xref: /openbmc/qemu/hw/misc/macio/cuda.c (revision 93dd625f)
1 /*
2  * QEMU PowerMac CUDA device support
3  *
4  * Copyright (c) 2004-2007 Fabrice Bellard
5  * Copyright (c) 2007 Jocelyn Mayer
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy
8  * of this software and associated documentation files (the "Software"), to deal
9  * in the Software without restriction, including without limitation the rights
10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the Software, and to permit persons to whom the Software is
12  * furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23  * THE SOFTWARE.
24  */
25 
26 #include "qemu/osdep.h"
27 #include "qemu-common.h"
28 #include "hw/ppc/mac.h"
29 #include "hw/qdev-properties.h"
30 #include "migration/vmstate.h"
31 #include "hw/input/adb.h"
32 #include "hw/misc/mos6522.h"
33 #include "hw/misc/macio/cuda.h"
34 #include "qapi/error.h"
35 #include "qemu/timer.h"
36 #include "sysemu/runstate.h"
37 #include "qapi/error.h"
38 #include "qemu/cutils.h"
39 #include "qemu/log.h"
40 #include "qemu/module.h"
41 #include "trace.h"
42 
43 /* Bits in B data register: all active low */
44 #define TREQ            0x08    /* Transfer request (input) */
45 #define TACK            0x10    /* Transfer acknowledge (output) */
46 #define TIP             0x20    /* Transfer in progress (output) */
47 
48 /* commands (1st byte) */
49 #define ADB_PACKET      0
50 #define CUDA_PACKET     1
51 #define ERROR_PACKET    2
52 #define TIMER_PACKET    3
53 #define POWER_PACKET    4
54 #define MACIIC_PACKET   5
55 #define PMU_PACKET      6
56 
57 #define CUDA_TIMER_FREQ (4700000 / 6)
58 
59 /* CUDA returns time_t's offset from Jan 1, 1904, not 1970 */
60 #define RTC_OFFSET                      2082844800
61 
62 static void cuda_receive_packet_from_host(CUDAState *s,
63                                           const uint8_t *data, int len);
64 
65 /* MacOS uses timer 1 for calibration on startup, so we use
66  * the timebase frequency and cuda_get_counter_value() with
67  * cuda_get_load_time() to steer MacOS to calculate calibrate its timers
68  * correctly for both TCG and KVM (see commit b981289c49 "PPC: Cuda: Use cuda
69  * timer to expose tbfreq to guest" for more information) */
70 
71 static uint64_t cuda_get_counter_value(MOS6522State *s, MOS6522Timer *ti)
72 {
73     MOS6522CUDAState *mcs = container_of(s, MOS6522CUDAState, parent_obj);
74     CUDAState *cs = container_of(mcs, CUDAState, mos6522_cuda);
75 
76     /* Reverse of the tb calculation algorithm that Mac OS X uses on bootup */
77     uint64_t tb_diff = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
78                                 cs->tb_frequency, NANOSECONDS_PER_SECOND) -
79                            ti->load_time;
80 
81     return (tb_diff * 0xBF401675E5DULL) / (cs->tb_frequency << 24);
82 }
83 
84 static uint64_t cuda_get_load_time(MOS6522State *s, MOS6522Timer *ti)
85 {
86     MOS6522CUDAState *mcs = container_of(s, MOS6522CUDAState, parent_obj);
87     CUDAState *cs = container_of(mcs, CUDAState, mos6522_cuda);
88 
89     uint64_t load_time = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
90                                   cs->tb_frequency, NANOSECONDS_PER_SECOND);
91     return load_time;
92 }
93 
94 static void cuda_set_sr_int(void *opaque)
95 {
96     CUDAState *s = opaque;
97     MOS6522CUDAState *mcs = &s->mos6522_cuda;
98     MOS6522State *ms = MOS6522(mcs);
99     MOS6522DeviceClass *mdc = MOS6522_DEVICE_GET_CLASS(ms);
100 
101     mdc->set_sr_int(ms);
102 }
103 
104 static void cuda_delay_set_sr_int(CUDAState *s)
105 {
