_create_simple(h->bus, 0, TYPE_MV64361_PCI_BRIDGE); 98 qdev_init_gpio_out(dev, s->irq, ARRAY_SIZE(s->irq)); 99 } 100 101 static const Property mv64361_pcihost_props[] = { 102 DEFINE_PROP_UINT8("index", MV64361PCIState, index, 0), 103 }; 104 105 static void mv64361_pcihost_class_init(ObjectClass *klass, void *data) 106 { 107 DeviceClass *dc = DEVICE_CLASS(klass); 108 109 dc->realize = mv64361_pcihost_realize; 110 device_class_set_props(dc, mv64361_pcihost_props); 111 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 112 } 113 114 static const TypeInfo mv64361_pcihost_info = { 115 .name = TYPE_MV64361_PCI, 116 .parent = TYPE_PCI_HOST_BRIDGE, 117 .instance_size = sizeof(MV64361PCIState), 118 .class_init = mv64361_pcihost_class_init, 119 }; 120 121 static void mv64361_pci_register_types(void) 122 { 123 type_register_static(&mv64361_pcihost_info); 124 type_register_static(&mv64361_pcibridge_info); 125 } 126 127 type_init(mv64361_pci_register_types) 128 129 130 OBJECT_DECLARE_SIMPLE_TYPE(MV64361State, MV64361) 131 132 struct MV64361State { 133 SysBusDevice parent_obj; 134 135 MemoryRegion regs; 136 MV64361PCIState pci[2]; 137 MemoryRegion cpu_win[19]; 138 qemu_irq cpu_irq; 139 140 /* registers state */ 141 uint32_t cpu_conf; 142 uint32_t regs_base; 143 uint32_t base_addr_enable; 144 uint64_t main_int_cr; 145 uint64_t cpu0_int_mask; 146 uint32_t gpp_io; 147 uint32_t gpp_level; 148 uint32_t gpp_value; 149 uint32_t gpp_int_cr; 150 uint32_t gpp_int_mask; 151 bool gpp_int_level; 152 }; 153 154 enum mv64361_irq_cause { 155 MV64361_IRQ_DEVERR = 1, 156 MV64361_IRQ_DMAERR = 2, 157 MV64361_IRQ_CPUERR = 3, 158 MV64361_IRQ_IDMA0 = 4, 159 MV64361_IRQ_IDMA1 = 5, 160 MV64361_IRQ_IDMA2 = 6, 161 MV64361_IRQ_IDMA3 = 7, 162 MV64361_IRQ_TIMER0 = 8, 163 MV64361_IRQ_TIMER1 = 9, 164 MV64361_IRQ_TIMER2 = 10, 165 MV64361_IRQ_TIMER3 = 11, 166 MV64361_IRQ_PCI0 = 12, 167 MV64361_IRQ_SRAMERR = 13, 168 MV64361_IRQ_GBEERR = 14, 169 MV64361_IRQ_CERR = 15, 170 MV64361_IRQ_PCI1 = 16, 171 MV64361_IRQ_DRAMERR = 17, 172 MV64361_IRQ_WDNMI = 18, 173 MV64361_IRQ_WDE = 19, 174 MV64361_IRQ_PCI0IN = 20, 175 MV64361_IRQ_PCI0OUT = 21, 176 MV64361_IRQ_PCI1IN = 22, 177 MV64361_IRQ_PCI1OUT = 23, 178 MV64361_IRQ_P1_GPP0_7 = 24, 179 MV64361_IRQ_P1_GPP8_15 = 25, 180 MV64361_IRQ_P1_GPP16_23 = 26, 181 MV64361_IRQ_P1_GPP24_31 = 27, 182 MV64361_IRQ_P1_CPU_DB = 28, 183 /* 29-31: reserved */ 184 MV64361_IRQ_GBE0 = 32, 185 MV64361_IRQ_GBE1 = 33, 186 MV64361_IRQ_GBE2 = 34, 187 /* 35: reserved */ 188 MV64361_IRQ_SDMA0 = 36, 189 MV64361_IRQ_TWSI = 37, 190 MV64361_IRQ_SDMA1 = 38, 191 MV64361_IRQ_BRG = 39, 192 MV64361_IRQ_MPSC0 = 40, 193 MV64361_IRQ_MPSC1 = 41, 194 MV64361_IRQ_G0RX = 42, 195 MV64361_IRQ_G0TX = 43, 196 MV64361_IRQ_G0MISC = 44, 197 MV64361_IRQ_G1RX = 45, 198 MV64361_IRQ_G1TX = 46, 199 MV64361_IRQ_G1MISC = 47, 200 MV64361_IRQ_G2RX = 48, 201 MV64361_IRQ_G2TX = 49, 202 MV64361_IRQ_G2MISC = 50, 203 /* 51-55: reserved */ 204 MV64361_IRQ_P0_GPP0_7 = 56, 205 MV64361_IRQ_P0_GPP8_15 = 57, 206 MV64361_IRQ_P0_GPP16_23 = 58, 207 MV64361_IRQ_P0_GPP24_31 = 59, 208 MV64361_IRQ_P0_CPU_DB = 60, 209 /* 61-63: reserved */ 210 }; 211 212 PCIBus *mv64361_get_pci_bus(DeviceState *dev, int n) 213 { 214 MV64361State *mv = MV64361(dev); 215 return PCI_HOST_BRIDGE(&mv->pci[n])->bus; 216 } 217 218 