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 *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 *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 *pci_unin_main_write[] = {
  87     &pci_host_data_writeb,
  88     &pci_host_data_writew,
  89     &pci_host_data_writel,
  90 };
  91
  92 static CPUReadMemoryFunc *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 *pci_unin_config_write[] = {
 115     &pci_unin_config_writel,
 116     &pci_unin_config_writel,
 117     &pci_unin_config_writel,
 118 };
 119
 120 static CPUReadMemoryFunc *pci_unin_config_read[] = {
 121     &pci_unin_config_readl,
 122     &pci_unin_config_readl,
 123     &pci_unin_config_readl,
 124 };
 125
 126 static CPUWriteMemoryFunc *pci_unin_write[] = {
 127     &pci_host_data_writeb,
 128     &pci_host_data_writew,
 129     &pci_host_data_writel,
 130 };
 131
 132 static CPUReadMemoryFunc *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(qemu_irq *pic, int irq_num, int level)
 145 {
 146     qemu_set_irq(pic[irq_num + 8], level);
 147 }
 148
 149 static void pci_unin_save(QEMUFile* f, void *opaque)
 150 {
 151     PCIDevice *d = opaque;
 152
 153     pci_device_save(d, f);
 154 }
 155
 156 static int pci_unin_load(QEMUFile* f, void *opaque, int version_id)
 157 {
 158     PCIDevice *d = opaque;
 159
 160     if (version_id != 1)
 161         return -EINVAL;
 162
 163     return pci_device_load(d, f);
 164 }
 165
 166 static void pci_unin_reset(void *opaque)
 167 {
 168 }
 169
 170 static void pci_unin_main_init_device(SysBusDevice *dev)
 171 {
 172     UNINState *s;
 173     int pci_mem_config, pci_mem_data;
 174
 175     /* Use values found on a real PowerMac */
 176     /* Uninorth main bus */
 177     s = FROM_SYSBUS(UNINState, dev);
 178
 179     pci_mem_config = cpu_register_io_memory(pci_unin_main_config_read,
 180                                             pci_unin_main_config_write, s);
 181     pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
 182                                           pci_unin_main_write, &s->host_state);
 183
 184     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 185     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 186
 187     register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
 188     qemu_register_reset(pci_unin_reset, &s->host_state);
 189     pci_unin_reset(&s->host_state);
 190 }
 191
 192 static void pci_dec_21154_init_device(SysBusDevice *dev)
 193 {
 194     UNINState *s;
 195     int pci_mem_config, pci_mem_data;
 196
 197     /* Uninorth bridge */
 198     s = FROM_SYSBUS(UNINState, dev);
 199
 200     // XXX: s = &pci_bridge[2];
 201     pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
 202                                             pci_unin_config_write, s);
 203     pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
 204                                           pci_unin_main_write, &s->host_state);
 205     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 206     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 207 }
 208
 209 static void pci_unin_agp_init_device(SysBusDevice *dev)
 210 {
 211     UNINState *s;
 212     int pci_mem_config, pci_mem_data;
 213
 214     /* Uninorth AGP bus */
 215     s = FROM_SYSBUS(UNINState, dev);
 216
 217     pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
 218                                             pci_unin_config_write, s);
 219     pci_mem_data = cpu_register_io_memory(pci_unin_main_read,
 220                                           pci_unin_main_write, &s->host_state);
 221     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 222     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 223 }
 224
 225 static void pci_unin_internal_init_device(SysBusDevice *dev)
 226 {
 227     UNINState *s;
 228     int pci_mem_config, pci_mem_data;
 229
 230     /* Uninorth internal bus */
 231     s = FROM_SYSBUS(UNINState, dev);
 232
 233     pci_mem_config = cpu_register_io_memory(pci_unin_config_read,
 234                                             pci_unin_config_write, s);
 235     pci_mem_data = cpu_register_io_memory(pci_unin_read,
 236                                           pci_unin_write, s);
 237     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 238     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 239 }
 240
 241 PCIBus *pci_pmac_init(qemu_irq *pic)
 242 {
 243     DeviceState *dev;
 244     SysBusDevice *s;
 245     UNINState *d;
 246
 247     /* Use values found on a real PowerMac */
 248     /* Uninorth main bus */
 249     dev = qdev_create(NULL, "Uni-north main");
 250     qdev_init(dev);
 251     s = sysbus_from_qdev(dev);
 252     d = FROM_SYSBUS(UNINState, s);
 253     d->host_state.bus = pci_register_bus(NULL, "pci",
 254                                          pci_unin_set_irq, pci_unin_map_irq,
 255                                          pic, 11 << 3, 4);
 256
 257     pci_create_simple(d->host_state.bus, 11 << 3, "Uni-north main");
 258
 259     sysbus_mmio_map(s, 0, 0xf2800000);
