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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/qdev-properties.h"
#include "hw/pci/pci_device.h"
#include "hw/irq.h"
#include "qapi/error.h"
#include "qemu/module.h"
#include "trace.h"
#include "qom/object.h"
#include "hw/pci-host/grackle.h"
/* 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)
{
GrackleState *s = opaque;
trace_grackle_set_irq(irq_num, level);
qemu_set_irq(s->irqs[irq_num], level);
}
static void grackle_realize(DeviceState *dev, Error **errp)
{
GrackleState *s = GRACKLE_PCI_HOST_BRIDGE(dev);
PCIHostState *phb = PCI_HOST_BRIDGE(dev);
phb->bus = pci_register_root_bus(dev, NULL,
pci_grackle_set_irq,
pci_grackle_map_irq,
s,
&s->pci_mmio,
&s->pci_io,
0, 4, TYPE_PCI_BUS);
pci_create_simple(phb->bus, 0, "grackle");
}
static void grackle_init(Object *obj)
{
GrackleState *s = GRACKLE_PCI_HOST_BRIDGE(obj);
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
PCIHostState *phb = PCI_HOST_BRIDGE(obj);
memory_region_init(&s->pci_mmio, OBJECT(s), "pci-mmio", 0x100000000ULL);
memory_region_init_io(&s->pci_io, OBJECT(s), &unassigned_io_ops, obj,
"pci-isa-mmio", 0x00200000);
memory_region_init_alias(&s->pci_hole, OBJECT(s), "pci-hole", &s->pci_mmio,
0x80000000ULL, 0x7e000000ULL);
memory_region_init_io(&phb->conf_mem, obj, &pci_host_conf_le_ops,
DEVICE(obj), "pci-conf-idx", 0x1000);
memory_region_init_io(&phb->data_mem, obj, &pci_host_data_le_ops,
DEVICE(obj), "pci-data-idx", 0x1000);
sysbus_init_mmio(sbd, &phb->conf_mem);
sysbus_init_mmio(sbd, &phb->data_mem);
sysbus_init_mmio(sbd, &s->pci_hole);
sysbus_init_mmio(sbd, &s->pci_io);
qdev_init_gpio_out(DEVICE(obj), s->irqs, ARRAY_SIZE(s->irqs));
}
static void grackle_pci_realize(PCIDevice *d, Error **errp)
{
d->config[PCI_CLASS_PROG] = 0x01;
}
static void grackle_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->realize = grackle_pci_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->user_creatable = false;
}
static const TypeInfo grackle_pci_info = {
.name = "grackle",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIDevice),
.class_init = grackle_pci_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
{ },
},
};
static char *grackle_ofw_unit_address(const SysBusDevice *dev)
{
GrackleState *s = GRACKLE_PCI_HOST_BRIDGE(dev);
return g_strdup_printf("%x", s->ofw_addr);
}
static const Property grackle_properties[] = {
DEFINE_PROP_UINT32("ofw-addr", GrackleState, ofw_addr, -1),
};
static void grackle_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
dc->realize = grackle_realize;
device_class_set_props(dc, grackle_properties);
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->fw_name = "pci";
sbc->explicit_ofw_unit_address = grackle_ofw_unit_address;
}
static const TypeInfo grackle_host_info = {
.name = TYPE_GRACKLE_PCI_HOST_BRIDGE,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(GrackleState),
.instance_init = grackle_init,
.class_init = grackle_class_init,
};
static void grackle_register_types(void)
{
type_register_static(&grackle_pci_info);
type_register_static(&grackle_host_info);
}
type_init(grackle_register_types)
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