static void unmap_region(MemoryRegion *mr) 219 { 220 if (memory_region_is_mapped(mr)) { 221 memory_region_del_subregion(get_system_memory(), mr); 222 object_unparent(OBJECT(mr)); 223 } 224 } 225 226 static void map_pci_region(MemoryRegion *mr, MemoryRegion *parent, 227 struct Object *owner, const char *name, 228 hwaddr poffs, uint64_t size, hwaddr moffs) 229 { 230 memory_region_init_alias(mr, owner, name, parent, poffs, size); 231 memory_region_add_subregion(get_system_memory(), moffs, mr); 232 trace_mv64361_region_map(name, poffs, size, moffs); 233 } 234 235 static void set_mem_windows(MV64361State *s, uint32_t val) 236 { 237 MV64361PCIState *p; 238 MemoryRegion *mr; 239 uint32_t mask; 240 int i; 241 242 val &= 0x1fffff; 243 for (mask = 1, i = 0; i < 21; i++, mask <<= 1) { 244 if ((val & mask) != (s->base_addr_enable & mask)) { 245 trace_mv64361_region_enable(!(val & mask) ? "enable" : "disable", i); 246 /* 247 * 0-3 are SDRAM chip selects but we map all RAM directly 248 * 4-7 are device chip selects (not sure what those are) 249 * 8 is Boot device (ROM) chip select but we map that directly too 250 */ 251 if (i == 9) { 252 p = &s->pci[0]; 253 mr = &s->cpu_win[i]; 254 unmap_region(mr); 255 if (!(val & mask)) { 256 map_pci_region(mr, &p->io, OBJECT(s), "pci0-io-win", 257 p->remap[4], (p->io_size + 1) << 16, 258 (p->io_base & 0xfffff) << 16); 259 } 260 } else if (i == 10) { 261 p = &s->pci[0]; 262 mr = &s->cpu_win[i]; 263 unmap_region(mr); 264 if (!(val & mask)) { 265 map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem0-win", 266 p->remap[0], (p->mem_size[0] + 1) << 16, 267 (p->mem_base[0] & 0xfffff) << 16); 268 } 269 } else if (i == 11) { 270 p = &s->pci[0]; 271 mr = &s->cpu_win[i]; 272 unmap_region(mr); 273 if (!(val & mask)) { 274 map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem1-win", 275 p->remap[1], (p->mem_size[1] + 1) << 16, 276 (p->mem_base[1] & 0xfffff) << 16); 277 } 278 } else if (i == 12) { 279 p = &s->pci[0]; 280 mr = &s->cpu_win[i]; 281 unmap_region(mr); 282 if (!(val & mask)) { 283 map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem2-win", 284 p->remap[2], (p->mem_size[2] + 1) << 16, 285 (p->mem_base[2] & 0xfffff) << 16); 286 } 287 } else if (i == 13) { 288 p = &s->pci[0]; 289 mr = &s->cpu_win[i]; 290 unmap_region(mr); 291 if (!(val & mask)) { 292 map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem3-win", 293 p->remap[3], (p->mem_size[3] + 1) << 16, 294 (p->mem_base[3] & 0xfffff) << 16); 295 } 296 } else if (i == 14) { 297 p = &s->pci[1]; 298 mr = &s->cpu_win[i]; 299 unmap_region(mr); 300 if (!(val & mask)) { 301 map_pci_region(mr, &p->io, OBJECT(s), "pci1-io-win", 302 p->remap[4], (p->io_size + 1) << 16, 303 (p->io_base & 0xfffff) << 16); 304 } 305 } else if (i == 15) { 306 p = &s->pci[1]; 307 mr = &s->cpu_win[i]; 308 unmap_region(mr); 309 if (!(val & mask)) { 310 map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem0-win", 311 p->remap[0], (p->mem_size[0] + 1) << 16, 312 (p->mem_base[0] & 0xfffff) << 16); 313 } 314 } else if (i == 16) { 315 p = &s->pci[1]; 316 mr = &s->cpu_win[i]; 317 unmap_region(mr); 318 if (!(val & mask)) { 319 map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem1-win", 320 p->remap[1], (p->mem_size[1] + 1) << 16, 321 (p->mem_base[1] & 0xfffff) << 16); 322 } 323 } else if (i == 17) { 324 p = &s->pci[1]; 325 mr = &s->cpu_win[i]; 326 unmap_region(mr); 327 if (!