root / hw / prep_pci.c @ b072a3c8
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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 | 8ca8c7bc | Andreas Färber | #include "exec-memory.h" |
29 | 502a5395 | pbrook | |
30 | 8ca8c7bc | Andreas Färber | typedef struct PRePPCIState { |
31 | 8ca8c7bc | Andreas Färber | PCIHostState host_state; |
32 | 8ca8c7bc | Andreas Färber | qemu_irq irq[4];
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33 | 8ca8c7bc | Andreas Färber | } PREPPCIState; |
34 | 502a5395 | pbrook | |
35 | 55526054 | Andreas Färber | typedef struct RavenPCIState { |
36 | 55526054 | Andreas Färber | PCIDevice dev; |
37 | 55526054 | Andreas Färber | } RavenPCIState; |
38 | 55526054 | Andreas Färber | |
39 | c227f099 | Anthony Liguori | static inline uint32_t PPC_PCIIO_config(target_phys_addr_t addr) |
40 | 502a5395 | pbrook | { |
41 | 502a5395 | pbrook | int i;
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42 | 502a5395 | pbrook | |
43 | 502a5395 | pbrook | for(i = 0; i < 11; i++) { |
44 | 502a5395 | pbrook | if ((addr & (1 << (11 + i))) != 0) |
45 | 502a5395 | pbrook | break;
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46 | 502a5395 | pbrook | } |
47 | 502a5395 | pbrook | return (addr & 0x7ff) | (i << 11); |
48 | 502a5395 | pbrook | } |
49 | 502a5395 | pbrook | |
50 | 7e5610ff | Andreas Färber | static void ppc_pci_io_write(void *opaque, target_phys_addr_t addr, |
51 | 7e5610ff | Andreas Färber | uint64_t val, unsigned int size) |
52 | 502a5395 | pbrook | { |
53 | 502a5395 | pbrook | PREPPCIState *s = opaque; |
54 | 8ca8c7bc | Andreas Färber | pci_data_write(s->host_state.bus, PPC_PCIIO_config(addr), val, size); |
55 | 502a5395 | pbrook | } |
56 | 502a5395 | pbrook | |
57 | 7e5610ff | Andreas Färber | static uint64_t ppc_pci_io_read(void *opaque, target_phys_addr_t addr, |
58 | 7e5610ff | Andreas Färber | unsigned int size) |
59 | 502a5395 | pbrook | { |
60 | 502a5395 | pbrook | PREPPCIState *s = opaque; |
61 | 8ca8c7bc | Andreas Färber | return pci_data_read(s->host_state.bus, PPC_PCIIO_config(addr), size);
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62 | 502a5395 | pbrook | } |
63 | 502a5395 | pbrook | |
64 | f81138ce | Avi Kivity | static const MemoryRegionOps PPC_PCIIO_ops = { |
65 | 7e5610ff | Andreas Färber | .read = ppc_pci_io_read, |
66 | 7e5610ff | Andreas Färber | .write = ppc_pci_io_write, |
67 | 9c95f183 | Andreas Färber | .endianness = DEVICE_LITTLE_ENDIAN, |
68 | 502a5395 | pbrook | }; |
69 | 502a5395 | pbrook | |
70 | d2b59317 | pbrook | static int prep_map_irq(PCIDevice *pci_dev, int irq_num) |
71 | 502a5395 | pbrook | { |
72 | 80b3ada7 | pbrook | return (irq_num + (pci_dev->devfn >> 3)) & 1; |
73 | d2b59317 | pbrook | } |
74 | d2b59317 | pbrook | |
75 | 5d4e84c8 | Juan Quintela | static void prep_set_irq(void *opaque, int irq_num, int level) |
76 | d2b59317 | pbrook | { |
77 | 5d4e84c8 | Juan Quintela | qemu_irq *pic = opaque; |
78 | 5d4e84c8 | Juan Quintela | |
79 | 8ca8c7bc | Andreas Färber | qemu_set_irq(pic[irq_num] , level); |
80 | 502a5395 | pbrook | } |
81 | 502a5395 | pbrook | |
82 | 8ca8c7bc | Andreas Färber | static int raven_pcihost_init(SysBusDevice *dev) |
83 | 502a5395 | pbrook | { |
84 | 8ca8c7bc | Andreas Färber | PCIHostState *h = FROM_SYSBUS(PCIHostState, dev); |
85 | 8ca8c7bc | Andreas Färber | PREPPCIState *s = DO_UPCAST(PREPPCIState, host_state, h); |
