hw/unin_pci.c - qemu - Git at Google

 /*
  * QEMU Uninorth PCI host (for all Mac99 and newer machines)
  *
  * Copyright (c) 2006 Fabrice Bellard
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
 #include "hw.h"
 #include "ppc_mac.h"
 #include "pci.h"
 #include "pci_host.h"

 /* debug UniNorth */
 //#define DEBUG_UNIN

 #ifdef DEBUG_UNIN
 #define UNIN_DPRINTF(fmt, ...)                                  \
     do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
 #else
 #define UNIN_DPRINTF(fmt, ...)
 #endif

 static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e };

 typedef struct UNINState {
     SysBusDevice busdev;
     PCIHostState host_state;
     ReadWriteHandler data_handler;
 } UNINState;

 static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
 {
     int retval;
     int devfn = pci_dev->devfn & 0x00FFFFFF;

     retval = (((devfn >> 11) & 0x1F) + irq_num) & 3;

     return retval;
 }

 static void pci_unin_set_irq(void *opaque, int irq_num, int level)
 {
     qemu_irq *pic = opaque;

     UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
                  unin_irq_line[irq_num], level);
     qemu_set_irq(pic[unin_irq_line[irq_num]], level);
 }

 static void pci_unin_save(QEMUFile* f, void *opaque)
 {
     PCIDevice *d = opaque;

     pci_device_save(d, f);
 }

 static int pci_unin_load(QEMUFile* f, void *opaque, int version_id)
 {
     PCIDevice *d = opaque;

     if (version_id != 1)
         return -EINVAL;

     return pci_device_load(d, f);
 }

 static void pci_unin_reset(void *opaque)
 {
 }

 static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
 {
     uint32_t retval;

     if (reg & (1u << 31)) {
         /* XXX OpenBIOS compatibility hack */
         retval = reg | (addr & 3);
     } else if (reg & 1) {
         /* CFA1 style */
         retval = (reg & ~7u) | (addr & 7);
     } else {
         uint32_t slot, func;

         /* Grab CFA0 style values */
         slot = ffs(reg & 0xfffff800) - 1;
         func = (reg >> 8) & 7;

         /* ... and then convert them to x86 format */
         /* config pointer */
         retval = (reg & (0xff - 7)) | (addr & 7);
         /* slot */
         retval |= slot << 11;
         /* fn */
         retval |= func << 8;
     }


     UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
                  reg, addr, retval);

     return retval;
 }

 static void unin_data_write(ReadWriteHandler *handler,
                             pcibus_t addr, uint32_t val, int len)
 {
     UNINState *s = container_of(handler, UNINState, data_handler);
 #ifdef TARGET_WORDS_BIGENDIAN
     val = qemu_bswap_len(val, len);
 #endif
     UNIN_DPRINTF("write addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val);
     pci_data_write(s->host_state.bus,
                    unin_get_config_reg(s->host_state.config_reg, addr),
                    val, len);
 }

 static uint32_t unin_data_read(ReadWriteHandler *handler,
                                pcibus_t addr, int len)
 {
     UNINState *s = container_of(handler, UNINState, data_handler);
     uint32_t val;

     val = pci_data_read(s->host_state.bus,
                         unin_get_config_reg(s->host_state.config_reg, addr),
                         len);
     UNIN_DPRINTF("read addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val);
 #ifdef TARGET_WORDS_BIGENDIAN
     val = qemu_bswap_len(val, len);
 #endif
     return val;
 }

 static int pci_unin_main_init_device(SysBusDevice *dev)
 {
     UNINState *s;
     int pci_mem_config, pci_mem_data;

     /* Use values found on a real PowerMac */
     /* Uninorth main bus */
     s = FROM_SYSBUS(UNINState, dev);

     pci_mem_config = pci_host_conf_register_mmio(&s->host_state);
     s->data_handler.read = unin_data_read;
     s->data_handler.write = unin_data_write;
     pci_mem_data = cpu_register_io_memory_simple(&s->data_handler);
     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
     sysbus_init_mmio(dev, 0x1000, pci_mem_data);

     register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
     qemu_register_reset(pci_unin_reset, &s->host_state);
     return 0;
 }

 static int pci_u3_agp_init_device(SysBusDevice *dev)
 {
     UNINState *s;
     int pci_mem_config, pci_mem_data;