(val & mask)) { 328 map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem2-win", 329 p->remap[2], (p->mem_size[2] + 1) << 16, 330 (p->mem_base[2] & 0xfffff) << 16); 331 } 332 } else if (i == 18) { 333 p = &s->pci[1]; 334 mr = &s->cpu_win[i]; 335 unmap_region(mr); 336 if (!(val & mask)) { 337 map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem3-win", 338 p->remap[3], (p->mem_size[3] + 1) << 16, 339 (p->mem_base[3] & 0xfffff) << 16); 340 } 341 /* 19 is integrated SRAM */ 342 } else if (i == 20) { 343 mr = &s->regs; 344 unmap_region(mr); 345 if (!(val & mask)) { 346 memory_region_add_subregion(get_system_memory(), 347 (s->regs_base & 0xfffff) << 16, mr); 348 } 349 } 350 } 351 } 352 s->base_addr_enable = val; 353 } 354 355 static void mv64361_update_irq(void *opaque, int n, int level) 356 { 357 MV64361State *s = opaque; 358 uint64_t val = s->main_int_cr; 359 360 if (level) { 361 val |= BIT_ULL(n); 362 } else { 363 val &= ~BIT_ULL(n); 364 } 365 if ((s->main_int_cr & s->cpu0_int_mask) != (val & s->cpu0_int_mask)) { 366 qemu_set_irq(s->cpu_irq, level); 367 } 368 s->main_int_cr = val; 369 } 370 371 static uint64_t mv64361_read(void *opaque, hwaddr addr, unsigned int size) 372 { 373 MV64361State *s = MV64361(opaque); 374 uint32_t ret = 0; 375 376 switch (addr) { 377 case MV64340_CPU_CONFIG: 378 ret = s->cpu_conf; 379 break; 380 case MV64340_PCI_0_IO_BASE_ADDR: 381 ret = s->pci[0].io_base; 382 break; 383 case MV64340_PCI_0_IO_SIZE: 384 ret = s->pci[0].io_size; 385 break; 386 case MV64340_PCI_0_IO_ADDR_REMAP: 387 ret = s->pci[0].remap[4] >> 16; 388 break; 389 case MV64340_PCI_0_MEMORY0_BASE_ADDR: 390 ret = s->pci[0].mem_base[0]; 391 break; 392 case MV64340_PCI_0_MEMORY0_SIZE: 393 ret = s->pci[0].mem_size[0]; 394 break; 395 case MV64340_PCI_0_MEMORY0_LOW_ADDR_REMAP: 396 ret = (s->pci[0].remap[0] & 0xffff0000) >> 16; 397 break; 398 case MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP: 399 ret = s->pci[0].remap[0] >> 32; 400 break; 401 case MV64340_PCI_0_MEMORY1_BASE_ADDR: 402 ret = s->pci[0].mem_base[1]; 403 break; 404 case MV64340_PCI_0_MEMORY1_SIZE: 405 ret = s->pci[0].mem_size[1]; 406 break; 407 case MV64340_PCI_0_MEMORY1_LOW_ADDR_REMAP: 408 ret = (s->pci[0].remap[1] & 0xffff0000) >> 16; 409 break; 410 case MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP: 411 ret = s->pci[0].remap[1] >> 32; 412 break; 413 case MV64340_PCI_0_MEMORY2_BASE_ADDR: 414 ret = s->pci[0].mem_base[2]; 415 break; 416 case MV64340_PCI_0_MEMORY2_SIZE: 417 ret = s->pci[0].mem_size[2]; 418 break; 419 case MV64340_PCI_0_MEMORY2_LOW_ADDR_REMAP: 420 ret = (s->pci[0].remap[2] & 0xffff0000) >> 16; 421 break; 422 case MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP: 423 ret = s->pci[0].remap[2] >> 32; 424 break; 425 case MV64340_PCI_0_MEMORY3_BASE_ADDR: 426 ret = s->pci[0].mem_base[3]; 427 break; 428 case MV64340_PCI_0_MEMORY3_SIZE: 429 ret = s->pci[0].mem_size[3]; 430 break; 431 case MV64340_PCI_0_MEMORY3_LOW_ADDR_REMAP: 432 ret = (s->pci[0].remap[3] & 0xffff0000) >> 16; 433 break; 434 case MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP: 435 ret = s->pci[0].remap[3] >> 32; 436 break; 437 case MV64340_PCI_1_IO_BASE_ADDR: 