radeon_vce.c revision 01e04c3f
1/**************************************************************************
2 *
3 * Copyright 2013 Advanced Micro Devices, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28/*
29 * Authors:
30 *      Christian König <christian.koenig@amd.com>
31 *
32 */
33
34#include <stdio.h>
35
36#include "pipe/p_video_codec.h"
37
38#include "util/u_video.h"
39#include "util/u_memory.h"
40
41#include "vl/vl_video_buffer.h"
42
43#include "r600_pipe_common.h"
44#include "radeon_video.h"
45#include "radeon_vce.h"
46
47#define FW_40_2_2 ((40 << 24) | (2 << 16) | (2 << 8))
48#define FW_50_0_1 ((50 << 24) | (0 << 16) | (1 << 8))
49#define FW_50_1_2 ((50 << 24) | (1 << 16) | (2 << 8))
50#define FW_50_10_2 ((50 << 24) | (10 << 16) | (2 << 8))
51#define FW_50_17_3 ((50 << 24) | (17 << 16) | (3 << 8))
52#define FW_52_0_3 ((52 << 24) | (0 << 16) | (3 << 8))
53#define FW_52_4_3 ((52 << 24) | (4 << 16) | (3 << 8))
54#define FW_52_8_3 ((52 << 24) | (8 << 16) | (3 << 8))
55#define FW_53 (53 << 24)
56
57/**
58 * flush commands to the hardware
59 */
60static void flush(struct rvce_encoder *enc)
61{
62	enc->ws->cs_flush(enc->cs, PIPE_FLUSH_ASYNC, NULL);
63	enc->task_info_idx = 0;
64	enc->bs_idx = 0;
65}
66
67#if 0
68static void dump_feedback(struct rvce_encoder *enc, struct rvid_buffer *fb)
69{
70	uint32_t *ptr = enc->ws->buffer_map(fb->res->buf, enc->cs, PIPE_TRANSFER_READ_WRITE);
71	unsigned i = 0;
72	fprintf(stderr, "\n");
73	fprintf(stderr, "encStatus:\t\t\t%08x\n", ptr[i++]);
74	fprintf(stderr, "encHasBitstream:\t\t%08x\n", ptr[i++]);
75	fprintf(stderr, "encHasAudioBitstream:\t\t%08x\n", ptr[i++]);
76	fprintf(stderr, "encBitstreamOffset:\t\t%08x\n", ptr[i++]);
77	fprintf(stderr, "encBitstreamSize:\t\t%08x\n", ptr[i++]);
78	fprintf(stderr, "encAudioBitstreamOffset:\t%08x\n", ptr[i++]);
79	fprintf(stderr, "encAudioBitstreamSize:\t\t%08x\n", ptr[i++]);
80	fprintf(stderr, "encExtrabytes:\t\t\t%08x\n", ptr[i++]);
81	fprintf(stderr, "encAudioExtrabytes:\t\t%08x\n", ptr[i++]);
82	fprintf(stderr, "videoTimeStamp:\t\t\t%08x\n", ptr[i++]);
83	fprintf(stderr, "audioTimeStamp:\t\t\t%08x\n", ptr[i++]);
84	fprintf(stderr, "videoOutputType:\t\t%08x\n", ptr[i++]);
85	fprintf(stderr, "attributeFlags:\t\t\t%08x\n", ptr[i++]);
86	fprintf(stderr, "seiPrivatePackageOffset:\t%08x\n", ptr[i++]);
87	fprintf(stderr, "seiPrivatePackageSize:\t\t%08x\n", ptr[i++]);
88	fprintf(stderr, "\n");
89	enc->ws->buffer_unmap(fb->res->buf);
90}
91#endif
92
93/**
94 * reset the CPB handling
95 */
96static void reset_cpb(struct rvce_encoder *enc)
97{
98	unsigned i;
99
100	LIST_INITHEAD(&enc->cpb_slots);
101	for (i = 0; i < enc->cpb_num; ++i) {
102		struct rvce_cpb_slot *slot = &enc->cpb_array[i];
103		slot->index = i;
104		slot->picture_type = PIPE_H264_ENC_PICTURE_TYPE_SKIP;
105		slot->frame_num = 0;
106		slot->pic_order_cnt = 0;
107		LIST_ADDTAIL(&slot->list, &enc->cpb_slots);
