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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
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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;
d86f0e32 44 ReadWriteHandler data_handler;
2e29bd04 45} UNINState;
502a5395 46
d2b59317 47static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
502a5395 48{
fa0be69a
AG
49 int retval;
50 int devfn = pci_dev->devfn & 0x00FFFFFF;
51
52 retval = (((devfn >> 11) & 0x1F) + irq_num) & 3;
53
54 return retval;
d2b59317
PB
55}
56
5d4e84c8 57static void pci_unin_set_irq(void *opaque, int irq_num, int level)
d2b59317 58{
5d4e84c8
JQ
59 qemu_irq *pic = opaque;
60
fa0be69a
AG
61 UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
62 unin_irq_line[irq_num], level);
63 qemu_set_irq(pic[unin_irq_line[irq_num]], level);
502a5395
PB
64}
65
f3902383
BS
66static void pci_unin_reset(void *opaque)
67{
68}
69
d86f0e32
AG
70static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
71{
72 uint32_t retval;
73
74 if (reg & (1u << 31)) {
75 /* XXX OpenBIOS compatibility hack */
76 retval = reg | (addr & 3);
77 } else if (reg & 1) {
78 /* CFA1 style */
79 retval = (reg & ~7u) | (addr & 7);
80 } else {
81 uint32_t slot, func;
82
83 /* Grab CFA0 style values */
84 slot = ffs(reg & 0xfffff800) - 1;
85 func = (reg >> 8) & 7;
86
87 /* ... and then convert them to x86 format */
88 /* config pointer */
89 retval = (reg & (0xff - 7)) | (addr & 7);
90 /* slot */
91 retval |= slot << 11;
92 /* fn */
93 retval |= func << 8;
94 }
95
96
97 UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
98 reg, addr, retval);
99
100 return retval;
101}
102
103static void unin_data_write(ReadWriteHandler *handler,
104 pcibus_t addr, uint32_t val, int len)
105{
106 UNINState *s = container_of(handler, UNINState, data_handler);
d86f0e32
AG
107 UNIN_DPRINTF("write addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val);
108 pci_data_write(s->host_state.bus,
109 unin_get_config_reg(s->host_state.config_reg, addr),
110 val, len);
111}
112
113static uint32_t unin_data_read(ReadWriteHandler *handler,
114 pcibus_t addr, int len)
115{
116 UNINState *s = container_of(handler, UNINState, data_handler);
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);
122 UNIN_DPRINTF("read addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val);
d86f0e32
AG
123 return val;
124}
125
81a322d4 126static int pci_unin_main_init_device(SysBusDevice *dev)
502a5395
PB
127{
128 UNINState *s;
502a5395
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129 int pci_mem_config, pci_mem_data;
130
131 /* Use values found on a real PowerMac */
132 /* Uninorth main bus */
2e29bd04 133 s = FROM_SYSBUS(UNINState, dev);
502a5395 134
6ebf5905
AG
135 pci_mem_config = pci_host_conf_register_mmio(&s->host_state,
136 DEVICE_LITTLE_ENDIAN);
d86f0e32
AG
137 s->data_handler.read = unin_data_read;
138 s->data_handler.write = unin_data_write;
6bef0436 139 pci_mem_data = cpu_register_io_memory_simple(&s->data_handler,
f23cea4d 140 DEVICE_LITTLE_ENDIAN);
2e29bd04
BS
141 sysbus_init_mmio(dev, 0x1000, pci_mem_config);
142 sysbus_init_mmio(dev, 0x1000, pci_mem_data);
143
2e29bd04 144 qemu_register_reset(pci_unin_reset, &s->host_state);
81a322d4 145 return 0;
2e29bd04
BS
146}
147
0f921197
AG
148static int pci_u3_agp_init_device(SysBusDevice *dev)
149{
150 UNINState *s;
151 int pci_mem_config, pci_mem_data;
152
153 /* Uninorth U3 AGP bus */
154 s = FROM_SYSBUS(UNINState, dev);
155
6ebf5905
AG
156 pci_mem_config = pci_host_conf_register_mmio(&s->host_state,
157 DEVICE_LITTLE_ENDIAN);
0f921197
AG
