1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
4 * Copyright (C) 2017 Linaro Ltd.
5 */
6 #include <linux/slab.h>
7 #include <linux/mutex.h>
8 #include <linux/list.h>
9 #include <linux/completion.h>
10 #include <linux/platform_device.h>
11 #include <linux/videodev2.h>
12
13 #include "core.h"
14 #include "hfi.h"
15 #include "hfi_cmds.h"
16 #include "hfi_venus.h"
17
18 #define TIMEOUT msecs_to_jiffies(1000)
19
to_codec_type(u32 pixfmt)20 static u32 to_codec_type(u32 pixfmt)
21 {
22 switch (pixfmt) {
23 case V4L2_PIX_FMT_H264:
24 case V4L2_PIX_FMT_H264_NO_SC:
25 return HFI_VIDEO_CODEC_H264;
26 case V4L2_PIX_FMT_H263:
27 return HFI_VIDEO_CODEC_H263;
28 case V4L2_PIX_FMT_MPEG1:
29 return HFI_VIDEO_CODEC_MPEG1;
30 case V4L2_PIX_FMT_MPEG2:
31 return HFI_VIDEO_CODEC_MPEG2;
32 case V4L2_PIX_FMT_MPEG4:
33 return HFI_VIDEO_CODEC_MPEG4;
34 case V4L2_PIX_FMT_VC1_ANNEX_G:
35 case V4L2_PIX_FMT_VC1_ANNEX_L:
36 return HFI_VIDEO_CODEC_VC1;
37 case V4L2_PIX_FMT_VP8:
38 return HFI_VIDEO_CODEC_VP8;
39 case V4L2_PIX_FMT_VP9:
40 return HFI_VIDEO_CODEC_VP9;
41 case V4L2_PIX_FMT_XVID:
42 return HFI_VIDEO_CODEC_DIVX;
43 case V4L2_PIX_FMT_HEVC:
44 return HFI_VIDEO_CODEC_HEVC;
45 default:
46 return 0;
47 }
48 }
49
hfi_core_init(struct venus_core * core)50 int hfi_core_init(struct venus_core *core)
51 {
52 int ret = 0;
53
54 mutex_lock(&core->lock);
55
56 if (core->state >= CORE_INIT)
57 goto unlock;
58
59 reinit_completion(&core->done);
60
61 ret = core->ops->core_init(core);
62 if (ret)
63 goto unlock;
64
65 ret = wait_for_completion_timeout(&core->done, TIMEOUT);
66 if (!ret) {
67 ret = -ETIMEDOUT;
68 goto unlock;
69 }
70
71 ret = 0;
72
73 if (core->error != HFI_ERR_NONE) {
74 ret = -EIO;
75 goto unlock;
76 }
77
78 core->state = CORE_INIT;
79 unlock:
80 mutex_unlock(&core->lock);
81 return ret;
82 }
83
hfi_core_deinit(struct venus_core * core,bool blocking)84 int hfi_core_deinit(struct venus_core *core, bool blocking)
85 {
86 int ret = 0, empty;
87
88 mutex_lock(&core->lock);
89
90 if (core->state == CORE_UNINIT)
91 goto unlock;
92
93 empty = list_empty(&core->instances);
94
95 if (!empty && !blocking) {
96 ret = -EBUSY;
97 goto unlock;
98 }
99
100 if (!empty) {
101 mutex_unlock(&core->lock);
102 wait_var_event(&core->insts_count,
103 !atomic_read(&core->insts_count));
104 mutex_lock(&core->lock);
105 }
106
107 ret = core->ops->core_deinit(core);
108
109 if (!ret)
110 core->state = CORE_UNINIT;
111
112 unlock:
113 mutex_unlock(&core->lock);
114 return ret;
115 }
116
hfi_core_suspend(struct venus_core * core)117 int hfi_core_suspend(struct venus_core *core)
118 {
119 if (core->state != CORE_INIT)
120 return 0;
121
122 return core->ops->suspend(core);
123 }
124
hfi_core_resume(struct venus_core * core,bool force)125 int hfi_core_resume(struct venus_core *core, bool force)
126 {
127 if (!force && core->state != CORE_INIT)
128 return 0;
129
130 return core->ops->resume(core);
131 }
132
hfi_core_trigger_ssr(struct venus_core * core,u32 type)133 int hfi_core_trigger_ssr(struct venus_core *core, u32 type)
134 {
135 return core->ops->core_trigger_ssr(core, type);
136 }
137
