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[mirror_qemu.git] / hw / pci-host / uninorth.c
1 /*
2 * QEMU Uninorth PCI host (for all Mac99 and newer machines)
3 *
4 * Copyright (c) 2006 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "hw/irq.h"
27 #include "hw/qdev-properties.h"
28 #include "qemu/module.h"
29 #include "hw/pci/pci_device.h"
30 #include "hw/pci/pci_host.h"
31 #include "hw/pci-host/uninorth.h"
32 #include "trace.h"
33
34 static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
35 {
36 return (irq_num + (pci_dev->devfn >> 3)) & 3;
37 }
38
39 static void pci_unin_set_irq(void *opaque, int irq_num, int level)
40 {
41 UNINHostState *s = opaque;
42
43 trace_unin_set_irq(irq_num, level);
44 qemu_set_irq(s->irqs[irq_num], level);
45 }
46
47 static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
48 {
49 uint32_t retval;
50
51 if (reg & (1u << 31)) {
52 /* XXX OpenBIOS compatibility hack */
53 retval = reg | (addr & 3);
54 } else if (reg & 1) {
55 /* CFA1 style */
56 retval = (reg & ~7u) | (addr & 7);
57 } else {
58 uint32_t slot, func;
59
60 /* Grab CFA0 style values */
61 slot = ctz32(reg & 0xfffff800);
62 if (slot == 32) {
63 slot = -1; /* XXX: should this be 0? */
64 }
65 func = PCI_FUNC(reg >> 8);
66
67 /* ... and then convert them to x86 format */
68 /* config pointer */
69 retval = (reg & (0xff - 7)) | (addr & 7);
70 /* slot, fn */
71 retval |= PCI_DEVFN(slot, func) << 8;
72 }
73
74 trace_unin_get_config_reg(reg, addr, retval);
75
76 return retval;
77 }
78
79 static void unin_data_write(void *opaque, hwaddr addr,
80 uint64_t val, unsigned len)
81 {
82 UNINHostState *s = opaque;
83 PCIHostState *phb = PCI_HOST_BRIDGE(s);
84 trace_unin_data_write(addr, len, val);
85 pci_data_write(phb->bus,
86 unin_get_config_reg(phb->config_reg, addr),
87 val, len);
88 }
89
90 static uint64_t unin_data_read(void *opaque, hwaddr addr,
91 unsigned len)
92 {
93 UNINHostState *s = opaque;
94 PCIHostState *phb = PCI_HOST_BRIDGE(s);
95 uint32_t val;
96
97 val = pci_data_read(phb->bus,
98 unin_get_config_reg(phb->config_reg, addr),
99 len);
100 trace_unin_data_read(addr, len, val);
101 return val;
102 }
103
104 static const MemoryRegionOps unin_data_ops = {
105 .read = unin_data_read,
106 .write = unin_data_write,
107 .endianness = DEVICE_LITTLE_ENDIAN,
108 };
109
110 static char *pci_unin_main_ofw_unit_address(const SysBusDevice *dev)
111 {
112 UNINHostState *s = UNI_NORTH_PCI_HOST_BRIDGE(dev);
113
114 return g_strdup_printf("%x", s->ofw_addr);
115 }
116
117 static void pci_unin_main_realize(DeviceState *dev, Error **errp)
118 {
119 UNINHostState *s = UNI_NORTH_PCI_HOST_BRIDGE(dev);
120 PCIHostState *h = PCI_HOST_BRIDGE(dev);
121
122 h->bus = pci_register_root_bus(dev, NULL,
123 pci_unin_set_irq, pci_unin_map_irq,
124 s,
125 &s->pci_mmio,
126 &s->pci_io,
127 PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
128
129 pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north-pci");
130
131 /*
132 * DEC 21154 bridge was unused for many years, this comment is
133 * a placeholder for whoever wishes to resurrect it
134 */
135 }
136
137 static void pci_unin_main_init(Object *obj)
