root / hw / grackle_pci.c @ 9077f01b
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/*
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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 "sysbus.h" |
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#include "ppc_mac.h" |
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#include "pci.h" |
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#include "pci_host.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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typedef struct GrackleState { |
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SysBusDevice busdev; |
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PCIHostState host_state; |
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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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static void pci_grackle_reset(void *opaque) |
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{ |
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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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GrackleState *d; |
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dev = qdev_create(NULL, "grackle-pcihost"); |
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qdev_init_nofail(dev); |
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s = sysbus_from_qdev(dev); |
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d = FROM_SYSBUS(GrackleState, s); |
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memory_region_init(&d->pci_mmio, "pci-mmio", 0x100000000ULL); |
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memory_region_init_alias(&d->pci_hole, "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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d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
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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); |
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pci_create_simple(d->host_state.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 d->host_state.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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GrackleState *s; |
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s = FROM_SYSBUS(GrackleState, dev); |
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memory_region_init_io(&s->host_state.conf_mem, &pci_host_conf_le_ops, |
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&s->host_state, "pci-conf-idx", 0x1000); |
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memory_region_init_io(&s->host_state.data_mem, &pci_host_data_le_ops, |
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&s->host_state, "pci-data-idx", 0x1000); |
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sysbus_init_mmio(dev, &s->host_state.conf_mem); |
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sysbus_init_mmio(dev, &s->host_state.data_mem); |
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qemu_register_reset(pci_grackle_reset, &s->host_state); |
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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 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 TypeInfo grackle_pci_host_info = {
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.name = "grackle-pcihost",
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.parent = TYPE_SYS_BUS_DEVICE, |
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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) |