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502a5395
PB
1/*
2 * QEMU Uninorth PCI host (for all Mac99 and newer machines)
3 *
4 * Copyright (c) 2006 Fabrice Bellard
5fafdf24 5 *
502a5395
PB
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 */
87ecb68b
PB
24#include "hw.h"
25#include "ppc_mac.h"
26#include "pci.h"
4f5e19e6 27#include "pci_host.h"
87ecb68b 28
f3902383
BS
29/* debug UniNorth */
30//#define DEBUG_UNIN
31
32#ifdef DEBUG_UNIN
001faf32
BS
33#define UNIN_DPRINTF(fmt, ...) \
34 do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
f3902383 35#else
001faf32 36#define UNIN_DPRINTF(fmt, ...)
f3902383
BS
37#endif
38
fa0be69a
AG
39static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e };
40
2e29bd04
BS
41typedef struct UNINState {
42 SysBusDevice busdev;
43 PCIHostState host_state;
44} UNINState;
502a5395 45
d2b59317 46static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
502a5395 47{
fa0be69a
AG
48 int retval;
49 int devfn = pci_dev->devfn & 0x00FFFFFF;
50
51 retval = (((devfn >> 11) & 0x1F) + irq_num) & 3;
52
53 return retval;
d2b59317
PB
54}
55
5d4e84c8 56static void pci_unin_set_irq(void *opaque, int irq_num, int level)
d2b59317 57{
5d4e84c8
JQ
58 qemu_irq *pic = opaque;
59
fa0be69a
AG
60 UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
61 unin_irq_line[irq_num], level);
62 qemu_set_irq(pic[unin_irq_line[irq_num]], level);
502a5395
PB
63}
64
f3902383
BS
65static void pci_unin_reset(void *opaque)
66{
67}
68
d86f0e32
AG
69static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
70{
71 uint32_t retval;
72
73 if (reg & (1u << 31)) {
74 /* XXX OpenBIOS compatibility hack */
75 retval = reg | (addr & 3);
76 } else if (reg & 1) {
77 /* CFA1 style */
78 retval = (reg & ~7u) | (addr & 7);
79 } else {
80 uint32_t slot, func;
81
82 /* Grab CFA0 style values */
83 slot = ffs(reg & 0xfffff800) - 1;
84 func = (reg >> 8) & 7;
85
86 /* ... and then convert them to x86 format */
87 /* config pointer */
88 retval = (reg & (0xff - 7)) | (addr & 7);
89 /* slot */
90 retval |= slot << 11;
91 /* fn */
92 retval |= func << 8;
93 }
94
95
96 UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
97 reg, addr, retval);
98
99 return retval;
100}
101
d2c33733
AK
102static void unin_data_write(void *opaque, target_phys_addr_t addr,
103 uint64_t val, unsigned len)
d86f0e32 104{
d2c33733
AK
105 UNINState *s = opaque;
106 UNIN_DPRINTF("write addr %" TARGET_FMT_plx " len %d val %"PRIx64"\n",
107 addr, len, val);
d86f0e32
AG
108 pci_data_write(s->host_state.bus,
109 unin_get_config_reg(s->host_state.config_reg, addr),
110 val, len);
111}
112
d2c33733
AK
113static uint64_t unin_data_read(void *opaque, target_phys_addr_t addr,
114 unsigned len)
d86f0e32 115{
d2c33733 116 UNINState *s = opaque;
d86f0e32
AG
117 uint32_t val;
118
119 val = pci_data_read(s->host_state.bus,
120 unin_get_config_reg(s->host_state.config_reg, addr),
121 len);
d2c33733
AK
122 UNIN_DPRINTF("read addr %" TARGET_FMT_plx " len %d val %x\n",