138 {
139 UNINHostState *s = UNI_NORTH_PCI_HOST_BRIDGE(obj);
140 SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
141 PCIHostState *h = PCI_HOST_BRIDGE(obj);
142
143 /* Use values found on a real PowerMac */
144 /* Uninorth main bus */
145 memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
146 obj, "unin-pci-conf-idx", 0x1000);
147 memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, obj,
148 "unin-pci-conf-data", 0x1000);
149
150 memory_region_init(&s->pci_mmio, OBJECT(s), "unin-pci-mmio",
151 0x100000000ULL);
152 memory_region_init_io(&s->pci_io, OBJECT(s), &unassigned_io_ops, obj,
153 "unin-pci-isa-mmio", 0x00800000);
154
155 memory_region_init_alias(&s->pci_hole, OBJECT(s),
156 "unin-pci-hole", &s->pci_mmio,
157 0x80000000ULL, 0x10000000ULL);
158
159 sysbus_init_mmio(sbd, &h->conf_mem);
160 sysbus_init_mmio(sbd, &h->data_mem);
161 sysbus_init_mmio(sbd, &s->pci_hole);
162 sysbus_init_mmio(sbd, &s->pci_io);
163
164 qdev_init_gpio_out(DEVICE(obj), s->irqs, ARRAY_SIZE(s->irqs));
165 }
166
167 static void pci_u3_agp_realize(DeviceState *dev, Error **errp)
168 {
169 UNINHostState *s = U3_AGP_HOST_BRIDGE(dev);
170 PCIHostState *h = PCI_HOST_BRIDGE(dev);
171
172 h->bus = pci_register_root_bus(dev, NULL,
173 pci_unin_set_irq, pci_unin_map_irq,
174 s,
175 &s->pci_mmio,
176 &s->pci_io,
177 PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
178
179 pci_create_simple(h->bus, PCI_DEVFN(11, 0), "u3-agp");
180 }
181
182 static void pci_u3_agp_init(Object *obj)
183 {
184 UNINHostState *s = U3_AGP_HOST_BRIDGE(obj);
185 SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
186 PCIHostState *h = PCI_HOST_BRIDGE(obj);
187
188 /* Uninorth U3 AGP bus */
189 memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
190 obj, "unin-pci-conf-idx", 0x1000);
191 memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, obj,
192 "unin-pci-conf-data", 0x1000);
193
194 memory_region_init(&s->pci_mmio, OBJECT(s), "unin-pci-mmio",
195 0x100000000ULL);
196 memory_region_init_io(&s->pci_io, OBJECT(s), &unassigned_io_ops, obj,
197 "unin-pci-isa-mmio", 0x00800000);
198
199 memory_region_init_alias(&s->pci_hole, OBJECT(s),
200 "unin-pci-hole", &s->pci_mmio,
201 0x80000000ULL, 0x70000000ULL);
202
203 sysbus_init_mmio(sbd, &h->conf_mem);
204 sysbus_init_mmio(sbd, &h->data_mem);
205 sysbus_init_mmio(sbd, &s->pci_hole);
206 sysbus_init_mmio(sbd, &s->pci_io);
207
208 qdev_init_gpio_out(DEVICE(obj), s->irqs, ARRAY_SIZE(s->irqs));
209 }
210
211 static void pci_unin_agp_realize(DeviceState *dev, Error **errp)
212 {
213 UNINHostState *s = UNI_NORTH_AGP_HOST_BRIDGE(dev);
214 PCIHostState *h = PCI_HOST_BRIDGE(dev);
215
216 h->bus = pci_register_root_bus(dev, NULL,
217 pci_unin_set_irq, pci_unin_map_irq,
218 s,
219 &s->pci_mmio,
220 &s->pci_io,
221 PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
222
223 pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north-agp");
224 }
225
226 static void pci_unin_agp_init(Object *obj)
227 {
228 UNINHostState *s = UNI_NORTH_AGP_HOST_BRIDGE(obj);
229 SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
230 PCIHostState *h = PCI_HOST_BRIDGE(obj);
231
232 /* Uninorth AGP bus */