438 ret = s->pci[1].io_base; 439 break; 440 case MV64340_PCI_1_IO_SIZE: 441 ret = s->pci[1].io_size; 442 break; 443 case MV64340_PCI_1_IO_ADDR_REMAP: 444 ret = s->pci[1].remap[4] >> 16; 445 break; 446 case MV64340_PCI_1_MEMORY0_BASE_ADDR: 447 ret = s->pci[1].mem_base[0]; 448 break; 449 case MV64340_PCI_1_MEMORY0_SIZE: 450 ret = s->pci[1].mem_size[0]; 451 break; 452 case MV64340_PCI_1_MEMORY0_LOW_ADDR_REMAP: 453 ret = (s->pci[1].remap[0] & 0xffff0000) >> 16; 454 break; 455 case MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP: 456 ret = s->pci[1].remap[0] >> 32; 457 break; 458 case MV64340_PCI_1_MEMORY1_BASE_ADDR: 459 ret = s->pci[1].mem_base[1]; 460 break; 461 case MV64340_PCI_1_MEMORY1_SIZE: 462 ret = s->pci[1].mem_size[1]; 463 break; 464 case MV64340_PCI_1_MEMORY1_LOW_ADDR_REMAP: 465 ret = (s->pci[1].remap[1] & 0xffff0000) >> 16; 466 break; 467 case MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP: 468 ret = s->pci[1].remap[1] >> 32; 469 break; 470 case MV64340_PCI_1_MEMORY2_BASE_ADDR: 471 ret = s->pci[1].mem_base[2]; 472 break; 473 case MV64340_PCI_1_MEMORY2_SIZE: 474 ret = s->pci[1].mem_size[2]; 475 break; 476 case MV64340_PCI_1_MEMORY2_LOW_ADDR_REMAP: 477 ret = (s->pci[1].remap[2] & 0xffff0000) >> 16; 478 break; 479 case MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP: 480 ret = s->pci[1].remap[2] >> 32; 481 break; 482 case MV64340_PCI_1_MEMORY3_BASE_ADDR: 483 ret = s->pci[1].mem_base[3]; 484 break; 485 case MV64340_PCI_1_MEMORY3_SIZE: 486 ret = s->pci[1].mem_size[3]; 487 break; 488 case MV64340_PCI_1_MEMORY3_LOW_ADDR_REMAP: 489 ret = (s->pci[1].remap[3] & 0xffff0000) >> 16; 490 break; 491 case MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP: 492 ret = s->pci[1].remap[3] >> 32; 493 break; 494 case MV64340_INTERNAL_SPACE_BASE_ADDR: 495 ret = s->regs_base; 496 break; 497 case MV64340_BASE_ADDR_ENABLE: 498 ret = s->base_addr_enable; 499 break; 500 case MV64340_PCI_0_CONFIG_ADDR: 501 ret = pci_host_conf_le_ops.read(PCI_HOST_BRIDGE(&s->pci[0]), 0, size); 502 break; 503 case MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG ... 504 MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG + 3: 505 ret = pci_host_data_le_ops.read(PCI_HOST_BRIDGE(&s->pci[0]), 506 addr - MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG, size); 507 break; 508 case MV64340_PCI_1_CONFIG_ADDR: 509 ret = pci_host_conf_le_ops.read(PCI_HOST_BRIDGE(&s->pci[1]), 0, size); 510 break; 511 case MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG ... 512 MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG + 3: 513 ret = pci_host_data_le_ops.read(PCI_HOST_BRIDGE(&s->pci[1]), 514 addr - MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG, size); 515 break; 516 case MV64340_PCI_1_INTERRUPT_ACKNOWLEDGE_VIRTUAL_REG: 517 /* FIXME: Should this be sent via the PCI bus somehow? */ 518 if (s->gpp_int_level && (s->gpp_value & BIT(31))) { 519 ret = pic_read_irq(isa_pic); 520 } 521 break; 522 case MV64340_MAIN_INTERRUPT_CAUSE_LOW: 523 ret = s->main_int_cr; 524 break; 525 case MV64340_MAIN_INTERRUPT_CAUSE_HIGH: 526 ret = s->main_int_cr >> 32; 527 break; 528 case MV64340_CPU_INTERRUPT0_MASK_LOW: 529 ret = s->cpu0_int_mask; 530 break; 531 case MV64340_CPU_INTERRUPT0_MASK_HIGH: 532 ret = s->cpu0_int_mask >> 32; 533 break; 534 case MV64340_CPU_INTERRUPT0_SELECT_CAUSE: 535 ret = s->main_int_cr; 536 if (s->main_int_cr & s->cpu0_int_mask) { 537 if (!