106     int64_t expire;
107 
108     trace_cuda_delay_set_sr_int();
109 
110     expire = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + s->sr_delay_ns;
111     timer_mod(s->sr_delay_timer, expire);
112 }
113 
114 /* NOTE: TIP and TREQ are negated */
115 static void cuda_update(CUDAState *s)
116 {
117     MOS6522CUDAState *mcs = &s->mos6522_cuda;
118     MOS6522State *ms = MOS6522(mcs);
119     int packet_received, len;
120 
121     packet_received = 0;
122     if (!(ms->b & TIP)) {
123         /* transfer requested from host */
124 
125         if (ms->acr & SR_OUT) {
126             /* data output */
127             if ((ms->b & (TACK | TIP)) != (s->last_b & (TACK | TIP))) {
128                 if (s->data_out_index < sizeof(s->data_out)) {
129                     trace_cuda_data_send(ms->sr);
130                     s->data_out[s->data_out_index++] = ms->sr;
131                     cuda_delay_set_sr_int(s);
132                 }
133             }
134         } else {
135             if (s->data_in_index < s->data_in_size) {
136                 /* data input */
137                 if ((ms->b & (TACK | TIP)) != (s->last_b & (TACK | TIP))) {
138                     ms->sr = s->data_in[s->data_in_index++];
139                     trace_cuda_data_recv(ms->sr);
140                     /* indicate end of transfer */
141                     if (s->data_in_index >= s->data_in_size) {
142                         ms->b = (ms->b | TREQ);
143                     }
144                     cuda_delay_set_sr_int(s);
145                 }
146             }
147         }
148     } else {
149         /* no transfer requested: handle sync case */
150         if ((s->last_b & TIP) && (ms->b & TACK) != (s->last_b & TACK)) {
151             /* update TREQ state each time TACK change state */
152             if (ms->b & TACK) {
153                 ms->b = (ms->b | TREQ);
154             } else {
155                 ms->b = (ms->b & ~TREQ);
156             }
157             cuda_delay_set_sr_int(s);
158         } else {
159             if (!(s->last_b & TIP)) {
160                 /* handle end of host to cuda transfer */
161                 packet_received = (s->data_out_index > 0);
162                 /* always an IRQ at the end of transfer */
163                 cuda_delay_set_sr_int(s);
164             }
165             /* signal if there is data to read */
166             if (s->data_in_index < s->data_in_size) {
167                 ms->b = (ms->b & ~TREQ);
168             }
169         }
170     }
171 
172     s->last_acr = ms->acr;
173     s->last_b = ms->b;
174 
175     /* NOTE: cuda_receive_packet_from_host() can call cuda_update()
176        recursively */
177     if (packet_received) {
178         len = s->data_out_index;
179         s->data_out_index = 0;
180         cuda_receive_packet_from_host(s, s->data_out, len);
181     }
182 }
183 
184 static void cuda_send_packet_to_host(CUDAState *s,
185                                      const uint8_t *data, int len)
186 {
187     int i;
188 
189     trace_cuda_packet_send(len);
190     for (i = 0; i < len; i++) {
191         trace_cuda_packet_send_data(i, data[i]);
192     }
193 
194     memcpy(s->data_in, data, len);
195     s->data_in_size = len;
196     s->data_in_index = 0;
197     cuda_update(s);
198     cuda_delay_set_sr_int(s);
199 }
200 
201 static void cuda_adb_poll(void *opaque)
202 {
203     CUDAState *s = opaque;
204     uint8_t obuf[ADB_MAX_OUT_LEN + 2];
205     int olen;
206 
207     olen = adb_poll(&s->adb_bus, obuf + 2, s->adb_poll_mask);
208     if (olen > 0) {
209         obuf[0] = ADB_PACKET;