 260     sysbus_mmio_map(s, 1, 0xf2c00000);
 261
 262     /* DEC 21154 bridge */
 263 #if 0
 264     /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
 265     pci_create_simple(d->host_state.bus, 12 << 3, "DEC 21154");
 266 #endif
 267
 268     /* Uninorth AGP bus */
 269     pci_create_simple(d->host_state.bus, 13 << 3, "Uni-north AGP");
 270
 271     /* Uninorth internal bus */
 272 #if 0
 273     /* XXX: not needed for now */
 274     pci_create_simple(d->host_state.bus, 14 << 3, "Uni-north internal");
 275 #endif
 276
 277     return d->host_state.bus;
 278 }
 279
 280 static void unin_main_pci_host_init(PCIDevice *d)
 281 {
 282     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 283     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
 284     d->config[0x08] = 0x00; // revision
 285     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 286     d->config[0x0C] = 0x08; // cache_line_size
 287     d->config[0x0D] = 0x10; // latency_timer
 288     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 289     d->config[0x34] = 0x00; // capabilities_pointer
 290 }
 291
 292 static void dec_21154_pci_host_init(PCIDevice *d)
 293 {
 294     /* pci-to-pci bridge */
 295     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC);
 296     pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154);
 297     d->config[0x08] = 0x05; // revision
 298     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
 299     d->config[0x0C] = 0x08; // cache_line_size
 300     d->config[0x0D] = 0x20; // latency_timer
 301     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_BRIDGE; // header_type
 302
 303     d->config[0x18] = 0x01; // primary_bus
 304     d->config[0x19] = 0x02; // secondary_bus
 305     d->config[0x1A] = 0x02; // subordinate_bus
 306     d->config[0x1B] = 0x20; // secondary_latency_timer
 307     d->config[0x1C] = 0x11; // io_base
 308     d->config[0x1D] = 0x01; // io_limit
 309     d->config[0x20] = 0x00; // memory_base
 310     d->config[0x21] = 0x80;
 311     d->config[0x22] = 0x00; // memory_limit
 312     d->config[0x23] = 0x80;
 313     d->config[0x24] = 0x01; // prefetchable_memory_base
 314     d->config[0x25] = 0x80;
 315     d->config[0x26] = 0xF1; // prefectchable_memory_limit
 316     d->config[0x27] = 0x7F;
 317     // d->config[0x34] = 0xdc // capabilities_pointer
 318 }
 319
 320 static void unin_agp_pci_host_init(PCIDevice *d)
 321 {
 322     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 323     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
 324     d->config[0x08] = 0x00; // revision
 325     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 326     d->config[0x0C] = 0x08; // cache_line_size
 327     d->config[0x0D] = 0x10; // latency_timer
 328     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 329     //    d->config[0x34] = 0x80; // capabilities_pointer
 330 }
 331
 332 static void unin_internal_pci_host_init(PCIDevice *d)
 333 {
 334     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 335     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
 336     d->config[0x08] = 0x00; // revision
 337     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 338     d->config[0x0C] = 0x08; // cache_line_size
 339     d->config[0x0D] = 0x10; // latency_timer
 340     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 341     d->config[0x34] = 0x00; // capabilities_pointer
 342 }
 343
 344 static PCIDeviceInfo unin_main_pci_host_info = {
 345     .qdev.name = "Uni-north main",
 346     .qdev.size = sizeof(PCIDevice),
 347     .init      = unin_main_pci_host_init,
 348 };
 349
 350 static PCIDeviceInfo dec_21154_pci_host_info = {
 351     .qdev.name = "DEC 21154",
 352     .qdev.size = sizeof(PCIDevice),
 353     .init      = dec_21154_pci_host_init,
 354 };
 355
 356 static PCIDeviceInfo unin_agp_pci_host_info = {
 357     .qdev.name = "Uni-north AGP",
 358     .qdev.size = sizeof(PCIDevice),
 359     .init      = unin_agp_pci_host_init,
 360 };
 361
 362 static PCIDeviceInfo unin_internal_pci_host_info = {
 363     .qdev.name = "Uni-north internal",
 364     .qdev.size = sizeof(PCIDevice),
 365     .init      = unin_internal_pci_host_init,
 366 };
 367
 368 static void unin_register_devices(void)
 369 {
 370     sysbus_register_dev("Uni-north main", sizeof(UNINState),
 371                         pci_unin_main_init_device);
 372     pci_qdev_register(&unin_main_pci_host_info);
 373     sysbus_register_dev("DEC 21154", sizeof(UNINState),
 374                         pci_dec_21154_init_device);
 375     pci_qdev_register(&dec_21154_pci_host_info);
 376     sysbus_register_dev("Uni-north AGP", sizeof(UNINState),
 377                         pci_unin_agp_init_device);
 378     pci_qdev_register(&unin_agp_pci_host_info);
 379     sysbus_register_dev("Uni-north internal", sizeof(UNINState),
 380                         pci_unin_internal_init_device);
 381     pci_qdev_register(&unin_internal_pci_host_info);
 382 }
 383
 384 device_init(unin_register_devices)