(s->main_int_cr & s->cpu0_int_mask & 0xffffffff)) { 538 ret = s->main_int_cr >> 32 | BIT(30); 539 } else if ((s->main_int_cr & s->cpu0_int_mask) >> 32) { 540 ret |= BIT(31); 541 } 542 } 543 break; 544 case MV64340_ETH_PHY_ADDR: 545 ret = 0x98; 546 break; 547 case MV64340_ETH_SMI: 548 ret = BIT(27); 549 break; 550 case MV64340_CUNIT_ARBITER_CONTROL_REG: 551 ret = 0x11ff0000 | (s->gpp_int_level << 10); 552 break; 553 case MV64340_GPP_IO_CONTROL: 554 ret = s->gpp_io; 555 break; 556 case MV64340_GPP_LEVEL_CONTROL: 557 ret = s->gpp_level; 558 break; 559 case MV64340_GPP_VALUE: 560 ret = s->gpp_value; 561 break; 562 case MV64340_GPP_VALUE_SET: 563 case MV64340_GPP_VALUE_CLEAR: 564 ret = 0; 565 break; 566 case MV64340_GPP_INTERRUPT_CAUSE: 567 ret = s->gpp_int_cr; 568 break; 569 case MV64340_GPP_INTERRUPT_MASK0: 570 case MV64340_GPP_INTERRUPT_MASK1: 571 ret = s->gpp_int_mask; 572 break; 573 default: 574 qemu_log_mask(LOG_UNIMP, "%s: Unimplemented register read 0x%" 575 HWADDR_PRIx "\n", __func__, addr); 576 break; 577 } 578 if (addr != MV64340_PCI_1_INTERRUPT_ACKNOWLEDGE_VIRTUAL_REG) { 579 trace_mv64361_reg_read(addr, ret); 580 } 581 return ret; 582 } 583 584 static void warn_swap_bit(uint64_t val) 585 { 586 if ((val & 0x3000000ULL) >> 24 != 1) { 587 qemu_log_mask(LOG_UNIMP, "%s: Data swap not implemented", __func__); 588 } 589 } 590 591 static void mv64361_set_pci_mem_remap(MV64361State *s, int bus, int idx, 592 uint64_t val, bool high) 593 { 594 if (high) { 595 s->pci[bus].remap[idx] = val; 596 } else { 597 s->pci[bus].remap[idx] &= 0xffffffff00000000ULL; 598 s->pci[bus].remap[idx] |= (val & 0xffffULL) << 16; 599 } 600 } 601 602 static void mv64361_write(void *opaque, hwaddr addr, uint64_t val, 603 unsigned int size) 604 { 605 MV64361State *s = MV64361(opaque); 606 607 trace_mv64361_reg_write(addr, val); 608 switch (addr) { 609 case MV64340_CPU_CONFIG: 610 s->cpu_conf = val & 0xe4e3bffULL; 611 s->cpu_conf |= BIT(23); 612 break; 613 case MV64340_PCI_0_IO_BASE_ADDR: 614 s->pci[0].io_base = val & 0x30fffffULL; 615 warn_swap_bit(val); 616 if (!(s->cpu_conf & BIT(27))) { 617 s->pci[0].remap[4] = (val & 0xffffULL) << 16; 618 } 619 break; 620 case MV64340_PCI_0_IO_SIZE: 621 s->pci[0].io_size = val & 0xffffULL; 622 break; 623 case MV64340_PCI_0_IO_ADDR_REMAP: 624 s->pci[0].remap[4] = (val & 0xffffULL) << 16; 625 break; 626 case MV64340_PCI_0_MEMORY0_BASE_ADDR: 627 s->pci[0].mem_base[0] = val & 0x70fffffULL; 628 warn_swap_bit(val); 629 if (!(s->cpu_conf & BIT(27))) { 630 mv64361_set_pci_mem_remap(s, 0, 0, val, false); 631 } 632 break; 633 case MV64340_PCI_0_MEMORY0_SIZE: 634 s->pci[0].mem_size[0] = val & 0xffffULL; 635 break; 636 case MV64340_PCI_0_MEMORY0_LOW_ADDR_REMAP: 637 case MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP: 638 mv64361_set_pci_mem_remap(s, 0, 0, val, 639 (addr == MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP)); 640 break; 641 case MV64340_PCI_0_MEMORY1_BASE_ADDR: 642 s->pci[0].mem_base[1] = val & 0x70fffffULL; 643 warn_swap_bit(val); 644 if (!