hfi_core_ping(struct venus_core * core)138 int hfi_core_ping(struct venus_core *core)
139 {
140 int ret;
141
142 mutex_lock(&core->lock);
143
144 ret = core->ops->core_ping(core, 0xbeef);
145 if (ret)
146 goto unlock;
147
148 ret = wait_for_completion_timeout(&core->done, TIMEOUT);
149 if (!ret) {
150 ret = -ETIMEDOUT;
151 goto unlock;
152 }
153 ret = 0;
154 if (core->error != HFI_ERR_NONE)
155 ret = -ENODEV;
156 unlock:
157 mutex_unlock(&core->lock);
158 return ret;
159 }
160
wait_session_msg(struct venus_inst * inst)161 static int wait_session_msg(struct venus_inst *inst)
162 {
163 int ret;
164
165 ret = wait_for_completion_timeout(&inst->done, TIMEOUT);
166 if (!ret)
167 return -ETIMEDOUT;
168
169 if (inst->error != HFI_ERR_NONE)
170 return -EIO;
171
172 return 0;
173 }
174
hfi_session_create(struct venus_inst * inst,const struct hfi_inst_ops * ops)175 int hfi_session_create(struct venus_inst *inst, const struct hfi_inst_ops *ops)
176 {
177 struct venus_core *core = inst->core;
178
179 if (!ops)
180 return -EINVAL;
181
182 inst->state = INST_UNINIT;
183 init_completion(&inst->done);
184 inst->ops = ops;
185
186 mutex_lock(&core->lock);
187 list_add_tail(&inst->list, &core->instances);
188 atomic_inc(&core->insts_count);
189 mutex_unlock(&core->lock);
190
191 return 0;
192 }
193 EXPORT_SYMBOL_GPL(hfi_session_create);
194
hfi_session_init(struct venus_inst * inst,u32 pixfmt)195 int hfi_session_init(struct venus_inst *inst, u32 pixfmt)
196 {
197 struct venus_core *core = inst->core;
198 const struct hfi_ops *ops = core->ops;
199 int ret;
200
201 if (inst->state != INST_UNINIT)
202 return -EINVAL;
203
204 inst->hfi_codec = to_codec_type(pixfmt);
205 reinit_completion(&inst->done);
206
207 ret = ops->session_init(inst, inst->session_type, inst->hfi_codec);
208 if (ret)
209 return ret;
210
211 ret = wait_session_msg(inst);
212 if (ret)
213 return ret;
214
215 inst->state = INST_INIT;
216
217 return 0;
218 }
219 EXPORT_SYMBOL_GPL(hfi_session_init);
220
hfi_session_destroy(struct venus_inst * inst)221 void hfi_session_destroy(struct venus_inst *inst)
222 {
223 struct venus_core *core = inst->core;
224
225 mutex_lock(&core->lock);
226 list_del_init(&inst->list);
227 if (atomic_dec_and_test(&core->insts_count))
228 wake_up_var(&core->insts_count);
229 mutex_unlock(&core->lock);
230 }
231 EXPORT_SYMBOL_GPL(hfi_session_destroy);
232
hfi_session_deinit(struct venus_inst * inst)233 int hfi_session_deinit(struct venus_inst *inst)
234 {
235 const struct hfi_ops *ops = inst->core->ops;
236 int ret;
237
238 if (inst->state == INST_UNINIT)
239 return 0;
240
241 if (inst->state < INST_INIT)
242 return -EINVAL;
243
244 reinit_completion(&inst->done);
245
246 ret = ops->session_end(inst);
247 if (ret)
248 return ret;
249
250 ret = wait_session_msg(inst);
251 if (ret)
252 return ret;
253
254 inst->state = INST_UNINIT;
255
256 return 0;
257 }
258 EXPORT_SYMBOL_GPL(hfi_session_deinit);
259
hfi_session_start(struct venus_inst * inst)260 int hfi_session_start(struct venus_inst *inst)
261 {
262 const struct hfi_ops *ops = inst->core->ops;
263 int ret;
264
265 if (inst->state != INST_LOAD_RESOURCES)