123 addr, len, val);
d86f0e32
AG
124 return val;
125}
126
d2c33733
AK
127static const MemoryRegionOps unin_data_ops = {
128 .read = unin_data_read,
129 .write = unin_data_write,
130 .endianness = DEVICE_LITTLE_ENDIAN,
131};
132
81a322d4 133static int pci_unin_main_init_device(SysBusDevice *dev)
502a5395
PB
134{
135 UNINState *s;
502a5395
PB
136
137 /* Use values found on a real PowerMac */
138 /* Uninorth main bus */
2e29bd04 139 s = FROM_SYSBUS(UNINState, dev);
502a5395 140
d2c33733
AK
141 memory_region_init_io(&s->host_state.conf_mem, &pci_host_conf_le_ops,
142 &s->host_state, "pci-conf-idx", 0x1000);
143 memory_region_init_io(&s->host_state.data_mem, &unin_data_ops, s,
144 "pci-conf-data", 0x1000);
145 sysbus_init_mmio_region(dev, &s->host_state.conf_mem);
146 sysbus_init_mmio_region(dev, &s->host_state.data_mem);
2e29bd04 147
2e29bd04 148 qemu_register_reset(pci_unin_reset, &s->host_state);
81a322d4 149 return 0;
2e29bd04
BS
150}
151
d2c33733 152
0f921197
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153static int pci_u3_agp_init_device(SysBusDevice *dev)
154{
155 UNINState *s;
0f921197
AG
156
157 /* Uninorth U3 AGP bus */
158 s = FROM_SYSBUS(UNINState, dev);
159
d2c33733
AK
160 memory_region_init_io(&s->host_state.conf_mem, &pci_host_conf_le_ops,
161 &s->host_state, "pci-conf-idx", 0x1000);
162 memory_region_init_io(&s->host_state.data_mem, &unin_data_ops, s,
163 "pci-conf-data", 0x1000);
164 sysbus_init_mmio_region(dev, &s->host_state.conf_mem);
165 sysbus_init_mmio_region(dev, &s->host_state.data_mem);
0f921197 166
0f921197
AG
167 qemu_register_reset(pci_unin_reset, &s->host_state);
168
169 return 0;
170}
171
81a322d4 172static int pci_unin_agp_init_device(SysBusDevice *dev)
2e29bd04
BS
173{
174 UNINState *s;
2e29bd04
BS
175
176 /* Uninorth AGP bus */
177 s = FROM_SYSBUS(UNINState, dev);
178
d2c33733
AK
179 memory_region_init_io(&s->host_state.conf_mem, &pci_host_conf_le_ops,
180 &s->host_state, "pci-conf-idx", 0x1000);
181 memory_region_init_io(&s->host_state.data_mem, &pci_host_data_le_ops,
182 &s->host_state, "pci-conf-data", 0x1000);
183 sysbus_init_mmio_region(dev, &s->host_state.conf_mem);
184 sysbus_init_mmio_region(dev, &s->host_state.data_mem);
81a322d4 185 return 0;
2e29bd04
BS
186}
187
81a322d4 188static int pci_unin_internal_init_device(SysBusDevice *dev)
2e29bd04
BS
189{
190 UNINState *s;
2e29bd04
BS
191
192 /* Uninorth internal bus */
193 s = FROM_SYSBUS(UNINState, dev);
194
d2c33733
AK
195 memory_region_init_io(&s->host_state.conf_mem, &pci_host_conf_le_ops,
196 &s->host_state, "pci-conf-idx", 0x1000);
197 memory_region_init_io(&s->host_state.data_mem, &pci_host_data_le_ops,
198 &s->host_state, "pci-conf-data", 0x1000);
199 sysbus_init_mmio_region(dev, &s->host_state.conf_mem);
200 sysbus_init_mmio_region(dev, &s->host_state.data_mem);
81a322d4 201 return 0;
2e29bd04
BS
202}
203
aee97b84
AK
204PCIBus *pci_pmac_init(qemu_irq *pic,
205 MemoryRegion *address_space_mem,
