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 #include "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 typedef struct UNINState {
  40     SysBusDevice busdev;
  41     PCIHostState host_state;
  42 } UNINState;
  43
  44 /* Don't know if this matches real hardware, but it agrees with OHW.  */
  45 static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
  46 {
  47     return (irq_num + (pci_dev->devfn >> 3)) & 3;
  48 }
  49
  50 static void pci_unin_set_irq(void *opaque, int irq_num, int level)
  51 {
  52     qemu_irq *pic = opaque;
  53
  54     qemu_set_irq(pic[irq_num + 8], level);
  55 }
  56
  57 static void pci_unin_save(QEMUFile* f, void *opaque)
  58 {
  59     PCIDevice *d = opaque;
  60
  61     pci_device_save(d, f);
  62 }
  63
  64 static int pci_unin_load(QEMUFile* f, void *opaque, int version_id)
  65 {
  66     PCIDevice *d = opaque;
  67
  68     if (version_id != 1)
  69         return -EINVAL;
  70
  71     return pci_device_load(d, f);
  72 }
  73
  74 static void pci_unin_reset(void *opaque)
  75 {
  76 }
  77
  78 static int pci_unin_main_init_device(SysBusDevice *dev)
  79 {
  80     UNINState *s;
  81     int pci_mem_config, pci_mem_data;
  82
  83     /* Use values found on a real PowerMac */
  84     /* Uninorth main bus */
  85     s = FROM_SYSBUS(UNINState, dev);
  86
  87     pci_mem_config = pci_host_config_register_io_memory(&s->host_state);
  88     pci_mem_data = pci_host_data_register_io_memory(&s->host_state);
  89     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
  90     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
  91
  92     register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
  93     qemu_register_reset(pci_unin_reset, &s->host_state);
  94     return 0;
  95 }
  96
  97 static int pci_dec_21154_init_device(SysBusDevice *dev)
  98 {
  99     UNINState *s;
 100     int pci_mem_config, pci_mem_data;
 101
 102     /* Uninorth bridge */
 103     s = FROM_SYSBUS(UNINState, dev);
 104
 105     // XXX: s = &pci_bridge[2];
 106     pci_mem_config = pci_host_config_register_io_memory_noswap(&s->host_state);
 107     pci_mem_data = pci_host_data_register_io_memory(&s->host_state);
 108     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 109     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 110     return 0;
 111 }
 112
 113 static int pci_unin_agp_init_device(SysBusDevice *dev)
 114 {
 115     UNINState *s;
 116     int pci_mem_config, pci_mem_data;
 117
 118     /* Uninorth AGP bus */
 119     s = FROM_SYSBUS(UNINState, dev);
 120
 121     pci_mem_config = pci_host_config_register_io_memory_noswap(&s->host_state);
 122     pci_mem_data = pci_host_data_register_io_memory(&s->host_state);
 123     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 124     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 125     return 0;
 126 }
 127
 128 static int pci_unin_internal_init_device(SysBusDevice *dev)
 129 {
 130     UNINState *s;
 131     int pci_mem_config, pci_mem_data;
 132
 133     /* Uninorth internal bus */
 134     s = FROM_SYSBUS(UNINState, dev);
 135
 136     pci_mem_config = pci_host_config_register_io_memory_noswap(&s->host_state);
 137     pci_mem_data = pci_host_data_register_io_memory(&s->host_state);
 138     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 139     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 140     return 0;
 141 }
 142
 143 PCIBus *pci_pmac_init(qemu_irq *pic)
 144 {
 145     DeviceState *dev;
 146     SysBusDevice *s;
 147     UNINState *d;
 148
 149     /* Use values found on a real PowerMac */
 150     /* Uninorth main bus */
 151     dev = qdev_create(NULL, "Uni-north main");
 152     qdev_init_nofail(dev);
 153     s = sysbus_from_qdev(dev);
 154     d = FROM_SYSBUS(UNINState, s);
 155     d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
 156                                          pci_unin_set_irq, pci_unin_map_irq,
 157                                          pic, 11 << 3, 4);
 158
 159 #if 0
 160     pci_create_simple(d->host_state.bus, 11 << 3, "Uni-north main");
 161 #endif
 162
 163     sysbus_mmio_map(s, 0, 0xf2800000);
 164     sysbus_mmio_map(s, 1, 0xf2c00000);
 165
 166     /* DEC 21154 bridge */
 167 #if 0
 168     /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
 169     pci_create_simple(d->host_state.bus, 12 << 3, "DEC 21154");
 170 #endif
 171
 172     /* Uninorth AGP bus */
 173     pci_create_simple(d->host_state.bus, 11 << 3, "Uni-north AGP");
 174
 175     /* Uninorth internal bus */
 176 #if 0
 177     /* XXX: not needed for now */