     /* Uninorth U3 AGP bus */
     s = FROM_SYSBUS(UNINState, dev);

     pci_mem_config = pci_host_conf_register_mmio(&s->host_state);
     s->data_handler.read = unin_data_read;
     s->data_handler.write = unin_data_write;
     pci_mem_data = cpu_register_io_memory_simple(&s->data_handler);
     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
     sysbus_init_mmio(dev, 0x1000, pci_mem_data);

     register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
     qemu_register_reset(pci_unin_reset, &s->host_state);

     return 0;
 }

 static int pci_unin_agp_init_device(SysBusDevice *dev)
 {
     UNINState *s;
     int pci_mem_config, pci_mem_data;

     /* Uninorth AGP bus */
     s = FROM_SYSBUS(UNINState, dev);

     pci_mem_config = pci_host_conf_register_mmio_noswap(&s->host_state);
     pci_mem_data = pci_host_data_register_mmio(&s->host_state);
     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
     return 0;
 }

 static int pci_unin_internal_init_device(SysBusDevice *dev)
 {
     UNINState *s;
     int pci_mem_config, pci_mem_data;

     /* Uninorth internal bus */
     s = FROM_SYSBUS(UNINState, dev);

     pci_mem_config = pci_host_conf_register_mmio_noswap(&s->host_state);
     pci_mem_data = pci_host_data_register_mmio(&s->host_state);
     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
     return 0;
 }

 PCIBus *pci_pmac_init(qemu_irq *pic)
 {
     DeviceState *dev;
     SysBusDevice *s;
     UNINState *d;

     /* Use values found on a real PowerMac */
     /* Uninorth main bus */
     dev = qdev_create(NULL, "uni-north");
     qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     d = FROM_SYSBUS(UNINState, s);
     d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
                                          pci_unin_set_irq, pci_unin_map_irq,
                                          pic, 11 << 3, 4);

 #if 0
     pci_create_simple(d->host_state.bus, 11 << 3, "uni-north");
 #endif

     sysbus_mmio_map(s, 0, 0xf2800000);
     sysbus_mmio_map(s, 1, 0xf2c00000);

     /* DEC 21154 bridge */
 #if 0
     /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
     pci_create_simple(d->host_state.bus, 12 << 3, "dec-21154");
 #endif

     /* Uninorth AGP bus */
     pci_create_simple(d->host_state.bus, 11 << 3, "uni-north-agp");
     dev = qdev_create(NULL, "uni-north-agp");
     qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     sysbus_mmio_map(s, 0, 0xf0800000);
     sysbus_mmio_map(s, 1, 0xf0c00000);

     /* Uninorth internal bus */
 #if 0
     /* XXX: not needed for now */
     pci_create_simple(d->host_state.bus, 14 << 3, "uni-north-pci");
     dev = qdev_create(NULL, "uni-north-pci");
     qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     sysbus_mmio_map(s, 0, 0xf4800000);
     sysbus_mmio_map(s, 1, 0xf4c00000);
 #endif

     return d->host_state.bus;
 }

 PCIBus *pci_pmac_u3_init(qemu_irq *pic)
 {
     DeviceState *dev;
     SysBusDevice *s;
     UNINState *d;

     /* Uninorth AGP bus */

     dev = qdev_create(NULL, "u3-agp");
     qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     d = FROM_SYSBUS(UNINState, s);

     d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
                                          pci_unin_set_irq, pci_unin_map_irq,
                                          pic, 11 << 3, 4);

     sysbus_mmio_map(s, 0, 0xf0800000);
     sysbus_mmio_map(s, 1, 0xf0c00000);

     pci_create_simple(d->host_state.bus, 11 << 3, "u3-agp");

     return d->host_state.bus;
 }

 static int unin_main_pci_host_init(PCIDevice *d)
 {
     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
     d->config[0x08] = 0x00; // revision
     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
     d->config[0x0C] = 0x08; // cache_line_size
     d->config[0x0D] = 0x10; // latency_timer
     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
     d->config[0x34] = 0x00; // capabilities_pointer
     return 0;
 }

 static int unin_agp_pci_host_init(PCIDevice *d)
 {
     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
     d->config[0x08] = 0x00; // revision
     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
     d->config[0x0C] = 0x08; // cache_line_size
     d->config[0x0D] = 0x10; // latency_timer
     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
     //    d->config[0x34] = 0x80; // capabilities_pointer
     return 0;
 }

 static int u3_agp_pci_host_init(PCIDevice *d)
 {
     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_U3_AGP);
     /* revision */
     d->config[0x08] = 0x00;
     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
     /* cache line size */
     d->config[0x0C] = 0x08;
     /* latency timer */
     d->config[0x0D] = 0x10;
     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;
     return 0;
 }

