hw/pci-host/uninorth.c

   1 /*
   2  * QEMU Uninorth PCI host (for all Mac99 and newer machines)
   3  *
   4  * Copyright (c) 2006 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "qemu/osdep.h"
  25 #include "hw/hw.h"
  26 #include "hw/ppc/mac.h"
  27 #include "hw/pci/pci.h"
  28 #include "hw/pci/pci_host.h"
  29
  30 /* debug UniNorth */
  31 //#define DEBUG_UNIN
  32
  33 #ifdef DEBUG_UNIN
  34 #define UNIN_DPRINTF(fmt, ...)                                  \
  35     do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
  36 #else
  37 #define UNIN_DPRINTF(fmt, ...)
  38 #endif
  39
  40 static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e };
  41
  42 #define TYPE_UNI_NORTH_PCI_HOST_BRIDGE "uni-north-pci-pcihost"
  43 #define TYPE_UNI_NORTH_AGP_HOST_BRIDGE "uni-north-agp-pcihost"
  44 #define TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE "uni-north-internal-pci-pcihost"
  45 #define TYPE_U3_AGP_HOST_BRIDGE "u3-agp-pcihost"
  46
  47 #define UNI_NORTH_PCI_HOST_BRIDGE(obj) \
  48     OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_PCI_HOST_BRIDGE)
  49 #define UNI_NORTH_AGP_HOST_BRIDGE(obj) \
  50     OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_AGP_HOST_BRIDGE)
  51 #define UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE(obj) \
  52     OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE)
  53 #define U3_AGP_HOST_BRIDGE(obj) \
  54     OBJECT_CHECK(UNINState, (obj), TYPE_U3_AGP_HOST_BRIDGE)
  55
  56 typedef struct UNINState {
  57     PCIHostState parent_obj;
  58
  59     MemoryRegion pci_mmio;
  60     MemoryRegion pci_hole;
  61 } UNINState;
  62
  63 static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
  64 {
  65     return (irq_num + (pci_dev->devfn >> 3)) & 3;
  66 }
  67
  68 static void pci_unin_set_irq(void *opaque, int irq_num, int level)
  69 {
  70     qemu_irq *pic = opaque;
  71
  72     UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
  73                  unin_irq_line[irq_num], level);
  74     qemu_set_irq(pic[unin_irq_line[irq_num]], level);
  75 }
  76
  77 static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
  78 {
  79     uint32_t retval;
  80
  81     if (reg & (1u << 31)) {
  82         /* XXX OpenBIOS compatibility hack */
  83         retval = reg | (addr & 3);
  84     } else if (reg & 1) {
  85         /* CFA1 style */
  86         retval = (reg & ~7u) | (addr & 7);
  87     } else {
  88         uint32_t slot, func;
  89
  90         /* Grab CFA0 style values */
  91         slot = ctz32(reg & 0xfffff800);
  92         if (slot == 32) {
  93             slot = -1; /* XXX: should this be 0? */
  94         }
  95         func = (reg >> 8) & 7;
  96
  97         /* ... and then convert them to x86 format */
  98         /* config pointer */
  99         retval = (reg & (0xff - 7)) | (addr & 7);
 100         /* slot */
 101         retval |= slot << 11;
 102         /* fn */
 103         retval |= func << 8;
 104     }
 105
 106
 107     UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
 108                  reg, addr, retval);
 109
 110     return retval;
 111 }
 112
 113 static void unin_data_write(void *opaque, hwaddr addr,
 114                             uint64_t val, unsigned len)
 115 {
 116     UNINState *s = opaque;
 117     PCIHostState *phb = PCI_HOST_BRIDGE(s);
 118     UNIN_DPRINTF("write addr " TARGET_FMT_plx " len %d val %"PRIx64"\n",
 119                  addr, len, val);
 120     pci_data_write(phb->bus,
 121                    unin_get_config_reg(phb->config_reg, addr),
