xref: /linux/drivers/media/platform/qcom/venus/venc.c (revision 746680ec6696585e30db3e18c93a63df9cbec39c)
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/clk.h>
7 #include <linux/module.h>
8 #include <linux/mod_devicetable.h>
9 #include <linux/platform_device.h>
10 #include <linux/pm_runtime.h>
11 #include <linux/slab.h>
12 #include <media/v4l2-mem2mem.h>
13 #include <media/videobuf2-dma-contig.h>
14 #include <media/v4l2-ioctl.h>
15 #include <media/v4l2-event.h>
16 #include <media/v4l2-ctrls.h>
17 
18 #include "hfi_venus_io.h"
19 #include "hfi_parser.h"
20 #include "core.h"
21 #include "helpers.h"
22 #include "venc.h"
23 #include "pm_helpers.h"
24 
25 #define NUM_B_FRAMES_MAX	4
26 
27 /*
28  * Three resons to keep MPLANE formats (despite that the number of planes
29  * currently is one):
30  * - the MPLANE formats allow only one plane to be used
31  * - the downstream driver use MPLANE formats too
32  * - future firmware versions could add support for >1 planes
33  */
34 static const struct venus_format venc_formats[] = {
35 	[VENUS_FMT_NV12] = {
36 		.pixfmt = V4L2_PIX_FMT_NV12,
37 		.num_planes = 1,
38 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
39 	},
40 	[VENUS_FMT_H264] = {
41 		.pixfmt = V4L2_PIX_FMT_H264,
42 		.num_planes = 1,
43 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
44 	},
45 	[VENUS_FMT_VP8] = {
46 		.pixfmt = V4L2_PIX_FMT_VP8,
47 		.num_planes = 1,
48 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
49 	},
50 	[VENUS_FMT_HEVC] = {
51 		.pixfmt = V4L2_PIX_FMT_HEVC,
52 		.num_planes = 1,
53 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
54 	},
55 	[VENUS_FMT_MPEG4] = {
56 		.pixfmt = V4L2_PIX_FMT_MPEG4,
57 		.num_planes = 1,
58 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
59 	},
60 	[VENUS_FMT_H263] = {
61 		.pixfmt = V4L2_PIX_FMT_H263,
62 		.num_planes = 1,
63 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
64 	},
65 };
66 
67 static const struct venus_format *
68 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
69 {
70 	const struct venus_format *fmt = venc_formats;
71 	unsigned int size = ARRAY_SIZE(venc_formats);
72 	unsigned int i;
73 
74 	for (i = 0; i < size; i++) {
75 		if (fmt[i].pixfmt == pixfmt)
76 			break;
77 	}
78 
79 	if (i == size || fmt[i].type != type)
80 		return NULL;
81 
82 	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
83 	    !venus_helper_check_codec(inst, fmt[i].pixfmt))
84 		return NULL;
85 
86 	return &fmt[i];
87 }
88 
89 static const struct venus_format *
90 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
91 {
92 	const struct venus_format *fmt = venc_formats;
93 	unsigned int size = ARRAY_SIZE(venc_formats);
94 	unsigned int i, k = 0;
95 
96 	if (index > size)
97 		return NULL;
98 
99 	for (i = 0; i < size; i++) {
100 		bool valid;
101 
102 		if (fmt[i].type != type)
103 			continue;
104 		valid = type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
105 			venus_helper_check_codec(inst, fmt[i].pixfmt);
106 		if (k == index && valid)
107 			break;
108 		if (valid)
109 			k++;
110 	}
111 
112 	if (i == size)
113 		return NULL;
114 
115 	return &fmt[i];
116 }
117 
118 static int venc_v4l2_to_hfi(int id, int value)
119 {
120 	switch (id) {
121 	case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE:
122 		switch (value) {
123 		case V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC:
124 		default:
125 			return HFI_H264_ENTROPY_CAVLC;
126 		case V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC:
127 			return HFI_H264_ENTROPY_CABAC;
128 		}
129 	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
130 		switch (value) {
131 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED:
132 		default:
133 			return HFI_H264_DB_MODE_ALL_BOUNDARY;
134 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED:
135 			return HFI_H264_DB_MODE_DISABLE;
136 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY:
137 			return HFI_H264_DB_MODE_SKIP_SLICE_BOUNDARY;
138 		}
139 	}
140 
141 	return 0;
142 }
143 
144 static int
145 venc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
146 {
147 	strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
148 	strscpy(cap->card, "Qualcomm Venus video encoder", sizeof(cap->card));
149 	strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
150 
151 	return 0;
152 }
153 
154 static int venc_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
155 {
156 	struct venus_inst *inst = to_inst(file);
157 	const struct venus_format *fmt;
158 
159 	fmt = find_format_by_index(inst, f->index, f->type);
160 
161 	memset(f->reserved, 0, sizeof(f->reserved));
162 
163 	if (!fmt)
164 		return -EINVAL;
165 
166 	f->pixelformat = fmt->pixfmt;
167 
168 	return 0;
169 }
170 
171 static const struct venus_format *
172 venc_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
173 {
174 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
175 	struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
176 	const struct venus_format *fmt;
177 	u32 sizeimage;
178 
179 	memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
180 	memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
181 
182 	fmt = find_format(inst, pixmp->pixelformat, f->type);
183 	if (!fmt) {
184 		if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
185 			pixmp->pixelformat = V4L2_PIX_FMT_H264;
186 		else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
187 			pixmp->pixelformat = V4L2_PIX_FMT_NV12;
188 		else
189 			return NULL;
190 		fmt = find_format(inst, pixmp->pixelformat, f->type);
191 		if (!fmt)
192 			return NULL;
193 	}
194 
195 	pixmp->width = clamp(pixmp->width, frame_width_min(inst),
196 			     frame_width_max(inst));
197 	pixmp->height = clamp(pixmp->height, frame_height_min(inst),
198 			      frame_height_max(inst));
199 
200 	pixmp->width = ALIGN(pixmp->width, 128);
201 	pixmp->height = ALIGN(pixmp->height, 32);
202 
203 	pixmp->width = ALIGN(pixmp->width, 2);
204 	pixmp->height = ALIGN(pixmp->height, 2);
205 
206 	if (pixmp->field == V4L2_FIELD_ANY)
207 		pixmp->field = V4L2_FIELD_NONE;
208 	pixmp->num_planes = fmt->num_planes;
209 	pixmp->flags = 0;
210 
211 	sizeimage = venus_helper_get_framesz(pixmp->pixelformat,
212 					     pixmp->width,
213 					     pixmp->height);
214 	pfmt[0].sizeimage = max(ALIGN(pfmt[0].sizeimage, SZ_4K), sizeimage);
215 
216 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
217 		pfmt[0].bytesperline = ALIGN(pixmp->width, 128);
218 	else
219 		pfmt[0].bytesperline = 0;
220 