266 return -EINVAL;
267
268 reinit_completion(&inst->done);
269
270 ret = ops->session_start(inst);
271 if (ret)
272 return ret;
273
274 ret = wait_session_msg(inst);
275 if (ret)
276 return ret;
277
278 inst->state = INST_START;
279
280 return 0;
281 }
282 EXPORT_SYMBOL_GPL(hfi_session_start);
283
hfi_session_stop(struct venus_inst * inst)284 int hfi_session_stop(struct venus_inst *inst)
285 {
286 const struct hfi_ops *ops = inst->core->ops;
287 int ret;
288
289 if (inst->state != INST_START)
290 return -EINVAL;
291
292 reinit_completion(&inst->done);
293
294 ret = ops->session_stop(inst);
295 if (ret)
296 return ret;
297
298 ret = wait_session_msg(inst);
299 if (ret)
300 return ret;
301
302 inst->state = INST_STOP;
303
304 return 0;
305 }
306 EXPORT_SYMBOL_GPL(hfi_session_stop);
307
hfi_session_continue(struct venus_inst * inst)308 int hfi_session_continue(struct venus_inst *inst)
309 {
310 struct venus_core *core = inst->core;
311
312 if (core->res->hfi_version == HFI_VERSION_1XX)
313 return 0;
314
315 return core->ops->session_continue(inst);
316 }
317 EXPORT_SYMBOL_GPL(hfi_session_continue);
318
hfi_session_abort(struct venus_inst * inst)319 int hfi_session_abort(struct venus_inst *inst)
320 {
321 const struct hfi_ops *ops = inst->core->ops;
322 int ret;
323
324 reinit_completion(&inst->done);
325
326 ret = ops->session_abort(inst);
327 if (ret)
328 return ret;
329
330 ret = wait_session_msg(inst);
331 if (ret)
332 return ret;
333
334 return 0;
335 }
336 EXPORT_SYMBOL_GPL(hfi_session_abort);
337
hfi_session_load_res(struct venus_inst * inst)338 int hfi_session_load_res(struct venus_inst *inst)
339 {
340 const struct hfi_ops *ops = inst->core->ops;
341 int ret;
342
343 if (inst->state != INST_INIT)
344 return -EINVAL;
345
346 reinit_completion(&inst->done);
347
348 ret = ops->session_load_res(inst);
349 if (ret)
350 return ret;
351
352 ret = wait_session_msg(inst);
353 if (ret)
354 return ret;
355
356 inst->state = INST_LOAD_RESOURCES;
357
358 return 0;
359 }
360
hfi_session_unload_res(struct venus_inst * inst)361 int hfi_session_unload_res(struct venus_inst *inst)
362 {
363 const struct hfi_ops *ops = inst->core->ops;
364 int ret;
365
366 if (inst->state != INST_STOP)
367 return -EINVAL;
368
369 reinit_completion(&inst->done);
370
371 ret = ops->session_release_res(inst);
372 if (ret)
373 return ret;
374
375 ret = wait_session_msg(inst);
376 if (ret)
377 return ret;
378
379 inst->state = INST_RELEASE_RESOURCES;
380
381 return 0;
382 }
383 EXPORT_SYMBOL_GPL(hfi_session_unload_res);
384
hfi_session_flush(struct venus_inst * inst,u32 type)385 int hfi_session_flush(struct venus_inst *inst, u32 type)
386 {
387 const struct hfi_ops *ops = inst->core->ops;
388 int ret;
389
390 reinit_completion(&inst->done);
391
392 ret = ops->session_flush(inst, type);
393 if (ret)
394 return ret;
395
396 ret = wait_session_msg(inst);
397 if (ret)
398 return ret;
399
400 return 0;
401 }
402 EXPORT_SYMBOL_GPL(hfi_session_flush);
403
hfi_session_set_buffers(struct venus_inst * inst,struct hfi_buffer_desc * bd)404 int hfi_session_set_buffers(struct venus_inst *inst, struct hfi_buffer_desc *bd)