 122                    val, len);
 123 }
 124
 125 static uint64_t unin_data_read(void *opaque, hwaddr addr,
 126                                unsigned len)
 127 {
 128     UNINState *s = opaque;
 129     PCIHostState *phb = PCI_HOST_BRIDGE(s);
 130     uint32_t val;
 131
 132     val = pci_data_read(phb->bus,
 133                         unin_get_config_reg(phb->config_reg, addr),
 134                         len);
 135     UNIN_DPRINTF("read addr " TARGET_FMT_plx " len %d val %x\n",
 136                  addr, len, val);
 137     return val;
 138 }
 139
 140 static const MemoryRegionOps unin_data_ops = {
 141     .read = unin_data_read,
 142     .write = unin_data_write,
 143     .endianness = DEVICE_LITTLE_ENDIAN,
 144 };
 145
 146 static int pci_unin_main_init_device(SysBusDevice *dev)
 147 {
 148     PCIHostState *h;
 149
 150     /* Use values found on a real PowerMac */
 151     /* Uninorth main bus */
 152     h = PCI_HOST_BRIDGE(dev);
 153
 154     memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
 155                           dev, "pci-conf-idx", 0x1000);
 156     memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, dev,
 157                           "pci-conf-data", 0x1000);
 158     sysbus_init_mmio(dev, &h->conf_mem);
 159     sysbus_init_mmio(dev, &h->data_mem);
 160
 161     return 0;
 162 }
 163
 164
 165 static int pci_u3_agp_init_device(SysBusDevice *dev)
 166 {
 167     PCIHostState *h;
 168
 169     /* Uninorth U3 AGP bus */
 170     h = PCI_HOST_BRIDGE(dev);
 171
 172     memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
 173                           dev, "pci-conf-idx", 0x1000);
 174     memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, dev,
 175                           "pci-conf-data", 0x1000);
 176     sysbus_init_mmio(dev, &h->conf_mem);
 177     sysbus_init_mmio(dev, &h->data_mem);
 178
 179     return 0;
 180 }
 181
 182 static int pci_unin_agp_init_device(SysBusDevice *dev)
 183 {
 184     PCIHostState *h;
 185
 186     /* Uninorth AGP bus */
 187     h = PCI_HOST_BRIDGE(dev);
 188
 189     memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
 190                           dev, "pci-conf-idx", 0x1000);
 191     memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops,
 192                           dev, "pci-conf-data", 0x1000);
 193     sysbus_init_mmio(dev, &h->conf_mem);
 194     sysbus_init_mmio(dev, &h->data_mem);
 195     return 0;
 196 }
 197
 198 static int pci_unin_internal_init_device(SysBusDevice *dev)
 199 {
 200     PCIHostState *h;
 201
 202     /* Uninorth internal bus */
 203     h = PCI_HOST_BRIDGE(dev);
 204
 205     memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
 206                           dev, "pci-conf-idx", 0x1000);
 207     memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops,
 208                           dev, "pci-conf-data", 0x1000);
 209     sysbus_init_mmio(dev, &h->conf_mem);
 210     sysbus_init_mmio(dev, &h->data_mem);
 211     return 0;
 212 }
 213
 214 PCIBus *pci_pmac_init(qemu_irq *pic,
 215                       MemoryRegion *address_space_mem,
 216                       MemoryRegion *address_space_io)
 217 {
 218     DeviceState *dev;
 219     SysBusDevice *s;
 220     PCIHostState *h;
 221     UNINState *d;
 222
 223     /* Use values found on a real PowerMac */
 224     /* Uninorth main bus */
 225     dev = qdev_create(NULL, TYPE_UNI_NORTH_PCI_HOST_BRIDGE);
 226     qdev_init_nofail(dev);
 227     s = SYS_BUS_DEVICE(dev);