210         obuf[1] = 0x40; /* polled data */
211         cuda_send_packet_to_host(s, obuf, olen + 2);
212     }
213     timer_mod(s->adb_poll_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
214               (NANOSECONDS_PER_SECOND / (1000 / s->autopoll_rate_ms)));
215 }
216 
217 /* description of commands */
218 typedef struct CudaCommand {
219     uint8_t command;
220     const char *name;
221     bool (*handler)(CUDAState *s,
222                     const uint8_t *in_args, int in_len,
223                     uint8_t *out_args, int *out_len);
224 } CudaCommand;
225 
226 static bool cuda_cmd_autopoll(CUDAState *s,
227                               const uint8_t *in_data, int in_len,
228                               uint8_t *out_data, int *out_len)
229 {
230     int autopoll;
231 
232     if (in_len != 1) {
233         return false;
234     }
235 
236     autopoll = (in_data[0] != 0);
237     if (autopoll != s->autopoll) {
238         s->autopoll = autopoll;
239         if (autopoll) {
240             timer_mod(s->adb_poll_timer,
241                       qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
242                       (NANOSECONDS_PER_SECOND / (1000 / s->autopoll_rate_ms)));
243         } else {
244             timer_del(s->adb_poll_timer);
245         }
246     }
247     return true;
248 }
249 
250 static bool cuda_cmd_set_autorate(CUDAState *s,
251                                   const uint8_t *in_data, int in_len,
252                                   uint8_t *out_data, int *out_len)
253 {
254     if (in_len != 1) {
255         return false;
256     }
257 
258     /* we don't want a period of 0 ms */
259     /* FIXME: check what real hardware does */
260     if (in_data[0] == 0) {
261         return false;
262     }
263 
264     s->autopoll_rate_ms = in_data[0];
265     if (s->autopoll) {
266         timer_mod(s->adb_poll_timer,
267                   qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
268                   (NANOSECONDS_PER_SECOND / (1000 / s->autopoll_rate_ms)));
269     }
270     return true;
271 }
272 
273 static bool cuda_cmd_set_device_list(CUDAState *s,
274                                      const uint8_t *in_data, int in_len,
275                                      uint8_t *out_data, int *out_len)
276 {
277     if (in_len != 2) {
278         return false;
279     }
280 
281     s->adb_poll_mask = (((uint16_t)in_data[0]) << 8) | in_data[1];
282     return true;
283 }
284 
285 static bool cuda_cmd_powerdown(CUDAState *s,
286                                const uint8_t *in_data, int in_len,
287                                uint8_t *out_data, int *out_len)
288 {
289     if (in_len != 0) {
290         return false;
291     }
292 
293     qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
294     return true;
295 }
296 
297 static bool cuda_cmd_reset_system(CUDAState *s,
298                                   const uint8_t *in_data, int in_len,
299                                   uint8_t *out_data, int *out_len)
300 {
301     if (in_len != 0) {
302         return false;
303     }
304 
305     qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
306     return true;
307 }
308 
309 static bool cuda_cmd_set_file_server_flag(CUDAState *s,
310                                           const uint8_t *in_data, int in_len,
311                                           uint8_t *out_data, int *out_len)
312 {
313     if (in_len != 1) {
314         return false;
315     }
316 
317     qemu_log_mask(LOG_UNIMP,
318                   "CUDA: unimplemented command FILE_SERVER_FLAG %d\n",
