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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 "hw/pci/pci_host.h" | |
27 | #include "hw/ppc/mac.h" | |
28 | #include "hw/pci/pci.h" | |
29 | ||
30 | /* debug Grackle */ | |
31 | //#define DEBUG_GRACKLE | |
32 | ||
33 | #ifdef DEBUG_GRACKLE | |
34 | #define GRACKLE_DPRINTF(fmt, ...) \ | |
35 | do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0) | |
36 | #else | |
37 | #define GRACKLE_DPRINTF(fmt, ...) | |
38 | #endif | |
39 | ||
40 | #define GRACKLE_PCI_HOST_BRIDGE(obj) \ | |
41 | OBJECT_CHECK(GrackleState, (obj), TYPE_GRACKLE_PCI_HOST_BRIDGE) | |
42 | ||
43 | typedef struct GrackleState { | |
44 | PCIHostState parent_obj; | |
45 | ||
46 | MemoryRegion pci_mmio; | |
47 | MemoryRegion pci_hole; | |
48 | } GrackleState; | |
49 | ||
50 | /* Don't know if this matches real hardware, but it agrees with OHW. */ | |
51 | static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num) | |
52 | { | |
53 | return (irq_num + (pci_dev->devfn >> 3)) & 3; | |
54 | } | |
55 | ||
56 | static void pci_grackle_set_irq(void *opaque, int irq_num, int level) | |
57 | { | |
58 | qemu_irq *pic = opaque; | |
59 | ||
60 | GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level); | |
61 | qemu_set_irq(pic[irq_num + 0x15], level); | |
62 | } | |
63 | ||
64 | PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic, | |
65 | MemoryRegion *address_space_mem, | |
66 | MemoryRegion *address_space_io) | |
67 | { | |
68 | DeviceState *dev; | |
69 | SysBusDevice *s; | |
70 | PCIHostState *phb; | |
71 | GrackleState *d; | |
72 | ||
73 | dev = qdev_create(NULL, TYPE_GRACKLE_PCI_HOST_BRIDGE); | |
74 | qdev_init_nofail(dev); | |
75 | s = SYS_BUS_DEVICE(dev); | |
76 | phb = PCI_HOST_BRIDGE(dev); | |
77 | d = GRACKLE_PCI_HOST_BRIDGE(dev); | |
78 | ||
79 | memory_region_init(&d->pci_mmio, "pci-mmio", 0x100000000ULL); | |
80 | memory_region_init_alias(&d->pci_hole, "pci-hole", &d->pci_mmio, | |
81 | 0x80000000ULL, 0x7e000000ULL); | |
82 | memory_region_add_subregion(address_space_mem, 0x80000000ULL, | |
83 | &d->pci_hole); | |
84 | ||
85 | phb->bus = pci_register_bus(dev, "pci", | |
86 | pci_grackle_set_irq, | |
87 | pci_grackle_map_irq, | |
88 | pic, | |
89 | &d->pci_mmio, | |
90 | address_space_io, | |
91 | 0, 4, TYPE_PCI_BUS); | |
92 | ||
93 | pci_create_simple(phb->bus, 0, "grackle"); | |
94 | ||
95 | sysbus_mmio_map(s, 0, base); | |
96 | sysbus_mmio_map(s, 1, base + 0x00200000); | |
97 | ||
98 | return phb->bus; | |
99 | } | |
100 | ||
101 | static int pci_grackle_init_device(SysBusDevice *dev) | |
102 | { | |
103 | PCIHostState *phb; | |
104 | ||
105 | phb = PCI_HOST_BRIDGE(dev); | |
106 | ||
107 | memory_region_init_io(&phb->conf_mem, &pci_host_conf_le_ops, | |
108 | dev, "pci-conf-idx", 0x1000); | |
109 | memory_region_init_io(&phb->data_mem, &pci_host_data_le_ops, | |
110 | dev, "pci-data-idx", 0x1000); | |
111 | sysbus_init_mmio(dev, &phb->conf_mem); | |
112 | sysbus_init_mmio(dev, &phb->data_mem); | |
113 | ||
114 | return 0; | |
115 | } | |
116 | ||
117 | static int grackle_pci_host_init(PCIDevice *d) | |
118 | { | |
119 | d->config[0x09] = 0x01; | |
120 | return 0; | |
121 | } | |
122 | ||
123 | static void grackle_pci_class_init(ObjectClass *klass, void *data) | |
124 | { | |
125 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
126 | DeviceClass *dc = DEVICE_CLASS(klass); | |
127 | ||
128 | k->init = grackle_pci_host_init; | |
129 | k->vendor_id = PCI_VENDOR_ID_MOTOROLA; | |
130 | k->device_id = PCI_DEVICE_ID_MOTOROLA_MPC106; | |
131 | k->revision = 0x00; | |
132 | k->class_id = PCI_CLASS_BRIDGE_HOST; | |
133 | dc->no_user = 1; | |
134 | } | |
135 | ||
136 | static const TypeInfo grackle_pci_info = { | |
137 | .name = "grackle", | |
138 | .parent = TYPE_PCI_DEVICE, | |
139 | .instance_size = sizeof(PCIDevice), | |
140 | .class_init = grackle_pci_class_init, | |
141 | }; | |
142 | ||
143 | static void pci_grackle_class_init(ObjectClass *klass, void *data) | |
144 | { | |
145 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); | |
146 | DeviceClass *dc = DEVICE_CLASS(klass); | |
147 | ||
148 | k->init = pci_grackle_init_device; | |
149 | dc->no_user = 1; | |
150 | } | |
151 | ||
152 | static const TypeInfo grackle_pci_host_info = { | |
153 | .name = TYPE_GRACKLE_PCI_HOST_BRIDGE, | |
154 | .parent = TYPE_PCI_HOST_BRIDGE, | |
155 | .instance_size = sizeof(GrackleState), | |
156 | .class_init = pci_grackle_class_init, | |
157 | }; | |
158 | ||
159 | static void grackle_register_types(void) | |
160 | { | |
161 | type_register_static(&grackle_pci_info); | |
162 | type_register_static(&grackle_pci_host_info); | |
163 | } | |
164 | ||
165 | type_init(grackle_register_types) |