108	}
109}
110
111/**
112 * sort l0 and l1 to the top of the list
113 */
114static void sort_cpb(struct rvce_encoder *enc)
115{
116	struct rvce_cpb_slot *i, *l0 = NULL, *l1 = NULL;
117
118	LIST_FOR_EACH_ENTRY(i, &enc->cpb_slots, list) {
119		if (i->frame_num == enc->pic.ref_idx_l0)
120			l0 = i;
121
122		if (i->frame_num == enc->pic.ref_idx_l1)
123			l1 = i;
124
125		if (enc->pic.picture_type == PIPE_H264_ENC_PICTURE_TYPE_P && l0)
126			break;
127
128		if (enc->pic.picture_type == PIPE_H264_ENC_PICTURE_TYPE_B &&
129		    l0 && l1)
130			break;
131	}
132
133	if (l1) {
134		LIST_DEL(&l1->list);
135		LIST_ADD(&l1->list, &enc->cpb_slots);
136	}
137
138	if (l0) {
139		LIST_DEL(&l0->list);
140		LIST_ADD(&l0->list, &enc->cpb_slots);
141	}
142}
143
144/**
145 * get number of cpbs based on dpb
146 */
147static unsigned get_cpb_num(struct rvce_encoder *enc)
148{
149	unsigned w = align(enc->base.width, 16) / 16;
150	unsigned h = align(enc->base.height, 16) / 16;
151	unsigned dpb;
152
153	switch (enc->base.level) {
154	case 10:
155		dpb = 396;
156		break;
157	case 11:
158		dpb = 900;
159		break;
160	case 12:
161	case 13:
162	case 20:
163		dpb = 2376;
164		break;
165	case 21:
166		dpb = 4752;
167		break;
168	case 22:
169	case 30:
170		dpb = 8100;
171		break;
172	case 31:
173		dpb = 18000;
174		break;
175	case 32:
176		dpb = 20480;
177		break;
178	case 40:
179	case 41:
180		dpb = 32768;
181		break;
182	case 42:
183		dpb = 34816;
184		break;
185	case 50:
186		dpb = 110400;
187		break;
188	default:
189	case 51:
190	case 52:
191		dpb = 184320;
192		break;
193	}
194
195	return MIN2(dpb / (w * h), 16);
196}
197
198/**
199 * Get the slot for the currently encoded frame
200 */
201struct rvce_cpb_slot *current_slot(struct rvce_encoder *enc)
202{
203	return LIST_ENTRY(struct rvce_cpb_slot, enc->cpb_slots.prev, list);
204}
205
206/**
207 * Get the slot for L0
208 */
209struct rvce_cpb_slot *l0_slot(struct rvce_encoder *enc)
210{
211	return LIST_ENTRY(struct rvce_cpb_slot, enc->cpb_slots.next, list);
212}
213
214/**
215 * Get the slot for L1
216 */
217struct rvce_cpb_slot *l1_slot(struct rvce_encoder *enc)
218{
219	return LIST_ENTRY(struct rvce_cpb_slot, enc->cpb_slots.next->next, list);
220}
221
222/**
223 * Calculate the offsets into the CPB
224 */
225void rvce_frame_offset(struct rvce_encoder *enc, struct rvce_cpb_slot *slot,
226		       signed *luma_offset, signed *chroma_offset)
227{
228	unsigned pitch, vpitch, fsize;
229
230	pitch = align(enc->luma->u.legacy.level[0].nblk_x * enc->luma->bpe, 128);
231	vpitch = align(enc->luma->u.legacy.level[0].nblk_y, 16);
232	fsize = pitch * (vpitch + vpitch / 2);
233
234	*luma_offset = slot->index * fsize;
235	*chroma_offset = *luma_offset + pitch * vpitch;
236}
237
238/**
239 * destroy this video encoder
240 */
241static void rvce_destroy(struct pipe_video_codec *encoder)
242{