(s->cpu_conf & BIT(27))) { 645 mv64361_set_pci_mem_remap(s, 0, 1, val, false); 646 } 647 break; 648 case MV64340_PCI_0_MEMORY1_SIZE: 649 s->pci[0].mem_size[1] = val & 0xffffULL; 650 break; 651 case MV64340_PCI_0_MEMORY1_LOW_ADDR_REMAP: 652 case MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP: 653 mv64361_set_pci_mem_remap(s, 0, 1, val, 654 (addr == MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP)); 655 break; 656 case MV64340_PCI_0_MEMORY2_BASE_ADDR: 657 s->pci[0].mem_base[2] = val & 0x70fffffULL; 658 warn_swap_bit(val); 659 if (!(s->cpu_conf & BIT(27))) { 660 mv64361_set_pci_mem_remap(s, 0, 2, val, false); 661 } 662 break; 663 case MV64340_PCI_0_MEMORY2_SIZE: 664 s->pci[0].mem_size[2] = val & 0xffffULL; 665 break; 666 case MV64340_PCI_0_MEMORY2_LOW_ADDR_REMAP: 667 case MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP: 668 mv64361_set_pci_mem_remap(s, 0, 2, val, 669 (addr == MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP)); 670 break; 671 case MV64340_PCI_0_MEMORY3_BASE_ADDR: 672 s->pci[0].mem_base[3] = val & 0x70fffffULL; 673 warn_swap_bit(val); 674 if (!(s->cpu_conf & BIT(27))) { 675 mv64361_set_pci_mem_remap(s, 0, 3, val, false); 676 } 677 break; 678 case MV64340_PCI_0_MEMORY3_SIZE: 679 s->pci[0].mem_size[3] = val & 0xffffULL; 680 break; 681 case MV64340_PCI_0_MEMORY3_LOW_ADDR_REMAP: 682 case MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP: 683 mv64361_set_pci_mem_remap(s, 0, 3, val, 684 (addr == MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP)); 685 break; 686 case MV64340_PCI_1_IO_BASE_ADDR: 687 s->pci[1].io_base = val & 0x30fffffULL; 688 warn_swap_bit(val); 689 if (!(s->cpu_conf & BIT(27))) { 690 s->pci[1].remap[4] = (val & 0xffffULL) << 16; 691 } 692 break; 693 case MV64340_PCI_1_IO_SIZE: 694 s->pci[1].io_size = val & 0xffffULL; 695 break; 696 case MV64340_PCI_1_MEMORY0_BASE_ADDR: 697 s->pci[1].mem_base[0] = val & 0x70fffffULL; 698 warn_swap_bit(val); 699 if (!(s->cpu_conf & BIT(27))) { 700 mv64361_set_pci_mem_remap(s, 1, 0, val, false); 701 } 702 break; 703 case MV64340_PCI_1_MEMORY0_SIZE: 704 s->pci[1].mem_size[0] = val & 0xffffULL; 705 break; 706 case MV64340_PCI_1_MEMORY0_LOW_ADDR_REMAP: 707 case MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP: 708 mv64361_set_pci_mem_remap(s, 1, 0, val, 709 (addr == MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP)); 710 break; 711 case MV64340_PCI_1_MEMORY1_BASE_ADDR: 712 s->pci[1].mem_base[1] = val & 0x70fffffULL; 713 warn_swap_bit(val); 714 if (!(s->cpu_conf & BIT(27))) { 715 mv64361_set_pci_mem_remap(s, 1, 1, val, false); 716 } 717 break; 718 case MV64340_PCI_1_MEMORY1_SIZE: 719 s->pci[1].mem_size[1] = val & 0xffffULL; 720 break; 721 case MV64340_PCI_1_MEMORY1_LOW_ADDR_REMAP: 722 case MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP: 723 mv64361_set_pci_mem_remap(s, 1, 1, val, 724 (addr == MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP)); 725 break; 726 case MV64340_PCI_1_MEMORY2_BASE_ADDR: 727 s->pci[1].mem_base[2] = val & 0x70fffffULL; 728 warn_swap_bit(val); 729 if (!(s->cpu_conf & BIT(27))) { 730 mv64361_set_pci_mem_remap(s, 1, 2, val, false); 731 } 732 break; 733 case MV64340_PCI_1_MEMORY2_SIZE: 734 s->pci[1].mem_size[2] = val & 0xffffULL; 735 break; 736 case MV64340_PCI_1_MEMORY2_LOW_ADDR_REMAP: 737 case MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP: 738 mv64361_set_pci_mem_remap(s, 1, 2, val, 739 (addr == MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP)); 740 break; 741 case MV64340_PCI_1_MEMORY3_BASE_ADDR: 742 s->pci[1].mem_base[3] = val & 0x70fffffULL; 743 warn_swap_bit(val); 744 if (!