root / hw / prep_pci.c @ 8294a64d
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1 | 502a5395 | pbrook | /*
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2 | 502a5395 | pbrook | * QEMU PREP PCI host
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3 | 502a5395 | pbrook | *
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4 | 502a5395 | pbrook | * Copyright (c) 2006 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | 502a5395 | pbrook | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 502a5395 | pbrook | * of this software and associated documentation files (the "Software"), to deal
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8 | 502a5395 | pbrook | * in the Software without restriction, including without limitation the rights
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9 | 502a5395 | pbrook | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 502a5395 | pbrook | * copies of the Software, and to permit persons to whom the Software is
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11 | 502a5395 | pbrook | * furnished to do so, subject to the following conditions:
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12 | 502a5395 | pbrook | *
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13 | 502a5395 | pbrook | * The above copyright notice and this permission notice shall be included in
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14 | 502a5395 | pbrook | * all copies or substantial portions of the Software.
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15 | 502a5395 | pbrook | *
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16 | 502a5395 | pbrook | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 502a5395 | pbrook | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 502a5395 | pbrook | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 502a5395 | pbrook | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 502a5395 | pbrook | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 502a5395 | pbrook | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 502a5395 | pbrook | * THE SOFTWARE.
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23 | 502a5395 | pbrook | */
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24 | 502a5395 | pbrook | |
25 | 87ecb68b | pbrook | #include "hw.h" |
26 | 87ecb68b | pbrook | #include "pci.h" |
27 | 502a5395 | pbrook | #include "pci_host.h" |
28 | 6c84ce0d | Hervé Poussineau | #include "pc.h" |
29 | 8ca8c7bc | Andreas Färber | #include "exec-memory.h" |
30 | 502a5395 | pbrook | |
31 | 8ca8c7bc | Andreas Färber | typedef struct PRePPCIState { |
32 | 8ca8c7bc | Andreas Färber | PCIHostState host_state; |
33 | 6c84ce0d | Hervé Poussineau | MemoryRegion intack; |
34 | 8ca8c7bc | Andreas Färber | qemu_irq irq[4];
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35 | 8ca8c7bc | Andreas Färber | } PREPPCIState; |
36 | 502a5395 | pbrook | |
37 | 55526054 | Andreas Färber | typedef struct RavenPCIState { |
38 | 55526054 | Andreas Färber | PCIDevice dev; |
39 | 55526054 | Andreas Färber | } RavenPCIState; |
40 | 55526054 | Andreas Färber | |
41 | c227f099 | Anthony Liguori | static inline uint32_t PPC_PCIIO_config(target_phys_addr_t addr) |
42 | 502a5395 | pbrook | { |
43 | 502a5395 | pbrook | int i;
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44 | 502a5395 | pbrook | |
45 | 502a5395 | pbrook | for(i = 0; i < 11; i++) { |
46 | 502a5395 | pbrook | if ((addr & (1 << (11 + i))) != 0) |
47 | 502a5395 | pbrook | break;
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48 | 502a5395 | pbrook | } |
49 | 502a5395 | pbrook | return (addr & 0x7ff) | (i << 11); |
50 | 502a5395 | pbrook | } |
51 | 502a5395 | pbrook | |
52 | 7e5610ff | Andreas Färber | static void ppc_pci_io_write(void *opaque, target_phys_addr_t addr, |
53 | 7e5610ff | Andreas Färber | uint64_t val, unsigned int size) |
54 | 502a5395 | pbrook | { |
55 | 502a5395 | pbrook | PREPPCIState *s = opaque; |
56 | 8ca8c7bc | Andreas Färber | pci_data_write(s->host_state.bus, PPC_PCIIO_config(addr), val, size); |
57 | 502a5395 | pbrook | } |
58 | 502a5395 | pbrook | |
59 | 7e5610ff | Andreas Färber | static uint64_t ppc_pci_io_read(void *opaque, target_phys_addr_t addr, |
60 | 7e5610ff | Andreas Färber | unsigned int size) |
61 | 502a5395 | pbrook | { |
62 | 502a5395 | pbrook | PREPPCIState *s = opaque; |
63 | 8ca8c7bc | Andreas Färber | return pci_data_read(s->host_state.bus, PPC_PCIIO_config(addr), size);
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64 | 502a5395 | pbrook | } |