319                   in_data[0]);
320     return true;
321 }
322 
323 static bool cuda_cmd_set_power_message(CUDAState *s,
324                                        const uint8_t *in_data, int in_len,
325                                        uint8_t *out_data, int *out_len)
326 {
327     if (in_len != 1) {
328         return false;
329     }
330 
331     qemu_log_mask(LOG_UNIMP,
332                   "CUDA: unimplemented command SET_POWER_MESSAGE %d\n",
333                   in_data[0]);
334     return true;
335 }
336 
337 static bool cuda_cmd_get_time(CUDAState *s,
338                               const uint8_t *in_data, int in_len,
339                               uint8_t *out_data, int *out_len)
340 {
341     uint32_t ti;
342 
343     if (in_len != 0) {
344         return false;
345     }
346 
347     ti = s->tick_offset + (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)
348                            / NANOSECONDS_PER_SECOND);
349     out_data[0] = ti >> 24;
350     out_data[1] = ti >> 16;
351     out_data[2] = ti >> 8;
352     out_data[3] = ti;
353     *out_len = 4;
354     return true;
355 }
356 
357 static bool cuda_cmd_set_time(CUDAState *s,
358                               const uint8_t *in_data, int in_len,
359                               uint8_t *out_data, int *out_len)
360 {
361     uint32_t ti;
362 
363     if (in_len != 4) {
364         return false;
365     }
366 
367     ti = (((uint32_t)in_data[0]) << 24) + (((uint32_t)in_data[1]) << 16)
368          + (((uint32_t)in_data[2]) << 8) + in_data[3];
369     s->tick_offset = ti - (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)
370                            / NANOSECONDS_PER_SECOND);
371     return true;
372 }
373 
374 static const CudaCommand handlers[] = {
375     { CUDA_AUTOPOLL, "AUTOPOLL", cuda_cmd_autopoll },
376     { CUDA_SET_AUTO_RATE, "SET_AUTO_RATE",  cuda_cmd_set_autorate },
377     { CUDA_SET_DEVICE_LIST, "SET_DEVICE_LIST", cuda_cmd_set_device_list },
378     { CUDA_POWERDOWN, "POWERDOWN", cuda_cmd_powerdown },
379     { CUDA_RESET_SYSTEM, "RESET_SYSTEM", cuda_cmd_reset_system },
380     { CUDA_FILE_SERVER_FLAG, "FILE_SERVER_FLAG",
381       cuda_cmd_set_file_server_flag },
382     { CUDA_SET_POWER_MESSAGES, "SET_POWER_MESSAGES",
383       cuda_cmd_set_power_message },
384     { CUDA_GET_TIME, "GET_TIME", cuda_cmd_get_time },
385     { CUDA_SET_TIME, "SET_TIME", cuda_cmd_set_time },
386 };
387 
388 static void cuda_receive_packet(CUDAState *s,
389                                 const uint8_t *data, int len)
390 {
391     uint8_t obuf[16] = { CUDA_PACKET, 0, data[0] };
392     int i, out_len = 0;
393 
394     for (i = 0; i < ARRAY_SIZE(handlers); i++) {
395         const CudaCommand *desc = &handlers[i];
396         if (desc->command == data[0]) {
397             trace_cuda_receive_packet_cmd(desc->name);
398             out_len = 0;
399             if (desc->handler(s, data + 1, len - 1, obuf + 3, &out_len)) {
400                 cuda_send_packet_to_host(s, obuf, 3 + out_len);
401             } else {
402                 qemu_log_mask(LOG_GUEST_ERROR,
403                               "CUDA: %s: wrong parameters %d\n",
404                               desc->name, len);
405                 obuf[0] = ERROR_PACKET;
406                 obuf[1] = 0x5; /* bad parameters */
407                 obuf[2] = CUDA_PACKET;
408                 obuf[3] = data[0];
409                 cuda_send_packet_to_host(s, obuf, 4);
410             }
411             return;
412         }
413     }
414 
415     qemu_log_mask(LOG_GUEST_ERROR, "CUDA: unknown command 0x%02x\n", data[0]);
