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_conf_register_mmio(&s->host_state);
  88     pci_mem_data = pci_host_data_register_mmio(&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_unin_agp_init_device(SysBusDevice *dev)
  98 {
  99     UNINState *s;
 100     int pci_mem_config, pci_mem_data;
 101
 102     /* Uninorth AGP bus */
 103     s = FROM_SYSBUS(UNINState, dev);
 104
 105     pci_mem_config = pci_host_conf_register_mmio_noswap(&s->host_state);
 106     pci_mem_data = pci_host_data_register_mmio(&s->host_state);
 107     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 108     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 109     return 0;
 110 }
 111
 112 static int pci_unin_internal_init_device(SysBusDevice *dev)
 113 {
 114     UNINState *s;
 115     int pci_mem_config, pci_mem_data;
 116
 117     /* Uninorth internal bus */
 118     s = FROM_SYSBUS(UNINState, dev);
 119
 120     pci_mem_config = pci_host_conf_register_mmio_noswap(&s->host_state);
 121     pci_mem_data = pci_host_data_register_mmio(&s->host_state);
 122     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
 123     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
 124     return 0;
 125 }
 126
 127 PCIBus *pci_pmac_init(qemu_irq *pic)
 128 {
 129     DeviceState *dev;
 130     SysBusDevice *s;
 131     UNINState *d;
 132
 133     /* Use values found on a real PowerMac */
 134     /* Uninorth main bus */
 135     dev = qdev_create(NULL, "uni-north");
 136     qdev_init_nofail(dev);
 137     s = sysbus_from_qdev(dev);
 138     d = FROM_SYSBUS(UNINState, s);
 139     d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
 140                                          pci_unin_set_irq, pci_unin_map_irq,
 141                                          pic, 11 << 3, 4);
 142
 143 #if 0
 144     pci_create_simple(d->host_state.bus, 11 << 3, "uni-north");
 145 #endif
 146
 147     sysbus_mmio_map(s, 0, 0xf2800000);
 148     sysbus_mmio_map(s, 1, 0xf2c00000);
 149
 150     /* DEC 21154 bridge */
 151 #if 0
 152     /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
 153     pci_create_simple(d->host_state.bus, 12 << 3, "dec-21154");
 154 #endif
 155
 156     /* Uninorth AGP bus */
 157     pci_create_simple(d->host_state.bus, 11 << 3, "uni-north-agp");
 158     dev = qdev_create(NULL, "uni-north-agp");
 159     qdev_init_nofail(dev);
 160     s = sysbus_from_qdev(dev);
 161     sysbus_mmio_map(s, 0, 0xf0800000);
 162     sysbus_mmio_map(s, 1, 0xf0c00000);
 163
 164     /* Uninorth internal bus */
 165 #if 0
 166     /* XXX: not needed for now */
 167     pci_create_simple(d->host_state.bus, 14 << 3, "uni-north-pci");
 168     dev = qdev_create(NULL, "uni-north-pci");
 169     qdev_init_nofail(dev);
 170     s = sysbus_from_qdev(dev);
 171     sysbus_mmio_map(s, 0, 0xf4800000);
 172     sysbus_mmio_map(s, 1, 0xf4c00000);
 173 #endif
 174
 175     return d->host_state.bus;
 176 }
 177
 178 static int unin_main_pci_host_init(PCIDevice *d)
 179 {
 180     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 181     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
 182     d->config[0x08] = 0x00; // revision
 183     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 184     d->config[0x0C] = 0x08; // cache_line_size
 185     d->config[0x0D] = 0x10; // latency_timer
 186     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 187     d->config[0x34] = 0x00; // capabilities_pointer
 188     return 0;
 189 }
 190
 191 static int unin_agp_pci_host_init(PCIDevice *d)
 192 {
 193     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 194     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
 195     d->config[0x08] = 0x00; // revision
 196     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 197     d->config[0x0C] = 0x08; // cache_line_size
 198     d->config[0x0D] = 0x10; // latency_timer
 199     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 200     //    d->config[0x34] = 0x80; // capabilities_pointer
 201     return 0;
 202 }
 203
 204 static int unin_internal_pci_host_init(PCIDevice *d)
 205 {
 206     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
 207     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
 208     d->config[0x08] = 0x00; // revision
 209     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
 210     d->config[0x0C] = 0x08; // cache_line_size
 211     d->config[0x0D] = 0x10; // latency_timer
 212     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
 213     d->config[0x34] = 0x00; // capabilities_pointer
 214     return 0;
 215 }
 216
 217 static PCIDeviceInfo unin_main_pci_host_info = {
 218     .qdev.name = "uni-north",
 219     .qdev.size = sizeof(PCIDevice),
 220     .init      = unin_main_pci_host_init,
 221 };
 222
 223 static PCIDeviceInfo unin_agp_pci_host_info = {
 224     .qdev.name = "uni-north-agp",
 225     .qdev.size = sizeof(PCIDevice),
 226     .init      = unin_agp_pci_host_init,
 227 };
 228
 229 static PCIDeviceInfo unin_internal_pci_host_info = {
 230     .qdev.name = "uni-north-pci",
 231     .qdev.size = sizeof(PCIDevice),
 232     .init      = unin_internal_pci_host_init,
 233 };
 234
 235 static void unin_register_devices(void)
 236 {
 237     sysbus_register_dev("uni-north", sizeof(UNINState),
 238                         pci_unin_main_init_device);
 239     pci_qdev_register(&unin_main_pci_host_info);
 240     sysbus_register_dev("uni-north-agp", sizeof(UNINState),
 241                         pci_unin_agp_init_device);
 242     pci_qdev_register(&unin_agp_pci_host_info);
 243     sysbus_register_dev("uni-north-pci", sizeof(UNINState),
 244                         pci_unin_internal_init_device);
 245     pci_qdev_register(&unin_internal_pci_host_info);
 246 }
 247
 248 device_init(unin_register_devices)