206 MemoryRegion *address_space_io)
2e29bd04
BS
207{
208 DeviceState *dev;
209 SysBusDevice *s;
210 UNINState *d;
211
212 /* Use values found on a real PowerMac */
213 /* Uninorth main bus */
18dd19a7 214 dev = qdev_create(NULL, "uni-north");
e23a1b33 215 qdev_init_nofail(dev);
2e29bd04
BS
216 s = sysbus_from_qdev(dev);
217 d = FROM_SYSBUS(UNINState, s);
cdd0935c 218 d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
2e29bd04 219 pci_unin_set_irq, pci_unin_map_irq,
aee97b84
AK
220 pic,
221 address_space_mem,
222 address_space_io,
1e39101c 223 PCI_DEVFN(11, 0), 4);
2e29bd04 224
60398748 225#if 0
520128bd 226 pci_create_simple(d->host_state.bus, PCI_DEVFN(11, 0), "uni-north");
60398748 227#endif
2e29bd04
BS
228
229 sysbus_mmio_map(s, 0, 0xf2800000);
230 sysbus_mmio_map(s, 1, 0xf2c00000);
231
232 /* DEC 21154 bridge */
233#if 0
234 /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
520128bd 235 pci_create_simple(d->host_state.bus, PCI_DEVFN(12, 0), "dec-21154");
2e29bd04
BS
236#endif
237
238 /* Uninorth AGP bus */
520128bd 239 pci_create_simple(d->host_state.bus, PCI_DEVFN(11, 0), "uni-north-agp");
18dd19a7 240 dev = qdev_create(NULL, "uni-north-agp");
d27d06f2
BS
241 qdev_init_nofail(dev);
242 s = sysbus_from_qdev(dev);
243 sysbus_mmio_map(s, 0, 0xf0800000);
244 sysbus_mmio_map(s, 1, 0xf0c00000);
2e29bd04
BS
245
246 /* Uninorth internal bus */
247#if 0
248 /* XXX: not needed for now */
520128bd 249 pci_create_simple(d->host_state.bus, PCI_DEVFN(14, 0), "uni-north-pci");
18dd19a7 250 dev = qdev_create(NULL, "uni-north-pci");
d27d06f2
BS
251 qdev_init_nofail(dev);
252 s = sysbus_from_qdev(dev);
253 sysbus_mmio_map(s, 0, 0xf4800000);
254 sysbus_mmio_map(s, 1, 0xf4c00000);
2e29bd04
BS
255#endif
256
257 return d->host_state.bus;
258}
259
aee97b84
AK
260PCIBus *pci_pmac_u3_init(qemu_irq *pic,
261 MemoryRegion *address_space_mem,
262 MemoryRegion *address_space_io)
0f921197
AG
263{
264 DeviceState *dev;
265 SysBusDevice *s;
266 UNINState *d;
267
268 /* Uninorth AGP bus */
269
270 dev = qdev_create(NULL, "u3-agp");
271 qdev_init_nofail(dev);
272 s = sysbus_from_qdev(dev);
273 d = FROM_SYSBUS(UNINState, s);
274
275 d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
276 pci_unin_set_irq, pci_unin_map_irq,
aee97b84
AK
277 pic,
278 address_space_mem,
279 address_space_io,
1e39101c 280 PCI_DEVFN(11, 0), 4);
0f921197
AG
281
282 sysbus_mmio_map(s, 0, 0xf0800000);
283 sysbus_mmio_map(s, 1, 0xf0c00000);
284
285 pci_create_simple(d->host_state.bus, 11 << 3, "u3-agp");
286
287 return d->host_state.bus;
288}
289
81a322d4 290static int unin_main_pci_host_init(PCIDevice *d)
2e29bd04 291{
502a5395
PB
292 d->config[0x0C] = 0x08; // cache_line_size
293 d->config[0x0D] = 0x10; // latency_timer
502a5395 294 d->config[0x34] = 0x00; // capabilities_pointer
81a322d4 295 return 0;
2e29bd04 296}
502a5395 297
81a322d4 298static int unin_agp_pci_host_init(PCIDevice *d)
2e29bd04 299{
502a5395
PB
300 d->config[0x0C] = 0x08; // cache_line_size
