There's no good reason to call our bus "pci" rather than let the default bus name take over ("pci.0"). The big downside to calling it different from anyone else is that tools that pass -device get confused. They are looking for a bus "pci.0" rather than "pci". To make life easier for everyone, let's just drop the name override. Signed-off-by: Alexander Graf <agraf@suse.de>
166 lines
5.1 KiB
C
166 lines
5.1 KiB
C
/*
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* QEMU Grackle PCI host (heathrow OldWorld PowerMac)
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*
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* Copyright (c) 2006-2007 Fabrice Bellard
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* Copyright (c) 2007 Jocelyn Mayer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/pci/pci_host.h"
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#include "hw/ppc/mac.h"
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#include "hw/pci/pci.h"
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/* debug Grackle */
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//#define DEBUG_GRACKLE
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#ifdef DEBUG_GRACKLE
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#define GRACKLE_DPRINTF(fmt, ...) \
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do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0)
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#else
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#define GRACKLE_DPRINTF(fmt, ...)
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#endif
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#define GRACKLE_PCI_HOST_BRIDGE(obj) \
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OBJECT_CHECK(GrackleState, (obj), TYPE_GRACKLE_PCI_HOST_BRIDGE)
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typedef struct GrackleState {
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PCIHostState parent_obj;
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MemoryRegion pci_mmio;
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MemoryRegion pci_hole;
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} GrackleState;
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/* Don't know if this matches real hardware, but it agrees with OHW. */
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static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
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{
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return (irq_num + (pci_dev->devfn >> 3)) & 3;
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}
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static void pci_grackle_set_irq(void *opaque, int irq_num, int level)
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{
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qemu_irq *pic = opaque;
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GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
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qemu_set_irq(pic[irq_num + 0x15], level);
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}
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PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic,
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MemoryRegion *address_space_mem,
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MemoryRegion *address_space_io)
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{
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DeviceState *dev;
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SysBusDevice *s;
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PCIHostState *phb;
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GrackleState *d;
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dev = qdev_create(NULL, TYPE_GRACKLE_PCI_HOST_BRIDGE);
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qdev_init_nofail(dev);
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s = SYS_BUS_DEVICE(dev);
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phb = PCI_HOST_BRIDGE(dev);
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d = GRACKLE_PCI_HOST_BRIDGE(dev);
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memory_region_init(&d->pci_mmio, OBJECT(s), "pci-mmio", 0x100000000ULL);
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memory_region_init_alias(&d->pci_hole, OBJECT(s), "pci-hole", &d->pci_mmio,
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0x80000000ULL, 0x7e000000ULL);
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memory_region_add_subregion(address_space_mem, 0x80000000ULL,
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&d->pci_hole);
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phb->bus = pci_register_bus(dev, NULL,
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pci_grackle_set_irq,
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pci_grackle_map_irq,
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pic,
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&d->pci_mmio,
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address_space_io,
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0, 4, TYPE_PCI_BUS);
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pci_create_simple(phb->bus, 0, "grackle");
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sysbus_mmio_map(s, 0, base);
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sysbus_mmio_map(s, 1, base + 0x00200000);
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return phb->bus;
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}
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static int pci_grackle_init_device(SysBusDevice *dev)
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{
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PCIHostState *phb;
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phb = PCI_HOST_BRIDGE(dev);
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memory_region_init_io(&phb->conf_mem, OBJECT(dev), &pci_host_conf_le_ops,
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dev, "pci-conf-idx", 0x1000);
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memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops,
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dev, "pci-data-idx", 0x1000);
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sysbus_init_mmio(dev, &phb->conf_mem);
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sysbus_init_mmio(dev, &phb->data_mem);
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return 0;
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}
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static int grackle_pci_host_init(PCIDevice *d)
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{
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d->config[0x09] = 0x01;
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return 0;
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}
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static void grackle_pci_class_init(ObjectClass *klass, void *data)
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{
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PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
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DeviceClass *dc = DEVICE_CLASS(klass);
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k->init = grackle_pci_host_init;
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k->vendor_id = PCI_VENDOR_ID_MOTOROLA;
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k->device_id = PCI_DEVICE_ID_MOTOROLA_MPC106;
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k->revision = 0x00;
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k->class_id = PCI_CLASS_BRIDGE_HOST;
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dc->no_user = 1;
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}
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static const TypeInfo grackle_pci_info = {
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.name = "grackle",
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.parent = TYPE_PCI_DEVICE,
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.instance_size = sizeof(PCIDevice),
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.class_init = grackle_pci_class_init,
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};
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static void pci_grackle_class_init(ObjectClass *klass, void *data)
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{
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SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
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DeviceClass *dc = DEVICE_CLASS(klass);
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k->init = pci_grackle_init_device;
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dc->no_user = 1;
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}
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static const TypeInfo grackle_pci_host_info = {
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.name = TYPE_GRACKLE_PCI_HOST_BRIDGE,
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.parent = TYPE_PCI_HOST_BRIDGE,
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.instance_size = sizeof(GrackleState),
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.class_init = pci_grackle_class_init,
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};
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static void grackle_register_types(void)
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{
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type_register_static(&grackle_pci_info);
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type_register_static(&grackle_pci_host_info);
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}
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type_init(grackle_register_types)
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