 static int unin_internal_pci_host_init(PCIDevice *d)
 {
     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
     pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
     d->config[0x08] = 0x00; // revision
     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
     d->config[0x0C] = 0x08; // cache_line_size
     d->config[0x0D] = 0x10; // latency_timer
     d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
     d->config[0x34] = 0x00; // capabilities_pointer
     return 0;
 }

 static PCIDeviceInfo unin_main_pci_host_info = {
     .qdev.name = "uni-north",
     .qdev.size = sizeof(PCIDevice),
     .init      = unin_main_pci_host_init,
 };

 static PCIDeviceInfo u3_agp_pci_host_info = {
     .qdev.name = "u3-agp",
     .qdev.size = sizeof(PCIDevice),
     .init      = u3_agp_pci_host_init,
 };

 static PCIDeviceInfo unin_agp_pci_host_info = {
     .qdev.name = "uni-north-agp",
     .qdev.size = sizeof(PCIDevice),
     .init      = unin_agp_pci_host_init,
 };

 static PCIDeviceInfo unin_internal_pci_host_info = {
     .qdev.name = "uni-north-pci",
     .qdev.size = sizeof(PCIDevice),
     .init      = unin_internal_pci_host_init,
 };

 static void unin_register_devices(void)
 {
     sysbus_register_dev("uni-north", sizeof(UNINState),
                         pci_unin_main_init_device);
     pci_qdev_register(&unin_main_pci_host_info);
     sysbus_register_dev("u3-agp", sizeof(UNINState),
                         pci_u3_agp_init_device);
     pci_qdev_register(&u3_agp_pci_host_info);
     sysbus_register_dev("uni-north-agp", sizeof(UNINState),
                         pci_unin_agp_init_device);
     pci_qdev_register(&unin_agp_pci_host_info);
     sysbus_register_dev("uni-north-pci", sizeof(UNINState),
                         pci_unin_internal_init_device);
     pci_qdev_register(&unin_internal_pci_host_info);
 }

 device_init(unin_register_devices)
	/*
	* QEMU Uninorth PCI host (for all Mac99 and newer machines)
	*
	* Copyright (c) 2006 Fabrice Bellard
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy
	* of this software and associated documentation files (the "Software"), to deal
	* in the Software without restriction, including without limitation the rights
	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	* copies of the Software, and to permit persons to whom the Software is
	* furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	* THE SOFTWARE.
	*/
	#include "hw.h"
	#include "ppc_mac.h"
	#include "pci.h"
	#include "pci_host.h"

	/* debug UniNorth */
	//#define DEBUG_UNIN

	#ifdef DEBUG_UNIN
	#define UNIN_DPRINTF(fmt, ...) \
	do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
	#else
	#define UNIN_DPRINTF(fmt, ...)
	#endif

	static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e };

	typedef struct UNINState {
	SysBusDevice busdev;
	PCIHostState host_state;
	ReadWriteHandler data_handler;
	} UNINState;

	static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
	{
	int retval;
	int devfn = pci_dev->devfn & 0x00FFFFFF;

	retval = (((devfn >> 11) & 0x1F) + irq_num) & 3;

	return retval;
	}

	static void pci_unin_set_irq(void *opaque, int irq_num, int level)
	{
	qemu_irq *pic = opaque;

	UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
	unin_irq_line[irq_num], level);
	qemu_set_irq(pic[unin_irq_line[irq_num]], level);
	}

	static void pci_unin_save(QEMUFile* f, void *opaque)
	{
	PCIDevice *d = opaque;

	pci_device_save(d, f);
	}

	static int pci_unin_load(QEMUFile* f, void *opaque, int version_id)
	{
	PCIDevice *d = opaque;

	if (version_id != 1)
	return -EINVAL;

	return pci_device_load(d, f);
	}

	static void pci_unin_reset(void *opaque)
	{
	}

	static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
	{
	uint32_t retval;

	if (reg & (1u << 31)) {
	/* XXX OpenBIOS compatibility hack */
	retval = reg \| (addr & 3);
	} else if (reg & 1) {
	/* CFA1 style */
	retval = (reg & ~7u) \| (addr & 7);
	} else {
	uint32_t slot, func;

	/* Grab CFA0 style values */
	slot = ffs(reg & 0xfffff800) - 1;
	func = (reg >> 8) & 7;

	/* ... and then convert them to x86 format */
	/* config pointer */
	retval = (reg & (0xff - 7)) \| (addr & 7);
	/* slot */
	retval \|= slot << 11;
	/* fn */
	retval \|= func << 8;
	}


	UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
	reg, addr, retval);

	return retval;
	}

	static void unin_data_write(ReadWriteHandler *handler,
	pcibus_t addr, uint32_t val, int len)
	{
	UNINState *s = container_of(handler, UNINState, data_handler);
	#ifdef TARGET_WORDS_BIGENDIAN
	val = qemu_bswap_len(val, len);
	#endif
	UNIN_DPRINTF("write addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val);
	pci_data_write(s->host_state.bus,
	unin_get_config_reg(s->host_state.config_reg, addr),
	val, len);
	}

	static uint32_t unin_data_read(ReadWriteHandler *handler,
	pcibus_t addr, int len)
	{
	UNINState *s = container_of(handler, UNINState, data_handler);
	uint32_t val;

	val = pci_data_read(s->host_state.bus,
	unin_get_config_reg(s->host_state.config_reg, addr),
	len);
	UNIN_DPRINTF("read addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val);
	#ifdef TARGET_WORDS_BIGENDIAN
	val = qemu_bswap_len(val, len);
	#endif
	return val;
	}

	static int pci_unin_main_init_device(SysBusDevice *dev)
	{
	UNINState *s;
	int pci_mem_config, pci_mem_data;

	/* Use values found on a real PowerMac */
	/* Uninorth main bus */
	s = FROM_SYSBUS(UNINState, dev);

	pci_mem_config = pci_host_conf_register_mmio(&s->host_state);
	s->data_handler.read = unin_data_read;
	s->data_handler.write = unin_data_write;
	pci_mem_data = cpu_register_io_memory_simple(&s->data_handler);
	sysbus_init_mmio(dev, 0x1000, pci_mem_config);
	sysbus_init_mmio(dev, 0x1000, pci_mem_data);

	register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
	qemu_register_reset(pci_unin_reset, &s->host_state);
	return 0;
	}

	static int pci_u3_agp_init_device(SysBusDevice *dev)
	{
	UNINState *s;
	int pci_mem_config, pci_mem_data;

	/* Uninorth U3 AGP bus */
	s = FROM_SYSBUS(UNINState, dev);

	pci_mem_config = pci_host_conf_register_mmio(&s->host_state);
	s->data_handler.read = unin_data_read;
	s->data_handler.write = unin_data_write;
	pci_mem_data = cpu_register_io_memory_simple(&s->data_handler);
	sysbus_init_mmio(dev, 0x1000, pci_mem_config);
	sysbus_init_mmio(dev, 0x1000, pci_mem_data);

	register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, &s->host_state);
	qemu_register_reset(pci_unin_reset, &s->host_state);

	return 0;
	}

	static int pci_unin_agp_init_device(SysBusDevice *dev)
	{
	UNINState *s;
	int pci_mem_config, pci_mem_data;

	/* Uninorth AGP bus */
	s = FROM_SYSBUS(UNINState, dev);

	pci_mem_config = pci_host_conf_register_mmio_noswap(&s->host_state);
	pci_mem_data = pci_host_data_register_mmio(&s->host_state);
	sysbus_init_mmio(dev, 0x1000, pci_mem_config);
	sysbus_init_mmio(dev, 0x1000, pci_mem_data);
	return 0;
	}

	static int pci_unin_internal_init_device(SysBusDevice *dev)
	{
	UNINState *s;
	int pci_mem_config, pci_mem_data;

	/* Uninorth internal bus */
	s = FROM_SYSBUS(UNINState, dev);

	pci_mem_config = pci_host_conf_register_mmio_noswap(&s->host_state);
	pci_mem_data = pci_host_data_register_mmio(&s->host_state);
	sysbus_init_mmio(dev, 0x1000, pci_mem_config);
	sysbus_init_mmio(dev, 0x1000, pci_mem_data);
	return 0;
	}

	PCIBus pci_pmac_init(qemu_irq pic)
	{
	DeviceState *dev;
	SysBusDevice *s;
	UNINState *d;

	/* Use values found on a real PowerMac */
	/* Uninorth main bus */
	dev = qdev_create(NULL, "uni-north");
	qdev_init_nofail(dev);
	s = sysbus_from_qdev(dev);
	d = FROM_SYSBUS(UNINState, s);
	d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
	pci_unin_set_irq, pci_unin_map_irq,
	pic, 11 << 3, 4);

	#if 0
	pci_create_simple(d->host_state.bus, 11 << 3, "uni-north");
	#endif

	sysbus_mmio_map(s, 0, 0xf2800000);
	sysbus_mmio_map(s, 1, 0xf2c00000);

	/* DEC 21154 bridge */
	#if 0
	/* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
	pci_create_simple(d->host_state.bus, 12 << 3, "dec-21154");
	#endif

