hw/unin_pci.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 "hw.h"
  25 #include "ppc/mac.h"
  26 #include "pci/pci.h"
  27 #include "pci/pci_host.h"
  28
  29 /* debug UniNorth */
  30 //#define DEBUG_UNIN
  31
  32 #ifdef DEBUG_UNIN
  33 #define UNIN_DPRINTF(fmt, ...)                                  \
  34     do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
  35 #else
  36 #define UNIN_DPRINTF(fmt, ...)
  37 #endif
  38
  39 static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e };
  40
  41 #define TYPE_UNI_NORTH_PCI_HOST_BRIDGE "uni-north-pci-pcihost"
  42 #define TYPE_UNI_NORTH_AGP_HOST_BRIDGE "uni-north-agp-pcihost"
  43 #define TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE "uni-north-internal-pci-pcihost"
  44 #define TYPE_U3_AGP_HOST_BRIDGE "u3-agp-pcihost"
  45
  46 #define UNI_NORTH_PCI_HOST_BRIDGE(obj) \
  47     OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_PCI_HOST_BRIDGE)
  48 #define UNI_NORTH_AGP_HOST_BRIDGE(obj) \
  49     OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_AGP_HOST_BRIDGE)
  50 #define UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE(obj) \
  51     OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE)
  52 #define U3_AGP_HOST_BRIDGE(obj) \
  53     OBJECT_CHECK(UNINState, (obj), TYPE_U3_AGP_HOST_BRIDGE)
  54
  55 typedef struct UNINState {
  56     PCIHostState parent_obj;
  57
  58     MemoryRegion pci_mmio;
  59     MemoryRegion pci_hole;
  60 } UNINState;
  61
  62 static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
  63 {
  64     int retval;
  65     int devfn = pci_dev->devfn & 0x00FFFFFF;
  66
  67     retval = (((devfn >> 11) & 0x1F) + irq_num) & 3;
  68
  69     return retval;
  70 }
  71
  72 static void pci_unin_set_irq(void *opaque, int irq_num, int level)
  73 {
  74     qemu_irq *pic = opaque;
  75
  76     UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
  77                  unin_irq_line[irq_num], level);
  78     qemu_set_irq(pic[unin_irq_line[irq_num]], level);
  79 }
  80
  81 static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
  82 {
  83     uint32_t retval;
  84
  85     if (reg & (1u << 31)) {
  86         /* XXX OpenBIOS compatibility hack */
  87         retval = reg | (addr & 3);
  88     } else if (reg & 1) {
  89         /* CFA1 style */
  90         retval = (reg & ~7u) | (addr & 7);
  91     } else {
  92         uint32_t slot, func;
  93
  94         /* Grab CFA0 style values */
  95         slot = ffs(reg & 0xfffff800) - 1;
  96         func = (reg >> 8) & 7;
  97
  98         /* ... and then convert them to x86 format */
  99         /* config pointer */
 100         retval = (reg & (0xff - 7)) | (addr & 7);
 101         /* slot */
 102         retval |= slot << 11;
 103         /* fn */
 104         retval |= func << 8;
 105     }
 106
 107
 108     UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
 109                  reg, addr, retval);
 110
 111     return retval;
 112 }
 113
 114 static void unin_data_write(void *opaque, hwaddr addr,
 115                             uint64_t val, unsigned len)
 116 {
 117     UNINState *s = opaque;
 118     PCIHostState *phb = PCI_HOST_BRIDGE(s);
 119     UNIN_DPRINTF("write addr %" TARGET_FMT_plx " len %d val %"PRIx64"\n",
 120                  addr, len, val);
 121     pci_data_write(phb->bus,
 122                    unin_get_config_reg(phb->config_reg, addr),
 123                    val, len);
 124 }
 125
 126 static uint64_t unin_data_read(void *opaque, hwaddr addr,
 127                                unsigned len)
 128 {
 129     UNINState *s = opaque;
 130     PCIHostState *phb = PCI_HOST_BRIDGE(s);
 131     uint32_t val;
 132
 133     val = pci_data_read(phb->bus,
 134                         unin_get_config_reg(phb->config_reg, addr),
 135                         len);
 136     UNIN_DPRINTF("read addr %" TARGET_FMT_plx " len %d val %x\n",
 137                  addr, len, val);
 138     return val;
 139 }
 140
 141 static const MemoryRegionOps unin_data_ops = {
 142     .read = unin_data_read,