221 	return fmt;
222 }
223 
224 static int venc_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
225 {
226 	struct venus_inst *inst = to_inst(file);
227 
228 	venc_try_fmt_common(inst, f);
229 
230 	return 0;
231 }
232 
233 static int venc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
234 {
235 	struct venus_inst *inst = to_inst(file);
236 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
237 	struct v4l2_pix_format_mplane orig_pixmp;
238 	const struct venus_format *fmt;
239 	struct v4l2_format format;
240 	u32 pixfmt_out = 0, pixfmt_cap = 0;
241 	struct vb2_queue *q;
242 
243 	q = v4l2_m2m_get_vq(inst->m2m_ctx, f->type);
244 	if (!q)
245 		return -EINVAL;
246 
247 	if (vb2_is_busy(q))
248 		return -EBUSY;
249 
250 	orig_pixmp = *pixmp;
251 
252 	fmt = venc_try_fmt_common(inst, f);
253 	if (!fmt)
254 		return -EINVAL;
255 
256 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
257 		pixfmt_out = pixmp->pixelformat;
258 		pixfmt_cap = inst->fmt_cap->pixfmt;
259 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
260 		pixfmt_cap = pixmp->pixelformat;
261 		pixfmt_out = inst->fmt_out->pixfmt;
262 	}
263 
264 	memset(&format, 0, sizeof(format));
265 
266 	format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
267 	format.fmt.pix_mp.pixelformat = pixfmt_out;
268 	format.fmt.pix_mp.width = orig_pixmp.width;
269 	format.fmt.pix_mp.height = orig_pixmp.height;
270 	venc_try_fmt_common(inst, &format);
271 
272 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
273 		inst->out_width = format.fmt.pix_mp.width;
274 		inst->out_height = format.fmt.pix_mp.height;
275 		inst->colorspace = pixmp->colorspace;
276 		inst->ycbcr_enc = pixmp->ycbcr_enc;
277 		inst->quantization = pixmp->quantization;
278 		inst->xfer_func = pixmp->xfer_func;
279 	}
280 
281 	memset(&format, 0, sizeof(format));
282 
283 	format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
284 	format.fmt.pix_mp.pixelformat = pixfmt_cap;
285 	format.fmt.pix_mp.width = orig_pixmp.width;
286 	format.fmt.pix_mp.height = orig_pixmp.height;
287 	venc_try_fmt_common(inst, &format);
288 
289 	inst->width = format.fmt.pix_mp.width;
290 	inst->height = format.fmt.pix_mp.height;
291 
292 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
293 		inst->fmt_out = fmt;
294 	else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
295 		inst->fmt_cap = fmt;
296 		inst->output_buf_size = pixmp->plane_fmt[0].sizeimage;
297 	}
298 
299 	return 0;
300 }
301 
302 static int venc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
303 {
304 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
305 	struct venus_inst *inst = to_inst(file);
306 	const struct venus_format *fmt;
307 
308 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
309 		fmt = inst->fmt_cap;
310 	else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
311 		fmt = inst->fmt_out;
312 	else
313 		return -EINVAL;
314 
315 	pixmp->pixelformat = fmt->pixfmt;
316 
317 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
318 		pixmp->width = inst->width;
319 		pixmp->height = inst->height;
320 		pixmp->colorspace = inst->colorspace;
321 		pixmp->ycbcr_enc = inst->ycbcr_enc;
322 		pixmp->quantization = inst->quantization;
323 		pixmp->xfer_func = inst->xfer_func;
324 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
325 		pixmp->width = inst->out_width;
326 		pixmp->height = inst->out_height;
327 	}
328 
329 	venc_try_fmt_common(inst, f);
330 
331 	return 0;
332 }
333 
334 static int
335 venc_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
336 {
337 	struct venus_inst *inst = to_inst(file);
338 
339 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
340 		return -EINVAL;
341 
342 	switch (s->target) {
343 	case V4L2_SEL_TGT_CROP_DEFAULT:
344 	case V4L2_SEL_TGT_CROP_BOUNDS:
345 		s->r.width = inst->out_width;
346 		s->r.height = inst->out_height;
347 		break;
348 	case V4L2_SEL_TGT_CROP:
349 		s->r.width = inst->width;
350 		s->r.height = inst->height;
351 		break;
352 	default:
353 		return -EINVAL;
354 	}
355 
356 	s->r.top = 0;
357 	s->r.left = 0;
358 
359 	return 0;
360 }
361 
362 static int
363 venc_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
364 {
365 	struct venus_inst *inst = to_inst(file);
366 
367 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
368 		return -EINVAL;
369 
370 	if (s->r.width > inst->out_width ||
371 	    s->r.height > inst->out_height)
372 		return -EINVAL;
373 
374 	s->r.width = ALIGN(s->r.width, 2);
375 	s->r.height = ALIGN(s->r.height, 2);
376 
377 	switch (s->target) {
378 	case V4L2_SEL_TGT_CROP:
379 		s->r.top = 0;
380 		s->r.left = 0;
381 		inst->width = s->r.width;
382 		inst->height = s->r.height;
383 		break;
384 	default:
385 		return -EINVAL;
386 	}
387 
388 	return 0;
389 }
390 
391 static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
392 {
393 	struct venus_inst *inst = to_inst(file);
394 	struct v4l2_outputparm *out = &a->parm.output;
395 	struct v4l2_fract *timeperframe = &out->timeperframe;
396 	u64 us_per_frame, fps;
397 
398 	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
399 	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
400 		return -EINVAL;
401 
402 	memset(out->reserved, 0, sizeof(out->reserved));
403 
404 	if (!timeperframe->denominator)
405 		timeperframe->denominator = inst->timeperframe.denominator;
406 	if (!timeperframe->numerator)
407 		timeperframe->numerator = inst->timeperframe.numerator;
408 
409 	out->capability = V4L2_CAP_TIMEPERFRAME;
410 
411 	us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
412 	do_div(us_per_frame, timeperframe->denominator);
413 
414 	us_per_frame = clamp(us_per_frame, 1, USEC_PER_SEC);
415 	fps = USEC_PER_SEC / (u32)us_per_frame;
416 	fps = min(VENUS_MAX_FPS, fps);
417 
418 	inst->timeperframe = *timeperframe;
419 	inst->fps = fps;
420 
421 	return 0;
422 }
423 
424 static int venc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
425 {
426 	struct venus_inst *inst = to_inst(file);
427 
428 	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
429 	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
430 		return -EINVAL;
431 
432 	a->parm.output.capability |= V4L2_CAP_TIMEPERFRAME;
433 	a->parm.output.timeperframe = inst->timeperframe;
434 
435 	return 0;
436 }
437 
438 static int venc_enum_framesizes(struct file *file, void *fh,
439 				struct v4l2_frmsizeenum *fsize)
440 {
441 	struct venus_inst *inst = to_inst(file);
442 	const struct venus_format *fmt;
443 