233 memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
234 obj, "unin-agp-conf-idx", 0x1000);
235 memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops,
236 obj, "unin-agp-conf-data", 0x1000);
237
238 sysbus_init_mmio(sbd, &h->conf_mem);
239 sysbus_init_mmio(sbd, &h->data_mem);
240
241 qdev_init_gpio_out(DEVICE(obj), s->irqs, ARRAY_SIZE(s->irqs));
242 }
243
244 static void pci_unin_internal_realize(DeviceState *dev, Error **errp)
245 {
246 UNINHostState *s = UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE(dev);
247 PCIHostState *h = PCI_HOST_BRIDGE(dev);
248
249 h->bus = pci_register_root_bus(dev, NULL,
250 pci_unin_set_irq, pci_unin_map_irq,
251 s,
252 &s->pci_mmio,
253 &s->pci_io,
254 PCI_DEVFN(14, 0), 4, TYPE_PCI_BUS);
255
256 pci_create_simple(h->bus, PCI_DEVFN(14, 0), "uni-north-internal-pci");
257 }
258
259 static void pci_unin_internal_init(Object *obj)
260 {
261 UNINHostState *s = UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE(obj);
262 SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
263 PCIHostState *h = PCI_HOST_BRIDGE(obj);
264
265 /* Uninorth internal bus */
266 memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
267 obj, "unin-pci-conf-idx", 0x1000);
268 memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops,
269 obj, "unin-pci-conf-data", 0x1000);
270
271 sysbus_init_mmio(sbd, &h->conf_mem);
272 sysbus_init_mmio(sbd, &h->data_mem);
273
274 qdev_init_gpio_out(DEVICE(obj), s->irqs, ARRAY_SIZE(s->irqs));
275 }
276
277 static void unin_main_pci_host_realize(PCIDevice *d, Error **errp)
278 {
279 d->config[PCI_CACHE_LINE_SIZE] = 0x08;
280 d->config[PCI_LATENCY_TIMER] = 0x10;
281 d->config[PCI_CAPABILITY_LIST] = 0x00;
282
283 /*
284 * Set kMacRISCPCIAddressSelect (0x48) register to indicate PCI
285 * memory space with base 0x80000000, size 0x10000000 for Apple's
286 * AppleMacRiscPCI driver
287 */
288 d->config[0x48] = 0x0;
289 d->config[0x49] = 0x0;
290 d->config[0x4a] = 0x0;
291 d->config[0x4b] = 0x1;
292 }
293
294 static void unin_agp_pci_host_realize(PCIDevice *d, Error **errp)
295 {
296 d->config[PCI_CACHE_LINE_SIZE] = 0x08;
297 d->config[PCI_LATENCY_TIMER] = 0x10;
298 /* d->config[PCI_CAPABILITY_LIST] = 0x80; */
299 }
300
301 static void u3_agp_pci_host_realize(PCIDevice *d, Error **errp)
302 {
303 d->config[PCI_CACHE_LINE_SIZE] = 0x08;
304 d->config[PCI_LATENCY_TIMER] = 0x10;
305 }
306
307 static void unin_internal_pci_host_realize(PCIDevice *d, Error **errp)
308 {
309 d->config[PCI_CACHE_LINE_SIZE] = 0x08;
310 d->config[PCI_LATENCY_TIMER] = 0x10;
311 d->config[PCI_CAPABILITY_LIST] = 0x00;
312 }
313
314 static void unin_main_pci_host_class_init(ObjectClass *klass, void *data)
315 {
316 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
317 DeviceClass *dc = DEVICE_CLASS(klass);
318
319 k->realize = unin_main_pci_host_realize;
320 k->vendor_id = PCI_VENDOR_ID_APPLE;
321 k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_PCI;
322 k->revision = 0x00;
323 k->class_id = PCI_CLASS_BRIDGE_HOST;
324 /*
325 * PCI-facing part of the host bridge, not usable without the
326 * host-facing part, which can't be device_add'ed, yet.
