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.h"
  27
  28 /* debug UniNorth */
  29 //#define DEBUG_UNIN
  30
  31 #ifdef DEBUG_UNIN
  32 #define UNIN_DPRINTF(fmt, ...)                                  \
  33     do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
  34 #else
  35 #define UNIN_DPRINTF(fmt, ...)
  36 #endif
  37
  38 typedef target_phys_addr_t pci_addr_t;
  39 #include "pci_host.h"
  40
  41 typedef struct UNINState {
  42     SysBusDevice busdev;
  43     PCIHostState host_state;
  44 } UNINState;
  45
  46 static void pci_unin_main_config_writel (void *opaque, target_phys_addr_t addr,
  47                                          uint32_t val)
  48 {
  49     UNINState *s = opaque;
  50
  51     UNIN_DPRINTF("config_writel addr " TARGET_FMT_plx " val %x\n", addr, val);
  52 #ifdef TARGET_WORDS_BIGENDIAN
  53     val = bswap32(val);
  54 #endif
  55
  56     s->host_state.config_reg = val;
  57 }
  58
  59 static uint32_t pci_unin_main_config_readl (void *opaque,
  60                                             target_phys_addr_t addr)
  61 {
  62     UNINState *s = opaque;
  63     uint32_t val;
  64
  65     val = s->host_state.config_reg;
  66 #ifdef TARGET_WORDS_BIGENDIAN
  67     val = bswap32(val);
  68 #endif
  69     UNIN_DPRINTF("config_readl addr " TARGET_FMT_plx " val %x\n", addr, val);
  70
  71     return val;
  72 }
  73
  74 static CPUWriteMemoryFunc * const pci_unin_main_config_write[] = {
  75     &pci_unin_main_config_writel,
  76     &pci_unin_main_config_writel,
  77     &pci_unin_main_config_writel,
  78 };
  79
  80 static CPUReadMemoryFunc * const pci_unin_main_config_read[] = {
  81     &pci_unin_main_config_readl,
  82     &pci_unin_main_config_readl,
  83     &pci_unin_main_config_readl,
  84 };
  85
  86 static CPUWriteMemoryFunc * const pci_unin_main_write[] = {
  87     &pci_host_data_writeb,
  88     &pci_host_data_writew,
  89     &pci_host_data_writel,
  90 };
  91
  92 static CPUReadMemoryFunc * const pci_unin_main_read[] = {
  93     &pci_host_data_readb,
  94     &pci_host_data_readw,
  95     &pci_host_data_readl,
  96 };
  97
  98 static void pci_unin_config_writel (void *opaque, target_phys_addr_t addr,
  99                                     uint32_t val)
 100 {
 101     UNINState *s = opaque;
 102
 103     s->host_state.config_reg = val;
 104 }
 105
 106 static uint32_t pci_unin_config_readl (void *opaque,
 107                                        target_phys_addr_t addr)
 108 {
 109     UNINState *s = opaque;
 110
 111     return s->host_state.config_reg;
 112 }
 113
 114 static CPUWriteMemoryFunc * const pci_unin_config_write[] = {
 115     &pci_unin_config_writel,
 116     &pci_unin_config_writel,
 117     &pci_unin_config_writel,
 118 };
 119
 120 static CPUReadMemoryFunc * const pci_unin_config_read[] = {
 121     &pci_unin_config_readl,
 122     &pci_unin_config_readl,
 123     &pci_unin_config_readl,
 124 };
 125
 126 static CPUWriteMemoryFunc * const pci_unin_write[] = {
 127     &pci_host_data_writeb,
 128     &pci_host_data_writew,
 129     &pci_host_data_writel,
 130 };
 131
 132 static CPUReadMemoryFunc * const pci_unin_read[] = {
 133     &pci_host_data_readb,
 134     &pci_host_data_readw,
 135     &pci_host_data_readl,
 136 };
 137
 138 /* Don't know if this matches real hardware, but it agrees with OHW.  */
 139 static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
 140 {
 141     return (irq_num + (pci_dev->devfn >> 3)) & 3;
 142 }
 143
 144 static void pci_unin_set_irq(void *opaque, int irq_num, int level)
 145 {
 146     qemu_irq *pic = opaque;
 147
 148     qemu_set_irq(pic[irq_num + 8], level);
 149 }
 150
 151 static void pci_unin_save(QEMUFile* f, void *opaque)
 152 {
 153     PCIDevice *d = opaque;
 154
 155     pci_device_save(d, f);
 156 }
 157
 158 static int pci_unin_load(QEMUFile* f, void *opaque, int version_id)
 159 {
 160     PCIDevice *d = opaque;
 161
 162     if (version_id != 1)
 163         return -EINVAL;
 164
 165     return pci_device_load(d, f);
 166 }
 167
 168 static void pci_unin_reset(void *opaque)
 169 {
 170 }
 171
 172 static int pci_unin_main_init_device(SysBusDevice *dev)
 173 {
 174     UNINState *s;
 175     int pci_mem_config, pci_mem_data;
 176
 177     /* Use values found on a real PowerMac */