444 	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
445 
446 	fmt = find_format(inst, fsize->pixel_format,
447 			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
448 	if (!fmt) {
449 		fmt = find_format(inst, fsize->pixel_format,
450 				  V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
451 		if (!fmt)
452 			return -EINVAL;
453 	}
454 
455 	if (fsize->index)
456 		return -EINVAL;
457 
458 	fsize->stepwise.min_width = frame_width_min(inst);
459 	fsize->stepwise.max_width = frame_width_max(inst);
460 	fsize->stepwise.step_width = frame_width_step(inst);
461 	fsize->stepwise.min_height = frame_height_min(inst);
462 	fsize->stepwise.max_height = frame_height_max(inst);
463 	fsize->stepwise.step_height = frame_height_step(inst);
464 
465 	return 0;
466 }
467 
468 static int venc_enum_frameintervals(struct file *file, void *fh,
469 				    struct v4l2_frmivalenum *fival)
470 {
471 	struct venus_inst *inst = to_inst(file);
472 	const struct venus_format *fmt;
473 	unsigned int framerate_factor = 1;
474 
475 	fival->type = V4L2_FRMIVAL_TYPE_STEPWISE;
476 
477 	fmt = find_format(inst, fival->pixel_format,
478 			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
479 	if (!fmt) {
480 		fmt = find_format(inst, fival->pixel_format,
481 				  V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
482 		if (!fmt)
483 			return -EINVAL;
484 	}
485 
486 	if (fival->index)
487 		return -EINVAL;
488 
489 	if (!fival->width || !fival->height)
490 		return -EINVAL;
491 
492 	if (fival->width > frame_width_max(inst) ||
493 	    fival->width < frame_width_min(inst) ||
494 	    fival->height > frame_height_max(inst) ||
495 	    fival->height < frame_height_min(inst))
496 		return -EINVAL;
497 
498 	if (IS_V1(inst->core)) {
499 		/* framerate is reported in 1/65535 fps unit */
500 		framerate_factor = (1 << 16);
501 	}
502 
503 	fival->stepwise.min.numerator = 1;
504 	fival->stepwise.min.denominator = frate_max(inst) / framerate_factor;
505 	fival->stepwise.max.numerator = 1;
506 	fival->stepwise.max.denominator = frate_min(inst) / framerate_factor;
507 	fival->stepwise.step.numerator = 1;
508 	fival->stepwise.step.denominator = frate_max(inst) / framerate_factor;
509 
510 	return 0;
511 }
512 
513 static int venc_subscribe_event(struct v4l2_fh *fh,
514 				const struct v4l2_event_subscription *sub)
515 {
516 	switch (sub->type) {
517 	case V4L2_EVENT_EOS:
518 		return v4l2_event_subscribe(fh, sub, 2, NULL);
519 	case V4L2_EVENT_CTRL:
520 		return v4l2_ctrl_subscribe_event(fh, sub);
521 	default:
522 		return -EINVAL;
523 	}
524 }
525 
526 static int
527 venc_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *cmd)
528 {
529 	struct venus_inst *inst = to_inst(file);
530 	struct hfi_frame_data fdata = {0};
531 	int ret = 0;
532 
533 	ret = v4l2_m2m_ioctl_try_encoder_cmd(file, fh, cmd);
534 	if (ret)
535 		return ret;
536 
537 	mutex_lock(&inst->lock);
538 
539 	if (cmd->cmd == V4L2_ENC_CMD_STOP &&
540 	    inst->enc_state == VENUS_ENC_STATE_ENCODING) {
541 		/*
542 		 * Implement V4L2_ENC_CMD_STOP by enqueue an empty buffer on
543 		 * encoder input to signal EOS.
544 		 */
545 		if (!(inst->streamon_out && inst->streamon_cap))
546 			goto unlock;
547 
548 		fdata.buffer_type = HFI_BUFFER_INPUT;
549 		fdata.flags |= HFI_BUFFERFLAG_EOS;
550 		fdata.device_addr = 0xdeadb000;
551 
552 		ret = hfi_session_process_buf(inst, &fdata);
553 
554 		inst->enc_state = VENUS_ENC_STATE_DRAIN;
555 	} else if (cmd->cmd == V4L2_ENC_CMD_START) {
556 		if (inst->enc_state == VENUS_ENC_STATE_DRAIN) {
557 			ret = -EBUSY;
558 			goto unlock;
559 		}
560 		if (inst->enc_state == VENUS_ENC_STATE_STOPPED) {
561 			vb2_clear_last_buffer_dequeued(&inst->fh.m2m_ctx->cap_q_ctx.q);
562 			inst->enc_state = VENUS_ENC_STATE_ENCODING;
563 		}
564 	}
565 
566 unlock:
567 	mutex_unlock(&inst->lock);
568 	return ret;
569 }
570 
571 static const struct v4l2_ioctl_ops venc_ioctl_ops = {
572 	.vidioc_querycap = venc_querycap,
573 	.vidioc_enum_fmt_vid_cap = venc_enum_fmt,
574 	.vidioc_enum_fmt_vid_out = venc_enum_fmt,
575 	.vidioc_s_fmt_vid_cap_mplane = venc_s_fmt,
576 	.vidioc_s_fmt_vid_out_mplane = venc_s_fmt,
577 	.vidioc_g_fmt_vid_cap_mplane = venc_g_fmt,
578 	.vidioc_g_fmt_vid_out_mplane = venc_g_fmt,
579 	.vidioc_try_fmt_vid_cap_mplane = venc_try_fmt,
580 	.vidioc_try_fmt_vid_out_mplane = venc_try_fmt,
581 	.vidioc_g_selection = venc_g_selection,
582 	.vidioc_s_selection = venc_s_selection,
583 	.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
584 	.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
585 	.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
586 	.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
587 	.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
588 	.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
589 	.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
590 	.vidioc_streamon = v4l2_m2m_ioctl_streamon,
591 	.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
592 	.vidioc_s_parm = venc_s_parm,
593 	.vidioc_g_parm = venc_g_parm,
594 	.vidioc_enum_framesizes = venc_enum_framesizes,
595 	.vidioc_enum_frameintervals = venc_enum_frameintervals,
596 	.vidioc_subscribe_event = venc_subscribe_event,
597 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
598 	.vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd,
599 	.vidioc_encoder_cmd = venc_encoder_cmd,
600 };
601 
602 static int venc_pm_get(struct venus_inst *inst)
603 {
604 	struct venus_core *core = inst->core;
605 	struct device *dev = core->dev_enc;
606 	int ret;
607 
608 	mutex_lock(&core->pm_lock);
609 	ret = pm_runtime_resume_and_get(dev);
610 	mutex_unlock(&core->pm_lock);
611 
612 	return ret < 0 ? ret : 0;
613 }
614 
615 static int venc_pm_put(struct venus_inst *inst, bool autosuspend)
616 {
617 	struct venus_core *core = inst->core;
618 	struct device *dev = core->dev_enc;
619 	int ret;
620 
621 	mutex_lock(&core->pm_lock);
622 
623 	if (autosuspend)
624 		ret = pm_runtime_put_autosuspend(dev);
625 	else
626 		ret = pm_runtime_put_sync(dev);
627 
628 	mutex_unlock(&core->pm_lock);
629 
630 	return ret < 0 ? ret : 0;
631 }
632 
633 static int venc_pm_get_put(struct venus_inst *inst)
634 {
635 	struct venus_core *core = inst->core;
636 	struct device *dev = core->dev_enc;
637 	int ret = 0;
638 
639 	mutex_lock(&core->pm_lock);
640 
641 	if (pm_runtime_suspended(dev)) {
642 		ret = pm_runtime_resume_and_get(dev);
643 		if (ret < 0)
644 			goto error;
645 
646 		ret = pm_runtime_put_autosuspend(dev);
