aboutsummaryrefslogtreecommitdiff
path: root/hw/unin_pci.c
blob: 1310211aec4a3e01b1facb3babeede04172331cd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
/*
 * QEMU Uninorth PCI host (for all Mac99 and newer machines)
 *
 * Copyright (c) 2006 Fabrice Bellard
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include "hw.h"
#include "ppc_mac.h"
#include "pci.h"
#include "pci_host.h"

/* debug UniNorth */
//#define DEBUG_UNIN

#ifdef DEBUG_UNIN
#define UNIN_DPRINTF(fmt, ...)                                  \
    do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
#else
#define UNIN_DPRINTF(fmt, ...)
#endif

static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e };

typedef struct UNINState {
    SysBusDevice busdev;
    PCIHostState host_state;
    ReadWriteHandler data_handler;
} UNINState;

static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
{
    int retval;
    int devfn = pci_dev->devfn & 0x00FFFFFF;

    retval = (((devfn >> 11) & 0x1F) + irq_num) & 3;

    return retval;
}

static void pci_unin_set_irq(void *opaque, int irq_num, int level)
{
    qemu_irq *pic = opaque;

    UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
                 unin_irq_line[irq_num], level);
    qemu_set_irq(pic[unin_irq_line[irq_num]], level);
}

static void pci_unin_save(QEMUFile* f, void *opaque)
{
    PCIDevice *d = opaque;

    pci_device_save(d, f);
}

static int pci_unin_load(QEMUFile* f, void *opaque, int version_id)
{
    PCIDevice *d = opaque;

    if (version_id != 1)
        return -EINVAL;

    return pci_device_load(d, f);
}

static void pci_unin_reset(void *opaque)
{
}

static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
{
    uint32_t retval;

    if (reg & (1u << 31)) {
        /* XXX OpenBIOS compatibility hack */
        retval = reg | (addr & 3);
    } else if (reg & 1) {
        /* CFA1 style */
        retval = (reg & ~7u) | (addr & 7);
    } else {
        uint32_t slot, func;

        /* Grab CFA0 style values */
        slot = ffs(reg & 0xfffff800) - 1;
        func = (reg >> 8) & 7;

        /* ... and then convert them to x86 format */
        /* config pointer */
        retval = (reg & (0xff - 7)) | (addr & 7);
        /* slot */
        retval |= slot << 11;
        /* fn */
        retval |= func << 8;
    }


    UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
                 reg, addr, retval);

    return retval;
}

static void unin_data_write(ReadWriteHandler *handler,
                            pcibus_t addr, uint32_t val, int len)
{
    UNINState *s = container_of(handler, UNINState, data_handler);
    val = qemu_bswap_len(val, len);
    UNIN_DPRINTF("write addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val);
    pci_data_write(s->host_state.bus,
                   unin_get_config_reg(s->host_state.config_reg, addr),
                   val, len);
}

static uint32_t unin_data_read(ReadWriteHandler *handler,
                               pcibus_t addr, int len)
{
    UNINState *s = container_of(handler, UNINState, data_handler);
    uint32_t val;

    val = pci_data_read(s->host_state.bus,
                        unin_get_config_reg(s->host_state.config_reg, addr),
                        len);
    UNIN_DPRINTF("read addr %" FMT_PCIBUS " len %d val %x\n", addr, len, val);
    val = qemu_bswap_len(val, len);
    return val;
}

static int pci_unin_main_init_device(SysBusDevice *dev)
{
    UNINState *s;
    int pci_mem_config, pci_mem_data;

    /* Use values found on a real PowerMac */
    /* Uninorth main bus */
    s = FROM_SYSBUS(UNINState, dev);

    pci_mem_config = pci_host_conf_register_mmio(&s->host_state, 1);
    s->data_handler.read = unin_data_read;
    s->data_handler.write = unin_data_write;
    pci_mem_data = cpu_register_io_memory_simple(&s->data_handler);
    sysbus_init_mmio(dev, 0x1000, pci_mem_config);
    sysbus_init_mmio(dev, 0x1000, pci_mem_data);

    register_savevm(&dev->qdev, "uninorth", 0, 1,
                    pci_unin_save, pci_unin_load, &s->host_state);
    qemu_register_reset(pci_unin_reset, &s->host_state);
    return 0;
}

static int pci_u3_agp_init_device(SysBusDevice *dev)
{
    UNINState *s;
    int pci_mem_config, pci_mem_data;

