diff options
Diffstat (limited to 'hw/pci-host/grackle.c')
| -rw-r--r-- | hw/pci-host/grackle.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/hw/pci-host/grackle.c b/hw/pci-host/grackle.c new file mode 100644 index 000000000..b05facf46 --- /dev/null +++ b/hw/pci-host/grackle.c @@ -0,0 +1,176 @@ +/* + * 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/qdev-properties.h" +#include "hw/pci/pci.h" +#include "hw/irq.h" +#include "qapi/error.h" +#include "qemu/module.h" +#include "trace.h" +#include "qom/object.h" + +OBJECT_DECLARE_SIMPLE_TYPE(GrackleState, GRACKLE_PCI_HOST_BRIDGE) + +struct GrackleState { + PCIHostState parent_obj; + + uint32_t ofw_addr; + qemu_irq irqs[4]; + MemoryRegion pci_mmio; + MemoryRegion pci_hole; + MemoryRegion pci_io; +}; + +/* 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[0x09] = 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 Property grackle_properties[] = { + DEFINE_PROP_UINT32("ofw-addr", GrackleState, ofw_addr, -1), + DEFINE_PROP_END_OF_LIST() +}; + +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) |