647 	}
648 
649 error:
650 	mutex_unlock(&core->pm_lock);
651 
652 	return ret < 0 ? ret : 0;
653 }
654 
655 static void venc_pm_touch(struct venus_inst *inst)
656 {
657 	pm_runtime_mark_last_busy(inst->core->dev_enc);
658 }
659 
660 static int venc_set_properties(struct venus_inst *inst)
661 {
662 	struct venc_controls *ctr = &inst->controls.enc;
663 	struct hfi_intra_period intra_period;
664 	struct hfi_framerate frate;
665 	struct hfi_bitrate brate;
666 	struct hfi_idr_period idrp;
667 	struct hfi_quantization quant;
668 	struct hfi_quantization_range quant_range;
669 	struct hfi_quantization_range_v2 quant_range_v2;
670 	struct hfi_enable en;
671 	struct hfi_ltr_mode ltr_mode;
672 	struct hfi_intra_refresh intra_refresh = {};
673 	u32 ptype, rate_control, bitrate;
674 	u32 profile, level;
675 	int ret;
676 
677 	ret = venus_helper_set_work_mode(inst);
678 	if (ret)
679 		return ret;
680 
681 	ptype = HFI_PROPERTY_CONFIG_FRAME_RATE;
682 	frate.buffer_type = HFI_BUFFER_OUTPUT;
683 	frate.framerate = inst->fps * (1 << 16);
684 
685 	ret = hfi_session_set_property(inst, ptype, &frate);
686 	if (ret)
687 		return ret;
688 
689 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264) {
690 		struct hfi_h264_vui_timing_info info;
691 		struct hfi_h264_entropy_control entropy;
692 		struct hfi_h264_db_control deblock;
693 		struct hfi_h264_8x8_transform h264_transform;
694 
695 		ptype = HFI_PROPERTY_PARAM_VENC_H264_VUI_TIMING_INFO;
696 		info.enable = 1;
697 		info.fixed_framerate = 1;
698 		info.time_scale = NSEC_PER_SEC;
699 
700 		ret = hfi_session_set_property(inst, ptype, &info);
701 		if (ret)
702 			return ret;
703 
704 		ptype = HFI_PROPERTY_PARAM_VENC_H264_ENTROPY_CONTROL;
705 		entropy.entropy_mode = venc_v4l2_to_hfi(
706 					  V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE,
707 					  ctr->h264_entropy_mode);
708 		entropy.cabac_model = HFI_H264_CABAC_MODEL_0;
709 
710 		ret = hfi_session_set_property(inst, ptype, &entropy);
711 		if (ret)
712 			return ret;
713 
714 		ptype = HFI_PROPERTY_PARAM_VENC_H264_DEBLOCK_CONTROL;
715 		deblock.mode = venc_v4l2_to_hfi(
716 				      V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
717 				      ctr->h264_loop_filter_mode);
718 		deblock.slice_alpha_offset = ctr->h264_loop_filter_alpha;
719 		deblock.slice_beta_offset = ctr->h264_loop_filter_beta;
720 
721 		ret = hfi_session_set_property(inst, ptype, &deblock);
722 		if (ret)
723 			return ret;
724 
725 		ptype = HFI_PROPERTY_PARAM_VENC_H264_TRANSFORM_8X8;
726 		h264_transform.enable_type = 0;
727 		if (ctr->profile.h264 == V4L2_MPEG_VIDEO_H264_PROFILE_HIGH ||
728 		    ctr->profile.h264 == V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_HIGH)
729 			h264_transform.enable_type = ctr->h264_8x8_transform;
730 
731 		ret = hfi_session_set_property(inst, ptype, &h264_transform);
732 		if (ret)
733 			return ret;
734 
735 		if (ctr->layer_bitrate) {
736 			unsigned int i;
737 
738 			ptype = HFI_PROPERTY_PARAM_VENC_HIER_P_MAX_NUM_ENH_LAYER;
739 			ret = hfi_session_set_property(inst, ptype, &ctr->h264_hier_layers);
740 			if (ret)
741 				return ret;
742 
743 			ptype = HFI_PROPERTY_CONFIG_VENC_HIER_P_ENH_LAYER;
744 			ret = hfi_session_set_property(inst, ptype, &ctr->layer_bitrate);
745 			if (ret)
746 				return ret;
747 
748 			for (i = 0; i < ctr->h264_hier_layers; ++i) {
749 				ptype = HFI_PROPERTY_CONFIG_VENC_TARGET_BITRATE;
750 				brate.bitrate = ctr->h264_hier_layer_bitrate[i];
751 				brate.layer_id = i;
752 
753 				ret = hfi_session_set_property(inst, ptype, &brate);
754 				if (ret)
755 					return ret;
756 			}
757 		}
758 	}
759 
760 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
761 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
762 		/* IDR periodicity, n:
763 		 * n = 0 - only the first I-frame is IDR frame
764 		 * n = 1 - all I-frames will be IDR frames
765 		 * n > 1 - every n-th I-frame will be IDR frame
766 		 */
767 		ptype = HFI_PROPERTY_CONFIG_VENC_IDR_PERIOD;
768 		idrp.idr_period = 0;
769 		ret = hfi_session_set_property(inst, ptype, &idrp);
770 		if (ret)
771 			return ret;
772 	}
773 
774 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC &&
775 	    ctr->profile.hevc == V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10) {
776 		struct hfi_hdr10_pq_sei hdr10;
777 		unsigned int c;
778 
779 		ptype = HFI_PROPERTY_PARAM_VENC_HDR10_PQ_SEI;
780 
781 		for (c = 0; c < 3; c++) {
782 			hdr10.mastering.display_primaries_x[c] =
783 				ctr->mastering.display_primaries_x[c];
784 			hdr10.mastering.display_primaries_y[c] =
785 				ctr->mastering.display_primaries_y[c];
786 		}
787 
788 		hdr10.mastering.white_point_x = ctr->mastering.white_point_x;
789 		hdr10.mastering.white_point_y = ctr->mastering.white_point_y;
790 		hdr10.mastering.max_display_mastering_luminance =
791 			ctr->mastering.max_display_mastering_luminance;
792 		hdr10.mastering.min_display_mastering_luminance =
793 			ctr->mastering.min_display_mastering_luminance;
794 
795 		hdr10.cll.max_content_light = ctr->cll.max_content_light_level;
796 		hdr10.cll.max_pic_average_light =
797 			ctr->cll.max_pic_average_light_level;
798 
799 		ret = hfi_session_set_property(inst, ptype, &hdr10);
800 		if (ret)
801 			return ret;
802 	}
803 
804 	if (ctr->num_b_frames) {
805 		u32 max_num_b_frames = NUM_B_FRAMES_MAX;
806 
807 		ptype = HFI_PROPERTY_PARAM_VENC_MAX_NUM_B_FRAMES;
808 		ret = hfi_session_set_property(inst, ptype, &max_num_b_frames);
809 		if (ret)
810 			return ret;
811 	}
812 
813 	ptype = HFI_PROPERTY_CONFIG_VENC_INTRA_PERIOD;
814 	intra_period.pframes = ctr->num_p_frames;
815 	intra_period.bframes = ctr->num_b_frames;
816 
817 	ret = hfi_session_set_property(inst, ptype, &intra_period);
818 	if (ret)
819 		return ret;
820 
821 	if (!ctr->rc_enable)
822 		rate_control = HFI_RATE_CONTROL_OFF;
823 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR)
824 		rate_control = ctr->frame_skip_mode ? HFI_RATE_CONTROL_VBR_VFR :
825 						      HFI_RATE_CONTROL_VBR_CFR;
826 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
827 		rate_control = ctr->frame_skip_mode ? HFI_RATE_CONTROL_CBR_VFR :
828 						      HFI_RATE_CONTROL_CBR_CFR;
829 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CQ)
830 		rate_control = HFI_RATE_CONTROL_CQ;
831 
832 	ptype = HFI_PROPERTY_PARAM_VENC_RATE_CONTROL;
833 	ret = hfi_session_set_property(inst, ptype, &rate_control);
834 	if (ret)
835 		return ret;
836 