327 */
328 dc->user_creatable = false;
329 }
330
331 static const TypeInfo unin_main_pci_host_info = {
332 .name = "uni-north-pci",
333 .parent = TYPE_PCI_DEVICE,
334 .instance_size = sizeof(PCIDevice),
335 .class_init = unin_main_pci_host_class_init,
336 .interfaces = (InterfaceInfo[]) {
337 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
338 { },
339 },
340 };
341
342 static void u3_agp_pci_host_class_init(ObjectClass *klass, void *data)
343 {
344 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
345 DeviceClass *dc = DEVICE_CLASS(klass);
346
347 k->realize = u3_agp_pci_host_realize;
348 k->vendor_id = PCI_VENDOR_ID_APPLE;
349 k->device_id = PCI_DEVICE_ID_APPLE_U3_AGP;
350 k->revision = 0x00;
351 k->class_id = PCI_CLASS_BRIDGE_HOST;
352 /*
353 * PCI-facing part of the host bridge, not usable without the
354 * host-facing part, which can't be device_add'ed, yet.
355 */
356 dc->user_creatable = false;
357 }
358
359 static const TypeInfo u3_agp_pci_host_info = {
360 .name = "u3-agp",
361 .parent = TYPE_PCI_DEVICE,
362 .instance_size = sizeof(PCIDevice),
363 .class_init = u3_agp_pci_host_class_init,
364 .interfaces = (InterfaceInfo[]) {
365 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
366 { },
367 },
368 };
369
370 static void unin_agp_pci_host_class_init(ObjectClass *klass, void *data)
371 {
372 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
373 DeviceClass *dc = DEVICE_CLASS(klass);
374
375 k->realize = unin_agp_pci_host_realize;
376 k->vendor_id = PCI_VENDOR_ID_APPLE;
377 k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP;
378 k->revision = 0x00;
379 k->class_id = PCI_CLASS_BRIDGE_HOST;
380 /*
381 * PCI-facing part of the host bridge, not usable without the
382 * host-facing part, which can't be device_add'ed, yet.
383 */
384 dc->user_creatable = false;
385 }
386
387 static const TypeInfo unin_agp_pci_host_info = {
388 .name = "uni-north-agp",
389 .parent = TYPE_PCI_DEVICE,
390 .instance_size = sizeof(PCIDevice),
391 .class_init = unin_agp_pci_host_class_init,
392 .interfaces = (InterfaceInfo[]) {
393 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
394 { },
395 },
396 };
397
398 static void unin_internal_pci_host_class_init(ObjectClass *klass, void *data)
399 {
400 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
401 DeviceClass *dc = DEVICE_CLASS(klass);
402
403 k->realize = unin_internal_pci_host_realize;
404 k->vendor_id = PCI_VENDOR_ID_APPLE;
405 k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_I_PCI;
406 k->revision = 0x00;
407 k->class_id = PCI_CLASS_BRIDGE_HOST;
408 /*
409 * PCI-facing part of the host bridge, not usable without the
410 * host-facing part, which can't be device_add'ed, yet.
411 */
412 dc->user_creatable = false;
413 }
414
415 static const TypeInfo unin_internal_pci_host_info = {
416 .name = "uni-north-internal-pci",
417 .parent = TYPE_PCI_DEVICE,
418 .instance_size = sizeof(PCIDevice),
419 .class_init = unin_internal_pci_host_class_init,
420 .interfaces = (InterfaceInfo[]) {
421 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
422 { },
423 },
424 };
425
426 static Property pci_unin_main_pci_host_props[] = {
427 DEFINE_PROP_UINT32("ofw-addr", UNINHostState, ofw_addr, -1),
428 DEFINE_PROP_END_OF_LIST()
429 };
430
431 static void pci_unin_main_class_init(ObjectClass *klass, void *data)
432 {
433 DeviceClass *dc = DEVICE_CLASS(klass);
434 SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
435
436 dc->realize = pci_unin_main_realize;
437 device_class_set_props(dc, pci_unin_main_pci_host_props);
438 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
439 dc->fw_name = "pci";