65 | 502a5395 | pbrook | |
66 | f81138ce | Avi Kivity | static const MemoryRegionOps PPC_PCIIO_ops = { |
67 | 7e5610ff | Andreas Färber | .read = ppc_pci_io_read, |
68 | 7e5610ff | Andreas Färber | .write = ppc_pci_io_write, |
69 | 9c95f183 | Andreas Färber | .endianness = DEVICE_LITTLE_ENDIAN, |
70 | 502a5395 | pbrook | }; |
71 | 502a5395 | pbrook | |
72 | 6c84ce0d | Hervé Poussineau | static uint64_t ppc_intack_read(void *opaque, target_phys_addr_t addr, |
73 | 6c84ce0d | Hervé Poussineau | unsigned int size) |
74 | 6c84ce0d | Hervé Poussineau | { |
75 | 6c84ce0d | Hervé Poussineau | return pic_read_irq(isa_pic);
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76 | 6c84ce0d | Hervé Poussineau | } |
77 | 6c84ce0d | Hervé Poussineau | |
78 | 6c84ce0d | Hervé Poussineau | static const MemoryRegionOps PPC_intack_ops = { |
79 | 6c84ce0d | Hervé Poussineau | .read = ppc_intack_read, |
80 | 6c84ce0d | Hervé Poussineau | .valid = { |
81 | 6c84ce0d | Hervé Poussineau | .max_access_size = 1,
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82 | 6c84ce0d | Hervé Poussineau | }, |
83 | 6c84ce0d | Hervé Poussineau | }; |
84 | 6c84ce0d | Hervé Poussineau | |
85 | d2b59317 | pbrook | static int prep_map_irq(PCIDevice *pci_dev, int irq_num) |
86 | 502a5395 | pbrook | { |
87 | 80b3ada7 | pbrook | return (irq_num + (pci_dev->devfn >> 3)) & 1; |
88 | d2b59317 | pbrook | } |
89 | d2b59317 | pbrook | |
90 | 5d4e84c8 | Juan Quintela | static void prep_set_irq(void *opaque, int irq_num, int level) |
91 | d2b59317 | pbrook | { |
92 | 5d4e84c8 | Juan Quintela | qemu_irq *pic = opaque; |
93 | 5d4e84c8 | Juan Quintela | |
94 | 8ca8c7bc | Andreas Färber | qemu_set_irq(pic[irq_num] , level); |
95 | 502a5395 | pbrook | } |
96 | 502a5395 | pbrook | |
97 | 8ca8c7bc | Andreas Färber | static int raven_pcihost_init(SysBusDevice *dev) |
98 | 502a5395 | pbrook | { |
99 | 8ca8c7bc | Andreas Färber | PCIHostState *h = FROM_SYSBUS(PCIHostState, dev); |
100 | 8ca8c7bc | Andreas Färber | PREPPCIState *s = DO_UPCAST(PREPPCIState, host_state, h); |
101 | 8ca8c7bc | Andreas Färber | MemoryRegion *address_space_mem = get_system_memory(); |
102 | 8ca8c7bc | Andreas Färber | MemoryRegion *address_space_io = get_system_io(); |
103 | 8ca8c7bc | Andreas Färber | PCIBus *bus; |
104 | 8ca8c7bc | Andreas Färber | int i;
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105 | 8ca8c7bc | Andreas Färber | |
106 | 8ca8c7bc | Andreas Färber | for (i = 0; i < 4; i++) { |
107 | 8ca8c7bc | Andreas Färber | sysbus_init_irq(dev, &s->irq[i]); |
108 | 8ca8c7bc | Andreas Färber | } |
109 | 502a5395 | pbrook | |
110 | 8ca8c7bc | Andreas Färber | bus = pci_register_bus(&h->busdev.qdev, NULL,
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111 | 8ca8c7bc | Andreas Färber | prep_set_irq, prep_map_irq, s->irq, |
112 | 8ca8c7bc | Andreas Färber | address_space_mem, address_space_io, 0, 4); |
113 | 8ca8c7bc | Andreas Färber | h->bus = bus; |
114 | 502a5395 | pbrook | |
115 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->conf_mem, &pci_host_conf_be_ops, s, |
116 | d0ed8076 | Avi Kivity | "pci-conf-idx", 1); |
117 | 8ca8c7bc | Andreas Färber | sysbus_add_io(dev, 0xcf8, &h->conf_mem);
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118 | 8ca8c7bc | Andreas Färber | sysbus_init_ioports(&h->busdev, 0xcf8, 1); |
119 | d0ed8076 | Avi Kivity | |
120 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->data_mem, &pci_host_data_be_ops, s, |
121 | d0ed8076 | Avi Kivity | "pci-conf-data", 1); |
122 | 8ca8c7bc | Andreas Färber | sysbus_add_io(dev, 0xcfc, &h->data_mem);
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123 | 8ca8c7bc | Andreas Färber | sysbus_init_ioports(&h->busdev, 0xcfc, 1); |
124 | 502a5395 | pbrook | |
125 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->mmcfg, &PPC_PCIIO_ops, s, "pciio", 0x00400000); |
126 | 8ca8c7bc | Andreas Färber | memory_region_add_subregion(address_space_mem, 0x80800000, &h->mmcfg);
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127 | 502a5395 | pbrook | |
128 | 6c84ce0d | Hervé Poussineau | memory_region_init_io(&s->intack, &PPC_intack_ops, s, "pci-intack", 1); |
129 | 6c84ce0d | Hervé Poussineau | memory_region_add_subregion(address_space_mem, 0xbffffff0, &s->intack);
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130 | 8ca8c7bc | Andreas Färber | pci_create_simple(bus, 0, "raven"); |
131 | 55526054 | Andreas Färber | |
132 | 8ca8c7bc | Andreas Färber | return 0; |
133 | 55526054 | Andreas Färber | } |
