root / hw / prep_pci.c @ c3203fa5
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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 | a2cb15b0 | Michael S. Tsirkin | #include "pci/pci.h" |
27 | a2cb15b0 | Michael S. Tsirkin | #include "pci/pci_host.h" |
28 | 6c84ce0d | Hervé Poussineau | #include "pc.h" |
29 | 022c62cb | Paolo Bonzini | #include "exec/address-spaces.h" |
30 | 502a5395 | pbrook | |
31 | 03a6b667 | Andreas Färber | #define TYPE_RAVEN_PCI_HOST_BRIDGE "raven-pcihost" |
32 | 03a6b667 | Andreas Färber | |
33 | 03a6b667 | Andreas Färber | #define RAVEN_PCI_HOST_BRIDGE(obj) \
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34 | 03a6b667 | Andreas Färber | OBJECT_CHECK(PREPPCIState, (obj), TYPE_RAVEN_PCI_HOST_BRIDGE) |
35 | 03a6b667 | Andreas Färber | |
36 | 8ca8c7bc | Andreas Färber | typedef struct PRePPCIState { |
37 | 67c332fd | Andreas Färber | PCIHostState parent_obj; |
38 | 03a6b667 | Andreas Färber | |
39 | 6c84ce0d | Hervé Poussineau | MemoryRegion intack; |
40 | 8ca8c7bc | Andreas Färber | qemu_irq irq[4];
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41 | 8ca8c7bc | Andreas Färber | } PREPPCIState; |
42 | 502a5395 | pbrook | |
43 | 55526054 | Andreas Färber | typedef struct RavenPCIState { |
44 | 55526054 | Andreas Färber | PCIDevice dev; |
45 | 55526054 | Andreas Färber | } RavenPCIState; |
46 | 55526054 | Andreas Färber | |
47 | a8170e5e | Avi Kivity | static inline uint32_t PPC_PCIIO_config(hwaddr addr) |
48 | 502a5395 | pbrook | { |
49 | 502a5395 | pbrook | int i;
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50 | 502a5395 | pbrook | |
51 | 03a6b667 | Andreas Färber | for (i = 0; i < 11; i++) { |
52 | 03a6b667 | Andreas Färber | if ((addr & (1 << (11 + i))) != 0) { |
53 | 502a5395 | pbrook | break;
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54 | 03a6b667 | Andreas Färber | } |
55 | 502a5395 | pbrook | } |
56 | 502a5395 | pbrook | return (addr & 0x7ff) | (i << 11); |
57 | 502a5395 | pbrook | } |
58 | 502a5395 | pbrook | |
59 | a8170e5e | Avi Kivity | static void ppc_pci_io_write(void *opaque, hwaddr addr, |
60 | 7e5610ff | Andreas Färber | uint64_t val, unsigned int size) |
61 | 502a5395 | pbrook | { |
62 | 502a5395 | pbrook | PREPPCIState *s = opaque; |
63 | 67c332fd | Andreas Färber | PCIHostState *phb = PCI_HOST_BRIDGE(s); |
64 | 67c332fd | Andreas Färber | pci_data_write(phb->bus, PPC_PCIIO_config(addr), val, size); |
65 | 502a5395 | pbrook | } |
66 | 502a5395 | pbrook | |
67 | a8170e5e | Avi Kivity | static uint64_t ppc_pci_io_read(void *opaque, hwaddr addr, |
68 | 7e5610ff | Andreas Färber | unsigned int size) |
69 | 502a5395 | pbrook | { |
70 | 502a5395 | pbrook | PREPPCIState *s = opaque; |
71 | 67c332fd | Andreas Färber | PCIHostState *phb = PCI_HOST_BRIDGE(s); |
72 | 67c332fd | Andreas Färber | return pci_data_read(phb->bus, PPC_PCIIO_config(addr), size);
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73 | 502a5395 | pbrook | } |
74 | 502a5395 | pbrook | |
75 | f81138ce | Avi Kivity | static const MemoryRegionOps PPC_PCIIO_ops = { |
76 | 7e5610ff | Andreas Färber | .read = ppc_pci_io_read, |
77 | 7e5610ff | Andreas Färber | .write = ppc_pci_io_write, |
78 | 9c95f183 | Andreas Färber | .endianness = DEVICE_LITTLE_ENDIAN, |
79 | 502a5395 | pbrook | }; |
80 | 502a5395 | pbrook | |
81 | a8170e5e | Avi Kivity | static uint64_t ppc_intack_read(void *opaque, hwaddr addr, |
82 | 6c84ce0d | Hervé Poussineau | unsigned int size) |
83 | 6c84ce0d | Hervé Poussineau | { |
84 | 6c84ce0d | Hervé Poussineau | return pic_read_irq(isa_pic);
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85 | 6c84ce0d | Hervé Poussineau | } |
86 | 6c84ce0d | Hervé Poussineau | |
87 | 6c84ce0d | Hervé Poussineau | static const MemoryRegionOps PPC_intack_ops = { |
88 | 6c84ce0d | Hervé Poussineau | .read = ppc_intack_read, |
89 | 6c84ce0d | Hervé Poussineau | .valid = { |
90 | 6c84ce0d | Hervé Poussineau | .max_access_size = 1,