86 | 8ca8c7bc | Andreas Färber | MemoryRegion *address_space_mem = get_system_memory(); |
87 | 8ca8c7bc | Andreas Färber | MemoryRegion *address_space_io = get_system_io(); |
88 | 8ca8c7bc | Andreas Färber | PCIBus *bus; |
89 | 8ca8c7bc | Andreas Färber | int i;
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90 | 8ca8c7bc | Andreas Färber | |
91 | 8ca8c7bc | Andreas Färber | for (i = 0; i < 4; i++) { |
92 | 8ca8c7bc | Andreas Färber | sysbus_init_irq(dev, &s->irq[i]); |
93 | 8ca8c7bc | Andreas Färber | } |
94 | 502a5395 | pbrook | |
95 | 8ca8c7bc | Andreas Färber | bus = pci_register_bus(&h->busdev.qdev, NULL,
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96 | 8ca8c7bc | Andreas Färber | prep_set_irq, prep_map_irq, s->irq, |
97 | 8ca8c7bc | Andreas Färber | address_space_mem, address_space_io, 0, 4); |
98 | 8ca8c7bc | Andreas Färber | h->bus = bus; |
99 | 502a5395 | pbrook | |
100 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->conf_mem, &pci_host_conf_be_ops, s, |
101 | d0ed8076 | Avi Kivity | "pci-conf-idx", 1); |
102 | 8ca8c7bc | Andreas Färber | sysbus_add_io(dev, 0xcf8, &h->conf_mem);
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103 | 8ca8c7bc | Andreas Färber | sysbus_init_ioports(&h->busdev, 0xcf8, 1); |
104 | d0ed8076 | Avi Kivity | |
105 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->data_mem, &pci_host_data_be_ops, s, |
106 | d0ed8076 | Avi Kivity | "pci-conf-data", 1); |
107 | 8ca8c7bc | Andreas Färber | sysbus_add_io(dev, 0xcfc, &h->data_mem);
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108 | 8ca8c7bc | Andreas Färber | sysbus_init_ioports(&h->busdev, 0xcfc, 1); |
109 | 502a5395 | pbrook | |
110 | 8ca8c7bc | Andreas Färber | memory_region_init_io(&h->mmcfg, &PPC_PCIIO_ops, s, "pciio", 0x00400000); |
111 | 8ca8c7bc | Andreas Färber | memory_region_add_subregion(address_space_mem, 0x80800000, &h->mmcfg);
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112 | 502a5395 | pbrook | |
113 | 8ca8c7bc | Andreas Färber | pci_create_simple(bus, 0, "raven"); |
114 | 55526054 | Andreas Färber | |
115 | 8ca8c7bc | Andreas Färber | return 0; |
116 | 55526054 | Andreas Färber | } |
117 | 55526054 | Andreas Färber | |
118 | 55526054 | Andreas Färber | static int raven_init(PCIDevice *d) |
119 | 55526054 | Andreas Färber | { |
120 | 502a5395 | pbrook | d->config[0x0C] = 0x08; // cache_line_size |
121 | 502a5395 | pbrook | d->config[0x0D] = 0x10; // latency_timer |
122 | 502a5395 | pbrook | d->config[0x34] = 0x00; // capabilities_pointer |
123 | 502a5395 | pbrook | |
124 | 55526054 | Andreas Färber | return 0; |
125 | 502a5395 | pbrook | } |
126 | 55526054 | Andreas Färber | |
127 | 55526054 | Andreas Färber | static const VMStateDescription vmstate_raven = { |
128 | 55526054 | Andreas Färber | .name = "raven",
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129 | 55526054 | Andreas Färber | .version_id = 0,
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130 | 55526054 | Andreas Färber | .minimum_version_id = 0,
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131 | 55526054 | Andreas Färber | .fields = (VMStateField[]) { |
132 | 55526054 | Andreas Färber | VMSTATE_PCI_DEVICE(dev, RavenPCIState), |
133 | 55526054 | Andreas Färber | VMSTATE_END_OF_LIST() |
134 | 55526054 | Andreas Färber | }, |
135 | 55526054 | Andreas Färber | }; |