158 s->data_handler.read = unin_data_read;
159 s->data_handler.write = unin_data_write;
6bef0436 160 pci_mem_data = cpu_register_io_memory_simple(&s->data_handler,
f23cea4d 161 DEVICE_LITTLE_ENDIAN);
0f921197
AG
162 sysbus_init_mmio(dev, 0x1000, pci_mem_config);
163 sysbus_init_mmio(dev, 0x1000, pci_mem_data);
164
0f921197
AG
165 qemu_register_reset(pci_unin_reset, &s->host_state);
166
167 return 0;
168}
169
81a322d4 170static int pci_unin_agp_init_device(SysBusDevice *dev)
2e29bd04
BS
171{
172 UNINState *s;
173 int pci_mem_config, pci_mem_data;
174
175 /* Uninorth AGP bus */
176 s = FROM_SYSBUS(UNINState, dev);
177
6ebf5905
AG
178 pci_mem_config = pci_host_conf_register_mmio(&s->host_state,
179 DEVICE_LITTLE_ENDIAN);
180 pci_mem_data = pci_host_data_register_mmio(&s->host_state,
181 DEVICE_LITTLE_ENDIAN);
2e29bd04
BS
182 sysbus_init_mmio(dev, 0x1000, pci_mem_config);
183 sysbus_init_mmio(dev, 0x1000, pci_mem_data);
81a322d4 184 return 0;
2e29bd04
BS
185}
186
81a322d4 187static int pci_unin_internal_init_device(SysBusDevice *dev)
2e29bd04
BS
188{
189 UNINState *s;
190 int pci_mem_config, pci_mem_data;
191
192 /* Uninorth internal bus */
193 s = FROM_SYSBUS(UNINState, dev);
194
6ebf5905
AG
195 pci_mem_config = pci_host_conf_register_mmio(&s->host_state,
196 DEVICE_LITTLE_ENDIAN);
197 pci_mem_data = pci_host_data_register_mmio(&s->host_state,
198 DEVICE_LITTLE_ENDIAN);
2e29bd04
BS
199 sysbus_init_mmio(dev, 0x1000, pci_mem_config);
200 sysbus_init_mmio(dev, 0x1000, pci_mem_data);
81a322d4 201 return 0;
2e29bd04
BS
202}
203
204PCIBus *pci_pmac_init(qemu_irq *pic)
205{
206 DeviceState *dev;
207 SysBusDevice *s;
208 UNINState *d;
209
210 /* Use values found on a real PowerMac */
211 /* Uninorth main bus */
18dd19a7 212 dev = qdev_create(NULL, "uni-north");
e23a1b33 213 qdev_init_nofail(dev);
2e29bd04
BS
214 s = sysbus_from_qdev(dev);
215 d = FROM_SYSBUS(UNINState, s);
cdd0935c 216 d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
2e29bd04 217 pci_unin_set_irq, pci_unin_map_irq,
520128bd 218 pic, PCI_DEVFN(11, 0), 4);
2e29bd04 219
60398748 220#if 0
520128bd 221 pci_create_simple(d->host_state.bus, PCI_DEVFN(11, 0), "uni-north");
60398748 222#endif
2e29bd04
BS
223
224 sysbus_mmio_map(s, 0, 0xf2800000);
225 sysbus_mmio_map(s, 1, 0xf2c00000);
226
227 /* DEC 21154 bridge */
228#if 0
229 /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
520128bd 230 pci_create_simple(d->host_state.bus, PCI_DEVFN(12, 0), "dec-21154");
2e29bd04
BS
231#endif
232
233 /* Uninorth AGP bus */
520128bd 234 pci_create_simple(d->host_state.bus, PCI_DEVFN(11, 0), "uni-north-agp");
18dd19a7 235 dev = qdev_create(NULL, "uni-north-agp");
d27d06f2
BS
236 qdev_init_nofail(dev);
237 s = sysbus_from_qdev(dev);
238 sysbus_mmio_map(s, 0, 0xf0800000);
239 sysbus_mmio_map(s, 1, 0xf0c00000);
2e29bd04
BS
240
241 /* Uninorth internal bus */
242#if 0
243 /* XXX: not needed for now */
520128bd 244 pci_create_simple(d->host_state.bus, PCI_DEVFN(14, 0), "uni-north-pci");
18dd19a7 245 dev = qdev_create(NULL, "uni-north-pci");
d27d06f2
BS
246 qdev_init_nofail(dev);
247 s = sysbus_from_qdev(dev);
248 sysbus_mmio_map(s, 0, 0xf4800000);
249 sysbus_mmio_map(s, 1, 0xf4c00000);
2e29bd04
BS
250#endif
251
252 return d->host_state.bus;
253}
254
0f921197
AG
255PCIBus *pci_pmac_u3_init(qemu_irq *pic)
256{
257 DeviceState *dev;
258 SysBusDevice *s;
259 UNINState *d;
260
261 /* Uninorth AGP bus */
262
263 dev = qdev_create(NULL, "u3-agp");
264 qdev_init_nofail(dev);
265 s = sysbus_from_qdev(dev);
266 d = FROM_SYSBUS(UNINState, s);
267
268 d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
