grackle.c (5513B)
1 /* 2 * QEMU Grackle PCI host (heathrow OldWorld PowerMac) 3 * 4 * Copyright (c) 2006-2007 Fabrice Bellard 5 * Copyright (c) 2007 Jocelyn Mayer 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26 #include "qemu/osdep.h" 27 #include "hw/qdev-properties.h" 28 #include "hw/pci/pci.h" 29 #include "hw/irq.h" 30 #include "qapi/error.h" 31 #include "qemu/module.h" 32 #include "trace.h" 33 #include "qom/object.h" 34 #include "hw/pci-host/grackle.h" 35 36 /* Don't know if this matches real hardware, but it agrees with OHW. */ 37 static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num) 38 { 39 return (irq_num + (pci_dev->devfn >> 3)) & 3; 40 } 41 42 static void pci_grackle_set_irq(void *opaque, int irq_num, int level) 43 { 44 GrackleState *s = opaque; 45 46 trace_grackle_set_irq(irq_num, level); 47 qemu_set_irq(s->irqs[irq_num], level); 48 } 49 50 static void grackle_realize(DeviceState *dev, Error **errp) 51 { 52 GrackleState *s = GRACKLE_PCI_HOST_BRIDGE(dev); 53 PCIHostState *phb = PCI_HOST_BRIDGE(dev); 54 55 phb->bus = pci_register_root_bus(dev, NULL, 56 pci_grackle_set_irq, 57 pci_grackle_map_irq, 58 s, 59 &s->pci_mmio, 60 &s->pci_io, 61 0, 4, TYPE_PCI_BUS); 62 63 pci_create_simple(phb->bus, 0, "grackle"); 64 } 65 66 static void grackle_init(Object *obj) 67 { 68 GrackleState *s = GRACKLE_PCI_HOST_BRIDGE(obj); 69 SysBusDevice *sbd = SYS_BUS_DEVICE(obj); 70 PCIHostState *phb = PCI_HOST_BRIDGE(obj); 71 72 memory_region_init(&s->pci_mmio, OBJECT(s), "pci-mmio", 0x100000000ULL); 73 memory_region_init_io(&s->pci_io, OBJECT(s), &unassigned_io_ops, obj, 74 "pci-isa-mmio", 0x00200000); 75 76 memory_region_init_alias(&s->pci_hole, OBJECT(s), "pci-hole", &s->pci_mmio, 77 0x80000000ULL, 0x7e000000ULL); 78 79 memory_region_init_io(&phb->conf_mem, obj, &pci_host_conf_le_ops, 80 DEVICE(obj), "pci-conf-idx", 0x1000); 81 memory_region_init_io(&phb->data_mem, obj, &pci_host_data_le_ops, 82 DEVICE(obj), "pci-data-idx", 0x1000); 83 84 sysbus_init_mmio(sbd, &phb->conf_mem); 85 sysbus_init_mmio(sbd, &phb->data_mem); 86 sysbus_init_mmio(sbd, &s->pci_hole); 87 sysbus_init_mmio(sbd, &s->pci_io); 88 89 qdev_init_gpio_out(DEVICE(obj), s->irqs, ARRAY_SIZE(s->irqs)); 90 } 91 92 static void grackle_pci_realize(PCIDevice *d, Error **errp) 93 { 94 d->config[0x09] = 0x01; 95 } 96 97 static void grackle_pci_class_init(ObjectClass *klass, void *data) 98 { 99 DeviceClass *dc = DEVICE_CLASS(klass); 100 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 101 102 k->realize = grackle_pci_realize; 103 k->vendor_id = PCI_VENDOR_ID_MOTOROLA; 104 k->device_id = PCI_DEVICE_ID_MOTOROLA_MPC106; 105 k->revision = 0x00; 106 k->class_id = PCI_CLASS_BRIDGE_HOST; 107 /* 108 * PCI-facing part of the host bridge, not usable without the 109 * host-facing part, which can't be device_add'ed, yet. 110 */ 111 dc->user_creatable = false; 112 } 113 114 static const TypeInfo grackle_pci_info = { 115 .name = "grackle", 116 .parent = TYPE_PCI_DEVICE, 117 .instance_size = sizeof(PCIDevice), 118 .class_init = grackle_pci_class_init, 119 .interfaces = (InterfaceInfo[]) { 120 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 121 { }, 122 }, 123 }; 124 125 static char *grackle_ofw_unit_address(const SysBusDevice *dev) 126 { 127 GrackleState *s = GRACKLE_PCI_HOST_BRIDGE(dev); 128 129 return g_strdup_printf("%x", s->ofw_addr); 130 } 131 132 static Property grackle_properties[] = { 133 DEFINE_PROP_UINT32("ofw-addr", GrackleState, ofw_addr, -1), 134 DEFINE_PROP_END_OF_LIST() 135 }; 136 137 static void grackle_class_init(ObjectClass *klass, void *data) 138 { 139 DeviceClass *dc = DEVICE_CLASS(klass); 140 SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass); 141 142 dc->realize = grackle_realize; 143 device_class_set_props(dc, grackle_properties); 144 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 145 dc->fw_name = "pci"; 146 sbc->explicit_ofw_unit_address = grackle_ofw_unit_address; 147 } 148 149 static const TypeInfo grackle_host_info = { 150 .name = TYPE_GRACKLE_PCI_HOST_BRIDGE, 151 .parent = TYPE_PCI_HOST_BRIDGE, 152 .instance_size = sizeof(GrackleState), 153 .instance_init = grackle_init, 154 .class_init = grackle_class_init, 155 }; 156 157 static void grackle_register_types(void) 158 { 159 type_register_static(&grackle_pci_info); 160 type_register_static(&grackle_host_info); 161 } 162 163 type_init(grackle_register_types)