 178     /* Uninorth main bus */
 179     s = FROM_SYSBUS(UNINState, dev);
 180
 181     pci_mem_config = cpu_register_io_memory(pci_unin_main_config_read,
 182                                             pci_unin_main_config_write, s);
 183     pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
 184                                           pci_unin_main_write, &s->host_state);
 185
 186     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 187     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 188
 189     register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
 190     qemu_register_reset(pci_unin_reset, &s->host_state);
 191     pci_unin_reset(&s->host_state);
 192     return 0;
 193 }
 194
 195 static int pci_dec_21154_init_device(SysBusDevice *dev)
 196 {
 197     UNINState *s;
 198     int pci_mem_config, pci_mem_data;
 199
 200     /* Uninorth bridge */
 201     s = FROM_SYSBUS(UNINState, dev);
 202
 203     // XXX: s = &pci_bridge[2];
 204     pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
 205                                             pci_unin_config_write, s);
 206     pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
 207                                           pci_unin_main_write, &s->host_state);
 208     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 209     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 210     return 0;
 211 }
 212
 213 static int pci_unin_agp_init_device(SysBusDevice *dev)
 214 {
 215     UNINState *s;
 216     int pci_mem_config, pci_mem_data;
 217
 218     /* Uninorth AGP bus */
 219     s = FROM_SYSBUS(UNINState, dev);
 220
 221     pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
 222                                             pci_unin_config_write, s);
 223     pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
 224                                           pci_unin_main_write, &s->host_state);
 225     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 226     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 227     return 0;
 228 }
 229
 230 static int pci_unin_internal_init_device(SysBusDevice *dev)
 231 {
 232     UNINState *s;
 233     int pci_mem_config, pci_mem_data;
 234
 235     /* Uninorth internal bus */
 236     s = FROM_SYSBUS(UNINState, dev);
 237
 238     pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
 239                                             pci_unin_config_write, s);
 240     pci_mem_data = cpu_register_io_memory(pci_unin_read,
 241                                           pci_unin_write, s);
 242     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 243     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 244     return 0;
 245 }
 246
 247 PCIBus *pci_pmac_init(qemu_irq *pic)
 248 {
 249     DeviceState *dev;
 250     SysBusDevice *s;
 251     UNINState *d;
 252
 253     /* Use values found on a real PowerMac */
 254     /* Uninorth main bus */
 255     dev = qdev_create(NULL, "Uni-north main");
 256     qdev_init(dev);
 257     s = sysbus_from_qdev(dev);
 258     d = FROM_SYSBUS(UNINState, s);
 259     d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
 260                                          pci_unin_set_irq, pci_unin_map_irq,
 261                                          pic, 11 << 3, 4);
 262
 263     pci_create_simple(d->host_state.bus, 11 << 3, "Uni-north main");
 264
 265     sysbus_mmio_map(s, 0, 0xf2800000);
 266     sysbus_mmio_map(s, 1, 0xf2c00000);
 267
 268     /* DEC 21154 bridge */
 269 #if 0
 270     /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
 271     pci_create_simple(d->host_state.bus, 12 << 3, "DEC 21154");
 272 #endif
 273
 274     /* Uninorth AGP bus */
 275     pci_create_simple(d->host_state.bus, 13 << 3, "Uni-north AGP");
 276
 277     /* Uninorth internal bus */
 278 #if 0
 279     /* XXX: not needed for now */
 280     pci_create_simple(d->host_state.bus, 14 << 3, "Uni-north internal");
 281 #endif
 282
 283     return d->host_state.bus;
 284 }
 285
 286 static int unin_main_pci_host_init(PCIDevice *d)
 287 {
 288     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 289     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
 290     d->config[0x08] = 0x00; // revision