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91 | 6c84ce0d | Hervé Poussineau | }, |
92 | 6c84ce0d | Hervé Poussineau | }; |
93 | 6c84ce0d | Hervé Poussineau | |
94 | d2b59317 | pbrook | static int prep_map_irq(PCIDevice *pci_dev, int irq_num) |
95 | 502a5395 | pbrook | { |
96 | 80b3ada7 | pbrook | return (irq_num + (pci_dev->devfn >> 3)) & 1; |
97 | d2b59317 | pbrook | } |
98 | d2b59317 | pbrook | |
99 | 5d4e84c8 | Juan Quintela | static void prep_set_irq(void *opaque, int irq_num, int level) |
100 | d2b59317 | pbrook | { |
101 | 5d4e84c8 | Juan Quintela | qemu_irq *pic = opaque; |
102 | 5d4e84c8 | Juan Quintela | |
103 | 8ca8c7bc | Andreas Färber | qemu_set_irq(pic[irq_num] , level); |
104 | 502a5395 | pbrook | } |
105 | 502a5395 | pbrook | |
106 | 8ca8c7bc | Andreas Färber | static int raven_pcihost_init(SysBusDevice *dev) |
107 | 502a5395 | pbrook | { |
108 | 8558d942 | Andreas Färber | PCIHostState *h = PCI_HOST_BRIDGE(dev); |
109 | 03a6b667 | Andreas Färber | PREPPCIState *s = RAVEN_PCI_HOST_BRIDGE(dev); |
110 | 8ca8c7bc | Andreas Färber | MemoryRegion *address_space_mem = get_system_memory(); |
111 | 8ca8c7bc | Andreas Färber | MemoryRegion *address_space_io = get_system_io(); |
112 | 8ca8c7bc | Andreas Färber | PCIBus *bus; |
113 | 8ca8c7bc | Andreas Färber | int i;
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114 | 8ca8c7bc | Andreas Färber | |
115 | 8ca8c7bc | Andreas Färber | for (i = 0; i < 4; i++) { |
116 | 8ca8c7bc | Andreas Färber | sysbus_init_irq(dev, &s->irq[i]); |
117 | 8ca8c7bc | Andreas Färber | } |
118 | 502a5395 | pbrook | |
119 | 03a6b667 | Andreas Färber | bus = pci_register_bus(DEVICE(dev), NULL,
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120 | 8ca8c7bc | Andreas Färber | prep_set_irq, prep_map_irq, s->irq, |
121 | 8ca8c7bc | Andreas Färber | address_space_mem, address_space_io, 0, 4); |
122 | 8ca8c7bc | Andreas Färber | h->bus = bus; |
123 | 502a5395 | pbrook | |
124 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->conf_mem, &pci_host_conf_be_ops, s, |
125 | d0ed8076 | Avi Kivity | "pci-conf-idx", 1); |
126 | 8ca8c7bc | Andreas Färber | sysbus_add_io(dev, 0xcf8, &h->conf_mem);
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127 | 8ca8c7bc | Andreas Färber | sysbus_init_ioports(&h->busdev, 0xcf8, 1); |
128 | d0ed8076 | Avi Kivity | |
129 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->data_mem, &pci_host_data_be_ops, s, |
130 | d0ed8076 | Avi Kivity | "pci-conf-data", 1); |
131 | 8ca8c7bc | Andreas Färber | sysbus_add_io(dev, 0xcfc, &h->data_mem);
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132 | 8ca8c7bc | Andreas Färber | sysbus_init_ioports(&h->busdev, 0xcfc, 1); |
133 | 502a5395 | pbrook | |
134 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->mmcfg, &PPC_PCIIO_ops, s, "pciio", 0x00400000); |
135 | 8ca8c7bc | Andreas Färber | memory_region_add_subregion(address_space_mem, 0x80800000, &h->mmcfg);
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136 | 502a5395 | pbrook | |
137 | 6c84ce0d | Hervé Poussineau | memory_region_init_io(&s->intack, &PPC_intack_ops, s, "pci-intack", 1); |
138 | 6c84ce0d | Hervé Poussineau | memory_region_add_subregion(address_space_mem, 0xbffffff0, &s->intack);
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139 | 8ca8c7bc | Andreas Färber | pci_create_simple(bus, 0, "raven"); |
140 | 55526054 | Andreas Färber | |
141 | 8ca8c7bc | Andreas Färber | return 0; |
142 | 55526054 | Andreas Färber | } |
143 | 55526054 | Andreas Färber | |
144 | 55526054 | Andreas Färber | static int raven_init(PCIDevice *d) |
145 | 55526054 | Andreas Färber | { |
146 | 502a5395 | pbrook | d->config[0x0C] = 0x08; // cache_line_size |
147 | 502a5395 | pbrook | d->config[0x0D] = 0x10; // latency_timer |
148 | 502a5395 | pbrook | d->config[0x34] = 0x00; // capabilities_pointer |
149 | 502a5395 | pbrook | |
150 | 55526054 | Andreas Färber | return 0; |
151 | 502a5395 | pbrook | } |