(s->cpu_conf & BIT(27))) { 745 mv64361_set_pci_mem_remap(s, 1, 3, val, false); 746 } 747 break; 748 case MV64340_PCI_1_MEMORY3_SIZE: 749 s->pci[1].mem_size[3] = val & 0xffffULL; 750 break; 751 case MV64340_PCI_1_MEMORY3_LOW_ADDR_REMAP: 752 case MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP: 753 mv64361_set_pci_mem_remap(s, 1, 3, val, 754 (addr == MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP)); 755 break; 756 case MV64340_INTERNAL_SPACE_BASE_ADDR: 757 s->regs_base = val & 0xfffffULL; 758 break; 759 case MV64340_BASE_ADDR_ENABLE: 760 set_mem_windows(s, val); 761 break; 762 case MV64340_PCI_0_CONFIG_ADDR: 763 pci_host_conf_le_ops.write(PCI_HOST_BRIDGE(&s->pci[0]), 0, val, size); 764 break; 765 case MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG ... 766 MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG + 3: 767 pci_host_data_le_ops.write(PCI_HOST_BRIDGE(&s->pci[0]), 768 addr - MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG, val, size); 769 break; 770 case MV64340_PCI_1_CONFIG_ADDR: 771 pci_host_conf_le_ops.write(PCI_HOST_BRIDGE(&s->pci[1]), 0, val, size); 772 break; 773 case MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG ... 774 MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG + 3: 775 pci_host_data_le_ops.write(PCI_HOST_BRIDGE(&s->pci[1]), 776 addr - MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG, val, size); 777 break; 778 case MV64340_CPU_INTERRUPT0_MASK_LOW: 779 s->cpu0_int_mask &= 0xffffffff00000000ULL; 780 s->cpu0_int_mask |= val & 0xffffffffULL; 781 break; 782 case MV64340_CPU_INTERRUPT0_MASK_HIGH: 783 s->cpu0_int_mask &= 0xffffffffULL; 784 s->cpu0_int_mask |= val << 32; 785 break; 786 case MV64340_CUNIT_ARBITER_CONTROL_REG: 787 s->gpp_int_level = !!(val & BIT(10)); 788 break; 789 case MV64340_GPP_IO_CONTROL: 790 s->gpp_io = val; 791 break; 792 case MV64340_GPP_LEVEL_CONTROL: 793 s->gpp_level = val; 794 break; 795 case MV64340_GPP_VALUE: 796 s->gpp_value &= ~s->gpp_io; 797 s->gpp_value |= val & s->gpp_io; 798 break; 799 case MV64340_GPP_VALUE_SET: 800 s->gpp_value |= val & s->gpp_io; 801 break; 802 case MV64340_GPP_VALUE_CLEAR: 803 s->gpp_value &= ~(val & s->gpp_io); 804 break; 805 case MV64340_GPP_INTERRUPT_CAUSE: 806 if (!s->gpp_int_level && val != s->gpp_int_cr) { 807 int i; 808 uint32_t ch = s->gpp_int_cr ^ val; 809 s->gpp_int_cr = val; 810 for (i = 0; i < 4; i++) { 811 if ((ch & 0xff << i) && !(val & 0xff << i)) { 812 mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + i, 0); 813 } 814 } 815 } else { 816 s->gpp_int_cr = val; 817 } 818 break; 819 case MV64340_GPP_INTERRUPT_MASK0: 820 case MV64340_GPP_INTERRUPT_MASK1: 821 s->gpp_int_mask = val; 822 break; 823 default: 824 qemu_log_mask(LOG_UNIMP, "%s: Unimplemented register write 0x%" 825 HWADDR_PRIx " = %"PRIx64"\n", __func__, addr, val); 826 break; 827 } 828 } 829 830 static const MemoryRegionOps mv64361_ops = { 831 .read = mv64361_read, 832 .write = mv64361_write, 833 .valid.min_access_size = 1, 834 .valid.max_access_size = 4, 835 .endianness = DEVICE_LITTLE_ENDIAN, 836 }; 837 838 static