405 {
406 const struct hfi_ops *ops = inst->core->ops;
407
408 return ops->session_set_buffers(inst, bd);
409 }
410
hfi_session_unset_buffers(struct venus_inst * inst,struct hfi_buffer_desc * bd)411 int hfi_session_unset_buffers(struct venus_inst *inst,
412 struct hfi_buffer_desc *bd)
413 {
414 const struct hfi_ops *ops = inst->core->ops;
415 int ret;
416
417 reinit_completion(&inst->done);
418
419 ret = ops->session_unset_buffers(inst, bd);
420 if (ret)
421 return ret;
422
423 if (!bd->response_required)
424 return 0;
425
426 ret = wait_session_msg(inst);
427 if (ret)
428 return ret;
429
430 return 0;
431 }
432
hfi_session_get_property(struct venus_inst * inst,u32 ptype,union hfi_get_property * hprop)433 int hfi_session_get_property(struct venus_inst *inst, u32 ptype,
434 union hfi_get_property *hprop)
435 {
436 const struct hfi_ops *ops = inst->core->ops;
437 int ret;
438
439 if (inst->state < INST_INIT || inst->state >= INST_STOP)
440 return -EINVAL;
441
442 reinit_completion(&inst->done);
443
444 ret = ops->session_get_property(inst, ptype);
445 if (ret)
446 return ret;
447
448 ret = wait_session_msg(inst);
449 if (ret)
450 return ret;
451
452 *hprop = inst->hprop;
453
454 return 0;
455 }
456 EXPORT_SYMBOL_GPL(hfi_session_get_property);
457
hfi_session_set_property(struct venus_inst * inst,u32 ptype,void * pdata)458 int hfi_session_set_property(struct venus_inst *inst, u32 ptype, void *pdata)
459 {
460 const struct hfi_ops *ops = inst->core->ops;
461
462 if (inst->state < INST_INIT || inst->state >= INST_STOP)
463 return -EINVAL;
464
465 return ops->session_set_property(inst, ptype, pdata);
466 }
467 EXPORT_SYMBOL_GPL(hfi_session_set_property);
468
hfi_session_process_buf(struct venus_inst * inst,struct hfi_frame_data * fd)469 int hfi_session_process_buf(struct venus_inst *inst, struct hfi_frame_data *fd)
470 {
471 const struct hfi_ops *ops = inst->core->ops;
472
473 if (fd->buffer_type == HFI_BUFFER_INPUT)
474 return ops->session_etb(inst, fd);
475 else if (fd->buffer_type == HFI_BUFFER_OUTPUT ||
476 fd->buffer_type == HFI_BUFFER_OUTPUT2)
477 return ops->session_ftb(inst, fd);
478
479 return -EINVAL;
480 }
481 EXPORT_SYMBOL_GPL(hfi_session_process_buf);
482
hfi_isr_thread(int irq,void * dev_id)483 irqreturn_t hfi_isr_thread(int irq, void *dev_id)
484 {
485 struct venus_core *core = dev_id;
486
487 return core->ops->isr_thread(core);
488 }
489
hfi_isr(int irq,void * dev)490 irqreturn_t hfi_isr(int irq, void *dev)
491 {
492 struct venus_core *core = dev;
493
494 return core->ops->isr(core);
495 }
496
hfi_create(struct venus_core * core,const struct hfi_core_ops * ops)497 int hfi_create(struct venus_core *core, const struct hfi_core_ops *ops)
498 {
499 int ret;
500
501 if (!ops)
502 return -EINVAL;
503
504 atomic_set(&core->insts_count, 0);
505 core->core_ops = ops;
506 core->state = CORE_UNINIT;
507 init_completion(&core->done);
508 pkt_set_version(core->res->hfi_version);
509 ret = venus_hfi_create(core);
510
511 return ret;
512 }
513
hfi_destroy(struct venus_core * core)514 void hfi_destroy(struct venus_core *core)
515 {
516 venus_hfi_destroy(core);
517 }
518