134 | 55526054 | Andreas Färber | |
135 | 55526054 | Andreas Färber | static int raven_init(PCIDevice *d) |
136 | 55526054 | Andreas Färber | { |
137 | 502a5395 | pbrook | d->config[0x0C] = 0x08; // cache_line_size |
138 | 502a5395 | pbrook | d->config[0x0D] = 0x10; // latency_timer |
139 | 502a5395 | pbrook | d->config[0x34] = 0x00; // capabilities_pointer |
140 | 502a5395 | pbrook | |
141 | 55526054 | Andreas Färber | return 0; |
142 | 502a5395 | pbrook | } |
143 | 55526054 | Andreas Färber | |
144 | 55526054 | Andreas Färber | static const VMStateDescription vmstate_raven = { |
145 | 55526054 | Andreas Färber | .name = "raven",
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146 | 55526054 | Andreas Färber | .version_id = 0,
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147 | 55526054 | Andreas Färber | .minimum_version_id = 0,
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148 | 55526054 | Andreas Färber | .fields = (VMStateField[]) { |
149 | 55526054 | Andreas Färber | VMSTATE_PCI_DEVICE(dev, RavenPCIState), |
150 | 55526054 | Andreas Färber | VMSTATE_END_OF_LIST() |
151 | 55526054 | Andreas Färber | }, |
152 | 55526054 | Andreas Färber | }; |
153 | 55526054 | Andreas Färber | |
154 | 40021f08 | Anthony Liguori | static void raven_class_init(ObjectClass *klass, void *data) |
155 | 40021f08 | Anthony Liguori | { |
156 | 40021f08 | Anthony Liguori | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
157 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
158 | 40021f08 | Anthony Liguori | |
159 | 40021f08 | Anthony Liguori | k->init = raven_init; |
160 | 40021f08 | Anthony Liguori | k->vendor_id = PCI_VENDOR_ID_MOTOROLA; |
161 | 40021f08 | Anthony Liguori | k->device_id = PCI_DEVICE_ID_MOTOROLA_RAVEN; |
162 | 40021f08 | Anthony Liguori | k->revision = 0x00;
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163 | 40021f08 | Anthony Liguori | k->class_id = PCI_CLASS_BRIDGE_HOST; |
164 | 39bffca2 | Anthony Liguori | dc->desc = "PReP Host Bridge - Motorola Raven";
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165 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_raven; |
166 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
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167 | 40021f08 | Anthony Liguori | } |
168 | 40021f08 | Anthony Liguori | |
169 | 39bffca2 | Anthony Liguori | static TypeInfo raven_info = {
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170 | 40021f08 | Anthony Liguori | .name = "raven",
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171 | 39bffca2 | Anthony Liguori | .parent = TYPE_PCI_DEVICE, |
172 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(RavenPCIState),
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173 | 40021f08 | Anthony Liguori | .class_init = raven_class_init, |
174 | 55526054 | Andreas Färber | }; |
175 | 55526054 | Andreas Färber | |
176 | 999e12bb | Anthony Liguori | static void raven_pcihost_class_init(ObjectClass *klass, void *data) |
177 | 999e12bb | Anthony Liguori | { |
178 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
179 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
180 | 999e12bb | Anthony Liguori | |
181 | 999e12bb | Anthony Liguori | k->init = raven_pcihost_init; |
182 | 39bffca2 | Anthony Liguori | dc->fw_name = "pci";
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183 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
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184 | 999e12bb | Anthony Liguori | } |
185 | 999e12bb | Anthony Liguori | |
186 | 39bffca2 | Anthony Liguori | static TypeInfo raven_pcihost_info = {
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187 | 999e12bb | Anthony Liguori | .name = "raven-pcihost",
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188 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
189 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(PREPPCIState),
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190 | 999e12bb | Anthony Liguori | .class_init = raven_pcihost_class_init, |
191 | 8ca8c7bc | Andreas Färber | }; |
192 | 8ca8c7bc | Andreas Färber | |
193 | 83f7d43a | Andreas Färber | static void raven_register_types(void) |
194 | 55526054 | Andreas Färber | { |
195 | 39bffca2 | Anthony Liguori | type_register_static(&raven_pcihost_info); |
196 | 39bffca2 | Anthony Liguori | type_register_static(&raven_info); |
197 | 55526054 | Andreas Färber | } |
198 | 55526054 | Andreas Färber | |
199 | 83f7d43a | Andreas Färber | type_init(raven_register_types) |