136 | 55526054 | Andreas Färber | |
137 | 40021f08 | Anthony Liguori | static void raven_class_init(ObjectClass *klass, void *data) |
138 | 40021f08 | Anthony Liguori | { |
139 | 40021f08 | Anthony Liguori | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
140 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
141 | 40021f08 | Anthony Liguori | |
142 | 40021f08 | Anthony Liguori | k->init = raven_init; |
143 | 40021f08 | Anthony Liguori | k->vendor_id = PCI_VENDOR_ID_MOTOROLA; |
144 | 40021f08 | Anthony Liguori | k->device_id = PCI_DEVICE_ID_MOTOROLA_RAVEN; |
145 | 40021f08 | Anthony Liguori | k->revision = 0x00;
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146 | 40021f08 | Anthony Liguori | k->class_id = PCI_CLASS_BRIDGE_HOST; |
147 | 39bffca2 | Anthony Liguori | dc->desc = "PReP Host Bridge - Motorola Raven";
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148 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_raven; |
149 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
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150 | 40021f08 | Anthony Liguori | } |
151 | 40021f08 | Anthony Liguori | |
152 | 39bffca2 | Anthony Liguori | static TypeInfo raven_info = {
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153 | 40021f08 | Anthony Liguori | .name = "raven",
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154 | 39bffca2 | Anthony Liguori | .parent = TYPE_PCI_DEVICE, |
155 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(RavenPCIState),
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156 | 40021f08 | Anthony Liguori | .class_init = raven_class_init, |
157 | 55526054 | Andreas Färber | }; |
158 | 55526054 | Andreas Färber | |
159 | 999e12bb | Anthony Liguori | static void raven_pcihost_class_init(ObjectClass *klass, void *data) |
160 | 999e12bb | Anthony Liguori | { |
161 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
162 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
163 | 999e12bb | Anthony Liguori | |
164 | 999e12bb | Anthony Liguori | k->init = raven_pcihost_init; |
165 | 39bffca2 | Anthony Liguori | dc->fw_name = "pci";
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166 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
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167 | 999e12bb | Anthony Liguori | } |
168 | 999e12bb | Anthony Liguori | |
169 | 39bffca2 | Anthony Liguori | static TypeInfo raven_pcihost_info = {
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170 | 999e12bb | Anthony Liguori | .name = "raven-pcihost",
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171 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
172 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(PREPPCIState),
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173 | 999e12bb | Anthony Liguori | .class_init = raven_pcihost_class_init, |
174 | 8ca8c7bc | Andreas Färber | }; |
175 | 8ca8c7bc | Andreas Färber | |
176 | 83f7d43a | Andreas Färber | static void raven_register_types(void) |
177 | 55526054 | Andreas Färber | { |
178 | 39bffca2 | Anthony Liguori | type_register_static(&raven_pcihost_info); |
179 | 39bffca2 | Anthony Liguori | type_register_static(&raven_info); |
180 | 55526054 | Andreas Färber | } |
181 | 55526054 | Andreas Färber | |
182 | 83f7d43a | Andreas Färber | type_init(raven_register_types) |