416     obuf[0] = ERROR_PACKET;
417     obuf[1] = 0x2; /* unknown command */
418     obuf[2] = CUDA_PACKET;
419     obuf[3] = data[0];
420     cuda_send_packet_to_host(s, obuf, 4);
421 }
422 
423 static void cuda_receive_packet_from_host(CUDAState *s,
424                                           const uint8_t *data, int len)
425 {
426     int i;
427 
428     trace_cuda_packet_receive(len);
429     for (i = 0; i < len; i++) {
430         trace_cuda_packet_receive_data(i, data[i]);
431     }
432 
433     switch(data[0]) {
434     case ADB_PACKET:
435         {
436             uint8_t obuf[ADB_MAX_OUT_LEN + 3];
437             int olen;
438             olen = adb_request(&s->adb_bus, obuf + 2, data + 1, len - 1);
439             if (olen > 0) {
440                 obuf[0] = ADB_PACKET;
441                 obuf[1] = 0x00;
442                 cuda_send_packet_to_host(s, obuf, olen + 2);
443             } else {
444                 /* error */
445                 obuf[0] = ADB_PACKET;
446                 obuf[1] = -olen;
447                 obuf[2] = data[1];
448                 olen = 0;
449                 cuda_send_packet_to_host(s, obuf, olen + 3);
450             }
451         }
452         break;
453     case CUDA_PACKET:
454         cuda_receive_packet(s, data + 1, len - 1);
455         break;
456     }
457 }
458 
459 static uint64_t mos6522_cuda_read(void *opaque, hwaddr addr, unsigned size)
460 {
461     CUDAState *s = opaque;
462     MOS6522CUDAState *mcs = &s->mos6522_cuda;
463     MOS6522State *ms = MOS6522(mcs);
464 
465     addr = (addr >> 9) & 0xf;
466     return mos6522_read(ms, addr, size);
467 }
468 
469 static void mos6522_cuda_write(void *opaque, hwaddr addr, uint64_t val,
470                                unsigned size)
471 {
472     CUDAState *s = opaque;
473     MOS6522CUDAState *mcs = &s->mos6522_cuda;
474     MOS6522State *ms = MOS6522(mcs);
475 
476     addr = (addr >> 9) & 0xf;
477     mos6522_write(ms, addr, val, size);
478 }
479 
480 static const MemoryRegionOps mos6522_cuda_ops = {
481     .read = mos6522_cuda_read,
482     .write = mos6522_cuda_write,
483     .endianness = DEVICE_BIG_ENDIAN,
484     .valid = {
485         .min_access_size = 1,
486         .max_access_size = 1,
487     },
488 };
489 
490 static const VMStateDescription vmstate_cuda = {
491     .name = "cuda",
492     .version_id = 5,
493     .minimum_version_id = 5,
494     .fields = (VMStateField[]) {
495         VMSTATE_STRUCT(mos6522_cuda.parent_obj, CUDAState, 0, vmstate_mos6522,
496                        MOS6522State),
497         VMSTATE_UINT8(last_b, CUDAState),
498         VMSTATE_UINT8(last_acr, CUDAState),
499         VMSTATE_INT32(data_in_size, CUDAState),
500         VMSTATE_INT32(data_in_index, CUDAState),
501         VMSTATE_INT32(data_out_index, CUDAState),
502         VMSTATE_UINT8(autopoll, CUDAState),
503         VMSTATE_UINT8(autopoll_rate_ms, CUDAState),
504         VMSTATE_UINT16(adb_poll_mask, CUDAState),
505         VMSTATE_BUFFER(data_in, CUDAState),
506         VMSTATE_BUFFER(data_out, CUDAState),
507         VMSTATE_UINT32(tick_offset, CUDAState),
508         VMSTATE_TIMER_PTR(adb_poll_timer, CUDAState),
509         VMSTATE_TIMER_PTR(sr_delay_timer, CUDAState),
510         VMSTATE_END_OF_LIST()
511     }
512 };
513 
514 static void cuda_reset(DeviceState *dev)
515 {
516     CUDAState *s = CUDA(dev);
517 
518     s->data_in_size = 0;
519     s->data_in_index = 0;
520     s->data_out_index = 0;
521     s->autopoll = 0;
522 }
523 
524 static void cuda_realize(DeviceState *dev, Error **errp)
525 {
526     CUDAState *s = CUDA(dev);