 291     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 292     d->config[0x0C] = 0x08; // cache_line_size
 293     d->config[0x0D] = 0x10; // latency_timer
 294     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 295     d->config[0x34] = 0x00; // capabilities_pointer
 296     return 0;
 297 }
 298
 299 static int dec_21154_pci_host_init(PCIDevice *d)
 300 {
 301     /* pci-to-pci bridge */
 302     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC);
 303     pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154);
 304     d->config[0x08] = 0x05; // revision
 305     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
 306     d->config[0x0C] = 0x08; // cache_line_size
 307     d->config[0x0D] = 0x20; // latency_timer
 308     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_BRIDGE; // header_type
 309
 310     d->config[0x18] = 0x01; // primary_bus
 311     d->config[0x19] = 0x02; // secondary_bus
 312     d->config[0x1A] = 0x02; // subordinate_bus
 313     d->config[0x1B] = 0x20; // secondary_latency_timer
 314     d->config[0x1C] = 0x11; // io_base
 315     d->config[0x1D] = 0x01; // io_limit
 316     d->config[0x20] = 0x00; // memory_base
 317     d->config[0x21] = 0x80;
 318     d->config[0x22] = 0x00; // memory_limit
 319     d->config[0x23] = 0x80;
 320     d->config[0x24] = 0x01; // prefetchable_memory_base
 321     d->config[0x25] = 0x80;
 322     d->config[0x26] = 0xF1; // prefectchable_memory_limit
 323     d->config[0x27] = 0x7F;
 324     // d->config[0x34] = 0xdc // capabilities_pointer
 325     return 0;
 326 }
 327
 328 static int unin_agp_pci_host_init(PCIDevice *d)
 329 {
 330     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 331     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
 332     d->config[0x08] = 0x00; // revision
 333     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 334     d->config[0x0C] = 0x08; // cache_line_size
 335     d->config[0x0D] = 0x10; // latency_timer
 336     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 337     //    d->config[0x34] = 0x80; // capabilities_pointer
 338     return 0;
 339 }
 340
 341 static int unin_internal_pci_host_init(PCIDevice *d)
 342 {
 343     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 344     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
 345     d->config[0x08] = 0x00; // revision
 346     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 347     d->config[0x0C] = 0x08; // cache_line_size
 348     d->config[0x0D] = 0x10; // latency_timer
 349     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 350     d->config[0x34] = 0x00; // capabilities_pointer
 351     return 0;
 352 }
 353
 354 static PCIDeviceInfo unin_main_pci_host_info = {
 355     .qdev.name = "Uni-north main",
 356     .qdev.size = sizeof(PCIDevice),
 357     .init      = unin_main_pci_host_init,
 358 };
 359
 360 static PCIDeviceInfo dec_21154_pci_host_info = {
 361     .qdev.name = "DEC 21154",
 362     .qdev.size = sizeof(PCIDevice),
 363     .init      = dec_21154_pci_host_init,
 364 };
 365
 366 static PCIDeviceInfo unin_agp_pci_host_info = {
 367     .qdev.name = "Uni-north AGP",
 368     .qdev.size = sizeof(PCIDevice),
 369     .init      = unin_agp_pci_host_init,
 370 };
 371
 372 static PCIDeviceInfo unin_internal_pci_host_info = {
 373     .qdev.name = "Uni-north internal",
 374     .qdev.size = sizeof(PCIDevice),
 375     .init      = unin_internal_pci_host_init,
 376 };
 377
 378 static void unin_register_devices(void)
 379 {
 380     sysbus_register_dev("Uni-north main", sizeof(UNINState),
 381                         pci_unin_main_init_device);
 382     pci_qdev_register(&unin_main_pci_host_info);
 383     sysbus_register_dev("DEC 21154", sizeof(UNINState),
 384                         pci_dec_21154_init_device);
 385     pci_qdev_register(&dec_21154_pci_host_info);
 386     sysbus_register_dev("Uni-north AGP", sizeof(UNINState),
 387                         pci_unin_agp_init_device);
 388     pci_qdev_register(&unin_agp_pci_host_info);
 389     sysbus_register_dev("Uni-north internal", sizeof(UNINState),
 390                         pci_unin_internal_init_device);
 391     pci_qdev_register(&unin_internal_pci_host_info);
 392 }
 393
 394 device_init(unin_register_devices)