 143     .write = unin_data_write,
 144     .endianness = DEVICE_LITTLE_ENDIAN,
 145 };
 146
 147 static int pci_unin_main_init_device(SysBusDevice *dev)
 148 {
 149     PCIHostState *h;
 150
 151     /* Use values found on a real PowerMac */
 152     /* Uninorth main bus */
 153     h = PCI_HOST_BRIDGE(dev);
 154
 155     memory_region_init_io(&h->conf_mem, &pci_host_conf_le_ops,
 156                           dev, "pci-conf-idx", 0x1000);
 157     memory_region_init_io(&h->data_mem, &unin_data_ops, dev,
 158                           "pci-conf-data", 0x1000);
 159     sysbus_init_mmio(dev, &h->conf_mem);
 160     sysbus_init_mmio(dev, &h->data_mem);
 161
 162     return 0;
 163 }
 164
 165
 166 static int pci_u3_agp_init_device(SysBusDevice *dev)
 167 {
 168     PCIHostState *h;
 169
 170     /* Uninorth U3 AGP bus */
 171     h = PCI_HOST_BRIDGE(dev);
 172
 173     memory_region_init_io(&h->conf_mem, &pci_host_conf_le_ops,
 174                           dev, "pci-conf-idx", 0x1000);
 175     memory_region_init_io(&h->data_mem, &unin_data_ops, dev,
 176                           "pci-conf-data", 0x1000);
 177     sysbus_init_mmio(dev, &h->conf_mem);
 178     sysbus_init_mmio(dev, &h->data_mem);
 179
 180     return 0;
 181 }
 182
 183 static int pci_unin_agp_init_device(SysBusDevice *dev)
 184 {
 185     PCIHostState *h;
 186
 187     /* Uninorth AGP bus */
 188     h = PCI_HOST_BRIDGE(dev);
 189
 190     memory_region_init_io(&h->conf_mem, &pci_host_conf_le_ops,
 191                           dev, "pci-conf-idx", 0x1000);
 192     memory_region_init_io(&h->data_mem, &pci_host_data_le_ops,
 193                           dev, "pci-conf-data", 0x1000);
 194     sysbus_init_mmio(dev, &h->conf_mem);
 195     sysbus_init_mmio(dev, &h->data_mem);
 196     return 0;
 197 }
 198
 199 static int pci_unin_internal_init_device(SysBusDevice *dev)
 200 {
 201     PCIHostState *h;
 202
 203     /* Uninorth internal bus */
 204     h = PCI_HOST_BRIDGE(dev);
 205
 206     memory_region_init_io(&h->conf_mem, &pci_host_conf_le_ops,
 207                           dev, "pci-conf-idx", 0x1000);
 208     memory_region_init_io(&h->data_mem, &pci_host_data_le_ops,
 209                           dev, "pci-conf-data", 0x1000);
 210     sysbus_init_mmio(dev, &h->conf_mem);
 211     sysbus_init_mmio(dev, &h->data_mem);
 212     return 0;
 213 }
 214
 215 PCIBus *pci_pmac_init(qemu_irq *pic,
 216                       MemoryRegion *address_space_mem,
 217                       MemoryRegion *address_space_io)
 218 {
 219     DeviceState *dev;
 220     SysBusDevice *s;
 221     PCIHostState *h;
 222     UNINState *d;
 223
 224     /* Use values found on a real PowerMac */
 225     /* Uninorth main bus */
 226     dev = qdev_create(NULL, TYPE_UNI_NORTH_PCI_HOST_BRIDGE);
 227     qdev_init_nofail(dev);
 228     s = SYS_BUS_DEVICE(dev);
 229     h = PCI_HOST_BRIDGE(s);
 230     d = UNI_NORTH_PCI_HOST_BRIDGE(dev);
 231     memory_region_init(&d->pci_mmio, "pci-mmio", 0x100000000ULL);
 232     memory_region_init_alias(&d->pci_hole, "pci-hole", &d->pci_mmio,
 233                              0x80000000ULL, 0x70000000ULL);
 234     memory_region_add_subregion(address_space_mem, 0x80000000ULL,
 235                                 &d->pci_hole);
 236
 237     h->bus = pci_register_bus(dev, "pci",
 238                               pci_unin_set_irq, pci_unin_map_irq,
 239                               pic,
 240                               &d->pci_mmio,
 241                               address_space_io,
 242                               PCI_DEVFN(11, 0), 4);
 243
 244 #if 0
 245     pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north");
 246 #endif
 247
 248     sysbus_mmio_map(s, 0, 0xf2800000);
 249     sysbus_mmio_map(s, 1, 0xf2c00000);
 250
 251     /* DEC 21154 bridge */
 252 #if 0
 253     /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
 254     pci_create_simple(h->bus, PCI_DEVFN(12, 0), "dec-21154");
 255 #endif
 256
 257     /* Uninorth AGP bus */