243	struct rvce_encoder *enc = (struct rvce_encoder*)encoder;
244	if (enc->stream_handle) {
245		struct rvid_buffer fb;
246		rvid_create_buffer(enc->screen, &fb, 512, PIPE_USAGE_STAGING);
247		enc->fb = &fb;
248		enc->session(enc);
249		enc->feedback(enc);
250		enc->destroy(enc);
251		flush(enc);
252		rvid_destroy_buffer(&fb);
253	}
254	rvid_destroy_buffer(&enc->cpb);
255	enc->ws->cs_destroy(enc->cs);
256	FREE(enc->cpb_array);
257	FREE(enc);
258}
259
260static void rvce_begin_frame(struct pipe_video_codec *encoder,
261			     struct pipe_video_buffer *source,
262			     struct pipe_picture_desc *picture)
263{
264	struct rvce_encoder *enc = (struct rvce_encoder*)encoder;
265	struct vl_video_buffer *vid_buf = (struct vl_video_buffer *)source;
266	struct pipe_h264_enc_picture_desc *pic = (struct pipe_h264_enc_picture_desc *)picture;
267
268	bool need_rate_control =
269		enc->pic.rate_ctrl.rate_ctrl_method != pic->rate_ctrl.rate_ctrl_method ||
270		enc->pic.quant_i_frames != pic->quant_i_frames ||
271		enc->pic.quant_p_frames != pic->quant_p_frames ||
272		enc->pic.quant_b_frames != pic->quant_b_frames;
273
274	enc->pic = *pic;
275	get_pic_param(enc, pic);
276
277	enc->get_buffer(vid_buf->resources[0], &enc->handle, &enc->luma);
278	enc->get_buffer(vid_buf->resources[1], NULL, &enc->chroma);
279
280	if (pic->picture_type == PIPE_H264_ENC_PICTURE_TYPE_IDR)
281		reset_cpb(enc);
282	else if (pic->picture_type == PIPE_H264_ENC_PICTURE_TYPE_P ||
283	         pic->picture_type == PIPE_H264_ENC_PICTURE_TYPE_B)
284		sort_cpb(enc);
285
286	if (!enc->stream_handle) {
287		struct rvid_buffer fb;
288		enc->stream_handle = rvid_alloc_stream_handle();
289		rvid_create_buffer(enc->screen, &fb, 512, PIPE_USAGE_STAGING);
290		enc->fb = &fb;
291		enc->session(enc);
292		enc->create(enc);
293		enc->config(enc);
294		enc->feedback(enc);
295		flush(enc);
296		//dump_feedback(enc, &fb);
297		rvid_destroy_buffer(&fb);
298		need_rate_control = false;
299	}
300
301	if (need_rate_control) {
302		enc->session(enc);
303		enc->config(enc);
304		flush(enc);
305	}
306}
307
308static void rvce_encode_bitstream(struct pipe_video_codec *encoder,
309				  struct pipe_video_buffer *source,
310				  struct pipe_resource *destination,
311				  void **fb)
312{
313	struct rvce_encoder *enc = (struct rvce_encoder*)encoder;
314	enc->get_buffer(destination, &enc->bs_handle, NULL);
315	enc->bs_size = destination->width0;
316
317	*fb = enc->fb = CALLOC_STRUCT(rvid_buffer);
318	if (!rvid_create_buffer(enc->screen, enc->fb, 512, PIPE_USAGE_STAGING)) {
319		RVID_ERR("Can't create feedback buffer.\n");
320		return;
321	}
322	if (!radeon_emitted(enc->cs, 0))
323		enc->session(enc);
324	enc->encode(enc);
325	enc->feedback(enc);
326}
327
328static void rvce_end_frame(struct pipe_video_codec *encoder,
329			   struct pipe_video_buffer *source,
330			   struct pipe_picture_desc *picture)
331{