527     Error *err = NULL;
528     SysBusDevice *sbd;
529     struct tm tm;
530 
531     sysbus_realize(SYS_BUS_DEVICE(&s->mos6522_cuda), &err);
532     if (err) {
533         error_propagate(errp, err);
534         return;
535     }
536 
537     /* Pass IRQ from 6522 */
538     sbd = SYS_BUS_DEVICE(s);
539     sysbus_pass_irq(sbd, SYS_BUS_DEVICE(&s->mos6522_cuda));
540 
541     qemu_get_timedate(&tm, 0);
542     s->tick_offset = (uint32_t)mktimegm(&tm) + RTC_OFFSET;
543 
544     s->sr_delay_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_set_sr_int, s);
545     s->sr_delay_ns = 20 * SCALE_US;
546 
547     s->adb_poll_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_adb_poll, s);
548     s->adb_poll_mask = 0xffff;
549     s->autopoll_rate_ms = 20;
550 }
551 
552 static void cuda_init(Object *obj)
553 {
554     CUDAState *s = CUDA(obj);
555     SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
556 
557     object_initialize_child(obj, "mos6522-cuda", &s->mos6522_cuda,
558                             TYPE_MOS6522_CUDA);
559 
560     memory_region_init_io(&s->mem, obj, &mos6522_cuda_ops, s, "cuda", 0x2000);
561     sysbus_init_mmio(sbd, &s->mem);
562 
563     qbus_create_inplace(&s->adb_bus, sizeof(s->adb_bus), TYPE_ADB_BUS,
564                         DEVICE(obj), "adb.0");
565 }
566 
567 static Property cuda_properties[] = {
568     DEFINE_PROP_UINT64("timebase-frequency", CUDAState, tb_frequency, 0),
569     DEFINE_PROP_END_OF_LIST()
570 };
571 
572 static void cuda_class_init(ObjectClass *oc, void *data)
573 {
574     DeviceClass *dc = DEVICE_CLASS(oc);
575 
576     dc->realize = cuda_realize;
577     dc->reset = cuda_reset;
578     dc->vmsd = &vmstate_cuda;
579     device_class_set_props(dc, cuda_properties);
580     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
581 }
582 
583 static const TypeInfo cuda_type_info = {
584     .name = TYPE_CUDA,
585     .parent = TYPE_SYS_BUS_DEVICE,
586     .instance_size = sizeof(CUDAState),
587     .instance_init = cuda_init,
588     .class_init = cuda_class_init,
589 };
590 
591 static void mos6522_cuda_portB_write(MOS6522State *s)
592 {
593     MOS6522CUDAState *mcs = container_of(s, MOS6522CUDAState, parent_obj);
594     CUDAState *cs = container_of(mcs, CUDAState, mos6522_cuda);
595 
596     cuda_update(cs);
597 }
598 
599 static void mos6522_cuda_reset(DeviceState *dev)
600 {
601     MOS6522State *ms = MOS6522(dev);
602     MOS6522DeviceClass *mdc = MOS6522_DEVICE_GET_CLASS(ms);
603 
604     mdc->parent_reset(dev);
605 
606     ms->timers[0].frequency = CUDA_TIMER_FREQ;
607     ms->timers[1].frequency = (SCALE_US * 6000) / 4700;
608 }
609 
610 static void mos6522_cuda_class_init(ObjectClass *oc, void *data)
611 {
612     DeviceClass *dc = DEVICE_CLASS(oc);
613     MOS6522DeviceClass *mdc = MOS6522_DEVICE_CLASS(oc);
614 
615     dc->reset = mos6522_cuda_reset;
616     mdc->portB_write = mos6522_cuda_portB_write;
617     mdc->get_timer1_counter_value = cuda_get_counter_value;
618     mdc->get_timer2_counter_value = cuda_get_counter_value;
619     mdc->get_timer1_load_time = cuda_get_load_time;
620     mdc->get_timer2_load_time = cuda_get_load_time;
621 }
622 
623 static const TypeInfo mos6522_cuda_type_info = {
624     .name = TYPE_MOS6522_CUDA,
625     .parent = TYPE_MOS6522,
626     .instance_size = sizeof(MOS6522CUDAState),
627     .class_init = mos6522_cuda_class_init,
628 };
629 
630 static void cuda_register_types(void)
631 {
632     type_register_static(&mos6522_cuda_type_info);
633     type_register_static(&cuda_type_info);
634 }
635 
636 type_init(cuda_register_types)
637