 228     h = PCI_HOST_BRIDGE(s);
 229     d = UNI_NORTH_PCI_HOST_BRIDGE(dev);
 230     memory_region_init(&d->pci_mmio, OBJECT(d), "pci-mmio", 0x100000000ULL);
 231     memory_region_init_alias(&d->pci_hole, OBJECT(d), "pci-hole", &d->pci_mmio,
 232                              0x80000000ULL, 0x10000000ULL);
 233     memory_region_add_subregion(address_space_mem, 0x80000000ULL,
 234                                 &d->pci_hole);
 235
 236     h->bus = pci_register_bus(dev, NULL,
 237                               pci_unin_set_irq, pci_unin_map_irq,
 238                               pic,
 239                               &d->pci_mmio,
 240                               address_space_io,
 241                               PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
 242
 243 #if 0
 244     pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north");
 245 #endif
 246
 247     sysbus_mmio_map(s, 0, 0xf2800000);
 248     sysbus_mmio_map(s, 1, 0xf2c00000);
 249
 250     /* DEC 21154 bridge */
 251 #if 0
 252     /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
 253     pci_create_simple(h->bus, PCI_DEVFN(12, 0), "dec-21154");
 254 #endif
 255
 256     /* Uninorth AGP bus */
 257     pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north-agp");
 258     dev = qdev_create(NULL, TYPE_UNI_NORTH_AGP_HOST_BRIDGE);
 259     qdev_init_nofail(dev);
 260     s = SYS_BUS_DEVICE(dev);
 261     sysbus_mmio_map(s, 0, 0xf0800000);
 262     sysbus_mmio_map(s, 1, 0xf0c00000);
 263
 264     /* Uninorth internal bus */
 265 #if 0
 266     /* XXX: not needed for now */
 267     pci_create_simple(h->bus, PCI_DEVFN(14, 0),
 268                       "uni-north-internal-pci");
 269     dev = qdev_create(NULL, TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE);
 270     qdev_init_nofail(dev);
 271     s = SYS_BUS_DEVICE(dev);
 272     sysbus_mmio_map(s, 0, 0xf4800000);
 273     sysbus_mmio_map(s, 1, 0xf4c00000);
 274 #endif
 275
 276     return h->bus;
 277 }
 278
 279 PCIBus *pci_pmac_u3_init(qemu_irq *pic,
 280                          MemoryRegion *address_space_mem,
 281                          MemoryRegion *address_space_io)
 282 {
 283     DeviceState *dev;
 284     SysBusDevice *s;
 285     PCIHostState *h;
 286     UNINState *d;
 287
 288     /* Uninorth AGP bus */
 289
 290     dev = qdev_create(NULL, TYPE_U3_AGP_HOST_BRIDGE);
 291     qdev_init_nofail(dev);
 292     s = SYS_BUS_DEVICE(dev);
 293     h = PCI_HOST_BRIDGE(dev);
 294     d = U3_AGP_HOST_BRIDGE(dev);
 295
 296     memory_region_init(&d->pci_mmio, OBJECT(d), "pci-mmio", 0x100000000ULL);
 297     memory_region_init_alias(&d->pci_hole, OBJECT(d), "pci-hole", &d->pci_mmio,
 298                              0x80000000ULL, 0x70000000ULL);
 299     memory_region_add_subregion(address_space_mem, 0x80000000ULL,
 300                                 &d->pci_hole);
 301
 302     h->bus = pci_register_bus(dev, NULL,
 303                               pci_unin_set_irq, pci_unin_map_irq,
 304                               pic,
 305                               &d->pci_mmio,
 306                               address_space_io,
 307                               PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
 308
 309     sysbus_mmio_map(s, 0, 0xf0800000);
 310     sysbus_mmio_map(s, 1, 0xf0c00000);
 311
 312     pci_create_simple(h->bus, 11 << 3, "u3-agp");
 313
 314     return h->bus;
 315 }
 316
 317 static void unin_main_pci_host_realize(PCIDevice *d, Error **errp)
 318 {