837 	if (rate_control == HFI_RATE_CONTROL_CQ && ctr->const_quality) {
838 		struct hfi_heic_frame_quality quality = {};
839 
840 		ptype = HFI_PROPERTY_CONFIG_HEIC_FRAME_QUALITY;
841 		quality.frame_quality = ctr->const_quality;
842 		ret = hfi_session_set_property(inst, ptype, &quality);
843 		if (ret)
844 			return ret;
845 	}
846 
847 	if (!ctr->layer_bitrate) {
848 		if (!ctr->bitrate)
849 			bitrate = 64000;
850 		else
851 			bitrate = ctr->bitrate;
852 
853 		ptype = HFI_PROPERTY_CONFIG_VENC_TARGET_BITRATE;
854 		brate.bitrate = bitrate;
855 		brate.layer_id = 0;
856 
857 		ret = hfi_session_set_property(inst, ptype, &brate);
858 		if (ret)
859 			return ret;
860 
861 		if (!ctr->bitrate_peak)
862 			bitrate *= 2;
863 		else
864 			bitrate = ctr->bitrate_peak;
865 
866 		ptype = HFI_PROPERTY_CONFIG_VENC_MAX_BITRATE;
867 		brate.bitrate = bitrate;
868 		brate.layer_id = 0;
869 
870 		ret = hfi_session_set_property(inst, ptype, &brate);
871 		if (ret)
872 			return ret;
873 	}
874 
875 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
876 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
877 		ptype = HFI_PROPERTY_CONFIG_VENC_SYNC_FRAME_SEQUENCE_HEADER;
878 		if (ctr->header_mode == V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE)
879 			en.enable = 0;
880 		else
881 			en.enable = 1;
882 
883 		ret = hfi_session_set_property(inst, ptype, &en);
884 		if (ret)
885 			return ret;
886 	}
887 
888 	ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP;
889 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
890 		quant.qp_i = ctr->hevc_i_qp;
891 		quant.qp_p = ctr->hevc_p_qp;
892 		quant.qp_b = ctr->hevc_b_qp;
893 	} else {
894 		quant.qp_i = ctr->h264_i_qp;
895 		quant.qp_p = ctr->h264_p_qp;
896 		quant.qp_b = ctr->h264_b_qp;
897 	}
898 	quant.layer_id = 0;
899 	ret = hfi_session_set_property(inst, ptype, &quant);
900 	if (ret)
901 		return ret;
902 
903 	if (inst->core->res->hfi_version == HFI_VERSION_4XX ||
904 	    inst->core->res->hfi_version == HFI_VERSION_6XX) {
905 		ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP_RANGE_V2;
906 
907 		if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
908 			quant_range_v2.min_qp.qp_packed = ctr->hevc_min_qp;
909 			quant_range_v2.max_qp.qp_packed = ctr->hevc_max_qp;
910 		} else if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_VP8) {
911 			quant_range_v2.min_qp.qp_packed = ctr->vp8_min_qp;
912 			quant_range_v2.max_qp.qp_packed = ctr->vp8_max_qp;
913 		} else {
914 			quant_range_v2.min_qp.qp_packed = ctr->h264_min_qp;
915 			quant_range_v2.max_qp.qp_packed = ctr->h264_max_qp;
916 		}
917 
918 		ret = hfi_session_set_property(inst, ptype, &quant_range_v2);
919 	} else {
920 		ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP_RANGE;
921 
922 		if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
923 			quant_range.min_qp = ctr->hevc_min_qp;
924 			quant_range.max_qp = ctr->hevc_max_qp;
925 		} else if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_VP8) {
926 			quant_range.min_qp = ctr->vp8_min_qp;
927 			quant_range.max_qp = ctr->vp8_max_qp;
928 		} else {
929 			quant_range.min_qp = ctr->h264_min_qp;
930 			quant_range.max_qp = ctr->h264_max_qp;
931 		}
932 
933 		quant_range.layer_id = 0;
934 		ret = hfi_session_set_property(inst, ptype, &quant_range);
935 	}
936 
937 	if (ret)
938 		return ret;
939 
940 	ptype = HFI_PROPERTY_PARAM_VENC_LTRMODE;
941 	ltr_mode.ltr_count = ctr->ltr_count;
942 	ltr_mode.ltr_mode = HFI_LTR_MODE_MANUAL;
943 	ltr_mode.trust_mode = 1;
944 	ret = hfi_session_set_property(inst, ptype, &ltr_mode);
945 	if (ret)
946 		return ret;
947 
948 	switch (inst->hfi_codec) {
949 	case HFI_VIDEO_CODEC_H264:
950 		profile = ctr->profile.h264;
951 		level = ctr->level.h264;
952 		break;
953 	case HFI_VIDEO_CODEC_MPEG4:
954 		profile = ctr->profile.mpeg4;
955 		level = ctr->level.mpeg4;
956 		break;
957 	case HFI_VIDEO_CODEC_VP8:
958 		profile = ctr->profile.vp8;
959 		level = 0;
960 		break;
961 	case HFI_VIDEO_CODEC_VP9:
962 		profile = ctr->profile.vp9;
963 		level = ctr->level.vp9;
964 		break;
965 	case HFI_VIDEO_CODEC_HEVC:
966 		profile = ctr->profile.hevc;
967 		level = ctr->level.hevc;
968 		break;
969 	case HFI_VIDEO_CODEC_MPEG2:
970 	default:
971 		profile = 0;
972 		level = 0;
973 		break;
974 	}
975 
976 	ret = venus_helper_set_profile_level(inst, profile, level);
977 	if (ret)
978 		return ret;
979 
980 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
981 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
982 		struct hfi_enable en = {};
983 
984 		ptype = HFI_PROPERTY_PARAM_VENC_H264_GENERATE_AUDNAL;
985 
986 		if (ctr->aud_enable)
987 			en.enable = 1;
988 
989 		ret = hfi_session_set_property(inst, ptype, &en);
990 	}
991 
992 	if ((inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
993 	     inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) &&
994 	    (rate_control == HFI_RATE_CONTROL_CBR_VFR ||
995 	     rate_control == HFI_RATE_CONTROL_CBR_CFR)) {
996 		intra_refresh.mode = HFI_INTRA_REFRESH_NONE;
997 		intra_refresh.cir_mbs = 0;
998 
999 		if (ctr->intra_refresh_period) {
1000 			u32 mbs;
1001 
1002 			mbs = ALIGN(inst->width, 16) * ALIGN(inst->height, 16);
1003 			mbs /= 16 * 16;
1004 			if (mbs % ctr->intra_refresh_period)
1005 				mbs++;
1006 			mbs /= ctr->intra_refresh_period;
1007 
1008 			intra_refresh.cir_mbs = mbs;
1009 			if (ctr->intra_refresh_type ==
1010 			    V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD_TYPE_CYCLIC)
1011 				intra_refresh.mode = HFI_INTRA_REFRESH_CYCLIC;
1012 			else
1013 				intra_refresh.mode = HFI_INTRA_REFRESH_RANDOM;
1014 		}
1015 
1016 		ptype = HFI_PROPERTY_PARAM_VENC_INTRA_REFRESH;
1017 
1018 		ret = hfi_session_set_property(inst, ptype, &intra_refresh);
1019 		if (ret)
1020 			return ret;
1021 	}
1022 
1023 	return 0;
1024 }
1025 
1026 static int venc_init_session(struct venus_inst *inst)
1027 {
1028 	int ret;
1029 
1030 	ret = venus_helper_session_init(inst);
1031 	if (ret == -EALREADY)
1032 		return 0;
1033 	else if (ret)
1034 		return ret;
1035 
1036 	ret = venus_helper_set_stride(inst, inst->out_width,
1037 				      inst->out_height);
1038 	if (ret)
1039 		goto deinit;
1040 
1041 	ret = venus_helper_set_input_resolution(inst, inst->width,
1042 						inst->height);
1043 	if (ret)
1044 		goto deinit;
1045 
1046 	ret = venus_helper_set_output_resolution(inst, inst->width,
1047 						 inst->height,
1048 						 HFI_BUFFER_OUTPUT);
1049 	if (ret)
1050 		goto deinit;