    /* Uninorth U3 AGP bus */
    s = FROM_SYSBUS(UNINState, dev);

    pci_mem_config = pci_host_conf_register_mmio(&s->host_state, 1);
    s->data_handler.read = unin_data_read;
    s->data_handler.write = unin_data_write;
    pci_mem_data = cpu_register_io_memory_simple(&s->data_handler);
    sysbus_init_mmio(dev, 0x1000, pci_mem_config);
    sysbus_init_mmio(dev, 0x1000, pci_mem_data);

    register_savevm(&dev->qdev, "uninorth", 0, 1,
                    pci_unin_save, pci_unin_load, &s->host_state);
    qemu_register_reset(pci_unin_reset, &s->host_state);

    return 0;
}

static int pci_unin_agp_init_device(SysBusDevice *dev)
{
    UNINState *s;
    int pci_mem_config, pci_mem_data;

    /* Uninorth AGP bus */
    s = FROM_SYSBUS(UNINState, dev);

    pci_mem_config = pci_host_conf_register_mmio(&s->host_state, 0);
    pci_mem_data = pci_host_data_register_mmio(&s->host_state, 1);
    sysbus_init_mmio(dev, 0x1000, pci_mem_config);
    sysbus_init_mmio(dev, 0x1000, pci_mem_data);
    return 0;
}

static int pci_unin_internal_init_device(SysBusDevice *dev)
{
    UNINState *s;
    int pci_mem_config, pci_mem_data;

    /* Uninorth internal bus */
    s = FROM_SYSBUS(UNINState, dev);

    pci_mem_config = pci_host_conf_register_mmio(&s->host_state, 0);
    pci_mem_data = pci_host_data_register_mmio(&s->host_state, 1);
    sysbus_init_mmio(dev, 0x1000, pci_mem_config);
    sysbus_init_mmio(dev, 0x1000, pci_mem_data);
    return 0;
}

PCIBus *pci_pmac_init(qemu_irq *pic)
{
    DeviceState *dev;
    SysBusDevice *s;
    UNINState *d;

    /* Use values found on a real PowerMac */
    /* Uninorth main bus */
    dev = qdev_create(NULL, "uni-north");
    qdev_init_nofail(dev);
    s = sysbus_from_qdev(dev);
    d = FROM_SYSBUS(UNINState, s);
    d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
                                         pci_unin_set_irq, pci_unin_map_irq,
                                         pic, PCI_DEVFN(11, 0), 4);

#if 0
    pci_create_simple(d->host_state.bus, PCI_DEVFN(11, 0), "uni-north");
#endif

    sysbus_mmio_map(s, 0, 0xf2800000);
    sysbus_mmio_map(s, 1, 0xf2c00000);

    /* DEC 21154 bridge */
#if 0
    /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
    pci_create_simple(d->host_state.bus, PCI_DEVFN(12, 0), "dec-21154");
#endif

    /* Uninorth AGP bus */
    pci_create_simple(d->host_state.bus, PCI_DEVFN(11, 0), "uni-north-agp");
    dev = qdev_create(NULL, "uni-north-agp");
    qdev_init_nofail(dev);
    s = sysbus_from_qdev(dev);
    sysbus_mmio_map(s, 0, 0xf0800000);
    sysbus_mmio_map(s, 1, 0xf0c00000);