 319     d->config[0x0C] = 0x08; // cache_line_size
 320     d->config[0x0D] = 0x10; // latency_timer
 321     d->config[0x34] = 0x00; // capabilities_pointer
 322 }
 323
 324 static void unin_agp_pci_host_realize(PCIDevice *d, Error **errp)
 325 {
 326     d->config[0x0C] = 0x08; // cache_line_size
 327     d->config[0x0D] = 0x10; // latency_timer
 328     //    d->config[0x34] = 0x80; // capabilities_pointer
 329     /*
 330      * Set kMacRISCPCIAddressSelect (0x48) register to indicate PCI
 331      * memory space with base 0x80000000, size 0x10000000 for Apple's
 332      * AppleMacRiscPCI driver
 333      */
 334     d->config[0x48] = 0x0;
 335     d->config[0x49] = 0x0;
 336     d->config[0x4a] = 0x0;
 337     d->config[0x4b] = 0x1;
 338 }
 339
 340 static void u3_agp_pci_host_realize(PCIDevice *d, Error **errp)
 341 {
 342     /* cache line size */
 343     d->config[0x0C] = 0x08;
 344     /* latency timer */
 345     d->config[0x0D] = 0x10;
 346 }
 347
 348 static void unin_internal_pci_host_realize(PCIDevice *d, Error **errp)
 349 {
 350     d->config[0x0C] = 0x08; // cache_line_size
 351     d->config[0x0D] = 0x10; // latency_timer
 352     d->config[0x34] = 0x00; // capabilities_pointer
 353 }
 354
 355 static void unin_main_pci_host_class_init(ObjectClass *klass, void *data)
 356 {
 357     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 358     DeviceClass *dc = DEVICE_CLASS(klass);
 359
 360     k->realize   = unin_main_pci_host_realize;
 361     k->vendor_id = PCI_VENDOR_ID_APPLE;
 362     k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_PCI;
 363     k->revision  = 0x00;
 364     k->class_id  = PCI_CLASS_BRIDGE_HOST;
 365     /*
 366      * PCI-facing part of the host bridge, not usable without the
 367      * host-facing part, which can't be device_add'ed, yet.
 368      */
 369     dc->user_creatable = false;
 370 }
 371
 372 static const TypeInfo unin_main_pci_host_info = {
 373     .name = "uni-north-pci",
 374     .parent = TYPE_PCI_DEVICE,
 375     .instance_size = sizeof(PCIDevice),
 376     .class_init = unin_main_pci_host_class_init,
 377 };
 378
 379 static void u3_agp_pci_host_class_init(ObjectClass *klass, void *data)
 380 {
 381     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 382     DeviceClass *dc = DEVICE_CLASS(klass);
 383
 384     k->realize   = u3_agp_pci_host_realize;
 385     k->vendor_id = PCI_VENDOR_ID_APPLE;
 386     k->device_id = PCI_DEVICE_ID_APPLE_U3_AGP;
 387     k->revision  = 0x00;
 388     k->class_id  = PCI_CLASS_BRIDGE_HOST;
 389     /*
 390      * PCI-facing part of the host bridge, not usable without the
 391      * host-facing part, which can't be device_add'ed, yet.
 392      */
 393     dc->user_creatable = false;
 394 }
 395
 396 static const TypeInfo u3_agp_pci_host_info = {
 397     .name = "u3-agp",
 398     .parent = TYPE_PCI_DEVICE,
 399     .instance_size = sizeof(PCIDevice),
 400     .class_init = u3_agp_pci_host_class_init,
 401 };
 402
 403 static void unin_agp_pci_host_class_init(ObjectClass *klass, void *data)
 404 {
 405     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 406     DeviceClass *dc = DEVICE_CLASS(klass);
 407
 408     k->realize   = unin_agp_pci_host_realize;
 409     k->vendor_id = PCI_VENDOR_ID_APPLE;
 410     k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP;
 411     k->revision  = 0x00;
 412     k->class_id  = PCI_CLASS_BRIDGE_HOST;
 413     /*
 414      * PCI-facing part of the host bridge, not usable without the
 415      * host-facing part, which can't be device_add'ed, yet.