1051 
1052 	ret = venus_helper_set_color_format(inst, inst->fmt_out->pixfmt);
1053 	if (ret)
1054 		goto deinit;
1055 
1056 	ret = venc_set_properties(inst);
1057 	if (ret)
1058 		goto deinit;
1059 
1060 	return 0;
1061 deinit:
1062 	hfi_session_deinit(inst);
1063 	return ret;
1064 }
1065 
1066 static int venc_out_num_buffers(struct venus_inst *inst, unsigned int *num)
1067 {
1068 	struct hfi_buffer_requirements bufreq;
1069 	int ret;
1070 
1071 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1072 	if (ret)
1073 		return ret;
1074 
1075 	*num = bufreq.count_actual;
1076 
1077 	return 0;
1078 }
1079 
1080 static int venc_queue_setup(struct vb2_queue *q,
1081 			    unsigned int *num_buffers, unsigned int *num_planes,
1082 			    unsigned int sizes[], struct device *alloc_devs[])
1083 {
1084 	struct venus_inst *inst = vb2_get_drv_priv(q);
1085 	struct venus_core *core = inst->core;
1086 	unsigned int num, min = 4;
1087 	int ret;
1088 
1089 	if (*num_planes) {
1090 		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
1091 		    *num_planes != inst->fmt_out->num_planes)
1092 			return -EINVAL;
1093 
1094 		if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
1095 		    *num_planes != inst->fmt_cap->num_planes)
1096 			return -EINVAL;
1097 
1098 		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
1099 		    sizes[0] < inst->input_buf_size)
1100 			return -EINVAL;
1101 
1102 		if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
1103 		    sizes[0] < inst->output_buf_size)
1104 			return -EINVAL;
1105 
1106 		return 0;
1107 	}
1108 
1109 	if (test_bit(0, &core->sys_error)) {
1110 		if (inst->nonblock)
1111 			return -EAGAIN;
1112 
1113 		ret = wait_event_interruptible(core->sys_err_done,
1114 					       !test_bit(0, &core->sys_error));
1115 		if (ret)
1116 			return ret;
1117 	}
1118 
1119 	ret = venc_pm_get(inst);
1120 	if (ret)
1121 		return ret;
1122 
1123 	mutex_lock(&inst->lock);
1124 	ret = venc_init_session(inst);
1125 	mutex_unlock(&inst->lock);
1126 
1127 	if (ret)
1128 		goto put_power;
1129 
1130 	ret = venc_pm_put(inst, false);
1131 	if (ret)
1132 		return ret;
1133 
1134 	switch (q->type) {
1135 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
1136 		*num_planes = inst->fmt_out->num_planes;
1137 
1138 		ret = venc_out_num_buffers(inst, &num);
1139 		if (ret)
1140 			break;
1141 
1142 		num = max(num, min);
1143 		*num_buffers = max(*num_buffers, num);
1144 		inst->num_input_bufs = *num_buffers;
1145 
1146 		sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
1147 						    inst->out_width,
1148 						    inst->out_height);
1149 		inst->input_buf_size = sizes[0];
1150 		break;
1151 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
1152 		*num_planes = inst->fmt_cap->num_planes;
1153 		*num_buffers = max(*num_buffers, min);
1154 		inst->num_output_bufs = *num_buffers;
1155 		sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
1156 						    inst->width,
1157 						    inst->height);
1158 		sizes[0] = max(sizes[0], inst->output_buf_size);
1159 		inst->output_buf_size = sizes[0];
1160 		break;
1161 	default:
1162 		ret = -EINVAL;
1163 		break;
1164 	}
1165 
1166 	return ret;
1167 put_power:
1168 	venc_pm_put(inst, false);
1169 	return ret;
1170 }
1171 
1172 static int venc_buf_init(struct vb2_buffer *vb)
1173 {
1174 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1175 
1176 	inst->buf_count++;
1177 
1178 	return venus_helper_vb2_buf_init(vb);
1179 }
1180 
1181 static void venc_release_session(struct venus_inst *inst)
1182 {
1183 	int ret;
1184 
1185 	venc_pm_get(inst);
1186 
1187 	mutex_lock(&inst->lock);
1188 
1189 	ret = hfi_session_deinit(inst);
1190 	if (ret || inst->session_error)
1191 		hfi_session_abort(inst);
1192 
1193 	mutex_unlock(&inst->lock);
1194 
1195 	venus_pm_load_scale(inst);
1196 	INIT_LIST_HEAD(&inst->registeredbufs);
1197 	venus_pm_release_core(inst);
1198 
1199 	venc_pm_put(inst, false);
1200 }
1201 
1202 static void venc_buf_cleanup(struct vb2_buffer *vb)
1203 {
1204 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1205 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1206 	struct venus_buffer *buf = to_venus_buffer(vbuf);
1207 
1208 	mutex_lock(&inst->lock);
1209 	if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1210 		if (!list_empty(&inst->registeredbufs))
1211 			list_del_init(&buf->reg_list);
1212 	mutex_unlock(&inst->lock);
1213 
1214 	inst->buf_count--;
1215 	if (!inst->buf_count)
1216 		venc_release_session(inst);
1217 }
1218 
1219 static int venc_verify_conf(struct venus_inst *inst)
1220 {
1221 	enum hfi_version ver = inst->core->res->hfi_version;
1222 	struct hfi_buffer_requirements bufreq;
1223 	int ret;
1224 
1225 	if (!inst->num_input_bufs || !inst->num_output_bufs)
1226 		return -EINVAL;
1227 
1228 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
1229 	if (ret)
1230 		return ret;
1231 
1232 	if (inst->num_output_bufs < bufreq.count_actual ||
1233 	    inst->num_output_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1234 		return -EINVAL;
1235 
1236 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1237 	if (ret)
1238 		return ret;
1239 
1240 	if (inst->num_input_bufs < bufreq.count_actual ||
1241 	    inst->num_input_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1242 		return -EINVAL;
1243 
1244 	return 0;
1245 }
1246 
1247 static int venc_start_streaming(struct vb2_queue *q, unsigned int count)
1248 {
1249 	struct venus_inst *inst = vb2_get_drv_priv(q);
1250 	int ret;
1251 
1252 	mutex_lock(&inst->lock);
1253 
1254 	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1255 		inst->streamon_out = 1;
1256 	else
1257 		inst->streamon_cap = 1;
1258 
1259 	if (!(inst->streamon_out & inst->streamon_cap)) {
1260 		mutex_unlock(&inst->lock);
1261 		return 0;
1262 	}
1263 
1264 	venus_helper_init_instance(inst);
1265 
1266 	inst->sequence_cap = 0;
1267 	inst->sequence_out = 0;
1268 
1269 	ret = venc_pm_get(inst);
1270 	if (ret)
1271 		goto error;
1272 
1273 	ret = venus_pm_acquire_core(inst);
1274 	if (ret)
1275 		goto put_power;
1276 
1277 	ret = venc_pm_put(inst, true);
1278 	if (ret)
1279 		goto error;
1280 
1281 	ret = venc_set_properties(inst);
1282 	if (ret)
1283 		goto error;
1284 
1285 	ret = venc_verify_conf(inst);
1286 	if (ret)
1287 		goto error;
1288 
1289 	ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1290 					inst->num_output_bufs, 0);
1291 	if (ret)
1292 		goto error;
1293 
1294 	ret = venus_helper_vb2_start_streaming(inst);