152 | 55526054 | Andreas Färber | |
153 | 55526054 | Andreas Färber | static const VMStateDescription vmstate_raven = { |
154 | 55526054 | Andreas Färber | .name = "raven",
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155 | 55526054 | Andreas Färber | .version_id = 0,
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156 | 55526054 | Andreas Färber | .minimum_version_id = 0,
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157 | 55526054 | Andreas Färber | .fields = (VMStateField[]) { |
158 | 55526054 | Andreas Färber | VMSTATE_PCI_DEVICE(dev, RavenPCIState), |
159 | 55526054 | Andreas Färber | VMSTATE_END_OF_LIST() |
160 | 55526054 | Andreas Färber | }, |
161 | 55526054 | Andreas Färber | }; |
162 | 55526054 | Andreas Färber | |
163 | 40021f08 | Anthony Liguori | static void raven_class_init(ObjectClass *klass, void *data) |
164 | 40021f08 | Anthony Liguori | { |
165 | 40021f08 | Anthony Liguori | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
166 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
167 | 40021f08 | Anthony Liguori | |
168 | 40021f08 | Anthony Liguori | k->init = raven_init; |
169 | 40021f08 | Anthony Liguori | k->vendor_id = PCI_VENDOR_ID_MOTOROLA; |
170 | 40021f08 | Anthony Liguori | k->device_id = PCI_DEVICE_ID_MOTOROLA_RAVEN; |
171 | 40021f08 | Anthony Liguori | k->revision = 0x00;
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172 | 40021f08 | Anthony Liguori | k->class_id = PCI_CLASS_BRIDGE_HOST; |
173 | 39bffca2 | Anthony Liguori | dc->desc = "PReP Host Bridge - Motorola Raven";
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174 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_raven; |
175 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
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176 | 40021f08 | Anthony Liguori | } |
177 | 40021f08 | Anthony Liguori | |
178 | 4240abff | Andreas Färber | static const TypeInfo raven_info = { |
179 | 40021f08 | Anthony Liguori | .name = "raven",
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180 | 39bffca2 | Anthony Liguori | .parent = TYPE_PCI_DEVICE, |
181 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(RavenPCIState),
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182 | 40021f08 | Anthony Liguori | .class_init = raven_class_init, |
183 | 55526054 | Andreas Färber | }; |
184 | 55526054 | Andreas Färber | |
185 | 999e12bb | Anthony Liguori | static void raven_pcihost_class_init(ObjectClass *klass, void *data) |
186 | 999e12bb | Anthony Liguori | { |
187 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
188 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
189 | 999e12bb | Anthony Liguori | |
190 | 999e12bb | Anthony Liguori | k->init = raven_pcihost_init; |
191 | 39bffca2 | Anthony Liguori | dc->fw_name = "pci";
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192 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
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193 | 999e12bb | Anthony Liguori | } |
194 | 999e12bb | Anthony Liguori | |
195 | 4240abff | Andreas Färber | static const TypeInfo raven_pcihost_info = { |
196 | 03a6b667 | Andreas Färber | .name = TYPE_RAVEN_PCI_HOST_BRIDGE, |
197 | 8558d942 | Andreas Färber | .parent = TYPE_PCI_HOST_BRIDGE, |
198 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(PREPPCIState),
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199 | 999e12bb | Anthony Liguori | .class_init = raven_pcihost_class_init, |
200 | 8ca8c7bc | Andreas Färber | }; |
201 | 8ca8c7bc | Andreas Färber | |
202 | 83f7d43a | Andreas Färber | static void raven_register_types(void) |
203 | 55526054 | Andreas Färber | { |
204 | 39bffca2 | Anthony Liguori | type_register_static(&raven_pcihost_info); |
205 | 39bffca2 | Anthony Liguori | type_register_static(&raven_info); |
206 | 55526054 | Andreas Färber | } |
207 | 55526054 | Andreas Färber | |
208 | 83f7d43a | Andreas Färber | type_init(raven_register_types) |