301 d->config[0x0D] = 0x10; // latency_timer
502a5395 302 // d->config[0x34] = 0x80; // capabilities_pointer
81a322d4 303 return 0;
2e29bd04 304}
502a5395 305
0f921197
AG
306static int u3_agp_pci_host_init(PCIDevice *d)
307{
0f921197
AG
308 /* cache line size */
309 d->config[0x0C] = 0x08;
310 /* latency timer */
311 d->config[0x0D] = 0x10;
0f921197
AG
312 return 0;
313}
314
81a322d4 315static int unin_internal_pci_host_init(PCIDevice *d)
2e29bd04 316{
502a5395
PB
317 d->config[0x0C] = 0x08; // cache_line_size
318 d->config[0x0D] = 0x10; // latency_timer
502a5395 319 d->config[0x34] = 0x00; // capabilities_pointer
81a322d4 320 return 0;
2e29bd04
BS
321}
322
323static PCIDeviceInfo unin_main_pci_host_info = {
18dd19a7 324 .qdev.name = "uni-north",
2e29bd04
BS
325 .qdev.size = sizeof(PCIDevice),
326 .init = unin_main_pci_host_init,
d7b61ecc
IY
327 .vendor_id = PCI_VENDOR_ID_APPLE,
328 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_PCI,
329 .revision = 0x00,
330 .class_id = PCI_CLASS_BRIDGE_HOST,
2e29bd04
BS
331};
332
0f921197
AG
333static PCIDeviceInfo u3_agp_pci_host_info = {
334 .qdev.name = "u3-agp",
335 .qdev.size = sizeof(PCIDevice),
336 .init = u3_agp_pci_host_init,
d7b61ecc
IY
337 .vendor_id = PCI_VENDOR_ID_APPLE,
338 .device_id = PCI_DEVICE_ID_APPLE_U3_AGP,
339 .revision = 0x00,
340 .class_id = PCI_CLASS_BRIDGE_HOST,
0f921197
AG
341};
342
2e29bd04 343static PCIDeviceInfo unin_agp_pci_host_info = {
18dd19a7 344 .qdev.name = "uni-north-agp",
2e29bd04
BS
345 .qdev.size = sizeof(PCIDevice),
346 .init = unin_agp_pci_host_init,
d7b61ecc
IY
347 .vendor_id = PCI_VENDOR_ID_APPLE,
348 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP,
349 .revision = 0x00,
350 .class_id = PCI_CLASS_BRIDGE_HOST,
2e29bd04
BS
351};
352
353static PCIDeviceInfo unin_internal_pci_host_info = {
18dd19a7 354 .qdev.name = "uni-north-pci",
2e29bd04
BS
355 .qdev.size = sizeof(PCIDevice),
356 .init = unin_internal_pci_host_init,
d7b61ecc
IY
357 .vendor_id = PCI_VENDOR_ID_APPLE,
358 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_I_PCI,
359 .revision = 0x00,
360 .class_id = PCI_CLASS_BRIDGE_HOST,
2e29bd04
BS
361};
362
363static void unin_register_devices(void)
364{
18dd19a7 365 sysbus_register_dev("uni-north", sizeof(UNINState),
2e29bd04
BS
366 pci_unin_main_init_device);
367 pci_qdev_register(&unin_main_pci_host_info);
0f921197
AG
368 sysbus_register_dev("u3-agp", sizeof(UNINState),
369 pci_u3_agp_init_device);
370 pci_qdev_register(&u3_agp_pci_host_info);
18dd19a7 371 sysbus_register_dev("uni-north-agp", sizeof(UNINState),
2e29bd04
BS
372 pci_unin_agp_init_device);
373 pci_qdev_register(&unin_agp_pci_host_info);
18dd19a7 374 sysbus_register_dev("uni-north-pci", sizeof(UNINState),
2e29bd04
BS
375 pci_unin_internal_init_device);
376 pci_qdev_register(&unin_internal_pci_host_info);
502a5395 377}
2e29bd04
BS
378
379device_init(unin_register_devices)
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