| /* |
| * 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) |