 178     pci_create_simple(d->host_state.bus, 14 << 3, "Uni-north internal");
 179 #endif
 180
 181     return d->host_state.bus;
 182 }
 183
 184 static int unin_main_pci_host_init(PCIDevice *d)
 185 {
 186     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 187     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
 188     d->config[0x08] = 0x00; // revision
 189     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 190     d->config[0x0C] = 0x08; // cache_line_size
 191     d->config[0x0D] = 0x10; // latency_timer
 192     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 193     d->config[0x34] = 0x00; // capabilities_pointer
 194     return 0;
 195 }
 196
 197 static int dec_21154_pci_host_init(PCIDevice *d)
 198 {
 199     /* pci-to-pci bridge */
 200     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC);
 201     pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154);
 202     d->config[0x08] = 0x05; // revision
 203     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
 204     d->config[0x0C] = 0x08; // cache_line_size
 205     d->config[0x0D] = 0x20; // latency_timer
 206     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_BRIDGE; // header_type
 207
 208     d->config[0x18] = 0x01; // primary_bus
 209     d->config[0x19] = 0x02; // secondary_bus
 210     d->config[0x1A] = 0x02; // subordinate_bus
 211     d->config[0x1B] = 0x20; // secondary_latency_timer
 212     d->config[0x1C] = 0x11; // io_base
 213     d->config[0x1D] = 0x01; // io_limit
 214     d->config[0x20] = 0x00; // memory_base
 215     d->config[0x21] = 0x80;
 216     d->config[0x22] = 0x00; // memory_limit
 217     d->config[0x23] = 0x80;
 218     d->config[0x24] = 0x01; // prefetchable_memory_base
 219     d->config[0x25] = 0x80;
 220     d->config[0x26] = 0xF1; // prefectchable_memory_limit
 221     d->config[0x27] = 0x7F;
 222     // d->config[0x34] = 0xdc // capabilities_pointer
 223     return 0;
 224 }
 225
 226 static int unin_agp_pci_host_init(PCIDevice *d)
 227 {
 228     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 229     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
 230     d->config[0x08] = 0x00; // revision
 231     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 232     d->config[0x0C] = 0x08; // cache_line_size
 233     d->config[0x0D] = 0x10; // latency_timer
 234     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 235     //    d->config[0x34] = 0x80; // capabilities_pointer
 236     return 0;
 237 }
 238
 239 static int unin_internal_pci_host_init(PCIDevice *d)
 240 {
 241     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 242     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
 243     d->config[0x08] = 0x00; // revision
 244     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 245     d->config[0x0C] = 0x08; // cache_line_size
 246     d->config[0x0D] = 0x10; // latency_timer
 247     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 248     d->config[0x34] = 0x00; // capabilities_pointer
 249     return 0;
 250 }
 251
 252 static PCIDeviceInfo unin_main_pci_host_info = {
 253     .qdev.name = "Uni-north main",
 254     .qdev.size = sizeof(PCIDevice),
 255     .init      = unin_main_pci_host_init,
 256 };
 257
 258 static PCIDeviceInfo dec_21154_pci_host_info = {
 259     .qdev.name = "DEC 21154",
 260     .qdev.size = sizeof(PCIDevice),
 261     .init      = dec_21154_pci_host_init,
 262 };
 263
 264 static PCIDeviceInfo unin_agp_pci_host_info = {
 265     .qdev.name = "Uni-north AGP",
 266     .qdev.size = sizeof(PCIDevice),
 267     .init      = unin_agp_pci_host_init,
 268 };
 269
 270 static PCIDeviceInfo unin_internal_pci_host_info = {
 271     .qdev.name = "Uni-north internal",
 272     .qdev.size = sizeof(PCIDevice),
 273     .init      = unin_internal_pci_host_init,
 274 };
 275
 276 static void unin_register_devices(void)
 277 {
 278     sysbus_register_dev("Uni-north main", sizeof(UNINState),
 279                         pci_unin_main_init_device);
 280     pci_qdev_register(&unin_main_pci_host_info);
 281     sysbus_register_dev("DEC 21154", sizeof(UNINState),
 282                         pci_dec_21154_init_device);
 283     pci_qdev_register(&dec_21154_pci_host_info);
 284     sysbus_register_dev("Uni-north AGP", sizeof(UNINState),
 285                         pci_unin_agp_init_device);
 286     pci_qdev_register(&unin_agp_pci_host_info);
 287     sysbus_register_dev("Uni-north internal", sizeof(UNINState),
 288                         pci_unin_internal_init_device);
 289     pci_qdev_register(&unin_internal_pci_host_info);
 290 }
 291
 292 device_init(unin_register_devices)