440 sbc->explicit_ofw_unit_address = pci_unin_main_ofw_unit_address;
441 }
442
443 static const TypeInfo pci_unin_main_info = {
444 .name = TYPE_UNI_NORTH_PCI_HOST_BRIDGE,
445 .parent = TYPE_PCI_HOST_BRIDGE,
446 .instance_size = sizeof(UNINHostState),
447 .instance_init = pci_unin_main_init,
448 .class_init = pci_unin_main_class_init,
449 };
450
451 static void pci_u3_agp_class_init(ObjectClass *klass, void *data)
452 {
453 DeviceClass *dc = DEVICE_CLASS(klass);
454
455 dc->realize = pci_u3_agp_realize;
456 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
457 }
458
459 static const TypeInfo pci_u3_agp_info = {
460 .name = TYPE_U3_AGP_HOST_BRIDGE,
461 .parent = TYPE_PCI_HOST_BRIDGE,
462 .instance_size = sizeof(UNINHostState),
463 .instance_init = pci_u3_agp_init,
464 .class_init = pci_u3_agp_class_init,
465 };
466
467 static void pci_unin_agp_class_init(ObjectClass *klass, void *data)
468 {
469 DeviceClass *dc = DEVICE_CLASS(klass);
470
471 dc->realize = pci_unin_agp_realize;
472 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
473 }
474
475 static const TypeInfo pci_unin_agp_info = {
476 .name = TYPE_UNI_NORTH_AGP_HOST_BRIDGE,
477 .parent = TYPE_PCI_HOST_BRIDGE,
478 .instance_size = sizeof(UNINHostState),
479 .instance_init = pci_unin_agp_init,
480 .class_init = pci_unin_agp_class_init,
481 };
482
483 static void pci_unin_internal_class_init(ObjectClass *klass, void *data)
484 {
485 DeviceClass *dc = DEVICE_CLASS(klass);
486
487 dc->realize = pci_unin_internal_realize;
488 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
489 }
490
491 static const TypeInfo pci_unin_internal_info = {
492 .name = TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE,
493 .parent = TYPE_PCI_HOST_BRIDGE,
494 .instance_size = sizeof(UNINHostState),
495 .instance_init = pci_unin_internal_init,
496 .class_init = pci_unin_internal_class_init,
497 };
498
499 /* UniN device */
500 static void unin_write(void *opaque, hwaddr addr, uint64_t value,
501 unsigned size)
502 {
503 trace_unin_write(addr, value);
504 }
505
506 static uint64_t unin_read(void *opaque, hwaddr addr, unsigned size)
507 {
508 uint32_t value;
509
510 switch (addr) {
511 case 0:
512 value = UNINORTH_VERSION_10A;
513 break;
514 default:
515 value = 0;
516 }
517
518 trace_unin_read(addr, value);
519
520 return value;
521 }
522
523 static const MemoryRegionOps unin_ops = {
524 .read = unin_read,
525 .write = unin_write,
526 .endianness = DEVICE_BIG_ENDIAN,
527 };
528
529 static void unin_init(Object *obj)
530 {
531 UNINState *s = UNI_NORTH(obj);
532 SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
533
534 memory_region_init_io(&s->mem, obj, &unin_ops, s, "unin", 0x1000);
535
536 sysbus_init_mmio(sbd, &s->mem);
537 }
538
539 static void unin_class_init(ObjectClass *klass, void *data)
540 {
541 DeviceClass *dc = DEVICE_CLASS(klass);
542
543 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
544 }
545
546 static const TypeInfo unin_info = {
547 .name = TYPE_UNI_NORTH,
548 .parent = TYPE_SYS_BUS_DEVICE,
549 .instance_size = sizeof(UNINState),
550 .instance_init = unin_init,
551 .class_init = unin_class_init,
552 };
553
554 static void unin_register_types(void)
555 {
556 type_register_static(&unin_main_pci_host_info);
557 type_register_static(&u3_agp_pci_host_info);
558 type_register_static(&unin_agp_pci_host_info);
559 type_register_static(&unin_internal_pci_host_info);
560
561 type_register_static(&pci_unin_main_info);
562 type_register_static(&pci_u3_agp_info);
563 type_register_static(&pci_unin_agp_info);
564 type_register_static(&pci_unin_internal_info);
565
566 type_register_static(&unin_info);
567 }
568
569 type_init(unin_register_types)