 258     pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north-agp");
 259     dev = qdev_create(NULL, TYPE_UNI_NORTH_AGP_HOST_BRIDGE);
 260     qdev_init_nofail(dev);
 261     s = SYS_BUS_DEVICE(dev);
 262     sysbus_mmio_map(s, 0, 0xf0800000);
 263     sysbus_mmio_map(s, 1, 0xf0c00000);
 264
 265     /* Uninorth internal bus */
 266 #if 0
 267     /* XXX: not needed for now */
 268     pci_create_simple(h->bus, PCI_DEVFN(14, 0),
 269                       "uni-north-internal-pci");
 270     dev = qdev_create(NULL, TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE);
 271     qdev_init_nofail(dev);
 272     s = SYS_BUS_DEVICE(dev);
 273     sysbus_mmio_map(s, 0, 0xf4800000);
 274     sysbus_mmio_map(s, 1, 0xf4c00000);
 275 #endif
 276
 277     return h->bus;
 278 }
 279
 280 PCIBus *pci_pmac_u3_init(qemu_irq *pic,
 281                          MemoryRegion *address_space_mem,
 282                          MemoryRegion *address_space_io)
 283 {
 284     DeviceState *dev;
 285     SysBusDevice *s;
 286     PCIHostState *h;
 287     UNINState *d;
 288
 289     /* Uninorth AGP bus */
 290
 291     dev = qdev_create(NULL, TYPE_U3_AGP_HOST_BRIDGE);
 292     qdev_init_nofail(dev);
 293     s = SYS_BUS_DEVICE(dev);
 294     h = PCI_HOST_BRIDGE(dev);
 295     d = U3_AGP_HOST_BRIDGE(dev);
 296
 297     memory_region_init(&d->pci_mmio, "pci-mmio", 0x100000000ULL);
 298     memory_region_init_alias(&d->pci_hole, "pci-hole", &d->pci_mmio,
 299                              0x80000000ULL, 0x70000000ULL);
 300     memory_region_add_subregion(address_space_mem, 0x80000000ULL,
 301                                 &d->pci_hole);
 302
 303     h->bus = pci_register_bus(dev, "pci",
 304                               pci_unin_set_irq, pci_unin_map_irq,
 305                               pic,
 306                               &d->pci_mmio,
 307                               address_space_io,
 308                               PCI_DEVFN(11, 0), 4);
 309
 310     sysbus_mmio_map(s, 0, 0xf0800000);
 311     sysbus_mmio_map(s, 1, 0xf0c00000);
 312
 313     pci_create_simple(h->bus, 11 << 3, "u3-agp");
 314
 315     return h->bus;
 316 }
 317
 318 static int unin_main_pci_host_init(PCIDevice *d)
 319 {
 320     d->config[0x0C] = 0x08; // cache_line_size
 321     d->config[0x0D] = 0x10; // latency_timer
 322     d->config[0x34] = 0x00; // capabilities_pointer
 323     return 0;
 324 }
 325
 326 static int unin_agp_pci_host_init(PCIDevice *d)
 327 {
 328     d->config[0x0C] = 0x08; // cache_line_size
 329     d->config[0x0D] = 0x10; // latency_timer
 330     //    d->config[0x34] = 0x80; // capabilities_pointer
 331     return 0;
 332 }
 333
 334 static int u3_agp_pci_host_init(PCIDevice *d)
 335 {
 336     /* cache line size */
 337     d->config[0x0C] = 0x08;
 338     /* latency timer */
 339     d->config[0x0D] = 0x10;
 340     return 0;
 341 }
 342
 343 static int unin_internal_pci_host_init(PCIDevice *d)
 344 {
 345     d->config[0x0C] = 0x08; // cache_line_size
 346     d->config[0x0D] = 0x10; // latency_timer
 347     d->config[0x34] = 0x00; // capabilities_pointer
 348     return 0;
 349 }
 350
 351 static void unin_main_pci_host_class_init(ObjectClass *klass, void *data)
 352 {
 353     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 354
 355     k->init      = unin_main_pci_host_init;
 356     k->vendor_id = PCI_VENDOR_ID_APPLE;
 357     k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_PCI;
 358     k->revision  = 0x00;
 359     k->class_id  = PCI_CLASS_BRIDGE_HOST;
 360 }
 361
 362 static const TypeInfo unin_main_pci_host_info = {
 363     .name = "uni-north-pci",
 364     .parent = TYPE_PCI_DEVICE,
 365     .instance_size = sizeof(PCIDevice),
 366     .class_init = unin_main_pci_host_class_init,
 367 };
 368
 369 static void u3_agp_pci_host_class_init(ObjectClass *klass, void *data)
 370 {
 371     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 372
 373     k->init      = u3_agp_pci_host_init;
 374     k->vendor_id = PCI_VENDOR_ID_APPLE;
 375     k->device_id = PCI_DEVICE_ID_APPLE_U3_AGP;
