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      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 Knig <christian.koenig (at) 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  */
     60 static 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
     68 static 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  */
     96 static 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  */
    114 static 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  */
    147 static 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  */
    201 struct 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  */
    209 struct 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  */
    217 struct 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  */
    225 void 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  */
    241 static 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 
    260 static 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 
    308 static 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 
    328 static 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 
    349 static 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  */
    374 static void rvce_flush(struct pipe_video_codec *encoder)
    375 {
    376 	struct rvce_encoder *enc = (struct rvce_encoder*)encoder;
    377 
    378 	flush(enc);
    379 }
    380 
    381 static void rvce_cs_flush(void *ctx, unsigned flags,
    382 			  struct pipe_fence_handle **fence)
    383 {
    384 	// just ignored
    385 }
    386 
    387 struct 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 
    477 error:
    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  */
    491 bool 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  */
    514 void 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, RADEON_PRIO_VCE);
    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