--- /dev/null
+/*
+ * 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 "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);
+ qdev_init_nofail(dev);
+ 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");
+
+ 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);
+
+ k->init = pci_grackle_init_device;
+}
+
+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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