    /* Uninorth internal bus */
#if 0
    /* XXX: not needed for now */
    pci_create_simple(d->host_state.bus, PCI_DEVFN(14, 0), "uni-north-pci");
    dev = qdev_create(NULL, "uni-north-pci");
    qdev_init_nofail(dev);
    s = sysbus_from_qdev(dev);
    sysbus_mmio_map(s, 0, 0xf4800000);
    sysbus_mmio_map(s, 1, 0xf4c00000);
#endif

    return d->host_state.bus;
}

PCIBus *pci_pmac_u3_init(qemu_irq *pic)
{
    DeviceState *dev;
    SysBusDevice *s;
    UNINState *d;

    /* Uninorth AGP bus */

    dev = qdev_create(NULL, "u3-agp");
    qdev_init_nofail(dev);
    s = sysbus_from_qdev(dev);
    d = FROM_SYSBUS(UNINState, s);

    d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
                                         pci_unin_set_irq, pci_unin_map_irq,
                                         pic, PCI_DEVFN(11, 0), 4);

    sysbus_mmio_map(s, 0, 0xf0800000);
    sysbus_mmio_map(s, 1, 0xf0c00000);

    pci_create_simple(d->host_state.bus, 11 << 3, "u3-agp");

    return d->host_state.bus;
}

static int unin_main_pci_host_init(PCIDevice *d)
{
    pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
    pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
    d->config[0x08] = 0x00; // revision
    pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
    d->config[0x0C] = 0x08; // cache_line_size
    d->config[0x0D] = 0x10; // latency_timer
    d->config[0x34] = 0x00; // capabilities_pointer
    return 0;
}

static int unin_agp_pci_host_init(PCIDevice *d)
{
    pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
    pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
    d->config[0x08] = 0x00; // revision
    pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
    d->config[0x0C] = 0x08; // cache_line_size
    d->config[0x0D] = 0x10; // latency_timer
    //    d->config[0x34] = 0x80; // capabilities_pointer
    return 0;
}

static int u3_agp_pci_host_init(PCIDevice *d)
{
    pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
    pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_U3_AGP);
    /* revision */
    d->config[0x08] = 0x00;
    pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
    /* cache line size */
    d->config[0x0C] = 0x08;
    /* latency timer */
    d->config[0x0D] = 0x10;
    return 0;
}

static int unin_internal_pci_host_init(PCIDevice *d)
{
    pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
    pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
    d->config[0x08] = 0x00; // revision
    pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
    d->config[0x0C] = 0x08; // cache_line_size
    d->config[0x0D] = 0x10; // latency_timer
    d->config[0x34] = 0x00; // capabilities_pointer
    return 0;
}

static PCIDeviceInfo unin_main_pci_host_info = {
    .qdev.name = "uni-north",
    .qdev.size = sizeof(PCIDevice),
    .init      = unin_main_pci_host_init,
};

static PCIDeviceInfo u3_agp_pci_host_info = {
    .qdev.name = "u3-agp",
    .qdev.size = sizeof(PCIDevice),
    .init      = u3_agp_pci_host_init,
};

static PCIDeviceInfo unin_agp_pci_host_info = {
    .qdev.name = "uni-north-agp",
    .qdev.size = sizeof(PCIDevice),
    .init      = unin_agp_pci_host_init,
};

static PCIDeviceInfo unin_internal_pci_host_info = {
    .qdev.name = "uni-north-pci",
    .qdev.size = sizeof(PCIDevice),
    .init      = unin_internal_pci_host_init,
};

static void unin_register_devices(void)
{
    sysbus_register_dev("uni-north", sizeof(UNINState),
                        pci_unin_main_init_device);
    pci_qdev_register(&unin_main_pci_host_info);
    sysbus_register_dev("u3-agp", sizeof(UNINState),
                        pci_u3_agp_init_device);
    pci_qdev_register(&u3_agp_pci_host_info);
    sysbus_register_dev("uni-north-agp", sizeof(UNINState),
                        pci_unin_agp_init_device);
    pci_qdev_register(&unin_agp_pci_host_info);
    sysbus_register_dev("uni-north-pci", sizeof(UNINState),
                        pci_unin_internal_init_device);
    pci_qdev_register(&unin_internal_pci_host_info);
}

device_init(unin_register_devices)