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/*
* QEMU Grackle PCI host (heathrow OldWorld PowerMac)
*
* Copyright (c) 2006-2007 Fabrice Bellard
* Copyright (c) 2007 Jocelyn Mayer
*
* 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 "qemu/osdep.h"
#include "hw/pci/pci_host.h"
#include "hw/ppc/mac.h"
#include "hw/pci/pci.h"
/* debug Grackle */
//#define DEBUG_GRACKLE
#ifdef DEBUG_GRACKLE
#define GRACKLE_DPRINTF(fmt, ...) \
do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0)
#else
#define GRACKLE_DPRINTF(fmt, ...)
#endif
#define GRACKLE_PCI_HOST_BRIDGE(obj) \
OBJECT_CHECK(GrackleState, (obj), TYPE_GRACKLE_PCI_HOST_BRIDGE)
typedef struct GrackleState {
PCIHostState parent_obj;
MemoryRegion pci_mmio;
MemoryRegion pci_hole;
} GrackleState;
/* Don't know if this matches real hardware, but it agrees with OHW. */
static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
{
return (irq_num + (pci_dev->devfn >> 3)) & 3;
}
static void pci_grackle_set_irq(void *opaque, int irq_num, int level)
{
qemu_irq *pic = opaque;
GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
qemu_set_irq(pic[irq_num + 0x15], level);
}
PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io)
{
DeviceState *dev;
SysBusDevice *s;
PCIHostState *phb;
GrackleState *d;
dev = qdev_create(NULL, TYPE_GRACKLE_PCI_HOST_BRIDGE);
s = SYS_BUS_DEVICE(dev);
phb = PCI_HOST_BRIDGE(dev);
d = GRACKLE_PCI_HOST_BRIDGE(dev);
memory_region_init(&d->pci_mmio, OBJECT(s), "pci-mmio", 0x100000000ULL);
memory_region_init_alias(&d->pci_hole, OBJECT(s), "pci-hole", &d->pci_mmio,
0x80000000ULL, 0x7e000000ULL);
memory_region_add_subregion(address_space_mem, 0x80000000ULL,
&d->pci_hole);
phb->bus = pci_register_bus(dev, NULL,
pci_grackle_set_irq,
pci_grackle_map_irq,
pic,
&d->pci_mmio,
address_space_io,
0, 4, TYPE_PCI_BUS);
pci_create_simple(phb->bus, 0, "grackle");
qdev_init_nofail(dev);
sysbus_mmio_map(s, 0, base);
sysbus_mmio_map(s, 1, base + 0x00200000);
return phb->bus;
}
static int pci_grackle_init_device(SysBusDevice *dev)
{
PCIHostState *phb;
phb = PCI_HOST_BRIDGE(dev);
memory_region_init_io(&phb->conf_mem, OBJECT(dev), &pci_host_conf_le_ops,
dev, "pci-conf-idx", 0x1000);
memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops,
dev, "pci-data-idx", 0x1000);
sysbus_init_mmio(dev, &phb->conf_mem);
sysbus_init_mmio(dev, &phb->data_mem);
return 0;
}
static void grackle_pci_host_realize(PCIDevice *d, Error **errp)
{
d->config[0x09] = 0x01;
}
static void grackle_pci_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
k->realize = grackle_pci_host_realize;
k->vendor_id = PCI_VENDOR_ID_MOTOROLA;
k->device_id = PCI_DEVICE_ID_MOTOROLA_MPC106;
k->revision = 0x00;
k->class_id = PCI_CLASS_BRIDGE_HOST;
/*
* PCI-facing part of the host bridge, not usable without the
* host-facing part, which can't be device_add'ed, yet.
*/
dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo grackle_pci_info = {
.name = "grackle",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIDevice),
.class_init = grackle_pci_class_init,
};
static void pci_grackle_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
k->init = pci_grackle_init_device;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}
static const TypeInfo grackle_pci_host_info = {
.name = TYPE_GRACKLE_PCI_HOST_BRIDGE,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(GrackleState),
.class_init = pci_grackle_class_init,
};
static void grackle_register_types(void)
{
type_register_static(&grackle_pci_info);
type_register_static(&grackle_pci_host_info);
}
type_init(grackle_register_types)
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