332	struct rvce_encoder *enc = (struct rvce_encoder*)encoder;
333	struct rvce_cpb_slot *slot = LIST_ENTRY(
334		struct rvce_cpb_slot, enc->cpb_slots.prev, list);
335
336	if (!enc->dual_inst || enc->bs_idx > 1)
337		flush(enc);
338
339	/* update the CPB backtrack with the just encoded frame */
340	slot->picture_type = enc->pic.picture_type;
341	slot->frame_num = enc->pic.frame_num;
342	slot->pic_order_cnt = enc->pic.pic_order_cnt;
343	if (!enc->pic.not_referenced) {
344		LIST_DEL(&slot->list);
345		LIST_ADD(&slot->list, &enc->cpb_slots);
346	}
347}
348
349static void rvce_get_feedback(struct pipe_video_codec *encoder,
350			      void *feedback, unsigned *size)
351{
352	struct rvce_encoder *enc = (struct rvce_encoder*)encoder;
353	struct rvid_buffer *fb = feedback;
354
355	if (size) {
356		uint32_t *ptr = enc->ws->buffer_map(fb->res->buf, enc->cs, PIPE_TRANSFER_READ_WRITE);
357
358		if (ptr[1]) {
359			*size = ptr[4] - ptr[9];
360		} else {
361			*size = 0;
362		}
363
364		enc->ws->buffer_unmap(fb->res->buf);
365	}
366	//dump_feedback(enc, fb);
367	rvid_destroy_buffer(fb);
368	FREE(fb);
369}
370
371/**
372 * flush any outstanding command buffers to the hardware
373 */
374static void rvce_flush(struct pipe_video_codec *encoder)
375{
376	struct rvce_encoder *enc = (struct rvce_encoder*)encoder;
377
378	flush(enc);
379}
380
381static void rvce_cs_flush(void *ctx, unsigned flags,
382			  struct pipe_fence_handle **fence)
383{
384	// just ignored
385}
386
387struct pipe_video_codec *rvce_create_encoder(struct pipe_context *context,
388					     const struct pipe_video_codec *templ,
389					     struct radeon_winsys* ws,
390					     rvce_get_buffer get_buffer)
391{
392	struct r600_common_screen *rscreen = (struct r600_common_screen *)context->screen;
393	struct r600_common_context *rctx = (struct r600_common_context*)context;
394	struct rvce_encoder *enc;
395	struct pipe_video_buffer *tmp_buf, templat = {};
396	struct radeon_surf *tmp_surf;
397	unsigned cpb_size;
398
399	if (!rscreen->info.vce_fw_version) {
400		RVID_ERR("Kernel doesn't supports VCE!\n");
401		return NULL;
402
403	} else if (!rvce_is_fw_version_supported(rscreen)) {
404		RVID_ERR("Unsupported VCE fw version loaded!\n");
405		return NULL;
406	}
407
408	enc = CALLOC_STRUCT(rvce_encoder);
409	if (!enc)
410		return NULL;
411
412	if (rscreen->info.drm_major == 3)
413		enc->use_vm = true;
414	if ((rscreen->info.drm_major == 2 && rscreen->info.drm_minor >= 42) ||
415            rscreen->info.drm_major == 3)
416		enc->use_vui = true;
417
418	enc->base = *templ;
419	enc->base.context = context;
420
421	enc->base.destroy = rvce_destroy;
422	enc->base.begin_frame = rvce_begin_frame;
423	enc->base.encode_bitstream = rvce_encode_bitstream;
424	enc->base.end_frame = rvce_end_frame;
425	enc->base.flush = rvce_flush;
426	enc->base.get_feedback = rvce_get_feedback;
427	enc->get_buffer = get_buffer;