269 pci_unin_set_irq, pci_unin_map_irq,
520128bd 270 pic, PCI_DEVFN(11, 0), 4);
0f921197
AG
271
272 sysbus_mmio_map(s, 0, 0xf0800000);
273 sysbus_mmio_map(s, 1, 0xf0c00000);
274
275 pci_create_simple(d->host_state.bus, 11 << 3, "u3-agp");
276
277 return d->host_state.bus;
278}
279
81a322d4 280static int unin_main_pci_host_init(PCIDevice *d)
2e29bd04 281{
502a5395
PB
282 d->config[0x0C] = 0x08; // cache_line_size
283 d->config[0x0D] = 0x10; // latency_timer
502a5395 284 d->config[0x34] = 0x00; // capabilities_pointer
81a322d4 285 return 0;
2e29bd04 286}
502a5395 287
81a322d4 288static int unin_agp_pci_host_init(PCIDevice *d)
2e29bd04 289{
502a5395
PB
290 d->config[0x0C] = 0x08; // cache_line_size
291 d->config[0x0D] = 0x10; // latency_timer
502a5395 292 // d->config[0x34] = 0x80; // capabilities_pointer
81a322d4 293 return 0;
2e29bd04 294}
502a5395 295
0f921197
AG
296static int u3_agp_pci_host_init(PCIDevice *d)
297{
0f921197
AG
298 /* cache line size */
299 d->config[0x0C] = 0x08;
300 /* latency timer */
301 d->config[0x0D] = 0x10;
0f921197
AG
302 return 0;
303}
304
81a322d4 305static int unin_internal_pci_host_init(PCIDevice *d)
2e29bd04 306{
502a5395
PB
307 d->config[0x0C] = 0x08; // cache_line_size
308 d->config[0x0D] = 0x10; // latency_timer
502a5395 309 d->config[0x34] = 0x00; // capabilities_pointer
81a322d4 310 return 0;
2e29bd04
BS
311}
312
313static PCIDeviceInfo unin_main_pci_host_info = {
18dd19a7 314 .qdev.name = "uni-north",
2e29bd04
BS
315 .qdev.size = sizeof(PCIDevice),
316 .init = unin_main_pci_host_init,
d7b61ecc
IY
317 .vendor_id = PCI_VENDOR_ID_APPLE,
318 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_PCI,
319 .revision = 0x00,
320 .class_id = PCI_CLASS_BRIDGE_HOST,
2e29bd04
BS
321};
322
0f921197
AG
323static PCIDeviceInfo u3_agp_pci_host_info = {
324 .qdev.name = "u3-agp",
325 .qdev.size = sizeof(PCIDevice),
326 .init = u3_agp_pci_host_init,
d7b61ecc
IY
327 .vendor_id = PCI_VENDOR_ID_APPLE,
328 .device_id = PCI_DEVICE_ID_APPLE_U3_AGP,
329 .revision = 0x00,
330 .class_id = PCI_CLASS_BRIDGE_HOST,
0f921197
AG
331};
332
2e29bd04 333static PCIDeviceInfo unin_agp_pci_host_info = {
18dd19a7 334 .qdev.name = "uni-north-agp",
2e29bd04
BS
335 .qdev.size = sizeof(PCIDevice),
336 .init = unin_agp_pci_host_init,
d7b61ecc
IY
337 .vendor_id = PCI_VENDOR_ID_APPLE,
338 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP,
339 .revision = 0x00,
340 .class_id = PCI_CLASS_BRIDGE_HOST,
2e29bd04
BS
341};
342
343static PCIDeviceInfo unin_internal_pci_host_info = {
18dd19a7 344 .qdev.name = "uni-north-pci",
2e29bd04
BS
345 .qdev.size = sizeof(PCIDevice),
346 .init = unin_internal_pci_host_init,
d7b61ecc
IY
347 .vendor_id = PCI_VENDOR_ID_APPLE,
348 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_I_PCI,
349 .revision = 0x00,
350 .class_id = PCI_CLASS_BRIDGE_HOST,
2e29bd04
BS
351};
352
353static void unin_register_devices(void)
354{
18dd19a7 355 sysbus_register_dev("uni-north", sizeof(UNINState),
2e29bd04
BS
356 pci_unin_main_init_device);
357 pci_qdev_register(&unin_main_pci_host_info);
0f921197
AG
358 sysbus_register_dev("u3-agp", sizeof(UNINState),
359 pci_u3_agp_init_device);
360 pci_qdev_register(&u3_agp_pci_host_info);
18dd19a7 361 sysbus_register_dev("uni-north-agp", sizeof(UNINState),
2e29bd04
BS
362 pci_unin_agp_init_device);
363 pci_qdev_register(&unin_agp_pci_host_info);
18dd19a7 364 sysbus_register_dev("uni-north-pci", sizeof(UNINState),
2e29bd04
BS
365 pci_unin_internal_init_device);
366 pci_qdev_register(&unin_internal_pci_host_info);
502a5395 367}
2e29bd04
BS
368
369device_init(unin_register_devices)