 376     k->revision  = 0x00;
 377     k->class_id  = PCI_CLASS_BRIDGE_HOST;
 378 }
 379
 380 static const TypeInfo u3_agp_pci_host_info = {
 381     .name = "u3-agp",
 382     .parent = TYPE_PCI_DEVICE,
 383     .instance_size = sizeof(PCIDevice),
 384     .class_init = u3_agp_pci_host_class_init,
 385 };
 386
 387 static void unin_agp_pci_host_class_init(ObjectClass *klass, void *data)
 388 {
 389     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 390
 391     k->init      = unin_agp_pci_host_init;
 392     k->vendor_id = PCI_VENDOR_ID_APPLE;
 393     k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP;
 394     k->revision  = 0x00;
 395     k->class_id  = PCI_CLASS_BRIDGE_HOST;
 396 }
 397
 398 static const TypeInfo unin_agp_pci_host_info = {
 399     .name = "uni-north-agp",
 400     .parent = TYPE_PCI_DEVICE,
 401     .instance_size = sizeof(PCIDevice),
 402     .class_init = unin_agp_pci_host_class_init,
 403 };
 404
 405 static void unin_internal_pci_host_class_init(ObjectClass *klass, void *data)
 406 {
 407     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 408
 409     k->init      = unin_internal_pci_host_init;
 410     k->vendor_id = PCI_VENDOR_ID_APPLE;
 411     k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_I_PCI;
 412     k->revision  = 0x00;
 413     k->class_id  = PCI_CLASS_BRIDGE_HOST;
 414 }
 415
 416 static const TypeInfo unin_internal_pci_host_info = {
 417     .name = "uni-north-internal-pci",
 418     .parent = TYPE_PCI_DEVICE,
 419     .instance_size = sizeof(PCIDevice),
 420     .class_init = unin_internal_pci_host_class_init,
 421 };
 422
 423 static void pci_unin_main_class_init(ObjectClass *klass, void *data)
 424 {
 425     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 426
 427     sbc->init = pci_unin_main_init_device;
 428 }
 429
 430 static const TypeInfo pci_unin_main_info = {
 431     .name          = TYPE_UNI_NORTH_PCI_HOST_BRIDGE,
 432     .parent        = TYPE_PCI_HOST_BRIDGE,
 433     .instance_size = sizeof(UNINState),
 434     .class_init    = pci_unin_main_class_init,
 435 };
 436
 437 static void pci_u3_agp_class_init(ObjectClass *klass, void *data)
 438 {
 439     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 440
 441     sbc->init = pci_u3_agp_init_device;
 442 }
 443
 444 static const TypeInfo pci_u3_agp_info = {
 445     .name          = TYPE_U3_AGP_HOST_BRIDGE,
 446     .parent        = TYPE_PCI_HOST_BRIDGE,
 447     .instance_size = sizeof(UNINState),
 448     .class_init    = pci_u3_agp_class_init,
 449 };
 450
 451 static void pci_unin_agp_class_init(ObjectClass *klass, void *data)
 452 {
 453     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 454
 455     sbc->init = pci_unin_agp_init_device;
 456 }
 457
 458 static const TypeInfo pci_unin_agp_info = {
 459     .name          = TYPE_UNI_NORTH_AGP_HOST_BRIDGE,
 460     .parent        = TYPE_PCI_HOST_BRIDGE,
 461     .instance_size = sizeof(UNINState),
 462     .class_init    = pci_unin_agp_class_init,
 463 };
 464
 465 static void pci_unin_internal_class_init(ObjectClass *klass, void *data)
 466 {
 467     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 468
 469     sbc->init = pci_unin_internal_init_device;
 470 }
 471
 472 static const TypeInfo pci_unin_internal_info = {
 473     .name          = TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE,
 474     .parent        = TYPE_PCI_HOST_BRIDGE,
 475     .instance_size = sizeof(UNINState),
 476     .class_init    = pci_unin_internal_class_init,
 477 };
 478
 479 static void unin_register_types(void)
 480 {
 481     type_register_static(&unin_main_pci_host_info);
 482     type_register_static(&u3_agp_pci_host_info);
 483     type_register_static(&unin_agp_pci_host_info);
 484     type_register_static(&unin_internal_pci_host_info);
 485
 486     type_register_static(&pci_unin_main_info);
 487     type_register_static(&pci_u3_agp_info);
 488     type_register_static(&pci_unin_agp_info);
 489     type_register_static(&pci_unin_internal_info);
 490 }
 491
 492 type_init(unin_register_types)