428
429	enc->screen = context->screen;
430	enc->ws = ws;
431	enc->cs = ws->cs_create(rctx->ctx, RING_VCE, rvce_cs_flush, enc);
432	if (!enc->cs) {
433		RVID_ERR("Can't get command submission context.\n");
434		goto error;
435	}
436
437	templat.buffer_format = PIPE_FORMAT_NV12;
438	templat.chroma_format = PIPE_VIDEO_CHROMA_FORMAT_420;
439	templat.width = enc->base.width;
440	templat.height = enc->base.height;
441	templat.interlaced = false;
442	if (!(tmp_buf = context->create_video_buffer(context, &templat))) {
443		RVID_ERR("Can't create video buffer.\n");
444		goto error;
445	}
446
447	enc->cpb_num = get_cpb_num(enc);
448	if (!enc->cpb_num)
449		goto error;
450
451	get_buffer(((struct vl_video_buffer *)tmp_buf)->resources[0], NULL, &tmp_surf);
452
453	cpb_size = align(tmp_surf->u.legacy.level[0].nblk_x * tmp_surf->bpe, 128) *
454	  align(tmp_surf->u.legacy.level[0].nblk_y, 32);
455
456	cpb_size = cpb_size * 3 / 2;
457	cpb_size = cpb_size * enc->cpb_num;
458	if (enc->dual_pipe)
459		cpb_size +=  RVCE_MAX_AUX_BUFFER_NUM *
460			RVCE_MAX_BITSTREAM_OUTPUT_ROW_SIZE * 2;
461	tmp_buf->destroy(tmp_buf);
462	if (!rvid_create_buffer(enc->screen, &enc->cpb, cpb_size, PIPE_USAGE_DEFAULT)) {
463		RVID_ERR("Can't create CPB buffer.\n");
464		goto error;
465	}
466
467	enc->cpb_array = CALLOC(enc->cpb_num, sizeof(struct rvce_cpb_slot));
468	if (!enc->cpb_array)
469		goto error;
470
471	reset_cpb(enc);
472
473	goto error;
474
475	return &enc->base;
476
477error:
478	if (enc->cs)
479		enc->ws->cs_destroy(enc->cs);
480
481	rvid_destroy_buffer(&enc->cpb);
482
483	FREE(enc->cpb_array);
484	FREE(enc);
485	return NULL;
486}
487
488/**
489 * check if kernel has the right fw version loaded
490 */
491bool rvce_is_fw_version_supported(struct r600_common_screen *rscreen)
492{
493	switch (rscreen->info.vce_fw_version) {
494	case FW_40_2_2:
495	case FW_50_0_1:
496	case FW_50_1_2:
497	case FW_50_10_2:
498	case FW_50_17_3:
499	case FW_52_0_3:
500	case FW_52_4_3:
501	case FW_52_8_3:
502		return true;
503	default:
504		if ((rscreen->info.vce_fw_version & (0xff << 24)) == FW_53)
505			return true;
506		else
507			return false;
508	}
509}
510
511/**
512 * Add the buffer as relocation to the current command submission
513 */
514void rvce_add_buffer(struct rvce_encoder *enc, struct pb_buffer *buf,
515                     enum radeon_bo_usage usage, enum radeon_bo_domain domain,
516                     signed offset)
517{
518	int reloc_idx;
519
520	reloc_idx = enc->ws->cs_add_buffer(enc->cs, buf, usage | RADEON_USAGE_SYNCHRONIZED,
521					   domain, 0);
522	if (enc->use_vm) {
523		uint64_t addr;
524		addr = enc->ws->buffer_get_virtual_address(buf);
525		addr = addr + offset;
526		RVCE_CS(addr >> 32);
527		RVCE_CS(addr);
528	} else {
529		offset += enc->ws->buffer_get_reloc_offset(buf);
530		RVCE_CS(reloc_idx * 4);
531		RVCE_CS(offset);
532	}
533}
534