void mv64361_gpp_irq(void *opaque, int n, int level) 839 { 840 MV64361State *s = opaque; 841 uint32_t mask = BIT(n); 842 uint32_t val = s->gpp_value & ~mask; 843 844 if (s->gpp_level & mask) { 845 level = !level; 846 } 847 val |= level << n; 848 if (val > s->gpp_value) { 849 s->gpp_value = val; 850 s->gpp_int_cr |= mask; 851 if (s->gpp_int_mask & mask) { 852 mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + n / 8, 1); 853 } 854 } else if (val < s->gpp_value) { 855 int b = n / 8; 856 s->gpp_value = val; 857 if (s->gpp_int_level && !(val & 0xff << b)) { 858 mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + b, 0); 859 } 860 } 861 } 862 863 static void mv64361_realize(DeviceState *dev, Error **errp) 864 { 865 MV64361State *s = MV64361(dev); 866 int i; 867 868 s->base_addr_enable = 0x1fffff; 869 memory_region_init_io(&s->regs, OBJECT(s), &mv64361_ops, s, 870 TYPE_MV64361, 0x10000); 871 sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->regs); 872 for (i = 0; i < 2; i++) { 873 g_autofree char *name = g_strdup_printf("pcihost%d", i); 874 object_initialize_child(OBJECT(dev), name, &s->pci[i], 875 TYPE_MV64361_PCI); 876 DeviceState *pci = DEVICE(&s->pci[i]); 877 qdev_prop_set_uint8(pci, "index", i); 878 sysbus_realize_and_unref(SYS_BUS_DEVICE(pci), &error_fatal); 879 } 880 sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->cpu_irq); 881 qdev_init_gpio_in_named(dev, mv64361_gpp_irq, "gpp", 32); 882 } 883 884 static void mv64361_reset(DeviceState *dev) 885 { 886 MV64361State *s = MV64361(dev); 887 int i, j; 888 889 /* 890 * These values may be board specific 891 * Real chip supports init from an eprom but that's not modelled 892 */ 893 set_mem_windows(s, 0x1fffff); 894 s->cpu_conf = 0x28000ff; 895 s->regs_base = 0x100f100; 896 s->pci[0].io_base = 0x100f800; 897 s->pci[0].io_size = 0xff; 898 s->pci[0].mem_base[0] = 0x100c000; 899 s->pci[0].mem_size[0] = 0x1fff; 900 s->pci[0].mem_base[1] = 0x100f900; 901 s->pci[0].mem_size[1] = 0xff; 902 s->pci[0].mem_base[2] = 0x100f400; 903 s->pci[0].mem_size[2] = 0x1ff; 904 s->pci[0].mem_base[3] = 0x100f600; 905 s->pci[0].mem_size[3] = 0x1ff; 906 s->pci[1].io_base = 0x100fe00; 907 s->pci[1].io_size = 0xff; 908 s->pci[1].mem_base[0] = 0x1008000; 909 s->pci[1].mem_size[0] = 0x3fff; 910 s->pci[1].mem_base[1] = 0x100fd00; 911 s->pci[1].mem_size[1] = 0xff; 912 s->pci[1].mem_base[2] = 0x1002600; 913 s->pci[1].mem_size[2] = 0x1ff; 914 s->pci[1].mem_base[3] = 0x100ff80; 915 s->pci[1].mem_size[3] = 0x7f; 916 for (i = 0; i < 2; i++) { 917 for (j = 0; j < 4; j++) { 918 s->pci[i].remap[j] = s->pci[i].mem_base[j] << 16; 919 } 920 } 921 s->pci[0].remap[1] = 0; 922 s->pci[1].remap[1] = 0; 923 set_mem_windows(s, 0xfbfff); 924 } 925 926 static void mv64361_class_init(ObjectClass *klass, void *data) 927 { 928 DeviceClass *dc = DEVICE_CLASS(klass); 929 930 dc->realize = mv64361_realize; 931 device_class_set_legacy_reset(dc, mv64361_reset); 932 } 933 934 static const TypeInfo mv64361_type_info = { 935 .name = TYPE_MV64361, 936 .parent = TYPE_SYS_BUS_DEVICE, 937 .instance_size = sizeof(MV64361State), 938 .class_init = mv64361_class_init, 939 }; 940 941 static void mv64361_register_types(void) 942 { 943 type_register_static(&mv64361_type_info); 944 } 945 946 type_init(mv64361_register_types) 947