1295 	if (ret)
1296 		goto error;
1297 
1298 	inst->enc_state = VENUS_ENC_STATE_ENCODING;
1299 
1300 	mutex_unlock(&inst->lock);
1301 
1302 	return 0;
1303 
1304 put_power:
1305 	venc_pm_put(inst, false);
1306 error:
1307 	venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1308 	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1309 		inst->streamon_out = 0;
1310 	else
1311 		inst->streamon_cap = 0;
1312 	mutex_unlock(&inst->lock);
1313 	return ret;
1314 }
1315 
1316 static void venc_vb2_buf_queue(struct vb2_buffer *vb)
1317 {
1318 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1319 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1320 
1321 	venc_pm_get_put(inst);
1322 
1323 	mutex_lock(&inst->lock);
1324 
1325 	if (inst->enc_state == VENUS_ENC_STATE_STOPPED) {
1326 		vbuf->sequence = inst->sequence_cap++;
1327 		vbuf->field = V4L2_FIELD_NONE;
1328 		vb2_set_plane_payload(vb, 0, 0);
1329 		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1330 		mutex_unlock(&inst->lock);
1331 		return;
1332 	}
1333 
1334 	venus_helper_vb2_buf_queue(vb);
1335 	mutex_unlock(&inst->lock);
1336 }
1337 
1338 static const struct vb2_ops venc_vb2_ops = {
1339 	.queue_setup = venc_queue_setup,
1340 	.buf_init = venc_buf_init,
1341 	.buf_cleanup = venc_buf_cleanup,
1342 	.buf_prepare = venus_helper_vb2_buf_prepare,
1343 	.start_streaming = venc_start_streaming,
1344 	.stop_streaming = venus_helper_vb2_stop_streaming,
1345 	.buf_queue = venc_vb2_buf_queue,
1346 };
1347 
1348 static void venc_buf_done(struct venus_inst *inst, unsigned int buf_type,
1349 			  u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1350 			  u32 hfi_flags, u64 timestamp_us)
1351 {
1352 	struct vb2_v4l2_buffer *vbuf;
1353 	struct vb2_buffer *vb;
1354 	unsigned int type;
1355 
1356 	venc_pm_touch(inst);
1357 
1358 	if (buf_type == HFI_BUFFER_INPUT)
1359 		type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1360 	else
1361 		type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1362 
1363 	vbuf = venus_helper_find_buf(inst, type, tag);
1364 	if (!vbuf)
1365 		return;
1366 
1367 	vbuf->flags = flags;
1368 
1369 	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1370 		vb = &vbuf->vb2_buf;
1371 		vb2_set_plane_payload(vb, 0, bytesused + data_offset);
1372 		vb->planes[0].data_offset = data_offset;
1373 		vb->timestamp = timestamp_us * NSEC_PER_USEC;
1374 		vbuf->sequence = inst->sequence_cap++;
1375 		if ((vbuf->flags & V4L2_BUF_FLAG_LAST) &&
1376 		    inst->enc_state == VENUS_ENC_STATE_DRAIN) {
1377 			inst->enc_state = VENUS_ENC_STATE_STOPPED;
1378 		}
1379 	} else {
1380 		vbuf->sequence = inst->sequence_out++;
1381 	}
1382 
1383 	v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1384 }
1385 
1386 static void venc_event_notify(struct venus_inst *inst, u32 event,
1387 			      struct hfi_event_data *data)
1388 {
1389 	struct device *dev = inst->core->dev_enc;
1390 
1391 	venc_pm_touch(inst);
1392 
1393 	if (event == EVT_SESSION_ERROR) {
1394 		inst->session_error = true;
1395 		venus_helper_vb2_queue_error(inst);
1396 		dev_err(dev, "enc: event session error %x\n", inst->error);
1397 	}
1398 }
1399 
1400 static const struct hfi_inst_ops venc_hfi_ops = {
1401 	.buf_done = venc_buf_done,
1402 	.event_notify = venc_event_notify,
1403 };
1404 
1405 static const struct v4l2_m2m_ops venc_m2m_ops = {
1406 	.device_run = venus_helper_m2m_device_run,
1407 	.job_abort = venus_helper_m2m_job_abort,
1408 };
1409 
1410 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1411 			  struct vb2_queue *dst_vq)
1412 {
1413 	struct venus_inst *inst = priv;
1414 	int ret;
1415 
1416 	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1417 	src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1418 	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1419 	src_vq->ops = &venc_vb2_ops;
1420 	src_vq->mem_ops = &vb2_dma_contig_memops;
1421 	src_vq->drv_priv = inst;
1422 	src_vq->buf_struct_size = sizeof(struct venus_buffer);
1423 	src_vq->allow_zero_bytesused = 1;
1424 	src_vq->min_queued_buffers = 1;
1425 	src_vq->dev = inst->core->dev;
1426 	src_vq->lock = &inst->ctx_q_lock;
1427 	if (inst->core->res->hfi_version == HFI_VERSION_1XX)
1428 		src_vq->bidirectional = 1;
1429 	ret = vb2_queue_init(src_vq);
1430 	if (ret)
1431 		return ret;
1432 
1433 	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1434 	dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1435 	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1436 	dst_vq->ops = &venc_vb2_ops;
1437 	dst_vq->mem_ops = &vb2_dma_contig_memops;
1438 	dst_vq->drv_priv = inst;
1439 	dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1440 	dst_vq->allow_zero_bytesused = 1;
1441 	dst_vq->min_queued_buffers = 1;
1442 	dst_vq->dev = inst->core->dev;
1443 	dst_vq->lock = &inst->ctx_q_lock;
1444 	return vb2_queue_init(dst_vq);
1445 }
1446 
1447 static void venc_inst_init(struct venus_inst *inst)
1448 {
1449 	inst->fmt_cap = &venc_formats[VENUS_FMT_H264];
1450 	inst->fmt_out = &venc_formats[VENUS_FMT_NV12];
1451 	inst->width = 1280;
1452 	inst->height = ALIGN(720, 32);
1453 	inst->out_width = 1280;
1454 	inst->out_height = 720;
1455 	inst->fps = 15;
1456 	inst->timeperframe.numerator = 1;
1457 	inst->timeperframe.denominator = 15;
1458 	inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1459 }
1460 
1461 static int venc_open(struct file *file)
1462 {
1463 	struct venus_core *core = video_drvdata(file);
1464 	struct venus_inst *inst;
1465 	int ret;
1466 
1467 	inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1468 	if (!inst)
1469 		return -ENOMEM;
1470 
1471 	INIT_LIST_HEAD(&inst->dpbbufs);
1472 	INIT_LIST_HEAD(&inst->registeredbufs);
1473 	INIT_LIST_HEAD(&inst->internalbufs);
1474 	INIT_LIST_HEAD(&inst->list);
1475 	mutex_init(&inst->lock);
1476 	mutex_init(&inst->ctx_q_lock);
1477 
1478 	inst->core = core;
1479 	inst->session_type = VIDC_SESSION_TYPE_ENC;
1480 	inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1481 	inst->core_acquired = false;
1482 	inst->nonblock = file->f_flags & O_NONBLOCK;
1483 
1484 	if (inst->enc_state == VENUS_ENC_STATE_DEINIT)
1485 		inst->enc_state = VENUS_ENC_STATE_INIT;
1486 
1487 	venus_helper_init_instance(inst);
1488 
1489 	ret = venc_ctrl_init(inst);
1490 	if (ret)
1491 		goto err_free;
1492 
1493 	venc_inst_init(inst);
1494 
1495 	/*
1496 	 * create m2m device for every instance, the m2m context scheduling
1497 	 * is made by firmware side so we do not need to care about.