 416      */
 417     dc->user_creatable = false;
 418 }
 419
 420 static const TypeInfo unin_agp_pci_host_info = {
 421     .name = "uni-north-agp",
 422     .parent = TYPE_PCI_DEVICE,
 423     .instance_size = sizeof(PCIDevice),
 424     .class_init = unin_agp_pci_host_class_init,
 425 };
 426
 427 static void unin_internal_pci_host_class_init(ObjectClass *klass, void *data)
 428 {
 429     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 430     DeviceClass *dc = DEVICE_CLASS(klass);
 431
 432     k->realize   = unin_internal_pci_host_realize;
 433     k->vendor_id = PCI_VENDOR_ID_APPLE;
 434     k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_I_PCI;
 435     k->revision  = 0x00;
 436     k->class_id  = PCI_CLASS_BRIDGE_HOST;
 437     /*
 438      * PCI-facing part of the host bridge, not usable without the
 439      * host-facing part, which can't be device_add'ed, yet.
 440      */
 441     dc->user_creatable = false;
 442 }
 443
 444 static const TypeInfo unin_internal_pci_host_info = {
 445     .name = "uni-north-internal-pci",
 446     .parent = TYPE_PCI_DEVICE,
 447     .instance_size = sizeof(PCIDevice),
 448     .class_init = unin_internal_pci_host_class_init,
 449 };
 450
 451 static void pci_unin_main_class_init(ObjectClass *klass, void *data)
 452 {
 453     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 454     DeviceClass *dc = DEVICE_CLASS(klass);
 455
 456     sbc->init = pci_unin_main_init_device;
 457     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 458 }
 459
 460 static const TypeInfo pci_unin_main_info = {
 461     .name          = TYPE_UNI_NORTH_PCI_HOST_BRIDGE,
 462     .parent        = TYPE_PCI_HOST_BRIDGE,
 463     .instance_size = sizeof(UNINState),
 464     .class_init    = pci_unin_main_class_init,
 465 };
 466
 467 static void pci_u3_agp_class_init(ObjectClass *klass, void *data)
 468 {
 469     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 470     DeviceClass *dc = DEVICE_CLASS(klass);
 471
 472     sbc->init = pci_u3_agp_init_device;
 473     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 474 }
 475
 476 static const TypeInfo pci_u3_agp_info = {
 477     .name          = TYPE_U3_AGP_HOST_BRIDGE,
 478     .parent        = TYPE_PCI_HOST_BRIDGE,
 479     .instance_size = sizeof(UNINState),
 480     .class_init    = pci_u3_agp_class_init,
 481 };
 482
 483 static void pci_unin_agp_class_init(ObjectClass *klass, void *data)
 484 {
 485     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 486     DeviceClass *dc = DEVICE_CLASS(klass);
 487
 488     sbc->init = pci_unin_agp_init_device;
 489     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 490 }
 491
 492 static const TypeInfo pci_unin_agp_info = {
 493     .name          = TYPE_UNI_NORTH_AGP_HOST_BRIDGE,
 494     .parent        = TYPE_PCI_HOST_BRIDGE,
 495     .instance_size = sizeof(UNINState),
 496     .class_init    = pci_unin_agp_class_init,
 497 };
 498
 499 static void pci_unin_internal_class_init(ObjectClass *klass, void *data)
 500 {
 501     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 502     DeviceClass *dc = DEVICE_CLASS(klass);
 503
 504     sbc->init = pci_unin_internal_init_device;
 505     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 506 }
 507
 508 static const TypeInfo pci_unin_internal_info = {
 509     .name          = TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE,
 510     .parent        = TYPE_PCI_HOST_BRIDGE,
 511     .instance_size = sizeof(UNINState),
 512     .class_init    = pci_unin_internal_class_init,
 513 };
 514
 515 static void unin_register_types(void)
 516 {
 517     type_register_static(&unin_main_pci_host_info);
 518     type_register_static(&u3_agp_pci_host_info);
 519     type_register_static(&unin_agp_pci_host_info);
 520     type_register_static(&unin_internal_pci_host_info);
 521
 522     type_register_static(&pci_unin_main_info);
 523     type_register_static(&pci_u3_agp_info);
 524     type_register_static(&pci_unin_agp_info);
 525     type_register_static(&pci_unin_internal_info);
 526 }
 527
 528 type_init(unin_register_types)