	/* Uninorth AGP bus */
	pci_create_simple(d->host_state.bus, 11 << 3, "uni-north-agp");
	dev = qdev_create(NULL, "uni-north-agp");
	qdev_init_nofail(dev);
	s = sysbus_from_qdev(dev);
	sysbus_mmio_map(s, 0, 0xf0800000);
	sysbus_mmio_map(s, 1, 0xf0c00000);

	/* Uninorth internal bus */
	#if 0
	/* XXX: not needed for now */
	pci_create_simple(d->host_state.bus, 14 << 3, "uni-north-pci");
	dev = qdev_create(NULL, "uni-north-pci");
	qdev_init_nofail(dev);
	s = sysbus_from_qdev(dev);
	sysbus_mmio_map(s, 0, 0xf4800000);
	sysbus_mmio_map(s, 1, 0xf4c00000);
	#endif

	return d->host_state.bus;
	}

	PCIBus pci_pmac_u3_init(qemu_irq pic)
	{
	DeviceState *dev;
	SysBusDevice *s;
	UNINState *d;

	/* Uninorth AGP bus */

	dev = qdev_create(NULL, "u3-agp");
	qdev_init_nofail(dev);
	s = sysbus_from_qdev(dev);
	d = FROM_SYSBUS(UNINState, s);

	d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
	pci_unin_set_irq, pci_unin_map_irq,
	pic, 11 << 3, 4);

	sysbus_mmio_map(s, 0, 0xf0800000);
	sysbus_mmio_map(s, 1, 0xf0c00000);

	pci_create_simple(d->host_state.bus, 11 << 3, "u3-agp");

	return d->host_state.bus;
	}

	static int unin_main_pci_host_init(PCIDevice *d)
	{
	pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
	pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
	d->config[0x08] = 0x00; // revision
	pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
	d->config[0x0C] = 0x08; // cache_line_size
	d->config[0x0D] = 0x10; // latency_timer
	d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
	d->config[0x34] = 0x00; // capabilities_pointer
	return 0;
	}

	static int unin_agp_pci_host_init(PCIDevice *d)
	{
	pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
	pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
	d->config[0x08] = 0x00; // revision
	pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
	d->config[0x0C] = 0x08; // cache_line_size
	d->config[0x0D] = 0x10; // latency_timer
	d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
	// d->config[0x34] = 0x80; // capabilities_pointer
	return 0;
	}

	static int u3_agp_pci_host_init(PCIDevice *d)
	{
	pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
	pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_U3_AGP);
	/* revision */
	d->config[0x08] = 0x00;
	pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
	/* cache line size */
	d->config[0x0C] = 0x08;
	/* latency timer */
	d->config[0x0D] = 0x10;
	d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;
	return 0;
	}

	static int unin_internal_pci_host_init(PCIDevice *d)
	{
	pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
	pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
	d->config[0x08] = 0x00; // revision
	pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
	d->config[0x0C] = 0x08; // cache_line_size
	d->config[0x0D] = 0x10; // latency_timer
	d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
	d->config[0x34] = 0x00; // capabilities_pointer
	return 0;
	}

	static PCIDeviceInfo unin_main_pci_host_info = {
	.qdev.name = "uni-north",
	.qdev.size = sizeof(PCIDevice),
	.init = unin_main_pci_host_init,
	};

	static PCIDeviceInfo u3_agp_pci_host_info = {
	.qdev.name = "u3-agp",
	.qdev.size = sizeof(PCIDevice),
	.init = u3_agp_pci_host_init,
	};

	static PCIDeviceInfo unin_agp_pci_host_info = {
	.qdev.name = "uni-north-agp",
	.qdev.size = sizeof(PCIDevice),
	.init = unin_agp_pci_host_init,
	};

	static PCIDeviceInfo unin_internal_pci_host_info = {
	.qdev.name = "uni-north-pci",
	.qdev.size = sizeof(PCIDevice),
	.init = unin_internal_pci_host_init,
	};

	static void unin_register_devices(void)
	{
	sysbus_register_dev("uni-north", sizeof(UNINState),
	pci_unin_main_init_device);
	pci_qdev_register(&unin_main_pci_host_info);
	sysbus_register_dev("u3-agp", sizeof(UNINState),
	pci_u3_agp_init_device);
	pci_qdev_register(&u3_agp_pci_host_info);
	sysbus_register_dev("uni-north-agp", sizeof(UNINState),
	pci_unin_agp_init_device);
	pci_qdev_register(&unin_agp_pci_host_info);
	sysbus_register_dev("uni-north-pci", sizeof(UNINState),
	pci_unin_internal_init_device);
	pci_qdev_register(&unin_internal_pci_host_info);
	}

	device_init(unin_register_devices)