1498 	 */
1499 	inst->m2m_dev = v4l2_m2m_init(&venc_m2m_ops);
1500 	if (IS_ERR(inst->m2m_dev)) {
1501 		ret = PTR_ERR(inst->m2m_dev);
1502 		goto err_ctrl_deinit;
1503 	}
1504 
1505 	inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1506 	if (IS_ERR(inst->m2m_ctx)) {
1507 		ret = PTR_ERR(inst->m2m_ctx);
1508 		goto err_m2m_dev_release;
1509 	}
1510 
1511 	ret = hfi_session_create(inst, &venc_hfi_ops);
1512 	if (ret)
1513 		goto err_m2m_ctx_release;
1514 
1515 	v4l2_fh_init(&inst->fh, core->vdev_enc);
1516 
1517 	inst->fh.ctrl_handler = &inst->ctrl_handler;
1518 	v4l2_fh_add(&inst->fh);
1519 	inst->fh.m2m_ctx = inst->m2m_ctx;
1520 	file->private_data = &inst->fh;
1521 
1522 	return 0;
1523 
1524 err_m2m_ctx_release:
1525 	v4l2_m2m_ctx_release(inst->m2m_ctx);
1526 err_m2m_dev_release:
1527 	v4l2_m2m_release(inst->m2m_dev);
1528 err_ctrl_deinit:
1529 	v4l2_ctrl_handler_free(&inst->ctrl_handler);
1530 err_free:
1531 	kfree(inst);
1532 	return ret;
1533 }
1534 
1535 static int venc_close(struct file *file)
1536 {
1537 	struct venus_inst *inst = to_inst(file);
1538 
1539 	venc_pm_get(inst);
1540 	venus_close_common(inst);
1541 	inst->enc_state = VENUS_ENC_STATE_DEINIT;
1542 	venc_pm_put(inst, false);
1543 
1544 	kfree(inst);
1545 	return 0;
1546 }
1547 
1548 static const struct v4l2_file_operations venc_fops = {
1549 	.owner = THIS_MODULE,
1550 	.open = venc_open,
1551 	.release = venc_close,
1552 	.unlocked_ioctl = video_ioctl2,
1553 	.poll = v4l2_m2m_fop_poll,
1554 	.mmap = v4l2_m2m_fop_mmap,
1555 };
1556 
1557 static int venc_probe(struct platform_device *pdev)
1558 {
1559 	struct device *dev = &pdev->dev;
1560 	struct video_device *vdev;
1561 	struct venus_core *core;
1562 	int ret;
1563 
1564 	if (!dev->parent)
1565 		return -EPROBE_DEFER;
1566 
1567 	core = dev_get_drvdata(dev->parent);
1568 	if (!core)
1569 		return -EPROBE_DEFER;
1570 
1571 	platform_set_drvdata(pdev, core);
1572 
1573 	if (core->pm_ops->venc_get) {
1574 		ret = core->pm_ops->venc_get(dev);
1575 		if (ret)
1576 			return ret;
1577 	}
1578 
1579 	vdev = video_device_alloc();
1580 	if (!vdev)
1581 		return -ENOMEM;
1582 
1583 	strscpy(vdev->name, "qcom-venus-encoder", sizeof(vdev->name));
1584 	vdev->release = video_device_release;
1585 	vdev->fops = &venc_fops;
1586 	vdev->ioctl_ops = &venc_ioctl_ops;
1587 	vdev->vfl_dir = VFL_DIR_M2M;
1588 	vdev->v4l2_dev = &core->v4l2_dev;
1589 	vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1590 
1591 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1592 	if (ret)
1593 		goto err_vdev_release;
1594 
1595 	core->vdev_enc = vdev;
1596 	core->dev_enc = dev;
1597 
1598 	video_set_drvdata(vdev, core);
1599 	pm_runtime_set_autosuspend_delay(dev, 2000);
1600 	pm_runtime_use_autosuspend(dev);
1601 	pm_runtime_enable(dev);
1602 
1603 	return 0;
1604 
1605 err_vdev_release:
1606 	video_device_release(vdev);
1607 	return ret;
1608 }
1609 
1610 static void venc_remove(struct platform_device *pdev)
1611 {
1612 	struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1613 
1614 	video_unregister_device(core->vdev_enc);
1615 	pm_runtime_disable(core->dev_enc);
1616 
1617 	if (core->pm_ops->venc_put)
1618 		core->pm_ops->venc_put(core->dev_enc);
1619 }
1620 
1621 static __maybe_unused int venc_runtime_suspend(struct device *dev)
1622 {
1623 	struct venus_core *core = dev_get_drvdata(dev);
1624 	const struct venus_pm_ops *pm_ops = core->pm_ops;
1625 	int ret = 0;
1626 
1627 	if (pm_ops->venc_power)
1628 		ret = pm_ops->venc_power(dev, POWER_OFF);
1629 
1630 	return ret;
1631 }
1632 
1633 static __maybe_unused int venc_runtime_resume(struct device *dev)
1634 {
1635 	struct venus_core *core = dev_get_drvdata(dev);
1636 	const struct venus_pm_ops *pm_ops = core->pm_ops;
1637 	int ret = 0;
1638 
1639 	if (pm_ops->venc_power)
1640 		ret = pm_ops->venc_power(dev, POWER_ON);
1641 
1642 	return ret;
1643 }
1644 
1645 static const struct dev_pm_ops venc_pm_ops = {
1646 	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1647 				pm_runtime_force_resume)
1648 	SET_RUNTIME_PM_OPS(venc_runtime_suspend, venc_runtime_resume, NULL)
1649 };
1650 
1651 static const struct of_device_id venc_dt_match[] = {
1652 	{ .compatible = "venus-encoder" },
1653 	{ }
1654 };
1655 MODULE_DEVICE_TABLE(of, venc_dt_match);
1656 
1657 static struct platform_driver qcom_venus_enc_driver = {
1658 	.probe = venc_probe,
1659 	.remove = venc_remove,
1660 	.driver = {
1661 		.name = "qcom-venus-encoder",
1662 		.of_match_table = venc_dt_match,
1663 		.pm = &venc_pm_ops,
1664 	},
1665 };
1666 module_platform_driver(qcom_venus_enc_driver);
1667 
1668 MODULE_ALIAS("platform:qcom-venus-encoder");
1669 MODULE_DESCRIPTION("Qualcomm Venus video encoder driver");
1670 MODULE_LICENSE("GPL v2");
1671